CN117276633B - Film covering mechanism for ultra-high speed lamination machine - Google Patents

Film covering mechanism for ultra-high speed lamination machine Download PDF

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Publication number
CN117276633B
CN117276633B CN202311571906.4A CN202311571906A CN117276633B CN 117276633 B CN117276633 B CN 117276633B CN 202311571906 A CN202311571906 A CN 202311571906A CN 117276633 B CN117276633 B CN 117276633B
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film
pressing
cutting
module
plate
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CN117276633A (en
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请求不公布姓名
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Jiangsu Fenghesheng Intelligent Technology Co ltd
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Jiangsu Fenghesheng Intelligent Technology Co ltd
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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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0431—Cells with wound or folded electrodes
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/045—Cells or batteries with folded plate-like electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/005—Devices for making primary cells
    • 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 film covering mechanism for an ultra-high speed lamination machine, and belongs to the technical field of lamination machines. The film covering mechanism comprises: a distance changing module, a film drawing module and a pressing and cutting module are arranged on the frame; wherein: the distance changing module is horizontally arranged on the frame and drives at least two parallel film covering platforms to approach or separate in the horizontal plane, and the film covering platforms are provided with electric cores; the film pulling workpiece of the film pulling module above the variable-pitch module pulls the film to move along the width direction of the battery cell; the pressing and cutting die arranged above the film pulling die set is in one-to-one correspondence with the film covering platforms, and when the film covering platforms are close to each other, the film pressing assembly and the film cutting assembly compress and cut the film. Compared with a single-piece stacked lamination mode, the lamination mode reduces the procedures of taking the diaphragm and stacking the diaphragm for many times, and the unit body directly flows to the next procedure to cover the first-layer diaphragm after being stacked, so that the overall lamination efficiency is improved.

Description

Film covering mechanism for ultra-high speed lamination machine
Technical Field
The invention relates to the field of lamination machines, in particular to a film covering mechanism for an ultra-high speed lamination machine.
Background
The lamination machine is equipment for lamination of the battery cell, and sequentially stacks the positive electrode unit body and the negative electrode unit body to form the battery cell module.
In the prior art, a single-piece stacking process is adopted, a diaphragm is cut into a single-piece structure before stacking, after stacking positive and negative pole pieces, the single-piece diaphragm is stacked on the surface of a positive pole piece or a negative pole piece to realize stacking, and the diaphragm stacking process needs to take the diaphragm for multiple times, so that the stacking efficiency is low, the diaphragm is required to be aligned before stacking in order to ensure the position precision of each lamination, and the position precision of the lamination is difficult to effectively ensure.
Therefore, the application aims to design a film covering mechanism for an ultra-high speed lamination machine aiming at the technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a film covering mechanism for an ultra-high speed lamination machine.
The technical scheme of the invention is as follows: a tectorial membrane mechanism for superhigh speed lamination machine includes:
the frame is provided with a distance changing module, a film drawing module and a pressing and cutting module; wherein:
the distance changing module is horizontally arranged on the frame and comprises a distance changing assembly, the distance changing assembly drives at least two parallel film covering platforms to approach or separate in a horizontal plane, and a battery cell is arranged on the film covering platforms;
the film drawing module above the variable-pitch module comprises: the film pulling driving assembly is arranged on the film pulling seat and drives the film pulling seat to move along the length direction and the height direction of the film, and a film pulling workpiece capable of clamping the film is arranged on the film pulling seat;
the pressing and cutting module above the film drawing module comprises: the press cutting driving assembly is arranged along the vertical direction, the press cutting driving assembly is provided with a press cutting seat, the press cutting seat is provided with a press film assembly and a film cutting assembly, the press film assembly, the film cutting assembly and the film covering platform are arranged in one-to-one correspondence, and when the film covering platform is close to the press film assembly, the press film assembly and the film cutting assembly work on the film.
Further, the variable-pitch module comprises: the device comprises a variable-pitch substrate, wherein a variable-pitch assembly is arranged on the variable-pitch substrate; the pitch assembly comprises:
the variable-pitch driving source is a linear driving source; and
the number of the diamonds of the diamond-shaped distance changing frame is one less than that of the laminating platforms, one end of the diamond-shaped distance changing frame is fixedly arranged on the distance changing substrate through a hinged fixing piece, and the other end of the diamond-shaped distance changing frame is connected with the driving end of the distance changing driving source; hinge shafts are arranged at four corners of a diamond frame of the diamond pitch-changing frame, the hinge shafts on the central axis of the diamond pitch-changing frame extend upwards, and the extending ends are connected with a laminating platform. The central axis of the diamond-shaped variable-pitch frame is parallel or coincident with the driving direction of the variable-pitch driving source, and generally, the axis is coincident, for example, the axis is directly driven by an air cylinder, an electric cylinder or a screw rod assembly; meanwhile, the position of the film coating platform at one end which is fixedly arranged is fixed, namely the film coating platform is used as a reference, the rest film coating platforms are sequentially separated under the drive of the diamond-shaped distance changing frame, the separation distance is uniform all the time, and the diamond-shaped distance changing frame can play a uniform separation effect. Meanwhile, a photoelectric sensor is arranged between the variable-pitch substrate and a film coating platform close to the variable-pitch driving source, so that the separation distance can be controlled, and the film coating platform is required to be coated in a close state in order to avoid waste of films during film coating.
Further, a film coating sliding rail and a film coating sliding block which are matched with each other are further arranged between the film coating platform and the variable-pitch substrate, and the direction of the film coating sliding rail is parallel to the central axis of the diamond-shaped variable-pitch frame. The laminating slide rail can set up two sets of, and the symmetry sets up in the both sides of diamond displacement frame respectively, and the laminating slide rail of homonymy can be public moreover, and laminating slider and laminating platform one-to-one set up.
Further, the electric core length direction of tectorial membrane platform is perpendicular with the axis of diamond-shaped displacement frame, and all is provided with electric core pressure sword along electric core length direction's tectorial membrane platform both ends, electric core pressure sword includes: the sliding table cylinder that sets up along vertical direction, the top of sliding table cylinder sets up the clamp block, just the clamp block is located the top of tectorial membrane platform. The electric core on the laminating platform can be pressed by arranging the electric core pressing cutters at the two ends.
Further, still be provided with the pressure sword on the electricity core pressure sword and separate the module, the pressure sword separates the module and includes:
the motor is fixed to be set up at the separation motor of displacement base plate lower extreme, set up the separation gear on the conveying axle of separation motor, with the separation rack slip setting of separation gear engagement is in the lower extreme of displacement base plate, separate rack parallel arrangement two and be located the both sides of separation gear respectively, simultaneously separate rack and electric core length direction are parallel, two separate the rack respectively through linkage board and the electric core press knife sliding connection of both sides, just electric core press knife and linkage board's slip direction is perpendicular with the length direction of electric core. The separation of the cell pressing cutters at the two sides is realized, and the convenience of placing the cells on the laminating platform is improved.
Further, one of the separate racks is in sliding connection with the left battery cell pressing knife through the left linkage plate, the other separate rack is in sliding connection with the right battery cell pressing knife through the right linkage plate, and a sliding rail and a sliding block are also adopted for sliding connection, and the direction of the sliding rail is perpendicular to the length direction of the battery cell; the synchronous outward or synchronous inward of the cell pressing cutters at the two sides is ensured.
Further, a separation sliding block and a separation sliding rail are further arranged below the sliding table cylinder of the battery cell pressing knife and the laminating platform, and the separation sliding rail is coincident with or parallel to the length direction of the battery cell. The stability of the separation process is ensured.
Further, draw membrane drive assembly to set up in the one side of the length direction of electric core, draw membrane drive assembly includes:
the film drawing mounting plate is connected with the frame;
a lifting driving source (which can be a cylinder, an electric cylinder or a screw rod assembly) is arranged on the outer side of one side of the film pulling mounting plate along the vertical direction, a linear module is arranged at the driving end of the lifting driving source, and the linear module is arranged along the horizontal direction and is parallel to the length direction of the film; (the linear module is perpendicular to the length direction of the cell).
Further, the film pulling seat is arranged in parallel along the length direction of the battery cell.
Furthermore, the film pulling workpiece is a finger cylinder, the finger cylinder is separated and combined in the vertical direction, and a clamping plate which is in up-down mirror image and can clamp the film is arranged on the finger cylinder, and the clamping plate is parallel to the width direction of the film. The finger cylinder symmetry sets up two, has guaranteed the stability of pressing from both sides tightly.
Further, the clamping plate includes a vertical portion connected with the driving portion of the finger cylinder and a horizontal portion in contact with the diaphragm. The stable clamping of the membrane is ensured, and the membrane pulling is realized.
Further, draw the membrane module still including drawing the fixed subassembly of membrane, draw the fixed subassembly of membrane and include:
the two film pulling fixing vertical plates are arranged vertically and are respectively and symmetrically positioned at two sides of the width direction of the film;
the film pulling fixing transverse plate is horizontally arranged between the two film pulling fixing vertical plates, and the film pulling fixing transverse plate is parallel to the width direction of the film;
the film pulling movable transverse plate, two ends of the film pulling movable transverse plate are respectively arranged on the film pulling fixed vertical plate through film pulling cylinders which are vertically arranged, and the film pulling movable transverse plate is parallel and positioned above the film pulling fixed transverse plate. The membrane is pressed tightly by the membrane pulling fixed transverse plate and the membrane pulling movable transverse plate, so that membrane cutting is convenient to realize.
Further, the press-cutting driving assembly includes: the pressing and cutting mounting plate is connected with the frame; and the pressing and cutting driving source is arranged on the pressing and cutting mounting plate and is vertically downwards arranged. Can be cylinder, electric jar or lead screw subassembly, the application suggests to use the lead screw subassembly, guarantees the accurate control of pushing down.
Further, the film pressing assembly includes:
the film pressing plate is arranged above the battery cell;
the film pressing connecting plates are arranged and are respectively positioned at two sides of the film pressing plate;
the first limiting plate is arranged on the pressing and cutting seat;
the second limiting plate is arranged on the film pressing connecting plate, and the second limiting plate is propped against the upper side of the first limiting plate, and under the action of external force, the film pressing plate moves upwards and is positioned above the film cutter of the film cutting assembly. When the film pressing plate does not work, the second limiting plate is abutted against the upper side of the first limiting plate under the action of gravity; as driven downward, the die plate contacts the surface of the cell and moves upward until the diaphragm cutter cuts the diaphragm.
Further, a spring mounting hole is formed in the film pressing connecting plate, a spring limiting plate is arranged on the pressing cutting seat, a buffer spring is arranged between the spring mounting hole and the spring limiting plate, the upper end of the buffer spring is in butt joint with the spring limiting plate, and the buffer spring always presses the film pressing connecting plate downwards. The stability of the film pressing plate is guaranteed, and meanwhile, the pressing state can be guaranteed while the battery cell is contacted.
Further, still vertical setting presses membrane slide rail and presses membrane slider between pressing membrane connecting plate and pressing and cutting the seat, and presses the membrane slide rail to be located presses and cut on the seat, just press the lower extreme of membrane slide rail to have the clearance between first limiting plate, set up the second limiting plate in this clearance department. The film pressing connecting plate can only move along the vertical direction, the up-and-down movement range of the second limiting plate is limited, and when the second limiting plate contacts the lower part of the film pressing sliding rail, the film pressing plate is located above the film cutting knife.
Further, a buffer is further arranged on the film pressing seat, and the buffer faces the film pressing plate. Ensuring safety.
Further, the film cutting assembly comprises a film cutting tool holder, and the film cutting tool holder is arranged on the pressing and cutting seat through a film cutting bottom plate; the lower plate surface of the film cutting tool apron is provided with two blade mounting plates, and the two blade mounting plates are provided with a film cutter which is perpendicular to the length direction of the film. The membrane cutting assembly is fixedly arranged, so that the membrane is cut in the process of downwards driving along with the pressing and cutting driving assembly.
Furthermore, the diaphragm cutter is obliquely arranged, so that when the diaphragm is contacted, the diaphragm cutter is not in direct contact with the diaphragm, and the cutting quality can be improved.
The beneficial technical effects of the invention are as follows: the battery cell is innovatively manufactured by adopting a mode of covering the first layer of the diaphragm, and the lamination is only the alternate lamination of the positive and negative plates, so that the diaphragm is not required to be pulled back and forth to fold the material belt, the yield is improved, and the efficiency is increased. Compared with a single-piece stacked lamination mode, the lamination mode reduces the procedures of taking the diaphragm and stacking the diaphragm for many times, and the unit body directly flows to the next procedure to cover the first-layer diaphragm after being stacked, so that the overall lamination efficiency is improved.
Drawings
Fig. 1 is an overall schematic view of a film laminating mechanism.
Fig. 2 is a schematic diagram of a pitch module.
FIG. 3 is a schematic view of a pitch assembly.
Fig. 4 is a partial enlarged view of fig. 3.
Fig. 5 is a schematic diagram of a variable-pitch drive source.
Fig. 6 is a schematic view of a knife separation module.
Fig. 7 is a schematic sliding view of the cell knife and the linkage plate.
Fig. 8 is a schematic diagram of a film drawing module.
Fig. 9 is a schematic view of the elevation drive source.
Fig. 10 is a schematic view of a film pulling work piece.
Fig. 11 is a schematic view of a pull film fastening assembly.
Fig. 12 is a schematic view of a die set.
Fig. 13 is a schematic view of a press membrane assembly.
Fig. 14 is a partial enlarged view of fig. 13.
Fig. 15 is an internal schematic view of the press membrane assembly.
Fig. 16 is a cross-sectional view of a compression film assembly.
FIG. 17 is a cross-sectional view of the compression assembly in another position.
Fig. 18 is a schematic view of a slit film assembly.
Wherein:
1. the distance changing module, 11, the distance changing base plate, 12, the distance changing component, 121, the distance changing driving source, 122, the diamond-shaped distance changing frame, 123, the hinge fixing piece, 124, the hinge shaft, 13, the laminating platform, 14, the battery cell press knife, 141, the sliding table cylinder, 142, the press knife block, 15, the press knife separating module, 151, the separating motor, 152, the separating gear, 153, the separating rack, 154, the linkage plate,
2. a film drawing module, 21, a film drawing seat, 22, a film drawing driving component, 221, a film drawing mounting plate, 222, a lifting driving source, 223, a linear module, 23, a film drawing workpiece, 231, a finger cylinder, 232, a clamping plate, 24, a film drawing fixing component, 241, a film drawing fixing vertical plate, 242, a film drawing fixing transverse plate, 243, a film drawing moving transverse plate, 244 and a film drawing cylinder,
3. the device comprises a pressing and cutting module, 31, a pressing and cutting driving assembly, 311, a pressing and cutting mounting plate, 312, a pressing and cutting driving source, 32, a pressing and cutting seat, 33, a pressing and film assembly, 331, a film pressing plate, 332, a film pressing connecting plate, 3321, a spring mounting hole, 333, a first limiting plate, 334, a second limiting plate, 335, a film pressing sliding rail, 336, a film pressing sliding block, 337, a spring limiting plate, 338, a buffer spring, 34, a film cutting assembly, 341, a film cutting tool holder, 342, a blade mounting plate, 343 and a film cutter.
Detailed Description
In order that the manner in which the above recited features of the present invention are attained and can be understood in detail, a more particular description of the invention, briefly summarized below, may be had by reference to the appended drawings and examples, which are illustrated in their embodiments, but are not intended to limit the scope of the invention.
Referring to FIGS. 1-18, a film laminating mechanism for an ultra-high speed lamination machine according to the present embodiment comprises
A frame (not shown in the figure), a distance changing module 1, a film drawing module 2 and a pressing and cutting module 3 are arranged on the frame.
Wherein:
a first part: referring to fig. 2-7, the distance changing module 1 is horizontally arranged on a frame, the distance changing module 1 comprises a distance changing component 12, the distance changing component 12 drives at least two parallel arranged film covering platforms 13 to approach or separate in the horizontal plane, and an electric core is arranged on the film covering platforms 13.
The pitch module 1 includes: a pitch-changing substrate 11, a pitch-changing assembly 12 being provided on the pitch-changing substrate 11; the pitch assembly 12 comprises:
a variable-pitch drive source 121, the variable-pitch drive source 121 being a linear drive source; and
the number of the diamonds of the diamond-shaped distance changing frame 122 is one less than that of the laminating platforms 13, one end of the diamond-shaped distance changing frame 122 is fixedly arranged on the distance changing base plate 11 through a hinged fixing piece 123, and the other end of the diamond-shaped distance changing frame 122 is connected with the driving end of the distance changing driving source 121; hinge shafts 124 are arranged at four corners of the diamond frame of the diamond-shaped distance-changing frame 122, the hinge shafts 124 positioned on the central axis of the diamond-shaped distance-changing frame 122 extend upwards, and the extending ends are connected with the laminating platform 13. The central axis of the diamond-shaped pitch frame 122 is parallel to or coincident with the driving direction of the pitch drive source 121, and generally, the axes are arranged to be coincident, for example, directly driven by a cylinder, an electric cylinder or a screw assembly; meanwhile, the position of the film coating platform 13 at one end which is fixedly arranged is fixed, namely, the film coating platform is used as a reference, the rest film coating platforms 13 are sequentially separated under the drive of the diamond-shaped distance changing frame 122, and the separation distance is uniform all the time, so that the diamond-shaped distance changing frame 122 can play a uniform separation effect. At the same time, a photoelectric sensor is provided between the variable-pitch substrate 11 and the film deposition platform 13 adjacent to the variable-pitch drive source 121, so that the distance of separation can be controlled, and it is, of course, necessary to perform film deposition in a state of being adjacent to the film deposition platform 13 in order to avoid waste of film.
A film coating sliding rail and a film coating sliding block which are matched with each other are also arranged between the film coating platform 13 and the variable-pitch substrate 11, and the direction of the film coating sliding rail is parallel to the central axis (see the dotted line shown in fig. 4) of the diamond-shaped variable-pitch frame 122. The two groups of film-coated sliding rails can be symmetrically arranged on two sides of the diamond-shaped variable-pitch frame 122 respectively, the film-coated sliding rails on the same side can be used in common, and the film-coated sliding blocks are arranged in one-to-one correspondence with the film-coated platforms 13.
The electric core length direction of tectorial membrane platform 13 is perpendicular with the axis of diamond-type displacement frame 122, and is provided with electric core pressure sword 14 along electric core length direction's tectorial membrane platform 13 both ends, and electric core pressure sword 14 includes: the top of slip table cylinder 141 sets up the clamp block 142 along the slip table cylinder 141 of vertical direction setting, and clamp block 142 is located the top of tectorial membrane platform 13. Namely, the electric core on the laminating platform 13 can be pressed by arranging the electric core pressing cutters 14 at the two ends.
The cell pressing knife 14 is further provided with a pressing knife separating module 15, and the pressing knife separating module 15 comprises:
the separation motor 151 is fixedly arranged at the lower end of the variable-pitch substrate 11, the separation gear 152 is arranged on the conveying shaft of the separation motor 151, the separation racks 153 meshed with the separation gear 152 are slidably arranged at the lower end of the variable-pitch substrate 11, the separation racks 153 are arranged in parallel and are respectively positioned at two sides of the separation gear 152, meanwhile, the separation racks 153 are parallel to the length direction of the battery cell, the two separation racks 153 are respectively slidably connected with the battery cell press cutters 14 at the two sides through the linkage plate 154, and the sliding direction of the battery cell press cutters 14 and the linkage plate 154 is perpendicular to the length direction of the battery cell. The separation of the cell pressing knives 14 at the two sides is realized, and the convenience of placing the cells on the laminating platform 13 is improved.
One of the split racks 153 is in sliding connection with all the left cell press knives 14 through a left linkage plate 154, the other split rack 153 is in sliding connection with all the right cell press knives 14 through a right linkage plate 154, and a sliding rail and a sliding block are also adopted for sliding connection, wherein the direction of the sliding rail is perpendicular to the length direction of the cell; the synchronous outward or synchronous inward of the cell pressing knives 14 on both sides is ensured.
A separating slide block and a separating slide rail are further arranged below the sliding table cylinder 141 of the battery cell pressing knife 14 and the film coating platform 13, and the separating slide rail is overlapped with or parallel to the length direction of the battery cell. The stability of the separation process is ensured.
A second part: referring to fig. 8 to 11, the film drawing module 2 above the variable-pitch module 1 includes: a film pulling driving component 22 of the film pulling seat 21 is arranged, the film pulling driving component 22 drives the film pulling seat 21 to move along the length direction and the height direction of the film, and a film pulling workpiece 23 capable of clamping the film is arranged on the film pulling seat 21.
The film pulling driving assembly 22 is disposed at one side of the length direction of the battery cell, and the film pulling driving assembly 22 includes:
the film drawing mounting plate 221, the film drawing mounting plate 221 is connected with the frame;
a lifting driving source 222 (which may be a cylinder, an electric cylinder or a screw rod assembly) is arranged on the outer side of one side of the film drawing mounting plate 221 along the vertical direction, a linear module 223 is arranged at the driving end of the lifting driving source 222, and the linear module 223 is arranged along the horizontal direction and is parallel to the length direction of the film; (the linear module 223 is perpendicular to the length direction of the cell).
The film pulling seat 21 is arranged in parallel along the length direction of the battery cell.
The film drawing workpiece 23 is a finger cylinder 231, the finger cylinder 231 is divided and combined in the vertical direction, and a clamping plate 232 which is mirror image up and down and can clamp the film is arranged on the finger cylinder 231, and the clamping plate 232 is parallel to the width direction of the film. The finger cylinders 231 are symmetrically arranged in two, so that the clamping stability is ensured.
The clamping plate 232 includes a vertical portion connected to the driving portion of the finger cylinder 231 and a horizontal portion in contact with the diaphragm. The stable clamping of the membrane is ensured, and the membrane pulling is realized.
The film drawing module 2 further includes a film drawing fixing assembly 24, and the film drawing fixing assembly 24 includes:
the two film drawing fixing vertical plates 241 are vertically arranged, and the two film drawing fixing vertical plates 241 are respectively and symmetrically positioned at two sides of the width direction of the diaphragm;
a film-drawing fixed transverse plate 242, the film-drawing fixed transverse plate 242 being horizontally disposed between the two film-drawing fixed vertical plates 241, and the film-drawing fixed transverse plate 242 being parallel to the width direction of the film sheet;
the film pulling moving transverse plate 243, two ends of the film pulling moving transverse plate 243 are respectively arranged on the film pulling fixing vertical plate 241 through a film pulling air cylinder 244 which is vertically arranged, and the film pulling moving transverse plate 243 is parallel and is positioned above the film pulling fixing transverse plate 242. Namely, the film is pressed by the film pulling fixed transverse plate 242 and the film pulling movable transverse plate 243, so that film cutting is convenient to realize.
Third section: referring to fig. 12 to 18, the die-cut die set 3 located above the die-set 2 includes: the pressing and cutting driving assembly 31 is arranged along the vertical direction, the pressing and cutting driving assembly 31 is provided with the pressing and cutting seat 32, the pressing and cutting seat 32 is provided with the pressing film assembly 33 and the cutting film assembly 34, the pressing film assembly 33, the cutting film assembly 34 and the film covering platform 13 are arranged in one-to-one correspondence, and when the film covering platform 13 is close to the pressing film assembly 33 and the cutting film assembly 34 work on the film.
The press-cutting driving assembly 31 includes: a press-cutting mounting plate 311 connected with the frame; and a pressing and cutting drive source 312 provided on the pressing and cutting mounting plate 311 and disposed vertically downward. Can be cylinder, electric jar or lead screw subassembly, the application suggests to use the lead screw subassembly, guarantees the accurate control of pushing down.
The film pressing assembly 33 includes:
the film pressing plate 331 is arranged above the battery cell, and the film pressing plate 331 is arranged above the battery cell;
the film pressing connection plates 332 are arranged at two sides of the film pressing plate 331 respectively;
the first limiting plate 333 is arranged on the pressing and cutting seat 32;
the second limiting plate 334, the second limiting plate 334 is disposed on the film pressing connection plate 332, and the second limiting plate 334 abuts against the top of the first limiting plate 333, and under the action of external force, the film pressing plate 331 moves upwards and is located above the film cutter 343 of the film cutting assembly 34. That is, when the film pressing plate 331 is not working, the second limiting plate 334 abuts against the upper side of the first limiting plate 333 under the action of gravity; as driven downward, the die plate 331 contacts the cell surface and moves upward until the diaphragm cutter 343 cuts the diaphragm.
The film pressing connecting plate 332 is provided with a spring mounting hole 3321, the pressing cutting seat 32 is provided with a spring limiting plate 337, a buffer spring 338 is arranged between the spring mounting hole 3321 and the spring limiting plate 337, the upper end of the buffer spring 338 is abutted with the spring limiting plate 337, and the buffer spring 338 always presses the film pressing connecting plate 332 downwards. The stability of the film pressing plate 331 is ensured, and the pressing state can be ensured while the battery cell is contacted.
Still vertical setting presses membrane slide rail 335 and presses membrane slider 336 between pressing membrane connecting plate 332 and pressing and cutting seat 32, and presses membrane slide rail 335 to be located pressing and cutting seat 32, and presses the lower extreme of membrane slide rail 335 to have the clearance between first limiting plate 333, set up second limiting plate 334 in this clearance department. The film pressing connection plate 332 is ensured to be capable of moving only in the vertical direction, and the up-and-down moving range of the second limiting plate 334 is limited, and when the second limiting plate 334 contacts the lower side of the film pressing sliding rail 335, the film pressing plate 331 is located above the film cutting knife 343.
A buffer is also arranged on the film pressing seat, and faces to the film pressing plate 331. Ensuring safety.
The film cutting assembly 34 comprises a film cutting knife holder 341, and the film cutting knife holder 341 is arranged on the pressing and cutting seat 32 through a film cutting bottom plate; two blade mounting plates 342 are provided on the lower plate surface of the film cutting blade holder 341, and a film cutter 343 is provided on the two blade mounting plates 342 and perpendicular to the length direction of the film. The membrane is cut in the process of driving downwards along with the pressing and cutting driving assembly 31 by fixedly arranging the membrane cutting assembly 34.
The diaphragm cutter 343 is obliquely arranged, so that when the diaphragm is contacted, the diaphragm cutter is not directly and completely contacted, and the cutting quality can be improved.
The battery cell is innovatively manufactured by adopting a mode of covering the first layer of the diaphragm, and the lamination is only the alternate lamination of the positive and negative plates, so that the diaphragm is not required to be pulled back and forth to fold the material belt, the yield is improved, and the efficiency is increased. Compared with a single-piece stacked lamination mode, the lamination mode reduces the procedures of taking the diaphragm and stacking the diaphragm for many times, and the unit body directly flows to the next procedure to cover the first-layer diaphragm after being stacked, so that the overall lamination efficiency is improved.
The using method of the mechanism comprises the following steps:
s1, cell pitch change: the distance changing component changes the distance of the battery cells (from a separated state to a close state) so as to ensure the distance between adjacent battery cells to ensure that the protrusion amount of the diaphragm is consistent;
s2, pulling a diaphragm: in the step S1, when the cell is at a variable distance, the membrane pulling module synchronously pulls the membrane;
s3, cutting a diaphragm: the diaphragm in the step S2 descends towards the variable-pitch module, and after the pressing and cutting module presses the battery core and the first layer of diaphragm, the diaphragm continues to descend, and the diaphragm cutter cuts off the diaphragm;
s4, cell pitch change: and step S3, the film drawing module rises, the cell pitch is changed to be in-situ (from close to separation), and the manipulator waits for taking the discharge cell.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (8)

1. A film coating mechanism for a super speed lamination machine, comprising: a frame; the method is characterized in that:
a distance changing module (1), a film drawing module (2) and a pressing and cutting module (3) are arranged on the frame; wherein:
the distance changing module (1) is horizontally arranged on the frame, the distance changing module (1) comprises a distance changing component (12), the distance changing component (12) drives at least two film covering platforms (13) which are arranged in parallel to each other to approach or separate in the horizontal plane, and a battery cell is arranged on the film covering platforms (13); the variable-pitch module (1) comprises: a variable-pitch substrate (11), wherein a variable-pitch assembly (12) is arranged on the variable-pitch substrate (11); the pitch assembly (12) comprises: a variable-pitch drive source (121), the variable-pitch drive source (121) being a linear drive source; the number of the diamonds of the diamond-shaped distance changing frames (122) is one less than that of the laminating platforms (13), one end of each diamond-shaped distance changing frame (122) is fixedly arranged on the distance changing base plate (11) through a hinged fixing piece (123), and the other end of each diamond-shaped distance changing frame (122) is connected with the driving end of the distance changing driving source (121); hinge shafts (124) are arranged at four corners of a diamond frame of the diamond-shaped variable-pitch frame (122), the hinge shafts (124) positioned on the central axis of the diamond-shaped variable-pitch frame (122) extend upwards, and the extending ends are connected with a film covering platform (13);
the film drawing module (2) positioned above the variable-pitch module (1) comprises: the film pulling device comprises a film pulling driving assembly (22) provided with a film pulling seat (21), wherein the film pulling driving assembly (22) drives the film pulling seat (21) to move along the length direction and the height direction of a film, a film pulling workpiece (23) capable of clamping the film is arranged on the film pulling seat (21), the film pulling workpiece (23) is a finger cylinder (231), the finger cylinder (231) is separated and combined along the vertical direction, a clamping plate (232) which is in a mirror image and can clamp the film is arranged on the finger cylinder (231), and the clamping plate (232) is parallel to the width direction of the film;
the pressing and cutting module (3) positioned above the film drawing module (2) comprises: the pressing and cutting driving assembly (31) is arranged in the vertical direction, the pressing and cutting driving assembly (31) is provided with the pressing and cutting seat (32), the pressing and cutting seat (32) is provided with the pressing membrane assembly (33) and the cutting membrane assembly (34), the pressing membrane assembly (33), the cutting membrane assembly (34) and the membrane covering platform (13) are arranged in a one-to-one correspondence mode, and when the membrane covering platform (13) is close to each other, the pressing membrane assembly (33) and the cutting membrane assembly (34) work on the membrane.
2. The film laminating mechanism for an ultra-high speed lamination machine of claim 1, wherein: the electric core length direction of tectorial membrane platform (13) is perpendicular with the axis of diamond-type displacement frame (122), and is provided with electric core pressure sword (14) along electric core length direction's tectorial membrane platform (13) both ends, electric core pressure sword (14) include: the device comprises a sliding table cylinder (141) arranged along the vertical direction, wherein a cutter pressing block (142) is arranged at the top of the sliding table cylinder (141), and the cutter pressing block (142) is positioned above the film covering platform (13).
3. The film laminating mechanism for an ultra-high speed lamination machine according to claim 2, wherein: the battery cell voltage sword (14) is last still to be provided with voltage sword separation module (15), voltage sword separation module (15) include:
the motor is characterized in that the motor is fixedly arranged at the lower end of the variable-pitch substrate (11), a separation gear (152) is arranged on a conveying shaft of the separation motor (151), separation racks (153) meshed with the separation gear (152) are slidably arranged at the lower end of the variable-pitch substrate (11), two separation racks (153) are arranged in parallel and are respectively located at two sides of the separation gear (152), meanwhile, the separation racks (153) are parallel to the length direction of a battery cell, the two separation racks (153) are slidably connected with battery cell pressing cutters (14) at two sides through linkage plates (154), and the sliding directions of the battery cell pressing cutters (14) and the linkage plates (154) are perpendicular to the length direction of the battery cell.
4. The film laminating mechanism for an ultra-high speed lamination machine of claim 1, wherein: the film drawing driving assembly (22) is arranged at one side of the length direction of the battery cell, and the film drawing driving assembly (22) comprises:
a film-drawing mounting plate (221), wherein the film-drawing mounting plate (221) is connected with the frame;
a lifting driving source (222) is arranged on the outer side of one side of the film pulling mounting plate (221) along the vertical direction, a linear module (223) is arranged at the driving end of the lifting driving source (222), and the linear module (223) is arranged along the horizontal direction and is parallel to the length direction of the film.
5. The film laminating mechanism for an ultra-high speed lamination machine of claim 1, wherein: the film drawing module (2) further comprises a film drawing fixing assembly (24), and the film drawing fixing assembly (24) comprises:
the two film pulling fixing vertical plates (241) are vertically arranged, and the two film pulling fixing vertical plates (241) are symmetrically arranged on two sides of the film in the width direction respectively;
a film-drawing fixed transverse plate (242), wherein the film-drawing fixed transverse plate (242) is horizontally arranged between the two film-drawing fixed vertical plates (241), and the film-drawing fixed transverse plate (242) is parallel to the width direction of the film;
the film drawing movable transverse plate (243), two ends of the film drawing movable transverse plate (243) are respectively arranged on the film drawing fixed vertical plate (241) through a vertically arranged film drawing air cylinder (244), and the film drawing movable transverse plate (243) is parallel and positioned above the film drawing fixed transverse plate (242).
6. The film laminating mechanism for an ultra-high speed lamination machine of claim 1, wherein: the press-cutting driving assembly (31) includes: a pressing and cutting mounting plate (311) connected with the frame; and a pressing and cutting driving source (312) which is arranged on the pressing and cutting mounting plate (311) and is arranged vertically downwards.
7. The film laminating mechanism for an ultra-high speed lamination machine of claim 1, wherein: the film pressing assembly (33) comprises:
the film pressing plate (331) is arranged above the battery cell;
the film pressing connecting plates (332), wherein the two film pressing connecting plates (332) are respectively positioned at two sides of the film pressing plate (331);
a first limiting plate (333), wherein the first limiting plate (333) is arranged on the pressing and cutting seat (32);
the second limiting plate (334), second limiting plate (334) sets up on pressed film connecting plate (332), and second limiting plate (334) support and lean on the top of first limiting plate (333), and under the exogenic action, pressed film board (331) upwards removes and is located the top of diaphragm cutter (343) of cutting membrane subassembly (34).
8. The film laminating mechanism for an ultra-high speed lamination machine of claim 7, wherein: set up spring mounting hole (3321) on pressing membrane connecting plate (332), press and cut and set up spring limiting plate (337) on seat (32), set up buffer spring (338) between spring mounting hole (3321) and spring limiting plate (337), the upper end and the spring limiting plate (337) butt of buffer spring (338), just buffer spring (338) are down pressed all the time and are pressed membrane connecting plate (332).
CN202311571906.4A 2023-11-23 2023-11-23 Film covering mechanism for ultra-high speed lamination machine Active CN117276633B (en)

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Application Number Priority Date Filing Date Title
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CN117276633B true CN117276633B (en) 2024-02-27

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202170022U (en) * 2011-07-05 2012-03-21 深圳市吉阳自动化科技有限公司 Membrane coating equipment of electric core
CN114122526A (en) * 2022-01-29 2022-03-01 深圳市兴禾自动化股份有限公司 Battery cell film drawing, film cutting and laminating device
CN114171803A (en) * 2022-02-11 2022-03-11 深圳市兴禾自动化股份有限公司 Battery pole piece lamination platform
CN114229564A (en) * 2022-01-04 2022-03-25 深圳市兴禾自动化股份有限公司 Cell diaphragm unwinding process and diaphragm unwinding device thereof
CN216980658U (en) * 2022-01-29 2022-07-15 深圳市兴禾自动化股份有限公司 Battery cell film cutting and laminating platform and battery cell film drawing, slicing and laminating mechanism thereof
CN115036582A (en) * 2022-05-05 2022-09-09 深圳市兴禾自动化股份有限公司 Film laminating device and film laminating process for battery core
CN115911489A (en) * 2021-08-18 2023-04-04 深圳市兴禾自动化股份有限公司 A Z-type cyclic laminating and pulling film lamination machine and its lamination process
WO2023213304A1 (en) * 2022-05-05 2023-11-09 深圳市兴禾自动化股份有限公司 Battery cell manufacturing apparatus and manufacturing process thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202170022U (en) * 2011-07-05 2012-03-21 深圳市吉阳自动化科技有限公司 Membrane coating equipment of electric core
CN115911489A (en) * 2021-08-18 2023-04-04 深圳市兴禾自动化股份有限公司 A Z-type cyclic laminating and pulling film lamination machine and its lamination process
CN114229564A (en) * 2022-01-04 2022-03-25 深圳市兴禾自动化股份有限公司 Cell diaphragm unwinding process and diaphragm unwinding device thereof
CN114122526A (en) * 2022-01-29 2022-03-01 深圳市兴禾自动化股份有限公司 Battery cell film drawing, film cutting and laminating device
CN216980658U (en) * 2022-01-29 2022-07-15 深圳市兴禾自动化股份有限公司 Battery cell film cutting and laminating platform and battery cell film drawing, slicing and laminating mechanism thereof
CN114171803A (en) * 2022-02-11 2022-03-11 深圳市兴禾自动化股份有限公司 Battery pole piece lamination platform
CN115036582A (en) * 2022-05-05 2022-09-09 深圳市兴禾自动化股份有限公司 Film laminating device and film laminating process for battery core
WO2023213304A1 (en) * 2022-05-05 2023-11-09 深圳市兴禾自动化股份有限公司 Battery cell manufacturing apparatus and manufacturing process thereof

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