JPS61295967A - Stacker device - Google Patents

Abstract

PURPOSE:To make a long work stackable in an orderly manner, by installing a second support part which receives the long work when the specified number of pieces are mounted on a mounting part, in case of a stacker device for a lead frame or the like cut by a press. CONSTITUTION:A long work 12 of a lead frame or the like formed by a press unit stops as both side edges are supported by both support plates 14a of a stacker device, and it is cut by a cutting punch 24 and simultaneously a release mechanism C operates, whereby the support of a support part A is released, and so it is made to drop down and mounted on a belt conveyor 18. And, then the specified number od pieces are stacked up, each claw 22 of a second support part is projected out and receives the lead frame 12 dropped in succession for the time being. During this while, a shutter is opened, operating the belt conveyor 18, and these lead frames 12 being stacked as many as the specified number od pieces are carried out. Afterward, the shutter is closed, releasing the second support part B, each lead frame 12 received temporarily is dropped onto the belt conveyor 18, thus they are mounted thereon.

Description

Detailed Description of the Invention (Industrial Field of Application) This invention is a method for stacking long objects such as lead frames processed with a press machine or the like and cut into predetermined lengths in an orderly manner.
The present invention relates to a stacker device that can eject a predetermined number of sheets.

(Prior Art) Conventionally, long objects such as lead frames after press working have been cut into predetermined lengths immediately after press working, and then aligned by +a on a belt conveyor.

Further, immediately after pressing, long objects were cut one after another and simply dropped and stacked.

(Problem to be Solved by the Invention) Therefore, in the former of the above conventional examples, the long objects that have been cut in sequence are generally delivered from the bell 1 to the conveyor, so that the long objects come into contact with each other as in the latter of the conventional examples. Although they will not get scratched by touching each other, a separate device is required to stack long objects in an orderly manner at the belt conveyor's delivery location, and space for the belt conveyor must be secured.

In addition, in the latter case, since the long objects are thin, the tips of the pressed long objects tend to bend, and even when being fed, the bent ends may get caught on the surface of the already stacked long objects, or There is a risk of causing scratches.

(Means for Solving the Problems) Therefore, this invention eliminates the above problems,
It has the following configuration.

As shown in FIG. 1, a first support section A includes a pair of support plates 14a, 14a that support both sides of a long object 12, such as a lead frame, which is sent after being processed in a predetermined manner using a press machine or the like; When the long object 12 is fed a predetermined length, it is cut by a cutting bunch 24 connected to a cutting device as appropriate, and a release mechanism C that releases the support of the first support part A in synchronization with this cutting; a placing part located below the first supporting part A, on which the elongated object 12 that falls when the support of the first supporting part A is released; and a placing part halfway between the first supporting part A and the placing part; When a predetermined number of elongated objects 12 are placed on the placing part at the position, a second elongated object 12 is installed to catch the falling elongated objects 12 until the elongated objects 12 on the placing part are carried out. It is characterized by consisting of two supporting parts B.

(effect) Next, the operation of this invention will be described.

A long object 12 such as a lead frame that has been processed in a predetermined manner using a press machine or the like and sent is supported by the first support section A. Then, when the long object 12 that has been fed a predetermined length is cut by a cutting bunch 24 connected to a cutting device as appropriate, the long object 12 of the first support part A is cut by a release mechanism C synchronized with this cutting operation. The support is released and the elongated object 12 is dropped onto the mounting section.

In addition, when a predetermined number of long objects 12 are placed on the placement section, the length of the falling objects 12 is kept until the predetermined number of long objects 12 on the placement section are taken out. The length object 12 is supported by the second support part B. Furthermore, a predetermined number of long objects 1 on the placing section
When the object 2 is carried out, the support of the second support part B is released and the elongated object 12 on the second support part B is dropped onto the placing part.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail based on the accompanying drawings.

[First Embodiment] FIG. 1 is a front view of a stacker device, and FIG. 2 is a side view thereof.

Reference numeral 12 denotes a lead frame (long object), which is processed by a press machine as appropriate and transported out of the mold.

Further, reference numeral 14a denotes a pair of support plates disposed in parallel to support both edges of the back surface of the lead frame 12 being transported. The support plates 14a, 14a are formed so as to be able to move toward and away from each other so as to release the support of the lead frame 12 and allow it to fall downward, and constitute the first support portion 8 of the lead frame 12.

The support plate 14. A guide plate 16.16 is provided below 14a in parallel so that the lead frame 12 falls horizontally.

Reference numeral 18 denotes a belt conveyor on which the falling lead frame 12 is placed, and this belt conveyor 18 is arranged in parallel along the guide plate 16 so as to support both edges of the back surface of the lead frame 12. .

Reference numeral 20 denotes a vertically movable shutter provided at the leading end of the lead frame 12 in the feeding direction (see FIG. 2).

A plurality of through holes 16a (three shown in the upper part of FIG. 2) are bored in the horizontal direction of each guide plate 16.16.
A comb-shaped support claw 22 is provided so as to be able to protrude and enter from 6a.

24 is a cutting bunch which is appropriately connected to a cutting device.

Next, a release mechanism for releasing the support of the lead frame 12 by the first support part A will be described.

The upper end of a rotating arm 26 that hangs down from the outer side edge of each of the support plates 14a, 14a is fixed, and a midway portion of the rotating arm 26 is supported on a fixed rotating shaft 28. and,
At the lower end of the rotating arm 26, the other end of a connecting arm 32, one end of which is rotatably supported by a block 30 that moves up and down along the central axis β of both support plates 14a, 14a, is supported. There is. Then, the cam 34 comes into contact with a roller 30a provided at the lower end of the block 30, and the rotation of the cam 34 causes the rib blocker 30 to move up and down. The rotation of the cam 34 is appropriately linked to a transmission means so as to be linked to the operation of the press device.

It is preferable that the support of the lead frame 12 of the first support portion A is released by the rotation of the cam 34 at the same time as the cutting of the lead frame 12 by the cutting bunch 24, or immediately before the cutting.

The supporting claws 22, which are formed to be able to protrude into and out of the through holes 16a of the guide plates 16. It is configured to receive the lead frames 12 that protrude and fall one after another, and to support the lead frames on the bell I conveyor 18 until they are released to the public for 12 months (second support part B). For example, the support claws 22.22 are driven by an air cylinder or the like.

Next, the operation of each part configured as described above will be explained.

The lead frame 12 processed by the press device is discharged, and this lead frame 12 is placed on the support plate 14 of the stacker device.
a, 14.3, it advances while being supported by both side edges and stops at a predetermined position.

Subsequently, the cutting device that is linked to the operation of the press device operates and the lead frame 12 is cut by the cutting bunch 24, while the release mechanism C that is also linked to the press device operates to cut the lead frame 12 immediately before cutting ( (or at the same time as cutting), the support of the first support part A is released, the lead frame 12 falls and is placed on the belt conveyor 18, and the first support part A returns.

Then, the lead frame 12 is sequentially cut in the same manner as above.
Stacked on belt conveyor 18. Belt conveyor 1
When the number of lead frames 12 on 8 reaches a predetermined number (detected by the number of operations of the press device or cutting device, or by detection means such as a sensor provided on the guide plate 16, etc.), the second support is appropriately linked to the detection means. Part B support claw 22.
22 protrudes and then the lead frame 12 falls.
I accept it for a while.

While the second support part B is temporarily receiving the lead frame 12, the shutter 20 is opened and the belt conveyor 18 is operated to carry out a predetermined number of stacked lead frames 12.

When the lead frame 12 is carried out, the shutter 20 is closed, the support of the second support part B is released, and the lead frame 12 temporarily received on the belt conveyor 18 falls and is placed thereon.

In the above embodiments, the belt conveyor is not necessarily required, and a placing section may simply be provided and when a predetermined number of sheets are stacked, they may be manually carried out as appropriate.

[Second example] FIG. 3 shows another embodiment of the stacker device.

Reference numeral 40 denotes a base of the stacker device, which is provided at the ejection position of the lead frame 12 of the press device. This base 4
Guide hole 4 for dropping the lead frame 12 into the center of 0
2 is provided. A longitudinal guide block 44.44 is provided upright at the opening of the guide hole 42, and support plates 14a, 14a, similar to those in the first embodiment, are provided at the upper end of this guide block 44.44 so as to be able to approach and separate. A connecting arm 46 is provided at one end of the support plates 14a and L4a, and the other end of the connecting arm 46 is rotated at the midpoint of a rotating arm 48 whose one end is rotatably fixed on the base 40. It is supported on a shaft for free movement. On the other hand, a guide plate 52 fixed to the upper ram 50 of the press device is attached to the other end of the rotating arm 48.
A bottle 56 is fixed to be guided in a guide groove 54 formed in a substantially L-shape.

Therefore, due to the vertical movement of the upper mold ram 50, the rotating arm 4
8 swings to open and close the support plate 14a.

In this stacker device, the placing section D (heald conveyor 18), the second support section, the cutting device, etc. are configured in the same manner as in the first embodiment.

Therefore, in this embodiment, the lead frame is cut every cycle of the press device. Other effects are the same as those of the first embodiment.

(Effects of the Invention) As explained above, the stuffing device of the present invention can release the support of the first support part by cutting a long object such as a lead frame. Cutting can be performed smoothly, and when the long object is fed out after processing, the tip will not bend because it is supported by the support plate of the first support part, so it will not come into contact with the long objects that have already been stacked. It won't get scratched.

Furthermore, since a stacker device can be provided immediately after the press device, long objects can be stacked neatly in a small space.

Furthermore, since the second support section is activated when a predetermined number of long objects are placed on the placing section, even if processing equipment such as a press is operated continuously, the predetermined number of long objects can be It has great effects such as being able to easily take out objects of size.

The present invention has been variously explained above with reference to preferred embodiments, but it goes without saying that this invention is not limited to the above-mentioned embodiments, and may be modified in many ways without departing from the spirit of the invention. Of course there are scales.

[Brief explanation of the drawing]

FIG. 1 is an explanatory front view showing the stacker device of the first embodiment;
FIG. 2 is a partial side sectional view, and FIG. 3 is a partial sectional view showing essential parts of the second embodiment. A...First support part, B...Second support part, C...
Release mechanism, D... Placement part, 12... Lead frame, 14a... Support plate, 16... Guide plate, 16a... Through hole, 18... Belt conveyor,
20...Shutter, 22...Support claw,
24... Cutting punch, 26... Rotating arm,
28...Rotation axis, 30...Block, 32...
・Connection arm, 34...cam, 40...base,
42... Guide hole, 44... Guide block,
46... Connection arm, 48... Rotating arm, 50... Upper ram, 52... Guide plate, 54...
...Guide groove, 56...Bin.

Claims (1)

[Scope of Claims] 1. A first support part that supports both sides of a long object such as a lead frame that is sent after being processed in a predetermined manner; and the long object is fed a predetermined length and is appropriately cut by a cutting device. a release mechanism that releases the support of the first support part in synchronization with the cutting of the long object; a placing part on which a long object is placed; and a predetermined number of sheets on the placing part when a predetermined number of long objects are placed on the placing part at a midway position between the first support part and the placing part. A stacker device comprising a second support part that catches a falling long object while the long object is being carried out.