Conveying apparatus and winding device

Abstract

A conveying apparatus. A conveying apparatus (100) is used for conveying a plurality of electrode sheets (200) formed by cutting. The conveying apparatus (100) comprises a plurality of conveying roller sets (10) and an offset mechanism (20); each conveying roller set (10) comprises at least one conveying roller (11), and each conveying roller (11) is used for conveying one electrode sheet (200); and the offset mechanism (20) is adapted to be connected to at least one electrode sheet (200), and in the width direction of the electrode sheet (200), the offset mechanism (20) is used for offsetting two adjacent electrode sheets (200) from each other. According to the conveying apparatus, the probability of mutual friction between two electrode sheets is reduced, so that damage, scratches or pollution of the surface of an electrode sheet is reduced, thus improving the quality and performance of a produced battery cell. Further provided is a winding device comprising the conveying apparatus.

Description

Conveying and winding equipment

[0001] Priority information

[0002] This application claims priority and benefits of patent application No. 202311229595.3 filed with the State Intellectual Property Office of China on September 22, 2023, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of battery manufacturing equipment, and in particular to a conveying device and a winding device. Background Art

[0004] During the battery manufacturing process, multiple electrode sheet lines are fed to a winding machine, where they are assembled into battery components such as battery cells. However, during the winding process, contact between adjacent electrode sheets often causes friction. This friction can damage, scratch, or contaminate the electrode sheet surface, thereby reducing the quality and performance of the resulting battery cells.

[0005] Summary of the Invention

[0006] The present application provides a conveying device and a winding device that can solve the problem of damage, scratches or contamination on the surface of the electrode sheets caused by contact and friction between adjacent electrode sheets during the winding process of multiple electrode sheets, thereby reducing the quality and performance of the produced battery cells.

[0007] The conveying device of the embodiment of the present application is used to convey a plurality of electrode pieces formed by segmentation, and the conveying device includes:

[0008] A plurality of conveying roller groups, each of which includes at least one conveying roller, and each of which is used to convey one of the pole pieces;

[0009] An offset mechanism is used to connect to at least one of the pole pieces, and along the width direction of the pole piece, the offset mechanism is used to offset two adjacent pole pieces from each other.

[0010] In the conveying device of the embodiment of the present application, the offset mechanism offsets the two adjacent pole sheets relative to each other along the width direction of the pole sheet, so that the two adjacent pole sheets can be separated from each other during the winding process, thereby reducing the probability of mutual friction between the two pole sheets, thereby reducing damage, scratches or contamination on the surface of the pole sheets, and thereby improving the quality and performance of the produced battery cells.

[0011] In some embodiments, the number of the pole pieces and the number of the conveying roller groups are both two, the two pole pieces are respectively a first pole piece and a second pole piece, the two conveying roller groups are respectively a first conveying roller group and a second conveying roller group, the first conveying roller group includes at least one first conveying roller, the first conveying roller is used to convey the first pole piece, and the second conveying roller group includes at least one second conveying roller, the second conveying roller is used to convey the second pole piece;

[0012] The offset mechanism is used to connect with the first pole piece and / or the second pole piece, and is used to offset the first pole piece and the second pole piece from each other along the width direction of the first pole piece.

[0013] In this way, since there are two electrode sheets and two conveyor roller sets, one for conveying the first electrode sheet and the other for conveying the second electrode sheet, this design allows for independent conveying of the first and second electrode sheets, preventing interference and mutual influence between the different electrode sheets. The offset mechanism can be used to precisely control the offset between the first and second electrode sheets. This design ensures the consistency of the electrode sheet position and size, improving the assembly accuracy and consistency of the battery cells.

[0014] In some embodiments, the offset mechanism includes at least one offset roller, which is connected to the first pole piece and / or the second pole piece, and the axial direction of the offset roller forms an angle with the axial direction of the first conveying roller and / or the second conveying roller, so that the first pole piece and the second pole piece are offset from each other along the width direction of the first pole piece.

[0015] In this way, the first pole piece and the second pole piece are offset from each other by forming an angle between the axial direction of the offset roller and the axial direction of the first conveying roller and / or the second conveying roller. This design can achieve precise offset of the pole pieces and control the offset amount. By adjusting the angle between the offset roller and the first conveying roller and / or the second conveying roller, the offset distance of the first pole piece and the second pole piece can be adjusted, thereby further ensuring the consistency of the position and size of the pole pieces.

[0016] In some embodiments, the offset roller includes a first offset roller and a second offset roller, the first offset roller is connected to the first pole piece, an axial direction of the first offset roller forms a first angle with an axial direction of the first conveying roller, and the first offset roller cooperates with the first conveying roller to convey the first pole piece;

[0017] The second offset roller is connected to the second pole piece. The axial direction of the second offset roller forms a second angle with the axial direction of the second conveying roller. The second offset roller cooperates with the second conveying roller to convey the second pole piece.

[0018] Thus, the design of the first and second offset rollers enables the separate conveyance of the first and second electrode pieces. This design makes the conveyance processes of the first and second electrode pieces independent of each other, avoiding interference and mutual influence between the different electrode pieces. Furthermore, the first and second offset rollers respectively cooperate with corresponding conveyor roller groups for conveyance, thereby independently controlling the offset process of the first and second electrode pieces. This design provides greater flexibility in offsetting, adapting to the production needs of electrode pieces of different sizes and types.

[0019] In some embodiments, the tilt direction of the first offset roller is opposite to the tilt direction of the second offset roller.

[0020] Because the first and second offset rollers are tilted in opposite directions, the first and second pole pieces can be offset from each other in the width direction in opposite directions. This design enables bidirectional offset, further increasing the flexibility and controllability of the offset. Furthermore, the distance between the first and second pole pieces is larger, effectively reducing the probability of friction between the first and second pole pieces.

[0021] In some embodiments, there are plural first conveying rollers and plural first offset rollers, and at least one first offset roller is provided between two adjacent first conveying rollers along the conveying direction of the first pole piece.

[0022] In this way, since there are multiple first conveyor rollers and first offset rollers, the first pole piece can be transported and offset at multiple locations. This design allows for more precise control of the conveying and offsetting of the first pole piece, further improving the accuracy and consistency of battery cell production. Providing multiple first conveyor rollers and first offset rollers can better accommodate the production needs of first pole pieces of varying sizes. First pole pieces of varying sizes can be transported and offset at different locations, providing greater flexibility.

[0023] In some embodiments, along the conveying direction of the first pole piece, a first offset roller is provided between two adjacent first conveying rollers; or,

[0024] Along the conveying direction of the first pole piece, all of the first offset rollers are arranged between two adjacent first conveying rollers.

[0025] In this way, by arranging an offset roller between two adjacent first conveying rollers, it is possible to achieve separate offsetting of the first pole pieces at different positions, ensuring the consistency of the position and size of the first pole pieces at different positions, and improving the assembly accuracy and consistency of the battery cells; by arranging all the first offset rollers between two adjacent first conveying rollers, it is possible to achieve continuous offsetting of the entire first pole piece area, ensuring the consistency of the position and size of the first pole piece in the entire width direction, and further improving the assembly accuracy and consistency of the battery cells.

[0026] In some embodiments, there are plural second conveying rollers and plural second offset rollers, and at least one second offset roller is provided between two adjacent second conveying rollers along the conveying direction of the second pole piece.

[0027] In this way, since multiple second conveyor rollers and second offset rollers are provided, multi-point conveyance and offsetting of the second pole piece can be achieved at different locations. This design allows for more precise control of the conveyance and offsetting of the second pole piece, further improving the accuracy and consistency of battery cell production. The provision of multiple second conveyor rollers and second offset rollers can better accommodate the production needs of second pole pieces of varying sizes. Second pole pieces of varying sizes can be conveyed and offset at different locations, providing greater flexibility.

[0028] In some embodiments, along the conveying direction of the second pole piece, a second offset roller is provided between two adjacent second conveying rollers; or,

[0029] Along the conveying direction of the second pole piece, all the second offset rollers are arranged between two adjacent second conveying rollers.

[0030] In this way, by arranging an offset roller between two adjacent second conveying rollers, the second pole pieces at different positions can be individually offset, ensuring the consistency of the position and size of the second pole pieces at different positions, and improving the assembly accuracy and consistency of the battery cells; by arranging all the second offset rollers between two adjacent second conveying rollers, continuous offset of the entire second pole piece area can be achieved, ensuring the consistency of the position and size of the second pole piece in the entire width direction, and further improving the assembly accuracy and consistency of the battery cells.

[0031] In some embodiments, the number of the first conveying roller and the first offset roller are both plural, all of the first offset rollers are at the same height, all of the first conveying rollers are at the same height, and the height of the first offset roller is higher than that of the first conveying roller; and / or,

[0032] There are multiple second conveying rollers and multiple second offset rollers, all of the second offset rollers are at the same height, all of the second conveying rollers are at the same height, and the height of the second offset roller is lower than that of the second conveying roller.

[0033] In this way, by arranging the first conveyor roller and the first offset roller, the first offset roller is higher than the first conveyor roller. Similarly, by arranging the second conveyor roller and the second offset roller, the second offset roller is lower than the second conveyor roller. This design allows for the conveyance and offsetting of pole pieces at different heights, providing greater flexibility.

[0034] Furthermore, the design of conveying and offsetting at different heights allows precise control of the offset of the pole pieces at different locations. By adjusting the height of the first and second offset rollers, the position and size consistency of the pole pieces is ensured, improving the assembly accuracy and consistency of the battery cells.

[0035] In some embodiments, the conveying device includes a back plate and an adjustment mechanism, the adjustment mechanism and the conveying roller group are both mounted on the back plate, the offset roller is mounted on the adjustment mechanism, and the adjustment mechanism is used to adjust the axial direction of the offset roller.

[0036] In this way, the backplate serves as the main component of the conveyor, with the adjustment mechanism and conveyor roller assembly mounted on it. This design simplifies the conveyor structure and improves assembly and maintenance convenience. Mounting the offset roller on the adjustment mechanism allows for more precise adjustment of the offset roller's position and axial direction, thereby achieving more accurate pole piece offset.

[0037] In some embodiments, the adjustment mechanism includes a mounting seat and a rotating shaft, the mounting seat is fixed to the back plate, the rotating shaft is rotatably provided on the mounting seat, the offset roller is fixedly connected to the rotating shaft, the offset roller can swing relative to the mounting seat through the rotating shaft, and the axial direction of the offset roller is approximately perpendicular to the axial direction of the rotating shaft.

[0038] In this way, through the combination of the rotating shaft and the mounting base, the offset roller can swing relative to the mounting base. This design allows for more flexible adjustment of the offset roller's offset. The mounting base is fixed to the backplate, providing a solid support structure that helps ensure the stability and reliability of the adjustment mechanism and the offset roller. The axial direction of the offset roller is roughly perpendicular to the axial direction of the rotating shaft, allowing the offset roller to swing vertically. This design allows for vertical offset of the pole piece, ensuring the consistency of the pole piece's position and size, and improving the assembly accuracy and consistency of the battery cells.

[0039] In some embodiments, the adjustment mechanism includes an adjustment component mounted on the mounting seat, wherein the adjustment component is connected to the offset roller and is used to adjust a swing angle of the offset roller relative to the mounting seat.

[0040] Thus, the adjustment assembly is mounted on the mounting base, providing a stable support structure, which helps to ensure the stability and reliability of the adjustment mechanism and the offset roller. By connecting the adjustment assembly to the offset roller, the swing angle of the offset roller relative to the mounting base can be adjusted.

[0041] In some embodiments, the adjustment assembly includes a first adjustment member and a second adjustment member, both of which are mounted on the mounting seat and abut against the offset roller, and both of the first adjustment member and the second adjustment member drive the offset roller to swing relative to the mounting seat during rotation relative to the mounting seat.

[0042] In this way, both the first and second adjusting members are mounted on the mounting base and abut the offset roller, providing a stable support structure and helping to ensure the stability and reliability of the adjustment mechanism and the offset roller. The combination of the first and second adjusting members enables precise adjustment of the offset roller's swing angle relative to the mounting base. The first adjusting member provides coarse adjustment, while the second adjusting member provides more detailed adjustment, resulting in more precise adjustment of the offset roller's offset angle.

[0043] In some embodiments, the adjustment mechanism further includes an indicator element connected to the rotating shaft, and the indicator element is used to indicate the swing angle of the offset roller.

[0044] In this way, the indicator element provides an intuitive angle indication, which helps to provide real-time feedback on the swing angle of the offset roller, thereby intuitively reflecting the offset of the offset roller relative to the mounting seat, and helps to accurately adjust the swing angle of the offset roller.

[0045] In certain embodiments, the indicating element comprises a pointer, a scale is provided on the mounting seat, and the pointer points to the scale to indicate the swing angle of the offset roller.

[0046] The combination of a pointer and scale allows for intuitive display of the offset roller's swing angle, eliminating the need for complex measurements and making operation easier, thus reducing commissioning time and improving operational efficiency. Furthermore, the pointer points to the scale, providing a specific angle value, allowing the offset roller's swing angle to be accurately adjusted, achieving precise pole piece offset.

[0047] In some embodiments, the first conveying roller group and the second conveying roller group are symmetrically arranged with respect to the conveying direction of the pole piece.

[0048] In this way, due to the symmetrical arrangement of the first conveyor roller group and the second conveyor roller group, the force distribution on the pole pieces during the conveying process is more uniform, reducing the friction and extrusion between the pole pieces, helping to reduce damage and contamination on the pole piece surface, and improving the quality and performance of the battery cells.

[0049] In some embodiments, the conveying device includes a cutting assembly, which is arranged upstream of the conveying roller group and is used to cut the original electrode sheet into the plurality of electrode sheets.

[0050] The cutting assembly's automated cutting function allows the original electrode sheet to be quickly cut into multiple pieces, improving production efficiency and output. The cutting assembly enables precise cutting, ensuring that each piece is the same size, guaranteeing battery consistency and stability.

[0051] The winding device of the embodiment of the present application includes the conveying device described in any of the above embodiments.

[0052] In this way, through the above conveying device, the winding equipment has a variety of different functions and characteristics. The winding equipment can realize different operations such as conveying, splitting, and offsetting of pole pieces. The winding equipment can realize automated pole piece conveying and splitting, thereby improving production efficiency and reducing production costs. Through the functions of the winding equipment, the pole pieces can be accurately processed and assembled, which helps to optimize the quality and performance of the battery cells.

[0053] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0055] FIG1 is a schematic structural diagram of a conveying device according to an embodiment of the present application;

[0056] FIG2 is a schematic structural diagram of a conveying device according to an embodiment of the present application;

[0057] FIG3 is a schematic structural diagram of a conveying device according to an embodiment of the present application;

[0058] FIG4 is a schematic structural diagram of a conveying device according to an embodiment of the present application;

[0059] FIG5 is a schematic diagram of an assembly structure of an adjustment mechanism and an offset roller according to an embodiment of the present application;

[0060] FIG6 is a schematic diagram of an assembly structure of an adjustment mechanism and an offset roller according to an embodiment of the present application;

[0061] 7 is a schematic diagram of an assembly structure of an adjustment mechanism and an offset roller according to an embodiment of the present application;

[0062] FIG8 is a cross-sectional view of the assembly structure of FIG7 in the direction aa;

[0063] FIG9 is a schematic structural diagram of an adjustment mechanism according to an embodiment of the present application;

[0064] FIG10 is a schematic structural diagram of a winding device according to an embodiment of the present application;

[0065] FIG11 is a schematic diagram of the assembly structure of the winding needle and the support structure according to an embodiment of the present application.

[0066] Explanation of the accompanying drawings: Conveying device 100; pole piece 200; conveying roller group 10; conveying roller 11; offset mechanism 20; first pole piece 201; second pole piece 202; first conveying roller group 12; second conveying roller group 13; first conveying roller 120; second conveying roller 130; offset roller 21; first offset roller 210; second offset roller 211; back plate 30; adjustment mechanism 40; mounting seat 41; rotating shaft 42; adjustment assembly 43; first adjustment member 430; second adjustment member 431; indicating element 44; support seat 45; main body 450; support frame 451; pointer 440; scale 410; cutting assembly 50; winding device 1000; winding needle 300; support structure 310. DETAILED DESCRIPTION

[0067] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application.

[0068] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0069] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0070] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0071] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0072] Currently, market developments indicate that power batteries are becoming increasingly widely used. Power batteries are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in aerospace and other fields. As power battery applications continue to expand, market demand is also growing.

[0073] Common types of rechargeable batteries currently include lead-acid batteries, nickel-metal hydride batteries, and lithium-ion batteries. The battery referred to in the examples disclosed herein refers to a single physical module comprising one or more battery cells to provide a predetermined voltage and capacity. A battery cell is the basic unit in a battery and can generally be categorized by packaging method as: cylindrical battery cells, rectangular battery cells, and soft-pack battery cells.

[0074] A battery cell consists of a positive electrode sheet, a negative electrode sheet, an electrolyte, and a separator. Lithium-ion battery cells primarily rely on the movement of lithium ions between the positive and negative electrode sheets. In cylindrical battery cells, a three-layer film structure is wound into a cylindrical electrode assembly, while in rectangular battery cells, the film structure is wound or stacked into a roughly rectangular electrode assembly.

[0075] In some scenarios, battery cell pole pieces need to be wound to form a predetermined shape. During transportation of the unwound pole pieces, they can easily come into contact with each other, causing friction. This friction can damage, scratch, or contaminate the pole piece surface, thereby reducing the quality and performance of the resulting battery cell.

[0076] Therefore, in order to solve the problem that during the winding process of multiple electrode sheets, adjacent electrode sheets contact and rub against each other, causing damage, scratches or contamination on the electrode sheet surface, thereby reducing the quality and performance of the produced battery cells, embodiments of the present application provide a conveying device and a winding device.

[0077] Please refer to Figure 1, which is a schematic structural diagram of a conveying device 100 according to an embodiment of the present application. The conveying device 100 according to the embodiment of the present application is used to convey a plurality of pole pieces 200 formed by segmentation. The conveying device 100 includes a plurality of conveying roller groups 10 and an offset mechanism 20. The conveying roller group 10 includes at least one conveying roller 11, each conveying roller 11 is used to convey one pole piece 200; the offset mechanism 20 is used to connect to at least one pole piece 200, and along the width direction W of the pole piece 200, the offset mechanism 20 is used to offset two adjacent pole pieces 200 from each other.

[0078] Specifically, the number of pole pieces 200 can be two, three, four or even more, and the width, length, etc. of the plurality of pole pieces 200 can be the same or different. The number of conveying roller groups 10 can be two, three, four or even more, and the conveying roller group 10 can include one or more conveying rollers 11. The conveying rollers 11 can be rollers for conveying the pole pieces 200 along a predetermined direction, i.e., the conveying direction H of the pole pieces 200 (as shown in FIG. 2 ). The pole pieces 200 can contact the surface of the conveying rollers 11, and the conveying of the pole pieces 200 can be achieved by the rotation of the conveying rollers 11.

[0079] The offset mechanism 20 may be disposed behind the conveyor roller 11. The plurality of pole pieces 200 fed from the conveyor roller 11 are further connected to the offset mechanism 20. By adjusting parameters such as the angle and distance between the various parts of the offset mechanism 20, the plurality of pole pieces 200 are offset from each other. Specifically, two adjacent pole pieces 200 along the width direction W of the pole pieces 200 are offset from each other. The width direction W of the pole piece 200 refers to the width direction in which the plurality of pole pieces 200 are arranged.

[0080] It can be understood that during the conveying process of the conveying roller 11, multiple pole pieces 200 can be arranged at intervals along the overall width direction. After the multiple pole pieces 200 are conveyed to the offset mechanism 20, the two adjacent pole pieces 200 will be offset in the width direction W of the pole piece 200 under the guidance of the offset mechanism 20, thereby reducing the probability of friction between the two adjacent pole pieces 200.

[0081] In the conveying device 100 of the embodiment of the present application, along the width direction W of the pole piece 200, the offset mechanism 20 offsets the two adjacent pole pieces 200 from each other, so that the two adjacent pole pieces 200 can be separated from each other during the winding process, thereby reducing the probability of mutual friction between the two pole pieces 200, thereby reducing damage, scratches or contamination on the surface of the pole piece 200, and thereby improving the quality and performance of the produced battery cells.

[0082] Please refer to Figures 1 and 2. Figure 2 is a schematic diagram of the structure of a conveying device 100 according to one embodiment of the present application. In some embodiments, the number of pole pieces 200 and the number of conveying roller groups 10 are both two, the two pole pieces 200 are respectively a first pole piece 201 and a second pole piece 202, and the two conveying roller groups 10 are respectively a first conveying roller group 12 and a second conveying roller group 13. The first conveying roller group 12 includes at least one first conveying roller 120, which is used to convey the first pole piece 201. The second conveying roller group 13 includes at least one second conveying roller 130, which is used to convey the second pole piece 202.

[0083] The offset mechanism 20 is used to connect with the first pole piece 201 and / or the second pole piece 202 . Along the width direction W1 of the first pole piece 201 , the offset mechanism 20 is used to offset the first pole piece 201 and the second pole piece 202 from each other.

[0084] Specifically, the first conveyor roller assembly 12 and the second conveyor roller assembly 13 may be spaced a certain distance apart from each other, so that the first electrode piece 201 and the second electrode piece 202 are spaced a certain distance apart when they are initially conveyed by the conveyor roller assembly 10. The width direction W1 of the first electrode piece 201 may be the same as the width direction W of the electrode piece 200. The width direction W1 of the first electrode piece 201 refers to the direction in which the width of the first electrode piece 201 extends at the portion of the first electrode piece 201 where the first electrode piece 201 contacts the first conveyor roller 120. The width direction of the second electrode piece 202 is similar and will not be further described here.

[0085] The offset mechanism 20 may be connected to the first pole piece 201, or may be connected to the second pole piece 202, or may be connected to both the first pole piece 201 and the second pole piece 202. The offset mechanism 20 may be an offset rod, an offset guide rail, an offset roller 21, etc. The offset mechanism 20 may include multiple parts, each of which may offset the conveying direction of the first pole piece 201 or the second pole piece 202.

[0086] For example, in the initial position, the first electrode piece 201 and the second electrode piece 202 are conveyed in the same conveying direction. When the first electrode piece 201 is conveyed to the offset mechanism 20, the offset mechanism 20 may not change the conveying direction of the first electrode piece 201, and when the second electrode piece 202 is conveyed to the offset mechanism 20, the offset mechanism 20 may change the conveying direction of the second electrode piece 202, so that the first electrode piece 201 and the second electrode piece 202 are offset from each other along the width direction W1 of the first electrode piece 201.

[0087] In some embodiments, the offset mechanism 20 can be an offset rod, which can be fixed to one side of the first pole piece 201 and / or the second pole piece 202 by bolts or nuts. By adjusting the length and angle of the offset rod, a certain force is applied to the first pole piece 201 and / or the second pole piece 202, thereby achieving offset.

[0088] In some embodiments, the offset mechanism 20 can fix an offset guide rail to the conveying device 100, and corresponding sliders or guide devices are provided on the first pole piece 201 and / or the second pole piece 202. By adjusting the position of the offset guide rail, the first pole piece 201 and / or the second pole piece 202 can be offset along the guide rail.

[0089] Thus, since there are two pole pieces 200 and two conveyor roller sets 10, one for conveying the first pole piece 201 and the other for conveying the second pole piece 202, respectively, this design allows the conveying processes of the first pole piece 201 and the second pole piece 202 to be independent of each other, avoiding interference and mutual influence between different pole pieces 200. The offset mechanism 20 can be used to precisely control the offset between the first pole piece 201 and the second pole piece 202. This design ensures the consistency of the position and size of the pole pieces 200.

[0090] Please refer to Figures 1 and 2. In some embodiments, the offset mechanism 20 includes at least one offset roller 21, which is connected to the first pole piece 201 and / or the second pole piece 202. The axial direction of the offset roller 21 forms an angle with the axial direction of the first conveying roller 120 and / or the second conveying roller 130, so that the first pole piece 201 and the second pole piece 202 are offset from each other along the width direction W1 of the first pole piece 201.

[0091] In some embodiments, the offset roller 21 is connected to the first pole piece 201. In some embodiments, the offset roller 21 is connected to the second pole piece 202. In some embodiments, the offset roller 21 is connected to the first pole piece 201 and the second pole piece 202. In some embodiments, the axial direction of the offset roller 21 forms an angle with the axial direction of the first conveyor roller 120. In some embodiments, the axial direction of the offset roller 21 forms an angle with the axial direction of the second conveyor roller 130. In some embodiments, the axial direction of the offset roller 21 forms an angle with the axial direction of the first conveyor roller 120 and the axial direction of the second conveyor roller 130.

[0092] Specifically, the offset roller 21 can be a roller used to offset the first pole piece 201 and / or the second pole piece 202. Both the offset roller 21 and the conveying roller 11 can be made of wear-resistant materials to increase the service life of both. The first pole piece 201 and / or the second pole piece 202 are in contact with the surface of the offset roller 21. During the rotation of the offset roller 21, the first pole piece 201 and / or the second pole piece 202 can move in different directions. The direction of movement can be adjusted according to the position of the offset roller 21.

[0093] The number of offset rollers 21 can be one, two, three, or even more. In some embodiments, the offset mechanism 20 comprises a single offset roller 21, which is connected to the first pole piece 201 and / or the second pole piece 202. By adjusting the position of the offset roller 21, the first pole piece 201 and the second pole piece 202 are offset relative to each other under the action of the conveying roller 11, thereby ensuring a gap between the pole pieces 200.

[0094] In some embodiments, the offset mechanism 20 is composed of a plurality of offset rollers 21, each connected to the first pole piece 201 and the second pole piece 202. The plurality of offset rollers 21 are arranged along the width direction of the first conveyor roller 120 and / or the second conveyor roller 130. By adjusting the position and angle of each offset roller 21, the plurality of pole pieces 200 are offset.

[0095] In this way, the first pole piece 201 and the second pole piece 202 are offset from each other by forming an angle between the axial direction of the offset roller 21 and the axial direction of the first conveying roller 120 and / or the second conveying roller 130. This design can achieve precise offset of the pole piece 200 and control the offset amount. By adjusting the angle between the offset roller 21 and the first conveying roller 120 and / or the second conveying roller 130, the offset distance of the first pole piece 201 and the second pole piece 202 can be adjusted, thereby further ensuring the consistency of the position and size of the pole piece 200.

[0096] Referring to FIG. 2 , in some embodiments, the offset roller 21 includes a first offset roller 210 and a second offset roller 211 . The first offset roller 210 is connected to the first pole piece 201 . The axial direction of the first offset roller 210 forms a first angle A with the axial direction of the first conveying roller 120 . The first offset roller 210 cooperates with the first conveying roller 120 to convey the first pole piece 201 .

[0097] The second offset roller 211 is connected to the second pole piece 202 . The axial direction of the second offset roller 211 forms a second angle B with the axial direction of the second conveying roller 130 . The second offset roller 211 cooperates with the second conveying roller 130 to transport the second pole piece 202 .

[0098] Specifically, the first offset roller 210 and the second offset roller 211 are different offset rollers 21. After the first pole piece 201 and the second pole piece 202 are respectively conveyed to the first offset roller 210 and the second offset roller 211 by the first conveying roller 120 and the second conveying roller 130, the first pole piece 201 and the second pole piece 202 will be offset toward different angles under the action of the first offset roller 210 and the second offset roller 211, thereby realizing the conveyance and offset of the first pole piece 201 and the second pole piece 202.

[0099] The axial direction of the first offset roller 210 may be an extension direction of the axis P1 of the first offset roller 210 , and the axial direction of the first conveying roller 120 may be an extension direction of the axis S1 of the first conveying roller 120 ; the axial direction of the second offset roller 211 may be an extension direction of the axis P2 of the second offset roller 211 , and the axial direction of the second conveying roller 130 may be an extension direction of the axis S2 of the second conveying roller 130 .

[0100] The first angle A and the second angle B can be adjusted as needed, specifically by adjusting the angle between the axial direction of the first offset roller 210 and the axial direction of the first conveying roller 120, or adjusting the angle between the axial direction of the second offset roller 211 and the axial direction of the second conveying roller 130, so as to control the offset degree of the first pole piece 201 or the second pole piece 202.

[0101] Thus, through the design of the first offset roller 210 and the second offset roller 211, the first electrode piece 201 and the second electrode piece 202 are transported separately. This design makes the transport processes of the first electrode piece 201 and the second electrode piece 202 independent of each other, avoiding interference and mutual influence between different electrode pieces 200. Furthermore, the first offset roller 210 and the second offset roller 211 respectively cooperate with the corresponding conveying roller group 10 for transport, so that the offset process of the first electrode piece 201 and the second electrode piece 202 can be independently controlled. This design provides greater flexibility in offsetting and can adapt to the production needs of electrode pieces 200 of different sizes and types.

[0102] Referring to FIG. 2 , in some embodiments, the tilt direction T1 of the first offset roller 210 and the tilt direction T2 of the second offset roller 211 are opposite.

[0103] Specifically, the tilt direction T1 of the first offset roller 210 may be the tilt direction of the first offset roller 210 relative to its axis P1, and is used to control the offset angle of the offset roller 21. The tilt direction T2 of the second offset roller 211 may be the tilt direction of the second offset roller 211 relative to its axis P2, and is used to control the offset angle of the offset roller 21. The tilt direction T1 of the first offset roller 210 and the tilt direction T2 of the second offset roller 211 may be opposite, for example, one tilted toward the upper left and the other tilted toward the upper right.

[0104] As such, because the inclination direction T1 of the first offset roller 210 and the inclination direction T2 of the second offset roller 211 are opposite, the first pole piece 201 and the second pole piece 202 can be offset from each other in opposite directions in the width direction W of the pole piece 200. This design enables bidirectional offset, further increasing the flexibility and controllability of the offset. Furthermore, the distance between the first pole piece 201 and the second pole piece 202 is larger, effectively reducing the probability of friction between the first pole piece 201 and the second pole piece 202.

[0105] 1 and 3 , FIG3 is a schematic diagram of the structure of a conveying device 100 according to one embodiment of the present application. In some embodiments, there are multiple first conveying rollers 120 and multiple first offset rollers 210 , and at least one first offset roller 210 is disposed between two adjacent first conveying rollers 120 along the conveying direction of the first pole piece 201 .

[0106] Specifically, the arrangement direction of the plurality of first conveying rollers 120 and the plurality of first offset rollers 210 can be consistent with the conveying direction of the first pole piece 201. Between two adjacent first conveying rollers 120, the first offset roller 210 can be arranged to deviate from the arrangement direction of the two adjacent first conveying rollers 120. The number of first offset rollers 210 can be one, two, three, or even more, and these first offset rollers 210 can all offset the first pole piece 201 connected thereto.

[0107] In this way, since there are multiple first conveyor rollers 120 and first offset rollers 210, the first pole piece 201 can be transported and offset at multiple locations at different points. This design allows for more precise control of the conveying and offsetting of the first pole piece 201, further improving the accuracy and consistency of battery cell production. Providing multiple first conveyor rollers 120 and first offset rollers 210 can better meet the production needs of first pole pieces 201 of different sizes. First pole pieces 201 of different sizes can be transported and offset at different locations, providing greater flexibility.

[0108] Furthermore, the multi-point transfer and multi-point offset design allows for faster transfer and offset of the first pole piece 201, helping to improve the efficiency of battery cell production. Furthermore, the friction between the first pole piece 201 and the second pole piece 202 is reduced, lowering losses and scrap rates during battery cell production, further improving production efficiency.

[0109] Please refer to Figures 1 and 3. Figure 3 is a schematic diagram of the structure of the conveying device 100 according to an embodiment of the present application. In some embodiments, along the conveying direction of the first pole piece 201, a first offset roller 210 is provided between two adjacent first conveying rollers 120; or,

[0110] Along the conveying direction of the first pole piece 201 , all the first offset rollers 210 are disposed between two adjacent first conveying rollers 120 .

[0111] Specifically, during the conveyance process of the first pole piece 201, the first conveying roller 120 and the first offset roller 210 can be arranged in sequence, and a first offset roller 210 can be provided between two adjacent first conveying rollers 120. When the first pole piece 201 passes through the two conveying rollers 11 and the offset roller 21, the first offset roller 210 applies an offset action, causing the first pole piece 201 to be correspondingly offset relative to the first conveying roller 120.

[0112] All first offset rollers 210 are disposed between two adjacent first conveying rollers 120, forming a continuous offset structure. When the first pole piece 201 passes through these offset rollers 21, they continuously apply an offset action, causing the first pole piece 201 to continuously deflect relative to the first conveying rollers 120 during the entire conveying process.

[0113] In this way, by arranging the offset roller 21 between two adjacent first conveying rollers 120, it is possible to achieve separate offsetting of the first pole pieces 201 at different positions, ensuring the consistency of the positions and sizes of the first pole pieces 201 at different positions, and improving the assembly accuracy and consistency of the battery cells; by arranging all the first offset rollers 210 between two adjacent first conveying rollers 120, it is possible to achieve continuous offsetting of the entire first pole piece 201 area, ensuring the consistency of the positions and sizes of the first pole piece 201 in the entire width direction, and further improving the assembly accuracy and consistency of the battery cells.

[0114] 1 and 3 , in some embodiments, there are multiple second conveying rollers 130 and multiple second offset rollers 211 , and at least one second offset roller 211 is disposed between two adjacent second conveying rollers 130 along the conveying direction of the second pole piece 202 .

[0115] Specifically, the principles of conveying and deflecting the second pole piece 202 by the second conveying roller 130 and the second deflecting roller 211 are similar to those of the first pole piece 201 described above, and therefore will not be further described in detail in the embodiments of the present application.

[0116] In this way, since there are multiple second conveyor rollers 130 and second offset rollers 211, the second pole piece 202 can be transported and offset at multiple locations at different points. This design allows for more precise control of the conveying and offsetting of the second pole piece 202, further improving the accuracy and consistency of battery cell production. Providing multiple second conveyor rollers 130 and second offset rollers 211 can better accommodate the production needs of second pole pieces 202 of different sizes. Second pole pieces 202 of different sizes can be transported and offset at different locations, providing greater flexibility.

[0117] 1 and 3 , in some embodiments, a second offset roller 211 is provided between two adjacent second conveying rollers 130 along the conveying direction of the second pole piece 202 ; or,

[0118] Along the conveying direction of the second pole piece 202 , all the second offset rollers 211 are disposed between two adjacent second conveying rollers 130 .

[0119] Specifically, the configuration of the second conveying roller 130 and the second offset roller 211 is similar to that of the first conveying roller 120 and the first offset roller 210 described above, and thus the embodiments of the present application are not described in detail herein.

[0120] In this way, by arranging the offset roller 21 between two adjacent second conveying rollers 130, the second pole pieces 202 at different positions can be individually offset, ensuring the consistency of the positions and sizes of the second pole pieces 202 at different positions, and improving the assembly accuracy and consistency of the battery cells; by arranging all the second offset rollers 211 between two adjacent second conveying rollers 130, continuous offset of the entire second pole piece 202 area can be achieved, ensuring the consistency of the positions and sizes of the second pole pieces 202 in the entire width direction, and further improving the assembly accuracy and consistency of the battery cells.

[0121] 1 and 3 , in some embodiments, there are multiple first conveying rollers 120 and multiple first offset rollers 210 , all first offset rollers 210 are at the same height, all first conveying rollers 120 are at the same height, and the height of the first offset rollers 210 is higher than the height of the first conveying rollers 120; and / or,

[0122] There are multiple second conveying rollers 130 and multiple second offset rollers 211 . All second offset rollers 211 are at the same height. All second conveying rollers 130 are at the same height. The height of the second offset rollers 211 is lower than that of the second conveying rollers 130 .

[0123] In some embodiments, there are multiple first conveying rollers 120 and multiple first offset rollers 210 , all first offset rollers 210 are at the same height, and all first conveying rollers 120 are at the same height. The height of the first offset rollers 210 is higher than that of the first conveying rollers 120 .

[0124] In some embodiments, there are multiple second conveying rollers 130 and multiple second offset rollers 211 , all second offset rollers 211 are at the same height, all second conveying rollers 130 are at the same height, and the height of the second offset rollers 211 is lower than that of the second conveying rollers 130 .

[0125] In some embodiments, there are multiple first conveying rollers 120 and multiple first offset rollers 210, all of which are at the same height, all of which are at the same height for conveying rollers 120, and the height of the first offset rollers 210 is higher than that of the first conveying rollers 120; and there are multiple second conveying rollers 130 and multiple second offset rollers 211, all of which are at the same height, all of which are at the same height for conveying rollers 130, and the height of the second offset rollers 211 is lower than that of the second conveying rollers 130.

[0126] Specifically, the plurality of first offset rollers 210 can be arranged on the same horizontal line, maintaining a horizontal arrangement. The plurality of first conveying rollers 120 can also be arranged on the same horizontal line, maintaining a horizontal arrangement. The first offset rollers 210 are arranged higher than the first conveying rollers 120, forming a certain distance to ensure that the first offset rollers 210 can offset the first pole piece 201.

[0127] Similarly, multiple second offset rollers 211 can be arranged on the same horizontal line, maintaining a horizontal arrangement. Multiple second conveyor rollers 130 can also be arranged on the same horizontal line, maintaining a horizontal arrangement. The second offset rollers 211 are set lower than the second conveyor rollers 130, forming a certain distance to ensure that the second offset rollers 211 have an offset effect on the second pole piece 202. This also prevents interference between the first offset rollers 210 and the second offset rollers 210, thereby effectively reducing the probability of friction between the first pole piece 201 and the second pole piece 202.

[0128] Thus, by arranging the first conveyor roller 120 and the first offset roller 210, the height of the first offset roller 210 is higher than that of the first conveyor roller 120. Similarly, by arranging the second conveyor roller 130 and the second offset roller 211, the height of the second offset roller 211 is lower than that of the second conveyor roller 130. This design allows the pole piece 200 to be conveyed and offset at different heights, providing greater flexibility.

[0129] Furthermore, the conveying and offset design at different heights can precisely control the offset of the pole piece 200 at different locations. By adjusting the height of the first offset roller 210 and the second offset roller 211, the position and size consistency of the pole piece 200 is ensured, improving the assembly accuracy and consistency of the battery cells.

[0130] Please refer to Figure 4, which is a schematic diagram of the structure of a conveying device 100 according to one embodiment of the present application. In certain embodiments, the conveying device 100 includes a back plate 30 and an adjustment mechanism 40. The adjustment mechanism 40 and the conveying roller assembly 10 are both mounted on the back plate 30. The offset roller 21 is mounted on the adjustment mechanism 40. The adjustment mechanism 40 is used to adjust the axial direction of the offset roller 21.

[0131] Specifically, the back plate 30 can be a solid, planar structure made of metal or an alloy to ensure sufficient stability and strength to bear the weight of the adjustment mechanism 40 and the conveyor roller assembly 10 and to resist the stress and pressure during operation. The back plate 30 is the main support structure 310 of the conveyor device 100 and can be used to mount the adjustment mechanism 40 and the conveyor roller assembly 10, providing a stable support platform.

[0132] The adjustment mechanism 40 is an important component for realizing axial adjustment of the offset roller 21. It can be composed of gears, screws or other mechanisms. The adjustment mechanism 40 can make the offset roller 21 swing or rotate. The position and angle of the offset roller 21 can be changed through the adjustment mechanism 40, thereby controlling the offset degree of the pole piece 200.

[0133] The offset roller 21 is installed on the adjustment mechanism 40. Through the axial adjustment of the adjustment mechanism 40, the first pole piece 201 can be offset from each other along the width direction W1 of the first pole piece 201, or the second pole piece 202 can be offset from each other along the width direction W1 of the first pole piece 201, or the first pole piece 201 and the second pole piece 202 can be offset from each other along the width direction W1 of the first pole piece 201.

[0134] The adjustment mechanism 40 and the conveyor roller assembly 10 can be mounted on the back plate 30 by bolts, welding, or other fastening means. These fastening methods can ensure that the adjustment mechanism 40 and the conveyor roller assembly 10 do not loosen or move during operation. Similarly, the offset roller 21 can also be mounted on the adjustment mechanism 40 by bolts, welding, or other fastening means.

[0135] In this manner, the back plate 30 serves as the main component of the conveyor device 100, and the adjustment mechanism 40 and the conveyor roller assembly 10 are both mounted on the back plate 30. This design simplifies the structure of the conveyor device 100 and improves assembly and maintenance convenience. Mounting the offset roller 21 on the adjustment mechanism 40 allows the adjustment mechanism 40 to more precisely adjust the position and axial direction of the offset roller 21, thereby achieving more precise offset of the pole piece 200.

[0136] Please refer to Figures 4 and 5. Figure 5 is a schematic diagram of the assembly structure of the adjustment mechanism 40 and the offset roller 21 according to one embodiment of the present application. In certain embodiments, the adjustment mechanism 40 includes a mounting base 41 and a rotating shaft 42. The mounting base 41 is fixed to the back plate 30. The rotating shaft 42 is rotatably mounted on the mounting base 41. The offset roller 21 is fixedly connected to the rotating shaft 42. The offset roller 21 can swing relative to the mounting base 41 via the rotating shaft 42. The axial direction of the offset roller 21 is substantially perpendicular to the axial direction of the rotating shaft 42. The axial direction of the offset roller 21 can be the extension direction of the central axis P3 of the offset roller 21, and the axial direction of the rotating shaft 42 can be the extension direction of the central axis Z of the rotating shaft 42.

[0137] Specifically, the mounting base 41 can be a solid structure made of metal or alloy material to ensure sufficient stability and strength, and can be fixed to the back plate 30 by bolts or other fastening methods. The shape of the mounting base 41 can be set as required, for example, it can be a combination or a spherical shape.

[0138] The rotating shaft 42 is a rotating component in the adjustment mechanism 40 and is mounted on the mounting seat 41. The rotating shaft 42 allows the offset roller 21 to be fixedly connected so that the offset roller 21 can rotate around the axis to adjust and control the position and angle of the offset roller 21.

[0139] By disposing the rotating shaft 42 , the offset roller 21 can swing relative to the mounting seat 41 , thereby causing the first pole piece 201 and / or the second pole piece 202 to offset from each other along the width direction W1 of the first pole piece 201 .

[0140] Specifically, through the setting of the rotating shaft 42, the offset roller 21 can swing relative to the mounting seat 41, so that the first pole piece 201 is offset from each other along the width direction W1 of the first pole piece 201, or the second pole piece 202 is offset from each other along the width direction W1 of the first pole piece 201, or the first pole piece 201 and the second pole piece 202 are offset from each other along the width direction W1 of the first pole piece 201.

[0141] In this way, through the combination of the rotating shaft 42 and the mounting seat 41, the offset roller 21 can swing relative to the mounting seat 41. This design makes the offset adjustment of the offset roller 21 more flexible. The mounting seat 41 is fixed on the back plate 30, and the back plate 30 provides a stable support for the mounting seat 41, which helps to ensure the stability and reliability of the adjustment mechanism 40 and the offset roller 21. The axial direction of the offset roller 21 is roughly perpendicular to the axial direction of the rotating shaft 42, so that the offset roller 21 can swing in the vertical direction. This design can achieve a vertical offset of the pole piece 200, ensure the consistency of the position and size of the pole piece 200, and improve the assembly accuracy and consistency of the battery cell.

[0142] Please refer to Figure 6, which is a schematic diagram of the assembly structure of the adjustment mechanism 40 and the offset roller 21 according to one embodiment of the present application. In other embodiments, the adjustment mechanism 40 may include a support base 45, which is mounted on the back plate 30. The support base 45 may include a body 450 and a support frame 451 rotatably connected to the body 450. The body 450 may be connected to the back plate 30, and the support frame 451 may be mounted with multiple offset rollers 21, which are rotatable relative to the support frame 451. The support frame 451 and the body 450 may be rotatably connected via a rotating shaft, a rotating disk, or the like.

[0143] Referring to FIG. 5 , in some embodiments, the adjustment mechanism 40 includes an adjustment component 43 mounted on the mounting base 41 . The adjustment component 43 is connected to the offset roller 21 and is used to adjust the swing angle of the offset roller 21 relative to the mounting base 41 .

[0144] Specifically, the adjustment assembly 43 is an important component of the adjustment mechanism 40 , and can be connected to the offset roller 21 through bolts or other means, and the swing angle of the offset roller 21 can be controlled by adjusting its position.

[0145] Thus, the adjustment assembly 43 is mounted on the mounting base 41, and the mounting base 41 provides stable support for the adjustment assembly 43, helping to ensure the stability and reliability of the adjustment mechanism 40 and the offset roller 21. By connecting the adjustment assembly 43 to the offset roller 21, the swing angle of the offset roller 21 relative to the mounting base 41 can be adjusted.

[0146] In some embodiments, the adjustment component 43 may be designed to have a sliding structure and be slidably mounted on the mounting seat 41 , so as to adjust the position of the offset roller 21 by sliding, thereby achieving adjustment of the swing angle.

[0147] In some embodiments, the adjustment component 43 may be designed as a gear transmission structure, and the gear transmission causes the offset roller 21 to swing relative to the mounting seat 41 to achieve adjustment of the swing angle.

[0148] Please refer to Figures 7 and 8. Figure 7 is a schematic diagram of the assembly structure of the adjustment mechanism 40 and the offset roller 21 according to one embodiment of the present application, and Figure 8 is a cross-sectional view of the assembly structure taken along the aa direction of Figure 7. In certain embodiments, the adjustment assembly 43 includes a first adjustment member 430 and a second adjustment member 431. The first adjustment member 430 and the second adjustment member 431 are both mounted on the mounting base 41 and abut against the offset roller 21. The first adjustment member 430 and the second adjustment member 431 drive the offset roller 21 to swing relative to the mounting base 41 during their rotation relative to the mounting base 41.

[0149] Specifically, the first adjustment member 430 is part of the adjustment assembly 43 and can roughly adjust the position of the offset roller 21. The first adjustment member 430 can be a locking screw, an adjustment screw, or the like. A locking screw is a screw whose length can be adjusted by rotation and can be used for locking. In the adjustment assembly 43, the locking screw is connected to the offset roller 21. By rotating the locking screw, the position of the offset roller 21 can be adjusted, achieving rough offset adjustment. The locking screw is simple and quick to adjust, making it suitable for a wide range of offset adjustments.

[0150] The second adjustment member 431 is another part of the adjustment assembly 43. The second adjustment member 431 has higher adjustment accuracy than the first adjustment member 430. After the first adjustment member 430 adjusts the position of the offset roller 21, the second adjustment member 431 further adjusts the position of the offset roller 21 during rotation relative to the mounting base 41 to achieve a more precise swing angle. The second adjustment member 431 can be a screw micrometer, which achieves adjustment by rotating a spiral thread. The screw micrometer has high measurement accuracy and is suitable for situations requiring high-precision offset adjustment. In the adjustment assembly 43, the screw micrometer is connected to the offset roller 21. By rotating the screw micrometer, the position of the offset roller 21 can be fine-tuned to achieve more precise offset angle control.

[0151] In some embodiments, the first adjusting member 430 may be a sliding block, and the position of the offset roller 21 is adjusted by the position of the sliding block on the adjusting assembly 43 .

[0152] In some embodiments, the second adjusting member 431 may be a screw adjusting rod, which is connected to the offset roller 21 via the screw adjusting rod to achieve precise offset adjustment.

[0153] In this manner, the first adjustment member 430 and the second adjustment member 431 are both mounted on the mounting base 41 and abut against the offset roller 21, providing a stable support structure 310 and helping to ensure the stability and reliability of the adjustment mechanism 40 and the offset roller 21. The combination of the first adjustment member 430 and the second adjustment member 431 enables precise adjustment of the swing angle of the offset roller 21 relative to the mounting base 41. The first adjustment member 430 provides coarse adjustment, while the second adjustment member 431 provides more detailed adjustment, resulting in more precise adjustment of the offset angle of the offset roller 21.

[0154] 7 and 9 , FIG9 is a schematic structural diagram of an adjustment mechanism 40 according to an embodiment of the present application. In some embodiments, the adjustment mechanism 40 further includes an indicator element 44 connected to the rotating shaft 42 , and the indicator element 44 is used to indicate the swing angle of the offset roller 21 .

[0155] Specifically, the indicator element 44 can be a pointer 440 or other suitable device, such as a digital display or indicator light. The specific form can be selected according to actual needs. The rotation of the shaft 42 can drive the indicator element 44 to move, so that the indicator element 44 can indicate the swing angle of the offset roller 21.

[0156] In this way, the indicator element 44 provides an intuitive angle indication, which helps to provide real-time feedback on the swing angle of the offset roller 21, thereby intuitively reflecting the offset of the offset roller 21 relative to the mounting seat 41, and helping to accurately adjust the swing angle of the offset roller 21.

[0157] Please refer to FIG. 9 . In some embodiments, the indicator element 44 includes a pointer 440 . A scale 410 is provided on the mounting base 41 . The pointer 440 points to the scale 410 to indicate the swing angle of the offset roller 21 .

[0158] Specifically, the indicator element 44 can be fixed to the mounting base 41, and a scale 410 can be provided in a corresponding area on the mounting base 41. The scale 410 can be a ruler on the mounting base 41, used to indicate the swing angle of the offset roller 21. The scale 410 can be a linear scale 410 or an angular scale 410, and the design depends on the swing angle range and accuracy. The pointer 440 is the movable portion of the indicator element 44 and is connected to the offset roller 21. As the offset roller 21 swings and adjusts, the pointer 440 moves accordingly, pointing to the corresponding position on the scale 410, thereby indicating the current offset angle.

[0159] Thus, the combination of pointer 440 and scale 410 can intuitively reflect the swing angle of offset roller 21, eliminating the need for complex measurements and making operation easier, thereby reducing debugging time and improving operational efficiency. In addition, pointer 440 points to scale 410, providing a specific angle value, allowing the swing angle of offset roller 21 to be accurately adjusted, thereby achieving precise offset of pole piece 200.

[0160] In other embodiments, the indicator element 44 may be a digital indicator element. The digital indicator element refers to an element that indicates through a display screen. The digital indicator element can more intuitively reflect the swing angle of the offset roller 21 .

[0161] Referring to FIG. 2 , in some embodiments, the first conveying roller set 12 and the second conveying roller set 13 are symmetrically arranged with respect to the conveying direction H of the pole piece 200 .

[0162] Specifically, the first electrode piece 201 and the second electrode piece 202 can be transported in a transverse direction. The first transport roller set 12 and the second transport roller 130 can be arranged longitudinally on both sides of the transport direction of the first electrode piece 201 and the second electrode piece 202 to form a symmetrical structure.

[0163] In this way, due to the symmetrical arrangement of the first conveying roller group 12 and the second conveying roller group 13, the force distribution on the pole piece 200 during the conveying process is more uniform, which reduces the friction and extrusion between the pole pieces 200, helps to reduce damage and contamination on the surface of the pole piece 200, and improves the quality and performance of the battery cell.

[0164] Referring to FIG. 1 and FIG. 3 , in certain embodiments, the conveying device 100 includes a cutting assembly 50 . The cutting assembly 50 is disposed upstream of the conveying roller assembly 10 and is configured to cut the original electrode sheet 200 into a plurality of electrode sheets 200 .

[0165] Specifically, the cutting principle of the cutting assembly 50 can be mechanical cutting, laser cutting, plasma cutting, etc. The original electrode sheet 200 can be a large piece of electrode material. When the original electrode sheet 200 passes through the cutting assembly 50, the laser cutting system will cut the original electrode sheet 200 into multiple smaller electrode sheets 200 according to a preset cutting pattern. This can achieve the goal of obtaining multiple smaller electrode sheets 200 from a single original electrode sheet 200, thereby improving the output and efficiency of battery production.

[0166] Thus, through the automatic cutting function of the cutting assembly 50, the original electrode sheet 200 can be quickly cut into multiple electrode sheets 200, thereby improving production efficiency and output. The cutting assembly 50 can achieve precise cutting operations, ensuring that each cut electrode sheet 200 has the same size, ensuring the consistency and stability of the battery.

[0167] Please refer to Figure 10, which is a simplified structural diagram of a winding device 1000 according to an embodiment of the present application. The winding device 1000 according to an embodiment of the present application includes a conveying device 100 according to any of the above embodiments. The conveying device 100 is used to transport the pole piece 200 of the battery cell to a winding position.

[0168] Specifically, the winding device 1000 is a device for winding the pole piece 200 of the battery cell into a predetermined shape. The winding device 1000 includes a winding needle 300, which is used to wind the pole piece 200 conveyed by the conveying device.

[0169] Please refer to Figure 11, which is a schematic diagram of the assembly structure of the winding needle 300 and the support structure 310 of an embodiment of the present application. The winding needle 300 is inserted into the support structure 310. The support structure 310 can be a structure for installing and supporting the winding needle 300, so that the winding needle 300 can be stable during the winding process, thereby reducing the probability of bending and deformation of the winding needle 300, thereby improving the service life of the winding needle 300. However, the provision of the support structure 310 requires the use of a cutting assembly 50 to cut the pole piece 200, thereby avoiding the support structure 310, so as to reduce the probability of interference between the support structure 310 and the pole piece 200, and improve the performance and quality of the battery cell.

[0170] In this way, through the above conveying device 100, the winding equipment 1000 has a variety of different functions and characteristics. The winding equipment 1000 can realize different operations such as conveying, splitting, and offsetting of the pole piece 200. The winding equipment 1000 can realize automated conveying and splitting of the pole piece 200, thereby improving production efficiency and reducing production costs. Through the functions of the winding equipment 1000, the pole piece 200 can be accurately processed and assembled, which helps to optimize the quality and performance of the battery cell.

[0171] Referring to FIG1 , in a specific embodiment, the conveying device 100 includes a conveying roller 11 and a cutting assembly 50. The conveying roller 11 is used to convey the positive and negative electrode sheets from the supply area to the subsequent processing area. The cutting assembly 50 is disposed upstream of the conveying roller assembly 10 and is used to cut the original electrode sheet into a plurality of electrode sheets 200. The cutting assembly 50 cuts the original electrode sheet into a plurality of electrode sheets 200 of predetermined sizes, preparing for the subsequent winding and conveying processes.

[0172] An offset roller 21 may be provided downstream of the conveying roller 11. By adjusting the tilt direction of the offset roller 21, the position of the electrode 200 can be fine-tuned to ensure accurate alignment of the electrode 200 during conveyance. Furthermore, the adjustment mechanism 40 connects the first electrode 201 and the second electrode 202 by adjusting the axial direction of the offset roller 21, and offsets the two in the width direction to achieve a reasonable arrangement of the plurality of electrode pieces 200.

[0173] A first offset roller 210 and a second offset roller 211 are introduced, connected to the first pole piece 201 and the second pole piece 202, respectively. By adjusting the angle between the first offset roller 210 and the second offset roller 211 and the first conveying roller 120 and the second conveying roller 130, fine-tuning of the pole piece 200 during conveyance is achieved, ensuring the integrity of the pole piece 200. The inclination directions T2 of the first offset roller 210 and the second offset roller 211 can be set to opposite directions to ensure the stability of the relative position of the pole piece 200 during conveyance. The first conveying roller group 12 and the second conveying roller group 13 are arranged symmetrically with respect to the conveying direction H of the pole piece 200. This symmetrical arrangement ensures the stability and balance of the pole piece 200 during conveyance.

[0174] Furthermore, the number of first conveying rollers 120 and first offset rollers 210 can be set to multiple, and at least one first offset roller 210 is provided between two adjacent first conveying rollers 120 along the conveying direction of the first pole piece 201 to increase the production throughput of the pole piece 200.

[0175] Similarly, the number of second conveying rollers 130 and second offset rollers 211 can be set to multiple, and at least one second offset roller 211 is set between two adjacent second conveying rollers 130 along the conveying direction of the second pole piece 202 to increase the production throughput of the pole piece 200.

[0176] Furthermore, in the conveying direction of the first pole piece 201 , a first offset roller 210 is provided between two adjacent first conveying rollers 120 , or all first offset rollers 210 are provided between two adjacent first offset rollers 210 , so as to further optimize the conveying and offset process of the pole piece 200 .

[0177] Furthermore, multiple first conveying rollers 120 are set at the same height, multiple first offset rollers 210 are set at the same height, and the height of the first offset rollers 210 is higher than the first conveying rollers 120. At the same time, the second conveying rollers 130 are set at the same height, multiple second offset rollers 211 are set at the same height, and the height of the second offset rollers 211 is lower than the second conveying rollers 130, thereby achieving height differences of the pole pieces 200 during the conveying process, and further arranging the pole pieces 200 during the conveying process.

[0178] Further, referring to Figures 4 and 5, a back plate 30 and an adjustment mechanism 40 are installed on the conveying device 100, and the offset roller 21 is installed on the adjustment mechanism 40. The adjustment mechanism 40 is used to adjust the axial direction of the offset roller 21 to achieve connection with the pole piece 200 and offset of the pole piece 200 along the width direction.

[0179] Furthermore, the adjustment mechanism 40 includes a mounting seat 41 and a rotating shaft 42. The mounting seat 41 is fixed on the back plate 30, and the rotating shaft 42 is rotatably set on the mounting seat 41. The offset roller 21 is fixedly connected to the rotating shaft 42. Through the rotation of the rotating shaft 42, the offset roller 21 is swung relative to the mounting seat 41. The axial direction of the offset roller 21 is roughly perpendicular to the axial direction of the rotating shaft 42, further optimizing the adjustment process of the pole piece 200.

[0180] The adjustment mechanism 40 also includes an adjustment component 43, a first adjustment member 430, and a second adjustment member 431 installed on the mounting seat 41. The adjustment component 43 is connected to the offset roller 21 and is used to adjust the swing angle of the offset roller 21 relative to the mounting seat 41. Through the operation of the adjustment component 43, fine adjustment of the position of the offset roller 21 is achieved; the first adjustment member 430 and the second adjustment member 431 are both installed on the mounting seat 41 and abut against the offset roller 21. The first adjustment member 430 and the second adjustment member 431 drive the offset roller 21 to swing relative to the mounting seat 41 during the process of rotating relative to the mounting seat 41. Through the coordinated adjustment of the first adjustment member 430 and the second adjustment member 431, more precise control of the position of the offset roller 21 is achieved.

[0181] Please refer to Figure 9. The indicating element 44 includes a pointer 440. A scale 410 is provided on the mounting base 41. The pointer 440 points to the scale 410 to indicate the swing angle of the offset roller 21. The reading of the indicating element 44 can intuitively reflect the angle of the offset roller 21, thereby making adjustments more accurate.

[0182] Finally, referring to FIG. 10 , the cut electrode sheets 200 are conveyed to the winding needle 300 of the winding device 1000 by the conveying device 100 to realize winding and forming of the electrode assembly of the battery cell.

[0183] Throughout this specification, reference to terms such as "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0184] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A conveying device for conveying a plurality of pole pieces formed by segmentation, wherein: The conveying device comprises: A plurality of conveying roller groups, each of which includes at least one conveying roller, and each of which is used to convey one of the pole pieces; An offset mechanism is used to be connected to at least one of the pole pieces, and along the width direction of the pole piece, the offset mechanism is used to offset two adjacent pole pieces from each other.

2. The conveying device according to claim 1, wherein: The number of the pole pieces and the number of the conveying roller groups are both two, the two pole pieces are respectively a first pole piece and a second pole piece, the two conveying roller groups are respectively a first conveying roller group and a second conveying roller group, the first conveying roller group includes at least one first conveying roller, the first conveying roller is used to convey the first pole piece, the second conveying roller group includes at least one second conveying roller, the second conveying roller is used to convey the second pole piece; The offset mechanism is used to be connected to the first pole piece and / or the second pole piece, and along the width direction of the first pole piece, the offset mechanism is used to make the first pole piece and the second pole piece offset relative to each other.

3. The conveying device according to claim 2, wherein: The offset mechanism includes at least one offset roller, which is connected to the first pole piece and / or the second pole piece, and the axial direction of the offset roller forms an angle with the axial direction of the first conveying roller and / or the second conveying roller, so that the first pole piece and the second pole piece are offset from each other along the width direction of the first pole piece.

4. The conveying device according to claim 3, wherein: The offset roller comprises a first offset roller and a second offset roller, the first offset roller is connected to the first pole piece, the axial direction of the first offset roller forms a first angle with the axial direction of the first conveying roller, and the first offset roller cooperates with the first conveying roller to convey the first pole piece; The second offset roller is connected to the second pole piece, the axial direction of the second offset roller forms a second angle with the axial direction of the second conveying roller, and the second offset roller cooperates with the second conveying roller to convey the second pole piece.

5. The conveying device according to claim 4, wherein: The inclination direction of the first offset roller is opposite to the inclination direction of the second offset roller.

6. The conveying device according to claim 4, wherein: There are plural first conveying rollers and plural first offset rollers. Along the conveying direction of the first pole piece, at least one first offset roller is disposed between two adjacent first conveying rollers.

7. The conveying device according to claim 6, wherein: Along the conveying direction of the first pole piece, one first offset roller is arranged between two adjacent first conveying rollers; or, Along the conveying direction of the first pole piece, all of the first offset rollers are arranged between two adjacent first conveying rollers.

8. The conveying device according to any one of claims 4 to 7, wherein: There are multiple second conveying rollers and multiple second offset rollers. Along the conveying direction of the second pole piece, at least one second offset roller is arranged between two adjacent second conveying rollers.

9. The conveying device according to claim 8, wherein: Along the conveying direction of the second pole piece, a second offset roller is arranged between two adjacent second conveying rollers; or, Along the conveying direction of the second pole piece, all of the second offset rollers are arranged between two adjacent second conveying rollers.

10. The conveying device according to any one of claims 4 to 9, wherein: The number of the first conveying rollers and the first offset rollers are both multiple, all of the first offset rollers are at the same height, all of the first conveying rollers are at the same height, and the height of the first offset roller is higher than that of the first conveying roller; and / or, There are multiple second conveying rollers and multiple second offset rollers, all of the second offset rollers are at the same height, all of the second conveying rollers are at the same height, and the height of the second offset roller is lower than that of the second conveying roller.

11. The conveying device according to any one of claims 3 to 10, wherein: The conveying device comprises a back plate and an adjusting mechanism. The adjusting mechanism and the conveying roller group are both mounted on the back plate. The offset roller is mounted on the adjusting mechanism. The adjusting mechanism is used to adjust the axial direction of the offset roller.

12. The delivery device according to claim 11, wherein: The adjustment mechanism includes a mounting seat and a rotating shaft, wherein the mounting seat is fixed to the back plate, the rotating shaft is rotatably arranged on the mounting seat, the offset roller is fixedly connected to the rotating shaft, the offset roller can swing relative to the mounting seat through the rotating shaft, and the axial direction of the offset roller is substantially perpendicular to the axial direction of the rotating shaft.

13. The delivery device according to claim 12, wherein: The adjustment mechanism comprises an adjustment component mounted on the mounting seat, wherein the adjustment component is connected to the offset roller and is used for adjusting a swing angle of the offset roller relative to the mounting seat.

14. The delivery device according to claim 13, wherein: The adjustment assembly includes a first adjustment member and a second adjustment member, both of which are mounted on the mounting seat and abut against the offset roller, and both of which drive the offset roller to swing relative to the mounting seat during rotation relative to the mounting seat.

15. The conveying device according to any one of claims 12 to 14, wherein: The adjustment mechanism further comprises an indicating element connected to the rotating shaft, and the indicating element is used to indicate the swing angle of the offset roller.

16. The delivery device according to claim 15, wherein: The indicating element comprises a pointer, and a scale is arranged on the mounting seat. The pointer points to the scale to indicate the swing angle of the offset roller.

17. The conveying device according to any one of claims 2 to 16, wherein: The first conveying roller group and the second conveying roller group are symmetrically arranged with respect to a conveying direction of the pole piece.

18. The conveying device according to any one of claims 1 to 17, wherein: The conveying device comprises a cutting assembly, which is arranged upstream of the conveying roller group and is used for cutting the original pole piece into the plurality of pole pieces.

19. A winding device, wherein: A conveying device comprising any one of claims 1-18.

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