Pole piece waste outer side single winding mechanism and double-core winding machine

Abstract

The utility model discloses a pole piece waste outer side single winding mechanism and a double-core winding machine, the pole piece waste outer side single winding mechanism comprises a waste pulling assembly, a rotating assembly, a pulling needle penetrating assembly, a translation assembly and a winding needle assembly, the waste pulling assembly is connected with a panel, and the waste pulling assembly and the winding needle assembly are movably in butt joint to a discharging station located on the transverse outer side of the panel; the needle penetrating and pulling assembly is arranged on the rotating assembly connected with the panel, the translation assembly is arranged on the needle penetrating and pulling assembly and is in transmission connection with the winding needle assembly, and after the waste pulling assembly drives a waste pulling needle to penetrate into the winding needle assembly located at the discharging station, the waste pulling needle is driven to pull away a waste battery cell from the winding needle assembly; the winding needle assembly is driven by the rotating assembly to rotate between a discharging station and a to-be-rotated station; the winding needle assembly is driven by the needle penetrating and pulling assembly to move in the axial direction of the waste winding needle so as to enable the waste winding needle to penetrate and pull, and the winding needle assembly is driven by the translation assembly to translate so as to enable the tape walking path of the pole piece of the waste battery cell to remain unchanged.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery manufacturing, in particular to a single winding mechanism for the outer side of pole piece waste and a double-core winding machine. Background Art

[0002] With the development of the lithium battery industry, the various components of winding equipment have matured, and the speed of each step of the lithium battery winding equipment has reached its limit. Traditional winding equipment is no longer sufficient to meet the demand for high-efficiency lithium battery winding. In related technologies, dual-core winding equipment has been proposed. This means that corresponding winding mechanisms are installed on the inner and outer sides of the corresponding winding equipment, so that the battery cells can be wound simultaneously on the inner and outer sides, improving the winding efficiency of lithium battery winding equipment. In the related art, if the electrode material roll has defective incoming materials, the electrode with defective incoming materials needs to be wound into scrap battery cells to remove the defective materials. However, in the related art, the lithium battery winding equipment only has a single electrode waste single-winding mechanism. When it is necessary to wind the electrode or diaphragm with defective incoming materials, the inner and outer electrode sheets or diaphragms are transported to the corresponding electrode waste single-winding mechanism for scrap battery cell winding. This will reduce the scrap battery cell winding efficiency of the entire winding equipment. At the same time, in the dual-core winding process, the synchronously conveyed electrode sheets or diaphragms are not all defective incoming materials. When the inner and outer electrode sheets or diaphragms are wound into scrap battery cells, some normal electrode sheets or diaphragms will be wasted, increasing production costs.

[0003] Currently, no effective solution has been proposed for the problems of low scrap battery cell winding efficiency and large material waste in the dual-core winding equipment with single-side scrap winding in the related art. Utility Model Content

[0004] In view of this, it is necessary to provide a single-side winding mechanism for pole piece waste and a dual-core winding machine to at least solve the problems of low waste battery cell winding efficiency and large material waste in the dual-core winding equipment with single-side waste winding in the related art.

[0005] In the first aspect, the utility model provides a technical solution as follows: a single-winding mechanism for the outer side of the pole piece waste is installed on the panel of the double-core winding machine, including a waste pulling component, a rotating component, a threading needle component, a translation component and a winding needle component. The waste pulling component is connected to the panel and is movably docked with the winding needle component at the unloading station located on the lateral outside of the panel. The threading needle component is arranged on the rotating component connected to the panel, and the translation component is arranged on the threading needle component and is transmission-connected to the winding needle component, wherein the waste pulling component is used to drive the waste pulling needle to penetrate into the winding needle component transmitted to the unloading station by the rotating component, the threading needle component and the translation component, and then drive the waste pulling needle to pull the waste battery cell from the winding needle component to the position located at the The material receiving box is located on the longitudinal rear side of the panel; the rotating assembly is used to drive the threading needle assembly, the translation assembly and the winding needle assembly to rotate, so that the winding needle assembly rotates between the unloading station and the waiting position; the threading needle assembly is used to drive the translation assembly and the winding needle assembly to move along the axial direction of the waste winding needle of the winding needle assembly, so as to drive the waste winding needle to translate to the winding station for threading, and drive the winding needle assembly to carry the wound waste battery cell back to the waiting position; the translation assembly is used to drive the winding needle assembly to translate when the winding needle assembly is winding the waste battery cell, so that the waste winding needle clamping the electrode of the waste battery cell is on a preset tape path; the winding needle assembly is used to drive the waste winding needle to thread and wind the waste battery cell.

[0006] In one embodiment, the waste pulling assembly also includes a mounting bracket arranged perpendicular to the panel, the mounting bracket is provided with a first linear guide rail extending in the longitudinal direction of the mounting bracket, the first linear guide rail is provided with a slide, the slide is provided with a needle transmission unit arranged perpendicular to the slide, the waste pulling needle is provided at the other end of the needle transmission unit away from the connection with the slide, and the slide is also connected to the pulling drive unit arranged on the mounting bracket, wherein the needle transmission unit is used to drive the waste pulling needle to move toward the winding needle assembly located at the unloading station and thread the needle, and after the waste pulling needle pulls the waste battery cell from the winding needle assembly, drive the waste pulling needle to pull the needle relative to the winding needle assembly; the pulling drive unit is used to drive the slide to drive the needle transmission unit and the waste pulling needle to slide along the first linear guide rail, and drive the waste pulling needle to pull the waste battery cell.

[0007] In one embodiment, the needle threading transmission unit includes a first ball screw, a needle threading cylinder, a needle pulling seat and a connecting rod. Two first ball screws arranged perpendicular to the slide are spaced apart in the longitudinal direction of the slide. The needle pulling seat and the connecting rod are respectively arranged at the two ends of the axial direction of the first ball screw and are connected to the screw rod of the first ball screw. The needle pulling seat is also connected to the needle threading cylinder provided on the slide, wherein the needle threading cylinder is used to drive the screw rod of the first ball screw to extend and retract through the needle pulling seat, and drive the needle pulling seat to drive the waste needle pulling toward or away from the needle winding assembly located at the unloading station; and / or, the material pulling drive unit includes one of the following: a cylinder, a linear motor.

[0008] In one embodiment, the rotating assembly includes a rotating seat, a rotating shaft, a transmission unit and a rotating drive unit. The rotating shaft is arranged perpendicular to the panel and is connected to the rotating drive unit through the transmission unit. The rotating shaft is also connected to the rotating seat. The translation assembly is arranged on the rotating seat, wherein the rotating drive unit is used to drive the rotating shaft to rotate through the transmission unit so that the rotating shaft drives the rotating seat to rotate; the rotating seat is used to drive the translation assembly and the winding needle assembly to rotate between the unloading station and the position to be translated while following the rotation of the rotating shaft.

[0009] In one embodiment, the rotation drive unit includes a drive motor, and the transmission unit includes a driving tooth and a transmission tooth, the driving tooth is provided on the output shaft of the rotation drive unit, and the transmission tooth is provided on the rotating shaft and is meshed with the driving tooth, wherein the rotation drive unit is used to drive the transmission tooth to rotate through the driving tooth to drive the rotating shaft to rotate.

[0010] In one embodiment, the threading and pulling needle assembly includes a second linear guide rail arranged along the length direction of the rotating seat, and two movable plates are provided on the second linear guide rails arranged at intervals in the width direction of the rotating seat. The translation assembly is arranged on the movable plate, and the movable plate is also connected to the ball screw module arranged on the rotating seat, wherein the ball screw module is used to drive the movable plate to drive the translation assembly and the winding needle assembly to slide along the second linear guide rail, so as to drive the translation assembly and the winding needle assembly to move along the axial direction of the waste winding needle of the winding needle assembly, and to drive the waste winding needle to translate to the winding station for threading and drive the winding needle assembly to carry the wound waste battery cell back to the waiting position.

[0011] In one embodiment, the translation assembly includes a mounting base plate provided on the movable plate, and two third linear guide rails extending along the length direction of the mounting base plate are spaced apart in the width direction of the mounting base plate, and a sliding plate is provided across the two third linear guide rails, and the winding needle assembly is provided on the sliding plate, and the sliding plate is also connected to a follower motor provided on the mounting base plate through a second ball screw provided between the two third linear guide rails, wherein the follower motor is used to drive the sliding plate through the second ball screw to drive the winding needle assembly to slide along the third linear guide rail, so that the waste winding needle clamping the pole piece of the waste battery cell is on a preset tape path.

[0012] In one embodiment, the winding needle assembly further includes a support seat, a winding drive unit and a pressing unit, the support seat is fixedly connected to the sliding plate, the waste winding needle is vertically mounted on the vertical plate of the support seat through a bearing, one axial end of the waste winding needle is connected to the transmission wheel of the winding drive unit after passing through the vertical plate and extending out, the transmission wheel is connected to the driving wheel of the winding drive unit through a synchronous belt, the driving wheel is connected to the output shaft of the driving motor of the winding drive unit, the pressing unit is arranged beside the waste winding needle and is connected to the support seat, The core pressing sheet of the pressing unit is also opposite to the waste winding needle in the setting position, wherein the driving motor is used to drive the waste winding needle to rotate to a position matching the waste electrode needle through the driving wheel, the synchronous belt and the transmission wheel, and after the waste winding needle completes the waste electrode needle threading and clamps the waste electrode, drive the waste winding needle to rotate so that the waste winding needle can wind the waste battery cell; the pressing unit is used to drive the core pressing sheet to press the waste battery cell during the process of the waste winding needle winding the waste battery cell, so that the waste battery cell will not be loosened during the winding process.

[0013] In one embodiment, the sheet pressing unit further includes a bearing seat fixedly mounted on the bottom plate of the support seat, a guide rod movably provided on the bearing seat, a dust collecting box being provided at one axial end of the guide rod, one side edge of the roll core press sheet being hinged to the dust collecting box, the other side of the roll core press sheet being provided with a spring connected to the dust collecting box, and the dust collecting box being further transmission-connected to a driving cylinder provided on the bearing seat, wherein the driving cylinder is used to drive the dust collecting box to drive the guide rod to slide relative to the bearing seat, so that the dust collecting box carries the roll core press sheet to move relative to the waste winding needle; the spring is used to provide an elastic force to the roll core press sheet to press the waste battery cell when the waste winding needle is winding the waste battery cell;

[0014] The core pressing sheet is used to pivot relative to the dust collecting box when the waste winding needle is winding the waste battery core, and to press the waste battery core based on the elastic force provided by the spring.

[0015] In a second aspect, an embodiment of the present application provides a dual-core winding machine, comprising an outer single-winding mechanism, which is the outer single-winding mechanism for pole piece waste described in the first aspect.

[0016] Compared with the related art, the single-winding mechanism for the outer side of the pole piece waste and the double-core winding machine provided in the embodiment of the present application adopt the arrangement of a waste pulling component, a rotating component, a threading and pulling needle component, a translation component and a winding needle component, and the waste pulling component and the winding needle component are arranged to be movably connected to the unloading station on the horizontal outer side of the panel, the threading and pulling needle component is arranged on the rotating component, the translation component is arranged on the threading and pulling needle component, and the winding needle component is connected by transmission, and the waste pulling needle is driven by the waste pulling component to penetrate into the winding needle component transmitted to the unloading station by the rotating component, the threading and pulling needle component and the translation component, and then the waste pulling needle is driven to pull the waste battery cell from the winding needle component to the receiving box located on the longitudinal rear side of the panel; the rotating component is used The parts drive the threading and pulling needle assembly, the translation assembly and the winding needle assembly to rotate, so that the winding needle assembly rotates between the unloading station and the waiting position; the threading and pulling needle assembly also drives the translation assembly and the winding needle assembly to move along the axial direction of the waste winding needle of the winding needle assembly, so that the waste winding needle can thread and pull the needle; at the same time, the translation assembly drives the winding needle assembly to move horizontally, and thus in the process of the waste winding needle winding the waste battery cell, the tape path of the electrode of the waste battery cell remains unchanged, which solves the problems of low winding efficiency and large material waste of the waste battery cell of the dual-core winding equipment with single-side waste winding, and realizes the beneficial effects of separating the single-roll defective electrode from the inside and outside, improving the winding efficiency of the dual-core winding equipment, and reducing material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a three-dimensional structure of a single winding mechanism for the outer side of a pole piece waste according to an embodiment of the present application;

[0018] Figure 2 for Figure 1 A side view corresponding to the schematic diagram of the three-dimensional structure shown;

[0019] Figure 3 Another three-dimensional structural diagram of the outer single winding mechanism of the pole piece waste in the embodiment of the present application

[0020] Figure 4 for Figure 3 A side view corresponding to the schematic diagram of the three-dimensional structure shown;

[0021] Figure 5 This is a schematic diagram of a single-roll workstation according to an embodiment of the present application;

[0022] Figure 6 This is a front view of the assembly of the waste pulling component, waste winding needle and material receiving box according to an embodiment of the present application;

[0023] Figure 7 A three-dimensional structural diagram of a waste extraction assembly according to an embodiment of the present application;

[0024] Figure 8 This is a three-dimensional structural diagram of the winding needle assembly according to an embodiment of the present application;

[0025] Figure 9 This is a three-dimensional structural diagram of the tablet pressing unit of an embodiment of the present application.

[0026] Reference numerals:

[0027] 001, unloading station; 002, waiting for indexing; 003, winding station; 004, scrap battery cells

[0028] 100, scrap material extraction assembly; 11, scrap material extraction needle; 12, mounting frame; 13, first linear guide rail; 14, slide plate; 15, needle threading transmission unit; 16, material extraction drive unit; 151, first ball screw; 152, needle threading cylinder; 153, needle extraction seat; 154, connecting rod;

[0029] 200, rotating assembly; 21, rotating seat; 22, rotating shaft; 23, transmission unit; 24, rotating drive unit; 231, driving gear; 232, transmission gear;

[0030] 300, needle insertion and extraction assembly; 31, second linear guide rail; 32, movable plate;

[0031] 400, translation assembly; 41, mounting base; 42, third linear guide rail; 43, sliding plate; 44, second ball screw; 45, follower motor;

[0032] 500, winding needle assembly; 51, waste winding needle; 52, support base; 53, winding drive unit; 54, sheet pressing unit; 521, vertical plate; 522, bottom plate; 531, transmission wheel; 532, timing belt; 533, driving wheel; 534, driving motor; 541, core sheet pressing; 542, bearing seat; 543, guide rod; 544, dust collecting box; 545, driving cylinder;

[0033] 600, material receiving box;

[0034] 700. Guide groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] It should be noted that when a component is referred to as being "mounted on" another component, it may be mounted directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] See also Figures 1 to 9 The outer single winding mechanism of the pole piece waste of the embodiment of the present application is installed on the panel of the double-core winding machine, and includes a waste pulling component 100, a rotating component 200, a needle pulling component 300, a translation component 400 and a winding needle component 500. The waste pulling component 100 is connected to the panel and is movably docked with the winding needle component 500 at the unloading station on the lateral outer side of the panel. The needle pulling component 300 is arranged on the rotating component 200 connected to the panel, and the translation component 400 is arranged on the needle pulling component 300 and is transmission-connected with the winding needle component 500.

[0039] The waste pulling component 100 is used to drive the waste pulling needle 11 to penetrate the winding needle component 500 transmitted to the unloading station by the rotating component 200, the pulling needle component 300 and the translation component 400, and then drive the waste pulling needle 11 to pull the waste battery cell 004 out of the winding needle component 500 to the receiving box 600 located on the longitudinal rear side of the panel.

[0040] In this embodiment, after the winding needle assembly 500 completes the winding of the waste battery cell, the translation assembly 400 drives the winding needle assembly 500 back to the waiting position 002. Thereafter, the rotation assembly 200 drives the needle assembly 300, the translation assembly 400 and the winding needle assembly 500 from the waiting position 002 (refer to Figure 3 and Figure 4 As shown) turn to unloading station 001 (refer to Figure 1 and Figure 2As shown), at this time, the waste pulling component 100 will drive its waste pulling needle 11 to penetrate the waste winding needle 51 along the radial direction of the waste winding needle 51 of the winding needle component 500. It can be understood that when the waste pulling needle 11 penetrates the waste winding needle 51 abnormally, the winding component 500 will drive the waste winding needle 51 to adapt and rotate, thereby allowing the waste pulling needle 11 to successfully complete the needle insertion; after the waste pulling needle 11 completes the needle insertion, the waste pulling component 100 will drive the waste pulling needle 11 to move along the axial direction of the waste winding needle 51, thereby pulling the waste battery cell 004 out of the waste winding needle 51 (reference Figure 6 As shown); in this embodiment, after the waste battery cell 004 is pulled out from the waste winding needle 51, it will fall into the guide groove 700 connected to the receiving box 600 located on the longitudinal rear side of the panel, and the waste battery cell 004 is introduced into the receiving box 600 through the guide groove 700.

[0041] The rotating assembly 200 is used to drive the needle insertion and extraction assembly 300, the translation assembly 400 and the needle winding assembly 500 to rotate, so that the needle winding assembly 500 rotates between the blanking station 001 and the waiting position 002.

[0042] The threading and pulling needle assembly 300 is used to drive the translation assembly 400 and the winding needle assembly 500 to move along the axial direction of the waste winding needle 51 of the winding needle assembly 500, so as to drive the waste winding needle 51 to move horizontally to the winding station 003 for threading, and to drive the winding needle assembly 500 to carry the finished wound waste battery cell 004 back to the waiting position 002.

[0043] In this embodiment, before threading, the waste winding needle 51 is located at the waiting position 002 away from the threading position. When it is determined that the waste battery cell 004 needs to be wound, the threading needle assembly 300 will move along the axial direction of the waste winding needle 51 through the transmission translation assembly 400 and the winding needle assembly 500 (waste pulling assembly 100), thereby moving the waste winding needle 51 to the winding station 003. After the waste winding needle 51 completes the winding of the waste battery cell 004, the threading needle assembly 300 will drive the waste winding needle 51 to pull out the needle and return to the waiting position 002, so that when the rotating assembly 200 rotates the threading needle assembly 300, the translation assembly 400 and the winding needle assembly 500 to the unloading station 001, the waste winding needle 51 is in a position adapted to the waste pulling needle 11 for unloading and threading.

[0044] The translation assembly 400 is used to drive the winding needle assembly 500 to translate when the winding needle assembly 500 is winding the scrap battery cell 004, so that the scrap winding needle 51 clamps the pole piece of the scrap battery cell on the preset tape path.

[0045] In this embodiment, after the scrap battery cell 004 is wound, the translation assembly 400 drives the winding assembly 500 to carry the scrap battery cell 004 for translation adjustment and return to the position where the scrap winding needle 51 is threading the needle.

[0046] The winding needle assembly 500 is used to drive the scrap winding needle 51 to thread the needle and wind the scrap battery cell 004.

[0047] In the above-mentioned single-winding mechanism for the outer side of the electrode waste, the waste pulling component 100 and the winding needle component 500 are set to be movably connected to the unloading station 001 on the horizontal outside of the panel (not shown in the drawings, it can also be defined as a large plate of a dual-core winding machine), the threading needle component 300 is set on the rotating component 200, and the translation component 400 is set on the threading needle component 300, and the winding needle component 500 is connected by transmission. After the waste pulling needle 11 is driven by the waste pulling component 100 to penetrate into the winding needle component 500 transmitted to the unloading station 001 by the rotating component 200, the threading needle component 300 and the translation component 400, the waste pulling needle 11 is driven to pull the waste battery cell from the winding needle component 500 to the receiving box 600 located on the longitudinal rear side of the panel; the threading needle component 300, The translation assembly 400 and the winding needle assembly 500 rotate so that the winding needle assembly 500 rotates between the unloading station 001 and the waiting position 002; the translation assembly 400 and the winding needle assembly 500 are also driven by the threading and pulling needle assembly 300 to move along the axial direction of the waste winding needle 51 of the winding needle assembly 500, so that the waste winding needle 51 can thread and pull the needle; at the same time, the winding needle assembly 500 is driven to translate by the translation assembly 400, and then in the process of the waste winding needle 51 winding the waste battery cell 004, the tape path of the electrode of the waste battery cell 004 remains unchanged, which solves the problems of low waste battery cell winding efficiency and large material waste of the dual-core winding equipment with single-side waste winding, and realizes the beneficial effects of separating the single-roll defective electrode on the inside and outside, improving the winding efficiency of the dual-core winding equipment, and reducing material waste.

[0048] In this embodiment, the working process of the single winding mechanism is as follows: initially, the rotating assembly 200, the threading needle assembly 300, the translation assembly 400 and the winding needle assembly 500 are in the unloading station 001, and the waste pulling needle 11 is in a state of being separated from the waste winding needle 51, but the waste winding needle 51 is in the unloading threading needle position. After starting to wind the waste battery cell 004, the rotating assembly 200 drives the threading needle assembly 300, the translation assembly 400 and the winding needle assembly 500 to rotate from the unloading station 001 to the waiting position 001. 02, then, the threading needle assembly 300 drives the winding needle assembly 500 to move through the transmission translation assembly 400, so that the waste winding needle 51 is at the winding station 003, and the waste winding needle 51 is threading at the winding station 003. At the same time, the winding needle assembly 500 will drive the waste winding needle 51 to rotate so that the angle of the waste winding needle 51 reaches the threading position; after the waste winding needle 51 meets the threading requirements, the waste winding needle 51 will clamp the defective electrode and then wind the waste battery cell 004. During the winding process In the process, the translation component 400 will drive the winding component 500 to drive the waste winding needle 51 to translate, so that the path of the electrode of the waste battery cell 004 remains unchanged; after the waste battery cell 004 is wound and the electrode is cut, the threading needle component 300 drives the translation component 400 to drive the winding needle component 500 to move, so that the waste winding needle 51 is in the waiting position 002; after that, the rotating component 200 drives the threading needle component 300, the translation component 400 and the winding needle component 500 to rotate from the waiting position 002 to the unloading position Position 003, at the same time, the winding needle assembly 500 drives the waste winding needle 51 to rotate, so that the angle of the waste winding needle 51 is adjusted to the position suitable for the waste pulling needle 11 to insert and pull out the needle; at this time, the waste pulling assembly 100 drives the waste pulling needle 11 to move toward the waste winding needle 51 and insert the needle, and after inserting the needle, drives the waste pulling needle 11 to move along the axial direction of the waste winding needle 51 to pull the waste battery cell 004 from the waste winding needle 51 to the guide groove 700, and the guide groove 700 guides the waste battery cell 004 into the material receiving box 600.

[0049] In order to realize the extraction of the waste battery cell 004, in some embodiments, reference is made to Figures 1 to 7 The waste pulling assembly 100 also includes a mounting frame 12 arranged vertically on the panel, a first linear guide rail 13 extending in the longitudinal direction of the mounting frame 12 is provided on the mounting frame 12, a slide 14 is provided on the first linear guide rail 13, a needle transmission unit 15 arranged perpendicular to the slide 14 is provided on the slide 14, the waste pulling needle 11 is provided at the other end of the needle transmission unit 15 away from the connection with the slide 14, and the slide 14 is also in transmission connection with the pulling drive unit 16 arranged on the mounting frame 12, wherein,

[0050] The needle threading transmission unit 15 is used to drive the waste pulling needle 11 to move toward the winding needle assembly 500 located at the unloading station and thread the needle, and after the waste pulling needle 11 pulls the waste battery cell 004 off the winding needle assembly 500, drive the waste pulling needle 11 to pull the needle relative to the winding needle assembly 500 (corresponding to moving along the axial direction of the waste winding needle 51).

[0051] In some optional embodiments, the needle threading transmission unit 15 includes a first ball screw 151, a needle threading cylinder 152, a needle pulling seat 153 and a connecting rod 154. Two first ball screws 151 arranged perpendicular to the slide 14 are arranged at intervals in the longitudinal direction of the slide 14. The needle pulling seat 153 and the connecting rod 154 are respectively arranged at the two ends of the axial direction of the first ball screw 151 and are connected to the screw rod of the first ball screw 151. The needle pulling seat 153 is also connected to the needle threading cylinder 152 provided on the slide 14.

[0052] The needle threading cylinder 152 is used to drive the extension and retraction of the screw of the first ball screw 151 through the needle pulling seat 153, and drive the needle pulling seat 153 to drive the waste needle pulling needle 11 toward or away from the needle winding assembly 500 located at the unloading station.

[0053] In this embodiment, the piston shaft of the needle threading cylinder 152 is connected to the needle pulling seat 153, and the needle threading cylinder 152 is fixed on the slide 14. When the piston shaft of the needle threading cylinder 152 is extended, it will push the needle pulling seat 153 to move away from the slide 14. At the same time, because the screw rod of the first ball screw 151 is telescopically movable relative to the slide 14, and the connecting rod 154 connects the two screw rods, it ensures that the two screw rods move synchronously when the needle pulling seat 153 moves away from the slide 14, thereby realizing that the needle threading cylinder 152 drives the needle pulling seat 153 to drive the waste needle pulling 11 toward or away from the needle winding assembly 500.

[0054] The material pulling drive unit 16 is used to drive the slide plate 14 to drive the needle transmission unit 15 and the waste material pulling needle 11 to slide along the first linear guide rail 13 and drive the waste material pulling needle 11 to pull out the waste battery cell.

[0055] In some optional embodiments, the drawing drive unit 16 includes one of the following: a cylinder, a linear motor.

[0056] In order to realize the blanking of waste battery cells 004 outside the panel, in some embodiments, reference is made to Figures 1 to 9 The rotating assembly 200 includes a rotating base 21, a rotating shaft 22, a transmission unit 23 and a rotating drive unit 24. The rotating shaft 22 is arranged vertically on the panel and is connected to the rotating drive unit 24 through the transmission unit 23. The rotating shaft 22 is also connected to the rotating base 21. The translation assembly 400 is arranged on the rotating base 21.

[0057] The rotation driving unit 24 is used to drive the rotating shaft 22 to rotate through the transmission unit 23 , so that the rotating shaft 22 drives the rotating base 21 to rotate.

[0058] In some optional embodiments, the rotation drive unit 24 includes a drive motor, and the transmission unit 23 includes a driving tooth 231 and a transmission tooth 232. The driving tooth 231 is provided on the output shaft of the rotation drive unit 24, and the transmission tooth 232 is provided on the rotating shaft 22 and is meshed with the driving tooth 231. The rotation drive unit 24 is used to drive the transmission tooth 232 meshed with it to rotate through the driving tooth 231 to drive the rotating shaft 22 to rotate.

[0059] The rotating seat 21 is used to drive the translation assembly 400 and the needle winding assembly 500 to rotate between the unloading station and the waiting position during the process of following the rotation of the rotating shaft 22.

[0060] It can be understood that with such an arrangement, the needle insertion and extraction assembly 300, the translation assembly 400 and the winding needle assembly 500 are rotated to the outside of the feeding section (corresponding to the unloading station 001) through the rotating assembly 200 to avoid blocking the feeding section assembly debugging and the electrode threading.

[0061] In order to realize that the waste winding needle 51 can be used for electrode threading, in some embodiments, reference is made to Figures 1 to 9 The threading and pulling needle assembly 300 includes a second linear guide rail 31 arranged along the length direction of the rotating seat 21, and two second linear guide rails 31 arranged at intervals in the width direction of the rotating seat 21 are provided with a movable plate 32, and the translation assembly 400 is arranged on the movable plate 32, and the movable plate 32 is also connected to the ball screw module arranged on the rotating seat 21 for transmission, wherein the ball screw module is used to drive the movable plate 32 to drive the translation assembly 400 and the winding needle assembly 500 to slide along the second linear guide rail 31, so as to drive the translation assembly 400 and the winding needle assembly 500 to move along the axial direction of the waste winding needle 51 of the winding needle assembly 500, and to drive the waste winding needle 51 to translate to the winding station for threading and drive the winding needle assembly 500 to carry the wound waste battery cell back to the position to be transferred.

[0062] In order to make the scrap winding needle 51 keep the electrode threading and tape walking path unchanged during the process of winding the scrap battery cell 004, in some embodiments, reference is made to Figures 1 to 9The translation assembly 400 includes a mounting base 41 provided on the movable plate 32, and two third linear guide rails 42 extending along its length direction are spaced apart in the width direction of the mounting base 41, and a sliding plate 43 is provided across the two third linear guide rails 42, and the winding needle assembly 500 is provided on the sliding plate 43, and the sliding plate 43 is also connected to the follower motor 45 provided on the mounting base 41 through a second ball screw 44 provided between the two third linear guide rails 42, wherein the follower motor 45 is used to drive the sliding plate 43 through the second ball screw 44 to drive the winding needle assembly 500 to slide along the third linear guide rail 42, so that the waste winding needle 51 clamps the pole piece of the waste battery cell 004 on the preset tape path.

[0063] It can be understood that with such a setting, the sliding plate 43 is driven by the follower motor 45 to drive the winding needle assembly 500 to slide along the third linear guide rail 42, thereby moving the waste winding needle 51 in the horizontal radial direction, so that the head of the corresponding pole piece is always in the set position, thereby ensuring that the tape path of the corresponding pole piece remains unchanged.

[0064] It should be noted that in the process of the scrap winding needle 51 winding the scrap battery cell 004, because the scrap winding needle 51 rotates, the position of the scrap winding needle 51 pulling the pole piece (the contact point between the pole piece and the outer side of the circumference of the scrap winding needle 51) moves back and forth along the horizontal radial direction of the scrap winding needle 51 as the scrap winding needle 51 rotates. In order to ensure that the path of the pole piece does not change, it is necessary to drive the winding needle assembly 500 to translate through the translation assembly 400, so as to ensure that the position of the pole piece pulled by the scrap winding needle 51 remains unchanged, so that the path of the pole piece also remains unchanged.

[0065] In order to achieve the waste winding needle 51 to thread the needle and wind the waste battery cell 004, in some embodiments, reference is made to Figures 1 to 9 The winding needle assembly 500 also includes a support seat 52, a winding drive unit 53 and a pressing unit 54. The support seat 52 is fixedly connected to the sliding plate 43. The waste winding needle 51 is vertically installed on the vertical plate 521 of the support seat 52 through a bearing 55. One axial end of the waste winding needle 51 passes through the vertical plate 521 and extends out to be connected to the transmission wheel 531 of the winding drive unit 53. The transmission wheel 531 is connected to the driving wheel 533 of the winding drive unit 53 through a synchronous belt 532. The driving wheel 533 is connected to the output shaft of the driving motor 534 of the winding drive unit 53. The pressing unit 54 is arranged on the side of the waste winding needle 51 and is connected to the support seat 52. The core pressing piece 541 of the pressing unit 54 is also opposite to the waste winding needle 51 in the setting position.

[0066] The driving motor 534 is used to drive the scrap winding needle 51 to rotate to a position matching the scrap electrode threading through the driving wheel 533, the synchronous belt 532 and the transmission wheel 531, and after the scrap winding needle 51 completes the scrap electrode threading and clamps the scrap electrode, drive the scrap winding needle 51 to rotate so that the scrap winding needle 51 can wind the scrap battery cell.

[0067] In this embodiment, during the threading process of the waste pulling needle 11, the driving motor 534 will also drive the waste winding needle 51 to rotate so that the angle of the waste winding needle 51 is adapted to the threading of the waste pulling needle 11, that is, the waste pulling needle 11 can be vertically inserted into the waste winding needle 51, and then the waste battery cell 004 is pulled out.

[0068] The pressing unit 54 is used to drive the core pressing sheet 541 to press the scrap battery cell 004 when the scrap battery cell 004 is wound by the scrap winding needle 51, so as to prevent the scrap battery cell 004 from becoming loose during the winding process.

[0069] It can be understood that with such a setting, the waste winding needle 51 is driven to rotate by the driving motor 534, so that the waste winding needle 51 adapts to the waste pulling needle 11 for threading and adapts to the waste winding needle 51 for threading the waste electrode. The waste winding needle 51 is also driven to rotate by the driving motor 534 to realize the winding of the waste battery cell 004; at the same time, flexible pressure is applied by the pressing unit 54 to keep the electrode from being scattered during the winding process of the waste battery cell 004, and rotate and move synchronously with the winding needle assembly 500 to prevent the waste battery cell 004 from causing loose material during the movement process, affecting the unloading of the waste battery cell 004.

[0070] In order to prevent the waste battery cells 001 from being loosened during the winding and unloading process, in some embodiments, reference is made to Figures 1 to 9 The pressing unit 54 also includes a bearing seat 542 fixed on the bottom plate 522 of the support seat 52, a guide rod 543 is movably provided on the bearing seat 542, and a dust collecting box 544 is provided at one axial end of the guide rod 543. One side of the core pressing piece 541 is hinged to the dust collecting box 544, and the other side of the core pressing piece 541 is provided with a spring connected to the dust collecting box 544. The dust collecting box 544 is also connected to the driving cylinder 545 provided on the bearing seat 542.

[0071] The driving cylinder 545 is used to drive the dust collecting box 544 to drive the guide rod 543 to slide relative to the bearing seat 542, so that the dust collecting box 544 carries the winding core pressing piece 541 to move toward the waste winding needle 51.

[0072] The spring is used to provide elastic force to the winding core pressing sheet 541 to press the scrap battery cell 004 when the scrap winding needle 51 is winding the scrap battery cell 004 .

[0073] The core pressing piece 541 is used to pivot relative to the dust collecting box 544 when the waste winding needle 51 is winding the waste battery core 004, and to press the waste battery core 004 based on the elastic force provided by the spring.

[0074] It should be noted that when the head of the electrode (waste) is wound into the waste battery cell 004, the dust collecting box 544 is driven to move to the position below the waste winding needle 51, and carries the core pressing piece 541 to press the waste battery cell 004. At this time, the core pressing piece 541 is pressed by the spring to maintain pressure on the core pressing piece 541, so that the waste battery cell 004 continues to be wound until the winding is completed; in this embodiment, the dust collecting box 544 rotates with the winding assembly 500 to prevent the waste battery cell 004 from losing powder during the transfer process; during the threading process of the waste winding needle 51, the dust collecting box 544 will be driven away from the waste winding needle 51 to avoid interference with the electrode during threading.

[0075] An embodiment of the present application further provides a dual-core winding machine, comprising an outer single-winding mechanism, which is the outer single-winding mechanism for pole piece waste in the above embodiment.

[0076] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments fall within the scope of protection claimed by the present invention.

Claims

1. The outer single winding mechanism of the pole piece waste is installed on the panel of the double-core winding machine, which is characterized by: The invention comprises a waste pulling component (100), a rotating component (200), a needle pulling component (300), a translation component (400) and a needle rolling component (500), wherein the waste pulling component (100) is connected to the panel and is movably docked with the needle rolling component (500) at a blanking station located on the transverse outer side of the panel, the needle pulling component (300) is arranged on the rotating component (200) connected to the panel, and the translation component (400) is arranged on the needle pulling component (300) and is transmission-connected with the needle rolling component (500), wherein: The waste pulling assembly (100) is used to drive the waste pulling needle (11) to penetrate the needle winding assembly (500) which is transmitted to the unloading station by the rotating assembly (200), the needle pulling assembly (300) and the translation assembly (400), and then drive the waste pulling needle (11) to pull the waste battery cell from the needle winding assembly (500) to the receiving box (600) located on the longitudinal rear side of the panel; The rotating assembly (200) is used to drive the needle insertion and extraction assembly (300), the translation assembly (400) and the needle winding assembly (500) to rotate, so that the needle winding assembly (500) rotates between the blanking station and the waiting position; The threading and pulling needle assembly (300) is used to drive the translation assembly (400) and the winding needle assembly (500) to move along the axial direction of the waste winding needle (51) of the winding needle assembly (500), so as to drive the waste winding needle (51) to move horizontally to the winding station for threading, and to drive the winding needle assembly (500) to carry the wound waste battery cell back to the waiting position; The translation assembly (400) is used to drive the winding needle assembly (500) to translate when the winding needle assembly (500) is winding the waste battery cell, so that the pole piece of the waste battery cell clamped by the waste winding needle (51) is located on a preset tape path; The winding needle assembly (500) is used to drive the scrap winding needle (51) to thread the needle and to wind the scrap battery cell.

2. The outer single winding mechanism for pole piece waste according to claim 1, characterized in that: The waste pulling assembly (100) further includes a mounting frame (12) arranged perpendicular to the panel, the mounting frame (12) is provided with a first linear guide rail (13) extending in the longitudinal direction of the mounting frame (12), the first linear guide rail (13) is provided with a slide plate (14), the slide plate (14) is provided with a needle transmission unit (15) arranged perpendicular to the slide plate (14), the waste pulling needle (11) is provided at the other end of the needle transmission unit (15) away from the connection with the slide plate (14), and the slide plate (14) is also in transmission connection with the pulling drive unit (16) arranged on the mounting frame (12), wherein, The needle threading transmission unit (15) is used to drive the waste pulling needle (11) to move toward the needle winding assembly (500) located at the unloading station and thread the needle, and after the waste pulling needle (11) pulls the waste battery cell off the needle winding assembly (500), drive the waste pulling needle (11) to pull the needle relative to the needle winding assembly (500); The material pulling drive unit (16) is used to drive the slide plate (14) to drive the needle transmission unit (15) and the waste material pulling needle (11) to slide along the first linear guide rail (13) and drive the waste material pulling needle (11) to pull out the waste battery cell.

3. The outer single winding mechanism for pole piece waste according to claim 2, characterized in that: The needle threading transmission unit (15) includes a first ball screw (151), a needle threading cylinder (152), a needle pulling seat (153) and a connecting rod (154), and two first ball screws (151) arranged perpendicular to the slide (14) are arranged at intervals in the longitudinal direction of the slide (14), and the needle pulling seat (153) and the connecting rod (154) are respectively arranged at the two ends of the axial direction of the first ball screw (151) and are connected to the screw of the first ball screw (151), and the needle pulling seat (153) is also connected to the needle threading cylinder (152) arranged on the slide (14) in a transmission manner, wherein the needle threading cylinder (152) is used to drive the screw of the first ball screw (151) to extend and retract through the needle pulling seat (153), and drive the needle pulling seat (153) to drive the waste needle pulling (11) toward or away from the needle winding assembly (500) located at the unloading station; and / or, The material pulling drive unit (16) comprises one of the following: a cylinder, a linear motor.

4. The outer single winding mechanism for pole piece waste according to claim 1, characterized in that: The rotating assembly (200) comprises a rotating seat (21), a rotating shaft (22), a transmission unit (23) and a rotating drive unit (24); the rotating shaft (22) is arranged perpendicular to the panel and is connected to the rotating drive unit (24) through the transmission unit (23); the rotating shaft (22) is also connected to the rotating seat (21); the translation assembly (400) is arranged on the rotating seat (21), wherein: The rotation drive unit (24) is used to drive the rotation shaft (22) to rotate via the transmission unit (23), so that the rotation shaft (22) drives the rotation seat (21) to rotate; The rotating seat (21) is used to drive the translation assembly (400) and the needle winding assembly (500) to rotate between the blanking station and the waiting position during the process of following the rotation of the rotating shaft (22).

5. The outer single winding mechanism for pole piece waste according to claim 4, characterized in that: The rotation drive unit (24) includes a drive motor, and the transmission unit (23) includes a driving tooth (231) and a transmission tooth (232), wherein the driving tooth (231) is provided on the output shaft of the rotation drive unit (24), and the transmission tooth (232) is provided on the rotating shaft (22) and meshedly connected with the driving tooth (231), wherein: The rotation drive unit (24) is used to drive the transmission teeth (232) to rotate via the driving teeth (231), thereby driving the rotation shaft (22) to rotate.

6. The outer single winding mechanism for pole piece waste according to claim 5, characterized in that: The needle insertion and extraction assembly (300) includes a second linear guide rail (31) arranged along the length direction of the rotating seat (21), and two movable plates (32) are provided on the second linear guide rails (31) spaced apart in the width direction of the rotating seat (21). The translation assembly (400) is provided on the movable plates (32), and the movable plates (32) are also connected to the ball screw module provided on the rotating seat (21). The ball screw module is used to transmit The movable plate (32) drives the translation assembly (400) and the winding needle assembly (500) to slide along the second linear guide rail (31), so as to drive the translation assembly (400) and the winding needle assembly (500) to move along the axial direction of the waste winding needle (51) of the winding needle assembly (500), and to drive the waste winding needle (51) to move horizontally to the winding station for needle threading and to drive the winding needle assembly (500) to carry the wound waste battery cell back to the waiting position.

7. The outer single winding mechanism for pole piece waste according to claim 6, characterized in that: The translation assembly (400) includes a mounting base (41) provided on the movable plate (32), two third linear guide rails (42) extending along the length direction of the mounting base (41) are spaced apart in the width direction, and a sliding plate (43) is provided across the two third linear guide rails (42), and the needle winding assembly (500) is provided on the sliding plate (43), and the sliding plate (43) is also connected to a follower motor (45) provided on the mounting base (41) through a second ball screw (44) provided between the two third linear guide rails (42), wherein the follower motor (45) is used to drive the sliding plate (43) through the second ball screw (44) to drive the needle winding assembly (500) to slide along the third linear guide rail (42), so that the waste winding needle (51) clamps the pole piece of the waste battery cell on a preset tape path.

8. The outer single winding mechanism for pole piece waste according to claim 7, characterized in that: The winding needle assembly (500) further includes a support seat (52), a winding drive unit (53) and a pressing unit (54), wherein the support seat (52) is fixedly connected to the sliding plate (43), and the waste winding needle (51) is vertically mounted on the vertical plate (521) of the support seat (52) through a bearing (55), and one axial end of the waste winding needle (51) is connected to the transmission wheel (531) of the winding drive unit (53) after passing through the vertical plate (521) and extending out. (531) is connected to the driving wheel (533) of the winding drive unit (53) through a synchronous belt (532), and the driving wheel (533) is connected to the output shaft of the driving motor (534) of the winding drive unit (53). The pressing unit (54) is arranged beside the waste winding needle (51) and is connected to the support seat (52). The core pressing sheet (541) of the pressing unit (54) is also opposite to the waste winding needle (51) in the setting position, wherein, The driving motor (534) is used to drive the scrap winding needle (51) to rotate to a position matching the scrap electrode threading position through the driving wheel (533), the synchronous belt (532) and the transmission wheel (531), and after the scrap winding needle (51) completes the scrap electrode threading and clamps the scrap electrode, drive the scrap winding needle (51) to rotate so that the scrap winding needle (51) can wind the scrap battery cell; The pressing unit (54) is used to drive the core pressing sheet (541) to press the waste battery core during the process of the waste winding needle (51) winding the waste battery core, so that the waste battery core does not become loose during the winding process.

9. The outer single winding mechanism for pole piece waste according to claim 8, characterized in that: The pressing unit (54) further includes a bearing seat (542) fixed on the bottom plate (522) of the support seat (52), a guide rod (543) is movably provided on the bearing seat (542), a dust collecting box (544) is provided at one axial end of the guide rod (543), one side of the winding core pressing sheet (541) is hinged to the dust collecting box (544), and the other side of the winding core pressing sheet (541) is provided with a spring connected to the dust collecting box (544), and the dust collecting box (544) is also transmission-connected to a driving cylinder (545) provided on the bearing seat (542), wherein: The driving cylinder (545) is used to drive the dust collecting box (544) to drive the guide rod (543) to slide relative to the bearing seat (542), so that the dust collecting box (544) carries the winding core pressing piece (541) to move relative to the waste winding needle (51); The spring is used to provide elastic force to the winding core pressing sheet (541) to press the waste battery core when the waste winding needle (51) is winding the waste battery core; The core pressing sheet (541) is used to pivot relative to the dust collecting box (544) during the process of the waste winding needle (51) winding the waste battery core, and to press the waste battery core based on the elastic force provided by the spring.

10. A double-core winding machine, characterized in that: It comprises an outer single-rolling mechanism, and the outer single-rolling mechanism comprises the outer single-rolling mechanism for pole piece waste according to any one of claims 1 to 9.

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