JPH03158310A - Transfer and assembly conveyor for printed circuit board electronic part - Google Patents

Abstract

PURPOSE:To stabilize the workability and quality by holding pallets rotatably between a pair of endless chains installed in parallel at engagement pins of the chains, and guiding guide wheels provided at chain side end surfaces of the pallets by guide rails at horizontal parts and guide ways at direction changing parts. CONSTITUTION:When a pair of chains 3 are rotated through sprockets 12, 13 by a drive unit 2, pallets 7 held rotatably by engagement pins 8 and holders 9 are rotated with guide wheels in contact with guide rails 5, 6. When the pallet 7 reaches a direction changing part, either of the guide wheels 10, 11 is guided and regulated by a guide way 14 and 15 to rotate normally without being inclined or inverted.

Description

[Detailed Description of the Invention] Industrial Application Field This invention facilitates the insertion and assembly of electronic components on the top surface of the conveyor, so the conveyance is quiet and stable without any vibrations, and it can be circulated in a limited space. It also relates to a conveyor that improves work efficiency and stabilizes quality by changing the pallet to suit the board with a single touch when changing setups for the production of a wide variety of small boxes, such as changing the size of the board.

2. Description of the Related Art Conventionally, work on a conveyor for transporting boards and the like was done by many people lining up, or by placing the board on a pallet and fixing or semi-fixing the pallet to an endless chain by pivoting or pivoting. Concerning the conversion of the optimal pallet to the board for flexible production needs, it is not easy to attach or detach, and there is no wasted time! ! In addition, when inserting electronic components into a board, the vibrations caused by the conveyor conveyance require some getting used to the work and cause fatigue, resulting in a decline in work efficiency and quality. Furthermore, it is desirable to be able to move around the board, especially change direction, in a small space and without falling or shaking, but there was no suitable one.

C0 Problems to be Solved by the Invention This invention allows a transport conveyor to carry out stable circular transport of substrates without waves, inclinations, or reversals in a small amount of space, and can accommodate various sizes of substrates to meet the needs of high-mix, low-volume production. The purpose is to make it easier to change the setup to a compatible pallet.In other words, the purpose is to use the optimal pallet for the board and ensure stable transportation, thereby increasing workability and stabilizing quality.

An embodiment of means for solving the 23 problems will be described as follows based on the drawings. In Fig. 1, chains 734 with appropriate spacing are arranged endlessly on the conveyor frame l, and the sprockets 12, 13, 12, 13, 12, 12, 12, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12,”12,, 12, 12, 12, 12, 12, 12, 12, 22, 22, 22, 22, 23, 3, 3, 4, 3, 3, 4, 4, 3, 4, 5, 5 5, 5, 5, 5, 5, 5, . Inside the ring 73.41, which is rotated by the button 73.41, there is a bush 18. Engagement pin 8. There is,
Grips 9 provided on opposing pallets 7°. 73.4. At the end opposite each guide wheel 10.11. There is a Che 73.4. When the pallet rotates, the pallet also rotates. Guide wheel 10.11. The pallet 7 rolls in contact with the guide rail 5°6, and promotes smooth movement of the pallet 7 without wave motion. When the pallet 7 rotates and reaches the direction change part, the automatic
11. Either of the X is the guideway 14.15. Groove 16°1? , and will be guided and regulated. If the guide wheel is 10. The grip 9 of the pallet 7 moves to a position of 10゛ or lO'' depending on the inclination of the pallet 7.
．． and Che 73.4. The center of the engagement pin wheel 8 or the split 12. Rotation center diameter and guide wheel 10. Since the distance of guideway 14. is constant, guideway 14. Groove portion 16. A normal change of direction is made to prevent further deviations.

Action drive device 2. By means of split 12.13°, Che 73, 4. When the door is rotated, the engagement pin 8. and grip 9. The guide wheels 10.11. of the pallet 7 are rotatably clamped and engaged by the pallet 7. is in contact with the guide rail 56, and the pallet 7 is rotated. When the pallet 7 reaches the direction change area, the guide wheel to, 11. One of the guideways 14. or 15, and is guided and regulated by either of the following, and is circulated without inclination or reversal.

Effects of the Invention As explained above, this invention allows operations such as inserting electronic components into boards to be carried out repeatedly and freely in a relatively small space, and the pallet on which the boards are placed can be carried along quietly without vibrations. It is advantageous because work on the board is stable, there is less fatigue, workability is improved, and quality is stable.

For flexible production needs such as high-mix low-volume production, even an amateur can easily change the pallet setup to best suit the board size type.

Since the above effects can be implemented with a simple configuration, even unskilled people can operate it and maintain it easily.

[Brief explanation of the drawing]

The drawings show a practical example of the present invention; FIG. 1 shows the entire device, FIG. 2 shows the plane of the V section, and FIG. 3 shows the main part of the direction changing part of the patrol line. 10" Conveyor frame drive device chain guide rail pallet engagement pin gripper guide wheel sprocket guide way groove Part rotation bush guide guide wheel temporary position is shown. Center of sprocket 12 Rotation center diameter of sprocket 12.

Claims (1)

[Claims] In a device that transports boards on the top surface of an endless conveyor and inserts electronic components, etc., endless chains are installed in two rows at appropriate intervals on the conveyor frame, and a plurality of endless chains are installed on opposing surfaces inside the chains at appropriate chain pitch intervals. The pallet of boards is arranged and the gripping part of each pallet is rotatably engaged with the engagement pin of the chain to make it easy to replace and remove the pallet of boards, and further guided to the end of the chain side surface of the pallet. A ring is provided, and the guide wheel makes contact with the groove of the guideway so that the pallet of substrates can be rotated without turning over or tilting, especially at the direction change part of the circuit. A conveyor for board work, etc. that has the characteristics of being secured and not deviated from.