CN111740040A

CN111740040A - Automatic coating machine for battery cell

Info

Publication number: CN111740040A
Application number: CN201910877140.XA
Authority: CN
Inventors: 钟遇舟; 范泽明; 邹同贵; 李博智
Original assignee: Dongguan Hagong Automatic Control Technology Co ltd
Current assignee: Dongguan Hagong Automatic Control Technology Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-10-02

Abstract

The invention discloses an automatic battery cell film coating machine. The device not only has double-station setting, but also can carry out the multi-station setting on the basis of the double-station setting. The automatic battery cell film coating machine is composed of a die material system, a battery cell system and a die material battery cell coating system. The die material system comprises a film transfer mechanism, a pit punching mechanism and an unreeling and film-drawing mechanism. The battery cell system comprises a battery cell carrying mechanism, a hot-pressing forming mechanism, a battery cell shell entering mechanism and a lug shaping mechanism, and the die material battery cell coating system comprises a clamp mechanism, a battery cell transferring mechanism I, a top sealing mechanism, an angle sealing mechanism, a side sealing mechanism, a battery cell transferring mechanism II and a side cutting mechanism. The die-coating material processing system, the battery cell shaping processing system and the die material battery cell integration coating system are all arranged in double stations or multiple stations. As a preferred scheme, the automatic battery cell film coating machine further comprises a top cutting mechanism, a material tray feeding mechanism, an insulation testing mechanism and a code spraying mechanism.

Description

Automatic coating machine for battery cell

Technical Field

An automatic film coating machine for a battery core relates to battery core film coating equipment, in particular to battery core film coating equipment with double-station or multi-station automation.

Background

At present, lithium batteries and polymer batteries are widely applied in the 3C industry, the procedure of coating an insulating film outside a battery core in the battery production and processing process is important, and various performance indexes of insulation and sealing after the battery core is coated by the insulating film are directly related to the service life and the safety of the battery. In the prior art of electric core coating, a simplex bit pipeline mode which is set by each process in a segmented manner is adopted. The total twenty working procedures of the electric core film coating operation are nearly carried out, and the single-work-bit assembly line which is arranged in a segmented mode has the defects of large occupied space, more operators, high energy consumption and the like.

In order to overcome the defects, some manufacturers develop a single-station integrated automatic battery cell coating machine with integrated battery cell coating operation and various processes. However, when the equipment is packaged, the capacity for packaging only one battery cell is low, and the corner sealing process and the side sealing process are arranged together, so that the possibility of packaging two or more battery cells is limited.

Disclosure of Invention

In order to solve the problems, the invention provides an automatic battery cell film coating machine. The device not only has double-station setting, but also can carry out the multi-station setting on the basis of the double-station setting. The invention relates to an automatic battery cell film coating machine which is composed of a die material system, a battery cell system and a die material battery cell coating system.

The die material system comprises a film transfer mechanism, a pit punching mechanism and an unreeling and film-drawing mechanism. The battery cell system comprises a battery cell carrying mechanism, a hot-pressing forming mechanism, a battery cell shell entering mechanism and a lug shaping mechanism. The module battery core cladding system comprises a clamp mechanism, a battery core transfer mechanism I, a top sealing mechanism, an angle sealing mechanism, a side sealing mechanism, a battery core transfer mechanism II and a side cutting mechanism. The die-coating material processing system, the battery cell shaping processing system and the die material battery cell integration coating system are all arranged in double stations or multiple stations.

Specifically, the film transfer mechanism comprises a sliding table module, a first rotor and a second rotor, wherein the first rotor and the second rotor are arranged on the sliding table module. The unwinding and film-drawing mechanism comprises an unwinding device, a cutting device, a stretching device and a piece die conveying device.

Specifically, the pit punching mechanism comprises a die, an upper servo motor, a lower servo motor and a top die cylinder. Cell transport mechanism is including the slip table module and set up two transport slip tables on the slip table module. The battery cell transferring mechanism comprises a moving module and a material picking device arranged on the moving module.

Specifically, the hot-press forming mechanism comprises a lifting servo motor, a heating block and a mold.

Specifically, the electric core shell entering mechanism comprises a moving module and a suction pickup device.

Specifically, the clamp mechanism comprises a sliding table module and a clamping overturning device arranged on the sliding table module.

Specifically, the top sealing mechanism comprises a left top sealing device and a right top sealing device which are arranged in parallel and have the same structure.

Specifically, the corner sealing mechanism comprises a left corner sealing device and a right corner sealing device which are arranged in parallel and have the same structure.

Specifically, the side sealing mechanism comprises a transverse moving platform and a side sealing device.

Specifically, electric core shifts mechanism II including sideslip module and two and parallel and two that the structure is unanimous set up two on the sideslip module and pick up the material device.

Specifically, the side cutting mechanism comprises a lifting cylinder, an upper cutter and a lower cutter.

The invention provides a die material system of an automatic battery cell film coating machine, which further comprises a double-station or multi-station top cutting mechanism, wherein the top cutting mechanism is arranged between a pit punching mechanism and a clamp mechanism.

Specifically, the top cutting mechanism comprises a cutter unit I, a cutter unit II, a sliding block and a lifting cylinder.

Specifically, utmost point ear plastic mechanism sets up between hot briquetting mechanism and anchor clamps mechanism, and utmost point ear plastic mechanism is including electric core alignment device and utmost point ear bending device.

The invention provides an automatic battery cell coating machine, and the battery cell system further comprises a double-station or multi-station charging tray feeding mechanism, wherein the charging tray feeding mechanism is arranged at the front end of the hot-pressing forming mechanism.

Specifically, charging tray feed mechanism is including going up and down to expect the platform, moving a set device and electric core and moving material device.

The invention provides an automatic battery cell film coating machine, and the die material battery cell coating system further comprises an insulation testing mechanism arranged in a double-station or multi-station mode, wherein the insulation testing mechanism is arranged at the rear end of the side cutting mechanism.

Specifically, the insulation testing mechanism comprises a turnover device and a testing device.

The invention provides an automatic battery cell coating machine, and the die material battery cell coating system further comprises a code spraying mechanism arranged in double stations or multiple stations, wherein the code spraying mechanism is arranged at the rear end of the insulation testing mechanism.

Specifically, the code spraying mechanism is composed of two code spraying devices which are arranged oppositely.

The invention provides an automatic battery core film coating machine which has the beneficial effects that all working procedures of coating an insulating film outside a battery core in the battery production and processing process are integrated into one device, so that the full-automatic production integration from the front end cutting of the insulating film to the final test code spraying is realized, the production cost is reduced, and the occupied area of the device is reduced. The double-station or multi-station design of each mechanism of the film coating machine reduces the cost and the energy consumption and improves the equipment capacity by 33 percent.

Description of drawings, fig. 1 is a three-dimensional axonometric view (one) of the overall structure of an automatic battery cell film coating machine of the invention, fig. 2 is a three-dimensional axonometric view of a film transfer mechanism A of the automatic battery cell film coating machine of the invention, fig. 3 is a three-dimensional axonometric view of a film transfer mechanism C of the automatic battery cell film coating machine of the invention, a hot-pressing forming mechanism D, a battery cell case-entering mechanism E, and a three-dimensional axonometric view 4 is a three-dimensional axonometric view of a film transfer mechanism C of the automatic battery cell film coating machine of the invention, fig. 5 is a three-dimensional axonometric view of upper and lower mold cores of a hot-pressing forming mechanism D of the automatic battery cell film coating machine of the invention, fig. 6 is a three-dimensional axonometric view of a clamp mechanism F of the automatic battery cell film coating machine of the invention, fig. 7 is a three-dimensional axonometric view of a top sealing mechanism H of the automatic battery cell film coating machine of the invention, fig. 8 is a three-dimensional axonometric view of a three-dimensional axonometric Fig. 11 is a three-dimensional axonometric view of a cell transfer mechanism II K three-dimensional axonometric view of a side cutting mechanism L of an automatic film wrapping machine of the invention, fig. 12 is a three-dimensional axonometric view of an overall structure of an automatic film wrapping machine of the invention, fig. 13 is a three-dimensional axonometric view of a top cutting mechanism M of an automatic film wrapping machine of the invention, fig. 14 is a three-dimensional axonometric view of a top cutting mechanism M of an automatic film wrapping machine of the invention, fig. 15 is a three-dimensional axonometric view of an unwinding film pulling mechanism O of an automatic film wrapping machine of the invention, fig. 16 is a three-dimensional axonometric view of a tab bending device N2 of an automatic film wrapping machine ear shaping mechanism N of the invention, fig. 17 is a three-dimensional axonometric view of a cell alignment device N1 of an automatic film wrapping machine ear shaping mechanism N of the invention, fig. 19 is a three-dimensional axonometric view of a charging mechanism P of an automatic film wrapping machine of the invention, fig. 20 is a three-dimensional axonometric R three-dimensional axonometric drawing 21 is a production process flow chart of an automatic battery cell film coating machine fifth and a specific implementation mode

An embodiment of an automatic battery cell film coating machine of the present invention is shown in fig. 1, and the film coating machine is composed of a mold material system 1, a battery cell system 2, and a mold material battery cell coating system 3. The die material system 1 comprises a film transfer mechanism A, a pit punching mechanism B and an unreeling and film drawing mechanism O, and the battery cell system 2 comprises a battery cell carrying mechanism C, a hot-pressing forming mechanism D, a battery cell casing entering mechanism E and a lug shaping mechanism N. The module battery core coating system 3 comprises a clamp mechanism F, a battery core transfer mechanism IG, a top sealing mechanism H, an angle sealing mechanism I, a side sealing mechanism J, a battery core transfer mechanism II K and a side cutting mechanism L. The die-coating material processing system 1, the battery cell shaping processing system 2 and the die material battery cell integration coating system 3 are all arranged in double stations or multiple stations.

Specifically, the film transfer mechanism a shown in fig. 2 includes a slide table module a1, and a first mover a2 and a second mover A3 provided on the slide table module a 1. The lower ends of the upper plate surfaces Aa of the first rotor A2 and the second rotor A3 are provided with suckers a, and the reciprocating motion mode of the first rotor A2 and the second rotor A3 on the sliding table module A1 can be set to be in a linkage or non-linkage state. The upper plate surfaces Aa of the first mover A2 and the second mover A3 shown in FIG. 2 are arranged in a double-station mode for simultaneously sucking two pieces of insulation films, and the transverse length of the upper plate surfaces Aa can be increased to be arranged in a multi-station mode for sucking a plurality of pieces of insulation films.

Specifically, the pit punching mechanism B shown in fig. 2 includes a die B1, an upper servomotor B2, a lower servomotor B3, and a top die cylinder B4. The upper servo motor B2 drives the upper die core B1a to move up and down, the lower servo motor B3 drives the lower die core B1B to move up and down, the upper die core B1a is provided with a protrusion Ba, and the lower die core B1B is provided with a groove Bb. The upper die core B1a and the lower die core B1B shown in FIG. 2 are arranged in a double-station mode for simultaneously punching two insulating films, and the transverse length of the upper die core B1a and the lower die core B1B can be lengthened to be arranged in a multi-station mode for punching a plurality of insulating films.

Specifically, as shown in fig. 3 and 4, the cell carrying mechanism C includes a sliding table module C1, and a carrying sliding table ic 2 and a carrying sliding table ic 3 that are disposed on the sliding table module C1, and suction cups a are disposed at lower ends of upper plate surfaces Ca of the carrying sliding table ic 2 and the carrying sliding table ic 3. The reciprocating motion modes of the conveying sliding table IC 2 and the conveying sliding table II C3 on the sliding table module C1 can be set to be in a linkage or non-linkage state. The double-station setting that two electric cores are drawn simultaneously to face Ca on transport slip table IC 2, the transport slip table IIC 3 that shown in figure 3, the extension go up the horizontal length of face Aa can set to the multistation mode that draws a plurality of electric cores.

Specifically, the hot press molding mechanism D shown in fig. 3 and 5 is composed of a lifting servo motor D1, a heating block D2 and a mold D3, the lower mold core D3b is fixedly arranged, the lifting servo motor D1 drives the heating block D2 and the upper mold core D3a to move up and down, and a groove Da is formed in the lower end face of the upper mold core D3 a. The upper die core D3a and the lower die core D3b shown in fig. 5 are arranged in a double-station mode for simultaneously hot-pressing two battery cells, and the transverse lengths of the upper die core D3a and the lower die core D3b are lengthened to be arranged in a multi-station mode for simultaneously punching a plurality of insulating films.

Specifically, the electric core shell entering mechanism E shown in fig. 6 includes a moving module E1 and a suction pickup device E2, the suction pickup device E2 includes a servo motor Ea, a lifting plate Eb and a suction pickup plate EC, and a suction cup a is disposed on a lower surface of the suction pickup plate EC. The suction pick-up device E2 can horizontally move on the sliding table module E1. The servo motor Ea can drive the lifting plate Eb and the suction pickup plate EC to move up and down. The lifting plate Eb shown in fig. 6 is a double-station setting for simultaneously picking up two electric cores, and a multi-station mode for simultaneously picking up a plurality of insulating films can be set by lengthening the transverse length of the lower plate of the lifting plate Eb and additionally arranging a plurality of picking-up plates EC.

Specifically, as shown in fig. 6, the clamp mechanism F includes a sliding table module F1 and a flipping device F2 disposed on the sliding table module F1, the flipping device F2 includes a servo motor Fa, a flipping board Fb, and a fixing board Fc, the servo motor Fa drives the flipping board to rotate around the Fb around one end of the fixing board Fc, and the flipping device F2 can move horizontally on the sliding table module F1. The folding plate Fb and the fixed plate Fc shown in fig. 6 are arranged in a double-station mode of simultaneously folding two insulating films, and the transverse lengths of the folding plate Fb and the fixed plate Fc can be lengthened to be arranged in a multi-station mode of simultaneously folding a plurality of insulating films.

Specifically, the top sealing mechanism H shown in fig. 7 includes two left top sealing devices H1 and right top sealing devices H2 which are arranged in parallel and have the same structure. The left top sealing device H1 or the right top sealing device H2 comprises a servo motor Ha, a lifting cylinder Hb, a heating block Hc and a top sealing head Hd, the servo motor Ha can adjust the distance between the left top sealing device H1 and the right top sealing device H2, and the lifting servo motor Hb can drive the heating block Hc and the top sealing head Hd to move up and down. The two juxtaposed left and right tip seals H1 and H2 shown in fig. 8 are a double-station arrangement capable of simultaneously tip-sealing two electrical core films, and a plurality of juxtaposed tip seals are arranged in a multi-station mode capable of simultaneously tip-sealing a plurality of electrical core films.

Specifically, the angle sealing mechanism I shown in fig. 8 includes a left angle sealing device I1 and a right angle sealing device I2 which are arranged in parallel and have the same structure, and the left angle sealing device I1 or the right angle sealing device I2 includes a jig Ia, an angle sealing head Ib, a heating block Ic, a translation cylinder Id and a lifting cylinder Ie. The translation cylinder Id drives the angle end socket Ib, the heating block Ic and the lifting cylinder Ie to move in parallel along the set direction of the jig Ia, and the lifting cylinder Ie drives the angle end socket Ib and the heating block Ic to move up and down. The two juxtaposed left corner seals I1 and right corner seals I2 shown in fig. 9 are a double-station arrangement capable of simultaneously corner sealing two electrical core films, and a plurality of juxtaposed corner seals are a multi-station mode capable of simultaneously corner sealing a plurality of electrical core films.

Specifically, the side sealing mechanism J shown in fig. 9 includes a traverse platform J1 and a side sealing device J2. The transverse moving platform J1 comprises a transverse moving module Ja and a jig platform Jb arranged on the transverse moving module Ja, and the side sealing device J2 comprises a side sealing head Jc, a heating block Jd and a servo motor Je. The transverse moving module Ja drives the jig platform Jb to move in parallel, and the servo motor Je drives the side end socket Jc and the heating block Jd to move up and down. The transverse moving platform J1 and the side sealing device J2 shown in fig. 10 are arranged in a double-station mode capable of simultaneously sealing two electric core films in a side mode, and the transverse lengthening jig platform Jb, the movable side end socket Jc and the heating block Jd are arranged in a multi-station mode capable of simultaneously sealing a plurality of electric core films in a side mode.

Specifically, the cell transfer mechanism ii K shown in fig. 10 includes a traverse module K1 and two picking devices K2 and K3 that are arranged in parallel and have the same structure on the traverse module K1. The material picking device K2 or K3 comprises a lifting cylinder Ka, a connecting plate Kb and a material picking block Kc, and a suction cup a is arranged at the lower end of the material picking block Kc. The lifting cylinder Ka drives the connecting plate Kb and the material picking block Kc to move up and down. The movement patterns of the pickup devices K2 and K3 on the traverse module K1 may be set to be interlocked or non-interlocked. The material pickup device K2 or K3 shown in fig. 10 is a double-station device capable of moving two cells simultaneously, and a multi-station mode capable of moving a plurality of cells simultaneously can be set by horizontally lengthening the connecting plate Kb and adding a plurality of material pickup blocks Kc simultaneously.

Specifically, the side cutting mechanism L shown in fig. 11 includes a lifting cylinder L1, an upper cutter L2, and a lower cutter L3.

The lower cutter L3 is fixedly arranged, and the lifting cylinder L1 drives the upper cutter L2 to move up and down. The upper cutter L2 and the lower cutter L3 shown in fig. 12 are arranged in a double-station mode for simultaneously cutting two sheets of electrical core films at one side, and the lengthened upper cutter L2 and the lengthened lower cutter L3 are arranged in a multi-station mode for simultaneously cutting a plurality of electrical core films at one side.

In the working process of the automatic battery cell film wrapping machine in the first embodiment, the die material system 1 sometimes has the problems that the edge of the insulating film is not cut neatly or is not uniform in size, or the edge of the insulating film is wrinkled after being punched by the pit punching mechanism B.

In order to solve the technical problem, the invention further provides an embodiment two of the automatic battery cell film coating machine.

Specifically, the die material system 1 of the automatic battery cell film coating machine shown in fig. 12-14 further includes a top cutting mechanism M, and the top cutting mechanism M is disposed between the pit punching mechanism B and the fixture mechanism F. The top cutting mechanism M comprises a cutter set I M1, a cutter set II N2 and a sliding block M3 lifting cylinder M4, an upper cutter Ma and a lower cutter Mb are respectively arranged on the cutter set I M1 and the cutter set II M2, the sliding block M3 can adjust the distance between the cutter set I M1 and the cutter set II M2, and the lifting cylinder M4 drives the upper cutter Ma to move up and down. The upper cutter Ma and the lower cutter Mb shown in fig. 13 are provided in a double-station configuration capable of simultaneously top-cutting two sheets of insulation films, and the elongated upper cutter Ma and the elongated lower cutter Mb are provided in a multi-station mode capable of simultaneously top-cutting a plurality of insulation films.

Specifically, as shown in fig. 12 and 15, the unwinding and film-drawing mechanism O is disposed at the front end of the pit punching mechanism B. The unwinding and film-drawing mechanism O comprises an unwinding device O1, a cutting device O2, a stretching device O3 and a sheet die conveying device O4. The film placing plate O4a provided on the die conveying device O4 shown in fig. 16 is a double-station arrangement for simultaneously cutting and conveying two insulating films, and the addition of a plurality of film placing plates O4a can be set to a multi-station mode for simultaneously cutting and conveying a plurality of insulating films.

Specifically, as shown in fig. 3, 12, 16 and 17, the tab shaping mechanism N is disposed between the hot press forming mechanism D and the clamping mechanism F, and the tab shaping mechanism N includes a cell alignment device N1 and a tab bending device N2. Cell aligning device N1 is including removing module N1a, clamping device IN 1b, clamping device II N1c and material platform N1d, clamping device I N1b or clamping device II N1c are including lift cylinder Na, clamping jaw deflector Nb, clamping jaw Nc, remove module N1a drive clamping device N1b and clamping device N1c parallel motion, lift cylinder Na drives opening and shutting of clamping jaw Hc through drive clamping jaw deflector Hb. The tab bending device N2 comprises a bender IN 2a and a bender II N2b, wherein the bender IN 2a or the bender II N2b comprises a driving cylinder Nd and a bending jig Ne, and the driving cylinder Nd drives the bending jig Ne to move up and down. The cell alignment device N1 and the tab bending device N2 shown in fig. 16 and 17 are configured to have two cell alignments and tab bending stations at the same time, and a plurality of clamping devices and a transverse lengthened material placing table N1d are added to form an alignment device multi-station mode capable of aligning a plurality of cells at the same time, and a plurality of bending devices are added to form a bending device multi-station mode capable of bending a plurality of cell tabs at the same time.

In the operation of the automatic battery cell film coating machine provided in the first or fourth embodiment, the battery cell at the front end of the battery cell system 2 needs to be placed on the film coating machine manually or by other devices, and then is carried by the battery cell carrying mechanism C into the mold of the hot-press forming mechanism D for hot-press forming. In order to accelerate the speed of carrying the front end of the core system 2 of the automatic core coating machine, reduce the flow of inserting the core into the machine and improve the accuracy of hot press forming of the core, the invention provides a method for automatically coating the core with a core. The invention further provides a fifth embodiment of the automatic battery cell film coating machine.

Specifically, the battery cell system 2 shown in fig. 18 further includes a tray feeding mechanism P with two or more stations, where the tray feeding mechanism P includes a lifting material table P1, a tray moving device P2, and a battery cell moving device P3. The lifting material platform P1 includes a lifting servo motor P1a, a cell loading assembly P1b, a tray retraction assembly P1c, and the servo motor P1a can drive the cell loading assembly P1b and the tray retraction assembly P1c to move up and down. The tray moving device P2 comprises a translation module P2a, a moving connecting plate P2b, a lifting cylinder P2c and two material picking plates P2d, and the lower end faces of the material picking plates P2d are provided with suckers a. The movable connecting plate P2b drives the lifting cylinder P2c and the two material picking plates P2d to move horizontally on the translation module P2a, and the lifting cylinder IIP 2c drives the material picking plates P2d to move up and down. The battery core material moving device P3 comprises a rotating assembly P3a, a lifting cylinder II P3b, a rotating connecting plate P3c and a material picking assembly P3d, wherein a suction disc a is arranged at the lower end of the material picking assembly P3 d. The lifting cylinder II P3b can drive the rotating assembly P3a, the rotating connecting plate P3c and the picking assembly P3d to move up and down. The rotating assembly P3a can drive the picking assembly P3d to rotate around the rotating connecting plate P3 c. Fig. 19 shows that the tray feeding mechanism P is a double-station setting for simultaneously feeding two battery cells, and a plurality of material pickup plates P2d are added to set a multi-station mode of a bending device for simultaneously bending a plurality of battery cell tabs.

The coated battery cell which completes the procedures in the embodiment needs to be taken off the machine for insulation test, so that the process flow of the detection of the coated battery cell is reduced, and the integrated detection is realized.

Specifically, the die material electric core coating system 3 shown in fig. 19 further includes an insulation testing mechanism Q arranged in a double-station or multi-station manner, and the insulation testing mechanism Q is arranged at the rear end of the side cutting mechanism L. The insulation testing mechanism Q comprises a turnover device Q1 and a testing device Q2. The turnover device Q1 comprises a translation module I Q1a, a servo motor Q1b, a turnover assembly Q1c and two gripper assemblies Q1d, wherein the gripper assembly Q1d consists of a finger grip cylinder Qa and a gripping jaw Qb, the servo motor Q1b, the turnover assembly Q1c and the gripper assembly Q1d can horizontally move on the translation module I Q1a, and the servo motor Q1b can drive the turnover assembly Q1c and the gripper assembly Q1d to turn ninety degrees. The testing device Q2 comprises two detection assemblies Q2a, Q2b and a translation module Q2c II which are identical in structure, wherein the translation module II Q2c can drive the detection assemblies Q2a and Q2b to move horizontally along the direction in which the translation module Q2c is arranged. The insulation testing mechanism Q shown in fig. 19 is a double-station configuration for simultaneously testing two battery cells, and a multi-station mode for simultaneously testing a plurality of battery cells can be set after a plurality of gripper assemblies Q1d are additionally arranged on the turnover device Q1 and a plurality of detection assemblies are additionally arranged on the testing device Q2.

In order to mark and distinguish the tested battery cells, the invention further provides a seventh embodiment of the automatic battery cell film coating machine with the code spraying mechanism.

Specifically, the die material battery core coating system 3 further comprises a code spraying mechanism R arranged at double stations or multiple stations; the code spraying mechanism R is arranged at the rear end of the insulation testing mechanism Q and consists of two code spraying devices R1 and R2 which are arranged oppositely.

The whole machine production process flow of the automatic battery cell film coating machine is described as follows, and the process flow takes a double-station film coating machine as an example and is not limited by the invention.

And (I) the production flows of the film material system 1 and the battery cell system 2 are synchronously carried out.

1a) An insulating film roll is placed on an unwinding device O1 of the unwinding and film-drawing mechanism O shown in fig. 15 and 21, the insulating film roll is drawn out by a stretching device O3, two insulating films with equal width are cut by a cutting device O2, and the insulating films are positioned by adjusting the distance by a film die conveying device O4 and conveyed to the lower side of a first rotor a2 of the film transfer mechanism a. (the production flow is the third preferred embodiment of the coating machine of the invention)

1b) In the film transfer mechanism a shown in fig. 2 and 21, the suction cup a at the lower end of the first mover a2 sucks two insulation films and conveys the insulation films to the die B1 of the pit punching mechanism B for pit punching, and after the pit punching is completed, the second mover A3 of the film transfer mechanism a takes out the diaphragms.

1c) The second mover a3 of the film transfer mechanism a shown in fig. 2 and 13 and 21 moves the taken-out insulating film pieces to the top cutting mechanism M to cut off the excess portions at the upper and lower ends of the two insulating films. (the production flow is the second preferred embodiment of the coating machine of the invention)

1d) The second mover a3 of the film transfer mechanism a shown in fig. 6 and 21 conveys the two top-cut insulating films onto the fixed plate Fc of the jig mechanism F, and the film transfer mechanism a is retracted to the initial position.

2a) The tray feeding mechanism P shown in fig. 18 and 21 aligns, positions and moves two battery cells from the tray to the material placing table FG through the material lifting table P1, the tray moving device P2 and the cell moving device P3. (the production flow is the embodiment five of the preferred embodiment of the film coating machine of the invention)

2b) Fig. 3 and 4 show that two electric cores on the material placing table FG shown in fig. 21 are adsorbed by the electric core carrying mechanism C carrying sliding table C2 and conveyed to the hot press molding mechanism D for hot press molding, and the carrying sliding table C2 returns to the initial position. And taking out the battery cell after shaping by the conveying sliding table C3.

2c) The cell carrying mechanism C carrying sliding table C3 shown in fig. 3, 17 and 21 transports the two taken-out and shaped cells to the cell aligning device N1 of the tab shaping mechanism N to reposition and align the cells. (the production flow is the fourth preferred embodiment of the film coating machine of the invention)

2d) Fig. 3, fig. 16, and fig. 21 show that two cells that have been positioned and aligned are moved by the suction pickup device E2 of the cell housing mechanism E to the tab bending device N2 of the cell alignment device N1 to perform a bending operation on the cell tabs. (the production flow is the fourth preferred embodiment of the film coating machine of the invention)

2e) The suction device E2 of the cell housing mechanism E shown in fig. 6 and 21 conveys the cell with the bent tab to the punching pit of the insulating membrane on the fixing plate Fc of the fixture mechanism F. The folding plate Fb of the clamp mechanism F folds the two insulating films.

(II) coating system of mould material battery core (3)

3a) Fig. 9 and 7 are views showing that the material pickup device G2 of the cell transfer mechanism ig shown in fig. 21 takes out the two folded electric film core cladding bodies and moves the two folded electric film core cladding bodies to the top sealing mechanism H to perform hot-press sealing on the electrode lug ends of the electric film core cladding bodies.

3b) Fig. 9 and 8 are views showing that the material pickup device G2 of the cell transfer mechanism ig shown in fig. 21 moves the two electrical film core cladding bodies with the lug ends subjected to the hot-press sealing to the corner sealing mechanism I to perform the hot-press sealing on the lower left corner of the electrical film core cladding bodies.

Fig. 9 a to 21 b, the picking device G2 of the cell transfer mechanism ig moves the angle-sealed electrical film core covering body to the right of the side sealing mechanism J. Sideslip module Ja drive tool platform Jb of side seal mechanism J removes to electric core transfer mechanism I direction, and electric core transfer mechanism IG picks up material device G2 and places two electric membrane core cladding bodies on tool platform Jb respectively. The jig platform Jb is driven to return to the initial position by the transverse moving module Ja, and the right side ends of the two electric membrane core cladding bodies are subjected to hot-pressing sealing by the side sealing device J2.

3d) Fig. 10, 11 and 21 show that the two electrical film core cladding bodies with the side seals completed are adsorbed by the material picking device K2 of the cell transfer mechanism ii K and moved to the side cutting mechanism L to cut off the redundant part at the right side end of the electrical film core cladding body.

3d) Two pieces of electric film core cladding bodies with the side cut shown in fig. 19 and fig. 21 are adsorbed by a material picking device K3 of a cell transfer mechanism ii K and move to a station Q of an insulation testing mechanism. The detection assemblies Q2a and Q2b of the testing device Q2 move towards the direction of the material picking device K3 under the driving of the translation module ii Q2 c. After the two detection assemblies Q2a and Q2b move in place, the material picking device K3 places the two electric film core cladding bodies on the detection assemblies Q2a and Q2b, the material picking device K3 moves back to the initial position, and the detection assemblies Q2a and Q2b return to the initial position to perform insulation test on the electric film core cladding bodies. After testing is complete, the test assemblies Q2a, Q2b are moved back to the position to receive the two electrical film core wraps. (the production flow is the preferred embodiment of the coating machine of the invention, sixth)

3e) Fig. 19 two pieces of electrical film core cladding bodies after the insulation test shown in fig. 21 are grabbed by the grabbing and clamping assembly Q1d of the turnover device Q1, and the grabbed electrical film core cladding bodies are turned to be in a vertical state by ninety degrees through the turnover assembly Q1 c. The turnover device Q1 drives the translation module I Q1a to move the clamped electric film core cladding body towards the direction of the code spraying mechanism R. After the two electric film core cladding bodies move between the two code spraying devices R1 and R2, the code spraying devices can simultaneously carry out code printing operation on the front and back surfaces of each electric film core cladding body in the moving process. After the code printing is finished, the two electric film core cladding bodies are taken out by manual work or other devices, and the turnover device Q1 moves back to the initial position.

The above is a detailed description of the scheme of the automatic battery cell film coating machine provided in the embodiment of the present invention, and a person skilled in the art may change the specific implementation manner and the application range according to the idea of the embodiment of the present invention. In summary, the content of the present specification should not be construed as limiting the present invention, and any modification made according to the design concept of the present invention is within the scope of the present invention.

Claims

1. An automatic battery cell film coating machine is characterized in that the coating machine is composed of a die material system, a battery cell system and a die material battery cell coating system;

the die material system comprises a film transfer mechanism, a pit punching mechanism and an unreeling and film-drawing mechanism;

the battery cell system comprises a battery cell carrying mechanism, a hot-pressing forming mechanism, a battery cell shell entering mechanism and a lug shaping mechanism;

the module battery core coating system comprises a clamp mechanism, a battery core transfer mechanism I, a top sealing mechanism, an angle sealing mechanism, a side sealing mechanism, a battery core transfer mechanism II and a side cutting mechanism;

the die-coating material processing system, the battery cell shaping processing system and the die material battery cell integration coating system are all arranged in double stations or multiple stations.

2. The automatic battery cell film coating machine according to claim 1, wherein the film transfer mechanism comprises a sliding table module, and a first rotor and a second rotor which are arranged on the sliding table module;

and suckers are arranged at the lower ends of the upper plate surfaces of the first rotor and the second rotor.

Unreel and draw membrane mechanism including unwinding device, cutting device, stretching device and piece mould conveyer, unreel and draw membrane mechanism and set up at the front end towards hole mechanism.

3. The automatic battery cell film coating machine according to claim 1, wherein the pit punching mechanism comprises a mold, an upper servo motor, a lower servo motor and a top mold cylinder, the upper servo motor drives an upper mold core to move up and down, the lower servo motor drives a lower mold core to move up and down, a protrusion is arranged on the lower end surface of the upper mold core, and a groove is arranged on the upper end surface of the lower mold core;

the battery cell carrying mechanism comprises a sliding table module, a carrying sliding table I and a carrying sliding table II, wherein the carrying sliding table I and the carrying sliding table II are arranged on the sliding table module; the lower ends of the upper plate surfaces of the conveying sliding table I and the conveying sliding table II are provided with suckers;

the battery cell transferring mechanism I comprises a moving module and a material picking device arranged on the moving module;

the material picking device is composed of a servo motor, a connecting plate and a material picking plate, a sucker is arranged on the front lower end face of the material picking plate, and the servo motor can drive the connecting plate and the material picking plate to move up and down.

4. The automatic battery cell film coating machine according to claim 1, wherein the battery cell system further comprises a double-station or multi-station tray feeding mechanism, and the tray feeding mechanism is arranged at the front end of the hot-press forming mechanism;

the charging tray feeding mechanism comprises a lifting material platform, a tray moving device and a battery cell moving device.

5. The automatic battery cell film coating machine according to claim 1, wherein the hot-press forming mechanism comprises a lifting servo motor, a heating block and a mold;

the lower die core is fixedly arranged, the lifting servo motor drives the heating block and the upper die core to move up and down, and a groove is formed in the lower end face of the upper die core.

6. The automatic battery cell film coating machine according to claim 1, wherein the battery cell casing mechanism comprises a moving module and a suction pickup device, the suction pickup device comprises a servo motor, a lifting plate and a suction pickup plate, and a suction cup is arranged on the lower surface of the suction pickup plate;

the lug shaping mechanism is arranged between the hot-pressing forming mechanism and the clamp mechanism and comprises a cell alignment device and a lug bending device, and the cell alignment device comprises a moving module, a clamping device I, a clamping device II and a material placing table;

the clamping device I or the clamping device II comprises a lifting cylinder, a clamping jaw guide plate and a clamping jaw, and the moving module drives the clamping device and the clamping device to move in parallel; the lifting cylinder drives the clamping jaw to open and close through the driving clamping jaw guide plate;

the electrode lug bending device is composed of a bender I and a bender II, wherein the bender I or the bender II drives the bending jig to move up and down by driving a driving cylinder and the bending jig to move up and down.

7. The automatic battery cell film coating machine according to claim 1, wherein the clamp mechanism comprises a sliding table module and a clamp overturning device arranged on the sliding table module;

the overturning device comprises a servo motor, an overturning plate and a fixing plate, wherein the rotary servo motor drives the overturning plate to rotate around one end of the fixing plate.

8. The automatic battery cell film coating machine according to claim 1, wherein the die material system further comprises a double-station or multi-station top cutting mechanism, and the top cutting mechanism is arranged between the pit punching mechanism and the clamp mechanism;

the top cutting mechanism comprises a cutter set I, a cutter set II, a sliding block and a lifting cylinder;

the cutter set I and the cutter set II are respectively provided with an upper cutter and a lower cutter, the sliding block can adjust the distance between the cutter set I and the cutter set II, and the lifting cylinder drives the upper cutter to move up and down.

9. The automatic battery cell film coating machine according to claim 1, wherein the top sealing mechanism comprises a left top sealing device and a right top sealing device which are arranged in parallel and have the same structure;

the left top sealing device or the right top sealing device comprises a servo motor, a lifting cylinder, a heating block and a top sealing head;

the servo motor can adjust the distance between the left top sealing device and the right top sealing device, and the lifting servo motor can drive the heating block and the top sealing head to move up and down.

10. The automatic battery cell film coating machine according to claim 1, wherein the corner sealing mechanism comprises a left corner sealing device and a right corner sealing device which are arranged in parallel and have the same structure;

the left corner sealing device or the right corner sealing device comprises a jig, a corner sealing head, a heating block, a translation cylinder and a lifting cylinder, wherein the translation cylinder drives the corner sealing head, the heating block and the lifting cylinder to move in parallel along the set direction of the jig, and the lifting cylinder drives the corner sealing head and the heating block to move up and down.

11. The automatic battery cell film coating machine according to claim 1, wherein the side sealing mechanism comprises a traverse platform and a side sealing device;

the transverse moving platform comprises a transverse moving module and a jig platform arranged on the transverse moving module, the side sealing device comprises a side sealing head, a heating block and a servo motor,

the jig platform is driven by the transverse moving module to move in parallel, and the side end enclosure and the heating block are driven by the servo motor to move up and down.

12. The automatic battery cell film coating machine according to claim 1, wherein the battery cell transfer mechanism II comprises a traverse module, and a material pickup device I and a material pickup device II which are arranged in parallel and have the same structure on the traverse module; the material picking device I or the material picking device II comprises a lifting cylinder, a connecting plate and a material picking block, a sucking disc is arranged at the lower end of the material picking block, and the lifting cylinder drives the connecting plate and the material picking block to move up and down;

the side cutting mechanism comprises a lifting cylinder, an upper cutter and a lower cutter, the lower cutter is fixedly arranged, and the lifting cylinder drives the upper cutter to move up and down.

13. The automatic battery cell film coating machine of claim 1, wherein the die material battery cell coating system further comprises an insulation testing mechanism with double stations or multiple stations, and the insulation testing mechanism is arranged at the rear end of the side cutting mechanism;

the insulation testing mechanism comprises a turnover device and a testing device.

14. The automatic battery cell film coating machine according to claim 1 or 13, wherein the mold material battery cell film coating system further comprises a code spraying mechanism with two or more stations, the code spraying mechanism is arranged at the rear end of the insulation testing mechanism, and the code spraying mechanism is composed of two code spraying devices which are arranged oppositely.