CN113735419A - Glass production method and device - Google Patents
Glass production method and device Download PDFInfo
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- CN113735419A CN113735419A CN202110897206.9A CN202110897206A CN113735419A CN 113735419 A CN113735419 A CN 113735419A CN 202110897206 A CN202110897206 A CN 202110897206A CN 113735419 A CN113735419 A CN 113735419A
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- overflow
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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
- C03B17/064—Forming glass sheets by the overflow downdraw fusion process; Isopipes therefor
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Abstract
The embodiment of the invention provides a glass production method and a device, wherein the production method comprises the following steps: overflowing the glass liquid sample through an overflow device to form sample glass; and detecting deformation data of the overflow device, and adjusting the overflow device according to the deformation data of the overflow device so as to reduce or eliminate the deformation of the overflow device. The invention solves the problem of uneven thickness of the glass substrate caused by deformation and sinking of the overflow bricks, and improves the precision of the glass substrate.
Description
Technical Field
The invention relates to the field of photoelectric glass substrate production, in particular to a glass production method and a glass production device.
Background
At present, two methods of overflow downdraw method and float method are available in the production of photoelectric glass substrate. The photoelectric glass substrate is produced by an overflow downdraw method, molten glass flows into an overflow brick, slowly overflows from the bricks on two sides of the overflow brick along the overflow brick to form two-side glass flows, and the two-side glass flows converge into a piece of glass when flowing down to the brick tip of the overflow brick. The width of the glass substrate is mainly determined by the length of the overflow bricks, the longer the overflow bricks are, the wider the glass substrate is, and the high temperature of 1300 ℃ in the muffle furnace is required for ensuring the flow of the molten glass in the overflow bricks. The brick body can deform and droop along with the prolonging of time, the size precision of the overflow brick is changed, the flowing distribution of molten glass liquid in the overflow brick is directly influenced, the thickness of a produced glass substrate is uneven, and the overflow brick is seriously deformed, even is broken and stops production.
Disclosure of Invention
The method strengthens the strength of glass liquid carried by an overflow brick groove through real-time monitoring and overflow brick deformation sinking data fed back by the device, solves the problem of uneven thickness of a glass substrate caused by deformation and sinking of the overflow brick, and improves the precision of the glass substrate.
The inventor has found through research that the reason why the prior glass production method has the problems is that: the overflow brick is made of special ceramic high-temperature resistant materials, two ends of the brick body of the overflow brick in the muffle furnace are supported, creep deformation can occur at high temperature for a long time, the middle part of the brick body can slowly sink in the creep deformation process of the overflow brick, and the longer the brick body is, the larger the deformation is, the more the brick body sinks. The deformation of the brick body changes the size precision of the overflow brick, directly influences the flow distribution of molten glass liquid in the overflow brick, causes the uneven thickness of a produced glass substrate, and also causes the fracture and production stop of the overflow brick due to serious deformation.
In order to solve the above problem, an embodiment of the present invention provides a glass production method, including: overflowing the glass liquid sample through an overflow device to form sample glass; and detecting deformation data of the overflow device, and adjusting the overflow device according to the deformation data of the overflow device so as to reduce or eliminate the deformation of the overflow device.
Optionally, the overflow device is an arch-shaped overflow brick, and the adjusting of the overflow device according to the deformation data of the overflow device includes adjusting an arch angle of the arch-shaped overflow brick according to the deformation data of the arch-shaped overflow brick.
Optionally, the adjusting the arch angle of the arch-shaped overflow brick according to the deformation data of the arch-shaped overflow brick includes: fixing the arched overflow bricks through a pushing device; controlling the ejection strength of the ejection device according to the deformation data of the arched overflow bricks; and adjusting the arch angle of the arch-shaped overflow brick according to the ejection strength, wherein the arch angle of the arch-shaped overflow brick is positively correlated with the ejection strength in a fixed range.
Optionally, detecting deformation data of the arched overflow bricks through a photoelectric sensing device, wherein the deformation data is the arch angles of the arched overflow bricks; and when detecting that the arch angle of the arched overflow brick exceeds the threshold range, adjusting the ejection strength of the ejection device to ensure that the arch angle of the arched overflow brick is within the threshold range.
Optionally, two end faces of the lower portion of the brick body of the arched overflow brick are concave faces, and the pushing top end of the pushing device is a convex face.
Correspondingly, the embodiment of the invention also provides a glass production device, which comprises an overflow device, wherein a glass liquid sample overflows through the overflow device to form sample glass; and the adjusting device is used for detecting the deformation data of the overflow device and adjusting the overflow device according to the deformation data of the overflow device so as to reduce or eliminate the deformation of the overflow device.
Optionally, the overflow device is an arch-shaped overflow brick, and the adjusting of the overflow device according to the deformation data of the overflow device includes adjusting an arch angle of the arch-shaped overflow brick according to the deformation data of the arch-shaped overflow brick.
Optionally, the adjusting the arch angle of the arch-shaped overflow brick according to the deformation data of the arch-shaped overflow brick includes: fixing the arched overflow bricks through a pushing device; controlling the ejection strength of the ejection device according to the deformation data of the arched overflow bricks; and adjusting the arch angle of the arch-shaped overflow brick according to the ejection strength, wherein the arch angle of the arch-shaped overflow brick is positively correlated with the ejection strength in a fixed range.
Optionally, the glass production device further comprises a photoelectric sensing device, the photoelectric sensing device is used for detecting deformation data of the arched overflow bricks, the deformation data is the arch angles of the arched overflow bricks, when the arch angles of the arched overflow bricks are detected to exceed a threshold range, the ejection strength of the ejection device is adjusted, and the arch angles of the arched overflow bricks are enabled to be within the threshold range
Optionally, two end faces of the lower portion of the brick body of the arched overflow brick are concave faces, and the pushing top end of the pushing device is a convex face.
Through the technical scheme, the overflow device such as the overflow brick deformation sinking data is monitored in real time and fed back by the device, so that the strength of glass liquid borne by the overflow brick groove is enhanced, the deformation sinking of the overflow brick is slowed down, the problem of uneven thickness of a glass substrate caused by the deformation and sinking of the overflow brick is solved, and the precision of the glass substrate is improved.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIGS. 1 and 2 are schematic flow diagrams of a glass manufacturing process of the present invention;
FIG. 3 is a schematic view of a conventional overflow glass substrate molding;
FIG. 4 is a schematic diagram of a conventional overflow glass substrate after deformation;
FIG. 5 is a schematic view of an overflow brick two-end ejection device of the present invention;
fig. 6 is a three-view diagram of an overflow brick added with a photoelectric sensing device.
Description of the reference numerals
1 overflow brick 2 overflow brick tip
3 glass 4 pushing device
5 photoelectric probe
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
FIG. 1 is a schematic flow diagram of a glass manufacturing method of the present invention, as shown in FIG. 1, and step S101 is to detect deformation data of the overflow device. The overflow device is an arch-shaped overflow brick, and the initial fixed state of the arch-shaped overflow brick keeps a certain arch height, and the arch height is determined according to the sagging amount of the overflow brick, and is preferably 10mm higher than the parallel surface. LIPS photoelectric glass substrate production mainly adopts and uses the overflow brick, as shown in the present overflow glass substrate shaping sketch map shown in figure 3, overflow brick 1 of the prior art is the horizontal fixed state, the glass liquid sample overflows through the overflow device, the glass liquid sample is the molten glass, form sample glass, the glass liquid sample is downward gathered into a piece of glass 3 through overflow brick tip 2, the overflow brick is made of special ceramic high temperature resistant material, there is a support at both ends of the overflow brick body in the muffle furnace, creep can occur under high temperature for a long time, the middle part of the brick body can slowly sink in the creep deformation process of the overflow brick, the longer the brick body, the more the brick body sinks, figure 4 is the schematic map after the deformation of the present overflow glass substrate, as shown in the figure, overflow brick 1 has a certain degree of sinking, the brick body deformation has changed the size precision of the overflow brick and directly influences the flow distribution of the molten glass liquid in the overflow brick, the thickness of the produced glass substrate is not uniform, and the overflow bricks are broken and stop production due to serious deformation. According to the invention, through the design of the arch overflow brick, the strength of glass liquid carried by an overflow brick groove is enhanced, and the deformation sinking time is slowed down, fig. 5 is a schematic view of a pushing device at two ends of the overflow brick, as shown in fig. 5, the overflow brick 1 is of an upper arch type (convex type), the arch overflow brick is fixed through a pushing device 4, two end surfaces of the lower part of a brick body of the arch overflow brick are concave surfaces, the pushing top end of the pushing device is a convex surface, and a protruding head at the pushing top end of the pushing device is in concave-convex fit with the concave surfaces at two ends of the lower part of the overflow brick. Preferably, a photoelectric probe 5 is installed at the brick tip 2 of the overflow brick, the photoelectric probe 5 is a photoelectric sensing device (other types of angle sensors can also be used for detecting deformation data of the arch-shaped overflow brick), deformation data of the arch-shaped overflow brick is detected through the photoelectric sensing device, and the deformation data is an arch angle of the arch-shaped overflow brick. The photoelectric sensing device monitors the sinking state of the brick body in real time and feeds back data to the PLC industrial personal computer.
Step S102 is to adjust the overflow device according to the deformation data of the overflow device to reduce or eliminate the deformation of the overflow device. The adjusting the overflow device according to the deformation data of the overflow device comprises adjusting the arch angle of the arch-shaped overflow brick according to the deformation data of the arch-shaped overflow brick, and comprises the following steps: fixing the arched overflow bricks through a pushing device; controlling the ejection strength of the ejection device according to the deformation data of the arched overflow bricks; and adjusting the arch angle of the arch-shaped overflow brick according to the ejection strength, wherein the arch angle of the arch-shaped overflow brick is positively correlated with the ejection strength in a fixed range. And when detecting that the arch angle of the arched overflow brick exceeds the threshold range, adjusting the ejection strength of the ejection device to ensure that the arch angle of the arched overflow brick is within the threshold range.
Fig. 2 is a specific embodiment of fig. 1, as shown in fig. 2, step 201 is to detect the arch angle of the overflow brick, and preferably detect deformation data of the arch-shaped overflow brick by a photoelectric sensing device, where the deformation data is the arch angle of the arch-shaped overflow brick, and the photoelectric sensing probes are located at brick tips on both sides of the overflow brick, and fig. 6 is a three-view diagram of the overflow brick with the photoelectric sensing device added. And uploading the detected information of the arch angle of the overflow brick to a PLC or other central control equipment in real time. Step S202 is to judge whether the arch angle of the overflow brick exceeds a threshold value range, wherein the threshold value range is determined according to the sagging amount, and the preferred range is less than 5 mm. When the sagging amount of the overflow brick does not exceed the threshold range, the overflow brick does not sink or sinks in a small range at the moment, the glass forming is not influenced, and the ejection device keeps the original state and is not adjusted; when the sag of the overflow brick exceeds the threshold range, the sag degree of the overflow brick at the moment is fast influenced or the overflow forming of the glass is influenced, and the ejection strength of the ejection device needs to be adjusted in time through a PLC (programmable logic controller) or other central control equipment until the arch angle of the overflow brick is within the threshold range. Wherein the arch angle of arch overflow brick in fixed range with ejection intensity is positive correlation, in fixed range, the arch angle of arch overflow brick increases along with ejection intensity's increase, fixed range by when the principle of overflow brick's material, length, area, weight etc. decision is that the overflow brick receives high temperature to influence flagging, upwards pushes up overflow brick arch through the presumption device, keeps the level, reduces the flagging volume, through photoelectric sensing device 5 to overflow brick 1 real time monitoring, acquires the sunken data of overflow brick deformation and with the real-time line analytic data of PLC industrial computer, the intensity of PLC industrial computer real time control ejection device ejection simultaneously to strengthen the arch design effect of arch overflow brick, reach the purpose that slows down overflow brick deformation extension overflow brick life with this.
The embodiment of the invention also provides a glass production device, which comprises: the overflow device is used for overflowing the glass liquid sample to form sample glass; and the adjusting device is used for detecting the deformation data of the overflow device and adjusting the overflow device according to the deformation data of the overflow device so as to reduce or eliminate the deformation of the overflow device. Through installing the photoelectric sensing device on the production furnace body, the deformation data of real-time supervision overflow brick according to this deformation data adjustment overflow brick position in the stove, has strengthened the intensity that overflow brick groove bore glass liquid, slows down that the overflow brick deformation sinks, has solved the deformation of overflow brick and has sunk the inhomogeneous problem of glass substrate thickness that leads to, has improved the precision of glass substrate.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.
Claims (10)
1. A method of producing glass, comprising:
overflowing the glass liquid sample through an overflow device to form sample glass;
and detecting deformation data of the overflow device, and adjusting the overflow device according to the deformation data of the overflow device so as to reduce or eliminate the deformation of the overflow device.
2. The method of claim 1, wherein the overflow device is an arched overflow brick, and wherein adjusting the overflow device based on deformation data of the overflow device comprises adjusting an arch angle of the arched overflow brick based on the deformation data of the arched overflow brick.
3. The method of claim 2, wherein said adjusting an arch angle of said arch-shaped overflow bricks based on deformation data of said arch-shaped overflow bricks comprises:
fixing the arched overflow bricks through a pushing device;
controlling the ejection strength of the ejection device according to the deformation data of the arched overflow bricks;
and adjusting the arch angle of the arch-shaped overflow brick according to the ejection strength, wherein the arch angle of the arch-shaped overflow brick is positively correlated with the ejection strength in a fixed range.
4. The method of claim 3,
detecting deformation data of the arched overflow bricks through a photoelectric sensing device, wherein the deformation data is the arch angle of the arched overflow bricks;
and when detecting that the arch angle of the arched overflow brick exceeds the threshold range, adjusting the ejection strength of the ejection device to ensure that the arch angle of the arched overflow brick is within the threshold range.
5. The method of claim 3,
the two end faces of the lower part of the arched overflow brick are concave faces, and the pushing top end of the pushing device is a convex face.
6. A glass manufacturing apparatus, comprising:
the overflow device is used for overflowing the glass liquid sample to form sample glass;
and the adjusting device is used for detecting the deformation data of the overflow device and adjusting the overflow device according to the deformation data of the overflow device so as to reduce or eliminate the deformation of the overflow device.
7. The apparatus of claim 6, wherein the overflow device is an arched overflow brick, and wherein adjusting the overflow device based on deformation data of the overflow device comprises adjusting an arch angle of the arched overflow brick based on the deformation data of the arched overflow brick.
8. The apparatus of claim 7, wherein said adjusting an arch angle of said arch-shaped overflow bricks based on deformation data of said arch-shaped overflow bricks comprises:
fixing the arched overflow bricks through a pushing device;
controlling the ejection strength of the ejection device according to the deformation data of the arched overflow bricks;
and adjusting the arch angle of the arch-shaped overflow brick according to the ejection strength, wherein the arch angle of the arch-shaped overflow brick is positively correlated with the ejection strength in a fixed range.
9. The apparatus of claim 8, further comprising a photoelectric sensing device for detecting deformation data of the arch-shaped overflow brick, wherein the deformation data is a crown angle of the arch-shaped overflow brick, and when the crown angle of the arch-shaped overflow brick is detected to be beyond a threshold range, the ejection strength of the ejection device is adjusted to meet the crown angle of the arch-shaped overflow brick within the threshold range.
10. The apparatus of claim 8,
the two end faces of the lower part of the arched overflow brick are concave faces, and the pushing top end of the pushing device is a convex face.
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| CN202110897206.9A CN113735419A (en) | 2021-08-05 | 2021-08-05 | Glass production method and device |
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| CN202110897206.9A CN113735419A (en) | 2021-08-05 | 2021-08-05 | Glass production method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634293A (en) * | 2022-02-21 | 2022-06-17 | 河北光兴半导体技术有限公司 | Overflow brick mounting device and using method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110750883A (en) * | 2019-09-29 | 2020-02-04 | 彩虹显示器件股份有限公司 | Design optimization method for bottom curve of overflow brick groove |
| CN113185092A (en) * | 2021-05-28 | 2021-07-30 | 河南旭阳光电科技有限公司 | Overflow brick and overflow forming device for glass substrate production |
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- 2021-08-05 CN CN202110897206.9A patent/CN113735419A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110750883A (en) * | 2019-09-29 | 2020-02-04 | 彩虹显示器件股份有限公司 | Design optimization method for bottom curve of overflow brick groove |
| CN113185092A (en) * | 2021-05-28 | 2021-07-30 | 河南旭阳光电科技有限公司 | Overflow brick and overflow forming device for glass substrate production |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114634293A (en) * | 2022-02-21 | 2022-06-17 | 河北光兴半导体技术有限公司 | Overflow brick mounting device and using method thereof |
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