阅读说明：本技术 生产管理装置 (Production management device ) 是由 畠山拓治 奥村宜纪 于 2017-05-18 设计创作，主要内容包括：由本说明书公开的生产管理装置(生产管理计算机)在使用具备多个元件供给装置(供料器(F))的元件安装机(表面安装机(U1、U2))对应每个品种连续生产多种基板时,决定该基板的生产顺序,上述生产管理装置构成为,具备决定单元(主控制部(211)),将从对于一个品种的基板所使用的所有元件供给装置的外换产开始起至结束为止的时间作为外换产时间,上述决定单元以连续生产的两个品种的基板的外换产时间之和在连续生产的整个期间被平准化的方式决定基板的生产顺序。(A production management device (production management computer) disclosed in the present specification determines a production order of a plurality of types of substrates when the plurality of types of substrates are continuously produced for each variety using a component mounting machine (surface mounting machines (U1, U2)) provided with a plurality of component supply devices (feeders (F)), wherein the production management device is provided with a determination means (main control unit (211)) for determining the production order of the substrates such that the sum of the external setup times of two types of substrates that are continuously produced is leveled over the entire period of continuous production, and the time from the start to the end of the external setup of all component supply devices used for one type of substrates is used as the external setup time.)

1. A production management device determines the production sequence of a plurality of kinds of substrates when the substrates are continuously produced for each kind by using a component mounting machine having a plurality of component supply devices,

The production management apparatus includes a determination unit configured to determine a production order of substrates such that a sum of the external replacement time periods of two types of substrates to be continuously produced is leveled throughout the entire period of continuous production, the determination unit setting, as an external replacement time, a time from a start to an end of the external replacement of all of the component supply apparatuses used for one type of substrate.

2. The production management device according to claim 1,

The determination means determines the production order of the substrates such that the substrates of the type having the long ex-change time and the substrates of the type having the short ex-change time are alternately arranged when the machine operation time of two types of substrates continuously produced is constant, taking the time from the start to the end of the production of one type of substrate as the machine operation time.

3. The production management apparatus according to claim 1 or 2,

A plurality of the component feeding devices are arranged in a lateral direction on a mounting board, and a plurality of the mounting boards are capable of being mounted on the surface mounting machine,

The determining means determines the production order of the substrates such that a large number of substrates of a variety required simultaneously by the mounting plates and a small number of substrates of a variety required simultaneously by the mounting plates are alternately arranged.

Technical Field

The technology disclosed by the present specification relates to a production management apparatus.

Background

Conventionally, as a manufacturing support system for improving manufacturing efficiency in the case of manufacturing a plurality of products in a production line of printed circuit boards, a structure described in japanese patent application laid-open No. 2013-191677 (patent document 1 below) is known. The manufacturing support system includes: a grouping unit for grouping a plurality of products within a range of the maximum number of mounted components to be mounted; and a scheduling unit for determining the manufacturing order of the plurality of groups based on the device mounting time of each group. The scheduling unit determines the manufacturing order of the plurality of groups by alternately arranging the maximum group and the minimum group in order of the component mounting time of the group so that the total time of the component mounting times between the groups adjacent to each other in the manufacturing order is leveled over the entire manufacturing period.

Disclosure of Invention

problems to be solved by the invention

According to the above-described manufacturing support system, even if the total time of the component mounting times between the groups adjacent to each other in the manufacturing order can be made flat, the operation stop time from the end of mounting of a group during the operation period to the start of the group in the next operation period is not shortened. This is because the component mounting time is not necessarily proportional to the external setup time involved in the external setup.

For example, if two sets have the same component mounting time and the number of carriages used in one set is smaller than that of carriages used in the other set, the external setup time of the one set is shorter than that of the other set, and therefore the other set is likely to cause an operation stop than the one set.

In order to shorten the inter-group operation stop time, it is necessary to consider the setup time of each group, and it is not sufficient to merely level the total time of the device mounting times between groups adjacent to each other in the manufacturing order.

Means for solving the problems

The production management apparatus disclosed in the present specification is configured to include a determination unit configured to determine a production order of substrates for each of a plurality of types of substrates when the plurality of types of substrates are continuously produced for each of the types of substrates using a component mounting apparatus including a plurality of component supply devices, the determination unit being configured to determine the production order of the substrates such that a sum of external replacement times of two types of substrates continuously produced is leveled over an entire period of continuous production, with a time from a start to an end of external replacement of all of the component supply devices used for one type of substrate being used as an external replacement time.

When it is assumed that substrates are successively produced in the order of A, B, C, D with the type of substrate being A, B, C, D, the lead-out time of B being 50 minutes, the lead-out time of C being 10 minutes, and the lead-out time of D being 10 minutes, the lead-out for a is generally performed the day before, and therefore the lead-out for B is started simultaneously with the start of production of a. In this case, the time required for the external replacement of B is longest among B to D, and therefore, if the external replacement of B is not completed until the production of a is completed, the operation of the machine is stopped due to the waiting of the external replacement work of B.

Therefore, for example, when the production sequence of B and C is changed, the overall production sequence becomes A, C, B, D, and as a result, the sum of the lead-out times of C and B is 60 minutes, and the sum of the lead-out times of B and D is also 60 minutes, and the sum of the lead-out times is leveled out over the entire period of continuous production. In this way, when the lead-out of C is started simultaneously with the start of production of a, the lead-out time of C is shorter than the lead-out time of B, so that it is easy to end the lead-out of B until the end of production of a, and the machine operation can be prevented from being stopped. Further, the replacement of B can be performed during a period from the end of the replacement of C to the end of the production of C.

Thus, according to the above configuration, the sum of the setup changeover times of the two types of substrates continuously produced is leveled throughout the continuous production, and therefore, the machine operation stop due to the setup changeover work waiting can be suppressed.

The production management device disclosed in the present specification may have the following configuration.

The determination unit may be configured to determine the production order of the substrates such that the substrates of the type having the long ex-change time and the substrates of the type having the short ex-change time are alternately arranged when the machine operation time is set to be equal to a time from the start to the end of the production of one type of substrate and two types of substrates continuously produced are set to be constant.

According to this configuration, when the machine operating time of two types of substrates continuously produced is constant and the external replacement time is different, the sum of the external replacement times can be leveled by alternately arranging these substrates.

The component supply devices may be arranged in a horizontal direction on a single mounting plate, the mounting plates may be mounted on the surface mounting apparatus, and the determining unit may determine the production order of the substrates such that a large number of types of substrates simultaneously required by the mounting plates and a small number of types of substrates simultaneously required by the mounting plates are alternately arranged.

In order to perform the outside replacement, at least the number of mounting plates that adds up the number of mounting plates used in two kinds of substrates that are continuously produced is required. Therefore, according to the above configuration, since the substrates of the type having a large required number of mounting plates and the substrates of the type having a small required number of mounting plates are alternately arranged, the number of mounting plates to be used simultaneously can be reduced.

In addition, the sum of the out-conversion time can be leveled even for two types of substrates that are continuously produced when the out-conversion time of each substrate is almost proportional to the number of mounting plates used.

Effects of the invention

According to the technique disclosed in the present specification, machine operation stoppage due to the wait of the outside plant work can be suppressed.

Drawings

Fig. 1 is a diagram showing a line configuration of a substrate manufacturing line according to an embodiment.

Fig. 2 is a plan view of the surface mounting machine.

Fig. 3 is a plan view of the entire replacement cart (only the periphery of the feeder board is shown).

Figure 4 is a side view of the feeder.

Fig. 5 is a block diagram showing an electrical configuration of the entire substrate manufacturing line.

Fig. 6 is a diagram showing the storage contents stored in the storage unit.

Fig. 7 is a flowchart showing a flow of processing executed by the production management computer.

Fig. 8 is a diagram showing a procedure for determining a substrate production sequence.

Detailed Description

< embodiment >

The embodiment will be described with reference to the drawings of fig. 1 to 8.

1. Integral constitution of substrate manufacturing line L

Fig. 1 is a diagram showing a partial configuration of a substrate manufacturing line L applied to the present embodiment. The substrate manufacturing line L is configured to connect a solder print apparatus (not shown), surface mounting apparatuses U1, U2, and a reflow apparatus R in series by a conveyor, and to perform predetermined processes such as a printing process (a process of screen-printing solder paste on the surface of a substrate), a component mounting process (a process of mounting chip components such as ICs on the substrate after the printing process), a reflow process (a process of dissolving the solder paste at a high temperature and electrically connecting the components to a pattern on the substrate) on the substrate by the apparatuses U1, U2, and R.

In addition, reference numeral 300 in fig. 1 denotes a production management computer that manages the substrate manufacturing line L. In the present embodiment, the devices U1, U2, and R constituting the substrate manufacturing line L are electrically connected to the production management computer 300 by a LAN (local area network), and the production management computer 300 is configured to be able to manage the operating conditions of the devices U1, U2, and R.

2. Surface mounting machine U1, U2 structure

As shown in fig. 1, the surface mounting machines U1 and U2 are configured to include a conveyor 20 for conveying substrates, a component supply unit 30, and a head unit 60. In the following description, the substrate conveyance direction (the left-right direction in fig. 1 and 2) is defined as the X-axis direction, and the Y-axis direction and the Z-axis direction are defined as in fig. 1 and 2.

As shown in fig. 2, the transport conveyor 20 includes a pair of transport belts 21 that are driven to circulate in the X direction, and can transport the substrate placed on the upper surfaces of the belts 21 in the X axis direction by friction with the belts 21.

Further, a transport conveyor 25 is provided upstream of the mounting machine U1, a transport conveyor 27 is provided downstream of the mounting machine U2, and a transport conveyor 26 is provided between the mounting machines U1 and U2.

The transport conveyors 25 to 27 are continuous with the transport conveyor 20 provided in the mounting machines U1 and U2 without a step difference, and each of the conveyors plays a role of relaying the substrate between adjacent devices.

With this configuration, the substrate can be transported from the solder printing apparatus located on the upstream side in this order (solder printing apparatus → mounter U1 → mounter U2 → reflow apparatus R).

The substrate conveyed by the conveyance conveyor 25 onto the base 11 of the mounting machine U1 and the substrate conveyed by the conveyance conveyor 26 onto the base 11 of the mounting machine U2 are both stopped at a working position (position shown by a one-dot chain line in fig. 2) at the center of the base 11 by a substrate stopper (not shown).

Further, a plurality of component supply units 30 are provided at four corners of the base 11 of each of the mounters U1 and U2. The component supply unit 30 serves as a supply location for the mounted components, and a total replacement cart is detachably mounted thereto. That is, in the present embodiment, a total of 4 entire replacement carriages D1 to D4 are attached to the surface mounting machine U1, and a total of 4 entire replacement carriages D5 to D8 are attached to the surface mounting machine U2, and a maximum of 8 entire replacement carriages can be used when the total of both surface mounting machines U1 and U2 are used.

As shown in fig. 3, each of the entire replacement carriages D1 to D8 (hereinafter, simply the carriage) includes a feeder plate 110 (an example of the "attachment plate" of the present invention) in a flat plate shape at the front portion of the carriage. Feeder board 110 is configured to have a shape extending vertically in the drawing (in the relationship between surface mounting machines U1 and U2, along the X-axis direction of the conveying direction of conveyor 20), and a plurality of feeders F can be mounted in a lateral arrangement.

feeder F is configured by feeder body 81 and the like including feeder device 83, stretching device 87, and fixing these devices, and is formed in a shape elongated in the Y axis direction as a whole as shown in fig. 4.

In addition, a component supply tape BP, which holds components at a constant interval on the upper surface and is in the form of a sheet, is wound around a tape reel, not shown, at the rear of the feeder main body 81. The feeder main body 81 is provided with a tape passage 90, and the component supply tape BP drawn from the tape reel is drawn out to the front of the feeder F while passing through the tape passage 90.

As described above, when the feeder 83 is operated, the tape guide gear 84 constituting the feeder 83 rotates to introduce the component supply tape BP in the tape path 90 forward, and as a result, the components are supplied to the component supply position O set at the front end of the feeder F at a constant interval. Further, since only one type of component can be supplied by one feeder F, at least the number of feeders F corresponding to the type of components to be mounted is required for the production of the substrate.

Next, referring back to fig. 2 and 3, a head unit 60 for mounting components supplied by the feeder F on a substrate stopped at a working position and a servo mechanism for driving the head unit 60 will be described. Since these mechanisms use a common structure for both the mounting machines U1 and U2, the mounting machine U1 side is described as an example here.

A pair of support legs 41 are provided on the base 11. Both support legs 41 are located on both sides of the working position, and extend straight in the Y direction (the vertical direction in the figure of fig. 2).

The support legs 41 are provided with guide rails 42 extending in the Y direction on the upper surfaces of the support legs 41, and head support bodies 51 are attached to both ends of the support legs 41 in the longitudinal direction while being fitted to the left and right guide rails 42.

Further, a Y-axis ball screw 45 extending in the Y direction is attached to the right support leg 41, and a ball nut (not shown) is screwed to the Y-axis ball screw 45. Further, a Y-axis motor 47 is attached to the Y-axis ball screw 45.

When the Y-axis motor 47 is energized, the ball nut advances and retreats along the Y-axis ball screw 45, and as a result, the head support 51 fixed to the ball nut, and further, the head unit 60 described below, move in the Y direction along the guide rail 42 (Y-axis servo mechanism).

the head unit 60 is mounted on the head support body 51 so as to be movable in the X-axis direction via a guide member not shown.

An X-axis ball screw 55 extending in the X direction is attached to the head support body 51, and a ball nut is screwed to the X-axis ball screw 55.

Thus, when the X-axis motor 57 is energized, the ball nut advances and retreats along the X-axis ball screw 55, and as a result, the head unit 60 fixed to the ball nut moves in the X direction (X-axis servo mechanism).

Therefore, the X-axis servo mechanism and the Y-axis servo mechanism are compositely controlled, whereby the operating head unit 60 can be moved in the horizontal direction (XY direction) on the base 11.

A plurality of suction heads, not shown, for performing an attaching operation are mounted in a row on the head unit 60. The suction head projects downward from the lower surface of the head unit 60, and is configured to be movable up and down with respect to the frame of the head unit 60 by driving of a Z-axis motor (Z-axis servo mechanism). A suction nozzle 63 is provided at the tip of each suction head, and negative pressure is supplied from a negative pressure unit outside the drawing.

With this configuration, each servo mechanism is operated at a predetermined timing, so that the component supplied to the component supply position O by the feeder F can be taken out by the suction nozzle 63, and the taken-out component can be mounted to the component mounting position after being moved to the component mounting position on the substrate (component mounting process).

Further, reference numeral 17 shown in fig. 2 is an element recognition camera. The component recognition camera 17 captures an image of the component taken out by the suction nozzle 63, and detects the suction posture of the component.

3. Electrical structure of each device

(a) Electrical structure of surface mounting machine

As shown in fig. 5, the mounting machines U1 and U2 are controlled by the controller 210 as a whole. The controller 210 includes a main control unit 211 including a CPU, a storage unit 212, a shaft control unit 215, an image processing unit 216, and a communication unit 217.

The shaft control unit 215 is electrically connected to the shaft motors 47 and 57 and shaft encoders for detecting the rotation states of the shaft motors 47 and 57, and the shaft control unit 215 can control the shaft motors 47 and 57.

The element recognition camera 17 and the illuminator are electrically connected to the image processing unit 216, and an image output from the element recognition camera 17 is acquired by the image processing unit 216.

As described above, by appropriately operating the axis motors 47 and 57 and the like by the main control section 211, the component supply process by the feeder F and the component mounting process by the head unit 60 can be executed.

(b) Electrical architecture for production management computer

The production management computer 300 is mainly composed of a main control unit 310, a program storage unit 320, a storage unit 330, a display unit 350, an input unit 360, and the like, and is connected to a LAN via a communication unit 340.

The input unit 360 has a function of receiving input of production information (information related to production of a substrate of a variety to be produced), and in this example, is constituted by a touch panel.

As shown in fig. 6, storage unit 330 stores various data necessary for the control device, and also stores data of components B1 through B15 and feeders F1 through F15 corresponding to components B1 through B15 in association with each other.

With this configuration, if the type (kind) of components B1 to B15 mounted on the substrate can be specified, data on the kinds of feeders F1 to F15 necessary for supplying the components and the width dimensions W1 to W15 of the feeders F1 to F15 can be obtained.

When the production information is input through the input unit 360, necessary data is read from the storage unit 330, and the main control unit 310 reads necessary programs from the program storage unit 320 and sequentially executes the programs, thereby automatically generating a production plan such as a production order of substrates.

Hereinafter, a specific process flow executed by the production management computer 300 will be described with reference to a flowchart shown in fig. 7.

Here, the following description will be continued assuming that the input unit 360 performs the following input as the production information.

(1) Varieties of continuously produced substrates (variety A to variety D4)

(2) Information of components mounted on various kinds of substrates

When the production information is input, production management computer 300 accesses storage unit 330 and reads the data of feeder F used for production, and main control unit 310 performs the process (S10).

Then, when the data of feeder F is read, the processing of calculating the required number of carriers N required for the arrangement space of feeder F and further the arrangement of feeder F is performed for each of the types a to D (S20).

Specific examples of the processing at S20 will be described, and when 12 types of components, that is, components B1 to B12, are mounted on the board of type a, the arrangement space for feeder F of type a is a numerical value obtained by adding widths W1 to W12 of 12 types of feeders F1 to F12 corresponding to components B1 to B12.

WF＝W1+W2+·········+W11+W12+α

Note that "α" is a value obtained by estimating the amount of clearance, since a certain degree of clearance is required between feeders at the time of actual placement.

Further, as shown in fig. 3, since width Wo of feeder board 110 provided in trucks D1 to D8 is determined in advance, number N of required trucks for boards of type a can be calculated by dividing placement space WF of feeders F by width Wo of feeder board 110.

As a result of the calculation, the required number of carriages N required for the substrate of the type a is "8 carriages", the required number of carriages N required for the substrate of the type B is "7 carriages", the required number of carriages N required for the substrate of the type C is "3 carriages", and the required number of carriages N required for the substrate of the type D is "4 carriages", as shown in fig. 8 (a), and the description will be continued below.

As shown in fig. 7, according to the above point, when the required number N of carriages is calculated, the main control unit 310 then executes a process of arranging the substrates in descending order of the required number N of carriages (S30).

Thus, as shown in fig. 8 (B), the substrates are rearranged in the order of item a, item B, item C, and item D.

Here, an outside replacement work will be described in which feeder F used for production of the next substrate is attached to feeder board 110, and feeder board 110 is attached to mounting machines U1 and U2 before production of the substrate during operation is completed. First, the external exchange time and the machine operation time are defined. The outside replacement time is a time from the start to the end of outside replacement of all the feeders F used for one type of substrate. The machine operation time is a time from the start to the end of production of one type of substrate.

Since the setup time for the outside plant may vary depending on the experience, capability, and the like of the operator, the setup time may be stored in the storage unit 330 in association with each operator, read from the storage unit 330 for each operator, or calculated by the main control unit 310 based on the required number of trucks N as described later. On the other hand, the machine operation time can be predicted from the type and total number of components used, the number of substrates scheduled for production, and the like, and therefore can be calculated by the main control unit 310.

As shown in fig. 8 (a), the external setup for a, which is originally scheduled to start production, is generally performed on the previous day, and therefore the external setup for B is started simultaneously with the start of production of a. However, since the machine operation time of a is 30 minutes, and the machine operation stop occurs 20 minutes from the end of production of a to the start of production of B because the machine operation time of B is 50 minutes. In order to prevent such machine operation from being stopped, C or D, which has a setup time shorter than A, is selected. C or D, which is the substrate to be produced next to a, needs to be selected so that the out-conversion time is 30 minutes or less.

Here, when D is selected, 8 necessary carriages for a and 4 necessary carriages for D are simultaneously required, and therefore the number of necessary carriages simultaneously required is 12. On the other hand, when C is selected, 8 necessary carriages for a and 3 necessary carriages for C are simultaneously required, and therefore the number of simultaneously required carriages is 11. Therefore, when the outside plant time is the same, it can be said that it is better to select C that requires a small number of trucks.

As a result, C was selected as the substrate to be produced next to a, and B and C were exchanged, resulting in the production sequence shown in fig. 8 (B). Thus, the external production change time is A from A: 30 minutes, C: 10 minutes, B: 50 minutes, D: substrates of the variety having a long out-trade time and substrates of the short variety were alternately arranged for 10 minutes.

As a result, the sum of the out-change times of a and C was 40 minutes, the sum of the out-change times of C and B was 60 minutes, and the sum of the out-change times of B and D was 60 minutes, and the sum of the out-change times of two kinds of substrates continuously produced was leveled throughout the entire period of continuous production. Further, since the time for the replacement of C is 10 minutes, the replacement of C is completed before the production of a is completed, and the machine operation can be prevented from being stopped, and the replacement of B can be started during the production of a.

The machine operation time was all 30 minutes and was constant for the types of substrates shown in fig. 8 (B) regardless of the types of substrates. In this case, since the sum of the machine operating times of two types of substrates to be continuously produced is constant, the sum of the external production time can be easily leveled by determining the production order of the substrates so that the substrates of the types having long external production times and the substrates of the types having short external production times are alternately arranged.

In general, the outside exchange time tends to be proportional to the required number of carriers N, and therefore, in the present embodiment, the production order of substrates is determined by alternately arranging a large number of types of substrates and a small number of types of substrates, which require the number of carriers N. As described above, the main control unit 310 can calculate the required number of carriages N, and therefore the production order of the substrates can also be determined by the main control unit 310. Then, the main control unit 310 determines the production order of the substrates so that the substrates of the types requiring the large number N of carriers and the substrates of the types requiring the small number N are alternately arranged (S40).

Then, when the production order of the substrates is determined, main control unit 310 selects one substrate according to the production order (S50), determines which feeder F is allocated at which position of which trolleys D1 to D8 so that the mounting process of the components can be executed most efficiently, and further determines the mounting order of the components (optimization process, S60).

When the optimization process for the substrate of type a is completed, the main control unit 310 then executes the processes of S70 and S80. The process at S70 is determined as yes, the process at S80 is determined as no, and as a result, the process proceeds to S90.

In S90, the following processing is performed: the cart allocated as the substrate for which the optimization processing was completed in S60 is removed from the optimization processing target. Thereafter, the process proceeds to S100. In S100, the main control unit 310 performs a process of selecting the next substrate in the production order. According to this process, in this example, the substrate of the type C is selected. When the process of optimizing the substrates of all the varieties A, C, B, D is completed, the determination is yes in S80, and the series of processes is completed.

Then, under the control of the production management computer 300, the solder printing apparatus, the surface mounting apparatuses U1 and U2, and the reflow apparatus R, which are the respective apparatuses constituting the substrate manufacturing line L, are operated, and the production is advanced for the type a substrate.

The operation of installing the feeder F used for the type C to be produced next on the cart can be advanced simultaneously with the production of the type a substrates while the type a substrates are being produced. When the carriages having been set are mounted on the component supply units 30 of the surface mounting machines U1 and U2, respectively, no time is left after the production of the product type a, and the substrates of the product type C can be continuously produced. In other words, it is not necessary to temporarily stop the substrate manufacturing line L and perform a replacement operation for replacing the carriage.

Further, the operation of installing the feeder F used for the next planned product type B on the cart can be advanced in parallel with the production of the substrate of the type a.

As described above, according to the present embodiment, the sum of the setup changeover times of two types of substrates continuously produced is leveled throughout the continuous production, and therefore, machine operation stoppage due to the setup changeover operation waiting can be suppressed.

The determining means may be configured to determine the production order of the substrates such that the substrates of the type having the long swap production time and the substrates of the type having the short swap production time are alternately arranged when the machine operation time is constant for two types of substrates continuously produced, using the time from the start to the end of the production of one type of substrate as the machine operation time.

According to this configuration, when the machine operating time of two types of substrates continuously produced is constant and the external replacement time is different, the sum of the external replacement times can be leveled by alternately arranging these substrates.

The plurality of component supply devices may be arranged in a horizontal direction on one mounting board (feeder board 110), the plurality of mounting boards may be mounted on the surface mounting machine, and the determination unit may determine the production order of the substrates such that a large number of types of substrates, which are simultaneously required by the mounting boards and a small number of types of substrates, which are simultaneously required by the mounting boards, are alternately arranged.

In order to perform the outside replacement, at least the number of mounting plates that adds up the number of mounting plates used in two kinds of substrates that are continuously produced is required. Therefore, according to the above configuration, since the substrates of the type having a large required number of mounting plates and the substrates of the type having a small required number of mounting plates are alternately arranged, the number of mounting plates to be used simultaneously can be reduced.

In addition, the sum of the out-conversion time can be leveled even for two types of substrates that are continuously produced when the out-conversion time of each substrate is almost proportional to the number of mounting plates used.

< other embodiments >

The technology disclosed in the present specification is not limited to the embodiments described above and illustrated in the drawings, and includes various embodiments such as the following.

(1) In the above embodiment, the 2-link type line configuration in which two surface mounting machines U1 and U2 are connected in series is illustrated, and the number of links of the surface mounting machines is not limited to 2 links, and may be 3 links or more. Further, the present invention can be applied to a line configuration in which a surface mounting machine is used alone.

(2) In the above embodiment, an example in which the production management computer 300 is exclusively installed is shown, but for example, in the case where only a single surface mounting machine is used, the production management computer 300 itself can be eliminated by incorporating all the processing functions of the production management computer 300 of the above embodiment into the surface mounting machine.

(3) In the above embodiment, the production order of the substrates is determined so that the substrates of the type requiring the large number of carriages N and the substrates of the type requiring the small number of carriages N are alternately arranged, and as a result, the substrates of the type having the long outside replacement time and the substrates of the type having the short outside replacement time are alternately arranged, but the production order of the substrates may be determined only by the outside replacement time read out from the storage unit 330 regardless of the required number of carriages N.

Description of the reference numerals

110 … feeder board (mounting board)

211 … Main control part (decision unit)

300 … production management computer (production management device)

F … feeder (component feeder)

U1 and U2 … surface mounting machine (component mounting machine)