Pole roll roller passing device with tab guide mechanism

Abstract

The utility model discloses a pole roll roller passing device with a pole lug guide mechanism, and belongs to the technical field of lithium battery production. A pole roll passing roll shaft and a guide roll shaft which are arranged in parallel front and back are arranged between the two side fixing plates, the pole roll passing roll shaft is rotationally sleeved with a pole roll passing roll, and the outer sides of the two ends of the guide roll shaft are rotationally sleeved with guide rolls. A first groove is formed in the upper surface of the side fixing plate, a second groove communicated with the first groove is formed in the inner side wall of the side fixing plate, the two ends of the guide roller shaft are arranged in the second groove, and a first locking screw is arranged in the first groove and connected with the guide roller shaft. A guide plate fixing block is arranged at one end of the guide roller shaft and connected with the guide plate. According to the utility model, through the guide mechanism formed by the adjustable guide roll shaft and the elastic buffer guide roll, an accurate guide surface is formed in a tab transmission path, so that the technical defects of low yield, battery performance degradation, potential safety hazards and the like caused by easy folding and deflection of tabs in the prior art are effectively overcome.

Description

Technical Field

[0001] This utility model relates to an electrode roll passing device with an electrode guide mechanism, belonging to the field of lithium battery production technology. Background Technology

[0002] In the production process of new energy lithium-ion batteries, the electrode sheet is a core component of the battery, and its quality directly affects the battery's electrochemical performance and safety. In the key process of electrode sheet manufacturing—the slitting and stacking process—the electrode rolls need to be fed through rollers to complete necessary operations such as deviation correction and defect detection.

[0003] However, a significant problem exists in the current electrode rolling process: the tabs (the metal current collectors at the edge of the electrode) lack an effective guiding mechanism. This makes the tabs highly susceptible to folding or shifting during the rolling process. Folding or shifting of the tabs leads to a series of adverse consequences: First, it increases the risk of the electrode becoming scrap, as folded tabs are likely to be rejected during subsequent sizing and stacking inspections. Second, even if a folded tab manages to enter the battery cell, it will reduce the battery's capacity, and due to defects in the internal structure of the electrode, the battery's aging and degradation rate will be significantly accelerated, potentially even triggering serious thermal runaway risks, threatening battery safety.

[0004] In order to fundamentally ensure the performance and safety of batteries, there is an urgent need for an innovative electrode roll passing device with an electrode tab guiding mechanism. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides an electrode roll passing device with an electrode tab guiding mechanism.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an electrode roll guiding device with an electrode lug mechanism, comprising an electrode roll guiding shaft, an electrode roll guiding roller, a guide roller shaft, a guide roller, and two side fixing plates; the two side fixing plates are arranged in parallel, and an electrode roll guiding shaft and a guide roller shaft are arranged in parallel front and rear between the two side fixing plates; the two ends of the electrode roll guiding shaft are fixedly connected to the corresponding side fixing plates; the electrode roll guiding roller is rotatably mounted on the outer side of the electrode roll guiding shaft; and guide rollers are rotatably mounted on the outer sides of both ends of the guide roller shaft.

[0007] The outer circumferential surface of the guide roller is covered with an elastic buffer layer.

[0008] Each of the side fixing plates has a groove 1 on its upper surface and a groove 2 on its inner sidewall. The two grooves 2 are arranged correspondingly. Each groove 1 is connected to the corresponding groove 2. The two ends of the guide roller shaft are slidably arranged in the corresponding groove 2. Each groove 1 is provided with a locking screw 1. The lower end of each locking screw 1 is connected to the corresponding end of the guide roller shaft.

[0009] A guide plate fixing block is installed at one end of the guide roller shaft, and the guide plate fixing block is fixedly connected to the upper end of the guide plate.

[0010] The guide plate fixing block includes two half plates that are detachably and fixedly connected by two locking screws. After the two half plates are fixed and closed by the two locking screws, they clamp one end of the guide roller shaft. One half plate is fixedly connected to the upper end of the guide plate.

[0011] The guide surface of the guide plate is an arc-shaped curved surface or an inclined plane.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a guiding mechanism comprised of an adjustable guide roller shaft and an elastic buffer guide roller to create a precise guiding surface in the electrode conveying path. This effectively addresses the technical shortcomings of existing technologies, such as low yield, battery performance degradation, and safety hazards caused by electrode buckling and misalignment. Simultaneously, a side-fixed plate grooved guide roller shaft positioning structure, coupled with locking screws, allows for adjustment of the three-dimensional spatial position of the guiding components, adapting to the process requirements of different electrode roll specifications. The composite design of the elastic buffer layer and the arc-shaped / inclined flat guide plate provides buffer protection during electrode flattening, preventing mechanical damage while ensuring guiding accuracy. By controlling electrode conveying stability at the source, it reduces electrode scrap rate, improves battery capacity consistency, and enhances the stability and reliability of battery electrochemical performance. It also boasts advantages such as excellent structural adjustability and convenient installation and maintenance, providing crucial process assurance for the large-scale production of lithium-ion batteries. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 yes Figure 1 The main view;

[0016] Figure 3 yes Figure 1 Side view;

[0017] Figure 4 yes Figure 1 Top view. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0019] An electrode winding roller device with an electrode lug guiding mechanism includes an electrode winding roller shaft 1, an electrode winding roller 2, a guide roller shaft 3, a guide roller 4, and two side fixing plates 6. The two side fixing plates 6 are arranged in parallel, and the electrode winding roller shaft 1 and the guide roller shaft 3 are arranged in parallel front and rear between the two side fixing plates 6. The two ends of the electrode winding roller shaft 1 are fixedly connected to the corresponding side fixing plates 6. The electrode winding roller 2 is rotatably mounted on the outer side of the electrode winding roller shaft 1 through bearings. The guide roller 4 is rotatably mounted on the outer side of both ends of the guide roller shaft 3 through bearings.

[0020] The outer circumferential surface of the guide roller 4 is covered with an elastic buffer layer, which is made of rubber or silicone material and is used to increase the friction between the electrode tab and the guide roller 4 to prevent the electrode tab from sliding and flipping.

[0021] Each of the side fixing plates 6 has a groove 1 on its upper surface and a groove 2 on its inner sidewall. The two grooves 2 are arranged correspondingly. Each groove 1 is connected to the corresponding groove 2. The two ends of the guide roller shaft 3 are slidably arranged in the corresponding groove 2. Each groove 1 is provided with a locking screw 5. The lower end of each locking screw 5 is connected to the corresponding end of the guide roller shaft 3. The locking screw 5 drives the guide roller shaft 3 to move along the groove 2 to adjust the position of the guide roller 4.

[0022] One end of the guide roller shaft 3 is equipped with a guide plate fixing block 7, which is fixedly connected to the upper end of the guide plate 9.

[0023] The guide plate fixing block 7 includes two half plates that are detachably and fixedly connected by locking screws 28. After the two half plates are fixed and closed by locking screws 28, they clamp one end of the guide roller shaft 3. One half plate is fixedly connected to the upper end of the guide plate 9. By changing the installation angle of the guide plate fixing block 7, the tilt angle of the guide plate 9 is changed, so that the guide plate 9 forms a guide slope that matches the electrode ear roller path, so as to adapt to the guiding requirements of electrode ear of different specifications.

[0024] The guide surface of the guide plate 9 is an arc-shaped curved surface or an inclined plane.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pole roll guiding device with a pole tab guiding mechanism, characterized in that: It includes an electrode winding roller shaft (1), an electrode winding roller (2), a guide roller shaft (3), a guide roller (4), and two side fixing plates (6); the two side fixing plates (6) are arranged in parallel, and the electrode winding roller shaft (1) and the guide roller shaft (3) are arranged in parallel front and rear between the two side fixing plates (6). The two ends of the electrode winding roller shaft (1) are fixedly connected to the corresponding side fixing plates (6), and the electrode winding roller (2) is rotatably mounted on the outer side of the electrode winding roller shaft (1). The guide roller (4) is rotatably mounted on the outer side of both ends of the guide roller shaft (3).

2. The electrode winding roller passing device with an electrode tab guiding mechanism according to claim 1, characterized in that: The outer circumferential surface of the guide roller (4) is covered with an elastic buffer layer.

3. A pole roll passing device with a pole tab guiding mechanism according to claim 1 or 2, characterized in that: Each of the side fixing plates (6) has a groove 1 on its upper surface and a groove 2 on its inner sidewall. The two grooves 2 are arranged correspondingly. Each groove 1 is connected to the corresponding groove 2. The two ends of the guide roller shaft (3) are slidably arranged in the corresponding groove 2. Each groove 1 is provided with a locking screw 1 (5). The lower end of each locking screw 1 (5) is connected to the corresponding end of the guide roller shaft (3).

4. The electrode winding roller passing device with an electrode tab guiding mechanism according to claim 3, characterized in that: One end of the guide roller shaft (3) is equipped with a guide plate fixing block (7), and the guide plate fixing block (7) is fixedly connected to the upper end of the guide plate (9).

5. A pole roll guiding device with a pole tab guiding mechanism according to claim 4, characterized in that: The guide plate fixing block (7) includes two half plates that are detachably fixedly connected by locking screws (8). After the two half plates are fixed and closed by locking screws (8), they clamp one end of the guide roller shaft (3). One half plate is fixedly connected to the upper end of the guide plate (9).

6. A pole roll guiding device with a pole tab guiding mechanism according to claim 4 or 5, characterized in that: The guide surface of the guide plate (9) is an arc-shaped curved surface or an inclined plane.

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