Diaphragm tail roll mechanism

Abstract

The utility model discloses a diaphragm tail rolling mechanism, and relates to the technical field of diaphragms. The device specifically comprises a first moving part, a second moving part, a pair of clamping jaws and a driving device, and the first moving part and the second moving part move in the same direction or opposite directions in the direction of the connecting line of the first moving part and the second moving part; each clamping jaw rotates on the opposite sides of the first moving part and the second moving part; the driving device is arranged on one side of the first moving part and one side of the second moving part and comprises a driving shaft and a transmission structure, and the driving shaft is rotationally arranged on one side of the first moving part and one side of the second moving part; the driving shaft is sleeved with the transmission structure, and the transmission structure is in flexible transmission with the corresponding clamping jaw. The synchronous movement of the clamping jaws on the two sides is ensured through the transmission shaft and the transmission structure, the diaphragm winding uniformity and stability are effectively improved, meanwhile, the motor fault risk is reduced, the maintenance process is simplified, and the overall operation efficiency of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm technology, and in particular to a diaphragm tail winding mechanism. Background Technology

[0002] The separator tail winding mechanism is a device used in lithium battery stacking machines to wind the separator onto the surface of the stacked battery cell. Its main function is to tightly wind the separator around the outside of the battery cell after the stacking process is completed, in preparation for the subsequent battery assembly process.

[0003] In the prior art, the diaphragm tail winding mechanism uses a pair of grippers and winding needles mounted on the grippers. The winding needles clamp the two sides of the battery cell, and the grippers clamp the stacked core. Servo motors are installed at corresponding positions of the pair of grippers. The servo motors drive the rotation of the grippers to achieve the winding of the diaphragm, thereby winding the diaphragm at the tail of the stacked core onto the surface of the battery cell.

[0004] However, in the above scheme, installing separate servo motors on the grippers on different sides results in low synchronization performance, which can easily lead to asynchronous rotation of the grippers on both sides, thereby affecting the uniformity and stability of the diaphragm winding. In addition, if a motor on one side fails (such as overload burnout), the machine needs to be stopped for replacement, and the failure will trigger a chain reaction of damage to the motor on the other side.

[0005] Therefore, this utility model aims to solve the synchronization problem of the grippers on both sides, and also avoid the problem of chain damage to the motor. Utility Model Content

[0006] The main purpose of this invention is to provide a diaphragm tail winding mechanism, which aims to optimize the connection structure of the gripper drive end, improve the synchronization of the grippers on both sides, and avoid interlocking damage to the motors corresponding to the grippers on both sides.

[0007] To achieve the above objectives, this utility model proposes a diaphragm tail winding mechanism, comprising:

[0008] The first moving part and the second moving part move towards or in opposite directions along the line connecting them.

[0009] A pair of grippers, each gripper rotating on the opposite side of the first and second moving members;

[0010] A driving device, located on one side of the first moving member and the second moving member, includes:

[0011] The drive shaft is rotatably positioned on one side of the first and second moving parts;

[0012] The transmission structure is sleeved on the drive shaft and flexibly drives the corresponding gripper.

[0013] In the above scheme, the grippers on the first and second moving parts are driven to rotate synchronously by the transmission structure, which in turn drives the stacked core to rotate synchronously, improving the synchronicity of the overall transmission structure, ensuring that the stacked core is stable and uniform during the winding process, and effectively improving the quality and efficiency of diaphragm winding.

[0014] Furthermore, it includes a pressure roller placed between the grippers, the pressure roller being adjustable to move in a direction perpendicular to the line connecting the two grippers, so as to selectively abut against or move away from the stacked core located between the two grippers.

[0015] Furthermore, the flexible transmission includes a drive wheel and a flexible element. The drive wheel is connected to the drive shaft and can be adjusted to move along the axial direction of the drive shaft. The flexible element is located at the drive end of the drive wheel and the gripper.

[0016] Furthermore, the driving device includes a guide wheel connected to the driving shaft, with one side wall of the guide wheel connected to the driving shaft. The driving shaft and the guide wheel rotate coaxially on the outer wall of the driving shaft. The first moving member and the second moving member are provided with guide heads on the side near the guide wheel, and the guide heads are embedded in the annular groove of the guide wheel.

[0017] Furthermore, the first moving component and the second moving component each include a first moving frame and a second moving frame, and the two grippers are respectively installed on the opposite side of the first moving frame and the second moving frame. A connecting plate is installed on the side of the first moving frame and the second moving frame facing the guide wheel, and the guide head is connected to the connecting plate.

[0018] Furthermore, both the first and second movable frames are equipped with bases, and the grippers are rotatably mounted on the bases.

[0019] Furthermore, the first movable frame and the second movable frame have reserved installation space for the flexible component around the corresponding gripper.

[0020] Furthermore, the driving device includes a base plate, the driving shaft is rotatably mounted on the base plate, and a first base frame and a second base frame are respectively installed on the side of the first movable frame and the second movable frame facing the base plate, and both the first base frame and the second base frame are mounted on the base plate.

[0021] Furthermore, a first protective cover and a second protective cover are respectively installed on the first movable frame and the second movable frame.

[0022] Furthermore, a first telescopic component and a second telescopic component are respectively installed on the first base frame and the second base frame, and the output ends of the first telescopic component and the second telescopic component are respectively installed on the first movable frame and the second movable frame.

[0023] The above technical solution has the following advantages:

[0024] This utility model employs a first moving part and a second moving part that move towards each other, and a gripper is provided at one end of the first moving part and the second moving part that move towards each other. The transmission shaft and transmission structure of the drive device ensure that the grippers on both sides move synchronously, which effectively improves the uniformity and stability of diaphragm winding, reduces the risk of motor failure, simplifies the maintenance process, improves the overall operating efficiency of the equipment, and avoids interlocking damage to the motors corresponding to the grippers on both sides. Attached Figure Description

[0025] The present invention will now be described in detail with reference to specific embodiments and accompanying drawings, wherein:

[0026] Figure 1 This is a schematic diagram of the structure of this utility model with a pressure roller;

[0027] Figure 2 This is a schematic diagram of the structure of this utility model;

[0028] Figure 3 This is a partial structural schematic diagram of the present invention.

[0029] In the diagram: 1. Drive unit; 11. Motor; 12. Base plate; 13. Drive shaft; 14. Transmission structure; 141. Guide wheel; 142. Drive wheel; 143. Flexible component; 15. Coupling; 2. First moving component; 21. First base frame; 22. First telescopic component; 23. First moving frame; 24. First protective cover; 3. Second moving component; 31. Second telescopic component; 32. Second base frame; 33. Second moving frame; 34. Base; 35. Second protective cover; 36. Connecting plate; 37. Guide head; 4. Pressure roller; 5. Gripper. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain this utility model and do not constitute a limitation on this utility model.

[0031] like Figure 1As shown, a diaphragm winding mechanism includes a first moving member 2, a second moving member 3, a pair of grippers 5, and a driving device 1. The first moving member 2 and the second moving member 3 move towards or away from each other along the line connecting them. Each gripper 5 rotates on the side of the first moving member 2 and the second moving member 3 facing each other. The driving device 1 is located on one side of the first moving member 2 and the second moving member 3, and includes a drive shaft 13 and a transmission structure 14. The drive shaft 13 is rotatably located on one side of the first moving member 2 and the second moving member 3. The transmission structure 14 is sleeved on the drive shaft 13 and flexibly drives the corresponding gripper 5. The first moving member 2 and the second moving member 3 can move closer to or further away from each other. They can be placed on the ground or on a base plate 12. Grippers 5 are rotatably mounted on both the first moving member 2 and the second moving member 3. When the first moving member 2 and the second moving member 3 move closer to each other, the two grippers 5 can clamp the stacked cells between them and drive the stacked cells to rotate, so that the diaphragm at the end of the stacked cells is wound around the surface of the stacked cells.

[0032] like Figure 1 and Figure 2 As shown, specifically, the drive device 1 is located between the first moving part 2 and the second moving part 3. The drive shaft 13 can be an independent mechanism located outside the first moving part 2 and the second moving part 3, or it can be connected to the first moving part 2 and the second moving part 3. The rotation of the drive shaft 13 is configured to drive the grippers 5 on the first moving part 2 and the second moving part 3 to rotate synchronously through the transmission structure 14, thereby driving the stacked core to rotate synchronously, improving the synchronization of the overall transmission structure 14, ensuring that the stacked core is stable and uniform during the winding process, and effectively improving the quality and efficiency of diaphragm winding.

[0033] The drive unit 1 also includes a motor 11 and a coupling 15. The motor 11 is connected to the drive shaft 13 through the coupling 15 to achieve precise control. The transmission structure 14 is connected to the flexible member 143 through the guide wheel 141 and the drive wheel 142 to ensure that the gripper 5 rotates synchronously, further optimizing the accuracy and stability of the diaphragm winding.

[0034] like Figure 1 and Figure 2As shown, this application includes a pressure roller 4 positioned between grippers 5. The pressure roller 4 is adjustable and movable along a direction perpendicular to the line connecting the two grippers 5 to selectively abut against or move away from the stacked core located between the two grippers 5. The design of the pressure roller 4 further optimizes the clamping force of the grippers 5, preventing slippage or damage to the diaphragm during winding, thereby extending the equipment's service life and reducing maintenance costs. The pressure roller 4 is fixed to an external support, which is also equipped with an adjustment device. The position of the pressure roller 4 can be precisely controlled through the adjustment device to ensure that the pressure roller 4 applies appropriate pressure during the stacked core winding process, preventing loosening or wrinkling of the diaphragm during winding, and further improving the tightness and flatness of the diaphragm winding. The adjustment device of the pressure roller 4 adopts an elastic telescopic cylinder structure, which can automatically adjust the spacing of the pressure roller 4 according to the thickness of the stacked core, ensuring that the pressure roller 4 is always in close contact with the stacked core and optimizing the winding effect.

[0035] like Figure 2 and Figure 3 As shown, the flexible drive includes a drive wheel 142 and a flexible element 143. The drive wheel 142 is connected to the drive shaft 13 and can be adjusted and moved along the axial direction of the drive shaft 13. The flexible element 143 is located at the drive end of the drive wheel 142 and the gripper 5. Power is transmitted through the drive wheel 142 driving the flexible element 143, realizing the rotation and winding of the gripper 5. The movement adjustment of the drive wheel 142 can be adjusted according to the position change of the gripper 5 to ensure accurate power transmission. For example, if the first moving part 2 and the second moving part 3 move to different positions, the drive wheel 142 can be adjusted accordingly to keep the tension of the flexible element 143 consistent, ensuring synchronous rotation of the gripper 5 and improving winding accuracy and stability. The flexible element 143 can be a belt, chain, or rope, and the corresponding drive wheel 142 can be a synchronous pulley, sprocket, or pulley to adapt to the transmission requirements of different flexible elements 143, ensuring efficient and stable power transmission under various working conditions, and guaranteeing the continuity and reliability of the winding process.

[0036] like Figure 2 and Figure 3As shown, the drive device 1 includes a guide wheel 141, which is connected to the drive shaft 13. One side wall of the guide wheel 141 is connected to the drive wheel 142. The drive wheel 142 and the guide wheel 141 rotate coaxially on the outer wall of the drive shaft 13. The first moving member 2 and the second moving member 3 are provided with a guide head 37 on the side near the guide wheel 141. The guide head 37 is embedded in the annular groove of the guide wheel 141. The guide wheel 141 and the drive shaft 13 are fixed to each other, such as by snap-fit ​​or pin connection, to ensure that the guide wheel 141 and the drive wheel 142 rotate synchronously and avoid deviation or detachment. At the same time, the guide wheel 141 can be fixed by bolts, so that the guide wheel 141 and the drive shaft 13 can be selectively fixed or loosened, so that the position of the drive wheel 142 on the drive shaft 13 can be adjusted by the guide wheel 141, ensuring that the drive wheel 142 and the flexible member 143 always maintain the best contact state, further optimizing the power transmission efficiency. The guide head 37 extends into the annular groove on the outer wall of the guide wheel 141, and the rotation of the guide wheel 141 will not interfere with the guide head 37, so that the guide wheel 141 and the drive wheel 142 can follow the synchronous adjustment and movement of the first moving member 2 and the second moving member 3.

[0037] like Figure 1 and Figure 2 As shown, the first moving part 2 and the second moving part 3 respectively include a first moving frame 23 and a second moving frame 33. Two grippers 5 are respectively installed on the opposite side of the first moving frame 23 and the second moving frame 33. A connecting plate 36 is installed on the side of the first moving frame 23 and the second moving frame 33 facing the guide wheel 141. The guide head 37 is connected to the connecting plate 36. The guide head 37 extends into the annular groove of the guide wheel 141 through the connecting plate 36. The connecting plate 36 is fixed to the corresponding moving frame with high-strength bolts to ensure that the guide head 37 is stably embedded in the annular groove, avoiding loosening or falling off, improving the rigidity and stability of the overall structure, and ensuring the accuracy and reliability of the winding process.

[0038] like Figure 1 and Figure 2 As shown, both the first movable frame 23 and the second movable frame 33 are equipped with bases 34, and the grippers 5 are rotatably mounted on the bases 34. The bases 34 are connected to the movable frames via bearings to ensure that the grippers 5 rotate flexibly. The bases 34 are designed with positioning grooves, which cooperate with positioning pins on the corresponding movable frames. The positioning pins are inserted into the positioning grooves to achieve precise positioning of the bases 34, prevent deviation during rotation, and enhance the stability of the grippers 5 rotation.

[0039] like Figure 2 and Figure 3As shown, the first movable frame 23 and the second movable frame 33 have reserved installation space for the flexible component 143 around the corresponding gripper 5, preventing interference during transmission and ensuring even distribution of tension in the flexible component 143 for smooth transmission. A first protective cover 24 and a second protective cover 35 are respectively installed on the first movable frame 23 and the second movable frame 33. The first protective cover 24 and the second protective cover 35 improve dust protection. Both are made of high-strength materials, effectively preventing dust and foreign objects from entering and extending the service life of the equipment. Simultaneously, the open sides facilitate real-time monitoring of the winding status, ensuring operational safety.

[0040] like Figure 1 and Figure 2 As shown, in one embodiment of this application, the drive device 1 includes a base plate 12, and a drive shaft 13 is rotatably mounted on the base plate 12. A first base frame 21 and a second base frame 32 are respectively installed on the side of the first movable frame 23 and the second movable frame 33 facing the base plate 12. The first base frame 21 and the second base frame 32 are both installed on the base plate 12, and the base plate 12 is fixed between the first base frame 21 and the second base frame 32 to form a stable support structure. At the same time, the base plate 12 is reserved with mounting holes to facilitate connection with other equipment and enhance the overall installation flexibility. For example, if a valve island is installed, the valve island is tightly fixed to the base plate 12 through the mounting holes to ensure stable operation of the valve island. The control signal output by the valve island is accurately transmitted to the drive device 1 to realize the coordinated operation of each component and further improve the system response speed and operation accuracy.

[0041] like Figure 2 and Figure 3 As shown, a first telescopic component 22 and a second telescopic component 31 are respectively installed on the first base frame 21 and the second base frame 32. The output ends of the first telescopic component 22 and the second telescopic component 31 are respectively installed on the first movable frame 23 and the second movable frame 33. The first telescopic component 22 and the second telescopic component 31 can drive the first movable frame 23 and the second movable frame 33 to extend and retract synchronously, adjusting the distance between the grippers 5 to adapt to different sizes of winding materials, ensuring the flexibility and adaptability of the winding process. At the same time, the telescopic components use high-precision sensors to monitor the extension and retraction status in real time, ensuring operational accuracy and safety. Both the first telescopic component 22 and the second telescopic component 31 can be driven by hydraulic or electric means, which can be flexibly selected according to actual needs. The drive system has a built-in fine-tuning device to precisely control the extension and retraction speed and amplitude, ensuring winding accuracy.

[0042] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A diaphragm tail winding mechanism, characterized in that, include: The first moving part (2) and the second moving part (3) move towards or in opposite directions along the line connecting them; A pair of grippers (5), each of the grippers (5) rotating on the opposite side of the first moving member (2) and the second moving member (3); A driving device (1), located on one side of the first moving member (2) and the second moving member (3), comprises: The drive shaft (13) is rotatably positioned on one side of the first moving part (2) and the second moving part (3); The transmission structure (14) is sleeved on the drive shaft (13) and flexibly drives the corresponding gripper (5).

2. The diaphragm tail winding mechanism as described in claim 1, characterized in that, Includes a pressure roller (4) placed between the jaws (5), the pressure roller (4) being adjustable to move along a direction perpendicular to the line connecting the two jaws (5) to selectively abut or move away from the stacked core located between the two jaws (5).

3. The diaphragm tail winding mechanism as described in claim 1, characterized in that, The flexible transmission includes a drive wheel (142) and a flexible element (143). The drive wheel (142) is connected to the drive shaft (13) and can be adjusted to move along the axial direction of the drive shaft (13). The flexible element (143) is placed at the drive end of the drive wheel (142) and the gripper (5).

4. The diaphragm tail winding mechanism as described in claim 3, characterized in that, The driving device (1) includes a guide wheel (141), which is connected to the driving shaft (13). One side wall of the guide wheel (141) is connected to the driving wheel (142). The driving wheel (142) and the guide wheel (141) rotate coaxially on the outer wall of the driving shaft (13). The first moving member (2) and the second moving member (3) are provided with guide heads (37) on the side near the guide wheel (141). The guide heads (37) are embedded in the annular groove of the guide wheel (141).

5. The diaphragm tail winding mechanism as described in claim 4, characterized in that, The first moving part (2) and the second moving part (3) respectively include a first moving frame (23) and a second moving frame (33). The two grippers (5) are respectively installed on the opposite side of the first moving frame (23) and the second moving frame (33). A connecting plate (36) is installed on the side of the first moving frame (23) and the second moving frame (33) facing the guide wheel (141). The guide head (37) is connected to the connecting plate (36).

6. The diaphragm tail winding mechanism as described in claim 5, characterized in that, Both the first movable frame (23) and the second movable frame (33) are equipped with bases (34), and the gripper (5) is rotatably mounted on the base (34).

7. The diaphragm tail winding mechanism as described in claim 5, characterized in that, The first movable frame (23) and the second movable frame (33) have reserved space around the corresponding gripper (5) for the installation of the flexible member (143).

8. The diaphragm tail winding mechanism as described in claim 5, characterized in that, The drive device (1) includes a base plate (12), and the drive shaft (13) is rotatably mounted on the base plate (12). The first movable frame (23) and the second movable frame (33) are respectively mounted on the side of the base plate (12) with a first base frame (21) and a second base frame (32). The first base frame (21) and the second base frame (32) are both mounted on the base plate (12).

9. The diaphragm tail winding mechanism as described in claim 5, characterized in that, A first protective cover (24) and a second protective cover (35) are respectively installed on the first movable frame (23) and the second movable frame (33).

10. The diaphragm tail winding mechanism as described in claim 8, characterized in that, The first base frame (21) and the second base frame (32) are respectively equipped with a first telescopic member (22) and a second telescopic member (31), and the output ends of the first telescopic member (22) and the second telescopic member (31) are respectively installed on the first movable frame (23) and the second movable frame (33).

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