CN114620927B - Annealing device for reducing tensile stress of glass edge - Google Patents
Annealing device for reducing tensile stress of glass edge Download PDFInfo
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- CN114620927B CN114620927B CN202210251955.9A CN202210251955A CN114620927B CN 114620927 B CN114620927 B CN 114620927B CN 202210251955 A CN202210251955 A CN 202210251955A CN 114620927 B CN114620927 B CN 114620927B
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- ring
- heat storage
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- annealing
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses an annealing device for reducing tensile stress of glass edges, which comprises an annealing ring and a heat storage assembly, wherein the annealing ring comprises an inner ring for supporting glass. The heat storage assembly comprises a fixed ring, a heat storage piece and a heat storage ring, wherein the heat storage piece conducts heat to the inner ring. The heat accumulating ring is fixed inside the inner ring, and the ring surface is lower than the contact surface of the inner ring for contacting glass. The plurality of heat accumulating pieces are distributed along the inner side of the heat accumulating ring, and two ends of the heat accumulating pieces are respectively connected with the heat accumulating ring and the fixing ring. According to the invention, the heat storage component consisting of the heat storage ring, the heat storage piece and the fixing ring is additionally arranged at the position of the inner ring lower than the contact surface, and the heat storage component is absorbed and conducts heat in the glass production process, so that the temperature of the ring surface of the annealing ring is effectively kept, the temperature difference between the glass and the contact surface of the annealing ring is not excessive during glass annealing, and further the tensile stress of the inner layer of the glass is effectively released while the size of the contact surface of the glass and the contact surface of the annealing ring is not changed, thereby achieving the purpose of reducing the tensile stress of the edge of the glass, reducing the cracking risk of the glass and guaranteeing the product quality.
Description
Technical Field
The invention relates to the technical field of glass annealing processing, in particular to an annealing device for reducing tensile stress of glass edges.
Background
The existing process flow for pressing the interlayer single sheet comprises the following steps: loading, heating, pressing, annealing and cooling. Wherein, the frock that needs to use in the annealing process is the annealing ring. The existing annealing ring is formed by welding and fixing four stainless steel flat irons with holes or without holes according to different specifications and shapes of glass and an outer frame. The middle of the annealing ring is in a hollowed-out state.
In the glass manufacturing process, after the softened glass is pressed by a mold, the softened glass is sucked up by a male mold through vacuum control. At the moment, the annealing ring moves right below the male die, the male die is released in vacuum, the glass falls onto the annealing ring, then the annealing ring moves to the annealing area, the upper fan and the lower fan are started for annealing, and the annealed glass flows to the cooling area for surface cooling.
The annealing ring is one of the main reasons that affects the formation of tensile stress at the edges of the glass during annealing. When the softened glass falls on the annealing ring and is annealed in the annealing zone, a temperature difference is generated due to the fact that the temperature of the glass is inconsistent with the temperature of the contact surface of the annealing ring. At this time, the surface of the glass edge is cooled too fast, the inner layer of the glass is cooled too slowly, so that the tensile stress of the inner layer of the glass cannot be effectively released, the tensile stress of the glass edge is too large, a certain risk of breaking is often present after the glass is sold, and hidden danger is brought to the quality of the product.
When the glass falls onto the annealing ring, the larger the contact surface between the glass and the annealing ring is, the larger the tensile stress of the edge of the glass is; the smaller the contact surface between the glass and the annealing ring is, the glass has a certain deviation in the heating and discharging processes, so that the glass may have a die dropping phenomenon in the ring dropping process, and batch defective products are generated.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the annealing device for reducing the tensile stress of the glass edge is provided, the tensile stress of the glass edge is reduced while the size of the contact surface between the glass and an annealing ring is not changed, and the product quality is ensured.
In order to solve the technical problems, the invention adopts the following technical scheme:
an annealing device for reducing tensile stress of glass edges comprises an annealing ring and a heat storage component, wherein the annealing ring comprises an inner ring for supporting glass;
the heat storage assembly includes a stationary ring, a heat storage member and a heat storage ring that conduct heat to the inner ring:
the heat accumulation ring is fixed in the inner ring, and the ring surface is lower than the contact surface of the inner ring for contacting glass;
the plurality of heat accumulating pieces are distributed and arranged along the inner side of the heat accumulating ring, and two ends of each heat accumulating piece are respectively connected with the heat accumulating ring and the fixing ring.
Further, the heat storage member is disposed obliquely in a direction away from the contact surface.
Further, the fixing ring is fixedly connected with one side, far away from the contact surface, of the end part of the heat storage piece.
Further, a plurality of heat accumulating pieces are uniformly distributed along the inner side of the heat accumulating ring.
Further, one end of the heat storage piece, which is close to the heat storage ring, is fixed on one surface of the heat storage ring, which is far away from the contact surface.
Further, the heat accumulating piece and the heat accumulating ring are an iron piece and an iron ring respectively.
Further, the heat accumulating piece is welded and fixed with the heat accumulating ring and the heat accumulating ring is welded and fixed with the inner ring.
Further, the fixing ring is a stainless steel ring.
Further, stainless steel heat-insulating membrane cloth is arranged on the fixing ring, the heat storage piece and the heat storage ring.
The invention has the beneficial effects that: an annealing device for reducing tensile stress of glass edges is characterized in that a heat storage component consisting of a heat storage ring, a heat storage piece and a fixing ring is additionally arranged at the position, lower than a contact surface, of an inner ring, heat conduction is absorbed and carried out in the glass production process, so that the temperature of the ring surface of the annealing ring is effectively kept, the temperature difference between the glass and the contact surface of the annealing ring can not be too large when the glass is annealed, and the tensile stress of the inner layer of the glass is effectively released when the size of the contact surface of the glass and the annealing ring is not changed, the purpose of reducing the tensile stress of the glass edges is achieved, the breaking risk of the glass is reduced, and the product quality is ensured.
Drawings
FIG. 1 is a schematic view of an inner ring portion of an annealing device for reducing tensile stress on a glass edge according to an embodiment of the present invention;
fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
Description of the reference numerals:
1. an inner ring; 2. a fixing ring; 3. a heat storage member; 4. a heat storage ring; 5. a contact surface.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 and 2, an annealing device for reducing tensile stress of a glass edge comprises an annealing ring and a heat storage component, wherein the annealing ring comprises an inner ring 1 for supporting glass;
the heat storage assembly comprises a fixed ring 2, a heat storage piece 3 and a heat storage ring 4, wherein the heat storage piece 3 and the heat storage ring 4 conduct heat to the inner ring:
the heat accumulating ring 4 is fixed in the inner ring 1, the ring surface is lower than the contact surface 5 of the inner ring 1 for contacting glass, and preferably, the edge part of the heat accumulating ring 4 is positioned at a height position of 10mm-35mm below the contact surface 5 of the inner ring 1.
The plurality of heat accumulating pieces 3 are distributed and arranged along the inner side of the heat accumulating ring 4, and two ends of each heat accumulating piece 3 are respectively connected with the heat accumulating ring 4 and the fixing ring 2.
From the above description, the heat storage component comprising the heat storage ring 4, the heat storage piece 3 and the fixing ring 2 is additionally arranged at the position of the inner ring 1 lower than the contact surface 5, so that heat conduction is absorbed and carried out in the glass production process, the temperature of the ring surface of the annealing ring is effectively kept, the temperature difference between the glass and the contact surface 5 can not be too large during glass annealing, and further the tensile stress of the inner layer of the glass is effectively released while the size of the contact surface 5 is not changed, the purpose of reducing the tensile stress of the edge of the glass is achieved, the cracking risk of the glass is reduced, and the product quality is ensured.
Further, the heat storage member 3 is disposed obliquely in a direction away from the contact surface 5.
From the above description, it is known to arrange the heat accumulating member 3 obliquely in a direction away from the contact surface 5, so as to avoid the heat accumulating member 3 coming into contact with the convex surface of the glass when the annealed ring receives the softened glass, thereby affecting the quality of the finished glass.
Further, the fixing ring 2 is fixedly connected to a side of the end portion of the heat storage member 3 away from the contact surface 5.
As is apparent from the above description, the fixing ring 2 is provided below the heat storage member 3 to avoid contact with glass.
Further, the plurality of heat storage members 3 are uniformly distributed along the inner side of the heat storage ring 4. Preferably, the spacing distance between the plurality of the heat storage members 3 is 40 to 80mm.
From the above description, the heat storage members 3 are uniformly distributed along the inner ring 1, so that the temperature of each part of the inner ring 1 can be kept as consistent as possible, and the temperature difference between each part of the inner ring 1 and the corresponding glass edge can be reduced within a certain range, so as to ensure the quality of the finished glass.
Further, one end of the heat accumulating member 3 close to the heat accumulating ring 4 is fixed to a face of the heat accumulating ring 4 away from the contact face 5.
As is apparent from the above description, the heat storage member 3 is mounted on the side of the heat storage ring 4 remote from the contact surface 5 so as to be as far away from the contact surface 5 as possible while the heat storage ring 4 is kept in contact with heat conduction, so as to avoid contact with glass.
Further, the heat accumulating member 3 and the heat accumulating ring 4 are an iron member and an iron ring, respectively.
From the above description, it is known that the heat storage capacity and the heat conduction capacity of the iron member and the iron ring are strong, and the temperature of the inner ring 1 can be effectively maintained.
Further, the heat accumulating piece 3 and the heat accumulating ring 4 and the annealing ring are welded and fixed.
From the above description, it is known that the welding and fixing are convenient for conducting heat between the heat storage member 3, the heat storage ring 4 and other components while ensuring sufficient connection strength, so as to achieve good temperature maintaining effect.
Further, the fixing ring 2 is a stainless steel ring.
From the above description, the fixing ring 2 is a stainless steel ring, which has good corrosion resistance and long service life.
Further, stainless steel heat-insulating film cloth is arranged on the fixing ring 2, the heat storage piece 3 and the heat storage ring 4.
From the above description, the stainless steel thermal insulation film cloth is arranged on the fixing ring 2, the heat storage piece 3 and the heat storage ring 4, so that the thermal insulation effect is good, the cooling speed of the edge surface of the glass is effectively reduced, and the sufficient release of the tensile stress in the glass is ensured.
The annealing device for reducing the tensile stress of the glass edge can be applied to the scene of glass processing production, and the following description is given by specific embodiments:
referring to fig. 1 and 2, a first embodiment of the invention is as follows:
an annealing device for reducing tensile stress of glass edges, as shown in fig. 1, comprises an annealing ring and a heat storage assembly, wherein the annealing ring comprises an inner ring 1 for supporting glass. The heat storage assembly comprises a fixed ring 2, a heat storage member 3 and a heat storage ring 4 which conduct heat to the inner ring. The heat accumulating ring 4 is fixed in the inner ring 2, and the ring surface is lower than the contact surface 5 of the inner ring 2 for contacting glass. The plurality of heat accumulating pieces 3 are uniformly distributed along the inner side of the heat accumulating ring 4, and two ends of the heat accumulating pieces 3 are respectively connected with the heat accumulating ring 4 and the fixing ring 2. And stainless steel heat preservation membrane cloth is spot welded on the fixed ring 2, the heat storage piece 3 and the heat storage ring 4 so as to improve the heat storage and heat preservation effects of all the components. The fixing ring 2 is a stainless steel ring.
In this embodiment, as shown in fig. 2, in order to ensure that the heat storage assembly is kept away from the contact surface 5 as far as possible, and is prevented from coming into contact with the glass, the heat storage material 3 is inclined in a direction away from the contact surface 5. The fixing ring 2 is fixedly connected with one side of the end part of the heat accumulating piece 3 away from the contact surface 5. One end of the heat accumulating member 3, which is close to the heat accumulating ring 4, is fixed to a surface of the heat accumulating ring 4, which is away from the contact surface 5.
In the present embodiment, the heat storage member 3 and the heat storage ring 4 are a ferrous member and a ferrous ring, respectively. In other equivalent embodiments, other metal components with excellent heat storage performance can be selected for the heat storage member 3 and the heat storage ring 4.
In this embodiment, an annealing device for reducing tensile stress of a glass edge is used as follows:
in the actual cyclic production process, the heat storage member 3 and the heat storage ring 4 store the absorbed heat, so that the temperature of the inner ring 1 is effectively maintained via heat conduction. In this way, when the softened glass falls on the inner ring 1 of the annealing ring for annealing, the temperature difference between the edge of the glass and the contact surface 5 of the inner ring 1 is not too large, so that the temperature loss of the edge surface of the glass is also slowed down, the tensile stress of the inner layer of the glass can be effectively released,
in the present embodiment, the heat storage member 3 and the heat storage ring 4 and the inner ring 1 are welded and fixed.
In summary, the annealing device for reducing the tensile stress of the edge of the glass provided by the invention has the advantages that the heat storage component consisting of the heat storage ring, the heat storage piece and the fixing ring is additionally arranged at the position of the inner ring lower than the contact surface, the heat is absorbed and conducted in the glass production process, the temperature of the ring surface of the annealing ring is effectively kept, the temperature difference between the glass and the contact surface is not overlarge during the annealing of the glass, the tensile stress of the inner layer of the glass is effectively released while the size of the contact surface is not changed, the purpose of reducing the tensile stress of the edge of the glass is achieved, the cracking risk of the glass is reduced, and the product quality is ensured.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (9)
1. An annealing device for reducing the tensile stress of the edge of laminated glass is characterized by comprising an annealing ring and a heat storage component, wherein the annealing ring comprises an inner ring for supporting glass;
the heat storage assembly includes a stationary ring, a heat storage member and a heat storage ring that conduct heat to the inner ring:
the heat accumulation ring is fixed in the inner ring, and the ring surface is lower than the contact surface of the inner ring for contacting glass;
the plurality of heat accumulating pieces are distributed and arranged along the inner side of the heat accumulating ring, and two ends of each heat accumulating piece are respectively connected with the heat accumulating ring and the fixing ring.
2. An annealing apparatus for reducing the tensile stress of an edge of a laminated glass according to claim 1, wherein said heat storage member is provided obliquely in a direction away from said contact surface.
3. An annealing device for reducing the tensile stress of a laminated glass edge according to claim 1, wherein said fixing ring is fixedly connected to a side of an end portion of said heat storage member remote from said contact surface.
4. An annealing device for reducing the edge tensile stress of laminated glass according to claim 1, wherein a plurality of said heat accumulating members are uniformly distributed along the inner side of said heat accumulating ring.
5. An annealing apparatus for reducing the edge tensile stress of a laminated glass according to claim 1, wherein one end of said heat storage member adjacent to said heat storage ring is fixed to a face of said heat storage ring remote from said contact face.
6. An annealing device for reducing the edge tensile stress of laminated glass according to claim 1, wherein the heat accumulating member and the heat accumulating ring are an iron member and an iron ring, respectively.
7. An annealing device for reducing the edge tensile stress of laminated glass according to claim 1, wherein the heat accumulating member is welded and fixed to the heat accumulating ring and the heat accumulating ring is welded and fixed to the inner ring.
8. An annealing device for reducing the edge tensile stress of laminated glass according to claim 1, wherein said fixing ring is a stainless steel ring.
9. The annealing device for reducing the edge tensile stress of the laminated glass according to claim 1, wherein stainless steel heat-insulating film cloths are arranged on the fixing ring, the heat storage piece and the heat storage ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210251955.9A CN114620927B (en) | 2022-03-15 | 2022-03-15 | Annealing device for reducing tensile stress of glass edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210251955.9A CN114620927B (en) | 2022-03-15 | 2022-03-15 | Annealing device for reducing tensile stress of glass edge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114620927A CN114620927A (en) | 2022-06-14 |
| CN114620927B true CN114620927B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210251955.9A Active CN114620927B (en) | 2022-03-15 | 2022-03-15 | Annealing device for reducing tensile stress of glass edge |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5302176A (en) * | 1991-09-04 | 1994-04-12 | Nippon Sheet Glass Co., Ltd. | Method of and apparatus for bending sheet glass |
| US5385786A (en) * | 1993-02-09 | 1995-01-31 | Glasstech, Inc. | Apparatus and method for controlling stresses in laminated automotive glass |
| CN102795760A (en) * | 2012-07-30 | 2012-11-28 | 福耀集团（上海）汽车玻璃有限公司 | Novel automobile sandwich glass compression moulding die |
| CN111704351A (en) * | 2020-07-13 | 2020-09-25 | 郑州福耀玻璃有限公司 | Car front bumper pressing forming process |
| WO2022002736A1 (en) * | 2020-06-29 | 2022-01-06 | Saint-Gobain Glass France | Frame for bending sheets of glass with reduced tensile stress |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9896369B2 (en) * | 2014-11-24 | 2018-02-20 | Glasstech, Inc. | Glass sheet forming and annealing providing edge stress control |
-
2022
- 2022-03-15 CN CN202210251955.9A patent/CN114620927B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5302176A (en) * | 1991-09-04 | 1994-04-12 | Nippon Sheet Glass Co., Ltd. | Method of and apparatus for bending sheet glass |
| US5385786A (en) * | 1993-02-09 | 1995-01-31 | Glasstech, Inc. | Apparatus and method for controlling stresses in laminated automotive glass |
| CN102795760A (en) * | 2012-07-30 | 2012-11-28 | 福耀集团（上海）汽车玻璃有限公司 | Novel automobile sandwich glass compression moulding die |
| WO2022002736A1 (en) * | 2020-06-29 | 2022-01-06 | Saint-Gobain Glass France | Frame for bending sheets of glass with reduced tensile stress |
| CN111704351A (en) * | 2020-07-13 | 2020-09-25 | 郑州福耀玻璃有限公司 | Car front bumper pressing forming process |
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| Publication number | Publication date |
|---|---|
| CN114620927A (en) | 2022-06-14 |
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