CN112811832A - Vacuum glass processing method and processing production line - Google Patents
Vacuum glass processing method and processing production line Download PDFInfo
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- CN112811832A CN112811832A CN202110366586.3A CN202110366586A CN112811832A CN 112811832 A CN112811832 A CN 112811832A CN 202110366586 A CN202110366586 A CN 202110366586A CN 112811832 A CN112811832 A CN 112811832A
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- 239000011521 glass Substances 0.000 title claims abstract description 258
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000003672 processing method Methods 0.000 title claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 178
- 238000010438 heat treatment Methods 0.000 claims abstract description 74
- 238000001816 cooling Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000009461 vacuum packaging Methods 0.000 claims abstract description 30
- 238000004806 packaging method and process Methods 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 229910000679 solder Inorganic materials 0.000 claims description 33
- 238000010030 laminating Methods 0.000 claims description 23
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 238000007781 pre-processing Methods 0.000 claims description 7
- 238000010329 laser etching Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000005341 toughened glass Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims 4
- 238000002203 pretreatment Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 10
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 18
- 238000005496 tempering Methods 0.000 description 16
- 238000006073 displacement reaction Methods 0.000 description 8
- 238000011068 loading method Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 6
- 238000001723 curing Methods 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000005340 laminated glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005571 horizontal transmission Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
-
- 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
- C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
- C03C27/06—Joining glass to glass by processes other than fusing
- C03C27/10—Joining glass to glass by processes other than fusing with the aid of adhesive specially adapted for that purpose
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
The invention discloses a vacuum glass processing method and a processing production line, which have reasonable process arrangement, can optimize the processing technology, reduce the energy consumption and simultaneously improve the processing efficiency of vacuum glass, and the processing procedures of the method comprise the following steps: the vacuum glass processing production line comprises a feeding platform, a glass substrate pretreatment assembly, a gluing machine, a baking furnace, a toughening furnace, a buffering platform, a first steering platform, a piece combining platform, a second steering platform, a heating furnace, a vacuum packaging assembly, a cooling furnace, and a detection packaging platform.
Description
Technical Field
The invention relates to the technical field of vacuum glass processing, in particular to a vacuum glass processing method and a processing production line.
Background
The vacuum glass is a novel glass deep processing product developed based on the principle of a vacuum flask, two or more pieces of glass are uniformly separated by a support, the periphery is hermetically sealed, and the inside is pumped to form a vacuum state. The vacuum glass has the advantages of noise reduction, heat preservation, energy conservation, moisture condensation prevention, light weight, long service life and the like, is widely applied to the fields of buildings, green household appliances, transportation and the like, is the most energy-saving building material at present, and is continuously expanded and extended to various industries with super energy conservation and a plurality of unique advantages at present when energy conservation and emission reduction are promoted globally.
At present, the commonly used processing method of vacuum glass is a two-step method or a one-step method, the two-step method production is to seal the periphery of the vacuum glass, and then air is extracted from reserved extraction holes of the glass and sealed, but because the extraction holes are smaller, the inner cavity of the vacuum glass is in a slit shape and has a large area, the vacuum glass needs to be extracted for a long time, and the production period and the yield are seriously influenced. The one-step method is that the sealing and vacuumizing operation of the periphery of two or more pieces of glass are realized in the heating, curing and cooling processes, so that the air pumping time is saved, but during vacuum sealing, the vacuumizing needs to be heated to high temperature for exhausting, the glass substrate is cooled in a vacuum environment after vacuum sealing, the heating and cooling of the glass substrate are slow in the vacuum environment, the cooling time is long, the vacuum processing can be realized only by repeatedly heating and cooling, the existing production equipment is mainly intermittent production, the processing continuity is poor, the problems of unreasonable process arrangement, complex process, easy energy waste caused by repeated heating and cooling and the like exist, and the yield improvement and the cost improvement of the vacuum glass are seriously influenced.
Disclosure of Invention
The invention provides a vacuum glass processing method and a processing production line, aiming at the problems that intermittent production equipment influences the processing continuity of vacuum glass, the working procedure arrangement is unreasonable, the process is complex, the energy is easily wasted, the processing efficiency of the vacuum glass is low and the like in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a vacuum glass processing method for processing a glass substrate, the glass substrate comprising an upper sheet and a lower sheet, the method comprising:
s1, feeding;
s2, preprocessing the glass substrate;
s3, tempering the pretreated glass substrate by using a tempering furnace, heating the glass substrate by using a tempering furnace heating device to raise the temperature of the glass substrate to a softening point, cooling the glass substrate by using a tempering furnace cooling device to reach the physical property of glass tempering, maintaining the higher temperature of the tempered glass substrate as much as possible under the condition of meeting the glass tempering performance, and reducing the energy consumption of heating glass in subsequent production;
s4, coating solder on the upper sheet and the lower sheet respectively;
s5, baking and curing after the solder coating is finished;
s6, baking and solidifying the solder, and laminating the upper sheet and the lower sheet of the glass substrate, wherein supports are arranged on the lower sheet before laminating;
s7, continuously heating the glass substrates after sheet combination by using a heating furnace;
s8, carrying out vacuum packaging on the glass substrate after sheet combination and heating to form the vacuum glass;
s9, cooling the glass substrate after vacuum packaging by using a cooling furnace, so as to facilitate subsequent packaging;
and S10, detecting and packaging the vacuum glass.
It is further characterized in that the method further comprises the steps of,
the glass substrate is low-emissivity coated glass or ultra-white glass;
in step S2, the glass substrate is pretreated, including: s21, cleaning, namely, carrying out surface treatment on the surface of the glass substrate by using a cleaning machine, wherein the temperature of the glass substrate is 30-50 ℃ after the treatment is finished;
s22, code carving, wherein patterns, characters and two-dimensional codes are formed on the surface of the glass substrate by adopting a laser etching method;
in step S3, the temperature of the softening point of the glass substrate is 650 ℃, and the temperature of the cooled glass substrate is kept at 100 ℃;
in step S4, solder is coated on the peripheries of the upper and lower sheets of the glass substrate by a glue spreader;
in step S6, laminating the upper and lower sheets of the glass substrate, i.e., laminating the surfaces of the upper and lower sheets coated with the solder correspondingly; laying a support on the surface of the lower glass substrate coated with the solder, turning the upper glass substrate and then placing the upper glass substrate on the lower glass substrate, and attaching the surface of the upper glass substrate coated with the solder and the surface of the lower glass substrate coated with the solder together, wherein the peripheries of the two glass substrates are aligned;
in step S7, the heating furnace is a convection heating furnace, the glass substrates after sheet combination are continuously heated to 250 ℃ by the convection heating furnace, and the convection heating furnace is heated by hot air circulation convection;
in step S8, the vacuum sealing refers to performing vacuum sealing (press sealing) operation on the heated glass substrate under a vacuum condition;
in the step S9, the cooling furnace is a convection cooling furnace, the temperature of the vacuum glass product after being sealed is gradually reduced from 300 ℃ to 100 ℃ by adopting the convection cooling furnace, and the vacuum glass is subjected to gradient cooling by adopting convection air circulation in the convection cooling furnace;
in the step 10, the detection table detects whether the quality of the vacuum glass is qualified by adopting a sound insulation detection method or a heat conduction instrument detection method, and qualified products can be packaged as finished products.
A production line for realizing the vacuum glass processing method comprises a feeding table for feeding glass substrates, and is characterized in that the feeding table is sequentially connected with a glass substrate pretreatment assembly, a toughening furnace, a glue spreader, a baking furnace, a buffer storage table, a first steering table, a sheet combining table, a second steering table, a heating furnace, a vacuum packaging assembly, a cooling furnace and a detection packaging table, wherein the feeding table, the glass substrate pretreatment assembly, the toughening furnace, the glue spreader, the baking furnace, the buffer storage table, the first steering table, the sheet combining table, the second steering table, the heating furnace, the vacuum packaging assembly, the cooling furnace and the detection packaging table are arranged in a U shape; the glass substrate processing device comprises a feeding table, a glass substrate preprocessing assembly, a tempering furnace, a glue spreader, a baking furnace, a buffering table, a first turning table, a second turning table, a support distributing table, a second turning table and a glue combining table, wherein the feeding table is used for feeding the glass substrates, the glass substrate preprocessing assembly is used for cleaning and coding the glass substrates, the tempering furnace is used for sequentially tempering the preprocessed glass substrates, the glue spreader is used for coating peripheral solders on the upper sheet and the lower sheet of the glass substrates, the baking furnace is used for heating and curing the solder coated on the glass substrates, the buffering table is used for storing the glass substrates, the first turning table is used for turning and transporting the glass substrates on the buffering table to the next procedure, the sheet combining table is used for combining the upper sheet and the lower sheet of the glass substrates, the support distributing table is used for distributing supports on the lower sheets of the two glass substrates, the second turning table is used for turning and transporting the combined glass substrates, the heating furnace is used for preheating the glass substrate after the glass substrate is combined, the vacuum packaging assembly is used for packaging the heated glass substrate in a vacuum environment, the cooling furnace is used for cooling the glass substrate after vacuum packaging, and the detection packaging table is used for detecting and packaging the glass substrate.
It is further characterized in that the method further comprises the steps of,
the feeding table is a glass loading machine;
the glass substrate pretreatment assembly comprises the cleaning machine and a code carving machine;
the toughening furnace is used for toughening the pretreated glass substrate, the heating temperature of the toughening furnace is controlled, so that the temperature of the glass substrate is raised to a softening point, and then the temperature is reduced to reach the characteristic of toughened glass. The temperature of the glass substrate after cooling is about 100 ℃; the baking oven is an electric baking oven, and a heat source of the electric baking oven is a tubular resistance heater;
the gluing machine is used for respectively coating the peripheries of the upper piece and the lower piece of the glass substrate with welding fluxes;
the oven heats the glass substrate coated with the solder until the solder is solidified;
the cache table is used for temporarily caching 6-10 layers of glass substrates during production failure;
the first steering table and the second steering table are both corner transmission tables;
a positioning table, the sheet combining table, a support distributing table and a lifting table are sequentially arranged between the first steering table and the second steering table; the arrangement table is used for pre-positioning the position of each glass substrate, the support distribution table comprises a lifting transmission mechanism and a horizontal transmission mechanism and is used for distributing supports on the lower pieces of the glass substrates, and the lifting table is used for returning and lifting the tray bearing the glass substrates to the sheet combination table;
the heating furnace is a convection heating furnace and comprises a plurality of correspondingly distributed air heaters for preheating the glass substrate before entering the vacuum packaging assembly;
the vacuum packaging assembly comprises a vacuum heating chamber, and the vacuum degree of the vacuum heating chamber is kept at 5 x 10-1Pa～5×10-3Within the range of Pa;
the convection cooling furnace comprises a plurality of air boxes which are sequentially communicated, a fan is arranged in each air box, and the temperature of convection air in each air box is sequentially reduced;
the outlet end of the convection cooling furnace is provided with a descending table and a sheet taking table, the descending table is connected with the lifting table and used for descending and conveying the tray to the lifting table, and the sheet taking table is used for taking out the vacuum glass after being packaged and cooled from the glass tray and conveying the vacuum glass to the next procedure.
By adopting the structure of the invention, the following beneficial effects can be achieved: 1. the glass substrate is processed into the vacuum glass through the steps S1-S9, the glass substrate is dried and insulated in the whole process before vacuum packaging, and the glass substrate does not have the chance of absorbing moisture any more, so that the air extraction time of the vacuum glass is greatly shortened.
2. Before the glass substrate after the laminating is subjected to vacuum packaging, the glass substrate is preheated to be close to the high-temperature sealing temperature, so that when the glass substrate enters the vacuum packaging processing step, the heating time of the glass substrate in a vacuum environment can be greatly shortened, the problem that the glass substrate is slowly heated in the vacuum environment is avoided, the processing technology is optimized, the energy consumption is reduced, and the processing efficiency of the vacuum glass is improved.
Drawings
FIG. 1 is a flow chart of the present invention for processing vacuum glass;
FIG. 2 is a plan view of the vacuum glass processing apparatus of the present invention;
FIG. 3 is a schematic front view of a transmission table according to the present invention;
FIG. 4 is a schematic top view of a transfer table according to the present invention;
FIG. 5 is a schematic top view of the positioning table of the present invention.
Detailed Description
Referring to fig. 2 to 5, a vacuum glass processing production line comprises a feeding table 1 for feeding glass substrates, wherein the feeding table 1 is sequentially connected with a glass substrate pretreatment assembly 2, a toughening furnace 5, a glue spreader 3, a baking furnace 4, a buffer table 6, a first steering table 7, a laminating table, a support distribution table 8, a second steering table 9, a heating furnace 10, a vacuum packaging assembly 11, a cooling furnace 12 and a detection packaging table 13, and the feeding table 1, the glass substrate pretreatment assembly 2, the glue spreader 3, the baking furnace 4, the toughening furnace 5, the buffer table 6, the first steering table 7, the laminating table, the support distribution table 8, the second steering table 9, the heating furnace 10, the vacuum packaging assembly 11, the cooling furnace 12 and the detection packaging table 13 are arranged in a U shape. The glass substrate pretreatment assembly 2 comprises a cleaning machine 21 and a code carving machine 22 which are connected in sequence, the vacuum packaging assembly 11 comprises a vacuum heating chamber and a press sealing chamber, the detection packaging table 13 comprises a detection table and a packaging area, and the outlet end of the cooling furnace 12 is connected with a descending table 131, a sheet taking table 132, a detection table 133 and a packaging area 134 in sequence.
The glass substrate tempering furnace comprises a feeding platform, a glass substrate pretreatment assembly, a tempering furnace 3, a glue spreader 4, a baking furnace 5, a cache platform 6, a first turning platform 7, a second turning platform 9, a heating furnace 10, a vacuum packaging assembly 11, a cooling furnace 12, a storage box 6, a buffer platform 6, a first transfer platform 7, a second transfer platform 9, a heating furnace 10, a vacuum packaging assembly 11, a vacuum packaging assembly 12, a vacuum packaging furnace 12 and a cooling furnace 12, the detection packaging table 13 is used for detecting and packaging the glass substrate.
Referring to fig. 1, a method for processing vacuum glass by using the production line is used for processing a glass substrate, wherein the glass substrate is low-emissivity coated glass or ultra-white glass and comprises an upper sheet and a lower sheet, and the method comprises the following steps:
s1, feeding;
s2, preprocessing the glass substrate;
s3, tempering the pretreated glass substrate by using a tempering furnace, heating to raise the temperature of the glass substrate to a softening point, and then cooling to completely temper the glass substrate;
s4, coating solder on the peripheries of the upper sheet and the lower sheet respectively;
s5, baking and curing after the solder coating is finished;
s6, combining the upper and lower sheets of the glass substrate, and laying a support before combining the sheets;
s7, continuously heating the laminated glass substrate by a heating furnace;
s8, carrying out vacuum packaging on the glass substrate after sheet combination and heating to form vacuum glass;
s9, cooling the glass substrate after vacuum packaging by using a cooling furnace, so as to facilitate subsequent packaging;
and S10, detecting the vacuum glass and packaging.
In step S1, the glass substrate is fed through the feeding table 1, where the feeding table 1 is a glass loading machine commonly used in the prior art and is used for feeding the glass substrate, and if the glass substrate is low-emissivity coated glass, the coated surface needs to be sealed on the vacuum side of the vacuum glass. The glass loading machine is in the prior art and comprises a plurality of glass substrate storage racks, wherein the glass substrates are placed on the storage racks in batches; this glass loading machine still includes automatic feeding mechanism, a substrate for will put immediately is absorb and rotatory to the material loading transmission bench, material loading transmission platform (see fig. 3, fig. 4) is including transmission roller 101, process a plurality of half slots 102 (or square groove) above the transmission roller 101, the rubber pad 103 is equipped with to half slot 102 (or square groove) embedded, the glass substrate surface is scotched by the transmission roller 101 of metal when the setting of rubber pad has prevented the transmission, the both sides end of transmission roller 101 is fixed with and transmits roller 101 vertically direction fender wheel 105, the glass substrate off tracking when the transmission has been prevented, the both sides of transmission roller 102 are provided with interval distribution's displacement sensor 104, displacement sensor 104 is used for detecting glass substrate's positional information.
In step S2, the glass substrate is pretreated by the glass substrate pretreatment module 2, and in step S2, the pretreatment of the glass substrate includes: s21, cleaning, namely, treating the surface of the glass substrate by using the existing cleaning machine, wherein the temperature of the glass substrate is 30-50 ℃ after the treatment is finished;
and S22, carving codes, wherein patterns, characters and two-dimensional codes are formed on the surface of the glass substrate by adopting the existing code carving machine through a laser etching method.
In step S3, a tempering furnace in the prior art is adopted to temper the heated glass substrate, the temperature is raised to a softening point (about 650 ℃) after the glass substrate enters the tempering furnace, then the two sides of the glass substrate are simultaneously blown and cooled, the glass substrate is discharged after the temperature is reduced to the temperature requirement of the tempering process, the final temperature of the glass substrate is kept at about 100 ℃ and is not cooled to be too low, the temperature is maintained in the subsequent process, the situation that the surface of the glass absorbs moisture is avoided, and the glass substrate is beneficial to entering a vacuum cavity and then is vacuumized and exhausted;
in step S4, a glass substrate is coated with solder and a getter placement frame line by using a coater (or a coater robot) in the prior art, the two coaters are respectively used for coating peripheral solder on an upper piece and a lower piece of the glass substrate, the solder grooves of the upper piece and the lower piece are matched with each other, the getter placement frame line is coated at the edge position of the lower piece of glass, and the two coaters 3 respectively coat the solder on the upper piece and the lower piece, thereby increasing the coating speed and saving the coating time.
In step S5, after the solder is coated, the solder is baked and cured by using an existing oven, the oven 4 is an existing electric oven, a heat source of the electric oven is an infrared electric heating tube, the infrared electric heating tube is used for heating the solder area, and the glass substrate is also heated by radiation to raise the temperature when the solder is heated and cured.
In step S6, the first and second turning tables are corner transmission tables, and a placement table 701, a sheet combining table, a support placing table 8, and a lifting table 702 are sequentially disposed between the first and second turning tables; the glass substrate after the solder solidification is conveyed to the buffer stage 6, and the buffer stage 6 can convey the glass or store a plurality of pieces of glass. Normally, the glass substrate after the solder solidification is conveyed to the first corner table 7, and when the subsequent working section has a fault, the glass substrate processed in the previous section is continuously conveyed to the buffer table 6 (the buffer table 6 is the prior art) and is buffered. The corner transmission table is positioned at the corner of the buffer table 6 and the ranking table 701 and is used for conveying the softened glass substrates on the buffer table 6 to the ranking table 701 for position adjustment, the ranking table 701 is used for pre-positioning the position of each glass substrate to ensure that the front and back positions of the glass substrates entering the laminating table 8 are accurate, the ranking table 701 adopts the existing positioning and conveying device and comprises a conveying roller 101 for conveying the glass, a displacement sensor 104 arranged on the conveying roller 101 and a limiting mechanism, the limiting mechanism comprises a side baffle 106, the side baffle 106 is driven by a cylinder 107, a rubber pad is fixed at the front end of the baffle (the rubber pad corresponds to the front end of the glass substrate (see figure 5), when the side baffle 106 is blocked on the side end face of the glass substrate a, the rubber pad is used for preventing the glass substrate a from being collided and damaged), the position of the glass substrate is detected by the displacement sensor 104, when the glass substrate moves to the position of the displacement, the displacement sensor 104 is triggered to send a signal to the controller, the controller controls the cylinder to start, and the cylinder drives the side baffle plates to move and block the two sides of the glass substrate a, so that the effect of accurately pre-positioning the position of each glass substrate is achieved, and the accuracy of the front position and the rear position of the glass substrate entering the laminating table is ensured; the laminating table is used for laminating an upper sheet and a lower sheet of a glass substrate, the laminating table 8 can adopt the existing laminating device, the laminating device comprises an overturning transmission table and an adsorption device, when the laminating table and a support distribution table 8 are adopted for laminating the upper sheet and the lower sheet of the glass substrate, the upper sheet is overturned by a displacement table through the overturning transmission table and is transmitted to the position of the laminating table, the upper sheet is suspended above the laminating table through the adsorption of a sucking disc of the adsorption device, the lower sheet is sequentially transmitted to the laminating table and the support distribution table through the displacement table, the support is distributed on the upper surface of the upper sheet through the support distribution table in the prior art, the lower sheet on which the support is distributed is transmitted back to the laminating table, and the upper sheet is placed on the lower sheet to realize the lamination of the upper sheet and the lower sheet; the lifting table 702 is used for returning and lifting the tray carrying the glass substrate to the sheet combining table 8, and the lifting table 702 can adopt the existing returning device; the support distribution table 8 can adopt the existing high-temperature-resistant online vacuum glass support distribution transmission table, the second steering table 9 is used for steering and transporting the laminated glass substrate to the heating furnace 10, the heating furnace 10 is a convection heating furnace commonly used in the prior art, the convection heating furnace is adopted to continuously heat the laminated glass substrate to 250 ℃, the heating at the position is realized on the basis of maintaining the residual temperature of 100 ℃ after the heating and curing of the coating solder, the hot air circulation convection heating is realized, and the heating efficiency is high.
In step S8, the vacuum package assembly 11 includes a vacuum heating chamber, the vacuum heating chamber is used for packaging the heated glass substrate in a vacuum environment, the vacuum heating chamber is connected to a vacuum pump, and the vacuum heating chamber is vacuumized by the vacuum pump to maintain the vacuum degree in the vacuum heating chamber at 5 × 10-1Pa～5×10-3Pa, conveying the glass substrate heated to 250 ℃ into a vacuum heating chamber, continuously heating the glass substrate in a vacuum environment, heating the glass substrate to 400 ℃ at the temperature of 5 multiplied by 10-3And (3) pressing and sealing the two glass substrates into a vacuum glass product under the Pa vacuum. A heat insulation pipeline is arranged between the convection heating furnace 10 and the vacuum heating chamber, when the glass substrate is conveyed to the vacuum heating chamber from the heating furnace 10, the vacuum chamber needs to be emptied, and high-temperature gas can be filled into the vacuum chamber through the heat insulation pipeline. The heated glass substrate is prevented from being burst due to the impact of low-temperature gas, and the heating time in the vacuum heating chamber in the vacuum environment is saved. Vacuum heatingThe outlet end of the hot chamber is provided with a press seal chamber 110 for compacting the solder pre-sealed around the glass, which may be by known press seal techniques.
In step S9, the vacuum glass after press sealing is conveyed from the press sealing chamber 110 to a convection cooling furnace, the convection cooling furnace includes a plurality of bellows that are sequentially connected, the structure of each bellows in the convection cooling furnace is substantially the same as that of the convection heating furnace, a blower is installed in each bellows, and the circulating air temperature of the blower in each bellows is sequentially reduced, and the circulating air is sequentially blown across the surface of the glass by convection, so that the vacuum glass after press sealing is gradually cooled, thereby avoiding the problem of long cooling time caused by cooling under vacuum conditions, and reducing energy loss. The temperature of the packaged vacuum glass is cooled from 300 ℃ to 100 ℃ after passing through a convection cooling furnace.
In step S10, a descending table, a pickup table, a detection table, and a packaging table are sequentially installed at an outlet end of the convection cooling furnace, the descending table is connected with the return table after descending for descending and transmitting the tray to the return table, the pickup table is used for taking out and transmitting the vacuum glass placed on the tray to the next process, the descending table adopts the existing lifting transmission device for downward conveying the material, the tray or the equipment, the pickup table adopts the existing vacuum adsorption mechanism (or vacuum adsorption robot) to transfer the vacuum glass after packaging to the detection table, the detection table can adopt the existing vacuum glass sound insulation detector or heat conduction detector to detect the vacuum glass, and can also adopt manual visual detection on the quality of the vacuum glass, and the packaging table is used for packaging the vacuum glass.
The feeding platform, the glass substrate preprocessing assembly, the toughening furnace, the glue spreader, the baking furnace, the buffer storage platform, the first turning platform, the laminating platform and the support distribution platform are included in the glass processing production line, the second turning platform, the heating furnace, the vacuum packaging assembly, the cooling furnace and the detection packaging platform are arranged in a U shape, the distribution and installation are convenient, the space area occupation is saved, and the vacuum glass turning conveying is realized by the arrangement of the first turning platform and the second turning platform.
The above is only a preferred embodiment of the present application, and the present invention is not limited to the above embodiments. It is to be understood that other modifications and variations directly derivable or suggested by those skilled in the art without departing from the spirit and concept of the present invention are to be considered as included within the scope of the present invention.
Claims (10)
1. A vacuum glass processing method for processing a glass substrate, the glass substrate comprising an upper sheet and a lower sheet, the method comprising: s1, feeding;
s2, preprocessing the glass substrate;
s3, sequentially heating and cooling the pretreated glass substrate by using a toughening furnace, heating to raise the temperature of the glass substrate to a softening point, and then cooling by using the residual temperature of the toughening furnace and keeping the temperature balance of the glass substrate;
s4, coating solder on the upper sheet and the lower sheet respectively;
s5, baking and curing after the solder coating is finished;
s6, baking and solidifying the solder, and laminating the upper sheet and the lower sheet of the glass substrate, wherein supports are arranged on the lower sheet before laminating;
s7, continuously heating the glass substrates after sheet combination by using a heating furnace;
s8, carrying out vacuum packaging on the glass substrate after sheet combination and heating to form the vacuum glass;
s9, cooling the glass substrate after vacuum packaging by using a cooling furnace;
and S10, detecting and packaging the vacuum glass.
2. The vacuum glass processing method of claim 1, wherein the step S2 of pre-treating the glass substrate comprises: s21, washing, namely washing the surface of the glass substrate by using a washing machine, wherein the temperature of the glass substrate is 30-50 ℃ after the washing is finished;
and S22, carving codes, and forming patterns, characters and two-dimensional codes on the surface of the glass substrate by adopting a laser etching method.
3. The vacuum glass processing method according to claim 2, wherein in step S3, the temperature of the softening point is 650 ℃, and the temperature of the glass substrate after temperature reduction is maintained at 100 ℃.
4. The vacuum glass processing method of claim 3, wherein in step S4, a coater is used to coat the solder on the surface of the glass substrate.
5. The vacuum glass processing method according to claim 4, wherein in step S7, the heating furnace is a convection heating furnace, the glass substrates after sheet combination are continuously heated to 250 ℃ by using the convection heating furnace, and the convection heating furnace is heated by hot air circulation convection.
6. The vacuum glass processing method according to claim 5, wherein in step S8, the vacuum sealing is performed on the heated glass substrate under a vacuum condition.
7. The vacuum glass processing method according to claim 6, wherein in step S9, the cooling furnace is a convection cooling furnace, and the glass substrate after vacuum packaging is cooled by the convection cooling furnace so that the temperature of the glass substrate after vacuum packaging is reduced from 300 ℃ to 100 ℃.
8. A vacuum glass processing production line, the production line uses the vacuum glass processing method of claim 1 or 7, the production line includes a feeding platform for glass substrate feeding, characterized in that the feeding platform is connected with a glass substrate pretreatment component, a toughening furnace, a glue spreader, a baking furnace, a buffer storage platform, a first steering platform, a sheet combining platform, a support distribution platform, a second steering platform, a heating furnace, a vacuum packaging component, a cooling furnace and a detection packaging platform in sequence, the feeding platform, the glass substrate pretreatment component, the toughening furnace, the glue spreader, the baking furnace, the buffer storage platform, the first steering platform, the sheet combining platform, the support distribution platform, the second steering platform, the heating furnace, the vacuum packaging component, the cooling furnace and the detection packaging platform are arranged in a U shape; the glass substrate pre-treatment assembly is used for cleaning and coding the glass substrate, the glue spreader is used for coating solder on the peripheries of an upper piece and a lower piece of the glass substrate, the oven is used for heating and solidifying the solder on the glass substrate coated with the solder, the toughening furnace is used for sequentially and continuously heating and cooling the heated glass substrate, the cache table is used for storing the tempered glass substrate, the first turning table is used for turning and transporting the glass substrate transmitted by the cache table to the next procedure, the combining table is used for combining the upper piece and the lower piece of the glass substrate, the second turning table is used for turning and transporting the combined glass substrate to the next procedure, and the heating furnace is used for heating the combined glass substrate, the vacuum packaging assembly is used for packaging the heated glass substrate in a vacuum environment, the cooling furnace is used for cooling the glass substrate after vacuum packaging, and the detection packaging table is used for detecting and packaging the glass substrate.
9. The vacuum glass processing line of claim 8, wherein the glass substrate pre-processing assembly comprises the washer and the indexer.
10. The vacuum glass processing line of claim 9, wherein the vacuum enclosure assembly comprises a vacuum chamber maintained at a vacuum level of 5 x 10-1Pa～5×10-3In the Pa range.
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| CN113979651A (en) * | 2021-11-10 | 2022-01-28 | 沃米真玻科技(北京)有限公司 | Full-flow continuous automatic production line for vacuum glass |
| CN114014561A (en) * | 2021-12-01 | 2022-02-08 | 南京苏洋玻璃有限公司 | Coating vacuum cavity welding auxiliary equipment for LOW-E glass production |
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