A lithium battery copper foil surface cleaning and drying integrated device

Abstract

The present application relates to copper foil cleaning technical field, especially to a kind of lithium electric copper foil surface cleaning and drying integration device, including ultrasonic cleaning tank and two first supports, two the first support is respectively installed in ultrasonic cleaning tank left side wall front and back two ends, copper foil coiled material is supported, ultrasonic cleaning tank inner chamber is equipped with rotatable transmission roller, transmission roller position is restricted copper foil in ultrasonic cleaning tank, make copper foil and cleaning solution fully contact, the ultrasonic cleaning tank upper surface is installed from left to right with several copper foil cleaning protection mechanism. From the root, avoid the problem that different medicine water cross contamination caused by carrying cleaning liquid in the process of copper foil across groove transmission, guarantee the purity and cleaning effect of cleaning liquid in each cleaning tank, at the same time, the cleaning effect of stable cleaning liquid can guarantee the cleanliness of copper foil surface, improve the adhesion compatibility of copper foil and negative active material, optimize the electrochemical performance of lithium battery, effectively prolong the cycle life of lithium battery.

Description

Technical Field

[0001] The present invention relates to the technical field of copper foil cleaning, and particularly to an integrated device for surface cleaning and drying of lithium battery copper foil. Background Art

[0002] Lithium battery copper foil is the core base material of the negative electrode of lithium batteries in the field of high-end equipment manufacturing for new energy. Its precision processing highly depends on the matching of industrial mother machines and machining centers. As the core structure of the copper foil processing production line, the surface treatment process of copper foil directly determines the processing accuracy and application performance of the finished product. With the industrial upgrading of high-end equipment clusters, lithium battery copper foil is developing towards ultra-thin and high-precision directions, posing higher requirements for the integrated processing of cleaning, cleaning, and drying of the surface treatment equipment supporting the machining center.

[0003] Currently, the post-treatment equipment adapted to the copper foil machining center has obvious shortcomings: the equipment is not integrated with the industrial mother machine processing line, the core structure has a single function, and continuous processing of cleaning, cleaning, and drying cannot be achieved; cleaning liquid is easily残留 during the transfer of copper foil in the machining center, causing cross-contamination and reducing the cleaning processing accuracy; there is a lack of an online detection core structure linked with the machining center, and scratches and defects on the copper foil surface cannot be identified in real time, affecting the yield rate of copper foil for high-end equipment; the residual liquid cleaning structure is a fixed design, unable to adapt to the flexible processing requirements of multi-specification copper foils in the machining center, with non-adjustable pressure and no wear compensation ability, severely restricting the overall processing efficiency and automation level of the industrial mother machine production line and unable to meet the production requirements of high-end equipment manufacturing in terms of scale and high precision. Summary of the Invention

[0004] In order to solve the problems raised in the above background art and meet the processing requirements of lithium battery copper foil, the present invention provides an integrated processing device with functions of cleaning, cleaning, and drying, solving the technical problems of incomplete cleaning and low drying efficiency of existing equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an integrated device for cleaning and drying the surface of lithium battery copper foil, comprising an ultrasonic cleaning chamber and two first supports. The two first supports are respectively installed at the front and rear ends of the left side wall of the ultrasonic cleaning chamber to support the copper foil roll. A rotatable transmission roller is installed inside the ultrasonic cleaning chamber, which constrains the position of the copper foil within the ultrasonic cleaning chamber, ensuring full contact between the copper foil and the cleaning solution. Several copper foil cleaning and protection mechanisms are installed from left to right on the upper surface of the ultrasonic cleaning chamber. These mechanisms not only remove cleaning solution from the copper foil surface and prevent cross-contamination between different types of cleaning solutions, but also perform visual inspection of the copper foil surface to avoid quality problems such as scratches during the cleaning process. A base plate is installed on the right side wall of the ultrasonic cleaning chamber. Second supports are installed at both the front and rear ends of the upper surface of the base plate. Two sets of opposing air outlet pipes are installed inside the second supports. The air outlet pipes are connected to a hot air blower via air pipes. When the air outlet pipes blow air in opposite directions, the copper foil surface is dried. An automatic copper foil rewinder is installed on the right side of the upper surface of the base plate. The automatic copper foil rewinder drives the roll to rotate and rewind the copper foil.

[0006] Preferably, the copper foil cleaning and protection mechanism includes a first chamber and a second chamber respectively installed at the front and rear ends of the upper surface of the ultrasonic cleaning chamber. A controller is installed on the front of the first chamber. Limiting rollers are installed at both the left and right ends between the first and second chambers. When the limiting rollers roll, they limit the movement height of the copper foil. Two guide rods are horizontally installed at the upper and lower ends of the right inner wall of the second chamber. A cleaning and scraping pressure assembly and a cleaning fluid cleaning assembly are installed sequentially from left to right between the first and second chambers. The cleaning and scraping pressure assembly adjusts the scraping pressure of the cleaning fluid cleaning assembly to clean the cleaning fluid on the surface of the copper foil; scraping the cleaning fluid off the surface of the copper foil prevents cross-contamination of the cleaning fluid and ensures the cleaning effect of the copper foil.

[0007] Preferably, the copper foil cleaning and protection mechanism further includes two vertically opposed mounting plates installed between the first and second housings. Cameras electrically connected to the controller are installed at both ends of the outer wall of the mounting plates, and the cameras capture images of the copper foil. A sliding assembly is slidably connected to the outer wall of the guide rod, and sponges are installed at both ends of the outer wall of the sliding assembly, with the sponges corresponding to the positions of the cameras. A drive assembly is installed on the right side of the inner cavity of the second housing. Each step can monitor the surface quality of the copper foil to prevent scratches on the copper foil and waste of materials.

[0008] Preferably, the cleaning fluid cleaning assembly includes two rotating shafts mounted on the upper and lower left sides between the first and second housings via bearings. Each rotating shaft has a spur gear mounted on both its front and rear ends, and the spur gears mesh with each other to make the two rotating shafts rotate in opposite directions. A clamping plate is mounted on the outer wall of each rotating shaft, and a scraper is mounted on the right end of the clamping plate. The scraper is made of silicone and scrapes off the cleaning fluid from the copper foil surface.

[0009] Preferably, the cleaning and scraping pressure assembly includes a squeezing block, a spring, and a rack, which are sequentially fitted from left to right onto the left side of the outer wall of the top guide rod. The squeezing block compresses the spring, and the spring force provides a rightward driving force to the rack, which in turn drives the spur gear to rotate. A connecting rod is installed at the left end of the squeezing block, and an insert rod is installed at the left end of the connecting rod. A rotating unit is installed at the left rear side of the second housing. When the rotating unit rotates clockwise or counterclockwise, the squeezing insert rod moves to the right or left. Adjusting the driving force of the cleaning fluid assembly can not only compensate for the wear of the scraper but also clean copper foil of different thicknesses.

[0010] Preferably, the rotating unit includes a first motor installed on the left rear side of the second housing. The first motor is electrically connected to the controller. A turntable is installed at the output end of the first motor. A groove is opened on the front of the turntable, and the insertion rod is inserted into the inner cavity of the groove.

[0011] Preferably, the chute is inclined, with its two ends close to the center and edge of the turntable, respectively.

[0012] Preferably, the driving component includes a movable frame installed on the rear side of the sliding component. The upper and lower inner walls of the movable frame are each equipped with a plurality of teeth from left to right. Positioning blocks are installed on the upper and lower inner walls of the movable frame. Two positioning blocks are located diagonally opposite each other on the movable frame. A second motor electrically connected to the controller is installed on the rear right end of the second housing. A toothed gear that meshes with the teeth is installed on the output end of the second motor. As the second motor drives the toothed gear to rotate clockwise, the toothed gear alternately drives the teeth distributed on the upper and lower sides, allowing the movable frame to move intermittently left and right. When the outer wall of the toothed gear contacts the positioning block, it positions the movable frame. The outer wall of the toothed gear has a groove. When the groove passes the positioning block, it releases the positioning of the movable frame.

[0013] Preferably, the outer wall end face of the positioning block is arc-shaped.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention uses a first motor to drive a turntable to rotate, and utilizes the cooperation between the sliding groove and the insertion rod to move the extrusion block, thereby adjusting the compression of the spring to achieve precise control of the pressure applied to the rack. Finally, it adjusts the clamping force between the upper and lower scrapers, which can flexibly adapt the clamping pressure of the cleaning solution to meet the needs of lithium battery copper foils with different thicknesses and surface roughnesses. This achieves efficient scraping of the cleaning solution on both sides of the copper foil, fundamentally avoiding the problem of cross-contamination of different chemicals caused by the copper foil carrying the cleaning solution during cross-tank transfer. It ensures the purity and cleaning effect of the cleaning solution in each cleaning tank. At the same time, the stable cleaning effect of the cleaning solution can ensure the cleanliness of the copper foil surface, improve the adhesion compatibility between the copper foil and the negative electrode active material, optimize the electrochemical performance of the lithium battery, and effectively extend the cycle life of the lithium battery.

[0015] 2. This invention uses a second motor to drive a toothed gear to rotate. The alternating meshing of the toothed gear with the upper and lower teeth drives the moving frame and sponge to move intermittently left and right. During the separation phase of the toothed gear from the teeth, the outer wall of the toothed gear engages with the positioning block, restricting the lateral movement of the moving frame. This achieves intermittent cleaning action of the sponge, periodically removing moisture and stains from the camera surface, ensuring the clarity of image acquisition on the copper foil surface. It also enables real-time online monitoring of surface quality during copper foil cleaning, promptly identifying defects such as scratches caused by contact between transmission parts during transport, preventing defective products from flowing into subsequent processes, effectively monitoring the quality status of the entire copper foil cleaning process, significantly reducing raw material loss, and improving the production yield of lithium battery copper foil.

[0016] In summary, this invention, as a core structure supporting the lithium-ion battery copper foil industrial mother machine production line in high-end equipment clusters, can seamlessly connect with copper foil processing centers to achieve integrated operation. It integrates ultrasonic cleaning, surface cleaning and liquid removal, visual inspection, hot air drying, and automatic winding functions, improving the core structure system of post-processing in processing centers. Through an adjustable-pressure flexible scraping core structure, it efficiently removes residual liquid from copper foil, eliminates cross-contamination, improves the cleaning accuracy of processing centers, adapts to the flexible processing of copper foil of various specifications on industrial mother machines, and achieves scraper wear compensation. Combined with an intermittent self-cleaning visual inspection structure, it works in conjunction with the processing center to achieve real-time monitoring of copper foil surface defects, significantly improving the yield rate of copper foil for high-end equipment. The overall device has a compact structure and a high degree of automation, optimizes the layout of industrial mother machine processing production lines, reduces operation and maintenance costs, significantly improves copper foil processing quality and processing center production efficiency, and fully meets the high-precision, large-scale industrial manufacturing needs of high-end equipment clusters. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the copper foil cleaning and protection mechanism of the present invention; Figure 3 This is a front sectional view of the second housing of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a perspective view of the cleaning fluid cleaning component of the present invention; Figure 6 This is a perspective view of the rotating unit of the present invention; Figure 7 This is a perspective view of the driving component of the present invention; Figure 8 This is a diagram showing the operating state of the driving component of the present invention.

[0018] In the diagram: 1. Ultrasonic cleaning box; 2. First support; 3. Copper foil cleaning and protection mechanism; 4. Base plate; 5. Second support; 6. Air outlet duct; 7. Automatic copper foil rewinder; 31. First housing; 32. Second housing; 33. Controller; 34. Limiting roller; 35. Guide rod; 36. Cleaning fluid cleaning assembly; 37. Cleaning scraping and pressurizing assembly; 38. Mounting plate; 39. Camera; 310. Sliding assembly; 311. Sponge; 312. Drive assembly; 361. Rotating shaft; 62. Spur gear; 363. Clamping plate; 364. Scraper; 371. Extrusion block; 372. Spring; 373. Rack; 374. Connecting rod; 375. Insert rod; 376. Rotating unit; 3761. First motor; 3762. Turntable; 3763. Slide groove; 3121. Moving frame; 3122. Tooth; 3123. Positioning block; 3124. Second motor; 3125. Gear with missing tooth; 3126. Groove; 3101. Moving seat; 3102. Support rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides a technical solution: an integrated device for cleaning and drying the surface of lithium battery copper foil, such as... Figures 1-8 As shown, the ultrasonic cleaning chamber 1 includes an ultrasonic cleaning box 1 and two first supports 2. The two first supports 2 are respectively installed at the front and rear ends of the left side wall of the ultrasonic cleaning box 1 to support the copper foil roll. The inner cavity of the ultrasonic cleaning box 1 is equipped with a rotatable transmission roller, which constrains the position of the copper foil inside the ultrasonic cleaning box 1, so that the copper foil is in full contact with the cleaning solution. Several copper foil cleaning and protection mechanisms 3 are installed on the upper surface of the ultrasonic cleaning box 1 from left to right. The copper foil cleaning and protection mechanisms 3 can not only remove the cleaning solution from the surface of the copper foil and prevent cross-contamination between different types of cleaning solutions, but also perform visual inspection on the surface of the copper foil to avoid quality problems such as scratches during the cleaning process. A base plate 4 is installed on the right side wall of the ultrasonic cleaning box 1. Second supports 5 are installed at both the front and rear ends of the upper surface of the base plate 4. Two sets of air outlet pipes 6 are installed inside the second supports 5. The air outlet pipes 6 are connected to a hot air blower through air pipes. When the air outlet pipes 6 blow air in opposite directions, the surface of the copper foil is dried. An automatic copper foil rewinder 7 is installed on the right side of the upper surface of the base plate 4. The automatic copper foil rewinder 7 drives the roll to rotate and rewind the copper foil.

[0021] The copper foil cleaning and protection mechanism 3 includes a first box 31 and a second box 32 respectively installed at the front and rear ends of the upper surface of the ultrasonic cleaning box 1. A controller 33 is installed on the front of the first box 31. The controller 33 identifies and judges quality defects such as scratches and damage on the surface of the copper foil, and realizes online monitoring of surface quality during the copper foil cleaning process. Limiting rollers 34 are installed at both the left and right ends between the first box 31 and the second box 32. When the limiting rollers 34 roll, they limit the movement height of the copper foil. Two guide rods 35 are horizontally installed at the upper and lower ends of the right inner wall of the second box 32. A cleaning scraping pressure assembly 37 and a cleaning fluid cleaning assembly 36 are installed between the first box 31 and the second box 32 from left to right. Under the condition that the limiting rollers 34 limit the copper foil, the copper foil is allowed to pass through the middle of the cleaning fluid cleaning assembly 36. The cleaning scraping pressure assembly 37 adjusts the scraping pressure of the cleaning fluid cleaning assembly 36 to clean the cleaning fluid on the surface of the copper foil.

[0022] The limiting roller 34 limits the height of the copper foil, ensuring that the copper foil is always in the optimal working position of the cleaning fluid cleaning component 36. This avoids the problem of incomplete cleaning fluid removal caused by copper foil misalignment, ensuring the cleaning effect of the cleaning fluid from the positioning level and reducing cross-contamination of the cleaning fluid from the source.

[0023] The cleaning and scraping pressure component 37 can flexibly adjust the scraping pressure of the cleaning fluid cleaning component 36, which can adapt to the cleaning needs of lithium battery copper foil with different thicknesses and surface roughness. It solves the problem of poor adaptability of traditional fixed scraping structure to copper foil specifications and has a wide range of applications.

[0024] As a preferred embodiment, the copper foil cleaning and protection mechanism 3 further includes two vertically opposed mounting plates 38 installed between the first housing 31 and the second housing 32. Cameras 39, which are electrically connected to the controller 33, are installed at both ends of the outer wall of the mounting plates 38. The cameras 39 capture images of the copper foil. A sliding component 310 is slidably connected to the outer wall of the guide rod 35. Sponge wipers 311 are installed at both ends of the outer wall of the sliding component 310. The sponge wipers 311 are positioned corresponding to the cameras 39. When the sponge wipers 311 move horizontally, they pass over the cameras 39 and clean the moisture on the surface of the cameras 39. A drive component 312 is installed on the right side of the inner cavity of the second housing 32. The drive component 312 drives the sliding component 310 to move intermittently left and right. The sponge wipers 311 remove moisture from the surface of the cameras 39 and improve the image clarity of the cameras 39.

[0025] Camera 39 enables real-time online monitoring of the surface quality of copper foil, and can promptly identify defects such as scratches caused by damage or corrosion of transmission components during transmission, preventing defective products from flowing into subsequent processes. Combined with the intermittent self-cleaning structure of sponge 311, it effectively solves the problem of moisture condensation on the lens of camera 39 in the cleaning environment, ensuring image clarity, avoiding monitoring errors caused by lens contamination, and improving the accuracy of defect identification.

[0026] By integrating multiple operational functions into a single copper foil cleaning and protection mechanism, the need for separate components and installation areas for each function is eliminated, significantly simplifying the overall structure of the device, saving floor space, and adapting to the layout requirements of continuous industrial production lines for lithium-ion battery copper foil.

[0027] As a preferred embodiment, the cleaning fluid cleaning assembly 36 further includes two rotating shafts 361 mounted on the upper and lower left sides between the first housing 31 and the second housing 32 via bearings. Spur gears 362 are mounted on both ends of the rotating shafts 361, meshing with each other to cause the two rotating shafts 361 to rotate in opposite directions. A clamping plate 363 is mounted on the outer wall of the rotating shafts 361, and a scraper 364 is mounted on the right end of the clamping plate 363. The clamping plate 363 has a groove, allowing the scraper 364 to be mounted on it using screws, enabling replacement of the scraper 364. The scraper 364 is made of silicone and scrapes off the cleaning fluid from the copper foil surface.

[0028] As a preferred embodiment, the cleaning and scraping pressure assembly 37 further includes, from left to right, a pressing block 371, a spring 372, and a rack 373, which are sequentially fitted onto the left side of the outer wall of the top guide rod 35. The pressing block 371 compresses the spring 372, and the spring 372 provides a rightward driving force for the rack 373. The rack 373 drives the spur gear 362 to rotate, ensuring that the scraper 364 is always in contact with the copper foil. A connecting rod 374 is installed at the left end of the pressing block 371, and an insertion rod 375 is installed at the left end of the connecting rod 374. The part of the insertion rod 375 that enters the slide groove 3763 is circular. The insertion rod 375 can slide smoothly within the slide groove 3763 due to its curved shape. A rotating unit 376 is installed at the rear left end of the second housing 32. When the rotating unit 376 rotates clockwise or counterclockwise, the pressing insertion rod 375 moves to the right or left.

[0029] The elastic restoring force of spring 372 is used as the basic driving force of rack 373 to replace the traditional rigid drive. This provides continuous contact pressure for scraper 364 and also has a certain buffer margin to avoid copper foil scratches caused by hard contact.

[0030] Through the meshing transmission of rack 373 and spur gear 362, the precise conversion of linear power to rotational power is achieved, the transmission loss of pressure regulation is small, and the accuracy and synchronicity of pressure adjustment of scraper 364 are guaranteed.

[0031] By controlling the rotation direction of the rotating unit 376, the contact pressure of the scraper 364 can be increased or decreased. This can adapt to lithium battery copper foil of different thicknesses as well as copper foil with different roughness after surface roughening treatment. It solves the technical drawback of the traditional fixed pressure scraping structure's poor adaptability to copper foil specifications and has a wide range of applications.

[0032] When the silicone scraper 364 shows slight wear after long-term use, the compression of the spring 372 can be increased by fine-tuning the rotating unit 376, thereby increasing the contact pressure between the scraper 364 and the copper foil. This achieves pressure compensation after wear, avoids the problem of incomplete cleaning of the cleaning fluid due to scraper wear, and ensures the cleaning effect of the cleaning fluid throughout its entire service life.

[0033] As a preferred embodiment, the rotating unit 376 further includes a first motor 3761 installed on the left rear side of the second housing 32. The first motor 3761 is electrically connected to the controller 33. A turntable 3762 is installed at the output end of the first motor 3761. A groove 3763 is opened on the front of the turntable 3762. The insert rod 375 is inserted into the inner cavity of the groove 3763. The groove 3763 is inclined, with its two ends close to the center and edge of the turntable 3762, respectively. When the turntable 3762 rotates clockwise or counterclockwise, the curved surface of the groove 3763 can press the insert rod 375 to the right or left, thereby realizing the movement of the pressing block 371 to the right or left.

[0034] As a preferred embodiment, the sliding assembly 310 further includes a movable seat 3101 sleeved on the outer wall of the guide rod 35. Support rods 3102 are installed at both the upper and lower ends of the front of the movable seat 3101. The support rods 3102 are installed with the sponge 311. The movable seat 3101 slides horizontally on the guide rod 35, giving the sponge 311 the ability to move left and right.

[0035] As a preferred embodiment, the drive assembly 312 further includes a movable frame 3121 mounted on the rear side of the movable base 3101. The upper and lower inner walls of the movable frame 3121 are each equipped with a plurality of teeth 3122 from left to right. Positioning blocks 3123 are mounted on both the upper and lower inner walls of the movable frame 3121. The outer end face of the positioning block 3123 is arc-shaped and engages with the outer wall of the toothed gear 3125, providing lateral limitation for the movable frame 3121. The two positioning blocks 3123 are located diagonally opposite each other on the movable frame 3121, and can position the movable frame 3121 for both left and right movements. (The second housing 32 is located on the rear side.) A second motor 3124 electrically connected to the controller 33 is installed at the right end. A toothed gear 3125 that meshes with the teeth 3122 is installed at the output end of the second motor 3124. As the second motor 3124 drives the toothed gear 3125 to rotate clockwise, the toothed gear 3125 alternately drives the teeth 3122 distributed vertically, allowing the moving frame 3121 to move intermittently left and right. When the outer wall of the toothed gear 3125 contacts the positioning block 3123, it positions the moving frame 3121. A groove 3126 is provided on the outer wall of the toothed gear 3125. When the groove 3126 passes the positioning block 3123, it releases the positioning of the moving frame 3121.

[0036] By utilizing the alternating meshing of the single toothed gear 3125 with the symmetrical teeth 3122 of the moving frame 3121, the left and right reciprocating movement of the moving frame 3121 is achieved through a single power source, eliminating the need for an additional reversing structure, simplifying the transmission link, and reducing the structural complexity of the equipment.

[0037] A groove 3126 is made on the outer wall of the toothed gear 3125. The groove 3126 and the positioning block 3123 cooperate to achieve precise release of the limit, making the switching between transmission and limit actions smoother and eliminating the risk of mechanical jamming.

[0038] Through the cyclical action of engagement, limiting, and unlocking, the sponge 311 is driven to move intermittently left and right, so that the sponge 311 only wipes and cleans the lens of the camera 39 during designated periods, and remains stationary during other periods. This avoids the continuous movement of the sponge 311 from obstructing the lens, and achieves uninterrupted monitoring of the copper foil surface quality while cleaning the lens, thus balancing the cleaning effect and the continuity of monitoring.

[0039] Using a single second motor 3124 as the power source, the reversing is achieved through the meshing of the toothed gear 3125 and the double toothed gear 3122. This eliminates the need for complex reversing components such as connecting rods and cylinders, reducing the number of vulnerable parts, resulting in a low equipment failure rate. It also makes subsequent assembly, debugging and maintenance more convenient, thus reducing the equipment maintenance costs for industrial production.

[0040] Working principle: Step 1: The copper foil roll is placed on the first support 2, passes through the inside of the ultrasonic cleaning box 1, and is wound up by the copper foil automatic winding device 7 to form a closed loop for copper foil cleaning. The air outlet 6 blows out hot air to dry the cleaned copper foil, realizing the integration of cleaning and drying. Step 2: The limiting roller 34 limits the copper foil during the cleaning process, raises the height of the copper foil, and allows the copper foil to pass through the scraper 364. Under the elastic force of the spring 372, the rack 373 and the spur gear 362 drive each other, and the two clamping plates 363 move closer to each other. The scraper 364 scrapes the cleaning liquid off the copper foil on both sides to prevent the copper foil from carrying the cleaning liquid into the next cleaning tank, avoids the cleaning liquid from mixing and contaminating each other, and ensures the cleaning effect. Step 3: The second motor 3124 drives the toothed gear 3125 to rotate clockwise. When the toothed gear 3125 is in motion with the top tooth 3122, it drives the moving frame 3121 to move to the right. When the toothed gear 3125 is in motion with the bottom tooth 3122, it drives the moving frame 3121 to move to the left. When the toothed gear 3125 separates from the tooth 3122, the positioning block 3123 contacts the outer wall of the toothed gear 3125 and limits the lateral movement of the moving frame 3121. The moving frame 3121 remains stationary. Therefore, the moving seat 3101 moves intermittently left and right. As the sponge 311 passes the camera 39, it periodically removes the moisture from the surface of the camera 39, allowing the camera 39 to transmit the image of the cleaned copper foil. The controller 33 identifies whether scratches are generated on the surface of the copper foil based on the image, avoiding damage to the copper foil during the cleaning process and ensuring the processing quality of the copper foil. Step four: When the first motor 3761 drives the turntable 3762 to rotate clockwise or counterclockwise, the slide groove 3763 presses the insert rod 375 to the right or left, causing the pressing block 371 to increase or decrease the compression of the spring 372. The rack 373 increases or decreases the driving force on the spur gear 362, which can not only compensate for the worn scraper 364, but also scrape off the cleaning fluid for copper foils of different thicknesses or roughness.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated device for cleaning and drying the surface of lithium-ion battery copper foil, comprising an ultrasonic cleaning chamber (1) and two first supports (2), the two first supports (2) being respectively installed at the front and rear ends of the left side wall of the ultrasonic cleaning chamber (1) to support the copper foil roll, wherein a rotatable transmission roller is installed in the inner cavity of the ultrasonic cleaning chamber (1), the transmission roller constraining the position of the copper foil within the ultrasonic cleaning chamber (1) to ensure full contact between the copper foil and the cleaning solution, characterized in that, The ultrasonic cleaning box (1) has several copper foil cleaning and protection mechanisms (3) installed from left to right on its upper surface. The copper foil cleaning and protection mechanisms (3) can not only remove the cleaning liquid from the copper foil surface and prevent different types of cleaning liquid from contaminating each other, but also perform visual inspection on the copper foil surface to avoid quality problems such as scratches during the cleaning process. The ultrasonic cleaning box (1) has a base plate (4) installed on its right side wall. The base plate (4) has a second bracket (5) installed at both ends of its upper surface. The second bracket (5) has two sets of air outlet pipes (6) installed on its inner side. The air outlet pipes (6) are connected to the hot air blower through the air pipes. When the air outlet pipes (6) blow air in opposite directions, the copper foil surface is dried. The base plate (4) has an automatic copper foil rewinder (7) installed on its upper right side. The automatic copper foil rewinder (7) drives the drum to rotate and rewind the copper foil.

2. The integrated device for cleaning and drying the surface of lithium-ion battery copper foil according to claim 1, characterized in that, The copper foil cleaning and protection mechanism (3) includes a first box (31) and a second box (32) installed at the front and rear ends of the upper surface of the ultrasonic cleaning box (1). A controller (33) is installed on the front of the first box (31). Limiting rollers (34) are installed at both the left and right ends between the first box (31) and the second box (32). When the limiting rollers (34) roll, they limit the height of the copper foil movement. Two guide rods (35) are installed horizontally at the upper and lower ends of the right inner wall of the second box (32). A cleaning scraping pressure assembly (37) and a cleaning fluid cleaning assembly (36) are installed between the first box (31) and the second box (32) from left to right. The cleaning scraping pressure assembly (37) adjusts the scraping pressure of the cleaning fluid cleaning assembly (36) to clean the cleaning fluid on the surface of the copper foil.

3. The integrated device for cleaning and drying the surface of lithium battery copper foil according to claim 2, characterized in that, The copper foil cleaning and protection mechanism (3) also includes two vertically opposite mounting plates (38) installed between the first housing (31) and the second housing (32). Cameras (39) electrically connected to the controller (33) are installed at both ends of the outer wall of the mounting plate (38). The cameras (39) capture images of the copper foil. A sliding component (310) is slidably connected to the outer wall of the guide rod (35). Sponge wipers (311) are installed at both ends of the outer wall of the sliding component (310). The sponge wipers (311) are positioned corresponding to the cameras (39). A drive component (312) is installed on the right side of the inner cavity of the second housing (32).

4. The integrated device for cleaning and drying the surface of lithium battery copper foil according to claim 3, characterized in that, The cleaning fluid cleaning assembly (36) includes two rotating shafts (361) mounted on the upper and lower left sides between the first housing (31) and the second housing (32) via bearings. Both ends of the rotating shafts (361) are equipped with spur gears (362), which mesh with each other to make the two rotating shafts (361) rotate in opposite directions. A clamping plate (363) is installed on the outer wall of the rotating shafts (361), and a scraper (364) is installed on the right end of the clamping plate (363). The scraper (364) is made of silicone and scrapes off the cleaning fluid from the copper foil surface.

5. The integrated device for cleaning and drying the surface of lithium-ion battery copper foil according to claim 4, characterized in that, The cleaning and scraping pressure assembly (37) includes a squeezing block (371), a spring (372), and a rack (373) that are sequentially fitted from left to right on the left side of the outer wall of the top guide rod (35). The squeezing block (371) compresses the spring (372), and the spring force of the spring (372) provides a rightward driving force for the rack (373), which drives the spur gear (362) to rotate. A connecting rod (374) is installed on the left end of the squeezing block (371), and an insert rod (375) is installed on the left end of the connecting rod (374). A rotating unit (376) is installed on the left side of the rear side of the second housing (32). When the rotating unit (376) rotates clockwise or counterclockwise, the squeezing insert rod (375) moves to the right or left.

6. The integrated device for cleaning and drying the surface of lithium battery copper foil according to claim 5, characterized in that, The rotating unit (376) includes a first motor (3761) installed on the left rear side of the second housing (32). The first motor (3761) is electrically connected to the controller (33). A turntable (3762) is installed at the output end of the first motor (3761). A groove (3763) is opened on the front of the turntable (3762), and the insertion rod (375) is inserted into the inner cavity of the groove (3763).

7. The integrated device for cleaning and drying the surface of lithium-ion battery copper foil according to claim 6, characterized in that, The chute (3763) is inclined, with its two ends close to the center and edge of the turntable (3762), respectively.

8. The integrated device for cleaning and drying the surface of lithium-ion battery copper foil according to claim 7, characterized in that, The drive assembly (312) includes a movable frame (3121) installed on the rear side of the sliding assembly (310). Several teeth (3122) are installed on the upper and lower inner walls of the movable frame (3121) from left to right. Positioning blocks (3123) are installed on the upper and lower inner walls of the movable frame (3121), with two positioning blocks (3123) located diagonally opposite each other. A second motor (3124) electrically connected to the controller (33) is installed on the rear right end of the second housing (32). A toothed bracket (3122) is installed at the output end of the second motor (3124) corresponding to the teeth (3122). 2) The meshing toothed gear (3125) is driven to rotate clockwise by the second motor (3124). The toothed gear (3125) alternately drives the teeth (3122) distributed on the upper and lower sides, so that the moving frame (3121) can move intermittently left and right. When the outer wall of the toothed gear (3125) contacts the positioning block (3123), it positions the moving frame (3121). The outer wall of the toothed gear (3125) has a groove (3126). When the groove (3126) passes the positioning block (3123), it releases the positioning of the moving frame (3121).

9. The integrated device for cleaning and drying the surface of lithium-ion battery copper foil according to claim 8, characterized in that, The outer end face of the positioning block (3123) is arc-shaped.

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