A surface treatment device for lithium battery copper foil

Abstract

This utility model discloses a surface treatment device for lithium battery copper foil, including a working frame with symmetrically fixed partitions inside. The inner cavity between the two partitions is a water washing cavity. A copper powder cleaning mechanism, symmetrically installed on the right side of the right partition, is mounted in the inner cavity to collect and clean copper powder adhering to the upper and lower surfaces of the copper foil. A roller assembly is rotatably mounted in the water washing cavity to assist the copper foil in entering the washing cavity for washing. A liquid scraping mechanism is installed in the washing cavity to scrape off the washing liquid adhering to the upper and lower surfaces of the copper foil. This utility model can effectively remove most of the residual washing liquid from the surface of the copper foil after washing.

Description

Technical Field

[0001] This utility model relates to the field of copper foil production technology, and in particular to a surface treatment device for lithium battery copper foil. Background Technology

[0002] Copper foil is an important material used in the production of lithium batteries to meet the requirements of lithium batteries in terms of electrical performance, physical properties, and manufacturing characteristics. In the conventional process, the surface of copper foil needs to be polished, washed, and dried. Some copper powder is generated during the polishing process. During the subsequent washing of copper foil, copper powder remains in the washing equipment, causing the cleaning solution in the washing equipment to absorb more copper powder, which affects the washing effect.

[0003] A search revealed that utility model patent document CN221559073U discloses a surface treatment device for lithium battery copper foil production, including a base, a fixed vertical plate fixedly connected to the top of the base, a top plate fixedly connected to the top of the fixed vertical plate, a cleaning mechanism movably connected between opposite sides of the two fixed vertical plates, the cleaning mechanism including a sweeping component and a dust suction component, a cleaning device provided on the front side of the top of the base, and a lithium battery copper foil body provided on the surface of the cleaning device.

[0004] The aforementioned processing equipment moves the lithium-ion battery copper foil through unwinding and rewinding, while simultaneously using a dust extraction component and a brush to clean and collect the copper powder adhering to the upper surface of the lithium-ion battery copper foil. At this time, the copper powder adhering to the lower surface of the lithium-ion battery copper foil cannot be effectively collected, which will reduce the effect of subsequent water washing. Furthermore, after passing through the cleaning equipment, a large amount of cleaning liquid will adhere to the surface of the copper foil, which will prolong the drying time of the copper foil.

[0005] The copper foil has not been leveled before being washed with water, and its surface will have some pits, which will affect the subsequent scraping effect of liquid off the copper foil surface. Utility Model Content

[0006] The purpose of this invention is to provide a lithium battery copper foil surface treatment device that can effectively remove most of the residual washing liquid from the surface of the copper foil after washing.

[0007] The present invention adopts the following technical solution:

[0008] A lithium battery copper foil surface treatment device includes a working frame, with partitions symmetrically fixed inside the working frame. The inner cavity of the working frame between the two partitions is a water washing cavity. A copper powder cleaning mechanism is symmetrically installed in the inner cavity of the working frame on the right side of the right partition to clean and collect copper powder adhering to the upper and lower surfaces of the copper foil. A roller assembly is rotatably installed in the water washing cavity to assist the copper foil in entering the water washing cavity for water washing. A liquid scraping mechanism is installed in the water washing cavity to scrape off the washing liquid adhering to the upper and lower surfaces of the copper foil.

[0009] The copper powder cleaning mechanism includes a rotating shaft, a symmetrically arranged air inlet frame and a dust collection frame. The rotating shaft rotates with the working frame. The two dust collection frames are symmetrically arranged on the left and right sides of the air inlet frame. Fixing components are provided on both ends of the dust collection frame. The fixing components are fixed to the dust collection frame and the air inlet frame. The fixing components are fixed to the inner wall of the working frame.

[0010] Optionally, bearings two are symmetrically fixed inside the air inlet frame, and a cover plate is provided on the outside of bearing two. The cover plate is fixed on the outer side of the air inlet frame to seal bearing two, and a fan blade is provided between the two bearings two.

[0011] Optionally, the rotating shaft passes through the air inlet frame and is fixed to the inner ring of the bearing. The fan blade is fixedly mounted on the surface of the rotating shaft, and a brush is fixedly mounted on the surface of the rotating shaft.

[0012] Optionally, the air inlet frame is provided with a vertical first air inlet and a horizontal second air inlet. The first air inlet is located on the upper end face of the air inlet frame, and the second air inlet is located on the right end face of the air inlet frame. Both the first air inlet and the second air inlet communicate with the inner cavity of the air inlet frame.

[0013] Optionally, the outer side of the dust collection frame is connected to an air pipe two, the other end of which is connected to the second air inlet of the air inlet frame. An air pipe one is fixedly installed at the first air inlet and connected to it. A connector is connected between the two air pipes one.

[0014] Optionally, the roller assembly includes roller one, roller two, roller three and roller four, with the liquid scraping mechanism disposed between roller three and roller four.

[0015] Optionally, the liquid scraping mechanism includes a symmetrically arranged support plate and a rotating shaft. The support plate is fixedly mounted on the inner wall of the working frame. Supports are symmetrically fixedly mounted on the surface of the support plate. A connecting plate is hinged between the two supports. Several springs are fixedly connected between the connecting plate and the support plate. A rubber brush is fixedly mounted on the outer end face of the connecting plate.

[0016] Optionally, the second rotating shaft is rotatably mounted on the inner wall of the working frame and positioned above the connecting plate, and a brush is provided on the surface of the second rotating shaft.

[0017] Optionally, a water-absorbing frame is fixedly installed on the surface of the support plate. The water-absorbing frame is located above the second rotating shaft, and a rubber pad that contacts the surface of the copper foil is fixedly installed on the outer end face of the water-absorbing frame relative to the copper foil.

[0018] Optionally, a gear 1 is fixedly installed on the outer circumferential surface of roller 3, and a gear 2 that meshes with gear 1 is fixedly installed on the outer circumferential surface of an adjacent rotating shaft 2. On the outer end surfaces of the two rotating shafts 2 on the other side, gear 3 that meshes with each other is provided.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. In this utility model, the rubber brush can be pressed tightly against the surface of the copper foil by the spring pressing the connecting plate. The rubber brush does not absorb water and can scrape off most of the liquid on the surface of the copper foil when the copper foil is moved. Then, the rotating shaft drives the brush to rotate, and at the same time, the suction frame can effectively clean the residual washing liquid in the pits on the surface of the copper foil, which greatly improves the subsequent drying efficiency of the copper foil.

[0021] 2. In this embodiment, when the exhaust mechanism starts to operate, it will drive the fan blades to rotate. The rotation of the fan blades will drive the rotation of the first rotating shaft, thereby cleaning the copper powder on the upper and lower surfaces of the copper foil. At the same time, the cleaned copper powder is effectively sucked up by the dust collection frame, and then enters the exhaust mechanism through the dust collection frame, the second air pipe, the air inlet frame, and the first air pipe, so as to effectively collect the copper powder. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the copper powder cleaning mechanism of this utility model;

[0024] Figure 3 This is a schematic diagram of the air inlet frame of this utility model;

[0025] Figure 4 This is a cross-sectional view of the air inlet frame of this utility model;

[0026] Figure 5 This is a cross-sectional view of the present invention;

[0027] Figure 6 In this utility model Figure 5 A magnified view of the details at point A;

[0028] Figure 7 This is a schematic diagram of the liquid scraping mechanism of this utility model;

[0029] Figure 8In this utility model Figure 7 A magnified view of the details at point B;

[0030] Figure 9 This is a cross-sectional view of the liquid scraping mechanism of this utility model.

[0031] In the diagram: 1. Working frame; 11. Cleaning chamber; 12. Partition; 2. Copper powder cleaning mechanism; 3. Liquid scraping mechanism; 4. Gear 1; 41. Gear 2; 5. Copper foil; 61. Roller 1; 62. Roller 2; 63. Roller 3; 64. Roller 4; 21. Air inlet frame; 211. First air outlet; 212. Second air outlet; 22. Air pipe 1; 23. Dust suction frame; 24. Rotating shaft 1; 241. Bearing 1; 242. Brush component; 243. Fixing component; 25. Air pipe 2; 26. Connecting component; 27. Fan blade component; 28. Bearing 2; 29. ​​Cover plate; 31. Support plate; 311. Through hole; 312. Support; 32. Water suction frame; 321. Rubber pad; 33. Rotating shaft 2; 34. Connecting plate; 341. Spring; 35. Rubber brush; 36. Gear 3. Detailed Implementation

[0032] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0033] Please see Figure 1-9 The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0034] A lithium battery copper foil surface treatment device includes a working frame 1. Symmetrically fixed partitions 12 are arranged inside the working frame 1. Each partition 12 has a slit on its side that allows copper foil 5 to pass through. The inner cavity of the working frame 1 between the two partitions 12 is a water washing cavity, filled with washing liquid to wash the copper foil 5. A copper powder cleaning mechanism 2 is symmetrically arranged on the right side of the partition 12 and installed inside the working frame 1. The two copper powder cleaning mechanisms 2 can effectively clean and collect the copper powder adhering to the upper and lower surfaces of the copper foil 5, preventing copper powder from entering the water washing cavity.

[0035] A roller assembly is rotatably installed in the washing chamber to assist the copper foil 5 in entering the washing chamber for washing. A liquid scraping mechanism 3 is installed in the washing chamber to treat the upper and lower surfaces of the copper foil 5 coming out of the washing liquid, scraping off the washing liquid adhering to the surface of the copper foil 5, thereby improving the subsequent drying efficiency of the copper foil 5.

[0036] In this embodiment, the copper powder cleaning mechanism 2 includes a rotating shaft 24, an air inlet frame 21 and a dust suction frame 23 arranged symmetrically. The rotating shaft 24 rotates with the working frame 1, and the two dust suction frames 23 are symmetrically arranged on the left and right sides of the air inlet frame 21.

[0037] Both ends of the dust collection frame 23 are provided with fixing members 243. The fixing members 243 are fixed to the dust collection frame 23 and the air inlet frame 21. The fixing members 243 are fixed on the inner wall of the working frame 1 to support the copper powder cleaning mechanism 2.

[0038] In this embodiment, bearings 28 are symmetrically fixed inside the air inlet frame 21, and a cover plate 29 is provided on the outside of the bearings 28. The cover plate 29 is fixedly provided on the outer side of the air inlet frame 21 to seal the bearings 28. A fan blade 27 is provided between the two bearings 28.

[0039] Rotating shaft 24 passes through air inlet frame 21 and is fixed to the inner ring of bearing 28. Fan blade 27 is fixedly mounted on the surface of rotating shaft 24. Brush 242 is fixedly mounted on the surface of rotating shaft 24. The bristles of brush 242 are in contact with the surface of copper foil 5. During rotation, it can brush the copper powder on the surface of copper foil 5 without damaging the surface of copper foil 5.

[0040] Bearings 241 are installed at both ends of the rotating shaft 24. The rotating shaft 24 is fixed to the inner ring of the bearing 241, and the outer ring of the bearing 241 is fixed to the inner wall of the working frame 1 to ensure the rotational stability of the rotating shaft 24.

[0041] Specifically, the rotation of the fan blade 27 drives the rotation shaft 24 to rotate, and the rotation of the rotation shaft 24 drives the brush 242 to rotate.

[0042] In this embodiment, the air inlet frame 21 is provided with a vertical first air inlet 211 and a horizontal second air inlet 212. The first air inlet 211 is located on the upper end face of the air inlet frame 21, and the second air inlet 212 is located on the right end face of the air inlet frame 21. Both the first air inlet 211 and the second air inlet 212 communicate with the inner cavity of the air inlet frame 21.

[0043] In this embodiment, the outer side of the dust collection frame 23 is connected to the second air pipe 25, and the other end of the second air pipe 25 is connected to the second air inlet 212 of the air inlet frame 21.

[0044] A duct 22 is fixedly installed at the first air outlet 211 and is connected to it. A connector 26 is fixedly connected between the two ducts 22. The connector 26 is connected to the external exhaust mechanism, and the external exhaust mechanism is used to perform exhaust and dust removal.

[0045] The aforementioned ventilation mechanism is existing technology and will not be drawn or described in detail here.

[0046] Specifically, when the exhaust mechanism starts to operate, it will drive the fan blade 27 to rotate. The rotation of the fan blade 27 will drive the rotation of the rotating shaft 24, thereby cleaning the copper powder on the upper and lower surfaces of the copper foil 5. At the same time, the cleaned copper powder is effectively sucked up by the dust collection frame 23, and then enters the exhaust mechanism through the dust collection frame 23, the second air pipe 25, the air inlet frame 21, and the first air pipe 22 to collect the copper powder in a concentrated manner.

[0047] In this embodiment, the roller assembly includes roller 1 61, roller 2 62, roller 3 63 and roller 4 64. The liquid scraping mechanism 3 is disposed between roller 3 63 and roller 4 64. The washing liquid will submerge roller 2 62 and roller 3 63, but will not come into contact with the liquid scraping mechanism 3.

[0048] In this embodiment, the liquid scraping mechanism 3 includes a symmetrically arranged support plate 31 and a rotating shaft 33. The support plate 31 is fixedly arranged on the inner wall of the working frame 1. Supports 312 are symmetrically fixedly arranged on the surface of the support plate 31. A connecting plate 34 is hinged between the two supports 312. A plurality of springs 341 are fixedly connected between the connecting plate 34 and the support plate 31. A rubber brush 35 is fixedly arranged on the outer end face of the connecting plate 34.

[0049] Specifically, the spring 341 presses against the connecting plate 34, allowing the rubber brush 35 to adhere tightly to the surface of the copper foil 5. The rubber brush 35 does not absorb water, and can scrape off most of the liquid on the surface of the copper foil 5 when it moves. At this time, some pits on the surface of the copper foil 5 will store some washing liquid, and the rubber brush 35 cannot scrape off the liquid in the pits.

[0050] In this embodiment, the second rotating shaft 33 is rotatably mounted on the inner wall of the working frame 1 and above the connecting plate 34. The surface of the second rotating shaft 33 is provided with a brush, which can clean out the liquid in the pits on the surface of the copper foil 5 during rotation, facilitating further cleaning.

[0051] In this embodiment, a water-absorbing frame 32 is fixedly provided on the surface of the support plate 31. The water-absorbing frame 32 is located above the rotating shaft 33. The water-absorbing frame 32 is connected to the external water-absorbing mechanism. The water-absorbing mechanism absorbs the water droplets after the brush is rotated and cleaned, which can greatly reduce the subsequent drying time of the copper foil 5 surface.

[0052] A rubber pad 321 is fixedly provided on the outer end face of the absorbent frame 32 relative to the copper foil 5, which is in contact with the surface of the copper foil 5. The rubber pad 321 can prevent liquid from splashing to the outside during cleaning.

[0053] In this embodiment, in order to make full use of the rotational force of the copper foil 5 driving the roller assembly during the movement, a gear 4 can be fixedly installed on the outer circumferential surface of the roller 3 63, and a gear 41 meshing with the gear 4 can be fixedly installed on the outer circumferential surface of an adjacent rotating shaft 2 33, so that the rotation of the roller 3 63 drives the rotation of the rotating shaft 2 33.

[0054] On the other side, the outer end surfaces of the two rotating shafts 2 33 are provided with meshing gears 3 36. The rotation of one rotating shaft 2 33 can drive the other rotating shaft 2 33 to rotate, which facilitates the synchronous cleaning of the upper and lower surfaces of the copper foil 5.

[0055] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0056] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0057] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A surface treatment device for lithium battery copper foil, characterized in that: The device includes a working frame, with partitions symmetrically fixed inside the working frame. The inner cavity of the working frame between the two partitions is a water washing cavity. A copper powder cleaning mechanism is symmetrically installed on the right side of the right partition in the inner cavity of the working frame to clean and collect copper powder adhering to the upper and lower surfaces of the copper foil. A roller assembly is rotatably installed in the water washing cavity to assist the copper foil in entering the water washing cavity for water washing. A liquid scraping mechanism is installed in the water washing cavity to scrape off the washing liquid adhering to the upper and lower surfaces of the copper foil. The copper powder cleaning mechanism includes a rotating shaft, a symmetrically arranged air inlet frame and a dust collection frame. The rotating shaft rotates with the working frame. The two dust collection frames are symmetrically arranged on the left and right sides of the air inlet frame. Fixing components are provided on both ends of the dust collection frame. The fixing components are fixed to the dust collection frame and the air inlet frame. The fixing components are fixed to the inner wall of the working frame.

2. The lithium battery copper foil surface treatment equipment according to claim 1, characterized in that: Bearing 2 is symmetrically fixed inside the air inlet frame. A cover plate is provided on the outside of bearing 2. The cover plate is fixed on the outer side of the air inlet frame to seal bearing 2. A fan blade is provided between the two bearing 2.

3. The lithium battery copper foil surface treatment equipment according to claim 2, characterized in that: The rotating shaft passes through the air inlet frame and is fixed to the inner ring of the bearing. The fan blade is fixedly mounted on the surface of the rotating shaft, and a brush is fixedly mounted on the surface of the rotating shaft.

4. The lithium battery copper foil surface treatment equipment according to claim 3, characterized in that: The air inlet frame is equipped with a vertical first air inlet and a horizontal second air inlet. The first air inlet is located on the upper end face of the air inlet frame, and the second air inlet is located on the right end face of the air inlet frame. Both the first air inlet and the second air inlet are connected to the inner cavity of the air inlet frame.

5. The lithium battery copper foil surface treatment equipment according to claim 4, characterized in that: The outer side of the vacuum cleaner frame is connected to the second air pipe. The other end of the second air pipe is connected to the second air inlet of the air inlet frame. The first air inlet is fixedly installed with the first air pipe connected to it. The two air pipes are connected by a connector.

6. The lithium battery copper foil surface treatment equipment according to claim 1, characterized in that: The roller assembly includes roller one, roller two, roller three and roller four, and the liquid scraping mechanism is located between roller three and roller four.

7. The lithium battery copper foil surface treatment equipment according to claim 6, characterized in that: The liquid scraping mechanism includes a symmetrically arranged support plate and a rotating shaft. The support plate is fixedly installed on the inner wall of the working frame. Supports are symmetrically fixedly installed on the surface of the support plate. A connecting plate is hinged between the two supports. Several springs are fixedly connected between the connecting plate and the support plate. A rubber brush is fixedly installed on the outer end face of the connecting plate.

8. The lithium battery copper foil surface treatment equipment according to claim 7, characterized in that: The second rotating shaft is rotatably mounted on the inner wall of the working frame and above the connecting plate. The surface of the second rotating shaft is provided with a brush.

9. The lithium battery copper foil surface treatment equipment according to claim 8, characterized in that: A water-absorbing frame is fixedly installed on the surface of the support plate. The water-absorbing frame is located above the second rotating shaft. A rubber pad that contacts the surface of the copper foil is fixedly installed on the outer end face of the water-absorbing frame relative to the copper foil.

10. The lithium battery copper foil surface treatment equipment according to claim 7, characterized in that: Gear 1 is fixedly installed on the outer circumferential surface of roller 3. Gear 2 that meshes with gear 1 is fixedly installed on the outer circumferential surface of an adjacent rotating shaft 2. Gear 3 that meshes with each other is installed on the outer end surfaces of the two rotating shafts 2 on the other side.

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