CN110323497B - Multi-station lamination device and lamination method thereof - Google Patents
Multi-station lamination device and lamination method thereof Download PDFInfo
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- CN110323497B CN110323497B CN201910625079.XA CN201910625079A CN110323497B CN 110323497 B CN110323497 B CN 110323497B CN 201910625079 A CN201910625079 A CN 201910625079A CN 110323497 B CN110323497 B CN 110323497B
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- 238000003475 lamination Methods 0.000 title claims abstract description 223
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003825 pressing Methods 0.000 claims abstract description 352
- 230000007246 mechanism Effects 0.000 claims abstract description 297
- 238000013519 translation Methods 0.000 claims abstract description 115
- 230000000712 assembly Effects 0.000 claims abstract description 46
- 238000000429 assembly Methods 0.000 claims abstract description 46
- 230000005540 biological transmission Effects 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000012937 correction Methods 0.000 claims abstract description 8
- 238000005056 compaction Methods 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 73
- 238000007906 compression Methods 0.000 claims description 73
- 238000012546 transfer Methods 0.000 claims description 13
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 claims description 11
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0583—Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with "Z"-shaped electrodes or separators
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing 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 a multi-station lamination device, which comprises: two pairs of compaction lifting mechanisms (1), two pairs of compaction translation mechanisms (2), a lamination table lifting mechanism (3), an auxiliary lifting mechanism (4), a lamination table (5), two pairs of material pressing assemblies (6) and a diaphragm correction mechanism (7). The multi-station lamination device provided by the invention is based on the technical characteristics that a plurality of pressing components are controlled by adopting a plurality of pairs of pressing lifting mechanisms and pressing translation mechanisms, the technical characteristics that a plurality of electrode plates are alternately pressed by adopting a plurality of pressing components, and the technical characteristics that the pressing components advance and retreat and lift in a mode of adopting mechanical gear transmission and planar disk-shaped groove cam control are adopted, and the combined action effects are that the efficiency of the lamination device is improved; meanwhile, a lamination method capable of simultaneously placing a plurality of pole pieces on a lamination table for high-speed lamination is also provided.
Description
Technical Field
The invention relates to the field of processing and manufacturing of lithium battery laminations, in particular to a multi-station lamination device and a lamination method thereof.
Background
At present, a lithium battery lamination technology is a lithium battery manufacturing technology in which positive and negative electrode sheets are separated by using a diaphragm and are sequentially laminated to form an electric core. The basic principle and the working process are as follows: the coiled diaphragm is pulled out by the diaphragm assembly, the diaphragm is folded into a Z shape by the reciprocating motion of the lamination table or the diaphragm assembly, meanwhile, the positive electrode plate and the negative electrode plate are alternately placed between the folded diaphragms by a mechanical arm or other transfer devices, and the positive electrode plate and the negative electrode plate are separated by the diaphragm. Repeating the above process for several times to finally form the lithium battery cell with certain thickness.
The existing lamination device adopts a single-station mode, only one pole piece is placed on a lamination table at a time through a mechanical arm or other transfer devices to carry out lamination, a plurality of pole pieces cannot be placed on the lamination table, and a plurality of pole pieces can be simultaneously laminated, so that lamination efficiency is low. The invention aims to solve the problems and designs a novel multi-station lamination device.
The existing lamination device adopts a single-station mode, only one pole piece is placed on a lamination table at a time through a mechanical arm to carry out lamination, and a plurality of pole pieces cannot be placed on the lamination table to carry out lamination operation at the same time, so that lower lamination efficiency can be caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a lamination device and a lamination method for simultaneously laminating five or more pole pieces.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a lamination method of a multi-station lamination device, which is applicable to a multi-station lamination device, the multi-station lamination device comprising: the device comprises two pairs of compaction lifting mechanisms 1, two pairs of compaction translation mechanisms 2, a lamination table lifting mechanism 3, an auxiliary lifting mechanism 4, a lamination table 5, two pairs of material pressing assemblies 6 and a diaphragm correction mechanism 7;
the two pairs of pressing lifting mechanisms 1 comprise: a pair of first compression lifting mechanisms 11 and a pair of second compression lifting mechanisms 12; the first pressing lifting mechanism 11 includes: a first compression lifting mechanism 11a and a second compression lifting mechanism 11b; the second pressing and lifting mechanism 12 includes: a first compression lifting mechanism II 12a and a second compression lifting mechanism II 12b; the pressing lifting mechanism comprises a first servo motor 13, a first plane disc-shaped groove cam 14 and a first transmission part 15, so that the first servo motor 13 drives the first plane disc-shaped groove cam 14 to act to control the two pairs of pressing components 6 to move up and down;
the two pairs of pressing translation mechanisms 2 comprise: a pair of first compressing and translating mechanisms 21 and a pair of second compressing and translating mechanisms 22; the pair of pressing translation mechanisms 21 includes: a first compression translation mechanism 21a and a second compression translation mechanism 21b; the second pressing translation mechanism 22 includes: the first pressing translation mechanism II 22a and the second pressing translation mechanism II 22b, wherein any pair of pressing translation mechanisms comprises a second servo motor 23, a second planar disk-shaped groove cam 24, a second transmission part 25 and a pressing component connecting part 26, so as to control any pair of pressing components 6 to move towards each other to be close to the lamination table or move away from the lamination table in a reverse way;
the first compression lifting mechanism 11a, the second compression lifting mechanism 11b, the first compression translation mechanism 21a and the second compression translation mechanism 21b are driven by the same first servo motor 13; the same gear drives the first plane disk-shaped groove cams 14 and the second plane disk-shaped groove cams 24 on two sides in the gear, and the first transmission part 15, the second transmission part 25 and the material pressing component connecting part 26 are connected with the first material pressing component 61a and the second material pressing component 62b to synchronously lift and move in opposite directions or move in opposite directions; the first pressing lifting mechanism II 12a, the second pressing lifting mechanism II 12b, the first pressing translation mechanism II 22a and the second pressing translation mechanism II 22b are driven by the same second servo motor 23, the same gear drives the first plane disc-shaped groove cams 14 and the second plane disc-shaped groove cams 24 on two sides in the gear, and the first transmission part 15, the second transmission part 25 and the pressing component connecting part 26 are connected with the first pressing component II 62a and the second pressing component II 62b to synchronously lift and move in opposite directions or move in opposite directions;
the lamination table lifting mechanism 3 comprises a third servo motor 31, a first screw rod transmission part 32 and a supporting plate 33, and controls the lamination table 5 to move up and down so as to ensure that the battery cores are pressed at the same height by the pressing mechanism every time;
the auxiliary lifting mechanism 4 comprises a guide rod cylinder 41, a third transmission part 42 and an intermediate support plate 43, wherein the intermediate support plate 43 ascends to fill a hollow part of the lamination table 5 so as to ensure that the whole plane of the lamination table 5 is supported when the lamination is carried out; until the lamination is completed, the middle supporting plate 43 descends to enable the battery core to be taken out from the lamination table 5, and the lamination table lifting mechanism 3 acts to drive the auxiliary lifting mechanism 4 to lift together;
the lamination table 5 comprises a T-shaped supporting block 51 and two side supporting blocks 52; the T-shaped supporting block 51 comprises a vacuum adsorption structure;
the two pairs of pressing assemblies 6 comprise: a pair of first press assemblies 61 and a pair of second press assemblies 62; the pair of pressing assemblies 61 includes: a first press component 61a and a second press component 61b; the second pair of pressing assemblies 62 includes: the first pressing component II 62a and the second pressing component II 62b, the first pressing component 61 comprises a first pressing cutter connecting rod 63a and a first pressing cutter 64a, and the second pressing component 62 comprises a second pressing cutter connecting rod 63b and a second pressing cutter 64b, so that the pole piece is pressed by the pressing cutters of the pressing component during lamination;
the diaphragm correction mechanism 7 includes: a fourth servo motor 71, a second screw transmission part 72, a movable suction plate 73, wherein the movable suction plate 73 comprises a vacuum adsorption structure;
one working cycle of the lamination method comprises the following steps:
s1: the two pairs of pressing assemblies 6 are positioned at the initial opening position, when the two pairs of pressing assemblies start to work, the movable suction plates 73 of the diaphragm correcting mechanism 7 absorb the first layer of diaphragms in vacuum and correct the positions, and meanwhile, the lamination table lifting mechanism 3 acts, and the lamination table 5 moves to the lamination position;
s2: after the diaphragm is corrected, a Z-shaped diaphragm, a T-shaped supporting block of the lamination table 5 and a first layer of diaphragm are adsorbed onto the lamination table 5 in vacuum, and meanwhile, the lifting mechanism 4 is assisted to act, and the middle supporting plate 43 is lifted to the lamination position of the lamination table 5;
s3: the pole piece transferring device transfers five negative pole pieces on the first layer of diaphragm at one time, the lamination table lifting mechanism 3 acts, the lamination table 5 descends by a set height, and the height of the lamination is ensured to be unchanged;
s4: the pair of pressing translation mechanisms I21 act, and the pressing cutters of the pair of pressing components I61 move to be right above the lamination table 5;
s5: the first pressing knife 64a of the first pressing assembly 61 descends to respectively press one side of the five pole pieces; the five pressing cutters of the first pressing component I61 a and the five pressing cutters of the second pressing component I61 b symmetrically press one side of each pole piece to perform Z-shaped diaphragm;
s6: the pole piece transferring device transfers five positive pole pieces again to be placed on the second layer of diaphragm, the lamination table lifting mechanism 3 acts, the lamination table 5 descends by a set height, and the height of the lamination is ensured to be unchanged;
s7: the second pressing translation mechanism 22 of the other pair acts, the second pressing knife 64b of the second pressing assembly 62 of the other pair moves to the position right above the lamination table 5, the second pressing lifting mechanism 12 of the other pair acts, the second pressing knife 64b of the second pressing assembly 62 of the other pair descends to respectively press the other sides of the five pole pieces, and the five pressing knives of the first pressing assembly 62a and the five pressing knives of the second pressing assembly 62b symmetrically press the other sides of each pole piece;
s8: the pair of pressing lifting mechanisms I11 act to drive the pair of pressing translation mechanisms I21 to rise by one section of height, and simultaneously the first pressing cutters 64a of the pair of pressing components I61 follow the rising by one section of height;
s9: the second planar disk-shaped groove cam 24 of the first pressing translation mechanism 21 acts, the first pressing knife 64a of the first pressing assembly 61 acts to the far end of the lamination table 5 to perform Z-shaped diaphragm;
s10: simultaneously, a pair of pressing lifting mechanisms I11 act, a pair of pressing components I61 return to the initial position, the pole piece transferring device transfers five negative pole pieces on the third layer of diaphragm at one time, the lamination table lifting mechanism 3 acts, the lamination table 5 descends by a set height, and the height of the lamination is ensured to be unchanged;
s11: the first pressing translation mechanism 21 acts, the pressing cutters of the first pressing assembly 61 move to the position right above the lamination table 5, the first pressing lifting mechanism 11 acts, and the first pressing cutters 64a of the first pressing assembly 61 descend to respectively press one sides of the five pole pieces;
s12: the second pressing lifting mechanism 12 is actuated to drive the second pressing translation mechanism 22 of the other pair to rise by one section of height, and the second pressing knife 64b of the second pressing assembly 62 of the other pair is driven to rise by one section of height;
s13: the second planar disk-shaped groove cam 24 of the second pressing translation mechanism 22 of the other pair acts, and the second pressing knife 64b of the second pressing assembly 62 of the other pair acts to the far end of the lamination table 5 to perform Z-shaped diaphragm;
s14: simultaneously, the other pair of pressing lifting mechanisms II 12 act, the other pair of pressing assemblies II 62 return to the initial position, and the two pairs of pressing assemblies 6 alternately and circularly act until the whole cell lamination is completed;
s15: the auxiliary lifting mechanism 4 acts, the middle supporting plate 43 descends to the lowest initial position, and the battery cell transferring device takes out five battery cells at a time.
Compared with the prior art, the beneficial effects are that:
the invention relates to a multi-station lamination device which consists of two pairs of pressing lifting mechanisms, two pairs of pressing translation mechanisms, a lamination table lifting mechanism, an auxiliary lifting mechanism and two pairs of pressing assemblies, wherein each pressing assembly comprises twenty pressing cutters, one lamination table and a diaphragm correcting mechanism, the diaphragms are folded into Z shapes through the reciprocating motion of the lamination device or the diaphragm assemblies, then five positive/negative electrode plates are alternately placed between the folded diaphragms through one-time transfer of a pole piece transferring device, the pressing translation mechanisms act to enable the pressing assemblies to do reciprocating translation motion, the pressing lifting mechanisms act to enable the pressing translation mechanisms to do lifting motion, therefore, when one pair of pressing assemblies comprises ten pressing cutters to press one side of each of the five pole pieces, the other pair of pressing assemblies comprises ten pressing cutters to withdraw from the other side of each of the five pole pieces, the two pairs of pressing assemblies alternately act, the five pole pieces are always ensured to have one side to be pressed in the lamination process, the diaphragm Z-shaped folding process is prevented from being influenced by pole piece channeling, and the lamination core is prevented until the lamination is completed through one-time, and the lamination efficiency is improved, and the lamination device is greatly improved. Placing a plurality of pole pieces on a lamination table and simultaneously carrying out multi-station lamination operation; compressing the plurality of pole pieces by adopting a plurality of pairs of compressing assemblies; each pressing assembly can comprise a plurality of pressing cutters, a pair of pressing cutters are respectively arranged on the same side of each pole piece during lamination, pole piece movement during Z-shaped diaphragm is avoided, and therefore precision and efficiency of the lamination of the plurality of pole pieces are guaranteed. The multi-station lamination device provided by the invention is based on the technical characteristics that a plurality of pressing components are controlled by adopting a plurality of pairs of pressing lifting mechanisms and pressing translation mechanisms, the technical characteristics that a plurality of electrode plates are alternately pressed by adopting a plurality of pressing components, and the technical characteristics that the pressing components advance and retreat and lift in a mode of adopting mechanical gear transmission and planar disk-shaped groove cam control are adopted, and the combined action effects are that the efficiency of the lamination device is improved; meanwhile, a lamination method capable of simultaneously placing a plurality of pole pieces on a lamination table for high-speed lamination is also provided.
In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Drawings
FIG. 1 is a schematic perspective view of a multi-station lamination device of the present invention;
fig. 2 is a schematic perspective view of the pressing lifting mechanism 1 in fig. 1;
fig. 3 is a schematic perspective view of the compressing and translating mechanism 2 in fig. 1;
fig. 4 is a schematic perspective view of the lamination table lifting mechanism 3 in fig. 1;
fig. 5 is a schematic perspective view of the auxiliary lifting mechanism 4 in fig. 1;
fig. 6 is a schematic perspective view of the lamination table 5 in fig. 1;
fig. 7 is a schematic perspective view of a first pressing assembly 61;
fig. 8 is a schematic perspective view of a second pressing assembly 62;
fig. 9 is a schematic perspective view of the diaphragm correcting mechanism 7;
fig. 10 is a schematic diagram of the principle of operation of the multi-station lamination device.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As shown in fig. 1-9, the multi-station lamination device provided by the invention comprises two pairs of compression lifting mechanisms 1, two pairs of compression translation mechanisms 2, a lamination table lifting mechanism 3, an auxiliary lifting mechanism 4, a lamination table 5, two pairs of material pressing assemblies 6 and a diaphragm correction mechanism 7.
The two pairs of pressing lifting mechanisms 1 are divided into a first pair of pressing lifting mechanisms 11 and a second pair of pressing lifting mechanisms 12, the first pair of pressing lifting mechanisms 11 are divided into a first pressing lifting mechanism 11a and a second pressing lifting mechanism 11b, the second pair of pressing lifting mechanisms 12 are divided into a first pressing lifting mechanism 12a and a second pressing lifting mechanism 12b, each pair of pressing lifting mechanisms comprises a first servo motor 13, a first plane disc-shaped groove cam 14 and a first transmission part 15, and the first plane disc-shaped groove cam 14 is driven to act through the first servo motor 13 to control the two pairs of pressing components 6 to move up and down.
The two pairs of pressing translation mechanisms 2 are divided into a first pair of pressing translation mechanisms 21 and a second pair of pressing translation mechanisms 22, and for convenience in explanation of the working principle, the first pair of pressing translation mechanisms 21 is divided into a first pressing translation mechanism 21a and a second pressing translation mechanism 21b, the second pair of pressing translation mechanisms 22 is divided into a first pressing translation mechanism 22a and a second pressing translation mechanism 22b, and each pair of pressing translation mechanisms comprises a second servo motor 23, a second planar disk-shaped groove cam 24, a second transmission part 25 and a pressing assembly connecting part 26, and each pair of pressing assemblies 6 is controlled to move towards each other to be close to the lamination table or move away from the lamination table in the opposite directions.
The first compression lifting mechanism I11 a, the second compression lifting mechanism I11 b, the first compression translation mechanism I21 a and the second compression translation mechanism I21 b are driven by the same first servo motor 13, the same gear drives first plane disk-shaped groove cams 14 and 24 on two sides in the gear, and the transmission parts 15 and 25 and the material pressing component connecting part 26 are connected with the material pressing components 61a and 61b to synchronously lift and move in opposite directions or move in opposite directions, and the lifting mechanisms 11a and 11b drive the translation mechanisms 21a and 21b to lift; the first compression lifting mechanism II 12a, the second compression lifting mechanism II 12b, the first compression translation mechanism II 22a and the second compression translation mechanism II 22b are driven by the same servo motors 13 and 23, the same gears drive plane disc-shaped groove cams 14 and 24 on two sides in the gears, the transmission parts 15 and 25 and the material pressing component connecting part 26 are connected with the first material pressing component II 62a and the second material pressing component II 62b to synchronously lift and move in opposite directions or move in opposite directions, and the lifting mechanisms 12a and 12b drive the translation mechanisms 22a and 22b to lift.
The lamination table lifting mechanism 3 comprises a third servo motor 31, a first screw transmission part 32 and a supporting plate 33, and controls the lamination table 5 to move up and down, so that the lamination of the battery cells at the same height by the pressing mechanism each time is ensured.
The auxiliary lifting mechanism 4 comprises a guide rod cylinder 41, a third transmission part 42 and an intermediate support plate 43, the intermediate support plate 43 ascends to fill the empty part of the lamination table 5, the whole plane of the lamination table 5 is supported during lamination, after lamination is completed, the intermediate support plate 43 descends to facilitate the taking out of the battery cell from the lamination table 5, and the lamination table lifting mechanism 3 acts to drive the auxiliary lifting mechanism 4 to integrally lift together.
Lamination station 5 includes a T-shaped support block 51 containing vacuum suction and two side support blocks 52.
The two pairs of pressing assemblies 6 are divided into a first pair of pressing assemblies 61 and a second pair of pressing assemblies 62, in order to facilitate the specific explanation of the working principle, the first pair of pressing assemblies 61 are divided into a first pressing assembly 61a and a second pressing assembly 61b, the second pair of pressing assemblies 62 are divided into a first pressing assembly 62a and a second pressing assembly 62b, the first pressing assembly 61 comprises a first pressing cutter connecting rod 63a and a first pressing cutter 64a, the second pressing assembly 62 comprises a second pressing cutter connecting rod 63b and a second pressing cutter 64b, and the pole pieces are pressed by the pressing cutters of the pressing assemblies during lamination.
The diaphragm correcting mechanism 7 comprises a fourth servo motor 71, a second screw transmission part 72 and a movable suction plate 73, and vacuum adsorption is contained.
In other more specific embodiments, the number of pole pieces stacked at a time is not limited to 5, and may be a plurality of pole pieces. The number of the pressing cutters included in each pressing assembly is not limited to 5, and a plurality of pressing cutters can be adopted. The pressing lifting mechanism is not limited to two pairs, can be multiple pairs, and can be realized by not only a planar disk-shaped groove cam structure, but also other lifting modes such as an air cylinder, a module and the like. The compressing and translating mechanism is not limited to two pairs, can be multiple pairs, and can be realized by not only a planar disk-shaped groove cam mode, but also other translating modes such as an air cylinder, a module and the like. The press assembly is not limited to two pairs, but may be multiple pairs.
As shown in fig. 10, the lamination method of the multi-station lamination device provided by the invention specifically comprises the following steps: the two pairs of pressing components 6 are in an initial position of opening, the movable suction plates 71 of the diaphragm correcting mechanism 7 absorb the first layer of diaphragms in vacuum and correct the positions when the two pairs of pressing components start to work, meanwhile, the lamination table lifting mechanism 3 acts, the lamination table 5 moves to the lamination position, after the diaphragms are corrected, Z-shaped diaphragms are carried out, the T-shaped supporting block of the lamination table 5 comprises a vacuum absorbing device, the first layer of diaphragms are absorbed on the lamination table 5 in vacuum, the auxiliary lifting mechanism 4 acts, the middle supporting plate 43 rises to the lamination position of the lamination table 5, the whole lamination table is ensured to have support, the pole piece transferring device transfers five negative pole pieces on the first layer of diaphragms at one time, the lamination table lifting mechanism 3 acts, the lamination table 5 descends by a set height, the lamination table is ensured not to change in height, the pair of pressing translation mechanisms 21 act, the pressing knife of the first pair of pressing components 61 moves to the position right above the lamination table 5, the pair of pressing lifting mechanisms 11 act, the first pressing knife 64a of the first pressing assembly 61 descends to respectively press one side of the five pole pieces, the five pressing knives of the first pressing assembly 61a and the five pressing knives of the second pressing assembly 61b symmetrically press one side of each pole piece, Z-shaped diaphragms are carried out, the pole piece transferring device transfers five positive pole pieces on the second layer of diaphragms again, the lamination table lifting mechanism 3 acts, the lamination table 5 descends to a set height, the lamination table 5 is ensured to be unchanged in height, the other pair of pressing translation mechanisms 22 acts, the second pressing knife 64b of the second pressing assembly 62 moves to be right above the lamination table 5, the other pair of pressing lifting mechanisms 12 acts, the second pressing knife 64b of the other pair of pressing assembly 62 descends to respectively press the five pressing knives of the first pressing assembly 62a and the five pressing knives of the second pressing assembly 62b on the other side of the five pole pieces symmetrically press the other side of each pole piece, the pair of pressing lifting mechanisms I11 act to drive the pair of pressing translation mechanisms I21 to rise by a small section of height, while the first presser 64a of the pair of presser assemblies one 61 follows the rise of a small height, the second planar disk-shaped grooved cams 24 of the pair of presser translation mechanisms one 21 act, the presser 64 of the pair of presser assemblies one 61 acts to the distal end of the lamination table 5, performs a Z-shaped diaphragm, simultaneously, the pair of pressing lifting mechanisms I11 act, the pair of pressing components I61 return to the initial position, the pole piece transferring device transfers five negative pole pieces on the third layer of diaphragm at one time, the lamination table lifting mechanism 3 acts, the lamination table 5 descends by a set height to ensure that the height of the lamination is unchanged, the pair of pressing translation mechanisms 21 act, the pressing cutters of the pair of pressing components I61 move to the position right above the lamination table 5, the pair of pressing lifting mechanisms I11 act, the first pressing cutters 64a of the pair of pressing components I61 descend to respectively press one sides of the five pole pieces, the other pair of pressing lifting mechanisms II 12 act to drive the other pair of pressing translation mechanisms II 22 to ascend by a small height, while the second presser 64b of the other pair of second presser members 62 follows the rise of a small height, the second planar disk-shaped grooved cam 24 of the other pair of second presser members 22 acts, the second presser 64b of the other pair of second presser members 62 acts to the distal end of the lamination table 5, performs a Z-shaped diaphragm, meanwhile, the other pair of pressing lifting mechanisms II 12 act, the other pair of pressing assemblies II 62 return to the initial position, the two pairs of pressing assemblies 6 alternately circulate until the whole battery cell lamination is completed, the auxiliary lifting mechanisms 4 act, the middle supporting plate 43 descends to the lowest initial position, and the battery cell transfer device takes out five battery cells at a time, and the work cycle of the multi-station lamination device is one.
The action principle of each component mechanism is as follows:
principle of action of two pairs of compression lifting mechanisms 1: the first pair of pressing lifting mechanisms 11 and the second pair of pressing lifting mechanisms 12 act alternately, when the first two pairs of pressing lifting mechanisms 1 are at the highest initial position, the first planar disk-shaped groove cam 14 drives the first pressing lifting mechanism 11a and the second pressing lifting mechanism 11b to act simultaneously during lamination, drives the first pressing translation mechanism 21a and the second pressing translation mechanism 21b to descend to the lowest point, the other pair of first planar disk-shaped groove cam 14 drives the first pressing lifting mechanism second 12a and the second pressing lifting mechanism second 12b to act simultaneously, drives the first pressing translation mechanism second 22a and the second pressing translation mechanism second 22b to ascend a small height, and waits for the second pressing cutters 64n of the first pressing assembly second 62a and the second pressing assembly second 62b to withdraw completely simultaneously, the first compression lifting mechanism II 12a and the second compression lifting mechanism II 12b drive the first compression translation mechanism II 22a and the second compression translation mechanism II 22b to rise to the highest point, the first compression lifting mechanism II 12a and the second compression lifting mechanism II 12b drive the first compression translation mechanism II 22a and the second compression translation mechanism II 22b to descend to the lowest point, the first compression lifting mechanism I11 a and the second compression lifting mechanism I11 b drive the first compression translation mechanism I21 a and the second compression translation mechanism I21 b to ascend by a small height, when the first pressing knife 64a of the first material pressing component I61 a and the second material pressing component I61 b is completely withdrawn, the first compression lifting mechanism I11 a and the second compression lifting mechanism I11 b drive the first compression translation mechanism I21 a and the second compression translation mechanism I21 b to descend to the lowest point, the first working cycle of the two pairs of compression lifting mechanisms 1 is completed after the whole cell lamination, the two pairs of compressing lifting mechanisms 1 drive the two pairs of compressing translation mechanisms 2 to return to the initial position of the highest position.
Principle of action of two pairs of compression translation mechanisms 2: the first pressing translation mechanism 21 and the second pressing translation mechanism 22 act alternately, when the two pairs of pressing translation mechanisms 2 are positioned at the far end initial position of the lamination table, the second planar disc-shaped groove cams 24 of the first pressing translation mechanism 21a and the second pressing translation mechanism 21b drive the first pressing cutters 64a of the first pressing assembly 61a and the second pressing assembly 61b to act right above the lamination table 5 during lamination, the first pressing lifting mechanism 11a and the second pressing lifting mechanism 11b respectively drive the first pressing translation mechanism 21a and the second pressing translation mechanism 21b to descend to the lowest point, the first pressing cutters 64a of the first pressing assembly 61a and the second pressing assembly 61b press the pole pieces to perform Z-shaped diaphragms, the first pressing translation mechanism II 22a and the second pressing translation mechanism II 22b drive the second pressing knife 64b of the first pressing translation mechanism II 62a and the second pressing translation mechanism II 62b to act right above the lamination table 5, the first pressing translation mechanism II 12a and the second pressing translation mechanism II 12b drive the first pressing translation mechanism II 22a and the second pressing translation mechanism II 22b to descend to the lowest point, the second pressing knife 64b of the first pressing translation mechanism II 62a and the second pressing translation mechanism II 62b press the pole piece, the first pressing translation mechanism I11 a and the second pressing translation mechanism I11 b drive the first pressing translation mechanism I21 a and the second pressing translation mechanism I21 b to ascend by a small height, the second flat disc-shaped groove cams 24 of the first pressing translation mechanism I21 a and the second pressing translation mechanism I21 b drive the first pressing knives 64a of the first pressing mechanism I61 a and the second pressing assembly I61 b to act to the far end of the lamination table to perform Z-shaped diaphragms, meanwhile, the first compression lifting mechanism 11a and the second compression lifting mechanism 11b drive the first compression translation mechanism 21a and the second compression translation mechanism 21b to rise to the highest point to enable the first compression translation mechanism and the second compression translation mechanism to return to the initial position, the above is one working cycle of the two pairs of compression translation mechanisms 2, and after the whole battery cell lamination is completed, the two pairs of compression translation mechanisms 2 return to the remote initial position of the lamination table.
Principle of action of lamination table elevating mechanism 3: when lamination is started, the lamination table lifting mechanism 3 acts to enable the lamination table 5 to be in a lamination initial position, each layer of pole pieces is stacked, the third servo motor 31 of the lamination table lifting mechanism 3 is started to enable the lamination table 5 to descend by a set height until the whole battery cell lamination is completed, the battery cell is rotated out, the lamination table lifting mechanism 3 returns to the initial position, and the above is one working cycle of the lamination table lifting mechanism 3.
Principle of action of the auxiliary lifting mechanism 4: when the middle support plate 43 of the auxiliary lifting mechanism 4 is at the lowest initial position before lamination and lamination is started, the guide rod cylinder 41 of the auxiliary lifting mechanism 4 is started, the middle support plate 43 is lifted to the same height as the lamination table 5 through the third transmission part 42, the support of the empty part of the lamination table 5 is guaranteed, the guide rod cylinder 41 of the auxiliary lifting mechanism 4 is started to drive the third transmission part 42 to act after the whole battery cell lamination is completed, the middle support plate 43 is lowered to the lowest initial position, one working cycle of the auxiliary lifting mechanism 4 is adopted, and the action of the lamination table lifting mechanism 3 drives the auxiliary lifting mechanism 4 to integrally lift.
Principle of action of diaphragm correction mechanism 7: before starting lamination, the movable suction plate 73 of the diaphragm correcting mechanism 7 vacuum-adsorbs the first layer of diaphragm, the offset of the diaphragm pulling-out position is detected through optical fiber sensors on two sides of the diaphragm, an offset signal is fed back to the fourth servo motor 71 of the diaphragm correcting mechanism 7, the fourth servo motor 71 is started, the second screw transmission part 72 is driven to act to drive the movable suction plate 73 to move, so that lamination can be started until the diaphragm reaches a set position, the whole battery core lamination is completed, and the battery core is pulled out, so that the diaphragm correcting mechanism 7 has one working cycle.
In summary, the multi-station lamination device provided by the invention is composed of two pairs of pressing lifting mechanisms, two pairs of pressing translation mechanisms, one lamination table lifting mechanism, one auxiliary lifting mechanism and two pairs of pressing assemblies, wherein each pressing assembly comprises twenty pressing knives, one lamination table and one diaphragm correction mechanism, the diaphragms are folded into a Z shape through the reciprocating motion of the lamination device or the diaphragm assemblies, then five positive/negative electrode plates are alternately placed between the folded diaphragms through the pole piece transferring device at one time, the pressing translation mechanisms act to enable the pressing assemblies to do reciprocating translation motion, the pressing lifting mechanisms act to enable the pressing translation mechanisms to do lifting motion, therefore, the pressing knives of the two pairs of pressing assemblies alternately move to alternately press the pole pieces, when one pair of pressing assemblies comprises ten pressing knives to press each side of the five pole pieces, the other pair of pressing assemblies comprises ten pressing knives to withdraw from the other side of the five pole pieces, the two pairs of pressing assemblies alternately move, the five sides are always ensured to be pressed in the lamination process, so that the pole pieces are prevented from being shifted when the diaphragms are folded in a Z shape, the lamination core is influenced, the lamination is greatly improved, and the space efficiency is also improved through the lamination device, and the lamination efficiency is greatly improved. Placing a plurality of pole pieces on a lamination table and simultaneously carrying out multi-station lamination operation; compressing the plurality of pole pieces by adopting a plurality of pairs of compressing assemblies; each pressing assembly can comprise a plurality of pressing cutters, a pair of pressing cutters are respectively arranged on the same side of each pole piece during lamination, pole piece movement during Z-shaped diaphragm is avoided, and therefore precision and efficiency of the lamination of the plurality of pole pieces are guaranteed. The multi-station lamination device provided by the invention is based on the technical characteristics that a plurality of pressing components are controlled by adopting a plurality of pairs of pressing lifting mechanisms and pressing translation mechanisms, the technical characteristics that a plurality of electrode plates are alternately pressed by adopting a plurality of pressing components, and the technical characteristics that the pressing components advance and retreat and lift in a mode of adopting mechanical gear transmission and planar disk-shaped groove cam control are adopted, and the combined action effects are that the efficiency of the lamination device is improved; meanwhile, a lamination method capable of simultaneously placing a plurality of pole pieces on a lamination table for high-speed lamination is also provided.
The foregoing is merely illustrative of the present invention to facilitate understanding, but is not intended to limit the scope of the invention to any way of extension or re-creation according to the invention. The protection scope of the invention is subject to the claims.
Claims (1)
1. A lamination method of a multi-station lamination device, which is suitable for a multi-station lamination device, the multi-station lamination device comprising: the device comprises two pairs of compaction lifting mechanisms (1), two pairs of compaction translation mechanisms (2), a lamination table lifting mechanism (3), an auxiliary lifting mechanism (4), a lamination table (5), two pairs of material pressing assemblies (6) and a diaphragm correction mechanism (7);
the two pairs of pressing lifting mechanisms (1) comprise: a pair of first compression lifting mechanisms (11) and a pair of second compression lifting mechanisms (12); the first pressing lifting mechanism (11) comprises: a first compression lifting mechanism (11 a) and a second compression lifting mechanism (11 b); the second compression lifting mechanism (12) comprises: a first compression lifting mechanism II (12 a) and a second compression lifting mechanism II (12 b); any pair of pressing lifting mechanisms comprises a first servo motor (13), a first plane disc-shaped groove cam (14) and a first transmission part (15), so that the first servo motor (13) drives the first plane disc-shaped groove cam (14) to act to control the two pairs of pressing components (6) to move up and down;
the two pairs of compaction translation mechanisms (2) comprise: a pair of first compression translation mechanisms (21) and a pair of second compression translation mechanisms (22); the pair of pressing translation mechanisms one (21) comprises: a first compression translation mechanism (21 a) and a second compression translation mechanism (21 b); the second compression translation mechanism (22) comprises: the first pressing translation mechanism II (22 a) and the second pressing translation mechanism II (22 b), wherein any pair of pressing translation mechanisms comprises a second servo motor (23), a second planar disk-shaped groove cam (24), a second transmission part (25) and a pressing component connecting part (26) so as to control any pair of pressing components (6) to move towards each other to be close to a lamination table or move away from the lamination table in opposite directions;
the first compression lifting mechanism I (11 a), the second compression lifting mechanism I (11 b) and the first compression translation mechanism I (21 a) and the second compression translation mechanism I (21 b) are driven by the same first servo motor (13); the first plane disk-shaped groove cams (14) and the second plane disk-shaped groove cams (24) on two sides in the same gear are driven by the same gear, and the first transmission part (15), the second transmission part (25) and the material pressing component connecting part (26) are connected with a first material pressing component (61 a) and a second material pressing component (62 b) to synchronously lift and move in opposite directions or move in opposite directions; the first pressing lifting mechanism II (12 a), the second pressing lifting mechanism II (12 b) and the first pressing translation mechanism II (22 a) are driven by the same second servo motor (23), the same gear drives the first plane disk-shaped groove cams (14) and the second plane disk-shaped groove cams (24) on two sides in the gear, and the first transmission part (15), the second transmission part (25) and the pressing component connecting part (26) are connected with the first pressing component II (62 a) and the second pressing component II (62 b) to synchronously lift and move in opposite directions or move in opposite directions;
the lamination table lifting mechanism (3) comprises a third servo motor (31), a first screw rod transmission part (32) and a supporting plate (33), and controls the lamination table (5) to move up and down so as to ensure that the battery cores are pressed at the same height by the pressing mechanism every time;
the auxiliary lifting mechanism (4) comprises a guide rod cylinder (41), a third transmission part (42) and an intermediate support plate (43), and the intermediate support plate (43) ascends to fill a hollow part of the lamination table (5) so as to ensure that the whole plane of the lamination table (5) is supported during lamination; until lamination is completed, the middle supporting plate (43) descends to enable the battery core to be taken out of the lamination table (5), and the lamination table lifting mechanism (3) acts to drive the auxiliary lifting mechanism (4) to integrally lift;
the lamination table (5) comprises a T-shaped supporting block (51) and two side supporting blocks (52); the T-shaped supporting block (51) comprises a vacuum adsorption structure;
the two pairs of pressing assemblies (6) comprise: a pair of first pressing components (61) and a pair of second pressing components (62); the pair of pressing assemblies one (61) comprises: a first press component (61 a) and a second press component (61 b); the pair of pressing assemblies II (62) comprises: the first material pressing component II (62 a) and the second material pressing component II (62 b), the material pressing component I (61) comprises a first material pressing connecting rod (63 a) and a first material pressing cutter (64 a), and the material pressing component II (62) comprises a second material pressing connecting rod (63 b) and a second material pressing cutter (64 b) so that the pole piece is pressed by the material pressing component pressing cutters during lamination;
the diaphragm correction mechanism (7) comprises: the device comprises a fourth servo motor (71), a second screw rod transmission part (72) and a movable suction plate (73), wherein the movable suction plate (73) comprises a vacuum adsorption structure;
one working cycle of the lamination method comprises the following steps:
s1: the two pairs of pressing assemblies (6) are positioned at an initial opening position, when the two pairs of pressing assemblies start to work, the movable suction plates (73) of the diaphragm correcting mechanism (7) absorb the first layer of diaphragms in vacuum and correct the positions, meanwhile, the lamination table lifting mechanism (3) acts, and the lamination table (5) moves to the lamination position;
s2: after the diaphragm is corrected, a Z-shaped diaphragm is carried out, a T-shaped supporting block of the lamination table (5) is used for vacuum adsorption of a first layer of diaphragm to the lamination table (5), meanwhile, the lifting mechanism (4) is assisted to act, and the middle supporting plate (43) is lifted to the lamination position of the lamination table (5);
s3: the pole piece transferring device transfers five negative pole pieces on the first layer of diaphragm at one time, the lamination table lifting mechanism (3) acts, the lamination table (5) descends by a set height, and the height of the lamination is ensured to be unchanged;
s4: the pressing translation mechanism I (21) acts, and the pressing knife of the pressing assembly I (61) moves to be right above the lamination table (5);
s5: the first pressing knife (64 a) of the first pressing assembly (61) descends to respectively press one sides of the five pole pieces; five pressing cutters of the first pressing component I (61 a) and five pressing cutters of the second pressing component I (61 b) symmetrically press one side of each pole piece to perform Z-shaped diaphragm;
s6: the pole piece transferring device transfers five positive pole pieces on the second layer of diaphragm again, the lamination table lifting mechanism (3) acts, the lamination table (5) descends by a set height, and the height of the lamination is ensured to be unchanged;
s7: the second pressing and translating mechanism II (22) of the other pair moves, the second pressing knife (64 b) of the second pressing assembly II (62) of the other pair moves to be right above the lamination table (5), the second pressing and lifting mechanism II (12) of the other pair moves, the second pressing knife (64 b) of the second pressing assembly II (62) of the other pair descends to respectively press the other sides of the five pole pieces, and the five pressing knives of the first pressing assembly II (62 a) and the five pressing knives of the second pressing assembly II (62 b) symmetrically press the other sides of each pole piece;
s8: the first compression lifting mechanism (11) acts to drive the first compression translation mechanism (21) to rise by one section of height, and the first compression knife (64 a) of the first compression assembly (61) follows the rising by one section of height;
s9: a second planar disk-shaped groove cam (24) of the first compressing and translating mechanism (21) acts, a first pressing knife (64 a) of the first compressing and material-compressing component (61) acts to the far end of the lamination table (5) to perform Z-shaped diaphragm;
s10: simultaneously, a pair of pressing lifting mechanisms I (11) act, a pair of pressing components I (61) return to the initial position, the pole piece transferring device transfers five negative pole pieces on the third layer of diaphragm at a time, the lamination table lifting mechanism 3 acts, the lamination table 5 descends by a set height, and the height of the lamination is ensured to be unchanged;
s11: the first pressing and translating mechanism (21) acts, the pressing cutters of the first pressing and translating assembly (61) move to be right above the lamination table (5), the first pressing and lifting mechanism (11) acts, and the first pressing cutters (64 a) of the first pressing and translating assembly (61) descend to respectively press one sides of the five pole pieces;
s12: the second compression lifting mechanism (12) is driven to ascend by one section of height, and the second compression knife (64 b) of the second compression translational mechanism (22) of the other pair of compression components (62) is driven to ascend by one section of height;
s13: the second plane disc-shaped groove cam (24) of the second pair of pressing translation mechanisms (22) acts, the second pressing knife (64 b) of the second pair of pressing components (62) acts to the far end of the lamination table (5) to perform Z-shaped diaphragm;
s14: simultaneously, the other pair of pressing lifting mechanisms II (12) acts, the other pair of pressing assemblies II (62) returns to the initial position, and the two pairs of pressing assemblies (6) alternately and circularly act until the whole cell lamination is completed;
s15: the auxiliary lifting mechanism (4) acts, the middle supporting plate (43) descends to the lowest initial position, and the battery cell transferring device takes out five battery cells at a time.
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| CN107946660A (en) * | 2017-12-06 | 2018-04-20 | 东莞市佳的自动化设备科技有限公司 | A kind of double drive dual control cam lamination device |
| CN109786852A (en) * | 2019-03-07 | 2019-05-21 | 深圳市光大激光科技股份有限公司 | A kind of high speed laminating machine and laminating method |
| CN212676339U (en) * | 2020-07-17 | 2021-03-09 | 深圳市光大激光科技股份有限公司 | Cam type multi-press-pin lamination device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107946660A (en) * | 2017-12-06 | 2018-04-20 | 东莞市佳的自动化设备科技有限公司 | A kind of double drive dual control cam lamination device |
| CN109786852A (en) * | 2019-03-07 | 2019-05-21 | 深圳市光大激光科技股份有限公司 | A kind of high speed laminating machine and laminating method |
| CN212676339U (en) * | 2020-07-17 | 2021-03-09 | 深圳市光大激光科技股份有限公司 | Cam type multi-press-pin lamination device |
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