CN113241472A

CN113241472A - Lithium battery composite process winding machine and processing method

Info

Publication number: CN113241472A
Application number: CN202110661774.9A
Authority: CN
Inventors: 倪军; 陈里鹏; 刘乔; 陈伟; 夏光荣; 王艺若
Original assignee: Anmai Times Intelligent Manufacturing Ningde Co ltd
Current assignee: Anmai Times Intelligent Manufacturing Ningde Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-08-10

Abstract

The invention provides a lithium battery composite process winder and a processing method thereof, which comprises a frame and a pair of pole piece unwinding mechanisms arranged at two sides of the frame and used for releasing a positive pole piece and a negative pole piece, wherein a diaphragm unwinding mechanism used for guiding a diaphragm is arranged at one side of each pole piece unwinding mechanism, the pole piece unwinding mechanism at one side is subjected to surface rubberizing by a corner rubberizing mechanism and then is jointed with the diaphragm guided out by the diaphragm unwinding mechanism at the other side, the pole piece unwinding mechanism at the other side is jointed with the diaphragm guided out by the diaphragm unwinding mechanism at the other side and then enters a composite mechanism to be guided out to form a blank B, the blank A and the blank B are synchronously output and wound on a winding head, the composite mechanism is designed to respectively compound a cathode and an anode with the diaphragm by a composite process, four materials are changed into two materials and then are wound, and the tension control is easier than the original tension control, can realize low tension control, and efficiency is higher.

Description

Lithium battery composite process winding machine and processing method

Technical Field

The invention relates to a winding machine for a lithium battery composite process and a processing method.

Background

In the winding machine in the prior industry, a cathode pole piece, an anode pole piece and two layers of diaphragms are collected to a winding needle through rollers respectively for winding. A series of problems that the four materials are difficult to control tension, poor in deviation rectification alignment degree and the like exist when the four materials are gathered together through a plurality of rollers, and therefore the quality of an electric core product is poor and the consistency of the product is poor.

Disclosure of Invention

The invention improves the problems, namely the technical problem to be solved by the invention is to realize the compounding of the cathode pole piece, the anode pole piece and the diaphragm of the lithium battery, and then to wind the compound. Belongs to a lithium battery winding machine with a brand new process. The machine comprises a pole piece unwinding mechanism, a diaphragm unwinding mechanism, a corner adhesive tape pasting mechanism, a feeding mechanism, a composite mechanism, a head adhesive tape pasting mechanism, a CCD visual inspection mechanism, a buffer memory mechanism, a deviation correction mechanism, a winding head, a tail adhesive tape pasting mechanism, a discharging mechanism, a pre-pressing mechanism, a discharging pull belt, tension control and the like.

The specific embodiment of the invention is as follows: the lithium battery compound process winding machine comprises a rack and a pair of pole piece unwinding mechanisms arranged on two sides of the rack and used for releasing a positive pole piece and a negative pole piece, wherein a diaphragm unwinding mechanism used for guiding a diaphragm is arranged beside each pole piece unwinding mechanism, the pole piece unwinding mechanism on one side is subjected to surface rubberizing by a corner rubberizing mechanism and then enters a compound mechanism to be guided out to form a blank A after being laminated with the diaphragm guided out by the diaphragm unwinding mechanism on the other side, the pole piece unwinding mechanism on the other side enters a compound mechanism to be guided out to form a blank B after being laminated with the diaphragm guided out by the diaphragm unwinding mechanism on the other side, and the blank A and the blank B are synchronously output and wound on a winding head.

Furthermore, the corner adhesive tape pasting mechanism comprises a conveying roller for inputting the pole piece, a corner adhesive tape preparing mechanism which is arranged beside the conveying roller and used for outputting an adhesive tape, and a pair of corner adhesive tape tracing structures for pasting the adhesive tape on the upper surface and the lower surface of the pole piece; the corner tracing and pasting structure comprises a tracing and pasting fixed plate positioned at the side of the pole piece, negative pressure adsorption plates which are positioned above and below the pole piece and can adsorb adhesive tapes are arranged on the tracing and pasting fixed plate, each negative pressure adsorption plate is driven by a transverse driving device to move along the conveying direction of the pole piece, the negative pressure adsorption plates are fixed on a tracing and pasting transverse bracket which can move longitudinally,

furthermore, the corner glue preparation mechanism comprises a corner glue preparation fixing plate positioned at the side of the pole piece, a pair of corner glue tray mounting discs which are respectively arranged at the upper part and the lower part of the pole piece and used for placing a glue tray are fixed on the glue preparation fixing plate, a corner glue preparation roller for winding a glue tape is arranged at the side of each corner glue tray mounting disc, a cutting knife which is driven by a cutting knife cylinder fixed by the glue preparation fixing plate to move up and down is also arranged at the discharge end of the corner winch mounting disc, a glue pulling pneumatic clamping jaw is arranged at the front side of the cutting knife, the glue drawing pneumatic clamping jaw is fixed on a glue drawing sliding block, the glue preparing fixing plate is provided with an electric lead screw for driving the glue drawing sliding block to move, a bearing plate which is fixed on the glue preparation fixing plate and used for bearing the adhesive tape is arranged between the cutter and the corner glue preparation roller, and a corner adhesive tape pressing plate is arranged above the bearing plate and is driven by a pressing plate cylinder fixed on the adhesive-preparing fixing plate.

Furthermore, a moving end of the transverse driving device is fixed with a tracking moving plate, a pair of tracking vertical linear guide rails is fixed on the tracking moving plate, a vertical guide groove in sliding fit with the tracking vertical linear guide rails is arranged behind the tracking transverse support, a convex shaft is fixed on the tracking transverse support, the convex shaft is limited in a track groove of the tracking fixed plate, a groove-shaped frame is fixed on the tracking fixed plate, the track groove is positioned on the groove-shaped frame and faces the tracking transverse support, the track groove comprises a high position far away from the pole piece and a low position close to the pole piece, in the process of driving the tracking transverse support to move transversely by the transverse driving device, the tracking transverse support moves up and down on the tracking vertical linear guide rails by the movement of the convex shaft in the track groove, the negative pressure adsorption plate at the upper part or the lower part of the pole piece is provided with a pair of negative pressure adsorption cylinders which are respectively fixed on different telescopic ends of the negative pressure adsorption cylinders, the utility model discloses a pole piece, including negative pressure adsorption plate, fixed plate cylinder, adjustable slide block, adjustable cylinder, adjustable lead screw motor drive lateral shifting's adjustable cylinder is provided with on the fixed plate by adjustable lead screw motor, adjustable cylinder's flexible end has the adjustable plug axle that can stretch into in the adjustable slide block.

Further, the compound mechanism comprises a compound support seat and a compound frame arranged on the compound support seat, an upper compound roller and a lower compound roller are arranged in the compound frame at intervals from top to bottom, the lower compound roller is fixedly arranged on the compound frame, two ends of the upper compound roller are arranged on compound sliding blocks, a sliding groove for accommodating the compound sliding blocks is vertically formed in the compound frame, a compound air cylinder is vertically arranged above the sliding groove on the support, the tail end of a compound air cylinder rod of the compound air cylinder is connected with the compound sliding blocks, a wedge block adjusting mechanism for adjusting the gap between the upper compound roller and the lower compound roller is arranged below the compound sliding blocks in the sliding groove, and the compound sliding blocks are erected on the wedge block adjusting mechanism; an upper gear and a lower gear which can be in meshed transmission are respectively arranged at one end part of the upper composite roller and one end part of the lower composite roller, one end of the lower composite roller is in connected transmission with a composite roller motor, two ends of the lower composite roller are fixedly arranged on a composite frame through bearing seats, and the upper composite roller is fixedly arranged on a composite sliding block through the bearing seats.

Furthermore, the wedge block adjusting mechanism comprises a longitudinally-arranged composite screw rod and a wedge block which is arranged on the composite screw rod and is in threaded fit with the composite screw rod, the upper surface of the wedge block and the lower surface of the composite slide block are inclined planes, the composite screw rod is rotatably connected with the composite frame, the composite frame is arranged at the rear end of the composite screw rod in a penetrating mode, a handle is arranged at the rear end of the composite screw rod, or the rear end of the composite screw rod is connected with a motor of the adjusting composite roller for transmission, and the wedge block is erected on a bearing seat of the lower composite roller.

Furthermore, electric heaters are installed in the upper composite roller and the lower composite roller, a gap between the upper composite roller and the lower composite roller forms a pole piece composite interval, a feeding guide plate is horizontally installed on the composite frame on the input side of the pole piece composite interval, and the input end of the feeding guide plate inclines downwards to form an input guide surface.

Further, the output end of the blank A is provided with a pole piece head rubberizing device, the pole piece head rubberizing device comprises a head rubberizing adhesive tape unwinding mechanism, a head rubberizing preparation mechanism, a head rubberizing cutting mechanism and a head rubberizing pulling mechanism which are sequentially arranged on a base plate from left to right, and the head rubberizing mechanism is arranged above the base plate between the head rubberizing cutting mechanism and the head rubberizing pulling mechanism; the head rubberizing and glue-preparing mechanism comprises a head rubberizing roller A and a head rubberizing roller B which are sequentially arranged, a head rubberizing and glue-drawing roller is arranged between the head rubberizing roller A and the head rubberizing roller B, the head rubberizing and glue-drawing roller is installed on a head rubberizing sliding block, a head rubberizing and glue-drawing head rubberizing vertical guide rail is installed on a base plate, the head rubberizing sliding block is in sliding fit with the head rubberizing and glue-drawing head rubberizing vertical guide rail, a head glue-preparing vertical cylinder is installed on the upper side or the lower side of the head rubberizing sliding block, and the sliding block is installed at the tail end of a cylinder of the head glue-preparing vertical cylinder;

the head rubberizing mechanism comprises a head rubberizing lifting seat, a clamping cylinder A and a head rubberizing cylinder, wherein the clamping cylinder A and the head rubberizing cylinder are sequentially arranged on the head rubberizing lifting seat from left to right;

the head rubberizing and glue drawing mechanism comprises a head rubberizing transverse moving seat, a clamping cylinder B and a head rubberizing side-pushing cylinder, wherein the clamping cylinder B and the head rubberizing side-pushing cylinder are arranged on the head rubberizing transverse moving seat at an upper-lower interval;

a driving device for driving the head rubberizing transverse moving seat to transversely move is transversely arranged on the substrate;

the head rubberizing mechanism comprises a support and a glue sucking roller transversely arranged on the support, a plurality of sucking holes are formed in the glue sucking roller, a servo motor is arranged on the support, and one end of the glue sucking roller is in transmission connection with an output shaft of the servo motor.

Furthermore, a pole piece straight feeding mechanism for guiding pole piece feeding is arranged on one side of the feeding end of the composite mechanism, and comprises clamping and feeding components and a feeding and cutting component which are arranged on the rack at intervals left and right, wherein the clamping and feeding components are installed on the rack through a first transverse moving mechanism, and the feeding and cutting component is installed on the rack through a second transverse moving mechanism;

the clamping and conveying assembly comprises a feeding fixed frame A and a lifting frame A which is installed at the lower end of the feeding fixed frame A and is in sliding fit with the feeding fixed frame A, a feeding conveying roller A is installed in the feeding fixed frame A, a feeding conveying roller B is arranged below the feeding conveying roller A, the feeding conveying roller B is fixedly installed on the upper side face of the lifting frame A, a feeding lifting cylinder A for driving the lifting frame to lift is vertically installed in the middle of the bottom end of the feeding fixed frame A, a horizontal upper clamping plate and a horizontal lower clamping plate are arranged on the output side of the clamping and conveying assembly at an upper interval and a lower interval, and the horizontal upper clamping plate and the horizontal lower clamping plate are fixedly installed on the feeding fixed frame and the lifting frame respectively;

pan feeding cutting assembly is including last blade holder, cutting backup pad, the lower fixing base that from top to bottom interval set up, cutting backup pad output side is provided with pan feeding activity cutter, goes up blade holder rear end fixed mounting and has fixed cutter, installs the fixed cutter of drive on the lower fixing base and goes up and down in order to cut off the driving piece of pole piece.

Furthermore, a feeding guide rail is transversely arranged on the rack; the first transverse moving mechanism comprises a left moving seat and a clamping and conveying linear sliding table for driving the left moving seat to transversely move, the clamping and conveying linear sliding table is fixedly arranged on the rack, the left moving seat is fixedly arranged at the sliding end of the clamping and conveying linear sliding table, and the left moving seat is in sliding fit with the feeding guide rail; the two transverse moving mechanisms comprise a feeding transverse moving cylinder and a right moving seat, the feeding transverse moving cylinder is fixedly arranged on the rack, the tail end of a cylinder rod of the feeding transverse moving cylinder is connected with the right moving seat, and the right moving seat is in sliding fit with the feeding guide rail;

a feeding base is arranged at the upper end of the left moving seat, a deviation correcting component and a clamping and conveying component are sequentially arranged at the lower end of the feeding base along a conveying direction, a feeding fixing frame A is fixedly arranged on the feeding base, the correcting component comprises a feeding fixed frame B, a lifting frame B which is installed at the lower end of the feeding fixed frame B and is in sliding fit with the feeding fixed frame B, feeding conveying rollers C are installed in the feeding fixed frame B, feeding conveying rollers D are arranged below the feeding conveying rollers C, the feeding conveying rollers D are fixedly installed on the upper side face of the lifting frame B, a feeding lifting cylinder B which drives the lifting frame to lift is vertically installed in the middle of the bottom end of the feeding fixed frame B, a feeding correcting feeding guide rail is installed at the lower end of a feeding base along the longitudinal direction, the feeding correcting feeding guide rail on the feeding fixed frame B is in sliding fit with the feeding correcting feeding guide rail, a correcting linear sliding table is installed at the upper end of the feeding base along the longitudinal direction, and the feeding fixed frame B is fixedly connected with the sliding end of the correcting linear sliding table.

Further, the winding head comprises a direct-drive three-winding-needle winding head device, and is characterized in that: the winding turret is rotatably connected with the winding machine base, and three direct-drive winding needle devices are uniformly arranged in the brick tower along the circumference of the axis of the brick tower;

the direct-drive needle winding device comprises a needle winding mechanism, a sliding block, a spline shaft and a spline motor which are sequentially arranged from front to back, wherein the spline motor is a through motor, the spline motor is fixedly arranged on a winding turret, the spline motor is sleeved at the rear end of the spline shaft, the spline motor is directly connected with the spline shaft through a spline outer barrel, the needle winding mechanism is fixedly arranged at the front end of the spline shaft, the middle part of the sliding block is sleeved at the front part of the spline shaft, and the sliding block is fixedly arranged on the spline shaft through a bearing seat;

the needle pulling mechanism comprises a winding linear sliding table and a mounting seat, the winding linear sliding table is axially arranged, the mounting seat is mounted at the moving end of the winding linear sliding table, a sliding seat and a needle pulling cylinder are sequentially arranged on the mounting seat from inside to outside along the radial direction, the sliding seat is in sliding fit with the mounting seat through a radial guide rail, the outer end of the sliding seat is connected with the tail end of a cylinder rod of the needle pulling cylinder, and a shifting rod capable of shifting a sliding block is mounted at the inner end of the sliding seat;

the rear end of the winding turret is provided with a ring gear which is coaxial with the winding turret, the winding machine base is provided with a winding turret motor, and an output shaft of the winding turret motor is provided with a driving gear which is in meshing transmission with the ring gear;

linear bearings are axially arranged at two ends of the sliding block, a winding guide shaft penetrates through the linear bearings, and the winding guide shaft is fixedly arranged in the winding turret;

roll up needle mechanism including rolling up the needle file, roll up the needle subassembly, roll up the needle tailstock, roll up the needle subassembly and insert respectively and roll up the needle file and roll up the needle tailstock, roll up the needle subassembly and include first outer book needle, the outer book needle of second, first outer book needle and the outer book needle of second are placed 180 on same circumference, be equipped with first internal pressure needle in the first outer book needle, be equipped with second internal pressure needle in the outer book needle of second, roll up the needle tailstock including coiling the fixing base, coiling fixing base and integral key shaft front end fixed connection, be equipped with the sliding block that can slide in the coiling the fixing base, first outer book needle and second internal pressure needle all are fixed in the coiling fixing base, first internal pressure needle and the outer book needle of second all are fixed in the sliding block, be equipped with the gliding driving piece of control sliding block in the coiling.

The invention also comprises a winding processing method for the lithium battery composite process, which utilizes the lithium battery composite process winding machine and is characterized in that: the method comprises the following steps:

(1) the pole pieces are released from the two pole piece unreeling mechanisms, the pole pieces released from one of the pole piece unreeling mechanisms pass through the corner rubberizing mechanism, the corner rubberizing mechanism enables a wound adhesive tape to be sleeved on the corner adhesive disc mounting disc, the adhesive tapes are symmetrically arranged above and below the pole pieces, the end part of the adhesive tape passes through the bearing plate and the cutter after bypassing the corner adhesive tape preparation rubber roll and then is clamped by the adhesive pulling pneumatic clamping jaw, the adhesive pulling pneumatic clamping jaw moves towards the pole piece direction under the driving of the electric lead screw, and the displacement distance pulled out by the adhesive pulling pneumatic clamping jaw meets the preset length;

(2) the lower surface of the negative pressure adsorption plate is provided with a negative pressure hole communicated with a negative pressure pump, the adhesive tape between the adhesive pulling structure and the cutter can be adsorbed through negative pressure, after the adhesive tape is cut off by the cutter, the distance adjusting lead screw motor independently controls the movement of the distance adjusting cylinder, when distance adjustment is needed, the distance adjusting insertion shaft is inserted into the distance adjusting hole under the driving of the distance adjusting cylinder, and then the distance adjusting lead screw motor moves so as to adjust the distance adjusting slide block to move on the distance adjusting guide rail and further control the distance between two adjacent negative pressure adsorption plates;

(3) after the distance adjustment is finished, the transverse driving device drives the pole pieces to move along the output direction of the pole pieces, the pole pieces are subjected to equidirectional accelerated follow-up pasting while moving, when the protruding shaft is located at the low position of the track groove, the negative pressure adsorption plates above and below the pole pieces are symmetrically pressed to tightly press the adhesive tapes on the pole pieces, and then the negative pressure adsorption plates reset.

(4) The pole piece discharged by corner rubberizing is output through the pole piece straight feeding mechanism, the pole piece released from the pole piece unreeling mechanism on the other side is directly output through the pole piece straight feeding mechanism, when the pole piece straight feeding mechanism feeds materials, the deviation rectifying assembly firstly clamps the pole piece to convey the pole piece, meanwhile, the longitudinal position of the pole piece is adjusted to ensure that the pole piece accurately passes through the conveying space between the horizontal upper clamping plate and the horizontal lower clamping plate without deviation, and after the head of the pole piece is conveyed to the outer end of the horizontal upper clamping plate to reach a set distance, the clamping assembly clamps the pole piece; then, the first transverse moving mechanism sends the pole piece to a feeding cutting assembly in a straight manner, and the head end of the pole piece enters a composite device; then, the pole piece is not clamped by the clamping and conveying assembly and the deviation correcting assembly, and the first transverse moving mechanism drives the clamping and conveying assembly and the deviation correcting assembly to transversely move and reset; then, the feeding cutting assembly cuts off the pole piece, so that feeding of the pole piece is completed at one time;

(5) the feeding of the pole piece straight feeding mechanism on two sides and the diaphragm released by the diaphragm unwinding mechanism are combined to form a blank A and a blank B respectively through a composite mechanism;

(6) and the output end of the blank A is provided with a pole piece head rubberizing device, and the pole piece head rubberizing device and the blank B are output and wound on a winding head.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention designs the composite mechanism, and after the cathode and the anode are respectively compounded with the diaphragm through the composite process, the four materials are changed into two materials and then are wound, the tension control is easier than the original tension control, and the low tension control can be realized.

2. The corner adhesive sticking method adopts a sticking process, after the adhesive sticking structure can be prepared, the upper corner adhesive and the lower corner adhesive are simultaneously pressed and separated after the movement speed of the adhesive sticking structure is accelerated to reach the same movement speed as that of a pole piece, so that the whole adhesive sticking process is completed, and the method is simple in structure and high in efficiency. The production takt time is saved, and the production efficiency is improved.

3. The compound mechanism of pole piece can be according to the supplied material thickness difference, through the clearance of compound roller about voussoir adjustment mechanism adjusts, through compound cylinder drive compound roller uplift push down, compound pressure size is adjustable

4. The head rubberizing structure realizes the rubberizing function of the pole piece and diaphragm composite rear pole piece side, ensures that the head part of the pole piece and diaphragm composite does not separate when passing through a roller, and utilizes a servo motor to draw glue, so that the glue drawing speed can be controlled, and the deformation of the adhesive tape is effectively prevented; meanwhile, the pulling action of the adhesive tape with any length in the stroke range can be realized.

5. After the novel process is adopted, the problems of the alignment degree of a plurality of pole piece diaphragms, lithium precipitation of a battery cell and the like are solved in the unreeling process of the pole piece attaching process.

6. In the lithium battery composite process, an anode sheet is required. And feeding the pole piece and the diaphragm into a compounding device, applying a certain pressure to the pole piece and the diaphragm by the compounding device for pasting and compounding, and feeding the pole piece and the diaphragm to a winding device for winding after compounding. In the process of winding the battery core of the lithium battery, the pole pieces are cut off after one battery core is wound, the next pole piece is fed to the compounding station to prepare for winding of the next battery core, and the feeding of the compounding station is different from the traditional winding feeding. Therefore, how to feed the pole piece needs to be correspondingly designed to be matched with the composite device.

Drawings

FIG. 1 is a schematic view of the overall structure of a lithium battery composite process winder of the present invention.

FIG. 2 is a schematic view of the overall structure of the corner gluing device of the present invention.

FIG. 3 is a schematic diagram of a glue preparing mechanism of the corner gluing device of the present invention.

FIG. 4 is a partial structural view of a cutter portion of a glue preparation mechanism of the corner gluing device according to the present invention.

FIG. 5 is a back schematic view of a glue preparation mechanism of the corner gluing device of the present invention.

FIG. 6 is a schematic view of a corner adhesive applying device according to the present invention.

FIG. 7 is a partial structure diagram of a corner adhesive applying device according to the present invention.

FIG. 8 is a rear side view of the following structure of the corner tape dispenser according to the present invention.

Fig. 9 is a first structural schematic diagram of the head rubberizing mechanism.

Fig. 10 is a second structural view of the head part coating.

Fig. 11 is a schematic structural view of the head glue cutting mechanism.

Fig. 12 is a schematic structural view of a head rubberizing and glue pulling mechanism.

FIG. 13 is a schematic structural diagram of a pole piece flat feeding mechanism.

Fig. 14 is a schematic view of the mounting structure of the first and second traverse mechanisms of the pole piece straight feeding mechanism.

FIG. 15 is a schematic view of the installation structure of the deviation rectifying assembly and the pinch assembly of the pole piece straight feeding mechanism.

FIG. 16 is a schematic view of a feeding and cutting assembly of a pole piece flat feeding mechanism.

FIG. 17 is a schematic structural diagram of a detection assembly of a pole piece flat feeding mechanism.

FIG. 18 is a schematic structural diagram of a composite mechanism of a pole piece straight feeding mechanism.

Fig. 19 is a first structural schematic diagram of the winding head device.

Fig. 20 is a second schematic structural view of the winding head device.

Fig. 21 is a schematic structural diagram of a winding head direct-drive needle winding device.

Fig. 22 is a structural sectional view of the winding head direct-drive needle winding device.

Fig. 23 is a schematic structural view of a needle winding mechanism of the winding head.

In the figure: in the figure: 100-a frame; 101-pole piece unwinding mechanism; 102-a membrane unwinding mechanism; 103-corner gluing mechanism; 104-a compound mechanism, 105-a head gluing mechanism, 106-a pole piece straight feeding mechanism and 107-a winding head;

110-corner glue-preparing fixed plate, 120-corner glue disc mounting plate, 130-corner glue-preparing roller, 140-cutter, 141-cutter cylinder, 150-glue-pulling pneumatic clamping jaw, 151-glue-pulling sliding block, 160-bearing plate, 161-corner tape pressing plate, 162-pressing plate cylinder, 210-tracing fixed plate, 220-tracing movable plate, 221-tracing vertical linear guide rail, 230-tracing transverse support, 231-convex shaft, 240-groove-shaped frame, 241-rail groove, 250-negative pressure adsorption plate, 1310-distance adjusting guide rail, 1320-distance adjusting sliding block, 1321-distance adjusting hole, 1330-distance adjusting cylinder and 1340-distance adjusting lead screw motor.

32-a first traversing mechanism; 3201-left moving seat; 3202-pinch linear slide; 33-a second traversing mechanism; 3301-right movable seat; 3302-feeding and traversing cylinder; 34-a deviation rectifying component; 3401-correcting a straight sliding table; 3402-feeding fixed frame B; 3403-lifting frame B; 3404-feeding lifting cylinder B; 3405-feeding conveying roller C; 3406-feeding conveying roller D; 3407-feeding deviation-rectifying feeding guide rail; 35-a pinch assembly; 3501-feeding conveyer roller A; 3502-feeding roller B; 3503-feeding lifting cylinder A; 3504-feeding the fixed frame A; 3505-lifting frame A; 3506-horizontal lower splint; 3507-horizontal upper splint; 36-a detection component; 3601-a feeding frame body; 3602-feeding longitudinal screw rods; 3603-a nut; 3604-pole piece edge fixing plate; 3605, detecting a mounting plate; 3606-detecting a laser sensor; 3607-a tab guide plate; 37-a feeding and cutting assembly; 3701-lower fixed seat; 3702-upper tool apron; 3703-cutting the supporting plate; 3704-feeding movable cutters; 3705-a lifting knife holder; 3706-outer guide bar; 3707-cutting the linear slide; 3708-drive block; 3709-arc shaped drive slots; 3710-upper driving rod; 3711-lower drive rod; 3712-linkage plate; 3713-feeding inner guide rod; 3714-feeding vertical guide rod; 3715-spring; 38-feeding guide rail; 39-feeding base; 310-upper dust extraction longitudinal pipe; 311-lower dust extraction vertical pipe.

41-composite supporting seat; 42-a composite frame; 43-upper compound roll; 44-lower compound roll; 45-compound roller motor; 46-lower gear; 47-upper gear; 48-a compound cylinder; 49-; 410-a composite slider; 411-wedge; 412-composite lead screw; 413-feeding guide plate.

51-a substrate; 52-head rubberizing tape unwinding mechanism; 53-head rubberizing and glue preparing mechanism; 5301-head rubberizing roller A; 5302-head rubberizing roller B; 5303-gluing and drawing rubber rollers on the head; 5304-head rubberizing slider; 5305-gluing the head, pulling the glue and gluing the head to the vertical guide rail; 5306-preparing a glue vertical cylinder at the head; 54-head glue cutting mechanism; 5401 head rubberizing lifting seat; 5402-Clamp Cylinder A; 5403-head rubber cutting cylinder; 5404 head rubberizing and head rubberizing pressing block A; 5405-Upper platen A; 5406-head rubberizing cutter; 5407-vertical guide rail for head rubberizing; 5408-head rubberizing lifting cylinder; 5409-head rubberizing lifting cylinder; 55-head rubberizing and glue pulling mechanism; 5501-head rubberizing traversing seat; 5502-a clamping cylinder B; 5503-head rubberizing side pushes away the cylinder; 5504-head rubberizing briquetting B; 5505-head gluing pressing plate B; 5506-a pressing cylinder; 5507-head rubberizing press roller; 5508-head rubberizing side panels; 5509-head rubberizing transverse guide; 56-head rubberizing mechanism; 5601-a stent; 5602-glue absorbing roller; 5603-servo motor; 5604-jacking cylinder; 5605-slider; 57-head rubberizing cross rails; 58-drive means.

61-a winder base; 62-a winding turret; 6201-a ring gear; 6202-a winding turret motor; 6203-drive gear; 63-direct drive type needle winding device; 6301-needle winding mechanism; 6302-spline shaft; 6303-spline motor; 6304-slider; 6305-linear bearings; 6306-winding guide shaft; 6307-winding the push rod; 6308-spline outer cylinder; 6309-thimble; 6310-winding holder; 6311-return coil spring; 6312-first outer wrap needle; 6313-first internal pressing pin; 6314-second internal pressing pin; 6315-second outer winding needle; 6316-slider; 6317-wrap spring; 6318-rollers; 64-a needle pulling and inserting mechanism; 6401-winding a linear ramp; 6402-mounting seat; 6403-a pin pulling cylinder; 6404-sliding seat; 6405-driving lever; 65-wrong needle mechanism; 6501-rotating the clamping cylinder; 6502-swing arm; 6503-thimble; 66-a front support mechanism; 6601-rotating frame; 6602-connecting shaft; 6603-winding front cylinder; 6604 winding pull rod; 6605-coiling the supporting block; 67-support the feet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the winding machine for the lithium battery composite process includes a frame 100 and a pair of pole piece unwinding mechanisms 101 disposed at two sides of the frame for releasing the positive pole piece and the negative pole piece, a diaphragm unwinding mechanism 102 for guiding a diaphragm is disposed beside each pole piece unwinding mechanism, wherein the pole piece unwinding mechanism at one side is subjected to surface rubberizing by a corner rubberizing mechanism 103, then is bonded with the diaphragm guided out by the diaphragm unwinding mechanism at the other side, and then enters a composite mechanism 104 to be guided out to form a blank a, the pole piece unwinding mechanism at the other side is bonded with the diaphragm guided out by the diaphragm unwinding mechanism at the other side, then enters a composite mechanism to be guided out to form a blank B, and the blank a and the blank B are synchronously output and wound on a winding head

As shown in fig. 2 to 8, the corner adhesive tape attaching device includes a conveying roller for inputting the pole piece, a corner adhesive tape preparing mechanism located beside the conveying roller for outputting the adhesive tape, and a pair of corner attaching structures for attaching the adhesive tape to the upper surface and the lower surface of the pole piece; in this embodiment, the corner glue preparation mechanism is provided with a pair of corner glue preparation mechanisms on the upper surface and the lower surface of the pole piece.

In this embodiment, the corner glue preparation mechanism includes a corner glue preparation fixing plate 110 located beside the pole piece and fixed on the rack, a pair of corner glue tray mounting discs 120 respectively arranged on the upper portion and the lower portion of the pole piece and used for placing a glue tray are fixed on the glue preparation fixing plate, a corner glue preparation roller 130 for winding a glue tape is arranged beside each corner glue tray mounting disc, a cutter 140 for cutting the glue tape is further arranged at the discharge end of the corner winch mounting disc, a glue pulling structure for clamping the end portion of the glue tape is arranged on the front side of the cutter, the glue pulling structure includes a glue pulling pneumatic clamping jaw 150, the glue pulling pneumatic clamping jaw is fixed on a glue pulling slider 151, and an electric lead screw 152 for driving the glue pulling slider to move is arranged on the glue preparation fixing plate. The opposing faces of the glue pneumatic jaws 150 have intermeshing tooth surfaces 153.

In this embodiment, the adhesive preparation fixing plate on the output side of the corner adhesive preparation roll is fixed with the cutter cylinders 141 above and below the pole piece, the cutter 140 is fixed at the telescopic end of the cutter cylinder 141, and the cutting edge of the cutter is perpendicular to the output adhesive tape. In this embodiment, the cutter 140 is fixed on a crank-shaped connecting seat, and the telescopic end of the cutter cylinder 141 is fixedly connected with the cutter through the crank-shaped connecting seat.

In this embodiment, a support plate 160 fixed to the adhesive-preparation fixing plate and used for bearing an adhesive tape is arranged between the cutter and the corner adhesive-preparation roller, a corner adhesive tape pressing plate 161 is arranged above the support plate, the corner adhesive tape pressing plate is driven by a pressing plate cylinder 162 fixed to the adhesive-preparation fixing plate, and the support plate is located above the cutter.

In this embodiment, the attaching structure includes an attaching fixing plate 210 fixed on the frame beside the pole piece, negative pressure absorbing plates 250 disposed above and below the pole piece are disposed on the attaching fixing plate 210, each negative pressure absorbing plate is driven by a transverse driving device 260 to move along the pole piece conveying direction, and the negative pressure absorbing plates are fixed on an attaching transverse support 230 capable of moving longitudinally.

During operation, the wound adhesive tape is sleeved on the corner adhesive tape mounting disc 120, the corner adhesive tape mounting disc 120 is detachably connected with a separation blade used for preventing the adhesive tape from being separated, the adhesive tape is placed above and below the pole piece symmetrically, the end part of the adhesive tape bypasses the corner rubber roll 130 and then passes through the bearing plate and the cutter and then is clamped by the adhesive pulling pneumatic clamping jaw 150, the adhesive pulling pneumatic clamping jaw moves towards the pole piece under the driving of the electric screw 152, and the adhesive pulling pneumatic clamping jaw pulls out the displacement distance to meet the preset length.

At this time, the negative pressure adsorption plate 250 of the glue chasing mechanism adsorbs the adhesive tape, then the corner adhesive tape pressing plate above the bearing plate presses the adhesive tape between the corner adhesive tape pressing plate and the bearing plate 160 under the driving of the pressing plate driving cylinder, then the cutter moves upwards in the cutter cylinder to cut off the adhesive tape, and the adhesive tape is released by the adhesive tape pulling pneumatic clamping jaw 150 and is reset to the position tightly attached to the cutter for subsequent adhesive pulling.

The moving end of the transverse driving device 260 is fixed with a tracing moving plate 220, a pair of tracing vertical linear guide rails 221 is fixed on the tracing moving plate 220, a vertical guide groove in sliding fit with the tracing vertical linear guide rails is formed behind the tracing transverse support 230, a convex shaft 231 is fixed on the tracing transverse support, and the convex shaft is limited in a track groove 241 of the tracing fixing plate.

A groove-shaped frame 240 is fixed on the tracing fixing plate, a track groove 241 is located on the groove-shaped frame 240 and faces to the tracing transverse support, the track groove comprises a high position far away from the pole piece and a low position close to the pole piece, and the tracing transverse support moves up and down in the tracing vertical linear guide rail through the movement of a convex shaft in the track groove in the process of driving the tracing transverse support to move transversely.

In this embodiment, the middle of the track groove 241 is a low position close to the pole piece, and the two ends of the low position are high positions far away from the pole piece.

The negative pressure adsorption plates on the upper or lower part of the pole piece are provided with a pair of negative pressure adsorption plates which are respectively fixed on the telescopic ends of different negative pressure adsorption cylinders 251.

When the negative pressure adsorption plate 250 works, the lower surface of the negative pressure adsorption plate 250 is provided with a negative pressure hole communicated with a negative pressure pump, the adhesive tape between the adhesive pulling structure and the cutter can be adsorbed through negative pressure, after the cutter cuts off the adhesive tape, the transverse driving device drives the adhesive tape to move along the output direction of the pole piece, the pole piece is accelerated to be attached in the same direction while moving, and the negative pressure adsorption plate 250 above and below the pole piece is symmetrically pressed to tightly adhere the adhesive tape on the pole piece when the protruding shaft is positioned at the low position of the track groove 241. Then the negative pressure adsorption plate 250 is reset.

The negative pressure adsorption cylinder 251 can improve the pressing force or adjust the vertical height position of the negative pressure adsorption plate 250.

The transverse driving device 260 may be driven by an electric cylinder, pneumatic or hydraulic, in this embodiment, the transverse driving device 260 adopts an electric screw fixed on the attaching fixing plate 210, and drives the attaching moving plate 220 to move transversely through a telescopic end of the electric screw.

In the embodiment, the pole piece compounding device comprises a compound support seat 41 and a compound frame 42 arranged on the compound support seat, wherein an upper compound roller 43 and a lower compound roller 44 are arranged in the compound frame at intervals from top to bottom, the lower compound roller is fixedly arranged on the compound frame, two ends of the upper compound roller are arranged on a compound slider 410, a chute for accommodating the compound slider is vertically arranged on the compound frame, a compound cylinder 48 is vertically arranged on a bracket above the chute, the tail end of a compound cylinder rod of the compound cylinder is connected with the compound slider, a wedge block adjusting mechanism for adjusting a gap between the upper compound roller and the lower compound roller is arranged below the compound slider in the chute, and the compound slider is erected on the wedge block adjusting mechanism; an upper gear 7 and a lower gear 6 which can be meshed and driven are respectively arranged at one end part of the upper composite roller and one end part of the lower composite roller, and one end of the lower composite roller is connected and driven with a composite roller motor 45.

In this embodiment, two ends of the lower composite roll are fixedly mounted on the composite frame through bearing seats, and the upper composite roll is fixedly mounted on the composite slide block through the bearing seats.

In this embodiment, the wedge adjusting mechanism includes a longitudinally disposed composite screw 412 and a wedge 411 installed on the composite screw and in threaded fit with the composite screw, the upper surface of the wedge and the lower surface of the composite slider are both inclined planes, the composite screw is rotatably connected with the composite frame, the composite frame is inserted through the rear end of the composite screw, a handle is installed at the rear end of the composite screw, or the rear end of the composite screw is in transmission connection with a motor for adjusting the composite roller.

In this embodiment, the wedges ride on the chock of the lower compound roll.

In this embodiment, the upper and lower composite rolls are provided with electric heaters, and the electric heaters are turned on and off as necessary to perform cold compounding or heat compounding.

In this embodiment, a gap between the upper and lower composite rolls forms a pole piece composite zone, a material supply guide plate 413 is horizontally installed on the composite frame at the input side of the pole piece composite zone, and the input end of the material supply guide plate is inclined downward to form an input guide surface.

In this embodiment, the composite support seat and the composite roller motor are both mounted on the frame.

When in use, the clearance between the upper and lower compound rollers is adjusted by the wedge block adjusting mechanism according to the thickness of the supplied materials; then, the incoming materials enter the space between the upper composite roller and the lower composite roller for compounding when arriving through the incoming material guide plate, the upper composite roller and the lower composite roller rotate through the composite roller motor and the upper gear and the lower gear, and the compounding pressure is adjusted through the composite air cylinder during compounding.

As shown in fig. 10-13, a pole piece head rubberizing device includes a head rubberizing tape unwinding mechanism 52, a head rubberizing tape preparation mechanism 53, a head glue cutting mechanism 54, and a head rubberizing tape pulling mechanism 55, which are sequentially installed on a substrate 1 from left to right, wherein a head rubberizing mechanism 56 is installed above the substrate between the head glue cutting mechanism and the head rubberizing tape pulling mechanism;

the head rubberizing glue preparation mechanism comprises a head rubberizing roller A5301 and a head rubberizing roller B5302 which are sequentially arranged, a head rubberizing drawing roller 5303 is arranged between the head rubberizing roller A and the head rubberizing roller B, the head rubberizing drawing roller is installed on a head rubberizing sliding block 5304, a head rubberizing drawing head rubberizing vertical guide rail 5305 is installed on a base plate, the head rubberizing sliding block is in sliding fit with the head rubberizing drawing head rubberizing vertical guide rail, a head glue preparation vertical air cylinder 5306 is installed on the upper side or the lower side of the head rubberizing sliding block, and the sliding block is installed at the tail end of an air cylinder of the head glue preparation vertical air cylinder;

the head rubberizing mechanism comprises a head rubberizing lifting seat 5401, a clamping cylinder A5402 and a head rubberizing cylinder 5403 which are sequentially arranged on the head rubberizing lifting seat from left to right, a head rubberizing pressing block A5404 is arranged at the tail end of a cylinder rod of the clamping cylinder A, an upper pressing plate A5405 is fixedly arranged on the head rubberizing lifting seat above the head rubberizing pressing block A, a head rubberizing cutter 5406 is arranged at the tail end of the cylinder rod of the head rubberizing cylinder, a head rubberizing lifting cylinder 5408 and a head rubberizing vertical guide rail 5407 are arranged on a substrate, the head rubberizing lifting seat is in sliding fit with the head rubberizing vertical guide rail, and the tail end of the cylinder rod of the head rubberizing lifting cylinder is connected with the head rubberizing lifting seat;

the head rubberizing and glue drawing mechanism comprises a head rubberizing transverse moving seat 5501, a clamping cylinder B5502 and a head rubberizing side-pushing cylinder 5503, wherein the clamping cylinder B5502 and the head rubberizing side-pushing cylinder 5503 are installed on the head rubberizing transverse moving seat at intervals up and down, a head rubberizing pressing block B5504 is installed at the tail end of a cylinder rod of the clamping cylinder B, a head rubberizing upper pressing plate B5505 is fixedly installed above the head rubberizing pressing block B on the head rubberizing transverse moving seat, a pressing cylinder 5506 is vertically installed at the tail end of the cylinder of the head rubberizing side-pushing cylinder, a head rubberizing pressing roller 5507 is installed at the tail end of the cylinder rod of the pressing cylinder, a head rubberizing transverse guide rail 57 is installed on a substrate, and the head rubberizing transverse moving seat is in sliding fit with the head rubberizing transverse guide rail;

a driving device 58 for driving the head rubberizing transverse moving seat to transversely move is transversely arranged on the substrate;

the head gluing mechanism comprises a support 5601 and a glue sucking roller 5602 transversely arranged on the support, a plurality of sucking holes are formed in the glue sucking roller, a servo motor 5603 is arranged on the support, and one end of the glue sucking roller is connected with an output shaft of the servo motor for transmission.

In this embodiment, the support is mounted on the substrate via a lifting mechanism, the lifting mechanism includes a vertically arranged jacking cylinder 5604, and vertical guide rails arranged in bilateral symmetry, a slider 5605 is arranged on the vertical guide rail, and the slider is fixedly mounted on the support.

In this embodiment, the driving device is a linear sliding table; or the driving device is a screw rod driven by a motor, a corresponding screw rod nut is arranged on the screw rod, and the screw rod nut is fixedly arranged on the head rubberizing transverse moving seat.

In this embodiment, head rubberizing sticky tape unwinding mechanism is including installing unreeling the axle on the base plate, installing the charging tray that is used for installing the sticky tape book on unreeling the axle, be connected through one-way damping rotary device between charging tray and the unreeling axle, guarantee one-way unreeling, when unreeling, sticky tape adhesive surface is downward.

In this embodiment, the compressing cylinder is installed on the head rubberizing side plate 508, the head rubberizing side plate is installed at the end of the cylinder of the head rubberizing side pushing cylinder, the head rubberizing transverse moving seat is installed with a head rubberizing transverse guide rail 509, and the head rubberizing side plate is in sliding fit with the head rubberizing transverse guide rail.

In this embodiment, a head paste lifting cylinder 409 is installed at the upper limit position of the head paste lifting seat on the substrate.

When the head rubberizing mechanism is used, the outer end of the adhesive tape is pressed and fixed by the head rubberizing pressing block A and the head rubberizing pressing block A of the head rubberizing mechanism, the head glue-preparing vertical cylinder of the head rubberizing mechanism drives the head rubberizing rubber-pulling roller to pull out the adhesive tape on the head rubberizing adhesive tape unwinding mechanism, then the driving device drives the head rubberizing rubber-pulling mechanism to move towards the head rubberizing mechanism, after the head rubberizing pressing block B and the head rubberizing pressing block B of the head rubberizing rubber-pulling mechanism press and fix the outer end of the adhesive tape in place, the head rubberizing pressing block A and the head rubberizing pressing block A of the head rubberizing mechanism do not press and fix the adhesive tape again, then the driving device drives the head rubberizing rubber-pulling mechanism to move and reset and pull out the adhesive tape in place, when the adhesive tape is pulled out, the adhesive tape drives the head rubberizing rubber-pulling roller to reset, and after the head rubberizing pressing block A and head rubberizing pressing block A of the head rubberizing mechanism are pulled out in place, Go up head rubberizing briquetting A and press solid sticky tape, then, head rubberizing side pushes away the cylinder and will compress tightly the cylinder and release to target in place, compress tightly cylinder drive head rubberizing compression roller and press the sticky tape at the rubber suction cylinder of head rubberizing mechanism, rubber suction cylinder adsorbs the sticky tape, then, head rubberizing cylinder drive head rubberizing cutter cuts off the sticky tape, afterwards, the jacking cylinder drives and inhales the rubber suction cylinder and rises to target in place, servo motor drive rubber suction cylinder rotates, make the sticky tape glue at the pole piece head, paste the back, rubber suction cylinder no longer adsorbs the sticky tape, and the jacking cylinder drives head rubberizing mechanism and descends and resets, head rubberizing side pushes away the cylinder and drives and compress tightly the cylinder and reset, wait for next rubberizing.

In the second embodiment, because different pole pieces have different rubberizing densities, the distance between two adjacent negative pressure adsorption plates 250 needs to be adjusted in the rubberizing process, so as to adjust the distance between the two adjacent negative pressure adsorption plates 250, in this embodiment, a distance adjustment guide rail 1310 is fixed on the tracing transverse support, a distance adjustment slider 1320 is slidably fitted on the distance adjustment guide rail, a pair of negative pressure adsorption plates is arranged on the upper portion and the lower portion of each pole piece, one negative pressure adsorption cylinder is fixed on the tracing transverse support plate, the other negative pressure adsorption cylinder is fixed on the distance adjustment slider, a distance adjustment hole 1321 is arranged above the distance adjustment slider, a distance adjustment cylinder 1330 which is driven by a distance adjustment screw motor 1340 to move transversely is arranged on the tracing transverse support plate, and a telescopic end of the distance adjustment cylinder 1330 has a distance adjustment insertion shaft 1322 which can extend into the distance adjustment hole.

During operation, the distance adjusting screw motor 1340 controls the movement of the distance adjusting cylinder 1330 independently, when distance adjustment is needed, the distance adjusting insertion shaft 1322 is inserted into the distance adjusting hole 1321 under the driving of the distance adjusting cylinder 1330, then the distance adjusting screw motor 1340 moves so as to adjust the distance adjusting slider 1320 to move on the distance adjusting guide rail to control the distance between two adjacent negative pressure adsorption plates 250, distance adjustment actions can be operated independently or before the operation of the tracing transverse driving device, and the transverse driving device operates after distance adjustment is completed.

As shown in fig. 14 to 18, in the lithium battery composite process, an anode sheet is required. And feeding the pole piece and the diaphragm into a compounding device, applying a certain pressure to the pole piece and the diaphragm by the compounding device for pasting and compounding, and feeding the pole piece and the diaphragm to a winding device for winding after compounding. In the process of winding the battery core of the lithium battery, the pole pieces are cut off after one battery core is wound, the next pole piece is fed to the compounding station to prepare for winding of the next battery core, and the feeding of the compounding station is different from the traditional winding feeding. Therefore, how to feed the pole pieces needs to be correspondingly designed to be matched with the composite device, a pole piece straight feeding mechanism for guiding the pole piece to be fed is arranged on one side of the feeding end of the composite mechanism, the pole piece straight feeding mechanism comprises clamping and feeding components 35 and feeding and cutting components 37 which are arranged on the rack 100 at intervals from left to right, the clamping and feeding components are installed on the rack through a first transverse mechanism 32, and the feeding and cutting components are installed on the rack through a second transverse mechanism 3;

the clamping and conveying assembly comprises a feeding fixed frame A and a lifting frame A3505 which is installed at the lower end of the feeding fixed frame A3504 and is in sliding fit with the feeding fixed frame A, a feeding conveying roller A3501 is installed in the feeding fixed frame A, a feeding conveying roller B3502 is arranged below the feeding conveying roller A, the feeding conveying roller B is fixedly installed on the upper side face of the lifting frame A, a feeding lifting cylinder A3503 which drives the lifting frame to lift is vertically installed in the middle of the bottom end of the feeding fixed frame A, horizontal upper clamping plates 3507 and horizontal lower clamping plates 3806 are arranged on the output side of the clamping and conveying assembly at intervals from top to bottom, and the horizontal upper clamping plates and the horizontal lower clamping plates are respectively and fixedly installed on the feeding fixed frame and the lifting frame;

pan feeding cutting assembly is including last blade holder 3702, cutting backup pad 3703, the lower fixing base 3701 that from top to bottom interval set up, cutting backup pad output side is provided with pan feeding activity cutter 3704, and last blade holder rear end fixed mounting has fixed cutter, installs the fixed cutter of drive on the lower fixing base and goes up and down in order to cut off the driving piece of pole piece.

In this embodiment, the feeding guide rail 38 is installed on the frame along the transverse direction; the first transverse moving mechanism comprises a left moving seat 3201 and a clamping and conveying linear sliding table 3202 for driving the left moving seat to transversely move, the clamping and conveying linear sliding table is fixedly arranged on the rack, the left moving seat is fixedly arranged at the sliding end of the clamping and conveying linear sliding table, and the left moving seat is in sliding fit with the feeding guide rail; the two transverse moving mechanisms comprise a feeding transverse moving cylinder 3302 and a right moving seat 3301, the feeding transverse moving cylinder is fixedly installed on the rack, the tail end of a cylinder rod of the feeding transverse moving cylinder is connected with the right moving seat, and the right moving seat is in sliding fit with the feeding guide rail.

In this embodiment, a feeding base 39 is installed at the upper end of the left moving seat, a deviation correcting component 34 and a clamping component are sequentially installed at the lower end of the feeding base along a conveying direction, a feeding fixing frame a is fixedly installed on the feeding base, the deviation correcting component comprises a feeding fixing frame B3402 and a lifting frame B3403 installed at the lower end of the feeding fixing frame B and in sliding fit with the feeding fixing frame B, a feeding conveying roller C3405 is installed in the feeding fixing frame B, a feeding conveying roller D3406 is arranged below the feeding conveying roller C, the feeding conveying roller D is fixedly installed on the upper side surface of the lifting frame B, a feeding lifting cylinder B3404 for driving the lifting frame to lift is vertically installed in the middle of the bottom end of the feeding fixing frame B, a feeding deviation correcting feeding guide rail 3407 is installed at the lower end of the feeding base along the longitudinal direction, the feeding correcting linear sliding fit with the feeding deviation correcting guide rail on the feeding fixing frame B is installed at the upper end of the feeding base along the longitudinal direction, and the feeding fixed frame B is fixedly connected with the sliding end of the deviation-rectifying linear sliding table.

In this embodiment, the driving member includes a longitudinally arranged cutting linear sliding table 3707, an upper driving rod 3710 and a lower driving rod 3711, the cutting linear sliding table is fixedly mounted on the lower fixing seat, a driving block 3708 is mounted at the movable end of the cutting linear sliding table, two arc driving grooves 3709 are symmetrically arranged on the driving block from top to bottom, guide pins in sliding fit with the arc driving grooves are arranged in the arc driving grooves, and the upper guide pin and the lower guide pin are respectively connected and fixed with the upper driving rod and the lower driving rod; cutting backup pad below is provided with lift blade holder 3705, pan feeding activity cutter fixed mounting is in lift blade holder rear end, and it is fixed with the lift blade holder to go up actuating lever upper end, and lower fixing base below is provided with linkage plate 3712, and lower actuating lever lower extreme is connected fixedly with the linkage plate, and the vertical outer guide rod 3706 of wearing to establish the fixing base of installing in linkage plate both ends, outer guide rod upper end and last blade holder are connected fixedly, and lift blade holder lower extreme both sides are vertical to be equipped with the pan feeding inner guide rod 3713 of wearing to establish the fixing base, two vertical guide rods 3714 of pan feeding of cutting backup pad downside bilateral symmetry installation, the vertical spring 3715 of installing between cutting backup pad and the lift blade holder.

In this embodiment, the upper dust-pumping longitudinal pipe 39 and the lower dust-pumping longitudinal pipe 311 are respectively arranged above and below the output side of the cutting support plate, dust-pumping holes are respectively formed in the upper dust-pumping longitudinal pipe and the lower dust-pumping longitudinal pipe, the upper dust-pumping longitudinal pipe is fixedly connected with the upper tool apron, and the lower dust-pumping longitudinal pipe is fixedly connected with the lifting tool apron.

In this embodiment, be provided with the cavity in the cutting backup pad, the dust extraction hole of intercommunication cavity is seted up to cutting backup pad upper surface, and the hole of taking out of intercommunication cavity is seted up to cutting backup pad side.

In this embodiment, a detection assembly 36 is installed on the lower fixing seat on the output side of the cutting support plate, the detection assembly includes a feeding frame body 3601, a feeding longitudinal screw 3602 is installed in the feeding frame body at an upper-lower interval, a knob is installed at one end of the feeding longitudinal screw, a nut 3603 in threaded fit with the feeding longitudinal screw is installed on the feeding longitudinal screw, a pole piece deckle board 3604 and a detection mounting board 3605 are installed on the input side of the feeding frame body at a front-rear interval, the pole piece deckle board and the detection mounting board are respectively connected and fixed with nuts on the two screws, a detection laser sensor 606 is installed on the detection mounting board, and notches for pole pieces to pass through are formed in the pole piece deckle board and the detection mounting board.

In this embodiment, tab guiding plates 607 are installed on the upper and lower sides of the notch on the detection installation plate.

When feeding, the deviation correcting component firstly clamps the pole to convey the pole piece, meanwhile, the longitudinal position of the pole piece is adjusted to ensure that the pole piece passes through a conveying space between the horizontal upper clamping plate and the horizontal lower clamping plate accurately without deviation, after the head of the pole piece is conveyed to the outer end of the horizontal upper clamping plate to reach a set distance (for example, the head of the pole piece is 35-40mm away from the outer end of the horizontal upper clamping plate), the clamping and conveying component clamps the pole piece; then, the first transverse moving mechanism sends the pole piece to a feeding cutting assembly in a straight manner, and the head end of the pole piece enters a composite device; then, the pole piece is not clamped by the clamping and conveying assembly and the deviation correcting assembly, and the first transverse moving mechanism drives the clamping and conveying assembly and the deviation correcting assembly to transversely move and reset; and then, cutting off the pole piece by the feeding cutting assembly, thereby completing the feeding of the pole piece at one time. The device can ensure that the straight feeding is convenient to adapt to the composite device, and the deviation rectification is performed to ensure the centering in the process of outputting.

In this embodiment, the winding head adopts a direct-drive three-winding-needle winding head device, which includes a winding turret 62 mounted on a winding base 61, the winding turret is rotatably connected with the winding base, three direct-drive winding-needle devices 63 are uniformly mounted in the brick tower along the circumference of the axis of the brick tower, and the three direct-drive winding-needle devices respectively perform the circular actions of winding the battery cell, pasting the battery cell, unloading and pulling the needle;

the direct-drive needle winding device comprises a needle winding mechanism 6301, a sliding block 6304, a spline shaft 6302 and a spline motor 6303 which are sequentially arranged from front to back, wherein the spline motor is a through motor, the spline motor is fixedly arranged on a winding turret, the spline motor is sleeved at the rear end of the spline shaft, the spline motor is directly connected with the spline shaft through a spline outer barrel 6308, the needle winding mechanism is fixedly arranged at the front end of the spline shaft, the middle part of the sliding block is sleeved at the front part of the spline shaft, and the sliding block is fixedly arranged on the spline shaft through a bearing seat;

the spline motor is connected with a wire through a conductive slip ring;

the winding machine is characterized in that two needle pulling and inserting mechanisms 64 are arranged on the winding machine base at intervals up and down, each needle pulling and inserting mechanism comprises a winding linear sliding table 6401 arranged along the axial direction and a mounting seat 6402 arranged at the moving end of the winding linear sliding table, a sliding seat 6404 and a needle pulling and inserting cylinder 6403 are sequentially arranged on the mounting seat from inside to outside along the radial direction, the sliding seat is in sliding fit with the mounting seat through a radial guide rail, the outer end of the sliding seat is connected with the tail end of a cylinder rod of the needle pulling and inserting cylinder, and a shifting rod 6405 capable of shifting a sliding block is arranged at the inner end of the sliding seat; the needle pulling and inserting mechanism on the upper side is used for pushing the needle winding mechanism of the direct-drive needle winding device which moves to the position to move forwards to perform needle inserting; the lower pin pulling mechanism is used for pushing the pin winding mechanism of the direct-drive pin winding device which moves to the position to move backwards to pull the pin.

In this embodiment, a ring gear 6201 coaxial with the winding turret is mounted on the rear end of the winding turret, a winding turret motor 6202 is mounted on the winding machine base, and a driving gear 6203 in meshing transmission with the ring gear is mounted on an output shaft of the winding turret motor.

In this embodiment, linear bearings 6305 are axially installed at both ends of the sliding block, a winding guide shaft 6306 is inserted into the linear bearings, and the winding guide shaft is fixedly installed in the winding turret.

In this embodiment, roll up needle mechanism including rolling up the needle file, roll up the needle subassembly, roll up the needle tailstock, roll up the needle subassembly and insert a roll needle file and roll up the needle tailstock respectively, it includes first outer book needle 6312 to roll up the needle subassembly, second outer book needle 6315, first outer book needle and second outer book needle are placed on same circumference 180 °, be equipped with first interior pressure needle 6313 in the first outer book needle, be equipped with second interior pressure needle 6314 in the second outer book needle, roll up the needle tailstock including coiling fixing base 6310, coiling fixing base and integral key shaft front end fixed connection, be equipped with gliding sliding block 6316 in the coiling fixing base, first outer book needle and second interior pressure needle all are fixed in the coiling fixing base, first interior pressure needle and second outer book needle all are fixed in the sliding block, be equipped with the gliding driving piece of control sliding block in the coiling fixing base.

In this embodiment, the driving element is a thimble 6309, the thimble is slidably mounted in the winding fixing seat, the sliding block is provided with a roller 6318 contacting with the thimble, the winding fixing seat is further provided with at least one winding spring for resetting the sliding block after the thimble is separated from the roller, and the thimble moves back and forth to drive the first inner pressing pin and the second outer pressing pin to approach or separate from the first outer pressing pin and the second inner pressing pin to clamp or release the substrate passing between the first inner pressing pin and the second inner pressing pin.

In this embodiment, the front end of the thimble is provided with a conical surface matched with the roller.

In this embodiment, a winding push rod 6307 penetrates through the spline shaft in the axial direction, the ejector pin is fixedly installed at the front end of the winding push rod, a wrong-stitch mechanism 65 for driving the winding push rod to clamp or loosen the base material by the winding needle assembly is arranged at the rear side of the winding push rod, the wrong-stitch mechanism comprises a support fixedly installed at the rear end of the spline motor, a rotary clamping cylinder 6501 installed on the support, a swing arm 6502 installed at the tail end of a cylinder rod of the rotary clamping cylinder, and an ejector pin 6503 installed at the tail end of the swing arm for pushing the winding push rod, the ejector pin is located at the rear side of the winding push rod, a reset winding spring 6311 is sleeved at the rear end of the winding push rod, and the front end and the rear end of the reset winding spring are respectively abutted against the spline shaft and the winding push rod.

In this embodiment, a front support mechanism 66 is installed on the winding machine base on the front side of the winding turret, the front support mechanism includes a rotating frame 6601, the rotating frame is fixedly connected with the winding turret through a connecting shaft 6602, the rotating frame, the connecting shaft and the winding turret are coaxial, three support assemblies are uniformly distributed on the circumference of the rotating frame, the support assemblies and the direct-drive needle winding device are arranged in a one-to-one correspondence manner, each support assembly includes a winding front cylinder 6603, a winding pull rod 6604 and a winding support block 6605 which are sequentially connected from front to back, the winding pull rod is sleeved on the rotating frame and is in sliding fit with the rotating frame, and the winding support block can be sleeved at the front end of the needle winding mechanism to support the needle winding mechanism.

In this embodiment, the height-adjustable supporting leg 67 is installed at the lower end of the winding machine base, so that the device has a height fine adjustment function, the installation precision of the winding head can be conveniently adjusted, and the height-adjustable supporting leg is a known height-adjustable supporting leg.

If the invention discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.

Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.

Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit the same; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.

Claims

1. The lithium battery composite process winding machine is characterized by comprising a rack and a pair of pole piece unwinding mechanisms arranged on two sides of the rack and used for releasing a positive pole piece and a negative pole piece, wherein a diaphragm unwinding mechanism used for guiding a diaphragm is arranged beside each pole piece unwinding mechanism, the pole piece unwinding mechanism on one side is subjected to surface rubberizing by a corner rubberizing mechanism and then enters a composite mechanism to be guided out to form a blank A after being laminated with the diaphragm guided out by the diaphragm unwinding mechanism on the other side, the pole piece unwinding mechanism on the other side enters a composite mechanism to be guided out to form a blank B after being laminated with the diaphragm guided out by the diaphragm unwinding mechanism on the other side, and the blank A and the blank B are synchronously output and wound on a winding head.

2. The winding machine for the lithium battery composite process as claimed in claim 1, wherein the corner adhesive applying mechanism comprises a conveying roller for inputting the pole piece, a corner adhesive preparing mechanism arranged beside the conveying roller for outputting an adhesive tape, and a pair of corner attaching structures for attaching the adhesive tape to the upper surface and the lower surface of the pole piece; the corner chases after and pastes the structure and includes the fixed plate that chases after that is located the pole piece side, pursues and is provided with the negative pressure adsorption plate that can adsorb the sticky tape that is located pole piece top and below on pasting the fixed plate, and each negative pressure adsorption plate is removed along pole piece direction of delivery by the drive of horizontal drive arrangement, the negative pressure adsorption plate is fixed in can longitudinal movement pursue paste on the horizontal support.

3. The lithium battery composite process winding machine as claimed in claim 2, wherein the corner glue preparation mechanism comprises a corner glue preparation fixing plate located at the side of the pole piece, a pair of corner glue tray mounting discs respectively arranged at the upper part and the lower part of the pole piece and used for placing glue trays are fixed on the glue preparation fixing plate, a corner glue preparation roller for winding the glue is arranged at the side of each corner glue tray mounting disc, a cutter driven by a cutter cylinder fixed by the glue preparation fixing plate to move up and down is further arranged at the discharge end of the corner winch mounting disc, a glue pulling pneumatic clamping jaw is arranged at the front side of the cutter and fixed on a glue pulling sliding block, an electric lead screw for driving the glue pulling sliding block to move is arranged on the glue preparation fixing plate, a bearing plate fixed on the glue preparation fixing plate and used for bearing the glue is arranged between the cutter and the corner glue preparation roller, a corner glue pressing plate is arranged above the bearing plate, the corner adhesive tape pressing plate is driven by a pressing plate cylinder fixed on the adhesive preparing fixing plate.

4. The winding machine for the lithium battery composite process as claimed in claim 2, wherein the moving end of the transverse driving device is fixed with a tracing moving plate, the tracing moving plate is fixed with a pair of tracing vertical linear guide rails, the tracing transverse bracket is provided with a vertical guide groove in sliding fit with the tracing vertical linear guide rails, the tracing transverse bracket is fixed with a convex shaft, the convex shaft is limited in a track groove of the tracing fixed plate, the tracing fixed plate is fixed with a groove-shaped frame, the track groove is positioned on the groove-shaped frame and faces the tracing transverse bracket, the track groove comprises a high position far away from the pole piece and a low position close to the pole piece, the tracing transverse bracket moves in the track groove through the convex shaft in the process of driving the tracing transverse bracket to move transversely, the tracing transverse bracket moves up and down on the tracing vertical linear guide rails, the negative pressure adsorption plate at the upper part or the lower part of the pole piece is provided with a pair of negative pressure adsorption plates which are respectively fixed on the telescopic ends of different negative pressure adsorption cylinders, the utility model discloses a pole piece, including negative pressure adsorption plate, fixed plate cylinder, adjustable slide block, adjustable cylinder, adjustable lead screw motor drive lateral shifting's adjustable cylinder is provided with on the fixed plate by adjustable lead screw motor, adjustable cylinder's flexible end has the adjustable plug axle that can stretch into in the adjustable slide block.

5. The winding machine for the lithium battery composite process according to claim 1 or 2, wherein the composite mechanism comprises a composite support seat and a composite frame arranged on the composite support seat, an upper composite roller and a lower composite roller are arranged in the composite frame at intervals from top to bottom, the lower composite roller is fixedly arranged on the composite frame, two ends of the upper composite roller are arranged on composite sliders, a chute for accommodating the composite sliders is vertically arranged on the composite frame, a composite cylinder is vertically arranged above the chute on the support, the tail end of a composite cylinder rod of the composite cylinder is connected with the composite sliders, a wedge block adjusting mechanism for adjusting a gap between the upper composite roller and the lower composite roller is arranged below the composite sliders in the chute, and the composite sliders are erected on the wedge block adjusting mechanism; one end parts of the upper composite roller and the lower composite roller are respectively provided with an upper gear and a lower gear which can be mutually meshed and driven, one end of the lower composite roller is connected and driven with a composite roller motor, two ends of the lower composite roller are fixedly arranged on a composite frame through bearing seats, the upper composite roller is fixedly arranged on a composite sliding block through the bearing seats, the wedge block adjusting mechanism comprises a longitudinally arranged composite screw rod and a wedge block which is arranged on the composite screw rod and is in threaded fit with the composite screw rod, the upper surface of the wedge block and the lower surface of the composite sliding block are inclined planes, the composite screw rod is rotatably connected with the composite frame, the rear end of the composite screw rod penetrates through the composite frame, the rear end of the composite screw rod is provided with a handle, or the rear end of the composite screw rod is connected and driven with a composite roller adjusting motor, the wedge block is erected on the bearing seats of the lower composite roller, electric heaters are arranged in the upper composite roller and the lower composite roller, and a gap between the upper composite roller and the lower composite roller forms a pole piece composite interval, the input side of the composite frame in the pole piece composite interval is horizontally provided with a feeding guide plate, and the input end of the feeding guide plate inclines downwards to form an input guide surface.

6. The winding machine for lithium battery composite process according to claim 5, characterized in that: the output end of the blank A is provided with a pole piece head rubberizing device, the pole piece head rubberizing device comprises a head rubberizing adhesive tape unwinding mechanism, a head rubberizing glue preparation mechanism, a head glue cutting mechanism and a head rubberizing glue pulling mechanism which are sequentially arranged on a base plate from left to right, and the head rubberizing mechanism is arranged above the base plate between the head rubberizing mechanism and the head rubberizing glue pulling mechanism; the head rubberizing and glue-preparing mechanism comprises a head rubberizing roller A and a head rubberizing roller B which are sequentially arranged, a head rubberizing and glue-drawing roller is arranged between the head rubberizing roller A and the head rubberizing roller B, the head rubberizing and glue-drawing roller is installed on a head rubberizing sliding block, a head rubberizing and glue-drawing head rubberizing vertical guide rail is installed on a base plate, the head rubberizing sliding block is in sliding fit with the head rubberizing and glue-drawing head rubberizing vertical guide rail, a head glue-preparing vertical cylinder is installed on the upper side or the lower side of the head rubberizing sliding block, and the sliding block is installed at the tail end of a cylinder of the head glue-preparing vertical cylinder;

7. The winding machine for lithium battery composite process according to claim 5, characterized in that: the pole piece straight feeding mechanism is arranged on one side of the feeding end of the composite mechanism and used for guiding pole piece feeding, and comprises clamping and conveying assemblies and feeding and cutting assemblies which are arranged on the rack at intervals from left to right, wherein the clamping and conveying assemblies are installed on the rack through a first transverse moving mechanism, and the feeding and cutting assemblies are installed on the rack through a second transverse moving mechanism;

8. The winding machine for lithium battery composite process according to claim 1, characterized in that: a feeding guide rail is transversely arranged on the rack; the first transverse moving mechanism comprises a left moving seat and a clamping and conveying linear sliding table for driving the left moving seat to transversely move, the clamping and conveying linear sliding table is fixedly arranged on the rack, the left moving seat is fixedly arranged at the sliding end of the clamping and conveying linear sliding table, and the left moving seat is in sliding fit with the feeding guide rail; the two transverse moving mechanisms comprise a feeding transverse moving cylinder and a right moving seat, the feeding transverse moving cylinder is fixedly arranged on the rack, the tail end of a cylinder rod of the feeding transverse moving cylinder is connected with the right moving seat, and the right moving seat is in sliding fit with the feeding guide rail;

9. The winding machine for lithium battery composite process according to claim 1, characterized in that: the winding head comprises a direct-drive three-winding-needle winding head device, and is characterized in that: the winding turret is rotatably connected with the winding machine base, and three direct-drive winding needle devices are uniformly arranged in the brick tower along the circumference of the axis of the brick tower;

roll up needle mechanism including rolling up the needle file, roll up the needle subassembly, roll up the needle tailstock, roll up the needle subassembly and insert respectively and roll up the needle file and roll up the needle tailstock, roll up the needle subassembly and include first outer book needle, the outer book needle of second, first outer book needle and the outer book needle of second are placed 180 on same circumference, be equipped with first internal pressure needle in the first outer book needle, be equipped with second internal pressure needle in the outer book needle of second, roll up the needle tailstock including coiling the fixing base, coiling fixing base and integral key shaft front end fixed connection, be equipped with the sliding block that can slide in the coiling the fixing base, first outer book needle and second internal pressure needle all are fixed in the coiling fixing base, first internal pressure needle and the outer book needle of second all are fixed in the sliding block, be equipped with the gliding driving piece of control sliding block in the coiling fixing base.

10. A winding method for a lithium battery composite process, characterized in that the lithium battery composite process winding machine according to claim 7 is used, and the method comprises the following steps: the method comprises the following steps: