CN112452634B - Graphene battery negative plate preparation equipment and preparation method - Google Patents
Graphene battery negative plate preparation equipment and preparation method Download PDFInfo
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- CN112452634B CN112452634B CN202011374368.6A CN202011374368A CN112452634B CN 112452634 B CN112452634 B CN 112452634B CN 202011374368 A CN202011374368 A CN 202011374368A CN 112452634 B CN112452634 B CN 112452634B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/06—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length by rubbing contact, e.g. by brushes, by pads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/007—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0409—Methods of deposition of the material by a doctor blade method, slip-casting or roller coating
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1393—Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- 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
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Abstract
The invention discloses a graphene battery negative plate preparation device and a preparation method, wherein a brush head used for brushing negative slurry on a copper foil on a workbench is arranged at the lower part of a mounting piece in a swinging manner, a walking component is arranged below the top piece, and an injection component used for injecting the slurry into the brush head is also arranged on the mounting piece; a press-paving component for repeatedly rolling the cathode slurry brushed on the copper foil is also arranged below the top part, and the walking component is connected with the press-paving component; the walking assembly is driven to move along the horizontal direction through the pressing and spreading assembly, then the copper foil paved on the workbench is driven to walk, when the copper foil walks to the position below the brush head, a layer of negative electrode slurry is coated on the copper foil through the injection assembly which is matched with the swinging brush head to continuously work, the copper foil is dried through the heating disc after the negative electrode slurry is coated on the copper foil, then the pressing and spreading assembly is used for pressing the negative electrode slurry on the copper foil after preliminary drying, and therefore the preparation work of the graphene battery negative electrode piece is completed.
Description
Technical Field
The invention relates to the field of graphene battery processing equipment, in particular to equipment and a method for preparing a graphene battery negative plate.
Background
The cell is an important field for the earliest commercialization of graphene, the cost for manufacturing the transparent deformable solar cell can be greatly reduced by the graphene cell, and the cell is possibly applied to small-sized digital equipment such as night vision goggles, cameras and the like.
Production of a battery cathode sheet is a key point in graphene battery production, and a sulfuric acid solution, a nitric acid solution, a graphite raw material and solid potassium permanganate are required to be used for preparing graphene oxide; preparing a graphene oxide nano roll with a curled structure by using graphene oxide; finally obtaining cathode slurry; and coating the negative electrode slurry on copper foil, and drying, rolling and cutting to obtain the negative electrode sheet.
The existing graphene negative plate production needs to respectively coat and roll the graphene battery negative slurry on the copper foil by means of multiple devices, and multiple processes are utilized to finish processing one by one, so that the production efficiency is not high, and the industrial mass production is not facilitated.
Disclosure of Invention
Based on the defects in the prior art mentioned in the background art, the invention provides equipment and a method for preparing a graphene battery negative plate.
The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:
the graphene battery negative plate preparation equipment comprises a frame body and a workbench, wherein the frame body is horizontally and movably connected with the workbench through a clamping structure, an installation piece is vertically fixed on one side of the frame body, and a top piece is horizontally fixed on the installation piece;
the lower part of the mounting piece is provided with a brush head in a swinging manner, the brush head is used for brushing negative slurry on a copper foil on a workbench, a walking assembly used for driving the workbench to move horizontally is mounted below the top piece, and the mounting piece is also provided with an injection assembly used for injecting the slurry into the brush head;
the walking assembly is respectively connected with the injection assembly and the brush head, a pressing and paving assembly used for repeatedly pressing and paving negative electrode slurry brushed on the copper foil is further arranged below the top part, the walking assembly is connected with the pressing and paving assembly, the walking assembly is arranged between the pressing and paving assembly and the brush head, a heating disc used for drying the brushed negative electrode slurry is arranged below the walking assembly, and the heating disc is arranged on the frame body.
As a further scheme of the invention: the clamping structure comprises a clamping piece fixed on the frame body and a strip-shaped bulge arranged on the side wall of the workbench; the clamping piece is horizontally clamped between the strip-shaped bulges in a sliding manner, and a roller which is in rolling contact with the upper surface of the frame body is rotatably arranged at the rear part of the workbench.
As a still further scheme of the invention: the pressing and paving assembly is connected with a power structure arranged on the top part, and the power structure is connected with the walking assembly through a bevel gear set;
the power structure comprises a motor arranged on the top part and an output shaft vertically and rotatably arranged below the top part and connected with the output end of the motor; the output shaft passes through the top piece and is connected with the top piece through a bearing.
As a still further scheme of the invention: the walking assembly comprises a worm which is horizontally and rotatably arranged below the top part, a worm wheel which is rotatably arranged below the top part and is meshed with the worm, a gear which is arranged below the worm wheel, and a rack plate which is horizontally fixed on the side wall of the workbench and is meshed with the gear;
a hanging bracket is vertically fixed below the top part, the worm wheel and the gear are both rotatably installed on the hanging bracket, and the gear is connected with the worm wheel through a first transmission piece.
As a still further scheme of the invention: the upper part of the brush head is rotatably arranged on the mounting piece through a pin shaft, and the brush head is connected with the worm wheel through a swing rod;
one end of the swing rod is rotatably connected with the eccentric part of the worm wheel, and the other end of the swing rod is rotatably connected with the brush head; the bevel gear set comprises a first bevel gear fixed on the output shaft and a second bevel gear fixed at the end part of the worm and meshed with the first bevel gear.
As a still further scheme of the invention: the injection assembly comprises a pump barrel fixed on the mounting piece, a sealing plug hermetically and movably arranged in the pump barrel, a corrugated pipe used for communicating the pump barrel and the brush head, and a crank block structure used for connecting the sealing plug and the worm;
the lower part of the corrugated pipe is communicated with the upper part of the brush head, and a one-way valve is arranged at the joint of the corrugated pipe and the pump cylinder; and the side wall of the lower part of the pump barrel is communicated with a feeding pipe used for communicating the slurry barrel through another one-way valve.
As a still further scheme of the invention: the crank sliding block structure comprises a rotary disc, a connecting rod and a second transmission piece, wherein the rotary disc is rotatably arranged above the pump barrel, the connecting rod is used for connecting the rotary disc and the sealing plug, and the second transmission piece is used for connecting the rotary disc and the worm;
one end of the connecting rod is rotatably connected with the edge of the rotary disc, and the other end of the connecting rod is rotatably connected with the sealing plug; and the upper part of the pump barrel is provided with a through groove for the connecting rod to pass through.
As a still further scheme of the invention: the pressing and paving assembly comprises a moving part connected with the output shaft through an eccentric structure, a pressing roller vertically installed below the moving part through a telescopic structure, and a guide rod horizontally fixed below the top part and connected with the moving part in a sliding manner;
two vertical frames are fixed below the top part, and the guide rod is horizontally fixed between the two vertical frames.
As a still further scheme of the invention: the eccentric structure comprises an eccentric wheel fixed at the lower end of the output shaft, a convex column fixed at the eccentric position of the lower part of the eccentric wheel and an embedded groove fixed on the moving piece and embedded with the convex column in a sliding manner;
the telescopic structure comprises a sleeve seat vertically fixed to the lower portion of the moving part, a vertical sleeve is arranged on the telescopic part below the sleeve seat and is used for elastic connection with the telescopic part and a pressure spring of the sleeve seat, and the pressure roller is rotatably installed on the lower portion of the telescopic part.
A method for preparing a graphene battery negative plate by using the graphene battery negative plate preparation equipment in the embodiment comprises the following steps:
step one, copper foil laying, namely cutting the copper foil to be processed into a specified width according to size labels and fixedly laying the copper foil on a workbench, wherein as a preferred scheme, the back surface of the copper foil can be bonded and fixed on the workbench by using a colloid;
secondly, communicating pipelines, communicating a feeding pipe on the side wall of the lower part of the pump barrel with a slurry barrel, checking whether the brush head is blocked or not, moving the workbench to a terminal point at one side far away from the brush head, and starting a heating disc in advance;
starting preparation, namely starting a motor after the heating disc reaches the drying temperature, brushing slurry on the copper foil on the workbench through a brush head, and paving and compacting the slurry after the heating disc is preliminarily dried through a compression roller;
step four, contraposition exchange, namely after a layer of slurry is uniformly coated on the copper foil, exchanging the position of the copper foil after the slurry dissipates waste heat, and fixing the copper foil on a workbench again, and repeating the steps for secondary coating;
and fifthly, unloading and drying, after the secondary coating is finished, putting the copper foil coated with the slurry into drying equipment for final drying, and cutting into standard graphene battery negative plates with specified length and size for packaging and standby.
After adopting the structure, compared with the prior art, the invention has the following advantages: the walking assembly is driven to move along the horizontal direction through the pressing and spreading assembly, and then the copper foil paved on the workbench is driven to walk, when the copper foil walks to the position below the brush head, a layer of negative electrode slurry is coated on the copper foil through the injection assembly which is matched with the swinging brush head to continuously work, the copper foil is dried through the heating disc after the negative electrode slurry is coated on the copper foil, and then the pressing and spreading assembly is used for pressing and pressing the negative electrode slurry on the copper foil after preliminary drying, so that the preparation work of the graphene battery negative electrode piece is completed, the preparation work is completely completed through mechanical driving, the automation degree is high, the production efficiency is greatly improved, and the device is widely suitable for large-scale production of the graphene battery negative electrode piece.
Drawings
Fig. 1 is a schematic structural diagram of graphene battery negative plate preparation equipment.
Fig. 2 is a schematic structural diagram of an embedding groove and a moving member in graphene battery negative plate preparation equipment.
Fig. 3 is a schematic structural diagram of a workbench, strip-shaped protrusions and rollers in the graphene battery negative plate preparation device.
Fig. 4 is a partially enlarged view of a portion a in fig. 1.
In the figure: 1-a frame body; 2-a snap-fit member; 3-a workbench; 4-strip-shaped bulges; 5-a roller; 6-mounting parts; 7-a top piece; 8-a motor; 9-an output shaft; 10-bevel gear; 11-second bevel gear; 12-a worm; 13-a worm gear; 14-a hanger; 15-a first transmission member; 16-gear; 17-a rack plate; 18-a swing link; 19-a brush head; 20-a second transmission member; 21-a turntable; 22-a connecting rod; 23-a pump cylinder; 24-a sealing plug; 25-a one-way valve; 26-a bellows; 27-eccentric wheel; 28-convex column; 29-a fitting groove; 30-a movable member; 31-a guide rod; 32-a socket; 33-a telescopic member; 34-a pressure spring; 35-press rolls.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1 to 4, in an embodiment of the present invention, a graphene battery negative electrode sheet preparation apparatus includes a frame body 1 and a workbench 3, wherein the frame body 1 is horizontally and movably connected to the workbench 3 through a clamping structure, an installation part 6 is vertically fixed on one side of the frame body 1, and a top part 7 is horizontally fixed on the installation part 6; furthermore, a brush head 19 for brushing negative slurry on a copper foil on the workbench 3 is arranged at the lower part of the mounting piece 6 in a swinging manner, a walking component for driving the workbench 3 to move horizontally is arranged below the top piece 7, and an injection component for injecting the slurry into the brush head 19 is also arranged on the mounting piece 6; still further, the walking assembly is respectively connected with the injection assembly and the brush head 19, a press-paving assembly for repeatedly rolling the cathode slurry coated on the copper foil is further arranged below the top part 7, the walking assembly is connected with the press-paving assembly, the walking assembly is arranged between the press-paving assembly and the brush head 19, a heating disc for drying the coated cathode slurry is arranged below the walking assembly, and the heating disc is mounted on the frame body 1;
the walking assembly is driven to move along the horizontal direction through the pressing and spreading assembly, and then the copper foil laid on the workbench 3 is driven to walk, when the copper foil walks to the position below the brush head 19, a layer of negative electrode slurry is coated on the copper foil by utilizing the swinging brush head 19 to cooperate with the injection assembly which continuously works, the copper foil is dried through the heating disc after the negative electrode slurry is coated on the copper foil, and then the pressing and spreading assembly is used for pressing and pressing the negative electrode slurry on the copper foil after preliminary drying, so that the preparation work of the graphene battery negative electrode piece is completed, the preparation work is completely completed by mechanical driving, the automation degree is high, the production efficiency is greatly improved, and the device is widely suitable for large-scale production of the graphene battery negative electrode piece.
In one embodiment of the present invention, the clamping structure comprises a clamping member 2 fixed on the frame body 1 and a strip-shaped protrusion 4 arranged on the side wall of the workbench 3; the clamping piece 2 is horizontally clamped with the strip-shaped bulges 4 in a sliding manner, and a roller 5 which is in rolling contact with the upper surface of the frame body 1 is rotatably arranged at the rear part of the workbench 3;
utilize the block structure to retrain the relative position of workstation 3 and support body 1 for workstation 3 can only be along support body 1 horizontal migration, and can not take place longitudinal deviation, guarantees to apply paint, roll-in and accomplish on a horizontal plane.
In another embodiment of the invention, the press-laying assembly is connected to a power structure mounted on the top part 7, the power structure being connected to the walking assembly through a bevel gear set;
the power structure comprises a motor 8 arranged on the top part 7 and an output shaft 9 vertically and rotatably arranged below the top part 7 and connected with the output end of the motor 8; the output shaft 9 penetrates through the top part 7 and is connected with the top part through a bearing;
when the motor 8 is powered on to work, the output shaft 9 is driven to rotate, the rotating output shaft 9 drives the traveling assembly to work by utilizing the bevel gear set, and therefore the workbench 3 is driven to move relative to the frame body 1 along the horizontal direction.
In still another embodiment of the present invention, the walking assembly comprises a worm gear 12 horizontally rotatably mounted below the top member 7, a worm wheel 13 rotatably mounted below the top member 7 and engaged with the worm gear 12, a gear 16 disposed below the worm wheel 13, and a rack plate 17 horizontally fixed on a side wall of the table 3 and engaged with the gear 16;
a hanging bracket 14 is vertically fixed below the top part 7, the worm wheel 13 and the gear 16 are both rotatably mounted on the hanging bracket 14, and the gear 16 is connected with the worm wheel 13 through a first transmission piece 15;
the worm 12 is driven to rotate by the bevel gear set, the worm wheel 13 is driven to rotate by the rotating worm 12, the gear 16 is driven to rotate by the worm wheel 13 matched with the first transmission piece 15, and the whole workbench 3 is driven to move along the horizontal direction by the rotating gear 16 matched with the rack plate 17.
In another embodiment of the invention, the upper part of the brush head 19 is rotatably mounted on the mounting part 6 through a pin shaft, and the brush head 19 is connected with the worm wheel 13 through a swing rod 18;
one end of the swing rod 18 is rotatably connected with the eccentric part of the worm wheel 13, and the other end of the swing rod is rotatably connected with the brush head 19; the bevel gear set comprises a first bevel gear 10 fixed on the output shaft 9 and a second bevel gear 11 fixed at the end of the worm 12 and meshed with the first bevel gear 10;
when the output shaft 9 rotates, the first bevel gear 10 is driven to rotate, the rotating first bevel gear 10 drives the second bevel gear 11 to rotate, the worm 12 is driven to rotate, the worm 12 drives the worm wheel 13 to rotate, and the swing rod 18 drives the brush head 19 to swing back and forth to brush the copper foil on the workbench 3.
In a further embodiment of the present invention, the injection assembly comprises a pump cylinder 23 fixed on the mounting member 6, a sealing plug 24 sealingly movably arranged in the pump cylinder 23, a bellows 26 for communicating the pump cylinder 23 with the brush head 19, and a crank-slider structure connecting the sealing plug 24 with the worm 12;
the lower part of the corrugated pipe 26 is communicated with the upper part of the brush head 19, and a one-way valve 25 is arranged at the joint of the corrugated pipe 26 and the pump cylinder 23; a feeding pipe for communicating a slurry barrel is communicated with the side wall of the lower part of the pump barrel 23 through another one-way valve 25;
when the worm 12 rotates, the crank block structure is driven to act, the crank block assembly drives the sealing plug 24 to slide up and down in a sealing manner along the inner wall of the pump barrel 23 in a reciprocating manner, slurry in the charging basket is sent into the pump barrel 23 by matching with the two one-way valves 25, and then is sent into the brush head 19 through the corrugated pipe 26 to supply materials for the brush head 19.
In a further embodiment of the invention, the crank-slider structure comprises a rotary disc 21 rotatably arranged above the pump barrel 23, a connecting rod 22 for connecting the rotary disc 21 with the sealing plug 24, and a second transmission 20 for connecting the rotary disc 21 with the worm 12;
one end of the connecting rod 22 is rotatably connected with the edge of the rotating disc 21, and the other end of the connecting rod is rotatably connected with the sealing plug 24; a through groove for the connecting rod 22 to pass through is formed in the upper part of the pump cylinder 23;
when the worm 12 rotates, the second transmission member 20 drives the rotary table 21 to rotate, and the rotary table 21 drives the sealing plug 24 to reciprocate up and down along the inner wall of the pump barrel 23 by means of the connecting rod 22, so that the function of pumping the cathode slurry is realized.
In a further embodiment of the present invention, the press-laying assembly comprises a movable member 30 connected to the output shaft 9 through an eccentric structure, a press roller 35 vertically installed below the movable member 30 through a telescopic structure, and a guide rod 31 horizontally fixed below the top member 7 and slidably connected to the movable member 30;
two vertical frames are fixed below the top part 7, and the guide rod 31 is horizontally fixed between the two vertical frames;
the output shaft 9 rotates to drive the eccentric structure to drive the movable piece 30 to horizontally move back and forth along the guide rod 31, and further drive the compression roller 35 at the lower part of the movable piece 30 to horizontally move back and forth to perform compression roller paving on the preliminarily dried slurry; the compression roller 35 is connected with the copper foil in a non-rigid mode through the telescopic structure, and the copper foil is protected from being damaged.
In a further embodiment of the present invention, the eccentric structure includes an eccentric wheel 27 fixed to a lower end of the output shaft 9, a boss 28 fixed to a lower portion of the eccentric wheel 27 at an eccentric position, and a fitting groove 29 fixed to the movable member 30 and slidably fitted with the boss 28;
the telescopic structure comprises a sleeve seat 32 vertically fixed at the lower part of the moving part 30, a telescopic part 33 vertically sleeved at the lower part of the sleeve seat 32, and a pressure spring 34 for elastically connecting the telescopic part 33 and the sleeve seat 32, wherein the pressure roller 35 is rotatably installed at the lower part of the telescopic part 33;
when the output shaft 9 rotates, the eccentric wheel 27 is driven to rotate, and then the convex column 28 is driven to do circular motion, and the convex column 28 in the circular motion drives the embedded groove 29 and the movable piece 30 to do reciprocating horizontal movement along the guide rod 31; and the elastic connection between the telescopic part 33 and the sleeve seat 32 is realized by utilizing the pressure spring 34, so that the compression roller 35 is flexibly connected with the copper foil, pressure can be provided for slurry on the copper foil, and the copper foil cannot be damaged.
In another embodiment of the present invention, a method for preparing a graphene battery negative electrode sheet by using the graphene battery negative electrode sheet preparation apparatus in the above embodiment includes the following steps:
step one, copper foil laying, namely cutting the copper foil to be processed into a specified width according to size labels and fixedly laying the copper foil on a workbench, wherein as a preferred scheme, the back surface of the copper foil can be bonded and fixed on the workbench by using a colloid;
secondly, communicating pipelines, communicating a feeding pipe on the side wall of the lower part of the pump barrel with a slurry barrel, checking whether the brush head is blocked or not, moving the workbench to a terminal point at one side far away from the brush head, and starting a heating disc in advance;
starting preparation, namely starting a motor after the heating disc reaches the drying temperature, brushing slurry on the copper foil on the workbench through a brush head, and paving and compacting the slurry after the heating disc is preliminarily dried through a compression roller;
step four, contraposition exchange, namely after a layer of slurry is uniformly coated on the copper foil, exchanging the position of the copper foil after the slurry dissipates waste heat, and fixing the copper foil on a workbench again, and repeating the steps for secondary coating;
and fifthly, unloading and drying, after the secondary coating is finished, putting the copper foil coated with the slurry into drying equipment for final drying, and cutting into standard graphene battery negative plates with specified length and size for packaging and standby.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Claims (2)
1. The graphene battery negative plate preparation equipment comprises a frame body (1) and a workbench (3), and is characterized in that the frame body (1) is horizontally and movably connected with the workbench (3) through a clamping structure, an installation part (6) is vertically fixed on one side of the frame body (1), and a top part (7) is horizontally fixed on the installation part (6);
the lower part of the mounting piece (6) is provided with a brush head (19) which is used for brushing negative slurry on a copper foil on a workbench (3) in a swinging mode, a walking assembly which is used for driving the workbench (3) to move horizontally is installed below the top piece (7), and the mounting piece (6) is also provided with an injection assembly which is used for injecting the slurry into the brush head (19);
the walking component is respectively connected with the injection component and the brush head (19), a pressing and paving component used for repeatedly rolling negative electrode slurry brushed on a copper foil is further arranged below the top part (7), the walking component is connected with the pressing and paving component, the walking component is arranged between the pressing and paving component and the brush head (19), a heating disc used for drying the brushed negative electrode slurry is arranged below the walking component, and the heating disc is installed on the frame body (1);
the clamping structure comprises a clamping piece (2) fixed on the frame body (1) and a strip-shaped bulge (4) arranged on the side wall of the workbench (3); the clamping piece (2) is horizontally clamped with the strip-shaped bulges (4) in a sliding manner, and a roller (5) which is in rolling contact with the upper surface of the frame body (1) is rotatably arranged at the rear part of the workbench (3);
the pressing and paving assembly is connected with a power structure arranged on the top part (7), and the power structure is connected with the walking assembly through a bevel gear set; the power structure comprises a motor (8) arranged on the top part (7) and an output shaft (9) which is vertically and rotatably arranged below the top part (7) and is connected with the output end of the motor (8); the output shaft (9) penetrates through the top part (7) and is connected with the top part through a bearing;
the walking assembly comprises a worm (12) horizontally and rotatably mounted below the top part (7), a worm wheel (13) rotatably mounted below the top part (7) and meshed with the worm (12), a gear (16) arranged below the worm wheel (13), and a rack plate (17) horizontally fixed on the side wall of the workbench (3) and meshed with the gear (16); a hanging bracket (14) is vertically fixed below the top part (7), the worm wheel (13) and the gear (16) are both rotatably installed on the hanging bracket (14), and the gear (16) is connected with the worm wheel (13) through a first transmission piece (15);
the upper part of the brush head (19) is rotatably arranged on the mounting part (6) through a pin shaft, and the brush head (19) is connected with the worm wheel (13) through a swing rod (18); one end of the swing rod (18) is rotatably connected with the eccentric part of the worm wheel (13), and the other end of the swing rod is rotatably connected with the brush head (19); the bevel gear set comprises a first bevel gear (10) fixed on the output shaft (9) and a second bevel gear (11) fixed at the end of the worm (12) and meshed with the first bevel gear (10);
the injection assembly comprises a pump cylinder (23) fixed on the mounting piece (6), a sealing plug (24) arranged in the pump cylinder (23) in a sealing and movable mode, a corrugated pipe (26) used for communicating the pump cylinder (23) with the brush head (19), and a crank slider structure used for connecting the sealing plug (24) with the worm (12); the lower part of the corrugated pipe (26) is communicated with the upper part of the brush head (19), and a one-way valve (25) is arranged at the joint of the corrugated pipe (26) and the pump cylinder (23); the side wall of the lower part of the pump barrel (23) is communicated with a feeding pipe used for communicating a slurry barrel through another one-way valve (25);
the crank slider structure comprises a rotary disc (21) rotatably arranged above the pump barrel (23), a connecting rod (22) used for connecting the rotary disc (21) with the sealing plug (24), and a second transmission piece (20) used for connecting the rotary disc (21) with the worm (12); one end of the connecting rod (22) is rotatably connected with the edge of the rotating disc (21), and the other end of the connecting rod is rotatably connected with the sealing plug (24); a through groove for the connecting rod (22) to pass through is formed in the upper part of the pump cylinder (23);
the pressing and paving assembly comprises a moving part (30) connected with the output shaft (9) through an eccentric structure, a pressing roller (35) vertically installed below the moving part (30) through a telescopic structure, and a guide rod (31) horizontally fixed below the top part (7) and connected with the moving part (30) in a sliding manner; two vertical frames are fixed below the top part (7), and the guide rod (31) is horizontally fixed between the two vertical frames;
the eccentric structure comprises an eccentric wheel (27) fixed at the lower end of the output shaft (9), a convex column (28) fixed at the eccentric position of the lower part of the eccentric wheel (27), and a tabling groove (29) fixed on the moving piece (30) and slidably tabling with the convex column (28); extending structure includes that vertical fixing is in cover seat (32), the vertical cover of moving part (30) lower part are established extensible member (33) of cover seat (32) lower part and be used for elastic connection extensible member (33) with pressure spring (34) of cover seat (32), compression roller (35) rotate to be installed the lower part of extensible member (33).
2. The method for preparing the graphene battery negative plate by using the graphene battery negative plate preparation equipment according to claim 1, is characterized by comprising the following steps of:
step one, copper foil laying, namely cutting the copper foil to be processed into a specified width according to size labels and fixedly laying the copper foil on a workbench, wherein the back of the copper foil is bonded and fixed on the workbench by using a colloid;
secondly, communicating pipelines, communicating a feeding pipe on the side wall of the lower part of the pump barrel with a slurry barrel, checking whether the brush head is blocked or not, moving the workbench to a terminal point at one side far away from the brush head, and starting a heating disc in advance;
starting preparation, namely starting a motor after the heating disc reaches the drying temperature, brushing slurry on the copper foil on the workbench through a brush head, and paving and compacting the slurry after the heating disc is preliminarily dried through a compression roller;
step four, contraposition exchange, namely after a layer of slurry is uniformly coated on the copper foil, exchanging the position of the copper foil after the slurry dissipates waste heat, and fixing the copper foil on a workbench again, and repeating the steps for secondary coating;
and fifthly, unloading and drying, after the secondary coating is finished, putting the copper foil coated with the slurry into drying equipment for final drying, and cutting into standard graphene battery negative plates with specified length and size for packaging and standby.
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| CN113309947B (en) * | 2021-05-27 | 2023-07-07 | 湖南华力电气技术有限公司 | Lifting structure and intelligent face recognition device for security protection |
| CN113245147B (en) * | 2021-06-08 | 2022-02-08 | 佛山科学技术学院 | Brush mucilage binding is put suitable for industrial robot |
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