Roller matching ring, roller matching assembly and pole piece processing device
By designing a removable roller mating ring, the problem of the roll being unable to adapt to the electrode plates of different sizes is solved, resulting in the pleat wrinkle of the ears, and flexible adaptation and efficient rolling of the electrode plates of different sizes is achieved.
Patent Information
- Application Number
- CN202421306487.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-07
AI Technical Summary
In the electrode sheet rolling process, the roller cannot adapt to the electrode sheets of different sizes, resulting in wrinkles at the electrode ears, affecting the normal operation of the process.
A removable roller mating ring is designed, including a first ring body and a second ring body, the first ring body connected to a second ring body, and the second ring body is used to support the pole ear of the pole sheet. The roller mating ring is movable along the axial direction of the roller and can be adjusted and replaced according to the pole sheets of different sizes.
Through the design of the removable roller mating ring, it can be adapted to the pole sheets of different sizes to avoid wrinkles from the pole ears, and improve the flexibility and efficiency of the process.
Smart Images
Figure CN222914815U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of battery cell processing, and particularly relates to a roller matching ring, a roller matching assembly and a pole piece processing device. Background Art
[0002] Since the thickness of the pole piece is much larger than that of the tab, in the current pole piece rolling process, obvious extension occurs at the pole piece during the rolling process, while the tab part cannot contact the roller, so there is basically no deformation. At this time, wrinkles will form at the contact part between the pole piece and the tab, affecting the normal operation of the subsequent process. The current solution is to paste a certain thickness of Teflon tape at the position corresponding to the tab on the roller, so as to raise the tab. During the rolling process, the tab can be rolled by the roller, so as to extend the tab part. However, when rolling pole pieces of different sizes, the original Teflon tape needs to be removed and re-pasted, and then the position of the coating or the tape needs to be re-set to adapt to pole pieces of different sizes. Summary of the Utility Model
[0003] The purpose of the present application is to provide a roller matching ring, a roller matching assembly and a pole piece processing device, so as to solve the problem that wrinkles are generated at the tab due to the roller not being able to adapt to pole pieces of different sizes.
[0004] To achieve the purpose of the present application, the following technical solutions are provided:
[0005] In the first aspect, the present utility model provides a roller matching ring, which is detachably connected to the roller for rolling the pole piece, and the roller matching ring is axially movable along the roller; the roller matching ring includes a first ring body and a second ring body, and the first ring body is connected to the second ring body; the second ring body is used to support the tab of the pole piece.
[0006] In one embodiment, axially along the roller, the first ring body is close to the bottom wall of the roller, and the second ring body is located on the side of the first ring body away from the bottom wall.
[0007] In one embodiment, the outer diameter H1 of the first ring body and the outer diameter H2 of the second ring body satisfy: H1 > H2.
[0008] In one embodiment, the roller matching ring includes a first fitting, a second fitting, a third fitting and a fourth fitting; the first fitting and the second fitting cooperate to form the first ring body; the third fitting and the fourth fitting cooperate to form the second ring body.
[0009] In one embodiment, the first fitting and the third fitting are of an integral structure; the second fitting and the fourth fitting are of an integral structure.
[0010] In one implementation, the first mating part includes a first fixing part, the second mating part includes a second fixing part, and the first fixing part and the second fixing part are connected so that the roller mating ring is connected to the roller.
[0011] In one implementation, the first fixing part is a through hole, and the second fixing part is a threaded hole; the roller mating ring further includes a connecting part, and the connecting part extends into the through hole and the threaded hole.
[0012] In one implementation, the first fixing part is a groove, and the second fixing part is a boss, and the boss extends into the groove; or, the first fixing part is a first magnet part, the second fixing part is a second magnet part, and the first magnet part and the second magnet part are magnetically connected.
[0013] In a second aspect, the present utility model provides a roller mating assembly, the roller mating assembly includes the roller mating ring as described in any item of the first aspect; the number of the roller mating rings is two; the two roller mating assemblies are respectively a first roller mating ring and a second roller mating ring, along the axial direction of the roller, the second ring bodies of the first roller mating ring and the second roller mating ring are arranged opposite to each other, and the pole piece is arranged between the second ring bodies of the first roller mating ring and the second roller mating ring.
[0014] In a third aspect, the present utility model provides a pole piece processing device, the pole piece processing device includes a roller and the roller mating assembly as described in the second aspect, and the roller mating assembly is detachably connected to the roller.
[0015] The present utility model provides a roller mating ring, the roller mating ring is detachably connected to the roller for rolling pole pieces, and the roller mating ring is axially movable along the roller; the roller mating ring includes a first ring body and a second ring body, and the first ring body is connected to the second ring body; the second ring body is used to support the tab of the pole piece. Through the above settings, the position of the detachable roller mating ring is adjusted, so that the roller mating ring can be adapted to pole pieces of different sizes; and the roller mating ring is divided into a first ring body and a second ring body, the first ring body restricts the position of the pole piece during rolling, preventing uneven rolling of the pole piece caused by the movement of the pole piece; the second ring body can support the tab of the pole piece to ensure that there are no wrinkles between the tab and the pole piece during the pole piece rolling process. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 Schematic diagram of a roller mating ring of an embodiment;
[0018] Figure 2 Schematic diagram of a roller mating ring of another embodiment;
[0019] Figure 3 Schematic diagram of a roller mating ring of another embodiment;
[0020] Figure 4 Schematic diagram of a first ring body of an embodiment;
[0021] Figure 5 Schematic diagram of a roller mating assembly of an embodiment.
[0022] Explanation of reference numerals:
[0023] 1 - Roller mating ring, 11 - First ring body, 111 - First mating part, 1111 - First fixing part, 112 - Second mating part, 1121 - Second fixing part, 12 - Second ring body, 121 - Third mating part, 122 - Fourth mating part; 2 - Roller; 3 - Roller mating assembly; 1A - First roller mating ring, 1B - Second roller mating ring. Detailed implementation manners
[0024] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0025] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.
[0026] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used in the present application in the specification are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The term "and / or" used in the present application includes any and all combinations of one or more of the related listed items.
[0027] Next, some embodiments of the present application will be described in detail in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.
[0028] In one implementation, please refer to Figure 1 and Figure 2 , the present utility model provides a roller mating ring 1, the roller mating ring 1 is detachably connected to a roller 2 for rolling a pole piece, and the roller mating ring 1 is axially movable along the roller 2; the roller mating ring 1 includes a first ring body 11 and a second ring body 12, and the first ring body 11 is connected to the second ring body 12; the second ring body 12 is used to support the tab of the pole piece.
[0029] During the manufacturing process of the battery cell, it is necessary to roll the pole piece to coat the pole piece on the current collector; at the same time, since the thickness of the pole piece is much larger than the thickness of the tab, it is also necessary to raise the tabs on both sides of the pole piece relative to the pole piece. The purpose of the raising process is to ensure that the tabs can contact the roller during the rolling of the pole piece, deform, and avoid forming wrinkles at the contact part between the pole piece and the tab. The setting of the roller mating ring 1 raises the position of the tab, so that the tab can contact the roller during the rolling of the pole piece.
[0030] The roller mating ring 1 is detachably connected to the roller 2 for rolling the pole piece, and the roller mating ring 1 is axially movable along the roller 2; the detachable connection enables the roller mating ring 1 to be quickly replaced and adjusted according to different production requirements, such as pole pieces of different specifications, improving the flexibility of rolling the pole piece; the detachable connection enables the roller mating ring 1 to be maintained and replaced without disassembling the entire roller, saving the time and labor for rolling the pole piece and improving production efficiency.
[0031] In a specific embodiment, when it is necessary to roll large-size or small-size pole pieces, the roller mating ring 1 detachably connected to the roller is removed, and the roller mating ring 1 is moved axially along the roller 2 to adapt to pole pieces of different sizes.
[0032] The roller mating ring 1 includes a first ring body 11 and a second ring body 12, and the first ring body 11 is connected to the second ring body 12; the second ring body 12 is used to support the tab of the pole piece. The setting of two ring bodies (the first ring body 11 and the second ring body 12) can provide a more stable and flexible support structure to better adapt to the tab during the process of rolling the pole piece, improving the accuracy and efficiency of the operation. The first ring body 11 is directly connected to the roller, enabling the roller mating ring 1 to be better fixed and positioned with the roller, and the first ring body 11 restricts the position of the pole piece during rolling, preventing the movement of the pole piece from causing uneven rolling of the pole piece; the second ring body 12 is used to support the tab, so as to be adjusted according to the height of the tab to ensure that the tab can contact the roller during rolling.
[0033] In a specific embodiment, before the pole piece is rolled, coatings with different widths and heights are pasted on the second ring body 12 in advance, and by controlling the width and height of the coatings, pole pieces of different sizes can be adapted. Pasting the coatings in advance can also save the time for replacing the coatings, reduce the labor intensity of the operators, enhance the convenience of operation, and thus increase the production efficiency; at the same time, it can avoid damage to the rollers, reduce the maintenance cost; and it can also reduce the usage amount of the coatings and reduce the cost.
[0034] In a specific embodiment, the first ring body and the second ring body are circular ring bodies.
[0035] The present utility model provides a roller matching ring 1, which is detachably connected to the roller for rolling the pole piece, and the roller matching ring 1 is axially movable along the roller; the roller matching ring 1 includes a first ring body 11 and a second ring body 12, and the first ring body 11 is connected to the second ring body 12; the second ring body 12 is used to support the tab of the pole piece. Through the above settings, the detachable roller matching ring 1 adjusts its position, so that the roller matching ring 1 can adapt to pole pieces of different sizes; and the roller matching ring 1 is divided into a first ring body 11 and a second ring body 12. The first ring body 11 restricts the position of the pole piece during rolling, preventing uneven rolling of the pole piece caused by the movement of the pole piece; the second ring body 12 can support the tab of the pole piece to ensure that no wrinkles are generated between the tab and the pole piece during the pole piece rolling process.
[0036] In one implementation manner, please refer to Figure 1 , along the axial direction of the roller 2, the first ring body 11 is close to the bottom wall of the roller 2, and the second ring body 12 is located on the side of the first ring body 11 away from the bottom wall.
[0037] With such a setting, the second ring body 12 is located on the side of the first ring body 11 away from the bottom wall, and the second ring body 12 can contact the tab, so that the second ring body 12 can adjust the position and height of the tab to ensure that the tab is properly protected during the pole piece rolling process. And the first ring body 11 is close to the bottom wall of the roller, so that the first ring body 11 is relatively far from the tab compared with the second ring body 12. With such a setting, the first ring body 11 can fix and position the roller matching ring to ensure the stability of the roller matching ring during the rolling process.
[0038] In one implementation manner, please refer to Figure 2 , the outer diameter H1 of the first ring body 11 and the outer diameter H2 of the second ring body 12 satisfy: H1 > H2.
[0039] The outer diameter H1 of the first ring body 11 is greater than the outer diameter H2 of the second ring body 12. The second ring body 12 with a smaller outer diameter can adjust the tab in a relatively small range, enabling the second ring body 12 to finely adjust to ensure the position of the tab. Ensure that the tab can come into contact with the roller during the pole piece rolling process and be rolled, avoiding the formation of wrinkles at the contact part between the pole piece and the tab. The outer diameter of the second ring body 12 is small. When the outer diameter of the second ring body 12 is too small to meet the requirement of adjusting the tab position, a cushion layer can also be pasted at the second ring body 12 to ensure that the tab is correctly positioned during the pole piece rolling process.
[0040] The first ring body 11 with a large outer diameter is provided. The outer diameters of the first ring body 11 and the second ring body 12 are different. The first ring body 11 with a large outer diameter can limit the position of the pole piece on the roller fitting ring 1, preventing the pole piece from moving during rolling; to adapt to pole pieces of different such sizes.
[0041] In one implementation, please refer to Figure 3 , the roller fitting ring 1 includes a first fitting 111, a second fitting 112, a third fitting 121, and a fourth fitting 122; the first fitting 111 and the second fitting 112 cooperate to form the first ring body 11; the third fitting 121 and the fourth fitting 122 cooperate to form the second ring body 12.
[0042] The cooperation between the first fitting 111 and the second fitting 112 enables the first ring body 11 to be detachably connected to the roller for rolling the pole piece, and the cooperation between the third fitting 121 and the fourth fitting 122 enables the second ring body 12 to be detachably connected to the roller for rolling the pole piece, so that the roller fitting ring 1 is detachably connected to the roller 2 for rolling the pole piece. Allows the roller fitting ring 1 to adapt to rollers of different sizes and types, and the roller fitting ring 1 adapts to pole pieces of different sizes. When it is necessary to replace the roller fitting ring 1, the replacement can be quickly completed, reducing the downtime and improving the production efficiency.
[0043] In a specific embodiment, the first fitting 111 and the second fitting 112 are semi-circular rings to cooperate to form a circular first ring body 11; the third fitting 121 and the fourth fitting 122 are semi-circular rings to cooperate to form a circular second ring body 12. Optionally, the first fitting 111 and the second fitting 112 can also be arcs with different curvatures, and the arcs of the first fitting 111 and the second fitting 112 can form a circular first ring body 11; the third fitting 121 and the fourth fitting 122 can also be arcs with different curvatures, and the arcs of the third fitting 121 and the fourth fitting 122 can form a circular second ring body 12.
[0044] In one implementation, the first fitting 111 and the second fitting 112 are of an integral structure; the third fitting 121 and the fourth fitting 122 are of an integral structure.
[0045] The first mating part 111 and the second mating part 112, the third mating part 121 and the fourth mating part 122 are of an integral structure, enhancing the overall structural stability of the roller mating ring 1 and ensuring that no unnecessary movement or deformation occurs during the rolling process. The first mating part 111 and the second mating part 112, the third mating part 121 and the fourth mating part 122 respectively constitute two movable parts of the roller mating ring 1, and these two movable parts enable the roller mating ring 1 to move along the axial direction of the roller, thereby adjusting the position of the roller mating ring 1 on the roller. The position of the roller mating ring 1 can be adjusted according to different production requirements to adapt to tabs of different sizes and shapes.
[0046] In one embodiment, please refer to Figure 4 , the first mating part 111 includes a first fixing part 1111, the second mating part 112 includes a second fixing part 1121, and the first fixing part 1111 and the second fixing part 1121 are connected to connect the roller mating ring 1 to the roller.
[0047] The first fixing part 1111 is provided on the first mating part 111, the second fixing part 1121 is provided on the second mating part 112, and the first fixing part 1111 and the second fixing part 1121 are connected together to connect the roller mating ring 1 to the roller; when the roller mating ring 1 needs to be disassembled, the first fixing part 1111 and the second fixing part 1121 are disconnected, enabling the roller mating ring 1 to move on the roller along the axial direction of the roller to adapt to tabs of different sizes and shapes.
[0048] In one embodiment, the first fixing part 1111 is a through hole, the second fixing part 1121 is a threaded hole; the roller mating ring 1 further includes a connecting piece that extends into the through hole and the threaded hole.
[0049] The design where the first fixing part 1111 is a through hole and the second fixing part 1121 is a threaded hole can achieve a more secure fixation of the first fixing part 1111 and the second fixing part 1121, enabling the roller mating ring 1 to be better fixed on the roller and ensuring that the roller mating ring 1 does not loosen during the rolling process. The first fixing part 1111 and the second fixing part 1121 can be flexibly disconnected or connected to achieve quick installation and disassembly, making the maintenance and replacement of the roller mating ring 1 more convenient and improving the operational convenience. The connecting piece can be a nut or a pin. Optionally, the diameter of the through hole is the same as the diameter of the threaded hole, and the nut or pin can pass through the through hole and the threaded hole, thereby connecting the first mating part 111 and the second mating part 112 and enabling the roller mating ring 1 to be connected to the roller.
[0050] In one embodiment, the first fixing part 1111 is a groove, the second fixing part 1121 is a boss, and the boss extends into the groove.
[0051] The first fixing part 1111 is a groove, and the second fixing part 1121 is a boss. When the boss extends into the groove, the first fitting 111 is connected to the second fitting 112. The boss extending into the groove provides a mechanical locking mechanism, forming a connection between the roller fitting ring 1 and the roller, ensuring that it will not loosen during the rolling process. The design of the boss extending into the groove makes the maintenance and replacement of the roller fitting ring 1 convenient. The boss can be easily inserted into or removed from the groove, enabling quick disassembly, saving time and improving production efficiency.
[0052] In one embodiment, the first fixing part 1111 is a first magnet part, and the second fixing part 1121 is a second magnet part. The first magnet part and the second magnet part are magnetically connected.
[0053] The magnetic connection between the first magnet part and the second magnet part enables the first fixing part 1111 and the second fixing part 1121 to be quickly magnetically connected. The magnetic connection can reduce mechanical wear between the first fixing part 1111 and the second fixing part 1121, extending the service life of the first fixing part 1111 and the second fixing part 1121; the magnetic connection does not require tools, reducing the risk of injury that may occur during the operation process.
[0054] In one embodiment, please refer to Figure 5 , the present utility model provides a roller fitting assembly 3. The roller fitting assembly 3 includes a roller fitting ring 1 as described in any one of the above embodiments; the number of roller fitting rings 1 is two; the two roller fitting assemblies 3 are respectively a first roller fitting ring 1A and a second roller fitting ring 1B. Along the axial direction of the roller, the second ring body 12 of the first roller fitting ring 1A is disposed opposite to the second ring body 12 of the second roller fitting ring 1B, and the pole piece is disposed between the second ring body 12 of the first roller fitting ring 1A and the second ring body 12 of the second roller fitting ring 1B.
[0055] The two roller fitting rings are symmetrically arranged along the axial direction of the roller 2. Further, the second ring body 12 of the first roller fitting ring 1A is symmetrically disposed opposite to the second ring body 12 of the second roller fitting ring 1B. The pole piece is disposed between the two second ring bodies 12, enabling the two second ring bodies 12 to contact the pole ears on both sides of the pole piece. The pole ears on both sides of the pole piece are supported by the second ring bodies 12, so that the heights of the pole ears on both sides can be adjusted to ensure that the pole ears on both sides are in contact with the roller during the rolling process. The two symmetric roller fitting rings can ensure that when pole ears are provided on both sides of the pole piece, the pole ears on both sides can be lifted by the second ring bodies 12 of the first roller fitting ring 1A and the second roller fitting ring 1B, enabling the pole ears on both sides of the pole piece to be in contact with the roller and preventing wrinkles from occurring at the pole ears on both sides.
[0056] In a specific embodiment, when the size of the pole piece does not match the size of the roller mating ring, disconnect the first fixing portion 1111 and the second fixing portion 1121 of one roller mating ring 1 in the roller mating assembly 3, so that the first fitting 111 and the second fitting 112 no longer combine the first ring body 11 into a whole, and the third fitting 121 and the fourth fitting 122 no longer combine the second ring body 12 into a whole, realizing the detachable connection of the roller mating ring 1 relative to the roller, and performing the same operation on the other roller mating ring 1. So that both roller mating rings 1 can move axially along the roller. When producing a pole piece with a larger size, the two roller mating rings 1 are arranged relatively far apart, the tab contacts the second ring body 12, and the second ring body 12 adjusts the position and height of the tab to ensure that the tab contacts the roller during the rolling process. And when the outer diameter H2 of the second ring body 12 is too small to meet the requirement of adjusting the position of the tab, a cushion layer can also be pasted at the second ring body 12 in advance before the pole piece rolling process to ensure that the tab is correctly positioned during the pole piece rolling process. When producing a pole piece with a smaller size, the two roller mating rings 1 are arranged relatively close to each other to meet the requirements of producing a pole piece with a smaller size.
[0057] In an implementation manner, the present utility model provides a pole piece processing device, and the pole piece processing device includes a roller 2 and a roller mating assembly 3 as in the second aspect, and the roller mating assembly 3 is detachably connected to the roller 2.
[0058] In a specific embodiment, the pole piece is installed on the pole piece processing device for processing the pole piece rolling process, the roller rolls the pole piece, the roller mating assembly restricts and adapts to the pole piece, and the second ring body 12 of the roller mating assembly supports the tabs on both sides of the pole piece to adjust the heights of the tabs on both sides of the pole piece to ensure that the tabs on both sides contact the roller during the rolling process. When the size of the pole piece does not match the distance between the two roller mating rings 1, disconnect the first fixing portion 1111 and the second fixing portion 1121 of the roller mating ring 1, so that the first fitting 111 and the second fitting 112 no longer combine the first ring body 11 into a whole, and the third fitting 121 and the fourth fitting 122 no longer combine the second ring body 12 into a whole. Thereby realizing the detachable connection of the roller mating ring 1 relative to the roller, and performing the same operation on the other roller mating ring 1. So that both roller mating rings 1 can move axially along the roller. When producing a pole piece with a larger size, the two roller mating rings 1 are arranged relatively far apart, the tab contacts the second ring body 12, and the second ring body 12 adjusts the height of the tab to ensure that the tab contacts the roller during the rolling process. When the thickness of the pole piece is too large, the second ring body 12 raises the position of the tab to the position where it contacts the roller, and a cushion layer can also be pasted at the second ring body 12 in advance before the pole piece rolling process to ensure that the tab contacts the roller during the pole piece rolling process. When producing a pole piece with a smaller size, the two roller mating rings 1 are arranged relatively close to each other to meet the requirements of producing a pole piece with a smaller size.
[0059] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.
[0060] The above-disclosed is only a preferred embodiment of the present application. Of course, it cannot be used to limit the scope of the rights of the present application. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present application still fall within the scope covered by the present application.
Claims
1. A roller matching ring, characterized in that: The roller matching ring is detachably connected to the roller for rolling the pole piece, and is movable along the axial direction of the roller; the roller matching ring comprises a first ring body and a second ring body, the first ring body is connected to the second ring body; the second ring body is used to support the pole ear of the pole piece.
2. The roller matching ring according to claim 1, characterized in that: Along the axial direction of the roller, the first ring body is close to the bottom wall of the roller, and the second ring body is located on a side of the first ring body away from the bottom wall.
3. The roller matching ring according to claim 1, characterized in that: The outer diameter H1 of the first ring body and the outer diameter H2 of the second ring body satisfy: H1>H2.
4. The roller matching ring according to claim 1, characterized in that: The roller matching ring includes a first matching piece, a second matching piece, a third matching piece and a fourth matching piece; the first matching piece and the second matching piece match to form the first ring body; the third matching piece and the fourth matching piece match to form the second ring body.
5. The roller matching ring according to claim 4, characterized in that: The first matching piece and the third matching piece are an integrated structure; the second matching piece and the fourth matching piece are an integrated structure.
6. The roller matching ring according to claim 4, characterized in that: The first matching piece includes a first fixing portion, the second matching piece includes a second fixing portion, and the first fixing portion and the second fixing portion are connected so that the roller matching ring is connected to the roller.
7. The roller matching ring according to claim 6, characterized in that: The first fixing portion is a through hole, and the second fixing portion is a threaded hole; the roller matching ring further comprises a connecting piece, and the connecting piece extends into the through hole and the threaded hole.
8. The roller matching ring according to claim 6, characterized in that: The first fixing portion is a groove, the second fixing portion is a boss, and the boss extends into the groove; or, The first fixing part is a first magnet part, the second fixing part is a second magnet part, and the first magnet part and the second magnet part are connected by magnetic attraction.
9. A roller matching assembly, characterized in that: The roller mating assembly includes a roller mating ring as described in any one of claims 1 to 8; the number of the roller mating rings is two; the two roller mating rings are respectively a first roller mating ring and a second roller mating ring, and along the axial direction of the roller, the second ring body of the first roller mating ring is arranged opposite to the second ring body of the second roller mating ring, and the pole piece is arranged between the second ring body of the first roller mating ring and the second ring body of the second roller mating ring.
10. A pole piece processing device, characterized in that: The pole piece processing device comprises a roller and a roller matching assembly as claimed in claim 9, wherein the roller matching assembly is detachably connected to the roller.