CN115321833A - Preparation method of graphene conductive film - Google Patents
Preparation method of graphene conductive film Download PDFInfo
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- CN115321833A CN115321833A CN202211064126.6A CN202211064126A CN115321833A CN 115321833 A CN115321833 A CN 115321833A CN 202211064126 A CN202211064126 A CN 202211064126A CN 115321833 A CN115321833 A CN 115321833A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 84
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 239000011248 coating agent Substances 0.000 claims abstract description 103
- 238000000576 coating method Methods 0.000 claims abstract description 103
- 239000011521 glass Substances 0.000 claims abstract description 74
- 238000012545 processing Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000007599 discharging Methods 0.000 claims description 71
- 238000005498 polishing Methods 0.000 claims description 15
- 210000001503 joint Anatomy 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 description 14
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002041 carbon nanotube Substances 0.000 description 2
- 229910021393 carbon nanotube Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012840 feeding operation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000012369 In process control Methods 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 graphite alkene Chemical class 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
-
- 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
- B05D2203/00—Other substrates
- B05D2203/30—Other inorganic substrates, e.g. ceramics, silicon
- B05D2203/35—Glass
Abstract
The invention discloses a preparation method of a graphene conductive film. In the preparation method of the graphene conductive film, the graphene conductive film processing equipment is adopted for preparing the graphene conductive film, the coating solution is output to the blanking groove through the blanking hopper with a smaller outlet, and then the blanking groove is matched with the blanking groove to uniformly coat the coating solution to the surface of the glass plate through the blanking groove with a larger outlet size in the moving process relative to the glass plate, so that the problem of uneven coating caused by poor flowability of the coating solution is avoided, the coating effect is improved, and the quality of the prepared graphene conductive film is ensured.
Description
Technical Field
The invention belongs to the technical field of graphene conductive films, and particularly relates to a preparation method of a graphene conductive film.
Background
As the transparent conductive film commonly used in the prior art is mainly a metal film and a metal oxide film. Among metal oxides, indium Tin Oxide (ITO) is widely used, has good optical and electrical properties, and is well-developed in the current preparation technology. However, the price of ito is high due to rare raw materials, and the ito transparent conductive film cannot be bent, which limits the application range and future property of the ito transparent conductive film. Monolayer graphite, also called Graphene (Graphene), is a two-dimensional honeycomb lattice structure formed by close packing of monolayer carbon atoms by graphite bonds (sp 2), is the thinnest and most hard material in the world at present, has a thermal conductivity higher than that of carbon nanotubes and diamond, has an electron mobility higher than that of carbon nanotubes or silicon crystal at normal temperature, has a resistivity lower than that of copper or silver, is the material with the lowest resistivity in the world at present, and has a thickness of only one carbon atom while allowing Graphene to have excellent light transmittance, thus having great potential in application of transparent conductive films.
However, the graphene conductive film in the prior art still has the following problems in preparation:
1. when the graphene conductive film is prepared, the prepared coating solution needs to be uniformly coated on a dry glass plate, and due to poor fluidity of the coating solution, the phenomenon of nonuniform coating is easily caused during coating, so that the subsequent preparation of the graphene conductive film is influenced;
2. when the graphene conductive film is prepared, the coating solution is coated, and then grains are inevitably generated, so that the production of the graphene conductive film is influenced.
Disclosure of Invention
In view of the above problems, the present invention discloses a method for preparing a graphene conductive film, so as to overcome the above problems or at least partially solve the above problems.
According to the preparation method of the graphene conductive film, graphene conductive film processing equipment is adopted to carry out preparation operation of the graphene conductive film, and the graphene conductive film processing equipment comprises a support, a blanking groove, a blanking hopper and a blanking screw; the support is used for flatly laying glass plates in the horizontal direction, the blanking groove is positioned above the glass plates and is in sliding connection with the support in the horizontal direction, the blanking hopper is positioned above the blanking groove and is in sliding connection with the blanking groove, the outlet of the blanking hopper is communicated with the inlet of the blanking groove, and the blanking screw is positioned in the blanking hopper and extends to the outlet of the blanking hopper;
the preparation method of the graphene conductive film specifically comprises the following steps:
step S1, feeding: putting the coating solution into the discharging hopper, and flatly laying the glass plate on the bracket along the horizontal direction;
step S2, feeding the coating solution into a tank: controlling the blanking hopper to move along the blanking groove, controlling the blanking screw rod to rotate, and continuously and uniformly injecting the coating solution in the blanking hopper into the blanking groove;
step S3, coating: controlling the blanking groove to move relative to the bracket, discharging the coating solution in the blanking groove and coating the coating solution on the glass plate;
and S5, resetting: the blanking groove moves relative to the support to a position where the whole glass plate is coated with the coating solution, and then the blanking groove is controlled to move reversely relative to the support to an initial position;
step S6, blanking: and taking the glass plate coated with the coating solution from the support, and performing subsequent processes to complete the preparation of the graphene conductive film.
Preferably, the graphene conductive film processing equipment comprises a first motor, a first gear and a first rack; the first motor is arranged on the discharging hopper, the output shaft of the first motor is sleeved and fixed with the first gear, the first rack is fixed on the discharging groove, and the first gear is meshed and connected with the first rack.
Preferably, the graphene conductive film processing equipment comprises a first turntable, a first pawl and a first elastic piece; the inner circumferential surface of the first gear is provided with a first ratchet, the first rotary disc is coaxially and fixedly connected with the blanking screw and is positioned inside the first gear, the outer circumferential surface of the first rotary disc is provided with a first pawl, the first elastic piece is positioned between the first pawl and the first rotary disc, and the first pawl is in one-way meshed connection with the first ratchet.
Preferably, the graphene conductive film processing equipment comprises a baffle, a sliding block and a second elastic piece; the sliding block is connected with the blanking groove in a sliding mode, and a first guide groove is formed in the sliding block; one end of the baffle is in sliding connection with the outlet of the blanking groove, the other end of the baffle is provided with a first guide pin, and the first guide pin is in sliding connection with the first guide groove and can drive the baffle to reciprocate relative to the outlet of the blanking groove so as to control the opening and closing of the outlet of the blanking groove; the second elastic piece is positioned between the discharging groove and the sliding block so as to drive the sliding block to move to a position where the first guide groove drives the baffle to move to close the outlet of the discharging groove; when the blanking hopper moves to the terminal position of the blanking groove, the blanking hopper can be in contact with the sliding block and overcome the second elastic piece to drive the sliding block to move together, so that the baffle plate moves to a position for opening the outlet of the blanking groove.
Preferably, the graphene conductive film processing equipment comprises a piston; the piston is connected with the discharging groove in a sliding mode and can stretch into the discharging groove to push out the coating solution in the discharging groove to the glass plate.
Preferably, the graphene conductive film processing equipment comprises a first telescopic rod, a second rack, a second gear, a second turntable, a pulley, a second pawl, a third elastic piece and a pull rope; a second guide groove is formed in the blanking groove, the second guide groove is L-shaped, one end of the second guide groove is arranged in the vertical direction, and the other end of the second guide groove is arranged in the horizontal direction; one end of the piston is arranged along the vertical direction and can be inserted into the blanking groove, the other end of the piston is provided with a second rack along the vertical direction, a second guide pin is arranged between the two ends of the piston, and the second guide pin is connected in the second guide groove in a sliding manner; one end of the first telescopic rod is rotatably connected with the blanking groove, the other end of the first telescopic rod is rotatably connected with the piston, the second gear is rotatably connected with the blanking groove and can be meshed with the second rack, a second ratchet is arranged on the inner circumference of the second gear, the second rotary disc is positioned inside the second gear, a second pawl is arranged on the outer circumference of the second rotary disc, the third elastic piece is positioned between the second pawl and the second rotary disc, and the second pawl is meshed with the second ratchet in a one-way mode; the pulley is coaxially and fixedly connected with the second turntable, one end of the pull rope is wound on the pulley, and the other end of the pull rope is connected with the bracket;
the first telescopic rod can drive a second guide pin of the piston to move in the horizontal direction along the second guide groove to move the piston to the discharging groove, and move downwards in the vertical direction along the second guide groove to insert the piston into the discharging groove and push coating solution to be discharged, meanwhile, the second rack is meshed with the second gear, the second turntable is driven to rotate through the second gear and the second pawl, the pulley is further driven to wind the pull rope, and the discharging groove is driven to move relative to the glass plate.
Preferably, the graphene conductive film processing equipment comprises a second telescopic rod; the second telescopic link sets up along the horizontal direction, one end with support fixed connection, the other end can stretch out to with the silo contact of unloading, in order to drive the silo of unloading carries out reverse reset and removes.
Preferably, the graphene conductive film processing equipment comprises a second motor and a polishing disc; the second motor is arranged on the discharging hopper, and the polishing disc is positioned above the glass plate and is connected with an output shaft of the second motor;
the preparation method of the graphene conductive film further comprises the following steps of S4, removing the lines: and after the coating solution in the discharging groove is discharged in the step S3, controlling the discharging hopper to move to the reset position relative to the discharging groove, and simultaneously controlling the second motor to rotate to drive the polishing disc to polish and remove the lines of the coating solution coated on the glass plate.
Preferably, the first motor and the second motor are the same motor and comprise two output shafts, one output shaft is connected with the first gear, and the other output shaft is connected with the grinding disc.
Preferably, the graphene conductive film processing equipment comprises a conveyor belt; the conveyer belt with the leg joint for along the tiling of horizontal direction place the glass board.
The preparation method of the graphene conductive film has the following beneficial technical effects:
1. according to the preparation method of the graphene conductive film, the blanking hopper with the smaller outlet is arranged, the coating solution is firstly output to the blanking groove by utilizing the movement of the blanking hopper relative to the blanking groove, and then the coating solution is uniformly coated on the surface of the glass plate by the blanking groove with the larger outlet in cooperation with the movement of the blanking groove relative to the glass plate, so that the problem of uneven coating caused by poor flowability of the coating solution is solved, the coating effect is improved, and the quality of the prepared graphene conductive film is ensured.
2. According to the preparation method of the graphene conductive film, the rack is arranged on the blanking groove, and the pawl and the ratchet are arranged between the first gear and the first rotating disc, so that the blanking screw rod can be driven by the first motor to rotate in a single direction, and in the process that the blanking hopper is driven by the first motor to move back and forth relative to the blanking groove, the intermittent blanking operation of driving the coating solution by the blanking screw rod is not influenced, the output uniformity of the coating solution is further ensured, and the coating quality is improved.
3. According to the preparation method of the graphene conductive film, the sliding block is arranged at the end part of the blanking groove, the second elastic piece is arranged between the blanking groove and the sliding block, when the blanking hopper moves to the end part of the blanking groove, the sliding block is driven to overcome the movement of the second elastic piece and the reverse movement of the sliding block driven by the second elastic piece, the reciprocating movement of the baffle plate relative to the outlet of the blanking groove can be controlled directly by means of the first guide groove and the first guide pin, the opening and closing control of the outlet of the blanking groove is realized without a redundant control structure, and the convenience of control is realized.
4. According to the preparation method of the graphene conductive film, the first telescopic rod is used for controlling the piston to reciprocate along the second guide groove, so that the piston is driven to output the coating solution to the glass plate, and the movement of the blanking groove relative to the glass plate can be controlled at the same time, so that the uniform coating operation of the whole glass plate is achieved, the structural design is simplified, and the convenience of operation and control is improved.
5. According to the preparation method of the graphene conductive film, the pawl and the ratchet are arranged between the second gear and the second rotary table, so that the blanking groove is correspondingly moved and stopped relative to the glass plate in the process of intermittent coating of the glass plate by reciprocating the first telescopic rod to drive the piston, and the uniform coating operation of the whole glass plate is realized.
6. According to the preparation method of the graphene conductive film, the polishing disc driven by the motor is arranged, so that the surface of the coating solution can be polished by the polishing disc after coating is finished, the grains on the surface of the coating solution are eliminated, and the quality of the graphene conductive film is further improved.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of the graphene conductive film processing apparatus in this embodiment;
FIG. 2 is an enlarged view of a portion of the structure at I in FIG. 1;
FIG. 3 isbase:Sub>A schematic view of the structure of FIG. 1 taken along the direction A-A;
fig. 4 is a schematic view of an internal cross-sectional structure of a discharging hopper in the graphene conductive film processing apparatus according to the embodiment;
fig. 5 is a schematic view of the structure of fig. 4 along the direction B-B.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and embodiments.
With reference to fig. 1 to 5, the present embodiment discloses a graphene conductive film processing apparatus for preparing a graphene conductive film, including a support 1, a feeding chute 2, a feeding hopper 3, and a feeding screw 4. The support 1 is placed on the ground for flatly placing the glass plates 5 in the horizontal direction, the length direction of the glass plates 5 is along the left-right direction shown in the figure 1, the blanking groove 2 is positioned above the glass plates 5 and is in sliding connection with the support 1 along the left-right direction shown in the figure 1, namely, the length direction of the glass plates 5 is in sliding connection, the blanking hopper 3 is positioned above the blanking groove 2 and is in sliding connection with the blanking groove 2, namely, the blanking hopper 3 is in sliding connection along the width direction of the glass plates 5, the blanking hopper 3 adopts a closed structure design with a smaller outlet, the outlet of the blanking hopper 3 is communicated with the inlet of the blanking groove 2, and the blanking screw 4 is positioned in the blanking hopper 3 and extends to the outlet position of the blanking hopper 3 and is used for uniformly and continuously conveying the coating solution in the blanking hopper 3 to the outlet position of the blanking hopper 3.
When the graphene conductive film processing equipment of this embodiment is adopted to carry out graphene conductive film preparation operation, at first, with the glass board tiling on the support, and put into down the hopper coating solution, then, the hopper removes for the feed chute under control unloading screw pivoted in-process control, evenly pour into the feed chute in the coating solution in the hopper down, then, the control is moved along the length direction of glass board down the hopper, discharge the coating solution in the feed chute down to the glass board and even coating on the glass board, accomplish the coating operation.
In the embodiment, the width of the discharging groove corresponds to the width of the glass plate, so that the coating solution can be uniformly coated on the surface of the glass plate in the process of controlling the discharging groove to move along the length direction of the glass plate. In addition, when the length of the glass plate is large, namely the coating solution contained in the blanking groove can not finish the coating operation on the whole surface of the glass plate at one time, after the discharging of the coating solution in the blanking groove is finished, the movement of the blanking groove is suspended, the blanking hopper is controlled to move relative to the blanking groove again, the blanking screw is controlled to rotate, the coating solution is injected into the blanking groove again, and then the coating operation is continued on the glass plate.
With reference to fig. 1 and 4, in the graphene conductive film processing apparatus of the present embodiment, a first motor 6, a first gear 7 and a first rack 8 are further provided. First motor 6 is fixed to be set up on hopper 3 down, and the output shaft of fixing at first motor 6 is established to first gear 7 cover, and first rack 8 is fixed on silo 2 down along the width direction of glass sheet 5, and first gear 7 is connected with the meshing of first rack 8.
At this time, the engagement connection between the first gear and the first rack can be utilized to drive the discharging hopper to reciprocate relative to the discharging groove by controlling the rotation of the first motor, so that the coating solution in the discharging hopper can be uniformly injected into the discharging groove.
Further, in the graphene conductive film processing apparatus of the embodiment, the graphene conductive film processing apparatus further includes a first rotating disk 9, a first pawl 10 and a first elastic member 11, a first ratchet 12 is disposed on an inner circumferential surface of the first gear 7, the first rotating disk 9 and one end of the discharging screw 4, which extends out of the discharging hopper 3, are coaxially and fixedly connected and are located inside the first gear 7, the first pawl 10 is disposed on an outer circumferential surface of the first rotating disk 9, and the first elastic member 11 is in a spring sheet structure and is located between the first pawl 10 and the first rotating disk 9, so that the first pawl 10 and the first ratchet 12 are in one-way meshing connection.
At the moment, when the first motor rotates forwards, the first gear and the first rack drive the blanking hopper to move relative to the blanking groove, and meanwhile, the first pawl and the first ratchet are meshed and connected to drive the blanking screw rod to rotate, so that the coating solution in the blanking hopper is uniformly injected into the blanking groove; on the contrary, when the first motor rotates reversely, the hopper is driven by the first gear and the first rack to move reversely and reset relative to the blanking groove, and the first ratchet drives the first pawl to overcome the acting force of the first elastic part so that the first gear idles relative to the first rotating disc, so that the blanking screw is kept static, and the operation of intermittently injecting the coating solution into the blanking groove is realized.
With reference to fig. 1 and fig. 3, the graphene conductive film processing apparatus of the present embodiment further includes a baffle 13, a slider 14, and a second elastic member 15. Wherein, the slide block 14 is connected with the blanking groove 2 in a sliding way, and the slide block 14 is provided with an inclined first guide groove 16. One end of the baffle 13 is slidably connected with the outlet of the discharging groove 2 in a plug-in mounting manner, the other end of the baffle 13 is provided with a first guide pin 17, and the first guide pin 17 is slidably connected in the first guide groove 16 and can drive the baffle 13 to reciprocate relative to the outlet of the discharging groove 2 so as to control the opening and closing of the outlet of the discharging groove 2. The second elastic member 15 is a coil spring, and is located between the feeding chute 2 and the sliding block 14 to drive the sliding block 14 to move to a position where the first guide groove 16 drives the baffle 13 to move to close the outlet of the feeding chute 2. When the blanking hopper 3 moves to the terminal position of the blanking groove 2, it can contact with the sliding block 14 and move the sliding block 14 together against the second elastic element 15, so that the first guide groove 16 moves the baffle 13 to a position where the outlet of the blanking groove 2 is opened, i.e. the position shown in fig. 3.
At this time, the baffle is arranged at the outlet position of the discharging groove, and the baffle is controlled to move back and forth relative to the discharging groove by the slide block and the second elastic piece, namely, under the action of the second elastic piece, the slide block is driven to move relative to the discharging groove, so that the first guide pin on the baffle is driven to move by the first guide groove on the slide block, the first guide pin is positioned at the upper left end position of the first guide groove, the baffle is driven to move to keep the outlet of the discharging groove at a closed position, conversely, when the discharging hopper moves to the terminal position of the discharging groove and is contacted with the slide block, the slide block can be driven to overcome the acting force of the second elastic piece to continuously move, so that the first guide pin moves to the position shown in fig. 2 relative to the first guide groove, namely, the first guide pin is positioned at the lower right end position of the first guide groove, and the baffle is moved to open the outlet position of the discharging groove. Therefore, the outlet of the discharging groove can be automatically opened after the coating solution is injected into the discharging groove, the coating solution is output along the width direction of the whole glass plate at the same time, the closing of the outlet of the discharging groove is automatically kept in the process of injecting the coating solution into the discharging groove, and the automation of the coating operation and the uniform effect of coating are improved.
As shown in fig. 1 and fig. 2, the graphene conductive film processing apparatus in the present embodiment includes a piston 18. The piston 18 is slidably connected to the lower chute 2, and can be moved to the lower chute 2 in the horizontal direction and extend into the lower chute 2 in the vertical direction, so that the coating solution in the lower chute 2 is pushed out to the outside of the lower chute 2 and coated on the glass plate.
Specifically, the graphene conductive film processing equipment further comprises a first telescopic rod 19, a second rack 20, a second gear 21, a second turntable 22, a pulley 23, a second pawl 24, a third elastic member 25 and a pull rope 26. Wherein, be equipped with second guide way 27 on the silo 2, second guide way 27 is the L type, and one end sets up along the horizontal direction as the horizontal segment, and the other end sets up along the vertical direction as vertical section. One end of the piston 18 is arranged in a vertical direction and can be inserted into the blanking slot 2, the other end of the piston 18 is provided with a second rack 20 in the vertical direction, a second guide pin 28 is arranged between two ends of the piston 18, and the second guide pin 28 is slidably connected in a second guide slot 27. One end of the first telescopic rod 19 is rotatably connected with the lower chute 2, the other end of the first telescopic rod is rotatably connected with the piston 18, the second gear 21 is rotatably connected with the lower chute 2 and can be meshed with the second rack 20, a second ratchet 29 is arranged on the inner circumference of the second gear 21, the second rotary disc 22 is positioned inside the second gear 21, a second pawl 24 is arranged on the outer circumference of the second rotary disc 22, a third elastic piece 25 is of a spring piece structure and positioned between the second pawl 24 and the second rotary disc 22, and the second pawl 24 is meshed with the second ratchet 29 in a one-way mode. Meanwhile, the pulley 23 is coaxially and fixedly connected with the second rotating disc 22, one end of the pull rope 26 is wound on the pulley 23, and the other end of the pull rope passes through the glass plate 5 in the horizontal direction and then is connected with the bracket 1.
At this time, the telescopic action of the first telescopic rod 19 can drive the second guide pin 28 on the piston 18 to move horizontally or vertically along the second guide groove 27, when the second guide pin 28 moves horizontally along the horizontal section of the second guide groove 27, the piston 18 can move to the position of the lower trough 2 or be away from the lower trough 2, and when the second guide pin 28 rotates to move vertically along the vertical section of the second guide groove 27, the piston 18 can extend into the lower trough 2 to push out the coating solution to be coated on the surface of the glass plate 5. When the second guide pin 28 enters the vertical section of the second guide groove 27, the second rack 20 and the second gear 21 are in meshed connection, and in the process that the piston 18 extends into the discharging groove 2, the second gear 21 and the second pawl 24 drive the second turntable 22 to synchronously rotate, so that the pulley 23 is driven to wind the pull rope 26, the discharging groove 2 starts to move horizontally relative to the support 1, namely the discharging groove 2 is driven to move relative to the glass plate 5, the downward movement distance of the piston 18 corresponds to the winding distance of the pulley 23 to the pull rope 26, so that the coating solution is uniformly coated on the surface of the glass plate 5, and on the contrary, in the process that the piston 18 moves upwards and moves out of the discharging groove 2, the second rack 20 drives the second gear 21 to idle, so that the position of the discharging groove 2 is kept motionless, and the subsequent continuous coating operation on the glass plate 5 is realized.
As shown in fig. 1, in the graphene conductive film processing apparatus of the present embodiment, a second telescopic rod 30 is further provided. Second telescopic link 30 sets up along the horizontal direction, one end and support 1 fixed connection, and the other end can stretch out to form the contact with silo 2 down to the silo 2 carries out reverse reset and removes under the drive. At this moment, after the second rack 20 is disengaged from the second gear 21 and connected, the whole discharging chute 2 can be pushed to move reversely by controlling the extending action of the second telescopic rod 30, so that the pulley 23 rotates to release the pull rope 26, and the resetting operation of the discharging chute 2 is realized.
Of course, in other embodiments, the reciprocating movement of the discharging chute relative to the bracket can be controlled separately in other manners, for example, the second telescopic rod is directly connected with the discharging chute, and the reciprocating movement of the second telescopic rod is used to directly control the reciprocating movement of the discharging chute relative to the bracket.
In addition, set up two second guide slots on the lower silo of this embodiment, set up two corresponding second uide pins simultaneously on the piston to can improve piston for lower silo reciprocating motion's stability and precision, improve the coating effect.
Referring to fig. 1, in the graphene conductive film processing apparatus of the present embodiment, a polishing disk 31 is further provided, and the first motor 6 is a dual-shaft motor. One output shaft of the first motor 6 is connected with the first gear 7, the other output shaft is connected with the grinding disc 31 through two belt pulleys 32 and a transmission belt 33, and the grinding disc 31 is positioned above the glass plate 5.
At the moment, after the coating operation of the surface of the glass plate is finished, the first gear idles relative to the first rotary disc by controlling the reverse rotation of the first motor, and the belt pulley can be utilized to drive the polishing disc to rotate to polish and remove lines of the coating solution under the condition that the blanking screw does not rotate, so that the quality of the prepared graphene conductive film is improved.
In the embodiment, the coating solution is output to the blanking groove and the polishing disc is driven to polish and remove the lines by one motor through the adoption of the double-shaft motor and the transmission connection of the pawl ratchet and the blanking screw. Of course, in other embodiments, two separate motors may be used, i.e., a second motor may be provided to drive the polishing disc to perform the pattern polishing and removing operation.
As shown in fig. 1, in the graphene conductive film processing apparatus of the present embodiment, a conveyor 34 is further provided. Conveyer belt 34 sets up on support 1 along the horizontal direction for along the horizontal direction tiling place glass board 5, and can convey the transfer to glass board 5, improve the efficiency of carrying out the preparation to the graphite alkene conducting film.
With reference to fig. 1 to 5, the method for preparing a graphene conductive film by using the graphene conductive film processing apparatus of the present embodiment specifically includes the following steps:
step S1, feeding: the coating solution was placed in a hopper and the glass plate was laid flat on a support in the horizontal direction.
Specifically, first, the prepared coating solution is put into the lower hopper 3, then, the glass plate 5 is horizontally placed on the conveyor belt 34 along the length direction thereof, the conveyor belt 34 is started to convey the glass plate 5 to the coating position, the rotation of the conveyor belt 34 is stopped, and the feeding operation is completed.
Step S2, feeding the coating solution into a tank: and controlling the blanking hopper to move along the blanking groove, controlling the blanking screw rod to rotate, and continuously and uniformly injecting the coating solution in the blanking hopper into the blanking groove.
The method specifically comprises the following steps: the first motor 6 is controlled to drive the first gear 7 to rotate, the first ratchet 12 and the first pawl 10 are used for driving the first rotary disc 9 to synchronously rotate, the blanking screw rod 4 is driven to rotate, the coating solution in the blanking hopper 3 is injected into the blanking groove 2 through the blanking screw rod 4, meanwhile, the first gear 7 is meshed with the first rack 8 to be connected, the first hopper 2 is driven to move relative to the blanking groove 2, so that the coating solution uniformly enters the blanking groove 2, when the blanking hopper 3 moves to the terminal position of the blanking groove 2, the blanking hopper 3 is in contact with the sliding block 14 and drives the sliding block 14 to move by overcoming the acting force of the second elastic piece 15, the first guide pin 17 moves relative to the first guide groove 16, the baffle 13 moves to the outlet opening position of the blanking groove 2 relative to the blanking groove 2, the rotation of the first motor 6 is stopped, and the coating solution feeding operation is completed.
Step S3, coating: and controlling the feeding groove to move relative to the bracket, and discharging the coating solution in the feeding groove and coating the coating solution on the glass plate.
Specifically, after the operation of feeding the coating solution into the groove in step S2 is completed, the lower hopper 3 is just moved to the side position of the lower groove 2, that is, the position right above the lower groove 2 is made to be out, at this time, the first telescopic rod 19 is controlled to perform the extending action, the piston 18 is driven to move to the position right above the lower groove 2 along the horizontal section of the second guide groove 27 through the second guide pin 28, and the second rack 20 and the second gear 21 are engaged and connected, the first telescopic rod 19 is continuously controlled to perform the extending action, the second guide pin 28 is driven to enter the vertical section of the second guide groove 27 and move along the vertical section of the second guide groove 27, at this time, on one hand, the piston 18 extends into the lower groove 2 to push out the coating solution in the lower groove 2 onto the glass plate 5, on the other hand, the second rack 20 drives the second gear 21 to rotate, and the second ratchet 29 and the second pawl 24 are used to drive the second rotary table 22 to synchronously rotate, so as to wind the pulling rope 26, so as to drive the lower groove 2 to synchronously move relative to the glass plate 5, so as to uniformly coat the upper surface of the coating solution on the glass plate 5. When the piston 18 moves to the bottom of the blanking groove 2, the first telescopic rod 19 is controlled to contract to drive the piston 18 to move out of the blanking groove 2 and move to a position far away from the blanking groove 2 along the horizontal direction, and in the process, the second rack 20 drives the second gear 21 to idle, namely, the blanking groove 2 stops moving relative to the glass plate 5.
Step S4, removing the lines: and (3) after the coating solution in the discharging groove is discharged in the step S3, controlling the discharging hopper to move to reset relative to the discharging groove, and simultaneously controlling the second motor to rotate to drive the polishing disc to polish and remove the lines of the coating solution coated on the glass plate.
Specifically, after the operation of step S3 is completed, control first motor 6 and carry out the reverse rotation, drive first gear 7 on the one hand and carry out reverse movement along first rack 8, and make hopper 3 move to the reset position for unloading groove 2 down, in this process, first gear 7 idles for first carousel 9, make unloading screw rod 4 keep stall, on the other hand drives through belt pulley 32 and beats mill 31 and rotate, thereby polish the coating solution who accomplishes the coating, and then polish the line, make the coating solution surface level, accomplish the line removal operation.
And S5, resetting: and after the blanking groove moves relative to the bracket to a position where the whole glass plate is coated with the coating solution, controlling the blanking groove to move reversely relative to the bracket to an initial position.
Specifically, the operations of step S2 to step S4 are repeated until the entire glass plate 5 is coated with the coating solution. After finishing the coating operation, control first telescopic link 19 to contract and reset, make second rack 20 and second gear 21 break away from the meshing and be connected, control second telescopic link 30 and stretch out the action to the silo 2 backward movement under the promotion makes pulley 23 rotate and releases stay cord 26, realizes the reset operation of silo 2 down.
Step S6, blanking: and (4) taking the glass plate coated with the coating solution from the support to finish the preparation of the graphene conductive film. Specifically, the conveyor belt 34 is started again to rotate, the glass plate 5 which is coated and subjected to the pattern removing operation is driven to move, then the glass plate 5 is manually taken down, the subsequent processes are performed, and the preparation operation of the graphene conductive film is completed.
Claims (10)
1. The preparation method of the graphene conductive film is characterized in that graphene conductive film processing equipment is adopted for preparing the graphene conductive film, and the graphene conductive film processing equipment comprises a support, a blanking groove, a blanking hopper and a blanking screw; the support is used for flatly laying glass plates in the horizontal direction, the blanking groove is positioned above the glass plates and is in sliding connection with the support in the horizontal direction, the blanking hopper is positioned above the blanking groove and is in sliding connection with the blanking groove, the outlet of the blanking hopper is communicated with the inlet of the blanking groove, and the blanking screw is positioned in the blanking hopper and extends to the outlet of the blanking hopper;
the preparation method of the graphene conductive film specifically comprises the following steps:
step S1, feeding: putting the coating solution into the discharging hopper, and flatly laying the glass plate on the bracket along the horizontal direction;
step S2, feeding the coating solution into a tank: controlling the blanking hopper to move along the blanking groove, controlling the blanking screw to rotate, and continuously and uniformly injecting the coating solution in the blanking hopper into the blanking groove;
step S3, coating: controlling the blanking groove to move relative to the bracket, discharging the coating solution in the blanking groove and coating the coating solution on the glass plate;
and S5, resetting: the blanking groove moves relative to the support to the position where the whole glass plate is coated with the coating solution, and then the blanking groove is controlled to move reversely relative to the support to the initial position;
step S6, blanking: and taking the glass plate coated with the coating solution from the support, and performing subsequent processes to complete the preparation of the graphene conductive film.
2. The method for preparing the graphene conductive film according to claim 1, wherein the graphene conductive film processing equipment comprises a first motor, a first gear and a first rack; the first motor is arranged on the discharging hopper, the output shaft of the first motor is sleeved and fixed with the first gear, the first rack is fixed on the discharging groove, and the first gear is meshed and connected with the first rack.
3. The method for preparing the graphene conductive film according to claim 2, wherein the graphene conductive film processing equipment comprises a first turntable, a first pawl and a first elastic member; the inner circumferential surface of the first gear is provided with a first ratchet, the first rotary disc is coaxially and fixedly connected with the blanking screw and is positioned inside the first gear, the outer circumferential surface of the first rotary disc is provided with a first pawl, the first elastic piece is positioned between the first pawl and the first rotary disc, and the first pawl is in one-way meshed connection with the first ratchet.
4. The method for preparing the graphene conductive film according to claim 1, wherein the graphene conductive film processing equipment comprises a baffle plate, a sliding block and a second elastic member; the sliding block is connected with the blanking groove in a sliding mode, and a first guide groove is formed in the sliding block; one end of the baffle is in sliding connection with the outlet of the blanking groove, the other end of the baffle is provided with a first guide pin, and the first guide pin is in sliding connection with the first guide groove and can drive the baffle to reciprocate relative to the outlet of the blanking groove so as to control the opening and closing of the outlet of the blanking groove; the second elastic piece is positioned between the discharging groove and the sliding block so as to drive the sliding block to move to a position where the first guide groove drives the baffle to move to close the outlet of the discharging groove; when the blanking hopper moves to the terminal position of the blanking groove, the blanking hopper can be in contact with the sliding block and overcome the second elastic piece to drive the sliding block to move together, so that the baffle plate moves to a position for opening the outlet of the blanking groove.
5. The method of claim 1, wherein the graphene conductive film processing equipment comprises a piston; the piston is connected with the discharging groove in a sliding mode and can stretch into the discharging groove to push the coating solution in the discharging groove out of the glass plate.
6. The method for preparing the graphene conductive film according to claim 5, wherein the graphene conductive film processing equipment comprises a first telescopic rod, a second rack, a second gear, a second rotary table, a pulley, a second pawl, a third elastic member and a pull rope; a second guide groove is formed in the blanking groove, the second guide groove is L-shaped, one end of the second guide groove is arranged in the vertical direction, and the other end of the second guide groove is arranged in the horizontal direction; one end of the piston is arranged along the vertical direction and can be inserted into the discharging groove, the other end of the piston is provided with a second rack along the vertical direction, a second guide pin is arranged between the two ends of the piston, and the second guide pin is connected in the second guide groove in a sliding manner; one end of the first telescopic rod is rotatably connected with the blanking groove, the other end of the first telescopic rod is rotatably connected with the piston, the second gear is rotatably connected with the blanking groove and can be meshed with the second rack, a second ratchet is arranged on the inner circumference of the second gear, the second rotary disc is positioned inside the second gear, a second pawl is arranged on the outer circumference of the second rotary disc, the third elastic piece is positioned between the second pawl and the second rotary disc, and the second pawl is meshed with the second ratchet in a one-way manner; the pulley is coaxially and fixedly connected with the second rotary table, one end of the pull rope is wound on the pulley, and the other end of the pull rope is connected with the bracket;
the first telescopic rod can drive a second guide pin of the piston to move in the horizontal direction along the second guide groove to move the piston to the discharging groove, and move downwards in the vertical direction along the second guide groove to insert the piston into the discharging groove and push coating solution to be discharged, meanwhile, the second rack is meshed with the second gear, the second turntable is driven to rotate through the second gear and the second pawl, the pulley is further driven to wind the pull rope, and the discharging groove is driven to move relative to the glass plate.
7. The method for preparing a graphene conductive film according to claim 6, wherein the graphene conductive film processing equipment comprises a second telescopic rod; the second telescopic link sets up along the horizontal direction, one end with support fixed connection, the other end can stretch out to with the silo contact of unloading, in order to drive the silo of unloading carries out reverse reset and removes.
8. The method for preparing a graphene conductive film according to claim 2, wherein the graphene conductive film processing equipment comprises a second motor and a polishing disc; the second motor is arranged on the discharging hopper, and the polishing disc is positioned above the glass plate and is connected with an output shaft of the second motor;
the preparation method of the graphene conductive film further comprises the following steps of S4, removing the lines: and after the coating solution in the discharging groove is discharged in the step S3, controlling the discharging hopper to move to the reset position relative to the discharging groove, and simultaneously controlling the second motor to rotate to drive the polishing disc to polish and remove the lines of the coating solution coated on the glass plate.
9. The method according to claim 8, wherein the first motor and the second motor are the same motor and comprise two output shafts, one output shaft is connected to the first gear, and the other output shaft is connected to the polishing disk.
10. The method for preparing a graphene conductive film according to any one of claims 1 to 9, wherein the graphene conductive film processing equipment comprises a conveyor belt; the conveyer belt with the leg joint for along the tiling of horizontal direction place the glass board.
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| CN115321833B (en) | 2024-03-01 |
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