Winding needle cleaning mechanism

Abstract

The utility model relates to a winding needle cleaning mechanism which comprises a base, a needle penetrating and pulling assembly, an overturning assembly, a winding assembly and a front supporting assembly, the needle penetrating and pulling assembly and the overturning assembly are installed on the base, the overturning assembly drives the winding assembly to rotate, and the winding assembly comprises a winding needle, a winding needle installation rod, a winding needle sleeve and a needle nozzle structure. The winding needle is installed on the winding needle installation rod and arranged on the winding needle sleeve in a penetrating mode, the winding needle sleeve is fixedly arranged on the overturning assembly, the needle nozzle structure is arranged on the winding needle in a sleeving mode and fixedly arranged on the winding needle sleeve, the needle penetrating and pulling assembly drives the winding needle installation rod to move relative to the winding needle sleeve, and the front supporting assembly supports the front end of the winding needle. According to the winding needle cleaning mechanism, the winding needle penetrating and pulling assembly retracts the traction winding needle, the cleaning block scrapes particle dust adhering to the surface of the winding needle, and the particle dust is automatically accumulated in the spiral groove through the extrusion effect, so that automatic cleaning of the winding needle is achieved, manual cleaning can be conducted without shutdown, the cleanliness of the winding needle can be guaranteed, and meanwhile the winding needle cleaning efficiency is improved. The production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a winding needle cleaning mechanism. Background Art

[0002] During the cylindrical battery winding process, a winding machine is required to achieve the winding of the cylindrical battery. In order to avoid the winding needle from being pulled out from the battery cell and causing the inner hole diaphragm of the battery to be pulled out, the winding needle needs to be wiped manually to ensure that the surface of the winding needle is clean and smooth.

[0003] When the cylindrical winding needle is used to wind aramid diaphragm cells, the coating on the diaphragm will fall off in the form of particles or blocks and adhere to the surface of the winding needle, causing the winding needle to pull out the cell. Therefore, it is necessary to manually wipe the winding needle frequently. Due to manual wiping, the staff and the winding needle are in direct contact. In order to ensure the safety of the staff, it is impossible to increase the wiping efficiency by driving the winding needle to rotate by the winding machine, resulting in the problem of low manual wiping efficiency. At the same time, the manual wiping method will also cause some wiping areas to be missed, resulting in the problem of inadequate manual wiping and cleaning. Utility Model Content

[0004] The main purpose of the utility model is to provide a winding needle cleaning mechanism to solve the above technical problems, and can clean the coating peeling adhesive on the winding needle when the winding needle is retracted.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A winding needle cleaning mechanism comprises a base, a needle insertion and extraction assembly, a flip assembly, a winding assembly and a front supporting assembly, the needle insertion and extraction assembly and the flip assembly are mounted on the base, the flip assembly drives the winding assembly to rotate, the winding assembly comprises a winding needle, a winding needle mounting rod, a winding needle sleeve and a needle nozzle structure, the winding needle is mounted on the winding needle mounting rod, the winding needle is inserted into the winding needle sleeve, the winding needle sleeve is fixed on the flip assembly, the needle nozzle structure is sleeved on the winding needle and fixed to the winding needle sleeve, the needle insertion and extraction assembly drives the winding needle mounting rod to move relative to the winding needle sleeve, and the front supporting assembly supports the front end of the winding needle.

[0007] As a preferred technical solution, the needle nozzle structure includes a needle nozzle seat, a cleaning block and an inner needle nozzle. The needle nozzle seat is fixed to the needle winding sleeve, the inner needle nozzle is fixed to the needle nozzle seat, and the cleaning block is installed between the needle nozzle seat and the inner needle nozzle.

[0008] As a preferred technical solution, a mounting groove is provided on the needle nozzle seat, and the cleaning block is installed in the mounting groove.

[0009] As a preferred technical solution, a spiral groove is provided on the cleaning block.

[0010] As a preferred technical solution, the flip assembly includes a turntable, a flip motor, a driving wheel and a driven wheel, the driven wheel is installed on the turntable, the driving wheel is meshed with the driven wheel, and the flip motor drives the driving wheel to rotate.

[0011] As a preferred technical solution, the needle insertion and extraction assembly includes a needle insertion structure and a needle extraction structure, and the needle insertion structure and the needle extraction structure respectively drive the needle winding mounting rod to move.

[0012] As a preferred technical solution, the needle threading structure includes a needle threading motor, a cam mounting seat, a cam, a guide rail, a needle threading connecting block, a cam lifting cylinder and a screw rod. The cam is mounted on the cam mounting seat, the screw rod is engaged with the needle threading connecting block, the cam lifting cylinder is mounted on the needle threading connecting block, the cam lifting cylinder drives the cam mounting seat to move, and the needle threading motor drives the screw rod to rotate.

[0013] As a preferred technical solution, a pull head is provided on the winding needle mounting rod, and the pull head abuts against the cam.

[0014] The beneficial effects of the utility model are: the above-mentioned winding needle cleaning mechanism, the threading and pulling needle assembly will pull the winding needle back, the cleaning block will scrape off the particulate dust adhering to the surface of the winding needle, and automatically accumulate the particulate dust into the spiral groove through the extrusion effect, thereby realizing automatic cleaning of the winding needle without stopping the machine for manual cleaning, which can improve production efficiency and reduce the occurrence of battery core pulling while ensuring the cleanliness of the winding needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the winding needle cleaning mechanism involved in the utility model;

[0016] Figure 2 It is a structural schematic diagram of the winding assembly involved in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the needle nozzle structure involved in the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] like Figure 1As shown, a winding needle cleaning mechanism includes a base 1, a threading needle assembly 4, a flipping assembly 3, a winding assembly 2 and a front support assembly 5. The threading needle assembly 4 and the flipping assembly 3 are installed on the base 1. In this embodiment, the winding assembly 2 is provided with three, which correspond to the winding station, the gluing station and the unloading station of the battery cell winding respectively. The flipping assembly 3 drives the winding assembly 2 to rotate, and drives the winding assembly 2 to perform station conversion. The winding assembly 2 rotates to wrap the winding diaphragm around the pole piece to form a battery cell. The threading needle assembly 4 is used to drive the winding needle assembly 2 to extend or retract, so that the winding needle assembly 2 extends for winding or the winding needle assembly 2 is retracted to unload the battery cell. The front support assembly 5 supports the front end of the winding needle assembly 2, which is used to assist the winding assembly 2 in winding or assist the diaphragm cutting device to cut the diaphragm.

[0020] Please continue to refer to Figure 1 As shown, the flip assembly 3 includes a turntable 33, a flip motor 31, a driving wheel 32 and a driven wheel 34. The driven wheel 34 is installed on the turntable 33. The driving wheel 32 is meshed with the driven wheel 34. The flip motor 31 drives the driving wheel 32 to rotate, thereby driving the three winding assemblies 2 to rotate, thereby performing work station conversion.

[0021] like Figure 2 As shown, the winding assembly 2 includes a winding needle 22, a winding needle mounting rod 21, a winding needle sleeve 23, a needle nozzle structure 24, a rotating gear 26 and a winding motor 27. The winding needle 22 and the rotating gear 26 are installed on the winding needle mounting rod 21, and the winding needle 22 is inserted into the winding needle sleeve 23. The winding needle sleeve 23 and the winding motor 27 are fixed on the turntable 33. The needle nozzle structure 24 is sleeved on the winding needle 22 and fixed to the winding needle sleeve 23. The winding motor 27 is connected to the rotating gear 26 through a belt. The winding motor 27 is driven to drive the rotating gear 26 to rotate, thereby rotating the winding needle 22 to rotate and winding the battery cell. A pulling head 25 is provided on the winding needle mounting rod 21. After the needle insertion and extraction assembly 4 is connected to the pulling head 25, the pulling head 25 is driven to move, driving the winding needle 22 to move, thereby extending or retracting the winding needle 22.

[0022] like Figure 3As shown, the needle nozzle structure 24 includes a needle nozzle seat 241, a cleaning block 242 and an inner needle nozzle 243. The needle nozzle seat 241 is fixed to the winding needle sleeve 23, and the inner needle nozzle 243 is fixed to the needle nozzle seat 241. The cleaning block 242 is installed between the needle nozzle seat 241 and the inner needle nozzle 243. The needle nozzle seat 241 is provided with a mounting groove 244, and the cleaning block 242 is installed in the mounting groove 244. The lower end of the needle nozzle seat 241 is provided with a top screw, and the top screw abuts against the cleaning block 242, so that the cleaning block 242 is fixed in the mounting groove 242, so that the needle nozzle seat 241 can achieve positioning and fixing. The cleaning block 242 is provided with a spiral groove 245, and the winding needle 22 is inserted into the spiral groove 245. When the winding needle 22 is retracted, the cleaning block 242 will scrape off the granular dust adhering to the surface of the winding needle 22, and automatically accumulate the granular dust into the spiral groove 245 through the extrusion effect.

[0023] Please continue to refer to Figure 1 As shown, the needle insertion and extraction assembly 4 includes a needle insertion structure 41 and a needle extraction structure 42. The needle insertion structure 41 and the needle extraction structure 42 respectively drive the needle winding assembly 2 to move. The needle insertion structure 41 is used to drive the winding needle 22 to extend, and the needle extraction structure 42 is used to drive the winding needle 22 to retract. In this embodiment, the needle insertion structure 41 and the needle extraction structure 42 have the same structure. Therefore, in order to avoid redundancy, only the needle insertion structure 41 is described.

[0024] The needle threading structure 41 includes a needle threading motor 411, a cam mounting seat 414, a cam 413, a guide rail 412, a needle threading connecting block 415, a cam lifting cylinder 416 and a screw rod 417. The two cams 413 are mounted on the cam mounting seat 414, and the spacing between the two cams 413 matches the width of the pull head 25. The screw rod 417 engages with the needle threading connecting block 415. The cam lifting cylinder 416 is installed on the needle threading connecting block 415. The cam lifting cylinder 416 drives the cam mounting seat 414 to move, and the needle threading motor 411 drives the screw rod 417 to rotate. When it is necessary to thread the needle, the needle threading motor 411 drives the screw rod 417 to rotate, driving the needle threading connecting block 415 to move, thereby driving the cam mounting seat 414 to move along the guide rail 412, so that the two cams 413 are aligned with the pulling head 25, and the cam lifting cylinder 415 drives the cam mounting seat 414 to move, so that the two cams 414 abut against the pulling head 25, and the needle threading motor 411 drives the screw rod 417 to rotate, driving the needle threading connecting block 415 to move and reset, thereby pulling the pulling head 25 to move, and then extending the winding needle 22.

[0025] The above-described embodiments are only preferred examples of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent application scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A needle cleaning mechanism, characterized in that: It includes a base, a threading and pulling needle assembly, a flip assembly, a winding assembly and a front supporting assembly. The threading and pulling needle assembly and the flip assembly are installed on the base. The flip assembly drives the winding assembly to rotate. The winding assembly includes a winding needle, a winding needle mounting rod, a winding needle sleeve and a needle nozzle structure. The winding needle is installed on the winding needle mounting rod. The winding needle is inserted into the winding needle sleeve. The winding needle sleeve is fixed on the flip assembly. The needle nozzle structure is sleeved on the winding needle and fixed with the winding needle sleeve. The threading and pulling needle assembly drives the winding needle mounting rod to move relative to the winding needle sleeve. The front supporting assembly supports the front end of the winding needle.

2. The needle cleaning mechanism according to claim 1, characterized in that: The needle nozzle structure comprises a needle nozzle seat, a cleaning block and an inner needle nozzle. The needle nozzle seat is fixed to the needle winding sleeve, the inner needle nozzle is fixed to the needle nozzle seat, and the cleaning block is installed between the needle nozzle seat and the inner needle nozzle.

3. The needle cleaning mechanism according to claim 2, characterized in that: The needle nozzle seat is provided with a mounting groove, and the cleaning block is installed in the mounting groove.

4. The needle cleaning mechanism according to claim 3, characterized in that: The cleaning block is provided with a spiral groove.

5. The needle cleaning mechanism according to claim 2, 3 or 4, characterized in that: The flip assembly includes a turntable, a flip motor, a driving wheel and a driven wheel. The driven wheel is installed on the turntable, the driving wheel is meshed with the driven wheel, and the flip motor drives the driving wheel to rotate.

6. The needle cleaning mechanism according to claim 5, characterized in that: The needle insertion and extraction assembly comprises a needle insertion structure and a needle extraction structure, and the needle insertion structure and the needle extraction structure respectively drive the needle winding mounting rod to move.

7. The needle cleaning mechanism according to claim 6, characterized in that: The needle threading structure includes a needle threading motor, a cam mounting seat, a cam, a guide rail, a needle threading connecting block, a cam lifting cylinder and a screw rod. The cam is mounted on the cam mounting seat, the screw rod is engaged with the needle threading connecting block, the cam lifting cylinder is mounted on the needle threading connecting block, the cam lifting cylinder drives the cam mounting seat to move, and the needle threading motor drives the screw rod to rotate.

8. The needle cleaning mechanism according to claim 7, characterized in that: The winding needle mounting rod is provided with a pull head, and the pull head abuts against the cam.

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