A die-cutting process and die-cutting system

Abstract

This invention discloses a die-cutting process and system. The die-cutting process includes the following steps: die-cutting a film material to cut a first product in a first region of the film material; laminating a first face paper onto the film material to form a semi-finished product; die-cutting the semi-finished product to cut a second product in a second region of the film material, and die-cutting a protective sheet laminated to the second product onto the first face paper, wherein the first region and the second region are two regions spaced apart on the film material; removing waste from the semi-finished product to peel off excess first face paper; and transferring the first product from the semi-finished product onto a first take-up film to separate the first product and the second product. This application significantly reduces the gap area reserved to maintain the strength of the waste strip in traditional die-cutting processes by die-cutting the first and second products in stages in the spaced first and second regions, and then die-cutting the second product from the remaining portion of the film material after die-cutting the first product, thus greatly improving the utilization rate of the film material.

Description

Technical Field

[0001] This invention relates to the field of die-cutting technology, and in particular to a die-cutting process and die-cutting system. Background Technology

[0002] In practical applications of rotary die cutting, the traditional process uses a single rotary die or multiple rotary dies operating synchronously. The cutting patterns on these dies are perfectly aligned in each work cycle, resulting in neat rows and columns of product outlines cut from the material. The uncut portions of the material form a continuous, uniformly wide waste strip, which is collected by a take-up shaft or removed using methods such as air blowing or suction.

[0003] However, this traditional arrangement has significant drawbacks: to ensure the waste strip has sufficient strength and stability for smooth waste removal, a considerable gap must be maintained between adjacent product outlines. These continuous gaps lead to substantial material waste, especially for expensive specialty materials such as battery adhesives, conductive foams, and composite materials, which drastically increases production costs. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the first aspect of the present invention proposes a die-cutting process that can improve the utilization rate of film materials.

[0005] A second aspect of the present invention also proposes a die-cutting system.

[0006] A die-cutting process according to a first aspect of the present invention includes the following steps: The membrane material is die-cut to cut out the first product in the first area of ​​the membrane material; A first sheet is laminated onto the membrane material to form a semi-finished product; The semi-finished product is die-cut to cut out the second product in the second region of the film material, and a protective sheet that is laminated to the second product is die-cut on the first face paper, wherein the first region and the second region are two regions that are spaced apart on the film material; Waste is removed from the semi-finished product to peel off excess first-side paper; The first product in the semi-finished product is transferred onto the first take-up film to separate the first product and the second product.

[0007] A die-cutting process according to an embodiment of the present invention has at least the following technical effects: In the die-cutting process of this application, the film material is first die-cut to form a first product in a first region. Then, a first face paper is laminated onto the die-cut film to form a semi-finished product. The semi-finished product is then die-cut to form a second product in a second region spaced apart from the first region. Simultaneously, a protective sheet laminated to the second product is die-cut onto the first face paper. After the second die-cut, the semi-finished product is de-waxed to remove excess face paper. Finally, the first product in the semi-finished product is transferred to a first take-up film, achieving separation of the first and second products. As can be seen from the above, by die-cutting the first and second products stepwise in the spaced first and second regions, and then die-cutting the second product from the remaining portion of the film after the first product, the gap area reserved to maintain the strength of the waste strip in traditional die-cutting processes is significantly reduced, greatly improving the utilization rate of the film material. This is particularly suitable for processing expensive special materials such as battery adhesives and conductive foams, effectively reducing production costs.

[0008] According to a first aspect of the present invention, a die-cutting process for die-cutting a film material includes the following steps: The second face paper, film material, and backing film are sequentially laminated to form a composite material; The composite material is die-cut to cut a first product from a first region of the membrane material; Peel the second sheet from the composite material to expose the membrane.

[0009] According to a first aspect of the present invention, a die-cutting process for peeling a second sheet from a composite material includes the following steps: The first row of waste film is laminated onto the second sheet; The first row of waste film is wound up to peel the second face paper from the composite material through the first row of waste film.

[0010] According to a die-cutting process based on a first aspect of the present invention, waste removal from semi-finished products includes the following steps: The die-cut film and the first face paper are wound onto the take-up roller to peel off the excess film and the first face paper from the backing film.

[0011] According to a die-cutting process of a first aspect of the present invention, a plurality of first regions are arranged in an array on a film material, and a plurality of second regions are arranged in an array on a film material.

[0012] According to a die-cutting process of a first aspect of the present invention, each first region is provided with a plurality of second regions distributed at circumferential intervals.

[0013] According to a die-cutting process of a first aspect of the present invention, each first region is circumferentially spaced with four second regions.

[0014] According to a first aspect of the present invention, a die-cutting process for transferring a first product from a semi-finished product onto a first take-up film includes the following steps: The first take-up film is laminated onto the semi-finished product; The first winding film is wound up so that the first product follows the first winding film to achieve separation of the first product and the second product.

[0015] According to a die-cutting process of a first aspect of the present invention, after transferring the first product from the semi-finished product onto the first take-up film, the process further includes the following steps: Waste is discharged from the protective sheet to separate it from the second product; The second product from the semi-finished product is transferred onto the second take-up film.

[0016] According to a second aspect of the present invention, a die-cutting system is used to implement the die-cutting process described in the first aspect of the present invention.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a flowchart of a die-cutting process according to one embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the membrane material structure in the diagram; Figure 3 for Figure 1 The flowchart for die-cutting membrane material; Figure 4 for Figure 3 The flowchart in which the second sheet is peeled from the composite material; Figure 5 for Figure 1 The flowchart describes the process of transferring the first product from the semi-finished products onto the first take-up film.

[0019] Figure label: Membrane material 100; Product 1: 200; Second product 300. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, left, right, front, back, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0022] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0023] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0024] The following is for reference. Figures 1 to 5 A die-cutting process according to a first aspect of the present invention will be described in detail.

[0025] refer to Figure 1 and Figure 2 According to a first aspect of the present invention, a die-cutting process includes, but is not limited to, steps S100, S200, S300, S400, and S500: Step S100: Die-cut the membrane material 100 to cut out the first product 200 in the first area of ​​the membrane material 100; Step S200: Lay the first sheet onto the film material 100 to form a semi-finished product; Step S300: Die-cut the semi-finished product to die-cut the second product 300 in the second region of the film material 100, and die-cut the protective sheet that is laminated to the second product 300 on the first paper, wherein the first region and the second region are two regions that are spaced apart on the film material 100. Step S400: Remove waste from the semi-finished product to peel off the excess first face paper; Step S500: Transfer the first product 200 from the semi-finished product onto the first take-up film to separate the first product 200 and the second product 300.

[0026] In the die-cutting process of this application, the film material 100 is first die-cut to form a first product 200 in a first region of the film material 100. Then, a first face paper is laminated onto the die-cut film material 100 to form a semi-finished product. The semi-finished product is then die-cut to form a second product 300 in a second region of the film material 100 that is spaced apart from the first region. At the same time, a protective sheet laminated to the second product 300 is die-cut onto the first face paper. After the second die-cutting is completed, the semi-finished product is de-waxed to remove the excess face paper after die-cutting. Finally, the first product 200 in the semi-finished product is transferred onto a first take-up film to separate the first product 200 and the second product 300. As can be seen from the above, by die-cutting the first product 200 and the second product 300 in stages in the first and second regions with intervals, and then die-cutting the remaining part of the membrane material 100 after die-cutting the first product 200 into the second product 300, the gap area reserved to maintain the strength of the waste strip in the traditional die-cutting process is significantly reduced, and the utilization rate of the membrane material 100 is greatly improved. It is particularly suitable for processing expensive special materials such as battery adhesive and conductive foam, and effectively reduces production costs.

[0027] It is understandable that the die-cutting process of this application can not only save materials by using the film material 100 after die-cutting the first product 200 to die-cut the second product 300, but also, even if the first product 200 and the second product 300 are closely arranged, since the second product 300 is covered with a protective sheet while the upper surface of the first product 200 is exposed, the first product 200 and the second product 300 can be smoothly separated by utilizing the surface difference between the protective sheet and the first product 200.

[0028] refer to Figure 2 and Figure 3 In some embodiments of the present invention, step S100 specifically includes, but is not limited to, the following steps: Step S110: The second paper, the film 100, and the backing film are sequentially laminated to form a composite material; Step S120: Die-cut the composite material to cut out the first product 200 in the first region of the membrane 100; Step S130: Peel the second paper from the composite material to expose the film 100.

[0029] Understandably, when die-cutting the membrane material 100, the second face paper and the backing film are first laminated onto opposite sides of the membrane material 100 to form a composite material. Then, the composite material is die-cut to create the first product 200 in the first region of the membrane material 100. Finally, the second face paper is peeled off from the composite material, exposing the side of the membrane material 100 away from the backing film. Then, the first face paper is laminated onto the side of the membrane material 100 away from the backing film. This application provides protection and support to the membrane material 100 by laminating the second face paper and the backing film onto opposite sides of the membrane material 100, thereby ensuring the membrane material 100 remains flat and stable during die-cutting of the first product 200, further improving die-cutting accuracy. Peeling the second face paper off the membrane material 100 then facilitates the subsequent lamination of the first face paper onto the membrane material 100.

[0030] like Figures 2 to 4 As shown, in some embodiments, step S130 specifically includes, but is not limited to, the following steps: Step S131: Lay the first row of waste film onto the second side paper; Step S132: Rewind the first row of waste film to peel the second paper from the composite material through the first row of waste film.

[0031] It is understandable that after the composite material is die-cut to form the first product 200, the first row of waste film is laminated on the side of the second paper of the composite material away from the film material 100, and then the entire second paper is rolled up with the first row of waste film, so that the second paper is separated from the film material 100, thereby exposing the side of the film material 100 away from the backing film.

[0032] like Figures 2 to 4 As shown, in some embodiments, step S400 specifically includes, but is not limited to, the following steps: The die-cut film 100 and the first face paper are both wound onto the take-up roller to peel off the excess film 100 and the first face paper from the backing film.

[0033] Understandably, since the first sheet is die-cut to form a protective sheet that is laminated to the second product 300, and the film material 100 is die-cut twice to form the first product 200 and the second product 300, after the die-cut waste of the first sheet and the die-cut waste of the film material 100 are wound up, the excess film material 100 and the excess first sheet will be separated from the backing film, so that only the bare first product 200 and the second product 300 laminated with the protective sheet remain on the backing film.

[0034] refer to Figure 2In some embodiments of the present invention, the membrane material 100 is provided with a plurality of first regions arranged in an array, and the membrane material 100 is provided with a plurality of second regions arranged in an array. It is understood that by arranging the plurality of first regions and the plurality of second regions in an array, the first product 200 and the second product 300 are regularly arranged on the membrane material 100, which further optimizes the material layout, reduces gap waste, and facilitates mechanized and automated production, thereby improving processing efficiency and product consistency.

[0035] like Figure 2 As shown, in some embodiments, each first region is circumferentially spaced with multiple second regions. It is understood that by circumferentially spaced with multiple second regions in the first region, multiple second products 300 can be formed around the first product 200, thereby fully utilizing the material space around the first region of the membrane material 100 and maximizing the utilization rate of the membrane material 100.

[0036] like Figure 2 As shown, in one embodiment, each first region is circumferentially spaced with four second regions. Specifically, the plurality of first products 200 and the plurality of second products 300 are arranged in a staggered pattern along both the length and width of the membrane material 100. It can be understood that, due to the symmetrical distribution of the four second regions around the first region, the waste material after die-cutting the first products 200 and second products 300 from the membrane material 100 forms a high-density "honeycomb" arrangement, significantly reducing the waste area and thus greatly improving the utilization rate of the membrane material 100. Furthermore, because the die-cut waste material has an interlaced mesh structure, the waste strip has sufficient strength to disperse the tensile stress generated during winding and unwinding, effectively preventing the waste skeleton from breaking, reducing the risk of production interruption, and improving the stability and yield of the entire process.

[0037] refer to Figure 1 , Figure 2 and Figure 5 In some embodiments of the present invention, step S500 specifically includes, but is not limited to, the following steps: Step S510: Lay the first take-up film onto the semi-finished product; Step S520: The first winding film is wound up so that the first product 200 is wound up along with the first winding film, thereby achieving the separation of the first product 200 and the second product 300.

[0038] Understandably, after peeling off the excess first sheet from the semi-finished product, the side of the first product 200 facing away from the backing film is exposed, while the side of the second product 300 facing away from the backing film has a protective sheet laminated on it. By laminating the first take-up film onto the semi-finished product, the first take-up film is directly attached to the side of the first product 200 facing away from the backing film. When the first take-up film is then rolled up and separated, it can detach the first product 200 from the backing film, while the second product 300 will not detach with it because of the protective sheet laminated to its side facing away from the backing film. This achieves the separation of the first product 200 and the second product 300.

[0039] refer to Figure 1 and Figure 2 In some embodiments, the die-cutting process further includes, but is not limited to, steps S600 and S700 after step S500: Step S600: Discharge the protective sheet to separate it from the second product 300; Step S700: Transfer the second product 300 from the semi-finished product onto the second take-up film.

[0040] Specifically, by laminating a second row of waste film onto the side of the protective sheet facing away from the second product 300, and then by winding up the second row of waste film, the protective sheet and the second product 300 can be separated, leaving only the second product 300 on the backing film. At this time, the side of the second product 300 facing away from the backing film is exposed. Then, by laminating a second take-up film onto the side of the second product 300 facing away from the backing film, and by winding up the second take-up film, the second product 300 laminated on the second take-up film is separated from the backing film, thereby completing the winding of the second product 300.

[0041] Understandably, after the first product 200 is transferred and separated by the first winding film, the second product 300 remains on the backing film, and the second product 300 is still laminated with a protective sheet. By removing the waste from the protective sheet, the side of the second product 300 facing away from the backing film is completely exposed, which facilitates the subsequent transfer of the second product 300 by the second winding film. This achieves complete separation and independent winding of the two products, providing convenience for subsequent packaging, transportation and application.

[0042] The following is a detailed description of a die-cutting system according to a second aspect of the present invention.

[0043] According to a second aspect embodiment of the present invention, a die-cutting system is used to implement the die-cutting process described in the first aspect embodiment above. The die-cutting system of this application is equipped with a first circular blade and a second circular blade for die-cutting a first product 200 and a second product 300, respectively. The relative positional difference between the second and first circular blades is precisely controlled by a control system, causing each second product 300 to be offset relative to each first product 200 in the material feeding direction by a preset positional difference. This allows the second product 300 to be nested within the waste area generated after die-cutting the first product 200, thereby greatly reducing the waste area. Furthermore, the remaining waste film material 100 forms an interlaced mesh structure, improving the strength of the waste film material 100 and thus enhancing die-cutting stability.

[0044] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A die-cutting process, characterized in that, It includes the following steps: The membrane material is die-cut to cut out the first product in the first area of ​​the membrane material; A first sheet is laminated onto the membrane material to form a semi-finished product; The semi-finished product is die-cut to cut out a second product in a second region of the film material, and a protective sheet composited with the second product is die-cut on the first face paper, wherein the first region and the second region are two regions spaced apart on the film material; Waste is removed from the semi-finished product to peel off the excess first face paper; The first product in the semi-finished product is transferred onto the first take-up film to separate the first product and the second product.

2. The die-cutting process according to claim 1, characterized in that, The die-cutting of the membrane material includes the following steps: The second paper, the film material, and the backing film are sequentially laminated to form a composite material; The composite material is die-cut to cut the first product from the first region of the membrane material; Peel the second face paper from the composite material to expose the film material.

3. The die-cutting process according to claim 2, characterized in that, Peeling the second face paper from the composite material includes the following steps: The first row of waste film is laminated onto the second side paper; The first waste film is wound up to peel the second face paper from the composite material through the first waste film.

4. The die-cutting process according to claim 2, characterized in that, The process of removing waste from the semi-finished product includes the following steps: The die-cut film and the first face paper are both wound onto a take-up roller to peel off the excess film and the first face paper from the backing film.

5. The die-cutting process according to claim 1, characterized in that, The membrane material has a plurality of first regions arranged in an array, and the membrane material has a plurality of second regions arranged in an array.

6. The die-cutting process according to claim 5, characterized in that, Each of the first regions has multiple second regions distributed at circumferential intervals.

7. A die-cutting process according to claim 6, characterized in that, Each of the first regions has four second regions distributed at circumferential intervals.

8. The die-cutting process according to claim 1, characterized in that, The step of transferring the first product from the semi-finished product onto the first take-up film includes the following steps: The first take-up film is laminated onto the semi-finished product; The first winding film is wound up so that the first product follows the first winding film to achieve separation of the first product and the second product.

9. A die-cutting process according to claim 8, characterized in that, After transferring the first product from the semi-finished product onto the first take-up film, the process further includes the following steps: The protective sheet is discharged to separate it from the second product; The second product in the semi-finished product is transferred onto the second take-up film.

10. A die-cutting system, characterized in that, Used to implement the die-cutting process as described in any one of claims 1 to 9.

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