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 and at least two needle assembly.If the time of blanking process is longer, the needle assembly of winding station is removed from winding station after winding is completed, and finally enters rubberizing station, the needle assembly in standby position is moved into winding station, and the needle assembly of blanking station is continued to execute blanking operation in blanking station.After rubberizing is completed, the needle assembly in blanking station also completes blanking, at this time, the needle assembly in rubberizing station and blanking station can be moved to blanking station and standby position respectively.According to this cycle, the continuous preparation of battery cell can be realized.It can be seen that in the process of waiting for blanking to be completed, the remaining needle assembly can carry out station switching and execute corresponding operation, and the waiting time between each process is fully utilized and compressed.Therefore, the above-mentioned winding device and battery cell processing equipment can speed up production rhythm, thereby improving production efficiency.

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 then 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 step by step. In actual production, the time required for different processes varies. Therefore, after a shorter process is completed, it is necessary to wait at the current station for other longer processes to complete before switching stations. This results in a high proportion of waiting time during production, which restricts the production cycle and ultimately makes it difficult to improve the efficiency of battery cell production. Summary of the Invention

[0003] Therefore, it is necessary to provide a winding device and battery cell processing equipment that can improve the efficiency of battery cell production in order to address the above problems.

[0004] A winding device includes a rotating mechanism and at least two winding needle assemblies; the rotating mechanism has a first rotation axis, and the at least two winding needle assemblies are mounted on the rotating mechanism and are capable of revolving around the first rotation axis under the drive of the rotating mechanism; the rotating mechanism is also capable of driving any one of the winding needle assemblies to move circumferentially relative to the other winding needle assemblies along the first rotation axis.

[0005] In one embodiment, three needle winding assemblies are provided, and each needle winding assembly can circulate between the winding station, the adhesive application station and the unloading station under the drive of the rotating mechanism.

[0006] In one embodiment, the rotating mechanism includes a first rotating mechanism and a second rotating mechanism, each of the needle winding assemblies can be selectively connected to the first rotating mechanism and the second rotating mechanism, and the first rotating mechanism can drive the needle winding assembly connected thereto to revolve around the first rotating axis, and the second rotating mechanism can drive the needle winding assembly connected thereto to revolve around the first rotating axis.

[0007] In one embodiment, at least two of the needle coiling assemblies are mounted on the first rotating mechanism, and the second rotating mechanism is capable of driving any one of the needle coiling assemblies to move circumferentially relative to the other needle coiling assemblies along the first rotating axis.

[0008] In one embodiment, the drive end of the first rotating mechanism can engage or disengage with each of the needle coiling assemblies, and the drive end of the second rotating mechanism can selectively engage with one of the needle coiling assemblies.

[0009] In one embodiment, the first rotating mechanism 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 winding components can be slidably mounted on the annular track and can engage or disengage from the rotating rod. Any one or more needle winding components engaged with the rotating rod can slide along the annular track under the drive of the rotating rod.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] In one embodiment, each of the needle coiling assemblies is connected to a collar, which is rotatably fitted onto the rotating rod.

[0017] In one embodiment, a carrier plate is also included, each of the needle coiling assemblies is mounted on the corresponding carrier plate, and the needle coiling assembly is connected to the first rotating mechanism and the second rotating mechanism through the carrier plate.

[0018] In one embodiment, the needle winding assembly includes a needle winding body and an end support member. The two ends of the needle winding body are rotatably connected to the support plate and the end support member, respectively, and the end support member is fixedly assembled to the support plate.

[0019] A battery cell processing apparatus includes a winding device as described in any of the preferred embodiments above.

[0020] In the aforementioned winding device and cell processing equipment, if the unloading process is time-consuming, the needle winding assembly at the winding station moves out of the winding station after winding and eventually enters the adhesive application station. The needle winding assembly in the waiting position moves into the winding station, while the needle winding assembly at the unloading station continues its unloading operation. Once adhesive application is complete, the needle winding assembly at the unloading station also completes its unloading. At this point, the needle winding assemblies at the adhesive application station and the unloading station can be moved to the unloading station and the waiting position, respectively. This cycle allows for continuous cell production. As can be seen, while waiting for unloading to complete, the remaining needle winding assemblies can switch stations and perform corresponding operations, fully utilizing and compressing the waiting time between processes. Therefore, the aforementioned winding device and cell processing equipment can accelerate the production cycle, thereby improving production efficiency. Attached Figure Description

[0021] 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.

[0022] 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 4This is a simplified schematic diagram of the winding device in multiple operating states in one embodiment; Figure 5 for Figure 2 An enlarged schematic diagram of local area A in the shown local structure; Figure 6 This is a simplified schematic diagram of the winding device in multiple operating states in another embodiment.

[0023] Figure label: Winding device-10; First rotating mechanism-100; First driving assembly-110; Rotating rod-120; Circular track-130; Second rotating mechanism-200; Needle winding assembly-300; Needle winding body-310; End support-320; First clutch mechanism-400; First holding member-410; First driving member-420; First sliding 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. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] Please see Figure 1 The present invention provides a winding device 10 and a battery cell processing equipment. The battery cell processing equipment includes the winding device 10.

[0031] 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.

[0032] Please refer to the following: Figure 2 and Figure 3 In one embodiment of the present invention, the winding device 10 includes a rotating mechanism and a winding needle assembly 300.

[0033] At least two needle winding assemblies 300 are provided, and at least two needle winding assemblies 300 are mounted on a rotating mechanism and can revolve around a first rotation axis under the drive of the rotating mechanism. Driven by the rotating mechanism, each needle winding assembly 300 can sequentially switch between a winding station, an adhesive application station, and a material unloading station to perform winding, adhesive application, and material unloading operations respectively.

[0034] 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 (not shown), 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 diaphragm strip are first fixed by the needle winding assembly 300, and then the needle winding drive mechanism drives the needle winding assembly 300 to rotate around its own axis, so that the electrode strip and the diaphragm strip can be wound around the outer periphery of the needle winding assembly 300.

[0035] Specifically, in this embodiment, three needle winding assemblies 300 are provided, which are circumferentially spaced 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.

[0036] In addition to driving at least two needle winding assemblies 300 to revolve around the first rotation axis, the rotating mechanism can also drive any one needle winding assembly 300 to move circumferentially relative to the other needle winding assemblies 300 along the first rotation axis. Therefore, unlike existing technologies, the relative position of each needle winding assembly 300 along the first rotation axis can be adjusted by the rotating mechanism. Thus, the relative positions between multiple needle winding assemblies 300 are not constant but can be adjusted according to the working conditions.

[0037] Since the time required for each process at each workstation varies, to avoid unnecessary waiting, the needle winding assembly 300 at the corresponding workstation can start workstation switching immediately after the shorter process is completed, without waiting for the longer process to finish. At this time, since some longer workstations are still occupied, the winding device 10 in this application also has a waiting position for temporarily buffering and scheduling the needle winding assembly 300, ensuring the smooth operation of the needle winding assembly 300.

[0038] Depending on the process, the time required for each step varies, resulting in different layouts for the workstations and waiting areas.

[0039] For example, such as Figure 4As shown, in one embodiment, the winding process is the most time-consuming process. In this case, the winding station, adhesive application station, and unloading station are evenly spaced along the circumference of the first rotation axis, while the waiting position is located between the unloading station and the winding station. That is, adjacent stations are spaced 120 degrees apart, while the waiting position is spaced less than 120 degrees from both the unloading station and the winding station.

[0040] After a needle winding assembly 300 completes adhesive application and unloading, it can be moved from the unloading station to the winding station to a waiting position, while the needle winding assembly 300 already in the winding station does not need to be moved. Once winding is complete, the rotating mechanism moves the needle winding assembly 300 from the waiting position into the winding station, and then drives the needle winding assemblies 300 already in the winding station into subsequent stations, such as the adhesive application station. Since the displacement from the waiting position to the winding station is less than the displacement from the unloading station directly to the winding station, the idle time of the winding station during each station switch can be significantly reduced. Furthermore, the time required for the needle winding assembly 300 to move from the unloading station to the waiting position is included in the waiting time for winding completion, so no additional time is consumed. Therefore, this effectively reduces station switching time, fully utilizes and compresses the waiting time between processes, thereby helping to improve cell production efficiency.

[0041] For example, such as Figure 6 As shown, in another embodiment, the unloading process is the most time-consuming process. In this case, the winding station, adhesive application station, unloading station, and waiting position are all evenly distributed circumferentially along the first rotation axis, with the waiting position also located between the unloading station and the winding station. In this case, the adhesive application station is spaced 90 degrees apart from both the winding station and the unloading station, and the waiting position is also spaced 90 degrees apart from both the winding station and the unloading station.

[0042] After winding, the needle winding assembly 300 at the winding station moves out of the winding station and eventually enters the adhesive application station. The needle winding assembly 300 in the waiting position moves into the winding station, while the needle winding assembly 300 at the unloading station continues its unloading operation. Once adhesive application is complete, the needle winding assembly 300 at the unloading station also completes its unloading. At this point, the needle winding assemblies 300 at the adhesive application station and the unloading station can be moved to the unloading station and the waiting position, respectively. This cycle allows for continuous cell production. As can be seen, while waiting for unloading to complete, the remaining needle winding assemblies 300 can switch stations and perform corresponding operations, fully utilizing and reducing the waiting time between processes, thus improving production efficiency.

[0043] More specifically, when the needle winding assembly 300 at the waiting position enters the winding station, the needle winding assembly 300 displaced from the winding station generally has not yet entered the adhesive application station. This can be achieved in three ways: First, the needle winding assembly 300 displaced from the winding station moves to the middle position between the winding and adhesive application stations and waits until it has completely entered the winding station before continuing its movement towards the adhesive application station; second, the needle winding assembly 300 displaced from the winding station moves towards the adhesive application station at a slower speed, delaying its arrival time, thus achieving the same purpose; third, while the needle winding assembly 300 at the winding station has not yet completed winding, the needle winding assembly 300 at the waiting position starts moving towards the winding station in advance, gradually approaching the currently winding needle winding assembly 300. Once the needle winding assembly 300 at the winding station completes winding and begins to displace, the two needle winding assemblies 300 then move synchronously along the circumferential direction of the first rotation axis. Since the needle winding assembly 300 in the waiting position has been started in advance, the circumferential interval between the two will be less than the normal station spacing (i.e., less than 90°). As a result, after the needle winding assembly 300 in the original waiting position enters the winding station, the needle winding assembly 300 that has moved out from the winding station will not immediately reach the adhesive application station, but will still be on its way.

[0044] In this way, when the newly entered needle winding assembly 300 is ready to start a new round of winding, the diaphragm strip pulled by the needle winding assembly 300 that just moved out of the winding station is only pulled out to a shorter length. This facilitates the newly entered needle winding assembly 300 in smoothly capturing and clamping the end of the diaphragm strip, thereby reducing the difficulty of starting the winding. In particular, when the third method mentioned above is used, there is no need to adjust the speed of the needle winding assembly 300 throughout the process. Each needle winding assembly 300 can maintain the same constant speed around the first rotation axis after starting, which simplifies the motion control logic, reduces the difficulty of adjustment, and helps to improve the stability and reliability of equipment operation.

[0045] 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.

[0046] It should also be specifically noted that the term "winding completion" in this application specifically refers to the following: at the winding station, the winding needle assembly 300 completes the winding action of a preset number of turns according to process requirements, thereby forming an intermediate semi-finished product of the battery cell. This state only represents the end of the winding stage; what is obtained is not a complete battery cell, but a semi-finished battery cell that still needs further processing (tail-winding of the diaphragm, adhesive application, shaping, etc.). Furthermore, the aforementioned "preset number of turns" can be equal to or less than the final number of turns required for the finished battery cell. When the aforementioned "preset number of turns" is less than the required number, the remaining turns can be completed by continuing to rotate the winding needle assembly 300 after it moves out of the winding station. For example, if the finished battery cell requires 10 turns, 8 turns can be wound first at the winding station, and the remaining 2 turns can be completed after the winding needle assembly 300 moves out of the winding station, followed by further processing such as tail-winding of the diaphragm, adhesive application, and shaping.

[0047] Please refer to it again. Figure 2 and Figure 3 Specifically, in this embodiment, the rotating mechanism includes a first rotating mechanism 100 and a second rotating mechanism 200. Each needle coil assembly 300 can be selectively connected to the first rotating mechanism 100 and the second rotating mechanism 200, and the first rotating mechanism 100 can drive the connected needle coil assembly 300 to revolve around a first rotating axis, and the second rotating mechanism 200 can also drive the connected needle coil assembly 300 to revolve around the first rotating axis.

[0048] Furthermore, at least two needle winding assemblies 300 are mounted on the first rotating mechanism 100, and the second rotating mechanism 200 is capable of driving any one needle winding assembly to move circumferentially relative to the other needle winding assemblies 300 along the first rotating axis.

[0049] In other words, the first rotating mechanism 100 can drive any needle winding assembly 300 to revolve around the first rotating axis, ensuring the synchronization of the operating rhythm of different needle winding assemblies 300; while the second rotating mechanism 200 can independently adjust the circumferential position of a single needle winding assembly 300, enabling the individual needle winding assembly 300 to achieve differentiated movement speeds or phase compensation within the workstation without affecting the normal operation of other needle winding assemblies 300. The design employing two separate rotating mechanisms significantly improves the flexibility of workstation switching and the timing matching capability.

[0050] Of course, from a functional perspective, a single rotating mechanism 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 rotating mechanism, thereby achieving synchronous rotation; while when a single needle winding assembly 300 needs to be adjusted individually in its circumferential position, only that needle winding assembly 300 is engaged with the drive end of the rotating mechanism, and the remaining needle winding assemblies 300 are disengaged from the drive end, thereby cutting off power transmission and keeping them stationary or allowing relative movement.

[0051] Specifically in this embodiment, the driving end of the first rotating mechanism 100 can engage or disengage with each needle winding assembly 300, and the driving end of the second rotating mechanism 200 can selectively engage with one of the needle winding assemblies 300.

[0052] 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 it, while those detached from the drive end cannot. The drive end of the second rotating mechanism 200 can only engage with one needle winding assembly 300 at a time, thus driving only one needle winding assembly 300 to move circumferentially along the first rotating axis at a time. Furthermore, to avoid interference, each needle winding assembly 300 can only engage with the drive end of either the first rotating mechanism 100 or the second rotating mechanism 200 at a time.

[0053] Continue to refer to Figure 4 Taking an application scenario where the winding process is the most time-consuming process, and the winding station, adhesive application station, and unloading station are evenly distributed along the circumference of the first rotation axis as an example.

[0054] When the needle winding assembly 300 moves from the unloading station to the waiting position, it can be driven by either the first rotating mechanism 100 or the second rotating mechanism 200. When the needle winding assembly 300 moves from the waiting position to the winding station, it can be driven by either the first rotating mechanism 100 or the second rotating mechanism 200. When the needle winding assembly 300 moves from the winding station to a subsequent station, such as the adhesive application station, it is generally driven by both the first rotating mechanism 100 and the second rotating mechanism 200.

[0055] Preferably, after the needle winding assembly 300 at the unloading station completes unloading and during the station switching process, the first rotating mechanism 100 can first drive the needle winding assembly 300 at the unloading station to move towards the winding station to the waiting position. The needle winding assembly 300 at the winding station that has not yet completed winding will separate from the drive end of the first rotating mechanism 100, so it will not revolve with the first rotating mechanism 100, and will continue to perform winding operations at the winding station. After winding is completed, the needle winding assembly 300 at the winding station engages with the drive end of the first rotating mechanism 100, and the first rotating mechanism 100 starts again. While driving the needle winding assembly 300 at the waiting position to move into the winding station, it also drives the needle winding assembly 300 in the original winding station to move to the subsequent station.

[0056] However, since the displacement required for the needle winding assembly 300 to move from the waiting position to the winding station is small, the rotation distance of the first rotating mechanism 100 is insufficient to move the needle winding assembly 300 from the original winding station to the next station. Instead, it can only move the needle winding assembly 300 to the intermediate position between the winding station and the next station. At this point, the needle winding assembly 300 in the intermediate position separates from the drive end of the first rotating mechanism 100 again and engages with the drive end of the second rotating mechanism 200. Finally, the second rotating mechanism 200 drives it to continue moving until it reaches the next station, namely the adhesive application station. During this process, the needle winding assembly 300 that has already entered the winding station can start the winding operation normally. It can be seen that by cooperating with the first rotating mechanism 100 and the second rotating mechanism 200, only one first rotating mechanism 100 and one second rotating mechanism 200 are needed to achieve the purpose of station switching, thereby simplifying the structure and transmission relationship of the winding device 10.

[0057] The following is combined Figure 4 Taking the application scenario where the winding process is the most time-consuming process as an example, the working process of the winding device 10 is described as follows: For ease of description, the three needle winding assemblies 300 are labeled as No. 1, No. 2, and No. 3, respectively. In their initial state, needle winding assemblies 300 300 300 are located at the winding station, the adhesive application station, and the unloading station, respectively, and are performing winding, adhesive application, and unloading operations. See the attached document for details. Figure 4As shown in (a); after the battery cells on the No. 2 and No. 3 winding needle assemblies 300 have completed the adhesive application and unloading operations, the No. 2 and No. 3 winding needle assemblies 300 engage with the drive end of the first rotating mechanism 100, while the No. 1 winding needle assembly 300 disengages from the drive end of the first rotating mechanism 100. The first rotating mechanism 100 drives the No. 2 and No. 3 winding needle assemblies 300 to move synchronously toward the winding station until the No. 2 and No. 3 winding needle assemblies 300 move to their respective waiting positions. At this time, the No. 1 winding needle assembly 300 can engage with the second driving mechanism 200 or be held at the winding station by a positioning mechanism to continue the winding operation. See the details below. Figure 4 As shown in (b); after the No. 1 needle winding assembly 300 completes winding, it first engages with the drive end of the first rotating mechanism 100. The first rotating mechanism 100 restarts, simultaneously moving the No. 2 and No. 3 needle winding assemblies 300 from their respective waiting positions to the winding station and unloading station, respectively, while moving the No. 1 needle winding assembly 300 to the middle position. Next, the No. 1 needle winding assembly 300 separates from the drive end of the first rotating mechanism 100 and engages with the drive end of the second rotating mechanism 200. Finally, the second rotating mechanism 200 drives it to continue moving to the adhesive application station, as detailed in [reference needed]. Figure 4 As shown in (c). At this time, needle winding assemblies 300 1, 2, and 3 are located at the adhesive application station, the unloading station, and the winding station, respectively. By cycling through these stations, each needle winding assembly 300 can sequentially pass through the winding station, the adhesive application station, and the unloading station.

[0058] And continue to refer to Figure 6 Taking the material feeding process as an example, where the winding station, adhesive application station, material feeding station, and waiting position are all evenly distributed along the circumference of the first rotation axis.

[0059] When switching workstations, each needle winding assembly 300 can be driven by either the first rotating mechanism 100 or the second rotating mechanism 200. Preferably, after the needle winding assembly 300 at the winding station completes winding, it can be moved to the intermediate position between the winding station and the adhesive application station by the second rotating mechanism 200. The needle winding assemblies 300 waiting at the waiting position are moved to the winding station under the drive of the first rotating mechanism 100. The needle winding assemblies 300 at the unloading station that have not yet completed unloading are separated from the driving ends of the first rotating mechanism 100 and the second rotating mechanism 200, and thus continue unloading operations at the unloading station. Once the diaphragm tape is cut and the new... After the needle assembly 300 enters the winding station and starts winding, the needle assembly 300 located in the middle position continues to move to the adhesive application station under the drive of the second rotation mechanism 200. After the adhesive application is completed, the needle assemblies 300 in the adhesive application station and the unloading station are engaged with the drive end of the first rotation mechanism 100. The first rotation mechanism 100 is started again, which moves the needle assembly 300 located in the unloading station to the waiting position, and also moves the needle assembly 300 in the original adhesive application station to the unloading station.

[0060] The following is combined with Figure 6 Taking the application scenario where the feeding process is the most time-consuming process as an example, the working process of the winding device 10 is described as follows: For ease of description, the three needle winding assemblies 300 are also labeled as No. 1, No. 2, and No. 3, respectively. In their initial state, needle winding assemblies 300 300 300 are located at the winding station, the unloading station, and the waiting position, respectively. See the attached document for details. Figure 6 As shown in (a); after the No. 1 needle winding assembly 300 completes the winding operation, the No. 3 and No. 1 needle winding assemblies 300 engage with the drive ends of the first rotating mechanism 100 and the second rotating mechanism 200, respectively, and move to the winding station and the middle position under the drive of the first rotating mechanism 100 and the second rotating mechanism 200, respectively. The No. 2 needle winding assembly 300 separates from the drive ends of the first rotating mechanism 100 and the second rotating mechanism 200, and can be held at the unloading station by a positioning mechanism to continue the unloading operation. See the details below. Figure 6 As shown in (b); next, the diaphragm strip connected to the No. 1 needle winding assembly 300 is cut, and the No. 3 needle winding assembly 300 entering the winding station starts winding. The second rotating mechanism 200 continues to drive the No. 1 needle winding assembly 300 to move to the adhesive application station to perform the adhesive application operation, as detailed in [reference]. Figure 6 As shown in (c); after the first needle winding assembly 300 completes the adhesive application, both the first and second needle winding assemblies 300 engage with the drive end of the first rotating mechanism 100, and synchronously move to the unloading station and waiting position under the drive of the first rotating mechanism 100, as detailed in the image. Figure 6As shown in (d). At this time, needle winding assemblies 300 1, 2, and 3 are located at the unloading station, the waiting position, and the winding station, respectively. By repeating this cycle, each needle winding assembly 300 can sequentially pass through the winding station, the adhesive application station, and the unloading station.

[0061] Please refer to it again. Figure 1 In this embodiment, the first rotating mechanism 100 includes a first driving component 110, a rotating rod 120, and an annular track 130. The first driving component 110 is connected to the rotating rod 120 in a transmission manner. The annular track 130 is arranged around the circumference of the rotating rod 120, and both the annular track 130 and the rotating rod 120 are coaxial with the first rotation axis. Each needle winding assembly 300 can be slidably mounted on the annular track 130 and can be engaged or disengaged from the rotating rod 120. Any one or more needle winding assemblies 300 engaged with the rotating rod 120 can slide along the annular track 130 under the drive of the rotating rod 120.

[0062] 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 slide with the annular track 130 via an arc-shaped slider. The inner wall of the arc-shaped slider and the outer circumferential surface of the annular track 130 form a precise rolling or sliding contact, thereby providing stable support while ensuring motion accuracy. The first rotating mechanism 100 generally also has a base (not shown in the figure). The first drive assembly 110 and the annular track 130 are fixedly mounted on the base, while the rotating rod 120 is rotatably mounted on the base.

[0063] 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, which is engaged with the rotating rod 120, 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.

[0064] Specifically, 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 the multiple annular tracks 130. 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, and further improve the stability of movement and positioning accuracy.

[0065] Please refer to it again. Figure 2 In this embodiment, the winding device 10 further includes a support plate 600. Each needle winding assembly 300 is mounted on a corresponding support plate 600, and the needle winding assembly 300 is connected to the first rotating mechanism 100 and the second rotating mechanism 200 through 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, facilitating the connection of the needle winding assembly 300 with the first rotating mechanism 100 and the second rotating mechanism 200, or its engagement or disengagement with their driving ends.

[0066] Furthermore, in this embodiment, the needle winding assembly 300 also includes an end support 320. The two ends of the needle winding body 310 are rotatably connected to the support plate 600 and the end support 320, respectively, and the end support 320 is fixedly assembled to the support plate 600. The end support 320 may be a cylindrical structure, providing a larger support area, thereby enhancing the load-bearing stability of the needle winding body 310. Simultaneously, the end support 320 is also used to achieve a sliding connection with the annular track 130.

[0067] When assembling the needle coil assembly 300 with the first rotating mechanism 100, the end support 320 slides in engagement with the annular track 130, while the bearing plate 600 selectively engages or disengages from the rotating rod 120. This separate connection method ensures smooth sliding of the needle coil assembly 300 on the annular track 130 and facilitates quick installation, disassembly, or replacement of the needle coil assembly 300, significantly improving the convenience of assembly and maintenance.

[0068] The engagement or disengagement between the needle coiling assembly 300 and the rotating rod 120 can be achieved in various ways. For example, a keyway or engaging structure can be provided axially on the rotating rod 120, and a corresponding retractable claw or electromagnetic attractor can be provided on each needle coiling assembly 300, with engagement or disengagement controlled by an external control signal.

[0069] Please refer to the following: Figure 2 and Figure 5Specifically, 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] A gap may be left between the swing plate 220 and the rotating rod 120, so that the two are loosely fitted together and the swing plate 220 does not rotate with the rotating rod 120. Of course, the swing plate 220 can also be rotatably mounted on the rotating rod 120 by means of bearings or other components.

[0074] Specifically, the second drive assembly 210 may employ a servo motor and a reducer, and be 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 may also be mounted on the base of the first rotating mechanism 100 to maintain a stable position.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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 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.

[0079] 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.

[0080] Specifically, in this embodiment, each needle coiling assembly 300 is connected to a collar 610. The collar 610 is rotatably fitted onto the rotating rod 120, that is, the collar 610 and the rotating rod 120 are connected by a clearance fit or through a bearing, so that the collar 610 can rotate freely relative to the rotating rod 120 while maintaining radial positioning. The collar 610 can position and guide the needle coiling assembly 300. When the needle coiling assembly 300 moves around the rotating rod 120 under the drive of the second rotating mechanism 200, the collar 610, along the outer circumferential surface of the rotating rod 120, can effectively constrain the movement trajectory of the needle coiling assembly 300, suppress its swaying or shaking during rotation, and significantly improve the stability of operation.

[0081] In the case where a support plate 600 is provided, the collar 610 is also fixedly connected to the support plate 600, for example, by bolts, welding, or integral molding. In this way, the needle coil assembly 300, the support plate 600, and the collar 610 form a single integral component, facilitating assembly and maintenance. Furthermore, multiple collars 610 are generally provided and arranged at intervals along the axial direction of the rotating rod 120. Multiple collars 610 can provide multi-point support for the needle coil assembly 300 at different axial positions, further distributing the load and ensuring the stability and reliability of the needle coil assembly 300 during long-stroke rotation.

[0082] 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.

[0083] 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 and at least two needle winding assemblies; the rotating mechanism has a first rotation axis, and at least two needle winding assemblies are mounted on the rotating mechanism and are capable of revolving around the first rotation axis under the drive of the rotating mechanism; the rotating mechanism is also capable of driving any one of the needle winding assemblies to move circumferentially relative to the other needle winding assemblies along the first rotation axis.

2. The winding device according to claim 1, characterized in that, The needle winding assembly is provided in three parts, and each needle winding assembly can circulate between the winding station, the adhesive application station and the unloading station under the drive of the rotating mechanism.

3. The winding device according to claim 1, characterized in that, The rotating mechanism includes a first rotating mechanism and a second rotating mechanism. Each of the needle winding assemblies can be selectively connected to the first rotating mechanism and the second rotating mechanism. The first rotating mechanism can drive the needle winding assembly connected to it to revolve around the first rotating axis, and the second rotating mechanism can drive the needle winding assembly connected to it to revolve around the first rotating axis.

4. The winding device according to claim 3, characterized in that, At least two of the said needle coiling assemblies are mounted on the first rotating mechanism, and the second rotating mechanism is capable of driving any one of the said needle coiling assemblies to move circumferentially relative to the other said needle coiling assemblies along the first rotating axis.

5. The winding device according to claim 4, characterized in that, The drive end of the first rotating mechanism can engage or disengage with each of the needle coiling assemblies, and the drive end of the second rotating mechanism can selectively engage with one of the needle coiling assemblies.

6. The winding device according to claim 4, characterized in that, The first rotating mechanism 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 winding components can be slidably mounted on the annular track and can engage or disengage from the rotating rod. Any one or more needle winding components engaged with the rotating rod can slide along the annular track under the drive of the rotating rod.

7. The winding device according to claim 6, characterized in that, Multiple annular tracks are spaced apart along the axial direction of the rotating rod, and each needle coiling assembly is slidably connected to the multiple annular tracks.

8. The winding device according to claim 6, 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.

9. The winding apparatus according to claim 8, 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.

10. The winding apparatus according to claim 6, 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.

11. The winding apparatus according to claim 10, 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.

12. The winding apparatus according to claim 11, 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.

13. The winding apparatus according to claim 6, characterized in that, Each of the said needle coiling assemblies is connected to a collar, which is rotatably fitted onto the rotating rod.

14. The winding apparatus according to claim 4, characterized in that, It also includes a carrier plate, each of the needle coiling assemblies is mounted on the corresponding carrier plate, and the needle coiling assembly is connected to the first rotating mechanism and the second rotating mechanism through the carrier plate.

15. The winding apparatus according to claim 14, characterized in that, The needle winding assembly includes a needle winding body and an end support. The two ends of the needle winding body are rotatably connected to the support plate and the end support, respectively, and the end support is fixedly assembled to the support plate.

16. A battery cell processing equipment, characterized in that, Includes the winding device as described in any one of claims 1 to 15 above.

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