JPH0135472Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a flake peeling and conveying device for peeling and conveying thin pieces of a large number of laminated lead frames, etc. one by one, and allows adjusting the amount of frame extrusion by a pusher. It is an object of the present invention to provide a flake peeling and conveying device that has versatility.

The present invention is a flake peeling and conveying device characterized in that the amount of frame extrusion by a pusher can be adjusted, and the drawings show an embodiment thereof.
In the figure, 1 is a cylinder for driving the pusher 2, and an adjuster star 3 is attached to the tip of the cylinder rod. 4 is a push seat holder, L
The pusher 2 is fixed via the mold fitting 5. Reference numeral 6 denotes a positioning pin attached to the pusher holder 4, and the adjuster star 3 is brought into contact with the head of the positioning pin. The positioning pin 6 can be moved forward and backward by loosening the nut 7. Further, depending on the case, the positioning pin 6 may be fixed to the pusher holder 4 so that the adjuster star 3 can move forward and backward relative to the cylinder rod. 8 is push seat holder 4
A spring hook 9 is provided on the cylinder 1, and a tension spring 10 that constantly pulls the pusher 2 toward the cylinder 1 is stretched between them. 11
is a pusher rod 12 that holds the pusher 2, the L-shaped fitting 5 and the pusher holder 4 in motion;
is a housing that supports pusher rod 11,
13 is a pusher guide that guides the pusher 2 to the correct position. Reference numeral 14 designates a pair of shafts erected on the upper plate 16 of the underframe 15, and a stopper 17 is fixed to the upper end of the shaft. 18 is a weight stopper fixed to the stopper 17, and a stepped portion 18a is formed below the weight stopper. 19 is shaft 14
A weight mounting plate 21 is rotatably spanned between the weight guides 19 with a housing 20 interposed between the weight guides. 22 is a weight fixed to the weight mounting plate 21, and 23 is a gripping rod attached to the weight guide 19. 24 is a stocker for storing the stacked lead frames, 24a is a stocker holder that holds the stocker 24 from the outside, 25 is a stocker guide plate fixed to the outside of the stocker 24, and 26 is a stocker mounting block.
A camshaft 27 is rotated by a speed control motor 28, and an upper chuck cam 29, a right lower chuck cam 30, a left lower chuck cam 31, and an elevating cam 32 are fixed to this cam shaft. Reference numeral 33 denotes an upper chuck holder having a cam follower 33a for the upper chuck cam 29, and is slidable along a slide base 35 extending between side plates 34. 36 is the upper part chuck holder 33 that is always connected to the camshaft 27.
It is a spring that pushes it in the direction. 37 is pillar 3
A slide guide 40 is passed between the guide plates 37 by a guide plate which is constantly pushed up by a spring 39 along the guide plate 8. 41 is the slide guide 40
A cam follower 41a for the right lower chuck cam 30 is installed with a right lower chuck holder slidably fitted to the right lower chuck holder. Further, 42 is a left lower chuck holder which is also slidably fitted to the slide guide 40, and this also has a cam follower 42a for the left lower chuck cam 31.
Set up. Lower chuck holder 41, 42
are always pressed in the direction of the camshaft 27 by springs 40a wrapped around the slide guides 40, respectively. 43 is a connector that connects the guide plates 37, and a cam follower 43a that comes into contact with the lifting cam 32 for raising and lowering the guide plate 37;
Set up. 44 is a lower claw base fixed on the left and right lower chuck holders 41, 42, and a lower claw 45 is fixed thereto. 46 is an upper claw base fixed on the upper chuck holder 33, and an upper claw 47 is fixed thereto.

To explain the operation of the present invention, first, when storing stacked frames in the stocker 24, the weight 22 is raised along the shaft 14 by grasping the gripping rod 23, and the weight 22 is reversed at the rising end. the horizontally extending portion 20a of the housing 20 to the stepped portion 18 of the weight stopper 18.
(See Figure 7). Then, the laminated frame is placed in the stocker 24, and the weight 22 is again rotated toward the front and placed on the laminated frame. Then the weight 22 is connected to the shaft 14
As it descends under its own weight, it continues to press the laminated frame from above. Next, when a peeling signal is input, the lower chuck holders 41 and 42 are pushed up by the spring 39 due to the relationship between the elevating cam 32 and the cam follower 43a (FIG. 8b).
Further, the upper chuck opens due to the relationship between the upper chuck cam 29 and the cam follower 33a, and the entire frame rests on the lower claw base 44 (FIG. 8c). Next, lower jack cams 30, 31
From the relationship between and the cam followers 41a and 42a,
The lower chuck holders 41 and 42 are closed (closed together) by the action of the spring 40a, and at this time the lower chuck holders 4
5 interposes between the bottom frame and the frame above it and checks only the bottom frame (8th
Figure d). At this time, the laminated frame is pressurized from above by the weight 22 and is in close contact with the lower claw base 44, so that the lowermost frame is reliably peeled off and chucked. Further, the upper chuck is closed, and the upper claw 47 goes under the second frame from the bottom and then checks the upper frame (FIG. 8e). From the relationship between the lifting cam 32 and the cam follower 43a, the connector 43, the guide plate 37, and the slide guide 40
The lower chuck holders 41, 42 are lowered via the lower chuck (FIG. 8f), with the lower chuck only chucking the lowest frame, while all frames above it are clamped by the upper chuck. Subsequently, the lower chuck opens, and the separated frame becomes free on the lower claw base 44 (FIG. 8g). When the cylinder rod of cylinder 1 moves back in this state,
Pusher holder 4 is pulled by tension spring 10 and follows the cylinder rod, and L
The pusher 2 is connected to the stocker 24 via the mold fitting 5.
The frame on the lower claw base 44 is pushed out of the stocker 24. The pushed forward pusher 2 is pushed back to its original position by the cylinder 1. The extrusion amount of the frame (S in Figure 4) is:
Adjust by loosening the nut 7 and moving the positioning pin 6 forward or backward. When the adjuster star 3 is made movable forward and backward instead of providing the positioning pin 6, adjustment is made by operating it.

The present invention is as described above, and has the effect of making it possible to easily and reliably adjust the amount of frame extrusion, and making the device more versatile.

[Brief explanation of drawings]

Figure 1 is a front view of the main parts of the present invention, Figure 2 is a side view of the device according to the present invention, Figure 3 is a plan view of the same, and Figure 4 is a front view of the main parts of the present invention.
Figure 5 is a front view of the same, Figure 5 is a plan view of the cam mechanism, Figure 6 is a side vertical sectional view thereof, Figure 7 is a diagram showing the reversal of the weight, and Figure 8 is an explanatory diagram showing the chucking operation. be.

Claims (1)

[Claims for Utility Model Registration] (1) A flake peeling and conveying device characterized in that the amount of frame extrusion by a pusher can be adjusted. (2) Scope of Utility Model Registration Claim 1: The amount of frame extrusion can be adjusted by bringing the tip of the cylinder rod of the cylinder that drives the pusher into contact with a positioning pin held in a pusher holder that can move forward and backward. The described flake peeling and conveying device. (3) The flake peeling and conveying device according to claim 1, wherein the amount of frame extrusion can be adjusted by installing an adjuster star that can move forward and backward at the tip of the cylinder rod of the cylinder that drives the pusher.