CN109301351B - Automatic lamination stacking machine for lithium battery pole pieces - Google Patents

Automatic lamination stacking machine for lithium battery pole pieces Download PDF

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Publication number
CN109301351B
CN109301351B CN201810989175.8A CN201810989175A CN109301351B CN 109301351 B CN109301351 B CN 109301351B CN 201810989175 A CN201810989175 A CN 201810989175A CN 109301351 B CN109301351 B CN 109301351B
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positioning
plate
guide
cavity
piece
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CN109301351A (en
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易秋林
吴泽元
黄龙
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Huizhou Huiyi Machinery Equipment Co ltd
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Huizhou Huiyi Machinery Equipment Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/05Accumulators with non-aqueous electrolyte
    • H01M10/058Construction or manufacture
    • H01M10/0585Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses an automatic lamination machine for lithium battery pole pieces, which comprises a machine table and a translation mechanism arranged on the machine table; the device comprises a machine table, a plurality of groups of feeding mechanisms, a plurality of stacking positioning modules, a plurality of correcting mechanisms and four groups of negative pressure suction mechanisms, wherein the machine table is provided with a plurality of supporting pieces; the four groups of feeding mechanisms are symmetrically positioned on two sides of the supporting piece; the translation mechanism pushes the negative pressure suction mechanism to move, so that the negative pressure suction mechanism respectively adsorbs positive pole pieces, positive diaphragms, negative pole pieces and negative diaphragms which are arranged in the four groups of feeding mechanisms to the correction mechanism for correction, and the negative pole pieces, the positive diaphragms, the negative diaphragms and the correction mechanism are positioned in the lamination positioning module for lamination. Manual superposition is replaced, and efficiency is improved; and the pole piece and the diaphragm before being superposed are positioned by the correcting mechanism, so that the superposition precision is improved.

Description

Automatic lamination stacking machine for lithium battery pole pieces
Technical Field
The invention relates to the field of lithium battery production equipment, in particular to an automatic lamination machine for lithium battery pole pieces.
Background
Positive plate, diaphragm and negative pole piece among the high energy density lithium cell are folding each other, and the tradition adopts the manual work to adopt tweezers to press from both sides to get the location and stack in the stack mould with positive plate, diaphragm and negative pole piece each other, and artifical superimposed work load is big, and is inefficient. In view of the above drawbacks, it is necessary to design an automatic lamination machine for lithium battery pole pieces.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the automatic lamination machine for the lithium battery pole pieces is provided to solve the problems that the workload is large and the efficiency is low due to the fact that the positive pole piece, the diaphragm and the negative pole piece of the existing battery are mutually overlapped and depend on manual operation.
In order to solve the technical problems, the technical scheme of the invention is as follows: the automatic lamination machine for the lithium battery pole pieces comprises a machine table and a translation mechanism arranged on the machine table; the device comprises a machine table, a plurality of groups of feeding mechanisms, a plurality of stacking positioning modules, a plurality of correcting mechanisms and four groups of negative pressure suction mechanisms, wherein the machine table is provided with a plurality of supporting pieces; the four groups of feeding mechanisms are symmetrically positioned on two sides of the supporting piece; the translation mechanism pushes the negative pressure suction mechanism to move, so that the negative pressure suction mechanism respectively adsorbs positive pole pieces, positive diaphragms, negative pole pieces and negative diaphragms which are arranged in the four groups of feeding mechanisms to the correction mechanism for correction, and the negative pole pieces, the positive diaphragms, the negative diaphragms and the correction mechanism are positioned in the lamination positioning module for lamination.
Further, the feeding mechanism comprises a support plate arranged on the machine table, and two mounting side plates and a bottom plate are arranged on the two mounting side plates of the support plate; the two installation side plates are oppositely installed at the bottom of the carrier plate and extend into the cavity of the machine table, and the bottom plate is connected to the bottom ends of the two installation side plates; the top of the support plate is provided with a plurality of groups of pole piece positioning guide mechanisms and limiting mechanisms; the limiting mechanism fixes the pole piece positioning guide mechanism on the top of the support plate; the pole piece positioning and guiding mechanism comprises a positioning seat, a positioning track and a stripping mechanism; the positioning seat is arranged at the top of the carrier plate, a positioning cavity is arranged at the top of the positioning seat, the lower end of the positioning track is in clearance fit with the positioning cavity, a positioning guide cavity is arranged in the positioning track, the positioning guide cavity penetrates from the upper end to the bottom end of the positioning track, and a push block in sliding connection with the positioning guide cavity is arranged at the lower end of the positioning guide cavity; the stripping mechanism is arranged at the top of the positioning track; the bottom plate is provided with a stepping pushing mechanism, and the telescopic end of the stepping pushing mechanism is connected with the push block.
Furthermore, the limiting mechanism comprises a first limiting block and a second limiting block which respectively limit and clamp a plurality of groups of positioning seats at the front end and the rear end, a connecting plate which connects the end parts of the first limiting block and the second limiting block, an adjusting locking member which is arranged on the connecting plate, an adjustable positioning assembly which is arranged on the carrier plate, a positioning plate which is arranged at the top of the second limiting block, and floating pressing assemblies which are arranged on the first limiting block and correspond to the positioning rails in number, wherein the floating pressing assemblies press the corresponding positioning rails; the adjustable positioning assembly and the adjustable locking member are oppositely arranged; the adjusting locking piece tightly presses the positioning seat at the right end, so that the positioning seat at the left end is abutted to the adjustable positioning assembly;
the adjustable positioning assembly comprises a fixed seat arranged at the top of the carrier plate, a positioning rod which passes through the fixed seat in a sliding manner and is abutted against the positioning seat, and a locking screw which is arranged at the top of the fixed seat and locks the positioning rod;
the stepping pushing mechanism comprises a motor arranged at the bottom of the bottom plate, a screw rod pair arranged on a rotating shaft of the motor, a connecting plate fixedly connected with a nut of the screw rod pair, a push rod arranged at the top of the connecting plate, a guide rod arranged at the bottom of the connecting plate and a guide sleeve slidably sleeved on the guide rod; the guide sleeve is fixedly connected with the bottom plate, and the push rod is fixedly connected with the push block; the motor is a stepping motor or a servo motor.
Further, the stripping mechanism comprises a base plate, a first blocking piece, a partition plate, a second blocking piece and a cover plate which are sequentially superposed on the positioning track, and screws sequentially penetrate through the cover plate to be connected with the positioning track in a locking mode; the base plate, the first blocking piece, the partition plate, the second blocking piece and the cover plate are all provided with a clearance cavity; the first blocking piece and the second blocking piece are both provided with stripping pieces extending towards the inner side of the cavity avoiding body.
Furthermore, the lamination positioning module comprises a positioning plate, an adjusting and positioning mechanism, an elastic pressing assembly and a replaceable positioning die; the elastic pressing assembly and the positioning plate are arranged on the supporting piece in parallel; the adjusting and positioning mechanism is arranged at one end of a gap formed by the elastic pressing assembly and the positioning plate; the elastic pressing assembly presses the positioning mould to one side of the positioning plate, and one end of the positioning mould is abutted to the adjustable positioning mechanism; the positioning die comprises a die plate and a positioning inner die; a plurality of positioning cavities are formed in the die plate, and a plurality of positioning inner dies are in clearance fit with the positioning cavities; a sliding chute is arranged on one side of the positioning cavity, a pressing block and a compression spring for extruding the pressing block to press the positioning inner die in the positioning cavity are arranged in the sliding chute; and a limiting plate for limiting the pressing block is arranged at the top of the die plate.
Furthermore, the elastic pressing assembly comprises a fixing plate, a pressing plate, a second guide rod and an extrusion spring; the fixed plate is arranged on the supporting piece, two ends of the fixed plate are respectively provided with a guide boss extending towards the direction of the positioning plate, and the pressing plate is arranged between the two guide bosses in a sliding manner; the plurality of extrusion springs are arranged between the fixed plate and the pressing plate; one end of each of the two second guide rods is fixedly connected with the pressing plate, and the other end of each of the two second guide rods penetrates through the fixing plate in a sliding manner;
the adjusting and positioning mechanism comprises a fixed seat and an adjusting screw rod which are arranged on the supporting piece; the fixing seat is provided with a thread through hole, and the adjusting screw rod is in thread fit with the thread.
Furthermore, the correcting mechanism comprises a positioning body, a correcting die, a transverse positioning push block and a longitudinal positioning push block; the correcting die is arranged on one side of the positioning cavity, and a clearance is arranged between the correcting die and the other side of the positioning cavity; one side of the correcting die, which is close to the vacancy avoiding position, is provided with an open positioning cavity, and the transverse positioning pushing block and the longitudinal positioning pushing block are arranged in the vacancy avoiding position; the first pushing mechanism and the second pushing mechanism respectively push the transverse positioning push block, the longitudinal positioning push block and the positioning cavity to form a complete pole piece positioning cavity of the battery pole piece; and the bottom of the positioning cavity is provided with an air suction hole communicated with an air pipe of the negative pressure device.
Further, the positioning cavity comprises a pole piece body cavity and a pole lug cavity; the air suction hole is formed in the bottom of the pole piece body cavity, and the bottom of the lug cavity is also provided with a light sensor;
the first pushing mechanism comprises a first air cylinder, a guide rail and a first sliding block; the bottom end of the support piece close to the vacancy avoiding position is also provided with a vacancy avoiding step, the guide rail is arranged on the vacancy avoiding step, the first sliding block is arranged on the guide rail, the first air cylinder is arranged on one side of the positioning body, and the first air cylinder pushes the first sliding block to slide along the guide rail; the transverse positioning push block is arranged on the first sliding block;
the second pushing mechanism comprises a second guide rail arranged at the bottom of the supporting piece, a second sliding block arranged on the second guide rail, a connecting piece arranged on the second sliding block, and a second air cylinder arranged at the bottom of the supporting piece and used for pushing the second sliding block to slide along the second guide rail; the connecting piece passes clearance groove on the support piece and stretches into in the positioning cavity, the longitudinal positioning ejector pad is located the connection.
Further, the negative pressure suction mechanism comprises a mounting plate arranged on the translation mechanism, a third pushing mechanism arranged on the mounting plate, a connecting rod arranged at the telescopic end of the third pushing mechanism, a first compression spring sleeved on the connecting rod, a connecting plate in sliding connection with the lower end of the connecting rod, a guide assembly arranged at the bottom end of the connecting plate, and a negative pressure suction head assembly arranged at the lower end of the guide assembly; the upper end of connecting rod is equipped with first compression spring's limiting plate, the lower extreme of connecting rod is located spacingly the second stopper of connecting plate bottom.
Further, the third pushing mechanism comprises a supporting plate arranged on one side of the mounting plate and a third air cylinder arranged on the supporting plate; a piston rod of the third cylinder is fixedly connected with the connecting rod;
the guide assembly comprises a guide seat arranged on one side of the mounting plate, two linear bearings arranged in the guide seat in parallel, two guide rods respectively penetrating through the two linear bearings, and a second connecting plate at the lower ends of the two guide rods; the negative pressure suction head assembly is arranged at the bottom of the second connecting plate;
the negative pressure suction head assembly comprises two second linear bearings arranged in the second connecting plate, two second guide rods respectively penetrating through the two second linear bearings, a suction head connected with the lower ends of the two second guide rods, and a second compression spring arranged between the suction head and the second connecting plate; the bottom of the suction head is arranged on an adsorption hole which is communicated with a negative pressure device pipeline.
Compared with the prior art, the automatic lamination machine for the lithium battery pole piece has the following beneficial effects:
the translation mechanism pushes the negative pressure suction mechanism to move, so that the negative pressure suction mechanism respectively sucks the positive pole pieces, the positive diaphragm, the negative pole pieces and the negative diaphragm which are arranged in the four groups of feeding mechanisms to the correction mechanism for correction, and then the positive pole pieces, the negative pole pieces and the negative diaphragm are positioned in the lamination positioning module for superposition molding, thereby replacing manual superposition and improving the efficiency; and the pole piece and the diaphragm before being superposed are positioned by the correcting mechanism, so that the superposition precision is improved.
Drawings
FIG. 1 is a block diagram of a prior art automatic lamination machine for lithium battery pole pieces;
FIG. 2 is a front view of an automatic lamination machine for lithium battery pole pieces of the present invention;
FIG. 3 is a structural diagram of the feeding mechanism of the automatic lithium battery pole piece laminating machine of the present invention;
FIG. 4 is a front view of the feeding mechanism of the automatic lithium battery pole piece lamination machine of the present invention;
FIG. 5 is a structural diagram of the guide mechanism of the automatic lithium battery pole piece lamination machine of the present invention;
FIG. 6 is an exploded view of the positioning track portion of the automatic lithium battery pole piece lamination machine of the present invention;
FIG. 7 is a structural diagram of the floating pressing mechanism of the automatic lamination machine for lithium battery pole pieces of the present invention;
FIG. 8 is a block diagram of the lamination positioning module of the automatic lamination machine for lithium battery electrode plates of the present invention;
FIG. 9 is a front view of the lamination positioning module of the automatic lamination machine for lithium battery pole pieces of the present invention;
FIG. 10 is a structural diagram of the positioning mold part of the automatic lithium battery pole piece laminating machine of the present invention;
FIG. 11 is a front view of the positioning mold of the automatic lithium battery pole piece lamination machine of the present invention;
FIG. 12 is a structural diagram of the positioning body of the automatic lithium battery pole piece laminating machine of the present invention;
FIG. 13 is a schematic diagram of the first pushing mechanism of the automatic lithium battery pole piece laminating machine of the present invention;
FIG. 14 is a schematic diagram of a second pushing mechanism of the automatic lamination machine for lithium battery electrode sheets of the present invention;
FIG. 15 is a structural diagram of the negative pressure suction mechanism of the automatic lamination machine for lithium battery pole pieces of the present invention;
FIG. 16 is a structural view of the reverse side of the translation mechanism of the automatic lithium battery pole piece lamination machine of the present invention;
fig. 17 is a front structural view of the translation mechanism of the automatic lithium battery pole piece lamination machine of the present invention.
Detailed Description
The following detailed description will be further described in conjunction with the above-identified drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments. It will be apparent, however, to one skilled in the art, that the described embodiments may be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail.
As shown in fig. 1-2, the automatic lamination machine for lithium battery pole pieces comprises a machine table 1 and a translation mechanism 2 arranged on the machine table 1; the device also comprises a support member 3 arranged on the machine table 1, four groups of feeding mechanisms 4, a lamination positioning module 5 arranged on the support member 3, correction mechanisms 6 arranged on two sides of the lamination positioning module 5, and four groups of negative pressure suction mechanisms 7 arranged on the translation mechanism 2; four sets of the feeding mechanisms 4 are symmetrically positioned on both sides of the supporting member 3. Translation mechanism 2 promotes negative pressure suction means 7 moves, makes negative pressure suction means 7 adsorbs the setting respectively and is in four positive pole piece, positive diaphragm, negative pole piece and negative diaphragm in feed mechanism 4 arrive 6 corrections of aligning gear, the back location is in the shaping of superpose in lamination location module 5. The positive plates, the negative plates and the diaphragms can be stacked in the corresponding feeding mechanisms 4, the translation mechanism 2 pushes the negative pressure suction mechanism 7 to move, so that the negative pressure suction mechanism 7 respectively sucks the positive plates, the positive diaphragms, the negative plates and the negative diaphragms which are arranged in the four groups of feeding mechanisms 4 to the correction mechanism 6 for correction, and the positive plates, the negative plates and the negative diaphragms are positioned in the lamination positioning module 5 for stacking and forming, thereby replacing manual stacking and improving the efficiency; and the pole piece and the diaphragm before being superposed are positioned by the correcting mechanism 6, so that the superposition precision is improved.
Further, as shown in fig. 3-7, the feeding mechanism 4 includes a carrier plate 40 disposed on the machine platform 1, and two mounting side plates 41 and a bottom plate 42 disposed on two sides of the carrier plate 40; the two installation side plates 41 are oppositely installed at the bottom of the carrier plate 40 and extend into the cavity of the machine table 1, and the bottom plate 42 is connected to the bottom ends of the two installation side plates 41; the top of the carrier plate 40 is provided with a plurality of sets of pole piece positioning guide mechanisms 43 and limiting mechanisms 44; the limiting mechanism 44 fixes the pole piece positioning and guiding mechanism 43 on the top of the carrier plate 40.
The pole piece positioning and guiding mechanism 43 comprises a positioning seat 430, a positioning rail 431 and a stripping mechanism 432; the positioning seat 430 is arranged at the top of the carrier plate 40, a positioning cavity is arranged at the top of the positioning seat 430, the lower end of the positioning rail 431 is in clearance fit with the positioning cavity, a positioning guide cavity is arranged in the positioning rail 431, the positioning guide cavity penetrates from the upper end to the bottom end of the positioning rail 431, and a push block 434 in sliding connection with the positioning guide cavity is arranged at the lower end of the positioning guide cavity; the stripping mechanism 433 is arranged at the top of the positioning rail 431; the bottom plate 42 is provided with a stepping pushing mechanism 45, and the telescopic end of the stepping pushing mechanism 45 is connected with the push block 434. When the pole pieces in the positioning guide cavity need to be taken out, the pole pieces can be pushed upwards by the stepping pushing mechanism 45, the pole pieces on the topmost layer are sucked by the negative pressure sucking mechanism 7, and under the action of the stripping mechanism 433, the pole pieces at the bottom of the sucked pole pieces are separated from the sucked pole pieces, so that only one pole piece is sucked at each time, and when one pole piece is sucked at each time, the stepping pushing mechanism 45 pushes the push block 434 to rise by the height of one pole piece thickness. After all the pole pieces are sucked, the limiting mechanism 44 can be directly loosened, so that the positioning track 431 can be taken down, and the positioning track 431 provided with the pole pieces is positioned in the positioning cavity. The traditional method that the pole pieces are directly superposed into the positioning track fixed on the carrier plate is replaced, so that the time is saved, the workload is reduced, and the efficiency is improved. Specifically, a through groove is formed in one side of the positioning rail 431, and when the positioning rail 431 with the pole piece is placed in, a universal clamping block is clamped in the through groove, so that when the positioning rail 41 is placed in the positioning cavity, the pole piece is prevented from falling off.
Further, referring to fig. 5, the limiting mechanism 44 includes a first limiting block 440 and a second limiting block 441 respectively limiting and clamping the front and rear ends of the plurality of sets of positioning seats 430, a connecting plate 442 connecting the ends of the first limiting block 440 and the second limiting block 441, an adjusting locking member 443 disposed on the connecting plate 442, an adjustable positioning assembly 444 disposed on the carrier plate 40, a positioning plate 445 disposed on the top of the second limiting block 441, and floating pressing assemblies 446 disposed on the first limiting block 440 and corresponding to the number of the positioning rails 431, wherein the floating pressing assemblies 446 press the corresponding positioning rails 431. The adjustable positioning assembly 446 and the adjustable retaining member 443 are oppositely disposed; the adjusting locking piece 443 tightly presses the positioning seat 430 at the right end, so that the positioning seat 430 at the left end abuts against the adjustable positioning component 446.
The adjustable positioning assembly 444 comprises a fixed seat 4440 disposed on the top of the carrier plate 40, a positioning rod 4441 slidably passing through the fixed seat 4440 and abutting against the positioning seat 430, and a locking screw 4442 disposed on the top of the fixed seat 4440 and locking the positioning rod 4441.
Further, the adjusting locker 443 is a locking bolt.
Referring to fig. 7, the floating pressing assembly 446 includes a mounting block 4460 disposed on the first limiting block 440, a slider 4461 slidably penetrating the mounting block 4460, a pressing block 4462 disposed at an end of the slider 4461, and a pressing spring 4463 disposed between the pressing block 4462 and the mounting block 4460; the pressing spring 4463 pushes the pressing piece 4462 to press the positioning rail 431 on an inner side of the positioning seat 430. Therefore, when the positioning rail 431 is replaced, the positioning rail 431 can be loosened only by breaking the pressing blocks 4462, and the replacement efficiency is improved.
Referring to fig. 3 and 4, the step pushing mechanism 45 includes a motor 450 disposed at the bottom of the bottom plate 42, a screw pair 451 disposed on a rotating shaft of the motor 450, a connecting plate 452 fixedly connected to a nut of the screw pair 451, a push rod 453 disposed at the top of the connecting plate 452, a guide rod 454 disposed at the bottom of the connecting plate 452, and a guide sleeve 455 slidably sleeved on the guide rod 454; the guide sleeve 455 is fixedly connected with the bottom plate 42, and the push rod 453 is fixedly connected with the push block 434; the motor 450 is a stepping motor or a servo motor. The motor 450 drives the screw rod of the screw rod pair 451 to rotate, so that the nut drives the connecting plate 452 to move upwards, the push rod 453 is pushed upwards, and when the connecting plate 452 moves upwards, the guide rod 454 guides and limits the connecting plate 452.
Further, referring to fig. 6, the peeling mechanism 432 includes a base plate 4320, a first blocking plate 4321, a partition plate 4322, a second blocking plate 4323 and a cover plate 4324, which are sequentially stacked on the positioning rail 431, and a screw sequentially passes through the cover plate 4324 to be lockingly connected with the positioning rail 431; the base plate 4320, the first blocking piece 4321, the partition plate 4322, the second blocking piece 4323 and the cover plate 4324 are all provided with a clearance cavity; the first barrier sheet 4321 and the second barrier sheet 4323 are both provided with a peeling sheet 4325 extending towards the inner side of the cavity avoiding body. When the upper pole piece is sucked, the remaining pole pieces are peeled off by the peeling sheet 4325. Specifically, the pole pieces are deformed by the peeling sheet 4325, so that a certain gap is generated between the sucked adjacent pole pieces, one side of the pole pieces can overcome the pressure of the atmospheric pressure, and the pole pieces fall off, and meanwhile, the pole pieces on the ground can be separated by the peeling sheet.
Further, referring to fig. 8 and 9, the lamination positioning module 5 includes a positioning plate 50, an adjusting positioning mechanism 51, an elastic pressing assembly 52 and a replaceable positioning mold 53. The elastic pressing assembly 52 and the positioning plate 50 are disposed in parallel on the supporting member 3. The adjusting and positioning mechanism 51 is arranged at one end of a gap formed by the elastic pressing component 52 and the positioning plate 50; the elastic pressing component 52 presses the positioning mold 53 on one side of the positioning plate 430, and one end of the positioning mold 53 abuts against the adjusting and positioning mechanism 51. When sucking pole piece and diaphragm to positioning die 53 at negative pressure suction means 7 in, be with positioning die 53 location between locating plate 50 and elasticity compress tightly subassembly 52, after pole piece and diaphragm location in positioning die 53, take out positioning die 53 through the manual work and flow into next process, and fix a position positioning die 53 in another hole between locating plate 50 and elasticity compress tightly subassembly 52, and compress tightly one side of positioning die 53 at locating plate 50 through elasticity compress tightly subassembly 52, consequently after changing different positioning die 53, positioning die 53 laminates with locating plate 50 all the time, consequently, guarantee that each positioning die 53's location benchmark is unanimous all the time, thereby improve the superimposed precision of pole piece.
The positioning die 53 comprises a die plate 530 and a positioning inner die 531; the die plate 531 is provided with a plurality of positioning cavities, and the plurality of positioning inner dies 531 are in clearance fit with the positioning cavities. A sliding chute is arranged on one side of the positioning cavity, a pressing block 532 and a compression spring 533 for extruding the pressing block 532 to press the positioning inner die in the positioning cavity are arranged in the sliding chute; and a limiting plate 534 for limiting the pressing block 532 is arranged at the top of the die plate 531. When the positioning inner die 531 needs to be replaced, only the pressing block 532 needs to be stirred to slide, the positioning inner die 531 is loosened, the positioning inner die 531 is taken out conveniently, new setting is carried out in the positioning cavity to be compressed, and the positioning cavity can be continuously replaced to correspond to different products.
Further, referring to fig. 9, the elastic pressing assembly 52 includes a fixing plate 520, a pressing plate 521, a second guide rod 522 and a pressing spring 523. The fixing plate 520 is disposed on the supporting member 3, the two ends of the fixing plate 520 are respectively provided with a guiding boss 520a extending towards the positioning plate 50, and the guiding bosses 520a limit the pressing plate 521. The pressing plate 521 is slidably arranged between the two guide bosses 520 a; the plurality of pressing springs 523 are disposed between the fixed plate 520 and the pressing plate 521; one end of each of the two second guide rods 522 is fixedly connected to the pressing plate 521, and the other end thereof slidably penetrates through the fixing plate 520. The guide rod 522 guides the pressing plate 521, and pushes the pressing plate 521 to press the positioning mold 53 against the positioning plate 50 by the pressure of the pressing spring 523.
The adjusting and positioning mechanism 51 comprises a fixed seat 510 and an adjusting screw 511 which are arranged on the support 3; the fixing seat 510 is provided with a thread through hole, and the adjusting screw 511 is in thread fit with the thread. The adjustment of the position of the die plate 530 is thus achieved by adjusting the length of the die plate 530 by means of the adjusting screw 511.
Further, referring to fig. 10-14, the correcting mechanism 6 includes a positioning body 60, a correcting mold 61, a transverse positioning push block 62 and a longitudinal positioning push block 63; the positioning body 60 is arranged on the support member 3, the positioning body 60 is provided with a positioning cavity 600, the correcting mold 61 is arranged on one side of the positioning cavity, and a clearance is arranged between the correcting mold 61 and the other side of the positioning cavity. An open positioning cavity is arranged on one side, close to the vacancy avoiding position, of the correcting die 61, and the transverse positioning push block 62 and the longitudinal positioning push block 63 are arranged in the vacancy avoiding position; the first pushing mechanism 64 and the second pushing mechanism 65 respectively push the transverse positioning push block 62, the longitudinal positioning push block 63 and the positioning cavity to form a complete pole piece positioning cavity for a battery pole piece; the bottom of the positioning cavity 600 is provided with an air suction hole 601 communicated with an air pipe of a negative pressure device. When the negative pressure suction mechanism 7 sucks a pole piece, the pole piece is stretched into the positioning cavity 600, the first pushing mechanism 64 and the second pushing mechanism 65 respectively push the transverse positioning pushing block 62 and the longitudinal positioning pushing block 63 to move towards the position of the positioning cavity 600, so that the pole piece is positioned in the pole piece positioning cavity formed by the transverse positioning pushing block 62 and the longitudinal positioning pushing block 63, the position correction of the pole piece is realized, the overlapping and dislocation of the pole piece are avoided, and the product quality is improved; when the pole piece is inserted into the positioning cavity 600, the negative pressure device makes the mouth of the suction hole 601 generate a smaller suction force, and when the negative pressure suction mechanism 7 sucks two pole pieces at the same time, the suction force generated by the suction hole 601 separates the bottom pole piece from the pole piece sucked up by the negative pressure suction mechanism 7. Wherein the negative pressure device is a vacuum pump.
Further, referring to fig. 12, the positioning cavity 600 includes a pole piece body cavity 600a and a tab cavity 600 b; the air suction hole 601 is formed in the bottom of the pole piece body cavity 600a, and the bottom of the lug cavity 600b is further provided with a light sensor 602. The photo sensor 602 detects whether the tab of the pole piece exists, and if the tab of the pole piece is detected not to locate the tab cavity 600b, the photo sensor 602 transmits the detection information to the alarm device.
Referring to fig. 13, the first pushing mechanism 64 includes a first cylinder 640, a guide rail 641, and a first slider 642; the bottom end of the supporting member 3 close to the space avoidance position is further provided with a space avoidance step, the guide rail 641 is arranged on the space avoidance step, the first sliding block 642 is arranged on the guide rail 641, the first cylinder 640 is arranged at one side of the positioning body 60, and the first cylinder 640 pushes the first sliding block 642 to slide along the guide rail 641; the transverse positioning push block 62 is arranged on the first slide block.
Referring to fig. 12, the second pushing mechanism 65 includes a second guide rail 650 disposed at the bottom of the supporting member 3, a second slider 651 disposed on the second guide rail 650, a connecting member 652 disposed on the second slider 651, and a second cylinder 653 disposed at the bottom of the supporting member 3 for pushing the second slider 651 to slide along the second guide rail 650; the connecting piece 652 penetrates through the clearance groove on the supporting piece 3 and extends into the positioning cavity 600, and the longitudinal positioning push block 63 is arranged on the connecting piece 652.
Further, referring to fig. 15, the negative pressure suction mechanism 7 includes a mounting plate 70 disposed on the translation mechanism 2, a third pushing mechanism 71 disposed on the mounting plate 70, a connecting rod 72 disposed at a telescopic end of the third pushing mechanism 71, a first compression spring 73 sleeved on the connecting rod 72, a connecting plate 74 slidably connected to a lower end of the connecting rod 72, a guide assembly 75 disposed at a bottom end of the connecting plate 74, and a plurality of sets of negative pressure suction head assemblies 76 disposed at a lower end of the guide assembly 75; the upper end of the connecting rod 72 is provided with a limiting plate 720 of the first compression spring, and the lower end of the connecting rod 72 is provided with a second limiting block 721 for limiting the bottom of the connecting plate 74. After the materials are stacked, the third pushing mechanism 71 pushes the negative pressure suction head assembly 76 to move downwards to be in contact with the materials, so that the materials are sucked; when the height that the material superposes is higher, consequently the degree that first compression spring 720 compressed is great, and when the height that the material superposes was lower and lower, the degree that first compression spring 4 compressed was littleer and smaller, nevertheless keeps certain at pushing mechanism 2's stroke, and negative pressure suction head subassembly 720 can contact with the material all the time, consequently replaces the height that traditional needs come control lift with servo drive for its simple structure, and the cost is reduced. In addition, when the third pushing mechanism 71 pushes the negative pressure suction head assembly 75 to contact with the material, the first compression spring 73 can also play a role in buffering the negative pressure suction head assembly 75.
Further, the third pushing mechanism 71 includes a support plate 710 provided on one side of the mounting plate 70 and a third cylinder 711 provided on the support plate 710; a piston rod of the third cylinder 711 is fixedly connected with the connecting rod 72; the third cylinder 711 pushes the connecting rod 72 to move up and down. Specifically, the third cylinder 711 pushes the connecting rod 72 to move downward, and the guide member 75 is pushed to move downward by the elastic force of the first compression spring 720, so that the first compression spring 720 can be compressed.
The guide assembly 75 includes a guide seat 750 disposed on one side of the mounting plate 70, two linear bearings 751 disposed in the guide seat 750 in parallel, two guide rods 752 respectively penetrating through the two linear bearings 751, and a second connecting plate 753 at a lower end of the two guide rods 752; the negative pressure suction head assembly 75 is arranged at the bottom of the second connecting plate 753; the third pushing mechanism 71 pushes the two connecting rods 72 to move up and down, and the linear bearings 751 guide the connecting rods.
The negative pressure suction head assembly 76 comprises two second linear bearings 760 arranged in the second connecting plate 753, two second guide rods 761 respectively penetrating through the two second linear bearings 760, a suction head 762 connecting the lower ends of the two second guide rods 761, and a second compression spring 763 arranged between the suction head 762 and the second connecting plate 753; the bottom of the suction head 762 is provided with an adsorption hole, and the adsorption hole is communicated with a negative pressure device (not shown in the attached drawing) through a pipeline. The negative pressure device is a vacuum pump. When the suction head 762 is in contact with the pole piece or the diaphragm, the negative pressure device enables the position of the adsorption hole to generate certain suction force, and therefore materials are sucked.
Further, referring to fig. 16-17, the translation mechanism 2 is a servo drive mechanism; the translation mechanism 2 comprises a gantry type frame 20, two linear guide rails 21 arranged in parallel on the front side of the frame 20, a servo motor 22 and two bearing seats 23 arranged on the back side of the frame 20, a ball screw pair 24 connected with bearings in the two bearing seats 23, and a nut seat 25 fixedly connected with a nut of the ball screw pair 24; the nut seat 25 penetrates through the clearance hole on the frame 20 and is fixedly connected with the mounting plate 70. The screw of the ball screw pair 24 is driven to rotate by the servo motor 22, thereby pushing the nut holder 25 and the mounting plate 70 to operate together.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception, and fall within the scope of the present invention.

Claims (8)

1. The automatic lamination machine for the lithium battery pole pieces comprises a machine table and a translation mechanism arranged on the machine table; the device is characterized by further comprising a support piece arranged on the machine table, four groups of feeding mechanisms, a lamination positioning module arranged on the support piece, correction mechanisms arranged on two sides of the lamination positioning module, and four groups of negative pressure suction mechanisms arranged on the translation mechanism; the four groups of feeding mechanisms are symmetrically positioned on two sides of the supporting piece; the translation mechanism pushes the negative pressure suction mechanism to move, so that the negative pressure suction mechanism respectively sucks positive pole pieces, positive diaphragms, negative pole pieces and negative diaphragms which are arranged in the four groups of feeding mechanisms to the correction mechanism for correction, and then the positive pole pieces, the negative pole pieces and the negative diaphragms are positioned in the lamination positioning module for lamination;
the lamination positioning module comprises a positioning plate, an adjusting and positioning mechanism, an elastic pressing assembly and a replaceable positioning die; the elastic pressing assembly and the positioning plate are arranged on the supporting piece in parallel; the adjustable positioning mechanism is arranged at one end of a gap formed by the elastic pressing assembly and the positioning plate; the elastic pressing assembly presses the positioning mould to one side of the positioning plate, and one end of the positioning mould is abutted to the adjusting and positioning mechanism; the positioning die comprises a die plate and a positioning inner die; a plurality of positioning cavities are formed in the die plate, and a plurality of positioning inner dies are in clearance fit with the positioning cavities; a sliding chute is arranged on one side of the positioning cavity, a pressing block and a compression spring for extruding the pressing block to press the positioning inner die in the positioning cavity are arranged in the sliding chute; a limiting plate for limiting the pressing block is arranged at the top of the die plate;
the negative pressure suction mechanism comprises a mounting plate arranged on the translation mechanism, a third pushing mechanism arranged on the mounting plate, a connecting rod arranged at the telescopic end of the third pushing mechanism, a first compression spring sleeved on the connecting rod, a connecting plate in sliding connection with the lower end of the connecting rod, a guide assembly arranged at the bottom end of the connecting plate, and a negative pressure suction head assembly arranged at the lower end of the guide assembly; the upper end of connecting rod is equipped with first compression spring's limiting plate, the lower extreme of connecting rod is located spacingly the second stopper of connecting plate bottom.
2. The automatic lamination machine of the lithium battery pole piece as claimed in claim 1, wherein the feeding mechanism comprises a carrier plate arranged on the machine platform, and two mounting side plates and a bottom plate are arranged on the two mounting side plates of the carrier plate; the two installation side plates are oppositely installed at the bottom of the carrier plate and extend into the cavity of the machine table, and the bottom plate is connected to the bottom ends of the two installation side plates; the top of the support plate is provided with a plurality of groups of pole piece positioning guide mechanisms and limiting mechanisms; the limiting mechanism fixes the pole piece positioning guide mechanism on the top of the support plate; the pole piece positioning and guiding mechanism comprises a positioning seat, a positioning track and a stripping mechanism; the positioning seat is arranged at the top of the carrier plate, a positioning cavity is arranged at the top of the positioning seat, the lower end of the positioning track is in clearance fit with the positioning cavity, a positioning guide cavity is arranged in the positioning track, the positioning guide cavity penetrates from the upper end to the bottom end of the positioning track, and a push block in sliding connection with the positioning guide cavity is arranged at the lower end of the positioning guide cavity; the stripping mechanism is arranged at the top of the positioning track; the bottom plate is provided with a stepping pushing mechanism, and the telescopic end of the stepping pushing mechanism is connected with the push block.
3. The automatic lamination machine of lithium battery pole pieces as claimed in claim 2, wherein the limiting mechanism comprises a first limiting block and a second limiting block for respectively limiting and clamping a plurality of sets of the positioning seats at the front and rear ends, a connecting plate for connecting the ends of the first limiting block and the second limiting block, an adjusting locking member arranged on the connecting plate, an adjustable positioning assembly arranged on the carrier plate, a positioning plate arranged at the top of the second limiting block, and floating pressing assemblies arranged on the first limiting block and corresponding to the number of the positioning rails, wherein the floating pressing assemblies press the corresponding positioning rails; the adjustable positioning assembly and the adjustable locking member are oppositely arranged; the adjusting locking piece tightly presses the positioning seat at the right end, so that the positioning seat at the left end is abutted to the adjustable positioning assembly;
the adjustable positioning assembly comprises a fixed seat arranged at the top of the carrier plate, a positioning rod which passes through the fixed seat in a sliding manner and is abutted against the positioning seat, and a locking screw which is arranged at the top of the fixed seat and locks the positioning rod;
the stepping pushing mechanism comprises a motor arranged at the bottom of the bottom plate, a screw rod pair arranged on a rotating shaft of the motor, a connecting plate fixedly connected with a nut of the screw rod pair, a push rod arranged at the top of the connecting plate, a guide rod arranged at the bottom of the connecting plate and a guide sleeve slidably sleeved on the guide rod; the guide sleeve is fixedly connected with the bottom plate, and the push rod is fixedly connected with the push block; the motor is a stepping motor or a servo motor.
4. The automatic lamination machine of the lithium battery pole piece as claimed in claim 3, wherein the stripping mechanism comprises a backing plate, a first blocking plate, a partition plate, a second blocking plate and a cover plate which are sequentially superposed on the positioning rail, and a screw sequentially penetrates through the cover plate to be in locking connection with the positioning rail; the base plate, the first blocking piece, the partition plate, the second blocking piece and the cover plate are all provided with a clearance cavity; the first blocking piece and the second blocking piece are both provided with stripping pieces extending towards the inner side of the cavity avoiding body.
5. The automatic lamination machine of lithium battery pole pieces as claimed in claim 1, wherein the elastic compression assembly comprises a fixing plate, a pressure plate, a second guide rod and a compression spring; the fixed plate is arranged on the supporting piece, two ends of the fixed plate are respectively provided with a guide boss extending towards the direction of the positioning plate, and the pressing plate is arranged between the two guide bosses in a sliding manner; the plurality of extrusion springs are arranged between the fixed plate and the pressing plate; one end of each of the two second guide rods is fixedly connected with the pressing plate, and the other end of each of the two second guide rods penetrates through the fixing plate in a sliding manner;
the adjusting and positioning mechanism comprises a fixed seat and an adjusting screw rod which are arranged on the supporting piece; the fixing seat is provided with a thread through hole, and the adjusting screw rod is in thread fit with the thread.
6. The automatic lamination machine of lithium battery pole pieces as claimed in claim 1, wherein the correction mechanism comprises a positioning body, a correction die, a transverse positioning push block and a longitudinal positioning push block; the correcting die is arranged on one side of the positioning cavity, and a clearance is arranged between the correcting die and the other side of the positioning cavity; one side of the correcting die, which is close to the vacancy avoiding position, is provided with an open positioning cavity, and the transverse positioning pushing block and the longitudinal positioning pushing block are arranged in the vacancy avoiding position; the first pushing mechanism and the second pushing mechanism respectively push the transverse positioning push block, the longitudinal positioning push block and the positioning cavity to form a complete pole piece positioning cavity of the battery pole piece; and the bottom of the positioning cavity is provided with an air suction hole communicated with an air pipe of the negative pressure device.
7. The automatic lamination machine for lithium battery pole pieces as claimed in claim 6, wherein the positioning cavity comprises a pole piece body cavity and a tab cavity; the air suction hole is formed in the bottom of the pole piece body cavity, and the bottom of the lug cavity is also provided with a light sensor;
the first pushing mechanism comprises a first air cylinder, a guide rail and a first sliding block; the bottom end of the support piece close to the vacancy avoiding position is also provided with a vacancy avoiding step, the guide rail is arranged on the vacancy avoiding step, the first sliding block is arranged on the guide rail, the first air cylinder is arranged on one side of the positioning body, and the first air cylinder pushes the first sliding block to slide along the guide rail; the transverse positioning push block is arranged on the first sliding block;
the second pushing mechanism comprises a second guide rail arranged at the bottom of the supporting piece, a second sliding block arranged on the second guide rail, a connecting piece arranged on the second sliding block, and a second air cylinder arranged at the bottom of the supporting piece and used for pushing the second sliding block to slide along the second guide rail; the connecting piece passes clearance groove on the support piece and stretches into in the positioning cavity, the longitudinal positioning ejector pad is located the connection.
8. The automatic lamination machine of lithium battery pole pieces as claimed in claim 1, wherein the third pushing mechanism comprises a support plate disposed at one side of the mounting plate and a third cylinder disposed on the support plate; a piston rod of the third cylinder is fixedly connected with the connecting rod;
the guide assembly comprises a guide seat arranged on one side of the mounting plate, two linear bearings arranged in the guide seat in parallel, two guide rods respectively penetrating through the two linear bearings, and a second connecting plate at the lower ends of the two guide rods; the negative pressure suction head assembly is arranged at the bottom of the second connecting plate;
the negative pressure suction head assembly comprises two second linear bearings arranged in the second connecting plate, two second guide rods respectively penetrating through the two second linear bearings, a suction head connected with the lower ends of the two second guide rods, and a second compression spring arranged between the suction head and the second connecting plate; the bottom of the suction head is arranged on an adsorption hole which is communicated with a negative pressure device pipeline.
CN201810989175.8A 2018-08-28 2018-08-28 Automatic lamination stacking machine for lithium battery pole pieces Active CN109301351B (en)

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KR102544744B1 (en) * 2019-03-12 2023-06-16 주식회사 엘지에너지솔루션 Lamination apparatus and method for secondary battery
CN110957536A (en) * 2019-12-11 2020-04-03 周俊英 Positioning and material moving device of automatic lamination machine for lithium battery pole pieces
CN117066864A (en) * 2023-10-13 2023-11-17 杭州沈氏节能科技股份有限公司 Lamination equipment, use method thereof and micro-channel heat exchanger

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CN201017946Y (en) * 2007-02-16 2008-02-06 黄俊贤 Battery core automatic lamination machine
CN201804948U (en) * 2010-07-31 2011-04-20 凯迈(江苏)机电有限公司 Stacking mechanism for pole pieces for lithium-ion power battery
CN102931438B (en) * 2011-08-11 2016-03-02 深圳市吉阳自动化科技有限公司 Pole piece correction method and laminating machine
CN202888336U (en) * 2012-08-31 2013-04-17 惠州园方电池设备有限公司 Automatic lamination stacking machine for lithium battery
CN205790234U (en) * 2016-05-31 2016-12-07 浙江杭可科技股份有限公司 64 passage polymer Li-ion battery battery formation clamp machines
CN106450477B (en) * 2016-11-22 2018-08-17 无锡百立德自动化有限公司 High-precision lithium battery battery core lamination machine
CN107069058A (en) * 2016-12-30 2017-08-18 东莞市超鸿自动化设备有限公司 Lamination device
CN208849026U (en) * 2018-08-28 2019-05-10 惠州市汇艺机械设备有限公司 Lithium battery pole slice automatic laminating machine

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