CN111376343A - A die-cutting device for multi-layer polyimide products with handles - Google Patents

Abstract

The invention relates to a die cutting device for a multilayer polyimide product with a handle, wherein the multilayer polyimide product comprises a first double-sided adhesive layer, a polyimide layer and a second double-sided adhesive layer which are sequentially attached to each other, the length of the polyimide layer is greater than that of the first double-sided adhesive layer, and the die cutting device comprises a first double-sided adhesive feeding unit, a first double-sided adhesive die cutting unit, a first waste discharge unit, a polyimide feeding unit, a polyimide die cutting unit, a second waste discharge unit, a carrier film feeding unit, a handle film replacing unit and a handle film die cutting unit which are sequentially arranged along the moving direction of a material belt. Compared with the prior art, the size of the first double-sided adhesive layer is reduced, no knife mark residue is left on the handle film, and the condition that the handle film cannot be smoothly torn off due to adhesion of the first double-sided adhesive layer and the handle film is avoided.

Description

A die-cutting device for multi-layer polyimide products with handles

technical field

The invention belongs to the technical field of polyimide products, and relates to a die-cutting device for a multi-layer polyimide product with a handle.

Background technique

Existing multi-layer polyimide products generally have a structure of double-sided tape + polyimide + double-sided tape. For ease of use, a handle is usually added to one of the layers of double-sided tape. This multi-layer polyimide product with handle is made of multiple layers of materials, so its overall thickness is relatively large. The handle cannot be torn off smoothly, or the rest of the product attached to the workpiece is directly pulled and deformed.

The study found that the above situation occurs, on the one hand, because the glue on the double-sided tape is fluid and will penetrate into the knife mark on the handle, causing the handle to be unable to be peeled off smoothly; on the other hand, the multi-layer polyimide When the product is designed, the size of each layer in the double-sided tape + polyimide + double-sided tape is the same, but when the customer uses the product, the product is first attached to the workpiece and pressed together. High temperature will be generated, causing the layer of double-sided tape that is attached to the handle to overflow, resulting in the size of the layer of double-sided tape being larger than that of polyimide, and the overflowing double-sided tape is not supported by polyimide. , it will stick to the handle, making the handle harder to peel.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a die-cutting device for a multi-layer polyimide product with a handle in order to overcome the above-mentioned defects of the prior art.

The object of the present invention can be realized through the following technical solutions:

A die-cutting device for a multi-layer polyimide product with a handle, the multi-layer polyimide product is arranged on a carrier film, and the multi-layer polyimide product comprises a series of the first double-sided adhesive layer, the polyimide layer and the second double-sided adhesive layer, the second double-sided adhesive layer is attached to the carrier film, and the first double-sided adhesive layer is provided with a handle film, the length of the handle film is greater than the length of the polyimide layer, the length of the polyimide layer is greater than the length of the first double-sided adhesive layer, and the die-cutting device includes a moving direction along the tape The first double-sided tape feeding unit, the first double-sided tape die-cutting unit, the first waste discharging unit, the polyimide feeding unit, the polyimide die-cutting unit, the second waste discharging unit, and the carrier film feeding unit, which are arranged in sequence unit, handle film replacement unit and handle film die-cutting unit. Within the dimensional tolerance range, the size of the first double-sided adhesive layer is appropriately reduced, so that even if a small amount of overflow occurs, the first double-sided adhesive layer is always supported by the polyimide layer and will not stick to the handle film.

Further, the length of the second double-sided adhesive layer is equal to the length of the polyimide layer. The second double-sided adhesive layer is the same size as the polyimide layer and can be die-cut together.

Further, the first double-sided adhesive feeding unit includes a first double-sided adhesive feeding roller and a first double-sided adhesive compound layer wound on the first double-sided adhesive feeding roller, the first double-sided adhesive compound layer. It includes a first thin release film, a first double-sided adhesive layer and an auxiliary release film that are mutually adhered from top to bottom. The first double-sided tape feeding roller sends the first double-sided tape composite layer into the first double-sided tape die-cutting unit. The first thin release film and the auxiliary release film respectively protect both sides of the first double-sided adhesive layer, and the auxiliary release film also plays the role of a material tape.

Further, the first double-sided adhesive die-cutting unit includes a first upper mold seat and a first lower mold seat matched with the first upper mold seat, and a lower surface of the first upper mold seat is provided on the lower surface. There is a first die that is compatible with the first double-sided adhesive layer. The first knife die cuts the first thin release film and the first double-sided adhesive layer to die-cut the outer contour of the first double-sided adhesive layer.

Further, the first waste discharge unit includes a first waste discharge roller disposed above the material belt and a first waste discharge roller driving motor connected to the first waste discharge roller in a driving manner. The first waste discharge roller discharges the waste of the outer contour of the first thin release film and the first double-sided adhesive layer.

Further, the polyimide feeding unit includes a polyimide feeding roller arranged above the material belt and a polyimide composite layer wound around the polyimide feeding roller. The layers include a second thin release film, a second double-sided adhesive layer and a polyimide layer that are mutually adhered from top to bottom. The polyimide feeding roller sticks the second double-sided adhesive layer and the polyimide layer on the die-cut first double-sided adhesive layer, and passes the second thin release film to the second double-sided adhesive layer. Protect.

Further, the polyimide die-cutting unit includes a second upper die base and a second lower die base matched with the second upper die base, and the lower surface of the second upper die base is provided with A second die adapted to the polyimide layer. The second knife die cuts the second thin release film, the second double-sided adhesive layer and the polyimide layer to die-cut the outer contour of the second double-sided adhesive layer and the polyimide layer.

Further, the second waste discharge unit includes a second waste discharge roller arranged above the material belt and a second waste discharge roller driving motor connected to the second waste discharge roller in a driving manner. The second waste discharge roller discharges the outer contour waste of the second thin release film, the second double-sided adhesive layer and the polyimide layer.

Further, the carrier film feeding unit includes a carrier film feeding roller arranged above the material belt and a carrier film wound around the carrier film feeding roller; the handle film replacement unit includes a moving direction of the material belt. The auxiliary release film discharging roller and the handle film feeding roller under the material belt are provided with a handle film around the handle film feeding roller. The carrier film feeding roller attaches the carrier film to the second thin release film after die-cutting, instead of the auxiliary release film as the material belt. The auxiliary release film discharge roller discharges the auxiliary release film from the first double-sided adhesive layer, and then the handle film feeding roller attaches the handle film to the first double-sided adhesive layer.

Further, the handle film die-cutting unit includes a third upper die base and a third lower die base matched with the third upper die base, and the upper surface of the third lower die base is provided with a handle. The third die that the film is compatible with. The third knife die-cuts the handle film to die-cut the outer contour of the handle film.

As a preferred technical solution, the die-cutting device further includes a third waste discharge unit, the third waste discharge unit includes a third waste discharge roller and a drive motor of the third waste discharge roller connected to the third waste discharge roller. The third discharge roller discharges the outer contour waste of the handle film.

In practical application of the present invention, since the size of the first double-sided adhesive layer is smaller than that of the polyimide layer, in use, even if a small amount of overflow occurs in the first double-sided adhesive layer, it will not exceed the size of the polyimide layer. Therefore, the first double-sided adhesive layer is always supported by the polyimide layer to avoid sticking to the handle film. When die-cutting, first die-cut the first double-sided adhesive layer with a smaller size, then laminate the first double-sided adhesive layer with the polyimide layer and the second double-sided adhesive layer, and then die-cut the larger-sized polyamide layer. The imide layer and the second double-sided adhesive layer, and finally the handle film is pasted on the first double-sided adhesive layer, and the handle film is die-cut.

Compared with the prior art, the present invention has the following characteristics:

1) By reducing the size of the first double-sided adhesive layer to make it smaller than the size of the polyimide layer, even if a small amount of overflow occurs in the first double-sided adhesive layer, it will not exceed the scope of the polyimide layer, Effectively avoids the situation that the handle film cannot be peeled off smoothly due to the adhesion of the first double-sided adhesive layer and the handle film;

2) Using the auxiliary release film as the material tape for die-cutting the first double-sided adhesive layer, the polyimide layer, and the second double-sided adhesive layer, the first double-sided adhesive layer, the polyimide layer, the Die-cutting the two double-sided adhesive layers, and finally attaching the handle film and die-cutting the handle film, which avoids the residual knife print on the handle film and the infiltration of glue, and makes the handle film easier to peel off.

Description of drawings

Fig. 1 is the structural representation of multilayer polyimide product in the present invention;

Fig. 2 is the overall structure schematic diagram of the die-cutting device in the present invention;

Fig. 3 is the structural representation before the material tape enters the first double-sided tape die-cutting unit in the present invention;

Fig. 4 is the structural representation before the material tape enters the polyimide die-cutting unit in the present invention;

Description of marks in the figure:

1—The first double-sided adhesive layer, 2—polyimide layer, 3—the second double-sided adhesive layer, 4—handle film, 5—the first double-sided adhesive feeding roller, 6—the first double-sided adhesive compound layer , 7—the first thin release film, 8—the auxiliary release film, 9—the first upper die holder, 10—the first lower die holder, 11—the first knife die, 12—the first waste roll, 13— Polyimide feeding roller, 14—Polyimide composite layer, 15—Second upper die holder, 16—Second lower die holder, 17—Second knife die, 18—Second waste discharge roller, 19—Carrier Film feed roller, 20—carrier film, 21—auxiliary release film discharge roller, 22—handle film feed roller, 23—third upper die holder, 24—third lower die holder, 25—third die, 26 -Second thin release film.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and provides a detailed implementation manner and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

Example:

As shown in FIG. 1, the multi-layer polyimide product is disposed on the carrier film 20, and the multi-layer polyimide product includes a first double-sided adhesive layer 1, a polyimide layer 2, a second double-sided adhesive layer that are attached to each other in sequence The double-sided adhesive layer 3, the second double-sided adhesive layer 3 is attached to the carrier film 20, the first double-sided adhesive layer 1 is provided with a handle film 4, and the length of the handle film 4 is greater than the length of the polyimide layer 2, The length of the polyimide layer 2 is greater than the length of the first double-sided adhesive layer 1 , and the length of the second double-sided adhesive layer 3 is equal to the length of the polyimide layer 2 .

As shown in Figure 2, a die-cutting device for a multi-layer polyimide product with a handle includes a first double-sided tape feeding unit, a first double-sided tape die-cutting unit, a first double-sided tape die-cutting unit, and First waste discharge unit, polyimide feeding unit, polyimide die-cutting unit, second waste discharge unit, carrier film feeding unit, handle film replacement unit and handle film die-cutting unit.

The first double-sided tape feeding unit includes a first double-sided tape feeding roller 5 and a first double-sided tape compound layer 6 wound around the first double-sided tape feeding roller 5. As shown in FIG. The surface adhesive composite layer 6 includes a first thin release film 7 , a first double-sided adhesive layer 1 and an auxiliary release film 8 that are mutually adhered from top to bottom.

The first double-sided adhesive die-cutting unit includes a first upper die base 9 and a first lower die base 10 that is adapted to the first upper die base 9 . The first die 11 adapted to the surface adhesive layer 1 .

The first waste discharge unit includes a first waste discharge roller 12 disposed above the material belt and a first waste discharge roller driving motor in driving connection with the first waste discharge roller 12 .

The polyimide feeding unit includes a polyimide feeding roller 13 arranged above the material belt and a polyimide composite layer 14 wound on the polyimide feeding roller 13. As shown in FIG. 4, the polyimide The amine composite layer 14 includes a second thin release film 26 , a second double-sided adhesive layer 3 and a polyimide layer 2 that are adhered to each other in sequence from top to bottom.

The polyimide die-cutting unit includes a second upper die base 15 and a second lower die base 16 matched with the second upper die base 15. The lower surface of the second upper die base 15 is provided with polyimide Second die 17 adapted to layer 2.

The second waste discharge unit includes a second waste discharge roller 18 arranged above the material belt and a second waste discharge roller driving motor which is drivingly connected with the second waste discharge roller 18 .

The carrier film feeding unit includes a carrier film feeding roller 19 arranged above the material belt and a carrier film 20 wound around the carrier film feeding roller 19; the handle film replacement unit includes auxiliary separators arranged in sequence below the material belt along the moving direction of the material belt. The molding film discharging roller 21 and the handle film feeding roller 22 are provided with a handle film 4 around the handle film feeding roller 22 .

The handle film die-cutting unit includes a third upper die base 23 and a third lower die base 24 that is adapted to the third upper die base 23. The upper surface of the third lower die base 24 is provided with a handle film 4 adapted to it. The third die 25.

In practical application, since the size of the first double-sided adhesive layer 1 is smaller than that of the polyimide layer 2, even if a small amount of overflow occurs in the first double-sided adhesive layer 1 during use, it will not exceed the polyimide layer. 2, so the first double-sided adhesive layer 1 is always supported by the polyimide layer 2 to avoid sticking to the handle film 4. When die-cutting, first die-cut the first double-sided adhesive layer 1 with a smaller size, and then attach the first double-sided adhesive layer 1 to the polyimide layer 2 and the second double-sided adhesive layer 3, and then die-cut the size. The larger polyimide layer 2 and the second double-sided adhesive layer 3 are finally attached to the handle film 4 on the first double-sided adhesive layer 1, and the handle film 4 is die-cut.

The foregoing description of the embodiments is provided to facilitate understanding and use of the invention by those of ordinary skill in the art. It will be apparent to those skilled in the art that various modifications to these embodiments can be readily made, and the generic principles described herein can be applied to other embodiments without inventive step. Therefore, the present invention is not limited to the above-mentioned embodiments, and improvements and modifications made by those skilled in the art according to the disclosure of the present invention without departing from the scope of the present invention should all fall within the protection scope of the present invention.

Claims (10)

1. A die-cutting device for a multi-layer polyimide product with a handle, the multi-layer polyimide product is arranged on a carrier film (20), and the multi-layer polyimide product is It comprises a first double-sided adhesive layer (1), a polyimide layer (2), and a second double-sided adhesive layer (3) that are sequentially attached to each other, the second double-sided adhesive layer (3) and a carrier film (20) Adhering to each other, the first double-sided adhesive layer (1) is provided with a handle film (4), It is characterized in that the length of the handle film (4) is greater than the length of the polyimide layer (2), and the length of the polyimide layer (2) is greater than the length of the first double-sided adhesive layer (1). length, the die-cutting device includes a first double-sided tape feeding unit, a first double-sided tape die-cutting unit, a first waste discharge unit, a polyimide feeding unit, a polyimide Amine die-cutting unit, second waste discharge unit, carrier film feeding unit, handle film replacement unit and handle film die-cutting unit. 2. A die-cutting device for a multi-layer polyimide product with a handle according to claim 1, wherein the length of the second double-sided adhesive layer (3) is the same as that of the polyimide The amine layers (2) are of equal length. 3. A die-cutting device for a multi-layer polyimide product with a handle according to claim 1, wherein the first double-sided tape feeding unit comprises a first double-sided tape feeding roller (5) and a first double-sided tape composite layer (6) wound around the first double-sided tape feeding roller (5), the first double-sided tape composite layer (6) including a top-to-bottom adhered to each other in sequence The first thin release film (7), the first double-sided adhesive layer (1) and the auxiliary release film (8). 4. a kind of die-cutting device for multi-layer polyimide product with handle according to claim 1, is characterized in that, described first double-sided adhesive die-cutting unit comprises the first upper die seat ( 9) and a first lower mold seat (10) adapted to the first upper mold seat (9), the lower surface of the first upper mold seat (9) is provided with a first double-sided adhesive layer ( 1) A matching first die (11). 5. A die-cutting device for a multi-layer polyimide product with a handle according to claim 1, wherein the first waste discharging unit comprises a first row disposed above the material belt The waste roller (12) and the driving motor of the first waste discharge roller connected with the first waste discharge roller (12) in a driving manner. 6. A die-cutting device for multi-layer polyimide products with handles according to claim 1, wherein the polyimide feeding unit comprises a polyimide An imine feeding roller (13) and a polyimide composite layer (14) wound on the polyimide feeding roller (13), the polyimide composite layer (14) comprising a top-to-bottom sequence attached to each other. The combined second thin release film (26), the second double-sided adhesive layer (3) and the polyimide layer (2). 7. A die-cutting device for a multi-layer polyimide product with a handle according to claim 1, wherein the polyimide die-cutting unit comprises a second upper die seat (15 ) and a second lower die holder (16) matched with the second upper die holder (15), the lower surface of the second upper die holder (15) is provided with a polyimide layer (2) A matching second die (17). 8. A die-cutting device for a multi-layer polyimide product with a handle according to claim 1, wherein the second waste discharging unit comprises a second row disposed above the material belt The waste roller (18) and the driving motor of the second waste discharge roller connected with the second waste discharge roller (18) in a driving manner. 9 . The die-cutting device for multi-layer polyimide products with handles according to claim 1 , wherein the carrier film feeding unit comprises a carrier film feeding roller arranged above the material belt. 10 . (19) and a carrier film (20) wound around the carrier film feed roller (19); the handle film replacement unit includes an auxiliary release film discharge roller ( 21) A handle film feeding roller (22), a handle film (4) is wound around the handle film feeding roller (22). 10. A die-cutting device for a multi-layer polyimide product with a handle according to claim 1, wherein the handle film die-cutting unit comprises a third upper die seat (23) and A third lower die base (24) adapted to the third upper die base (23), and a third lower die base (24) adapted to the handle film (4) is provided on the upper surface of the third lower die base (24). Three-knife die (25).

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