CN113045190A - Method for eliminating wind spots of arc-shaped curved surface toughened glass - Google Patents
Method for eliminating wind spots of arc-shaped curved surface toughened glass Download PDFInfo
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- CN113045190A CN113045190A CN202110391687.6A CN202110391687A CN113045190A CN 113045190 A CN113045190 A CN 113045190A CN 202110391687 A CN202110391687 A CN 202110391687A CN 113045190 A CN113045190 A CN 113045190A
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/0404—Nozzles, blow heads, blowing units or their arrangements, specially adapted for flat or bent glass sheets
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Abstract
A method for eliminating wind spots on arc curved surface toughened glass includes such steps as heating the glass to a predefined temp, bending, quenching while toughening, and blocking the quenched wind channel between wind grate frames by a blocking unit. The scheme is characterized in that the process is innovated, in the glass quenching tempering period, a blocking device is arranged in the gap of the air grid frameworks to block quenching air escape channels formed among the air grid frameworks, when all the quenching air escape channels are blocked, the intensity of a temperature field does not alternate along the arc direction of glass, the homogenization of the temperature field at each position on the surface of the glass is improved, and then the purpose of preventing wind spots on the surface of the arc-shaped curved tempered glass is achieved.
Description
Technical Field
The invention belongs to the technical field of toughened glass processing technology, and particularly relates to a method for eliminating wind spots of arc-shaped curved surface toughened glass.
Background
At present, the tempering process adopted for the arc curved surface tempering glass, especially the large-page arc glass for buildings, is to send the heated glass into a forming area, and simultaneously complete the forming and quenching tempering processes in the forming area, the tempering process of the glass is required to be 'uniform heating of all parts of the glass and then rapid and uniform quenching', in the heating and quenching processes, any place on the surface of the glass is provided with 'marks' with different degrees after tempering is finished if the temperature is different from the temperature field of the whole surface, and the 'marks' are 'appearance' of the tempering result caused by the difference of the quenching temperature fields of all parts of the surface in the quenching process, and are commonly called 'wind spots' in the industry.
At present, all the arc-shaped curved surface toughened glass prepared by adopting the process has the tempered wind spots, but the expression forms and the visualization degrees of the wind spots are different due to different glass thicknesses, different curvatures, different heating temperatures, different quenching wind pressures, different blowing distances and other factors, but the wind spots on the surface of the arc-shaped curved surface toughened glass are fundamentally a defect influencing the optical performance of the surface of the glass. In recent years, as the aesthetic ability of people is improved, people increasingly expect that the surface of the arc-shaped curved surface toughened glass has no wind spots or visible wind spots.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method for eliminating wind spots on curved tempered glass, which can eliminate wind spots on the curved tempered glass to the maximum extent, thereby greatly improving the optical performance of the glass surface and the visual comfort.
The technical scheme adopted by the invention is as follows:
a method for eliminating wind spots of arc curved toughened glass, the glass reaches a preset temperature in a heating zone, enters a quenching and toughening period after bending and forming,
in the quenching and tempering time period of the glass, a blocking device is arranged in the gap of the air grid frameworks to block a quenching air escape channel formed between the air grid frameworks, so that the glass is positioned in a space with consistent temperature field strength along the arc direction.
Further preferably, the plugging device comprises a plurality of plugging pieces arranged in gaps of the air grid frameworks, and the quenching air escape channel formed between the air grid frameworks is isolated by changing the positions or shapes of the plugging pieces.
Preferably, the blocking piece is a sealing plate, and the sealing plate can be driven by a driving mechanism to open or close the quenching air escape channel.
Preferably, the blocking piece is an air bag, and the air bag can open or close the quenching air escape channel through an air inflation and deflation mechanism.
Further optimization, the blocking device seals the quenching air escape channel in the glass quenching tempering time period, and opens the quenching air escape channel in the cooling time period after the tempering is finished.
Preferably, the driving mechanism is provided with a plurality of driving mechanisms, and each driving mechanism can independently drive the corresponding sealing plate.
Further preferably, the driving mechanism is composed of a telescopic assembly and a connecting rod assembly connected between the power end of the telescopic assembly and the sealing plate, the telescopic assembly works, and the sealing plate is driven by the connecting rod assembly to open or close the quenching air escape channel.
Further optimize, telescopic component be any one in cylinder or electric putter.
Further preferably, holes with adjustable sizes are formed in the sealing plate.
The invention has the beneficial effects that:
in the prior art, as shown in fig. 1, a traditional curved toughened glass production device is composed of an air inlet 1, an air grid framework 2, a quenching air nozzle 3, a flexible shaft 4, a conveying wheel 5 and other accessory components, wherein after a heating area of glass 6 reaches a preset temperature, the glass is conveyed to a shaping quenching toughening unit in a flattening state in a high-temperature state, then the air grid framework is curled into an arc state from the flattening state under the action of external force and stops when reaching a preset curvature, the glass swings on the conveying wheel in a reciprocating mode along the length direction of the framework, after the glass is deformed, small holes in the quenching air nozzle blow air to the upper surface and the lower surface of the glass, and the quenching toughening cooling process of the glass is completed. As can be seen from the sectional view of the quenching air grid in the attached figure 1, in the process of quenching glass, air is blown to the upper surface and the lower surface of hot glass from a quenching air nozzle and then escapes from the space of the gap of the air grid framework; when the temperature fields of the upper surface and the lower surface of the glass in the quenching state are analyzed, the swinging direction of the glass is combined, and people can easily see that the strength of the temperature fields in the arc-shaped direction of the glass is sequentially alternated due to the influence of the quenching air escape channel, the strong and weak intervals are related to the intervals of the air grid frameworks, and the analysis of the wind spot condition on the existing glass is consistent with the analysis result. Through theoretical analysis and practical verification, we can draw conclusions: the main reason for generating wind spots on the arc-shaped curved surface toughened glass is a quenching wind escape channel between the wind grid frameworks.
The scheme is characterized in that the process is innovated, in the glass quenching tempering period, a blocking device is arranged in the gap of the air grid frameworks to block quenching air escape channels formed among the air grid frameworks, when all the quenching air escape channels are blocked, the intensity of a temperature field does not alternate along the arc direction of glass, the homogenization of the temperature field at each position on the surface of the glass is improved, and then the purpose of preventing wind spots on the surface of the arc-shaped curved tempered glass is achieved.
Drawings
FIG. 1 is a schematic view showing a prior art apparatus for producing tempered glass having an arc-shaped curved surface;
FIG. 2 is a schematic view of the present invention for plugging the quenching air passage;
FIG. 3 is a schematic view of the occluding device of the present invention in a closed state;
fig. 4 is a schematic structural view of the closure device of the present invention in an open state.
Reference numerals: 1. air inlet 2, air grid framework 3, quenching air nozzle 4, flexible shaft 5, conveying wheel 6, glass 11, hinge 12, sealing plate 13, connecting rod 14, cylinder 15 and connecting rod joint.
Detailed Description
The invention is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.
It should be noted that: unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" or "the" and similar referents in the description and claims of the present invention are not to be construed as limiting in number, but rather as indicating the presence of at least one. The word "comprise" or "comprises", and the like, indicates that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, but does not exclude other elements or items having the same function.
The creation personnel of the invention, engaged in the hot bending forming of glass and the equipment development and development work of curved surface toughened glass for a long time, accumulated abundant practical experience, creatively developed a method for eliminating wind spots of curved surface toughened glass, the technical core is: in the quenching period of the arc curved surface toughened glass, various measures are adopted to perform 'sealing', 'blocking', 'covering', 'blocking', and the like on quenching air escape channels formed between the frameworks, when all the quenching air escape channels are blocked, the intensity of a temperature field is not in a strong and weak alternating phenomenon along the arc direction of the glass, and the purposes of improving the homogenization of the temperature field at each position on the surface of the glass and further eliminating wind spots on the surface of the arc curved surface toughened glass are achieved.
The method specifically comprises the following steps: a method for eliminating wind spots of arc curved toughened glass, the glass reaches a preset temperature in a heating zone, enters a quenching and toughening period after bending and forming,
as shown in figure 2, in the quenching and tempering period of the glass, a blocking device is arranged in the gap of the air grid frameworks to block a quenching air escape channel formed between the air grid frameworks, so that the glass is positioned in a space with consistent temperature field strength along the arc direction of the glass.
It should be noted that: the consistency of the temperature field strength can be understood as that the temperature field strength along the arc direction has no alternate strength, the temperature field can be homogenized to the maximum extent, and the aim of eliminating the wind spots of the arc curved toughened glass is achieved.
In the scheme, the blocking device seals the quenching air escape channel in the glass quenching tempering time period, and opens the quenching air escape channel in the cooling time period after the tempering is finished.
In the scheme, the plugging device has an automatic opening and closing function, can also have a manual control function, can be always in a closed state in the quenching and tempering process of glass, and can be manually opened when broken glass in an air grid needs to be cleaned;
in this scheme, as shown in fig. 2, the plugging device is intended to block the escape passage of the quenching air formed between the air grid frameworks, and according to the purpose of the invention, the person skilled in the art can reasonably select the plugging mode, such as: the plugging device comprises a plurality of plugging pieces arranged in gaps of the air grid frameworks, and the quenching air escape channel formed between the air grid frameworks is isolated by changing the positions or the shapes of the plugging pieces; more specifically: the sealing piece can adopt a sealing plate arranged in a gap of the air grid framework, the sealing plate can be driven by a driving mechanism to open or close the quenching air escape channel, and meanwhile, the size of the opening of the sealing plate can be adjusted according to the situation; or the blocking piece is an air bag which can open or close the quenching air escape channel through an air inflation and deflation mechanism;
it should be noted that: the present invention is not limited to the above-mentioned embodiment using the closing plate and the air bag, and those skilled in the art can reasonably select the structure, shape and material of the above-mentioned closing member according to the actual requirement, and they are not described one by one herein.
It should be noted that: the power for controlling the opening of the plugging device can be a rod mechanism controlled by a cylinder or other control forms; for example: it is possible to use: the driving mechanism consists of a telescopic component and a connecting rod component connected between the power end of the telescopic component and the sealing plate, the telescopic component works, and the sealing plate is driven by the connecting rod component to open or close the quenching air escape channel; the telescopic component is any one of an air cylinder or an electric push rod;
in addition, in the use process of the plugging device, all channels can be opened or closed integrally, and only part of the channels can be controlled according to the requirement;
in this scheme, the shrouding on can be provided with the hole, further, above-mentioned hole size is adjustable, also can be according to the needs in the production process simultaneously, adjust the state that the hole is in to open completely or close, for example: in the glass quenching and tempering time period, the hole is closed to enable the quenching air escape channel to be in a closed state; in the cooling time period after the tempering is finished, the holes can be opened to the maximum state so as to enable the quenching air escape channel to be in the open state; or the holes are opened when the broken glass needs to be cleaned.
Examples 1,
The following describes the structural components of the plugging device in the specific implementation process with reference to fig. 3 and 4, where the plugging device is composed of hinges 11, sealing plates 12, connecting rods 13, air cylinders 14, connecting rod joints 15 and other accessories, where every other air grid framework 2 is provided with one air cylinder 14, the output end of the air cylinder 14 is connected to the connecting rods 13 on both sides through the connecting rod joints 15, each connecting rod is connected to the sealing plate 12 arranged between the two air grid frameworks 2, the sealing plate 12 is fixed on the air grid frameworks 2 through the hinges 11, as shown in fig. 4, when the piston rod of the air cylinder 14 is in an extended state, the sealing plate is retracted towards the middle through the connecting rod, and the channel between the frameworks is opened; as shown in fig. 3, when the piston rod of the cylinder 14 is retracted, the sealing plate is pushed aside by the link mechanism until the sealing plate abuts against the adjacent frame, and at this time, the channel between the frames is closed. The channel device is simple in principle, compact in structure and convenient to implement.
According to the embodiment, the simple improvement is carried out on the basis that the existing arc-shaped curved surface toughened glass forming device is not changed, the plugging device is added, the 'air escape and heat dissipation' channel between the air grid frameworks is controlled to be closed in the glass quenching and toughening period, the homogenization of the temperature field at each position on the surface of the glass is improved, the purpose of preventing the wind spots on the surface of the arc-shaped curved surface toughened glass is achieved, and particularly, the visual effect is very obvious in the use of some large-scale curved surface glass curtain walls and some large-scale landmark building external curved surface glass.
It should be noted that while the invention has been described in terms of the above-mentioned embodiments, other embodiments are also possible. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended that all such changes and modifications be covered by the appended claims and their equivalents.
Claims (9)
1. A method for eliminating wind spots of arc curved surface toughened glass, the glass reaches a preset temperature in a heating zone and enters a quenching toughening period after bending forming, and the method is characterized in that:
in the quenching and tempering time period of the glass, a blocking device is arranged in the gap of the air grid frameworks to block a quenching air escape channel formed between the air grid frameworks, so that the glass is positioned in a space with consistent temperature field strength along the arc direction.
2. The method for eliminating the wind spot on the arc-shaped curved surface toughened glass as claimed in claim 1, which is characterized in that: the plugging device comprises a plurality of plugging pieces arranged in gaps of the air grid frameworks, and the quenching air escape channel formed between the air grid frameworks is isolated by changing the positions or the shapes of the plugging pieces.
3. The method for eliminating the wind spot on the arc-shaped curved surface toughened glass as claimed in claim 2, which is characterized in that: the blocking piece is a sealing plate, and the sealing plate can be driven by a driving mechanism to open or close the quenching air escape channel.
4. The method for eliminating the wind spot on the arc-shaped curved surface toughened glass as claimed in claim 2, which is characterized in that: the blocking piece is an air bag, and the air bag can open or close the quenching air escape channel through an air inflation and deflation mechanism.
5. The method for eliminating the wind spot on the arc-shaped curved surface toughened glass as claimed in claim 1 or 2, which is characterized in that: the blocking device seals the quenching air escape channel in the glass quenching tempering time period, and opens the quenching air escape channel in the cooling time period after the tempering is finished.
6. The method for eliminating the wind spot on the curved tempered glass as claimed in claim 3, wherein the method comprises the following steps: the driving mechanism is provided with a plurality of driving mechanisms, and each driving mechanism can independently drive the corresponding sealing plate.
7. The method for eliminating the wind spot on the curved tempered glass as claimed in claim 3, wherein the method comprises the following steps: the driving mechanism is composed of a telescopic assembly and a connecting rod assembly connected between the power end of the telescopic assembly and the sealing plate, the telescopic assembly works, and the sealing plate is driven by the connecting rod assembly to open or close the quenching air escape channel.
8. The method for eliminating the wind spot on the curved tempered glass as claimed in claim 7, wherein the method comprises the following steps: the telescopic component is any one of an air cylinder or an electric push rod.
9. The method for eliminating the wind spot on the curved tempered glass as claimed in claim 3, wherein the method comprises the following steps: holes with adjustable sizes are arranged on the sealing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110391687.6A CN113045190A (en) | 2021-04-13 | 2021-04-13 | Method for eliminating wind spots of arc-shaped curved surface toughened glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110391687.6A CN113045190A (en) | 2021-04-13 | 2021-04-13 | Method for eliminating wind spots of arc-shaped curved surface toughened glass |
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| CN113045190A true CN113045190A (en) | 2021-06-29 |
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| CN202110391687.6A Pending CN113045190A (en) | 2021-04-13 | 2021-04-13 | Method for eliminating wind spots of arc-shaped curved surface toughened glass |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118459075A (en) * | 2024-07-12 | 2024-08-09 | 洛阳北方玻璃技术股份有限公司 | High-efficient radiating upper and lower air inlet type flat air grid |
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2021
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Cited By (2)
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| CN118459075A (en) * | 2024-07-12 | 2024-08-09 | 洛阳北方玻璃技术股份有限公司 | High-efficient radiating upper and lower air inlet type flat air grid |
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