Temperature-adjustable air duct device

Abstract

The application discloses a temperature-adjustable air pipe device, which comprises a heating air pipe, a cooling air pipe is installed at the bottom of the heating air pipe, a second air pipe is fixedly arranged at the air inlet of the cooling air pipe, a first air pipe is fixedly arranged at the air inlet of the heating air pipe, an upper air outlet pipe is fixedly installed at the end of the heating air pipe away from the first air pipe, a lower air outlet pipe is fixedly installed at the end of the cooling air pipe away from the second air pipe, and the lower air outlet pipe and the upper air outlet pipe are fixedly connected with a communication pipe through flanges. When hot air is required by a process, the speed regulating valve on the cooling air pipe corresponding to the branch air pipe is closed, the speed regulating valve on the corresponding heating air pipe is used, the flow rate is detected through a flowmeter, and the power of a heating wire is adjusted to adjust the air volume and the temperature required by the process. When the branch air pipes have different temperature requirements, the proportion of hot air and cold air can be adjusted through the two groups of speed regulating valves to adjust the temperature required by the process.

Description

Technical Field

[0001] This invention relates to the field of glass substrate processing, specifically to a temperature-adjustable air duct device. Background Technology

[0002] Liquid crystal glass substrates are an important component of liquid crystal flat panel displays, serving as a fundamental part of liquid crystal display devices. As a platform, they support the attachment and fabrication of various display-related structures and materials. In applications such as LCD, OLED, microLED, and IC, the glass substrate provides a connection carrier for various circuits and transistors. During the processing of liquid crystal substrate glass, in overflow molding processes, the temperature of the molten glass needs to be adjusted regionally to control its viscosity and flow rate to meet the requirements of the overflow molding process. Sometimes, product switching is necessary due to production demands.

[0003] When switching products, the glass substrate may need to be cooled by auxiliary air ducts during the slow cooling molding process. When encountering uneven glass thickness, the process also needs to be adjusted by auxiliary air ducts. If the glass substrate is not cooled in time, the molding quality of the glass substrate will be reduced. Summary of the Invention

[0004] The purpose of this invention is to provide an adjustable temperature duct device to solve the defects mentioned in the background art.

[0005] To achieve the above objectives, an adjustable temperature duct device is provided, comprising a heating duct, a cooling duct installed at the bottom of the heating duct, a second air pipe fixedly installed at the air inlet of the cooling duct, a first air pipe fixedly installed at the air inlet of the heating duct, an upper air outlet duct fixedly installed at the end of the heating duct away from the first air pipe, and a lower air outlet duct fixedly installed at the end of the cooling duct away from the second air pipe. The ends of the lower air outlet duct and the upper air outlet duct are both fixedly connected to a connecting pipe via flanges. Speed ​​regulating valves are installed on both sets of connecting pipes, and the ends of both sets of connecting pipes are connected to an exhaust duct. A flow meter is fixedly installed on the exhaust duct, and a manifold is fixedly connected to the end of the exhaust duct. A branch duct is fixedly installed on the manifold.

[0006] Preferably, the heating air duct and the cooling air duct are arranged in parallel, and the internal volume of the heating air duct and the cooling air duct are the same. At the same time, the heating air duct and the cooling air duct are connected to the branch air duct through the upper air outlet duct, the lower air outlet duct, the connecting pipe, the exhaust duct, and the manifold, respectively.

[0007] Preferably, two sets of fixing brackets are evenly installed on the heating air duct and the cooling air duct, and the bottom of the fixing bracket is welded to the fixing base. At the same time, the fixing bracket is arranged in a figure-eight shape, and the cross section of the base is an isosceles trapezoid.

[0008] Preferably, positioning rails are fixedly installed on the inner wall of the heating air duct, and four sets of positioning rails are evenly arranged along the circumferential position of the inner wall of the heating air duct. At the same time, positioning grooves are opened on the surface of the positioning rails, and the size of the positioning grooves is adapted to the positioning blocks.

[0009] Preferably, the positioning block is fixedly installed on the outside of the fixing ring, and four sets of positioning blocks are evenly arranged on the outer surface of the fixing ring. The fixing ring is circular, and both sets of fixing rings are fixedly connected to the heating wire.

[0010] Preferably, the heating wires are evenly arranged in five groups, and the five groups of heating wires are fixedly connected by two sets of fixing rings. At the same time, the five groups of heating wires are powered by the power supply inside the power supply box.

[0011] Preferably, four sets of connecting posts are evenly installed between the two sets of fixing rings, and the two sets of fixing rings are fixed by the four sets of diamond-shaped connecting posts. At the same time, the ends of the four sets of connecting posts are fixedly connected to the surface of the power supply box, and the power supply box is screwed into the inside of the sealing cap.

[0012] Preferably, the five sets of heating wires and the two sets of fixing rings are combined to form a heating assembly, which is inserted into the interior of the heating air duct and positioned and installed by a positioning rail and a positioning block. The positioning rail and the positioning block are both designed with a dovetail shape, and the positioning block is inserted into a positioning groove opened on the surface of the positioning rail.

[0013] Preferably, the diameter of the power supply box is equal to the diameter of the fixing ring, and the power supply box is inserted into the inside of the heating air duct. At the same time, the sealing cap on the outside of the power supply box is screwed to the outside of the end of the heating air duct, and a limiting piece is fixedly provided on the outside of the end of the heating air duct. The depth of the sealing cap inserted into the outside of the end of the heating air duct is limited by the annular limiting piece.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention, through the arrangement of five sets of heating wires, can uniformly heat the airflow flowing inside the heating duct, avoiding uneven heating of the airflow; at the same time, when the heating wires inside the heating duct need to be inspected and cleaned, the sealing cap screwed to the end of the heating duct can be removed and pulled outward, allowing the five sets of heating wires to be pulled out of the heating duct; this enables quick positioning and installation between the heating duct and the heating component.

[0016] 2. In this invention, when multiple branch ducts are required to supply cooling air into the furnace, the speed control valve of the corresponding heating duct is closed, and the speed control valve on the corresponding cooling duct is used to adjust the air volume to the required process flow rate via flow meter detection. When the process requires hot air, the speed control valve on the corresponding cooling duct is closed, and the speed control valve on the corresponding heating duct is used to adjust the air volume and temperature to the required process flow rate via flow meter detection and heating wire power adjustment. When the branch ducts have inconsistent temperature requirements, the ratio of hot air to cold air can be adjusted using two sets of speed control valves to achieve the required process temperature, thereby improving the forming quality of the glass substrate. Attached Figure Description

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0018] Figure 1 This is a front view schematic diagram of the structure of the present invention;

[0019] Figure 2 for Figure 1 A bottom view;

[0020] Figure 3 for Figure 1 Top view;

[0021] Figure 4 This is a schematic diagram of the heating assembly structure of the present invention;

[0022] Figure 5 for Figure 4 Side view;

[0023] Figure 6 This is a schematic diagram of the heating wire and its installation structure.

[0024] [Figure Labels]

[0025] 1. First air duct; 2. Second air duct; 3. Heating air duct; 4. Cooling air duct; 5. Fixing frame; 6. Heating component; 61. Limiting plate; 62. Positioning rail; 63. Heating wire; 64. Fixing ring; 65. Positioning block; 66. Connecting column; 67. Sealing cap; 671. Power supply box; 7. Base; 8. Upper air outlet duct; 9. Lower air outlet duct; 10. Connecting pipe; 11. Speed ​​control valve; 12. Exhaust duct; 13. Flow meter; 14. Manifold; 15. Branch air duct. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0027] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0028] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0029] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0030] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0031] Detailed Implementation Method 1: Please refer to... Figure 1-6This invention provides a technical solution: an adjustable temperature air duct device, including a heating air duct 3, a cooling air duct 4 installed at the bottom of the heating air duct 3, and a second air duct 2 fixedly installed at the air inlet of the cooling air duct 4. At the same time, a first air duct 1 is fixedly installed at the air inlet of the heating air duct 3. An upper air outlet duct 8 is fixedly installed at the end of the heating air duct 3 away from the first air duct 1, and a lower air outlet duct 9 is fixedly installed at the end of the cooling air duct 4 away from the second air duct 2. The ends of the lower air outlet duct 9 and the upper air outlet duct 8 are both fixedly connected to a connecting pipe 10 through a flange. At the same time, a speed regulating valve 11 is installed on both sets of connecting pipes 10, and the ends of both sets of connecting pipes 10 are connected to an exhaust pipe 12. A flow meter 13 is fixedly installed on the exhaust pipe 12, and the end of the exhaust pipe 12 is fixedly connected to a manifold 14. At the same time, a branch air duct 15 is fixedly installed on the manifold 14.

[0032] Working Principle: This device allows for wind speed and temperature control. It mainly consists of a heating duct 3, a cooling duct 4, multiple branch ducts 15, a speed control valve 11, a flow meter 13, and a heating assembly 6. Switching between the heating duct 3 and the cooling duct 4 is controlled by the speed control valve 11, which supplies airflow to the multiple branch ducts 15 installed on the furnace. Process personnel can adjust the heating temperature of the heating wire 63 inside the heating duct 3 by adjusting the temperature controller, and then adjust the speed control valve 11 to control the ratio of cold and hot air, thereby fine-tuning the branch ducts 15. The outlet air temperature is 5. This device offers a simple adjustment method and can meet the process requirements for adjusting airflow and temperature in different areas during production. Multiple branch ducts 15 are installed inside the furnace. The main duct consists of two lines: a heating duct 3 and a cooling duct 4, both connected to cooling air. The cooling duct 4 does not have a heating function. A heating wire 63 is installed inside the heating duct 3. The air temperature inside the main duct is adjusted by regulating the temperature controller. This device allows adjustment of the hot air temperature inside the duct by controlling the heating power of the heating wire 63 inside the heating duct 3, via the speed control valve 11. The ratio of hot air to cold air is adjusted to fine-tune the airflow and temperature of each branch duct 15. This duct device has a simple structure and is easy to operate. It can also meet the process requirements for regional adjustment of the glass melt temperature to satisfy the overflow forming process requirements. The working principle of the heating component 6 inside the heating duct 3 is as follows: airflow enters the interior of the heating duct 3 from the first air pipe 1. The interior of the heating duct 3 is evenly filled with five sets of heating wires 63. The setting of five sets of heating wires 63 can evenly heat the airflow flowing inside the heating duct 3, avoiding uneven heating of the airflow. When the heating wires 63 inside the heating duct 3 need to be inspected and cleaned, the sealing caps 67 screwed to the end of the heating duct 3 are removed and pulled outwards, so that the five sets of heating wires 63 are pulled out from the inside of the heating duct 3; the five sets of heating wires 63 are evenly installed with two sets of fixing rings 64, and the positioning blocks 65 on the two sets of fixing rings 64 are pull-out structures inside the positioning track 62 to avoid the heating wires 63 from contacting the inner wall of the heating duct 3; this can realize the quick positioning and installation work between the heating duct 3 and the heating component 6.

[0033] Specific Implementation Method 2: This implementation method is a further limitation of Specific Implementation Method 1. The heating air duct 3 and the cooling air duct 4 are arranged in parallel, and the internal volume of the heating air duct 3 and the cooling air duct 4 is the same. At the same time, the heating air duct 3 and the cooling air duct 4 are connected to the branch air duct 15 through the upper air outlet duct 8, the lower air outlet duct 9, the connecting pipe 10, the exhaust pipe 12, and the manifold duct 14, respectively.

[0034] Two sets of fixing brackets 5 are evenly installed on the heating air duct 3 and the cooling air duct 4, and the bottom of the fixing bracket 5 is welded with a fixing base 7. The fixing bracket 5 is set in a figure-eight shape, and the cross section of the base 7 is set in an isosceles trapezoid.

[0035] Positioning rails 62 are fixedly installed on the inner wall of the heating air duct 3, and four sets of positioning rails 62 are evenly arranged along the circumferential position of the inner wall of the heating air duct 3. At the same time, positioning grooves are opened on the surface of the positioning rails 62, and the positioning grooves are adapted to the size of the positioning block 65.

[0036] Specific Implementation Method 3: This implementation method is a further limitation of Specific Implementation Method 2. The positioning block 65 is fixedly installed on the outside of the fixing ring 64, and four sets of positioning blocks 65 are evenly arranged on the outer surface of the fixing ring 64. At the same time, the fixing ring 64 is circular, and both sets of fixing rings 64 are fixedly connected to the heating wire 63.

[0037] Five groups of heating wires 63 are evenly arranged, and the five groups of heating wires 63 are fixedly connected by two sets of fixing rings 64. At the same time, the five groups of heating wires 63 are powered by the power supply inside the power supply box 671.

[0038] Four sets of connecting posts 66 are evenly installed between the two sets of fixing rings 64, and the two sets of fixing rings 64 are fixed by the four sets of diamond-shaped connecting posts 66. At the same time, the ends of the four sets of connecting posts 66 are fixedly connected to the surface of the power supply box 671, and the power supply box 671 is screwed into the inside of the sealing cap 67.

[0039] Specific Implementation Method 4: This implementation method is a further limitation of Specific Implementation Method 2. Five sets of heating wires 63 and two sets of fixing rings 64 are combined together to form a heating component 6. The heating component 6 is inserted into the interior of the heating air duct 3 and is positioned and installed by the positioning rail 62 and the positioning block 65. At the same time, the cross-section of the positioning rail 62 and the positioning block 65 are both set in a dovetail shape. The positioning block 65 is inserted into the positioning groove opened on the surface of the positioning rail 62.

[0040] The diameter of the power supply box 671 is equal to the diameter of the fixing ring 64, and the power supply box 671 is inserted into the interior of the heating air duct 3. At the same time, the sealing cap 67 on the outside of the power supply box 671 is screwed and fixed to the outside of the end of the heating air duct 3. A limiting piece 61 is fixedly provided on the outside of the end of the heating air duct 3. The depth of the sealing cap 67 inserted into the outside of the end of the heating air duct 3 is limited by the annular limiting piece 61.

[0041] like Figure 1-6As shown: When multiple branch air ducts 15 are required to supply cooling air into the furnace, the speed control valve 11 of the heating air duct 3 corresponding to the branch air duct 15 is closed, and the speed control valve 11 on the corresponding cooling air duct 4 is used to adjust the air volume to the required process volume by detecting the flow meter 13; when the process requires hot air, the speed control valve 11 on the cooling air duct 4 corresponding to the branch air duct is closed, and the speed control valve 11 on the corresponding heating air duct 3 is used to adjust the air volume and temperature to the required process volume by detecting the flow meter 13 and adjusting the power of the heating wire 63; when the temperature requirements of the branch air ducts 15 are inconsistent, the ratio of hot air to cold air can be adjusted by using two sets of speed control valves 11 to adjust the temperature to the required process volume; thus improving the forming quality of the glass substrate.

[0042] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0043] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A temperature-adjustable air duct device, comprising a heating air duct (3), characterized in that, Cooling air duct (4) is installed at the bottom of the heating air duct (3), and a second air duct (2) is fixedly installed at the air inlet of the cooling air duct (4). At the same time, a first air duct (1) is fixedly installed at the air inlet of the heating air duct (3). An upper air outlet duct (8) is fixedly installed at the end of the heating air duct (3) away from the first air duct (1). A lower air outlet duct (9) is fixedly installed at the end of the cooling air duct (4) away from the second air duct (2). The ends of the lower air outlet duct (9) and the upper air outlet duct (8) are both fixedly connected to a connecting pipe (10) through a flange. Speed ​​regulating valves (11) are installed on both sets of connecting pipes (10). The ends of both sets of connecting pipes (10) are connected to the exhaust pipe (12). A flow meter (13) is fixedly installed on the exhaust pipe (12). The end of the exhaust pipe (12) is fixedly connected to a manifold (14). A branch air duct (15) is fixedly installed on the manifold (14). Positioning rails (62) are fixedly installed on the inner wall of the heating air duct (3), and four sets of positioning rails (62) are evenly arranged along the circumferential position of the inner wall of the heating air duct (3). At the same time, positioning grooves are opened on the surface of the positioning rails (62), and the positioning grooves are adapted to the size of the positioning blocks (65). The positioning blocks (65) are fixedly installed on the outside of the fixing rings (64), and four sets of positioning blocks (65) are evenly arranged on the outer surface of the fixing rings (64). At the same time, the fixing rings (64) are circular, and both sets of fixing rings (64) are fixedly connected to the heating wires (63). The heating wires (63) are evenly arranged in five sets, and the five sets of heating wires (63) are fixedly connected to each other through two sets of fixing rings (64). At the same time, the five sets of heating wires (63) are powered by the power supply inside the power supply box (671).

2. The adjustable temperature duct device according to claim 1, characterized in that, The heating air duct (3) and cooling air duct (4) are arranged in parallel, and the internal volume of the heating air duct (3) and cooling air duct (4) is the same. At the same time, the heating air duct (3) and cooling air duct (4) are connected to the branch air duct (15) through the upper air outlet duct (8), the lower air outlet duct (9), the connecting pipe (10), the exhaust duct (12), and the manifold (14), respectively.

3. The adjustable temperature duct device according to claim 1, characterized in that, Two sets of fixing brackets (5) are evenly installed on the heating air duct (3) and cooling air duct (4), and the bottom of the fixing bracket (5) is welded with a fixing base (7). The fixing bracket (5) is set in the shape of "8", and the cross section of the base (7) is set in the shape of an isosceles trapezoid.

4. The adjustable temperature duct device according to claim 1, characterized in that, Four sets of connecting posts (66) are evenly installed between the two sets of fixing rings (64), and the two sets of fixing rings (64) are fixed by the four sets of diamond-shaped connecting posts (66). At the same time, the ends of the four sets of connecting posts (66) are fixedly connected to the surface of the power supply box (671), and the power supply box (671) is screwed into the inside of the sealing cap (67).

5. The adjustable temperature duct device according to claim 1, characterized in that, The five sets of heating wires (63) and two sets of fixing rings (64) are combined to form a heating assembly (6). The heating assembly (6) is inserted into the interior of the heating air duct (3) and positioned and installed by the positioning rail (62) and the positioning block (65). The cross-section of the positioning rail (62) and the positioning block (65) are both dovetail shaped. The positioning block (65) is inserted into the positioning groove opened on the surface of the positioning rail (62).

6. The adjustable temperature duct device according to claim 4, characterized in that, The diameter of the power supply box (671) is equal to the diameter of the fixing ring (64), and the power supply box (671) is inserted into the interior of the heating air pipe (3). At the same time, the sealing cap (67) on the outside of the power supply box (671) is screwed and fixed to the outside of the end of the heating air pipe (3), and a limiting piece (61) is fixedly provided on the outside of the end of the heating air pipe (3). The depth of the sealing cap (67) inserted into the outside of the end of the heating air pipe (3) is limited by the annular limiting piece (61).

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