JP2020188264A - Component mounting line and production method of component mounted substrate - Google Patents

Abstract

To start production in the middle of optimizing production jobs.SOLUTION: An optimization processing computer 61, before production is started, sends a production job on which optimization processing has been performed but which is in the middle of optimization to each component mounter 12 in a component mounting line 10, causes an automatic exchanging device 26 which automatically changes a feeder 14 to operate to change a feeder arrangement of each component mounter 12 to a feeder arrangement specified in the production job, then causes each component mounter 12 to operate to start production. After production is started, optimization processing on the production job is continued by the optimization processing computer 61, and in the middle of production, the newest production job, for which optimization has progressed during production, is acquired from the optimization processing computer 61 to update the production job executed by each component mounter 12, and the automatic exchanging device 26 is caused to operate to change the feeder arrangement of each component mounter 12 to the feeder arrangement specified in the production job, then production is continued.SELECTED DRAWING: Figure 3

Description

This specification discloses a component mounting line equipped with an automatic replacement device that automatically replaces the feeder arrangement of the component mounting machine with the feeder arrangement specified in the production job, and a production method of the component mounting board.

Conventionally, in order to improve the production efficiency of the component mounting line, the production job to be executed by each component mounting machine has been optimized. Conventional general optimization methods are described in Patent Document 1 (Japanese Patent Laid-Open No. 2002-171907), Patent Document 2 (Japanese Patent Laid-Open No. 2008-218970), and Patent Document 3 (Japanese Patent Laid-Open No. 2004-79962). As shown above, the mounting order of components to be mounted on the circuit board is optimized, and the arrangement of feeders set in the component mounting machine is optimized to minimize the moving distance and moving time of the mounting head (suction nozzle). By doing so, we try to optimize the production job so that the highest production efficiency can be obtained.

In general, a component mounting line mounts a large number of components on a circuit board using a plurality of component mounting machines, so the combination of component mounting order and feeder arrangement of multiple component mounting machines handled in the optimization process is enormous. Become a number. Therefore, it takes a considerably long time to completely complete the optimization process of the production job of a plurality of component mounting machines on the personal computer. Although it depends on the computing power of the personal computer that executes the optimization process, it may take, for example, about one day to complete the optimization process. Therefore, Patent Document 4 (Japanese Unexamined Patent Publication No. 2003-283198), Patent As described in Document 5 (Japanese Patent Laid-Open No. 2009-49440), depending on the user, the optimization process is terminated in the middle, and production is executed with the feeder arrangement specified in the production job in the middle of the optimization. May be done.

Japanese Unexamined Patent Publication No. 2002-171907 Japanese Unexamined Patent Publication No. 2008-218970 Japanese Unexamined Patent Publication No. 2004-97962 Japanese Unexamined Patent Publication No. 2003-283198 JP-A-2009-49440

However, if production is started with a production job in the middle of optimization, the production is executed in a state where the production efficiency is low, so that the production time becomes long and the production end time is delayed. On the other hand, if the production is started after the production job optimization process is completely completed, the production start time will be delayed, and as a result, the production end time will also be delayed.

In order to solve the above problems, the component mounting machine that sucks the component supplied from the feeder with the suction nozzle and mounts it on the circuit board, and the component mounting machine provided on the component mounting machine and according to the acquired production job in the process of optimization. The mounting was started on the mounting machine to start the production of the component mounting board, and in the middle of the production, a production job that was further optimized than the production job currently being produced was acquired, and the production was further optimized. A control device that continues production according to a production job, and an automatic switching device that automatically replaces the feeder arrangement of the component mounting machine with the feeder arrangement specified in the further optimized production job when the production is continued. It has a structure to have.

In short, when the production job optimization process is performed to some extent before the start of production, the production job in the process of optimization is transmitted to the component mounting machine to start production, and the production job optimization process is performed even after the start of production. After that, the latest production job that has been optimized in the middle of production is transmitted to the component mounting machine to update the production job executed by the component mounting machine, and the automatic replacement device is operated to operate the component mounting machine. The feeder layout of the above is changed to the feeder layout specified in the latest production job for which the optimization has been advanced so that production can be continued. In this way, by starting production with a production job in the middle of optimization without waiting for the end of the optimization process of the production job, the production start time is advanced, and then the latest optimization is advanced in the middle of production. By changing to the production job of the above and continuing production, it is possible to improve production efficiency and shorten production time from the middle of production, and simultaneously satisfy two conflicting requirements of early start of production and shortening of production time. be able to.

FIG. 1 is a perspective view showing the configuration of the entire component mounting line of the first embodiment. FIG. 2 is a perspective view schematically showing the configurations of the automatic switching device and the component mounting machine. FIG. 3 is a block diagram schematically showing the configuration of a production control system for a component mounting line with an automatic replacement device. FIG. 4 is a perspective view showing a cassette type feeder. FIG. 5 is a perspective view showing a cassette type suction nozzle replacement unit. FIG. 6 is a perspective view showing a state in which the rotary nozzle station is removed from the cassette type suction nozzle replacement unit. FIG. 7 is a flowchart showing a processing flow of the production job optimization processing program of the first embodiment. FIG. 8 is a flowchart showing a processing flow of the production control program of the first embodiment. FIG. 9 is a flowchart showing a processing flow of the production job optimization processing program of the second embodiment. FIG. 10 is a flowchart showing a processing flow of the production control program of the second embodiment.

Hereinafter, two Examples 1 and 2 will be described.

The first embodiment will be described with reference to FIGS. 1 to 8.
First, the configuration of the component mounting line 10 will be described with reference to FIGS. 1 to 6.

The component mounting line 10 is configured by arranging a plurality of component mounting machines 12 along the transport direction (X direction) of the circuit board 11, and solders to the circuit board 11 on the board carry-in side of the component mounting line 10. A solder printing machine (not shown) for printing, a storage device 19 for storing a cassette-type feeder 14 (see FIG. 4) and a cassette-type suction nozzle replacement unit 81 (see FIGS. 5 and 6) are installed. ing.

As shown in FIG. 2, each component mounting machine 12 has two conveyors 13 that convey the circuit board 11 and a suction nozzle that sucks the components supplied from the cassette type feeder 14 and mounts them on the circuit board 11. A mounting head 15 that replaceably holds (not shown), a head moving device 16 that moves the mounting head 15 in the XY directions (left-right front-back direction), a liquid crystal display, a display device 23 such as a CRT, and the like are provided. ing.

Each component mounting machine 12 of the component mounting line 10 conveys the circuit board 11 conveyed from the component mounting machine 12 on the upstream side to a predetermined position by the conveyor 13, and uses a clamping mechanism (not shown) to transfer the circuit board 11 to a predetermined position. The component to be clamped and supplied from the cassette type feeder 14 is attracted by the suction nozzle of the mounting head 15 and moved from the suction position to the imaging position, and the component is moved from the lower surface side of the component imaging camera ( After imaging with (not shown) to determine the amount of suction position deviation of the component, the amount of suction position deviation is corrected and the component is mounted on the circuit board 11 on the conveyor 13 to produce a component mounting board. ..

Next, the configuration of the cassette type feeder 14 will be described with reference to FIG.

The cassette case 32 of the cassette type feeder 14 is formed of a transparent or opaque plastic plate, a metal plate, or the like, and its side surface portion (cover) can be opened and closed. Inside the cassette case 32, a tape loading section 35 is provided for removably (replaceably) loading the tape reel 34 around which the component supply tape 33 is wound. A reel holding shaft 36 that rotatably holds the tape reel 34 is provided at the center of the tape loading portion 35.

Inside the cassette case 32, a tape feeding mechanism 38 that sends the component supply tape 33 pulled out from the tape reel 34 to the component suction position, and a top film 40 (also called a cover tape) from the component supply tape 33 in front of the component suction position. A top film peeling mechanism 39 is provided for peeling to expose the parts in the part supply tape 33.

The tape feed mechanism 38 is composed of a sprocket 42 provided near the lower part of the component suction position, a motor 43 for rotationally driving the sprocket 42, and the like, and is formed on one side edge of the component supply tape 33 at a predetermined pitch. By engaging the teeth of the sprocket 42 with the tape feed hole and rotating the sprocket 42, the component supply tape 33 is pitch-fed to the component suction position.

The top film peeling mechanism 39 holds the component supply tape 33 in front of the component suction position to peel the top film 40 from the upper surface of the component supply tape 33, and the top film peeled by the tape retainer 45. It is composed of a top film feed gear mechanism 47 that pulls 40 in the direction opposite to the tape feed direction and feeds it into the top film collection unit 46 at the top of the cassette case 32, a motor 48 that drives the top film feed gear mechanism 47, and the like. ing.

At the edge of the cassette case 32 on the tape feed direction side, a waste tape 33a (only the carrier tape from which the top film 40 has been peeled off in the first embodiment) from which the parts have been taken out after passing through the component suction position is placed. The waste tape discharge passage 50 that guides and discharges downward is provided so as to extend downward, and the outlet 50a of the waste tape discharge passage 50 is provided at a position below the center of the end surface of the cassette case 32 on the tape feed direction side. Has been done.

Inside the cassette case 32, a control device 52 for controlling the motor 43 of the tape feeding mechanism 38 and the motor 48 of the top film peeling mechanism 39 is provided. In addition, although not shown, the cassette case 32 is provided with a communication / power supply connector connected to a communication / power supply connector on the component mounting machine 12 side.

Next, the configuration of the cassette type suction nozzle replacement unit 81 will be described with reference to FIGS. 5 and 6.
Like the cassette type feeder 14, the cassette case 83 of the cassette type suction nozzle replacement unit 81 is formed of a transparent or opaque plastic plate, a metal plate, or the like, and its side surface portion (cover) can be opened and closed. .. Inside the cassette case 83, a nozzle station loading portion 85 having a circular recess shape for loading the disk-shaped rotary nozzle station 84 detachably (replaceably) is provided, and a drive shaft 86 is provided at the center of the nozzle station loading portion 85. (See FIG. 6) is provided toward the inside of the cassette case 83 in the width direction, and the central portion of the rotary nozzle station 84 is rotatably and detachably connected to the drive shaft 86. On the outer peripheral portion of the rotary nozzle station 84, a plurality of suction nozzles 87 for exchanging with the suction nozzles of the mounting head 15 of the component mounting machine 12 are arranged radially at a predetermined pitch and held detachably. ing.

On the other hand, in the cassette case 83, a rotation drive device 88 for rotating the rotary nozzle station 84 is provided. The rotation drive device 88 includes a motor 89 as a drive source and a gear mechanism 90 that transmits the rotation of the motor 89 to the drive shaft 86.

A nozzle replacement port 91 is formed at a position corresponding to the uppermost end of the rotary nozzle station 84 (directly above the center of the rotary nozzle station 84) on the upper end surface of the cassette case 83, and the nozzle replacement port 91 is formed. The suction nozzle 87 is exchanged between the rotary nozzle station 84 and the mounting head 16 of the component mounting machine 12 through the rotary nozzle station 84. The cassette case 83 is provided with a shutter mechanism 92 that opens and closes the nozzle exchange port 91. The shutter mechanism 92 includes a shutter plate 93 that slides along the nozzle exchange port 91, a motor 94 that serves as a drive source, a feed gear 95 that converts the rotation of the motor 94 into linear motion, and the feed gear 95 and a shutter. It is composed of a link member 96 that connects to and from the plate 93.

When the suction nozzle 87 in the cassette type suction nozzle replacement unit 81 set in the feeder set portion 24 of the component mounting machine 12 is held by the mounting head 16 of the component mounting machine 12, the mounting head 12 is held by the suction nozzle replacement unit 81. The nozzle exchange port 91 is moved upward, and the shutter plate 93 of the shutter mechanism 92 is opened to open the nozzle exchange port 91. Then, the rotary nozzle station 84 in the suction nozzle replacement unit 81 is appropriately rotated to position the suction nozzle 87 to be replaced this time at the nozzle replacement port 91, and then the nozzle holder of the mounting head 15 (shown). The suction nozzle 87 is held by the nozzle holder of the mounting head 15 through the nozzle exchange port 33, and then the nozzle holder of the mounting head 15 is raised to move the suction nozzle 87 to the rotary nozzle station. Take out from 84.

When returning the suction nozzle held in the nozzle holder of the mounting head 15 to the empty slot of the rotary nozzle station 84 in the suction nozzle replacement unit 81, the rotary nozzle station 84 is appropriately rotated to rotate the rotary nozzle station 84. The empty slot of the mounting head 15 is positioned at the nozzle exchange port 33, and the nozzle holder of the mounting head 15 is lowered so that the suction nozzle held in the nozzle holder of the mounting head 15 is returned to the empty slot of the rotary nozzle station 84. Just do it.

In the cassette case 83, a control device 97 for controlling the motor 89 of the rotary drive device 88 and the motor 94 of the shutter mechanism 92 is provided. In addition, although not shown, the cassette case 83 is provided with a communication / power supply connector connected to a communication / power supply connector on the component mounting machine 12 side.

As shown in FIG. 1, on the front side of the component mounting line 10, an automatic replacement device 26 for setting and removing the cassette type feeder 14 on the feeder setting unit 24 of each component mounting machine 12 is installed. The automatic exchange device 26 also sets and removes the cassette type suction nozzle exchange unit 81 to the feeder set unit 24 of each component mounting machine 12.

Below the feeder set portion 24 of each component mounting machine 12, a stock portion 71 for accommodating a plurality of feeders 14 to be set in the feeder set portion 24 and a suction nozzle replacement unit 81 is provided. The automatic replacement device 26 takes out the feeder 14 to be replaced and the suction nozzle replacement unit 81 from the feeder set unit 24 of the plurality of component mounting machines 12 and collects them in the stock unit 71, and also collects the production job (production program) from the stock unit 71. The feeder 14 and the suction nozzle replacement unit 81 specified in the above are taken out and set in the feeder setting unit 24 of the plurality of component mounting machines 12.

On the front side of the component mounting line 10, a guide rail 74 for moving the automatic switching device 26 in the left-right direction (X direction) along the arrangement of the component mounting machines 12 is provided so as to extend in the X direction over the entire component mounting line 10. The automatic replacement device 26 moves between the most upstream storage device 19 of the component mounting line 10 and the most downstream component mounting machine 12. The automatic replacement device 26 takes out the feeder 14 and the suction nozzle replacement unit 81 designated by the production job from the storage device 19 and transports them to the stock unit 71 of the designated component mounting machine 12, or the used feeder 14 and the like. The suction nozzle replacement unit 81 is taken out from the stock unit 71 and returned to the storage device 19.

As shown in FIG. 3, the control device 20 of each component mounting machine 12 of the component mounting line 10 and the control device 27 of the automatic replacement device 26 are production management computers 70 (production management) that manage the production of the entire component mounting line 10. The device) and the network 28 are connected to each other so as to be communicable with each other, and the operation of each component mounting machine 12 and the operation of the automatic switching device 26 of the component mounting line 10 are managed by the production management computer 70. Further, an optimization processing computer 61 (production job optimization device) that executes a process of optimizing a production job (production program) to be executed by each component mounting machine 12 is connected to the network 28. The optimization processing computer 61 is connected to an input device 62 such as a keyboard, a mouse, and a touch panel, and a display device 63 and the like that display the progress of the optimization processing of the production job. The computer 61 for optimization processing executes the optimization processing of the production job by executing the production job optimization processing program of FIG. 7 described later before the start of production, and the optimization processing of the production job even after the start of production. To continue.

The production control computer 70 acquires the production job optimized by the optimization processing computer 31 via the network 28 by executing the production control program of FIG. 8 described later, and controls the component mounting machine 12 of each component mounting machine 12. At the same time as transmitting to 20, the automatic switching device 26 is operated to change the feeder arrangement and suction nozzle arrangement of each component mounting machine 12 to the arrangement specified in the production job. The control device 20 of each component mounting machine 12 moves the mounting head 15 in the route of component suction position → component imaging position → component mounting position according to the production job received from the optimization processing computer 31, and supplies the mounting head 15 from the feeder 14. The operation of sucking the component to be mounted by the suction nozzle of the mounting head 15 and imaging the component with a component imaging camera, recognizing the amount of deviation of the component suction position, and mounting the component on the circuit board 11 is repeated. , A predetermined number of parts are mounted on the circuit board 11.

In the first embodiment, the production management computer 70 acquires a production job in the process of optimization from the optimization processing computer 61 before starting production, transmits the production job to each component mounting machine 12, and is designated by the production job. Production is started by the feeder arrangement and the suction nozzle arrangement, the optimization processing computer 61 continues the optimization processing of the production job even after the start of production, and the production management computer 70 is the optimization processing computer in the middle of production. The latest production job that has been optimized during production is acquired from 61, the production job executed by each component mounting machine 12 is updated, and the automatic switching device 26 is operated to arrange the feeders of each component mounting machine 12. The suction nozzle arrangement is changed to the arrangement specified in the production job, and production is continued. At this time, the feeder arrangement and the suction nozzle arrangement are changed in order from the component mounting machine 12 on the upstream side of the component mounting line 10 so that the production is not stopped when the production job is updated or the production stop time is minimized.

Next, the processing contents of the production job optimization processing program of FIG. 7 executed by the optimization processing computer 61 will be described. The production job optimization processing program of FIG. 7 is started before the start of production, and is executed even after the start of production until the end of production or the end of optimization.

When the production job optimization processing program of FIG. 7 is started, first, in step 101, the production job optimization process is executed, and in the next step 102, the progress of optimization of the production job is displayed on the display device 63. indicate. After that, the process proceeds to step 103, and it is determined whether or not there is a production start request. For example, the worker sees the progress of optimization of the production job displayed on the display device 63, and operates the input device 62 when the progress of optimization determined by the worker to be able to start production is reached. A production start request is input, or a target value of the progress of optimization for starting production is set in advance by an operator operating the input device 62, and the progress of optimization of the production job is set. When the target value is reached, the production start request may be automatically generated.

In step 103, the processes of steps 101 to 103 are repeatedly executed until it is determined that there is a production start request. After that, when it is determined in step 103 that there is a production start request, the process proceeds to step 104, the production job in the process of optimization is transmitted to the production management computer 70, and in the next step 105, the production job is optimized. The conversion process is continued, and in the following step 106, information on the progress of optimization of the production job after the start of production and the effect of improving the production efficiency when updating to the latest production job is displayed on the display device 63. At this time, the information on the effect of improving the production efficiency when the latest production job is updated is calculated by the optimization processing computer 61 based on the progress of the optimization of the production job after the start of production. Information on this effect of improving production efficiency can be obtained, for example, by reducing the production time (planned production end time), shortening the tact time, comparing the production time before and after updating the production job (planned production end time), and displaying the tact time. Any of the comparison display and the like may be used, and the point is that the information may be such that the operator can easily understand how much the production end time can be advanced by updating the production job.

After that, the process proceeds to step 107 to determine whether or not there is a production job update request. For example, the worker sees the information on the progress of optimization of the production job after the start of production displayed on the display device 63 and the effect of improving the production efficiency when updating to the latest production job, and the worker selects the production job. When it is determined that the production efficiency can be improved to some extent (the production end time can be advanced to some extent) by updating, the input device 62 is operated to input the production job update request, or the production job is updated in advance. The operator operates the input device 62 to set the target value of the degree of progress of optimization (or the effect of improving production efficiency such as the amount of shortening of production time), and the degree of progress of optimization (or production time) of the production job. The production job update request may be automatically generated when the target value is reached.

If it is determined in step 107 that there is a production job update request, the process proceeds to step 108, and the latest production job that has been optimized during production is transmitted to the production management computer 70. After that, the process of steps 105 to 107 is repeated to continue the optimization process of the production job, and the progress of the optimization of the production job is displayed on the display device 63. This makes it possible to update the production job a plurality of times during production.

Then, if it is determined in step 107 that there is no production job update request, the process proceeds to step 109, it is determined whether or not the production is finished or the optimization is finished, and the above steps are taken until it is determined that the production is finished or the optimization is finished. The process of 105 to 107 is repeated to continue the optimization process of the production job, and the program is terminated when it is determined in step 109 that the production is finished or the optimization is finished.

Next, the processing contents of the production control program of FIG. 8 executed by the production control computer 70 will be described. The production control program of FIG. 8 is started before the start of production. First, in step 121, it is determined in the same manner as in step 103 of FIG. 7 whether or not there is a production start request, and it is determined that there is a production start request. Wait until it is done.

After that, when it is determined in step 121 that there is a production start request, the process proceeds to step 122, the production job in the middle of optimization is acquired from the optimization processing computer 61, and in the next step 123, each component mounting machine is acquired. The production job in the process of optimization is transmitted to 12, and in the following step 124, the automatic switching device 26 is operated to change the feeder arrangement and suction nozzle arrangement of each component mounting machine 12 to the arrangement specified in the production job. , Each component mounting machine 12 is operated to start production (step 125).

After that, the process proceeds to step 126 to determine whether or not there is a production job update request in the same manner as in step 107 of FIG. 7, and if it is determined that there is no production job update request, the process proceeds to step 127 to produce. It is determined whether or not the production is finished, and if it is determined that the production is not finished, the process returns to step 126 and the production is continued.

After that, if it is determined in step 126 that there is a production job update request, the process proceeds to step 128, the latest production job whose optimization has progressed during production is acquired from the optimization processing computer 61, and the next In step 129, the latest production job is transmitted to each component mounting machine 12, the production job executed by each component mounting machine 12 is updated, and in the following step 130, the automatic switching device 26 is operated to operate each component mounting machine 12. The feeder arrangement and the suction nozzle arrangement of the above are changed to the arrangement specified in the production job, and the production is continued in the latest production job (step 131).

After that, the process returns to step 126, determines whether or not there is a production job update request, and repeats the above-described processing according to the determination result. This makes it possible to update the production job a plurality of times during production. After that, when it is determined in step 127 that the production is finished, the program is terminated.

In the first embodiment described above, when the optimization processing computer 61 performs some production job optimization processing before the start of production, the production job in the middle of optimization is transmitted to each component mounting machine 12. Production is started, the optimization process of the production job is continued even after the start of production, and then the latest production job whose optimization has progressed in the middle of production is transmitted to each component mounting machine 12, and each component mounting machine 12 In addition to updating the production job to be executed, the automatic switching device 26 is operated to change the feeder arrangement and suction nozzle arrangement of each component mounting machine 12 to the arrangement specified in the production job so that production can be continued. .. In this way, by starting production with a production job in the middle of optimization without waiting for the end of the optimization process of the production job, the production start time is advanced, and then the latest optimization is advanced in the middle of production. By changing to the production job of the above and continuing production, it is possible to improve production efficiency and shorten production time from the middle of production, and simultaneously satisfy two conflicting requirements of early start of production and shortening of production time. be able to.

Next, Example 2 will be described with reference to FIGS. 9 and 10. However, substantially the same parts as those in the first embodiment are designated by the same reference numerals to omit or simplify the description, and mainly different parts will be described.

For example, during production, the suction condition is changed because the suction rate of a specific part is poor in any part mounting machine 12 of the part mounting line 10, or the problem of the payload of the part sucked to the suction nozzle causes the problem. The operating conditions of the component mounting machine 12 may be changed, such as by slowing down the transport speed of parts. In that case, the tact time of only the component mounting machine 12 becomes slow and the line balance is lost, resulting in poor production efficiency. It will decrease and the production time will become longer.

Therefore, in the second embodiment, the optimization processing computer 61 executes the production job optimization processing of FIG. 9, and the production management computer 70 executes the production management program of FIG. 10, so that the control is performed as follows. To do.

The production management computer 70 acquires a production job for which the optimization processing computer 61 has performed the optimization processing before the start of production and transmits the production job to each component mounting machine 12, and also operates the automatic switching device 26 to operate each component. The feeder arrangement and suction nozzle arrangement of the mounting machine 12 are changed to the arrangement specified in the production job, and each component mounting machine 12 is operated to start production. Further, when the production management computer 70 monitors the operating status of each component mounting machine 12 during production and changes the operating condition of any of the component mounting machines 12, the changed operating condition is optimized for processing. It is transmitted to the computer 61.

After that, the optimization processing computer 61 executes the optimization processing of the production job using the changed operating conditions acquired from the production management computer 70, and transmits the optimized production job to the production management computer 70. ..

After that, the production management computer 70 transmits the production job acquired from the optimization processing computer 61 to each component mounting machine 12, updates the production job executed by each component mounting machine 12, and automatically replaces the device 26. Is operated to change the feeder arrangement and suction nozzle arrangement of each component mounting machine 12 to the arrangement specified in the production job, and production is continued.

Next, the processing contents of the production job optimization processing program of FIG. 9 executed by the optimization processing computer 61 will be described. The production job optimization processing program of FIG. 9 is started before the start of production and is executed until the end of production.

When the production job optimization processing program of FIG. 9 is started, first, in step 201, the production job optimization process is executed, and in the next step 202, it is determined whether or not the production job optimization is completed. At this time, the worker sees the progress of optimization of the production job displayed on the display device 63, and operates the input device 62 when the progress of optimization determined by the worker to be able to start production is reached. The optimization process of the production job is completed, or the target value of the progress of the optimization for starting the production is set in advance by the operator by operating the input device 62 to optimize the production job. The optimization process of the production job may be automatically terminated when the progress of the above reaches the target value.

In step 202, the production job optimization process is continued until it is determined that the production job optimization is completed. After that, when it is determined in step 202 that the optimization of the production job is completed, the process proceeds to step 203, and the optimized production job is transmitted to the production management computer 70 to start production.

After that, the process proceeds to step 204, and it is determined whether or not the operating conditions of any of the component mounting machines 12 have been changed (whether or not the changed operating conditions have been transmitted from the production management computer 70), and component mounting is performed. If the operating conditions of the machine 12 have not been changed, the process proceeds to step 205, it is determined whether or not the production has ended, and if it is in production, the process returns to step 204. As a result, it waits until the operating conditions of any of the component mounting machines 12 are changed during production.

After that, when it is determined in step 204 that the operating conditions of any of the component mounting machines 12 have been changed, the process returns to step 201, and the production job is performed using the changed operating conditions acquired from the production management computer 70. The optimization process of the above is executed, and when the optimization process is completed, the optimized production job is transmitted to the production management computer 70 (steps 202 to 203). As a result, the production job executed by each component mounting machine 12 is updated to continue production, and the process waits until the operating conditions of any of the component mounting machines 12 are changed during the production (steps 204 to 205). By such processing, every time the operating condition of any of the component mounting machines 12 is changed during production, the optimization process of the production job is executed using the changed operating condition, and each component mounting machine 12 The production job to be executed is updated. After that, when it is determined in step 205 that the production has ended, the program ends.

Next, the processing contents of the production control program of FIG. 10 executed by the production control computer 70 will be described. The production control program of FIG. 10 is started before the start of production. First, in step 211, it is determined in the same manner as in step 202 of FIG. 9 whether or not the optimization of the production job is completed, and the optimization of the production job is performed. Wait until it is determined to be finished. After that, when it is determined in step 211 that the optimization of the production job is completed, the process proceeds to step 212 to acquire the optimized production job from the optimization processing computer 61, and in the next step 213, each component is mounted. The optimized production job is transmitted to the machine 12, and in the following step 214, the automatic switching device 26 is operated to change the feeder arrangement and suction nozzle arrangement of each component mounting machine 12 to the arrangement specified in the production job. , Each component mounting machine 12 is operated to start production (step 215).

During production, in step 216, the operating status of each component mounting machine 12 is monitored to determine whether or not the operating conditions of any of the component mounting machines 12 have been changed, and the operating conditions of the component mounting machine 12 have changed. If not, the process proceeds to step 217 to determine whether or not the production has ended, and if the product is in production, the process returns to step 215 to continue the production.

After that, when it is determined in step 216 that the operating conditions of any of the component mounting machines 12 have been changed, the process proceeds to step 218, and the changed operating conditions are transmitted to the optimization processing computer 61 to step. Return to 211. After that, the optimization processing of the production job is executed using the changed operating conditions acquired by the optimization processing computer 61, and when the optimization processing is completed, the optimization is performed using the changed operating conditions. The produced production job is acquired from the optimization processing computer 61, the production job is transmitted to each component mounting machine 12, the production job executed by each component mounting machine 12 is updated, and the automatic switching device 26 is operated. The feeder arrangement and the suction nozzle arrangement of each component mounting machine 12 are changed to the arrangement specified in the production job, and the production is continued (steps 211 to 215). As a result, every time the operating conditions of any of the component mounting machines 12 are changed during production, the production job optimization process is executed using the changed operating conditions, and the production executed by each component mounting machine 12 is executed. The job is updated. After that, when it is determined in step 217 that the production is finished, the program is terminated.

In the second embodiment described above, when the operating conditions of any of the component mounting machines 12 are changed during production, the optimization processing computer 61 performs the optimization processing of the production job using the changed operating conditions. Since the production job can be updated by executing and transmitting the optimized production job to each component mounting machine 12, the line balance is maintained even when the operating conditions of any component mounting machine are changed during production. It is possible to prevent it from collapsing and prevent a decrease in production efficiency.

In addition, Example 2 may be carried out in combination with Example 1. In short, every time the operating conditions of any of the component mounting machines 12 are changed during the production of the first embodiment (the optimization processing is continuing), the production job optimization processing is executed using the changed operating conditions. Then, the production job executed by each component mounting machine 12 may be updated.

Further, in the first and second embodiments, both the feeder arrangement and the suction nozzle arrangement are changed by the automatic switching device 26, but only the feeder arrangement may be changed.

In addition, the present invention is not limited to Examples 1 and 2, and the configuration of the component mounting line 10 is changed, the configuration of the automatic replacement device 26 is changed, and the configuration of the feeder 14 and the suction nozzle replacement unit 81 is changed. Alternatively, the production management computer 70 is also used as the optimization processing computer 61, and the production management computer 70 executes the production job optimization processing programs of FIGS. 7 and 9 to optimize the production job. Needless to say, it can be changed in various ways within the range that does not deviate from the gist, such as the fact that it may be changed.

10 ... component mounting line, 11 ... circuit board, 12 ... component mounting machine, 14 ... cassette type feeder, 15 ... mounting head, 16 ... head moving device, 19 ... storage device, 20 ... component mounting machine control device, 24 ... Feeder set unit, 26 ... Automatic switching device, 27 ... Automatic switching device control device, 61 ... Optimization processing computer (production job optimization device), 63 ... Display device, 70 ... Production control computer (production management device) ), 71 ... Stock unit, 81 ... Cassette type suction nozzle replacement unit, 87 ... Suction nozzle

Claims (2)

A component mounting machine that sucks the components supplied from the feeder with a suction nozzle and mounts them on the circuit board.
The production job currently being produced is started in the middle of the production by causing the component mounting machine to start the mounting according to the acquired production job provided in the component mounting machine and the component mounting board is being produced. A control device that acquires a more optimized production job and continues production according to the further optimized production job.
An automatic switching device that automatically replaces the feeder arrangement of the component mounting machine with the feeder arrangement specified in the further optimized production job when the production is continued.
Parts mounting line with. According to the received production job in the middle of optimization, the component mounting machine sucks the components supplied from the feeder with the suction nozzle and mounts them on the circuit board to start the production of the component mounting board, and in the middle of the production. The step of acquiring a production job that is more optimized than the production job currently being produced by the component mounting machine,
A step in which an automatic switching device that automatically replaces the feeder arrangement of the feeder arranged in the component mounting machine changes the feeder arrangement of the component mounting machine to the feeder arrangement specified in the further optimized production job.
With the modified feeder placement, the steps by which the component mounter continues production according to the more optimized production job, and
Production method of component mounting board with.

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