CN115745430A

CN115745430A - Full-automatic vacuum sealing device for vacuum glass

Info

Publication number: CN115745430A
Application number: CN202211528909.5A
Authority: CN
Inventors: 蔡邦辉; 彭文钢; 姜宏; 颜玉洪; 林孙云; 王国焦; 陈政; 于满仓
Original assignee: Sichuan Yingnuowei New Material Technology Co ltd
Current assignee: Sichuan Yingnuowei New Material Technology Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-03-07

Abstract

The invention relates to the technical field of vacuum glass vacuum sealing, and discloses a full-automatic vacuum sealing device for vacuum glass, which comprises a control unit, a vacuum unit and a conveying unit, wherein the conveying unit comprises an upper conveying line group and a lower conveying line group which are parallel; the vacuum unit comprises a vacuum cavity, an upper conveying line group and a lower conveying line group are arranged in the vacuum cavity, and sliding doors are arranged at the two ends of the vacuum cavity corresponding to the upper conveying line group and the lower conveying line group; the vacuum cavity is provided with an air exhaust part, and a grabbing clamp and a sealing part are arranged in the vacuum cavity. According to the scheme, the vacuum cavity is arranged, so that two pieces of plate glass of the vacuum glass can be sealed in a complete glass structure under a vacuum environment, the extraction holes do not need to be formed in the plate glass, the increase of the vacuum glass breaking risk caused by the fact that the extraction holes are formed in the existing vacuum glass is effectively avoided, and the product safety of the vacuum glass is effectively improved.

Description

Full-automatic vacuum sealing device for vacuum glass

Technical Field

The invention relates to the technical field of vacuum glass vacuum sealing, in particular to a full-automatic vacuum sealing device for vacuum glass.

Background

The vacuum glass is a transparent and energy-saving green building material, integrates the technical advantages of coated glass and hollow glass, has superior performances in the aspects of heat preservation, heat insulation, dewing prevention, sound insulation, wind pressure resistance and the like, forms super energy-saving glass, is widely applied in multiple fields, and has very wide development prospect. In the manufacturing process of the vacuum glass, the key technology is how to form and maintain the vacuum atmosphere between two pieces of flat glass.

In order to solve the above problems, the following two techniques are mainly adopted for forming the vacuum environment inside the vacuum glass at present: (1) Reserving an air extraction opening with the thickness of about 0.5-2mm at one corner of one piece of flat glass, performing vacuum air extraction on the two pieces of vacuum glass after sealing, so as to remove gas in the glass, and plugging the air extraction opening after air extraction is completed, so that an approximate vacuum environment is formed in the vacuum glass; (2) And (3) placing the glass which is sealed and provided with the exhaust hole in a vacuum environment, slowly exhausting the gas in the glass, and finally plugging the exhaust hole.

Although the prior art can form a better vacuum environment between two pieces of flat glass, the following technical problems still exist:

(1) In the prior art, an air suction port is reserved at one corner of glass, but the air suction port damages the glass structure to increase the defects of the glass, so that the vacuum glass is easy to break;

(2) In the prior art, the manufacturing of the vacuum environment in the vacuum glass is finished in a hole opening-air extraction-hole blocking mode, and the production process is complex and tedious;

(3) In the prior art, the reserved extraction opening can be blocked after air extraction is finished, but the risk of air leakage is invisibly increased, if the blockage is incomplete or the extraction opening is damaged during the blockage, the vacuum glass can be invalid, and the quality guarantee period of the vacuum glass is shortened;

(4) The reserved pumping hole in the prior art is very small, so that the speed of pumping is very low, and the required vacuum degree is often reached, and the pumping needs to be carried out for several hours, so that the production efficiency is low;

(5) The vacuum glass sealing of the prior art cannot form a continuous automatic production mode.

Disclosure of Invention

The invention aims to provide a full-automatic vacuum sealing device for vacuum glass, which aims to solve the technical problem that the breaking risk of the vacuum glass is increased due to the fact that an air extraction opening is formed in the conventional vacuum glass sealing.

In order to achieve the purpose, the invention adopts the following technical scheme: a full-automatic vacuum sealing device for vacuum glass comprises a control unit, a vacuum unit and a conveying unit, wherein the conveying unit comprises an upper conveying line group and a lower conveying line group which are parallel; the vacuum unit comprises a vacuum cavity, an upper conveying line group and a lower conveying line group are arranged in the vacuum cavity, and sliding doors are arranged at the two ends of the vacuum cavity corresponding to the upper conveying line group and the lower conveying line group; the vacuum cavity is provided with an air exhaust part, and a grabbing clamp and a sealing part are arranged in the vacuum cavity;

the control unit comprises a controller which is electrically connected with the sliding door, the upper conveying line group, the lower conveying line group, the air exhaust part, the grabbing clamp and the sealing part.

The principle of the scheme is as follows:

two sheet glass of this scheme preparation vacuum glass are called glass and lower glass respectively, go up glass's lower surface and have plated the metallization all around, lower glass's upper surface has plated the metallization layer with the same size on the glass, and lower glass's metallization layer surface covering has the solder strip, and the non-metallization layer region on lower glass upper surface has arranged a plurality of supporters simultaneously. In the scheme, the upper glass is conveyed on the upper conveying line group, and the lower glass and the vacuum glass are conveyed on the lower conveying line group; the upper glass and the lower glass are respectively and synchronously conveyed into the vacuum cavity by the upper conveying line group and the lower conveying line group, the sliding doors at two ends of the vacuum cavity are closed, and the controller can manufacture the vacuum cavity into a vacuum environment by controlling the air exhaust part to exhaust the vacuum cavity. And finally, the controller controls the sealing part to carry out vacuum sealing on the upper glass and the lower glass to form the vacuum glass.

The scheme has the advantages that:

1. the manufacturing of the internal vacuum environment of the vacuum glass depends on the air exhaust hole to easily promote the broken risk of the vacuum glass, and the vacuum cavity is arranged, so that two pieces of plate glass of the vacuum glass can be sealed by a complete glass structure under the vacuum environment, the air exhaust hole does not need to be formed in the plate glass, the broken risk of the vacuum glass is effectively prevented from being increased due to the fact that the air exhaust hole is formed in the existing vacuum glass, and the product safety of the vacuum glass is effectively improved.

2. Compared with the prior art that the vacuum glass needs to be pumped after being sealed so as to maintain the vacuum environment inside the vacuum glass, the two pieces of plate glass do not need to be pumped after being sealed into the vacuum glass in the scheme, and the production process is simpler; and because the production process of the vacuum glass does not need to plug the air exhaust port, the condition that the vacuum glass fails due to untight plugging of the air exhaust port or air leakage of the air exhaust port is effectively avoided, the quality of the vacuum glass is obviously improved, and the quality guarantee period of the vacuum glass is prolonged.

3. Compared with the prior art that the production efficiency of the vacuum glass is low due to the fact that the pumping speed is low because the pumping hole of the existing vacuum glass is small, the scheme is that the upper glass and the lower glass are independently conveyed into the vacuum cavity by arranging the upper conveying line group and the lower conveying line group, the upper glass and the lower glass are overlapped after the vacuum cavity forms a vacuum environment, the gap between the upper glass and the lower glass is the vacuum environment, and the upper glass and the lower glass can be sealed and connected into the vacuum glass by melting the solder strip; the process is cheap in operation, short in time consumption and good in vacuum degree of the vacuum glass after being sealed, so that the sealing quality of the vacuum glass is effectively improved, and the quality guarantee period of the vacuum glass is prolonged. The applicant experiments find that the vacuum sealing of the vacuum glass in the scheme only needs 3-15min, which is obviously shorter than the required time of the sealing and air exhaust processes of the existing vacuum glass, thereby effectively improving the production efficiency of the vacuum glass.

Preferably, two clapboards are arranged in the vacuum cavity, the two clapboards divide the vacuum cavity into a cleaning vacuum cavity, a sealing vacuum cavity and a buffering vacuum cavity, and sliding doors are arranged at positions of the clapboards corresponding to the upper conveying line group and the lower conveying line group; the grabbing clamp and the sealing part are both positioned in the sealing vacuum cavity.

Has the advantages that: this scheme is divided into three loculus with the vacuum cavity through setting up two baffles, is convenient for clean and seal-in under vacuum environment, and the clean vacuum cavity and the buffering vacuum cavity of sealing-in vacuum cavity both sides are vacuum environment simultaneously, further guarantee vacuum glass's vacuum sealing-in, avoid vacuum environment destruction and reduce vacuum glass's after the sealing-in vacuum in the sealing-in process vacuum to promote vacuum sealing-in quality, prolong vacuum glass shelf life.

Preferably, the grabbing fixture comprises a longitudinal telescopic rod and a transverse telescopic rod group which are fixedly connected, one end, far away from the transverse telescopic rod group, of the longitudinal telescopic rod is fixed to the top wall of the sealing vacuum cavity, the transverse telescopic rod group comprises four transverse telescopic rods fixed in a cross manner, grabbing heads are arranged at the tail ends of the four transverse telescopic rods, and cross fixing points of the four transverse telescopic rods are fixedly connected with the longitudinal telescopic rod.

Has the beneficial effects that: this scheme is through combination application vertical telescopic link and horizontal telescopic link group for go up glass and lower glass counterpoint laminating under the effect of snatching anchor clamps, thereby simplify glass and lower glass's laminating step, promote glass and lower glass's laminating efficiency, thereby promote vacuum glass production efficiency.

Preferably: the vacuum cleaning chamber, the sealing vacuum chamber and the buffer vacuum chamber are respectively provided with an air exhaust part, and the air exhaust parts comprise air exhaust holes positioned on the side walls of the vacuum cleaning chamber, the sealing vacuum chamber and the buffer vacuum chamber, air exhaust parts connected outside the air exhaust holes through pipelines and air exhaust valves arranged on the connecting pipelines; the cleaning vacuum cavity is also provided with an air inlet part and a cleaning part; the air inlet part comprises an air inlet hole, an air inlet piece connected outside the air inlet hole through a pipeline and an air inlet valve arranged on the connecting pipeline, and the air extracting valve and the air inlet valve are electrically connected with the controller.

Has the advantages that: this scheme sets up the portion of bleeding and is convenient for build vacuum environment for the different cavities of vacuum cavity. This scheme is through setting up clean portion and the portion of admitting air, is convenient for further clean the ash removal to last glass surface and lower glass surface before vacuum glass seals, effectively avoids connecting the fine dust seal of glass surface inside vacuum glass and reduce vacuum glass's vacuum and quality.

Preferably: the sealing part comprises a sealing track group and a sealing heating element which is connected to the sealing track group in a sliding manner; the sealing track group comprises an X-axis guide rail, a Y-axis guide rail connected to the X-axis guide rail in a sliding manner, and a Y-axis motor driving the Y-axis guide rail to slide, the sealing heating element comprises a heating head connected to the Y-axis guide rail in a sliding manner and a sealing motor driving the heating head to slide, and the heating head, the Y-axis motor and the sealing motor are all electrically connected with the controller.

Has the beneficial effects that: this scheme is through setting up vertically sealing-in track, and the heating head of being convenient for can remove and carry out continuous heating to the solder strip along the orbit on metallization layer, and the vacuum sealing of being convenient for goes on in succession.

Preferably, the device also comprises a positioning unit, a preheating unit and a recovery unit which are arranged along the conveying direction, and the vacuum cavity is positioned between the preheating unit and the recovery unit; the upper conveying line group comprises a plurality of upper conveying lines which are connected end to end, the lower conveying line group comprises lower conveying lines which are equal to the upper conveying lines in number, and the lower conveying lines are connected end to end; the upper conveying line is correspondingly provided with an upper conveying driving part, the lower conveying line is correspondingly provided with a lower conveying driving part, and the upper conveying driving part and the lower conveying driving part are both electrically connected with the controller; an upper transmission line and a lower transmission line are arranged in the alignment unit, the preheating unit, the cleaning vacuum cavity, the sealing vacuum cavity, the buffering vacuum cavity and the recovery unit, and the upper transmission line in the sealing vacuum cavity is a sealing upper transmission line.

Has the advantages that: according to the scheme, the upper conveying lines and the lower conveying lines are arranged in an end-to-end connection mode, so that the upper glass and the lower glass are independently conveyed to pass through the alignment unit, the preheating unit and the cleaning vacuum cavity and are vacuum-sealed into the vacuum glass in the sealing vacuum cavity, and then the vacuum glass is conveyed to the discharging conveying lines under the action of the recovery unit; the conveying lines in each unit are independently driven, so that the sectional treatment and the continuous conveying of the upper glass and the lower glass are conveniently realized.

Preferably, the sealing upper conveying line comprises two parallel upper conveying rails, a plurality of short conveying rollers are respectively and rotatably connected to the two upper conveying rails, the end parts of the short conveying rollers are coaxially connected with conveying gears, and a conveying chain is connected between the conveying gears; the discharge ends of the two upper conveying tracks are rotatably connected with the same long conveying roller which is fixedly connected with an upper conveying driving part; a tray is placed on the upper conveying line, and the upper glass is placed on the tray and conveyed along with the tray; the distance between the short conveying rollers on the two upper conveying tracks is smaller than the width of the tray and larger than the width of the upper glass; the upper conveying line and the lower conveying line except for the sealed upper conveying line comprise two parallel lower conveying rails, a plurality of lower conveying rollers are rotatably connected between the two upper conveying rails, the end parts of the lower conveying rollers are coaxially connected with conveying gears, and conveying chains are connected between the conveying gears; and a lower conveying roller positioned at the discharge end of the lower conveying line is fixedly connected with the lower conveying driving part, and the lower glass is placed on the lower conveying roller for conveying.

Has the beneficial effects that: according to the scheme, the upper conveying line comprises two conveying rails with a certain distance, the tray is used for assisting in conveying the upper glass, when the upper glass and the lower glass are required to be overlapped and placed, the upper glass is grabbed by the grabbing clamp through sequential operation, the tray is moved away, the grabbing clamp vertically descends, and the upper glass can be moved to the upper surface of the lower glass, so that the upper glass and the lower glass can be stacked quickly, and preparation is made for vacuum sealing. Compared with the prior art that the upper glass and the lower glass can be stacked only by turning the upper glass or grabbing and moving the upper glass for multiple times before sealing, the scheme can be used for rapidly stacking the upper glass on the lower glass by skillfully arranging the structure of the upper conveying line, so that the moving time of the upper glass before sealing is effectively saved, and the sealing efficiency is further improved, and the applicant experiments find that the sealing time in the scheme only needs 3-15 min; in addition, the upper glass does not need to be turned for many times before sealing, and the upper glass and the lower glass which are aligned in advance are effectively prevented from being aligned again due to turning/moving dislocation, so that the stacking efficiency is improved.

Preferably, the preheating unit includes preheating the chamber, preheats the intracavity and is equipped with to preheat and goes up the transfer line, preheat down transmission line and heating plate group, heating plate group includes three-layer electric heating board, and three-layer electric heating board is located preheating chamber roof, preheating chamber diapire respectively and goes up the transfer line and descend between the transmission line, preheating chamber both ends lateral wall corresponds the position of going up transfer line and lower transmission line and has all seted up the sliding door, electric heating board, sliding door are connected with the controller electricity.

Has the advantages that: according to the scheme, the preheating cavity is arranged, so that the upper glass and the lower glass conveyed into the preheating cavity can be preheated in a closed state, the preheating efficiency is effectively improved, the preheating environment in the preheating cavity can continuously preheat the upper glass and the lower glass, and the energy required by preheating is effectively saved; in addition, the upper, middle and lower three-layer heating plate is arranged, the upper and lower surfaces of the upper glass and the lower glass can be uniformly preheated, and the glass explosion caused by overhigh local preheating temperature is effectively avoided.

Preferably, the counterpoint unit includes mascerating machine, counterpoint and goes up the transmission line and counterpoint down the transmission line, counterpoint and go up the transmission line and be equipped with the material loading sensor, the material loading sensor is connected with the controller electricity, form the material loading signal and give the controller with material loading signal transfer after the material loading sensor senses the tray, the controller receives material loading signal after control counterpoint and goes up the transmission line and stop the conveying and control mascerating machine and carry out the material loading to last glass and lower glass in proper order.

Has the advantages that: according to the scheme, the upper glass and the lower glass are supplied to the sealing device through the upper sheet machine; and through set up the material loading sensor on counterpointing the last transfer line for go up glass and lower glass can accomplish the counterpoint when counterpoint unit material loading, be convenient for follow-up through synchronous control last transfer line group with lower transfer line group can realize going up glass and the synchronous conveying of lower glass, further simplify the control procedure of vacuum glass sealing.

Preferably, the recovery unit comprises a recovery upper conveying line, a feed end of the recovery upper conveying line is connected with a discharge end of the buffer vacuum cavity, and the discharge end of the recovery upper conveying line is connected with a feed end of the alignment unit; the discharge of the recovery lower conveying line is connected with a discharge conveying line.

Has the beneficial effects that: the scheme connects the buffer sealing vacuum cavity and the alignment upper conveying line by arranging the recovery upper conveying line, thereby realizing the recovery and the reutilization of the tray.

Drawings

Fig. 1 is a schematic top view of an entire upper transmission line set according to an embodiment of the present invention.

Fig. 2 is a side view of the aligning unit according to the embodiment of the present invention.

FIG. 3 is a side view of a preheat unit in an embodiment of the present invention.

FIG. 4 is a side view of a cleaning vacuum chamber in an embodiment of the present invention.

FIG. 5 is a side view of a sealing vacuum chamber in an embodiment of the invention.

Fig. 6 is a sectional view taken along line B-B in fig. 5.

FIG. 7 is a side view of a buffer vacuum chamber in an embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: an alignment unit 1, a sheet feeding machine 11, an alignment upper conveying line 12, an alignment lower conveying line 13, a feeding sensor 14, a preheating unit 2, a preheating chamber 21, an electric heating plate 24, a preheating feeding pneumatic door 25, a preheating discharging pneumatic door 26, a vacuum unit 3, a cleaning vacuum chamber 311, a vacuum feeding pneumatic door 3111, a cleaning discharging pneumatic door 3112, a sealing vacuum chamber 312, a sealing discharging pneumatic door 3121, a sealing upper conveying line 3122, a buffer vacuum chamber 313, a buffer discharging pneumatic door 3131, a buffer upper conveying line 3132, a partition plate 32, a cleaning suction valve 331, a sealing suction valve 332, a buffer suction valve 333, an air inlet valve 335, a plasma surface treatment instrument 337, a longitudinal expansion rod 341, a transverse expansion rod, a grasping head 343, an X-axis guide rail 351, a Y-axis guide rail 352, a heating head 353, a recovery unit 4, a recovery upper conveying line 5, a recovery lower conveying line 6, an upper glass 7, a lower glass 8, and a tray 9.

A full-automatic vacuum sealing device for vacuum glass is disclosed, as shown in figure 1, comprising a conveying unit, a control unit, and an aligning unit 1, a preheating unit 2, a vacuum unit 3 and a recovery unit 4 which are arranged in sequence along the conveying direction of the conveying unit; the control unit includes a controller and a remote server electrically connected.

The transmission unit comprises a double-layer transmission line group, specifically an upper transmission line group and a lower transmission line group, wherein the upper transmission line group comprises a plurality of upper transmission lines which are connected end to end, the lower transmission line group comprises lower transmission lines which are equal to the upper transmission lines in number, and the lower transmission lines are connected end to end; the alignment unit 1, the preheating unit 2, the vacuum unit 3 and the recovery unit 4 are all provided with an upper conveying line and a lower conveying line.

As shown in fig. 2, the aligning unit 1 includes a loading machine 11, an upper aligning conveyor 12, and a lower aligning conveyor 13, and the loading machine 11 is provided with a suction tray so that the loading machine 11 can suck the glass 7 and place it at the center of the tray 9. The feeding ends of the alignment upper conveying line 12 and the alignment lower conveying line 13 are provided with feeding sensors 14, and the feeding sensors 14 are infrared sensors and are electrically connected with a controller; the material loading sensor 14 senses the tray sweeping 9, generates a material loading signal and transmits the material loading signal to the controller, and the controller controls the material loading machine 11 to sequentially load the upper glass 7 and the lower glass 8 according to the material loading signal and can complete the alignment of the upper glass 7 and the lower glass 8 at the same time. The scheme supplies upper glass 7 and lower glass 8 to the sealing device through a loading machine 11; and the feeding sensor 14 is arranged on the upper alignment conveying line 12, so that the alignment of the upper glass 7 and the lower glass 8 can be completed when the alignment unit 1 is fed, the synchronous conveying of the upper glass 7 and the lower glass 8 can be realized through synchronously controlling the upper conveying line group and the lower conveying line group in the follow-up process, and the control flow of vacuum glass sealing is further simplified.

As shown in fig. 3, the preheating unit 2 includes a sealed preheating chamber 21, a preheating upper conveying line, a preheating lower conveying line and a heating plate set are arranged in the preheating chamber 21, the heating plate set includes three layers of electric heating plates 24, the three layers of electric heating plates 24 are respectively located on the top wall of the preheating chamber 21, the bottom wall of the preheating chamber 21, and between the preheating upper conveying line and the preheating lower conveying line, sliding doors are respectively provided at positions of the side walls at both ends of the preheating chamber 21 corresponding to the upper conveying line and the lower conveying line, in this embodiment, the sliding doors are specifically a preheating feeding pneumatic door 25 and a preheating discharging pneumatic door 26 with pneumatic control valves, and the electric heating plates 24 and the pneumatic control valves of the preheating feeding pneumatic door 25 and the preheating discharging pneumatic door 26 are electrically connected to the controller.

As shown in fig. 1, the vacuum unit 3 includes a vacuum chamber, two bulkheads 32 are provided in the vacuum chamber, the two bulkheads 32 divide the vacuum chamber into a cleaning vacuum chamber 311, a sealing vacuum chamber 312, and a buffer vacuum chamber 313, and the cleaning vacuum chamber 311, the sealing vacuum chamber 312, and the buffer vacuum chamber 313 are each provided with an upper conveying line, a lower conveying line, and a suction portion; in this scheme, the sealing vacuum chamber 312 is specifically provided with two air exhaust portions, so that the sealing vacuum chamber 312 can be quickly exhausted, and the sealing efficiency is improved.

As shown in fig. 4, 5 and 6, the evacuation portion includes evacuation holes located on the sidewalls of the vacuum cleaning chamber 311, the sealing vacuum chamber 312 and the buffer vacuum chamber 313, the external pipeline of the evacuation holes is connected to an evacuation member, which is a vacuum pump in this embodiment, and an evacuation valve is disposed on the pipeline connecting the evacuation holes and the evacuation pump. The cleaning vacuum chamber 311 is further provided with an air inlet portion and a cleaning portion, which is embodied as a plasma surface treatment apparatus 337 in this embodiment; the air inlet part comprises an air inlet hole, an air inlet valve 335 and an air inlet part, wherein the air inlet part is specifically an air tank in the embodiment; the air tank pipeline is connected outside the air inlet hole, the air inlet valve 335 is arranged on a connecting pipeline of the air inlet hole and the air tank, and the air exhaust valve, the plasma surface treatment instrument 337 and the air inlet valve 335 are electrically connected with the controller.

The sliding doors are arranged at the two ends of the vacuum cavity and at the positions where the two clapboards 32 correspond to the upper conveying line and the lower conveying line, the vacuum cavity and the clapboards 32 are specifically provided with a vacuum feeding pneumatic door 3111, a cleaning discharging pneumatic door 3112, a sealing discharging pneumatic door 3121 and a buffering discharging pneumatic door 3131 which are electrically connected with the controller along the conveying direction, wherein the vacuum feeding pneumatic door 3111, the cleaning discharging pneumatic door 3112, the sealing discharging pneumatic door 3121 and the buffering discharging pneumatic door 3131 are all provided with pneumatic control valves, and the controller is specifically electrically connected with the pneumatic control valves.

As shown in fig. 5, a gripping fixture and a sealing portion are disposed in the sealing vacuum chamber 312; the grabbing fixture comprises a longitudinal telescopic rod 341 and a transverse telescopic rod group which are fixedly connected, one end of the longitudinal telescopic rod 341 far away from the transverse telescopic rod group is fixed on the top wall of the sealing vacuum cavity 312, and the embodiment is specifically welding; the transverse telescopic rod group comprises four transverse telescopic rods 342 fixed in a crossed manner, the tail ends of the four transverse telescopic rods 342 are respectively provided with a grabbing head 343, the grabbing head 343 made of silica gel is specifically selected for use in the embodiment, the grabbing head 343 is effectively prevented from colliding and damaging the upper glass 7 and simultaneously preventing the upper glass 7 from slipping in the grabbing process, the crossed points of the four transverse telescopic rods 342 are fixedly connected with the longitudinal telescopic rods 341, and the embodiment is specifically welding. In this embodiment, air cylinders are disposed in both the longitudinal extension rod 341 and the transverse extension rod 342, and the air cylinders are electrically connected to the controller.

As shown in fig. 6, the sealing portion includes a sealing track group and a sealing heating member slidably connected to the sealing track; the sealing track group comprises an X-axis guide rail 351, a Y-axis guide rail 352 connected to the X-axis guide rail 351 in a sliding mode, and a Y-axis motor driving the Y-axis guide rail 352 to slide, the sealing-in heating element comprises a heating head 353 connected to the Y-axis guide rail 352 in a sliding mode and a sealing-in motor driving the heating head 353 to slide, and the heating head 353, the Y-axis motor and the sealing-in motor are all electrically connected with the controller. In this embodiment, the sealing track is laid below the lower conveying line, the heating head 353 extends above the lower conveying line, so that the solder strip is conveniently melted by subsequent heating, and the initial position of the sealing part is such that the heating head 353 and the Y-axis guide rail 352 are both deviated from the position right above the lower glass 8.

As shown in fig. 1, in order to complete the bonding of the upper glass 7 and the lower glass 8 in the sealing vacuum chamber 312, the upper conveying line in the sealing vacuum chamber 312 is a sealing upper conveying line 3122, the sealing upper conveying line 3122 includes two parallel upper conveying rails, a plurality of short conveying rollers are rotatably connected to the two upper conveying rails, the end portions of the short conveying rollers are coaxially connected to conveying gears, and conveying chains are connected between the conveying gears; the discharge ends of the two upper conveying rails are rotatably connected with the same long conveying roller which is fixedly connected with an upper conveying driving part; a tray 9 is arranged on the upper conveying line, and the upper glass 7 is arranged on the tray 9 and conveyed along with the conveying of the tray 9(ii) a And the distance between the short conveyor rollers on the two upper conveyor tracks is less than the width of the tray 9 and greater than the width of the upper glass 7, i.e. L _{Width of upper glass 7} ≦L _{(Long conveying roller-2 short conveying roller)} ≦L _{Width of tray 9} . The upper conveying line in the buffer vacuum cavity 313 is a buffer upper conveying line 3132; meanwhile, the tray 9 can be independently conveyed by independently controlling the start and stop of the sealing upper conveying line 3122 and the buffering upper conveying line 3132.

All the upper conveying lines and the lower conveying lines except the sealed upper conveying line 3122 comprise two parallel lower conveying rails, a plurality of lower conveying rollers are rotatably connected between the two upper conveying rails, the end parts of the lower conveying rollers are coaxially connected with conveying gears, and conveying chains are connected between the conveying gears; the lower conveying roller end fixedly connected with that is located lower conveying line discharge end conveys the drive division down, and this embodiment specifically is last conveying motor. Each upper conveying motor and each upper conveying motor are electrically connected with the controller. The two conveying rails of the upper conveying line and the two conveying rails of the lower conveying line are combined to form a double-layer rack.

The recovery unit 4 comprises a recovery upper conveying line 5, the feed end of the recovery upper conveying line 5 is connected with the discharge end of the buffer vacuum cavity 313, and the discharge end of the recovery upper conveying line 5 is connected with the feed end of the alignment unit 1; the recovery lower conveying line 6 is connected with a discharging conveying line (not shown in the figure).

The controller is specifically a PLC controller which is electrically connected with the remote server and is controlled by a program in the remote server; last mascerating machine, bleeder valve, infrared ray sensor, admission valve 335, pneumatic door, plasma surface treatment appearance 337, cylinder, motor, PLC controller and remote server etc. are prior art in this scheme, and the model can be selected according to actual need by oneself, and no longer the repeated description here.

The specific implementation process is as follows:

(1) Feeding and aligning stage

As shown in fig. 1 and 2, the controller controls the upper alignment conveying line 12 to be in a conveying state and the lower alignment conveying line 13 to be in a stop state; when the feeding sensor 14 senses the tray 9, a feeding signal is formed and transmitted to the controller, the controller controls the upper aligning transmission line 12 to stop transmitting and starts the loading machine 11 after receiving the feeding signal, the loading machine 11 sequentially finishes feeding the upper glass 7 and the lower glass 8, then a feeding end signal is formed and fed back to the controller, the controller starts the upper aligning transmission line 12 and the lower aligning transmission line 13 after receiving the feeding end signal, and at the moment, the upper glass 7 and the lower glass 8 finish feeding and aligning.

(2) Preheating stage

As shown in fig. 3, when the controller controls the preheating discharging pneumatic door 26 to be closed, the preheating feeding pneumatic door 25 is controlled to be opened, and then the alignment of the upper conveying line 12 group and the lower conveying line group is controlled to be started; after the upper glass 7 and the lower glass 8 are conveyed into the preheating cavity 21, the preheating feeding pneumatic door 25, the upper conveying line group and the lower conveying line group are closed (the conveying speed of the upper conveying line group and the lower conveying line group is 0.5-1.2m/s, the conveying time is coded into a remote controller in advance according to the conveying distance), and then the electric heating plate 24 is opened to heat the upper glass 7 and the lower glass 8, specifically, the upper glass 7 and the lower glass 8 are preheated for 2-5min at the temperature of 100-200 ℃; the electric heating plate 24 is then turned off, waiting for the subsequent stage to be entered. The time required to complete this phase is 2-5min.

(3) Cleaning phase

As shown in fig. 4, when the controller controls the cleaning discharging pneumatic door 3112 to be closed, the cleaning feeding pneumatic door is controlled to be opened, and then the upper and lower transporting line groups are controlled to be transported simultaneously, and the cleaning feeding pneumatic door, the upper transporting line group and the lower transporting line group are closed after the upper and

lower glasses

7 and 8 are transported to the cleaning vacuum chamber 311; then, opening the cleaning suction valve 331 to make the vacuum pump vacuum the cleaning vacuum chamber 311 to a vacuum degree of 0.01-0.1Pa, and then closing the cleaning intake valve 335; then, the air inlet valve 335 is opened to let the gas in the gas tank into the clean vacuum chamber 311 (in this embodiment, the gas in the gas tank is one or more of oxygen, argon, nitrogen and helium), specifically, the air inlet valve 335 is closed after 20-40S of gas is let in at the gas flow rate of 1000-1500 ml/min. And finally, opening the plasma surface treatment instrument 3371-2min, then closing the plasma surface treatment instrument 337, wherein in the process, the plasma surface treatment instrument 337 applies energy to the air introduced into the cleaning vacuum chamber 311 to ionize the air to form plasma active components, and the plasma active components can clean the lower surface of the upper glass 7 and the upper surface of the lower glass 8, so that the impurities of the upper glass 7 and the lower glass 8 are removed. The operation is stopped after the plasma surface treatment apparatus 337 is turned off, and a subsequent stage is waited for. The time required to complete the cost stage is 2-3min.

(4) Vacuum sealing stage

As shown in fig. 5, the initial position of the gripping fixture is that the lower end of the transverse telescopic rod 342 is located right above the sealed upper conveying line 3122. When the controller controls the sealing discharge pneumatic door 3121 to close, the cleaning discharge pneumatic door 3112 is controlled to open, then the upper conveying line group and the lower conveying line group are controlled to be conveyed simultaneously, and after the upper glass 7 and the lower glass 8 are conveyed to the sealing vacuum chamber 312 and under the grabbing clamp, the cleaning discharge pneumatic door 3112, the upper conveying line group and the lower conveying line group are closed.

And then the four transverse telescopic rods 342 are controlled to extend outwards to exceed the edge of the upper glass 7 by 1-2mm, the longitudinal telescopic rod 341 is controlled to extend to the lower end of the transverse telescopic rod 342 to be attached to the upper surface of the upper glass 7, at the moment, the four transverse telescopic rods 342 are controlled to contract to the grabbing head 343 to be attached to the upper glass 7, and finally the longitudinal telescopic rod 341 is controlled to contract to the initial position of recovering the grabbing clamp, so that the grabbing clamp can grab and clamp the upper glass 7.

After the upper glass 7 is clamped by the grabbing clamp and leaves the tray 9, the sealing discharge pneumatic door 3121 and the sealing upper conveying line 3122 are opened at the same time, the tray 9 is conveyed forwards in the proper position, and after the tray 9 in the sealing vacuum cavity 312 is conveyed to the buffer vacuum cavity 313, the sealing discharge pneumatic door 3121 and the sealing upper conveying line 3122 are closed; then, the sealing air exhaust valve 332 is opened, so that the vacuum pump vacuumizes the sealing vacuum cavity 312 to the vacuum degree of 0.001-0.009Pa, and then the sealing air exhaust valve 332 is closed; and then the longitudinal telescopic rod 341 is controlled to extend to the lower surface of the upper glass 7 to be attached to a support positioned on the upper surface of the lower glass 8, after the attachment is finished, the four transverse telescopic rods 342 are controlled to extend outwards by 1-2mm to enable the grabbing head 343 to leave the edge of the upper glass 7, and the longitudinal telescopic rod 341 is controlled to retract to the initial position of the grabbing clamp, so that the attachment of the upper glass 7 and the lower glass 8 is finished.

As shown in fig. 6, after the upper glass 7 and the lower glass 8 are completely bonded, the heating head 353 is controlled to move to the position right above the metallization layer of the upper glass 8 under the combined action of the X-axis guide rail 351 and the Y-axis guide rail 352 and then to start heating, in the scheme, the heating head 353 specifically adopts a high-frequency induction coil or laser to heat and melt the solder strip in the middle of the metallization layers of the upper glass 8 and the lower glass 8, the heating head 353 is 1-2mm away from the upper surface of the upper glass 7, the solder strip is heated along the track of the metallization layers under the conditions that the heating temperature is 180-240 ℃ and the walking speed of the heating head 353 is 10-20mm/S, the melted solder bonds the metallization layers of the upper glass 8 and the lower glass 8 together, and the heating head 353 walks clockwise or anticlockwise for one turn along the metallization layers to complete vacuum sealing of the upper glass 7 and the lower glass 8, so as to obtain vacuum glass after sealing; the time required to complete this phase is 3-15min.

(5) Buffer stage

As shown in fig. 6 and 7, after sealing, the controller controls the Y-axis guide 352 to return to the initial position (the heating head 353 and the Y-axis guide 352 are deviated from the position directly above the lower glass 8), and simultaneously opens the sealing discharge pneumatic door 3121, the buffer discharge pneumatic door 3131, the lower conveying line group, and the upper conveying line group excluding the buffer upper conveying line 3132, and conveys the vacuum glass to the buffer vacuum chamber 313, and then seals the discharge pneumatic door 3121, the buffer discharge pneumatic door 3131, the upper conveying line, and the lower conveying line.

Then the controller controls the buffer air exhaust valve 333 to open, the vacuum pump vacuumizes the buffer vacuum cavity 313 until the vacuum degree in the buffer vacuum cavity 313 is 0.01-0.1Pa, then the buffer air exhaust valve 333 is closed, and the sealing material is conveyed out of the buffer vacuum cavity 313 along with the start of the upper conveying line group and the lower conveying line group after the next sealing stage is finished. In the scheme, the vacuum degree of the buffer vacuum cavity 313 effectively avoids the vacuum sealing effect from being influenced by destroying the vacuum degree of the sealing vacuum cavity 312 when the tray 9 is conveyed to leave the sealing vacuum cavity 312.

According to the scheme, when the vacuum glass is conveyed into the buffer vacuum cavity 313, the upper conveying line group and the lower conveying line except the buffer upper conveying line 3132 are controlled to be conveyed forward by one step, the problem that the tray 9 is recovered discontinuously due to the fact that the tray 9 is conveyed forward independently by the seal upper conveying line 3122 in the sealing stage is effectively solved, the upper glass 7 and the lower glass 8 which are cleaned are synchronously conveyed to the sealing vacuum cavity 312, and then the continuous production of the vacuum glass is realized.

(6) Tray recovery stage

As shown in FIG. 1, when the tray 9 and the vacuum glass are transferred out of the buffer vacuum chamber 313, the tray 9 is transferred to the alignment upper transfer line 12 through the collection upper transfer line 5, and the vacuum glass is transferred to the discharge transfer line through the collection lower transfer line 6. In the scheme, the upper recycling conveying line 5 and the upper aligning conveying line 12 are continuously in a conveying state, so that the tray 9 can be continuously recycled. The time required for the recovery of the tray 9 at this stage is about 1-2min.

Compared with the prior art, the scheme has the following advantages:

1. the full-automatic vacuum sealing device is adopted, the production efficiency of the vacuum glass is high, meanwhile, the production process does not need manual intervention, and the product quality is guaranteed;

2. the tray 9 is effectively recycled through the recycling unit 4, so that the continuous production of the vacuum glass is guaranteed;

3. the glass is preheated, so that the glass cannot be broken due to overlarge temperature difference in the glass sealing process. The applicant finds that if the glass is not subjected to preheating treatment, the glass is at the normal temperature of about 25-30 ℃, the melting temperature of a solder strip is higher when sealing is carried out, the temperature is about 180-240 ℃, the temperature of the glass adjacent to the solder strip is still at the normal temperature, and the glass is easy to break due to large temperature difference;

4. the cleaning vacuum cavity 311 adopts the plasma surface treatment instrument 337 to clean and remove impurities from the sealing surface of the glass, so that the vacuum degree of the vacuum glass is effectively prevented from being reduced by impurities, gas, moisture and the like attached to the surface of the glass, and the service life of the sealed vacuum glass is prolonged;

5. the sealing vacuum chamber 312 completes vacuum sealing of glass by a vacuum one-step method, and a vacuum glass product is formed after sealing, so that the production flow of vacuum glass is shortened, the production efficiency is improved, and the sealing quality of vacuum glass can be effectively improved.

Specifically, the examples 1 to 3 show that the vacuum sealing is performed on the flat tempered glass with different sizes, and the flow and the time consumption of producing the vacuum glass by using the full-automatic vacuum sealing device for the vacuum glass are explained.

Example 1

The method comprises the following specific steps:

(1) Preparing materials: preparing ten pieces of flat tempered upper glass and ten pieces of flat tempered lower glass with the thicknesses of 400 x 700mm;

(2) A feeding and aligning stage: the upper glass 7 and the lower glass 8 are respectively transferred to an upper contraposition conveying line 12 and a lower contraposition conveying line 13 under the action of a sheet feeding machine 11, and contraposition is completed, the height difference between the upper glass 7 and the lower glass 8 is 30mm, and the time for completing contraposition of the upper glass 7 and the lower glass 8 is 10s.

(3) A preheating stage: the upper glass 7 and the lower glass 8 after the alignment respectively enter a preheating cavity 21 through respective conveying lines, and are heated for 2min at the temperature of 150 ℃;

(4) A cleaning stage: the preheated upper glass 7 and the preheated lower glass 8 are synchronously moved into the vacuum cleaning chamber 311 under the action of the conveying line, and then the internal pressure of the vacuum cleaning chamber 311 is reduced to 0.01Pa under the action of the vacuum pump, and then the vacuum cleaning valve 331 is closed; at this time, the gas inlet valve 335 is opened and gas, which is a mixed gas of oxygen and argon in the present embodiment, is introduced into the cleaning vacuum chamber 311 at a ratio of 7/3, the flow rate is 1000ml/min, and the blowing time is 30s, that is, the gas inlet valve 335 is closed when the internal gas amount is 350ml of oxygen and 150ml of argon. After the gas is introduced, the plasma surface treatment instrument 337 is opened, the sealing surfaces of the upper and lower glasses 8 are cleaned and decontaminated for 1min under the action of the gas (mainly removing gas molecules, moisture and other impurities attached to the glass surface), and the ion surface treatment instrument is closed after the decontamination is finished, so that the pretreatment of the glass surface is finished, wherein the time required by the stage is 2min;

(5) And (3) vacuum sealing: conveying the upper glass 7 and the lower glass 8 with the cleaned surfaces into a sealing vacuum cavity 312, wherein the upper glass 7 leaves the tray 9 under the action of a grabbing clamp, and the upper glass 7 is separated from the tray 9; then, the tray 9 is conveyed away from the sealing vacuum cavity 312, the internal pressure of the sealing vacuum cavity 312 is maintained at 0.001Pa by a vacuum pump in a sealed state, then the upper glass 7 is attached to the lower glass 8 under the action of a clamp, after the attachment, the heating head 353 (specifically, a high-frequency induction coil in the embodiment) is used for heating the metalized layer area of the glass, the heating temperature is 200 ℃, the traveling speed of the heating head 353 is 15mm/S, so that the time required for sealing 400 x 700mm glass is about 147S, and the duration of the whole vacuum sealing process is 4min;

(6) A buffering stage: after the vacuum glass which is vacuum sealed enters the buffer vacuum chamber 313, the internal pressure of the buffer vacuum chamber 313 is maintained at 0.01Pa, and the tray 9 and the vacuum glass leave the buffer vacuum chamber 313 under the action of the conveying line. After the glass is separated, the buffer vacuum cavity 313 starts to continuously extract the gas in the vacuum cavity, the pressure of the gas is kept at 0.01Pa, and the next piece of vacuum glass is waited to enter, wherein the time required by the process is about 1min;

(7) A tray recovery stage: after leaving the buffer vacuum cavity 313, the tray 9 returns to the initial position through the upper recovery conveying line 5, and the recycling of the tray 9 is completed;

in this embodiment, in order to ensure continuous production of vacuum glass, the number of trays 9 used is 8. The time required for conveying the upper glass 7 from the tray 9 to the vacuum glass and leaving the buffer vacuum cavity 313 is about 10min, the time required for producing ten pieces of vacuum glass is basically consistent, and the error is about 1-5 s.

Example 2

The difference between the embodiment and the embodiment 1 is that the full-automatic vacuum sealing device for vacuum glass performs vacuum sealing on flat tempered glass with the size of 1200 × 800mm by using the scheme to form the vacuum glass; the method comprises the following specific steps:

(1) Preparing materials: preparing ten pieces of flat tempered upper glass and ten pieces of flat tempered lower glass with the sizes of 1200 x 800mm;

(2) And (3) material loading and alignment stage: the upper glass 7 and the lower glass 8 are respectively transferred to an upper contraposition conveying line 12 and a lower contraposition conveying line 13 under the action of a sheet feeding machine 11, and contraposition is completed, the height difference between the upper glass 7 and the lower glass 8 is 30mm, and the time for completing contraposition of the upper glass 7 and the lower glass 8 is 10s.

(3) A preheating stage: the upper glass 7 and the lower glass 8 after the alignment respectively enter a preheating cavity 21 through respective conveying lines, and are heated for 3min at the temperature of 180 ℃;

(4) A cleaning stage: the preheated upper glass 7 and the preheated lower glass 8 are synchronously moved into the vacuum cleaning chamber 311 under the action of the conveying line, and then the internal pressure of the vacuum cleaning chamber 311 is reduced to 0.01Pa under the action of the vacuum pump, and then the vacuum cleaning valve 331 is closed; at this time, the gas inlet valve 335 is opened and gas, which is a mixed gas of oxygen, nitrogen and argon in the present embodiment, is introduced at a ratio of 5. After the gas is introduced, opening the plasma surface treatment instrument 337, cleaning and removing impurities from the sealing surfaces of the upper and lower glasses 8 for 2min (mainly removing gas molecules, moisture and other impurities attached to the glass surfaces), and after the impurities are removed, closing the plasma surface treatment instrument to finish the pretreatment of the glass surfaces, wherein the time required in the stage is 3min;

(5) And (3) vacuum sealing: conveying the upper glass 7 and the lower glass 8 with the cleaned surfaces into a sealing vacuum cavity 312, wherein the upper glass 7 leaves the tray 9 under the action of a grabbing clamp, and the upper glass 7 is separated from the tray 9; then, the tray 9 is conveyed away from the sealing vacuum cavity 312, the internal pressure of the sealing vacuum cavity 312 is maintained at 0.001Pa by a vacuum pump in a sealed state, then the upper glass 7 is attached to the lower glass 8 under the action of a clamp, after the attachment, a heating head 353 (specifically, a high-frequency induction coil in the embodiment) is used for heating a metalized layer area of the glass, the heating temperature is 200 ℃, the traveling speed of the heating head 353 is 10mm/s, so that the time required for completing the sealing of the glass with the temperature of 1200 × 800mm is about 400s, and the duration of the whole vacuum sealing process is 8min;

(6) A buffering stage: after the vacuum glass having been vacuum sealed enters the buffer vacuum chamber 313, the pressure inside the buffer vacuum chamber 313 is maintained at 0.01Pa, and the tray 9 and the vacuum glass are separated from the buffer vacuum chamber 313 by the conveying line. After the glass is separated, the buffer vacuum cavity 313 starts to continuously extract the gas in the vacuum cavity and keeps the pressure of 0.01Pa to wait for the next piece of vacuum glass to enter, and the time required by the process is about 1min;

in this embodiment, in order to ensure continuous production of vacuum glass, the number of trays 9 used is 6. The time for conveying the upper glass 7 from the tray 9 to the vacuum glass to leave the buffer vacuum cavity 313 is about 16min, the time for producing ten pieces of vacuum glass is basically consistent, and the error is about 1-5 s.

Example 3

The difference between the embodiment and the embodiment 1 is that the vacuum glass is used for carrying out vacuum sealing on flat tempered glass with the size of 1500 × 2000mm by using the full-automatic vacuum sealing device to form vacuum glass; the method comprises the following specific steps:

(1) Preparing materials: preparing ten pieces of flat tempered upper glass and ten pieces of flat tempered lower glass with the sizes of 1500 × 2000 mm;

(2) And (3) material loading and alignment stage: the upper glass 7 and the lower glass 8 are respectively transferred to an upper alignment conveying line 12 and a lower alignment conveying line 13 under the action of a piece loading machine 11, and alignment is completed, the height difference between the upper glass 7 and the lower glass 8 is 30mm, and the alignment completion time of the upper glass 7 and the lower glass 8 is 10s.

(3) A preheating stage: the upper glass 7 and the lower glass 8 after the alignment respectively enter a preheating cavity 21 through respective conveying lines, and are heated for 4min at 2000 ℃;

(4) A cleaning stage: the preheated upper glass 7 and the preheated lower glass 8 are synchronously moved into the cleaning vacuum cavity 311 under the action of the conveying line, and then the cleaning suction valve 331 is closed after the internal pressure of the cleaning vacuum cavity 311 is reduced to 0.01Pa under the action of the vacuum pump; at this time, the air inlet valve 335 is opened and gas is introduced into the cleaning vacuum chamber 311, in this embodiment, the gas is a mixed gas of oxygen, nitrogen, helium and argon, the ratio is 4. After the gas is introduced, opening the plasma surface treatment instrument 337, cleaning and removing impurities from the sealing surfaces of the upper and lower glasses 8 for 2min (mainly removing gas molecules, moisture and other impurities attached to the glass surfaces), and after the impurities are removed, closing the plasma surface treatment instrument to finish the pretreatment of the glass surfaces, wherein the time required in the stage is 4min;

(5) And (3) vacuum sealing: conveying the upper glass 7 and the lower glass 8 with the cleaned surfaces into a sealing vacuum cavity 312, wherein the upper glass 7 leaves the tray 9 under the action of a grabbing clamp, and the upper glass 7 is separated from the tray 9; then, the tray 9 is conveyed away from the sealing vacuum cavity 312, the internal pressure of the sealing vacuum cavity 312 is maintained at 0.001Pa by a vacuum pump in a sealed state, then the upper glass 7 is attached to the lower glass 8 under the action of a clamp, and after the attachment, the heating head 353 (specifically, a high-frequency induction coil in the embodiment) is used for heating the metalized layer area of the glass, the heating temperature is 200 ℃, the traveling speed of the heating head 353 is 10mm/s, so that the time required for sealing 1500 × 2000mm glass is about 700s, and the duration of the whole vacuum sealing process is 13min;

in this embodiment, the number of trays 9 used is 5 to ensure continuous production of vacuum glass. The time required for conveying the upper glass 7 from the tray 9 to the vacuum glass to leave the buffer vacuum cavity 313 is about 23min, the time required for producing ten pieces of vacuum glass is basically consistent, and the error is about 1-5 s.

The time consumption of the sealing stage of the vacuum glass is 10-23min, the production time is obviously shorter than several hours in the prior art, and the production efficiency of the vacuum glass is obviously improved. In addition, by detecting the heat transfer coefficient U values of thirty sheets of vacuum glass produced and prepared in the embodiments 1 to 3 of the scheme, the heat transfer coefficient U values of the vacuum glass produced by the scheme are all 0.5 to 0.7W/(m) ² K) which meets and is significantly superior to the national standard for vacuum glassStandard of first-class vacuum glass in quasi GB/T38586-2020 (the heat transfer coefficient U value of the first-class vacuum glass in the standard is 0.5-1.2W/(m) ² ·K)。

The main reasons for this are:

1. the vacuum degree in the vacuum sealing stage is 0.001-0.009Pa, so that the standard of vacuum glass first-class products in the national standard GB/T38586-2020 can be obtained; the applicant finds through experiments that when the vacuum glass is sealed by adopting the scheme, when the vacuum degree in the vacuum sealing stage is less than 0.001Pa, the produced vacuum glass products all accord with the standard of first-class vacuum glass in the national standard GB/T38586-2020; when the vacuum degree in the vacuum sealing stage is between 0.001Pa and 0.1Pa, the produced vacuum glass products all accord with the standard of vacuum glass second-class products in the national standard GB/T38586-2020.

According to the scheme, the vacuum buffer stage with the vacuum degree of 0.01-0.1Pa is used for buffering the sealed vacuum glass after the vacuum sealing stage, so that the vacuum glass can be prevented from being broken due to overlarge surface pressure difference when the sealed vacuum glass directly enters a non-vacuum environment; the vacuum required by vacuum sealing can be quickly recovered in the vacuum sealing stage in which the vacuum degree is temporarily reduced, so that the production efficiency is improved. Put back, even if the vacuum degree in the vacuum sealing stage in the scheme can not be quickly recovered, after the vacuum degrees in the vacuum buffer stage (0.01-0.1 Pa) and the vacuum sealing stage (0.001-0.009 Pa) are mutually influenced, the vacuum degree in the vacuum sealing stage is still less than 0.1Pa, and the vacuum glass which meets the second-class product standard of the vacuum glass in the national standard GB/T38586-2020 can still be produced, so that the sudden stop of production caused by temporary failure of equipment is avoided.

The above description is only an example of the present invention, and the general knowledge of the known specific technical solutions and/or characteristics and the like in the solutions is not described herein too much. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a full-automatic vacuum seal device for vacuum glass which characterized in that: the device comprises a control unit, a vacuum unit and a conveying unit, wherein the conveying unit comprises an upper conveying line group and a lower conveying line group which are parallel; the vacuum unit comprises a vacuum cavity, an upper conveying line group and a lower conveying line group are arranged in the vacuum cavity, and sliding doors are arranged at the two ends of the vacuum cavity corresponding to the upper conveying line group and the lower conveying line group; the vacuum cavity is provided with an air exhaust part, and a grabbing clamp and a sealing part are arranged in the vacuum cavity;

2. The full-automatic vacuum sealing device for vacuum glass according to claim 1, characterized in that: two clapboards are arranged in the vacuum cavity, the vacuum cavity is divided into a cleaning vacuum cavity, a sealing vacuum cavity and a buffering vacuum cavity by the two clapboards, and sliding doors are arranged at the positions of the clapboards corresponding to the upper conveying line group and the lower conveying line group; the grabbing clamp and the sealing part are both positioned in a sealing vacuum cavity.

3. The full-automatic vacuum sealing device for vacuum glass according to claim 2, characterized in that: the grabbing fixture comprises a longitudinal telescopic rod and a transverse telescopic rod group which are fixedly connected, one end of the longitudinal telescopic rod, which is far away from the transverse telescopic rod group, is fixed on the top wall of the sealing vacuum cavity, the transverse telescopic rod group comprises four transverse telescopic rods which are fixed in a cross manner, grabbing heads are arranged at the tail ends of the four transverse telescopic rods, and the cross fixing points of the four transverse telescopic rods are fixedly connected with the longitudinal telescopic rod.

4. A full-automatic vacuum sealing apparatus for vacuum glass according to claim 3, characterized in that: the vacuum cleaning chamber, the sealing-in vacuum chamber and the buffering vacuum chamber are respectively provided with an air exhaust part, and the air exhaust parts comprise air exhaust holes positioned on the side walls of the vacuum cleaning chamber, the sealing-in vacuum chamber and the buffering vacuum chamber, air exhaust parts connected outside the air exhaust holes through pipelines and air exhaust valves arranged on the connecting pipelines; the cleaning vacuum cavity is also provided with an air inlet part and a cleaning part; the air inlet part comprises an air inlet hole, an air inlet piece connected outside the air inlet hole through a pipeline and an air inlet valve arranged on the connecting pipeline, and the air suction valve and the air inlet valve are electrically connected with the controller.

5. A full-automatic vacuum sealing apparatus for vacuum glass according to claim 4, characterized in that: the sealing part comprises a sealing track group and a sealing heating element which is connected to the sealing track group in a sliding manner; the sealing track group comprises an X-axis guide rail, a Y-axis guide rail connected to the X-axis guide rail in a sliding manner, and a Y-axis motor driving the Y-axis guide rail to slide, the sealing heating element comprises a heating head connected to the Y-axis guide rail in a sliding manner and a sealing motor driving the heating head to slide, and the heating head, the Y-axis motor and the sealing motor are all electrically connected with the controller.

6. A full-automatic vacuum sealing apparatus for vacuum glass according to claim 2, characterized in that: the vacuum cavity is positioned between the preheating unit and the recovery unit; the upper conveying line group comprises a plurality of upper conveying lines which are connected end to end, the lower conveying line group comprises lower conveying lines which are equal to the upper conveying lines in number, and the lower conveying lines are connected end to end; the upper conveying line is correspondingly provided with an upper conveying driving part, the lower conveying line is correspondingly provided with a lower conveying driving part, and the upper conveying driving part and the lower conveying driving part are both electrically connected with the controller; an upper transmission line and a lower transmission line are arranged in the alignment unit, the preheating unit, the cleaning vacuum cavity, the sealing vacuum cavity, the buffering vacuum cavity and the recovery unit, and the upper transmission line in the sealing vacuum cavity is a sealing upper transmission line.

7. A full-automatic vacuum sealing apparatus for vacuum glass according to any one of claims 1 to 6, wherein: the sealing upper conveying line comprises two parallel upper conveying rails, a plurality of short conveying rollers are respectively and rotatably connected to the two upper conveying rails, the end parts of the short conveying rollers are coaxially connected with conveying gears, and conveying chains are connected between the conveying gears; the discharge ends of the two upper conveying rails are rotatably connected with the same long conveying roller which is fixedly connected with an upper conveying driving part; a tray is placed on the upper conveying line, and the upper glass is placed on the tray and conveyed along with the tray; the distance between the short conveying rollers on the two upper conveying tracks is smaller than the width of the tray and larger than the width of the upper glass; the upper conveying line and the lower conveying line except the sealed upper conveying line comprise two parallel lower conveying rails, a plurality of lower conveying rollers are rotatably connected between the two upper conveying rails, the end parts of the lower conveying rollers are coaxially connected with conveying gears, and conveying chains are connected between the conveying gears; and a lower conveying roller positioned at the discharge end of the lower conveying line is fixedly connected with the lower conveying driving part, and the lower glass is placed on the lower conveying roller for conveying.

8. The full-automatic vacuum sealing device for vacuum glass according to claim 7, characterized in that: the preheating unit comprises a preheating cavity, a preheating upper conveying line, a preheating lower conveying line and a heating plate group are arranged in the preheating cavity, the heating plate group comprises three layers of electric heating plates, the three layers of electric heating plates are respectively located between a preheating cavity top wall, a preheating cavity bottom wall and the upper conveying line and the lower conveying line, sliding doors are arranged at positions, corresponding to the upper conveying line and the lower conveying line, of side walls of two ends of the preheating cavity, sliding doors are arranged, and the electric heating plates, the sliding doors are electrically connected with the controller.

9. A full-automatic vacuum sealing apparatus for vacuum glass according to claim 8, characterized in that: the alignment unit comprises a loading machine, an alignment upper transmission line and an alignment lower transmission line, the alignment upper transmission line is provided with a loading sensor, the loading sensor is electrically connected with the controller, the loading sensor senses a tray and then forms a loading signal and transmits the loading signal to the controller, and the controller receives the loading signal and then controls the alignment upper transmission line to stop transmitting and controls the loading machine to sequentially load glass and lower glass.

10. A full-automatic vacuum sealing apparatus for vacuum glass according to claim 9, characterized in that: the recovery unit comprises a recovery upper conveying line, the feed end of the recovery upper conveying line is connected with the discharge end of the buffer vacuum cavity, and the discharge end of the recovery upper conveying line is connected with the feed end of the alignment unit; the discharge of the recovery lower conveying line is connected with a discharge conveying line.