An asynchronous piercing process

Abstract

The application provides an asynchronous punching process, which punches a double-sided adhesive layer into a large concentric hole and then asynchronously composites the double-sided adhesive layer on a release film layer, improves material utilization, and improves processing efficiency. The width of the roll of the double-sided adhesive layer and the blue release film covers the width of the final product, three-station cutter dies are integrated on a flat cutter, the double-sided adhesive layer is punched into a large concentric hole by the first-station cutter die of the flat cutter, the double-sided adhesive layer is asynchronized to the upper surface of the blue release film by the second-station cutter die of the flat cutter, meanwhile, the second-station cutter die cuts the double-sided adhesive strip, punches the double-sided adhesive strip and the blue release film into an overall outer contour, then the bottom film of the blue release film drives the blue release film and the double-sided adhesive strip to step under the third-station cutter die of the flat cutter, the third-station cutter die cuts off the excess part at both ends of the double-sided adhesive strip in the transverse length direction, exposes the tear-off hand of the blue release film, and simultaneously punches small concentric holes and other through holes, and then flows into the subsequent station.

Description

Technical Field

[0001] This invention relates to the technical field of die-cutting, specifically to an asynchronous punching and piercing process. Background Technology

[0002] Processing such as Figure 1 The die-cut product shown includes a double-sided adhesive layer and a blue release film layer. A light film is also provided at the bottom of the double-sided adhesive layer. Because the double-sided adhesive layer and the blue release film layer have concentric holes of different diameters, and the hole diameter of the double-sided adhesive layer is larger than that of the release film layer, the existing process involves roller cutting along the length of the material. In actual processing, a combination of equipment including one 10-station roller cutting machine, one 420QDC machine, and two laminating machines is required. The processing technology is described below. Figure 2 The material is laminated synchronously across the entire surface in the narrow direction, with a product spacing of 2mm, edge material of 3mm, and 20mm of material at the tear point, resulting in material waste. Therefore, there is an urgent need to develop a high-efficiency die-cutting process that can save materials. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides an asynchronous punching process, in which concentric large holes are punched into the double-sided adhesive layer before asynchronous lamination onto the release film layer, thereby improving material utilization and processing efficiency.

[0004] An asynchronous punching process is characterized by: selecting a roll width of double-sided adhesive layer and blue release film to cover the final product width; integrating three-station die-cutting molds onto a flat die; punching large concentric holes in the double-sided adhesive layer through the first station die of the flat die; asynchronously transferring the double-sided adhesive to the upper surface of the blue release film through the second station die of the flat die; simultaneously cutting the double-sided adhesive strip and punching out the overall outer contour of the double-sided adhesive strip and blue release film; then, the bottom film of the blue release film, along with the blue release film and double-sided adhesive strip, moves to the bottom of the third station die of the flat die; the third station die cuts off the excess portions at both ends of the double-sided adhesive strip in the horizontal length direction, exposing the tear-off area of ​​the blue release film, and simultaneously punching out small concentric holes and other through holes, before flowing into subsequent stations.

[0005] Its further feature is that it includes the following steps:

[0006] A double-sided adhesive layer is placed above the blue release film layer and conveyed to the feeding area of ​​the hardware mold behind it by conveyor rollers. The hardware mold is equipped with a flat knife, and the flat knife has three cutting dies from front to back. The first cutting die is used to punch the large concentric holes on the double-sided adhesive layer. The second cutting die is used to punch the double-sided adhesive strip away from the material roll corresponding to the double-sided adhesive layer, and at the same time, to laminate the double-sided adhesive strip onto the blue release film material roll below, and to punch out the overall outer contour of the blue release film. The third cutting die cuts off the excess part at both ends of the horizontal length of the double-sided adhesive strip, exposing the tear point of the blue release film, and at the same time punches out the small concentric holes and other through holes.

[0007] b. The first step of the double-sided adhesive layer is fed into the first die station directly below the first die station. The first die station punches down to cut the large concentric holes of the double-sided adhesive layer. Then the first step of the double-sided adhesive layer moves to the second die station directly below the die. At the same time, the process release film under the double-sided adhesive layer discharges the waste material from the production line.

[0008] c. The part of the double-sided adhesive layer with the large concentric holes removed is located above the blue release film. Then, the second die-cutting station punches downwards to cut the double-sided adhesive strip away from the material roll corresponding to the double-sided adhesive layer. At the same time, the double-sided adhesive strip is laminated onto the blue release film material roll below, and the blue release film is punched out to form the overall outer contour.

[0009] d. The bottom film of the blue release film carries the blue release film and double-sided adhesive strip to the third station of the flat knife below the die in the second step;

[0010] e. The third station die cuts off the excess parts at both ends of the double-sided adhesive strip in the horizontal length direction, exposing the tear-off part of the blue release film, and simultaneously punches out small concentric holes and other through holes, and then flows into the subsequent station.

[0011] Its further characteristic is:

[0012] The double-sided adhesive layer is narrower at the tear point of the blue release film, thus making the material utilization rate of the double-sided adhesive layer higher;

[0013] The distance of the first step is less than the distance of the second step;

[0014] The distance of the second step is 0.5mm to 1mm larger than the width of the final product;

[0015] The first station die-cutting mold only covers the corresponding area of ​​the double-sided adhesive layer and does not cover the initial position of the blue release film entering the production line;

[0016] The first step is longer than the width of the double-sided adhesive strip, which ensures that there is a margin for the non-cutting edge of the die-cutting at the second station, allowing for adjustment.

[0017] The second station die is used to cut the double-sided adhesive strip from the double-sided adhesive layer to a length greater than the width of the double-sided adhesive layer, ensuring that the double-sided adhesive strip is reliably cut off.

[0018] The roll material corresponding to the double-sided adhesive layer has a light film on the upper layer and a process release film on the lower layer.

[0019] The roll of material corresponding to the blue release film has a bottom film laminated on the lower layer;

[0020] Both the double-sided adhesive layer and the blue release film are equipped with independent pulling rollers. By controlling the speed ratio of the corresponding pulling rollers, the large concentric holes of the double-sided adhesive layer of the product are punched and asynchronously pulled to the upper surface of the blue release film. The material is then removed, laminated, and contoured by the punching of the die at the second station.

[0021] With the structure of this invention, three punching processes are integrated into one metal mold, with a total of three skip-step punching processes, which saves product spacing waste. The double-sided adhesive layer is first punched with concentric large holes and then asynchronously laminated onto the release film layer, which improves material utilization and processing efficiency. Attached Figure Description

[0022] Figure 1 This is an exploded view of the die-cut product corresponding to this invention;

[0023] Figure 2 A schematic diagram of the existing process;

[0024] Figure 3 This is a process flow diagram corresponding to the present invention;

[0025] Figure 4 This is a schematic diagram of the die-cutting mold for the flat blade of the present invention;

[0026] The structure names corresponding to the numbers in the diagram are as follows:

[0027] Double-sided adhesive layer 1, large concentric circular hole 1-1, double-sided adhesive strip 101, blue release film 2, small concentric circular hole 2-1, through circular hole 2-2, tear handle 21, bottom film 3, hardware mold 4, process release film 5, light film 6, flat knife 10, first station die 11, second station die 12, third station die 13. Detailed Implementation

[0028] An asynchronous punching process, see Figure 1 , Figure 3 , Figure 4 The width of the roll material, consisting of double-sided adhesive layer 1 and blue release film 2, covers the final product width. The three-station die-cutting mold is integrated onto a single flat die 10.

[0029] After the double-sided adhesive layer 1 is punched with a large concentric hole 1-1 by the first station die 11 of the flat knife 10, the double-sided adhesive layer 1 is asynchronously transferred to the upper surface of the blue release film 2 by the second station die 12 of the flat knife 10. At the same time, the second station die 12 cuts the double-sided adhesive strip and punches out the overall outer contour of the double-sided adhesive strip 101 and the blue release film 2. Then, the bottom film 3 of the blue release film 2 drives the blue release film 2 and the double-sided adhesive strip 101 to step under the third station die 13 of the flat knife 10. The third station die 13 cuts off the excess parts at both ends of the horizontal length of the double-sided adhesive strip 101, exposing the tear handle 21 of the blue release film 2, and punches out the small concentric hole 2-1 and other through holes 2-2 at the same time, and then flows into the subsequent station.

[0030] In practice, it includes the following steps:

[0031] A. The double-sided adhesive layer 1 is placed above the blue release film layer 2 and conveyed to the feeding area of ​​the hardware mold 4 behind it by conveying rollers. The hardware mold 4 is equipped with a flat knife 10, which has three cutting dies from front to back. The first cutting die 11 is used to punch the large concentric circular holes 1-1 on the double-sided adhesive layer 1. The second cutting die 12 is used to punch the double-sided adhesive strip 101 away from the material roll corresponding to the double-sided adhesive layer 1, and at the same time, to laminate the double-sided adhesive strip 101 onto the blue release film material roll below, and to punch out the overall outer contour of the blue release film 2. The third cutting die 13 cuts off the excess parts at both ends of the horizontal length direction of the double-sided adhesive strip 101, exposing the tear handle 21 of the blue release film 2, and at the same time punches out the small concentric circular holes 2-1 and other through circular holes 2-2.

[0032] b. The double-sided adhesive layer 1 is fed into the first die station 11 directly below the first die station 11. The first die station 11 punches down the double-sided adhesive layer 1 to cut the large concentric hole 1-1. Then the double-sided adhesive layer 1 is moved to the second die station 12 directly below the double-sided adhesive layer 1. At the same time, the process release film 5 below the double-sided adhesive layer 1 discharges the waste material from the production line.

[0033] c. The part of the double-sided adhesive layer 1 with the large concentric hole 1-1 removed is located above the blue release film 2. Then the second die station 12 punches downwards, punches the double-sided adhesive strip 101 away from the material roll corresponding to the double-sided adhesive layer 1, and at the same time, the double-sided adhesive strip 101 is bonded to the blue release film material roll below, and the blue release film 2 is punched out with the overall outer contour.

[0034] d. The bottom film 3 of the blue release film 2 drives the blue release film 2 and the double-sided adhesive strip 101 to the third station of the flat knife 10 below the die 13;

[0035] e. The third station die 13 cuts off the excess parts at both ends of the double-sided adhesive strip 101 in the horizontal length direction, exposing the tear handle 21 of the blue release film 2, and simultaneously punches out small concentric circular holes 2-1 and other through circular holes 2-2, and then flows into the subsequent station.

[0036] In practice: the distance of the first step is less than the distance of the second step; the distance of the second step is the width of the final product + 0.5mm;

[0037] The first station die 11 only covers the corresponding area of ​​the double-sided adhesive layer 1 and does not cover the initial position of the blue release film 2 entering the production line;

[0038] The first step is longer than the width of the double-sided adhesive strip 101, which ensures that there is a margin for the non-cutting edge of the die 12 at the second station to make adjustments.

[0039] The second-station die 12 is used to cut the double-sided adhesive strip 101 on the double-sided adhesive layer 1 to a length greater than the width of the double-sided adhesive layer 1, ensuring that the double-sided adhesive strip 101 is reliably cut off.

[0040] The roll material corresponding to double-sided adhesive layer 2 has a light film 6 on the upper layer and a process release film 5 on the lower layer; the roll material corresponding to blue release film 2 has a bottom film 3 on the lower layer.

[0041] Both the double-sided adhesive layer 1 and the blue release film 2 are equipped with independent pulling rollers. By controlling the speed ratio of the corresponding pulling rollers, the large concentric circular holes 1-1 of the double-sided adhesive layer 1 are punched and asynchronously pulled to the upper surface of the blue release film 2. The material is then removed, laminated, and contoured by the punching of the die 12 at the second station.

[0042] By adopting the process of this invention, machine costs, material savings, product spacing, and waste and edge material at the tearing point are reduced; dimensional stability is high, and processing efficiency is increased by 50%.

[0043] It will be apparent to those skilled in the art that the present 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 its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An asynchronous punching process, characterized in that: The width of the roll of double-sided adhesive and blue release film is selected to cover the width of the final product. The three-station die-cutting molds are integrated on a flat die. After the double-sided adhesive is punched with large concentric holes by the first station die of the flat die, the double-sided adhesive is asynchronously transferred to the upper surface of the blue release film by the second station die of the flat die. At the same time, the second station die is used to cut the double-sided adhesive strip away from the roll corresponding to the double-sided adhesive layer, and to cut out the overall outer contour of the double-sided adhesive strip and the blue release film. Then, the bottom film of the blue release film drives the blue release film and the double-sided adhesive strip to step under the third station die of the flat die. The third station die cuts off the excess part at both ends of the horizontal length of the double-sided adhesive strip, exposing the tear point of the blue release film, and simultaneously punches out small concentric holes and other through holes, and then flows into the subsequent station. It includes the following steps: The double-sided adhesive layer is placed above the blue release film layer and conveyed to the feeding area of ​​the hardware mold behind it by conveyor rollers. The hardware mold is equipped with a flat knife, and the flat knife has three cutting dies from front to back. The first cutting die is used to punch the large concentric holes on the double-sided adhesive layer. The second cutting die is used to punch the double-sided adhesive strip away from the material roll corresponding to the double-sided adhesive layer, and at the same time, to laminate the double-sided adhesive strip onto the blue release film material roll below, and to punch out the overall outer contour of the blue release film. The third cutting die cuts off the excess part at both ends of the horizontal length of the double-sided adhesive strip, exposing the tear point of the blue release film, and at the same time punches out the small concentric holes and other through holes. a. The first step of the double-sided adhesive layer is fed into the first station die, and the first station die punches down to cut the large concentric holes of the double-sided adhesive layer. Then the first step of the double-sided adhesive layer moves to the second station die. At the same time, the process release film under the double-sided adhesive layer discharges the waste material from the production line. b. The part of the double-sided adhesive layer with the large concentric holes removed is located above the blue release film. Then, the die in the second station punches downwards to cut the double-sided adhesive strip away from the roll corresponding to the double-sided adhesive layer. At the same time, the double-sided adhesive strip is laminated onto the blue release film roll below, and the blue release film is punched out to form the overall outer contour. c. The bottom film of the blue release film drives the blue release film and double-sided adhesive strip to step forward two steps to the third station of the flat knife below the die. d. The third station die cuts off the excess parts at both ends of the double-sided adhesive strip in the horizontal length direction, exposing the tear-off part of the blue release film, and at the same time punches out small concentric holes and other through holes, and then flows into the subsequent station; The distance of the first step is less than the distance of the second step; The double-sided adhesive layer is narrower at the tear point of the blue release film; The distance of the second step is 0.5mm to 1mm larger than the width of the final product; The first station die-cutting mold only covers the corresponding area of ​​the double-sided adhesive layer and does not cover the initial position of the blue release film entering the production line; The first step involves a distance greater than the width of the double-sided adhesive strip; The second station die is used to cut the double-sided adhesive strip from the double-sided adhesive layer to a length greater than the width of the double-sided adhesive layer.

2. The asynchronous punching process as described in claim 1, characterized in that: The roll of material corresponding to the double-sided adhesive layer has a light film on the upper layer and a process release film on the lower layer; the roll of material corresponding to the blue release film has a bottom film on the lower layer.

3. The asynchronous punching process as described in claim 1, characterized in that: Both the double-sided adhesive layer and the blue release film are equipped with independent pulling rollers. By controlling the speed ratio of the corresponding pulling rollers, the large concentric holes of the double-sided adhesive layer of the product are punched and asynchronously pulled to the upper surface of the blue release film. The double-sided adhesive strip is punched off from the material roll corresponding to the double-sided adhesive layer by the punching of the die at the second station. At the same time, the double-sided adhesive strip is laminated onto the blue release film material roll below, and the blue release film is punched out to form the overall outer contour.

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