CN216773318U

CN216773318U - Winding device and winder

Info

Publication number: CN216773318U
Application number: CN202220130494.5U
Authority: CN
Inventors: 徐鑫
Original assignee: Sany Technology Equipment Co Ltd
Current assignee: Sany Technology Equipment Co Ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-06-17
Anticipated expiration: 2032-01-18

Abstract

The utility model provides a winding device and a winding machine, which belong to the technical field of lithium battery manufacturing equipment, and comprise: a turntable; the needle winding mechanisms are arranged on the rotary table and are arranged at intervals along the circumferential direction of the rotary table, and the needle winding mechanisms are suitable for circularly rotating at a winding station, a rubberizing station and a blanking station under the driving of the rotary table; fusing structure sets up between a plurality of book needle mechanisms, and fusing structure is suitable for fusing diaphragm between coiling station and rubberizing station. According to the winding device provided by the utility model, the fusing structure is arranged among the plurality of needle winding mechanisms, and when the needle winding mechanisms drive the battery cell to rotate from the winding station to the rubberizing station, the fusing structure fuses the diaphragm between the winding station and the rubberizing station, so that the fusing structure and the needle winding mechanisms are integrated, the occupied space is reduced, the fusing structure is utilized to fuse the diaphragm, the mode is simple, the occupied time is short, the cost is reduced, the efficiency is improved, and the production requirement can be met.

Description

Winding device and winder

Technical Field

The utility model relates to the technical field of lithium battery manufacturing equipment, in particular to a winding device and a winding machine.

Background

In the existing battery cell equipment, the winding type battery cell is adopted by the majority of lithium battery manufacturing enterprises due to the advantages of stable battery performance, high manufacturing efficiency and the like in the battery cell, and the proportion of the battery cell in the market is very large, so that the corresponding battery winding machine has a large demand.

In the production process of the winding lithium ion battery, the diaphragm and the positive and negative pole pieces are required to be wound, and the diaphragm is cut off by the diaphragm cutting device between the two winding battery cores, so that the next battery core can be manufactured. In the existing winding machine, the winding needle structure is far away from the diaphragm cutting device, the occupied space is overlarge, and the structure is more complex. And the diaphragm cutting process is more complicated, takes up longer auxiliary time (the auxiliary time is that the action that the former roll core finishes to the next roll core and starts to wind occupies), and is with higher costs, and efficiency is lower, does not satisfy the requirement of production.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the present invention is to overcome the defects of high cost, low efficiency and incapability of meeting production requirements of winding the battery cell in the prior art, so as to provide a winding device and a winding machine.

In order to solve the above problem, the present invention provides a winding device including: a turntable; the needle winding mechanisms are arranged on the rotary table and are arranged at intervals along the circumferential direction of the rotary table, and the needle winding mechanisms are suitable for being driven by the rotary table to rotate circularly at a winding station, a rubberizing station and a blanking station; and the fusing structure is arranged between the plurality of needle rolling mechanisms and is suitable for fusing the diaphragm between the winding station and the rubberizing station.

Optionally, the fusing structure comprises a supporting portion and a plurality of fusing portions, the supporting portion is connected with the rotating disc, and each fusing portion is located between adjacent needle winding mechanisms.

Optionally, the number of the needle winding mechanisms on the turntable is three, and one fusing part is arranged between every two adjacent needle winding mechanisms.

Optionally, the fusing part is a heating wire.

Optionally, the supporting part includes installation department and bulge, the center of installation department with the center of carousel coincides mutually, the fusing part is located the bulge is kept away from on the tip of installation department.

Optionally, the needle winding mechanism includes a first needle winding portion and a second needle winding portion, the first needle winding portion and/or the second needle winding portion is movably disposed, and the first needle winding portion and the second needle winding portion can clamp and wind the membrane therebetween.

Optionally, the first needle winding portion comprises a first outer needle and a first inner needle, the second needle winding portion comprises a second outer needle and a second inner needle, the first inner needle and the second inner needle are adapted to clamp the septum therebetween, and the outer portions of the first outer needle and the second outer needle are adapted to wrap the septum.

Optionally, the supporting portion is fixedly arranged, and the fusing portion is arranged on the supporting portion and is suitable for being located between the winding station and the rubberizing station.

The utility model also provides a winding machine comprising the winding device.

Optionally, the winding machine further comprises a rubberizing device and a blanking device.

The utility model has the following advantages:

1. according to the winding device provided by the utility model, the battery cell is wound, rubberized and discharged under the driving of the rotary table by utilizing the plurality of winding needle mechanisms, the fusing structure is arranged among the plurality of winding needle mechanisms, and when the winding needle mechanisms drive the battery cell to rotate from the winding station to the rubberizing station, the fusing structure fuses the diaphragm between the winding station and the rubberizing station, so that the fusing structure and the winding needle mechanisms are integrated, the occupied space is reduced, the fusing structure is utilized to fuse the diaphragm, the mode is simple, the occupied time is short, the cost is reduced, the efficiency is improved, and the production requirement can be met.

2. According to the winding device provided by the utility model, the fusing parts are arranged in a plurality, the fusing parts are fixed on the rotary table through the supporting parts and are positioned between the adjacent needle winding mechanisms, so that the fusing parts are arranged between the needle winding mechanisms positioned at the winding station and the needle winding mechanisms positioned at the rubberizing station in the rotating process of the rotary table, and the fusing parts are utilized to fuse the diaphragm.

3. According to the winding device, the fusing part is set as the heating wire, the structure is simple, and the heating process is quick.

4. According to the winding device provided by the utility model, the fusing part is arranged on the end part of the protruding part protruding out of the mounting part, so that the fusing part is more convenient to be matched and contacted with the diaphragm, and the diaphragm is fused conveniently.

5. According to the winding device provided by the utility model, the fixedly arranged supporting part is used for fixedly arranging the fusing part between the winding station and the rubberizing station, namely the fusing part cannot rotate along with the rotation of the rotary table, so that the diaphragm can be fused between the winding station and the rubberizing station by using the fusing part, and the structure of the fusing structure is simpler.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 shows a schematic structural diagram of a winding device provided by an embodiment of the present invention.

Description of reference numerals:

10. a turntable; 20. a needle winding mechanism; 21. a first needle winding part; 22. a second needle winding part; 30. a fusing structure; 31. a support portion; 311. an installation part; 312. a projection; 32. a fusing portion; 40. a diaphragm.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

One embodiment of the winding device as shown in fig. 1 comprises: a rotary disk 10, a needle winding mechanism 20 and a fusing structure 30. Roll up needle mechanism 20 and set up on carousel 10 to roll up needle mechanism 20 and be provided with a plurality ofly, a plurality of needle mechanisms 20 of rolling up set up along the circumference interval of carousel 10, when carousel 10 rotates, can drive a plurality of needle mechanisms 20 of rolling up and rotate at coiling station, rubberizing station and unloading station circulation. Fusing structure 30 is disposed between the plurality of needle winding mechanisms 20, and fusing structure 30 is capable of fusing membrane 40 between the winding station and the rubberizing station.

Utilize a plurality of book needle mechanisms 20 to make electric core accomplish the coiling under the drive of carousel 10, rubberizing and unloading, set up fusing structure 30 between a plurality of book needle mechanisms 20, and, when book needle mechanism 20 drove electric core and rotate to the rubberizing station from the coiling station, fusing structure 30 fuses diaphragm 40 between coiling station and rubberizing station, therefore, this coiling mechanism will fuse structure 30 and the integrated setting of book needle mechanism 20, occupation space has been reduced, and, utilize fusing structure 30 to fuse diaphragm 40, the mode is simple, the occupation time is short, the cost is reduced and the efficiency is improved, can satisfy the production demand.

In the present embodiment, as shown in fig. 1, the fusing structure 30 includes a supporting portion 31 and a plurality of fusing portions 32, the supporting portion 31 is connected to the rotating disk 10, and each fusing portion 32 is located between adjacent needle winding mechanisms 20.

Of course, the supporting portion 31 may be provided in plural, and the plural supporting portions 31 and the plural fusing portions 32 may be provided in one-to-one correspondence, so that the fusing portions 32 are individually supported by the supporting portions 31, respectively.

The fusing part 32 is provided in plurality, and the fusing parts 32 are fixed on the rotary disk 10 through the supporting part 31, and the fusing part 32 is located between the adjacent needle rolling mechanisms 20, so that the fusing part 32 is located between the needle rolling mechanism 20 at the winding station and the needle rolling mechanism 20 at the rubberizing station in the rotating process of the rotary disk 10, so as to fuse the membrane 40 by the fusing part 32.

It should be noted that in other embodiments, the supporting portion 31 may be fixedly disposed, and the fusing portion 32 is disposed on the supporting portion 31, so that the fusing portion 32 is located between the winding station and the rubberizing station. Therefore, one fusing part 32 is fixedly arranged between the winding station and the rubberizing station by the fixedly arranged supporting part 31, namely, the fusing part 32 cannot rotate along with the rotation of the rotary table 10, so that the membrane 40 can be fused between the winding station and the rubberizing station by the fusing part 32, and the fusing structure 30 is simpler in structure.

It should be further noted that the supporting portion 31 is fixedly disposed, and in order to dispose the supporting portion 31 separately from the turntable 10, the supporting portion 31 may be supported by a separate supporting structure, so that the supporting portion 31 is located between the plurality of winding needle mechanisms 20, or alternatively, the supporting portion 31 may be rotatably connected to the turntable 10, that is, the supporting portion 31 is fixedly disposed, so that the turntable 10 rotates around the supporting portion 31.

Specifically, in the present embodiment, as shown in fig. 1, three needle winding mechanisms 20 are provided on the rotary disk 10 at regular intervals, correspondingly, three fusing portions 32 are provided on the supporting portion 31, and one fusing portion 32 is provided between adjacent needle winding mechanisms 20.

It should be noted that the turntable 10 drives the three needle winding mechanisms 20 to rotate to positions corresponding to the winding station, the rubberizing station, and the discharging station, respectively, so as to perform winding, rubberizing, and discharging of the battery cell.

It should be noted that the above-mentioned "adjacent needle winding mechanisms 20" refers to two needle winding mechanisms 20 disposed adjacent to each other in the circumferential direction of the rotary disk 10.

Of course, the number of the needle winding mechanisms 20 is not limited to three, and may be other numbers, such as six. The number of needle winding mechanisms 20 can be specifically set as required.

In the present embodiment, the fusing part 32 is a heating wire. The fusing part 32 is set as a heating wire, so that the structure is simple, and the heating process is quick.

Of course, the fusing part 32 may have another structure that can generate heat to fuse the diaphragm 40 by heating.

In the present embodiment, as shown in fig. 1, the supporting portion 31 includes a mounting portion 311 and a protruding portion 312, the center of the mounting portion 311 coincides with the center of the turntable 10, and the fusing portion 32 is located on an end of the protruding portion 312 away from the mounting portion 311.

The fusing part 32 is provided on the end of the projection 312 provided to protrude from the mounting part 311, which facilitates the fitting contact of the fusing part 32 with the diaphragm 40, so as to fuse the diaphragm 40.

As shown in fig. 1, the needle winding mechanism 20 includes a first needle winding portion 21 and a second needle winding portion 22, the first needle winding portion 21 and/or the second needle winding portion 22 is movably disposed, and the first needle winding portion 21 and the second needle winding portion 22 can clamp and wind the septum 40. Specifically, the first needle winding portion 21 includes a first outer needle and a first inner needle, and the second needle winding portion includes a second outer needle and a second inner needle, which are disposed between the first inner needle and the second inner needle for clamping the septum 40, and the outer portions of the first outer needle and the second outer needle are adapted to wrap the septum 40.

Of course, the first scrolling needle part 21 may include only the first inner needle, the second scrolling needle part 22 may include only the second inner needle, the septum 40 is clamped between the first inner needle and the second inner needle, and the septum is wound by the outside of the first inner needle and the second inner needle.

It should be noted that the above-mentioned first needle winding part 21 and/or the second needle winding part 22 can be movably disposed, which means that the first needle winding part 21 can be movably disposed, the second needle winding part 22 can be movably disposed, or both the first needle winding part 21 and the second needle winding part 22 can be movably disposed, so as to realize the movement of the first needle winding part 21 and the second needle winding part 22 approaching to each other or moving away from each other.

The embodiment also provides a specific implementation mode of the winding machine, which comprises the winding device. The winding machine further comprises a rubberizing device and a discharging device, the rubberizing device corresponds to the rubberizing station, and the discharging device corresponds to the discharging station. Utilize carousel 10 to drive a plurality of book needle mechanisms 20 and rotate, make electric core accomplish the coiling in proper order, rubberizing and unloading, set up fusing structure 30 between a plurality of book needle mechanisms 20, and, when book needle mechanism 20 drove electric core and rotate to the rubberizing station from the coiling station, fusing structure 30 fuses diaphragm 40 between coiling station and rubberizing station, therefore, this take-up device is with fusing structure 30 and the integrated setting of book needle mechanism 20, occupation space has been reduced, and, utilize fusing structure 30 to fuse diaphragm 40, the mode is simple, the occupation time is short, the cost is reduced and the efficiency is improved, can satisfy the production demand.

When the winding device of the embodiment is used, the diaphragm 40 is fed to the winding station through the diaphragm feeding device, the winding needle mechanism 20 located at the winding station clamps the diaphragm 40 and winds the diaphragm 40 to form an electric core, after winding is completed, the rotary table 10 rotates to drive the winding needle mechanism 20 located at the winding station to rotate to the rubberizing station, the diaphragm 40 located between the winding station and the rubberizing station is in contact with the fusing part 32, at the moment, the fusing part 32 generates heat to fuse the diaphragm 40, the diaphragm 40 is pasted by the rubberizing device, then, the rotary table 10 rotates to drive the winding needle mechanism 20 located at the rubberizing station to rotate to the blanking station, and blanking is performed on the electric core through the blanking device.

According to the above description, the present patent application has the following advantages:

1. the fusing structure is arranged among the plurality of needle winding mechanisms so as to be integrated with the needle winding mechanisms, and therefore the occupied space is reduced;

2. utilize fusing structure with diaphragm fusing, the mode is simple, and the occupation time is short, and the cost is reduced just has improved efficiency, can satisfy the production demand.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications derived therefrom are intended to be within the scope of the utility model.

Claims

1. A winding device, comprising:

a turntable (10);

the needle winding mechanisms (20) are arranged on the rotary table (10) and are arranged at intervals along the circumferential direction of the rotary table (10), and the needle winding mechanisms (20) are suitable for being driven by the rotary table (10) to rotate circularly at a winding station, a rubberizing station and a blanking station;

a fusing structure (30) disposed between the plurality of needle winding mechanisms (20), the fusing structure (30) adapted to fuse the membrane (40) between the winding station and the taping station.

2. Winding device according to claim 1, wherein the fusing structure (30) comprises a support portion (31) and a plurality of fusing portions (32), the support portion (31) being connected to the turntable (10), each fusing portion (32) being located between adjacent winding pin mechanisms (20).

3. Winding device according to claim 2, wherein three winding needle mechanisms (20) are arranged on the turntable (10) at regular intervals, and one fusing part (32) is arranged between each two adjacent winding needle mechanisms (20).

4. Winding device according to claim 2, characterized in that the fusing part (32) is a heating wire.

5. Spooling device according to claim 2, characterized in that the support part (31) comprises a mounting part (311) and a protruding part (312), the centre of the mounting part (311) coinciding with the centre of the turntable (10), the fusing part (32) being located on the end of the protruding part (312) remote from the mounting part (311).

6. Spooling device according to any of the claims 1-5, characterized in that the needle winding mechanism (20) comprises a first needle winding part (21) and a second needle winding part (22), the first needle winding part (21) and/or the second needle winding part (22) is movably arranged, and the septum (40) can be clamped and wound between the first needle winding part (21) and the second needle winding part (22).

7. Spooling device as claimed in claim 6, characterized in that the first spooling part (21) comprises a first outer needle and a first inner needle, the second spooling part (22) comprises a second outer needle and a second inner needle, the first inner needle and the second inner needle are adapted to grip the septum (40) between them, the outer of the first outer needle and the second outer needle are adapted to wrap the septum (40).

8. Winding device according to claim 2, wherein the support (31) is fixedly arranged, and wherein the support (31) is provided with one of the fusing portions (32), the fusing portion (32) being adapted to be positioned between the winding station and the taping station.

9. A winding machine, characterized in that it comprises a winding device according to any one of claims 1 to 8.

10. Spooling machine as defined in claim 9, further comprising a taping device and a blanking device.