Lithium battery composite process winding machine and processing method

Abstract

The present invention provides a lithium battery composite process winding machine and processing method, comprising a frame and a pair of electrode sheet unwinding mechanisms arranged on both sides of the frame for releasing positive electrode sheets and negative electrode sheets, a diaphragm unwinding mechanism for introducing a diaphragm is provided on the side of each electrode sheet unwinding mechanism, wherein the electrode sheet unwinding mechanism on one side is surface-glued by a corner gluing mechanism, and then is laminated with the diaphragm exported by the diaphragm unwinding mechanism on its side, and then enters a composite mechanism for export to form a blank A, and the electrode sheet unwinding mechanism on the other side is laminated with the diaphragm exported by the diaphragm unwinding mechanism on its side, and then enters a composite mechanism for export to form a blank B, and the blanks A and B are synchronously output and wound on a winding head. The composite mechanism designed by the present invention composites the anode and cathode with the diaphragm respectively through a composite process, and then the four materials are converted into two materials for winding, so that tension control is easier than before, low tension control can be achieved, and efficiency is higher.

Description

Technical Field

[0001] The invention relates to a lithium battery composite process winding machine and a processing method. Background Art

[0002] In the industry, winding machines typically pass the cathode, anode, and two layers of separator film through rollers and bring them together at a winding pin for winding. These four materials, passing through numerous rollers before being brought together, present a series of challenges, including difficulty controlling tension and poor alignment. This leads to poor quality and consistency in battery cell products. Summary of the Invention

[0003] This invention addresses the aforementioned issues by achieving a composite, subsequent winding of the cathode and anode electrodes and separators of lithium batteries. This is a novel lithium battery winding machine. It includes a electrode unwinding mechanism, a separator unwinding mechanism, a corner gluing mechanism, a feeding mechanism, a laminating mechanism, a head gluing mechanism, a CCD visual inspection mechanism, a buffer mechanism, a correction mechanism, a winding head, a tail gluing mechanism, a blanking mechanism, a pre-pressing mechanism, a discharge pull belt, and tension control.

[0004] The specific implementation scheme of the present invention is: a lithium battery composite process winding machine, including a frame and a pair of electrode unwinding mechanisms arranged on both sides of the frame for releasing positive electrode sheets and negative electrode sheets, and each electrode unwinding mechanism is provided with a diaphragm unwinding mechanism for introducing a diaphragm. The electrode unwinding mechanism on one side is surface-glued by a corner gluing mechanism and then bonded with the diaphragm exported by the diaphragm unwinding mechanism next to it, and then enters a composite mechanism to be exported to form a blank A. The electrode unwinding mechanism on the other side is bonded with the diaphragm exported by the diaphragm unwinding mechanism next to it and then enters a composite mechanism to be exported to form a blank B. Blanks A and B are synchronously output and wound on the winding head.

[0005] Furthermore, the corner gluing mechanism includes a conveying roller for inputting the electrode and a corner gluing mechanism located next to the conveying roller for outputting the tape and a pair of corner chasing structures for sticking the tape to the upper and lower surfaces of the electrode; the corner chasing structure includes a chasing fixing plate located next to the electrode, and negative pressure adsorption plates capable of adsorbing the tape are provided on the chasing fixing plate above and below the electrode, each negative pressure adsorption plate is driven by a transverse driving device to move along the electrode conveying direction, and the negative pressure adsorption plate is fixed on a chasing transverse bracket that can move longitudinally.

[0006] Furthermore, the corner glue preparation mechanism includes a corner glue preparation fixing plate located beside the pole piece, and a pair of corner glue disc mounting plates are fixed on the glue preparation fixing plate, which are respectively arranged on the upper and lower parts of the pole piece for placing the glue disc. Each corner glue disc mounting plate has a corner glue preparation roller on the side for winding the tape, and the discharge end of the corner capstan mounting plate is also provided with a cutter that is driven up and down by a cutter cylinder fixed by the glue preparation fixing plate, and the front side of the cutter has a glue pulling pneumatic clamp, and the glue pulling pneumatic clamp is fixed on a glue pulling slider, and the glue preparation fixing plate has an electric screw that drives the glue pulling slider to move, and a support plate fixed on the glue preparation fixing plate for carrying the tape is provided between the cutter and the corner glue preparation roller, and a corner tape pressure plate is provided above the support plate, and the corner tape pressure plate is driven by a pressure plate cylinder fixed on the glue preparation fixing plate.

[0007] Furthermore, a moving end of the horizontal driving device is fixed with a chasing moving plate, and a pair of chasing vertical linear guide rails are fixed on the chasing moving plate, and a vertical guide groove is provided at the rear of the chasing horizontal bracket, and the chasing horizontal bracket is fixed with a convex shaft, and the convex shaft is limited to be located in the track groove of the chasing fixed plate, and a groove-shaped frame is fixed on the chasing fixed plate, and the track groove is located on the groove-shaped frame facing the chasing horizontal bracket, and the track groove includes a high position away from the pole piece and a low position close to the pole piece. In the process of the horizontal driving device driving the chasing horizontal bracket to move horizontally, the chasing horizontal bracket is moved up and down on the chasing vertical linear guide rail by moving the convex shaft in the track groove, and the negative pressure adsorption plate above or below the pole piece has a The pairs are respectively fixed on the telescopic ends of different negative pressure adsorption cylinders, a negative pressure hole is provided at the bottom of the negative pressure adsorption plate, the negative pressure hole of the negative pressure adsorption plate is connected to a negative pressure pump, a distance-adjusting guide rail is fixed on the chasing horizontal bracket, a distance-adjusting slider is slidably fitted on the distance-adjusting guide rail, an adsorption plate cylinder is fixed along the longitudinal extension of the distance-adjusting slider and one end of the chasing horizontal bracket, a pair of negative pressure adsorption plates are provided on the upper and lower parts of the pole piece, one of the negative pressure adsorption cylinders is fixed on the chasing movable plate, and the other negative pressure adsorption cylinder is fixed on the distance-adjusting slider, a distance-adjusting hole is provided above the distance-adjusting slider, a distance-adjusting cylinder which is driven to move laterally by a distance-adjusting screw motor is provided on the chasing fixed plate, and the telescopic end of the distance-adjusting cylinder has a distance-adjusting plug shaft which can be inserted into the distance-adjusting hole.

[0008] Furthermore, the composite mechanism includes a composite support seat and a composite frame installed on the composite support seat, an upper composite roller and a lower composite roller are installed in the composite frame at intervals above and below, the lower composite roller is fixedly installed on the composite frame, both ends of the upper composite roller are installed on the composite slider, a slide groove for accommodating the composite slider is vertically opened on the composite frame, a composite cylinder is vertically installed on the bracket above the slide groove, the end of the composite cylinder rod of the composite cylinder is connected to the composite slider, a wedge adjustment mechanism for adjusting the gap between the upper composite roller and the lower composite roller is installed in the slide groove below the composite slider, and the composite slider is mounted on the wedge adjustment mechanism; one end of the upper composite roller and the lower composite roller are respectively installed with an upper gear and a lower gear that can mesh with each other for transmission, one end of the lower composite roller is connected to the composite roller motor for transmission, both ends of the lower composite roller are fixedly installed on the composite frame via a bearing seat, and the upper composite roller is fixedly installed on the composite slider via a bearing seat.

[0009] Furthermore, the wedge adjustment mechanism includes a longitudinally placed composite screw, a wedge installed on the composite screw and threadedly engaged with the composite screw, the upper surface of the wedge and the lower surface of the composite slider are both inclined surfaces, the composite screw is rotatably connected to the composite frame, the rear end of the composite screw is passed through the composite frame, a handle is installed at the rear end of the composite screw, or the rear end of the composite screw is connected to the adjusting composite roller motor for transmission, and the wedge is placed on the bearing seat of the lower composite roller.

[0010] Furthermore, electric heaters are installed in the upper composite roller and the lower composite roller, the gap between the upper composite roller and the lower composite roller forms a pole piece composite interval, and an incoming material guide plate is horizontally installed on the composite frame at the input side of the pole piece composite interval, and the input end of the incoming material guide plate is tilted downward to form an input guide surface.

[0011] Furthermore, the output end of the blank A is provided with a pole piece head gluing device, and the pole piece head gluing device includes a head gluing tape unwinding mechanism, a head gluing preparation mechanism, a head gluing cutting mechanism, and a head gluing pulling mechanism which are sequentially installed on the substrate from left to right, and a head gluing mechanism is installed above the substrate between the head gluing cutting mechanism and the head gluing pulling mechanism; the head gluing preparation mechanism includes a head gluing roller A and a head gluing roller B which are sequentially arranged, a head gluing pulling roller is provided between the head gluing roller A and the head gluing roller B, the head gluing pulling roller is installed on a head gluing sliding block, a head gluing pulling head gluing vertical guide rail is installed on the substrate, the head gluing sliding block is slidably matched with the head gluing pulling head gluing vertical guide rail, a head gluing vertical cylinder is installed on the upper or lower side of the head gluing sliding block, and the slider is installed on the cylinder end of the head gluing vertical cylinder;

[0012] The head glue cutting mechanism includes a head glue lifting seat, a clamping cylinder A and a head glue cutting cylinder which are sequentially installed on the head glue lifting seat from left to right. The end of the cylinder rod of the clamping cylinder A is installed with a head glue pressing block A. An upper pressing plate A is fixedly installed on the head glue lifting seat above the head glue pressing block A. A head glue cutting knife is installed at the end of the cylinder rod of the head glue cutting cylinder. The head glue lifting cylinder and the head glue vertical guide rail are installed on the base plate. The head glue lifting seat is slidably matched with the head glue vertical guide rail. The end of the cylinder rod of the head glue lifting cylinder is connected to the head glue lifting seat.

[0013] The head glue sticking and pulling mechanism includes a head glue sticking transverse displacement seat, a clamping cylinder B installed on the head glue sticking transverse displacement seat at intervals up and down, and a head glue sticking side pushing cylinder. A head glue sticking pressure block B is installed at the end of the cylinder rod of the clamping cylinder B. A head glue sticking upper pressing plate B is fixedly installed on the head glue sticking transverse displacement seat above the head glue sticking pressure block B. A pressing cylinder is vertically installed at the cylinder end of the head glue sticking side pushing cylinder. A head glue sticking pressure roller is installed at the end of the cylinder rod of the pressing cylinder. A head glue sticking transverse guide rail is installed on the base plate. The head glue sticking transverse displacement seat and the head glue sticking transverse guide rail are slidably matched.

[0014] A driving device for driving the head glue-applying transverse shifting seat to move transversely is installed transversely on the base plate;

[0015] The head glue sticking mechanism includes a bracket, a horizontal glue sucking roller installed on the bracket, a plurality of suction holes are opened on the glue sucking roller, a servo motor is installed on the bracket, and one end of the glue sucking roller is connected to the output shaft of the servo motor for transmission.

[0016] Furthermore, a straight electrode feeding mechanism for receiving and guiding the electrode feeding is provided on one side of the feeding end of the composite mechanism, which includes a pinching assembly and an infeed cutting assembly spaced apart on the left and right sides of the frame. The pinching assembly is mounted on the frame via a first transverse movement mechanism, and the infeed cutting assembly is mounted on the frame via a second transverse movement mechanism.

[0017] The pinching and conveying assembly includes a feed fixed frame A, a lifting frame A installed at the lower end of the feed fixed frame A and slidingly matched therewith, a feed conveying roller A is installed in the feed fixed frame A, a feed conveying roller B is provided below the feed conveying roller A, the feed conveying roller B is fixedly installed on the upper side of the lifting frame A, and a feed lifting cylinder A for driving the lifting frame to lift is vertically installed in the middle of the bottom end of the feed fixed frame A. A horizontal upper splint and a horizontal lower splint are provided at intervals on the upper and lower sides of the output side of the pinching and conveying assembly, and the horizontal upper splint and the horizontal lower splint are fixedly installed on the feed fixed frame and the lifting frame respectively;

[0018] The feeding cutting assembly includes an upper knife seat, a cutting support plate, and a lower fixed seat which are spaced apart from top to bottom. A movable feeding cutter is provided on the output side of the cutting support plate. A fixed cutter is fixedly installed at the rear end of the upper knife seat. A driving member for driving the fixed cutter to rise and fall to cut off the electrode is installed on the lower fixed seat.

[0019] Furthermore, a feed guide rail is installed laterally on the frame; the first transverse movement mechanism includes a left movable seat and a pinching linear slide that drives the left movable seat to move laterally, the pinching linear slide is fixedly mounted on the frame, the left movable seat is fixedly mounted on the sliding end of the pinching linear slide, and the left movable seat is slidably matched with the feed guide rail; the second transverse movement mechanism includes a feed transverse movement cylinder and a right movable seat, the feed transverse movement cylinder is fixedly mounted on the frame, the end of the cylinder rod of the feed transverse movement cylinder is connected to the right movable seat, and the right movable seat is slidably matched with the feed guide rail;

[0020] A feed base is installed on the upper end of the left movable seat, and a correction component and a clamping component are installed in sequence on the lower end of the feed base along the conveying direction. The feed fixed frame A is fixedly installed on the feed base, and the correction component includes a feed fixed frame B, and a lifting frame B installed at the lower end of the feed fixed frame B and slidingly matched with it. A feed conveying roller C is installed in the feed fixed frame B, and a feed conveying roller D is arranged below the feed conveying roller C. The feed conveying roller D is fixedly installed on the upper side of the lifting frame B, and a feed lifting cylinder B for driving the lifting frame to lift is vertically installed in the middle of the bottom end of the feed fixed frame B. A feed correction feed guide rail is installed longitudinally on the lower end of the feed base, and the feed fixed frame B slides with the feed correction feed guide rail. A correction linear slide is installed longitudinally on the upper end of the feed base, and the feed fixed frame B is fixedly connected to the sliding end of the correction linear slide.

[0021] Furthermore, the winding head comprises a direct-drive three-needle winding head device, characterized in that it comprises a winding turret mounted on a winding machine base, the winding turret being rotatably connected to the winding machine base, and three direct-drive needle winding devices being evenly distributed along the circumference of the axis of the brick tower;

[0022] The direct-drive needle winding device includes a needle winding mechanism, a sliding block, a spline shaft, and a spline motor, which are arranged in sequence from front to back. The spline motor is a through-type motor, which is fixedly mounted on the winding turret, the spline motor is sleeved on the rear end of the spline shaft, and the spline motor is directly connected to the spline shaft via a spline outer cylinder. The needle winding mechanism is fixedly mounted on the front end of the spline shaft, the middle part of the sliding block is sleeved on the front end of the spline shaft, and the sliding block is fixedly mounted on the spline shaft via a bearing seat.

[0023] Two needle-pulling and -pulling mechanisms are installed at intervals above and below the winding machine base. The needle-pulling and -pulling mechanisms include a winding linear slide arranged along the axial direction and a mounting base installed at the movable end of the winding linear slide. A sliding seat and a needle-pulling and -pulling cylinder are sequentially arranged on the mounting base in the radial direction from the inside to the outside. The sliding seat is slidably matched with the mounting seat via a radial guide rail. The outer end of the sliding seat is connected to the end of the cylinder rod of the needle-pulling and -pulling cylinder. A shifting rod capable of shifting the sliding block is installed at the inner end of the sliding seat.

[0024] A ring gear coaxial with the winding turret is installed on the rear end of the winding turret, a winding turret motor is installed on the winding machine base, and a driving gear meshing with the ring gear is installed on the output shaft of the winding turret motor;

[0025] Both ends of the sliding block are axially mounted with linear bearings, a winding guide shaft is passed through the linear bearings, and the winding guide shaft is fixedly mounted in the winding turret;

[0026] The needle winding mechanism includes a needle winding seat, a needle winding assembly, and a needle winding tail seat. The needle winding assembly is respectively inserted into the needle winding seat and the needle winding tail seat. The needle winding assembly includes a first outer winding needle and a second outer winding needle. The first outer winding needle and the second outer winding needle are placed 180° on the same circumference. A first inner pressure needle is provided in the first outer winding needle, and a second inner pressure needle is provided in the second outer winding needle. The needle winding tail seat includes a winding fixed seat, which is fixedly connected to the front end of the spline shaft. A sliding block that can slide is provided in the winding fixed seat. The first outer winding needle and the second inner pressure needle are both fixed to the winding fixed seat. The first inner pressure needle and the second outer winding needle are both fixed to the sliding block. A driving member for controlling the sliding of the sliding block is provided in the winding fixed seat.

[0027] The present invention also includes a lithium battery composite process winding method, using the lithium battery composite process winding machine as described above, characterized in that it includes the following steps:

[0028] (1) The pole piece is released from the two pole piece unwinding mechanisms, and the pole piece released by one of the pole piece unwinding mechanisms passes through the corner gluing mechanism, and the corner gluing mechanism puts the wound tape onto the corner glue disc mounting plate, and places the tape symmetrically above and below the pole piece. The end of the tape passes around the corner glue roller, passes through the support plate and the cutter, and is clamped by the pneumatic glue clamp. The pneumatic glue clamp moves toward the pole piece under the drive of the electric lead screw, and the displacement distance of the pneumatic glue clamp meets the preset length;

[0029] (2) The lower surface of the negative pressure adsorption plate has a negative pressure hole connected to the negative pressure pump. The negative pressure can adsorb the tape between the glue pulling structure and the cutter. After the cutter cuts the tape, the pitch adjustment screw motor controls the movement of the pitch adjustment cylinder alone. When the pitch adjustment is required, the pitch adjustment plug shaft is inserted into the pitch adjustment hole under the drive of the pitch adjustment cylinder. Then the pitch adjustment screw motor moves to adjust the movement of the pitch adjustment slider on the pitch adjustment guide rail, thereby controlling the distance between two adjacent negative pressure adsorption plates.

[0030] (3) After the distance adjustment is completed, the transverse drive device drives the pole piece to move in the output direction, and accelerates and follows the pole piece in the same direction while the pole piece moves. When the cam is at the low position of the track groove, the negative pressure adsorption plates above and below the pole piece are symmetrically pressed to stick the tape to the pole piece, and then the negative pressure adsorption plates are reset.

[0031] (4) The electrode with glue on the corner is output through the electrode straight feeding mechanism, and the electrode released from the electrode unwinding mechanism on the other side is directly output through the electrode straight feeding mechanism. When the electrode straight feeding mechanism feeds, the correction component first clamps the column to convey the electrode, and at the same time, adjusts the longitudinal position of the electrode to ensure that the electrode accurately passes through the conveying space between the horizontal upper clamping plate and the horizontal lower clamping plate without deviation. After the head of the electrode is conveyed to the outer end of the horizontal upper clamping plate and reaches the set distance, the clamping component clamps the electrode; then, the first transverse mechanism sends the electrode straight to the feeding cutting component, and the head end of the electrode enters the composite device; then, the clamping component and the correction component no longer clamp the electrode, and the first transverse mechanism moves the clamping component and the correction component horizontally to reset; then, the feeding cutting component cuts off the electrode, thereby completing one electrode feeding;

[0032] (5) The electrode flat feeding mechanism on both sides feeds the diaphragm released by the diaphragm unwinding mechanism and combines them to form blanks A and B respectively through a composite mechanism;

[0033] (6) The output end of blank A is provided with a pole piece head gluing device, and after passing through the pole piece head gluing device, it is output and wound on the winding head together with blank B.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The composite mechanism designed in the present invention composites the anode and cathode with the diaphragm respectively through a composite process, and the four materials are converted into two materials before winding. The tension control is easier than before, and low tension control can be achieved.

[0036] 2. A tracking process is used for corner gluing. After the glue is prepared, it is accelerated to the same speed as the electrode. The upper and lower corner glues are pressed together at the same time and then separated, completing the entire gluing process. This method has a simple structure and high efficiency. It saves production cycle time and improves production efficiency.

[0037] 3. The laminating mechanism of the pole piece can adjust the gap between the upper and lower laminating rollers through the wedge adjustment mechanism according to the thickness of the incoming material. The upper laminating roller is driven to lift and press down by the laminating cylinder, and the laminating pressure is adjustable.

[0038] 4. In the head gluing structure, the gluing function of the pole piece side is realized after the pole piece and the diaphragm are compounded, ensuring that the head after the pole piece and the diaphragm are compounded does not separate when passing through the roller. The servo motor is used to pull the glue, which can control the pulling speed and effectively prevent the deformation of the tape; at the same time, it can realize the pulling action of any length of tape within the travel range.

[0039] 5. After adopting the new process, the present invention solves the problems of alignment of multiple electrode diaphragms and lithium plating of battery cells during the unwinding process of the electrode.

[0040] 6. During the lithium battery lamination process, the anode sheet and separator are fed into a lamination device. The lamination device applies a certain amount of pressure to the electrode sheet and separator to bond and laminate them. After lamination, the electrode sheet is fed to the winding device for winding. Because the electrode sheet is cut after each cell is wound during the lithium battery cell winding process, the next section of electrode sheet is fed into the lamination station to prepare for the winding of the next cell. The feeding of the lamination station is different from the traditional winding feeding. Therefore, the electrode sheet feeding method needs to be designed to adapt to the lamination device. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 The present invention is a schematic diagram of the overall structure of a lithium battery composite process winding machine.

[0042] Figure 2 This is a schematic diagram of the overall structure of the corner gluing device of the present invention.

[0043] Figure 3 The present invention is a schematic diagram of the structure of the glue preparation mechanism of the corner glue application device.

[0044] Figure 4 This is a schematic diagram of the partial structure of the cutter part of the glue preparation mechanism of the corner glue laminating device of the present invention.

[0045] Figure 5 This is a schematic diagram of the back structure of the glue preparation mechanism of the corner glue laminating device of the present invention.

[0046] Figure 6 It is a schematic diagram of the corner gluing device of the present invention.

[0047] Figure 7 It is a schematic diagram of the partial structure of the corner glue sticking device of the present invention.

[0048] Figure 8 It is a schematic diagram of the rear side of the corner gluing device of the present invention.

[0049] Figure 9 This is a schematic diagram of the structure of the head glue mechanism Figure 1 .

[0050] Figure 10 This is the structure diagram of the head sticker Figure 2.

[0051] Figure 11 It is a structural diagram of the head rubber cutting mechanism.

[0052] Figure 12 It is a structural diagram of the head glue sticking and pulling mechanism.

[0053] Figure 13 It is a structural diagram of the electrode straight feeding mechanism.

[0054] Figure 14 It is a schematic diagram of the installation structure of the first transverse movement mechanism and the second transverse movement mechanism of the electrode straight feeding mechanism.

[0055] Figure 15 This is a schematic diagram of the installation structure of the electrode straight feeding mechanism correction component and the clamping and conveying component.

[0056] Figure 16 It is a structural diagram of the feeding and cutting components of the electrode straight feeding mechanism.

[0057] Figure 17 It is a structural diagram of the detection component of the electrode straight feeding mechanism.

[0058] Figure 18 It is a structural diagram of the composite mechanism of the electrode straight feeding mechanism.

[0059] Figure 19 This is a schematic diagram of the structure of the winding head device Figure 1 .

[0060] Figure 20 This is a schematic diagram of the structure of the winding head device Figure 2 .

[0061] Figure 21 It is a structural diagram of the winding head direct-drive needle winding device.

[0062] Figure 22 This is a structural cross-sectional view of the winding head direct-drive needle winding device.

[0063] Figure 23 It is a structural diagram of the winding head needle mechanism.

[0064] In the figure: 100-frame; 101-pole piece unwinding mechanism; 102-diaphragm unwinding mechanism; 103-corner gluing mechanism; 104-combining mechanism, 105-head gluing mechanism, 106-pole piece straight feeding mechanism, 107-winding head;

[0065] 110-Corner glue preparation fixing plate, 120-Corner glue disc mounting plate, 130-Corner glue preparation roller, 140-Cutter, 141-Cutter cylinder, 150-Glue pulling pneumatic clamp, 151-Glue pulling slider, 160-Carrying plate, 161-Corner tape pressure plate, 162-Pressing plate cylinder, 210-Attachment fixing plate, 220-Attachment moving plate, 221-Attachment vertical linear guide rail, 230-Attachment horizontal bracket, 231-Protruding shaft, 240-Trough frame, 241-Rail groove, 250-Negative pressure adsorption plate, 1310-Adjustable distance guide rail, 1320-Adjustable distance slider, 1321-Adjustable distance hole, 1330-Adjustable distance cylinder, 1340-Adjustable distance screw motor.

[0066] 32-First transverse movement mechanism; 3201-Left moving seat; 3202-Pinching linear slide; 33-Second transverse movement mechanism; 3301-Right moving seat; 3302-Feeding transverse movement cylinder; 34-Correcting assembly; 3401-Correcting linear slide; 3402-Feeding fixed frame B; 3403-Lifting frame B; 3404-Feeding lifting cylinder B; 3405-Feeding conveyor roller C; 3406-Feeding conveyor roller D; 3407-Feeding guiding rail for correcting feed deviation; 35-Pinching assembly; 3501-Feeding conveyor roller A; 3502-Feeding conveyor roller B; 3503-Feeding lifting cylinder A; 3504-Feeding fixed frame A; 3505-Lifting frame A; 3506-Horizontal lower clamp; 3507-Horizontal upper clamp; 36-Detection assembly; 3601-Feeding frame Body; 3602-feeding longitudinal screw rod; 3603-nut; 3604-electrode fixed edge plate; 3605-detection mounting plate; 3606-detection laser sensor; 3607-electrode ear guide plate; 37-feeding cutting assembly; 3701-lower fixed seat; 3702-upper knife seat; 3703-cutting support plate; 3704-feeding movable cutter; 3705-lifting knife seat; 3706-outer guide rod; 3707-cutting linear slide; 3708-driving block; 3709-arc-shaped driving groove; 3710-upper driving rod; 3711-lower driving 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 longitudinal pipe.

[0067] 41-composite support seat; 42-composite frame; 43-upper composite roller; 44-lower composite roller; 45-composite roller motor; 46-lower gear; 47-upper gear; 48-composite cylinder; 49-; 410-composite slider; 411-wedge block; 412-composite screw rod; 413-incoming material guide plate.

[0068] 51-base plate; 52-head glue tape unwinding mechanism; 53-head glue preparation mechanism; 5301-head glue roller A; 5302-head glue roller B; 5303-head glue pulling roller; 5304-head glue sliding block; 5305-head glue pulling vertical guide rail for head glue; 5306-head glue preparation vertical cylinder; 54-head glue cutting mechanism; 5401-head glue lifting seat; 5402-clamping cylinder A; 5403-head glue cutting cylinder; 5404-head glue pressing block A for head glue; 5405-upper pressure plate A; 5406-head glue cutting knife; 5407-head glue vertical guide rail; 5408-head glue Glue lifting cylinder; 5409-head glue lifting cylinder; 55-head glue pulling mechanism; 5501-head glue transverse displacement seat; 5502-clamping cylinder B; 5503-head glue side push cylinder; 5504-head glue pressure block B; 5505-head glue upper pressure plate B; 5506-pressing cylinder; 5507-head glue pressure roller; 5508-head glue side plate; 5509-head glue transverse guide rail; 56-head glue mechanism; 5601-bracket; 5602-glue suction roller; 5603-servo motor; 5604-lifting cylinder; 5605-slider; 57-head glue transverse guide rail; 58-driving device.

[0069] 61-winding machine base; 62-winding turret; 6201-ring gear; 6202-winding turret motor; 6203-driving gear; 63-direct drive needle winding device; 6301-needle winding mechanism; 6302-spline shaft; 6303-spline motor; 6304-sliding block; 6305-linear bearing; 6306-winding guide shaft; 6307-winding push rod; 6308-spline outer cylinder; 6309-thimble; 6310-winding fixed seat; 6311-reset winding spring; 6312-first outer winding needle; 6313-first inner pressure needle; 6314-second inner Press needle; 6315-second outer winding needle; 6316-sliding block; 6317-winding spring; 6318-roller; 64-needle extraction and insertion mechanism; 6401-winding linear slide; 6402-mounting seat; 6403-needle extraction and insertion cylinder; 6404-sliding seat; 6405-shift rod; 65-needle offset mechanism; 6501-rotating clamping cylinder; 6502-swing arm; 6503-thimble; 66-front support mechanism; 6601-turntable; 6602-connecting shaft; 6603-winding front cylinder; 6604-winding pull rod; 6605-winding support block; 67-support foot. DETAILED DESCRIPTION

[0070] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0071] like Figure 1As shown, the lithium battery composite process winding machine includes a frame 100 and a pair of electrode unwinding mechanisms 101 arranged on both sides of the frame for releasing positive electrode sheets and negative electrode sheets. Each electrode unwinding mechanism has a diaphragm unwinding mechanism 102 for introducing a diaphragm. The electrode unwinding mechanism on one side is surface-glued by a corner gluing mechanism 103 and then bonded with the diaphragm derived from the diaphragm unwinding mechanism next to it, and then enters a composite mechanism 104 to be exported to form a blank A. The electrode unwinding mechanism on the other side is bonded with the diaphragm derived from the diaphragm unwinding mechanism next to it, and then enters a composite mechanism to be exported to form a blank B. Blanks A and B are synchronously output and wound on the winding head.

[0072] like Figures 2 to 8 As shown, the corner gluing device includes a conveying roller for inputting the electrode and a corner gluing mechanism located next to the conveying roller for outputting the tape and a pair of corner chasing structures for sticking the tape on the upper and lower surfaces of the electrode; in this embodiment, a pair of corner gluing mechanisms are provided on the upper and lower surfaces of the electrode.

[0073] In this embodiment, the corner glue preparation mechanism includes a corner glue preparation fixing plate 110 located next to the pole piece and fixed to the frame. A pair of corner glue disc mounting plates 120 are fixed on the glue preparation fixing plate, which are respectively arranged on the upper and lower parts of the pole piece for placing glue discs. Each corner glue disc mounting plate has a corner glue preparation roller 130 for winding the tape on its side. The discharge end of the corner capstan mounting plate is also provided with a cutter 140 for cutting the tape. The front side of the cutter has a glue pulling structure for clamping the end of the tape. The glue pulling structure includes a glue pulling pneumatic clamp 150, which is fixed on a glue pulling slider 151. The glue preparation fixing plate has an electric screw 152 that drives the glue pulling slider to move. The facing surfaces of the glue pneumatic clamp 150 have mutually intermeshing tooth surfaces 153.

[0074] In this embodiment, a cutter cylinder 141 is fixed to the adhesive mounting plate on the output side of the corner adhesive roller, positioned above and below the pole piece. The cutter 140 is fixed to the telescopic end of the cutter cylinder 141, with the cutting edge perpendicular to the output tape. In this embodiment, the cutter 140 is fixed to a curved connecting seat, with the telescopic end of the cutter cylinder 141 fixedly connected to the cutter via the curved connecting seat.

[0075] In this embodiment, there is a supporting plate 160 fixed on the glue preparation fixing plate for carrying the tape between the cutter and the corner glue preparation roller, and a corner tape pressing plate 161 is provided above the supporting plate. The corner tape pressing plate is driven by a pressing plate cylinder 162 fixed on the glue preparation fixing plate, and the supporting plate is located above the cutter.

[0076] In this embodiment, the chasing structure includes a chasing fixing plate 210 fixed on the frame next to the electrode, and the chasing fixing plate 210 is provided with a negative pressure adsorption plate 250 located above and below the electrode. Each negative pressure adsorption plate is driven by a horizontal driving device 260 to move along the electrode conveying direction, and the negative pressure adsorption plate is fixed on a chasing horizontal bracket 230 that can move longitudinally.

[0077] During operation, the wound tape is put onto the corner rubber disc mounting plate 120. The corner rubber disc mounting plate 120 is detachably connected with a baffle to prevent the tape from falling off. The tape is placed symmetrically above and below the pole piece. The end of the tape passes around the corner rubber roller 130, passes through the support plate and the cutter, and is clamped by the pneumatic glue clamp 150. The pneumatic glue clamp moves toward the pole piece under the drive of the electric screw 152, and the displacement distance of the pneumatic glue clamp meets the preset length.

[0078] At this time, the negative pressure adsorption plate 250 of the glue chasing mechanism adsorbs the tape, and then the corner tape pressing plate above the supporting plate presses the tape between the corner tape pressing plate and the supporting plate 160 under the drive of the pressing plate driving cylinder. Then the cutter cuts the tape on the upper part of the cutter cylinder, and the glue pulling pneumatic clamp 150 releases the tape and resets to a position close to the cutter for subsequent glue pulling.

[0079] The moving end of the horizontal driving device 260 is fixed with a chasing moving plate 220, and a pair of chasing vertical linear guide rails 221 are fixed on the chasing moving plate 220. The chasing horizontal bracket 230 has a vertical guide groove that slides with the chasing vertical linear guide rail. The chasing horizontal bracket is fixed with a convex shaft 231, and the convex shaft is limited in the track groove 241 of the chasing fixed plate.

[0080] A groove-shaped frame 240 is fixed on the chasing fixed plate, and a track groove 241 is located on the groove-shaped frame 240 facing the chasing horizontal bracket. The track groove includes a high position away from the pole piece and a low position close to the pole piece. In the process of the horizontal driving device driving the chasing horizontal bracket to move horizontally, the convex shaft moves in the track groove to realize the up and down movement of the chasing horizontal bracket on the chasing vertical linear guide rail.

[0081] The track groove 241 described in this embodiment has a middle portion at a low position close to the pole piece and two ends at high positions away from the pole piece.

[0082] The upper or lower negative pressure adsorption plates of the electrode piece are provided with a pair and are respectively fixed on the telescopic ends of different negative pressure adsorption cylinders 251 .

[0083] During operation, the negative pressure adsorption plate 250 has a negative pressure hole on its lower surface that connects to the negative pressure pump. This negative pressure absorbs the tape between the adhesive-pulling structure and the cutter. After the cutter cuts the tape, the transverse drive mechanism drives it in the direction of the electrode output, accelerating it in the same direction as the electrode moves. When the cam is at the lower position of the track groove 241, the negative pressure adsorption plates 250 above and below the electrode symmetrically press the tape onto the electrode. The negative pressure adsorption plate 250 then returns to its original position.

[0084] The negative pressure adsorption cylinder 251 can increase the pressing force or adjust the vertical height position of the negative pressure adsorption plate 250.

[0085] The transverse drive device 260 can be driven by an electric cylinder, pneumatic or hydraulic means. In this embodiment, the transverse drive device 260 uses an electric screw fixed on the tracking fixed plate 210, and drives the tracking movable plate 220 to move transversely through the telescopic end of the electric screw.

[0086] In this embodiment, the composite device of the pole piece includes a composite support seat 41 and a composite frame 42 installed on the composite support seat, wherein an upper composite roller 43 and a lower composite roller 44 are installed in the composite frame at upper and lower intervals, the lower composite roller is fixedly installed on the composite frame, and both ends of the upper composite roller are installed on the composite slider 410, and a slide groove for accommodating the composite slider is vertically opened on the composite frame, and a composite cylinder 48 is vertically installed on the bracket above the slide groove, and the end of the composite cylinder rod of the composite cylinder is connected to the composite slider, and a wedge adjustment mechanism for adjusting the gap between the upper composite roller and the lower composite roller is installed in the slide groove below the composite slider, and the composite slider is mounted on the wedge adjustment mechanism; one end of the upper composite roller and the lower composite roller are respectively installed with an upper gear 7 and a lower gear 6 that can mesh with each other for transmission, and one end of the lower composite roller is connected to the composite roller motor 45 for transmission.

[0087] In this embodiment, both ends of the lower composite roller are fixedly mounted on the composite frame via bearing seats, and the upper composite roller is fixedly mounted on the composite slider via bearing seats.

[0088] In this embodiment, the wedge adjustment mechanism includes a longitudinally placed composite screw 412, a wedge 411 installed on the composite screw and threadedly engaged therewith, the upper surface of the wedge and the lower surface of the composite slider are both inclined surfaces, the composite screw is rotatably connected to the composite frame, the rear end of the composite screw is passed through the composite frame, a handle is installed at the rear end of the composite screw, or the rear end of the composite screw is connected to the adjusting composite roller motor for transmission.

[0089] In this embodiment, the wedge block is mounted on the bearing seat of the lower composite roller.

[0090] In this embodiment, electric heaters are installed in the upper and lower composite rollers, and the electric heaters are turned on and off as needed to perform cold composite or hot composite.

[0091] In this embodiment, the gap between the upper composite roller and the lower composite roller forms a pole piece composite interval, and a material guide plate 413 is horizontally installed on the composite frame at the input side of the pole piece composite interval, and the input end of the material guide plate is tilted downward to form an input guide surface.

[0092] In this embodiment, the composite support seat and the composite roller motor are both installed on the frame.

[0093] When in use, first adjust the gap between the upper and lower composite rollers through the wedge adjustment mechanism according to the thickness of the incoming material; then, the incoming material passes through the incoming material guide plate and enters the space between the upper composite roller and the lower composite roller for composite. The upper and lower composite rollers are rotated by the composite roller motor and the upper and lower gears. During composite, the composite pressure is adjusted by the composite cylinder.

[0094] like Figure 10-13 As shown, a device for gluing a head of an electrode is provided, comprising, from left to right, a head gluing tape unwinding mechanism 52, a head gluing preparation mechanism 53, a head gluing cutting mechanism 54, and a head gluing pulling mechanism 55, which are sequentially installed on a substrate 1. A head gluing mechanism 56 is installed above the substrate between the head gluing cutting mechanism and the head gluing pulling mechanism.

[0095] The head glue application and preparation mechanism includes a head glue application roller A5301 and a head glue application roller B5302 which are arranged in sequence. A head glue application and drawing roller 5303 is provided between the head glue application roller A and the head glue application roller B. The head glue application and drawing roller is mounted on a head glue application sliding block 5304. A head glue application and drawing vertical guide rail 5305 is mounted on the base plate. The head glue application sliding block is slidably matched with the head glue application and drawing vertical guide rail. A head glue preparation vertical cylinder 5306 is mounted on the upper side or the lower side of the head glue application sliding block, and a slider is mounted on the cylinder end of the head glue preparation vertical cylinder.

[0096] The head glue cutting mechanism includes a head glue lifting seat 5401, a clamping cylinder A5402 and a head glue cutting cylinder 5403 which are sequentially installed on the head glue lifting seat from left to right. A head glue pressing block A5404 is installed at the end of the cylinder rod of the clamping cylinder A. An upper pressing plate A5405 is fixedly installed above the head glue pressing block A on the head glue lifting seat. A head glue cutting knife 5406 is installed at the end of the cylinder rod of the head glue cutting cylinder. A head glue lifting cylinder 5408 and a head glue vertical guide rail 5407 are installed on the base plate. The head glue lifting seat is slidably matched with the head glue vertical guide rail. The end of the cylinder rod of the head glue lifting cylinder is connected to the head glue lifting seat.

[0097] The head glue sticking and pulling mechanism includes a head glue sticking transverse displacement seat 5501, a clamping cylinder B5502 installed on the head glue sticking transverse displacement seat at an upper and lower interval, and a head glue sticking side pushing cylinder 5503. A head glue sticking pressure block B5504 is installed at the end of the cylinder rod of the clamping cylinder B. A head glue sticking upper pressing plate B5505 is fixedly installed above the head glue sticking pressure block B on the head glue sticking transverse displacement seat. A clamping cylinder 5506 is vertically installed at the cylinder end of the head glue sticking side pushing cylinder. A head glue sticking pressure roller 5507 is installed at the end of the cylinder rod of the clamping cylinder. A head glue sticking cross guide rail 57 is installed on the base plate. The head glue sticking transverse displacement seat and the head glue sticking cross guide rail are in sliding cooperation.

[0098] A driving device 58 is installed horizontally on the base plate to drive the head glue-applying transverse moving seat to move horizontally;

[0099] The head glue sticking mechanism includes a bracket 5601, a glue sucking roller 5602 installed horizontally on the bracket, a plurality of suction holes are opened on the glue sucking roller, a servo motor 5603 is installed on the bracket, and one end of the glue sucking roller is connected to the output shaft of the servo motor for transmission.

[0100] In this embodiment, the bracket is installed on the base plate via a lifting mechanism, which includes a vertical lifting cylinder 5604 and vertical guide rails symmetrically arranged on the left and right. A slider 5605 is provided on the vertical guide rail, and the slider is fixedly installed on the bracket.

[0101] In this embodiment, the driving device is a linear slide; or the driving device is a screw driven by a motor, a corresponding screw nut is installed on the screw, and the screw nut is fixedly installed on the head rubberized transverse seat.

[0102] In this embodiment, the head adhesive tape unwinding mechanism includes an unwinding shaft installed on a base plate and a material tray installed on the unwinding shaft for installing a tape roll. The material tray and the unwinding shaft are connected via a one-way damping rotation device to ensure one-way unwinding. When unwinding, the adhesive surface of the tape faces downward.

[0103] In this embodiment, the clamping cylinder is installed on the head rubber side plate 508, the head rubber side plate is installed on the cylinder end of the head rubber side push cylinder, and the head rubber transverse guide rail 509 is installed on the head rubber transverse displacement seat, and the head rubber side plate slides with the head rubber transverse guide rail.

[0104] In this embodiment, a head glue lifting cylinder 409 is installed on the base plate at the upper limit position of the head glue lifting seat.

[0105] When in use, the outer end of the tape is pressed by the head glue sticking and glue pressing block A and the upper head glue sticking and glue pressing block A of the head glue cutting mechanism, and the head glue preparation vertical cylinder of the head glue preparation mechanism drives the head glue sticking and glue pulling roller to pull the tape on the head glue tape unwinding mechanism. Then, the driving device drives the head glue sticking and glue pulling mechanism to move toward the head glue cutting mechanism. After moving into place, the head glue sticking and glue pulling mechanism's head glue sticking and glue pressing block B and the upper head glue sticking and glue pressing block B press the outer end of the tape, and the head glue sticking and glue pressing block A and the upper head glue sticking and glue pressing block A of the head glue cutting mechanism no longer press the tape. Then, the driving device drives the head glue sticking and glue pulling mechanism to move and reset, and pull the tape into place. When pulling it out, the tape drives the head glue sticking and glue pulling mechanism to move and reset, and pull the tape into place. The glue pulling roller is reset and pulled into place. After being pulled into place, the head glue pressing block A and the upper head glue pressing block A of the head glue cutting mechanism press the tape. Then, the head glue side pushing cylinder pushes the pressing cylinder into place. The pressing cylinder drives the head glue pressing roller to press the tape onto the glue suction roller of the head glue mechanism. The glue suction roller absorbs the tape. Then, the head glue cutting cylinder drives the head glue cutter to cut the tape. Then, the lifting cylinder drives the glue suction roller to rise into place, and the servo motor drives the glue suction roller to rotate so that the tape sticks to the head of the electrode. After pasting, the glue suction roller no longer absorbs the tape, and the lifting cylinder drives the head glue mechanism to descend and reset. The head glue side pushing cylinder drives the pressing cylinder to reset, waiting for the next glue application.

[0106] In the second embodiment, due to the different densities of glue sticking on different pole pieces, it is necessary to adjust the spacing between two adjacent negative pressure adsorption plates 250 during the gluing process to adjust the spacing of the glue sticking on the pole piece. In this embodiment, a distance-adjusting guide rail 1310 is fixed on the horizontal support for chasing, and a distance-adjusting slider 1320 is slidably fitted on the distance-adjusting guide rail. A pair of negative pressure adsorption plates are provided on the upper and lower parts of the pole piece, one of which is a negative pressure adsorption cylinder fixed on the chasing movable plate, and the other is fixed on the distance-adjusting slider. A distance-adjusting hole 1321 is provided above the distance-adjusting slider, and a distance-adjusting cylinder 1330 driven to move laterally by a distance-adjusting screw motor 1340 is provided on the chasing fixed plate. The telescopic end of the distance-adjusting cylinder 1330 has a distance-adjusting plug shaft 1322 that can be inserted into the distance-adjusting hole.

[0107] During operation, the distance-adjusting screw motor 1340 independently controls the movement of the distance-adjusting cylinder 1330. When the distance needs to be adjusted, the distance-adjusting plug shaft 1322 is inserted into the distance-adjusting hole 1321 under the drive of the distance-adjusting cylinder 1330. Then the distance-adjusting screw motor 1340 moves to adjust the movement of the distance-adjusting slider 1320 on the distance-adjusting guide rail and thus control the distance between the two adjacent negative pressure adsorption plates 250. The distance-adjusting action can be operated independently or before the operation of the horizontal drive device. The horizontal drive device operates after the distance adjustment is completed.

[0108] like Figures 14-18As shown, in the lithium battery composite process, the anode sheet and the diaphragm need to be sent to the composite device, and the composite device applies a certain pressure to the electrode sheet and the diaphragm to paste and composite them. After composite, they are sent to the winding device for winding. Because in the winding process of the lithium battery cell, the electrode sheet is cut after one cell is wound, and the next section of electrode sheet is fed into the composite station in preparation for the winding of the next cell. The feeding of the composite station is different from the traditional winding feeding. Therefore, how the electrode sheet is fed needs to be designed to be compatible with the composite device. On one side of the feeding end of the composite mechanism, there is a straight electrode sheet feeding mechanism for receiving the electrode sheet feeding. The straight electrode sheet feeding mechanism includes a clamping assembly 35 and a feeding cutting assembly 37 spaced apart on the left and right sides of the frame 100. The clamping assembly is installed on the frame via a first transverse mechanism 32, and the feeding cutting assembly is installed on the frame via a second transverse mechanism 3.

[0109] The pinching and conveying assembly includes a feed fixed frame A, a lifting frame A3505 installed at the lower end of the feed fixed frame A3504 and slidingly matched therewith, a feed conveying roller A3501 is installed in the feed fixed frame A, a feed conveying roller B3502 is provided below the feed conveying roller A, the feed conveying roller B is fixedly installed on the upper side of the lifting frame A, and a feed lifting cylinder A3503 for driving the lifting frame to lift is vertically installed in the middle of the bottom end of the feed fixed frame A, and a horizontal upper splint 3507 and a horizontal lower splint 3806 are provided at intervals on the upper and lower sides of the output side of the pinching and conveying assembly, and the horizontal upper splint and the horizontal lower splint are fixedly mounted on the feed fixed frame and the lifting frame respectively;

[0110] The feed cutting assembly includes an upper knife seat 3702, a cutting support plate 3703, and a lower fixed seat 3701 spaced apart from top to bottom. A feed movable cutter 3704 is provided on the output side of the cutting support plate. A fixed cutter is fixedly installed at the rear end of the upper knife seat, and a driving part is installed on the lower fixed seat to drive the fixed cutter to rise and fall to cut off the electrode.

[0111] In this embodiment, a feed guide rail 38 is installed horizontally on the frame; the first transverse movement mechanism includes a left movable seat 3201 and a clamping linear slide 3202 that drives the left movable seat to move horizontally, the clamping linear slide is fixedly installed on the frame, the left movable seat is fixedly installed on the sliding end of the clamping linear slide, and the left movable seat slides with the feed guide rail; the second transverse movement mechanism includes a feed transverse movement cylinder 3302 and a right movable seat 3301, the feed transverse movement cylinder is fixedly installed on the frame, the end of the cylinder rod of the feed transverse movement cylinder is connected to the right movable seat, and the right movable seat slides with the feed guide rail.

[0112] In this embodiment, the upper end of the left movable seat is equipped with a feed base 39, and the lower end of the feed base is equipped with a correction component 34 and a clamping component in sequence along the conveying direction. The feed fixed frame A is fixedly installed on the feed base, and the correction component includes a feed fixed frame B3402, a lifting frame B3403 installed at the lower end of the feed fixed frame B and slidingly matched with it, a feed conveying roller C3405 is installed in the feed fixed frame B, and a feed conveying roller C3405 is provided below the feed conveying roller C. D3406, the feed conveying roller D is fixedly installed on the upper side of the lifting frame B, and a feed lifting cylinder B3404 is vertically installed in the middle of the bottom end of the feed fixed frame B to drive the lifting frame to lift. The lower end of the feed base is longitudinally installed with a feed correction feed guide rail 3407, which is slidably matched with the feed correction feed guide rail on the feed fixed frame B. A correction linear slide 3401 is longitudinally installed on the upper end of the feed base, and the feed fixed frame B is fixedly connected to the sliding end of the correction linear slide.

[0113] In this embodiment, the driving member includes a longitudinal cutting linear slide 3707, an upper driving rod 3710, and a lower driving rod 3711. The cutting linear slide is fixedly installed on the lower fixed seat, and a driving block 3708 is installed on the movable end of the cutting linear slide. Two arc-shaped driving grooves 3709 are symmetrically arranged on the upper and lower sides of the driving block. A guide pin that slides with the arc-shaped driving groove is provided in the arc-shaped driving groove. The upper and lower guide pins are respectively connected and fixed with the upper driving rod and the lower driving rod; a lifting knife seat 3705 is provided under the cutting support plate, and the feeding movable cutter is fixed. It is fixedly installed at the rear end of the lifting knife seat, the upper end of the upper driving rod is connected and fixed to the lifting knife seat, and a linkage plate 3712 is arranged under the lower fixed seat. The lower end of the lower driving rod is connected and fixed to the linkage plate, and the outer guide rods 3706 that pass through the fixed seat are vertically installed at both ends of the linkage plate. The upper end of the outer guide rod is connected and fixed to the upper knife seat, and the inner feed guide rods 3713 that pass through the fixed seat are vertically provided on both sides of the lower end of the lifting knife seat. Two vertical feed guide rods 3714 are symmetrically installed on the left and right sides of the lower side of the cutting support plate, and a spring 3715 is vertically installed between the cutting support plate and the lifting knife seat.

[0114] In this embodiment, an upper dust extraction longitudinal pipe 39 and a lower dust extraction longitudinal pipe 311 are respectively provided above and below the output side of the cutting support plate. Both the upper dust extraction longitudinal pipe and the lower dust extraction longitudinal pipe are provided with dust extraction holes. The upper dust extraction longitudinal pipe is connected and fixed to the upper knife seat, and the lower dust extraction longitudinal pipe is connected and fixed to the lifting knife seat.

[0115] In this embodiment, a cavity is provided in the cutting support plate, a dust extraction hole communicating with the cavity is provided on the upper surface of the cutting support plate, and an extraction hole communicating with the cavity is provided on the side surface of the cutting support plate.

[0116] In this embodiment, a detection component 36 is installed on the lower fixed seat on the output side of the cutting support plate, and the detection component includes a feed frame 3601, and feed longitudinal screw rods 3602 are installed at upper and lower intervals in the feed frame, a knob is installed at one end of the feed longitudinal screw rod, and a nut 3603 that matches its thread is installed on the feed longitudinal screw rod, and a pole piece fixed edge plate 3604 and a detection mounting plate 3605 are installed at front and rear intervals on the input side of the feed frame, and the pole piece fixed edge plate and the detection mounting plate are respectively connected and fixed with the nuts on the two screw rods, and a detection laser sensor 606 is installed on the detection mounting plate, and a gap for the pole piece to pass through is opened on the pole piece fixed edge plate and the detection mounting plate.

[0117] In this embodiment, tab guide plates 607 are installed on both the upper and lower sides of the notch on the detection mounting plate.

[0118] When feeding, the deviation correction component first clamps the pole piece and conveys it. At the same time, it adjusts the longitudinal position of the pole piece to ensure that the pole piece passes through the conveying space between the horizontal upper clamp and the horizontal lower clamp accurately without deviation. After the pole piece head is conveyed to the outer end of the horizontal upper clamp and reaches the set distance (for example, the pole piece head is 35-40mm away from the outer end of the horizontal upper clamp), the clamping component clamps the pole piece; then, the first transverse mechanism conveys the pole piece straight to the feeding cutting component, and the pole piece head enters the composite device; then, the clamping component and the deviation correction component no longer clamp the pole piece, and the first transverse mechanism moves the clamping component and the deviation correction component horizontally to reset; then, the feeding cutting component cuts off the pole piece, thus completing one pole piece feeding. The above device can ensure straight feeding, which is convenient for adapting to the composite device, and performs deviation correction to ensure alignment during the procedure output process.

[0119] In this embodiment, the winding head adopts a direct-drive three-needle winding head device, including a winding turret 62 mounted on a winding machine base 61, the winding turret is rotatably connected to the winding machine base, and three direct-drive needle winding devices 63 are evenly distributed along the circumference of the axis of the brick tower. The three direct-drive needle winding devices respectively perform the cyclic actions of battery cell winding, battery cell gluing, and unloading needle pulling;

[0120] The direct-drive needle winding device includes a needle winding mechanism 6301, a sliding block 6304, a spline shaft 6302, and a spline motor 6303, which are arranged in sequence from front to back. The spline motor is a through-type motor, which is fixedly mounted on the winding turret and sleeved on the rear end of the spline shaft. The spline motor is directly connected to the spline shaft via a spline outer cylinder 6308. The needle winding mechanism is fixedly mounted on the front end of the spline shaft, and the middle part of the sliding block is sleeved on the front end of the spline shaft. The sliding block is fixedly mounted on the spline shaft via a bearing seat. This structure realizes a direct connection between the needle winding and the spline motor, solving the problems of the complex multi-stage transmission mechanism of the winding head of the existing winding machine, low transmission accuracy, slow response speed, and difficulty in installation and maintenance.

[0121] The spline motor is wired via conductive slip rings;

[0122] Two needle pulling and inserting mechanisms 64 are installed at intervals above and below the winding machine base, and the needle pulling and inserting mechanisms include a winding linear slide 6401 arranged along the axial direction, and a mounting seat 6402 installed at the movable end of the winding linear slide. A sliding seat 6404 and a needle pulling and inserting cylinder 6403 are arranged on the mounting seat in sequence from the inside to the outside in the radial direction. The sliding seat slides with the mounting seat via a radial guide rail, and the outer end of the sliding seat is connected to the end of the cylinder rod of the needle pulling and inserting cylinder. A shifting rod 6405 that can move the sliding block is installed at the inner end of the sliding seat; the needle pulling and inserting mechanism on the upper side is used to push the needle winding mechanism of the direct-drive needle winding device moved to this position to move forward for needle insertion; the needle pulling and inserting mechanism on the lower side is used to push the needle winding mechanism of the direct-drive needle winding device moved to this position to move backward for needle extraction.

[0123] In this embodiment, a coaxial ring gear 6201 is installed on the rear end of the winding turret, a winding turret motor 6202 is installed on the winding machine base, and a driving gear 6203 meshing with the ring gear is installed on the output shaft of the winding turret motor.

[0124] In this embodiment, linear bearings 6305 are axially installed at both ends of the sliding block, and a winding guide shaft 6306 is passed through the linear bearings. The winding guide shaft is fixedly installed in the winding turret.

[0125] In this embodiment, the needle winding mechanism includes a needle winding seat, a needle winding assembly, and a needle winding tail seat. The needle winding assembly is inserted into the needle winding seat and the needle winding tail seat respectively. The needle winding assembly includes a first outer winding needle 6312 and a second outer winding needle 6315. The first outer winding needle and the second outer winding needle are placed 180° on the same circumference. A first inner pressure needle 6313 is provided in the first outer winding needle, and a second inner pressure needle 6314 is provided in the second outer winding needle. The needle winding tail seat includes a winding fixed seat 6310, which is fixedly connected to the front end of the spline shaft. A sliding block 6316 that can slide is provided in the winding fixed seat. The first outer winding needle and the second inner pressure needle are both fixed to the winding fixed seat, and the first inner pressure needle and the second outer winding needle are both fixed to the sliding block. A driving member for controlling the sliding of the sliding block is provided in the winding fixed seat.

[0126] In this embodiment, the driving member is a pin 6309, which is slidably installed inside the winding fixed seat. The sliding block is provided with a roller 6318 that contacts the pin. The winding fixed seat is also provided with at least one winding spring that resets the sliding block after the pin is disengaged from the roller. The forward and backward movement of the pin can drive the first inner pressure pin and the second outer winding pin to approach or move away from the first outer winding pin and the second inner pressure pin to clamp or loosen the substrate passing between the first inner pressure pin and the second inner pressure pin.

[0127] In this embodiment, a conical surface cooperating with the roller is provided on the front end of the ejector pin.

[0128] In this embodiment, a winding push rod 6307 is axially penetrated in the spline shaft, and a thimble is fixedly installed at the front end of the winding push rod. A staggered needle mechanism 65 is provided on the rear side of the winding push rod to drive the winding push rod to clamp or loosen the winding needle assembly. The staggered needle mechanism includes a bracket fixedly installed at the rear end of the spline motor, a rotary clamping cylinder 6501 installed on the bracket, a swing arm 6502 installed at the end of the cylinder rod of the rotary clamping cylinder, and a thimble 6503 installed at the end of the swing arm to push the winding push rod. The thimble is located at the rear side of the winding push rod, and a reset winding spring 6311 is provided at the rear end of the winding push rod. The front and rear ends of the reset winding spring respectively abut the spline shaft and the winding push rod.

[0129] In this embodiment, a front support mechanism 66 is installed on the winding machine base in front of the winding turret, and the front support mechanism includes a turntable 6601, which is fixedly connected to the winding turret via a connecting shaft 6602. The turntable, the connecting shaft, and the winding turret are coaxial, and three support components are evenly distributed on the circumference of the turntable. The support components are arranged in a one-to-one correspondence with the direct-drive winding needle device. The support components include a winding front cylinder 6603, a winding pull rod 6604, and a winding support block 6605 connected in sequence from front to back. The winding pull rod is mounted on the turntable and slides with it. The winding support block can be mounted on the front end of the winding needle mechanism to support the winding needle mechanism.

[0130] In this embodiment, a height-adjustable support foot 67 is installed at the lower end of the winding machine base, so that the device has a height fine-tuning function, which facilitates the installation precision adjustment of the winding head. The height-adjustable support foot adopts the existing well-known height-adjustable support foot.

[0131] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0132] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the present invention to express positional relationships or shapes include states or shapes that are approximate, similar, or close thereto.

[0133] Any component provided by the present invention may be assembled from multiple separate components, or may be a separate component manufactured by an integral molding process.

[0134] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention. They should all be included in the scope of the technical solution for protection of the present invention.

Claims

1. Lithium battery composite process winding machine, characterized in that, It includes a frame and a pair of electrode unwinding mechanisms arranged on both sides of the frame for releasing positive electrode sheets and negative electrode sheets. A diaphragm unwinding mechanism is provided next to each electrode unwinding mechanism for introducing a diaphragm. The electrode unwinding mechanism on one side is surface-glued by a corner gluing mechanism, and then laminated with the diaphragm outputted by the diaphragm unwinding mechanism next to it, and then enters a composite mechanism for output to form a blank A. The electrode unwinding mechanism on the other side is laminated with the diaphragm outputted by the diaphragm unwinding mechanism next to it, and then enters a composite mechanism for output to form a blank B. Blanks A and B are synchronously output and wound on a winding head. The corner gluing mechanism includes a conveyor roller for inputting the electrode and a corner gluing mechanism located next to the conveyor roller for outputting the adhesive tape, and a pair of corner chasing structures for affixing the adhesive tape to the upper and lower surfaces of the electrode. The corner chasing structure includes a chasing fixing plate located next to the electrode, and the chasing fixing plate is provided with negative pressure adsorption plates located above and below the electrode that can adsorb the adhesive tape. Each negative pressure adsorption plate is driven by a transverse driving device to move along the electrode conveying direction, and the negative pressure adsorption plate is fixed to a chasing transverse bracket that can move longitudinally. The movable end of the horizontal driving device is fixed with a chasing moving plate, and the chasing moving plate is fixed with a pair of chasing vertical linear guide rails, and the chasing horizontal bracket is provided with a vertical guide groove that slides with the chasing vertical linear guide rail. The chasing horizontal bracket is fixed with a convex shaft, and the convex shaft is limited to be located in the track groove of the chasing fixed plate, and a groove-shaped frame is fixed on the chasing fixed plate, and the track groove is located on the groove-shaped frame facing the chasing horizontal bracket, and the track groove includes a high position away from the pole piece and a low position close to the pole piece. In the process of the horizontal driving device driving the chasing horizontal bracket to move horizontally, the convex shaft moves in the track groove to realize the chasing horizontal bracket to move up and down on the chasing vertical linear guide rail, and the negative pressure adsorption plate above or below the pole piece has a pair of And they are respectively fixed on the telescopic ends of different negative pressure adsorption cylinders, a negative pressure hole is provided under the negative pressure adsorption plate, the negative pressure hole of the negative pressure adsorption plate is connected with a negative pressure pump, a distance-adjusting guide rail is fixed on the chasing horizontal bracket, a distance-adjusting slider is slidably fitted on the distance-adjusting guide rail, and an adsorption plate cylinder is fixed to one end of the distance-adjusting slider and the chasing horizontal bracket along the longitudinal extension, and the negative pressure adsorption plate is provided with a pair at the upper and lower parts of the pole piece, one of the negative pressure adsorption cylinders is fixed to the chasing moving plate, and the other negative pressure adsorption cylinder is fixed to the distance-adjusting slider, and a distance-adjusting hole is provided above the distance-adjusting slider, a distance-adjusting cylinder which is driven to move laterally by a distance-adjusting screw motor is provided on the chasing fixed plate, and the telescopic end of the distance-adjusting cylinder has a distance-adjusting plug shaft which can extend into the distance-adjusting hole; The corner glue preparation mechanism includes a corner glue preparation fixing plate located beside the pole piece, and a pair of corner glue disc mounting plates are fixed on the glue preparation fixing plate, which are respectively arranged on the upper and lower parts of the pole piece for placing the glue disc. A corner glue preparation roller is provided on the side of each corner glue disc mounting plate for winding the tape. The discharge end of the corner capstan mounting plate is also provided with a cutter that is driven up and down by a cutter cylinder fixed by the glue preparation fixing plate. The front side of the cutter is provided with a glue pulling pneumatic clamp, and the glue pulling pneumatic clamp is fixed on a glue pulling slider. The glue preparation fixing plate is provided with an electric screw that drives the glue pulling slider to move. A support plate fixed on the glue preparation fixing plate for carrying the tape is provided between the cutter and the corner glue preparation roller, and a corner tape pressing plate is provided above the supporting plate, and the corner tape pressing plate is driven by a pressing plate cylinder fixed on the glue preparation fixing plate.

2. The lithium battery composite process winding machine according to claim 1, characterized in that: The composite mechanism includes a composite support seat, a composite frame installed on the composite support seat, an upper composite roller and a lower composite roller are installed at intervals in the upper and lower parts of the composite frame, the lower composite roller is fixedly installed on the composite frame, both ends of the upper composite roller are installed on the composite slider, a slide groove for accommodating the composite slider is vertically opened on the composite frame, a composite cylinder is vertically installed on the bracket above the slide groove, the end of the composite cylinder rod of the composite cylinder is connected to the composite slider, a wedge adjustment mechanism for adjusting the gap between the upper composite roller and the lower composite roller is installed below the composite slider in the slide groove, and the composite slider is mounted on the wedge adjustment mechanism; one end of the upper composite roller and the lower composite roller are respectively installed with an upper gear and a lower gear that can mesh with each other for transmission, one end of the lower composite roller is connected to the composite roller motor for transmission, and both ends of the lower composite roller are warp shafts The bearing seat is fixedly mounted on the composite frame, and the upper composite roller is fixedly mounted on the composite slider via the bearing seat. The wedge adjustment mechanism includes a longitudinal composite screw rod, a wedge mounted on the composite screw rod and threadedly matched therewith, the upper surface of the wedge block and the lower surface of the composite slider are both inclined surfaces, the composite screw rod is rotatably connected to the composite frame, the rear end of the composite screw rod is passed through the composite frame, a handle is installed at the rear end of the composite screw rod, or the rear end of the composite screw rod is connected to the motor for adjusting the composite roller for transmission, the wedge block is mounted on the bearing seat of the lower composite roller, and electric heaters are installed in the upper and lower composite rollers. The gap between the upper and lower composite rollers forms a pole piece composite interval, and an incoming material guide plate is horizontally installed on the composite frame at the input side of the pole piece composite interval, and the input end of the incoming material guide plate is tilted downward to form an input guide surface.

3. The lithium battery composite process winding machine according to claim 2, characterized in that: The output end of the blank A is provided with a pole piece head gluing device, and the pole piece head gluing device includes a head gluing tape unwinding mechanism, a head gluing preparation mechanism, a head gluing cutting mechanism, and a head gluing pulling mechanism which are sequentially installed on the substrate from left to right, and a head gluing mechanism is installed above the substrate between the head gluing cutting mechanism and the head gluing pulling mechanism; the head gluing preparation mechanism includes a head gluing roller A and a head gluing roller B which are sequentially arranged, a head gluing pulling roller is provided between the head gluing roller A and the head gluing roller B, the head gluing pulling roller is installed on a head gluing sliding block, a head gluing pulling head gluing vertical guide rail is installed on the substrate, the head gluing sliding block slides with the head gluing pulling head gluing vertical guide rail, a head gluing vertical cylinder is installed on the upper or lower side of the head gluing sliding block, and the slider is installed on the cylinder end of the head gluing vertical cylinder; The head glue cutting mechanism includes a head glue lifting seat, a clamping cylinder A and a head glue cutting cylinder which are sequentially installed on the head glue lifting seat from left to right. The end of the cylinder rod of the clamping cylinder A is installed with a head glue pressing block A. An upper pressing plate A is fixedly installed on the head glue lifting seat above the head glue pressing block A. A head glue cutting knife is installed at the end of the cylinder rod of the head glue cutting cylinder. The head glue lifting cylinder and the head glue vertical guide rail are installed on the base plate. The head glue lifting seat is slidably matched with the head glue vertical guide rail. The end of the cylinder rod of the head glue lifting cylinder is connected to the head glue lifting seat. The head glue sticking and pulling mechanism includes a head glue sticking transverse displacement seat, a clamping cylinder B installed on the head glue sticking transverse displacement seat at intervals up and down, and a head glue sticking side pushing cylinder. A head glue sticking pressure block B is installed at the end of the cylinder rod of the clamping cylinder B. A head glue sticking upper pressing plate B is fixedly installed on the head glue sticking transverse displacement seat above the head glue sticking pressure block B. A pressing cylinder is vertically installed at the cylinder end of the head glue sticking side pushing cylinder. A head glue sticking pressure roller is installed at the end of the cylinder rod of the pressing cylinder. A head glue sticking transverse guide rail is installed on the base plate. The head glue sticking transverse displacement seat and the head glue sticking transverse guide rail are slidably matched. A driving device for driving the head glue-applying transverse shifting seat to move transversely is installed transversely on the base plate; The head glue sticking mechanism includes a bracket, a horizontal glue sucking roller installed on the bracket, a plurality of suction holes are opened on the glue sucking roller, a servo motor is installed on the bracket, and one end of the glue sucking roller is connected to the output shaft of the servo motor for transmission.

4. The lithium battery composite process winding machine according to claim 1, characterized in that: On one side of the feeding end of the composite mechanism, there is a straight feeding mechanism for receiving the electrode feeding, which includes a pinching assembly and a feeding cutting assembly spaced apart on the left and right sides of the frame. The pinching assembly is installed on the frame via a first transverse mechanism, and the feeding cutting assembly is installed on the frame via a second transverse mechanism. The pinching and conveying assembly includes a feed fixed frame A, a lifting frame A installed at the lower end of the feed fixed frame A and slidingly matched therewith, a feed conveying roller A is installed in the feed fixed frame A, a feed conveying roller B is provided below the feed conveying roller A, the feed conveying roller B is fixedly installed on the upper side of the lifting frame A, and a feed lifting cylinder A for driving the lifting frame to lift is vertically installed in the middle of the bottom end of the feed fixed frame A. A horizontal upper splint and a horizontal lower splint are provided at intervals on the upper and lower sides of the output side of the pinching and conveying assembly, and the horizontal upper splint and the horizontal lower splint are fixedly installed on the feed fixed frame and the lifting frame respectively; The feeding cutting assembly includes an upper knife seat, a cutting support plate, and a lower fixed seat which are spaced apart from top to bottom. A movable feeding cutter is provided on the output side of the cutting support plate. A fixed cutter is fixedly installed at the rear end of the upper knife seat. A driving member for driving the fixed cutter to rise and fall to cut off the electrode is installed on the lower fixed seat.

5. The lithium battery composite process winding machine according to claim 4, characterized in that: A feed guide rail is installed laterally on the frame; the first transverse movement mechanism includes a left movable seat and a pinching linear slide that drives the left movable seat to move laterally, the pinching linear slide is fixedly mounted on the frame, the left movable seat is fixedly mounted on the sliding end of the pinching linear slide, and the left movable seat is slidably matched with the feed guide rail; the second transverse movement mechanism includes a feed transverse movement cylinder and a right movable seat, the feed transverse movement cylinder is fixedly mounted on the frame, the end of the cylinder rod of the feed transverse movement cylinder is connected to the right movable seat, and the right movable seat is slidably matched with the feed guide rail; A feed base is installed on the upper end of the left movable seat, and a correction component and a clamping component are installed in sequence on the lower end of the feed base along the conveying direction. The feed fixed frame A is fixedly installed on the feed base, and the correction component includes a feed fixed frame B, and a lifting frame B installed at the lower end of the feed fixed frame B and slidingly matched with it. A feed conveying roller C is installed in the feed fixed frame B, and a feed conveying roller D is arranged below the feed conveying roller C. The feed conveying roller D is fixedly installed on the upper side of the lifting frame B, and a feed lifting cylinder B for driving the lifting frame to lift is vertically installed in the middle of the bottom end of the feed fixed frame B. A feed correction feed guide rail is installed longitudinally on the lower end of the feed base, and the feed fixed frame B slides with the feed correction feed guide rail. A correction linear slide is installed longitudinally on the upper end of the feed base, and the feed fixed frame B is fixedly connected to the sliding end of the correction linear slide.

6. The lithium battery composite process winding machine according to claim 1, characterized in that: The winding head comprises a direct-drive three-needle winding head device, characterized in that it comprises a winding turret mounted on a winding machine base, the winding turret being rotatably connected to the winding machine base, and three direct-drive needle winding devices being evenly distributed along the circumference of the axis of the brick turret; The direct-drive needle winding device includes a needle winding mechanism, a sliding block, a spline shaft, and a spline motor, which are arranged in sequence from front to back. The spline motor is a through-type motor, which is fixedly mounted on the winding turret, the spline motor is sleeved on the rear end of the spline shaft, and the spline motor is directly connected to the spline shaft via a spline outer cylinder. The needle winding mechanism is fixedly mounted on the front end of the spline shaft, the middle part of the sliding block is sleeved on the front end of the spline shaft, and the sliding block is fixedly mounted on the spline shaft via a bearing seat. Two needle-pulling and -pulling mechanisms are installed at intervals above and below the winding machine base. The needle-pulling and -pulling mechanisms include a winding linear slide arranged along the axial direction and a mounting base installed at the movable end of the winding linear slide. A sliding seat and a needle-pulling and -pulling cylinder are sequentially arranged on the mounting base in the radial direction from the inside to the outside. The sliding seat is slidably matched with the mounting seat via a radial guide rail. The outer end of the sliding seat is connected to the end of the cylinder rod of the needle-pulling and -pulling cylinder. A shifting rod capable of shifting the sliding block is installed at the inner end of the sliding seat. A ring gear coaxial with the winding turret is installed on the rear end of the winding turret, a winding turret motor is installed on the winding machine base, and a driving gear meshing with the ring gear is installed on the output shaft of the winding turret motor; Both ends of the sliding block are axially mounted with linear bearings, a winding guide shaft is passed through the linear bearings, and the winding guide shaft is fixedly mounted in the winding turret; The needle winding mechanism includes a needle winding seat, a needle winding assembly, and a needle winding tail seat. The needle winding assembly is respectively inserted into the needle winding seat and the needle winding tail seat. The needle winding assembly includes a first outer winding needle and a second outer winding needle. The first outer winding needle and the second outer winding needle are placed 180° on the same circumference. A first inner pressure needle is provided in the first outer winding needle, and a second inner pressure needle is provided in the second outer winding needle. The needle winding tail seat includes a winding fixed seat, which is fixedly connected to the front end of the spline shaft. A sliding block that can slide is provided in the winding fixed seat. The first outer winding needle and the second inner pressure needle are both fixed to the winding fixed seat. The first inner pressure needle and the second outer winding needle are both fixed to the sliding block. A driving member for controlling the sliding of the sliding block is provided in the winding fixed seat.

7. A lithium battery composite process winding method, characterized in that: The lithium battery composite process winding machine according to claim 4 is characterized in that it includes the following steps: (1) The pole piece is released from the two pole piece unwinding mechanisms. The pole piece released by one of the pole piece unwinding mechanisms passes through the corner gluing mechanism. The corner gluing mechanism puts the wound tape onto the corner glue disc mounting plate and places the tape symmetrically above and below the pole piece. The end of the tape passes around the corner glue roller and then passes through the support plate and the cutter and is clamped by the pneumatic glue clamp. The pneumatic glue clamp moves toward the pole piece under the drive of the electric lead screw. The pneumatic glue clamp pulls out a displacement distance that meets the preset length. (2) The lower surface of the negative pressure adsorption plate has a negative pressure hole connected to the negative pressure pump. The negative pressure can adsorb the tape between the glue pulling structure and the cutter. After the cutter cuts the tape, the pitch adjustment screw motor controls the movement of the pitch adjustment cylinder alone. When the pitch adjustment is required, the pitch adjustment plug shaft is inserted into the pitch adjustment hole under the drive of the pitch adjustment cylinder. Then the pitch adjustment screw motor moves to adjust the movement of the pitch adjustment slider on the pitch adjustment guide rail, thereby controlling the distance between two adjacent negative pressure adsorption plates. (3) After the distance adjustment is completed, the transverse drive device drives the pole piece to move in the output direction, and accelerates and follows the pole piece in the same direction while the pole piece moves. When the cam is at the low position of the track groove, the negative pressure adsorption plates above and below the pole piece are symmetrically pressed to stick the tape to the pole piece, and then the negative pressure adsorption plates are reset; (4) The electrode with glue on the corner is output through the electrode straight feeding mechanism, and the electrode released from the electrode unwinding mechanism on the other side is directly output through the electrode straight feeding mechanism. When the electrode straight feeding mechanism feeds, the correction component first clamps the column to convey the electrode, and at the same time, adjusts the longitudinal position of the electrode to ensure that the electrode accurately passes through the conveying space between the horizontal upper clamping plate and the horizontal lower clamping plate without deviation. After the head of the electrode is conveyed to the outer end of the horizontal upper clamping plate and reaches the set distance, the clamping component clamps the electrode; then, the first transverse mechanism sends the electrode straight to the feeding cutting component, and the head end of the electrode enters the composite device; then, the clamping component and the correction component no longer clamp the electrode, and the first transverse mechanism moves the clamping component and the correction component horizontally to reset; then, the feeding cutting component cuts off the electrode, thereby completing one electrode feeding; (5) The electrode flat feeding mechanism on both sides feeds the diaphragm released by the diaphragm unwinding mechanism and combines them to form blanks A and B respectively through a composite mechanism; (6) The output end of blank A is provided with a pole piece head gluing device, and after passing through the pole piece head gluing device, it is output and wound on the winding head together with blank B.

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