Movable tab flattening device
By designing a movable tab smoothing device, and utilizing a sliding mechanism and main roller height adjustment, the problem of insufficient flexibility of traditional devices in multi-variety, small-batch production has been solved, achieving efficient and flexible tab smoothing, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUZHOU GUOXUAN NEW ENERGY POWER CO LTD
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional tab smoothing devices are fixed on the production line, which makes it difficult to adapt to the flexibility requirements of multi-variety, small-batch production mode, increasing production costs and changeover time.
Design a movable tab smoothing device that achieves flexible adjustment of the smoothing roller assembly through a sliding mechanism and a detachable main roller structure to adapt to different tab specifications and types, including the sliding mechanism of the smoothing roller assembly and the height adjustment of the main roller.
It improved production efficiency and product quality, reduced production costs, enhanced the flexibility and adaptability of the production line, and reduced film surface damage.
Smart Images
Figure CN224177337U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery manufacturing technology, and in particular to a movable tab smoothing device. Background Technology
[0002] In the production process of lithium-ion batteries, the tabs, as key components connecting the cell to the external circuitry, directly affect the battery's performance and lifespan due to their flatness and quality. Traditional tab smoothing devices are typically fixed on the production line, making it difficult to adapt to changes in different production environments and requirements. Especially in multi-variety, small-batch production models, fixed smoothing devices are inflexible, increasing production costs and changeover time. Utility Model Content
[0003] To address the technical problems existing in the background art, this utility model proposes a movable tab smoothing device.
[0004] This utility model proposes a movable tab smoothing device for smoothing the tabs of a battery cell, comprising:
[0005] The smoothing mechanism includes at least one smoothing roller assembly, each smoothing roller assembly sliding above the battery cell via a corresponding sliding mechanism, and each smoothing roller assembly includes a pressure roller, which flattens the electrode tab by rolling pressure when rotating.
[0006] The main roller is located below the battery cell and is detachably mounted on two fixed seats on both sides. The main roller can move along the height direction of the fixed seat and be fixed by a fixing member to adjust the distance between the main roller and the pressure roller, thereby adapting to electrode sheets of different thicknesses.
[0007] In this way, the device can be easily moved on different battery production lines to adapt to the needs of different specifications and types of tab smoothing. Through the sliding mechanism, the smoothing parameters can be adjusted quickly and accurately, improving production efficiency and product quality, increasing flexibility, reducing costs, and improving product quality.
[0008] Preferably, the sliding mechanism includes:
[0009] A sliding rod is installed above the cell conveying line and parallel to the axis of the main roller;
[0010] A slider slides on the sliding rod, and its lower end is rotatably connected to the end of the pressure roller. The pressure roller is arranged parallel to the main roller.
[0011] By sliding each of the sliders, the pressure rollers corresponding to each slider are slid, thereby adjusting the distance between each smoothing roller group.
[0012] Preferably, the device further includes a limiting member for limiting the slider on the sliding rod, the limiting member being a fastening nut.
[0013] In this way, by sliding the slider along the sliding rod axially, the pressure roller is driven to slide, thereby adjusting the position of the smoothing roller assembly to adapt to the smoothing work of tabs of different sizes.
[0014] Preferably, the fixing member is a fastening screw, and the fixing seat has multiple fixing holes in the height direction. The main roller is fixed to each of the fixing holes at different heights by the fastening screws, so as to adjust the height of the main roller and thus adjust the distance between it and the pressure roller.
[0015] This allows for adaptation to different electrode thicknesses and reduces film surface damage, thus improving production flexibility.
[0016] Preferably, the outer surface of the pressure roller is specially treated to form a smooth surface.
[0017] Preferably, the special treatment is mirror polishing.
[0018] This reduces roughness and improves the smoothing effect.
[0019] Preferably, the surface of the main roller is provided with an outwardly extending thread from the center of the roller to both sides.
[0020] Preferably, the surface of the main roller is chrome-plated.
[0021] This reduces friction with the electrode coil area and reduces film surface defects.
[0022] In summary, this utility model has the following beneficial effects: the sliding mechanism enables rapid adjustment of the spacing between each smoothing roller group, allowing for quick and accurate adjustment of smoothing parameters to adapt to different production needs and to accommodate electrode tabs of different sizes, thereby improving production efficiency; at the same time, the device is easy to assemble and disassemble, and can be quickly disassembled and used on battery production lines in different locations, reducing increased production costs and changeover time; furthermore, the device can also adjust the distance between the main roller and the pressure roller to accommodate different electrode thicknesses, improving production flexibility.
[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of the movable tab smoothing device according to an embodiment of the present invention;
[0025] Figure 2 for Figure 1 Side view;
[0026] Figure 3 for Figure 1 Top view.
[0027] In the picture:
[0028] 1. Battery cell; 2. Electrode tab; 3. Pressure roller; 4. Main roller; 5. Fixing base; 6. Sliding rod; 7. Sliding block; 8. Fastening nut; 9. Fastening screw. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0030] like Figure 1-3 As shown, this embodiment proposes a movable tab smoothing device for smoothing the tabs 2 of the battery cell 1, comprising:
[0031] The smoothing mechanism includes at least one smoothing roller group, each smoothing roller group slides above the battery cell 1 through a corresponding sliding mechanism, and each smoothing roller group includes a pressure roller 3, which flattens the electrode tab 2 by rolling pressure when rotating.
[0032] The main roller 4 is located below the battery cell and is detachably mounted on the two fixed seats 5 on both sides. The main roller 4 can move along the height direction of the fixed seat 5 and be fixed by the fixing parts to adjust the distance between the main roller 4 and the pressure roller 3, thereby adapting to electrode sheets of different thicknesses.
[0033] Specifically, the fixing component is a fastening screw 9, and the fixing seat 5 has multiple fixing holes in the height direction. The main roller 4 is fixed to each fixing hole at a certain height by the fastening screw 9 to adjust the height of the main roller 4 and thus adjust the distance between it and the pressure roller 3. The battery cell electrode roll is conveyed between the main roller 4 and the pressure roller 3. First, the pressure roller 3 is moved to the position corresponding to the electrode tab 2 of the battery cell 1 by the sliding mechanism. Then, the height of the main roller 4 is adjusted by the fastening screw and each fixing hole, thereby adjusting the distance between it and the pressure roller 3 so that the pressure roller 3 can make close contact with the electrode tab 2. During the movement of the battery cell electrode roll, as the pressure roller 3 rotates, the pressure between the pressure roller 3 and the main roller 4 flattens the electrode tab 2, reducing the risk of folding, wrinkling or cracking.
[0034] Thus, the sliding mechanism allows for rapid adjustment of the spacing between each smoothing roller group, enabling quick and accurate adjustment of smoothing parameters to adapt to different production needs and to accommodate different sizes of tabs, thereby improving production efficiency. Simultaneously, the device is easy to assemble and disassemble, allowing for quick installation on battery production lines in different locations, reducing increased production costs and changeover time. Furthermore, the device can adjust the distance between the main roller and the pressure roller to accommodate different electrode thicknesses and reduce film damage, enhancing production flexibility.
[0035] Furthermore, such as Figure 1 and Figure 3 As shown, the sliding mechanism includes:
[0036] The sliding rod 6 is installed above the cell conveying line and parallel to the axis of the main roller 4;
[0037] The slider 7 slides on the sliding rod 6, and its lower end is rotatably connected to the end of the pressure roller 3. The pressure roller 3 is set parallel to the main roller 4.
[0038] By sliding each slider 7, the pressure roller 3 corresponding to each slider 7 is driven to slide, thereby adjusting the distance between each smoothing roller group.
[0039] Furthermore, such as Figure 3 As shown, it also includes a limiting member for limiting the slider on the sliding rod 6, and the limiting member is a fastening nut 9.
[0040] Thus, by sliding the slider 7 along the sliding rod 6, the pressure roller 3 is driven to slide, thereby adjusting the position of the smoothing roller assembly to adapt to the smoothing work of different sized tabs. After adjusting the position of the smoothing roller assembly according to the size of the tab, the position of the slider is then locked by the fastening nut 8.
[0041] The sliding of slider 7 on sliding rod 6 can be adjusted by manual drive, or by electric or pneumatic drive. The specific drive structure can be referred to the existing structure, and will not be repeated in this article.
[0042] It should be noted that the rotation of the pressure roller 3 can be driven manually or electrically. For example, the movement of the battery electrode roll will drive the pressure roller to rotate and extend outward, or the pressure roller can be driven to rotate by a motor. For specific drive structures, please refer to existing structures. This article will not repeat the details.
[0043] In this embodiment, the outer surface of the pressure roller 3 undergoes a special treatment to form a smooth surface. Specifically, the special treatment is mirror polishing. This reduces roughness, improves the smoothing effect, and thus improves battery performance and lifespan.
[0044] Furthermore, the surface of the main roller 4 is provided with outwardly extending threads from the center of the roller to both sides, and the surface of the main roller 4 is chrome-plated to reduce friction with the electrode coil area and reduce film surface defects.
[0045] In summary, the main roller 4 and pressure roller 3 are cylindrical. The sliding of the smoothing roller assembly allows them to make close contact with the electrode tabs, flattening the tabs 2 through rolling pressure and reducing the risk of folding, wrinkling, or cracking. The spacing between the various smoothing roller assemblies and the relative distance between the pressure roller 3 and the main roller 4 are key factors affecting the smoothing effect. By adjusting these parameters, precise control of the electrode tabs can be achieved. The spacing between the various smoothing roller assemblies can be dynamically adjusted according to the thickness and material of the electrode tabs through a sliding structure to ensure that the pressure of the pressure roller 3 on the electrode tabs 2 is evenly distributed, avoiding damage caused by local overpressure or underpressure. In addition, the structural design of the sliding rod 6 and the slider 7 working together ensures that the roller assembly can move flexibly in the lateral direction (axial direction of the sliding rod), further improving the flexibility of adjustment. The smoothing roller assembly can perform meticulous smoothing treatment on the electrode tabs. In actual operation, the spacing between each smoothing roller group and the relative distance between the pressure roller 3 and the main roller 4 can be adjusted flexibly and precisely according to specific production needs, ensuring that the smoothing process can achieve the best smoothing effect for different types of tabs, thereby effectively improving the flatness and quality of the tabs.
[0046] It should be noted that if each drive in this embodiment is electrically or pneumatically driven, it may also include a control mechanism. The control mechanism can be communicatively connected to each component to facilitate the control of the actions of each component. The specific structure of the control mechanism can refer to the existing structure, and will not be repeated in this article.
[0047] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0049] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A movable tab smoothing device for smoothing the tabs of a battery cell, characterized in that, include: The smoothing mechanism includes at least one smoothing roller assembly, each smoothing roller assembly sliding above the battery cell via a corresponding sliding mechanism, and each smoothing roller assembly includes a pressure roller, which flattens the electrode tab by rolling pressure when rotating. The main roller is located below the battery cell and is detachably mounted on two fixed seats on both sides. The main roller can move along the height direction of the fixed seat and be fixed by a fixing member to adjust the distance between the main roller and the pressure roller, thereby adapting to electrode sheets of different thicknesses.
2. The movable tab smoothing device according to claim 1, characterized in that, The sliding mechanism includes: A sliding rod is installed above the cell conveying line and parallel to the axis of the main roller; A slider slides on the sliding rod, and its lower end is rotatably connected to the end of the pressure roller. The pressure roller is arranged parallel to the main roller. By sliding each of the sliders, the pressure rollers corresponding to each slider are slid, thereby adjusting the spacing between the smoothing roller sets.
3. The movable tab smoothing device according to claim 2, characterized in that, It also includes a limiting member for limiting the slider on the sliding rod, the limiting member being a fastening nut.
4. The movable tab smoothing device according to claim 1, characterized in that, The fixing component is a fastening screw, and the fixing seat has multiple fixing holes in the height direction. The main roller is fixed to each of the fixing holes at different heights by the fastening screws, so as to adjust the height of the main roller and thus adjust the distance between it and the pressure roller.
5. The movable tab smoothing device according to claim 1, characterized in that, The outer surface of the pressure roller is specially treated to form a smooth surface.
6. The movable tab smoothing device according to claim 5, characterized in that, The special treatment is set to mirror polishing.
7. The movable tab smoothing device according to claim 1, characterized in that, The surface of the main roller is provided with an extended thread from the center of the roller to both sides.
8. The movable tab smoothing device according to claim 7, characterized in that, The main roller surface is chrome plated.