JP6937427B2 - Parts supply management device, parts mounting system and parts supply management method - Google Patents

Description

The present invention relates to a technique for managing the supply of parts to a feeder that supplies parts mounted on a substrate from a parts storage member.

Conventionally, in order to produce a component mounting board by mounting components on a board, a feeder that supplies components stored in a component storage member such as a supply reel has been used. In the configuration in which the parts are supplied from the parts storage member by the feeder, as shown in Patent Document 1, the feeder that has used up the parts of the parts storage member is subjected to the mounting work of newly mounting the parts supply member. , The operator needs to perform.

In addition to the mounting work, there are other work required of the operator. For example, as shown in Patent Document 2, the brightness and color of an LED (Light Emitting Diode) vary depending on the solid. Therefore, characteristic management is performed such as mounting a limiting resistance having a resistance value according to the brightness of the LED, and aligning or dispersing the brightness and color of a large number of LEDs mounted on the substrate. Therefore, a component storage member for accommodating a component having a predetermined characteristic is attached to a feeder that supplies a component that requires characteristic management. Then, when changing the characteristics of the parts to be mounted on the board, it is necessary to change the characteristics of the parts storage member mounted on the feeder to the parts storage member according to the characteristic change.

Japanese Unexamined Patent Publication No. 2011-204824 Japanese Unexamined Patent Publication No. 2005-136023

Due to such circumstances, there is a problem that the work load of the operator due to the mounting work and the characteristic changing work becomes large.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a technique capable of reducing the work load of an operator.

The component supply management device according to the present invention produces a component mounting substrate by mounting components on a substrate using a plurality of mounted component storage members in order and using a plurality of feeders that supply components from the component storage member. The total number of remaining parts, which is the total number of parts remaining in the plurality of parts storage members, is reduced to a predetermined number after the acquisition unit for acquiring the production plan and the part of one of the plurality of parts storage members are cut off. Based on the result of predicting the mountable period of the feeder from the production plan, the mounting time is set to indicate the timing of the mounting work of mounting another component storage member on the feeder after the parts of one component storage member are cut. A setting unit is provided, and a plurality of feeders include a first feeder and a second feeder different from the first feeder, and the setting unit is mounted on the first feeder for changing the characteristics of parts mounted on the board. The prediction process that predicts the change time that requires the characteristic change work to change the parts storage member to be performed based on the production plan, and the search process that searches for the second feeder that is predicted to overlap the mountable period with the change time. It is executed, and the mounting time for the second feeder searched by the search process is set to the change time.

In the component supply management method according to the present invention, a component mounting board is produced by mounting components on a substrate using a plurality of mounted component storage members in order and using a plurality of feeders that supply components from the component storage member. The total number of remaining parts, which is the total number of parts remaining in the plurality of parts storage members, is reduced to a predetermined number after the process of acquiring the production plan and the parts of one of the plurality of parts storage members are cut off. Based on the result of predicting the mountable period up to the feeder from the production plan, the process of setting the mounting time indicating the timing of mounting work to mount another part storage member on the feeder after the part of one component storage member is cut off. The plurality of feeders include a first feeder and a second feeder different from the first feeder, and in the process of setting the mounting time, the first feeder is used to change the characteristics of the parts to be mounted on the board. Prediction processing that predicts the change time that requires characteristic change work to change the parts storage member to be mounted based on the production plan, and search process that searches for the second feeder that is predicted to overlap the mountable period with the change time. Is executed, and the mounting time for the second feeder searched by the search process is set to the change time.

In the present invention (parts supply management device, parts supply management method) configured in this way, the change time that requires the characteristic change work for the first feeder is predicted based on the production plan. Further, a second feeder whose mountable period during which the component storage member can be mounted overlaps with the change time is searched (search process). Then, the mounting time of the second feeder searched by the search process is set to the change time. Therefore, the mounting work of mounting the component storage member on the second feeder and the characteristic changing work can be collectively executed according to the change time. As a result, the operator can efficiently perform these operations, and the work load of the operator can be reduced.

By the way, when changing the characteristics of the parts to be mounted on the board, it may be necessary to collectively change the parts storage members mounted on each of the plurality of first feeders according to the characteristics change. Therefore, the plurality of feeders include a plurality of first feeders in which the component storage members mounted on the respective feeders are associated with each other according to the characteristics of the components to be mounted on the board, and the setting unit is mounted on the board in the prediction process. Parts replenishment management device so that the change time required for the characteristic change work to change the parts storage member mounted on all of the plurality of first feeders in order to change the characteristics of the parts to be changed is predicted based on the production plan. May be configured. In such a configuration, the mounting work of mounting the component storage member on the second feeder and the characteristic change work executed for the plurality of first feeders can be collectively executed according to the change time. As a result, the operator can efficiently perform these operations, and the work load of the operator can be reduced.

Further, the parts supply management device may be configured so as to further include a notification unit that notifies the operator to execute the mounting work on the second feeder searched by the search process and the characteristic change work at the change time. .. In such a configuration, the operator can surely perform the mounting work and the characteristic changing work according to the change time.

In addition, the setting unit sets the mounting time by overlapping the mounting period of the plurality of candidate feeders among the plurality of feeders, and plans to supply the first feeder included in the plurality of candidate feeders by the change time. The parts supply management device may be configured so as to determine whether or not to execute the mounting operation based on the number of parts and the total number of remaining parts. In such a configuration, the occurrence of mounting work for mounting unnecessary parts storage members for the production plan can be suppressed, and the work load on the operator can be reduced.

Further, the setting unit determines to remove the parts storage member mounted on the first feeder from the first feeder before the change time, which is expected not to be used by the first feeder until the change time. In addition, a parts supply management device may be configured. In such a configuration, the amount of work during the change time can be reduced, and the work load on the operator can be reduced.

In the component mounting system according to the present invention, components are mounted on a substrate using N feeders (N is an integer of 4 or more) that supply components from the component storage members by using a plurality of mounted component storage members in order. The component mounting machine for executing the production plan for producing the component mounting board and the above-mentioned component supply management device are provided. Therefore, it is possible to reduce the work load of the operator.

According to the present invention, it is possible to reduce the work load of the operator.

The plan view which shows typically the part mounting machine which is an example of the management object by the parts supply management apparatus which concerns on this invention. The side view which shows an example of the structure and operation of a tape feeder schematically. The figure which shows typically an example of the part supply reel and the reel holder which holds this. The block diagram which shows an example of the component mounting system which concerns on this invention. The figure which shows an example of the use history information of a parts supply reel schematically. The flowchart which shows an example of the component remaining number management executed by the control part of a component mounting machine. A flowchart showing an example of mounting time setting executed by the parts supply management device. The figure which shows an example of the calculation result of the wearable period executed according to the flowchart of FIG. The figure which shows an example of the rank table. The flowchart which shows an example of the wearing time setting in consideration of the change time which executes a characteristic change work. FIG. 5 is a diagram schematically showing an example of arithmetic processing in the flowchart of FIG. 10 with a timing chart. The flowchart which shows an example of the mounting mode determination for the tape feeder used for rank mounting. FIG. 5 is a diagram schematically showing an example of arithmetic processing in the flowchart of FIG. 12 with a timing chart.

FIG. 1 is a plan view schematically showing a component mounting machine which is an example of a management target by the component supply management device according to the present invention. In the figure, XYZ Cartesian coordinates consisting of the Z direction parallel to the vertical direction, the X direction parallel to the horizontal direction, and the Y direction are shown. The component mounting machine 1 includes a pair of conveyors 12 and 12 provided on the base 11. Then, the component mounting machine 1 mounts the components on the board B carried in from the upstream side in the X direction (board transfer direction) to the working position (position of the board B in FIG. 1) by the conveyor 12, and completes the component mounting. The board B is carried out from the working position to the downstream side in the X direction by the conveyor 12.

The component mounting machine 1 is provided with a pair of Y-axis rails 21 and 21 extending in the Y direction, a Y-axis ball screw 22 extending in the Y direction, and a Y-axis motor My that rotationally drives the Y-axis ball screw 22. 23 is fixed to the nut of the Y-axis ball screw 22 in a state where the 23 is movably supported by the pair of Y-axis rails 21 and 21 in the Y direction. An X-axis ball screw 24 extending in the X direction and an X-axis motor Mx for rotationally driving the X-axis ball screw 24 are attached to the head support member 23, and the head unit 3 can move to the head support member 23 in the X direction. It is fixed to the nut of the X-axis ball screw 24 in a state of being supported by. Therefore, the Y-axis motor My may rotate the Y-axis ball screw 22 to move the head unit 3 in the Y direction, or the X-axis motor Mx may rotate the X-axis ball screw 24 to move the head unit 3 in the X direction. can.

Two component supply units 25 are arranged in the X direction on both sides of the pair of conveyors 12 and 12 in the Y direction, and a feeder mounting carriage 4 is detachably attached to each component supply unit 25. A plurality of tape feeders 5 arranged in the X direction and a plurality of reel holders 6 arranged in the X direction are detachably mounted on the feeder mounting carriage 4, and one tape feeder 5 and one reel holder are attached. 6 and 6 are associated with each other and lined up in the Y direction.

The component supply reel 7 held in each reel holder 6 has a component supply tape TP in which small pieces (chip electronic components) such as integrated circuits, transistors, and capacitors are stored at predetermined intervals. The component supply tape TP has a carrier tape for storing components in each of a plurality of pockets arranged in a row at equal pitches, and a cover tape attached to the carrier tape to cover the components in the pockets. A plurality of engaging holes arranged at regular intervals along the edge of the carrier tape TP penetrate one side thereof. As will be described later, two carrier tapes TP can be attached to each tape feeder 5, and correspondingly, each reel holder 6 holds two component supply reels 7 arranged in the Y direction. .. Then, each tape feeder 5 intermittently sends out the carrier tape TP drawn from the component supply reel 7 in the reel holder 6 adjacent to each other in the Y direction to the head unit 3 side, so that the components in the carrier tape TP are predetermined. Supply to the component supply position 50 (component supply operation).

The head unit 3 has a plurality (4) mounting heads 31 arranged in the X direction. Each mounting head 31 has a long shape extending in the Z direction (vertical direction), and parts can be sucked and held by a nozzle detachably attached to the lower end thereof. That is, the mounting head 31 moves above the tape feeder 5 and sucks the components supplied by the tape feeder 5. Subsequently, the mounting head 31 moves above the substrate B at the working position to release the adsorption of the component, thereby mounting the component on the substrate B. In this way, the mounting head 31 executes component mounting in which the components supplied to the component supply position 50 by the tape feeder 5 are taken out from the carrier tape TP and mounted on the substrate B.

FIG. 2 is a side view schematically showing an example of the configuration and operation of the tape feeder. In the figure and the following drawings, the feed direction Df (parallel to the Y direction) in which the tape feeder 5 sends out the carrier tape TP is appropriately shown, and the arrow side of the feed direction Df is "front" of the feed direction Df and the feed direction Df. The opposite side of the arrow is treated as "behind" the feed direction Df. Further, in order to distinguish between the two carrier tapes TPs that can be attached to the tape feeder 5, different reference numerals TP1 and TP2 are appropriately used for the carrier tapes in the figure and the following figures.

The tape feeder 5 includes a feeder main body 51 having a mechanical configuration and motors Mf and Mb for driving the feeder main body 51. The feeder main body 51 has a flat case 52 that is thin in the X direction and long in the feed direction Df. At the rear end of the case 52 in the feed direction Df, a tape insertion port 53a (indicated by a broken line) extending in the Z direction opens, and the above-mentioned component supply position 50 is provided on the upper surface in front of the case 52 in the feed direction Df. Has been done. In the feeder main body 51, a tape transport path 53b from the tape insertion port 53a to the component supply position 50 is provided. The feeder main body 51 supplies parts to the parts supply position 50 by sending the carrier tape TP inserted into the tape transport path 53b from the tape insertion port 53a in the feed direction Df by receiving the driving force of the motors Mf and Mb. do.

Specifically, the feeder main body 51 has a sprocket 54 arranged above the tape transport path 53b and adjacent to the tape insertion port 53a, and a gear 55 for transmitting the driving force of the motor Mb to the sprocket 54 in the case 52. The sprocket 54 rotates in response to the driving force generated by the motor Mb. Further, the feeder body 51 has a tape support member 56 that is detachably attached to the case 52. The tape support member 56 faces the sprocket 54 from below, and the carrier tape TP is sandwiched between the tape support member 56 and the sprocket 54 to engage the carrier tape TP with the sprocket 54. As a result, the sprocket 54 rotates while engaging with the carrier tape TP, so that the carrier tape TP can be sent out in the feed direction Df. Further, the feeder main body 51 has a sprocket 57 arranged at the front end portion thereof and adjacent to the tape transport path 53b from below, and a gear 58 for transmitting the driving force of the motor Mf to the sprocket 57 in the case 52. The 57 rotates in response to the driving force generated by the motor Mf. Therefore, the sprocket 57 can intermittently convey the carrier tape TP in the feed direction Df by rotating intermittently while engaging with the carrier tape TP.

Further, the feeder main body 51 has a cutter that contacts the component supply tape TP on the upstream side of the feed direction Df of the component supply position 50. This cutter exposes the parts supplied to the parts supply position 50 by cutting the cover tape of the parts supply tape TP intermittently conveyed in the feed direction Df at the center and winding it on both sides. The configuration for exposing the parts in this way is the same as that described in, for example, Japanese Patent Application Laid-Open No. 2015-053320.

Step S11 corresponds to a state in which the tape feeder 5 is used for component mounting by the mounting head 31. That is, the carrier tape TP1 is inserted into the feeder main body 51 along the tape transport path 53b, and the sprocket 57 intermittently transports the carrier tape TP1 in the feed direction Df to component the parts mounted on the substrate B. Supply to the supply position 50. Further, in step S11, the tip of the carrier tape TP2 used for component mounting next to the carrier tape TP1 is attached between the sprocket 54 and the tape support member 56. In this way, the carrier tape TP2 to be used next stands by at the rear end portion of the feeder main body 51.

As shown in step S12, when the parts in the carrier tape TP1 are used up and the tape feeder 5 discharges the carrier tape TP1, the loading shown in step S13 is executed. Specifically, the sprocket 54 starts rotating to feed the carrier tape TP2 toward the component supply position 50 in the feed direction Df, and engages the tip of the carrier tape TP2 with the sprocket 57. Subsequently, in step S14, when the operator executes the work of removing the tape support member 56 from the case 52, the carrier tape TP2 comes off the sprocket 54 and falls into the tape transport path 53b. As a result, the sprocket 57 can intermittently convey the carrier tape TP2 in the feed direction Df to supply the parts in the carrier tape TP2 to the component supply position 50. By the way, after step S14, the operator attaches the tape support member 56 to the case 52 again, so that the carrier tape TP used for component mounting next to the carrier tape TP2 is attached between the sprocket 54 and the tape support member 56. Can be made to stand by.

In the component mounting machine 1 using such a tape feeder 5, the carrier tape TP in use is inserted into the feeder main body 51 along the tape transport path 53b, while the carrier tape TP used next is tape transport. Stand by above road 53b. Then, by performing steps S12 to S14 each time the carrier tape TP is used up, the waiting carrier tape TP can be inserted into the feeder main body 51 along the tape transport path 53b and used next.

FIG. 3 is a diagram schematically showing an example of a component supply reel and a reel holder that holds the component supply reel. In FIG. 3, the parts supply reel 7 is shown through the reel holder 6. The component supply reel 7 has an axis 71 and two side plates 72 that sandwich the axis 71 from both sides, and supports the component supply tape TP wound around the axis 71 from both sides by the side plates 72. Further, the reel 7 has a reel ID 73 and a component ID 74, each of which is composed of a bar code, on the side plate 72. The reel ID 73 is unique and can be used to individually identify the component supply reel 7 to which it is attached. The part ID 74 indicates information (type, number, etc.) of the parts stored in the part supply tape TP of the part supply reel 7 to which the part ID 74 is attached. It is not always necessary to configure the reel ID 73 and the component ID 74 with separate barcodes, and these may be configured with one barcode.

The reel holder 6 can hold the component supply reel 7 at each of the used position Lu and the standby position Lw behind the feed direction Df from the used position Lu. Then, the component supply tape TP of the component supply reel 7 held at the use position Lu is loaded on the tape feeder 5 and used for component supply in component mounting, while the component supply reel 7 held at the standby position Lw The component supply tape TP is attached between the sprocket 54 of the tape feeder 5 and the tape support member 56. In this way, two component supply reels 7 can be mounted on one tape feeder 5. Note that mounting the component supply reel 7 on the tape feeder 5 means mounting the tip of the component supply tape TP pulled out from the component supply reel 7 arranged on the reel holder 6 on the tape feeder 5.

In such a configuration, when the parts of the parts supply tape TP of the parts supply reel 7 arranged at the use position Lu are used up among the two parts supply reels 7 mounted on the tape feeder 5, they are arranged at the standby position Lw. The component supply tape TP of the component supply reel 7 is loaded and used for component mounting. After one of the two component supply reels 7 is used up in this way, the operator attaches another component supply reel 7 supplied from the component storage 81 to the tape feeder 5 and waits. I can let you. Specifically, the operator
-Remove the parts supply reel 7 from which the parts have run out from the use position Lu.-Move the parts supply reel 7 used for component mounting from the standby position Lw to the use position Lu.-Place another parts supply reel 7 at the standby position Lw. -By sequentially executing the procedure of mounting the tip of the parts supply tape TP pulled out from another parts supply reel 7 between the sprocket 54 and the tape support member 56, another parts supply reel 7 is attached to the tape feeder. Can be attached to 5 (attachment work).

FIG. 4 is a block diagram showing an example of a component mounting system according to the present invention. The component mounting system 100 includes a component mounting machine 1, a component storage 81 for storing the component supply reel 7 used in the component mounting machine 1, and a production plan management device 82 for managing component mounting in the component mounting machine 1. And a parts supply management device 9 for managing the supply of parts to the parts mounting machine 1.

The parts storage 81 stores a large number of parts supply reels 7 in their respective designated storage locations. The parts storage 81 has a supply port for supplying the parts supply reel 7 and a return port for receiving the parts supply reel 7. Then, the parts storage 81 discharges the parts supply reel 7 from the storage location to the supply port in accordance with the request from the parts supply management device 9 or the operator, and the parts supply reel 7 returned by the operator to the return port is placed in the storage location. store.

The production plan management device 82 is a server computer, and manages the component mounting machine 1 based on the production plan Pp that produces a component mounting board by mounting components on the board B. Specifically, the production plan management device 82 creates board data indicating a procedure for mounting components on the board B based on the production plan Pp, and transmits the board data to the component mounting machine 1. Then, the component mounting machine 1 mounts the components on the board B according to the procedure shown in the received board data.

The parts supply management device 9 is a server computer, and includes a control unit 91, a storage unit 92, an ID reader 93, a user interface 94, and the like. The control unit 91 includes a CPU (Central Processing Unit) and a RAM (Random Access).
It is a processor composed of a memory and a ROM (Read Only Memory), and an acquisition unit 911 and a setting unit 913 are internally constructed by executing a predetermined parts supply management program. These operations will be described in detail later.

The storage unit 92 is an HDD (Hard Disk Drive) and stores the production plan Pp acquired from the production plan management device 82. Further, the storage unit 92 stores the usage history information H (FIG. 5) in which the usage history of the parts supply reel 7 is associated with the reel ID 73 of the parts supply reel 7. Here, FIG. 5 is a diagram schematically showing an example of usage history information of the parts supply reel. As shown in FIG. 5, in the usage history information H, the remaining number of parts stored in the parts supply reel 7 and the location of the parts supply reel 7 are associated with the reel ID 73.

There are two locations for the parts supply reel 7. That is, when the target parts supply reel 7 is mounted on the parts supply unit 25, the mounting location of the parts supply reel 7 on the feeder mounting carriage 4 is associated with the reel ID 73, and the target parts supply reel 7 is mounted. Is stored in the parts storage 81, the storage location of the parts supply reel 7 is associated with the reel ID 73.

The explanation will be continued by returning to FIG. The ID reader 93 is a bar code reader and is used to read the reel ID 73 and the component ID 74 attached to the component supply reel 7. The ID reader 93 may be a portable type that wirelessly communicates with the control unit 91, or may be a wired communication type that communicates with the control unit 91. Further, the user interface 94 is composed of, for example, a touch panel display, a speaker, or the like, and receives an input operation from the operator or notifies the operator. In particular, the user interface 94 functions to display the usage history information H of FIG.

Further, the component mounting machine 1 includes a control unit 18 in addition to the mechanical configuration shown in FIG. The control unit 18 is a processor composed of a CPU, RAM, and ROM, and executes control so that component mounting on the board B is executed according to the procedure shown in the board data received from the production planning management device 82. .. In particular, the control unit 18 also functions to manage the remaining number of parts in the parts supply reel 7 mounted on the tape feeder 5.

FIG. 6 is a flowchart showing an example of component remaining number management executed by the control unit of the component mounting machine. This flowchart shows the total number of remaining parts (in other words, the total number of parts held in the reel holder 6 corresponding to the tape feeder 5), which is the total number of parts remaining on the two parts supply reels 7 mounted on the tape feeder 5. ) And the remaining number of parts of the parts supply reel 7 arranged at the use position Lu, and is executed for each tape feeder 5 in parallel with the parts mounting. In step S101, it is confirmed whether the tape feeder 5 has supplied the component to the component supply position 50. Then, when the supply of parts is confirmed (“YES” in step S101), the total number of remaining parts is decremented (step S102). Further, in step S102, the remaining number of parts of the parts supply reel 7 used by the tape feeder 5 for parts supply is notified to the parts supply management device 9 together with the reel ID 73 of the parts supply reel 7, and the parts supply management device 9 receives the parts supply management device 9. The remaining number of parts associated with the reel ID 73 is updated in the usage history information H.

In step S103, it is confirmed whether, of the two parts supply reels 7, the parts of the parts supply reel 7 used for parts supply have been used up. When the parts are not used up and the parts are not cut out (when “NO” in step S103), the process returns to step S101. Whether or not the parts have been used up can be determined based on an appropriate standard. For example, when the operation for sucking the parts supplied by the tape feeder 5 is executed and the suction / holding of the parts cannot be confirmed, it is determined that a suction error has occurred. Therefore, when it is confirmed that a plurality of suction errors occur in succession, it can be determined that the parts have been used up. Alternatively, when it is confirmed that the remaining number of parts of the parts supply reel 7 arranged at the use position Lu has become zero, it can be determined that the parts have been used up. On the other hand, when a part shortage occurs (when "YES" in step S103), the control unit 18 notifies the control unit 91 of the parts supply management device 9 of the occurrence of the part shortage (step S104), and the control unit 91. Notifies the operator of the execution of the mounting operation by the user interface 94. Further, in step S104, the control unit 18 causes the tape feeder 5 to execute the loading of steps S12 to S13 of FIG. 2, and uses the next component supply reel 7 for component supply.

In step S105, the operator executes the mounting operation of the component supply reel 7 by confirming the acquisition of the reel ID 73 and the component ID 74 (hereinafter, appropriately referred to as “reel ID73, etc.”) of the component supply reel 7 to be newly mounted. Grasp how much. That is, the operator reads the reel ID 73 and the like of the parts supply reel 7 with the ID reader 93, and then mounts the parts supply reel 7 on the tape feeder 5 (mounting work). At this time, the reel ID 73 and the like are transmitted from the component supply management device 9 to the control unit 18 of the component mounting machine 1.

When the acquisition of the reel ID 73 or the like cannot be confirmed (when “NO” in step S105), the control unit 18 confirms whether the tape feeder 5 has supplied the parts to the parts supply position 50 (step S106). If the supply of parts is not confirmed (when "NO" in step S106), the process returns to step S105, and when the supply of parts is confirmed (when "YES" in step S106), the total number of remaining parts is decremented. (Step S107). Further, in step S107, the remaining number of parts of the parts supply reel 7 used by the tape feeder 5 for parts supply is notified to the parts supply management device 9 together with the reel ID 73 of the parts supply reel 7, and the parts supply management device 9 receives the parts supply management device 9. The remaining number of parts associated with the reel ID 73 is updated in the usage history information H.

In step S108, it is confirmed whether the total number of remaining parts is equal to or less than the threshold number. If the total number of remaining parts is not less than or equal to the threshold number (when “NO” in step S108), the process returns to step S105. Here, the number of thresholds is an integer of 1 or more. On the other hand, when the total number of remaining parts is equal to or less than the threshold number (when “YES” in step S108), the control unit 18 notifies the control unit 91 of the parts supply management device 9 to warn the remaining number (step). S109), the process returns to step S105. Upon receiving the notification in step S109, the control unit 91 executes the remaining number warning by the user interface 94. It should be noted that this remaining number warning requests the operator to immediately perform the mounting work because the total number of remaining parts for the target tape feeder 5 has decreased.

When the acquisition of the reel ID 73 or the like is confirmed in step S105 (when “YES” in step S105), the total number of remaining parts is updated (step S110). Specifically, the total number of remaining parts is updated by acquiring and adding the remaining number of parts indicated by the usage history information H for the acquired reel ID 73 from the parts supply management device 9. Then, the process returns to step S101. At this time, if the acquisition of the reel ID 73 or the like is confirmed in the situation where the remaining number warning is generated, the remaining number warning is canceled along with the update of the total number of remaining parts. These steps S101 to S110 are executed until the use of the tape feeder 5 in component mounting is completed.

In this way, when the parts of the parts supply reel 7 are cut off due to the execution of the parts mounting in the parts mounting machine 1, the operator executes the replenishment work of replenishing the parts by the mounting work of the parts supply reel 7. There is a need. Therefore, the component supply management device 9 sets the execution time (mounting time) of the mounting work to be executed in parallel with the component mounting for the component mounting machine 1. In particular, the mounting time is set so that the mounting work can be collectively performed on the plurality of tape feeders 5 in one replenishment work.

FIG. 7 is a flowchart showing an example of mounting time setting executed by the parts supply management device. This flowchart is executed by the acquisition unit 911 and the setting unit 913 of the control unit 91. In step S201, the acquisition unit 911 acquires the production plan Pp from the production plan management device 82 and stores it in the storage unit 92. In step S202, when the component mounting machine 1 executes the production plan Pp, the period during which the mounting work can be executed on the tape feeder 5 (mountable period) is a plurality of periods mounted on the component mounting machine 1. Each of the tape feeders is predicted by the setting unit 913.

That is, as described with reference to FIG. 3, after one of the two component supply reels 7 mounted on the tape feeder 5 and one component supply reel 7 previously fed by the sprocket 57 is used up, the subsequent component supply reel 7 is used. The parts supply tape TP from the parts supply reel 7 of the above is automatically engaged with the sprocket 57 and sent, so that the parts supply is continued. The operator can perform the mounting operation of mounting another component supply reel 7 on the tape feeder 5 while the component supply is continued in this way. Therefore, the time when one of the two component supply reels 7 is used up is calculated as the start time of the mountable period. On the other hand, as described with reference to FIG. 6, after one component supply reel 7 is used up, a remaining number warning is notified when the total number of remaining parts becomes equal to or less than the threshold number. It is preferable to carry out the mounting work on the reel. Therefore, the time when the total number of remaining parts reaches the threshold number (that is, the time when the remaining number warning is notified) is calculated as the end time of the mountable period.

The change in the number of remaining parts of the parts supply reel 7 mounted on the tape feeder 5 can be predicted based on the usage history information H and the production plan Pp. That is, the number of remaining parts (initial number of remaining parts) to be stored when the target parts supply reel 7 is attached to the parts supply reel 7 is associated with the reel ID 73 of the parts supply reel 7 in the usage history information H. It can be obtained by referring to the number of remaining parts. Then, the number of remaining parts of the parts supply reel 7 can be calculated by subtracting the number of times the parts of the parts supply reel 7 are supplied in the production plan Pp from the initial remaining number of parts. Also in the flowchart shown below, the remaining number of parts of the parts supply reel 7 is similarly calculated by appropriately referring to the usage history information H and the production plan Pp.

FIG. 8 is a diagram showing an example of a calculation result of a wearable period executed according to the flowchart of FIG. 7. In the example of FIG. 8, an example of setting the mounting time for five tape feeders 5A to 5E is shown. However, the number of target tape feeders 5 is not limited to the five in this example. In FIG. 8, the difference in state is shown by the shade of hatching, and the period of the darkest hatching corresponds to the period in which no parts are cut off on both of the two component supply reels 7, and the period of the next darkest hatching. The period corresponds to the period from the occurrence of parts shortage on one parts supply reel 7 to the notification of the remaining number warning, and the lightest hatching period corresponds to the period after the remaining number warning is notified. ..

According to the example of FIG. 8, for the tape feeders 5A, 5B, 5C, and 5D, one component supply reel 7 is cut off at time t1a, t1b, t1c, and t1d, respectively. Further, the tape feeders 5A and 5B are notified of the remaining number warning at the times t2a and t2b, respectively. As a result, in step S202, it is calculated that the attachment work can be executed for the tape feeders 5A, 5B, 5C, and 5D within the attachment period Ta, Tb, Tc, and Td, respectively.

In step S203 of FIG. 7, among the plurality of tape feeders 5, a plurality of candidate feeders having overlapping wearable periods Ta, Tb, Tc, and Td are specified by the setting unit 913. In particular, among the plurality of tape feeders 5, candidate feeders are specified so that the mountable period Ta of the tape feeder 5A to which the remaining number warning is first notified overlaps with the mountable period Ta of the other tape feeders 5. .. In this example, specifically, in the overlapping period To, since the wearable periods Ta, Tb, and Td overlap, three tape feeders 5A, 5B, and 5D are specified as candidate feeders.

In step S204, the mounting time ts is set by the setting unit 913 so as to overlap the mountable periods Ta, Tb, and Td of the candidate feeders 5A, 5B, and 5D. Specifically, the start time t1b of the overlapping period To in which the mountable periods Ta, Tb, and Td overlap, in other words, the parts of the component supply reel 7 of one of the candidate feeders 5A, 5B, and 5D is cut off at the end. The time t1b to be worn is set to the wearing time ts. In this way, the mounting time ts is standardized for the three candidate feeders 5A, 5B, and 5D, and the mounting work on these candidate feeders 5A, 5B, and 5D can be collectively executed by one replenishment work. Become. The wearing time ts does not necessarily have to match the time t1b, and may be set after the time t1b. That is, the wearing time ts can be set to an appropriate time that overlaps with the overlapping period To.

In addition, in FIG. 7 and FIG. 8, the case where one wearing time ts is set is illustrated. However, it is also possible to set a plurality of wearing times ts. That is, after setting the first mounting time ts1 as described above and assuming that the mounting work was executed at the mounting time ts1, the steps S202 to S204 are further executed as described above to execute the second mounting time. ts2 can be set. Then, by repeating these, the wearing time ts after the third time can be appropriately set.

In this way, the parts supply management device 9 predicts the mounting time ts for executing the mounting work on each tape feeder 5. Then, the wearing time ts is notified to the operator via the user interface 94. Therefore, the operator can execute the mounting operation at a timing corresponding to the mounting time ts.

By the way, some parts (appropriately referred to as "rank parts") such as LEDs mounted on the board B in the part mounting machine 1 are ranked according to their characteristics. Therefore, it is necessary to mount a rank component having a rank according to the characteristics required for the component mounting substrate B to be produced. In addition, there are various mounting modes of this rank component, such as designated mounting, adjustment mounting, mixed mounting, and the like. These mounting modes will be described with reference to the case where the LEDs are ranked in three stages of rank Ra, rank Rb, and rank Rc.

The designated mounting is a mounting mode in which a specific rank is designated. For example, when the rank Rb is designated, the LED of the rank Rb is selectively mounted. In this designated mounting, a component supply reel 7 for accommodating LEDs of a designated rank (rank Rb) is mounted on the Na tape feeder 5 used for the designated mounting (Na is an integer of 2 or more). ..

The adjustment mounting is a mounting mode in which the characteristics of other components having a correlation with the characteristics of the LED, specifically, the resistance value of the limiting resistor is adjusted according to the rank of the LED. For example, ranks Ra and Rb are arranged in descending order of brightness. , Rc, the resistance value of the limiting resistor is increased in the order of rank Ra, Rb, Rc (that is, the higher the brightness of the LED, the lower the resistance value of the limiting resistor is attached). In this adjustment mounting, of the Na tape feeders 5 used for the adjustment mounting, a component supply reel 7 for accommodating LEDs of a predetermined rank is attached to the tape feeder 5 that supplies LEDs, and a limiting resistor is provided. A component supply reel 7 for accommodating a limiting resistor having a resistance value corresponding to a predetermined rank is mounted on the tape feeder 5 for supplying the tape feeder 5.

The mixed mounting is a mounting mode in which different ranks Ra, Rb, and Rc are mixed at a predetermined mixed ratio. In this mixed mounting, the ranks of the LEDs are distributed among the Na tape feeders 5 used in the mixed mounting according to the mixing ratio, and each of these tape feeders 5 is associated with this distribution. A parts supply reel 7 for accommodating rank LEDs is mounted.

Then, Na tape feeders 5 that supply components (LEDs, limiting resistors, etc.) used for rank mounting such as designated mounting, adjustment mounting, or mixed mounting are managed in association with each other. The management of the tape feeder 5 can be executed by the control unit 91 (for example, the setting unit 913) of the parts supply management device 9.

The characteristics of the characteristic components mounted on the component mounting board B may be changed in the middle of the production plan Pp. In such a characteristic change, the operator needs to perform a characteristic change operation of changing the component supply reel 7 mounted on the tape feeder 5 that supplies the rank component. Therefore, the parts supply management device 9 stores the rank table RT (FIG. 4) associated with the parts used for rank mounting in the storage unit 92, and manages the characteristic change work using the rank table RT.

FIG. 9 is a diagram showing an example of a rank table. In particular, FIG. 9 shows the rank table RT used for the adjustment implementation. This rank table RT associates LEDs of ranks Ra, Rb, and Rc with limiting resistors having resistance values of 5 kΩ, 10 kΩ, and 15 kΩ, respectively. Therefore, when the rank of the LED in the adjustment mounting is changed from the rank Ra to the rank Rb by the characteristic change work, the parts supply reel for accommodating the LED of the rank Ra from the tape feeder 5 that supplied the LED of the rank Ra 7 is removed, and the component supply reel 7 for accommodating the LED of rank Rb is attached. Further, the component supply reel 7 for accommodating the LED having a resistance value of 5 kΩ is removed from the tape feeder 5 that has supplied the limiting resistor having a resistance value of 5 kΩ, and the component supply reel 7 accommodating the limiting resistor having a resistance value of 10 kΩ is removed. Is installed.

Then, the parts supply management device 9 manages the change time for executing the characteristic change work and the mounting time for executing the mounting work so that the operator can efficiently execute the characteristic change work and the above-mentioned mounting work. Next, this point will be described.

FIG. 10 is a flowchart showing an example of mounting time setting in consideration of the change time for executing the characteristic change work, and FIG. 11 is a diagram schematically showing an example of the arithmetic processing in the flowchart of FIG. 10 in a timing chart. The notation in FIG. 11 is similar to that in FIG.

In step S301, the acquisition unit 911 acquires the production plan Pp from the production plan management device 82 and stores it in the storage unit 92. In step S302, when the component mounting machine 1 executes the production plan Pp, the setting unit 913 predicts the change time that requires the characteristic change work. This change time is determined according to the production policy in the production plan Pp, and there are various aspects of the production policy. Specifically, the change time ct is set at a time when a planned number of component mounting boards B having predetermined characteristics are produced, or when a specific rank component stored in the component storage 81 is used up.

In step S303, the setting unit 913 searches for the tape feeder 5 whose wearable period overlaps with the change time ct (search process). In this search process, of the N tape feeders 5 (N is an integer of 4 or more) used in the component mounting machine 1, Na that are the targets of the characteristic change work at the change time ct predicted in step S302. This is executed for Nb tape feeders 5 (Nb is an integer of 2 or more) different from the tape feeder 5. Furthermore, the tape feeders 5 that are the targets of the characteristic change work at a time different from the change time tk are included in the Nb tape feeders 5 that are the targets of the search process.

In the example of FIG. 11, since the mountable periods Ta and Tb of the tape feeders 5A and 5B overlap each other, the tape feeders 5A and 5B are commonly mounted according to the flowchart of FIG. 7 executed earlier. The time ts1 is set. Similarly, since the mountable periods Tc and Td of the tape feeders 5C and 5D overlap each other, a common mounting time ts2 is set for the tape feeders 5C and 5D. Since the wearable periods Ta and Tb of the tape feeders 5A and 5B overlap with the change time tc, the tape feeders 5A and 5B are searched in the search process.

In step S304, the setting unit 913 sets the attachment time ts of the tape feeder 5 searched by the search process to the change time ct. That is, in the example of FIG. 11, the mounting time ts for the tape feeders 5A and 5B is changed from the mounting time ts1 to the change time ct. Further, the operator is notified via the user interface 94 so that the characteristic change work for the Na tape feeders 5 and the attachment work for the tape feeders 5A and 5B are executed at the change time ct.

In addition, here, the case where the flowchart of FIG. 7 is performed and then the flowchart of FIG. 10 is performed is illustrated. However, after performing the flowchart of FIG. 10, the flowchart of FIG. 7 may be performed for a tape feeder 5 other than the tape feeder 5 in which the mounting time ts is set to the change time ct in FIG.

In the embodiment described above, the change time tc that requires the characteristic change work for the Na tape feeder 5 (first feeder) is predicted based on the production plan Pp. Further, tape feeders 5A and 5B (second feeders) whose mountable periods Ta and Tb that enable mounting of the component supply reel 7 overlap with the change time ct are searched (search process). Then, the mounting time ts for the tape feeders 5A and 5B searched by the search process is set to the change time ct. Therefore, the mounting work of mounting the component supply reel 7 on the tape feeders 5A and 5B and the characteristic changing work can be collectively executed according to the change time ct. As a result, the operator can efficiently perform these operations, and the work load of the operator can be reduced.

Further, a user interface 94 (notification unit) for notifying the operator to execute the attachment work for the tape feeders 5A and 5B searched by the search process and the characteristic change work at the change time ct is provided. In such a configuration, the operator can surely execute the mounting work and the characteristic changing work according to the change time ct.

By the way, the mounting time ts for each tape feeder 5 used for rank mounting is executed according to the flowchart of FIG. 7 as described above. However, the change time ct is also set for the tape feeder 5. Therefore, for example, it may not be rational to perform the mounting work at the mounting time ts because the change time ct is set immediately after the mounting time ts. Subsequently, a configuration that can preferably cope with such a case will be described.

FIG. 12 is a flowchart showing an example of determining a mounting mode for a tape feeder used for rank mounting, and FIG. 13 is a diagram schematically showing an example of arithmetic processing in the flowchart of FIG. 12 in a timing chart. .. The mounting mode determination shown in these is executed by the setting unit 913 of the control unit 91.

In the timing chart of FIG. 13, the total number of remaining parts for the tape feeder 5 used for rank mounting is on the vertical axis, and the time is on the horizontal axis. The change in the total number of remaining parts with the execution of is shown. The rate at which the parts are used (the number of parts supplied per unit time) differs depending on the type of the substrates B1 to B4. Therefore, every time the boards B1 to B4 to be produced are changed, the usage rate of the parts, that is, the inclination of the timing chart changes.

As shown in FIG. 13, at time t1, the preceding component supply reel 7 used first among the two component supply reels 7 mounted on the tape feeder 5 is used up, and the mountable period T starts. .. At this time t1, the preceding component supply reel 7 is no longer mounted on the tape feeder 5, and the component supply tape TP is discharged from the tape feeder 5. Further, after the time t1, the subsequent component supply reel 7 to be used later among the two component supply reels 7 will be used.

In step S401, the change time tc set as described above is acquired. In the example of FIG. 13, since the rank of the rank component is changed as the production type is switched from the substrate B3 to the substrate B4, the change time ct is set at the time of switching the production type. In step S402, it is predicted whether, of the two component supply reels 7 mounted on the target tape feeder 5, the preceding component supply reel 7 used earlier will run out of components before the change time tc. Will be done.

When the parts are not cut off (when "NO" in step S402), the subsequent parts supply reel 7 which stands by while being mounted on the tape feeder 5 is not used until the change time ct, and the change time ct is not used. Will be removed at. Therefore, in step S403, it is determined that the subsequent component supply reel 7 is removed from the target tape feeder 5 before the change time ct. Then, the content of the decision in step S403 is notified to the operator via the user interface 94.

On the other hand, when the parts are cut off (when “YES” in step S402), the total number of remaining parts Qt1 (FIG. 13) at the start time t1 of the mountable period T is the target. Predicted for tape feeder 5 (step S404). Further, the number of parts Qtc (FIG. 13) to be supplied is predicted by the target tape feeder 5 from the time t1 to the change time ct (step S405).

In step S406, based on the prediction results in steps S404 and S405, it is predicted whether or not the subsequent parts supply reel 7 will run out of parts by the change time ct. Specifically, if the planned supply quantity Qtc is larger than the total number of remaining parts Qt1, it is determined that the parts will be cut off, and if the planned supply quantity Qtc is equal to or less than the total number of remaining parts Qt1, it is determined that the parts will not be cut off.

Then, when the parts are cut off (when “YES” in step S406), it is determined that the mounting operation is executed for the target tape feeder 5 in the mounting enable period T (step S407). On the other hand, if the parts are not cut off (“NO” in step S406), it is determined not to execute the mounting operation on the tape feeder 5 (step S408). Then, the determination contents in steps S407 and S408 are notified to the operator via the user interface 94.

In the embodiment described above, the mounting time ts is set so as to overlap with the mountable period T of a plurality of candidate feeders 5 among the N tape feeders 5 used for component mounting in the component mounting machine 1. The tape feeder 5 used for rank mounting, which is included in the plurality of candidate feeders 5, is set in the mountable period T based on the number of parts Qtc to be supplied by the change time ct and the total number of remaining parts Qt1. Whether or not the mounting work is necessary is determined. In such a configuration, the occurrence of mounting work for mounting the unnecessary parts supply reel 7 with respect to the production plan Pp can be suppressed, and the work load of the operator can be reduced.

Further, among the component supply reels 7 mounted on the tape feeder 5 used for rank mounting, the setting unit selects the component supply reel 7 which is not expected to be used by the tape feeder 5 until the change time ct from the change time ct. It is determined that it will be removed from the tape feeder 5 before. In such a configuration, the amount of work in the change time ct can be reduced, and the work load of the operator can be reduced.

As described above, in the present embodiment, the component mounting system 100 corresponds to an example of the "component mounting system" of the present invention, the component mounting machine 1 corresponds to an example of the "component mounting machine" of the present invention, and the component supply management device. 9 corresponds to an example of the "parts supply management device" of the present invention, the acquisition unit 911 corresponds to an example of the "acquisition unit" of the present invention, and the setting unit 913 corresponds to an example of the "setting unit" of the present invention. , The parts supply reel 7 corresponds to an example of the "parts storage member" of the present invention, the tape feeder 5 corresponds to an example of the "feeder" of the present invention, and the Na tape feeder 5 corresponds to the "Na pieces" of the present invention. It corresponds to an example of the "first feeder", the Nb tape feeder 5 corresponds to an example of the "Nb second feeder" of the present invention, and the candidate feeder 5 corresponds to an example of the "candidate feeder" of the present invention. , Substrate B corresponds to an example of the "board" of the present invention, production plan Pp corresponds to an example of the "production plan" of the present invention, and mounting times ts, ts1 and ts2 correspond to an example of the "mounting time" of the present invention. Corresponds to, the wearable period T corresponds to an example of the "wearable period" of the present invention, step S302 corresponds to an example of the "prediction process" of the present invention, and step S303 corresponds to the "search process" of the present invention. The user interface 94 corresponds to an example of the "notifying unit" of the present invention.

The present invention is not limited to the above embodiment, and various modifications can be made to the above as long as it does not deviate from the gist thereof. For example, in the above embodiment, the timing of executing each process such as setting the wearing time and determining the wearing mode is not particularly described, but the process can be executed at various timings. Specifically, the process may be executed before the production plan Pp is started, or the process may be executed for the next mounting work or characteristic change work each time the mounting work is executed. Alternatively, each time the change time ct is executed, the process may be executed for the next characteristic change work or mounting work.

Further, the number of component supply reels 7 that can be mounted on one tape feeder 5 is not limited to two, and may be, for example, three or more.

The type of feeder is not limited to the tape feeder, and may be a tray feeder or a stick feeder.

Further, the target parts for ranking are not limited to LEDs. For example, when the photoelectric elements are ranked according to their characteristics and used, the above embodiment can be similarly applied.

Further, in the characteristic change work of the above embodiment, an example of executing the characteristic change work of collectively changing the component supply reels 7 mounted on the Na tape feeders 5 has been given. However, the present invention can also be applied to the case of executing the characteristic change work of changing the component supply reel 7 mounted on the single tape feeder 5 for supplying the rank component.

In this example, the change time ct that requires the characteristic change work for the single tape feeder 5 (first feeder) that supplies the rank parts is predicted based on the production plan Pp. Further, another tape feeder 5 (second feeder) whose mountable period T during which the component supply reel 7 can be mounted overlaps with the change time tk is a plurality of tape feeders 5 used in the component mounting machine 1. It is searched from our house (search process). Then, the mounting time ts for the other tape feeder 5 is set to the change time ct.

Therefore, the mounting work of mounting the component supply reel 7 on the other tape feeder 5 and the characteristic change work of the tape feeder 5 for supplying the rank parts can be collectively executed according to the change time ct. As a result, the operator can efficiently perform these operations, and the work load of the operator can be reduced.

1 ... Parts mounting machine 100 ... Parts mounting system 5 ... Tape feeder (feeder)
7 ... Parts supply reel (parts storage member)
9 ... Parts supply management device 911 ... Acquisition unit 913 ... Setting unit 94 ... User interface (notification unit)
B ... Substrate Pp ... Production plan ts, ts1, ts2 ... Mounting time T ... Mountable period S302 ... Prediction processing S303 ... Search processing

Claims (7)

An acquisition unit that acquires a production plan for producing a component mounting board by mounting components on a board using a plurality of feeders that supply components from the component storage members by using a plurality of mounted component storage members in order.
The mountable period is the period from when one of the plurality of component storage members is cut off until the total number of remaining components, which is the total number of components remaining in the plurality of component storage members, decreases to a predetermined number. Regarding the feeder, based on the result predicted from the production plan, a setting unit for setting a mounting time indicating the timing of mounting work for mounting another component storage member on the feeder after the component of the one component storage member is cut off is provided. Prepare,
The plurality of feeders include a first feeder and a second feeder different from the first feeder.
Based on the production plan, the setting unit predicts a change time that requires a characteristic change work for changing the component storage member mounted on the first feeder in order to change the characteristics of the component mounted on the board. The prediction process and the search process for searching for the second feeder whose wearable period is predicted to overlap with the change time are executed, and the mounting time for the second feeder searched by the search process is calculated. A parts supply management device set to the change time. The plurality of feeders include a plurality of first feeders in which the component storage members mounted on the respective feeders are associated with each other according to the characteristics of the components mounted on the substrate.
In the prediction process, the setting unit needs the characteristic change work of changing the component storage member mounted on all of the plurality of first feeders in order to change the characteristic of the component mounted on the board. The parts supply management device according to claim 1, wherein the change time is predicted based on the production plan. The component supply according to claim 1 or 2, further comprising a notification unit that notifies the operator to execute the mounting work on the second feeder searched by the search process and the characteristic changing work at the changing time. Management device. The setting unit sets the mounting time by overlapping the wearable period of the plurality of candidate feeders among the plurality of feeders, and the change time of the first feeder included in the plurality of candidate feeders. The parts supply management device according to any one of claims 1 to 3, which determines whether or not to execute the mounting operation based on the number of parts to be supplied up to and the total number of remaining parts. Among the component storage members mounted on the first feeder, the setting unit uses the component storage member, which is expected not to be used by the first feeder until the change time, before the change time. The parts supply management device according to any one of claims 1 to 4, which is determined to be removed from. A component mounting board is produced by mounting components on a board using N feeders (N is an integer of 4 or more) that supplies components from the component storage members by using a plurality of mounted component storage members in order. A component mounting machine that executes the production plan,
A component mounting system including the component supply management device according to any one of claims 1 to 5. A process of acquiring a production plan for producing a component mounting board by mounting a component on a board using a plurality of feeders that supply components from the component storage member by using a plurality of mounted component storage members in order.
The mountable period is the period from when one of the plurality of component storage members is cut off until the total number of remaining components, which is the total number of components remaining in the plurality of component storage members, decreases to a predetermined number. The feeder is provided with a step of setting a mounting time indicating the timing of mounting work for mounting another component storage member on the feeder after the component of the one component storage member is cut, based on the result predicted from the production plan. ,
The plurality of feeders include a first feeder and a second feeder different from the first feeder.
In the step of setting the mounting time, the production requires a characteristic change work for changing the component storage member mounted on the first feeder in order to change the characteristics of the component mounted on the board. The prediction process for predicting based on the plan and the search process for searching for the second feeder whose wearable period is predicted to overlap with the change time are executed, and the second feeder searched by the search process is performed. A parts supply management method for setting the mounting time to the change time.

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