JPH0244146B2 - TSUMIKASANEJOTAINOTANZAKUJOMETSUKIBUTSUNOBUNRISOCHI - Google Patents

Description

[Detailed Description of the Invention] This invention provides a method for making a plurality of sheets stacked together.
This invention relates to a device for mechanically separating plated strips such as IC lead frames one by one.

It is known that plated strips, such as IC lead frames, are produced by punching out a thin metal plate into a desired pattern using a press, and then plating, for example gold plating, the portions corresponding to the islands. By the way, when performing the prescribed processing on such IC lead frames and other strip-shaped plated objects, it is more efficient to process them all at once. It is conceivable to apply the sheets and take them out continuously. However, when thin plated strips are piled up, they tend to adhere closely to each other and are difficult to separate one by one. Particularly in the case of IC lead frames such as those mentioned above, when punching them into a desired pattern using a press, lubricating oil is often applied to prevent mold wear and other reasons, and if a considerable number of lead frames are piled up, the whole becomes one block. Moreover, if the lubricating oil hardens, it becomes even more likely to form into blocks, making it difficult to separate, so conventionally, in order to separate each sheet, it is necessary to wash the lubricating oil one by one with an organic solvent, break it apart one by one, and stack it again. For example, it is put into the plating process line. Therefore, the separation process took time, labor, and was inefficient.

In view of the above points, this invention was developed to mechanically and efficiently separate plated strips stacked on top of each other in a short time. The strip-shaped plated items are piled up and held almost horizontally, and the bottom strip-shaped plated item is peeled off using a peeling means equipped with a hook.
During this time, the second or higher strip-shaped plating object from the bottom is supported by the second support means.

The details of this invention will be explained below based on the illustrated embodiments. 1 to 5 are diagrams showing an embodiment of the present invention. This device consists of a pair of holders 1,
2, first support means 3, second support means 4, and peeling means 5. A pair of holders 1 and 2 are arranged on two corresponding sides 6a and 6b so that a plurality of rectangular plated objects 6 (hereinafter referred to as "plated objects") can be stacked and tilted.
In the illustrated example, the plate is L-shaped in longitudinal section so as to be held at the side. The holders 1 and 2 are installed facing each other on the base plate 7 so that the interval W can be freely adjusted, and has versatility for plating objects 6 of different widths. This problem is dealt with by making the direction free. The base plate 7 is previously provided with an opening 8 corresponding to the maximum value of the interval W, and a conveying roller or other unillustrated take-out device is provided below the opening 8.

The first support means 3 consists of a protrusion 9 and a support body 10, and the protrusion 9 is protruded and fixed in a state facing inward from the outside of the holder 1, that is, between the two holders 1 and 2, in order to support one side 6a of the plated object 6. They have a triangular shape, and are provided at a plurality of locations in the longitudinal direction of the holder 1 (left-right direction in FIG. 1). The amount of protrusion of the triangular projection 9 may be such that it can slightly support one side 6a of the plated object 6 below. In addition, 11 is a window opening, and the holder 1 is used to position the protrusion 9.
is formed. The support body 10 is positioned so as to protrude from the outside of the holder 2 in correspondence with the protrusion 9, that is, to move forward and backward from the outside to the inside of the holder 2, that is, between the two holders 1 and 2.
For this purpose, a window opening 12 is formed in the holder 2, and as shown in FIGS. 1 and 2, a plurality of supports 10 are arranged in the longitudinal direction of the holder 2 (left and right direction in FIG. 1) to synchronize the forward and backward movements of the holder 2. It's like this.
In order to move these supports 10 forward and backward in synchronization, a guide 13 is provided on the outside of the holder 2 to support the support 10 in a substantially horizontal state, and a return spring 14 is attached to the rear of the support 10. Install guide roller 15 and cam roller 16
It is in contact with the Note that 17 is a groove for preventing rotation, and a stopper bolt 18 is inserted into this groove 17 from the guide 13 and positioned.

The second support means 4 is located on the holder 2 side like the above-mentioned support body 10, and extends into the gap between the lowermost side and the plated objects 19, 20 on the upper side formed by the hooking body of the peeling means 5, which will be described later. The claw body 21 is press-fitted so that it can move forward and backward, and the support body 1 of the first support means 3
It has the function of supporting the upper plating object 19 when the 0 moves backward. The claw body 21 has a sharp tip so that it can easily enter the gap, is supported in a substantially horizontal state by the guide 13 like the previous support body, is equipped with a return spring 22 at the rear, and has a guide roller 23 at the rearmost part. is attached, and this guide roller 23 is brought into contact with a cam roller 24. Further, the second support means 4 has a plurality of claw bodies 21 arranged in the longitudinal direction of the holder 2 at positions adjacent to the previous support body 10, so as to synchronize the forward and backward movement of the second support means 4 in the same manner as the support body 10.

The peeling means 5 is located on the side of the holder 2 and is movable toward and away from one side 6b of the lowest plating object 20, and engages and presses the hook 25 from diagonally above, and removes the plating object above it. 20 more glazed than 19
This is what makes it peel off. In the illustrated example, a round bar 27 having an inclined groove 26 with a serrated cross section at its tip is used as the hooking body 25, and its rear part [corresponding to the first rod 42 described later] is a first guide holder. It is supported by 28. This first
The guide holder 28 positions the round bar 27 as the hooking body 25 obliquely from the diagonally upward direction to the diagonally downward direction. 29 is the arm, the tip is the first
It is connected to a guide holder 28, its rear end is connected to a tension spring 30, and a guide roller 31 provided at the center is brought into contact with a cam roller 32. This arm 29 constantly applies the tension force of the tension spring 30 to one side 6b of the plated object 20.
By bringing the guide roller 31 into contact with the cam roller 32, the round bar 27 is swung as shown by the arrow curve 33 in FIGS. 3 and 5 B. It is something that forces you to do something. The rearmost portion of the round bar 27 (corresponding to the first rod 42 described later) protrudes from the first guide holder 28, and the spherical body 3 is attached thereto.
4 is fixed. In order to transmit forward and backward movements, a roller 35 for pressing against the spherical body 34 is provided at the tip, a guide roller 36 and a return spring 37 are provided at the rear end, and the roller 35 is brought into contact with a cam roller 38.
The second rod 39 is supported by a second guide holder 40.

Incidentally, such a peeling means 5 is attached to the hooking body 2.
A plurality of round bars 27 as 5 are arranged in the longitudinal direction of the holder 2 so as to be located in the vicinity of the claw body 21. Therefore, in the illustrated example, the plurality of round bars 27 are each arranged from the window opening 12 of the holder 2. With the arms facing inward, attach the rear of each round bar 27 to the arm 41.
The first rod 42 supports both ends of this arm 41.
These first rods 42 are further supported by the first guide holder 28. [See Figures 3 and 4] Next, the operation will be explained.

When a plurality of plated items 6 are piled up and stored between a pair of holders 1 and 2, one side 6a of the bottom plated item 20 forms triangular protrusions 9 at several points in the longitudinal direction. The other side 6b is similarly supported at a plurality of locations by the support body 10, so that the entire plated object 6 is held between the holders 1 and 2 in a substantially horizontal state (FIG. 5A).

At this time, the claw body 21 of the second support means 4 has retreated, but the hook body 25 of the peeling means 5 [round bar 2
7] is always urged toward the other side 6b of the plated item 20 by the tension spring 30, so the inclined groove 26 engages with the other side 6b of the plated item 20 [FIG. 5A] .

In this state, when the second rod 39 is advanced through the guide roller 36 by the rotation of the cam roller 38 against the force of the return spring 37, the pressing roller 35 presses the spherical body 34, and the first rod 42 Then, each round bar 27 advances obliquely downward via the arm 41 and forcibly connects the other side 6b of the plating object 20 engaged with the inclined groove 26 to the plating object 1.
The film is peeled off so as to bend slightly downward from the bottom surface of the film 9, thereby forming a "gap" there.

Then, the cam roller 24 is rotated, the pawl body 21 is advanced through the guide roller 23 against the pressing force of the return spring 22, and the plating object 1 is moved forward.
It is press-fitted into the "gap" between 9 and 20, and the lower side of the plating object 19 is supported by the claw body 21. At the same time, the pressing force on the support 10 is released by the rotation of the cam roller 16, and the return spring 14 is released.
Step back and release the support for the plating object 20 [Figure 5 B].

Further, the round bar 27 advances diagonally downward and the inclined groove 2
By pressing the other side 6b of the plating object 20 while being engaged at 6, the plating object 20 is connected to the plating object 19.
It will completely peel off from the bottom side. This peeled plating object 20 falls downward from the opening 8 of the base plate 7 and is taken out from between the holders 1 and 2, but immediately after the peeling, it is bent or deformed due to interference by the round bar 27. As the guide roller 31 and arm 29 move in accordance with the rotation of the cam roller 32, the round bar 27 swings slightly as shown by the arrow curve 33 in FIG. This is to prevent interference in advance.

During this time, the claw body 21 touches the bottom surface of the plated object 19 with the protrusion 9.
However, after waiting for the support 10 to move forward again, the support 10 moves back and supports the plating object 19 (specifically, the lowermost plating object 2).
0] and reproduces the very first state [Fig. 5 C].

The first support, gap formation, second support, and peeling of the plated objects 6, 19, 20 in a horizontal state are carried out by the first support means 3, the second support means 4, and the peeling means 5. Since the plating is applied to a plurality of locations in the longitudinal direction of the plate 20, separation of the plated objects 6 that are in close contact with each other can be smoothly performed.

As explained above, according to the present invention, the configuration includes a pair of holders that hold a plurality of stacked strip-shaped plated objects on their corresponding two sides, and a height direction of the holder. A protrusion is protruded from one holder between the two holders to support the two sides of the lowermost strip-shaped plated object in a substantially horizontal state, and a protrusion is provided that can be moved forward and backward from the other holder in response to this protrusion. a first support means having a support positioned to protrude from the holder, and a hook body which is movable forward and backward from one side of the lowermost strip-shaped plated object of the holder on the other side and is hooked from diagonally above. A peeling means for pressing and peeling, and a second support means, which is also located on the other holder side and press-fits the claw body between the lowermost strip-shaped plating material and the uppermost strip-shaped plated material by moving it forward and backward. As a result, even if the plated strips are stacked in close contact with each other, the bottom plated material can be surely peeled off, and the separation and removal of a single sheet can be achieved mechanically and automatically. There is an effect that it can be done,
This eliminates the need for separation treatment, such as cleaning with an organic solvent, which was conventionally applied to IC lead frames after pressing, and has the effect of significantly shortening processing time.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view of a portion excluding the peeling means, showing one embodiment of the apparatus according to the present invention;
The figure is an enlarged plan view of the main parts in Figure 1, and Figure 3 is an enlarged plan view of the main parts in Figure 1.
Holder, support means, seen from the direction of the arrow in the figure,
a side view showing the positional relationship between the entry means and the peeling means;
FIG. 4 is a schematic plan view showing a part of the peeling means, and FIGS. 5A, 5B, and 5C are explanatory diagrams showing the movements of the support, the pawl, and the round bar. 1, 2...Holder, 3...First support means, 4
... second support means, 5 ... peeling means, 6, 19,
20...Rectangular plated material, 6a, 6b...2 sides,
7... Base plate, W... Spacing, 8... Opening, 9... Protrusion, 10... Support body, 11, 12...
...Window opening, 13...Guide, 14, 22, 37...
...Return spring, 15, 23, 31, 36
...Guide roller, 16, 24, 32, 38...
Cam roller, 17...Groove, 18...Stopper bolt, 21...Claw body, 25...Hook body, 26...
... Inclined groove, 27 ... Round bar, 28 ... First guide holder, 29, 41 ... Arm, 30 ... Tension spring, 33 ... Arrow curve, 34 ... Spherical body, 35 ... Pressing Roller, 39...Second rod, 40...Second guide holder, 42...First
Rod.

Claims (1)

[Scope of Claims] 1. A pair of holders that hold a plurality of stacked strip-shaped plated objects on their corresponding two sides; In order to support the two sides of the strip-shaped plated object in a substantially horizontal state, there is provided a protrusion fixedly protruding from one of the holders between the two holders, and a support body corresponding to the protrusion and positioned to protrude from the other holder so as to be able to move forward and backward. The first supporting means is engaged with a hanging body that is movable toward and away from one side of the lowermost strip-shaped plated object on the other side of the holder and is hooked from diagonally upward, and is then pressed and peeled off. and a second support means, which is also located on the other holder side and allows the pawl to move forward and backward and press fit between the lowermost and upper strip-shaped plated objects. separation device.