CN102992591A - Control method of molding shape in glass base plate production - Google Patents
Control method of molding shape in glass base plate production Download PDFInfo
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- CN102992591A CN102992591A CN2012104481228A CN201210448122A CN102992591A CN 102992591 A CN102992591 A CN 102992591A CN 2012104481228 A CN2012104481228 A CN 2012104481228A CN 201210448122 A CN201210448122 A CN 201210448122A CN 102992591 A CN102992591 A CN 102992591A
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- reactive force
- control method
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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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- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention relates to a control method of a molding shape in glass base plate production, which is characterized in that the control method comprises the following steps of: applying a first acting force (F1) and a second acting force (F2) to a glass plate from the left side of the glass plate along the horizontal direction between a stress removing zone and a cutting device zone, and simultaneously applying a third acting force (F3) and a fourth acting force (F4) to the glass plate from the right side of the glass plate along the horizontal direction. The control method used in the glass base plate production has the advantages that 1 the transection stability of the glass plate is improved so that the cutting loss is greatly reduced, and production yield is improved; 2 the form of glass plate is stable between the stress removing zone and a cutting device zone so that the warping and stress stability is greatly improved; and 3 the size adjustment of the molding shape for the form of the glass plate between the stress removing zone and a cutting device zone is favorable for the control on the deflection of the glass plate.
Description
Technical field
The present invention relates to the control method of forming shape in a kind of glass substrate production.
Background technology
Sheet glass mainly refers to the liquid crystal glass base for flat panel display, and this glass substrate has the characteristics such as high heat resistance, high-clarity, agent of low hygroscopicity, high flat degree, good solvent resistance, scratch resistance performance, anti-strongly-acid, strong basicity resisting.Sheet glass thickness is between 0.3mm～1.0mm.
The liquid crystal flat-panel technique of display is strict to the size requirements of glass substrate stress, if base plate stress can not guarantee in acceptability limit, then consist of the problems such as substrate occurs bursting, distortion in producer's manufacturing processed, can directly have influence on like this production of indicating meter, even if put on market also may be in this use procedure of consumption glass-board surface distortion or crackle occurs, directly affect the display effect of liquid-crystal display, therefore anneal in the how to do well liquid crystal glass base production process, it is very important effectively to eliminate stress.
At present in the method for several maturations of production LCD glass substrate, the most popular with the overflow method of forming, also relative ripe, but this technique requires all very high to the control of production process and production environment, especially in process of production, the unstable product loss rate that causes of quality product is higher, the consistence of sheet glass is relatively poor, cause above problem to be because sheet glass is between the process that eliminates stress is cut to cooling, the form of sheet glass is stable not, and namely the forming shape of sheet glass changes continuously at stress relief area.
Summary of the invention
The purpose of this invention is to provide a kind of glass substrate produce in the control method of forming shape, can improve quality stability and the consistence of glass substrate product.
The control method of forming shape during a kind of glass substrate is produced, its special feature is, comprise the steps: in stress relief zone between the cutting unit district, apply the first reactive force and the second reactive force from sheet glass left side along continuous straight runs to sheet glass, apply simultaneously the 3rd reactive force and the 4th reactive force from sheet glass right side along continuous straight runs to sheet glass.
Wherein the first reactive force, the second reactive force, the 3rd reactive force and the 4th reactive force are all greater than 0 and less than or equal to 50N.
Wherein the first reactive force, the second reactive force, the 3rd reactive force and the 4th reactive force are positioned at same plane substantially, allow four power to have gap in the level height direction in actual the use, and this gap should be less than 50mm.
Wherein the first reactive force and the second reactive force spacing in the horizontal direction are 1000～2000mm, and the 3rd reactive force and the 4th reactive force lay respectively at the both sides of the first reactive force and the second reactive force, and the 3rd reactive force and the first reactive force spacing in the horizontal direction are 10～50mm, and the 4th reactive force and the second reactive force spacing in the horizontal direction are 10～50mm.
Production has following advantage for glass substrate to adopt the inventive method: 1, improved sheet glass crosscut stability, greatly reduced the cutting rate of loss, improved production output; 2, the sheet glass form is stablized to the zone of cutting unit in stress relief zone, greatly improves warpage, stress stability; 3, by adjusting the sheet glass form in the size of stress relief zone forming shape to the zone of cutting unit, be conducive to the control of sheet glass amount of deflection; 4, by adjusting sheet glass in the form of stress relief zone to the zone of cutting unit, be conducive to sheet glass and process in the carrying of rear operation; By adjusting sheet glass in the form of stress relief zone to the zone of cutting unit, reduced sheet glass and in the rear operation course of processing, produced scuffing.
Description of drawings
Accompanying drawing 1 is the shaping glass sheets shape synoptic diagram in the background technology of the present invention;
Accompanying drawing 2 is for applying the synoptic diagram of reactive force to sheet glass in the inventive method;
Accompanying drawing 3 is the schematic diagram of the inventive method.
Embodiment
Shown in Fig. 2,3, the present invention is the control method of forming shape during a kind of glass substrate is produced, comprise the steps: in stress relief zone between the cutting unit district, apply the first directed force F 1 and the second directed force F 2 from sheet glass left side along continuous straight runs to sheet glass, apply simultaneously the 3rd reactive force F3 and the 4th directed force F 4 from sheet glass right side along continuous straight runs to sheet glass.
Wherein the first directed force F 1 and the second directed force F 2 spacing h2 in the horizontal direction are 1000～2000mm, and the 3rd reactive force F3 and the 4th directed force F 4 lay respectively at the upper and lower both sides of the first directed force F 1 and the second directed force F 2, and the 3rd reactive force F3 and the first directed force F 1 spacing h1 in the horizontal direction are 10～50mm, and the 4th directed force F 4 and the second directed force F 2 spacing h3 in the horizontal direction are 10～50mm.
As shown in Figure 1, for glass substrate in the background technology (sheet glass) in stress relief zone to the scope between the cutting unit zone, cross section sectional view in its downdraw process.The state that does not apply the external force front glass panel is in a kind of random shape and constantly changes, four external force by direction among Fig. 2, can change glass substrate in the shape of stress relief zone to the cutting unit regional extent, apply external force after, the shape of glass substrate is as shown in Figure 3.
Embodiment 1:
Wherein the first directed force F 1 is that 10N and the 4th directed force F 4 are 1N for 25N, the second directed force F 2 for 30N, the 3rd reactive force F3, and the first directed force F 1 apart from foundation ground 1800mm, the second directed force F 2 apart from foundation ground 300mm, the 3rd reactive force F3 apart from ground 1820mm and the 4th directed force F 4 apart from foundation ground 270mm.Can be stabilized under the specific shape in downdraw process by the method glass substrate.
Claims (4)
1. the control method of forming shape during a glass substrate is produced, it is characterized in that, comprise the steps: in stress relief zone between the cutting unit district, apply the first reactive force (F1) and the second reactive force (F2) from sheet glass left side along continuous straight runs to sheet glass, apply simultaneously the 3rd reactive force (F3) and the 4th reactive force (F4) from sheet glass right side along continuous straight runs to sheet glass.
2. the control method of forming shape during a kind of glass substrate as claimed in claim 1 is produced, it is characterized in that: wherein the first reactive force (F1), the second reactive force (F2), the 3rd reactive force (F3) and the 4th reactive force (F4) are all greater than 0 and less than or equal to 50N.
3. the control method of forming shape during a kind of glass substrate as claimed in claim 1 is produced, it is characterized in that: wherein the first reactive force (F1), the second reactive force (F2), the 3rd reactive force (F3) and the 4th reactive force (F4) are positioned at same plane.
4. the control method of forming shape during a kind of glass substrate as claimed in claim 1 is produced, it is characterized in that: wherein the first reactive force (F1) and the second reactive force (F2) spacing in the horizontal direction are 1000 ~ 2000mm, and the 3rd reactive force (F3) and the 4th reactive force (F4) lay respectively at the both sides of the first reactive force (F1) and the second reactive force (F2), and the 3rd reactive force (F3) and the first reactive force (F1) spacing in the horizontal direction are 10 ~ 50mm, and the 4th reactive force (F4) and the second reactive force (F2) spacing in the horizontal direction are 10 ~ 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210448122.8A CN102992591B (en) | 2012-11-09 | 2012-11-09 | Control method of molding shape in glass base plate production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210448122.8A CN102992591B (en) | 2012-11-09 | 2012-11-09 | Control method of molding shape in glass base plate production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102992591A true CN102992591A (en) | 2013-03-27 |
| CN102992591B CN102992591B (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210448122.8A Active CN102992591B (en) | 2012-11-09 | 2012-11-09 | Control method of molding shape in glass base plate production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105884174A (en) * | 2016-04-12 | 2016-08-24 | 芜湖东旭光电科技有限公司 | Control method and device for adjusting shape of glass substrate |
| CN106380062A (en) * | 2016-10-31 | 2017-02-08 | 彩虹（合肥）液晶玻璃有限公司 | Device for adjusting shape of glass plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928100A (en) * | 2009-06-17 | 2010-12-29 | 康宁股份有限公司 | The control of glass ribbon sinuousness |
| CN202038969U (en) * | 2009-10-28 | 2011-11-16 | 康宁股份有限公司 | Melting pull-down machine |
| CN102432158A (en) * | 2010-08-31 | 2012-05-02 | 康宁股份有限公司 | Apparatus and method for making glass sheet with improved sheet stability |
-
2012
- 2012-11-09 CN CN201210448122.8A patent/CN102992591B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928100A (en) * | 2009-06-17 | 2010-12-29 | 康宁股份有限公司 | The control of glass ribbon sinuousness |
| CN202038969U (en) * | 2009-10-28 | 2011-11-16 | 康宁股份有限公司 | Melting pull-down machine |
| CN102432158A (en) * | 2010-08-31 | 2012-05-02 | 康宁股份有限公司 | Apparatus and method for making glass sheet with improved sheet stability |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105884174A (en) * | 2016-04-12 | 2016-08-24 | 芜湖东旭光电科技有限公司 | Control method and device for adjusting shape of glass substrate |
| CN106380062A (en) * | 2016-10-31 | 2017-02-08 | 彩虹（合肥）液晶玻璃有限公司 | Device for adjusting shape of glass plate |
| CN106380062B (en) * | 2016-10-31 | 2018-12-28 | 彩虹（合肥）液晶玻璃有限公司 | A kind of device adjusting glass sheet shape |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102992591B (en) | 2015-05-27 |
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