CN114180856A - Process method of photovoltaic glass double-layer antireflection coating production line - Google Patents
Process method of photovoltaic glass double-layer antireflection coating production line Download PDFInfo
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- CN114180856A CN114180856A CN202111553633.1A CN202111553633A CN114180856A CN 114180856 A CN114180856 A CN 114180856A CN 202111553633 A CN202111553633 A CN 202111553633A CN 114180856 A CN114180856 A CN 114180856A
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- 239000011521 glass Substances 0.000 title claims abstract description 201
- 238000000576 coating method Methods 0.000 title claims abstract description 128
- 239000011248 coating agent Substances 0.000 title claims abstract description 126
- 238000000034 method Methods 0.000 title claims abstract description 58
- 230000008569 process Effects 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000004140 cleaning Methods 0.000 claims abstract description 48
- 238000000227 grinding Methods 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000011068 loading method Methods 0.000 claims abstract description 11
- 239000007888 film coating Substances 0.000 claims abstract description 6
- 238000009501 film coating Methods 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims description 40
- 238000003825 pressing Methods 0.000 claims description 20
- 238000010073 coating (rubber) Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 238000004026 adhesive bonding Methods 0.000 claims description 10
- 238000013519 translation Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000012459 cleaning agent Substances 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 238000003892 spreading Methods 0.000 claims description 4
- 230000007480 spreading Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003749 cleanliness Effects 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000002834 transmittance Methods 0.000 abstract description 9
- 239000010410 layer Substances 0.000 description 71
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 229910021419 crystalline silicon Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229910021426 porous silicon Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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
- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B11/00—Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto
- B08B11/04—Cleaning flexible or delicate articles by methods or apparatus specially adapted thereto specially adapted for plate glass, e.g. prior to manufacture of windshields
-
- 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
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
-
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
-
- 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
-
- 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
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
-
- 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
- C03C17/23—Oxides
- C03C17/25—Oxides by deposition from the liquid phase
-
- 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
- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
- C03C2217/21—Oxides
- C03C2217/213—SiO2
-
- 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
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/425—Coatings comprising at least one inhomogeneous layer consisting of a porous layer
-
- 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
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/73—Anti-reflective coatings with specific characteristics
-
- 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
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/118—Deposition methods from solutions or suspensions by roller-coating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Composite Materials (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
Abstract
The invention provides a process method of a photovoltaic glass double-layer antireflection coating production line, which comprises the following steps of: 1) a manipulator of the loading machine moves the glass to a horizontal position; 2) grinding four sides of the glass by using the grinding equipment; 3) cleaning the glass by a cleaning machine; 4) the preheating furnace heats the glass; 5) a first layer of film coating machine is used for coating a first layer of antireflection film on the surface of the glass; 6) heating and curing the first antireflection film of the glass by a first-layer curing furnace; 7) the second-layer film coating machine is used for coating a second antireflection film on the surface of the glass; 8) and heating and curing the two antireflection films of the glass by a two-layer curing furnace. The technological method of the photovoltaic glass double-layer antireflection coating production line optimizes the technological steps, has high automation degree, is easy to realize, and has high coating quality, and the technological method ensures that the light transmittance of the glass reaches more than 94.2 percent by coating the glass twice.
Description
Technical Field
The invention relates to the technical field of glass deep processing, in particular to a process method of a photovoltaic glass double-layer antireflection coating production line.
Background
The primary factor determining the efficiency of crystalline silicon solar cells is the crystalline silicon technology, and the photovoltaic cover plate glass protecting the cell module is the secondary factor, and because the improvement of the optical characteristics of the photovoltaic glass is far lower in cost than the improvement of the crystalline silicon technology, the improvement of the optical characteristics of the photovoltaic glass becomes very important in the market of photovoltaic cells. The light transmittance of the common ultra-white patterned glass is only about 91.5%, and a method which is popular in the industry at present is to plate an antireflection film on a solar light incident surface of the solar packaging glass to improve the light transmittance, increase the output power of a battery assembly and reduce the per-degree electric cost of the battery assembly, wherein the antireflection film can improve the transmittance by 1.8% -2.5%, the output power of a crystalline silicon battery assembly is also improved by 2% -4%, but the photovoltaic cover plate glass with the light transmittance higher than 94.2% in the market at present has competitiveness. How to design a double-layer antireflection coating method for glass, which is easy to realize and has high coating quality, is a problem to be solved by the technical personnel in the field.
Disclosure of Invention
In view of the above disadvantages of the prior art, the technical problem to be solved by the present invention is to provide a process method for a photovoltaic glass double-layer antireflection coating line, which is easy to implement and has high coating quality.
In order to achieve the above objects and other related objects, the present invention provides a process method for a photovoltaic glass double-layer antireflection coating production line, comprising the steps of:
1) a mechanical arm of the loading machine moves the glass to a horizontal position and conveys the glass to the grinding device;
2) after the grinding device grinds the four edges of the glass, the glass is conveyed to a cleaning machine;
3) after the glass is cleaned by the cleaning machine, conveying the glass to the preheating furnace;
4) after the preheating furnace heats the glass, the glass is conveyed to a first-layer coating machine;
5) the first layer coating machine is used for carrying out coating operation of a first layer of antireflection film on the surface of the glass and then conveying the glass to a first layer curing furnace;
6) the first layer curing furnace heats and cures the first layer of antireflection film of the glass, and then conveys the glass to the second layer coating machine;
7) the second-layer coating machine is used for carrying out coating operation of a second-layer antireflection film on the surface of the glass and then conveying the glass to a second-layer curing furnace;
8) the two-layer curing furnace heats and cures the two antireflection films of the glass;
the first layer coating machine in the step 5) and the second layer coating machine in the step 7) are identical in structure, both the first layer coating machine and the second layer coating machine are coating equipment, each coating equipment comprises a coating chamber, and an inlet belt conveying roller way, a coating machine main body and an outlet belt conveying roller way are sequentially arranged in each coating chamber; the coating machine main body comprises a coating conveying belt, a material pressing roller, a glue coating roller, a quantitative roller, a material pressing supporting roller and a glue coating supporting roller; the coated conveying belt comprises two belt driving rollers and a belt piece, the belt piece is wound on the two belt driving rollers and drives the belt piece to rotate, the inlet belt conveying roller way drives the glass to move towards the belt piece, and the belt piece drives the glass to move towards the outlet belt conveying roller way; the pressing supporting roller and the gluing supporting roller are arranged inside the belt piece; the pressing roll is positioned right above the pressing support roll, the belt piece is positioned between the pressing support roll and the pressing roll, and the pressing roll is contacted with the glass when the glass passes through the pressing roll; the glue spreader is positioned right above the glue spreading support roller, the outer side surface of the glue spreader is an elastic roller body, latticed concave grains are arranged on the outer side surface of the quantitative roller, the quantitative roller props against the glue spreader, and a channel enclosed by the concave grains of the quantitative roller and the glue spreader is used for allowing coating liquid to flow in, so that the coating liquid is attached to the glue spreader; the quantitative roller is connected with a translation driving motor, and the translation driving motor drives the quantitative roller to move along the horizontal direction; the rubber coating support roller is connected with the rubber coating roller, the rubber coating roller rolls, glass passes through during the rubber coating roller, the rubber coating roller coats coating liquid on the glass surface, the rubber coating roller is connected with the rubber coating roller rotating electrical machines, the rubber coating roller is connected with the rubber coating roller lifting motor, the belt driving motor is connected with the belt driving roller, the pressure material lifting motor is connected with the pressure material roller.
Preferably, the loading speed of the loading machine is 6-10 seconds per piece.
Preferably, the lapping device comprises a first double-side lapping machine, a steering machine and a second double-side lapping machine which are arranged in sequence; the glass is of a quadrilateral structure, two opposite edges of the glass are subjected to edge grinding in the first double-edge grinding machine, the glass is conveyed into the steering machine, the glass is conveyed into the second double-edge grinding machine after being rotated for 90 degrees in the steering machine, and the other two opposite edges of the glass are subjected to edge grinding in the second double-edge grinding machine.
Preferably, the step of cleaning the glass by the cleaning machine comprises a disc brush device cleaning step and a roller brush device cleaning step.
Further, in the step of cleaning the disc brush device, polishing liquid is injected into the disc of the disc brush device.
Further, in the cleaning step of the disc brush device, alkaline cleaning agents are injected into the discs of the disc brush device.
Further, the roller brush device cleaning step adopts three roller brush cleaning steps, warm water at 30-50 ℃ is injected in the cleaning process, and three air knives are adopted as equipment for cleaning the roller brush; deionized water is used as cleaning water, and the resistivity is more than or equal to 10 MOmega.
Preferably, the temperature inside the coating chamber is 20 +/-5 ℃; the humidity inside the film coating chamber is 50% +/-5%; the cleanliness of the coating chamber is as follows: on the order of 10 ten thousand.
Preferably, the first layer of curing oven and the second layer of curing oven have the same structure, and the first layer of curing oven comprises a first oven body and a second oven body which are arranged in sequence; the first furnace body and the second furnace body have the same structure; a plurality of heating devices are arranged on the side wall of the interior of the first furnace body from top to bottom; a lifting device is arranged in the first furnace body and comprises two conveying chains, and each conveying chain is provided with a plurality of bearing structures which are sequentially arranged from top to bottom; the inlet of the first furnace body is arranged at the lower part of the first furnace body, and the outlet of the first furnace body is arranged at the upper part of the first furnace body; the inlet of the second furnace body is arranged at the upper part of the second furnace body, the outlet of the second furnace body is arranged at the lower part of the second furnace body, and the outlet of the first furnace body is arranged opposite to the inlet of the second furnace body; the conveying structure conveys glass into the first furnace body from an inlet of the first furnace body, the two lowest bearing structures of the two conveying chains of the first furnace body support the glass, the two conveying chains of the first furnace body move to enable the glass to move upwards, when the glass moves to an outlet of the first furnace body, the transmission structure drives the glass to sequentially pass through the outlet of the first furnace body and the inlet of the second furnace body, the glass enters the second furnace body, the two uppermost bearing structures of the second furnace body support the glass, the two conveying chains of the second furnace body move to enable the glass to move downwards, and when the glass moves to the outlet of the second furnace body, the conveying structure moves the glass out of the outlet of the second furnace body; when the glass is in the first furnace body and the second furnace body, the heating device heats the glass.
Preferably, when the outlet of the two-layer curing furnace is connected with the toughening furnace through a roller way, the temperature of the two-layer curing furnace is 140-160 ℃; when the outlet of the two-layer curing furnace is transferred through the falling frame, the temperature of the two-layer curing furnace is 190-210 ℃.
As mentioned above, the process method of the photovoltaic glass double-layer antireflection coating production line has the following beneficial effects:
according to the process method of the photovoltaic glass double-layer antireflection coating production line, a manipulator of a sheet loading machine can automatically load glass; the grinding device automatically grinds four edges of the glass; the cleaning machine can clean the glass; because the quantitative roller is connected with the translation driving motor, the glue spreader is connected with the rubber roll rotating motor, the glue spreader is connected with the rubber roll lifting motor, the belt driving roller is connected with the belt driving motor, and the material pressing roller is connected with the material pressing lifting motor, the precision of the translation driving motor, the rubber roll rotating motor, the rubber roll lifting motor, the belt driving motor and the material pressing lifting motor is improved, and the control precision of film coating can be improved; the curing oven can heat and cure the antireflection film; the technological method of the photovoltaic glass double-layer antireflection coating production line optimizes the technological steps, has high automation degree, is easy to realize, and has high coating quality, and the technological method ensures that the light transmittance of the glass reaches more than 94.2 percent by coating the glass twice.
Drawings
Fig. 1 is a schematic structural diagram of a photovoltaic glass double-layer antireflection coating production line according to this embodiment.
Fig. 2 is a schematic structural diagram of a grinding plate device of the double-layer antireflection coating production line of the photovoltaic glass of the embodiment.
Fig. 3 is a schematic structural diagram of a cleaning machine of the photovoltaic glass double-layer antireflection coating production line of the embodiment.
Fig. 4 is a schematic structural diagram of a coating apparatus of the photovoltaic glass double-layer antireflection coating line according to the embodiment.
Fig. 5 is a schematic view showing the internal structure of the first curing oven of the photovoltaic glass double-layer antireflection coating production line of the embodiment.
Fig. 6 shows the external structural intent of the first coater of the double-layer antireflection coating line for photovoltaic glass according to this embodiment.
Fig. 7 is a process flow chart of the photovoltaic glass double-layer antireflection coating production line of the embodiment.
Description of the reference numerals
1 glass
100 sheet feeding machine
200 grinding plate device
210 first double-side lapping machine
220 steering engine
230 second double-side sheet grinder
300 cleaning machine
310 dish
320 air knife
400 preheating furnace
510 first layer coating machine
520 two-layer film coating machine
610 first layer curing oven
611 first furnace body
612 second furnace body
613 heating device
614 conveyor chain
615 receiving structure
616 furnace bottom rollgang
620 two-layer solidifying furnace
710 inlet belt rollgang
720 coating machine main part
721 coating conveying belt
7211 Belt drive roller
7212 Belt Member
722 nip roll
723 glue spreader
724 quantitative roller
725 material pressing support roller
726 glue spreading support roller
727 graining roller
728 deviation rectifying roller
730 outlet belt conveying roller way
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to the attached drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
As shown in fig. 1 to 7, the process method of the photovoltaic glass double-layer antireflection coating assembly line of the embodiment includes the following steps:
1) the robot hand of the loading machine 100 moves the glass 1 to the horizontal position and conveys the glass 1 toward the grinding device 200;
2) after the four sides of the glass 1 are ground by the grinding equipment 200, the glass 1 is conveyed to the cleaning machine 300;
3) after the glass 1 is cleaned by the cleaning machine 300, the glass 1 is conveyed to the preheating furnace 400;
4) after the preheating furnace 400 heats the glass 1, the glass 1 is conveyed to a first-layer coating machine 510;
5) after the first-layer coating machine 510 performs the first-layer antireflection coating operation on the surface of the glass 1, conveying the glass 1 to the first-layer curing furnace 610;
6) after the first-layer curing furnace 610 heats and cures the first antireflection film of the glass 1, conveying the glass 1 to a two-layer coating machine 520;
7) the secondary coating machine 520 is used for carrying out coating operation of a second antireflection film on the surface of the glass 1 and then conveying the glass 1 to the secondary curing furnace 620;
8) the two-layer curing furnace 620 heats and cures the two antireflection films of the glass 1;
the first layer coating machine 510 in the step 5) and the second layer coating machine 520 in the step 7) have the same structure, both the first layer coating machine 510 and the second layer coating machine 520 are coating equipment, the coating equipment comprises a coating chamber, and an inlet belt conveying roller way 710, a coating machine main body 720 and an outlet belt conveying roller way 730 are sequentially arranged in the coating chamber; the coating machine main body 720 comprises a coating conveying belt 721, a nip roller 722, a glue spreader 723, a quantitative roller 724, a nip supporting roller 725 and a glue supporting roller 726; the coating conveying belt 721 comprises two belt driving rollers 7211 and a belt member 7212, the belt member 7212 is wound on the two belt driving rollers 7211, the two belt driving rollers 7211 drive the belt member 7212 to rotate, the inlet belt conveying roller way 710 drives the glass 1 to move towards the belt member 7212, and the belt member 7212 drives the glass 1 to move towards the outlet belt conveying roller way 730; a material pressing supporting roller 725 and a gluing supporting roller 726 are arranged inside the belt member 7212; the nip roll 722 is positioned right above the nip support roll 725, the belt 7212 is positioned between the nip support roll 725 and the nip roll 722, and the nip roll 722 is in contact with the glass 1 when the glass 1 passes through the nip roll 722; the glue spreader 723 is positioned right above the glue supporting roller 726, the outer side of the glue spreader 723 is an elastic roller body, the outer side of the quantitative roller 724 is provided with latticed concave lines, the quantitative roller 724 props against the glue spreader 723, the central axis of the quantitative roller 724 is parallel to the central axis of the glue spreader 723, and a channel surrounded by the concave lines of the quantitative roller 724 and the glue spreader 723 is used for allowing coating liquid to flow in so that the coating liquid is attached to the glue spreader 723; the quantitative roller 724 is connected with a translation driving motor, and the translation driving motor drives the quantitative roller 724 to move along the horizontal direction; the belt component 7212 is arranged between the gluing support roller 726 and the gluing roller 723, the gluing roller 723 rolls, when the glass 1 passes through the gluing roller 723, the gluing roller 723 coats the coating liquid on the surface of the glass 1, the gluing roller 723 is connected with a rubber roll rotating motor, the gluing roller 723 is connected with a rubber roll lifting motor, the belt drive roller 7211 is connected with a belt drive motor, and the nip roller 722 is connected with a nip lifting motor.
In the process method of the photovoltaic glass double-layer antireflection coating production line, a manipulator of a sheet feeding machine 100 can perform automatic sheet feeding operation on glass 1; the grinding apparatus 200 performs an automatic grinding operation on four sides of the glass 1; the cleaning machine 300 can clean the glass 1; because the quantitative roller 724 is connected with the translation driving motor, the glue spreader 723 is connected with the glue roller rotating motor, the glue spreader 723 is connected with the glue roller lifting motor, the belt driving roller 7211 is connected with the belt driving motor, and the material pressing roller 722 is connected with the material pressing lifting motor, the precision of the translation driving motor, the glue roller rotating motor, the glue roller lifting motor, the belt driving motor and the material pressing lifting motor is improved, and the coating control precision can be improved; the curing oven can heat and cure the antireflection film; the technological method of the photovoltaic glass double-layer antireflection coating production line optimizes the technological steps, has high automation degree, is easy to realize, and has high coating quality, and the technological method ensures that the light transmittance of the glass 1 reaches more than 94.2 percent by coating the glass 1 twice. The material pressing roller 722 is driven by a material pressing lifting motor to move up and down, and the upper glue coating roller 723 is driven by a rubber roller lifting motor to move up and down so as to control the thickness of a coating layer.
In this embodiment, the coating chamber is provided with a corrugated roll 727 inside, the corrugated roll 727 is arranged above the glue spreader 723, the corrugated roll 727 presses the glue spreader 723, and the corrugated roll 727 performs a corrugated function on the glue spreader 723. The belt member 7212 is provided with a deviation-correcting roller 728, and the deviation-correcting roller 728 plays a role in guiding and preventing the belt member 7212 from being shifted in position during the moving process. The glue roller 723 is made of polyurethane and the metering roller 724 is made of stainless steel.
The loading speed of the loading machine 100 is 6-10 seconds per piece. The loading machine 100 adopts a mechanical arm to load the sheets, so that the loading period is short.
The lapping apparatus 200 includes a first double-side lapping machine 210, a steering machine 220, and a second double-side lapping machine 230, which are sequentially disposed; the glass 1 is of a quadrilateral structure, two opposite edges of the glass 1 are ground in a first double-edge grinding machine 210, the glass 1 is conveyed into a steering machine 220, the glass 1 is conveyed into a second double-edge grinding machine 230 after being rotated by 90 degrees in the steering machine 220, and the other two opposite edges of the glass 1 are ground in the second double-edge grinding machine 230. The grinding chip device 200 can realize grinding of four sides of the glass 1. In this embodiment, the first double side grinder 210 and the second double side grinder 230 are capable of performing chamfer grinding.
The step of cleaning the glass 1 by the cleaning machine 300 includes a disc brush device cleaning step and a roller brush device cleaning step. The disc brush device cleaning step and the roller brush device cleaning step enable thorough cleaning of the glass 1.
In the disc brush device cleaning step, the disc 310 of the disc brush device is filled with a polishing liquid. In this embodiment, the polishing solution is cerium oxide.
In the disc brush device cleaning step, the disc 310 of the disc brush device is filled with an alkaline cleaner. In this embodiment, the alkaline cleaner is a cleaning agent, and the alkaline cleaner cleans greasy dirt on the surface of the glass 1, and the weight ratio of the cleaning agent to water is 1: 104.
the cleaning step of the roller brush device adopts three roller brushes for cleaning, warm water with the temperature of 30-50 ℃ is injected in the cleaning process, and the equipment for cleaning the roller brushes adopts three air knives 320; deionized water is used as cleaning water, and the resistivity is more than or equal to 10 MOmega.
The preheating furnace 400 has two functions, wherein the first function is to enable the glass 1 to have a certain temperature when entering the coating equipment, so that the surface drying speed of the antireflection coating liquid is accelerated, and the edge shrinkage of the glass 1 is reduced; the second function is to make the temperature of the glass 1 constant, stabilize the control parameters of the coating process and facilitate the control.
The temperature in the coating chamber is 20 +/-5 ℃; the humidity inside the coating chamber is 50% +/-5%; the cleanliness of the coating chamber is as follows: 10 ten thousand to reduce concentration change caused by volatilization of the coating liquid.
The first layer of curing oven 610 and the second layer of curing oven 620 have the same structure, and the first layer of curing oven 610 comprises a first oven body 611 and a second oven body 612 which are arranged in sequence; the first furnace body 611 and the second furnace body 612 have the same structure; a plurality of heating devices 613 are arranged on the side wall of the first furnace body 611 from top to bottom; the heating device 613 is an infrared heating tube; two conveying chains 614 are arranged inside the first furnace body 611, and each conveying chain 614 is provided with a plurality of bearing structures 615 which are arranged from top to bottom in sequence; an inlet of the first furnace body 611 is arranged at the lower part of the first furnace body 611, and an outlet of the first furnace body 611 is arranged at the upper part of the first furnace body 611; the inlet of the second furnace body 612 is arranged at the upper part of the second furnace body 612, the outlet of the second furnace body 612 is arranged at the lower part of the second furnace body 612, and the outlet of the first furnace body 611 is arranged opposite to the inlet of the second furnace body 612; the conveying structure conveys the glass 1 into the first furnace body 611 from an inlet of the first furnace body 611, the two receiving structures 615, which are positioned at the lowest part, of the two conveying chains 614 of the first furnace body 611 support the glass 1, the two conveying chains 614 of the first furnace body 611 move to enable the glass 1 to move upwards, when the glass 1 moves to an outlet of the first furnace body 611, the transmission structure drives the glass 1 to sequentially pass through the outlet of the first furnace body 611 and the inlet of the second furnace body 612, the glass 1 enters the second furnace body 612, the two receiving structures 615, which are positioned at the highest part, of the second furnace body 612 support the glass 1, the two conveying chains 614 of the second furnace body 612 move to enable the glass 1 to move downwards, and when the glass 1 moves to the outlet of the second furnace body 612, the conveying structure moves the glass 1 out of the outlet of the second furnace body 612; the heating device 613 heats the glass 1 while the glass 1 is in the first furnace body 611 and the second furnace body 612.
Because the glass 1 moves in the vertical direction in the first furnace body 611 and the second furnace body 612, the first furnace body 611 and the second furnace body 612 are of a vertical structure, and the first curing furnace 610 and the second curing furnace 620 are arranged, so that the length of a production line is saved, the space above a plant is saved, and the space above the plant is fully utilized. The glass 1 is conveyed from the bottom to the top in the first furnace 611, and the glass 1 is conveyed from the top to the bottom in the second furnace 612. The direction of conveyance of the glass 1 in the first-tier curing furnace 610 is the direction of arrow a. The first furnace body 611 and the second furnace body 612 can store 10 glass sheets 1 at most.
The glass 1 is sent to the first furnace body 611 through a furnace bottom conveying roller table 616, the two receiving structures 615, which are positioned at the lowest part, of the two conveying chains 614 of the first furnace body 611 support the glass 1, the conveying chains 614 drive the two receiving structures 615 to ascend for a fixed distance and then stop, after the next piece of glass 1 is sent to the first furnace body 611, the conveying chains 614 ascend for a fixed distance again and then stop waiting for the next piece of glass 1, and the steps are repeated until the furnace is filled with 8-10 pieces of glass 1; in the process, the heating device 613 in the first furnace body 611 is turned on according to a set power, and the heating device 613 in the first furnace body 611 gradually starts the curing process of the film layer according to a set temperature gradient; when the first furnace body 611 is full of glass 1, the uppermost glass 1 in the first furnace body 611 starts to be conveyed into the second furnace body 612, the glass 1 enters the two receiving structures 615 of the second furnace body 612 at the top, the conveying speed of the conveying chain 614 in the second furnace body 612 is the same as that of the conveying chain 614 of the first furnace body 611, and the conveying chain 614 in the second furnace body 612 gradually conveys the glass 1 downwards until the glass 1 leaves the second furnace body 612 through the outlet.
When the outlet of the two-layer curing furnace 620 is connected with the toughening furnace through a roller way, the temperature of the two-layer curing furnace 620 is 140-160 ℃; when the outlet of the two-layer curing furnace 620 is transferred through the falling frame, the temperature of the two-layer curing furnace 620 is 190-210 ℃.
The first furnace body 611 and the second furnace body 612 are vertical structures, and have a main function of primarily curing the antireflection film, so that the antireflection film has certain strength, namely, the adhesion and hardness of the antireflection film are high. In the embodiment, when the outlet of the two-layer curing furnace 620 is directly connected with the toughening furnace through the roller way, manual transfer is not needed, the strength requirement of the antireflection film is not high, the curing temperature is not high, and the curing temperature is 140-160 ℃; when the exit of the two-layer curing oven 620 is transferred through a rack, the antireflection film must have a considerable strength to facilitate manual transfer, and the temperature is generally controlled to 190-210 ℃.
The technological method of the photovoltaic glass double-layer antireflection coating production line adopts a sol-gel method to prepare nano silicon dioxide sol and a porous silicon dioxide film layer, the first layer adopts an acid film preparation method to prepare a silicon dioxide film, and the second layer adopts a mixed film preparation method to prepare the silicon dioxide film. And sending the coated glass 1 into a rear tempering working section after surface drying and heating curing to form the final antireflection coated photovoltaic glass 1.
The process method of the photovoltaic glass double-layer antireflection coating assembly line adopts a double-layer coating mode, improves the coating quality and the light transmittance, improves the whole light transmittance to more than 94.2%, can improve the power of a corresponding photovoltaic cell by 1W, and solves the problems of high energy consumption and insufficient curing of the coating of the existing photovoltaic glass 1.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A process method of a photovoltaic glass double-layer antireflection coating production line is characterized by comprising the following steps:
1) a manipulator of the loading machine (100) moves the glass (1) to a horizontal position and conveys the glass (1) toward the lapping device (200);
2) after the grinding device (200) grinds the four sides of the glass (1), the glass (1) is conveyed to the cleaning machine (300);
3) after the cleaning machine (300) cleans the glass (1), the glass (1) is conveyed to the preheating furnace (400);
4) after the preheating furnace (400) heats the glass (1), the glass (1) is conveyed to a first-layer coating machine (510);
5) the first-layer coating machine (510) is used for carrying out coating operation of a first antireflection film on the surface of the glass (1) and then conveying the glass (1) to the first-layer curing furnace (610);
6) the first-layer curing furnace (610) heats and cures the first antireflection film of the glass (1), and then conveys the glass (1) to a two-layer coating machine (520);
7) the two-layer coating machine (520) is used for carrying out coating operation of a second antireflection film on the surface of the glass (1) and then conveying the glass (1) to a two-layer curing furnace (620);
8) the two-layer curing furnace (620) heats and cures the two antireflection films of the glass (1);
the first layer coating machine (510) in the step 5) and the second layer coating machine (520) in the step 7) are identical in structure, the first layer coating machine (510) and the second layer coating machine (520) are both coating equipment, the coating equipment comprises a coating chamber, and an inlet belt conveying roller way (710), a coating machine main body (720) and an outlet belt conveying roller way (730) are sequentially arranged in the coating chamber; the coating machine main body (720) comprises a coating conveying belt (721), a nip roller (722), a glue spreader (723), a quantitative roller (724), a nip support roller (725) and a glue spreading support roller (726); the coating conveying belt (721) comprises two belt driving rollers (7211) and a belt piece (7212), the belt piece (7212) is wound on the two belt driving rollers (7211), the two belt driving rollers (7211) drive the belt piece (7212) to rotate, the inlet belt conveying roller way (710) drives the glass (1) to move towards the belt piece (7212), and the belt piece (7212) drives the glass (1) to move towards the outlet belt conveying roller way (730); the pressing supporting roller (725) and the gluing supporting roller (726) are arranged inside the belt piece (7212); the nip roll (722) is directly above the nip support roll (725), the belt member (7212) is between the nip support roll (725) and the nip roll (722), and the nip roll (722) is in contact with the glass (1) when the glass (1) passes through the nip roll (722); the glue spreader (723) is positioned right above the glue spreading support roller (726), the outer side of the glue spreader (723) is an elastic roller body, the outer side of the quantitative roller (724) is provided with latticed concave lines, the quantitative roller (724) abuts against the glue spreader (723), and a channel surrounded by the concave lines of the quantitative roller (724) and the glue spreader (723) is used for allowing coating liquid to flow in, so that the coating liquid is attached to the glue spreader (723); the quantitative roller (724) is connected with a translation driving motor, and the translation driving motor drives the quantitative roller (724) to move along the horizontal direction; belt spare (7212) are in rubber coating backing roll (726) with between rubber coating roller (723), rubber coating roller (723) roll, glass (1) process during rubber coating roller (723), rubber coating roller (723) is scribbled coating liquid on glass (1) surface, rubber roll rotating electrical machines is connected in rubber coating roller (723), rubber roll elevator motor is connected in rubber coating roller (723), belt drive motor is connected in belt drive roller (7211), press material elevator motor is connected in pressure feed roller (722).
2. The process method of the photovoltaic glass double-layer antireflection coating production line according to claim 1, characterized in that: the feeding speed of the feeding machine (100) is 6-10 seconds per sheet.
3. The process method of the photovoltaic glass double-layer antireflection coating production line according to claim 1, characterized in that: the lapping equipment (200) comprises a first double-side lapping machine (210), a steering machine (220) and a second double-side lapping machine (230) which are arranged in sequence; the glass (1) is of a quadrilateral structure, after two opposite edges of the glass (1) are edged in the first double-edge grinding machine (210), the glass (1) is conveyed into the steering machine (220), after the glass (1) is rotated by 90 degrees in the steering machine (220), the glass is conveyed into the second double-edge grinding machine (230), and the other two opposite edges of the glass (1) are edged in the second double-edge grinding machine (230).
4. The process method of the photovoltaic glass double-layer antireflection coating production line according to claim 1, characterized in that: the step of cleaning the glass (1) by the cleaning machine (300) comprises a disc brush cleaning step and a roller brush cleaning step.
5. The process method of the photovoltaic glass double-layer antireflection coating production line according to claim 4, characterized in that: in the disc brush cleaning step, polishing liquid is injected into the disc (310).
6. The process method of the photovoltaic glass double-layer antireflection coating production line according to claim 4, characterized in that: in the dish brush cleaning step, alkaline cleaning agent is injected into the dish (310).
7. The process method of the photovoltaic glass double-layer antireflection coating production line according to claim 4, characterized in that: the roller brush cleaning step adopts three roller brushes for cleaning, warm water with the temperature of 30-50 ℃ is injected in the cleaning process, and three air knives (320) are selected as equipment for cleaning the roller brushes; deionized water is used as cleaning water, and the resistivity is more than or equal to 10 MOmega.
8. The process method of the photovoltaic glass double-layer antireflection coating production line according to claim 1, characterized in that: the temperature in the coating chamber is 20 +/-5 ℃; the humidity inside the film coating chamber is 50% +/-5%; the cleanliness of the coating chamber is as follows: on the order of 10 ten thousand.
9. The process method of the photovoltaic glass double-layer antireflection coating production line according to claim 1, characterized in that: the first layer of curing oven (610) and the second layer of curing oven (620) have the same structure, and the first layer of curing oven (610) comprises a first oven body (611) and a second oven body (612) which are arranged in sequence; the first furnace body (611) and the second furnace body (612) have the same structure; a plurality of heating devices (613) are arranged on the side wall of the interior of the first furnace body (611) from top to bottom; a lifting device is arranged in the first furnace body (611), the lifting device comprises two conveying chains (614), and each conveying chain (614) is provided with a plurality of bearing structures (615) which are arranged from top to bottom in sequence; the inlet of the first furnace body (611) is arranged at the lower part of the first furnace body (611), and the outlet of the first furnace body (611) is arranged at the upper part of the first furnace body (611); the inlet of the second furnace body (612) is arranged at the upper part of the second furnace body (612), the outlet of the second furnace body (612) is arranged at the lower part of the second furnace body (612), and the outlet of the first furnace body (611) is arranged opposite to the inlet of the second furnace body (612); the conveying structure conveys glass (1) into the first furnace body (611) from an inlet of the first furnace body (611), the two lowest receiving structures (615) of the two conveying chains (614) of the first furnace body (611) support the glass (1), the two conveying chains (614) of the first furnace body (611) move to enable the glass (1) to move upwards, when the glass (1) moves to an outlet of the first furnace body (611), the transmission structure drives the glass (1) to sequentially pass through the outlet of the first furnace body (611) and the inlet of the second furnace body (612), the glass (1) enters the second furnace body (612), the two uppermost receiving structures (615) of the second furnace body (612) support the glass (1), the two conveying chains (614) of the second furnace body (612) move to enable the glass (1) to move downwards, after the glass (1) moves to the outlet of the second furnace body (612), the conveying structure moves the glass (1) out of the outlet of the second furnace body (612); when the glass (1) is in the first furnace body (611) and the second furnace body (612), the heating device (613) heats the glass (1).
10. The process method of the photovoltaic glass double-layer antireflection coating production line according to claim 1, characterized in that: when the outlet of the two-layer curing furnace (620) is connected with the toughening furnace through a roller way, the temperature of the two-layer curing furnace (620) is 140-160 ℃; when the outlet of the two-layer curing furnace (620) is transferred through a falling frame, the temperature of the two-layer curing furnace (620) is 190-210 ℃.
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Application publication date: 20220315 |