JPH0630766Y2 - Metal plate aligner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a metal plate aligning device, and more particularly to a metal plate aligning device for stacking and aligning a predetermined number of metal plates and sending them out.

[Prior Art] In the process of processing a metal plate such as a lead frame to be incorporated in a semiconductor substrate, a certain number of metal plates that continuously flow through the process are stacked and aligned, and then the whole process is performed collectively. It was requested to be sent.

For this purpose, round bars or square bars for guide members are vertically installed on the metal surface plate at regular intervals in the longitudinal direction so that the widthwise intervals of the round bars or square bars slightly exceed the width of the metal plate. Then, drop the metal plate between these round bars or square bars, align and support the side surfaces of the metal plate with the round bars or square bars, stack a certain amount of metal plates, and then batch these on the conveyor. There was a jig configured to take it out. Also, instead of round bars and square bars,
A box-shaped case is prepared, and the upright four sides of the case are entirely covered with a metal plate to form a guide member.The metal plate is dropped into this case, and a certain amount of the metal plates are stacked, and then these metal plates are attached. There was also a jig that was configured to be taken out on the conveyor in a lump.

Further, as shown in FIG. 3, an upright mounting plate is provided so as to configure the opposite side surfaces of the box-shaped container, and a rotating plate that rotates in the up-down direction is arranged on the mounting plate in two upper and lower rows. There was a device. The distance between the mounting plates is slightly larger than the width of the metal plate to be received, and the metal plate cut from the metal strip descends between the mounting plates via the rotary plate.
Specifically, there is a guide plate 2 on the upper part of the mounting plate, and a metal plate (not shown) is used as an upper rotary plate, that is, an upper rotary plate 4.
On top. The metal plates are fed one by one onto the lower rotary plate 4 by the rolling of the upper rotary plate. Thus, the metal plate
After being sequentially dropped on the lower rotary plate according to the flow order and stacked, they are transferred as a unit on a conveyor (not shown) below the aligning device by rolling the lower rotary plate at regular intervals. .

[Problems to be solved by the invention] However, in a jig in which side surfaces of stacked metal plates are aligned with a round bar or a square bar, the positioning accuracy of the metal plates is not good.
The metal plate has a drawback that it is likely to cause a vertical stacking error. For this reason, there has been a problem of time and labor for re-arranging again when the conveyor is transferred and surface flaws that are likely to occur due to sliding of the metal plates at this time.

Also, in an aligning device that performs side surface alignment of stacked metal plates by plates, the distance between the plates must be matched with the width of the metal plates, and therefore metal plates cut from metal strips are easily clogged when entering the aligning device. There was a problem.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a metal plate aligning device according to the present invention, wherein a pair of attachments are arranged upright so as to face each other at a constant interval. A plate, an upper rotary plate rotatably attached to each mounting plate in the vertical direction, and a lower rotary plate rotatably attached to each mounting plate below the upper rotary plate. , The upper rotary plate receives the metal plates one by one within the fixed interval, rotates by the weight of the one metal plate, transfers the metal plate onto the lower rotary plate, and the lower rotary plate has a fixed amount. Is rotated by the weight of the metal plate so as to feed out a certain amount of the metal plate, and a pair of parallel sliding tracks are arranged below the mounting plate so as to be orthogonal to the mounting plate. A pair of linear motion bearings are provided for moving the mounting plate by the linear motion bearings. A pair of guides that allow the mounting plates to move toward and away from each other by a ring sliding on the sliding tracks, and that extend through the mounting plates in parallel with the pair of parallel sliding tracks. A rod is provided to smoothen the sliding of the linear motion bearing on the sliding track, and a plurality of guide plates having an upward inclined surface and a vertical surface connected therebelow are fixed to the mounting plate. The metal plate is guided by the inclined surface and the vertical surface and descends, and a certain amount of the metal plate is adjusted in its end surface and sent out as an integral block.

[Operation] In the aligning device of the present invention, as the linear motion bearing located on the sliding track slides, the mounting plate to which the linear motion bearing is fixed can move so as to adjust the space between the mounting plates. . Therefore, the interval between the mounting plates can be adjusted according to the plate width of the metal plate flowing through the process.

In addition, the vertical surfaces of the plurality of guide plates fixed to the facing surfaces of the mounting plate serve as alignment portions, whereby the stacking position of the metal plates fed into the aligning device can be accurately determined, and the stacking of the stacked metal plates can be performed. There is no vertical displacement of the end faces. Therefore, it is not necessary to correct the misalignment, and it is possible to prevent scratches that are likely to occur when correcting the misalignment.

Further, the inclined surface provided on the guide plate and the subsequent vertical surface prevent clogging of the metal plate when being fed into the aligning device. That is, the metal plate is smoothly fed from the inclined surface portion of the guide plate to the vertical surface portion.

In this way, the metal plates are arranged in a laminated shape at the vertical portions of the guide plates adjusted to have a width substantially equal to that of the metal plates.

[Embodiment] In the aligning device 1 shown in FIGS. 1 and 2, a pair of mounting plates 10 are arranged in an upright state so as to receive a metal plate so as to face each other at regular intervals. In the drawing, the right end is omitted. A plurality of guide plates 12 to be described later are arranged along the facing surfaces of the mounting plate 10, and are fixed to the mounting plate 10, respectively. Between the plurality of guide plates 12, each mounting plate 10 is provided with rectangular openings 10a and 10b vertically. In the opening 10a on the upper side,
The upper rotary plate 14 is attached so as to be vertically rotatable. Then, under the upper rotating plate 14, the lower opening 10b is formed.
The lower rotary plate 16 is attached to the upper and lower parts so as to be vertically rotatable.

The upper rotary plate 14 receives the metal plates 8 one by one within the predetermined interval and rotates by the weight of the one metal plate 8 to move the metal plates 8 onto the lower rotary plate 16. The lower rotary plate 16 rotates by the weight of a certain amount of metal plate, and sends the certain amount of metal plate downward. An appropriate conveyor device is provided below the aligning device 1 and sends the sent metal plate to the next step.

Below the mounting plate 10, a pair of parallel sliding tracks 18 are arranged so as to be orthogonal to the mounting plate 10. Corresponding to the sliding track 18, the mounting plate 10 is provided with a pair of linear motion bearings 20, respectively. In the drawings, only one of the pair of linear motion bearings 20 is shown. The linear bearings 20 allow the mounting plates 10 to move. Then, the linear motion bearing 20 slides on the sliding track 18 so that the mounting plates 10 can move toward and away from each other.

Furthermore, the guide rod 22 slides on the sliding track 18
It runs parallel to. The guide rod 22 penetrates a guide hole 24 provided in the mounting plate 10 to guide the movement of the mounting plate 10. In other words, the sliding track 18, the guide rod 22, the lower end of the mounting plate 10 and the linear motion bearing 20 constitute a substantially rectangular shape, and the aligning device 10 has rigidity to reduce rattling.
The movement of the mounting plate 10 along the sliding track 18 and the guide rod 22 is made smooth. Thus, the mounting plate 1 according to the width of the metal plate
It is possible to slide 0 in the direction of the guide rod and guide it to its predetermined position to adjust the spacing of the mounting plates 10, and eliminate the vertical displacement of the laminated plate descending via the lower rotary plate 13.

Further, the plurality of guide plates 12 have upwardly inclined surfaces 10
A and a vertical surface 10b that is connected to the lower surface a are provided, and the metal plate is guided by the inclined surface 10a and the vertical surface 10b to descend. Here, the upward inclined surface means that the inclined surface is provided so that the wall thickness increases in the direction in which the surfaces of the mounting plate face each other as going from the upper side to the lower side.

The thickness of the 42 alloy strip cut out after being pressed was 0.
25 mm, 30 mm wide and 180 mm long lead frame material for semiconductor substrate is used in the alignment device 1 of the present invention.
When a total of 50,000 sheets were aligned by stacking them one by one, the defect occurrence rate caused by scratches on the surface of the lead frame was only 0.08%. It is clear that this is a great improvement as compared with the conventional defect occurrence rate of 0.5%.

[Advantage of the Invention] With the aligning device of the present invention, the handling flaws, that is, the scratches generated on the surface of the metal plate to be handled, are significantly reduced. As a result, the metal plate to be sent to the next step will flow stably, which will greatly contribute to the electronic equipment industry.

[Brief description of drawings]

 FIG. 1 is a perspective view of a metal plate aligning device of the present invention. FIG. 2 is a sectional view taken along the line AA of FIG. FIG. 3 is a perspective view of a conventional aligning device for metal plates. 1 ... Aligning device, 2 ... Guide plate, 4 ... Upper rotary plate, 6 ... Lower rotary plate, 8 ... Metal plate, 10 ... Mounting plate, 10a, 10b ... Opening, 12 ... Guide plate , 12a ... slope, 12b ... vertical surface, 14 ... upper rotary plate, 16 ... lower rotary plate, 18 ... sliding track, 20 ... linear bearing, 22 ... guide rod, 24 ... guide Hole,

Claims (2)

[Scope of utility model registration request] 1. A pair of mounting plates arranged in an upright state so as to face each other at a constant interval, an upper rotary plate rotatably mounted on each of the mounting plates in a vertical direction, and an upper rotary plate of the upper rotary plate. And a lower rotary plate attached to each mounting plate so as to be rotatable in the vertical direction. The upper rotary plate receives the metal plates one by one within the predetermined interval, and the weight of the one metal plate. Rotate to move the metal plate onto the lower rotary plate, and the lower rotary plate rotates with the weight of the fixed amount of metal plate to send out the fixed amount of metal plate. In the device, a pair of parallel sliding tracks are arranged under the mounting plate so as to be orthogonal to the mounting plate, and each of the mounting plates is provided with a pair of linear motion bearings. Is movable, and the linear motion bearing slides on the sliding track to mount the On the sliding track of the linear motion bearing, by providing a pair of guide rods that penetrate the mounting plate and extend parallel to the pair of parallel sliding tracks. Smooth sliding,
A plurality of guide plates each having an upward inclined surface and a vertical surface connected to the lower surface are fixed to the mounting plate, and the metal plate is guided by the inclined surface and the vertical surface and descends, and the fixed amount of the metal. An aligning device for metal plates whose edges are arranged and sent out as an integral block. 2. The apparatus for aligning metal plates according to claim 1, wherein the inclined surface is within a range of a height of rotation of the upper rotary plate, and the vertical surface is within a range of a height of rotation of the lower rotary plate. .