CN110268564A - Winding equipment - Google Patents

Abstract

The present invention discloses a winding device, including a frame, a diaphragm feeding device and a winding device, wherein the diaphragm feeding device and the winding device are both arranged on the frame; the diaphragm feeding device includes a diaphragm loading mechanism and a diaphragm pulling mechanism, and the diaphragm loading mechanism and the diaphragm pulling mechanism are respectively arranged on opposite sides of the winding device, and the diaphragm loading mechanism is used to convey 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 out a certain distance; the winding device includes a winding needle mechanism, a first winding needle driving mechanism and a second winding needle driving mechanism, and the winding needle mechanism includes a first winding needle and a second winding needle; the first winding needle driving mechanism is connected to the first winding needle, and can drive the first winding needle to move axially so that the first winding needle approaches or moves 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 second winding needle to move axially so that the second winding needle approaches or moves away 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 needle winding mechanism used in the existing battery winding equipment usually includes two overlapping winding needles, and the two winding needles perform telescopic movements synchronously or separately in the axial direction, so as to realize the extension or retraction of the winding needles. The two winding needles first clamp the two separators for pre-rolling, and then insert the positive and negative electrodes between the two separators for winding, and finally form the battery core.

On the one hand, when the winding needle structure of the prior art is pulled out, the part of the diaphragm in contact with 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 other hand On the one hand, this kind of battery winding equipment in the prior art must be provided with two sets of separator feeding devices to transport the two separators respectively, resulting in a relatively complicated structure and high cost of the winding equipment.

Contents of the invention

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 problems of the technologies described above, the technical solution adopted in the present invention is:

A winding device, comprising: a frame, a diaphragm feeding device and a winding device, the diaphragm feeding device and the winding device are all arranged on the frame; the diaphragm feeding device includes a diaphragm feeding mechanism and The diaphragm feeding 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 Clamp the diaphragm and move in a direction close to or away from the diaphragm feeding mechanism to pull the diaphragm in the diaphragm feeding mechanism out 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 winding needle and a second winding needle; the first winding needle driving mechanism is connected with the first winding needle, and is used to drive all The first needle roll moves axially, so that the first roll needle approaches or moves away from the second needle roll; the second needle roll drive mechanism is connected with the second roll needle, and is used to drive the The second rolling pin moves axially so that the second rolling pin is close to or away from the first rolling pin, and the first rolling pin and the second rolling pin can clamp the diaphragm feeding mechanism when they are close to each other and the diaphragm between the diaphragm pulling mechanism; the moving directions of the first winding needle and the second winding needle are opposite when they are away from each other.

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

In the above-mentioned winding equipment, the first winding needle and the second winding needle of the needle winding mechanism are designed separately. When the two are close to each other in the axial direction, the needle winding mechanism is closed, and when the two are away from each other in the axial direction, the needle winding mechanism is realized. This design simplifies the structure of the needle winding mechanism and reduces the difficulty of production; and when the needle is pulled out, the movement directions of the first winding needle and the second winding needle are opposite, which can effectively avoid the phenomenon of core pulling and improve the rolling capacity of the battery. winding quality; and the winding equipment of the present invention divides the diaphragm feeding device into a diaphragm feeding mechanism and a diaphragm pulling mechanism, and the diaphragm feeding mechanism and the diaphragm pulling mechanism are respectively located on opposite sides of the winding device. 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 not only ensures that there are two layers of diaphragm in the wound out cell, In addition, the overall structure of the winding device is simplified.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

in:

Fig. 1 is the front view of the winding equipment of an embodiment of the present invention;

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

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

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

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

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

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

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

Fig. 9 is a structural schematic diagram of the transition structure, the first stopper and the second stopper in the winding device shown in Fig. 7;

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

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

Fig. 12 is a schematic structural view of a gluing device according to an embodiment of the present invention;

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

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to Fig. 1 and Fig. 2, the present invention provides a kind of winding equipment, and this winding equipment comprises frame 100 and the first pole piece feeding device 1000, the first pole piece feeding device 400, the Diode sheet feeding device 1200 , second electrode sheet feeding device 500 , diaphragm feeding device 1100 , diaphragm feeding device 300 and winding device 200 . The first pole piece unwinding device 1000 and the second pole piece unwinding device 1200 are respectively arranged on opposite sides of the winding device 200 . Wherein, the first pole piece unwinding device 1000 is used for unwinding the positive pole piece; into the winding device 200. The second pole piece unwinding device 1200 is used to unwind the negative pole piece; the second pole piece feeding device 500 is arranged between the second pole piece unwinding device 1200 and the winding device 200, and is used for sending the negative pole piece into In the winding device 200. The diaphragm unwinding device 1100 is arranged between the first pole piece unwinding device 1000 and the second pole piece unwinding device 1200 for unwinding the diaphragm. The membrane feeding device 300 is disposed between the membrane discharging device 1100 and the winding device 200 , and is used for feeding the membrane into the winding device 200 . The winding device 200 can clamp the separator, the positive electrode sheet and the negative electrode sheet, and roll the three together to form a battery cell.

Referring to Fig. 1 and Fig. 3, the diaphragm feeding device 300 in the winding device includes a diaphragm feeding mechanism 310 and a diaphragm pulling mechanism 320, and the diaphragm feeding mechanism 310 and the diaphragm pulling mechanism 320 are respectively located at opposite sides of the winding device 200. sides. The diaphragm feeding mechanism 310 can receive the diaphragm in the diaphragm feeding device 1100 and transport the diaphragm to the direction of the winding device 200; 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 arranged on opposite sides of the winding device 200 .

For the winding equipment of this embodiment, the diaphragm feeding device 300 is divided into a diaphragm feeding mechanism 310 and a diaphragm pulling mechanism 320, and 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 part of the diaphragm pulled out by the diaphragm pulling mechanism 320, so that the winding device 200 can fold the pulled diaphragm into two layers for winding during winding. There are two layers of diaphragms in the wound-out cell, and on the other hand, only one diaphragm feeding device 1100 and diaphragm feeding device 300 is required, which greatly simplifies the overall structure of the winding equipment.

As shown in Figure 3, the diaphragm feeding mechanism 310 includes a diaphragm carrying platform 311, a diaphragm pressing roller 312, and a diaphragm holding member 313, and a diaphragm transmission channel for passing the diaphragm is formed between the diaphragm carrying platform 311 and the diaphragm pressing roller 312 One end of the diaphragm holding member 313 is rotatably disposed on the frame 100 , and the other end of the diaphragm holding member 313 is used to hold 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 assembly 314 and a diaphragm cutter assembly 315. The diaphragm stop assembly 314 can move in a direction close to or away from the diaphragm holding member 313, so as to move the diaphragm holding member 313 is pressed tightly on the diaphragm bearing platform 311 or the diaphragm holding member 313 is loosened; the diaphragm cutter assembly 315 includes a cutter cylinder 3151 and a cutter 3152, and the cutter cylinder 3151 can drive the cutter 3152 to expand and contract, and the direction of extension and retraction of the cutter 3152 It is perpendicular to the diaphragm carrying table 311 and is used for cutting the diaphragm.

The diaphragm stop assembly 314 includes a stop cylinder 3141 and a stop block 3142 . The output end of the stop cylinder 3141 is connected to the stop block 3142 for driving the stop block 3142 to approach or move away from the diaphragm holding member 313 . When the diaphragm needs to be cut off, the anti-retraction cylinder 3141 is stretched out, and the anti-retraction pressure block 3142 is held against the diaphragm holding member 313, thereby pressing the diaphragm between the diaphragm holding member 313 and the diaphragm supporting platform 311 to prevent the Diaphragm offset.

As shown in Figures 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 first The fixing seat 321 is connected to the frame 100, the first sliding seat 322 is slidably arranged on the first fixing seat 321, the first clamping mechanism is arranged on the first sliding seat 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 material clamping module 323 includes a first material clamp 3231 , a second material clamp 3232 and a material clamp driving assembly 3233 . The first material clip 3231 and the second material clip 3232 are rotatably disposed on the first sliding seat 322 , and both the first material clip 3231 and the second material clip 3232 are connected to the material clip 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 piece 3243 is connected to the sliding seat, and the first driving assembly 3241 can abut against the first connecting piece 3243 and drive the first connecting piece 3243 to move relative to the first fixed seat 321, so that the first connecting piece 3243 drives the first sliding The seat 322 moves relative to the first fixed seat 321 . The second driving assembly 3242 can abut against the first connecting piece 3243 and drive the first connecting piece 3243 to move relative to the first fixing base 321 , so that the first connecting piece 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 member 32411 and a first moving member 32412 . The first driving part 32411 is connected with the first moving part 32412, and the first driving part 32411 can drive the first moving part 32412 to move relative to the first fixed seat 321, so that the first moving part 32412 abuts against the first connecting part 3243 and drives The first connecting member 3243 moves relative to the first fixing seat 321 .

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

As shown in FIG. 6 , in another embodiment, the first moving module 324 only includes a first driving assembly 3241 and a first connecting member 3243 . The first driving assembly 3241 is connected to the first connecting member 3243 , and the first connecting member 3243 is connected to 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 to 9 , the winding device 200 includes a needle winding mechanism 210 , a first needle winding driving mechanism 220 , a second needle winding driving mechanism 230 and a third needle winding driving 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 rolling needle The needle 211 is close to or away from the second needle 212, the second needle drive mechanism 230 is connected with the second needle 212, the second needle drive mechanism 230 can drive the second needle 212 to move axially, so that the second needle 212 close to or away from the first needle roll 211, under the action of the first roll drive mechanism 220 and the second roll drive mechanism 230, the first roll needle 211 and the second roll needle 212 can approach and overlap each other to clamp Pole piece and diaphragm. The movement directions of the first rolling pin 211 and the second rolling pin 212 are opposite when they approach each other and move away from each other. The third needle winding drive 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, so as to realize the pole piece and the second winding needle 212. The winding of the separator finally forms the battery core.

For the winding device of this embodiment, the first winding needle 211 and the second winding needle 212 are designed separately, and when the two approach each other in the axial direction, the closing of the needle winding mechanism 210 is realized, and when the two move 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 difficulty of production, so that the production cost of the entire battery winding machine can also be reduced.

In order to improve the toughness and bearing capacity of the first rolling needle 211 and the second rolling needle 212, the needle rolling mechanism 210 also includes a needle nozzle seat 213, and the needle nozzle seat 213 is provided with a passed pinholes. The needle rolling mechanism 210 also includes a first extension shaft 214, a first shaft sleeve 215, a second extension shaft 216, and a second shaft sleeve 217. The first extension shaft 214 is connected to the first rolling needle 211, and the first shaft sleeve 215 is sleeved On the first extension shaft 214, the first extension shaft 214 is rotationally connected with the first needle winding drive mechanism 220, and the first needle winding drive mechanism 220 can drive the first extension shaft 214 to move axially relative to the first bushing 215, the first The shaft sleeve 215 is connected with the third needle winding 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 bar-shaped hole extending in the axial direction, and the other of the first extension shaft 214 and the first sleeve 215 is provided with a The limit block that passes through the strip hole. The matching manner between the second extension shaft 216 and the second sleeve 217 is the same, and will not be repeated here.

The first needle drive mechanism 220 includes a first needle drive member 221, a first slider 222 and a first guide rail 223, the first needle drive member 221 is connected to the first slider 222, and the first slider 222 is slidably arranged on On the first guide rail 223, and connected with the first rolling needle 211 by the first extension shaft 214, the first extension shaft 214 and the first rolling needle 211 can rotate relative to the first slide block 222, the extension direction of the first guide rail 223 It is consistent with the axial direction of the first needle roll 211 .

The second needle drive mechanism 230 includes a second needle drive member 231, a second slide block 232 and a second guide rail 233, the second needle drive member 231 is connected with the second slide block 232, and the second slide block 232 is slidably arranged on On the second guide rail 233, and connected with the second rolling needle 212 by the second extension shaft 216, the second extension shaft 216 and the second rolling needle 212 can rotate relative to the second slide block 232, the extension direction of the second guide rail 233 It is consistent with the axial direction of the second needle roll 212 .

Further, the second needle winding drive mechanism 230 also includes a movable shaft 234 and an adapter structure 235, the movable shaft 234 is connected with the second slider 232, the axial direction of the movable shaft 234 is parallel to the axial direction of the second winding needle 212, and the movable shaft 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 transfer 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 FIG. 9 , the second needle roll drive mechanism 230 also includes a first limiting member 236 and a second limiting member 237, both of which are connected to the fixing seat. The limiter 236 and the second limiter 237 are respectively located on both sides of the rotation axis 421 of the swing arm, and both the first limiter 236 and the second limiter 237 can abut against the swing arm to limit the rotation of the swing arm The maximum angle of the second coil needle 212 also limits the maximum telescoping distance. Specifically, when the swing arm abuts against the first limiting member 236, the second rolling needle 212 has been fully extended. When the swing arm abuts against the second limiting member 237, the second needle roll 212 has been completely withdrawn.

As shown in Figure 8, the third needle drive mechanism 240 includes a third needle drive member 241, a transmission shaft 242, a first transmission assembly 243, a second transmission assembly 244 and a third transmission assembly 245, the third needle drive 241 is connected to the transmission shaft 242 through the first transmission assembly 243, the transmission shaft 242 is connected to the first rolling needle 211 through the second transmission assembly 244, the transmission shaft 242 is connected to the second winding needle 212 through the third transmission assembly 245, and the transmission shaft 242 The axial direction of is parallel to the axial direction of the first needle roll 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 equipment.

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 , and the winding device 200 first winds the diaphragm for a certain distance to form a pre-roll body. At this time, there is a section of diaphragm between the pre-roll body and the diaphragm feeding mechanism 310, and another section of diaphragm between the pre-roll body and the diaphragm pulling mechanism 320, and then the first electrode sheet feeding device 400 sends the positive electrode sheet into the pre-roll body Between the separator and a segment of the separator, the second electrode sheet feeding device 500 sends the negative electrode sheet between the pre-rolled body and another segment of the separator, and relies on the force of the separator winding to bring the positive electrode sheet and the negative electrode sheet into the separator and wind together with the separator so that the cells wound in the winding device 200 are stacked sequentially in the order of positive electrode sheet, separator, negative electrode sheet, and separator.

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

As shown in Figures 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 fixed seat 410, and the swinging member 422 is rotatably sleeved on the rotating shaft 421, the second The second nip roller 440 is rotatably arranged on the swing member 422, and the connecting arm 423 is arranged on the swing member 422, and is opposed to the drive assembly. The drive assembly can drive the swing member 422 relative to the third fixed seat 410 around the rotation axis 421 through the connection arm 423. The axial swing is used to drive the second pinch roller 440 to move towards 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, the first transmission arm 452 is arranged at one end of the driving shaft 451, and The swing assembly 420 resists each other, and the drive shaft 451 can drive the first transmission arm 452 to swing around the axial direction of the drive shaft 451, so as to drive the swing assembly 420 to swing relative to the third fixed seat 410, and then drive the second clamp roller 440 to move closer to the first clamp. The direction of the roller 430 moves. In this embodiment, the first transmission arm 452 is opposed to the connecting arm 423 .

The first pole piece feeding device 400 also includes a pole piece carrying platform 460, a pole piece holding member 470 and a material receiving roller 480, the pole piece carrying platform 460 is connected to the third fixing seat 410, and the pole piece carrying platform 460 is located in the first clamp Downstream of the roller 430 , the pole piece holding member 470 is rotatably disposed on the swing assembly 420 , and the pole piece holding member 470 is used to hold the pole piece on the pole piece carrying platform 460 by gravity. The material receiving roller 480 is rotatably arranged on the base and is located at one end of the transmission channel. The material receiving roller 480 is used to guide the transmission of the pole piece along the transmission channel, so as to reduce the vibration generated during the process of the pole piece passing through the transmission channel.

The first pole piece feeding device 400 also includes a feeding driving member 4130 and a fifth transmission assembly 4140, the feeding driving member 4130 is connected to the third fixed seat 410 through the fifth transmission assembly 4140, and the feeding driving member 4130 can drive the third fixed seat 410 in the Moving on the frame 100, the moving direction is approaching or away from the winding device 200. When the feeding driver 4130 drives the third fixed seat 410 to move towards the direction close to the winding device 200, the pole piece can be sent into 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 , and will not be repeated here.

As shown in FIG. 1 and FIG. 11 , the winding device further includes a scissor clip device 600 , which is arranged behind the frame 100 , and a through hole is provided on the frame 100 corresponding to the winding device 200 . The scissors clip device 600 includes a scissors clip mechanism, a fourth drive assembly 620 and a fifth drive assembly 630, the scissors clip mechanism includes a first branch scissors 611 and a second branch scissors 612, and the first branch scissors 611 and the second branch scissors 612 are hinged; The fourth driving assembly 620 is used to drive the movement of the scissors clamp mechanism so that the scissors clamp 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 between the first branch scissors 611 and the second branch scissors 612 Between; the fifth drive assembly 630 is used to drive the second scissors 612 to rotate relative to the first scissors 611 to cut off the pole piece between the first scissors 611 and the second scissors 612 .

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

In one 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 branch scissors 612 to face each other. When the first scissors 611 rotate to cut off the pole piece between the first scissors 611 and the second scissors 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 toward the direction close to the first nip roller 430 , so that the pole piece is clamped and fixed between the first nip roller 430 and the second nip 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 driving shaft 451 . Therefore, in this embodiment, when the scissors clamping device 600 cuts the pole piece, the first clamping roller 430 and the second clamping roller 440 can fix the pole piece, and the pole piece is placed to be offset, the driving of the scissors clamping mechanism and the pole piece The drive for sheet pressing is the same, and the structure is simpler.

As shown in Fig. 1 and Fig. 12, the winding equipment also includes a gluing device 700 arranged on the frame 100, the gluing device 700 includes a fourth fixed seat 760, a glue feeding mechanism 710, a glue pressing mechanism 720, a glue cutting mechanism The mechanism 730 and the glue-taking mechanism 740 are connected to the frame 100 with the fourth fixing seat 760 , and the fourth fixing seat 760 is vertically arranged with 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 compress 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 tape between 720 is cut off; the glue-taking mechanism 740 includes a glue-taking drive and a glue-taking wheel 742, and the glue-taking driving piece can drive the glue-taking wheel 742 to move between the glue-taking position and the glue-applying position, and the glue-taking wheel 742 There is a first vacuum hole for sucking the tape. When the glue-taking wheel 742 is at the glue-taking position, it can absorb the tape cut by the glue-cutting mechanism 730 . When the glue-taking wheel 742 is at the glue-applying position, it can attach the tape to the cell wound out by the winding device 200 . The glue taking wheel 742 of this embodiment can be rotatably set, and in the process of applying glue, the glue taking wheel 742 is close to the battery cell, and can rotate together with the rotation of the battery cell, so that the adhesive tape on the glue taking wheel 742 can be completely pasted on the on the battery cell. It can be understood that the winding device also includes a vacuum generator (not shown in the figure) and a controller (not shown in the figure), and the vacuum generator is connected with the glue taking 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 each driving part and the vacuum generator, and the controller can control the cooperative action of each driving part and the vacuum generator to complete the glue application.

The glue sticking mechanism in the prior art is to put glue on the battery cell first, and then cut off the glue. Due to the pulling effect of the tape, the battery core will be tightened twice, which is easy to cause the battery core to pull. However, the gluing device 700 of this embodiment can cut the adhesive tape first, and then attach the cut adhesive tape to the battery cell by the glue taking wheel 742 , which can effectively avoid secondary tightening of the adhesive tape to the battery cell.

Further, in one embodiment, the gluing device 700 also includes a glue suction mechanism 750, the glue suction mechanism 750 includes a connected glue suction driver and a glue suction part, the glue suction part is provided with a second A vacuum hole (not shown in the figure), the second vacuum hole is connected with the vacuum generator. The glue-absorbing driving part can drive the glue-absorbing part to move, so that the glue-absorbing part can transfer the cut adhesive tape to the glue-taking 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 first grabbing assembly 810, the second The grabbing assembly 820, the first rotary driving assembly 830 and the second rotary driving assembly 840, the winding device 200, the conveying device 900, the first grabbing assembly 810, the second grabbing assembly 820, the first rotary driving assembly 830 and the second The two rotation driving assemblies 840 are both disposed on the frame 100 . The first grabbing assembly 810 is used to grab the battery core from the winding device 200, and is rotatably installed on the frame 100; the output end of the first rotating drive assembly 830 is connected to the first grabbing assembly 810, and is used to drive The first grabbing assembly 810 rotates from the first position to the second position, so that the first grabbing assembly 810 transfers the battery core in the winding device 200 to the second grabbing assembly 820 (of course, the first rotation The driving assembly 830 can also drive the first grabbing assembly 810 to rotate from the second position back to the first position); the second grabbing assembly 820 is used to grab the battery cell from the first grabbing assembly 810; the second rotating drive assembly The output end of 840 is connected to the second grabbing component 820, and is used to drive the second grabbing component 820 to rotate from the third position to the fourth position, so that the second grabbing component 820 places the battery cell on the transfer device 900 (Of course, the second rotation driving 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 component 810 is at the first position, it can clamp the electric core from the winding device 200; when the first grasping component 810 rotates to the second position, it can send the clamped electric core into the In the second grasping component 820 . When the second grabbing component 820 is at the third position, it can clamp the battery cell from the first grabbing component 810 ; when the second grabbing component 820 is rotated to the fourth position, it can place the battery cell in the conveying 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 cells in the winding device 200 to the conveying device 900, which can completely replace manual operations. , to improve the automation of cell transfer, and the positive and negative poles of the cells transferred to the transfer device 900 can be kept consistent, and the risk of damage to the cells can also be reduced. Moreover, the unloading device 800 adopts two groups of grasping components, and the transfer of the battery cells is performed in two stages, which can make the overall layout of the structure more reasonable and reduce the space required by the unloading device 800 .

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

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

The second grabbing assembly 820 includes a second jaw cylinder 821 and a second jaw 822, the output end of the second jaw cylinder 821 is connected to the second jaw 822, and is used to drive the second jaw 822 to open and close. When the second clamping jaw 822 is closed, the battery cell can be clamped; when the second clamping jaw 822 is opened, the battery cell can be released.

The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent transformations made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in related technical fields, are all included in the same principle. Within the scope of patent protection of the present invention.

Claims (18)

1. A winding device, characterized in that, comprising: a frame, a diaphragm feeding device and a winding device, and the diaphragm feeding device and the winding device are all 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, so as 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 driving mechanism and a second needle winding driving mechanism, and the needle winding mechanism includes a first winding needle and a second winding needle; the first winding needle driving mechanism and the connected with the first needle, and is used to drive the first needle to move axially, so that the first needle approaches or moves away from the second needle; the second needle driving mechanism is connected with the The second needle is connected, and is used to drive the second needle to move axially, so that the second needle approaches or moves away from the first needle, and the first needle and the second needle The diaphragm between the diaphragm feeding mechanism and the diaphragm pulling mechanism can be clamped when they are close to each other; the moving direction of the first winding needle and the second winding needle is opposite when they are far away from each other. 2. The winding device according to claim 1, wherein the winding device further comprises a third needle driving mechanism, and the third needle driving mechanism is connected with the first winding needle and the second winding needle. Both needle rolls are connected, and the third needle roll driving mechanism can drive the first roll needle and the second roll needle to rotate synchronously. 3. The winding device according to claim 2, wherein the needle winding mechanism further comprises a first extension shaft, a first shaft sleeve, a second extension shaft and a second shaft sleeve, and the first extension shaft Connected with the first winding needle, the first sleeve is sleeved on the first extension shaft, the first extension shaft is rotationally connected with the first winding needle driving mechanism, and the first winding needle driving mechanism It can drive the first extension shaft to move axially relative to the first bushing, the first bushing is connected to the third needle winding drive mechanism, and the third needle winding drive mechanism can drive the first needle winding drive mechanism. a shaft sleeve rotates to drive the first extension shaft and the first winding needle to rotate; The second extension shaft is connected to the second needle winding, the second sleeve is sleeved on the second extension shaft, the second extension shaft is rotatably connected to the second needle winding driving mechanism, the The second needle winding drive mechanism can drive the second extension shaft to move axially relative to the second sleeve, the second sleeve is connected to the third needle winding drive mechanism, and the third needle winding drive The mechanism can drive the second shaft sleeve to rotate to drive the second extension shaft and the second winding needle to rotate. 4. The winding device according to claim 2, wherein the second needle drive mechanism comprises a second needle drive member, a movable shaft and an adapter structure, and the second needle drive member is close to the The first needle roll is set, the second needle roll drive is connected to the movable shaft, and is used to drive the movable shaft to move axially, and the axial direction of the movable shaft is parallel to the axis of the second roll needle. In the axial direction, the movable shaft is connected to the second needle through the transfer structure, and both the movable shaft and the second needle can rotate relative to the transfer structure. 5. The winding device according to claim 4, wherein the third needle drive mechanism comprises a third needle drive member, a transmission shaft, a first transmission assembly, a second transmission assembly and a third transmission assembly , the transmission shaft is sleeved outside the movable shaft, the third needle drive member is connected to the transmission shaft through the first transmission assembly, and the transmission shaft is connected to the transmission shaft through the second transmission assembly. The first needle roll is connected, the transmission shaft is connected with the second needle roll through the third transmission assembly, and the axis of the transmission shaft is parallel to the axis of the first needle roll. 6. The winding device according to claim 1, wherein the diaphragm pulling mechanism comprises a first fixed seat, a first sliding seat, a first clamping module and a first moving module, and the first A fixing 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 mechanism The module can clamp or loosen the diaphragm, 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 can drive the diaphragm to move. 7. The winding device according to claim 6, wherein the first moving module includes a first driving assembly, a second driving assembly and a first connecting member, and the first connecting member is connected to the first sliding seat connection, the first driving assembly can abut against the first connecting piece and drive the first connecting piece to move relative to the first fixed seat, so that the first connecting piece drives the first sliding The seat moves relative to the first fixed seat, and the second drive assembly can abut against the first connecting piece and drive the first connecting piece to move relative to the first fixed seat, so that the first connection The component drives the first sliding seat to move relative to the first fixed seat. 8. The winding device according to claim 1, wherein the diaphragm feeding mechanism comprises a diaphragm carrying platform, a diaphragm pressing roller, and a diaphragm holding member, and there is a space between the diaphragm carrying platform and the diaphragm pressing roller. A diaphragm transmission channel for the diaphragm to pass through is formed, the diaphragm holding member is rotatably arranged on the frame, and the diaphragm holding member is used to press and hold the diaphragm on the diaphragm carrying platform by gravity . 9. The winding device according to claim 8, characterized in that, the diaphragm feeding mechanism further comprises a diaphragm stop assembly and a diaphragm cutter assembly, and the diaphragm stop assembly can be pressed close to or away from the diaphragm. The direction of the holder is moved to press the diaphragm holding member on the diaphragm bearing platform or loosen the diaphragm holding member; the diaphragm cutter assembly includes a retractable cutter, and the cutter The expansion and contraction direction is perpendicular to the diaphragm bearing table, and is used to cut the diaphragm. 10. The winding device according to claim 1, characterized in that, 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 The two electrode sheet feeding devices are respectively arranged on opposite sides of the diaphragm feeding device, and the first electrode sheet feeding device and the second electrode sheet feeding device are respectively used to send the positive electrode sheet and the negative electrode sheet into the winding device. 11. The winding device according to claim 10, characterized in that, the first pole piece feeding device comprises a third fixing seat, a swing assembly, a first clamping roller, a second clamping roller and a third driving assembly, and the first The three fixing seats are slidably arranged on the frame, the first clamping rod and the swing assembly are both rotatably arranged on the third fixing seat, the second clamping roller is rotatably arranged on the swing assembly, and the A transmission channel for the pole piece to pass is formed between the first nip roller and the second nip roller, the third drive assembly is opposed to the swing assembly, and the third drive assembly can drive the pole piece The oscillating assembly swings relative to the third fixing seat, so as to drive the second nip roller to move toward the direction close to the first nip roller, so that the pole piece is clamped and fixed on the first nip roller and between the second nip roller. 12. The winding equipment according to claim 11, characterized in that, the first pole piece feeding device further comprises a pole piece carrying platform and a pole piece holding member, and the pole piece carrying platform is connected to the third fixed seat, and the pole piece carrying platform is located downstream of the first clamping rod, and the pole piece holding member is rotatably arranged on the swing assembly, and the pole piece holding piece is used to push the pole piece by gravity The sheet is pressed and held on the pole piece carrying platform. 13. The winding device according to claim 11, characterized in that, the winding device further comprises a scissors clamp device, the scissors clamp device comprises a scissors clamp mechanism, a fourth drive assembly and a fifth drive assembly, the The scissors clamp mechanism includes a first clamp and a second clamp, and the first clamp and the second clamp are hinged; the fourth drive assembly is used to drive the movement of the scissors clamp mechanism so that the pole piece is positioned at the first between the clip and the second clip; the fifth drive assembly is used to drive the second clip to rotate relative to the first clip to cut off the pole between the first clip and the second clip piece. 14. The winding device according to claim 13, further comprising a fourth transmission assembly, the fourth transmission assembly is connected between the fifth drive assembly and the swing assembly, the fifth When the drive assembly drives the second clip to rotate relative to the first clip to cut off the pole piece between the first clip and the second clip, the fifth drive assembly can pass through the fourth transmission The assembly drives the oscillating assembly to swing to drive the second nip roller to move toward the direction close to the first nip roller, so that the pole piece is clamped and fixed between the first nip roller and the second nip roller. between the nip rollers. 15. Winding equipment as claimed in claim 13, is characterized in that, the number of described scissors clip mechanism is two, and two described scissors clip mechanisms are respectively the first scissors clip mechanism and the second scissors clip mechanism, so The fourth driving assembly is used to drive the movement of the first scissors mechanism and the second scissors mechanism so that the positive electrode is located between the first clip of the first scissors mechanism and the second clip of the first scissors mechanism between, and make the negative plate 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 scissors clip mechanism to rotate so that the first scissors clip mechanism can cut off the positive electrode sheet, and the fifth drive assembly is also used to drive the second scissors The second clip of the clip mechanism is rotated so that the second scissors clip mechanism can cut off the negative electrode sheet. 16. Winding equipment as claimed in claim 1, is characterized in that, described winding equipment also comprises the gluing device that is arranged on described frame, and described gluing device comprises glue feeding mechanism, glue pressing mechanism, A glue cutting mechanism and a glue taking mechanism, the glue feeding mechanism can clamp the tape and move along the glue feeding direction to pull out the tape; the glue pressing mechanism can compress the tape pulled out by the glue feeding mechanism; the cutting The glue mechanism is used to cut off the tape between the glue feeding mechanism and the glue pressing mechanism; the glue taking mechanism includes a glue taking driver and a glue taking wheel, and the glue taking driver can drive the glue taking wheel Move between the glue-taking position and the glue-applying position. When the glue-taking wheel is located at the glue-taking position, it can absorb the adhesive tape cut by the glue-cutting mechanism. Paste it on the electric core wound out by the winding device. 17. The winding device according to claim 16, wherein the glue application device further comprises a glue suction mechanism, the glue suction mechanism includes a glue suction driver and a glue suction part connected, and the glue suction The driving member can drive the glue-absorbing part to move, so that the glue-absorbing part can transfer the cut adhesive tape to the glue-taking wheel. 18. The winding device according to claim 1, characterized in that, the winding device further comprises a feeding device and a conveying device, and the discharging device is arranged between the winding device and the conveying device , the unloading device includes a first grabbing assembly, a second grabbing assembly, a first rotary drive assembly, and a second rotary drive assembly, the first grabbing assembly is used to grab the battery core from the winding device, The first rotary driving assembly is connected to the first grabbing assembly, and the first rotary driving assembly can drive the first grabbing assembly to rotate from a first position to a second position, so that the first The grabbing assembly transfers the electric core in the winding device to the second grabbing assembly; the second rotary drive assembly is connected to the second grabbing assembly, and the second rotary drive assembly can drive The second grabbing component rotates from the third position to the fourth position, so that the second grabbing component places the battery cells on the conveying device.