WO2020223954A1

WO2020223954A1 - Winding apparatus

Info

Publication number: WO2020223954A1
Application number: PCT/CN2019/086161
Authority: WO
Inventors: 黄森; 呙德红; 宗勇; 谭国彪
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: CN110301058A; CN110301058B

Abstract

The present invention relates to the technical field of lithium battery production apparatuses, and in particular, to a winding apparatus. The winding apparatus comprises a rack, and an electrode sheet supplying device, a separator supplying device, a winding device, an unloading device and a test device which are provided on the rack. The electrode sheet supplying device comprises a first feeding drive member, a second feeding drive member, a feeding base, a material clamping assembly and a scissor assembly, the first feeding drive member being connected to the rack and being able to drive the feeding base to move relative to the rack; the second feeding drive member, the material clamping assembly and the scissor assembly are all connected to the feeding base, and the second feeding drive member is able to drive the material clamping assembly to move relative to the feeding base. The electrode sheet supplying device and the separator supplying device can automatically convey an electrode sheet and a separator to the winding device respectively, and after the winding device winds the electrode sheet and the separator into a battery cell, the unloading device can automatically convey the battery cell to the test device for testing, and the winding procedure and the testing procedure are performed continuously, so as to achieve automatic production.

Description

Winding equipment

Technical field

The present invention relates to the technical field of lithium battery production equipment, in particular to a winding equipment.

Background technique

In the production process of lithium batteries, it is necessary to first wind the pole piece and the separator into a battery core, and the pole piece includes a positive electrode piece and a negative electrode piece, and the separator includes a first separator and a second separator.

technical problem

In the prior art, a semi-automatic winding machine is usually used to wind the battery core, which has low production efficiency, and a large number of manual operations will inevitably lead to direct contact with the pole piece and the diaphragm by the human hand, which will affect the production quality of the battery.

Technical solutions

The purpose of the present invention is to provide a winding device, which aims to solve the problem that a large number of manual operations are required when a semi-automatic winding machine is used for production, thereby affecting the production quality of the battery.

In order to solve the above problems, the present invention provides a winding device, which includes a frame, a pole piece feeding device, a diaphragm feeding device, a winding device, a blanking device, and a detection device;

The pole piece feeding device is used for conveying the pole piece to the winding device, and the pole piece feeding device includes a first feeding drive member, a second feeding drive member, a feeding base, a clamping assembly, and a scissors assembly , The first feeding drive member is connected to the frame and can drive the feeding base to move relative to the frame, and the second feeding drive member, the clamping assembly and the scissors assembly are all connected with The feeding base is connected, and the second feeding drive member can drive the clamping assembly to move relative to the feeding base;

The diaphragm feeding device is connected to the frame and is used to transfer the diaphragm to the winding device;

The winding device is connected to the frame and is used for winding the pole piece and the diaphragm into a battery cell;

The unloading device is connected to the frame, and is used to transport the battery core formed by the winding device to the detection device;

The detection device is connected to the rack and is used to detect whether the battery cell is qualified;

The pole piece feeding device is provided with two groups to transport the positive electrode piece and the negative electrode piece to the winding device, and the separator feeding device is also provided with two groups to separate the first separator and the second separator. Transported to the winding device, and the first separator is located between the positive electrode sheet and the negative electrode sheet, and the positive electrode sheet or the negative electrode sheet is located between the first separator and the second separator .

Beneficial effect

In the above-mentioned winding equipment, the pole piece feeding device and the diaphragm feeding device can automatically transport the pole piece and the diaphragm to the winding device respectively. After the winding device winds the pole piece and the diaphragm into a battery, the unloading device can automatically The cells are transported to the testing device for testing. The winding process and testing process are carried out in a continuous manner to achieve automated production, and there is no need to collect the wound cells and then transfer them to the testing device for testing, which can save production time and improve processing effectiveness. At the same time, the winding process and the inspection process are all completed by one equipment, which can reduce the space occupied by the equipment. In addition, the pole piece feeding device is equipped with a first feeding drive and a second drive. While the first feeding drive drives the clamping assembly to move, the second feeding drive can also drive the clamping assembly to move, which can speed up the clamping The moving speed of the component can increase the speed of the pole piece feeding device to convey the pole piece, thereby further improving the processing efficiency.

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 schematic front view of a winding device in an embodiment;

Figure 2 is a schematic diagram of a part of the pole piece feeding device in Figure 1;

3 is a schematic diagram of the winding mechanism of the winding device in FIG. 1;

Fig. 4 is a schematic diagram of another view of the winding mechanism in Fig. 3;

Figure 5 is a schematic structural view of the winding needle assembly of the winding mechanism in Figure 3;

Fig. 6 is a schematic diagram of a partial structure of the winding device in Fig. 1;

Fig. 7 is a schematic diagram of the structure of the glue application mechanism in Fig. 1;

Figure 8 is a partial enlarged view of A in Figure 7;

FIG. 9 is a schematic structural diagram of the glue application mechanism in FIG. 7 from another perspective;

10 is a schematic diagram of the structure of the blanking device and the detection device in FIG. 1;

11 is a schematic structural diagram of another state of the blanking device and the detecting device in FIG. 10;

Figure 12 is a schematic diagram of the clamping mechanism of the blanking device in Figure 10;

FIG. 13 is a schematic diagram of part of the structure of the blanking device and the detection device in FIG. 10.

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.

As shown in FIG. 1, an embodiment of the present invention provides a winding device, which includes a frame 10, a pole piece feeding device 20, a diaphragm feeding device 30, a winding device 40, a blanking device 50 and a detection device 60.

The pole piece feeding device 20, the diaphragm feeding device 30, the winding device 40, the unloading device 50 and the detection device 60 are all connected to the frame 10, and the pole piece feeding device 20 is used to transport the pole pieces to the winding device 40 , The diaphragm feeding device 30 is used to convey the diaphragm to the winding device 40, the winding device 40 is used to wind the pole pieces and the diaphragm into the electric core, and the blanking device 50 is used to wind the winding device 40 to form an electric The core is transported to a detection device 60, which is used to detect whether the battery cell is qualified.

The pole piece feeding device 20 is provided with two sets to transport the positive electrode piece and the negative electrode piece to the winding device 40 respectively. The diaphragm feeding device 30 is also provided with two groups to transport the first diaphragm and the second diaphragm to the winding device 40 respectively. Moreover, during winding, the first separator is located between the positive electrode sheet and the negative electrode sheet, and the positive electrode sheet or the negative electrode sheet is located between the first separator and the second separator.

In the above-mentioned winding equipment, the pole piece feeding device 20 and the diaphragm feeding device 30 can automatically transport the pole pieces and the diaphragm to the winding device 40, respectively. The winding device 40 winds the pole pieces and the diaphragm into a battery, and then downloads The material device 50 can automatically transport the cells to the testing device 60 for testing. The winding process and the testing process are carried out continuously to achieve automated production, and there is no need to collect the wound cells before transferring them to the testing device 60 for testing. It can save production time and improve processing efficiency. At the same time, the winding process and the inspection process are all completed by one equipment, which can reduce the space occupied by the equipment.

It is worth mentioning that the winding equipment also includes an encoder 101, a brush mechanism 102, and a tension mechanism 103. The encoder 101, the brush mechanism 102 and the tension mechanism 103 are all connected to the frame 10 and are arranged on the pole piece and the diaphragm. On the transmission path. The encoder 101 can detect the winding length of the pole piece and diaphragm, the brush mechanism 102 can remove impurities on the pole piece and diaphragm, and the tension mechanism 103 can tension the pole piece and diaphragm to prevent the pole piece and diaphragm from being too long due to the transmission path. Loose.

Mainly referring to FIG. 2, the pole piece feeding device 20 includes a first feeding driving member (not shown in the figure), a second feeding driving member 22, a feeding base 23, a clamping assembly 24 and a scissors assembly 25. The first feeding driving member is connected to the frame 10 and can drive the feeding base 23 to move relative to the frame 10. The second feeding driving member 22, the clamping assembly 24 and the scissors assembly 25 are all connected to the feeding base 23, and the second feeding driving member 22 can drive the clamping assembly 24 to move relative to the feeding base 23.

When feeding materials, the clamping assembly 24 clamps the pole pieces, and the first and second feeding drive members 22 drive the clamping assembly 24 to move to transport the pole pieces to the winding device 40. When the winding device 40 winds the cell, the clamping assembly 24 loosens the pole pieces and returns to the initial position, and the pole pieces rely on the winding device 40 to continuously transport the pole pieces to the winding device 40. After the winding device 40 winds the pole piece to a predetermined length, the scissors assembly 25 cuts the pole piece.

By providing the first feeding drive member and the second feeding drive member 22, while the first feeding drive member drives the clamping assembly 24 to move, the second feeding drive member 22 can also drive the clamping assembly 24 to move, which can speed up the clamping assembly 24 The moving speed can increase the speed at which the pole piece feeding device 20 conveys the pole piece, thereby further improving the processing efficiency.

Referring mainly to FIGS. 3 to 5, the winding device 40 includes a winding mechanism 41, and the winding mechanism 41 includes a needle winding assembly 411, a position changing assembly 412, a needle ejection assembly 413, a needle drawing assembly 414 and a winding drive assembly 415. The needle winding assembly 411 has three groups, and each group of the needle winding assembly 411 includes a needle sleeve 4111, a first winding needle 4113, a second winding needle 4115, a clamping needle 4116, and a needle opening member 4117. The first winding needle 4113, the second winding needle 4115 and the material clamping needle 4116 are all connected to the needle seat. The material clamping needle 4116 is located between the first winding needle 4113 and the second winding needle 4115, and the clamping needle 4116 is connected to the second winding needle 4116. There is a gap between the needles 4115. The needle opening member 4117 is inserted through the needle sleeve 4111 and is slidably connected with the needle sleeve 4111.

The shift position assembly 412 is arranged on the frame 10 and includes a shift position motor 4121, a divider 4122 and a turntable 4123. The shift position motor 4121 drives the divider 4122 to move through a synchronous wheel-synchronous belt mechanism. The divider 4122 and the turntable 4123 Through gear meshing, the shifting motor 4121 can drive the turntable 4123 to rotate. The three sets of winding needle assemblies 411 are all connected to the turntable 4123 and can rotate with the turntable 4123, so that each needle winding assembly 411 can respectively rotate between the winding station, the glueing station and the unloading station.

The needle extraction assembly 413 and the needle extraction assembly 414 are both connected to the frame 10, and the needle extraction assembly 413 corresponds to the winding station, and the needle extraction assembly 414 corresponds to the unloading station. The needle outlet assembly 413 can drive the needle sleeve 4111 and the needle opening member 4117 located at the winding station to extend along the axial direction of the needle sleeve 4111 respectively. The end of the needle opening member 4117 has an inclined surface. When the needle opening member 4117 moves along the axial direction of the needle sleeve 4111, the inclined surface abuts the clamping needle 4116 to drive the clamping needle 4116 close to the second winding needle 4115. Moreover, the winding needle assembly 411 further includes a spring. When the clamping needle 4116 moves in a direction close to the second winding needle 4115, the clamping needle 4116 compresses the spring, so that the spring stores elastic potential energy. When the winding needle assembly 411 of the winding station moves to the unloading station, the needle drawing assembly 414 can drive the needle sleeve 4111 and the needle opening member 4117 at the unloading station to retract along the axial direction of the needle sleeve 4111 to open the needle When the piece 4117 is retracted, the spring releases elastic potential energy to drive the clamping needle 4116 to reset.

In addition, the winding mechanism 41 further includes a needle tip sleeve 416 which is arranged on the frame 10. When the winding needle assembly 411 extends, the ends of the first winding needle 4113, the second winding needle 4115 and the clamping needle 4116 are inserted into the needle nozzle cover 416, and the needle mouth cover 416 can rotate with the needle winding assembly 411. By providing the needle tip cover 416, both ends of the first winding needle 4113, the second winding needle 4115 and the clamping needle 4116 are supported to rotate smoothly, thereby improving the winding quality.

The winding drive assembly 415 is connected to the frame 10 and includes a winding drive 4151 and a drive shaft 4152. The drive shaft 4152 includes a central shaft, a first drive sleeve and a second drive sleeve. The first drive sleeve is sleeved on the central shaft. , The second drive shaft sleeve is sleeved on the first drive shaft sleeve to save space. The number of winding drive parts 4151 is three. The first winding drive part 4151 drives the central shaft to rotate through the synchronous wheel-synchronous belt mechanism, and the second winding drive part 4151 drives the first drive shaft through the synchronous wheel-synchronous belt mechanism. The sleeve rotates, and the third winding driving member 4151 rotates through the second driving sleeve of the synchronous wheel-synchronous belt mechanism. One of the central shaft, the first drive sleeve and the second drive sleeve is driven by gears with the needle sleeve 4111 of the winding station, and the other is driven by gears with the needle sleeve 4111 of the glue station. The needle sleeve 4111 of the material station is driven by gears, so that the three winding driving members 4151 can respectively drive the needle winding assembly 411 of the three stations to rotate, so that the needle winding assembly 411 of each station can work independently.

When the needle winding assembly 411 rotates to the winding station, the needle outlet assembly 413 drives the needle sleeve 4111 to move relative to the turntable 4123 along the axis of the turntable 4123 to drive the first winding needle 4113, the second winding needle 4115 and the clamping needle 4116 Extend so that the septum is located between the clamping needle 4116 and the second winding needle 4115. Then, the needle outlet assembly 413 drives the needle opening member 4117 to move relative to the needle sleeve 4111 along the axis of the needle sleeve 4111, and the needle opening member 4117 drives the clamping needle 4116 to approach the second winding needle 4115 to clamp the diaphragm to the second winding needle. Between 4115 and pin 4116. Then, the winding driving member 4151 drives the needle sleeve 4111 to rotate to drive the first winding needle 4113, the second winding needle 4115 and the clamping needle 4116 to wind the diaphragm. During the winding process, the pole piece feeding device 20 also transfers the pole pieces to the winding station at the same time, so that the winding needle assembly 411 of the winding station can wind the diaphragm and the pole pieces to form a battery core. After the pole piece and the diaphragm are wound to a predetermined length, the scissors assembly 25 cuts the pole piece. Then, the turntable 4123 rotates so that the winding needle assembly 411 of the winding station is transferred to the glue application station. At the same time, the next winding needle assembly 411 that rotates to the winding station clamps the diaphragm.

Further, referring mainly to FIG. 6, the winding device 40 further includes a first guide mechanism 42, and the first guide mechanism 42 includes a first guide driving member 421 and a first guide wheel 422 that are connected. The first guide driving member 421 is connected to the frame 10 and can drive the first guide wheel 422 to move. The first guide mechanism 42 is provided with two groups. Between the two first guide wheels 422, the pole piece and the diaphragm can pass through to guide the diaphragm and the pole piece, so that the diaphragm and the pole piece can be accurately inserted into the clamping needle 4116 and the first Between the second volume needle 4115.

Further, the winding device 40 further includes a second guide mechanism 43, and the second guide mechanism 43 includes a second guide driving member 431, a second guide wheel 432 and a third guide wheel 433. The second guide driving member 431 is connected to the first guide driving member 421 and can drive the second guide wheel 432 to move, and the third guide wheel 433 is connected to the frame 10. The second guide mechanism 43 is provided with two groups, of which the first diaphragm and the positive electrode sheet can pass between the second guide wheel 432 and the third guide wheel 433 of the second guide mechanism 43, and the second guide mechanism Between the second guide wheel 432 and the third guide wheel 433 of 43, the second diaphragm and the negative electrode piece can pass through, so as to further guide the pole piece and the diaphragm. Moreover, when the second guide wheel 432 is close to the third guide wheel 433, the second guide wheel 432 can also tension the pole piece and the diaphragm, so that the pole piece and the diaphragm remain tensioned during the winding process, and prevent the pole piece and the diaphragm from being Wrinkles occur during winding.

Referring mainly to FIG. 6, the winding device 40 further includes a diaphragm cutting mechanism 44, and the diaphragm cutting mechanism 44 includes a cutter 441 assembly and a pressing assembly 442. The cutter 441 assembly includes a cutter driver (not shown in the figure) and a cutter 441 connected to each other. The cutter driver is connected to the frame 10 and can drive the cutter 441 to connect the winding station and the glue station The diaphragm between is cut off. The pressing component 442 includes a pressing drive 4421 and a pressing wheel 4422. The pressing drive 4421 is connected to the frame 10 and can drive the pressing wheel 4422 to press against the diaphragm between the winding station and the glue station. To prevent the diaphragm from falling down after being cut off. After the diaphragm between the winding station and the glue station is cut off, the winding needle assembly 411 of the winding station restarts to wind the next battery cell, and the winding needle assembly 411 of the glue station continues to rotate to wind and cut After the tailings.

Further, the diaphragm cutting mechanism 44 further includes an adjustment assembly 443, and the adjustment assembly 443 includes an adjustment driving member 4431 and an adjustment wheel 4432. The adjustment driving member 4431 is connected with the pressing driving member 4421, and can drive the adjustment wheel 4432 close to the battery core of the gluing station to limit the unwound diaphragm and pole piece on the gluing station from falling down.

Referring mainly to FIGS. 7 to 9, the winding device 40 further includes a glue application mechanism 45, and the glue application mechanism 45 includes a glue feeding component 451, a glue pressing component 452, a glue cutting component 453 and a glue taking component 454. The glue feeding assembly 451 includes a glue feeding driving member 4511 and a glue laminating part 4512 connected. The glue feeding driving member 4511 is connected to the frame 10 and can drive the glue laminating part 4512 to reciprocate along the glue feeding direction to put the glue tray 4546 on The tape is pulled out. The caulking assembly 452 includes a caulking driving member 4521 and a caulking portion 4522 that are connected. The caulking driving member 4521 is connected to the frame 10 and can drive the caulking portion 4522 to compress the tape. The rubber cutting assembly 453 includes a rubber cutting driving member 4531 and a rubber cutting knife 4532 connected to each other. The rubber cutting driving member 4531 is connected to the frame 10 and can drive the rubber cutting knife 4532 to move to cut the tape. The glue taking assembly 454 includes a glue taking drive 4541 and a glue taking wheel 4542 connected. The glue taking drive 4541 is connected to the frame 10 and can drive the glue taking wheel 4542 to reciprocate between the glue taking position and the glue sticking position.

When the rubber taking wheel 4542 is located at the glue taking position, the axial direction of the rubber taking wheel 4542 is parallel to the glue feeding direction, and the rubber taking wheel 4542 can suck the cut tape. When the rubber-taking wheel 4542 is at the glue-applying position, the rubber-taking wheel 4542 corresponds to the glue-applying station, and the axial direction of the rubber-taking wheel 4542 is parallel to the axial direction of the cell. The rubber-taking wheel 4542 can move the tape along the axial direction of the cell. Paste it on the cell of the glue station.

In the glue application device described above, after the glue feeding driving member 4511 drives the glue clamping part 4512 to pull out the adhesive tape in the glue feeding direction, the glue driving member 4521 drives the glue pressing part 4522 to press the adhesive tape onto the rubber take-up wheel 4542. Then, the rubber cutting drive member 4531 drives the rubber cutter 4532 to cut the tape, and the cut tape is adsorbed onto the rubber take-up wheel 4542. Since the axial direction of the rubber take-up wheel 4542 is parallel to the direction of glue feeding and the axial direction of the battery core, when the cut tape is adsorbed on the rubber take-up wheel 4542, the length direction of the tape is parallel to the axial direction of the rubber take-up wheel 4542, so that When the tape can be attached to the battery along the axial direction of the battery, the amount of tape can be saved. Moreover, the way the tape is attached to the cell along the axial direction of the cell will not affect the tightness of the cell winding, which can prevent the cell from becoming tight after being glued and pulling the core during unloading, thereby improving the use of the above-mentioned sticking. The production quality of the winding equipment of the glue mechanism 45. In addition, since the tape is cut and then attached to the battery cell, the length and flatness of each tape remain the same, thereby ensuring the consistency of battery production.

Specifically, referring mainly to FIG. 8, the glue driving member 4521 includes a first glue driving member 45211 and a second glue driving member 45212. The first caulking driving member 45211 is connected with the frame 10, and the second caulking driving member 45212 is connected with the caulking part 4522. The first glue driving part 45211 can drive the glue part 4522 to move in the glue feeding direction through the second glue driving part 45212, and the second glue driving part 45212 can drive the glue part 4522 to compress the adhesive tape to the glue taking wheel 4542.

Before the second gluing driving member 45212 drives the gluing portion 4522 to press the tape onto the rubber take-up wheel 4542, the first gluing driver 45211 drives the gluing portion 4522 to approach the clamp along the glue feeding direction through the second gluing driving member 45212胶部4512. After the second gluing driver 45212 drives the gluing portion 4522 to press the adhesive tape onto the rubber take-up wheel 4542, the first gluing driver 45211 drives the gluing portion 4522 through the second gluing driver 45212 to reset. During the resetting process of the pressing part 4522, the pressing part 4522 can smooth out the tape on the rubber wheel 4542 to make the tape more flat. Finally, the second pressure glue driving member 45212 drives the pressure glue part 4522 to reset.

Further, the glue cutting driving member 4531 is connected to the glue feeding driving member 4511, and the glue feeding driving member 4511 can drive the glue clamping portion 4512 and the glue cutting assembly 453 to reciprocate along the glue feeding direction. That is, there is no relative displacement between the glue cutting mechanism and the glue feeding assembly 451 in the glue feeding direction. Understandably, in other embodiments, the rubber cutting drive member 4531 may also be directly connected to the frame 10. At this time, in order to prevent the glue cutting mechanism from being touched by the glue clamping part 4512 moving along the glue feeding direction, the glue cutting mechanism needs to be arranged on the side of the glue clamping part 4512 away from the glue taking wheel 4542. At this time, the distance between the glue cutting mechanism and the tape becomes larger, and the glue cutter 4532 needs to move a greater distance when cutting the tape, which is not conducive to improving the working efficiency of the glue applicator.

Mainly referring to FIG. 8, the glue feeding assembly 451 further includes an auxiliary driving part 4513, the auxiliary driving part 4513 is connected with the glue feeding driving part 4511, and the glue clamping part 4512 is connected with the auxiliary driving part 4513. The glue feeding driving member 4511 can drive the glue clamping part 4512 to move in the glue feeding direction through the auxiliary driving member 4513, and the auxiliary driving member 4513 can drive the glue clamping part 4512 to move in the direction close to the rubber take-up wheel 4542, so that the tape approaches the rubber take-up wheel. 4542, it is convenient for the pressing part 4522 to press the tape onto the rubber take-up wheel 4542.

The glue part 4512 includes a glue feeding station 45121, a glue driving part 45122 and a glue part 45123. The glue feeding table 45121 and a glue driving part 45122 are all connected with an auxiliary driving part 4513, and the glue driving part 45122 and a glue part 45123 are connected. connection. The glue clamping driving member 45122 can drive the glue clamping member 45123 to move, so as to clamp the adhesive tape between the glue feeding table 45121 and the glue clamping member 45123.

Mainly referring to FIG. 9, the glue taking mechanism further includes a mounting member 4543, the mounting member 4543 is rotatably connected with the frame 10, and the mounting member 4543 is connected with the rubber taking wheel 4542. The glue taking drive member 4541 includes a first glue taking drive member 45411 and a second glue taking drive member 45412. The first glue taking drive member 45411 is connected to the frame 10, and the second glue taking drive member 45412 is connected to the mounting member 4543. Both the glue taking drive member 45411 and the second glue taking drive member 45412 can drive the mounting member 4543 to rotate, so that the glue taking wheel 4542 swings between the glue taking position and the glue applying position.

Specifically, the first glue taking drive member 45411 and the second glue taking drive member 45412 are both air cylinders, and the stroke and thrust of the first glue taking drive member 45411 are greater than the second glue taking drive member 45412. The first glue taking drive member 45411 can drive the glue taking wheel 4542 to move quickly, and the second glue taking drive member 45412 can drive the glue taking wheel 4542 to accurately locate the glue taking position and the glue applying position. The synergy of the two can make the rubber take wheel 4542 move quickly and accurately.

It should be noted that, in this embodiment, the glue taking drive member 4541 drives the glue taking wheel 4542 to swing relative to the frame 10 so that the glue taking wheel 4542 reciprocates between the glue taking position and the glue applying position. Of course, in other embodiments, the glue taking drive member 4541 can also drive the glue taking wheel 4542 to slide relative to the frame 10, and the movement path of the glue taking wheel 4542 is selected according to the relative positions of the glue applicator and the winding device 40.

Further, referring mainly to FIG. 7, the outer circumferential surface of the rubber removal wheel 4542 has an arc-shaped part 45421 and a flat part 45422, and the flat part 45422 is provided with a vacuum hole 45423. In this way, the tape can be adsorbed on the flat portion 45422, making the tape smoother.

It is understandable that, in this embodiment, the glue applying mechanism 45 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 taking wheel 4542 to make the vacuum The hole 45423 can switch between a vacuum state and a 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.

In addition, in this embodiment, the glue taking assembly 454 further includes a rotation driving member 4544, the rotation driving member 4544 is connected to the glue taking driving member 4541, and the rotation driving member 4544 can drive the rubber taking wheel 4542 to rotate. In this way, when the rubber taking wheel 4542 moves to the glue taking position, the rotation driving member 4544 can drive the rubber taking wheel 4542 to rotate to a position where the vacuum hole 45423 is directly facing the adhesive tape to suck the adhesive tape. When the glue taking drive part 4541 drives the glue taking wheel 4542 to move to the glue application position, the rotation drive part 4544 can also drive the glue taking wheel 4542 to rotate so that the tape on the glue taking wheel 4542 is facing the battery core, thereby sticking the tape on On the battery. Moreover, when the rubber wheel 4542 rotates, the tape can be smoothed, so that the tape attached to the battery core is flatter and firmer.

It should be noted that in other embodiments, the rotation driving member 4544 may also be eliminated. At this time, it is necessary to set the initial position of the rubber removal wheel 4542 so that the vacuum hole 45423 faces the tape when it is at the rubber removal position. When the rubber removal wheel 4542 moves to the glue application position, the rubber removal wheel 4542 abuts the battery core, and when the battery rotates, the rubber removal wheel 4542 is driven to rotate, so that the adhesive tape on the rubber removal wheel 4542 is attached to the battery core.

Mainly referring to Figures 10 to 13, the blanking device 50 corresponds to the blanking station, including a clamping mechanism 51, a loading mechanism 52 and a pushing mechanism 53, the clamping mechanism 51 can clamp the winding device 40 to form The battery cells are transferred to the loading mechanism 52, and the pushing mechanism 53 can push the battery cells on the loading mechanism 52 to the detection device 60.

Specifically, the clamping mechanism 51 includes a blanking assembly 511, a first blanking driving member 512 and a second blanking driving member 513. The first blanking driving part 512 is arranged on the frame 10 and connected to the second blanking driving part 513, and the second blanking driving part 513 is connected to the blanking assembly 511. The first blanking driving member 512 can drive the blanking assembly 511 to rotate around the Y axis through the second blanking drive 513, and the second blanking drive 513 can drive the blanking assembly 511 to move along the X axis.

The blanking assembly 511 includes a clamping drive member 5111 and a material clamp 5112 that are connected. The clamping drive member 5111 is connected to the second blanking drive member 513 and can drive the material clamping 5112 to open and close. The loading mechanism 52 includes a loading drive 521 and a loading platform 522. The loading drive 521 is arranged on the frame 10 and connected to the loading platform 522. The loading drive 521 can drive the loading platform 522 along the Z axis. mobile. The material clamp 5112 is provided with a first avoidance groove 5113, the material carrier 522 is provided with a second avoidance groove 5221, the first avoidance groove 5113 and the second avoidance groove 5221 enable the material clamp 5112 to be alternately arranged with the material carrier 522 , So that the cells clamped by the material clamp 5112 can be supported on the material carrier 522. The second blanking driving member 513 can drive the clamping driving member 5111 and the material clamp 5112 to reset after the battery core is supported on the material carrier 522, so that the battery cell is transferred from the material clamp 5112 to the material carrier 522.

The pushing mechanism 53 includes a first pushing driving member 531, a second pushing driving member 532, and a pushing member 533. The first pushing driving member 531 is arranged on the frame 10 and connected to the second pushing driving member 532 . The second pushing driving member 532 is connected to the pushing member 533, and the pushing member 533 is provided with a receiving groove 5331 for accommodating the battery cell. The first pushing driving member 531 can drive the pushing member 533 to move along the Y axis through the second pushing driving member 532 so that the battery core is located in the accommodating groove 5331. The second pushing driving member 532 can drive the pushing member 533 to move along the X axis, so that the pushing member 533 pushes the cells from the loading table 522 to the detection device 60.

The process of unloading by the unloading device 50 is further described below: as shown in FIG. 2, the material clamp 5112 corresponds to the winding station in the initial position. After the material clamping driving member 5111 drives the material clamp 5112 to clamp the battery core formed by the winding device 40, the first cutting driving member 512 drives the second cutting driving member 513 to drive the material clamp 5112 to rotate 180 degrees around the Y axis. Then, the second blanking driving member 513 drives the clip 5112 with the cells to move along the X axis to above the loading table 522. Then, the loading driving member 521 drives the loading platform 522 to move along the Z axis. Since the material clamp 5112 is provided with a first avoidance groove 5113, and the material carrier 522 is provided with a second avoidance groove 5221, the material clamp 5112 and the material carrier 522 are alternately arranged so that the cells clamped by the material clamp 5112 can be supported in Loading platform 522 on. Then, the second blanking driving member 513 drives the clamping driving member 5111 and the material clamp 5112 to reset along the X axis. At this time, the battery cell is transferred from the material clamp 5112 to the material carrier 522. Then, the first blanking driving member 512 drives the second blanking driving member 513 to drive the material clamp 5112 to rotate and reset around the Y axis. At the same time, the first pushing driving member 531 drives the pushing member 533 to move along the Y axis through the second pushing driving member 532 so that the battery core is located in the accommodating groove 5331. Then, the second pushing driving member 532 pushes the pushing member 533 to move along the X axis, so as to push the cells from the loading table 522 to the detection device 60.

Understandably, in this embodiment, the material clamp 5112 is provided with a first avoiding groove 5113, and the material carrier 522 is provided with a second avoiding groove 5221. In other embodiments, it is also possible to only provide the avoiding groove on the material clamp 5112. When the loading drive 521 drives the loading platform 522 to move along the Z axis, the loading platform 522 can be accommodated in the avoidance slot, and the clip 5112 and the loading platform 522 are staggered to make the electrical clamp 5112 clamped. The core can be supported on the carrier 522. Of course, in other embodiments, it is also possible to only provide the avoidance groove on the carrier 522.

Mainly referring to FIGS. 10 and 13, the detection device 60 includes a short-circuit detection mechanism 61, and the short-circuit detection mechanism 61 includes a pressing table 611, a pressing mechanism 612, and a short-circuit detection assembly. The pressing table 611 is used to support the cells pushed by the pushing member 533, and the pressing mechanism 612 can press the cells. The short-circuit detection component is connected to the pressing mechanism 612, and the short-circuit detection component can perform short-circuit detection on the cell when the pressing mechanism 612 compresses the cell.

Specifically, the short circuit detection assembly includes a first conductive member 6131, a second conductive member 6132, and a short circuit tester 6133. The first conductive member 6131 and the second conductive member 6132 are both connected to the pressing mechanism 612, and the first conductive member 6131 and The second conductive member 6132 is also electrically connected to the short circuit tester 6133. When the pressing mechanism 612 presses the cell, the first conductive member 6131 abuts against one tab of the cell, and the second conductive member 6132 abuts against the other tab of the cell. When the short circuit tester 6133 detects that there is current, it indicates that the battery is good. On the contrary, it indicates that the battery is defective. In this way, the pressing mechanism 612 can also compress the electric core while detecting the short circuit of the electric core, so as to improve the production efficiency.

Further, referring mainly to FIGS. 10 and 11, the detection device 60 further includes a conveying mechanism 62 and a CCD detection assembly 63, and the CCD detection assembly 63 is connected to the frame 10. When the pusher 533 transfers the cells on the loading table 522 to the press table 611, the pusher 533 can also push the cells on the press table 611 to the conveying mechanism 62, and the CCD detection assembly 63 can support the conveying mechanism The cells on 62 undergo visual inspection.

It is worth mentioning that the width of the accommodating groove 5331 is greater than the width of the battery cell to match the distance between the battery cell on the loading table 522 and the battery cell on the pressing table 611, thereby ensuring that the pushing member 533 will be located When the cells on the loading table 522 are pushed to the pressing table 611 along the X axis, the pushing member 533 can simultaneously push the cells on the pressing table 611 to the conveying mechanism 62.

In addition, the detection device 60 also includes a waste rejection mechanism 64. The waste rejection mechanism 64 is arranged on the frame 10 and is electrically connected to the short-circuit detection assembly and the CCD detection assembly 63. The waste rejection mechanism 64 can detect the short-circuit detection assembly and the CCD. The battery cell detected as unqualified by the assembly 63 is pushed out of the conveying mechanism 62. In this embodiment, the detection device 60 also includes a waste box 65, the waste box 65 is connected to the frame 10, and the conveying mechanism 62 is located between the waste box 65 and the waste rejection mechanism 64, the waste rejection mechanism 64 can detect unqualified The battery cell is pushed into the waste box 65.

The above-disclosed are only preferred embodiments of the present invention. Of course, the scope of rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

A winding equipment, which is characterized by comprising a frame, a pole piece feeding device, a diaphragm feeding device, a winding device, a blanking device and a detection device;

The pole piece feeding device is used for conveying the pole piece to the winding device, and the pole piece feeding device includes a first feeding drive member, a second feeding drive member, a feeding base, a clamping assembly, and a scissors assembly , The first feeding drive member is connected to the frame and can drive the feeding base to move relative to the frame, and the second feeding drive member, the clamping assembly and the scissors assembly are all connected with The feeding base is connected, and the second feeding drive member can drive the clamping assembly to move relative to the feeding base;

The diaphragm feeding device is connected to the frame and is used to transfer the diaphragm to the winding device;

The winding device is connected to the frame and is used for winding the pole piece and the diaphragm into a battery cell;

The unloading device is connected to the frame, and is used to transport the battery core formed by the winding device to the detection device;

The detection device is connected to the rack and is used to detect whether the battery cell is qualified;

The pole piece feeding device is provided with two groups to transport the positive electrode piece and the negative electrode piece to the winding device, and the separator feeding device is also provided with two groups to separate the first separator and the second separator. Transported to the winding device, and the first separator is located between the positive electrode sheet and the negative electrode sheet, and the positive electrode sheet or the negative electrode sheet is located between the first separator and the second separator .
The winding device according to claim 1, wherein the blanking device includes a material clamping mechanism, a material loading mechanism, and a material pushing mechanism, and the material clamping mechanism can clamp the winding device formed by the winding device. The electric core is transferred to the loading mechanism, and the pushing mechanism can push the electric core on the loading mechanism to the detection device.
The winding device according to claim 2, wherein the clamping mechanism comprises a blanking assembly, a first blanking drive member, and a second blanking drive member, and the first blanking drive member is arranged at the On the frame and connected with the second blanking drive member, the second blanking drive member is connected with the blanking assembly, and the first blanking drive member can be driven by the second blanking drive A member drives the blanking assembly to rotate, and the second blanking drive member can drive the blanking assembly to move.
The winding device according to claim 3, wherein the blanking assembly comprises a material clamping driving member and a material clamp connected, and the clamping material driving member is connected with the second cutting driving member, and The material clamp can be driven to open and close, and the material loading mechanism includes a material loading driving member and a material loading table. The material loading driving member is arranged on the frame and connected with the material loading table. The material drive member can drive the material carrier to move to receive the cells clamped by the material clamp. At least one of the material clamp and the material carrier is provided with an escape slot, and the escape slot The material clamps can be arranged alternately with the material carrier, so that the batteries clamped by the material clamps can be supported on the material carrier, and the second feeding drive member can be installed on the material carrier. The electric core is supported on the material carrier to drive the material clamping driving member and the material clamp to reset.
The winding device according to any one of claims 2 to 4, wherein the pushing mechanism comprises a first pushing driving member, a second pushing driving member and a pushing member, and the first pushing The driving part is arranged on the frame and connected with the second pushing driving part, the second pushing driving part is connected with the pushing part, and the pushing part is provided with a place for accommodating In the accommodating slot of the battery, the first pushing driving member can drive the pushing member to move through the second pushing driving member so that the battery is located in the accommodating slot, The second pusher driving member can drive the pusher to move, so that the pusher pushes the battery cell from the loading mechanism to the detection device.
The winding device according to claim 1, wherein the detection device comprises a short-circuit detection mechanism, the short-circuit detection mechanism includes a material pressing table, a material pressing mechanism, and a short circuit detection assembly, and the material pressing table is used for supporting The cell is transferred by the blanking device, the pressing mechanism can compress the cell, the short-circuit detection assembly includes a first conductive element, a second conductive element and a short-circuit tester, the first Both the conductive member and the second conductive member are electrically connected to the short circuit tester, and the first conductive member and the second conductive member are both connected to the pressing mechanism, the first conductive member and the first conductive member The two conductive parts can respectively abut against the tabs of the battery core when the pressing mechanism compresses the battery core.
The winding equipment according to claim 6, wherein the detection device further comprises a conveying mechanism and a CCD detection assembly, the CCD detection assembly is connected to the frame, and the unloading device is When the cells of the station are transferred to the pressing table, the unloading device can also push the cells on the pressing table to the conveying mechanism, and the CCD detection assembly can The electric core on the conveying mechanism performs appearance inspection.
The winding device according to claim 7, wherein the detection device further comprises a waste rejection mechanism, the waste rejection mechanism is arranged on the frame, and is connected to the short circuit detection assembly and the CCD detection mechanism. The components are electrically connected, and the waste rejection mechanism can push the battery cells that are detected as unqualified by the short-circuit detection component and the CCD detection component out of the conveying mechanism.
The winding device according to claim 1, wherein the winding device comprises a winding mechanism, and the winding mechanism comprises a needle winding assembly, a shifting position assembly, a needle extraction assembly, a needle extraction assembly, and a winding mechanism. The driving assembly, the needle winding assembly includes a needle sleeve, a first winding needle, a second winding needle, a clamping needle and a needle opening member, the first winding needle, the second winding needle and the clamping needle are all Connected to the needle sleeve, the clamping needle is located between the first winding needle and the second winding needle, and a gap is provided between the clamping needle and the second winding needle, the The needle opening member is inserted in the needle sleeve and can move relative to the needle sleeve along the axial direction of the needle sleeve, and the needle winding assembly is provided with three groups;

The shifting station assembly is arranged on the frame and can drive the winding needle assembly to rotate between the winding station, the glueing station and the unloading station;

The needle extraction assembly and the needle extraction assembly are both connected to the frame, and the needle extraction assembly corresponds to the winding station, the needle extraction assembly corresponds to the unloading station, and the The needle ejection assembly can drive the needle sleeve and the needle opening member located in the winding station to respectively extend along the axial direction of the needle sleeve, and when the needle opening member extends, it can drive the clamping material The needle is close to the second winding needle, the needle drawing assembly can drive the needle sleeve and the needle opening member located in the unloading station to retract along the axial direction of the needle sleeve, and the material clamping The needle can be reset when the needle opening member is retracted;

The winding drive assembly is connected to the frame, and can drive the needle sleeve of the winding needle assembly to drive the first winding needle, the second winding needle and the clamping needle around the needle The axis of the sleeve rotates.
The winding device according to claim 1 or 9, wherein the winding device further comprises a first guide mechanism, and the first guide mechanism comprises a first guide driving member and a first guide wheel connected, The first guide driving member is connected to the frame and can drive the first guide wheel to move. The first guide mechanism is provided with two groups. The pole piece and the diaphragm pass through.
The winding device according to claim 10, wherein the winding device further comprises a second guide mechanism, and the second guide mechanism comprises a second guide driving member, a second guide wheel and a third guide wheel, The second guide driving member is connected to the first guide driving member and can drive the second guide wheel to move, the third guide wheel is connected to the frame, and the second guide mechanism is provided with two The first diaphragm and the positive electrode sheet can pass through between the second guide wheel and the third guide wheel of the second guide mechanism in one group, and the second guide wheel in the other group The second diaphragm and the negative electrode sheet can pass through between the second guide wheel and the third guide wheel of the mechanism.
The winding device according to claim 9, wherein the winding device further comprises a diaphragm cutting mechanism, the diaphragm cutting mechanism includes a cutter assembly and a pressing assembly, and the cutter assembly includes a connected cutter A knife driving member and a cutting knife, the cutting knife driving member is connected to the frame, and can drive the cutting knife to cut the diaphragm between the winding station and the glueing station, so The material pressing assembly includes a material pressing driving member and a material pressing wheel, the material pressing driving part is connected to the frame and capable of driving the material pressing wheel against the winding station and the glueing station Between the diaphragm.
The winding device according to claim 12, wherein the diaphragm cutting mechanism further comprises an adjustment assembly, the adjustment assembly includes an adjustment drive member and an adjustment wheel, and the adjustment drive member is connected to the press material drive member , And capable of driving the adjusting wheel to approach the battery core of the gluing station, and the adjusting wheel can restrict the unwound diaphragm and the pole piece on the gluing station from falling down.
9. The winding device according to claim 9, wherein the winding device further comprises a glue applying mechanism, and the glue applying mechanism comprises:

The glue feeding assembly includes a glue feeding driving part and a glue laminating part connected, the glue feeding driving part is connected to the frame and can drive the glue laminating part to reciprocate along the glue feeding direction to pull out the tape;

The pressure-gluing assembly includes a connected pressure-gluing driving part and a pressure-gluing part, the pressure-gluing driving part is connected with the frame and can drive the pressure-gluing part to compress the tape;

The rubber cutting assembly includes a rubber cutting driving member and a rubber cutting knife connected, the rubber cutting driving member is connected to the frame and can drive the rubber cutting knife to move to cut the tape; and

The glue taking assembly includes a glue taking drive part and a glue taking wheel connected, the glue taking drive part is connected to the frame and can drive the glue taking wheel to reciprocate between the glue taking position and the glue sticking position ；

When the rubber taking wheel is at the glue taking position, the axial direction of the rubber taking wheel is parallel to the glue feeding direction, and the rubber taking wheel can absorb the cut tape, and the rubber taking wheel is located In the glue application position, the axial direction of the rubber take-off wheel is parallel to the axial direction of the battery core, and the glue take-off wheel can stick the tape to the glue stick along the axial direction of the battery core On the cell of the station.
The winding device according to claim 14, wherein the pressing driving member comprises a first pressing driving part and a second pressing driving part connected, and the first pressing driving part and the Rack connection, the second pressing drive part is connected with the pressing part, and the first pressing drive part can drive the pressing part along the glue feeding direction through the second pressing drive part Moving, the second glue pressing driving member can drive the glue pressing part to compress the adhesive tape to the glue taking wheel.
The winding device according to claim 14, wherein the glue cutting drive member is connected to the glue feeding drive member, and the glue feeding drive member can drive the glue laminating part and the glue cutting mechanism together. It reciprocates along the glue feeding direction.
The winding device according to claim 14, wherein the glue feeding assembly further comprises an auxiliary driving part, the auxiliary driving part is connected to the glue feeding driving part, and the glue clamping part is connected to the auxiliary driving part. The glue feeding driving member can drive the glue clamping part to move in the glue feeding direction through the auxiliary driving member, and the auxiliary driving member can drive the glue clamping part in the direction close to the rubber take-up wheel mobile.
The winding device according to claim 14, wherein the glue taking mechanism further comprises a mounting member, the mounting member is rotatably connected with the frame, and the mounting member is connected with the rubber taking wheel, The glue taking drive member includes a first glue taking drive member and a second glue taking drive member, the first glue taking drive member is connected to the rack, and the second glue taking drive member is connected to the mounting member Both the first glue taking drive member and the second glue taking drive member can drive the mounting member to rotate, so that the glue taking wheel swings between the glue taking position and the glue applying position.