Semi-cutting processing method

Abstract

The invention discloses a half-cutting processing method, which enables integral waste discharge of a wrapping film and a release film after die cutting, reduces the cost of raw materials, ensures excellent surface quality of a subsequent heavy film and the release film, and enables a formed product to be stripped quickly and conveniently. In the process of punching the wrapping film release film and the PET base material double-faced adhesive tape from top to bottom, only the PET base material double-faced adhesive tape is squeezed to be broken, the blade point area corresponding to the wrapping film release film is still connected with the outer frame of the wrapping film release film, and no blade mark exists on the upper surface of the heavy film release film. The forming product of the PET base material double-faced adhesive tape is independently arranged on the upper surface of the heavy film release film, then the wrapping film release film is used for integrally discharging waste, the non-forming product area of the PET base material double-faced adhesive tape is used for discharging waste together, only the forming product of the PET base material double-faced adhesive tape is left on the upper surface of the heavy film release film, and then the light film release film covers the upper surface of the forming product. And then rolling is carried out.

Description

Technical Field

[0001] The invention relates to the technical field of die cutting, in particular to a half-cutting method. Background Art

[0002] The heavy film release film is compounded with the PET substrate double-sided adhesive and the wrapping film release film, and then the non-release surface of the wrapping film is punched by a punching tool, so that the PET substrate double-sided adhesive is formed according to the set shape, and the bottom is adhered to the heavy film release film, and then the waste double-sided adhesive and the waste outer frame of the wrapping film release film are discarded, so that the PET substrate double-sided adhesive (product) of the set shape and the wrapping film release film of the corresponding shape are left alone on the upper surface of the heavy film release film, and then the wrapping film release film on the upper surface of the waste product is discarded by a silicone tape, and then the light film release film is compounded and rolled up, which has the following defects:

[0003] 1. Because the release film of the wrapping film has adsorption, when the waste material on the waste product is discharged with silicone tape, it is easy for the waste wrapping film to be glued, resulting in the lack of glue on the material tape.

[0004] 2. When the punching knife mark is too deep, it is easy for the double-sided adhesive to overflow into the knife mark of the heavy film release film, making it difficult to peel off the molded product and the heavy film release film. Summary of the invention

[0005] In view of the above problems, the present invention provides a half-cutting processing method, which allows the wrapping film release film to be discharged as a whole after die-cutting, reduces the cost of raw materials, and ensures that the surface quality of the subsequent heavy film release film is excellent, making it quick and convenient to peel off the molded product.

[0006] A half-cutting processing method, characterized in that: in the process of punching a wrapping film release film and a PET substrate double-sided adhesive from top to bottom, the blade of the punching knife only squeezes out the PET substrate double-sided adhesive, while the blade area corresponding to the wrapping film release film is still connected to the outer frame of the wrapping film release film, and there is no knife mark on the upper surface of the heavy film release film, so that the molded product of the PET substrate double-sided adhesive is independently arranged on the upper surface of the heavy film release film, and then the wrapping film release film is discharged as a whole, and the non-molded product area of ​​the PET substrate double-sided adhesive is discharged together, and only the molded product of the PET substrate double-sided adhesive is left on the upper surface of the heavy film release film, and then the upper surface of the molded product is covered with a light film release film, and then rolled up.

[0007] It is further characterized by:

[0008] The transparent release film originally covering the upper surface of the PET substrate double-sided adhesive tape is rolled up, and then the upper surface of the PET substrate double-sided adhesive tape is covered with a wrapping film release film;

[0009] The softness of the wrapping film release film is higher than that of the PET-based double-sided adhesive;

[0010] By reducing the downward punching pressure of the punching knife, the wrapping film release film and the blade area of ​​the punching knife are deformed downward, and finally the PET substrate double-sided adhesive located at the lower layer of the wrapping film release film is squeezed and cut along the shape of each set of blades punched to form an independent molded product;

[0011] The limit position of the downward movement of the blade of the punching knife is higher than the upper surface of the heavy film release film, so that the upper surface of the heavy film release film will not be in hard contact with the blade, ensuring that there is no knife mark on the upper surface of the heavy film release film;

[0012] The width of the wrapping film release film only needs to cover the area of ​​the formed product formed by punching, thereby reducing the cost of raw materials;

[0013] The lower part of the knife seat of the punching knife is provided with several rows of blade areas, each row of blade areas is provided with several spaced cylindrical blades, the bottom of each cylindrical blade is a blunt blade with closed ends from top to bottom, and the bottom arc of the blunt blade ensures that the release film of the wrapping film will not be directly punched and cut off;

[0014] The light film release film subsequently covered only needs to cover the width area of ​​the molded product, thereby reducing the cost of raw materials;

[0015] Preferably, after the wrapping film release film covers the upper surface of the PET-based double-sided adhesive, the two sides of the entire double-sided adhesive are first punched with side positioning holes through a hardware mold, and then the punching knife is aligned with the side positioning holes through the corresponding rod to complete the corresponding punching of the molded product, which ensures that the punching is accurate and reliable.

[0016] After adopting the above technical scheme, the blade of the punching knife only squeezes out the PET substrate double-sided adhesive during the process of punching the wrapping film release film and the PET substrate double-sided adhesive from top to bottom, while the blade area corresponding to the wrapping film release film is still connected to the outer frame of the wrapping film release film, and there is no knife mark on the upper surface of the heavy film release film. Since the upper wrapping film release film is not broken and the PET substrate double-sided adhesive is squeezed out, when discharging the waste PET substrate double-sided adhesive frame and wrapping film waste, the wrapping film release film and double-sided adhesive outer frame waste adhesive on the product can be directly taken away, and then the light film release film can be directly compounded to complete it; it reduces the cost of raw materials and ensures that the surface quality of the subsequent heavy film release film is excellent, making the molded product quick and convenient to peel off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded diagram of a rolled product corresponding to a specific embodiment of the present invention;

[0018] Figure 2 It is a cross-sectional view of the half-cut punching principle of the present invention;

[0019] The names corresponding to the serial numbers in the figure are as follows:

[0020] Punching knife 10, blade 11, blunt blade 12, bottom arc 121;

[0021] Wrapping film release film 1, PET substrate double-sided adhesive 2, molded product 21, non-molded product area 22, heavy film release film 3, light film release film 4,. DETAILED DESCRIPTION

[0022] A half-cutting method, see Figure 1-Figure 2 : When the blade 11 of the punching knife 10 punches the wrapping film release film 1 and the PET substrate double-sided adhesive 2 from top to bottom, only the PET substrate double-sided adhesive 2 is squeezed out, and the blade area corresponding to the wrapping film release film 1 is still connected to the outer frame of the wrapping film release film 1, and there is no knife mark on the upper surface of the heavy film release film 3, so that the molded product 21 of the PET substrate double-sided adhesive 2 is independently arranged on the upper surface of the heavy film release film 3, and then the wrapping film release film 1 is discharged as a whole, and the non-molded product area 22 of the PET substrate double-sided adhesive 2 is discharged together, and only the molded product 21 of the PET substrate double-sided adhesive 2 is left on the upper surface of the heavy film release film 3, and then the light film release film 4 is covered on the upper surface of the molded product, and then it can be rolled up.

[0023] In the specific implementation, the molded product 21 is a circular rubber pad structure, and two groups of molded products 21 are arranged along the width direction on each group of double-sided adhesive products. The width of the double-sided adhesive product is 50 mm, which includes the following steps:

[0024] S1. Roll up the transparent release film covering the upper surface of the PET substrate double-sided adhesive 2 of the double-sided adhesive product, and then cover the upper surface of the PET substrate double-sided adhesive 2 with a wrapping film release film, wherein the wrapping film release film is located in the width center area of ​​the PET substrate double-sided adhesive 2, and the width of the wrapping film release film is 30 mm;

[0025] S2, first punch the side positioning holes on both sides of the entire double-sided adhesive tape through a hardware mold, and then the punching knife is aligned with the side positioning holes through the corresponding rod to complete the corresponding punching of the molded product. In the process of punching the wrapping film release film 1 and the PET substrate double-sided adhesive tape 2 from top to bottom, the blade 11 of the punching knife 10 only squeezes the PET substrate double-sided adhesive tape 2, and the blade area corresponding to the wrapping film release film 1 is still connected to the outer frame of the wrapping film release film 1, and there is no knife mark on the upper surface of the heavy film release film 3, so that the molded product 21 of the PET substrate double-sided adhesive tape 2 is independently arranged on the upper surface of the heavy film release film 3;

[0026] In a specific implementation, the lower part of the knife seat of the punching knife is provided with several rows of blade areas, each row of blade areas is provided with several spaced cylindrical blades, and the bottom of each cylindrical blade is a blunt blade 12 with closed ends from top to bottom, and the bottom arc 121 of the blunt blade 12 ensures that the wrapping film release film punch 1 will not be directly cut off;

[0027] S3, the wrapping film release film 1 is discharged as a whole, and the non-molded product area (i.e., the outer frame) of the PET substrate double-sided adhesive 2 is discharged together;

[0028] S4. Cover the upper surface of the molded product 21 with a light film release film 4 and then roll it up. The width of the light film release film 4 is 28 mm.

[0029] In a specific implementation, the softness of the wrapping film release film is higher than that of the PET substrate double-sided adhesive tape. By reducing the downward punching pressure of the punching knife, the wrapping film release film and the blade area of ​​the punching knife are deformed downward, and finally the PET substrate double-sided adhesive tape located at the lower layer of the wrapping film release film is squeezed and cut along the shape of each set of blades punched to form an independent molded product.

[0030] The limit position of the downward movement of the cutting blade of the punching knife is higher than the upper surface of the heavy film release film, so that the upper surface of the heavy film release film will not be in hard contact with the blade, ensuring that there is no knife mark on the upper surface of the heavy film release film;

[0031] The width of the wrapping film release film only needs to cover the area of ​​the formed product formed by punching, which reduces the cost of raw materials;

[0032] The subsequent light film release film only needs to cover the width area of ​​the molded product, thereby reducing the cost of raw materials.

[0033] Its working principle is as follows: in the process of punching the wrapping film release film and the PET substrate double-sided adhesive from top to bottom, the blade of the punching knife only squeezes and cuts the PET substrate double-sided adhesive, while the blade area corresponding to the wrapping film release film is still connected to the outer frame of the wrapping film release film, and there is no knife mark on the upper surface of the heavy film release film. Since the upper wrapping film release film is not cut and the PET substrate double-sided adhesive is squeezed and cut, when discharging the waste PET substrate double-sided adhesive outer frame and wrapping film waste, the wrapping film release film and double-sided adhesive outer frame waste adhesive on the product can be directly taken away, and then the light film release film can be directly compounded to complete it; it reduces the cost of raw materials, and ensures the excellent surface quality of the subsequent heavy film release film, making it quick and convenient to peel off the molded product.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A half-cutting method, characterized in that: When the blade of the punching knife punches the wrapping film release film and the PET substrate double-sided adhesive from top to bottom, only the PET substrate double-sided adhesive is squeezed out, and the blade area corresponding to the wrapping film release film is still connected to the outer frame of the wrapping film release film. There is no knife mark on the upper surface of the heavy film release film, so that the molded products of the PET substrate double-sided adhesive are independently arranged on the upper surface of the heavy film release film. After that, the wrapping film release film is discharged as a whole, and the non-molded product area of ​​the PET substrate double-sided adhesive is discharged together, leaving only the molded products of the PET substrate double-sided adhesive on the upper surface of the heavy film release film, and then the light film release film is covered on the upper surface of the molded product, and then the film is rolled up.

2. A half-cutting method according to claim 1, characterized in that: The transparent release film originally covering the upper surface of the PET substrate double-sided adhesive tape is rolled up, and then the upper surface of the PET substrate double-sided adhesive tape is covered with a wrapping film release film.

3. A half-cutting method according to claim 1, characterized in that: The softness of the wrapping film release film is higher than that of the PET-based double-sided adhesive.

4. A half-cutting method according to claim 3, characterized in that: By reducing the downward punching pressure of the punching knife, the wrapping film release film and the blade area of ​​the punching knife are deformed downward, and finally the PET base double-sided adhesive located at the lower layer of the wrapping film release film is squeezed and cut along the shape of each set of blades to form an independent molded product.

5. A half-cutting method according to claim 1, characterized in that: The limit position of the downward movement of the blade of the punching knife is higher than the upper surface of the heavy film release film.

6. A half-cutting method according to claim 1, characterized in that: The width of the wrapping film release film covers the area of ​​the formed product formed by punching.

7. A half-cutting method according to claim 1, characterized in that: The lower part of the knife seat of the punching knife is provided with several rows of blade areas, each row of blade areas is provided with several spaced cylindrical blades, and the bottom of each cylindrical blade is a blunt blade with closed ends from top to bottom.

8. A half-cutting method according to claim 1, characterized in that: The light film release film subsequently covered covers the width area of ​​the molded product.

9. A half-cutting method according to claim 1, characterized in that: After the wrapping film release film covers the upper surface of the PET substrate double-sided adhesive, the two sides of the entire double-sided adhesive are first punched with side positioning holes through a hardware mold, and then the punching knife is aligned with the side positioning holes through the corresponding rod to complete the corresponding punching of the molded product.

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