CN216236655U - Overflow brick for glass substrate production and glass production equipment - Google Patents
Overflow brick for glass substrate production and glass production equipment Download PDFInfo
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- CN216236655U CN216236655U CN202122603458.4U CN202122603458U CN216236655U CN 216236655 U CN216236655 U CN 216236655U CN 202122603458 U CN202122603458 U CN 202122603458U CN 216236655 U CN216236655 U CN 216236655U
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Abstract
The utility model relates to the field of glass substrate production equipment, and discloses an overflow brick for glass substrate production and glass production equipment, wherein the overflow brick for glass substrate production comprises an upper brick body and a lower brick body, the upper brick body is provided with an overflow groove for containing molten glass, the overflow groove is provided with a groove edge suitable for molten glass overflow, and a convex part is formed in the middle part of the groove edge; the lower brick body is arranged below the upper brick body, and the lower brick body forms a brick tip along the gravity direction. According to the utility model, the convex part is formed in the middle part of the groove edge, when the overflow brick generates the deformation that the middle part sinks in a high-temperature environment, the concave part formed by the sinking of the groove edge along the middle part can be offset by the deformation of the convex part along with the sinking of the groove edge along the middle part, namely the convex part can make up the concave space, so that the overflow amount of molten glass can still meet the overflow requirement after the overflow brick deforms.
Description
Technical Field
The utility model relates to the field of glass substrate production equipment, in particular to an overflow brick for glass substrate production and glass production equipment.
Background
The glass substrate is a thin glass sheet with an extremely smooth surface, the thin glass sheet is usually produced by an overflow down-draw method, an overflow brick is an indispensable component of the overflow down-draw method, the overflow brick is provided with an overflow groove for containing molten glass, and a brick tip positioned at the lower part of the overflow groove, the overflow brick is positioned in a muffle furnace during use, the molten glass enters the overflow groove, then overflows from grooves at two sides of the overflow groove, flows downwards along two side surfaces of the overflow brick and is combined at the brick tip, and the glass substrate is formed by processes of stretching, annealing and the like. In the production process, in order to ensure the flow of the molten glass on the overflow bricks, the muffle furnace is required to keep a high temperature of 1300 ℃, but the overflow bricks are deformed when being positioned in the temperature environment for a long time, and the overflow bricks are supported and fixed at two ends when in use, so that the middle parts of the overflow bricks sink, namely the middle parts of the groove edges form a depression, the overflow amount of the glass liquid from the middle parts of the overflow bricks is increased, the thickness of the middle parts of the formed glass substrates is increased, index defects such as warping, stress and the like are caused on the glass substrates, and the yield is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the overflow amount of molten glass in the middle part of an overflow brick is increased due to high-temperature deformation of the overflow brick in the prior art, and provides the overflow brick for producing a glass substrate and glass production equipment.
In order to achieve the above object, one aspect of the present invention provides an overflow brick for producing a glass substrate, comprising:
the upper brick body is provided with an overflow groove for containing molten glass, the overflow groove is provided with a groove edge suitable for overflowing of the molten glass, and a convex part is formed in the middle of the groove edge; and
the brick body down, the brick body setting is in down go up the below of the brick body, just the brick body forms the brick point along the direction of gravity down.
Preferably, the protrusion is provided in a shape rising from both ends to the middle in the length direction of the overflow tank.
Preferably, the top edge of the projection is arcuate.
Preferably, the top edge of the projection is dog-leg shaped.
Preferably, one end of the overflow groove is provided with a molten glass inlet, the groove edge comprises a front end close to the molten glass inlet and a rear end far away from the molten glass inlet, and the front end is higher than the rear end; the vertical distance between a virtual connecting line of the front end and the rear end and the top edge of the bulge is not more than 20 mm.
Preferably, both ends of the lower brick body in the length direction are provided with supporting grooves, and the supporting grooves are used for supporting on a supporting structure.
Preferably, two side surfaces of the lower brick body extending along the length direction of the overflow chute are close to each other from top to bottom to form the brick tip at the junction.
Preferably, two side surfaces of the lower brick body extending along the length direction of the overflow chute form a V-shaped structure.
In another aspect, the utility model provides glass production equipment, which comprises the overflow brick for producing the glass substrate.
Preferably, the glass production equipment further comprises a support structure, and the support structure is used for supporting the overflow brick for producing the glass substrate.
Through the technical scheme, because the overflow brick is formed with the bulge in the middle part that the overflow launder was followed in glass substrate production, when the overflow brick produced the sunken deformation of middle part in high temperature environment, the bulge can offset the sunken formation of middle part along with the groove along middle part in the background art along with the groove, the bulge can compensate the sunken space in the background art promptly, make the overflow volume of glass liquid still can satisfy the overflow requirement after the overflow brick produces deformation, avoid leading to the overflow volume of glass liquid at overflow brick middle part to increase because sunken, thereby lead to the thickness grow of glass substrate middle part, cause the consequence of defective products, this overflow brick consequently also can promote the yields.
Drawings
FIG. 1 is a schematic structural view of one embodiment of an overflow brick for producing a glass substrate according to the present invention;
FIG. 2 is a front view of the overflow brick for producing the glass substrate of FIG. 1.
Description of the reference numerals
1. Putting a brick body; 11. an overflow trough; 12. a groove edge; 13. virtual connecting lines; 14. a projection; 15. a molten glass inlet; 2. a brick body is arranged; 21. brick tip; 22. and a support groove.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of the directional terms such as "upper" and "lower" generally means the direction of the present invention when it is used, unless otherwise specified.
The utility model provides an overflow brick for producing a glass substrate, which comprises an upper brick body 1 and a lower brick body 2, wherein the upper brick body 1 is provided with an overflow groove 11 for containing molten glass, the overflow groove 11 is provided with a groove edge 12 suitable for overflowing the molten glass, and a convex part 14 is formed in the middle part of the groove edge 12; the lower brick body 2 is arranged below the upper brick body 1, and the lower brick body 2 forms a brick tip 21 along the gravity direction.
Through the technical scheme, because the overflow brick is formed with the bulge in the middle part that the overflow launder was followed in glass substrate production, when the overflow brick produced the sunken deformation of middle part in high temperature environment, the bulge can offset the sunken formation of middle part along with the groove along middle part in the background art along with the groove, the bulge can compensate the sunken space in the background art promptly, make the overflow volume of glass liquid still can satisfy the overflow requirement after the overflow brick produces deformation, avoid leading to the overflow volume of glass liquid at overflow brick middle part to increase because sunken, thereby lead to the thickness grow of glass substrate middle part, cause the consequence of defective products, this overflow brick consequently also can promote the yields.
The present invention is not limited to the specific structure of the overflow vessel 11, and preferably, as shown in the embodiment of fig. 1, one end of the overflow vessel 11 in the length direction is provided with a molten glass inlet 15 for introducing molten glass into the overflow vessel 11. Of course, in other embodiments, the molten glass can also flow directly into the isopipe 11 from the top opening of the isopipe 11, or a conduit can be provided having an outlet end extending into the interior of the isopipe 11 through which the molten glass is injected into the interior of the isopipe 11.
The specific structure of the trough edge 12 is not limited in the present invention, and preferably, as shown in the embodiment shown in fig. 1, the trough edge 12 includes a front end close to the molten glass inlet 15 and a rear end far from the molten glass inlet 15, and the front end is higher than the rear end; when the glass metal is filled into the overflow groove 11 from the glass metal inlet 15, a certain time is required for the glass metal to flow, so that the glass metal can firstly fill the end of the overflow groove 11, which is provided with the glass metal inlet 15, i.e. the glass metal can firstly overflow downwards from the front end of the groove edge 12, and the groove edge 12 is set to be of a structure that the front end is higher than the rear end, so that time is provided for the glass metal to flow towards the other end of the overflow groove 11, which is far away from the glass metal inlet 15, so as to ensure that the glass metal can uniformly overflow from the overflow groove 11, and the glass substrate is relatively uniform. In other embodiments, the groove edges 12 can be set to the same height, and the same function and effect can be achieved by setting the groove bottom of the overflow groove 11 to be in an inclined structure, that is, the groove bottom of the overflow groove 11 is set to be lower at one end close to the molten glass inlet 15 than at the other end far away from the molten glass inlet 15; further, the groove edge 12 and the groove bottom of the overflow groove 11 may be provided with an inclined structure at the same time.
The specific structure of the protrusion 14 is not limited in the present invention, and it is preferable that the protrusion 14 is provided in a shape that is raised from both ends to the middle in the length direction of the overflow tank 11. For example, in the embodiment shown in fig. 2, the top edge of the protrusion 14 is arc-shaped, and the arc-shaped arch structure is smoothly transited from the two ends of the trough edge 12 to the middle region, so as to adapt to the overflow brick, and particularly, the degree of deformation of the trough edge 12 is smoothly transited, that is, the arch of the middle portion, which is most deformed after the deformation is most easily generated, is the highest, and the arch height is gradually reduced towards the two ends, which are less deformed.
Further, the vertical distance between the virtual connecting line 13 between the front end and the rear end of the trough edge 12 and the top edge of the projection 14 does not exceed 20mm, because the sinking amount of the overflow brick and the trough edge 12 is usually not 20mm higher in practical application, so the projection height can be enough to compensate the sinking amount of the existing overflow brick and trough edge 12. Of course, in other embodiments, the protrusion height may be adjusted according to the actual application of the overflow brick and the amount of sinking of the trough edge 12.
In addition, in other embodiments, the top edge of the protrusion 14 may also be arranged in a zigzag shape, such as a triangular structure or a polygonal structure of the protrusion 14.
In the present invention, the brick tip 21 extends along the length direction of the overflow trough 11, and preferably, the lower brick body 2 and the upper brick body 1 are of an integral structure.
The specific structure of the lower brick body 2 is not limited in the utility model, and preferably, the two ends of the lower brick body 2 in the length direction are both provided with support grooves 22, and the support grooves 22 are used for supporting on a support structure so as to install the overflow bricks. Of course, in other embodiments, bosses can be provided at both ends of the lower brick body 2 in the length direction to be set up or embedded on the supporting structure.
In the present invention, as shown in fig. 1, two side surfaces of the lower brick body 2 extending in the length direction of the overflow launder 11 are close to each other from top to bottom to form the brick tip 21 at the junction, and preferably, two side surfaces of the lower brick body 2 extending in the length direction of the overflow launder 11 form a V-shaped structure. Of course, in other embodiments, the two side surfaces may be provided as a vertical section and an inclined section from top to bottom, and the inclined sections of the two side surfaces form the brick tip 21 at the junction, or may be provided as a multi-section structure with different inclinations.
When the overflow brick is used, the overflow brick is deformed in a high-temperature environment, namely the middle position of the overflow brick sinks, the protrusion part 14 can compensate the depression of the trough edge 12 caused by the sinking in the prior art along with the sinking action, then, glass liquid entering through the glass liquid inlet 15 and filling the overflow trough 11 overflows from the trough edge 12, two glass liquid flow surfaces are formed and flow downwards along the two side surfaces of the upper brick body 1 and the lower brick body 2, the two glass liquid flow surfaces are converged at the brick tip 21 and continue to flow downwards, and a piece of glass substrate is formed after subsequent processes of forming, annealing, shearing and the like.
In another aspect, the utility model provides glass production equipment, which comprises the overflow brick for producing the glass substrate.
The glass production apparatus may further include a support structure for supporting the overflow brick for glass substrate production.
The specific structure of the support structure is not limited in the present invention, and preferably, the support structure is support bricks arranged in pairs, and the support bricks are used for being embedded in the corresponding support grooves 22 to support the overflow bricks for glass substrate production.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the utility model, numerous simple modifications can be made to the technical solution of the utility model, including combinations of the specific features in any suitable way, and the utility model will not be further described in relation to the various possible combinations in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. The overflow brick for producing the glass substrate is characterized by comprising:
the upper brick body (1), the upper brick body (1) is provided with an overflow groove (11) for containing molten glass, the overflow groove (11) is provided with a groove edge (12) suitable for overflowing the molten glass, and a convex part (14) is formed in the middle part of the groove edge (12); and
the brick body (2) down, the brick body (2) setting is in down go up the below of the brick body (1), just the brick body (2) down forms brick point (21) along the direction of gravity.
2. The overflow brick for glass substrate production according to claim 1, wherein the protrusion (14) is provided in a shape rising from both ends to the middle in the length direction of the overflow groove (11).
3. The overflow brick for glass substrate production according to claim 2, wherein the top edge of the protrusion (14) is arc-shaped.
4. The overflow brick for glass substrate production according to claim 2, wherein the top edge of the protrusion (14) is in a zigzag shape.
5. The overflow brick for producing glass substrates according to any one of claims 1 to 4, wherein one end of the overflow groove (11) is provided with a molten glass inlet (15), and the groove edge (12) comprises a front end close to the molten glass inlet (15) and a rear end far from the molten glass inlet (15), the front end being higher than the rear end;
the vertical distance between the virtual line (13) of the front end and the rear end and the top edge of the bulge (14) is not more than 20 mm.
6. The overflow brick for producing glass substrates according to claim 1, wherein the lower brick body (2) is provided with support grooves (22) at both ends in the length direction, and the support grooves (22) are used for bearing on a support structure.
7. The overflow brick for glass substrate production according to claim 1, wherein the two side surfaces of the lower brick body (2) extending in the length direction of the overflow chute (11) are close to each other from top to bottom to form the brick tip (21) at the intersection.
8. The overflow brick for glass substrate production according to claim 7, wherein both side surfaces of the lower brick body (2) extending in the length direction of the overflow chute (11) form a V-shaped structure.
9. A glass production apparatus comprising the overflow brick for producing a glass substrate according to any one of claims 1 to 8.
10. The glass production apparatus of claim 9, further comprising a support structure for supporting the overflow brick for glass substrate production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122603458.4U CN216236655U (en) | 2021-10-27 | 2021-10-27 | Overflow brick for glass substrate production and glass production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122603458.4U CN216236655U (en) | 2021-10-27 | 2021-10-27 | Overflow brick for glass substrate production and glass production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216236655U true CN216236655U (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122603458.4U Active CN216236655U (en) | 2021-10-27 | 2021-10-27 | Overflow brick for glass substrate production and glass production equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216236655U (en) |
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2021
- 2021-10-27 CN CN202122603458.4U patent/CN216236655U/en active Active
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