JPS6331436Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for easily holding a printed circuit board.

Generally, when manufacturing printed circuit boards, development,
There are various processes such as etching, polishing, and cleaning, and in many cases it is not possible to stack printed circuit boards during each process. It is now arranged. Conventionally, in order to easily hold printed circuit boards that come out of various processing devices, they are manually inserted into grooves one by one. Therefore, there were disadvantages in that it required labor and increased cost.

This invention solves these problems and provides a device for easily holding a printed circuit board, which automatically holds the printed circuit board as it is, significantly reducing labor and cost. be.

An embodiment of this invention will be described below with reference to the drawings.

In one embodiment of the invention shown in FIGS. 1-9, a rack 9 for holding a printed circuit board 90 is provided.
1 has a flat plate shape and has a large number of grooves 92 extending in the horizontal direction parallel to each other at predetermined intervals on the upper surface. The printed circuit board 90 is designed to be held by inserting its lower end into this groove 92, and its width is larger than the width of the rack 91, so that it is held so as to protrude from both sides of the rack 91. . 10 is a frame.

11 is a chain conveyor, which is constructed as described below. That is, 12 is a pair of chains, which are mounted between sprockets 15 provided on each of shafts 13 and 14, and are intermittently driven in the direction of the arrow in FIG. 1 by an electric motor (not shown). It's getting old. The spacing between the chains 12 is greater than the width of the rack 91. 17 are mounted so that the lower ends of both sides of the printed circuit board 90 are inserted and held in each of the chains 12 on both sides, with a predetermined spacing between the center lines equal to the spacing between the center lines of the grooves of the rack. A plurality of holding members have a pair of protrusions 18 disposed in the front-rear direction, and the outer sides of the protrusions are bent so as to spread out from each other. The printed circuit board 90 comes out of a machine that performs various processing and comes to be automatically held by the holding member 17 of the chain conveyor 11, or is held by hand, and the chain conveyor 11 is continuously held. It is designed to be driven intermittently, or to be driven intermittently by repeatedly stopping at intervals of the holding member 17. Normally, when the chain conveyor 11 is stopped, a limit switch (not shown) is provided so as to stop the holding member 17 at a predetermined position. Reference numeral 20 denotes a chain rail for supporting the load at the upper portion of each chain 12.

Reference numeral 21 denotes a roller conveyor having a large number of rollers 22 which are driven in the direction of the arrow in FIG. This constitutes a rack feeding means for feeding the rack 91.

Reference numeral 25 denotes a lifting device, which is constructed as described below. That is, 26 is an electric cylinder fixed to the frame 10 and extending in the vertical direction, and can be moved forward and backward at the same time by an electric motor (not shown) having a pair of built-in columns 27 from the upper end. Reference numeral 28 denotes a mounting plate fixed to the upper end of the support column 25. A pair of shafts 30 extending parallel to each other in the front-rear direction are fixed to both sides of the upper surface, and an air cylinder 31 is fixed to the central part. 32 is the four legs 3
3 is a support base guided by a shaft 30 and movable back and forth by a piston 35 of an air cylinder 31, as shown in the figure, with side edges 3 extending slightly upward on both sides.
6. This support stand 32 is adapted to receive the rack 91 delivered from the roller conveyor 21 in the state shown in solid lines in FIG. This rack 9
When the piston 35 moves in the retracting direction after receiving 1, the support base 32 retreats. Reference numeral 37 denotes a stopper fixed to the mounting plate 28 so that the rack 91 that has retreated together with the support base 32 comes into contact with it and stops. After the rack 91 contacts the stopper 37, the support stand 32 further retreats to the position shown at 32a in FIG. It's summery. With the support stand 32 in the state indicated by 32a, the chain conveyor 11 holds the printed circuit boards 90 at positions directly above the grooves 92 of the racks 91 supported by the support stand 32, and The printed circuit board 90 is not held at the position directly above. In this state, the support column 27 rises and the support base 3
2 rises and each printed circuit board 90 placed above is inserted into the groove 92 of the rack 91 and rises together with the rack 91, and the support stand 32 becomes 3 in FIG.
It reaches the position indicated by 2b and stops.

Reference numeral 38 denotes a belt conveyor constituting a transfer means for receiving and delivering the rack 91 holding the printed circuit board 90 from the support base 32. The belt conveyor 38 is disposed on the upper part of the frame 10 and is intermittently moved in the direction of the arrow in FIG. 1 by an electric motor (not shown). Alternatively, the belt 4 is continuously driven and is mounted on rollers 40 and 41.
It has 2. Reference numeral 43 designates a stepped portion formed of a double structure on both sides of the belt so as to engage with both sides of the rack 91, and reference numeral 45 designates a support plate configured to support the upper portion of the belt 42. After the support stand 32 reaches the position indicated by 32b, the belt conveyor 3
3 by the air cylinder 31 while driving 8.
When advanced to the position shown at 2c, the rack 91 is delivered by the belt conveyor 38. Thereafter, the support column 27, support stand 32, etc. of the lifting device 25 are lowered again to return to the initial state, and the next printed circuit board 90 is held by the chain conveyor 11, and the same operation is repeated.

As mentioned above, this invention uses a chain conveyor 1 to convey the vicinity of both ends of a plurality of printed circuit boards 90.
The rack 91 is inserted into the holding member 17 of No. 1, held, and stopped at a predetermined position by the lifting device 25.
Since the printed circuit board 90 is inserted into the groove 92 by raising the rack 92 and then received and taken out by the rack 91, the printed circuit board 90 can be automatically held in the rack 91, which significantly reduces labor. Moreover, it has the effect of reducing cost.

Various modifications can be made to this invention. For example, in the lifting device 25 according to the embodiment shown in FIG. 10 and FIG. is provided with a pair of stoppers 51 at its rear end so that the rack 91 delivered from the roller conveyor 21 is held in contact with the stoppers 51, and from this state the support stand 50 is raised and the rack 91 holding the printed circuit board 90 is sent onto the belt conveyor 38 by operating an air cylinder (not shown) fixed to the frame 10, for example. Even if the printed circuit board 90 is held continuously, there is no problem in raising and lowering the support base 32. Further, in this invention, a conveying means such as the belt conveyor 38 or a rack feeding means such as the roller conveyor 21 may not be provided, and those provided in other devices may be used.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of this invention with a portion cut away or removed, FIG. 2 is a plan view showing the same partially cut away or removed, and FIG. A sectional view, FIG. 4 is a front view showing a part of the rack that supported the printed circuit board on the belt conveyor, FIG. 5 is a BB sectional view in FIG. 4, and FIG. 6 is a C-- C sectional view, 7th
The figure is a front view of a part of the chain conveyor, Figure 8 is a plan view of a part of the chain conveyor, and Figure 9 is a front view of a part of the chain conveyor.
Figure 10 is an exploded perspective view of a part of the chain conveyor, Figure 10 is a partially cutaway front view of the main parts of a lifting device in another embodiment of this invention, and Figure 11 is a perspective view showing its support stand. It is. 10 is a frame, 11 is a chain conveyor,
17 is a holding member, 21 is a roller conveyor serving as a easy feeding means, 25 is a lifting device, 26 is an electric cylinder, 31 is an air cylinder, 32 is a support base, 38 is a belt conveyor serving as a transporting means, 9
0 is printed circuit board, 91 is easy.

Claims (1)

[Claims for Utility Model Registration] 1. A rack having a flat plate shape and having a plurality of grooves arranged parallel to each other at predetermined intervals on the upper surface and extending in the horizontal direction, one end of a plurality of printed circuit boards is placed in each of the grooves. A device for insertion and retention,
The width of the printed circuit board is larger than the width of the rack, and the circuit board has a pair of chains arranged at a distance larger than the width of the rack, and both ends of the printed circuit board are inserted into each chain. A chain conveyor is provided with a plurality of holding members arranged at predetermined intervals equal to the spacing between the grooves of the rack, facing each other so as to hold the printed circuit board, and the part supporting the rack is lowered. After supporting the supplied rack in a predetermined position with the chain conveyor stopped at a predetermined position, the rack is raised from between each chain and the lower end of the printed circuit board held by the holding member of the chain conveyor is lifted. and a lifting device inserted into a groove of a rack to hold and raise the rack, and the lifting device is in a state in which the part supporting the rack is lowered again after the rack holding the raised printed circuit board is removed. A device for easily holding a printed circuit board, characterized in that it can be returned to its original state. 2 Utility Model Registration The device according to claim 1, which comprises: rack feeding means for feeding a rack in order to support the rack in a state in which the rack-supporting part of the lifting device is lowered; and the lifting device 1. A device for holding a printed circuit board in a rack, characterized in that the apparatus is provided with a transport means for receiving the rack holding the printed circuit board raised by the operator and transporting the rack in a predetermined direction.