Self-suction cutter die for punching VHB double faced adhesive tape and application of self-suction cutter die

Abstract

The invention relates to the technical field of die cutting, in particular to a cutting die of a self-suction cutter for punching VHB double faced adhesive tape and application of the cutting die. The self-suction cutter die comprises a self-suction cutter plate and a die cutting plate, the self-suction cutter plate is hollow, the die cutting plate is arranged on the upper surface of the self-suction cutter plate, and a self-suction cavity assembly and a cutter line assembly which are communicated with an inner cavity of the self-suction cutter plate are arranged on the die cutting plate. The self-suction cavity assembly and the knife line assembly are arranged at an interval; the knife line assembly comprises two knife lines which are arranged in parallel in a spaced mode in the width direction of the die cutting plate and used for cutting the VHB double-faced adhesive tape in the length direction of the VHB double-faced adhesive tape, and the self-suction cavity assembly comprises two self-suction cavities which are arranged in parallel in the length direction of the die cutting plate in a spaced mode and used for adsorbing waste, cut by the knife lines, of the VHB double-faced adhesive tape in the width direction. When the self-suction cutter die is further applied to processing of the VHB double-faced adhesive tape, the production yield and productivity of the VHB double-faced adhesive tape can be improved.

Description

Technical Field

[0001] This invention relates to the field of die-cutting technology, and in particular to a self-priming die for punching VHB double-sided tape and its application. Background Technology

[0002] VHB double-sided tape is relatively thick, and its adhesion is stronger for more delicate boards. It can be as thin as 0.05mm and as thick as 2.5mm. In daily life, VHB double-sided tape can be used to attach photo frames or hang items on glass doors, walls, or hardware cabinets. VHB double-sided tape has strong adhesion, allowing smooth plastic parts or metal parts to bond together. Current technology for processing VHB double-sided tape involves bonding the tape to a release film and then using a die to cut out the product shape (e.g., ...). Figure 1 (As shown), the outer frame waste is then removed using a scraper. However, because the VHB double-sided tape is relatively thick and has strong adhesion, it is prone to re-adhesion during the punching and waste removal process, which makes waste removal difficult and can easily lead to product deformation and low finished product yield.

[0003] Therefore, it is crucial to provide a method that can solve the above problems. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a self-absorbing die for punching VHB double-sided tape and its application.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] The first objective of this invention is to provide a self-absorbing die for VHB double-sided tape, comprising a self-absorbing die plate and a die-cutting plate; the self-absorbing die plate is hollow inside, the die-cutting plate is disposed on the lower surface of the self-absorbing die plate, and the die-cutting plate is provided with a self-absorbing cavity assembly and a die line assembly that communicate with the inner cavity of the self-absorbing die plate;

[0007] The self-priming cavity assembly and the blade wire assembly are spaced apart;

[0008] The self-priming cavity assembly includes two self-priming cavities that are arranged parallel and spaced apart along the length of the die-cutting plate;

[0009] The cutting edge assembly includes two cutting edges that are parallel and spaced apart along the width direction of the die-cutting plate.

[0010] In one embodiment of the present invention, the length of the self-priming cavity is the same as the spacing between adjacent cutter lines;

[0011] The length of the blade is the same as the distance between adjacent self-priming cavities.

[0012] In one embodiment of the present invention, the width of the self-priming cavity is 4-6 mm larger than the thickness of the blade.

[0013] In one embodiment of the present invention, the self-priming cavity assembly is provided in one or more sets;

[0014] When there are two or more sets of self-priming cavity assemblies, the self-priming cavity assemblies are arranged vertically in parallel intervals.

[0015] In one embodiment of the present invention, the blade assembly is provided in one or more sets;

[0016] When there are two or more sets of blade edge assemblies, the blade edge assemblies are arranged at vertical parallel intervals.

[0017] The second objective of this invention is to provide an application of a self-absorbing die for punching VHB double-sided tape in the preparation of die-cutting components.

[0018] A third objective of the present invention is to provide a die-cutting assembly comprising an upper die body and a lower die body that cooperate with each other, wherein the upper die body is provided with the aforementioned self-absorbing die for VHB double-sided adhesive on the side of the lower die body.

[0019] The fourth objective of this invention is to provide a processing method for VHB double-sided adhesive, comprising the following steps:

[0020] (S1) Along the direction of material conveyor belt travel, release film and bottom protective film are respectively fed out by the first feeding component and the second feeding component;

[0021] (S2) After step (S1) is completed, VHB double-sided adhesive is fed out using the third feeding component, and after post-processing, auxiliary release film is fed out using the fourth feeding component to obtain the composite structure layer.

[0022] (S3) The composite structure layer obtained in step (S2) is punched and self-absorbed in sequence using the above die-cutting assembly, and the finished product is wound up using the winding assembly after post-processing.

[0023] In one embodiment of the present invention, in step (S1), the first feeding component delivers the release film, which is performed simultaneously with the second feeding component delivering the bottom protective film.

[0024] In one embodiment of the present invention, in step (S2), the post-processing is to collect and discharge the self-contained film of VHB double-sided adhesive using a first receiving component.

[0025] In one embodiment of the present invention, the composite structure layer consists of, from top to bottom, an auxiliary release film, VHB double-sided adhesive, a release film, and a bottom protective film.

[0026] In one embodiment of the present invention, in step (S3), during the punching process, the composite structure layer is punched using a cutting edge;

[0027] During the self-priming process, the self-priming chamber is used to remove the waste material along the width direction generated after the blade cutting process;

[0028] The post-processing involves manually transferring the product obtained after punching and self-priming to the film on the conveyor belt.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The self-suction cavity in the self-suction die for VHB double-sided adhesive of the present invention can promptly suck up the waste generated after the cutting process into the self-suction cavity. The length of the self-suction cavity is the same as the spacing between adjacent cutting lines. This ensures that the self-suction cavity can remove all waste in the width direction of the product (ensuring removal of waste only in the width direction). When the self-suction die of the present invention is further applied to the processing of VHB double-sided adhesive, since the self-suction cavity removes the waste in the width direction of the product, only the waste in the length direction needs to be manually removed (at this time, the waste is a continuous long strip, which is easy to remove), thereby improving the production yield and capacity of VHB double-sided adhesive. Attached Figure Description

[0031] Figure 1 A schematic diagram of a die-cutting assembly used in existing technology;

[0032] Figure 2 This is a schematic diagram of the self-priming die-cutting mold described in Example 1;

[0033] Figure 3 This is a schematic flowchart of the processing method described in Example 3;

[0034] Figure 4 This is a schematic diagram of the composite structure layer prepared in Example 3;

[0035] Figure 5 This is a schematic diagram of the product prepared in Example 4;

[0036] The following are the labels in the diagram: 1. Cutting line; 2. Self-priming cavity; 3. First feeding assembly; 4. Second feeding assembly; 5. Third feeding assembly; 6. First take-up assembly; 7. Fourth feeding assembly; 8. Die-cutting assembly; 9. Rewinding assembly; 10. Release film for auxiliary materials; 11. VHB double-sided adhesive; 12. Release film; 13. Bottom support protective film. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0038] Unless otherwise specified, all reagents used in the following embodiments are commercially available reagents, and all detection methods and techniques used are conventional detection methods and techniques in the art.

[0039] Example 1

[0040] This embodiment provides a self-suction die for punching VHB double-sided tape, which is connected to a negative pressure machine during use, such as... Figure 2 As shown, it includes a self-priming blade plate and a die-cutting plate; the self-priming blade plate is hollow inside, and the die-cutting plate is disposed on the lower surface of the self-priming blade plate. The die-cutting plate is provided with a self-priming cavity assembly and a cutter line assembly that communicate with the inner cavity of the self-priming blade plate; the self-priming cavity assembly and the cutter line assembly are spaced apart; the self-priming cavity assembly includes two self-priming cavities 2 that are parallel and spaced apart along the length direction of the die-cutting plate; the cutter line assembly includes two cutter lines 1 that are parallel and spaced apart along the width direction of the die-cutting plate.

[0041] The cutting edge 1 is used to cut the VHB double-sided tape along its length, and the self-priming cavity 2 is used to absorb the waste material along its width generated after the VHB double-sided tape is cut by the cutting edge 1.

[0042] The length of the self-priming cavity 2 is the same as the spacing between adjacent cutter lines 1, the length of the cutter line 1 is the same as the spacing between adjacent self-priming cavities 2, and the width of the self-priming cavity 2 is 4-6 mm larger than the thickness of the cutter line 1; two sets of self-priming cavity assemblies are provided (more than one set is actually allowed), and the self-priming cavity assemblies are arranged parallel to each other in the vertical direction; two sets of cutter line assemblies are provided (more than one set is actually allowed), and the cutter line assemblies are arranged parallel to each other in the vertical direction.

[0043] When in use, the self-priming blade plate is connected to the negative pressure machine (the negative pressure machine provides negative pressure to the self-priming blade plate), and the VHB double-sided tape is cut through the blade line 1. Then, the negative pressure machine is started, and the edge waste material (edge ​​waste material in the width direction) obtained by the blade line cutting is sucked into the self-priming chamber 2 through the self-priming chamber 2.

[0044] The self-cleaning blade has a hole on the side away from the die-cutting plate, and a baffle is fitted into the hole.

[0045] Example 2

[0046] This embodiment provides a die-cutting assembly, including an upper die body and a lower die body that cooperate with each other. The upper die body is provided with a self-absorbing die for VHB double-sided adhesive as described in Embodiment 1 on the side near the lower die body.

[0047] Example 3

[0048] This embodiment provides a processing method for VHB double-sided adhesive (such as...). Figure 3 (As shown), including the following steps:

[0049] (S1) Along the direction of material conveyor belt travel, release film is fed out using the first feeding component 3 and bottom protective film is fed out using the second feeding component 4.

[0050] The first feeding assembly 3 includes a first feeding roller and a first feeding roller drive motor, the first feeding roller drive motor controls the first feeding roller to feed out the release film; the second feeding assembly 4 includes a second feeding roller and a second feeding roller drive motor, the second feeding roller drive motor controls the second feeding roller to feed out the bottom protective film.

[0051] (S2) After step (S1) is completed, the VHB double-sided adhesive is fed out using the third feeding component 5, the VHB double-sided adhesive film is collected and discharged using the first receiving component 6, and the auxiliary material release film is fed out using the fourth feeding component 7 to obtain the composite structure layer.

[0052] The third feeding assembly 5 includes a third feeding roller and a third feeding roller drive motor, the third feeding roller drive motor controls the third feeding roller to feed out VHB double-sided adhesive; the first receiving assembly 6 includes a first receiving roller and a first receiving roller drive motor, the first receiving roller drive motor controls the first receiving roller to receive and discharge the self-contained film of VHB double-sided adhesive; the fourth feeding assembly 7 includes a fourth feeding roller and a fourth feeding roller drive motor, the fourth feeding roller drive motor controls the fourth feeding roller to feed out auxiliary release film; the composite structure layer, from top to bottom, consists of auxiliary release film 10, VHB double-sided adhesive 11, release film 12, and bottom protective film 13 (e.g., ...). Figure 4 (As shown).

[0053] (S3) The composite structure layer obtained in step (S2) is punched using the die-cutting assembly 8 described in Example 2, and the waste material generated in the width direction after punching is self-picked up through the self-pickup cavity. The waste material of the punched and self-pickup products is then manually removed. Figure 5 The red part is waste material (at this time, the waste is a continuous long strip, which is convenient to remove), and then it is transferred to the film of the material belt, and the finished product is wound up by the winding assembly 9.

[0054] The winding assembly 9 includes a winding roller and a winding roller drive motor, which controls the winding roller to wind up the finished product.

[0055] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the interpretation of the present invention, without departing from the scope of the invention, should be within the protection scope of the present invention.

Claims

1. A self-priming die for punching VHB double-sided tape, characterized in that, It includes a self-suction blade plate and a die-cutting plate; the self-suction blade plate is hollow inside, the die-cutting plate is disposed on the lower surface of the self-suction blade plate, and the die-cutting plate is provided with a self-suction cavity assembly and a blade line assembly that communicate with the inner cavity of the self-suction blade plate; The self-priming cavity assembly and the cutting edge assembly are spaced apart; the self-priming cavity assembly includes two self-priming cavities that are spaced apart and parallel to each other along the length of the die-cutting plate; the cutting edge assembly includes two cutting edges that are spaced apart and parallel to each other along the width of the die-cutting plate. The length of the self-priming cavity is the same as the spacing between adjacent cutter lines, and the length of the cutter line is the same as the spacing between adjacent self-priming cavities.

2. The self-priming die for punching VHB double-sided tape according to claim 1, characterized in that, The width of the self-priming cavity is 4-6 mm larger than the thickness of the blade.

3. A self-priming die for punching VHB double-sided tape according to claim 1, characterized in that, The self-priming cavity assembly is provided in one or more sets; When there are two or more sets of self-priming cavity assemblies, the self-priming cavity assemblies are arranged vertically in parallel intervals.

4. A self-priming die for punching VHB double-sided tape according to claim 3, characterized in that, The blade edge assembly is provided in one or more sets; When there are two or more sets of blade edge assemblies, the blade edge assemblies are arranged at vertical parallel intervals.

5. The application of a self-absorbing die for cutting VHB double-sided tape as described in any one of claims 1 to 4 in the preparation of die-cutting components.

6. A die-cutting assembly, characterized in that, It includes an upper module body and a lower module body that cooperate with each other, wherein the upper module body is provided with a self-absorbing die for punching VHB double-sided tape as described in any one of claims 1 to 4 on the side of the upper module body near the lower module body.

7. A processing method for VHB double-sided tape, characterized in that, Includes the following steps: (S1) Along the direction of material conveyor belt travel, release film and bottom protective film are respectively fed out by the first feeding component and the second feeding component; (S2) After step (S1) is completed, VHB double-sided adhesive is fed out using the third feeding component, and after post-processing, auxiliary release film is fed out using the fourth feeding component to obtain the composite structure layer. (S3) The composite structure layer obtained in step (S2) is sequentially punched and self-absorbed using the die-cutting assembly described in claim 6, and the finished product is then wound up using the winding assembly after post-processing.

8. The processing method of VHB double-sided tape according to claim 7, characterized in that, In step (S1), the first feeding component delivers the release film, which is done simultaneously with the second feeding component delivering the bottom protective film.

9. A processing method for VHB double-sided tape according to claim 7, characterized in that, In step (S2), the post-processing involves using the first receiving component to collect and discharge the self-contained film of the VHB double-sided adhesive. The composite structure layers, from top to bottom, consist of auxiliary release film, VHB double-sided adhesive, release film, and bottom protective film.

10. A processing method for VHB double-sided tape according to claim 7, characterized in that, In step (S3), during the punching process, the composite structure layer is punched using a cutting edge; During the self-priming process, the self-priming chamber removes the waste material along the width direction generated after the cutting process.

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