Production planning device and production planning method

Abstract

To provide a production planning device and a production planning method that can create a production plan for efficiently producing double-sided mounting boards.SOLUTION: A production plan is acquired in which the production of multiple types of mounted boards is planned using a production unit that mounts components on the front side of multiple boards of one type and a production unit that mounts components on the back side of multiple boards of one type (ST1), and groups are created by grouping the multiple production units included in the acquired production plan on the basis of at least one of a changeover of the production equipment or a model change (ST2, ST3), and a modified production plan is created in which the production sequence of the production units in the production plan is modified on the basis of the created groups (ST7).SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to a production plan creation device and a production plan creation method for creating a production plan for producing mounting substrates of a plurality of varieties.

Background Art

[0002] After mounting components on one side of a substrate in one lane of a component mounting line including a component mounter, the substrate is turned over and re-fed into the lane, and components are mounted on the other side to produce a double-sided mounting substrate. A method is known (see, for example, Patent Document 1). Patent Document 1 discloses a production plan display method for linking and displaying the production plans for one side and the other side of a double-sided mounting substrate among production plans for producing mounting substrates of a plurality of varieties in a plurality of lanes.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the prior art including Patent Document 1, although the relationship of double-sided mounting substrates included in the established production plan can be visualized, the productivity of the established production plan for double-sided mounting substrates cannot be further improved, and there is room for further improvement in order to efficiently produce double-sided mounting substrates.

[0005] Therefore, an object of the present invention is to provide a production plan creation device and a production plan creation method capable of creating a production plan capable of efficiently producing double-sided mounting substrates.

Means for Solving the Problems

[0006] The production plan creation device of the present invention is a production plan creation device for creating a production plan for producing mounting substrates of a plurality of product types in one lane of a component mounting line, comprising: a production unit for mounting components on the first surface of a plurality of substrates of one product type; an acquisition unit for acquiring a production plan in which the production of the mounting substrates of the plurality of product types is planned by production units for mounting components on the second surface opposite to the first surface of the plurality of substrates of the one product type; a group creation unit for creating a group by grouping a plurality of the production units included in the acquired production plan based on at least one of a setup change or a model change of the production devices constituting the lane; and a changed production plan creation unit for creating a changed production plan in which the production order of the production units in the production plan is changed based on the created group.

[0007] The production plan creation method of the present invention is a production plan creation method for creating a production plan for producing mounting substrates of a plurality of product types in one lane of a component mounting line, comprising: acquiring a production plan in which the production of the mounting substrates of the plurality of product types is planned by a production unit for mounting components on the first surface of a plurality of substrates of one product type and a production unit for mounting components on the second surface opposite to the first surface of the plurality of substrates of the one product type; creating a group by grouping a plurality of the production units included in the acquired production plan based on at least one of a setup change or a model change of the production devices constituting the lane; and creating a changed production plan in which the production order of the production units in the production plan is changed based on the created group.

Effect of the Invention

[0008] According to the present invention, it is possible to create a production plan that can efficiently produce double-sided mounting substrates.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0010] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The configurations, shapes, etc. described below are examples for explanation, and can be appropriately changed according to the specifications of the component mounting line, management computer, component mounting device, etc. In the following, corresponding elements in all the drawings are denoted by the same reference numerals, and redundant explanations are omitted. In FIG. 2 and some parts described later, as two axes orthogonal to each other in the horizontal plane, the X-axis in the substrate transfer direction (the direction perpendicular to the paper surface in FIG. 2) and the Y-axis orthogonal to the substrate transfer direction (the left-right direction in FIG. 2) are shown. In FIG. 2 and some parts described later, the Z-axis (the up-down direction in FIG. 2) is shown as the height direction orthogonal to the horizontal plane.

[0011] First, referring to FIG. 1, the configuration of the component mounting line 1 will be described. Production apparatuses such as a printing apparatus M1, component mounting apparatuses M2 to M4, and a reflow apparatus M5 are connected in series from the upstream (left side of the paper surface) to the downstream (right side of the paper surface) in the substrate conveyance direction. Each production apparatus is connected to a management computer 3 via a communication network 2. Each production apparatus includes a substrate conveyance mechanism 4 that conveys the substrate B from the upstream to the downstream. The substrate conveyance mechanisms 4 of adjacent production apparatuses are connected to form a lane L that conveys the substrate B from the upstream to the downstream of the component mounting line 1.

[0012] The component mounting line 1 has a function of processing the substrate B carried into the printing apparatus M1 from the upstream of the lane L in order while performing processing in each production apparatus, and mounting the component D on the substrate B to produce a mounted substrate. Note that the component mounting line 1 is a group of production apparatuses connected via the communication network 2, and the production apparatuses may not be physically connected to each other. For example, a configuration in which a transfer robot transfers the substrate B between the production apparatuses may be employed. Each production apparatus includes a width adjustment mechanism 12 (see, for example, FIG. 2) that changes the conveyance width of the substrate conveyance mechanism 4. When changing the type of the mounted substrate produced on the component mounting line 1, the conveyance width of the substrate conveyance mechanism 4 is changed by the width adjustment mechanism 12 of each production apparatus according to the width of the mounted substrate to be produced (the width of the substrate B to be conveyed).

[0013] In FIG. 1, the printing apparatus M1 executes a solder printing operation of printing solder such as solder paste through a mask in which a plurality of openings are formed at the positions of the electrodes E (lands) of the substrate B carried in from the upstream by a solder printing operation unit. When changing the type of the mounted substrate to be produced, in the printing apparatus M1, a setup change to replace the mask corresponding to the type, a change to the control unit program corresponding to the type, and a model change to change the conveyance width of the substrate conveyance mechanism 4 to match the width of the substrate B are executed.

[0014] Component mounting devices M2 to M4 perform component mounting operations of mounting components D on a substrate B on which solder has been printed by a component mounting work section. Note that the component mounting line 1 is not limited to a configuration of three component mounting devices M2 to M4, and the number of component mounting devices M2 to M4 may be one or two, or four or more.

[0015] In FIG. 1, the reflow device M5 heats the substrate B carried into the device by the substrate transport mechanism 4 while transporting it, melts the solder by the substrate heating section, and performs a substrate heating operation (reflow) of joining the terminals or bumps of the component D to the electrodes E of the substrate B with the solder. When changing the variety of the mounting substrate to be produced, in the reflow device M5, a model change is executed in which the control unit program corresponding to the variety is changed and the transport width of the substrate transport mechanism 4 is changed to match the width of the substrate B.

[0016] The management computer 3 executes processes such as production management of the mounting substrate manufactured on the component mounting line 1, creation and transmission of programs and data used in each production device. Further, the management computer 3 also functions as a production plan creation device that creates a production plan for producing a plurality of varieties of mounting substrates on the component mounting line 1.

[0017] Here, with reference to FIG. 1, a method of producing a double-sided mounting substrate in which components D are mounted on both the front surface Bt and the back surface Bb (the surface opposite to the front surface Bt) of the substrate B on the component mounting line 1 will be described. In the present embodiment, among the surfaces of the double-sided mounting substrate, the surface Bt on which the component D is first mounted is referred to as the front surface Bt, and the surface Bb on which the component D is later mounted is referred to as the back surface Bb. When producing a double-sided mounting substrate, first, the substrate B is inserted into the lane L from the upstream with the front surface Bt facing upward. Next, solder is printed on the electrodes E of the front surface Bt by the printing device M1, the component D is mounted on the front surface Bt by the component mounting devices M2 to M4, and the component D is joined to the electrodes E of the front surface Bt by the reflow device M5.

[0018] Next, the substrate B with the component D mounted on the surface Bt is turned upside down so that the back surface Bb faces upward and is fed into the lane L from upstream. Next, solder is printed on the electrode E of the back surface Bb by the printing device M1, the component D is mounted on the back surface Bb by the component mounting devices M2 to M4, and the component D is joined to the electrode E of the back surface Bb by the reflow device M5. In this way, a double-sided mounting substrate with the component D mounted on both sides (the front surface Bt and the back surface Bb) of the substrate B is produced by the component mounting line 1 having one lane L.

[0019] Next, with reference to FIG. 2, the details of the configuration of the component mounting devices M2 to M4 included in the component mounting line 1 will be described. FIG. 2 schematically shows the component mounting devices M2 to M4. At the center of the base 11, a substrate transfer mechanism 4 is arranged along the X-axis in the substrate transfer direction. The substrate transfer mechanism 4 includes a pair of conveyors that support and transfer the substrate B from below. The interval (transfer width) between the pair of conveyors is changed by a width adjustment mechanism 12 arranged on the base 11.

[0020] The substrate transfer mechanism 4, in which the interval between the pair of conveyors is changed according to the width of the substrate B to be transferred by the width adjustment mechanism 12, transfers and positions the substrate B carried in from upstream to the component mounting operation position. Further, the substrate transfer mechanism 4 discharges the substrate B for which the component mounting operation has been completed downstream. Between the pair of conveyors of the substrate transfer mechanism 4 on the base 11, a substrate receiving mechanism 13 that receives the substrate B carried into the component mounting operation position from below is arranged. The substrate B is held by the substrate receiving mechanism 13 receiving the substrate B carried into the component mounting operation position and lifting it upward.

[0021] In FIG. 2, on both sides in the Y-axis direction of the substrate transfer mechanism 4 on the base 11, carriages 14 having a plurality of tape feeders 15 arranged along the X-axis on the upper surface are mounted. The tape feeder 15 supplies the component D to the suction position where the mounting head 16 sucks the component D by pitch-feeding the carrier tape storing the component D in the direction from the outside toward the substrate transfer mechanism 4. The carriage 14 is detachable from the base 11.

[0022] On a frame portion (not shown) supported by the base 11, a head moving mechanism 17 is arranged along the Y-axis orthogonal to the substrate conveyance direction. The head moving mechanism 17 has a mounting head 16 mounted via a moving member 17a. A nozzle 18 for sucking and holding the component D is mounted below the mounting head 16. By driving the head moving mechanism 17, the mounting head 16 moves in the X-axis direction and the Y-axis direction.

[0023] In FIG. 2, each part of the component mounting apparatuses M2 to M4 is controlled by a control unit 19 provided in the component mounting apparatuses M2 to M4. A plurality of mounting programs, which are control programs for controlling each part of the component mounting apparatuses M2 to M4 corresponding to the types of the mounting substrates, are stored in a storage unit provided in the control unit 19. The mounting programs are created by the management computer 3 corresponding to the types of the mounting substrates to be produced. In the case of a double-sided mounting substrate, a mounting program for mounting components on the front surface Bt and a mounting program for mounting components on the back surface Bb are used respectively.

[0024] The control unit 19 controls each part based on the mounting program corresponding to the mounting substrate to be produced, or based on the mounting program corresponding to the front surface Bt or the back surface Bb in the case of a double-sided mounting substrate. Thereby, the mounting head 16 moves between the tape feeder 15 and the substrate B positioned and held at the mounting operation position, sucks and takes out the component D supplied to the suction position by the tape feeder 15 by the nozzle 18 provided below, and the component mounting operation of mounting on the mounting position of the substrate B is executed.

[0025] In FIG. 2, when changing the mounting substrate produced in the component mounting apparatuses M2 to M4 or the mounting surface (front surface Bt or back surface Bb) of the mounting substrate, setup change and model change are executed. In the setup change, a setup operation of replacing the carriage 14, the tape feeder 15, the mounting head 16, the nozzle 18, etc. mounted on the component mounting apparatuses M2 to M4 is executed. In the model change, a conveyance width change operation by a width adjustment mechanism 12 for changing the conveyance width of the substrate B conveyed by the conveyance width of the substrate conveyance mechanism 4 in accordance with the width, and a mounting program change operation for changing the mounting program used by the control unit 19 are executed.

[0026] Incidentally, so-called common arrangements are made in advance to place tape feeders 15 or the like so that components can be mounted on different types of mounting substrates or mounting surfaces. When changeover work is unnecessary when changing the type of mounting substrate to be produced, etc., the changeover is omitted. Also, when the width of substrate B does not change before and after changing the type of mounting substrate to be produced, etc., the work of changing the conveyance width is omitted among the model changes.

[0027] Next, with reference to FIG. 3, the configuration of the information processing system of the management computer 3 will be described. Here, among the plurality of functions provided by the management computer 3, the configuration related to the function as a production plan creation device that creates a production plan for producing double-sided mounting substrates of a plurality of types on one lane L of the component mounting line 1 will be described.

[0028] The management computer 3 includes a processing device 20, a storage unit 25 which is a storage device, an input unit 29, a display unit 30, and a communication unit 31. The processing device 20 is a data processing device such as a CPU, and includes an acquisition unit 21, a group creation unit 22, a changed production plan creation unit 23, and a display processing unit 24 as internal processing units. The storage unit 25 stores production plan information 26, group information 27, changed production plan information 28, and the like. Note that the management computer 3 does not necessarily have to be configured by a single computer, and may be configured by a plurality of devices. For example, all or part of the storage unit 25 and the processing device 20 may be provided in the cloud.

[0029] In FIG. 3, the input unit 29 is an input device such as a keyboard, a touch panel, or a mouse, and is used when operating commands or data are input. The display unit 30 is a display device such as a liquid crystal panel, and displays various data stored in the storage unit, and also displays various information such as an operation screen and an input screen for the operation by the input unit 29. The communication unit 31 is a communication interface, and performs data transmission and reception with the production devices (printing device M1, component mounting devices M2 to M4, reflow device M5) that constitute the component mounting line 1 via the communication network 2.

[0030] The production plan information 26 stores a production plan created by a production plan creation unit or a production plan creation device (not shown) provided in the management computer 3 for producing mounting substrates of a plurality of types in one lane L of the component mounting line 1 for a predetermined period (for example, one month). The production plan information 26 also includes a production plan in which the production of mounting substrates of a plurality of types is planned by a production unit for mounting components on the front surface Bt (first surface) of a plurality of substrates B of one type and a production unit for mounting components on the back surface Bb (second surface) of a plurality of substrates B of one type.

[0031] In FIG. 3, the acquisition unit 21 acquires a production plan for a specified period (designated period) from the production plan information 26. The designated period is specified, for example, using a production plan selection screen that the display processing unit 24 causes the display unit 30 to display. The acquisition unit 21 also acquires the upper limit number of substrates for batch production on the component mounting line 1. The upper limit number is set, for example, using a production plan change screen that the display processing unit 24 causes the display unit 30 to display.

[0032] The upper limit number of substrates for batch production is set in consideration of the upper limit number of intermediate inventories generated during the production of mounting substrates on the component mounting line 1. For example, a double-sided mounting substrate with components mounted on the front surface Bt and waiting for component mounting on the back surface Bb becomes an intermediate inventory. Creating a production plan to allow a certain amount of intermediate inventory and produce double-sided mounting substrates can improve production efficiency. However, if the intermediate inventory is too large, there is a drawback that a large storage space for storing the intermediate inventory is required.

[0033] In FIG. 3, the group creation unit 22 creates a group obtained by grouping a plurality of production units included in the production plan acquired by the acquisition unit 21 based on at least one of the changeover of the production apparatuses (printing apparatus M1, component mounting apparatuses M2 to M4, reflow apparatus M5) constituting one lane L of the component mounting line 1 or the model changeover. The created group is stored in the storage unit 25 as group information 27.

[0034] The group creation unit 22 creates a group by grouping a plurality of production units that do not require setup change. Further, the group creation unit 22 creates a group by grouping a plurality of production units that do not require model change. Further, after the group creation unit 22 creates a group by grouping a plurality of production units that do not require setup change, the group creation unit 22 can further create a subgroup by grouping a plurality of production units that do not require model change. Note that the group creation unit 22 creates a group within a range where the total number of substrates B of the plurality of production units does not exceed the upper limit number.

[0035] In FIG. 3, the changed production plan creation unit 23 creates a changed production plan in which the production order of production units in the production plan is changed based on the group created by the group creation unit 22. The created changed production plan is stored in the storage unit 25 as changed production plan information 28. Specifically, the changed production plan creation unit 23 creates a changed production plan in which a plurality of production units included in the group are consecutive.

[0036] Next, referring to FIG. 4, the process of creating the changed production plan will be described step by step. First, the acquisition unit 21 acquires the production plan for the specified period from the production plan information 26. FIG. 4(a) shows an example of the production plan for the specified period acquired by the acquisition unit 21. This example is a production plan created to produce double-sided mounting substrates of product type F in orders of 100 pieces twice and 50 pieces once, double-sided mounting substrates of product type G in orders of 100 pieces twice and 50 pieces once, and double-sided mounting substrates of product type H in orders of 100 pieces twice and 50 pieces once, and to produce double-sided mounting substrates for each order in the order of the orders.

[0037] Also, in this example, the component mounting devices M2 to M4 have a common arrangement for mounting components on the front surface Bt and the back surface Bb of the product type F, and the production order is such that the production unit P of the back surface Bb of the product type F is executed after the production unit P of the front surface Bt of the product type F. Therefore, when changing the configuration of the component mounting devices M2 to M4 to correspond to the front surface Bt to the back surface Bb, no setup change occurs, and only the model change is executed. That is, it is a production plan with a small number of setup changes and high productivity. The same applies to product types G and H, and detailed explanations are omitted.

[0038] Next, the grouping unit 22 executes grouping based on the setup change. In FIG. 4(b), the production units P that do not require setup changes are grouped. Specifically, a group Q1 grouped by the production units P of the front surface Bt and the back surface Bb of the product type F with a common arrangement, a group Q2 grouped by the production units P of the front surface Bt and the back surface Bb of the product type G with a common arrangement, and a group Q3 grouped by the production units P of the front surface Bt and the back surface Bb of the product type H with a common arrangement are created.

[0039] Next, the grouping unit 22 executes grouping based on the model change. In FIG. 4(c), each of the groups Q1, Q2, and Q3 is grouped into production units P that do not require model changes. Specifically, in group Q1, a subgroup R1 grouped by the production unit P of the front surface Bt and a subgroup R2 grouped by the production unit P of the back surface Bb are created. Similarly, in group Q2, a subgroup R3 and a subgroup R4 are created, and in group Q3, a subgroup R5 and a subgroup R6 are created.

[0040] In FIG. 4(c), next, the grouping unit 22 determines whether the total number of substrates B of the plurality of production units P of the created subgroups R1 to R6 exceeds the upper limit number. In this example, the upper limit number is set to 150 sheets. The total number of substrates B of each of the subgroups R1 to R6 is 250 sheets, exceeding the upper limit number of 150 sheets. Therefore, the grouping unit 22 divides the groups Q1 to Q3 within a range that does not exceed the upper limit number.

[0041] Figure 4(d) shows the production plan with changes created by the production unit order change section 23 after the group creation section 22 divides groups Q1 to Q3 to create groups Q4 to Q9. Specifically, in group Q4, a plan for the production order of production unit P1 for mounting components on the front surface Bt of 100 substrates B of product type F and production unit P2 for mounting components on the back surface Bb of 100 substrates B of product type F is created.

[0042] In this case, the total number of substrates B for production unit P is 100, which does not exceed the upper limit. Also, no setup change occurs due to the switch from the front surface Bt to the back surface Bb. As a result, a production plan with changes is created that can efficiently produce double-sided mounting substrates with few setup changes. Similarly, in group Q5, a production plan with changes is created to efficiently produce 100 double-sided mounting substrates of product type G, and in group Q6, a production plan with changes is created to efficiently produce 100 double-sided mounting substrates of product type H.

[0043] In Figure 4(d), in group Q7, a plan is created in which subgroups R7 and R8 of product type F are executed in this order. In subgroup R7, a plan for the production order of production unit P3 for mounting components on the front surface Bt of 100 substrates B of product type F and production unit P4 for mounting components on the front surface Bt of 50 substrates B of product type F is created. In subgroup R8, a plan for the production order of production unit P5 for mounting components on the back surface Bb of 100 substrates B of product type F and production unit P6 for mounting components on the back surface Bb of 50 substrates B of product type F is created.

[0044] The total number of substrates B of production unit P in subgroup R7 and subgroup R8 is 150 sheets, which does not exceed the upper limit. Also, no setup change occurs between production unit P3 and production unit P4 within subgroup R7, and between production unit P5 and production unit P6 within subgroup R8. As a result, a change production plan is created that can efficiently produce double-sided mounting substrates with few model switches. Similarly, in group Q8, a change production plan is created to efficiently produce 150 double-sided mounting substrates of product type G, and in group Q9, a change production plan is created to efficiently produce 150 double-sided mounting substrates of product type H.

[0045] In this way, the group creation unit 22 creates a first group (subgroup R7) including a first production unit (production unit P3) and a second production unit (production unit P4) for mounting components on the first surface (surface Bt) of the substrate B of the first product type (product type F), and a second group (subgroup R8) including a third production unit (production unit P5) and a fourth production unit (production unit P6) for mounting components on the second surface (back surface Bb) of the substrate of the first product type. Then, the change production plan creation unit 23 creates a change production plan in which the first production unit and the second production unit are continuous, and the third production unit and the fourth production unit are continuous. Furthermore, the change production plan creation unit 23 creates a change production plan in which the first group and the second group are continuous (group Q7).

[0046] Note that when the production deadline information has the production deadline set for each order, the change production plan creation unit 23 creates a change production plan in which the production order of production unit P is changed based on the production deadline information so that each order does not exceed the production deadline. Also, when the component mounting devices M2 to M4 have a common arrangement for component mounting on the surface Bt (first surface) of product type F (first product type) and the surface Bt (first surface) of product type G (second product type), and a different common arrangement for component mounting on the back surface Bb (second surface) of product type F (first product type) and the back surface Bb (second surface) of product type G (second product type), the group creation unit 22 and the change production plan creation unit 23 perform the processing as follows.

[0047] That is, when no setup change is required between the first production unit that mounts components on the first surface (surface Bt) of the substrate B of the first product type (product type F) and the second production unit that mounts components on the first surface (surface Bt) of the substrate B of the second product type (product type G), the group creation unit 22 creates a first group including the first production unit and the second production unit. Further, when no setup change is required between the third production unit that mounts components on the second surface (back surface Bb) of the substrate B of the first product type (product type F) and the fourth production unit that mounts components on the second surface (back surface Bb) of the substrate B of the second product type (product type G), the group creation unit 22 creates a second group including the third production unit and the fourth production unit.

[0048] Then, the changed production plan creation unit 23 creates a changed production plan in which the first production unit and the second production unit of the first group are continuous, the third production unit and the fourth production unit of the second group are continuous, and further the first group and the second group are continuous.

[0049] Next, with reference to FIG. 5, an example of the production plan selection screen 40 displayed on the display unit 30 by the display processing unit 24 will be described. On the production plan selection screen 40, a production plan display frame 41, a cancel button 42, and a selection button 43 are displayed. In the production plan display frame 41, the production plan for a predetermined period included in the production plan information 26 is displayed. In this example, the production plan for the period from December 18th to December 22nd is displayed.

[0050] The operator operates the input unit 29 to display a selection range 44 in the production plan display frame 41 and specifies the range of the specified period for changing the production plan. In this example, the production plan for December 21st is specified. When the cancel button 42 is operated, the specification of the selection range 44 is canceled. When the selection button 43 is operated, the acquisition unit 21 acquires the production plan for the specified period specified by the selection range 44 from the production plan information 26.

[0051] Note that the production plan selection screen 40 may be configured such that, without providing a cancel button 42, when an area outside the production plan display frame 41 is operated (clicked), the designation of the selection range 44 is canceled. Further, the production plan selection screen 40 may be configured such that, without providing a selection button 43, when a predetermined operation (right click) is performed after selecting the range of the designated period by the selection range 44 in the production plan display frame 41, a button (pair batch production adjustment button) is displayed.

[0052] Next, with reference to FIG. 6, an example of the production plan change screen 45 displayed by the display processing unit 24 on the display unit 30 will be described. The production plan change screen 45 displays an original production plan display frame 46, a maximum number of sheets setting frame 47, a changed production plan display frame 48, a back button 49, a decision button 50, and a setting button 51. The original production plan display frame 46 displays the production plan for the designated period selected on the production plan selection screen 40. In this example, the production plan for December 21 is displayed.

[0053] In the maximum number of sheets setting frame 47, the maximum number of sheets for batch production used in creating the changed production plan is set. When the operator operates the input unit 29 to set the maximum number of sheets using the increment / decrement buttons of the maximum number of sheets setting frame 47 and then operates the setting button 51, the acquisition unit 21 acquires the maximum number of sheets set in the maximum number of sheets setting frame 47 as the maximum number of sheets for batch production. Further, when the setting button 51 is operated, the creation of groups by the group creation unit 22 and the creation of a changed production plan based on the created groups and the maximum number of sheets by the changed production plan creation unit 23 are executed.

[0054] In FIG. 6, the changed production plan display frame 48 displays the changed production plan created by the changed production plan creation unit 23. Each time the maximum number of sheets set in the maximum number of sheets setting frame 47 is changed and the setting button 51 is operated, the changed production plan is recreated and displayed in the changed production plan display frame 48. When the back button 49 is operated, the created changed production plan is not stored in the storage unit 25, and the screen transitions back to the original production plan selection screen 40. When the decision button 50 is operated, the created changed production plan is stored in the storage unit 25 as the changed production plan information 28.

[0055] Note that the production plan change screen 45 may be configured such that when the range of the specified period is set on the production plan selection screen 40 (when the paired batch production adjustment button is operated), the upper limit number setting frame 47 and the setting button 51 are displayed in a separate window, without providing the upper limit number setting frame 47 and the setting button 51. Also, the production plan change screen 45 may be configured to display only the changed production plan display frame 48, without providing the original production plan display frame 46 or the like.

[0056] Next, a production plan creation method for creating a production plan for producing mounting substrates of a plurality of product types in one lane L of the component mounting line 1 will be described with reference to FIGS. 4 to 6 along the flow of FIG. 7. Here, the creation (change) of a production plan in which the production of double-sided mounting substrates of a plurality of product types is planned by the production unit P for mounting components on the first surface (front surface Bt) of a plurality of substrates B of one product type and the production unit P for mounting components on the second surface (back surface Bb) of a plurality of substrates B of one product type will be described.

[0057] In FIG. 7, first, the acquisition unit 21 acquires a production plan for the specified period from the created production plans included in the production plan information 26 (ST1: production plan acquisition step) (FIG. 4(a)). In the production plan acquisition step (ST1), the production plan for the specified period is acquired using the production plan selection screen 40 or the like displayed on the display unit 30 (see FIG. 5).

[0058] Next, the group creation unit 22 creates groups Q1 to Q3 obtained by grouping a plurality of production units P included in the acquired production plan for the specified period based on the setup change of the production apparatuses (printing apparatus M1, component mounting apparatuses M2 to M4, reflow apparatus M5) constituting the lane L (ST2: setup change grouping step) (FIG. 4(b)). Next, the group creation unit 22 creates sub-groups R1 to R6 obtained by grouping a plurality of production units P included in the groups Q1 to Q3 based on the model change of the production apparatuses constituting the lane L (ST3: model change grouping step) (FIG. 4(c)).

[0059] Note that the production plan creation method is not limited to a form in which the setup change grouping process (ST2) and the model change grouping process (ST3) are continuously executed. For example, only the setup change grouping process (ST2) may be executed, or only the model change grouping process (ST3) may be executed. Also, the setup change grouping process (ST2) may be executed after the model change grouping process (ST3). That is, based on at least one of setup change or model change, groups (groups Q1 to Q3, subgroups R1 to R6) are created by grouping a plurality of production units P included in the obtained production plan.

[0060] In FIG. 7, the acquisition unit 21 acquires the upper limit number of sheets for the batch production of mounting substrates on the component mounting line 1 (ST4: upper limit number acquisition process). In the upper limit number acquisition process (ST4), the upper limit number is acquired using the production plan change screen 45 or the like displayed on the display unit 30 (see FIG. 6). Next, the group creation unit 22 determines whether the total number of substrates B of the plurality of production units P included in each of the created groups Q1 to Q3 and subgroups R1 to R6 is within the range of the upper limit number (ST5: upper limit number determination process).

[0061] When the total number is greater than the upper limit number (No in ST5), the group creation unit 22 divides the groups Q1 to Q3 or the subgroups R1 to R6 to create groups Q4 to Q6 and subgroups R7 to R12 within a range not exceeding the upper limit number (ST6: group division process) (FIG. 4(d)). Next, the changed production plan creation unit 23 creates a changed production plan in which the production order of the production unit P in the production plan is changed based on the created groups Q4 to Q6 and subgroups R7 to R12 (ST7: changed production plan creation process).

[0062] In FIG. 7, when the total number is within the range of the upper limit number (Yes in ST5), the changed production plan creation process (ST7) is executed without executing the group division process (ST6). As a result, a production plan (changed production plan) capable of efficiently producing double-sided mounting substrates can be created.

[0063] As described above, the management computer 3 of the present embodiment acquires a production plan in which the production of mounting substrates of a plurality of varieties is planned by a production unit P for mounting components on the first surface (front surface Bt) of a plurality of substrates B of one variety and a production unit P for mounting components on the second surface (back surface Bb). An acquisition unit 21, based on at least one of a setup change or a model change of production apparatuses (printing apparatus M1, component mounting apparatuses M2 to M4, reflow apparatus M5) constituting the lane L, creates groups (groups Q4 to Q6, subgroups R7 to R12) obtained by grouping a plurality of production units P included in the acquired production plan. A group creation unit 22, and based on the created groups, creates a changed production plan in which the production order of the production units P in the production plan is changed. A changed production plan creation unit 23, and is a production plan creation apparatus for creating a production plan for producing mounting substrates of a plurality of varieties in one lane L of the component mounting line 1.

[0064] Accordingly, it is possible to create a production plan (changed production plan) that enables efficient production of double-sided mounting substrates.

[0065] Although the above has been described by taking as an example the single-lane component mounting line 1 having one lane L, the present embodiment is also applicable to the case of creating a production plan for producing mounting substrates of a plurality of varieties in each lane L of the dual-lane component mounting line 1 having two lanes L.

Industrial Applicability

[0066] The production plan creation apparatus and the production plan creation method of the present invention have an effect of being able to create a production plan that enables efficient production of double-sided mounting substrates, and are useful in the field of mounting components on substrates.

Explanation of Reference Numerals

[0067] 1 Component mounting line 3 Management computer (production plan creation apparatus) B Substrate Bt Front surface (first surface) Inside of Bb (Second side) L Lane M1 Printing device (Production device) M2 - M4 Component mounting devices (Production devices) M5 Reflow device (Production device) P, P1 - P6 Production units Q1 - Q9 Groups R1 - R12 Sub - groups (Groups)

Claims

1. A production plan creation device that creates a production plan for producing mounting substrates of a plurality of product types in one lane of a component mounting line, an acquisition unit that acquires a production plan in which the production of the mounting substrates of the plurality of product types is planned by a production unit that mounts components on the first surface of a plurality of substrates of one product type and a production unit that mounts components on the second surface opposite to the first surface of the plurality of substrates of the one product type; a group creation unit that creates a group by grouping a plurality of the production units included in the acquired production plan based on at least one of a setup change or a model change of a production device constituting the lane; a changed production plan creation unit that creates a changed production plan in which the production order of the production units in the production plan is changed based on the created group. A production plan creation device comprising:

2. The group creation unit creates a group by grouping a plurality of the production units that do not require the setup change, The changed production plan creation unit creates a changed production plan in which a plurality of the production units included in the group are consecutive. The production plan creation device according to claim 1.

3. The group creation unit creates a group by grouping a plurality of the production units that do not require the model change, The changed production plan creation unit creates a changed production plan in which a plurality of the production units included in the group are consecutive. The production plan creation device according to claim 1.

4. The group creation unit creates a first group including the first production unit and the second production unit when the setup change or the model change is not required between a first production unit that mounts components on the first surface of a substrate of a first product type and a second production unit that mounts components on the first surface of a substrate of a second product type, The changed production plan creation unit creates a changed production plan in which the first production unit and the second production unit are consecutive. The production plan creation device according to claim 1.

5. The group creation unit creates a second group including the third production unit and the fourth production unit when the setup change or the model change is not required between a third production unit that mounts components on the second surface opposite to the first surface of the substrate of the first product type and a fourth production unit that mounts components on the second surface opposite to the first surface of the substrate of the second product type, The production plan creation unit for change creates a production plan for change in which the third production unit and the fourth production unit are continuous and further the first group and the second group are continuous, the production plan creation apparatus according to claim 4.

6. The acquisition unit further acquires the upper limit number of the collective production of the mounting substrates on the component mounting line, The group creation unit creates the group within a range where the total number of substrates of a plurality of the production units does not exceed the upper limit number, the production plan creation apparatus according to any one of claims 1 to 5.

7. The production plan creation apparatus according to claim 1, further comprising a display unit that displays the production order of the production plan for change.

8. A production plan creation method for creating a production plan for producing mounting substrates of a plurality of product types in one lane of a component mounting line, acquiring a production plan in which the production of the mounting substrates of the plurality of product types is planned by a production unit for mounting components on a first surface of a plurality of substrates of one product type and a production unit for mounting components on a second surface opposite to the first surface of the plurality of substrates of the one product type, creating a group by grouping a plurality of the production units included in the acquired production plan based on at least either a setup change or a model change of a production apparatus constituting the lane, A production plan creation method for creating a production plan for change in which the production order of the production units in the production plan is changed based on the created group.

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