A battery aluminum foil production oil removal device

Abstract

The application discloses a battery aluminum foil production oil removal device, and relates to the technical field of aluminum foil production and preparation; the device comprises a liquid medicine cleaning mechanism and a circulating sponge wiping assembly; after the aluminum foil is cleaned by the liquid medicine cleaning mechanism, the aluminum foil enters the circulating sponge wiping assembly; the assembly comprises a machine box and two closed-loop transmission assemblies arranged in the machine box; a plurality of sponge wiping units are arranged on each closed-loop transmission assembly at equal intervals; the sponge wiping units are circulated with the closed-loop transmission assemblies and sequentially pass through a wiping station, a water squeezing station and a drying station; the sponge wiping unit comprises a strip-shaped groove box, a squeezing plate, a drawing rod and a long strip sponge block; the circulating wiping of the plurality of sponge wiping units overcomes the limitation of traditional sponge roller line contact, realizes the squeezing dehydration and hot air drying of the sponge, effectively avoids secondary pollution and guarantees the cleaning effect during long-time continuous operation.

Description

Technical Field

[0001] This invention relates to the field of aluminum foil production and preparation technology, and specifically discloses an oil removal device for battery aluminum foil production. Background Technology

[0002] Aluminum foil is a core material for the positive electrode current collector in lithium-ion batteries, and its surface quality directly affects the battery's charge-discharge performance, internal resistance consistency, and safety. During the aluminum foil rolling process, rolling lubricating oil is sprayed onto the roll surface for lubrication and cooling. However, rolling oil residue inevitably remains on the aluminum foil surface after rolling. If not thoroughly removed, it will lead to poor bonding between the active material and the aluminum foil substrate during subsequent coating, and may even cause safety hazards such as battery short circuits.

[0003] Currently, there are some existing cleaning devices for aluminum foil or etched foil. For example, utility model patent application number 202421788536.X discloses a cleaning device for etched foil. This device first soaks and cleans the etched foil in a first soaking tank, and then passes the soaked and cleaned etched foil through the gap between the first and second sponge rollers. The sponge rollers are used to squeeze and rub both sides of the etched foil to remove residual cleaning liquid, oil stains and stubborn impurities from the surface of the etched foil.

[0004] However, the existing cleaning devices still have the following shortcomings in practical applications: First, during continuous wiping, the sponge roller will continuously absorb the cleaning liquid and the stripped oil, and its internal pores will quickly become saturated. Although the existing technology can set a squeezing roller to squeeze and dehydrate the sponge roller online, the squeezing effect of the squeezing roller is limited, making it difficult to make the sponge roller reach a relatively dry state. This results in insufficient liquid absorption capacity of the sponge roller during subsequent wiping, and a decrease in wiping effect. Second, when using the squeezing roller for online squeezing and dehydration, the waste liquid (containing cleaning liquid and oil) squeezed out from the sponge roller often flows down or splashes along the surface of the sponge roller, which is very easy to drip back onto the foil surface, causing secondary pollution. Third, the sponge roller and the foil surface are in line contact, and the contact area between the two is very limited. For stubborn oil stains that remain on the foil surface after cleaning, the single line contact method is not enough to provide sufficient mechanical force to effectively remove them, resulting in incomplete cleaning effect and difficulty in meeting the stringent requirements for surface cleanliness of battery aluminum foil.

[0005] Based on this, this application proposes a novel degreasing device for battery aluminum foil production, which simultaneously achieves efficient wiping of the cleaned aluminum foil, maintains the sponge's liquid absorption capacity for a long time, and avoids secondary pollution, thereby meeting the urgent need for high-quality battery aluminum foil production. Summary of the Invention

[0006] The purpose of this invention is to provide an oil removal device for battery aluminum foil production, so as to solve the technical problems and shortcomings of existing cleaning devices in the process of cleaning and removing oil from aluminum foil or etched foil.

[0007] This invention is achieved through the following technical solution:

[0008] An oil removal device for battery aluminum foil production includes a chemical cleaning mechanism for cleaning aluminum foil, and a circulating sponge wiping assembly is provided downstream of the chemical cleaning mechanism for wiping the upper and lower surfaces of the cleaned aluminum foil.

[0009] The circulating sponge wiping assembly includes a chassis and two closed-loop transmission components disposed in the chassis. The two closed-loop transmission components are arranged in a mirror image symmetrically about the aluminum foil that passes through them. Each closed-loop transmission component is provided with multiple sponge wiping units at equal intervals. The sponge wiping units move cyclically as the closed-loop transmission components operate, passing through the wiping station, the squeezing station and the drying station in sequence.

[0010] The sponge wiping unit includes a strip-shaped groove box, a pressing plate slidably disposed in the strip-shaped groove box, a pull rod connected to the pressing plate, and a long strip sponge block housed in the strip-shaped groove box. A reset elastic element is connected between the pressing plate and the strip-shaped groove box. The pull rod passes through the interior of the long strip sponge block and extends out of the side end of the strip-shaped groove box.

[0011] The circulating sponge wiping assembly also includes a water squeezing drive mechanism. When the sponge wiping unit moves to the water squeezing station, the water squeezing drive mechanism drives the pull rod to move axially so that the extrusion plate gradually squeezes the long sponge block to achieve the squeezing and dehydration of the sponge block.

[0012] As a further provision of the above solution, the dewatering drive mechanism includes a rack fixedly mounted on the inner wall of the casing, an adjusting ring rotatably mounted on the side end of the strip-shaped slot box, and a spiral guide groove formed on the outer circumferential surface of the pull rod; the outer circumferential surface of the adjusting ring is provided with a gear portion that meshes with the rack, and a sliding column is fixedly mounted on its inner circumferential surface; one end of the pull rod extends concentrically out of the adjusting ring, and the sliding column on the adjusting ring slides in cooperation with the spiral guide groove;

[0013] When the sponge wiping unit moves to the squeezing station, the adjustment ring rotates through the meshing transmission of the gear and rack. During the rotation of the adjustment ring, the pull rod moves axially through the cooperation of the sliding column and the spiral guide groove, so that the extrusion plate gradually squeezes the long sponge block.

[0014] As a further feature of the above solution, the wiping surface of the long strip of sponge extends a certain distance beyond the opening of the strip-shaped groove box; the bottom wall of the strip-shaped groove box is provided with drainage holes to discharge the liquid squeezed out from the long strip of sponge.

[0015] As a further feature of the above solution, the pull rod has a hollow structure, and an air outlet is provided on the rod body inside the strip-shaped slot box.

[0016] It also includes a hot air supply unit, which includes a hot air blower and an air nozzle. The air nozzle is connected to the air outlet of the hot air blower. When the sponge wiping unit moves to the drying station, the air nozzle is connected to the port of the pull rod to introduce hot air into the interior of the pull rod.

[0017] As a further provision of the above scheme, the hot air supply unit also includes a main air supply pipe, a gas delivery pipe, a horizontal slide rail, a sliding seat, and a telescopic drive component; the air outlet of the hot air blower is connected to the main air supply pipe, one end of the gas delivery pipe is connected to the main air supply pipe, and the other end is connected to the air nozzle; the air nozzle is disposed on the sliding seat and slides horizontally along the horizontal slide rail with the sliding seat; the telescopic drive component is disposed on the sliding seat and is used to drive the air nozzle to insert into or pull out of the pull rod.

[0018] As a further provision of the above scheme, the chassis is provided with a positioning stop plate for positioning the sliding seat, and the sliding seat is connected with a reset spring for moving the sliding seat to one side of the positioning stop plate to reset; the positioning stop plate is provided with a sensor for detecting the horizontal position of the sliding seat, and the sensor is electrically connected to a control box, and the control box controls the extension or retraction of the telescopic drive component according to the horizontal position of the sliding seat.

[0019] As a further provision of the above scheme, the closed-loop transmission assembly includes axles rotatably mounted at both ends of the chassis, a transmission power device for driving the axles to rotate, transmission wheels fixedly mounted at both ends of the axles, and a conveying transmission component sleeved between two opposing transmission wheels; the strip-shaped slot box is transversely mounted on the front and rear conveying transmission components in an orientation perpendicular to the aluminum foil traction direction, and the length of the strip-shaped slot box is greater than the width of the aluminum foil.

[0020] As a further provision of the above solution, the liquid cleaning mechanism includes a cleaning tank, an inlet roller disposed at the upper end of the inlet side of the cleaning tank, a first outlet roller disposed at the upper end of the outlet side of the cleaning tank, and a pressure roller disposed between the inlet roller and the first outlet roller.

[0021] As a further provision of the above solution, the liquid cleaning mechanism also includes a pair of brush rollers rotatably disposed in the cleaning tank, and the battery aluminum foil passes through the gap between the two brush rollers, with a brushing power device connected to the ends of the two brush rollers.

[0022] As a further provision of the above solution, the liquid cleaning mechanism also includes a pair of air knife boxes disposed in the cleaning tank. The two air knife boxes are arranged in a mirror-symmetrical manner with the battery aluminum foil as the axis of symmetry. The air outlet slits of the air knife boxes are inclined toward the surface of the aluminum foil, and both air knife boxes are connected to a blower through pipes.

[0023] The degreasing device for battery aluminum foil production disclosed in this invention mainly consists of two modules: a chemical cleaning mechanism and a circulating sponge wiping assembly. After the aluminum foil is immersed and brushed by the chemical cleaning mechanism, it is first pre-dehydrated by an air knife, and then enters the circulating sponge wiping assembly for surface treatment.

[0024] The core technology of this invention is the circulating sponge wiping assembly. It consists of two closed-loop transmission components arranged mirror-symmetrically around an aluminum foil axis within the chassis. Each closed-loop transmission component has multiple sponge wiping units evenly spaced. Each sponge wiping unit then circulates with the closed-loop transmission components, sequentially passing through the wiping station, the wringing station, and the drying station, repeating the cycle continuously.

[0025] As the sponge wiping unit moves with the closed-loop conveyor assembly to the side in contact with the aluminum foil surface, the wiping surface of the long sponge block elastically contacts the upper and lower surfaces of the aluminum foil. Because multiple sponge wiping units are evenly spaced on the closed-loop conveyor assembly, during the continuous traction of the aluminum foil, these units sequentially wipe the same section of the aluminum foil surface multiple times along the traction direction. This overcomes the limitations of traditional sponge roller line contact methods, which have a single wiping path and small contact area, thus achieving thorough adsorption of residual oil.

[0026] After each sponge wiping unit completes wiping, it detaches from the aluminum foil and moves to the desqueezing station. At the desqueezing station, the sponge wiping unit moves to the return stroke side away from the aluminum foil. The gear at its end meshes with a rack fixed to the inner wall of the casing. Then, through the engagement of a sliding column on the adjusting ring and a spiral guide groove on the pull rod, the rotational motion of the adjusting ring is converted into axial movement of the pull rod. This causes the extrusion plate to gradually compress the long sponge block, squeezing out the oil and cleaning fluid absorbed inside. Because the extrusion process is completed after the sponge wiping unit detaches from the aluminum foil and at a position away from the foil, the squeezed-out waste liquid is directly discharged through the drain hole or from the opening of the strip-shaped trough, and then collected and discharged, fundamentally avoiding the problem of waste liquid dripping onto the cleaned foil surface again.

[0027] Furthermore, after the sponge wiping unit completes the squeezing and dehydration process, it moves to the drying station. At this point, the long sponge block has returned to its original shape due to its own elasticity and the return elastic element. The air nozzle of the hot air supply unit is connected to the port of the pull rod, allowing hot air to be introduced into the hollow interior of the pull rod. The hot air is discharged through the air outlet and flows through the internal pores of the long sponge block, forcibly drying it and restoring its good liquid absorption capacity, preparing it for the next wiping cycle. Thus, the sponge wiping unit completes a complete cycle of wiping → squeezing and dehydration → hot air drying → wiping again. The technical solution disclosed in this invention, through the above-mentioned cyclical design, achieves continuous and efficient cleaning of the battery aluminum foil surface, while ensuring that the sponge wiping unit always participates in wiping in an optimal liquid absorption state, effectively improving the wiping and cleaning effect of aluminum foil degreasing and cleaning.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The degreasing device for battery aluminum foil production proposed in this invention integrates two major modules: a chemical cleaning mechanism and a circulating sponge wiping assembly. During the degreasing process, the aluminum foil is first immersed, brushed and pre-dehydrated by air knife in the cleaning tank, and then the circulating sponge wiping assembly wipes the upper and lower surfaces. This realizes continuous operation from chemical cleaning to physical adsorption and then drying, effectively ensuring the efficiency of battery aluminum foil degreasing and ensuring the cleanliness requirements of the battery aluminum foil surface.

[0030] (2) The circulating sponge wiping assembly in this invention uses two closed-loop transmission components to drive multiple sponge wiping units to circulate and wipe the upper and lower surfaces of the aluminum foil multiple times and in multiple positions in sequence. This overcomes the shortcomings of traditional sponge rollers in wiping and cleaning the aluminum foil surface. By increasing the number of wiping times and contact area per unit length of aluminum foil, it has a stronger ability to remove stubborn oil stains on the aluminum foil surface.

[0031] Meanwhile, after wiping, each sponge wiping unit is transferred to the dewatering station with the closed-loop transmission component. It is squeezed and dewatered at a position away from the aluminum foil, and the squeezed waste liquid is collected and discharged. The whole process not only avoids the problem of secondary pollution caused by waste liquid dripping onto the aluminum foil surface during online squeezing, but also dewaters the long sponge blocks in the sponge wiping unit more thoroughly than the dewatering of the sponge roller by the squeezing roller. This allows the recycled long sponge blocks to still have a good wiping and cleaning effect during long-term use.

[0032] (3) After each sponge wiping unit in this invention completes the squeezing and dehydration, it will continue to enter the drying station. Hot air is introduced into the hollow interior of the pull rod by the hot air supply unit. The hot air flows through the air outlet through the pores inside the long strip sponge block after it has returned to its original shape, so as to achieve forced hot air drying. This allows the sponge block to return to a relatively dry state before entering the next wiping cycle. This effectively solves the problem that traditional sponge rollers cannot completely dehydrate by squeezing alone and the wiping effect continues to decline after long-term use. It ensures that each sponge wiping unit always has excellent liquid absorption capacity during the cycle, thereby maintaining the consistency and stability of the cleaning effect when the equipment is running continuously for a long time. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a frontal perspective view of the present invention;

[0035] Figure 2 This is a three-dimensional structural diagram of the back of the present invention;

[0036] Figure 3 This is a schematic diagram of the internal planar structure of the medicine cleaning mechanism in this invention;

[0037] Figure 4 This is a schematic diagram of the internal planar structure of the sponge wiping unit in this invention;

[0038] Figure 5 This is a three-dimensional structural diagram of the sponge wiping unit in this invention;

[0039] Figure 6 This is a three-dimensional structural diagram of the sponge wiping unit in this invention;

[0040] Figure 7 This is a three-dimensional cross-sectional schematic diagram of the internal structure of the sponge wiping unit in this invention;

[0041] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B;

[0042] Figure 9 This is a three-dimensional structural diagram of the sponge wiping unit and the hot air supply unit in this invention;

[0043] Figure 10 For the present invention Figure 2 A magnified structural diagram of point A in the middle. Detailed Implementation

[0044] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0045] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-10 This application will be described in detail with reference to the embodiments.

[0046] Example 1

[0047] Example 1 discloses an oil removal device for battery aluminum foil production, such as... Figure 1 and Figure 2 As shown, the degreasing device mainly comprises two functional modules: a chemical cleaning mechanism 100 and a circulating sponge wiping assembly 200. The aluminum foil 300 first enters the chemical cleaning mechanism 100 for chemical cleaning on the production line, and then is drawn through the circulating sponge wiping assembly 200 for efficient drying and cleaning of its upper and lower surfaces. After degreasing and cleaning, the aluminum foil 300 is finally wound up by a collection device at the end of the production line.

[0048] like Figure 3 As shown, the cleaning mechanism 100 includes a cleaning tank 10, which contains an alkaline or emulsified cleaning solution for removing rolling oil from the surface of aluminum foil. An inlet roller 11 is rotatably mounted on the upper end of the inlet side (left side) of the cleaning tank 10, and a first outlet roller 12 is rotatably mounted on the upper end of the outlet side (right side). At the bottom of the cleaning tank 10 between the inlet roller 11 and the first outlet roller 12, a plurality of pressure rollers 13 are spaced apart. Guided by the aforementioned roller system, the aluminum foil 300 is pressed below the surface of the cleaning solution, achieving thorough immersion.

[0049] To further improve cleaning efficiency, a pair of brush rollers 14 are rotatably installed in the cleaning tank 10. The aluminum foil 300 passes through the gap between the two brush rollers 14, ensuring that its upper and lower surfaces are in full contact with the bristles on the brush rollers 14. The ends of the two brush rollers 14 are respectively connected to a brushing power device 15. Driven by the power device, the brush rollers 14 rotate at a set speed to mechanically brush the two surfaces of the aluminum foil 300, thereby accelerating the removal of oil stains.

[0050] In addition, a pair of air knife boxes 16 are provided in the cleaning tank 10 near the first guide roller 12. The pair of air knife boxes 16 are arranged in a mirror-symmetrical manner with the aluminum foil 300 as the axis of symmetry. The air outlet slits of both air knife boxes 16 are inclined towards the surface of the aluminum foil 300, and the same end of the two air knife boxes 16 is connected to the blower 18 through the air supply pipe 17. During operation, the blower 18 continuously supplies air, and the airflow is blown out at high speed through the air outlet slits of the air knife boxes 16, blowing most of the cleaning liquid adhering to the upper and lower surfaces of the aluminum foil 300 back into the cleaning tank 10, thus achieving preliminary dehydration.

[0051] like Figures 4 to 8 As shown, the circulating sponge wiping assembly 200 includes a housing 21. The left and right sides of the housing 21 are respectively provided with corresponding inlet and outlet ports, and a second guide roller 211 is rotatably installed at the outlet port. The aluminum foil 300 introduced by the first guide roller 12 is horizontally pulled through the inside of the housing 21, and then guided by the second guide roller 211 to the downstream winding device.

[0052] Inside the chassis 21, two closed-loop transmission components 22 are arranged in a mirror image of each other with the aluminum foil 300 as the axis of symmetry. Each closed-loop transmission component 22 has multiple sponge wiping units 23 installed at equal intervals along its circumference. The multiple sponge wiping units 23 on adjacent sides of the two sets of closed-loop transmission components 22 sequentially and elastically contact the upper and lower surfaces of the aluminum foil 300, achieving multiple and thorough wiping of residual oil and cleaning fluid. When the sponge wiping unit 23 moves with the closed-loop transmission component 22 to the side away from the aluminum foil 300 (i.e., the return stroke), the sponge inside is automatically squeezed and dehydrated, thereby restoring its adsorption capacity and achieving recycling.

[0053] In its specific design, the closed-loop transmission assembly 22 includes axles 221 rotatably mounted at both ends of the housing 21, with one axle 221 connected to a transmission power device 222 mounted on the outer surface of the housing 21. This transmission power device 222 has the same structural design as the brushing power device 15, and can be composed of a motor and a reducer or gearbox. Each axle 221 has a drive wheel 223 fixedly mounted at both ends, and a conveying transmission component 224 is fitted between two opposing drive wheels 223. This conveying transmission component 224 can be a transmission chain or a synchronous belt, and the drive wheels 223 can be sprockets or synchronous belt pulleys to achieve precise circular transmission. The closed-loop transmission assembly 22, through the intermittent power input of the transmission power device 222, can control the distance between two adjacent sponge wiping units 23 conveyed by the conveying transmission component 224 each time.

[0054] The sponge wiping unit 23 includes a strip-shaped slot 231 spanning across two conveyor drive members 224. The length of the strip-shaped slot 231 is perpendicular to the traction direction of the aluminum foil 300, and its length is greater than the width of the aluminum foil 300 to ensure that it can cover the entire foil surface. A pull rod 232 with one end extending out of its end face is inserted into the strip-shaped slot 231, and a pressing plate 233 is fixedly connected to one end of the pull rod 232 inside the strip-shaped slot 231. A reset elastic member 234 is connected between the pressing plate 233 and the side wall of the strip-shaped slot 231. A long strip of sponge 235 is housed inside the strip-shaped slot 231, and the long strip of sponge 235 is sleeved on the pull rod 232, with one end abutting against the pressing plate 233. The wiping surface (i.e. the outer end) of the long strip sponge block 235 extends a certain distance (e.g., 10~15mm) beyond the opening of the strip slot box 231. This extended part is used to directly contact the surface of the aluminum foil 300 and absorb liquid.

[0055] Multiple drainage holes 2311 are provided on the bottom surface (i.e., bottom wall) of the strip-shaped slot box 231 away from the opening. A convex ring 2312 is fixedly provided on the end face of the strip-shaped slot box 231 for extending the pull rod 232. An adjusting ring 237 is rotatably connected to the convex ring 2312 via a bearing. A gear portion 2371 is fixedly provided on the outer circumference of the adjusting ring 237, and a sliding column 2372 is fixedly provided on its inner circumference. A spiral guide groove 2321 is provided on the outer circumference of the pull rod 232 near the convex ring 2312. The sliding column 2372 is then inserted into the spiral guide groove 2321 and slidably engaged with it.

[0056] like Figure 1 , Figure 4 and Figure 5 As shown, a horizontally arranged rack 236 is fixedly installed on the inner wall of the chassis 21 on the side away from the aluminum foil 300 (i.e., the return stroke side). When the sponge wiping unit 23 moves to the return stroke side under the drive of the closed-loop transmission assembly 22, the gear part 2371 at its end meshes with the rack 236. As the sponge wiping unit 23 continues to move horizontally, the gear part 2371 rotates around the convex ring 2312 under the drive of the rack 236. Then, through the cooperation of the sliding column 2372 and the spiral guide groove 2321, the rotational motion is converted into the axial movement of the pull rod 232, that is, the pull rod 232 moves towards the convex ring 2312 and stretches the reset elastic member 234. During this process, the compression plate 233, which is fixed to the pull rod 232, will compress the long strip of sponge block 235, thereby compressing its volume. The oil and cleaning fluid adsorbed inside will be squeezed out, and the squeezed waste liquid will be discharged through the drain hole 2311 at the bottom of the strip box 231, or directly fall from the open end of the strip box 231 (corresponding to the sponge wiping unit 23 on the closed-loop transmission assembly 22 below).

[0057] Finally, to centrally collect the extruded waste liquid, a liquid receiving tank 238 is also provided in the upper closed-loop transmission assembly 22. The bottom of the liquid receiving tank 238 is connected to a drain branch pipe 2381 extending out of the casing 21, and a drain pipe 239 is also connected to the bottom of the casing 21. The drain branch pipe 2381 and the drain pipe 239 are connected to each other, thereby realizing the centralized discharge of waste liquid.

[0058] Example 2

[0059] Example 2 is based on the technical solution of Example 1, and further adds the function of hot air drying of the long strip sponge block 235. This function aims to accelerate the drying of the inside of the sponge block after compression and dehydration, and further improve its liquid absorption capacity when recycled. The similarities with Example 1 will not be described again.

[0060] like Figure 7 and Figure 8 As shown, in this embodiment 2, the pull rod 232 is configured as a hollow structure, and multiple air outlets 2322 are provided on the rod body located inside the strip-shaped slot box 231. When the sponge wiping unit 23 moves linearly and completes the entire rack 236, the gear part 2371 disengages from the rack 236. At this time, under the combined action of the elastic restoring force of the long strip sponge block 235 and the restoring force of the reset elastic element 234, the squeezing plate 233 will move away from the convex ring 2312 and drive the pull rod 232 to reset. After resetting, the long strip sponge block 235 will cover all the air outlets 2322 on the pull rod 232, preparing for subsequent internal air supply drying.

[0061] like Figure 1 Appendix Figure 9 and Figure 10 This embodiment 2 also includes a hot air supply unit 400, which includes a hot air blower 41 mounted above the housing 21. The outlet of the hot air blower 41 is connected to a main air supply pipe 42. A strip-shaped opening 212 parallel to the racks 236 is provided on the side of the housing 21 located downstream of the upper and lower racks 236. A positioning stop plate 213 is fixedly installed on the exterior of the housing 21 on one side of each strip-shaped opening 212. A horizontal slide rail 43 is fixedly installed on the housing 21 below the strip-shaped opening 212. A sliding seat 44 is slidably mounted on the horizontal slide rail 43, and a return spring 45 is connected between the sliding seat 44 and one end of the horizontal slide rail 43 (or between the sliding seat 44 and the positioning stop plate 213). An air nozzle 46 is inserted into the upper end of the sliding seat 44. The air nozzle 46 can extend into the housing 21 through the strip-shaped opening 212 and is inserted into the port of the pull rod 232. The sliding seat 44 is also provided with a telescopic drive component 47 (specifically a miniature cylinder or electromagnet), which is used to drive the air nozzle 46 to move along the axial direction of the pull rod 232, and then connect the air nozzle 46 to the air supply main pipe 42 through the air supply pipe 48.

[0062] In addition, a sensor 49 for detecting the horizontal position of the sliding seat 44 is provided on the positioning stop plate 213. This sensor 49 is preferably a laser rangefinder or a proximity switch, and is electrically connected to a control box 50 with a built-in control system. The control system in the control box 50 controls the movement of the telescopic drive member 47 based on the signal from the sensor 49.

[0063] When the sponge wiping unit 23, after being squeezed and dehydrated and separated from the rack 236, moves with the closed-loop transmission assembly 22 to the station aligned with the positioning stop plate 213, the control system controls the telescopic drive component 47 to extend, precisely inserting the air nozzle 46 into the open end of the pull rod 232. Subsequently, the hot air blower 41 starts, and the generated hot air enters the hollow pull rod 232 through the air supply main pipe 42, the air delivery duct 48, and the air nozzle 46, and finally exits from the air outlet 2322, flowing through the internal pores of the restored long strip sponge block 235 for forced hot air drying.

[0064] During the drying process, the sponge wiping unit 23 continues to move slowly horizontally under the drive of the closed-loop transmission assembly 22. Since the air nozzle 46 is in the insertion state with the pull rod 232, the sliding seat 44 moves synchronously with the sponge wiping unit 23, thereby extending the hot air supply time for each docking and improving the hot air drying effect on the long sponge block 235. When the sponge wiping unit 23 moves to the next station, or when the next sponge wiping unit 23 moves to the positioning stop plate 213, the control system controls the telescopic drive component 47 to retract, pulling the air nozzle 46 out of the pull rod 232. Then, the sliding seat 44 quickly resets under the action of the return spring 45, waiting to dock with the next sponge wiping unit 23 and repeat the above drying process.

[0065] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A degreasing device for battery aluminum foil production, comprising a chemical cleaning mechanism for cleaning the aluminum foil, characterized in that, A circulating sponge wiping assembly is located downstream of the liquid cleaning mechanism for wiping the upper and lower surfaces of the cleaned aluminum foil. The circulating sponge wiping assembly includes a chassis and two closed-loop transmission components disposed in the chassis. The two closed-loop transmission components are arranged in a mirror image symmetrically about the aluminum foil that passes through them. Each closed-loop transmission component is provided with multiple sponge wiping units at equal intervals. The sponge wiping units move cyclically as the closed-loop transmission components operate, passing through the wiping station, the squeezing station and the drying station in sequence. The sponge wiping unit includes a strip-shaped groove box, a pressing plate slidably disposed in the strip-shaped groove box, a pull rod connected to the pressing plate, and a long strip sponge block housed in the strip-shaped groove box. A reset elastic element is connected between the pressing plate and the strip-shaped groove box. The pull rod passes through the interior of the long strip sponge block and extends out of the side end of the strip-shaped groove box. The circulating sponge wiping assembly also includes a water squeezing drive mechanism. When the sponge wiping unit moves to the water squeezing station, the water squeezing drive mechanism drives the pull rod to move axially so that the extrusion plate gradually squeezes the long sponge block to achieve the squeezing and dehydration of the sponge block.

2. The degreasing device for battery aluminum foil production according to claim 1, characterized in that, The dewatering drive mechanism includes a rack fixedly mounted on the inner wall of the casing, an adjusting ring rotatably mounted on the side of the strip-shaped slot box, and a spiral guide groove formed on the outer circumferential surface of the pull rod; the outer circumferential surface of the adjusting ring is provided with a gear portion that meshes with the rack, and a sliding column is fixedly mounted on its inner circumferential surface; one end of the pull rod extends concentrically out of the adjusting ring, and the sliding column on the adjusting ring slides in cooperation with the spiral guide groove; When the sponge wiping unit moves to the squeezing station, the adjustment ring rotates through the meshing transmission of the gear and rack. During the rotation of the adjustment ring, the pull rod moves axially through the cooperation of the sliding column and the spiral guide groove, so that the extrusion plate gradually squeezes the long sponge block.

3. The degreasing device for battery aluminum foil production according to claim 2, characterized in that, The wiping surface of the long strip of sponge extends a certain distance beyond the opening of the strip-shaped groove box; the bottom wall of the strip-shaped groove box is provided with drainage holes to discharge the liquid squeezed out from the long strip of sponge block.

4. The degreasing device for battery aluminum foil production according to claim 3, characterized in that, The pull rod has a hollow structure, and an air outlet is provided on the rod body inside the strip-shaped slot box; It also includes a hot air supply unit, which includes a hot air blower and an air nozzle. The air nozzle is connected to the air outlet of the hot air blower. When the sponge wiping unit moves to the drying station, the air nozzle is connected to the port of the pull rod to introduce hot air into the interior of the pull rod.

5. The degreasing device for battery aluminum foil production according to claim 4, characterized in that, The hot air supply unit further includes a main air supply pipe, a gas delivery pipe, a horizontal slide rail, a sliding seat, and a telescopic drive component; the air outlet of the hot air blower is connected to the main air supply pipe, one end of the gas delivery pipe is connected to the main air supply pipe, and the other end is connected to the air nozzle; the air nozzle is mounted on the sliding seat and slides horizontally along the horizontal slide rail with the sliding seat; the telescopic drive component is mounted on the sliding seat and is used to drive the air nozzle to insert into or pull out of the pull rod.

6. The degreasing device for battery aluminum foil production according to claim 5, characterized in that, The chassis is provided with a positioning stop plate for positioning the sliding seat. The sliding seat is connected with a return spring for moving and resetting the sliding seat to one side of the positioning stop plate. The positioning stop plate is provided with a sensor for detecting the horizontal position of the sliding seat, and the sensor is electrically connected to a control box. The control box controls the extension or retraction of the telescopic drive component according to the horizontal position of the sliding seat.

7. The degreasing device for battery aluminum foil production according to claim 1, characterized in that, The closed-loop transmission assembly includes axles rotatably mounted at both ends of the chassis, a transmission power device for driving the axles to rotate, transmission wheels fixedly mounted at both ends of the axles, and a conveying transmission component sleeved between two opposing transmission wheels; the strip-shaped slot box is transversely mounted on the front and rear conveying transmission components in an orientation perpendicular to the aluminum foil traction direction, and the length of the strip-shaped slot box is greater than the width of the aluminum foil.

8. The degreasing device for battery aluminum foil production according to claim 1, characterized in that, The liquid cleaning mechanism includes a cleaning tank, an inlet roller disposed at the upper end of the inlet side of the cleaning tank, a first outlet roller disposed at the upper end of the outlet side of the cleaning tank, and a pressure roller disposed between the inlet roller and the first outlet roller.

9. The degreasing device for battery aluminum foil production according to claim 1, characterized in that, The cleaning mechanism also includes a pair of brush rollers rotatably disposed in the cleaning tank, with the battery aluminum foil passing through the gap between the two brush rollers, and the ends of the two brush rollers connected to a brushing power device.

10. The degreasing device for battery aluminum foil production according to claim 1, characterized in that, The cleaning mechanism also includes a pair of air knife boxes disposed in the cleaning tank. The two air knife boxes are arranged in a mirror-symmetrical manner with the battery aluminum foil as the axis of symmetry. The air outlet slits of the air knife boxes are inclined toward the surface of the aluminum foil, and both air knife boxes are connected to a blower through pipes.

Images