CN219892213U

CN219892213U - Winding needle mechanism and winding equipment

Info

Publication number: CN219892213U
Application number: CN202320618639.0U
Authority: CN
Inventors: 谭桂仁; 郭业祥
Original assignee: Shenzhen Chengjie Intelligent Equipment Co Ltd
Current assignee: Shenzhen Chengjie Intelligent Equipment Co Ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-10-24
Anticipated expiration: 2033-03-20

Abstract

The embodiment of the utility model discloses a winding needle mechanism and winding equipment, and relates to the field of battery cell preparation. The needle winding mechanism comprises a first needle winding mechanism, a second needle winding mechanism, an air bag assembly, an air supply piece, a mounting seat and a driving assembly, wherein the first needle winding mechanism and the second needle winding mechanism are oppositely arranged and form a clamping space. At least one of the first winding needle and the second winding needle is provided with an airbag module. The airbag module is provided with a telescopic space. The air supply piece is communicated with the telescopic space and is used for being communicated with an external air source so as to supply air to the telescopic space, so that the air bag assembly expands to the clamping space. The first winding needle and the second winding needle are movably connected to the mounting seat. The driving component is arranged on the mounting seat. The driving component is used for driving the first winding needle and the second winding needle to change the distance between the first winding needle and the second winding needle along the radial direction of the winding shaft of the winding needle mechanism. So through the drive of drive assembly to first needle and the second needle of rolling up, can change the electric core inner contour diameter that first needle and second were rolled up the needle and form, and then make the electric core that rolls up needle mechanism can compatible different internal diameter sizes and coil.

Description

Winding needle mechanism and winding equipment

Technical Field

The utility model relates to the field of battery cell preparation, in particular to a winding needle mechanism and winding equipment.

Background

Along with the development of batteries such as lithium batteries, the process precision requirements for preparing the battery cells by winding equipment are higher and higher. The winding device winds the diaphragm and the positive and negative plates through the winding needle mechanism to form the battery cell. The outer diameter of the clamping structure of the winding needle mechanism in the existing winding device is often used for limiting the inner contour of the battery cell besides clamping the diaphragm. The clamping structure of the existing winding needle mechanism is generally fixed in outer diameter, so that the winding needle mechanism can wind the battery cells, the inner outline size of the battery cells is single, and the battery cells cannot be wound with different inner diameter sizes.

Disclosure of Invention

Based on the above, it is necessary to provide a winding needle mechanism and a winding device, which aim to solve the technical problem that the existing winding device cannot be compatible with winding of electric cores with different inner diameters.

In order to solve the technical problems, the first technical scheme adopted by the utility model is as follows:

a needle winding mechanism comprising:

the first winding needle and the second winding needle are oppositely arranged to form a clamping space;

an air bag assembly, wherein at least one of the first winding needle and the second winding needle is provided with the air bag assembly, and the air bag assembly is provided with a telescopic space;

the air supply piece is communicated with the telescopic space and is used for being communicated with an external air source so as to supply air to the telescopic space, so that the air bag assembly expands towards the clamping space;

the first winding needle and the second winding needle are movably connected to the mounting seat; a kind of electronic device with high-pressure air-conditioning system

The driving assembly is arranged on the mounting seat and is used for driving the first winding needle and the second winding needle to change the distance between the first winding needle and the second winding needle along the radial direction of the winding shaft of the winding needle mechanism.

In some embodiments of the winding needle mechanism, the mounting base includes a housing, a first slider and a second slider, the first winding needle is slidably connected to the housing through the first slider, the second winding needle is slidably connected to the housing through the second slider, and the driving assembly is slidably driven by the first slider and the second slider relative to the housing to change the distance between the first winding needle and the second winding needle in a radial direction of a winding shaft of the winding needle mechanism.

In some embodiments of the winding needle mechanism, a first rolling member is rotatably connected to the first slider, a second rolling member opposite to the first rolling member is rotatably connected to the second slider, and the driving assembly includes a shaft rod, where the shaft rod can be inserted between the first rolling member and the second rolling member to change a distance between the first rolling member and the second rolling member, and further drive the first slider and the second slider to slide relative to the housing.

In some embodiments of the needle winding mechanism, the needle winding mechanism further comprises a guide member provided on the housing, and the shaft rod is inserted through the guide member and slidably connected with the guide member.

In some embodiments of the needle winding mechanism, the shaft comprises a sliding section and a triggering section, the radial dimension of the sliding section is larger than that of the triggering section, the sliding section is in sliding connection with the guide piece, and the triggering section is arranged on the sliding section and can penetrate between the first rolling piece and the second rolling piece.

In some embodiments of the needle winding mechanism, the drive assembly further comprises a trigger end and a first elastic member, the trigger end is disposed on the shaft, the first elastic member is disposed between the trigger end and the guide member, and the trigger end is capable of driving the shaft to slide relative to the guide member and compress the first elastic member to the guide member.

In order to solve the technical problems, the second technical scheme adopted by the utility model is as follows:

a winding apparatus comprising a plurality of winding pin mechanisms as described above.

In some embodiments of the winding apparatus, the winding apparatus includes a base, a first driving mechanism and a docking mechanism, the winding needle mechanism is rotatably connected with the base, the first driving mechanism is provided on the base, and the first driving mechanism can drive the winding needle mechanism to move relative to the base so as to dock with or separate from the docking mechanism.

In some embodiments of the winding device, the first winding needle is provided with a first plug-in portion, the second winding needle is provided with a second plug-in portion, the docking mechanism comprises a docking piece, and the first plug-in portion and the second plug-in portion can be plugged in the docking piece.

In some embodiments of the winding apparatus, the docking mechanism further comprises a frame, the docking member being rotatably connected to the frame.

The implementation of the embodiment of the utility model has the following beneficial effects:

the winding needle mechanism of the scheme is applied to winding equipment, and besides the winding equipment has excellent battery cell winding efficiency, the winding needle mechanism can change the outer diameter size of the clamping structure, so that the winding needle mechanism can be compatible with battery cell winding with different inner diameter sizes. Specifically, the needle winding mechanism comprises a first needle winding mechanism, a second needle winding mechanism, an air bag assembly, an air supply piece, a mounting seat and a driving assembly, wherein the first needle winding mechanism and the second needle winding mechanism are oppositely arranged and form a clamping space. Wherein at least one of the first winding needle and the second winding needle is provided with an airbag module. The airbag module is provided with a telescopic space. The air supply piece is used for being communicated with an external air source so as to supply air to the telescopic space, so that the air bag assembly expands to the clamping space to clamp the diaphragm, and the risk of damage to the clamping of the diaphragm is reduced. Further, the first winding needle and the second winding needle are movably connected to the mounting seat. The driving component is arranged on the mounting seat. The driving component is used for driving the first winding needle and the second winding needle to change the distance between the first winding needle and the second winding needle along the radial direction of the winding shaft of the winding needle mechanism. So through the drive of drive assembly to first needle and the second needle of rolling up, can change the electric core inner contour diameter that first needle and second were rolled up the needle and form, and then make the electric core that rolls up needle mechanism can compatible different internal diameter sizes and coil.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Wherein:

FIG. 1 is an axial view of a winding apparatus in one embodiment;

FIG. 2 is an enlarged schematic view of the portion A in FIG. 1;

FIG. 3 is an enlarged schematic view of the portion B in FIG. 1;

FIG. 4 is an enlarged schematic view of the portion C in FIG. 1;

FIG. 5 is an enlarged schematic view of the portion D in FIG. 1;

FIG. 6 is a top view of the winding apparatus of FIG. 1;

FIG. 7 is a sectional view taken along line E-E of FIG. 6;

FIG. 8 is an enlarged schematic view of the portion F in FIG. 7;

FIG. 9 is an axial view of the winding needle mechanism of the winding apparatus of FIG. 1;

FIG. 10 is an enlarged view of the portion G of FIG. 9;

FIG. 11 is a schematic view of a partial exploded view of the winding needle mechanism of the winding apparatus of FIG. 1;

FIG. 12 is an enlarged view of the H portion of FIG. 11;

FIG. 13 is a top view of a winding needle mechanism in the winding apparatus of FIG. 1;

FIG. 14 is a cross-sectional view taken in the direction I-I of FIG. 13;

FIG. 15 is an enlarged view of the K portion of FIG. 14;

FIG. 16 is an enlarged view of the L portion of FIG. 14;

fig. 17 is a sectional view taken along the direction G-G in fig. 13.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present utility model and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.

It should be noted that the features of the embodiments of the present utility model may be combined with each other without conflict.

The utility model provides a winding needle mechanism and winding equipment for solving the technical problems. In this embodiment, the winding device is used for preparing the battery cell; of course, in other embodiments of the present utility model, the winding apparatus can also be used for winding other materials, or other processing steps applied to other materials, and is not limited only herein.

Referring to fig. 1, fig. 2, fig. 6 and fig. 7, a winding apparatus according to the present utility model will be described. The winding apparatus includes a base 10 and a winding needle mechanism 20. The winding needle mechanism 20 is rotatably connected to the base 10.

Further, referring to fig. 9 to 11 and fig. 13 to 17, the winding needle mechanism 20 includes a first winding needle 21, a second winding needle 22, an air bag assembly, an air supply member 25, a mounting seat 26 and a driving assembly 27. Wherein the first winding needle 21 and the second winding needle 22 are disposed opposite to each other to form a clamping space 100. At least one of the first winding needle 21 and the second winding needle 22 is provided with an airbag module. The airbag module is provided with a telescoping space 300. The air supply member 25 communicates with the expansion space 300. The air supply member 25 is adapted to communicate with an external air source to supply air to the expansion space 300 so as to expand the airbag module toward the clamping space 100.

Further, referring to fig. 9 to 14, 16 and 17, the first winding needle 21 and the second winding needle 22 are movably connected to the mounting base 26. The drive assembly 27 is provided to the mount 26. The driving assembly 27 is used for driving the first winding needle 21 and the second winding needle 22 to change the distance between the first winding needle 21 and the second winding needle 22 along the radial direction of the winding shaft of the winding needle mechanism 20.

In summary, the implementation of the embodiment of the utility model has the following beneficial effects: the winding needle mechanism 20 of the above scheme is applied to winding equipment, and besides the winding equipment has excellent battery cell winding efficiency, the winding needle mechanism 20 can change the outer diameter size of the clamping structure, so that the winding needle mechanism 20 can be compatible with battery cell winding with different inner diameter sizes. Specifically, the needle winding mechanism 20 includes a first needle winding 21 and a second needle winding 22 that are disposed opposite to each other and form a holding space 100, an air bag module, an air supply member 25, a mount 26, and a drive module 27. Wherein at least one of the first winding needle 21 and the second winding needle 22 is provided with an airbag module. The airbag module is provided with a telescoping space 300. The air supply piece 25 is communicated with the telescopic space 300, and the air supply piece 25 is used for being communicated with an external air source so as to supply air to the telescopic space 300, so that the air bag assembly expands towards the clamping space to clamp the diaphragm, and the risk of damage to clamping of the diaphragm is reduced. Further, the first winding needle 21 and the second winding needle 22 are movably connected to the mounting seat 26. The drive assembly 27 is provided to the mount 26. The driving assembly 27 is used for driving the first winding needle 21 and the second winding needle 22 to change the distance between the first winding needle 21 and the second winding needle 22 along the radial direction of the winding shaft of the winding needle mechanism 20. Thus, the driving of the first winding needle 21 and the second winding needle 22 by the driving assembly 27 can change the inner contour diameters of the battery cells formed by the first winding needle 21 and the second winding needle 22, so that the winding needle mechanism 20 can be compatible with battery cell winding with different inner diameters. Further, by further inflating the expansion space 300, the air bag assembly can be further inflated, the clamping stability of the diaphragm can be ensured while the inner diameter of the battery cell is changed, and the winding effect of the battery cell is ensured.

In one embodiment, as shown in fig. 15 and 17, the airbag assembly includes an inflation plate 23 and an airbag 24. The air-filled panel 23 is provided with one or more through holes 200. At least one of the first winding needle 21 and the second winding needle 22 is provided with an inflation plate 23. The airbag 24 is disposed on the inflatable plate 23 and forms a telescopic space 300 with the inflatable plate 23. The air supply member 25 communicates with the expansion space 300 through the through hole 200. The air supply member 25 is adapted to communicate with an external air source to supply air to the expansion space 300 so as to expand the air bag 24 toward the clamping space 100. When the number of the through holes 200 is plural, the inflatable plate 23 with plural through holes 200 supplies air to the expansion space 300, so that the inflation of the air bag 24 is more uniform, the clamping force applied to the diaphragm in the clamping space 100 is more uniform, the diaphragm part is prevented from moving relative to the air bag 24 due to uneven stress of the diaphragm, wrinkles are formed and/or the extending direction of the diaphragm is not perpendicular to the winding shaft, and the winding effect of the battery core is improved.

In some embodiments, as shown in fig. 15, the through holes 200 are uniformly distributed on the air inflation plate 23 along the winding axis of the winding needle mechanism 20. So can further promote the homogeneity of giving vent to anger of aeration panel 23, and then promote the homogeneity of gasbag 24 inflation for the clamping force that the diaphragm received is more even.

In one embodiment, as shown in fig. 15 and 17, the first winding needle 21 and the second winding needle 22 are each provided with an inflation plate 23. So make the both sides of diaphragm accessible gasbag 24 centre gripping, each gasbag 24 is through the aeration panel 23 that has a plurality of through-holes 200 to flexible space 300 air feed, and then makes the clamping force that the diaphragm both sides received more even, further avoids the diaphragm atress uneven. It will be appreciated that in other embodiments, one of the first 21 and second 22 winding needles is provided with an inflatable panel 23 and the other is provided with a flexible structure disposed opposite the bladder 24.

In one embodiment, as shown in fig. 16, the first winding needle 21 and the second winding needle 22 are each provided with a mounting groove, and the air inflation plate 23 is mounted in the mounting groove. So can make things convenient for the installation of aeration panel 23 through the setting of mounting groove. Meanwhile, the air flow can be rectified by the mounting groove, so that the air outlet uniformity of the air charging plate 23 is further improved.

In one embodiment, referring to fig. 12, 16 and 17, the mounting base 26 includes a housing 261, a first slider 262 and a second slider 263. The first winding needle 21 is slidably connected to the housing 261 via a first slider 262. The second winding needle 22 is slidably connected to the housing 261 via a second slider 263. The driving assembly 27 slides with respect to the housing 261 by driving the first slider 262 and the second slider 263 to change the pitch of the first winding needle 21 and the second winding needle 22 in the radial direction of the winding shaft of the winding needle mechanism 20. So through the sliding fit of the first slider 262 and the second slider 263 relative to the housing 261, the stability of the movement of the first slider 262 and the second slider 263 can be increased, and then the movement precision and stability of the first winding needle 21 and the second winding needle 22 arranged on the first slider 262 and the second slider 263 are improved, and the precision of the inner contour of the battery cell formed by the first winding needle 21 and the second winding needle 22 is ensured.

Further, as shown in fig. 12 and 17, the casing 261 is provided with a guide rod 264, and the first slider 262 and the second slider 263 are connected with the casing 261 through the guide rod 264, so as to further improve the sliding precision and stability of the first slider 262 and the second slider 263 relative to the casing 261.

In one embodiment, as shown in fig. 12 and 16, a first rolling member 265 is rotatably coupled to the first slider 262. A second rolling member 266 disposed opposite to the first rolling member 265 is rotatably connected to the second slider 263. The drive assembly 27 includes a shaft 271. The shaft 271 can be disposed between the first rolling member 265 and the second rolling member 266 to change the distance between the first rolling member 265 and the second rolling member 266, thereby driving the first slider 262 and the second slider 263 to slide relative to the housing 261. By thus engaging the first rolling member 265 and the second rolling member 266 with the shaft 271, it is possible to reduce the contact area between the driving unit 27 and the first slider 262 and the second slider 263 and to reduce wear when driving the first winding needle 21 and the second winding needle 22 to move in the radial direction of the winding shaft. Meanwhile, through the arrangement of the first rolling element 265 and the second rolling element 266, the first rolling element 265 and the second rolling element 266 roll relative to the shaft lever 271, so that the driving jamming risk is reduced, and the smoothness of driving the first winding needle 21 and the second winding needle 22 is ensured.

In one embodiment, referring to fig. 9-12 and 16 in combination, the needle winding mechanism 20 further includes a guide 28. The guide 28 is provided on the housing 261, and the shaft 271 is provided through the guide 28 and slidably connected to the guide 28. The accuracy and stability of the movement of the shaft 271 can be improved by the guide 28, and the stability of the driving of the first winding needle 21 and the second winding needle 22 can be ensured. Further, the guiding element 28 is in a sleeve-shaped structure and is sleeved on the shaft lever 271, so that the sliding position of the shaft lever 271 and the guiding element 28 is not interfered by external impurities, and the sliding stability is ensured.

In one embodiment, as shown in fig. 16, the shaft 271 includes a sliding segment 2711 and a trigger segment 2712. The slide segment 2711 has a radial dimension that is greater than the trigger segment 2712. The slide segment 2711 is slidably coupled to the guide 28. The trigger segment 2712 is disposed on the slide segment 2711 and is capable of being disposed between the first roller 265 and the second roller 266. In this way, the rigidity and sliding stability of the shaft 271 can be improved by slidably connecting the slide segment 2711 having a large radial dimension to the guide 28. By driving the first rolling member 265 and the second rolling member 266 through the trigger segment 2712 having a smaller radial dimension, the avoiding space for avoiding the shaft 271 can be reduced, so that the structure of the needle winding mechanism 20 is more compact.

In one embodiment, as shown in fig. 2, the drive assembly 27 further includes a trigger end 272 and a first resilient member 273. The trigger end 272 is disposed on the shaft 271, and the first resilient member 273 is disposed between the trigger end 272 and the guide member 28, and the trigger end 272 is capable of driving the shaft 271 to slide relative to the guide member 28 and compress the first resilient member 273 to the guide member 28. Thus, when external force acts on the trigger end 272, elastic buffering can be formed, and the trigger end 272 is prevented from being damaged by stress. Meanwhile, the first elastic member 273 releases the elastic force to return the shaft 271. Further, the winding needle mechanism 20 further includes a second elastic member (not shown). The trigger segment 2712 is disposed between the first roller 265 and the second roller 266 and is capable of driving the first slider 262 and the second slider 263 to compress the second elastic member to the housing 261, and when the trigger segment 2712 is moved out from between the first roller 265 and the second roller 266, the second elastic member releases the elastic force to drive the first slider 262 and the second slider 263 to slide relative to the housing 261 so as to reset the first winding needle 21 and the second winding needle 22. Further, trigger segment 2712 may be a stepped shaft enabling a variety of pitch sizes between first winding needle 21 and second winding needle 22.

In one embodiment, as shown in fig. 1, 3, 5, 7 and 8, the winding apparatus further comprises a first drive mechanism and a docking mechanism 40. The first driving mechanism is provided on the base 10. The first driving mechanism can drive the needle winding mechanism 20 to move relative to the base 10 to dock with or separate from the docking mechanism 40. The clamping stability of the winding needle mechanism 20 to the diaphragm can be further improved through the arrangement of the butt joint mechanism 40, and the winding effect of the battery cell is further improved. The first driving mechanism includes a first driving module 31 and a second driving module 32. Before the battery cell winding, the first driving module 31 drives the winding needle mechanism 20 to be in butt joint with the butt joint mechanism 40. Before the battery cell is separated from the winding needle mechanism 20, the winding needle mechanism 20 needs to be driven to be separated from the docking mechanism 40 by the second driving module 32.

In one embodiment, as shown in fig. 8 and 10, the first winding pin 21 is provided with a first insertion portion 211. The second winding needle 22 is provided with a second insertion portion 221. The docking mechanism 40 includes a docking member 41, and the first plug portion 211 and the second plug portion 221 can be plugged into the docking member 41. In this way, the contact area between the first winding needle 21 and the second winding needle 22 and the docking mechanism 40 can be increased by the plug-in cooperation between the first plug-in connection portion 211 and the second plug-in connection portion 221 and the docking member 41, so that the docking stability is improved. Further, the first plug-in portion 211, the second plug-in portion 221 and the butt-joint piece 41 are provided with guiding surfaces, so that the first plug-in portion 211 and the second plug-in portion 221 can be conveniently plugged in the butt-joint piece 41.

In one embodiment, as shown in fig. 5 and 8, the docking mechanism 40 further includes a frame 42, and the docking member 41 is rotatably connected to the frame 42. So that the rotation freedom of the first winding needle 21 and the second winding needle 22 is not limited by the butt piece 41 when the battery cell is wound, and the smoothness of the winding of the battery cell is ensured.

In one embodiment, as shown in fig. 2, the winding apparatus further comprises a second driving mechanism 50, the second driving mechanism 50 being configured to drive the shaft 271 between the first rolling member 265 and the second rolling member 266 or out from between the first rolling member 265 and the second rolling member 266. The second drive mechanism 50 includes a drive unit 51 and first and second outputs 52 and 53. The driving unit 51 is capable of driving the first output 52 and the second output 53 to rotate and move in a straight line. Specifically, the driving unit 51 is capable of driving the first output end 52 to rotate to face the trigger end 272, and driving the first output end 52 to move linearly to drive the trigger end 272, so that the driving shaft 271 passes between the first rolling member 265 and the second rolling member 266. When the shaft 271 is required to be moved out from between the first rolling member 265 and the second rolling member 266, the driving unit 51 drives the first output end 52 to be separated from the trigger end 272, and the trigger segment 2712 drives the shaft 271 to retract under the driving of the first elastic member 273. In order to ensure the resetting precision of the shaft 271, the driving unit 51 drives the second output end 53 to rotate to contact with the trigger end 272, and drives the second output end 53 to linearly move so as to drive the trigger end 272 to reset the shaft 271.

In one embodiment, as shown in fig. 1, 3 and 4, the base 10 includes a body 11 and a rotating member 12, the winding needle mechanism 20 is rotatably connected with the rotating member 12, and the winding apparatus further includes a third driving mechanism 60, and the third driving mechanism 60 drives the rotating member 12 to rotate relative to the body 11. The rotary member 12 has at least a winding station, a rubberizing station and a blanking station in its rotational path, and the winding apparatus further includes a fourth driving mechanism 70, a fixing mechanism 80, a shearing mechanism (not shown) and a rubberizing mechanism (not shown). The fourth driving mechanism 70 can drive the winding needle mechanism 20 at the winding station to rotate so as to wind the battery cells. The fourth driving mechanism 70 can drive the winding needle mechanism 20 at the rubberizing station to rotate and fix the core material in cooperation with the fixing mechanism 80. The shearing mechanism is used for cutting off the tail end of the battery core material, and the rubberizing mechanism is used for rubberizing and fixing the free end of the battery core material on the battery core body. Wherein the fixing mechanism 80 has a vacuum suction plate so as not to fall down after the tail end is cut off. Further, the first driving module 31 and the second driving module 32 are disposed on the body 11, and the needle winding mechanism 20 is provided with a driving portion 29 cooperating with the first driving module 31 and the second driving module 32.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims

1. The needle mechanism is rolled up, its characterized in that includes:

2. The needle winding mechanism of claim 1, wherein the mount comprises a housing, a first slider and a second slider, the first needle winding mechanism is slidably coupled to the housing via the first slider, the second needle winding mechanism is slidably coupled to the housing via the second slider, and the drive assembly is configured to slide relative to the housing by driving the first slider and the second slider to vary the spacing of the first needle winding mechanism and the second needle winding mechanism in a radial direction of a winding axis of the needle winding mechanism.

3. The needle winding mechanism of claim 2, wherein a first roller is rotatably connected to the first slider, a second roller disposed opposite to the first roller is rotatably connected to the second slider, and the driving assembly comprises a shaft rod capable of being inserted between the first roller and the second roller to change a distance between the first roller and the second roller, thereby driving the first slider and the second slider to slide relative to the housing.

4. A needle winding mechanism according to claim 3, further comprising a guide member provided to the housing, the shaft passing through the guide member and slidably coupled thereto.

5. The needle winding mechanism of claim 4, wherein the shaft comprises a sliding section and a triggering section, the sliding section having a larger radial dimension than the triggering section, the sliding section being slidably coupled to the guide member, the triggering section being disposed on the sliding section and capable of being disposed between the first rolling member and the second rolling member.

6. The needle winding mechanism of claim 5, wherein the drive assembly further comprises a trigger end disposed on the shaft and a first resilient member disposed between the trigger end and the guide member, the trigger end being capable of driving the shaft to slide relative to the guide member and compressing the first resilient member to the guide member.

7. Winding device, characterized in that it comprises a plurality of winding needle mechanisms according to any one of claims 1 to 6.

8. The winding apparatus of claim 7, wherein the winding apparatus comprises a base, a first drive mechanism and a docking mechanism, the winding needle mechanism is rotatably connected with the base, the first drive mechanism is provided on the base, and the first drive mechanism is capable of driving the winding needle mechanism to move relative to the base to dock with or disengage from the docking mechanism.

9. The winding device according to claim 8, wherein the first winding needle is provided with a first plug-in portion and the second winding needle is provided with a second plug-in portion, and the docking mechanism comprises a docking member, and the first plug-in portion and the second plug-in portion are capable of being plugged in the docking member.

10. The winding apparatus of claim 9, wherein the docking mechanism further comprises a frame, the docking member being rotatably coupled to the frame.