CN219246762U - Rolling needle and winding device - Google Patents

Abstract

The utility model provides a winding needle and a winding device, wherein the winding needle comprises a winding needle main body, a winding needle shell, a reducing sliding block and an adjusting wheel driving assembly; the reducing sliding block is movably arranged on the periphery of the winding needle main body, the winding needle shell is connected with the reducing sliding block, and the reducing sliding block can slide along the radial direction of the winding main body so as to drive the winding needle shell to slide along the radial direction of the winding needle main body, and the reducing sliding block is provided with a driving inclined plane; the adjusting wheel driving assembly comprises a first adjusting wheel and an adjusting wheel driving piece, the first adjusting wheel is propped against the driving inclined plane, the first adjusting wheel is arranged on the winding main body, the adjusting wheel driving piece is located at one end of the winding main body, and the adjusting wheel driving piece can push the first adjusting wheel to slide along the axial direction of the winding main body, so that the first adjusting wheel can slide along the driving inclined plane to drive the reducing sliding block to slide along the radial direction of the winding needle main body. The utility model solves the problem that the outer circumference of the existing winding needle is difficult to adjust.

Description

Rolling needle and winding device

Technical Field

The utility model relates to the technical field of pole piece production equipment, in particular to a winding needle and a winding device.

Background

The battery core of the lithium battery consists of a diaphragm, a positive plate and a negative plate, and a winding needle of a winding machine is generally adopted to wind the winding material to form the battery core, and then subsequent processing is carried out. The winding needle is a core part of the winding procedure, and when in winding production, the thickness of the winding needle has tolerance due to different batches of winding materials, the outer circumference of the existing winding needle cannot be automatically adjusted generally, and the outer circumference of the winding needle is changed by manually attaching the teflon on the outer side of the winding needle. In addition, the external diameter of the battery cell gradually increases along with winding, if the external circumference of the winding needle cannot be adjusted, the alignment degree of the pole pieces is easy to be low, and the quality of the battery cell is affected.

Therefore, there is a great need for a winding needle and winding device with adjustable outer circumference to achieve adjustment of the running circumference of the winding needle.

Disclosure of Invention

The utility model aims to solve the problem that the outer circumference of the existing winding needle is difficult to adjust.

In order to solve the above problems, a first aspect of the present utility model provides a winding needle, including a winding needle body, a winding needle housing, a reducing slider and an adjusting wheel driving assembly;

the reducing sliding block is movably arranged on the periphery of the winding needle main body, the winding needle shell is connected with the reducing sliding block, the reducing sliding block can slide along the radial direction of the winding needle main body so as to drive the winding needle shell to slide along the radial direction of the winding needle main body, the reducing sliding block is provided with a driving inclined plane, and the driving inclined plane forms an included angle in the axial direction of the winding needle main body;

the adjusting wheel driving assembly comprises a first adjusting wheel and an adjusting wheel driving piece, the first adjusting wheel is propped against the driving inclined plane, the first adjusting wheel is arranged on the winding needle main body, the adjusting wheel driving piece is positioned at one end of the winding needle main body, and the adjusting wheel driving piece can push the first adjusting wheel to slide along the axial direction of the winding needle main body, so that the first adjusting wheel slides along the driving inclined plane to drive the reducing sliding block to slide along the radial direction of the winding needle main body.

Further, still include clamping slide and clamping piece, clamping slide movably sets up in the needle main part is rolled up, the clamping piece with clamping slide connects, just the clamping slide can be followed the radial direction of needle main part is rolled up in order to drive clamping piece centre gripping or release diaphragm, the clamping slide is equipped with the regulation inclined plane, the regulation inclined plane is in the axial direction of needle main part is rolled up and is an contained angle.

Further, the adjusting wheel driving assembly further comprises a second adjusting wheel, the second adjusting wheel is propped against the adjusting inclined surface, the second adjusting wheel is arranged on the winding needle body, the reducing sliding block can also drive the clamping sliding block to slide along the radial direction of the winding needle body when moving relative to the winding needle body, so that the clamping piece is used for clamping or releasing the diaphragm through the clamping sliding block, and when the clamping piece is used for clamping the diaphragm, the winding needle shell slides along the radial direction of the winding needle body and deviates from the rotating axis of the winding needle body, and when the clamping piece is used for releasing the diaphragm, the winding needle shell slides along the radial direction of the winding needle body and faces the rotating axis of the winding needle body.

Further, be provided with first guide post on the reducing slider, first guide post is followed the radial direction setting of needle main part is rolled up to the first guide post, the cover is equipped with first buffering elastic component on the first guide post, first buffering elastic component can produce and make the reducing slider drives the elasticity that the needle casing reset is rolled up.

Further, be provided with the second guide post on the centre gripping slider, the second guide post is followed the radial setting of needle main part is rolled up to the second guide post, the cover is equipped with the second buffering elastic component on the second guide post, the second buffering elastic component can produce and make the centre gripping slider drives the elasticity that the centre gripping spare kick-backed.

Further, the clamping slide block comprises a first clamping slide block and a second clamping slide block, the first clamping slide block and the second clamping slide block are symmetrically arranged along the rotation axis of the winding needle main body, an adjusting hole is formed in the first clamping slide block, and the clamping piece can slide along the radial direction of the winding needle main body relative to the first clamping slide block.

Further, the device also comprises a reset elastic piece, wherein the reset elastic piece is arranged at one end of the winding needle main body, which is away from the adjusting wheel driving piece, the reset elastic piece is propped against the winding needle main body, and the reset elastic piece can generate elastic force which enables the reducing sliding block to drive the winding needle shell to move along the radial direction of the winding needle main body towards the rotating axis of the winding needle main body, and drives the clamping piece to release the diaphragm.

A second aspect of the utility model provides a winding device comprising a winding needle according to the first aspect.

Further, the winding device is provided with a winding station and a blanking station, and the winding device further comprises a frame and a winding head;

the winding head is rotatably arranged on the frame around the axis of the winding head;

the winding head drives the winding needle to move between the winding station and the blanking station.

Further, the winding head also comprises two groups of inserting and pulling needle assemblies, wherein the two groups of inserting and pulling needle assemblies are arranged on the winding head and can rotate around the axis of the winding head under the driving of the winding head;

the inserting and pulling needle assemblies are arranged at the winding station, the inserting and pulling needle assemblies are arranged opposite to the winding needles at the winding station, and the inserting and pulling needle assemblies are positioned at one end, deviating from the adjusting wheel driving piece, of the winding needle main body of the winding needle;

the other group of the inserting and pulling needle assemblies are arranged at the blanking station, the inserting and pulling needle assemblies are arranged opposite to the winding needle at the winding station, and the inserting and pulling needle assemblies are positioned at one end, deviating from the adjusting wheel driving piece, of the winding needle main body of the winding needle.

According to the winding needle, the winding needle shell can be driven to slide along the radial direction of the winding needle main body through the reducing assembly and the adjusting wheel driving assembly, so that the distance between the winding needle shell and the rotating axis of the winding needle main body is adjusted, the outer circumference of the winding needle is further changed, and the winding needle can realize the functions of adjusting the alignment degree of pole piece lugs on the battery cell and the size of the battery cell through adjusting the outer circumference.

According to the winding device, the inserting needle component can rotate along with the winding head, so that the inserting needle component can follow a winding needle replacement station, the relative positions of the inserting needle component and a winding needle corresponding to the inserting needle component are unchanged, the inserting needle component can realize the inserting needle function at the winding station, the inserting needle component can realize the inserting needle function at a discharging station, the winding device can adjust the inserting needle position of the winding needle in the winding process and keep the inserting needle position, and the outer circumference of the winding needle is adjusted by adjusting the relative positions of the wheel driving piece and the winding needle main body; the winding device can realize the adjustment of the outer circumference of the winding needle in the winding process, the adjustment process is simple, the adjustment precision is high, and the winding device does not need an additional winding needle outer circumference adjustment device, so that the cost of equipment is reduced, and the plug needle assembly is arranged on the winding head, so that the space volume of the winding device is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of a needle housing with a needle hidden therein;

FIG. 2 is a schematic cross-sectional view of a winding needle according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of another cross-sectional structure of a winding needle according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a reducing slider and a clamping slider according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a winding needle housing with a winding needle hidden and removed according to an embodiment of the present utility model;

fig. 6 is a schematic perspective view of a winding needle housing with a winding needle hidden therein according to an embodiment of the present utility model;

fig. 7 is a schematic perspective view of a winding needle according to an embodiment of the present utility model;

fig. 8 is a schematic perspective view of a winding device according to an embodiment of the present utility model;

FIG. 9 is a schematic view of the structure of FIG. 8 from another perspective;

fig. 10 is a schematic side view of a winding device according to an embodiment of the present utility model.

Reference numerals illustrate:

10-a winding station; 20-a blanking station; 100-winding needle; 110-a needle body; 120-winding needle shell; 130-reducing slide block; 131-driving inclined plane; 131-a first guide post; 133-a first cushioning elastic member; 140-clamping the slide block; 141-adjusting the inclined plane; 142-a second guide post; 143-a second cushioning elastic member; 144-first clamping slide; 145-a second clamping slide; 150-clamping member; 160-a first adjustment wheel; 161-a second adjustment wheel; 162-an adjustment wheel drive; 170-a return spring; 180-mounting seats; 200-frames; 300-winding head; 400-adjusting the wheel drive; 500-a plug pin assembly; 600-reversing assembly; 1441-adjustment holes.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and thoroughly described below with reference to the accompanying drawings. In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of embodiments of the present application, the term "in some preferred embodiments" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one preferred embodiment or preferred example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same implementations or examples. 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 order to further explain the present utility model in detail, the present utility model will be further described with reference to specific examples.

Fig. 1 is a schematic structural diagram of a winding needle housing with a hidden winding needle according to an embodiment of the present utility model. Fig. 7 is a schematic perspective view of a winding needle according to an embodiment of the present utility model. In fig. 1, directions in which the forward direction and the reverse direction of the x-axis refer to axial directions, and directions in which the forward direction and the reverse direction of the y-axis refer to radial directions.

As shown in conjunction with fig. 1 to 7, a first aspect of the present embodiment provides a winding needle 100, the winding needle 100 including a winding needle body 110, a winding needle housing 120, a reducing slider 130, a clamping slider 140, a clamping member 150, and an adjusting wheel driving assembly, wherein:

the reducing slider 130 is movably arranged at the periphery of the winding needle main body 110, the winding needle shell 120 is connected with the reducing slider 130, the winding needle shell 120 is arranged on the reducing slider 130, the reducing slider 130 can slide along the radial direction of the winding needle main body 110, and therefore the distance between the winding shell 120 and the rotating axis of the winding needle main body 110 can be adjusted by driving the winding needle shell 120 to slide along the radial direction of the winding needle main body 110; the reducing slider 130 is provided with a driving inclined plane 131, and the driving inclined plane 131 is a driving inclined plane with an included angle in the axial direction of the winding needle main body 110;

the regulating wheel driving assembly comprises a first regulating wheel 160, a second regulating wheel 161, a regulating wheel driving piece 162 and a regulating wheel driving device (the winding device is shown), wherein the first regulating wheel 160 is arranged on the winding needle main body 110, the first regulating wheel 160 is abutted against the driving inclined surface 131, and the first regulating wheel 160 can move along the axial direction of the winding needle main body 110; the regulating wheel driving member 162 is provided outside the winding needle main body 110 coaxially with the winding needle main body 110 and disposed in spaced opposition to the end of the winding needle main body 110. The adjusting wheel driving piece 162 is connected with the adjusting wheel driving device, under the driving of the adjusting wheel driving device, the adjusting wheel driving piece 162 can slide along the axial direction of the winding needle main body 110 and props against the winding needle main body 110, so that the winding needle main body 110 drives the first adjusting wheel 160 to slide along the axial direction of the winding needle main body 110, meanwhile, the first adjusting wheel 160 slides along the driving inclined plane 131, and under the pressure of the first adjusting wheel 160, the reducing sliding block 130 is driven to slide along the radial direction of the winding needle main body 110, thereby achieving the purpose of changing the outer circumference of the winding needle 100, and the winding needle 100 can realize the functions of adjusting the alignment degree of pole piece lugs on the battery cell and the size of the battery cell by adjusting the outer circumference.

In this embodiment, the clamping slider 140 is movably disposed on the winding needle main body 110, the clamping member 150 is disposed inside the winding core main body 110, the clamping member 150 is connected with the clamping slider 140, and the clamping member 150 is mounted on the clamping slider 140, and the clamping slider 140 can slide along the radial direction of the winding needle main body 110, so that the distance between the clamping member 150 and the rotation axis of the winding needle main body 110 can be adjusted by driving the clamping member 150 to slide along the radial direction of the winding needle main body 110, so that the clamping member 150 clamps or releases the diaphragm; the clamping slider 140 is provided with an adjusting inclined plane 141, and the adjusting inclined plane 141 is an adjusting inclined plane forming an included angle in the axial direction of the winding needle main body 110. The second adjusting wheel 161 is abutted against the adjusting inclined plane 141, the second adjusting wheel 161 is arranged on the winding needle main body 110, and when the reducing slide block 130 moves relative to the winding needle main body 110, the clamping slide block 140 can be driven to slide along the radial direction of the winding needle main body 110, so that the clamping piece 150 is driven to clamp or release the diaphragm through the clamping slide block 140; and, while the clamping member 150 clamps the diaphragm, the needle housing 120 slides in the radial direction of the needle body 110 away from the rotational axis of the needle body 110, increasing the outer circumference of the needle 100, so as to adjust the outer circumference of the needle 100 while connecting the diaphragm to the needle 100; when the clip 150 releases the diaphragm, the winding needle housing 120 slides in the radial direction of the winding needle body 110 toward the rotational axis of the winding needle body 110, and the outer circumference of the winding needle 100 is reduced while releasing the diaphragm, so that the battery cell wound on the winding needle 100 is separated from the winding needle 100, thereby improving the speed of the winding needle 100 performing the needle drawing action.

In this embodiment, the drive ramp 131 is inclined from the end facing away from the adjustment wheel drive 162 to the end adjacent to the adjustment wheel drive 162, and the adjustment ramp 141 is inclined from the end adjacent to the adjustment wheel drive 162 to the end facing away from the adjustment wheel drive 162.

In this embodiment, the number of the winding needle housing 120, the reducing sliding blocks 130, the clamping sliding blocks 140 and the clamping pieces 150 is two, the two winding needle housings 120 are symmetrically arranged with the rotation axis of the winding needle body 110, the two reducing sliding blocks 130 are symmetrically arranged with the rotation axis of the winding needle body 110, the two clamping sliding blocks 140 are symmetrically arranged with the rotation axis of the winding needle body 110, the two clamping pieces 150 are symmetrically arranged with the rotation axis of the winding needle body 110, the winding needle body 110 can include two sliding rods, the two sliding rods are symmetrically arranged with the rotation axis of the winding needle body 110, one sliding rod, one winding needle housing 120, one reducing sliding block 130, one clamping sliding block 140 and one clamping piece 150 are a group and are mutually close, the adjusting wheel driving assembly drives the two sliding rods at the same time, and the sliding rods drive the corresponding winding needle housings 120 and the clamping pieces 150 to move. Of course, those skilled in the art can also adjust the number of the winding needle housing 120, the reducing slider 130, the clamping slider 140, the clamping member 150 and the sliding rod according to actual requirements.

On the basis of the above embodiment, as shown in fig. 3 and 4, the reducing slider 130 is provided with the first guide post 132, the first guide post 132 is disposed along the radial direction of the winding needle body 110, the first guide post 132 is sleeved with the first buffer elastic member 133, the first buffer elastic member 133 may use a spring, when the reducing slider 130 slides along the radial direction of the winding needle body 110 away from the rotation axis of the winding needle body 110, the first buffer elastic member 133 can generate an elastic force that makes the reducing slider 130 slide along the radial direction of the winding needle body 110 towards the rotation axis of the winding needle body 110, so that the reducing slider 130 can automatically reset, and the reducing slider 130 drives the winding needle housing 120 to automatically reset. Therefore, the first guide post 132 is arranged inside the reducing slide block 130, the first buffer elastic piece 133 is sleeved on the first guide post 132, the first guide post 132 can guide the movement direction of the first buffer elastic piece 133, and the first guide post 132 and the first buffer elastic piece 133 are arranged inside the reducing slide block 130, so that the stress of the reducing slide block 130 is more uniform, and the reducing slide block is more stable during resetting.

On the basis of the above embodiment, as shown in fig. 3 and 4, the second guide post 142 is disposed on the clamping slider 140, the second guide post 142 is disposed along the radial direction of the needle body 110, the second buffer elastic member 143 is sleeved on the second guide post 142, and the second buffer elastic member 143 may use a spring, when the clamping slider 140 clamps the diaphragm, the second buffer elastic member 143 can generate an elastic force that makes the clamping slider 140 slide along the radial direction of the needle body 110 away from the rotation axis of the needle body 110, so that the clamping slider 140 has a certain rebound space, thereby making the clamping member 150 have a certain rebound space, and avoiding the clamping member 150 from crushing the diaphragm. Therefore, the second guide post 142 is arranged inside the clamping slide block 140, the second buffering elastic piece 143 is sleeved on the second guide post 142, the second guide post 142 can guide the movement direction of the second buffering elastic piece 143, and the second guide post 142 and the second buffering elastic piece 143 are arranged inside the clamping slide block 140, so that the clamping slide block 140 is stressed more uniformly and is more stable in rebound.

On the basis of the above embodiment, as shown in fig. 5, the clamping slider 140 includes a first clamping slider 144 and a second clamping slider 145, where the first clamping slider 144 and the second clamping slider 145 are symmetrically disposed along the rotation axis of the winding needle main body 110, the first clamping slider 144 is provided with an adjusting hole 1441, the adjusting hole 1441 may be a U-shaped hole, an oval hole or a kidney-shaped hole, and the first clamping slider 144 and the corresponding clamping member 150 are connected through the adjusting hole 1441, so that the clamping member 150 may slide along the radial direction of the winding needle main body 110 relative to the first clamping slider 144, and when the clamping slider 140 clamps a diaphragm, the clamping member 150 may slide along the radial direction of the winding needle main body 110 under the driving of the second buffer elastic member 143, so that the clamping member 150 connected with the first clamping slider 144 has a certain rebound space, thereby avoiding crushing the diaphragm.

In this embodiment, the second clamping slider 145 is fixedly connected to its corresponding clamping member 150.

On the basis of the above embodiment, as shown in fig. 2, the winding needle 100 further includes a reset elastic member 170 and a mounting seat 180, the mounting seat 180 is disposed at one end far away from the adjusting wheel driving member 162, the winding needle main body 110 is mounted on the mounting seat 180, the reset elastic member 170 is located between the mounting seat 180 and the winding needle main body 110, and the reset elastic member 170 abuts against the winding needle main body 110, when the adjusting wheel driving member 162 drives the reducing slider 130 to axially move relative to the winding needle main body 110, the reset elastic member 170 is elastically deformed; the adjusting wheel driving device can also drive the adjusting wheel driving piece 162 to be far away from the winding needle main body 110, so as to drive the adjusting wheel driving piece 162 to release the reducing sliding block 130, the reducing sliding block 130 moves relative to the winding needle main body 110 under the elastic action of the resetting elastic piece 170, and drives the winding needle shell 120 to slide towards the rotating axis of the winding needle main body 110 along the radial direction of the winding needle main body 110, thereby realizing the resetting of the reducing sliding block 130, reducing the outer circumference of the winding needle 100, and simultaneously, enabling the clamping sliding block 140 to drive the clamping piece 150 to release the diaphragm. Therefore, when the reducing slider 130 is released, the outer circumference of the winding needle 100 is reduced and the diaphragm is released under the action of the reset elastic member 170, so that the winding needle 100 is reset, and the working efficiency of the winding needle 100 is improved.

As shown in fig. 8 to 10, the second aspect of the present embodiment provides a winding device, which includes the winding needle 100 shown in the first aspect, and the structure and the working principle of the winding needle 100 are the same as those of the winding needle 100 shown in the first aspect, which are not repeated here.

Specifically, the winding device has a winding station 10 and a blanking station 20, and comprises a frame 200, a winding head 300 and a winding needle 100, wherein the winding head 300 is rotatably mounted on the frame 200 around its own axis; the winding stations 10 and the blanking stations 20 are uniformly distributed along the circumferential direction of the winding head 300, the connecting lines of the winding stations 10 and the blanking stations 20 are approximately straight, the positions of the winding stations 10 and the blanking stations 20 are fixed relative to the frame 200, the winding stations 10 are located above the blanking stations 20 along the vertical direction, and the winding device can be matched with other devices on the battery cell winding machine better through relative position design between the winding stations, so that the winding efficiency of the battery cell can be effectively improved.

The number of the winding needles 100 is two, the two winding needles 100 are all installed on the winding head 300, the two winding needles 100 are uniformly distributed along the circumferential direction of the winding head 300, the winding head 300 drives the winding needles 100 to move between the winding station 10 and the blanking station 20, each winding needle 100 can rotate around the axis of the winding head 100 relative to the winding head 300, and each winding needle 100 can slide along the axial direction of the winding head 300 relative to the winding head 100, wherein the two winding needles 100 are the winding needles 100 shown in the first aspect.

In this embodiment, the frame 200 is further provided with an adjusting wheel driving device 400, and the adjusting wheel driving device 400 can drive the adjusting wheel driving member 162 to abut against the winding needle main body 110 of the winding needle 100 at the winding station 10, so as to drive the reducing slider 130 of the winding needle 100 to slide relative to the winding needle main body 110, thereby adjusting the outer circumference of the winding needle at the winding station 10. In addition, the adjusting wheel driving device 400 can also drive the adjusting wheel driving member 162 to abut against the winding needle main body 110 of the winding needle 100 at the blanking station 20, so as to drive the reducing slider 130 of the winding needle 100 to slide relative to the winding needle main body 110, thereby adjusting the outer circumference of the winding needle at the blanking station 20.

It should be noted that, in the present embodiment, the specific structure of the adjusting wheel driving device 400 is not further limited, and those skilled in the art may set the adjusting wheel driving device according to actual situations, for example: the adjusting wheel driving device 400 may be a conventional adjusting wheel driving assembly such as a servo motor, an air cylinder, a hydraulic cylinder, etc., and may be driven by a conventional mechanical transmission structure such as a screw rod, a chain, a rack, a synchronous wheel, a belt, etc., and the adjusting wheel driving device 400 may be matched with a push block, so that the push block pushes the adjusting wheel driving member 162 to abut against the winding needle body 110 of the winding needle 100 at the winding station 10.

In this embodiment, the winding device further includes two sets of insertion needle assemblies 500, the two sets of insertion needle assemblies 500 are disposed on the winding head 300, and the two sets of insertion needle assemblies 500 can rotate along with the winding head 300 around the axis of the winding head 300 under the driving of the winding head 300. The installation position of the inserting needle assembly 500 in the prior art is fixed, the inserting needle assembly 500 cannot rotate along with the winding head 300 in a circulating way along with the changing of the working position, while the two groups of inserting needle assemblies 500 in the winding device of the embodiment can rotate along with the winding head 300, so that the inserting needle assembly 500 can follow the changing of the working position of the winding needle 100, the relative positions of the inserting needle assembly 500 and the winding needle 100 corresponding to the inserting needle assembly are unchanged, the inserting needle assembly 500 can realize the inserting needle function in the winding working position 10, the inserting needle assembly 500 can realize the needle pulling function in the blanking working position 20, the winding device can adjust the inserting needle position of the winding needle 100 in the winding process and keep the inserting needle position, and the relative positions of the adjusting wheel driving member 162 and the winding needle body 110 (namely, the adjusting wheel driving member 162 is close to or far away from the winding needle body 110) are further used for realizing the purpose of adjusting the outer circumference of the winding needle 100. Compared with the prior art, the winding device of the embodiment can realize the adjustment of the outer circumference of the winding needle in the winding process, the adjustment process is simple, the adjustment precision is high, the winding device does not need an additional winding needle outer circumference adjustment device, the cost of equipment is reduced, and the arrangement of two groups of plug pin assemblies 500 on the winding head 300 is also beneficial to reducing the space volume of the winding device.

Specifically, the group of inserting needle assemblies 500 is disposed opposite to one winding needle 100, the inserting needle assemblies 500 are located at one end of the winding needle body 110 of the winding needle 100, which is away from the adjusting wheel driving member 162, and the inserting needle assemblies 500 can move between the winding station 10 and the blanking station 20 along with the winding needle 100, and the inserting needle assemblies 500 can realize an inserting needle function in the winding station 10 for pushing the winding needle 100 out to the front end of the winding head 300, so that the pole piece and the diaphragm pass through the winding needle 100, and the inserting needle assemblies 500 are also used for controlling the two winding shells 120 of the winding needle 100 to be closed so as to clamp the pole piece and the diaphragm.

The other group of inserting needle assemblies 500 is arranged opposite to the other winding needle 100, the inserting needle assemblies 500 are located at one end of the winding needle main body 110 of the winding needle 100, which is away from the adjusting wheel driving piece 162, the inserting needle assemblies 500 can move between the winding station 10 and the blanking station 20 along with the winding needle 100, the inserting needle assemblies 500 can realize a needle pulling function at the blanking station 20, the two winding shells 120 for the winding needle 100 are opened to release the pole piece and the diaphragm, and the inserting needle assemblies 500 are also used for pulling the winding needle 100 back from the front end of the winding head 300 to be matched with other devices to peel off the battery core on the winding needle 100 from the winding needle 100, so that the blanking treatment of the battery core on the winding needle 100 is completed.

It should be noted that, in this embodiment, the specific structure of the insertion needle assembly 500 is not further limited, so long as the above functions can be implemented, and those skilled in the art can set the structure according to actual situations, for example: the insertion needle assembly 500 can be driven to move by a servo motor, a cylinder, a hydraulic cylinder and other conventional adjusting wheel driving assemblies, and can be driven by a screw rod, a chain, a rack, a synchronous wheel, a belt and other conventional mechanical driving structures.

In this embodiment, the winding device further includes a reversing assembly 600, the reversing assembly 600 is disposed on the frame 200, and the reversing assembly 600 is used for driving the winding head 300 to rotate relative to the frame 200, so that the winding head 300 drives the two winding pins 100 thereon to rotate along the rotation direction, and each winding pin 100 moves between the winding station 10 and the blanking station 20, so as to switch the positions of the winding pins 100.

It should be noted that, in this embodiment, the specific structure of the steering assembly is not further limited, so long as the above functions can be implemented, and those skilled in the art may set the steering assembly according to actual situations, for example: the reversing assembly 600 can be a servo motor, a cylinder, a hydraulic cylinder and other conventional adjusting wheel driving assemblies to drive the reversing assembly to move, and can be driven by a driving wheel, a belt and other conventional mechanical driving structures.

The winding device in this embodiment may also be used in a three-station winding device, and a person skilled in the art may increase or decrease the stations of the winding device according to the actual situation, which is not further limited in this embodiment.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. The winding needle is characterized by comprising a winding needle main body, a winding needle shell, a reducing sliding block and an adjusting wheel driving assembly;

the reducing sliding block is movably arranged on the periphery of the winding needle main body, the winding needle shell is connected with the reducing sliding block, the reducing sliding block can slide along the radial direction of the winding needle main body so as to drive the winding needle shell to slide along the radial direction of the winding needle main body, the reducing sliding block is provided with a driving inclined plane, and the driving inclined plane forms an included angle in the axial direction of the winding needle main body;

the adjusting wheel driving assembly comprises a first adjusting wheel and an adjusting wheel driving piece, the first adjusting wheel is propped against the driving inclined plane, the first adjusting wheel is arranged on the winding needle main body, the adjusting wheel driving piece is positioned at one end of the winding needle main body, and the adjusting wheel driving piece can push the first adjusting wheel to slide along the axial direction of the winding needle main body, so that the first adjusting wheel slides along the driving inclined plane to drive the reducing sliding block to slide along the radial direction of the winding needle main body.

2. The winding needle according to claim 1, further comprising a clamping slider and a clamping member, wherein the clamping slider is movably disposed on the winding needle body, the clamping member is connected with the clamping slider, and the clamping slider can slide along a radial direction of the winding needle body so as to drive the clamping member to clamp or release the diaphragm, and the clamping slider is provided with an adjusting inclined plane, and the adjusting inclined plane forms an included angle in an axial direction of the winding needle body.

3. The winding needle according to claim 2, wherein the adjusting wheel driving assembly further comprises a second adjusting wheel, the second adjusting wheel is abutted against the adjusting inclined surface, the second adjusting wheel is arranged on the winding needle body, the reducing slider can drive the clamping slider to slide along the radial direction of the winding needle body when moving relative to the winding needle body so as to drive the clamping piece to clamp or release the diaphragm through the clamping slider, and when the clamping piece clamps the diaphragm, the winding needle shell slides along the radial direction of the winding needle body away from the rotating axis of the winding needle body, and when the clamping piece releases the diaphragm, the winding needle shell slides along the radial direction of the winding needle body towards the rotating axis of the winding needle body.

4. The winding needle according to claim 1, wherein the reducing slider is provided with a first guide post, the first guide post is arranged along the radial direction of the winding needle body, the first guide post is sleeved with a first buffering elastic piece, and the first buffering elastic piece can generate elastic force for enabling the reducing slider to drive the winding needle shell to reset.

5. The winding needle according to claim 2, wherein the clamping slider is provided with a second guide post, the second guide post is arranged along the radial direction of the winding needle main body, and a second buffering elastic piece is sleeved on the second guide post and can generate elastic force for enabling the clamping slider to drive the clamping piece to rebound.

6. The winding needle according to claim 5, wherein the clamping slider comprises a first clamping slider and a second clamping slider, the first clamping slider and the second clamping slider are symmetrically arranged along the rotation axis of the winding needle body, and the first clamping slider is provided with an adjusting hole, and the adjusting hole enables the clamping piece to slide along the radial direction of the winding needle body relative to the first clamping slider.

7. The winding needle according to claim 2, further comprising a reset elastic member disposed at an end of the winding needle body facing away from the adjusting wheel driving member, the reset elastic member being abutted against the winding needle body, the reset elastic member being capable of generating an elastic force that causes the reducing slider to drive the winding needle housing to move along a radial direction of the winding needle body toward a rotation axis of the winding needle body, and an elastic force that causes the clamping member to release the diaphragm.

8. A winding device comprising a winding needle according to any one of claims 1 to 7.

9. The winding device of claim 8, having a winding station and a blanking station, the winding device further comprising a frame and a winding head;

the winding head is rotatably arranged on the frame around the axis of the winding head;

the winding head drives the winding needle to move between the winding station and the blanking station.

10. The winding device according to claim 9, further comprising two groups of insertion and extraction needle assemblies, wherein both groups of insertion and extraction needle assemblies are arranged on the winding head, and both insertion and extraction needle assemblies can rotate around the axis of the winding head under the driving of the winding head;

the inserting and pulling needle assemblies are arranged at the winding station, the inserting and pulling needle assemblies are arranged opposite to the winding needles at the winding station, and the inserting and pulling needle assemblies are positioned at one end, deviating from the adjusting wheel driving piece, of the winding needle main body of the winding needle;

the other group of the inserting and pulling needle assemblies are arranged at the blanking station, the inserting and pulling needle assemblies are arranged opposite to the winding needle at the winding station, and the inserting and pulling needle assemblies are positioned at one end, deviating from the adjusting wheel driving piece, of the winding needle main body of the winding needle.

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