JP7150888B2 - Component mounting system - Google Patents

Description

Disclosed herein is a component mounting system.

2. Description of the Related Art Conventionally, in order to increase the production efficiency of a component mounting line, optimization of jobs to be executed by each component mounter has been performed. Conventional general optimization methods optimize the mounting order of the components to be mounted on the circuit board, optimize the layout of the feeders set in the component mounter, and reduce the travel distance and travel time of the mounting head (suction nozzle). We try to optimize the job so that the highest production efficiency can be obtained by, for example, minimizing the In such a component mounting line, it has been proposed to reset the job for all component mounters when the actual job processing time exceeds the target time (Patent Document 1).

International Publication No. 2018/087854 pamphlet

However, in Japanese Unexamined Patent Application Publication No. 2002-100000, job resetting is performed for all component mounters constituting a component mounting line, and thus resetting may take a long time. In addition, when a plurality of component mounters that are separated from each other are subject to job resetting, the moving distance for rearranging the feeders becomes long, and the rearrangement sometimes takes a long time accordingly.

The present disclosure has been made in view of such a problem, and is intended to perform job resetting in a short time, and to perform work for rearranging component supply devices according to the reset job in a short time. The main purpose is to

The component mounting system of the present disclosure includes:
a component mounting line configured by arranging a plurality of component mounters in which a plurality of component supply devices are detachably set and which mounts components supplied by the component supply devices onto a mounting object, arranged along a conveying direction of the mounting object;
a management device that manages the component mounting line;
A component mounting system comprising
The management device
a job setting unit that sets a job related to component mounting assigned to each component mounter so that the scheduled job processing time of each component mounter falls within a first allowable range;
If, among the plurality of component mounters, there is a component mounter whose job processing actual working time exceeds the first allowable range due to the need to adjust itself after starting production with the job set for itself For example, the component mounters exceeding the first allowable range and the component mounters connected thereto, which are less than the total number in total, are set as targets for job resetting, and each component mounter for which the job is reset is set. The job to be assigned is reconfigured so that the scheduled job processing time of each of the component mounters subject to job resetting falls within the second allowable range, taking into consideration the cause of the actual job processing time exceeding the first allowable range. a job resetting unit to be set;
Prepare.

In this component mounting system, job resetting targets are limited to component mounters whose actual job processing time exceeds the first allowable range and component mounters connected thereto whose total number is less than the total number. Therefore, the time required for job resetting can be shortened compared to the case where the job resetting targets are all the component mounters constituting the component mounting line. Also, the job reset targets are the component mounters whose job processing actual working time exceeds the first allowable range and the component mounters connected thereto, and are grouped together. Therefore, the movement distance for rearranging the component supply device according to the reset job can be shortened, and the work required for the rearrangement can be completed in a short time.

Note that the second allowable range may be the same as or different from the first allowable range.

1 is a perspective view showing an outline of a component mounting system 10; FIG. FIG. 2 is a perspective view showing an outline of the component mounter 20; 2 is a block diagram showing a configuration related to control of the component mounting system 10; FIG. Flowchart of a production job setup routine. 4 is a graph showing an example of a scheduled cycle time of each component mounter 20 constituting the component mounting line 12; 4 is a graph showing an example of an actual operation cycle time of each component mounter 20 that constitutes the component mounting line 12; Flowchart of a production job reset routine. 4 is a graph showing an example of correction cycle time of each component mounter 20 constituting the component mounting line 12; Flowchart of another production job resetting routine.

Next, embodiments for implementing the present disclosure will be described with reference to the drawings. FIG. 1 is a perspective view showing an outline of a component mounting system 10 of this embodiment, FIG. 2 is a perspective view showing an outline of a component mounting machine 20, and FIG. . Note that the left-right direction in FIG. 1 is the X direction, the front-rear direction is the Y direction, and the up-down direction is the Z direction.

The component mounting system 10 includes a component mounting line 12, a feeder storage 60, a loader 50, and a management computer 80, as shown in FIG. A plurality of component mounters 20 are arranged in the X-axis direction on the component mounting line 12 . The component mounter 20 mounts the component supplied from the feeder 30 on the board S. The feeder storage 60 is arranged upstream of the most upstream component mounter 20 in the component mounting line 12 and stores the feeder 30 to be used by the component mounter 20 and the used feeder 30 . The loader 50 can automatically exchange the feeder 30 with the component mounting machine 20 and with the feeder storage 60 . A management computer 80 manages the entire system.

As shown in FIG. 2, the component mounter 20 includes a board transfer device 21 for transferring a board S in the X direction, a head 22 having nozzles for picking up components supplied by a feeder 30, and moving the head 22 in the XY directions. and a touch panel display 27 (see FIG. 1). The component mounter 20 also includes a mounting control device 28 (see FIG. 3) configured with a well-known CPU, ROM, RAM, and the like. The mounting control device 28 controls the component mounter 20 as a whole. The mounting control device 28 can input/output signals to/from the board transfer device 21, the head 22, the head moving mechanism 23, the touch panel display 27, and the like. In addition, the mounter 20 has two front areas, upper and lower, to which the feeder 30 can be attached. The upper area is a supply area 20A where the feeder 30 can supply parts, and the lower area is a stock area 20B where the feeder 30 can be stocked. The supply area 20A and the stock area 20B are provided with a feeder table 40 having an L shape when viewed from the side. A plurality of feeders 30 are attached to each feeder table 40 .

The feeder 30, as shown in FIG. 2, is configured as a tape feeder that feeds a tape containing components at a predetermined pitch. The feeder 30 includes a tape reel 32 around which a tape is wound, a tape feeding mechanism 33 for feeding the tape from the tape reel 32, and a feeder control device 34 (see FIG. 3). In addition, as shown in FIG. 2, the feeder table 40 has a plurality of slots 42 arranged in the X direction at intervals that allow the feeders 30 to be inserted. When the feeder 30 is inserted into the slot 42 of the feeder base 40 , the connector (not shown) of the feeder 30 is connected to the connector 45 of the feeder base 40 . As a result, the feeder control device 34 can communicate with the control unit (mounting control device 28, management computer 80, etc.) to which the feeder 30 is attached. The feeder control device 34 feeds the components stored on the tape to a predetermined component supply position by the tape feed mechanism 33, and when the component at the component supply position is sucked by the nozzle of the head 22, the components stored on the tape are fed again. The tape feed mechanism 33 feeds the tape to a predetermined component supply position.

As shown in FIG. 1, the loader 50 moves along an X-axis rail 18 provided in front of the plurality of component mounters 20 and in front of the feeder storage 60 in parallel with the board transfer direction (X direction). It is movable. The loader 50 includes a loader moving mechanism 51 and a feeder transfer mechanism 53, as shown in FIGS. The loader moving mechanism 51 moves the loader 50 along the X-axis rails 18 . The feeder transfer mechanism 53 attaches the feeder 30 from the loader 50 to the component mounter 20 or the feeder storage 60, removes the feeder 30 from the component mounter 20 or the feeder storage 60 and stores it in the loader 50, or performs an upper transfer. The feeder 30 is moved between the loading area 50A and the lower transfer area 50B. The loader 50 also includes an encoder 55 and a loader controller 57, as shown in FIG. The encoder 55 detects the movement position of the loader 50 in the X direction. The loader control device 57 is composed of a well-known CPU, ROM, RAM, and the like. The loader control device 57 receives detection signals from the encoder 55 and outputs drive signals to the loader moving mechanism 51 and the feeder transfer mechanism 53 .

The feeder storage 60 has a feeder table 40 having the same configuration as the feeder table 40 provided in the component mounter 20 in order to accommodate a plurality of feeders 30 .

The management computer 80 comprises a known CPU 80a, ROM 80b, RAM 80c, HDD 80d, etc., as shown in FIG. The HDD 80d of the management computer 80 stores a production program (a program related to a plan that defines what kind of parts are to be mounted on the board S, how many boards S are to be produced with such parts mounted, etc.) and production jobs (parts For each mounting machine 20, a job defining which feeder 30 is to be set on the feeder table 40 in what order, and which component type components are to be mounted on the board S in what order, etc., is stored. The production program is stored in the HDD 80d of the management computer 80 by operating the input device 84 by the operator. A production job is set based on a production program by the CPU 80a of the management computer 80, as will be described later, and stored in the HDD 80d. The management computer 80 is connected to the mounting control device 28 and the loader control device 57 so as to be able to communicate bidirectionally. The management computer 80 receives information about the mounting status of the component mounter 20 from the mounting control device 28 and receives information about the drive status of the loader 50 from the loader control device 57 . The management computer 80 is communicably connected to the feeder control device 34 of the feeder 30 stored in the feeder storage 60 and is capable of acquiring information on the stored feeder 30 .

Next, a production job setting routine executed by the management computer 80 of the component mounting system 10 configured as described above will be described. FIG. 4 is a flow chart of the production job setting routine. This production job setting routine is a process of optimizing the production job so that the production efficiency in the component mounting line 12 is as high as possible.

When this production job setting routine is started, the CPU 80a of the management computer 80 reads the current production program from the HDD 80d (S110). Next, the CPU 80a executes an optimization process targeting all the component mounters 20 constituting the component mounting line 12 (S120), and obtains an optimized production job set (production jobs of all the component mounters 20 are ) is stored in the HDD 80d (S130), and the routine ends.

In the optimization process, the CPU 80a is designed so that the scheduled processing time (scheduled cycle time) of the production job in each component mounter 20 is within a predetermined allowable range and the production time in the component mounting line 12 is minimized. Discover production job sets. When generating a production job, the CPU 80a sets a mounting sequence based on a production program, distributes the mounting sequence to each mounter 20, and sets the mounting order of the distributed components for each mounter 20. Then, the arrangement of the feeders 30 is set for each component mounter 20, and production jobs for all the component mounters 20 are generated. The mounting sequence is set by designating the component type, the mounting position, and the type of nozzle to be used (nozzle type to be used) in order of mounting. The distribution of the mounting sequences to each component mounter 20 is performed so that the number of mounting sequences distributed to each component mounter 20 is equal or as equal as possible. The mounting order of the components is set so that, for example, when the components are mounted on the board S, the mounting of the components is not hindered by the previously mounted components. The arrangement of the feeders 30 is set, for example, such that the feeder 30 that supplies a larger number of components to be mounted on the board S in each mounter 20 is closer to the center of the feeder table 40 . Since there are a plurality of mounting sequences, distribution of the mounting sequences, mounting order of the distributed components, and arrangement of the feeders 30, the number of combinations of production job sets is enormous. When calculating the scheduled cycle time of each mounter 20, the CPU 80a calculates the scheduled cycle time based on simulation or data accumulated in the past. The CPU 80a finds out of a huge number of combinations of production job sets a production job set in which the scheduled cycle times of all component mounters 20 are within a predetermined allowable range and which minimizes the production time. .

FIG. 5 shows an example of the scheduled cycle time of each component mounter 20 constituting the component mounting line 12. As shown in FIG. This planned cycle time is a calculated value based on an optimized production job. In FIG. 5, the number of component mounters 20 constituting the component mounting line 12 is 20, the horizontal axis is the ordinal number of the component mounters 20, and the vertical axis is the scheduled cycle time. The ordinal numbers of the component mounters 20 are expressed as first, second, . In FIG. 5, the scheduled cycle times of all component mounters 20 are within a predetermined allowable range.

Next, the operation (component mounting operation) of mounting components on the board S based on the production job received from the management computer 80 by the mounting control device 28 of the component mounter 20 after the start of production will be described. First, the mounting control device 28 causes the nozzle of the head 22 to pick up the component supplied from the feeder 30 . Specifically, the mounting control device 28 controls the head moving mechanism 23 to move the nozzle of the head 22 directly above the component supply position of the desired component. Next, the mounting control device 28 lowers the nozzle and supplies negative pressure to the nozzle. As a result, the desired component is attracted to the tip of the nozzle. After that, the mounting control device 28 raises the nozzle and controls the head moving mechanism 23 to move the nozzle that has picked up the component above a predetermined position on the substrate S. FIG. At that predetermined position, the mounting control device 28 lowers the nozzle and supplies atmospheric pressure to the nozzle. As a result, the component sucked by the nozzle is separated and mounted on the substrate S at a predetermined position. Other components to be mounted on the board S are similarly mounted on the board S, and when all the components have been mounted, the board S is sent to the component mounter 20 on the downstream side.

For example, during production, one of the component mounters 20 constituting the component mounting line 12 changes the type of nozzle because the picking rate of a specific component is poor, or the component picked up by the nozzle is too heavy and falls. The operating conditions of the component mounter 20 may be changed, such as slowing down the transport speed of the component. In this case, the actual cycle time (actual work cycle time) of the mounter 20 whose operating conditions have been changed will be later than the planned cycle time calculated by the production job setting routine, and the line balance will be lost, resulting in a decrease in production efficiency. Sometimes I end up FIG. 6 shows an example of the actual operation cycle time of each component mounter 20 constituting the component mounting line 12. As shown in FIG. FIG. 6 is a graph when 20 component mounters 20 constituting the same component mounting line 12 as in FIG. 5 are actually operated. In FIG. 6, the actual operation cycle time of the ninth component mounter 20 is longer than the allowable range, and the ninth component mounter 20 becomes a bottleneck and production efficiency is reduced.

When the operating conditions of each mounter 20 are changed during production, the CPU 80a of the management computer 80 adjusts the production job by adding the changed operating conditions (the cause of the actual working cycle time exceeding the allowable range). Reset. Note that the CPU 80a may recognize that the operating conditions have been changed based on information input by the operator via the input device 84, or based on the results of monitoring the operating status of each mounter 20 by the CPU 80a. can be automatically recognized. FIG. 7 is a flow chart of the production job resetting routine.

When this production job resetting routine is started, the CPU 80a of the management computer 80 determines a job resetting target (S210). Specifically, the CPU 80a selects the bottleneck component mounter 20 and several component mounters 20 located before and after it as targets for job resetting. The total number of component mounters 20 to be subjected to job resetting is less than the total number (for example, if the total number is 20, then 4 or 5). The target of job resetting may be input by the operator, or the range may be determined in advance such as the bottleneck component mounter 20 and a predetermined number of component mounters 20 before and after it. Next, the CPU 80a executes an optimization process targeting the mounter 20 for which job resetting is to be performed (S220). In the optimization process of S220, the CPU 80a determines that the correction processing time (correction cycle time) of the production job in the component mounter 20 subject to job resetting is within a predetermined allowable range, and that all components subject to job resetting are To find a production job that minimizes the total production time of a mounting machine 20. - 特許庁The corrected cycle time is calculated based on simulation or accumulation of past data, taking into account the operating conditions after the change. The production job generation method and the like are the same as in S120. Next, the CPU 80a updates the production job of the component mounter 20 for which the job is to be reset, among the production job set saved in the HDD 80d (S230), and ends this routine.

When the production job resetting routine ends, the production job of the mounter 20 targeted for job resetting is updated in the production job set of all the mounters 20 already stored in the HDD 80d. FIG. 8 shows an example of the correction cycle time of each component mounter 20 constituting the component mounting line 12 at this time. FIG. 8 is a graph of the correction cycle time of 20 mounters 20 forming the same mounter line 12 as in FIGS. In FIG. 8, the 8th to 11th component mounters 20 (a total of 4 units) including the 9th component mounter 20 that was the bottleneck were subjected to the optimization processing as job reset targets. The correction cycle times of the th mounter 20 are all within the allowable range.

Next, the operation when the loader control device 57 causes the loader 50 to automatically replace the feeder 30 based on an instruction from the management computer 80 will be described. When the loader control device 57 receives from the management computer 80 a production job for the component mounter 20 for which job resetting is to be performed, the loader control device 57 replaces the feeders 30 according to the production job. For example, as shown in FIG. 8, if the job reset target is the 8th to 11th component mounters 20, the loader control device 57 controls the loader moving mechanism 51 to select the 8th to 11th component mounters. While moving the loader 50 within the range where the component mounter 20 exists, the feeder transfer mechanism 53 is controlled to take out the feeder 30 from the component mounter 20 and attach the feeder 30 to another component mounter 20 .

Here, correspondence relationships between the components of the component mounting system 10 of the present embodiment and the components of the component mounting system of the present disclosure will be clarified. The component mounting line 12 of this embodiment corresponds to the component mounting line of the present disclosure, the management computer 80 corresponds to the management device, and the CPU 80a of the management computer 80 corresponds to the job setting section and the job resetting section. Further, the feeder 30 corresponds to the component supply device, the board S corresponds to the mounting object, and the component mounter 20 corresponds to the component mounter.

In the component mounting system 10 described above, the job reset target is less than the total number of the component mounters 20 whose actual work cycle time (job processing actual work time) exceeds a predetermined allowable range and the component mounters 20 connected thereto. It is limited to the component mounting machine 20 . Therefore, the time required for job resetting can be shortened compared to the case where all the component mounters 20 constituting the component mounting line 12 are subject to job resetting. Also, the job reset targets are the component mounters 20 whose actual work cycle time exceeds the predetermined allowable range and the component mounters 20 connected thereto, and are grouped together. Therefore, the movement distance for rearranging the feeders 30 in accordance with the reset job can be shortened, and the work required for the rearrangement can be completed in a short time.

In addition, since the loader 50 executes the work of replacing the feeder 30 for the component mounter 20 to be subjected to job resetting, the feeder 30 can be automatically replaced without manpower.

It goes without saying that the present invention is not limited to the above-described embodiments, and can be implemented in various forms as long as they fall within the technical scope of the present invention.

For example, in the above-described embodiment, instead of the production job resetting routine of FIG. 7, the production job resetting routine of FIG. 9 may be employed. When this production job resetting routine is started, the CPU 80a of the management computer 80 determines a job resetting target (S310). Specifically, the CPU 80a sets the job resetting target for a total of two mounters 20, ie, the bottleneck mounter 20 and the mounter 20 adjacent behind it. For example, if the bottleneck is the ninth component mounter 20 as shown in FIG. 6, the ninth and tenth component mounters 20 are set as job reset targets. Next, the CPU 80a executes an optimization process for the component mounter 20 that is the object of job resetting (S320). In the optimization process of S320, the CPU 80a searches for a production job in which the correction cycle time of the production job in the mounter 20 to be reset for the job is within a predetermined allowable range. Next, the CPU 80a determines whether or not such a production job is found by the optimization process (S330), and if not found, expands the job reset target (S340). Specifically, the CPU 80a alternately increases the number of job reset targets by one before and after the bottleneck component mounter 20 . For example, as shown in FIG. 6, if the bottleneck is the 9th component mounter 20, the 8th to 10th component mounters 20 are set as job reset targets when S340 is executed for the first time, and S340 is performed for the second time. When executing S340, the 8th to 11th component mounters 20 are targeted for job resetting, and when S340 is executed for the third time, the 7th to 11th component mounters 20 are targeted for job resetting. The job reset targets are expanded accordingly. After S340, the CPU 80a executes the processes after S320 for the expanded job resetting target. On the other hand, if a production job is found in S330 in which the modified cycle time of the production job in the mounter 20 to be reset is within a predetermined allowable range, the CPU 80a selects the production job set stored in the HDD 80d. Of these, the production job of the mounter 20 for which job resetting is to be performed is updated (S350), and this routine ends. By doing so, it is possible to obtain the same effects as in the above-described embodiment, and further minimize the number of component mounters 20 whose jobs are finally reset.

In the production job resetting routine of FIG. 9, the CPU 80a determines, in S310, the bottleneck component mounter 20 and the component mounters 20 in front of and behind the bottleneck component mounter 20 as targets for job reset in S340. The number of job resetting targets may be increased one by one at the same time before and after the component mounters 20 of . For example, if the bottleneck is the ninth component mounter 20 as shown in FIG. 6, the eighth to tenth component mounters 20 are determined as job reset targets in S310. After that, when executing S340 for the first time, the CPU 80a sets the 7th to 11th component mounters 20 as targets for job resetting, and when executing S340 for the second time, the CPU 80a selects the 6th to 12th component mounters 20. are subject to job resetting, and when S340 is executed for the third time, the 5th to 13th mounters 20 are subject to job resetting. By doing so, it is possible to obtain the same effect as the above-described embodiment, and furthermore, it is possible to reduce the number of component mounters 20 whose jobs are finally reset.

In S310, the ninth component mounter 20 of the bottleneck and a plurality of component mounters 20 (for example, the 8th to 11th component mounters 20) connected before and after it are determined as job reset targets, and in S340, When expanding the job reset target, the mounters 20 are alternately added one before and after the current job reset target, or one component mounter 20 is simultaneously added before and after the current job reset target. may be increased.

In the above-described embodiment, the feeder 30 is used as the component supply device, but the component supply device is not particularly limited to this, and for example, a tray on which a plurality of components are placed may be employed as the component supply device.

In the above-described embodiment, the allowable range of the scheduled cycle time and the allowable range of the corrected cycle time are the same, but they may be different. For example, the allowable range of the planned cycle time may be narrower than the allowable range of the corrected cycle time, or the allowable range of the planned cycle time may be wider than the allowable range of the corrected cycle time. Also, these allowable ranges may be changeable by the operator operating the input device 84 .

In the above-described embodiment, the loader 50 performs the task of replacing the feeder 30 for the component mounter 20 for which job resetting is to be performed, but the operator may perform the task. In this case, guidance on how to replace the feeder 30 is displayed on the touch panel display 27 of the mounter 20 for which the job is to be reset or on the display 82 of the management computer 80, and the operator replaces the feeder 30 according to the guidance. You can do it.

The component mounting system of the present disclosure may be configured as follows

In the component mounting system of the present disclosure, the job resetting section performs a task of resetting the job while increasing the number of job resetting targets by one before and after the component mounters exceeding the first allowable range. , may be repeated until the scheduled job processing time of each component mounter to be reset for the job falls within the second allowable range. By doing so, it is possible to minimize the number of component mounters whose jobs are finally reset.

In the component mounting system of the present disclosure, the job resetting section increases the number of job resetting targets one by one at the same time before and after the component mounter exceeding the first allowable range, and resets the job by: The job may be repeated until the scheduled job processing time of each component mounter to be reset is within the second allowable range. By doing so, it is possible to reduce the number of component mounters whose jobs are finally reset.

The component mounting system of the present disclosure includes a loader capable of automatically exchanging the component supply device with respect to the plurality of component mounters constituting the component mounting line, and the loader is reset by the job resetting unit. Automatic replacement of the component supply device may be executed for the component mounter to be reset based on the job. Although an operator may perform the task of replacing the component supply device with respect to the component mounting machine, the component supply device can be replaced without bothering human labor because the loader performs the task here.

INDUSTRIAL APPLICABILITY The present invention can be used in the technical field of mounting components on mounting objects using a component mounting line.

10 component mounting system, 12 component mounting line, 18 X-axis rail, 20 component mounting machine, 20A supply area, 20B stock area, 21 board transfer device, 22 head, 23 head moving mechanism, 27 touch panel display, 28 mounting control device, 30 feeder, 32 tape reel, 33 tape feeding mechanism, 34 feeder control device, 40 feeder stand, 42 slot, 45 connector, 50 loader, 50A upper transfer area, 50B lower transfer area, 51 loader moving mechanism, 53 feeder transfer loading mechanism, 55 encoder, 57 loader control device, 60 feeder storage, 80 management computer, 80a CPU, 80b ROM, 80c RAM, 80d HDD, 82 display, 84 input device.

Claims (4)

a component mounting line configured by arranging a plurality of component mounters in which a plurality of component supply devices are detachably set and which mounts components supplied by the component supply devices onto a mounting object, arranged along a conveying direction of the mounting object;
a management device that manages the component mounting line;
A component mounting system comprising
The management device
Jobs related to component mounting assigned to each component mounting machine are targeted to all component mounting machines constituting the component mounting line, and the components are allocated so that the scheduled job processing time of each component mounting machine falls within a first allowable range. a job setting unit that distributes and sets sequences to be implemented ;
If, among the plurality of component mounters, there is a component mounter whose job processing actual working time exceeds the first allowable range due to the need to adjust itself after starting production with the job set for itself For example, the component mounters exceeding the first allowable range and the component mounters connected thereto, which are less than the total number in total, are set as targets for job resetting, and each component mounter for which the job is reset is set. In consideration of the cause of the actual job processing time exceeding the first allowable range, the job to be assigned is set so that the scheduled job processing time of each component mounter to be reconfigured falls within the second allowable range. a job resetting unit that redistributes and resets sequences for mounting components and does not reset jobs of other component mounters ;
comprising a
Component mounting system. The job resetting section performs the work of resetting the job while increasing the number of job resetting targets alternately before and after the component mounters that exceed the first allowable range by one. Repeat until the scheduled job processing time of the mounter falls within the second allowable range;
The component mounting system according to claim 1. The job resetting section increases the number of job resetting targets one by one at the same time before and after the component mounter exceeding the first allowable range, and resets the job for each of the job resetting target components. Repeat until the scheduled job processing time of the mounter falls within the second allowable range;
The component mounting system according to claim 1. The component mounting system according to any one of claims 1 to 3,
a loader capable of automatically exchanging the component supply device with respect to the plurality of component mounters constituting the component mounting line;
The loader automatically replaces the component supply device with respect to the component mounting machine subject to job resetting based on the job set by the job resetting unit.
Component mounting system.

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