JPH0730567Y2 - Printed circuit board transport chain - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a carrier chain for a printed circuit board that prevents slippage of a printed circuit board placed on the carrier chain.

[Conventional technology]

FIG. 2 is a schematic configuration diagram showing a conventional soldering device, and FIG.
2 (a) to (c) show details of the transport chain shown in FIG. 2. FIG. 3 (a) is a front view, FIG. 3 (b) is a plan view, and FIG. 3 (c) is a side view. FIG. 4 and FIG. 4 are side views showing positions where stoppers are attached to the transport chain. In these figures, 1 is a printed circuit board, 2 is a soldering device, and illustration of the device provided inside is omitted.
Reference numeral 10 is a conveyor, and 3 is a pair of transport chains that run in opposition to each other and travel in the direction of arrow A. Reference numeral 4 is a link forming the transport chain 3, 5 is a roller, 6 is a pin, and 7 is a holding roller for mounting and holding the printed circuit board 1, which is fitted to the pin 6 and is attached to the printed circuit board 1. A slip in the direction intersecting the transport direction (arrow A direction), that is, in the width direction of the printed circuit board 1 is prevented. 8 is a chain guide, 9 is a sprocket, and a conveyor 10 transfers the printed circuit board 1 from the carrier chain 3 to the carrier chain 3A of the soldering device 2. Attachment device 2
It has the same shape as the transport chain 3A used in. Reference numeral 11 denotes a stopper which prevents the printed circuit board 1 from sliding on the holding roller 7 of the transport chain 3 and is provided at a required pitch P. Reference numeral 12 is a sprocket of the conveyor 10.

Next, the operation will be described.

The printed circuit board 1 is placed on the holding roller 7 of the conveyor chain 3 of the conveyor 10 and sent in the direction of arrow A, and then transferred to the holding roller 7 of the conveyor chain 3A of the soldering device 2 and placed, It is transported, then soldered and then removed.

[Problems to be solved by the device]

By the way, since the conventional conveyor chain 3 of the conveyor 10 is configured as described above, when the printed circuit board 1 on the conveyor chain 3 of the conveyor 10 is transferred to the conveyor chain 3A of the soldering device 2, the transfer is not smooth. There was a problem.

Therefore, the stopper that prevents the printed circuit board 1 from sliding on the conveyor chain 3 of the conveyor 10
It is also possible to push the rear end portion of the printed circuit board 1 in the traveling direction (direction of arrow A) by attaching the stopper 11 in this case, but in this case, as shown in FIG. When the sheet is placed on the conveyor chain 3 of the conveyor 10, the printed circuit board 1 not only lifts up if it rides on the stopper 11 rising in the direction of arrow B from below, but also the rear end of the printed circuit board 1 is stopped by the stopper 11. Can't push.

Therefore, when the printed circuit board 1 is placed on the conveyor chain 3 of the conveyor 10, the printed circuit board 1 is placed on the conveyor chain 3
There is a problem in that it takes a lot of work because it is necessary to prevent the user from getting on the stopper 11.

Further, even when the length of the printed circuit board 1 in the traveling direction (direction of arrow A) is longer than the pitch P of the stoppers 11, the printed circuit board 1 rides on the stoppers 11 and floats up from the transport chain 3. there were.

This invention has been made in order to solve the above-mentioned problems, and even if the printed circuit board is placed on the locking portion that prevents the printed circuit board from slipping, the printed circuit board does not lift from the transport chain, An object of the present invention is to obtain a carrier chain for a printed circuit board, the rear end of which can be pushed with certainty.

[Means for Solving the Problems]

The printed circuit board transport chain according to the present invention has a locking portion that stops the printed circuit board mounted on the mounting part of the traveling transport chain from sliding backward in the traveling direction of the printed circuit board. , When the printed circuit board is placed on the locking part, the locking part is lowered below the mounting part, and when the printed circuit board mounted on the locking part is removed, the weight of the printed circuit board is reduced by its own weight. The locking plate has a locking plate that is automatically raised by the rotation of the locking plate. The locking plate is rotated to one of a pair of adjacent pins that are fitted to a link forming the transport chain. It is movably supported and is provided on the transport chain so that the other end of the locking plate regulates the rising end and the falling end of the locking plate.

[Action]

In this invention, even if the printed circuit board placed on the transport chain slides backward, the locking portion of the locking plate prevents slippage. Further, even if the printed circuit board is placed on the locking portion, the locking plate rotates and the locking portion descends, so that the printed circuit board comes into close contact with the mounting portion of the transport chain and floats up on the transport chain. It is placed without any. Further, when the printed circuit board is removed from the locking portion, the printed circuit board is rotated by its own weight with one pin of the pair of pins fitted to the link as a fulcrum to ascend and returns to the initial state. The other pin of the pair of pins regulates the rising end and the falling end of the locking plate.

〔Example〕

1 (a) to 1 (d) show an embodiment of the present invention. FIG. 1 (a) is a front view, FIG. 1 (b) is a plan view, and FIG. 1 (c) is a side view. FIG. 1 (d) is a side view showing the state after the operation of FIG. 1 (c). In these figures,
The same reference numerals as those in FIG. 3 denote the same parts, 21 is a mounting plate of the printed circuit board 1, 22 is a mounting part for mounting the printed circuit board 1 on the mounting plate 21, 23 is a washer, and 24 is One end of the locking plate of the printed circuit board 1 is rotatably fitted to one of the pins 6A, and is attached to the transport chain 3 at a required pitch P similarly to the stopper 11 shown in FIG. ing. Reference numeral 25 denotes a locking portion formed on one end side of the locking piece 24 in order to prevent the printed board 1 on the mounting portion 22 from slipping,
Reference numeral 26 denotes a long hole formed on the other end side of the locking piece 24, which serves as a guide for engaging the other pin 6B and rotating the locking plate 24 in the direction of arrow C. 27 is a washer, and 28 is a lateral movement preventing piece for preventing lateral movement of the printed circuit board 1 in a direction perpendicular to the traveling direction (direction of arrow A).

The locking plate is rotatably supported by one of a pair of adjacent pins fitted to a link forming the transport chain, and the other pin raises and lowers the locking plate. Since it is configured to be installed in the transport chain so as to be regulated, the number of parts is extremely small and it rotates using its own weight, so there is almost no deterioration over time like when using a spring and assembly is easy. Therefore, the cost is reduced.
Further, the locking plate 24 has a long hole 26 in which the locking portion 25 on one end side of the locking piece 24 is normally raised with one pin 6A as an axis and the other pin 6B is engaged. Since the other end is formed so as to be lowered by the rotation by its own weight, the position shown in FIG. 1 (c) is automatically maintained.

Next, the operation will be described.

The printed circuit board 1 is a conveyor similar to the case shown in FIG.
It is placed on 10 and sent in the direction of arrow A. Then, as shown in FIGS. 1B and 1C, the mounting plate of the transport chain 3 is placed.
It is placed on the placing portion 22 of 21. Next, when the printed circuit board 1 slides on the mounting plate 21 when the printed circuit board 1 is transferred from the conveyor 10 to the soldering device 2, the printed circuit board 1 is locked by the locking portion 25 of the locking plate 24. Drive while being pressed at 25. On the other hand, when the printed circuit board 1 is placed and the lower surface of the printed circuit board 1 comes into contact with the locking portion 25, the weight of the printed circuit board 1 causes the locking plate 24 to move in the direction of arrow C as shown in FIG. 1 (d). Since the locking portion 25 descends below the mounting portion 22, the printed circuit board 1 is mounted in close contact with the mounting portion 22 of the mounting plate 21.

Next, after the transfer from the conveyor 10 to the soldering device 2 is completed and the printed circuit board 1 on the locking plate 24 is removed, the locking plate 24 moves in the direction of arrow C with one pin 6A as the axis. It rotates in the opposite direction by its own weight, and the locking portion 25 rises.

[Effect of device]

As described above, according to the present invention, the printed circuit boards mounted on the mounting portions of the pair of transport chains traveling in opposition are
The printed circuit board has a locking portion that stops sliding rearward with respect to the traveling direction, and when the printed circuit board is placed on this locking portion, the locking portion is lowered below the mounting portion,
The printed circuit board is closely placed on the above-mentioned mounting portion so that the printed circuit board does not move during transportation. Further, when the printed circuit board placed on the locking part is removed, the locking plate is provided on the transport chain so that the locking chain is rotated by its own weight to raise the locking part. Even if it slips, it can be prevented from slipping at the locking part. In addition, the printed circuit board can be placed on the transport chain regardless of the pitch of the locking plate, and even if the length of the printed circuit board is longer than the pitch of the locking plate. When placing it, you can save the trouble of checking the position of the locking plate. In addition, when the printed circuit board is removed from the transport chain, the locking plate returns by its own weight, so a return means such as a tension spring is not required. Therefore, the structure is simple and the printed circuit board is transported. Has the advantage that it can be done smoothly.

[Brief description of drawings]

1 (a) to 1 (d) show an embodiment of the present invention. FIG. 1 (a) is a front view, FIG. 1 (b) is a plan view, and FIG. 1 (c) is a side view. FIG. 1 (d) is a side view showing the state after the operation of FIG. 1 (c), FIG. 2 is a schematic configuration diagram showing a conventional soldering device, and FIGS. 3 (a) to 3 (c). 2 shows the details of the transport chain in FIG. 2. FIG. 3 (a) is a front view, FIG. 3 (b) is a plan view, FIG. 3 (c) is a side view, and FIG. 4 is a transport chain. It is a side view which shows the position which attached the stopper of. In the figure, 1 is a printed circuit board, 3 is a transport chain, 6A is one pin, 6B is the other pin, 7 is a holding roller, 10 is a conveyor, 12 is a sprocket, 21 is a mounting plate, 22 is a mounting portion, 24 is a locking plate, and 25 is a locking portion.

Claims (1)

[Scope of utility model registration request] 1. In a conveyer for mounting and transporting a printed circuit board on a mounting portion of a pair of transport chains that travel in opposition, the printed circuit board mounted on the traveling transport chain is the printed circuit board. Has a locking portion that stops sliding backward with respect to the running direction of the printed circuit board, and when the printed circuit board is placed on the locking portion, the locking portion descends below the mounting portion, When the printed circuit board placed on the stopper is removed, it has a locking plate that rotates by its own weight to automatically raise the locking part. It is rotatably supported by one pin of a pair of adjoining pins that fit into a link to be formed, and is provided on the transport chain so that the other end pin regulates the rising end and the falling end of the locking plate. A printed circuit board transport chain characterized by Down.