Glass pouring forming device
By using heating components and flattening heads in the glass casting molding device, the problem of thermal stress and shape inconsistent during the glass forming process is solved, and efficient and low-cost glass forming is achieved.
Patent Information
- Application Number
- CN202422138572.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-30
AI Technical Summary
During the existing glass forming process, irregular thermal stresses are caused by uneven heat from the inner and outer layers, which affects the quality and shape consistency of the glass, and the incomplete molding device leads to additional plastic processing needs.
A glass casting forming device using a bottom plate lateral through passage, heating assembly, thermal insulation cover and flattening head is used to reduce the temperature difference by heating assembly, and flattening the glass surface in a molten state is used to flatten the glass surface to form a rectangular body close to the standard, reducing deep processing losses.
It improves the quality and efficiency of glass forming, reduces the cost of deep processing, ensures the mechanical strength and optical uniformity of the glass plate, and avoids cracking of the glass plate.
Smart Images
Figure CN223087747U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of glass casting and molding, and more specifically, to a glass casting and molding device. Background Art
[0002] Currently, there are mainly multiple molding methods for glass liquid, such as sintering molding, calendering molding, and casting molding. Among them, the glass sintering molding process is to fill glass powder or particles into a mold and bond and form them through high-temperature sintering to finally form the required glass product; the glass calendering molding process is to pour molten glass onto a calender and flatten it into a sheet by calender rolls to finally form irregular glass; the glass casting molding process includes melting glass, pouring it into a mold, cooling and solidifying, and finally forming a glass product with the required shape. The glass casting molding process is a process of transforming molten glass liquid into a brittle solid glass product. During this process, the glass will have a drastic and uneven temperature change process. The uneven heating of the inner and outer layers will cause different hardening speeds in each direction of the glass plate, resulting in irregular thermal stress in the glass plate.
[0003] This kind of thermal stress will reduce the mechanical strength and thermal stability of the glass product, and also affect the optical uniformity of the glass. If the stress exceeds the ultimate strength of the glass product, the glass will break by itself. Therefore, the existence of uneven thermal stress in the glass is an important defect. Therefore, annealing the formed glass is one of the important factors for producing high-quality glass. At the same time, during the glass casting process, due to the imperfect molding device, the shapes of the formed glass are often different. When further processing the glass in the subsequent process, processes such as shaping, cutting, and grinding are required. Especially for shaping, it is necessary to shape the irregular glass into a regular cuboid or cube, and thus it is necessary to remove the excess glass.
[0004] Therefore, the existing technology still needs to be improved. Summary of the Utility Model
[0005] The purpose of the present application is to provide a glass casting and molding device to solve the problems that in the existing glass molding process, the uneven heating of the inner and outer layers of the glass easily causes different glass molding speeds, resulting in irregular thermal stress in the glass, which affects the glass quality, and the imperfect existing glass molding device leads to different shapes of the formed glass, requiring additional shaping processing.
[0006] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is:
[0007] A glass casting and molding device, comprising:
[0008] A bottom plate, which is laterally provided with a plurality of channels for accommodating a flowing medium. The flowing medium flows in through one side of the channel and flows out through the other side of the channel. Both sides of each channel can be respectively connected to an external pipeline through a connecting pipe to enable the flowing medium in each channel to flow;
[0009] A rear baffle, which is arranged on the upper surface of the bottom plate;
[0010] Two side baffles, which are arranged on the upper surface of the bottom plate and on both sides of the rear baffle. The two side baffles and the bottom plate and the rear baffle enclose a polygon glass forming mold with a single-sided opening;
[0011] A plurality of heating components, which are respectively arranged inside the bottom plate and between adjacent channels. The heating components are used to heat the bottom plate;
[0012] A heat preservation cover, which is arranged on the bottom plate. Part of the rear baffle and the side baffles are located inside the heat preservation cover;
[0013] A leveling ram, which is vertically movably arranged inside the heat preservation cover and is used to level the surface of the glass liquid poured into the polygon glass forming mold through the heat preservation cover.
[0014] According to the glass pouring and forming device described above, the glass pouring and forming device further includes:
[0015] A conveyor belt, which is arranged on the upper surface of the bottom plate and encloses a polygon glass forming mold with a single-sided opening with the two side baffles and the bottom plate. The conveyor belt is used to drive the formed glass plate forward.
[0016] According to the glass pouring and forming device described above, the conveyor belt is set as a steel belt, and the length and width of the conveyor belt are the same as the length and width of the bottom plate.
[0017] According to the glass pouring and forming device described above, the glass pouring and forming device further includes:
[0018] A flattening driving member, whose driving end passes through the heat preservation cover and is connected to the leveling ram, and drives the leveling ram to move vertically back and forth to level the glass liquid in any area in the polygon glass forming mold only once.
[0019] According to the glass pouring and forming device described above, the two side baffles are arranged on the conveyor belt and on both sides of the rear baffle. The side baffles are detachably connected to the conveyor belt.
[0020] According to the glass casting and forming device described above, the heat preservation cover is provided with an observation hole; wherein, the heat preservation cover is set as a glass cover.
[0021] According to the glass casting and forming device described above, the heating assembly includes heating components and thermocouples, and both the heating components and the thermocouples are arranged between adjacent channels.
[0022] According to the glass casting and forming device described above, the bottom plate is set as a steel bottom plate, with its length set to 2400 - 3600 mm, width set to 800 - 1200 mm, and thickness set to 60 - 100 mm.
[0023] According to the glass casting and forming device described above, both the rear baffle and the side baffle are set as steel plates.
[0024] According to the glass casting and forming device described above, the distance between adjacent channels is set to 60 - 160 mm.
[0025] The beneficial effects of a glass casting and forming device provided by this application are at least as follows:
[0026] In this application, a polygon glass forming mold with a single - side opening is formed by two side baffles, a bottom plate and a rear baffle, which is suitable for the casting and forming of glass, and simplifies the glass casting and forming. By setting a vertically movable leveling press head in the heat preservation cover, a vertically downward force can be applied to the glass surface when the glass liquid is still in a molten state, so that the four sides of the glass become flat during the forming process, and the finally formed glass is a nearly standard cuboid, thereby reducing the loss of cutting, grinding and polishing in the deep - processing process of forming the glass plate, improving the effective sheet yield per unit mass of the glass, reducing costs. By setting a heating assembly between adjacent channels inside the bottom plate, the bottom plate can be heated during the glass forming process, reducing the temperature difference between the bottom plate and the glass, thereby reducing the internal stress of the glass. By vertically penetrating a number of channels on the side of the bottom plate, the molten glass liquid can be quickly cooled and shaped, while avoiding excessive temperature difference during the forming process, causing cracking of the glass plate, and ensuring the quality forming of the glass plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0028] Figure 1The side view structural schematic diagram of a glass casting and forming device provided by an embodiment of the present application.
[0029] Figure 2 The top view structural schematic diagram of a glass casting and forming device provided by an embodiment of the present application.
[0030] Among them, each reference numeral in the figure:
[0031] 1. Bottom plate; 11. Channel; 2. Rear baffle; 3. Side baffle; 4. Heating component; 5. Heat preservation cover; 6. Flattening punch; 7. Conveyor belt; 8. Flattening driving member; 9. Glass liquid; 10. Glass plate. Specific embodiments
[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0033] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly or indirectly located on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component. The orientations or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positions shown in the accompanying drawings, and are only for the convenience of description and cannot be construed as limiting the technical solution of the present application. The terms "first" and "second" are only used for the purpose of convenient description and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of technical features. The meaning of "a plurality" is two or more unless otherwise specifically defined.
[0034] Currently, there are mainly various glass liquid forming methods, such as sintering forming, calendering forming and casting forming. Among them, in the process of glass sintering forming, glass powder or particles are filled into a mold and sintered at high temperature to make them bond and form, and finally the required glass products are formed; in the process of glass calendering forming, molten glass is poured onto a calender, and it is flattened into a sheet by calender rolls, and finally irregular glass is formed; the process of glass casting forming includes melting glass, pouring it into a mold, cooling and solidifying, and finally forming the required shape of glass products. The process of glass casting forming is the transformation of molten glass liquid into brittle solid glass products. In this process, the glass will have a fierce and uneven temperature change process. The uneven heating of these inner and outer layers will cause the hardening speeds of each direction of the glass plate to be different, resulting in irregular thermal stress in the glass plate.
[0035] Such thermal stress will reduce the mechanical strength and thermal stability of glass products, and also affect the optical uniformity of glass. If the stress exceeds the ultimate strength of the glass product, the glass will break by itself. Therefore, the existence of uneven thermal stress in glass is an important defect. Thus, annealing the formed glass is one of the key factors in producing high-quality glass. At the same time, during the glass casting process, the shape of the formed glass is often different due to the imperfect forming device. When further processing the glass in the subsequent process, operations such as shaping, cutting, grinding, and polishing are required. Especially for shaping, the irregular glass needs to be shaped into a regular cuboid or cube, which requires removing the excess glass.
[0036] To this end, referring to Figure 1 and Figure 2 , an embodiment of the present application provides a glass casting and forming device, including a bottom plate 1, a rear baffle 2, two side baffles 3, a plurality of heating components 4, a heat preservation cover 5, and a leveling press head 6. A plurality of channels 11 are vertically formed through the side of the bottom plate 1. The channels 11 are used to accommodate a flowing medium. The flowing medium can be one or more of a gas medium and a liquid medium, which can be selected according to requirements. The flowing medium flows in from one side of the channels 11 and flows out through the other side of the channels 11. Both sides of each channel 11 can be respectively connected to an external pipeline through a connecting pipe to enable the flowing medium in each channel 11 to flow. The rear baffle 2 is disposed on the upper surface of the bottom plate 1. The two side baffles 3 are disposed on the upper surface of the bottom plate 1 and are located on both sides of the rear baffle 2. The two side baffles 3, the bottom plate 1, and the rear baffle 2 enclose a polygon glass forming mold with a single-sided opening. A plurality of heating components 4 are respectively disposed inside the bottom plate 1 and are located between adjacent channels 11. The heating components 4 are used to heat the bottom plate 1. The heat preservation cover 5 is disposed on the bottom plate 1. Part of the rear baffle 2 and the side baffles 3 are located inside the heat preservation cover 5. The leveling press head 6 is vertically movably disposed inside the heat preservation cover 5 and is used to level the glass liquid 9 poured into the polygon glass forming mold through the heat preservation cover 5.
[0037] In this embodiment, a polygon glass forming mold with a single-sided opening is formed by two side baffles 3, a bottom plate 1 and a rear baffle 2, which is suitable for the casting and forming of glass, and makes the casting and forming of glass simple. By arranging a leveling press head 6 that can move vertically in the heat preservation cover 5, a vertically downward force can be applied to the glass surface when the glass liquid 9 is still in a molten state, so that the four sides of the glass become flat during the forming process, and the finally formed glass is a nearly standard cuboid, thereby reducing the loss of cutting, grinding and polishing in the deep processing of the formed glass plate 10, improving the effective sheet yield per unit mass of the glass, reducing costs. By arranging a heating component 4 between two adjacent channels 11 inside the bottom plate 1, the bottom plate 1 can be heated during the glass forming process, reducing the temperature difference between the bottom plate 1 and the glass, thereby reducing the internal stress of the glass. By arranging a number of channels 11 penetrating laterally through the bottom plate 1, the molten glass liquid 9 can be quickly cooled and shaped, and at the same time, the temperature difference during the forming process is avoided from being too large, causing the glass plate 10 to crack, ensuring the quality forming of the glass plate 10. The structure of this device is simple and has a wide adaptability. It can be used not only for industrial production but also for laboratories.
[0038] Optionally, in one embodiment, the bottom plate 1 can be set as a steel bottom plate 1 with good thermal conductivity and heat resistance, and its outer shape is set as an integrally formed rectangle. The upper surface of the bottom plate 1 is polished to ensure the flatness of the plate surface of the glass plate 10.
[0039] Among them, the length of the bottom plate 1 can be set to 2400 - 3600 mm, the width can be set to 800 - 1200 mm, and the thickness can be set to 60 - 100 mm.
[0040] Optionally, refer to Figure 1 and Figure 2 , in one embodiment, the glass casting and forming device further includes a conveyor belt 7. The conveyor belt 7 can be set as a heat-resistant steel belt, and the steel belt can be integrally cast or composed of multiple plate bodies spliced together. The outer shape of the conveyor belt 7 can be set as a rectangle. The conveyor belt 7 is arranged on the upper surface of the bottom plate 1 and forms a polygon glass forming mold with a single-sided opening with the two side baffles 3 and the bottom plate 1. The conveyor belt 7 is used to drive the formed glass plate 10 forward. The speed of the conveyor belt 7 is related to the frequency of the leveling press head 6, and its conveying speed is adjustable. By adjusting the speed of the conveyor belt 7, the time of the glass on the conveyor belt 7 can be controlled, and then the heating time of the glass by the heating component 4 can be controlled, so that the glass temperature is close to the glass annealing temperature, ensuring the glass forming quality.
[0041] Among them, the length of the conveyor belt 7 can be set to 2400 - 3600 mm, the width can be set to 800 - 1200 mm, and the thickness can be set to 60 - 100 mm. The length of the conveyor belt 7 is the same as the length of the bottom plate 1, and the width of the conveyor belt 7 is the same as the width of the bottom plate 1.
[0042] Optionally, refer to Figure 1 and Figure 2 , in an embodiment, the rear baffle 2 is arranged on the bottom plate 1 through the conveyor belt 7, and its height is not less than the thickness of the glass plate 10, generally taking 20 - 300 mm. In order to protect the rear baffle 2 from being eroded by the high-temperature glass liquid 9, a channel can also be arranged inside the rear baffle 2 for accommodating the flowing medium.
[0043] Among them, the rear baffle 2 can be set as a heat-resistant steel plate, and its thickness can be set to 20 - 80 mm.
[0044] Optionally, refer to Figure 1 and Figure 2 , in an embodiment, the side baffle 3 is arranged on the bottom plate 1 through the conveyor belt 7. The inner side surface of the side baffle 3 (the side corresponding to forming the polygonal glass forming mold) is set as a polished surface, and this polished surface has been polished. The two side baffles 3 are detachably connected to the conveyor belt 7. In this embodiment, by detachably connecting the side baffle 3 to the conveyor belt 7, it is convenient to adjust the distance between the two side baffles 3 to adjust the width of the polygonal glass forming mold, thereby adjusting the forming width of the glass plate 10 solidified in the mold.
[0045] Among them, the side baffle 3 can be set as a heat-resistant steel plate, and its thickness can be set to 10 - 30 mm.
[0046] Optionally, refer to Figure 1 , in an embodiment, the glass casting and forming device further includes a flattening driving member 8. The driving end of the flattening driving member 8 passes through the heat insulation cover 5 and is connected to the leveling press head 6, and drives the leveling press head 6 to move vertically back and forth to level the surface of the glass liquid 9 in the polygonal glass forming mold.
[0047] Optionally, in an embodiment, the pressing frequency and force of the leveling press head 6 are adjustable, and the leveling press head 6 is matched with the speed of the conveyor belt 7. By adjusting the pressing frequency of the leveling press head 6 and the speed of the conveyor belt 7, the front end of the non-pressed area is made to coincide with the front end of the leveling press head 6, so as to uniformly apply pressure to each area of the glass and ensure that each area of the glass is leveled only once.
[0048] Optionally, in one embodiment, an observation hole (not shown in the figure) is opened on the heat-insulating cover 5, wherein the transparent cover body can be set as a high-temperature resistant glass cover.
[0049] Optionally, in one embodiment, the spacing between adjacent channels 11 is set to 60-160 mm. In a preferred embodiment, the spacing between adjacent channels 11 is set to 110 mm.
[0050] Optionally, in one embodiment, the heating component 4 includes a heating element and a thermocouple, and the heating element and the thermocouple are both arranged between adjacent channels 11. During the glass forming process, the thermocouple can heat the base plate 1, thereby reducing the temperature difference between the base plate 1 and the glass, thereby reducing the internal stress of the glass.
[0051] The heating and cooling rates of the thermocouple can be controlled within a range of 1 to 20° C. / min, so that the annealing temperature required after glass forming can be adjusted according to the annealing requirements of different glass formulations.
[0052] A molding process of a glass casting and molding device may be as follows: the glass liquid 9 from the glass liquid 9 supply channel flows into the rear part of the polygonal glass molding mold (the end of the polygonal glass molding mold near the rear baffle 2) in the form of a stream column, and continuously flows, diffuses, and flattens along the conveyor belt 7 on the bottom plate 1, and flows to the bottom of the flattening head 6, and forms a glass plate 10 of a certain width and thickness but not solidified. In this process, the flattening head 6 will reciprocate toward the lower seat, continuously applying pressure to the incompletely formed glass plate 10 to flatten the glass plate 10, wherein the movement distance of the flattening head 6 is related to the thickness of the formed glass plate 10 and can be adjusted accordingly according to the thickness of the formed glass plate 10;
[0053] After being flattened by the flattening head 6, the glass plate 10 is gradually cooled, solidified, and shaped at the front of the polygonal glass forming mold (the end of the polygonal glass forming mold away from the rear baffle 2). The shaped glass plate 10 is continuously pulled forward from the front of the polygonal glass forming mold by the conveyor belt 7 to achieve continuous glass casting and forming, forming the glass plate 10. The heat preservation cover 5 arranged at the rear of the polygonal glass forming mold can ensure that the glass liquid 9 flowing into the polygonal glass forming mold has sufficient temperature and fluidity, so that the glass liquid 9 can flow smoothly and flatten in this area. The flattening head 6 located on the bottom plate 1 can apply a vertical downward force to the glass, so that the glass is a standard rectangular parallelepiped after being formed, reducing the loss in the later cutting, grinding and polishing, thereby improving the unit quality of the piece rate.
[0054] In summary, a glass casting and molding device provided by the present application includes a bottom plate 1, a rear baffle 2, two side baffles 3, a plurality of heating components 4, a heat preservation cover 5, and a leveling press head 6. A plurality of channels 11 are vertically penetrated through the side of the bottom plate 1. The channels 11 are used to accommodate a flowing medium, and the flowing medium can be one or more of a gas medium and a liquid medium, which can be selected according to requirements. The flowing medium flows in from one side of the channels 11 and flows out through the other side of the channels 11. Both sides of each channel 11 can be respectively connected to an external pipeline through a connecting pipe to enable the flowing medium in each channel 11 to flow. The rear baffle 2 is arranged on the upper surface of the bottom plate 1. The two side baffles 3 are arranged on the upper surface of the bottom plate 1 and are located on both sides of the rear baffle 2. The two side baffles 3, the bottom plate 1, and the rear baffle 2 enclose a polygon glass molding die with a single-sided opening. A plurality of the heating components 4 are respectively arranged inside the bottom plate 1 and are located between adjacent channels 11. The heating components 4 are used to heat the bottom plate 1. The heat preservation cover 5 is arranged on the bottom plate 1. Part of the rear baffle 2 and the side baffles 3 are located inside the heat preservation cover 5. The leveling press head 6 is vertically movably arranged inside the heat preservation cover 5 and is used to level the glass liquid 9 poured into the polygon glass molding die through the heat preservation cover 5. In the present application, a polygon glass molding die with a single-sided opening is enclosed by the two side baffles 3, the bottom plate 1, and the rear baffle 2, which is suitable for the casting and molding of glass and simplifies the glass casting and molding. By arranging a vertically movable leveling press head 6 inside the heat preservation cover 5, a vertically downward force can be applied to the glass surface when the glass liquid 9 is still in a molten state, so that the four sides during the glass molding process change from a curved surface to a flat surface, and the finally molded glass is a nearly standard cuboid, thereby reducing the loss of cutting, grinding, and polishing in the deep processing process of forming the glass plate 10, improving the effective sheet yield per unit mass of the glass, reducing costs. By arranging the heating components 4 between adjacent two channels 11 inside the bottom plate 1, the bottom plate 1 can be heated during the glass molding process, reducing the temperature difference between the bottom plate 1 and the glass, thereby reducing the internal stress of the glass. By vertically penetrating a plurality of channels 11 through the side of the bottom plate 1, the molten glass liquid 9 can be quickly cooled and shaped, and at the same time, the temperature difference during the molding process is avoided from being too large, causing the glass plate 10 to crack, ensuring the quality molding of the glass plate 10. The structure of this device is simple and has a wide adaptability. It can be used not only for industrial production but also for laboratories.
[0055] The foregoing are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A glass casting and molding device, characterized in that, Comprising: A bottom plate, which is laterally penetrated with a plurality of channels for accommodating a flowing medium. The flowing medium flows in through one side of the channel and flows out through the other side of the channel. Both sides of each channel can be respectively connected to an external pipeline through a connecting pipe to enable the flowing medium in each channel to flow; A rear baffle, which is arranged on the upper surface of the bottom plate; Two side baffles, which are arranged on the upper surface of the bottom plate and on both sides of the rear baffle. The two side baffles, the bottom plate and the rear baffle enclose a polygon glass forming mold with a single-side opening; A plurality of heating components, which are respectively arranged inside the bottom plate and between adjacent channels, and the heating components are used for heating the bottom plate; A heat preservation cover, which is arranged on the bottom plate, and part of the rear baffle and the side baffles are located inside the heat preservation cover; A leveling punch, which is vertically movably arranged inside the heat preservation cover and is used for leveling the surface of the molten glass poured into the polygon glass forming mold through the heat preservation cover.
2. The glass casting and molding device according to claim 1, wherein The glass casting and forming device further comprises: A conveyor belt, which is arranged on the upper surface of the bottom plate and, together with the two side baffles and the bottom plate, encloses a polygon glass forming mold with a single-side opening. The conveyor belt is used for driving the formed glass plate to move forward.
3. The glass casting and molding device according to claim 2, wherein, The conveyor belt is set as a steel belt, and the length and width of the conveyor belt are the same as the length and width of the bottom plate.
4. The glass casting and molding device according to claim 1, characterized in that, The glass casting and forming device further comprises: A flattening driving member, whose driving end passes through the heat preservation cover and is connected to the leveling punch, and drives the leveling punch to move vertically back and forth to level the molten glass in any area of the polygon glass forming mold only once.
5. The glass casting and molding device according to claim 2, characterized in that, The two side baffles are arranged on the conveyor belt and on both sides of the rear baffle, and the side baffles are detachably connected to the conveyor belt.
6. The glass casting and molding device according to claim 1, wherein, The heat preservation cover is provided with an observation hole; Wherein, the heat preservation cover is set as a glass cover.
7. The glass casting and molding device according to claim 1, characterized in that, The heating component includes a heating element and a thermocouple, and both the heating element and the thermocouple are arranged between adjacent channels.
8. The glass casting and forming device according to claim 1, characterized in that, The bottom plate is set as a steel bottom plate, with a length of 2400 - 3600 mm, a width of 800 - 1200 mm, and a thickness of 60 - 100 mm.
9. The glass casting and molding device according to claim 1, wherein, Both the rear baffle and the side baffles are set as steel plates.
10. The glass casting and molding device according to claim 1, characterized in that, The distance between adjacent channels is set as 60 - 160 mm.