CN212676338U

CN212676338U - Multi-pressing-pin lamination device

Info

Publication number: CN212676338U
Application number: CN202021423196.2U
Authority: CN
Inventors: 何林; 郑新华; 刘巨粮
Original assignee: SHENZHEN LIGHTSTAR LASER TECHNOLOGY CO LTD
Current assignee: SHENZHEN LIGHTSTAR LASER TECHNOLOGY CO LTD
Priority date: 2020-07-17
Filing date: 2020-07-17
Publication date: 2021-03-09
Anticipated expiration: 2030-07-17

Abstract

The utility model discloses a multi-press-pin lamination device, which comprises two pairs of pressing lifting mechanisms, two pairs of pressing translation mechanisms, a lamination platform lifting mechanism, an auxiliary lifting mechanism, a platform panel, two pairs of pressing components and a diaphragm correction mechanism; the middle of the upper part of the multi-press-pin laminating device is provided with a table board, pressing assemblies are uniformly distributed on two sides of the table board in pairs, and the diaphragm correcting mechanism is arranged at one end of the table board; a pressing lifting mechanism and a pressing translation mechanism are arranged at the lower part of the multi-pressing-pin laminating device and correspond to the pressing component; a lamination table lifting mechanism is arranged at the position corresponding to the table panel; an auxiliary lifting mechanism is arranged at the position corresponding to the diaphragm correcting mechanism; the compressing and translating mechanism acts to enable the pressing components to do reciprocating translation motion, and the compressing and lifting mechanism acts to enable the compressing and translating mechanism to do lifting motion, so that the two pairs of pressing components alternately move and alternately compress the pole pieces. The precision and the efficiency of a plurality of pole piece laminations are ensured, and the overall space utilization rate of the device is also improved.

Description

Multi-pressing-pin lamination device

Technical Field

The utility model relates to a lithium cell processing production technology, the more specifically many tucking lamination device that says so.

Background

The lithium battery lamination technology is a lithium battery manufacturing technology which uses a diaphragm to isolate a positive electrode plate and a negative electrode plate and sequentially laminates the positive electrode plate and the negative electrode plate to form a battery core. The basic working 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 and negative electrode plates are alternately placed between the folded diaphragms by a manipulator or other transfer devices, and the positive and negative electrode plates are separated by the diaphragm. And repeating the processes for multiple times to finally form the lithium battery cell with a certain thickness.

The existing lamination device adopts a single-station mode, only one pole piece is placed on the lamination platform at a time through a mechanical arm or other transfer devices for lamination, and a plurality of pole pieces cannot be placed on the lamination platform and operated simultaneously, so that the lamination efficiency is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a many tucking lamination device of a plurality of electrode slice while lamination.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a multi-press-pin lamination device comprises two pairs of pressing lifting mechanisms, two pairs of pressing translation mechanisms, a lamination table lifting mechanism, an auxiliary lifting mechanism, a table board, two pairs of pressing assemblies and a diaphragm correction mechanism;

the middle of the upper part of the multi-press-pin laminating device is provided with a table board, material pressing assemblies are uniformly distributed on two sides of the table board in pairs, and the diaphragm correcting mechanism is arranged at one end of the table board;

a pressing lifting mechanism and a pressing translation mechanism are arranged at the lower part of the multi-pressing-needle laminating device and correspond to the pressing assembly; a lamination table lifting mechanism is arranged at the position corresponding to the table panel; an auxiliary lifting mechanism is arranged at the position corresponding to the diaphragm correcting mechanism;

the compressing and translating mechanism acts to enable the pressing assemblies to do reciprocating translation motion, and the compressing and lifting mechanism acts to enable the compressing and translating mechanism to do up-and-down lifting motion, so that the two pairs of pressing assemblies alternately move and the pole pieces alternately compress.

The pressing and lifting mechanism comprises a lifting servo motor, an eccentric wheel and a lifting transmission part, wherein the lifting servo motor is connected with the eccentric wheel through the lifting transmission part, the lifting servo motor drives the eccentric wheel to act, and the eccentric wheel is in contact with the pressing assemblies to control the two pairs of pressing assemblies to move up and down.

According to a further technical scheme, the compressing and translating mechanism comprises a translating linear motor and a material pressing component connecting part, the translating linear motor is connected with the material pressing components through the material pressing component connecting part, and the translating linear motor controls each pair of material pressing components to move oppositely to be close to the lamination table or move oppositely to be far away from the lamination table.

The technical scheme is that the lamination table lifting mechanism comprises a lamination table servo motor, a lamination table screw rod transmission part and a supporting plate, the lamination table servo motor is connected with the supporting plate through the lamination table screw rod transmission part, and the lamination table servo motor controls a table panel to move up and down through the supporting plate so as to ensure that the electric cores compressed by the pressing mechanism at each time are located at the same height.

The technical scheme is that the auxiliary lifting mechanism comprises an auxiliary servo motor, an auxiliary screw rod transmission part, an inclined support plate and a middle support block; the auxiliary servo motor is connected with the inclined support plate through an auxiliary lead screw transmission part, and the inclined support plate contacts and drives the middle support block in the movement process; when the middle supporting block rises, the hollow part of the table top plate is filled, and the whole plane of the table top plate is supported when the table top plate is laminated; after lamination is completed, the middle supporting block descends, so that the battery core can be conveniently rotated out from the table top plate, and the lifting action of the whole auxiliary lifting mechanism is consistent with that of the lamination table lifting mechanism.

The further technical scheme is that the deck plate comprises a T-shaped supporting block and two side supporting blocks; the T-shaped supporting blocks are arranged and combined in parallel in the horizontal plane, and the supporting blocks at two sides are arranged at two sides of the T-shaped supporting blocks.

The further technical scheme is that the T-shaped supporting block is of a vacuum adsorption structure.

The further technical scheme is that the material pressing assembly comprises a pressing knife connecting rod and a pressing knife, the pressing knife connecting rod is connected with the end part of one side of the pressing knife, and the pole pieces are pressed through the pressing knife of the material pressing assembly during lamination.

The diaphragm correcting mechanism comprises a correcting servo motor, a correcting screw rod transmission part and a movable suction plate; the correction servo motor is connected with the movable suction plate through the correction screw rod transmission part, and the correction servo motor acts to drive the movable suction plate to move.

The further technical proposal is that the movable suction plate is of a vacuum adsorption structure.

Compared with the prior art, the utility model beneficial effect be: the utility model provides a pair of many tucks lamination device places a plurality of pole pieces and carries out many tucks lamination operation simultaneously at the lamination bench, adopt and compress tightly a plurality of pole pieces to pressing the material subassembly many, every presses the material subassembly to include a plurality of tuckers, every pole piece respectively has a pair of tucker to compress tightly with one side during the lamination, make the pole piece drunkenness when avoiding Z type diaphragm, thereby guarantee the precision and the efficiency of a plurality of pole piece laminations, a plurality of pole pieces carry out the lamination operation simultaneously, the holistic space utilization of device has also been improved. Adopt and to compress tightly elevating system and compress tightly translation mechanism to control a plurality of pressure material subassemblies more, adopt a plurality of pressure material subassemblies to compress tightly in turn a plurality of electrode slices, adopt linear electric motor control to press the mode of material subassembly advance and retreat, the purpose all lies in improving lamination device efficiency.

The foregoing is a summary of the present invention, and other objects, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments, which is provided for the purpose of illustration and understanding of the present invention.

Drawings

Fig. 1 is a schematic view of the overall structure of the multi-press pin lamination device of the present invention;

FIG. 2 is a top view of the structure shown in FIG. 1;

FIG. 3 is a schematic perspective view of the pressing and lifting mechanism;

FIG. 4 is a schematic perspective view of the compressing and translating mechanism;

FIG. 5 is a schematic perspective view of the mechanism of FIG. 4 from another perspective;

FIG. 6 is a schematic perspective view of a lamination table lifting mechanism;

FIG. 7 is a schematic perspective view of the auxiliary lifting mechanism;

FIG. 8 is a schematic perspective view of a table top;

FIG. 9 is a schematic perspective view of the swaging assembly;

FIG. 10 is a perspective view of the assembly of FIG. 9 in another state;

FIG. 11 is a perspective view of a diaphragm remediation assembly.

Reference numerals

1. A pressing lifting mechanism; 11a, a first pressing lifting mechanism; 11b, a second pressing lifting mechanism; 12a, a third pressing lifting mechanism; 12b, a fourth pressing lifting mechanism;

2. a pressing translation mechanism; 21a, a first pressing translation mechanism; 21b, a second pressing translation mechanism; 22a, a third pressing translation mechanism; 22b, a fourth compressing and translating mechanism;

3. a lamination table lifting mechanism; 4. an auxiliary lifting mechanism; 5. a table top plate; 7. a diaphragm correction mechanism;

61a, a first material pressing component; 61b, a second material pressing component; 62a, a third material pressing component; 62b, a material pressing component IV;

13. a lifting servo motor; 14. an eccentric wheel; 15. a lifting transmission part;

23. a translation linear motor; 24. a swaging assembly connection portion;

31. a lamination table servo motor; 32. a lamination table screw rod transmission part; 33. a support plate;

41. an auxiliary servo motor; 42. an auxiliary screw transmission part; 43. an inclined support plate; 44. a middle support block;

51. a T-shaped support block; 52. two side supporting blocks;

63. a pressing knife connecting rod; 64. pressing a cutter;

71. correcting the servo motor; 72. a correcting screw rod transmission part; 73. a movable suction plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and the following detailed description.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

Referring to fig. 1-11, the multi-pin lamination apparatus provided in this embodiment includes two pairs of pressing and lifting mechanisms 1, two pairs of pressing and translating mechanisms 2, a lamination table lifting mechanism 3, an auxiliary lifting mechanism 4, a table panel 5, two pairs of pressing assemblies, and a diaphragm correcting mechanism 7.

The two pairs of pressing lifting mechanisms 1 are divided into a first pressing lifting combination and a second pressing lifting combination, for the convenience of specifically explaining the working principle, the first pressing lifting combination is divided into a first pressing lifting mechanism 11a and a second pressing lifting mechanism 11b, the second pressing lifting combination is divided into a third pressing lifting mechanism 12a and a fourth pressing lifting mechanism 12b, each pair of pressing lifting mechanisms comprises a lifting servo motor 13, an eccentric wheel 14 and a lifting transmission part 15, and the lifting servo motor 13 drives the eccentric wheel 14 to act to control the two pairs of pressing assemblies to move up and down.

The two pairs of pressing translation mechanisms 2 are divided into a first pressing translation combination and a second pressing translation combination, for convenience of specifically explaining the working principle, the first pressing translation combination is divided into a first pressing translation mechanism 21a and a second pressing translation mechanism 21b, the second pressing translation combination is divided into a third pressing translation mechanism 22a and a fourth pressing translation mechanism 22b, each pair of pressing translation mechanisms comprises a translation linear motor 23 and a pressing assembly connecting part 24, and each pair of pressing assemblies are controlled to move towards each other to be close to the lamination table or move oppositely to be far away from the lamination table.

The lamination table lifting mechanism 3 comprises a lamination table servo motor 31, a lamination table screw rod transmission part 32 and a support plate 33, and controls the table panel 5 to move up and down, so that the cells compressed by the pressing mechanism at each time are ensured to be at the same height.

The auxiliary lifting mechanism 4 comprises an auxiliary servo motor 41, an auxiliary lead screw transmission part 42, an inclined support plate 43 and an intermediate support block 44, the intermediate support block 44 rises to fill the hollow part of the table panel 5, the whole plane of the table panel 5 is supported when lamination is ensured, after lamination is completed, the intermediate support block 44 descends, a battery core can conveniently rotate out of the table panel 5, the lamination table lifting mechanism 3 acts, and the auxiliary lifting mechanism 4 integrally lifts.

The table panel 5 includes a T-shaped support block 51 (including vacuum adsorption) and two side support blocks 52.

The two pairs of pressing assemblies are divided into a first pressing assembly and a second pressing assembly, for convenience of specifically explaining the working principle, the first pressing assembly is divided into a first pressing assembly 61a and a second pressing assembly 61b, the second pressing assembly is divided into a third pressing assembly 62a and a fourth pressing assembly 62b, each pressing assembly comprises a pressing knife connecting rod 63 and a pressing knife 64, and the pole pieces are pressed through the pressing knives 64 of the pressing assemblies during lamination.

The diaphragm correcting mechanism 7 comprises a correcting servo motor 71, a correcting screw rod transmission part 72 and a movable suction plate 73 (including vacuum adsorption).

Referring to fig. 1-2, the operation of each mechanism can be understood by referring to the accompanying drawings:

referring to fig. 3, the operation principle of the two pairs of pressing and lifting mechanisms 1 is as follows: the first pressing lifting combination and the second pressing lifting combination alternately act, two pairs of pressing lifting mechanisms 1 in front of the lamination are located at the highest initial position, a first pressing lifting mechanism 11a and a second pressing lifting mechanism 11b simultaneously act during lamination, a first pressing translation mechanism 21a and a second pressing translation mechanism 21b are respectively driven to descend to the lowest point, a third pressing lifting mechanism 12a and a fourth pressing lifting mechanism 12b simultaneously act, a third pressing translation mechanism 22a and a fourth pressing translation mechanism 22b are respectively driven to ascend by a small height, when the pressing knives 64 of a third pressing assembly 62a and a fourth pressing assembly 62b are completely withdrawn simultaneously, the third pressing lifting mechanism 12a and the fourth pressing lifting mechanism 12b respectively drive a third pressing translation mechanism 22a and a fourth pressing translation mechanism 22b to ascend to the highest point, and the third pressing lifting mechanism 12a and the fourth pressing lifting mechanism 12b respectively drive a third pressing translation mechanism 22a and a fourth pressing translation mechanism 22b to descend to the lowest point, 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 rise by a small height, and when the pressing knives 64 of the first pressing assembly 61a and the second pressing assembly 61b are completely withdrawn, 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 above is one working cycle of the two pairs of pressing lifting mechanisms 1, and after the whole cell lamination is completed, the two pairs of pressing lifting mechanisms 1 drive the two pairs of pressing translation mechanisms 2 to return to the highest initial position.

Referring to fig. 4-5, the operation principle of the two pairs of pressing translation mechanisms 2 is as follows: the first compressing and translating combination and the second compressing and translating combination alternately act, linear motor rotors of two pairs of compressing and translating mechanisms 2 in front of the lamination are located at the far-end initial position of a lamination table, pressing knives 64 of a first material pressing assembly 61a and a second material pressing assembly 61b are respectively driven by a first linear motor 23 of a first compressing and translating mechanism 21a and a second compressing and translating mechanism 21b to act right above a table panel 5 during lamination, a first compressing and lifting mechanism 11a and a second compressing and lifting mechanism 11b respectively drive a first compressing and translating mechanism 21a and a second compressing and translating mechanism 21b to descend to the lowest point, pressing knives 64 of the first material pressing assembly 61a and the second material pressing assembly 61b compress pole pieces to carry out Z-shaped diaphragms, a third compressing and translating mechanism 22a and a fourth compressing and translating mechanism 22b respectively drive a third compressing knife 64 of a third material pressing assembly 62a and a fourth compressing and translating mechanism 12b to act right above the table panel 5, and a third compressing and fourth compressing and lifting mechanism 12a respectively drive a third compressing and a fourth The moving mechanism IV 22b descends to the lowest point, the pole pieces are pressed by the pressing knives 64 of the pressing component III 62a and the pressing component IV 62b, the pressing lifting mechanism I11 a and the pressing lifting mechanism II 11b respectively drive the pressing translation mechanism I21 a and the pressing translation mechanism II 21b to ascend by a small height, the translation linear motors 23 of the pressing translation mechanism I21 a and the pressing translation mechanism II 21b respectively drive the pressing knives 64 of the pressing component I61 a and the pressing component II 61b to move to the far end of the lamination table to perform Z-shaped diaphragm, meanwhile, 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 ascend to the highest point to return to the initial position, the above is a working cycle of the two pairs of compressing and translating mechanisms 2, and the two pairs of compressing and translating mechanisms 2 all return to the far-end initial position of the lamination table after the whole cell lamination is completed.

Referring to fig. 6, the operation principle of the lamination table lifting mechanism 3 is as follows: when lamination starts, the lamination table lifting mechanism 3 acts to enable the table panel 5 to be located at the initial lamination position, when a pole piece is laminated, the lamination table servo motor 31 of the lamination table lifting mechanism 3 is started, the table panel 5 descends by a set height, until the whole battery core lamination is completed, the battery core is rotated out, the lamination table lifting mechanism 3 returns to the initial position, and the operation cycle of the lamination table lifting mechanism 3 is described above.

Referring to fig. 7-8, the operation principle of the auxiliary lifting mechanism 4 is as follows: when the middle supporting block 44 of the auxiliary lifting mechanism 4 is at the lowest initial position before lamination, the auxiliary servo motor 41 of the auxiliary lifting mechanism 4 is started when lamination is started, the inclined supporting plate 43 is lifted through the auxiliary lead screw transmission part 42 to drive the middle supporting block 44 to integrally move upwards to the same height with the table panel 5, so that the hollow part of the table panel 5 is supported, the auxiliary servo motor 41 of the auxiliary lifting mechanism 4 is started to drive the auxiliary lead screw transmission part 42 to act after the whole cell lamination is completed, the inclined supporting plate 43 is lowered to drive the middle supporting block 44 to return to the lowest initial position, and the operation cycle of the auxiliary lifting mechanism 4 is one working cycle of the auxiliary lifting mechanism 4, and the action of the lamination table lifting mechanism 3 can drive the auxiliary lifting mechanism 4 to integrally lift.

Referring to fig. 11, the diaphragm correcting mechanism 7 operates according to the following principle: before lamination starts, a first layer of diaphragm is adsorbed by a movable suction plate 73 of a diaphragm correction mechanism 7 in a vacuum mode, the offset of the pulling-out position of the diaphragm is detected through optical fiber sensors on two sides of the diaphragm, an offset signal is fed back to a correction servo motor 71 of the diaphragm correction mechanism 7, the correction servo motor 71 is started, a correction screw rod transmission part 72 is driven to move to drive the movable suction plate 73 to move, so that the first layer of diaphragm is corrected until the diaphragm reaches the set position, lamination can be started, a battery core is turned out after the whole battery core lamination is completed, and the operation cycle of the diaphragm correction mechanism 7 is described.

Referring to fig. 9-10, the operation principle of the multi-pin lamination device is as follows: two pairs of material pressing components are positioned at an opening initial position, when the operation is started, a movable suction plate 73 of a diaphragm correction mechanism 7 adsorbs a first layer of diaphragm in a vacuum mode and corrects the position, a diaphragm stacking table lifting mechanism 3 acts simultaneously, a table panel 5 moves to the stacking position, after the diaphragm is corrected, a Z-shaped diaphragm is carried out, a T-shaped supporting block 51 (comprising a vacuum adsorption device) of the table panel 5 adsorbs the first layer of diaphragm in a vacuum mode onto the table panel 5, an auxiliary lifting mechanism 4 acts simultaneously, a middle supporting plate 44 rises to the stacking position of the table panel 5 to ensure that the whole diaphragm stacking table is supported, a pole piece transfer device transfers five cathode pieces onto the first layer of diaphragm at one time, the diaphragm stacking table lifting mechanism 3 acts, the table panel 5 descends by a set height to ensure that the height of the laminated sheets is not changed, a first pressing translation combination acts, a pressing knife of a first material pressing combination moves right above the table panel 5, and the first pressing lifting, the pressing knife 64 of the first pressing assembly descends to respectively press one side of five pole pieces (five pressing knives of a first pressing assembly 61a and five pressing knives of a second pressing assembly 61b symmetrically press one side of each pole piece), a Z-shaped diaphragm is carried out, the pole piece transfer device is used for transferring five positive pole pieces again to be placed on a second diaphragm, the lamination table lifting mechanism 3 acts, the table panel 5 descends to a set height to ensure that the height of the lamination is unchanged, the second pressing translation combination acts, the pressing knife 64 of the second pressing assembly moves to be right above the table panel 5, the second pressing lifting combination acts, the pressing knife 64 of the second pressing assembly descends to respectively press the other sides of the five pole pieces (five pressing knives of a third pressing assembly 62a and five pressing knives of a fourth pressing assembly 62b symmetrically press the other side of each pole piece), the first pressing lifting combination acts to drive the first pressing translation combination to ascend to a small section of height, simultaneously, the pressing knife 64 of the first pressing combination rises a small section of height along with the rising, the translation linear motor 23 of the first pressing translation combination acts, the pressing knife 64 of the first pressing combination acts to the far end of the table panel 5 to carry out Z-shaped diaphragm, simultaneously, the first pressing lifting combination acts, the first pressing combination returns to the initial position, the pole piece transfer device transfers five cathode pieces at a time to be placed on the diaphragm of the third layer, the lamination table lifting mechanism 3 acts, the table panel 5 descends a set height to ensure the height of the lamination is not changed, the first pressing translation combination acts, the pressing knife of the first pressing combination moves to the position right above the table panel 5, the first pressing lifting combination acts, the pressing knife 64 of the first pressing combination descends to respectively press one side of the five pole pieces, the second pressing lifting combination acts to drive the other second pressing translation combination to rise a small section of height, and simultaneously, the pressing knife 64 of the other second pressing combination rises a small section of height along with the rising, and the translation linear motor 23 of the second pressing translation combination acts, the pressing knife 64 of the second pressing combination acts to the far end of the table panel 5 to perform the Z-shaped diaphragm, meanwhile, the second pressing lifting combination acts, the second pressing combination returns to the initial position, the two pairs of pressing assemblies alternately and circularly act until the whole cell lamination is completed, the auxiliary lifting mechanism 4 acts, the middle support plate 44 descends to the lowest initial position, the cell transfer device takes out five cells at a time, and the above is one working cycle of the multi-pressing-pin lamination device.

The technical scope of the present patent is not limited to the contents in the above description. The number of the pole pieces stacked at a time is not limited to 5, and the pole pieces can be a plurality of pole pieces. The number of the pressing knives included in each pressing assembly is not limited to 5, and the pressing knives can be multiple. The pressing lifting mechanism is not limited to two pairs, and can be a plurality of pairs, and the realization mode is not limited to an eccentric wheel structure, and can also be other lifting modes such as an air cylinder and a module. The pressing translation mechanism is not limited to two pairs, and can be a plurality of pairs, and the implementation mode is not limited to a linear motor mode, and other translation modes such as an air cylinder and a module can be realized. The material pressing component is not limited to two pairs, and can be a plurality of pairs.

Compared with the prior art, the many tucking lamination device of this embodiment places a plurality of pole pieces and carries out many tucking lamination operations simultaneously at the lamination bench, adopt and press the material subassembly to compress tightly a plurality of pole pieces more, every presses the material subassembly to include a plurality of tucking blades, every pole piece respectively has a pair of tucking blade to compress tightly with one side during the lamination, make the pole piece drunkenness when avoiding Z type diaphragm, thereby guarantee the precision and the efficiency of a plurality of pole piece laminations, a plurality of pole pieces carry out the lamination operation simultaneously, the holistic space utilization of device has also been improved. Adopt and to compress tightly elevating system and compress tightly translation mechanism to control a plurality of pressure material subassemblies more, adopt a plurality of pressure material subassemblies to compress tightly in turn a plurality of electrode slices, adopt linear electric motor control to press the mode of material subassembly advance and retreat, the purpose all lies in improving lamination device efficiency.

The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A multi-press-pin lamination device is characterized by comprising two pairs of pressing lifting mechanisms, two pairs of pressing translation mechanisms, a lamination table lifting mechanism, an auxiliary lifting mechanism, a table board, two pairs of pressing assemblies and a diaphragm correction mechanism;

2. The multi-presser lamination device of claim 1, wherein the pressing and lifting mechanism comprises a lifting servo motor, an eccentric wheel and a lifting transmission part, the lifting servo motor is connected with the eccentric wheel through the lifting transmission part, the lifting servo motor drives the eccentric wheel to act, and the eccentric wheel is in contact with the pressing assemblies to control the two pairs of pressing assemblies to move up and down.

3. The multi-press-pin lamination device according to claim 1, wherein the pressing translation mechanism comprises a translation linear motor and a pressing assembly connecting part, the translation linear motor is connected with the pressing assembly through the pressing assembly connecting part, and the translation linear motor controls each pair of pressing assemblies to move towards each other to be close to the lamination table or move away from the lamination table in an opposite manner.

4. The multi-presser foot lamination device of claim 1, wherein the lamination table lifting mechanism comprises a lamination table servo motor, a lamination table lead screw transmission part and a support plate, the lamination table servo motor is connected with the support plate through the lamination table lead screw transmission part, and the lamination table servo motor controls a table panel to move up and down through the support plate so as to ensure that the cells pressed by the pressing mechanism at each time are located at the same height.

5. The multi-press pin lamination device according to claim 1, wherein the auxiliary lifting mechanism comprises an auxiliary servo motor, an auxiliary screw transmission part, an inclined support plate and a middle support block; the auxiliary servo motor is connected with the inclined support plate through an auxiliary lead screw transmission part, and the inclined support plate contacts and drives the middle support block in the movement process; when the middle supporting block rises, the hollow part of the table top plate is filled, and the whole plane of the table top plate is supported when the table top plate is laminated; after lamination is completed, the middle supporting block descends, so that the battery core can be conveniently rotated out from the table top plate, and the lifting action of the whole auxiliary lifting mechanism is consistent with that of the lamination table lifting mechanism.

6. The multiple press pin lamination device of claim 1, wherein the deck plate comprises a T-shaped support block and two side support blocks; the T-shaped supporting blocks are arranged and combined in parallel in the horizontal plane, and the supporting blocks at two sides are arranged at two sides of the T-shaped supporting blocks.

7. The multi-press pin lamination device of claim 6, wherein the T-shaped support block is a vacuum suction structure.

8. The multi-pressing-needle laminating device according to claim 1, wherein the pressing assembly comprises a pressing knife connecting rod and a pressing knife, the pressing knife connecting rod is connected with one side end of the pressing knife, and the pole pieces are pressed by the pressing knife of the pressing assembly during laminating.

9. The multi-press pin lamination device of claim 1, wherein the diaphragm correction mechanism comprises a correction servo motor, a correction screw transmission part and a movable suction plate; the correction servo motor is connected with the movable suction plate through the correction screw rod transmission part, and the correction servo motor acts to drive the movable suction plate to move.

10. The multi-press pin lamination device of claim 9, wherein the movable suction plate is a vacuum suction structure.