Battery pole piece continuous coating device and method

Abstract

The invention discloses a continuous coating device and method for a battery pole piece, and relates to the technical field of battery pole piece coating. The battery pole piece continuous coating device comprises an operation table and a coating die head, a distance adjusting mechanism is installed in a supporting frame, an angle adjusting mechanism is installed on the outer side of the supporting frame, and a cleaning mechanism is installed on the inner wall of the supporting frame. A method used by the battery pole piece continuous coating device comprises the following steps of material preparation, material supply system, coating process, drying and rolling. The distance between the two coating die heads and the angle of the coating die heads can be adjusted by arranging the distance adjusting mechanism and the angle adjusting mechanism, so that the slurry flowing and adhesion performance in the coating process can be effectively improved, the uniformity and consistency of an electrode coating are ensured, the cleaning mechanism is arranged before coating, and the cleaning efficiency is improved. Impurities and the like attached to the outer side of the battery pole piece can be cleaned, and bubbles or defects caused by uneven coating due to the impurities are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pole piece coating, and in particular to a battery pole piece continuous coating device and method. Background Art

[0002] Battery electrode coating is a key step in the battery production process, mainly to evenly coat the active material on the electrode substrate (such as aluminum foil or copper foil). This process usually involves applying the slurry (containing active materials, conductive agents and binders) to the surface of the substrate through a coating device, and then drying to form a solid electrode sheet. The quality of the coating directly affects the performance and efficiency of the battery, so it is necessary to accurately control the coating thickness, uniformity and slurry formula.

[0003] However, the existing device makes it difficult to adjust the coating die head, resulting in uneven coating, too thick or too thin coating, thereby affecting the energy density and charging and discharging efficiency of the battery, and even causing premature battery failure, reducing product reliability and market competitiveness. In response to the above problems, the inventors proposed a battery pole piece continuous coating device and method for solving the above problems. Summary of the invention

[0004] In order to solve the problem of uneven coating caused by difficulty in adjusting the coating die head, the purpose of the present invention is to provide a battery pole piece continuous coating device and method.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a battery pole piece continuous coating device, comprising an operating table and a coating die head, there are two coating die heads in total, a support frame is fixedly provided on the top of the operating table, the two coating die heads are installed on the inner side of the support frame, a spacing adjustment mechanism is installed in the support frame, the spacing adjustment mechanism includes a No. 1 rotating shaft, an angle adjustment mechanism is installed on the outer side of the support frame, the angle adjustment mechanism is connected to the spacing adjustment mechanism, a cleaning mechanism is installed on the inner wall of the support frame, two guide mechanisms are installed on the top of the operating table, a drying mechanism is installed on the top of the operating table, and the two guide mechanisms are located on both sides of the drying mechanism.

[0006] Preferably, both sides of the support frame are symmetrically provided with No. 1 sliding grooves, a No. 1 sliding block is slidably inserted in the No. 1 sliding groove, the two No. 1 sliding blocks are fixedly connected to the mounting frame on the opposite sides, the two coating die heads are respectively installed on the inner sides of the mounting frame, a No. 1 guide roller and a No. 2 guide roller are rotatably installed on the inner wall of the support frame, the No. 1 guide roller is located below the two coating die heads, and the No. 2 guide roller is located above the two coating die heads, an operating panel is fixedly provided on the outer side of the No. 1 sliding block, a limiting groove is provided in the operating panel, a No. 1 fixing frame is fixedly provided on both sides of the support frame, and two No. 1 fixing frames are rotatably inserted in the No. 1 fixing frame. A swing plate is fixedly provided on the outer side of the No. 2 rotating shaft, and fixed rods are fixedly provided on both sides of the swing plate, and the two fixed rods are movably inserted in the limit grooves respectively, and a No. 2 fixing frame is fixedly provided on the top of the support frame, and a transmission rod is rotatably inserted in the No. 2 fixing frame, and the two ends of the transmission rod are respectively connected to the two No. 2 rotating shafts through synchronous wheels and synchronous belt transmission, and a worm is rotatably connected to the No. 2 fixing frame and the support frame, and a worm wheel is fixedly provided on the outer side of the transmission rod, and the worm and the worm wheel are meshed with each other, and a No. 1 motor is fixedly provided on the top of the No. 2 fixing frame, and the output end of the No. 1 motor is inserted through the No. 2 fixing frame and fixedly connected to the worm.

[0007] Preferably, a fixed block is fixedly provided on the outer side of the two No. 1 sliding blocks on the same side, a transmission shaft is rotatably inserted in the fixed block, a No. 1 bevel gear is fixedly provided on the outer side of the transmission shaft, the two No. 1 bevel gears are mirror-distributed, a No. 2 bevel gear is fixedly provided on the outer side of the two No. 1 rotating shafts on one side of the transmission shaft, the two No. 1 bevel gears are respectively meshed with the two No. 2 bevel gears, a No. 3 fixed frame is fixedly provided on the outer side of the support frame on one side of the transmission shaft, a rotating rod is rotatably inserted in the No. 3 fixed frame, the two transmission shafts are movably inserted on the outer side of the rotating rod, symmetrically distributed square grooves are opened on the outer side of the rotating rod, the transmission shaft is movably inserted in the square groove, a No. 2 motor is installed on the outer side of the No. 3 fixed frame, the output end of the No. 2 motor is inserted through the No. 3 fixed frame and fixedly connected to the rotating rod.

[0008] The two wheels are fixedly provided with a first cleaning roller, and the second cleaning roller is rotatably mounted on the two wheels.

[0009] A method used in a battery pole piece continuous coating device comprises the following steps:

[0010] S1. Material preparation: Mix the active material, conductive agent, adhesive and solvent in proportion, and use a high-speed mixer to stir until uniform and free of bubbles;

[0011] S2, feeding system: the prepared slurry is delivered to the coating die head through a screw pump or a gear pump. A flow sensor is used to monitor the slurry flow to ensure stable feeding;

[0012] S3, coating process: using a coating die head, the slurry is evenly coated on the surface of the substrate, and the gap between the coating head and the substrate is adjusted to control the coating thickness;

[0013] S4, Drying: The coated electrode enters the drying oven, and hot air circulates at a certain temperature and flow rate to quickly evaporate the solvent in the slurry;

[0014] S5, Rewinding: The electrode sheets are arranged by the rewinding device for easy subsequent processing and use.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, by providing a spacing adjustment mechanism and an angle adjustment mechanism, the distance between the two coating die heads can be adjusted, and the angle of the coating die heads can be adjusted, thereby effectively improving the slurry flow and adhesion performance during the coating process, ensuring the uniformity and consistency of the electrode coating, and before coating, the impurities attached to the outside of the battery pole piece can be cleaned by the cleaning mechanism to avoid these impurities causing uneven coating, forming bubbles or defects, thereby affecting the performance and adhesion of the electrode;

[0017] 2. In the present invention, by arranging the No. 1 rotating shaft, the No. 2 rotating shaft, the mounting frame, the No. 1 sliding block and the operating panel and other structures to cooperate with each other, the distance between the two mounting frames can be adjusted, and the rotation angle of the mounting frame can be adjusted, so that the two coating molds can be adjusted, and then the angle and the distance can be adjusted to reduce coating defects and improve the overall performance and service life of the battery;

[0018] 3. In the present invention, by arranging a No. 1 cleaning roller, a No. 2 cleaning roller, a No. 1 scraper and a No. 2 scraper and other structures to cooperate with each other, impurities attached to the outside of the battery pole piece can be cleaned, thereby avoiding cleaning of impurities attached to the outside of the battery pole piece. During the coating process, these impurities may cause uneven coating, form bubbles or defects, thereby causing capacity decay of the battery during the charge and discharge cycle, and even causing safety hazards such as short circuit or thermal runaway. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a side schematic diagram of the overall structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 A schematic diagram of the support frame and its connection structure of the present invention;

[0024] Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0025] Figure 6 It is a cross-sectional schematic diagram of the support frame and its connection structure of the present invention;

[0026] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point C in the middle.

[0027] In the figure: 1. operating table; 110. support frame; 111. guide roller No. 1; 112. guide roller No. 2; 120. coating die head; 2. spacing adjustment mechanism; 201. sliding groove No. 1; 202. sliding block No. 1; 203. rotating shaft No. 1; 204. mounting frame; 210. operating panel; 211. limiting groove; 212. fixing frame No. 1; 213. rotating shaft No. 2; 214. swing plate; 215. fixing rod; 220. fixing frame No. 2; 221. transmission rod; 222. worm; 223. worm wheel; 224. motor No. 1; 3. angle adjustment mechanism; 301. fixing block; 302. Transmission shaft; 303, bevel gear No. 1; 304, bevel gear No. 2; 310, fixed frame No. 3; 311, rotating rod; 312, square slot; 313, motor No. 2; 4, cleaning mechanism; 401, sliding slot No. 2; 402, sliding block No. 2; 403, cleaning roller No. 1; 404, connecting frame; 405, scraper No. 1; 406, collecting box No. 1; 407, cleaning roller No. 2; 408, scraper No. 2; 409, collecting box No. 2; 410, horizontal plate; 411, threaded rod; 412, connecting plate; 413, turntable; 414, auxiliary rod; 5, guiding mechanism; 6, drying mechanism. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figure 1-7 As shown, the present invention provides a battery pole piece continuous coating device, including an operating table 1 and a coating die head 120, wherein there are two coating die heads 120, and the coating die head 120 is connected to an external screw pump or a gear pump so that the slurry is transferred to the coating die head 120, and the battery pole piece is coated by the coating die head 120. A support frame 110 is fixedly provided on the top of the operating table 1, and the support frame 110 is used for fixed support. The two coating die heads 120 are installed on the inner side of the support frame 110, and a spacing adjustment mechanism is installed in the support frame 110. 2, the spacing adjustment mechanism 2 includes a No. 1 rotating shaft 203, an angle adjustment mechanism 3 is installed on the outer side of the support frame 110, the angle adjustment mechanism 3 is connected to the spacing adjustment mechanism 2, a cleaning mechanism 4 is installed on the inner wall of the support frame 110, two guide mechanisms 5 are installed on the top of the operating table 1, a drying mechanism 6 is installed on the top of the operating table 1, the drying mechanism 6 is a hot air drying device, which can dry the outer side of the battery electrode, and the two guide mechanisms 5 are located on both sides of the drying mechanism 6, so that the guide mechanism 5 can guide the transmission of the battery electrode.

[0030] The support frame 110 has symmetrically distributed No. 1 sliding grooves 201 on both sides, and a No. 1 sliding block 202 is slidably inserted in the No. 1 sliding groove 201. The two No. 1 sliding blocks 202 are fixedly connected to the mounting frame 204 on the opposite sides. The two coating die heads 120 are respectively mounted on the inner sides of the mounting frame 204. A No. 1 guide roller 111 and a No. 2 guide roller 112 are rotatably mounted on the inner wall of the support frame 110. The No. 1 guide roller 111 is located below the two coating die heads 120, and the No. 2 guide roller 112 is located above the two coating die heads 120.

[0031] By adopting the above technical solution, the coating die head 120 can be positioned and thus the spacing thereof can be adjusted.

[0032] An operating panel 210 is fixedly provided on the outer side of the No. 1 sliding block 202, and a limiting slot 211 is provided in the operating panel 210. A No. 1 fixing frame 212 is fixedly provided on both sides of the support frame 110, and a No. 2 rotating shaft 213 is rotatably inserted in the No. 1 fixing frame 212. A swing plate 214 is fixedly provided on the outer side of the No. 2 rotating shaft 213, and fixing rods 215 are fixedly provided on both sides of the swing plate 214. The two fixing rods 215 are movably inserted in the limiting slots 211 respectively.

[0033] By adopting the above technical solution, the second rotating shaft 213 rotates to drive the two first sliding blocks 202 on the same side to move in opposite directions, thereby driving the coating die head 120 to adjust.

[0034] A No. 2 fixing frame 220 is fixedly provided at the top of the support frame 110, a transmission rod 221 is rotatably inserted in the No. 2 fixing frame 220, both ends of the transmission rod 221 are respectively connected to the two No. 2 rotating shafts 213 through synchronous wheels and synchronous belt transmission, a worm 222 is rotatably connected between the No. 2 fixing frame 220 and the support frame 110, a worm wheel 223 is fixedly provided on the outer side of the transmission rod 221, the worm 222 and the worm wheel 223 are meshed with each other, a No. 1 motor 224 is fixedly provided at the top of the No. 2 fixing frame 220, and the output end of the No. 1 motor 224 is inserted through the No. 2 fixing frame 220 and fixedly connected to the worm 222.

[0035] By adopting the above technical solution, the output end of the No. 1 motor 224 rotates to drive the two No. 2 rotating shafts 213 to rotate, so as to provide power output.

[0036] A fixed block 301 is fixedly arranged on the outer side of the two No. 1 sliding blocks 202 located on the same side, a transmission shaft 302 is rotatably inserted in the fixed block 301, a No. 1 bevel gear 303 is fixedly arranged on the outer side of the transmission shaft 302, the two No. 1 bevel gears 303 are mirror-distributed, and the two No. 1 rotating shafts 203 can be moved in opposite directions through the mirror-distributed No. 1 bevel gears 303, and a No. 2 bevel gear 304 is fixedly arranged on the outer side of the two No. 1 rotating shafts 203 located on one side of the transmission shaft 302, and the two No. 1 bevel gears 303 are respectively meshed with the two No. 2 bevel gears 304.

[0037] By adopting the above technical solution, the transmission shaft 302 rotates to drive the first rotating shaft 203 to rotate.

[0038] A third fixing frame 310 is fixedly provided on the outside of the support frame 110 on one side of the transmission shaft 302, and a rotating rod 311 is rotatably inserted in the third fixing frame 310. The two transmission shafts 302 are movably inserted on the outside of the rotating rod 311, and the outside of the rotating rod 311 is provided with symmetrically distributed square grooves 312. The transmission shaft 302 is movably inserted in the square grooves 312, so that the transmission shaft 302 can move on the outside of the rotating rod 311. At the same time, the rotation of the rotating rod 311 can drive the transmission shaft 302 to rotate. A No. 2 motor 313 is installed on the outside of the No. 3 fixing frame 310, and the output end of the No. 2 motor 313 is inserted through the No. 3 fixing frame 310 and fixedly connected to the rotating rod 311.

[0039] By adopting the above technical solution, the output end of the second motor 313 rotates to drive the transmission shaft 302 to rotate.

[0040] The support frame 110 is provided with a No. 2 sliding groove 401 on both sides, a No. 2 sliding block 402 is slidably inserted in the No. 2 sliding groove 401, a No. 1 cleaning roller 403 is rotatably provided on the opposite side of the two No. 2 sliding blocks 402, and a No. 2 cleaning roller 407 is rotatably provided in the support frame 110.

[0041] By adopting the above technical solution, the first cleaning roller 403 and the second cleaning roller 407 can clean the transmitted battery blades.

[0042] A connecting frame 404 is fixed at the bottom end of the two No. 2 sliding blocks 402, and a No. 1 scraper 405 is detachably installed in the connecting frame 404, and the No. 1 scraper 405 is fitted with the outer side of the bottom end of the No. 1 cleaning roller 403. A No. 2 scraper 408 and a No. 2 collecting box 409 are detachably installed in the support frame 110, and the No. 2 scraper 408 is fitted with the outer side of the bottom end of the No. 2 cleaning roller 407, and the No. 2 collecting box 409 is located below the No. 2 scraper 408. A No. 1 collecting box 406 is installed in the support frame 110, and the No. 1 collecting box 406 is located below the No. 1 scraper 405.

[0043] By adopting the above technical solution, the first scraper 405 and the second scraper 408 can clean the impurities attached to the outer sides of the first cleaning roller 403 and the second cleaning roller 407 respectively.

[0044] A horizontal plate 410 is fixedly provided on the inner wall of the support frame 110, a threaded rod 411 is inserted into the inner thread of the horizontal plate 410, a connecting plate 412 is rotatably provided on the end of the threaded rod 411, the connecting plate 412 is fixedly connected to the two No. 2 sliding blocks 402, and symmetrically distributed auxiliary rods 414 are fixedly provided on the outer side of the connecting plate 412, the auxiliary rods 414 are movably inserted in the horizontal plate 410, and a turntable 413 is fixedly provided on the end of the threaded rod 411 away from the connecting plate 412.

[0045] By adopting the above technical solution, the position of the No. 1 cleaning roller 403 can be adjusted by rotating the threaded rod 411, so that the outer sides of the No. 1 cleaning roller 403 and the No. 2 cleaning roller 407 are in contact with the battery electrode, thereby collecting and cleaning impurities.

[0046] A method used in a battery pole piece continuous coating device comprises the following steps:

[0047] S1. Material preparation: Mix the active material, conductive agent, adhesive and solvent in proportion, and use a high-speed mixer to stir until uniform and free of bubbles;

[0048] S2, feeding system: the prepared slurry is delivered to the coating die head through a screw pump or a gear pump. A flow sensor is used to monitor the slurry flow to ensure stable feeding;

[0049] S3, coating process: using a coating die head, the slurry is evenly coated on the surface of the substrate, and the gap between the coating head and the substrate is adjusted to control the coating thickness;

[0050] S4, Drying: The coated electrode enters the drying oven, and hot air circulates at a certain temperature and flow rate to quickly evaporate the solvent in the slurry;

[0051] S5, Rewinding: The electrode sheets are arranged by the rewinding device for easy subsequent processing and use.

[0052] Working principle: First, the battery pole piece to be coated is sequentially wound around the outer side of the No. 1 guide roller 111 between the No. 1 cleaning roller 403 and the No. 2 cleaning roller 407, and between the two coating dies 120, and then wound around the outer side of the No. 2 guide roller 112, and then transmitted to the guide mechanism 5 and the drying mechanism 6, and finally connected to the external winding mechanism, and the raw material coated on the outer side is transmitted to the coating die 120 through a screw pump or a gear pump. Then, the turntable 413 is rotated, so that the rotation of the turntable 413 drives the threaded rod 411 to rotate, and the rotation of the threaded rod 411 drives the connecting plate 412 to move horizontally with the assistance of the auxiliary rod 414, and the movement of the connecting plate 412 drives the two No. 2 sliding blocks 402 to slide in the No. 2 sliding groove 401, and the No. 2 sliding block 402 moves The first cleaning roller 403 is driven to move, so that the first cleaning roller 403 and the second cleaning roller 407 are attached to the two sides of the battery electrode. When the battery electrode is in the process of transmission, the first cleaning roller 403 and the second cleaning roller 407 can adsorb and clean the impurities attached to the outside of the battery electrode, and the first scraper 405 and the second scraper 408 can clean the impurities attached to the outside of the first cleaning roller 403 and the second cleaning roller 407 respectively, so that the impurities attached to the outside of the battery electrode can be cleaned, thereby avoiding cleaning the impurities attached to the outside of the battery electrode. These impurities may cause uneven coating, form bubbles or defects during the coating process, resulting in capacity decay of the battery during the charge and discharge cycle, and even cause safety hazards, such as short circuit or thermal runaway.

[0053] When it is necessary to adjust the spacing or angle of the coating die 120, the No. 1 motor 224 is started at this time, so that the No. 1 motor 224 starts to work, and the output end of the No. 1 motor 224 rotates to drive the worm 222 to rotate, and the rotation of the worm 222 drives the mutually meshing worm gear 223 to rotate, and the rotation of the worm gear 223 drives the transmission rod 221 to rotate. The transmission rod 221 rotates through the synchronous wheel and the synchronous belt to rotate the two No. 2 rotating shafts 213, and the rotation of the No. 2 rotating shaft 213 drives the swing plate 214 to rotate, and the rotation of the swing plate 214 drives the operating plate 210 to move by sliding in the limit groove 211 through the fixed rod 215, and the movement of the operating plate 210 drives the No. 1 sliding block 202 to slide in the No. 1 sliding groove 201, thereby driving the mounting frame 204 and the coating die 120 to move in opposite directions, so that the spacing between the two coating die heads 120 can be adjusted. When the angle of the coating die 120 needs to be adjusted, When adjusting, first start the No. 2 motor 313 so that the No. 2 motor 313 starts working, and the output end of the No. 2 motor 313 rotates to drive the rotating rod 311 to rotate, and the rotating rod 311 rotates to drive the two transmission shafts 302 to rotate, and the transmission shaft 302 rotates to drive the two No. 1 bevel gears 303 to rotate, and the No. 1 bevel gear 303 rotates to drive the mutually meshing No. 2 bevel gear 304 to rotate, and the No. 1 rotating shaft 203 rotates, and the two No. 1 rotating shafts 203 rotate to drive the mounting frame 204 to rotate in opposite directions, so that the angle of the two coating dies 120 can be adjusted, and then the angle and spacing can be adjusted to reduce coating defects and improve the overall performance and service life of the battery. After the coating is completed, the battery electrode can be transmitted through the guide mechanism 5, and the battery electrode can be dried through the drying mechanism 6, and finally the winding mechanism is used to wind it up.

[0054] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A battery electrode continuous coating device, comprising an operating table (1) and a coating die head (120), characterized in that: There are two coating die heads (120) in total. A support frame (110) is fixedly provided at the top of the operating platform (1). The two coating die heads (120) are mounted on the inner side of the support frame (110). A spacing adjustment mechanism (2) is mounted inside the support frame (110). The spacing adjustment mechanism (2) comprises a first rotating shaft (203). An angle adjustment mechanism (3) is mounted on the outer side of the support frame (110). The angle adjustment mechanism (3) is connected to the spacing adjustment mechanism (2). A cleaning mechanism (4) is mounted on the inner wall of the support frame (110). Two guide mechanisms (5) are mounted on the top of the operating platform (1). A drying mechanism (6) is mounted on the top of the operating platform (1). The two guide mechanisms (5) are located on both sides of the drying mechanism (6).

2. A battery pole piece continuous coating device as claimed in claim 1, characterized in that: Both sides of the support frame (110) are symmetrically provided with No. 1 sliding grooves (201), and No. 1 sliding blocks (202) are slidably inserted in the No. 1 sliding grooves (201). The two No. 1 sliding blocks (202) are fixedly connected to the mounting frames (204) on opposite sides, and the two coating die heads (120) are respectively mounted on the inner sides of the mounting frames (204). The inner wall of the support frame (110) is rotatably provided with a No. 1 guide roller (111) and a No. 2 guide roller (112), and the No. 1 guide roller (111) is located below the two coating die heads (120), and the No. 2 guide roller (112) is located above the two coating die heads (120).

3. A battery pole piece continuous coating device as claimed in claim 2, characterized in that: An operating plate (210) is fixedly provided on the outer side of the first sliding block (202), a limiting groove (211) is provided in the operating plate (210), a first fixing frame (212) is fixedly provided on both sides of the support frame (110), a second rotating shaft (213) is rotatably inserted in the first fixing frame (212), a swing plate (214) is fixedly provided on the outer side of the second rotating shaft (213), fixing rods (215) are fixedly provided on both sides of the swing plate (214), and the two fixing rods (215) are movably inserted in the limiting grooves (211) respectively.

4. A battery pole piece continuous coating device as claimed in claim 3, characterized in that: A second fixing frame (220) is fixedly provided at the top of the support frame (110), a transmission rod (221) is rotatably inserted in the second fixing frame (220), two ends of the transmission rod (221) are respectively connected to two second rotating shafts (213) through synchronous wheels and synchronous belt transmission, a worm (222) is rotatably connected between the second fixing frame (220) and the support frame (110), a worm wheel (223) is fixedly provided on the outer side of the transmission rod (221), the worm (222) and the worm wheel (223) are meshed with each other, a first motor (224) is fixedly provided at the top of the second fixing frame (220), and an output end of the first motor (224) is inserted through the second fixing frame (220) and is fixedly connected to the worm (222).

5. A battery pole piece continuous coating device as claimed in claim 4, characterized in that: A fixed block (301) is fixedly arranged outside the two first sliding blocks (202) located on the same side, a transmission shaft (302) is rotatably inserted in the fixed block (301), a first bevel gear (303) is fixedly arranged outside the transmission shaft (302), the two first bevel gears (303) are mirror-imaged, and a second bevel gear (304) is fixedly arranged outside the two first rotating shafts (203) located on one side of the transmission shaft (302), and the two first bevel gears (303) are respectively meshed with the two second bevel gears (304).

6. A battery pole piece continuous coating device as claimed in claim 5, characterized in that: A third fixing frame (310) is fixedly arranged outside the support frame (110) at one side of the transmission shaft (302), a rotating rod (311) is rotatably inserted in the third fixing frame (310), the two transmission shafts (302) are movably inserted outside the rotating rod (311), the rotating rod (311) is provided with symmetrically distributed square grooves (312), the transmission shafts (302) are movably inserted in the square grooves (312), the third fixing frame (310) is installed with a second motor (313), the output end of the second motor (313) is inserted through the third fixing frame (310) and is fixedly connected to the rotating rod (311).

7. A battery pole piece continuous coating device as claimed in claim 1, characterized in that: A No. 2 sliding groove (401) is provided on both sides of the support frame (110), a No. 2 sliding block (402) is slidably inserted in the No. 2 sliding groove (401), a No. 1 cleaning roller (403) is rotatably provided on the opposite side of the two No. 2 sliding blocks (402), and a No. 2 cleaning roller (407) is rotatably provided in the support frame (110).

8. A battery pole piece continuous coating device as claimed in claim 7, characterized in that: A connecting frame (404) is fixedly provided at the bottom end of the two No. 2 sliding blocks (402), and a No. 1 scraper (405) is detachably installed in the connecting frame (404), and the No. 1 scraper (405) is fitted with the outer side of the bottom end of the No. 1 cleaning roller (403). A No. 2 scraper (408) and a No. 2 collecting box 4 (09) are detachably installed in the support frame (110), and the No. 2 scraper (408) is fitted with the outer side of the bottom end of the No. 2 cleaning roller (407), and the No. 2 collecting box (409) is located below the No. 2 scraper (408). A No. 1 collecting box (406) is installed in the support frame (110), and the No. 1 collecting box (406) is located below the No. 1 scraper (405).

9. A battery pole piece continuous coating device as claimed in claim 8, characterized in that: A transverse plate (410) is fixedly provided on the inner wall of the support frame (110), a threaded rod (411) is inserted into the inner thread of the transverse plate (410), a connecting plate (412) is rotatably provided at the end of the threaded rod (411), the connecting plate (412) is fixedly connected to two No. 2 sliding blocks (402), symmetrically distributed auxiliary rods (414) are fixedly provided on the outer side of the connecting plate (412), the auxiliary rods (414) are movably inserted into the transverse plate (410), and a rotating disk (413) is fixedly provided at one end of the threaded rod (411) away from the connecting plate (412).

10. A method used in a battery pole piece continuous coating device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Material preparation: Mix the active material, conductive agent, adhesive and solvent in proportion, and use a high-speed mixer to stir until uniform and free of bubbles; S2, feeding system: the prepared slurry is delivered to the coating die head through a screw pump or a gear pump. A flow sensor is used to monitor the slurry flow to ensure stable feeding; S3, coating process: using a coating die head, the slurry is evenly coated on the surface of the substrate, and the gap between the coating head and the substrate is adjusted to control the coating thickness; S4, Drying: The coated electrode enters the drying oven, and hot air circulates at a certain temperature and flow rate to quickly evaporate the solvent in the slurry; S5, Rewinding: The electrode sheets are arranged by the rewinding device for easy subsequent processing and use.

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