Thin film flattening device for lithium battery diaphragm production line

Abstract

The utility model relates to the technical field of lithium battery diaphragms, and discloses a film flattening device for a lithium battery diaphragm production line, which comprises a working table, a transmission device is arranged on the surface of the working table, the film flattening device for the lithium battery diaphragm production line is provided with a control assembly, and an output shaft of a motor drives a disc to rotate. Clamping teeth on the surface of a disc abut against a rack, the rack is stressed to drive a supporting block to slide on the surface of a fixing column, a vertical rod fixed to the surface of the supporting block slides in a transverse plate under supporting of a spring, a push rod on the surface of the vertical rod is turned over to push a movable plate to slide on the surface of a fixing frame, and a roller makes contact with the surface of the lithium battery diaphragm; the roller rotates in the supporting frame, the effect of flattening the lithium battery diaphragm is achieved, due to the fact that the clamping teeth on the surface of the disc are local, reciprocating motion of the vertical rod can be achieved, the roller can flatten the lithium battery diaphragm for multiple times, and the situation that the surface of the film is uneven, and the quality of the film in the final rolling process is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery diaphragms, in particular to a film flattening device for a lithium battery diaphragm production line. Background Art

[0002] Lithium battery separator is a material used to isolate the positive and negative electrodes. It can prevent direct contact between the positive and negative electrodes and prevent current short circuit, while allowing lithium ions to move freely in the battery.

[0003] Lithium battery separators are generally made of polymer materials, such as polypropylene film, which has high chemical and electrochemical stability and can withstand the high temperature and strong acid and alkali environment in lithium-ion batteries.

[0004] In the current lithium battery separator production line, due to the high speed of the film, when the film runs from one of the devices to the traction device, it is easy to have problems such as film deviation and wrinkles, so that when the film is wrapped around the high-speed roller in the traction device, the surface of the film is uneven, affecting the quality of the film when it is finally rolled up. Some film flattening devices with a flattening structure are usually smoothed once during smoothing. For some lithium battery separators with serious wrinkles, a single smoothing cannot solve the problem. To address this problem, we have proposed a film flattening device for lithium battery separator production lines. Utility Model Content

[0005] The utility model aims to provide a film flattening device for a lithium battery diaphragm production line to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thin film flattening device for a lithium battery diaphragm production line, comprising a workbench, a transmission device is arranged on the surface of the workbench, a fixed column is fixedly installed on the surface of the workbench, a fixed frame is fixedly installed on the surface of the fixed column, a control component is arranged on the surface of the fixed column, and the control component comprises: a disc, the disc is rotatably connected to the surface of the fixed column, a motor is fixedly installed on the surface of the fixed column, the output shaft of the motor is fixedly connected to the surface of the disc, and a latch is fixedly installed on the surface of the disc; a support block, the The support block is slidably connected to the surface of the fixed column, and a rack is fixedly installed on the surface of the support block, and the rack is meshed with the latch teeth, and a vertical rod is fixedly installed on the surface of the support block; a horizontal plate, the horizontal plate is fixedly installed on the surface of the fixed column, the horizontal plate is penetrated by the vertical rod and slidably connected to the vertical rod, the surface of the vertical rod is fixedly connected to one end of the spring, and the other end of the spring is fixedly installed on the surface of the horizontal plate; a flattening piece, the control component also includes a flattening piece arranged in the fixed frame, and the roller can smooth the lithium battery diaphragm multiple times to avoid uneven surface of the film, which affects the quality of the film when it is finally rolled up.

[0007] Preferably, a slide groove is provided on the surface of the fixing column, and the setting of the slide groove can ensure the smooth movement of the support block.

[0008] Preferably, a groove is provided on the surface of the fixing frame, and the provision of the groove can ensure the smooth movement of the movable plate.

[0009] Preferably, the flattening member includes: a push rod, one end of which is hinged to the surface of the vertical rod, the other end of which is hinged to the surface of the movable plate, the movable plate is slidably connected to the surface of the fixed frame, and the movable plate slides on the surface of the fixed frame.

[0010] Preferably, a support frame is fixedly mounted on the surface of the movable plate, the support frame is penetrated by the roller and is rotatably connected to the roller, and the roller can rotate on the support frame.

[0011] Preferably, the cross-sectional shape of the movable plate is a concave shape, and the movable plate with a concave shape can fit more closely with the groove on the surface of the fixed frame when subjected to force and maintain linear motion.

[0012] Compared with the prior art, the utility model provides a film flattening device for a lithium battery diaphragm production line, which has the following beneficial effects:

[0013] 1. The film flattening device for the lithium battery diaphragm production line is provided with a control component. The output shaft of the motor drives the disc to rotate. The clamping teeth on the surface of the disc abut against the rack. The rack is forced to drive the support block to slide on the surface of the fixed column. The vertical rod fixed on the surface of the support block slides in the horizontal plate under the support of the spring. The push rod on the surface of the vertical rod is folded to push the movable plate to slide on the surface of the fixed frame. The roller contacts the surface of the lithium battery diaphragm and rotates in the support frame to achieve the effect of smoothing the lithium battery diaphragm. Since the clamping teeth on the surface of the disc are local, the reciprocating motion of the vertical rod can be realized. Therefore, the roller can smooth the lithium battery diaphragm multiple times to avoid uneven surface of the film and affect the quality of the film when it is finally rolled up.

[0014] 2. The thin film flattening device for the lithium battery separator production line is provided with a movable plate. The cross-section of the movable plate is concave in shape. Therefore, when subjected to force, it can fit more closely with the groove on the surface of the fixed frame and maintain linear motion, thereby flattening the lithium battery separator well. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the top view structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the control component of the utility model.

[0019] In the figure: 1. workbench; 2. transmission device; 3. fixed column; 4. fixed frame; 5. control component; 51. motor; 52. disc; 53. latch gear; 54. rack; 55. support block; 56. vertical rod; 57. horizontal plate; 58. spring; 59. flattening piece; 591. push rod; 592. moving plate; 593. support frame; 594. roller. DETAILED DESCRIPTION

[0020] like Figure 1-4 As shown, the utility model provides a technical solution: a thin film flattening device for a lithium battery diaphragm production line, comprising a workbench 1, a transmission device 2 is arranged on the surface of the workbench 1, a fixed column 3 is fixedly installed on the surface of the workbench 1, a fixed frame 4 is fixedly installed on the surface of the fixed column 3, a control component 5 is arranged on the surface of the fixed column 3, and the control component 5 includes: a motor 51, a disc 52, a latch tooth 53, a rack 54, a support block 55, a vertical rod 56, a horizontal plate 57, a spring 58, and a flattening member 59.

[0021] The disc 52 is rotatably connected to the surface of the fixed column 3, a motor 51 is fixedly installed on the surface of the fixed column 3, an output shaft of the motor 51 is fixedly connected to the surface of the disc 52, and a latching tooth 53 is fixedly installed on the surface of the disc 52;

[0022] A support block 55, the support block 55 is slidably connected to the surface of the fixed column 3, a rack 54 is fixedly installed on the surface of the support block 55, the rack 54 is meshed with the latch 53, and a vertical rod 56 is fixedly installed on the surface of the support block 55;

[0023] A horizontal plate 57, which is fixedly mounted on the surface of the fixed column 3, is penetrated by the vertical rod 56 and is slidably connected to the vertical rod 56, and the surface of the vertical rod 56 is fixedly connected to one end of a spring 58, and the other end of the spring 58 is fixedly mounted on the surface of the horizontal plate 57;

[0024] The flattening piece 59, the control component 5 also includes a flattening piece 59 arranged in the fixed frame 4, the output shaft of the motor 51 drives the disc 52 to rotate, and the latch 53 will press against the rack 54 during the rotation. The rack 54 is forced to drive the support block 55 to slide in the slide groove on the surface of the fixed column 3, and the vertical rod 56 fixed on the surface of the support block 55 slides in the cross plate 57 under the support of the spring 58. The push rod 591 on the surface of the vertical rod 56 is folded to push the movable plate 592 to slide on the surface of the fixed frame 4, and the roller 594 contacts the surface of the lithium battery diaphragm and rotates in the support frame 593 to achieve the effect of smoothing the lithium battery diaphragm. Since the latch 53 on the surface of the disc 52 is local, the reciprocating motion of the vertical rod 56 can be realized, so the roller 594 can smooth the lithium battery diaphragm multiple times to avoid the uneven surface of the film and affect the quality of the film when it is finally rolled up.

[0025] A sliding groove is provided on the surface of the fixing column 3 , and the setting of the sliding groove can ensure the smooth movement of the support block 55 .

[0026] A groove is provided on the surface of the fixing frame 4 , and the arrangement of the groove can ensure the smooth movement of the moving plate 592 .

[0027] The flattening member 59 includes: a push rod 591, one end of which is hinged to the surface of the vertical rod 56, and the other end of the push rod 591 is hinged to the surface of the movable plate 592, and the movable plate 592 is slidably connected to the surface of the fixed frame 4. When the vertical rod 56 moves downward, the push rod 591 will be folded and push the movable plate 592 to slide on the surface of the fixed frame 4.

[0028] A support frame 593 is fixedly mounted on the surface of the movable plate 592 . The support frame 593 is penetrated by the roller 594 and is rotatably connected to the roller 594 . The roller 594 can rotate on the support frame 593 .

[0029] The cross-sectional shape of the movable plate 592 is a concave shape. When subjected to force, the movable plate 592 of the concave shape can fit more closely with the groove on the surface of the fixed frame 4 and maintain linear motion.

[0030] In the utility model, when in use, the lithium battery diaphragm is placed on the surface of the transmission device 2 on the surface of the workbench 1. After placement, the motor 51 is started, and the output shaft of the motor 51 drives the disc 52 to rotate. During the rotation process, the latch teeth 53 on the surface of the disc 52 will press against the rack 54. The rack 54 is forced to drive the support block 55 to slide in the slide groove on the surface of the fixed column 3. The vertical rod 56 fixed on the surface of the support block 55 slides in the horizontal plate 57 under the support of the spring 58. When the vertical rod 56 moves downward, the push rod 591 on the surface of the vertical rod 56 is folded, and the push rod 591 on the surface of the vertical rod 56 is pushed. The movable plate 592 slides on the surface of the fixed frame 4. The cross-section of the movable plate 592 is concave, so when subjected to force, it can fit more closely with the groove on the surface of the fixed frame 4 and maintain linear motion. The roller 594 contacts the surface of the lithium battery diaphragm and rotates in the support frame 593 to achieve the effect of smoothing the lithium battery diaphragm. Since the latch teeth 53 on the surface of the disc 52 are local, the reciprocating motion of the vertical rod 56 can be achieved. Therefore, the roller 594 can smooth the lithium battery diaphragm multiple times to avoid unevenness on the film surface and affect the quality of the film when it is finally rolled up.

[0031] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A film flattening device for a lithium battery separator production line, comprising a workbench (1), characterized in that: The surface of the workbench (1) is provided with a transmission device (2), the surface of the workbench (1) is fixedly mounted with a fixing column (3), the surface of the fixing column (3) is fixedly mounted with a fixing frame (4), the surface of the fixing column (3) is provided with a control component (5), and the control component (5) comprises: A disc (52), the disc (52) being rotatably connected to the surface of a fixed column (3), a motor (51) being fixedly mounted on the surface of the fixed column (3), an output shaft of the motor (51) being fixedly connected to the surface of the disc (52), and a latching tooth (53) being fixedly mounted on the surface of the disc (52); A support block (55), the support block (55) is slidably connected to the surface of the fixed column (3), a rack (54) is fixedly installed on the surface of the support block (55), the rack (54) is meshed with the latching teeth (53), and a vertical rod (56) is fixedly installed on the surface of the support block (55); a horizontal plate (57), the horizontal plate (57) being fixedly mounted on the surface of the fixed column (3), the horizontal plate (57) being penetrated by the vertical rod (56) and being slidably connected to the vertical rod (56), the surface of the vertical rod (56) being fixedly connected to one end of a spring (58), and the other end of the spring (58) being fixedly mounted on the surface of the horizontal plate (57); A flattening member (59), wherein the control assembly (5) further comprises a flattening member (59) arranged in the fixed frame (4).

2. The thin film flattening device for a lithium battery separator production line according to claim 1, characterized in that: A sliding groove is provided on the surface of the fixing column (3).

3. The thin film flattening device for a lithium battery separator production line according to claim 1, characterized in that: A groove is provided on the surface of the fixing frame (4).

4. The thin film flattening device for a lithium battery separator production line according to claim 1, characterized in that: The flattening member (59) comprises a push rod (591), one end of which is hinged to the surface of the vertical rod (56), the other end of which is hinged to the surface of a movable plate (592), and the movable plate (592) is slidably connected to the surface of a fixed frame (4).

5. The thin film flattening device for a lithium battery separator production line according to claim 4, characterized in that: A support frame (593) is fixedly mounted on the surface of the movable plate (592), and the support frame (593) is penetrated by the roller (594) and is rotatably connected to the roller (594).

6. A film flattening device for a lithium battery separator production line according to claim 4, characterized in that: The cross-sectional shape of the movable plate (592) is a concave shape.

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