CN116759626B

CN116759626B - Coating equipment and method

Info

Publication number: CN116759626B
Application number: CN202311031391.9A
Authority: CN
Inventors: 张贤根; 陶佳杨; 张霄; 周睿; 周伟伟; 季浩
Original assignee: Zhongtian Intelligent Equipment Co ltd
Current assignee: Zhongtian Intelligent Equipment Co ltd
Priority date: 2023-08-16
Filing date: 2023-08-16
Publication date: 2023-11-14
Anticipated expiration: 2043-08-16
Also published as: CN116759626A

Abstract

The application relates to the technical field of industrial equipment, aims to solve the technical problem of poor hot melting quality of a film material on an electric core, and provides film coating equipment and a film coating method. The coating equipment comprises a turntable, a bearing assembly, a film material feeding mechanism, a battery cell feeding mechanism, a bottom surface hot melting mechanism, a turnover mechanism and a top surface hot melting mechanism. The turntable is rotatably arranged. The bearing assembly comprises a bearing piece, a clamping piece, a positioning block and two pushing pieces, wherein the bearing piece is used for adsorbing the film material and bearing the battery cell, and the clamping piece is arranged on the bearing piece and used for clamping the battery cell. The film material feeding mechanism is used for placing the film material on the bearing assembly. The battery cell feeding mechanism is used for placing the battery cell on the first face. The bottom surface hot melting mechanism is used for hot melting the first surface part on the bottom surface. The turnover mechanism is used for turning over the second face to the top surface of the battery cell, and the two pushing pieces can enable the two ends of the connecting part to be attached to the two ends of the end face successively. The top surface hot melting mechanism is used for hot melting the second surface part on the top surface. The application has the beneficial effect of improving the coating quality of the film material and the battery cell.

Description

Coating equipment and method

Technical Field

The application relates to the technical field of industrial equipment, in particular to coating equipment and a coating method.

Background

In some battery production processes, a film material needs to be coated on the surface of the battery cell. The manual coating efficiency is lower, and the coating quality is also poor. Some known coating machines can realize automatic coating, but the coating precision is not high, and the film material cannot be perfectly attached to the surface of the battery cell, so that the coating quality of the film material on the surface of the battery cell is still poor.

Disclosure of Invention

The application provides coating equipment and a coating method, which are used for solving the technical problem that the coating quality of some battery cells and film materials is poor.

Embodiments of the present application are implemented as follows:

in a first aspect, the application provides a film coating device for hot-melting a film material on a battery cell, wherein the battery cell comprises a top surface and a bottom surface which are arranged at intervals along a first direction, two side surfaces which are arranged at intervals along a second direction, and an end surface and an end cover which are arranged at intervals along a third direction, the top surface, the bottom surface, the side surfaces, the end surface and the end cover are sequentially connected to form the battery cell, the film material comprises a first surface part, a second surface part and a connecting part, the first surface part is used for being attached to the top surface, the second surface part is used for being attached to the bottom surface, the connecting part is connected to the first surface part and the second surface part and is used for being attached to the end surface, and the film coating device comprises a turntable, a bearing component, a film material feeding mechanism, a battery cell feeding mechanism, a bottom surface hot-melting mechanism, a turnover mechanism and a top surface hot-melting mechanism. The turntable is rotatably arranged. The bearing component is connected to the turntable and can move to the film material feeding station, the battery cell feeding station, the bottom surface hot melting station and the top surface hot melting station under the drive of the turntable, the bearing component comprises a bearing piece, a clamping piece, a positioning block and two pushing pieces, the bearing piece is used for adsorbing the film material and bearing the battery cell, the clamping piece is arranged on the bearing piece and is used for respectively propping against two side surfaces along the width direction of the bearing piece to clamp the battery cell, the positioning block and the two pushing pieces are arranged at intervals along the length direction of the bearing piece, and the two pushing pieces are used for propping against the end face and pushing the end cover of the battery cell to prop against the positioning block. The film material feeding mechanism is arranged at the film material feeding station and used for placing the unfolded film material on the bearing assembly. The battery cell feeding mechanism is arranged at the battery cell feeding station and used for placing the battery cell on the first face of the membrane material on the bearing assembly and enabling the battery cell to be located between the positioning block and the two pushing pieces. The bottom surface hot melting mechanism is arranged at a bottom surface hot melting station and used for hot melting the first surface part on the bottom surface. The turnover mechanism is arranged at the top surface hot melting station and is used for turning over the second face part to the top surface of the battery cell, and the two pushing pieces can respectively push the two ends of the connecting part after the second face part is turned over to the top surface, so that the two ends of the connecting part are attached to the two ends of the end surface in sequence, and the two sides of the end cover along the second direction are abutted to the positioning blocks in sequence. The turnover mechanism comprises a transfer component, two connecting arms, two film clamping parts, a film pressing connecting plate, a film pressing driving piece and a film pressing plate. The two connecting arms are respectively connected with the transfer assembly in a transmission way, can move along the vertical direction and along the length direction of the bearing piece under the drive of the transfer assembly, and respectively extend into two sides of the width direction of the bearing assembly at the top surface hot melting station. The two membrane clamping parts are respectively rotatably arranged on one side of the two connecting arms, which are opposite to each other, and are respectively used for clamping the two ends of the second surface part along the width direction of the bearing assembly, and the rotation axis of the membrane clamping parts is parallel to the width direction of the bearing assembly. The press film connecting plate is connected to the two connecting arms, the press film driving piece is arranged on the press film connecting plate, the press film plate is connected to the press film driving piece in a transmission mode, and the press film plate can move in the vertical direction under the driving of the press film driving piece so as to press the second face portion on the top face. The top surface hot melting mechanism is arranged at the top surface hot melting station and used for hot melting the second surface part on the top surface.

According to the coating equipment disclosed by the application, through the action structure design of the folding mechanism and the first opening and closing clamp, the first face, the second face and the connecting part of the film material can be firmly and reliably attached to the top surface, the surface and the end surface of the battery core respectively, the first face is reliably and thermally fused to the bottom surface, and the second face is reliably and thermally fused to the top surface, so that the coating quality of the film material on the battery core is improved.

In one possible embodiment:

the bearing assembly further comprises a plurality of elastic pieces, wherein the elastic pieces are respectively and elastically supported between the bearing piece, the clamping piece and the two pushing pieces, so that the clamping piece can hold the battery cell, and the two pushing pieces can press the battery cell against the positioning block;

the coating equipment further comprises a first opening and closing mechanism, the first opening and closing mechanism is arranged at the top surface hot melting station, the first opening and closing mechanism comprises two first opening and closing clamps, the two first opening and closing clamps are respectively used for synchronously pushing the two pushing pieces, so that the two pushing pieces overcome the elastic force of the elastic pieces to be far away from the positioning block, and are also respectively used for being far away from the two pushing pieces in sequence, so that the two elastic pieces drive the two pushing pieces in sequence to push the two sides of the connecting portion to move, and the two ends of the connecting portion are propped against the end face of the battery cell in sequence.

In one possible embodiment:

the first opening and closing clamp comprises a first opening and closing driving piece and a first opening and closing pushing piece, the first opening and closing driving piece is connected with the first opening and closing pushing piece and used for driving the two first opening and closing pushing pieces to push the two pushing pieces to move along the length direction of the bearing piece, the pushing speed of the two first opening and closing driving pieces can be adjusted, the moving speed of the first opening and closing driving piece, which drives the first opening and closing pushing piece to be far away from the pushing piece, is smaller than the moving speed of the other first opening and closing driving piece, which drives the other first opening and closing pushing piece, so that the two elastic pieces drive the two pushing pieces to push the two sides of the connecting portion to move, and the two ends of the connecting portion are propped against the end face of the electric core successively.

In one possible embodiment:

the bearing assembly further comprises a sliding part, the sliding part is slidably arranged on the lower surface of the bearing part along the length direction of the bearing part, the sliding part is provided with two inclined long holes symmetrically arranged along the axis of the bearing part, and the extending direction of the inclined long holes is positioned between the length direction and the width direction of the bearing part; the clamping piece comprises two clamping parts which are arranged at intervals along the width direction of the bearing piece, the two clamping parts are respectively provided with a matching bulge, and the two matching bulges are respectively matched with the two inclined long holes; the two pushing pieces are respectively and slidably arranged on the two clamping parts along the length direction of the bearing piece.

In one possible embodiment:

the film clamping part comprises a film clamping driving piece and two film clamping strips, wherein the two film clamping strips are arranged at intervals along the vertical direction and are connected to the film clamping driving piece in a transmission manner so as to be close to or far away from the second surface to be clamped under the driving of the film clamping driving piece.

In one possible embodiment:

the bottom surface hot melting mechanism comprises a bottom surface pressing component and a bottom surface hot melting component, wherein the bottom surface pressing component is movably arranged above the turntable and can be close to a bottom surface hot melting station so as to press the battery cell on the bearing component; the bottom surface hot melt subassembly movably locates the below of carousel, and the bottom surface hot melt subassembly includes bottom surface hot melt driving piece, bottom surface hot melt portion and bottom surface pressure sensor, and bottom surface pressure sensor connects in bottom surface hot melt driving piece and bottom surface hot melt portion, and bottom surface hot melt driving piece is used for driving bottom surface hot melt portion motion and butt in the first face that is located on the carrier assembly to with first face hot melt in the bottom surface.

In one possible embodiment:

the top surface hot melting mechanism comprises an end cover positioning assembly and a top surface hot melting assembly, and the end cover positioning assembly is movably arranged below the turntable and can be close to the top surface hot melting station so as to position an end cover of the battery cell on the bearing assembly; the top surface hot melt subassembly movably locates the top of carousel, and top surface hot melt subassembly includes top surface hot melt driving piece, top surface hot melt portion and top surface pressure sensor, and top surface pressure sensor connects in top surface hot melt driving piece and top surface hot melt portion, and top surface hot melt driving piece is used for driving top surface hot melt portion motion and butt in the second face that is located on the electric core to with second face hot melt in the top surface.

In one possible embodiment:

two sides of the first face are respectively provided with two first side ears, two sides of the second face are respectively provided with two second side ears, the two first side ears are respectively used for being attached to the two side faces, and the two second side ears are respectively used for being attached to the two side faces;

the turntable is also provided with a side hot melting station, and the coating equipment also comprises a side lug folding mechanism and a side lug hot melting mechanism; the side ear folding mechanism is movably arranged relative to the turntable, the side ear folding mechanism comprises a first folding component and a second folding component, the first folding component is arranged above the turntable, the second folding component is arranged below the turntable, the first folding component is used for approaching the bearing component from the upper part of the turntable and folding two first side ears to be attached to two side surfaces, the second folding component is used for approaching the bearing component from the lower part of the turntable and folding two second side ears to be attached to two side surfaces;

the side ear hot melting mechanism is used for hot melting the first side ear and the second side ear on two side surfaces.

In one possible embodiment:

the side ear hot melting mechanism comprises a side ear hot melting driving piece, two side ear hot melting parts and two side ear pressure sensors, wherein the two side ear hot melting parts are respectively connected to the side ear hot melting driving piece through the two side ear pressure sensors in a transmission mode, and can be driven by the side ear hot melting driving piece to approach to the battery cell along the width direction of the bearing assembly so as to respectively hot melt the first side ear and the second side ear on the two side faces.

In a second aspect, the present application further provides a coating method, which is based on the foregoing coating apparatus, and includes: the turntable drives the bearing assembly to enter a film material feeding station, and the film material feeding mechanism places the unfolded film material on the bearing assembly; the rotary table drives the bearing assembly to enter a battery cell feeding station, and the battery cell feeding mechanism places the battery cell on the first face of the film material; the rotary table drives the bearing assembly to enter a bottom surface hot melting station, and the bottom surface hot melting mechanism is used for hot melting the first surface part on the bottom surface of the battery cell; the turntable drives the bearing assembly to enter a top surface hot melting station, the clamping piece and the two pushing pieces release the electric core, the turnover mechanism drives the second face part of the film material to turn over to the top surface of the electric core, the second face part keeps being attached to the top surface, the two pushing pieces push the two ends of the connecting part in sequence, so that the two ends of the connecting part are attached to the two ends of the end surface in sequence, and the two sides of the end cover in the second direction are abutted to the positioning blocks on the bearing assembly in sequence; the top surface hot melting mechanism is used for hot melting the second surface part on the top surface.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly describe the drawings in the embodiments, it being understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a coating apparatus according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a turntable, a bearing assembly, a first opening and closing mechanism and a second opening and closing mechanism according to an embodiment of the present application;

FIG. 3 is a schematic view of a film feeding grabbing member and a film according to an embodiment of the present application;

FIG. 4 is a schematic diagram of a cell coated with a film according to an embodiment of the application;

FIG. 5 is a schematic diagram of a film feeding suction cup according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a battery cell feeding grabbing member and a battery cell according to an embodiment of the present application;

FIG. 7 is a schematic view of a carrier assembly according to an embodiment of the application;

FIG. 8 is a schematic view of a carrier assembly according to another embodiment of the present application;

FIG. 9 is a schematic view of an exploded view of a carrier assembly according to an embodiment of the present application;

FIG. 10 is a schematic view of an exploded view of a carrier assembly according to another embodiment of the present application;

FIG. 11 is a schematic structural view of a second opening and closing mechanism according to an embodiment of the present application;

FIG. 12 is a schematic view of a first opening and closing mechanism according to an embodiment of the present application;

FIG. 13 is a schematic view of a bottom surface hot-melt mechanism according to an embodiment of the present application;

FIG. 14 is a schematic view of a turnover mechanism and a top surface hot melt mechanism according to an embodiment of the present application;

FIG. 15 is a schematic view of a turnover mechanism according to an embodiment of the present application;

FIG. 16 is a schematic view of a top surface hot melt mechanism according to an embodiment of the present application;

FIG. 17 is a schematic view of a top surface hot melt mechanism and battery mating structure according to an embodiment of the present application;

FIG. 18 is a schematic view of a top surface hot melt mechanism according to an embodiment of the present application at another angle to the battery;

FIG. 19 is a schematic view showing a structure of a side-ear hot-melt mechanism according to an embodiment of the present application;

fig. 20 is a schematic structural view of a blanking grabbing member according to an embodiment of the present application.

Description of main reference numerals:

a coating apparatus 100; a turntable 10; a film material loading station 11; a cell loading station 12; a bottom surface hot melting station 13; a top surface hot melt station 14; a side ear hot melt station 15; a blanking station 16; a frame 17; a carrier assembly 20; a carrier 21; a carrier plate 211; an adsorption plate 212; a through hole 213; positioning the protrusion 214; a clamp 22; a clamping portion 22a; a clamping block 221; a slide bar 222; a connecting bar 223; a stop block 224; mating projections 225; a positioning block 23; a pusher 24; a pushing block 241; a mating block 242; a stopper 243; a linkage block 244; a linkage post 245; an elastic member 25; a slider 26; an inclined long hole 261; a load bearing rail 271; carrying sliders 272,272a,272b; a relief opening 28; a film material feeding mechanism 30; a film material feeding sliding table 31; a film material feeding driving member 32; a film material feeding grasping member 33; a film material feeding rotary member 331; a film material loading suction cup 332; a membrane material loading positioning groove 333; a film material feed connection 34; a film material loading buffer member 35; a film material feeding adapter plate 36; a cell loading mechanism 40; a cell feeding sliding table 41; a cell loading drive 42; a cell feeding gripper 43; the cell feeding positioning piece 431; a cell fixing block 4311; cell active block 4312; cell loading clamping jaw 432; cell loading buffer pad 433; the cell clamping drive 434; a cell compression member 44; the battery cell feeding adapter plate 45; a bottom surface hot-melt mechanism 51; a bottom surface compression assembly 511; a bottom pressing driving member 5111; a bottom face compact 5112; a bottom surface hot melt assembly 512; a bottom hot melt driving member 5121; a bottom pressure sensor 5122; a bottom hot melt connection plate 5123; a bottom surface heat-fused portion 5124; a bottom surface hot melt transfer assembly 513; a bottom surface hot melt clamp assembly 514; a bottom surface grip driving member 5141; bottom surface hot melt jaw 5142; a top surface hot melt mechanism 52; an end cap positioning assembly 521; an end cap positioning drive 5211; an end cap positioning portion 5212; an end cap positioning step 5213; a top surface hot melt assembly 522; a top surface hot melt driving member 5221; a top pressure sensor 5222; a top hot melt connection plate 5223; a top surface hot melt portion 5224; a top side hot melt transfer assembly 523; a top surface hot melt clamp assembly 524; a top surface grip drive 5241; top surface hot melt jaws 5242; an end face positioning assembly 525; an end face vertical drive 5251; an end face lateral drive 5252; an end surface positioning portion 5253; a side ear folding mechanism 53; a first folding component 531; a first folding driver 5311; a first clamp drive 5312; a first folding plate 5313; a first escape port 5314; a second folding component 532; a second fold driver 5321; a second clamp drive 5322; a second folding plate 5323; a second escape port 5324; side ear hold-down 533; a pressing groove 5331; a side ear hot melt mechanism 54; a side ear hot melt driving member 541; a side ear hot melt elevation part 5411; a side ear hot melt pushing portion 5412; side ear heat-fused portions 542; a side ear pressure sensor 543; a side ear hotmelt interposer 544; a side ear transfer assembly 55; a turnover mechanism 60; the turnover transfer assembly 61; folding a transverse sliding table 611; turning over a vertical sliding table 612; a connecting arm 62; a film sandwiching portion 63; a nip drive 631; a clip film strip 632; a mounting plate 64; a rotation driving member 651; a rotating shaft 652; a transmission component 653; a film pressing connection plate 66; a film pressing driving member 67; a film pressing plate 68; a first opening and closing mechanism 71; a first opening/closing jig 711; a first opening and closing driving member 7111; a first opening and closing push block 7112; a second opening and closing jig 712; a second opening and closing driving member 7121; a second opening and closing push block 7122; a second opening and closing mechanism 72; a third opening and closing jig 721; a third opening and closing driving member 7211; a third opening and closing push block 7212; pushing arm 7213; a fourth closing jig 722; a fourth opening and closing driving part 7221; a fourth opening and closing push block 7222; a blanking mechanism 80; a discharging sliding table 81; a blanking drive member 82; a blanking grasping member 83; a discharging rotary driving member 831; a blanking clamping cylinder 832; a blanking clamp 833; a blanking compaction 834; a blanking adapter plate 84; a cell 200; a top surface 201; a bottom surface 202; a side 203; an end face 204; an end cap 205; a film 300; a first face 301; a second face 302; a connection portion 303; a first end 303a; a second end 303b; a first side ear 304; a second side ear 305; a positioning hole 306; a first direction Y1; a second direction Y2; a third direction Y3; a width direction Y4; a length direction Y5; vertical direction Y6.

The application will be further described in the following detailed description in conjunction with the above-described figures.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.

Some embodiments of the application are described in detail. The following embodiments and features of the embodiments may be combined with each other without collision.

Examples

Referring to fig. 1 to 6, the present embodiment provides a coating apparatus 100 for thermally fusing a film 300 to a battery cell 200.

Referring to fig. 3, the battery cell 200 includes a top surface 201 and a bottom surface 202 that are disposed at intervals along a first direction Y1, two side surfaces 203 that are disposed at intervals along a second direction Y2, and an end surface 204 and an end cover 205 that are disposed at intervals along a third direction Y3, where the top surface 201, the bottom surface 202, the side surfaces 203, the end surface 204, and the end cover 205 are sequentially connected to form the battery cell 200.

Referring to fig. 6, a film 300 includes a first surface 301, a second surface 302 and a connection portion 303, where the first surface 301 is used to attach to the top surface 201, the second surface 302 is used to attach to the bottom surface 202, the connection portion 303 is connected to the first surface 301 and the second surface 302 and is used to attach to the end surface 204, two sides of the first surface 301 are respectively provided with two first side ears 304, two sides of the second surface 302 are respectively provided with two second side ears 305, two first side ears 304 are respectively used to attach to two side surfaces 203, and two second side ears 305 are respectively used to attach to two side surfaces 203.

Referring to fig. 1, the coating apparatus 100 includes a turntable 10, a carrying assembly 20, a film material feeding mechanism 30, a battery cell feeding mechanism 40, a bottom surface hot-melt mechanism 51, a folding mechanism 60, a top surface hot-melt mechanism 52, a side ear folding mechanism 53, a side ear hot-melt mechanism 54, and a blanking mechanism 80.

Referring to fig. 2, the turntable 10 is rotatably disposed, and the carrier assembly 20 is coupled to the turntable 10. In this embodiment, a frame 17 is erected above the turntable 10 along the vertical direction Y6, the turntable 10 is rotatably connected to the frame 17, a film material feeding station 11, a cell material feeding station 12, a bottom surface hot melting station 13, a top surface hot melting station 14, a side surface 203 hot melting station and a blanking station 16 which are arranged in a surrounding manner are defined in sequence near the turntable 10, the turntable 10 can drive the bearing components 20 to move to each station, one bearing component 20 can be arranged, six bearing components 20 are respectively arranged corresponding to the six stations, and each bearing component 20 can be respectively moved to the next station in the rotation direction of the turntable 10 by rotating the turntable 10. The rotary driving structure of the rotary disk 10 may be a motor or a rotary cylinder. In the present embodiment, the first direction Y1 of the battery cells 200 disposed on the carrier assembly 20 is parallel to the vertical direction Y6.

Referring to fig. 7, the carrier assembly 20 includes a carrier 21, a clamp 22, a positioning block 23, and two pushers 24.

The bearing member 21 is fixedly arranged on the turntable 10 and is used for adsorbing the film 300 and bearing the battery cell 200. Specifically, the carrier 21 includes a carrier plate 211 and an adsorption plate 212, one end of the carrier plate 211 is fixedly disposed at the edge of the turntable 10, the other end of the carrier plate 211 is suspended and extends to the outside of the turntable 10, the adsorption plate 212 is fixedly disposed on the carrier plate 211, and the adsorption plate 212 can adsorb the film 300 in an adsorption manner such as vacuum adsorption or magnet adsorption, and can carry the battery cell 200.

The clamping members 22 are disposed on the carrier 211 and are used for respectively abutting against the two side surfaces 203 along the width direction Y4 of the carrier 21 to clamp the battery cells 200, so as to clamp and position the battery cells 200 on the carrier 20 along the width direction Y4 of the carrier 21. The positioning block 23 and the two pushing members 24 are arranged at intervals along the length direction Y5 of the carrier 21, and the two pushing members 24 are used for abutting against the end face 204 and pushing the end cover 205 of the battery cell 200 to abut against the positioning block 23, so that the battery cell 200 is clamped and positioned along the length direction Y5 of the carrier 21. Therefore, the electric core 200 only has the degree of freedom of displacement along the vertical direction Y6 on the bearing component 20, and the rotary table 10 is difficult to drive the bearing component 20 and the electric core 200 to displace along the vertical direction Y6 in the rotating process, so that the position stability of the rotary table 10 for driving the electric core 200 on the bearing component 20 to move in different stations is ensured, the position adjustment of the bearing component 20 to each station is simple and quick, and the efficiency of coating and hot-melt film material 300 on the electric core 200 is improved. In the present embodiment, the second direction Y2 of the battery cells 200 disposed on the carrier assembly 20 is parallel to the width direction Y4 of the carrier assembly 20, and the third direction Y3 of the battery cells 200 disposed on the carrier assembly 20 is parallel to the length direction Y5 of the carrier assembly 20.

Referring to fig. 1, a film loading mechanism 30 is disposed at the film loading station 11 and is used to place the stretched film 300 on the carrier assembly 20. The cell feeding mechanism 40 is disposed at the cell feeding station 12, and is used for placing the cell 200 on the first face 301 of the film 300 on the carrier assembly 20, and positioning the cell 200 between the positioning block 23 and the two pushing members 24. The bottom surface heat-fusing mechanism 51 is provided at the bottom surface heat-fusing station 13, and is used for heat-fusing the first surface 301 to the bottom surface 202. The folding mechanism 60 is disposed at the top surface hot melting station 14, and is used for folding the second face 302 onto the top surface 201 of the battery cell 200. Referring to fig. 4 and 7, after the second face 302 is folded to the top surface 201, the two pushing members 24 can push the two ends of the connecting portion 303 respectively, so that the two ends of the connecting portion 303 are attached to the two ends of the end surface 204 sequentially, and the two sides of the end cover 205 along the second direction Y2 are abutted to the positioning block 23 sequentially. The top surface hot melting mechanism 52 is disposed at the top surface hot melting station 14 and is used for hot melting the second face 302 to the top surface 201. The side ear folding mechanism 53 is disposed at the side ear hot melting station 15, and is used for folding the first side ear 304 and the second side ear 305 to abut against the side face 203 of the battery cell 200. The side ear heat-fusing mechanism 54 is disposed at the side ear heat-fusing station 15, and is configured to heat-fuse the first side ear 304 and the second side ear 305 to the side surface 203.

When the coating apparatus 100 of this embodiment works, after the turntable 10 drives the carrying assembly 20 to move to the bottom surface hot melting station 13, the bottom surface hot melting mechanism 51 hot melts the first surface 301 on the bottom surface 202, and then the two pushing members 24 and the positioning blocks 23 cooperate to clamp the battery cell 200, and the clamping members 22 clamp the battery cell 200. The turntable 10 drives the bearing assembly 20 to move to the top surface hot melting station 14, the clamping piece 22 releases the electric core 200, the two pushing pieces 24 are far away from the positioning block 23 and release the electric core 200, so that the connecting part 303 can not interfere with the pushing pieces 24 when the second face 302 is folded by the folding mechanism 60, the folding mechanism 60 can conveniently rotate the second face 302 of the unfolded film 300 around a turnover shaft 652 line parallel to the width direction Y4 of the bearing assembly 20, the second face 302 is further kept attached to the top surface 201 of the electric core 200, the relative positions of the second part and the electric core 200 are fixed, and the top surface hot melting mechanism 52 can accurately hot melt the second face 302 to the top surface 201 of the electric core 200. After the second surface 302 is thermally fused to the top surface 201, the folding mechanism 60 returns, and a gap still exists between the connecting portion 303 of the film 300 and the end surface 204 of the battery cell 200, and therefore, when the two pushing members 24 push the connecting portion 303 to abut against the end surface 204 synchronously, the inventor finds that, in many cases of the related art, the connecting portion 303 is very easy to generate a wrinkle phenomenon, and the wrinkle easily affects the attaching quality of the film 300 on the battery cell 200, and even affects the assembling quality of the battery cell 200 and the aluminum case in the subsequent process, thereby causing a potential safety hazard problem. In the prior art, after the problem is found, the coating process of the film 300 on the battery cell 200 needs to be interrupted, the battery cell 200 is removed, the film 300 is torn off and reworked and adjusted, so that the coating efficiency is seriously reduced, and meanwhile, the torn film 300 is subjected to hot melting treatment, which is difficult to realize reuse, so that the coating yield of the film 300 and the battery cell 200 is also reduced.

The inventor finds that after a plurality of experiments, the connection portion 303 is wrinkled, for example, because the membrane 300 has certain flexibility, in the process of folding the second face 302 by the folding mechanism 60, the surface of the connection portion 303 is in a curved surface state, and after the membrane 300 is folded, until the second face 302 is thermally fused to the top face 201, the surface of the connection portion 303 is still in a curved surface state, and is not automatically formed into a plane capable of being attached to the end face 204; for another example, in the process of driving the second face 302 to move by the folding mechanism 60, there is a difference in moving speeds of different positions where the folding mechanism 60 grabs the second face 302, and the acting forces applied to the second face 302 may be different, so that in the process of folding the second face 302, one side of the second face 302 drives the first end 303a to complete folding first, and the other side of the second face 302 drives the second end 303b to complete folding, which also causes the connecting portion 303 to generate wrinkles.

In this embodiment, by making the two pushing members 24 push the first end portion 303a and the second end portion 303b to attach to the end face 204, and then drive the end cover 205 to abut against the positioning block 23 along the two sides of the second direction Y2, for example, when one pushing member 24 pushes the first end portion 303a to attach to the end face 204, the portion other than the first end portion 303a of the connecting portion 303 will naturally stretch, so that when the other pushing member 24 pushes the second end portion 303b to attach to the end face 204, the positions of the connecting portion 303 can be attached to the end face 204 relatively smoothly, so that the attaching reliability of the connecting portion 303 on the battery cell 200 is ensured, and further, the yield and the processing efficiency are improved, and the increase of the operation cost and the structure cost is also small, so that the yield and the coating efficiency can be improved through the structural change of low cost.

Thereafter, the turntable 10 drives the bearing assembly 20 to move to the side ear hot melting station 15, the side ear folding mechanism 53 makes the folded paper of the first side ear 304 and the second side ear 305 abut against the side face 203 of the battery cell 200, and the side ear hot melting mechanism 54 makes the first side ear 304 and the second side ear 305 hot-melt on the side face 203 of the battery cell 200, so as to complete the hot melting step of the film material 300 on the battery cell 200. The rotary table 10 drives the bearing assembly 20 to move to the blanking station 16, and the blanking mechanism 80 grabs the electric core 200 which is subjected to hot melting and conveys the electric core to the next production station.

In this embodiment, referring to fig. 7 to 10, the carrying assembly 20 further includes a plurality of elastic members 25, a portion of the elastic members 25 is elastically supported between the carrying member 21 and the clamping member 22, so that the clamping member 22 holds the battery cell 200, and another portion of the elastic members 25 is elastically supported between the carrying member 21 and the two pushing members 24, so that the two pushing members 24 press the battery cell 200 against the positioning block 23. The elastic member 25 can automatically clamp the battery cell 200 by the clamping member 22, and the two pushing members 24 automatically press the battery cell 200 against the positioning block 23. Compared with the stable clamping realized by a mechanical driving device, the elastic piece 25 has the advantages that the clamping and fixing cost of the battery cell 200 is low, the acting force is small, the battery cell 200 or the membrane 300 is not easy to be damaged, and the protection effect on the battery cell 200 or the membrane 300 is ensured.

Referring to fig. 2 and 12, the coating apparatus 100 further includes a first opening and closing mechanism 71, where the first opening and closing mechanism 71 is disposed on the top surface hot melting station 14, and the first opening and closing mechanism 71 includes two first opening and closing clamps 711, where the two first opening and closing clamps 711 are respectively used to synchronously push the two pushing members 24, so that the two pushing members 24 overcome the elastic force of the elastic member 25 and are far away from the positioning block 23, and are also respectively used to successively separate from the two pushing members 24, so that the two elastic members 25 successively drive the two pushing members 24 to push two sides of the connecting portion 303 to move, so that two ends of the connecting portion 303 successively abut against the end face 204 of the electric core 200.

After the turntable 10 drives the bearing assembly 20 to move to the top surface hot melting station 14, the two first opening and closing clamps 711 can synchronously push the two pushing members 24 and unlock the battery cell 200 in the third direction Y3, the folding mechanism 60 and the top surface hot melting mechanism 52 sequentially act to thermally melt the second face 302 on the top surface 201, the folding mechanism 60 and the top surface hot melting mechanism 52 sequentially keep away from the bearing assembly 20, the two first opening and closing clamps 711 sequentially push the two pushing members 24, so that the two elastic members 25 can sequentially drive the two pushing members 24 to push one side of the first end 303a and one side of the second end 303b, the first end 303a and the second end 303b are sequentially abutted against the end 204 of the battery cell 200, smooth lamination of the connecting portion 303 and the end 204 of the battery cell 200 is ensured, the possibility of generating wrinkles is remarkably reduced, and the cladding hot melting effect and quality of the film 300 on the battery cell 200 are improved.

In this embodiment, referring to fig. 12, the first opening and closing clamp 711 includes a first opening and closing driving member 7111 and a first opening and closing pushing member 7112, where the first opening and closing driving member 7111 is connected to the first opening and closing pushing member 7112 and is used to drive the two first opening and closing pushing members 7112 to push the two pushing members 24 to move along the length direction Y5 of the carrier 21, the pushing speed of the two first opening and closing driving members 7111 is adjustable, and the moving speed of one first opening and closing driving member 7111 to drive the first opening and closing pushing member 7112 to move away from the pushing member 24 is smaller than the moving speed of the other first opening and closing driving member 7111 to drive the other first opening and closing pushing member 7112, so that the two elastic members 25 sequentially drive the two pushing members 24 to push the two sides of the connecting portion 303 to move, so that the two ends of the connecting portion 303 sequentially abut against the end face 204 of the cell 200. In this embodiment, the first opening and closing driving members 7111 may be configured as motors or cylinders, and the adjustment of the pushing speed of the two first opening and closing driving members 7111 is achieved by controlling the motors or controlling the air flow of the cylinders.

In this embodiment, referring to fig. 7 to 10, the bearing assembly 20 further includes a sliding member 26, the sliding member 26 is slidably disposed on the lower surface of the bearing member 21 along the length direction Y5 of the bearing member 21, the sliding member 26 is provided with two inclined long holes 261 symmetrically disposed along the axis of the bearing member 21, and the extending direction of the inclined long holes 261 is located between the length direction Y5 and the width direction Y4 of the bearing member 21; the clamping member 22 includes two clamping portions 22a, the two clamping portions 22a are arranged at intervals along the width direction Y4 of the carrier 21, the two clamping portions 22a are respectively provided with a fitting protrusion 225, and the two fitting protrusions 225 are respectively fitted in the two inclined long holes 261; the two pushing members 24 are slidably provided in the two holding portions 22a along the longitudinal direction Y5 of the carrier 21, respectively.

In this embodiment, referring to fig. 9 and 10, the bearing assembly 20 further includes a bearing rail 271 and a bearing slider 272, the bearing rail 271 is disposed on the bottom surface 202 of the carrier 21, the bearing rail 271a extends along the width direction Y4 of the carrier 21, the bearing rail 271b extends along the length direction Y5 of the carrier 21, the bearing slider 272a is disposed on the slider 26, and the bearing slider 272b is disposed on the clamping portion 22a. In this way, by the cooperation of the engaging protrusion 225 and the inclined long hole 261, the sliding member 26 can slide along the length direction Y5 of the carrier 21 to drive the two clamping portions 22a to slide along the width direction Y4 of the carrier 21, so as to drive the two clamping portions 22a to approach each other to clamp and position the battery cell 200, or to move away from each other to release the battery cell 200. Meanwhile, the clamping parts 22a are far away from each other and can drive the two pushing pieces 24 to be far away from each other along the second direction Y2, so that the pushing pieces 24 and the battery cell 200 are staggered in the first direction Y1, and interference of the pushing pieces 24 on turning over of the film 300 on the battery cell 200 is avoided. Of course, in the sliding process of the sliding member 26, the first opening and closing clamp 711 drives the pushing member 24 to move at the same time, so that the pushing member 24 also moves along the third direction Y3 and is away from the clamping portion 22a and the battery cell 200, so as to avoid the pushing member 24 from scratching the battery cell 200 or the film 300 during the movement of the pushing member 24 in the second direction Y2, and ensure the protection effect on the film 300 or the battery cell 200.

In this embodiment, the bearing assembly 20 is provided with two through holes 213 spaced apart along the width direction Y4, the bearing rail 271b is disposed at two sides of the through hole 213, and the clamping portion 22a includes a clamping block 221, a sliding bar 222, a connecting bar 223, a stop block 224 and a fitting protrusion 225. The sliding strip 222 passes through the through hole 213, the sliding strip 222 is located at the clamping part 22a and is connected with the bearing sliding block 272b below the bearing piece 21, the upper part of the sliding strip 222 located at the bearing piece 21 is connected with the clamping block 221, the clamping block 221 is used for abutting against the battery cell 200 or the film 300, the connecting strip 223 is connected with the upper part of the sliding strip 222 located at the bearing piece 21, and the pushing piece 24 is slidably connected with the connecting strip 223. The pusher 24 includes a pusher block 241, a mating block 242, a limiter 243, a linkage block 244, and a linkage post 245. The pushing block 241 is used to abut against the battery cell 200 or the membrane 300. The engagement block 242 is coupled to the pushing block 241 and slidably engages the sliding bar 222. The stopper 243 is provided on the engaging block 242 and engages with the stopper 224 of the clamping portion 22a to limit the travel of the pushing member 24 on the clamping portion 22a in the longitudinal direction Y5. One end of the linkage block 244 is connected to the matching block 242, and the other end extends to the lower part of the bearing member 21, and is provided with a linkage protrusion, and the linkage protrusion is matched with the first opening and closing pushing block 7112, so that the first opening and closing clamp 711 can drive the pushing member 24 to move.

In this embodiment, referring to fig. 12, the first opening and closing mechanism 71 further includes a second opening and closing clamp 712, where the second opening and closing clamp 712 includes a second opening and closing driving member 7121 and a second opening and closing pushing member 7122, and the second opening and closing driving member 7121 is configured to push the second opening and closing pushing member 7122 to move so as to drive the sliding member 26 to move, and further move the two clamping portions 22a along the extending direction of the inclined long hole 261, so that the two clamping portions 22a synchronously generate displacement in the length direction Y5 and the width direction Y4 of the bearing assembly 20.

In this embodiment, the sliding member 26 is further elastically connected to the carrier 21 through the elastic member 25, so that after the second opening and closing clamp 712 is separated from the sliding member 26, the sliding member 26 can drive the clamping portions 22a to move under the elastic force of the elastic member 25, and further drive the two clamping portions 22a to clamp the battery cell 200.

In this embodiment, referring to fig. 12, the first opening and closing push block 7112 is located at the inner side of the linkage protrusion near the turntable 10, and the second opening and closing push block 7122 is located at the inner side of the slider 26 near the turntable 10, so that when the first opening and closing push block 7112 and the second opening and closing push block 7122 move along the radial outer direction of the turntable 10, the slider 26 and the push member 24 can be driven to synchronously move along the radial outer side of the turntable 10, and overcome the elastic force to release the battery cell 200; when the second opening and closing push block 7122 and the second opening and closing push block move along the radial inner side direction of the turntable 10, the elastic piece 25 gradually drives the sliding piece 26 and the push piece 24 to synchronously move along the radial inner side of the turntable 10, so as to drive the clamping piece 22 to clamp the battery cell 200, and the push piece 24 is matched with the positioning block 23 to clamp the battery cell 200. Through the position structural design, after the battery cell 200 is locked, the rotary table 10 can drive the bearing assembly 20 to move, interference with the first opening and closing mechanism 71 is avoided, the positioning block 23 is positioned on the inner side of the rotary table 10, and the main hot melting position of the battery cell 200 and the film 300 is positioned at the positioning block 23, so that the hot melting space of the battery cell 200 can not interfere with the clamping and locking structure of the bearing assembly 20, the radial inner side and the radial outer side of the rotary table 10 are fully utilized, and the integration of the coating equipment 100 is improved.

In this embodiment, referring to fig. 11, the film coating apparatus 100 further includes a plurality of second opening and closing mechanisms 72, and the film material loading station 11, the electrical core loading station 12, the side ear hot melting station 15, and the blanking station 16 are respectively provided with the second opening and closing mechanisms 72. The second opening and closing mechanism 72 includes a third opening and closing jig 721 and a fourth opening and closing jig 722. The third opening and closing clamp 721 includes a third opening and closing driving member 7211 and a third opening and closing pushing block 7212, the third opening and closing driving member 7211 is connected with the third opening and closing pushing block 7212, the third opening and closing pushing block 7212 is connected with two pushing arms 7213, and the two pushing arms 7213 respectively correspond to the two pushing members 24, so that the third opening and closing driving member 7211 drives the two pushing members 24 to be far away from or close to the positioning block 23 through driving the third opening and closing pushing block 7212 to move synchronously. The fourth opening and closing clamp 722 includes a fourth opening and closing driving element 7221 and a fourth opening and closing pushing block 7222, where the fourth opening and closing driving element 7221 is connected to the fourth opening and closing pushing block 7222 and is used to push the fourth opening and closing pushing block 7222 to move, so as to drive the sliding element 26 to move, so that the two clamping portions 22a approach or separate, and further clamp or release the battery cell 200.

In other embodiments, the clamping member 22 and the pushing member 24 may be also configured as an electric push rod driven by electric power according to specific design requirements of the apparatus, without providing an additional elastic member 25, and the foregoing effects may be achieved by adjusting the operation procedures of the driving motors of the clamping member 22 and the pushing member 24 in real time. Of course, in the embodiment, the first opening and closing driving member 7111, the second opening and closing driving member 7121, the third opening and closing driving member 7211 and the fourth opening and closing driving member 7221 may be all configured as cylinders, the movement speed of the first opening and closing driving member 7111 may be adjusted by the air flow of the cylinders, the cylinder driving has lower cost compared with the motor driving, and, since the bearing assembly 20 needs to circularly move under the driving of the turntable 10, if the pushing devices of the clamping member 22 and the pushing member 24 are integrated on the turntable 10, the wiring and the air path arrangement are complex, and the influence on the movement of the turntable 10 is large.

Referring again to fig. 1 and 3, in the present embodiment, the film feeding mechanism 30 includes a film feeding slide table 31, a film feeding driving member 32, a film feeding grasping member 33, a film feeding connecting member 34, a film feeding buffer member 35, and a film feeding adapter plate 36. The film material feeding sliding table 31 is connected with the film material feeding adapter plate 36 and is used for driving the film material feeding adapter plate 36 to be close to or far away from the turntable 10, the film material feeding driving piece 32 is arranged on the film material feeding adapter plate 36 and is connected with the film material feeding grabbing piece 33 so as to drive the film material feeding grabbing piece 33 to move along the vertical direction Y6 to be close to the bearing assembly 20 so as to place the film material 300 on the bearing assembly 20, or to be far away from the bearing assembly 20 so as to return to carry out next feeding.

The film material feeding driving piece 32 is connected with the film material feeding grabbing piece 33 through the film material feeding connecting piece 34 and the film material feeding buffer piece 35, so that when the film material 300 is placed in the vertical direction Y6, the film material feeding buffer piece 35 can provide a buffer effect, the possibility that the film material 300 is damaged due to collision between the film material feeding grabbing piece 33 and the bearing assembly 20 is reduced, and the protection effect on the film material 300 is improved. In this embodiment, the film feeding sliding table 31 is a linear sliding table, and the film feeding driving member 32 may be a cylinder. The film material loading buffer 35 may be provided as an elastic sleeve.

In the present embodiment, referring to fig. 3 to 5, the film material feeding grasping member 33 includes a film material feeding rotating member 331, a film material feeding suction cup 332, and a film material feeding positioning groove 333. The bearing plate 211 of the bearing assembly 20 is provided with a positioning protrusion 214, and the positioning protrusion 214 and the film material feeding positioning groove 333 are respectively provided with two positioning protrusions and are correspondingly arranged. The film material loading chuck 332 adsorbs the film material 300 by vacuum adsorption. The film material feeding rotating member 331 is connected to the film material feeding driving member 32 and connected to the film material feeding suction cup 332, so as to drive the film material feeding suction cup 332 to rotate, and further enable the positioning hole 306, the positioning protrusion 214 and the film material feeding positioning groove 333 of the film material 300 to be correspondingly arranged in the vertical direction Y6, so that the feeding positioning of the film material 300 is realized. In the process of feeding the film 300, the second opening and closing mechanism 72 pushes the pushing piece 24 and the clamping piece 22 on the bearing assembly 20 to move to the position for releasing the battery cell 200, and after the film 300 is fed, the second opening and closing mechanism 72 is separated from the pushing piece 24 and the clamping piece 22.

Referring to fig. 1 and 6 again, in this embodiment, the cell feeding mechanism 40 includes a cell feeding sliding table 41, a cell feeding driving member 42, a cell feeding adapter plate 45, and a cell feeding grabbing member 43. The cell feeding sliding table 41 is connected with the cell feeding adapter plate 45 and is used for driving the cell feeding adapter plate 45 to be close to or far away from the turntable 10, the cell feeding driving piece 42 is arranged on the cell feeding adapter plate 45 and is connected with the cell feeding grabbing piece 43 so as to drive the cell feeding grabbing piece 43 to move along the vertical direction Y6 to be close to the bearing assembly 20 and place the cell 200 on the bearing assembly 20, or to be far away from the bearing assembly 20 to return for the next feeding. In this embodiment, the electrical core feeding sliding table 41 is a linear sliding table, and the electrical core feeding driving member 42 may be a cylinder.

In this embodiment, referring to fig. 6, the cell feeding gripping member 43 includes a cell feeding positioning member 431, a cell feeding clamping jaw 432, a cell feeding buffer pad 433, a cell clamping driving member 434, and a cell pressing member 44. The cell clamping driving piece 434 is connected to the cell feeding driving piece 42, the two cell feeding clamping claws 432 are connected to the cell clamping driving piece 434 and are arranged at intervals along the second direction Y2, and the cell clamping driving piece 434 is used for driving the two cell feeding clamping claws 432 to be close to or far away from each other so as to grasp the cell 200 or release the cell 200 and place the cell 200 on the film 300 of the bearing assembly 20. The cell loading fingers 432 are L-shaped to support the cell 200 during the clamping process. The cell feeding buffer pad 433 is arranged on the cell feeding clamping jaw 432 so as to support the cell 200 and protect the cell 200. The cell pressing piece 44 is connected to the cell feeding driving piece 42 and is spaced from the horizontal section of the cell feeding clamping claw 432 to clamp the cell 200 in the first direction Y1, meanwhile, the cell feeding positioning piece 431 includes two cell fixing blocks 4311 and cell movable blocks 4312 which are spaced along the third direction Y3, and the cell movable blocks 4312 can be close to the cell fixing blocks 4311 to fix the cell 200 in the third direction Y3 or be far away from the cell fixing blocks 4311 to release the cell 200. Therefore, the battery cell feeding grabbing piece 43 of the embodiment can completely limit the degree of freedom of the battery cell 200, so that the transfer reliability of the battery cell 200 in the transportation process is ensured. The cell loading gripper 432 can be configured as a double-ended cylinder. The cell compression member 44 may be composed of a cylinder and a press block. In the process of feeding the battery cell 200, the second opening and closing mechanism 72 pushes the pushing piece 24 and the clamping piece 22 on the bearing assembly 20 to move to the position for releasing the battery cell 200, and after the battery cell 200 is fed, the second opening and closing mechanism 72 breaks away from the pushing piece 24 and the clamping piece 22, and enables the pushing piece 24 and the clamping piece 22 to clamp the battery cell 200 so as to perform preliminary positioning and clamping on the battery cell 200.

In this embodiment, referring to fig. 13, the bottom surface hot melting mechanism 51 includes a bottom surface pressing component 511 and a bottom surface hot melting component 512, where the bottom surface pressing component 511 is movably disposed above the turntable 10 and can approach the bottom surface hot melting station 13 to press the battery cell 200 on the bearing component 20; the bottom surface hot-melt assembly 512 is movably disposed below the turntable 10, the bottom surface hot-melt assembly 512 includes a bottom surface hot-melt driving member 5121, a bottom surface hot-melt portion 5124, and a bottom surface pressure sensor 5122, the bottom surface pressure sensor 5122 is connected to the bottom surface hot-melt driving member 5121 and the bottom surface hot-melt portion 5124, and the bottom surface hot-melt driving member 5121 is configured to drive the bottom surface hot-melt portion 5124 to move and abut against the first face 301 disposed on the carrier assembly 20, so as to hot-melt the first face 301 to the bottom surface 202.

After the cell feeding mechanism 40 finishes feeding the cell 200 at the cell feeding station 12, the turntable 10 drives the bearing assembly 20 carrying the film 300 and the cell 200 to move to the bottom surface hot melting station 13. At this time, the bottom pressing component 511 approaches the carrying component 20 from above the turntable 10 and presses the end cap 205 of the battery cell 200 onto the carrying component 20, the bottom heat-melting component 512 approaches the carrying component 20 from below the turntable 10, and the bottom heat-melting portion 5124 passes through the opening on the carrying component 20 to heat-melt the first face 301 to the bottom 202 of the battery cell 200. The bottom pressure sensor 5122 can detect the acting force applied to the first face 301 and the battery cell 200 by the bottom hot-melting portion 5124 in real time, so as to ensure that the first face 301 or the battery cell 200 is not damaged due to excessive pressure, and ensure the reliability of hot-melting the first face 301 to the battery cell 200.

In this embodiment, referring to fig. 13, three bottom surface hot-melt portions 5124 are provided, the output end of the bottom surface hot-melt driving member 5121 is provided with a bottom surface hot-melt connection plate 5123, and the three bottom surface hot-melt portions 5124 are connected to the bottom surface hot-melt connection plate 5123 by a bottom surface pressure sensor 5122. The specific structure of the bottom surface heat-melting portion 5124 can refer to the structure of a known heat-melting component, and will not be described herein. The bottom hot melt driving member 5121 may be provided as a cylinder or a motor.

In this embodiment, referring to fig. 13, the bottom surface heat-melting mechanism 51 further includes a bottom surface heat-melting transfer component 513, and the bottom surface heat-melting transfer component 513 is connected to the bottom surface heat-melting component 512, so as to drive the bottom surface heat-melting component 512 to be close to the turntable 10 before heat-melting starts, so as to facilitate heat-melting the first surface 301 and the bottom surface 202, and drive the bottom surface heat-melting component 512 to be far away from the turntable 10 after heat-melting ends, so as to avoid interference to the movement of the turntable 10 to drive the bearing component 20. The bottom surface hot-melt transfer module 513 in this embodiment may be a linear module or the like.

In this embodiment, referring to fig. 13, the bottom pressing assembly 511 includes a bottom pressing driving member 5111 and a bottom pressing block 5112. The bottom pressing driving member 5111 is arranged on the frame 17, the bottom pressing block 5112 is in transmission connection with the bottom pressing driving member 5111, and can position and press the end cover 205 on the bearing component 20 under the driving of the bottom pressing driving member 5111, so that the degree of freedom of the battery cell 200 in the vertical direction Y6 is limited, because the front film 300 is positioned on the bearing component 20, the battery cell 200 is used for positioning, the gap error between the first face 301 and the end cover 205 can be greatly reduced, the possibility that the end cover 205 generates a explosion point in the subsequent welding process and causes scrapping due to too small gap is reduced, the possibility that the hot melting quality of the first face 301 and the battery cell 200 is poor due to too large gap is also reduced, the hot melting quality of the film 300 on the battery cell 200 is improved, and the subsequent processing reliability is ensured. For example, in actual production operation, the gap error is within + -0.5 mm.

In addition, in the present embodiment, the bottom surface hot melting mechanism 51 further includes a bottom surface hot melting clamping assembly 514, which is connected to the bottom surface pressing driving member 5111, and can be driven by the bottom surface pressing driving member 5111 to approach or separate from the bearing assembly 20. The bottom surface hot-melt clamping assembly 514 is used for clamping the end cap 205 in the width direction Y4 of the carrier assembly 20, so that the battery cell 200 and the first face 301 correspond to each other in the width direction Y4, and the hot-melt precision of the first face 301 is further improved. The bottom surface hot-melt clamping assembly 514 includes a bottom surface clamping driving member 5141 and two bottom surface hot-melt clamping jaws 5142, wherein the two bottom surface hot-melt clamping jaws 5142 are arranged at intervals along the width direction Y4 of the bearing assembly 20, and are in transmission connection with the bottom surface clamping driving member 5141 so as to approach and position and clamp the end cover 205 or be far away from the end cover under the driving of the bottom surface clamping driving member 5141 so as to release the battery cell 200. The bottom surface clamping driving member 5141 may be provided as a double-ended cylinder.

After the first surface 301 is thermally fused to the bottom surface 202, the second opening and closing mechanism 72 is separated from the pushing member 24 and the clamping member 22, and the pushing member 24 and the clamping member 22 clamp the battery cell 200, so as to position and clamp the battery cell 200. Thereafter, the turntable 10 drives the battery cell 200, which completes the heat-fusion of the first face 301, to move to the top-face heat-fusion station 14. And the first opening and closing clamp 711 of the first opening and closing mechanism 71 pushes the two pushing members 24 away from the positioning block 23, and the second opening and closing clamp 712 drives the clamping member 22 to move so as to release the battery cell 200.

Referring to fig. 14 and 15, in the present embodiment, the folding mechanism 60 includes a folding transfer unit 61, two connecting arms 62, and two film sandwiching portions 63. The two connecting arms 62 are respectively connected to the turnover transferring assembly 61 in a transmission manner, and can move along the vertical direction Y6 and along the length direction Y5 of the bearing piece 21 under the driving of the turnover transferring assembly 61, and respectively extend into two sides of the width direction Y4 of the bearing assembly 20 at the top surface hot melting station 14. The two film clamping portions 63 are rotatably disposed on opposite sides of the two connecting arms 62, and are used for clamping two ends of the second surface 302 along the width direction Y4 of the carrier 20, and the rotation axis of the film clamping portions 63 is parallel to the width direction Y4 of the carrier 20.

Referring to fig. 14, after the first face 301 completes the hot-melting of the electrical core 200 and enters the top-face hot-melting station 14, the folding transfer component 61 drives the two connecting arms 62 to approach the bearing component 20, meanwhile, the film clamping portions 63 on the two connecting arms 62 clamp two sides of the second face 302 of the bearing component 20 respectively, after that, the folding transfer component 61 further drives the two connecting arms 62 to move, so that the second face 302 folds around the connecting portion 303, during the folding process, the portion of the second face 302 connected to the connecting portion 303 is turned by about 180 °, however, the portion of the second face 302 clamped by the film clamping portions 63 is not turned, only the horizontal displacement is performed in space, and at this time, if the second face 302 is released directly, the portion has the possibility of being unable to be folded freely, and further the hot-melting of the second face 302 is affected. In this embodiment, the two film clamping portions 63 can also rotate relative to the connecting arm 62, and the rotation axis is the same as the width direction Y4 of the carrying assembly 20, so, in the process of folding the second face 302, the two film clamping portions 63 can drive the clamped portion of the second face 302 to be folded synchronously, and finally, the second face 302 is turned over by about 180 ° integrally and is attached to the top surface 201 of the battery cell 200, thereby ensuring the reliability of hot melting of the second face 302 on the top surface 201 of the battery cell 200. In addition, it should be noted that, in order to facilitate the clamping of the second face portion 302 by the clamping film portion 63, the portion of the second face portion 302 clamped by the clamping film portion 63 is one end of the second face portion 302 away from the first face portion 301, and after the second face portion 302 is folded, the portion is a portion that needs to be thermally fused to the top surface 201, by the rotatable design of the clamping film portion 63, the position of the clamping film portion 63 for clamping the second face portion 302 does not need to be replaced, and even if the position is adjusted, the side of the clamping film portion 63 for clamping the second face portion 302 away from the first face portion 301 is difficult to realize free overturning, so that the folding mechanism 60 of the embodiment not only ensures convenience in clamping the second face portion 302, but also ensures reliability in thermal fusion of the second face portion 302 and the top surface 201 of the battery cell 200.

In this embodiment, referring to fig. 15, the film clamping portion 63 includes a film clamping driving member 631 and two film clamping strips 632, where the two film clamping strips 632 are disposed at intervals along the vertical direction Y6 and are in transmission connection with the film clamping driving member 631, so as to be close to the second face 302 or far away from the second face 302 under the driving of the film clamping driving member 631. The film sandwiching drive 631 may be provided as an air cylinder.

In the present embodiment, referring to fig. 15, the turndown transfer assembly 61 includes a turndown transverse slide 611 and a turndown vertical slide 612. The turnover vertical sliding table 612 is connected to the turnover horizontal sliding table 611, and can be driven by the turnover horizontal sliding table 611 to approach or depart from the bearing assembly 20 along the horizontal plane, and the turnover vertical sliding table 612 is connected to the connecting arm 62 to drive the connecting arm 62 to approach or depart from the bearing assembly 20 in the vertical direction Y6. In other embodiments, the turnover transfer unit 61 may be a six-axis robot.

In this embodiment, referring to fig. 15, the folding mechanism 60 further includes a mounting plate 64, a rotation driving member 651, a rotation shaft 652, and two transmission assemblies 653. The mounting plate 64 is drivingly connected to the fold-over transfer assembly 61. The rotation driving piece 651 is arranged on the mounting plate 64, the rotating shaft 652 is arranged at the output end of the rotation driving piece 651, the two transmission components 653 are arranged at intervals and are respectively arranged on the connecting arm 62, one end of each transmission component 653 is matched with two ends of the rotating shaft 652, and the other end of each transmission component 653 is respectively connected with the two membrane clamping parts 63 in a rotating mode. The rotation driving member 651 may be provided as a motor. The rotation driving member 651 drives the rotation shaft 652 to rotate, and the rotation shaft 652 is driven by the two driving members 653 and drives the two film sandwiching portions 63 to rotate. The transmission component 653 can be a chain gear or a synchronous pulley structure.

In this embodiment, referring to fig. 15, the folding mechanism 60 further includes a film pressing connection plate 66, a film pressing driving member 67, and a film pressing plate 68, where the film pressing connection plate 66 is connected to the two connection arms 62, the film pressing driving member 67 is disposed on the film pressing connection plate 66, and the film pressing plate 68 is connected to the film pressing driving member 67 in a transmission manner and is capable of moving along the vertical direction Y6 under the driving of the film pressing driving member 67 so as to press the second face 302 against the top surface 201.

When the connecting arm 62 is driven by the turnover transfer assembly 61 to approach the positioning block 23 along the length direction Y5 of the bearing assembly 20, the film pressing driving piece 67 drives the film pressing plate 68 to push the second face portion 302 to be abutted against the top surface 201, so that in the bending process of the second face portion 302, the film pressing plate 68 can enable the second face portion 302 to be attached to the top surface 201, air bubbles between the second face portion 302 and the top surface 201 are extruded, tight attachment between the second face portion 302 and the top surface 201 is guaranteed, and the coating effect of the film 300 on the battery cell 200 is improved. In this embodiment, the film pressing driving member 67 may be provided as a cylinder or a motor.

In this embodiment, the connecting arm 62 is bent, so that the connecting plate is located above the film clamping portion 63 in the vertical direction Y6, and thus the movement of the film clamping portion 63 and the scraper will not interfere.

After the second face 302 is folded over the top surface 201 by the folding mechanism 60, the top surface heat-fusing mechanism 52 operates to heat-fuse the second face 302 to the top surface 201.

In this embodiment, referring to fig. 16, the top surface hot-melt mechanism 52 includes an end cap positioning assembly 521 and a top surface hot-melt assembly 522, where the end cap positioning assembly 521 is movably disposed below the turntable 10 and can be close to the top surface hot-melt station 14 to position the end cap 205 of the cell 200 on the carrier assembly 20. The top surface hot melt assembly 522 is movably disposed above the turntable 10 and connected to the frame 17, the top surface hot melt assembly 522 includes a top surface hot melt driving member 5221, a top surface hot melt portion 5224 and a top surface pressure sensor 5222, the top surface pressure sensor 5222 is connected to the top surface hot melt driving member 5221 and the top surface hot melt portion 5224, and the top surface hot melt driving member 5221 is used for driving the top surface hot melt portion 5224 to move and abut against the second surface portion 302 located on the electric core 200, so as to hot melt the second surface portion 302 to the top surface 201.

After the carrier assembly 20 is rotated to the top surface hot-melt station 14, the end cap positioning assembly 521 approaches the carrier assembly 20 from below the turntable 10 and positions the end cap 205 of the cell 200. The top surface heat-melting assembly 522 is close to the bearing assembly 20 from above the turntable 10, and the top surface heat-melting portion 5224 heat-melts the second face portion 302 to the top surface 201 of the cell 200. The top pressure sensor 5222 can detect the acting force applied by the top hot-melt portion 5224 to the second face portion 302 and the battery cell 200 in real time, so as to ensure that the second face portion 302 or the battery cell 200 is not damaged due to excessive pressure, and ensure the reliability of hot-melting the second face portion 302 to the battery cell 200.

In this embodiment, referring to fig. 14, three top surface hot-melt portions 5224 are provided, the output end of the top surface hot-melt driving member 5221 is provided with a top surface hot-melt connection plate 5223, and the three top surface hot-melt portions 5224 are connected to the top surface hot-melt connection plate 5223 by a top surface pressure sensor 5222. The specific structure of the top surface heat-fusible parts 5224 can be referred to as the structure of known heat-fusible parts, and will not be described herein. The top hot melt drive 5221 can be provided as a cylinder or motor.

In this embodiment, referring to fig. 16, the top surface hot melting mechanism 52 further includes a top surface hot melting transfer component 523, where the top surface hot melting transfer component 523 is connected to the top surface hot melting component 522, so as to drive the top surface hot melting component 522 to be close to the turntable 10 before hot melting starts, so as to facilitate hot melting of the first surface 301 and the top surface 201, and drive the top surface hot melting component 522 to be far away from the turntable 10 after hot melting ends, so as to avoid interference to the movement of the turntable 10 to drive the bearing component 20. The top hot melt transfer component 523 in this embodiment may be a linear module or the like.

The top surface hot melt mechanism 52 further includes a top surface hot melt clamping assembly 524, which is connected to the top surface 201 and compresses the driving member, and can be driven by the top surface 201 to approach or separate from the bearing assembly 20. The top surface hot-melt clamping assembly 524 is used for clamping the end cap 205 in the width direction Y4 of the carrier assembly 20, so that the battery cell 200 and the first face 301 correspond to each other in the width direction Y4, and the hot-melt precision of the first face 301 is further improved. The top surface hot-melt clamping assembly 524 includes a top surface clamping driving member 5241 and two top surface hot-melt clamping jaws 5242, wherein the two top surface hot-melt clamping jaws 5242 are arranged at intervals along the width direction Y4 of the bearing assembly 20 and are in transmission connection with the top surface clamping driving member 5241 so as to be close to and positioned and clamped with the end cover 205 or far away from the end cover under the driving of the top surface clamping driving member 5241 so as to release the battery cell 200. The top clamp driving member 5241 can be provided as a double-ended cylinder.

In this embodiment, referring to fig. 17 and 18, the top surface hot melt mechanism 52 further includes an end surface positioning component 525, and the end surface positioning component 525 is connected to the top surface hot melt transfer component 523. The end face positioning assembly 525 includes an end face vertical driver 5251, an end face lateral driver 5252, and an end face positioning portion 5253. The end face transverse driving piece 5252 is in transmission connection with the end face vertical driving piece 5251, and can vertically move under the drive of the end face vertical driving piece 5251, and the end face positioning portion 5253 is in transmission connection with the end face transverse driving piece 5252 and can transversely move under the drive of the end face transverse driving piece 5252.

Before the end cap positioning assembly 521 acts, the end face vertical driving member 5251 drives the end face transverse driving member 5252 and the end face positioning portion 5253 to move upwards until the end face positioning portion 5253 passes through the avoidance opening 28 of the carrier assembly 20, after which, the end face transverse driving member 5252 drives the end face positioning portion 5253 to push the end face 204 of the battery cell 200, so that the battery cell 200 abuts against the positioning block 23 of the carrier assembly 20, and positions the battery cell 200 in the length direction Y5 of the carrier assembly 20. After which the end cap positioning assembly 521 positions the end cap 205.

In this embodiment, referring to fig. 17 and 18, the end cap positioning assembly 521 includes an end cap positioning driver 5211 and an end cap positioning portion 5212, where the end cap positioning driver 5211 is disposed on the frame 17 and is connected to the end cap positioning portion 5212 such that the end cap positioning portion 5212 is adjacent to the end cap 205 in the vertical direction Y6 and positions the end cap 205 by an end cap positioning step 5213 on the end cap positioning portion 5212. Through end cover locating component 521, top surface hot melt clamping component 524 and terminal surface locating component 525, can further improve the location accuracy to electric core 200 upper end cover 205 to reduce the clearance error between second face 302 and the end cover 205 by a wide margin, reduce because the clearance is too little arouses the possibility that end cover 205 produced the explosion point and lead to scrapping in the follow-up welding process, also reduce because of the too big possibility that leads to the hot melt quality of second face 302 and electric core 200 of clearance relatively poor, thereby improve the hot melt quality of film 300 on electric core 200, guarantee follow-up processing reliability. For example, in actual production operation, the gap error is within + -0.5 mm.

During the operation of the top surface hot melting mechanism 52, the film pressing plate 68 of the folding mechanism 60 is kept against the second face 302 on the top surface 201, so as to improve the hot melting effect of the second face 302 on the top surface 201.

After the top surface hot melting mechanism 52 completes the action, the two first opening and closing clamps 711 of the first opening and closing mechanism 71 act, and the movement speed of the first opening and closing driving piece 7111 driving the first opening and closing pushing piece 7112 to be far away from the pushing piece 24 is smaller than the movement speed of the other first opening and closing driving piece 7111 driving the other first opening and closing pushing piece 7112, so that the two elastic pieces 25 sequentially drive the two pushing pieces 24 to push the two sides of the connecting portion 303 to move, and the two ends of the connecting portion 303 sequentially abut against the end face 204 of the battery cell 200, thereby better ensuring that the connecting portion 303 is attached to the end face 204 of the battery cell 200.

Thereafter, the turntable 10 then moves the carrier assembly 20 to the side 203 hot melt station.

In this embodiment, referring to fig. 19, the side ear folding mechanism 53 includes a first folding component 531 and a second folding component 532, the first folding component 531 is disposed above the turntable 10, and the second folding component 532 is disposed below the turntable 10 respectively. The first folding assembly 531 includes a first folding driver 5311, a first clamping driver 5312, and two first folding plates 5313. The first clamping driver 5312 is drivingly connected to the first folding driver 5311. The two first folding plates 5313 are disposed at intervals along the width direction Y4 of the carrying assembly 20 and are drivingly connected to the first clamping driving member 5312. The two first folding plates 5313 can be driven by the first folding driving member 5311 and the first clamping driving member 5312 to approach the first side tab 304 along the vertical direction Y6 and the width direction Y4, so that the first side tab 304 is folded relative to the first face 301 and attached to the two side faces 203 of the battery cell 200. The second folding assembly 532 includes a second folding actuator 5321, a second clamping actuator 5322, and two second folding plates 5323. The second clamping driver 5322 is drivingly connected to the second folding driver 5321. The two second folding plates 5323 are disposed at intervals along the width direction Y4 of the carrying assembly 20 and are drivingly connected to the second clamping drive 5322. The two second folding plates 5323 can be driven by the second folding driving member 5321 and the second clamping driving member 5322 to approach the second side ears 305 along the vertical direction Y6 and the width direction Y4, so that the second side ears 305 are bent relative to the second face 302 and attached to the two side faces 203 of the battery cell 200. In this embodiment, the first folding plate 5313 and the second folding plate 5323 located on the same side of the battery cell 200 are disposed at intervals in the width direction Y4 of the carrying assembly 20, so as to avoid interference during movement.

In this embodiment, referring to fig. 19, the side ear hot-melting mechanism 54 includes a side ear hot-melting driving piece 541, two side ear hot-melting portions 542 and two side ear pressure sensors 543, where the two side ear hot-melting portions 542 are respectively connected to the side ear hot-melting driving piece 541 by transmission of the two side ear pressure sensors 543, and can be driven by the side ear hot-melting driving piece 541 to approach the battery cell 200 along the width direction Y4 of the bearing assembly 20, so as to respectively hot-melt the first side ear 304 and the second side ear 305 on the two side surfaces 203. The first folding plate 5313 is provided with a first relief opening 5314, the second folding plate 5323 is provided with a second relief opening 5324, and the first relief opening 5314 and the second relief opening 5324 are configured to relieve the side ear heat-fusible parts 542.

The two side ear heat-melting portions 542 are disposed at intervals on both sides of the width direction Y4 of the carrier assembly 20.

The side ear hot-melt driving member 541 is disposed on the frame 17, and can drive the two side ear hot-melt portions 542 to approach each other, and respectively pass through the avoiding openings of the first folding plate 5313 and the second folding plate 5323, so as to synchronize the first side ear 304 and the second side ear 305 at the two side surfaces 203 of the hot-melt battery cell 200.

In this embodiment, referring to fig. 19, the Pleurotus heat fusing mechanism 54 further includes a Pleurotus heat fusing adapter plate 544, the Pleurotus heat fusing driving element 541 includes a Pleurotus heat fusing lifting portion 5411 and a Pleurotus heat fusing pushing portion 5412, the Pleurotus heat fusing lifting portion 5411 is connected to the Pleurotus heat fusing adapter plate 544, the Pleurotus heat fusing pushing portion 5412 is fixedly disposed on the Pleurotus heat fusing adapter plate 544, the two Pleurotus heat fusing portions 542 are connected to the Pleurotus heat fusing pushing portion 5412, and the Pleurotus pressure sensor 543 is connected between the Pleurotus heat fusing adapter plate 544 and the Pleurotus heat fusing portion 542. The side ear pressure sensor 543 can detect the acting force applied between the first side ear 304 and the battery cell 200 by the side ear hot melting portion 542 and the acting force between the second side ear 305 and the battery cell 200 in real time, so as to ensure that the first side ear 304, the second side ear 305 or the battery cell 200 cannot be damaged due to excessive pressure, and ensure the reliability of hot melting the first side ear 304 and the second side ear 305 in the battery cell 200.

In this embodiment, referring to fig. 19, the Pleurotus heat-melting mechanism 54 further includes a Pleurotus pressing member 533, which is fixedly disposed on the Pleurotus heat-melting adapter plate 544, where a pressing groove 5331 is disposed on a downward side of the Pleurotus pressing member 533 along the vertical direction Y6, the pressing groove 5331 is approximately U-shaped, and the Pleurotus heat-melting lifting portion 5411 can drive the Pleurotus heat-melting adapter plate 544 to approach the carrier assembly 20 along the vertical direction Y6, and drive the Pleurotus pressing member 533 to approach the carrier assembly 20 along the vertical direction Y6, so that a bottom wall of the pressing groove 5331 abuts against an upper surface of the end cap 205, and simultaneously, two groove side walls of the pressing groove 5331 abut against two side surfaces of the end cap 205 respectively, so as to position the battery core 200 in the width direction Y4 of the carrier assembly 20, and position error accuracy of the battery core 200 in the vertical direction Y6 is reduced, gap error between the first Pleurotus 304, the second Pleurotus 305 and the end cap 205 is greatly reduced, and the possibility that the subsequent welding quality of the battery core 200 is greatly reduced due to the gap between the first Pleurotus 305 and the second Pleurotus 305 is also improved, and the poor welding quality of the battery core 200 is guaranteed. For example, in actual production operation, the gap error is within + -0.5 mm.

In this embodiment, referring to fig. 19, the Pleurotus ostreatus hot melting mechanism 54 further includes a Pleurotus ostreatus transfer component 55, and the Pleurotus ostreatus transfer component 55 is connected with a second folding component 532, so as to drive the second folding component 532 to approach the turntable 10 before the hot melting starts, facilitate the folding action of the second Pleurotus ostreatus 305, and drive the second folding component 532 to depart from the turntable 10 after the hot melting ends, so as to avoid interference to the movement of the turntable 10 to drive the carrying component 20. In this embodiment, the side ear transfer module 55 may be a linear module or the like.

Thereafter, the turntable 10 drives the bearing assembly 20 to move to the blanking station 16, so that the blanking mechanism 80 grabs the battery cell 200 and finishes the blanking action.

In this embodiment, referring to fig. 20, the discharging mechanism 80 includes a discharging slide 81, a discharging driving member 82, a discharging adapter plate 84, and a discharging grasping member 83. The blanking slipway 81 is connected with the blanking adapter plate 84 and is used for driving the blanking adapter plate 84 to be close to or far away from the turntable 10, the blanking driving piece 82 is arranged on the blanking adapter plate 84 and is connected with the blanking grabbing piece 83, so that the blanking grabbing piece 83 is driven to move along the vertical direction Y6 to be close to the bearing assembly 20 and grab the battery cell 200, and then the battery cell 200 is grabbed to the next processing station under the driving of the blanking slipway 81. In this embodiment, the discharging sliding table 81 is a linear sliding table, and the discharging driving member 82 may be a cylinder.

In this embodiment, referring to fig. 20, the discharging grasping member 83 includes a discharging rotation driving member 831, a discharging grasping cylinder 832, two discharging jaws 833, and a discharging pressing member 834. The blanking rotary driving member 831 is arranged at the output end of the blanking driving member 82, the blanking clamping cylinder 832 is in transmission connection with the blanking rotary driving member 831 so as to rotate under the driving of the blanking rotary driving member 831, the two blanking clamping jaws 833 are in transmission connection with the blanking clamping cylinder 832 and are arranged at intervals, and the blanking clamping cylinder 832 is used for driving the two blanking clamping jaws 833 to approach to grasp the battery cell 200 or to be away from to place the battery cell 200. The discharging gripper 833 has an L shape to support the battery cell 200 during the gripping process. The unloading compresses tightly piece 834 locates the stiff end of unloading clamp air cylinder 832 to be equipped with two, two unloading compress tightly pieces 834 respectively with the horizontal segment of two unloading clamp claws 833 set up corresponding, in order to centre gripping electric core 200 in vertical direction Y6, thereby guarantee the transport reliability of electric core 200 unloading in-process.

The specific workflow of the encapsulation tool 100 of this embodiment is as follows:

the turntable 10 drives the carrying assembly 20 to move to the film material loading station 11, and the second opening and closing mechanism 72 drives the clamping member 22 and the pushing member 24 on the carrying assembly 20 to move so as to provide a placing space for the film material 300.

The film material feeding mechanism 30 grabs the unfolded film material 300 and drives the film material 300 to move, the film material 300 is placed on the bearing component 20 at the film material feeding station 11, two positioning holes 306 of the film material 300 are matched with two positioning protrusions 214 on the bearing component 20, and positioning of the film material 300 on the bearing component 20 is achieved. The second opening and closing mechanism 72 is remote from the clamp member 22 and the pusher member 24.

The rotary table 10 drives the bearing assembly 20 to move to the battery cell loading station 12, and the second opening and closing mechanism 72 drives the clamping piece 22 and the pushing piece 24 on the bearing assembly 20 to move so as to provide a placing space for the battery cell 200.

The battery cell feeding mechanism 40 grabs the battery cell 200 and drives the battery cell 200 to move, the battery cell 200 is placed on the first part of the membrane material 300 on the bearing assembly 20, the second opening and closing mechanism 72 is far away from the clamping piece 22 and the pushing piece 24, and the clamping piece 22 and the pushing piece 24 move under the drive of the elastic piece 25 and perform preliminary positioning on the battery cell 200.

The turntable 10 drives the bearing assembly 20 to move to the bottom surface hot melting station 13, and the bottom surface pressing assembly 511 of the bottom surface hot melting mechanism 51 presses the end cover 205 of the battery cell 200 on the bearing assembly 20 from the upper side of the turntable 10, and the bottom surface hot melting assembly 512 thermally melts the first face 301 on the bottom surface 202 from the lower side of the turntable 10.

The turntable 10 drives the carrying assembly 20 to move to the top surface hot melting station 14, and the first opening mechanism drives the clamping member 22 and the pushing member 24 on the carrying assembly 20 to move so as to release the battery cell 200. The turnover mechanism 60 clamps the second surface 302 and drives the second surface 302 to turn around the connection portion 303 to the top surface 201 of the battery cell 200, and the second surface 302 is attached to the top surface 201.

The end surface positioning component 525 of the top surface hot melting mechanism 52 passes through the avoiding opening 28 of the bearing component 20 and cooperates with the positioning block 23 to position the end cover 205 of the battery cell 200 in the length direction Y5 of the bearing component 20. Thereafter, the cap positioning assembly 521 is moved from below the turntable 10 and precisely positions the cap 205 by the cap positioning step 5213. The top hot melt clamping assembly 524 acts in the width direction Y4 of the carrier assembly 20 and clamps the cells 200 to position the cells 200. The top surface heat staking assembly 522 heat stakes the second face 302 to the top surface 201. After the heat staking is completed, the end face positioning assembly 525, the top face heat staking assembly 524, the tucking mechanism 60, etc. are sequentially remote from the carrier assembly 20. The two first opening and closing clamps 711 of the first opening and closing mechanism 71 are successively far away from the two pushing members 24, so that the two elastic members 25 successively drive the two pushing members 24 to push the first end 303a and the second end 303b to move and successively abut against the end face 204 of the battery cell 200, thereby ensuring that the connecting portion 303 is attached to the end face 204 of the battery cell 200. The second opening and closing clamp 712 of the first opening and closing mechanism 71 further drives the clamping member 22 to clamp the battery cell 200 by pushing the sliding member 26 to perform the clamping action of the battery cell 200 on the bearing assembly 20.

The turntable 10 drives the bearing assembly 20 to move to the side 203 hot melting station, and the second opening and closing mechanism 72 drives the clamping piece 22 and the pushing piece 24 on the bearing assembly 20 to move so as to provide a hot melting space of the side ears. The side ear folding mechanism 53 folds the first side ear 304 and the second side ear 305 and keeps the first side ear 304 and the second side ear 305 attached to the two side surfaces 203 of the battery cell 200, the side ear pressing member 533 of the side ear hot-melt mechanism 54 presses the end cover 205 against the carrier assembly 20 so as to position the battery cell 200 in the vertical direction Y6, and then the side ear hot-melt driving member 541 drives the side ear hot-melt portion 542 to pass through the avoiding opening, so that the first side ear 304 and the second side ear 305 are hot-melt to the side surfaces 203 of the battery cell 200. Thereafter, the side ear folding mechanism 53 and the side ear hot melting mechanism 54 are far away from the bearing assembly 20, and the second opening and closing mechanism 72 drives the clamping piece 22 and the pushing piece 24 on the bearing assembly 20 to clamp the battery cell 200 and the film 300 after hot melting.

The rotary table 10 drives the carrying assembly 20 to move to the blanking station 16, and the clamping member 22 and the pushing member 24 are positioned on the battery cell 200, at this time, the second opening and closing mechanism 72 drives the clamping member 22 and the pushing member 24 on the carrying assembly 20 to move, and the blanking sliding table 81 and the blanking driving member 82 of the blanking mechanism 80 drive the blanking grabbing member 83 to approach the carrying assembly 20, grab the battery cell 200 after being melted, and send the battery cell to the next processing station.

The second opening and closing mechanism 72 moves away from the clamping member 22 and the pushing member 24 on the bearing assembly 20, and the turntable 10 drives the bearing assembly 20 to move to the film material feeding station 11 for further processing of the battery cell 200 and the film material 300.

According to the coating equipment 100 of the embodiment, the action of each station can be controlled to be completed within 6 seconds, the precision of the gap between the hot melting position of the film 300 and the battery cell 200 and the end cover 205 is accurate, the error is low and is within +/-0.5 mm, the possibility of explosion points generated when the end cover 205 is welded in the subsequent steps can be greatly reduced, the welding reliability of the film 300 and the battery cell 200 can be improved, and the possibility of falling off of the film 300 is greatly reduced. Through the action design of the folding mechanism 60 and the first opening and closing clamp 711, the film 300 can be well ensured to be firmly and reliably thermally fused to the battery cell 200, thereby remarkably improving the safety quality of the product. Meanwhile, the working efficiency of the coating equipment 100 can reach 10ppm, and the coating equipment can stably and efficiently run for a long time, and the driving structures of the clamping piece 22 and the pushing piece 24 on the bearing assembly 20 are independent of the outer side of the turntable 10, so that the real-time maintenance of the coating equipment 100 can be facilitated.

The embodiment also provides a coating method, which comprises the following steps based on the coating device 100: the turntable 10 drives the bearing assembly 20 to enter the film material feeding station 11, and the film material feeding mechanism 30 places the unfolded film material 300 on the bearing assembly 20; the rotary table 10 drives the bearing assembly 20 to enter the battery cell feeding station 12, the battery cell feeding mechanism 40 places the battery cell 200 on the first surface 301 of the film 300, and the clamping piece 22 and the two pushing pieces 24 of the bearing assembly 20 clamp the battery cell 200; the rotary table 10 drives the bearing assembly 20 to enter the bottom surface hot melting station 13, and the bottom surface hot melting mechanism 51 thermally melts the first surface 301 on the bottom surface 202 of the battery cell 200; the turntable 10 drives the bearing assembly 20 to enter the top surface hot melting station 14, the clamping piece 22 and the two pushing pieces 24 release the electric core 200, the turnover mechanism 60 drives the second face 302 of the film 300 to be turned over to the top surface 201 of the electric core 200, the second face 302 keeps being attached to the top surface 201, the two pushing pieces 24 push the two ends of the connecting portion 303 in sequence, so that the two ends of the connecting portion 303 are attached to the two ends of the end surface 204 in sequence, and the two sides of the end cover 205 in the second direction Y2 are abutted to the positioning blocks 23 on the bearing assembly 20 in sequence; the top surface heat-fusing mechanism 52 heat-fuses the second face portion 302 to the top surface 201.

According to the coating method of the embodiment, the film 300 can be well ensured to be firmly and reliably thermally fused on the battery cell 200, so that the film 300 can be stably and reliably attached to the surface of the battery cell 200 everywhere, and the safety quality of products is obviously improved.

The above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present application.

Claims

1. The utility model provides a diolame equipment for with the membrane material hot melt in electric core, electric core includes along top surface and the bottom surface of first direction interval setting, two side that set up along the second direction interval and along terminal surface and the end cover that the third direction interval set up, the top surface, the bottom surface the side the terminal surface with the end cover is connected gradually and is enclosed into electric core, the membrane material includes first facial, second facial and connecting portion, first facial is used for laminating in the top surface, the second facial is used for laminating in the bottom surface, connecting portion connect in first facial with the second facial is used for laminating in the terminal surface, its characterized in that, diolame equipment includes:

A turntable rotatably provided;

the bearing component is connected to the turntable and can move to a film material feeding station, a battery cell feeding station, a bottom surface hot melting station and a top surface hot melting station under the drive of the turntable, the bearing component comprises a bearing piece, a clamping piece, a positioning block and two pushing pieces, the bearing piece is used for adsorbing the film material and bearing the battery cell, the clamping piece is arranged on the bearing piece and is used for respectively propping against two side surfaces along the width direction of the bearing piece so as to clamp the battery cell, the positioning block and the two pushing pieces are arranged at intervals along the length direction of the bearing piece, and the two pushing pieces are used for propping against the end surface and pushing the end cover of the battery cell to prop against the positioning block;

the film material feeding mechanism is arranged at the film material feeding station and used for placing the unfolded film material in the bearing assembly;

the battery cell feeding mechanism is arranged at the battery cell feeding station and is used for placing a battery cell on the first face of the membrane material on the bearing assembly and enabling the battery cell to be positioned between the positioning block and the two pushing pieces;

the bottom surface hot melting mechanism is arranged at the bottom surface hot melting station and used for hot melting the first surface part on the bottom surface;

The turnover mechanism is arranged at the top surface hot melting station and is used for turnover the second surface part to the top surface of the battery cell, and the two pushing pieces can respectively push the two ends of the connecting part after the second surface part is turned over to the top surface, so that the two ends of the connecting part are sequentially attached to the two ends of the end surface, and the two sides of the end cover along the second direction are sequentially abutted to the positioning block;

the turnover mechanism comprises a transfer component, two connecting arms, two film clamping parts, a film pressing connecting plate, a film pressing driving piece and a film pressing plate;

the two connecting arms are respectively connected with the transfer assembly in a transmission way, can move along the vertical direction and along the length direction of the bearing piece under the drive of the transfer assembly, and respectively extend into two sides of the width direction of the bearing assembly at the top surface hot melting station;

the two membrane clamping parts are respectively and rotatably arranged on one side of the two connecting arms, which are oppositely arranged, and are respectively used for clamping two ends of the second surface part along the width direction of the bearing assembly, and the rotation axis of the membrane clamping parts is parallel to the width direction of the bearing assembly;

the film pressing driving piece is arranged on the film pressing connecting plate, the film pressing plate is connected to the film pressing driving piece in a transmission way and can move in the vertical direction under the driving of the film pressing driving piece so as to press the second face part on the top surface;

The top surface hot melting mechanism is arranged at the top surface hot melting station and used for hot melting the second surface part on the top surface;

two first side ears are respectively arranged on two sides of the first face, two second side ears are respectively arranged on two sides of the second face, the two first side ears are respectively used for being attached to the two side faces, and the two second side ears are respectively used for being attached to the two side faces;

the turntable is also provided with a side hot melting station, the coating equipment further comprises a side ear folding mechanism and a side ear hot melting mechanism, and the side ear folding mechanism and the side ear hot melting mechanism are both arranged at the side hot melting station; the side ear folding mechanism is movably arranged relative to the rotary table, the side ear folding mechanism comprises a first folding component and a second folding component, the first folding component is arranged above the rotary table, the second folding component is arranged below the rotary table, the first folding component is used for approaching the bearing component from the upper part of the rotary table, and folding two first side ears to enable the first side ears to be attached to two side surfaces, and the second folding component is used for approaching the bearing component from the lower part of the rotary table, and folding two second side ears to enable the second side ears to be attached to two side surfaces;

The side ear hot melting mechanism is used for hot melting the first side ear and the second side ear on the two side surfaces.

2. The encapsulation tool of claim 1, wherein:

the bearing assembly further comprises a plurality of elastic pieces, one part of the elastic pieces are elastically supported between the bearing piece and the clamping piece so that the clamping piece can keep clamping the battery cell, and the other part of the elastic pieces are elastically supported between the bearing piece and the pushing pieces so that the two pushing pieces press the battery cell against the positioning block;

the coating equipment further comprises a first opening and closing mechanism, the first opening and closing mechanism is arranged on the top surface hot melting station, the first opening and closing mechanism comprises two first opening and closing clamps, the two first opening and closing clamps are respectively used for synchronously pushing the two pushing pieces, the two pushing pieces overcome the elastic force of the elastic pieces to be far away from the positioning block, and the two pushing pieces are respectively and successively far away from the two pushing pieces, so that the two elastic pieces successively drive the two pushing pieces to push the two sides of the connecting portion to move, and the two ends of the connecting portion successively lean against the end face of the battery cell.

3. The encapsulation tool of claim 2, wherein:

the first opening and closing clamp comprises a first opening and closing driving piece and a first opening and closing pushing piece, the first opening and closing driving piece is connected with the first opening and closing pushing piece and is used for driving the two first opening and closing pushing pieces to push the two pushing pieces to move along the length direction of the bearing piece, the pushing speed of the two first opening and closing driving pieces can be adjusted, one first opening and closing driving piece drives the first opening and closing pushing piece to move far away from the pushing piece at a speed smaller than that of the other first opening and closing driving piece drives the other first opening and closing pushing piece, so that the two elastic pieces drive the two pushing pieces to push the two sides of the connecting portion to move sequentially, and two ends of the connecting portion are propped against the end face of the electric core sequentially.

4. The encapsulation tool of claim 1, wherein:

the bearing assembly further comprises a sliding part, the sliding part is slidably arranged on the lower surface of the bearing part along the length direction of the bearing part, the sliding part is provided with two inclined long holes symmetrically arranged along the axis of the bearing part, and the extending direction of the inclined long holes is positioned between the length direction and the width direction of the bearing part;

The clamping piece comprises two clamping parts, the two clamping parts are arranged at intervals along the width direction of the bearing piece, the two clamping parts are respectively provided with a matching bulge, and the two matching bulges are respectively matched with the two inclined long holes;

the two pushing pieces are respectively and slidably arranged on the two clamping parts along the length direction of the bearing piece.

5. The encapsulation tool of claim 1, wherein:

the membrane clamping part comprises a membrane clamping driving piece and two membrane clamping strips, wherein the two membrane clamping strips are arranged at intervals along the vertical direction and are in transmission connection with the membrane clamping driving piece so as to be close to or far away from the second face part to be clamped under the driving of the membrane clamping driving piece.

6. The encapsulation tool of claim 1, wherein:

the bottom surface hot melting mechanism comprises a bottom surface pressing component and a bottom surface hot melting component, wherein the bottom surface pressing component is movably arranged above the turntable and can be close to the bottom surface hot melting station so as to press the battery cell on the bearing component; the bottom surface hot melt subassembly is movably located the below of carousel, the bottom surface hot melt subassembly includes bottom surface hot melt driving piece and bottom surface hot melt portion and bottom surface pressure sensor, bottom surface pressure sensor connect in the bottom surface hot melt driving piece with bottom surface hot melt portion, the bottom surface hot melt driving piece is used for driving bottom surface hot melt portion motion and butt in be located on the carrier assembly first face, in order will first face hot melt in the bottom surface.

7. The encapsulation tool of claim 1, wherein:

the top surface hot melting mechanism comprises an end cover positioning assembly and a top surface hot melting assembly, wherein the end cover positioning assembly is movably arranged below the turntable and can be close to the top surface hot melting station so as to position the end cover of the battery cell on the bearing assembly; the top surface hot melt subassembly is movably located the top of carousel, top surface hot melt subassembly includes top surface hot melt driving piece and top surface hot melt portion and top surface pressure sensor, top surface pressure sensor connect in top surface hot melt driving piece with top surface hot melt portion, top surface hot melt driving piece is used for driving top surface hot melt portion motion and butt in being located second facial on the electric core, in order will the second facial portion hot melt in the top surface.

8. The encapsulation tool of claim 1, wherein:

the side ear hot melting mechanism comprises a side ear hot melting driving piece, two side ear hot melting parts and two side ear pressure sensors, wherein the two side ear hot melting parts are respectively connected with the side ear hot melting driving piece through two side ear pressure sensor transmissions, and the side ear hot melting driving piece can drive the side ear hot melting driving piece to approach to the battery cell along the width direction of the bearing assembly so as to enable the first side ear and the second side ear to be respectively hot melted on the two side faces.

9. A coating method, characterized in that it is based on a coating apparatus according to any one of claims 1 to 8, comprising:

the turntable drives the bearing assembly to enter a film material feeding station, and the film material feeding mechanism places the unfolded film material on the bearing assembly;

the rotary table drives the bearing assembly to enter a battery cell feeding station, the battery cell feeding mechanism places a battery cell on the first face of the film material, and the clamping piece and the two pushing pieces of the bearing assembly clamp the battery cell;

the rotary table drives the bearing assembly to enter a bottom surface hot melting station, and the bottom surface hot melting mechanism is used for hot melting the first surface part on the bottom surface of the battery cell;

the turntable drives the bearing assembly to enter a top surface hot melting station, the clamping piece and the two pushing pieces release the battery cell, the turnover mechanism drives the second face part of the film material to turn over to the top surface of the battery cell, the second face part keeps attached to the top surface, the two pushing pieces push the two ends of the connecting part in sequence, so that the two ends of the connecting part are attached to the two ends of the end surface in sequence, and the two sides of the end cover in the second direction are abutted to the positioning blocks on the bearing assembly in sequence;

the top surface hot melting mechanism is used for hot melting the second surface part on the top surface.