Winding device

Abstract

The utility model provides a winding device and relates to the technical field of battery cell manufacturing equipment. The winding device comprises a support, a winding mechanism, a first driving mechanism and a second driving mechanism. The winding mechanism comprises a support, a winding needle piece and a driving piece, the support is rotatably arranged on the support, the first driving mechanism drives the support to rotate, and therefore the winding needle piece arranged on the support can change the position, and the winding needle pieces located at different stations can conduct battery cell winding operation, tail glue pasting operation or battery cell discharging operation conveniently. Under the condition that the corresponding winding needle piece moves to the battery cell winding station, the driving piece drives the winding needle piece to rotate, so that the battery cell winding action is realized; the second driving mechanism drives the winding needle piece to move in the axial direction so that the winding needle piece can achieve needle inserting and needle pulling operation.

Description

Technical Field

[0001] This utility model relates to the field of battery cell manufacturing equipment technology, and more specifically, to a winding device. Background Technology

[0002] In the development of lithium battery equipment, improving cell quality and increasing production efficiency are the two most critical goals in the lithium battery industry. Among them, the cell winding process, as the core process that determines cell quality and production efficiency, is of paramount importance; and the performance of the winding head directly affects the quality of cell production.

[0003] However, current winding heads suffer from the following problems: their structure is complex and they contain numerous parts. Specifically, the winding head is composed of multiple precision parts, which not only have a large number of parts but also require extremely high machining and assembly precision, resulting in a cumbersome assembly process with many steps and significant accumulated errors during installation. Furthermore, the winding head itself is large in size and weight, exhibiting significant rotational inertia and requiring a large workspace. Simultaneously, the winding needles require multiple stages of transmission to achieve their movement when winding the battery cell, leading to slow response speed and low accuracy. Additionally, adjusting the battery cell winding diameter is inconvenient, resulting in significant dimensional errors, which in turn affects the product yield. Utility Model Content

[0004] The purpose of this utility model is to provide a winding device that can ensure the overall accuracy of the winding device and improve its working stability. In addition, by reducing the number of parts, the weight of the winding mechanism is reduced, thereby reducing the moment of inertia and thus reducing the volume of the winding mechanism and the space required for operation. Therefore, by reducing the intermediate transmission links during the winding of the battery cell, the stability of the transmission is improved, the risk of failure is reduced, and the stability of the winding needle winding the battery cell is guaranteed.

[0005] The embodiments of this utility model are implemented as follows:

[0006] In a first aspect, this utility model provides a winding device, comprising:

[0007] Support;

[0008] A winding mechanism, comprising a support, a needle winding component, and a driving component, wherein the support is rotatably mounted on the base, and the driving component and the needle winding component are both mounted on the support. The driving component is connected to the needle winding component for driving the needle winding component to rotate.

[0009] A first driving mechanism is disposed on the support and connected to the bracket in a transmission manner. The first driving mechanism is used to drive the bracket to rotate so as to drive the needle coiling piece to change position.

[0010] A second driving mechanism is disposed on the support and connected to the needle winding component. The second driving mechanism is used to drive the axial displacement of the needle winding component.

[0011] In an optional embodiment, there are multiple winding needle components. The first driving mechanism is used to drive the bracket to rotate, so as to move the multiple winding needle components to the winding cell station, the end-adhesive application station and the unloading cell station respectively, so as to complete the winding cell operation, the end-adhesive application operation and the unloading cell operation respectively.

[0012] In an optional embodiment, the bracket includes a rotating shaft, a turntable, a support shaft, a mounting plate, and a first transmission component. There are two turntables, and the two turntables and the mounting plate are arranged alternately on the rotating shaft. The support shaft is arranged between the two turntables. One end of the needle coiling component is connected to the mounting plate, and the other end passes through the turntable and is movably arranged on the support shaft.

[0013] The first transmission component is disposed on the rotating shaft and located on the side of the turntable away from the other turntable and the mounting plate. The first transmission component is connected to the first drive mechanism in a transmission manner.

[0014] In an optional embodiment, the needle winding component includes a mounting block, a mounting shaft, an inner winding needle, an outer winding needle, and a second transmission component. The mounting block is slidably disposed on the support shaft, and the mounting shaft is rotatably disposed through the mounting block. One end of the mounting shaft is provided with the second transmission component, and the other end is connected to the inner winding needle. The outer winding needle is disposed on the outer wall of the inner winding needle, and the second transmission component is connected to the driving component for transmission.

[0015] In an optional embodiment, the needle winding component further includes a connecting plate and a follower. The connecting plate is disposed on the mounting block, and the follower is mounted on the connecting plate. The follower is used for transmission connection with the output end of the second drive mechanism.

[0016] In an optional embodiment, the driving component includes a first mounting plate, a first driving motor, a driving wheel, and a third transmission component. The first mounting plate is disposed on the coiling needle component, the first driving motor is disposed on the first mounting plate, the driving wheel is disposed at the output end of the first driving motor, the driving wheel is drivingly connected to the third transmission component, and the third transmission component is drivingly connected to the second transmission component.

[0017] In an optional embodiment, the first driving mechanism includes a second driving motor, a reducer, a second mounting plate, and a fourth transmission component. The second driving motor, the reducer, and the second mounting plate are connected in sequence. The fourth transmission component is connected to the output end of the reducer and is connected to the first transmission component to drive the needle coiling component to change position.

[0018] In an optional embodiment, the second drive mechanism includes a third drive motor and a module. The second drive mechanism is disposed on the support and is used to drive the follower. The third drive motor is used to drive the module to move axially along the rotating shaft, so as to drive the needle winding component to complete the needle insertion or removal action through the follower.

[0019] In an optional embodiment, the second drive mechanism further includes a third mounting plate, a drive cylinder, and a connector. The third mounting plate is disposed on the module, and the drive cylinder and the connector are disposed on the third mounting plate. The drive cylinder is used to drive the connector to connect with the follower. The third drive motor is used to drive the module to move axially along the rotating shaft, so as to drive the follower to move through the connector, so as to drive the needle coiling component to complete the needle insertion or removal action through the follower.

[0020] In an optional embodiment, the winding device further includes a mounting base, a connecting cover, a connecting rod, a fourth mounting plate, and a slip ring. The connecting cover, the connecting rod, and the fourth mounting plate are connected in sequence. The connecting cover is connected to the rotating shaft. The mounting base is provided with a limiting part. One end of the slip ring is provided with a rotating part, and the other end is provided with a retaining part. The rotating part is connected to the fourth mounting plate, and the retaining part is fixedly engaged with the limiting part. The end of the slip ring with the rotating part is used to connect to the drive wire, and the end with the retaining part is used to connect to the power source and data source wires.

[0021] The beneficial effects of the winding device provided in this embodiment of the present invention include: by rotatably setting the bracket on the support, the bracket is driven to rotate by the first driving mechanism, thereby realizing the repositioning of the winding needle pieces set on the bracket, so that the winding needle pieces in different positions can perform battery cell winding, tail adhesive application, or battery cell unloading operations. Specifically, when the corresponding winding needle piece moves to the battery cell winding position, the driving component drives the winding needle piece to rotate, thereby realizing the battery cell winding action; and the second driving mechanism drives the winding needle piece to move axially, so that the winding needle piece can perform needle insertion and removal operations. Therefore, the winding device provided by this invention has a simple structure. Compared with existing devices, it reduces the number of parts, thus reducing the weight of the entire winding mechanism, shrinking the device's volume, and reducing assembly steps, thereby reducing the processing difficulty of the winding device, reducing the rotational inertia during rotation, and improving the operational stability of the winding device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a first-view structural schematic diagram of the winding device provided in an embodiment of the present utility model;

[0024] Figure 2 This is a second-view structural schematic diagram of the winding device provided in an embodiment of the present utility model;

[0025] Figure 3 A schematic diagram of the support structure provided in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the winding mechanism provided in an embodiment of the present utility model;

[0027] Figure 5 A schematic diagram of the support structure provided for an embodiment of this utility model;

[0028] Figure 6 This is a schematic diagram of the coiled needle component structure provided in an embodiment of the present utility model;

[0029] Figure 7 A schematic diagram of the drive component structure provided in an embodiment of this utility model;

[0030] Figure 8 A schematic diagram of the first drive mechanism structure provided in an embodiment of this utility model;

[0031] Figure 9 This is a schematic diagram of the second drive mechanism provided in an embodiment of the present utility model;

[0032] Figure 10 This is a schematic diagram of the wire connection mechanism provided in an embodiment of the present utility model.

[0033] Icons: 10-Winding device; 100-Support; 110-Mounting hole; 120-Sliding hole; 200-Winding mechanism; 210-Bracket; 211-Rotating shaft; 212-Turntable; 213-Support shaft; 214-Mounting plate; 215-First transmission component; 220-Needle winding component; 221-Mounting block; 222-Mounting shaft; 223-Inner winding needle; 224-Outer winding needle; 225-Second transmission component; 226-Connecting plate; 227-Follower component; 230-Driver component; 231-First mounting plate; 232-First drive motor; 234 - Drive wheel; 235 - Third transmission component; 300 - First drive mechanism; 310 - Second drive motor; 320 - Reducer; 330 - Second mounting plate; 340 - Fourth transmission component; 400 - Second drive mechanism; 410 - Third drive motor; 420 - Module; 430 - Third mounting plate; 440 - Drive cylinder; 450 - Connector; 500 - Wire connection mechanism; 510 - Mounting base; 511 - Limiting part; 520 - Connecting cover; 530 - Connecting rod; 540 - Fourth mounting plate; 550 - Slip ring; 551 - Holding part. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] 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., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In the development of lithium battery equipment, improving cell quality and increasing production efficiency are the two most critical goals in the lithium battery industry. Among them, the cell winding process, as the core process that determines cell quality and production efficiency, is of paramount importance; and the performance of the winding head directly affects the quality of cell production.

[0041] However, current winding heads suffer from the following problems: their structure is complex and they contain numerous parts. Specifically, the winding head is composed of multiple precision parts, which not only have a large number of parts but also require extremely high machining and assembly precision, resulting in a cumbersome assembly process with many steps and significant accumulated errors during installation. Furthermore, the winding head itself is large in size and weight, exhibiting significant rotational inertia and requiring a large workspace. Simultaneously, the winding needles require multiple stages of transmission to achieve their movement when winding the battery cell, leading to slow response speed and low accuracy. Additionally, adjusting the battery cell winding diameter is inconvenient, resulting in significant dimensional errors, which in turn affects the product yield.

[0042] Based on the problems existing in the current technology, please refer to Figure 1 and Figure 2This utility model provides a winding device applied in the field of battery cell manufacturing. The winding device adopts an integrated support 100 and the main body of the winding mechanism is integrally machined to ensure the overall accuracy of the winding device and improve working stability. In addition, by reducing the number of parts, the weight of the winding mechanism is reduced, thereby reducing the moment of inertia and thus reducing the volume of the winding mechanism and the space required for operation. Therefore, by reducing the intermediate transmission links during battery cell winding, the stability of transmission is improved, the risk of failure is reduced, and the stability of the winding needle in winding the battery cell is guaranteed.

[0043] In detail, the winding device 10 includes a support 100, a winding mechanism 200, a first drive mechanism 300, and a second drive mechanism 400.

[0044] The winding mechanism 200 includes a bracket 210, a needle winding member 220, and a drive member 230. The bracket 210 is rotatably mounted on the support 100. The drive member 230 and the needle winding member 220 are both mounted on the bracket 210. The drive member 230 is connected to the needle winding member 220 and is used to drive the needle winding member 220 to rotate. The first drive mechanism 300 is mounted on the support 100 and is connected to the bracket 210. The first drive mechanism 300 is used to drive the bracket 210 to rotate, thereby causing the needle winding member 220 to change position. The second drive mechanism 400 is mounted on the support 100 and is connected to the needle winding member 220. The second drive mechanism 400 is used to drive the needle winding member 220 to move axially.

[0045] First, it should be noted that during the winding process of the battery cell by the winding needle assembly 220, the external mechanisms cooperating with the winding needle assembly 220 are, in sequence, multiple sets of electrode cutting devices, a diaphragm cutting device, a tail adhesive application device, and a battery cell unloading device. Specifically, the multiple sets of electrode cutting devices are used to cut the corresponding electrodes according to the timing requirements; the diaphragm cutting device is used to cut multiple sets of diaphragms according to the timing requirements; the tail adhesive application device is used to apply tail adhesive to the wound battery cell; and the battery cell unloading device assists in removing the battery cell.

[0046] In this embodiment, by rotatably mounting the bracket 210 on the support 100, the winding mechanism 200 is driven to rotate by the first driving mechanism 300, thereby enabling the repositioning of the needle winding member 220 mounted on the support 100. This allows the needle winding member 220 in different positions to perform battery cell winding, tail adhesive application, or battery cell unloading operations. When the corresponding needle winding member 220 moves to the battery cell winding position, the driving member 230 drives the needle winding member 220 to rotate, thereby achieving the battery cell winding action. The second driving mechanism 400 drives the needle winding member 220 to move axially, so that the needle winding member 220 can perform needle insertion and removal operations.

[0047] As can be seen, the winding device 10 provided by this utility model has a simple structure. Compared with the existing devices, it reduces the number of parts, thereby reducing the weight of the entire winding mechanism, reducing the volume occupied by the device, and reducing the assembly steps. This reduces the processing difficulty of the winding device, reduces the moment of inertia during rotation, and improves the stability of the winding device 10 during operation.

[0048] It should be noted that, as Figure 3 As shown, the support 100 is made by a one-piece molding process, which gives it high strength and high rigidity. Of course, in other embodiments of this utility model, the support 100 may also be made by welding or splicing, and no specific limitation is made here.

[0049] Furthermore, there are multiple winding needle components 220. The first drive mechanism 300 is used to drive the bracket 210 to rotate, so as to drive the multiple winding needle components 220 to move to the winding cell station, the tail glue application station and the unloading cell station respectively, so as to complete the winding cell operation, the tail glue application operation and the unloading cell operation respectively.

[0050] It should be noted that the winding needle component 220 typically has a winding cell station, a tail glue application station, and a cell unloading station. In practical applications, when the first drive mechanism 300 drives the bracket 210 to rotate, the bracket 210 drives the winding needle component 220 to move to a specific position for winding cell operations. That is, the winding needle component 220 is located at the winding cell station at this time. The tail glue application station and the cell unloading station are similar and will not be described in detail here.

[0051] In practical applications, multiple coiled needle components 220 can be divided into two groups, three groups, or even more groups.

[0052] like Figure 2 As shown, there are three coiling needles 220. The three coiling needles 220 are divided into two groups. One coiling needle is used to coil the battery cell, that is, when the battery cell moves to the battery cell coiling station, the battery cell coiling operation is performed. The other two coiling needles are in one group, which are used for applying tail adhesive and uncoiling the battery cell, respectively.

[0053] Not only that, such as Figure 4 As shown, there are three coiling needle components 220, which are divided into three groups. The three groups of coiling needle components 220 are used for coiling the battery cell, attaching the tail adhesive, and removing the battery cell, respectively.

[0054] The quantity and grouping of the needle coiling parts 220 can be adjusted according to actual usage requirements, and no specific limit is set here.

[0055] Furthermore, such as Figure 5As shown, the bracket 210 includes a rotating shaft 211, a turntable 212, a support shaft 213, a mounting plate 214, and a first transmission component 215. There are two turntables 212, and the two turntables 212 and the mounting plate 214 are arranged alternately on the rotating shaft 211. The support shaft 213 is arranged between the two turntables 212. One end of the needle coiling component 220 is connected to the mounting plate 214, and the other end passes through the turntable 212 and is movably arranged on the support shaft 213. The mounting plate 214 can be used to install and fix the needle coiling component 220. The first transmission component 215 is arranged on the rotating shaft 211 and is located on the side of the turntable 212 away from the other turntable 212 and the mounting plate 214.

[0056] In this embodiment, the support 100 is provided with mounting holes 110, and the two ends of the rotating shaft 211 are respectively disposed in two opposite mounting holes 110 of the support 100.

[0057] The first transmission component 215 is connected to the first drive mechanism 300 to rotate under the drive of the first drive component 230, thereby driving the needle coiling component 220 to change position.

[0058] It can be understood that there are multiple support shafts 213, and multiple support shafts 213 are all set between two turntables 212. The multiple support shafts 213 are evenly arranged around the outside of the rotating shaft 211. The support shafts 213 can support the needle winding component 220, and the needle winding component 220 can slide along the length direction of the support shaft 213.

[0059] Furthermore, multiple reinforcing ribs can be installed between the two turntables 212 to improve the structural rigidity and stability of the support 210.

[0060] Furthermore, such as Figure 6 As shown, the needle winding component 220 includes a mounting block 221, a mounting shaft 222, an inner winding needle 223, an outer winding needle 224, and a second transmission component 225. The mounting block 221 is slidably disposed on the support shaft 213, and the mounting shaft 222 is rotatably disposed through the mounting block 221. One end of the mounting shaft 222 is provided with the second transmission component 225, and the other end is connected to the inner winding needle 223. The outer winding needle 224 is disposed on the outer wall of the inner winding needle 223, and the second transmission component 225 is connected to the driving component 230 for transmission.

[0061] In this embodiment, the mounting block 221 is provided with two mounting holes, which are respectively slidably engaged with the two support shafts 213 through linear bearings, thereby improving the stability of the needle coil 220 when sliding along the support shafts 213.

[0062] Furthermore, the needle coiling component 220 also includes a connecting plate 226 and a follower 227. The connecting plate 226 is disposed on the mounting block 221, and the follower 227 is mounted on the connecting plate 226. The follower 227 is used for transmission connection with the output end of the second drive mechanism 400.

[0063] In this embodiment, the follower 227 is a roller structure. Under the drive of the second drive mechanism 400, the follower 227 is driven to move axially along the support shaft 213. In this way, the follower 227 drives the mounting shaft 222, the inner winding needle 223 and the outer winding needle 224 to slide back and forth, thereby realizing the battery cell installation operation.

[0064] Furthermore, such as Figure 7 As shown, the driving component 230 includes a first mounting plate 231, a first driving motor 232, a driving wheel 234, and a third transmission component 235. The first mounting plate 231 is disposed on the mounting block 221, the first driving motor 232 is disposed on the first mounting plate 231, the driving wheel 234 is disposed at the output end of the first driving motor 232, the driving wheel 234 is connected to the third transmission component 235, and the third transmission component 235 is connected to the second transmission component 225.

[0065] In this embodiment, the first drive motor 232 drives the drive wheel 234 to rotate, and the drive wheel 234 drives the third transmission component 235 to rotate. The third transmission component 235 meshes with the second transmission component 225, thereby driving the mounting shaft 222 to rotate, thereby driving the inner winding needle 223 and the outer winding needle 224 to rotate, thus realizing the battery cell winding operation.

[0066] It is worth mentioning that the first mounting plate 231 is fixedly mounted on the mounting block 221. When the second drive mechanism 400 drives the needle coiling component 220 to slide axially along the support shaft 213, the drive component 230 and the needle coiling component 220 move synchronously.

[0067] In other embodiments of this utility model, the first drive motor 232 can be directly connected to the mounting shaft 222 via a coupling to directly drive the mounting shaft 222 to rotate.

[0068] Furthermore, such as Figure 8 As shown, the first drive mechanism 300 includes a second drive motor 310, a reducer 320, a second mounting plate 330, and a fourth transmission component 340. The second drive motor 310, the reducer 320, and the second mounting plate 330 are connected in sequence. The fourth transmission component 340 is connected to the output end of the reducer 320 and is connected to the first transmission component 215 to drive the needle coiling component 220 to change positions.

[0069] In this embodiment, the second mounting plate 330 is mounted on the support 100. The second drive motor 310 drives the reducer 320 to move, and the output end of the reducer 320 drives the fourth transmission member 340. The fourth transmission member 340 meshes with the first transmission member 215, thereby driving the bracket 210 to rotate, and thereby driving the needle coiling member 220 to change position.

[0070] Furthermore, such as Figure 9 As shown, the second drive mechanism 400 includes a third drive motor 410 and a module 420. The second drive mechanism 400 is disposed on the support 100 and is used to drive the follower 227. The third drive motor 410 is used to drive the module 420 to move axially along the rotating shaft 211, so as to drive the needle coiling member 220 to complete the needle insertion or needle removal action through the follower 227.

[0071] In this embodiment, the third drive motor 410 drives the module 420 to slide along the axial direction of the needle coiling component 220, thereby driving the needle coiling component 220 to move forward or backward relative to the bracket 210, thereby completing the needle insertion and removal actions of the needle coiling component 220.

[0072] Furthermore, the second drive mechanism 400 also includes a third mounting plate 430, a drive cylinder 440, and a connector 450. The third mounting plate 430 is disposed on the module 420, and the drive cylinder 440 and the connector 450 are disposed on the third mounting plate 430. The drive cylinder 440 is used to drive the connector 450 to connect with the follower 227. The third drive motor 410 is used to drive the module 420 to move axially along the rotating shaft 211, so as to drive the follower 227 to move through the connector 450, so as to drive the needle coiling member 220 to complete the needle insertion or removal action through the follower 227.

[0073] In this embodiment, the support 100 is provided with a sliding hole 120, and the third drive motor 410 is located next to the sliding hole 120 of the support 100 so that the module 420 is located at the sliding hole 120. When the first drive mechanism 300 drives the bracket 210 to rotate and drive the needle coiling member 220 to the position corresponding to the second drive mechanism 400, the repositioning is completed. In this case, the drive cylinder 440 drives the connecting member 450 to move toward the follower 227 and engage, so that under the driving action of the third drive motor 410, the follower 227, the mounting block 221, the inner needle coiling member 223 and the outer needle coiling member 224 slide synchronously, thereby realizing the needle coiling member insertion or removal action.

[0074] It should be noted that the second drive mechanism 400 only drives the needle coiling piece 220 that moves to the corresponding workstation, and does not drive all the needle coiling pieces 220 to slide at the same time.

[0075] In detail, in practical applications, before the winding of the battery cell begins, the first drive mechanism 300 drives the bracket 210 to rotate so that the winding needle piece 220 is positioned at the lower battery cell station. The third drive motor 410 drives the connector 450 to move the follower 227 forward relative to the bracket 210 to perform the needle insertion action, and connects the winding needle piece 220, which has completed the needle insertion, to the mounting plate 214. The mounting plate 214 assists in supporting the winding needle piece 220, thereby improving the accuracy of the winding needle piece 220 and the stability of the winding battery cell.

[0076] Once a battery cell is wound, the first drive drives the bracket 210 to rotate, thereby moving the winding needle component 220 to the next battery cell position. The third drive motor 410 drives the connector 450 to move the follower 227 backward, performing the needle removal action.

[0077] Alternatively, module 420 can be a lead screw and guide rail structure.

[0078] Furthermore, such as Figure 10 As shown, the winding device 10 also includes a wire connection mechanism 500, which includes a mounting base 510, a connecting cover 520, a connecting rod 530, a fourth mounting plate 540, and a slip ring 550. The connecting cover 520, the connecting rod 530, and the fourth mounting plate 540 are connected in sequence. The connecting cover 520 is connected to the rotating shaft 211. The mounting base 510 is provided with a limiting part 511. One end of the slip ring 550 is provided with a rotating part, and the other end is provided with a holding part 551. The rotating part is connected to the fourth mounting plate 540, and the holding part 551 is fixedly engaged with the limiting part 511. The end of the slip ring 550 with the rotating part is used to connect to the wire of the driving member 230, and the end with the holding part 551 is used to connect to the wire of the power source and the data source.

[0079] In this embodiment, one end of the slip ring 550 is connected to the drive component 230 wire, and the other end is connected to the power source and data source wire, thereby providing a power source for it.

[0080] In summary, this utility model provides a winding device. By rotatably mounting the bracket 210 on the support 100, the bracket 210 is driven to rotate by the first drive mechanism 300, thereby enabling the repositioning of the winding needle component 220 mounted on the bracket 210. This allows the winding needle component 220 at different work positions to perform battery cell winding, tail adhesive application, or battery cell unloading operations. When the corresponding winding needle component 220 moves to the battery cell winding work position, the drive component 230 drives the winding needle component 220 to rotate, thereby realizing the battery cell winding action. The second drive mechanism 400 drives the winding needle component 220 to move axially, enabling the winding needle component 220 to perform needle insertion and removal operations. As can be seen, the winding device 10 provided by this utility model has a simple structure. Compared with existing devices, it reduces the number of parts, thus reducing the weight of the entire winding mechanism, shrinking the device's volume, and reducing assembly steps. This reduces the processing difficulty of the winding device, lowers the rotational inertia during rotation, and improves the operational stability of the winding device 10.

[0081] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A winding device, characterized by include: Support; A winding mechanism, comprising a support, a needle winding component, and a driving component, wherein the support is rotatably mounted on the base, and the driving component and the needle winding component are both mounted on the support. The driving component is connected to the needle winding component for driving the needle winding component to rotate. A first driving mechanism is disposed on the support and connected to the bracket in a transmission manner. The first driving mechanism is used to drive the bracket to rotate so as to drive the needle coiling piece to change position. A second driving mechanism is disposed on the support and connected to the needle winding component. The second driving mechanism is used to drive the axial displacement of the needle winding component.

2. The winding device according to claim 1, characterized in that The number of the winding needle components is multiple. The first driving mechanism is used to drive the bracket to rotate, so as to move the multiple winding needle components to the winding cell station, the end-adhesive application station and the unloading cell station respectively, so as to complete the winding cell operation, the end-adhesive application operation and the unloading cell operation respectively.

3. The winding device according to claim 1, characterized in that The bracket includes a rotating shaft, a turntable, a support shaft, a mounting plate, and a first transmission component. There are two turntables, and the two turntables and the mounting plate are arranged alternately on the rotating shaft. The support shaft is arranged between the two turntables. One end of the needle coiling component is connected to the mounting plate, and the other end passes through the turntable and is movably arranged on the support shaft. The first transmission component is disposed on the rotating shaft and located on the side of the turntable away from the other turntable and the mounting plate. The first transmission component is connected to the first drive mechanism in a transmission manner.

4. The winding device according to claim 3, characterized in that The needle winding component includes a mounting block, a mounting shaft, an inner winding needle, an outer winding needle, and a second transmission component. The mounting block is slidably disposed on the support shaft, and the mounting shaft is rotatably disposed through the mounting block. One end of the mounting shaft is provided with the second transmission component, and the other end is connected to the inner winding needle. The outer winding needle is disposed on the outer wall of the inner winding needle, and the second transmission component is connected to the driving component for transmission.

5. The winding device according to claim 4, characterized in that The needle winding component also includes a connecting plate and a follower. The connecting plate is disposed on the mounting block, and the follower is mounted on the connecting plate. The follower is used for transmission connection with the output end of the second drive mechanism.

6. The winding device according to claim 4, characterized in that The driving component includes a first mounting plate, a first driving motor, a driving wheel, and a third transmission component. The first mounting plate is disposed on the needle winding component, the first driving motor is disposed on the first mounting plate, the driving wheel is disposed at the output end of the first driving motor, the driving wheel is drivingly connected to the third transmission component, and the third transmission component is drivingly connected to the second transmission component.

7. The winding device according to claim 4, characterized in that The first driving mechanism includes a second driving motor, a reducer, a second mounting plate, and a fourth transmission component. The second driving motor, the reducer, and the second mounting plate are connected in sequence. The fourth transmission component is connected to the output end of the reducer and is connected to the first transmission component to drive the needle coiling component to change position.

8. The winding device according to claim 5, characterized in that, The second drive mechanism includes a third drive motor and a module. The second drive mechanism is disposed on the support and is used to drive the follower. The third drive motor is used to drive the module to move axially along the rotating shaft, so as to drive the needle winding component to complete the needle insertion or removal action through the follower.

9. The winding device according to claim 8, characterized in that The second drive mechanism further includes a third mounting plate, a drive cylinder, and a connector. The third mounting plate is disposed on the module, and the drive cylinder and the connector are disposed on the third mounting plate. The drive cylinder is used to drive the connector to connect with the follower. The third drive motor is used to drive the module to move axially along the rotating shaft, so as to drive the follower to move through the connector, so as to drive the needle coiling component to complete the needle insertion or removal action through the follower.

10. The winding device according to claim 3, characterized in that The winding device further includes a mounting base, a connecting cover, a connecting rod, a fourth mounting plate, and a slip ring. The connecting cover, the connecting rod, and the fourth mounting plate are connected in sequence. The connecting cover is connected to the rotating shaft. The mounting base is provided with a limiting part. One end of the slip ring is provided with a rotating part, and the other end is provided with a retaining part. The rotating part is connected to the fourth mounting plate, and the retaining part is fixedly engaged with the limiting part. The end of the slip ring with the rotating part is used to connect to the drive wire, and the end with the retaining part is used to connect to the power source and data source wires.

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