A detachable multi-roll needle winding mechanism

Abstract

The present invention discloses a detachable multi-roll needle winding mechanism, which includes a turntable, a roll needle, and a roll needle driving structure. The roll needle driving structure is fixed on the turntable. The roll needle includes a roll needle shaft and a roll needle assembly. The roll needle shaft is movably arranged on the turntable through the roll needle driving structure. The roll needle assembly is detachably arranged on the roll needle shaft and the turntable. The roll needle assembly is detachably connected to the turntable, and a positioning structure and a clamping structure for fixing the roll needle assembly are arranged on the turntable and the roll needle shaft, ensuring the stability of the two-stage roll needle during winding. In this way, not only the winding efficiency of the roll needle is retained, but also the wound array can be disassembled, the wound battery cells can be unloaded and loaded, greatly improving the production efficiency of the winding machine.

Description

Technical Field

[0001] The present invention relates to a winding structure of a lithium battery cell, and in particular to a detachable multi-needle winding mechanism. Background Art

[0002] During the production process of lithium batteries, the winding of battery cells is a major production link. When winding battery cells, a winding machine is mostly used. As a structure for winding battery cells, the winding needle needs to be connected to a gas supply structure and needs to rotate as a whole. Therefore, the winding needle structure in the prior art is generally integrally installed, which can ensure the connection between the gas supply device and the winding needle and can drive the winding needle to rotate. However, with the continuous improvement of the efficiency of the winding machine and the continuous increase of the winding speed, operations such as feeding battery cells on the winding needle will consume a large amount of time, resulting in the consumption of the cycle time and becoming a bottleneck for the improvement of the winding machine efficiency. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides a segmented detachable multi-needle winding mechanism divided into a winding needle shaft and a winding needle assembly.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a detachable multi-needle winding mechanism, including a turntable, a winding needle and a winding needle driving structure. The winding needle driving structure is fixed on the turntable. The winding needle includes a winding needle shaft and a winding needle assembly. The winding needle shaft is movably arranged on the turntable through the winding needle driving structure, and the winding needle assembly is detachably arranged on the winding needle shaft and the turntable.

[0005] As an improvement of the above technical solution, a positioning structure and a clamping structure are further provided between the winding needle shaft and the winding needle assembly. An insertion joint is provided at the end of the winding needle assembly. The positioning structure is used for positioning the insertion joint when it is inserted into the turntable, and the clamping structure is used for clamping and fixing the insertion joint when it is docked with the winding needle shaft.

[0006] As a further improvement of the above technical solution, the positioning structure includes an inclined positioning and an insertion positioning. The inclined positioning is arranged on the turntable, and the insertion positioning is arranged on the winding needle shaft.

[0007] As a further improvement of the above technical solution, a rotating connection block is provided on the winding needle driving structure, and an inclined positioning block is provided on the rotating connection block. The middle edge of the inclined positioning block is inclined. An inclined positioning edge cooperating with the inclined positioning block is provided on the insertion joint. The winding needle assembly is inclinedly positioned by the cooperation of the inclined positioning edge on the insertion joint and the inclined positioning block.

[0008] As a further improvement of the above technical solution, air holes are provided inside the plug connector, a plug-in positioning member is provided at the end of the coiling needle shaft, and the plug-in positioning member is inserted into the air holes of the plug connector; the plug-in positioning member includes a plug-in part and a fixing part, the fixing part is fixed at the end of the coiling needle shaft, the plug-in part is inserted into the plug connector, and air holes communicating with the coiling needle shaft and the plug connector are provided in the middle of the plug-in structure, and the plug-in positioning member is a flexible structure.

[0009] As a further improvement of the above technical solution, the clamping structure includes a shaft sleeve, a tensioning member and a clamping member arranged on both sides of the shaft sleeve. The shaft sleeve is movably arranged outside the coiling needle shaft, the tensioning member pulls the clamping member through the shaft sleeve, and the clamping member is used to clamp the plug connector.

[0010] As a further improvement of the above technical solution, the tensioning member includes a tensioning cylinder, a tensioning block and tensioning jaws. The tensioning block is fixed at the end of the shaft sleeve away from the plug pin, the tensioning jaws are fixed on the air rod of the tensioning cylinder, and are rotatably clamped with the tensioning block.

[0011] As a further improvement of the above technical solution, the tensioning block is annularly sleeved on the shaft sleeve, and an annular tensioning groove is further provided in the middle of the tensioning block. A tensioning pin located in the tensioning groove and connected with the tensioning groove with a gap is provided on the tensioning jaws.

[0012] As a further improvement of the above technical solution, two tensioning jaws are provided, the two tensioning jaws are arranged oppositely, and are integrally connected between the two tensioning jaws; a fixing member is further provided on the tensioning cylinder, and the tensioning cylinder is fixed on the turntable through the fixing member.

[0013] As a further improvement of the above technical solution, the clamping member includes a clamping block and a clamping pin. A pin hole for pushing the clamping pin is provided inside the clamping block, and the clamping block is fixed at the end of the shaft sleeve close to the plug pin.

[0014] As a further improvement of the above technical solution, the pin hole is inclined from the side of the clamping block to the inside of the clamping block. Part of the clamping pin is located in the pin hole and part of it is stuck on the plug connector; a spherical groove is provided on the plug connector, and one end of the clamping pin is hemispherical and is clamped with the spherical groove of the plug connector.

[0015] As a further improvement of the above technical solution, the clamping block is annularly fixed on the shaft sleeve, and a plurality of pin holes are provided in the clamping block, and a plurality of clamping pins are also provided corresponding to the pin holes.

[0016] As a further improvement of the above technical solution, a clamping positioning structure is further provided on the clamping block, and the clamping positioning structure is used to fix the clamped clamping pin.

[0017] As a further improvement of the above technical solution, the clamping and positioning structure includes a clamping and positioning block and an elastic positioning pin. The clamping and positioning block is sleeved on the clamping block. A pin hole is provided in the clamping and positioning block, and the elastic positioning pin is elastically arranged in the pin hole. Elastic pin holes corresponding to the elastic positioning pin are provided on both the clamping block and the clamping pin. After the clamping pin is clamped, the elastic positioning pin is inserted into the pin hole of the clamping pin.

[0018] As a further improvement of the above technical solution, the winding needle driving structure includes a rotating motor, a pulley set, and a rotating connecting member. The pulley set is used to connect the rotating motor and the rotating connecting member, and the rotating motor drives the winding needle shaft through the rotating connecting member on the turntable.

[0019] As a further improvement of the above technical solution, the rotating connecting member includes a connecting portion movably connected to the bushing and a fixed portion fixed to the turntable. The fixed portion and the connecting portion are rotatably connected by a bearing, and the rotating connecting member is axially slidably connected to the bushing through the connecting portion.

[0020] As a further improvement of the above technical solution, a sliding protrusion is provided on the connecting portion, and a sliding groove is provided on the bushing at a position corresponding to the sliding protrusion. The rotating connecting member axially slides through the sliding groove and the protrusion.

[0021] As a further improvement of the above technical solution, an automatic needle inserting structure is further provided on the side of the turntable. The automatic needle inserting structure is provided with a needle inserting clamping jaw, and the needle inserting clamping jaw is used to clamp and disassemble the winding needle assembly on the turntable.

[0022] As a further improvement of the above technical solution, the automatic needle inserting structure further includes a clamping jaw driving member and a multi-directional clamping jaw rotating arm. The needle inserting clamping jaw is driven by the clamping jaw driving member to drive the multi-directional clamping jaw rotating arm to drive for disassembling the winding needles at different positions on the turntable.

[0023] As a further improvement of the above technical solution, the needle inserting clamping jaw is a finger cylinder, and protrusions for clamping the winding needle are further provided on the two clamping jaws of the finger cylinder.

[0024] The beneficial effects are as follows: The winding mechanism of the present invention not only sets the winding needle into two parts, namely a winding needle shaft and a winding needle assembly, but also detachably connects the winding needle assembly to the turntable, and positioning structures and clamping structures for fixing the winding needle assembly are provided on the turntable and the winding needle shaft, ensuring the stability of the two-stage winding needle during winding. In this way, both the winding efficiency of the winding needle is retained, and the wound array can be disassembled, and the wound battery cells can be unloaded and loaded, greatly improving the production efficiency of the winding machine. Description of the Drawings

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 is the assembly schematic diagram of the present invention;

[0027] Figure 2 is the schematic diagram of the turret part structure of the present invention;

[0028] Figure 3 is the sectional structure schematic diagram of the turret part of the present invention;

[0029] Figure 4 is the sectional structure schematic diagram of the positioning and clamping part of the present invention;

[0030] Figure 5 is the schematic diagram of the automatic pin insertion part structure of the present invention.

[0031] 1. Positioning structure; 11. Tilted positioning block; 12. Tilted positioning edge; 13. Plug-in positioning member; 2. Tightening member; 21. Tightening cylinder; 22. Tightening block; 23. Tightening jaw; 3. Clamping member; 31. Clamping block; 32. Clamping pin; 33. Sleeve; 4. Clamping and positioning structure; 41. Clamping and positioning block; 42. Elastic positioning pin; 5. Needle winding driving structure; 51. Rotating motor; 52. Belt pulley group; 53. Rotating connecting member; 6. Automatic pin insertion structure; 61. Jaw driving member; 62. Multi-directional jaw rotating arm; 63. Pin insertion jaw; 7. Turntable; 8. Needle winding assembly; 81. Plug connector; 9. Needle winding shaft. Specific embodiments

[0032] The concept, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present invention. In addition, all the connection / linkage relationships involved in the patent do not simply refer to the direct connection of components, but refer to the more optimal connection structure that can be formed by adding or reducing connection auxiliary parts according to the specific implementation situation. Each technical feature in the present invention can be interactively combined without mutual contradiction and conflict.

[0033] Refer to Figure 1 、 Figure 2, A detachable multi-roll needle winding mechanism, comprising a turntable 7, a winding needle and a winding needle driving structure 5. The winding needle driving structure 5 is fixed on the turntable 7. The winding needle includes a winding needle shaft 9 and a winding needle assembly 8. The winding needle shaft 9 is movably arranged on the turntable 7 through the winding needle driving structure 5. The winding needle assembly 8 is detachably arranged on the winding needle shaft 9 and the turntable 7. Multiple groups of winding needles are arranged on the turntable 7. After the lithium battery cells on a certain winding needle are wound, the winding needle assembly 8 can be automatically removed, and then the cells are unloaded and new cells are placed to continue winding. By replacing the winding needle with a clamping jaw, other action times exceeding the winding time in the turret are avoided, thereby improving the working efficiency of the turret of the winding machine and enhancing the efficiency of the winding machine. A positioning structure 1 and a clamping structure are also arranged between the winding needle shaft 9 and the winding needle assembly 8. An insertion joint 81 is arranged at the end of the winding needle assembly 8. The positioning structure 1 is used for positioning the insertion of the insertion joint 81 on the turntable 7, and the clamping structure is used for clamping and fixing when the insertion joint 81 is docked with the winding needle shaft 9. The setting of the positioning structure 1 and the clamping structure enables the winding needle assembly 8 to quickly and accurately find the installation position during installation and be further fixed after installation, ensuring the stability of the connection between the winding needle assembly 8 and the winding needle shaft 9 and the stability of the whole winding needle during the winding process.

[0034] Refer to Figure 3 , Figure 4, the positioning structure 1 includes inclined positioning and plug-in positioning. The inclined positioning is provided on the turntable 7, and the plug-in positioning is provided on the needle winding shaft 9. A rotating connection block is provided on the needle winding driving structure 5, and an inclined positioning block 11 is provided on the rotating connection block. The middle edge of the inclined positioning block 11 is inclined. An inclined positioning edge 12 that cooperates with the inclined positioning block 11 is provided on the plug connector 81. The needle winding assembly 8 is inclinedly positioned by the cooperation of the inclined positioning edge 12 on the plug connector 81 and the inclined positioning block 11. The turntable 7 is provided with a slot hole at the installation position of the needle winding assembly 8. The inclined positioning block 11 is located at the edge of the slot hole of the turntable 7. When the needle winding assembly 8 is plugged in, it first contacts the inclined positioning block 11. When the inclined positioning edge 12 on the plug connector 81 inserted into the installation hole contacts the inclined positioning edge 12 on the inclined positioning block 11, the two adjacent edges position and adjust the needle winding assembly 8 during the plugging process of the plug connector 81 until the two inclined edges are in full contact, completing the initial positioning of the needle winding assembly 8 during the plugging process. In addition to the initial positioning at the plugging edge, air holes are provided inside the plug connector 81. In order to ensure the connection between the air holes, a plug-in positioning member 13 is provided at the end of the needle winding shaft 9. The plug-in positioning member 13 is plugged into the air holes of the plug connector 81; the plug-in positioning member 13 includes a plugging part and a fixing part. The fixing part is fixed at the end of the needle winding shaft 9, and the plugging part is plugged into the plug connector 81. An air hole communicating with the needle winding shaft 9 and the plug connector 81 is provided in the middle of the plugging structure. The plug-in positioning member 13 is a flexible structure. The flexible plug-in positioning member 13 can not only achieve the connection buffering performance between the needle winding shaft 9 and the needle winding assembly 8, but also the elasticity of the flexible plug-in positioning member 13 can seal the connection between the two, improving the sealing performance of the connection between the air holes. In addition, a cross positioning groove is provided on the inclined positioning block 11, and a cross positioning block corresponding to the cross positioning groove is provided on the needle winding assembly 8. When the needle winding assembly 8 contacts the needle winding shaft 9, the cross positioning block is located in the cross positioning groove. The cross positioning block and the cross positioning groove are further clamped and fixed at the other end where the needle winding assembly 8 is connected to the needle winding driving structure 5, further improving the stability of the needle winding assembly 8 during rotation after installation.

[0035] The clamping structure includes a bushing 33, a tensioning member 2 and a clamping member 3 arranged on both sides of the bushing 33. The bushing 33 is movably arranged outside the needle winding shaft 9. The tensioning member 2 pulls the clamping member 3 through the bushing 33, and the clamping member 3 is used to clamp the plug connector 81. When the needles are butted, the end of the needle winding assembly 8 is butted against the end of the needle winding shaft 9, and there are connected air channels provided on the needle winding shaft 9 and the needle winding assembly 8. In order to improve the contact stability between the two and the sealing between the air channels, a clamping member 3 is arranged on the outer periphery of the end of the needle winding assembly 8. The clamping member 3 can clamp the end of the needle winding assembly 8 by the pulling of the tensioning member 2. At the same time, a force pointing in the direction of the needle winding shaft 9 is formed at the end of the needle winding assembly 8, making the connection between the needle winding assembly 8 and the needle winding shaft 9 more fitting and more stable, ensuring the use performance of the needles.

[0036] Specifically, the tensioning member 2 includes a tensioning cylinder 21, a tensioning block 22 and tensioning jaws 23. The tensioning block 22 is fixed to the end of the bushing 33 away from the needle. The tensioning jaws 23 are fixed on the air rod of the tensioning cylinder 21 and are rotatably clamped with the tensioning block 22. The tensioning block 22 is sleeved on the bushing 33 in a ring shape, and an annular tensioning groove is further provided in the middle of the tensioning block 22. A tensioning pin is arranged on the tensioning jaws 23 and is arranged in the tensioning groove with a clearance connection. The tensioning groove provided on the tensioning block 22 is equivalent to opening an annular groove in the middle position of the annular tensioning block 22, and the tensioning pin can just be arranged in the groove. However, in order to ensure that the tensioning block 22 can rotate without being affected by the tensioning pin, the tensioning pin is only located in the tensioning groove, but does not contact the periphery of the tensioning groove. When the tensioning cylinder 21 pulls the tensioning pin through the tensioning jaws 23, the tensioning pin moves in the direction of the tensioning cylinder 21, but will be blocked by the inner wall of one side of the tensioning groove during the movement, thereby driving the tensioning block to move together. The reverse movement process is the same. Since the tensioning groove is an open slot, in order to avoid the large resistance between the tensioning pin and the edge of the tensioning groove when the tensioning pin pulls the edge of the tensioning groove, resulting in the misalignment of the tensioning pin and the inability to pull the tensioning block 22, two tensioning jaws 23 are provided. The two tensioning jaws 23 are arranged oppositely, and are integrally connected between the two tensioning jaws 23. A clamping force is formed between the two integrally arranged opposite tensioning jaws 23, making the tensioning pin more stable when pulling in the tensioning groove. At the same time, the two tensioning pins at the relative positions on the tensioning make the tensioning block 22 more evenly stressed and the movement process more stable when being pulled. In addition to the two tensioning jaws 23, multiple tensioning jaws 23 can also be provided. Similarly, the more tensioning jaws 23 there are, the more stable the tensioning block 22 will be when being pulled. A fixing member is also provided on the tensioning cylinder 21, and the tensioning cylinder 21 is fixed to the turntable 7 through the fixing member.

[0037] The clamping member 3 includes a clamping block 31 and a clamping pin 32. A pin hole for pushing the clamping pin 32 is provided in the clamping block 31, and the clamping block 31 is fixed to the end of the bushing 33 near the pin. The pin hole is inclined from the side of the clamping block 31 to the inside of the clamping block 31. Part of the clamping pin 32 is located in the pin hole, and part of it is stuck on the socket 81. A spherical groove is provided on the socket 81, and one end of the clamping pin 32 is hemispherical and is engaged with the spherical groove of the socket 81. The clamping block 31 is annularly fixed on the bushing 33, and a plurality of pin holes are provided in the clamping block 31, and a plurality of clamping pins 32 are also provided corresponding to the pin holes. The inclined pin hole cooperates with the pin shaft. When the clamping block 31 provided with the inclined pin hole moves horizontally, the pin hole will provide an inclined downward force to the clamping pin 32 arranged therein, so that the clamping pin 32 abuts against the upper end of the pin assembly, which can not only form a side-angle extrusion on the pin assembly at the end of the pin assembly, so as to achieve the fixation of the pin assembly on the pin connecting shaft. In addition, the end of the pin shaft is set to be spherical with a certain elasticity, which can not only better cooperate with the pin assembly, but also when clamping, the pressure direction of the clamping pin 32 received by the pin hole is different, and the spherical surface can better buffer the force.

[0038] After the clamping pin 32 pulls and clamps the socket 81, in order to prevent the position of the socket 81 from changing due to a reverse external force, a clamping and positioning structure 4 is further provided on the clamping block 31. The clamping and positioning structure 4 is used to fix the clamped clamping pin 32. The clamping and positioning structure 4 includes a clamping and positioning block 41 and an elastic positioning pin 42. The clamping and positioning block 41 is sleeved on the clamping block 31. A pin hole is provided in the clamping and positioning block 41, and the elastic positioning pin 42 is elastically arranged in the pin hole. Elastic pin holes corresponding to the elastic positioning pin 42 are provided on both the clamping block 31 and the clamping pin 32. After the clamping pin 32 is clamped, the elastic positioning pin 42 is inserted into the pin hole of the clamping pin 32. When the clamping block 31 is not pulled by the tensioning member 2, the end of the elastic positioning pin 42 located in the clamping member 3 abuts against the outer edge of the clamping block 31, and the elastic positioning pin 42 is retracted into the pin hole as a whole. When the clamping block 31 is pulled by the tensioning member 2, the elastic pin holes provided on the clamping block 31 and the clamping pin 32 are corresponding to the position of the elastic positioning pin 42. At this time, the elastic force of the elastic positioning pin 42 will push the pin shaft into the elastic pin hole, so as to form the plug-in positioning of the clamping block 31.

[0039] The needle winding driving structure 5 includes a rotating motor 51, a pulley set 52 and a rotating connecting member 53. The pulley set 52 is used to connect the rotating motor 51 and the rotating connecting member 53. The rotating motor 51 drives the needle winding shaft 9 on the turntable 7 through the rotating connecting member 53. The rotating connecting member 53 includes a connecting portion movably connected to the shaft sleeve 33 and a fixed portion fixed to the turntable 7. The fixed portion and the connecting portion are rotatably connected by a bearing. The rotating connecting member 53 is axially slidably connected to the shaft sleeve 33 through the connecting portion. A sliding protrusion is provided on the connecting portion, and a chute is provided on the shaft sleeve 33 at a position corresponding to the sliding protrusion. The rotating connecting member 53 axially slides through the chute and the protrusion. The setting of the sliding protrusion and the chute limits the degrees of freedom between the shaft sleeve 33 and the connecting member, only retaining the axial degrees of freedom of the two, and realizing that the two can axially slide within the range of the chute while rotating simultaneously.

[0040] Referring to Figure 5 , an automatic needle inserting structure 6 is further provided on the side of the turntable 7. A needle inserting jaw 63 is provided on the automatic needle inserting structure 6. The needle inserting jaw 63 is used to clamp and remove the needle winding assembly 8 on the turntable 7. The automatic needle inserting structure 6 further includes a jaw driving member 61 and a multi-directional jaw rotating arm 62. The needle inserting jaw 63 is driven by the jaw driving member 61 to drive the multi-directional jaw rotating arm 62 to remove the needles at different positions on the turntable 7. The jaw rotating arms are connected by a rotating shaft, and multiple jaw rotating arms can drive the needle inserting jaw 63 to move in multiple directions, enabling the removal of the needle winding assembly 8 at any position and its installation after unloading. The needle inserting jaw 63 is a finger cylinder, and protrusions for clamping the needle are further provided on the two jaws of the finger cylinder. The jaws provided with protrusions can better contact the needle winding assembly 8 and the clamping is more stable.

[0041] The above is a specific description of the preferred embodiment of the present invention. However, the present invention is not limited to the above embodiments. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A detachable multi-needle winding mechanism, characterized in that: It includes a turntable, a winding needle and a winding needle driving structure. The winding needle driving structure is fixed on the turntable. The winding needle includes a winding needle shaft and a winding needle assembly. The winding needle shaft is movably arranged on the turntable through the winding needle driving structure, and the winding needle assembly is detachably arranged on the winding needle shaft and the turntable; A positioning structure and a clamping structure are also arranged between the winding needle shaft and the winding needle assembly. An insertion joint is arranged at the end of the winding needle assembly. The positioning structure is used for positioning the insertion joint when it is inserted into the turntable, and the clamping structure is used for clamping and fixing when the insertion joint is docked with the winding needle shaft; The positioning structure includes inclined positioning and insertion positioning. The inclined positioning is arranged on the turntable, and the insertion positioning is arranged on the winding needle shaft; A rotating connection block is arranged on the winding needle driving structure, and an inclined positioning block is arranged on the rotating connection block. The middle edge of the inclined positioning block is inclined. An inclined positioning edge matching with the inclined positioning block is arranged on the insertion joint. The winding needle assembly is inclinedly positioned by the cooperation of the inclined positioning edge on the insertion joint and the inclined positioning block; An air hole is arranged inside the insertion joint, and an insertion positioning part is arranged at the end of the winding needle shaft. The insertion positioning part is inserted into the air hole of the insertion joint; the insertion positioning part includes an insertion part and a fixing part. The fixing part is fixed at the end of the winding needle shaft, and the insertion part is inserted into the insertion joint. A gas hole communicating with the winding needle shaft and the insertion joint is arranged in the middle of the insertion structure. The insertion positioning part is a flexible structure.

2. The detachable multi-needle winding mechanism according to claim 1, characterized in that: The clamping structure includes a shaft sleeve, a tensioning part and a clamping part arranged on both sides of the shaft sleeve. The shaft sleeve is movably arranged outside the winding needle shaft. The tensioning part pulls the clamping part through the shaft sleeve, and the clamping part is used for clamping the insertion joint.

3. The detachable multi-needle winding mechanism according to claim 2, characterized in that: The tensioning part includes a tensioning cylinder, a tensioning block and a tensioning jaw. The tensioning block is fixed at the end of the shaft sleeve far from the insertion needle, and the tensioning jaw is fixed on the air rod of the tensioning cylinder and is rotationally clamped with the tensioning block.

4. The detachable multi-needle winding mechanism according to claim 3, characterized in that: The tensioning block is annularly sleeved on the shaft sleeve, and an annular tensioning groove is also arranged in the middle of the tensioning block. A tensioning pin located in the tensioning groove and in clearance connection with the tensioning groove is arranged on the tensioning jaw.

5. The detachable multi-needle winding mechanism according to claim 3, characterized in that: Two tensioning jaws are arranged. The two tensioning jaws are arranged oppositely and are integrally connected between them; a fixing part is also arranged on the tensioning cylinder, and the tensioning cylinder is fixed on the turntable through the fixing part.

6. The detachable multi-needle winding mechanism according to claim 2, characterized in that: The clamping part includes a clamping block and a clamping pin. A pin hole for pushing the clamping pin is arranged inside the clamping block, and the clamping block is fixed at the end of the shaft sleeve close to the insertion needle.

7. The detachable multi-needle winding mechanism according to claim 6, It is characterized in that: The pin hole is inclined from the side of the clamping block to the inside of the clamping block. A part of the clamping pin is located in the pin hole, and the other part is stuck on the plug connector. A spherical groove is arranged on the plug connector, and one end of the clamping pin is hemispherical and is clamped with the spherical groove of the plug connector.

8. The detachable multi-roll needle winding mechanism according to claim 7, It is characterized in that: The clamping block is fixedly arranged on the shaft sleeve in a ring shape, and a plurality of pin holes are arranged in the clamping block, and a plurality of clamping pins are correspondingly arranged for the pin holes.

9. The detachable multi-roll needle winding mechanism according to claim 6, It is characterized in that: A clamping and positioning structure is further arranged on the clamping block, and the clamping and positioning structure is used for fixing the clamped clamping pin.

10. The detachable multi-roll needle winding mechanism according to claim 9, It is characterized in that: The clamping and positioning structure includes a clamping and positioning block and an elastic positioning pin. The clamping and positioning block is sleeved on the clamping block. A pin hole is arranged in the clamping and positioning block, and the elastic positioning pin is elastically arranged in the pin hole. Elastic pin holes corresponding to the elastic positioning pin are arranged on both the clamping block and the clamping pin, and the elastic positioning pin is inserted into the pin hole of the clamping pin after the clamping pin is clamped.

11. The detachable multi-roll needle winding mechanism according to claim 2, It is characterized in that: The needle winding driving structure includes a rotating motor, a belt pulley group and a rotating connecting piece. The belt pulley group is used to connect the rotating motor and the rotating connecting piece, and the rotating motor drives the needle winding shaft through the rotating connecting piece on the turntable.

12. The detachable multi-roll needle winding mechanism according to claim 11, It is characterized in that: The rotating connecting piece includes a connecting part movably connected to the shaft sleeve and a fixed part fixed on the turntable. The fixed part and the connecting part are rotationally connected by a bearing, and the rotating connecting piece is axially slidably connected to the shaft sleeve through the connecting part.

13. The detachable multi-roll needle winding mechanism according to claim 12, It is characterized in that: A sliding protrusion is arranged on the connecting part, and a sliding groove is arranged on the shaft sleeve at a position corresponding to the sliding protrusion. The rotating connecting piece axially slides through the sliding groove and the protrusion.

14. The detachable multi-roll needle winding mechanism according to claim 1, It is characterized in that: An automatic needle inserting structure is further arranged on the side of the turntable. A needle inserting claw is arranged on the automatic needle inserting structure, and the needle inserting claw is used for clamping and disassembling the needle winding assembly on the turntable.

15. The detachable multi-roll needle winding mechanism according to claim 14, It is characterized in that: The automatic needle inserting structure further includes a claw driving part and a multi-directional claw rotating arm. The claw driving part drives the multi-directional claw rotating arm, and the multi-directional claw rotating arm drives the needle inserting claw to disassemble the needles at different positions on the turntable.

16. The detachable multi-roll needle winding mechanism according to claim 14, It is characterized in that: The needle inserting claw is a finger cylinder, and protrusions for clamping the needle winding are further arranged on the two claws of the finger cylinder.

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