CN220984601U

CN220984601U - Needle winding device

Info

Publication number: CN220984601U
Application number: CN202322610819.7U
Authority: CN
Inventors: 吴泽喜; 胡永超; 黄本夫; 王琨
Original assignee: Shenzhen Chengjie Intelligent Equipment Co Ltd
Current assignee: Shenzhen Chengjie Intelligent Equipment Co Ltd
Priority date: 2023-09-25
Filing date: 2023-09-25
Publication date: 2024-05-17
Anticipated expiration: 2033-09-25

Abstract

The application provides a needle winding device which comprises a mounting sleeve, a needle winding assembly and a fixing assembly, wherein the mounting sleeve is connected with a winding machine; the winding needle assembly comprises a sleeve shaft part, a winding needle part and a fastening piece, wherein the sleeve shaft part is sleeved in the mounting sleeve, two ends of the sleeve shaft part extend out of the mounting sleeve, the sleeve shaft part is in sliding connection with the mounting sleeve, the winding needle part is connected to one end of the sleeve shaft part extending out of the mounting sleeve, and the fastening piece enables the sleeve shaft part and the winding needle part to be detachably connected together; the fixed component is connected to the other end of the sleeve shaft part, which extends out of the mounting sleeve, and is abutted between the mounting sleeve and the winding machine, so as to limit the sleeve shaft part to slide relative to the mounting sleeve. Compared with the prior art, the whole winding needle assembly can be directly pulled out, the winding needle can be replaced only by loosening the fastener on the sleeve shaft part outside the equipment, the winding needle assembly is assembled back into the mounting sleeve after the replacement, the whole replacement process can be continued, the winding needle replacement speed is greatly improved by only a few minutes, and the production efficiency is improved.

Description

Needle winding device

Technical Field

The application relates to the technical field of battery cell production, in particular to a winding needle device.

Background

As is well known, the battery cell of a lithium battery is wound by a winding machine, and is formed by winding a diaphragm and a pole piece by two-piece winding needles in the winding machine. Because the pole piece and the diaphragm are required to be continuously clamped and rotated, the winding needle belongs to the class of wearing parts, and the frequency of damage and replacement is high. Once the winding needle is damaged and needs to be replaced, the whole equipment needs to be stopped, and production is interrupted.

The existing step of changing the winding needle is to remove the supporting and positioning part at the front end of the winding needle, then remove the needle nozzle protective sleeve, then remove the damaged winding needle, and then change the winding needle with a new winding needle. Such steps are cumbersome, affect production efficiency, and must be replaced on the equipment, which is inconvenient.

Disclosure of utility model

The application mainly provides a winding needle device which can ensure quick and convenient replacement of winding needles.

In order to solve the technical problems, the application adopts a technical scheme that: the winding needle device comprises a mounting sleeve, a winding needle assembly and a fixing assembly, wherein the mounting sleeve is connected with the winding machine; the winding needle assembly comprises a sleeve shaft part, a winding needle part and a fastener, wherein the sleeve shaft part is sleeved in the installation sleeve, two ends of the sleeve shaft part extend out of the installation sleeve, the sleeve shaft part is in sliding connection with the installation sleeve, the winding needle part is connected with one end of the sleeve shaft part extending out of the installation sleeve, and the fastener is respectively connected with the sleeve shaft part and the winding needle part so that the sleeve shaft part and the winding needle part are detachably connected together; the fixing component is connected with the other end of the sleeve shaft part extending out of the mounting sleeve, and is abutted between the mounting sleeve and the winding machine and used for limiting the sleeve shaft part to slide relative to the mounting sleeve.

In a specific embodiment, the sleeve shaft portion comprises a first needle sleeve and a second needle sleeve, the first needle sleeve is sleeved in the installation sleeve and is in sliding connection with the installation sleeve, the second needle sleeve is sleeved in the first needle sleeve and is in sliding connection with the first needle sleeve, the winding needle portion comprises a first winding needle and a second winding needle, the first winding needle and the first needle sleeve are detachably connected, the second winding needle and the second needle sleeve are detachably connected, and the first winding needle and the second winding needle are oppositely arranged and used for clamping a pole piece.

In a specific embodiment, the winding needle assembly further comprises a positioning piece, the positioning piece is connected with the second needle sleeve, a first sliding groove is formed in the mounting sleeve along the length direction of the mounting sleeve, a second sliding groove is formed in the first needle sleeve along the length direction of the mounting sleeve, the second sliding groove is opposite to the first sliding groove in position, the positioning piece penetrates through the second sliding groove to be in sliding connection with the first sliding groove, and the positioning piece can slide along the first sliding groove to be separated from the first sliding groove.

In a specific embodiment, the fixing component comprises a first fixing part, and the first fixing part is in threaded connection with one end of the first needle sleeve extending out of the mounting sleeve and abuts against the end face of the mounting sleeve.

In a specific embodiment, the first fixing portion includes a push-pull disc and a lock nut, the push-pull disc is in threaded connection with the first needle sleeve, the lock nut is in threaded connection with the first needle sleeve, and two ends of the lock nut are respectively abutted against the push-pull disc and the mounting sleeve.

In a specific embodiment, the fixing assembly further comprises a second fixing portion and a fixing piece, one end, far away from the second winding needle, of the second needle sleeve extends out of the first needle sleeve, the second fixing portion is connected with one end, extending out of the first needle sleeve, of the second needle sleeve, and the fixing piece penetrates through the second fixing portion to be connected with the second needle sleeve, so that the second fixing portion and the second needle sleeve are fixed together.

In a specific embodiment, the first needle sleeve is provided with at least one first fixing hole along the length direction thereof, and the fastener penetrates through the first fixing hole to be connected with the first winding needle; the second needle sleeve is provided with at least one second fixing hole along the length direction of the second needle sleeve, and the fastener penetrates through the second fixing hole to be connected with the second winding needle.

In a specific embodiment, the second fixing hole is opposite to the second sliding groove, and when the positioning piece slides along the second sliding groove, the second fixing hole is exposed out of the second sliding groove.

In a specific embodiment, the fixing assembly further includes a gasket, and the gasket is sleeved at one end of the second needle sleeve extending out of the first needle sleeve and is respectively abutted against the second fixing portion and the first needle sleeve.

In a specific embodiment, the second needle sleeve is provided with a limiting groove, and the positioning piece is installed in the limiting groove and connected with the second needle sleeve.

The beneficial effects of the application are as follows: when the winding machine drives the mounting sleeve to rotate, the mounting sleeve drives the inner sleeve shaft part to rotate together, so that the winding needle part is driven to clamp the pole piece to wind, and normal winding work is ensured; when the winding needle needs to be replaced, the winding machine is stopped, the fixed component is pulled to drive the whole winding needle component to be pulled out from the installation sleeve, the fastening piece is taken down, the winding needle part and the sleeve shaft part are separated, the winding needle part is replaced with a new winding needle part, and compared with the prior art, the winding needle can be directly pulled out, the winding needle can be replaced by loosening the fastening piece on the sleeve shaft part outside the equipment, the winding needle component is assembled into the installation sleeve after the replacement, the operation can be continued, the whole replacement process only needs a few minutes, the speed of replacing the winding needle is greatly improved, and the production efficiency is improved.

Drawings

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

FIG. 1 is a schematic view of the structure of an embodiment of a needle winding device provided by the present application;

FIG. 2 is a schematic view of an embodiment of a winding needle assembly provided by the present application;

FIG. 3 is an exploded view of a component of an embodiment of the needle winding device provided by the present application;

FIG. 4 is a schematic view of a first embodiment of a needle hub provided by the present application;

FIG. 5 is a schematic cross-sectional view of an embodiment of a needle rolling device provided by the present application;

FIG. 6 is a schematic cross-sectional view of an embodiment of a needle winding device provided by the present application;

Fig. 7 is another schematic cross-sectional view of an embodiment of a needle winding device provided by the present application.

1. A mounting sleeve; 2. a winding needle assembly; 3. a fixing assembly; 4. a pole piece; 11. a first chute; 21. a sleeve part; 22. a winding needle part; 23. a fastener; 24. a positioning piece; 31. a first fixing portion; 32. a second fixing portion; 33. a fixing member; 34. a gasket; 211. a first needle hub; 212. a second needle sheath; 221. a first winding needle; 222. a second winding needle; 311. a push-pull disc; 312. a lock nut; 313. a gasket; 2111. a second chute; 2112. a first fixing hole; 2121. a second fixing hole; 2122. and a limit groove.

Detailed Description

The present application will be described in further detail with reference to the drawings and embodiments. It is to be noted that the following embodiments are only for illustrating the present application, but do not limit the scope of the present application. Likewise, the following embodiments are only some, but not all, of the embodiments of the present application, and all other embodiments obtained by a person of ordinary skill in the art without making any inventive effort are within the scope of the present application.

The terms "first," "second," "third," and the like in this disclosure are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, such as two, three, etc., unless explicitly specified otherwise. All directional indicators (such as up, down, left, right, front, back … …) in embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components at a particular pose (as shown in the drawings) and if the particular pose changes, the directional indicator changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. A process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed but may optionally include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

Referring to fig. 1 to 2 together, the present application provides a winding needle device, which comprises a mounting sleeve 1, a winding needle assembly 2 and a fixing assembly 3, wherein the winding needle assembly 2 comprises a sleeve shaft portion 21, the sleeve shaft portion 21 is slidably sleeved in the mounting sleeve 1, two ends of the sleeve shaft portion 21 extend out of the mounting sleeve 1, one end of the sleeve shaft portion 21 extending out of the mounting sleeve 1 is connected with a winding needle portion 22, and the other end of the sleeve shaft portion 21 extending out of the mounting sleeve 1 is connected with the fixing assembly 3; when the mounting sleeve 1 is connected to the winding machine, the fixing member 3 is abutted between the mounting sleeve 1 and the winding machine, and the restricting sleeve shaft portion 21 slides relative to the mounting sleeve 1, and at this time, the winding needle portion 22 is used for holding the pole piece 4.

In practical application, the sleeve shaft portion 21 may be first inserted into the mounting sleeve 1 and slidably connected with the mounting sleeve 1, the needle winding portion 22 is connected to one end of the sleeve shaft portion 21 by the fastener 23, the fixing assembly 3 is connected to the other end of the sleeve shaft portion 21, and then the mounting sleeve 1 is connected to the winding machine, at this time, the fixing assembly 3 abuts between the winding machine and the mounting sleeve 1 to prevent the sleeve shaft portion 21 from sliding relative to the mounting sleeve 1; or the installation sleeve 1 is connected with the winding machine, and then the winding needle component 2 is sleeved in the installation sleeve 1 and is connected with the installation sleeve 1 in a sliding way; when the winding machine works normally, the winding machine drives the mounting sleeve 1 to rotate, and the mounting sleeve 1 drives the sleeve shaft part 21 inside to rotate together, so that the winding needle part 22 is driven to clamp the pole piece 4 for winding; when the winding needle needs to be replaced, the winding machine is stopped, the fixing assembly 3 is pulled to drive the whole winding needle assembly 2 to be pulled out of the mounting sleeve 1, the fastener 23 is taken down, the winding needle portion 22 is separated from the sleeve shaft portion 21, a new winding needle portion 22 is to be replaced, the new winding needle portion 22 is connected with the sleeve shaft portion 21, and the sleeve shaft portion 21 stretches into the mounting sleeve 1 to perform next work.

Compared with the prior art, the whole winding needle assembly 2 can be directly pulled out, the winding needle can be replaced by loosening the fastener 23 on the sleeve shaft part 21 outside the equipment, the winding needle assembly 2 is assembled back into the mounting sleeve 1 after the replacement, the whole replacement process only needs a few minutes, the winding needle replacement speed is greatly improved, and the production efficiency is improved.

Referring to fig. 3 and 4, the sleeve shaft 21 includes a first needle sleeve 211 and a second needle sleeve 212, the first needle sleeve 211 is sleeved inside the mounting sleeve 1 and slidably connected with the mounting sleeve 1, the second needle sleeve 212 is sleeved inside the first needle sleeve 211 and slidably connected with the first needle sleeve 211, the needle winding portion 22 includes a first winding needle 221 and a second winding needle 222, the first winding needle 221 and the first needle sleeve 211 are detachably connected, the second winding needle 222 is detachably connected with the second needle sleeve 212, and the first winding needle 221 and the second winding needle 222 are oppositely arranged for clamping the pole piece 4. In practical application, the membrane and the pole piece 4 are usually wound by two winding needles, and in order to more accurately clamp the pole piece 4 and the membrane, the two winding needles cannot be arranged on the same needle sleeve, so that the application is provided with the first needle sleeve 211 and the second needle sleeve 212 which are respectively used for connecting the first winding needle 221 and the second winding needle 222, when the winding needles need to be replaced, the first needle sleeve 211 and the second needle sleeve 212 are firstly pulled out of the mounting sleeve 1 together so as to replace the first winding needle 221, and then the second needle sleeve 212 is pulled out of the first needle sleeve 211 so as to replace the second winding needle 222, so that the winding needles can be respectively replaced independently according to the requirement, and the replacement speed is improved.

Wherein, the first needle sleeve 211 is provided with at least one first fixing hole 2112 along the length direction thereof, and the fastener 23 passes through the first fixing hole 2112 to be connected with the first winding needle 221; the second needle sheath 212 is provided with at least one second fixing hole 2121 along the length direction thereof, and the fastener 23 is connected with the second winding needle 222 through the second fixing hole 2121. During normal operation, the fastener 23 passes through the first fixing hole 2112 to fix the first needle sleeve 211 and the first winding needle 221 together, the fastener 23 passes through the second fixing hole 2121 to fix the second needle sleeve 212 and the second winding needle 222 together, when the winding needle needs to be replaced, the winding needle can be replaced only by disassembling the fastener 23, and optionally, the first fixing hole 2112 and the second fixing hole 2121 can be polygonal, and the fastener 23 is polygonal matched with the first fixing hole 2112 or the second fixing hole 2121, so that relative rotation between the fastener 23 and the first fixing hole 2112 or the second fixing hole 2121 can be prevented, and falling is prevented; the fastener 23 may be a screw or a rivet, which is not limited thereto.

Referring to fig. 5 and 7, the winding needle assembly 2 further includes a positioning member 24, the positioning member 24 is connected with the second needle sleeve 212, the first sliding groove 11 is formed in the mounting sleeve 1 along the length direction of the first needle sleeve, the second sliding groove 2111 is formed in the first needle sleeve 211 along the length direction of the first needle sleeve, the second sliding groove 2111 is opposite to the first sliding groove 11, the positioning member 24 passes through the second sliding groove 2111 and is slidably connected with the first sliding groove 11, and the positioning member 24 can slide along the first sliding groove 11 to be separated from the first sliding groove 11. In this embodiment, the second needle sheath 212 is provided with the positioning member 24, and the first chute 11 and the second chute 2111 are opposite, so that the positioning member 24 passes through the second chute 2111 and is slidably connected with the first chute 11, so that the positioning member 24 is slidably connected with the first chute 11 and the second chute 2111 at the same time, so that not only is the sliding connection between the second needle sheath 212 and the first needle sheath 211 realized, but also the sliding connection between the first needle sheath 211 and the mounting sheath 1 realized, and meanwhile, the positioning member 24 prevents the mounting sheath 1 from rotating relative to the first needle sheath 211 and the second needle sheath 212, that is, when the winder drives the mounting sheath 1 to rotate, the first needle sheath 211 and the second needle sheath 212 rotate along with the mounting sheath 1. It will be appreciated that the end of the second needle sheath 212 remote from the second winding needle 222 extends out of the first needle sheath 211, and the outer diameter of the end of the second needle sheath 212 extending out is larger than the inner diameter of the first needle sheath 211, so that the first needle sheath 211 drives the second needle sheath 212 to be pulled out of the mounting sheath 1 more conveniently.

At this time, when the first sliding groove 11 is opened along the two ends of the length direction of the mounting sleeve 1 and the first needle sleeve 211 is pulled out from the mounting sleeve 1, the outer diameter of one end of the second needle sleeve 212 extending out of the first needle sleeve 211 is larger than the inner diameter of the first needle sleeve 211, so that the first needle sleeve 211 drives the second needle sleeve 212 to slide along the first sliding groove 11 together until the positioning piece 24 is separated from the first sliding groove 11, that is, the first needle sleeve 211 and the second needle sleeve 212 are separated from the mounting sleeve 1, thereby facilitating the replacement of the first winding needle 221; the second needle sheath 212 is then withdrawn from the first needle sheath 211 and the retainer 24 is slid along the second chute 2111 to disengage from the second chute 2111, facilitating replacement of the second winding needle 222.

The second fixing hole 2121 is located opposite to the second sliding groove 2111, and when the positioning member 24 slides along the second sliding groove 2111, the second fixing hole 2121 is exposed to the second sliding groove 2111. In order to facilitate replacement of the second winding needle 222, and ensure the stability of the first needle holder 211, prevent the first needle holder 211 from deforming, the second chute 2111 is not suitable to be opened too long, the second chute 2111 is preferably a chute body with a certain length and two closed ends, at this time, the positioning member 24 cannot be separated from the second chute 2111 when sliding along the second chute 2111, the position of the second fixing hole 2121 is opposite to the second chute 2111, that is, the second fixing hole 2121 and the second chute 2111 are arranged on the same straight line, when the positioning member 24 slides along the second chute 2111, only the second fixing hole 2121 is required to be slid to be exposed in the second chute 2111, so that the fastener 23 in the second fixing hole 2121 can be detached, thereby realizing replacement of the second winding needle 222.

Referring again to fig. 2, the second needle sheath 212 is provided with a limiting groove 2122, and the positioning member 24 is mounted in the limiting groove 2122 and connected to the second needle sheath 212. In this embodiment, after the second needle sleeve 212 is sleeved inside the first needle sleeve 211, the second needle sleeve 212 is rotated until the limiting groove 2122 is aligned with the second sliding groove 2111, and then the positioning member 24 is fixed in the limiting groove 2122, wherein the limiting groove 2122 enables the mounting position of the positioning member 24 to be more accurate, the positioning member 24 is convenient to rapidly mount, the limiting groove 2122 is provided with a limiting hole, and a screw or a rivet passes through the positioning member 24 to be fixed with the limiting hole, so that the positioning member 24 and the second needle sleeve 212 are fixed together, then the positioning member 24 is aligned with the first sliding groove 11, the first needle sleeve 211 is pushed into the mounting sleeve 1, and sliding connection between the first needle sleeve 211 and the mounting sleeve 1 is realized.

Referring again to fig. 3, the fixing assembly 3 includes a first fixing portion 31, where the first fixing portion 31 is screwed with an end of the first needle sleeve 211 extending out of the mounting sleeve 1 and abuts against an end surface of the mounting sleeve 1. The first fixing portion 31 is in threaded connection with the first needle sleeve 211, so that the first needle sleeve 211 can be driven to be pulled out of the mounting sleeve 1 by pulling the first fixing portion 31, the first fixing portion 31 provides a position convenient for a user to apply force and hold, meanwhile, the length of the first needle sleeve 211 extending into the mounting sleeve 1 is controlled by abutting the first fixing portion 31 against the end face of the mounting sleeve 1, and accordingly the extending length of the first winding needle 221 is controlled, specifically, if the first fixing portion 31 is screwed in the direction close to the first needle sleeve 211, the deeper the first needle sleeve 211 is screwed, the shorter the first needle sleeve 211 extends into the mounting sleeve 1, and if the first fixing portion 31 is screwed in the direction far away from the first needle sleeve 211, the shallower the first needle sleeve 211 is screwed, the longer the first needle sleeve 211 extends into the mounting sleeve 1.

The first fixing portion 31 includes a push-pull disc 311 and a locking nut 312, the push-pull disc 311 is in threaded connection with the first needle sleeve 211, the locking nut 312 is in threaded connection with the first needle sleeve 211, and two ends of the locking nut are respectively propped against the push-pull disc 311 and the mounting sleeve 1. In practical application, the lock nut 312 is first screwed with the first needle sleeve 211, the depth of the lock nut 312 screwed into the first needle sleeve 211 is adjusted, that is, the position of the lock nut 312 on the first needle sleeve 211 is adjusted, then the push-pull disc 311 is screwed with the first needle sleeve 211 and abuts against the lock nut 312, finally the first needle sleeve 211 is stretched into the mounting sleeve 1 until the lock nut 312 abuts against the mounting sleeve 1, the position of the lock nut 312 on the first needle sleeve 211 is adjusted, the length of the first needle sleeve 211 stretching into the mounting sleeve 1 is adjusted, the stretching length of the first winding needle 221 is adjusted, the push-pull disc 311 provides a position convenient for a user to apply force and hold, and the user drives the first needle sleeve 211 to slide relative to the mounting sleeve 1 by pulling the push-pull disc 311. Optionally, in order to reduce wear between the components, a spacer 313 may be provided between the lock nut 312 and the mounting sleeve 1.

Referring to fig. 3, 5 and 6, the fixing assembly 3 further includes a second fixing portion 32 and a fixing member 33, wherein an end of the second needle sheath 212 far from the second winding needle 222 extends out of the first needle sheath 211, the second fixing portion 32 is connected to an end of the second needle sheath 212 extending out of the first needle sheath 211, and the fixing member 33 passes through the second fixing portion 32 to be connected with the second needle sheath 212, so that the second fixing portion 32 and the second needle sheath 212 are fixed together. In practical application, in order to facilitate the second needle sheath 212 to be withdrawn from the first needle sheath 211, the second fixing portion 32 is connected to one end of the second needle sheath 212 extending out of the first needle sheath 211, the fixing piece 33 passes through the second fixing portion 32 and is connected with the second needle sheath 212, so that the second fixing portion 32 and the second needle sheath 212 are fixed together, when the coiled needle needs to be replaced, the push-pull disc 311 is pulled to withdraw the first needle sheath 211 from the mounting sheath 1, so as to facilitate the replacement of the first coiled needle 221, and then the second fixing portion 32 is pulled to slide the second needle sheath 212 relative to the first needle sheath 211, so as to facilitate the replacement of the second coiled needle 222, and the second fixing portion 32 provides a position for facilitating the force application and holding of a user; in normal operation, the second fixing portion 32 abuts against the winder to limit the sliding of the first needle sleeve 211 relative to the mounting sleeve 1, avoiding influencing the winding operation, alternatively, in order to reduce the friction between the second fixing portion 32 and the winder, the second fixing portion 32 may employ a bearing seat.

Referring again to fig. 6, the fixing assembly 3 further includes a washer 34, where the washer 34 is sleeved on an end of the second needle sleeve 212 extending out of the first needle sleeve 211, and abuts against the second fixing portion 32 and the first needle sleeve 211 respectively. In practical applications, the gasket 34 is sleeved at one end of the second needle sleeve 212 extending out of the first needle sleeve 211, the longer the gasket 34, the longer the two ends of the gasket 34 respectively prop against the second fixing portion 32 and the first needle sleeve 211, so that the farther the distance between the second fixing portion 32 and the first needle sleeve 211 is, which is equivalent to the movement of the second fixing portion 32 in the direction away from the first needle sleeve 211, the second needle sleeve 212 moves outwards of the first needle sleeve 211 to be connected with the second fixing portion 32, at this time, the longer the second needle sleeve 212 extends out of the first needle sleeve 211, that is, the shorter the second needle sleeve 212 extends into the first needle sleeve 211, and the shorter the extending length of the second winding needle 222. The length of the second needle sheath 212 extending into the first needle sheath 211 and thus the length of the second winding needle 222 extending out can be adjusted by changing washers 34 of different lengths. It will be appreciated that the outer diameter of the washer 34 is greater than the inner diameter of the first needle hub 211.

Unlike the prior art, the application provides a winding needle device, which comprises a mounting sleeve 1, a winding needle assembly 2 and a fixing assembly 3, wherein the mounting sleeve 1 is connected with a winding machine, the winding needle assembly 2 comprises a sleeve shaft part 21, a winding needle part 22 and a fastening piece 23, the sleeve shaft part 21 is sleeved in the mounting sleeve 1, two ends of the sleeve shaft part extend out of the mounting sleeve 1, the sleeve shaft part 21 is in sliding connection with the mounting sleeve 1, the winding needle part 22 is connected at one end of the sleeve shaft part 21 extending out of the mounting sleeve 1, and the fastening piece 23 is respectively connected with the sleeve shaft part 21 and the winding needle part 22 so as to ensure that the sleeve shaft part 21 and the winding needle part 22 are detachably connected together; the fixing component 3 is connected to the other end of the sleeve shaft part 21 extending out of the mounting sleeve 1, the fixing component 3 is abutted between the mounting sleeve 1 and the winding machine, and is used for limiting the sleeve shaft part 21 to slide relative to the mounting sleeve 1, when the winding machine works normally, the winding machine drives the mounting sleeve 1 to rotate, the mounting sleeve 1 drives the inner sleeve shaft part 21 to rotate together, and therefore the winding needle part 22 is driven to clamp the pole piece 4 to wind; when the winding needle needs to be replaced, the winding machine is stopped, the fixing assembly 3 is pulled to drive the whole winding needle assembly 2 to be pulled out of the mounting sleeve 1, the fastener 23 is taken down, the winding needle portion 22 is separated from the sleeve shaft portion 21, a new winding needle portion 22 is to be replaced, the new winding needle portion 22 is connected with the sleeve shaft portion 21, and the sleeve shaft portion 21 stretches into the mounting sleeve 1 to perform next work. Compared with the prior art, the whole winding needle assembly 2 can be directly pulled out, the winding needle can be replaced by loosening the fastener 23 on the sleeve shaft part 21 outside the equipment, the winding needle assembly 2 is assembled back into the mounting sleeve 1 after the replacement, the whole replacement process only needs a few minutes, the winding needle replacement speed is greatly improved, and the production efficiency is improved.

The foregoing description is only a partial embodiment of the present application, and is not intended to limit the scope of the present application, and all equivalent devices or equivalent processes using the descriptions and the drawings of the present application or directly or indirectly applied to other related technical fields are included in the scope of the present application.

Claims

1. A winding needle device for use in a winding machine, comprising:

a mounting sleeve (1) connected with the winding machine;

The winding needle assembly (2) comprises a sleeve shaft part (21), a winding needle part (22) and a fastening piece (23), wherein the sleeve shaft part (21) is sleeved in the installation sleeve (1) and two ends of the sleeve shaft part extend out of the installation sleeve (1), the sleeve shaft part (21) is in sliding connection with the installation sleeve (1), the winding needle part (22) is connected with one end of the sleeve shaft part (21) extending out of the installation sleeve (1), and the fastening piece (23) is respectively connected with the sleeve shaft part (21) and the winding needle part (22) so that the sleeve shaft part (21) and the winding needle part (22) are detachably connected together;

The fixing component (3) is connected with the other end of the sleeve shaft part (21) extending out of the mounting sleeve (1), and the fixing component (3) is abutted between the mounting sleeve (1) and the winding machine and used for limiting the sleeve shaft part (21) to slide relative to the mounting sleeve (1).

2. The needle winding device according to claim 1, wherein the sleeve shaft portion (21) comprises a first needle sleeve (211) and a second needle sleeve (212), the first needle sleeve (211) is sleeved inside the mounting sleeve (1) and is in sliding connection with the mounting sleeve (1), and the second needle sleeve (212) is sleeved inside the first needle sleeve (211) and is in sliding connection with the first needle sleeve (211); the winding needle part (22) comprises a first winding needle (221) and a second winding needle (222), the first winding needle (221) is detachably connected with the first needle sleeve (211), the second winding needle (222) is detachably connected with the second needle sleeve (212), and the first winding needle (221) and the second winding needle (222) are oppositely arranged and used for clamping the pole piece (4).

3. The needle winding device according to claim 2, wherein the needle winding assembly (2) further comprises a positioning piece (24), the positioning piece (24) is connected with the second needle sleeve (212), a first sliding groove (11) is formed in the mounting sleeve (1) along the length direction of the mounting sleeve, a second sliding groove (2111) is formed in the first needle sleeve (211) along the length direction of the mounting sleeve, the second sliding groove (2111) is opposite to the first sliding groove (11), the positioning piece (24) is slidably connected with the first sliding groove (11) through the second sliding groove (2111), and the positioning piece (24) can slide along the first sliding groove (11) to be separated from the first sliding groove (11).

4. Needle rolling device according to claim 2, characterized in that the fixing assembly (3) comprises a first fixing part (31), the first fixing part (31) being screwed with one end of the first needle sleeve (211) extending out of the mounting sleeve (1) and abutting against an end face of the mounting sleeve (1).

5. The needle winding device according to claim 4, characterized in that the first fixing portion (31) comprises a push-pull disc (311) and a locking nut (312), the push-pull disc (311) is in threaded connection with the first needle sheath (211), the locking nut (312) is in threaded connection with the first needle sheath (211), and two ends are respectively abutted against the push-pull disc (311) and the mounting sheath (1).

6. The needle winding device according to claim 2, wherein the fixing assembly (3) further comprises a second fixing portion (32) and a fixing piece (33), one end of the second needle sleeve (212) far away from the second winding needle (222) extends out of the first needle sleeve (211), the second fixing portion (32) is connected to one end of the second needle sleeve (212) extending out of the first needle sleeve (211), and the fixing piece (33) penetrates through the second fixing portion (32) to be connected with the second needle sleeve (212) so that the second fixing portion (32) and the second needle sleeve (212) are fixed together.

7. A needle rolling device according to claim 3, characterized in that the first needle sleeve (211) is provided with at least one first fixing hole (2112) along the length direction thereof, and the fastener (23) is connected with the first needle rolling (221) through the first fixing hole (2112); the second needle sleeve (212) is provided with at least one second fixing hole (2121) along the length direction, and the fastener (23) penetrates through the second fixing hole (2121) to be connected with the second winding needle (222).

8. The needle winding device according to claim 7, wherein the second fixing hole (2121) is located opposite to the second slide groove (2111), and the second fixing hole (2121) is exposed to the second slide groove (2111) when the positioning member (24) slides along the second slide groove (2111).

9. The needle rolling device according to claim 6, wherein the fixing assembly (3) further comprises a gasket (34), and the gasket (34) is sleeved at one end of the second needle sleeve (212) extending out of the first needle sleeve (211) and is respectively abutted against the second fixing part (32) and the first needle sleeve (211).

10. A needle rolling device according to claim 3, characterized in that the second needle sheath (212) is provided with a limit groove (2122), and the positioning element (24) is arranged in the limit groove (2122) and is connected with the second needle sheath (212).