CN218004980U

CN218004980U - Automatic winding equipment for battery cell

Info

Publication number: CN218004980U
Application number: CN202221409000.3U
Authority: CN
Inventors: 陈胜德; 蓝维嘉; 刘忠帆; 刘晓荃
Original assignee: Shenzhen Hymson Laser Intelligent Equipment Co Ltd
Current assignee: Hymson Laser Technology Group Co Ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-12-09
Anticipated expiration: 2032-06-07

Abstract

The application relates to an automatic coiling equipment of electricity core, it includes: the station module comprises a turntable and a station changing assembly in driving connection with the turntable; the needle rolling kit comprises a first needle piece and a second needle piece, and the second needle piece is arranged on the first needle piece in a sliding mode along a first direction; the needle pulling module comprises a first needle pulling assembly and a second needle pulling assembly, wherein the driving end of the first needle pulling assembly drives the first needle to reciprocate, and the driving end of the second needle pulling assembly is suitable for driving the second needle to move when moving away from the turntable; and the needle threading module and the needle pulling module are respectively arranged at two adjacent stations, and the driving end of the needle threading module is suitable for driving the second needle piece to move when moving close to the turntable. The needle pulling module and the needle threading module are matched to pull out the needle and thread the needle to the winding needle sleeve, so that the required structure for pulling out the needle and threading the needle to the winding needle sleeve is simplified, and the installation space is saved.

Description

Automatic winding equipment for battery cell

Technical Field

The application relates to the technical field of battery manufacturing, in particular to automatic winding equipment for a battery core.

Background

At present, lithium batteries are widely applied to industries such as notebook computers, electric tools, new energy vehicles and the like, and with the development of the industries, the demand of the lithium batteries is continuously increased, but the requirements on the lithium batteries are higher and higher.

In the prior art, a winding needle of a three-station winding head comprises a barrel body and two needle bodies arranged in the barrel body, wherein the two needle bodies can be connected with the barrel body in a sliding manner along the axial direction of the barrel body. At the winding station, a first needle body extends out, then the diaphragm is sent to the first needle body, a second needle body extends out, and the diaphragm is clamped between the two needle bodies; at the blanking station, the first needle body of the winding needle is drawn out first, and then the second needle body of the winding needle is drawn out, so that the possibility that the pole piece and the diaphragm are driven to move when the needle is drawn out simultaneously is reduced.

Therefore, in the prior art, the needle pulling and inserting assemblies need to be arranged at the blanking station and the winding station, and the needle pulling and inserting assemblies can drive the two needle bodies to independently slide, so that the two needle bodies can be sequentially pulled out at the blanking station, and the two needle bodies can be sequentially driven to penetrate out at the winding station. However, the arrangement of two groups of the same insertion and extraction needle assemblies makes the whole winding equipment complicated in structure and large in occupied space.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an automatic battery cell winding device to solve the technical problems that the winding device in the related art is complex in structure and large in occupied space.

An automatic cell winding apparatus, comprising:

the station module comprises a turntable and a station changing module in driving connection with the turntable;

the length direction of the plurality of needle rolling kits is arranged along a first direction, the plurality of needle rolling kits are all arranged on the turntable in the first direction in a penetrating mode, the plurality of needle rolling kits are respectively located at different stations, each needle rolling kit comprises a first needle piece and a second needle piece, and the second needle piece is arranged on the first needle piece in a sliding mode along the first direction;

the needle pulling module comprises a first needle pulling assembly and a second needle pulling assembly, wherein the driving end of the first needle pulling assembly is suitable for driving the first needle to reciprocate in the first direction, the driving end of the second needle pulling assembly moves in the first direction, and the driving end of the second needle pulling assembly is suitable for driving the second needle to move when moving away from the turntable;

the needle threading module and the needle pulling module are respectively arranged at two adjacent stations, the driving end of the needle threading module moves in the first direction, and the driving end of the needle threading module is suitable for driving the second needle piece to move when moving close to the turntable.

In some embodiments, the first pull pin assembly comprises:

the driving end of the first needle pulling linear module moves in the first direction;

the first needle connecting piece of pulling out, first needle spare includes first needle handle, first pull out the needle connecting piece with the first drive end of pulling out needle straight line module is connected, first pull out the needle connecting piece include two first needle connection faces of pulling out, two first pull out the needle connection face be suitable for respectively with first needle handle orientation with deviate from the side contact of carousel.

In some embodiments, the second pin pulling module comprises:

the driving end of the second needle pulling linear module moves in the first direction;

the second pulls out the needle connecting piece, the second needle spare includes the second needle handle, the second pull out the needle connecting piece with the drive end of the straight line module of second pull out needle is connected, the second pulls out the needle connecting piece and includes the second and pulls out the needle connection face, the second pull out the needle connection face be suitable for with the orientation of second needle handle the side contact of carousel.

In some embodiments, the needle pulling module further comprises a limiting component, which comprises:

the elastic limiting part comprises an unlocking inclined plane and a limiting plane, the second needle handle is far away from the rotary table and can be pushed to drive the unlocking inclined plane to elastically move in the second direction, and the limiting plane is suitable for contacting with the side face of the rotary table, which faces the second needle handle.

In some embodiments, the spacing assembly further comprises an adjustment assembly comprising:

the elastic limiting piece is connected to the adjusting mounting plate;

the driving end of the adjusting piece is arranged along the second direction in a sliding mode and connected with the adjusting installation plate.

In some embodiments, the needle threading module comprises:

a needle seat is penetrated;

the needle threading linear module is arranged on the needle threading seat, and the driving end of the needle threading linear module moves in the first direction;

the needle threading connecting piece is connected with the driving end of the needle threading linear module and comprises a needle threading connecting face, and the needle threading connecting face is suitable for being in contact with the side face, deviating from the rotary table, of the second needle handle.

In some embodiments, the needle threading linear module comprises a slider-crank mechanism comprising:

the sliding block is arranged on the needle threading base in a sliding mode along the first direction and is connected with the needle threading connecting piece;

a needle threading drive;

and one end of the connecting rod assembly is hinged to the sliding block, and the other end of the connecting rod assembly is connected with the driving end of the needle penetrating driving piece.

In some embodiments, the needle winding kit further comprises a limiting structure, which comprises:

the limiting block is connected with the second needle body;

the spacing groove, first needle includes first needle body, the second needle body is worn to locate first needle body, the spacing groove is followed first direction is seted up in the lateral wall of first needle body, the stopper slide set up in the spacing groove.

In some embodiments, the automatic battery cell winding apparatus further includes a winding pin transmission module, which includes:

the transmission sleeves are sleeved in sequence;

the plurality of transmission sleeves are respectively in transmission connection with the plurality of winding needle kits through the gear sets;

and the winding driving assemblies are respectively in driving connection with the transmission sleeves.

In some embodiments, the automatic battery cell winding apparatus further includes an outer needle nozzle module, which includes:

the supporting head and the turntable are arranged at intervals in the first direction and are coaxially fixed with the turntable through a transmission rod;

the outer needle piece comprises an outer needle cylinder, a support hole is formed in the outer needle cylinder, and the support hole is arranged opposite to the plurality of needle rolling kits in the first direction.

In some embodiments, the outer needle further comprises an ejector pin, the ejector pin penetrates through the outer needle cylinder through the support hole, the first needle comprises a first needle head, the second needle comprises a second needle head, and the ejector pin is suitable for being inserted between the first needle head and the second needle head.

In some embodiments, a notch is formed in one end surface of the first needle and/or the second needle.

In some embodiments, the outer needle further comprises an elastic abutting member, and two ends of the elastic abutting member are respectively connected with the needle ejecting member and the outer needle cylinder.

In some embodiments, the outer needle mouth module further comprises an outer needle pulling assembly, the outer needle pulling assembly and the needle pulling module are located at the same station, and the driving end of the outer needle pulling assembly moves along the first direction and is suitable for being connected with the ejector pin.

In some embodiments, the pull-out needle assembly comprises:

the driving end of the outer needle pulling linear module moves along a first direction;

the outer needle connecting piece that pulls out, pull out the needle connecting piece outward with the drive end of pulling out needle straight line module outward is connected, pull out the needle connecting piece outward including pulling out the needle and connecting the face, the thimble spare includes outer needle handle, pull out the needle connection face outward be suitable for with outer needle handle orientation the side contact of carousel.

In some embodiments, the tooling change component comprises:

the driven gear is coaxially fixed with the rotary disc;

a drive gear engaged with the driven gear;

and the station changing driving piece is in driving connection with the driving gear.

The beneficial effect that technical scheme that this application provided brought includes:

the embodiment of the application provides an automatic battery cell winding device, a plurality of winding needle kits penetrate through a rotary table, a tooling change component drives the rotary table to drive the plurality of winding needle kits to circularly move on a plurality of stations, when a blanking station of a battery cell is arranged, a first needle pulling component and a second needle pulling component in a needle pulling module sequentially drive a first needle component and a second needle component to move and pull out from the battery cell, the needle pulling is finished at the first needle component and the second needle component, and after a winding-formed battery cell is taken away, the first needle pulling component can immediately drive the first needle component to stretch out, the winding needle kit stretching out the first needle component is switched to the next station along with the rotation of the rotary table, the winding needle kit is arranged at the station where the needle threading module is located, a diaphragm can be conveyed to the first needle component, and then the needle threading module drives the second needle component to stretch out, so that the diaphragm can be clamped. Wherein, under the effect of drawing the needle module, the needle module of wearing only needs to drive the second needle spare and accomplishes the motion of wearing the needle for this coiling equipment is simplified by this station department structure, has saved installation space.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic diagram of an automatic cell winding apparatus provided in an embodiment of the present application;

fig. 2 is a schematic view of another view angle of the automatic battery cell winding apparatus provided in the embodiment of the present application;

FIG. 3 is a schematic view of a needle winding kit according to an embodiment of the present disclosure;

FIG. 4 is a longitudinal cross-sectional view of the needle winding kit and the outer needle provided by the embodiment of the present application;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is a longitudinal cross-sectional view of the first and second needle members in a needle withdrawing configuration according to an embodiment of the present application;

FIG. 7 is a partial top view of a needle winding actuator module according to an embodiment of the present disclosure;

FIG. 8 is a longitudinal cross-sectional view of a drive sleeve provided in accordance with an embodiment of the present application;

FIG. 9 is a partial schematic view of a winding pin driving module according to an embodiment of the present disclosure;

FIG. 10 is a schematic view of a portion of a needle winding actuator module according to an embodiment of the present disclosure;

FIG. 11 is a schematic view of an outer nozzle module according to an embodiment of the present disclosure;

FIG. 12 is a schematic view of an outer needle provided in accordance with an embodiment of the present application;

FIG. 13 is a longitudinal cross-sectional view of an outer needle provided in accordance with an embodiment of the present application;

FIG. 14 is a schematic view of a thimble element according to an embodiment of the present disclosure inserted between a first needle element and a second needle element;

FIG. 15 is a schematic view of the needle assembly being pulled out from between the first needle and the second needle according to an embodiment of the present disclosure;

FIG. 16 is a schematic view of a withdrawn needle assembly provided by an embodiment of the present application;

FIG. 17 is an enlarged view at B in FIG. 11;

FIG. 18 is a schematic view of a needle extracting module according to an embodiment of the present disclosure;

FIG. 19 is a partial schematic view of a needle withdrawing module according to an embodiment of the present application;

fig. 20 is a schematic view of the second needle handle contacting the elastic limiting member according to the embodiment of the present application;

fig. 21 is a schematic view illustrating the second needle handle being limited by the elastic limiting member according to the embodiment of the present application;

fig. 22 is a schematic view of a needle threading module according to an embodiment of the present application;

fig. 23 is a schematic view of another view angle of the needle threading module according to the embodiment of the present application.

In the figure: 1. a machine base; 2. a station module; 21. a turntable; 22. a station changing assembly; 221. a driving gear; 222. a driven gear; 223. a station-changing driving member; 224. a balance gear; 3. a needle winding kit; 31. a first needle; 311. a first needle body; 312. a first needle handle; 313. a first needle; 32. a second needle; 321. a second needle body; 322. a second needle handle; 323. a second needle; 33. a needle cylinder; 34. a limiting structure; 341. a limiting block; 342. a limiting groove; 343. a keyway; 3a, a gap; 4. a winding needle transmission module; 41. a transmission sleeve; 42. a gear set; 43. a winding drive assembly; 431. a driving pulley; 432. a driven pulley; 433. a belt; 434. winding the driving member; 5. a needle pulling module; 51. a first needle extracting assembly; 511. a first needle pulling linear module; 512. a first pin pulling connecting piece; 5121. a first pin pulling mounting plate; 5122. a first needle pulling pushing piece; 512a, a first needle pulling connecting surface; 52. a second needle extracting assembly; 521. a second needle pulling linear module; 522. a second needle pulling connecting piece; 5221. a second pin pulling mounting plate; 5222. a second needle pulling pushing member; 522a and a second pulling needle connecting surface; 53. pulling the needle seat; 54. a limiting component; 541. a limiting seat; 542. an elastic limiting part; 5421. a limiting head; 5422. an elastic block; 542a, an unlocking bevel; 542b and a limiting surface; 543. an adjustment assembly; 5431. adjusting the mounting plate; 5432. an adjustment member; 544. matching with a limiting piece; 6. a needle threading module; 61. a needle threading base; 62. a needle threading linear module; 621. a slider; 622. a needle threading drive member; 6221. a gear transmission mechanism; 6222. a needle threading motor; 623. a connecting rod assembly; 6231. a first connecting rod; 6232. a second connecting rod; 63. a needle threading connector; 631. a needle threading mounting plate; 632. a needle threading pusher; 63a, a needle threading connecting surface; 7. an outer needle nozzle module; 71. a support head; 72. an outer needle member; 721. an outer needle cylinder; 7211. a first cylinder; 7212. a second cylinder; 7213. an outer needle cylinder bearing; 7214. a spacer bush; 7215. a first cover body; 7216. a second cover body; 721a, support holes; 721b, a fixed ring groove; 722. a thimble member; 7221. an outer needle body; 7222. an outer needle; 7223. an outer needle shaft shoulder; 7224. an outer needle handle; 7225. a position limiting sleeve; 723. an elastic abutting piece; 73. a transmission rod; 74. an outer needle fixing member; 75. pulling out the needle assembly; 751. pulling out the needle frame; 752. a pin pulling-out linear module; 753. an outer pull needle connecting piece; 7531. an outward pulling needle mounting plate; 7532. pulling out the needle connecting plate; 753a pulling out the needle connecting surface; 8. and (5) battery cores.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The embodiment of the application provides an automatic winding equipment of electric core, this automatic winding equipment of electric core pull out the first subassembly of pulling out in the needle module and the second pull out the subassembly and pull out the back with first needle spare and second needle spare successively, the first subassembly of pulling out drives first needle spare again and stretches out the back, it switches over to wearing needle module place station again to roll up the needle external member, it only needs to drive the second needle spare and stretches out to wear the needle module, the structure of wearing the needle module has been simplified, installation space has been saved. The winding equipment structure is loaded down with trivial details among the correlation technique, technical problem that occupation space is big is solved to this application.

Referring to fig. 1 and 2, an automatic battery cell winding apparatus includes a base 1, a station module 2, a needle pulling module 5, a needle threading module 6, a winding needle transmission module 4, an outer needle nozzle module 7, and a plurality of winding needle kits 3.

Referring to fig. 1 and 2, the station module 2 includes a turntable 21 and a station changing module 22. The rotary table 21 is rotatably disposed on the base 1, and a rotation axis direction of the rotary table 21 is disposed along a first direction, which is a Y-axis direction in the drawing. The station changing assembly 22 is in driving connection with the turntable 21 and drives the turntable 21 to rotate so as to switch stations.

Referring to fig. 1 and 2, the length directions of the plurality of needle rolling sets 3 are all arranged along the first direction, the plurality of needle rolling sets 3 are all arranged in the first direction in a penetrating manner on the rotating disc 21, and the plurality of needle rolling sets 3 are uniformly distributed circumferentially by taking the rotating axis of the rotating disc 21 as the axis. In this embodiment, the three needle winding kits 3 are respectively located at the winding station, the rubberizing station and the blanking station, and the station changing module 22 drives the turntable 21 to rotate, so as to drive the needle winding kits 3 to be sequentially switched to the winding station, the rubberizing station and the blanking station, and sequentially circulate among the three stations. In other embodiments, the number of the winding needle assemblies 3 may be set corresponding to the number of the stations according to the different number of the stations.

Referring to fig. 1 and 2, the changing station assembly 22 includes a driving gear 221, a driven gear 222, a changing station driving member 223, and a balance gear 224. The driven gear 222 is fixed coaxially with the rotary table 21, and the driven gear 222 is connected with the rotary table 21 through a key. The driving gear 221 is rotatably disposed on the housing 1, and the rotation axis direction of the driving gear 221 is also disposed along the first direction, and the driving gear 221 is engaged with the driven gear 222. The station-changing driving member 223 is drivingly connected to the driving gear 221 to drive the driving gear 221 to rotate, and the driving gear 221 and the driven gear 222 cooperate to drive the turntable 21 to rotate to change the stations. In this embodiment, the station-changing driving member 223 includes a servo motor, the servo motor is fixed on the base 1 through a bolt, and the servo motor can drive the turntable 21 to rotate 120 degrees every time the servo motor operates, so as to change the station of the needle winding kit 3.

Referring to fig. 1 and 2, the balance gear 224 is rotatably coupled to the housing 1, and the rotation axis of the balance gear 224 is also disposed in the first direction. The balance gear 224 is engaged with the driven gear 222, wherein the driving gear 221 and the driven gear 222 are spaced apart from each other in a third direction, which is an X-axis direction in the drawing. Further, the balance gear 224 conforms to the shape of the drive gear 221. Therefore, when the driving gear 221 rotates the driven gear 222, the balance gear 224 rotates synchronously, thereby improving the stability of the rotation of the driven gear 222.

Referring to fig. 3 and 4, the needle winding kit 3 includes a first needle 31, a second needle 32, and a needle cylinder 33. Needle cylinder 33 is all worn to locate by first needle 31 and second needle 32, and second needle 32 slides along the first direction and sets up in first needle 31, and first needle 31 and second needle 32 can be at the relative motion of the first direction promptly, consequently when extracting the electric core 8 after will rolling up needle external member 3 from coiling, can extract second needle 32 and first needle 31 from electric core 8 in proper order, and avoid causing the damage to the diaphragm and the pole piece of electric core 8, conveniently pull out the needle operation.

Referring to fig. 3 and 4, the first needle 31 includes a first needle body 311, a first needle grip 312, and a first needle 313. The first needle handle 312 and the first needle 313 are connected to two ends of the first needle 311 respectively, wherein the first needle handle 312 is sleeved on the end of the first needle 311 and can be connected by a bolt or a key, and in other embodiments, the first needle handle 312 can also be integrally formed with the first needle 311. Wherein, first needle handle 312 is cyclic annular setting, is located the outside of syringe 33, and the cross sectional area of first needle handle 312 is greater than the cross sectional area of first needle body 311, and it can be understood that first needle handle 312 is flange form setting at the tip of first needle body 311 to make things convenient for the follow-up to move and drive whole first needle 31 motion through first needle handle 312.

Referring to fig. 3 and 4, the first needle 313 and the first needle 311 are arranged in a first direction along a length direction thereof, and the first needle 313 is fixed to an end of the first needle 311 by a bolt.

The first needle 313 may extend from the barrel 33 for winding of the membrane and the pole piece.

Referring to fig. 3 and 4, the second needle 32 includes a second needle body 321, a second needle handle 322, and a second needle tip 323. The second needle handle 322 and the second needle 323 are respectively connected to two ends of the second needle body 321, wherein the second needle handle 322 is sleeved on an end of the second needle body 321 and can be connected by a bolt or a key, and in other embodiments, the second needle handle 322 and the second needle body 321 can be integrally formed. Wherein, the second needle handle 322 is disposed annularly and located outside the syringe 33, and the first needle handle 312 and the second needle handle 322 are disposed at an interval in the first direction. The cross-sectional area of the second needle handle 322 is larger than that of the second needle body 321, and it can be understood that the second needle handle 322 is disposed at the end of the second needle body 321 in a flange shape to facilitate the subsequent movement of the second needle handle 322 to drive the whole second needle 32 to move.

Referring to fig. 3 and 4, the second needle 323 and the second needle 321 are arranged in the first direction in the longitudinal direction, and the second needle 323 is fixed to the end of the second needle 321 by a bolt.

A second needle 323 can extend from the barrel 33 to allow the diaphragm and pole piece to be wound.

Referring to fig. 4, 5 and 6, the needle winding kit 3 further includes a limiting structure 34, and the limiting structure 34 includes a limiting groove 342, a limiting block 341 and a key groove 343. The second needle body 321 is disposed through the first needle body 311, and it can be understood that the first needle body 311 is disposed through the syringe 33, and the second needle body 321 is disposed through the first needle body 311. The length of the limiting groove 342 is arranged along the first direction and is opened on the side wall of the first needle body 311; the limiting block 341 is fixed to the second needle body 321 by a bolt or a pin, and the limiting block 341 is slidably disposed in the limiting groove 342. When the first needle body 311 and the second needle body 321 relatively move in the first direction, the limit block 341 slides in the limit groove 342. In addition, under the cooperation of the limiting groove 342 and the limiting block 341, the first needle body 311 and the second needle body 321 cannot rotate relatively, so that the first needle member 31 and the second needle member 32 cannot rotate relatively, that is, when the winding needle transmission module 4 drives the winding needle kit 3 to move, the first needle member 31 and the second needle member 32 can rotate synchronously to process the electric core 8.

Referring to fig. 4, 5 and 6, further, the limiting groove 342 is disposed to penetrate, and the limiting block 341 penetrates to the outside of the first needle body 311 through the limiting groove 342. The length direction of the key groove 343 is arranged along the first direction and is opened on the inner wall of the syringe 33, and the stopper 341 passes through the first needle body 311 and is slidably arranged on the key groove 343. Therefore, by the engagement of the stopper 341 with the key groove 343 and the stopper groove 342, the first needle 311, the second needle 321, and the syringe 33 are not easily rotated relative to each other, and the relative movement of the first needle 311, the second needle 321, and the syringe 33 in the first direction can be maintained. The limiting block 341 can limit the relative rotation between the second needle body 321 and the first needle body 311, and can also limit the relative rotation between the second needle body 321 and the syringe 33, and it is not necessary to provide other limiting members to limit the relative rotation between the second needle body 321 and the syringe 33 or between the first needle body 311 and the syringe 33, so as to simplify the structure of the needle winding kit 3.

Referring to fig. 1, 2, 7 and 8, the self-rotation force of the needle winding kit 3 comes from the needle winding transmission module 4. The winding needle transmission module 4 includes a plurality of transmission sleeves 41, a plurality of gear sets 42 and a plurality of winding drive assemblies 43. The number of the transmission sleeve 41, the gear set 42 and the winding driving assembly 43 is corresponding to the number of the needle winding sets 3. In this embodiment, the number of the driving sleeve 41, the gear train 42 and the winding drive assembly 43 is 3.

Referring to fig. 8, the plurality of transmission sleeves 41 are sequentially sleeved from inside to outside, and the end portions of the transmission sleeves 41 are not shielded by other transmission sleeves 41, it can be understood that the length of the transmission sleeve 41 on the outer layer is shorter for two adjacent transmission sleeves 41, and the transmission sleeve 41 on the inner layer is longer and two ends of the transmission sleeve 41 on the inner layer extend out from two ends of the transmission sleeve 41 on the outer layer respectively.

Referring to fig. 8 to 10, the driving sleeves 41 are connected by bearings to maintain the rotation between the driving sleeves 41 unaffected, and the driving sleeve 41 at the outermost layer is rotatably connected to the frame 1, and the axes of the driving sleeve 41 and the turntable 21 are arranged in a collinear manner. The gear set 42 includes two gears engaged with each other, and the two gears of the gear set 42 are respectively connected to the needle winding assembly 3 and the transmission sleeve 41, and specifically, the two gears of the gear set 42 are respectively fixedly sleeved on the end of the transmission sleeve 41 and the needle cylinder 33, so that the transmission sleeve 41 and the needle winding assembly 3 can be in transmission connection through gear transmission. In addition, even if the winding needle assembly 3 is rotated with the rotary disc 21 to switch the working positions, the transmission sleeve 41 is still in transmission connection with the winding needle assembly 3 because the axes of the transmission sleeve 41 and the rotary disc 21 are arranged in a collinear manner.

Referring to fig. 8-10, the winding pin driving assembly includes a belt 433 assembly or a chain drive assembly, and in this embodiment, the winding pin driving assembly includes a belt 433 assembly including a driving pulley 431, a driven pulley 432, a belt 433, and a winding driver 434. The fixed cover of driven pulley 432 is established at the tip of transmission shaft, and driving pulley 431 rotates and sets up in frame 1, and belt 433 overlaps establish with driving pulley 431 and driven pulley 432, and winding driving part 434 is fixed in frame 1 and is connected with driving pulley 431 drive, and winding driving part 434 includes servo motor. Drive the driving sleeve 41 through belt 433 assembly and rotate, because a plurality of transmission shafts are established with this cover, provide power for driving sleeve 41 through belt 433 assembly, conveniently put the power supply to one side of driving sleeve 41, and conveniently set up independent power supply for driving sleeve 41 of difference to the rational utilization space avoids producing and interferes.

In summary, it can be seen that after the needle winding driving assembly transmits power to the transmission sleeve 41, the transmission sleeve 41 transmits power to the needle winding kit 3 through the gear set 42, so as to drive the needle winding kit 3 to rotate. Wherein, the drive process of a plurality of book needle external member 3 all sets up independently, can not produce mutual interference to ensure to roll up needle external member 3 and all independently rotate at different stations.

Referring to fig. 1, 2 and 10, when the winding needle set 3 processes the battery cell 8 at each station, the battery cell 8 is wound on the winding needle set 3, and the end of the winding needle set 3 is supported by the outer needle nozzle module 7 to limit the deformation of the winding needle set 3 due to stress.

Referring to fig. 10 and 11, the outer nozzle module 7 includes a supporting head 71 and a plurality of outer needle members 72, the supporting head 71 is spaced from the turntable 21 in the first direction, and the supporting head 71 is coaxially fixed to the turntable 21 by a transmission rod 73 and can rotate together with the turntable 21. Both ends of the transmission rod 73 are fixed with the turntable 21 and the support head 71 respectively through bolts. The outer needle 72 includes an outer needle cylinder 721, a plurality of through holes for the outer needle 72 to pass through are opened on the supporting head 71, and the outer needle 72 passes through the supporting head 71 through the through holes and is fixed on the supporting head 71. In this embodiment, the number of the outer needle members 72 is equal to that of the needle winding kit 3, and three outer needle members are provided.

Referring to fig. 12 and 13, wherein the outer needle 72 comprises an outer barrel 721, the outer barrel 721 comprises a first barrel 7211, a second barrel 7212 and two outer barrel bearings 7213. The first cylinder 7211 is coaxially disposed through the second cylinder 7212, and the first cylinder 7211 and the second cylinder 7212 are connected by two outer cylinder bearings 7213. Wherein, the circumference outside an organic whole of first barrel 7211 is formed with the shaft shoulder, and two outer syringe bearings 7213 set up at first direction interval, and first barrel 7211 is all located to two outer syringe bearings 7213 covers to with first barrel 7211 interference fit, and the inner ring of two outer syringe bearings 7213 respectively with the relative both ends face butt of the shaft shoulder of first barrel 7211, also be interference fit between the lateral surface of two outer syringe bearings 7213 and the inner wall of second barrel 7212. Thus, the first barrel 7211 can rotate relative to the second barrel 7212 by rotationally coupling the first barrel 7211 to the second barrel 7212 using two outer syringe bearings 7213.

Referring to fig. 13, preferably, the outer barrel 721 further includes a spacer 7214, the spacer 7214 is sleeved on the first barrel 7211, and two end surfaces of the spacer 7214 are respectively abutted to the outer rings of the two outer barrel bearings 7213, so that the two outer barrel bearings 7213 are uniformly stressed and the stability of the relative rotation of the first barrel 7211 and the second barrel 7212 is maintained.

Referring to fig. 11, 13 and 17, the circumferential outer wall of the second cylinder 7212 is provided with a fixing ring groove 721b, the outer needle nozzle module 7 further includes a plurality of outer needle fixing members 74, in this embodiment, the number of the outer needle fixing members 74 is set to correspond to the number of the outer needle members 72, and the number of the outer needle fixing members 74 is 3. When the second cylinder 7212 is positioned in the through groove of the support head 71, the outer needle fixing element 74 is inserted into the fixing ring groove 721b from the sidewall of the support head 71, so as to limit the outer needle cylinder 721 from being separated from the support head 71, and facilitate fixing the outer needle cylinder 721 on the support head 71. In this embodiment, the outer needle mount 74 comprises a bolt or pin, preferably a bolt.

Referring to fig. 13 to 15, a supporting hole 721a is opened on a side surface of the first cylinder 7211 facing the turntable 21, and in the first direction, the supporting holes 721a of the first cylinders 7211 are respectively disposed opposite to the plurality of needle winding assemblies 3.

Referring to fig. 13 to 15, the first needle 313 of the first needle 31 and the second needle 323 of the second needle 32 of the needle winding assembly 3 both extend into the supporting hole 721a and are supported by the wall of the supporting hole 721 a. Therefore, when the battery cell 8 is placed on the first needle 313 and the second needle 323, both ends of the first needle 313 and the second needle 323 are supported, and deformation is not easy to occur.

Referring to fig. 13 to 15, further, the outer needle 72 further includes a needle jack 722, and the needle jack 722 is inserted into the first cylinder 7211 through the support hole 721 a. While the first and

second needles

313 and 323 are inserted in the support holes 721a, the needle 722 is inserted between the first and

second needles

313 and 323 to separate the first and

second needles

313 and 323 or to increase a gap between the first and

second needles

313 and 323. Since the first cylinder 7211 can rotate relative to the second cylinder 7212, at different stations, as the needle winding assembly 3 rotates, the needle 722 and the second cylinder 7212 rotate, and the portions of the first needle 313 and the second needle 323 located in the supporting hole 721a are not easily worn by relative movement with the needle 722 or the hole wall of the supporting hole 721 a.

Referring to fig. 13 to 15, at the blanking station, when the first needle 313 and the second needle 323 are pulled out from the battery cell 8, the thimble element 722 is firstly driven to be pulled out from between the first needle 313 and the second needle 323, the first needle 313 and the second needle 323 move close to each other, a certain gap can be left between the battery cell 8 and the first needle 313 and the second needle 323, the first needle 313 and the second needle 323 are conveniently pulled out from the battery cell 8, the friction force between the first needle 313 and the second needle 323 and the membrane is reduced, and the possibility of membrane deviation and damage during needle drawing is reduced.

Referring to fig. 13 to 15, further, a notch 3a is opened on one end surface of the first needle 313 and/or the second needle 323, in this embodiment, a notch 3a is opened on one end surface of both the first needle 313 and the second needle 323, and the notches 3a on the first needle 313 and the second needle 323 are communicated with each other. One end of the first needle 313 and the second needle 323 having the gap 3a extends to the supporting hole 721a, so that a thimble is conveniently inserted between the first needle 313 and the second needle 323, thereby separating the first needle 313 and the second needle 323.

Referring to fig. 13 to 15, among others, ejector pin 722 includes an outer needle body 7221, an outer needle 7222, an outer needle shoulder 7223, and an outer needle shank 7224, in which outer needle 7222, outer needle body 7221, and outer needle shoulder 7223 are integrally formed. The outer needle 7222 is located at one end of the outer needle 7221, and the outer needle 7222 is disposed in a cone shape to facilitate the insertion of the outer needle 7222 between the first needle 313 and the second needle 323. Outer needle handle 7224 is cyclic annular setting, and outer needle body 7221 is located to its cover, and can with outer needle body 7221 threaded connection, perhaps fixed with outer needle body 7221 through bolt or nut, outer needle handle 7224 is located the outside of outer syringe 721, and is located one side that outer needle handle 7224 deviates from carousel 21, and follow-up accessible pulling outer needle handle 7224 and drive whole thimble spare 722 and keep away from the motion of rolling up needle external member 3, and makes outer needle 7222 extract from first syringe 313 and second syringe 323.

Referring to fig. 13 to 15, the outer needle shoulder 7223 is fitted over a circumferential side surface of the outer needle body 7221, the outer needle 72 further includes an elastic fastening member 723, the elastic fastening member 723 is fitted over the outer needle body 7221, and two ends of the elastic fastening member 723 are connected to the outer needle body 7221 and the outer needle barrel 721, respectively. In this embodiment, the outer barrel 721 further includes a first lid 7215, the first lid 7215 and the end face of the first barrel 7211 that deviates from the turntable 21 are fixed by bolts, the outer needle 7221 is inserted into the first lid 7215, and the outer needle shoulder 7223 cannot penetrate out of the first barrel 7211 from the first lid 7215 because the cross-sectional area of the outer needle shoulder 7223 is greater than the cross-sectional area of the outer needle 7221. Both ends of the elastic tightening member 723 respectively tighten against the outer needle shoulder 7223 and the first cover 7215, and the ejector pin 722 can be maintained in a state of being inserted between the first needle body 311 and the second needle body 321 under the action of the elastic tightening member 723. In this embodiment, the elastic urging member 723 comprises a spring.

Referring to fig. 13 to 15, a portion of the first cap 7215 is also abutted against an inner ring of the outer cylinder bearing 7213 to support and position the outer cylinder bearing 7213.

Referring to fig. 13 to 15, in addition, the needle assembly 722 can be removed from the first cylinder 7211 by detaching the first cap 7215, thereby facilitating replacement or maintenance of the needle assembly 722.

Referring to fig. 13 to 15, the outer barrel 721 further includes two second covers 7216, and the two second covers 7216 are fixed to both end surfaces of the second barrel 7212 by bolts. The first tube 7211 is disposed through the second cover 7216, in this embodiment, one end of the first tube 7211 is disposed through the second cover 7216 to support the winding needle assembly 3 to extend into the supporting hole 721a of the first tube 7211. The two second covers 7216 are respectively abutted against the outer ring of the outer cylinder bearing 7213, and are supported and limited by the outer cylinder bearing 7213. Wherein, by disassembling the first and

second covers

7215 and 7216, the outer syringe bearing 7213 can be exposed, such that the outer syringe bearing 7213, the spacer 7214, and the first cylinder 7211 can be disassembled in sequence, thereby facilitating the maintenance of the outer needle 72.

Referring to fig. 13 to 15, the needle raising element 722 further includes a stopper 7225, the stopper 7225 is sleeved on the outer needle 7221, the stopper 7225 can be connected to the first cap 7215 or the outer needle handle 7224, in this embodiment, the stopper 7225 is connected to the outer needle handle 7224, and the stopper 7225 abuts against the outer side of the first cap 7215. The outer diameter of the stop sleeve 7225 is smaller than the outer diameter of the outer needle handle 7224, and the stop sleeve 7225 keeps a distance between the outer needle handle 7224 and the outer needle barrel 721 so as to conveniently drive the outer needle handle 7224 to move away from the outer needle barrel 721.

Referring to fig. 11, 16 and 17, the outer nozzle module 7 further includes an outer pulling needle assembly 75, the outer pulling needle assembly 75 is located at the blanking station, and the outer pulling needle assembly 75 drives the outer needle 72 located at the blanking station to move away from the turntable 21, i.e. drives the thimble 722 to pull out from between the first needle 313 and the second needle 323.

Referring to fig. 11, 16 and 17, the outer puller pin assembly 75 includes an outer puller pin rack 751, an outer puller pin linear module 752 and an outer puller pin connector 753. The outer needle pulling frame 751 is connected with the machine base 1 through a bolt, the fixed end of the outer needle pulling linear module 752 is mounted on the outer needle pulling frame 751, the driving end of the outer needle pulling linear module 752 moves along a first direction and is suitable for being connected with an outer needle handle 7224 so as to drive the whole thimble element 722 to move away from the rotary table 21. The outer needle-pulling linear module 752 may include an air cylinder, a screw mechanism or a linear motor, and in this embodiment, the outer needle-pulling linear module 752 does not need to have a high precision, and is preferably an air cylinder, so as to save cost and simplify the mechanism.

Referring to fig. 11, 16 and 17, the outer-pull needle connecting piece 753 includes an outer-pull needle mounting plate 7531 and two outer-pull needle connecting plates 7532, the outer-pull needle mounting plate 7531 is connected with a driving end of the outer-pull needle linear module 752 through a bolt, the two outer-pull needle connecting plates 7532 are connected to the outer-pull needle mounting plate 7531 at intervals and are integrally formed with the outer-pull needle mounting plate 7531, the two outer-pull needle connecting plates 7532 are arranged in an L shape, bending directions of the two outer-pull needle connecting plates 7532 face each other, and the side face, facing the outer-pull needle mounting plate 7531, of the outer-pull needle connecting plates 753 is an outer-pull needle connecting face 753a.

Referring to fig. 1 to 17, after the outer needle 72 rotates to the blanking station along with the support head 71, the outer needle handle 7224 of the ejector 722 moves to a position between two outer needle-pulling connection plates 7532, the outer needle-pulling linear module 752 drives the outer needle-pulling connection plates 7532 to move away from the outer needle cylinder 721, the outer needle-pulling connection surfaces 753a of the outer needle-pulling connection plates 7532 contact the outer needle handle 7224 towards the side surface of the outer needle cylinder 721, and the outer needle handle 7224 is pushed to drive the ejector 722 to pull out from the first needle 313 and the second needle 323.

Referring to fig. 1, 2 and 18, the needle extracting module 5 is located at the blanking station, and the first needle 31 and the second needle 32 slide in the first direction under the driving of the needle extracting module 5. The needle drawing module 5 includes a first needle drawing assembly 51 and a second needle drawing assembly 52. The first needle withdrawing assembly 51 can drive the first needle 31 to reciprocate in the first direction, that is, the first needle withdrawing assembly 51 can drive the first needle 31 to perform needle threading and needle withdrawing operations. When the driving end of the second needle pulling assembly 52 moves away from the rotating disc 21, the second needle 32 can be driven to move, that is, the second needle pulling assembly 52 can drive the second needle 32 to perform needle pulling operation. The needle pulling operation here is to drive the first needle 31 or the second needle 32 to move away from the outer needle mouth module 7, so that the first needle 31 or the second needle 32 is pulled out of the electrical core 8; the needle threading operation is to drive the first needle 31 or the second needle 32 to move towards the outer needle mouth module 7, and extend the first needle 31 or the second needle 32 to wind the diaphragm and the pole piece.

Referring to fig. 1, fig. 2 and fig. 18, when the needle winding kit 3 is disposed at the blanking station, the needle pushing component 722 is driven by the needle pulling straight line module 752 of the outer needle nozzle module 7 to pull out the needle from between the first needle 313 and the second needle 323, then the first needle component 31 is driven by the first needle pulling component 51 to pull out the needle, then the second needle component 52 drives the second needle component 32 to pull out the needle, i.e. the electric core 8 is taken away, the first needle component 51 drives the first needle component 31 to penetrate the needle to extend the first needle component 31, and the needle winding kit 3 in the extending state of the first needle component 31 rotates along with the turntable 21 to be switched to the winding station, i.e. the diaphragm can be directly conveyed to the first needle component 31, and the winding feeding efficiency is improved.

Referring to fig. 18 and 19, the needle extracting module 5 includes a needle extracting base 53, and the needle extracting base 53 is fixed on the machine base 1 by bolts. The first needle pulling module 5 comprises a first needle pulling linear module 511 and a first needle pulling connecting piece 512, wherein the fixed end of the first needle pulling linear module 511 is connected with the needle pulling base 53, the driving end of the first needle pulling linear module 511 moves along a first direction and is connected with the first needle pulling connecting piece 512, and therefore the first needle pulling connecting piece 512 can move in the first direction. The first needle pulling linear module 511 comprises a screw mechanism, a linear motor or an air cylinder, and in this embodiment, the first needle pulling linear module 511 comprises a screw mechanism.

Referring to fig. 2, 18 and 19, the first pin pulling connector 512 includes a first pin pulling mounting plate 5121 and two first pin pulling pushing members 5122, and the first pin pulling mounting plate 5121 is slidably disposed on the pin pulling base 53 along the first direction and connected to the driving end of the first pin pulling linear module 511. Further, in order to make the first needle pulling mounting plate 5121 slide more stably, the first needle pulling mounting plate 5121 is connected with the needle pulling base 53 in a sliding manner through the guide rail set. Two first needle pulling pushing pieces 5122 are both fixed on the side surface of the first needle pulling mounting plate 5121, the two first needle pulling pushing pieces 5122 are arranged at intervals, and the side surfaces, facing each other, of the two first needle pulling pushing pieces 5122 are both first needle pulling connecting surfaces 512a. In this embodiment, the first pin pulling pushing element 5122 includes two shifting forks, and the two shifting forks are both facing to each other to form a first pin pulling connecting surface 512a. In other embodiments, the first needle-extracting pushing member 5122 may also be a wheel-shaped member, and the wheel-shaped member is rotatably connected to the first needle-extracting mounting plate 5121, and at this time, the circumferential side surface of the wheel-shaped member is the first needle-extracting connecting surface 512a.

Referring to fig. 2, 18 and 19, when the needle winding kit 3 is at the blanking station, the first needle handle 312 is located between two first needle pulling pushers 5122, and when the needle pulling operation is performed, the first needle pulling pushers 5122 slide away from the turntable 21, and the first needle pulling connection surface 512a of the first needle pulling pushers 5122 contacts with the side surface of the first needle handle 312 facing the turntable 21 and drives the first needle 31 to perform the needle pulling operation; during needle threading operation, the first needle pulling pushing member 5122 slides close to the rotary table 21, and the first needle pulling connecting surface 512a of the first needle pulling pushing member 5122 contacts with the side surface of the first needle handle 312 departing from the rotary table 21, and drives the first needle 31 to perform needle threading operation.

Referring to fig. 2, 18 and 19, the second needle extracting assembly 52 includes a second needle extracting linear module 521 and a second needle extracting connector 522, a fixed end of the second needle extracting linear module 521 is connected to the needle extracting base 53, and a driving end of the second needle extracting linear module 521 moves along the first direction and is connected to the second needle extracting connector 522, so that the second needle extracting connector 522 can move in the first direction. The second needle pulling linear module 521 includes a screw mechanism, a linear motor or an air cylinder, and in this embodiment, the second needle pulling linear module 521 includes a screw mechanism.

Referring to fig. 2, 18 and 19, the second needle extracting connector 522 includes a second needle extracting mounting plate 5221 and a second needle extracting pushing member 5222, and the second needle extracting mounting plate 5221 is slidably disposed on the needle extracting base 53 along the first direction and connected to the driving end of the second needle extracting linear module 521. Further, in order to make the second needle extracting mounting plate 5221 slide more stably, the second needle extracting mounting plate 5221 is slidably connected with the needle extracting base 53 through a guide rail set. The second needle-pulling pushing member 5222 is connected to the second needle-pulling mounting plate 5221, and one side surface of the second needle-pulling pushing member 5222 is a second needle-pulling connection surface 522a. In this embodiment, the second needle pulling pushing member 5222 comprises a needle pulling wheel, the needle pulling wheel is rotatably connected to the second needle pulling mounting plate 5221, and the circumferential side surface of the needle pulling wheel is the second needle pulling connecting surface 522a. In other embodiments, the second needle extracting connecting member 522 may further include a second needle extracting block, and the side surface of the second needle extracting block is the second needle extracting connecting surface 522a.

Referring to fig. 2, 18 and 19, when the needle winding kit 3 is at the blanking station, after the first needle pulling assembly 51 drives the first needle 31 to pull out the needle, the second needle pulling assembly 52 drives the second needle 32 to pull out the needle. At this time, the second needle extracting pusher 5222 is located between the second needle handle 322 and the rotary disk 21, and the second needle extracting pusher 5222 slides away from the rotary disk 21 to make the second needle extracting connecting surface 522a contact with the side surface of the second needle handle 322 facing the rotary disk 21 and push the second needle 32 to move away from the rotary disk 21, so as to complete the needle extracting operation of the second needle 32.

It should be noted that, at the blanking station, after the needle pulling operation of the first needle 31 and the second needle 32 and the material taking operation of the battery cell 8 are completed, the first needle pulling assembly 51 drives the first needle 31 to penetrate through the needle, and meanwhile, the first needle pulling connecting piece 512 of the first needle pulling assembly 51 returns; the second needle extracting coupling 522 of the second needle extracting assembly 52 is returned. In the process of returning the second needle pulling member, the second needle pulling connecting member 522 is not in contact with the second needle member 32, so that the second needle member 32 is not driven to penetrate the needle. After the first needle pulling connector 512 and the second needle pulling connector 522 return, the rotary table 21 rotates to switch the work stations, the needle winding kit 3 at the rubberizing work station is switched to the blanking work station, and the first needle pulling assembly 51 and the second needle pulling assembly 52 perform needle pulling operation.

With such an arrangement, at the discharging station, the first needle pulling assembly 51 can drive the first needle 31 to pull out the needle and can drive the first needle 31 to penetrate the needle, and the second needle pulling assembly 52 only needs to drive the second needle 32 to pull out the needle, so that the structure of the second needle 32 is simplified. In addition, the first needle 31 is in the winding needle external member 3 of the stretching out state and switches to the winding station after, can directly deliver the diaphragm to first needle 31 department, and the winding station need not to set up the mechanism that drives first needle 31 and wear the needle again.

Referring to fig. 2, 18 and 19, the needle withdrawing module 5 further includes a limiting component 54, after the second needle withdrawing component 52 drives the second needle 32 to withdraw the needle, the limiting component 54 is used for limiting the second needle 32 to extend out, so as to avoid that the second needle 32 is driven to slide due to friction when the first needle withdrawing connector 512 or the second needle withdrawing connector 522 is returned.

Referring to fig. 2, 18 and 19, the limiting assembly 54 includes a limiting seat 541 and an elastic limiting member 542, the limiting seat 541 is connected to the needle extracting seat 53 through a bolt, and the elastic limiting member 542 is connected to the limiting seat 541. The elastic limiting member 542 includes a limiting head 5421 and an elastic block 5422, wherein the limiting head 5421 is provided with a mounting groove, the elastic block 5422 is connected in the mounting groove, and a portion of the elastic block 5422 extends out of the limiting groove 342 in the second direction and protrudes out of one side of the limiting head 5421. In this embodiment, the second direction is the Z-axis direction in the figure, and the elastic block 5422 preferably exceeds the top surface of the stopper 5421 in the vertical direction. In the connection manner of the elastic block 5422, in some embodiments, the bottom surface of the elastic block 5422 is fixed on the bottom surface of the mounting groove, when the portion of the elastic block 5422 extending out of the mounting groove is subjected to a downward pressure, the elastic block 5422 deforms, the portion of the elastic block 5422 extending out of the mounting groove gradually decreases, and even the elastic block 5422 completely retracts into the mounting groove, wherein the elastic block 5422 may include a rubber block. In this embodiment, the elastic block 5422 is rotatably connected in the mounting groove, and the bottom surface of the elastic block 5422 is connected to the bottom of the mounting groove by a spring, so that as the portion of the elastic block 5422 extending out of the mounting groove is pressed downwards, the elastic block 5422 can rotate, so that the portion of the elastic block 5422 extending out of the mounting groove is gradually reduced, and even the elastic block 5422 does not exceed the mounting groove in the second direction.

Referring to fig. 19 to 21, in the embodiment, when the elastic block 5422 does not receive the downward pressure, a portion of the elastic block 5422 beyond the mounting groove is a force-receiving portion, and a top surface of the force-receiving portion is an inclined surface of the unlocking inclined surface 542a. As the second needle pulling assembly 52 drives the second needle 32 to pull the needle, the second needle handle 322 moves close to the force receiving portion, and the second needle handle 322 gradually contacts with the unlocking inclined surface 542a, and as the second needle handle 322 continues to move, the second needle handle 322 slides on the unlocking inclined surface 542a to press down the force receiving portion, so that the elastic block 5422 does not limit the needle pulling operation of the second needle 32 during the needle pulling operation of the second needle 32.

Referring to fig. 19 to 21, the force-bearing portion further includes a limiting surface 542b, when the second needle-pulling assembly 52 drives the second needle element 32 to complete the needle-pulling operation, the second needle handle 322 passes over the force-bearing portion in the first direction and is no longer in contact with the unlocking slant 542a, and the force-bearing portion returns to the original position without being pressed down. The limit surface 542b of the force-bearing part is contacted with the side surface of the second needle handle 322 facing the rotary disc 21, so as to limit the extension of the second needle 32. Therefore, due to the elastic stoppers 542, the second needle 32 will not extend due to external force such as friction force along with the retraction of the first and

second needle assemblies

51 and 52.

Referring to fig. 18 to 21, further, the limiting assembly 54 further includes an adjusting assembly 543, and the adjusting assembly 543 includes an adjusting mounting plate 5431 and an adjusting piece 5432. The elastic limiting member 542 is connected to the adjusting mounting plate 5431 by a bolt, in this embodiment, the limiting head 5421 is connected to the adjusting mounting plate 5431 by a bolt, and the adjusting mounting plate 5431 is slidably disposed on the limiting seat 541 in the second direction. The driving end of the adjusting element 5432 is slidably disposed along the second direction and connected to the adjusting mounting plate 5431, that is, the height of the elastic limiting element 542 can be adjusted by the adjusting element 5432, so as to ensure that the limiting surface 542b can contact with the side surface of the second needle shank 322 facing the rotary table 21.

In this embodiment, the adjusting part 5432 includes an adjusting bolt, a screw rod mechanism or a linear motor, preferably, the adjusting part 5432 includes an adjusting bolt, the adjusting bolt penetrates through the limiting seat 541 and is in threaded connection with the limiting seat 541 along the second direction, and one end of the adjusting bolt is rotatably connected with the adjusting mounting plate 5431, that is, the adjusting mounting plate 5431 and the elastic limiting member 542 are driven to move in the second direction by rotating the adjusting bolt.

Referring to fig. 18 and 19, further, the limiting component 54 further includes a fitting limiting member 544, and the fitting limiting member 544 is connected to the limiting seat 541. After the second needle pulling assembly 52 drives the second needle 32 to complete the needle pulling operation, in the first direction, the second needle handle 322 is located between the fit limiting member 544 and the elastic limiting member 542, and the fit limiting member 544 contacts with the second needle handle 322 to limit the excessive needle pulling of the second needle 32. The fit-limiting member 544 includes a limiting wheel rotatably connected to the limiting seat 541 or a limiting plate fixed to the limiting seat 541.

It should be noted that, at the blanking station, the first needle 31 is pulled and pierced by the first needle-pulling assembly 51, the second needle 32 is pulled by the second needle-pulling assembly 52, and the limit assembly 54 limits the second needle 32 from protruding in the first direction. Since the limiting component 54 only limits the second needle 32 in the first direction, when the work station is switched, the second needle 32 rotates along with the turntable 21, and the limiting component 54 does not limit the work station switching movement of the second needle 32.

Referring to fig. 1, 2, 22 and 23, the needle threading module 6 and the needle drawing module 5 are located at adjacent stations, and the needle threading module 6 is located at a winding station in the embodiment. After the needle winding kit 3 with the first needle 31 in the extending state is switched to the winding station, the membrane is fed, and then the needle threading module 6 drives the second needle 32 to extend, so as to clamp the membrane between the first needle 31 and the second needle 32. Due to the action of the positioning member 544, the second needle 32 is not pulled out excessively, so that the needle threading module 6 is convenient to drive the second needle 32 to thread the needle.

Referring to fig. 22 and 23, the needle threading module 6 includes a needle threading base 61, a needle threading linear module 62 and a needle threading connector 63. The needle threading seat 61 is fixed with the machine base 1 through a bolt, the needle threading connecting piece 63 is arranged on the needle threading seat 61 in a sliding mode along a first direction, and the driving end of the needle threading linear module 62 moves along the first direction and is connected with the needle threading connecting piece 63 so as to drive the needle threading connecting piece 63 to move in the first direction through the needle threading linear module 62. At the winding station, the needle threading linear module 62 drives the needle threading connecting piece 63 to move close to the rotary table 21, and the needle threading connecting piece 63 drives the second needle piece 32 to thread.

Referring to fig. 22 and 23, the needle threading connecting piece 63 includes a needle threading connecting surface 63a, the needle threading connecting surface 63a contacts with a side surface of the second needle handle 322 departing from the rotary table 21, and the needle threading connecting piece 63 moves close to the rotary table 21 to drive the second needle element 32 to thread. In this embodiment, the needle threading connector 63 includes a needle threading mounting plate 631 and a needle threading pushing member 632, the needle threading mounting plate 631 is slidably disposed on the needle threading base 61 along a first direction, and the needle threading mounting plate 631 is slidably connected to the needle threading base 61 through a guide rail set. The needle threading pushing member 632 is connected to the needle threading mounting plate 631, in this embodiment, the needle threading pushing member 632 includes a needle threading wheel, the needle threading wheel is rotatably connected to the needle threading mounting plate 631, at this time, the needle threading connecting surface 63a is a circumferential side surface of the needle threading wheel, and as the needle threading mounting plate 631 slides close to the turntable 21, the needle threading pushing member 632 can push the second needle 32 to thread a needle. In other embodiments, the needle threading pusher 632 may also include a needle threading pusher plate.

Referring to fig. 22 and 23, the needle threading linear module 62 includes an air cylinder, a screw mechanism, a linear motor or a slider-crank mechanism, and in the present embodiment, the needle threading linear module 62 includes a slider-crank mechanism. The crank slider mechanism comprises a sliding block 621, a needle threading driving member 622 and a connecting rod assembly 623, wherein the sliding block 621 is connected with the needle threading connecting member 63, and in the embodiment, the sliding block 621 is fixed with the needle threading mounting plate 631.

Referring to fig. 22 and 23, the link assembly 623 includes a first connecting rod 6231 and a second connecting rod 6232, and the first connecting rod 6231 and the second connecting rod 6232 are hinged. One end of the first connecting rod 6231 departing from the second connecting rod 6232 is hinged to the sliding block 621, and one end of the second connecting rod 6232 departing from the first connecting rod 6231 is connected to the driving end of the needle threading driving member 622 and is driven by the needle threading driving member 622 to rotate. Thus, under the action of the needle threading driving member 622, the link assembly 623 rotates to drive the sliding block 621 and the needle threading connecting member 63 to reciprocate in the first direction. When the needle threading connecting piece 63 moves close to the rotary table 21, the second needle piece 32 is driven to thread the needle, and when the needle threading connecting piece 63 moves away from the rotary table 21, the needle threading connecting piece 63 returns to wait for the next winding needle sleeve 3 to enter the winding station.

Referring to fig. 22 and 23, in the present embodiment, the needle threading driving member 622 includes a gear transmission mechanism 6221 and a needle threading motor 6222, and the needle threading motor 6222 is fixed to the needle threading base 61 by a bolt. The gear transmission mechanism 6221 includes two gears engaged with each other, and the gears of the gear transmission mechanism 6221 are rotatably connected to the needle penetrating base 61. The output end of the gear transmission mechanism 6221 is in transmission connection with the connecting rod assembly 623, and the input end of the gear transmission mechanism 6221 is connected with the output end of the needle threading motor 6222. The needle threading motor 6222 and the gear transmission mechanism 6221 can drive the connecting rod assembly 623 to move. In other embodiments, the needle threading drive 622 also includes a servo motor in direct driving connection with the linkage assembly 623.

The needle threading die set 6 is arranged to only perform needle threading operation on the second needle element 32 at the winding station, so that structural components at the winding station are reduced, and the whole winding equipment is simplified.

The working principle and the process of the automatic battery cell winding equipment are introduced as follows:

the station changing assembly 22 drives the rotary table 21 to rotate so as to drive the plurality of winding needle kits 3 to revolve, so that the winding needle kits 3 are sequentially switched among a winding station, a rubberizing station and a blanking station; the winding needle transmission module 4 drives the winding needle kits 3 to rotate respectively, so that the winding needle kits 3 can rotate to process the battery cell 8 no matter at any station. When the needle winding kit 3 is located at the blanking station, the ejector pin 722 in the outer needle nozzle module 7 is pulled out from the first needle 31 and the second needle 32, the needle pulling module 5 respectively drives the first needle 31 and the second needle 32 to be pulled out from the battery cell 8, and after the battery cell 8 is taken away, the needle pulling module 5 stretches out the first needle 31 again. Subsequently, the first needle 31 is the needle rolling kit 3 in the extending state and is switched to the feeding station along with the rotation of the rotary table 21, the membrane is firstly sent to the first needle 31, and then the needle threading module 6 drives the second needle 32 to penetrate out to clamp the membrane, so that the membrane can be wound. Subsequently, the wound battery core 8 is switched to a rubberizing station along with the winding needle kit 3, and the battery core 8 is rubberized at the rubberizing station. After the rubberizing is completed, the battery cell 8 is switched to a blanking station along with the winding needle suite 3. Wherein, coiling, rubberizing and unloading are carried out in succession, have improved the efficiency of electric core 8 coiling processing.

The embodiment of the application provides an automatic battery cell winding device, a plurality of winding needle kits 3 penetrate through a turntable 21, a station changing assembly 22 drives the turntable 21 to drive the plurality of winding needle kits 3 to circularly move on a plurality of stations, when a blanking station of a battery cell is provided, a first needle pulling assembly 51 and a second needle pulling assembly 52 in a needle pulling module 5 sequentially drive a first needle 31 and a second needle 32 to move and pull out from the battery cell 8, after the needle pulling of the first needle 31 and the second needle 32 is finished and the wound and formed battery cell 8 is taken away, the first needle pulling assembly 51 can immediately drive the first needle 31 to stretch out, the winding needle kit 3 stretching out of the first needle 31 is switched to the next station along with the rotation of the turntable 21, the winding needle kit 3 is arranged at the station where the needle penetrating module 6 is located, a diaphragm can be conveyed to the first needle 31, and then the needle penetrating module 6 drives the second needle 32 to stretch out, so as to clamp the diaphragm. Under the action of the needle pulling module 5, the needle threading module 6 only needs to drive the second needle piece 32 to complete needle threading movement, so that the structure of the winding equipment at the station is simplified, and the installation space is saved.

In the description of the present application, it is to be understood that the forward direction of "X" in the drawings represents the right direction, and correspondingly, the reverse direction of "X" represents the left direction; the forward direction of "Y" represents forward, and correspondingly, the reverse direction of "Y" represents rearward; the forward direction of "Z" represents the upward direction, and correspondingly, the reverse direction of "Z" represents the downward direction, and the directions or positional relationships indicated by the terms "X", "Y", "Z", etc. are based on the directions or positional relationships shown in the drawings of the specification, and are only for convenience of describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular direction, be constructed and operated in a particular direction, and thus should not be construed as limiting the present application. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic winding equipment of electricity core, its characterized in that, it includes:

the needle pulling module comprises a first needle pulling assembly and a second needle pulling assembly, the driving end of the first needle pulling assembly is suitable for driving the first needle to reciprocate in the first direction, the driving end of the second needle pulling assembly moves in the first direction, and the driving end of the second needle pulling assembly is suitable for driving the second needle to move when moving away from the turntable;

and the needle threading module and the needle pulling module are respectively positioned at two adjacent stations, the driving end of the needle threading module moves in the first direction, and the driving end of the needle threading module is suitable for driving the second needle piece to move when moving close to the turntable.

2. The automatic cell winding apparatus of claim 1, wherein the first puller assembly comprises:

the first needle connecting piece of pulling out, first needle includes first needle handle, first needle connecting piece of pulling out with the first drive end of pulling out needle straight line module is connected, first needle connecting piece of pulling out includes two first needle connection faces of pulling out, two first needle connection face of pulling out is suitable for respectively with first needle handle orientation with deviate from the side contact of carousel.

3. The automatic battery core winding device according to claim 1, wherein the second needle pulling module comprises:

the second needle pulling connecting piece comprises a second needle handle, the second needle pulling connecting piece is connected with the driving end of the second needle pulling linear module, the second needle pulling connecting piece comprises a second needle pulling connecting face, and the second needle pulling connecting face is suitable for being in contact with the side face of the rotary table, facing the second needle handle.

4. The automatic battery core winding device of claim 3, wherein the needle pulling module further comprises a limiting assembly, which comprises:

5. The automatic battery cell winding apparatus of claim 4, wherein the limiting assembly further comprises an adjusting assembly, which comprises:

the elastic limiting piece is connected to the adjusting mounting plate;

6. The automatic battery cell winding device of claim 3, wherein the needle threading module comprises:

a needle seat is penetrated;

7. The automatic battery core winding device according to claim 6, wherein the needle threading linear module comprises a slider-crank mechanism, which comprises:

a needle threading drive member;

8. The automatic battery core winding device according to claim 1, wherein the winding needle kit further comprises a limiting structure, which comprises:

the limiting block is connected with the second needle body;

9. The automatic battery cell winding device of claim 1, further comprising a winding pin transmission module, which includes:

the transmission sleeves are sequentially sleeved;

the plurality of gear sets are respectively in transmission connection with the plurality of needle winding kits through the gear sets;

10. The automatic battery cell winding device of claim 1, further comprising an outer needle nozzle module, which includes:

the outer needle piece is arranged on the support head in a penetrating mode and comprises an outer needle cylinder, support holes are formed in the outer needle cylinder, and the support holes are arranged opposite to the plurality of winding needle kits in the first direction respectively.

11. The automatic battery cell winding device of claim 10, wherein the outer needle further comprises a thimble member, the thimble member is disposed through the outer cylinder via the support hole, the first needle comprises a first needle, the second needle comprises a second needle, and the thimble member is adapted to be inserted between the first needle and the second needle.

12. The automatic battery cell winding device of claim 11, wherein one end surface of the first needle and/or the second needle is provided with a notch.

13. The automatic battery cell winding device of claim 11, wherein the outer needle further comprises an elastic abutting member, and two ends of the elastic abutting member are respectively connected with the top needle member and the outer needle cylinder.

14. The automatic battery cell winding equipment according to any one of claims 11 to 13, wherein the outer needle nozzle module further comprises an outer needle pulling assembly, the outer needle pulling assembly and the needle pulling module are located at the same station, and a driving end of the outer needle pulling assembly moves in a first direction and is adapted to be connected with the ejector needle.

15. The apparatus for automatically winding a battery cell according to claim 14, wherein the pull-out pin assembly comprises:

draw the needle connecting piece outward, draw the needle connecting piece outward with draw the drive end of needle straight line module outward and connect, draw the needle connecting piece outward including drawing the needle and connecting the face outward, thimble spare includes outer needle handle, draw the needle connection face outward be suitable for with outer needle handle orientation the side contact of carousel.

16. The automatic cell winding apparatus of claim 1, wherein the station changing assembly comprises:

the driven gear is coaxially fixed with the rotary disc;

a drive gear engaged with the driven gear;