JP5243973B2 - Component mounting board production method and component mounting board production system - Google Patents

Description

  The present invention relates to a component mounting board production method and a component mounting board for producing a component mounting board by transporting a circuit board to a mounting machine line composed of one or a plurality of mounting machines and mounting a plurality of components on the circuit board. It is an invention related to a production system.

  For example, as shown in Patent Document 1 (Japanese Patent Laid-Open No. 2008-270337), a plurality of mounting machines are arranged along a circuit board transport path, and the circuit boards are sequentially transported to the mounting machines. In some cases, a plurality of parts are mounted. In such a mounting machine line configuration, if the number of feeders mounted on the mounting machine line is smaller than the number of types of parts mounted on the circuit board, it is impossible to mount all the parts on the circuit board. It is necessary to increase the number of feeders by adding more mounting machines.

JP 2008-270337 A JP 2004-128245 A

  However, there may be cases where the number of mounting machines cannot be increased due to restrictions on the mounting space of the mounting machine line. In this case, it is not possible to handle production in which the number of types of components mounted on the circuit board is greater than the number of feeders mounted on the mounting machine line. .

  In addition, since it takes a lot of work to change the assembly of the mounting machine line by adding mounting machines, in the case of low-volume, high-mix low-volume production, changing the mounting machine line and changing the mounting machine line organization It is inevitable that the production cost per sheet will greatly increase.

  In Patent Document 2 (Japanese Patent Application Laid-Open No. 2004-128245), two transport paths are provided on the mounting machine line, and the circuit board is transported in the forward direction on one transport path, and components are mounted on the circuit board. After mounting, the configuration is described in which the transport direction is reversed, the circuit board is transported in the opposite direction on the other transport path, the components are mounted on the circuit board, and the circuit board is collected from the same side as the board carry-in side. Has been. However, even this configuration cannot cope with production in which the number of types of components mounted on the circuit board is larger than the number of feeders mounted on the mounting machine line.

  The present invention has been made in view of such circumstances. Therefore, the object of the present invention is to increase the number of mounting machines even when the number of types of components mounted on the circuit board is larger than the number of feeders mounted on the mounting machine line. Accordingly, it is an object of the present invention to provide a component mounting board production method and a component mounting board production system that enable production and realize various production at low cost and space saving.

In order to solve the above problems, the present invention produces a component mounting board by transporting a circuit board to a mounting machine line composed of one or more mounting machines and mounting a predetermined number of components on the circuit board. In the component mounting board production method and the component mounting board production system, when the number of feeders mounted on the mounting machine line is smaller than the number of types of the predetermined number of components to be mounted on the circuit board, A forward mounting operation in which a circuit board is transported in a forward direction to a mounting machine line composed of mounting machines and a part of the predetermined number of parts is mounted on the circuit board, and a reverse direction is applied to the mounting machine line. In the reverse mounting operation of transporting the circuit board and mounting the other parts of the predetermined number of parts on the circuit board, and before reversing the transport direction of the circuit board, set in the mounting machine Feeding direction of feeder It is obtained so as to repeat the feeder replacement work to replace a feeder for supplying a component to be mounted in mounting work after rolling until mounting the predetermined number of components on the circuit board.

  Like the present invention, the forward mounting work → feeder replacement work → reverse mounting work → feeder replacement work → forward mounting work → ... If the number of parts to be mounted on the circuit board is larger than the number of feeders mounted on the mounting machine line, production can be performed without adding mounting machines, thus reducing diverse production. It can be realized at low cost and space.

  In this case, the circuit boards in the middle of production that have been transported are temporarily stocked or waited on the carry-in side and the carry-out side of the mounting machine line, and the circuit boards in the middle of production are turned into the mounting machine line one by one after reversing the transport direction. It is advisable to provide a buffer or conveyor for conveyance. In this way, after the mounting work in either direction is finished and the operator performs the feeder replacement work, the circuit boards in production are automatically transferred one by one from the buffer or conveyor to the mounting machine line immediately. Then, the following mounting work can be performed.

  Furthermore, it is preferable to display and / or instruct the worker to perform the feeder replacement work before the forward or reverse mounting work is finished and the conveyance direction of the circuit board is reversed. Thereby, every time the mounting operation in each direction is completed, the operator can immediately perform the feeder replacement operation in accordance with the display and / or voice instructions.

FIG. 1 is a process diagram for explaining a production method in Embodiment 1 of the present invention. FIG. 2 is a flowchart showing the flow of processing of the production management program in Embodiment 1 of the present invention. FIG. 3 is a diagram for explaining the configuration of the mounting machine line according to the second embodiment of the present invention.

  Hereinafter, two Examples 1 and 2 which embody the form for implementing this invention are demonstrated.

A first embodiment of the present invention will be described with reference to FIGS.
The mounting machine line 11 includes one or a plurality of mounting machines 12, and a feeder pallet 14 in which a plurality of feeders 13 are detachably set is attached to each mounting machine 12 in a replaceable manner. The mounting machine line 11 is configured so that the transport direction of the circuit board 15 can be switched between the forward direction and the reverse direction, and buffers 16 and 17 are installed on the loading side and the unloading side of the mounting machine line 11, respectively. The circuit boards 15 in the middle of production that have passed through the mounting machine line 11 are temporarily stocked in the buffers 16 and 17, and after the direction of conveyance is reversed, the circuit boards 15 in the middle of production are transferred from the buffers 16 and 17 to the mounting machine line 11 one by one. I am trying to carry it. Each of the buffers 16 and 17 has a function of moving up and down the circuit board 15 in the middle of production and stocking it three-dimensionally, and a function of loading and unloading the circuit boards 15 one by one.

  The circuit board 15 and the feeder pallet 14 are each provided with an identification unit for displaying identification information (ID), and the circuit board 15 is mounted by a camera 18 of the mounting machine 12 (for example, a mark camera for imaging a reference position mark of the circuit board 15). Production is managed by capturing and reading the ID of the image. Also, the feeder pallet 14 (feeder 13) corresponding to the current production process (job) is attached to the mounting machine 12 by imaging and reading the ID of the feeder pallet 14 with a camera 18 such as a mark camera of the mounting machine 12. It is determined whether or not.

  When the number of types of components to be mounted on the circuit board 15 is greater than the number of feeders 13 mounted on the mounting machine line 11 (that is, all the components on the circuit board 15 just by flowing the circuit board 15 forward in the mounting machine line 11) If the circuit board 15 is not mounted, the job for producing the component mounting board is divided into a plurality of parts, the circuit board 15 is transported to the mounting machine line 11 in the forward direction, and a part of the circuit board 15 is mounted in the forward direction. Mounting work, reverse mounting work for transporting the circuit board 15 to the mounting machine line 11 in the reverse direction and mounting other components on the circuit board 15, and mounting before reversing the transport direction of the circuit board 15 The feeder pallet 14 attached to the machine 12 is replaced with a feeder pallet 14 in which the feeder pallet 14 for supplying components to be mounted in the mounting operation after the reversal of the conveyance direction is set. So that repeated until implementing a predetermined number of components on a substrate 15.

  For example, when dividing a job for producing a component mounting board into three, forward mounting work (job 1) → feeder replacement work → reverse mounting work (job 2) → feeder replacement work → forward direction The mounting work in each direction and the feeder replacement work are alternately performed in the order of the mounting work (job 3). The control device of the mounting machine line 11 executes the production management program of FIG. 2 to produce a component mounting board as follows. First, in step 101, the circuit board 15 is transferred to the mounting machine line 11 in the forward direction, and in the next step 102, a forward mounting operation (job 1) for mounting some components on the circuit board 15 is performed. Then, the circuit board 15 in the middle of production on which components are mounted is stocked in the buffer 17 on the carry-out side. In the next step 103, it is determined whether or not the number of substrates that have completed the forward mounting operation (job 1) has reached a predetermined number, and the substrate that has completed the forward mounting operation (job 1). The forward conveyance and the mounting operation (job 1) are repeated until the number reaches the predetermined number (steps 101 and 102).

  When the number of substrates that have completed the forward mounting operation (job 1) reaches a predetermined number, the process proceeds to step 104, and the feeder pallet 14 attached to the mounting machine 12 is mounted in the next job 2. The operator is instructed by display and / or voice to replace the feeder 13 for supplying the parts with the feeder pallet 14 set, and waits until the worker performs the replacement operation of the feeder pallet 14 (step 105).

  At this time, by replacing the feeder pallet 14, a large number of feeders 13 that supply components to the mounting machine 12 can be replaced at a time, so that the feeder replacement operation can be performed efficiently. When the number of feeders 13 to be replaced is small, the feeders 13 to be replaced may be replaced individually without replacing the feeder pallet 14.

  After that, when the worker performs the replacement work of the feeder pallet 14 (feeder replacement work), the process proceeds to step 106, and the circuit boards 15 in the production process stocked in the buffer 17 on the carry-out side are mounted one by one. 11 in the reverse direction, and in the next step 107, a reverse mounting operation (job 2) for mounting other components on the circuit board 15 is performed, and the circuit board 15 in the middle of production in which the components are mounted is carried in Stock in side buffer 16. In the next step 108, it is determined whether or not the number of substrates that have completed the reverse mounting operation (job 2) has reached a predetermined number, and the substrate that has completed the reverse mounting operation (job 2). The reverse conveyance and mounting operation (job 2) are repeated until the number reaches the predetermined number (steps 106 and 107).

  Then, when the number of substrates for which the reverse mounting operation (job 2) has been completed reaches a predetermined number, the process proceeds to step 109 to display to the operator to replace the feeder pallet 14 corresponding to the next job 3. Instruct by voice and wait until the operator performs replacement work of the feeder pallet 14 (step 110).

  Thereafter, when the operator performs the replacement work of the feeder pallet 14, the process proceeds to Step 111, and the circuit boards 15 in the process of being stocked stored in the buffer 16 on the carry-in side are transferred to the mounting machine line 11 one by one in the forward direction. Then, in the next step 112, a forward mounting operation (job 3) for mounting the remaining components on the circuit board 15 is performed. As a result, the circuit board 15 on which a predetermined number of components are mounted is unloaded from the mounting machine line 11 and passed to the subsequent process (step 113).

  In the first embodiment described above, the order of forward mounting work (job 1) → feeder replacement work → reverse mounting work (job 2) → feeder replacement work → forward mounting work (job 3). Thus, the mounting operation in each direction and the feeder replacement operation are alternately performed. Therefore, even if the number of types of components mounted on the circuit board 15 is larger than the number of feeders 13 mounted on the mounting machine line 11, the mounting machine Production is possible without adding 12 and various production can be realized at low cost and space saving.

  When the mounting machine line 11 is composed of a plurality of mounting machines, in addition to the loading side and the unloading side of the mounting machine line 11, between the appropriate mounting machines in the mounting machine line 11 (one or a plurality of mounting machines). The same effect can be obtained even if buffers are provided in the respective locations) and the production process is performed between the buffers.

  In the first embodiment, the buffers 16 and 17 for temporarily stocking the circuit board 15 in the middle of production in which components are mounted by mounting work in each direction are installed on the carry-in side and the carry-out side of the mounter line 11. In the second embodiment of the present invention shown in FIG. 3, the components are mounted by mounting work in each direction using the conveyors 21 and 22 or the mounting machine 1 and the mounting machine 3 provided on the loading side and the unloading side of the mounting machine line 20. The circuit board 15 in the middle of production is temporarily put on the conveyors 21 and 22 on the carry-in side and the carry-out side of the mounting machine line 20 or on the conveyors in the mounting machine 1 and the mounting machine 3, and mounting work in either direction After the operator completes the feeder replacement operation, the circuit board 15 in the middle of production is immediately transferred from the conveyors 21 and 22 on the loading side and the unloading side of the mounting machine line 20 or the conveyors in the mounting machine 1 and the mounting machine 3. One by one To be transported to the mounting machine line 20 and to perform the following mounting operation.

  In the second embodiment configured as described above, the same effect as that of the first embodiment can be obtained.

  DESCRIPTION OF SYMBOLS 11 ... Mounting machine line, 12 ... Mounting machine, 13 ... Feeder, 14 ... Feeder pallet, 15 ... Circuit board, 16, 17 ... Buffer, 18 ... Camera, 20 ... Mounting machine line, 21, 22 ... Conveyor

Claims (4)

A method of producing a component mounting board by transporting a circuit board to a mounting machine line composed of one or a plurality of mounting machines and mounting a predetermined number of components on the circuit board,
When the number of feeders mounted on the mounting machine line is smaller than the number of types of the predetermined number of components to be mounted on the circuit board, the circuit board is transported forward to the mounting machine line and the predetermined number is transferred to the circuit board. A mounting operation in a forward direction for mounting some of the components, and transporting the circuit board in the reverse direction to the mounting machine line, and placing the other parts of the predetermined number of components on the circuit board Feeder replacement that replaces the mounting work in the reverse direction of mounting, and replaces the feeder set in the mounting machine with the feeder to be mounted in the mounting work after reversing the transport direction before reversing the transport direction of the circuit board component mounting board production methods and repeating the process until mounting the predetermined number of components on the circuit board.   The circuit boards in production that have been transported are temporarily stocked or waited on the carry-in side and the carry-out side of the mounting machine line, and the circuit boards in production are transported to the mounting machine line one by one after reversing the transport direction. The component mounting board production method according to claim 1, wherein a buffer or a conveyor is provided.   The operator is instructed by display and / or voice to perform the feeder replacement work before ending the forward or reverse mounting work and reversing the transport direction of the circuit board. Item 3. A component mounting board production method according to Item 1 or 2. A one or a plurality component mounting board production system in mounting machine line comprising a mounting machine conveys the circuit board by mounting a predetermined number of components to the circuit board to produce a component mounting board,
The mounting machine line is configured so that the transfer direction of the circuit board can be switched between a forward direction and a reverse direction, and the circuit board being transported is temporarily transferred to the loading side and the unloading side of the mounting machine line. A buffer or a conveyor is provided to convey the circuit boards in the middle of production one by one to the mounting machine line after stock or standby and reversing the conveyance direction,
When the number of feeders mounted on the mounting machine line is smaller than the number of types of the predetermined number of components to be mounted on the circuit board, the circuit board is transported forward to the mounting machine line and the predetermined number is transferred to the circuit board. A mounting operation in a forward direction for mounting some of the components, and transporting the circuit board in the reverse direction to the mounting machine line, and placing the other parts of the predetermined number of components on the circuit board Mounting work in the reverse direction of mounting and work to replace the feeder set in the mounting machine with a feeder that supplies components to be mounted in the mounting work after reversing the transport direction before reversing the transport direction of the circuit board A component mounting board production system comprising : a control device that repeats a feeder replacement instruction that is displayed or voiced to a person until the predetermined number of parts are mounted on the circuit board.

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