Efficient drying device for lithium battery copper foil

Abstract

The utility model discloses an efficient lithium battery copper foil drying device which comprises a first support and a second support, two symmetrical drying frames are arranged between two vertical plates of the first support, and a moisture removing mechanism is arranged between two vertical plates of the second support. The moisture removal mechanism comprises an upper rotating cylinder, a lower rotating cylinder, a plurality of first supporting frames and a plurality of second supporting frames, the first supporting frames are circumferentially arranged on the circumferential surface of the upper rotating cylinder, the second supporting frames are circumferentially arranged on the circumferential surface of the lower rotating cylinder, and water absorption sponge blocks are installed in the first supporting frames and the second supporting frames. According to the device, liquid on the upper surface and the lower surface of the lithium battery copper foil is absorbed through the water absorption sponge blocks, so that the surface of the lithium battery copper foil is prevented from being damaged, and the production effect of the lithium battery copper foil is improved.

Description

Technical Field

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

[0002] Copper foil undergoes a washing process during manufacturing to clean surface impurities, but residual moisture can cause oxidation or corrosion, reducing conductivity. Drying thoroughly removes moisture, ensuring copper foil purity (at least 99.8%), and is an indispensable step in copper foil manufacturing. Furthermore, if moisture is not removed, it may affect the bonding strength between the active material and the current collector in subsequent coating processes.

[0003] A search revealed that utility model patent document CN218155313U discloses a copper foil drying device for lithium battery foil production, including copper foil, a material rack for serpentine conveying of copper foil, and a hot air pipe vertically installed on one side of the material rack. The copper foil is provided with several upward sections and several downward sections in the material rack, and also includes auxiliary scraping racks respectively mounted outside the several downward sections. The auxiliary scraping racks are mounted in the material rack through two fixed seats.

[0004] The thickness of lithium battery copper foil is generally 6-20μm, and it is a double-sided bright copper foil. In the above-mentioned drying device, the residual moisture on the surface of the lithium battery copper foil is scraped off by a scraper. The scraper is made of hard material, which will cause certain damage to the surface of the lithium battery copper foil during the scraping process, affecting the production effect of lithium battery copper foil. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency drying device for lithium battery copper foil, which solves the problem that the process of scraping off residual moisture on the surface of lithium battery copper foil will cause certain damage to the surface of lithium battery copper foil, thus affecting the production effect of lithium battery copper foil.

[0006] The present invention adopts the following technical solution:

[0007] A high-efficiency drying device for lithium battery copper foil includes a support frame 1 and a support frame 2. Two symmetrical drying frames are arranged between two vertical plates of the support frame 1. A moisture removal mechanism is arranged between two vertical plates of the support frame 2. The moisture removal mechanism includes an upper rotating cylinder, a lower rotating cylinder, several support frames 1 and several support frames 2. Several support frames 1 are arranged in a circle on the circumferential surface of the upper rotating cylinder, and several support frames 2 are arranged in a circle on the circumferential surface of the lower rotating cylinder.

[0008] Connecting frames are fixedly installed on the outer sides of the two vertical plates of the second bracket. A drainage mechanism is installed below the connecting frames, and the position of the drainage mechanism corresponds to that of the upper rotating cylinder.

[0009] Both support frame one and support frame two are equipped with water-absorbing sponge blocks;

[0010] Several fixing components for mounting support frame one and support frame two are provided on the circumferential surfaces of both the upper and lower rotating cylinders.

[0011] Optionally, hollow rotating shafts are symmetrically rotated between the two vertical plates of the support frame 2. The upper rotating cylinder and the lower rotating cylinder are fixedly engaged with the corresponding hollow rotating shafts. A collection frame is provided on the surface of the horizontal plate of the support frame 2. Vertical through groove 1 and vertical through groove 2 are opened on the outer side of the two vertical plates of the support frame 2. Vertical through groove 1 is located above the upper rotating cylinder, and vertical through groove 2 is located below the lower rotating cylinder. A telescopic cylinder 1 with the piston rod pointing downward is installed in vertical through groove 1, and a telescopic cylinder 2 with the piston rod pointing upward is installed in vertical through groove 2.

[0012] Optionally, an upper convex water-pressing rod is fixedly installed on the outer end face of the piston rod of the first piston rod of the two telescopic cylinders, and a lower convex water-pressing rod is fixedly installed on the outer end face of the piston rod of the second piston rod of the two telescopic cylinders. The upper convex water-pressing rod is located above the upper rotating cylinder, and the lower convex water-pressing rod is located below the lower rotating cylinder. Several filter holes with their lower surfaces connected are opened on the upper surface of the lower convex water-pressing rod.

[0013] Optionally, several planes are circumferentially formed on the upper rotating cylinder. A placement groove is formed on the middle surface of the plane. The size of the placement groove is adapted to the size of support frame one and support frame two. Two inclined surfaces are symmetrically arranged above the placement groove. A figure-eight-shaped drainage groove is formed on the lower end face of the placement groove. The drainage groove is connected to the placement groove. Drainage holes are formed on both sides of the inner bottom surface of the drainage groove near the outer end face of the upper rotating cylinder.

[0014] Optionally, handles are fixedly installed at both ends of support frame one and support frame two. Fixing holes are symmetrically opened on the outer side of the handles, and two sets of mounting grooves are symmetrically opened on both sides of the plane and the inclined surface. The mounting grooves are adapted to the handles.

[0015] Optionally, two sets of sliding grooves are symmetrically opened on the upper surfaces of both sides of the plane. The sliding grooves are connected to the mounting grooves, and a fixed shaft is fixedly installed on the vertical inner wall of the mounting groove.

[0016] Optionally, the fixing component includes a slider, which is slidably disposed in a groove. A locking post is fixedly disposed on the left end face of the slider, which is adapted to the fixing hole on the side of the handle. A cylindrical groove is provided on the right side face of the slider, and a fixing shaft is slidably disposed in the cylindrical groove. A spring is fixedly connected between the slider and the vertical inner wall of the groove, which is sleeved on the outer surface of the fixing shaft.

[0017] Optionally, the upper surface of the slider is provided with a groove, the inner bottom surface of the groove is provided with a cylindrical groove, a retaining plate is rotatably provided in the groove, and a spring is fixedly connected between the retaining plate and the inner bottom surface of the cylindrical groove. The upper surface of the plane is provided with symmetrical slots near the slider, and the slots are adapted to the retaining plate.

[0018] Optionally, the drainage mechanism includes a drainage frame, a circular fixing plate, and several drainage pipes arranged in a circle. The drainage frame is fixed to the connecting frame, and one end of each drainage pipe passes through a hollow rotating shaft and is connected to a drainage hole, and is fixed to the hollow rotating shaft.

[0019] Optionally, the fixing plate and the drainage frame are rotatably fitted, the outer end of the drainage pipe is fixedly fitted to the fixing plate and connected to the drainage frame, and a connecting pipe is installed on the lower surface of the drainage frame.

[0020] In summary, this utility model has the following beneficial effects:

[0021] 1. In this utility model, the liquid on the upper and lower surfaces of the lithium battery copper foil is absorbed by the water-absorbing sponge block, so as to avoid damage to the surface of the lithium battery copper foil and improve the production efficiency of the lithium battery copper foil.

[0022] 2. In this utility model, when installing the water-absorbing sponge block, simply place the corresponding support frame one or support frame two of the water-absorbing sponge block into the placement groove, and then fix the support frame one or support frame two by rotating the card plate and moving the slider. The disassembly and assembly efficiency is fast, and it is easy to replace the water-absorbing sponge block. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of the present invention;

[0025] Figure 3 In this utility model Figure 1 A sectional view;

[0026] Figure 4 In this utility model Figure 3 Enlarged view of section A;

[0027] Figure 5 In this utility model Figure 2 A sectional view;

[0028] Figure 6 This is a schematic diagram of the upper rotating cylinder of this utility model;

[0029] Figure 7 In this utility model Figure 6 Enlarged detail of point D;

[0030] Figure 8 This is a schematic diagram of the structure of the fixing component of this utility model;

[0031] Figure 9 This is a cross-sectional view of the upper rotating cylinder of this utility model;

[0032] Figure 10 In this utility model Figure 5 A magnified view of the details at point B;

[0033] Figure 11 In this utility model Figure 5 A magnified view of the details at point C.

[0034] In the diagram: 1. Support 1; 2. Drying frame; 3. Support 2; 4. Moisture removal mechanism; 5. Drainage mechanism; 6. Lithium battery copper foil; 7. Fixing assembly; 8. Connecting frame; 21. Exhaust pipe; 31. Vertical channel 1; 311. Telescopic cylinder 1; 312. Upper convex water pressure rod; 32. Drive motor; 321. Gear 1; 33. Hollow rotating shaft; 331. Gear 2; 34. Vertical channel 2; 341. Telescopic cylinder 2; 342. Lower convex water pressure rod; 35. Collection frame; 41. Upper rotating cylinder; 42. Lower rotating cylinder; 43. Cover plate; 44. Water absorption. 441. Sponge block; 442. Support frame one; 443. Support frame two; 444. Handle; 444. Fixing hole; 411. Mounting groove; 412. Slide groove; 413. Flat surface; 414. Fixing shaft; 415. Slot; 416. Placement groove; 417. Drainage groove; 418. Drainage hole; 419. Inclined surface; 51. Drainage frame; 52. Drainage pipe; 53. Fixing plate; 54. Connecting pipe; 71. Slider; 72. Groove; 721. Cylindrical groove one; 73. Clamping plate; 731. Spring one; 74. Clamping post; 75. Cylindrical groove two; 76. Spring two. Detailed Implementation

[0035] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0036] Please see Figure 1-11 The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0037] like Figure 1-2 As shown, a high-efficiency drying device for lithium battery copper foil includes a support 1 and a support 3 fixedly installed on the ground. Two symmetrical drying frames 2 are fixedly installed between two vertical plates of the support 1 by bolts. Drying lamps are installed on the inner walls of the drying frames 2. A moisture removal mechanism 4 is provided between the two vertical plates of the support 3. The moisture removal mechanism 4 includes an upper rotating cylinder 41 and a lower rotating cylinder 42. A connecting frame 8 is fixedly provided on the outer side of the two vertical plates of the support 3. A drainage mechanism 5 is provided below the connecting frame 8. The drainage mechanism 5 is positioned corresponding to the upper rotating cylinder 41.

[0038] The upper rotating cylinder 41 has several support frames 441 arranged around its circumference. Each support frame 441 has a water-absorbing sponge block 44 fixedly installed inside. The inner bottom surface of the support frame 441 has several through holes for drainage. The lower rotating cylinder 42 has several support frames 442 arranged around its circumference. Each support frame 442 has a water-absorbing sponge block 44 fixedly installed inside. The support frames 441 and 442 are the same size.

[0039] Several fixing components 7 are provided on the circumferential surfaces of the upper rotating cylinder 41 and the lower rotating cylinder 42 for installing the first support frame 441 and the second support frame 442. The first support frame 441 and the second support frame 442 can be disassembled and assembled through the fixing components 7, making it convenient to replace the water-absorbing sponge block 44.

[0040] The aforementioned drying lamp and absorbent sponge block 44 can both be purchased on the market according to the required size, and will not be described in detail here.

[0041] like Figure 1-2 As shown, in this embodiment, the two drying frames 2 are tightly fixed together by bolts. The outer side of the connection between the two drying frames 2 is provided with a gap that allows the lithium battery copper foil 6 to pass through. An exhaust pipe 21 communicating with the inner cavity of the drying frame 2 is fixedly installed on the outer side of the upper drying frame 2. The outer end of the exhaust pipe 21 is connected to an external air extraction mechanism. The aforementioned air extraction mechanism is prior art and will not be drawn or described in detail here.

[0042] Specifically, after the lithium battery copper foil 6 is washed, it passes through the water-absorbing sponge block 44 between the upper rotating drum 41 and the lower rotating drum 42 to absorb most of the water stains remaining on the surface of the lithium battery copper foil 6. Then, the lithium battery copper foil 6 enters the drying frame 2, where the remaining small amount of water stains on the surface of the lithium battery copper foil 6 is dried by the drying lamp. The generated water vapor is extracted by the external air extraction mechanism, which can completely remove the water stains remaining on the upper and lower surfaces of the lithium battery copper foil 6.

[0043] like Figure 2-5 As shown, in this embodiment, hollow rotating shafts 33 are symmetrically rotated between the two vertical plates of the second bracket 3. The upper rotating cylinder 41 and the lower rotating cylinder 42 are respectively fixed to the corresponding hollow rotating shafts 33. Two drive motors 32 are fixedly installed on the outer side of one vertical plate of the second bracket 3. Each drive motor 32 is located below the hollow rotating shaft 33 at the corresponding position.

[0044] like Figure 2-5As shown, in this embodiment, a second gear 331 is fixedly arranged on the outer circumferential surface of the hollow rotating shaft 33, and a first gear 321 that meshes with the second gear 331 is fixedly arranged on the output shaft surface of the drive motor 32. The drive motor 32 drives the first gear 321 to rotate, which in turn drives the second gear 331 to rotate, thereby driving the hollow rotating shaft 33 to rotate. The hollow rotating shaft 33 drives the upper rotating cylinder 41 or the lower rotating cylinder 42 on the outer surface to rotate, thereby adjusting the water-absorbing sponge block 44 of the next station to absorb water from the surface of the lithium battery copper foil 6.

[0045] like Figure 2-5 As shown, in this embodiment, a collection frame 35 is fixedly installed on the surface of the horizontal plate of the bracket 2 3. The outer sides of the two vertical plates of the bracket 2 3 are provided with vertical through groove 1 31 and vertical through groove 2 34. Vertical through groove 1 31 is located above the upper rotating cylinder 41, and vertical through groove 2 34 is located below the lower rotating cylinder 42. A telescopic cylinder 1 311 with the piston rod pointing downward is fixedly installed in vertical through groove 1 31, and a telescopic cylinder 2 341 with the piston rod pointing upward is fixedly installed in vertical through groove 2 34.

[0046] The outer end face of the piston rod of the two telescopic cylinders 311 is fixedly provided with an upper convex water pressure rod 312, and the outer end face of the piston rod of the two telescopic cylinders 341 is fixedly provided with a lower convex water pressure rod 342.

[0047] The convex water-pressing rod 312 is set above the upper rotating cylinder 41 and is used to press water onto the water-absorbing sponge block 44 on the surface of the upper rotating cylinder 41.

[0048] The convex water-pressing rod 342 is located below the lower rotating cylinder 42 and is used to press water onto the water-absorbing sponge block 44 on the surface of the lower rotating cylinder 42. The upper surface of the convex water-pressing rod 342 has several filter holes that communicate with the lower surface. After the convex water-pressing rod 342 presses the water-absorbing sponge block 44, the water will flow through the filter holes into the collection frame 35 below.

[0049] like Figure 2 As shown, in this embodiment, both ends of the upper rotating cylinder 41 and the lower rotating cylinder 42 are symmetrically fixedly installed with cover plates 43, and the hollow rotating shaft 33 passes through the cover plates 43 and is fixedly fitted.

[0050] like Figure 6-7 As shown, in this embodiment, the circumferential surface of the upper rotating cylinder 41 is provided with a plurality of planes 413. The middle surface of the plane 413 is provided with a placement groove 416. The size of the placement groove 416 is adapted to the size of the first support frame 441 and the second support frame 442. Two inclined surfaces 419 are symmetrically arranged above the placement groove 416. The inclined surfaces 419 can facilitate the water absorption sponge block 44 to be squeezed so that the water inside will not flow out to other places.

[0051] The lower end face of the placement groove 416 is provided with a figure-eight-shaped drainage groove 417, and the drainage groove 417 is connected to the placement groove 416. After the water-absorbing sponge in the upper support frame 441 is squeezed, the water absorbed inside will be discharged into the drainage groove 417 through the drainage hole on the bottom surface of the support frame 441.

[0052] Drainage holes 418 are provided on both sides of the inner bottom surface of the drainage trough 417 near the outer end face of the upper rotating cylinder 41, and water in the drainage trough 417 can be discharged into the upper rotating cylinder 41 through the drainage holes 418.

[0053] like Figure 6 As shown, in this embodiment, handles 443 are fixedly provided at both ends of support frame 1 441 and support frame 2 442, and fixing holes 444 are symmetrically provided on the outer side of the handles 443.

[0054] like Figure 6-7 As shown, in this embodiment, two sets of mounting slots 411 are symmetrically provided on both sides of the plane 413 and the inclined surface 419. The mounting slots 411 are adapted to the handle 443. After the support frame 1 441 or the support frame 2 442 is placed in the placement slot 416, the handle 443 can enter the mounting slot 411.

[0055] like Figure 6-7 As shown, in this embodiment, two sets of sliding grooves 412 are symmetrically opened on the upper surfaces of both sides of the plane 413. The sliding grooves 412 are connected to the mounting grooves 411, and a fixed shaft 414 is fixedly installed on the vertical inner wall of the mounting grooves 411.

[0056] like Figure 8 As shown, in this embodiment, the fixing component 7 includes a slider 71, which is slidably disposed in the slide groove 412. A locking post 74 is fixedly disposed on the left end face of the slider 71, which is adapted to the fixing hole 444 on the side of the handle 443. A cylindrical groove 75 is opened on the right side face of the slider 71, and the fixing shaft 414 is slidably disposed in the cylindrical groove 75. A spring 76, which is sleeved on the outer surface of the fixing shaft 414, is fixedly connected between the slider 71 and the inner wall of the slide groove 412. The spring 76 helps the slider 71 to reset.

[0057] like Figure 6-7 As shown, in this embodiment, the upper surface of the slider 71 is provided with a groove 72, the inner bottom surface of the groove 72 is provided with a cylindrical groove 721, a retaining plate 73 is rotatably disposed in the groove 72, and a spring 731 is fixedly connected between the retaining plate 73 and the inner bottom surface of the cylindrical groove 721. The spring 731 is used to help the retaining plate 73 return to the groove 72 after rotation.

[0058] like Figure 6-8As shown, in this embodiment, the upper surface of the plane 413 is symmetrically provided with slots 415 near the slider 71. The slots 415 are adapted to the card plate 73. When the card plate 73 enters the slot 415, it can be turned by hand and rotated in the groove 72.

[0059] Specifically, support frame 1 441 or support frame 2 442 is placed into the corresponding placement slot 416. At this time, the locking plate 73 is located away from the handle 443, and the fixing hole 444 on the side of the handle 443 corresponds to the locking post 74. Then, the locking plate 73 is moved to rotate and leave the slot 415. At this time, spring 1 731 is stretched, and spring 2 76 returns from the compressed state to its original length, driving the slider 71 to move towards the handle 443 until the locking post 74 enters the fixing hole 444, fixing the position of the handle 443. Then, spring 1 731 returns from the stretched state to its original length, driving the locking plate 73 to return to the slot 415. At this time, the position of the handle 443 is fixed, and support frame 1 441 or support frame 2 442 is stably installed in the placement slot 416.

[0060] like Figure 2 , Figure 10 and Figure 11 As shown, in this embodiment, the drainage mechanism 5 includes a drainage frame 51, a circular fixing plate 53, and a plurality of drainage pipes 52 arranged in a circle. The drainage frame 51 is fixed to the connecting frame 8. One end of the plurality of drainage pipes 52 passes through the hollow rotating shaft 33 and is connected to the drainage hole 418, and is fixed to the hollow rotating shaft 33. The rotation of the hollow rotating shaft 33 can synchronously drive the drainage pipes 52 to rotate.

[0061] like Figure 10 and Figure 11 As shown, in this embodiment, the fixing plate 53 is rotatably engaged with the drainage frame 51, the outer end of the drainage pipe 52 is fixedly engaged with the fixing plate 53 and connected to the drainage frame 51, and a connecting pipe 54 is installed on the lower surface of the drainage frame 51. The outer end of the connecting pipe 54 is connected to the pumping mechanism. The above-mentioned pumping mechanism is the prior art and will not be drawn or described in detail here.

[0062] Specifically, the squeezed water enters the drain pipe 52 through the drain trough 417, then enters the drain frame 51 through the drain pipe 52, and then the water in the drain frame 51 is extracted by the pumping mechanism.

[0063] The working process of this embodiment is as follows:

[0064] First, the washed lithium-ion copper foil 6 passes through the water-absorbing sponge block 44 between the upper rotating drum 41 and the lower rotating drum 42. The water-absorbing sponge block 44 absorbs most of the water stains on the upper and lower surfaces of the lithium-ion copper foil 6. Then, the lithium-ion copper foil 6 enters between the two drying frames 2. The remaining small amount of water stains on the surface of the lithium-ion copper foil 6 is dried by the drying lamp. The generated water vapor is extracted by the external air extraction mechanism.

[0065] Furthermore, when the absorbent sponge block 44 is about to reach its water absorption limit, the upper rotating cylinder 41 and the lower rotating cylinder 42 are rotated to replace the absorbent sponge block 44 at the next station. After absorbing water, the absorbent sponge block 44 rotates twice and then rotates to the water pressing station. Then, the upper convex water pressing rod 312 and the lower convex water pressing rod 342 press the water in the upper rotating cylinder 41 and the lower rotating cylinder 42. After being squeezed, the water in the absorbent sponge block 44 in the upper rotating cylinder 41 is discharged into the drainage trough 417 through several drainage holes on the bottom surface of the support frame 441, and then enters the drainage frame 51 through the drainage pipe 52, and is collected centrally by the external water pumping mechanism. After being squeezed, the water in the absorbent sponge block 44 in the lower rotating cylinder 42 flows into the collection frame 35 below through the water filter holes on the surface of the lower convex water pressing rod 342, completing the collection.

[0066] 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.

[0067] 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.

[0068] 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 high-efficiency drying device for lithium battery copper foil, characterized in that: It includes a support frame 1 and a support frame 2. The support frame 1 has two symmetrical drying frames between its two vertical plates. The support frame 2 has a moisture removal mechanism between its two vertical plates. The moisture removal mechanism includes an upper rotating cylinder, a lower rotating cylinder, several support frames 1 and several support frames 2. The support frames 1 are arranged in a circle on the circumferential surface of the upper rotating cylinder, and the support frames 2 are arranged in a circle on the circumferential surface of the lower rotating cylinder. Connecting frames are fixedly installed on the outer sides of the two vertical plates of the second bracket. A drainage mechanism is installed below the connecting frames, and the position of the drainage mechanism corresponds to that of the upper rotating cylinder. Both support frame one and support frame two are equipped with water-absorbing sponge blocks; Several fixing components for mounting support frame one and support frame two are provided on the circumferential surfaces of both the upper and lower rotating cylinders.

2. The high-efficiency drying device for lithium-ion battery copper foil according to claim 1, characterized in that: Hollow rotating shafts are symmetrically arranged between the two vertical plates of the support frame 2. The upper rotating cylinder and the lower rotating cylinder are fixedly engaged with the corresponding hollow rotating shafts. A collection frame is provided on the surface of the horizontal plate of the support frame 2. Vertical through groove 1 and vertical through groove 2 are opened on the outer side of the two vertical plates of the support frame 2. Vertical through groove 1 is located above the upper rotating cylinder, and vertical through groove 2 is located below the lower rotating cylinder. A telescopic cylinder 1 with the piston rod pointing downward is installed in vertical through groove 1, and a telescopic cylinder 2 with the piston rod pointing upward is installed in vertical through groove 2.

3. The high-efficiency drying device for lithium battery copper foil according to claim 2, characterized in that: Two telescopic cylinders have an upper convex water-pressing rod fixedly installed on the outer end face of the piston rod of the first cylinder, and a lower convex water-pressing rod fixedly installed on the outer end face of the piston rod of the second cylinder. The upper convex water-pressing rod is located above the upper rotating cylinder, and the lower convex water-pressing rod is located below the lower rotating cylinder. The upper surface of the lower convex water-pressing rod has several filter holes that are connected to the lower surface.

4. The high-efficiency drying device for lithium battery copper foil according to claim 1, characterized in that: The upper rotating cylinder has several planes circumferentially formed on its circumferential surface. The middle surface of each plane has a placement groove, the size of which is adapted to the size of support frame one and support frame two. Two inclined surfaces are symmetrically arranged above the placement groove. The lower end of the placement groove has a figure-eight shaped drainage groove that is connected to the placement groove. Drainage holes are provided on both sides of the inner bottom surface of the drainage groove near the outer end of the upper rotating cylinder.

5. The high-efficiency drying device for lithium battery copper foil according to claim 4, characterized in that: Both ends of support frame one and support frame two are fixedly equipped with handles. The outer side of the handle is symmetrically provided with fixing holes, and two sets of mounting grooves are symmetrically provided on both sides of the flat and inclined surfaces. The mounting grooves are adapted to the handles.

6. The high-efficiency drying device for lithium battery copper foil according to claim 5, characterized in that: Two sets of sliding grooves are symmetrically opened on the upper surfaces of both sides of the plane. The sliding grooves are connected to the mounting grooves, and the vertical inner wall of the mounting grooves is fixedly equipped with a fixing shaft.

7. The high-efficiency drying device for lithium battery copper foil according to claim 4, characterized in that: The fixing component includes a slider, which is slidably disposed in a groove. A locking post is fixedly disposed on the left end face of the slider, which is adapted to the fixing hole on the side of the handle. A cylindrical groove is provided on the right side face of the slider, and a fixing shaft is slidably disposed in the cylindrical groove. A spring is fixedly connected between the slider and the vertical inner wall of the groove, which is sleeved on the outer surface of the fixing shaft.

8. The high-efficiency drying device for lithium battery copper foil according to claim 7, characterized in that: The upper surface of the slider has a groove, the inner bottom surface of the groove has a cylindrical groove, a retaining plate is rotatably installed in the groove, and a spring is fixedly connected between the retaining plate and the inner bottom surface of the cylindrical groove. The upper surface of the plane has symmetrical slots near the slider, and the slots are adapted to the retaining plate.

9. The high-efficiency drying device for lithium battery copper foil according to claim 2, characterized in that: The drainage mechanism includes a drainage frame, a circular fixing plate, and several drainage pipes arranged in a circle. The drainage frame is fixed to the connecting frame, and one end of each drainage pipe passes through a hollow rotating shaft and is connected to a drainage hole, and is fixed to the hollow rotating shaft.

10. The high-efficiency drying device for lithium battery copper foil according to claim 9, characterized in that: The fixed plate and the drainage frame are rotatably fitted together, the outer end of the drainage pipe is fixedly fitted together with the fixed plate and connected to the drainage frame, and a connecting pipe is installed on the lower surface of the drainage frame.

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