Pre-calendering device for pole piece production

Abstract

The invention discloses a pre-calendering device for pole piece production, and particularly relates to the technical field of calendering devices.The pre-calendering device comprises a base, a feeding structure is arranged on the left portion of the upper end of the base, a calendering structure is arranged in the middle of the upper end of the base, a cleaning structure is arranged on the upper portion of the inner surface of the calendering structure, and a discharging structure is arranged on the right portion of the upper end of the base. According to the pre-calendering device for pole piece production, a battery pole piece needing to be calendered is introduced into the calendering structure through the feeding structure and finally conveyed out from the discharging structure, the pole piece is kept tight through cooperation of the feeding structure and the discharging structure, meanwhile, the pole piece is calendered through the calendering structure, and the production efficiency of the pole piece is improved. Chippings, dust and the like inevitably exist in the calendaring process, and the calendaring structure is continuously cleaned through the cleaning structure, so that the dust is prevented from influencing the calendaring effect; and meanwhile, the calendering requirements of different thicknesses can be met by adjusting the calendering structure, and the application range of equipment is widened.

Description

Technical Field

[0001] The invention relates to the technical field of calendering devices, and in particular to a pre-calendering device for pole piece production. Background Art

[0002] The calendering device for sheet production is a key equipment used to manufacture battery pole sheets, especially in the production process of lithium-ion batteries. The pole sheet is the core component of the battery, usually composed of metal foil (such as copper foil or aluminum foil), and its surface is coated with active materials (such as positive electrode materials or negative electrode materials). The main function of the calendering device is to compact the pole sheet coated with active materials to improve its density and thickness consistency, thereby increasing the capacity and performance of the battery.

[0003] Chinese patent announcement No. CN218963612U discloses a pre-calendering device for pole piece production, comprising a base, on which two rolling mechanisms are arranged opposite to each other, and a placement area for placing the pole piece is formed between the two rolling mechanisms; the rolling mechanism comprises a slide, on which an upper rolling assembly and a lower rolling assembly are arranged opposite to each other, and a first driving mechanism for driving the upper rolling assembly and the lower rolling assembly to pre-press the pole ear is arranged on the slide.

[0004] However, the existing pre-calendering device is easily contaminated with dust on the calendering roller during the calendering process. The dust will further contaminate the electrode and even produce additional indentations on the surface of the electrode, affecting the calendering quality. At the same time, the existing calendering device cannot adapt to calendering operations of different thicknesses and has a small scope of application. Summary of the invention

[0005] The main purpose of the present invention is to provide a pre-calendering device for pole piece production, which can effectively solve the problems of existing devices that dust will be contaminated on the calendering rollers during the calendering process, affecting the flatness of the pole piece and the inability to adjust the calendering thickness.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A pre-calendering device for pole piece production comprises a base, a loading structure is arranged on the left upper end of the base, a calendering structure is arranged on the middle upper end of the base, a cleaning structure is arranged on the upper inner surface of the calendering structure, and a unloading structure is arranged on the right upper end of the base.

[0008] Preferably, the loading structure includes two support plates that are symmetrically distributed front and back and fixedly connected to the upper end of the base, the right side of one end of the two support plates that are close to each other is jointly rotatably connected to a feed roller, the left side of one end of the two support plates that are close to each other is jointly rotatably connected to a passing roller, the right lower side of one end of the two support plates that are close to each other is jointly rotatably connected to a tensioning roller, and the rear ends of the outer surfaces of the feed roller, the passing roller and the tensioning roller are jointly connected through a belt transmission. The two support plates are provided with a buffer slide groove at a position between the tensioning roller and the passing roller, the inner surfaces of the two buffer slide grooves are both slidably connected to a buffer slider, the upper and lower ends of the two buffer sliders are fixedly connected to a buffer telescopic rod that is fixedly connected to the inner wall of the adjacent buffer slide groove, the inner surfaces of the two buffer sliders are jointly rotatably connected to a buffer roller, and the front end of the passing roller is fixedly connected to a driving motor that is fixedly connected to the adjacent support plate.

[0009] Preferably, the unloading structure includes support plates three that are symmetrically distributed at front and rear ends and fixedly connected to the upper end of the base, the left sides of the two support plates three ends that are close to each other are rotatably connected to a discharging roller, and the right sides of the two support plates three ends that are close to each other are rotatably connected to a tensioning roller two, the tensioning roller two and the rear part of the outer surface of the discharging roller are connected together through a belt transmission, the front end of the tensioning roller two is fixedly connected to a driving motor three that is fixedly connected to the adjacent support plate three, the middle parts of the two support plates three are each provided with a buffer chute two that passes through the front and back, the inner surfaces of the two buffer chute two are slidably connected to a buffer slider two, the inner surfaces of the two buffer sliders two are rotatably connected to a buffer roller two, and the upper and lower ends of the two buffer sliders two are fixedly connected to a buffer telescopic rod two that is fixedly connected to the inner wall of the adjacent buffer chute two.

[0010] Preferably, the calendering structure includes two support plates which are symmetrically distributed frontward and rearward and fixedly connected to the upper end of the base, the upper parts of the ends of the two support plates which are close to each other are commonly fixedly connected to a support shaft, an adjusting drive assembly is provided at the upper end of the base, an adjusting assembly is provided on the inner surface of the adjusting drive assembly, the front end of the two support plates located at the front is fixedly connected to two driving motors which are transmission-connected to the adjusting assembly, the ends of the two support plates which are close to each other are commonly rotatably connected to support rollers which are symmetrically distributed leftward and rightward, and the upper parts of the ends of the two support plates which are close to each other are both fixedly connected to the cleaning structure.

[0011] Preferably, the adjustment assembly includes a calendering shaft rotatably connected to two support plates on both sides, the rear part of the outer surface of the central axis of the calendering shaft penetrates through the second support plate located at the rear, extends to its rear end and is transmission-connected to the cleaning structure, and the parts of the two ends of the two support plates located at the lower side of the calendering shaft that are close to each other are provided with limiting grooves, the inner surfaces of the two limiting grooves are slidably connected to limiting sliders, the inner surfaces of the two limiting sliders are rotatably connected to the working shaft, and the outer surfaces on the front and rear sides of the central axis of the working shaft are rotatably connected to the adjustment drive assembly.

[0012] Preferably, the adjustment component also includes a gear 1 fixedly connected on the front and rear sides of the central axis of the calendering shaft, two gear 1 outer surfaces on the right side are respectively meshed with gear 2, two gear 2 outer surfaces lower parts are respectively meshed with gear 3, two gear 3 outer surfaces lower parts are respectively meshed with gear 4 fixedly connected to the outer surface of the central axis of the adjacent working shaft, the inner surfaces of the gear 2 and gear 3 on the same side are rotatably connected with a connecting plate 1 fixedly connected to the inner wall of the adjacent support plate 2, the gear 3 and gear 4 on the same side are rotatably connected with a connecting plate 2 at one end close to the support plate 2, the connecting plate 1 is fixedly connected to the adjacent support plate 2 through a connecting shaft, and the inner surface of the connecting plate 2 is rotatably connected to the outer surface of the connecting shaft of the connecting plate 1.

[0013] Preferably, the adjustment drive assembly includes a hydraulic cylinder fixedly connected to the bottom wall of the inner cavity of the base, the piston rod at the output end of the hydraulic cylinder is fixedly connected to a U-shaped rod, the lower end of the horizontal part of the U-shaped rod is symmetrically fixedly connected to a telescopic limit rod fixedly connected to the upper end of the base, and the vertical parts of the U-shaped rod are rotatably connected to the central axis of the adjacent working shaft.

[0014] Preferably, the cleaning structure includes a shielding box fixedly connected to two support plates on both sides, a dust suction device is fixedly connected to the top wall of the inner surface of the shielding box, an abutment assembly is provided at the lower end of the dust suction device, and a cleaning assembly is provided at the lower end of the abutment assembly that is in close contact with the outer surface of the adjacent connecting block.

[0015] Preferably, the abutment assembly includes two connecting blocks symmetrically distributed frontally and rearly, the ends of the two connecting blocks away from each other are symmetrically connected to connecting rods for rotation up and down, the two connecting rods located at the upper part are rotationally connected to the lower end of the shielding box, and the two connecting rods located at the lower part are rotationally connected to the upper end of the cleaning assembly, and the ends of the two connecting blocks close to each other are provided with limiting grooves, the inner surfaces of the two limiting grooves are slidably connected to sliding rods, and the ends of the two limiting grooves close to each other are fixedly connected to compression springs.

[0016] Preferably, the cleaning assembly includes a contact box rotatably connected to the two connecting rods located at the bottom, a cleaning shaft fixedly connected to the middle of the inner surface of the contact box, the rear end of the cleaning shaft penetrates the inner cavity of the contact box and extends to the rear end of the contact box and is fixedly connected to a synchronous wheel connected to the connecting block through a belt drive, a dust suction pipe is fixedly connected to the lower right side of the inner surface of the contact box, a dust suction port is provided at the lower part of the side of the dust suction pipe close to the cleaning shaft, a scraping pipe is fixedly connected to the upper right part of the inner surface of the contact box, a groove matching the dust suction pipe is provided at the upper part of the outer surface of the scraping pipe close to the contact box, the scraping pipe and the dust suction pipe are jointly fixedly connected to a connecting pipe connected to the shielding box, the air inlet and outlet of the shielding box both penetrate the second support plate located at the rear and extend to the rear end of the second support plate, and the lower end of the contact box is rotatably connected to rollers tightly attached to the outer surface of the connecting block in a rectangular distribution.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention introduces the battery pole piece to be rolled into the rolling structure through the feeding structure, and finally transfers it out from the unloading structure. The cooperation of the feeding structure and the unloading structure is used to keep the pole piece taut. At the same time, the pole piece is rolled through the rolling structure. In the rolling process, there will inevitably be debris, dust, etc. The rolling structure is continuously cleaned by the cleaning structure to avoid the dust from affecting the rolling effect. At the same time, the rolling structure can be adjusted to meet the rolling requirements of different thicknesses, thereby improving the use range of the equipment.

[0019] 2. The present invention delivers the pole piece into the calendering structure through the action of the tensioning roller 1, the buffer roller 1 and the passing roller in the feeding structure, and leads it out through the action of the tensioning roller 2 and the discharging roller to realize automatic material feeding. At the same time, the buffer roller 2 and the buffer roller 1 are set to keep the pole piece taut at all times, ensuring that the pole piece in the calendering structure is in a taut state, avoiding errors and offsets caused by the deformation of the pole piece during the calendering process that affect the calendering effect.

[0020] 3. The present invention adjusts the cooperation between the driving component and the adjusting component. When the hydraulic cylinder pushes the U-shaped rod to rise or fall, the spacing between the calendering shaft and the working shaft can be adjusted while maintaining synchronous transmission by utilizing the cooperation between the connecting plate 1 and the connecting plate 2, thereby adapting to the calendering requirements of different thicknesses and improving the use range of the equipment.

[0021] 4. The present invention utilizes the effect of the abutment component to cause the shielding box to be in close contact with the surface of the calendering shaft, and at the same time drives the shielding box to operate through the transmission effect between the calendering shaft and the shielding box. During the calendering process of the calendering shaft, the surface of the calendering shaft is continuously cleaned to avoid additional indentations on the surface of the pole piece due to contamination of debris and dust during the calendering process, thereby affecting the quality of the pole piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the feeding structure of the present invention;

[0024] Figure 3 It is a rear view structural schematic diagram of the feeding structure of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the blanking structure and the calendering structure of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the regulating assembly of the present invention;

[0027] Figure 6 It is a partial structural schematic diagram of the regulating component of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the cleaning structure of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the abutment assembly of the present invention;

[0030] Fig. 9 It is a schematic diagram of the structure of the cleaning component of the present invention;

[0031] Fig.10 It is a schematic diagram of the connection relationship between the cleaning component and the calendering shaft of the present invention;

[0032] Fig.11 It is a schematic diagram of the cross-sectional structure of the cleaning component of the present invention.

[0033] In the figure: 1. base; 2. feeding structure; 21. support plate 1; 22. buffer slide 1; 23. buffer telescopic rod 1; 24. buffer slide block 1; 25. feed roller; 26. tension roller 1; 27. drive motor 1; 28. buffer roller 1; 29. ​​over roller; 3. calendering structure; 31. support plate 2; 32. support shaft; 33. support roller; 34. adjustment drive assembly; 341. hydraulic cylinder; 342. telescopic limit rod; 343. U-shaped rod; 35. adjustment assembly; 350. limit groove; 351. working shaft; 352. calendering shaft; 353. gear 1; 354. gear 2; 355. connecting plate 1; 356. gear 3; 357. gear 4; 358. connecting plate 2; 359. Limiting slider; 36. Driving motor 2; 4. Cleaning structure; 41. Shielding box; 42. Dust collection device; 43. Abutment assembly; 431. Connecting rod; 432. Connecting block; 433. Limiting slide; 434. Sliding rod; 435. Compression spring; 44. Cleaning assembly; 441. Synchronous wheel; 442. Contact box; 443. Cleaning shaft; 444. Dust collection pipe; 445. Scraping pipe; 446. Connecting pipe; 447. Dust collection port; 448. Roller; 5. Unloading structure; 51. Support plate 3; 52. Buffer slide 2; 53. Buffer telescopic rod 2; 54. Buffer roller 2; 55. Buffer slider 2; 56. Discharging roller; 57. Driving motor 3; 58. Tensioning roller 2. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] Embodiment 1, as Figure 1 As shown, a pre-calendering device for pole piece production includes a base 1, a loading structure 2 is arranged on the left upper end of the base 1, a calendering structure 3 is arranged on the middle upper end of the base 1, a cleaning structure 4 is arranged on the upper inner surface of the calendering structure 3, and a unloading structure 5 is arranged on the right upper end of the base 1.

[0036] During the operation of this embodiment, the battery electrode to be rolled is first introduced into the rolling structure 3 through the feeding structure 2, and finally transmitted from the unloading structure 5. The cooperation of the feeding structure 2 and the unloading structure 5 is used to keep the electrode taut, and at the same time, the electrode is rolled by the rolling structure 3. In the rolling process, there will inevitably be debris, dust, etc. The rolling structure 3 is continuously cleaned by the cleaning structure 4 to avoid the dust from affecting the rolling effect. At the same time, the rolling structure 3 can be adjusted to meet the rolling requirements of different thicknesses, thereby improving the use range of the equipment.

[0037] Embodiment 2: Based on Embodiment 1, this embodiment delivers the electrode piece into the calendering structure 3 through the action of the tensioning roller 26, the buffer roller 28 and the passing roller 29 in the feeding structure 2, and leads it out through the action of the tensioning roller 58 and the discharging roller 56, so as to realize automatic feeding. Meanwhile, the buffer roller 54 and the buffer roller 28 are arranged so that the electrode piece can always be kept taut, thereby ensuring that the electrode piece in the calendering structure 3 is in a taut state, and avoiding errors and offsets caused by the deformation of the electrode piece during the calendering process that affect the calendering effect.

[0038] Specifically, to achieve inward feeding, refer to Figure 2 and Figure 3 The feeding structure 2 includes two support plates 21 symmetrically distributed front and back and fixedly connected to the upper end of the base 1, the right side of the ends of the two support plates 21 close to each other are connected to a feed roller 25 for common rotation, the left part of the ends of the two support plates 21 close to each other are connected to a roller 29 for common rotation, the lower right side of the ends of the two support plates 21 close to each other are connected to a tensioning roller 26 for common rotation, the rear parts of the outer surfaces of the feed roller 25, the roller 29 and the tensioning roller 26 are connected together through a belt transmission, the two support plates 21 are provided with a buffer chute 22 at a position between the tensioning roller 26 and the roller 29, the inner surfaces of the two buffer chutes 22 are both slidably connected with buffer sliders 24, the upper and lower ends of the two buffer sliders 24 are fixedly connected with a buffer telescopic rod 23 fixedly connected to the inner wall of the adjacent buffer chute 22, the inner surfaces of the two buffer sliders 24 are connected to a buffer roller 28 for common rotation, and the front end of the roller 29 is fixedly connected with a driving motor 27 fixedly connected to the adjacent support plate 21.

[0039] Further, to achieve outward feeding, see Figure 4 The unloading structure 5 includes support plates 3 51 symmetrically distributed at the front and rear ends and fixedly connected to the upper end of the base 1, the left side of the ends of the two support plates 3 51 close to each other are rotatably connected with a discharging roller 56, and the right side of the ends of the two support plates 3 51 close to each other are rotatably connected with a tensioning roller 2 58, the tensioning roller 2 58 and the rear part of the outer surface of the discharging roller 56 are connected together through a belt transmission, the front end of the tensioning roller 2 58 is fixedly connected to a driving motor 3 57 fixedly connected to the adjacent support plate 3 51, and the middle parts of the two support plates 3 51 are both provided with a buffer chute 2 52 that runs through the front and back, the inner surfaces of the two buffer chute 2 52 are both slidably connected with a buffer slider 2 55, the inner surfaces of the two buffer sliders 2 55 are rotatably connected with a buffer roller 2 54, and the upper and lower ends of the two buffer sliders 2 55 are fixedly connected with a buffer telescopic rod 2 53 fixedly connected to the inner wall of the adjacent buffer chute 2 52.

[0040] The pole piece passes around the feed roller 25 and enters the tension roller 26 below, passes over the lower part of the tension roller 26 and is wound on the surface of the buffer roller 28, then passes around the roller 29 and enters the calendering structure 3;

[0041] After calendering is completed in the calendering structure 3, the steel sheet passes under the tensioning roller 58 and is wound around the outer surface of the buffer roller 54, and then passes under the discharge roller 56 to enter the next process or be rewound.

[0042] In addition, the buffer slider 2 55 and the buffer telescopic rod 2 53 arranged on the outer surface of the buffer roller 2 54 cooperate to pull the buffer roller 2 54 to move upward when there is no external force. Similarly, the buffer slider 1 24 and the buffer telescopic rod 1 23 on the outer surface of the buffer roller 1 28 have the same effect.

[0043] When the pole piece is deformed due to a change in length caused by rolling, the buffer roller 2 54 and the buffer roller 1 28 will be displaced to adapt to the length change, so that the pole piece is always kept in a taut state.

[0044] Embodiment 3: Based on embodiment 2, this embodiment further adjusts the cooperation between the driving assembly 34 and the adjusting assembly 35. When the hydraulic cylinder 341 pushes the U-shaped rod 343 to rise or fall, the distance between the calendering shaft 352 and the working shaft 351 can be adjusted while maintaining synchronous transmission by utilizing the cooperation between the connecting plate 1 355 and the connecting plate 2 358, thereby adapting to the calendering requirements of different thicknesses and improving the use range of the equipment.

[0045] Specifically, to achieve the rolling of the battery pole piece, refer to Figure 4 The calendering structure 3 includes a supporting plate 2 31 which is symmetrically distributed frontward and rearward and fixedly connected to the upper end of the base 1. The upper parts of the ends of the two supporting plates 31 which are close to each other are commonly fixedly connected with a supporting shaft 32. An adjusting driving assembly 34 is provided at the upper end of the base 1. An adjusting assembly 35 is provided on the inner surface of the adjusting driving assembly 34. A driving motor 2 36 which is transmission-connected to the adjusting assembly 35 is fixedly connected to the front end of the supporting plate 2 31 located at the front. The ends of the two supporting plates 31 which are close to each other are commonly rotatably connected with supporting rollers 33 which are symmetrically distributed leftward and rightward. The upper parts of the ends of the two supporting plates 31 which are close to each other are both fixedly connected to the cleaning structure 4.

[0046] The left and right support rollers 33 are used to support the pole piece so that it can remain horizontal when entering the range of the adjustment component 35 to ensure the calendering effect. The adjustment component 35 can calender the pole piece under the action of the second drive motor 36, and the thickness of the calendering of the adjustment component 35 can be adjusted synchronously under the action of the adjustment drive component 34, further improving the use range of the equipment.

[0047] Further, in order to adjust the calendering thickness in coordination with the adjustment component 35, refer to Figure 5The adjustment drive assembly 34 includes a hydraulic cylinder 341 fixedly connected to the bottom wall of the inner cavity of the base 1, and the piston rod at the output end of the hydraulic cylinder 341 is fixedly connected to a U-shaped rod 343. The lower end of the horizontal part of the U-shaped rod 343 is symmetrically fixedly connected to a telescopic limit rod 342 fixedly connected to the upper end of the base 1, and the vertical parts of the U-shaped rod 343 are rotatably connected to the central axis of the adjacent working shaft 351.

[0048] When the hydraulic cylinder 341 extends, it can drive the U-shaped rod 343 to rise, thereby cooperating with the adjusting component 35 to adjust the thickness, so that the thickness is reduced; when the U-shaped rod 343 retracts, the U-shaped rod 343 descends, so that the thickness rolled by the adjusting component 35 increases.

[0049] Further, to adjust the rolling thickness, refer to Figure 5 and Figure 6 The adjusting assembly 35 includes a calendering shaft 352 rotatably connected to the supporting plates 31 on both sides. The rear part of the outer surface of the central axis of the calendering shaft 352 passes through the supporting plate 31 located at the rear, extends to its rear end and is transmission-connected to the cleaning structure 4. The parts of the two supporting plates 31 located at the lower side of the calendering shaft 352 at the ends close to each other are both provided with limiting grooves 350. The inner surfaces of the two limiting grooves 350 are both slidably connected to the limiting sliders 359. The inner surfaces of the two limiting sliders 359 are both rotationally connected to the working shaft 351. The outer surfaces of the front and rear sides of the central axis of the working shaft 351 are both rotationally connected to the adjusting driving assembly 34.

[0050] The adjusting assembly 35 also includes a gear 1 353 fixedly connected to the front and rear sides of the central axis of the calendering shaft 352, the outer surfaces of the two gear 1s 353 are respectively meshed with gear 2s 354 on the right sides, the outer surfaces of the two gear 2s 354 are respectively meshed with gear 3s 356 at the lower parts, the outer surfaces of the two gear 3s 356 are respectively meshed with gear 4s 357 fixedly connected to the outer surfaces of the central axes of the adjacent working shafts 351 at the lower parts, the inner surfaces of the two gear 3s 356 on the same side are respectively meshed with a connecting plate 1 355 fixedly connected to the inner wall of the adjacent support plate 2 31, the gear 3s 356 and the gear 4s 357 on the same side are jointly rotatably connected with a connecting plate 2 358 at one end close to the support plate 2 31, the connecting plate 1 355 is fixedly connected to the adjacent support plate 2 31 through a connecting shaft, and the inner surface of the connecting plate 2 358 is rotatably connected to the outer surface of the connecting shaft of the connecting plate 1 355.

[0051] In summary, the rise of the U-shaped rod 343 drives the gear 2 354 and the limit slider 359 to rise. At this time, the limit slider 359 rises in the limit groove 350, so that the connecting plate 2 358 rotates around the connecting axis between the connecting plate 2 358 and the connecting plate 1 355. At this time, the distance between the calendering axis 352 and the working axis 351 gradually becomes shorter, but due to the restrictions of the connecting plate 2 358 and the connecting plate 1 355, the gear 1 353, the gear 2 354, the connecting plate 1 355 and the gear 4 357 maintain the meshing relationship unchanged; the same applies when the U-shaped rod 343 descends.

[0052] Embodiment 4: Based on Embodiment 3, this embodiment utilizes the function of the abutment component 43 to make the shielding box 41 close to the surface of the calendering shaft 352, and at the same time drives the shielding box 41 to operate through the transmission action between the calendering shaft 352 and the shielding box 41. During the rotation and calendering process of the calendering shaft 352, the surface of the calendering shaft 352 is continuously cleaned to avoid additional indentations on the surface of the electrode due to contamination of debris and dust during the calendering process, thereby affecting the quality of the electrode.

[0053] Specifically, to clean the surface of the calendering shaft 352, refer to Figure 7 The cleaning structure 4 includes a shielding box 41 fixedly connected to the supporting plates 31 on both sides, a dust collecting device 42 is fixedly connected to the top wall of the inner surface of the shielding box 41, an abutting component 43 is arranged at the lower end of the dust collecting device 42, and a cleaning component 44 is arranged at the lower end of the abutting component 43, which is in close contact with the outer surface of the adjacent connecting block 432.

[0054] The dust suction device 42 is a conventional fan that can extract dust from the cleaning component 44. This type of fan is a conventional technical means in the prior art, and its specific principle and installation method will not be displayed or elaborated in the present invention.

[0055] Further, in order to always keep the shielding box 41 in close contact with the surface of the calendering shaft 352, refer to Figure 8 and Fig. 9 The abutment assembly 43 includes two connecting blocks 432 symmetrically distributed frontally and rearly, and the ends of the two connecting blocks 432 that are away from each other are symmetrically connected to the connecting rods 431 for rotation up and down, the two connecting rods 431 located at the upper part are rotationally connected to the lower end of the shielding box 41, and the two connecting rods 431 located at the lower part are rotationally connected to the upper end of the cleaning assembly 44, and the ends of the two connecting blocks 432 that are close to each other are provided with limiting grooves 433, and the inner surfaces of the two limiting grooves 433 are slidably connected with sliding rods 434, and the sliding rods 434 are mainly used to limit the running trajectory of the limiting grooves 433, and the ends of the two limiting grooves 433 that are close to each other are fixedly connected with compression springs 435.

[0056] The compression spring 435 will push the limiting slide groove 433 toward both sides, making them move away from each other. In this process, it will push the connecting rods 431 on the front and rear sides to expand in a V shape, thereby pushing the cleaning assembly 44 and the dust collection device 42 away from each other, so that the shielding box 41 is always in contact with the surface of the calendering shaft 352.

[0057] Further, in order to clean the surface of the calendering shaft 352, see Fig. 9 , Fig.10 and Fig.11 The cleaning assembly 44 includes a contact box 442 rotatably connected to two connecting rods 431 located at the bottom, a cleaning shaft 443 is fixedly connected to the middle of the inner surface of the contact box 442, the rear end of the cleaning shaft 443 passes through the inner cavity of the contact box 442 and extends to the rear end of the contact box 442 and is fixedly connected to a synchronous wheel 441 connected to the connecting block 432 through a belt drive, a dust suction pipe 444 is fixedly connected to the lower right side of the inner surface of the contact box 442, and a dust suction port 447 is opened at the lower part of the dust suction pipe 444 near the cleaning shaft 443, and the contact A scraper tube 445 is fixedly connected to the upper right part of the inner surface of the box 442, and a groove matched with the dust suction tube 444 is opened on the upper part of the outer surface of the scraper tube 445 close to the contact box 442. The scraper tube 445 and the dust suction tube 444 are jointly fixedly connected with a connecting tube 446 connected to the shielding box 41. The air inlet and outlet of the shielding box 41 both pass through the support plate 2 31 at the rear and extend to the rear end of the support plate 2 31. The lower end of the contact box 442 is rotatably connected with a roller 448 that is tightly attached to the outer surface of the connecting block 432.

[0058] The synchronous wheel 441 is connected to the calendering shaft 352 in a transmission manner, and can rotate synchronously and in the same direction as the calendering shaft 352, thereby driving the cleaning shaft 443 to sweep the surface of the calendering shaft 352, sweeping the dust toward the dust suction port 447 provided on the dust suction pipe 444, and sucking the dust into the shielding box 41 through the connecting pipe 446 connected to the shielding box 41, and finally sending the dust out through the shielding box 41;

[0059] Similarly, dust or debris on the dust suction pipe 444 will be scraped off by the dust scraping pipe 445, and then the air in the dust scraping pipe 445 is extracted through the connecting pipe 446 and also sent out through the shielding box 41, so as to keep the surface of the calendering shaft 352 clean.

[0060] It should be noted that the above-mentioned drive motor 2 36, drive motor 3 57, and drive motor 1 27 are conventional motors, which have been widely used in the prior art. In the present invention, they are only used to realize the function of driving the rotation of the passing roller 29, the tensioning roller 2 58, and the calendering shaft 352, and their internal structure, operating principle, wiring, and control method are not described in detail.

[0061] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pre-calendering device for producing pole pieces, comprising a base (1), characterized in that: A loading structure (2) is arranged at the left upper end of the base (1), a calendering structure (3) is arranged at the middle upper end of the base (1), a cleaning structure (4) is arranged at the upper inner surface of the calendering structure (3), and a unloading structure (5) is arranged at the right upper end of the base (1).

2. A pre-calendering device for pole piece production according to claim 1, characterized in that: The feeding structure (2) comprises two support plates (21) symmetrically distributed front and back and fixedly connected to the upper end of the base (1); the right side of the ends of the two support plates (21) close to each other are connected to a feed roller (25) for rotation; the left side of the ends of the two support plates (21) close to each other are connected to a pass roller (29) for rotation; the lower right side of the ends of the two support plates (21) close to each other are connected to a tensioning roller (26) for rotation; the rear parts of the outer surfaces of the feed roller (25), the pass roller (29) and the tensioning roller (26) are connected to each other through a belt drive; the two support plates A buffer chute (22) is provided at a position between a tensioning roller (26) and a passing roller (29); the inner surfaces of the two buffer chute (22) are slidably connected with a buffer slider (24); the upper and lower ends of the two buffer sliders (24) are fixedly connected with a buffer telescopic rod (23) fixedly connected to the inner wall of the adjacent buffer chute (22); the inner surfaces of the two buffer sliders (24) are rotatably connected with a buffer roller (28); the front end of the passing roller (29) is fixedly connected with a driving motor (27) fixedly connected to the adjacent support plate (21).

3. The pre-calendering device for pole piece production according to claim 1, characterized in that: The unloading structure (5) comprises a support plate three (51) symmetrically distributed at the front and rear ends and fixedly connected to the upper end of the base (1); the left side of the two support plates three (51) close to each other is connected to a discharge roller (56) for rotation; the right side of the two support plates three (51) close to each other is connected to a tensioning roller two (58) for rotation; the tensioning roller two (58) and the rear part of the outer surface of the discharge roller (56) are connected together through a belt drive; the front end of the tensioning roller two (58) is fixedly connected to the adjacent support plate The two support plates (51) are fixedly connected to a driving motor (57), the middle parts of the two support plates (51) are each provided with a buffer chute (52) which passes through the front and rear, the inner surfaces of the two buffer chute (52) are both slidably connected to a buffer slider (55), the inner surfaces of the two buffer sliders (55) are jointly rotatably connected to a buffer roller (54), and the upper and lower ends of the two buffer sliders (55) are both fixedly connected to a buffer telescopic rod (53) which is fixedly connected to the inner wall of the adjacent buffer chute (52).

4. The pre-calendering device for pole piece production according to claim 1, characterized in that: The calendering structure (3) comprises two support plates (31) symmetrically distributed frontward and rearward and fixedly connected to the upper end of the base (1); the upper parts of the two support plates (31) close to each other are commonly fixedly connected to a support shaft (32); an adjustment drive assembly (34) is provided at the upper end of the base (1); an adjustment assembly (35) is provided on the inner surface of the adjustment drive assembly (34); the front end of the two support plates (31) located at the front is fixedly connected to a drive motor (36) that is transmission-connected to the adjustment assembly (35); the two support plates (31) close to each other are commonly rotatably connected to support rollers (33) symmetrically distributed leftward and rightward; and the upper parts of the two support plates (31) close to each other are both fixedly connected to the cleaning structure (4).

5. The pre-calendering device for pole piece production according to claim 4, characterized in that: The adjustment component (35) includes a calendering shaft (352) rotatably connected to the two support plates (31) on both sides. The rear part of the outer surface of the central axis of the calendering shaft (352) passes through the support plate (31) located at the rear, extends to its rear end and is transmission-connected to the cleaning structure (4). The parts of the two ends of the two support plates (31) that are close to each other and located at the lower side of the calendering shaft (352) are both provided with limiting grooves (350). The inner surfaces of the two limiting grooves (350) are both slidably connected to the limiting sliders (359). The inner surfaces of the two limiting sliders (359) are both rotatably connected to the working shaft (351). The outer surfaces of the front and rear sides of the central axis of the working shaft (351) are both rotatably connected to the adjustment drive component (34).

6. A pre-calendering device for pole piece production according to claim 5, characterized in that: The adjusting assembly (35) further comprises a gear 1 (353) fixedly connected to the front and rear sides of the central axis of the calendering shaft (352); the right sides of the outer surfaces of the two gear 1s (353) are respectively meshed with gear 2s (354); the lower parts of the outer surfaces of the two gear 2s (354) are respectively meshed with gear 3s (356); the lower parts of the outer surfaces of the two gear 3s (356) are respectively meshed with gear 4s (357) fixedly connected to the outer surfaces of the central axes of the adjacent working shafts (351); the gear 2s (351) on the same side are meshed with gear 4s (357) fixedly connected to the outer surfaces of the central axes of the adjacent working shafts (351); 4) A connecting plate 1 (355) is rotatably connected to the inner surface of gear 3 (356) and is fixedly connected to the inner wall of the adjacent support plate 2 (31); the gear 3 (356) and the gear 4 (357) on the same side are rotatably connected to a connecting plate 2 (358) at one end close to the support plate 2 (31); the connecting plate 1 (355) is fixedly connected to the adjacent support plate 2 (31) via a connecting shaft; the inner surface of the connecting plate 2 (358) is rotatably connected to the outer surface of the connecting shaft of the connecting plate 1 (355).

7. The pre-calendering device for pole piece production according to claim 5, characterized in that: The adjustment drive assembly (34) comprises a hydraulic cylinder (341) fixedly connected to the bottom wall of the inner cavity of the base (1); a piston rod at the output end of the hydraulic cylinder (341) is fixedly connected to a U-shaped rod (343); a lower end of a horizontal portion of the U-shaped rod (343) is symmetrically fixedly connected to a telescopic limit rod (342) fixedly connected to the upper end of the base (1); and vertical portions of the U-shaped rod (343) are rotatably connected to the central axis of an adjacent working shaft (351).

8. The pre-calendering device for pole piece production according to claim 5, characterized in that: The cleaning structure (4) comprises a shielding box (41) fixedly connected to two support plates (31) on both sides; a dust collecting device (42) is fixedly connected to the top wall of the inner surface of the shielding box (41); an abutment component (43) is arranged at the lower end of the dust collecting device (42); and a cleaning component (44) is arranged at the lower end of the abutment component (43) and is in close contact with the outer surface of an adjacent connecting block (432).

9. A pre-calendering device for pole piece production according to claim 8, characterized in that: The abutment assembly (43) comprises two connection blocks (432) symmetrically distributed frontally and rearwardly, the ends of the two connection blocks (432) that are away from each other are symmetrically connected to the connection rods (431) in an upper and lower rotational manner, the two connection rods (431) located at the upper part are rotationally connected to the lower end of the shielding box (41), and the two connection rods (431) located at the lower part are rotationally connected to the upper end of the cleaning assembly (44), and the ends of the two connection blocks (432) that are close to each other are provided with limiting grooves (433), the inner surfaces of the two limiting grooves (433) are slidably connected to the sliding rods (434), and the ends of the two limiting grooves (433) that are close to each other are fixedly connected to the compression springs (435).

10. The pre-calendering device for pole piece production according to claim 9, characterized in that: The cleaning assembly (44) comprises a contact box (442) rotatably connected to the two connecting rods (431) located at the bottom, a cleaning shaft (443) is fixedly connected to the middle of the inner surface of the contact box (442), the rear end of the cleaning shaft (443) passes through the inner cavity of the contact box (442) and extends to the rear end of the contact box (442) and is fixedly connected to a synchronous wheel (441) connected to the connecting block (432) through a belt drive, a dust suction pipe (444) is fixedly connected to the lower right side of the inner surface of the contact box (442), and a dust suction port (447) is provided at the lower part of the side of the dust suction pipe (444) close to the cleaning shaft (443). A scraper tube (445) is fixedly connected to the upper right portion of the inner surface of the contact box (442); a groove matching the dust suction tube (444) is provided on the upper portion of the outer surface of the scraper tube (445) close to the contact box (442); the scraper tube (445) and the dust suction tube (444) are fixedly connected to a connecting tube (446) connected to the shielding box (41); the air inlet and the air outlet of the shielding box (41) both pass through the second support plate (31) at the rear and extend to the rear end of the second support plate (31); the lower end of the contact box (442) is rotatably connected to a roller (448) in a rectangular shape and tightly attached to the outer surface of the connecting block (432).

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