CN211700485U

CN211700485U - Square electric core positive plate outsourcing winding mechanism

Info

Publication number: CN211700485U
Application number: CN202020415372.1U
Authority: CN
Inventors: 卢雪军; 张新球; 童胜
Original assignee: Dongguan Anyang Intelligent Technology Co ltd
Current assignee: Dongguan Anyang Intelligent Technology Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-10-16
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a square electric core positive plate outsourcing winding mechanism and duplex position winder, this winding mechanism includes: the winding assembly comprises two plug-in winding needle units, the plug-in winding needle unit at the upper winding station can receive the diaphragm, the negative plate and the positive plate and rotate to the lower winding station for edge-covering winding of the positive plate after pre-winding and inserting plate winding are completed; the pole piece jacking assembly comprises a two-pole piece jacking device used for pressing the negative pole piece and the positive pole piece to the diaphragm; the diaphragm jacking assembly comprises two diaphragm jacking devices, and the diaphragms, the negative plates and the positive plates are tightly pressed in the processes of pre-coiling, inserting sheet coiling and rotating from the upper coiling station to the lower coiling station by the plug-in type coiling needle unit, and/or the two diaphragms are jacked to clamp the negative plates in the process of welding and cutting the diaphragms by the diaphragm welding assembly; the positive plate lifting assembly is used for lifting the positive plate to match with the positive plate edge; and the ending assembly is used for pressing the diaphragm in the diaphragm welding and cutting process and/or pressing the positive plate in the positive plate edge covering process.

Description

Square electric core positive plate outsourcing winding mechanism

Technical Field

The utility model belongs to the technical field of the battery equipment technique and specifically relates to a square electric core positive plate outsourcing winding mechanism.

Background

In the existing battery cell equipment, the winding-type battery cell is adopted by the majority of lithium battery manufacturing enterprises due to the advantages of stable battery performance, high manufacturing efficiency and the like in the battery cell, and the occupied proportion of the market is very high, so that the corresponding battery winding machine is also in high demand.

However, the winding machine in the winding machine for the square battery cell in the existing market has the disadvantages of large manufacturing difficulty of the square battery cell, high equipment cost and low yield due to the fact that the size of the square battery cell is smaller and the requirement on process precision is higher and higher. Meanwhile, the winding machine of the existing adaptation has the problems of complex structure, complex operation, unstable production of the battery cell and low yield.

Meanwhile, the battery cell winding and outsourcing process comprises the positive plate outsourcing and the diaphragm outsourcing, the positive plate outsourcing is realized by the small square winding battery cell, the space of a mechanism is compact, and the realization is difficult.

In the related art, a better technical solution for solving the above problems is still lacking.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a square electric core positive plate outsourcing winding mechanism to the problem among the above-mentioned prior art, solve the problem that the middle-size and small-size square electric core coiling equipment of correlation technique field receives the space influence to realize positive plate outsourcing coiling difficulty, realized that square little electric core positive plate outsourcing is convoluteed.

In a first aspect, the utility model adopts a technical proposal that the square battery cell positive plate outer wrapping winding mechanism comprises a winding component arranged on a panel, and a pole piece jacking component, a diaphragm welding and cutting component, a positive plate lifting component and a tail closing component which are arranged on the panel and are positioned at the circumferential outer side of the winding component, wherein,

the winding assembly comprises two plug-in winding needle units which can alternatively rotate between an upper winding station and a lower winding station, and the plug-in winding needle unit positioned at the upper winding station can receive the diaphragm, the negative plate and the positive plate at the upper winding station and rotate to the lower winding station for edge-covering winding and ending of the positive plate after pre-winding and inserting sheet winding are completed;

the pole piece jacking assembly comprises two pole piece jacking devices which are symmetrically arranged at two sides of the winding upper assistor and are used for matching with the winding upper assistor to press and stick the unwound negative pole piece and the unwound positive pole piece to the diaphragm and/or the traction inlet piece; the diaphragm jacking assembly comprises two diaphragm jacking devices which are symmetrically arranged, and the diaphragms, the negative plates and the positive plates are tightly pressed in the processes of pre-coiling, insert sheet coiling and rotating from an upper coiling station to a lower coiling station of the plug-in type coiling needle unit, and/or the two diaphragms are jacked to clamp the negative plates in the process of welding and cutting the diaphragms by the diaphragm welding and cutting assembly; the positive plate lifting assembly is used for lifting the positive plate and enabling the diaphragm welding and cutting assembly to weld and cut the two diaphragms; the ending component is used for pressing and holding the diaphragm in the diaphragm welding and cutting process and/or pressing and holding the positive plate in the positive plate edge covering process and matching with the plug-in winding needle unit to finish the edge covering and winding ending of the positive plate of the battery cell.

As a further elaboration of the above technical solution:

in the technical scheme, the two pluggable winding needle units are arranged on the revolution component, the revolution component comprises a base seat fixedly connected with the panel, a main shaft turntable is coaxially assembled on the base seat, the main shaft turntable rotates through meshing transmission of a transmission gear arranged at one axial end of the main shaft turntable and a driving gear arranged on a driving shaft of a speed reducer driven by a revolution motor, and the two pluggable winding needle units nested on the main shaft turntable are driven to alternately rotate between an upper winding station and a lower winding station; each plug-in type winding needle unit comprises a winding needle center shaft, a winding needle connected with the winding needle center shaft through a winding needle connector, and a winding needle core shaft movably penetrating through the winding needle center shaft and connected with an inserting sheet movably penetrating through the winding needle connector; the winding needle middle shaft is movably assembled on the main shaft turntable through a winding outer shaft matched with a shaft sleeve, a first transmission gear is arranged on the winding needle outer shaft and is meshed and connected with driven gears arranged on two coaxially arranged transmission shafts, the two transmission shafts are in transmission connection with a winding driving motor through synchronous belt transmission pairs, and the transmission shafts are driven to rotate by corresponding winding driving motors and drive two plug-in winding needle units to rotate relative to the main shaft turntable to complete the winding of a battery cell; a tail shaft wheel is further arranged at one axial end of each winding needle central shaft, which is far away from the winding needle connector, and a tail shaft shifting wheel is arranged at the end of the winding needle central shaft, which extends out of the winding needle central shaft and is provided with the tail shaft wheel; each plug-in winding needle unit is also butted with a drawing device arranged on the vertical panel, the drawing device comprises an installation plate arranged on the vertical panel, the mounting plate is provided with a linear guide rail, a needle-out shifting block and a shifting piece pulling block are movably arranged on the linear guide rail, the needle-out shifting block and the shifting piece pulling block are respectively in transmission connection with a driving cylinder fixedly arranged on the mounting plate through a connecting block and can slide along the linear guide rail through the transmission of a matched driving cylinder, the needle-out shifting block and the shifting piece pulling block are also movably butted with the shaft tail wheel and the shaft tail shifting wheel respectively at the arrangement positions, and the needle withdrawing and poking block drives the pluggable needle rolling unit to withdraw the needle or withdraw the needle in the sliding process along the linear guide rail, and/or the shifting sheet pulling block drives the inserting sheet to be parallel to the winding needle to insert/withdraw the wound battery cell in the sliding process of the shifting sheet pulling block along the linear guide rail.

In the technical scheme, the two pole piece jacking devices comprise a negative pole piece jacking device and a positive pole piece jacking device, the negative pole piece jacking device and the positive pole piece jacking device both comprise a sliding assembly seat arranged perpendicular to a panel, the sliding assembly seat is connected with a movable frame through a first linear guide rail arranged perpendicular to the sliding assembly seat, one end, matched with the moving direction of the movable frame, of the movable frame is provided with a pole piece compression roller through a compression roller seat, the compression roller seat of the positive pole piece jacking device is also connected with a piece entering guide block matched with the winding upper auxiliary device, and the movable frame is further in transmission connection with a first driving cylinder arranged on the sliding assembly seat; the first driving cylinder drives the moving frame to drive the pole piece pressing roller and/or the sheet feeding guide block to move along the first linear guide rail, and the unreeled negative pole sheet and the unreeled positive pole sheet are matched to be pressed on the diaphragm and/or pulled into the sheet.

In the technical scheme, each of the two diaphragm jacking devices comprises a first sliding group seat arranged perpendicular to the panel, the first sliding group seat is connected with a first moving frame through a second linear guide rail arranged perpendicular to the first sliding group seat, one end, matched with the moving direction of the first moving frame, of the first moving frame is provided with a diaphragm compression roller through a first compression roller seat, and the first moving frame is further in transmission connection with a second driving cylinder arranged on the first sliding group seat; and the second driving cylinder drives the first moving frame to drive the diaphragm pressing roller to move along the second linear guide rail, and the diaphragm, the negative plate and the positive plate are pressed and/or pressed to clamp the negative plate in a matching manner.

In the technical scheme, the diaphragm welding and cutting assembly comprises a cold and hot welding and cutting device and a welding and cutting auxiliary device which are symmetrically arranged, the cold and hot welding and cutting device and the welding and cutting auxiliary device both comprise a second sliding group seat which is arranged vertical to a panel, the second sliding group seat is connected with a welding and cutting frame through a third linear guide rail which is vertically arranged on the second sliding group seat, the welding and cutting frame of the cold and hot welding and cutting device is connected with a hot cutting welding knife through a heat insulation pad, the lower part of the hot cutting welding knife is also provided with a diaphragm cold cutting knife which is fixedly connected with the welding and cutting frame, the welding and cutting frame of the welding and cutting auxiliary device is fixedly connected with a welding and cutting cushion block which is arranged at the position and is just matched with the hot cutting knife and the diaphragm cold cutting knife, and the welding and cutting frame is also in transmission connection with a; and the third driving cylinder drives the welding and cutting frame to slide along a third linear guide rail, so that the hot cutting welding knife and the diaphragm cold cutting knife move in opposite directions with the welding and cutting cushion block, and the welding and cutting are performed on the diaphragm in a matching manner.

In the technical scheme, the positive plate lifting assembly comprises a mounting frame which is perpendicular to a panel, a translation cylinder is vertically arranged at the end, far away from the end connected with the panel, of the mounting frame, the translation cylinder is in transmission connection with a moving seat, a suction plate rotating shaft which is parallel to the mounting frame is assembled on the moving seat through a bearing, the suction plate rotating shaft is connected with a pole plate suction rod provided with a vacuum suction disc through a swing arm, and the suction plate rotating shaft is also in transmission connection with a fifth driving cylinder arranged on the moving seat through a suction plate driving block matched with a linkage block; the translation cylinder drives the moving seat to translate, so that the pole piece sucking rod and the vacuum chuck move to the side located on the end face of the positive plate, and the fifth driving cylinder drives the pole piece rotating shaft to rotate so that the pole piece sucking rod swings and the vacuum chuck performs vacuum adsorption, and the positive plate is lifted in a matching manner.

In the above technical solution, the ending component includes a third sliding group seat arranged perpendicular to the panel, the third sliding group seat is connected to a third moving frame through a fourth linear guide rail arranged perpendicular to the third sliding group seat, one end of the third moving frame matching the moving direction thereof is equipped with a press roller through a third press roller seat, and the third moving frame is further in transmission connection with a fourth driving cylinder arranged on the third sliding group seat; and the fourth driving cylinder drives the third moving frame to drive the compression roller to move along a fourth linear guide rail, the compression roller is matched with a diaphragm pressed and held in the diaphragm welding and cutting process, and/or a positive plate is pressed and held in the positive plate edge covering process and matched with the plug-in winding needle unit to complete the edge covering and winding ending of the positive plate of the battery cell.

The beneficial effects of the utility model reside in that: the utility model discloses a winding mechanism lifts the subassembly through set up the positive plate in less mechanism space, when electric core convolutes to terminal position, lifts the positive plate to make things convenient for two diaphragms to cut off and weld, carry out the positive plate after the welding is accomplished and bordure the coiling, satisfy positive plate outsourcing technology demand. The utility model discloses a winding mechanism solves the problem that middle-size and small-size square electric core coiling equipment in the correlation technique field receives the space influence to realize positive plate outsourcing coiling difficulty, has realized that square little electric core positive plate outsourcing is convoluteed.

Drawings

Fig. 1 is a perspective view of the winding mechanism of the present invention;

FIG. 2 is a front view of FIG. 1;

fig. 3 is a perspective view of the winding assembly of the winding mechanism of the present invention;

FIG. 4 is another perspective view of the winding assembly of the winding mechanism of the present invention;

FIG. 5 is an exploded view of the pluggable winding pin unit of the present invention;

fig. 6 is a perspective view of the anode plate lifting assembly of the present invention.

Detailed Description

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

Referring to fig. 1 to fig. 6, the utility model discloses a square electric core positive plate outsourcing winding mechanism is used for coiling and accomplishing the positive plate outsourcing to small-size square electric core electricity core and convolutes. The winding mechanism of this embodiment lifts the subassembly through set up positive plate in less mechanism space, when electric core convolutes to terminal position, lifts the positive plate to make things convenient for two diaphragms to cut off and weld, carry out the positive plate after the welding is accomplished and bordure the coiling, satisfy positive plate outsourcing technology demand. The utility model discloses a winding mechanism solves the problem that middle-size and small-size square electric core coiling equipment in the correlation technique field receives the space influence to realize positive plate outsourcing coiling difficulty, has realized that square little electric core positive plate outsourcing is convoluteed.

Referring to fig. 1 to 6, a winding mechanism 800 for wrapping a positive plate of a square cell according to an embodiment of the present invention includes a winding assembly 100, a pole piece pressing assembly 200 disposed on a panel (not shown in fig. 1 to 6) and located on the panel and outside the winding assembly 100 in the circumferential direction, a membrane pressing assembly 300, a membrane welding and cutting assembly 400, a positive plate lifting assembly 500, and a closing assembly 600, wherein the winding assembly 100 includes two insertion and extraction type winding needle units 11 capable of rotating alternately between an upper winding station 001 and a lower winding station 002, the insertion and extraction type winding needle unit 11 located at the upper winding station 001 can receive a membrane 01, a negative plate 02, and a positive plate 03 at the upper winding station and rotate to the lower winding station 002 after completing pre-winding and inserting plate winding to perform positive plate edge-winding and closing, that is to perform pre-winding of the small square cell, and all winding after inserting plate winding until winding to membrane 01 welding and cutting are performed at the upper winding station 001, after the winding is completed, the winding assembly 100 performs station changing, the pluggable winding needle unit 11 completing the winding is wound to the lower winding station 002 together with the battery cell, in the station changing process, the pluggable winding needle unit 11 stops working, after the pluggable winding needle unit 11 rotates to the lower winding station 002, the pluggable winding needle unit 11 continues the previous winding and matches to complete the outer package of the positive electrode sheet 03, while the pluggable winding needle unit 11 located at the lower winding station 002 at the previous period is matched to rotate to the upper winding station 001 to prepare the winding of the next battery cell, and the so-called pre-winding is to firstly wind the winding battery cell by a certain thickness according to the winding requirement, and then selects to perform the insertion.

The pole piece jacking assembly 200 comprises two pole piece jacking devices 21 symmetrically arranged at two sides of the winding upper auxiliary device 700, and the two pole piece jacking devices 21 are used for pressing and pasting the unreeled negative pole piece 02 and the unreeled positive pole piece 03 on the diaphragm 01 and/or drawing the piece into the diaphragm in cooperation with the winding upper auxiliary device 700. In practice, since the separator 01, the negative electrode plate 02 and the positive electrode plate 03 are distributed in the order of the separator 01, the negative electrode plate 02, the separator 01 and the positive electrode plate 03 from left to right, the negative electrode plate is pressed against the separator 01 and/or the drawing sheet is carried out by pressing the separator 01 against the negative electrode plate 02 by the pole plate pressing device 21 located on the left side, the drawing sheet is pressed against the separator 01 and/or the drawing sheet is carried out by pressing the pole plate pressing assembly 21, so that the front end of the forward feeding of the pole plate is guided towards the winding upper auxiliary device 700, the positive and negative electrode plates are fed into the plug-pull winding needle unit 11 by the conduction of the guide roller on the winding upper auxiliary device 700, and meanwhile, the pole plate pressing device 21 located on the left side can also be used for pressing the separator 01.

The membrane pressing assembly 300 comprises two membrane pressing devices 31 which are symmetrically arranged, and the two membrane pressing devices 31 are used for pressing the membrane 01, the negative plate 02 and the positive plate 03 in the processes of pre-coiling, insert sheet coiling and rotating from the upper coiling station 001 to the lower coiling station 002 of the plug-in type coiling needle unit 11 and/or pressing the two membranes 01 to press the negative plate 02 in the process of welding and cutting the membranes by the membrane welding and cutting assembly 400. In practice, during the process of pre-winding, tab winding and rotation from the upper winding station 001 to the lower winding station 002 of the plug-in winding needle unit 11, the diaphragm 01 is not yet subjected to diaphragm welding and cutting, the diaphragm 01 is still being unwound, the diaphragm pressing device 31 on the right side presses the positive plate 03 to press the diaphragm 01 against the positive plate 03, and the diaphragm pressing device 31 on the left side presses the diaphragm 01 against the negative plate 02 to press the diaphragm 01 against the negative plate 02, of course, both the positive plate 03 and the negative plate 02 are unwound in the process. When the plug-in type winding needle unit 11 rotates to the position of the lower winding station 002, the diaphragm welding and cutting assembly 400 performs the diaphragm welding and cutting process, and the plug-in type winding needle unit 11 performs the positive plate outer-wrapping winding process, the two diaphragm jacking devices 31 on the left side and the right side both jack the diaphragm 01 through jacking the diaphragm 01, so that the negative plate 02 is clamped between the two diaphragms 01, the corresponding tension is ensured, and the diaphragm welding and cutting and the positive plate outer-wrapping winding process are kept, and the diaphragm 01 and the negative plate 02 cannot be loosened.

The positive plate lifting assembly 500 is used for lifting the positive plate 03 and enabling the diaphragm welding and cutting assembly 300 to weld and cut two diaphragms 01. In practice, the positive plate 01 is lifted away from the wound separator 01, negative plate 02 and separator 01, so that the positive plate 03 can continue to be wound after the separator 01 is welded and cut, and meanwhile, the positive plate lifting assembly 500 is further arranged at the setting position so that the separator welding and cutting assembly 300 can extend between the positive plate lifting assembly 500 and the separator jacking assembly 300 after the positive plate 03 is lifted, so that the separator 01 is welded and cut. It should be understood that, in order to complete the wrapping of the positive electrode sheet, in practice, the length of the positive electrode sheet 03 is longer than that of the negative electrode sheet 02, that is, after the negative electrode sheet 02 is clamped and wound by the two separators 01, the positive electrode sheet 03 also has a length of the set number of winding turns left outside, and after the positive electrode sheet lifting assembly 500 lifts the part, so that the separators 01 are cut and welded, the positive electrode sheet 03 starts wrapping and winding from the welding position of the separators 01.

The ending assembly 600 is used for pressing and holding the diaphragm 01 in the diaphragm welding and cutting process, and/or pressing and holding the positive plate 03 in the positive plate edge covering process and matching with the plug-in winding needle unit 11 (located at the lower winding station) to complete the edge covering and winding ending of the positive plate of the battery cell. In fact, when ending subassembly 600 was cut in the diaphragm welding, held the diaphragm 01 that waits to carry out the outside of the electric core that positive plate outsourcing was convoluteed through pressing to the messenger can not be loose with the electric core that accomplishes partial coiling, and diaphragm welding cuts the back, ending subassembly 600 again through compressing tightly positive plate 03 in the above-mentioned electric core that accomplishes partial coiling, thereby guarantees that positive plate outsourcing compresses tightly.

In some embodiments, referring to fig. 1 to 5, two pluggable winding needle units 11 are installed on the revolving assembly 12, the revolving assembly 12 includes a base seat 121 fixedly connected with the panel, a spindle turntable 122 is coaxially installed on the base seat 121, the spindle turntable 122 rotates by meshing transmission of a transmission gear 123 arranged at one axial end thereof and a driving gear 126 arranged on a driving shaft of a speed reducer 125 driven by a revolving motor 124, and drives the two pluggable winding needle units 11 nested on the spindle turntable 122 to rotate alternately between an upper winding station 001 and a lower winding station 002. In practice, the pluggable winding needle unit 11 is nested and assembled on the spindle turntable 122, that is, the pluggable winding needle unit 11 can rotate along with the spindle turntable 122, and can rotate relative to the spindle turntable 122 to perform winding; and can move along the axial direction of the spindle turntable 122 so as to carry out needle withdrawing and needle pushing. Referring to fig. 5, each of the pluggable winding needle units 11 includes a winding needle central shaft 111, a winding needle 113 connected to the winding needle central shaft 111 through a winding needle connector 112, and a winding needle spindle 115 movably inserted through the winding needle central shaft 111 and connected to an insert 114 movably inserted through the winding needle connector 112; the winding needle middle shaft 111 is movably assembled on the main shaft turntable 122 through a winding outer shaft 116 matched with a shaft sleeve (not numbered in the drawing), a first transmission gear 117 is arranged on the winding needle outer shaft 116, the first transmission gear 117 is meshed and connected with driven gears 141 arranged on two coaxially arranged transmission shafts 14, the two transmission shafts 14 are in transmission connection with a winding driving motor 16 through a synchronous belt transmission pair 15, and the transmission shafts 14 are driven to rotate by the corresponding winding driving motor 16 and drive the two plug-in winding needle units 11 to rotate relative to the main shaft turntable 122 to complete the winding of a cell; in practice, the two first transmission gears 117 are in complementary interference during transmission, the first transmission gears 117 are meshed with the driven gear 141 to perform transmission, so that the needle winding outer shaft 116 rotates, the transmission shaft 14 driving the corresponding driven gear 141 to rotate is also in transmission connection with different winding driving motors 16, and thus the corresponding plug-in needle winding unit 11 can be driven by the winding driving motor 16 to rotate and wind in the upper winding station 001 and the lower winding station 002; a tail shaft wheel 118 is further arranged at one axial end of each winding needle central shaft 111 far away from the winding needle connector 112, and a tail shaft dial wheel 119 is arranged at the end of the winding needle central shaft 115 extending out of the winding needle central shaft 111 and provided with the tail shaft wheel 118; each pluggable needle coiling unit 11 is also butted with a drawing device 17 arranged on a vertical panel, the drawing device 17 comprises a mounting plate 171 arranged on the vertical panel, a linear guide rail 172 is arranged on the mounting plate 171, a needle withdrawing block 173 and a plectrum pulling block 174 are movably arranged on the linear guide rail 172, the needle withdrawing block 173 and the plectrum pulling block 174 are respectively in transmission connection with a driving cylinder 176 fixedly arranged on the mounting plate 171 through a connecting block 175 and can slide along the linear guide rail 172 through the transmission of a matched driving cylinder 176, the needle withdrawing block 173 and the plectrum pulling block 174 are also arranged on the arrangement positions to be respectively in movable butt joint with a shaft tail wheel 118 and a shaft tail wheel 119, and drives the pluggable needle winding unit 11 to take out or withdraw the needle in the process that the needle-out poking block 173 slides along the linear guide rail 172, and/or the driving insertion sheet 114 is inserted into/withdrawn from the wound battery cell parallel to the winding needle 113 during the sliding process of the shifting sheet pulling block 174 along the linear guide rail 172.

It can be understood that, in some embodiments, referring to fig. 1 and fig. 2, the two-pole plate pressing device 21 includes a negative plate pressing device 22 and a positive plate pressing device 23, each of the negative plate pressing device 22 and the positive plate pressing device 23 includes a sliding assembly seat 211 disposed vertically to the panel, the sliding assembly seat 211 is connected to a moving frame 213 through a first linear guide rail 212 disposed vertically thereto, one end of the moving frame 213 matching its moving direction (perpendicular to the axial direction of the spindle turntable 122) is equipped with a pole piece pressing roller 215 through a pressing roller seat 214, the pressing roller seat 214 of the positive plate pressing device 23 is further connected to a sheet insertion guide block 231 adapted to the winding upper auxiliary device 700, and the moving frame 213 is further in transmission connection with a first driving cylinder 216 disposed on the sliding assembly seat 211; the first driving cylinder 216 drives the moving frame 213 to drive the pole piece pressing roller 215 and/or the sheet feeding guide block 231 to move along the first linear guide rail 212, and the unreeled negative pole piece 02 and the unreeled positive pole piece 03 are pressed against the diaphragm 01 and/or are pulled into the sheet in a matching manner. In this embodiment, each of the two diaphragm pressing devices 31 includes a first sliding set seat 311 disposed perpendicular to the panel, the first sliding set seat 311 is connected to a first moving frame 313 through a second linear guide 312 disposed perpendicular to the first sliding set seat, one end of the first moving frame 313 matching the moving direction thereof is equipped with a diaphragm pressing roller 315 through a first pressing roller seat 314, and the first moving frame 313 is further in transmission connection with a second driving cylinder 316 disposed on the first sliding set seat 311; the second driving cylinder 316 drives the first moving frame 313 to drive the diaphragm pressing roller 315 to move along the second linear guide rail 312, and the diaphragm 01, the negative plate 02 and the positive plate 03 are pressed and/or the two diaphragms 01 are pressed to clamp the negative plate 02 in a matched manner. In this embodiment, the diaphragm welding and cutting assembly 400 includes a cold and hot welding and cutting device 41 and a welding and cutting auxiliary device 42 which are symmetrically arranged, each of the cold and hot welding and cutting device 41 and the welding and cutting auxiliary device 42 includes a second sliding seat 411 which is arranged vertically to the panel, the second sliding seat 411 is connected to a welding and cutting frame 413 through a third linear guide 412 which is arranged vertically to the second sliding seat, the welding and cutting frame 413 of the cold and hot welding and cutting device 41 is connected to a hot cutting welding knife 414 through a heat insulation pad (not shown in the drawing), a diaphragm cold cutting knife 415 which is fixedly connected to the welding and cutting frame 413 is further arranged at the lower part of the hot cutting welding knife 414, the welding and cutting frame 413 of the welding and cutting auxiliary device 42 is fixedly connected to a welding and cutting cushion block 421 which is arranged at a position and is aligned with the hot cutting knife 414 and the diaphragm cold cutting knife 415, and the welding and cutting frame 413 is; the third driving cylinder 416 drives the welding and cutting frame 413 to slide along the third linear guide rail 412, so that the hot cutting welding knife 414 and the diaphragm cold cutting knife 415 move opposite to the welding and cutting cushion block 421 in a matching manner, and the diaphragms are welded and cut in a matching manner. In this embodiment, the ending assembly 600 includes a third sliding group seat 61 disposed vertically to the panel, the third sliding group seat 61 is connected to a third moving frame (not shown in the drawings) through a fourth linear guide rail 62 disposed vertically to the third sliding group seat, one end of the third moving frame matching the moving direction thereof is equipped with a pressing roller 63 through a third pressing roller seat (not shown in the drawings), and the third moving frame is further in transmission connection with a fourth driving cylinder 64 disposed on the third sliding group seat 61; and the fourth driving cylinder 64 drives the third moving frame to drive the press roller 63 to move along the fourth linear guide rail 62, and the press roller is matched with the diaphragm 01 in the welding and cutting process of the diaphragm, and/or the positive plate 03 is pressed and held in the edge covering process of the positive plate and matched with the plug-in winding needle unit 11 to complete the edge covering, winding and ending of the positive plate of the battery cell.

It can be understood that, in some embodiments, referring to fig. 1, fig. 2 and fig. 6, the positive plate lifting assembly 500 includes a mounting frame 51 disposed perpendicular to the panel, a translation cylinder 52 is disposed at an end of the mounting frame 51 away from the panel, the translation cylinder 52 is in transmission connection with a moving base 53, a plate sucking rotating shaft 54 disposed parallel to the mounting frame 51 is assembled on the moving base 53 through a bearing, the plate sucking rotating shaft 54 is connected with a plate sucking rod 56 mounted with a vacuum sucking disc 55 through a swing arm 510, and the plate sucking rotating shaft 53 is further in transmission connection with a fifth driving cylinder 59 disposed on the moving base 53 through a plate sucking driving block 57 cooperating with a linkage block 58; the translation cylinder 52 drives the moving seat 53 to translate, so that the pole piece sucking rod 56 and the vacuum chuck 55 move to the side of the end face of the positive plate 03, and the fifth driving cylinder 59 is matched to drive the sucking rotating shaft 53 to rotate, so that the pole piece sucking rod 56 swings and the vacuum chuck 55 performs vacuum adsorption, and the positive plate 03 is lifted in a matching manner. The positive plate outer-package lifting assembly has the functions that the positive plate 03 is lifted independently when the battery core is wound to the tail end, the diaphragm welding assembly 400 finishes the welding and cutting of the diaphragm after being lifted, and then the winding is continued, so that the requirement of the battery core positive plate outer-package process is met, and the specific working process comprises the following steps of 1, taking the extension state of the translation cylinder 52 as a standby position, and taking the suction plate rotating shaft 53 as a lifting standby position; step 2, when the positive plate needs to be lifted, the translation cylinder 52 returns to enable the vacuum chuck 55 and the pole piece sucking rod 56 to enter a plate sucking working position; step 3, the fifth driving air cylinder 59 extends out to drive the vacuum chuck 55 to contact the positive plate through the swing arm 510, the connecting block 58, the chuck rotating shaft 53 and the pole piece sucking rod 56, and the chuck sucks the pole piece in vacuum; and 4, step 4: the fifth driving air cylinder 59 retracts to drive the vacuum chuck 55 to lift the adsorbed positive plate 03 to a standby lifting position through the swing arm 510, the connecting block 58, the chuck rotating shaft 53 and the pole piece sucking rod 56; and 5: after the positive plate is lifted, the diaphragm is welded and cut off, the vacuum chuck 55 releases the positive plate 03 and then continues to wind, and the function of lifting the outer package of the positive plate is completed.

The above is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.

Claims

1. A winding mechanism for wrapping a square battery cell positive plate is characterized by comprising a winding assembly arranged on a panel, and a plate jacking assembly, a diaphragm welding and cutting assembly, a positive plate lifting assembly and a tail assembly which are arranged on the panel and positioned on the circumferential outer side of the winding assembly, wherein,

2. The square-cell positive plate wrapping and winding mechanism according to claim 1, wherein the two pluggable winding needle units are mounted on a revolution assembly, the revolution assembly comprises a base seat fixedly connected with a panel, a spindle turntable is coaxially mounted on the base seat, the spindle turntable rotates through meshing transmission of a transmission gear arranged at one axial end of the spindle turntable and a drive gear arranged on a drive shaft of a speed reducer driven by a revolution motor, and drives the two pluggable winding needle units nested on the spindle turntable to alternatively rotate between an upper winding station and a lower winding station; each plug-in type winding needle unit comprises a winding needle center shaft, a winding needle connected with the winding needle center shaft through a winding needle connector, and a winding needle core shaft movably penetrating through the winding needle center shaft and connected with an inserting sheet movably penetrating through the winding needle connector; the winding needle middle shaft is movably assembled on the main shaft turntable through a winding outer shaft matched with a shaft sleeve, a first transmission gear is arranged on the winding needle outer shaft and is meshed and connected with driven gears arranged on two coaxially arranged transmission shafts, the two transmission shafts are in transmission connection with a winding driving motor through synchronous belt transmission pairs, and the transmission shafts are driven to rotate by corresponding winding driving motors and drive two plug-in winding needle units to rotate relative to the main shaft turntable to complete the winding of a battery cell; a tail shaft wheel is further arranged at one axial end of each winding needle central shaft, which is far away from the winding needle connector, and a tail shaft shifting wheel is arranged at the end of the winding needle central shaft, which extends out of the winding needle central shaft and is provided with the tail shaft wheel; each plug-in winding needle unit is also butted with a drawing device arranged on the vertical panel, the drawing device comprises an installation plate arranged on the vertical panel, the mounting plate is provided with a linear guide rail, a needle-out shifting block and a shifting piece pulling block are movably arranged on the linear guide rail, the needle-out shifting block and the shifting piece pulling block are respectively in transmission connection with a driving cylinder fixedly arranged on the mounting plate through a connecting block and can slide along the linear guide rail through the transmission of a matched driving cylinder, the needle-out shifting block and the shifting piece pulling block are also movably butted with the shaft tail wheel and the shaft tail shifting wheel respectively at the arrangement positions, and the needle withdrawing and poking block drives the pluggable needle rolling unit to withdraw the needle or withdraw the needle in the sliding process along the linear guide rail, and/or the shifting sheet pulling block drives the inserting sheet to be parallel to the winding needle to insert/withdraw the wound battery cell in the sliding process of the shifting sheet pulling block along the linear guide rail.

3. The square-cell positive plate wrapping and winding mechanism according to claim 1, wherein the two pole piece pressing devices comprise a negative plate pressing device and a positive plate pressing device, the negative plate pressing device and the positive plate pressing device both comprise a sliding assembly seat arranged perpendicular to a panel, the sliding assembly seat is connected with a moving frame through a first linear guide rail arranged perpendicular to the sliding assembly seat, one end of the moving frame, which is matched with the moving direction of the moving frame, is provided with a pole piece pressing roller through a pressing roller seat, the pressing roller seat of the positive plate pressing device is further connected with a sheet inserting guide block matched with the winding upper auxiliary device, and the moving frame is further in transmission connection with a first driving cylinder arranged on the sliding assembly seat; the first driving cylinder drives the moving frame to drive the pole piece pressing roller and/or the sheet feeding guide block to move along the first linear guide rail, and the unreeled negative pole sheet and the unreeled positive pole sheet are matched to be pressed on the diaphragm and/or pulled into the sheet.

4. The square-cell positive plate wrapping and winding mechanism according to claim 1, wherein each of the two diaphragm pressing devices comprises a first sliding group seat arranged perpendicular to the panel, the first sliding group seat is connected with a first moving frame through a second linear guide rail arranged perpendicular to the first sliding group seat, one end of the first moving frame, which is matched with the moving direction of the first moving frame, is provided with a diaphragm pressing roller through a first pressing roller seat, and the first moving frame is further in transmission connection with a second driving cylinder arranged on the first sliding group seat; and the second driving cylinder drives the first moving frame to drive the diaphragm pressing roller to move along the second linear guide rail, and the diaphragm, the negative plate and the positive plate are pressed and/or pressed to clamp the negative plate in a matching manner.

5. The winding mechanism for the square-cell positive plate outer package according to claim 1, wherein the diaphragm welding and cutting assembly comprises a cold and hot welding and cutting device and a welding and cutting auxiliary device which are symmetrically arranged, the cold and hot welding and cutting device and the welding and cutting auxiliary device both comprise a second sliding group seat which is arranged perpendicular to a panel, the second sliding group seat is connected with a welding and cutting frame through a third linear guide rail which is arranged perpendicular to the second sliding group seat, the welding and cutting frame of the cold and hot welding and cutting device is connected with a hot cutting welding knife through a heat insulation pad, a diaphragm cold cutter which is fixedly connected with the welding and cutting frame is further arranged at the lower part of the hot cutting welding knife, the welding and cutting frame of the welding and cutting auxiliary device is fixedly connected with a welding and cutting cushion block which is arranged at the arrangement position and is matched with the hot cutting knife and the diaphragm cold cutter, and the welding and cutting frame is further in transmission connection with a third driving cylinder which; and the third driving cylinder drives the welding and cutting frame to slide along a third linear guide rail, so that the hot cutting welding knife and the diaphragm cold cutting knife move in opposite directions with the welding and cutting cushion block, and the welding and cutting are performed on the diaphragm in a matching manner.

6. The winding mechanism for the square-cell positive plate outer wrapping is characterized in that the positive plate lifting assembly comprises a mounting frame which is perpendicular to a panel, a translation cylinder is arranged at the end, far away from the end connected with the panel, of the mounting frame, the translation cylinder is perpendicular to the end, connected with the panel, of the mounting frame, the translation cylinder is in transmission connection with a moving seat, a plate sucking rotating shaft which is parallel to the mounting frame is assembled on the moving seat through a bearing, the plate sucking rotating shaft is connected with a plate sucking rod for mounting a vacuum sucker through a swing arm, and the plate sucking rotating shaft is also in transmission connection with a fifth driving cylinder arranged on the moving seat through a plate sucking driving block matching with a linkage block; the translation cylinder drives the moving seat to translate, so that the pole piece sucking rod and the vacuum chuck move to the side located on the end face of the positive plate, and the fifth driving cylinder drives the pole piece rotating shaft to rotate so that the pole piece sucking rod swings and the vacuum chuck performs vacuum adsorption, and the positive plate is lifted in a matching manner.

7. The winding mechanism for the square-cell positive plate outer wrapping according to claim 1, wherein the ending assembly comprises a third sliding group seat arranged perpendicular to the panel, the third sliding group seat is connected with a third moving frame through a fourth linear guide rail arranged perpendicular to the third sliding group seat, one end, matched with the moving direction of the third moving frame, of the third moving frame is provided with a press roller through a third press roller seat, and the third moving frame is further in transmission connection with a fourth driving cylinder arranged on the third sliding group seat; and the fourth driving cylinder drives the third moving frame to drive the compression roller to move along a fourth linear guide rail, the compression roller is matched with a diaphragm pressed and held in the diaphragm welding and cutting process, and/or a positive plate is pressed and held in the positive plate edge covering process and matched with the plug-in winding needle unit to complete the edge covering and winding ending of the positive plate of the battery cell.