Deviation rectifying mechanism and battery cell winding equipment

Abstract

The utility model discloses a deviation rectifying mechanism and battery cell winding equipment. According to the technical scheme, the first deviation rectifying assembly and the mounting base are arranged in a separated mode. The battery diaphragm roll is arranged on the first deviation rectifying part in a sleeving mode, the first deviation rectifying part is movably connected to the installation base, the first sensing part can detect the winding position of the battery diaphragm on the first deviation rectifying part, and when the battery diaphragm deviates from the first winding position, the installation base is kept in the original state, and the installation base and other assemblies connected to the installation base can continue to operate stably; and the first deviation rectifying part responds to a detection signal of the first sensing part and quickly rectifies the deviation of the battery diaphragm, so that the battery diaphragm can quickly return to the first winding position. According to the technical scheme, rapid deviation correction of the deviated battery diaphragm can be achieved, and the winding efficiency and quality of the battery diaphragm are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production equipment, in particular to a deviation correction mechanism and battery core winding equipment. Background Art

[0002] Before the lithium-ion battery cell is rolled, the battery diaphragm generally needs to be unfolded, tested, rolled and other processing procedures. However, due to the unevenness of the battery diaphragm material and the roller installation problem of the traction mechanism for pulling the battery diaphragm, the winding position of the battery diaphragm is very easy to deviate when it flows between the above-mentioned procedures. Therefore, a correction mechanism needs to be set on the battery cell winding machine to correct the position of the battery diaphragm that has been offset. In the prior art, the battery diaphragm correction structure is generally fixedly connected to the base of the battery cell winding machine. On the one hand, the correction amount of the battery diaphragm correction structure is fixed, and the correction ability is low. When the battery diaphragm is offset too much, it is necessary to stop the machine for manual intervention, which reduces the production efficiency of the battery cell winding machine. On the other hand, the battery diaphragm correction structure is fixed to the base of the battery cell winding machine. When the battery diaphragm is offset, the base drives the roller to move to correct the battery diaphragm. The battery diaphragm correction mechanism responds slowly, has low correction efficiency, and poor correction ability, which ultimately makes the battery diaphragm winding quality poor, which is not conducive to the winding of the battery cell. Utility Model Content

[0003] The main purpose of the utility model is to provide a battery core winding device with a deviation correction mechanism, which can realize rapid deviation correction of a deviated battery separator and improve the efficiency and quality of battery separator winding.

[0004] To achieve the above-mentioned purpose, the utility model proposes a correction mechanism, which includes a mounting seat and a first correction component. The first correction component is movably connected to the mounting seat, and the first correction component includes a first sensor and a first correction part. The battery diaphragm roll is arranged on the first correction part, and the first correction part is provided with a first winding position. The first sensor can detect the winding position of the battery diaphragm on the first correction part. When the battery diaphragm deviates from the first winding position, the first correction part can move relative to the mounting seat to restore the battery diaphragm to the first winding position.

[0005] In some embodiments, the first correction part includes a first driver and a first roller body. The outer peripheral wall of the first roller body is provided with a first winding position. The mounting seat has a first mounting surface. The first end of the first roller body is connected to the first mounting surface. The first driver can drive the first roller body to move relative to the first mounting surface.

[0006] In some embodiments, the first driver can drive the first roller to move closer to or farther from the first mounting surface along a first direction, wherein the first direction is perpendicular to the first mounting surface.

[0007] In some embodiments, the mounting seat limits a first through hole, the first end is passed through the first through hole, and the first driver and the first roller body are arranged on both sides of the mounting seat opposite to each other along a direction parallel to the axis of the first roller body. The first end is connected to the first driver, and the first roller body also includes a second end arranged opposite to the first end, and the second end is suspended.

[0008] In some embodiments, the outer wall is provided with a first positioning groove and a second positioning groove for clamping the battery diaphragm, wherein the first positioning groove is provided at one end of the first roller body close to the first mounting surface, and the second positioning groove is provided at one end of the first roller body away from the first mounting surface.

[0009] In some embodiments, the first sensing unit includes a first sensor and a first conveying member, the first sensor is used to detect the winding position of the battery diaphragm on the first correcting unit, and the first conveying member is used to transfer the battery diaphragm from the first correcting unit to the first sensor.

[0010] In some embodiments, the correction mechanism also includes a second correction component, the second correction component includes a second sensing part and a second correction part, the second correction part is provided with a second winding position, the second winding position is used to wind the battery diaphragm corrected by the first correction component, the second sensing part can detect the winding position of the battery diaphragm on the second correction part, when the battery diaphragm deviates from the second winding position, the second correction part can move relative to the mounting seat to return the battery diaphragm to the second winding position.

[0011] In some embodiments, the second correction group includes a second roller body and a second driver. The outer peripheral wall of the second roller body is provided with a second winding position. The mounting seat has a first mounting surface. The second end of the second roller body is connected to the first mounting surface. The second driver can drive the second roller body to approach or move away from the mounting seat in a direction parallel to the axis of the second roller body.

[0012] On the other hand, the present application further provides a battery cell winding device, which is a correction mechanism of any of the above-mentioned embodiments of the battery cell winding device.

[0013] In some embodiments, the battery cell winding equipment also includes a pressing roller assembly, which includes a third roller body and a fourth roller body for rolling the battery diaphragm. One end of the battery diaphragm is connected to the second correcting assembly, and the other end is clamped between the third roller body and the fourth roller body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the technical solution of the present application, the first deviation correction component is separately arranged from the mounting seat. The first deviation correction part is movably connected to the mounting seat, and the first sensing part can detect the winding position of the battery diaphragm in the first deviation correction part. When the battery diaphragm deviates from the first winding position, the mounting seat remains in its original state, and the mounting seat and other components connected to the mounting seat can continue to operate stably. The first deviation correction part responds to the detection signal of the first sensing part, and quickly corrects the battery diaphragm, so that the battery diaphragm can quickly return to the first winding position. The technical solution of the present application can realize the rapid deviation correction of the offset battery diaphragm and improve the efficiency and quality of the battery diaphragm winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the assembly structure of the first deviation-correcting component and the mounting seat of the deviation-correcting mechanism in one embodiment of the utility model;

[0018] Figure 2 This is a structural schematic diagram of the second deviation-correcting component in one embodiment of the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of a battery cell winding device in one embodiment of the utility model;

[0020] Figure 4 It is a partial structural schematic diagram of a battery cell winding device in one embodiment of the utility model, wherein the battery cell winding device is wound with a battery separator.

[0021] Description of Figure Numbers:

[0022] Correction mechanism 100;

[0023] Mounting seat 110; first mounting surface 111; first through hole 112;

[0024] The first deviation-correcting component 120; the first sensing unit 121; the first sensor 1211; the first conveying member 1212; the first deviation-correcting unit 122; the first winding position 1221; the first driver 1222; the first roller 1223; the peripheral wall 1224; the first end 1225; the second end 1226; the first positioning groove 1227; the second positioning groove 1228;

[0025] The second deviation-correcting assembly 130; the second sensing unit 131; the second deviation-correcting unit 132; the second roller 1321; the second driver 1322; the second winding position 133;

[0026] Battery cell winding equipment 200;

[0027] Pressing roller assembly 210; third roller body 211; fourth roller body 212;

[0028] Battery separator 300;

[0029] First direction X;

[0030] The second direction Y;

[0031] The third direction Z.

[0032] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Lithium-ion batteries have high capacity and long life, and are widely used in electric bicycles, electric vehicles, solar photovoltaic and wind power storage systems, electronic equipment and other fields. The rolling of lithium-ion battery cells is mainly completed by a cell winding machine, which forms lithium battery cells by stacking, winding and affixing termination glue on the positive electrode sheet, negative electrode sheet and battery separator in a certain order. Before the lithium-ion battery cell is rolled, the battery separator generally needs to be unfolded, tested, rolled and other processing procedures. However, due to the unevenness of the battery separator material and the installation problem of the roller of the traction mechanism for pulling the battery separator, the winding position of the battery separator is very easy to shift when it flows between the above-mentioned processes. Therefore, a correction mechanism needs to be set on the cell winding machine to correct the position of the battery separator that has shifted. In the prior art, the battery diaphragm correction structure is generally fixedly connected to the base of the battery cell winding machine. On the one hand, the correction amount of the battery diaphragm correction structure is fixed, and the correction ability is low. When the battery diaphragm is offset too much, it is necessary to stop the machine for manual intervention, which increases the number of times the battery diaphragm comes into contact with people, making the battery diaphragm easily contaminated, and reducing the production efficiency of the battery cell winding machine. On the other hand, the battery diaphragm correction structure is fixed to the base of the battery cell winding machine. When the battery diaphragm is offset, the base drives the roller to move to correct the battery diaphragm. The battery diaphragm correction mechanism responds slowly, has low correction efficiency, and poor correction ability, which ultimately results in poor winding quality of the battery diaphragm, which is not conducive to the winding of the battery cell.

[0035] To solve the above technical problems, Figures 1 to 4 As shown, the present application proposes a deviation-correcting mechanism 100 , which includes a mounting seat 110 and a first deviation-correcting component 120 .

[0036] like Figure 1 as well as Figure 3 As shown, the mounting seat 110 is used to connect and mount various components of the battery cell winding device 200 .

[0037] like Figure 1 as well as Figure 3 As shown, the first correcting component 120 is movably connected to the mounting seat 110, and the first correcting component 120 includes a first sensing part 121 and a first correcting part 122. The battery diaphragm roll is arranged on the first correcting part 122. The first correcting part 122 is provided with a first winding position 1221. The first sensing part 121 can detect the winding position of the battery diaphragm 300 on the first correcting part 122. When the battery diaphragm 300 deviates from the first winding position 1221, the first correcting part 122 can move relative to the mounting seat 110 to make the battery diaphragm 300 return to the first winding position 1221.

[0038] In the technical solution of the present application, the first deviation-correcting component 120 is separately arranged from the mounting seat 110. The first deviation-correcting part 122 is movably connected to the mounting seat 110, and the first sensing part 121 can detect the winding position of the battery separator 300 in the first deviation-correcting part 122. When the battery separator 300 deviates from the first winding position 1221, the mounting seat 110 remains in its original state, and the mounting seat 110 and other components connected to the mounting seat 110 can continue to operate stably. The first deviation-correcting part 122 responds to the detection signal of the first sensing part 121, and quickly corrects the battery separator 300, so that the battery separator 300 can quickly return to the first winding position 1221. The technical solution of the present application can realize the rapid deviation correction of the deviated battery separator 300, and improve the efficiency and quality of the winding of the battery separator 300.

[0039] According to different winding requirements of the battery separator 300, the first deviation-correcting portion 122 can be configured in different forms. Figure 1 as well as Figure 3 As shown, in this embodiment, the first deviation correction part 122 includes a first driver 1222 and a first roller 1223, the outer peripheral wall 1224 of the first roller 1223 is provided with a first winding position 1221, the mounting seat 110 has a first mounting surface 111, the first end 1225 of the first roller 1223 is connected to the first mounting surface 111, and the first driver 1222 can drive the first roller 1223 to move relative to the first mounting surface 111. The first roller 1223 and the first driver 1222 can be connected to the first mounting surface 111 in any suitable manner such as hinged or clamped. The first driver 1222 can be configured as any suitable form such as a pneumatic drive part or an electric drive part. The battery diaphragm 300 is wound around the first roller 1223, and the first roller 1223 moves relative to the first mounting surface 111, so that the first roller 1223 can correct the deviation of the battery diaphragm 300. The first roller body 1223 can move and swing relative to the first installation surface 111, and can also rotate along the axis of the first roller body 1223 relative to the first installation surface 111. The arrangement of the first roller body 1223 greatly improves the flexibility of the first deviation correcting part 122 in adjusting the roller body.

[0040] To adjust the battery separator 300, the first roller 1223 can move relative to the first mounting in any suitable manner. Figure 1 as well as Figure 3As shown, in the present embodiment, the first driver 1222 can drive the first roller 1223 to move along the first direction X, wherein the first direction X is perpendicular to the first mounting surface 111. Specifically, when the battery separator 300 deviates toward the side away from the first mounting surface 111, the first roller 1223 can approach the first mounting surface 111 along the first direction X, and drive the battery separator 300 to move toward the side close to the first mounting surface 111, so that the battery separator 300 returns to the first winding position 1221. When the battery separator 300 deviates toward the side close to the first mounting surface 111, the first roller 1223 can move away from the first mounting surface 111 along the first direction X, and drive the battery separator 300 to move toward the side away from the first mounting surface 111, so that the battery separator 300 returns to the first winding position 1221. The first deviation correction portion 122 can be connected to the first mounting surface 111 in any suitable manner. As Figure 1 as well as Figure 3 As shown, in this embodiment, the mounting seat 110 limits the first through hole 112, the first end 1225 is inserted into the first through hole 112, and the first driver 1222 and the first roller 1223 are arranged on both sides of the mounting seat 110 in a direction parallel to the axis of the first roller 1223, and the first end 1225 is connected to the first driver 1222. The first roller 1223 includes a second end 1226 arranged opposite to the first end 1225, and the second end 1226 is suspended. The first end 1225 is inserted into the first through hole 112, and the second end 1226 is suspended. The first driver 1222 can drive the first roller 1223 to move quickly in the first direction X, the second direction Y, and the third direction Z to adjust the position of the battery separator 300. The first driver 1222 and the first roller body 1223 are respectively arranged on both sides of the mounting seat 110 along the first direction X, and the first end 1225 is penetrated through the first through hole 112, which improves the connection stability between the first correcting part 122 and the mounting seat 110 and enables the first correcting part 122 to quickly adjust the offset of the battery diaphragm 300.

[0041] In order to enhance the limiting ability of the first roller 1223 on the battery separator 300, a structure for clamping the battery separator 300 may be provided on the first roller 1223. The clamping structure contacts the battery separator 300 so that the winding of the battery separator 300 on the roller is more stable. Figure 1 as well as Figure 3As shown, in this embodiment, the outer peripheral wall 1224 is provided with a first positioning groove 1227 and a second positioning groove 1228 for clamping the battery separator 300, wherein the first positioning groove 1227 is provided at one end of the first roller body 1223 close to the first mounting surface 111, and the second positioning groove 1228 is provided at one end of the first roller body 1223 away from the first mounting surface 111. In some embodiments, along the direction parallel to the axis of the first roller body 1223, the length between the first positioning groove 1227 and the second positioning groove 1228 is not greater than the width of the battery separator 300. Along the direction parallel to the axis of the first roller body 1223, the side edge of one side of the battery separator 300 is clamped in the first positioning groove 1227, and the side edge of the other side is clamped in the second positioning groove 1228. It is understandable that the first positioning groove 1227 can be connected to the chamber of the battery separator 300 and can extend along the radial direction of the first roller 1223, or can be connected to the axial direction of the first roller 1223, as long as the first positioning groove 1227 can be connected to the battery separator 300 and assist in positioning the battery separator 300 on the first roller 1223 when the battery cell is wound. The second positioning groove 1228 can also be arranged in the same way, which will not be described in detail here.

[0042] The first sensor 121 can be separated from the first deviation-correcting portion 122. The first deviation-correcting portion 122 is movably connected to the mounting seat 110. The first sensor 121 can be fixedly connected to the mounting seat 110 or movably connected to the mounting seat 110. Figure 1 as well as Figure 3 As shown, in this embodiment, the first sensor unit 121 is fixedly connected to the mounting seat 110, and the first sensor unit 121 includes a first sensor 1211 and a first conveying member 1212. The first sensor 1211 is used to detect the winding position of the battery separator 300 on the first deviation correction unit 122, and the first conveying member 1212 is used to transmit the battery separator 300 from the first deviation correction unit 122 to the first sensor 1211. Specifically, in some embodiments, the first sensor can detect the winding accuracy of the battery separator 300 on the first roller 1223, and the first roller 1223 can quickly respond to the detection signal of the first sensor. One end of the battery separator 300 is connected to the first roller 1223, and the other end is connected to the first conveying member 1212. When the battery separator 300 deviates, it can be quickly corrected by the first roller 1223. The setting of the first conveying member 1212 enables the battery separator 300 that has been corrected to enter the subsequent winding process more stably, effectively reducing the risk of the battery separator 300 deviating again. Along the first direction X, the length of the first conveying member 1212 is not less than the width of the battery separator 300 .

[0043] like Figure 2 as well as Figure 3As shown, in order to improve the correction ability of the correction mechanism 100, the correction mechanism 100 may further include a second correction component 130. The second correction component 130 may be connected to the mounting seat 110 or may be independently provided. In this embodiment, the second correction component 130 includes a second sensor 131 and a second correction component 132. The second correction component 132 is provided with a second winding position 133. The second winding position 133 is used to wind the battery separator 300 corrected by the first correction component 120. The second sensor 131 can detect the winding position of the battery separator 300 on the second correction component 132. When the battery separator 300 deviates from the second winding position 133, the second correction component 132 can move relative to the mounting seat 110 so that the battery separator 300 returns to the second winding position 133. The second correction component 132 can move relative to the first mounting surface 111. The first correction component 120 cooperates with the second correction component 130 to achieve multi-stage correction of the battery separator 300. It is understandable that the correction mechanism 100 may also be provided with a third correction component to further improve the winding accuracy of the battery separator 300. Specifically, the battery separator 300 enters the correction mechanism 100 from the first correction component 120, and the battery separator 300 can be stored in the cache mechanism after the first correction component 120 corrects the battery separator 300. The correction mechanism 100 is provided with an output end of the battery separator 300, and the output end can roll the battery separator 300, etc. The second correction component 130 can correct the battery separator 300 before output again to improve the output accuracy of the battery separator 300. The third correction component can be provided at any suitable position between the first correction component 120 and the second correction component 130, and is not limited here.

[0044] According to different usage requirements, the second deviation-correcting component 130 can move in different directions relative to the first mounting surface 111 to correct the deviation of the battery separator 300. Figure 2 as well as Figure 3 As shown, in this embodiment, the second deviation correction component includes a second roller 1321 and a second driver 1322, the outer peripheral wall 1224 of the second roller 1321 is provided with a second winding position 133, the mounting seat 110 has a first mounting surface 111, the second end 1226 of the second roller 1321 is connected to the first mounting surface 111, and the second driver 1322 can drive the second roller 1321 to approach or move away from the first mounting surface 111 along a direction parallel to the axis of the second roller 1321. Specifically, the second driving unit can drive the second roller 1321 to move along the first direction X. The setting of the second deviation correction component 130 enables the deviation correction mechanism 100 to respond to the battery separator 300 faster and with higher accuracy.

[0045] like Figure 3As shown, the present application also provides a battery cell winding device 200, which includes the correction mechanism 100 of any of the above embodiments. Thanks to the improvement of the correction mechanism 100, the battery cell winding device 200 of this embodiment has the same technical effect as the correction mechanism 100, which will not be repeated here.

[0046] According to different usage requirements, such as Figure 3 as well as Figure 4 As shown, the battery cell winding device 200 may further include a roller assembly 210. In this embodiment, the roller assembly 210 includes a third roller 211 and a fourth roller 212 for rolling the battery separator 300. One end of the battery separator 300 is connected to the second deviation correction assembly 130, and the other end is sandwiched between the third roller 211 and the fourth roller 212. The third roller 211 and the fourth roller 212 are used to roll the battery separator 300. That is to say, the second deviation correction assembly 130 is arranged adjacent to the roller assembly 210, and the battery separator 300 to be rolled by the roller assembly 210 can be corrected by the second deviation correction assembly 130 in time, thereby effectively ensuring the processing accuracy of the battery separator 300. It can be understood that in order to improve the rolling effect, the rolling assembly 210 may also include a fifth roller and a sixth roller arranged in parallel and spaced apart, and the fifth roller and the sixth roller are used to perform secondary rolling on the separator rolled by the third roller and the fourth roller.

[0047] In an embodiment, the first correcting assembly 120 is arranged on the input side of the battery separator 300, and the second correcting assembly 130 is arranged on the output side of the battery separator 300. The cooperation between the first correcting assembly 120 and the second correcting assembly 130 enables the first correcting assembly 120 and the second correcting assembly 130 to correct the battery separator 300 only by a small movement when the battery separator 300 is offset, thereby avoiding a large range of movement of the correcting assembly, which also helps to improve the corresponding speed and accuracy of the correction. Specifically, the first correcting assembly 120 can monitor the input battery separator 300, and when the battery separator 300 is offset, the first correcting assembly 120 can quickly correct the battery separator 300. The second correcting assembly 130 can monitor the output battery separator 300, and when the battery separator 300 is offset, the second correcting assembly 130 can quickly correct the battery separator 300. The coordinated arrangement of the first correcting component 120 and the second correcting component 130, on the one hand, enables timely detection of the deviation of the battery separator 300; on the other hand, the first correcting component 120 is separately arranged from the mounting base 110, and the first correcting component 120 can quickly respond to the signal of the deviation of the battery separator 300 and correct the battery separator 300, effectively avoiding the problems of complex structure of the correcting equipment, slow correction response, and poor effect, and can achieve rapid correction of the deviated battery separator 300, thereby improving the efficiency and quality of winding the battery separator 300.

[0048] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0049] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or", "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. 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 the utility model.

[0050] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A deviation correction mechanism, characterized in that: include: Mounting seat; A first correcting component is movably connected to the mounting seat, the first correcting component includes a first sensing part and a first correcting part, the battery diaphragm roll is arranged on the first correcting part, the first correcting part is provided with a first winding position, the first sensing part can detect the winding position of the battery diaphragm on the first correcting part, when the battery diaphragm deviates from the first winding position, the first correcting part can move relative to the mounting seat to make the battery diaphragm return to the first winding position.

2. The deviation correction mechanism according to claim 1, characterized in that: The first deviation correcting part includes a first driver and a first roller body. The outer peripheral wall of the first roller body is provided with the first winding position. The mounting seat has a first mounting surface. The first end of the first roller body is connected to the first mounting surface. The first driver can drive the first roller body to move relative to the first mounting surface.

3. The deviation correction mechanism according to claim 2, characterized in that: The first driver can drive the first roller to approach or move away from the first installation surface along a first direction, wherein the first direction is perpendicular to the first installation surface.

4. The correction mechanism according to claim 2, characterized in that: The mounting seat limits a first through hole, the first end is passed through the first through hole, and along a direction parallel to the axis of the first roller body, the first driver and the first roller body are arranged on both sides of the mounting seat opposite to each other, the first end is connected to the first driver, and the first roller body also includes a second end arranged opposite to the first end, and the second end is suspended.

5. The deviation correction mechanism according to claim 2, characterized in that: The outer wall is provided with a first positioning groove and a second positioning groove for clamping the battery diaphragm, wherein the first positioning groove is provided at one end of the first roller body close to the first mounting surface, and the second positioning groove is provided at one end of the first roller body away from the first mounting surface.

6. The deviation correction mechanism according to claim 1, characterized in that: The first sensing unit includes a first sensor and a first conveying member, the first sensor is used to detect the winding position of the battery separator on the first deviation correcting unit, and the first conveying member is used to transfer the battery separator from the first deviation correcting unit to the first sensor.

7. The deviation correction mechanism according to claim 1, characterized in that: The correcting mechanism also includes a second correcting component, which includes a second sensing part and a second correcting part. The second correcting part is provided with a second winding position, and the second winding position is used to wind the battery diaphragm corrected by the first correcting component. The second sensing part can detect the winding position of the battery diaphragm on the second correcting part. When the battery diaphragm deviates from the second winding position, the second correcting part can move relative to the mounting seat to restore the battery diaphragm to the second winding position.

8. The deviation correction mechanism according to claim 7, characterized in that: The second deviation correcting portion includes a second roller body and a second driver. The outer peripheral wall of the second roller body is provided with the second winding position. The mounting seat has a first mounting surface. The second end of the second roller body is connected to the first mounting surface. The second driver can drive the second roller body to approach or move away from the mounting seat in a direction parallel to the axis of the second roller body.

9. A battery cell winding device, characterized in that: It includes the correction mechanism described in any one of claims 1 to 8.

10. The battery cell winding device according to claim 9, characterized in that: The battery cell winding equipment also includes a pressing roller assembly, which includes a third roller body and a fourth roller body for rolling the battery separator. One end of the battery separator is connected to the second deviation correction assembly, and the other end is clamped between the third roller body and the fourth roller body.

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