Thick VHB glue product with handle and processing method thereof

Abstract

The invention relates to a thick VHB glue product with a handle and a processing method of the thick VHB glue product. The processing method comprises the following specific steps: S1, laminating a first-stage material belt; s2, primary punching die cutting waste discharge is conducted, specifically, primary punching die cutting is conducted on the primary material belt in a primary punching die cutting machine, a lower punching cutter line and an inverted-U-shaped punching cutter line matched with a primary punching die cutting pattern are arranged on the primary punching die cutting machine, primary punching waste is discharged, an auxiliary material release film is attached, and a secondary material belt is formed; s3, secondary punching die cutting and waste discharging are conducted, specifically, secondary punching die cutting is conducted on the second-stage material belt on a secondary punching die cutting machine, an open type punching cutter line matched with the secondary punching die cutting pattern is arranged on the secondary punching die cutting machine, secondary punching waste is discharged, and a third-stage material belt is formed; and S4, the die cutting piece product is attached and rolled. Compared with the prior art, waste discharging and repasting can be directly achieved on the die-cutting laminating machine, manual intervention is not needed, the productivity and the yield are improved, and therefore the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of die-cutting, in particular to a thick VHB glue product with a handle and a processing method thereof. Background Art

[0002] In order to further improve product performance and expand application areas, researchers have conducted extensive and in-depth research on acrylic pressure-sensitive adhesive technology since the 1940s and achieved a series of significant results. TM The tape is undoubtedly the most significant one in this series of achievements. Its birth has largely changed the previous belief that pressure-sensitive adhesives cannot be used in complex stress-bearing structures and cannot work reliably for a long time under outdoor conditions, bringing the development of pressure-sensitive adhesive technology to a new height. TM The earliest tape products were the transfer film series, which was officially launched in 1974, and the foam type VHB, which was launched in 1979. TM The tape further improves the load-bearing capacity and fatigue resistance, making it successfully used in many demanding fields. TM The tape has formed a complete product series, with hundreds of products of different thicknesses and properties, which can meet the needs of use under various usage and construction conditions.

[0003] VHB adhesive is an acrylic foam tape with strong viscosity and various thicknesses. The thicker the adhesive, the greater the viscosity. In the die-cutting industry, when punching and processing products, it is often difficult to discharge the waste after punching and re-adhesion.

[0004] The following VHB product structure with handles is as follows Figure 1 and Figure 2 As shown, the thickness of VHB glue is 1.1MM.

[0005] See also Figures 3 to 5 Since the waste is strip-shaped after punching, it is very simple to discharge the waste, just discharge the waste area directly;

[0006] See also Figures 6 to 8 , because the second punch line is frame-shaped, the outer contour needs to be removed after punching. During the punching process, since the VHB glue sticks back very quickly, it is necessary to spray a release agent or soapy water while punching to prevent the VHB glue from sticking back, which makes it difficult to remove the outer contour. In addition, the auxiliary material release film attached to the VHB glue is also punched into a closed frame shape as shown in the above figure. Due to the spraying of release agent or soapy water, the auxiliary material release film is very smooth or wet and not separated. It is difficult to arrange the auxiliary material release film when attaching the sealing tape. It is necessary to manually remove the auxiliary material release film above, and then transfer the product to the carrier film. Summary of the invention

[0007] The purpose of the present invention is to overcome the problem in the prior art that during the second flushing, the machine cannot discharge the waste, and manual waste discharge and transfer are required, resulting in high labor costs, thereby providing a thick VHB glue product with a handle and a processing method thereof.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] A processing method for a thick VHB rubber product with a handle, the specific steps are as follows:

[0010] S1. Lamination of primary material strip: Lay the handle release film on the top of the bottom protective film, and laminate the VHB double-sided tape on the top of the handle release film to form a primary material strip;

[0011] S2, one-punch die cutting and waste discharge: the primary material strip is subjected to one-punch die cutting in a one-punch die cutting machine, the one-punch die cutting machine is provided with a lower punch cutting knife line and an inverted U-shaped punch cutting knife line matching the one-punch die cutting pattern, and the one-punch waste is discharged, and then the auxiliary material release film is attached to form a secondary material strip;

[0012] S3, secondary die-cutting and waste discharge: the secondary material strip is subjected to secondary die-cutting in a secondary die-cutting machine, the secondary die-cutting machine is provided with an open die-cutting knife line matching the secondary die-cutting pattern, and the secondary waste is discharged to form a tertiary material strip, the tertiary material strip comprising a VHB double-sided adhesive tape and a handle release film;

[0013] S4. Die-cut product lamination and rolling: discharge the bottom protective film and auxiliary material release film, and stick the VHB double-sided tape on the handle release film to form a die-cut product, that is, a thick VHB adhesive product with a handle, and roll it up.

[0014] Furthermore, in step S1, a VHB double-sided adhesive film is provided on the VHB double-sided adhesive.

[0015] Furthermore, in step S2, the punching layers of the lower punching knife line include VHB double-sided adhesive film and VHB double-sided adhesive from top to bottom, wherein the die-cut VHB double-sided adhesive film is a punching waste.

[0016] Furthermore, in step S2, the cutting layers of the inverted U-shaped cutting line include, from top to bottom, the VHB double-sided adhesive film, the VHB double-sided adhesive and the handle release film, wherein the die-cut VHB double-sided adhesive film and the VHB double-sided adhesive are waste materials.

[0017] Furthermore, in step S2, when a flush of waste is discharged, the waste is discharged from right to left.

[0018] Furthermore, in step S3, the punching layers of the open punching knife line include, from top to bottom, an auxiliary material release film, a VHB double-sided adhesive tape and a handle release film.

[0019] Furthermore, in step S3, the secondary punching waste includes unsealed frame waste after die-cutting.

[0020] In addition, the present invention also provides a thick VHB adhesive product with a handle, and the thick VHB adhesive product comprises a VHB double-sided adhesive and a handle release film in sequence.

[0021] Furthermore, the shape of the handle release film consists of two rectangles, the length and width of rectangle A are smaller than the length and width of rectangle B, and the shape of the VHB double-sided adhesive is rectangle C, the length and width of rectangle C are equal to the length and width of rectangle B.

[0022] Furthermore, the thickness of the VHB double-sided adhesive is 1.1 mm.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. The processing method of the thick VHB adhesive product provided by the present invention can directly realize waste discharge and transfer on the die-cutting laminating machine without manual intervention, thereby improving production capacity and yield, and reducing costs.

[0025] 2. When the waste is discharged in one punch, since the incision of the inverted U-shaped punching line is located in the X direction, the waste is discharged from right to left, so it does not affect the process waste discharge.

[0026] 3. When discharging waste by the second flushing, since the opening of the frame produced by the second flushing is not closed, the auxiliary material release film can be directly pulled up when discharging it, and there is no need to use tape to discharge it. Even if the auxiliary material release film is sprayed with release agent or soapy water, it will not affect the waste discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the VHB glue product;

[0028] Figure 2 It is a schematic diagram of the composition structure of VHB glue products;

[0029] Figure 3 It is a schematic diagram of the knife die in the first step of punching in the prior art;

[0030] Figure 4 It is a schematic diagram of the structure of the first step of punching in the prior art;

[0031] Figure 5 It is a schematic diagram of the structure of the first step of continuous punching in the prior art, wherein the shaded area is the reserved area during the punching process;

[0032] Figure 6 It is a schematic diagram of the knife die in the second step of punching in the prior art;

[0033] Figure 7 It is a schematic diagram of the structure during the second step of punching in the prior art;

[0034] Figure 8 It is a structural schematic diagram of the second step of continuous punching in the prior art;

[0035] Fig. 9 This is a schematic diagram of the cutting die during the first step of punching in the present invention;

[0036] Fig.10 This is a schematic diagram of the structure during the first step of punching in the present invention;

[0037] Fig.11 It is a schematic diagram of the structure of the first step of continuous punching in the present invention, wherein the shaded area is the reserved area during the punching process;

[0038] Fig.12 It is a schematic diagram of the cutting die during the second step of punching in the present invention;

[0039] Fig.13 It is a schematic diagram of the structure during the second step of punching in the present invention;

[0040] Fig.14 It is a schematic diagram of the structure during the second step of continuous punching in the present invention.

[0041] Explanation of the figure numbers: 1. VHB double-sided adhesive tape, 2. Handle release film, 3. VHB double-sided adhesive tape with film, 4. Bottom protective film, 5. Auxiliary material release film, 6. Lower punching line, 7. Closed punching line, 8. Inverted U-shaped punching line, 9. Open punching line. DETAILED DESCRIPTION

[0042] 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.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0047] Example

[0048] See also Figures 9 to 14 This embodiment provides a processing method for a thick VHB adhesive product with a handle, and the specific steps are as follows:

[0049] S1. Lamination of the primary material strip: Lay the handle release film 2 on the bottom protective film 4, and laminat the VHB double-sided tape 1 on the handle release film 2 to form a primary material strip;

[0050] S2, one-punch die cutting and waste discharge: the primary material strip is subjected to one-punch die cutting in a one-punch die cutting machine, the one-punch die cutting machine is provided with a lower punch cutting knife line 6 and an inverted U-shaped punch cutting knife line 8 matching the one-punch die cutting pattern, and the one-punch waste is discharged, and then the auxiliary material release film 5 is attached to form a secondary material strip;

[0051] S3, secondary die-cutting and waste discharge: the secondary material strip is subjected to secondary die-cutting in a secondary die-cutting machine, the secondary die-cutting machine is provided with an open-type die-cutting knife line 9 matching the secondary die-cutting pattern, and the secondary waste is discharged to form a tertiary material strip, the tertiary material strip comprising a VHB double-sided adhesive tape 1 and a handle release film 2;

[0052] S4, die-cut product lamination and rolling: the bottom protective film 4 and the auxiliary material release film 5 are discharged, and the VHB double-sided adhesive tape 1 is laminated on the handle release film 2 to form a die-cut product, that is, a thick VHB adhesive product with a handle, and then rolled up.

[0053] In this embodiment, in step S1 , a VHB double-sided adhesive film 3 is provided on the VHB double-sided adhesive tape 1 .

[0054] In this embodiment, in step S2, the punching layers of the lower punching knife line 6 include VHB double-sided adhesive film 3 and VHB double-sided adhesive 1 from top to bottom, wherein the die-cut VHB double-sided adhesive film 3 is a punching waste.

[0055] In this embodiment, in step S2, the punching layers of the inverted U-shaped punching knife line 8 include the VHB double-sided adhesive film 3, the VHB double-sided adhesive 1 and the handle release film 2 from top to bottom, wherein the die-cut VHB double-sided adhesive film 3 and the VHB double-sided adhesive 1 are a punching waste.

[0056] In this embodiment, in step S2, a flush of waste is discharged from right to left.

[0057] In this embodiment, in step S3, the punching layers of the open punching knife line 9 include, from top to bottom, the auxiliary material release film 5, the VHB double-sided adhesive tape 1 and the handle release film 2.

[0058] In this embodiment, in step S3, the secondary punching waste includes unsealed frame waste after die-cutting.

[0059] See also Figure 1 and Figure 2 This embodiment also provides a thick VHB adhesive product with a handle, and the thick VHB adhesive product comprises a VHB double-sided adhesive 1 and a handle release film 2 in sequence.

[0060] In this embodiment, the shape of the handle release film 2 consists of two rectangles, the length and width of rectangle A are smaller than the length and width of rectangle B, and the shape of the VHB double-sided adhesive 1 is rectangle C, the length and width of rectangle C are equal to the length and width of rectangle B.

[0061] In this embodiment, the thickness of the VHB double-sided adhesive tape 1 is 1.1 mm.

[0062] The above description of the embodiments is to facilitate the understanding and use of the invention by those skilled in the art. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the scope of protection of the present invention.

Claims

1. A processing method for thick VHB rubber products with handles, It is characterized in that The specific steps are as follows: S1. Laminating the primary material strip: laminating the handle release film (2) on the top of the bottom protective film (4), and laminating the VHB double-sided adhesive tape (1) on the top of the handle release film (2) to form a primary material strip; S2, one-punch die cutting and waste discharge: the primary material strip is subjected to one-punch die cutting in a one-punch die cutting machine, the one-punch die cutting machine is provided with a lower punch cutting knife line (6) and an inverted U-shaped punch cutting knife line (8) matching the one-punch die cutting pattern, and the one-punch waste is discharged, and then the auxiliary material release film (5) is attached to form a secondary material strip; S3, secondary die-cutting and waste discharge: the secondary material strip is subjected to secondary die-cutting in a secondary die-cutting machine, wherein the secondary die-cutting machine is provided with an open die-cutting knife line (9) matching the secondary die-cutting pattern, and the secondary die-cutting waste is discharged to form a tertiary material strip, wherein the tertiary material strip comprises a VHB double-sided adhesive tape (1) and a handle release film (2); S4, die-cut product lamination and rolling: the bottom protective film (4) and the auxiliary material release film (5) are discharged, and the VHB double-sided adhesive tape (1) is laminated on the handle release film (2) to form a die-cut product, i.e. a thick VHB adhesive product with a handle, which is then rolled up.

2. A method for processing a thick VHB rubber product with a handle according to claim 1, It is characterized in that In step S1, a VHB double-sided adhesive film (3) is provided on the VHB double-sided adhesive (1).

3. A method for processing a thick VHB rubber product with a handle according to claim 2, It is characterized in that In step S2, the punching layers of the lower punching knife line (6) include, from top to bottom, the VHB double-sided adhesive film (3) and the VHB double-sided adhesive (1), wherein the die-cut VHB double-sided adhesive film (3) is a punching waste.

4. A method for processing a thick VHB rubber product with a handle according to claim 2, It is characterized in that In step S2, the punching layers of the inverted U-shaped punching knife line (8) include, from top to bottom, the VHB double-sided adhesive film (3), the VHB double-sided adhesive (1) and the handle release film (2), wherein the die-cut VHB double-sided adhesive film (3) and the VHB double-sided adhesive (1) are a punching waste.

5. A method for processing a thick VHB rubber product with a handle according to claim 1, It is characterized in that In step S2, when a flush of waste is discharged, the waste is discharged from right to left.

6. A method for processing a thick VHB rubber product with a handle according to claim 1, It is characterized in that In step S3, the punching layers of the open punching knife line (9) include, from top to bottom, the auxiliary material release film (5), the VHB double-sided adhesive tape (1) and the handle release film (2).

7. A method for processing a thick VHB rubber product with a handle according to claim 1, It is characterized in that In step S3, the secondary punching waste includes unsealed frame waste after die-cutting.

8. A thick VHB adhesive product with a handle made by the method as claimed in any one of claims 1 to 7, It is characterized in that The thick VHB adhesive product comprises VHB double-sided adhesive (1) and a handle release film (2) in sequence.

9. A thick VHB adhesive product with a handle according to claim 8, It is characterized in that The shape of the handle release film (2) is composed of two rectangles, the length and width of rectangle A are smaller than the length and width of rectangle B, and the shape of the VHB double-sided adhesive (1) is rectangle C, the length and width of rectangle C are equal to the length and width of rectangle B.

10. A thick VHB adhesive product with a handle according to claim 8, It is characterized in that The thickness of the VHB double-sided adhesive tape (1) is 1.1 mm.

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