A pole piece winding device

Abstract

The embodiment of the utility model provides a pole piece winding device, which relates to the technical field of lithium battery equipment. The pole piece winding device includes a winding mechanism and a partition plate. The winding mechanism includes a mounting frame, a first driving member, a reel, a cover body and a dust collecting box. The first driving member is mounted on the mounting frame, one end of the reel is connected to the first driving member, and the first driving member is used to drive the reel to rotate around its own axis. The cover body is connected to the mounting frame and is covered on the reel. The dust collecting box is arranged on the side of the mounting frame away from the cover body, and the opening of the dust collecting box faces the reel. The partition plate has a first side and a second side, and the partition plate is also provided with a through hole passing through the first side and the second side. The first side of the partition plate has a pole piece, and the second side of the partition plate is provided with a second driving member. The second driving member is connected to the mounting frame to drive the winding mechanism to pass through the through hole from the second side. During the cutting process of the cutter, due to the setting of the cover body, it can effectively prevent the debris and dust generated by cutting the bad pole piece from entering the battery cell.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery equipment, and in particular to a pole piece winding device. Background Art

[0002] In the production of lithium batteries, the separator and the pole piece need to be wound together to prepare a battery cell. However, there are usually waste segments (NG pole pieces) in the pole piece. The bad pole piece needs to be removed, which easily generates pole ear debris and dust.

[0003] The inventors have found through research that in some existing electrode winding devices, when defective electrodes are removed, the debris or dust generated can easily fall into the battery cell. Utility Model Content

[0004] The utility model aims to provide a pole piece winding device, which can effectively reduce the debris or dust falling into the battery core when removing the defective pole piece.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides a pole piece winding device, comprising:

[0007] The winding mechanism comprises a mounting frame, a first driving member, a reel, a cover body and a dust collecting box, wherein the first driving member is mounted on the mounting frame, one end of the reel is connected to the first driving member, the first driving member is used to drive the reel to rotate around its own axis, the cover body is connected to the mounting frame and is covered on the reel, the dust collecting box is arranged on a side of the mounting frame away from the cover body, and the opening of the dust collecting box faces the reel;

[0008] The partition plate has a first side and a second side, and the partition plate is also provided with a through hole passing through the first side and the second side. The first side of the partition plate has a pole piece, and the second side of the partition plate is provided with a second driving member, which is connected to the mounting frame and is used to drive the winding mechanism to pass through the through hole from the second side.

[0009] In an optional embodiment, the second driving member includes a frame, a second driving motor, a second screw and a second screw nut. The second driving motor is disposed on the frame, the frame is connected to the second side of the partition plate, the second screw is connected to the second driving motor, the second screw nut is sleeved on the second screw and connected to the mounting frame, and the extension direction of the screw is parallel to the axis of the reel.

[0010] In an optional embodiment, a notch is provided at one end of the reel away from the second driving member, and the notch extends along the axial direction of the reel.

[0011] In an optional embodiment, the pole piece winding device also includes a third driving member and a latch, wherein the driving end of the third driving member is connected to the latch and is used to drive the latch to move in a preset direction to be plugged into the slot, wherein the preset direction is perpendicular to the axial direction of the winding shaft.

[0012] In an optional embodiment, the pole piece winding device further includes a defect detection sensor and a cutter, wherein the defect detection sensor is used to detect whether the pole piece is waste, and the cutter is used to cut off the pole piece.

[0013] In an optional embodiment, the pole piece winding device further comprises a clamping member, which is located on the first side and is used to clamp or release the pole piece.

[0014] In an optional embodiment, the clamping member includes a first pressing roller and a second pressing roller, the pole piece is located between the first pressing roller and the second pressing roller, and the first pressing roller and the second pressing roller are used to clamp or release the pole piece.

[0015] In an optional embodiment, the winding mechanism further includes a dust suction pipe, which is connected to the dust receiving box, and is used to suck out debris in the dust receiving box.

[0016] In an optional embodiment, a receiving plate is provided in the dust collecting box, the receiving plate divides the dust collecting box into an upper box body and a lower box body, the upper box body is closer to the mounting frame than the lower box body, the receiving plate is provided with a plurality of through holes arranged at intervals, and the upper box body is connected to the lower box body through the through holes;

[0017] The winding mechanism also includes a fourth driving member and a brush. The fourth driving member is arranged on the mounting frame. The fourth driving member is connected to the dust collecting box or the brush. The brush is located between the upper box body and the mounting frame, and is used to drive the dust collecting box or the brush to move in a preset direction. The preset direction is parallel to the extension direction of the axis of the reel.

[0018] In an optional embodiment, the fourth driving member includes a cylinder and a connecting block connected to each other, the cylinder is arranged on the mounting frame, and the connecting block is connected to the dust collecting box.

[0019] The beneficial effect of the embodiment of the utility model is as follows: the embodiment of the utility model provides a pole piece winding device including a winding mechanism and a partition plate. The winding mechanism includes a mounting frame, a first driving member, a reel, a cover body and a dust collecting box, the first driving member is mounted on the mounting frame, one end of the reel is connected to the first driving member, the first driving member is used to drive the reel to rotate around its own axis, the cover body is connected to the mounting frame and is covered on the reel, the dust collecting box is arranged on the side of the mounting frame away from the cover body, the opening of the dust collecting box faces the reel, the partition plate has a first side and a second side, the partition plate is also provided with a through hole passing through the first side and the second side, the first side of the partition plate has a pole piece, the second side of the partition plate is provided with a second driving member, the second driving member is connected to the mounting frame to drive the winding mechanism to pass through the through hole from the second side, and in the process of cutting with a cutter, due to the setting of the cover body, it is possible to effectively prevent the debris and dust generated by cutting a bad pole piece from entering the battery cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A cross-sectional schematic diagram of a pole piece winding device provided by an embodiment of the utility model at a first viewing angle, with the winding mechanism not extending out of the first side;

[0022] Figure 2 A schematic diagram of the structure of the pole piece winding device provided by an embodiment of the utility model, in which the winding mechanism does not extend out of the first side after the partition plate is removed from the second viewing angle;

[0023] Figure 3 A cross-sectional schematic diagram of a pole piece winding device provided by an embodiment of the utility model at a first viewing angle, with the winding mechanism extending out of a first side;

[0024] Figure 4 A schematic diagram of the structure of the pole piece winding device provided by the embodiment of the utility model, in which the winding mechanism extends out of the first side and is winding after the partition plate is removed from the second viewing angle;

[0025] Figure 5 A schematic diagram of the structure of the pole piece winding device provided by the embodiment of the utility model when rejecting defective pole pieces after winding;

[0026] Figure 6 A schematic diagram of the connection between the fourth driving member and the dust collecting box provided in an embodiment of the utility model at a first viewing angle;

[0027] Figure 7This is a schematic structural diagram of the dust collecting box provided by an embodiment of the utility model at a third viewing angle.

[0028] Icons: 1-pole winding device; 100-separator; 110-first side; 120-second side; 130-through hole; 200-winding mechanism; 210-mounting frame; 211-brush; 220-first driving member; 230-reel; 321-notch; 240-cover; 250-dust collecting box; 251-receiving plate; 2511-through hole; 252-dust suction pipe; 300-second driving member; 310-frame; 320-second drive motor; 330-screw; 340-screw nut; 400-third drive member; 500-latch; 600-bad detection sensor; 700-cutter; 800-clamp; 810-first pressure roller; 820-second pressure roller; 900-fourth drive member; 1000-ear guide plate; 1100-pressing member; 2-bad pole piece collection box; 3-pole piece. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The specific structure of a pole piece winding device provided by an embodiment of the utility model and the corresponding technical effects it brings are described in detail below in conjunction with the patent drawings.

[0036] Please refer to Figure 1 A pole piece winding device 1 provided in an embodiment of the utility model includes a winding mechanism 200 and a partition plate 100 .

[0037] The winding mechanism 200 includes a mounting frame 210, a first driving member 220, a reel 230, a cover body 240 and a dust collecting box 250. The first driving member 220 is installed on the mounting frame 210, one end of the reel 230 is connected to the first driving member 220, and the first driving member 220 is used to drive the reel 230 to rotate around its own axis. The cover body 240 is connected to the mounting frame 210 and is covered on the reel 230. That is, the cover body 240 is installed on the mounting frame 210, and at least part of the reel 230 is located in the cover body 240.

[0038] It should be noted that, in order to facilitate the winding of the pole piece 3 , one end of the reel 230 away from the first driving member 220 extends out of the cover 240 , and the cover 240 and the reel 230 are located on the same side of the mounting frame 210 .

[0039] It should be noted that, in this embodiment, the first driving member 220 is a first driving motor, that is, the motor shaft of the first driving motor is connected to the reel 230. Of course, the motor shaft of the first driving motor is connected to the reel 230 through a coupling. After the first driving motor is started, it can drive the reel 230 to rotate around its own axis.

[0040] The dust collecting box 250 is disposed on a side of the mounting frame 210 away from the cover body 240 , and an opening of the dust collecting box 250 faces the reel 230 .

[0041] The partition plate 100 has a first side 110 and a second side 120. The partition plate 100 is further provided with a through hole 130 penetrating the first side 110 and the second side 120. The first side 110 of the partition plate 100 has a pole piece 3. The second side 120 of the partition plate 100 is provided with a second driving member 300. The second driving member 300 is connected to the mounting frame 210 to drive the winding mechanism 200 to pass through the through hole 130 from the second side 120. That is, when the pole piece 3 does not need to be wound, the winding mechanism 200 is located on the second side 120 of the partition plate 100.

[0042] In detail, the pole piece winding device 1 further includes a defect detection sensor 600 and a cutter 700. The defect detection sensor 600 is used to detect whether the pole piece 3 is waste, and the cutter 700 is used to cut the pole piece 3. The defect detection sensor 600 can be a CCD camera. It should be noted that the defect detection sensor 600 and the cutter 700 are conventional settings of the pole piece 3 winding device. Therefore, the specific structures of the defect detection sensor 600 and the cutter 700 are not described in detail here.

[0043] When the defective detection sensor 600 detects that waste material appears in the pole piece 3, since the second driving member 300 can drive the winding mechanism 200 to pass through the through hole 130 from the second side 120 to enter the side where the pole piece 3 is provided, at this time, the reel 230 also passes through the through hole 130. Therefore, the pole piece 3 can be pre-wound on the reel 230, and driven by the first driving member 220, the reel 230 is driven to rotate to realize the winding of the pole piece 3, and then the cutter 700 is used to cut the end of the waste segment, and the reel can wind the entire waste segment together.

[0044] During the cutting process of the cutter 700 , the cover 240 can effectively prevent the debris and dust generated by cutting the defective electrode piece 3 from entering the battery cell.

[0045] Furthermore, since a dust collecting box 250 is further provided on a side of the mounting frame 210 away from the cover body 240 , the dust collecting box 250 can receive the debris and dust generated by cutting the defective electrode piece 3 .

[0046] Optionally, the second driving member 300 includes a frame 310, a second driving motor 320, a second screw rod 330 and a second screw rod nut 340. The second driving motor 320 is arranged on the frame 310, the frame 310 is connected to the second side 120 of the partition plate 100, the second screw rod 330 is connected to the second driving motor 320, the second screw rod nut 340 is sleeved on the second screw rod 330 and connected to the mounting frame 210, and the extension direction of the screw rod 330 is parallel to the axis of the reel 230.

[0047] It can be understood that when the second driving motor 320 is rotating, it can drive the second screw rod 330 to rotate, thereby driving the second screw rod nut 340 to move along the axial direction of the second screw rod 330 .

[0048] That is, the axial direction of the through hole 130 is parallel to the axial direction of the winding shaft 230 .

[0049] Of course, in some other embodiments, the second driving member 300 may also include a cylinder and a connecting part, the driving end of the cylinder is connected to the connecting part, and the connecting part is connected to the mounting frame 210. The cylinder can drive the mounting frame 210 to move along the axial direction of the reel 230 through the connecting part, thereby driving the winding mechanism 200 to pass through the through hole 130 from the second side 120, and allowing the reel 230 to pass through the through hole 130 and enter the second side 120 of the partition plate 100, so that the reel 230 is close to the pole piece 3, which is convenient for the pole piece 3 to be wound on the reel 230.

[0050] Optionally, in some other embodiments, the second driving member 300 may also be driven in other ways, for example, by a gear rack transmission method or a synchronous belt transmission method.

[0051] Optional, please refer to Figure 2 A notch 321 is provided at one end of the reel 230 away from the second driving member 300 , and the notch 321 extends along the axial direction of the reel 230 .

[0052] It is understandable that when the reel 230 passes through the through hole 130 and enters the second side 120 of the partition plate 100 close to the pole piece 3, the pole piece 3 can enter the slot 321 and be pre-rolled through the slot 321, making it easier for the reel 230 to wind up the pole piece 3.

[0053] Furthermore, the pole piece winding device 1 also includes a third driving member 400 and a latch 500. The driving end of the third driving member 400 is connected to the latch 500 for driving the latch 500 to move in a preset direction to be plugged into the slot 321. The preset direction is perpendicular to the axial direction of the reel 230.

[0054] Understandable, please refer to Figure 1-Figure 5When the reel 230 is winding the defective segment of the electrode 3, the end of the defective segment of the electrode 3 can be cut by the cutter 700 until the end of the defective segment of the electrode 3 enters the cutting range of the cutter 700. When the reel 230 continues to wind, the defective segment of the electrode 3 is completely wound on the reel 230. At this time, the reel 230 can be retracted from the through hole 130 to the second side 120 of the partition plate 100 under the drive of the second driving member 300. At this time, the user can drive the pin 500 to insert into the slot 321 through the third driving member 400, and make the pin 500 located at one end of the wound defective electrode 3 close to the second driving member 300. When the second driving member 300 continues to drive the mounting frame 210 to make the reel 230 continue to move in the direction away from the first side 110 of the partition plate 100, the defective electrode 3 wound on the reel 230 can be removed under the action of the pin 500.

[0055] It should be noted that, in order to facilitate the insertion of the latch 500 into the slot 321 , the cover body 240 is provided with an opening (not shown in the figure) for the latch 500 to pass through.

[0056] Of course, in order to receive the fallen defective electrode pieces 3, a defective electrode piece 3 collection box is also provided below the reel 230.

[0057] Optional, please continue to refer to Figure 2-Figure 4 The pole piece winding device 1 also includes a clamping member 800, which is located on the first side 110 and is used to clamp or loosen the pole piece 3. It can be understood that during the winding process of the defective pole piece 3, the initial end of the defective pole piece 3 can be clamped into the clamping member 800 to put the pole piece 3 in a tensioned state, which is convenient for pre-rolling the defective pole piece 3. After pre-rolling, the clamping member 800 can loosen the pole piece 3.

[0058] For example, the clamping member 800 may include a first pressing roller 810 and a second pressing roller 820, the pole piece 3 is located between the first pressing roller 810 and the second pressing roller 820, and the first pressing roller 810 and the second pressing roller 820 are used to clamp or release the pole piece 3. In other words, the first pressing roller 810 and the second pressing roller 820 can be close to or away from each other, thereby achieving the function of clamping or releasing the pole piece 3.

[0059] It should be noted that the first pressing roller 810 and the second pressing roller 820 are moved closer to or farther away from each other according to conventional means in the art, which will not be described in detail here.

[0060] Optionally, the winding mechanism 200 further includes a dust suction pipe 252, which is connected to the dust collecting box 250 and is used to suck out the debris in the dust collecting box 250. Figure 1For reference, when the reel 230 extends into the first side 110 of the partition 100, there may be a wound battery cell under the reel 230. When the dust collecting box 250 is full of debris and is not manually cleaned in time, the debris in the dust collecting box 250 may fall, which may cause the debris to contact the battery cell.

[0061] The dust suction pipe 252 can suck out the debris in the dust box 250. It should be noted that the end of the dust suction pipe 252 away from the dust box 250 is used to connect to an external debris box (not shown in the figure) to facilitate the collection of debris in the dust box 250.

[0062] Optional, please refer to Figure 6-Figure 7 A receiving plate 251 is provided in the dust collecting box 250, and the receiving plate 251 divides the dust collecting box 250 into an upper box body and a lower box body. The upper box body is closer to the mounting frame 210 relative to the lower box body. The receiving plate 251 is provided with a plurality of through holes 2511 arranged at intervals, and the upper box body is connected to the lower box body through the through holes 2511.

[0063] The winding mechanism 200 further includes a fourth driving member 900 and a brush 211. The fourth driving member 900 is disposed on the mounting frame 210. The fourth driving member 900 is connected to the dust collecting box 250 or the brush 211. The brush 211 is located between the upper box body and the mounting frame 210 and is used to drive the dust collecting box 250 or the brush 211 to move along a preset direction, which is parallel to the axis direction of the reel 230. It can be understood that the brush 211 and the dust collecting box 250 can move relative to each other through the fourth driving member 900, so that the brush 211 cleans the debris in the upper box body.

[0064] It can be understood that during the relative movement between the brush 211 and the dust collecting box 250, the debris on the upper box body can be moved, and the debris can enter the lower box body through the through hole 2511. It should be noted that the dust suction pipe 252 is connected to the lower box body, and the dust suction pipe 252 can suck out the dust in the lower box body or the upper box body.

[0065] In detail, the fourth driving member 900 includes a cylinder and a connecting block connected to each other. The cylinder is disposed on the mounting frame 210 , and the connecting block is connected to the dust collecting box 250 .

[0066] That is to say, the cylinder of the fourth connecting member drives the dust collecting box 250 to move in a preset direction through the connecting block.

[0067] In detail, in this embodiment, a tab guide plate 1000 and a pressing member 1100 are further provided at one end of the cover body 240 away from the first driving member 220 .

[0068] It should be noted that in the actual production process, please refer to Figure 1-Figure 5When the defective detection sensor 600 detects that the electrode 3 is not waste, that is, when a defective product is detected, the second driving member 300 drives the winding mechanism 200 to move from the second side 120 of the partition plate 100 through the through hole 130 to the first side 110 of the partition plate 100, so that the reel 230 is located on the first side 110 of the partition plate 100 and close to the electrode 3, and the electrode 3 enters the notch 321 of the reel 230, so as to pre-wind the defective electrode 3. Pre-winding can be understood as setting the electrode 3 on the reel 230, and rotating the reel 230 so that the electrode 3 is pre-wound on the reel 230 for a certain number of turns. In addition, at this time, the dust collecting box 250 is also located on the first side 110 of the partition plate 100 to shield the battery cell located below the reel 230, so as to reduce the debris and dust of the electrode 3 falling on the battery cell.

[0069] Then, the reel 230 is rotated by the first driving member 220 to roll the defective electrode piece 3 into a circle. In this process, the pressing member 1100 presses the outer edge of the circular electrode piece 3, and the electrode ear guide plate 1000 guides the electrode ear to prevent the electrode ear from bending back during the winding process. When the end of the defective electrode piece 3 enters the cutting range of the cutter 700, the cutter 700 will cut off the electrode piece 3.

[0070] When the winding of the bad electrode 3 is completed, the second driving member 300 will drive the winding mechanism 200 to move toward the second side 120 of the partition plate 100. At this time, the dust collecting box 250 also moves toward the first side 110 away from the partition plate 100, and then the third driving member 400 drives the latch 500 to move downward and insert it into the slot 321 of the reel 230, and make the latch 500 located at the end of the bad electrode 3 close to the second driving member 300. Under the continued drive of the second driving member 300, the latch 500 will remove the bad electrode 3 on the reel 230, and the bad electrode 3 will fall into the bad electrode collection box 2.

[0071] In summary, a pole piece winding device 1 provided in an embodiment of the utility model includes a winding mechanism 200 and a partition plate 100. The winding mechanism 200 includes a mounting frame 210, a first driving member 220, a reel 230, a cover body 240 and a dust collecting box 250. The first driving member 220 is mounted on the mounting frame 210, one end of the reel 230 is connected to the first driving member 220, and the first driving member 220 is used to drive the reel 230 to rotate around its own axis. The cover body 240 is connected to the mounting frame 210 and is covered on the reel 230. The dust collecting box 250 is arranged on a side of the mounting frame 210 away from the cover body 240, and the opening of the dust collecting box 250 faces the reel 230. The partition plate 100 has a first The partition plate 100 is further provided with a through hole 130 passing through the first side 110 and the second side 120. The first side 110 of the partition plate 100 has a pole piece 3. The second side 120 of the partition plate 100 is provided with a second driving member 300. The second driving member 300 is connected to the mounting frame 210 and is used to drive the winding mechanism 200 to pass through the through hole 130 from the second side 120. During the cutting process of the cutter 700, due to the setting of the cover body 240, the debris and dust generated by cutting the defective pole piece 3 can be effectively prevented from entering the battery cell.

[0072] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pole piece winding device, characterized in that: include: The winding mechanism comprises a mounting frame, a first driving member, a reel, a cover body and a dust collecting box, wherein the first driving member is mounted on the mounting frame, one end of the reel is connected to the first driving member, the first driving member is used to drive the reel to rotate around its own axis, the cover body is connected to the mounting frame and is covered on the reel, the dust collecting box is arranged on a side of the mounting frame away from the cover body, and the opening of the dust collecting box faces the reel; A partition plate; the partition plate has a first side and a second side, the partition plate is also provided with a through hole passing through the first side and the second side, the first side of the partition plate has a pole piece, the second side of the partition plate is provided with a second driving member, the second driving member is connected to the mounting frame, and is used to drive the winding mechanism to pass through the through hole from the second side.

2. The pole piece winding device according to claim 1, characterized in that: The second driving member includes a frame, a second driving motor, a second screw and a second screw nut. The second driving motor is arranged on the frame, the frame is connected to the second side of the partition plate, the second screw is connected to the second driving motor, the second screw nut is sleeved on the second screw and connected to the mounting frame, and the extension direction of the screw is parallel to the axis of the reel.

3. The pole piece winding device according to claim 1, characterized in that: A notch is provided at one end of the reel away from the second driving member, and the notch extends along the axial direction of the reel.

4. The pole piece winding device according to claim 3, characterized in that: The pole piece winding device also includes a third driving member and a latch, wherein the driving end of the third driving member is connected to the latch and is used to drive the latch to move along a preset direction so as to be plugged into the slot, wherein the preset direction is perpendicular to the axial direction of the winding shaft.

5. The pole piece winding device according to claim 1, characterized in that: The pole piece winding device also includes a defect detection sensor and a cutter. The defect detection sensor is used to detect whether the pole piece is waste, and the cutter is used to cut off the pole piece.

6. The pole piece winding device according to claim 1, characterized in that: The pole piece winding device further comprises a clamping member, which is located at the first side and is used for clamping or releasing the pole piece.

7. The pole piece winding device according to claim 6, characterized in that: The clamping member includes a first pressing roller and a second pressing roller, the pole piece is located between the first pressing roller and the second pressing roller, and the first pressing roller and the second pressing roller are used to clamp or release the pole piece.

8. The pole piece winding device according to claim 1, characterized in that: The winding mechanism also includes a dust suction pipe, which is connected to the dust receiving box and is used to suck out the debris in the dust receiving box.

9. The pole piece winding device according to claim 8, characterized in that: A receiving plate is provided in the dust collecting box, the receiving plate divides the dust collecting box into an upper box body and a lower box body, the upper box body is closer to the mounting frame than the lower box body, the receiving plate is provided with a plurality of through holes arranged at intervals, and the upper box body is connected with the lower box body through the through holes; The winding mechanism also includes a fourth driving member and a brush. The fourth driving member is arranged on the mounting frame. The fourth driving member is connected to the dust collecting box or the brush. The brush is located between the upper box body and the mounting frame, and is used to drive the dust collecting box or the brush to move in a preset direction, and the preset direction is parallel to the extension direction of the axis of the reel.

10. The pole piece winding device according to claim 9, characterized in that: The fourth driving member includes a cylinder and a connecting block connected to each other. The cylinder is arranged on the mounting frame, and the connecting block is connected to the dust collecting box.

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