CN108793689B - Glass substrate integration overflow shaping controlling means - Google Patents
Glass substrate integration overflow shaping controlling means Download PDFInfo
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- CN108793689B CN108793689B CN201810860932.1A CN201810860932A CN108793689B CN 108793689 B CN108793689 B CN 108793689B CN 201810860932 A CN201810860932 A CN 201810860932A CN 108793689 B CN108793689 B CN 108793689B
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- overflow
- drainage
- brick body
- glass substrate
- overflow brick
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a glass substrate integrated overflow forming control device, which is characterized in that the outer sides of two ends of an overflow brick body are respectively provided with a drainage baffle plate, so that in the forming process of a glass substrate, the drainage baffle plates fixedly arranged at the two ends of the overflow brick body are utilized to prevent glass liquid from extending outwards along the two ends of the overflow brick body, thereby ensuring the accuracy of the production size of the glass substrate, the structure is simple, the glass substrate is not required to be clamped by a cooling clamping mechanism, the lower end of the drainage baffle plate is provided with a diversion angle plate capable of rotating relative to the drainage baffle plate, a transmission lead screw is utilized to drive a driving slide block to move, thereby the rotation angle of the diversion angle plate is shown, the change of the width of the glass substrate is realized, the device is beneficial to being carried out by using the same overflow device when glass substrates with different sizes are produced, the mold is not required to be opened again for designing the drainage angle of the drainage baffle plate, and the device is simple in structure, the operation is convenient, the cost is reduced, the production fluctuation and the forming quality of the glass substrate are ensured, and the production is more stable.
Description
Technical Field
The invention relates to the technical field of substrate glass manufacturing, in particular to a glass substrate integrated overflow forming control device.
Background
Substrate glass used in the field of manufacturing flat panel displays such as general TFT-LCDs (thin film transistor displays) and PDPs (plasma display panels) is manufactured by an overflow down-draw method, and in a molding process, molten glass melted by a glass melting furnace is supplied to a fusion overflow down-draw molding apparatus. The overflow downdraw method is one of substrate glass production technologies, and molten glass overflows from the top of an overflow groove and flows down from the outer surfaces of two sides of the overflow groove respectively, and is converged at the bottom of the groove, and then enters a substrate glass forming area under the traction of a cooling clamping mechanism at two end parts. The overflow downdraw method produces a glass sheet having a surface with excellent flatness and smoothness, compared to other processes, such as the float process and the slot draw process, and does not require the use of a secondary forming process (grinding, polishing, etc.). However, in the conventional glass substrate manufacturing process, the process is generally carried out under the traction of the cooling clamping mechanisms at the two end parts of the overflow groove, the structure is complex, and the cooling clamping mechanisms and the overflow groove are of a split structure, so that deformation is easily generated or unnecessary defects are brought, and further the production fluctuation and the forming quality of the glass substrate are influenced.
The flow guide plate is one of the core platinum parts of the traditional overflow brick and is designed to reduce the width shrinkage of a glass substrate plate and the sensitivity to flow instability. According to the research on the flow path and the tension of the glass melt, the tension is different from the center of the width of the plate to the edge, and the tension of the plate tip of the drainage plate is the largest. The longer the overflow brick root drainage plate region is, the larger the tension of the drainage plate tip is, and the plate width shrinkage can be better dealt with. The board width variation causes the following problems: (1) limiting the glass utilization rate; (2) sideboard weight fluctuations (a decrease in board width or useful board width results in increased sideboard weight); (3) the thickness of the sheet varies (thickness variation can lead to stress problems).
Disclosure of Invention
The invention aims to provide a glass substrate integrated overflow forming control device to overcome the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a glass substrate integrated overflow forming control device is characterized by comprising an overflow brick body, wherein a drainage groove for draining glass liquid is arranged at the upper end of the overflow brick body, the lower end of the overflow brick body is of a V-shaped structure, two drainage baffle plates are respectively arranged on the outer sides of two ends of the overflow brick body, one end of the drainage groove on the overflow brick body is a liquid inlet, the liquid inlet of the drainage groove is connected with the input port of an overflow brick glass liquid conveying device, a diversion angle device is arranged at the lower end of each drainage baffle plate and comprises a diversion angle plate hinged to the lower end of each drainage baffle plate, fixed supports are fixed on the outer sides of the two drainage baffle plates, a transmission lead screw is arranged between the two fixed supports and driven by a driving motor, a driving slide block is arranged on the transmission lead screw, and a slide groove for driving the slide block to slide is arranged at the lower end of the overflow brick body, the upper end of the driving sliding block is arranged in the sliding groove, one end of the driving sliding block is in contact with the outer surface of the flow guide angle plate, and a tension spring is arranged between the outer surface of the flow guide angle plate and the fixed support.
Furthermore, a guide angle a is formed between two flow guide angle plates, and the angle range of the guide angle a is 0-48 degrees.
Furthermore, the other end in the drainage groove of overflow brick body is equipped with and is used for the reposition of redundant personnel piece of glass liquid reposition of redundant personnel to overflow brick body both sides in the drainage groove.
Further, the depth of the drainage groove gradually decreases from one end of the liquid inlet of the drainage groove to the other end of the liquid inlet of the drainage groove.
Further, drainage baffle and overflow brick body structure as an organic whole, drainage baffle and the laminating of overflow brick body outer wall.
Furthermore, the drainage baffle at the liquid inlet of the drainage groove is flush with the upper end of the liquid inlet of the drainage groove.
Furthermore, overflow brick glass liquid conveyor passes through the connecting pipe with drainage groove liquid inlet and is connected.
Furthermore, the drainage baffle and the overflow brick body are made of refractory materials.
Furthermore, the drainage baffle and the overflow brick body are both made of zirconium silicate.
Furthermore, the thickness of the drainage baffle is 30-50 mm; the closest distance between the two flow directing baffles is the basic width of the glass to be produced.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention relates to a glass substrate integrated overflow forming control device, which is characterized in that an overflow brick body is arranged, a drainage groove for draining glass liquid is arranged at the upper end of the overflow brick body, the lower end of the overflow brick body is of a V-shaped structure, two drainage baffle plates are respectively arranged at the outer sides of two ends of the overflow brick body, one end of the drainage groove on the overflow brick body is a liquid inlet, and the liquid inlet of the drainage groove is connected with an input port of an overflow brick glass liquid conveying device, so that in the glass substrate forming process, the glass liquid is prevented from extending along the two ends of the overflow brick body by the drainage baffle plates fixedly arranged at the two ends of the overflow brick body, the precision of the production size of the glass substrate is ensured, the structure is simple, the glass substrate is not required to be clamped by a cooling clamping mechanism, a diversion angle plate capable of rotating relative to the drainage baffle plate is arranged at the lower end of the drainage baffle plate, a driving slide block is driven by a driving screw rod, and the rotation angle of the diversion angle plate is displayed, thereby realize the change of glass substrate plate width, this device can go on with same overflow arrangement when being favorable to not unidimensional glass substrate production, need not the die sinking again and carries out the design of drainage baffle drainage angle, and this device simple structure, convenient operation, the cost is reduced has guaranteed the production fluctuation and the shaping quality of glass substrate, has guaranteed that production is more stable.
Further, the drainage baffle and the overflow brick body are of an integrated structure, the drainage baffle is attached to the outer wall of the overflow brick body, and the stability of the drainage baffle and the overflow brick body in fixing is guaranteed.
Furthermore, the other end in the drainage groove of the overflow brick body is provided with a shunting block for shunting glass liquid to the two sides of the overflow brick body in the drainage groove, so that the glass liquid is conveniently shunted, and the drainage groove is prevented from being easily filled with too much glass.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic structural diagram of the overflow brick body of the invention.
Wherein, 1, overflow brick body; 2. a drainage groove; 3. a drainage baffle; 4. a shunting block; 5. an overflow brick glass liquid conveying device; 6. a connecting pipe; 7. a diversion angle plate; 8. fixing a bracket; 9. a drive screw; 10. driving the slide block; 11. a tension spring.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, a glass substrate integrated overflow forming control device comprises an overflow brick body 1, wherein a drainage groove 2 for draining glass liquid is arranged at the upper end of the overflow brick body 1, the lower end of the overflow brick body 1 is of a V-shaped structure, the lowest end of the overflow brick body 1 is a V-shaped tip, a drainage baffle 3 is respectively arranged at the outer sides of two ends of the overflow brick body 1, one end of the drainage groove 2 on the overflow brick body 1 is a liquid inlet, the liquid inlet of the drainage groove 2 is connected with the input port of an overflow brick glass liquid conveying device 5, and a shunting block 4 is arranged at the other end in the drainage groove 2 of the overflow brick body 1 and used for shunting the glass liquid to two sides of the overflow brick body 1 in the drainage groove 2; the depth of the drainage groove 2 is gradually reduced from one end of the liquid inlet of the drainage groove 2 to the other end, the drainage baffle 3 and the overflow brick body 1 are of an integral structure, the drainage baffle 3 is attached to the outer wall of the overflow brick body 1,
the drainage baffle 3 at the liquid inlet of the drainage groove 2 is flush with the upper end of the liquid inlet of the drainage groove 2;
the overflow brick glass liquid conveying device 5 is connected with the liquid inlet of the drainage groove 2 through a connecting pipe 6,
the drainage baffle 3 and the overflow brick body 1 are made of refractory materials, and the drainage baffle 3 and the overflow brick body 1 are made of zirconium silicate; the thickness of the drainage baffle 3 is 30-50 mm; the closest distance between the two drainage baffles 3 is the basic width of the glass to be prepared;
as shown in fig. 2, the lower ends of two of the drainage baffles 3 are provided with a diversion angle device, the diversion angle device comprises a diversion angle plate 7 hinged to the lower end of the drainage baffle 3, the outer sides of the two drainage baffles 3 are fixed with fixed supports 8, a transmission screw 9 is arranged between the two fixed supports 8, the transmission screw 9 is driven by a driving motor, the transmission screw 9 is provided with a driving slider 10, the lower end of the overflow brick body 1 is provided with a chute for driving the slider 10 to slide, the upper end of the driving slider 10 is arranged in the chute, one end of the driving slider 10 is in contact with the outer surface of the diversion angle plate 7, and a tension spring 11 is arranged between the outer surface of the diversion angle plate 7 and the fixed supports 8; the fixed bracket 8 is fixed on the overflow brick body; the transmission lead screw is utilized to simultaneously drive the two driving slide blocks 10 to move, so that the rotation synchronism of the diversion angle plate 7 is ensured; the diversion angle plate 7 is attached to the surface of the overflow brick body 1 to slide;
wherein a guide angle a is formed between the two diversion angle plates 7, and the angle range of the guide angle a is 0-48 degrees.
The structural principle and the using steps of the invention are further explained in the following with the attached drawings:
in the molding process, molten glass melted by a glass melting furnace is supplied to an overflow brick molten glass conveying device in a melting overflow molding device, then the overflow brick molten glass conveying device is connected with a liquid inlet at one end of a drainage groove 2 on an overflow brick body 1, molten glass is input, when the liquid level in the drainage groove 2 is higher than the upper end surface of the overflow brick body 1, two ends of the overflow brick body 1 are provided with drainage baffles 3, so that the molten glass can only flow out from two sides of the overflow brick body 1 and is bonded at a V-shaped tip at the lower end of the overflow brick body 1 to form a glass substrate, the other end in the drainage groove 2 of the overflow brick body 1 is provided with a shunting block 4, the molten glass can be more effectively controlled to shunt towards two sides of the overflow brick body 1, when glass plates with different required plate widths are manufactured, a lead screw is driven to rotate by a driving motor, so as to drive a driving slide block 10 to slide along a transmission lead screw 9, drive slider 10 forces water conservancy diversion scute 7 to rotate for drainage baffle 3, reduce the distance between two water conservancy diversion scutes 7, thereby realize the wide change of glass substrate board, when needing to enlarge the distance between two water conservancy diversion scutes 7, reverse drive lead screw 9, drive slider 10 reverse motion, water conservancy diversion scute 7 returns under the effect of extension spring, this device can go on with same overflow arrangement when being favorable to not unidimensional glass substrate production, need not the die sinking again and carry out the design at drainage baffle 3 drainage angles, and is convenient simple.
Claims (7)
1. A glass substrate integrated overflow forming control device is characterized by comprising an overflow brick body (1), wherein a drainage groove (2) for draining glass liquid is arranged at the upper end of the overflow brick body (1), the lower end of the overflow brick body (1) is of a V-shaped structure, drainage baffles (3) are respectively arranged on the outer sides of two ends of the overflow brick body (1), one end of the drainage groove (2) on the overflow brick body (1) is a liquid inlet, the liquid inlet of the drainage groove (2) is connected with the input port of an overflow brick glass liquid conveying device (5), a diversion angle device is arranged at the lower end of each drainage baffle (3), the diversion angle device comprises a diversion angle plate (7) hinged to the lower end of each drainage baffle (3), fixed supports (8) are fixed on the outer sides of the two drainage baffles (3), a transmission lead screw (9) is arranged between the two fixed supports (8), and the transmission lead screw (9) is driven by a driving motor, be equipped with drive slider (10) on drive screw (9), overflow brick body (1) lower extreme is equipped with and is used for the gliding spout of drive slider (10), drive slider (10) upper end is arranged in the spout, drive slider (10) one end and water conservancy diversion scute (7) surface contact, be equipped with extension spring (11) between water conservancy diversion scute (7) surface and fixed bolster (8), wherein form guide angle a between two water conservancy diversion scutes (7), guide angle a's angle scope is 0 ~ 48, drainage groove (2) groove depth reduces from drainage groove (2) liquid inlet one end to the other end gradually, drainage baffle (3) and overflow brick body (1) structure as an organic whole, drainage baffle (3) and overflow brick body (1) outer wall laminating.
2. The integrated overflow forming control device for the glass substrate as claimed in claim 1, wherein the drainage baffle (3) at the liquid inlet of the drainage groove (2) is flush with the upper end of the liquid inlet of the drainage groove (2).
3. The integrated overflow forming control device of the glass substrate as claimed in claim 1, wherein the overflow brick glass liquid conveying device (5) is connected with the liquid inlet of the drainage groove (2) through a connecting pipe (6).
4. The integrated overflow forming control device for the glass substrate as claimed in claim 1, wherein the drainage baffle (3) and the overflow brick body (1) are made of refractory materials.
5. The integrated overflow forming control device for the glass substrate as claimed in claim 4, wherein the drainage baffle (3) and the overflow brick body (1) are both made of zirconium silicate.
6. The glass substrate integrated overflow forming control device according to claim 1, wherein the thickness of the flow guide baffle plate (3) is 30-50 mm; the closest distance between the two flow guide baffles (3) is the basic width of the glass to be prepared.
7. The integrated overflow forming control device for the glass substrate as claimed in claim 1, wherein a shunting block (4) for shunting molten glass to two sides of the overflow brick body (1) at the drainage groove (2) is arranged at the other end in the drainage groove (2) of the overflow brick body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810860932.1A CN108793689B (en) | 2018-08-01 | 2018-08-01 | Glass substrate integration overflow shaping controlling means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810860932.1A CN108793689B (en) | 2018-08-01 | 2018-08-01 | Glass substrate integration overflow shaping controlling means |
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| Publication Number | Publication Date |
|---|---|
| CN108793689A CN108793689A (en) | 2018-11-13 |
| CN108793689B true CN108793689B (en) | 2021-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810860932.1A Active CN108793689B (en) | 2018-08-01 | 2018-08-01 | Glass substrate integration overflow shaping controlling means |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109879582B (en) * | 2019-04-08 | 2022-03-22 | 科立视材料科技有限公司 | Overflow brick flow guide structure and processing method thereof |
| CN110174256B (en) * | 2019-06-24 | 2021-08-17 | 科立视材料科技有限公司 | Overflow brick mold flow test device |
| WO2021261374A1 (en) * | 2020-06-25 | 2021-12-30 | Ａｇｃ株式会社 | Molding device |
| CN114524605B (en) * | 2022-03-14 | 2023-09-12 | 成都中光电科技有限公司 | Overflow device for glass production |
| CN115611499B (en) * | 2022-11-01 | 2023-11-17 | 湖南邵虹特种玻璃股份有限公司 | Glass substrate molding size adjusting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005081888A2 (en) * | 2004-02-23 | 2005-09-09 | Pitbladdo Richard B | Sheet width control for overflow downdraw sheet glass forming apparatus |
| CN1964922A (en) * | 2004-06-02 | 2007-05-16 | 康宁股份有限公司 | Isopipe mass distribution for forming glass substrates |
| CN101128399A (en) * | 2005-02-24 | 2008-02-20 | 康宁股份有限公司 | Apparatus and method for making a glass sheet |
| CN203159430U (en) * | 2013-03-25 | 2013-08-28 | 彩虹显示器件股份有限公司 | Novel mould brick for overflow down-draw process |
| CN104507882A (en) * | 2012-05-29 | 2015-04-08 | 康宁股份有限公司 | Apparatus for forming glass with edge directors and methods |
-
2018
- 2018-08-01 CN CN201810860932.1A patent/CN108793689B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005081888A2 (en) * | 2004-02-23 | 2005-09-09 | Pitbladdo Richard B | Sheet width control for overflow downdraw sheet glass forming apparatus |
| CN1964922A (en) * | 2004-06-02 | 2007-05-16 | 康宁股份有限公司 | Isopipe mass distribution for forming glass substrates |
| CN101128399A (en) * | 2005-02-24 | 2008-02-20 | 康宁股份有限公司 | Apparatus and method for making a glass sheet |
| CN104507882A (en) * | 2012-05-29 | 2015-04-08 | 康宁股份有限公司 | Apparatus for forming glass with edge directors and methods |
| CN203159430U (en) * | 2013-03-25 | 2013-08-28 | 彩虹显示器件股份有限公司 | Novel mould brick for overflow down-draw process |
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| CN108793689A (en) | 2018-11-13 |
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