Die-cutting tool, die-cutting knife roll and non-knife-mark die-cutting device suitable for ultrathin non-tough materials
By optimizing the design of the die-cutting cutter and the scratch-free die-cutting device, the problem of difficulty in controlling the depth of the cut marks in the die-cutting of ultra-thin copper foil has been solved, realizing scratch-free die-cutting and non-destructive transfer, thus improving the appearance quality of the product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SINGLETON (CHANGZHOU) MATERIAL TECH CO LTD
- Filing Date
- 2025-05-22
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional ultra-thin copper foil die-cutting processes suffer from the inability to precisely control the depth of the cuts, leading to edge collapse and reverse separation of the copper foil, which affects the appearance quality of the product.
Design a die-cutting tool and die-cutting device suitable for ultra-thin non-tough materials. By adjusting the blade angle and structure, the material compression is reduced. Combined with a mark-free die-cutting device, a multi-layer film structure is used for die-cutting to avoid the formation of marks.
It improves the flatness of the product appearance after die-cutting, avoids the phenomenon of copper foil edges sinking into the knife marks, and achieves the target product production of non-destructive transfer and non-reverse separation.
Smart Images
Figure CN224255553U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to a die-cutting tool, die-cutting roller, and die-cutting device for ultra-thin non-tough materials, belonging to the technical field of ultra-thin material die-cutting equipment. Background Technology
[0002] Traditional ultra-thin copper foil die-cutting process involves direct die-cutting onto a base film. This results in tool marks on the base film after die-cutting. With a die-cutting equipment precision of only 0.1mm, the depth of these tool marks cannot be precisely controlled, posing a risk of penetrating the base film. Figure 1a , Figure 1b , Figure 1c As shown, the edge of the copper foil will sink into the tool mark, causing the edge to collapse and resulting in poor appearance. The edge of the copper foil will sink into the tool mark, which will cause reverse separation during the assembly process. Utility Model Content
[0003] The main purpose of this utility model is to provide a die-cutting tool, die-cutting roller and die-cutting device for ultra-thin non-tough materials, thereby overcoming the shortcomings of the prior art.
[0004] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes:
[0005] The first aspect of this utility model provides a die-cutting tool suitable for ultra-thin, non-tough materials, comprising: a tool holder and two cutting heads, the two cutting heads being spaced apart on the tool holder, the two cutting heads and the tool holder enclosing a working space corresponding to the target structure to be preserved during die-cutting, each cutting head having a cutting edge and a first cutting face and a second cutting face, the cutting edge being located between the first cutting face and the second cutting face, the first cutting face and the second cutting face being arranged opposite to each other, the first cutting face being located on the side of the cutting head facing the working space, the normal of the interface between the first cutting face and the connection between the cutting head and the tool holder forming a first angle, the normal of the interface between the second cutting face and the connection between the cutting head and the tool holder forming a second angle, the first angle being smaller than the second angle.
[0006] A second aspect of this utility model provides a die-cutting roller suitable for ultra-thin, non-tough materials, comprising: a roller shaft and a die-cutting tool suitable for ultra-thin, non-tough materials, the die-cutting tool being disposed on the roller surface of the roller shaft.
[0007] A third aspect of this utility model provides a die-cutting device without knife marks suitable for ultra-thin, non-tough materials, comprising: a non-tough material unwinding roller, a first bottom film unwinding roller, a second bottom film unwinding roller, a first bottom film take-up roller, a target product take-up roller, a first pressing structure, a second pressing structure, and the aforementioned die-cutting roller suitable for ultra-thin, non-tough materials.
[0008] The non-tough material unwinding roller is used to carry the non-tough material film. The first bottom film unwinding roller is used to carry the first bottom film. The second bottom film unwinding roller is used to carry the second bottom film. The first pressing structure is arranged between the non-tough material unwinding roller, the first bottom film unwinding roller, the first bottom film take-up roller, and the target product take-up roller along the conveying direction of the non-tough material film and the first bottom film. It is used to stack and press the non-tough material film and the first bottom film to form a first composite film during the conveying process of the non-tough material film and the first bottom film. The die-cutting roller is used to die-cut the non-tough material film in the first composite film. The second pressing structure is arranged between the second bottom film unwinding roller and the target product take-up roller along the conveying direction of the first composite film and the second bottom film. It is used to stack and press the first composite film and the second bottom film to form a second composite film during the conveying process of the first composite film and the second bottom film. The first bottom film and the second bottom film are respectively arranged on both sides of the non-tough material film.
[0009] The first bottom film take-up roller is used to drive the first bottom film to separate from the non-tough material film and collect the first bottom film after separation from the non-tough material film. The target product take-up roller is used to collect the second composite film formed by the second bottom film and the non-tough material film.
[0010] Compared with the prior art, the advantages of this utility model include:
[0011] This invention increases the inclination angle of the first cutting face located on the inner side of the cutter head (the side closest to the working space), that is, reduces the first included angle between the first cutting face and the normal of the connection interface between the cutter head and the cutter holder. When the cutter head contacts and cuts the ultra-thin non-tough material film, it can reduce the pressure of the cutter head on the ultra-thin non-tough material film, and prevent the edge part of the ultra-thin non-tough material film after cutting from being squeezed into the cut marks formed on the base film, thereby improving the appearance flatness of the die-cut product.
[0012] This utility model provides a die-cutting device for ultra-thin non-tough materials without knife marks, which can realize the transfer and transmission of non-tough material films. It converts the first base film, which may be damaged during the die-cutting / pressure cutting process, into a new second base film, thereby obtaining a target product film with an undamaged surface. At the same time, it can also avoid problems such as poor release during film peeling. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 is Figure 1a , Figure 1b , Figure 1c This is a schematic diagram of the traditional ultra-thin copper foil die-cutting process in existing technology;
[0015] Figure 2 This is a cross-sectional view of a die-cutting tool suitable for ultra-thin, non-tough materials, provided in a typical embodiment of this utility model;
[0016] Figure 3 This is a schematic diagram of a die-cutting device for ultra-thin, non-tough materials, provided in a typical embodiment of this utility model. Detailed Implementation
[0017] In view of the shortcomings of the prior art, the inventor of this case, through long-term research and extensive practice, has come up with the technical solution of this utility model. The following will further explain the technical solution, its implementation process, and its principles.
[0018] The first aspect of this utility model provides a die-cutting tool suitable for ultra-thin, non-tough materials, comprising: a tool holder and two cutting heads, the two cutting heads being spaced apart on the tool holder, the two cutting heads and the tool holder enclosing a working space corresponding to the target structure to be preserved during die-cutting, each cutting head having a cutting edge and a first cutting face and a second cutting face, the cutting edge being located between the first cutting face and the second cutting face, the first cutting face and the second cutting face being arranged opposite to each other, the first cutting face being located on the side of the cutting head facing the working space, the normal of the interface between the first cutting face and the connection between the cutting head and the tool holder forming a first angle, the normal of the interface between the second cutting face and the connection between the cutting head and the tool holder forming a second angle, the first angle being smaller than the second angle.
[0019] Furthermore, the blade is a sharp edge formed by the intersection of the first blade surface and the second blade surface, the normal of the connecting interface intersects the sharp edge perpendicularly, and the plane in which the normal of the connecting interface and the sharp edge are located is perpendicular to the connecting interface.
[0020] Furthermore, the first included angle does not exceed 5°, the second included angle is greater than twice the first included angle, and the second included angle is an acute angle.
[0021] Furthermore, the second included angle is 12.5°.
[0022] Furthermore, the cutting edges of the two blades are located in the same plane parallel to the connection interface.
[0023] Furthermore, the two cutting heads have a mirror-symmetric structure.
[0024] Furthermore, the cutting head has a ring structure, with one of the two cutting heads arranged around the periphery of the other.
[0025] A second aspect of this utility model provides a die-cutting roller suitable for ultra-thin, non-tough materials, comprising: a roller shaft and a die-cutting tool suitable for ultra-thin, non-tough materials, the die-cutting tool being disposed on the roller surface of the roller shaft.
[0026] A third aspect of this utility model provides a die-cutting device without knife marks suitable for ultra-thin, non-tough materials, comprising: a non-tough material unwinding roller, a first bottom film unwinding roller, a second bottom film unwinding roller, a first bottom film take-up roller, a target product take-up roller, a first pressing structure, a second pressing structure, and the aforementioned die-cutting roller suitable for ultra-thin, non-tough materials.
[0027] The non-tough material unwinding roller is used to carry the non-tough material film. The first bottom film unwinding roller is used to carry the first bottom film. The second bottom film unwinding roller is used to carry the second bottom film. The first pressing structure is arranged between the non-tough material unwinding roller, the first bottom film unwinding roller, the first bottom film take-up roller, and the target product take-up roller along the conveying direction of the non-tough material film and the first bottom film. It is used to stack and press the non-tough material film and the first bottom film to form a first composite film during the conveying process of the non-tough material film and the first bottom film. The die-cutting roller is used to die-cut the non-tough material film in the first composite film. The second pressing structure is arranged between the second bottom film unwinding roller and the target product take-up roller along the conveying direction of the first composite film and the second bottom film. It is used to stack and press the first composite film and the second bottom film to form a second composite film during the conveying process of the first composite film and the second bottom film. The first bottom film and the second bottom film are respectively arranged on both sides of the non-tough material film.
[0028] The first bottom film take-up roller is used to drive the first bottom film to separate from the non-tough material film and collect the first bottom film after separation from the non-tough material film. The target product take-up roller is used to collect the second composite film formed by the second bottom film and the non-tough material film.
[0029] Furthermore, the die-cutting device for ultra-thin non-tough materials without knife marks includes: a first pressure roller group, a second pressure roller group, and a third pressure roller group arranged sequentially along a first direction. The first pressure roller group and the second pressure roller group are configured to form the first pressing structure, and the second pressure roller group and the third pressure roller group are configured to form the second pressing structure. The non-tough material unwinding roller is arranged above the first bottom film unwinding roller along the first direction.
[0030] Furthermore, the first pressure roller group includes x first pressure rollers arranged along the second direction, the second pressure roller group includes y second pressure rollers arranged along the second direction, and the third pressure roller group includes z third pressure rollers arranged along the second direction. Each first pressure roller corresponds to a second pressure roller along the first direction and forms a pair of pressure rollers, and each third pressure roller corresponds to a second pressure roller along the first direction and forms a pair of pressure rollers. The die-cutting roller is arranged between the first first pressure roller and the xth first pressure roller along the second direction, and the die-cutting roller also corresponds to a second pressure roller along the first direction, where z = y ≥ x ≥ 2.
[0031] Furthermore, the non-tough material unwinding roller, the first bottom film unwinding roller, the first bottom film take-up roller, and the target product take-up roller are located on the same side of the first pressing structure and the second pressing structure along the second direction, and the second bottom film unwinding roller is located on the other side of the first pressing structure and the second pressing structure along the second direction.
[0032] The following will provide a further explanation of the technical solution, its implementation process, and its principles, in conjunction with the accompanying drawings and specific implementation examples.
[0033] In a more specific embodiment, a die-cutting roller suitable for ultrathin non-tough materials includes a roller shaft and a die-cutting tool disposed on the roller surface of the roller shaft.
[0034] Please see Figure 2The die-cutting tool includes a tool holder 1810 and two cutter heads 1820. The two cutter heads 1820 are spaced apart on the tool holder 1810, and the two cutter heads 1820 and the tool holder 1810 enclose a working space corresponding to the target structure to be preserved during die-cutting. Each cutter head 1820 has a cutting edge 1821, a first cutting surface 1822, and a second cutting surface 1823. The cutting edge 1821 is located between the first cutting surface 1822 and the second cutting surface 1823. The first cutting surface 1822 and the second cutting surface 1823 are arranged opposite to each other. The first cutting face 1822 is located on the side of the cutting head 1820 facing the workspace. The normal 001 of the connection interface between the first cutting face 1822 and the cutting head 1820 and the tool holder 1810 forms a first angle α. The second cutting face 1823 and the normal 001 of the connection interface between the cutting head 1820 and the tool holder 1810 form a second angle β. The first angle α is smaller than the second angle β, wherein the first angle α does not exceed 5°, the second angle β is greater than twice the first angle α, and the second angle β is an acute angle. For example, the second angle β is 12.5°.
[0035] Specifically, this invention increases the inclination angle of the first cutting surface 1822 located inside the cutter head 1820 (the side closest to the working space), that is, reduces the first included angle α formed by the first cutting surface 1822 and the normal 001 of the connection interface between the cutter head 1820 and the cutter holder 1810. When the cutter head 1820 contacts the ultra-thin non-tough material film and performs pressure cutting on the ultra-thin non-tough material film, the pressure exerted by the cutter head 1820 on the ultra-thin non-tough material film can be reduced, and the edge part of the ultra-thin non-tough material film after cutting is prevented from being squeezed into the knife marks formed by pressure cutting on the base film, thereby improving the appearance flatness of the die-cut product.
[0036] Specifically, the tool holder 1810 has a first surface and a second surface facing away from each other. The first surface is continuous and flat, while the shape and structure of the second surface are not specifically limited. Two cutting heads 1820 are fixed to the first surface at intervals. The orthographic projection area of the cutting head 1820 on the first surface serves as the connection interface. Of course, the first surface as a whole can also be approximated as the connection interface. Specifically, the first cutting surface 1822 and the second cutting surface 1823 are both inclinedly arranged on the first surface. The cutting edge 1821 is the sharp ridge line formed by the intersection of the first cutting surface 1822 and the second cutting surface. The normal 001 of the connection interface 002 intersects the sharp ridge line perpendicularly, and the plane where the normal 001 of the connection interface and the sharp ridge line are located is perpendicular to the connection interface 002.
[0037] As a preferred embodiment, the two cutting heads 1820 have a mirror-symmetric structure, and the cutting edges 1821 of the two cutting heads 1820 are located in the same plane parallel to the connection interface. That is, the shape, structure and material of the two cutting heads 1820 are the same, and the material can be any material known in the art, without specific limitations.
[0038] Specifically, the cutter head has a ring structure, with one of the two cutter heads surrounding the other. Of course, the cutter head can also be designed with a specific shape and structure according to specific needs, which will not be discussed or limited here.
[0039] Please see Figure 3 A die-cutting device for ultra-thin, non-tough materials without knife marks includes a non-tough material unwinding roller 110, a first base film unwinding roller 120, a second base film unwinding roller 130, a first base film take-up roller 140, a target product take-up roller 150, a first pressing structure 160, a second pressing structure 170, and a die-cutting roller 180 for ultra-thin, non-tough materials. The non-tough material unwinding roller 110 carries a non-tough material film 201, the first base film unwinding roller 120 carries a first base film 202, and the second base film unwinding roller 130 carries a second base film 203. The first pressing structure 160 is disposed along the conveying direction of the non-tough material film and the first base film between the non-tough material unwinding roller 110, the first base film unwinding roller 120, the first base film take-up roller 140, and the target product take-up roller 150, and is used for pressing the non-tough material film 201 and the first base film 202. During the conveying process of 2, the non-tough material film 201 and the first base film 202 are laminated and pressed together to form a first composite film. The die-cutting roller 180 is used to die-cut the non-tough material film in the first composite film. The second pressing structure 170 is arranged between the second base film unwinding roller 130 and the target product winding roller 150 along the conveying direction of the first composite film and the second base film, and is used to laminate and press the first composite film and the second base film together to form a second composite film during the conveying process of the first composite film and the second base film. The first base film 202 and the second base film 203 are respectively arranged on both sides of the non-tough material film 201. The first base film winding roller 140 is used to drive the first base film to separate from the non-tough material film and collect the first base film after separation from the non-tough material film. The target product winding roller 150 is used to collect the second composite film formed by the second base film and the non-tough material film.
[0040] Understandably, through this device, the non-tough material film and the first base film are pressed together by the first pressing structure 160 during the transport process to form a stacked first composite film. During the transport of the first composite film, the die-cutting roller 180 die-cuts / presses the non-tough material film in the first composite film. Subsequently, the die-cut / pressed first composite film continues to be transported and, during the transport process, is pressed together with the second base film by the first pressing structure 160 to form a stacked second composite film. The first base film and the second base film are arranged back to back. Then, the first base film is separated from the non-tough material film by the cooperation of the first base film winding roller 140, and the first base film is recovered. Finally, the remaining target product (which can be understood as the third composite film, i.e., the stack of the non-tough material film and the second base film) is wound onto the target product winding roller 150. The transport power of the non-tough material film comes from the target product winding roller 150, the transport power of the first base film comes from the first base film winding roller 140, and the transport power of the second base film comes from the target product winding roller 150.
[0041] As is known to those skilled in the art, the non-ductile material unwinding roller 110, the first bottom film unwinding roller 120, the second bottom film unwinding roller 130, the first bottom film take-up roller 140, the die-cutting roller 180, and the target product take-up roller 150 are all capable of rotating around their own axes. The first bottom film take-up roller 140, the die-cutting roller 180, and the target product take-up roller 150 can be driven by an external motor or by an internal motor, without any particular limitation. In addition, the structure of the non-ductile material unwinding roller 110, the first bottom film unwinding roller 120, the second bottom film unwinding roller 130, the first bottom film take-up roller 140, and the target product take-up roller 150 can also be known in the art, and can be obtained by commercial purchase or processing with known processes, without any limitation.
[0042] Specifically, the die-cutting device for ultra-thin non-tough materials includes a first pressure roller group, a second pressure roller group, and a third pressure roller group arranged sequentially along a first direction. The first pressure roller group and the second pressure roller group are configured to form the first film pressing structure 160, and the second pressure roller group and the third pressure roller group are configured to form the second film pressing structure 170. The non-tough material unwinding roller 110 is arranged above the first bottom film unwinding roller 120 along the first direction. The first pressure roller group includes x first pressure rollers 101 arranged along a second direction, and the second pressure roller group includes x first pressure rollers 101 arranged along a second direction. The third pressure roller group includes y second pressure rollers 102 arranged in the second direction, and z third pressure rollers 103 arranged along the second direction. Each first pressure roller 101 corresponds to a second pressure roller 102 along the first direction and forms a pair of pressure rollers. Each third pressure roller 103 corresponds to a second pressure roller 102 along the first direction and forms a pair of pressure rollers. The die-cutting roller 180 is arranged between the first first pressure roller 101 and the xth first pressure roller 101 along the second direction. The die-cutting roller 180 also corresponds to a second pressure roller 102 along the first direction.
[0043] It should be noted that the first direction is parallel to the radial direction of the first pressure roller 101 / second pressure roller 102 / third pressure roller 103, and the second direction is perpendicular to the first direction. The gap between the first pressure roller 101 and the second pressure roller 102 should be sufficient to press the non-tough material film and the first base film to form a relatively firm first composite film that can be separated from the first base film in the future. The gap between the second pressure roller 102 and the third pressure roller 103 should be sufficient to press the first composite film and the second base film to form a relatively firm third composite film that can be separated from the first base film in the future. z=y≥x≥2, for example, x=2, y=z=5. The two first pressure rollers 101 correspond to the second and fourth second pressure rollers 102 respectively, and the die-cutting roller 180 is located between the two first pressure rollers 101.
[0044] It should be noted that the structures of the first pressure roller, the second pressure roller, and the third pressure roller can be completely identical, and their specific structures and dimensions are not limited here.
[0045] Specifically, the non-tough material unwinding roller 110, the first bottom film unwinding roller 120, the first bottom film take-up roller 140, and the target product take-up roller 150 are located on the same side of the first pressing structure 160 and the second pressing structure 170 along the second direction, and the second bottom film unwinding roller 130 is located on the other side of the first pressing structure 160 and the second pressing structure 170 along the second direction.
[0046] Such a device can be used to transfer non-tough material films, converting a first base film that may be damaged during die-cutting / pressure cutting into a new second base film, thereby obtaining a target product film with an undamaged surface. At the same time, it can also avoid problems such as poor release during film peeling.
[0047] It should be noted that the non-tough material can be a material with weak or no toughness, such as copper, which will not spring back when cut. The thickness of the non-tough material film is generally 0.03 mm, and the thickness of the first and second base films is generally 0.05 mm.
[0048] It should be understood that the above embodiments are merely illustrative of the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A die-cutting tool suitable for ultra-thin, non-ductile materials, characterized in that, include: The device comprises a cutter holder and two cutter heads, the two cutter heads being spaced apart on the cutter holder. The two cutter heads and the cutter holder enclose a working space corresponding to the target structure to be preserved during die-cutting. Each cutter head has a cutting edge, a first cutting surface, and a second cutting surface. The cutting edge is located between the first cutting surface and the second cutting surface. The first cutting surface and the second cutting surface are arranged opposite to each other. The first cutting surface is located on the side of the cutter head facing the working space. The normal of the interface between the first cutting surface and the cutter head and the cutter holder forms a first angle, and the normal of the interface between the second cutting surface and the cutter head and the cutter holder forms a second angle. The first angle is smaller than the second angle.
2. The die-cutting tool for ultra-thin, non-ductile materials according to claim 1, characterized in that: The blade is a sharp edge formed by the intersection of the first blade surface and the second blade surface. The normal of the connecting interface intersects the sharp edge perpendicularly. Furthermore, the plane in which the normal of the connecting interface and the sharp edge lie is perpendicular to the connecting interface.
3. The die-cutting tool for ultra-thin, non-tough materials according to claim 1 or 2, characterized in that: The first included angle does not exceed 5°, the second included angle is more than twice the first included angle, and the second included angle is an acute angle.
4. The die-cutting tool for ultra-thin, non-ductile materials according to claim 3, characterized in that: The second included angle is 12.5°.
5. The die-cutting tool for ultra-thin, non-tough materials according to claim 1, characterized in that: The cutting edges of the two cutting heads are located in the same plane parallel to the connection interface.
6. The die-cutting tool for ultra-thin, non-tough materials according to claim 5, characterized in that: The two cutting heads have a mirror-symmetric structure.
7. The die-cutting tool for ultra-thin, non-ductile materials according to claim 1, characterized in that: The cutter head has a ring structure, with one of the two cutter heads arranged around the periphery of the other.
8. A die-cutting roller suitable for ultra-thin, non-ductile materials, characterized in that, include: The roller and the die-cutting tool for ultrathin, non-tough materials as described in any one of claims 1-7, the die-cutting tool being disposed on the roller surface of the roller.
9. A die-cutting device without tool marks suitable for ultra-thin, non-tough materials, characterized in that, include: The components include a non-tough material unwinding roller, a first bottom film unwinding roller, a second bottom film unwinding roller, a first bottom film take-up roller, a target product take-up roller, a first pressing structure, a second pressing structure, and the die-cutting roller for ultra-thin non-tough materials as described in claim 8. The non-tough material unwinding roller is used to carry the non-tough material film. The first bottom film unwinding roller is used to carry the first bottom film. The second bottom film unwinding roller is used to carry the second bottom film. The first pressing structure is arranged between the non-tough material unwinding roller, the first bottom film unwinding roller, the first bottom film take-up roller, and the target product take-up roller along the conveying direction of the non-tough material film and the first bottom film. It is used to stack and press the non-tough material film and the first bottom film to form a first composite film during the conveying process of the non-tough material film and the first bottom film. The die-cutting roller is used to die-cut the non-tough material film in the first composite film. The second pressing structure is arranged between the second bottom film unwinding roller and the target product take-up roller along the conveying direction of the first composite film and the second bottom film. It is used to stack and press the first composite film and the second bottom film to form a second composite film during the conveying process of the first composite film and the second bottom film. The first bottom film and the second bottom film are respectively arranged on both sides of the non-tough material film. The first bottom film take-up roller is used to drive the first bottom film to separate from the non-tough material film and collect the first bottom film after separation from the non-tough material film. The target product take-up roller is used to collect the second composite film formed by the second bottom film and the non-tough material film.
10. The die-cutting device for ultra-thin, non-tough materials according to claim 9, characterized in that, include: A first pressure roller group, a second pressure roller group, and a third pressure roller group are arranged sequentially along a first direction. The first pressure roller group and the second pressure roller group are configured to form the first pressing film structure, and the second pressure roller group and the third pressure roller group are configured to form the second pressing film structure. The non-tough material unwinding roller is arranged above the first bottom film unwinding roller along the first direction.
11. The die-cutting device for ultra-thin, non-tough materials according to claim 10, characterized in that: The first pressure roller group includes x first pressure rollers arranged along the second direction, the second pressure roller group includes y second pressure rollers arranged along the second direction, and the third pressure roller group includes z third pressure rollers arranged along the second direction. Each first pressure roller corresponds to a second pressure roller along the first direction and forms a pair of pressure rollers. Each third pressure roller corresponds to a second pressure roller along the first direction and forms a pair of pressure rollers. The die-cutting roller is arranged between the first first pressure roller and the xth first pressure roller along the second direction. The die-cutting roller also corresponds to a second pressure roller along the first direction, where z = y ≥ x ≥ 2.
12. The die-cutting device for ultra-thin, non-tough materials according to claim 11, characterized in that: The non-tough material unwinding roller, the first bottom film unwinding roller, the first bottom film take-up roller, and the target product take-up roller are located on the same side of the first pressing structure and the second pressing structure along the second direction, and the second bottom film unwinding roller is located on the other side of the first pressing structure and the second pressing structure along the second direction.