JP7401894B2 - Target preparation time notification device for corrugated sheet box making machine - Google Patents

Description

The present invention relates to a target preparation time notification device for a corrugated sheet box making machine, and in particular, it calculates a target preparation time according to the work content required at the time of an order change in the production of corrugated boxes by a box making machine, and notifies the operator of the target preparation time. The present invention relates to a target preparation time notification device for a corrugated sheet box making machine.

BACKGROUND ART Box-making machines are conventionally known that produce corrugated boxes by printing, grooving, punching, and providing a plurality of ruled lines on corrugated cardboard sheets, and then bending and joining the sheets at the positions of these ruled lines. In recent years, in order to respond to the demand for small-volume production of other types of cardboard boxes in the industry as a whole, there has been a demand for the production of other types of cardboard boxes in small quantities. Under these circumstances, factories that use box-making machines to produce cardboard boxes are switching orders one after another from customers, producing cardboard boxes for a large number of orders, sometimes more than 100 per day. .

Here, for example, in Patent Document 1, in order to enable the worker to know the progress status of the work performed by the industrial machine, the time required for the work of the industrial machine is counted, and the time required for the predetermined work of the industrial machine is calculated. A work time notification device is disclosed that reports information on the time until the time reaches the maximum allowable work time. Specifically, in the invention of Patent Document 1, a maximum print preparation time is set, and when the time required for the entire print preparation exceeds the maximum print preparation time, print preparation excess information is notified.

Further, Patent Document 2 discloses a man-hour design support device that takes into account variations in the work time of workers and sets a total work time (man-hour) suitable for the work required for each printed item. Specifically, in the invention of Patent Document 2, the work required for each printing item is determined as setup work by linking pattern data, and the work time for each worker is determined for the work elements that make up the setup work. Based on the work element data, the total work time for setup work such as plate change and color change for each worker to print each print item is calculated.

Japanese Patent Application Publication No. 2010-120273 Japanese Patent Application Publication No. 2015-069323

Here, as described above, in a factory that produces cardboard boxes using a box-making machine, orders received from customers are switched one after another to produce cardboard boxes for a large number of orders. Therefore, when producing corrugated boxes for each order, before continuous feeding of corrugated sheets and starting production, order changes involving preparation work to match the specifications of the corrugated boxes for that order are carried out within one day. It is done many times.

Under these circumstances, in order changes that occur many times, if the time required to prepare the box making machine (preparation time) to produce cardboard boxes with specifications related to the next order can be shortened, the entire day can be reduced. production time can be shortened and production efficiency can be improved.
Here, many operations required for order changes in the box making machine are automated. However, tasks such as printing plate replacement, punching die (wooden pattern) replacement, trial processing, inspection, and adjustment require human labor, and these tasks depend on the skill level of the worker and the parts (printing plate). The work time (preparation time) will vary depending on the arrangement of the tools (such as , wooden molds, tools necessary for inspection and adjustment, etc.). Furthermore, the content of the work performed by the worker changes with each order change.

Here, the maximum print preparation time in Patent Document 1 is set to a constant value, and a common target preparation time is set for each order change, so if the order change involves less work, the work may be inefficient. Even so, the target preparation time is achieved, and this does not lead to a review of work setups or parts placement. On the other hand, in the case of an order change that requires a lot of work, even if the setup is devised and work is done efficiently, the target preparation time cannot be achieved and the motivation of the workers decreases.

Furthermore, in Patent Document 2, the printing item and the setup work are defined in a one-to-one relationship, and the printing item related to the previous order is not taken into consideration. When using the same plates and colors, the setup work includes setup work that assumes that even plates and colors that do not need to be changed will be changed for the next printing item. In addition, in Patent Document 2, the setup work time is set for each worker, so even if that worker's work is inefficient, the target preparation time can be achieved, and the work of veteran workers This does not lead to reviewing the setup work in order to get closer to efficiency.

Therefore, the present invention sets a target preparation time according to the work content of an order change, and notifies the operator of the target preparation time, so that the worker can review the work setup and the arrangement of items necessary for the work during the preparation time at the time of the order change. An object of the present invention is to provide a target preparation time notification device for a corrugated sheet box making machine that can improve efficiency.

In order to achieve the above object, the present invention provides a corrugated sheet box making machine that calculates a target preparation time according to the work required at the time of an order change in the production of corrugated boxes by a box making machine and notifies the operator of the target preparation time. The preparation time notification device includes a storage unit that stores a predetermined production order of each order of cardboard boxes and each order information of the cardboard boxes, and a storage unit that stores a predetermined production order of each order of cardboard boxes, and a predetermined order change time according to the production order of each order. Based on both the previous order information of the order produced before and the information of the subsequent order produced after, the preparation work required for the production of the subsequent order at the time of an order change between those previous orders and the subsequent order. an order change pattern identification unit that specifies in advance an order change pattern, and a target preparation time calculation unit that calculates in advance a target preparation time, which is a predetermined time in which all preparation work should be completed, based on the specified order change pattern. and a notification command unit for notifying a worker of the target preparation time calculated at the time of a predetermined order change and/or before the start of a predetermined order change , and the preparation work is performed by the worker. The order change pattern identification unit includes the inspection of the trial-processed cardboard box, and the order change pattern identification unit determines the number of colors to be used for printing in subsequent orders based on the post-order information after the order change, and the number of colors to be used for inspection of the printed part of the cardboard box. Based on the number of specified colors, the target preparation time calculation unit calculates a longer target preparation time as the number of colors to be inspected increases .

According to the present invention configured in this manner, the target preparation time corresponding to the content of preparation work that differs for each order change is notified to the worker based on both the previous order information and the subsequent order information before and after the order change. , it is possible to make the worker understand the actual preparation work time relative to the target preparation time while maintaining motivation to complete the work within the target preparation time. As a result, workers are made aware of the need to review the arrangements for preparatory work and the arrangement of items such as prescribed replacement parts and tools necessary for preparatory work, and when workers carry out such reviews, Preparation work at the time of order change can be made more efficient.
Further, according to the present invention configured as described above, the target preparation time is calculated based on the number of colors to be used for printing in the subsequent order after the order change. For example, if a large number of colors are used in an order, it will take longer for the operator to inspect the sample processed product, and accordingly, the time required to complete all the necessary work when changing orders will also increase. become longer. Therefore, according to the present invention, the target preparation time is calculated longer as the number of colors increases, so that the target preparation time to be notified becomes more appropriate.
Furthermore, in order to achieve the above object, the present invention provides a corrugated sheet box making machine that calculates a target preparation time according to the work content required when changing orders for the production of corrugated boxes by a box making machine and notifies the operator of the target preparation time. The target preparation time notification device includes a storage unit that stores a predetermined production order of each order of cardboard boxes and each order information of the cardboard boxes, and a storage unit that stores a predetermined production order of each order of cardboard boxes, and a storage unit that stores a predetermined production order of each order. Based on both the previous order information of the order produced before the time of the change and the information of the subsequent order produced later, the necessary information for the production of the subsequent order at the time of an order change between those previous orders and the subsequent order is determined. an order change pattern identification unit that identifies preparatory work as an order change pattern; and a target preparation time that preliminarily calculates a target preparation time, which is a predetermined time in which all preparatory work should be completed, based on the identified order change pattern. It has a calculation unit and a notification command unit for notifying the operator of the calculated target preparation time at the time of a predetermined order change and/or before the start of the predetermined order change, and the storage unit further includes a past The order change pattern specifying section further refers to the order information produced in the past in the storage section to determine whether the order information of subsequent orders produced after a predetermined order change is past order information. If the subsequent order information after the order change is a new order that is not included in the order information produced in the past, the target preparation time calculation unit determines whether the order information after the order change is a new order that is not included in the order information produced in the past. The feature is that the target preparation time is calculated longer than the case.
According to the present invention configured in this manner, the target preparation time corresponding to the content of preparation work that differs for each order change is notified to the worker based on both the previous order information and the subsequent order information before and after the order change. , it is possible to make the worker understand the actual preparation work time relative to the target preparation time while maintaining motivation to complete the work within the target preparation time. This will make workers aware of the need to review the arrangements for preparatory work and the arrangement of items such as prescribed replacement parts and tools necessary for preparatory work. Preparation work at the time of order change can be made more efficient.
Furthermore, according to the present invention configured as described above, the target preparation time is calculated depending on whether or not the subsequent order after the order change is a new order. Be consistent with the content. Here, it is assumed that a new order requires more time for inspection than an order that is not new. Therefore, according to the present invention, if the order is a new one, the target preparation time is calculated longer than if it is not a new order, so the target preparation time can be calculated more effectively and more appropriately..

In the present invention, preferably, each order information stored in the storage section includes information as to whether each printing unit is used for printing, and the order change pattern specifying section preferably includes information on previous orders before and after the order change, and information on subsequent orders. Based on both of the information, it is determined for each printing unit whether or not a printing plate needs to be replaced at the time of an order change, and the number of times that a necessary operator performs printing plate replacement at the time of an order change for the entire printing unit is determined. The target preparation time calculation unit calculates a longer target preparation time based on the specified number of printing plate exchanges, as the number of printing plate exchanges increases.
According to the present invention configured in this manner, the target preparation time is calculated based on the number of printing plate exchanges at the time of order change, so that the target preparation time corresponds to the actual work content of order change. For example, if the number of printing plate changes is large, the time required for the operator to complete all printing plate changes will be longer, and the time required for the operator to complete all the necessary work at the time of order change will be longer. The preparation time required also increases. Therefore, according to the present invention, the target preparation time is calculated to be longer as the number of printing plate exchanges increases, so that it is possible to notify the operator of an appropriate target preparation time. You can maintain your motivation to complete the preparation work within the day.

In the present invention, preferably, the box making machine automatically positions a predetermined movable member at the time of an order change, and the target preparation time is the same as that of the previous order, assuming that the printing plate is not replaced at the time of the order change. The first set time (lot end/machine set time (plain to plain)) from the end of production to the completion of positioning of the specified movable parts of the box making machine, and the printing plate exchange at the time of order change. Assuming that, the second setting time (machine set addition time (print plate exchange)) and the third set time (sheet set addition time), the fourth set time (paper feeding preparation time) from the start of the box making machine to the start of trial processing of the cardboard box, and the assumption that printing will not be performed on subsequent orders after the order change. 5th set time (trial processing/inspection) from the start of trial processing of a cardboard box to the time when the trial processing of the cardboard box is inspected and the production of subsequent orders of cardboard boxes by continuous paper feeding is started. (plain color)) and assuming that printing will be performed on the subsequent order after the order change, start trial processing of the cardboard box, inspect the trial-processed cardboard box, and start production of the subsequent order. This is the total time of the time required to complete the process and the sixth set time (inspection additional time (printing)), which is the difference between the fifth set time.
According to the present invention configured in this way, the target preparation time is calculated according to the work contents such as printing plate exchange and inspection of test-processed cardboard boxes, which differ for each order change, so that the target preparation time can be calculated more effectively. The preparation time can be calculated as a time that corresponds to the actual work content.

In the present invention, preferably, the target preparation time includes a set time for a color change time for replacing the ink of the printing device of the box making machine, and the target preparation time calculation section calculates the total time of the first to third set times. If the set time of the color change time is longer, the set time of the color change time is set instead of the first to third set times.
According to the present invention configured in this way, the target preparation time can be calculated more effectively and more appropriately.

In the present invention, preferably, the order change pattern is defined by a printing plate exchange pattern of the printing device of the box making machine, which is defined by the previous order information and the subsequent order information, and the order change pattern is defined by the previous order information and the subsequent order information. The order change pattern specifying unit specifies the order change pattern including the pattern for changing the printing plate and the pattern for changing the wooden pattern, and stores the order change pattern in the storage unit. stores the identified order change pattern and the target preparation time calculated by the target preparation time calculation unit as data, and the notification command unit stores the target preparation time stored in association with this order change pattern. Notify workers.
According to the present invention configured in this way, it is possible to notify the worker of the target preparation time more effectively and more appropriately.

In the present invention, preferably, the preparatory work includes positioning of predetermined movable members automatically performed by the box-making machine, replacing printing plates, replacing wooden molds, and inspecting trial-processed cardboard boxes performed by the operator. The storage unit stores the set time for positioning a predetermined movable member, which is preset based on the actual measured value of the preparatory work automatically performed by the box making machine, and the actual measurement of the preparatory work performed by an operator skilled in each work. The data is stored in advance based on the value and the set times for stamp exchange, wooden mold exchange, and inspection of trial-processed cardboard boxes to be executed by the operator, and are stored in association with the order change pattern. The target preparation time is the set time for the memorized positioning of predetermined movable parts that is automatically executed by the box making machine, and the time for changing the printing plate, replacing the wooden mold, and inspecting the trial-processed cardboard boxes that are executed by the operator. The settings are based on data including the setting time.
According to the present invention configured in this way, the target preparation time can be calculated more appropriately. More specifically, the target preparation time is set based on the actual measurements of the preparation work automatically performed by the box making machine and the actual measurements of the preparation work performed by workers skilled in each task. The target preparation time, which is the predetermined time for completion, can be set to a more appropriate time.

In the present invention, preferably, the corrugated sheet box making machine includes a paper feeding device that feeds the corrugated sheets one by one, a printing device that prints on the corrugated sheets, and a device that adds ruled lines to the corrugated sheets, cuts grooves, and forms joint allowances. A creaser slotter that forms punched parts in a predetermined shape on a corrugated sheet, a die cutter that supplies adhesive to the seam allowance, bends the corrugated sheet along the ruled lines, and joins the corrugated sheet into a box shape; It includes a counter ejector that counts the number of corrugated cardboard sheets, forms a batch of sheets equal to the number of bundled sheets, and sends out the batch.

According to the target preparation time notification device for a corrugated sheet box making machine of the present invention, the target preparation time is set according to the work contents of an order change, and the worker is notified of the target preparation time, so that the operator can prepare the work during the preparation time at the time of the order change. It is possible to improve the efficiency of work by reviewing the arrangement of items necessary for work.

1 is a schematic side view showing the overall configuration of a box making machine to which a target preparation time notification device for a corrugated sheet box making machine according to an embodiment of the present invention is applied. The target preparation time notification device for a corrugated sheet box making machine according to an embodiment of the present invention and the basic operation of the box making machine will be explained below to explain the production flow of corrugated boxes in one order cycle and the concept of production time used in the system. FIG. 3 is a time chart for explaining the concept of preparation time for calculating the target preparation time in the preparation time of the production time in the time chart shown in FIG. 2. FIG. 7 is a chart showing target preparation time data for each order change pattern for calculating a target preparation time in a target preparation time notification device of a box making machine equipped with a printing device in which a printing cylinder moves up and down according to the present embodiment. It is a chart showing target preparation time data by order change pattern for calculating a target preparation time in a target preparation time notification device of a box making machine equipped with a printing device in which a printing cylinder does not move up and down according to the present embodiment. 7 is a chart showing set time data for each job, which is a standard for determining target preparation time data for each order change pattern according to the present embodiment. FIG. 3 is a conceptual diagram for explaining a method of setting target preparation times in first to third preparation stages according to the present embodiment. FIG. 2 is a conceptual diagram for explaining a method of setting target preparation times in first and second preparation stages according to the present embodiment. FIG. 2 is a conceptual diagram for explaining a method of setting target preparation times in first and second preparation stages according to the present embodiment. It is a conceptual diagram for explaining the setting method of the target preparation time in the 3rd preparation stage by this embodiment. 1 is a block diagram showing a schematic configuration of a target preparation time notification device and its system according to the present embodiment. FIG. 2 is a chart showing an example of basic information on orders used in the target preparation time notification device and the system according to the present embodiment. It is a chart showing an example of a method of counting each required time in the target preparation time notification device according to the present embodiment. It is a chart showing an example of a method of counting each required time in the target preparation time notification device according to the present embodiment. 7 is a chart showing an example of information for specifying an order change pattern in the target preparation time notification device according to the present embodiment. It is a chart showing an example of performance information for each order change pattern in the target preparation time notification device according to the present embodiment. 2 is a chart showing an example of analysis information for each task and time in the target preparation time notification device and its system according to the present embodiment. 2 is a chart showing an example of comparative information for each task and time in the target preparation time notification device and its system according to the present embodiment. It is a flowchart which shows the control content performed by the target preparation time notification apparatus of this embodiment. 17A is a flowchart showing control details executed by the target preparation time notification device of the present embodiment, shown together with FIG. 17A. It is a flowchart which shows the 1st control content performed by the order change pattern identification part of the target preparation time notification apparatus of this embodiment. It is a flowchart which shows the 2nd control content performed by the order change pattern identification part of the target preparation time notification apparatus of this embodiment. It is a flowchart which shows the 3rd control content performed by the order change pattern identification part of the target preparation time notification apparatus of this embodiment. It is a flowchart which shows the 3rd control content performed by the order change pattern identification part of the target preparation time notification apparatus of this embodiment shown with FIG. 20A. 12 is a chart showing set time data for each task, which is a standard for determining target preparation time data for each order change pattern according to a modified example of the embodiment of the present invention. It is a conceptual diagram for explaining the setting method of the target preparation time in the 3rd preparation stage by the modification of embodiment of this invention.

First, with reference to FIG. 1, a target preparation time notification device for a corrugated sheet box making machine according to an embodiment of the present invention and the overall configuration of the corrugated sheet box making machine to which the system is applied will be described. FIG. 1 is a schematic side view showing the overall configuration of a corrugated sheet box making machine to which a target preparation time notification device and the system are applied for a corrugated sheet box making machine according to an embodiment of the present invention.
As shown in FIG. 1, reference numeral 1 indicates a corrugated cardboard sheet box making machine, and this corrugated sheet box making machine 1 includes a sheet feeder 2 that feeds corrugated cardboard sheets S one by one, and a sheet feeding device 2 that prints on the corrugated cardboard sheets S. a creaser slotter 4 that adds ruled lines to the corrugated cardboard sheet S, cuts grooves, and forms a seam allowance; a die cutter 5 that forms punched portions of a predetermined shape on the corrugated cardboard sheet S; and a printing device 3 that applies adhesive to the seam allowance. A folder gluer 6 that supplies the corrugated cardboard sheets S along ruled lines and joins them into a box shape, and a counter ejector 8 that counts the corrugated cardboard sheets S joined in the box shape and forms a batch of a predetermined number of sheets and sends them out. , is provided. Reference numeral 7 indicates a sheet separation device that performs sheet separation operation when an order is to cut one corrugated sheet into multiple small corrugated sheets. It is a device. Reference numeral 9 indicates a binding machine for bundling batches, and this binding machine 9 is equipment provided incidentally to the box making machine 1.

First, the sheet feeding device 2 of the box making machine 1 will be explained.
The paper feeder 2 has a suction box 20, and a front gate 22 and a back guide 23 are provided on a table 21 forming the upper surface of the suction box 20. A plurality of corrugated cardboard sheets S manufactured by a corrugator (not shown) are stacked between the front gate 22 and the back guide 23. The front gate 22 is arranged so that the corrugated cardboard sheets S are sent out one by one from the gap between the table 21 and the front gate 22. The back guide 23 is configured to be movable in a direction parallel to the feed direction (sheet conveyance direction) FD, and thereby, between the front gate 22 and the back guide 23, corrugated sheets S having different lengths in the sheet conveyance direction are arranged. It is ready for loading. Further, a suction device 24 is attached to the lower part of the suction box 20 for sucking the air inside the suction box 20.

Further, the sheet feeding device 2 includes a plurality of sheet feeding rollers 25 arranged in parallel along the feeding direction FD and a direction perpendicular thereto, and a plurality of sheet feeding rollers 25 extending between these sheet feeding rollers 25 . It has a grate 26 which is a plate-like member that can be moved up and down relative to the main body. A urethane member is provided on the outer circumferential surface of the paper feed roller 25 to generate frictional force with the sheet S to increase the gripping force of the sheet S.
Continuous paper feeding by the paper feeding roller 25 is performed by lowering the grate 26 below the paper feeding roller 25 and bringing the lowest sheet S among the stacked cardboard sheets S into contact with the paper feeding roller 25. At this time, the rotation of the paper feed roller 25 is transmitted to the lowermost sheet S, and the sheets S are sent out one by one toward the feed roll 27 in front. On the other hand, when the grate 26 is raised higher than the paper feed roller 25, the paper feed roller 25 comes out of contact with the corrugated sheet S, the rotation of the paper feed roller 25 is no longer transmitted to the sheet S, and paper feeding is stopped. Ru.

The sheet S that has reached the feed roll 27 is sent out to the printing device 3 by rotation of the feed roll 27. A rubber member is provided on the outer circumferential surface of the feed roll 27 to generate a frictional force with the sheet S to increase the grip force of the sheet S. The pair of upper and lower feed rolls 27 are configured such that the vertical gap between them can be adjusted according to the thickness of the sheet S.
Further, the sheet feeding device 2 is provided with a production number counting sensor 28 disposed downstream of the front gate 22 and upstream of the feed roll 27. The production number counting sensor 28 is a photoelectric sensor that detects the sheets S sent out one by one from the sheet feeding device 2, and counts the production number (the number of sheets actually fed and processed into boxes). The number of produced sheets may be counted using a detection signal from a photoelectric sensor (not shown) provided in the counter ejector 8, which will be described later.

Next, the printing device 3 will be explained.
The printing device 3 includes a conveyance device that conveys a corrugated cardboard sheet, and a plurality of printing units that print on the conveyed corrugated sheet. The plurality of printing units 30, 32 that print on the corrugated paperboard sheets S are equipped with printing cylinders 34, 36, and a printing plate 38 is attached to the outer peripheral surfaces of the printing cylinders 34, 36. Near these printing cylinders 34 and 36 are an anilox roll 33 for transferring ink supplied from an ink can 31 onto a printing plate 38, and a doctor roll 35 for removing excess ink from the surface of the anilox roll 33. is provided.
A press roll 37 is arranged below the printing cylinders 34, 36. The press roll 37 is movable up and down, and is configured so that the gap between it and the printing cylinders 34 and 36 can be adjusted according to the thickness of the sheet S.

In this printing device 3, when the printing cylinders 34 and 36 rotate once in accordance with the conveyance speed of the corrugated paperboard sheet S (basically synchronously), their printing plates 38 cause the corrugated paperboard sheet S to be placed in a predetermined position at a predetermined position. The color/design will be printed. The printed sheet S is supplied to the creaser slotter 4.

Here, the replacement work of the printing plate 38 in the printing device 3 and the two types of printing cylinders will be explained.
The printing plate 38 can be replaced by a printing plate according to the specifications of the order by the operator when an order is changed.
During the production of the previous order (printing cylinders 34, 36 of the type that can be moved up and down in the vertical direction, which will be described later) or during an order change, the operator After removing the printing plate 38 for ordering, the printing plate is replaced with a printing plate 38 for subsequent ordering. The printing plate 38 used is one that matches each ink color of each order.

Here, the printing device 3 includes a type in which the printing cylinders 34 and 36 can be moved up and down in the vertical direction (FIG. 1), and a type in which the printing cylinders 34 and 36 are in fixed positions, and the printing cylinders 34 and 36 are in a fixed position and cannot be moved up and down in the up and down direction with respect to the box making machine 1. There is a type that does not, and one type is set depending on the specifications of the box making machine 1.

In the case of the type in which the printing cylinders are raised and lowered, a frame (not shown) that supports the printing cylinders 34 and 36 and an ink supply mechanism such as the anilox roll 33 is configured as a lifting unit that can be raised and lowered.
In this type of printing device 3 that can be raised and lowered, even during an order to produce a cardboard box, the printing cylinders 34 and 36 that are not used for printing are fixed in the raised position, and the operator can move the printing plate 38 for the next order. It is replaceable.

Among the plurality of printing units, the printing unit (30, 32) used for printing during production lowers the elevating unit to bring the printing cylinder (34, 36) closer to the press roll (37). In this state, the printing cylinder rotates, and printing is performed while conveying the corrugated cardboard sheet between the printing plate (38) mounted on the printing cylinder and the press roll (37). On the other hand, in the printing units (30, 32) that are not used for printing during production, the elevating unit is raised to separate the printing cylinders (34, 36) from the press roll (37). This type of printing device uses a suction device or the like to convey the corrugated cardboard sheet, so the printing cylinder can be separated from the press roll.

In the case of the type in which the printing cylinders do not move up and down, all the printing cylinders (34, 36) are always used for transporting corrugated sheets during production of an order.
Among the plurality of printing units (30, 32), the unit used for printing during the production of cardboard boxes has a printing plate (38) attached to a printing cylinder, and the printing cylinder rotates to print the printing plate (38). ) and a press roll (37) to print while conveying the corrugated cardboard sheet between them.
On the other hand, for units that are not used for printing during production, a feeding plate (a plate exclusively used for conveyance, not shown) is attached to the printing cylinder, the printing cylinder is rotated, and the cardboard sheet is sandwiched between the feeding plate and the press roll. transport. Since such a feeding plate is not supplied with ink and no printing is performed even if it comes into contact with a corrugated board sheet, the feeding plate can be reused for multiple orders.
In this type of printing device 3 in which the printing cylinder does not move up and down, the printing cannot be replaced during production of a cardboard box order (during continuous paper feeding). During an order change, the operator slides the frame of the printing unit, enters between the frames and exchanges the printing plate, and after the exchange, moves out of the frame and closes the frame.

Next, ink replacement (color change) in the printing device 3 will be explained.
In the box making machine 1, when producing cardboard boxes related to an order, a plurality of printing units (30, 32) are selectively used depending on the number of colors (number of inks) required for printing the order. and print. Regardless of whether the above-mentioned printing cylinder can be moved up and down or not, ink can be replaced during the production of cardboard boxes.

Two ink cans 31 can be set in each printing unit, and the operator can set the ink cans 31 to be used in a subsequent order in advance during production of the previous order. As a result, if the printing units 30 and 32 are not used for printing in the previous order, ink replacement is automatically performed during production of the previous order. On the other hand, if the ink is used for printing on a previous order, the ink will be replaced automatically during the order change.

Next, the creaser slotter 4 will be explained.
The creaser slotter 4 includes a creaser unit 40 and a slotter unit 42. The creaser unit 40 includes a pair of upper and lower ruled line rollers that are moved and positioned in a transverse direction with respect to the conveyance direction of the sheet S in order to perform a ruled line process on a predetermined position of the sheet S. Further, the slotter unit 42 includes an upper slotter and a lower slotter. A slotter blade 43 is attached to the upper slotter and is positioned by moving in a transverse direction with respect to the conveying direction of the sheet S in order to perform grooving at a predetermined position of the sheet S. A groove into which the slotter blade 43 can fit is formed in the lower slotter.
The creaser slotter 4 uses the creaser unit 40 and the slotter unit 42 to apply creasing and grooving to the corrugated cardboard sheet S to form a seam allowance, and supplies the corrugated cardboard sheet S subjected to these processes to the die cutter 5. .

Next, the die cutter 5 will be explained.
The die cutter 5 includes a die cylinder 50 and an anvil cylinder 52. A wooden mold 54, such as a plywood veneer, equipped with a punching die for punching out the corrugated cardboard sheet S is attached to the outer peripheral surface of the die cylinder 50. The punching die (54) performs a punching process on a desired position of the corrugated cardboard sheet S that is continuously conveyed. The punching die (54) can be replaced by a punching die with a punching pattern corresponding to the order by the operator when changing the order.

Here, if the order requires punching, a wooden mold 54 for punching out the corrugated cardboard sheet S is attached to the die cylinder 50. There are two types of wooden molds: large wooden molds that punch out the entire shape of the sheet S (large wooden molds), and small wooden molds that punch out holes for handholds (small wooden molds). A wooden mold is used.
On the other hand, if the order does not require punching, a feed die (a die exclusively used for transportation) is attached to the die cylinder. When the die cylinder 50 rotates, the sheet S is sandwiched between the feed die and the anvil cylinder 52 and conveyed. The feeding die is not equipped with a punching blade and is not processed even if it comes into contact with the corrugated cardboard sheet, so the feeding die can be reused for multiple orders.
If a mold needs to be replaced during an order change, the operator removes the previous order mold attached to the die cylinder 50, and then replaces the mold by attaching a later order mold. During this order change operation, the worker slides the frame of the die cutter, enters between the frames and exchanges the wooden pattern, and after exchanging the die cutter moves out of the frame and closes the frame.

Next, the folder gluer 6 will be explained.
The folder gluer 6 includes a guide rail 60 along the conveyance direction of the corrugated cardboard sheet S. Two annular conveyance belts 62 are provided above the guide rail 60 and are arranged in a direction parallel to the sheet conveyance direction. The surface material of these conveyor belts 62 is made of rubber in order to generate frictional force with the sheet S and increase the gripping force of the sheet S. The folder gluer 6 is further provided with an adhesive supply device 64 , a folding bar 66 , and a folding belt 68 along the guide rail 60 and the conveyor belt 62 .
The folder gluer 6 supports and conveys the corrugated cardboard sheet S on which ruled lines and seam allowances are formed, using a guide rail 60 and a conveyor belt 62. While the sheet S is being conveyed, the folder gluer 6 applies adhesive to the splicing margin using an adhesive supply device 64, and folds the sheet S using a folding bar 66. Furthermore, the folder gluer 6 folds the folded sheet S using a folding belt 68 and glues the seam, thereby producing a box-shaped corrugated cardboard sheet S in a folded state.

Next, the counter ejector 8 will be explained.
The counter ejector 8 counts the box-shaped corrugated cardboard sheets S sequentially supplied from the sheet separating device 7, and forms a batch BT of a predetermined number of sheets (number of bundled sheets). The formed batch BT is sent out by the lower conveyor 80 toward the binding machine 9 connected to the downstream side of the box making machine 1, and the binding machine 9 bundles the transported batch BT for transportation. . The counter ejector 8 includes a photoelectric sensor (not shown) for counting the number of corrugated cardboard sheets S being conveyed.

Next, with reference to FIG. 2, the concept of the production flow and production time of a corrugated box in one order cycle by the corrugated sheet box making machine according to the embodiment of the present invention will be explained. FIG. 2 shows a target preparation time notification device for a corrugated sheet box making machine according to an embodiment of the present invention, and a box making machine for explaining the production flow of corrugated boxes in one order cycle and the concept of production time used in the system. 3 is a time chart showing the basic operation of the .
First, as shown in FIG. 2, in this embodiment, when the box making machine 1 produces cardboard boxes with different specifications and planned numbers (order quantities from customers) for each order, the production of the previous order is The point in time when the process ends is considered to be the same as the point in time when production for the current order starts. Similarly, the production end point for the current order is the production start point for the next order.

Here, in this embodiment, "production time" refers to the entire time related to the production of cardboard boxes, and the time for one cycle of an order shown in FIG. 2 corresponds to the production time of that order. This production time includes "operating time" when corrugated paperboard sheets S are continuously fed and processed into cardboard boxes, and when continuous paper feeding is stopped and order change work (positioning, printing plate, etc.) ``preparation time'' during which paper replacement, trial processing, inspection, and adjustment are being performed, and ``stop time'' during which continuous paper feeding is stopped and order change operations are not being performed. It is broadly divided into

As shown in FIG. 2, in this embodiment, the time when the preparation stage first begins is the time when production of a certain order starts. In this preparatory stage, in this embodiment, firstly, after stopping the paper feeding of the corrugated cardboard sheets S by the paper feeding device 2, the positioning of the movable members (mechanical parts) of the box making machine 1 is performed, for example, by adjusting the feed roll gap. Second, the operator performs tasks such as replacing printing plates and wooden molds, and thirdly, performs trial processing.

First, the first preparation stage (first order change work) is basically carried out by turning on the lot end switch in advance. A series of operations up to positioning are performed automatically by the machine. If you turn on the lot end switch during continuous paper feeding of orders, production will end when there are no cardboard sheets on the paper feed table, continuous paper feeding will stop automatically, and the main motor will automatically turn off. The machine decelerates and automatically starts positioning the movable member.
As described later, the series of operations from paper feeding stop to positioning start ("lot end operation" described later) is performed by the operator manually by operating the paper feed stop switch, main motor switch, order change switch, etc. Although this can be done manually, in order to proceed with the work efficiently, the lot end switch is often used to have the machine do it automatically.
Ink replacement starts after paper feeding stops, and is automatically performed in parallel with machine deceleration and positioning.

Next, the second preparation stage (second order change operation) is a stage that is performed after the lot completion operation of the first preparation stage or in parallel with the first preparation stage, and in this stage, A worker performs necessary work according to the specifications of the orders immediately before and after the order change. The main tasks performed by workers are changing printing plates, changing wooden molds, and setting sheets.
For example, the preparatory work performed by the operator is to remove the printing plates already installed in each of the printing cylinders 34 and 36 of the plurality of printing units 30 and 32 of the printing device 3, and then remove the printing plates that match the printing pattern of the current order. Similar to the work of installing a printing plate and replacing the printing plate, the work includes the work of installing a wooden pattern 54 of a punching die that matches the punching shape of the current order onto the die cylinder 50 of the die cutter 5. Further, the sheet S is set in the paper feeder 2 for the next third preparation stage.
The work of replacing printing plates, replacing wooden molds, and setting sheets can be done simultaneously by multiple people, but usually they are done after all the work of replacing printing plates and wooden molds is completed. , often completes the sheet set.
The work of replacing the ink supplied to each printing unit 30, 32 with an ink that matches the printing color of the current order (color change) is basically automatically performed by the box making machine 1.

Next, the third preparation stage (third order change work/trial machining stage) is a stage that is performed after the first and second preparation stages are completed, and in this stage, the operator switches the main motor switch. is manually turned on to start the box making machine 1, and the operator sets the operating speed (sheet conveyance speed) using each switch or touch panel display. Then, by operating a single sheet feed switch that feeds only one sheet S stacked on the sheet feed table 21, the sheet is processed on a trial basis, and the finished cardboard box is inspected.
If there are any defects as a result of the inspection, we will make adjustments to the machine and perform trial processing and inspection again. Then, the operating speed is adjusted so that good products can be stably obtained.
Once the inspection is complete, all the preparation stages are completed, and the operator operates the paper feed start switch to enter the operation stage in which corrugated sheets are continuously fed to produce corrugated boxes.

Next, the operating phase is the phase that takes place once this preparatory phase has been completed. In this operation stage, the operator operates a paper feed start switch that continuously feeds the sheets S loaded on the paper feed table 21 one by one, and starts production by continuous paper feeding at the adjusted operating speed. do.
After that, when the production of the set number of cardboard boxes based on the order quantity is completed, operate the paper feed stop switch that stops continuous paper feeding, stop the sheet feeding, and turn on the box making machine 1. make it stop. Alternatively, the operator may input the number of sheets to stop feeding in advance using the operation panel, and when the set number of sheets S to stop feeding is completed, continuous sheet feeding is automatically stopped.

The point at which the continuous paper feeding stops after the production of this number of corrugated boxes is finished is the start point of the preparation stage described above, and as described above, the corrugated boxes for the next order (subsequent order) are produced. Preparation work for the box making machine 1 for this purpose is started. At this time, when the operator turns off the main motor switch and presses the order change switch, positioning of the movable member of the box making machine for the next order is started. Alternatively, as described above, if the lot end switch is turned on in advance during continuous sheet feeding for the current order, continuous sheet feeding will automatically stop when there are no more sheets on the sheet feeding table 21. The main motor is automatically turned off and positioning of the movable member is automatically started.

Next, the concept of the preparation time for calculating the target preparation time in the target preparation time notification device for the corrugated sheet box making machine according to the embodiment of the present invention will be explained with reference to FIG. FIG. 3 is a time chart for explaining the concept of preparation time for calculating the target preparation time in the preparation time of the production time shown in the time chart shown in FIG.
In this embodiment, as shown in FIG. 3, as a concept of preparation time for calculating the target preparation time, the first to third preparation stages described above are defined as "lot end/machine set time (from plain to plain)". ”, “Machine set additional time (print plate exchange/wooden pattern exchange)”, “Sheet set additional time”, “Paper feeding preparation time”, “Trial processing/inspection time (plain)”, “Inspection additional time (printing/ In addition, in some cases, the concept of "color change time" is also considered.

First, as shown in FIG. 3, the "lot end/machine set time (from plain color to plain color)" that is set immediately after the start of the preparation time will be explained.
This "lot completion/machine set time (plain to plain)" is one of the target preparation times in the first preparation stage described above, and is the first target preparation time that is the target value to be achieved. This first target preparation time is based on the predetermined automatic positioning of the box making machine 1 from the time when paper feeding for the production of the previous order is stopped, assuming that no printing plates or wooden molds are exchanged at the time of order change. is the time until completion. It is assumed that the time when the paper feeding for the production of the previous order is stopped coincides with the time when the lot finishing operation at the time of order change (start of preparation time) starts.
Note that the printing plate exchange refers to replacing the printing plate 38 of the printing device 3, and is hereinafter referred to as "printing plate replacement." Here, the work in which the operator removes the printing plate 38 for the previous order and attaches the printing plate 38 for the subsequent order to one printing cylinder is considered to be one printing plate exchange count.
Moreover, the wooden pattern exchange is the wooden pattern exchange of the wooden pattern 54 provided with the punching die of the die cutter 5, and is hereinafter referred to as "wooden pattern exchange".
Furthermore, "plain" in "plain to plain" is a concept assuming a basic order without printing and without punching.
Further, the predetermined automatic positioning of the box making machine 1 is automatically executed based on the basic information of the next order to be produced, for example, the positioning of the back guide 23, the vertical gap between the feed rolls 27, etc. This includes adjusting the three vertical gaps between the press roll 37 and the printing cylinders 34 and 36, and positioning the slotter blade 43 of the slotter unit 42 in the lateral direction (direction perpendicular to the conveying direction of the sheet S).

Here, the lot end operation can be performed automatically using a lot end switch, or by using an order change switch, which is basically used when starting production of the first order in a day. There is a way to do it manually, but here we assume that it will be done efficiently using a lot end switch.
This first target preparation time is set in advance based on actual measurements when the box making machine 1 is actually operated in a predetermined order. More specifically, after the box making machine 1 automatically stops paper feeding (at the start of the preparation time), the main motor is automatically turned off and the machine speed is reduced from the average operating speed (mechanical speed of the box making machine 1). , is preset as data corresponding to an order change pattern to be described later, based on actual measured values until the above-mentioned predetermined automatic positioning of the box making machine 1 is completed.
Here, in this embodiment, a series of operations from stopping paper feeding to starting positioning is defined as a "lot end operation," and the subsequent automatic position adjustment described above is defined as an "automatic machine set." FIG. 3 shows their "lot end/machine set time (from plain color to plain color)".

Next, as shown in FIG. 3, the "machine set additional time (print plate exchange/wooden pattern exchange)" which is set as the time after the first target preparation time will be explained.
This "machine set additional time (print plate exchange/wooden pattern exchange)" is one of the target preparation times in the second preparation stage mentioned above, and is the second target preparation time that is the target value to be achieved. . Specifically, this second target preparation time is calculated by the operator from the start of the preparation time (the start of the first target preparation time) when exchanging printing plates and molds at the time of order change. This is the time difference between the time required to complete printing plate exchange and wooden mold exchange and the above-mentioned "lot completion/machine set time (from plain color to plain color)".
In this embodiment, it is assumed that the printing plate exchange and the wooden mold exchange by the operator are performed in parallel with the automatic positioning operation of the movable members of the box making machine (such as the feed roll 27 described above). Furthermore, it is assumed that the replacement work by the operator has not yet been completed when the first target preparation time, ``lot end/machine set time (plain to blank),'' has elapsed. In this embodiment, the concept of adding such a difference is "machine set addition time (print plate exchange/wooden pattern exchange)".

This second target preparation time is preset as data corresponding to an order change pattern described later, based on actual measurements when a worker skilled in each task (veteran worker) performs the task.
In this embodiment, it is assumed that the printing device of the box making machine is of a type in which the printing cylinder moves up and down, which will be described later, and the printing plate is replaced at the time of an order change.In this case, the replacement work is completed. Since it is necessary to lower the elevating unit later, the machine set addition (printing plate exchange) time is set in consideration of the time including the elevating unit lowering time.
On the other hand, if the printing device of the box-making machine is of a type in which the printing cylinder does not move up and down, as will be described later, the second target preparation time does not include the lifting unit lowering time.
Here, in this embodiment, the work of replacing printing plates and wooden molds by the worker in the second preparation stage is defined as "worker machine set." Furthermore, a concept that includes both the "automatic machine set" in the first preparation stage described above and the "worker machine set" in the second preparation stage is defined as a "machine set". In FIG. 3, the "automatic machine set" and the "worker machine set" are shown as a "machine set".

Next, as shown in FIG. 3, the "sheet set addition time" that is set as the time after the second target preparation time will be explained.
This "sheet set addition time" is one of the target preparation times in the second preparation stage described above, and is the third target preparation time which is the target value to be achieved. Specifically, this third target preparation time is defined as "the time from when all machine set-up (automatic positioning and operator replacement work) is completed until the time when the operator completes sheet setting and turns on the main motor."It's time.
In this embodiment, it is assumed that the sheet setting by the operator is performed in parallel with the "machine setting", and that the sheet setting is not yet completed when all the "machine setting" is completed. In this embodiment, the concept of adding such a time difference is referred to as "sheet set addition time."

This third target preparation time is preset as data corresponding to an order change pattern to be described later, based on actual measurements when a worker skilled in each task performs the task. On the other hand, in the case of a box making machine equipped with an auto feeder device that automatically sets sheets, the third target preparation time is preset as data corresponding to the order change pattern described later, based on the actual measurement value of the auto feeder device. Ru.
In addition, in this embodiment, when it is assumed that the wooden mold is replaced at the time of order change, and/or when the printing plate is replaced at the time of order change in "a type in which the printing cylinder does not go up and down", which will be described later, the wooden mold and Since it is necessary to close the frame after the printing plate replacement work is completed, the sheet setting time is set in consideration of the frame closing time. On the other hand, in the "type in which the printing cylinder moves up and down", which will be described later, the frame closing time is not included in the third target preparation time.

Next, as shown in FIG. 3, the "color change time" that is set to be parallel to the first to third target preparation times will be explained.
This "color change time" is the time from the start of the preparation time (the start of the first target preparation time) until the ink replacement is completed. It is assumed that ink replacement is performed by setting ink cans in advance, and when production ends and paper feeding is stopped, ink replacement automatically starts and ends at the same time in multiple printing units.
The setting value of "color change time" is one value regardless of the number of printing units that perform ink replacement, and is set in advance based on the actual value of ink replacement of the machine. In addition, in this embodiment, this "color change time" is not included in the target preparation time in the first to third preparation stages, but the preset color change time does not include the above-mentioned first to third preparation stages. If the color change time is longer than the total of the three target preparation times, this preset color change time is set instead of the first to third target preparation times described above.

Next, as shown in FIG. 3, the "sheet feeding preparation time" that is set as the time after the third target preparation time will be explained.
This "paper feeding preparation time" is one of the target preparation times in the third preparation stage described above, and is the fourth target preparation time which is the target value to be achieved. Specifically, the fourth target preparation time is the time from when all the "machine sets" are completed and the main motor switch is turned on by the operator until one sheet is fed.
In this embodiment, it is assumed that after turning on the main motor, the speed of the machine is immediately increased to feed one sheet of paper.
The set value of the "sheet feeding preparation time" is preset as data corresponding to an order change pattern described later, based on the actual value of the time taken for the machine to speed up to an average operating speed.
In this embodiment, the operation from when the main motor is turned on until one sheet is fed is defined as "sheet feeding preparation."

Next, as shown in FIG. 3, the "trial processing/inspection time (plain)" that is set as the time after the fourth target preparation time will be described.
This "trial processing/inspection time (plain)" is one of the target preparation times in the third preparation stage described above, and is the fifth target preparation time which is the target value to be achieved. Specifically, this fifth target preparation time is the time from feeding one sheet immediately after the order change, assuming that no printing or punching is performed on the order (in the case of "plain color" described above). This is the time from the completion of inspection to the start of production of the next order (continuous paper feeding).
In this embodiment, it is assumed that the product passes the inspection once and does not adjust the machine or perform a second trial process.
The setting value for "Trial processing/inspection time (plain)" is the actual value measured by a worker skilled in each task inspecting the quality (box dimensions, joining accuracy, etc.) of a plain cardboard box without printing or punching. Based on this, data is set in advance as data corresponding to an order change pattern, which will be described later.
In this embodiment, the operation from when one sheet is fed to when continuous sheet feeding starts is defined as "trial processing/inspection."

Next, as shown in FIG. 3, the "inspection additional time (printing/punching)" that is set as the time after the fifth target preparation time will be explained.
This "inspection additional time (printing/punching)" is one of the target preparation times in the third preparation stage described above, and is the sixth target preparation time which is the target value to be achieved. Specifically, this sixth target preparation time is when printing or punching is performed on a subsequent order after an order change, after feeding one sheet, completing inspection, and starting production for the next order. This is the difference between the time it takes to complete the process and the above-mentioned "trial processing/inspection time (plain)".
In this embodiment, it is assumed that the quality of printing and punching of each color is sequentially inspected one by one. In the present embodiment, the concept of adding the difference in time required for inspection to the case of "plain color" is defined as "inspection additional time (printing/punching)."
The set value of the "inspection additional time (printing/punching)" is preset as data corresponding to an order change pattern described later, based on the actual measurement value when an operator skilled in each work performs the work.
Here, as described above, in this embodiment, the operation from when one sheet is fed to when continuous sheet feeding starts is defined as "trial processing/inspection."

Next, referring to FIGS. 4 to 6, the target preparation time is calculated based on the first to sixth target preparation times and color change times described above in the target preparation time notification device for the corrugated sheet box making machine according to the embodiment of the present invention. The target preparation time data by order change pattern and the set time data by work to be calculated will be explained. FIG. 4 is a chart showing target preparation time data by order change pattern for calculating a target preparation time in a target preparation time notification device of a box making machine equipped with a printing device in which a printing cylinder moves up and down, according to the present embodiment, FIG. 5 is a chart showing target preparation time data by order change pattern for calculating the target preparation time in the target preparation time notification device of the box making machine equipped with the printing device in which the printing cylinder does not move up and down according to the present embodiment. 6 is a chart showing set time data for each job, which is a standard for determining target preparation time data for each order change pattern according to the present embodiment.

In this embodiment, as shown in FIGS. 4 and 5, a printing pattern and a wooden pattern are set as order change patterns based on the basic information of the previous order and the subsequent order (see FIG. 11 described later). A target preparation time that is the sum of the first to sixth target preparation times described above is set in advance according to the combination. Furthermore, when setting the target preparation time in advance, the color change time is also taken into consideration in some cases.
Here, as shown in Figures 4 and 5, as the definition of the printing pattern "□■Color change", the value of "□" indicates the number of times the printing plate is replaced during order change, and the value of "■" , indicates the number of colors to be used in the order after the order change, "color change" indicates that ink is replaced during the order change in at least one printing unit, and the definition of the wooden pattern "□■" , "□" indicates the pattern used in the order before the order change, and "■" indicates the pattern used in the order after the order change. , indicates a feeding pattern, "large" indicates a large pattern, and "small" indicates a small pattern.

For example, in FIG. 4, the printing pattern has one printing plate exchange during an order change, two colors to be used in the order after the order change, and at least one printing pattern. The target preparation time ( The total value of the first to sixth target preparation times described above is 370 seconds. Such a value is set based on the work-specific setting time data shown in FIG. 6, as described later.
Further, although the numerical values of each target preparation time are omitted in FIG. 5 as well, similar to FIG. 4, they are set based on the set time data for each task shown in FIG. 6, which will be described later.

In this embodiment, the term "printing plate" for printing plate exchange basically refers to the "printing plate" used for printing and the "feeding plate" used to send the corrugated cardboard sheet S without printing. Defined as a term that includes.

Here, in a box-making machine equipped with a printing device in which the printing cylinder moves up and down (a box-making machine in which the data shown in FIG. Do not use the feed version as it will make you wait. That is, the "printing plate" in the printing pattern shown in FIG. 4 indicates only the printing plate used for printing.

For example, as an example of the data in Figure 4, in the "12 color change" pattern, the printing plate is changed once during the order change (during preparation time), and in the subsequent order, two colors are changed using two printing units (printing cylinders). It is shown that printing is performed and that ink is replaced during an order change in at least one printing cylinder.

In this case, while two colors are printed in the subsequent order, the printing plates are only changed once during the order change because one of the two colors in the subsequent order is printed on the cardboard box of the previous order. This means that they are being replaced during production. More specifically, in a box-making machine in which the printing cylinder can be raised and lowered, the printing cylinder that is not used for printing during the production of the previous order is placed on standby in the raised position, and the operator is able to move the printing cylinder that will not be used during the production of the previous order. This is based on the premise that the printing cylinder for one of the two colors ordered later is to be replaced in the printing cylinder.
In this way, in FIG. 4, for example, patterns such as "01" and "23" indicate patterns in which printing plates are replaced during production of the previous order. This pattern is used only for

In this way, the "target preparation time" in the embodiment of the present invention refers to, for example, parts such as printing plates that are replaced during an order change (preparation time), or parts that can be replaced during production of a previous order. It is set as a target preparation time based on the premise that all tasks are performed efficiently, such as replacing or replacing items.
In addition, like the first to sixth target preparation times mentioned above, those target preparation times are for people who are skilled at each task, who can properly prepare the printing plates and jigs, and who are able to prepare the printing plates and jigs appropriately. It is based on the actual measurement of the work of a skilled worker who can efficiently perform the work of replacing wooden molds and wooden molds.In this respect as well, the "target preparation time" in FIG. 4 of the embodiment of the present invention is This is set as the target preparation time for the first to third preparation times on the premise that the preparation time is efficiently performed.

On the other hand, in a box-making machine equipped with a printing device in which the printing cylinder does not move up and down (a box-making machine in which the data shown in Figure 5 is used), during an order change, a worker places a feeding plate on a printing cylinder that will not be used for printing in a later order. It is assumed that it will be installed. That is, the "printing plate" of the printing pattern shown in FIG. 5 also includes the feeding plate.

For example, to explain an example of the data in FIG. 5, in the "21 color change" pattern, the printing plate is replaced twice during the order change (during preparation time), and one printing unit (printing cylinder) is replaced once in the subsequent order. Indicates that the color will be printed. It also indicates that ink is replaced during the order change in at least one printing cylinder.
In this case, one color is printed in the later order, but the printing plate is changed twice during the order change, meaning that one of the two times the printing plate is changed to the forwarding plate. It means.
As described above, in FIG. 5, patterns such as "10" and "32" are patterns used only for box making machines equipped with a printing device in which the printing cylinder does not move up and down.

In addition, the target preparation time in FIG. 5 is also based on actual measurements of each task performed by an operator skilled in replacing printing plates and wooden molds, as in FIG. 4 described above. The "target preparation time" in FIG. 5 of the embodiment is set as the target preparation time of the first to third preparation times on the premise that all tasks are performed most efficiently.

Next, the work-specific setting time table shown in FIG. 6 will be explained.
The set time data for each task shown in FIG. 6 is reference data used to determine each target preparation time in the target preparation time table for each order change pattern shown in FIG. 4 or 5.
The data shown in FIG. 6 are the above-mentioned first target preparation time "lot completion/machine set time (plain color to plain color)" and second target preparation time "additional machine set time (print plate exchange/wooden pattern exchange)". ", 3rd target preparation time "Sheet set addition time", 4th target preparation time "Paper feeding preparation time", 5th target preparation time "Trial processing/inspection time (plain)", 6th target preparation time The time "inspection additional time (printing/punching)" and "color change time" are determined respectively.
The data shown in FIG. 6 is standard data/initial setting data set on the assumption that the order change work will be carried out efficiently.In this embodiment, the data shown in FIG. These settings are based on actual measurements taken when a skilled worker performs each of the first to third preparation steps.
Note that the data shown in FIGS. 4 to 6 are stored in the storage unit 152 of the higher-level management device/target preparation time notification device 122, which will be described later.

Here, an example of calculating the target preparation time (FIG. 4 or FIG. 5) using FIG. 6 will be described, for example, when the order change pattern in FIG. 4 is a combination of "12" and "large transfer".
In the case of this order change pattern, based on the data shown in Figure 6, the printing plate is replaced once during the order change, and the printing plate is replaced once during the order change at 75 seconds, which is the "lot end/machine set time (plain color → plain color)". Since the mold is replaced with a feeding wooden mold, the time is 30 seconds which is the "machine set addition time (one color printing plate exchange)" and 150 seconds which is the "machine set addition time (large size ← → feed) time". The longer 150 seconds will be added. Furthermore, since the frame of the die cutter is closed after replacing the wooden mold, 40 seconds is the "additional sheet set time (considering frame closing)", 20 seconds is the "paper feeding preparation time", and 20 seconds is the "trial processing/inspection (plain)" time. 30 seconds is added. Furthermore, since two colors are printed in the subsequent order, 20 seconds, which is the "inspection addition (two colors) time", is added.
In addition, if the box making machine is equipped with an auto feeder and you use it, the values of "Sheet set addition" and "Sheet set addition (frame closing consideration) time" will be automatically set depending on the specifications of the auto feeder. is changed to a predetermined value.
Furthermore, as will be described later, in the first and second preparation stages, the "color change time" preset regarding the ink replacement time becomes longer than the sum of the first to third target preparation times set in advance. In this case, instead of the first to third target preparation times, the "color change time" shown in FIG. 6 is set as the target preparation time for the first to second preparation stages. Note that the "color change time" is changed depending on the specifications of the ink application mechanism.

Note that the data shown in FIG. 6 is based on input by workers to a predetermined panel when the number of workers in the actual first to third preparation stages increases or decreases from the basic three. It is automatically changed to increase or decrease by a predetermined value. In this embodiment, the data shown in FIG. 6 is corrected using a predetermined value stored in the storage unit 152 of the upper management device 122 of the box making machine, which will be described later, and based on such correction value, the data shown in FIG. Alternatively, the target preparation time as shown in FIG. 5 is corrected.
Note that each data shown in FIGS. 4 to 6 may be set according to the number of workers and stored in the storage unit 152 of the upper management device 122, which will be described later.

In addition, the settings for "machine set additional time", "sheet set additional time", "trial processing/inspection time (plain)", and "inspection additional time (printing/punching)" are set by the operator. It can be changed by inputting it into the panel.
As a result, for example, in the case of a new worker, the "additional machine setting time" and "additional sheet setting time" can be set to be longer, and changes can be made according to the skill level of the worker. In other words, in the case of a new worker, the actual work time during the preparation stage is too far from the target value of the work time of a skilled worker in each task, so in this embodiment, the actual work time is set to an appropriate target value. It can be done.
Furthermore, the set time can be changed depending on the work environment, such as setting a longer time if it takes time to prepare the items necessary for the work due to space constraints in the factory.
As a result, in this embodiment, it becomes possible to notify the target preparation time to be achieved more appropriately in accordance with the skill level of the worker and the actual situation of the factory.
For example, if strict quality standards are required for cardboard boxes, setting longer target preparation times for "trial processing/inspection time (plain)" and "additional inspection time (printing/punching)" will reduce the It becomes possible to notify the appropriate target preparation time to be achieved in accordance with the actual situation, which enables more careful trial processing and more time-consuming inspection work by the operator.

Next, according to FIGS. 7, 8A, 8B, and 9, each target preparation time of the target preparation time table for each order change pattern shown in FIG. 4 or 5 is set using the set time table for each task shown in FIG. The method will be explained in more detail. FIG. 7 is a conceptual diagram for explaining a method for setting target preparation times in the first to third preparation stages according to this embodiment, and FIGS. 8A and 8B are FIG. 9 is a conceptual diagram for explaining a method for setting a target preparation time in a preparation stage, and FIG. 9 is a conceptual diagram for explaining a method for setting a target preparation time in a third preparation stage according to the present embodiment.

First, as in the example shown in Fig. 7, the preparation time for printing plate replacement is The second target preparation time and the sixth target preparation time are set longer by the amount of preparation time required for color inspection. Specifically, the setting time for "machine set addition (one color replacement) time" in Figure 6 (30 seconds/see Figure 6) and the setting time for "inspection addition (one color) time" (10 seconds/see Figure 6). 6) are added respectively.
Based on the setting time determined in this way, the value of each target preparation time in the target preparation time table for each order change pattern shown in FIG. 4 or 5 is set as appropriate.

Next, FIG. 8A(a) shows an example of a case where either a printing plate or a wooden pattern is exchanged during an order change. For example, as shown in Fig. 8A(a), when only printing plates are replaced, the set time for "machine set addition (one color printing plate replacement) time" is set according to the number of times printing plates are replaced during order change. (30 seconds/see FIG. 6) is used as a reference for the second target preparation time, and the value of each target preparation time in the target preparation time table for each order change pattern in FIG. 4 or 5 is set as appropriate. In this case, the setting time regarding "machine set addition (wooden pattern) time" is not considered. In the case where only the wooden mold exchange is performed, the set time corresponding to the combination of wooden mold exchanges (see FIG. 6) is set as the set time for the machine set addition time (second target preparation time).

Next, FIG. 8A(b) shows an example in which both printing plates and wooden patterns are exchanged during an order change. In this case, following the pattern in Fig. 8A(a), calculate the "machine set addition (print plate exchange) time" and the "machine set addition (wooden pattern exchange) time" respectively, and then compare the two. The longer one is set as the "machine set additional time (second target preparation time)".
In other words, when both printing plates and wood molds are replaced, the preparatory work time for printing plate replacement and the preparatory work time for wood mold replacement are compared because multiple people are doing the preparation work in parallel (printing This is based on the basic concept of the present embodiment, which sets a target preparation time for more efficient work by performing plate exchange and wooden pattern exchange in parallel).
As mentioned above, as shown in Fig. 8A(b), the preparation time for replacing a printing mold after removing the feeding mold and attaching a large mold is longer than the preparation time for replacing a single color printing plate. It is obtained from actual measurements of the work of highly skilled workers. In this case, the set time for "machine set addition (large size ←→ feed) time" (150 seconds/see figure 6) is not used for "machine set addition (one color printing plate exchange) time" (30 seconds/see Figure 6). 6) is set as the standard for the second target preparation time. On the other hand, although not shown in the figure, if the preparation time for printing plate replacement is longer (for example, when replacing multiple printing plates such as three colors), the set time for printing plate replacement (Fig. 6) is longer than the second target preparation time. Set as a time standard.

Next, FIG. 8B(a) shows an example in which ink is replaced. In this case, the total time of "lot completion/machine set time (plain color to plain color)", "machine set addition time (print plate exchange/wooden pattern exchange) time", and "sheet set addition time", and "color The longer time is set as the time for the first and second preparation stages.
For example, if the preparation time for ink replacement is longer than the sum of other preparation times in the first and second preparation stages (such as the above-mentioned "lot end/machine set time (plain to plain)"), ink replacement The value of each target preparation time in the target preparation time table for each order change pattern in FIG. 4 or 5 is set as appropriate based on the set time of "color change time" in FIG. 6 related to exchange. That is, the reference of the target preparation time for the first and second preparation stages is the set time of the "color change time". In this case, the target preparation time set as shown in FIG. 4 or 5 includes the numerical value in which the first to third target preparation times are replaced with "color change time." On the other hand, if the preparation time for ink replacement is short, the setting time of "color change time" in FIG. 6 is not taken into consideration.
This comparison is made because it is assumed that when the lot end operation starts (paper feeding stops), the ink will be replaced at the same time as the box making machine's operating speed is reduced and the machine is set. be.

Next, FIG. 8B(b) shows an example in which a wooden mold is replaced during an order change and/or a printing plate is replaced during an order change in a box making machine in which the printing cylinder does not go up and down. In this case, after the change of the pattern or printing plate is completed, the slidable frame is closed for changing the pattern in the die cutter and/or the slidable frame is closed for changing the printing plate in the printing unit. Since this is necessary, the sheet setting time in consideration of the frame closing time is set as the third target preparation time.

Next, FIG. 9 shows an example in which printing and/or punching is performed in a subsequent order.
First, as shown in Figure 9(a), when printing only one color without punching in the subsequent order, the inspection additional time is set according to the number of colors used in the subsequent order (in this case , ``10 seconds, which is the set time for inspection addition (one color) time/see Figure 6), is used as the standard for the sixth target preparation time, and each target in the target preparation time table for each order change pattern in Figure 4 or Figure 5. The value of the preparation time is set appropriately.
Here, since the printing part of the cardboard box is inspected one color at a time, the longer the inspection time is set as the number of colors used in subsequent orders (the number of printing cylinders used for printing) increases ( (See Figure 6).
On the other hand, although not shown in the figure, when only punching is performed without printing in a subsequent order, the additional inspection time set according to the type of wooden pattern used in the subsequent order (Figure 6) is the sixth goal. This is the standard for preparation time.

Next, as shown in Figure 9(b), when both printing and punching are performed in a subsequent order, the total inspection time for the printed part of the cardboard box and the inspection time for the punched part of the cardboard box is required. The set time for "Inspection additional time (color printing, punching)" (in this case, 20 seconds, which is the set time for "Inspection additional time (2 colors)", and the set time for "Inspection additional time (large size punching)") 40 seconds, which is the total time with a certain 20 seconds), and use that set time as the standard for the sixth target preparation time, and set each target preparation time in the target preparation time table by order change pattern in Figure 4 or Figure 5. The value is set appropriately. This is because it is assumed that the inspection of the printed part and the punched part of the cardboard box are not carried out simultaneously, but are carried out one by one in sequence.

Next, with reference to FIGS. 10 to 16, a description will be given of the target preparation time notification device for the corrugated sheet box making machine according to this embodiment, the schematic configuration of the system, and the information handled. FIG. 10 is a block diagram showing a schematic configuration of the target preparation time notification device and its system according to the present embodiment, and FIG. 11 is a block diagram showing the basic information of the order used in the target preparation time notification device and its system according to the present embodiment. FIG. 12A and FIG. 12B are charts showing an example of a method for aggregating each required time in the target preparation time notification device according to the present embodiment, and FIG. 14 is a chart showing an example of information for specifying an order change pattern in the device; FIG. 14 is a chart showing an example of performance information for each order change pattern in the target preparation time notification device according to the present embodiment; FIG. 16 is a chart showing an example of analysis information for each work time in the target preparation time notification device and its system according to the present embodiment, and FIG. 3 is a chart showing an example of comparative information for each case.

First, as shown in FIG. 10, reference numeral 100 indicates a target preparation time notification device and its system for the box making machine 1 according to the present embodiment. A production control device 110 that is provided on the user side of the box making machine 1 (on the producer side that produces cardboard boxes with the box making machine), controls each machine of the box making machine 1, and performs production management of the box making machine 1. , a server device 112 that is provided on the manufacturer side (manufacturer side of the box making machine) and is equipped with a database (storage device) that communicates with the outside and stores predetermined data; and an analysis device that is connected to this server device 112. A device 114 is provided. Note that the server device 112 communicates with the outside through the Internet, a cloud service, an in-house LAN, or the like.

The production control device 110 is connected to the box making machine 1, and includes a lower management device 120 for controlling each machine of the box making machine 1 according to basic information for each order as shown in FIG. and an upper management device 122 for overall management. This upper management device 122 corresponds to the target preparation time notification device 122 of the corrugated sheet box making machine according to the embodiment of the present invention. In the following description, the upper management device 122 will be referred to as a target preparation time notification device 122. In this embodiment, the lower management device 120 is incorporated into the box making machine 1, and the target preparation time notification device 122 is provided separately from the box making machine 1.

Here, in this embodiment, as an example is shown in FIG. 11, the basic information is order information for producing cardboard boxes for each order with the box making machine 1, and this basic information (order information) includes information such as the product name and specifications of the cardboard box, as well as the printing unit used, the ink used, the wooden mold used, etc.

Next, the lower management device 120 of the production management device 110 according to this embodiment will be explained with reference to FIGS. 10 and 11.
The lower management device 120 according to the present embodiment is a device that controls the operation of each unit 2 to 6 and 8 of the box making machine 1 according to basic information for each order received from the target preparation time notification device (upper management device) 122. be. Therefore, as shown in FIG. 10, the lower management device 120 includes a control device 124 that controls each unit 2 to 6 and 8 of the box making machine 1, an operation panel 126 including various switches and a touch panel display, and a production A sheet number counting sensor 28 and a sheet presence/absence detection sensor 29 are connected.

Next, the lower management device 120 counts the number of pieces produced in real time based on the detection signal of the input/output unit 130 that transmits and receives data (information) to and from the target preparation time notification device 122 and the number of produced pieces counting sensor 28. A signal is sent to the control device 124 to control the operations of the production sheet counting section 132 and each of the units 2 to 6 and 8, such as operations necessary for transporting and processing the sheet S, positioning operations during order changes, etc., for each order. and each unit control section 134 that sends the information. The counting result by the production quantity counting section 132 is sent to the target preparation time notification device 122 in real time.
The lower management device 120 further includes a storage unit 136, which temporarily stores basic information for each order (FIG. 11) received from the target preparation time notification device 122 and the order order (FIG. 13) to be described later. At the same time, the counting result by the production number counting section 132 is temporarily stored. The storage unit 136 also stores data regarding the timing of transmitting and receiving the order change signal to and from the target preparation time notification device 122.

When the production of the current order is completed, the subordinate management device 120 sends an order change signal to the target preparation time notification device 122. When the target preparation time notification device 122 receives this order change signal, the target preparation time notification device 122 sends the basic information of the next order (see FIG. 11) to the subordinate management device 120, as described later. This order change signal is sent when the lot end switch is on and there are no more sheets S on the paper feed table 21, or when the order change switch is manually pressed.

Next, the target preparation time notification device/superior management device 122 of the production management device 110 according to this embodiment will be explained with reference to FIGS. 10 to 14.
The target preparation time notification device 122 according to the present embodiment is configured to display the target preparation time that is visible to the operator on the operation panel 126 of the lower-level management device and/or the target preparation time notification device 122 at the same time as the start of an order change. This is a device for causing the box making machine 1 to produce cardboard boxes for a large number of orders in a predetermined order.
Note that the operation panel 126 of the box making machine 1 and/or the operation panel 154 of the target preparation time notification device 122 also displays order information (FIG. 11) regarding the previous order and/or the order after the order change.

As shown in FIG. 10, the target preparation time notification device 122 includes an input/output unit 140 that transmits and receives data (information) between the lower management device 120 and the server device 112, and an input/output unit 140 that receives and receives order change signals from the lower management device 120. A signal acquisition unit 142 that acquires the counting result of the number of sheets in real time, a status identification unit 144 that identifies each state of operation/stop/preparation of the box making machine based on the signal acquired by this signal acquisition unit 142, and It includes a required time totaling unit 146 that totals in real time the duration of each operation/stop/preparation state identified by the identifying unit 144.

More specifically, the signal acquisition unit 142 acquires the order change signal, the counting result of the number of produced sheets, the main motor ON signal, and each machine set completion signal from the lower management device 120.
Here, the order change signal is sent when the lot end switch is on and there are no more corrugated sheets on the sheet feeding table, or when the order change switch is manually pressed.
In addition, the production number counting section 132 obtains the result of counting the number of produced products counted based on the detection signal of the production number counting sensor 28 .
The main motor on signal is sent when the worker manually turns on the main motor switch, and the machine set completion signal is a signal indicating the completion of each machine set in the first and second preparation stages. .

Here, when positioning is completed, a positioning completion signal is automatically output, and when the operator presses the printing plate replacement completion switch after replacing the printing plate, a printing plate replacement completion signal is output, and the operator When the mold exchange completion switch is pressed, a wooden mold exchange completion signal is output.
The positioning completion signal is issued when the positioning of the paper feeding device 2, printing device 3, creaser slotter 4, folder gluer 6, and counter ejector 8 is all completed.
If the box making machine 1 is equipped with a printing device in which the printing cylinder moves up and down, the lowering operation of the elevating unit is also included in the positioning items, so the operator presses the printing plate change completion switch and the elevating unit descends, then the printing starts. Device positioning is complete.
On the other hand, if the box-making machine 1 is a die cutter or a type equipped with a printing device in which the printing cylinder does not move up and down, the positioning of the printing device 3 and the die cutter 5 is completed regardless of the progress of the printing plate or wooden mold replacement work.

In addition, the state specifying unit 144 determines “operating time,” “stopping time,” and “preparation time (first to third preparation stages) based on the order change signal and the result of counting the number of produced sheets, which are acquired by the signal acquisition unit 142. )", which state the box making machine 1 is in is specified, and the required time totaling unit 146 totals the required time for each state.
Further, the status identifying unit 144 identifies completed machine sets (positioning, printing plate exchange, wooden mold exchange) based on each machine set completion signal acquired by the signal acquisition unit 142.
Further, the state specifying section 144 specifies the state of the sheet feeding preparation operation and the trial processing/inspection operation based on the main motor ON signal and the result of counting the number of sheets produced, which are acquired by the signal acquisition section 142.

Here, calculation of the driving time by the state specifying unit 144 and the required time totaling unit 146 is performed under conditions as shown in FIGS. 12A and 12B, although detailed explanation will be omitted.
For example, in FIG. 12A, the state specifying unit 144 sets the time when the order change signal is received as the start of the preparation time. The end of this preparation time is the same time as the start of the operation time described above. Note that the time when the operator operates the paper feed stop switch may be the end of the operating time and the start of the preparation time.
Furthermore, the start point of aggregation of the preparation time can be considered to be the same point in time as the point in time when the lot finishing operation of the machine starts (the point in time when paper feeding is stopped).
Note that the paper feed start switch ON signal, main motor switch ON signal, single sheet feed switch ON signal, printing plate exchange completion switch ON signal, and wood pattern exchange completion switch ON signal are sent when the operator operates the switch. .

Further, the required time totaling unit 146 totals the duration of the “preparation state/entire first to third preparation stages” specified by the state specifying unit 144.
Further, in parallel with such aggregation of the preparation time, the required time aggregation unit 146 calculates the "positioning completion time" and "printing plate time", which are the times from the start of the preparation state until the completion of each machine set. "Replacement completion time" and "Wood pattern replacement completion time" are totaled.
In addition to counting the preparation time, the required time aggregation unit 146 also calculates the "paper feeding preparation time", which is the time during which the paper feeding preparation operation continued, and the "trial processing time", which is the time during which the trial processing/inspection operation continued.・Inspection time".

Next, as shown in FIG. 10, the target preparation time notification device 122 includes an order change pattern identification section 156, a target preparation time calculation section 157, and a notification command section 158.
Here, information for specifying an order change pattern as shown in FIG. 13 is stored in a storage unit (database) 152, which will be described later.
The order change pattern specifying unit 156 determines a predetermined order change (for example, between "2" and "3" in the production order in FIG. 13) based on the stored information for specifying the order change pattern. The printing unit and ink to be used for each of the previous order (the order in the production order "2" in FIG. 13) and the subsequent order (the order in the production order "3" in FIG. 13) of the order change/preparation stage) Based on the information on the wooden pattern to be used, the work required at the time of order change is specified, and the order change pattern representing the work content is specified. A specific method for identifying this order change pattern will be described later (see FIGS. 18, 19, 20A, and 20B). The specification of this order change pattern includes the specification of the printing pattern shown in FIGS. 4 and 5, and the specification of the wooden pattern.

Next, the target preparation time calculation unit 157 determines the target preparation time for efficiently accomplishing the work in the first to third preparation stages (FIG. 3) based on the order change pattern identified by the order change pattern identification unit 156. Calculate.
Here, the storage unit 152 stores a "target preparation time table for each order change pattern" as shown in FIG. 4 or FIG. data is stored.
The target preparation time calculating section 157 calculates the target preparation time based on the order change pattern specified by the order change pattern specifying section 156, with reference to data as shown in FIG. 4 or 5 stored in the storage section 152. do. For example, referring to FIG. 4, if the printing pattern specified by the order change pattern specifying unit 156 is "11" and the wood pattern is "large feed", the target preparation time is 325 seconds. Set.

Next, while the status specifying unit 144 specifies that the box making machine 1 is in the preparation state, the notification command unit 158 displays the target on the display of the operation panel 154 (and/or the operation panel 126 of the lower-level management device 120). The target preparation time calculated by the preparation time calculation unit 157 is displayed (not shown).
The display of the target preparation time on this display starts at the beginning of the preparation phase (see Figure 3), and then, as each task in the actual preparation phase (preparation time) progresses, the calculated target preparation time increases. is subtracted and displayed as the remaining time until the target preparation time (countdown display/remaining time display), and after the actual preparation time reaches the target preparation time and the remaining time becomes 0, the target preparation time is Displays the time that exceeds the time as a minus display (overtime display/excess time display).
As a modification, the target preparation time may be displayed before the order change starts. For example, by displaying the target preparation time for the order change to be performed after the order production is completed during order production before the order change, the operator can grasp the target preparation time in advance.

Next, as shown in FIG. 10, the target preparation time notification device 122 includes a performance information generation section/information transmission command section 148, a production management section 150, and a storage section (database) 152.
First, the track record information generation unit/information transmission command unit 148 generates track record information as shown in FIG. At the same time, the generated performance information is stored in the storage unit.
As shown in FIG. 14, the performance information is the performance information of each executed order change, and includes the order change pattern, the total actual value of preparation time due to the work of actual workers, and each result of the breakdown. Includes time (preparation time, positioning completion time, printing plate replacement completion time, wood pattern replacement completion time, paper feeding preparation time, trial processing/inspection time).
The stored performance information is sent to the server device 112 via the input/output unit 140 at a predetermined timing.

Next, when the production management unit 150 receives the order change signal from the lower management device 120, the production management unit 150 generates a production management plan that is stored in the storage unit 152 and includes information for specifying an order change pattern as shown in FIG. The basic information of the next order (see FIG. 11) is read from , and the read basic information of the next order is sent to the lower management device 120.

Next, the storage unit 152 stores production management plan data including basic information (FIG. 11) for each order. The storage unit 152 also stores a “target preparation time table for each order change pattern” as shown in FIG. 4 or 5, a “set time table for each task” as shown in FIG. Stores performance information, etc.

The target preparation time notification device 122 also includes an operation panel 154 that includes a keyboard and a touch panel display.
As described above, the target preparation time is displayed on the display of the operation panel 154 in response to a command from the notification command unit 158.
Further, by operating the keyboard, touch panel, etc. of the operation panel 154, the worker can change the set time of the "set time table for each task" as shown in FIG. Furthermore, by inputting the number of people working at the preparation stage, the worker can change the set time in the "set timetable for each task" as described above. Furthermore, the operator can use the operation panel 154 to perform production management of orders, such as changing the order of orders, adding or deleting orders, and changing basic production information for each order.

Next, the target preparation time notification device and the analysis device 114 of the system according to this embodiment will be explained.
The analysis device 114 according to the present embodiment receives various information (data such as work timetables as shown in FIGS. 4 to 6, basic information as shown in FIG. 11, and data as shown in FIG. 13) via the server device 112. an input/output unit 160 for inputting/outputting information for specifying order change patterns, track record information as shown in FIG. 14), and an information acquisition unit 162 for acquiring various information via this input/output unit 160 , an analysis information generation section 172 that analyzes performance information regarding the preparation time by actual workers, a comparison information generation section 174 that compares the performance information with the target preparation time and generates predetermined comparison information, and an information transmission command section. 176, and a storage unit (database) 178 that stores performance information, analysis information, and the like.

First, in the analysis device 114, the information acquisition unit 162 acquires performance information as shown in FIG. 14, and the analysis information generation unit 172 generates analysis information as shown in FIG. 15 based on the performance information. . This analysis information is mainly data obtained by converting the actual time for each order change pattern included in the actual performance information into the actual time corresponding to the "set time table for each job" (FIG. 6).
More specifically, Figure 15 shows the "target preparation time (by work)" subdivided by each work in the "set time table for each work" (Fig. 6), as well as the actual results for comparison with the target numerical data. As data, "actual time (by order change pattern)" corresponding to each task in the "set time table by task" (FIG. 6) is shown. Here, in this embodiment, the "target preparation time (by work)" is based on the set time of each work in FIG. , means the target preparation time for each task, which is obtained by subdividing the finally determined target preparation time (FIG. 4 or 5) by task.

Note that the conversion to obtain the actual time corresponding to the "set timetable for each task" from each actual time is performed using the calculation formulas listed in (1) to (11) below. Here, in each calculation formula, the left side indicates the actual time corresponding to the "set time table for each task", and the right side indicates each actual time based on the aggregated results of the required time aggregating unit 146 as shown in FIG. 14. .

(1) Lot completion/machine set time (plain color → plain color) time = positioning completion time when printing plate or wood pattern is not replaced at order change (2) Additional machine setting time (print plate replacement) = printing cylinder Positioning completion time when changing printing plates at the time of order change for a type that moves up and down - (average value of past analysis information) lot completion time and machine setting time (plain to plain) time (Additional machine setting time (printing plate) (replacement) includes the lowering time of the lifting unit.)
(3) Added machine set time (print plate replacement) = Time to complete printing plate replacement when printing plates are replaced at the time of order change in a type where the printing cylinder does not go up and down - (average value of past analysis information) lot end/machine Set time (plain to plain) time (4) Machine set additional time (wooden pattern exchange) = Wooden pattern exchange completion time when wood pattern exchange is performed at order change - (average value of past analysis information) Lot end/ Machine set time (plain to plain)
(5) Color change time is not counted.
(6) Added sheet set time = Preparation time - Longest time of positioning completion time, printing plate replacement completion time, wooden pattern replacement completion time - Paper feeding preparation time - Trial processing/inspection time (7) Paper feeding preparation time = Paper feeding preparation time (8) Trial processing/inspection time (plain color) = Trial processing/inspection time when printing plates or wood molds are not replaced at order change (9) Inspection additional time (color) = After order change Trial processing/inspection time when printing on a later order - Trial processing/inspection time (of average value of past analysis information) (plain)
(10) Inspection additional time (punching) = Trial machining/inspection time when only punching is performed in the subsequent order after an order change - (average value of past analysis information) Trial machining/inspection (plain)
(11) Inspection additional time (punching) = Trial processing/inspection time when both printing and punching are performed on an order immediately after an order change - Trial processing/inspection time (of the average value of past analysis information) (plain) - Inspection addition time (of average value of past analysis information) (color)

In the analysis device 114, a comparison information generation unit 174 further generates comparison information as shown in FIG. FIG. 16 shows the "target preparation time (by work)" similar to FIG. 15, and also shows the average value of the actual time for each predetermined month as an example of actual performance data for comparison with the target numerical data. The comparison information generation unit 174 calculates the average of each analyzed performance time based on one month's worth of analysis information. Then, the comparison information generation unit 174 generates comparison information (FIG. 16) that allows comparison of the monthly actual average time and each target preparation time in the "set time table for each task". By viewing the comparison information sent via the server device 112, the user (operator) of the box making machine can understand which work at the time of order change is taking longer than the set time. It becomes easier to understand the work that needs to be improved.

Next, with reference to FIGS. 17A and 17B, a description will be given of the control contents executed by the target preparation time notification device (upper management device) of the corrugated sheet box making machine according to the embodiment of the present invention.
FIGS. 17A and 17B are flowcharts showing control details executed by the target preparation time notification device of this embodiment. S indicates each processing step.
First, in S1 (FIG. 17A), when the power of the box making machine is turned on at the beginning of a production day at the factory, the signal acquisition unit 142 receives an order change signal or counts the number of sheets produced during one order cycle. Get results. Next, in S2, it is determined whether or not an order change signal has been acquired, and if so, the process proceeds to S3, where the production management section 150 sends the basic information of the next order to the lower level management device 120.
Next, in S4, based on the receipt of the order change signal (S1), the state identifying unit 144 identifies that the box making machine 1 is at the start of the preparation state (preparation time), and then in S5 , the required time aggregation unit 146 starts aggregating the preparation time and stores it in the storage unit 152.

Next, in S6, the order change pattern specifying unit 156 specifies an order change pattern based on the basic information (order information) of the order before and after the order change that is currently in the preparation state. The specific flow for specifying the order change pattern in S6 will be described later using FIGS. 18, 19, 20A, and 20B.

Next, in S7, the target preparation time calculation unit 157 refers to the “target preparation time table by order change pattern” (FIG. 4 or 5) stored in the storage unit 152, and calculates the order change specified in S6. The target preparation time is calculated based on the pattern (print pattern and wooden pattern).

Next, in S8, the notification command section 158 displays the target preparation time calculated by the target preparation time calculation section 157 in S7 on the display of the operation panel 154. The display contents are a countdown display and an over display, which are the functions of the notification command section 158 described above.

Next, in S9, the required time totaling unit 146 starts counting the time required to complete each machine set (positioning, printing plate exchange, wood pattern exchange), and then, in S10, the signal acquisition unit 142 , obtain each machine set completion signal (positioning completion signal, printing plate exchange completion signal, wood pattern exchange completion signal). Next, in S11, the state identification unit 144 identifies the completed machine set based on the machine set completion signal acquired by the signal acquisition unit 142, and then in S12, the required time totaling unit 146 identifies the completed machine set. The time totaling for the machine set is completed, and the total time is stored in the storage unit 152.
If a plurality of printing plates are exchanged during the order change, it is determined that the printing plate exchange is completed when the last printing plate exchange completion signal is obtained in S10 and S11.

Next, the process proceeds to S13, where it is determined whether the machine setting and sheet setting have been completed and the operator has turned on the main motor switch, that is, whether the first and second preparation stages have been completed. This determination is made based on whether the signal acquisition unit 142 has acquired the main motor ON signal. The processes of S10 to S12 are repeated until it is determined in S13 that the first and second preparation stages are completed.

If it is determined in S13 that the first and second preparation stages have been completed, the process advances to S14 (FIG. 17B). In S14, based on the reception of the main motor ON signal, the state specifying unit 144 specifies that the paper feeding preparation time has started, and the required time totaling unit 146 starts counting the paper feeding preparation time.
Then, when the operator operates the single-sheet paper feed switch and performs trial processing, the signal acquisition unit 142 acquires the result of counting the number of produced sheets in S15, and then in S16, the state identification unit 144 Based on the receipt of the production sheet count result, it is determined that the paper feeding preparation time has ended, and the required time totaling unit 146 finishes counting the paper feeding preparation time, and stores the total paper feeding preparation time in the storage unit 152. be remembered.

Next, the process proceeds to S17, in which the production sheet counting sensor 28 (FIG. 1) determines whether or not two or more sheets S fed out one by one from the sheet feeding device 2 have been counted in four seconds.
If two or more sheets S are not counted in 4 seconds, the process proceeds to S18, where the status identification unit 144 identifies that the trial processing/inspection time has started, and the required time totaling unit 146 totalizes the trial processing/inspection time. Start. Then, when the operator operates the single sheet feed switch or the sheet feed start switch again, the signal acquisition unit 142 acquires the production sheet count result in S19. Next, in S20, the process of S19 is repeated until two or more sheets S are counted in four seconds, and when two or more sheets S are counted in four seconds (YES in S20), the state identification unit 144 , to identify that the ready state has ended.

Next, the process proceeds to S21, where the required time totaling unit 146 finishes counting the time for trial processing and inspection, and the totaled time is stored in the storage unit 152. Next, in S22, the first to third preparations are completed. Assuming that the stage has ended, the required time totaling unit 146 ends the totaling of the preparation time. At this time, the storage unit 152 stores each preparation time of the first to third preparation stages.

Next, the process proceeds to S23, and upon completion of the first to third preparation stages, the notification command unit 158 stops the notification (countdown display, over display) to the worker that was started in S8, and then, In S24, based on the fact that two or more sheets S are counted in 4 seconds, the state specifying unit 144 specifies that the box making machine 1 is in the operating time state, and returns to S1 (FIG. 17A).

On the other hand, in S2, if the order change signal is not acquired (S1), but the counting result of the number of produced sheets is acquired (NO in S2), the process proceeds to S25, and as in S17, the number of sheets S is 2 or more in 4 seconds. Determine whether or not it has been counted. In S25, if it is determined that two or more sheets S are not counted in 4 seconds, the process proceeds to S26, where the state identification unit 144 identifies that the operation of the box making machine 1 is in the stop time state. Next, in S27, it is determined whether the day's production has ended, such as by turning off the power switch of the target preparation time notification device/superior management device 122.

In S27, if the day's production can be considered to have ended, such as when the power switch is turned off, the process proceeds to S28, where the information transmission command unit 148 records the results of a predetermined number of order changes for which production has ended. The information is read from the storage unit 152 and sent to the server device 112.
On the other hand, if it is determined in S27 that one day's production is not deemed to have ended, the process returns to S1 and the above-described process is repeated.

On the other hand, when the box making machine is in continuous paper feeding mode, no order change signal is received in S1, so the processes of S1, S2, S25 in FIG. 17A and S24 in FIG. 17B are repeated. .
Furthermore, when the last sheet of the current order is fed and continuous sheet feeding is stopped, a new order change signal is sent from the subordinate management device 120 in order to execute the next order. is executed again.

Next, with reference to FIGS. 18, 19, 20A, and 20B, the contents of the process for identifying an order change pattern executed in S6 of FIG. 17A by the order change pattern identifying unit 156 will be described. FIG. 18 is a flowchart showing the first control content executed by the order change pattern specifying unit of the target preparation time notification device of this embodiment, and FIG. 20A and 20B are flowcharts showing the second control content executed by the pattern specifying unit, and FIGS. 20A and 20B show the third control content executed by the order change pattern specifying unit of the target preparation time notification device of this embodiment. FIG. S indicates each processing step.

First, with reference to FIG. 18, a method for specifying a printing pattern (first control content) in a case where the box making machine is equipped with a printing device in which a printing plate cylinder moves up and down will be explained.
First, in S1, the order change pattern identifying unit 156 sets the printing unit identification number X=1 and starts identifying the work of the first color printing unit.
Next, in S2, it is determined whether the first color printing unit will be used for printing in a subsequent order. If it is not to be used in a later order (NO in S2), proceed to S3. In this case, since there is no need to replace the printing plate, the printing pattern of the order change pattern (hereinafter referred to as the "printing pattern") is specified as "00" (the definition of each numerical value of "■□" in the printing pattern is , see Figure 4). If the printing cylinder is of the type that moves up and down, and there are units that are not used for printing, the most efficient method is to leave the printing plate of the previous order attached during the order change, and then proceed with the production of the subsequent order. This is a state in which the printing cylinder is fixed in the raised position and the printing plate is replaced, so that there is no need to replace the printing plate during the order change, and this embodiment is based on this condition.

On the other hand, if the first color printing unit is to be used in a subsequent order (YES in S2), the process proceeds to S4, where it is determined whether the previous order was an order that uses the first color printing unit. If the previous order is an order that does not use the first color printing unit (NO in S4), the process advances to S5. In this case, since the printing plate can be replaced during production of the previous order, the printing pattern is specified as "01". That is, since cylinders that are not used for printing are fixed in a raised position, an operator can replace printing plates even during production. This allows you to set a target preparation time for more efficient work.

On the other hand, if the first color printing unit is to be used in the previous order (YES in S4), the process proceeds to S6, where it is determined whether the type of ink used in the first color printing unit is the same in the previous order and the subsequent order. That is, it is determined whether or not the same ink is to be used continuously in the first color printing unit in the previous and subsequent orders.
If the types of ink are different between the previous and subsequent orders (NO in S6), the process proceeds to S7, and since printing plates and inks are exchanged during the order change, the printing pattern is specified as "11 color change".
On the other hand, if the type of ink is the same in the previous and previous orders (YES in S6), the process advances to S8, and in this case, since only the printing plate is replaced during the order change, the printing pattern is specified as "11".

Since the printing pattern is specified in the above processing of S2 to S8, in S9, the printing patterns of the printing units (X is plural) that have been specified so far are added up. For example, if the box making machine is equipped with up to the fourth color printing unit (X is 4 at most), the printing patterns specified for X = 1 to 4 are, for example, "00" (first color), "11 In the case of "color change" (second color), "01" (third color), and "11" (fourth color), the print pattern becomes "23 color change" as a total.

Next, the process proceeds to S10, and it is determined whether the printing unit identification number X is the same as the number of printing units of the box making machine. That is, in S10, such a determination is performed in order to specify a printing pattern that takes into account all the printing units of the box making machine 1.
In S10, if the printing unit identification number X is less than the number of printing units of the box making machine, the process proceeds to S11 and the identification number is set to the previous identification number plus 1. For example, if the box making machine is equipped with up to the fourth color printing unit, in the above explanation, the printing pattern is specified only up to the first color printing unit, so in this case, the process from S11 and S2 onwards specifies the second color printing pattern. Proceed with identifying the printing pattern of the printing unit. Note that the number of printing units (generally 2 to 4) included in the box making machine is stored in advance in the storage section.
Thereafter, in S10, until it is determined that the printing unit identification number Repeat the summation of the pattern.
If it is determined in S10 that the printing unit identification number X is the same as the number of printing units of the box making machine, then in S9 the summed printing pattern is specified as the printing pattern of the final order change pattern.

To explain some examples when the number of printing units is 2, if the printing pattern of the first color is "01" and the printing pattern of the second color is "11", the total printing pattern is "12" (order change The printing plate will be replaced once during the printing process, and 2-color printing will be performed on subsequent orders). In addition, if the printing pattern for the first color is "01" and the printing pattern for the second color is "11 color change", the total printing pattern is "12 color change" (one plate change during order change, one printing plate change during order change, (2-color printing, ink change required during order change).

Next, with reference to FIG. 19, a method for specifying a printing pattern (second control content) in a case where the box making machine is equipped with a printing device in which the printing plate cylinder does not move up and down will be explained.
Note that, depending on the type of printing plate cylinder, the order change pattern specifying unit 156 executes either the above-described first control content or this second control content.

First, in S1, the order change pattern identifying unit 156 sets the printing unit identification number X=1 and starts identifying the work of the first color printing unit.
Next, in S2, it is determined whether the first color printing unit will be used for printing in a subsequent order. If it is not used in the subsequent order (NO in S2), the process proceeds to S3, where it is determined whether the previous order was an order that uses the first color printing unit.
If the previous order was an order to use the first color printing unit (YES in S3), proceed to S4, and in this case, in the first color printing unit, during the order change, the first color printing plate is replaced with a feeding plate. Since this is necessary, the print pattern is specified as "10" (see FIG. 5 for the definition of each numerical value of "■□" in the print pattern). That is, as described above, in this embodiment, since the feeding plate is considered to be included in the printing plate, the number of printing plate exchanges during an order change is 1.
On the other hand, if the previous order is an order that does not use the first color printing unit (NO in S3 and a feeding plate is used), the process proceeds to S5, where the feeding plate can be used continuously in the previous and previous orders, and replacement work is performed. Since this becomes unnecessary, the print pattern is specified as "00".

Next, in S2, if it is determined that the first color printing unit will be used in the subsequent order (YES in S2), the process proceeds to S6, and it is determined whether the previous order was an order that uses the first color printing unit. If it is determined that the print pattern will not be used in the previous order (NO in S6), the process proceeds to S7, where the printing pattern is specified as "11" since it is necessary to replace the feeding plate with a printing plate during the order change.

In S6, if it is determined that the previous order is an order that uses the first color printing unit (YES in S6), the process proceeds to S8, and it is determined whether or not the same ink is to be used continuously in the first color printing unit in the previous and previous orders. do.
If the types of ink are different between the previous and previous orders (NO at S8), proceed to S9, and change the printing pattern from one printing plate to another during the order change, as well as ink replacement. ”.
On the other hand, if the type of ink is the same in the previous and previous orders (YES in S8), the process advances to S10, and in this case, the printing plate is changed from printing plate to printing plate during the order change, and the ink is not changed, so the printing pattern is changed to " 11”.

Since the printing pattern is specified in the above processing of S2 to S10, in S11, the printing patterns of the printing units (where X is plural) that have been specified so far are added up.
Next, the process proceeds to S12, and it is determined whether or not the printing unit identification number X is the same as the number of printing units of the box making machine. In S12, if the printing unit identification number , proceed to S13, and set the identification number to the previous identification number plus 1.
For example, if the box making machine is equipped with up to the fourth color printing unit, in the above description, the printing pattern is specified only up to the first color printing unit, so in this case, the process advances to S13. Thereafter, until it is determined in S12 that the printing unit identification number Repeat the summation of the pattern.
If it is determined in S13 that the printing unit identification number X is the same as the number of printing units of the box making machine, the printing pattern added up in S11 is specified as the printing pattern of the final order change pattern.

Next, with reference to FIGS. 20A and 20B, a method for specifying a pattern pattern (third control content) in exchanging a die cutter pattern will be described.
Note that this third control content is not executed if the box making machine 1 is not equipped with the die cutter 5.

First, in S1 (FIG. 20A), the order change pattern specifying unit 156 determines whether a die cutter is used for punching (hereinafter referred to as "processing") for at least one of the previous and next orders.
If the die cutter is not used for processing for both the front and rear orders (NO in S1), proceed to S2, and the feed mold can be used continuously for the front and rear orders, eliminating the need for replacement work. (referred to as "wooden pattern") is specified as "feeding" (see Figures 4 and 5 for the definitions of "feeding", "large", and "small" of "■□" in the wooden pattern). ). In the case of a wooden pattern, once the wooden pattern is specified in S2, S5, S6, S9, S10, S13, S14, S16, or S17, the processing ends.

On the other hand, if the die cutter is to be used for machining either the previous order or the previous order (YES in S1), the process proceeds to S3, and it is determined whether the die cutter is to be used for machining the subsequent order. If the die cutter will not be used for processing in the subsequent order (NO in S3), proceed to S4. In this case, the die cutter will be used for processing only in the previous order, so check whether the previous order uses a large wooden mold or not. judge.
If a large wooden pattern is to be used in the previous order (YES at S4), the process proceeds to S5 and the wooden pattern is specified as "large delivery".
On the other hand, if the previous order does not use a large pattern (NO in S4), the process proceeds to S6. Identify.

If it is determined in S3 that the die cutter is to be used for processing in the subsequent order (YES in S3), the process proceeds to S7 (FIG. 20B), and it is determined whether the die cutter is to be used in processing in the previous order as well.
If the die cutter is not used for processing in the previous order (NO in S7), proceed to S8, and in this case, the die cutter will be used for processing only in the subsequent order, so it is determined whether or not to use the large wooden pattern in the subsequent order. do.
If a large wooden pattern is to be used in the subsequent order (YES at S8), the process proceeds to S9, and the wooden pattern is specified as "large size".
On the other hand, if a large wooden mold is not to be used in the subsequent order (NO in S8), the process proceeds to S10, and in this case, a small wooden mold will be used in the subsequent order, so the order change pattern is specified as "Send small". .

In S7, if it is determined that the die cutter will be used for processing in the previous order as well (YES in S7), the process proceeds to S11. Determine whether to use it.
If a large wooden mold is not used in the subsequent order (NO in S11), a small wooden mold will be used in the subsequent order, so the process advances to S12 and it is determined whether or not a large wooden mold is to be used in the previous order. If a large wooden pattern is to be used in the previous order (YES at S12), the process proceeds to S13, where the wooden pattern is specified as "large and small."
On the other hand, if a large wooden pattern is not used in the previous order (S12), the process proceeds to S14 and the wooden pattern is specified as "small and small."

If it is determined in S11 that a large wooden mold is to be used in the subsequent order (YES in S11), the process proceeds to S15, and it is determined whether or not a large wooden mold is to be used in the previous order.
If a large wooden pattern is to be used in the previous order (YES at S15), the process proceeds to S16 and the wooden pattern is specified as "large and large."
On the other hand, if a large mold is not used in the previous order (NO in S15), the process proceeds to S17, and in this case, since a small mold will be used in the previous order, the order change pattern is specified as "small-large". .

Next, a modification of the target preparation time notification device for the corrugated sheet box making machine according to the embodiment of the present invention described above will be described mainly with reference to FIGS. 21 and 22. FIG. 21 is a chart similar to FIG. 6 showing set time data for each task, which is a standard for determining target preparation time data for each order change pattern according to a modified example of the embodiment of the present invention, and FIG. It is a conceptual diagram for demonstrating the setting method of the target preparation time in the 3rd preparation stage by the modification of embodiment of this invention shown similarly. In the following, basically the differences from the above-described embodiment will be explained.

In the modified example of this embodiment, as described above, the order change pattern specifying unit 156 (FIG. 10) specifies the order change pattern.
Furthermore, in this modification, the order change pattern identifying unit 156 stores the product name code (see FIG. 11) included in the basic information of the subsequent order in the storage unit 152 (FIG. 10) for the subsequent order after the order change. The product name code in the order information (basic information as shown in Figure 6) is checked against the product name code, and then the order is determined to be either a "repeat order" that has been produced in the past, or a "new order" that has not been produced in the past. ”. Note that the product name code is a code that indicates the specifications of the cardboard box, and the same product name code is used for the specifications of the same cardboard box.
In this modification, the storage unit 152 described above stores basic information (order information) of orders produced in the past, as well as information about when the cardboard boxes of those orders have passed inspection and have been produced in good quality. The final adjustment position of each movable member of the box making machine is memorized.

Next, a modified example of the work-specific time table will be described with reference to FIG. 21.
Next, the data of the set time table for each work according to the present modification shown in FIG. 21 differs from FIG. 6 in the above-described embodiment in that the subsequent order after the order change is a repeat order that has been produced in the past, or This is data for distinguishing whether it is a new order that has not been produced in the past and setting each setting time that serves as a reference.
As shown in FIG. 21, in this modification, in contrast to FIG. 6, the work items are "trial processing/inspection time (plain color/new order)" and "inspection additional time (color printing/punching/new order)". ' has been added.
In this modification as well, similarly to the embodiment described above, the value of each target preparation time in the target preparation time table for each order change pattern in FIG. 4 or 5 is set as appropriate based on each set time in FIG. 21. Ru.

First, the setting time for the work item "trial processing/inspection time (plain)" will be explained. Note that the item "trial processing/inspection time (plain)" itself also exists in FIG.
In this modification, the setting time of this "trial processing/inspection time (plain)" is such that if the subsequent order after an order change is a repeat order, the product will pass the inspection once, and the machine adjustment and second trial will be required. This is a set time assuming that no processing will be performed. This means that in the case of repeat orders, each movable member of the box making machine is automatically positioned at the same adjustment position as when producing good products in the past order (orders before the previous order) (the same position is not reproduced). This is because it is thought that good products can be produced without adjusting each movable member.

Here, in this modification, the adjusted position information of each movable member when a non-defective item was produced is stored in the storage unit 152 in association with the past order. More specifically, in the past order, it is assumed that during the inspection work by the worker, the position of each movable member of the box making machine will be finely adjusted and trial processing will be performed until the cardboard box passes the inspection. ing. Then, as a result of the fine adjustment, the adjusted position information of each movable member is stored in the storage unit 152 when the inspection is passed and the production operation of the cardboard box is executed.

Then, in the case of a repeat order, the automatic positioning of each movable member of the box making machine at the "lot end/machine set time (plain to plain)" in the preparation stage described above is performed according to the final position of each movable member stored in the storage unit 152. This is done by referring to location information and reproducing the same condition as when the good product was produced.
On the other hand, in the case of a new order, automatic positioning of each movable member is performed based on the basic setting value/initial setting value of each order stored in the storage section 152.
Here, even if the data in the storage unit 152 to be referred to is different, the automatic positioning of each movable member is performed in approximately the same time in the automatic adjustment to the final adjustment position and the basic setting value. Therefore, in this modification, the setting time (75 seconds) of "lot end/machine set (plain color→plain color) time" shown in FIG. 21 is set to be a common value for repeat orders and new orders.

Next, the setting time of the work item "trial processing/inspection time (plain color/new order)" will be explained.
In this modification, as shown in FIG. 21, a setting time for "trial processing/inspection time (plain color/new order)" is added to the above-described embodiment. This is because, in this modification, if the order after the order change is a new order, it is assumed that after the first inspection, fine adjustment of the machine and second trial processing will be performed.

For example, in the case of a new order, the movable parts of the box making machine are positioned at the initial position, but if a single sheet is fed in the initial position, it will often fail the inspection, and the operator will It is thought that the machine will be adjusted and a second trial processing will be carried out to correct any defects found during inspection. Specifically, defects in the cardboard box include misalignment of the slotter groove and misalignment of the folding position.
Fine adjustments to the machine to eliminate this problem include adjusting the feed roll gap and slotter knife position to correct the positional deviation of the slotter groove, and adjust the position of the folding bar of the folder gluer to correct the bending position deviation. Make adjustments, etc.
In this way, the set time (fifth target preparation time) for "trial machining/inspection time (plain color/new order)" in this modification example is the same as the above-mentioned time for fine adjustment of the machine and second trial machining. It is assumed that the preparation time will be longer than the "trial processing/inspection time (plain)" in the embodiment described above.

Next, the setting time of the work item "inspection additional time (color printing/new order)" and the setting time of "inspection additional time (punching/new order)" will be explained.
In this modification, as shown in FIG. 21, in addition to the above-described embodiment, "inspection additional time (color printing/new order)" is set according to the number of colors, and "inspection additional time (new order)" is set according to the type of wood pattern. A setting time has been added for "Punching/New Order)".

Here, the "inspection addition (printing/punching) time" similar to the above-described embodiment is based on the assumption that the subsequent order after the order change is a repeat order and that printing and punching processing will be performed in this modification. In this case, this is the time difference between the time from feeding one sheet until inspection is completed and production of subsequent orders starts, and the "trial processing/inspection (plain) time". As mentioned above, this assumes that for repeat orders, the optimal positioning of each movable part is carried out, the product passes the inspection once, and there is no need to adjust the machine or perform a second trial process. are doing.

Next, the "inspection addition time (printing/punching/new order)" is calculated based on the assumption that the subsequent order after the order change is a new order, and that printing and punching processing will be performed. This is the time difference between the time from when the inspection is completed until the production of the subsequent order starts, and the "trial processing/inspection (plain color/new order) time". This assumes that after one inspection, the machine will be fine-tuned and a second trial process will be performed. Specifically, in addition to the positional deviation of the slotter groove and the bending position, the defects include printing positional deviation, punching positional deviation, and the like.
Fine adjustment of the machine to eliminate this problem is as described above for the positional deviation of the slotter groove and the bending positional deviation. Furthermore, as fine adjustments to the machine, the position of the printing cylinder is adjusted for misalignment of the printing position, and the position of the die cylinder is adjusted for the misalignment of the punching position.

Next, a further modification regarding the setting time will be explained.
Here, if there is printing or punching, the number of machine adjustments will increase compared to when printing or punching. That is, for example, in addition to adjusting the feed roll and slotter, it is necessary to adjust the print cylinder and die cylinder. Therefore, it is thought that the time required for adjusting the machine increases accordingly. However, in this modification, the time required for adjusting the printing cylinder and die cylinder is considered to be minute, and the time required for adjusting the machine is considered to be the same in the case of plain color and the case of printing or punching. In the case of this modification, the "inspection additional time (printing/punching/new order)" is considered to be substantially the same as the "inspection additional time (printing/punching)" and can be omitted. The set time table for each task shown in FIG. 21 is simple.

Next, a method for setting the target preparation time in the third preparation stage according to a modification of the embodiment of the present invention will be described with reference to FIG. 22.
First, as shown in FIG. 22(a), if the subsequent order is a repeat order, the time of the third preparation stage is divided into the "paper feeding preparation period", the "trial processing/inspection time (plain)", It is calculated as the total time obtained by adding each setting time (see FIG. 21) of "inspection additional time (printing/punching)".
Here, the set times for "trial processing/inspection time (plain)" and "inspection additional time (printing/punching)" (see Figure 21) are determined depending on whether the order is a new order or a repeat order after an order change. Depending on the settings, they are configured differently.
Therefore, as shown in FIG. 22(b), if the subsequent order is a new order, the setting time (30 seconds/ (see Figure 21), use the set time (60 seconds/see Figure 21) for "Trial processing/inspection time (plain color/new order)" and use the set time (10 seconds/see Figure 21) for "Inspection additional time (1 color)". seconds/see Figure 21), but use the set time (15 seconds/see Figure 21) of the "inspection additional time (one color/new order)".

As a further modification, as mentioned above, if the subsequent order is a new order and the time required to adjust the machine is considered to be the same for a plain color and a case that involves printing or punching, the "trial" In addition to using "processing/inspection (plain color/new order) time" (see Figure 21), "inspection additional time (printing/punching)" (see Figure 21) instead of "inspection additional time (printing/punching/new order)" ) can be used. In this case, the sixth target preparation time for "inspection/adjustment (one color)" in FIG. 22(b) becomes the sixth target preparation time for "inspection (one color)", which is a short time.

In addition, in the embodiments and modifications of the present invention described above, in setting the second target preparation time in the second preparation stage, only the printing plate exchange and the wooden mold exchange are taken into consideration, and the attachment and detachment of the joint blade in the creaser slotter 4 is performed. Although work is not considered, this may be considered as a further variation.
Here, the joint blade is a blade used in connection with the slotter blade 43 of the upper slotter. When the blade length of the slotter blade 43 is insufficient for the grooving dimensions of the sheet S according to the order, the operator attaches a joint blade to the slotter blade 43 in order to extend the blade length. I do. On the other hand, if the length of the slotter blade 43 is too long for the grooving dimensions of the sheet S according to the order, the operator must remove the joint blade connected to the slotter blade 43. conduct.
In this modification, the order change pattern identification unit 156 compares the information on the grooving dimensions of the sheet S included in the basic information of the subsequent order with the information on the blade length of the slotter blade 43 attached to the upper slotter. By doing so, it is possible to determine whether or not it is necessary to attach and detach the joint blade during order change. Furthermore, in this modification, the set time data for each job shown in FIG. Similarly to the embodiment described above, this added "machine set addition (joint blade attachment/detachment) time" is added as appropriate, and target preparation for each order change pattern shown in FIG. 4 or 5 is performed. Set timetable values. Note that a description of the method for acquiring the information on the length of the slotter blade will be omitted. A method for acquiring information on the blade length of a slotter blade is described in, for example, Japanese Patent Application Publication No. 2018-103535.

Next, the main effects of the target preparation time notification device for a corrugated sheet box making machine according to the embodiment of the present invention and its modification will be explained.
First, in the target preparation time notification device 122 of the corrugated sheet box making machine according to the present embodiment and its modification, the production order of each predetermined order of corrugated boxes (FIG. 13) and each order information of those corrugated boxes are displayed. (FIG. 11), and based on both the previous order information of the order produced before the predetermined order change time and the subsequent order information produced after the time of the predetermined order change, according to the production order of each order. An order change pattern identification unit 156 that specifies in advance the preparatory work required for production of the subsequent order as an order change pattern at the time of an order change between the previous order and the subsequent order; , a target preparation time calculation unit 157 that calculates in advance a target preparation time (FIGS. 4 to 6), which is a predetermined time in which all preparation work should be completed, and a predetermined order change time and/or the start of a predetermined order change. and a notification command unit 158 for notifying the worker of the previously calculated target preparation time.
Therefore, based on both the previous order information and subsequent order information before and after the order change, the operator is informed of the target preparation time according to the content of the preparation work that differs for each order change. While maintaining the motivation to complete the work, it is possible to grasp the actual preparation work time compared to the target preparation time. This will make workers aware of the need to review the arrangements for preparatory work and the arrangement of items such as prescribed replacement parts and tools necessary for preparatory work. Preparation work at the time of order change can be made more efficient.

Furthermore, in the present embodiment and its modified examples, each order information (FIG. 11) stored in the storage unit 152 includes information as to whether each printing unit is used for printing, and the order change pattern identification unit 156 Based on both the previous order information and subsequent order information before and after the order change, it is determined for each printing unit (30, 32) whether or not the printing plate (38) needs to be replaced at the time of order change, and the entire printing unit is The target preparation time calculating unit 157 determines the target preparation time as the number of printing plate changes increases, based on the specified number of printing plate changes. Calculate for a long time.
Therefore, since the target preparation time is calculated based on the number of printing plate exchanges at the time of an order change, the target preparation time corresponds to the actual work contents of the order change. For example, if the number of printing plate changes is large, the time required for the operator to complete all printing plate changes will be longer, and the time required for the operator to complete all the necessary work at the time of order change will be longer. The preparation time required also increases. Therefore, according to the present invention, the target preparation time is calculated to be longer as the number of printing plate exchanges increases, so that it is possible to notify the operator of an appropriate target preparation time. You can maintain your motivation to complete the preparation work within the day.

Furthermore, in the present embodiment and its modifications, the order change pattern identifying unit 156 identifies the number of colors to be used for printing in subsequent orders based on the post-order information after the order change, and the target preparation time calculating unit 157 Based on the number of specified colors, the target preparation time is calculated to be longer as the number of colors increases. For example, if a large number of colors are used in an order, it will take longer for the operator to inspect the sample processed product, and accordingly, the time required to complete all the necessary work when changing orders will also increase. become longer. Therefore, the larger the number of colors, the longer the target preparation time is calculated, so the target preparation time to be notified becomes more appropriate.

Furthermore, in this embodiment and its modifications, the box making machine 1 automatically positions predetermined movable members at the time of order change, and the target preparation time (FIGS. 4 to 6) Assuming that no replacement is performed, the first set time (lot end/machine set time (from plain to plain )), the time from the end of production of the previous order until the completion of the printing plate exchange for the subsequent order, assuming that the printing plate is replaced at the time of order change, and the first set time. After the difference in the second set time (additional machine set time (print plate exchange)), the positioning of the predetermined movable member, and the plate exchange are completed, the box making machine starts after the corrugated sheet is set. The third setting time (sheet set addition time) until the box making machine starts and the fourth setting time (paper feeding preparation time) from when the box making machine starts until trial processing of the cardboard box starts, and the order change time. Assuming that printing will not be performed in the subsequent post-order, start trial processing of the cardboard box, inspect the trial-processed cardboard box, and start production of the post-order cardboard box by continuous paper feeding. The fifth setting time (trial processing/inspection time (plain color)) up to and including the trial processing time after starting trial processing of a cardboard box, assuming that printing will be performed on a subsequent order after an order change. This is the total time of the time from when the cardboard box is inspected to the start of production of the subsequent order, and the sixth set time (inspection additional time (printing)), which is the difference from the fifth set time.
In this way, in this embodiment and its modified examples, the target preparation time is calculated according to the work contents of printing plate exchange and inspection of trial-processed cardboard boxes, which differ for each order change. The target preparation time can be calculated as a time that matches the actual work content.

Further, in the present embodiment and its modified examples, the target preparation time includes the setting time of the color change time for replacing the ink of the printing device of the box making machine, and the target preparation time calculation unit 157 If the color change time setting time is longer than the total set time, the color change time setting time is set instead of the first to third setting times, so you can set the target preparation time more effectively and more appropriately. It can be calculated.

In the modification of the present embodiment, the storage unit 152 further stores past produced order information (FIG. 11), and the order change pattern identification unit 156 further stores past produced order information (FIG. 11) in the storage unit. Referring to the order information, the target preparation time calculation unit 157 specifies whether or not the order information of the subsequent order produced after the predetermined order change is included in the order information produced in the past. If the subsequent order information is a new order that is not included in the order information produced in the past, the target preparation time is calculated to be longer than if it is not a new order (if it is a repeat order).
In this way, in this modified example, the target preparation time is calculated depending on whether the order after the order change is a new order, so the target preparation time is more closely aligned with the actual order change work content. Become. For example, if the order immediately after an order change is a new order, it is common that the machine needs to be adjusted after inspecting the trial processed product, and compared to the case of a repeat order that has been produced in the past, the trial processing It takes a long time from when the order starts to be produced. Here, it is assumed that new orders require more time for inspection than orders that are not new (repeat orders). Therefore, according to this modification, since the target preparation time is calculated longer for a new order than for a repeat order, it is possible to calculate the target preparation time more effectively and more appropriately. In this modification, by setting the time to take into account the time required for machine adjustment, it is possible to achieve the target preparation time even for new orders, and the preparation work can be completed within the operator's target preparation time. You can maintain your motivation to do so.

Furthermore, in the present embodiment and its modified examples, the order change pattern is defined by the printing plate exchange pattern (FIGS. 4 and 5) defined by the previous order information and the subsequent order information, and by the previous order information and the subsequent order information. The order change pattern specifying unit 156 specifies the order change pattern including the pattern for changing the printing plate and the pattern for changing the wood pattern (FIGS. 4 and 5). (FIGS. 4 to 6), and the storage unit 152 stores the identified order change pattern and the target preparation time calculated by the target preparation time calculation unit as data (FIGS. 4 and 5), The notification command unit 158 notifies the operator of the target preparation time stored in association with this order change pattern. Therefore, it is possible to notify the worker of the target preparation time more effectively and more appropriately.

In addition, in this embodiment and its variations, the preparatory work includes positioning of predetermined movable members automatically performed by the box making machine, exchanging printing plates and exchanging wooden molds performed by the operator, and preparing the cardboard box after trial processing. The storage unit 152 stores the set time for positioning a predetermined movable member, which is preset based on the actual measurement value of the preparatory work automatically executed by the box making machine 1, and the skilled worker for each work. The data is stored in advance based on the actual measurements of the preparatory work performed by the operator, and the set times for stamp exchange, wooden mold exchange, and inspection of trial-processed cardboard boxes are stored, and order change patterns are created. The target preparation time (FIGS. 4 and 5) stored in association with the stored setting time for positioning a predetermined movable member automatically executed by the box making machine, printing plate exchange executed by the operator, It is set based on data including the set time for replacing the wooden mold and inspecting the trial-processed cardboard box.
Therefore, the target preparation time can be calculated more appropriately. More specifically, the target preparation time is set based on the actual measurements of the preparation work automatically performed by the box making machine and the actual measurements of the preparation work performed by workers skilled in each task. The target preparation time (FIGS. 4 to 6), which is the predetermined time for completion, can be set to a more appropriate time.

S Corrugated sheet FD Sheet feeding direction/sheet conveying direction 1 Corrugated sheet box making machine 2 Paper feeding device 3 Printing device 4 Creaser slotter 5 Die cutter 6 Folder gluer 7 Sheet separating device 8 Counter ejector 9 Binding device 27 Feed roll 28 Production number counting sensor 31 Ink can 33 Anilox rolls 34, 36 Printing cylinder 37 Press roll 38 Printing plate 54 Punching die (wooden pattern)
100 System including target preparation time notification device for box making machine 110 Production control device for box making machine 120 Lower management device 122 Upper management device/target preparation time notification device 156 Order change pattern identification unit 157 Target preparation time calculation unit 158 Notification command Department

Claims (8)

A target preparation time notification device for a corrugated sheet box making machine that calculates a target preparation time according to the work content required at the time of an order change in the production of corrugated boxes by the box making machine and notifies a worker of the calculated target preparation time,
a storage unit that stores the production order of each predetermined order of cardboard boxes and each order information of those cardboard boxes;
According to the production order of each order above, based on both the previous order information of the order produced before the predetermined order change time and the subsequent order information produced after, orders between those previous orders and subsequent orders are determined. an order change pattern identification unit that identifies in advance preparatory work necessary for production of a subsequent order at the time of change as an order change pattern;
a target preparation time calculation unit that calculates in advance a target preparation time, which is a predetermined time in which all of the preparation work should be completed, based on the identified order change pattern;
and a notification command unit for notifying the operator of the calculated target preparation time at the time of a predetermined order change and/or before the start of a predetermined order change ,
The above preparatory work includes inspection of the trial-processed cardboard box carried out by the worker,
The order change pattern identification unit identifies the number of colors to be used for printing in subsequent orders as the number of colors for inspecting the printed part of the cardboard box, based on the post-order information after the order change,
The target preparation time calculation unit calculates the target preparation time to be longer as the number of colors to be inspected increases based on the number of specified colors. Time notification device. A target preparation time notification device for a corrugated sheet box making machine that calculates a target preparation time according to the work content required at the time of an order change in the production of corrugated boxes by the box making machine and notifies a worker of the calculated target preparation time,
a storage unit that stores the production order of each predetermined order of cardboard boxes and each order information of those cardboard boxes;
According to the production order of each order above, based on both the previous order information of the order produced before the predetermined order change time and the subsequent order information produced after, orders between those previous orders and subsequent orders are determined. an order change pattern identification unit that identifies in advance preparatory work necessary for production of a subsequent order at the time of change as an order change pattern;
a target preparation time calculation unit that calculates in advance a target preparation time, which is a predetermined time in which all of the preparation work should be completed, based on the identified order change pattern;
and a notification command unit for notifying the operator of the calculated target preparation time at the time of a predetermined order change and/or before the start of a predetermined order change ,
The storage unit further stores order information produced in the past,
The order change pattern identifying section further refers to the order information produced in the past in the storage section, and determines whether the order information of the subsequent order produced after the predetermined order change is included in the order information produced in the past. identify whether or not;
The target preparation time calculation unit calculates the target preparation time to be longer when the subsequent order information after the order change is a new order that is not included in the order information produced in the past than when the order is not a new order. A target preparation time notification device for a corrugated sheet box making machine, characterized by: Each order information stored in the storage unit includes information as to whether each printing unit is used for printing,
The order change pattern identification section specifies whether or not a printing plate needs to be replaced at the time of an order change for each printing unit based on both the previous order information before and after the order change and the subsequent order information, and also Identify the number of stamp changes required by operators when changing orders,
The cardboard sheet according to claim 1 or 2 , wherein the target preparation time calculation unit calculates the target preparation time to be longer as the number of times the printing plate is replaced is larger, based on the specified number of times the printing plate is replaced. Target preparation time notification device for box making machine. The box making machine automatically positions predetermined movable parts when changing orders.
The target preparation time above is
A first set time from the end of production of the previous order until the positioning of the predetermined movable member of the box making machine is completed, assuming that the printing plate is not replaced at the time of order change;
This is the difference between the time from the end of the production of the previous order until the completion of the printing plate exchange for the subsequent order and the above first set time, assuming that the printing plate is replaced at the time of order change. a second setting time;
a third set time from when both the positioning of the predetermined movable member and the stamp exchange are completed until the box making machine is started after the setting of the corrugated cardboard sheet is completed;
a fourth set time from when the box making machine starts up until trial processing of the cardboard box starts;
Assuming that printing will not be performed on subsequent orders after an order change, we will start trial processing of corrugated boxes, inspect the trial processed corrugated boxes, and start production of subsequent orders using continuous paper feeding. a fifth setting time until the start;
Assuming that printing will be performed on a subsequent order after an order change, the time from starting trial processing of a cardboard box to inspecting the trial processed cardboard box and starting production of the subsequent order, and the above The target preparation time notification device for a ball sheet box making machine according to any one of claims 1 to 3 , wherein the total time is a total time including a sixth set time that is a difference from the fifth set time. The above target preparation time includes the setting time of color change time to replace the ink of the printing device of the box making machine,
If the set time of the color change time is longer than the total time of the first to third set times, the target preparation time calculation unit sets the color change time instead of the first to third set times. The target preparation time notification device for a ball sheet box making machine according to claim 4, which sets a time. The above-mentioned order change pattern is the printing plate exchange pattern of the printing device of the box making machine, which is defined by the previous order information and the subsequent order information, and the pattern of the die cutter of the box making machine, which is defined by the previous order information and the subsequent order information. including a pattern for changing the pattern of the punching die;
The order change pattern specifying unit specifies an order change pattern including the printing plate exchange pattern and the wood pattern exchange pattern,
The storage unit stores the identified order change pattern and the target preparation time calculated by the target preparation time calculation unit as data in association with each other,
The target preparation time notification device for a corrugated sheet box making machine according to any one of claims 1 to 5 , wherein the notification command unit notifies the operator of the target preparation time stored in association with the order change pattern. . The above preparatory work includes the positioning of predetermined movable members automatically performed by the box making machine, the printing plate exchange, the wooden mold exchange, and the inspection of the trial-processed cardboard box performed by the operator,
The above storage section stores the set time for positioning a predetermined movable member, which is preset based on the actual measured value of the preparatory work automatically executed by the box making machine, and the actual measured value of the preparatory work performed by an operator skilled in each work. Stores data on preset times for printing plate exchange, wooden mold exchange, and inspection of trial-processed cardboard boxes to be executed by the operator, which are preset based on
The target preparation time stored in association with the order change pattern is the set time for positioning a predetermined movable member automatically executed by the box making machine, the printing plate exchange executed by the operator, and the 7. The target preparation time notification device for a corrugated sheet box making machine according to claim 6 , wherein the target preparation time notification device for a corrugated sheet box making machine is set based on data including a set time for mold exchange and inspection of a trial-processed corrugated box. The above corrugated sheet box making machine consists of a paper feeding device that feeds corrugated sheets one by one, a printing device that prints on the corrugated sheets, a creaser slotter that adds ruled lines to the corrugated sheets, cuts grooves, and forms seams, and corrugated sheets. A die cutter that forms a punched part in a predetermined shape, a folder gluer that supplies adhesive to the seam, bends the corrugated sheets along the ruled lines, and joins them into a box shape, and a machine that counts the corrugated sheets that have been joined into the box shape. The target preparation time notification device for a corrugated sheet box making machine according to any one of claims 1 to 7 , further comprising a counter ejector that forms and sends out a batch of sheets equal to the number of bundled sheets.

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