Coating device for production and processing of lithium ion battery diaphragm

Abstract

The invention discloses a coating device for producing and processing a lithium ion battery diaphragm, which comprises a concentric-square-shaped drying oven, a first coating assembly is arranged on one side of the concentric-square-shaped drying oven, a second coating assembly is arranged in the middle of the concentric-square-shaped drying oven, an unwinder is arranged on one side of the first coating assembly, and a winder is arranged on one side of the second coating assembly. A film is sequentially fed into the first coating assembly and the second coating assembly through the unwinding device so that the surfaces of the two sides can be continuously coated, a plurality of first guide rollers and a plurality of second guide rollers are arranged in the concentric-square-shaped drying oven, and the first guide rollers and the second guide rollers are spirally distributed. The first guide roller and the second guide roller are symmetrically distributed in a double-helix mode, bidirectional spiral winding and multi-layer winding of the film in the concentric-square-shaped drying oven are achieved through turning of the guide rollers, the air temperature in all positions in the concentric-square-shaped drying oven is evenly distributed through the heaters evenly distributed in a double-helix mode, and the consistency and uniformity of the drying effect are guaranteed. The drying quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery production, in particular to a coating device for producing and processing lithium ion battery diaphragms. Background Art

[0002] In the manufacturing process of lithium-ion batteries, electrode materials (such as positive or negative electrode materials) need to be evenly coated on the separator or other substrates. Based on the study of fluid properties, the main process is to coat one or more layers of liquid on the substrate, which is usually a flexible film or backing paper. The applied liquid coating then undergoes a drying or curing process to form a film layer with specific functions.

[0003] The application document with publication number CN115475735A discloses an extrusion coating machine for lithium battery production, including an oven, a first bracket, a second bracket, a material spreading roller, a first motor, a winding roller and a second motor. The first bracket is arranged at the left end of the oven, and the second bracket is arranged at the right end of the oven. The material spreading roller is rotatably mounted on the rear side of the inner cavity of the first bracket, the first motor is fixedly mounted on the rear side of the first bracket, and the output end of the first motor is fixedly connected to the rear end of the material spreading roller.

[0004] The above-mentioned device has the following shortcomings: the drying time per unit area is short when in use, the drying process is not thorough and sufficient, which easily causes the coating material to adhere to the outer surface of the processed parts, and the space utilization efficiency of the above-mentioned device is low, which reduces the overall production and processing efficiency, and occupies a large area and has a narrow scope of application. At the same time, it is difficult for the above-mentioned device to accurately and stably control the coating thickness, it is difficult to improve the overall quality of the product, and the material consumption is large. Summary of the invention

[0005] The purpose of the present invention is to provide a coating device for the production and processing of lithium-ion battery separators in order to address the above-mentioned problems and shortcomings, thereby improving the overall work efficiency.

[0006] The present invention solves at least one of the following technical problems: (1) The drying time per unit area of ​​the above device is short when in use, and the drying process is not thorough and sufficient, which easily causes the coating material to adhere to the outer surface of the processed parts; (2) The above-mentioned device has low space utilization efficiency, which reduces the overall production and processing efficiency, occupies a large area and has a narrow scope of application; (3) The above device is difficult to accurately and stably control the coating thickness, it is difficult to improve the overall quality of the product, and the material consumption is large.

[0007] The objective of the present invention can be achieved through the following technical scheme: a coating device for the production and processing of lithium-ion battery separators, comprising a circular oven, a first coating assembly is provided on one side of the circular oven, a second coating assembly is installed in the middle of the circular oven, a reel is provided on one side of the first coating assembly, a reel is provided on one side of the second coating assembly, a film is sequentially put into the first coating assembly and the second coating assembly through the reel so as to continuously coat the surfaces on both sides, a plurality of first guide rollers and a second guide roller are respectively provided in the circular oven, the plurality of first guide rollers and the second guide rollers are all spirally distributed, and the first guide rollers and the second guide rollers are symmetrically distributed in a double spiral with respect to each other.

[0008] As a further solution of the invention, the first guide roller and the second guide roller are both rotatably connected to the spiral oven, a heater is provided between each layer of the first guide roller and the second guide roller, and a plurality of heaters are provided and symmetrically distributed in a double helix.

[0009] As a further solution of the invention, the first coating component and the second coating component both include a heat-insulating box, a containing bucket is provided on the lower inner side of the heat-insulating box, a first coating roller is provided on the containing bucket of the first coating component, a second coating roller is provided on the containing bucket of the second coating component, and a third guide roller is provided in the heat-insulating box.

[0010] As a further scheme of the invention, the third guide roller is located on the right side of the first coating roller in the first coating assembly, and the third guide roller is located on the left side of the second coating roller in the second coating assembly. The film is coated with a first coating layer by the first coating roller, and the film is coated with a second coating layer by the second coating roller.

[0011] As a further solution of the invention, a fourth guide roller is provided directly above the first coating roller and the second coating roller, a load-bearing slide is provided above the fourth guide roller, and a thickness adjustment component is provided above the load-bearing slide.

[0012] As a further solution of the invention, the thickness adjustment assembly includes an L-shaped supporting plate, one side of the L-shaped supporting plate is slidably connected with an L-shaped scraper, a limit spring is provided between the upper end of the L-shaped scraper and the upper end of the L-shaped supporting plate, and the limit spring is fixedly connected to both the L-shaped scraper and the L-shaped supporting plate.

[0013] As a further solution of the invention, the L-shaped bearing plate is perpendicular to the plane where the bearing slide is located.

[0014] As a further solution of the invention, a transmission roller is provided on one side of the L-shaped scraper, and the transmission roller is rotatably connected to the heat insulation box. A first transmission tooth is fixedly connected to the side of the L-shaped scraper close to the transmission roller, and a second transmission tooth is fixedly connected to the side of the transmission roller close to the L-shaped scraper, and the first transmission tooth is meshed with the second transmission tooth.

[0015] As a further solution of the invention, a transmission rotating rod is fixedly connected to the other side of the transmission roller, the transmission rotating rod is tangent to the side surface of the transmission roller and perpendicular to the axis thereof, and a transmission worm gear ring is fixedly connected to the upper end of the transmission rotating rod, the transmission worm gear ring is coplanar with the transmission rotating rod and coaxial with the transmission roller.

[0016] As a further scheme of the invention, the transmission worm gear ring is a quarter-circle ring, the outer periphery of the transmission worm gear ring is provided with worm gear teeth, a support roller is provided on the lower middle side of the transmission worm gear ring, the transmission worm gear ring is meshed with the support roller, a transmission worm is provided on the upper middle side of the transmission worm gear ring, the transmission worm is meshed with the transmission worm gear ring for transmission, a counting support seat is installed at one end of the transmission worm, and a driving motor is installed at the other end of the transmission worm.

[0017] Beneficial effects of the present invention: (1) The material coated on both sides of the film is dried by the circular structure and inner cavity of the circular oven. With the help of the space characteristics of the circular oven, the size and floor space of the circular oven are greatly reduced under the premise of sufficient heating and drying, thereby improving the space utilization efficiency. The first guide roller and the second guide roller are symmetrically distributed in a double helix, so that the film can be wound in a bidirectional spiral and multi-layer manner in the circular oven by turning the guide rollers, so that the materials on both sides of the film can fully absorb the heat of the heater, fully remove water from the material, and improve the drying effect. The drying time of the film can be increased by increasing the number of spiral layers of the first guide roller and the second guide roller, effectively extending the drying time per unit area in a limited space, avoiding the phenomenon of material adhesion caused by insufficient drying time. At the same time, the heaters evenly distributed in the double helix make the air temperature in various places in the circular oven evenly distributed, so that the coated material absorbs heat evenly, avoiding the phenomenon of uneven temperature distribution caused by using air as a heat conductor, so that the materials in various places are quickly and evenly heated and dried, ensuring the consistency and uniformity of the drying effect, and improving the drying quality; (2) During operation, the third guide roller and the entrance end of the heat insulation box are respectively located on both sides of the heat insulation box and on the same side as the exit end. By adjusting the position of the third guide roller, the leftward and rightward winding of the film is adjusted, so that different sides of the film are respectively in contact with the first coating roller and the second coating roller. At the same time, the third guide roller and the fourth guide roller cooperate with each other to guide the winding movement trajectory of the film, so that the film is tangent to the first coating roller and the second coating roller respectively, so that the coating amount of the first coating layer and the second coating layer is kept evenly distributed. The coating sequence can be adapted and adjusted by simple conversion, and the trajectory of the film can be clearly guided, thereby further improving the coating quality; (3) During operation, a large transmission ratio transmission structure of a labor-saving lever structure is formed by the transmission rotating rod, the transmission worm gear ring and the transmission roller, which can not only reduce the power and energy consumption required by the driving motor, but also reduce the friction loss between the transmission worm and the transmission worm gear ring, thereby extending the service life of the transmission worm and the transmission worm gear ring. At the same time, the transmission ratio is improved by the transmission rotating rod, and the rotation angle of the transmission roller and the downward movement distance of the L-shaped scraper are more accurately regulated. The thickness of the first coating layer and the second coating layer can be adjusted independently and correspondingly, and the accuracy and uniformity of the thickness can be improved, thereby improving the quality of the product. The overall structure is compact and the space utilization rate is high. At the same time, the elastic force of the limit spring can be used to make the first transmission tooth and the second transmission tooth closely contact, and the position and gravity of the L-shaped scraper itself can be used to eliminate the transmission looseness caused by tolerance, thereby improving the accuracy of thickness adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a front view of the internal structure of the present invention; Figure 3 It is a schematic diagram of the conveying structure of the film of the present invention; Figure 4 This is a front view of the internal structure of the circular oven of the present invention; Figure 5 It is a front view of the internal structure of the first coating assembly of the present invention; Figure 6 It is a schematic diagram of the overall structure of the thickness adjustment component of the present invention; In the figure: 101, circular oven; 102, first coating assembly; 103, second coating assembly; 104, unwinder; 105, winder; 106, film; 201, first guide roller; 202, second guide roller; 203, heater; 301, first coating roller; 302, second coating roller; 303, first coating layer; 304, second coating layer; 401, heat insulation box; 402, loading bucket; 403, third guide roller; 404, fourth guide roller; 405, bearing slide; 501, L-shaped bearing plate; 502, L-shaped scraper; 503, limit spring; 504, first transmission tooth; 505, transmission roller; 506, second transmission tooth; 507, transmission rotating rod; 508, transmission worm ring; 509, support roller; 510, counting support seat; 511, drive motor; 512, transmission worm. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0021] See also Figure 1-6 As shown: A coating device for producing and processing lithium-ion battery separators, comprising a circular oven 101, a first coating assembly 102 is provided on one side of the circular oven 101, a second coating assembly 103 is installed in the middle of the circular oven 101, a reel 104 is provided on one side of the first coating assembly 102, and a reel 105 is provided on one side of the second coating assembly 103, a film 106 is sequentially put into the first coating assembly 102 and the second coating assembly 103 through the reel 104, so as to continuously coat the surfaces of both sides, and the circular oven 101 is provided with a first coating assembly 102 and a second coating assembly 103. A plurality of first guide rollers 201 and second guide rollers 202 are respectively arranged in the oven 101, and the plurality of first guide rollers 201 and second guide rollers 202 are all arranged in a spiral, and the first guide rollers 201 and second guide rollers 202 are arranged symmetrically in a double spiral, and the first guide rollers 201 and second guide rollers 202 are rotatably connected to the circular oven 101, and a heater 203 is arranged between each layer of the first guide rollers 201 and the second guide rollers 202, and the heaters 203 are arranged in a plurality and are arranged symmetrically in a double spiral; When the present embodiment is working, the rolled film 106 is output at a uniform speed by the unwinder 104, and the film 106 coated and dried on both sides is uniformly wound up by the cooperation of the winder 105 and the unwinder 104. The film 106 first passes through the first coating assembly 102 to coat one side thereof, and then the film 106 coated with the material on one side enters the circular oven 101, and is continuously wound and tightened in a spiral shape under the guidance of the first guide roller 201, and absorbs the heat of the heater 203 in the circular oven 101 and dries the material, and then passes through the second coating assembly 103 to coat the other side, and then enters the circular oven 101 again, and is continuously wound and unwound in a spiral shape in the opposite direction under the guidance of the second guide roller 202, and absorbs the heat of the heater 203 in the circular oven 101 again and dries the material on the other side, and then leaves the circular oven 101 and is wound up by the winder 105.

[0022] The first coating assembly 102 and the second coating assembly 103 both include a heat-insulating box 401, a loading bucket 402 is provided at the lower side of the interior of the heat-insulating box 401, a first coating roller 301 is provided on the loading bucket 402 of the first coating assembly 102, a second coating roller 302 is provided on the loading bucket 402 of the second coating assembly 103, a third guide roller 403 is provided in the heat-insulating box 401, and the third guide roller 403 is respectively located on one side of the first coating roller 301 and the other side of the second coating roller 302. In this embodiment, the third guide roller 403 is provided on the first coating roller 301 and the second coating roller 302. The third guide roller 403 is located on the right side of the first coating roller 301 in the component 102, and the third guide roller 403 is located on the left side of the second coating roller 302 in the second coating component 103. The film 106 is coated with the first coating layer 303 through the first coating roller 301, and the film 106 is coated with the second coating layer 304 through the second coating roller 302. The fourth guide roller 404 is provided directly above the first coating roller 301 and the second coating roller 302, and a bearing slide 405 is provided above the fourth guide roller 404, and a thickness adjustment component is provided above the bearing slide 405; When this embodiment is working, the position of the third guide roller 403 in the heat insulation box 401 is used to adjust different sides of the film 106, so that the two sides of the film 106 correspond to the first coating roller 301 and the second coating roller 302 respectively, and the third guide roller 403 and the fourth guide roller 404 are used to guide the film 106 in the heat insulation box 401. At the same time, the fourth guide roller 404 allows the film 106 to maintain a uniform gap with the first coating roller 301 and the second coating roller 302 respectively, so that the first coating layer 303 and the second coating layer 304 maintain a uniform thickness during coating, and the film 106 coated on one side is supported and slid by the load-bearing slide 405, so that the thickness adjustment component can adjust the thickness of the first coating layer 303 and the second coating layer 304.

[0023] The thickness adjustment component includes an L-shaped bearing plate 501, which is perpendicular to the plane where the bearing slide 405 is located. An L-shaped scraper 502 is slidably connected to one side of the L-shaped bearing plate 501. A limit spring 503 is provided between the upper end of the L-shaped scraper 502 and the upper end of the L-shaped bearing plate 501, and the limit spring 503 is fixedly connected to the L-shaped scraper 502 and the L-shaped bearing plate 501. A transmission roller 505 is provided on one side of the L-shaped scraper 502, and the transmission roller 505 is rotatably connected to the heat insulation box 401. A first transmission tooth 504 is fixedly connected to the side of the L-shaped scraper 502 close to the transmission roller 505, and a second transmission tooth 506 is fixedly connected to the side of the transmission roller 505 close to the L-shaped scraper 502. The first transmission tooth 504 is meshed with the second transmission tooth 506, and the other side of the transmission roller 505 A transmission rotating rod 507 is fixedly connected, and the transmission rotating rod 507 is tangent to the side surface of the transmission roller 505 and perpendicular to the axis line thereof. A transmission worm gear ring 508 is fixedly connected to the upper end of the transmission rotating rod 507. The transmission worm gear ring 508 is coplanar with the transmission rotating rod 507 and coaxial with the transmission roller 505. In this embodiment, the transmission worm gear ring 508 is a quarter-circular ring, and the outer periphery of the transmission worm gear ring 508 is provided with worm gear teeth. A support roller 509 is provided on the lower middle side of the transmission worm gear ring 508, and the transmission worm gear ring 508 meshes with the support roller 509. A transmission worm 512 is provided on the upper middle side of the transmission worm gear ring 508, and the transmission worm 512 meshes with the transmission worm gear ring 508 for transmission. A counting support seat 510 is installed at one end of the transmission worm gear 512, and a driving motor 511 is installed at the other end of the transmission worm gear 512; When this embodiment is working, the thickness of the first coating layer 303 and the second coating layer 304 is controlled by the L-shaped scraper 502 sliding up and down on the side of the L-shaped carrier plate 501, the second transmission tooth 506 is rotated by the transmission roller 505, and the L-shaped scraper 502 is pushed up and down by the engagement of the first transmission tooth 504, and the transmission worm ring 508 and the transmission roller 505 form a labor-saving lever structure with a large transmission ratio through the transmission rotating rod 507, the rotation of the transmission worm ring 508 is supported by the support roller 509, and the worm gear structure formed by the transmission worm 512 and the transmission worm ring 508 can accurately adjust its own rotation angle, and then accurately adjust the moving distance of the L-shaped scraper 502, and at the same time, the limit spring 503 is used to eliminate the idle transmission caused by the processing tolerance during the transmission process, and the counting support seat 510 is used to count and store the number of rotations and angles of the transmission worm 512, and at the same time support it to ensure stable meshing transmission.

[0024] When the present invention is in use, the staff dries the materials coated on the two sides of the film 106 through the circular structure and the inner cavity of the circular oven 101. With the help of the space characteristics of the circular oven 101, the size and floor space of the circular oven 101 are greatly reduced under the premise of sufficient heating and drying, thereby improving the space utilization efficiency. The first guide roller 201 and the second guide roller 202 are symmetrically distributed in a double helix, so that the film 106 can be wound in a bidirectional spiral and in multiple layers in the circular oven 101 by turning the guide rollers, so that the materials on both sides of the film 106 can fully absorb the heat of the heater 203, fully remove water from the materials, and improve the efficiency of space utilization. The invention has a high drying effect and can increase the drying time of the film 106 by increasing the number of spiral layers of the first guide roller 201 and the second guide roller 202, effectively prolonging the drying time per unit area in a limited space, avoiding the phenomenon of material adhesion caused by insufficient drying time, and at the same time, the heater 203 evenly distributed in a double spiral shape makes the air temperature in various places in the circular oven 101 evenly distributed, so that the coating material absorbs heat evenly, avoiding the phenomenon of uneven temperature distribution caused by using air as a heat conductor, so that the material in various places is quickly and evenly heated and dried, ensuring the consistency and uniformity of the drying effect, and improving the drying quality; During operation, the third guide roller 403 and the entrance end of the heat insulation box 401 are respectively located on both sides of the heat insulation box 401 and on the same side as the output end, and the leftward and rightward winding of the film 106 are adjusted by adjusting the position of the third guide roller 403, so that different sides of the film 106 are respectively fitted with the first coating roller 301 and the second coating roller 302, and at the same time, the third guide roller 403 and the fourth guide roller 404 cooperate with each other to guide the winding movement trajectory of the film 106, so that the film 106 is tangent to the first coating roller 301 and the second coating roller 302 respectively, so that the coating amount of the first coating layer 303 and the second coating layer 304 is kept uniformly distributed, and the coating sequence can be adapted and adjusted by simple conversion, and the trajectory of the film 106 can be clearly guided, thereby further improving the coating quality; During operation, a large transmission ratio transmission structure of a labor-saving lever structure is formed by the transmission rotating rod 507, the transmission worm gear ring 508 and the transmission roller 505, which can reduce the power and energy consumption required by the driving motor 511, reduce the friction loss between the transmission worm 512 and the transmission worm gear ring 508, and extend the service life of the transmission worm 512 and the transmission worm gear ring 508. At the same time, the transmission ratio is improved by the transmission rotating rod 507, and the rotation angle of the transmission roller 505 and the downward movement distance of the L-shaped scraper 502 are more accurately regulated, so that the thickness of the first coating layer 303 and the second coating layer 304 can be adjusted independently and correspondingly, and the accuracy and uniformity of the thickness can be improved, thereby improving the quality of the product. The overall structure is compact and the space utilization rate is high. At the same time, the elastic force of the limit spring 503 can be used to make the first transmission tooth 504 and the second transmission tooth 506 closely abut each other, and the position and gravity of the L-shaped scraper 502 itself can be used to eliminate the transmission looseness caused by tolerance and improve the accuracy of thickness adjustment.

[0025] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A coating device for producing and processing lithium-ion battery separators, characterized in that: A circular oven (101) is provided with a first coating assembly (102) on one side of the circular oven (101), a second coating assembly (103) is installed in the middle of the circular oven (101), a reel (104) is provided on one side of the first coating assembly (102), and a reel (105) is provided on one side of the second coating assembly (103), a film (106) is sequentially fed into the first coating assembly (102) and the second coating assembly (103) through the reel (104), so as to continuously coat the surfaces on both sides, a plurality of first guide rollers (201) and a second guide roller (202) are respectively provided in the circular oven (101), the plurality of first guide rollers (201) and the second guide rollers (202) are all distributed in a spiral, and the first guide rollers (201) and the second guide rollers (202) are symmetrically distributed in a double spiral.

2. A coating device for producing and processing lithium-ion battery separators according to claim 1, characterized in that: The first guide roller (201) and the second guide roller (202) are both rotatably connected to the circular oven (101), a heater (203) is provided between each layer of the first guide roller (201) and the second guide roller (202), and a plurality of heaters (203) are provided and are symmetrically distributed in a double helix shape.

3. A coating device for producing and processing lithium-ion battery separators according to claim 1, characterized in that: The first coating assembly (102) and the second coating assembly (103) both comprise a heat-insulating box (401); a containing bucket (402) is provided on the lower inner side of the heat-insulating box (401); a first coating roller (301) is provided on the containing bucket (402) of the first coating assembly (102); a second coating roller (302) is provided on the containing bucket (402) of the second coating assembly (103); and a third guide roller (403) is provided in the heat-insulating box (401).

4. A coating device for producing and processing lithium-ion battery separators according to claim 3, characterized in that: The third guide roller (403) is located on the right side of the first coating roller (301) in the first coating assembly (102), and the third guide roller (403) is located on the left side of the second coating roller (302) in the second coating assembly (103); the film (106) is coated with a first coating layer (303) by the first coating roller (301), and the film (106) is coated with a second coating layer (304) by the second coating roller (302).

5. A coating device for producing and processing lithium-ion battery separators according to claim 3, characterized in that: A fourth guide roller (404) is provided directly above the first coating roller (301) and the second coating roller (302), a bearing slide (405) is provided above the fourth guide roller (404), and a thickness adjustment component is provided above the bearing slide (405).

6. A coating device for producing and processing lithium-ion battery separators according to claim 5, characterized in that: The thickness adjustment component comprises an L-shaped bearing plate (501), one side of the L-shaped bearing plate (501) is slidably connected to an L-shaped scraper (502), a limit spring (503) is provided between the upper end of the L-shaped scraper (502) and the upper end of the L-shaped bearing plate (501), and the limit spring (503) is fixedly connected to both the L-shaped scraper (502) and the L-shaped bearing plate (501).

7. A coating device for producing and processing lithium-ion battery separators according to claim 6, characterized in that: The L-shaped bearing plate (501) is perpendicular to the plane where the bearing slide (405) is located.

8. A coating device for producing and processing lithium-ion battery separators according to claim 6, characterized in that: A transmission roller (505) is provided on one side of the L-shaped scraper (502); the transmission roller (505) is rotatably connected to the heat insulation box (401); a first transmission tooth (504) is fixedly connected to the side of the L-shaped scraper (502) close to the transmission roller (505); a second transmission tooth (506) is fixedly connected to the side of the transmission roller (505) close to the L-shaped scraper (502); and the first transmission tooth (504) is meshed with the second transmission tooth (506).

9. A coating device for producing and processing lithium-ion battery separators according to claim 8, characterized in that: A transmission rotating rod (507) is fixedly connected to the other side of the transmission roller (505); the transmission rotating rod (507) is tangent to the side surface of the transmission roller (505) and is perpendicular to the axis thereof; a transmission worm gear ring (508) is fixedly connected to the upper end of the transmission rotating rod (507); the transmission worm gear ring (508) is coplanar with the transmission rotating rod (507) and coaxial with the transmission roller (505).

10. A coating device for producing and processing lithium-ion battery separators according to claim 9, characterized in that: The transmission worm wheel ring (508) is a quarter-circle ring, and worm gears are arranged on the outer periphery of the transmission worm wheel ring (508). A support roller (509) is arranged on the lower middle side of the transmission worm wheel ring (508), and the transmission worm wheel ring (508) meshes with the support roller (509). A transmission worm (512) is arranged on the upper middle side of the transmission worm wheel ring (508), and the transmission worm (512) meshes with the transmission worm wheel ring (508) for transmission. A counting support seat (510) is installed on one end of the transmission worm (512), and a driving motor (511) is installed on the other end of the transmission worm (512).

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