CN102992591B - 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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- CN102992591B CN102992591B CN201210448122.8A CN201210448122A CN102992591B CN 102992591 B CN102992591 B CN 102992591B CN 201210448122 A CN201210448122 A CN 201210448122A CN 102992591 B CN102992591 B CN 102992591B
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- reactive force
- glass plate
- control method
- horizontal direction
- glass
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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 the production of a kind of glass substrate.
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, resistance to strongly-acid, strong basicity resisting.Sheet glass thickness is between 0.3mm ~ 1.0mm.
The size requirements of liquid crystal flat-panel technique of display to glass substrate stress is strict, if base plate stress can not ensure in acceptability limit, then form the problems such as bursting appears in substrate in producer's manufacturing processed, distortion, such meeting directly has influence on the production of indicating meter, also even if put on market may be out of shape or occur crackle by glass-board surface in this use procedure of consumption, the direct display effect affecting liquid-crystal display, therefore how to carry out in liquid crystal glass base production process and anneal, effectively eliminate stress very important.
In the method for several maturations of current production LCD glass substrate, the most popular with the overflow method of forming, also relative maturation the most, but the control overflow of this technique to production process and production environment is all very high, especially in process of production, the instability of quality product causes product loss rate higher, the consistence of sheet glass is poor, above problem is caused to be because sheet glass is eliminating stress between process to cooling cutting, the form of sheet glass is stable not, and namely the forming shape of sheet glass is at stress relief area consecutive variations.
Summary of the invention
The object of this invention is to provide the control method of forming shape in the production of a kind of glass substrate, quality stability and the consistence of glass substrate product can be improved.
The control method of forming shape in a kind of glass substrate production, its special feature is, comprise the steps: between stress relief zone to cutting unit district, on the left of sheet glass, apply the first reactive force and the second reactive force to sheet glass in the horizontal direction, on the right side of sheet glass, apply the 3rd reactive force and the 4th reactive force to sheet glass in the horizontal direction simultaneously.
Wherein the first reactive force, the second reactive force, the 3rd reactive force and the 4th reactive force are all greater than 0 and are 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 generally within same plane, and allow four power to there is gap in level height direction in actual use, this gap should be less than 50mm.
Wherein the first reactive force and the second reactive force spacing are in the horizontal direction 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 are in the horizontal direction 10 ~ 50mm, the 4th reactive force and the second reactive force spacing are in the horizontal direction 10 ~ 50mm.
Adopt the inventive method to produce for glass substrate and have following advantage: 1, improve sheet glass crosscut stability, greatly reduce cutting rate of loss, improve production output; 2, sheet glass form is stable in the region of stress relief zone to cutting unit, greatly improves warpage, stress stability; 3, by the size of adjustment sheet glass form forming shape in the region of stress relief zone to cutting unit, the control of sheet glass amount of deflection is conducive to; 4, by the form of adjustment sheet glass in the region of stress relief zone to cutting unit, be conducive to sheet glass and process in the carrying of rear operation; By adjustment sheet glass in stress relief zone to the form in the region of cutting unit, decrease sheet glass and produce scuffing in the rear operation course of processing.
Accompanying drawing explanation
Accompanying drawing 1 is the shaping glass sheets schematic shapes in background technology of the present invention;
Accompanying drawing 2 is the schematic diagram applying reactive force in the inventive method to sheet glass;
Accompanying drawing 3 is the schematic diagram of the inventive method.
Embodiment
As shown in Figure 2,3, the present invention is the control method of forming shape during a kind of glass substrate is produced, comprise the steps: between stress relief zone to cutting unit district, on the left of sheet glass, apply the first directed force F 1 and the second directed force F 2 to sheet glass in the horizontal direction, on the right side of sheet glass, apply the 3rd reactive force F3 and the 4th directed force F 4 to sheet glass in the horizontal direction simultaneously.
Wherein the first directed force F 1 and the second directed force F 2 spacing h2 are in the horizontal direction 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 is in the horizontal direction 10 ~ 50mm, the 4th directed force F 4 and the second directed force F 2 spacing h3 are in the horizontal direction 10 ~ 50mm.
As shown in Figure 1, in the scope of glass substrate in background technology (sheet glass) between stress relief zone to cutting unit region, a sectional view of cross section in its downdraw process.The state not applying external force front glass panel is in a kind of random shape and constantly changes, by four external force in direction in Fig. 2, can change glass substrate in stress relief zone to the shape in cutting unit regional extent, after applying external force, the shape of glass substrate as shown in Figure 3.
Embodiment 1:
Wherein the first directed force F 1 is 25N, the second directed force F 2 is 1N for 30N, the 3rd reactive force F3 are 10N and the 4th directed force F 4, 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 distance ground 1820mm and the 4th directed force F 4 apart from foundation ground 270mm.Under specific shape can being stabilized in by the method glass substrate in downdraw process.
Claims (1)
1. a glass substrate produce in the control method of forming shape, it is characterized in that, comprise the steps: between stress relief zone to cutting unit district, on the left of sheet glass, apply the first reactive force (F1) and the second reactive force (F2) to sheet glass in the horizontal direction, on the right side of sheet glass, apply the 3rd reactive force (F3) and the 4th reactive force (F4) to sheet glass in the horizontal direction simultaneously;
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 are less than or equal to 50N;
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;
Wherein the first reactive force (F1) and the second reactive force (F2) spacing are in the horizontal direction 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 are in the horizontal direction 10 ~ 50mm, the 4th reactive force (F4) and the second reactive force (F2) spacing are in the horizontal direction 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 |
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| CN102992591A CN102992591A (en) | 2013-03-27 |
| CN102992591B true 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105884174B (en) * | 2016-04-12 | 2019-04-26 | 芜湖东旭光电科技有限公司 | For adjusting the control method and device of glass substrate shape |
| 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 |
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 |
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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 |
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| CN102992591A (en) | 2013-03-27 |
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