JP7189909B2 - Component mounting line and component mounting board production method - Google Patents

Description

This specification discloses a component mounting line equipped with an automatic changer for automatically changing the feeder arrangement of a component mounter to a feeder arrangement specified in a production job, and a method of producing a component mounted board.

2. Description of the Related Art Conventionally, in order to increase the production efficiency of a component mounting line, optimization of production jobs executed by each component mounter has been performed. Conventional general optimization methods are described in Patent Document 1 (JP 2002-171097), Patent Document 2 (JP 2008-218970), and Patent Document 3 (JP 2004-79962). As described above, optimize the mounting order of components to be mounted on the circuit board and optimize the layout of the feeder set in the component mounter to minimize the movement distance and movement time of the mounting head (suction nozzle). We try to optimize the production jobs so that we can obtain the highest production efficiency.

In general, a component mounting line uses multiple component mounters to mount a large number of components on a circuit board. be a number. Therefore, it takes a long time until the personal computer completely completes the optimization processing of the production jobs of the mounters. Depending 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. As described in Document 5 (Japanese Unexamined Patent Application Publication No. 2009-49440), some users end the optimization process halfway and execute production with the feeder arrangement specified in the production job during the optimization. sometimes.

JP-A-2002-171097 Japanese Patent Application Laid-Open No. 2008-218970 JP-A-2004-79962 Japanese Patent Application Laid-Open No. 2003-283198 JP 2009-49440 A

However, if production is started with a production job that is in the middle of optimization, production will be executed in a state of low production efficiency, which will lengthen the production time and delay the end of production. On the other hand, if production is started after the optimization processing of the production job 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, there are provided a component mounter that sucks components supplied from a feeder with a suction nozzle and mounts them on a circuit board, a control device provided in the component mounter, and a feeder arrangement of the component mounter. wherein the control device optimizes a production job started before the start of production of component-mounted boards by an optimization processing program executed by a production management computer. During the continuation of the arithmetic processing, a production job in the intermediate stage of the arithmetic processing, which is a production job in which the production efficiency is still low, is acquired from the production control computer, and the component mounter according to the production job in the intermediate stage. is caused to start the mounting to start the production of component-mounted boards, and in the middle of the production, the production job whose production efficiency has been improved by advancing the arithmetic processing of the optimization processing by the optimization processing program is transferred to the production management computer. and continue production according to the production job with improved production efficiency, and the automatic exchange device, every time the production job with improved production efficiency is acquired during the production , the component mounter The feeder arrangement is automatically changed from the feeder arrangement specified in the production job in the intermediate stage of the arithmetic processing to the feeder arrangement specified in the production job in which the production efficiency is improved .

In short, when the optimization processing of the production job has been performed to some extent by the optimization processing program before the start of production, the production job in the middle of the optimization processing is transmitted to the component mounter and production is started. After that, continue the optimization processing of the production job by the optimization processing program , and then transmit the latest production job that has been optimized in the middle of production to the component mounter and update the production job executed by the component mounter. At the same time, the automatic changer is operated to change the feeder arrangement of the component mounting machine to the feeder arrangement specified in the latest optimized production job to continue production. In this way, by starting production with a production job in the middle of the optimization process without waiting for the end of the optimization process of the production job by the optimization process program , the production start time can be shortened, and then production can be started. By continuing production by changing to the latest optimized production job in the middle, it is possible to improve production efficiency and shorten production time from the middle of production, which means early start of production and shortening of production time. Two conflicting requirements can be satisfied at the same time.

FIG. 1 is a perspective view showing the configuration of the entire component mounting line of Example 1. FIG. FIG. 2 is a perspective view schematically showing the configuration of an automatic changer and a component mounter. FIG. 3 is a block diagram schematically showing the construction of a production control system for a component mounting line with an automatic changer. 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 a rotary nozzle station is removed from a cassette type suction nozzle replacement unit. FIG. 7 is a flow chart showing the processing flow of the production job optimization processing program of the first embodiment. FIG. 8 is a flow chart showing the processing flow of the production control program of the first embodiment. FIG. 9 is a flow chart showing the processing flow of the production job optimization processing program of the second embodiment. FIG. 10 is a flow chart showing the processing flow of the production control program of the second embodiment.

Two examples 1 and 2 are described below.

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

The component mounting line 10 is configured by arranging a plurality of component mounters 12 along the conveying direction (X direction) of the circuit board 11 . and a storage device 19 for storing the cassette-type feeder 14 (see FIG. 4) and the cassette-type suction nozzle replacement unit 81 (see FIGS. 5 and 6). ing.

As shown in FIG. 2, each component mounter 12 includes two conveyors 13 for conveying the circuit board 11, and a suction nozzle for sucking components supplied from a cassette-type feeder 14 and mounting them on the circuit board 11. (not shown) in a replaceable manner, a head moving device 16 for moving the mounting head 15 in the XY directions (horizontal and forward/backward directions), and a display device 23 such as a liquid crystal display or CRT. ing.

Each component mounter 12 of the component mounting line 10 conveys the circuit board 11 conveyed from the component mounter 12 on the upstream side to a predetermined position by the conveyor 13 and clamps the circuit board 11 with a clamping mechanism (not shown). A component that is clamped and supplied from a cassette-type feeder 14 is sucked by the suction nozzle of the mounting head 15, moved from the suction position to the imaging position, and the component is picked up from the lower surface side by a component imaging camera ( (not shown) to determine the amount of displacement of the suction position of the component, correct the displacement of the suction position, and mount the component on the circuit board 11 on the conveyor 13 to produce the component-mounted board. .

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

A cassette case 32 of the cassette-type feeder 14 is formed of a transparent or opaque plastic plate, metal plate, or the like, and its side portion (cover) can be opened and closed. A tape loading section 35 is provided in the cassette case 32 to detachably (replaceably) load a 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 section 35 .

Inside the cassette case 32, there is provided a tape feeding mechanism 38 for feeding the component supply tape 33 pulled out from the tape reel 34 to the component pickup position, and a top film 40 (also called a cover tape) from the component supply tape 33 before the component pickup position. A top film peeling mechanism 39 is provided for peeling to expose the components in the component supply tape 33 .

The tape feeding mechanism 38 is composed of a sprocket 42 provided near the lower part of the component pickup position, a motor 43 for rotating the sprocket 42, and the like. By rotating the sprocket 42 with the teeth of the sprocket 42 engaged with the tape feed holes, the component supply tape 33 is pitch-fed to the component pickup position.

The top film peeling mechanism 39 includes a tape presser 45 for pressing the component supply tape 33 before the component suction position and peeling the top film 40 from the upper surface of the component supply tape 33, and the top film peeled by the tape presser 45. 40 is pulled in the direction opposite to the tape feeding direction and fed into the top film collecting section 46 at the top of the cassette case 32; a motor 48 for driving the top film feeding gear mechanism 47; ing.

At the edge of the cassette case 32 in the tape feed direction, 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 components have been picked up after passing through the component suction position is placed. A waste tape discharge passage 50 for guiding and discharging downward is provided so as to extend downward, and an outlet 50a of the waste tape discharge passage 50 is provided at a position below the center of the end face of the cassette case 32 in the tape feeding direction. It is

A controller 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 the cassette case 32 . In addition, although not shown, the cassette case 32 is provided with a communication/power connector connected to a communication/power connector on the mounter 12 side.

Next, the configuration of the cassette-type suction nozzle replacement unit 81 will be described with reference to FIGS. 5 and 6. FIG.
A cassette case 83 of the cassette-type suction nozzle replacement unit 81 is formed of a transparent or opaque plastic plate or metal plate, like the cassette-type feeder 14, and its side portion (cover) can be opened and closed. . In the cassette case 83, a circular recessed nozzle station loading section 85 for detachably (replaceably) loading a disk-shaped rotary nozzle station 84 is provided. (see FIG. 6) is provided toward the inside in the width direction of the cassette case 83, and the central portion of the rotary nozzle station 84 is detachably connected to the drive shaft 86 so as to be able to transmit rotation. A plurality of suction nozzles 87 for replacing the suction nozzles of the mounting head 15 of the component mounter 12 are radially arranged at a predetermined pitch and detachably held on the outer periphery of the rotary nozzle station 84 . ing.

On the other hand, a rotary drive device 88 for rotating the rotary nozzle station 84 is provided inside the cassette case 83 . The rotation drive device 88 is composed of 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 in the upper end surface of the cassette case 83 at a position corresponding to the uppermost end of the rotary nozzle station 84 (directly above the center of the rotary nozzle station 84). The suction nozzle 87 is exchanged between the rotary nozzle station 84 and the mounting head 16 of the component mounter 12 through the nozzle. The cassette case 83 is provided with a shutter mechanism 92 for opening and closing the nozzle replacement port 91 . The shutter mechanism 92 includes a shutter plate 93 that slides along the nozzle replacement 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, the feed gear 95 and the shutter. and a link member 96 that connects with the plate 93 .

When the mounting head 16 of the component mounter 12 holds the suction nozzle 87 in the cassette-type suction nozzle replacement unit 81 set in the feeder setting section 24 of the component mounter 12, the mounting head 12 is held by the suction nozzle replacement unit 81. , the shutter plate 93 of the shutter mechanism 92 is opened to open the nozzle replacement port 91 . Then, after appropriately rotating the rotary nozzle station 84 in the suction nozzle replacement unit 81 to position the suction nozzle 87 to be replaced this time in the nozzle replacement port 91, the nozzle holder (not shown) of the mounting head 15 is ) is lowered to allow the nozzle holder of the mounting head 15 to hold the suction nozzle 87 through the nozzle replacement 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 the suction nozzle held in the nozzle holder of the mounting head 15 is to be returned to the empty slot of the rotary nozzle station 84 in the suction nozzle replacement unit 81, the rotary nozzle station 84 is rotated as appropriate so that the rotary nozzle station 84 is positioned at the nozzle replacement port 33, the nozzle holder of the mounting head 15 is lowered, and the suction nozzle held by the nozzle holder of the mounting head 15 is returned to the empty slot of the rotary nozzle station 84. do it.

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 the cassette case 83 . In addition, although not shown, the cassette case 83 is provided with a communication/power connector connected to a communication/power connector on the mounter 12 side.

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

Below the feeder set section 24 of each component mounter 12, a stock section 71 is provided for storing a plurality of feeders 14 to be set in the feeder set section 24 and the suction nozzle replacement unit 81. As shown in FIG. The automatic exchange device 26 retrieves the feeders 14 to be exchanged and the suction nozzle exchange units 81 from the feeder setting units 24 of the plurality of component mounters 12 and collects them in the stock unit 71 , and also collects production jobs (production programs) from the stock unit 71 . The feeder 14 and the suction nozzle replacement unit 81 specified by , are taken out and set in the feeder setting section 24 of a plurality of component mounters 12 .

On the front side of the component mounting line 10, a guide rail 74 for moving the automatic changer 26 in the horizontal direction (X direction) along the arrangement of the component mounters 12 is provided so as to extend along the entire component mounting line 10 in the X direction. The automatic changer 26 moves between the most upstream storage device 19 of the component mounting line 10 and the most downstream component mounter 12 . The automatic exchange device 26 takes out the feeder 14 and the suction nozzle exchange unit 81 specified in the production job from the storage device 19, conveys them to the stock section 71 of the specified component mounter 12, and The suction nozzle replacement unit 81 is taken out from the stock section 71 and returned into the storage device 19 .

As shown in FIG. 3, the control device 20 of each component mounting machine 12 and the control device 27 of the automatic exchange device 26 of the component mounting line 10 are connected to a production control computer 70 (production control ) and the network 28, and the production control computer 70 controls the operation of each component mounting machine 12 and the automatic changer 26 of the component mounting line 10. FIG. Further, the network 28 is connected to an optimization processing computer 61 (production job optimization device) that executes processing for optimizing production jobs (production programs) to be executed by each mounter 12 . The optimization processing computer 61 is connected to an input device 62 such as a keyboard, mouse, touch panel, etc., and a display device 63 for displaying the progress of the optimization processing of the production job. The optimization processing computer 61 executes the production job optimization processing program shown in FIG. to continue.

The production management computer 70 acquires the production job optimized by the optimization processing computer 31 via the network 28 by executing the production management program shown in FIG. 20, and operates the automatic changer 26 to change the feeder arrangement and the suction nozzle arrangement of each component mounter 12 to the arrangement specified in the production job. The control device 20 of each component mounter 12 moves the mounting head 15 along the route of the component pick-up position→the component imaging position→the component mounting position according to the production job received from the optimization processing computer 31, and supplies the components from the feeder 14. The component to be mounted is picked up by the suction nozzle of the mounting head 15, the component is imaged by the component imaging camera, the shift amount of the component pickup position is recognized, and the component is mounted on the circuit board 11. , a predetermined number of components are mounted on the circuit board 11 .

In the first embodiment, the production management computer 70 acquires a production job in the middle of optimization from the optimization processing computer 61 before starting production, transmits it to each mounter 12, and transfers the production job specified by the production job. Production is started with the feeder arrangement and the suction nozzle arrangement, the optimization processing computer 61 continues the optimization processing of the production job even after the production is started, and the production control computer 70 operates the optimization processing computer during the production. The latest production job that has been optimized during production is acquired from 61 to update the production job executed by each component mounter 12, and the automatic changer 26 is operated to arrange the feeders of each component mounter 12. Production is continued by changing the arrangement of the suction nozzles to the arrangement specified in the production job. At this time, the feeder arrangement and the suction nozzle arrangement are sequentially changed from the component mounting machine 12 on the upstream side of the component mounting line 10 so as not to stop production when updating the production job or to minimize production stop time.

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 in FIG. 7 is started before production starts, and is executed after production starts until production ends or optimization ends.

When the production job optimization processing program of FIG. 7 is started, first, in step 101, the production job optimization processing is executed. indicate. After that, the process proceeds to step 103 to determine whether or not there is a production start request. For example, the operator 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 reaches the level at which the worker determines that production can be started. A production start request is input, or a target value for the degree of progress of optimization for starting production is set in advance by the operator by operating the input device 62, and the degree of progress of optimization of the production job is set. A production start request may be automatically generated when the target value is reached.

The processes of steps 101 to 103 are repeated until it is determined in step 103 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 to transmit the production job in the process of optimization to the production management computer 70, and in the next step 105, the production job is optimized. The optimization process is continued, and in subsequent step 106, the display device 63 displays the progress of optimization of the production job after the start of production and the effect of improving the production efficiency when the production job is updated to the latest production job. At this time, the optimization processing computer 61 calculates the information about the production efficiency improvement effect when updating to the latest production job based on the degree of progress of optimization of the production job after the start of production. The information on this production efficiency improvement effect is, for example, the amount of reduction in production time (scheduled production end time), the amount of reduction in tact time, a comparison display of production time (scheduled production end time) before and after updating the production job, and the takt time Any information such as a comparison display may be used, and in short, any information that allows the operator to easily understand how much the production finish time can be advanced by updating the production job can be used.

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

If it is determined at step 107 that there is a production job update request, the process proceeds to step 108 to transmit the latest production job optimized during production to the production management computer 70 . After that, the processing of steps 105 to 107 is repeated to continue the optimization processing of the production job, and the degree of progress of the optimization of the production job and the like are displayed on the display device 63 . This makes it possible to update a production job multiple times during production.

If it is determined in step 107 that there is no production job update request, the process proceeds to step 109 to determine whether production or optimization has ended. The processes 105 to 107 are repeated to continue the optimization process of the production job, and when it is determined in step 109 that the production or optimization is finished, this program ends.

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 in FIG. 8 is started before starting production. First, in step 121, it is determined whether or not there is a request to start production in the same manner as in step 103 in FIG. wait until

After that, when it is determined in step 121 that there is a production start request, the process proceeds to step 122 to acquire a production job in the middle of optimization from the optimization processing computer 61, and in the next step 123, each mounter 12, and in the next step 124, the automatic changer 26 is operated to change the feeder arrangement and the suction nozzle arrangement of each component mounter 12 to the arrangement specified in the production job. , each mounter 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 by the same method as step 107 in FIG. 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 to continue the production.

After that, if it is determined in step 126 that there is a production job update request, the process advances to step 128 to acquire the latest production job that has been optimized during production from the optimization processing computer 61. In step 129, the latest production job is transmitted to each component mounter 12 to update the production job executed by each component mounter 12, and in subsequent step 130, the automatic changer 26 is operated to are changed to those specified in the production job, and production is continued with the latest production job (step 131).

After that, returning to step 126, it is determined whether or not there is a production job update request, and the above-described processing is repeated according to the determination result. This makes it possible to update a production job multiple times during production. After that, when it is determined in step 127 that the production has ended, the program ends.

In the first embodiment described above, when the optimization processing computer 61 has optimized the production job to some extent before the start of production, the production job in the process of optimization is transmitted to each mounter 12. Production is started, and the optimization processing of the production job is continued even after the production is started. After that, the latest production job optimized in the middle of production is transmitted to each component mounter 12, and each component mounter 12 The production job to be executed is updated, and the automatic changer 26 is operated to change the feeder arrangement and the suction nozzle arrangement of each component mounter 12 to the arrangement specified in the production job, thereby continuing production. . In this way, by starting production with a production job that is in the middle of optimization without waiting for the end of the optimization processing of the production job, the production start time can be shortened. By changing to a production job and continuing production, it is possible to improve production efficiency from the middle of production and shorten production time, simultaneously satisfying the two conflicting demands 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. FIG. However, portions that are substantially the same as those in the first embodiment are denoted by the same reference numerals, and descriptions thereof are omitted or simplified, and different portions are mainly described.

For example, during production, the picking conditions of any of the component mounters 12 in the component mounting line 10 are changed due to a poor picking rate of a specific component, or the weight of the component to be picked up by the picking nozzle is changed. There are cases where the operating conditions of the component mounter 12 are changed, such as by slowing down the transport speed of the component. This will result in longer production times.

Therefore, in the second embodiment, the optimization processing computer 61 executes the production job optimization processing shown in FIG. 9, and the production management computer 70 executes the production management program shown in FIG. do.

The production management computer 70 acquires a production job that has been optimized by the optimization processing computer 61 before starting production, and transmits the production job to each component mounter 12. 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. Furthermore, the production control computer 70 monitors the operating status of each component mounter 12 during production, and when changing the operating conditions of any one of the component mounters 12, the changed operating conditions are used for optimization processing. Transfer to computer 61 .

After that, the optimization processing computer 61 executes 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 mounter 12 to update the production job executed by each component mounter 12, and the automatic changer 26 is operated to change the feeder arrangement and the suction nozzle arrangement of each mounter 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 shown in FIG. 9 is started before the start of production and 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 processing is executed, and in the next step 202, it is determined whether or not the optimization of the production job is completed. At this time, the worker sees the degree of progress of optimization of the production job displayed on the display device 63, and operates the input device 62 when the degree of progress of optimization reaches the degree at which the worker determines that production can be started. Alternatively, the operator operates the input device 62 to set a target value for the degree of progress of optimization for starting production in advance, thereby optimizing the production job. The optimization process of the production job may be automatically terminated when the degree of progress of the production job reaches the target value.

The optimization process of the production job is continued until it is determined in step 202 that the optimization of the production job has ended. After that, when it is determined in step 202 that the optimization of the production job is completed, the process proceeds to step 203 to transmit the optimized production job to the production control computer 70 and start production.

After that, the process advances to step 204 to determine whether or not the operating conditions of any of the component mounters 12 have been changed (whether or not the changed operating conditions have been transmitted from the production control computer 70). If the operating conditions of the machine 12 have not been changed, the process proceeds to step 205 to determine whether or not production has ended. This waits until the operating conditions of any mounter 12 are changed during production.

After that, when it is determined in step 204 that the operating conditions of any component mounter 12 have been changed, the process returns to step 201, and the production job is executed using the changed operating conditions acquired from the production control computer 70. is executed, and when the optimization process is completed, the optimized production job is transmitted to the production control computer 70 (steps 202 and 203). As a result, the production job executed by each component mounter 12 is updated to continue production, and waits until the operating conditions of any component mounter 12 are changed during the production (steps 204 and 205). Through such processing, every time the operating conditions of any component mounter 12 are changed during production, the optimization processing of the production job is executed using the changed operating conditions, and each component mounter 12 is The production job to run 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 explained. The production control program in FIG. 10 is started before starting production. First, in step 211, in the same manner as in step 202 in FIG. 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 mounting The optimized production job is transmitted to the mounter 12, and in the following step 214, the automatic changer 26 is operated to change the feeder arrangement and the suction nozzle arrangement of each component mounter 12 to the arrangement designated by the production job. , each mounter 12 is operated to start production (step 215).

During production, in step 216, the operating status of each component mounter 12 is monitored to determine whether or not the operating conditions of any component mounter 12 have been changed. If not, the process proceeds to step 217 to determine whether or not production is finished. If the production is in progress, the process returns to step 215 to continue production.

After that, when it is determined in step 216 that the operating conditions of any component mounter 12 have been changed, the process proceeds to step 218, where the changed operating conditions are transmitted to the optimization processing computer 61, and 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 changed operating conditions are used for optimization. The optimized production job is acquired from the optimization processing computer 61, the production job is transmitted to each component mounter 12, the production job executed by each component mounter 12 is updated, and the automatic changer 26 is operated. Then, the feeder arrangement and suction nozzle arrangement of each mounter 12 are changed to the arrangement specified in the production job, and production is continued (steps 211 to 215). As a result, every time the operating conditions of one of the component mounters 12 are changed during production, the production job optimization process is executed using the changed operating conditions. Job is updated. After that, when it is determined in step 217 that the production has ended, the program ends.

In the second embodiment described above, when the operating conditions of any component mounter 12 are changed during production, the optimization processing computer 61 uses the changed operating conditions to optimize the production job. can be executed to transmit the optimized production job to each component mounter 12 and update the production job, so even if the operating conditions of any component mounter are changed during production, the line balance is maintained. It can be prevented from collapsing, and a decrease in production efficiency can be prevented.

In addition, you may implement Example 2 in combination with Example 1. FIG. In short, every time the operating conditions of any component mounter 12 are changed during production (during the continuation of the optimization process) in the first embodiment, the production job optimization process is executed using the changed operating conditions. Then, the production job executed by each mounter 12 may be updated.

In the first and second embodiments, both the feeder arrangement and the suction nozzle arrangement are changed by the automatic changer 26, but only the feeder arrangement may be changed.

In addition, the present invention is not limited to Embodiments 1 and 2, and the configuration of the component mounting line 10 may be changed, the configuration of the automatic changer 26 may be changed, or the configuration of the feeder 14 or the suction nozzle replacement unit 81 may be changed. Alternatively, the production control computer 70 is also used as the optimization processing computer 61, and the production control computer 70 executes the production job optimization processing program shown in FIGS. 7 and 9 to optimize the production job. It goes without saying that various modifications can be made without departing from the scope of the invention, such as the modification being possible.

DESCRIPTION OF SYMBOLS 10... Component mounting line, 11... Circuit board, 12... Component mounter, 14... Cassette-type feeder, 15... Mounting head, 16... Head moving device, 19... Storage device, 20... Controller for component mounter, 24 Feeder setting section 26 Automatic exchange device 27 Control device for automatic exchange device 61 Optimization processing computer (production job optimization device) 63 Display device 70 Production control computer (production control device ), 71... Stock portion, 81... Cassette-type suction nozzle replacement unit, 87... Suction nozzle

Claims (2)

a component mounter that picks up components supplied from a feeder with a pick-up nozzle and mounts them on a circuit board;
a control device provided in the component mounting machine;
an automatic changer for automatically changing the feeder arrangement of the component mounter;
has
During the continuation of the arithmetic processing of the optimization processing for optimizing the production job, which the optimization processing program executed by the production management computer starts before the production of the component-mounted boards, A production job at a stage where the production efficiency is still low is obtained from the production control computer, and the component mounter is caused to start the mounting according to the production job at the intermediate stage to produce the component-mounted board. In the middle of the production, a production job whose production efficiency has improved as a result of the optimization processing by the optimization processing program is acquired from the production management computer, and the production job whose production efficiency has improved is obtained. continue production according to
Each time the production job with improved production efficiency is obtained during the production, the automatic changer changes the feeder arrangement of the component mounter to the feeder arrangement designated by the production job at the intermediate stage of the arithmetic processing. A component mounting line that automatically changes from the feeder arrangement to the one specified by the production job with improved production efficiency . During the continuation of the calculation process of the optimization process for optimizing the production job that the optimization process program executed on the production control computer started before the production of the component mounting board started, in the production job in the middle of the calculation process a step in which the mounter acquires a production job whose production efficiency is still low from the production management computer ;
a step of causing a component mounter to pick up a component supplied from a feeder with a suction nozzle and mount the component on a circuit board in accordance with the acquired production job in the intermediate stage, thereby starting production of the component-mounted board;
a step in which the component mounter obtains from the production management computer, during the production, a production job in which the optimization processing by the optimization processing program has progressed and the production efficiency has improved ;
An automatic changer for automatically changing the feeder arrangement of the feeders arranged in the component mounter every time the production job with the improved production efficiency is acquired during the production , wherein the feeder arrangement of the component mounter is changed to : a step of changing the feeder arrangement specified in the production job in the intermediate stage of the arithmetic processing to the feeder arrangement specified in the production job in which the production efficiency is improved ;
continuing production by the mounter according to the production job for which the production efficiency is improved with the changed feeder arrangement;
A method for producing a component mounting board having

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