A device for pulling a septum and aspirating a cutting electrode

Abstract

The application discloses a kind of pull septum and suction cut polar piece device, including first translation mechanism, second translation mechanism, pull septum mechanism and suction piece cutting mechanism;First translation mechanism is horizontally arranged between two polar piece conveying belts;Suction piece cutting mechanism is arranged at the bottom of first translation mechanism, and is connected with the output end of first translation mechanism, and suction piece cutting mechanism is cut into at least two pieces after polar piece is adsorbed from polar piece conveying belt;Second translation mechanism is arranged in the side of polar piece cutting mechanism;Pull septum mechanism is arranged in the side of second translation mechanism, and after septum end is taken out from the lower part of polar piece conveying belt, second translation mechanism drives pull septum mechanism to move linearly and pull out septum.This application completes the automatic superposition of multiple polar pieces at a time, greatly improves the capacity of polar piece, has synchronous polar piece, pull septum and polar piece cutting, simplifies structure and process action, and shortens the time consumption before polar piece processing.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automation equipment, in particular to a device for pulling a diaphragm and cutting an electrode sheet. BACKGROUND

[0002] With the vigorous promotion of new energy development by the country, the demand for lithium-ion power batteries in various industries is increasing. In the production process of lithium-ion power batteries, the positive and negative electrode sheets are overlapped to form an electrode sheet group. A diaphragm needs to be inserted between adjacent positive or negative electrode sheets to block them. After the positive and negative electrode sheets are separated by the diaphragm, they are cross-laminated to form the electrode sheet group of the battery. The laminated electrode sheet group needs to be heat pressed and solidified. After heat pressing, the electrode sheet group needs to be wrapped with multiple strips of adhesive tape to fix the electrode sheet group for subsequent processing. In the electrode sheet lamination section, the key core process is the cross-lamination of positive and negative electrode sheets and the insertion of a diaphragm between the cross-laminated positive and negative electrode sheets to separate them. The electrode sheet is in a continuous uncut state when it is delivered. Before the electrode sheet is laminated, it needs to be cut into independent sheet electrode sheets. The diaphragm is also delivered in a continuous coiled strip structure. The diaphragm needs to be pulled out and covered on the surface of the electrode sheet before being cut. The traditional single-sheet single-station lamination method has low lamination efficiency and cannot meet the lamination needs of high-speed automated production lines. In order to meet the existing lamination capacity needs of customers and to adapt to future development needs, a single action needs to complete the lamination of multiple electrode sheets, and the above-mentioned electrode sheet taking, cutting, and diaphragm pulling need to be coordinated. SUMMARY

[0003] The technical problem to be solved by the present application is to provide an automatic lamination device for completing the lamination of multiple electrode sheets in a single operation, which greatly improves the lamination capacity, has the functions of simultaneous electrode sheet taking, diaphragm pulling, and electrode sheet cutting, simplifies the structure and process actions, and shortens the time consumption of diaphragm pulling and electrode sheet cutting before lamination.

[0004] The technical solution adopted by the present application is as follows: a diaphragm pulling and electrode sheet cutting device, comprising a first translation mechanism, a second translation mechanism, a diaphragm pulling mechanism, and a sheet cutting mechanism; wherein the first translation mechanism is horizontally arranged between two electrode sheet conveying belts; the sheet cutting mechanism is arranged at the bottom of the first translation mechanism and connected with the output end of the first translation mechanism, which cuts the electrode sheet into at least two pieces after absorbing the electrode sheet from the electrode sheet conveying belt; the second translation mechanism is arranged at the side of the sheet cutting mechanism and connected with the output end of the first translation mechanism; the diaphragm pulling mechanism is arranged at the side of the second translation mechanism and connected with the output end of the second translation mechanism, which pulls out the diaphragm after clamping the diaphragm end from the lower part of the electrode sheet conveying belt.

[0005] Preferably, the first translation mechanism comprises a first linear module and a first sliding seat; the first linear module is horizontally arranged; and the first sliding seat is arranged on the first linear module in a slidable manner and is driven by the first linear module to move horizontally.

[0006] Preferably, the second translation mechanism comprises a second linear module and a second sliding seat; the second linear module is horizontally arranged at the lower end of the first sliding seat; and the second sliding seat is horizontally arranged and connected with the output end of the second linear module and is driven by the second linear module to slide horizontally.

[0007] Preferably, the diaphragm mechanism comprises a lifting cylinder, a lifting sliding seat, a diaphragm clamping cylinder clamping seat and a clamping block; the lifting cylinder is arranged on the side wall of the second sliding seat and moves horizontally with the second sliding seat; the lifting sliding seat is slidably connected with the side wall of the second sliding seat in the vertical direction and is connected with the output end of the lifting cylinder.

[0008] Preferably, the clamping seat is horizontally arranged at the bottom of the lifting sliding seat, and at least two vertical extension support tables are arranged on the clamping seat; the diaphragm clamping cylinder comprises at least two diaphragm clamping cylinders which are arranged on the side of the support table and have the output end arranged downward; and the clamping block is horizontally arranged above the clamping seat and is connected with the output end of the diaphragm clamping cylinder, so that the diaphragm clamping cylinder drives the clamping block to lift and clamp the end of the diaphragm.

[0009] Preferably, the suction piece cutting mechanism comprises a suction pole piece cylinder, a suction plate and a cutting piece; the suction pole piece cylinder comprises at least two suction pole piece cylinders which are vertically arranged at the bottom of the first sliding seat and have the output end arranged downward; the suction plate comprises at least two suction plates which are horizontally connected with the output end of the suction pole piece cylinder, so that the suction pole piece cylinder drives the suction plate to descend and suck the pole piece from the pole piece conveying belt.

[0010] Preferably, the cutting piece comprises at least two cutting pieces which comprise a U-shaped support and a wire; the U-shaped support cutting piece is arranged outside the outermost suction plate and between the adjacent suction plates, and the bottom of the U-shaped support cutting piece is an open structure; the wire is horizontally arranged at the opening of the U-shaped support; when the suction plate sucks the continuous pole piece on the pole piece conveying belt and rises, the continuous pole piece is cut into independent pole pieces by the wire.

[0011] Advantages of the present application

[0012] The present application independently researches and designs an automatic stacking of multiple pole pieces at a time in view of the defects and deficiencies of the prior art, greatly improves the stacking capacity, has the functions of synchronous pole piece taking, diaphragm pulling and pole piece cutting, simplifies the structure and process operation, and shortens the time consumption of the diaphragm pulling and suction cutting pole piece device before stacking.

[0013] In view of the process requirement of synchronous lamination of multiple pole pieces and diaphragm insertion isolation, the application creatively designs a diaphragm pulling and pole piece sucking device. The application integrates the functions of pole piece sucking, pole piece cutting and diaphragm pulling. After four pole pieces are sucked from the conveying belt, the four connected pole pieces are moved upward, and the four pole pieces are cut into single pole pieces at the same time, so that the four single pole pieces can be placed on the lamination platform. After the pole pieces are laminated, the diaphragm needs to be covered on the surface of the pole pieces. After the pole pieces are cut and lifted, the strip-shaped diaphragm is clamped and pulled out from below the pole pieces. After the diaphragm and the pole pieces are moved to above the lamination platform, the diaphragm is covered on the surface of the laminated pole pieces on the lamination platform. Then the pole pieces are lowered and placed above the diaphragm to complete the action of taking pole pieces, cutting pole pieces, pulling diaphragm, covering diaphragm and laminating pole pieces. The strip-shaped diaphragm is cut by the diaphragm cutting mechanism arranged on one side of the lamination platform corresponding to a single pole piece. The whole application includes a first translation mechanism, a second translation mechanism, a diaphragm pulling mechanism and a piece sucking and cutting mechanism. The first linear module of the first translation mechanism is arranged above the lamination platform between the two conveying belts. The first linear module drives the first sliding seat below it to move back and forth linearly. The bottom of the first sliding seat is provided with four sets of piece sucking and cutting mechanisms. The piece sucking and cutting mechanism is driven by a vertically arranged pole piece sucking cylinder to lift the suction plate horizontally connected to the output end below. The suction plate sucks four connected pole pieces from the conveying belt through vacuum negative pressure. The U-shaped bracket with the opening downward is arranged between the adjacent suction plates. The cutting wire is arranged in the opening at the bottom of the U-shaped bracket along the side of the suction plate. The cutting wire can be tungsten wire. The cutting wire is connected with the external heating device to generate high temperature. When the suction plate sucks the pole pieces and drives the pole pieces to move upward, the connected pole pieces are cut into single pole pieces by the high-temperature tungsten wire. The second linear module of the second translation mechanism of the diaphragm pulling and pole piece sucking device is arranged on the first sliding seat. The second linear module is arranged in the same direction as the first linear module. The output end of the second linear module is connected with the second sliding seat. The second sliding seat extends to the outside of the end of the second linear module and vertically extends downward to the side of the suction plate. The bottom of the second sliding seat is horizontally provided with a strip-shaped clamping seat extending toward the suction plate. A plurality of vertically extending support tables are arranged in parallel and at intervals on the clamping seat. The diaphragm clamping cylinder with the output end downward is arranged on each support table. The strip-shaped clamping block is arranged horizontally at the lower part of the output end of the diaphragm clamping cylinder. The diaphragm clamping cylinder drives the clamping block to move up and down above the clamping seat. After the end of the diaphragm is clamped by the clamping block and the clamping seat, the second linear module drives the second sliding seat to pull out the diaphragm. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is one of the schematic diagrams of the three-dimensional structure of the application.

[0015] Fig. 2 It is the second schematic diagram of the three-dimensional structure of the application. DETAILED DESCRIPTION

[0016] The application will be further described below with reference to the drawings:

[0017] As Figs. 1-2 shown, the technical solutions adopted by the application are as follows: a device for pulling a diaphragm and cutting an electrode sheet, comprising a first translation mechanism, a second translation mechanism, a diaphragm pulling mechanism and a sheet cutting mechanism; wherein the first translation mechanism is horizontally arranged between two electrode sheet conveying belts; the sheet cutting mechanism is arranged at the bottom of the first translation mechanism and connected with the output end of the first translation mechanism, and the sheet cutting mechanism cuts the electrode sheet into at least two pieces after adsorbing the electrode sheet from the electrode sheet conveying belt; the second translation mechanism is arranged at the side of the sheet cutting mechanism and connected with the output end of the first translation mechanism; the diaphragm pulling mechanism is arranged at the side of the second translation mechanism and connected with the output end of the second translation mechanism, and the diaphragm pulling mechanism clamps the end of the diaphragm extending out from the lower part of the electrode sheet conveying belt, and then the second translation mechanism drives the diaphragm pulling mechanism to move linearly to pull out the diaphragm.

[0018] The first translation mechanism comprises a first linear module 41 and a first sliding base 42; wherein the first linear module 41 is horizontally arranged; the first sliding base 42 is arranged to be slidably connected to the first linear module 41 and driven by the first linear module 41 to move horizontally.

[0019] The second translation mechanism comprises a second linear module 43 and a second sliding base 44; the second linear module 43 is horizontally arranged at the lower end of the first sliding base 42; the second sliding base 44 is horizontally arranged and connected with the output end of the second linear module 43, and driven by the second linear module 43 to slide horizontally.

[0020] The diaphragm mechanism comprises a lifting cylinder 45, a lifting sliding base 46, a diaphragm clamping cylinder 47, a clamping seat 411 and a clamping block 48; wherein the lifting cylinder 45 is arranged on the side wall of the second sliding base 44 and moves horizontally with the second sliding base 44; the lifting sliding base 46 is slidably connected to the side wall of the second sliding base 44 in the vertical direction and connected with the output end of the lifting cylinder 45.

[0021] The clamping seat 411 is horizontally arranged at the bottom of the lifting sliding base 46, and at least two vertical extension supports are arranged on the clamping seat 411; the diaphragm clamping cylinder 47 comprises at least two diaphragm clamping cylinders 7 arranged at the side of the supports, and the output ends of the diaphragm clamping cylinders 7 are arranged downward; the clamping block 48 is horizontally arranged above the clamping seat 411 and connected with the output ends of the diaphragm clamping cylinders 47, and the diaphragm clamping cylinders 47 drive the clamping block 48 to lift and clamp the end of the diaphragm.

[0022] The suction piece cutting mechanism comprises a suction pole piece cylinder, a suction plate 49 and a cutting piece 410. The suction pole piece cylinder comprises at least two, is vertically arranged at the bottom of the first sliding seat 42, and the output end is arranged downward. The suction plate 49 comprises at least two, is horizontally connected to the output end of the suction pole piece cylinder, and the suction pole piece cylinder drives the suction plate 49 to descend to suck the pole piece from the pole piece conveying belt.

[0023] The cutting piece 410 comprises at least two, comprises a U-shaped support and a cutting wire, the U-shaped support cutting piece is arranged outside the outermost suction plate 49 and between the adjacent suction plates 49, the bottom is an open structure, the cutting wire is horizontally arranged at the opening of the U-shaped support, when the suction plate 49 sucks the continuous pole piece on the pole piece conveying belt and rises, the continuous pole piece is cut into independent pole pieces by the cutting wire.

[0024] Further, the application designs a single completion of multiple pole pieces automatic stacking, greatly improves the stacking capacity, has synchronous pole piece, pull membrane and pole piece cutting, simplifies the structure and process action, shortens the pull membrane and suction cutting pole piece device of pre-processing time. According to the process requirement of synchronous stacking of multiple pole pieces and membrane insertion isolation, the application creatively designs a pull membrane suction pole piece device, the application integrates suction pole piece, pole piece cutting and pull membrane function, the application will four pole pieces from the transmission belt suction, drive four connected pole pieces upward movement, four pole pieces are cut into single pole pieces in the process, so that four single pole pieces are placed on the stacking platform, at the same time, since the pole piece is stacked on the surface, the membrane is covered, after the pole piece is cut, the application clamps the strip-shaped membrane and pulls it out from the bottom of the pole piece, the membrane and the pole piece move to the top of the stacking platform, the membrane covers the surface of the stacked pole piece on the stacking platform, the pole piece is lowered and placed above the membrane, and the action of taking pole piece, cutting pole piece, pulling membrane, covering membrane and stacking pole piece is completed; The strip-shaped membrane is cut by the membrane cutting mechanism arranged on one side of the stacking platform corresponding to a single pole piece. The whole application comprises a first translation mechanism, a second translation mechanism, a pull membrane mechanism and a suction piece cutting mechanism, the first linear module of the first translation mechanism is arranged above the stacking platform between the two transmission belts, the first linear module drives the first slide connected below to move linearly back and forth; The bottom of the first slide is provided with four sets of suction piece cutting mechanisms, the suction piece cutting mechanism is driven by the vertically arranged suction pole cylinder to drive the suction plate connected to the lower output end to move up and down, the suction plate sucks four connected pole pieces from the transmission belt through vacuum negative pressure, the U-shaped support with the opening downward is arranged between the adjacent suction plates, the opening at the bottom of the U-shaped support is provided with a cutting wire along the side of the suction plate, the cutting wire can be a tungsten wire, which is connected with the external heating device to generate high temperature, when the suction plate sucks the pole piece and drives the pole piece to move upward, the connected pole pieces are cut into single pole pieces by the tungsten wire. The second linear module of the second translation mechanism of the pull membrane suction pole piece device is arranged on the first slide, the second linear module is arranged in the same direction as the first linear module, the output end of the second linear module is connected with the second slide, the second slide extends to the outside of the end of the second linear module and vertically extends to the side of the suction plate, the bottom of the second slide is horizontally provided with a strip-shaped clamping seat extending towards the suction plate, a plurality of vertical extension supports are horizontally and spaced apart arranged on the clamping seat, a membrane clamping cylinder with the output end downward is arranged on each support, a strip-shaped clamping block is horizontally arranged on the lower part of the output end of the membrane clamping cylinder, the membrane clamping cylinder drives the clamping block to move up and down above the clamping seat, after the end of the membrane is clamped by the clamping block and the clamping seat, the second linear module drives the second slide to pull the membrane out.

[0025] The embodiments of the present application only introduce the specific implementation, and are not intended to limit the protection scope. Some modifications can be made by those skilled in the art under the inspiration of the embodiments, and equivalent changes or modifications made according to the patent scope of the present application shall fall within the patent claim scope of the present application.

Claims

1. A device for stretching a diaphragm and cutting an electrode sheet, characterized in that: The first translation mechanism, the second translation mechanism, the membrane pulling mechanism and the piece suction cutting mechanism are included, wherein the first translation mechanism is horizontally arranged between the two pole piece conveying belts; the piece suction cutting mechanism is arranged at the bottom of the first translation mechanism and connected with the output end of the first translation mechanism, the piece suction cutting mechanism cuts the pole piece into at least two pieces after the pole piece is adsorbed from the pole piece conveying belt; the second translation mechanism is arranged at the side of the piece suction cutting mechanism and connected with the output end of the first translation mechanism; the membrane pulling mechanism is arranged at the side of the second translation mechanism and connected with the output end of the second translation mechanism, the membrane pulling mechanism clamps the membrane end head extending outwards from the lower part of the pole piece conveying belt, and then the second translation mechanism drives the membrane pulling mechanism to move linearly to pull out the membrane. The membrane pulling mechanism includes a lifting cylinder (45), a lifting slide (46), a membrane clamping cylinder (47), a clamping seat (411) and a clamping block (48), wherein the lifting cylinder (45) is arranged on the side wall of the second slide (44) and moves horizontally with the second slide (44); the lifting slide (46) is slidably connected to the side wall of the second slide (44) in the vertical direction and connected with the output end of the lifting cylinder (45). The piece suction cutting mechanism includes a pole piece suction cylinder, a suction plate (49) and a cutting piece (410), wherein the pole piece suction cylinder includes at least two, the pole piece suction cylinder is vertically arranged at the bottom of the first slide (42) and the output end is downwardly arranged; the suction plate (49) includes at least two, the suction plate (49) is horizontally connected to the output end of the pole piece suction cylinder, and the pole piece suction cylinder drives the suction plate (49) to descend and adsorb the pole piece from the pole piece conveying belt. The cutting piece (410) includes at least two, the cutting piece (410) includes a U-shaped support and a wire, the wire is tungsten wire, the U-shaped support cutting piece is arranged outside the outermost suction plate (49) and between the adjacent suction plates (49), the bottom of the U-shaped support cutting piece is an open structure, the wire is horizontally arranged at the opening of the U-shaped support, and when the suction plate (49) adsorbs the continuous pole piece from the pole piece conveying belt and rises, the continuous pole piece is cut into independent pole pieces by the wire.

2. The device of claim 1, wherein: The first translation mechanism includes a first linear module (41) and a first slide (42), wherein the first linear module (41) is horizontally arranged; the first slide (42) is slidably connected to the first linear module (41) and horizontally moves driven by the first linear module (41).

3. The device of claim 2, wherein: The second translation mechanism includes a second linear module (43) and a second slide (44), wherein the second linear module (43) is horizontally arranged at the lower end of the first slide (42); the second slide (44) is horizontally arranged and connected with the output end of the second linear module (43), and horizontally slides driven by the second linear module (43).

4. The device of claim 3, wherein: The clamping seat (411) is horizontally arranged at the bottom of the lifting slide (46), and at least two vertical extension support tables are arranged on the clamping seat (411); the film clamping cylinder (47) includes at least two, and the output end of the film clamping cylinder (47) is arranged downward at the side of the support table; the clamping block (48) is horizontally arranged above the clamping seat (411) and is connected with the output end of the film clamping cylinder (47), and the film clamping cylinder (47) drives the clamping block (48) to lift so as to clamp the end of the diaphragm.

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