Automatic film wrapping machine for battery cell

Abstract

The application discloses an automatic film wrapping machine for battery cell. The machine has double-station setting and can be provided with multiple stations based on the double-station setting. The automatic film wrapping machine for battery cell is composed of a die material system, a battery cell system and a die material and battery cell wrapping system. The die material system comprises a film transfer mechanism, a pit punching mechanism and a film unwinding and pulling mechanism. The battery cell system comprises a battery cell carrying mechanism, a hot-press forming mechanism, a battery cell shell entering mechanism and a tab shaping mechanism. The die material and battery cell wrapping system comprises a clamp mechanism, a battery cell transfer mechanism I, a top sealing mechanism, a corner sealing mechanism, a side sealing mechanism, a battery cell transfer mechanism II and a side cutting mechanism. The die material system, the battery cell system and the die material and battery cell wrapping system are provided with double stations or multiple stations. As a preferred solution, the automatic film wrapping machine for battery cell further comprises a top cutting mechanism, a material disc feeding mechanism, an insulation testing mechanism and a code spraying mechanism.

Description

I. Technical Field An automatic battery cell coating machine relates to a battery cell film coating equipment, and more particularly to a battery cell film coating equipment with dual-station or multi-station automation. II. Background Technology Currently, lithium-ion batteries and polymer batteries are widely used in the 3C industry. The process of wrapping the battery cells with insulating film is particularly important, as the insulation and sealing performance of the wrapped cells directly affects the battery's lifespan and safety. Existing cell wrapping technologies all employ a single-station assembly line model with segmented processes. The cell wrapping operation involves nearly twenty steps, and this segmented single-station assembly line suffers from disadvantages such as large footprint, a large number of operators, and high energy consumption.

[0001] To overcome the above shortcomings, some manufacturers have developed a single-station automatic cell wrapping machine that integrates all processes of cell wrapping. However, this equipment can only wrap one cell at a time, resulting in low production capacity. The corner sealing and side sealing processes are combined, limiting the possibility of wrapping two or more cells. III. Summary of the Invention To address the aforementioned problems, this invention provides an automatic battery cell coating machine. It not only features a dual-station setup, It can also be configured with multiple workstations based on its dual-workstation setup. This invention provides an automatic battery cell coating machine comprising a mold material system, a battery cell system, and a mold material-battery cell coating system.

[0002] The mold material system includes a film transfer mechanism, a punching mechanism, and an unwinding and stretching mechanism. The battery cell system includes a battery cell handling mechanism, a hot pressing mechanism, a battery cell housing mechanism, and a tab shaping mechanism. The mold material battery cell coating system includes a clamping mechanism, a battery cell transfer mechanism I, a top sealing mechanism, a corner sealing mechanism, a side sealing mechanism, a battery cell transfer mechanism II, and a side cutting mechanism. The mold material system, the battery cell shaping and processing system, and the mold material battery cell integrated coating system are all configured with dual or multi-station setups.

[0003] Specifically, the membrane transfer mechanism includes a slide module and a first mover and a second mover disposed on the slide module. The unwinding and stretching mechanism includes an unwinding device, a cutting device, a stretching device, and a sheet film transport device.

[0004] Specifically, the punching mechanism includes a mold, an upper servo motor, a lower servo motor, and a top mold cylinder. The cell handling mechanism includes a slide module and two handling slides mounted on the slide module. The cell transfer mechanism includes a moving module and a picking device mounted on the moving module.

[0005] Specifically, the hot pressing forming mechanism includes a lifting servo motor, a heating block, and a mold.

[0006] Specifically, the battery cell insertion mechanism includes a moving module and a suction device.

[0007] Specifically, the clamping mechanism includes a slide module and a flipping clamping device disposed on the slide module.

[0008] Specifically, the top sealing mechanism includes two parallel and identically structured left top sealing devices and a right top sealing device. Device.

[0009] Specifically, the corner sealing mechanism includes a left corner sealing device and a right corner sealing device arranged side by side and having the same structure.

[0010] Specifically, the side sealing mechanism includes a transverse platform and a side sealing device.

[0011] Specifically, the cell transfer mechanism II includes a transverse transfer module and two parallel, identically structured components arranged in a transverse direction. Two material picking devices on the moving module assembly.

[0012] Specifically, the side-cutting mechanism includes a lifting cylinder, an upper cutter, and a lower cutter.

[0013] The present invention provides a mold material system for an automatic battery cell coating machine, which also includes a top cutting mechanism with dual or multiple stations, and the top cutting mechanism is set between the punching mechanism and the clamping mechanism.

[0014] Specifically, the top cutting mechanism includes a cutter group I, a cutter group II, a sliding block, and a lifting cylinder.

[0015] Specifically, the tab shaping mechanism is located between the hot pressing forming mechanism and the clamping mechanism, and the tab shaping mechanism includes a cell alignment device and a tab bending device.

[0016] The present invention provides an automatic battery cell coating machine. The battery cell system further includes a material tray feeding mechanism with dual or multiple stations, which is located at the front end of the hot pressing forming mechanism.

[0017] Specifically, the material tray feeding mechanism includes a lifting platform, a tray transfer device, and a battery cell transfer device.

[0018] This invention provides an automatic battery cell coating machine. The battery cell coating system further includes dual-station or multi-station components. An insulation testing mechanism is provided at the rear end of the side-cutting mechanism. Specifically, the insulation testing mechanism comprises a flipping device and a testing device.

[0019] This invention provides an automatic battery cell coating machine. The battery cell coating system further includes dual-station or multi-station components. The inkjet printing mechanism is positioned at the rear end of the insulation testing mechanism.

[0020] Specifically, the coding mechanism consists of two coding devices arranged opposite each other.

[0021] This invention provides an automatic cell coating machine, the beneficial effect of which is to automatically coat the cells during the battery production process. The entire process of insulating film wrapping is integrated into one machine, enabling fully automated production from front-end insulating film cutting to final testing and coding. This reduces production costs and the machine's footprint. The dual-station or multi-station design of each mechanism of the wrapping machine increases equipment capacity by 33% while reducing costs and energy consumption. IV. Description of the attached drawings Figure 1 A three-dimensional isometric view (I) of the overall structure of an automatic battery cell coating machine according to the present invention. Figure 2 This is a three-dimensional isometric view of the membrane transfer mechanism A and the cratering mechanism B of an automatic battery cell coating machine according to the present invention. Figure 3 This invention provides a three-dimensional isometric view of the following components: a film transfer mechanism (C), a hot pressing mechanism (D), and a battery cell insertion mechanism (E) for an automatic battery cell coating machine. Figure 4 This is a three-dimensional isometric view of the membrane transfer mechanism of an automatic battery cell coating machine according to the present invention. Figure 5 This is a three-dimensional isometric view of the upper and lower mold cores of the hot pressing forming mechanism D of the automatic battery cell coating machine of the present invention. Figure 6 This is a three-dimensional isometric view of the clamping mechanism F and the battery cell insertion mechanism E of an automatic battery cell coating machine according to the present invention. Figure 7 This is a three-dimensional isometric drawing of the top sealing mechanism H of an automatic cell wrapping machine according to the present invention. Figure 8 This is a three-dimensional isometric view of the corner sealing mechanism I of an automatic battery cell wrapping machine according to the present invention. Figure 9 This is a three-dimensional isometric view of the side sealing mechanism of an automatic battery cell coating machine according to the present invention. Figure 10 IIK is a three-dimensional isometric drawing of the cell transfer mechanism of an automatic cell coating machine according to the present invention. Figure 11 This is a three-dimensional isometric view of the side-cutting mechanism L of an automatic battery cell coating machine according to the present invention. Figure 12 This is a three-dimensional isometric view (II) of the overall structure of an automatic battery cell coating machine according to the present invention. Figure 13 A three-dimensional isometric view (I) of the top cutting mechanism M of an automatic battery cell coating machine according to the present invention. Figure 14A three-dimensional isometric view (II) of the top cutting mechanism M of an automatic battery cell coating machine according to the present invention. Figure 15 This is a three-dimensional isometric view of the unwinding and stretching mechanism of an automatic battery cell coating machine according to the present invention. Figure 16 This is a three-dimensional isometric view of the tab bending device N2 of the automatic battery cell coating machine tab shaping mechanism N of the present invention. Figure 17 This is a three-dimensional isometric view of the cell alignment device N1 of the automatic cell coating machine ear-shaping mechanism N of the present invention. Figure 18 This is a three-dimensional isometric view of the material tray feeding mechanism of an automatic battery cell coating machine according to the present invention. Figure 19 A three-dimensional isometric view of the insulation testing mechanism of an automatic cell coating machine according to the present invention. Figure 20 This is a three-dimensional isometric view of the inkjet printing mechanism of an automatic battery cell coating machine according to the present invention. Figure 21 This is a process flow diagram of an automatic battery cell coating machine according to the present invention. V. Detailed Implementation Methods The overall structure of the automatic battery cell coating machine of the present invention is as follows (Example 1) Figure 1 As shown, the coating machine consists of a mold material system 1, a battery cell system 2, and a mold material and battery cell coating system 3. The mold material system 1 includes a film transfer mechanism A, a punching mechanism B, and an unwinding and pulling mechanism O. The battery cell system 2 includes a battery cell transport mechanism C, a hot-pressing forming mechanism D, a battery cell housing mechanism E, and a tab shaping mechanism N. The mold material and battery cell coating system 3 includes a clamping mechanism F, a battery cell transfer mechanism IG, a top sealing mechanism H, a corner sealing mechanism 1, a side sealing mechanism J, a battery cell transfer mechanism IIK, and a side-cutting mechanism L. The mold material system 1, the battery cell shaping and processing system 2, and the mold material and battery cell integrated coating system 3 are all configured with dual or multi-station setups.

[0022] Specifically, Figure 2 The membrane transfer mechanism A shown includes a slide module A1 and a first mover A2 and a second mover A3 disposed on the slide module A1. A suction cup a is disposed at the lower end of the upper plate surface Aa of the first mover A2 and the second mover A3. The reciprocating motion mode of the first mover A2 and the second mover A3 on the slide module A1 can be set to a linked or non-linked state. Figure 2 The upper plate surface Aa of the first mover A2 and the second mover A3 shown is a dual-station setting for simultaneously picking up two insulating films. By increasing the lateral length of the upper plate surface Aa, it can be set to a multi-station mode for picking up several insulating films.

[0023] Specifically, Figure 2The punching mechanism B shown includes a mold B1, an upper servo motor B2, a lower servo motor B3, and a top mold cylinder B4. The upper servo motor B2 drives the upper mold core B1a to move up and down, and the lower servo motor B3 drives the lower mold core B1b to move up and down. The upper mold core B1a is provided with a protrusion Ba, and the lower mold core B1b is provided with a groove Bb. Figure 2 The upper die B1a and lower die B1b shown are a dual-station setting for simultaneously stamping two insulating films. By lengthening the lateral length of the upper die B1a and lower die B1b, a multi-station mode for stamping several insulating films can be configured.

[0024] Specifically, Figure 3 Figure 4 The battery cell handling mechanism C shown includes a slide module C1 and handling slides C2 and C3 mounted on the slide module C1. A suction cup a is provided at the lower end of the upper plate surface Ca of the handling slides C2 and C3. The reciprocating motion mode of the handling slides C2 and C3 on the slide module C1 can be set to either a linked or non-linked state. Figure 3 The upper plate surface Ca of the conveying slides C2 and C3 shown is a dual-station setting for simultaneously picking up two battery cells. By extending the lateral length of the upper plate surface Aa, it can be set to a multi-station mode for picking up several battery cells.

[0025] Specifically, Figure 3 Figure 5 The hot pressing forming mechanism D shown consists of a lifting servo motor D1, a heating block D2, and a mold D3. The lower mold core D3b is fixed. The lifting servo motor D1 drives the heating block D2 and the upper mold core D3a to move up and down. A groove Da is provided on the lower end surface of the upper mold core D3a. Figure 5 The upper mold core D3a and lower mold core D3b shown are a dual-station setting for simultaneously hot-pressing two battery cells. By increasing the lateral length of the upper mold core D3a and lower mold core D3b, it can be set to a multi-station mode for simultaneously stamping several insulating films.

[0026] Specifically, Figure 6 The cell insertion mechanism E shown includes a moving module E1 and a suction device E2. The suction device E2 includes a servo motor Ea, a lifting plate Eb, and a suction plate EC. A suction cup a is provided on the lower surface of the suction plate EC. The suction device E2 can move horizontally on the sliding module E1. The servo motor Ea can drive the lifting plate Eb and the suction plate EC to move up and down. Figure 6 The lifting plate Eb shown is a dual-station setting for simultaneously picking up two battery cells. By lengthening the lateral length of the lower plate of the lifting plate Eb and adding several pickup plates EC, it can be set to a multi-station mode for simultaneously picking up several insulating films.

[0027] Specifically, Figure 6The clamping mechanism F shown includes a slide module F1 and a flipping clamping device F2 disposed on the slide module F1. The flipping clamping device F2 includes a servo motor Fa, a folding plate Fb, and a fixed plate Fc. The servo motor Fa drives the folding plate to rotate around one end of the fixed plate Fc around Fb. The flipping clamping device F2 can move horizontally on the slide module F1. Figure 6 The folding plate Fb and the fixing plate Fc shown are a dual-station setting for simultaneously folding two insulating films. By increasing the lateral length of the folding plate Fb and the fixing plate Fc, it can be set to a multi-station mode for simultaneously folding several insulating films.

[0028] Specifically, Figure 1 Figure 9 The cell transfer mechanism IG shown includes a moving module G1 and a picking device G2 mounted on the moving module G1. The picking device G2 includes a servo motor Ga, a connecting plate Gb, and a picking plate Gc. The lower front end face of the picking plate Gc is provided with a suction cup a. The servo motor Ga can drive the connecting plate Gb and the picking plate Gc to move up and down. The picking device G2 can move horizontally on the moving module G1. Figure 7 The connecting plate Gb and the pickup plate Gc shown are a dual-station setup for simultaneously picking up two battery cells. By increasing the lateral length of the connecting plate Gb and adding the pickup plate Gc, it can be set up as a multi-station mode for simultaneously picking up several battery cells.

[0029] Specifically, Figure 7 The top sealing mechanism H shown includes two parallel and identically structured left top sealing devices H1 and right top sealing devices H2. Each of the left top sealing devices H1 or right top sealing devices H2 includes 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. Figure 8 The two parallel top sealing devices H1 and H2 shown are a dual-station setup that can simultaneously seal two battery cell films. Adding several top sealing devices in parallel can create a multi-station mode that can simultaneously seal several battery cell films.

[0030] Specifically, Figure 8 The corner sealing mechanism 1 shown includes a left corner sealing device 11 and a right corner sealing device 12 arranged side by side and having the same structure. Each corner sealing device 11 or right corner sealing device 12 includes a fixture 1a, a corner sealing head 1b, a heating block 1c, a translation cylinder 1d, and a lifting cylinder 1e. The translation cylinder 1d drives the corner sealing head 1b, the heating block 1c, and the lifting cylinder 1e to move parallel to each other along a predetermined direction of the fixture 1a, while the lifting cylinder 1e drives the corner sealing head 1b and the heating block 1c to move up and down. Figure 9The two side-by-side corner sealing devices 11 and 12 shown are a dual-station setup that can simultaneously corner seal two battery cell films. Adding several corner sealing devices in parallel can be configured into a multi-station mode that can simultaneously corner seal several battery cell films.

[0031] Specifically, Figure 9 The side-sealing mechanism J shown includes a transverse platform J1 and a side-sealing device J2. The transverse platform J1 includes a transverse module Ja and a fixture platform Jb disposed on the transverse module Ja. The side-sealing device J2 includes a side-sealing head Jc, a heating block Jd, and a servo motor Je. The transverse module Ja drives the fixture platform Jb to move parallel, and the servo motor Je drives the side-sealing head Jc and the heating block Jd to move up and down. Figure 10 The transverse platform J1 and the side sealing device J2 shown are a dual-station setup that can simultaneously side seal two battery cell films. The transversely extended fixture platform Jb, the moving side sealing head Jc, and the heating block Jd can be configured as a multi-station mode that can simultaneously side seal several battery cell films.

[0032] Specifically, Figure 10 The cell transfer mechanism IIK shown includes a transverse module K1 and two parallel, structurally identical picking devices K2 and K3 mounted on the transverse module K1. Each picking device K2 or K3 includes a lifting cylinder Ka, a connecting plate Kb, and a picking block Kc. A suction cup a is located at the lower end of the picking block Kc. The lifting cylinder Ka drives the connecting plate Kb and the picking block Kc to move up and down. The movement mode of the picking devices K2 and K3 on the transverse module K1 can be set to either a linked or non-linked state. Figure 10 The material picking device K2 or K3 shown is a dual-station setting that can move two battery cells at the same time. By horizontally lengthening the connecting plate Kb and adding several material picking blocks Kc, it can be set to a multi-station mode that can move several battery cells at the same time.

[0033] Specifically, Figure 11 The side-cutting mechanism L shown includes a lifting cylinder L1, an upper cutter L2, and a lower cutter L3. The lower cutter L3 is fixed, and the lifting cylinder L1 drives the upper cutter L2 to move up and down. Figure 12 The upper cutter L2 and lower cutter L3 shown are a dual-station setup that can simultaneously side-cut two battery cell films. Extending the upper cutter L2 and lower cutter L3 can be configured into a multi-station mode that can simultaneously side-cut several battery cell films.

[0034] In the operation of the automatic cell wrapping machine described in the above embodiment 1, the mold material system 1 sometimes has problems such as uneven cutting or inconsistent size of the insulating film edge, or wrinkles appearing on the edge after being punched by the punching mechanism B.

[0035] To solve this technical problem, the present invention also provides a second embodiment of the automatic cell coating machine.

[0036] Specifically,Figures 12-14 The mold system 1 of the automatic battery cell coating machine shown also includes a top-cutting mechanism M, which is disposed between the punching mechanism B and the clamping mechanism F. The top-cutting mechanism M includes a cutter group IM1, a cutter group IIM2, a sliding block M3, and a lifting cylinder M4. The cutter group IM1 and the cutter group IIM2 are respectively provided with an upper cutter Ma and a lower cutter Mb. The sliding block M3 can adjust the distance between the cutter group IM1 and the cutter group IIM2. The lifting cylinder M4 drives the upper cutter Ma to move up and down. Figure 13 The upper cutter Ma and lower cutter Mb shown are a dual-station setup that can simultaneously cut two insulating films. Extending the upper cutter Ma and lower cutter Mb can enable a multi-station mode that can simultaneously cut several insulating films.

[0037] Specific Figure 12 Figure 15 As shown, the unwinding and stretching mechanism O is located at the front end of the punching mechanism B. The unwinding and stretching mechanism O includes an unwinding device 01, a cutting device 02, a stretching device 03, and a sheet mold transport device 04. Figure 16 The film plate 04a on the mold transport device 04 shown is a dual-station setting for simultaneously cutting and transporting two insulating films. Adding several film plates 04a can set it to a multi-station mode for simultaneously cutting and transporting several insulating films.

[0038] Specific Figure 3 , Figure 12 , Figure 16 and Figure 17 As shown, the tab forming mechanism N is located between the hot pressing forming mechanism D and the clamping mechanism F. The tab forming mechanism N includes a cell alignment device N1 and a tab bending device N2. The cell alignment device N1 includes a moving module N1a, a clamping device IN1b, a clamping device IN1c, and a material placement table N1d. The clamping device IN1b or clamping device IN1c includes a lifting cylinder Na, a jaw guide plate Nb, and a jaw Nc. The moving module N1a drives the clamping devices N1b and N1c to move in parallel. The lifting cylinder Na drives the jaw guide plate Hb to open and close the jaw Hc. The tab bending device N2 consists of a bending device IN2a and a bending device IN2b. The bending device IN2a or bending device IN2b includes a driving cylinder Nd and a bending fixture Ne. The driving cylinder Nd drives the bending fixture Ne to move up and down. Figure 16 and Figure 17 The shown cell alignment device N1 and tab bending device N2 are dual-station setups that simultaneously align two cells and bend their tabs. By adding several clamping devices and laterally lengthening the material placement table N1d, it can be set up as a multi-station alignment device that simultaneously aligns several cells. By adding several bending devices, it can be set up as a multi-station bending device that simultaneously bends the tabs of several cells.

[0039] In the automatic battery cell coating machine provided in Embodiment 1 or Embodiment 4 above, the front-end battery cells of the battery cell system 2 need to be placed onto the coating machine manually or by other devices, and then transported by the battery cell transport mechanism C to the mold of the hot pressing forming mechanism D for hot pressing forming. To speed up the transport of the front-end battery cells of the battery cell system 2 in the automatic battery cell coating machine provided by this invention, reduce the battery cell loading process, and improve the accuracy of the hot pressing forming of the battery cells, this invention also provides Embodiment 5 of the automatic battery cell coating machine.

[0040] Specifically, Figure 18 The battery cell system 2 shown also includes a material tray loading mechanism P with dual or multi-station configuration. The material tray loading mechanism P includes a lifting platform P1, a tray transfer device P2, and a battery cell transfer device P3. The lifting platform P1 includes a lifting servo motor Plaa, a battery cell loading component P1b, and a tray return component P1c. The servo motor P1a drives the battery cell loading component P1b and the tray return component P1c to move up and down. The tray transfer device P2 includes a translation module P2a, a moving connecting plate P2b, a lifting cylinder P2c, and two pickup plates P2d. A suction cup a is provided on the lower end face of the pickup plate P2d. The moving connecting plate P2b drives the lifting cylinder P2c and the two pickup plates P2d to move horizontally on the translation module P2a. The lifting cylinder P2c drives the pickup plates P2d to move up and down. The cell transfer device P3 includes a rotating component P3a, a lifting cylinder IIP3b, a rotating connecting plate P3c, and a picking component P3d. A suction cup a is provided at the lower end of the picking component P3d. The lifting cylinder IIP3b can drive the rotating component P3a, the rotating connecting plate P3c, and the picking component P3d to move up and down. The rotating component P3a can drive the picking component P3d to rotate around the rotating connecting plate P3c. Figure 19 The feeding mechanism P is a dual-station setting for feeding two battery cells simultaneously. By adding several picking plates P2d, it can be configured as a multi-station bending device that simultaneously bends the tabs of several battery cells.

[0041] After completing each process in the above embodiments, the coated cells need to be removed from the machine for insulation testing. In order to reduce the testing process of coated cells and realize integrated testing, the present invention also provides an embodiment six of an automatic cell coating machine equipped with an insulation testing mechanism.

[0042] Specifically, Figure 19The shown molded cell coating system 3 further includes an insulation testing mechanism Q with dual or multiple workstations, which is located at the rear end of the side-cutting mechanism L. The insulation testing mechanism Q comprises a flipping device Q1 and a testing device Q2. The flipping device Q1 includes a translation module IQ1a, a servo motor Q1b, a flipping component Q1c, and two gripping components Q1d. The gripping component Q1d consists of a finger-grip cylinder Qa and a gripper Qb. The servo motor Q1b, the flipping component Q1c, and the gripping component Q1d can move horizontally on the translation module IQ1a. The servo motor Q1b can drive the flipping component Q1c and the gripping component Q1d to flip 90 degrees. The testing device Q2 includes two identical detection components Q2a and Q2b and a translation module Q2cII. The translation module IQ2c can drive the detection components Q2a and Q2b to move horizontally along the direction set by the translation module Q2c. Figure 19 The insulation testing mechanism Q shown is a dual-station setting for testing two battery cells simultaneously. After adding several gripping components Q1d to the flipping device Q1 and several detection components to the testing device Q2, it can be set to a multi-station mode for testing several battery cells simultaneously.

[0043] To mark and distinguish the tested battery cells, the present invention also provides an embodiment seven of an automatic battery cell coating machine equipped with a coding mechanism.

[0044] Specifically, Figure 20 The molded cell coating system 3 shown also includes a coding mechanism R with dual or multiple stations; the coding mechanism R is located at the rear end of the insulation testing mechanism Q, and the coding mechanism R consists of two coding devices R1 and R2 arranged opposite to each other.

[0045] The automatic cell coating machine of the present invention has the following overall production process flow. This process flow is illustrated using a dual-station coating machine as an example and is not intended to limit the present invention.

[0046] (i) The production processes of the membrane material system 1 and the battery cell system 2 are carried out simultaneously.

[0047] la) Figure 15 Figure 21 An insulating film roll is placed on the unwinding device 01 of the unwinding and stretching mechanism 0 shown. The insulating film roll is pulled out by the stretching device 03. The pulled-out insulating film is cut into two insulating film sheets of equal width by the cutting device 02. The insulating film sheets are positioned by adjusting the spacing of the sheet mold transport device 04 and transported to the underside of the first mover A2 of the film transfer mechanism A. (This production process is the preferred embodiment of the coating machine of the present invention.) 1b) Figure 2 Figure 21The suction cup a at the lower end of the first mover A2 of the membrane transfer mechanism A shown in the figure adsorbs and transports two insulating films to the mold B1 of the punching mechanism B for punching. After punching is completed, the second mover A3 of the membrane transfer mechanism A removes the film.

[0048] 1c) Figure 2 Figure 13 Figure 21 The second actuator A3 of the film transfer mechanism A, as shown, moves the removed insulating film to the top cutting mechanism M to remove the excess portions at the top and bottom ends of the two insulating films. (This production process is a preferred embodiment of the coating machine of this invention.) 1d) Figure 6 Figure 21 The second mover A3 of the membrane transfer mechanism A transports the two cut insulating films to the fixed plate Fc of the clamping mechanism F, and the membrane transfer mechanism A returns to the initial position.

[0049] 2a) Figure 18 Figure 21 The feeding mechanism P shown uses a lifting platform P1, a transferring device P2, and a cell transferring device P3 to align and position two battery cells from the feeding tray and move them to the placement platform FG. (This production process is the preferred embodiment of the coating machine of this invention.) 2b) Figure 3 Figure 4 Figure 21 The two battery cells on the feeding platform FG shown are attracted and conveyed by the battery cell transport mechanism C and the hot pressing forming mechanism D for hot pressing and shaping. The transport slide C2 returns to its initial position. After shaping, the battery cells are taken out by the transport slide C3.

[0050] 2c) Figure 3 Figure 17 Figure 21 The cell transport mechanism C, shown, uses a transport slide C3 to transport the two shaped cells to the cell alignment device N1 of the tab shaping mechanism N for repositioning and alignment. (This production process is the preferred embodiment of the coating machine of this invention, in embodiment four.) 2d) Figure 3 Figure 16 Figure 21 The two battery cells, after being positioned and aligned, are moved by the suction device E2 of the battery cell insertion mechanism E to the tab bending device N2 of the battery cell alignment device N1 to bend the battery cell tabs. (This production process is the preferred embodiment of the coating machine of this invention, in Example 4.) 2e) Figure 6 Figure 21 The suction device E2 of the cell loading mechanism E transports the cell after the tabs are bent to the grooves in the insulating film on the fixing plate Fc of the clamping mechanism F. The folding plate Fb of the clamping mechanism F folds the two insulating films.

[0051] (II) Molded Cell Coating System (3) 3a) Figure 9 Figure 7 Figure 21 The picking device G2 of the cell transfer mechanism IG shown takes out the two folded cell core covers and moves them to the top sealing mechanism H to perform heat-press sealing on the tab ends of the cell core covers.

[0052] 3b) Figure 9 Figure 8 Figure 21 The picking device G2 of the cell transfer mechanism IG shown moves the two cell core covers that have been heat-sealed at the tab end to the corner sealing mechanism I to perform heat-sealing on the lower left corner of the cell core covers.

[0053] 3c) Figure 9 Figure 21 The pick-up device G2 of the cell transfer mechanism IG moves the corner-sealed cell core cover to the right side of the side sealing mechanism J. The lateral movement module Ja of the side sealing mechanism J drives the fixture platform Jb to move towards the cell transfer mechanism I. The pick-up device G2 of the cell transfer mechanism IG places two cell core covers onto the fixture platform Jb. The lateral movement module Ja drives the fixture platform Jb back to its initial position, and the side sealing device J2 performs a heat-sealing process on the right side ends of the two cell core covers.

[0054] 3d) Figure 10 Figure 11 Figure 21 The two electro-film core covers, which have been side-sealed, are moved by the picking device K2 of the electro-film transfer mechanism IIK to the side-cutting mechanism L to remove the excess part on the right side of the electro-film core cover.

[0055] 3d) Figure 19 Figure 21 The two side-cut electrolytic core coatings shown are moved to the insulation testing mechanism Q position by the pick-up device K3 of the core transfer mechanism IIK. The detection components Q2a and Q2b of the testing device Q2 move towards the pick-up device K3 under the drive of the translation module IIQ2c. After the two detection components Q2a and Q2b are in position, the pick-up device K3 places the two electrolytic core coatings on the detection components Q2a and Q2b, and then moves back to its initial position. The detection components Q2a and Q2b then return to their initial positions to perform insulation testing on the electrolytic core coatings. After the test is completed, the detection components Q2a and Q2b move back to the position where they receive the two electrolytic core coatings. (This production process is the preferred embodiment of the coating machine of this invention, embodiment six.) 3e) Figure 19 Figure 21The two electro-film core covers, after completing the insulation test, are gripped by the flipping device Q1's gripping assembly Q1d. After being gripped, the electro-film core covers are flipped 90 degrees by the flipping assembly Q1c to a vertical position. Driven by its translation module IQ1a, the flipping device Q1 moves the gripped electro-film core covers towards the coding mechanism R. Once the two electro-film core covers are between the two coding devices R1 and R2, the coding devices can simultaneously code both sides of each electro-film core cover during movement. After coding is completed, the two electro-film core covers are removed manually or by other means, and the flipping device Q1 moves back to its initial position.

[0056] The above is a detailed description of the automatic battery cell coating machine solution provided by the embodiments of the present invention. For those skilled in the art, based on the ideas of the embodiments of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention, and any changes made according to the design concept of the present invention are within the protection scope of the present invention.

Claims

1. An automatic battery cell wrapping machine, characterized in that, The coating machine consists of a mold material system, a battery cell system, and a mold material and battery cell coating system. The molding system includes a film transfer mechanism, a punching mechanism, and an unwinding and pulling mechanism; The battery cell system includes a battery cell handling mechanism, a hot pressing forming mechanism, a battery cell casing mechanism, and a tab shaping mechanism. The molded battery cell coating system includes a clamping mechanism, a battery cell transfer mechanism I, a top sealing mechanism, a corner sealing mechanism, a side sealing mechanism, a battery cell transfer mechanism II, and a side cutting mechanism; The mold material system, the battery cell shaping and processing system, and the mold material and battery cell integrated coating system are all set up with dual or multi-station configurations; The membrane transfer mechanism includes a slide module and a first mover and a second mover disposed on the slide module; Suction cups are provided at the lower ends of the upper plates of the first and second actuators; The unwinding and stretching mechanism includes an unwinding device, a cutting device, a stretching device, and a sheet mold transport device. The unwinding and stretching mechanism is located at the front end of the punching mechanism. The punching mechanism includes a mold, an upper servo motor, a lower servo motor, and a top mold cylinder. The upper servo motor drives the upper mold core to move up and down, and the lower servo motor drives the lower mold core to move up and down. The lower end face of the upper mold core is provided with a protrusion, and the upper end face of the lower mold core is provided with a groove. The cell handling mechanism includes a slide module and two handling slides I and II disposed on the slide module; suction cups are provided at the lower end of the upper surface of the handling slides I and II. The cell transfer mechanism I includes a moving module and a picking device disposed on the moving module; The material pickup device consists of a servo motor, a connecting plate, and a material pickup plate. The lower front end face of the material pickup plate is equipped with a suction cup. The servo motor can drive the connecting plate and the material pickup plate to move up and down. The battery cell system also includes a material tray feeding mechanism with dual or multiple stations, which is located at the front end of the hot pressing forming mechanism. The material tray feeding mechanism includes a lifting platform, a tray transfer device, and a battery cell transfer device; The hot pressing forming mechanism includes a lifting servo motor, a heating block, and a mold; The lower mold core is fixed, and the lifting servo motor drives the heating block and the upper mold core to move up and down. A groove is provided on the lower end surface of the upper mold core. The battery cell insertion mechanism includes a moving module and a suction device. The suction device includes a servo motor, a lifting plate, and a suction plate. The lower surface of the suction plate is provided with a suction cup. The electrode shaping mechanism is located between the hot pressing forming mechanism and the clamping mechanism. The electrode shaping mechanism includes a cell alignment device and an electrode bending device. The cell alignment device includes a moving module, clamping device I, clamping device II and a material placement platform. Clamping device I or clamping device II includes a lifting cylinder, a gripper guide plate, and grippers. The moving module drives the clamping device and the clamping device to move in parallel. The lifting cylinder drives the gripper guide plate to open and close the grippers. The electrode bending device consists of a bending device I and a bending device II. The bending device I or the bending device II includes a drive cylinder and a bending fixture. The drive cylinder drives the bending fixture to move up and down. The cell transfer mechanism II includes a transverse module and two parallel and identical picking devices I and II arranged on the transverse module. Picking device I or picking device II includes a lifting cylinder, a connecting plate and a picking block. The lower end of the picking block is provided with a suction cup. The lifting cylinder drives the connecting plate and the picking block to move up and down. The side-cutting mechanism includes a lifting cylinder, an upper cutter, and a lower cutter. The lower cutter is fixed, and the lifting cylinder drives the upper cutter to move up and down.

2. The automatic cell wrapping machine according to claim 1, characterized in that, The clamping mechanism includes a slide module and a flipping clamping device disposed on the slide module; The flipping clamp device includes a servo motor, a flipping plate, and a fixed plate. The servo motor drives the flipping plate to rotate around one end of the fixed plate.

3. The automatic cell wrapping machine according to claim 1, characterized in that, The mold material system also includes a top-cutting mechanism with two or more stations, which is located between the punching mechanism and the clamping mechanism. The top cutting mechanism includes cutter assembly I, cutter assembly II, sliding block and lifting cylinder; Cutting blade assembly I and cutting blade assembly II are respectively equipped with an upper cutting blade and a lower cutting blade. The sliding block can adjust the distance between cutting blade assembly I and cutting blade assembly II. The lifting cylinder drives the upper cutting blade to move up and down.

4. The automatic cell wrapping machine according to claim 1, characterized in that, The top sealing mechanism includes two parallel and identically structured left and right top sealing devices; The left or right top sealing device includes a servo motor, a lifting cylinder, a heating block, and a top sealing head; The servo motor can adjust the distance between the left and right top sealing devices, and the lifting servo motor can drive the heating block and the top sealing head to move up and down.

5. The automatic cell wrapping machine according to claim 1, characterized in that, The corner sealing mechanism includes a left corner sealing device and a right corner sealing device arranged side by side and having the same structure; The left or right corner sealing device includes a fixture, a corner sealing head, a heating block, a translation cylinder, and a lifting cylinder. The translation cylinder drives the corner sealing head, the heating block, and the lifting cylinder to move parallel to each other along the set direction of the fixture, and the lifting cylinder drives the corner sealing head and the heating block to move up and down.

6. The automatic cell wrapping machine according to claim 1, characterized in that, The side sealing mechanism includes a transverse platform and a side sealing device; The transverse platform includes a transverse module and a fixture platform mounted on the transverse module. The side sealing device includes a side sealing head, a heating block, and a servo motor. The transverse module drives the fixture platform to move in parallel, while the servo motor drives the side end cap and heating block to move up and down.

7. The automatic cell wrapping machine according to claim 1, characterized in that, The molded battery cell coating system also includes an insulation testing mechanism with dual or multiple workstations, which is located at the rear end of the side cutting mechanism; The insulation testing mechanism consists of a flipping device and a testing device.

8. An automatic cell coating machine according to claim 1 or 7, characterized in that, The molded battery cell coating system also includes a coding mechanism with dual or multiple workstations. The coding mechanism is located at the rear end of the insulation testing mechanism and consists of two coding devices arranged opposite to each other.

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