CN220283086U - Winding and unwinding device and electrode foil processing system - Google Patents

Abstract

The application relates to a winding and unwinding device and an electrode foil processing system, wherein a plurality of winding and unwinding pieces are used for outputting a base material belt or winding the base material belt; the combining and releasing piece is used for outputting the composite material belt or rolling the composite material belt; when the winding and unwinding device is in the first state, each winding and unwinding piece outputs a basic material belt which is mutually attached to form a composite material belt and is wound by the combining and unwinding piece; when the winding and unwinding device is in the second state, the composite material strips output by the winding and unwinding parts are separated to form a plurality of base material strips, and the base material strips are wound by the winding and unwinding parts. Thus, the two processes of coiling and uncoiling the coated foil and the optical foil to form the coiled foil coil and uncoiling the formed coiled foil coil can be completed through one coiling and uncoiling device, and compared with the traditional mode of needing a plurality of foil uncoiling machines and a plurality of foil coiling machines, the operation steps can be greatly reduced through the coiling and uncoiling equipment, and meanwhile, occupied field area and required equipment cost are reduced.

Description

Winding and unwinding device and electrode foil processing system

Technical Field

The application relates to the technical field of electrode foils, in particular to a winding and unwinding device and an electrode foil processing system.

Background

In the preparation process of the electrode foil, the surface of the optical foil is required to be uniformly coated with slurry with a certain thickness, the slurry is dried and then is collected to form a coated foil, the coated foil is sintered at a certain temperature, the sintered coated foil is rolled up and then is subjected to the next formation process, and the complete electrode foil product can be formed after the formation process.

Due to the special reasons of equipment and technology, in the sintering technology of the coated foil, the aluminum particles in the sizing agent of the coated foil can be partially melted, so that the coated foil of the adjacent layer is adhered at the edge, and in the subsequent forming technology process, the adhered coated foil can be torn, so that the preparation cannot be normally carried out.

For this reason, in the sintering process of the coated foil, the coated foil and the photo-foil roll (uncoated aluminum foil subjected to water boiling treatment) need to be rolled up to form a rolled foil roll, so that the tearing of the adjacent coated foil caused by adhesion during the sintering process can be avoided. After the sintering process, the formed foil coil is further required to be separated, the coated foil is separated from the optical foil coil, the separated coated foil is continued to be subjected to the next formation process, and the optical foil coil can be recycled.

However, in the prior art, two processes of winding coated foil and photo-foil to form a foil-covered roll and separating the formed foil-covered roll need a plurality of devices, including a plurality of foil-unreeling machines and a plurality of foil-reeling machines, which not only greatly increases the operation steps, but also increases the occupied area and the equipment cost.

Disclosure of Invention

In view of this, it is necessary to provide a winding and unwinding device and an electrode foil processing system for solving the problem that a plurality of devices are required for winding and unwinding a coated foil and an optical foil to form a wound foil and for separating the wound foil.

A winding and unwinding device comprising:

the winding and unwinding pieces are used for outputting a base material belt or winding the base material belt;

the combining and releasing piece is used for outputting a composite material belt or winding the composite material belt;

the winding and unwinding device is provided with a first state and a second state, and when the winding and unwinding device is in the first state, each winding and unwinding piece outputs the base material belt to be mutually attached to form the composite material belt and is wound by the winding and unwinding piece;

when the winding and unwinding device is in the second state, the composite material strips are output by the winding and unwinding piece, separated to form a plurality of base material strips, and wound by the winding and unwinding pieces.

In one embodiment, each of the winding and unwinding members is rotatable about its own axis, and when the winding and unwinding device is in the first state, the winding and unwinding member is rotated about its own axis in a first direction, and when the winding and unwinding device is in the second state, the winding and unwinding member is rotated about its own axis in a second direction, the first direction being opposite to the second direction.

In one embodiment, each of the closing and opening members is rotatable around its own axis, when the winding and unwinding device is in the first state, the closing and opening member is rotated around its own axis in a second direction, and when the winding and unwinding device is in the second state, the closing and opening member is rotated around its own axis in a first direction, the first direction being opposite to the second direction.

In one embodiment, the winding and unwinding device further includes a plurality of first adjustment rollers, each of the first adjustment rollers corresponds to one of the base material belts, each of the first adjustment rollers is movable relative to the corresponding base material belt, and during the movement, a circumferential side of each of the first adjustment rollers is capable of contacting the corresponding base material belt.

In one embodiment, the winding and unwinding device further comprises a second adjusting roller, wherein the second adjusting roller is movable relative to the composite material belt, and the circumferential side surface of the second adjusting roller can be in contact with the composite material belt in the moving process.

In one embodiment, the winding and unwinding device further includes a composite member, wherein the composite member is formed with a bonding channel, and when the winding and unwinding device is in the first state, the base material strips output by each winding and unwinding device pass through the bonding channel and are bonded to each other to form the composite material strips.

In one embodiment, the composite member includes two composite rollers, and the fitting channel is formed between the two composite rollers.

In one embodiment, the winding and unwinding device further comprises a mounting frame, and each winding and unwinding member is movably mounted on the mounting frame;

the winding and unwinding device further comprises a plurality of first deviation rectifying pieces which are correspondingly connected with the winding and unwinding pieces in a communication mode, the base material strips output or wound by the winding and unwinding pieces pass through the corresponding first deviation rectifying pieces, and the positions of the corresponding installation racks are adjusted according to the position signals of the base material strips monitored by the winding and unwinding pieces.

In one embodiment, the winding and unwinding device further comprises a mounting frame, and the winding and unwinding members are movably mounted on the mounting frame;

the winding and unwinding device further comprises a second deviation rectifying piece in communication connection with the winding and unwinding piece, the composite material belt output or wound by the winding and unwinding piece passes through the second deviation rectifying piece, and the winding and unwinding piece monitors the position signal of the composite material belt according to the second deviation rectifying piece, and adjusts the position corresponding to the mounting frame.

An electrode foil processing system comprising a wind-up and unwind device as claimed in any of the preceding claims.

According to the winding and unwinding device, when a plurality of base material belts are required to be mutually attached to form the composite material belts, the winding and unwinding device can be controlled to be in the first state, otherwise, when the composite material belts are required to be separated to form the plurality of base material belts, the winding and unwinding device can be controlled to be in the second state, so that the two processes of winding and unwinding the coated foil and the optical foil to form the laminated foil roll and separating the formed laminated foil roll can be completed through one winding and unwinding device, compared with the traditional mode of requiring a plurality of foil winding and unwinding machines and a plurality of foil winding machines, the operation steps can be greatly reduced through the winding and unwinding equipment, and meanwhile, the occupied field area and the required equipment cost are reduced.

Drawings

Fig. 1 is a schematic diagram of a conventional method for winding a coated foil and a photo-foil to form a rolled foil.

Fig. 2 is a schematic diagram of a conventional method for forming coated foil and photo-foil by separating the foil-folding rolls.

Fig. 3 is a schematic structural diagram of a winding and unwinding device according to some embodiments of the present application.

Reference numerals illustrate:

a foil dispenser 100; a foil winder 200;

a retractable member 10; a base web 11; a first steering roller 12;

a closing and releasing member 20; a composite tape 21; a second steering roller 22;

a composite member 30; a fitting passage 31; a composite roller 32;

a mounting frame 40; a first deviation rectifying member 41; and a second deviation correcting member 42.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1, fig. 1 is a schematic diagram illustrating a manner in which a coated foil is rolled with an optical foil to form a rolled foil in a conventional manner, in which two foil discharging machines 100 and a foil collecting machine 200 are required, the two foil discharging machines 100 output the coated foil and the optical foil respectively, the coated foil is rolled with the optical foil by the foil collecting machine 200, and the coated foil and the optical foil are attached to each other to form the rolled foil in the rolling process.

Referring further to fig. 2, fig. 2 is a schematic diagram of a manner in which the foil-closing rolls are separated to form coated foil and optical foil rolls in a conventional manner, in which one foil-unreeling machine 100 is required, and two foil-reeling machines 200 are required, the foil-unreeling machine 100 is used for outputting the foil-closing rolls, and the two foil-reeling rolls respectively receive the coated foil and the optical foil rolls formed by separating the foil-closing rolls.

As can be seen from the above, in the conventional manner, at least three foil discharging machines 100 and three foil collecting machines 200 are required to complete the two steps of winding the coated foil and the optical foil to form the laminated foil roll and separating the laminated foil roll, so that two production lines are formed, which not only results in a great increase in the operation steps, but also in the production area occupied by the plurality of foil discharging machines 100 and the plurality of foil collecting machines 200, and in the required equipment cost.

For this purpose, referring to fig. 3, the winding and unwinding device provided in an embodiment of the present application includes a winding and unwinding member 20 and a plurality of winding and unwinding members 10.

Each take-up and pay-out member 10 is for outputting the base material tape 11, and for winding up the base material tape 11, and the take-up and pay-out member 20 is for outputting the composite material tape 21, and for winding up the composite material tape 21. Wherein, the winding and unwinding device has a first state and a second state, when the winding and unwinding device is in the first state, each winding and unwinding member 10 outputs the base material belt 11 to be mutually attached to form a composite material belt 21, and is wound by the combining and unwinding member 20. When the winding and unwinding device is in the second state, the composite material strips 21 outputted by the winding and unwinding members 20 are separated to form a plurality of base material strips 11, and are wound by the respective winding and unwinding members 10.

In this way, when the plurality of base material belts 11 are required to be mutually attached to form the composite material belt 21, the winding and unwinding device can be controlled to be in the first state, otherwise, when the composite material belts 11 are required to be separated to form the plurality of base material belts 11, the winding and unwinding device can be controlled to be in the second state, so that the two processes of winding and coiling the coated foil and the optical foil to form the foil-closing coil and separating the formed foil-closing coil can be completed through one winding and unwinding device, compared with the traditional mode of needing a plurality of foil-releasing machines 100 and a plurality of foil-rewinding machines 200, the operation steps can be greatly reduced through the winding and unwinding equipment, and meanwhile, the occupied field area and the required equipment cost are reduced.

Alternatively, the base material belt 11 output by one of the winding and unwinding members 10 is a coated foil, the base material belt 11 output by the other winding and unwinding member 10 is a photo-foil roll, and the composite material belt 21 is a foil-closing roll formed by attaching the coated foil to the photo-foil roll.

In some embodiments of the present application, each winding and unwinding member 10 is rotatable about its own axis, when the winding and unwinding device is in the first state, the winding and unwinding member 10 is rotatable about its own axis in a first direction, and when the winding and unwinding device is in the second state, the winding and unwinding member 10 is rotatable about its own axis in a second direction, the first direction being opposite to the second direction. Taking the winding and unwinding device in the embodiment of fig. 3 as an example, the first direction is clockwise, that is, each winding and unwinding member 10 rotates clockwise to output the base material tape 11 wound in the winding and unwinding member 10 to the combining and unwinding member 20, and the second direction is counterclockwise, when each winding and unwinding member 10 rotates counterclockwise, each winding and unwinding member 10 is in the second state to wind the multiple base material tapes 11 formed by separating the composite material tapes 21 in the combining and unwinding member 20 respectively.

In some embodiments of the present application, each of the closing and releasing members 20 is rotatable around its own axis, when the winding and unwinding device is in the first state, the closing and releasing members 20 rotate around its own axis in the second direction, and when the winding and unwinding device is in the second state, the closing and releasing members 20 rotate around its own axis in the first direction, and the first direction is opposite to the second direction. Taking the winding and unwinding device in the embodiment of fig. 3 as an example, the second direction is a counterclockwise direction, when the winding and unwinding members 20 rotate counterclockwise, the base material strips 11 output by each winding and unwinding member 10 are attached to each other to form a composite material strip 21, and after the composite material strip 21 is wound by the winding and unwinding member 20 rotating counterclockwise to form a material roll. While the first direction is clockwise, when the unreeling and unreeling rotate clockwise, the unreeling and unreeling can output the composite material strips 21, so that the composite material strips 21 can be separated to form a plurality of base material strips 11 and wound by a plurality of reeling and unreeling pieces 10.

It should be noted that, in other embodiments, the direction of rotation of the winding and unwinding member 10 and the direction of feeding of the winding and unwinding member 20 may be changed, but the direction of discharging and the direction of feeding of the winding and unwinding member 10 and the direction of feeding of the winding and unwinding member 20 may be changed, and the winding and unwinding device may be switched to be in the first state or the second state.

In the embodiment of the present application, the winding and unwinding device further includes a plurality of first adjustment rollers 12, each first adjustment roller 12 corresponds to one of the base material belts 11, each first adjustment roller 12 is movable relative to the corresponding base material belt 11, and in the moving process, the circumferential side surface of each first adjustment roller 12 can contact with the corresponding base material belt 11. In this way, the expansion degree of each base material belt 11 is adjusted through each first adjusting roller 12, so that the base material belts 11 can be more compact and tidy when being attached, and the occurrence probability of phenomena such as edge bulging, loose layer, pad cracking and the like is avoided.

Taking the winding and unwinding device in the embodiment of fig. 3 as an example, in this embodiment, the winding and unwinding device includes two winding and unwinding members 10 and two first adjustment rollers 12, where the top of the base material belt 11 output or wound by one winding and unwinding member 10 is abutted against one of the first adjustment rollers 12, and the first adjustment rollers 12 can approach the base material belt 11 by moving along the left side, moving downward, or moving downward left, etc., so that the first adjustment rollers 12 compress the base material belt 11, so that the tension of the base material is greater, and thus the fitting with the other base material belt 11 is tighter.

Similarly, the bottom of the base material belt 11 that is output or wound by the other winding and unwinding member 10 is abutted against the other first adjusting roller 12, and the first adjusting roller 12 can be moved to the left, upward or upward left to approach the base material belt 11, so as to press the base material belt 11.

In the embodiment of the present application, the winding and unwinding device further includes a second adjustment roller 22, where the second adjustment roller 22 is movable relative to the base material belt 11, and during the movement, a circumferential side surface of the second adjustment roller 22 can contact the base material belt 11. So that the tension of the base material tape 11 is adjusted by the second adjusting roller 22 to make the effect of the pay-off and take-up member 20 to take up the composite material tape 21 better.

In the embodiment of the present application, the winding and unwinding device further includes a composite member 30, where the composite member 30 is formed with a laminating channel 31, and when the winding and unwinding device is in the first state, the base material strips 11 output by each winding and unwinding device 10 pass through the laminating channel 31 and are laminated with each other to form the composite material strip 21. In the practical use process, the height of the laminating channel 31 is smaller, and after a plurality of base material strips 11 enter the laminating channel 31, the base material strips 11 are extruded by the inner wall of the laminating channel 31, so that a plurality of base material strips 11 are mutually laminated, and finally the composite material strips 21 are formed.

In some embodiments, the composite 30 includes two composite rollers 32 with a laminating channel 31 formed between the two composite rollers 32, i.e., the plurality of base webs 11 pass between the two composite rollers 32 and are pressed by the two composite rollers 32 to cause the plurality of base webs 11 to laminate with one another to form the composite web 21.

When the winding and unwinding device is in the second state, the laminating channel 31 of the composite member 30 plays a role in guiding the composite material belt 21 output by the winding and unwinding member 20, after the composite material belt 21 leaves the laminating channel 31, the composite material belt 21 can be separated into a plurality of base material belts 11 through a manual mode, and when the plurality of base material belts 11 are wound on the plurality of winding and unwinding members 10, the following composite material belts 21 can be automatically separated into the plurality of base material belts 11 through pulling of the plurality of winding and unwinding members 10.

In some embodiments of the present application, the winding and unwinding device further includes a mounting frame 40, and each winding and unwinding member 10 is movably mounted on the mounting frame 40. The winding and unwinding device further comprises a plurality of first deviation rectifying pieces 41 which are correspondingly connected with the plurality of winding and unwinding pieces 10 in a communication mode, the base material belt 11 output or wound by each winding and unwinding piece 10 passes through the corresponding first deviation rectifying piece 41, each winding and unwinding piece 10 monitors the position signal of the base material belt 11 according to the first deviation rectifying piece 41, and the position of the corresponding mounting frame 40 is adjusted, so that the base material belt 11 output or wound by the winding and unwinding piece 10 is kept in a certain position range, the effect of winding and unwinding the base material belt 11 by the winding and unwinding piece 10 is better, and the laminating effect of the plurality of base material belts 11 is better.

Optionally, the first deviation rectifying element 41 includes two monitoring elements arranged at intervals, a plurality of light beams are formed between the two monitoring elements, the base material belt 11 passes through between the two monitoring elements and shields part of the light beams, the first deviation rectifying element 41 can obtain the position of the base material belt 11 relative to the monitoring elements according to the light beams passed by the base material belt 11, further obtain a position signal of the composite material belt 21, and finally send the position signal to the corresponding winding and unwinding elements 10.

Based on the same principle, in some embodiments of the present application, the closing and releasing members 20 are movably mounted on the mounting frame 40, the winding and releasing device further includes a second deviation rectifying member 42 in communication connection with the closing and releasing members 20, the composite material belt 21 outputted or wound by the closing and releasing members 20 passes through the second deviation rectifying member 42, and the closing and releasing members 20 monitor the position signal of the composite material belt 21 according to the second deviation rectifying member 42, and adjust the position of the corresponding mounting frame 40, so that the base material belt 11 outputted or wound by the closing and releasing members 10 is kept in a certain position range, and the effect of winding the base material belt 11 by the closing and releasing members 10 is better.

The following describes the working procedure of the winding and unwinding device in the embodiment of fig. 3:

when each winding and unwinding member 10 rotates clockwise and each unwinding member 20 rotates counterclockwise, the winding and unwinding device is in the first state, and after the base material strips 11 wound in each winding and unwinding member 10 are pressed and attached by the composite member 30, the composite material strips 21 are formed and wound by the winding and unwinding member 20.

When each of the winding and unwinding members rotates counterclockwise and the winding and unwinding member 20 rotates clockwise, the winding and unwinding device is in the second state, and the composite material strips 21 output by the winding and unwinding member 20 are separated to form a plurality of base material strips 11 and wound by the winding and unwinding members 10.

The embodiment of the application further provides an electrode foil processing system, which comprises the winding and unwinding device in any embodiment, wherein the base material belt 11 output by one winding and unwinding piece 10 is coated foil, the base material belt 11 output by the other winding and unwinding piece 10 is optical foil roll, and the composite material belt 21 is a foil-closing roll formed by laminating the coated foil and the optical foil roll. Thus, by the winding and unwinding device, the two processes of winding and unwinding the coated foil and the optical foil to form the foil-covered roll and separating the formed foil-covered roll can be completed, and compared with the traditional mode of needing a plurality of foil unwinding machines 100 and a plurality of foil winding machines 200, the operation steps can be greatly reduced by the winding and unwinding equipment, and meanwhile, the occupied field area and the required equipment cost are reduced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. A winding and unwinding device, characterized in that it comprises:

a plurality of winding and unwinding members (10), each winding and unwinding member (10) is used for outputting a base material belt (11) or winding up the base material belt (11);

a combining and releasing piece (20) for outputting a composite material belt (21) or winding the composite material belt (21);

when the winding and unwinding device is in the first state, each winding and unwinding piece (10) outputs the basic material belt (11) to be mutually attached to form the composite material belt (21) and is wound by the winding and unwinding piece (20);

when the winding and unwinding device is in the second state, the composite material strips (21) are output by the winding and unwinding piece (20) to be separated to form a plurality of base material strips (11), and the base material strips are wound by the winding and unwinding pieces (10).

2. A reel-up according to claim 1, wherein each of said reels (10) is rotatable about its own axis, said reels (10) being rotatable about its own axis in a first direction when said reel-up is in said first condition, and wherein said reels (10) are rotatable about their own axis in a second direction when said reel-up is in said second condition, said first direction being opposite to said second direction.

3. A reel-up according to claim 1, wherein each of said reel-up members (20) is rotatable about its own axis, said reel-up members (20) being rotatable about their own axis in a second direction when said reel-up is in said first condition, said first direction being opposite to said second direction when said reel-up is in said second condition.

4. The winding and unwinding device according to claim 1, characterized in that it further comprises a plurality of first adjustment rollers (12), each first adjustment roller (12) corresponding to one of said base strips (11), and each first adjustment roller (12) being movable with respect to the corresponding base strip (11), and during the movement, the circumferential side of each first adjustment roller (12) being able to come into contact with the corresponding base strip (11).

5. A winding and unwinding device according to claim 1, characterized in that the winding and unwinding device further comprises a second adjustment roller (22), which second adjustment roller (22) is movable relative to the composite web (21) and during the movement the circumferential side of the second adjustment roller (22) is able to come into contact with the composite web (21).

6. A winding and unwinding device according to claim 1, characterized in that it further comprises a composite member (30), said composite member (30) being formed with a fitting channel (31), said base material strips (11) output by each of said winding and unwinding members (10) passing through said fitting channel (31) and fitting to each other to form said composite material strip (21) when said winding and unwinding device is in said first state.

7. A winding and unwinding device according to claim 6, characterized in that said composite member (30) comprises two composite rollers (32), between which two composite rollers (32) said fitting channel (31) is formed.

8. The winding and unwinding device according to claim 1, characterized in that it further comprises a mounting frame (40), each of said winding and unwinding members (10) being movably mounted on said mounting frame (40);

the winding and unwinding device further comprises a plurality of first deviation rectifying pieces (41) which are correspondingly connected with the winding and unwinding pieces (10) in a communication mode, the base material strips (11) which are output or wound by the winding and unwinding pieces (10) pass through the corresponding first deviation rectifying pieces (41), and the winding and unwinding pieces (10) monitor position signals of the base material strips (11) according to the first deviation rectifying pieces (41) to adjust positions corresponding to the mounting frames (40).

9. The winding and unwinding device according to claim 1, characterized in that it further comprises a mounting frame (40), said closing and unwinding members (20) being movably mounted on said mounting frame (40);

the winding and unwinding device further comprises a second deviation rectifying part (42) in communication connection with the combining and unwinding part (20), the composite material belt (21) output or wound by the combining and unwinding part (20) passes through the second deviation rectifying part (42), and the combining and unwinding part (20) monitors a position signal of the composite material belt (21) according to the second deviation rectifying part (42) to adjust a position corresponding to the mounting frame (40).

10. An electrode foil processing system comprising a winding and unwinding device according to any of claims 1-9.