A control composite current collector plating thickness baffle mechanism
Patent Information
- Application Number
- CN202522575634.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-04
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-04
Smart Images
Figure CN224901584U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of baffle mechanisms, specifically to a baffle mechanism for controlling the coating thickness of a composite current collector. Background Technology
[0002] Composite current collector films are a novel type of current collector material with a three-layer composite structure of "metal-polymer material film-metal". They have important applications in fields such as lithium-ion batteries. The preparation method of composite copper current collectors is usually as follows: through a roll-to-roll production process, a base layer (nickel-chromium alloy) and a conductive copper layer (usually called a copper seed layer) are magnetron sputtered onto a polymer substrate material (PET / PP / PI, etc.) to form a magnetron film. Next, the magnetron film is electroplated to thicken the metal layer to 1 μm to complete the preparation. Electroplating is carried out by setting an electroplating solution in an electroplating tank. The film is moved by electroplating clamps connected to cathodes on both sides. Titanium blue connected to anodes is set on both the top and bottom of the film. Copper ions in the cathode electroplating solution are reduced to copper atoms and deposited on the surface of the film.
[0003] In the existing composite current collector, during the water plating process, the electric field lines in the edge area of the electroplating clamp side are more concentrated because the conductive clamps on both sides serve as the current input points. This results in a significantly higher local current density than other areas. At this time, the reduction reaction at the electroplating clamp is more rapid, causing the electroplated copper layer at the electroplating clamp on both sides of the composite current collector to be thicker than the middle area. After winding, the thicker areas on both sides of the winding film will become thicker and thicker, forming annular protrusions on both sides of the winding, which can cause defects such as embossing and cracking.
[0004] Therefore, it is necessary to invent a baffle mechanism for controlling the thickness of the composite current collector coating to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a baffle mechanism for controlling the coating thickness of a composite current collector. By turning on the drive unit switch, the first transmission rod and multiple sets of external first bevel gears rotate. The rotation of the first bevel gear meshes with a second bevel gear, causing the second bevel gear to drive the internal first threaded rod to rotate. This first threaded rod pushes the lifting baffle to move up and down within the connecting seat. Simultaneously, when the retractable baffle needs to extend or retract, turning on the self-locking miniature motor switch drives the second transmission rod and multiple worm gears to rotate. The rotation of the worm gears drives the turbine, connecting rod, and internal third bevel gear to rotate. Finally, the rotation of the third bevel gear drives the fourth bevel gear and the internal second threaded rod to rotate. This causes the external telescopic baffle to extend and retract inside the bottom of the lifting baffle, thereby adjusting the extension length. This addresses the problem mentioned in the background art: in the water plating process of existing composite current collectors, the electric field lines in the edge area of the electroplating clamp side are more concentrated due to the conductive clamps on both sides serving as current input points, resulting in a significantly higher local current density than other areas. At this time, the reduction reaction at the electroplating clamp is more rapid, causing the electroplated copper layer thickness at the electroplating clamp on both sides of the composite current collector to be thicker than that in the middle area. After winding, the thicker areas on both sides of the winding film will become increasingly thicker, forming annular protrusions on both sides of the winding, causing defects such as embossing and cracking.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a baffle mechanism for controlling the thickness of a composite current collector coating, comprising a mounting seat arranged along the length of an electroplating tank, wherein multiple sets of mounting seats are symmetrically arranged in the electroplating tank along a first direction, each set of mounting seats being divided into an upper mounting seat and a lower mounting seat, the upper mounting seat and the lower mounting seat being symmetrically arranged along a second direction to support the entire baffle mechanism;
[0007] The lifting mechanism includes a lifting baffle. The upper mounting base and the lower mounting base are each provided with a lifting baffle on opposite sides. The lifting baffle can move up and down in the vertical direction.
[0008] The telescopic mechanism includes telescopic baffles. The lifting baffles of the upper mounting base and the lifting baffles of the lower mounting base are connected to telescopic baffles facing the center of the tank on both sides. The telescopic baffles can extend and retract in the lateral direction.
[0009] The lifting mechanisms at the upper mounting base and the lower mounting base are used to adjust the distance between the corresponding telescopic baffles and the membrane surface, and the telescopic mechanisms at the upper mounting base and the lower mounting base are used to adjust the telescopic length of the telescopic baffles.
[0010] Preferably, the lifting mechanism includes a drive unit, which is fixedly disposed outside the electroplating tank. The output end of the drive unit is fixedly connected to a first transmission rod. A first bevel gear is fixedly connected to the outside of the first transmission rod. A second bevel gear is meshed with one side of the first bevel gear. A first threaded rod is fixedly connected to the lower end of the second bevel gear. A lifting baffle is threadedly connected to the outside of the first threaded rod. A first isolation chamber is connected to the end of the mounting base away from the telescopic baffle. The first transmission rod, worm gear, and turbine are all located inside the first isolation chamber. The upper end of the first threaded rod is rotatably connected to the inside of the first isolation chamber, and the first threaded rod passes through the mounting base.
[0011] Preferably, a connecting seat is fixedly connected between the mounting base and the lifting baffle, and the first threaded rod is rotatably connected to the inside of the connecting seat through a bearing, and the lifting baffle is slidably connected to the connecting seat.
[0012] Preferably, a first sealing bellows is connected between the connecting seat and the lifting baffle, and the first sealing bellows is rectangular.
[0013] Preferably, the telescopic mechanism includes a self-locking miniature motor, which is fixedly mounted on the outside of the electroplating tank. A second transmission rod is fixedly connected to the output end of the self-locking miniature motor. A worm gear is fixedly connected to the outside of the second transmission rod. A turbine is meshed with one side of the worm gear. A connecting rod is fixedly connected inside the turbine. A third bevel gear is slidably connected to the lower end of the connecting rod. A fourth bevel gear is meshed with one side of the third bevel gear. A second threaded rod is fixedly connected inside the fourth bevel gear. A telescopic baffle is threadedly connected to the outside of the second threaded rod. A second isolation chamber is fixedly mounted on the outside of the mounting base near the telescopic baffle, and multiple sets of turbines and worm gears are located inside the second isolation chamber.
[0014] Preferably, the connecting rod extends through the interior of the second isolation chamber, and a protrusion is fixedly connected to the outside of the connecting rod.
[0015] Preferably, an isolation box is fixedly installed on the side of the lifting baffle away from the telescopic baffle, and the lower end of the connecting rod movably passes through the interior of the isolation box. A movable sleeve is fitted on the lower end of the connecting rod. The movable sleeve is fixedly connected to the third bevel gear. The movable sleeve and the third bevel gear are slidably connected to the surface of the connecting rod through a protrusion. The movable sleeve is rotatably connected to the isolation box, and the connecting rod is rotatably connected to the second isolation chamber.
[0016] Preferably, a second sealing bellows is connected between the second isolation chamber and the isolation box, and the second sealing bellows is sleeved on the outside of the connecting rod. The second sealing bellows is circular.
[0017] Preferably, the telescopic baffle is slidably connected to the lifting baffle, and the front end of the telescopic baffle is fixedly provided with a bending portion that bends toward the membrane surface.
[0018] Preferably, the lifting baffle is L-shaped, and a third sealing bellows is threadedly connected between the lifting baffle and the telescopic baffle, and the third sealing bellows is square in shape.
[0019] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0020] This invention, through the setting of a lifting mechanism and a telescopic mechanism, adjusts the lifting height of the lifting baffles on both sides of the film surface according to the real-time monitored thickness at the clamping point, controlling the distance between the baffles and the film surface and the extension length of the telescopic baffles. This reduces the power accumulation at the electroplating clamp, lowers the local current density from multiple directions, reduces the reduction reaction at that point, and controls the thickness of the metal coating on both sides of the composite current collector. By turning on the drive unit switch, the first transmission rod and multiple sets of external first bevel gears rotate. The rotation of the first bevel gear meshes with the second bevel gear, causing the second bevel gear to drive the internal first threaded rod to rotate. The first threaded rod pushes the lifting baffle to move up and down within the connecting seat. Simultaneously, when the telescopic baffle needs to extend or retract, the self-locking small motor switch is turned on, driving the second transmission rod and multiple worm gears to rotate. The rotation of the worm gears drives the turbine, connecting rod, and internal third bevel gear to rotate. Finally, the rotation of the third bevel gear drives the fourth bevel gear and internal second threaded rod to rotate, thereby pushing the external telescopic baffle to extend and retract inside the bottom of the lifting baffle, thus adjusting the extension length. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the overall side cross-sectional structure of this utility model.
[0024] Figure 3 This is a side view of the structural plan of this utility model;
[0025] Figure 4 This is a schematic diagram of the mounting base and lifting mechanism of this utility model;
[0026] Figure 5 This is a schematic diagram of the lifting mechanism structure of this utility model;
[0027] Figure 6 This is a schematic diagram of the connecting seat and lifting baffle structure of this utility model;
[0028] Figure 7 This is a schematic diagram of the telescopic mechanism structure of this utility model;
[0029] Figure 8 This is a schematic diagram of the turbine and worm gear structure of this utility model.
[0030] Figure 9 This is a schematic diagram of the telescopic baffle structure of this utility model.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Mounting base; 2. First isolation chamber; 3. Lifting mechanism; 301. Drive unit; 302. First transmission rod; 303. First bevel gear; 304. Second bevel gear; 305. First threaded rod; 306. Connecting seat; 307. Lifting baffle; 308. First sealing bellows; 4. Telescopic mechanism; 401. Self-locking small motor; 402. Second transmission rod; 403. Worm gear; 404. Second isolation chamber; 405. Turbine; 406. Connecting rod; 407. Protrusion; 408. Third bevel gear; 409. Second sealing bellows; 410. Isolation box; 411. Fourth bevel gear; 412. Second threaded rod; 413. Telescopic baffle; 414. Bending part; 415. Third sealing bellows. Detailed Implementation
[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0034] This utility model provides, for example Figure 1-9 The illustrated baffle mechanism for controlling the thickness of a composite current collector coating includes a mounting base 1 arranged along the length of the electroplating tank. Multiple sets of mounting bases 1 are symmetrically arranged within the electroplating tank along a first direction. Each set of mounting bases 1 consists of an upper mounting base and a lower mounting base, which are symmetrically arranged along a second direction to support the entire baffle mechanism. Preferably, four sets are symmetrically arranged within the electroplating tank along the first direction, i.e., two sets on each side along the length of the electroplating tank. The first direction is a vertical plane extending along the length of the electroplating tank and bisecting its width. The second direction is the plane in which the magnetron sputtering film moves within the electroplating tank.
[0035] The lifting mechanism 3 includes a lifting baffle 307. The lifting baffle 307 is provided on the opposite side of the upper mounting base and the lower mounting base. The lifting baffle 307 can move up and down in the vertical direction.
[0036] The telescopic mechanism 4 includes a telescopic baffle 413. The lifting baffle 307 of the upper mounting base and the lifting baffle 307 of the lower mounting base are connected to telescopic baffles 413 facing the center of the tank on opposite sides. The telescopic baffles 413 can be telescopically moved in the lateral direction.
[0037] The lifting mechanisms 3 at the upper mounting base and the lower mounting base are used to adjust the distance between the corresponding telescopic baffles 413 and the membrane surface, and the telescopic mechanisms 4 at the upper mounting base and the lower mounting base are used to adjust the telescopic length of the telescopic baffles 413.
[0038] Furthermore, such as Figure 2 and Figure 4 As shown, the lifting mechanism 3 includes a drive unit 301, which is fixedly installed on the outside of the electroplating tank. The output end of the drive unit 301 is fixedly connected to a first transmission rod 302. A first bevel gear 303 is fixedly connected to the outside of the first transmission rod 302. A second bevel gear 304 is meshed with one side of the first bevel gear 303. A first threaded rod 305 is fixedly connected to the lower end of the second bevel gear 304. A lifting baffle 307 is threadedly connected to the outside of the first threaded rod 305. A first isolation chamber 2 is connected to the end of the mounting base 1 away from the telescopic baffle 413. The first transmission rod 302, the first bevel gear 303, and the second bevel gear 304 are all located inside the first isolation chamber 2. The upper end of the first threaded rod 305 is limited to the rotational connection inside the first isolation chamber 2, and the first threaded rod 305 passes through the mounting base 1. Since the first bevel gear 303 and the second bevel gear 304 inside the lifting mechanism 3 should not be immersed in the electroplating solution, as the electroplating solution has a corrosive effect, in order to prevent the electroplating solution from corroding the first bevel gear 303 and the second bevel gear 304, a first isolation chamber 2 is set up on the outside to form a sealed protection for the entire first bevel gear 303 and the second bevel gear 304.
[0039] Preferably, such as Figure 5 and Figure 6 As shown, a connecting seat 306 is fixedly connected between the mounting base 1 and the lifting baffle 307, and the first threaded rod 305 is rotatably connected to the inside of the connecting seat 306 through a bearing. The lifting baffle 307 is slidably connected to the connecting seat 306. When the drive unit 301 drives the first transmission rod 302 and multiple sets of first bevel gears 303 to rotate, the first bevel gear 303 meshes with the second bevel gear 304 to drive the second bevel gear 304 to rotate inside the connecting seat 306, thereby pushing the lifting baffle 307 inside the connecting seat 306 to adjust its height.
[0040] Preferably, such as Figure 5As shown, a first sealing bellows 308 is connected between the connecting seat 306 and the lifting baffle 307, and the first sealing bellows 308 is rectangular. Because the lifting baffle 307 can extend and retract within the connecting seat 306, it is easy for electroplating solution to be drawn into the connecting seat 306. Therefore, the first sealing bellows 308 is fixedly sleeved on the outside of both. The first sealing bellows 308 is not only elastic, allowing it to extend and retract within the connecting seat 306 in conjunction with the lifting baffle 307, but also serves a sealing function. The outside of the first sealing bellows 308 is made of corrosion-resistant material.
[0041] Furthermore, such as Figures 7-9 As shown, the telescopic mechanism 4 includes a self-locking small motor 401, which is fixedly installed on the outside of the electroplating tank. The output end of the self-locking small motor 401 is fixedly connected to a second transmission rod 402. The outside of the second transmission rod 402 is fixedly connected to a worm gear 403. A turbine 405 is meshed with one side of the worm gear 403. A connecting rod 406 is fixedly connected inside the turbine 405. A third bevel gear 408 is slidably connected to the lower end of the connecting rod 406. A fourth bevel gear 411 is meshed with one side of the third bevel gear 408. A second threaded rod 412 is fixedly connected inside the fourth bevel gear 411. A telescopic baffle 413 is threadedly connected to the outside of the second threaded rod 412. A second isolation chamber 404 is fixedly installed on the outside of the mounting base 1 near the telescopic baffle 413. Multiple sets of worm gears 403 and turbines 405 are located inside the second isolation chamber 404. The second isolation chamber 404 is also for protecting the multiple sets of worm gears 403 and turbines 405 from being immersed in the electroplating tank, which would cause corrosion of the multiple sets of worm gears 403 and turbines 405 and thus affect normal operation.
[0042] Specifically, by turning on the drive unit 301 switch, the first transmission rod 302 and multiple sets of external first bevel gears 303 are driven to rotate. The rotation of the first bevel gears 303 meshes with the second bevel gears 304, causing the second bevel gears 304 to drive the internal first threaded rod 305 to rotate. The first threaded rod 305 pushes the lifting baffle 307 to rise and fall within the connecting seat 306 for adjustment. At the same time, when the telescopic baffle 413 needs to extend or retract, the self-locking small motor 401 switch is turned on to drive the second transmission rod 402 and multiple worm gears 403 to rotate. The rotation of the worm gears 403 drives the worm gear 405, the connecting rod 406, and the lower third bevel gear 408 to rotate. Finally, the rotation of the third bevel gear 408 drives the fourth bevel gear 411 and the internal second threaded rod 412 to rotate, thereby pushing the external telescopic baffle 413 to extend and retract within the bottom of the lifting baffle 307, thus adjusting the extension and retraction length.
[0043] Preferably, such as Figure 7 and Figure 8As shown, the connecting rod 406 passes through the interior of the second isolation chamber 404. A protrusion 407 is fixedly connected to the outside of the connecting rod 406. During the lifting and lowering process, the lifting baffle 307 will drive the rear third bevel gear 408 and fourth bevel gear 411 and the isolation box 410 to rise and fall. The protrusion 407 on the outside of the connecting rod 406 will not affect the sliding of the third bevel gear 408 and the isolation box 410 outside the connecting rod 406. When the connecting rod 406 rotates, the external protrusion 407 will drive the third bevel gear 408 to rotate inside the isolation box 410, thereby meshing and transmitting power with the fourth bevel gear 411.
[0044] Preferably, such as Figure 7 As shown, an isolation box 410 is fixedly installed on the side of the lifting baffle 307 away from the telescopic baffle 413, and the lower end of the connecting rod 406 movably passes through the interior of the isolation box 410. A movable sleeve is fitted on the lower end of the connecting rod 406, and the movable sleeve is fixedly connected to the third bevel gear 408. The movable sleeve and the third bevel gear 408 are slidably connected to the surface of the connecting rod 406 through the protrusion 407. The movable sleeve is rotatably connected to the isolation box 410, and the connecting rod 406 is rotatably connected to the second isolation chamber 404. The movable sleeve is fitted at the position that passes through the interior of the isolation box 410, so that it will not affect the normal sliding of the isolation box 410 outside the connecting rod 406. At the same time, when the connecting rod 406 and the external protrusion 407 rotate, they can drive the movable sleeve to rotate within the isolation box 410 without being obstructed.
[0045] Preferably, such as Figure 7 As shown, a second sealing bellows 409 is connected between the second isolation chamber 404 and the isolation box 410, and the second sealing bellows 409 is sleeved on the outside of the connecting rod 406. The second sealing bellows 409 is circular. In order to prevent the connecting rod 406 from being exposed to the electroplating solution and corroded, the second sealing bellows 409 is sleeved on the outside of the connecting rod 406 to protect the connecting rod 406.
[0046] Furthermore, such as Figure 9 As shown, the telescopic baffle 413 is slidably connected to the lifting baffle 307. The front end of the telescopic baffle 413 is fixedly provided with a bending part 414 that bends toward the membrane surface. The second threaded rod 412 rotates and pushes the telescopic baffle 413 to extend and retract inside the lifting baffle 307. The bending part 414 at the front end of the telescopic baffle 413 further improves the blocking effect.
[0047] Furthermore, such as Figure 9As shown, the lifting baffle 307 is L-shaped, and a third sealing bellows 415 is threadedly connected between the lifting baffle 307 and the telescopic baffle 413. The third sealing bellows 415 is square. When the telescopic baffle 413 and the lifting baffle 307 are adjusted by telescopic movement, the electroplating solution is prevented from seeping into the interior. The third sealing bellows 415 is set between the two to enhance the sealing performance.
[0048] The working principle of this utility model is as follows: The magnetron sputtering membrane is transported to the electroplating tank via a roller system. The membrane is then held in place by the electroplating clamps of the electroplating transfer mechanism for electroplating. First, four sets of mounting seats 1 are symmetrically installed in the electroplating tank, forming two sets of baffle mechanisms. The mounting seats 1 and connecting seats 306 are positioned between the magnetron sputtering membrane and the transfer mechanism that moves the electroplating clamps. Multiple sets of telescopic baffles 413 are located on the upper and lower sides between the magnetron sputtering membrane and the anode titanium basket for shielding. Next, a thickness gauge at the outlet of the electroplating tank is used to detect the coating thickness on both sides of the membrane. When the membrane thickness on both sides is relatively high, the telescopic baffles 413 of the two sets of baffle mechanisms block the electric current lines, thereby reducing the local current density and minimizing the reduction reaction at that location, thus improving the metal plating on both sides of the composite current collector. The thickness of the layer is controlled. When insufficient thickness is detected on both sides after shielding, the telescopic baffle 413 of one set of baffle mechanisms on both sides of the film needs to be retracted. This can be achieved by simply turning on the self-locking small motor 401 switch of the other set of baffle mechanisms, which drives the second transmission rod 402 and multiple worm gears 403 to rotate. The rotation of the worm gears 403 drives the turbine 405, the connecting rod 406 below, and the external protrusion 407 to rotate. The rotation of the connecting rod 406 drives the lower third bevel gear 408, which in turn drives the fourth bevel gear 411 behind the lifting baffle 307 to mesh and rotate. The fourth bevel gear 411 drives the internal second threaded rod 412 to rotate, which in turn drives the external telescopic baffle 41... 3. The telescopic baffle 413 of one set of baffle mechanisms extends out from the lifting baffle 307 and is inserted between the anode titanium basket and the magnetron sputtering film on both sides to block the coating thickness at the clamping point. Simultaneously, the distance between the telescopic baffle 413 and the film surface can be controlled to further improve the blocking effect. When the telescopic baffle 413 needs to be close to the magnetron sputtering film surface, only one set of mounting bases 1 and the drive unit 301 outside the electroplating tank need to be switched to drive the first transmission rod 302 and multiple external first bevel gears 303 to rotate. The rotation of the first bevel gears 303 drives the second bevel gear 304 and the first threaded rod 305 to rotate. The rotation of the first threaded rod 305 pushes the lifting baffle 307 and the telescopic baffle 413 at the connecting base 306. The internal lifting adjustment allows for the adjustment of the telescopic baffle 413 between the magnetron film and the anode titanium basket, controlling the distance between the telescopic baffles on both sides of the film surface and the film surface, thereby controlling the coating thickness at the electroplating clamp. The above operation steps can be monitored by a thickness gauge at the electroplating clamp outlet, thereby controlling the adjustment between the lifting baffle 307 and the telescopic baffle 413. At the same time, the results of the thickness gauge are used to control the lifting and telescopic time and frequency of multiple lifting baffles 307 and telescopic baffles 413 in real time, thereby further ensuring the uniformity of the coating thickness at the electroplating clamp and the overall thickness of the magnetron film, achieving multi-dimensional control and adjustment, reducing the occurrence of defects such as embossing and cracking during winding, and improving the yield.
[0049] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A baffle mechanism for controlling the coating thickness of a composite current collector, characterized in that: The system includes a mounting base (1) arranged along the length of the electroplating tank. Multiple sets of mounting bases (1) are symmetrically arranged in the electroplating tank along a first direction. Each set of mounting bases (1) is divided into an upper mounting base and a lower mounting base. The upper mounting base and the lower mounting base are symmetrically arranged along a second direction to support the entire baffle mechanism. The lifting mechanism (3) includes a lifting baffle (307). The upper mounting base and the lower mounting base are each provided with a lifting baffle (307) on opposite sides. The lifting baffle (307) can move up and down in the vertical direction. The telescopic mechanism (4) includes a telescopic baffle (413). The lifting baffle (307) of the upper mounting base and the lifting baffle (307) of the lower mounting base are connected to telescopic baffles (413) facing the center of the tank on both sides. The telescopic baffle (413) can be telescopically moved in the lateral direction. The lifting mechanism (3) at the upper mounting base and the lower mounting base is used to adjust the distance between the corresponding telescopic baffle (413) and the membrane surface, and the telescopic mechanism (4) at the upper mounting base and the lower mounting base is used to adjust the telescopic length of the telescopic baffle (413).
2. The baffle mechanism for controlling the coating thickness of a composite current collector according to claim 1, characterized in that: The lifting mechanism (3) includes a drive unit (301), which is fixedly installed on the outside of the electroplating tank. The output end of the drive unit (301) is fixedly connected to a first transmission rod (302). The outside of the first transmission rod (302) is fixedly connected to a first bevel gear (303). A second bevel gear (304) is meshed with one side of the first bevel gear (303). The lower end of the second bevel gear (304) is fixedly connected to a first threaded rod (305). The outside of the first threaded rod (305) is threadedly connected to a lifting baffle (307). The end of the mounting base (1) away from the telescopic baffle (413) is connected to a first isolation chamber (2). The first transmission rod (302), the first bevel gear (303), and the second bevel gear (304) are all located inside the first isolation chamber (2). The upper end of the first threaded rod (305) is limited to the rotational connection inside the first isolation chamber (2), and the first threaded rod (305) is installed through the mounting base (1).
3. The baffle mechanism for controlling the coating thickness of a composite current collector according to claim 2, characterized in that: A connecting seat (306) is fixedly connected between the mounting base (1) and the lifting baffle (307), and the first threaded rod (305) is rotatably connected to the inside of the connecting seat (306) through a bearing. The lifting baffle (307) is slidably connected to the connecting seat (306).
4. The baffle mechanism for controlling the coating thickness of a composite current collector according to claim 3, characterized in that: A first sealing bellows (308) is connected between the connecting seat (306) and the lifting baffle (307), and the first sealing bellows (308) is rectangular.
5. The baffle mechanism for controlling the coating thickness of a composite current collector according to claim 1, characterized in that: The telescopic mechanism (4) includes a self-locking miniature motor (401), which is fixedly mounted on the outside of the electroplating tank. The output end of the self-locking miniature motor (401) is fixedly connected to a second transmission rod (402). The outside of the second transmission rod (402) is fixedly connected to a worm gear (403). A turbine (405) is meshed with one side of the worm gear (403). A connecting rod (406) is fixedly connected inside the turbine (405). The lower end of the connecting rod (406) is externally slidably connected to the outside. A third bevel gear (408) is connected, and a fourth bevel gear (411) is meshed with one side of the third bevel gear (408). A second threaded rod (412) is fixedly connected inside the fourth bevel gear (411), and a telescopic baffle (413) is threadedly connected to the outside of the second threaded rod (412). A second isolation chamber (404) is fixedly installed on the outer side of the mounting base (1) near the telescopic baffle (413), and multiple sets of worm gears (403) and turbines (405) are located inside the second isolation chamber (404).
6. The baffle mechanism for controlling the coating thickness of a composite current collector according to claim 5, characterized in that: The connecting rod (406) passes through the interior of the second isolation chamber (404), and a protrusion (407) is fixedly connected to the outside of the connecting rod (406).
7. The baffle mechanism for controlling the coating thickness of a composite current collector according to claim 6, characterized in that: An isolation box (410) is fixedly installed on the side of the lifting baffle (307) away from the telescopic baffle (413), and the lower end of the connecting rod (406) is movably inserted through the interior of the isolation box (410). A movable sleeve is fitted on the lower end of the connecting rod (406), and the movable sleeve is fixedly connected to the third bevel gear (408). The movable sleeve and the third bevel gear (408) are slidably connected to the surface of the connecting rod (406) through the protrusion (407). The movable sleeve is rotatably connected to the isolation box (410), and the connecting rod (406) is rotatably connected to the second isolation chamber (404).
8. The baffle mechanism for controlling the coating thickness of a composite current collector according to claim 7, characterized in that: A second sealing bellows (409) is connected between the second isolation chamber (404) and the isolation box (410), and the second sealing bellows (409) is sleeved on the outside of the connecting rod (406). The second sealing bellows (409) is circular.
9. The baffle mechanism for controlling the coating thickness of a composite current collector according to claim 1, characterized in that: The telescopic baffle (413) is slidably connected to the lifting baffle (307), and the front end of the telescopic baffle (413) is fixedly provided with a bending portion (414) that bends toward the membrane surface.
10. The baffle mechanism for controlling the coating thickness of a composite current collector according to claim 1, characterized in that: The lifting baffle (307) is L-shaped, and a third sealing bellows (415) is threadedly connected between the lifting baffle (307) and the telescopic baffle (413), and the third sealing bellows (415) is square.