Winding drum structure capable of reducing waste of pole pieces

Abstract

The utility model discloses a winding drum structure capable of reducing waste of pole pieces. The winding drum structure comprises a winding drum body, the PET sheet layer is arranged on the outer surface of the winding drum body, and a wound pole piece is arranged on the outer surface of the PET sheet layer; the supporting assembly is detachably arranged on the inner side of the winding drum body so as to support the winding drum body; by arranging the PET sheet layer, the situation that the innermost layer of pole piece is damaged due to the fact that the curling degree is too large when the pole piece is wound on the winding drum body is avoided, the utilization of the innermost layer of pole piece is improved, by arranging the first supporting ring part, the second supporting ring part and the threaded groove, the stability of the shape of the winding drum body is guaranteed, and when the winding drum is not used in the later period, the winding drum is convenient to use. And the supporting assembly can be disassembled and recycled so as to be reused, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model specifically relates to a roll structure that reduces electrode waste. Background Technology

[0002] With the maturation of new energy vehicle technology, the demand for power batteries has increased accordingly. As a crucial component of power batteries, the demand for electrode sheets has also increased. To meet this huge demand, companies wind the electrode sheets onto spools, circulating them in the form of electrode rolls. As demand continues to rise and companies increase their production capacity, the circulation of electrode rolls is also increasing, and the amount of scrapped rolls is also rising.

[0003] Existing spools have a small outer diameter, and the electrodes are directly wound onto the spool. The innermost electrodes may be damaged due to excessive curling, and excessive curling may also cause the electrodes to warp and be damaged, affecting the later use of the innermost electrodes and resulting in waste. In addition, the metal electrodes are in direct contact with the spool, which may cause scratches on the spool and affect its service life. To address this, we propose a spool structure that reduces electrode waste. Utility Model Content

[0004] The purpose of this invention is to provide a roll structure that reduces electrode waste, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roll structure for reducing electrode waste, comprising:

[0006] Roll body;

[0007] A PET sheet is disposed on the outer surface of the roll body, and a wound electrode is disposed on the outer surface of the PET sheet;

[0008] The support assembly is detachably mounted inside the drum body to support the drum body;

[0009] It facilitates the protection of the outer surface of the roll body through PET sheets, thereby extending the service life of the roll body. It also increases the outer diameter of the roll body through PET sheets, thereby reducing the curl of the innermost electrode after the electrode is wound.

[0010] Preferably, the support assembly includes a first support ring portion, a second support ring portion, and a threaded groove. The first support ring portion and the second support ring portion are evenly distributed along the axial direction of the drum body, and a threaded groove that mates with the second support ring portion is provided at one end of the outer surface of the first support ring portion.

[0011] This facilitates easier assembly and disassembly of the support components.

[0012] Preferably, one end of the outer surface of the second support ring has a flange protruding outward;

[0013] This helps prevent the support components from moving left and right inside the roll body.

[0014] Preferably, the inner wall of the second support ring is fixed with a rubber layer for better anti-slip effect.

[0015] Preferably, the PET sheet is annular.

[0016] Preferably, the PET sheet thickness is 2mm-4mm for better protection.

[0017] Preferably, the inner diameter of the roll body is 8cm.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This utility model incorporates a PET sheet layer to prevent excessive curling and damage to the innermost electrode layer when it is wound onto the roll body. This improves the utilization of the innermost electrode layer, facilitates increasing the outer diameter of the roll body, and effectively protects the outer surface of the roll body, extending its service life. The inclusion of a first support ring, a second support ring, and a threaded groove enhances the strength of the roll body, preventing deformation of the roll body ends due to external impacts or compression, which could lead to difficulties in later installation onto the roller and waste of the roll. This device ensures the stability of the roll body shape, and the support components can be disassembled and recycled for reuse when not in use, thus improving the device's practicality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the support component of this utility model;

[0022] Figure 3 This is a schematic diagram of the second support ring structure of this utility model.

[0023] In the figure: 1. Roll body; 2. PET sheet; 3. Electrode; 4. Support assembly; 401. First support ring; 402. Second support ring; 403. Rubber layer; 404. Threaded groove; 405. Flange. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-3 This utility model provides a technical solution: a roll structure for reducing electrode waste, comprising:

[0026] Roll body 1;

[0027] PET sheet 2 is disposed on the outer surface of roll body 1, and the outer surface of PET sheet 2 is provided with wound electrode sheet 3;

[0028] Support component 4 is detachably installed inside the drum body 1 to support the drum body 1;

[0029] The PET sheet 2 facilitates the protection of the outer surface of the roll body 1, thereby extending the service life of the roll body 1. The PET sheet 2 can also increase the outer diameter of the roll body 1, thereby reducing the curl of the innermost electrode 3 after winding the electrode 3. This reduces the risk of damage and waste caused by excessive curling, and improves the utilization rate of the electrode. The support component 4 helps to improve the support of the roll body 1, preventing damage to the ends of the roll body 1 from external collisions or compression, and ensuring the stability of the shape of the roll body 1.

[0030] In this embodiment, preferably, the support component 4 includes a first support ring portion 401, a second support ring portion 402 and a threaded groove 404. The first support ring portion 401 and the second support ring portion 402 are evenly distributed along the axial direction of the drum body 1, and a threaded groove 404 that cooperates with the second support ring portion 402 is opened at one end of the outer surface of the first support ring portion 401.

[0031] This facilitates the easy assembly and disassembly of support component 4, and allows for its recycling and reuse in the future.

[0032] In this embodiment, preferably, one end of the outer surface of the second support ring portion 402 protrudes outward to form a flange 405;

[0033] This helps to prevent the support component 4 from moving left and right inside the drum body 1.

[0034] In this embodiment, preferably, a rubber layer 403 is fixed to the inner wall of the second support ring portion 402 to facilitate better anti-slip effect.

[0035] In this embodiment, preferably, the PET sheet 2 is annular to facilitate its adaptation to the roll body 1.

[0036] In this embodiment, preferably, the thickness of the PET sheet layer 2 is 2mm-4mm, which facilitates better protective effect.

[0037] In this embodiment, preferably, the inner diameter of the roll body 1 is 8cm.

[0038] The working principle and usage process of this utility model are as follows: In use, by adding a PET sheet layer 2 to the roll body 1, the electrode 3 is connected to the PET sheet layer 2 through the rewinding belt, which helps to reduce the curvature of the innermost electrode 3 when winding the electrode 3, so as to avoid damage to the electrode 3 due to excessive curvature. It can also effectively reduce the scrap caused by excessive curvature and the easy formation of curling edges. The PET sheet layer 2 can also effectively protect the outer surface of the roll body 1, extending the service life of the roll body 1. Furthermore, the inner side of the roll body 1 has a detachable support component 4, which can improve the strength of the roll body 1 and prevent deformation caused by compression or collision at the end of the roll body 1, making it difficult to be fitted onto the roller later. When the roll body 1 is damaged or discarded later, the second support ring 402 can be rotated to separate from the first support ring 401, thereby recycling and reusing the support component 4, which improves the practicality of the device.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roll structure that reduces pole piece waste, characterized by, Include: The reel body (1); PET sheet layer (2), set on the outer surface of the reel body (1), and the outer surface of the PET sheet layer (2) is provided with the winding pole piece (3); Support assembly (4) can be detachably arranged on the inner side of the reel body (1) to support the reel body (1).

2. The reduced pole piece waste roll structure of claim 1, wherein: The support assembly (4) comprises a first support ring part (401), a second support ring part (402) and a threaded groove (404), the first support ring part (401) and the second support ring part (402) are uniformly distributed along the axis of the reel body (1), and one end of the outer surface of the first support ring part (401) is provided with a threaded groove (404) matched with the second support ring part (402).

3. A core waste reducing roll structure according to claim 2, wherein: One end of the outer surface of the second support ring part (402) is outwardly protruded to form a flange (405).

4. The reduced pole piece waste roll structure of claim 2, wherein: The inner wall of the second support ring part (402) is fixed with a rubber layer (403).

5. The reduced pole piece waste roll structure of claim 1, wherein: The PET sheet layer (2) is annular.

6. The reduced pole piece waste roll structure of claim 1, wherein: The thickness of the PET sheet layer (2) is 2mm-4mm.

7. The reduced pole piece waste roll structure of claim 1, wherein: The inner diameter of the reel body (1) is 8cm.

Images