Gate and shaping furnace

Abstract

The utility model relates to a gate and a shaping furnace. The gate comprises a driving structure and a gate structure. The gate structure is connected with the driving structure and comprises a gate supporting plate and heat preservation plates, the gate supporting plate is integrated, the heat preservation plates are arranged on the gate supporting plate and comprise the first heat preservation plate and the second heat preservation plate, the first heat preservation plate and the second heat preservation plate are correspondingly arranged, and the opposite faces of the first heat preservation plate and the second heat preservation plate are first splicing faces. The face, opposite to the first heat preservation plate, of the second heat preservation plate is a second splicing face, the first splicing face is provided with a first protrusion which is close to the driving structure, the second splicing face is provided with a second protrusion which is far away from the driving structure, and the first protrusion is matched with the second protrusion. According to the technical scheme, the problem that in the prior art, air flow easily penetrates through a gap in a gate to generate adverse effects on the glass quality is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of glass production, and in particular to a gate and a shaping furnace. Background Art

[0002] When the glass production line is in operation, when adjusting the glass quality, the gate of the shaping furnace needs to be pushed inward to increase the temperature difference between the upper and lower furnace chambers, so as to better adjust the glass quality. The shaping furnace gate is mostly made of multiple sets of gate support plates, and the gate support plates and the insulation plates placed on them are buckled.

[0003] The existing shaping furnace gate (for example: the authorization announcement number is CN218202517U, and the name is: gate structure and insulation pipe), the gate includes an insulation board, a protective plate and metal paper, the protective plate is wrapped with the insulation board, and the metal paper is arranged between the protective plate and the insulation board. The airflow easily passes through the gap of the wrapping and acts on the glass ribbon, which has an adverse effect on the quality of the glass ribbon. Utility Model Content

[0004] The present application provides a gate to solve the problem in the prior art that airflow easily passes through the gap on the gate and has a negative impact on the quality of glass.

[0005] A gate provided according to the present application includes: a driving structure and a gate structure. The gate structure is connected to the driving structure, and the gate structure includes a gate support plate and an insulation plate, the gate support plate is an integrated type, the insulation plate is arranged on the gate support plate, the insulation plate includes a first insulation plate and a second insulation plate, the first insulation plate and the second insulation plate are arranged correspondingly, the surface of the first insulation plate opposite to the second insulation plate is a first splicing surface, the surface of the second insulation plate opposite to the first insulation plate is a second splicing surface, the first splicing surface has a first protrusion, the first protrusion is close to the driving structure, the second splicing surface has a second protrusion, the second protrusion is far away from the driving structure, and the first protrusion matches the second protrusion.

[0006] In some embodiments, the gate structure has multiple matching gate structures, the gate has a semi-closed state where the gate structures are close to each other, or an open state where the gate structures are far away from each other, and the distance between the gate structure and the glass ribbon is between 30 mm and 120 mm.

[0007] In some embodiments, the gate support plate has a groove with a depth of 8 mm to 12 mm, the groove opening faces upward, and the insulation board is at least partially located in the groove.

[0008] In some embodiments, a high temperature adhesive layer is provided between the insulation board and the gate support plate.

[0009] In some embodiments, the driving structure includes a pull rod, which is connected to the gate supporting plate, and a plurality of pull rods are evenly arranged along the length direction of the gate supporting plate.

[0010] In some embodiments, the gate support plate is made of SIC material, and the insulation board is made of high-temperature resistant ceramic fiberboard.

[0011] The present application also provides a shaping furnace, which includes a gate.

[0012] In some embodiments, the shaping furnace further comprises a furnace cavity, wherein the furnace cavity has a plurality of furnace cavities, the plurality of furnace cavities are arranged along the flow direction of the glass ribbon, and gates are arranged between the furnace cavities.

[0013] In some embodiments, a support platform is installed on the inner wall of the furnace chamber, and the gate structure is movably placed on the support platform.

[0014] In some embodiments, the pull rod passes through the inner wall of the furnace cavity, and the shaping furnace also includes a supporting portion, the supporting portion has a through hole, the pull rod passes through the through hole, and nuts are installed on the pull rod at both ends of the through hole.

[0015] By applying the technical solution of the present application, the movement of the gate structure can be achieved through the driving structure. The gate structure includes a gate support plate and an insulation plate. The gate support plate is an integrated type to avoid splicing seams between the gate support plates, which causes unstable local airflow and uneven temperature in the furnace cavity. The insulation plate is arranged on the gate support plate to better maintain the temperature in the furnace cavity. The insulation plate includes a first insulation plate and a second insulation plate. The surface opposite to the first insulation plate and the second insulation plate is a first splicing surface, and the surface opposite to the second insulation plate and the first insulation plate is a second splicing surface. The first splicing surface has a first protrusion, and the first protrusion is close to the driving structure. The second splicing surface has a second protrusion, and the second protrusion is far away from the driving structure. The first protrusion cooperates with the second protrusion so that the first insulation plate and the second insulation plate are spliced ​​together. At the same time, the first protrusion and the second protrusion are arranged in this way so that the splicing seam between the first protrusion and the second protrusion is perpendicular to the driving structure. When the airflow flows in the furnace cavity, it is not easy to pass through the splicing seam to act on the glass ribbon, which greatly reduces the impact on the glass ribbon. The technical solution of the present application effectively solves the problem in the prior art that airflow easily passes through the gap on the gate and has a negative impact on the quality of the glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1A schematic diagram of the structure of the gate according to an embodiment of the present application is shown;

[0019] Figure 2 Another schematic structural diagram of the gate according to an embodiment of the present application is shown;

[0020] Figure 3 A schematic diagram showing the cooperation between the gate and the support part of an embodiment of the present application is shown;

[0021] Figure 4 A schematic diagram showing the coordination of the gate, furnace cavity and support platform of an embodiment of the present application is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10. Gate; 11. Driving structure; 111. Pull rod; 12. Gate structure; 121. Gate support plate; 122. Insulation board; 1221. First insulation board; 12211. First protrusion; 1222. Second insulation board; 12221. Second protrusion; 20. Furnace cavity; 30. Support platform; 40. Support part; 100. Glass belt. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0026] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0027] like Figure 1 and Figure 2As shown, some embodiments relate to a gate 10 , comprising: a driving structure 11 and a gate structure 12 . The gate structure 12 is connected to the driving structure 11, and the gate structure 12 includes a gate support plate 121 and an insulation plate 122. The gate support plate 121 is integrated, and the insulation plate 122 is arranged on the gate support plate 121. The insulation plate 122 includes a first insulation plate 1221 and a second insulation plate 1222. The first insulation plate 1221 and the second insulation plate 1222 are arranged correspondingly, and the surface opposite to the first insulation plate 1221 and the second insulation plate 1222 is a first splicing surface, and the surface opposite to the second insulation plate 1222 and the first insulation plate 1221 is a second splicing surface. The first splicing surface has a first protrusion 12211, and the first protrusion 12211 is close to the driving structure 11. The second splicing surface has a second protrusion 12221, and the second protrusion 12221 is far away from the driving structure 11. The first protrusion 12211 and the second protrusion 12221 cooperate with each other.

[0028] By applying the technical solution of this embodiment, the gate structure 12 can be moved by the driving structure 11. The gate structure 12 includes a gate support plate 121 and an insulation plate 122. The gate support plate 121 is integrated to avoid splicing seams between the gate support plates 121, which may cause unstable local airflow and uneven temperature in the furnace cavity 20. The insulation plate 122 is arranged on the gate support plate 121 to better maintain the temperature in the furnace cavity 20. The insulation plate 122 includes a first insulation plate 1221 and a second insulation plate 1222. The surface opposite to the first insulation plate 1221 and the second insulation plate 1222 is a first splicing surface, and the surface opposite to the second insulation plate 1222 and the first insulation plate 1221 is a second splicing surface. The first joint surface has a first protrusion 12211, which is close to the driving structure 11, and the second joint surface has a second protrusion 12221, which is far away from the driving structure 11. The first protrusion 12211 cooperates with the second protrusion 12221, so that the first insulation board 1221 and the second insulation board 1222 are spliced ​​together. At the same time, the first protrusion 12211 and the second protrusion 12221 are arranged in such a way that the joint between the first protrusion 12211 and the second protrusion 12221 is perpendicular to the driving structure 11, and the airflow is not easy to pass through the joint when flowing in the furnace chamber 20 to act on the glass ribbon 100, which greatly reduces the impact on the glass ribbon 100. The technical solution of this embodiment effectively solves the problem in the prior art that the airflow is easy to pass through the gap on the gate 10 and have an adverse effect on the glass quality.

[0029] It should be noted that the first insulation board 1221 and the second insulation board 1222 are placed on the gate support plate 121 by splicing. The first splicing surface is formed into a concave shape on the top and convex shape on the bottom due to the first protrusion 12211, and the second splicing surface is formed into a convex shape on the top and concave shape on the bottom due to the second protrusion 12221. The first insulation board 1221 and the second insulation board 1222 are arranged correspondingly, that is, the first splicing surface is opposite to the second splicing surface, and the concave shape on the top and convex shape on the bottom are matched with the convex shape on the top and concave shape on the bottom, so that the first insulation board 1221 and the second insulation board 1222 are tightly spliced. At the same time, this arrangement makes the splicing seam parallel to the flow direction of the glass ribbon 100, and the airflow is not easy to pass through the splicing seam and act on the glass ribbon 100.

[0030] It should also be noted that in order to reduce the impact on the glass ribbon 100 , the fewer the joints, the better. Also, due to the size limitation of the gate support plate 121 , the number of the insulation plates 122 is set to two.

[0031] like Figure 3 and Figure 4 As shown, in some embodiments, the gate structure 12 has a plurality of matched gate structures 12, and the gate 10 has a semi-closed state in which the gate structures 12 are close to each other, or an open state in which the gate structures 12 are far from each other, and the distance between the gate structure 12 and the glass ribbon 100 is between 30 mm and 120 mm. In the semi-closed state, the gas flow can be reduced to increase the temperature difference between the furnace chambers, and in the open state, the gas flow can be enhanced to reduce the temperature difference between the furnace chambers. The distance between the gate structures 12 can also be adjusted accordingly according to different temperature difference requirements.

[0032] It should be noted that the glass ribbon 100 is always in a stable flow. In order to well control the temperature difference between the furnace chambers and not affect the flow of the glass ribbon 100, the distance between the gate structure 12 and the glass ribbon 100 is between 30 mm and 120 mm.

[0033] like Figures 2 to 3 As shown, the gate support plate 121 has a groove with a depth of 8 mm to 12 mm, the groove opening faces upward, and the insulation board 122 is at least partially located in the groove. The groove can provide good support for the insulation board 122, and the insulation board 122 is located in the same plane as the gate support plate 121 in the vertical direction.

[0034] In some embodiments, there is a high temperature adhesive layer between the insulation board 122 and the gate support board 121. The high temperature adhesive layer can bond the insulation board 122 and the gate support board 121 together, avoiding the problem that the insulation board 122 and the gate support board 121 are easily broken in a high temperature environment by using buckles in the prior art.

[0035] like Figures 1 to 4As shown, in some embodiments, the driving structure 11 includes a pull rod 111, and the pull rod 111 is connected to the gate support plate 121. The pull rod 111 is evenly arranged along the length direction of the gate support plate 121. The pull rod 111 is connected to the gate support plate 121, and the gate support plate 121 is moved by pulling the pull rod 111 to adjust the distance between the gate structure 12 and the glass ribbon 100. The pull rod 111 may be wrapped with a heat insulation sleeve, and the gate structure 12 may be moved by the operator manually pulling the pull rod 111.

[0036] In some embodiments, the gate support plate 121 is made of SIC material, and the insulation plate 122 is made of high temperature resistant ceramic fiberboard. The SIC material, i.e., silicon carbide, has stable chemical properties and a small thermal expansion coefficient, and is not easily affected by high temperature to cause collision and extrusion, resulting in gaps in a high temperature environment. The high temperature resistant ceramic fiberboard has excellent fire resistance and chemical stability in a high temperature environment, and can effectively isolate high temperature media, so that there can be a good temperature difference between the furnace chambers.

[0037] like Figure 4 As shown, in some embodiments, the shaping furnace includes a gate 10, and the temperature difference is regulated by moving the gate 10.

[0038] like Figure 4 As shown, in some embodiments, the shaping furnace further includes a furnace cavity 20, and the furnace cavity 20 has a plurality of furnace cavities 20, and the plurality of furnace cavities 20 are placed along the flow direction of the glass ribbon 100, and the gate 10 is arranged between the furnace cavities 20. A heating structure is placed in each furnace cavity 20 to adjust the temperature in the furnace cavity 20, thereby adjusting the quality of the glass ribbon 100. A gate 10 is arranged between each furnace cavity 20, and the temperature difference between each furnace cavity 20 is controlled by moving the gate 10.

[0039] like Figure 4 As shown, in some embodiments, a support platform 30 is installed on the inner wall of the furnace cavity 20, and the gate structure 12 is movably placed on the support platform 30. The support platforms 30 can be two oppositely arranged, and the corresponding two gate structures 12 are respectively placed on the support platforms 30, and the gate structures 12 can move on the support platforms 30 to adjust the temperature difference between the furnace cavities 20.

[0040] like Figure 3 and Figure 4As shown, in some embodiments, the tie rod 111 passes through the inner wall of the furnace cavity 20, and the shaping furnace further includes a support portion 40, the support portion 40 has a through hole, the tie rod 111 passes through the through hole, and nuts are installed at the positions at both ends of the through hole on the tie rod 111. The tie rod 111 passes through the inner wall of the furnace cavity 20 and is placed on the support platform 30. The end of the tie rod 111 away from the furnace cavity 20 passes through the through hole of the support portion 40, and the support portion 40 can play a role in positioning and supporting the tie rod 111. Nuts are installed at the positions at both ends of the through hole on the tie rod 111, the tie rod 111 has an external thread, and the nut has an internal thread that matches the external thread. The diameter of the nut is greater than the diameter of the through hole. When it is necessary to increase the temperature difference between the furnace cavities 20, the nut away from the furnace cavity 20 is loosened to separate it from the support portion 40. At this time, the tie rod 111 can move in the direction close to the furnace cavity 20. After moving to a suitable position, the nuts at both ends are tightened, and the tie rod 111 is fixed by the abutment between the nut and the support portion 40. When the temperature difference between the furnace chambers 20 needs to be reduced, the nut close to the furnace chamber 20 is loosened to separate it from the support portion 40. At this time, the pull rod 111 can be moved away from the furnace chamber 20. After moving to a suitable position, the nuts at both ends are tightened to fix the pull rod 111 through the abutment between the nut and the support portion 40.

[0041] From the above, it can be known that the gate 10 includes a joint seam, a gate support plate 121, an insulation board 122 and a pull rod 111. During assembly, the gate support plate 121 is first connected to the pull rod 111, and then the insulation board 122 is placed above the gate support plate 121. The gate support plate 121 and the insulation board 122 are aligned on the glass side, and are on the same facade in the vertical direction. The gate support plate 121 and the insulation board 122 are bonded with a high-temperature adhesive, and the joint seams between the insulation boards 122 are also filled and bonded with a high-temperature adhesive to prevent high-temperature expansion from causing gaps in the joint seams of the insulation boards, resulting in uneven surface temperature of the glass strip 100, inconsistent thickness of the glass strip 100, and affecting the quality of the glass. When adjusting the quality of the glass strip 100, the gate structure 12 needs to be pushed to one side of the glass strip 100 with the help of the pull rod 111 to separate the upper and lower intervals and achieve the purpose of temperature gradient. When the glass ribbon 100 is undergoing process adjustment, uniform temperature must be ensured in the horizontal direction, so the gate support plate 121 facing the side of the glass ribbon 100 must be aligned with the insulation board 122 and be on the same facade in the vertical direction; compared with the previous gate 10, this gate 10 reduces the risk of the insulation board 122 breaking and falling off, and greatly reduces the appearance of gaps on the facade of the gate structure 12 facing the glass ribbon 100, resulting in inconsistent distances to the glass ribbon 100, thereby causing inconsistent temperatures in the horizontal direction of the glass ribbon 100, resulting in inconsistent thickness of the glass ribbon 100. This gate 10 can reduce the problem of substandard quality of the glass ribbon 100 caused by uneven local airflow and temperature caused by the joints of the gate 10. It can solve the problem that the insulation board 122 and the gate support plate 121 are easily broken and fall off at the buckle, resulting in inconsistent thickness of the glass ribbon 100, and finally the glass ribbon 100 produces light and dark lines.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0044] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gate, characterized in that: include: Driving structure (11); A gate structure (12), the gate structure (12) being connected to the driving structure (11), the gate structure (12) comprising a gate support plate (121) and a heat preservation plate (122), the gate support plate (121) being an integrated type, the heat preservation plate (122) being arranged on the gate support plate (121), the heat preservation plate (122) comprising a first heat preservation plate (1221) and a second heat preservation plate (1222), the first heat preservation plate (1221) and the second heat preservation plate (1222) being arranged correspondingly, the first heat preservation plate (1221) The surface opposite to the second thermal insulation plate (1222) is a first splicing surface, and the surface of the second thermal insulation plate (1222) opposite to the first thermal insulation plate (1221) is a second splicing surface. The first splicing surface has a first protrusion (12211), and the first protrusion (12211) is close to the driving structure (11). The second splicing surface has a second protrusion (12221), and the second protrusion (12221) is far away from the driving structure (11). The first protrusion (12211) cooperates with the second protrusion (12221).

2. The gate according to claim 1, characterized in that: The gate structure (12) has a plurality of matched gate structures, and the gate (10) has a semi-closed state in which the plurality of gate structures (12) are close to each other, or an open state in which the plurality of gate structures (12) are away from each other, and the distance between the gate structure (12) and the glass ribbon (100) is between 30 mm and 120 mm.

3. The gate according to claim 1, characterized in that: The gate support plate (121) has a groove, the depth of the groove is 8 mm to 12 mm, the opening of the groove faces upward, and the insulation plate (122) is at least partially located in the groove.

4. The gate according to claim 3, characterized in that: A high-temperature adhesive layer is provided between the thermal insulation plate (122) and the gate support plate (121).

5. The gate according to claim 4, characterized in that: The driving structure (11) comprises a pull rod (111), wherein the pull rod (111) is connected to the gate supporting plate (121), and the pull rod (111) is a plurality of pull rods evenly arranged along the length direction of the gate supporting plate (121).

6. The gate according to claim 5, characterized in that: The gate support plate (121) is made of SIC material, and the insulation plate (122) is made of high temperature resistant ceramic fiber board.

7. A shaping furnace, characterized in that: The shaping furnace comprises a gate (10), and the gate (10) is the gate (10) according to any one of claims 1 to 6.

8. The shaping furnace according to claim 7, characterized in that: The shaping furnace further comprises a furnace cavity (20), the furnace cavity (20) having a plurality of furnace cavities (20), the plurality of furnace cavities (20) being arranged along the flow direction of the glass ribbon (100), and the gate (10) being arranged between the furnace cavities (20).

9. The shaping furnace according to claim 8, characterized in that: A supporting platform (30) is installed on the inner wall of the furnace chamber (20), and the gate structure (12) is movably placed on the supporting platform (30).

10. The shaping furnace according to claim 9, characterized in that: The pull rod (111) passes through the inner wall of the furnace cavity (20), and the shaping furnace also includes a support portion (40). The support portion (40) has a through hole, and the pull rod (111) passes through the through hole. Nuts are installed on the pull rod (111) at positions at both ends of the through hole.

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