JP5044451B2 - Processing schedule correction apparatus and processing schedule correction method - Google Patents

Description

  The present invention relates to an apparatus and method for correcting a predetermined processing schedule set in advance in a system in which a plurality of orders having different processing contents are batch-processed on a charge basis.

  Conventionally, in a system in which a plurality of orders are processed, an apparatus that automatically creates a processing schedule is used. In addition, a configuration has been developed in which an operator or the like can appropriately change the schedule based on the actual processing status with respect to the created processing schedule.

  For example, in Patent Document 1, as shown in FIG. 14, in an aluminum plate processing system in which eight different products (orders) are continuously processed along four steps of annealing, straightening, cleaning, and slitting, respectively. An apparatus for correcting a preset processing schedule is disclosed.

  In the processing system, products having common processing conditions are grouped into lots (corresponding to charge in batch processing), and schedule management is performed in units of lots. For example, in the cleaning process, products having the same type of cleaning liquid are grouped in the same lot (the products of product numbers 1, 2, and 4 are grouped in lot Lw1, and the products of product numbers 3, 5, and 7 are grouped in lot Lw2. In the slitter process, products having the same product width are grouped into the same lot (product numbers 1 and 2 are assigned to lot Ls1, product numbers 3 to 6 are assigned to lot Ls2, and product numbers 4 and 7). , 8 are collected in lot Ls3). A processing schedule for each lot and a processing schedule for each product in the lot are set in advance.

  The apparatus includes a display that displays the processing schedule, and an operation unit that can change a processing schedule of a specific lot with respect to the displayed processing schedule. In this apparatus, when the processing schedule of a specific lot in a specific process is changed by the operation means, the process order of each product included in the specific lot is not reversed in the upstream / downstream processes sandwiching the specific process. If it is determined whether the rotation is reversed, the processing schedule in the upstream / downstream process is changed.

For example, as shown in FIG. 15, when the processing order of the lot Lw1 is changed after the lot Lw2 in the cleaning process, each product (product Nos. 1, 2, and 4) included in the lot Lw1 Compare the processing timing of the cleaning process with the processing timing of the slitter process, which is the downstream process of the cleaning process, and check if the process order of each product is reversed, that is, the slitter process starts before the cleaning process ends Determine if it is not. If the process order is reversed (in FIG. 15, the process order is reversed for all products of product numbers 1, 2, and 4), the processing order of each product in the lot or the processing in units of lots Change the order. That is, as shown in FIG. 16, the product processing order in the lotter Ls3 of the slitter process is changed from product number 8 → 4 → 7 to product number 8 → 7 → 4 in order to keep the process order of product number 4 appropriate. To do. Further, in order to keep the process order of the product numbers 1 and 2 properly, the processing order of the lot Ls1 is changed after the lot Ls3 in the slitter process. In this way, in the apparatus, when the processing schedule is changed, the processing schedule is corrected so that the process order of each product is properly maintained.
JP-A-2005-190241

  The conventional apparatus simply modifies the processing schedule so that the process order of each product is properly maintained. In this apparatus, a processing priority order is set between products, and this processing priority order is set. Even if the process schedule along the line is created in advance, the process priority order may be lost due to the process schedule change operation. For example, in the conventional apparatus, although the product with the product number 1 is set to finish earlier than the product with the product number 4 in the initial processing schedule as shown in FIG. As the processing schedule is modified, the product with product number 1 is modified so that the processing is completed later than the product with product number 4, as shown in FIG. May occur.

  Of course, in order to correct the processing priority order between products to an appropriate state, it is possible for an operator or the like to further change the processing order of a lot containing products with an inappropriate processing priority order. The work becomes complicated.

  In view of such circumstances, an object of the present invention is to provide a processing schedule correction apparatus capable of appropriately correcting a processing schedule while maintaining a processing priority order among products (orders).

In the invention according to claim 1 for solving the above-mentioned problem, a plurality of orders having different processing contents are batch-processed in units of charges, and each charge is constituted by an order having common processing contents. As described above, in a system in which each order is assigned to a plurality of charges in advance, a processing schedule correction device for correcting the processing schedule of each order, wherein a processing schedule set in advance for each charge is stored. A schedule storage means for storing, a processing priority order storage means for storing a processing priority order set in advance for a plurality of orders having common processing contents, and constraints set in advance for the processing schedule of each charge as a condition, the charge from the processing of the charge is the end of the next A constraint condition storing means for storing the time to start the process, said a schedule display unit capable of displaying a processing schedule for each charge, to the schedule display means displayed the charge processing schedule, An operation means capable of changing a processing schedule for a specific charge, a schedule readjustment means for readjusting a processing schedule for each charge so as to satisfy the constraint condition, and a change in the processing schedule in accordance with an operation for changing the processing schedule An order reassigning means for reassigning each order to each charge in accordance with the operation, wherein the order reassigning means determines the processing order of the charges having the same processing contents of the constituting orders as the readjusted charges. Extract based on the processing schedule of In the charge having the same content, each order is reassigned to each charge so that the higher the processing order, the higher the processing priority order stored in the priority order storage means. The display means displays the processing schedule of each charge readjusted by the schedule readjustment means (claim 1).

  According to this apparatus, it is possible to appropriately correct the processing schedule of each charge while maintaining the processing priority order of each order in accordance with the operation of changing the processing schedule. That is, in this apparatus, in the schedule readjustment means, the process schedule in charge units is readjusted so as to satisfy the constraint conditions as the process schedule is changed, and the process schedule in charge units is appropriate. Will be corrected. Then, in the order reassigning means, based on the processing schedule of each re-adjusted charge, the processing order of charges having the same processing contents of the order is extracted, and the higher the processing order, the higher the processing priority order. Each order is reassigned to each charge so that it is composed of orders, and by executing the processing of each charge according to the processing order, the constraints are satisfied and the processing priority order between orders is maintained. Is done. Furthermore, according to the present apparatus, since the processing schedule is automatically modified to an appropriate processing schedule in accordance with the operation for changing the processing schedule, it is not necessary to further add another charge schedule, thereby improving workability.

  Further, when the system has a plurality of facilities for processing each of the orders, and the maximum number of orders that can be processed at a time in each facility is different, the processing schedule of the specific charge A new charge creating means for creating a new charge in accordance with the changing operation is provided, and the order constituting the specific charge is processed in accordance with the changing operation of the processing schedule for the specific charge. A new charge is created in accordance with the amount of change in the maximum number of processing of the equipment, and the schedule readjustment unit is configured such that the new charge processing schedule satisfies the constraint condition. Configured to readjust the processing schedule of each charge, and the order reassignment means Wherein preferably configured to reassign the orders for all charges including new charge (claim 2).

  In this way, even when the maximum number of facilities to be processed changes, all orders are assigned to charges, so that efficient processing in units of charges can be realized. Then, in the schedule readjustment means, each charge processing schedule is readjusted so that the new charge processing schedule satisfies a constraint condition, and in the order reassignment means, each charge between the charges including the new charge is changed. Since the order is reassigned, the entire processing schedule including this new charge can be made an appropriate schedule.

In addition, the present invention provides a plurality of orders in advance so that a plurality of orders having different processing contents are batch-processed in units of charges, and each charge is composed of orders having a common processing content. A process schedule correction method for correcting the process schedule in a system allocated to the charge of the schedule, wherein the schedule storage means stores a process schedule preset for each charge, and a process priority order The storage means stores a processing priority order storage step for storing a processing priority order set in advance for a plurality of orders having common processing contents, and a constraint condition storage means is preset for the processing schedule of each charge. as constraints, processing of the charge is completed Display and constraint condition storing step of storing the time to start processing the next charge, the schedule display means, a schedule display step of displaying the processing schedule of each charge to the operator or the like, the schedule display means from the The schedule readjustment unit re-adjusts the charge processing schedule so as to satisfy the constraint condition as the specific charge processing schedule is changed for each charge processing schedule. The adjustment step and the order reassignment means are reordered by the schedule readjustment means, and the order reassignment step of reassigning each order to each charge in accordance with the change operation of the processing schedule. Schedule to display the processing schedule of each charge Reordering step, and in the order reassigning step, the order reassigning means determines the processing order of charges having the same processing contents of the orders to be configured based on the processing schedule of each readjusted charge. At the same time, in the charge having the same processing content, each order is re-assigned to each charge so that the higher the processing order, the higher the processing priority order stored in the priority order storage means. A processing schedule correction method characterized by allocating (claim 3).

  As described above, according to the processing schedule correction device, it is possible to maintain the processing priority order between orders while appropriately maintaining the processing schedule of each charge at the time of changing the processing schedule.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The processing schedule correction device according to the present invention is configured such that a plurality of orders having different processing contents are batch-processed in units of charges, and each charge is configured by an order having a common processing content. In a system in which orders are assigned to a plurality of charges in advance, the processing schedule correction device corrects the processing schedule of each order.

  Here, the case where the said system is made into the annealing processing system in which the some rolling coil (order) from which processing temperature differs is annealed is demonstrated. In this annealing processing system, rolling coils W (or slabs) such as steel, aluminum, and copper in rolling are processed in four processing furnaces f1 to f4 as shown in FIG. Each coil W is collected into a charge according to its annealing temperature, and in each of the furnaces f1 to f4, a plurality of coils W are annealed simultaneously on a charge basis. For example, in FIG. 1, eight coils W40_1 to W40_8 having an annealing temperature of 400 degrees are combined into one charge and simultaneously processed in the first furnace f1, and four coils W45_1 to W45_4 having an annealing temperature of 450 degrees. Are combined into one charge and processed simultaneously in the second furnace f2, and four coils W60_1 to W60_4 having an annealing temperature of 600 degrees are combined into one charge and processed simultaneously in the third furnace f3. Two coils W50_1 and W50_2 having a temperature of 500 degrees are combined into one charge and simultaneously processed in the No. 4 furnace f4. Here, as shown in FIG. 2, in each of the furnaces f1 to f4, the maximum number of coils W that can be processed at one time (hereinafter referred to as capacity), the processing time, and the end of one process until the start of the next process The appropriate set-up times are different. Moreover, the said processing time changes with annealing temperatures also in the same furnace f1-f4.

  The annealing processing system is provided with a schedule management system 1 that manages a processing schedule for each coil W in charge units. The schedule management system 1 is a computer, and as shown in FIG. 3, an operation unit 50 including a mouse and a keyboard, a display device (schedule display means) 60 including a monitor, a CPU (Central Processing Unit), and a ROM It has the calculating part 70 which consists of (Read Only Memory) and RAM (Random Access Memory).

  The calculation unit 70 includes an initial schedule creation unit 10, a schedule data storage unit (schedule storage unit) 22, a coil data storage unit (processing priority order storage unit) 24, and a constraint master storage unit (constraint condition storage unit) 26. A schedule readjustment unit (schedule readjustment unit) 30, a charge ordering unit 32, a coil reassignment unit (order reassignment unit) 34, a schedule update unit 38, a charge movement information acquisition unit 40, and a Gantt chart. And a creation unit 90. And the part except the said initial schedule preparation part 10 among this schedule management systems 1 functions as a process schedule correction apparatus which concerns on this invention. The ROM or RAM is used for the schedule data storage unit 22, the coil data storage unit 24, and the constraint master storage unit 26. And the calculation of each other part is performed by said CPU.

  The coil data storage unit 24 is a part that stores the processing priority order between the coils W. In this embodiment, the delivery date of each coil W is stored as this processing priority order.

  The restriction master storage unit 26 is a part for storing conditions that are restrictions in creating a processing schedule for each coil W in charge units. Here, as a constraint condition, the condition that the number of coils W processed at a time in each furnace f1 to f4 is equal to or less than the capacity of each furnace f1 to f4, and the process in units of charge in each furnace f1 to f4. A condition is set in which the idle time is set as the setup time.

  The initial schedule creation unit 10 is a part that creates a processing schedule for each coil W by a predetermined method. In the initial schedule creation unit 10, the plurality of workpieces W are subjected to annealing temperatures so that the processes of the coils W are performed in the order of delivery, and the processes are completed within the delivery date, and the constraint conditions are satisfied. The initial value of the processing schedule for each charge is created. An existing apparatus may be applied to the initial schedule creation unit 10, and a detailed description of the processing schedule creation method in the initial schedule creation unit 10 is omitted.

  The schedule data storage unit 22 is a part that stores an initial value of the processing schedule created by the initial schedule creation unit 10.

  The Gantt chart creation unit 90 receives the processing schedule transmitted from the initial schedule creation unit 10 and the schedule update unit 38 via the data input / output interface 82, and based on the received processing schedule, FIG. This is the part that creates a Gantt chart.

  The display device 60 is for displaying the Gantt chart created by the Gantt chart creation unit 90. The display device 60 receives the created Gantt chart via the output interface 84 and displays the Gantt chart to an operator or the like.

  Here, it may be desirable to change the processing schedule created by the initial schedule creation unit 10 according to the actual processing status. For example, when the delivery of a predetermined coil W is delayed from the schedule, when the delivery date is changed, or when it becomes difficult to carry out a predetermined process due to equipment troubles, etc. It is desirable for a person to change the processing schedule as appropriate. Therefore, in the schedule management system 1, a specific charge processing schedule can be operated on the processing schedule created by the initial schedule creation unit 10 displayed on the display device 60 by the operation unit 50. It is configured as follows. Specifically, the operation unit 50 can change the furnace for processing the specific charge and the processing timing of the charge.

  The charge movement information acquisition unit 40 is a part that acquires information related to the movement of charges accompanying the operation of the operation unit 50. The charge movement information acquisition unit 40 acquires a new furnace number in which the specific charge is processed and a new processing start time of the charge via the input interface 86.

  Here, when the charge processing furnace is changed, the number of coils W previously assigned to the charge may exceed the capacity of the changed processing furnace. Further, when the charge processing timing is changed, the free time between charges may change, and this free time may exceed the setup time. Therefore, in the processing schedule management system 1, the schedule readjustment unit 30 readjusts the processing schedule for each charge so as to satisfy the constraint conditions regarding the furnace capacity and setup time.

  In particular, in the schedule management system 1, the schedule readjustment unit 30 is provided with a new charge creation unit 31, and the new charge creation unit 31 creates a new charge to cancel the charge capacity violation. That is, the new charge creation unit 31 creates a new charge when the number of coils W assigned to the specific charge exceeds the capacity of the processing furnace after the change as described above, The over-capacitance coil W is allocated. Thus, if the coil W exceeding the capacity is assigned to a new charge, the charge capacity violation is cancelled.

  The charge ordering unit 32 is a part that arranges the order of charge processing. In the charge ordering unit 32, based on the processing schedule readjusted by the schedule adjusting unit 30, the processing numbers are assigned to the charges constituted by the coils W having the same annealing temperature in the order of the processing end time.

  The coil reassignment unit 34 is a part for reassigning the coil W to each charge. That is, when a specific charge is moved as described above, the processing schedule of the coil W assigned to the specific charge is also changed at the same time. In addition, when the processing schedule in units of charges is readjusted as described above, the processing schedule of the coil W assigned to the charge whose processing schedule has been readjusted is also changed. As a result, the processing order between the coils W may not be consistent with the delivery order. Therefore, the coil assigning unit 34 sequentially assigns the coils W with earlier delivery dates in the order of the numbers given by the charge ordering unit 32, and matches the processing order of the coils W with the delivery date order. At this time, each coil W is reassigned to the charge to which the coil W having the same annealing temperature is assigned as an initial value in advance, and the annealing temperature of each charge is maintained, so that the processing time in charge units, etc. Does not change.

  The schedule update unit 38 is a part that summarizes the re-adjustment result of the charge unit processing schedule by the schedule adjustment unit 30 and the re-assignment result of the coil W to each charge in the coil re-assignment unit 34. The new processing schedule compiled by the schedule update unit 38 is transmitted to the schedule data storage unit 22 and stored as a processing schedule in the present annealing processing system, and is also transmitted to the Gantt chart creation unit 90. The information is displayed on the operator or the like by the display device 60.

  The details of the procedure for correcting the processing schedule when a specific charge is moved with respect to the initial value of the processing schedule created by the initial schedule creation unit 10 will be described below with reference to the flowchart of FIG.

  Here, as shown in FIG. 4, 12 coils W40_1-12 are annealed at an annealing temperature of 400 ° C., 9 coils W45_1-9 are annealed at an annealing temperature of 450 ° C., and 19 coils W40_1— 19 is annealed at an annealing temperature of 500 ° C., 7 coils W55_1 to 7 are annealed at an annealing temperature of 550 ° C., and 18 coils W40_1 to 18 are annealed at an annealing temperature of 600 ° C. The case where the delivery date as shown in FIG. 5 is set about each coil W is demonstrated. FIG. 5 shows that, for example, even when the coil W has the same annealing temperature of 400 ° C., the coils W40_1 to 4 have a delivery date set to 4 days, and the coils W40_5 to 8 have a delivery date set to 8 days. Coils W40_9 to 12 indicate that the delivery date is set to 10 days. Here, the data shown in FIG. 5 is stored in the coil data storage unit 24 in a state in which the coil number and the delivery date are associated with each other (processing priority order storage step), and the constraint master storage unit 26 stores the data. As described above, it is assumed that the constraint conditions regarding the capacity and the like of each furnace f1 to f4 are stored (constraint condition storage step).

  Further, here, the initial schedule creation unit 10 creates initial values of the processing schedule as shown in FIGS. 6 and 7 as initial values of the processing schedule for the 65 coils W, and the processing schedule storage unit 22 (schedule storage step).

  In FIG. 7, the horizontal axis is a time axis with a minimum increment of 4 hours, and the vertical axis indicates the furnaces f1 to f4. Further, one rectangle (tile) in FIG. 7 shows one charge, and in this processing schedule, 65 coils W are assigned to 17 charges according to the annealing temperature. For example, the 12 coils W40_1 to 12 having an annealing temperature of 400 ° C. have a charge no. Assigned to 8, 13, and 3 charges. Here, the numbers in parentheses after the coil numbers in FIG. 6 and the numbers in parentheses below the coil numbers in FIG. 7 represent the delivery date of each coil W. As can be seen from the comparison, the processing of each coil W is set to end within the delivery date. For example, charge no. The delivery date of the coil W constituting the charge of 8 is all 4 days. The processing end date and time of 8 is adjusted to be 4 days. Further, the number of coils W assigned to each charge is equal to or less than the capacity of the furnace in which the annealing process is performed, and is set so as to satisfy the constraint condition on the capacity. In addition, the idle time between processes in charge units in each of the furnaces f1 to f4 coincides with the setup time of each of the furnaces f1 to f4, and is set so that the constraint condition for the setup time is satisfied.

  Here, when the operator operates the operation unit 50 with respect to the initial value of the processing schedule, a No. of annealing temperature of 450 ° C. is obtained. It is assumed that the charge of 9 is moved to the last part of the No. 4 furnace f4 as shown in FIG.

  When the charge is moved, the charge movement information acquisition unit 40 first acquires the movement information of the charge that has been moved (step S2). Here, information is acquired that the charge No. of the charge that has been moved is 9, the moved furnace is the No. 4 furnace, and the new processing start date and time is 20 on the 8th.

  Next, the schedule readjustment unit 30 readjusts the processing schedule in charge units.

  As shown in FIG. When the charge of No. 9 is moved as described above, the charge No. 3 in the No. 3 furnace f3 is changed. 8 charge and charge no. The free time between 10 charges is 36 hours. This 36 hours is not preferable because it is longer than the appropriate setup time (4 hours) for the No. 3 furnace f3. Therefore, the schedule readjustment unit 30 readjusts the processing schedule in units of charges so that the constraint condition regarding the setup time is satisfied (step S4, schedule readjustment step). Specifically, as shown in FIG. No. 9 which was scheduled to be processed after 9th. Advance the charge start time of 10, 11, 12 by 32 hours.

  In addition, charge No. As the initial value, four coils W (W45_1, 2, 3, 4) were assigned to the charge of No. 9 as the capacity of No. 3 furnace f3, but the capacity of No. 4 furnace at the destination was two. There is a capacity violation in the charge configuration before moving. Therefore, in order to cancel this capacity violation, the new charge creation unit 31 creates a new charge (step S6, schedule readjustment process) and assigns the coil W that has exceeded the capacity to the new charge (step S6). S7, schedule readjustment step). Specifically, as shown in FIG. 18 new charges were created, and charge No. Two coils W of the same number as the capacity of the No. 4 furnace are allocated to the charges of 9 and 18, respectively. At this time, the charge No. The setup time between charges 9 and 18 is set so as to satisfy the constraint conditions.

  In the steps S4 to S7, the processing schedule in charge units was readjusted so as to satisfy the constraint conditions. However, the coil W in the initial state of the processing schedule is still assigned to each charge. Therefore, in the processing schedule shown in FIG. 9, the charge No. assigned to the coils W45_1 and W45_1 for the delivery date of 7 days is assigned. Charge No. 9 to which coils W45_7 to 9 having a delivery date of 9th and 10th were assigned before the charge of 9th. 11 is processed, the coils W are not processed in the order of delivery, and the coils W45_1 and 2 are delayed. Therefore, next, the coil W is reassigned to each charge.

  First, as shown in FIG. 10, the charge ordering unit 32 assigns process numbers to the charge composed of the coils W having the same annealing temperature based on the readjusted process schedule in the order of charge with the earliest process end date and time (steps). S8, order reassignment step). Next, the coil reassignment unit 34 assigns the coils W with earlier delivery dates in the order of charging with the smaller process numbers (step S10, order reassignment step). At this time, the coil reassignment unit 34 assigns the coil W between charges having the same annealing temperature so that the annealing temperature of the coil W constituting the charge does not change. As a result, as shown in FIG. 11, the processing schedule satisfies the above-mentioned constraints while maintaining the annealing temperature in units of charge, and the processing schedule in which the charging processing order and the delivery date of the coil W are matched. To be corrected.

  If processing is performed in accordance with the processing schedule modified as described above, the coils W can be processed in order of delivery date, and delays in delivery date can be avoided. For example, the coils W45_1 and W2 having a delivery date of 7 days have a charge No. of 450 ° C. at which annealing at 450 ° C. ends most quickly. Allotted to 15 charges, the process is terminated earliest among the 450 ° C. annealing processes, and the delivery delay is avoided.

  The assignment result of the coil W is transmitted to the schedule update unit 38, and the processing schedule is updated (step S12). Also, the Gantt chart shown in FIG. 11 is created by the Gantt chart creation unit 90 based on the updated processing schedule and displayed on the display device (Step S14, schedule redisplay step).

  As described above, in the present processing schedule management system 1, when a specific charge movement operation is performed on the initial value of the processing schedule created in advance, the processing schedule is set in each furnace f1 to f4. The schedule can be corrected so as to suppress the delay in delivery of the coil W while satisfying the constraint conditions. In particular, since the processing schedule is automatically corrected in accordance with the charge movement operation, it is not necessary to perform an additional operation on the processing schedule, so that the workability can be improved.

  Here, the processing order of the coil W is between the charges constituted by the coil W having an annealing temperature different from the annealing temperature of the operated charge and the annealing temperature of the charge whose processing schedule has been changed by the charge adjusting unit 30. Maintained in order of delivery. Therefore, the process numbering to the charge by the charge ordering unit 32 and the reassignment of the coil W by the coil reassignment unit 34 are performed by changing the processing schedule in the annealing temperature of the operated charge and the charge adjustment unit 30. The processing may be speeded up only by charging only at the same annealing temperature as the annealing temperature.

  Further, as shown in FIG. 13, the new charge creation step by the new charge creation unit 31 may be performed after the reassignment of the coil W to the charge. In this case, the schedule adjustment unit 30 adjusts the charge processing schedule so that the constraint condition regarding the setup time is satisfied (step S4), and then the charge ordering unit 32 assigns a process number to each charge. (Step S8). Then, the coil reassignment unit 34 assigns a number of coils W equal to or less than the capacity to each charge (step S10). At this time, since the coil W whose capacity is over in each furnace is not assigned to charge, a new charge is created when this unassigned coil W is generated. That is, it is determined whether or not an unassigned coil W is generated in step S20. If this determination is YES, a new charge is created by the new charge creation unit 31 (step S21), and is not assigned to a new charge. Are assigned (step S22).

  Further, the new charge creation unit 31 may be omitted in a system or the like where it is known that the capacity does not exceed.

  The application range of the processing schedule management system 1 is not limited to the annealing processing system as described above. Further, the specific contents of the constraint conditions for creating the processing schedule are not limited to the above. For example, when a lower limit value is set for the number of coils W processed at a time in each furnace f1 to f4, the number of coils W included in each charge is set to be equal to or higher than the lower limit value as the constraint condition. Conditions may be added.

It is explanatory drawing for demonstrating the annealing processing system to which the processing schedule management system which concerns on embodiment of this invention is applied. It is a figure which shows an example of the constraint conditions etc. in creating and correcting a processing schedule. 1 is a schematic block diagram of a processing schedule management system according to an embodiment of the present invention. It is a figure which shows an example of the coil processed with an annealing treatment system. It is a figure which shows an example of the delivery date of each coil shown in FIG. It is a figure which shows an example of the initial value of the process schedule produced in the process schedule preparation part. It is a Gantt chart of the processing schedule of FIG. It is explanatory drawing which shows an example of the movement operation result of a specific charge. It is explanatory drawing for demonstrating the readjustment method of the process schedule by a process schedule adjustment part. It is explanatory drawing for demonstrating how to give the process number of the charge by a charge ordering part. It is a Gantt chart which shows an example of the correction result of a processing schedule. It is a flowchart for demonstrating the correction procedure of the processing schedule in a processing schedule management system. It is a flowchart for demonstrating the other correction procedure of the processing schedule in a processing schedule management system. It is explanatory drawing for demonstrating the correction procedure of the process schedule in the conventional process schedule correction apparatus. It is explanatory drawing for demonstrating the correction procedure of the process schedule in the conventional process schedule correction apparatus. It is explanatory drawing for demonstrating the correction procedure of the process schedule in the conventional process schedule correction apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Processing schedule management system 10 Initial schedule preparation part 22 Schedule data storage part (schedule storage means)
24 Coil data storage unit (processing priority order storage means)
26 Constraint master storage unit (constraint condition storage means)
30 Schedule adjustment part (schedule adjustment means)
32 charge ordering unit 34 coil reassignment unit (order reassignment means)
50 Operation part (operation means)
60 Display device (schedule display means)

Claims (3)

A plurality of orders having different processing contents are batch-processed in units of charges, and each order is assigned to a plurality of charges in advance so that each charge is composed of orders having common processing contents. A processing schedule correcting device for correcting the processing schedule of each order,
Schedule storage means for storing a processing schedule set in advance for each charge;
Processing priority order storage means for storing a processing priority order set in advance for a plurality of orders having a common processing content;
Restriction condition storage means for storing the time from the end of the charge process to the start of the next charge process as a preset restriction condition for each charge processing schedule,
Schedule display means capable of displaying a processing schedule of each charge;
Operation means capable of changing a specific charge processing schedule for each charge processing schedule displayed on the schedule display means;
In accordance with the change operation of the processing schedule, schedule readjustment means for readjusting the processing schedule of each charge so as to satisfy the constraint conditions;
In accordance with the change operation of the processing schedule, order reassignment means for reassigning each order to each charge,
The order reassigning means extracts the processing order of charges having the same processing content of the order to be configured based on the processing schedule of each readjusted charge, and in the charge having the same processing content, Reassign each order to each charge so that the higher the processing order, the higher the processing priority order stored in the priority order storage means.
The schedule display means displays a processing schedule for each charge readjusted by the schedule readjustment means. The processing schedule correction device according to claim 1, which is applied to a system having a plurality of facilities with different maximum processing numbers of orders that can be processed at one time,
A new charge creating means for creating a new charge in accordance with an operation for changing the processing schedule of the specific charge;
The new charge creating means is configured to change the maximum processing number of the equipment when the equipment for processing the order constituting the specific charge is changed in accordance with the change operation of the processing schedule of the specific charge. Create a new charge according to
The schedule readjustment means readjusts the processing schedule of each charge so that the processing schedule of the new charge satisfies the constraint condition,
The order reassignment means reassigns each order to all charges including the new charge. A plurality of orders having different processing contents are batch-processed in units of charges, and each order is assigned to a plurality of charges in advance so that each charge is composed of orders having common processing contents. A processing schedule correction method for correcting the processing schedule in a system,
A schedule storing step for storing a processing schedule set in advance for each charge;
A processing priority order storage step in which the processing priority order storage means stores a processing priority order set in advance for a plurality of orders having common processing contents;
A constraint condition storage step in which the constraint condition storage means stores a time from the end of the charge process to the start of the next charge process as a preset constraint condition for each charge process schedule; ,
A schedule display step for displaying a processing schedule of each charge to an operator or the like;
As the specific charge processing schedule is changed with respect to the processing schedule for each charge displayed on the schedule display means, the schedule readjustment means performs a processing schedule for each charge so that the constraint condition is satisfied. Schedule readjustment process to readjust,
An order reassignment unit reassigns each order to each charge in accordance with the change operation of the processing schedule; and
The schedule display means includes a schedule redisplay step for displaying a processing schedule of each charge readjusted by the schedule readjustment means,
In the order reassignment step, the order reassignment unit extracts a processing order of charges having the same processing contents of the orders to be configured based on the processing schedule of each readjusted charge, and the processing contents are In the common charge, each order is reassigned to each charge so that the higher the processing order, the higher the processing priority order stored in the priority order storage means. Schedule correction method.

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