CN217675820U

CN217675820U - Battery winding and unwinding mechanism and battery winding equipment

Info

Publication number: CN217675820U
Application number: CN202221637496.XU
Authority: CN
Inventors: 石爱武; 罗逸凡
Original assignee: Shenzhen Ange Intelligent Control Technology Co ltd
Current assignee: Shenzhen Ange Intelligent Control Technology Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-10-28
Anticipated expiration: 2032-06-28

Abstract

The utility model belongs to the technical field of the battery production, especially, relate to a unwinding mechanism and battery winding equipment are received to battery. The battery winding and unwinding mechanism comprises a mounting seat, a winding shaft and a supporting assembly; the winding shaft comprises a mounting end and a free end, and the mounting end of the winding shaft is rotatably mounted on the mounting seat; the supporting component comprises a driving component, a supporting rotating shaft and a pull-up supporting component provided with a hook groove; the supporting rotating shaft is rotatably arranged on the mounting seat; the pull-up supporting piece is arranged on the supporting rotating shaft; the driving piece is installed on the installation seat, the output end of the driving piece is connected with the supporting rotating shaft and is used for driving the supporting rotating shaft to drive the pull-up supporting piece to rotate, so that the hook groove hooks and supports the free end of the winding shaft or unlocks the free end of the winding shaft from the hook groove. The utility model discloses in, pull-up support piece can play the effect of supporting the unreeling shaft, prevents to unreel the axle because the coil stock of coiling on it is overweight and take place crooked phenomenon, has guaranteed the stability that the coil stock was carried to the winding shaft.

Description

Unwinding mechanism and battery winding equipment are received to battery

Technical Field

The utility model belongs to the technical field of battery production, especially, relate to a unwinding mechanism and battery winding equipment are received to battery.

Background

The battery winding equipment is production equipment for winding a positive plate, a negative plate and diaphragm paper into a battery cell. Existing battery winding equipment generally includes the following parts: the winding and unwinding device comprises a winding and unwinding mechanism for driving a positive plate, a negative plate and a diaphragm paper supporting rotating shaft to rotate so as to feed a winding battery, a constant tension mechanism for keeping constant tension of the positive plate, the negative plate and the diaphragm paper in the winding and unwinding process, a pole piece cleaning mechanism for preventing short circuit of the battery pole piece, a winding head for winding the positive plate, the negative plate and the diaphragm paper into a battery cell, a cutter mechanism for cutting off the battery cell after winding is completed, and a discharging mechanism for discharging the formed battery cell.

Along with the development of the width direction of the aluminum shell lithium battery is longer and longer, the battery with the longer width correspondingly needs the positive plate, the negative plate and the diaphragm paper with the longer width, so that the positive and negative coil materials of the winding and unwinding mechanism are heavier and heavier. In the prior art, the positive and negative electrode coil stock with a large width is usually wound by increasing the length of the supporting rotating shaft, but the supporting rotating shaft with a large length has a risk of bending deformation in the use process, so that the quality of the positive and negative electrode coil stock conveyed by the winding and unwinding mechanism is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses there is bending deformation's technical problem in the support pivot to receiving unwinding mechanism among the prior art, provides a battery is received unwinding mechanism and battery winding equipment.

In view of the above technical problem, an embodiment of the present invention provides a battery winding and unwinding mechanism, which includes a mounting seat, a winding shaft, and a support assembly; the winding shaft comprises an installation end and a free end, and the installation end of the winding shaft is rotatably installed on the installation seat;

the supporting component comprises a driving component, a supporting rotating shaft and a pull-up supporting component provided with a hook groove; the supporting rotating shaft is rotatably arranged on the mounting seat; the pull-up supporting piece is arranged on the supporting rotating shaft; the driving assembly is installed on the installation seat, the output end of the driving assembly is connected with the supporting rotating shaft and is used for driving the supporting rotating shaft to drive the pull-up supporting piece to rotate, so that the hook groove hooks and supports the free end of the winding shaft or unlocks the free end of the winding shaft from the hook groove.

Optionally, the driving assembly includes a linear driving member and a push-pull rod, the linear driving member is mounted on the mounting seat, one end of the push-pull rod is rotatably connected to the output end of the linear driving member, the other end of the push-pull rod is connected to the support rotating shaft, and the push-pull rod is configured to convert the linear motion of the linear driving member into rotation of the support rotating shaft.

Optionally, the driving assembly further comprises a universal floating joint, and the output end of the linear driving member is connected with the push-pull rod through the universal floating joint.

Optionally, the support assembly further includes a buffer member mounted on the mounting base, and the buffer member is disposed opposite to the push-pull rod.

Optionally, the pull-up support piece includes the riser that is equipped with the groove and connects the pivot connecting piece of riser, the supporting component still includes the slip subassembly, the pull-up support piece passes through the slip subassembly slidable mounting be in support on the pivot.

Optionally, the sliding assembly includes a sliding block installed on the rotating shaft connecting piece and a guide rail installed on the supporting rotating shaft, and the pull-up supporting piece is installed on the supporting rotating shaft through the sliding block and the guide rail which are connected in a sliding manner.

Optionally, the support assembly further comprises an elastic reset piece, and the elastic reset piece is installed between the rotating shaft connecting piece and the support rotating shaft.

Optionally, the elasticity piece that resets includes installation pole, spring, installs support epaxial fixed block and install pivot connecting piece is last sliding block, the installation pole is installed on the fixed block, be equipped with the through-hole on the sliding block, the sliding block passes through the through-hole cup joints on the installation pole, the spring cup joints on the installation pole, just the spring is located the fixed block with between the sliding block.

Optionally, the support assembly further includes a first bearing sleeved on the support rotating shaft, and the support rotating shaft is rotatably mounted on the mounting seat through the first bearing.

Optionally, the battery winding and unwinding mechanism further comprises a second bearing sleeved on the winding shaft, and the hook groove hooks the winding shaft through the second bearing.

The utility model discloses another embodiment still provides a battery winding device, receive unwinding mechanism including foretell battery.

In the utility model, the winding shaft comprises a mounting end and a free end, and the mounting end of the winding shaft is rotatably mounted on the mounting seat; the supporting assembly comprises a driving assembly, a supporting rotating shaft and a pull-up supporting piece provided with a hook groove, the driving assembly is installed on the installation seat, and the supporting rotating shaft is rotatably installed on the installation seat; the output end of the driving assembly is connected with the supporting rotating shaft, and the pull-up supporting piece is installed on the supporting rotating shaft; the driving assembly is used for driving the supporting rotating shaft to drive the pull-up supporting piece to rotate, so that the hook groove hooks and supports the free end of the winding shaft or unlocks the free end of the winding shaft from the hook groove. Specifically, when the winding shaft is in the coil stock (positive plate, negative plate or diaphragm paper) of carrying electric core, drive assembly drives pull-up support piece rotates to the flagging state, and pull-up support piece's catching groove catches on the winding shaft, thereby pull-up support piece can play the effect of supporting the winding shaft, prevent the free end of winding shaft from taking place crooked phenomenon because the coil stock of coiling on it is overweight, guaranteed the stability that the coil stock was carried to the winding shaft. When the winding shaft is in a state of material changing or maintenance and the like, the driving assembly drives the pull-up supporting piece to rotate until the hook groove is separated from the winding shaft (namely, the free end of the winding shaft is unlocked from the hook groove), and at the moment, the pull-up supporting piece cannot interfere with the winding shaft. The utility model discloses in, this unwinding mechanism is received to battery's simple structure, low in manufacturing cost, convenient operation.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural view of a battery winding and unwinding mechanism according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a supporting assembly of the battery winding and unwinding mechanism according to an embodiment of the present invention;

fig. 3 is a schematic partial structural view of a support assembly according to an embodiment of the present invention;

fig. 4 is a partial schematic structural view of another perspective of the support assembly according to an embodiment of the present invention.

The reference numerals in the specification are as follows:

1. a winding shaft; 2. a support assembly; 21. a drive assembly; 211. a linear drive; 212. a push-pull rod; 213. a universal floating joint; 22. a support shaft; 23. pulling up the support; 231. a vertical plate; 2311. hooking a groove; 232. a rotating shaft connecting piece; 24. a buffer member; 25. a sliding assembly; 251. a slider; 252. a guide rail; 26. an elastic restoring member; 261. mounting a rod; 262. a fixed block; 263. a slider; 27. a first bearing; 3. a second bearing.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "middle", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a battery winding and unwinding mechanism, which includes a mounting base (not shown), a winding shaft 1 and a supporting assembly 2; the winding shaft 1 comprises a mounting end and a free end, and the mounting end of the winding shaft 1 is rotatably mounted on the mounting seat. It can be understood that the winding shaft 1 may be wound with a positive plate, a negative plate or a separator paper for making a battery cell; the winding shaft 1 is rotatably connected with the mounting seat, and the winding shaft 1 can be mounted on the mounting seat through a bearing.

The supporting component 2 comprises a driving component 21, a supporting rotating shaft 22 and a pull-up supporting component 23 provided with a hook groove 2311; the supporting rotating shaft 22 is rotatably mounted on the mounting seat; the pull-up supporting member 23 is mounted on the supporting rotation shaft 22; the driving assembly 21 is installed on the mounting seat, and an output end of the driving assembly is connected to the supporting rotating shaft 22 and is used for driving the supporting rotating shaft 22 to drive the pull-up supporting member 23 to rotate, so that the hook groove 2311 hooks and supports the free end of the winding shaft 1 or unlocks the free end of the winding shaft 1 from the hook groove 2311. It is understood that the support rotation shaft 22 is arranged above the winding shaft 1, and the axis of the support rotation shaft 22 is parallel to the axis of the winding shaft 1; the driving assembly 21 includes, but is not limited to, a rotating motor and the like.

Preferably, the mounting seat is provided with a mounting space, the driving assembly 21 is arranged in the mounting space, and the supporting rotating shaft 22 penetrates through a panel of the mounting seat and is connected with the pull-up supporting piece 23. Furthermore, the installation space further comprises an unreeling driving member for driving the reeling shaft 1 to rotate and move, one end of the reeling shaft 1 is connected with the output end of the unreeling driving member, and the other end of the reeling shaft 1 penetrates through the panel of the installation seat to reel the coil material.

In the utility model, the winding shaft 1 comprises a mounting end and a free end, and the mounting end of the winding shaft 1 is rotatably mounted on the mounting seat; the supporting assembly comprises a driving assembly 21, a supporting rotating shaft 22 and a pull-up supporting piece 23 provided with a hook groove 2311, the driving assembly 21 is installed on the installation seat, and the supporting rotating shaft 22 is rotatably installed on the installation seat; the output end of the driving assembly 21 is connected with the supporting rotating shaft 22, and the pull-up supporting piece 23 is installed on the supporting rotating shaft 22; the driving assembly 21 is configured to drive the supporting rotation shaft 22 to drive the pull-up supporting member 23 to rotate, so that the hook groove 2311 hooks and supports the free end of the winding shaft 1 or unlocks the free end of the winding shaft 1 from the hook groove 2311. Specifically, when the winding shaft 1 is located at a coil material (positive plate, negative plate or diaphragm paper) for conveying the electric core, the driving assembly 21 drives the upward-pulling supporting member 23 to rotate to a sagging state, and the hooking groove 2311 of the upward-pulling supporting member 23 hooks the winding shaft 1, so that the upward-pulling supporting member 23 can play a role in supporting the unwinding shaft 1, the phenomenon that the free end of the winding shaft 1 is bent due to the fact that the coil material wound thereon is too heavy is prevented, and the stability of the winding shaft 1 for conveying the coil material is ensured. When the winding shaft 1 is in a state of material changing or maintenance, the driving assembly 21 drives the pull-up supporting member 23 to rotate until the hook groove 2311 is separated from the winding shaft 1 (that is, the free end of the winding shaft 1 is unlocked from the hook groove 2311), and at this time, the pull-up supporting member 23 does not interfere with the winding shaft 1. The utility model discloses in, this unwinding mechanism is received to battery simple structure, low in manufacturing cost, convenient operation.

In one embodiment, as shown in fig. 1 and fig. 2, the driving assembly 21 includes a linear driving member 211 and a push-pull rod 212, the linear driving member 211 is mounted on the mounting seat, one end of the push-pull rod 212 is rotatably connected to the output end of the linear driving member 211, the other end of the push-pull rod 212 is connected to the supporting spindle 22, and the push-pull rod 212 is configured to convert the linear movement of the linear driving member 211 into the rotation of the supporting spindle 22. It is understood that the linear drive assembly 21 includes, but is not limited to, a pneumatic cylinder, a hydraulic cylinder, a linear motor, a lead screw nut assembly, and the like. Specifically, when the hook 2311 of the pull-up supporting member 23 needs to be unlocked from the free end of the winding shaft 1, the output end of the linear driving member 211 extends out, the output end of the linear driving member 211 drives the push-pull rod 212 to rotate in a first direction, and the push-pull rod 212 drives the supporting rotating shaft 22 and the pull-up supporting member 23 to rotate in the first direction, so that the hook 2311 of the pull-up supporting member 23 is disengaged from the winding shaft 1; when the hooking groove 2311 of the pull-up supporting member 23 needs to hook the winding shaft 1, the output end of the linear driving member 211 retracts, the output end of the linear driving member 211 drives the push-pull rod 212 to rotate around the second direction, and the push-pull rod 212 drives the supporting rotating shaft 22 and the pull-up supporting member 23 to rotate around the second direction, so that the hooking groove 2311 of the pull-up supporting member 23 hooks the winding shaft 1; illustratively, the first direction and the second direction are opposite. In this embodiment, the driving assembly 21 has a compact structure and high stability.

It should be noted that the connection portion of the push-pull rod 212 and the linear actuator 211 and the connection portion of the push-pull rod 212 and the support spindle 22 are eccentrically disposed, so that the push-pull rod 212 can convert the linear motion of the linear actuator 211 into the rotation of the support spindle 22.

Preferably, the linear driving member 211 is a pneumatic cylinder, and the driving assembly 21 further includes a speed regulating valve for regulating the extension and retraction speed of the pneumatic cylinder. The design of the speed regulating valve is convenient for the pneumatic cylinder to regulate the rotating speed of the pull-up supporting piece 23 to be within a proper speed range; the pneumatic cylinder can bear a large pulling force, that is, the pneumatic cylinder applies a large pulling force to the winding shaft 1 through the support rotating shaft 22 and the pull-up support 23; and the output end of the pneumatic cylinder can drive the push rod to rotate.

In one embodiment, as shown in fig. 2, the driving assembly 21 further includes a universal floating joint 213, and the output end of the linear driving member 211 is connected to the push-pull rod 212 through the universal floating joint 213; it can be understood that the universal floating joint 213 can prevent the push-pull rod 212 from being stuck to the output end of the linear driving member 211 when the output end of the linear driving member 211 drives the push-pull rod 212 to rotate, so as to ensure the stability when the driving assembly 21 drives the supporting shaft 22 to rotate.

In one embodiment, as shown in fig. 1, the support assembly 2 further includes a buffer member 24 mounted on the mounting seat, and the buffer member 24 is disposed opposite to the push-pull rod 212. It is understood that the buffering member 24 includes, but is not limited to, a buffering cylinder, a buffering hydraulic cylinder, etc., and the buffering member 24 can prevent the push-pull rod 212 from colliding with the mounting seat when the linear actuator 211 drives the push-pull rod 212 to rotate, that is, the buffering member 24 can play a role in limiting the rotation angle of the push-pull rod 212.

In one embodiment, as shown in fig. 2 and 3, the pull-up support 23 includes a vertical plate 231 having the hook groove 2311 and a shaft connector 232 connecting the vertical plate 231, and the support assembly further includes a sliding assembly 25, and the pull-up support 23 is slidably mounted on the support shaft 22 through the sliding assembly 25. It is understood that the shaft connecting member 232 can be a horizontal plate, the vertical plate 231 and the horizontal plate are vertically designed, and the horizontal plate is parallel to the axis of the supporting shaft 22. Specifically, when the winding shaft 1 is in a normal feeding state, and the winding shaft 1 needs to move in the axial direction thereof (because the winding shaft 1 winds a lot of coil stock, the winding shaft 1 winds the coil stock irregularly, so that the winding shaft 1 needs to move back and forth, so that the coil stock wound on the winding shaft 1 becomes orderly), the hook groove 2311 of the pull-up supporting member 23 is in a state of hooking the winding shaft 1, the winding shaft 1 drives the pull-up supporting member 23 to move back and forth, and the pull-up supporting member 23 slides back and forth on the supporting rotating shaft 22 through the sliding assembly 25, so that the stability of the pull-up supporting member 23 sliding along the supporting rotating shaft 22 is ensured.

In one embodiment, as shown in fig. 2 and 3, the sliding assembly 25 includes a sliding block 251 mounted on the rotating shaft connector 232 and a guide rail 252 mounted on the supporting rotating shaft 22, and the pull-up supporting member 23 is slidably mounted on the supporting rotating shaft 22 through the sliding block 251 and the guide rail 252. In one embodiment, the sliding block 251 is provided with a groove, and the sliding block 251 is slidably connected to the protrusion of the guide rail 252 through the groove. In another embodiment, the guide rail 252 has a groove, and the protrusion of the sliding slot is slidably connected to the guide rail 252 through the groove. Preferably, the support shaft 22 is provided with a flat section, and the guide rail 252 is installed on the flat section. In this embodiment, the sliding assembly 25 has a simple structure and is convenient to install.

In other embodiments, the sliding block 251 is mounted on the supporting shaft 22, the guiding rail 252 is mounted on the shaft connector 232, and the pull-up supporting member 23 is slidably mounted on the supporting shaft 22 through the sliding block 251 and the guiding rail 252.

In one embodiment, as shown in fig. 2 and 4, the supporting assembly further includes an elastic restoring member 26, and the elastic restoring member 26 is installed between the rotating shaft connecting member 232 and the supporting rotating shaft 22. It is understood that the elastic return member 26 includes, but is not limited to, a return spring, etc. In particular, when the winding shaft 1 is advanced, the pull-up support 23 will compress the elastic return element 26; when the winding shaft 1 moves backward, the compressed elastic reset piece 26 will drive the upward pulling support piece 23 to reset to the state of hooking the winding shaft 1, thereby ensuring the stability of hooking the winding shaft 1 by the hooking groove 2311 of the upward pulling support piece 23.

In an embodiment, as shown in fig. 2 and 4, the elastic restoring element 26 includes a mounting rod 261, a spring (not shown), a fixed block 262 mounted on the supporting spindle 22, and a sliding block 263 mounted on the spindle connector 232, wherein the mounting rod 261 is mounted on the fixed block 262, a through hole is provided on the sliding block 263, the sliding block 263 is sleeved on the mounting rod 261 through the through hole, the spring is sleeved on the mounting rod 261, and the spring is located between the fixed block and the sliding block 263. It is understood that the mounting rod 261 and the guide rail 252 are disposed in parallel, and the fixing block 262 is mounted on the plane section of the supporting rotary shaft 22. Specifically, when the winding shaft 1 drives the pull-up supporting member 23 to move forward, the rotating shaft connector 232 drives the sliding block 263 to slide on the mounting rod 261, and the sliding block 263 compresses the spring between the fixed block 262 and the fixed block; when the winding shaft 1 drives the support rotating shaft 22 to move backward, the spring in the compressed state is restored to the initial state, thereby facilitating the restoring action of the pull-up support 23.

Further, the pull-up supporting member 23 includes two of the rotating shaft connecting members 232, the supporting rotating shaft 22 is inserted between the two rotating shaft connecting members 232, and one of the sliding assemblies 25 and one of the elastic restoring members 26 are disposed between each of the rotating shaft connecting members 232 and the supporting rotating shaft 22.

In an embodiment, as shown in fig. 2, the support assembly 2 further includes a first bearing 27 sleeved on the support rotating shaft 22, and the support rotating shaft 22 is rotatably mounted on the mounting seat through the first bearing 27. It will be appreciated that the first bearing 27 ensures the stability of the rotation of the support shaft 22 on the mounting seat.

In an embodiment, as shown in fig. 1 and fig. 2, the battery winding and unwinding mechanism further includes a second bearing 3 sleeved on the winding shaft 1, and the hook groove 2311 hooks the winding shaft 1 through the second bearing 3. It can be understood that the hook groove 2311 is designed opposite to the second bearing 3, when the pull-up supporting member 23 hooks the winding shaft 1, the winding shaft 1 still needs to be in a rotating state, and the pull-up supporting member 23 is in a stationary state, that is, there is relative rotation between the pull-up supporting member 23 and the winding shaft 1; therefore, the hook groove 2311 hooks out the winding shaft 1 through the second bearing 3, the rotating stability of the winding shaft 1 is ensured, rolling friction generated when the hook groove 2311 hooks out the winding shaft 1 directly is avoided, and the service life of the battery winding and unwinding mechanism is prolonged.

The utility model discloses another example still provides a battery coiling equipment, receive unwinding mechanism including foretell battery.

The above embodiments are merely examples of the battery winding and unwinding mechanism of the present invention, and are not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery winding and unwinding mechanism is characterized by comprising a mounting seat, a winding shaft and a supporting assembly; the winding shaft comprises an installation end and a free end, and the installation end of the winding shaft is rotatably installed on the installation seat;

the supporting component comprises a driving component, a supporting rotating shaft and a pull-up supporting component provided with a hook groove; the supporting rotating shaft is rotatably arranged on the mounting seat; the pull-up supporting piece is arranged on the supporting rotating shaft; the driving assembly is installed on the mounting seat, the output end of the driving assembly is connected with the supporting rotating shaft and is used for driving the supporting rotating shaft to drive the pull-up supporting piece to rotate, so that the hook groove hooks and supports the free end of the winding shaft or unlocks the free end of the winding shaft from the hook groove.

2. The battery winding and unwinding mechanism of claim 1, wherein the driving assembly comprises a linear driving member and a push-pull rod, the linear driving member is mounted on the mounting seat, one end of the push-pull rod is rotatably connected to an output end of the linear driving member, the other end of the push-pull rod is connected to the supporting rotating shaft, and the push-pull rod is used for converting the linear motion of the linear driving member into the rotation of the supporting rotating shaft.

3. The battery winding and unwinding mechanism of claim 2, wherein the driving assembly further comprises a universal floating joint, and an output end of the linear driving member is connected to the push-pull rod through the universal floating joint; and/or

The supporting component further comprises a buffering piece arranged on the mounting seat, and the buffering piece is arranged opposite to the push-pull rod.

4. The battery winding and unwinding mechanism of claim 1, wherein the pull-up support comprises a vertical plate provided with the hook groove and a rotating shaft connector connected to the vertical plate, the support assembly further comprises a sliding assembly, and the pull-up support is slidably mounted on the supporting rotating shaft through the sliding assembly.

5. The battery reeling and unreeling mechanism of claim 4, wherein the sliding assembly comprises a sliding block mounted on the rotating shaft connecting piece and a guide rail mounted on the supporting rotating shaft, and the pull-up supporting piece is slidably mounted on the supporting rotating shaft through the sliding block and the guide rail which are slidably connected.

6. The battery winding and unwinding mechanism of claim 4, wherein the supporting assembly further comprises an elastic restoring member, and the elastic restoring member is installed between the rotating shaft connecting member and the supporting rotating shaft.

7. The battery winding and unwinding mechanism of claim 6, wherein the elastic restoring member comprises a mounting rod, a spring, a fixing block mounted on the supporting shaft, and a sliding block mounted on the shaft connecting member, the mounting rod is mounted on the fixing block, the sliding block is provided with a through hole, the sliding block is sleeved on the mounting rod through the through hole, the spring is sleeved on the mounting rod, and the spring is located between the fixing block and the sliding block.

8. The winding and unwinding mechanism for batteries according to claim 1, wherein the supporting assembly further comprises a first bearing sleeved on the supporting spindle, and the supporting spindle is rotatably mounted on the mounting seat through the first bearing.

9. The battery winding and unwinding mechanism of claim 1, further comprising a second bearing sleeved on the winding shaft, wherein the hook groove hooks the winding shaft through the second bearing.

10. A battery winding and unwinding device comprising the battery winding and unwinding mechanism of any one of claims 1 to 9.