JPH04103700U - Board feeding device in lead wire cutter - Google Patents

Abstract

(57) [Summary] [Purpose] To hold and lock printed circuit boards to feed them stably and reliably. [Configuration] When both ends of the printed circuit board 1 are placed on a pair of support rails 2 and 3 and sent, feeding members 11 and 12 made of chains or belts are placed above each support rail.
A large number of feed claws 13 are provided at regular intervals to press the printed circuit board 1 onto the rails from the ends of the boards placed on the support rails 2 and 3, and to lock the rear end in the board feeding direction. It is attached to the feeding members 11 and 12. Each feed pawl 13 is provided with a locking piece 15 which is vertically movably suspended from a mounting piece 14 attached to the feed members 11 and 12 and is biased by a spring to push the board 1 onto the rail. A regulating piece 16 that engages with the mounting piece 14 is provided to keep the orientation of the stopper piece 15 constant.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a cutter that cuts unnecessary lead wires attached to printed circuit boards. The present invention relates to an apparatus for feeding the substrate.

0002

[Conventional technology]

Devices for cutting off unnecessary lead wires protruding below the board are conventionally known; Pressure is applied using a pin-shaped member to press the board against the force exerted by the cutter. have the means to do so. However, when using such materials, the print pattern may change. The disadvantage is that the pressure position must be changed every time the pressure is applied. On the other hand, the circumference of the feed roll An engagement groove is provided on the surface, and the side edge of the substrate is engaged with the groove to resist the cutter force. This is also known and is used in many cases, but the thermal deformation of the board prevents feeding. This has caused problems such as it being stuck or coming off.

0003

[Problem that the idea aims to solve]

The present invention was developed in view of the above points, and the problem is that in the lead wire cutter, To allow printed circuit boards to be fed smoothly regardless of whether they are deformed or not. Ru.

0004

[Means to solve the problem]

In order to solve the above problem, the present invention provides a lead wire cutter in which the board 1 is fed. a pair of support rails 2 and 3 on which both ends can be placed; A feeding member 11 consisting of a chain or belt, etc., installed along one side of the A large number of feed pawls 13 are attached to at least one feed member 11, and the feed A mounting piece 14 for hanging the claw 13 on the feed member, and a mounting piece 14 that can be moved up and down. It is suspended, and is locked to the rear end of the printed circuit board 1 in the feeding direction and pushed forward. , a locking piece 15 biased by a spring to push the board 1 onto the rail, and an orientation of the locking piece 15. A measure has been taken to configure it with a regulating piece 16 that keeps the constant.

[0005] Then, the printed circuit board 1 is sent while being placed on the support rails 2 and 3. Therefore, even if the board 1 is deformed, its feeding will be smooth and will not be hindered in any way. I can't do it.

[0006] A large number of feed claws 13 are involved in feeding the printed circuit board 1, but only the base is actually fed. There is only one that locks on the rear end in the board feeding direction, and the other feeding claws 13 hold the printed circuit board 1. Since it is pressed from top to bottom by a spring bias, it can sufficiently resist the force applied by the cutter. I can do that.

[0007]

【Example】

This will be explained below with reference to the drawings. Figures 1 and 2 show a front view and a plan view of the lead wire cutter. Each figure shows a pair of support rails 2 and 3 arranged in the center on the top surface of the main body. , before and after are connected to the entrance conveyor 4A and exit conveyor 4B, and the printed circuit board 1 is connected to the entrance conveyor 4A and the exit conveyor 4B. Loading, sending, and unloading are carried out. 5 is below the support rails 2 and 3 and on the board feeding surface. A cutter blade is provided so that it can be accessed, and 6 is a brush that cleans the bottom surface of the substrate behind the cutter blade. This will be provided as necessary. 7 is the spacing adjustment handle for support rails 2 and 3, 8 is the top It is partially covered and has a window 9. 10 indicates a control panel.

[0008] A pair of support rails 2 and 3 are sliding surfaces 21 on which the lower side surfaces of the printed circuit board 1 are placed. and a guide surface 22 that is in contact with the end surface of the side of the substrate, and has a substantially L-shaped section. However, one of the support rails 3 is movable by an interval adjustment mechanism not shown. Therefore, pudding It is easy to adapt to changes in the board 1.

[0009] A pair of feed members 11 and 12 are installed along the support rails 2 and 3, and each feed member is The members are sprockets 23 and 24 installed on both conveyors 4A and 4B. It consists of a chain 25 that is hung around them, and a support set on the outer upper part of the support rail. The chain 25 slides on the holding surface 26 to perform feeding (FIG. 3).

0010 A large number of feed pawls 13 are attached to each of the chains 25 with bolts 27 at regular intervals. and the bolted mounting piece 14 and the mounting piece 14 suspended from the mounting piece 14 at the feed position. It has a locking piece 15 attached by a vertical shaft 17 that is in a raised position, and is compressed between both pieces. The locking piece 15 is urged downward by the spring 18. The locking piece 15 is A cross section approximately L that can contact the guide surface 22 of the support rail portion and the upper surface 28 continuing to the upper end thereof. It has a letter shape or a hook shape, and is provided at the front or rear or both the front and rear, and the mounting piece 1 It has one or two regulating pieces 16 that engage with the holder 4 to prevent rotation (FIG. 5). 29 is above It shows how to prevent the lower shaft 17 from coming off.

[0011] In this way, the printed circuit board 1 sent from the soldering process etc. is transferred from the entrance conveyor 4A to the present invention. When fed into the proposed cutter, both edges rest on support rails 2 and 3. Ru. A plurality of feed claws 13 that come onto the board from the front end when the board 1 enters the board 1 Press the side edge onto the rail from above, and the first feed claw 13 that comes off from the board 1 is the rear end of the board. Lock it and push it forward. In this feeding state, the cutter blade 5 The wire cutting is performed, but since the board 1 is held down by a large number of feed claws 13, It is stable for a long time.

0012

[Effect of the idea]

Since the present invention is constructed and operates as described above, the printed circuit board 1 is , on the support rails 2 and 3 by a large number of feed pawls 13, each of which is biased by a weak spring. Since the printed circuit board is held down by the 1 feed and lead wire cutting work can be performed very smoothly. do.

[Brief explanation of drawings]

FIG. 1 is a front view of the entire lead wire cutter.

FIG. 2 is a plan view of the same as above.

[Fig. 3] An enlarged cross-sectional view of main parts.

FIG. 4 is an explanatory diagram of the function of the feed claw.

FIG. 5(a) is a perspective view of a feed claw.

FIG. 5(b) is a perspective view of the feed claw.

Claims (3)

[Scope of utility model registration request] 1. A cutter for cutting lead wires attached to a printed circuit board 1, comprising a pair of support rails 2, 3 on which both ends can be placed for feeding the board 1, and at least one of the support rails. A feed member 11 made of a chain or a belt installed along the feed member 11, and a large number of feed claws 13 attached to at least one of the feed members 11, the feed claws 13 being suspended from the feed member. mounting piece 14,
The printed circuit board 1 is suspended from the mounting piece 14 so as to be movable up and down.
At the same time as locking the rear end in the feed direction and pushing it forward,
Spring-loaded locking piece 1 for pushing the board 1 onto the rail
5. A substrate feeding device characterized by comprising a regulating piece 16 that keeps the direction of the locking piece 15 constant. 2. The locking piece 15 is suspended from the mounting piece 14 by one vertical shaft 17, and a spring 18 that presses the locking piece 15 is wound around the shaft 17. 2. A substrate feeding device in a lead wire cutter according to claim 1, wherein a regulating piece 16 is provided at the rear or both the front and rear sides to engage with the mounting piece 14 and to keep the locking piece 15 in a constant direction. 3. A board feeding device in a lead wire cutter according to claim 1, wherein the pair of support rails 2 and 3 have a substantially L-shaped cross section on which both side edges of the printed circuit board 1 are placed.