Wrinkle-removing thread scribing roller

Abstract

The utility model discloses a wrinkle-removing thread scribing roller which comprises a roller body, the roller body is provided with two-way spiral grooves, the two-way spiral grooves comprise clockwise spiral grooves and anticlockwise spiral grooves, and the clockwise spiral grooves and the anticlockwise spiral grooves are arranged in a staggered mode. According to the wrinkle-removing thread scribing roller, a better flattening effect can be achieved, the phenomenon that a membrane material is damaged or wrinkled due to uneven stretching can be remarkably reduced, local excessive stretching or compression is avoided, and therefore the integrity and quality of the membrane material are effectively protected, and the production requirement of high-precision products is met.

Description

Technical Field

[0001] The utility model relates to the technical field of rollers, in particular to a wrinkle-removing thread-marked roller. Background Art

[0002] In recent years, with the development of the lithium-ion battery industry and increasingly fierce market competition, the composite films required for lithium-ion battery production have become increasingly thinner. In traditional composite film production, the composite film is produced on a conventional scored roller under tension. With the emergence of ultra-thin composite films, the continued use of conventional scored rollers to pull the composite film on the roller has led to certain problems. Conventional scored rollers play a certain role in flattening the composite film, but the spiral flattening force from the center outward can cause excessive stretching of the ultra-thin composite film, resulting in damage or wrinkling, which in turn affects the quality of the composite film.

[0003] Therefore, it is necessary to provide a wrinkle-removing thread-scoring roller to solve the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the utility model provides a wrinkle-removing threaded scoring roller, which can not only achieve a better flattening effect, but also significantly reduce the damage or wrinkling of the film material caused by uneven stretching, avoid local excessive stretching or compression, thereby effectively protecting the integrity and quality of the film material, and meeting the production needs of high-precision products.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A wrinkle-removing thread-marked roller comprises a roller, on which a bidirectional spiral groove is provided. The bidirectional spiral groove comprises a clockwise spiral groove and a counterclockwise spiral groove, and the clockwise spiral groove and the counterclockwise spiral groove are arranged alternately.

[0007] As a further improvement of the above technical solution, the helical angles of the clockwise spiral groove and the counterclockwise spiral groove are the same.

[0008] As a further improvement of the above technical solution, the pitch of the clockwise spiral groove and the counterclockwise spiral groove are both 30mm-50mm.

[0009] As a further improvement of the above technical solution, the groove width of the clockwise spiral groove and the counterclockwise spiral groove are both 0.5mm-1.5mm.

[0010] As a further improvement of the above technical solution, the groove depths of the clockwise spiral groove and the counterclockwise spiral groove are both 0.4mm-0.6mm.

[0011] As a further improvement of the above technical solution, an arc-shaped chamfer is provided at the groove edge of the bidirectional spiral groove.

[0012] As a further improvement of the above technical solution, the roller is configured as a hollow cylinder structure.

[0013] As a further improvement of the above technical solution, rotating shaft assemblies are further provided at both ends of the roller, and the rotating shaft assemblies are connected to the two ends of the roller.

[0014] As a further improvement of the above technical solution, the rotating shaft assembly includes a supporting sleeve and a rotating shaft. The supporting sleeve is inserted into the hollow cylinder of the roller, and the rotating shaft is fixedly connected to one end of the supporting sleeve away from the roller.

[0015] The beneficial effects of the utility model are:

[0016] The utility model replaces the ordinary scored roller used in the production of ultra-thin composite films with a bidirectional scored thread roller. When using the bidirectional scored thread roller, the properties of the bidirectional scored thread groove are utilized so that the ultra-thin composite film can be subjected to uniform and symmetrical flattening forces from both sides when running on the roller, thereby achieving a better uniform effect. At the same time, the bidirectional scored thread groove is arranged in a staggered manner with clockwise spiral grooves and counterclockwise spiral grooves, which can ensure that the force applied to the film material during the flattening process is evenly distributed. Compared with the traditional flattening method from the middle to the two sides, it is more effective, can significantly reduce the damage or wrinkling of the film material caused by uneven stretching, avoids local excessive stretching or compression, thereby effectively protecting the integrity and quality of the film material, and meeting the production requirements of high-precision products. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic structural diagram of the wrinkle-removing thread-scoring roller of the utility model;

[0019] Figure 2 This is a disassembled structural diagram of the wrinkle-removing thread-scoring roller of the utility model.

[0020] Figure numerals: 1, roller; 2, bidirectional thread groove; 3, rotating shaft assembly; 31, supporting sleeve shaft; 32, rotating shaft. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. For example, fixed connection / fixed installation can be selected from screw connection, bolt connection, pin connection, key connection, bonding, mortise and tenon connection, welding, riveting and other methods as needed. For detachable connection, screw connection, bolt connection, threaded connection, snap connection, mortise and tenon connection, Velcro connection and other methods can be selected as needed. The various technical features in the creation of the present invention can be combined interchangeably without conflicting with each other.

[0022] Reference Figure 1 , a wrinkle-removing threaded groove roller, comprising a roller 1, wherein the roller 1 is made of aluminum and is provided with a bidirectional spiral groove 2. By utilizing the properties of the bidirectional groove, the ultra-thin composite film can be subjected to uniform and symmetrical flattening forces from both sides when running on the roller, thereby achieving a better uniform effect; and the bidirectional spiral groove 2 comprises a clockwise spiral groove and a counterclockwise spiral groove, and the clockwise spiral groove and the counterclockwise spiral groove are staggered with each other. The bidirectional spiral groove design can ensure that the force applied to the membrane during the flattening process is evenly distributed, which is more effective than the traditional flattening method from the middle to both sides, and can significantly reduce damage or wrinkling of the membrane caused by uneven stretching, avoid local excessive stretching or compression, thereby effectively protecting the integrity and quality of the membrane, and meeting the production requirements of high-precision products.

[0023] Specifically, the helical angles of the clockwise spiral groove and the counterclockwise spiral groove are the same, so as to ensure that the structural composite film is evenly flattened, and the thinner substrate is smoothly flattened without wrinkling, arching, stretching damage, etc.

[0024] The pitch of the clockwise and counterclockwise spiral grooves is 30mm-50mm, preferably 40mm; the groove width of the clockwise and counterclockwise spiral grooves is 0.5mm-1.5mm, preferably 1mm; the groove depth of the clockwise and counterclockwise spiral grooves is 0.4mm-0.6mm, preferably 0.5mm. By providing a bidirectional shallow thread groove, compared to the traditional scoring roller that does not fully remove the air between the film and the roller from the middle to both sides, which causes arching, the bidirectional scoring roller can more fully remove the air between the film and the roller through the bidirectional shallow thread groove, which can effectively solve the problem of film arching. In addition, the groove edge of the bidirectional spiral groove 2 has no sharp corners to avoid scratches on the composite film and affect the appearance of the composite film.

[0025] Reference Figure 2 In the embodiment of the present invention, the roller 1 is configured as a hollow cylinder structure, and the aluminum material is light, the energy consumption is small during production and it is easy to mark lines, the processing is more convenient and the cost is low.

[0026] Rotating shaft assemblies 3 are also provided at both ends of the roller 1. The rotating shaft assemblies 3 are connected to both ends of the roller to ensure that the roller 1 can be installed and rotated normally, thereby rotating and flattening the composite film.

[0027] Specifically, the rotating shaft assembly 3 includes a supporting sleeve 31 and a rotating shaft 32. The supporting sleeve 31 is inserted into the hollow cylinder of the roller 1 to support the roller 1 so that the roller 1 can flatten the film. The rotating shaft 32 is fixedly connected to the end of the supporting sleeve 31 away from the roller, and is then connected to the driving mechanism through the rotating shaft 32 so that the roller 1 can rotate, so as to realize the stable flattening of the ultra-thin composite film by the bidirectional threaded roller.

[0028] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A wrinkle-removing thread-scoring roller, characterized by: The roller comprises a bidirectional spiral groove, wherein the bidirectional spiral groove comprises a clockwise spiral groove and a counterclockwise spiral groove, and the clockwise spiral groove and the counterclockwise spiral groove are arranged alternately.

2. The wrinkle-removing thread-scoring roller according to claim 1, characterized in that: The helical angles of the clockwise spiral groove and the counterclockwise spiral groove are the same.

3. The wrinkle-removing thread-scoring roller according to claim 1, characterized in that: The pitches of the clockwise spiral groove and the counterclockwise spiral groove are both 30mm-50mm.

4. The wrinkle-removing thread-scoring roller according to claim 1, characterized in that: The groove widths of the clockwise spiral groove and the counterclockwise spiral groove are both 0.5mm-1.5mm.

5. The wrinkle-removing thread-scoring roller according to claim 1, characterized in that: The groove depths of the clockwise spiral groove and the counterclockwise spiral groove are both 0.4mm-0.6mm.

6. The wrinkle-removing thread-scoring roller according to claim 1, characterized in that: The edges of the bidirectional spiral grooves are provided with arc-shaped chamfers.

7. The wrinkle-removing thread-scoring roller according to claim 1, characterized in that: The roller is arranged in a hollow cylinder structure.

8. The wrinkle-removing thread-scoring roller according to claim 7, characterized in that: Rotating shaft assemblies are also provided at both ends of the roller, and the rotating shaft assemblies are connected to the two ends of the roller.

9. The wrinkle-removing thread-scoring roller according to claim 8, characterized in that: The rotating shaft assembly includes a supporting sleeve shaft and a rotating shaft. The supporting sleeve shaft is inserted into the hollow cylinder of the roller, and the rotating shaft is fixedly connected to one end of the supporting sleeve shaft away from the roller.

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