CN117185634A - Tempering cooling device - Google Patents
Tempering cooling device Download PDFInfo
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- CN117185634A CN117185634A CN202310944183.1A CN202310944183A CN117185634A CN 117185634 A CN117185634 A CN 117185634A CN 202310944183 A CN202310944183 A CN 202310944183A CN 117185634 A CN117185634 A CN 117185634A
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- 238000001816 cooling Methods 0.000 title claims abstract description 39
- 238000005496 tempering Methods 0.000 title claims abstract description 26
- 239000011521 glass Substances 0.000 claims abstract description 60
- 230000005540 biological transmission Effects 0.000 claims description 30
- 238000005452 bending Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 7
- 230000007423 decrease Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention relates to a tempering cooling device, which comprises a driving roller set, wherein the driving roller set comprises a plurality of driving rollers, the driving rollers are sequentially distributed along the moving direction of glass, the axial direction of the driving rollers is perpendicular to the moving direction of the glass, the driving rollers are provided with a first end and a second end which are opposite, and the diameter of the first end of the driving rollers is equal to that of the second end of the driving rollers; the diameters of all the driving rollers between the first driving roller and the tail driving roller are gradually reduced from the middle part to the first end and the second end of the driving roller respectively; and the diameter of the middle part of the driving roller is gradually increased in all the driving rollers from the first driving roller to the driving roller positioned at the middle part; the diameter of the middle part of the driving roller is gradually reduced in all the driving rollers from the middle driving roller to the tail driving roller. According to the device provided by the invention, the diameter of the middle part of the driving roller gradually increases and then gradually decreases from the furnace outlet to the lower sheet stage, so that the glass is heated and then slowly transited in cooling, and deformation is avoided.
Description
Technical Field
The invention belongs to the field of glass preparation, and particularly relates to a tempering and cooling device.
Background
In the tempering equipment used in the market at present, glass is heated and cooled in a transmission mode of driving rollers (the diameters of all the driving rollers are consistent), and the air outlet mode of the cooling device is uniform air outlet of air holes. The lower surface of the glass is contacted with the driving roller in the cooling process, and the edge part of the glass is contacted with cooling air, so that the cooling rates of the upper surface and the lower surface of the glass and the edge part and the middle part of the layout are inconsistent. The continuous flat tempering equipment can further enlarge the problem of inconsistent cooling of the surface of the glass because the transmission mode is unidirectional forward transmission, so that the wide-direction side of the glass is bent upwards to generate saddle deformation.
The cooling device of the existing continuous flat tempering equipment can only evenly discharge air and the transmission characteristic that the driving roller contacts the lower surface of glass for transmission, and cannot effectively solve the phenomenon that the wide side of the glass is bent upwards and saddle deformation is generated due to inconsistent cooling of the glass.
Disclosure of Invention
The invention aims to provide a tempering cooling device which solves the problem of saddle-shaped deformation of glass in the cooling process that the glass is bent upwards along the width direction.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the tempering cooling device comprises a driving roller set, wherein the driving roller set comprises a plurality of driving rollers, the driving rollers are sequentially distributed along the moving direction of glass, the driving rollers are arranged in parallel, the axial direction of the driving rollers is perpendicular to the moving direction of the glass, the axial lines of all the driving rollers are positioned on the same plane, the driving rollers are provided with a first end and a second end which are opposite, and the diameter of the first end of each driving roller is equal to that of the second end of each driving roller;
the transmission rollers are positioned at the front end of conveying, the tail transmission rollers are positioned at the tail end of conveying, and the diameters of all the transmission rollers between the first transmission roller and the tail transmission roller are gradually reduced from the middle part of the transmission rollers to the first end and the second end of the transmission rollers respectively; and the diameters of the middle parts of all the driving rollers in the directions from the first driving roller to the middle driving roller are gradually increased; in all the driving rollers located in the directions from the middle driving roller to the tail driving roller, the diameter of the middle part of the driving roller is gradually reduced.
Preferably, the bow of the driving roller located at the middle is equal to the bow of the glass, and the bow of the driving roller located at the middle is calculated by the following formula:
S＝(D-d)/2L；
s is the bow-shaped value of the transmission roller positioned at the most middle, D is the diameter of the middle part of the transmission roller positioned at the most middle, D is the diameters of the first end part and the second end part of the transmission roller positioned at the most middle, and L is the length of the transmission roller positioned at the most middle.
Preferably, the middle diameter D of the driving roller located at the most middle is calculated by the following formula:
D＝2{(S×L)+d/2}；
s is an arc-shaped value of upward bending of the glass width direction edge, d is the diameters of the first end part and the second end part of the driving roller, and L is the length of the driving roller positioned at the middle.
Preferably, the difference between the diameters of the middle parts of the adjacent two driving rollers is equal.
Preferably, the difference between the diameters of the middle parts of the adjacent two driving rollers is 0.05-0.3mm.
Preferably, the number M of driving rollers between the first driving roller and the driving roller located at the middle is calculated by the following formula:
M＝{(D-d)/h}-1；
the number N of the driving rollers between the tail driving rollers and the driving rollers positioned at the middle is calculated by the following formula:
N＝{(D-d)/h}-1；
wherein D is the diameter of the middle part of the driving roller positioned in the middle, D is the diameters of the first end part and the second end part of the driving roller positioned in the middle, and h is the difference value of the diameters of the middle parts of two adjacent driving rollers.
Preferably, the method for setting the size and the number of the driving rolls according to the bow value of the glass with the widthwise edges bent upward includes the following steps:
(1) Calculating an arc value S of upward bending of the glass in the width direction;
(2) Determining the diameter of the middle part of the driving roller positioned at the most middle part according to the measured wide-direction side bow value S;
(3) The size and the number of the driving rollers positioned before and after the middle driving roller are determined, wherein the diameters of the first end part and the second end part of all the driving rollers are equal.
Preferably, in the step (2), the diameter D of the middle portion of the driving roller located at the most middle is calculated by the following formula:
D＝2{(S×L)+d/2}；
s is an arc-shaped value of upward bending of the glass width direction edge, d is the diameters of the first end part and the second end part of the driving roller, and L is the length of the driving roller positioned at the middle.
Preferably, the diameter of the first end part of the driving roller and the diameter of the second end part of the driving roller are in the range of 20-45mm.
Preferably, the diameters of the first driving roller and/or the last driving roller are consistent.
Preferably, the diameter of the first driving roller is gradually reduced from the middle part to the first end and the second end of the first driving roller, and the diameter of the last driving roller is gradually reduced from the middle part to the first end and the second end of the last driving roller.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the tempering cooling device provided by the invention, the middle diameter of the driving roller gradually increases with a certain change value from the furnace outlet towards the lower sheet table, and then gradually decreases with a certain change value, so that the glass product forms slow transition in the cooling cavity after being heated and discharged from the furnace, the gradient is relaxed, and the waveform is prevented from deforming; the problem of saddle shape deformation of the glass, which is bent upwards along the wide side, is corrected by the downward bending radian formed by the driving roller.
Drawings
Fig. 1 is a structural view of a tempering cooling apparatus according to the present invention.
Fig. 2 is a front view of a driving roller of the tempering cooling apparatus according to the present invention;
fig. 3 is a side view of a driving roller of the tempering cooling apparatus according to the present invention;
fig. 4 is a structural diagram of glass.
In the above figures:
1-a heating furnace; 2-air grid blowing rows; 3-first driving roller, 4-middle driving roller, 5-tail driving roller, 6-first driving roller, 7-second driving roller, 8-third driving roller, 9-fourth driving roller, 10-fifth driving roller and 11-sixth driving roller; 12-glass.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings.
Referring to the tempering cooling device shown in fig. 1, the tempering cooling device comprises a driving roller set, a heating furnace 1 and an air grid blowing row 2, wherein the driving roller set comprises a plurality of driving rollers, the driving rollers are sequentially distributed along the moving direction of glass, the driving rollers are arranged in parallel, the axial lines of all the driving rollers are positioned on the same plane, and the axial direction of the driving rollers is perpendicular to the moving direction of the glass. The glass is plate glass.
The driving roller is of a central symmetry structure, the driving roller is provided with a first end and a second end which are opposite (refer to b in fig. 2) and a middle part which is positioned between the first end and the second end (refer to a in fig. 2), the diameter of the first end of the driving roller is equal to that of the second end of the driving roller, the first driving roller is positioned at the front conveying end, the tail driving roller is positioned at the tail conveying end, the middle-most driving roller is positioned between the first driving roller and the tail driving roller, and the diameters of other driving rollers between the first driving roller and the tail driving roller are gradually reduced from the middle part of the driving roller to the first end and the second end of the driving roller respectively, namely, the diameter of the middle part of one driving roller is larger than that of the first end and the second end of the driving roller. Wherein, the diameters of the first driving roller are consistent, and the diameters of the last driving roller are consistent; or the diameter of the middle part of the first driving roller is larger than that of the first end part and the second end part, and the diameter of the middle part of the tail driving roller is larger than that of the first end part and the second end part.
In one embodiment, the diameter of the first end of the driving roller and the diameter of the second end thereof are in the range of 20-45mm.
Further, in the conveying direction, a first driving roller is positioned at the front end of conveying, and the first driving roller is close to the heating furnace and the air grid blowing row; the tail driving rollers are positioned at the tail end of the conveying, namely, glass firstly passes through the first driving roller and finally passes through the tail driving rollers.
The bow of the drive roller located at the middle is equal to the bow of the glass thereon, which is calculated by the following formula:
the glass is heated (the heated glass can be softened), then enters into a cooling cavity of the existing cooling device, a traditional driving roller with the same diameter is placed in the cooling cavity, after the cooling cavity moves on the traditional driving roller for cooling, the wide-direction side of the glass is bent upwards, and the bow-shaped value of the glass at the moment is calculated:
referring to FIG. 4, two end points (c and d) are selected on the upper surface of the glass on the wide side, the distance between the two end points is A, the two end points are connected into a straight line M, the distance between the midpoint of the connecting line of the two end points and the upper surface of the glass is B, and the bow value S is measured Glass =b/a, when the glass is in vertical unstressed condition. For example, assuming a=1000 mm and b=2 mm, the bow value S of the glass Glass ＝2/1000＝2‰。
The bow of the drive roller located at the middle is calculated by the following formula:
S＝(D-d)/2L
s is the bow-shaped value of the driving roller, D is the diameter of the middle part of the driving roller positioned in the middle, D is the diameters of the first end part and the second end part of the driving roller positioned in the middle, and L is the length of the driving roller positioned in the middle.
At the first driving roller (V) 1 ) To the transmission roller (V) In (a) ) Of all the driving rolls in the direction of (a), the diameter of the middle part of the driving roll is gradually increased, i.e. the driving roll (V In (a) ) Is larger than the first driving roller (V 1 ) I.e. forming an upward slope; between the middle-most driving roller and the tail driving roller (V i ) In the direction, the diameter of the middle part of the driving roller gradually decreases to form a downward gradient, namely the diameter of the middle part of the driving roller positioned at the middle is the largest, and the diameter of the middle part of the first driving roller and the diameter of the middle part of the tail driving roller are smaller than the diameter of the middle part of the driving roller positioned at the middle. The advantages of this arrangement are: the middle diameter of the arc-shaped driving roller gradually increases with a certain change value and then gradually decreases with a certain change value from the furnace outlet to the direction of the lower sheet table, so that the glass product forms slow transition in the cooling cavity after the glass product is heated and discharged from the furnace, namely, the gradient is relaxed in the glass movement, and the waveform deformation is avoided.
Namely: among the plurality of driving rollers, there is a difference between the diameters of the middle portions of the adjacent two driving rollers, and preferably, the difference between the diameters of the middle portions of the adjacent two driving rollers is equal. In this case, the first driving roller and the driving roller located between the middle driving rollers, the driving roller located between the middle driving roller and the tail driving roller are symmetrically arranged with the middle driving roller located between the middle driving roller and the tail driving roller as a center, as shown in fig. 1, in one embodiment, the first driving roller 6, the second driving roller 7, the third driving roller 8 are located between the first driving roller 3 and the middle driving roller 4, the fourth driving roller 9, the fifth driving roller 10 and the sixth driving roller 11 are located between the middle driving roller 4 and the tail driving roller 5, wherein the middle diameter of the first driving roller 6 is equal to the middle diameter of the sixth driving roller 11, the middle diameter of the second driving roller 7 is equal to the middle diameter of the fifth driving roller 10, and the middle diameter of the third driving roller 8 is equal to the middle diameter of the fourth driving roller 9.
In some embodiments, the difference in diameter between the middle portions of adjacent two drive rolls is in the range of 0.05-0.3mm, which difference does not cause visible glass deformation, preferably 0.1mm.
If the diameter of the first driving roller is 22mm, the diameter of the middle part of the driving roller adjacent to the first driving roller is 22.1mm in the direction of the first driving roller facing the middle driving roller, and then the diameters of the middle part of the driving roller at the middle are respectively 22.2mm, 22.3mm, 22.4mm and 22.5 mm; the diameter of the middle of the driving roller adjacent to the middle-most driving roller in the direction from the middle-most driving roller to the tail driving roller was 22.9mm, followed by 22.9mm, 22.8mm, 22.7mm, respectively.
The number M of driving rolls between the first driving roll and the driving roll located at the middle is calculated by the following formula:
M＝{(D-d)/h}-1
wherein D is the diameter of the middle part of the driving roller positioned in the middle, D is the diameters of the first end part and the second end part of the driving roller positioned in the middle, and h is the difference value of the diameters of the middle parts of two adjacent driving rollers.
The number N of the driving rollers between the tail driving rollers and the driving roller positioned at the middle is calculated by the following formula:
N＝{(D-d)/h}-1
wherein D is the diameter of the middle part of the driving roller positioned in the middle, D is the diameters of the first end part and the second end part of the driving roller positioned in the middle, and h is the difference value of the diameters of the middle parts of two adjacent driving rollers.
In the tempering and cooling device of the embodiment, the method for setting the size and the number of the driving rollers according to the bow value of the upward bending of the wide-direction side of the glass comprises the following steps:
(1) Calculating an arc value S of upward bending of the glass in the width direction;
(2) The diameter of the middle part of the driving roller positioned at the middle is determined according to the measured wide-direction side bow value S, and the middle diameter D of the driving roller is calculated by the following formula:
D＝2{(S×L)+d/2}
s is an arc-shaped value of upward bending of the glass width direction edge, d is the diameter of the first end part and the second end part of the transmission roller positioned at the most middle, and L is the length of the transmission roller positioned at the most middle.
(3) The size and the number of other driving rollers positioned before and after the middle driving roller are determined, wherein the diameters of the first end part and the second end part of all the driving rollers are equal.
Example 1
(1) Measuring glass bow
The process parameters are adjusted to ensure that the bow value of the longitudinal edge is less than 0.5 per mill, and then the bow value of the wide edge is measured, and the bow value measuring method comprises the following steps: two endpoints are selected on the glass surface of the wide direction edge, the distance between the two endpoints is A, a straight line is drawn at the moment, the distance between the midpoint of the two endpoints and the glass surface is measured to be B, and the bow value=B/A. Assuming a=1000 mm, b=2 mm, the bow value=2/1000=2%o.
(2) Determining the diameter of the middle of the drive roller located at the middle
The bow of the driving roller positioned at the middle is equal to the bow of the glass wide-direction edge, for example, the bow of the glass wide-direction edge is 2 per mill.
The diameter of the middle part of the driving roller positioned at the middle part is calculated as follows:
D＝2{(S×L)+d/2}
assuming that the length of the driving roller is 1500mm and the diameters of the first end and the second end of the driving roller are 20mm, the middle diameter d= { 2%o×1500+20/2} ×2=26 mm of the driving roller.
(3) Determining the number of driving rollers before and after the driving roller positioned at the middle
The diameters of the middle parts of two adjacent driving rollers are set to be different by 0.1mm, the diameter of the middle part of the first driving roller, the diameter of the first end part and the diameter of the second end part of the first driving roller are 20mm, the diameter of the middle part of the tail driving roller, the diameter of the first end part and the diameter of the second end part of the tail driving roller are 20mm, and the middle diameter of the driving roller positioned in the middle is 26mm. The number of driving rollers M = { (D-D)/h } -1, M = (26-20)/0.1-1=59 (root) between the first driving roller and the driving roller located at the most middle means that 59 root means that the first driving roller and the driving roller located at the most middle are not included. The number of driving rollers N = { (D-D)/h } -1, N = (26-20)/0.1-1=59 (root) between the last driving roller and the driving roller located at the middle, and 59 means that the last driving roller and the driving roller located at the middle are not included.
In some embodiments, the driving rollers at the middle are provided in plurality, the driving rollers are sequentially distributed along the moving direction of the glass, and the number of the driving rollers is 2, 3, 4 and above.
In some embodiments, the first drive roller has a uniform diameter and the drive roller adjacent to the first drive roller tapers from a central portion thereof to a first end and a second end thereof, respectively. Or the diameter of the middle part of the first driving roller is different from the diameters of the first end part and the second end part of the first driving roller.
In some embodiments, the first driving roller and the driving roller positioned between the middle driving rollers, and the driving roller positioned between the middle driving roller and the tail driving rollers are symmetrically arranged with the middle driving roller as a center, that is, the diameters of the middle parts of the first driving roller and the tail driving roller are the same, and the diameters of the middle parts of the driving rollers adjacent to the first driving roller are the same as the diameters of the middle parts of the driving rollers adjacent to the tail driving roller.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (10)
1. The tempering and cooling device is characterized by comprising a driving roller set, wherein the driving roller set comprises a plurality of driving rollers, the driving rollers are sequentially distributed along the moving direction of glass, the driving rollers are arranged in parallel, the axial direction of the driving rollers is perpendicular to the moving direction of the glass, the axial lines of all the driving rollers are positioned on the same plane, the driving rollers are provided with a first end and a second end which are opposite, and the diameter of the first end of each driving roller is equal to that of the second end of each driving roller;
the transmission rollers are positioned at the front end of conveying, the tail transmission rollers are positioned at the tail end of conveying, the diameters of all the transmission rollers between the first transmission roller and the tail transmission roller are gradually reduced from the middle part of the transmission rollers to the first end and the second end of the transmission rollers respectively, and the diameters of the middle parts of all the transmission rollers in the directions from the first transmission roller to the middle transmission roller are gradually increased; in all the driving rollers located in the directions from the middle driving roller to the tail driving roller, the diameter of the middle part of the driving roller is gradually reduced.
2. A tempering cooling apparatus according to claim 1, wherein the transmission roller located at the most middle has an arcuate value equal to that of glass.
3. A tempering cooling apparatus according to claim 2, wherein the middle diameter D of the driving roller located at the most middle is calculated by the following formula:
D＝2{(S×L)+d/2}；
s is an arc-shaped value of upward bending of the glass width direction edge, d is the diameters of the first end part and the second end part of the driving roller, and L is the length of the driving roller positioned at the middle.
4. A tempering cooling apparatus according to claim 3, wherein the difference between the diameters of the intermediate portions of the adjacent two of the driving rolls is equal.
5. The tempering cooling apparatus according to claim 4, wherein the difference in diameter of the middle portions of the adjacent two driving rolls is 0.05-0.3mm.
6. A tempering cooling apparatus according to claim 1, wherein the number M of driving rolls between the first driving roll and the driving roll located at the middle is calculated by the following formula:
M＝{(D-d)/h}-1；
the number N of the driving rollers between the tail driving rollers and the driving rollers positioned at the middle is calculated by the following formula:
N＝{(D-d)/h}-1；
wherein D is the diameter of the middle part of the driving roller positioned in the middle, D is the diameters of the first end part and the second end part of the driving roller positioned in the middle, and h is the difference value of the diameters of the middle parts of two adjacent driving rollers.
7. The tempering cooling apparatus according to claim 1, wherein the method of setting the size and the number of the driving rollers according to the bow value of the widthwise side of the glass bent upward comprises the steps of:
(1) Calculating an arc value S of upward bending of the glass in the width direction;
(2) Determining the diameter of the middle part of the driving roller positioned at the most middle part according to the measured wide-direction side bow value S;
(3) The size and the number of the driving rollers positioned before and after the middle driving roller are determined, wherein the diameters of the first end part and the second end part of all the driving rollers are equal.
8. The tempering and cooling apparatus according to claim 1, wherein the diameter of the first end portion of the driving roller and the diameter of the second end portion thereof are in the range of 20-45mm.
9. The tempering and cooling apparatus according to claim 1, wherein the first and/or the last driving rolls have the same diameter.
10. The tempering and cooling apparatus according to claim 1, wherein the diameter of the first driving roller is gradually reduced from the middle portion thereof toward the first and second ends thereof, respectively, and the diameter of the last driving roller is gradually reduced from the middle portion thereof toward the first and second ends thereof, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310944183.1A CN117185634B (en) | 2023-07-28 | Tempering cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310944183.1A CN117185634B (en) | 2023-07-28 | Tempering cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117185634A true CN117185634A (en) | 2023-12-08 |
| CN117185634B CN117185634B (en) | 2024-06-11 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998055412A1 (en) * | 1997-06-03 | 1998-12-10 | Asahi Glass Company, Ltd. | Method and apparatus for bending sheet glass |
| CN101767926A (en) * | 2009-12-21 | 2010-07-07 | 浙江鼎玻自动化设备有限公司 | Unequally-spaced ceramic roller set in glass tempering furnace |
| CN203360269U (en) * | 2013-07-03 | 2013-12-25 | 杭州安全玻璃有限公司 | Production device of triple-curvature toughened glass |
| KR101653194B1 (en) * | 2016-02-18 | 2016-09-01 | (주)에이스안전유리 | Glass forming roller apparatus |
| CN108328911A (en) * | 2018-05-08 | 2018-07-27 | 洛阳格莱斯机械设备有限公司 | A kind of production equipment of waveform tempered glass |
| CN112020480A (en) * | 2019-03-29 | 2020-12-01 | 法国圣戈班玻璃厂 | Conveyance of glass sheets using shaping rollers |
| CN214612165U (en) * | 2021-04-22 | 2021-11-05 | 中联西北工程设计研究院有限公司 | Toughened glass gradual change forming device |
| CN216639285U (en) * | 2021-12-28 | 2022-05-31 | 醴陵旗滨电子玻璃有限公司 | Glass drawing auxiliary device |
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998055412A1 (en) * | 1997-06-03 | 1998-12-10 | Asahi Glass Company, Ltd. | Method and apparatus for bending sheet glass |
| CN101767926A (en) * | 2009-12-21 | 2010-07-07 | 浙江鼎玻自动化设备有限公司 | Unequally-spaced ceramic roller set in glass tempering furnace |
| CN203360269U (en) * | 2013-07-03 | 2013-12-25 | 杭州安全玻璃有限公司 | Production device of triple-curvature toughened glass |
| KR101653194B1 (en) * | 2016-02-18 | 2016-09-01 | (주)에이스안전유리 | Glass forming roller apparatus |
| CN108328911A (en) * | 2018-05-08 | 2018-07-27 | 洛阳格莱斯机械设备有限公司 | A kind of production equipment of waveform tempered glass |
| CN112020480A (en) * | 2019-03-29 | 2020-12-01 | 法国圣戈班玻璃厂 | Conveyance of glass sheets using shaping rollers |
| US20220185718A1 (en) * | 2019-03-29 | 2022-06-16 | Saint-Gobain Glass France | Conveying sheets of glass using shaped rollers |
| CN214612165U (en) * | 2021-04-22 | 2021-11-05 | 中联西北工程设计研究院有限公司 | Toughened glass gradual change forming device |
| CN216639285U (en) * | 2021-12-28 | 2022-05-31 | 醴陵旗滨电子玻璃有限公司 | Glass drawing auxiliary device |
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