WO2020223953A1

WO2020223953A1 - Winding device

Info

Publication number: WO2020223953A1
Application number: PCT/CN2019/086160
Authority: WO
Inventors: 黄森; 呙德红; 谭国彪; 宗勇
Original assignee: 深圳市诚捷智能装备股份有限公司
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-11-12
Also published as: CN110268564A

Abstract

Disclosed in the present invention is a winding device, comprising a rack, a separator feeding apparatus, and a winding apparatus, the separator feeding apparatus and the winding apparatus both being arranged on the rack. The separator feeding apparatus comprises a separator loading mechanism and a separator pulling mechanism, respectively arranged on two opposing sides of the winding apparatus, the separator loading mechanism being used to supply a separator. The separator pulling mechanism is used to clamp the separator, and is able to move towards or away from the separator loading mechanism, so as to pull the separator in the separator loading mechanism out a certain distance. The winding apparatus comprises a winding needle mechanism, a first winding needle driving mechanism, and a second winding needle driving mechanism, the winding needle mechanism comprising a first winding needle and a second winding needle. The first winding needle driving mechanism is connected to the first winding needle, and is able to drive the first winding needle to move axially, so as to cause the first winding needle to be near to or distant from the second winding needle. The second winding needle driving mechanism is connected to the second winding needle, and is able to drive the second winding needle to move axially, so as to cause the second winding needle to be near to or distant from the first winding needle.

Description

Winding equipment

Technical field

The invention relates to the technical field of battery winding, in particular to a winding device.

Background technique

The winding needle mechanism used in the existing battery winding equipment usually includes two overlapping winding needles, and the two winding needles are synchronized or separated in the axial direction to expand or retract, so as to realize the extension or retraction of the winding needle. The two coiling needles first clamp the two diaphragms for pre-coiling, and then insert the positive electrode sheet and the negative electrode sheet between the two diaphragms for winding, and finally form a battery.

technical problem

On the one hand, in the needle winding structure of the prior art, when the needle is drawn, the part of the diaphragm in contact between the battery core and the winding needle is easily taken out by the winding needle, which leads to the phenomenon of core pulling and seriously affects the winding quality of the battery; On the one hand, this kind of battery winding equipment in the prior art must be equipped with two sets of diaphragm feeding devices to transport the two diaphragms respectively, resulting in a relatively complicated structure of the winding equipment and high cost.

Technical solutions

The technical problem to be solved by the present invention is to provide a winding device, which can not only improve the winding quality of the battery, but also simplify the structure of the winding device and reduce the manufacturing cost.

In order to solve the above technical problems, the technical solutions adopted by the present invention are:

A winding device, comprising: a frame, a diaphragm feeding device and a winding device, the diaphragm feeding device and the winding device are both arranged on the frame; the diaphragm feeding device includes a diaphragm feeding mechanism and A diaphragm pulling mechanism, the diaphragm feeding mechanism and the diaphragm pulling mechanism are respectively arranged on opposite sides of the winding device, the diaphragm feeding mechanism is used for conveying the diaphragm; the diaphragm pulling mechanism is used for The diaphragm is clamped and can be moved in a direction close to or away from the diaphragm feeding mechanism to pull the diaphragm in the diaphragm feeding mechanism for a certain distance; the winding device includes a needle winding mechanism, a first A needle winding drive mechanism and a second needle winding drive mechanism, the needle winding mechanism includes a first needle winding and a second needle winding; the first needle winding drive mechanism is connected to the first needle winding and is used to drive the needle The first winding needle moves axially so that the first winding needle is close to or away from the second winding needle; the second winding needle driving mechanism is connected to the second winding needle and is used to drive the The second winding needle moves axially so that the second winding needle is close to or away from the first winding needle, and the diaphragm feeding mechanism can be clamped when the first winding needle and the second winding needle are close to each other And the diaphragm between the diaphragm pulling mechanism; the movement direction of the first winding needle and the second winding needle are opposite to each other.

Beneficial effect

Implementing the embodiments of the present invention will have the following beneficial effects:

In the above-mentioned winding device, the first winding needle and the second winding needle of the needle winding mechanism are designed separately. They are close to each other in the axial direction to realize the closing of the needle winding mechanism, and the two are away from each other in the axial direction to realize the needle winding mechanism. This design simplifies the structure of the needle winding mechanism and reduces the difficulty of production; and when the needle is withdrawn, the movement directions of the first needle and the second needle are opposite, which can effectively avoid the phenomenon of core pulling and improve the battery winding Winding quality; and the winding device of the present invention divides the diaphragm feeding device into a diaphragm feeding mechanism and a diaphragm pulling mechanism. The diaphragm feeding mechanism and the diaphragm pulling mechanism are located on opposite sides of the winding device. When the winding needle mechanism is closed It can clamp the diaphragm between the diaphragm feeding mechanism and the diaphragm pulling mechanism. When winding, the needle winding mechanism can fold the diaphragm into two layers for winding, which ensures that there are two layers of diaphragm in the wound cell. The overall structure of the winding device is simplified.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

among them:

Figure 1 is a front view of a winding device according to an embodiment of the invention;

Figure 2 is a rear view of a winding device according to an embodiment of the present invention;

3 is a schematic diagram of the structure of a diaphragm feeding device according to an embodiment of the present invention;

4 is a schematic structural diagram of a diaphragm pulling mechanism according to an embodiment of the present invention;

Fig. 5 is a schematic structural view of another view of the diaphragm pulling mechanism according to an embodiment of the present invention;

6 is a schematic structural diagram of a diaphragm pulling mechanism according to another embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a winding device according to an embodiment of the present invention;

Fig. 8 is a partial structural diagram of the winding device shown in Fig. 7;

FIG. 9 is a structural schematic diagram of the transfer structure, the first limiting member and the second limiting member in the winding device shown in FIG. 7;

10 is a schematic structural diagram of a first pole piece feeding device according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a scissors clip device according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a glue applicator according to an embodiment of the present invention;

Fig. 13 is a schematic structural diagram of a blanking device according to an embodiment of the present invention.

Embodiments of the invention

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

1 and 2, the present invention provides a winding device, the winding device includes a frame 100 and a first pole piece discharging device 1000, a first pole piece feeding device 400, and a first pole piece feeding device 1000 arranged on the frame. The two-pole piece feeding device 1200, the second pole piece feeding device 500, the diaphragm feeding device 1100, the diaphragm feeding device 300, and the winding device 200. The first pole piece discharge device 1000 and the second pole piece discharge device 1200 are respectively disposed on opposite sides of the winding device 200. Among them, the first pole piece discharge device 1000 is used for unwinding the positive electrode sheet; the first pole piece feeding device 400 is arranged between the first pole piece discharge device 1000 and the winding device 200, and is used for unwinding the positive electrode sheet It is sent to the winding device 200. The second pole piece discharge device 1200 is used for unwinding the negative sheet; the second pole piece feeding device 500 is arranged between the second pole piece discharge device 1200 and the winding device 200, and is used for feeding the negative sheet In the winding device 200. The diaphragm discharge device 1100 is disposed between the first pole piece discharge device 1000 and the second pole piece discharge device 1200, and is used for unwinding the diaphragm. The diaphragm feeding device 300 is disposed between the diaphragm discharging device 1100 and the winding device 200 and is used to feed the diaphragm into the winding device 200. The winding device 200 can clamp the separator, the positive electrode sheet and the negative electrode sheet, and wind the three together to form a battery core.

1 and 3, the diaphragm feeding device 300 in the winding device includes a diaphragm feeding mechanism 310 and a diaphragm pulling mechanism 320. The diaphragm feeding mechanism 310 and the diaphragm pulling mechanism 320 are located opposite to the winding device 200. On both sides. The diaphragm feeding mechanism 310 can receive the diaphragm in the diaphragm discharging device 1100 and convey the diaphragm to the winding device 200; the diaphragm pulling mechanism 320 is used to clamp the diaphragm in the diaphragm feeding mechanism 310, and can move closer to or away from the diaphragm. The direction of the feeding mechanism 310 is moved to pull the diaphragm in the diaphragm feeding mechanism 310 for a certain distance; the diaphragm feeding mechanism 310 and the diaphragm pulling mechanism 320 are respectively disposed on opposite sides of the winding device 200.

For the winding device of this embodiment, the diaphragm feeding device 300 is divided into a diaphragm feeding mechanism 310 and a diaphragm pulling mechanism 320. The diaphragm feeding mechanism 310 and the diaphragm pulling mechanism 320 are respectively located on opposite sides of the winding device 200. , The needle winding mechanism 210 can clamp the middle of the diaphragm drawn by the diaphragm pulling mechanism 320, so that the winding device 200 can fold the drawn diaphragm into two layers for winding during winding, which ensures the winding There are two layers of diaphragms in the wound cell. On the other hand, only one diaphragm discharging device 1100 and diaphragm feeding device 300 are required, which greatly simplifies the overall structure of the winding device.

As shown in FIG. 3, the diaphragm feeding mechanism 310 includes a diaphragm carrying table 311, a diaphragm pressing roller 312, and a diaphragm pressing member 313. A diaphragm transmission channel for the diaphragm to pass through is formed between the diaphragm carrying table 311 and the diaphragm pressing roller 312 One end of the diaphragm holding member 313 is rotatably arranged on the frame 100, and the other end of the diaphragm holding member 313 is used to press the diaphragm on the diaphragm carrying platform 311 by gravity. The other end of the diaphragm holding member 313 is provided with a roller, which can prevent the diaphragm holding member 313 from damaging the diaphragm.

In one embodiment, the diaphragm feeding mechanism 310 further includes a diaphragm stop component 314 and a diaphragm cutter component 315. The diaphragm stop component 314 can move in a direction approaching or away from the diaphragm holding member 313 to press the diaphragm 313 is pressed on the diaphragm bearing table 311 or the diaphragm holding member 313 is loosened; the diaphragm cutter assembly 315 includes a cutter cylinder 3151 and a cutter 3152. The cutter cylinder 3151 can drive the cutter 3152 to expand and contract, and the direction of the expansion of the cutter 3152 It is perpendicular to the diaphragm carrying table 311 and is used to cut the diaphragm.

The diaphragm stop assembly 314 includes a stop cylinder 3141 and a stop pressure block 3142. The output end of the stop cylinder 3141 is connected to the stop pressure block 3142 for driving the stop pressure block 3142 to approach or move away from the diaphragm holding member 313. When the diaphragm needs to be cut off, the anti-return cylinder 3141 extends, and the anti-return pressure block 3142 abuts against the diaphragm holding part 313, thereby pressing the diaphragm between the diaphragm holding part 313 and the diaphragm bearing platform 311, preventing the shearing process The diaphragm is offset.

As shown in FIGS. 3 to 5, in this embodiment, the diaphragm pulling mechanism 320 includes a first fixed seat 321, a first sliding seat 322, a first clamping module 323, and a first moving module 324. The fixing base 321 is connected to the frame 100, the first sliding base 322 is slidably arranged on the first fixing base 321, the first clamping mechanism is arranged on the first sliding base 322, and the first clamping module 323 can be clamped or loosened When the diaphragm is opened, the first moving module 324 can drive the first sliding seat 322 to move relative to the first fixed seat 321, so that the first clamping module 323 drives the diaphragm to move.

In one embodiment, the first clamping module 323 includes a first clamping 3231, a second clamping 3232, and a clamping driving assembly 3233. The first material clamp 3231 and the second material clamp 3232 are rotatably arranged on the first sliding seat 322, and the first material clamp 3231 and the second material clamp 3232 are both connected with the material clamp driving assembly 3233.

In one embodiment, the first moving module 324 includes a first driving component 3241, a second driving component 3242, and a first connecting member 3243. The first connecting member 3243 is connected to the sliding seat. The first driving assembly 3241 can abut against the first connecting member 3243 and drive the first connecting member 3243 to move relative to the first fixing seat 321, so that the first connecting member 3243 drives the first sliding seat. The base 322 moves relative to the first fixed base 321. The second driving assembly 3242 can abut against the first connecting member 3243 and drive the first connecting member 3243 to move relative to the first fixing base 321, so that the first connecting member 3243 drives the first sliding base 322 to move relative to the first fixing base 321.

The first driving assembly 3241 includes a first driving part 32411 and a first moving part 32412. The first driving part 32411 is connected to the first moving part 32412, and the first driving part 32411 can drive the first moving part 32412 to move relative to the first fixing base 321, so that the first moving part 32412 abuts and drives the first connecting part 3243 The first connecting member 3243 moves relative to the first fixing base 321.

In an embodiment, the second driving component 3242 includes a second driving part 32421, a second moving part 32422 and a third moving part 32423. The second driving part 32421 is connected to the second moving part 32422, and the second moving part 32422 passes through the first connecting part 3243 and is connected to the third moving part 32423. The second driving member 32421 can drive the third moving member 32423 to move relative to the fixed base through the second moving member 32422, so that the third moving member 32423 abuts the first connecting member 3243 and drives the first connecting member 3243 to move relative to the fixed base.

As shown in FIG. 6, in another embodiment, the first moving module 324 only includes the first driving component 3241 and the first connecting member 3243. The first driving assembly 3241 is connected with the first connecting member 3243, and the first connecting member 3243 is connected with the first sliding seat 322. The first driving assembly 3241 can drive the first connecting member 3243 to move relative to the first fixing base 321, so that the first connecting member 3243 drives the first sliding base 322 to move relative to the first fixing base 321.

As shown in FIGS. 7-9, the winding device 200 includes a needle winding mechanism 210, a first needle winding drive mechanism 220, a second needle winding drive mechanism 230, and a third needle winding drive mechanism 240, wherein the needle winding mechanism 210 includes The first winding needle 211 and the second winding needle 212, the first winding needle drive mechanism 220 is connected with the first winding needle 211, the first winding needle driving mechanism 220 can drive the first winding needle 211 to move axially, so that the first winding The needle 211 is close to or far away from the second winding needle 212, the second winding needle driving mechanism 230 is connected with the second winding needle 212, and the second winding needle driving mechanism 230 can drive the second winding needle 212 to move axially to make the second winding needle 212 is close to or far away from the first winding needle 211. Under the action of the first winding needle driving mechanism 220 and the second winding needle driving mechanism 230, the first winding needle 211 and the second winding needle 212 can approach and overlap each other to clamp Pole piece and diaphragm. The movement directions of the first winding needle 211 and the second winding needle 212 are opposite when they approach each other and when they move away from each other. The third winding needle driving mechanism 240 is connected to both the first winding needle 211 and the second winding needle 212, and the third winding needle driving mechanism 240 can drive the first winding needle 211 and the second winding needle 212 to rotate synchronously to realize the pole piece and The winding of the diaphragm eventually forms a battery.

For the winding device of this embodiment, the first winding needle 211 and the second winding needle 212 are of separate design. They are close to each other in the axial direction to realize the closing of the needle winding mechanism 210, and the two are away from each other in the axial direction. The opening of the needle winding mechanism 210 is realized. This design simplifies the structure of the needle winding mechanism 210 and reduces the production difficulty, so that the production cost of the entire battery winding machine can also be reduced.

In order to improve the toughness and endurance of the first winding needle 211 and the second winding needle 212, the needle winding mechanism 210 also includes a needle nozzle seat 213, which is provided with the first winding needle 211 and the second winding needle 212. Pinholes. The needle winding mechanism 210 further includes a first extension shaft 214, a first sleeve 215, a second extension shaft 216, and a second sleeve 217. The first extension shaft 214 is connected to the first winding needle 211, and the first sleeve 215 is sleeved On the first extension shaft 214, the first extension shaft 214 is rotatably connected with the first winding drive mechanism 220. The first winding drive mechanism 220 can drive the first extension shaft 214 to move axially relative to the first sleeve 215, The shaft sleeve 215 is connected to the third winding needle driving mechanism 240, and the third winding needle driving mechanism 240 can drive the first shaft sleeve 215 to rotate to drive the first extension shaft 214 and the first winding needle 211 to rotate.

It is easy to understand that one of the first extension shaft 214 and the first sleeve 215 is provided with a strip hole extending in the axial direction, and the other of the first extension shaft 214 and the first sleeve 215 is provided with A limit block inserted in the strip hole. The mating manner of the second extension shaft 216 and the second sleeve 217 is the same, and will not be repeated here.

The first winding needle driving mechanism 220 includes a first winding needle driving member 221, a first sliding block 222 and a first guide rail 223. The first winding needle driving member 221 is connected to the first sliding block 222, and the first sliding block 222 is slidably arranged on The first guide rail 223 is connected to the first winding needle 211 through the first extension shaft 214. Both the first extension shaft 214 and the first winding needle 211 can rotate relative to the first slider 222. The extension direction of the first guide rail 223 The axial direction of the first winding needle 211 is consistent.

The second winding needle driving mechanism 230 includes a second winding needle driving member 231, a second sliding block 232, and a second guide rail 233. The second winding needle driving member 231 is connected to the second sliding block 232, and the second sliding block 232 is slidably arranged on The second guide rail 233 is connected to the second winding needle 212 through the second extension shaft 216. Both the second extension shaft 216 and the second winding needle 212 can rotate relative to the second slider 232. The extension direction of the second guide rail 233 The axial direction of the second winding needle 212 is consistent.

Further, the second winding needle driving mechanism 230 further includes a movable shaft 234 and an adapter structure 235. The movable shaft 234 is connected with the second sliding block 232. The axial direction of the movable shaft 234 is parallel to the axial direction of the second winding needle 212. The 234 is connected to the second extension shaft 216 through the transfer structure 235, and both the movable shaft 234 and the second extension shaft 216 can rotate relative to the transfer structure 235. Specifically, the adapter structure 235 includes a swing arm and a fixed seat. One end of the swing arm is connected to the movable shaft 234, and the other end is connected to the second extension shaft 216. Both the movable shaft 234 and the second extension shaft 216 can rotate relative to the swing arm. , The middle part of the swing arm is rotatably connected with the fixed seat.

As shown in Figure 9, the second needle winding drive mechanism 230 further includes a first limiting member 236 and a second limiting member 237. The first limiting member 236 and the second limiting member 237 are both connected to the fixing base, and the first The limiting member 236 and the second limiting member 237 are respectively located on both sides of the rotating shaft 421 of the swing arm, and both the first limiting member 236 and the second limiting member 237 can abut the swing arm to restrict the swing arm from rotating The maximum angle of, also limits the maximum distance that the second winding needle 212 can stretch. Specifically, when the swing arm abuts the first limiting member 236, the second winding needle 212 has been fully extended. When the swing arm abuts the second limiting member 237, the second winding needle 212 has been completely retracted.

As shown in FIG. 8, the third needle reel driving mechanism 240 includes a third needle reel driver 241, a transmission shaft 242, a first transmission component 243, a second transmission component 244, and a third transmission component 245. 241 is connected to the transmission shaft 242 through the first transmission component 243, the transmission shaft 242 is connected to the first winding needle 211 through the second transmission component 244, the transmission shaft 242 is connected to the second winding needle 212 through the third transmission component 245, and the transmission shaft 242 The axial direction of is parallel to the axial direction of the first winding needle 211.

In this embodiment, the transmission shaft 242 is sleeved on the movable shaft 234, the movable shaft 234 can move axially relative to the transmission shaft 242, and the transmission shaft 242 can rotate relative to the movable shaft 234. Such a structural design can reduce the volume of the winding device.

As shown in FIG. 1, the first pole piece feeding device 400 and the second pole piece feeding device 500 are respectively arranged on opposite sides of the diaphragm feeding device 300. The winding device 200 first winds the diaphragm for a certain distance to form a pre-roll. At this time, there is a section of separator between the pre-rolled body and the separator feeding mechanism 310, and another section of separator is placed between the pre-rolled body and the separator pulling mechanism 320, and then the first pole piece feeding device 400 sends the positive electrode sheet into the pre-rolled body. Between the separator and one section of the separator, the second pole piece feeding device 500 feeds the negative electrode piece between the pre-rolled body and the other section of the separator, and relies on the force of the separator to wind the positive electrode and the negative electrode between the separator and the separator. , So that the battery cells wound in the winding device 200 are sequentially stacked in the order of the positive electrode sheet, the separator, the negative electrode sheet, and the separator.

As shown in Figure 10, the first pole piece feeding mechanism includes a third fixed seat 410, a swing assembly 420, a first pinch roller 430, a second pinch roller 440, and a third drive assembly 450. The third fixed seat 410 is slidably arranged on the machine. On the frame 100, the first pinch roller 430 and the swing assembly 420 are both rotatably arranged on the third fixing base 410, the second pinch roller 440 is rotatably arranged on the swing assembly 420, and the first pinch roller 430 and the second pinch roller 440 A transmission channel for the pole piece to pass through is formed. The third drive assembly 450 resists the swing assembly 420, and the third drive assembly 450 can drive the swing assembly 420 to swing relative to the third fixing base 410 to drive the second pinch roller 440 toward Move in a direction close to the first pinch roller 430 so that the pole piece is clamped and fixed between the first pinch roller 430 and the second pinch roller 440.

10 and 11, further, the swing assembly 420 includes a rotating shaft 421, a swinging member 422 and a connecting arm 423, the rotating shaft 421 is arranged on the third fixing base 410, the swinging member 422 is rotatably sleeved on the rotating shaft 421, The two pinch rollers 440 are rotatably arranged on the swinging member 422, and the connecting arm 423 is arranged on the swinging member 422 and resists the driving assembly. The driving assembly can drive the swinging member 422 through the connecting arm 423 to move the swinging member 422 relative to the third fixing base 410 around the shaft 421 It swings in the axial direction to drive the second pinch roller 440 to move toward the first pinch roller 430 so that the pole piece is clamped and fixed between the first pinch roller 430 and the second pinch roller 440.

In one embodiment, the third driving assembly 450 includes a driving shaft 451 and a first transmission arm 452. The driving shaft 451 is erected above the third fixing base 410, and the first transmission arm 452 is disposed at one end of the driving shaft 451 and connected with When the swing assembly 420 is resisted, the drive shaft 451 can drive the first transmission arm 452 to swing around the axis of the drive shaft 451 to drive the swing assembly 420 to swing relative to the third fixing base 410, thereby driving the second nip roller 440 toward the first clamp The direction of the roller 430 moves. In this embodiment, the first transmission arm 452 resists the connecting arm 423.

The first pole piece feeding device 400 further includes a pole piece carrying table 460, a pole piece holding member 470, and a receiving roller 480. The pole piece carrying table 460 is connected to the third fixing seat 410, and the pole piece carrying table 460 is located in the first clamp. Downstream of the roller 430, a pole piece holding member 470 is rotatably arranged on the swing assembly 420, and the pole piece holding member 470 is used to hold the pole piece on the pole piece supporting table 460 by gravity. The receiving roller 480 is rotatably arranged on the base and located at one end of the transmission channel. The receiving roller 480 is used to guide the transmission of the pole piece along the transmission channel to reduce the jitter generated when the pole piece passes through the transmission channel.

The first pole piece feeding device 400 also includes a feeding drive member 4130 and a fifth transmission assembly 4140. The feeding drive member 4130 is connected to the third fixing base 410 through the fifth transmission assembly 4140. The feeding drive member 4130 can drive the third fixing base 410 to The frame 100 moves on, and the moving direction is close to or away from the winding device 200. When the feeding driving member 4130 drives the third fixing base 410 to move toward the direction close to the winding device 200, the pole piece can be fed into the winding device 200; the feeding driving member 4130 drives the third fixing base 410 to move away from the winding device 200 When moving in the direction, it can return with the pole piece.

The structure of the second pole piece feeding device 500 is the same as that of the first pole piece feeding device 400, which will not be repeated here.

As shown in FIG. 1 and FIG. 11, the winding device further includes a scissors clip device 600, which is arranged behind the frame 100, and a through hole is provided on the frame 100 at a position corresponding to the winding device 200. The scissor clip device 600 includes a scissor clip mechanism, a fourth drive assembly 620 and a fifth drive assembly 630. The scissor clip mechanism includes a first clip 611 and a second clip 612, the first clip 611 and the second clip 612 are hinged; The fourth drive assembly 620 is used to drive the scissor clip mechanism to move so that the scissor clip mechanism passes through the through hole from the back of the frame 100 to the front of the frame 100, so that the pole pieces are located at the first clip 611 and the second clip 612 Between; the fifth drive assembly 630 is used to drive the second shear 612 relative to the first shear 611 to cut off the pole piece located between the first shear 611 and the second shear 612.

In one embodiment, the number of scissors clip mechanisms is two, the two scissors clip mechanisms are the first scissors clip mechanism 610 and the second scissors clip mechanism 640, and the fourth drive assembly 620 simultaneously drives the first scissors clip mechanism 610 and The second scissors clip mechanism 640 moves, so that the positive sheet is located between the first scissors 611 of the first scissors clip mechanism 610 and the second scissors 612 of the first scissors clip mechanism 610, and the negative sheet is located on the second scissors clip Between the first scissors 611 of the mechanism 640 and the second scissors 612 of the second scissors clip mechanism 640. The fifth drive assembly 630 is used to drive the second scissor 612 of the first scissor clip mechanism 610 to rotate so that the first scissor clip mechanism 610 can cut the positive electrode sheet, and the fifth drive assembly 630 is also used to drive the second scissor clip mechanism 640 The second clip 612 rotates to enable the second clipper mechanism 640 to cut the negative electrode piece.

In an embodiment, the scissor clip device 600 further includes a fourth transmission assembly 650, the fourth transmission assembly 650 is connected between the fifth drive assembly 630 and the swing assembly 420, and the fifth drive assembly 630 drives the second support shears 612 relative to each other. When the first clip 611 rotates to cut the pole piece located between the first clip 611 and the second clip 612, the fifth drive assembly 630 can drive the swing assembly 420 to swing through the fourth transmission assembly 650 to drive the second clip The roller 440 moves in a direction close to the first pinch roller 430 so that the pole piece is clamped and fixed between the first pinch roller 430 and the second pinch roller 440. Specifically, in this embodiment, the fourth transmission assembly 650 is connected to the second transmission arm 453 of the swing assembly 420. The second transmission arm 453 is connected to the other end of the drive shaft 451. Therefore, in this embodiment, when the scissors clamp device 600 cuts the pole piece, the first pinch roller 430 and the second pinch roller 440 can fix the pole piece, the pole piece is placed offset, the drive of the scissors clip mechanism and the pole piece The driving of the sheet pressing is the same, and the structure is simpler.

As shown in Figures 1 and 12, the winding equipment also includes a glue applicator 700 arranged on the frame 100. The glue applicator 700 includes a fourth fixing seat 760, a glue feeding mechanism 710, a glue pressing mechanism 720, and a glue cutting device. The mechanism 730 and the glue taking mechanism 740, the fourth fixing base 760 is connected to the frame 100, and the fourth fixing base 760 is perpendicular to the frame 100. The glue feeding mechanism 710, the glue pressing mechanism 720, the glue cutting mechanism 730 and the glue taking mechanism 740 are all arranged on the fourth fixing seat 760. The glue feeding mechanism 710 can clamp the adhesive tape and move along the glue feeding direction to pull out the adhesive tape; the glue pressing mechanism 720 can press the adhesive tape pulled out by the delivery mechanism; the glue cutting mechanism 730 is used to connect the glue feeding mechanism 710 and the glue pressing mechanism The adhesive tape between 720 is cut; the glue taking mechanism 740 includes a glue taking drive and a glue wheel 742. The glue taking drive can drive the glue wheel 742 to move between the glue taking position and the glue position, and the glue taking wheel 742 is on There is a first vacuum hole for sucking the tape. When the glue taking wheel 742 is at the glue taking position, it can suck the tape cut by the glue cutting mechanism 730, and when the glue taking wheel 742 is at the glue sticking position, it can stick the tape to the battery core wound by the winding device 200. The rubber removal wheel 742 of this embodiment is rotatable. During the glue application process, the rubber removal wheel 742 is close to the battery core and can rotate together with the rotation of the battery, so that the adhesive tape on the rubber removal wheel 742 is completely pasted on On the battery. Understandably, the winding device also includes a vacuum generator (not shown in the figure) and a controller (not shown in the figure). The vacuum generator is connected to the rubber picking wheel 742 so that the first vacuum hole can be in a vacuum state. Switch between and non-vacuum state. The controller is electrically connected with the driving parts and the vacuum generator, and the controller can control the driving parts and the vacuum generator to cooperate to complete the glue application.

The glue sticking mechanism in the prior art first sticks glue on the electric core and then cuts the glue. Due to the pulling effect of the tape, the electric core is tightened twice, which easily causes the electric core to pull the core. However, the adhesive applicator 700 of this embodiment can cut the adhesive tape first, and then attach the cut adhesive tape to the cell by the adhesive picking wheel 742, which can effectively prevent the adhesive tape from re-tightening the cell.

Further, in an embodiment, the glue sticking device 700 further includes a glue sucking mechanism 750. The glue sucking mechanism 750 includes a glue sucking driving member and a glue sucking part connected to each other. The glue sucking part is provided with a second glue sucking tape. A vacuum hole (not shown in the figure), and the second vacuum hole is connected to the vacuum generator. The glue sucking driving member can drive the glue sucking part to move, so that the glue sucking part can transfer the cut tape to the rubber picking wheel 742.

As shown in Figures 1 and 13, the winding equipment also includes a blanking device 800 and a conveying device 900. The blanking device 800 is arranged between the winding device 200 and the conveying device 900. The grasping assembly 820, the first rotating drive assembly 830 and the second rotating drive assembly 840, the winding device 200, the conveying device 900, the first grasping assembly 810, the second grasping assembly 820, the first rotating drive assembly 830 and the second The two rotating drive components 840 are both installed on the frame 100. The first grabbing assembly 810 is used to grab the battery core from the winding device 200 and is rotatably arranged on the frame 100; the output end of the first rotation driving assembly 830 is connected to the first grabbing assembly 810 and is used for driving The first grabbing assembly 810 rotates from the first position to the second position, so that the first grabbing assembly 810 transfers the batteries in the winding device 200 to the second grabbing assembly 820 (of course, the first rotation The driving component 830 can also drive the first grabbing component 810 to rotate back to the first position from the second position); the second grabbing component 820 is used to grab the battery core from the first grabbing component 810; the second rotating drive component The output end of the 840 is connected to the second grasping assembly 820, and is used to drive the second grasping assembly 820 to rotate from the third position to the fourth position, so that the second grasping assembly 820 places the cells on the transmission device 900 Up (Of course, the second rotating drive assembly 840 can also drive the second grabbing assembly 820 to rotate back from the fourth position to the third position). Specifically, when the first grasping assembly 810 is in the first position, it can clamp the battery core from the winding device 200; when the first grasping assembly 810 is rotated to the second position, the clamped battery core can be sent into In the second grabbing component 820. When the second grabbing assembly 820 is located at the third position, the battery can be clamped from the first grabbing assembly 810; when the second grabbing assembly 820 is rotated to the fourth position, the battery can be placed in the transfer device 900.

The unloading device 800 of this embodiment adopts a rotatable first grabbing assembly 810 and a second grabbing assembly 820, which can automatically transfer the battery core in the winding device 200 to the conveying device 900, which can completely replace manual operation , The degree of automation of cell transfer is improved, and the positive and negative poles of the cells transferred to the transmission device 900 can be kept consistent, and the risk of cell damage can also be reduced. In addition, the blanking device 800 adopts two sets of grasping components, and the transfer action of the battery is performed in two stages, which can make the overall layout of the structure more reasonable and reduce the space required by the blanking device 800.

In one embodiment, the rotation angle of the first grasping assembly 810 from the first position to the second position is 90°, and the rotation angle of the second grasping assembly 820 from the third position to the fourth position is 90°. In other words, the battery core rotates 180° from the winding device 200 to the conveyor belt. Moreover, the first grabbing assembly 810 and the second grabbing assembly 820 of this embodiment rotate in the same plane. Of course, in other embodiments, the first grabbing assembly 810 and the second grabbing assembly 820 can rotate in different planes, which can be determined according to the different layouts of the winding device 200 and the conveying device 900.

The first grasping assembly 810 includes a first clamping jaw cylinder 811 and a first clamping jaw 812. The output end of the first clamping jaw cylinder 811 is connected to the first clamping jaw 812 and is used to drive the first clamping jaw 812 to open and close. When a clamping jaw 812 is closed, the battery can be clamped; when the first clamping jaw 812 is opened, the battery can be released.

The second gripping assembly 820 includes a second clamping jaw cylinder 821 and a second clamping jaw 822. The output end of the second clamping jaw cylinder 821 is connected to the second clamping jaw 822 and is used to drive the second clamping jaw 822 to open and close. When the second clamping jaw 822 is closed, it can clamp the battery; when the second clamping jaw 822 is opened, it can release the battery.

The above are only the embodiments of the present invention and do not limit the scope of the present invention. Any equivalent transformations made using the content of the description and drawings of the present invention, or directly or indirectly applied in related technical fields, are included in the same way Within the scope of patent protection of the present invention.

Claims

A winding device, characterized by comprising: a frame, a diaphragm feeding device and a winding device, the diaphragm feeding device and the winding device are both arranged on the frame;

The diaphragm feeding device includes a diaphragm feeding mechanism and a diaphragm pulling mechanism, the diaphragm feeding mechanism and the diaphragm pulling mechanism are respectively arranged on opposite sides of the winding device, and the diaphragm feeding mechanism is used for Conveying the diaphragm; the diaphragm pulling mechanism is used to clamp the diaphragm, and can move in a direction close to or away from the diaphragm feeding mechanism to pull the diaphragm in the diaphragm feeding mechanism for a certain distance;

The winding device includes a needle winding mechanism, a first needle winding drive mechanism and a second needle winding drive mechanism. The needle winding mechanism includes a first needle winding and a second needle winding; the first needle winding drive mechanism and the The first winding needle is connected and used to drive the first winding needle to move axially so that the first winding needle is close to or away from the second winding needle; the second winding needle driving mechanism is connected to the The second winding needle is connected and used to drive the second winding needle to move axially so that the second winding needle is close to or away from the first winding needle, and the first winding needle and the second winding needle When they are close to each other, the diaphragm between the diaphragm feeding mechanism and the diaphragm pulling mechanism can be clamped; the movement direction of the first winding needle and the second winding needle are opposite when they are away from each other.
The winding device according to claim 1, wherein the winding device further comprises a third winding needle driving mechanism, the third winding needle driving mechanism and the first winding needle and the second winding The needles are connected, and the third winding needle driving mechanism can drive the first winding needle and the second winding needle to rotate synchronously.
The winding device of claim 2, wherein the needle winding mechanism further comprises a first extension shaft, a first sleeve, a second extension shaft, and a second sleeve, the first extension shaft and the The first winding needle is connected, the first shaft sleeve is sleeved on the first extension shaft, the first extension shaft is rotatably connected with the first winding needle driving mechanism, and the first winding driving mechanism can drive The first extension shaft moves axially relative to the first shaft sleeve, the first shaft sleeve is connected to the third needle reel driving mechanism, and the third needle reel driving mechanism can drive the first shaft The sleeve rotates to drive the first extension shaft and the first winding needle to rotate;

The second extension shaft is connected with the second winding needle, the second shaft sleeve is sleeved on the second extension shaft, the second extension shaft is rotationally connected with the second winding needle drive mechanism, the The second needle reel driving mechanism can drive the second extension shaft to move axially relative to the second shaft sleeve, the second shaft sleeve is connected with the third needle reel driving mechanism, and the third needle reel drives The mechanism can drive the second shaft sleeve to rotate to drive the second extension shaft and the second winding needle to rotate.
The winding device according to claim 2, wherein the second winding needle driving mechanism comprises a second winding needle driving member, a movable shaft, and an adapter structure, and the second winding needle driving member is close to the first A winding needle setting, the second winding needle driving member is connected to the movable shaft and used to drive the movable shaft to move axially, and the axial direction of the movable shaft is parallel to the axial direction of the second winding needle , The movable shaft is connected to the second winding needle through the adapter structure, and both the movable shaft and the second winding needle can rotate relative to the adapter structure.
The winding device according to claim 4, wherein the third reel driving mechanism comprises a third reel driving member, a transmission shaft, a first transmission component, a second transmission component, and a third transmission component, so The transmission shaft is sleeved outside the movable shaft, the third reel driving member is connected to the transmission shaft through the first transmission assembly, and the transmission shaft is connected to the first transmission assembly through the second transmission assembly. The winding needle is connected, the transmission shaft is connected with the second winding needle through the third transmission assembly, and the axial direction of the transmission shaft is parallel to the axial direction of the first winding needle.
The winding device according to claim 1, wherein the diaphragm pulling mechanism comprises a first fixing seat, a first sliding seat, a first clamping module and a first moving module, and the first fixing The seat is connected to the frame, the first sliding seat is slidably arranged on the first fixing seat, the first clamping mechanism is arranged on the first sliding seat, and the first clamping module The diaphragm can be clamped or loosened, and the first moving module can drive the first sliding seat to move relative to the first fixed seat, so that the first clamping module drives the diaphragm to move.
The winding device according to claim 6, wherein the first moving module comprises a first driving component, a second driving component, and a first connecting member, and the first connecting member is connected to the first sliding seat , The first driving assembly can abut against the first connecting member and drive the first connecting member to move relative to the first fixing base, so that the first connecting member drives the first sliding base to be relatively The first fixing base moves, and the second driving assembly can abut against the first connecting member and drive the first connecting member to move relative to the first fixing base, so that the first connecting member drives The first sliding seat moves relative to the first fixed seat.
The winding device according to claim 1, wherein the diaphragm feeding mechanism includes a diaphragm bearing table, a diaphragm pressing roller and a diaphragm pressing member, and a diaphragm is formed between the diaphragm bearing table and the diaphragm pressing roller. In the diaphragm transmission channel through which the diaphragm passes, the diaphragm holding member is rotatably arranged on the frame, and the diaphragm holding member is used to press the diaphragm on the diaphragm bearing platform by gravity.
The winding device according to claim 8, wherein the diaphragm feeding mechanism further comprises a diaphragm stop component and a diaphragm cutter assembly, and the diaphragm stop component can approach or move away from the diaphragm holding member. Move in the direction of, to compress the diaphragm holding member on the diaphragm carrying table or loosen the diaphragm holding member; the diaphragm cutter assembly includes a retractable cutter, the retractable cutter The direction is perpendicular to the diaphragm carrying table and is used to cut the diaphragm.
The winding device of claim 1, wherein the winding device further comprises a first pole piece feeding device and a second pole piece feeding device, the first pole piece feeding device and the second pole piece feeding device Sheet feeding devices are respectively arranged on opposite sides of the diaphragm feeding device, and the first pole piece feeding device and the second pole piece feeding device are respectively used to feed the positive electrode sheet and the negative electrode sheet into the winding device .
The winding device of claim 10, wherein the first pole piece feeding device comprises a third fixing seat, a swing assembly, a first clamping rod, a second clamping rod, and a third driving assembly, and the third fixing The seat is slidably arranged on the frame, the first clamping rod and the swing assembly are both rotatably arranged on the third fixed seat, the second clamping rod is rotatably arranged on the swing assembly, and the first A transmission channel for the pole piece to pass through is formed between the nip roller and the second nip roller, the third drive assembly is against the swing assembly, and the third drive assembly can drive the swing The assembly swings relative to the third fixing base to drive the second nip roller to move toward the first nip roller, so that the pole piece is clamped and fixed to the first nip roller and the first nip roller. Between the second nip roller.
The winding device according to claim 11, wherein the first pole piece feeding device further comprises a pole piece carrying table and a pole piece holding member, and the pole piece carrying table is connected to the third fixing seat , And the pole piece bearing platform is located downstream of the first clamping rod, the pole piece holding member is rotatably arranged on the swing assembly, and the pole piece holding member is used to press the pole piece by gravity Held on the pole piece bearing platform.
The winding device according to claim 11, wherein the winding device further comprises a scissors clip device, the scissors clip device comprising a scissors clip mechanism, a fourth drive assembly and a fifth drive assembly, the scissors clip The mechanism includes a first clip and a second clip, the first clip and the second clip are hinged; the fourth drive assembly is used to drive the scissors clip mechanism to move, so that the pole piece is located between the first clip and the Between the second clamps; the fifth drive assembly is used to drive the second clamp to rotate relative to the first clamp to cut off the pole piece located between the first clamp and the second clamp.
The winding device of claim 13, further comprising a fourth transmission assembly connected between the fifth drive assembly and the swing assembly, and the fifth drive assembly When driving the second clamp to rotate relative to the first clamp to cut off the pole pieces located between the first clamp and the second clamp, the fifth drive assembly can be driven by the fourth transmission assembly The swing assembly swings to drive the second pinch roller to move in a direction close to the first pinch roller, so that the pole piece is clamped and fixed to the first pinch roller and the second pinch roller between.
The winding device of claim 13, wherein the number of the scissor clip mechanism is two, and the two scissor clip mechanisms are a first scissor clip mechanism and a second scissor clip mechanism. The four driving components are used to drive the first scissors clip mechanism and the second scissors clip mechanism to move, so that the positive plate is located between the first clip of the first scissors clip mechanism and the second clip of the first scissors clip mechanism, And the negative electrode piece is located between the first clip of the second scissors clip mechanism and the second clip of the second scissors clip mechanism;

The fifth drive assembly is used to drive the second clip of the first scissor clip mechanism to rotate so that the first scissor clip mechanism can cut the positive electrode piece, and the fifth drive assembly is also used to drive the second scissor The second clip of the clip mechanism rotates so that the second scissors clip mechanism can cut the negative electrode sheet.
The winding device according to claim 1, wherein the winding device further comprises a glue applicator arranged on the frame, and the glue applicator includes a glue feeding mechanism, a glue pressing mechanism, and a glue cutting device. The glue feeding mechanism can clamp the adhesive tape and move along the glue feeding direction to pull out the adhesive tape; the glue pressing mechanism can compress the adhesive tape pulled out by the glue feeding mechanism; the glue cutting mechanism It is used to cut the adhesive tape between the glue feeding mechanism and the glue pressing mechanism; the glue taking mechanism includes a glue taking drive member and a rubber taking wheel, and the glue taking drive member can drive the glue taking wheel to take the glue. Move between the glue position and the glue position, the glue taking wheel can suck the tape cut by the glue cutting mechanism when the glue taking position is in the glue taking position, and the glue taking wheel can stick the tape to On the battery core wound by the winding device.
The winding device according to claim 16, wherein the glue sticking device further comprises a glue sucking mechanism, the glue sucking mechanism comprises a glue sucking driving part and a glue sucking part connected, the glue sucking driving part The glue suction part can be driven to move, so that the glue suction part can transfer the cut tape to the glue taking wheel.
The winding device according to claim 1, wherein the winding device further comprises a blanking device and a conveying device, and the blanking device is arranged between the winding device and the conveying device, so The discharging device includes a first grasping assembly, a second grasping assembly, a first rotation drive assembly and a second rotation drive assembly. The first grasping assembly is used to grab the battery core from the winding device. The first rotary drive assembly is connected to the first grasping assembly, and the first rotary drive assembly can drive the first grasping assembly to rotate from the first position to the second position, so that the first grasping The assembly transfers the cells in the winding device to the second grasping assembly; the second rotation drive assembly is connected to the second grasping assembly, and the second rotation drive assembly can drive the The second grasping component rotates from the third position to the fourth position, so that the second grasping component places the battery on the transmission device.