CN210366121U

CN210366121U - Unwinding device

Info

Publication number: CN210366121U
Application number: CN201921023933.7U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Wuxi Lead Intelligent Equipment Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-04-21
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses an unwinding device. Unwinding device includes: the device comprises a base, a mounting seat, a unreeling shaft and a correction wheel, wherein a guide piece is arranged on the base; the mounting seat is arranged on the guide piece and is matched with the guide piece in a sliding manner; the unwinding shaft is rotatably arranged on the mounting seat, and when the unwinding shaft rotates relative to the mounting seat, the unwinding shaft pays off the strip-shaped material wound on the unwinding shaft; the correction wheel is provided with an annular groove, the strip material discharged by the unwinding shaft is wound by the correction wheel and then enters the discharging area, and the strip material is accommodated in the annular groove when being wound by the correction wheel; wherein, move along the guide member through the mount pad in order to carry out horizontal adjustment to the position that the correction wheel is close to the beltlike material of unreeling axle one side. The utility model discloses an above-mentioned scheme can adjust the position of banded material to improve around the ejection of compact position precision of the banded material behind the correction wheel.

Description

Unwinding device

Technical Field

The utility model relates to an automation equipment technical field, in particular to unwinding device.

Background

In the production and processing process of the battery, the tab is required to be welded to the edge of the electrode plate, and then the positive plate and the negative plate are wound to form the battery core of the battery. In the production and manufacturing process of the battery core, the tabs are generally fed around a roller after being discharged from a material roll. In utmost point ear data send process, the skew takes place for utmost point ear easily, leads to the counterpoint of utmost point ear and electrode slice to take place the skew to influence the welding quality of utmost point ear, and then influence the quality of electric core.

SUMMERY OF THE UTILITY MODEL

The utility model provides an unwinding device to utmost point ear takes place the skew easily among the solution prior art, thereby the problem of skew takes place for the counterpoint of the utmost point ear that leads to and electrode slice.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides an unwinding device, wherein, unwinding device includes:

a base provided with a guide;

the mounting seat is arranged on the guide piece and is movably matched with the guide piece;

the unwinding shaft is rotatably arranged on the mounting seat, and when the unwinding shaft rotates relative to the mounting seat, the unwinding shaft unwinds the strip-shaped material wound on the unwinding shaft;

the correcting wheel is provided with an annular groove, the strip material discharged by the unwinding shaft is wound by the correcting wheel and then enters a discharging area, and the strip material is contained in the annular groove when wound by the correcting wheel;

wherein the mounting seat moves along the guide member to adjust the position of the strip material paid out from the pay-off reel in the width direction.

In one embodiment of the method of the present invention,

the unwinding device further comprises a driving mechanism and a first detection mechanism, wherein the first detection mechanism is used for detecting the position of the strip-shaped material in the discharging area and sending a control signal when the position of the strip-shaped material in the discharging area deviates from a preset position; the power output end of the driving mechanism acts on the mounting seat, and the driving mechanism drives the mounting seat to move along the guide piece according to the control signal, so that the strip material discharged by the unwinding shaft is discharged from the preset position.

In one embodiment, actuating mechanism includes power device and coupling assembling, coupling assembling connects power device's output reaches the mount pad, coupling assembling is used for under power device's drive, drives the mount pad is followed the guide round trip movement.

In one embodiment of the method of the present invention,

the connecting assembly comprises a connecting block, a screw rod and a screw rod nut, the screw rod is arranged in parallel with the guide piece, and the screw rod is sleeved with the screw rod nut and matched with the screw rod through threads; the connecting block is connected with one end of the screw rod nut, and the other end of the connecting block is connected with the mounting seat; the power device drives the screw rod to rotate so that the screw rod nut moves along the extending direction of the screw rod, and the connecting block drives the mounting seat to move along the guide piece.

In one embodiment of the method of the present invention,

the connecting assembly comprises a rack and a gear which are meshed and matched, and the rack is arranged parallel to the guide piece;

the rack is installed on the installation seat, the power device is installed on the base and connected with the gear, and the gear is driven to rotate through the power device, so that the rack drives the installation seat to move along the extension direction of the rack; or

The power device is installed on the mounting seat, the gear is connected with a power output end of the power device, the rack is installed on the base, and the power device drives the gear to rotate, so that the gear drives the mounting seat to move along the extending direction of the rack.

In one embodiment of the method of the present invention,

the connecting assembly comprises a connecting belt and an elastic piece, and two ends of the elastic piece are respectively connected with the mounting seat and the base; one end of the connecting belt is connected with the mounting seat, the other end of the connecting belt is connected with the power output end of the power device, and the connecting belt is driven to be wound on the power output end when the power output end of the power device rotates so as to drive the mounting seat to move along the guide piece in a first movement direction;

the elastic piece is used for enabling the mounting seat to move in a direction opposite to the first moving direction when the power output end of the power device discharges the connecting belt wound on the power output end of the power device.

In one embodiment, the correction wheel is rotatably mounted on the mount.

In one embodiment, unwinding device still includes barrier paper recovery mechanism, barrier paper sets up two-layerly between the beltlike material in order to two-layerly the beltlike material keeps apart just the barrier paper is along with the beltlike material is synchronous is followed the release shaft is emitted, barrier paper recovery mechanism includes the rolling axle, the rolling axle is rotatable to be installed on the mount pad, the one end of barrier paper is connected the rolling axle, the barrier paper passes through the rolling axle rotates and convolutes on the rolling axle.

In one embodiment, the strip material is a tab, the unwinding device further comprises a second detection mechanism, and the second detection mechanism comprises a first detection device and/or a second detection device;

the first detection device is mounted on the mounting seat and used for detecting the tab wound by the correction wheel so as to distinguish the positive and negative properties of the tab;

the second detection device is installed on the installation seat and used for detecting the pole lug which passes through the correction wheel in a winding mode so as to detect whether the pole lug is damaged or not.

In one embodiment, the unwinding device further comprises a shaping assembly, the shaping assembly is used for shaping the strip-shaped material wound around the correcting wheel, the shaping assembly comprises a plurality of pressing rollers arranged at intervals, and the plurality of pressing rollers are respectively used for abutting against two opposite sides of the strip-shaped material so as to extrude and shape the strip-shaped material.

Be different from prior art, the utility model provides an unwinding device. Through all setting up unwinding shaft and the correction wheel with unwinding device on the mount pad that can move relative to the base, through making the relative base motion of mount pad to can adjust the position of the strip material around the correction wheel, thereby make the strip material carry out the ejection of compact with the position of predetermineeing in ejection of compact region, counterpoint precision when consequently can improve the ejection of compact of strip material.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic structural diagram of an embodiment of an unwinding device provided in the present invention;

FIG. 2 is a schematic structural diagram of a right side view of the unwinding device shown in FIG. 1;

fig. 3 is a schematic structural diagram of another arrangement of the connection assembly provided by the present invention;

fig. 4 is a schematic structural diagram of another arrangement of the connection assembly according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-2, fig. 1 is a schematic structural diagram of an embodiment of an unwinding device according to the present invention, and fig. 2 is a schematic structural diagram of a right side view of the unwinding device shown in fig. 1.

The unwinding device 10 includes a base 100, a mounting base 200, an unwinding shaft 300, and a correction wheel 400. Wherein, the base 100 is provided with the guide 110, and the mounting seat 200 is provided on the guide 110 to be matched with the guide 110 in a sliding manner, that is, the mounting seat 200 can slide back and forth along the guide 110 with the guide 110 as a track.

Specifically, the guide 110 may be a slide rail, and the mounting seat 200 may be supported on the slide rail to be slidably matched with the slide rail; or in other embodiments, the guide element 110 may be a guide rod, and the mounting base 200 may be provided with a sleeve matching with the guide rod, and the mounting base 200 may be configured with the sleeve on the guide rod, so that the mounting base 200 may move back and forth along the axial direction of the guide rod.

Wherein, the unreeling shaft 300 and the correction wheel 400 are both mounted on the mount 200.

The unreeling shaft 300 is rotatably mounted on the mounting base 200, and the strip material is wound on the unreeling shaft 300, and the unreeling shaft 300 rotates 360 degrees relative to the mounting base 200, so that the strip material wound thereon can be paid out for feeding. The unreeling shaft 300 can be connected to a motor, and the motor drives the unreeling shaft 300 to rotate, so as to control the unreeling shaft 300 to unreel.

The correction wheel 400 is also rotatably mounted on the mount 200, wherein the axis of the correction wheel 400 is disposed in parallel with the axis of the unreeling shaft 300. The correction wheel 400 is provided with an annular groove 410, and the belt-shaped material paid out by the unreeling shaft 300 is accommodated in the annular groove 410 when being wound around the correction wheel 400, so that the annular groove 410 can play a certain limiting role on the belt-shaped material.

The strip material discharged from the unwinding shaft 300 can enter the discharging area 101 after passing through the correction wheel 400, and is discharged at a preset position in the discharging area 101, so as to facilitate subsequent processing.

Therefore, in this embodiment, the installation base 200 slides along the guide 110, so that the unwinding shaft 300 and the correction wheel 400 on the installation base 200 move synchronously with the installation base 200, that is, the position of the strip-shaped material between the unwinding shaft 300 and the correction wheel 400 can be adjusted, and therefore, the strip-shaped material wound around the correction wheel 400 can be discharged at a preset position, and the discharging alignment accuracy of the strip-shaped material is improved.

Further, in this embodiment, the extending direction of the guide 110 is parallel to the axis of the correction wheel 400, that is, the mounting seat 200 moves in a direction parallel to the axis of the correction wheel 400, so that the unwinding device 10 can adjust the position of the strip in the width direction, thereby preventing the strip from shifting in the width direction during the transportation process.

The belt-shaped material conveying device can correct the position of a belt-shaped material in the conveying process in real time by arranging the driving mechanism and the detection mechanism.

Specifically, the unwinding device 10 further includes a driving mechanism 500 and a first detection mechanism 600, where the first detection mechanism 600 is configured to detect a position of the strip-shaped material in the discharging area 101, and send a control signal when the position of the strip-shaped material in the discharging area 101 deviates from a preset position; the power output end of the driving mechanism 600 acts on the mounting base 200, and the driving mechanism 600 drives the mounting base 200 to move along the guide 110 according to the control signal, so that the strip material discharged by the discharging reel 300 can be discharged from the preset position, and the discharging position precision of the strip material in the discharging area 101 can be ensured in real time.

The first detecting mechanism 600 may be a photoelectric sensor, the first detecting mechanism 600 may include at least one pair of photoelectric sensors, and the two photoelectric sensors may be disposed on two opposite sides of the strip material in the discharging area 101, so as to detect the position of the strip material. Here, the first detection mechanism 600 may be mounted on the base 100.

The first detecting mechanism 600 may be further connected to a controller (not shown), when the first detecting mechanism 600 detects that the strip material in the discharging region 101 deviates from the preset position, the first detecting mechanism 600 sends a control signal to the controller, and the driving mechanism 500 may control the mounting base 200 to move along the guide 110 according to the control signal, so as to adjust the positions of the unwinding shaft 300 and the correcting wheel 400 on the mounting base 200 relative to the base 100, so as to adjust the position of the strip material, and further enable the strip material subsequently entering the discharging region 101 to be discharged at the preset position as described above, thereby ensuring the precision of the discharging position of the strip material.

In this embodiment, the drive mechanism 500 includes a power device 510 and a connection assembly. The connecting assembly is respectively connected to the power output end of the power device 510 and the mounting base 200, and can drive the mounting base 200 to move along the guide 110 under the driving of the power device 510.

Wherein, the connecting assembly comprises a connecting block 520, a lead screw 530 and a lead screw nut 540. The power output end of the power device 510 is connected with the screw rod 530 and is used for driving the screw rod 530 to rotate, and the screw rod nut 540 is sleeved on the screw rod 530 and is in threaded matching with the screw rod 530; one end of the connecting block 520 is connected with the lead screw nut 540, and the other end is connected with the mounting seat 200. In this embodiment, the screw rod 530 is rotatably installed on the base 100, the power device 510 can drive the screw rod 530 to rotate 360 degrees relative to the base 100, and the screw rod nut 540 moves along the extending direction of the screw rod 530 when rotating, so that the screw rod nut 540 can drive the connecting block 520 to move along the extending direction of the screw rod 530, and further the connecting block 520 drives the mounting base 200 to move along the extending direction of the screw rod 530.

Wherein, by controlling the steering of the screw rod 530, the mounting base 200 can be moved back and forth along the extending direction of the screw rod 530.

In this embodiment, both ends of the screw rod 530 can be disposed on the base 100 through the screw rod mounting seats 531, wherein the two screw rod mounting seats 531 are respectively sleeved at both ends of the screw rod 530 and rotatably matched with the screw rod 530. One end of the screw 530 close to the power device 510 can penetrate through the mounting base 531 and then be connected with the power output end of the power device 510 through a coupling, so that the screw 530 can rotate 360 degrees relative to the screw mounting base 531 by taking the axis of the screw 530 as a rotation center under the driving of the power device 510.

In other embodiments, the linkage assembly may include a mating meshing gear and rack.

Specifically, please refer to fig. 3, fig. 3 is a schematic structural diagram of another arrangement of the connection assembly according to the present invention.

The rack 551 may be disposed parallel to the guide 110. Wherein, the rack 551 can be installed on the installation base 200; the power unit 510 is mounted on the base 100, wherein the gear 552 can be connected to the power output end of the power unit 510 and can rotate 360 ° under the driving of the power unit 510. Therefore, when the gear 552 rotates, the rack 551 engaged with the gear 552 can move along the extending direction of the rack 551, so that the mount 200 moves along the guide 110 relative to the base 100.

Or in other embodiments, the power device 510 may be mounted on the mounting base 200, the rack may be mounted on the base 100, and the gear may also be connected to the power output end of the power device 510 and meshed with the rack; the gear can be driven to rotate through the power device 510, and then the gear can move along the extending direction of the rack; the mounting base 200 can be moved along the guide 110 relative to the base 100 by the gear.

Further, please refer to fig. 4, fig. 4 is a schematic structural diagram of another arrangement of the connection assembly according to the present invention.

The connecting component can also comprise an elastic component 561 and a connecting band 562; wherein, one end of the connection belt 562 is connected to the mounting base 200, and the other end thereof can be connected to the power output end of the power device 510 and can be wound on the power output end along with the power output end of the power device 510, so that one end of the connection belt 562 can be wound by the power device 510, thereby enabling the mounting base 200 to move along the guide 110 in the first movement direction.

The elastic element 561 is used to drive the mounting base 200 to move along the guiding element 110 in a direction opposite to the first moving direction. Specifically, one end of the elastic element 561 may be connected to the mounting base 200, and the other end may be connected to the base 100; when the power device 510 winds one end of the connecting belt 562, so as to drive the mounting seat 200 to move, the elastic member 561 can be stretched or compressed; when the power unit 510 releases the connection strap 562 wound thereon, the mounting base 200 can be moved along the guide member 110 in a direction opposite to the first movement direction by the elastic member 561.

In this embodiment, the connecting block 520 is connected to the mounting base 200, so that the mounting base 200 can be driven to move synchronously by the movement of the connecting block 520, wherein in order to facilitate installation and disassembly maintenance, the driving block 210 can be further arranged on the mounting base 200, the driving block 210 can be fixedly arranged on the mounting base 200, and the connecting block 520 can be detachably and fixedly connected to the driving block 210, so that the connecting block 520 can be ensured to move synchronously with the mounting base 200.

In this embodiment, a sliding member 220 is further disposed on a side of the bottom of the mounting base 200 close to the base 100, wherein when the guiding member 110 is a guide rail, a sliding groove is disposed on the sliding member 220, an opening of the sliding groove faces the guiding member 110, and the sliding member 220 is sleeved on the guiding member 110 through the sliding groove and is slidably matched with the guiding member 110, that is, in this embodiment, the mounting base 200 is supported on the guiding member 110 through the sliding member 220. When the guide member 110 is a guide rod, the sliding member 220 may be a sleeve matched with the guide rod, the guide member 110 is disposed through the sliding member 220, and the guide member 110 may be slidably matched with the sliding member 220 in the axial direction thereof.

In order to ensure the stability of the support of the mounting base 200, a plurality of sliding members 220 may be disposed at the bottom of the mounting base 200, and each sliding member 220 is sleeved on the guide member 110 and slidably matched with the guide member 110; furthermore, a plurality of parallel guide members 110 may be further disposed on the base, and a plurality of rows of sliding members 220 may also be disposed at the bottom of the mounting seat 200, where the number of the sliding members 220 in each row of the sliding members 220 may be at least two, and each sliding member 220 in each row of the sliding members 220 is sleeved on the same guide member 110 and is slidably matched with the guide member 110, so that the supporting stability of the mounting seat 200 may be further improved.

The strip material in this embodiment may be used to manufacture a tab of a battery.

The tab is generally made of a metal material, so the strip may be a metal strip. To protect the metal strips when they are wound on the unwinding shaft 300, a layer of release paper may be further disposed between two adjacent metal strips. Specifically, a layer of isolation paper tape may be attached to one side of the metal strip, so that the metal strip and the isolation paper tape may be wound onto the unwinding shaft 300 synchronously.

In this embodiment, when the strip-shaped material is a tab, and when the tab is discharged, the release paper is also discharged, so that the release paper recovery mechanism can be further provided to recover the release paper discharged from the unwinding shaft 300.

Specifically, the unwinding device 10 may further include an isolation paper recycling mechanism 700, wherein the isolation paper recycling mechanism 700 may include a winding shaft 710, wherein the winding shaft 710 is also mounted on the mounting seat 200, wherein the winding shaft 710 is rotatably mounted on the mounting seat 200, and an axis of the winding shaft 710 may be parallel to an axis of the unwinding shaft 300.

In this embodiment, the release paper 701 is paid out while the ribbon material is paid out by the paying-out reel 300, one end of the release paper 701 may be connected to the take-up reel 710, and the release paper 701 may be recovered by rotating the take-up reel 710 to thereby wind the release paper onto the take-up reel 710. The release paper recycling mechanism 700 may further include a motor 720, and the motor 720 drives the winding shaft 710 to rotate, so as to recycle the release paper 701.

Further, for convenience of installation and adjustment, a buffer mechanism may be disposed near the unreeling shaft 300. When the web discharged from the unwinding shaft 300 further includes the release paper 701, the buffering mechanism may include a first buffering mechanism for buffering the web and a second buffering mechanism for buffering the release paper 701.

After the strip material paid out by the unreeling shaft 300 passes through the first buffer mechanism, the strip material continues to pass through the correction wheel 400; the release paper 701 discharged from the unwinding shaft 300 is wound around the second buffer mechanism and then connected to the winding shaft 710.

The first buffer mechanism and the second buffer mechanism can respectively comprise a buffer guide 801, a buffer sliding block 802, a buffer roller 803 and two rollers 804, wherein the two rollers 804 and the buffer roller 803 are distributed in a triangular mode, and the buffer roller 803 and the axes of the two rollers 804 are arranged in parallel. The buffer roller 803 is rotatably arranged on a buffer sliding block 802, and the buffer sliding block 802 is arranged on the buffer guide 801 and is matched with the buffer guide 801 in a sliding manner; wherein, the strip material or the isolation paper 701 passes through one of the rollers 804, the buffer roller 803 and the other roller 804 in sequence. Further, the buffer guiding element 801 may be disposed along a vertical direction, and the buffer sliding block 802 may further be disposed with a weight block, so that the strip material passing through the first buffer mechanism and the second buffer mechanism is in a tensioned state.

Further, in this embodiment, when the strip material paid out by the pay-off reel 300 is used for manufacturing a tab of a battery, the pay-off device 10 may further include a second detecting mechanism 910 and a shaping assembly 920.

The second detecting mechanism 910 includes a first detecting device 911 and a second detecting device 912, both of the first detecting device 911 and the second detecting device 912 can be mounted on the mounting base 200, wherein the first detecting device 911 and the second detecting device 912 can detect the strip material passing around the correcting wheel 400.

The first detection device 911 may identify the strip material to confirm that the tab manufactured from the strip material is the positive tab or the negative tab. In the field of battery production, the positive tab is generally made of an aluminum material, and the negative tab is generally made of a nickel material, so that the colors of the positive tab and the negative tab are generally different, and therefore, the first detection device 911 can identify the positive and negative properties of the tab made of the strip material by identifying the color of the strip material.

The second detecting device 912 is used for detecting the strip material wound around the correcting wheel 400 to detect whether the strip material has damage. And can control the corresponding cutting device to remove the damaged part when the strip material is detected to have the damage.

The first detecting device 911 and the second detecting device 912 may be photosensors.

The shaping assembly 920 is also mounted on the mounting base 200, and the shaping assembly 920 is mounted on the calibration wheel 400 near the discharging area 101, that is, the strip material passing through the calibration wheel 400 passes through the shaping assembly 920 and enters the discharging area 101.

In this embodiment, plastic subassembly 920 includes the compression roller 921 that a plurality of intervals set up, and a plurality of compression rollers 921 are used for supporting the relative both sides of pressing the beltlike material respectively to carry out extrusion plastic to the beltlike material through plastic subassembly 920, thereby make this beltlike material surfacing.

In this embodiment, the strip material enters into ejection of compact region 101 after the extrusion plastic of plastic subassembly 920, and the strip material can enter into subsequent processing with predetermined ejection of compact position after entering ejection of compact region 101.

To sum up, the utility model provides an unwinding device. Through all setting up unwinding shaft and the correction wheel with unwinding device on the mount pad that can move relative to the base, through making the relative base motion of mount pad to can adjust the position of the strip material around the correction wheel, thereby make the strip material carry out the ejection of compact with the position of predetermineeing in ejection of compact region, counterpoint precision when consequently can improve the ejection of compact of strip material.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. The utility model provides an unwinding device, its characterized in that, unwinding device includes:

a base provided with a guide;

2. Unwinding device according to claim 1,

3. The unwinding device as claimed in claim 2, wherein the driving mechanism includes a power device and a connecting assembly, the connecting assembly connects an output end of the power device and the mounting base, and the connecting assembly is configured to drive the mounting base to move back and forth along the guide under the driving of the power device.

4. Unwinding device according to claim 3,

5. Unwinding device according to claim 3,

6. Unwinding device according to claim 3,

7. The unwinding device as claimed in any one of claims 1-6, wherein the correction wheel is rotatably mounted on the mounting base.

8. The unwinding device as claimed in claim 7, further comprising a separator paper recycling mechanism, wherein the separator paper is disposed between the two layers of the strip materials to separate the two layers of the strip materials and the separator paper is synchronously paid out from the unwinding shaft along with the strip materials, the separator paper recycling mechanism comprises a winding shaft rotatably mounted on the mounting seat, one end of the separator paper is connected to the winding shaft, and the separator paper is wound on the winding shaft through rotation of the winding shaft.

9. The unwinding device of claim 7, wherein the strip material is a tab, the unwinding device further comprises a second detection mechanism, and the second detection mechanism comprises a first detection device and/or a second detection device;

10. The unwinding device as claimed in claim 7, further comprising a shaping assembly, wherein the shaping assembly is configured to shape the strip material wound around the correction wheel, the shaping assembly includes a plurality of pressing rollers disposed at intervals, and the plurality of pressing rollers are respectively configured to abut against two opposite sides of the strip material to extrude and shape the strip material.