Release paper blue film automatic winding device of square battery core rubber coating machine

Abstract

The utility model discloses an automatic winding device for a release paper blue film of a square battery core rubber coating machine, which relates to the technical field of lithium ion battery manufacturing and comprises a support frame, a tightening component and a winding component are mounted on the same surface of the support frame, and a release paper and blue film separating roller is arranged on one side, close to the tightening component, of the outside of the support frame. The tightening assembly comprises a first fixed carrier roller, a second fixed carrier roller and a bearing rolling roller, the first fixed carrier roller and the second fixed carrier roller are both installed at the top end of the supporting frame, and the bearing rolling roller is movably installed on the portion, between the first fixed carrier roller and the second fixed carrier roller, of the supporting frame. The release paper sequentially bypasses the first fixed carrier roller, the bearing rolling roller and the second fixed carrier roller and then is wound by the winding assembly. The device is simple in structure, winding can be completed only through one set of transmission motors, cost is saved, and due to the fact that the first fixed carrier roller, the second fixed carrier roller, the bearing rolling roller and the core winding roller are convenient to install, the device can conveniently wind blue films and release paper with different widths.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium ion battery manufacturing, and particularly relates to an automatic winding device for a release paper blue film of a square battery core encapsulation machine. Background Art

[0002] Currently, lithium batteries are widely used in energy storage power supplies, electric vehicles and other fields. In the lithium battery packaging and manufacturing process, the battery cells are assembled after being encapsulated, and the stacking process has technical requirements such as diaphragm film and glue coating. However, ordinary blue film is only suitable for diaphragm film stacking after encapsulation, and release paper blue film is suitable for glue coating stacking, which can better make the glue adsorbed on the blue film and meet the process requirements. Ordinary blue film encapsulation machines are not compatible with release paper. Therefore, a winding device that automatically rewinds the release paper separated from the blue film and is compatible with blue films of different widths has become an urgent need for battery manufacturers. Utility Model Content

[0003] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide an automatic winding device for the release paper blue film of a square battery core encapsulation machine to solve the problems mentioned in the above background technology.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] An automatic winding device for release paper and blue film of a square battery core encapsulating machine comprises a support frame, a tensioning assembly and a winding assembly are installed on the same surface of the support frame, a release paper and blue film separation roller is arranged on the side of the outside of the support frame close to the tensioning assembly, the tensioning assembly comprises a first fixed roller, a second fixed roller and a supporting rolling roller, the first fixed roller and the second fixed roller are both installed on the top of the support frame, the supporting rolling roller is movably installed on the support frame between the first fixed roller and the second fixed roller, the release paper passes around the first fixed roller, the supporting rolling roller and the second fixed roller in sequence, and is then wound up by the winding assembly.

[0006] As a preferred technical solution, the connecting line between the first fixed roller and the second fixed roller is perpendicular to the moving track of the supporting rolling roller.

[0007] As a preferred technical solution, the length directions of the first fixed roller, the second fixed roller and the supporting rolling roller are parallel.

[0008] As a preferred technical solution, the highest point of the motion trajectory of the supporting rolling roller is lower than the first fixed roller and the second fixed roller.

[0009] As a preferred technical solution, a sensor is installed on the side of the support frame close to the guide rail, and the sensing end of the sensor is flush with the highest point of the motion trajectory of the supporting rolling roller.

[0010] As a preferred technical solution, a buffer is installed on the support frame, the buffer end of the buffer faces the slider and the buffer contact point of the buffer is flush with the lowest point of the motion trajectory of the supporting rolling roller.

[0011] As a preferred technical solution, a guide rail is installed on the support frame between the first fixed roller and the second fixed roller, a slider is slidably installed on the guide rail, and the supporting rolling roller is installed on the slider.

[0012] As a preferred technical solution, the winding assembly includes a transmission motor, a core roller is installed at the output end of the transmission motor, the transmission motor and the core roller are both installed on a support frame, and the core roller is parallel to the length direction of the first fixed roller / the second fixed roller / the supporting rolling roller.

[0013] As a preferred technical solution, the first fixed roller, the second fixed roller, the supporting rolling roller and the winding core roller can all be detachably mounted on the support frame.

[0014] As a preferred technical solution, a motor speed regulator is installed on the support frame, and the motor speed regulator is electrically connected to the transmission motor.

[0015] The utility model has the advantages that: the separation roller separates a certain length of release paper and blue film, and the separated release paper passes through the first fixed roller, the supporting roller and the second fixed roller in turn, and is then reeled by the core roller. When the separation roller is separated, the transmission motor stops working, that is, the core roller is stationary. At this time, the separated release paper is always in a taut state under the gravity of the supporting roller, and the supporting roller continues to drop until the slider contacts the buffer, the separation roller stops separating, and the transmission motor starts to drive the core roller to reel the release paper. Under the pressure of the release paper, the supporting roller slides up along the guide rail until the sensor senses the slider, at which time the separation roller starts working again, the core roller stops, and a cycle of reeling is completed. The length of a single separation is the distance between the sensor sensing position and the top of the buffer. The device has a simple structure, and only one set of transmission motors is needed to complete the reeling, saving costs. Since the first fixed roller, the second fixed roller, the supporting roller and the core roller are easy to install, the device can conveniently reel blue films and release papers of different widths.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The three-dimensional structure of the automatic winding device of the release paper blue film of the square battery core encapsulation machine proposed by the utility model Figure 1 ;

[0018] Figure 2 This is a side view of an automatic winding device for release paper and blue film of a square battery core encapsulation machine proposed by the utility model;

[0019] Figure 3 This is a top view of an automatic winding device for release paper and blue film of a square battery core encapsulation machine proposed by the utility model.

[0020] Figure numerals: 1. Support frame; 2. Tensioning assembly; 21. First fixed roller; 22. Second fixed roller; 23. Supporting rolling roller; 24. Guide rail; 25. Slider; 3. Winding assembly; 31. Transmission motor; 32. Winding core roller; 4. Sensor; 5. Buffer; 6. Main switch; 7. Motor speed regulator. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] Example 1

[0023] refer to Figures 1 to 3 The present embodiment describes an automatic winding device for the release paper and blue film of a square battery core encapsulating machine, comprising a support frame 1, on which a tensioning assembly 2 and a winding assembly 3 are mounted, the winding assembly 3 being mounted on one side of the bottom end of the support frame 1, and the tensioning assembly 2 being mounted on the other side, and a release paper and blue film separation roller being arranged on the outside of the support frame 1 close to the tensioning assembly 2, and the separated release paper is wound around the tensioning assembly 2 and then wound up by the winding assembly 3.

[0024] The tensioning assembly 2 includes a first fixed roller 21, a second fixed roller 22 and a supporting rolling roller 23. The first fixed roller 21 and the second fixed roller 22 are both installed at the top of the support frame 1. A guide rail 24 is installed on the support frame 1 between the first fixed roller 21 and the second fixed roller 22. On the plane where the support frame 1 is located, the connecting line between the first fixed roller 21 and the second fixed roller 22 is perpendicular to the guide rail 24. A slider 25 is slidably installed on the guide rail 24. The supporting rolling roller 23 is installed on the slider 25, and the supporting rolling roller 23 is always lower than the first fixed roller 21 and the second fixed roller 22. The separated release paper passes around the first fixed roller 21, the second fixed roller 22 and the supporting rolling roller 23 in sequence. A section of release paper is separated from the separation roller. The supporting rolling roller 23 descends under the action of gravity so that the release paper is always taut. When the supporting rolling roller 23 descends to the lowest position, the separation roller stops separating the blue film and the release paper. At this time, the winding component 3 starts to wind the release paper. Under the action of gravity of the supporting rolling roller 23, the release paper is always taut during the winding process, ensuring that the edges of the wound release paper are aligned, thereby improving the winding effect.

[0025] Preferably, a sensor 4 is installed on the support frame 1. The sensor 4 is located on one side of the guide rail 24 and is lower than the first fixed roller 21 and the second fixed roller 22. The sensor 4 is used to limit the highest point of the slider 25. When the sensor 4 senses that the slider 25 has reached the set highest point, the separator stops working and the winding assembly 3 starts working.

[0026] Preferably, a buffer 5 is installed on the support frame 1, and the buffer 5 is located at the bottom end of the guide rail 24, and the buffer end of the buffer 5 faces the slider 25. When the slider 25 falls to the lowest end, the slider 25 contacts the buffer 5, and the separator starts working, and the winding assembly 3 stops winding.

[0027] Preferably, a main switch 6 for starting and stopping the device is also installed on the support frame 1.

[0028] The winding assembly 3 includes a transmission motor 31, and a core roller 32 is installed at the output end of the transmission motor 31. The transmission motor 31 and the core roller 32 are respectively installed on two sides of the support frame 1, and the core roller 32 and the tensioning assembly 2 are located on the same side of the support frame 1. The transmission motor 31 drives the core roller 32 to rotate, and the core roller 32 rewinds the release paper.

[0029] Preferably, a motor speed regulator 7 is installed on the support frame 1 , and the motor speed regulator 7 is electrically connected to the transmission motor 31 .

[0030] Preferably, the first fixed roller 21, the second fixed roller 22 and the winding core roller 32 are plugged into the support frame 1, and the supporting rolling roller 23 is plugged into the slider 25. When blue films and release papers of different widths need to be rolled up, they can be easily replaced.

[0031] The working order of one cycle is: the separation roller separates a certain length of release paper and blue film, and the separated release paper passes through the first fixed roller 21, the supporting roller 23 and the second fixed roller 22 in turn, and is then reeled by the core roller 32. When the separation roller is separated, the transmission motor 31 stops working, that is, the core roller is stationary. At this time, the separated release paper is always in a taut state under the gravity of the supporting roller 23, and the supporting roller 23 continues to drop until the slider 25 contacts the buffer 5. The separation roller stops separating, and the transmission motor 31 starts to drive the core roller 32 to reel the release paper. Under the pressure of the release paper, the supporting roller 23 slides up along the guide rail 24 until the sensor 4 senses the slider 25. At this time, the separation roller starts working again, and the core roller 32 stops, completing a cycle of reeling. The length of a single separation is the distance between the sensing position of the sensor 4 and the top of the buffer 5. The device has a simple structure and only requires one set of transmission motors 31 to complete the winding, thus saving costs. Since the first fixed roller 21, the second fixed roller 22, the supporting roller 23 and the winding core roller 32 are easy to install, the device can conveniently wind blue films and release papers of different widths.

[0032] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic winding device for release paper blue film of a square battery core encapsulation machine, comprising a support frame (1), characterized in that: A tensioning assembly (2) and a winding assembly (3) are installed on the same surface of the support frame (1); a release paper and a blue film separation roller are arranged on the outside of the support frame (1) near the tensioning assembly (2); the tensioning assembly (2) comprises a first fixed roller (21), a second fixed roller (22) and a supporting roller (23); the first fixed roller (21) and the second fixed roller (22) are both installed at the top of the support frame (1); the supporting roller (23) is movably installed on the support frame (1) between the first fixed roller (21) and the second fixed roller (22); the release paper passes around the first fixed roller (21), the supporting roller (23) and the second fixed roller (22) in sequence, and is then wound up by the winding assembly (3).

2. According to claim 1, the automatic winding device for release paper blue film of square battery core encapsulation machine is characterized by: The connecting line between the first fixed roller (21) and the second fixed roller (22) is perpendicular to the moving track of the supporting rolling roller (23).

3. According to claim 1, the automatic winding device for release paper blue film of square battery core encapsulation machine is characterized by: The length directions of the first fixed roller (21), the second fixed roller (22) and the supporting rolling roller (23) are parallel.

4. The automatic winding device for release paper blue film of square battery core encapsulation machine according to claim 1 is characterized by: The highest point of the motion trajectory of the supporting rolling roller (23) is lower than the first fixed roller (21) and the second fixed roller (22).

5. According to claim 4, the automatic winding device for release paper blue film of square battery core encapsulation machine is characterized by: A sensor (4) is installed on one side of the support frame (1) close to the guide rail (24), and the sensing end of the sensor (4) is flush with the highest point of the motion track of the supporting rolling roller (23).

6. The automatic winding device for release paper blue film of square battery core encapsulation machine according to claim 4 is characterized by: A buffer (5) is installed on the support frame (1), the buffer end of the buffer (5) faces the slider (25) and the buffer contact point of the buffer (5) is flush with the lowest point of the motion track of the supporting rolling roller (23).

7. The automatic winding device for release paper blue film of square battery core encapsulation machine according to claim 1 is characterized by: A guide rail (24) is installed on the support frame (1) between the first fixed roller (21) and the second fixed roller (22), a slider (25) is slidably installed on the guide rail (24), and the supporting rolling roller (23) is installed on the slider (25).

8. The automatic winding device for release paper blue film of square battery core encapsulation machine according to claim 1 is characterized by: The winding assembly (3) comprises a transmission motor (31), the output end of the transmission motor (31) is equipped with a winding core roller (32), the transmission motor (31) and the winding core roller (32) are both installed on the support frame (1), and the winding core roller (32) is parallel to the length direction of the first fixed roller (21) / the second fixed roller (22) / the supporting rolling roller (23).

9. The automatic winding device for release paper blue film of square battery core encapsulation machine according to claim 8, characterized in that: The first fixed roller (21), the second fixed roller (22), the supporting rolling roller (23) and the winding core roller (32) can all be detachably mounted on the support frame (1).

10. The automatic winding device for release paper blue film of square battery core encapsulation machine according to claim 9, characterized in that: A motor speed regulator (7) is installed on the support frame (1), and the motor speed regulator (7) is electrically connected to the transmission motor (31).

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