WO2020207184A1

WO2020207184A1 - Winding device and pole feeding apparatus thereof

Info

Publication number: WO2020207184A1
Application number: PCT/CN2020/079002
Authority: WO
Inventors: 姚太权; 顾力玮; 张素文; 是炜; 赵留杰; 张涛
Original assignee: 无锡先导智能装备股份有限公司
Priority date: 2019-04-11
Filing date: 2020-03-12
Publication date: 2020-10-15
Also published as: DE212020000586U1

Abstract

A pole feeding apparatus (100), comprising a sheet inserting mechanism (10), a cutting mechanism (20) and a feeding mechanism (30) successively arranged along the conveyance direction of a material strip (300). The sheet inserting mechanism is used to clamp the material strip. The cutting mechanism is used to cut the material strip. After the material strip is cut, the sheet inserting mechanism further conveys the material strip in a direction close to a winding needle (200) or the cutting mechanism moves in a direction away from the winding needle, so that the leading end of the material strip is exposed to the cutting mechanism. The feeding mechanism is used to clamp the leading end of the material strip and move in the direction close to the winding needle, so that the leading end of the material strip is close to and fed into the winding needle. Further disclosed is a winding device.

Description

Winding equipment and its pole piece feeding device

Related application

This application requires the application on April 11, 2019, the application number is 201920487648.4, the name is "cutting device"; the application on November 8, 2019, the application number is 201911088453.3, the name is "winding equipment and its pole piece feeding The priority of the Chinese patent application for "device" is hereby incorporated by reference in its entirety.

Technical field

This application relates to the technical field of battery automation equipment, and more specifically, to a winding device and its pole piece feeding device.

Background technique

During the production process of the battery, a pole piece feeding device needs to be used to feed the pole piece to the feeding position, so that the pole piece (including the cathode piece and the anode piece) and at least two layers of separators are wound together to prepare the battery core. The existing pole piece feeding device generally clamps the head end of the pole piece by two clamping plates after the pole piece is cut, and sends the head end of the pole piece to the feeding position in the direction of the feeding position. Since the free section of the head end is very long after the pole piece is cut, it is difficult to control the alignment between the head end of the pole piece and the feeding position, and the head end of the pole piece is in a relaxed state without tension, and it is easy to swing at will, making the head end of the pole piece unable to be It is accurately delivered to the feeding position.

Summary of the invention

In view of this, the present application discloses a winding device and a pole piece feeding device thereof to solve the technical problem of low alignment between the head end of the pole piece and the feeding position.

A pole piece feeding device for conveying a material tape to a winding needle, characterized in that the pole piece feeding device includes a sheet inserting mechanism, a cutting mechanism and a material feeding device which are sequentially arranged along the conveying direction of the material tape Mechanism, the inserting mechanism is used to clamp the tape, and the cutting mechanism is used to cut the tape, wherein after the tape is cut, the inserting mechanism further moves closer to the roll The direction of the needle conveys the tape or the cutting mechanism moves away from the winding needle, so that the leading end of the tape is exposed to the cutting mechanism, and the feeding mechanism is used for clamping The head end of the material tape moves toward the winding needle, so that the head end of the material tape approaches and is fed into the winding needle.

In the above pole piece feeding device, the inserting mechanism is arranged upstream of the cutting mechanism and the feeding mechanism is arranged downstream of the cutting mechanism. On the one hand, the inserting mechanism clamps the tape before the cutting mechanism cuts the tape. , Can make the material belt in a tensioned state for cutting, on the other hand, after the cutting mechanism is cut, the feeding mechanism clamps the first end of the material belt to move closer to the winding needle, not only can tension the material Because the leading end of the material tape is clamped and sent to a position closer to the winding needle, it can be ensured that the leading end of the material belt can be accurately fed to the winding needle, so as to improve the entry of the leading end of the material tape and the winding needle. Alignment of the material position.

In an embodiment, the pole piece feeding device further includes a mounting plate, a first transmission mechanism, a second transmission mechanism, and a third transmission mechanism arranged on the mounting plate, and parallel arrangement on the mounting plate The first slide rail and the second slide rail, the inserting mechanism and the cutting mechanism are slidably supported on the first slide rail, and are respectively driven by the first transmission mechanism and the second transmission mechanism along the first A slide rail moves, the feeding mechanism is slidably supported on the second slide rail, and moves along the second slide rail under the transmission of the third transmission mechanism.

In one embodiment, the pole piece feeding device further includes a guiding mechanism, which is arranged between the inserting piece mechanism and the cutting mechanism and/or the cutting mechanism and the feeding mechanism Between the mechanisms, it is used to guide the head end of the material belt.

In one embodiment, the guide mechanism includes a scroll spring and a wire, and the scroll spring is provided on one of the insert mechanism and the cutting mechanism and/or the cutting mechanism and the cutting mechanism On one of the feeding mechanisms, one end of the wire is connected to the scroll spring, and the other end of the wire is connected to the other one of the insert mechanism and the cutting mechanism and/or the The other of the cutting mechanism and the feeding mechanism, the scroll spring changes with the distance between the inserting mechanism and the cutting mechanism and/or the cutting mechanism and the feeding mechanism The distance between the material mechanisms changes to rewind or release the wire, and the material tape abuts on the wire.

In one embodiment, the pole piece feeding device further includes a correction mechanism and a first detection mechanism, and the correction mechanism is arranged upstream of the inserting mechanism along the conveying direction of the material belt for The width direction of the material tape corrects the deviation of the material tape entering the pole piece feeding device; the first detection mechanism is arranged between the correction mechanism and the inserting mechanism, and is used to detect the deviation after the correction The mechanism corrects the position of the material belt, and feeds back the position of the material belt to the correction mechanism.

In an embodiment, the first detection mechanism includes a base, a sliding rod, an adjusting rod, a sensor assembly, a first guide assembly, a first fastener, and a second fastener, and the sliding rod is disposed on the base. Above, the sensor assembly and the first guide assembly are slidably supported on the sliding rod, the first fastener is used to connect the sensor assembly with the adjustment rod, and the second fastener Used to connect the first guide assembly with the adjustment rod, the adjustment rod is used to adjust the sensor assembly connected with the adjustment rod and/or the first guide assembly on the sliding rod The position, the sensor assembly is used to detect the position of the material strip, and the first guide assembly is correspondingly arranged at the position of the tab of the material strip for guiding the tab.

In one embodiment, the sensor assembly includes a first connecting part and a sensor arranged on the first connecting part, and the first guide assembly includes a second connecting part and a sensor arranged on the second connecting part. The first guide plate, the first connecting part and the second connecting part are slidably arranged on the sliding rod, the first detection mechanism further includes an adjusting screw, the adjusting screw is rotatably arranged on the base ,among them,

The driving end of the adjusting screw is threadedly connected with the first connecting portion, and the adjusting screw is used to adjust the position of the first connecting portion on the sliding rod; or

The driving end of the adjusting screw is threadedly connected with the second connecting portion, and the adjusting screw is used for adjusting the position of the second connecting portion on the sliding rod.

In one embodiment, the pole piece feeding device further includes a second detection mechanism and a third detection mechanism, and the second detection mechanism and the third detection mechanism are provided on the inserting mechanism and the cutting mechanism. Between the mechanisms, the second detection mechanism is used to detect the cutting position of the material tape; the third detection mechanism is correspondingly arranged at the tab position of the material tape, and is used to detect whether the tab has Corner.

In an embodiment, the third detection mechanism includes a detection bracket and a first sensor and a second sensor arranged on the detection bracket, and the tab has a first end connected to the strip and is remote from the The second end of the connection between the tab and the strip, the first sensor and the second sensor are arranged at intervals along the connection direction of the first end and the second end, the first sensor It is used to detect the length of the tab at the position corresponding to the first sensor, the second sensor is used to detect the length of the tab at the position corresponding to the second sensor, and then according to the first sensor. The ratio of the length of the tab detected by one sensor to the length of the tab detected by the second sensor is used to determine whether the tab is bent.

In one embodiment, the detection bracket includes a first mounting part, a second mounting part, and a connecting part connected between the first mounting part and the second mounting part. The second mounting parts are arranged in parallel and spaced apart, the first sensor and the second sensor each include a transmitting end and a receiving end, and the transmitting end and the receiving end are respectively arranged on the first mounting part and the first mounting part. Second, the installation department.

In one embodiment, the feeding mechanism drives the head end of the material tape to approach the winding needle in a linear movement, and feeds the head end of the material tape into the winding needle in a rolling manner. The feeding mechanism further corrects the head end of the material belt in the width direction of the material belt.

In an embodiment, the pole piece feeding device includes a mounting plate, and the feeding mechanism includes:

A fixed seat, slidably supported on the mounting plate;

The first fixing bracket is slidably supported on the fixing seat;

The driving roller and the driven roller are rotatably supported on the first fixed bracket;

The clamping drive member is used to drive the driving roller and the driven roller to be relatively close to each other, thereby clamping the head end of the material belt, wherein the fixing seat is driven by the third transmission mechanism to the The winding needle moves, and then the head end of the material belt is driven to approach the winding needle in a linear movement;

A deviation-correcting drive member for driving the first fixing bracket to move relative to the fixing base, and then correcting the deviation of the leading end of the material belt in the width direction of the material belt;

The feeding driving member drives the driving roller to drive the driven roller to roll, and then feeds the leading end of the material belt into the winding needle in a rolling manner.

In an embodiment, the cutting mechanism includes a second fixed support, a first cutting assembly provided on the second fixed support, a first driving assembly for driving the movement of the first cutting assembly, A second cutter assembly arranged on the second fixing bracket and opposite to the first cutter assembly and a second driving assembly for driving the second cutter assembly to move, the second cutter The assembly includes a second cutter seat, a second cutter installed on the second cutter seat, a second pressing block arranged above the second cutter seat, and driving the second cutter seat with the The second pressure blocks are separated from each other and the third drive assembly.

In an embodiment, the third driving assembly includes an elastic member, one end of the elastic member abuts against the second pressure block, and the other end abuts against the second cutter seat.

In one embodiment, the elastic member is a spring.

In one embodiment, the third driving assembly includes a third guide post and a third limit block provided on the third guide post, and one end of the third guide post is fixed to the second pressure block After being connected, the other end slides through the second cutter seat and is fixedly connected with the third limiting block.

In one embodiment, the first cutting tool assembly includes a first cutting tool seat and a first cutting tool fixedly arranged on the first cutting tool seat.

In one embodiment, the first drive assembly includes an air cylinder for driving the movement of the first cutting tool holder, a first guide post, and a first limit block arranged on the first guide post, and the first One end of the guide column is fixedly connected to the first cutting tool holder or the second fixed support, and the other end slides through the second fixed support or the first cutting tool holder to connect with the first limiting block Fixed connection.

In an embodiment, the second drive assembly includes a motor, a second screw rod connected to the output end of the motor, a second screw nut arranged on the second screw rod, and the second screw rod. A drive plate connected with a rod nut, at least one wedge block connected with the drive plate, a cam clamped by the wedge block, and a cam fixing seat for fixing the cam.

In one embodiment, the second driving assembly further includes a second guide post and a second limiting block arranged on the second guide post. One end of the second guide post is connected to the second cutter The seat or the second fixed bracket is fixedly connected, and the other end slides through the second fixed bracket or the second cutter seat and then is fixedly connected with the second limiting block.

In one embodiment, there are two wedge-shaped blocks.

In an embodiment, the cutting mechanism further includes an air suction hole provided on the second pressure block and an air suction pipe communicating with the air suction hole.

In one embodiment, the pole piece feeding device further includes a waste removal mechanism arranged between the feeding mechanism and the winding needle or the cutting mechanism. When the material belt conveyed by the needle is a waste material section, the waste material removal mechanism is used for winding the waste material section.

In an embodiment, the waste removal mechanism includes:

The translation mechanism includes a first mounting base, a fourth sliding base, and a translation drive assembly provided on the first mounting base, the fourth sliding base is movably connected to the first mounting base along a first direction, and Drive connection with the translation drive assembly;

The winding mechanism includes a winding needle and a rotary drive member arranged on the fourth sliding seat, the winding needle is rotatably connected to the fourth sliding seat about its own axis, and is in driving connection with the rotary drive member; and

The blocking mechanism is arranged on the first mounting seat;

Wherein, during the movement of the fourth sliding seat in the first direction, the moving path of the winding needle includes winding positions, blocking positions, and avoiding positions arranged in sequence. When the winding When the needle is in the winding position, the winding needle is used to wind the waste section; when the winding needle is at the stop position, the stop mechanism resists the waste section on the winding needle , To prevent the waste section from moving to the avoiding position with the winding needle.

In one embodiment, the stopper mechanism includes a third fixed bracket, a stopper drive, and a stopper, the third fixed support is fixedly connected to the first mounting seat, and the stopper drive is arranged at In the third fixing bracket, the stopper is provided at the driving end of the stopper driving member to be driven by the stopper driving member to move in a second direction that is at an angle to the first direction;

The movement of the stopper in the second direction includes a pushing position. When the stopper is in the pushing position, the stopper and the retractor moving to the stopper position The waste material section on the winding needle is opposed to each other to prevent the waste material section from moving to the avoiding position with the winding needle.

In one embodiment, the stopper includes a resisting portion and a shift strip fixedly connected to the resisting portion, the resisting portion can be matched with the peripheral surface of the winding needle, and the shift strip can be inserted The gap of the winding needle.

In one embodiment, the waste removal mechanism further includes a pressing component, the pressing component includes a pressing mounting seat, a swing rod, a pressing piece, and a torsion spring, and the pressing mounting seat is fixedly connected to the first Four sliding seats, one end of the pendulum rod is rotatably connected to the pressure material mounting seat around a rotation axis, and the other end of the pendulum rod is fixedly connected with the pressure material;

The torsion spring is arranged on the pressing material mounting seat and has a first torsion arm and a second torsion arm, the first torsion arm is connected to the pressing material fixing seat, and the second torsion arm is connected to the A swing rod is used to provide a pre-tightening force for rotating the pressing member around the rotation axis in a direction close to the winding needle.

In one embodiment, the waste rejection mechanism further includes a second guide assembly, the second guide assembly includes a guide seat fixedly connected to the fourth sliding seat and a guide seat rotatably connected to the guide seat about its own axis The guide roller is used to guide the waste section input to the winding needle.

In an embodiment, the second guide assembly further includes a fourth guide plate disposed on the guide seat, and the fourth guide plate is used to align the poles of the waste section input to the winding needle. The ear is guided.

In an embodiment, the translation drive assembly includes a translation drive, a driving wheel, a transmission belt, and a driven wheel;

The translation driving member is arranged on the first mounting seat, the driving wheel is arranged on the output shaft of the translation driving member, and the driven wheel is rotatably connected to the first mounting seat about its own axis and is connected to The driving wheel is arranged along the first direction, and the transmission belt is sleeved between the driving wheel and the driven wheel, and is fixedly connected to the fourth sliding seat.

In one embodiment, the translation mechanism further includes a translation rail provided on the first mounting seat, the fourth sliding seat is movably connected to the translation rail along the translation rail, and the translation rail Parallel to the first direction.

In an embodiment, the waste removal mechanism further includes a dust collection assembly located below the winding needle, the dust collection assembly includes a collection box and a collection drive member, the collection box being along the first direction It is movably connected to the fourth sliding seat, and the collecting drive member is arranged on the fourth sliding seat and is drivingly connected to the collecting box.

A winding device includes a winding needle and the pole piece feeding device as described in any of the above embodiments, and the winding needle is used to wind the material tape input by the pole piece feeding device to form a battery core.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application 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 drawings in the following description are only These are the embodiments of the present application. For those of ordinary skill in the art, other drawings may be obtained from the disclosed drawings without creative work.

FIG. 1 is a schematic structural diagram of a pole piece feeding device provided by an embodiment of the application;

2 is a schematic diagram of the structure of the inserting mechanism of the pole piece feeding device shown in FIG. 1;

Fig. 3 is a left structural schematic diagram of some elements of the pole piece feeding device shown in Fig. 1;

Fig. 4 is a schematic diagram of the right structure of some elements in Fig. 3;

Fig. 5 is a schematic structural view of the guide mechanism of the pole piece feeding device shown in Fig. 1 from a perspective;

Fig. 6 is a schematic structural diagram of the guide mechanism of the pole piece feeding device shown in Fig. 1 from another perspective;

7 is a schematic diagram of the structure of the first detection mechanism of the pole piece feeding device shown in FIG. 1;

8 is a schematic diagram of the structure of the second detection mechanism and the third detection mechanism of the pole piece feeding device shown in FIG. 1;

FIG. 9 is a schematic structural view of the feeding mechanism of the pole piece feeding device shown in FIG. 1 from a viewing angle;

FIG. 10 is a schematic structural diagram of the feeding mechanism of the pole piece feeding device shown in FIG. 1 from another perspective;

11 is a schematic structural view of the cutting mechanism of the pole piece feeding device shown in FIG. 1 omitting some components;

12 is a schematic structural view of the cutting mechanism of the pole piece feeding device shown in FIG. 1 omitting another part of the components;

Figure 13 is a schematic diagram of the positional relationship between the pole piece feeding device and the winding needle shown in Figure 1;

14 is a schematic structural diagram of a waste rejection mechanism of the pole piece feeding device shown in FIG. 1;

Figure 15 is a plan view of the waste removal mechanism shown in Figure 14;

Figure 16 is a side view of the waste removal mechanism shown in Figure 14;

FIG. 17 is a schematic diagram of the structure of the blocking mechanism of the waste rejection mechanism shown in FIG. 15.

detailed description

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

Please refer to FIG. 1, the pole piece feeding device 100 provided in an embodiment of the present application is used for conveying the material belt 300 to the winding needle 200. The pole piece feeding device 100 includes a piece inserting mechanism 10, a cutting mechanism 20, and a feeding mechanism 30 which are sequentially arranged along the conveying direction of the material tape 300. The piece inserting mechanism 10 is used for clamping the material tape 300, and the cutting mechanism 20 is used for Cut the material tape 300, wherein after the material tape 300 is cut, the inserting mechanism 10 further conveys the material tape 300 in the direction close to the winding needle 200 or the cutting mechanism 20 moves away from the winding needle 200, so that the The head end is exposed from the cutting mechanism 20, and the feeding mechanism 30 is used to clamp the head end of the material tape 300 and move toward the winding needle 200 so that the head end of the material tape 300 approaches and is fed into the winding needle 200.

In the embodiment of the present application, the inserting mechanism 10 is arranged upstream of the cutting mechanism 20 and the feeding mechanism 30 is arranged downstream of the cutting mechanism 20. On the one hand, before the cutting mechanism 20 cuts the tape 300, the inserting mechanism 10 Clamping the material tape 300 can make the material tape 300 in a tensioned state for cutting. On the other hand, after the cutting mechanism 20 finishes cutting, the feeding mechanism 30 clamps the head end of the material tape 300 toward the winding needle Moving in the direction of 200 can not only tension the material belt 300, but also because the leading end of the material belt 300 is clamped and sent to a position closer to the winding needle 200, it can ensure that the leading end of the material belt 300 can be accurately fed to the winding. Needle 200 to improve the alignment between the leading end of the tape 300 and the feeding position of the winding needle 200.

Among them, in this embodiment, as shown in FIG. 1, the conveying direction of the material belt 300 is the arrow direction shown in the figure, and the inserting mechanism 10, the cutting mechanism 20, and the feeding mechanism 30 follow the arrow shown in the figure. The directions are set in sequence. The working principle of the pole piece feeding device 100 in this embodiment is generally as follows: when a cell is about to be wound, the inserting mechanism 10 acts to clamp the material tape 300, and the cutting mechanism 20 cuts the material tape 300. The winding needle 200 rotates to finish the winding of the tape 300 to complete the winding of the previous cell. The cut tape 300 is clamped by the inserting mechanism 10, and the inserting mechanism 10 first clamps the head of the pole piece tape 300 toward The direction of the winding needle 200 moves for a short distance or the cutting mechanism 20 moves a short distance in the direction away from the winding needle 200 so that the leading end of the material tape 300 extends out of the cutting mechanism 20, and the feeding mechanism 30 moves away from the winding needle 200. Move in the direction of the tape 300 to the position of the head end of the tape 300, clamp the head end of the tape 300, and move in the direction close to the winding needle 200. At this time, because the head end of the material tape 300 is clamped and sent close to the winding needle 200, the position of the material tape 300 is accurate. Finally, the feeding mechanism 30 rotates to convey the material tape 300 toward the winding needle 200, and the winding needle 200 winds the head end of the material tape 300 and continues to rotate until a battery core The winding is complete.

Wherein, in one embodiment, during the process of moving the leading end of the material tape 300 held by the feeding mechanism 30 in a direction close to the winding needle 200, the inserting mechanism 10 may clamp the material tape 300 and interact with the feeding mechanism 30. Synchronously move towards the winding needle 200. In another embodiment, when the feeding mechanism 30 clamps the leading end of the tape 300 and moves in the direction close to the winding needle 200, the inserting mechanism 10 can loosen the tape 300, and the inserting mechanism 10 does not follow the inserting mechanism. The material mechanism 30 moves.

Wherein, in this embodiment, as shown in FIG. 2, the sheet-inserting mechanism 10 may include a mounting bracket 12, a fixed pinch roller 14 arranged on the mounting bracket 12, and a movable pinch roller 16 arranged opposite to the fixed pinch roller 14. The nip roller 16 is arranged on the movable nip roller seat 18, the movable nip roller seat 18 is connected to one end of the guide post 11, the guide post 11 is slidably arranged on the mounting bracket 12, and the mounting bracket 12 is also provided with a clamping cylinder 13 and a clamping cylinder 13 The driving end is connected to the movable pinch roller base 18. The clamping cylinder 13 can drive the movable clamping roller 16 to move relative to the fixed clamping roller 14 to clamp or loosen the material belt 300.

Of course, in other embodiments, the sheet-inserting mechanism 10 may also adopt other types of structures, which are not specifically limited in the embodiment of the present application.

In this embodiment, as shown in Figures 1, 3 and 4, the pole piece feeding device 100 further includes a mounting plate 40, a first transmission mechanism 50, a second transmission mechanism 60, and a second transmission mechanism 50 arranged on the mounting plate 40. The three transmission mechanism 70 and the first slide rail 42 and the second slide rail 44 arranged in parallel on the mounting plate 40. The inserting mechanism 10 and the cutting mechanism 20 are slidably supported on the first slide rail 42, and move along the first slide rail 42 under the transmission of the first transmission mechanism 50 and the second transmission mechanism 60, and the feeding mechanism 30 is slidably supported on The second sliding rail 44 moves along the second sliding rail 44 under the transmission of the third transmission mechanism 70.

Specifically, the mounting plate 40 is provided with a first slide rail 42 and a second slide rail 44 extending along the conveying direction of the strip 300 (the up-and-down direction shown in FIG. 3), and the first slide rail 42 is slidably provided with a first slide rail. The sliding block 41 and the second sliding block 43, the third sliding block 45 is slidably arranged on the second sliding rail 44, the first sliding seat 46 is arranged on the first sliding block 41, the inserting mechanism 10 is arranged on the first sliding seat 46, A sliding seat 46 is in power connection with the first transmission mechanism 50. The first transmission mechanism 50 can drive the first sliding seat 46 to move up and down, thereby driving the insert mechanism 10 on the first sliding seat 46 to move up and down. A second sliding seat 47 is provided on the second slide 43, and a cutting mechanism 20 is provided on the second slide 47. The second slide 47 and the second transmission mechanism 60 are power connected, and the second transmission mechanism 60 can drive the second slide. 47 moves up and down. A third sliding seat 48 is provided on the third sliding block 45, and a feeding mechanism 30 is provided on the third sliding seat 48. The third sliding seat 48 and the third transmission mechanism 70 are power connected, and the third transmission mechanism 70 can drive the third sliding seat. 48 moves up and down. By arranging the inserting mechanism 10 and the cutting mechanism 20 on the first slide rail 42, and the feeding mechanism 30 on the second slide rail 44, the movement interference of the feeding mechanism 30 and the cutting mechanism 20 can be avoided, and the feeding mechanism is improved. The stroke of the agency 30.

Optionally, as shown in FIG. 3, the number of the first slide rail 42 and the number of the second slide rail 44 are both two, and the two second slide rails 44 are arranged between the two first slide rails 42. The block 41 is slidably connected to the two first slide rails 42, the second slide 43 is slidably connected to the two first slide rails 42, and the third slide 45 is slidably connected to the two second slide rails 44 to make the first slide The movement of the seat 46, the second sliding seat 47 and the third sliding seat 48 is more stable.

3 and 4, the first transmission mechanism 50 includes a first motor 51, a first screw 52 and a first screw nut 53, the first screw 52 is rotatably arranged on the mounting plate 40, and the The axial direction of a screw rod 52 is parallel to the extension direction of the first slide rail 42, and the driving end of the first motor 51 is connected to the first screw rod 52 for driving the first screw rod 52 to rotate. The first screw nut 53 is screwed to the first screw 52 and connected to the first sliding seat 46. When the first screw 52 rotates, the first screw nut 53 drives the first sliding seat 46 to move up and down relative to the mounting plate 40.

Optionally, in this embodiment, the first motor 51 is connected to the first screw 52 through a timing belt assembly, and the first screw 52 is arranged on the back of the mounting plate 40. Specifically, the first motor 51 is arranged on the first motor fixing base 54, the drive end of the first motor 51 is provided with a synchronization wheel 55, the first screw 52 is arranged on the first screw support 56, and the first screw support The seat 56 is provided on the back of the mounting plate 40. One end of the first screw rod 52 is provided with a synchronization wheel 55. The two synchronization wheels 55 are connected by a timing belt 57. The first screw rod 52 is provided with a first screw nut 53. The screw nut 53 is connected to the first sliding seat 46 through a driving block. The first motor 51 drives the first screw rod 52 to rotate through the timing belt assembly, and then drives the first sliding seat 46 to move up and down. By adopting the synchronous belt assembly to transfer the first motor 51 and the first screw 52, the structure of the first transmission mechanism 50 can be made more compact, and the volume of the first transmission mechanism 50 can be reduced. Mounting the first screw 52 on the back of the mounting plate 40 can prevent the first screw 52 from interfering with the sheet insertion mechanism 10, the cutting mechanism 20 and the feeding mechanism 30 on the main surface of the mounting plate 40.

In another embodiment, the first motor 51 may also be connected to the first screw rod 52 through a coupling or other elements, which is not specifically limited in the embodiment of the present application. The structures of the second transmission mechanism 60 and the third transmission mechanism 70 are similar to the structure of the first transmission mechanism 50. For details, please refer to the configuration of the first transmission mechanism 50, which will not be repeated here.

Further, the pole piece feeding device 100 also includes a guide mechanism 80. Please refer to Figures 1, 5 and 6. The guide mechanism 80 is provided between the inserting mechanism 10 and the cutting mechanism 20 for aligning the first part of the material belt 300. To avoid random swinging of the leading end of the material belt 300.

Among them, in this embodiment, the guide mechanism 80 includes a spiral spring (not shown in the figure) and a wire 81. The spiral spring is provided on one of the insert mechanism 10 and the cutting mechanism 20. One end of the wire 81 Connected to the spiral spring, the other end of the wire 81 is connected to the other of the insert mechanism 10 and the cutting mechanism 20. The spiral spring winds or releases the wire 81 according to the change of the distance between the inserting mechanism 10 and the cutting mechanism 20, and the material tape 300 abuts on the wire 81.

Specifically, in one embodiment, the spiral spring is provided on the insert mechanism 10, one end of the wire 81 is connected to the spiral spring, and the other end of the wire 81 is connected to the cutting mechanism 20 through a first pressing block or the like. When the sheet mechanism 10 and the cutting mechanism 20 move relative to each other so that the distance between the two changes, the wire 81 can be contracted or extended under the action of the spiral spring to keep the tension state at all times. The strip 300 between the cutting mechanisms 20 is supported on the wire 81, so that the strip 300 and its head end can be prevented from swinging randomly.

It is understandable that, in another embodiment, the scroll spring may also be provided on the cutting mechanism 20, one end of the wire 81 is connected to the scroll spring, and the other end of the wire 81 is connected to the insert mechanism 10 through the first pressing block or the like. The connection process is the same as that in the previous embodiment, and will not be repeated here.

In another embodiment, the guide mechanism 80 may also be arranged between the cutting mechanism 20 and the feeding mechanism 30, the scroll spring is arranged on one of the cutting mechanism 20 and the feeding mechanism 30, and one end of the wire 81 Connected to the spiral spring, the other end of the wire 81 is connected to the other of the cutting mechanism 20 and the feeding mechanism 30. The spiral spring winds up or releases the wire 81 as the distance between the cutting mechanism 20 and the feeding mechanism 30 changes, and the material tape 300 abuts on the wire 81.

In other embodiments, the guiding mechanism 80 can also be set at any position where the material belt 300 needs to be guided. The embodiment of the present application does not make specific limitations, and can be set flexibly according to needs.

Further, as shown in FIG. 1, the pole piece feeding device 100 further includes a correction mechanism 90a and a first detection mechanism 110. The correction mechanism 90a is arranged upstream of the sheet insertion mechanism 10 along the conveying direction of the material belt 300, and is used The width direction of the belt 300 corrects the material belt 300 entering the pole piece feeding device 100; the first detection mechanism 110 is arranged between the correction mechanism 90a and the sheet insertion mechanism 10, and is used to detect the material belt after being corrected by the correction mechanism 90a The position of the tape 300 is fed back to the correction mechanism 90a to control the correction mechanism 90a to perform correction.

Wherein, the deviation correcting mechanism 90a may be a snake-shaped deviation correcting mechanism, and the snake-shaped deviation correcting mechanism can adopt the settings in the prior art, which will not be repeated here. After the material tape 300 enters the serpentine correction mechanism for correction, the output material tape 300 passes through the first detection mechanism 110 and then enters the sheet insertion mechanism 10. Since the first detection mechanism 110 can detect and feed back the position of the material belt 300 to the serpentine correction mechanism in real time, so that the serpentine correction mechanism can adjust the position of the material belt 300 in time, thereby ensuring that the position of the material belt 300 is accurate.

In this embodiment, the correcting mechanism 90a and the inserting mechanism 10 can be arranged on the first slide 46 at the same time, so that the correcting mechanism 90a and the inserting mechanism 10 are always kept in a relatively static state, so that the inserting mechanism 10 and The material belt 300 between the correction mechanism 90a is always kept in a tensioned state.

Wherein, please refer to FIG. 7, the first detection mechanism 110 includes a base 111, a sliding rod 112, an adjusting rod 113, a sensor assembly 114, a first guide assembly 115, a first fastener 116 and a second fastener 117, and a sliding rod 112 is arranged on the base 111, the sensor assembly 114 and the first guide assembly 115 are slidably supported on the sliding rod 112, the first fastener 116 is used to connect the sensor assembly 114 to the adjusting rod 113, and the second fastener 117 is used to Connect the first guide assembly 115 with the adjustment rod 113, the adjustment rod 113 is used to adjust the sensor assembly 114 connected to the adjustment rod 113 and/or the position of the first guide assembly 115 on the sliding rod 112, and the sensor assembly 114 is used to detect the material For the position of the belt 300, the first guide component 115 is correspondingly arranged at the position of the tab of the material belt 300 for guiding the tab.

Specifically, the base 111 is arranged on the first sliding seat 46, two connecting blocks 118 are arranged on the base 111, and sliding rods 112 are arranged on the two connecting blocks 118, and the sensor assembly 114 and the first guide assembly 115 are slidably supported on the sliding rods. 112 on. An adjustment rod 113 is connected between the sensor assembly 114 and the first guide assembly 115, and the sensor assembly 114 is fastened or loosened by the first fastener 116 and the adjustment rod 113. The first guide assembly 115 is fastened or loosened by the second fastener 117 and the adjusting rod 113. When the first fastener 116 is tightened, the adjustment rod 113 can be manually used to quickly adjust the position of the sensor assembly 114, and when the second fastener 117 is tightened, the adjustment rod 113 can be manually used to quickly adjust the position of the first guide assembly 115. When the first fastener 116 and the second fastener 117 are both tightened, the position of the sensor assembly 114 and the first guide assembly 115 on the sliding rod 112 can be quickly adjusted manually by using the adjustment rod 113 to lift the sensor assembly 114 and the second The adjustment efficiency of a guide assembly 115.

Further, as shown in FIG. 7, the sensor assembly 114 includes a first connecting portion 1141 and a sensor 1142 disposed on the first connecting portion 1141, and the first guide assembly 115 includes a second connecting portion 1151 and a second connecting portion 1151.上的first guide plate 1152.

Specifically, the first connecting portion 1141 and the second connecting portion 1151 are slidably arranged on the sliding rod 112, the sensor 1142 is connected to the first connecting portion 1141 through a sensor bracket, the number of sensors 1142 is two, and the two sensors 1142 are arranged oppositely On the sensor support, the strip 300 is conveyed between the two sensors 1142, so that the position of the strip 300 can be detected. The number of the first guide plate 1152 is two. The two first guide plates 1152 are oppositely arranged on the second connecting portion 1151. The first guide plate 1152 is arranged corresponding to the position of the tabs of the strip 300, so that the tabs are in the two positions. The first guide plate 1152 is used to guide the tab and prevent the tab from bending.

Further, the first detection mechanism 110 further includes an adjusting screw 119, which is rotatably arranged on the base 111, and the driving end of the adjusting screw 119 is used for screw connection with the first connecting portion 1141 or the second connecting portion 1151 for driving The first connecting portion 1141 or the second connecting portion 1151 moves relative to the sliding rod 112.

Wherein, as shown in FIG. 7, in this embodiment, the driving end of the adjusting screw 119 is threadedly connected with the second connecting portion 1151. Specifically, the adjusting screw 119 is rotatably arranged on the connecting block 118 for fixing the first guide assembly 115, and the driving end of the adjusting screw 119 is screwed to the second connecting portion 1151. When the first fastener 116 and the second fastening When the parts 117 are all tightened, by rotating the adjusting screw 119, the adjusting rod 113 and the first connecting portion 1141 can be moved through the second connecting portion 1151 to finely adjust the position of the sensor 1142, which is convenient for accurately detecting the position of the material belt 300.

Understandably, in another embodiment, the driving end of the adjusting screw 119 may also be connected to the first connecting portion 1141. Specifically, the adjusting screw 119 is rotatably arranged on the connecting block 118 for fixing the sensor assembly 114, and the driving end of the adjusting screw 119 is threadedly connected with the first connecting portion 1141. When the first fastener 116 and the second fastener 117 When both are tightened, by rotating the adjusting screw 119, the adjusting rod 113 and the second connecting portion 1151 can be driven to move through the first connecting portion 1141 to finely adjust the position of the first guide plate 1152, which is convenient for guiding the tabs.

Further, as shown in FIG. 1, the pole piece feeding device 100 further includes a second detection mechanism 120 and a third detection mechanism 130. The second detection mechanism 120 and the third detection mechanism 130 are provided in the sheet insertion mechanism 10 and the cutting mechanism. Between 20 and 20, the second detection mechanism 120 is used to detect the cutting position of the strip 300; the third detection mechanism 130 is correspondingly disposed at the position of the tab of the strip 300, and is used to detect whether the tab has a corner.

Wherein, in this embodiment, the second detection mechanism 120 and the third detection mechanism 130 are both disposed on the second sliding seat 47. 1 and 8, the second sliding seat 47 is provided with a connecting member 121, the connecting member 121 is connected with a guide member 122, and the guide member 122 is slidably provided with a first connecting seat for connecting the second detection mechanism 120 123 and a second connecting seat 124 for connecting the third detection mechanism 130. The third detection mechanism 130 includes a detection bracket 131 and a first sensor 132 and a second sensor 133 arranged on the detection bracket 131. The lug has a first end connected to the tape 300 and is far from the connection point between the lug and the tape 300 The second end. The first sensor 132 and the second sensor 133 are arranged at intervals along the line connecting the first end and the second end. Wherein, the first sensor 132 is used to detect the length of the tab corresponding to the first sensor 132, the second sensor 133 is used to detect the length of the tab corresponding to the second sensor 133, and then according to the first sensor 132 The ratio of the length of the detected tab to the length of the tab detected by the second sensor 133 determines whether the tab is bent. That is, this embodiment detects the length of two sets of parallel lines perpendicular to the connecting direction of the first end and the second end on the tab, and judges whether the tab is bent according to the length of the two parallel lines.

Optionally, in order to improve the detection accuracy, the first sensor 132 may be correspondingly arranged at a position close to the first end of the tab for detecting the length of the tab close to the first end, and the second sensor 133 is correspondingly disposed at The position close to the second end of the tab is used to detect the length of the tab close to the second end. Wherein, the distance between the first sensor 132 and the first end of the tab and the distance between the second sensor 133 and the second end of the tab can be flexibly set according to needs, which is not specifically limited in the embodiment of the present application.

Specifically, the detection bracket 131 includes a first mounting portion 1311, a second mounting portion 1312, and a connecting portion 1313 connected between the first mounting portion 1311 and the second mounting portion 1312. The first mounting portion 1311 and the second mounting portion 1312 are arranged in parallel and spaced apart, and the tab is located between the first mounting portion 1311 and the second mounting portion 1312. Both the first sensor 132 and the second sensor 133 include a transmitting end and a receiving end, and the transmitting end and the receiving end are respectively arranged on the first mounting portion 1311 and the second mounting portion 1312. When the tab passes through the first sensor 132 and the second sensor 133, the tab will block the light emitted from the transmitting end to the receiving end. Therefore, the tab and the transmission speed of the tape 300 can be calculated based on the blocking time of the tab to the light. The length at the position corresponding to the first sensor 132 and the length at the position corresponding to the second sensor 133 of the tab, and then determine whether the tab is bent according to the relationship between the two lengths.

Wherein, if the tab is a rectangular tab, when the length of the tab detected by the first sensor 132 and the length of the tab detected by the second sensor 133 are equal, the tab has no corner. If the tab is a trapezoidal tab, when the length of the tab detected by the first sensor 132 and the length of the tab detected by the second sensor 133 are in a certain ratio, the tab has no angle. On the contrary, the tabs have angles.

Optionally, a second guide plate 1314 may also be provided on the connecting portion 1313. The second guide plate 1314 is extended and arranged in the U-shaped area of the detection bracket 131. The number of the second guide plate 1314 is two. The guide plates 1314 are arranged at relatively intervals, and the tabs pass through between the two second guide plates 1314. The second guide plates 1314 are used to guide the tabs so that the tabs pass through the first sensor 132 and the second sensor smoothly. 133, thereby improving the detection accuracy of the first sensor 132 and the second sensor 133.

Further, the second detection mechanism 120 is connected to the first connecting seat 123 through an assembly bracket 125, and the assembly bracket 125 is arranged in a U shape. The second detection mechanism 120 is a photoelectric sensor, which includes a transmitting end and a receiving end. The transmitting end and the receiving end are arranged on opposite sides of the U-shaped assembly bracket 125. The material strip 300 passes through the second The detection mechanism 120 is used to detect the cutting position of the material tape 300.

Optionally, as shown in FIG. 8, a third connecting seat 126 is slidably provided on the guide 122, a third guide plate 127 is provided on the third connecting seat 126, and the third guide plate 127 is supported on the material belt 300, Used to guide the material belt 300.

Further, in this embodiment, the feeding mechanism 30 drives the head end of the material belt 300 to approach the winding needle 200 in a linear movement, and feeds the head end of the material belt 300 into the winding needle 200 in a rolling manner, and the feeding mechanism 30 Further, the leading end of the material tape 300 is corrected in the width direction of the material tape 300. By setting the feeding mechanism 30 to correct the head end of the material tape 300 in the width direction of the material tape 300, the alignment between the head end of the material tape 300 and the winding needle 200 can be further improved, thereby making the position of the head end of the material tape 300 More precise.

Specifically, referring to FIGS. 9 and 10, the feeding mechanism 30 includes a fixing seat 32, a first fixing bracket 34, a driving roller 36, a driven roller 38, a clamping driving member 31, a deviation correction driving member 33, and a feeding driving member 35. The fixing seat 32 is slidably supported on the mounting plate 40, the first fixing bracket 34 is slidably supported on the fixing seat 32, the driving roller 36 and the driven roller 38 are rotatably supported on the first fixing bracket 34; the clamping driving member 31 is used for driving The driving roller 36 and the driven roller 38 are relatively close to each other so as to clamp the leading end of the material belt 300. Wherein, the fixing seat 32 moves toward the winding needle 200 under the transmission of the third transmission mechanism 70, and then drives the head end of the material belt 300 to approach the winding needle 200 in a linear movement; the deviation correction drive 33 is used to drive the first fixing bracket 34 to be relatively The fixed seat 32 moves to correct the leading end of the material belt 300 in the width direction of the material belt 300; The leading end is fed into the winding needle 200.

Among them, please refer to Figure 1, Figure 9 and Figure 10, the fixing seat 32 is arranged on the third sliding seat 48, the correction drive 33 includes a correction motor 331, a correction screw 332 and a correction screw nut 333, the correction motor 331 and the correction The screw rod 332 is connected to drive the deviation correction screw 332 to rotate. The correction screw nut 333 is screwed to the correction screw 332. When the correction screw 332 rotates, the correction screw nut 333 can move along the axial direction of the correction screw 332. The correction screw nut 333 is connected to the first fixing bracket 34. In turn, the first fixing bracket 34 is driven to move relative to the fixing base 32.

Specifically, the fixing base 32 is provided with a correction motor fixing base 334, and the correction motor fixing base 334 is provided with a correction motor 331. The driving end of the correction motor 331 is connected through the first coupling 335 and one end of the correction screw 332. 332 is set on the correction screw support, the correction screw 332 is provided with a correction screw nut 333, the correction screw nut 333 is connected to the first fixing bracket 34 through the correction driving block 336, and the first fixing bracket 34 is provided with a correction slider 337, the deviation correcting slider 337 is arranged on the deviation correcting sliding rail 338, and the deviation correcting sliding rail 338 is connected to the fixing base 32 to realize the sliding support of the first fixing bracket 34 on the fixing base 32. The principle of the movement of the first fixing bracket 34 relative to the fixing seat 32 is: the correction motor 331 drives the correction screw 332 to rotate, and the correction screw 332 drives the correction screw nut 333 screwed to it to move along the axial direction of the correction screw 332 to correct the deviation. The screw nut 333 in turn drives the first fixing bracket 34 to move along the axial direction of the correction screw 332. In addition, the deviation correcting slider 337 and the deviation correcting sliding rail 338 arranged between the first fixing bracket 34 and the fixing base 32 can make the movement of the first fixing bracket 34 more stable.

Wherein, the driving roller 36 and the driven roller 38 are rotatably arranged on the first fixed support 34. When the correction driving member 33 drives the first fixed support 34 to move relative to the fixed base 32, the driving roller 36 and the driven roller 38 are relative to the fixed base 32. Move, and further correct the leading end of the material tape 300 in the width direction of the material tape 300.

In this embodiment, the feeding driving member 35 may adopt a feeding motor, the feeding motor is arranged at one end of the first fixing bracket 34 through the feeding motor fixing seat, and the driving end of the feeding motor is combined with a synchronous wheel and a synchronous belt structure. One end of the driving roller 36 is connected to drive the driving roller 36 to rotate, and then the leading end of the material belt 300 is fed into the winding needle 200 in a rolling manner.

A driven roller fixing seat 341 is provided on the first fixing bracket 34, and the driven roller 38 is rotatably supported on the first fixing bracket 34 through the driven roller fixing seat 341. The clamping driving member 31 includes a driving cylinder, which is arranged on the first fixing bracket 34, and the driving end of the driving cylinder is connected to the driven roller fixing seat 341 for driving the driven roller fixing seat 341 to move and drive the driven roller to be fixed. The driven roller 38 on the seat 341 moves toward the driving roller 36, and then clamps the head end of the material belt 300, and is driven by the third transmission mechanism 70 to drive the head end of the material belt 300 to approach Roll needle 200.

Optionally, a guide rod 342 is slidably provided on the first fixing bracket 34, and the driven roller fixing seat 341 is connected to one end of the guide rod 342. The guide rod 342 provided on the first fixing bracket 34 can be used for The driven roller fixing seat 341 is guided to make the movement of the driven roller 38 more stable and precise.

Optionally, the pole piece feeding device 100 further includes a fourth detection mechanism 140. The fourth detection mechanism 140 is used to detect the position of the tape 300 in real time and feedback the position of the tape 300 to the feeding mechanism 30 to facilitate the feeding mechanism. 30 Correct the deviation in time to ensure the accurate position of the material belt 300. Wherein, the structure of the fourth detection mechanism 140 is the same as that of the first detection mechanism 110, please refer to the description of the first detection mechanism 110, which will not be repeated here.

Another aspect of the present application also provides a winding device. The winding device includes a winding needle 200 and a pole piece feeding device 100. The pole piece feeding device 100 is used for conveying the material tape 300 to the winding needle 200, and the winding needle 200 is used for The tape 300 is wound to form a battery core.

Among them, in this embodiment, the structure of the pole piece feeding device 100 is the same as the structure of the pole piece feeding device 100 in the foregoing embodiment. Please refer to the description in the foregoing embodiment, and will not be repeated here.

In summary, it is easy for those skilled in the art to understand that, in the embodiment of the present application, the insert mechanism 10 is arranged upstream of the cutting mechanism 20 and the feeding mechanism 30 is arranged downstream of the cutting mechanism 20. On the one hand, in the cutting mechanism 20. Before cutting the material tape 300, the inserting mechanism 10 clamps the material tape 300, which can make the material tape 300 in a tensioned state for cutting. On the other hand, after the cutting mechanism 20 has finished cutting, the feeding mechanism 30 The head end of the clamping material tape 300 moves in the direction close to the winding needle 200, which not only can tension the material tape 300, but also because the head end of the material tape 300 is clamped and sent to a position closer to the winding needle 200, it can ensure The head end of the material tape 300 can be accurately fed to the winding needle 200 to improve the alignment between the head end of the material tape 300 and the feeding position of the winding needle 200.

Please refer to FIG. 11, in the embodiment of the present application, the cutting mechanism 20 includes a second fixing bracket 210, a first cutting assembly 220 arranged on the second fixing bracket 210, and driving the first cutting assembly 220 The moving first drive assembly 230, the second cutter assembly 240 arranged on the second fixed support 210 and opposite to the first cutter assembly 220, and the second drive assembly 250 for driving the second cutter assembly 240 to move . Specifically, the second fixing bracket 210 is fixedly connected to the second sliding seat 47. The words "connected", "installed", "fixed" in the description of this article, unless otherwise specified, can be directly connected, installed, fixed, or indirectly connected, installed, fixed, that is, it is allowed to have Intervention of third-party substances. The terms "first" and "second" can be used herein to describe various elements, but these elements are not limited by these terms. This term is only used to distinguish the objects described and does not have any sequence or technical meaning.

Take Figure 11 as a reference. In Figure 11, the top and bottom are up and down, the left and right are left and right, the vertical paper surface is in front, and the vertical paper surface is outside. In the following description, top, bottom, left, right, front, and back are used to describe the positional relationship between related elements, so that the description of the positional relationship between one element and another element becomes simple, but these orientations The description does not have any limiting meaning to the technology itself.

Continuing to refer to FIG. 11, the second fixing bracket 210 is configured as a box-shaped bracket, which includes a third mounting portion 211 located on the upper side for mounting the first drive assembly 230, and located on the lower side for mounting the second drive assembly The fourth mounting portion 212 of the 250 and the first and second supporting

portions

213, 214 connected between the third and fourth mounting portions 211, 212, the third and fourth mounting portions 211, 212 and the first and second The supporting

parts

213 and 214 surround a accommodating space 215 for accommodating the first cutter assembly 220 and the second cutter assembly 240.

The first cutting assembly 220 includes a first cutting seat 221 and a first cutting 222 fixedly arranged on the first cutting seat 221.

The first drive assembly 230 includes an air cylinder 231, a first guide sleeve 232 fixedly arranged on the third mounting portion 211, a first guide post 233 slidably arranged in the first guide sleeve 232, and a first guide post 233 arranged on the first guide post 233. The first limit block 234. One end of the first guide post 233 is fixedly connected to the first cutting tool holder 221, and the other end is fixedly connected to the first limiting block 234 after sliding through the first guide sleeve 232. The air cylinder 231 pushes and pulls the first cutting tool holder 221 to move up and down. The first guide sleeve 232 cooperates with the first guide post 233 to guide the up and down movement of the first cutting tool holder 221. The first limit on the first guide post 233 The bit block 234 can prevent the first cutting seat 221 from moving down excessively. The number of the first guide sleeve 232 and the first guide post 233 can be set to be several and arranged symmetrically with respect to the air cylinder 231, so that the air cylinder 231 can smoothly drive the first cutting knife holder 221 to drive the first cutting knife 222 to move. Preferably, The first guide sleeve 232 and the first guide post 233 are provided in two, and are arranged symmetrically with respect to the cylinder 231 in the left-right direction.

In other embodiments, the first guide sleeve 232 may be omitted, a through hole is provided on the third mounting portion 211 of the second fixing bracket 210, and the first guide post 233 slides through the through hole of the second fixing bracket 210; In other embodiments, it can be arranged that one end of the first guide post 233 is fixedly connected to the third mounting portion 211 of the second fixing bracket 210, and the other end is slid through the first cutting seat 221 and then fixed to the first limiting block 234. connection.

The second cutter assembly 240 includes a second cutter seat 241, a second cutter 242 installed on the second cutter seat 241, a second pressing block 243 arranged above the second cutter seat 241, and a second driving The cutter seat 241 and the second cutter 242 are away from the third driving assembly 245 of the second pressing block 243. In the front-rear direction, the second pressing block 243 and the second cutting knife 242 do not overlap, so that the second cutting knife 242 can move upward to protrude the second pressing block 243.

The third driving assembly 245 includes a third guide sleeve 2451 provided on the second cutter seat 241, a third guide post 2452 slidably provided in the third guide sleeve 2451, and a third limit provided at the lower end of the third guide post 2452. The position block 2453, the guide rod 2454 and the elastic member 2456 sleeved on the guide rod 2454. One end of the third guide post 2452 is fixedly connected to the second pressure block 243, and the other end slides through the third guide sleeve 2451 and then fixedly connected to the third limit block 2453. The third limit block 2453 is used to limit the second pressure block. 243 is excessively far away from the second cutter seat 241. One end of the guide rod 2454 is fixedly connected to the second pressure block 243, and the other end slides through the second cutter seat 241. Under the elastic force of the elastic member 2456, the second pressure block 243 and the second cutter seat 241 are away from each other , So that the second cutter 242 on the second cutter seat 241 does not protrude upward from the second pressing block 243. The number of the third guide sleeve 2451 and the third guide post 2452 can be set to several so that the second cutter seat 241 and the second pressure block 243 can move smoothly relative to each other. The elastic member 2456 is preferably a spring, or an elastic element made of elastic materials such as rubber.

In other embodiments, a limit block can be provided at the lower end of the guide rod 2454 to prevent the second pressure block 243 from being excessively far away from the second cutter seat 241, and the third guide sleeve 2451, the third guide post 2452 and the third limiter are omitted. The position block 2453, or the third guide post 2452 is covered with an elastic member 2456 and the guide rod 2454 is omitted, or the guide rod 2454 is omitted and only the elastic member 2456 is provided. In this case, the two ends of the elastic member 2456 are respectively connected to The second pressure block 243 and the second cutter seat 241 are fixedly connected; in other embodiments, the third guide sleeve 2451 may be omitted, and a through hole is provided on the second cutter seat 241 for the third guide post 2452 to slide through The second cutter seat 241.

The second cutter assembly 240 also includes an air extraction hole 2431 and an air extraction tube 2432 connected to the air extraction hole 2431 provided on the second pressure block 243. The air extraction hole 2431 and the air extraction tube 2432 are used to remove dust generated when cutting the tape.

As shown in FIG. 12, the second driving assembly 250 includes a motor 2501 fixedly arranged on the second fixing bracket 210, a second coupling 2502 connected to the output end of the motor 2501, and a second coupling 2502 drivingly connected to the second coupling 2502. Two screw rods 2503, a second screw nut 2504 arranged on the second screw rod 2503, a drive plate 2505 connected to the second screw nut 2504, a sliding plate 2506 connected to the drive plate 2505, and a fourth screw nut 2504 connected to the sliding plate 2506 The sliding block 2507, the third sliding rail 2508 that is arranged on the second fixing bracket 210 to guide the fourth sliding block 2507, the two wedge-shaped blocks 2509 arranged on the back of the sliding plate 2506, and are clamped to one of the two wedge-shaped blocks 2509 Between the cam 2510, the cam fixing seat 2511 on which the cam 2510 is installed, the second guide sleeve 2512 arranged on the fourth mounting portion 212 of the second fixing bracket 210, and the second guide post 2513 slidably arranged in the second guide sleeve 2512 And a second limiting block 2514 disposed at one end of the second guiding column 2513. One end of the second guide post 2513 is fixedly connected to the second cutter seat 241, and the other end is slid through the second guide sleeve 2512 and then fixedly connected to the second limiting block 2514. The second limiting block 2514 is used to limit the second cutting The knife assembly 240 is excessively far away from the second fixing bracket 210.

In other embodiments, the second guide sleeve 2512 may be omitted, and a through hole is provided on the fourth mounting portion 212 of the second fixing bracket 210 so that the second guide post 2513 slides through the second fixing bracket 210; wedge block 2509 It can be only one. At this time, a chute clamping cam 2510 is provided on the wedge block 2509; in other embodiments, it can be set as the fourth mounting portion 212 of the second fixing bracket 210 at one end of the second guide column 2513 After being fixedly connected, the other end slides through the second cutter seat 241 and then is fixedly connected to the second limiting block 2514.

The motor 2501 rotates clockwise or counterclockwise to drive the second screw 2503 to rotate to drive the second screw nut 2504 to move left or right. The movement of the second screw nut 2504 drives the drive plate 2505 to move, and the drive plate 2505 drives the slide plate 2506 to move. The movement of the sliding plate 2506 drives the wedge block 2509 provided on the sliding plate 2506 to move so that the cam 2510 clamped in the wedge block 2509 moves up and down, and finally the cam surface on the cam 2510 drives the cam fixing seat 2511 to move up or down. The second cutter assembly 240 is driven to move up or down. The number of the second guide sleeve 2512 and the second guide post 2513 can be set to be several and arranged symmetrically with respect to the cam fixing base 2511, so that the motor 2501 can smoothly drive the second cutter base 241 to drive the second cutter 242 to move.

The working process of the cutting mechanism 20 of the present application is as follows: the first and

second driving components

230, 250 drive the first and

second cutter components

220, 240 to move away from each other, and the elastic force of the elastic member 2456 acts Under the force, the second pressing block 2243 is far away from the second cutter seat 241, so that the second cutter 242 does not protrude upward from the second pressing block 243; next, the material belt passes through between the first and

second cutters

222, 242 Then, the first drive assembly 230 drives the first cutting seat 221 and the first cutting knife 222 to move so that the first cutting knife 222 moves to the upper side of the material belt to support the material belt, and then the second drive assembly 250 Drive the second cutter assembly 240 to move in the direction close to the first cutter assembly 220 so that the second pressing block 243 abuts against the lower side of the material belt and presses the material belt together with the first cutter 222. Next, the second The cutter seat 241 and the second cutter 242 continue to move in the direction close to the first cutter assembly 220 under the drive of the second drive assembly 250 to compress the elasticity between the second cutter seat 241 and the second pressure block 243 2456, the second cutting knife 242 protrudes upward from the second pressing block 243, and finally, the second cutting knife 242 protruding upward from the second pressing block 243 cooperates with the first cutting knife 222 to cut the strip.

The first and

second cutter assemblies

220 and 240 of the cutting mechanism 20 of the present application can move relatively, which increases the gap between the first and

second cutters

222 and 242, so that the material belt can easily pass through the first and second cutters. The

second cutter

222, 242; the motor 2501, the second screw 2503, the fourth slider 2507, the cam 2510, etc. are used to drive the second cutter assembly 240 to convert the movement of the fourth slider 2507 in the left and right directions into The movement of the second cutter assembly 250 in the up and down direction reduces the overall size of the second drive assembly 250 in the direction of movement of the second cutter 242, saving space; before cutting, the second cutter 242 does not protrude upward The second pressing block 243 is ejected. The second pressing block 243 and the first cutting knife 222 first compress the material belt, and then the second cutting knife 242 moves upwards to cooperate with the first cutting knife 222 to cut the material belt. The cutting precision is high and the material is cut. The belt will not be scratched by the second cutter 242 when passing through the first and

second cutter assemblies

220 and 240.

As shown in FIG. 13, in the embodiment of the present application, the pole piece feeding device may further include a waste removal mechanism 90. The waste removal mechanism 90 is arranged between the feeding mechanism 30 and the winding needle 200, and when the material belt (for example, pole pieces, described below by taking the pole pieces as an example) conveyed by the feeding mechanism 30 to the winding needle 200 is a waste section , The waste removal mechanism 90 is used to rewind the waste section.

Please refer to FIG. 13, FIG. 14 and FIG. 15 together. The waste removal mechanism 90 includes a translation mechanism 910, a winding mechanism 920 and a material blocking mechanism 930. The translation mechanism 910 includes a first mounting seat 911, a fourth sliding seat 912, and a translation driving assembly disposed on the first mounting seat 911. The fourth sliding base 912 is movably connected to the first mounting base 911 along the first direction, and is drivingly connected to the translation driving assembly, so that the translation driving assembly can drive the fourth sliding base 912 to move in the first direction. The winding mechanism 920 includes a winding needle 921 and a rotation driving member 922 provided on the fourth sliding seat 912. The winding needle 921 is rotatably connected to the fourth sliding seat 912 about its own axis, and is in transmission connection with the rotation driving member 922 so that the rotation driving member 922 can drive the winding needle 921 to rotate to rewind the waste section. The stopper mechanism 930 is disposed on the first mounting seat 911 and is used to push and push the waste section wound around the winding needle 921 so that the waste section is separated from the winding needle 921.

Wherein, during the movement of the fourth sliding seat 912 in the first direction, the moving path of the winding needle 921 includes the winding position, the blocking position and the avoiding position arranged in sequence. When the winding needle 921 is in the winding position, the winding needle 921 extends between the feeding mechanism 30 and the winding needle 200, and is used to wind the waste section output by the feeding mechanism 30, thereby preventing the waste section from being input. The winding operation is performed to the winding needle 200. When the winding needle 921 is at the material blocking position, the material blocking mechanism 930 resists the waste material section on the winding needle 921 to prevent the waste material section from moving to the avoiding position with the winding needle 921. When the winding needle 921 moves to the avoiding position, the winding needle 921 is completely pulled out from the waste section and exits between the feeding mechanism 30 and the winding needle 200 to avoid affecting the feeding mechanism 30 and the winding needle 200. It should be noted that, in the embodiment shown in FIG. 13, the first direction is the direction perpendicular to the paper surface.

In the actual production of the above-mentioned waste removal mechanism 90, when the pole piece output by the feeding mechanism is a waste section, the translation drive assembly drives the fourth sliding seat 912 to move in the first direction, so that the winding needle 921 moves from the avoiding position to the retracting position. Reel position, and the scrap section is inserted into the reel pin 921. The rotation driving member 922 drives the winding needle 921 to rotate to wind the waste section of the pole piece. When all the waste sections of the pole piece are wound up, the feeding mechanism 30 cuts off the waste sections, and the winding needle 921 continues to rotate to completely wind up the cut waste sections. Subsequently, the translation driving assembly drives the fourth sliding seat 912 to move in the first direction to move the winding needle 921 from the winding position to the stop position. At this time, the stop mechanism 930 resists the waste section wound on the winding needle 921. The winding needle 921 continues to move to the avoiding position with the fourth sliding seat 912 to prepare for the next winding, and the waste section on the winding needle 921 is separated from the winding needle 921 due to the resistance of the stopper mechanism 930.

In this way, when the pole piece output by the feeding mechanism 30 is a waste section, the waste section can be eliminated by the above-mentioned waste removal mechanism 90, which effectively prevents the waste section from being input to the winding needle 200 for winding operation, and avoids the waste of the diaphragm. Reduce production costs and improve production efficiency. In addition, the above-mentioned waste removal mechanism 90 has a simple structure, simple and reliable action for removing the waste section, is applicable to pole pieces of different specifications, and has strong compatibility.

Specifically, in the embodiment, the aforementioned winding needle 921 is a fork-shaped winding needle. That is, the winding needle 921 includes a first needle piece, a second needle piece, and a fixed connection part that fixes one end of the first needle piece and the second needle piece together. There is a gap 9211 between the first needle piece and the second needle piece for inserting the waste material section. When it is necessary to rewind the waste material section, the winding needle 921 moves to the winding position, and the waste material section is inserted into the gap 9211 between the first needle piece and the second needle piece of the winding needle 921, and then the winding needle 921 Rotate around its axis to wind up the waste section.

In the embodiment of the present application, the translation drive assembly includes a translation drive 913, a driving wheel 914, a transmission belt 915, and a driven wheel 916. The translation driving member 913 is disposed on the first mounting seat 911, and the driving wheel 914 is disposed on the output shaft of the translation driving member 913 to rotate synchronously with the output shaft of the translation driving member 913. The driven wheel 916 is rotatably connected to the first mounting seat 911 around its own axis, and the driven wheel 916 and the driving wheel 914 are arranged along the first direction. The transmission belt 915 is sleeved between the driving wheel 914 and the driven wheel 916 and is fixedly connected to the fourth sliding seat 912. In this way, the translation driving member 913 can drive the driving wheel 914 to rotate, thereby driving the driven wheel 916 to rotate through the transmission belt 915. Since the fourth sliding seat 912 is fixedly connected to the transmission belt 915, the fourth sliding seat 912 follows the transmission belt 915 to move in the first direction. In addition, by changing the rotation direction of the output shaft of the translation driving member 913, the fourth sliding seat 912 can drive the winding needle 921 to follow the path from the retraction position, the stop position to the winding position, or the reverse direction from the winding position. , The path movement from the stop position to the avoid position. Optionally, the translation driving member 913 may be a motor.

Specifically, in the embodiment, the translation mechanism 910 further includes a translation guide 918 disposed on the first mounting seat 911, the fourth sliding seat 912 is movably connected to the translation guide 918 along the translation guide 918, and the translation guide 918 is connected to the first direction described above. Parallel. Further, the translation mechanism 910 further includes a translation slider 919, and the translation slider 919 is movably connected to the translation guide rail 918 along the translation guide rail 918 and is fixedly connected to the fourth sliding seat 912. In other words, the fourth sliding seat 912 is indirectly connected to the translation guide rail 918 through the translation sliding block 919.

In the embodiment of the present application, the winding mechanism 920 further includes a rotating shaft 923 rotatably connected to the fourth sliding seat 912 about its own axis. One end of the rotating shaft 923 is drivingly connected to the rotating drive member 922, and the other end is coaxially installed with a winding pin 921, so that the rotating drive member 922 can drive the rotating shaft 923 to rotate, and the winding pin 921 rotates synchronously with the rotating shaft 923. Alternatively, the rotation driving member 922 may be a motor. The output shaft of the rotation driving member 922 may be connected to one end of the rotation shaft 923 through a coupling.

Specifically, in the embodiment, the fourth sliding seat 912 is fixedly connected with two rotating support seats 9121 arranged along the first direction, and two ends of the rotating shaft 923 are respectively rotatably connected to the two rotating support seats 9121. The rotating driving member 922 is disposed on one of the rotating support seats 9121.

Please refer to FIGS. 15 and 17 together. In the embodiment of the present application, the blocking mechanism 930 includes a third fixing bracket 931, a blocking driving member 932, and a blocking member 933. The third fixing bracket 931 is fixedly connected to the first mounting base 911, the stopper driving member 932 is disposed on the third fixing bracket 931, and the stopper 933 is disposed on the driving end of the stopper driving member 932 so that the stopper driving member 932 The drive moves in a second direction at an angle to the above-mentioned first direction. Optionally, the first direction is perpendicular to the second direction.

The movement of the stopper 933 in the second direction includes the push position. When the stopper 933 is in the push position, the stopper 933 abuts against the waste section on the winding needle 921 moved to the stop position, thereby In the process of making the winding needle 921 move from the stop position to the avoiding position, the stop 933 blocks the waste section on the winding needle 921 from moving to the avoiding position along with the winding needle 921, so that the waste section and the winding The needle 921 is separated. Optionally, the stopper driving member 932 may be an air cylinder.

Specifically, in the embodiment, the blocking member 933 includes a blocking portion and a shift bar fixedly connected to the blocking portion. The resisting part can cooperate with the peripheral surface of the winding needle 921 to resist the waste section on the winding needle 921. The shifting bar can be inserted into the gap 9211 of the winding needle 921, so as to better resist the waste section, avoiding part of the waste section from entering the gap between the winding needle 921 and the resisting part with the movement of the winding needle 921, resulting in failure of the stop .

It should be noted that since the winding needle 921 needs to be moved from the stop position to the avoiding position, there must be a gap between the resisting part and the peripheral surface of the winding needle 921 when the two are matched, so that the waste section located in the inner layer It will not be able to be resisted by the resisting part and will continue to move with the reeling needle 921, resulting in the failure of the stopper. Since the shift bar can be inserted into the gap 9211 of the winding needle 921, it can play a role in resisting the waste section located in the inner layer, preventing the waste section from entering between the winding needle 921 and the resisting part with the movement of the winding needle 921 The gap between.

It should also be noted that since the gap 9211 of the winding needle 921 is relatively narrow and the size of the lever is small (that is, the strength is small), the larger size of the resisting portion (that is, the strength is larger) is used to resist the waste section. It is beneficial to improve the overall strength of the stopper 933, which can ensure the stopper effect and avoid the deformation or breakage of the stopper 933.

Further, the resisting portion has an arc surface 9330 for matching with the peripheral surface of the winding needle 921. The arrangement of the arc surface 9330 makes the stopper 933 more resistant to the waste section wound on the winding needle 921. It is reliable and stable, which helps to ensure the separation effect of the waste section and the winding needle 921.

Specifically, in the embodiment, the blocking mechanism 930 further includes a blocking guide rod 934, which penetrates the third fixing bracket 931 along the second direction and is slidable relative to the third fixing bracket 931. One end of the stopper guide rod 934 is fixedly connected to the stopper 933 to guide the movement of the stopper 933 in the second direction, so that the stopper 933 can accurately move to the pushing position.

Please refer to FIGS. 14, 15 and 16 together. In the embodiment of the present application, the waste removal mechanism 90 further includes a pressing assembly 940 that includes a pressing mounting seat 941, a swing rod 942, and a pressing assembly 940. Material 943 and torsion spring 945. The material pressing mounting base 941 is fixedly connected to the fourth sliding base 912, one end of the pendulum rod 942 is rotatably connected to the pressing material mounting base 941 about a rotation axis, and the other end of the pendulum rod 942 is fixedly connected to the material pressing member 943. Optionally, the rotation axis is parallel to the winding needle 921.

The torsion spring 945 is disposed on the pressing material mounting seat 941 and has a first torsion arm and a second torsion arm. The first torsion arm is connected to the presser mounting seat 941, and the second torsion arm is connected to the swing rod 942 to provide a pre-tightening force for the presser 943 to rotate around the rotation axis in the direction close to the winding needle 921, so that the During the winding process of the winding needle 921, the pressing member 943 always presses against the waste section on the winding needle 921, preventing the waste section from being loosely wound and improving the winding effect. Optionally, the pressing member 943 may be a pressing roller, which may be rotatably connected to an end of the swing rod 942 away from the pressing mounting seat 941 about its own axis.

Specifically, in the embodiment, the pressing component 940 further includes a fixing part 944 fixedly connected to the pressing material mounting seat 941, the torsion spring 945 is disposed on the pressing material mounting seat 941, and the first torsion arm of the torsion spring 945 is connected to the fixing part 944. The second torsion arm of the torsion spring 945 is connected to the swing rod 942. In this way, the arrangement of the fixing portion 944 facilitates the installation of the torsion spring 945.

In the embodiment of the present application, the waste rejection mechanism 90 further includes a second guide assembly 950. The second guide assembly 950 includes a guide seat 951 fixedly connected to the fourth sliding seat 912 and rotatably connected to the guide seat 951 about its own axis.的guide roller 952. The guide roller 952 is used to guide the waste section input to the winding needle 921 to prevent the transfer direction of the pole piece from changing when the diameter of the waste section wound on the winding needle 921 gradually increases. Scratch to other mechanisms (for example, the cutting mechanism 20), causing the pole piece to break or be damaged.

Specifically, in the embodiment, the second guide assembly 950 further includes a fourth guide plate 953 disposed on the guide seat 951, and the fourth guide plate 953 is used to guide the tabs of the waste section input to the winding needle 921.

In the embodiment of the present application, the waste removal mechanism 90 further includes a dust collection assembly 960 located below the winding needle 921. The dust collection assembly 960 includes a collection box 962 and a collection drive 961. The collection box 962 is movably connected to the fourth sliding seat 912 along the first direction. The collection driving member 61 is disposed on the fourth sliding seat 912 and is in transmission connection with the collection box 962, so that the collection driving member 961 can drive the collection box 962 to move in the first direction, so that the collection box 962 can synchronize the winding needle 921 along the first direction. Move in the direction, so as to collect wastes such as dust and debris dropped in the process of winding the waste section.

Further, a quick release box is detachably connected to the collection box 962, and the quick release box is used for collecting dust, debris and other waste. In this way, when the waste needs to be cleaned up, the quick release box can be quickly removed to facilitate dumping of the waste. Optionally, the quick release box is connected to the collection box 962 by fasteners. The fastener can be a screw, a buckle, etc., which is not limited here.

Specifically, in the embodiment, the dust collection assembly 960 further includes a collection slide 963 and a collection slider 964. The collecting slide 963 is fixedly connected to the fourth slide 912. The collection slider 964 is slidably connected to the collection slide 963 along the collection slide 963. The collection box 962 is fixedly installed on the collection slider 964. The driving end of the collecting driving member 961 is connected to the collecting sliding block 964 to drive the collecting sliding block 964 to move along the collecting sliding rail 963.

Please refer to FIG. 13. It should be noted that, in the embodiment of the present application, the inserting mechanism 10 and the feeding mechanism 30 can both clamp the pole pieces, and the inserting mechanism 10 can drive the pole pieces when clamping the pole pieces. The pole piece moves and is inserted into the gap 9211 of the feeding mechanism 30 or the winding needle 921. The cutting mechanism 20 is used to cut the pole piece. Further, the waste removal mechanism 90 may be arranged between the feeding mechanism 102 and the winding needle 200, or may be arranged between the cutting mechanism 20 and the feeding mechanism 30, both of which can realize the rejection of the waste section, which is not limited here. . In the embodiment shown in FIG. 13, the waste removal mechanism 90 is arranged between the feeding mechanism 30 and the winding needle 200.

Please continue to refer to FIG. 13, based on the above pole piece feeding device 100, an embodiment of the present application also provides a winding device, which includes a winding needle 200 and the pole piece described in any of the above embodiments. Sheet feeding device 100. The pole piece feeding device 100 is used to convey a material tape (such as a pole piece) to the winding needle 200, and the winding needle 200 is used to wind the material tape to form a battery core. Further, the winding equipment includes two sets of pole piece feeding devices 100, and the two sets of pole piece feeding devices 100 are respectively used to feed the anode piece and the cathode piece to the winding needle 200.

The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined in this document can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, this application will not be limited to the embodiments shown in this document, but should conform to the widest scope consistent with the principles and novel features disclosed in this document.

Claims

A pole piece feeding device for conveying a material tape to a winding needle, characterized in that the pole piece feeding device includes a sheet inserting mechanism, a cutting mechanism and a material feeding device which are sequentially arranged along the conveying direction of the material tape Mechanism, the inserting mechanism is used to clamp the tape, and the cutting mechanism is used to cut the tape, wherein after the tape is cut, the inserting mechanism further moves closer to the roll The direction of the needle conveys the tape or the cutting mechanism moves away from the winding needle, so that the leading end of the tape is exposed to the cutting mechanism, and the feeding mechanism is used for clamping The head end of the material tape moves toward the winding needle, so that the head end of the material tape approaches and is fed into the winding needle.
The pole piece feeding device according to claim 1, wherein the pole piece feeding device further comprises a mounting plate, a first transmission mechanism, a second transmission mechanism and a third transmission provided on the mounting plate Mechanism and a first slide rail and a second slide rail arranged in parallel on the mounting plate, the inserting mechanism and the cutting mechanism are slidably supported on the first slide rail, and are respectively connected to the first transmission mechanism and The second transmission mechanism moves along the first slide rail under the transmission, the feeding mechanism is slidably supported on the second slide rail, and is driven by the third transmission mechanism along the second slide rail movement.
The pole piece feeding device according to claim 1, wherein the pole piece feeding device further comprises a guide mechanism, and the guide mechanism is arranged between the inserting mechanism and the cutting mechanism and/ Or between the cutting mechanism and the feeding mechanism, it is used to guide the head end of the material belt.
The pole piece feeding device according to claim 3, wherein the guide mechanism comprises a scroll spring and a wire, and the scroll spring is provided in one of the inserting mechanism and the cutting mechanism And/or on one of the cutting mechanism and the feeding mechanism, one end of the wire is connected to the scroll spring, and the other end of the wire is connected to the insert mechanism and the cutting mechanism The other of the mechanisms and/or the other of the cutting mechanism and the feeding mechanism, the scroll spring changes with the distance between the insert mechanism and the cutting mechanism /Or the distance between the cutting mechanism and the feeding mechanism is changed to rewind or release the wire, and the material tape abuts on the wire.
The pole piece feeding device according to claim 1, wherein the pole piece feeding device further comprises a correction mechanism and a first detection mechanism, and the correction mechanism is arranged in the conveying direction of the material belt. The upstream of the inserting mechanism is used to correct the material tape entering the pole piece feeding device along the width direction of the material tape; the first detection mechanism is arranged between the correction mechanism and the inserting piece Between the mechanisms, it is used to detect the position of the material belt after being corrected by the correction mechanism, and feed back the position of the material belt to the correction mechanism.
The pole piece feeding device according to claim 5, wherein the first detection mechanism includes a base, a sliding rod, an adjusting rod, a sensor assembly, a first guide assembly, a first fastener, and a second fastener. The sliding rod is arranged on the base, the sensor assembly and the first guide assembly are slidably supported on the sliding rod, and the first fastener is used to connect the sensor assembly with the The adjusting rod is connected, the second fastener is used to connect the first guide assembly to the adjusting rod, and the adjusting rod is used to adjust the sensor assembly and/or the sensor assembly connected to the adjusting rod. The position of the first guide assembly on the slide bar, the sensor assembly is used to detect the position of the material strip, the first guide assembly is correspondingly arranged at the position of the lug of the material strip, and is used for The tab guide.
The pole piece feeding device according to claim 6, wherein the sensor assembly includes a first connecting portion and a sensor provided on the first connecting portion, and the first guide assembly includes a second connecting portion And a first guide plate arranged on the second connecting portion, the first connecting portion and the second connecting portion are slidably arranged on the sliding rod, the first detection mechanism further includes an adjusting screw, The adjusting screw is rotatably arranged on the base, wherein,

The driving end of the adjusting screw is threadedly connected with the first connecting portion, and the adjusting screw is used to adjust the position of the first connecting portion on the sliding rod; or

The driving end of the adjusting screw is threadedly connected with the second connecting portion, and the adjusting screw is used for adjusting the position of the second connecting portion on the sliding rod.
The pole piece feeding device according to claim 1, wherein the pole piece feeding device further comprises a second detection mechanism and a third detection mechanism, and the second detection mechanism and the third detection mechanism are arranged Between the inserting mechanism and the cutting mechanism, the second detection mechanism is used to detect the cutting position of the strip; the third detection mechanism is correspondingly arranged at the tab position of the strip , Used to detect whether the tab has a corner.
The pole piece feeding device according to claim 8, wherein the third detection mechanism comprises a detection bracket and a first sensor and a second sensor arranged on the detection bracket, and the tab has a The first end of the tape connection and the second end away from the connection between the tab and the tape, the first sensor and the second sensor are along the first end and the second end The connection direction is arranged at intervals, the first sensor is used to detect the length of the position where the tab corresponds to the first sensor, and the second sensor is used to detect that the tab corresponds to the second sensor The length at the position of, and then determine whether the tab is bent according to the ratio of the length of the tab detected by the first sensor to the length of the tab detected by the second sensor.
The pole piece feeding device according to claim 1, wherein the feeding mechanism drives the head end of the material belt to approach the winding needle in a linear movement and rolls the material belt The head end is fed into the winding needle, and the feeding mechanism further corrects the head end of the material tape in the width direction of the material tape.
The pole piece feeding device according to claim 10, wherein the pole piece feeding device comprises a mounting plate, and the feeding mechanism comprises:

A fixed seat, slidably supported on the mounting plate;

The first fixing bracket is slidably supported on the fixing seat;

The driving roller and the driven roller are rotatably supported on the first fixed bracket;

The clamping drive member is used to drive the driving roller and the driven roller to be relatively close to each other, thereby clamping the head end of the material belt, wherein the fixing seat is driven by the third transmission mechanism to the The winding needle moves, and then the head end of the material belt is driven to approach the winding needle in a linear movement;

A deviation-correcting drive member for driving the first fixing bracket to move relative to the fixing base, and then correcting the deviation of the leading end of the material belt in the width direction of the material belt;

The feeding driving member drives the driving roller to drive the driven roller to roll, and then feeds the leading end of the material belt into the winding needle in a rolling manner.
The pole piece feeding device according to claim 1, wherein the cutting mechanism comprises a second fixed support, a first cutting assembly provided on the second fixed support, and used to drive the first A first drive assembly for the movement of the cutter assembly, a second cutter assembly arranged on the second fixed bracket and opposite to the first cutter assembly, and a second cutter assembly for driving the movement of the second cutter assembly The second drive assembly, the second cutter assembly includes a second cutter seat, a second cutter installed on the second cutter seat, and a second pressure block arranged above the second cutter seat And a third drive assembly that drives the second cutter seat and the second pressure block to move away from each other.
The pole piece feeding device according to claim 12, wherein the second drive assembly comprises a motor, a second screw rod connected to the output end of the motor, and a first screw rod arranged on the second screw rod. Two screw nuts, a drive plate connected with the second screw nut, at least one wedge block connected with the drive plate, a cam clamped by the wedge block, and a cam for fixing the cam Fixed seat.
The pole piece feeding device according to claim 1, wherein the pole piece feeding device further comprises a waste removal mechanism arranged between the feeding mechanism and the winding needle or the cutting mechanism When the material belt conveyed by the feeding mechanism to the winding needle is a waste material section, the waste material removal mechanism is used for winding the waste material section.
The pole piece feeding device according to claim 14, wherein the waste removal mechanism comprises:

The translation mechanism includes a first mounting base, a fourth sliding base, and a translation drive assembly provided on the first mounting base, the fourth sliding base is movably connected to the first mounting base along a first direction, and Drive connection with the translation drive assembly;

The winding mechanism includes a winding needle and a rotary drive member arranged on the fourth sliding seat, the winding needle is rotatably connected to the fourth sliding seat about its own axis, and is in driving connection with the rotary drive member; and

The blocking mechanism is arranged on the first mounting seat;

Wherein, during the movement of the fourth sliding seat in the first direction, the moving path of the winding needle includes winding positions, blocking positions, and avoiding positions arranged in sequence. When the winding When the needle is in the winding position, the winding needle is used to wind the waste section; when the winding needle is at the stop position, the stop mechanism resists the waste section on the winding needle , To prevent the waste section from moving to the avoiding position with the winding needle.
The pole piece feeding device according to claim 15, wherein the stopper mechanism includes a third fixed bracket, a stopper driving member, and a stopper, and the third fixed bracket is fixedly connected to the first Mounting seat, the stopper driving part is arranged on the third fixing bracket, the stopper is arranged on the driving end of the stopper driving part, so that the driving edge of the stopper driving part and the first The direction is angled in the second direction;

The movement of the stopper in the second direction includes a pushing position. When the stopper is in the pushing position, the stopper and the retractor moving to the stopper position The waste material section on the winding needle is opposed to each other to prevent the waste material section from moving to the avoiding position with the winding needle.
The pole piece feeding device according to claim 16, wherein the stopper includes a resisting portion and a shift bar fixedly connected to the resisting portion, and the resisting portion can be connected to the circumference of the winding needle. The side surfaces are matched, and the shift bar can be inserted into the gap of the winding needle.
The pole piece feeding device according to claim 15, wherein the waste removal mechanism further comprises a pressing component, the pressing component includes a pressing mounting seat, a swing rod, a pressing piece and a torsion spring, so The pressing material mounting seat is fixedly connected to the fourth sliding seat, one end of the pendulum rod is rotatably connected to the pressing material mounting seat about a rotation axis, and the other end of the pendulum rod is fixedly connected to the pressing material mounting seat. Material

The torsion spring is arranged on the pressing material mounting seat and has a first torsion arm and a second torsion arm, the first torsion arm is connected to the pressing material fixing seat, and the second torsion arm is connected to the A swing rod is used to provide a pre-tightening force for rotating the pressing member around the rotation axis in a direction close to the winding needle.
The pole piece feeding device according to claim 15, wherein the waste removal mechanism further comprises a second guide assembly, and the second guide assembly includes a guide seat fixedly connected to the fourth sliding seat and a winding Its axis is rotatably connected to the guide roller of the guide seat, and the guide roller is used to guide the waste section input to the winding needle.
A winding device, which is characterized by comprising a winding needle and the pole piece feeding device according to any one of claims 1-19, and the winding needle is used for winding the pole piece feeding device input Material tape to form a battery cell.