Battery cell glue winding device based on transmission mechanism and production line

Abstract

The invention discloses a battery cell glue winding device based on transmission mechanisms and a production line. The device comprises a driving mechanism, an executing mechanism, a first transmission mechanism and a second transmission mechanism, the driving mechanism drives the first transmission mechanism and the second transmission mechanism; the first transmission mechanism drives the executing mechanism to move, so that the executing mechanism moves along a preset movement track; and the second transmission mechanism drives the executing mechanism to act, so that the executing mechanism executes corresponding actions when moving along the movement track and reaching a preset position, and glue winding is carried out on the battery cell. Track control is carried out through the first transmission mechanism and the second transmission mechanism, and when the driving mechanism drives the first transmission mechanism and the second transmission mechanism, the executing mechanism is guided by the tracks of the first transmission mechanism and the second transmission mechanism at the same time and can execute preset actions. The movement process of the actuating mechanism can be controlled without additional motor or cylinder control and corresponding electrical signal control, so that the glue winding speed of the battery cell can be increased, and the production efficiency of the battery cell can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery processing equipment, and in particular to a battery cell winding device and production line based on a transmission mechanism. Background Art

[0002] Glue wrapping (taping) plays a crucial role in lithium-ion battery assembly. It not only stabilizes the battery cell's shape but is also a key step in improving battery safety. Applying glue to the electrode and tabs effectively prevents burrs from puncturing the separator and short-circuiting during improper use, thereby ensuring battery safety and stability. During the battery cell production process, the tail of the cell undergoes a "C"-shaped wrapping process, requiring glue to be applied to three sides of the tail.

[0003] In the related art, the glue winding device at the tail of the battery cell is generally controlled by a cylinder or a motor to complete the glue winding action. The speed of completing the glue winding does not meet the process requirements, and the efficiency of the battery cell glue winding is not high, resulting in low production efficiency of the battery cell. Summary of the Invention

[0004] The present application proposes a battery cell winding device based on a transmission mechanism, which is used to effectively solve the technical problem in the related art that the battery cell winding efficiency is low, resulting in low battery cell production efficiency.

[0005] The present application also proposes a production line including the above-mentioned battery core winding device based on the transmission mechanism.

[0006] The first embodiment of the present application provides a battery core winding device based on a transmission mechanism, comprising: a driving mechanism, an actuator, a first transmission mechanism, and a second transmission mechanism;

[0007] The driving mechanism is used to drive the first transmission mechanism and the second transmission mechanism;

[0008] The first transmission mechanism is used to drive the actuator to move so that the actuator can move along a preset motion trajectory;

[0009] The second transmission mechanism is used to drive the actuator to move, so that the actuator can perform corresponding actions when it moves along the motion trajectory and reaches at least one preset position, thereby winding the battery core.

[0010] Furthermore, the first transmission mechanism includes a first cam assembly, the first cam assembly has a first contour line, and the first contour line is used to determine the motion trajectory;

[0011] The second transmission mechanism includes a second cam assembly having a second contour line, so that when the actuator reaches each preset position, it is driven by the second cam assembly to perform corresponding actions respectively;

[0012] The driving mechanism is used to simultaneously drive the first cam assembly and the second cam assembly to rotate.

[0013] Furthermore, the actuator includes multiple actuator ends, and the second cam assembly includes multiple cam bodies. The number of the cam bodies corresponds to the number of the actuator ends. Each of the cam bodies has its own second contour line and is used to drive each of the actuator ends to move.

[0014] Furthermore, the actuator includes a cutter assembly, and the second cam assembly includes a first cam component, and the first cam component is used to drive the cutter assembly to extend at a first preset timing and cut the rubber.

[0015] Furthermore, the actuator includes a rubber wrapping assembly and a belt clamping assembly, the cutter assembly is movably arranged on the rubber wrapping assembly, and the second cam assembly includes a second cam component and a third cam component;

[0016] The second cam component is used to drive the adhesive tape wrapping assembly to move, so that the adhesive tape wrapping assembly can stick the adhesive tape on the battery cell under the drive of at least one of the second cam component or the first cam component;

[0017] The third cam component is used to drive the clamping assembly to move so that the clamping assembly can clamp the tape;

[0018] Among them, after the glue winding assembly sticks the tape on the battery cell, at least one of the second cam component or the first cam component is also used to drive the glue winding assembly to move in a direction relatively close to the battery cell to compress the tape, and the cutter assembly extends out and cuts the glue after the glue winding assembly compresses the tape and the clamping assembly clamps the tape.

[0019] Furthermore, the battery core glue winding device based on the transmission mechanism also includes a pressing mechanism, which is used to press the glue after the actuator has applied glue to the bottom surface of the battery core.

[0020] Furthermore, the pressing mechanism includes a third cam assembly and a pressing platform assembly, the third cam assembly has a third contour line, and the third contour line is used to make the pressing platform assembly move toward the bottom surface of the battery cell and perform glue pressing at a second preset timing.

[0021] Furthermore, the first cam assembly is used to drive the actuator to move in a vertical direction;

[0022] The plurality of cam bodies are used to respectively drive the execution ends to move in the horizontal direction;

[0023] The third cam assembly is used to drive the pressing platform assembly to move in the vertical direction;

[0024] The driving mechanism is used to simultaneously drive the first cam assembly, each of the second cam assemblies and the third cam assembly to rotate, thereby sequentially performing glue application on the bottom surface, side surface and top surface of the tail of the battery cell.

[0025] Furthermore, the battery core winding device based on the transmission mechanism further includes a first follower cam, a connecting member, and a second follower cam arranged in a group, wherein the first follower cam is arranged at a first end of the connecting member, and the second follower cam is arranged at a second end of the connecting member;

[0026] The first follower cam in one group is used to abut against the first cam assembly, and the second follower cam is used to abut against the actuator, so that the first cam assembly is used to drive the actuator to move;

[0027] And / or the first follower cam in one group is used to abut against the cam body, and the second follower cam is used to abut against the execution end, so that the cam body is used to drive the execution end to move;

[0028] And / or the first follower cam in one group is used to abut against the third cam assembly, and the second follower cam is used to abut against the pressing platform assembly, so that the third cam assembly is used to drive the pressing platform assembly to move.

[0029] It can be seen from the above technical solutions that the embodiments of the present application have at least the following beneficial effects: trajectory control is performed through the first transmission mechanism and the second transmission mechanism, so that when the driving mechanism drives the first transmission mechanism and the second transmission mechanism, the actuator is simultaneously guided by the trajectory of the first transmission mechanism and the second transmission mechanism and can perform preset actions. The movement process of the actuator can be controlled without additional motor or cylinder control and corresponding electrical signal control, thereby increasing the battery cell winding speed and improving the battery cell production efficiency.

[0030] The second embodiment of the present application provides a production line, including: a battery cell winding device based on a transmission mechanism as in the first embodiment of the present application.

[0031] It is not difficult to understand that the production line in the second embodiment of the present application has the technical effect of the battery cell winding device based on the transmission mechanism in the first embodiment, so it will not be repeated.

[0032] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0034] Figure 1 A front view of a battery core winding device provided in one embodiment of the present application;

[0035] Figure 2 A schematic diagram of a partial structure of a battery core winding device provided in one embodiment of the present application;

[0036] Figure 3 A schematic diagram of a rubber wrap assembly provided in one embodiment of the present application;

[0037] Figure 4 A schematic diagram of a cutter assembly provided in accordance with an embodiment of the present application.

[0038] Reference numerals:

[0039] 100. Driving mechanism;

[0040] 200, actuator; 210, cutter assembly; 220, rubber wrap assembly; 221, extension port; 230, entrainment assembly;

[0041] 300, first transmission mechanism; 310, first cam assembly;

[0042] 400, second transmission mechanism; 410, second cam assembly; 411, first cam component; 412, second cam component; 413, third cam component;

[0043] 500, pressing mechanism; 510, third cam assembly; 520, pressing platform assembly;

[0044] 610, first follower cam; 620, connecting member; 630, second follower cam. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0046] See also Figures 1 to 4As shown, an embodiment of the first aspect of the present application discloses a battery core winding device based on a transmission mechanism, including a driving mechanism 100, an actuator 200, a first transmission mechanism 300 and a second transmission mechanism 400.

[0047] The driving mechanism 100 is used to drive the first transmission mechanism 300 and the second transmission mechanism 400; the first transmission mechanism 300 is used to drive the actuator 200 to move so that the actuator 200 can move along a preset motion trajectory; the second transmission mechanism 400 is used to drive the actuator 200 to move so that the actuator 200 can perform corresponding actions when it moves along the motion trajectory and reaches at least one preset position, thereby winding the battery cell.

[0048] In an embodiment of the present application, trajectory control is performed by the first transmission mechanism 300 and the second transmission mechanism 400, so that when the driving mechanism 100 drives the first transmission mechanism 300 and the second transmission mechanism 400, the actuator 200 is simultaneously guided by the trajectory of the first transmission mechanism 300 and the second transmission mechanism 400 and can perform preset actions. The movement process of the actuator 200 can be controlled without additional motor or cylinder control and corresponding electrical signal control, thereby increasing the battery cell winding speed and improving the battery cell production efficiency.

[0049] It is understandable that the battery cell winding device based on the transmission mechanism of the embodiment of the present application provides driving force through the driving mechanism 100, and the driving mechanism 100 drives the actuator 200 to move through the transmission of the first transmission mechanism 300 and the second transmission mechanism 400. Based on the operational requirements of battery cell winding, in order to complete the winding process of the battery cell, it is usually necessary to perform "C"-shaped winding on the tail of the battery cell, that is, it is necessary to perform glue application on the three surfaces of the tail of the battery cell. Therefore, the activities of the actuator 200 to wrap the battery cell include two actions: moving and gluing, thereby realizing the winding of the battery cell.

[0050] In some embodiments, the cell winding device of the embodiment of the present application further includes a tape roller, which is used to supply tape to the actuator 200. The actuator 200 sticks or winds the tape on the cell to achieve the cell winding process. Furthermore, the cell winding device of the embodiment of the present application further includes components such as a transmission roller and a tape clamp for controlling and guiding the transport of the tape. The transmission roller guides the tape output from the tape roller, and the tape clamp limits the tape output from the tape roller, so that the accuracy and efficiency of supplying the tape to the actuator 200 are higher. In conjunction with the design of the first transmission mechanism 300 and the second transmission mechanism 400, the cell winding speed can be further increased, thereby improving the cell production efficiency.

[0051] It should be understood that the battery cell winding device of the embodiment of the present application controls the moving trajectory of the actuator 200 through the first transmission mechanism 300, and guides the movement trajectory of the actuator 200 by designing the transmission mode of the first transmission mechanism 300, thereby determining the movement trajectory of the actuator 200, and ensuring that within one transmission cycle, the first transmission mechanism 300 can drive the actuator 200 to complete the movement required for winding a battery cell. Similarly, the battery cell winding device of the embodiment of the present application controls the movement mode and timing of the actuator 200 through the second transmission mechanism 400, and determines the controlled trajectory by designing the transmission mode of the second transmission mechanism 400. The trajectory can be used to guide the movement of the actuator 200, thereby determining that the actuator 200 can perform the corresponding action when it moves to a specific position, and ensuring that within one transmission cycle, the second transmission mechanism 400 can drive the actuator 200 to complete the action required for winding a battery cell. The first transmission mechanism 300 and the second transmission mechanism 400 cooperate to ultimately control the movement process of the actuator 200, thereby realizing the action of gluing the battery cell.

[0052] In this regard, in some embodiments, the first transmission mechanism 300 and the second transmission mechanism 400 can be configured to include but not limited to determining the controlled trajectory through the contour line of the cam, determining the controlled trajectory through the design of the connecting rod mechanism, cooperating with the sliding member through the trajectory groove and determining the controlled trajectory by designing the trajectory groove, realizing small displacement by utilizing the elastic deformation of the material through the flexible mechanism, and the trajectory is determined by the structural geometry. The above-mentioned transmission mechanism can be adaptively selected for use on the basis of being able to realize trajectory control, guide the trajectory of the action of the actuator 200, and control the movement process of the actuator 200.

[0053] It should be understood that there are multiple ways for the driving mechanism 100 to drive the first transmission mechanism 300 and the second transmission mechanism 400, which can be adaptively selected according to adaptive production needs.

[0054] In some embodiments, the drive mechanism 100 drives the first transmission mechanism 300 and the second transmission mechanism 400 in a manner that can be set to drive simultaneously, so that the first transmission mechanism 300 and the second transmission mechanism 400 operate synchronously and the transmission trajectories are designed separately, so that the actuator 200 can wrap the glue around the battery cell. In other embodiments, the drive mechanism 100 drives the first transmission mechanism 300 and the second transmission mechanism 400 in a manner that can be set to drive independently, and selectively drive one of the transmission mechanisms through a switching device such as a clutch, a gear shift mechanism, an electromagnetic reversing valve, etc., so that the two do not interfere with each other and can be started and stopped separately, so that the actuator 200 can perform the action of wrapping the glue around the battery cell respectively. In other embodiments, the drive mechanism 100 drives the first transmission mechanism 300 and the second transmission mechanism 400 in a manner that can be set to differential drive, and transmits power of different speeds or directions to the two transmission mechanisms through a differential mechanism such as a differential gear or a planetary gear set to achieve a speed difference or direction difference, and through the corresponding design of the transmission trajectory, the actuator 200 can perform the action of wrapping the glue around the battery cell. In other embodiments, the manner in which the driving mechanism 100 drives the first transmission mechanism 300 and the second transmission mechanism 400 can also be set to a cascade drive, first driving the first transmission mechanism, and then driving the second transmission mechanism through the output shaft or intermediate piece of the first transmission mechanism to form a chain transmission chain, and through the corresponding designed transmission trajectory, the actuator 200 performs the action of winding the battery cell with glue.

[0055] The following will be combined Figures 1 to 4 The battery core winding device based on the transmission mechanism disclosed in the embodiment of the present application is specifically explained and illustrated.

[0056] It should be understood that in order to increase the speed of battery core winding and make production efficiency higher, the structural design of the transmission mechanism is the key to achieve the above functions. Figure 1 and Figure 2 In some embodiments of the present application, the first transmission mechanism 300 includes a first cam assembly 310, and the first cam assembly 310 has a first contour line, and the first contour line is used to determine the motion trajectory; the second transmission mechanism 400 includes a second cam assembly 410, and the second cam assembly 410 has a second contour line, so that when the actuator 200 reaches each preset position, it is driven by the second cam assembly 410 to perform corresponding actions respectively; the driving mechanism 100 is used to simultaneously drive the first cam assembly 310 and the second cam assembly 410 to rotate.

[0057] It can be understood that the design based on the first contour line and the second contour line can directly control the movement process of the actuator 200 within a rotation cycle. By designing multiple edge protrusions and the starting point of rotation, the first cam assembly 310 and the second cam assembly 410 can coordinate and cooperate in the trajectory control of the actuator 200, so that when the first cam assembly 310 and the second cam assembly 410 are driven to rotate at the same time by the driving mechanism 100, the trajectory of the action of the actuator 200 is guided. On the basis of controlling the movement process, the cell winding speed can be controlled to achieve the effect of improving the cell production efficiency.

[0058] It should be noted that the actuator 200 generally includes several steps in performing the glue wrapping action on the battery cell. In this regard, in some embodiments of the present application, the actuator 200 includes multiple actuator ends, and the second cam assembly 410 includes multiple cam bodies. The number of cam bodies corresponds to the number of actuator ends, and each cam body has its own second contour line and is used to drive each actuator end to move.

[0059] It is understood that the actuator 200 of the embodiment of the present application includes multiple actuators, each of which plays a role in the required execution of each step, so that the winding action of the battery cell can be completed through each actuator within a transmission cycle. Among them, each cam body is used to drive the movement of each actuator, and the second contour line of each cam body is specifically designed to ensure flexible transmission. On this basis, the trajectory of each cam body is controlled, so that the movement process of each actuator is controlled, the accuracy of the action is guaranteed, and a basis for realizing the acceleration of battery cell winding is provided.

[0060] It is understandable that in the actuator 200 of the embodiment of the present application, the number and type of the actuator ends can be selected according to different battery core winding requirements. In some embodiments, referring to Figures 2 to 4 The actuator 200 includes multiple actuator ends for completing the glue winding action, and each actuator end is a cutter assembly 210, a glue winding assembly 220 and a belt entraining assembly 230. Since the number of cam bodies corresponds to the number of actuator ends, for the convenience of description, the multiple cam bodies are named as the first cam component 411, the second cam component 412, and the third cam component 413 in sequence. The description of this embodiment will be further expanded later.

[0061] In some embodiments of the present application, reference is made to Figure 2 and Figure 4 The actuator 200 includes a cutter assembly 210, and the second cam assembly 410 includes a first cam component 411. The first cam component 411 is used to drive the cutter assembly 210 to extend and cut the rubber at a first preset time.

[0062] It can be understood that the cutter assembly 210 is used to extend and cut the glue after the three surfaces of the battery cell are glued, allowing the glued battery cell to flow to the next station and prepare for the next battery cell to be glued, thereby improving production efficiency. The first predetermined timing can be understood as the timing of extending the cutter assembly 210 based on the contour design of the first cam component 411, such as by designing multiple edge protrusions and combining them with the starting point of rotation.

[0063] It should be understood that in order to improve the cutting accuracy of the cutter assembly 210 and further improve the consistency of production, in some embodiments of the present application, reference is made to Figures 2 to 4 The actuator 200 includes a tape wrapping assembly 220 and a tape clamping assembly 230. The cutter assembly 210 is movably disposed on the tape wrapping assembly 220. The second cam assembly 410 includes a second cam component 412 and a third cam component 413. The second cam component 412 is used to drive the tape wrapping assembly 220 to move, so that the tape wrapping assembly 220 can stick the tape on the battery cell under the drive of at least one of the second cam component 412 or the first cam component 310. The third cam component 413 is used to drive the tape clamping assembly 230 to move, so that the tape clamping assembly 230 can clamp the tape.

[0064] Among them, after the glue winding component 220 sticks the tape on the battery cell, at least one of the second cam component 412 or the first cam component 310 is also used to drive the glue winding component 220 to move in a direction relatively close to the battery cell to compress the tape. The cutter component 210 extends out and cuts the glue after the glue winding component 220 compresses the tape and the clamping component 230 clamps the tape.

[0065] It can be understood that the present application cooperates with the winding component 220 and the clamping component 230. When the battery cell winding is completed and the glue needs to be cut, the tape is fixed at the upstream and downstream of the cutter component 210 respectively, so that the tape is tightened to facilitate the cutter component 210 to cut the glue, thereby improving the cutting accuracy of the cutter component 210. After the clamping component 230 releases the tape, the tape is normally supplied to the actuator 200, thereby improving the continuity of production.

[0066] It should be understood that the first cam assembly 310 is used to drive the overall movement of the actuator 200, and the second cam assembly 410 is used to drive the actuator 200 to perform an action. Therefore, at least one of the first cam assembly 310 or the second cam assembly 310 is required to achieve motion control of the adhesive wrapping assembly 220. Specifically, in some embodiments, the second cam component 412 and the first cam assembly 310 simultaneously drive the adhesive wrapping assembly 220 to compress the tape, so that the adhesive wrapping assembly 220, driven by the second cam component 412 and the first cam assembly 310, presses downward and rightward against the upper surface of the battery cell tail, achieving a better compression effect.

[0067] In some embodiments, referring to Figure 3 The tape winding assembly 220 includes a tape winding platform that guides the tape onto the battery cell and presses against the tape on the cell surface after delivery. In this embodiment, the tape winding platform sequentially delivers the tape to the bottom, side, and top surfaces of the battery cell. During this delivery process, the tape winding platform moves under the drive of the first cam assembly 310. During this movement, the tape winding platform presses the tape on the cell surface, thereby improving the quality of the cell tape winding.

[0068] Furthermore, the glue winding platform is formed with an extension port 221, and the cutter assembly 210 can be movably arranged on the glue winding assembly 220 and can be extended from the extension port 221 to cut the glue, and after cutting the glue, the cutter assembly 210 and the glue winding assembly 220 move relative to each other, so that the cutter assembly 210 retreats from the extension port 221.

[0069] In some embodiments, the clamping assembly 230 may be configured to include but not limited to an openable clamping plate, a clamping roller, or an adsorption fixing member with an adsorption positioning function, so as to achieve the function of clamping the tape.

[0070] In the battery cell production process, the three sides of the battery cell tail need to be glued. However, in the related art, after gluing the bottom surface of the battery cell tail, the tape is easily peeled off due to gravity, thus affecting the quality of the battery cell winding.

[0071] In this regard, in some embodiments of the present application, reference is made to Figure 1 and Figure 2 The battery core glue winding device based on the transmission mechanism also includes a pressing mechanism 500, which is used to press the glue after the actuator 200 glues the bottom surface of the battery core.

[0072] It can be understood that by using the pressing mechanism 500 to press the tape on the bottom surface of the tail of the battery cell, when the actuator 200 moves and glues other positions of the battery cell, the tape on the bottom surface of the tail of the battery cell can be continuously limited, avoiding the phenomenon of tape falling off as much as possible, thereby improving the quality of the battery cell winding.

[0073] In some embodiments of the present application, reference is made to Figure 1 and Figure 2 The pressing mechanism 500 includes a third cam assembly 510 and a pressing platform assembly 520. The third cam assembly 510 has a third contour line, and the third contour line is used to make the pressing platform assembly 520 move toward the bottom surface of the battery cell and perform glue pressing at the second preset timing.

[0074] It can be understood that the design based on the third contour line can directly control the movement path of the pressure table assembly 520 within a rotation cycle. By designing multiple edge protrusions and the starting point of rotation, the pressure table assembly 520 can press the tape on the bottom surface of the tail of the battery cell at the appropriate time to ensure the quality of the winding on the basis of controlling the movement path.

[0075] In other embodiments, the movement of the pressure platform assembly 520 can also be transmitted through a transmission mechanism including but not limited to a connecting rod mechanism, a linear module, a gear transmission mechanism, etc. On the basis that different transmission methods can also control the pressure platform assembly 520 to perform appropriate movement, the transmission mechanism can be adaptively selected.

[0076] In some embodiments, the pressing mechanism 500 can be independently configured with a driving component to drive the pressing platform assembly 520 to move, or it can be driven by the driving mechanism 100 of the embodiment of the present application, where the driving method may include but is not limited to simultaneous driving, differential driving, cascade driving, etc., which will not be further repeated here.

[0077] In some embodiments of the present application, the first cam assembly 310 is used to drive the actuator 200 to move in the vertical direction; multiple cam bodies are used to drive each actuator end to move in the horizontal direction respectively; the third cam assembly 510 is used to drive the pressure platform assembly 520 to move in the vertical direction; the driving mechanism 100 is used to simultaneously drive the first cam assembly 310, each second cam assembly 410 and the third cam assembly 510 to rotate, thereby performing the gluing action on the bottom, side and top surfaces of the tail of the battery cell in turn.

[0078] It is understood that, based on the cam's trajectory control, the movement direction of the actuator 200, each actuator end, and the pressure platform assembly 520 is limited to the horizontal and vertical directions, which can improve the control accuracy of the movement process and simplify the configuration of the connector 620 while ensuring the ability to achieve the winding action. It should be understood that the configuration in which the drive mechanism 100 simultaneously drives the rotation of the first cam assembly 310, each second cam assembly 410, and the third cam assembly 510 can provide a basis for accelerating the winding of the battery cell.

[0079] In a specific embodiment, referring to Figures 1 to 4The first cam assembly 310 drives the actuator 200 to move in the vertical direction to the gluing position, and cooperates with the transmission of the second cam component 412 to complete the gluing of the bottom surface of the battery cell tail from the inside to the outside. Then, the first cam assembly 310 drives the actuator 200 to move in the vertical direction, and cooperates with the transmission of the second cam component 412 to complete the gluing of the side surface of the battery cell tail. The first cam assembly 310 drives the actuator 200 to move in the vertical direction to the gluing position, and cooperates with the transmission of the second cam component 412 to complete the gluing of the top surface of the battery cell tail from the outside to the inside. Then, driven by the first cam assembly 310 and the second cam component 412, the glue winding assembly 220 presses the top surface of the battery cell tail downward and rightward, and cooperates with the transmission of the third cam component 413 to press the tape on the drive roller. At this time, the cutter assembly 210 is extended by the transmission of the first cam component 411 to cut the tape, thereby completing the U-shaped glue winding of the tail. Subsequently, the first cam component 411 is driven to move the adhesive wrapping assembly 220 to the right to cover and press the protruding cutter, thereby resetting and pressing the adhesive tape, and then the battery cell can be output to the next station.

[0080] In some embodiments of the present application, reference is made to Figure 1 and Figure 2 The battery core winding device based on the transmission mechanism further includes a first follower cam 610, a connector 620, and a second follower cam 630 arranged in a group, wherein the first follower cam 610 is arranged at a first end of the connector 620, and the second follower cam 630 is arranged at a second end of the connector 620;

[0081] The first follower cam 610 of one group is used to abut against the first cam assembly 310, and the second follower cam 630 is used to abut against the actuator 200, so that the first cam assembly 310 is used to drive the actuator 200 to move;

[0082] And / or the first follower cam 610 of one group is used to abut against the cam body, and the second follower cam 630 is used to abut against the actuator end, so that the cam body is used to drive the actuator end to move;

[0083] And / or the first follower cam 610 of one group is used to abut against the third cam assembly 510, and the second follower cam 630 is used to abut against the pressing platform assembly 520, so that the third cam assembly 510 is used to drive the pressing platform assembly 520 to move.

[0084] It is understood that the transmission structure comprising the first follower cam 610, the connecting member 620, and the second follower cam 630 disclosed in the embodiment of the present application can ensure the accuracy of the cam transmission, thereby achieving better control over the movement of the actuator 200, the action of the actuator end, and the movement of the pressure platform assembly 520. Therefore, the first cam assembly 310, the second cam assembly 410, and the third cam assembly 510 can all adaptively select to use the transmission mechanism comprising the first follower cam 610, the connecting member 620, and the second follower cam 630 for transmission.

[0085] In some embodiments, to ensure proper transmission, elastic members may be provided on the connector 620 to reliably abut the first follower cam 610 and the second follower cam 630. Furthermore, to define the specific movement of the actuator 200, the actuator end, and the pressure platform assembly 520, guide members such as slide rails and guide rods may be provided to guide the movement of the connector 620 or the actuator 200, the actuator end, and the pressure platform assembly 520, thereby meeting the requirements of battery cell winding.

[0086] In other embodiments, the first cam assembly 310, the second cam assembly 410 or the third cam assembly 510 can be driven by other commonly used mechanical transmission structures such as a connecting rod mechanism, a crank slider mechanism, etc., which will not be further described here.

[0087] The following describes in detail the battery core winding device based on the transmission mechanism according to an embodiment of the present application using a specific embodiment. It should be noted that the following embodiment is only an exemplary description and should not be understood as limiting the embodiments of the present application.

[0088] See also Figures 1 to 4 As shown, the battery cell winding device based on the transmission mechanism of this embodiment mainly performs trajectory control through the coaxial special-shaped cam, thereby controlling the movement path and movement timing of the connecting part 620 abutting against the special-shaped cam, thereby ultimately controlling the movement process of the execution end.

[0089] The cell winding device includes a tape roller, a winding execution end, a winding pressure platform, and a cam assembly. The tape roller is used to supply tape. Optionally, the cell winding device of this embodiment may further include components such as a transmission roller and a tape clamp for controlling the transportation of the tape. Each cam in the cam assembly is irregularly shaped. The first follower cam 610 and the second follower cam 630 are installed at both ends of each connecting member 620. The cam assembly abuts against each first follower cam 610 to achieve horizontal or vertical displacement when rotating. The second follower cam 630 abuts against the winding execution end. Therefore, according to the shape design of each cam in the cam assembly, taking any cam as an example, by designing multiple edge protrusions and rotation starting points within a rotation cycle, the movement direction of the connecting member 620 and the execution end abutting against the cam can be controlled within a rotation cycle. More specifically, the execution end can be divided into multiple movable sub-execution ends, and each sub-execution end has its own motion logic according to the trajectory control design of different cams.

[0090] Specifically, in the battery cell winding device of this embodiment, a cam controls the vertical movement of the winding pressure platform, a cam controls the vertical movement of the entire battery cell winding execution end, and three sub-execution ends are arranged on the battery cell winding execution end, and the three cams respectively control the horizontal movement of the three sub-execution ends.

[0091] It can be understood that the trajectory is controlled by the coaxial special-shaped cam, thereby controlling the connecting piece 620 of the execution end of the glue winding device that abuts the special-shaped cam, and ultimately controlling the movement process of the execution end. In this way, the trajectory guidance of the glue winding action of the execution end can be completely completed by the coaxial cam assembly, without the need for additional motor or cylinder control and corresponding electrical signal control, thereby increasing the glue winding speed of the battery cell and improving the battery cell production efficiency.

[0092] The production line of the second embodiment of the present application may be a production line for preparing battery cells or batteries, and the production line includes: a battery cell winding device based on a transmission mechanism of the first embodiment of the present application.

[0093] It can be understood that the battery cell winding device based on the transmission mechanism of the first aspect of the present application has a good gluing effect, can better fix the shape of the battery cell, and improve the safety performance of the battery, thereby making the battery cells or batteries produced by the production line with this battery cell winding device based on the transmission mechanism better in quality.

[0094] It is not difficult to understand that the production line in the second embodiment of the present application has the technical effect of the battery cell winding device based on the transmission mechanism in the first embodiment, so it will not be repeated.

[0095] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0096] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0097] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0098] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

Claims

1. A battery core winding device based on a transmission mechanism, characterized in that: include: A driving mechanism, an actuator, a first transmission mechanism and a second transmission mechanism; The driving mechanism is used to drive the first transmission mechanism and the second transmission mechanism; The first transmission mechanism is used to drive the actuator to move so that the actuator can move along a preset motion trajectory; The second transmission mechanism is used to drive the actuator to move, so that the actuator can perform corresponding actions when it moves along the motion trajectory and reaches at least one preset position, thereby winding the battery core.

2. The battery core winding device based on the transmission mechanism according to claim 1 is characterized in that: The first transmission mechanism includes a first cam assembly, the first cam assembly has a first contour line, and the first contour line is used to determine the motion trajectory; The second transmission mechanism includes a second cam assembly having a second contour line, so that when the actuator reaches each preset position, it is driven by the second cam assembly to perform corresponding actions respectively; The driving mechanism is used to simultaneously drive the first cam assembly and the second cam assembly to rotate.

3. The battery core winding device based on the transmission mechanism according to claim 2, characterized in that: The actuator includes a plurality of actuator ends, and the second cam assembly includes a plurality of cam bodies. The number of the cam bodies corresponds to the number of the actuator ends. Each of the cam bodies has its own second contour line and is used to drive each of the actuator ends to move.

4. The battery core winding device based on the transmission mechanism according to claim 2, characterized in that: The actuator includes a cutter assembly, and the second cam assembly includes a first cam component. The first cam component is used to drive the cutter assembly to extend at a first preset timing and cut the rubber.

5. The battery core winding device based on the transmission mechanism according to claim 4 is characterized in that: The actuator includes a rubber wrapping assembly and a belt clamping assembly, the cutter assembly is movably arranged on the rubber wrapping assembly, and the second cam assembly includes a second cam component and a third cam component; The second cam component is used to drive the adhesive tape wrapping assembly to move, so that the adhesive tape wrapping assembly can stick the adhesive tape on the battery cell under the drive of at least one of the second cam component or the first cam component; The third cam component is used to drive the clamping assembly to move so that the clamping assembly can clamp the tape; Among them, after the glue winding assembly sticks the tape on the battery cell, at least one of the second cam component or the first cam component is also used to drive the glue winding assembly to move in a direction relatively close to the battery cell to compress the tape, and the cutter assembly extends out and cuts the glue after the glue winding assembly compresses the tape and the clamping assembly clamps the tape.

6. The battery core winding device based on the transmission mechanism according to claim 3, characterized in that: The battery core glue winding device based on the transmission mechanism further includes a pressing mechanism, which is used to press the glue after the actuator has applied glue to the bottom surface of the battery core.

7. The battery core winding device based on the transmission mechanism according to claim 6, characterized in that: The pressing mechanism includes a third cam assembly and a pressing platform assembly. The third cam assembly has a third contour line. The third contour line is used to make the pressing platform assembly move toward the bottom surface of the battery cell and perform glue pressing at a second preset timing.

8. The battery core winding device based on the transmission mechanism according to claim 7, characterized in that: The first cam assembly is used to drive the actuator to move in a vertical direction; The plurality of cam bodies are used to respectively drive the execution ends to move in the horizontal direction; The third cam assembly is used to drive the pressing platform assembly to move in the vertical direction; The driving mechanism is used to simultaneously drive the first cam assembly, each of the second cam assemblies and the third cam assembly to rotate, thereby sequentially performing glue application on the bottom surface, side surface and top surface of the tail of the battery cell.

9. The battery core winding device based on the transmission mechanism according to claim 7, characterized in that: The battery core winding device based on the transmission mechanism further includes a first follower cam, a connecting member and a second follower cam arranged in a group, wherein the first follower cam is arranged at a first end of the connecting member, and the second follower cam is arranged at a second end of the connecting member; The first follower cam in one group is used to abut against the first cam assembly, and the second follower cam is used to abut against the actuator, so that the first cam assembly is used to drive the actuator to move; And / or the first follower cam in one group is used to abut against the cam body, and the second follower cam is used to abut against the execution end, so that the cam body is used to drive the execution end to move; And / or the first follower cam in one group is used to abut against the third cam assembly, and the second follower cam is used to abut against the pressing platform assembly, so that the third cam assembly is used to drive the pressing platform assembly to move.

10. A production line, characterized in that: include: A battery core winding device based on a transmission mechanism as described in any one of claims 1 to 8.

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