Height control device for splash point on surface of composite current collector

Abstract

The invention relates to the field of composite current collector surface treatment, in particular to a composite current collector surface splash point height control device which comprises a supporting assembly. According to the invention, by setting the height of the laser emitter, setting different slits according to products with different thicknesses and the heights of splashing points required by customers, and cutting off the splashing points higher than the height of the laser by using the laser emitted by the laser emitter, the height of the splashing points on the film surface after passing through the laser is smaller than the height of the slits during coating; the laser device not only can ensure that the height of the splashing points meets the requirements of customers and processes, but also can reduce the phenomenon of belt breakage and reduce product waste, so as to solve the problems that in the prior art, due to the fact that the large splashing points on the film surface are too many, the aluminum film is scraped off by a scraper every time the large splashing points pass through, and the production efficiency is high. And after being scraped off, the film needs to be penetrated and rolled again, so that the problem of waste of finished film products in the process of removing large splashing points by using a scraper is often caused.

Description

Technical Field

[0001] This invention relates to the field of composite current collector surface treatment, and more specifically to a device for controlling the height of splash points on the surface of a composite current collector. Background Technology

[0002] Composite current collectors primarily employ a "metal-polymer material-metal" sandwich structure. The composite aluminum current collector is deposited onto the substrate surface via a single vapor deposition process. Vacuum deposition is typically a continuous deposition process for the entire roll of product within a vacuum chamber, after which the chamber is opened and the roll is removed. The vacuum chamber operates under vacuum conditions, using a wire feeding mechanism and an evaporation boat. The evaporation boat is generally boat-shaped with a groove in the center. Under vacuum, a direct current is used to heat these evaporation boats to approximately 1700°C. Aluminum or other metal wires are guided to the preheated evaporation boat near its center. The melted wires form liquid metal within the groove. This liquid metal vaporizes under the heating of the evaporation boat, forming metal vapor that adheres to the substrate surface, thus preparing the composite aluminum current collector.

[0003] The second step of the rolling process has a significant defect. Due to the working characteristics of the rolling press and the product characteristics of the fluid in the laminating machine, there are aluminum splashes of varying sizes and heights on the surface of the fluid. During the rolling process, the pressure will make the height of the splashes uniform, and the surface of the composite current collector film will become flat. However, some splashes will "slip through the net" or, due to their large size, remain very high after rolling. These splashes will be rolled into the finished film and then transferred to the next process. These large splashes that are not rolled out will be blocked by the doctor blade during the coating stage in the battery cell industry, which can seriously lead to film breakage and affect production.

[0004] To prevent large splashes that are not pressed out from flowing to downstream customers, a slit scraper device is added after rolling. The function of this slit device is to remove large splashes that are still attached to the film surface after rolling, thus preventing them from flowing to downstream customers. This scraper device can adjust the height of the scraper slit through a cylinder and a wedge to adapt to the slit requirements of different base film thicknesses and coating thicknesses. Each product has a different slit height to meet the requirements of customers for different products. This slit scraper does indeed effectively remove large splatter points during actual production, keeping defective products within the production line and preventing them from flowing to downstream processes. However, due to the excessive number of large splatter points on the film surface, the aluminum film is often torn by the scraper each time a large splatter point passes by. After being torn, the film needs to be re-rolled, resulting in wasted finished film during the process of removing large splatter points. This issue needs to be addressed to solve the problem of large splatter points flowing downstream and causing unnecessary waste.

[0005] Therefore, it is necessary to invent a device for controlling the height of the splash point on the surface of a composite current collector to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a device for controlling the height of spatter points on the surface of a composite current collector. By setting the height of the laser emitter, different slits are set according to the different thicknesses of the product and the customer's required spatter point height. The laser emitted by the laser emitter cuts off spatter points higher than the laser height, so that the height of the spatter points on the film surface after laser treatment is lower than the height of the slit scraper during coating. This achieves the effect of controlling the overall height of the spatter points on the film surface. This laser device can ensure that the height of the spatter points meets the customer and process requirements, and can also reduce the occurrence of tape breakage and reduce product waste. It solves the problem in the prior art that due to too many large spatter points on the film surface, the aluminum film is cut by the scraper every time a large spatter point passes by. After being cut, the film needs to be re-rolled. Therefore, the process of removing large spatter points with a scraper often results in waste of finished film.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a device for controlling the height of splash points on the surface of a composite current collector, comprising: Support final assembly; A transmission component, which is disposed within the support assembly, is used for conveying the composite current collector; A membrane leveling component is disposed on the conveying path of the composite current collector and near the beginning of the conveying path. The membrane leveling component is used to roll the composite current collector. A laser leveling component is disposed on the side of the membrane leveling component away from the starting end of the conveying path. The laser leveling component is used to cut the spatter points on the surface of the composite current collector, thereby reducing the height of the spatter points. The laser leveling assembly includes two movable bases that can move relative to each other. Each movable base is equipped with a laser rangefinder, which is used to measure the distance between itself and the membrane surface. The movable base is equipped with a laser adjustment assembly, which includes a movable adjustment plate. A laser emitter is connected to the adjustment plate. The laser beam of the laser emitter is parallel to the composite current collector membrane surface. The laser emitter adjusts its height relative to the composite current collector membrane surface as the adjustment plate moves.

[0008] This invention sets the height of the laser emitter to different thicknesses of products and the customer's required splatter height. The laser emitted by the laser emitter cuts off splatter points that are higher than the laser height, so that the splatter height on the film surface after laser treatment is lower than the slit height during coating. This achieves the effect of controlling the overall splatter height on the film surface. This laser device can ensure that the splatter height meets the customer and process requirements, and can also reduce the occurrence of tape breakage and reduce product waste.

[0009] In a preferred embodiment of the present invention, the laser leveling assembly includes mounting seats symmetrically arranged on both sides of the support assembly, two movable bases that can move relative to each other are arranged between the symmetrically arranged mounting seats, and a rotating roller is arranged between the two mounting seats. The rotating roller is used to convey the composite current collector. A cleaning component is arranged on the side of the rotating roller that is not in contact with the composite current collector. The cleaning component is slidably connected to the laser leveling assembly. The rotating roller cooperates with the laser leveling assembly. The laser emitter is located on the side of the rotating roller that is in contact with the composite current collector.

[0010] In a preferred embodiment of the present invention, the support assembly includes two upright plates, the bottom of which is connected to a base plate. A protective shell is installed on the outer side of each upright plate. The transmission assembly is connected between the two upright plates and includes a take-up roller and multiple guide rollers. The guide rollers are rotatably connected to the upright plates. A take-up motor is installed above the base plate. A drive wheel is installed at the output end of the take-up motor. A driven wheel is driven to the end of the take-up roller. A transmission belt is sleeved between the driven wheel and the drive wheel. An unwinding roller is provided on the side of the support assembly away from the take-up roller.

[0011] In a preferred embodiment of the present invention, the membrane leveling assembly includes a fixed pressure roller and a movable pressure roller. The fixed pressure roller is rotatably connected to a vertical plate. An electric push rod is installed above the vertical plate. A pressure plate is fixedly connected to the output end of the electric push rod. The pressure plate is slidably connected to the vertical plate. A damper is provided below the pressure plate. The damper is rotatably connected to the movable pressure roller. A movable component is connected between the damper and the pressure plate.

[0012] As a preferred embodiment of the present invention, the membrane leveling assembly further includes two sets of adjustment assemblies, which are located on both sides of the laser leveling assembly. Each set includes two electric push rods, the output end of which is hinged to a lifting block. The interior of the upright plate is provided with a limiting groove that matches the lifting block, and the inner side of the lifting block is connected to a tension roller.

[0013] In a preferred embodiment of the present invention, the mounting bases are respectively installed inside the upright plate, a protective plate is installed on the outer side of the movable base, a top plate is provided between the two mounting bases, and side plates are installed on both sides of the top plate.

[0014] In a preferred embodiment of the present invention, the laser adjustment assembly includes a precision motor. The precision motor is mounted on the outer side of the movable base. A drive gear is fixedly connected to the output end of the precision motor via a coupling. A driven gear is meshed with the side of the drive gear. A lead screw is fixedly connected to the inner side of the driven gear. The lead screw is rotatably connected to the movable base. A threaded block is threaded to the outer side of the lead screw. A wedge block is fixedly connected to the side of the threaded block. An adjustment plate is provided on the side of the wedge block. The adjustment plate has an internal opening... The wedge-shaped groove has a slot on its top wall that engages with a wedge block. A butterfly spring is provided on the side of the threaded block and is sleeved on the outside of the lead screw. One side of the butterfly spring abuts against the threaded block, and the other side abuts against the inner wall of the movable base. An adjustment frame is slidably connected to the inner side of the movable base. A limiting rail is provided on the outer side of the adjustment frame and is slidably connected to the movable base. A lifting groove is provided on the inner side of the movable base. A connecting rod is fixedly connected to the side of the adjustment plate, and a laser emitter is connected to the connecting rod.

[0015] As a preferred embodiment of the present invention, a sliding seat is fixedly connected to the bottom of the movable base, an clearance groove is provided inside the sliding seat, a limit slider is fixedly connected to the bottom of the sliding seat, the rotating roller includes a shaft core, a roller is fixedly connected to the outside of the shaft core, a bearing is provided on the outside of the shaft core, the bearing is fixedly connected to the mounting base, and the clearance groove cooperates with the roller.

[0016] In a preferred embodiment of the present invention, the cleaning component includes a limiting seat, both ends of which are fixedly connected to sleeves, which are sleeved with a shaft core. The bottom of the limiting seat is provided with a limiting slide rail that cooperates with a limiting slider. The top of the limiting seat is provided with a concave strip, and a spring is fixedly connected inside the concave strip. A micro-motion plate is fixedly connected to the top of the spring. A pull strip is slidably arranged on the top of the micro-motion plate. A soft brush is fixedly connected to the top of the pull strip. Multiple absorption grooves are provided on both sides of the soft brush at the top of the pull strip.

[0017] As a preferred embodiment of the present invention, one end of the pull strip is inclined and has a mounting hole. The mounting hole is conical. A handle is fixedly connected to the end of the pull strip away from the mounting hole. An air tube is installed inside the mounting base near the mounting hole through the handle and extends into the limiting seat.

[0018] Compared with the prior art, the technical effects and advantages provided by the present invention in the above technical solution are as follows: With its dual design of setting the laser parallel to the film surface and adjustable slit height, this device can precisely set the cutting threshold according to the different thicknesses of composite current collectors and the customer's customized splatter height standards. It only removes splatter points that are higher than the slit height. The parallel laser to the film surface avoids problems such as film burns and substrate damage caused by oblique laser beams. This ensures that the height of splatter points on the film surface is uniformly controlled within the process threshold after processing, effectively improving the surface flatness of the composite current collector. Compared with the traditional scraper processing method, this device has no substrate loss and no flying debris residue. The position detected by the laser rangefinder is activated by a precision motor. The precision motor drives the driven gear to rotate through the driving gear. The driven gear drives the threaded block to slide through the lead screw. The threaded block is slidably connected to the movable base. The threaded block drives the wedge block to move. Due to the wedge-shaped fit between the wedge block and the wedge groove, the adjusting plate and the adjusting frame can be raised and lowered. The disc spring has a column rod inside. The column rod is fixedly connected to the adjusting plate and inserted into the adjusting frame. The disc spring can provide continuous thrust to the adjusting plate to eliminate thread gaps, reduce errors, and form a closed loop. Even if the membrane surface is deformed, the laser can also be used for adjustment to prevent damage to the membrane surface. The tension roller is equipped with a pressure sensor to detect the tension of the composite current collector. When a difference in pressure is detected on both sides of the composite current collector, the tension on both sides is different, which can easily cause unevenness on the surface of the composite current collector membrane. At this time, by activating the extension and retraction of the electric actuator, the lifting block is raised and lowered, which allows the lifting block to slide within the limit groove, thereby adjusting the position of the tension roller. This facilitates the flattening adjustment of the composite current collector membrane surface and prevents unevenness on both sides of the composite current collector membrane from causing membrane surface undulations, which would be difficult for laser flattening. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the upright plate and the membrane flattening assembly of the present invention; Figure 3 This is a schematic diagram of the connection structure between the support assembly and the transmission component of the present invention; Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 5 This is a schematic diagram of the overall structure of the laser leveling component of the present invention; Figure 6This is an exploded structural diagram of the laser leveling component of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 This is a schematic diagram showing the distribution structure of the laser leveling component, rotating roller, and cleaning component of the present invention; Figure 9 This is a partial structural diagram of the laser leveling component of the present invention; Figure 10 This is a schematic cross-sectional view of the movable base structure of the present invention; Figure 11 This is a schematic diagram of the connection structure between the adjustment frame and the adjustment plate of the present invention; Figure 12 This is a schematic diagram of the connection structure between the wedge block and the adjusting plate of the present invention; Figure 13 This is a schematic diagram of the internal structure of the cleaning component of the present invention; Figure 14 This is a partial structural diagram of the cleaning component of the present invention; Figure 15 This is a partial structural diagram of the membrane smoothing component of the present invention; Figure 16 This is a schematic diagram of the connection structure between the shaft core and the sleeve of the present invention.

[0021] Explanation of reference numerals in the attached figures: 001. Support assembly; 002. Transmission assembly; 003. Membrane leveling assembly; 004. Laser leveling assembly; 005. Rotating roller; 006. Cleaning components; 101. Vertical plate; 102. Base plate; 103. Protective shell; 201. Take-up roll; 202. Take-up motor; 203. Guide roll; 204. Drive belt; 205. Driven pulley; 206. Drive pulley; 207. Unwind roll; 301. Fixed pressure roller; 302. Movable pressure roller; 303. Electric actuator one; 304. Pressure plate; 305. Damper; 306. Movable part; 307. Electric actuator two; 308. Lifting block; 309. Limiting groove; 310. Tensioning roller; 311. Connecting roller; 401. Mounting base; 402. Top plate; 403. Side plate; 404. Movable base; 405. Protective plate; 406. Sliding seat; 407. Precision motor; 408. Drive gear; 409. Driven gear; 410. Lead screw; 411. Threaded block; 412. Wedge block; 413. Adjusting plate; 414. Wedge groove; 415. Slot; 416. Disc spring; 417. Adjusting frame; 418. Limiting rail; 419. Lifting groove; 420. Laser rangefinder; 421. Connecting rod; 422. Laser emitter; 423. Clearance groove; 424. Limiting slider; 501. Shaft core; 502. Roller; 503. Bearing; 601. Limit seat; 602. Sleeve; 603. Concave strip; 604. Spring; 605. Micro-motion plate; 606. Pull strip; 607. Soft brush; 608. Absorption groove; 609. Mounting hole; 610. Air pipe; 611. Handle; 612. Electric actuator three. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] This invention provides, for example Figure 1-14 The composite current collector surface splash point height control device shown includes a support assembly 001; The transmission component 002 is disposed within the support assembly 001 and is used for conveying the composite current collector; Membrane leveling component 003 is set on the conveying path of the composite current collector and close to the beginning of the conveying path. Membrane leveling component 003 is used to roll the composite current collector. Laser leveling component 004 is located on the side of the membrane leveling component 003 away from the starting end of the conveying path. Laser leveling component 004 is used to cut the splash points on the surface of the composite current collector, thereby reducing the height of the splash points. The laser leveling component 004 includes two movable bases 404 that can move relative to each other. Each movable base 404 is equipped with a laser rangefinder 420, which is used to measure the distance between itself and the membrane surface. The movable base 404 is equipped with a laser adjustment component, which includes a movable adjustment plate 413. A laser emitter 422 is connected to the adjustment plate 413. The laser beam of the laser emitter 422 is parallel to the composite current collector membrane surface. The laser emitter 422 adjusts its height relative to the composite current collector membrane surface as the adjustment plate 413 moves.

[0024] This invention sets the height of the laser emitter 422 to different thicknesses of products and the customer's required splatter height. The laser emitted by the laser emitter 422 cuts off splatter points higher than the laser height, so that the splatter height on the film surface after laser treatment is less than the slit height during coating. This achieves the effect of controlling the overall splatter height on the film surface. This laser device can ensure that the splatter height meets the customer and process requirements, and can also reduce the occurrence of tape breakage and reduce product waste.

[0025] During use, the composite current collector is stably transported by the transmission component 002, and the composite current collector is stably adjusted by the membrane leveling component 003. Online cleaning of the roller 502 can prevent impurities from causing unevenness in the composite current collector, thus providing further protection. The unwinding roller 207 unwinds and rolls the composite current collector between the fixed pressure roller 301 and the movable pressure roller 302 to roll and flatten the splashing protrusions, making the membrane surface flat. After rolling, the tensioning roller 310 is used for tension adjustment, and the height of the composite current collector membrane surface is adjusted by the laser adjustment component. The large splashing points still attached to the membrane surface after rolling are removed by the laser emitter 422.

[0026] Furthermore, the laser leveling component 004 includes mounting seats 401 symmetrically arranged on both sides of the support assembly 001. Two movable bases 404 that can move relative to each other are arranged between the symmetrically arranged mounting seats 401. A rotating roller 005 is arranged between the two mounting seats 401. The rotating roller 005 is used to convey the composite current collector. A cleaning component 006 is arranged on the side of the rotating roller 005 that is not in contact with the composite current collector. The cleaning component 006 is slidably connected to the laser leveling component 004. The rotating roller 005 cooperates with the laser leveling component 004. The laser emitter 422 is located on the side of the rotating roller 005 that is in contact with the composite current collector.

[0027] The movable base 404 can be moved to bring the laser emitter 422 closer to the film surface for more precise cutting. At the same time, the rotating roller 005 cooperates with the laser leveling component 004. The laser emitter 422 is used to cut the spatter points on the surface of the composite current collector on the rotating roller 005. With the support of the rotating roller 005, the composite current collector is in a stable conveying state. The shaking of the composite current collector during the transmission process will not affect the cutting accuracy or even damage the film surface. In addition, the cleaning component 006 is used to clean the roller 502 online, which can prevent impurities from causing unevenness of the composite current collector and further protect it.

[0028] As a further optimization of the present invention, the support assembly 001 includes two upright plates 101, the bottom of which is connected to a base plate 102. Protective shells 103 are installed on the outer sides of each upright plate 101. A transmission assembly 002 is connected between the two upright plates 101 and includes a take-up roller 201 and multiple guide rollers 203. The guide rollers 203 are rotatably connected to the upright plates 101. A take-up motor 202 is installed above the base plate 102. A drive wheel 206 is installed at the output end of the take-up motor 202. A driven wheel 205 is drivenly connected to the end of the take-up roller 201. A transmission belt 204 is sleeved between the driven wheel 205 and the drive wheel 206. An unwind roller 207 is provided on the side of the support assembly 001 away from the take-up roller 201.

[0029] By starting the take-up motor 202, the drive wheel 206 drives the driven wheel 205 to rotate via the transmission belt 204. The driven wheel 205 drives the take-up roller 201 to take up the composite current collector, while the unwind roller 207 unwinds the current collector.

[0030] Furthermore, the membrane leveling assembly 003 includes a fixed pressure roller 301 and a movable pressure roller 302. The fixed pressure roller 301 is rotatably connected to the vertical plate 101. An electric push rod 303 is installed above the vertical plate 101. A pressure plate 304 is fixedly connected to the output end of the electric push rod 303. The pressure plate 304 is slidably connected to the vertical plate 101. A damper 305 is provided below the pressure plate 304. The damper 305 is rotatably connected to the movable pressure roller 302. A movable part 306 is connected between the damper 305 and the pressure plate 304.

[0031] By activating the electric actuator 303, the pressure plate 304 is lowered, pressing down on the damper 305. This causes the movable pressure roller 302 to approach the fixed pressure roller 301, thereby squeezing the composite current collector and rolling the splashed protrusions on the surface of the composite current collector to flatten the film surface. This initial flattening facilitates subsequent laser removal by reducing the load. A movable part 306 is provided between the damper 305 and the pressure plate 304 to maintain a certain squeezing force on the damper 305. A pressure sensor is provided on the side of the fixed pressure roller 301 to detect the pressure and prevent excessive pressure from damaging the composite current collector or insufficient pressure from causing insufficient rolling.

[0032] In the above structure, the film leveling component 003 also includes two sets of adjustment components. The two sets of adjustment components are located on both sides of the laser leveling component 004. Each set includes two electric push rods 307 that are hinged to the vertical plate 101. The output end of the electric push rod 307 is hinged to a lifting block 308. The vertical plate 101 has a limiting groove 309 that matches the lifting block 308. The inner side of the lifting block 308 is connected to a tension roller 310 through a hinge block. The outer side of one of the tension rollers 310 is rotatably connected to a sleeve roller 311. The sleeve roller 311 is slidably sleeved with the other tension roller 310. The lifting block 308 and the sleeve roller 311 can be used for correction, which can improve the stability of the film surface, reduce film wrinkles, and improve the cutting effect.

[0033] Before use, adjust the angle of the laser emitter 422 to ensure that the laser emitter 422 is parallel to the shaft core 501. Then fix the laser emitter 422. The tension roller 310 is equipped with a pressure sensor 2 to detect the tension of the composite current collector. When the pressure on both sides of the composite current collector is different, the tension on both sides is different, which can easily cause unevenness of the composite current collector film surface. At this time, by activating the extension and retraction of the electric push rod 307, the lifting block 308 is driven to rise and fall, so that the lifting block 308 slides in the limiting groove 309, thereby adjusting the position of the tension roller 310. This facilitates the flat adjustment of the composite current collector film surface and prevents unevenness of the film surface caused by different tension on both sides of the composite current collector, which would result in uneven laser cutting.

[0034] In a further optimization of the above embodiment, the mounting base 401 is fixedly installed inside the upright plate 101. The position of the membrane surface is detected by the edge position sensor, and then the electric push rod 612 is activated according to the position of the membrane surface. The electric push rod 612 pushes the movable base 404 inward, so that the laser emitter 422 is close to the position of the membrane surface, so that the laser rangefinder 420 can detect the position of the membrane surface and adjust the position of the laser emitter 422. A protective plate 405 is installed on the outside of the movable base 404. A top plate 402 is provided between the two mounting bases 401. Side plates 403 are installed on both sides of the top plate 402. The top plate 402 and the side plates 403 are fixedly connected to the mounting base 401 to protect the position of the laser, prevent external impurities from entering, and prevent light interference.

[0035] The laser adjustment assembly includes a precision motor 407. The precision motor 407 is mounted on the outer side of the movable base 404. The output end of the precision motor 407 is fixedly connected to a drive gear 408 via a coupling. A driven gear 409 is meshed with the side of the drive gear 408. A lead screw 410 is fixedly connected to the inner side of the driven gear 409. The lead screw 410 is rotatably connected to the movable base 404. A threaded block 411 is threadedly connected to the outer side of the lead screw 410. A wedge block 412 is fixedly connected to the side of the threaded block 411. An adjusting plate 413 is provided on the side of the wedge block 412. A wedge groove 414 is formed inside the adjusting plate 413. The top wall is provided with a slot 415, which cooperates with the wedge block 412. A butterfly spring 416 is provided on the side of the threaded block 411. The butterfly spring 416 is sleeved on the outside of the lead screw 410. One side of the butterfly spring 416 abuts against the threaded block 411, and the other side abuts against the inner wall of the movable base 404. An adjustment frame 417 is slidably connected to the inner side of the movable base 404. A limiting rail 418 is provided on the outer side of the adjustment frame 417 and slidably connected to the movable base 404. A lifting groove 419 is provided on the inner side of the movable base 404. A connecting rod 421 is fixedly connected to the side of the adjustment plate 413. The connecting rod 421 is connected to the laser emitter 422.

[0036] Based on the position detected by the laser rangefinder 420, the precision motor 407 is activated. The precision motor 407 drives the driven gear 409 to rotate via the driving gear 408. The driven gear 409 drives the threaded block 411 to slide via the lead screw 410. The threaded block 411 is slidably connected to the movable base 404. The threaded block 411 drives the wedge block 412 to move. Due to the wedge-shaped fit between the wedge block 412 and the wedge groove 414, the adjusting plate 413 and the adjusting frame 417 can be raised and lowered. The disc spring 416 has a columnar rod inside. The columnar rod is fixedly connected to the adjusting plate 413 and inserted into the adjusting frame 417. The disc spring 416 can provide a continuous thrust to the adjusting plate 413 to eliminate thread clearance and reduce error.

[0037] Furthermore, a sliding seat 406 is fixedly connected to the bottom of the movable base 404. An clearance groove 423 is provided inside the sliding seat 406. A limit slider 424 is fixedly connected to the bottom of the sliding seat 406. The rotating roller 005 includes a shaft core 501. A roller 502 is fixedly connected to the outer side of the shaft core 501. A bearing 503 is provided on the outer side of the shaft core 501. The bearing 503 is fixedly connected to the mounting base 401. The clearance groove 423 cooperates with the roller 502. The limit slider 424... 4. The laser leveling component 004 is slidably connected to the limiting slide rail, so that the laser leveling component 004 is connected to the cleaning component 006, and the rotating roller 005 is connected to the cleaning component 006. This allows the laser leveling component 004 and the rotating roller 005 to cooperate, so that even if the rotating roller 005 shakes, the laser leveling component 004 will move with the rotating roller 005. This prevents the slight shaking caused by the bearing 503 clearance when the roller 502 rotates, which would cause instability of the rotating roller 005, and further improves the stability of the device.

[0038] Based on the film height detected by the laser rangefinder 420, the height of the laser emitter 422 is set. According to the different thicknesses of the products and the spatter height required by the customer, different heights of the laser and the composite current collector film are set. The laser emitted by the laser emitter 422 cuts off the spatter points that are higher than the laser height, so that the height of the spatter points on the film surface after laser treatment is less than the height of the slit doctor blade during coating. This achieves the effect of controlling the overall height of the spatter points on the film surface. This laser device can not only ensure that the height of the spatter points meets the customer and process requirements, but also reduce the occurrence of tape breakage and reduce product waste.

[0039] As a further optimization of the present invention, the cleaning component 006 includes a limiting seat 601. The bottom of the limiting seat 601 is equipped with an electric actuator 612 connected to the sliding seat 406. An edge position sensor is provided on the side of the movable base 404 near the unwinding roller 207 to detect the position of the composite current collector. When the electric actuator 612 drives the movable base 404 to move, the movable base 404 drives the edge position sensor to move. When the edge position sensor detects the edge position of the film surface, the movable base 404 stops moving.

[0040] Both ends of the limiting seat 601 are fixedly connected to sleeves 602, which are sleeved with the shaft core 501. A pin is fixedly connected inside the sleeve 602. A concave ring is formed on the outer side of the shaft core 501, and the pin is located inside the concave ring. The surface of the concave ring is coated with an anti-wear coating to reduce friction and improve wear resistance. A limiting cavity is formed inside the mounting seat 401, and a limiting block that mates with the limiting cavity is provided on the outer side of the sleeve 602. A gap is reserved between the limiting block and the limiting cavity to allow for slight movement of the shaft core 501. The space for the movement of the 602 sleeve is used to limit the movement of the cleaning component 006, preventing it from rotating with the rotation of the shaft core 501. When the shaft core 501 moves slightly, the ejector pin moves accordingly. The limiting seat 601 can slightly wiggle inside the limiting cavity. Even if the limiting seat 601 rotates slightly outside the shaft core 501, due to the certain wrap angle between the composite current collector and the shaft core 501, the slight rotation does not affect the laser emitter 422's removal of the composite current collector's splash points. Therefore, the entire limiting seat 601 will drive the entire movable base. 404 moves with the shaft core 501, thus fundamentally solving the cutting height error caused by the wobbling of the shaft core 501. The bottom of the limiting seat 601 is provided with a limiting slide rail that cooperates with the limiting slider 424. The top of the limiting seat 601 is provided with a concave strip 603. A spring 604 is fixedly connected inside the concave strip 603. A micro-motion plate 605 is fixedly connected to the top of the spring 604. A pull strip 606 is slidably provided on the top of the micro-motion plate 605. Under the action of the spring 604, the micro-motion plate 605 is easily pushed out, so that the soft brush 607 and the roller 504 can easily move together. 02 For a better fit, a soft brush 607 is fixedly connected to the top of the pull strip 606. Multiple absorption grooves 608 are opened on both sides of the soft brush 607 at the top of the pull strip 606. One end of the pull strip 606 is inclined and has a mounting hole 609. The mounting hole 609 is conical. A handle 611 is fixedly connected to the end of the pull strip 606 away from the mounting hole 609. The handle 611 passes through the mounting base 401. An air tube 610 is installed inside the mounting base 401 on the side near the mounting hole 609. The air tube 610 extends into the limit seat 601.

[0041] When the roller 502 rotates, it contacts the soft brush 607, which wipes the roller 502 to facilitate cleaning and prevent impurities from adhering to the roller 502 and causing uneven film surface. To prevent the dust wiped off the roller 502 from re-adhering to the roller 502, the dust is sucked up by suction. The air pipe 610 and the pull bar 606 are connected through the mounting hole 609, and then the absorption groove 608 slightly sucks up the air near the soft brush 607. The soft brush 607 and the pull bar 606 can be disassembled for cleaning. The user pulls the handle 611 to detach the pull bar 606. The inclined angle of the end of the pull bar 606 makes it easy to insert it above the micro-motion plate 605 and then push it in for installation. The mounting hole 609 is flared to facilitate insertion with the air pipe 610.

[0042] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. 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 foregoing 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 composite current collector surface splash point height control device, characterized by, The utility model relates to a kind of laser leveling assembly and supporting assembly, including: Supporting assembly (001); Transmission assembly (002) is arranged in supporting assembly (001), for the transport of composite current collector; Membrane body flattening assembly (003) is arranged on the transport path of composite current collector and is close to the starting end of transport path, and the membrane body flattening assembly (003) is used to roll composite current collector; Laser leveling assembly (004) is arranged on the side of membrane body flattening assembly (003) away from the starting end of transport path, and the laser leveling assembly (004) is used to cut the splashing point of the surface of composite current collector to reduce the height of splashing point; Wherein the laser leveling assembly (004) includes two movable base (404) that can be moved relative to each other, laser range finder (420) is mounted on the movable base (404), the laser range finder (420) is used to measure the distance between membrane surface, laser adjustment assembly is arranged in the movable base (404), the laser adjustment assembly includes movable adjusting plate (413), laser emitter (422) is connected on the adjusting plate (413), the light beam of the laser emitter (422) is parallel to the membrane surface of composite current collector, the laser emitter (422) moves along with adjusting plate (413) to adjust the height of the membrane surface of composite current collector.

2. A composite current collector surface splash point height control device according to claim 1, wherein: The laser leveling assembly (004) includes mounting seat (401) that is symmetrically arranged on both sides of supporting assembly (001), two movable base (404) that can be moved relative to each other are arranged between the symmetrically arranged mounting seat (401), rotating roller (005) is arranged between two mounting seat (401), and the rotating roller (005) is used to transport composite current collector, cleaning piece (006) is arranged on the side of the rotating roller (005) not being attached to composite current collector, the cleaning piece (006) is slidably connected with the laser leveling assembly (004), the rotating roller (005) cooperates with the laser leveling assembly (004), and the laser emitter (422) is located on the side of the rotating roller (005) being attached to composite current collector.

3. A composite current collector surface splash point height control device according to claim 2, wherein: The supporting assembly (001) includes two vertical plates (101), the bottom of two vertical plates (101) is connected with bottom plate (102), the outer side of vertical plate (101) is mounted with protective shell (103), transmission assembly (002) is connected between two vertical plates (101), and includes winding roller (201) and multiple over rollers (203), the over roller (203) is rotatably connected with vertical plate (101), winding motor (202) is mounted above bottom plate (102), the output end of winding motor (202) is mounted with driving wheel (206), the end of winding roller (201) is drivingly connected with driven wheel (205), transmission belt (204) is sleeved between driving wheel (206) and driven wheel (205), and unwinding roller (207) is arranged on the side of supporting assembly (001) away from winding roller (201).

4. A composite current collector surface splash point height control device according to claim 3, wherein: The film body flattening assembly (003) comprises a fixed compression roller (301) and a movable compression roller (302), the fixed compression roller (301) is rotationally connected with a vertical plate (101), an electric push rod one (303) is installed above the vertical plate (101), a pressing plate (304) is fixedly connected with an output end of the electric push rod one (303), the pressing plate (304) is slidingly connected with the vertical plate (101), a damper (305) is arranged below the pressing plate (304), the damper (305) is rotationally connected with the movable compression roller (302), and a movable piece (306) is connected between the damper (305) and the pressing plate (304).

5. A composite current collector surface splash point height control device according to claim 4, wherein: The film body flattening assembly (003) further comprises two groups of adjusting assemblies, the two groups of adjusting assemblies are respectively located on two sides of the laser flattening assembly (004) and each comprises two electric push rod twos (307), hinged lifting blocks (308) are connected with output ends of the electric push rod twos (307), the vertical plate (101) is internally provided with limiting grooves (309) matched with the lifting blocks (308), and the lifting blocks (308) are internally connected with tension rollers (310).

6. A composite current collector surface splash point height control device according to claim 2, wherein: The mounting seats (401) are respectively mounted in the vertical plate (101), the outer side of the movable base (404) is provided with a protection plate (405), a top plate (402) is arranged between the two mounting seats (401), the two sides of the top plate (402) are both provided with side plates (403), and the top plate (402) and the side plates (403) are fixedly connected with the mounting seats (401).

7. A composite current collector surface splash point height control device according to claim 6, wherein: The laser adjusting assembly comprises a precision motor (407), the precision motor (407) is installed on the outer side of the movable base (404), the output end of the precision motor (407) is fixedly connected with a driving gear (408) through a shaft coupling, the side of the driving gear (408) is engagedly connected with a driven gear (409), the inner side of the driven gear (409) is fixedly connected with a lead screw (410), the lead screw (410) is rotatably connected with the movable base (404), the outer side of the lead screw (410) is threadedly connected with a threaded block (411), the side of the threaded block (411) is fixedly connected with a wedge block (412), the side of the wedge block (412) is provided with an adjusting plate (413), the inside of the adjusting plate (413) is provided with a wedge-shaped groove (414), the top wall of the wedge-shaped groove (414) is provided with a clamping groove (415), the clamping groove (415) is matched with the wedge block (412), the side of the threaded block (411) is provided with a butterfly spring (416), the butterfly spring (416) is sleeved on the outer side of the lead screw (410), one side of the butterfly spring (416) abuts against the threaded block (411), the other side abuts against the inner wall of the movable base (404), the inner side of the movable base (404) is slidably connected with an adjusting frame (417), the outer side of the adjusting frame (417) is provided with a limiting rail (418) slidably connected with the movable base (404), the inner side of the movable base (404) is provided with a lifting groove (419), the side of the adjusting plate (413) is fixedly connected with a connecting rod (421), and the connecting rod (421) is connected with a laser emitter (422).

8. A composite current collector surface splash point height control device according to claim 7, wherein: The bottom of the movable base (404) is fixedly connected with a sliding seat (406), the inside of the sliding seat (406) is provided with an avoiding groove (423), the bottom of the sliding seat (406) is fixedly connected with a limiting sliding block (424), the rotating roller (005) comprises a shaft core (501), the outer side of the shaft core (501) is fixedly connected with a roller (502), the outer side of the shaft core (501) is provided with a bearing (503), the bearing (503) is fixedly connected with the mounting seat (401), and the avoiding groove (423) is matched with the roller (502).

9. A composite current collector surface splash point height control device according to claim 7, wherein: Said cleaning piece (006) includes a limit seat (601), both ends of the limit seat (601) are fixedly connected with sleeves (602), the sleeve (602) is sleeved with the shaft core (501), the bottom of the limit seat (601) is provided with a limit sliding rail matched with the limit sliding block (424), the top of the limit seat (601) is provided with a concave strip (603), the inside of the concave strip (603) is fixedly connected with a spring (604), the top of the spring (604) is fixedly connected with a micro-motion plate (605), the top of the micro-motion plate (605) is slidably provided with a pull strip (606), the top of the pull strip (606) is fixedly connected with a soft brush (607), a plurality of absorption grooves (608) are formed on both sides of the top of the pull strip (606) and the soft brush (607).

10. A composite current collector surface splash point height control device according to claim 9, wherein: One end of the pull strip (606) is obliquely arranged and provided with a mounting hole (609), the mounting hole (609) is conically arranged, one end of the pull strip (606) away from the mounting hole (609) is fixedly connected with a handle (611), the handle (611) penetrates the inside of the mounting seat (401) on one side of the mounting seat (401) close to the mounting hole (609) and is provided with an air pipe (610), and the air pipe (610) extends to the inside of the limit seat (601).

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