Die cutting device and die cutting method for preventing double faced adhesive tape die cutting piece from arching

Abstract

The invention relates to a die cutting device and a die cutting method for preventing a double-faced adhesive tape die cutting piece from arching. The die cutting device comprises a rack, and the rack is provided with a release film discharging roller, a double-faced adhesive tape collecting roller, a double-faced adhesive tape discharging roller and a cover film discharging roller in the conveying direction of a material belt; the workbench is arranged in the middle of the rack, and a plurality of laminating mechanisms are arranged on the table top of the workbench in the material belt conveying direction; and the material belt position sensor is arranged below the discharging side of the material belt and is used for detecting the sagging distance of the material belt. Compared with the prior art, the release film, the double-faced adhesive tape with the double-faced collagen paper removed in advance and the cover film are attached, and in the attaching process, it is ensured that the pressing roller of the last attaching mechanism firstly presses the cover film in the conveying direction of the material belt, and the double-faced adhesive tape with the double-faced collagen paper removed in advance is in a powerless state; therefore, arching of the double-sided adhesive tape caused by raw material problems is solved, the similarity is zero, and product defects are reduced; the problem of arching of the double-sided adhesive tape caused by raw material problems is solved, the similarity is zero, and the original cost of the product is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of die-cutting, and in particular to a device and a die-cutting method for preventing double-sided adhesive die-cut pieces from arching. Background Art

[0002] Double-sided tape is a roll-shaped adhesive tape made of paper, cloth, or plastic film as the base material, and then elastomeric pressure-sensitive adhesive or resin-based pressure-sensitive adhesive is evenly coated on the above base material. It is composed of three parts: base material, adhesive, and release paper (film). According to the adhesive properties, it can be divided into solvent-based adhesive tape (oily double-sided adhesive tape), emulsion-based adhesive tape (water-based double-sided adhesive tape), hot-melt adhesive tape, calendered adhesive tape, and reactive adhesive tape. It has the characteristics of high temperature resistance, solvent resistance, aging resistance, good adhesion, etc., and its performance is stable and reliable.

[0003] During the production process of double-sided tape, release film (paper) is used for winding. If the winding force is too large or too small, force will enter the double-sided tape, causing the double-sided tape to bulge during use. In addition, if the covering paper (release paper) is affected by weather or environmental factors and becomes damp, it will also cause the double-sided tape to bulge.

[0004] Some double-sided tapes are used to fix the workpieces on electronic products, while others are used to stick them together. Some workpieces are relatively thin. Once the double-sided tape is arched, it will affect the workpieces, causing the workpieces to arch or a gap between two related workpieces to separate.

[0005] The common methods for solving the arching of double-sided adhesive tape in the prior art are:

[0006] 1: Baking the product or the double-sided adhesive material will solve the problem of arching in one part, but will make the other part more arched. In addition, after baking, the double-sided adhesive will overflow, resulting in the size not being correct.

[0007] 2: Re-stick the double-sided tape and release the tension. If the double-sided tape is covered with a release film, it can solve the problem of arching, but if the double-sided tape is covered with a release paper, it cannot solve the problem. Summary of the invention

[0008] The purpose of the present invention is to overcome at least one of the defects of the above-mentioned prior art and to provide a die-cutting device and a die-cutting method for preventing double-sided adhesive die-cut parts from arching.

[0009] The purpose of the present invention can be achieved by the following technical solutions:

[0010] One of the purposes of the present invention is to provide a die-cutting device for preventing double-sided adhesive die-cut parts from arching, comprising:

[0011] The frame is provided with a release film feeding roller, a double-sided adhesive receiving roller, a double-sided adhesive feeding roller, and a cover film feeding roller along the conveying direction of the material belt;

[0012] A workbench is arranged in the middle of the frame, and a plurality of laminating mechanisms are arranged on the workbench surface along the conveying direction of the material belt;

[0013] The material belt position sensor is located under the material belt discharge side and is used to detect the sagging distance of the material belt.

[0014] Furthermore, the laminating mechanism comprises a pressing roller and a driving roller which are arranged in parallel one above the other, and a variable frequency motor which is transmission-connected to the driving roller, and the variable frequency motor is electrically connected to a material belt position sensor.

[0015] Furthermore, the die-cutting device includes a plurality of material strip position sensors arranged sequentially from top to bottom.

[0016] Furthermore, a sensor bracket is provided on the frame, and a plurality of material belt position sensors are sequentially arranged on the sensor bracket.

[0017] Furthermore, the material strip position sensor is a color mark sensor.

[0018] Furthermore, a stripping knife is provided on the workbench.

[0019] Furthermore, a lifting footrest is provided at the bottom of the frame to ensure the stability of the frame.

[0020] Furthermore, universal wheels are provided at the bottom of the frame to facilitate the movement of the frame.

[0021] Furthermore, a plurality of spare rollers are provided on the frame.

[0022] The second object of the present invention is to provide a die-cutting method to avoid the arching of double-sided adhesive die-cut parts, which adopts the die-cutting device as described above and includes the following steps:

[0023] The release film, the double-sided adhesive tape from which the double-sided adhesive base paper has been removed in advance, and the cover film are laminated to obtain a double-sided adhesive die-cut part without bulging;

[0024] Among them, along the conveying direction of the material belt, the pressing roller of the last laminating mechanism presses the cover film first, and the double-sided adhesive of the double-sided adhesive base paper removed in advance is in a powerless state.

[0025] Compared with the prior art, the present invention laminates the release film, the double-sided adhesive tape with the double-sided adhesive base paper removed in advance, and the cover film, and ensures that during the laminating process, the pressing roller of the last laminating mechanism presses the cover film first along the material belt transportation direction, and the double-sided adhesive tape with the double-sided adhesive base paper removed in advance is in a powerless state, thereby solving the problem of arching of the double-sided adhesive tape caused by raw material problems, with a total degree of zero, and reducing product defects; solving the problem of arching of the double-sided adhesive tape caused by raw material problems, with a total degree of zero, and reducing the original cost of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A die-cutting device for preventing double-sided adhesive die-cut parts from arching in an embodiment;

[0027] The numbers in the figure are as follows: 1-frame; 2-workbench; 3-release film unloading roller; 4-double-sided tape receiving roller; 5-double-sided tape unloading roller; 6-cover film unloading roller; 7-pressing roller; 8-active roller; 9-material belt position sensor; 10-sensor bracket; 11-lifting foot; 12-universal wheel; 13-spare roller; 14-peeling knife. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0029] Example

[0030] See Figure 1 , a die-cutting device for preventing double-sided adhesive die-cut parts from arching, comprising:

[0031] The frame 1 is provided with a release film feeding roller 3, a double-sided adhesive receiving roller 4, a double-sided adhesive feeding roller 5, and a cover film feeding roller 6 along the conveying direction of the material belt;

[0032] A workbench 2 is arranged in the middle of the frame 1, and a plurality of laminating mechanisms are arranged on the workbench 2 along the conveying direction of the material belt;

[0033] The material belt position sensor 9 is arranged below the material belt discharge side and is used to detect the sagging distance of the material belt.

[0034] In this embodiment, the laminating mechanism comprises a pressing roller 7 and a driving roller 8 which are arranged in parallel one above the other, and a variable frequency motor which is transmission-connected to the driving roller 8 , and the variable frequency motor is electrically connected to a material belt position sensor 9 .

[0035] Please see Figure 1 The die-cutting device includes a plurality of material strip position sensors 9 arranged sequentially from top to bottom. A sensor bracket 10 is arranged on the frame 1, and a plurality of material strip position sensors 9 are sequentially arranged on the sensor bracket 10. The material strip position sensor 9 is a color mark sensor.

[0036] Please see Figure 1 The workbench 2 is provided with a stripping knife 14. The bottom of the frame 1 is provided with a lifting foot 11. The bottom of the frame 1 is provided with a universal wheel 12. The frame 1 is also provided with a plurality of spare rollers 13.

[0037] This embodiment also provides a die-cutting method for preventing double-sided adhesive die-cut pieces from arching, which uses the die-cutting device as described above and includes the following steps:

[0038] The release film, the double-sided adhesive tape from which the double-sided adhesive base paper has been removed in advance, and the cover film are laminated to obtain a double-sided adhesive die-cut part without bulging;

[0039] Among them, along the conveying direction of the material belt, the pressing roller of the last laminating mechanism presses the cover film first, and the double-sided adhesive of the double-sided adhesive base paper removed in advance is in a powerless state.

[0040] In the prior art, the release film and the double-sided tape with double-sided tape base paper are first laminated, and then the double-sided tape base paper is removed, and then the cover film is laminated. In this laminating process, if the force of the rewinding is too large or too small, it will cause force to enter the double-sided tape, causing the double-sided tape to bulge during use. However, through the die-cutting method provided in this embodiment, the base paper of the double-sided tape is torn off as soon as it comes out, and the double-sided tape is laminated with the cover film in a bare state. The last roller must first press the cover film, and cannot press the double-sided tape, to ensure that the double-sided tape is laminated without force, which can effectively avoid the bulging of the double-sided tape.

[0041] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. A die-cutting device for preventing double-sided adhesive die-cut parts from arching. It is characterized in that include: A frame (1), wherein the frame (1) is provided with a release film feeding roller (3), a double-sided adhesive receiving roller (4), a double-sided adhesive feeding roller (5), and a cover film feeding roller (6) along a conveying direction; A workbench (2) is arranged in the middle of the frame (1), and a plurality of laminating mechanisms are arranged on the surface of the workbench (2) along the conveying direction of the material belt; The material belt position sensor (9) is arranged below the material belt discharge side and is used to detect the sagging distance of the material belt.

2. A die-cutting device for preventing double-sided adhesive die-cut parts from bulging according to claim 1, It is characterized in that The laminating mechanism comprises a pressing roller (7) and a driving roller (8) which are arranged in parallel one above the other, and a variable frequency motor which is transmission-connected to the driving roller (8), and the variable frequency motor is electrically connected to a material belt position sensor (9).

3. A die-cutting device for preventing double-sided adhesive die-cut parts from bulging according to claim 1, It is characterized in that The die-cutting device comprises a plurality of material strip position sensors (9) which are arranged in sequence from top to bottom.

4. A die-cutting device for preventing double-sided adhesive die-cut parts from bulging according to claim 3, It is characterized in that A sensor bracket (10) is provided on the frame (1), and a plurality of material belt position sensors (9) are sequentially arranged on the sensor bracket (10).

5. A die-cutting device for preventing double-sided adhesive die-cut parts from bulging according to claim 1, It is characterized in that The material strip position sensor (9) is a color mark sensor.

6. A die-cutting device for preventing double-sided adhesive die-cut parts from bulging according to claim 1, It is characterized in that The workbench (2) is provided with a stripping knife (14).

7. A die-cutting device for preventing double-sided adhesive die-cut parts from bulging according to claim 1, It is characterized in that A lifting footrest (11) is provided at the bottom of the frame (1).

8. A die-cutting device for preventing double-sided adhesive die-cut parts from bulging according to claim 1, It is characterized in that The bottom of the frame (1) is provided with a universal wheel (12).

9. A die-cutting device for preventing double-sided adhesive die-cut parts from bulging according to claim 1, It is characterized in that The frame (1) is also provided with a plurality of spare rollers (13).

10. A die-cutting method to avoid the arching of double-sided adhesive die-cut parts. It is characterized in that The die-cutting device according to any one of claims 1 to 9 is used, comprising the following steps: The release film, the double-sided adhesive tape from which the double-sided adhesive base paper has been removed in advance, and the cover film are laminated to obtain a double-sided adhesive die-cut part without bulging; Among them, along the conveying direction of the material belt, the pressing roller of the last laminating mechanism presses the cover film first, and the double-sided adhesive of the double-sided adhesive base paper removed in advance is in a powerless state.

Images