Pole piece rolling device

Abstract

The utility model discloses a pole piece rolling device which comprises a conveying mechanism, a rolling mechanism, a first cleaning mechanism and a second cleaning mechanism, the conveying mechanism comprises a first conveying roller and a second conveying roller which are arranged side by side and used for conveying pole pieces, and the rolling mechanism comprises a first rolling piece arranged on one side of the first conveying roller and a second rolling piece arranged on the other side of the second conveying roller. The second rolling piece is arranged on one side of the second conveying roller, and the first hanging piece and the second rolling piece can roll the surfaces of the two sides of the pole piece respectively; the first cleaning mechanism comprises a first cleaning roller and a first driving part, the first cleaning roller is arranged on the side, away from the first rolling part, of the first conveying roller, and a first viscous layer is arranged on the periphery of the first cleaning roller. The second cleaning mechanism comprises a second cleaning roller and a second driving part, the second cleaning roller is arranged on the side, away from the second rolling part, of the second conveying roller, and a second viscous layer is arranged on the periphery of the second cleaning roller. The viscous layer can adhere metal powder on the two conveying rollers and enable the metal powder to be separated from the two conveying rollers, so that the metal powder is prevented from being accumulated on the two conveying rollers.

Description

Technical Field

[0001] The present application relates to the field of battery production equipment, and in particular to a pole piece rolling device. Background Art

[0002] As the new energy vehicle market continues to expand, the demand for new energy vehicle power batteries is also increasing, and the demand for high-capacity power battery die-cutting equipment is becoming increasingly apparent. In high-speed die-cutting equipment, as efficiency increases, the transmission speed of the electrode sheet will also increase, the rotation speed of the rollers in the entire machine will also increase accordingly, and the speed of the reinforcing rubber rollers has also doubled. As part of the electrode sheet, when the reinforcing rubber rollers crimp the electrode tabs, metal powder will accumulate and agglomerate in the area corresponding to the electrode tab on the rubber roller. If the electrode tab slips during the crimping process, the agglomerate can scratch the electrode tab (damaging the reinforcing ribs formed by the crimping wheel) or cause irregular wrinkles, affecting the product yield and equipment stability. Utility Model Content

[0003] The present application proposes a pole piece rolling device that can effectively clean the metal powder on the roller to avoid the accumulation of metal powder and damage to the pole piece.

[0004] This application proposes a pole piece rolling device, comprising:

[0005] The conveying mechanism includes a first conveying roller and a second conveying roller arranged side by side, wherein the first conveying roller and the second conveying roller are used to convey the electrode piece:

[0006] The rolling mechanism includes a first rolling member provided on one side of the first conveying roller, the first rolling member being used to roll the surface of one side of the electrode sheet; and a second rolling member provided on one side of the second conveying roller, the second rolling member being used to roll the surface of the other side of the electrode sheet;

[0007] a first cleaning mechanism comprising a first cleaning roller and a first driving member for driving the first cleaning roller to move closer to or away from the first conveying roller, wherein the first cleaning roller is disposed on a side of the first conveying roller away from the first rolling member and has a first adhesive layer disposed on its outer periphery;

[0008] The second cleaning mechanism includes a second cleaning roller and a second driving member for driving the second cleaning roller to approach or move away from the second conveying roller. The second cleaning roller is arranged on a side of the second conveying roller away from the second rolling member and has a second adhesive layer on its periphery.

[0009] In some embodiments, the rolling mechanism includes two first rolling members arranged side by side along the axis of the first conveying roller;

[0010] The first cleaning mechanism includes two first cleaning rollers arranged side by side along the axis of the first conveying roller; the first cleaning rollers and the first roller pressing members are arranged in a one-to-one correspondence.

[0011] In some embodiments, the first cleaning mechanism further includes a first mounting seat, and the two first cleaning rollers are disposed on the first mounting seat and are capable of moving along the first mounting seat along the axis direction of the first conveying roller.

[0012] In some embodiments, the first cleaning mechanism also includes a first mounting plate arranged at the end of the first mounting seat, the first mounting plate is provided with a first mounting hole, and a first arc-shaped hole is provided on one side of the first mounting hole, the center line of the first mounting hole is arranged parallel to the first conveying roller, and the first arc-shaped hole is used to adjust the installation angle of the first cleaning roller.

[0013] In some embodiments, the first cleaning mechanism further includes a first quick-release assembly for connecting the first driving member and the first cleaning roller.

[0014] In some embodiments, the rolling mechanism includes two second rolling members arranged side by side along the axis of the second conveying roller;

[0015] The second cleaning mechanism includes two second cleaning rollers arranged side by side along the axis of the second conveying roller; the second cleaning rollers are arranged in a one-to-one correspondence with the second roller pressing member.

[0016] In some embodiments, the second cleaning mechanism further includes a second mounting seat, and the two second cleaning rollers are disposed on the second mounting seat and are capable of moving along the second mounting seat along the axis direction of the second conveying roller.

[0017] In some embodiments, the second cleaning mechanism also includes a second mounting plate arranged at the end of the second mounting seat, the second mounting plate is provided with a second mounting hole, and a second arc-shaped hole is provided on one side of the second mounting hole, the center line of the second mounting hole is arranged parallel to the second conveying roller, and the second arc-shaped hole is used to adjust the installation angle of the second cleaning roller.

[0018] In some embodiments, the second cleaning mechanism further includes a second quick-release assembly for connecting the second driving member and the second cleaning roller.

[0019] In some embodiments, the rolling mechanism further includes a third driving member driving the first rolling member to approach or move away from the first conveying roller, and a fourth driving member driving the second rolling member to approach or move away from the second conveying roller.

[0020] The electrode sheet rolling device and processing equipment in the present application include a conveying mechanism, a rolling mechanism, a first cleaning mechanism, and a second cleaning mechanism, wherein the conveying mechanism includes a first conveying roller and a second conveying roller arranged side by side for conveying the electrode sheet; the rolling mechanism includes a first rolling member arranged on one side of the first conveying roller, and a second rolling member arranged on one side of the second conveying roller, and the first hanging member and the second rolling member can respectively roll the two side surfaces of the electrode sheet; the first cleaning mechanism includes a first cleaning roller and a first driving member, the first cleaning roller is arranged on the side of the first conveying roller away from the first rolling member, and a first adhesive layer is provided on the outer periphery; the second cleaning mechanism includes a second cleaning roller and a second driving member, the second cleaning roller is arranged on the side of the second conveying roller away from the second rolling member, and a second adhesive layer is provided on the outer periphery. The above-mentioned adhesive layer can adhere to the metal powder on the two conveying rollers and make the metal powder separate from the two conveying rollers, thereby preventing the metal powder from accumulating on the two conveying rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural diagram of a pole piece rolling device in one embodiment of the present application;

[0022] Figure 2 This is a schematic structural diagram of a pole piece rolling device in another embodiment of the present application;

[0023] Figure 3 This is a schematic structural diagram of a pole piece rolling device in another embodiment of the present application;

[0024] Figure 4 for Figure 1 A schematic structural diagram of the second cleaning mechanism in the embodiment;

[0025] Figure 5 for Figure 1 Schematic diagram of the structure of the first quick-release assembly in the embodiment.

[0026] Description of labels:

[0027] 11. First conveyor roller; 12. Second conveyor roller; 20. Rolling mechanism; 21. First roller pressing member; 22. Second roller pressing member; 23. Third driving member; 24. Fourth driving member; 25. First mounting bracket; 26. Second mounting bracket; 31. First cleaning mechanism; 311. First cleaning roller; 312. First driving member; 313. First mounting seat; 314. First mounting plate; 315. First quick-release assembly; 316. First bracket; 317. Bar protrusion; 318. Butterfly screw; 32. Second cleaning mechanism; 321. Second cleaning roller; 322. Second driving member; 323. Second mounting seat; 324. Second mounting plate; 325. Second quick-release assembly.

[0028] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the schemes in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments in this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] It should be noted that all directional indications such as up, down, left, right, front, back, etc. in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0031] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element.

[0032] In addition, the descriptions of "first", "second", etc. in the embodiments of the present application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0033] The present application embodiment proposes a pole piece rolling device, referring to Figures 1 to 3The electrode sheet rolling device includes: a conveying mechanism 10, including a first conveying roller 11 and a second conveying roller 12 arranged side by side, the first conveying roller 11 and the second conveying roller 12 are used to convey the electrode sheet; a rolling mechanism 20, including a first rolling member 21 provided on one side of the first conveying roller 11, the first rolling member 21 is used to roll one side surface of the electrode sheet; and a second rolling member 22 provided on one side of the second conveying roller 12, the second rolling member 22 is used to roll the other side surface of the electrode sheet; a first cleaning mechanism 31, including a first cleaning roller 311, and a first driving member 312 for driving the first cleaning roller 311 to move closer to or away from the first conveying roller 11, the first cleaning roller 311 being arranged on the side of the first conveying roller 11 away from the first roller pressure member 21, and having a first adhesive layer on the periphery; a second cleaning mechanism 32 comprising a second cleaning roller 321, and a second driving member 322 for driving the second cleaning roller 321 to move closer to or away from the second conveying roller 12, the second cleaning roller 321 being arranged on the side of the second conveying roller 12 away from the second roller pressure member 22, and having a second adhesive layer on the periphery.

[0034] In the embodiment of the present application, the first conveyor roller 11 and the second conveyor roller 12 are used for winding the electrode sheet thereon and for conveying the electrode sheet. When the electrode sheet is conveyed by the first conveyor roller 11 and the second conveyor roller 12, the surfaces on both sides thereof are respectively pressed by the first roller pressing member 21 and the second roller pressing member 22. The first cleaning mechanism 31 can clean the first conveyor roller 11; the second cleaning mechanism 32 can clean the second conveyor roller 12. The above-mentioned adhesive layer can be a silicone layer, which can be used to adhere to the metal powder on the two conveyor rollers and separate the metal powder from the two conveyor rollers, preventing the metal powder from accumulating on the two conveyor rollers, thereby damaging the surface of the electrode sheet and not affecting the compression of the electrode sheet. Of course, the above-mentioned first driving member 312 and the second driving member 322 can drive the cleaning rollers to move. When it is necessary to replace the cleaning roller or the adhesive layer thereon, the cleaning roller can be driven away from the conveyor roller to facilitate maintenance without stopping the machine and without affecting production efficiency.

[0035] In some embodiments, reference Figure 1 and Figure 2 The rolling mechanism includes two first rolling members 21 arranged side by side along the axis of the first conveying roller 11; Figure 3The first cleaning mechanism 31 includes two first cleaning rollers 311 arranged side by side along the axis of the first conveying roller 11; the first cleaning rollers 311 are arranged in a one-to-one correspondence with the first roller pressing member 21. In this embodiment, two first roller pressing members 21 are provided to roll the edge areas on both sides of the electrode. The first roller pressing member 21 can optionally be a roller, and the outer periphery of the roller is provided with a strip-shaped protrusion, which can produce regular wrinkles when rolling the surface of the electrode. The first conveying roller 11 can be a plastic roller, which is made of a softer material and can buffer the extrusion of the strip-shaped protrusion during the rolling process to avoid damage to the electrode. The two first cleaning rollers 311 can roll synchronously with the first conveying roller 11, and contact the area opposite to the rolling area of ​​the first conveying roller 11 and the electrode, so as to pick up metal powder on the surface and prevent metal powder from accumulating in this area.

[0036] Furthermore, the first cleaning mechanism 31 also includes a first mounting base 313. Two first cleaning rollers 311 are mounted on the first mounting base 313 and are capable of moving along the first mounting base 313 along the axis of the first conveyor roller 11. The first mounting base 313 may be a profile with a connecting groove extending along its length. A first driving member 312 is secured to the connecting groove via a bolt and nut. The first driving member 312 is secured to the connecting groove via a bolt and nut. By adjusting the position of the first driving member 312, the position of the first cleaning rollers 311 along the length of the connecting groove can be adjusted to accommodate different rolling pressure areas.

[0037] The first cleaning mechanism 31 also includes a first mounting plate 314 disposed at the end of the first mounting seat 313. The first mounting plate 314 is provided with a first mounting hole and a first arcuate hole disposed to one side of the first mounting hole. The centerline of the first mounting hole is parallel to the first conveyor roller 11. The first arcuate hole is used to adjust the mounting angle of the first cleaning roller 311. In this embodiment, the first mounting seat 313 and the first mounting plate 314 can be mounted on an external frame, with the first mounting plate 314 being connected to the frame. Specifically, the first mounting plate 314 can be mounted to the frame using screws inserted through the first mounting hole. With only one point of fixation, the first mounting seat 313 and the first mounting plate 314 can rotate about the first mounting hole. Screws are also required in the first arcuate hole to secure the first mounting plate 314 to the external frame. The first arcuate hole allows the position and swing angle of the first mounting seat 313 to be adjusted, allowing the first mounting seat 313 and the first cleaning roller 311 to have a certain adjustable angle to avoid interference with other components.

[0038] In the examples of this application, refer to Figure 5The first cleaning mechanism 31 also includes a first quick-release assembly 315 for connecting the first driving member 312 to the first cleaning roller 311. The first quick-release assembly 315 includes a first bracket 316 for mounting the first cleaning roller 311. The first cleaning roller 311 is rotatably connected to the first bracket 316. The first bracket 316 has a first mounting slot at the end facing away from the first cleaning roller 311. The driving end of the first driving member 312 is provided with a bar-shaped protrusion 317 that fits into the first mounting slot. The first bracket 316 and bar-shaped protrusion 317 are secured together by a butterfly screw 318. When the first cleaning roller 311 needs to be replaced, the first bracket 316 and first cleaning roller 311 can be removed by simply loosening the butterfly screw 318 and replacing them with a new one. The first mounting slot can be arranged along the length of the first mounting base 313. When the first bracket 316 is removed, it is removed along the axial direction of the first transmission roller 11, preventing contact with the first transmission roller 11 and disrupting the normal rolling process.

[0039] Further, refer to Figure 2 The rolling mechanism also includes a third driving member 23 that drives the first rolling member 21 to move closer to or away from the first conveying roller 11. The electrode rolling device includes a first mounting frame 25. The first mounting frame 25 can be a frame structure. The first conveying roller 11 and the rolling mechanism are arranged in the frame, and the electrode passes through the frame. Specifically, the first conveying roller 11 can be arranged near the lower part of the frame, and the third driving member 23 can be a cylinder arranged near the upper part of the frame. The push rod of the cylinder is vertically downward and is rotatably connected to the first rolling member 21. The push rod of the cylinder can be pushed out to drive the first rolling member 21 to move closer to the electrode on the first conveying roller 11, and roll it along the conveying direction as the electrode is transported. When the electrode does not need to be rolled, the push rod retracts to drive the first rolling member 21 away from the first conveying roller 11, thereby facilitating the installation of the electrode. Of course, the push rod can also be extended and retracted periodically to regularly roll the surface of the electrode.

[0040] In the examples of this application, refer to Figures 1 to 3The rolling mechanism includes two second rolling members 22 arranged side by side along the axis of the second conveyor roller 12; the second cleaning mechanism 32 includes two second cleaning rollers 321 arranged side by side along the axis of the second conveyor roller 12; the second cleaning rollers 321 are arranged in a one-to-one correspondence with the second rolling members 22. In this embodiment, two second rolling members 22 are provided to roll the edge areas on both sides of the electrode. The second rolling member 22 can optionally be a roller, and the outer periphery of the roller is provided with a strip-shaped protrusion, which can produce regular wrinkles on the surface of the electrode when rolling. The second conveyor roller 12 can be a plastic roller, which is made of a softer material and can buffer the extrusion of the strip-shaped protrusion during the rolling process to avoid damage to the electrode. The two second cleaning rollers 321 can roll synchronously with the second conveyor roller 12 and contact the area of ​​the second conveyor roller 12 opposite to the electrode rolling area, adsorbing metal powder on the surface to prevent metal powder from accumulating in this area.

[0041] Further, refer to Figure 4 The second cleaning mechanism 32 also includes a second mounting base 323. Two second cleaning rollers 321 are mounted on the second mounting base 323 and are capable of moving along the second mounting base 323 along the axis of the second conveyor roller 12. The second mounting base 323 may be a profile with a connecting groove extending along its length. A second driving member 322 is secured to the connecting groove via a bolt and nut. Adjusting the position of the second driving member 322 adjusts the position of the second cleaning rollers 321 along the length of the connecting groove to accommodate different rolling pressure zones.

[0042] The second cleaning mechanism 32 also includes a second mounting plate 324 disposed at the end of the second mounting seat 323. The second mounting plate 324 is provided with a second mounting hole and a second arcuate hole disposed to one side of the second mounting hole. The centerline of the second mounting hole is parallel to the second conveyor roller 12. The second arcuate hole is used to adjust the mounting angle of the second cleaning roller 321. In this embodiment, the second mounting seat 323 and the second mounting plate 324 can be disposed on an external frame, and the second mounting plate 324 is connected to the frame. Specifically, the second mounting plate 324 can be mounted to the frame using screws passing through the second mounting hole. With only one point of fixation, the second mounting seat 323 and the second mounting plate 324 can rotate about the second mounting hole. Screws are also required in the second arcuate hole to secure the second mounting plate 324 to the external frame. The second arcuate hole allows the second mounting seat 323 to be adjusted in position and at a desired swing angle, allowing the second mounting seat 323 and the second cleaning roller 321 to maintain a certain adjustable angle and avoid interference with other components.

[0043] In the embodiment of the present application, the second cleaning mechanism 32 also includes a second quick-release assembly 325 for connecting the second driving member 322 and the second cleaning roller 321. The second quick-release assembly 325 includes a second bracket for mounting the second cleaning roller 321, and the second cleaning roller 321 is rotatably connected to the second bracket. The second bracket is provided with a second mounting groove at one end away from the second cleaning roller 321, and the driving end of the second driving member 322 is provided with a strip protrusion adapted to the second mounting groove. The second bracket and the strip protrusion can be locked together by a butterfly screw. When the second cleaning roller 321 needs to be replaced, it is only necessary to loosen the butterfly screw to remove the second bracket and the second cleaning roller 321 and replace them with a new second bracket and second cleaning roller 321. The above-mentioned second mounting groove can be arranged along the length direction of the second mounting seat 323. When the second bracket is disassembled, it is also removed along the axial direction of the second transmission roller, and will not contact the second transmission shaft and affect the normal rolling process.

[0044] Further, refer to Figure 2 The rolling mechanism also includes a fourth drive member 24 that drives the second rolling member 22 toward or away from the second conveyor roller 12. The electrode rolling device includes a second mounting frame 26, which can be a frame structure. The second conveyor roller 12 and the rolling mechanism are arranged within the frame, and the electrode passes through the frame. Specifically, the second conveyor roller 12 can be arranged near the upper part of the frame, and the fourth drive member 24 can be a cylinder arranged near the lower part of the frame. The cylinder's push rod is vertically upward and rotatably connected to the second rolling member 22. The cylinder's push rod can push out to drive the second rolling member 22 toward the electrode on the second conveyor roller 12 and roll it along the conveying direction as the electrode is transported. When rolling the electrode is not needed, the push rod retracts and drives the second rolling member 22 away from the second conveyor roller 12, facilitating the installation of the electrode. Of course, the push rod can also be periodically extended and retracted to regularly roll the surface of the electrode.

[0045] In an embodiment of the present application, a pole piece rolling device can be installed in a die-cutting machine. The first and second conveyor rollers 11, 12 in the pole piece rolling device can be arranged in a staggered arrangement, one high and one low. The pole piece extends upward from the lower left of the first conveyor roller 11, wraps around the upper side of the first conveyor roller 11, then extends to the lower right second conveyor roller 12, wraps around the lower side of the second conveyor roller 12, and then extends to the upper right. The pole piece is transported in a Z-shaped pattern between the first and second conveyor rollers 11, 12. A rolling mechanism is located above the first conveyor roller 11, and below the second conveyor roller 12. The first cleaning roller 311 and the first driving member 312 can be located to the lower left of the first conveyor roller 11. The second cleaning roller 321 and the second driving member 322 are located to the upper left of the second conveyor roller 12. This arrangement improves space utilization within the pole piece rolling device, making the pole piece rolling device more compact and smaller in size. It also satisfies the requirements of rolling both sides of the pole piece and cleaning both sets of conveyor rollers.

[0046] In the embodiment of the present application, the specific operating principle of the electrode sheet rolling device is as follows: the first conveyor roller 11 and the second conveyor roller 12 are used to carry the electrode sheet and are used to convey the electrode sheet. When the electrode sheet is conveyed by the first conveyor roller 11 and the second conveyor roller 12, the surfaces on both sides are rolled by the first rolling member 21 and the second rolling member 22, respectively. The first cleaning mechanism 31 can clean the first conveyor roller 11, and the second cleaning mechanism 32 can clean the second conveyor roller 12. The above-mentioned adhesive layer can be used to adhere to the metal powder on the two conveyor rollers and separate the metal powder from the two conveyor rollers, preventing the metal powder from accumulating on the two conveyor rollers and damaging the surface of the electrode sheet without affecting the compression of the electrode sheet. The above-mentioned first driving member 312 and the second driving member 322 can drive the cleaning rollers to move. When the cleaning rollers or the adhesive layer on them need to be replaced, the cleaning rollers can be driven away from the conveyor rollers to facilitate maintenance without stopping the machine and affecting production efficiency.

[0047] The main advantages of the integrated mechanism lie in the cleaning roller changeover method, spatial layout, and the adjustment and control of the cleaning roller air pressure and contact surface. The compact layout and limitations of the roller pressing mechanism itself make it difficult to add new mechanisms. Furthermore, the cleaning roller is a vulnerable part. To facilitate the changeover of the cleaning roller during after-sales maintenance, it adopts a quick-release installation method that can be installed online. The assembled cleaning roller and bracket are directly installed along the connecting groove onto the bar-shaped protrusion at the moving end of the cylinder and tightened with a butterfly knob. This saves changeover time and ensures the production efficiency of the equipment.

[0048] The above are only partial or preferred embodiments of the present application. Neither the text nor the drawings can limit the scope of protection of the present application. All equivalent structural transformations made using the contents of the present application specification and drawings under the overall concept of the present application, or direct / indirect application in other related technical fields are included in the scope of protection of the present application.

Claims

1. A pole piece rolling device, characterized in that: include: The conveying mechanism includes a first conveying roller and a second conveying roller arranged side by side, wherein the first conveying roller and the second conveying roller are used to convey the electrode piece: The rolling mechanism includes a first rolling member provided on one side of the first conveying roller, the first rolling member being used to roll the surface of one side of the electrode sheet; and a second rolling member provided on one side of the second conveying roller, the second rolling member being used to roll the surface of the other side of the electrode sheet; a first cleaning mechanism comprising a first cleaning roller and a first driving member for driving the first cleaning roller to move closer to or away from the first conveying roller, wherein the first cleaning roller is disposed on a side of the first conveying roller away from the first rolling member and has a first adhesive layer disposed on its outer periphery; The second cleaning mechanism includes a second cleaning roller and a second driving member for driving the second cleaning roller to approach or move away from the second conveying roller. The second cleaning roller is arranged on a side of the second conveying roller away from the second rolling member and has a second adhesive layer on its periphery.

2. The pole piece rolling device according to claim 1, characterized in that: The rolling mechanism includes two first rolling members arranged side by side along the axis of the first conveying roller; The first cleaning mechanism includes two first cleaning rollers arranged side by side along the axis of the first conveying roller; the first cleaning rollers and the first roller pressing members are arranged in a one-to-one correspondence.

3. The pole piece rolling device according to claim 2, characterized in that: The first cleaning mechanism further includes a first mounting seat, and the two first cleaning rollers are disposed on the first mounting seat and are capable of moving along the first mounting seat along the axis direction of the first conveying roller.

4. The pole piece rolling device according to claim 3, characterized in that: The first cleaning mechanism also includes a first mounting plate arranged at the end of the first mounting seat, the first mounting plate is provided with a first mounting hole, and a first arc-shaped hole is provided on one side of the first mounting hole, the center line of the first mounting hole is arranged parallel to the first conveying roller, and the first arc-shaped hole is used to adjust the installation angle of the first cleaning roller.

5. The pole piece rolling device according to claim 3, characterized in that: The first cleaning mechanism further includes a first quick-release assembly for connecting the first driving member and the first cleaning roller.

6. The pole piece rolling device according to claim 1, characterized in that: The rolling mechanism includes two second rolling members arranged side by side along the axis of the second conveying roller; The second cleaning mechanism includes two second cleaning rollers arranged side by side along the axis of the second conveying roller; the second cleaning rollers are arranged in a one-to-one correspondence with the second roller pressing member.

7. The pole piece rolling device according to claim 6, characterized in that: The second cleaning mechanism further includes a second mounting seat. The two second cleaning rollers are disposed on the second mounting seat and are capable of moving along the second mounting seat along the axis direction of the second conveying roller.

8. The pole piece rolling device according to claim 7, characterized in that: The second cleaning mechanism also includes a second mounting plate arranged at the end of the second mounting seat, the second mounting plate is provided with a second mounting hole, and a second arc-shaped hole is provided on one side of the second mounting hole, the center line of the second mounting hole is arranged parallel to the second conveying roller, and the second arc-shaped hole is used to adjust the installation angle of the second cleaning roller.

9. The pole piece rolling device according to claim 7, characterized in that: The second cleaning mechanism further includes a second quick-release assembly for connecting the second driving member and the second cleaning roller.

10. The pole piece rolling device according to claim 1, characterized in that: The rolling mechanism further includes a third driving member for driving the first rolling member to approach or move away from the first conveying roller, and a fourth driving member for driving the second rolling member to approach or move away from the second conveying roller.

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