Adjusting device for glass thickness adjusting box and glass thickness adjusting box
By installing an adjustment device for the exhaust structure in the glass thickness adjustment box, the problem of uncontrollable glass thickness caused by excessive air volume is solved, more precise thickness control and more stable furnace atmosphere are achieved, and process quality is improved.
Patent Information
- Application Number
- CN202421520835.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-06-28
AI Technical Summary
In glass production, the air volume blown in the thickness adjustment box is too large and the gas cannot flow out in a short period of time, resulting in uncontrollable glass thickness and may affect the atmosphere and high-temperature components in the furnace.
An adjustment device for a glass thickness adjustment box is designed, including an exhaust structure, which includes a fan, a speed regulation device and a cooling component. By installing it on a blower duct to adjust the air volume in the box, an air outlet duct is formed to regulate the air flow and reduce the impact on the temperature in other areas.
Through the use of the adjustment device, the adjustment accuracy of the glass thickness can be effectively controlled, the temperature uneven problem caused by the irregular flow of gas in the box can be avoided, and the atmosphere in the furnace can be improved and the quality of the overall working conditions can be improved.
Smart Images
Figure CN222961315U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of TFT liquid crystal glass manufacturing, and particularly relates to an adjusting device for a glass thickness adjusting box and the glass thickness adjusting box. Background Art
[0002] In the process of manufacturing TFT-LCD glass substrates, glass melt is supplied to a trough formed in a refractory forming body. The molten glass overflows at the top of the troughs on both sides of the main body to form two half sheets of glass plates. The glass plates flow downward and then inward along the outer surface of the forming body, along the flow guide plates at both ends of the bottom of the forming body, and converge at the bottom or root of the forming body, where they are fused together to form a single glass plate.
[0003] After flowing down from the forming body, the molten glass is rapidly cooled from a liquid state to a solid state to form a glass plate. Since the temperature change in the furnace body during the glass flow process will cause the temperature of the glass plate to be uneven, and further cause the thickness of the glass plate to be uneven, there is a thickness adjustment air flow during the flowing down of the molten glass, and thickness adjustment boxes are evenly distributed on both sides of the glass plate. Multiple air blowing pipes are inserted equidistantly along the width direction of the glass plate inside the thickness adjustment box. By adjusting the air volume of each air blowing pipe, the temperature change of the soaking plate close to the glass is controlled, so that the temperature of the soaking plate changes with a certain uniformity, thereby adjusting the temperature of each point of the glass plate and adjusting the change of the thickness of the glass plate.
[0004] At present, the thickness adjustment air flow introduces clean high-pressure air, and the air flow is at room temperature, which is equivalent to cooling a part of the soaking plate locally, so that the molten glass is rapidly cooled. Moreover, the greater the air volume, the lower the cooling temperature, the faster the molten glass cools, and the thicker the thickness. If the thickness of the glass needs to be reduced, the air volume needs to be reduced so that the temperature of the soaking plate does not drop or drops more slowly, and the glass thickness is relatively thinner, so as to control the thickness of the glass plate.
[0005] However, in glass production, the air volume and quantity of the blowing air are adjusted at any time according to the thickness of the flowing down glass. Generally, the air volume of the gas will flow away from the gap of the thickness adjustment box. If the air volume blown into the thickness adjustment box is too large, the gas cannot all flow out in a short time (since the gas flow in the box is irregular and will affect the temperature of other areas), which may lead to uncontrollable glass thickness. And if too much gas flows into the furnace body, it will also affect the furnace atmosphere and even damage the high-temperature components in the furnace. Summary of the Utility Model
[0006] The utility model provides an adjusting device for a glass thickness adjusting box and the glass thickness adjusting box, aiming at solving the problem that in current glass production, if the air volume blown into the thickness adjustment box is too large and the gas cannot all flow out in a short time, it may lead to uncontrollable glass thickness and even may affect the inside of the furnace.
[0007] To achieve the above object, the present utility model adopts the following technical solutions:
[0008] An adjusting device for a glass thickness adjusting box, comprising an air extraction structure which can be installed on the air blowing pipe of the glass thickness adjusting box so as to adjust the air volume in the glass thickness adjusting box. The air extraction structure includes an air extraction component and a cooling component connected to the air extraction component; wherein:
[0009] The air extraction component includes a fan. The air inlet end of the fan can be connected to the air blowing pipe of the glass thickness adjusting box, and the air outlet end is connected to the cooling component. The fan is configured with a speed regulating device which can be used to control the rotation speed of the fan;
[0010] The cooling component includes a cooling pipe. A cooling component is arranged in the cooling pipe and can be connected to an external energy supply device.
[0011] In some embodiments, there are two air extraction structures, and the two air extraction structures can be respectively installed on the air extraction pipes on both sides of the glass thickness adjusting box.
[0012] In some embodiments, the fan is connected with a fan air pipe at one end far from the cooling component. The fan air pipe includes a cylindrical section and a reduced diameter section, and the cylindrical section is connected to the fan.
[0013] In some embodiments, the fan includes an axial flow fan or a centrifugal fan.
[0014] In some embodiments, the speed regulating device includes a frequency converter or a potentiometer.
[0015] In some embodiments, the cooling component includes a cooling pipe arranged in the cooling pipe. Both ends of the cooling pipe extend out of the cooling pipe and respectively form a cooling inlet and a cooling outlet. The cooling inlet and the cooling outlet can be connected to an external energy supply device, and the external energy supply device can provide a cooling medium for the cooling pipe.
[0016] Further, at least a part of the cooling pipe in the cooling pipe is a bent pipe.
[0017] Further, the cooling pipe and the external energy supply device form a circulation path.
[0018] In some embodiments, each air extraction structure can be detachably arranged on the air blowing pipe of the glass thickness adjusting box.
[0019] The present invention also provides a glass thickness adjusting box which is installed with the above adjusting device for the glass thickness adjusting box.
[0020] Compared with the prior art, the adjusting device for a glass thickness adjusting box and the glass thickness adjusting box of the present utility model have the following beneficial effects:
[0021] The utility model relates to an adjusting device for a glass thickness adjusting box, which includes an air extraction structure. The air extraction structure can be installed on the air blowing pipe of the glass thickness adjusting box to adjust the air volume in the glass thickness adjusting box. The air extraction structure includes an air extraction component and a cooling component connected to the air extraction component. Among them: the air extraction component includes a fan. The air inlet end of the fan can be connected to the air blowing pipe of the glass thickness adjusting box, and the air outlet end is connected to the cooling component. The fan is configured with a speed regulating device, and the speed regulating device can be used to control the rotation speed of the fan. The cooling component includes a cooling pipe, and a cooling component is arranged in the cooling pipe. The cooling component can be connected to an external energy supply device. Based on this, when the glass thickness adjusting box is performing thickness adjustment operations, if the air volume blown into the box is too large and the gas cannot all flow out of the openings on the side of the box in a short time, resulting in a decrease in the accuracy of the thickness adjustment of the box. By installing an adjusting device on the air inlet pipe of the glass thickness adjusting box, the air inlet pipe forms an air outlet pipe during operation. Generally, the adjusting device is installed at the positions of the two air inlet pipes outside the box mouth, so that the gas in the box forms a relatively regular flow during operation, thereby improving the operation quality.
[0022] For the glass thickness adjusting box in the forming area, the utility model sets an adjusting device to make the control of the air flow and air volume in the glass thickness adjusting box relatively reasonable, and improves the influence of the original air flow release method on the process and equipment. The utility model uses a drive unit with adjustable rotation speed to further optimize the air volume and air speed of the thickness adjustment air. The adjusting devices of the utility model are evenly distributed on the end faces on both sides of the box, and the two adjusting air extraction structures can be adjusted independently, which can cope with a large air volume in a certain area in the width direction, making the air flow direction and air volume in the glass thickness adjusting box flexible and controllable, and having good practicability. Description of the Drawings
[0023] The schematic diagrams in the specification are used to provide a further understanding of the utility model, and constitute a part of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute an improper limitation to the utility model.
[0024] Figure 1 It is a schematic structural diagram of an adjusting device for a glass thickness adjusting box of the utility model;
[0025] Figure 2 It is a schematic installation state diagram of an adjusting device for a glass thickness adjusting box of the utility model.
[0026] Among them, 1. Stainless steel air pipe, 2. Fan;
[0027] 3. Cooling pipe, 31. Cooling inlet, 32. Cooling outlet;
[0028] 4. Fan air duct, 41. Straight tube, 42. Flared tube;
[0029] 5. Speed control device, 6. Cooling pipeline, 7. Inlet air pipe, 8. Blowing box, 9. Blowing box air outlet. Detailed implementation manners
[0030] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0031] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.
[0032] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0033] In the description of the embodiments of the present utility model, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present utility model is normally placed, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.
[0034] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0035] In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and defined, if the terms "set", "installed", "connected", "linked" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0036] How to quickly discharge the air in the glass thickness adjustment box in the blowing forming area, reduce the temperature influence on the remaining areas, and at the same time how to effectively avoid too much gas entering the furnace and affecting the atmosphere in the furnace.
[0037] Such as Figure 1 As shown in the figure, the present utility model provides an adjustment device for a glass thickness adjustment box, including an air extraction structure. The air extraction structure can be installed on the blowing pipe of the glass thickness adjustment box to adjust the air volume in the glass thickness adjustment box. The air extraction structure includes an air extraction component and a cooling component connected to the air extraction component; wherein:
[0038] The air extraction component includes a fan 2. The air inlet end of the fan 2 can be connected to the blowing pipe of the glass thickness adjustment box, and the air outlet end is connected to the cooling component. The fan 2 is configured with a speed control device 5, and the speed control device 5 can be used to control the rotation speed of the fan.
[0039] The cooling component includes a cooling pipe 6. A cooling component is arranged in the cooling pipe 6, and the cooling component can be connected to an external energy supply device.
[0040] Such as Figure 2 As shown in the figure, based on the above, as a preference, the air extraction structure of the present invention can be set to two, and the two air extraction structures are arranged on the blowing pipes on both sides of the glass thickness adjustment box (in the glass width direction, replacing the blowing devices of these two blowing pipes with the air extraction structure of the present utility model). Thus, during the glass thickness adjustment operation, the air inlet pipe 7 arranged in the middle maintains the previous blowing work, but through the design of the present utility model on both sides, the useless or redundant gas blown into the glass thickness adjustment box can be cleaned in time, avoiding the problem that the gas cannot leak out from the air outlet 9 of the blowing box of the glass thickness adjustment box in time, resulting in the problem that the redundant gas affects the regional temperature and causes the glass thickness to be uncontrollable. And after installing the adjustment device for the glass thickness adjustment box of the present utility model, to a certain extent, too much air flow entering the furnace body can be avoided, and it is expected to improve the atmosphere in the furnace and the quality of the overall working conditions.
[0041] Such as Figure 1As shown, in some embodiments, a blower duct 4 is connected to one end of the blower 2 of the present utility model away from the cooling component. The blower duct 4 includes a cylindrical section and a reduced-diameter section. The cylindrical section is connected to the blower 2. The cylindrical section is a straight tube 41, and the reduced-diameter section is a flared tube 42. The radial dimension of the end connected to the blower 2 is larger, which can effectively guide the air. The radial dimension of the end that can be connected to the blowing duct of the glass thickness adjustment box is smaller, and this section is flared, which can smoothly discharge the air from the blowing duct of the glass thickness adjustment box.
[0042] In some embodiments, the blower 2 of the present utility model can be an axial-flow blower or a centrifugal blower to achieve the function of air extraction. Based on this, the blower 2 of the present utility model is controlled for its switch and wind speed by a speed control device 5. As a specific embodiment, the speed control device 5 of the present utility model can, but is not limited to, be a frequency converter or a potentiometer.
[0043] It should be noted that when the present utility model uses a frequency converter, the frequency converter supplies power to the blower 2 and the frequency converter adjusts the speed of the blower 2. If the present utility model uses potentiometer speed regulation, the potentiometer supplies power to the blower alone.
[0044] In some embodiments, the cooling component of the present utility model includes a cooling pipe 3 disposed in a cooling pipeline 6. Both ends of the cooling pipe 3 extend out of the cooling pipeline 6 and respectively form a cooling inlet 31 and a cooling outlet 32. The cooling inlet 31 and the cooling outlet 32 can be connected to an external energy supply device, and the external energy supply device can supply a cooling medium to the cooling pipe 3. In a specific embodiment, the cooling pipe 3 of the present utility model forms a circulation path with the external energy supply device through the cooling inlet 31 and the cooling outlet 32, so as to enable the cooling to be effectively circulated. In addition, the cooling medium can be selected as a gas or a liquid, such as water or pressurized gas, etc.
[0045] The adjustment device of the present utility model mainly extracts a part of the air in the box body on both sides of the box body through an air extraction structure, and installs the above-mentioned cooling component at the air outlet to cool the air, so as to avoid high-temperature air from harming the surrounding environment or operating personnel.
[0046] Preferably, as a specific embodiment, the cooling pipe 3 of the present utility model can be selected as a coiled pipe to increase its cooling coverage area and improve the cooling efficiency. Specifically, it can be flexibly designed according to actual needs to improve the cooling efficiency on the basis of ensuring stability.
[0047] As a specific embodiment, in actual application, the blowing devices of the blowing ducts on both sides of the glass thickness adjustment box are replaced with the adjustment device of the present utility model, and one is arranged near each end on both sides of each glass thickness adjustment box. The structures of the blowing ducts and the air inlet pipes 7 on both sides of the glass thickness adjustment box are the same, and in practice, they can be selected as stainless steel air pipes 1.
[0048] The utility model adjusts the air volume of the wind according to the thickness and adjusts the speed regulating device 5 according to the glass thickness, so as to control the air flow of the glass thickness adjustment box, and further improve the operation quality of glass thickness control.
[0049] In some embodiments, the adjustment device of the utility model is installed on both sides of the glass thickness adjustment box in a detachable manner, and its setting is relatively flexible and convenient for maintenance.
[0050] For the glass thickness adjustment box of the utility model, after the adjustment device is installed, the air volume and air speed of the air blowing box 8 can be effectively controlled, and further the adjustment accuracy of the glass thickness can be improved.
[0051] As a specific embodiment, for the adjustment device of the utility model for a glass thickness adjustment box, in the air blowing box 8, the fan 2 mainly extracts the air in the air blowing box 8 through the stainless steel pipe 1. Since the temperature in the air blowing box 8 is very high, about 900 °C, the air outlet pipe is made of stainless steel. The port of the air outlet pipe is connected to the straight pipe 41 of the fan 2 through the bell-shaped cylinder 42. During use, the motor speed of the fan 2 is adjusted through the speed regulating device 5. A coiled cooling pipe 3 is arranged in the cooling pipeline 6 of the fan 2. Water flows through the cooling pipe 3 in the area where the hot air enters the cooling pipe 3 after passing through the fan 2, and the temperature is reduced after passing through the cooling pipe 3 and then discharged, so as to avoid the hot air from damaging the surrounding environment or operators. In order to avoid scaling, the cooling water in the cooling pipe 3 can be softened water, and there is always water in the cooling pipe 3 during use to prevent the high temperature from damaging its structure.
[0052] The adjustment device of the utility model is installed at both ends of the glass thickness adjustment box, and the middle part is the air inlet pipe 7. During production, the air inlet pipe 7 blows cold air into the box body 2 to adjust the thickness of the glass plate. A plurality of air inlet pipes 7 are evenly distributed in the width direction of the glass plate to finely adjust the thickness of each area. Since the blowing position and air volume are not fixed, the number of adjustment devices used and the air volume need to be adjusted according to the blowing situation. One or two of them can be turned on, and the air extraction volume can be adjusted separately through the speed regulating device 5. The extracted gas is discharged after the temperature is reduced by the cooling pipe 3, which will not cause harm to the surrounding environment and operators. The air flow and direction in the air blowing box 8 are adjusted by the joint action of two adjustment devices, so that the air blowing box 8 can effectively and accurately adjust the glass thickness, and the amount of air entering the furnace body can be controlled, the atmosphere in the furnace can be improved, and the quality of the whole working condition can be improved.
[0053] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An adjustment device for a glass thickness adjustment box, characterized in that: The invention comprises an exhaust structure, which can be installed on the blowing pipe of the glass thickness adjustment box so as to adjust the air volume in the glass thickness adjustment box. The exhaust structure comprises an exhaust component and a cooling component connected to the exhaust component; wherein: The exhaust assembly comprises a fan (2), the air inlet end of the fan (2) can be connected to the blowing pipe of the glass thickness adjustment box, and the air outlet end is connected to the cooling assembly, and the fan (2) is equipped with a speed regulating device (5), and the speed regulating device (5) can be used to control the speed of the fan; The cooling component comprises a cooling pipe (6), a cooling component is arranged in the cooling pipe (6), and the cooling component can be connected to an external energy supply device.
2. The adjusting device for glass thickness adjusting box according to claim 1, characterized in that: The two exhaust structures include two exhaust structures, which can be respectively installed on the blowing pipes on both sides of the glass thickness adjustment box.
3. The adjusting device for glass thickness adjusting box according to claim 1, characterized in that: The fan (2) is connected to a fan duct (4) at one end away from the cooling component, the fan duct (4) comprising a cylindrical section and a diameter-changing section, the cylindrical section being connected to the fan (2).
4. The adjusting device for glass thickness adjusting box according to claim 1, characterized in that: The fan (2) comprises an axial flow fan or a centrifugal fan.
5. The adjusting device for glass thickness adjusting box according to claim 1, characterized in that: The speed regulating device (5) comprises a frequency converter or a potentiometer.
6. The adjusting device for glass thickness adjusting box according to claim 1, characterized in that: The cooling assembly comprises a cooling pipe (3) arranged in a cooling pipe (6), the two ends of the cooling pipe (3) extending outside the cooling pipe (6) and respectively forming a cooling inlet (31) and a cooling outlet (32), the cooling inlet (31) and the cooling outlet (32) being connectable to an external power supply device, and the external power supply device being able to provide a cooling medium for the cooling pipe (3).
7. The adjusting device for glass thickness adjusting box according to claim 6, characterized in that: At least a portion of the cooling pipe (3) inside the temperature reduction pipeline (6) is a bent pipe.
8. The adjusting device for glass thickness adjusting box according to claim 6, characterized in that: The cooling pipe (3) and the external energy supply device form a circulation path.
9. The adjusting device for glass thickness adjusting box according to claim 1, characterized in that: Each of the exhaust structures can be detachably arranged on the blowing pipe of the glass thickness adjustment box.
10. A glass thickness adjustment box, characterized in that: The glass thickness adjustment box is installed with an adjustment device for a glass thickness adjustment box as described in any one of claims 1-9.