Winding device and battery cell processing equipment

Abstract

The present application relates to a kind of winding device and battery cell processing equipment, winding device includes rotating mechanism, winding needle component and telescopic mechanism.The telescopic mechanism is arranged in blanking station, and the driving end of telescopic mechanism can be engaged or separated with any winding needle component entering blanking station.When winding needle component rotates to blanking station, it can be first engaged with the driving end of telescopic mechanism, then by telescopic mechanism drive its axial back, until the end of winding needle component is suspended to let out blanking path.After completing blanking, winding needle component resets and is separated from the driving end of telescopic mechanism, and can continue to circulate.As not need to be configured for each winding needle component alone to realize the structure of telescopic, so it can greatly reduce the number of parts.Therefore, the above-mentioned winding device and battery cell processing equipment can simplify structure under the premise of facilitating blanking.

Description

Technical Field

[0001] This invention relates to the field of lithium battery equipment technology, and in particular to a winding device and a cell processing equipment. Background Technology

[0002] The winding device can wind and composite the positive electrode sheet, negative electrode sheet, and separator, and form a wound battery cell after applying adhesive at the end. The winding device is typically equipped with a winding station, an adhesive application station, and a unloading station. Three sets of winding needle assemblies can rotate synchronously under the drive of a turret, and sequentially switch between the three stations to complete the winding, adhesive application, and unloading operations of the battery cell in steps. During the unloading operation, the winding needle assembly must first be driven to retract axially, so that one end is suspended in the air, thus making axial removal path available for the battery cell. However, winding devices in related technologies usually require each set of winding needle assemblies to be equipped with an independent telescopic mechanism to achieve the above retraction action. This not only increases the number of parts and assembly difficulty, but also makes the overall structure more complex, which is not conducive to reducing manufacturing costs and maintenance difficulty. Summary of the Invention

[0003] Based on this, it is necessary to address the problem by providing a winding device and cell processing equipment that can simplify the structure while facilitating material feeding.

[0004] A winding device includes a rotating mechanism, a winding needle assembly, and a telescopic mechanism; the winding needle assembly is mounted on the rotating mechanism and can revolve around a first rotating axis under the drive of the rotating mechanism to circulate between a winding station, an adhesive application station, and a material unloading station; the telescopic mechanism is disposed at the material unloading station.

[0005] In one embodiment, the drive end of the telescopic mechanism is capable of engaging or disengaging with any of the needle coiling assemblies that enter the unloading station.

[0006] In one embodiment, the telescopic mechanism is capable of driving the engaged needle coil assembly to move along its own axial direction.

[0007] In one embodiment, the drive end of the telescopic mechanism is provided with a coupling member, each of the needle coiling assemblies is provided with a mating member, and the mating member can engage with the coupling member.

[0008] In one embodiment, as the needle winding assembly enters the unloading station, it can drive the mating part and the engaging part to engage the drive end of the telescopic mechanism with the needle winding assembly.

[0009] In one embodiment, as the needle coiling assembly moves out of the unloading station, it can cause the mating part to separate from the connecting part, so that the drive end of the telescopic mechanism can be separated from the needle coiling assembly.

[0010] In one embodiment, the end of the connector has a notch, and the mating member can engage with the notch.

[0011] In one embodiment, the mating element is configured as a cam.

[0012] In one embodiment, the telescopic mechanism further includes a mounting plate and a telescopic drive assembly, the telescopic drive assembly being disposed on the mounting plate and drivingly connected to the coupling member.

[0013] In one embodiment, the telescopic drive assembly is disposed on the side of the mounting plate opposite to the needle coil assembly. The mounting plate has a strip groove extending axially along the needle coil assembly. The connecting member is disposed in the strip groove, with one end connected to the telescopic drive assembly and the other end extending to the side of the mounting plate facing the needle coil assembly.

[0014] In one embodiment, the rotating mechanism includes a first rotating mechanism, which includes a first driving component, a rotating rod, and an annular track. The first driving component is pulsatorically connected to the rotating rod. The annular track is arranged around the circumference of the rotating rod, and both the annular track and the rotating rod are coaxial with the first rotation axis. Each of the needle coiling components can be slidably mounted on the annular track and can slide along the annular track under the drive of the rotating rod.

[0015] In one embodiment, a plurality of the annular tracks are spaced apart along the axial direction of the rotating rod, and each of the needle coiling assemblies is slidably connected to the plurality of the annular tracks via a plurality of connecting blocks.

[0016] In one embodiment, each of the needle winding assemblies further includes a slider, and a guide rod is provided for each of the needle winding assemblies. The guide rod extends along the axial direction of the rotating rod and is fixedly connected to the plurality of connecting blocks. The slider is slidably sleeved on the guide rod.

[0017] In one embodiment, each of the needle coiling assemblies is provided with a mating member capable of engaging or disengaging with the drive end of the telescopic mechanism, the mating member being disposed on the sliding member.

[0018] In one embodiment, the rotating rod is capable of engaging or disengaging with each of the needle winding assemblies and can drive the engaged needle winding assembly to slide along the annular track; the rotating mechanism further includes a second rotating mechanism, the drive end of which can selectively engage with one of the needle winding assemblies.

[0019] In one embodiment, a first clutch mechanism is provided between each of the needle winding assemblies and the rotating rod, and each of the needle winding assemblies is connected to a first retaining member. The first clutch mechanism includes a first driving member assembled on the rotating rod and a first sliding plate that is pulsatorically connected to the first driving member. A first slot adapted to the first retaining member is provided on the first sliding plate.

[0020] In one embodiment, the first drive member can drive the first sliding plate to slide along the rotating rod and force the first retaining member to engage or disengage from the first slot, so that the rotating rod engages or disengages from the corresponding needle coiling assembly.

[0021] In one embodiment, the second rotating mechanism includes a second driving component and a swing plate, the swing plate being rotatably sleeved on the rotating rod and connected to the second driving component in a transmission manner, and the swing plate being able to selectively engage with the needle winding component.

[0022] In one embodiment, the swing plate is provided with a second clutch mechanism, and each of the needle coiling assemblies is connected to a second holding member. The second clutch mechanism includes a second driving member assembled on the swing plate and a second sliding plate that is pulsatorically connected to the second driving member. The second sliding plate is provided with a second slot that is adapted to the second holding member.

[0023] In one embodiment, the second drive member can drive the second sliding plate to slide along the swing plate and force the second holding member to engage or disengage from the second slot, so that the swing plate engages or disengages from the corresponding winding needle assembly.

[0024] In one embodiment, a support plate is also provided corresponding to each of the needle coiling assemblies, the needle coiling assemblies being slidably mounted on the corresponding support plate and being drivenly connected to the rotating mechanism through the support plate.

[0025] A battery cell processing apparatus includes a winding device as described in any of the preferred embodiments above.

[0026] In the aforementioned winding device and cell processing equipment, the telescopic mechanism is located at the unloading station, and the drive end of the telescopic mechanism can engage or disengage with any winding needle assembly entering the unloading station. When the winding needle assembly rotates to the unloading station, it first engages with the drive end of the telescopic mechanism, and then the telescopic mechanism drives it to retract axially until the end of the winding needle assembly is suspended to clear the unloading path. After unloading is completed, the winding needle assembly resets and disengages from the drive end of the telescopic mechanism, allowing the cycle to continue. Since it is not necessary to configure a telescopic structure for each winding needle assembly individually, the number of parts can be significantly reduced. Therefore, the aforementioned winding device and cell processing equipment can simplify the structure while facilitating unloading. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the winding device in one embodiment of the present invention; Figure 2 for Figure 1 A partial structural diagram of the winding device shown, illustrating the transmission cooperation between the winding needle assembly and the first rotating mechanism. Figure 3 for Figure 1 A partial structural diagram of the winding device shown, illustrating the transmission cooperation between the winding needle assembly and the second rotating mechanism; Figure 4 for Figure 2 An enlarged schematic diagram of local area A in the shown local structure; Figure 5 for Figure 1 A partial structural diagram of the winding device in which the needle winding assembly at the unloading station cooperates with the telescopic mechanism. Figure 6 for Figure 5 Front view of the local structure shown; Figure 7 for Figure 6 An enlarged schematic diagram of local area B in the shown local structure.

[0029] Explanation of reference numerals in the attached figures: Winding device-10; First rotating mechanism-100; First drive assembly-110; Rotating rod-120; Circular track-130; Connecting block-140; Guide rod-150; Second rotating mechanism-200; Needle winding assembly-300; Needle winding body-310; End support-320; Fitting part-330; Sliding part-340; First clutch mechanism-400; First holding part-410; First drive part-420; First sliding part-420; Plate-430; First slot-431; Second clutch mechanism-500; Second holding member-510; Second driving member-520; Second sliding plate-530; Second slot-531; Bearing plate-600; Collar-610; Telescopic mechanism-700; Connecting member-710; Notch-711; Mounting plate-720; Strip groove-721; Telescopic drive assembly-730; Telescopic motor-731; Lead screw-732; Nut seat-733. Detailed Implementation

[0030] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0036] Please see Figure 1 and Figure 2 The present invention provides a winding device 10 and a battery cell processing equipment. The battery cell processing equipment includes the winding device 10.

[0037] In addition to the winding device 10, the aforementioned battery cell processing equipment generally includes functional modules such as an adhesive application device (not shown) and a blanking device (not shown). The winding device 10 can use electrode strips and separator strips to continuously wind and form battery cells. The winding device 10 is surrounded by a winding station, an adhesive application station, and a blanking station. The battery cells processed at the winding station first enter the adhesive application station, where the adhesive application device completes the final adhesive application, and then the cells enter the blanking station. Finally, the blanking device unloads and stores or transfers the cells to subsequent processes.

[0038] Please refer to the following: Figure 5 and Figure 6 In one embodiment of the present invention, the winding device 10 includes a rotating mechanism, a winding needle assembly 300, and a telescopic mechanism 700.

[0039] The needle winding assembly 300 is mounted on the rotating mechanism and can revolve around a first rotation axis under the drive of the rotating mechanism. The needle winding assembly 300 generally includes a needle winding body 310, the outer surface of which is approximately arc-shaped. The winding device 10 generally also includes a needle winding drive mechanism 800, which can drive the needle winding body 310 to rotate around its own axis. During the winding operation, the starting ends of the electrode strip and the separator strip are first fixed by the needle winding assembly 300, and then the needle winding drive mechanism 800 drives the needle winding body 310 to rotate around its own axis, so that the electrode strip and the separator strip are wound around the outer periphery of the needle winding body 310 and gradually form a battery cell.

[0040] Driven by the rotating mechanism, the needle winding assembly 300 can sequentially switch between the winding station, the adhesive application station, and the unloading station to perform winding, adhesive application, and unloading operations respectively. Specifically, after a needle winding assembly 300 completes the winding of the battery cell at the winding station, the rotating mechanism can rotate it to the adhesive application station for final adhesive application, and then it enters the unloading station to remove the finished battery cell.

[0041] One end of the needle winding body 310 is connected to the needle winding drive mechanism 800, while the other end is rotatably mounted on a support structure, such as a bearing housing. When unloading the battery cell from the needle winding assembly 300 at the unloading station, the entire needle winding body 310 must first be driven to retract axially, so that the end of the needle winding body 310 away from the needle winding drive mechanism 800 (i.e., the free end) is completely disengaged from the support structure that previously provided rotational support. In this way, the free end of the needle winding body 310 is suspended in the air, thus allowing an axial path for the battery cell to be removed.

[0042] Specifically, in this embodiment, the winding device 10 further includes a support plate 600 corresponding to each needle winding assembly 300. The needle winding assembly 300 is slidably mounted on the corresponding support plate 600 and is connected to the rotating mechanism via the support plate 600. The support plate 600 is generally elongated and extends in a direction parallel to the first rotation axis. This elongated structure provides more mounting points. The rotating mechanism drives the corresponding needle winding assembly 300 to revolve around the first rotation axis via the support plate 600. Moreover, when performing the unloading operation on the needle winding assembly 300, it can be achieved by driving the needle winding assembly 300 to slide along the support plate 600.

[0043] More specifically, the needle coil assembly 300 also includes an end support 320, which may be cylindrical to provide a larger support area. The needle coil body 310 can be slidably mounted on the support plate 600 via the end support 320, thereby enabling axial movement. The end support 320 can be slidably connected to the support plate 600 via a guide rail and slider. One end of the needle coil body 310 is rotatably connected to the end support 320 and is connected to the needle coil drive mechanism 800; the other end, the free end, is rotatably connected to the support structure on the support plate 600. During the unloading operation of the needle coil assembly 300, by driving the entire needle coil assembly 300 to slide along the support plate 600, the free end of the needle coil body 310 can be disengaged from the support structure of the support plate 600.

[0044] To improve production efficiency, at least two needle winding assemblies 300 are generally provided. Specifically, in this embodiment, three needle winding assemblies 300 are provided, which are circumferentially distributed along the first rotation axis. Each needle winding assembly 300 can circulate between the winding station, the adhesive application station, and the unloading station under the drive of the aforementioned rotation mechanism. In this way, it can be ensured that the three needle winding assemblies 300 are respectively in the winding station, the adhesive application station, and the unloading station within the same time period, thereby realizing the parallel operation of the three processes of winding, adhesive application, and unloading, which is beneficial to improving production efficiency.

[0045] The telescopic mechanism 700 is disposed at the unloading station, and the drive end of the telescopic mechanism 700 can engage or disengage with any of the needle winding assemblies 300 that enter the unloading station. Moreover, when the telescopic mechanism 700 engages with the needle winding assembly 300, it can drive the engaged needle winding assembly 300 to move along its own axial direction.

[0046] In the actual workflow, after a winding needle assembly 300 completes the winding of the battery cell at the winding station and the final adhesive application at the adhesive application station, the rotating mechanism brings it to the unloading station. At this time, the drive end of the telescopic mechanism 700 first engages with the winding needle assembly 300, and then drives the entire assembly to retract axially until the free end of the winding needle body 310 is completely detached from the support structure, thus placing the free end of the winding needle body 310 in a suspended state, making axial path available for the removal of the battery cell. Subsequently, the unloading device can smoothly unload the battery cell from the winding needle body 310 along this path. After unloading is completed, the telescopic mechanism 700 can drive the winding needle assembly 300 to move axially in the opposite direction to reset, allowing its free end to re-insert into the support structure and restore the rotating support state. Then, after the telescopic mechanism 700 separates from the winding needle assembly 300, the winding needle assembly 300 can continue to participate in the next cycle of revolution.

[0047] It should be noted that in other embodiments, the telescopic mechanism 700 may only drive the needle winding assembly 300 to retract without actually driving the needle winding assembly 300. In this case, a reset member (not shown) may be provided, and the needle winding assembly 300 may also be reset under the action of the reset member, allowing its free end to be reinserted into the support structure.

[0048] Since only one telescopic mechanism 700 needs to be installed at the unloading station to sequentially perform axial drive operations on all needle winding assemblies 300, there is no need to configure a separate telescopic structure for each needle winding assembly 300. This significantly reduces the number of parts, lowers manufacturing costs and assembly complexity, and simplifies the structure while facilitating unloading. Moreover, the reduction in the number of parts also reduces the weight and rotational inertia of each needle winding assembly 300, which is beneficial for improving the accuracy of revolution speed and position control.

[0049] The drive end of the telescopic mechanism 700 and the needle winding assembly 300 can be connected by a detachable connection structure such as pneumatic grippers, electromagnetic attraction or pin docking to ensure reliable transmission of telescopic driving force and to quickly detach after feeding, so as to avoid interfering with the normal revolution of the needle winding assembly 300.

[0050] Please refer to the following: Figure 7 Specifically, in this embodiment, the driving end of the telescopic mechanism 700 is provided with a connecting member 710, and each needle winding assembly 300 is provided with a mating member 330, which can engage with the connecting member 710. When the mating member 330 engages with the connecting member 710, the driving end of the telescopic mechanism 700 engages with the needle winding assembly 300, and the telescopic mechanism 700 can transmit a telescopic driving force along its axial direction to the needle winding assembly 300 through the connecting member 710 and the mating member 330; when separation is required, the connecting member 710 disengages from the mating member 330, and the needle winding assembly 300 can continue to rotate with the rotating mechanism.

[0051] Furthermore, in this embodiment, during the process of the needle winding assembly 300 entering the unloading station, it can drive the mating part 330 and the engaging part 710 to engage, so that the driving end of the telescopic mechanism 700 and the needle winding assembly 300 can be engaged.

[0052] In other words, the rotation of the needle winding assembly 300 automatically engages the mating part 330 and the connecting part 710, thereby connecting the drive end of the telescopic mechanism 700 with the needle winding assembly 300. This eliminates the need for an additional active docking structure and separate control commands, simplifying the structure and reducing control complexity. Furthermore, once the needle winding assembly 300 rotates to its designated position at the unloading station, the connecting part 710 and the mating part 330 are already engaged, allowing the telescopic mechanism 700 to immediately initiate axial retraction, clearing the unloading path for the unloading device to smoothly remove the battery cell. The engagement process between the drive end of the telescopic mechanism 700 and the needle winding assembly 300 is synchronized with the rotational motion, thus eliminating extra time and further improving production cycle time.

[0053] Furthermore, during the process of the needle winding assembly 300 moving out of the unloading station, it can cause the mating part 330 and the connecting part 710 to separate, so that the driving end of the telescopic mechanism 700 is separated from the needle winding assembly 300. Similarly, as the needle winding assembly 300 completes unloading and continues to rotate, it can cause the mating part 330 and the connecting part 710 to naturally disengage, so that the driving end of the telescopic mechanism 700 is automatically separated from the needle winding assembly 300. Therefore, no active control or additional action is required. The needle winding assembly 300 completes disengagement as it rotates out of the unloading station and then resumes its free revolution state.

[0054] More specifically, in this embodiment, the end of the connecting member 710 is provided with a notch 711, and the mating member 330 can be inserted into the notch 711. The shape of the notch 711 can be designed as V-shaped, U-shaped or arc-shaped, and the two sides of the notch 711 face the direction in which the needle coil assembly 300 enters or moves out of the unloading station, so that the mating member 330 can slide into the notch 711 or disengage from the notch 711 when it rotates with the needle coil assembly 300.

[0055] Preferably, the mating part 330 is configured as a cam. The cam can be configured as a cylindrical or irregularly shaped block with a guide bevel, and its outer diameter forms a clearance fit or a slight interference fit with the inner wall of the notch 711 to ensure the reliability of the axial transmission along the needle coil assembly 300 after it is engaged.

[0056] Please refer to it again. Figure 5 and Figure 7 In this embodiment, the telescopic mechanism 700 further includes a mounting plate 720 and a telescopic drive assembly 730, which is disposed on the mounting plate 720 and is connected to the coupling member 710 in a transmission manner.

[0057] The mounting plate 720 serves as a support base and is fixedly installed at the unloading station. The telescopic drive assembly 730 is mounted on the mounting plate 720, and its output end is connected to the engaging member 710 for transmission, providing a telescopic driving force along the axial direction of the needle coil assembly 300. When the engaging member 710 engages with the mating member 330, the telescopic drive assembly 730 drives the engaging member 710 to move axially, thereby causing the entire needle coil assembly 300 to retract or reset along its own axial direction.

[0058] The telescopic drive assembly 730 can be equipped with various drive forms, such as cylinders and electric cylinders, depending on the actual working conditions. Preferably, the telescopic drive assembly 730 adopts a motor-threaded screw pair, specifically including a telescopic motor 731, a screw 732, and a nut seat 733. The telescopic motor 731 is fixedly mounted on the mounting plate 720, and its output shaft is coaxially connected to the screw 732. The screw 732 is rotatably supported in a bearing seat (not shown) on the mounting plate 720. The nut seat 733 is sleeved on the screw 732 and forms a threaded engagement with the screw 732. The connecting piece 710 is fixedly connected to the nut seat 733. When the telescopic motor 731 rotates, it can drive the screw 732 to rotate. The nut seat 733 can then move linearly along the axial direction under the drive of the screw 732, thereby driving the connecting piece 710 and the needle coil assembly 300 fixed thereto to move forward and backward along the axial direction.

[0059] The aforementioned motor threaded screw pair has a self-locking characteristic, so the telescopic drive assembly 730 does not require an additional brake to prevent the needle winding assembly 300 from accidentally moving during the unloading process, thus improving safety. Furthermore, the screw pair has high transmission precision, so the telescopic drive assembly 730 can also achieve precise control of the stroke of the needle winding assembly 300, avoiding damage to the support structure or interference with the unloading path due to over- or under-retraction.

[0060] Furthermore, in this embodiment, the telescopic drive assembly 730 is disposed on the side of the mounting plate 720 facing away from the needle coil assembly 300. The mounting plate 720 has a strip groove 721 extending axially along the needle coil assembly 300. The connecting member 710 is disposed in the strip groove 721, with one end connected to the telescopic drive assembly 730 and the other end extending to the side of the mounting plate 720 facing the needle coil assembly 300.

[0061] By arranging the telescopic drive assembly 730 on the back side of the mounting plate 720 and extending the working end of the connector 710 to the front side, space utilization can be improved, making the overall structure more compact. Furthermore, the strip groove 721, in addition to serving as a channel for the connector 710 to pass through, also functions as a limiting and guiding element. Since the strip groove 721 extends axially along the needle winding assembly 300, its two side walls constrain the movement of the connector 710, ensuring that the connector 710 can only move linearly along the axial direction under the drive of the telescopic drive assembly 730, without swaying or twisting. When the telescopic mechanism 700 drives the needle winding assembly 300 to retract or reset as a whole, the strip groove 721 can effectively resist the radial force generated by the offset of the needle winding assembly 300's center of gravity or uneven support friction, ensuring the linearity and smoothness of the telescopic movement.

[0062] Please refer to it again. Figure 1 and Figure 2 In this embodiment, the rotating mechanism includes a first rotating mechanism 100, which includes a first driving assembly 110, a rotating rod 120, and an annular track 130. The first driving assembly 110 is pulsatorically connected to the rotating rod 120, and the annular track 130 is arranged circumferentially around the rotating rod 120. Both the annular track 130 and the rotating rod 120 are coaxial with the first rotation axis. Each needle coiling assembly 300 is slidably mounted on the annular track 130 and can slide along the annular track 130 under the drive of the rotating rod 120.

[0063] Specifically, the first drive assembly 110 can employ a servo motor with a reducer, and connect to the rotating rod 120 via gear transmission, synchronous belt transmission, or coupling to precisely control the rotation speed, angle, and start / stop of the rotating rod 120. The needle winding assembly 300 can achieve sliding engagement with the annular track 130 through a slider or similar structure. The first rotating mechanism 100 generally also includes a bracket (not shown), which is positioned along the annular track 130 to provide support for it. Optionally, the telescopic mechanism 700 can also be fixedly connected to the bracket; specifically, the telescopic mechanism 700 is fixedly connected to the bracket via a mounting plate 720.

[0064] The driving end of the first rotating mechanism 100 is the rotating rod 120. When the first driving assembly 110 drives the rotating rod 120 to rotate around its own axis, that is, the first rotating axis, the needle winding assembly 300 will be driven to revolve around the first rotating axis along the annular track 130. The annular track 130 can provide continuous and rigid support for each needle winding assembly 300, so that it maintains a stable posture during the revolution and avoids displacement or vibration due to centrifugal force or gravity. It can be seen that the first rotating mechanism 100 can stably and reliably drive multiple needle winding assemblies 300 to revolve synchronously under the support of the annular track 130, effectively improving the positional accuracy and running stability of the needle winding assembly 300 during high-speed movement.

[0065] Furthermore, in this embodiment, multiple annular tracks 130 are spaced apart along the axial direction of the rotating rod 120, and each needle winding assembly 300 is slidably connected to multiple annular tracks 130 via multiple connecting blocks 140. Each connecting block 140 can be slidably connected to the corresponding annular track 130 via a slider structure. By setting multiple annular tracks 130, the needle winding assembly 300 obtains multi-point support during revolution, which can more effectively suppress tilting or swaying, further improving motion stability and positioning accuracy.

[0066] Furthermore, in this embodiment, each needle winding assembly 300 also includes a slider 340, and a guide rod 150 is provided for each needle winding assembly 300. The guide rod 150 extends along the axial direction of the rotating rod 120 and is fixedly connected to a plurality of connecting blocks 140. The slider 340 is slidably sleeved on the guide rod 150.

[0067] Specifically, the sliding member 340 is generally fixedly connected to the end support member 320 and does not rotate with the needle coil body 310. When the first rotation mechanism 100 drives the needle coil assembly 300 to revolve around the first rotation axis, the power is first transmitted to the end support member 320, and then drives the connecting block 140 to slide along the annular track 130 through the sliding member 340 and the guide rod 150. Through the cooperation of the sliding member 340 and the guide rod 150, a stable sliding cooperation between the needle coil assembly 300 and the annular track 130 is achieved, while retaining the axial freedom of movement of the needle coil assembly 300. When the telescopic mechanism 700 drives the needle coil assembly 300 to retract or reset axially, the sliding member 340 can slide relative to the guide rod 150 axially, without causing motion interference due to the cooperation relationship with the annular track 130, thereby ensuring the smooth execution of the axial telescopic action during the feeding operation.

[0068] Furthermore, the guide rod 150 connects multiple connecting blocks 140 simultaneously, effectively improving the consistency and stability of each connecting block 140 as it slides along the annular track 130. When moving on the annular track 130, the multiple connecting blocks 140 share the weight and centrifugal force of the needle winding assembly 300. The guide rod 150, as a rigid connector, ensures that each connecting block 140 remains synchronized in the circumferential direction, preventing skewing or jamming caused by uneven force on individual connecting blocks 140 or differences in guide rail clearance. This improves the smoothness and positioning accuracy of the revolution. Each needle winding assembly 300 may have only one guide rod 150, or at least two may be arranged in parallel.

[0069] When the needle coil assembly 300 retracts axially, the cooperation between the guide rod 150 and the sliding member 340 also serves as a limiting and guiding function. The axial extension direction of the guide rod 150 itself is the axial movement direction of the needle coil assembly 300. During the extension and retraction process, the sliding member 340, which is sleeved on it, can only slide linearly along the axial direction due to the constraint of the guide rod 150, and cannot produce radial offset or tilt. This ensures that the free end of the needle coil body 310 can accurately disengage from or insert into the support structure along the axis during forward and backward movement, avoiding jamming or scratch damage caused by deflection.

[0070] For more details, please refer to the following document. Figure 7 In this embodiment, the mating part 330 of the needle coiling assembly 300 is disposed on the sliding part 340. The sliding part 340, as a key component in the needle coiling assembly 300 that participates in both revolution and axial movement, integrates the mating part 330 onto it, achieving a high degree of structural and functional integration. Therefore, there is no need to set additional mounting points in other parts of the needle coiling assembly 300, which helps to simplify the component structure.

[0071] Moreover, this configuration significantly shortens the force transmission path of the telescopic mechanism 700. When the engaging member 710 and the mating member 330 are engaged, since the mating member 330 is directly mounted on the sliding member 340, the additional adapter for force transmission is eliminated. The telescopic mechanism 700 can directly drive the needle winding assembly 300 to move axially through the sliding member 340. The entire transmission chain is more direct, so the telescopic mechanism 700 can drive the needle winding assembly 300 to complete the retraction or reset operation more efficiently.

[0072] Furthermore, in this embodiment, the rotating rod 120 can engage or disengage with each needle coil assembly 300, and can drive the engaged needle coil assembly 300 to slide along the annular track 130.

[0073] In other words, the first rotating mechanism 100 can simultaneously drive only a portion, not all, of the needle winding assemblies 300 to revolve around the first rotating axis. Specifically, only the needle winding assemblies 300 engaged with the drive end of the first rotating mechanism 100 can revolve with the first rotating mechanism 100, while the needle winding assemblies 300 separated from the drive end of the first rotating mechanism 100 cannot revolve with the first rotating mechanism 100.

[0074] In this way, the rotating mechanism can not only drive all the needle winding assemblies 300 to revolve around the first rotation axis, but also drive any one needle winding assembly 300 to move circumferentially relative to the other needle winding assemblies 300 along the first rotation axis. It is evident that, unlike existing technologies, the relative position of each needle winding assembly 300 along the first rotation axis can be adjusted by the rotating mechanism. Therefore, the relative positions between multiple needle winding assemblies 300 are not constant, but can be adjusted according to the working conditions.

[0075] Since the time required for each process at each station varies, to avoid unnecessary waiting, the needle winding assembly 300 at the corresponding station can initiate station switching immediately after the shorter process is completed, without waiting for the longer process to finish. At this time, because some longer stations are still occupied, the winding device 10 in this application also has a waiting position for temporary buffering and scheduling of the needle winding assembly 300, ensuring smooth operation of the needle winding assembly 300. The waiting position is generally located between the unloading station and the winding station.

[0076] It should be noted that the "waiting position" referred to in this application is not limited to a fixed coordinate point, but can also be understood as a spatial area with a certain range. At this waiting position, the needle winding assembly 300 can be completely stationary or move slowly at a lower speed as needed to adapt to different process cycles. Similarly, the winding station, adhesive application station, unloading station, and other related stations or positions involved in this application are all subject to the same definition. It can be a precise single location point or an area that allows for some movement, and can be flexibly set according to the actual working conditions.

[0077] For example, the blanking process is usually the most time-consuming process in battery cell manufacturing. Therefore, after winding, the pin winding assembly 300 at the winding station moves out of the winding station and eventually enters the adhesive application station. The pin winding assembly 300 in the waiting position moves into the winding station, while the pin winding assembly 300 at the blanking station continues its blanking operation. After adhesive application is completed, the pin winding assembly 300 at the blanking station also completes its blanking. At this point, the pin winding assemblies 300 at the adhesive application station and the blanking station can be moved to the blanking station and the waiting position, respectively. By repeating this cycle, continuous battery cell manufacturing can be achieved. As can be seen, while waiting for blanking to be completed, the remaining pin winding assemblies 300 can switch stations and perform corresponding operations, making full use of and reducing the waiting time between processes, thus significantly improving production efficiency.

[0078] Furthermore, in this embodiment, the rotating mechanism further includes a second rotating mechanism 200, the drive end of which can selectively engage with one of the needle winding assembly 300. The drive end of the second rotating mechanism 200 can only engage with one of the needle winding assemblies 300 at a time, thus the second rotating mechanism 200 can only drive one needle winding assembly 300 to move circumferentially along the first rotating axis at a time. Moreover, to avoid interference, each needle winding assembly 300 can only engage with the drive end of at most one of the first rotating mechanism 100 and the second rotating mechanism 200 at any given time.

[0079] As can be seen, the second rotating mechanism 200 can independently adjust the circumferential position of a single needle winding assembly 300, enabling the single needle winding assembly 300 to perform actions such as station switching or phase compensation within the station without affecting the normal operation of other needle winding assemblies 300. The design of two separate rotating mechanisms significantly improves the flexibility of station switching and the timing matching capability.

[0080] Optionally, a collar 610 is provided on the support plate 600. Multiple collars 610 are generally provided and spaced apart along the axial direction of the rotating rod 120. The collar 610 is rotatably fitted onto the rotating rod 120, meaning the collar 610 and the rotating rod 120 are connected by a clearance fit or through a bearing, allowing the collar 610 to rotate freely relative to the rotating rod 120 while maintaining radial positioning. The collar 610 can position the support plate 600 and the needle coil assembly 300 mounted on the support plate 600. When the needle coil assembly 300 moves around the rotating rod 120 under the drive of the second rotating mechanism 200, the collar 610, engaged along the outer circumferential surface of the rotating rod 120, effectively constrains the movement trajectory of the needle coil assembly 300, suppressing swaying or shaking during rotation and significantly improving operational stability.

[0081] Of course, from a functional perspective, setting only one rotation mechanism, such as the first rotation mechanism 100, can also accommodate the revolution of any needle winding assembly 300 and the circumferential position adjustment of a single needle winding assembly 300. Specifically, when any needle winding assembly 300 needs to revolve, the corresponding needle winding assembly 300 remains engaged with the drive end of the rotation mechanism, thereby achieving synchronous rotation; while when it is necessary to adjust the circumferential position of a single needle winding assembly 300, only that needle winding assembly 300 is engaged with the drive end of the rotation mechanism, and the other needle winding assemblies 300 are disengaged from the drive end, thereby cutting off power transmission and keeping them stationary or allowing relative movement.

[0082] Please refer to the following: Figure 2 and Figure 4 In this embodiment, a first clutch mechanism 400 is provided between each needle winding assembly 300 and the rotating rod 120. Each needle winding assembly 300 is connected to a first holding member 410. The first clutch mechanism 400 includes a first driving member 420 assembled on the rotating rod 120 and a first sliding plate 430 that is pulsatorically connected to the first driving member 420. A first slot 431 adapted to the first holding member 410 is provided on the first sliding plate 430.

[0083] The first holding member 410 can be in the form of a cam, slider, etc., and the opening of the first slot 431 faces the corresponding first holding member 410. With the support plate 600 provided, the first holding member 410 can be mounted on the support plate 600 for easy installation. The first driving member 420 can use a cylinder as a power source, and the first sliding plate 430 is slidably mounted on the rotating rod 120 through a guide rail and slider cooperation, thus enabling it to reciprocate relative to the first holding member 410 under the drive of the first driving member 420.

[0084] Furthermore, the first driving member 420 can drive the first sliding plate 430 to slide along the rotating rod 120 and force the first holding member 410 to engage or disengage from the first slot 431. When the first holding member 410 engages with the first slot 431, the needle winding assembly 300 engages with the rotating rod 120, that is, establishes a connection with the driving end of the first rotating mechanism 100; when the first holding member 410 disengages from the first slot 431, the needle winding assembly 300 disengages from the rotating rod 120, that is, disconnects from the driving end of the first rotating mechanism 100. Through this clutch structure, it is possible to flexibly control whether each needle winding assembly 300 participates in the revolution, thereby meeting different winding process requirements, and also facilitating independent adjustment or replacement of individual needle winding assemblies 300.

[0085] In addition, please refer to again Figure 1 and Figure 3 In this embodiment, the second rotating mechanism 200 includes a second driving component 210 and a swing plate 220. The swing plate 220 is rotatably sleeved on the rotating rod 120 and is connected to the second driving component 210 in a transmission manner. The swing plate 220 can be selectively engaged with the needle winding component 300.

[0086] A gap may be left between the swing plate 220 and the rotating rod 120, forming a loose fit so that the swing plate 220 does not rotate with the rotating rod 120. Alternatively, the swing plate 220 can be rotatably mounted to the rotating rod 120 via bearings or other components. Specifically, the second drive assembly 210 can be a servo motor and a reducer, connected to the swing plate 220 via gears, a synchronous belt, or a linkage mechanism. Driven by the second drive assembly 210, the swing plate 220 reciprocates around the axis of the rotating rod 120, i.e., the first rotation axis. The second drive assembly 210 can also be mounted on the base of the first rotating mechanism 100 to maintain a stable position.

[0087] Since the rotational motion of the rotating rod 120 is not transmitted to the oscillating plate 220, and their movements are independent, the second rotating mechanism 200 can independently drive the winding needle assembly 300 to move around the rotating rod 120 without relying on the rotating rod 120. Moreover, since the oscillating plate 220 and the rotating rod 120 are coaxially nested, not only is axial space saved, but motion interference between multiple drive mechanisms is also avoided, improving the flexibility and compactness of the winding device 10.

[0088] When the second rotating mechanism 200 needs to adjust the position of a certain needle winding assembly 300, the oscillating plate 220 can first rotate to the angle position corresponding to the needle winding assembly 300 and engage with it. Subsequently, the second driving assembly 210 drives the oscillating plate 220 to rotate around the first rotation axis, thereby driving the needle winding assembly 300 to move along the annular guide rail 130. When it is necessary to switch to another needle winding assembly 300, the oscillating plate 220 first separates from the current needle winding assembly 300, then rotates to the target position and completes engagement.

[0089] Furthermore, in this embodiment, a second clutch mechanism 500 is provided on the swing plate 220, and each coiling needle assembly 300 is connected to a second holding member 510. The second clutch mechanism 500 includes a second driving member 520 assembled on the swing plate 220 and a second sliding plate 530 that is pulsatorically connected to the second driving member 520. A second slot 531 adapted to the second holding member 510 is provided on the second sliding plate 530.

[0090] The second clutch mechanism 500 is structurally similar to the first clutch mechanism 400. Specifically, the second holding member 510 can adopt a cam, slider, or other structural form, and the opening of the second slot 531 generally faces the corresponding second holding member 510. With the support plate 600 provided, the second holding member 510 can also be mounted on the support plate 600 for ease of installation. The second driving member 520 can use a cylinder as its power source, and the second sliding plate 530 is slidably mounted on the swing plate 220 via a guide rail and slider, thus enabling it to reciprocate relative to the second holding member 510 under the drive of the second driving member 520.

[0091] The second driving member 520 can drive the second sliding plate 530 to slide along the swing plate 220, and force the second holding member 510 to engage or disengage from the second slot 531. When the second holding member 510 engages with the second slot 531, the needle winding assembly 300 engages with the swing plate 220, that is, it establishes a connection with the driving end of the second rotating mechanism 200; when the second holding member 510 disengages from the second slot 531, the needle winding assembly 300 separates from the swing plate 220, that is, it disconnects from the driving end of the second rotating mechanism 200. Through this clutch structure, the swing plate 220 can reliably engage or disengage with the target needle winding assembly 300, meeting the process requirements of multi-station or alternating winding.

[0092] In the aforementioned winding device 10 and cell processing equipment, the telescopic mechanism 700 is located at the unloading station, and the drive end of the telescopic mechanism 700 can engage or disengage with any of the winding needle assemblies 300 that enter the unloading station. When the winding needle assembly 300 rotates to the unloading station, it first engages with the drive end of the telescopic mechanism 700, and then the telescopic mechanism 700 drives it to retract axially until the end of the winding needle assembly 300 is suspended to clear the unloading path. After unloading is completed, the winding needle assembly 300 resets and disengages from the drive end of the telescopic mechanism 700, allowing the cycle to continue. Since it is not necessary to configure a telescopic structure for each winding needle assembly 300 individually, the number of parts can be significantly reduced. Therefore, the aforementioned winding device 10 and cell processing equipment can simplify the structure while facilitating unloading.

[0093] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A winding device, characterized in that, It includes a rotating mechanism, a needle winding assembly, and a telescopic mechanism; the needle winding assembly is mounted on the rotating mechanism and can revolve around a first rotating axis under the drive of the rotating mechanism to circulate between the winding station, the adhesive application station, and the unloading station; the telescopic mechanism is located at the unloading station.

2. The winding device according to claim 1, characterized in that, The drive end of the telescopic mechanism can engage or disengage with any of the needle coiling assemblies that enter the unloading station.

3. The winding device according to claim 2, characterized in that, The telescopic mechanism can drive the needle coil assembly it engages to move along its own axial direction.

4. The winding device according to claim 1, characterized in that, The drive end of the telescopic mechanism is provided with a connecting member, and each of the needle coiling assemblies is provided with a mating member, and the mating member can cooperate with the connecting member.

5. The winding device according to claim 4, characterized in that, As the needle winding assembly enters the unloading station, it can drive the mating part and the connecting part to engage, so that the drive end of the telescopic mechanism engages with the needle winding assembly.

6. The winding device according to claim 5, characterized in that, During the process of the needle coiling assembly moving out of the unloading station, it can drive the mating part and the connecting part to separate, so that the driving end of the telescopic mechanism can be separated from the needle coiling assembly.

7. The winding device according to claim 6, characterized in that, The end of the connector has a notch, and the mating part can be inserted into the notch.

8. The winding apparatus according to claim 7, characterized in that, The mating component is configured as a cam.

9. The winding device according to claim 4, characterized in that, The telescopic mechanism also includes a mounting plate and a telescopic drive assembly, wherein the telescopic drive assembly is disposed on the mounting plate and is connected to the connecting member in a transmission manner.

10. The winding apparatus according to claim 9, characterized in that, The telescopic drive assembly is disposed on the side of the mounting plate facing away from the needle coil assembly. The mounting plate has a strip groove extending along the axial direction of the needle coil assembly. The connecting member is disposed in the strip groove, with one end connected to the telescopic drive assembly and the other end extending to the side of the mounting plate facing the needle coil assembly.

11. The winding apparatus according to any one of claims 1 to 10, characterized in that, The rotating mechanism includes a first rotating mechanism, which includes a first driving component, a rotating rod, and an annular track. The first driving component is pulsatorically connected to the rotating rod. The annular track is arranged around the circumference of the rotating rod, and both the annular track and the rotating rod are coaxial with the first rotation axis. Each of the needle coiling components can be slidably mounted on the annular track and can slide along the annular track under the drive of the rotating rod.

12. The winding apparatus according to claim 11, characterized in that, Multiple annular tracks are spaced apart along the axial direction of the rotating rod, and each of the needle coiling assemblies is slidably connected to multiple annular tracks via multiple connecting blocks.

13. The winding apparatus according to claim 12, characterized in that, Each of the needle winding assemblies further includes a slider, and a guide rod is provided for each of the needle winding assemblies. The guide rod extends along the axial direction of the rotating rod and is fixedly connected to the plurality of connecting blocks. The slider is slidably sleeved on the guide rod.

14. The winding apparatus according to claim 13, characterized in that, Each of the said needle coiling assemblies is provided with a mating part that can engage or disengage with the drive end of the telescopic mechanism, the mating part being disposed on the sliding member.

15. The winding apparatus according to claim 11, characterized in that, The rotating rod can engage or disengage with each of the needle winding assemblies and can drive the engaged needle winding assembly to slide along the annular track; the rotating mechanism also includes a second rotating mechanism, the drive end of which can selectively engage with one of the needle winding assemblies.

16. The winding apparatus according to claim 15, characterized in that, A first clutch mechanism is provided between each of the needle winding assemblies and the rotating rod. Each of the needle winding assemblies is connected to a first retaining member. The first clutch mechanism includes a first driving member assembled on the rotating rod and a first sliding plate that is pulsatorically connected to the first driving member. A first slot adapted to the first retaining member is provided on the first sliding plate.

17. The winding apparatus according to claim 16, characterized in that, The first driving member can drive the first sliding plate to slide along the rotating rod and force the first holding member to engage or disengage from the first slot, so that the rotating rod engages or disengages from the corresponding needle coiling assembly.

18. The winding apparatus according to claim 15, characterized in that, The second rotating mechanism includes a second driving component and a swing plate. The swing plate is rotatably sleeved on the rotating rod and is connected to the second driving component in a transmission manner. The swing plate can selectively engage with the needle winding component.

19. The winding apparatus according to claim 18, characterized in that, The swing plate is provided with a second clutch mechanism, and each of the needle winding assemblies is connected to a second holding member. The second clutch mechanism includes a second driving member assembled on the swing plate and a second sliding plate that is pulsatorically connected to the second driving member. The second sliding plate is provided with a second slot that is adapted to the second holding member.

20. The winding apparatus according to claim 19, characterized in that, The second driving member can drive the second sliding plate to slide along the swing plate and force the second holding member to engage or disengage from the second slot, so that the swing plate engages or disengages from the corresponding winding needle assembly.

21. The winding apparatus according to claim 1, characterized in that, It also includes a support plate corresponding to each of the needle coiling assemblies, the needle coiling assemblies being slidably mounted on the corresponding support plate and being connected to the rotating mechanism via the support plate.

22. A battery cell processing equipment, characterized in that, Includes the winding device as described in any one of claims 1 to 21 above.

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