CN215365458U

CN215365458U - Overflow brick and overflow forming device for glass substrate production

Info

Publication number: CN215365458U
Application number: CN202121203429.2U
Authority: CN
Inventors: 宋义峰
Original assignee: Dongxu Optoelectronic Technology Co Ltd; Tunghsu Technology Group Co Ltd; Henan Xuyang Photoelectric Technology Co Ltd
Current assignee: Dongxu Optoelectronic Technology Co Ltd; Tunghsu Technology Group Co Ltd; Henan Xuyang Photoelectric Technology Co Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-31
Anticipated expiration: 2031-05-28

Abstract

The present disclosure relates to an overflow brick for glass substrate production and an overflow forming device, wherein the overflow brick for glass substrate production comprises an upper brick body which is provided with a holding tank for holding molten glass, and a lower brick body which is arranged at the lower end of the upper brick body and is provided with a downward brick tip, and the edge corresponding to the brick tip is constructed to be arched upwards from the middle part. The brick tip of the lower brick body is constructed into an arched structure, so that the sinking amount of the middle part of the overflow brick caused by the production of the glass substrate in a high-temperature environment for a long time can be compensated, and the phenomenon that the middle part sinks and is lower than the two end parts to cause the overflow brick to be lengthened is avoided, so that the thickness of the glass substrate is uneven, and the quality of the glass substrate is influenced. Meanwhile, the fracture caused by overlarge deformation of the overflow brick can be avoided, the service life of the overflow brick is ensured, and the production progress of the glass substrate is prevented from being influenced.

Description

Overflow brick and overflow forming device for glass substrate production

Technical Field

The disclosure relates to the field of glass substrate production and manufacturing, in particular to an overflow brick and an overflow forming device for glass substrate production.

Background

Currently, an overflow downdraw method is generally used to produce glass substrates. The overflow downdraw method is characterized in that molten glass liquid is filled into a groove of an overflow brick in a muffle furnace, then the molten glass slowly overflows along the brick edge from two sides of the groove to form glass flows on two sides of the overflow brick, when the molten glass flows to the brick tip of the overflow brick, the glass flows on two sides flow back to form a piece of glass, and then the glass flows are pulled into a glass substrate by a lower traction roller. In order to ensure the flow of the molten glass in the overflow bricks, it is necessary to maintain a high temperature of 1300 ℃ in the muffle furnace, and the overflow bricks are deformed by the production of glass substrates for a long time. Because the both ends of overflow brick are passed through strutting arrangement and are supported, consequently at the in-process of overflow brick deformation, the mid portion of overflow brick can slowly sink, and the deformation of overflow brick has changed the size precision of overflow brick to influence the distribution that flows of fused glass liquid in the overflow brick, cause the glass substrate thickness of producing inhomogeneous, the serious deformation of overflow brick in addition also can lead to overflow brick fracture, thereby influences the production progress.

SUMMERY OF THE UTILITY MODEL

A first object of the present disclosure is to provide a flooding brick for glass substrate production to at least partially solve the problems existing in the related art.

The second purpose of this disclosure is to provide an overflow forming device for producing glass substrates, this overflow forming device for producing glass substrates has the overflow brick for producing glass substrates that this disclosure provides.

In order to achieve the above object, the present disclosure provides an overflow brick for glass substrate production, including an upper brick body formed with a receiving groove for receiving molten glass, and a lower brick body provided at a lower end of the upper brick body and formed with a downward brick tip, an edge corresponding to the brick tip being configured to be upwardly arched from a middle portion.

Optionally, both end faces of the lower brick body in the extending direction of the brick tip are configured to be inclined from top to bottom toward directions approaching each other.

Optionally, the edge corresponding to the brick tip is configured to be arc-shaped, and the arch height of the middle part of the arc-shaped relative to the two end parts is not more than 20 cm.

Optionally, one end of the upper brick body is provided with a molten glass filling port, and the upper edge of the upper brick body is configured to be gradually inclined downwards from the end provided with the filling port to the end far away from the filling port.

Optionally, the bottom of the receiving groove is configured to be horizontally disposed, or the bottom of the receiving groove is configured to be gradually inclined upward from an end provided with the charging port to an end far away from the charging port.

Optionally, step surfaces are formed at two ends of the overflow brick and are used for being erected on the supporting brick.

The second purpose of the present disclosure is to provide an overflow forming device for producing a glass substrate, which comprises an overflow brick, wherein the overflow brick is the overflow brick for producing the glass substrate.

Optionally, the forming device further comprises temperature adjusting devices arranged at two ends of the brick tip and used for adjusting the thickness of the molten glass overflowing from the two ends of the brick tip.

Optionally, the overflow brick further comprises two holding devices for holding the shape of the lower brick body, which are in contact with and disposed at both end faces of the lower brick body in the extending direction of the brick toe.

Optionally, the surface of the retaining device in contact with the end face of the lower brick body is matched in shape to the end face of the lower brick body.

Through above-mentioned technical scheme, this glass substrate production is with overflow brick that this disclosure provided constructs for domes through the brick point with lower brick body, can compensate the overflow brick and produce the glass substrate and the mid portion's that leads to sinking amount at high temperature environment for a long time, avoids the mid portion to sink and be less than both ends portion and lead to the overflow brick to lengthen to the glass substrate thickness that leads to is uneven, influences the glass substrate quality. Meanwhile, the fracture caused by overlarge deformation of the overflow brick can be avoided, the service life of the overflow brick is ensured, and the production progress of the glass substrate is prevented from being influenced.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic structural view of a deformed prior art overflow brick;

FIG. 2 is a schematic structural diagram of a flooding brick for producing a glass substrate according to an exemplary embodiment of the present disclosure;

FIG. 3 is a side view of a flood block for producing glass substrates provided by an exemplary embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of an overflow forming device for producing a glass substrate according to an exemplary embodiment of the present disclosure.

Description of the reference numerals

1. 1' overflow brick 11 upper brick body

111 holding tank 112 filling port

12 lower brick bodies 121, 121' brick tips

13 step surface 2 holding device

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, when not described to the contrary, the terms of orientation such as "upper", "lower", "top", "bottom", "left" and "right" used in the present disclosure are defined according to the normal use of the overflow brick for producing a glass substrate provided by the present disclosure, and specifically, refer to the plane direction shown in fig. 2. "inner" and "outer" refer to the inner and outer of the respective component profiles. Further, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements.

Referring to fig. 1, after the overflow brick 1 ' in the prior art is used in a high-temperature environment for a long time, the middle part of the brick tip 121 ' sinks, which causes uneven thickness and poor quality of the produced glass substrate, and when the left and right lengths of the overflow brick 1 ' are long, the overflow brick is easy to break. Therefore, referring to fig. 2 and 3, in order to solve the foregoing problems, the present disclosure provides an overflow brick for glass substrate production, the overflow brick 1 including an upper brick body 11 formed with a receiving groove 111 for receiving molten glass, and a lower brick body 12 provided at a lower end of the upper brick body 11 and formed with a downward facing brick tip 121, an edge corresponding to the brick tip 121 being configured to be upwardly arched from a middle portion. In the glass substrate production process, the glass liquid filled in the holding tank 111 overflows from two tank walls of the holding tank 111 after filling the holding tank 111 to form two-sided glass flows and flows downwards along two side surfaces of the upper brick body 11 and the lower brick body 12, namely flows downwards along the left side surface and the right side surface of fig. 3, and as the brick tip 121 is formed at the lower end of the lower brick body 12, the two-sided glass flows are converged at the brick tip 121 to form a glass substrate, and the glass substrate is formed by pulling through the pulling roller arranged below.

Through the technical scheme, the overflow brick for producing the glass substrate provided by the disclosure can compensate the sinking amount of the middle part caused by the fact that the overflow brick 1 produces the glass substrate in a high-temperature environment for a long time by constructing the brick tip 121 of the lower brick body 12 into an arch structure, and avoids the phenomenon that the middle part sinks to be lower than the two end parts to cause the overflow brick to be lengthened, so that the thickness of the glass substrate is uneven, and the quality of the glass substrate is influenced. Meanwhile, the fracture caused by overlarge deformation of the overflow brick 1 can be avoided, the service life of the overflow brick 1 is ensured, and the production progress of the glass substrate is prevented from being influenced.

Further, referring to fig. 2 and 4, both end faces of the lower brick body 12 in the extending direction of the brick tip 121 are configured to be inclined from top to bottom toward the direction of mutual approach, i.e., both end faces of the lower brick body 12 in the left-right direction of the drawing plane are tapered from top to bottom. Make the two-sided glass that flows through holding tank 111 flow when the brick body 12 under the flow, brick body 12 both ends face the orientation slope that is close to each other down for brick body 12 middle part has sufficient intensity down, prevents that the domes of brick point 121 structure from taking place deformation, has reduced the sunken speed of taking place in brick body 12 middle part down, has improved overflow brick 1's life, has slowed down the speed that overflow brick 1 becomes long, with the production progress of guaranteeing the glass substrate.

The arched configuration of the brick toe 121 in the disclosed embodiment may be any suitable configuration, such as a triangular or other straight arched edge that may be arched. Referring to fig. 2, the edge corresponding to the brick toe 121 may also be configured to be arc-shaped, and the arc-shaped arched structure is smoothly transited from the two ends of the overflow brick 1 to the middle area, so as to adapt to the changeability of the overflow brick 1, that is, the arch is highest in the middle portion which is most easily deformed, and the height of the arch gradually decreases towards the two ends which are lower in changeability. Here, the arching height of the arc-shaped middle part relative to the two end parts can be set to be not more than 20cm according to practical application, and the arching height can sufficiently compensate the sinking amount of the existing overflow brick 1 because the sinking amount of the overflow brick 1 is not over 20cm in practical application, and it can be understood that the arching height can be adjusted according to the sinking amount easily generated by the overflow brick 1 in practical application, and the disclosure is not limited thereto. In addition, the arc-shaped structure is convenient for the forming and production of the overflow brick 1, and the feasibility of forming the overflow brick 1 is ensured.

Referring to fig. 2, one end of the upper brick body 11 is provided with a molten glass charging port 112, and the upper edge of the upper brick body 11 is configured to be gradually inclined downward from the end provided with the charging port 112 to the end away from the charging port 112. According to some embodiments, the filling port 112 may be disposed at the left side of the upper brick body 11 where the height is higher, and when the glass liquid is filled into the accommodating groove 111 from the filling port 112, since the upper brick body 11 has a certain extending length, when the glass liquid is filled into the right end of the accommodating groove 111 from the left end of the accommodating groove 111, it takes a certain time for the glass liquid to flow, so that the glass liquid may first fill the left end of the accommodating groove 111 and overflow downwards, and thus the one side of the filling port 112 of the accommodating groove 111 is disposed higher, providing time for the glass liquid to flow to the other side of the filling port 112, so as to ensure that the glass liquid can overflow from the upper brick body 11 uniformly, and thus the glass substrate is more uniform.

Further, the groove bottom of the receiving groove 111 may be configured to be horizontally disposed, or the groove bottom of the receiving groove 111 may be configured to be gradually inclined upward from the end where the charge port 112 is disposed to the end distant from the charge port 112. In this way, the glass flow contained in the containing tank 111 is allowed to overflow from the bottom of the containing tank 111 at the same level or at the same time to further ensure the uniformity of the thickness of the glass substrate produced subsequently. Alternatively, in other embodiments, the bottom of the accommodating groove 111 may be gradually inclined upward from the end where the charging port 112 is disposed to the end away from the charging port 112 (i.e., from the left end to the right end of the drawing of fig. 2) according to the flowing speed of the molten glass and the charging speed of the charging port, so as to more accurately ensure that the molten glass can overflow the brick 1 at the same outflow time over the entire length thereof, and the inclination angle of the bottom may be determined according to the flow rate of the molten glass and other factors.

Referring to fig. 2, both ends of the overflow brick 1 may be formed with stepped surfaces 13 for being set up on the support bricks. Step face 13 through overflow brick 1 body formation sets up overflow brick 1 on supporting the brick, has improved the stability that supporting brick 2 supported overflow brick 1, has guaranteed that glass liquid flows ground homogeneity on overflow brick 1 when producing the glass substrate for the glass substrate thickness of producing is comparatively even. When the stepped surface 13 is provided and the supporting bricks are used for supporting the two ends of the overflow brick 1, the situation that the middle of the overflow brick 1 sinks greatly due to the support of the two ends is relieved by arranging the brick tips 121 with the arch structure and the two inclined ends provided by the embodiment of the disclosure.

According to some embodiments provided by the present disclosure, the overflow brick 1 may be made of a high temperature resistant material. Specifically, the overflow brick 1 can be made of special ceramics, so that the overflow brick 1 has enough strength and rigidity, the service life of the overflow brick 1 for producing the glass substrate in a high-temperature environment can be effectively prolonged, and the production progress of the glass substrate can be ensured.

In a second aspect of the present disclosure, an overflow forming device for producing a glass substrate is provided, the forming device includes an overflow brick 1, and the overflow brick 1 is the above overflow brick for producing a glass substrate. The overflow forming device for producing the glass substrate has all the advantages of the overflow brick 1 provided by the disclosure, and the description is omitted here.

Further, the overflow forming device for glass substrate production may further include temperature adjusting means provided at both ends of the brick tip 121 for adjusting the thickness of the molten glass overflowing at both ends of the brick tip 121. In the production process of glass substrate, the both ends of brick point 121 bulge in the middle part of brick point 121 downwards, and this probably can make the glass substrate thickness that brick point 121 both ends stretched out be thicker than middle part thickness, through set up temperature regulation apparatus at overflow brick 1 both ends, has guaranteed that the glass substrate thickness that overflow brick 1 produced is even. It will be appreciated that in normal use, the thickness of the glass substrate in the central region is generally greater due to the surface tension of the liquid, and thus, in some cases, the thickness of the glass substrate will remain uniform even though the two ends may project downwardly beyond the central portion.

Referring to fig. 4, the overflow brick 1 further includes two holding means 2 for holding the shape of the lower brick body 12, which are provided in contact with both end faces of the lower brick body 12 in the extending direction of the brick tip 121. When the glass substrate is produced, the two holding devices 2 respectively abut against two end surfaces in the extending direction of the brick tip 121, and the holding devices 2 can further ensure that the position of the arch structure can be maintained, so that the arch structure is prevented from deforming and sinking to cause downward elongation of the overflow brick 1 and influence the thickness of the glass substrate.

Further, referring to fig. 4, the surface of the holding device 2 contacting the end surface of the lower brick body 12 matches the shape of the end surface of the lower brick body 12, i.e. when the two ends of the overflow brick 1 are inclined toward each other from top to bottom as described above, the end surface of the holding device 2 is also inclined toward the direction to ensure that the two are abutted. The shape of the contact surface of the holding device 2 and the overflow brick 1 is matched, so that on one hand, the contact effect of the holding device 2 and the lower brick body 12 can be improved, the holding device 2 has a larger effective area when contacting the lower brick body 12, and the shape holding effect of the holding device 2 on the lower brick body 12 is ensured; on the other hand, when the holding device 2 contacts the lower brick body 12, the holding device 2 is prevented from deforming the surface of the lower brick body 12 contacting with the holding device 2, and the reliability of the holding device 2 in use is ensured.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. The overflow brick for producing the glass substrate is characterized in that the overflow brick (1) comprises an upper brick body (11) and a lower brick body (12), wherein a containing groove (111) for containing molten glass is formed in the upper brick body, the lower brick body (12) is arranged at the lower end of the upper brick body (11) and is provided with a downward brick tip (121), and the edge corresponding to the brick tip (121) is arched upwards from the middle part.

2. The overflow brick for glass substrate production according to claim 1, wherein both end faces of the lower brick body (12) in the extending direction of the brick tip (121) are configured to be inclined from top to bottom in the direction of approaching each other.

3. The overflow brick for producing glass substrates according to claim 1, wherein the corresponding edge of the brick tip (121) is configured in an arc shape, and the arch height of the middle part of the arc shape relative to the two end parts is not more than 20 cm.

4. The overflow brick for glass substrate production according to claim 1, wherein one end of the upper brick body (11) is provided with a molten glass charging port (112), and an upper edge of the upper brick body (11) is configured to be gradually inclined downward from the end provided with the charging port (112) to the end away from the charging port (112).

5. The overflow brick for glass substrate production according to claim 4, wherein the bottom of the receiving groove (111) is configured to be horizontally disposed, or the bottom of the receiving groove (111) is configured to be gradually inclined upward from an end where the charging port (112) is disposed to an end away from the charging port (112).

6. The overflow brick for producing glass substrates according to claim 1, wherein step surfaces (13) are formed at both ends of the overflow brick (1) for being placed on the supporting brick.

7. An overflow forming device for producing glass substrates, comprising an overflow brick (1), wherein the overflow brick (1) is the overflow brick for producing glass substrates according to any one of claims 1 to 6.

8. The overflow forming device for producing glass substrates according to claim 7, wherein the forming device further comprises temperature adjusting means provided at both ends of the brick tip (121) for adjusting the thickness of the molten glass overflowing at both ends of the brick tip (121).

9. The overflow forming device for glass substrate production according to claim 7, wherein the overflow brick (1) further comprises two holding devices (2) for holding the shape of the lower brick body (12) in contact provided at both end faces of the lower brick body (12) in the extending direction of the brick tip (121).

10. The overflow forming device for glass substrate production according to claim 9, wherein a surface of the holding device (2) that contacts the end face of the lower brick body (12) matches the shape of the end face of the lower brick body (12).