Cylindrical battery production line

Abstract

The utility model relates to the technical field of cylindrical battery production discloses a cylindrical battery production line and cylindrical battery core reversing device. Among them, cylindrical battery core reversing device includes conveying unit and reversing unit, conveying unit is used for conveying vertical place's cylindrical battery core along the direction of conveyance, and the upper end of cylindrical battery core is provided with the structure of avoiding, and reversing unit includes reversing module and detection piece, and detection piece can obtain the position of structure of avoiding, and reversing module includes the clamping assembly and rotating piece of communication connection with detection piece, and clamping assembly can clamp the circumferential wall of cylindrical battery core, and rotating piece can drive clamping assembly to rotate to make structure of avoiding rotate the preset angle relative to the direction of conveying unit's conveyance. The cylindrical battery core reversing device of the utility model can be used for adjusting the circumferential position of cylindrical battery core, and is convenient for subsequent step's processing.

Description

Technical Field

[0001] This utility model relates to the field of cylindrical battery production technology, and in particular to a cylindrical cell commutation device and a cylindrical battery production line. Background Technology

[0002] Adjacent cylindrical battery cells need to be welded together using a connecting tab to achieve electrical continuity. Since cylindrical battery cells typically have an explosion-proof valve at their upper end, this valve must be avoided when welding adjacent cells together. However, in existing technology, the circumferential position of the cylindrical battery cells is unpredictable in the step preceding welding, which means there's a chance the connecting tab might be welded onto the explosion-proof valve, resulting in defective products and reduced yield.

[0003] Therefore, there is an urgent need for a cylindrical cell commutation device and a cylindrical battery production line to solve the above problems. Utility Model Content

[0004] Based on the above, one of the objectives of this utility model is to provide a cylindrical battery cell commutation device for adjusting the circumferential position of the cylindrical battery cell, which facilitates subsequent processing steps.

[0005] To achieve the above objectives, firstly, the present invention adopts the following technical solution:

[0006] Cylindrical cell commutation device, including:

[0007] A conveying unit is used to convey vertically placed cylindrical battery cells along the conveying direction, wherein the upper end of the cylindrical battery cell is provided with a clearance structure.

[0008] The reversing unit includes a reversing module and a detection element. The detection element can acquire the position of the avoidance structure. The reversing module includes a clamping component and a rotating component that are communicatively connected to the detection element. The clamping component can clamp the outer peripheral wall of the cylindrical battery cell, and the rotating component can drive the clamping component to rotate so that the avoidance structure rotates by a preset angle relative to the conveying direction of the conveying unit.

[0009] The beneficial effects of the above technical solution are as follows:

[0010] By setting up a conveying unit to transport vertically placed cylindrical battery cells along the conveying direction, and because the upper end of the cylindrical battery cell is equipped with a clearance structure, the cylindrical battery cell is placed vertically during the conveying process. Simultaneously, the cylindrical battery cell reversing device is also equipped with a reversing unit, which is used to rotate the cylindrical battery cell on the conveying unit by a preset angle to ensure that the clearance structure of the cylindrical battery cell is in a position that does not interfere with subsequent processes. Specifically, the detection component of the reversing unit can obtain the position of the clearance structure. Since the clamping component and rotating component of the reversing unit are communicatively connected to the detection component, they can clamp the outer peripheral wall of the cylindrical battery cell and rotate the cylindrical battery cell, thereby rotating the clearance structure to the preset position to avoid interference with subsequent processes and ensure the yield rate of each process.

[0011] The second objective of this invention is to provide a cylindrical battery production line with a higher yield rate.

[0012] To achieve the above objectives, in a second aspect, the present invention adopts the following technical solution:

[0013] A cylindrical battery production line, including the cylindrical cell commutation device described in any of the above schemes.

[0014] The beneficial effects of the above technical solution are as follows:

[0015] The cylindrical battery production line is equipped with the aforementioned cylindrical cell reversing device, which can be used to adjust the circumferential position of the cylindrical cell, so that the avoidance structure of the cylindrical cell will not interfere with the processing of subsequent steps, thereby improving the yield of cylindrical batteries. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the cylindrical battery cell commutation device provided in a specific embodiment of this utility model;

[0018] Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle;

[0019] Figure 3 This is a front view of the cylindrical cell commutation device provided in a specific embodiment of this utility model;

[0020] Figure 4This is a top view of the cylindrical battery cell commutation device provided in a specific embodiment of this utility model.

[0021] In the picture:

[0022] 10. Cylindrical battery cell; 11. Avoidance structure;

[0023] 100. Conveying unit; 110. Cup holder; 111. Placement trough; 120. Conveyor belt; 130. Baffle;

[0024] 200. Reversing unit; 210. Reversing module; 211. Clamping assembly; 2111. Gripper; 212. Rotating component; 220. Detection component;

[0025] 300. Drive unit; 310. Lifting drive assembly; 311. Lifting end; 320. Moving drive assembly; 321. Moving end;

[0026] 400. Positioning unit; 410. Positioning plate; 420. Buffer pad; 421. Positioning groove;

[0027] 500. Scanning unit; 510. Barcode scanner; 520. Horizontal adjustment component; 530. Vertical adjustment component. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals 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 intended to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0030] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and connections within two components or interactions between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] A cylindrical cell is a miniaturized battery unit encapsulated in a cylindrical metal casing, with an internal wound structure (comprising a positive electrode, negative electrode, separator, and electrolyte) for storing and releasing electrochemical energy. It is one of the earliest industrialized and most technologically mature types of lithium-ion batteries among the three main types (cylindrical, prismatic, and pouch). Essentially, the cylindrical cell has a cylindrical casing with an internal cylindrical cavity. The casing material can be aluminum, aluminum alloy, or a composite metal material. In the assembly of lithium-ion battery packs (such as consumer electronics, energy storage, and power battery packs), two cylindrical cells are welded together using connecting tabs to achieve "series / parallel connection." Its core function is to establish a stable current path to meet the voltage and capacity requirements of different scenarios.

[0034] When a cylindrical battery cell experiences abnormal charging or discharging (such as overcharging, short circuit, or high temperature), a violent chemical reaction occurs inside, producing a large amount of gas (such as CO2, CO, H2, CH4, etc.), causing a sharp increase in internal pressure (normal pressure ≈ 0.1 MPa, which can rise to 1 MPa-3 MPa under abnormal conditions). Therefore, explosion-proof valves are usually installed at the ends of cylindrical battery cells. An explosion-proof valve is a component or part that can be actuated to release internal pressure or temperature when the internal pressure or temperature of a battery cell reaches a predetermined threshold. During battery use, the explosion-proof valve is mainly used to prevent excessive pressure rise inside the battery, which could cause deformation or explosion, by allowing gas to escape and reducing the internal pressure. The core function of the explosion-proof valve is controllable pressure relief. It opens under specific pressure through a pre-designed weak structure to prevent the cylindrical battery cell from exploding due to excessive pressure, while also preventing external moisture / impurities from entering. The materials used for explosion-proof valves are not limited, including but not limited to aluminum, steel, alloys, etc. The shape of the explosion-proof valve is not limited; it can be square, oblong, elliptical, racetrack-shaped, etc. The type of explosion-proof valve is also not limited; for example, a notched explosion-proof valve can be formed by stamping or laser etching. In summary, the position of the explosion-proof valve at the end of the cylindrical battery cell affects the operation of the cylindrical battery cell welding connector.

[0035] like Figures 1-4 As shown, this embodiment provides a cylindrical battery cell reversing device, which includes a conveying unit 100 and a reversing unit 200. The conveying unit 100 is used to convey vertically placed cylindrical batteries 10 along the conveying direction. An avoidance structure 11 is provided at the upper end of the cylindrical battery cell 10. The reversing unit 200 includes a reversing module 210 and a detection element 220. The detection element 220 can obtain the position of the avoidance structure 11. The reversing module 210 includes a clamping assembly 211 and a rotating element 212 that are communicatively connected to the detection element 220. The clamping assembly 211 can clamp the outer peripheral wall of the cylindrical battery cell 10, and the rotating element 212 can drive the clamping assembly 211 to rotate so that the avoidance structure 11 rotates by a preset angle relative to the conveying direction of the conveying unit 100.

[0036] By setting up a conveying unit 100, vertically placed cylindrical battery cells 10 are conveyed along the conveying direction. Since the upper end of the cylindrical battery cell 10 is provided with a clearance structure 11, the cylindrical battery cell 10 is placed vertically during the conveying process. At the same time, the cylindrical battery cell reversing device is also provided with a reversing unit 200. The reversing unit 200 is used to rotate the cylindrical battery cell 10 on the conveying unit 100 by a preset angle to ensure that the clearance structure 11 of the cylindrical battery cell 10 is in a position that does not interfere with subsequent processes. Specifically, the detection element 220 of the reversing unit 200 can obtain the position of the clearance structure 11. Since the clamping component 211 and the rotating component 212 of the reversing unit 200 are both communicatively connected to the detection element 220, the outer peripheral wall of the cylindrical battery cell 10 can be clamped and the cylindrical battery cell 10 rotated, thereby rotating the clearance structure 11 to a preset position to avoid interference with subsequent processes and ensure the yield rate of each process.

[0037] It is worth noting that the upper end of the cylindrical battery cell 10 is one axial end of the cylindrical battery cell 10, that is, one axial end of the cylindrical battery cell 10 is provided with a clearance structure 11. When the above-mentioned cylindrical battery cell reversing device is used for conveying and reversing, the end with the clearance structure 11 is placed upwards to facilitate detection by the detection element 220. In addition, the rotation angle range of the rotating element 212 driving the cylindrical battery cell 10 to rotate is set to 5°-90°, that is, the clearance structure 11 rotates at a preset angle of 5°-90° relative to the conveying direction of the conveying unit 100. For example, it can rotate 5°, 15°, 30°, 45°, 60°, 75°, 90°, etc., or satisfy any of the above-defined angles.

[0038] For example, the detection element 220 is configured as a CCD camera, and the rotating element 212 is configured as a rotary cylinder or rotary motor. To achieve communication connectivity, the cylindrical cell commutation device also includes a control unit, and each detection element and actuating element of the cylindrical cell commutation device is communicatively connected to the control unit. The control unit stores a control program; when the control program is executed, the cylindrical cell commutation device performs corresponding actions. The control program's control of each detection element and actuating element is prior art and will not be described further here. Additionally, the clearance structure 11 is an explosion-proof valve; that is, the detection element 220 can detect the position of the explosion-proof valve, thereby enabling the clamping assembly 211 and the rotating element 212 to clamp and rotate the cylindrical cell 10, ensuring that the adjusted cylindrical cell 10 is not interfered with by the explosion-proof valve during subsequent welding of connecting pieces.

[0039] Specifically, the conveying unit 100 includes a conveyor belt 120 extending along the conveying direction, on which the cylindrical battery cell 10 is vertically placed and conveyed. Optionally, baffles 130 are provided on both sides of the conveyor belt 120 to limit the movement of the cylindrical battery cell 10 and prevent it from falling off the conveyor belt 120 during conveying. The conveyor belt 120 may be made of rubber to increase friction with the cylindrical battery cell 10; alternatively, it may be powered by a motor.

[0040] Preferably, the conveying unit 100 further includes a cup 110, which is provided with a placement groove 111. The placement groove 111 is used to accommodate at least a portion of the lower part of the cylindrical battery cell 10, that is, at least a portion of the lower part of the cylindrical battery cell 10 is placed in the placement groove 111, while the upper part is located outside the cup 110. By providing the cup 110, the stability and reliability of the cylindrical battery cell 10 being conveyed on the conveyor belt 120 are further improved; in addition, by providing the cup 110, wear on the cylindrical battery cell 10 during the conveying process can also be reduced, thus reducing conveying losses.

[0041] Furthermore, the cylindrical battery cell commutation device also includes a positioning unit 400, which is located on the side of the conveying unit 100 along the conveying direction and is used to fix multiple cylindrical batteries 10. By setting the positioning unit 400 to fix the cylindrical batteries 10 relative to the conveying unit 100, the commutation unit 200 can easily detect and commutate the fixed cylindrical batteries 10, reducing the difficulty and accuracy of detection and commutation. When the cylindrical batteries 10 are conveyed through the cup 110, the positioning unit 400 can fix them to the cup 110, avoiding damage to the cylindrical batteries 10 caused by directly fixing them.

[0042] In this embodiment, the cylindrical battery cell commutation device is further provided with a drive unit 300, which includes a lifting drive assembly 310 and a commutation unit 200 disposed at the lifting end 311 of the lifting drive assembly 310. When the commutation unit 200 needs to detect and commutate the cylindrical battery cell 10, the lifting drive assembly 310 can drive the commutation module 210 to descend vertically, so that the cylindrical battery cell 10 enters the detection range of the detection component 220 and simultaneously enters the clamping range of the clamping component 211. After the clamping component 211 completes clamping the cylindrical battery cell 10, the lifting drive assembly 310 can drive the commutation unit 200 to rise, which helps to avoid wear between the cylindrical battery cell 10 and the cup 110 during the rotation of the clamping component 212 and the cylindrical battery cell 10. After rotation is complete, the lifting drive assembly 310 can drive the commutation unit 200 to descend, and put the rotated cylindrical cell 10 back into the cup 110.

[0043] It is worth noting that the positioning unit 400 can position multiple cup holders 110 and cylindrical battery cells 10 simultaneously. Preferably, to enable the reversal of the multiple positioned cylindrical battery cells 10, the drive unit 300 is further provided with a moving drive assembly 320, and a lifting drive assembly 310 is disposed at the moving end 321 of the moving drive assembly 320. After the reversing unit 200 completes the reversal of one of the multiple positioned cylindrical battery cells 10, the moving drive assembly 320 drives the lifting drive assembly 310 to move a corresponding distance along the conveying direction, thereby enabling the reversal operation of the next positioned cylindrical battery cell 10. In conjunction with the positioning unit 400, the reversal of multiple cylindrical battery cells 10 can be completed in one positioning operation. For example, the lifting drive assembly 310 and the moving drive assembly 320 can each employ a linear module based on ball screw or belt drive. This linear module typically adopts an integrated design, combining the ball screw and U-shaped linear guide rail into a single composite component. The slide block simultaneously serves as the drive nut for the ball screw and the guide slider for the linear guide rail. When the drive motor starts, it drives the ball screw to rotate via a coupling or direct drive, thereby driving the slider to perform precise linear motion along the guide rail. This design offers advantages such as small installation size, high precision, convenient assembly, and easy maintenance. In other embodiments, the lifting drive assembly 310 and the moving drive assembly 320 can also be implemented using a multi-degree-of-freedom robotic arm, which is not specifically limited here.

[0044] The working process of the above-mentioned cylindrical cell commutation device is as follows: The cylindrical cell 10 is placed in the cup 110, and the cup 110 is placed on the conveyor belt 120. Both the cup 110 and the cylindrical cell 10 are conveyed along the conveying direction. After being conveyed to the positioning unit 400, the positioning unit 400 fixes multiple cups 110 connected to the cylindrical cells 10 at one time. The lifting drive assembly 310 drives the commutation unit 200 to descend. At this time, the clamping assembly 211 can clamp one of the cylindrical cells 10, and the detection component 220 can detect the cylindrical cell 10. Then, the lifting drive assembly 310 can drive the commutation unit 200 to rise, and the rotating component 212 drives the clamping assembly 211 to rotate. Finally, the lifting drive assembly 310 can drive the commutation unit 200 to descend, and the clamping assembly 211 puts the commutated cylindrical cell 10 back into the cup 110. The moving drive assembly 320 drives the lifting drive assembly 310 and the positioning unit 400 to move along the conveying direction, and repeats the above actions to sequentially turn the cylindrical battery cells 10 positioned by the positioning unit 400. After all the turning is completed, the positioning unit 400 cancels the positioning of the multiple cylindrical battery cells 10, and the conveying unit 100 continues to convey the reversed cylindrical battery cells 10 to the next workstation. At this time, the avoidance structures 11 of the cylindrical battery cells 10 are all in a position that does not interfere with subsequent processes.

[0045] As an optional solution for the cylindrical battery cell commutation device, to achieve the clamping assembly 211 clamping the cylindrical battery cell 10, the clamping assembly 211 includes two grippers 2111. The two grippers 2111 can move towards and away from each other. When the two grippers 2111 move towards each other, they can be used to clamp the cylindrical battery cell 10. At this time, the rotating member 212 can drive the two grippers 2111 to rotate, thereby realizing the rotational commutation of the cylindrical wire core. After the commutation is completed, the two grippers 2111 can move away from each other to put the cylindrical battery cell 10 down. In other embodiments, the clamping assembly 211 may also be provided with multiple grippers 2111 to improve the clamping stability, but this will increase the complexity of the structure. Exemplarily, the grippers 2111 can be powered by a cylinder or a motor, without specific limitations.

[0046] Optionally, adjacent cylindrical cells 10 are spaced apart along the conveying direction, with a spacing of not less than 72mm. By limiting the minimum distance between adjacent cylindrical cells 10, space is provided for the grippers 2111 to clamp and rotate the cylindrical cells 10. It is understood that the above distance should not be set too large to avoid excessively occupying the space of the conveying unit 100. When the spacing between adjacent cylindrical cells 10 is too small, the space reserved for the grippers 2111 to clamp and rotate the cylindrical cells 10 is too small, increasing the risk of the grippers 2111 damaging the cylindrical cells 10 or failing to clamp or rotate them. When the spacing between adjacent cylindrical cells 10 is too large, although reliable clamping and rotation can be guaranteed, it will excessively occupy the space of the conveying unit 100, resulting in a reduction in the conveying efficiency of the conveying unit 100, and thus reducing the production efficiency of the entire cylindrical cell commutation device and even the cylindrical battery production line. For example, the spacing between adjacent cylindrical cells 10 can be set to 72mm, 72.5mm, 73mm, 73.5mm, 74mm, 75mm, 78mm, 80mm, 85mm, 90mm, 95mm or 100mm, etc.

[0047] Furthermore, the thickness of the gripper 2111 is no greater than 10mm. Limiting the thickness of the gripper 2111 helps prevent it from occupying excessive space. It is understood that when the thickness of the gripper 2111 is too small, the clamping force of the gripper 2111 decreases accordingly. Therefore, the aforementioned thickness should not be set too low to ensure that the gripper 2111 has reliable clamping force. When the thickness of the gripper 2111 is too large, although the clamping force can be guaranteed, an excessively thick gripper 2111 placed between two adjacent cylindrical cells 10 will increase the possibility of collision with the cylindrical cells 10. For example, the gripper 2111 can be set to 10mm, 9.5mm, 9mm, 8.5mm, 8mm, 7.5mm, 7mm, 6mm, 5mm, or 4mm, etc., as long as the specific size meets the clamping function of the gripper 2111 for the cylindrical cells 10.

[0048] Preferably, the commutation unit 200 is provided with two or more commutation modules 210, and also with the same number of detection elements 220 as the commutation modules 210. One detection element 220 corresponds to one commutation module 210, resulting in more targeted detection. The two or more commutation modules 210 are spaced apart along the conveying direction, allowing the drive unit 300 to simultaneously drive the two or more commutation modules 210 to rise or move. Each of the two or more commutation modules 210 can perform detection and commutation for different cylindrical cells 10, resulting in higher efficiency.

[0049] For example, the positioning unit 400 fixes multiple cylindrical battery cells 10. When the number of cylindrical battery cells 10 fixed by the positioning unit 400 at one time is too small, the efficiency is too low; when the number of cylindrical battery cells 10 fixed by the positioning unit 400 at one time is too large, it increases the size and structural complexity of the commutation unit 200, and also increases the cost. Optionally, the commutation unit 200 is provided with two commutation modules 210, and one positioning unit 400 can fix eight cylindrical battery cells 10. Or in other embodiments, the positioning unit 400 can also fix seven or nine cylindrical battery cells 10, which is not specifically limited here.

[0050] In this embodiment, the spacing between adjacent commutation modules 210 along the conveying direction is adjustable to accommodate cylindrical cells 10 of different diameters, thereby improving the versatility of the cylindrical cell commutation device.

[0051] To fix the cylindrical battery cell 10 relative to the conveying unit 100, the positioning unit 400 includes two positioning plates 410 arranged opposite each other, respectively located on both sides of the conveying unit 100. When it is necessary to fix the cylindrical battery cell 10, the two positioning plates 410 move closer to each other and cooperate with the cup 110 for fixation, thereby fixing the cup 110. The positioning plates 410 can be driven by a cylinder or motor in conjunction with a guide rail, wherein the cylinder or motor provides power and the guide rail is used for guidance.

[0052] Specifically, a positioning groove 421 is provided on the side of the positioning plates 410 that are close to each other. The positioning groove 421 can be adapted to the outer wall of the cup 110. That is, when the two positioning plates 410 are close to each other, the positioning groove 421 abuts against the outer wall of the cup 110, thereby fixing the cup 110. By providing the positioning groove 421, on the one hand, the contact area between the positioning plate 410 and the cup 110 can be increased, reducing the damage to the cylindrical cell 10 caused by stress concentration; on the other hand, the positioning groove 421 can also adjust the spacing between the multiple cylindrical cells 10, making the spacing between the multiple cylindrical cells 10 more uniform, which facilitates subsequent reversing operations.

[0053] Furthermore, the positioning unit 400 is also provided with a buffer pad 420, which is disposed on the side of the positioning plates 410 that are close to each other, and a positioning groove 421 is disposed on the buffer pad 420. It is understood that the buffer pad 420 increases the cushioning effect of the positioning plates 410 during the fixing of the cylindrical battery cell 10, reducing damage to the battery cell caused by fixing. Preferably, the buffer pad 420 is bonded or snapped onto the positioning plates 410, and the buffer pad 420 is replaceable. Additionally, the positioning grooves 421 on different buffer pads 420 can have different curvatures and spacings to accommodate different models of cylindrical battery cells 10 and different sizes of clamps 2111.

[0054] To further improve the efficiency of the cylindrical cell commutation device, two or more positioning units 400 are provided, arranged sequentially along the conveying direction. The two positioning units 400 can be controlled separately or jointly. Those skilled in the art can set the settings according to the production cycle to increase the time for fixing the cylindrical cell 10 or the number of cylindrical cells 10 positioned at one time.

[0055] As an optional solution for the cylindrical cell commutation device, a feature code is provided on the upper end of the cylindrical cell 10, and the feature code stores relevant parameters of the cylindrical cell 10. Correspondingly, the cylindrical cell commutation device also includes a barcode scanning unit 500, which is located upstream of the commutation unit 200 and can scan the feature code. That is, the feature code of the cylindrical cell 10 can be obtained before commutation, which facilitates subsequent traceability. For example, the feature code can be a QR code or a barcode, which can be affixed to the upper end of the cylindrical cell 10 by pasting or etching.

[0056] It is worth noting that placing the scanning unit 500 upstream of the commutation unit 200 helps reduce interference between the scanning unit 500 and the commutation unit 200. In other embodiments, the scanning unit 500 can also be placed downstream of the commutation unit 200, so that the feature codes of the cylindrical cells 10 after commutation are all located at the same angle, resulting in a higher scanning accuracy.

[0057] For example, the scanning unit 500 includes a barcode scanner 510, which is positioned above and facing the conveying unit 100. The barcode scanner 510 scans the feature codes. In this embodiment, the scanning angle of the barcode scanner 510 covers at least two cylindrical battery cells 10, which helps to improve scanning efficiency.

[0058] Preferably, the scanning unit 500 further includes a horizontal adjustment component 520 and a vertical adjustment component 530. By setting the horizontal adjustment component 520 and the vertical adjustment component 530, the horizontal and vertical positions of the barcode scanner 510 are adjusted respectively, so that the barcode scanner 510 can be positioned at a suitable scanning position relative to the conveying unit 100, thereby improving the success rate and accuracy of scanning. Specifically, the barcode scanner 510 is disposed at the horizontal adjustment end of the horizontal adjustment component 520, which adjusts the position of the barcode scanner 510 in a direction perpendicular to the conveying direction; the horizontal adjustment component 520 is disposed at the vertical adjustment end of the vertical adjustment component 530, which adjusts the position of the horizontal adjustment component 520 in the vertical direction. For example, the horizontal adjustment component 520 and the vertical adjustment component 530 can be adjusted manually by using an adjustment rod and an adjustment block, and a locking element can be provided to lock the position of the adjustment rod and the adjustment block; or, the adjustment can be achieved by an automated adjustment method, which requires less manual intervention and has higher precision. Those skilled in the art can set it according to actual needs, and no specific limitation is made here.

[0059] This embodiment also discloses a cylindrical battery production line, including the cylindrical cell commutation device as described in any of the above embodiments. The cylindrical battery production line is equipped with the aforementioned cylindrical cell commutation device, which can be used to adjust the circumferential position of the cylindrical cell 10, ensuring that the clearance structure 11 of the cylindrical cell 10 does not interfere with subsequent processing steps, thereby improving the yield of the cylindrical battery.

[0060] For example, the cylindrical battery production line also includes a welding device located downstream of the cylindrical cell commutation device. The welding device can be used to weld connecting pieces. Since the cylindrical cells 10 that have passed through the cylindrical cell commutation device have all been rotated and commutated, the avoidance structure 11 will not interfere with the welding of the connecting pieces, thereby improving the accuracy and success rate of welding, effectively reducing the risk of welding failure, and thus improving the yield of the cylindrical battery production line.

[0061] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A cylindrical cell commutation device, characterized in that, include: A conveying unit (100) is used to convey vertically placed cylindrical battery cells (10) along the conveying direction, wherein the upper end of the cylindrical battery cell (10) is provided with a clearance structure (11); The reversing unit (200) includes a reversing module (210) and a detection element (220). The detection element (220) can obtain the position of the avoidance structure (11). The reversing module (210) includes a clamping component (211) and a rotating component (212) that are communicatively connected to the detection element (220). The clamping component (211) can clamp the outer peripheral wall of the cylindrical cell (10). The rotating component (212) can drive the clamping component (211) to rotate so that the avoidance structure (11) rotates by a preset angle relative to the conveying direction of the conveying unit (100).

2. The cylindrical cell commutation device according to claim 1, characterized in that, The cylindrical cell commutation device is further provided with a drive unit (300), the drive unit (300) includes a lifting drive assembly (310), the commutation unit (200) is disposed at the lifting end (311) of the lifting drive assembly (310), and the lifting drive assembly (310) is used to drive the commutation module (210) to move up and down in the vertical direction.

3. The cylindrical cell commutation device according to claim 2, characterized in that, The drive unit (300) is further provided with a moving drive component (320), and the lifting drive component (310) is disposed at the moving end (321) of the moving drive component (320). The moving drive component (320) is used to drive the lifting drive component (310) to move along the conveying direction.

4. The cylindrical cell commutation device according to claim 1, characterized in that, The clamping assembly (211) includes two jaws (2111), which can move towards and away from each other. When moving towards each other, they can be used to clamp the cylindrical battery cell (10). The rotating member (212) is used to drive the two jaws (2111) to rotate.

5. The cylindrical cell commutation device according to claim 4, characterized in that, The adjacent cylindrical cells (10) are spaced apart along the conveying direction, and the spacing is not less than 72mm.

6. The cylindrical cell commutation device according to claim 4, characterized in that, The thickness of the gripper (2111) is no more than 10 mm.

7. The cylindrical cell commutation device according to claim 1, characterized in that, The cylindrical cell commutation device is further provided with a positioning unit (400), which is located on the side of the conveying unit (100) along the conveying direction and is used to fix multiple cylindrical cells (10).

8. The cylindrical cell commutation device according to claim 7, characterized in that, The reversing unit (200) is provided with two or more reversing modules (210), which are spaced apart along the conveying direction, and the interval between adjacent reversing modules (210) along the conveying direction is adjustable.

9. The cylindrical cell commutation device according to claim 7, characterized in that, There are two or more positioning units (400), and the two or more positioning units (400) are arranged sequentially along the conveying direction.

10. The cylindrical cell commutation device according to claim 7, characterized in that, The conveying unit (100) further includes a cup (110) with a placement groove (111) for accommodating at least a portion of the lower end of the cylindrical battery cell (10), and the positioning unit (400) for fixing the cup (110).

11. The cylindrical cell commutation device according to claim 10, characterized in that, The positioning unit (400) includes two positioning plates (410) arranged opposite to each other. The two positioning plates (410) are respectively arranged on both sides of the conveying unit (100) and can move close to the conveying unit (100) to fix the cup (110).

12. The cylindrical cell commutation device according to claim 11, characterized in that, The positioning plates (410) are provided with a positioning groove (421) on one side that is close to each other, and the positioning groove (421) is adapted to the outer wall of the cup (110).

13. The cylindrical cell commutation device according to claim 12, characterized in that, The positioning unit (400) is also provided with a buffer pad (420), which is located on one side of the positioning plates (410) that are close to each other, and the positioning groove (421) is located on the buffer pad (420).

14. The cylindrical cell commutation device according to claim 1, characterized in that, The avoidance structure (11) is an explosion-proof valve.

15. The cylindrical cell commutation device according to claim 1, characterized in that, The cylindrical cell commutation device further includes a barcode scanning unit (500), which is located upstream of the commutation unit (200). The upper end of the cylindrical cell (10) is provided with a feature code, and the barcode scanning unit (500) can scan the feature code.

16. The cylindrical cell commutation device according to claim 15, characterized in that, The scanning unit (500) includes a barcode scanner (510), which is positioned above and facing the conveying unit (100). The scanning angle of the barcode scanner (510) covers at least two of the cylindrical cells (10).

17. The cylindrical cell commutation device according to claim 16, characterized in that, The scanning unit (500) further includes: A horizontal adjustment assembly (520) is provided, wherein the barcode scanner (510) is disposed at the horizontal adjustment end of the horizontal adjustment assembly (520), and the horizontal adjustment assembly (520) is used to adjust the position of the barcode scanner (510) in a direction perpendicular to the conveying direction; A vertical adjustment component (530) is provided, wherein the horizontal adjustment component (520) is disposed at the vertical adjustment end of the vertical adjustment component (530), and the vertical adjustment component (530) is used to adjust the position of the horizontal adjustment component (520) in the vertical direction.

18. The cylindrical cell commutation device according to any one of claims 1-17, characterized in that, The conveying unit (100) includes a conveyor belt (120), and baffles (130) are provided on both sides of the conveyor belt (120).

19. A cylindrical battery production line, characterized in that, Includes the cylindrical cell commutation device as described in any one of claims 1-18.

20. The cylindrical battery production line according to claim 19, characterized in that, The cylindrical battery production line also includes a welding device, which is located downstream of the cylindrical cell commutation device.

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