CN106746577B - Can anti-scratch float glass transport device - Google Patents
Can anti-scratch float glass transport device Download PDFInfo
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- CN106746577B CN106746577B CN201611194133.2A CN201611194133A CN106746577B CN 106746577 B CN106746577 B CN 106746577B CN 201611194133 A CN201611194133 A CN 201611194133A CN 106746577 B CN106746577 B CN 106746577B
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- compression chamber
- transfer roller
- gas
- float glass
- stomata
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
Abstract
The invention belongs to glass arts, specifically disclose it is a kind of can anti-scratch float glass transport device, including being connected to molten tin bath portion side transition roller table and annealing kiln in turn, several transfer rollers are equipped in transition roller table and the annealing kiln, transfer roller bottom side is rotatably connected to gas cassette for supplying, and gas cassette for supplying top is provided with supply opening；Transfer roller is hollow and both ends are equipped with sealing plate, and transfer roller inner wall is equipped with inner convex platform, is combined with piston plate on inner convex platform, and piston plate and transfer roller form the first compression chamber and the second compression chamber, and the different ends of the first compression chamber and the second compression chamber are provided with stomata；Spring is fixed between piston plate and the sealing plate of the second compression chamber, piston plate one end is fixed with connecting rod, and connecting rod has cam far from one end static connection of piston, and cam includes salient point and concave point, and cam side is combined with mandril.This programme can be improved SO2Gas and float glass form the efficiency of protective film, and can reduce SO2Pollution of the gas to environment.
Description
Technical field
The invention belongs to glass art more particularly to a kind of equipment of the forming of float glass.
Background technique
Currently, the production of float glass is largely that melten glass liquid stream is entered to molten tin bath portion and carries out forming technology, with shape
At certain thickness glass tape, the glass tape for reaching target thickness enters annealing from transition roller of the molten tin bath portion outlet through transition roller table
Kiln, and annealing process is completed in annealing kiln, glass tape is finally cut into the glass plate of predetermined size.
Glass tape is needed from molten tin bath portion out to eventually off production line by transport a distance, and transfer roller during this period can
With up to hundreds of, glass tape may be the defects of glass tape lower surface forms micro- scuffing with directly contacting for transfer roller.For
It prevents glass from generating such defect, generally requires to be passed through SO in glass tape lower surface2, SO at high temperature2With glass tape lower surface
Na ionic reaction generate the film damper protective layer of sodium sulphate or sodium sulfite, which can greatly inhibit under glass
Surface generates the defects of micro- scuffing.
For the protective layer for generating glass tape lower surface, existing way is that protection is arranged between transition roller table and annealing kiln
Layer generating means, the SO of generation2Gas can form the region of various concentration in glass tape lower surface, make SO2In gas and transmission
It sufficiently reacts glass tape lower surface.The device can play the role of protecting glass tape to a certain extent, but this protective layer is raw
It is not isolated from the outside world at device, is easy to make SO2Gas, which largely sheds, leads to environmental pollution, also results in SO2The waste of gas,
SO simultaneously2Gas is deposited in lower glass surface, and the SO of a part can be taken away when the glass tape for having formed protective film is transmitted away2
Gas, and when the glass of not formed protective film is sent, gas is wanted to be reacted with lower glass surface also to need first to rise
A certain distance just can with glass contact and react, the gas rate of climb is slower, has little time to form guarantor during transportation
Cuticula, this still results in the scuffing deformation of glass tape, fried plate or disconnected plate accident then occurs when serious.
Summary of the invention
The purpose of the present invention is to provide it is a kind of can anti-scratch float glass transport device, to improve SO2Gas and floating
Method glass forms the efficiency of protective film, avoids glass from scratching during transportation, and can reduce SO2Pollution of the gas to environment.
In order to achieve the above object, base case of the invention provide it is a kind of can anti-scratch float glass transport device,
Including being connected to molten tin bath portion side transition roller table and annealing kiln in turn, it is equipped in the transition roller table and the annealing kiln several
The transfer roller of root rotation connection on the rack, the transfer roller bottom is equipped with for providing SO2The gas cassette for supplying of gas, transmission
Roller is rotatably connected on gas cassette for supplying, and gas cassette for supplying top is provided with the supply opening matched with transfer roller；Transfer roller
The both ends of hollow and sealing, transfer roller are equipped with sealing plate；Transfer roller inner wall is equipped with inner convex platform, is combined with cunning on the inner convex platform
The dynamic piston plate being connected in transfer roller；The piston plate and transfer roller form the first compression chamber and the second compression chamber, and described the
Stomata, the stomata phase of the stomata and the second compression chamber of first compression chamber are provided on one compression chamber and second compression chamber
To arrangement；Spring is fixed between piston plate and the sealing plate of the second compression chamber, one end that piston plate is located at the second compression chamber is solid
Surely there is the connecting rod being slidably connected on sealing plate, the connecting rod has cam, the cam far from one end static connection of piston
It include salient point and concave point, cam side is combined with mandril.
The principle of this base case is:
When initial, the stomata on the first compression chamber is located at transfer roller lower end and is connected to gas cassette for supplying, the second compression chamber
On stomata be located at the upper end of transfer roller, the concave point position of mandril and cam offsets.
When work, start transfer roller, float glass is led from molten tin bath portion onto transfer roller, the rotation of transfer roller makes the
The stomata of one compression chamber gradually goes to upper end from lower end, and the stomata of the second compression chamber gradually goes to lower end from upper end.Transfer roller
The point of the rotation of rotation drive piston plate, connecting rod and cam, cam and ejector pin contact gradually goes to salient point from the concave point of cam,
Cam is gradually squeezed by mandril and is moved along the direction of the first compression chamber, and the mobile promotion connecting rod and piston plate of cam are also along first
The direction of compression chamber is mobile, the SO in the first compression chamber2Gas is extruded and is sprayed onto float glass lower surface and the shape that reacts
At protective film；The second compression chamber space is widened at the same time, and pressure becomes smaller, the SO in gas cassette for supplying2Gas passes through second
The stomata of compression chamber, which enters in the second compression chamber, to be supplemented.Float glass will drive SO during transmitting on transfer roller2
Gas flows a distance, SO2Gas continuation reacts with float glass, increases the thickness of protective film.When the first compression chamber
Stomata gradually go to lower end from upper end and be connected to the supply opening of gas cassette for supplying, the stomata of the second compression chamber is gradually from lower end
When going to upper end, the point of cam and ejector pin contact gradually turns to concave point from salient point, under the action of spring restoring force, cam band
Dynamic connecting rod is moved with piston plate along the direction far from the first compression chamber, so that the first compression chamber space becomes larger, pressure becomes smaller, gas
SO in body cassette for supplying2Gas is entered in the first compression chamber by the stomata of the first compression chamber to be supplemented；At the same time second
Compression chamber is compressed, the SO in the second compression chamber2Gas is extruded and is sprayed onto float glass lower surface and reacts to form guarantor
Cuticula.
The beneficial effect of this base case is:
(1)SO2Gas is extruded in the rotation process of transfer roller and then is sprayed onto the lower surface of float glass, and gas has
Certain speed, this speed can be such that gas quickly contacts with float glass lower surface, and with the Na of float glass lower surface from
Son reaction generates the protective film of sodium sulphate or sodium sulfite, improves the speed that float glass lower surface protective film is formed；
(2) transfer roller is divided into the first compression chamber and the second compression chamber, transfer roller is made to spray SO2May be used also while gas
In time to the SO in transfer roller2Gas is supplemented, and ensure that SO2The continuity of gas supply, improves float glass lower surface
The speed that protective film is formed；
(3)SO2After gas is sprayed onto float glass lower surface along a tangential direction, there is biggish coverage area, the guarantor of formation
Cuticula area is also larger, and SO2Other than reacting when contact with float glass, float glass uploads gas in transfer roller
Also it will drive SO during sending2Gas flows a distance, SO during this2Gas continuation reacts with float glass, increases
The thickness of protective film improves protective effect of the protective film to float glass；
(4) transfer roller drives the rotation of piston plate, connecting rod and cam by inner convex platform, makes cam and mandril phase interworking
It closes, realizes the control mobile to piston plate, method is ingenious, and structure is simple；
(5) inner convex platform may also function as the effect of guide rail, limit the cunning of piston plate other than being slidingly sealed with piston plate realization
Dynamic rail mark；(6) it is slidingly sealed between transfer roller and piston plate by inner convex platform realization, guarantees that two compression chambers are respectively independently transported
Row is SO2Gas can be realized while spray and supplement provides possibility；
(7) gas that this programme sprays acts on the lower surface of float glass with faster speed, and float glass process glass can be improved
Glass lower surface forms the efficiency of protective film, and preventing float glass, lower surface is scratched during transportation, and gas cassette for supplying
Supply opening matches realization sealing with transfer roller, and which greatly enhances SO2The utilization rate of gas, reduces SO2Gas is to environment
Pollution；
(8) this programme combines protective film generating means with transportational process, so that float glass is generating protective film
It is transported simultaneously, improves the production efficiency of float glass；
(9) this programme can directly improve existing production line, not need to create, and save to a certain extent
Production cost improves the production efficiency of float glass；
(10) this programme can make SO by adjusting the diameter of transfer roller and the chamfered shape of cam2Gas and float glass
Reaction generates the speed of protective film and the travelling speed of float glass reaches optimal mated condition.
Scheme two: this is the preferred of basic scheme, and the diameter of the stomata is 0.5-1.0cm.Diameter is 0.5-1.0cm's
Stomata is smaller, so that SO2Have when gas is sprayed out of the first compression chamber or the second compression chamber via lesser stomata biggish
Speed, SO2Gas can rapidly react with float glass lower surface.
Scheme three: this is preferred for scheme two, and the stomata of first compression chamber and the stomata of the second compression chamber are uniform
Arrangement.The stomata of the stomata of first compression chamber and the second compression chamber is evenly arranged, and can be avoided float glass in transmit process
It is middle that stomata is completely covered to the case where causing stomata that can not spray gas and float glass formation protective layer.
Scheme four: this is the preferred of basic scheme, and the cam is tubular.Because the movement of transfer roller is circular motion,
Transfer roller is also circular motion, the cam of tubular and the movement rail of cam with the movement that moving cam is done by piston plate and connecting rod
Mark is consistent, enables to cam to cooperate with mandril more preferable.
Scheme five: this is the preferred of basic scheme, and the spring is tension spring.Tension spring can provide extensive for the movement of piston plate
Multiple power.
Scheme six: this is the preferred of basic scheme, the gas cassette for supplying, transfer roller, piston plate, inner convex platform, sealing plate,
Spring and connecting rod are all made of resistance to SO2The material of corrosion is made.SO2With certain corrosivity, using resistance to SO2The material of corrosion
Production associated components can prevent component to be corroded, the service life of elongate member.
Detailed description of the invention
Fig. 1 be the present invention can anti-scratch float glass transport device embodiment structural schematic diagram；
Fig. 2 is the cross-sectional view of transfer roller and gas cassette for supplying in Fig. 1.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail:
Appended drawing reference in Figure of description includes: molten tin bath portion 1, transition roller table 2, annealing kiln 3, transfer roller 4, gas supply
Case 5, the first compression chamber 6, sealing plate 7, the second compression chamber 8, stomata 9, piston plate 10, inner convex platform 11, spring 12, connecting rod 13,
Cam 14, mandril 15, float glass 16, supply opening 17.
Embodiment is substantially as shown shown in Figure 1 and Figure 2:
Can anti-scratch 16 transport device of float glass, be mainly made of transition roller table 2 and annealing kiln 3,2 He of transition roller table
Annealing kiln 3 is sequentially arranged at the right side in molten tin bath portion 1, and several transfer rollers 4 are mounted in transition roller table 2 and annealing kiln 3, transmission
Roller 4 is rotatablely connected on the rack.Transfer roller 4 is hollow and sealing transfer roller 4, and the left end of transfer roller 4 and right end are mounted on
Sealing plate 7.Inner convex platform 11 and piston plate 10 are installed, inner convex platform 11 and piston plate 10 are slidably connected on 4 inner wall of transfer roller.Piston
Transfer roller 4 is divided into the first compression chamber 6 of left end and the second compression chamber 8 of right end, the lower end of the first compression chamber 6 and by plate 10
The upper end of two compression chambers 8 is provided with several stomatas 9 along a tangential direction, and the diameter of stomata 9 is 0.5-1.0cm, diameter 0.5-
The stomata 9 of 1.0cm is smaller, so that SO2When gas is sprayed out of the first compression chamber 6 or the second compression chamber 8 via lesser stomata 9
With biggish speed, SO2Gas can rapidly react with 16 lower surface of float glass.The stomata 9 of first compression chamber 6
With 9 dispersed placement of stomata of the second compression chamber 8, it can be avoided float glass 16 stomata 9 be completely covered in transmit process and lead
The case where causing stomata 9 that can not spray gas and the formation protective layer of float glass 16.
Spring 12 is welded between piston plate 10 and the sealing plate on right side 7, spring 12 is tension spring, can be piston plate 10
It resets and restoring force is provided.10 right side of piston plate is also welded with connecting rod 13, and connecting rod 13 is applied in the sealing plate 7 on right side.Even
The right end and cam 14 of extension bar 13 weld, and cam 14 includes concave point and salient point, and cam 14 is tubular, the cam 14 and cam of tubular
14 motion profile is consistent, enables to cam 14 to cooperate with mandril 15 more preferable；The right end of cam 14 is combined with mandril 15.It passes
The lower section and gas cassette for supplying 5 for sending roller 4 are rotatablely connected, and gas cassette for supplying 5 is for providing SO2Gas, the upper end of gas cassette for supplying 5
It is provided with the supply opening 17 matched with transfer roller 4.Gas cassette for supplying 5, transfer roller 4, piston plate 10, inner convex platform 11, sealing plate 7,
Spring 12 and connecting rod 13 are all made of resistance to SO2The material of corrosion is made.SO2With certain corrosivity, using resistance to SO2Corrosion
Material production associated components can prevent component to be corroded, the service life of elongate member.
When specific works, when initial, the stomata 9 on the first compression chamber 6 be located at 4 lower end of transfer roller and with gas cassette for supplying 5
Supply opening 17 be connected to, the gas in the first compression chamber 6 is supplemented, the stomata 9 on the second compression chamber 8 is located at transfer roller 4
Upper end, mandril 15 and the concave point position of cam 14 offset.
When work, start transfer roller 4, float glass 16 is led from molten tin bath portion 1 onto transfer roller 4, transfer roller 4 turns
Dynamic that the stomata 9 of the first compression chamber 6 is made gradually to go to upper end from lower end, the stomata 9 of the second compression chamber 8 is gradually gone to down from upper end
End.The rotation of transfer roller 4 drives the rotation of piston plate 10, and the rotation of piston plate 10 drives the rotation of connecting rod and cam 14, convex
The point that wheel 14 is in contact with mandril 15 gradually turns to salient point from the concave point of cam 14, and cam 14 is gradually by mandril 15 during this
It squeezes and is moved to the left, the mobile promotion connecting rod 13 and piston plate 10 of cam 14 are also moved to the left, and the first compression chamber 6 is pressed
It contracts, the SO in the first compression chamber 62Gas is extruded and is sprayed onto 16 lower surface of float glass, SO2Gas quickly with float glass 16
The Na ionic reaction of lower surface generates the protective film of sodium sulphate or sodium sulfite；8 space of the second compression chamber is drawn at the same time
Greatly, the pressure in the second compression chamber 8 becomes smaller, the SO in gas cassette for supplying 52Gas enters the by the stomata 9 of the second compression chamber 8
In two compression chambers 8, the gas in the second compression chamber 8 is supplemented.
Transfer roller 4 continues to rotate, and float glass 16 will drive SO during transmitting on transfer roller 42Gas flowing one
Section distance, SO during this2Gas continuation reacts with float glass 16, increases the thickness of protective film, improves protective film
To the protecting effect of float glass 16.When the first compression chamber 6 stomata 9 gradually from upper end go to lower end and with gas cassette for supplying 5
Supply opening 17 be connected to, when the stomata 9 of the second compression chamber 8 gradually goes to upper end from lower end, point that cam 14 is contacted with mandril 15
Concave point gradually is turned to from salient point, under the action of 12 restoring force of spring, cam 14 gradually moves right, the mobile band of cam 14
Dynamic connecting rod 13 also moves right with piston plate 10, so that 6 space of the first compression chamber becomes larger, the pressure in the first compression chamber 6 becomes
Small, the gas in gas cassette for supplying 5 is entered in the first compression chamber 6 by the stomata 9 of the first compression chamber 6, in the first compression chamber 6
Gas supplemented；The second compression chamber 8 is compressed at the same time, the SO in the second compression chamber 82Gas is extruded and is sprayed onto floating
16 lower surface of method glass, SO2Gas quickly generates sodium sulphate or sulfurous acid with the Na ionic reaction of 16 lower surface of float glass
The protective film of sodium.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (6)
1. can anti-scratch float glass transport device, including be connected to molten tin bath portion side transition roller table and annealing kiln, institute in turn
It states and is equipped with the transfer roller of several rotation connections on the rack in transition roller table and the annealing kiln, which is characterized in that is described
Transfer roller bottom is equipped with for providing SO2The gas cassette for supplying of gas, transfer roller are rotatably connected on gas cassette for supplying, the gas
Body cassette for supplying top is provided with the supply opening matched with transfer roller；Transfer roller is hollow and seals, and the both ends of transfer roller are equipped with sealing
Plate；Transfer roller inner wall is equipped with inner convex platform, is combined with the piston plate being slidably connected in transfer roller on the inner convex platform；The work
Seben and transfer roller form the first compression chamber and the second compression chamber, are provided on first compression chamber and second compression chamber
The stomata of stomata, the stomata and the second compression chamber of first compression chamber is positioned opposite；The sealing of piston plate and the second compression chamber
Spring is fixed between plate, one end that piston plate is located at the second compression chamber is fixed with the connecting rod being slidably connected on sealing plate,
The connecting rod has cam far from one end static connection of piston, and the cam includes salient point and concave point, and cam side is combined with
Mandril.
2. it is according to claim 1 can anti-scratch float glass transport device, it is characterised in that: the diameter of the stomata
For 0.5-1.0cm.
3. it is according to claim 2 can anti-scratch float glass transport device, it is characterised in that: first compression chamber
Stomata and the stomata of the second compression chamber be evenly arranged.
4. it is according to claim 1 can anti-scratch float glass transport device, it is characterised in that: the cam be cylinder
Shape.
5. it is according to claim 1 can anti-scratch float glass transport device, it is characterised in that: the spring be draw
Spring.
6. it is according to claim 1 can anti-scratch float glass transport device, it is characterised in that: gas supply
The material that case, transfer roller, piston plate, inner convex platform, sealing plate, spring and connecting rod are all made of resistance to sulfur dioxide corrosion is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611194133.2A CN106746577B (en) | 2016-12-21 | 2016-12-21 | Can anti-scratch float glass transport device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611194133.2A CN106746577B (en) | 2016-12-21 | 2016-12-21 | Can anti-scratch float glass transport device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106746577A CN106746577A (en) | 2017-05-31 |
| CN106746577B true CN106746577B (en) | 2019-02-15 |
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ID=58899085
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611194133.2A Active CN106746577B (en) | 2016-12-21 | 2016-12-21 | Can anti-scratch float glass transport device |
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| CN (1) | CN106746577B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107176787B (en) * | 2017-06-29 | 2023-05-12 | 东旭光电科技股份有限公司 | Roller for float glass annealing process, float glass conveying device and conveying method |
| CN112354769B (en) * | 2020-11-16 | 2022-02-11 | 中国洛阳浮法玻璃集团有限责任公司 | Device for spraying sulfur dioxide on surface of glass |
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| GB1249672A (en) * | 1967-07-12 | 1971-10-13 | Glaverbel | Process and apparatus for coating articles |
| JP2000119033A (en) * | 1998-10-13 | 2000-04-25 | Asahi Glass Co Ltd | Chamber for conveying glass ribbon |
| CN101980980A (en) * | 2008-03-31 | 2011-02-23 | 旭硝子株式会社 | Air-cooled tempering device and air-cooled tempering method for glass plate |
| CN102046542A (en) * | 2008-06-06 | 2011-05-04 | 旭硝子株式会社 | Apparatus and method for producing plate glass |
| CN104250061A (en) * | 2014-09-17 | 2014-12-31 | 中国南玻集团股份有限公司 | Float glass manufacturing device and nozzle thereof |
| CN104261656A (en) * | 2014-09-19 | 2015-01-07 | 中国南玻集团股份有限公司 | Manufacturing device for float glass and protective layer forming device |
| CN204198582U (en) * | 2014-09-17 | 2015-03-11 | 中国南玻集团股份有限公司 | The manufacturing installation of float glass and nozzle |
-
2016
- 2016-12-21 CN CN201611194133.2A patent/CN106746577B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1249672A (en) * | 1967-07-12 | 1971-10-13 | Glaverbel | Process and apparatus for coating articles |
| JP2000119033A (en) * | 1998-10-13 | 2000-04-25 | Asahi Glass Co Ltd | Chamber for conveying glass ribbon |
| CN101980980A (en) * | 2008-03-31 | 2011-02-23 | 旭硝子株式会社 | Air-cooled tempering device and air-cooled tempering method for glass plate |
| CN102046542A (en) * | 2008-06-06 | 2011-05-04 | 旭硝子株式会社 | Apparatus and method for producing plate glass |
| CN104250061A (en) * | 2014-09-17 | 2014-12-31 | 中国南玻集团股份有限公司 | Float glass manufacturing device and nozzle thereof |
| CN204198582U (en) * | 2014-09-17 | 2015-03-11 | 中国南玻集团股份有限公司 | The manufacturing installation of float glass and nozzle |
| CN104261656A (en) * | 2014-09-19 | 2015-01-07 | 中国南玻集团股份有限公司 | Manufacturing device for float glass and protective layer forming device |
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| CN106746577A (en) | 2017-05-31 |
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Effective date of registration: 20190426 Address after: 402761 Qingming Village, Qingba Street, Bishan District, Chongqing Patentee after: CHONGQING CHONGBO ENERGY SAVING GLASS CO., LTD. Address before: Chongqing Huayan Jiulongpo happy village four Patentee before: CHONGQING TIANHE GLASS CO., LTD. |
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Effective date of registration: 20200806 Address after: 054100 south of Xinzhai village, Qiaodong office, Shahe City, Xingtai City, Hebei Province Patentee after: Shahe Safety Industry Co., Ltd Address before: 402761 Qingming Village, Qingba Street, Bishan District, Chongqing Patentee before: CHONGQING CHONGBO ENERGY SAVING GLASS Co.,Ltd. |