Substrate glass thickness fine adjustment apparatus and method

Abstract

The present application relates to flat glass manufacturing technology field, specifically to a kind of substrate glass thickness fine adjustment device and method.The substrate glass thickness fine adjustment device, including soaking box, one side opening accommodating cavity is provided in soaking box, multiple temperature regulating units are arranged in accommodating cavity along the length direction of accommodating cavity, and form cooperation with accommodating cavity, temperature regulating unit is provided with uniform temperature cavity;Each temperature regulating unit is correspondingly provided with air inlet system and air return system, one end of air inlet system is inserted in the inside of uniform temperature cavity, so that air inlet system is communicated with uniform temperature cavity, one end of air return system is inserted in temperature regulating unit, and communicated with uniform temperature cavity;Air inlet system includes cold air flow-through area and hot air flow-through area, for inputting cold air and hot air.The present application can finely adjust the thickness of substrate glass;At the same time, according to actual use demand, cooling or heating wind can be selected to act on corresponding area, to realize cooling and heating two functions.

Description

Technical Field

[0001] This invention belongs to the field of flat glass manufacturing technology, and specifically relates to a device and method for finely adjusting the thickness of a substrate glass. Background Technology

[0002] Substrate glass production methods include float glass, overflow down-draw glass, and slot down-draw glass. Regardless of the method, high uniformity of substrate glass thickness is required. In the overflow down-draw method, the molten glass converges at the tip of the overflow brick to form a single glass sheet. Glass sheets produced in this way do not come into contact with any equipment, and the glass surface remains free of contamination. To achieve precise thickness adjustment during the overflow down-draw process, the glass sheet must retain a certain degree of viscoelasticity. This requires temperature control to finely adjust the thickness, necessitating a thickness adjustment device within this adjustable range.

[0003] The current adjustment method involves installing thickness adjustment devices on both sides of a viscoelastic glass plate. Different cooling air volumes are blown through local ducts of these devices to alter the local temperature and achieve precise thickness adjustment at specific locations. The current thickness adjustment device structure consists of a number of air inlets inside a heat exchange chamber. Adjusting the cooling airflow through these inlets changes the surface temperature of the corresponding location within the heat exchange chamber, thus achieving the desired thickness adjustment at a specific point on the glass plate. However, in existing technology, the front end of the air inlet is a certain distance from the surface of the heat exchange chamber. When air from a specific inlet enters the thickness adjustment device, the cooling air acts on the heat exchange chamber within a certain range from the inlet, affecting adjacent areas. Furthermore, existing thickness adjustment devices lack return air outlets, allowing the air entering through the inlets to escape into the furnace, causing changes in furnace pressure and consequently altering the airflow, thus impacting the glass's properties.

[0004] Chinese invention patent CN108911483 A, published on November 30, 2018, discloses a device for rapid and precise adjustment of glass sheet thickness using an overflow-pull molding method. The device includes a heat exchanger with several independent cooling air channels evenly distributed within it. The starting and ending points of these cooling air channels are located on the same end face of the heat exchanger, forming an air inlet and an air outlet. When cooling air enters the cooling air channels of the heat exchanger through the air inlet, the molten high-temperature glass sheet rapidly exchanges heat with the cooling air through the heat exchanger and is then discharged through the air outlet, without remaining or circulating within the furnace, thus achieving rapid cooling and controlling the glass sheet thickness. However, in this solution, the air inlet can only receive cooling air for cooling purposes and cannot perform a heating function; it only has a single cooling function. Summary of the Invention

[0005] The purpose of this invention is to provide a device for finely adjusting the thickness of a substrate glass, so as to solve the problem that existing devices for rapid and fine adjustment of glass thickness cannot achieve both cooling and heating functions as needed.

[0006] To address the aforementioned problems, this invention proposes a device for finely adjusting the thickness of a substrate glass. The technical solution employed is as follows:

[0007] A device for finely adjusting the thickness of a substrate glass includes a heat exchange chamber. The heat exchange chamber has a receiving cavity with one side opening. Multiple temperature regulating units are arranged along the length of the receiving cavity and cooperate with it. Each temperature regulating unit contains a temperature equalization chamber. Each temperature regulating unit is equipped with an air inlet system and a return air system. One end of the air inlet system is inserted into the interior of the temperature equalization chamber, allowing the air inlet system to communicate with the temperature equalization chamber. One end of the return air system is inserted into the temperature regulating unit and communicates with the temperature equalization chamber. The air inlet system includes a cold air circulation zone and a hot air circulation zone for inputting cold and hot air.

[0008] Furthermore, the air intake system includes an air intake pipe, and the air return system includes a return pipe. One end of the return pipe is inserted into the side of the temperature regulating unit corresponding to the opening side of the receiving cavity, and is connected to the temperature equalization cavity. The air intake pipe passes through the return pipe along the axial direction of the return pipe and is inserted inside the temperature equalization cavity. A first partition is provided inside the air intake pipe to divide the air intake pipe into a cold air circulation zone and a hot air circulation zone. The outer wall of the air intake pipe and the inner wall of the return pipe form a return air circulation zone.

[0009] Furthermore, the air intake system also includes an air intake rectangular tube and an air inlet located at one end of the air intake rectangular tube. The air intake rectangular tube is located at the end of the air intake circular tube away from the heat exchange box and is simultaneously connected to each air intake circular tube. A second partition is provided inside the air intake rectangular tube, dividing the air intake rectangular tube into a cold air intake area and a hot air intake area. The air inlet includes a cold air inlet and a hot air inlet. The cold air inlet and the cold air intake area are connected to the cold air circulation area, and the hot air inlet and the hot air intake area are connected to the hot air circulation area.

[0010] Furthermore, the rectangular air inlet tube is provided with a first through hole that connects to the circular air inlet tube. The first through hole corresponds to the circular air inlet tube. The second partition divides the first through hole into a cold air through hole and a hot air through hole. The cold air inlet, cold air inlet area, and cold air through hole are connected to the cold air circulation area. The hot air inlet, hot air inlet area, and hot air through hole are connected to the hot air circulation area.

[0011] Furthermore, the air intake system also includes a cold air flow meter and a hot air flow meter. The cold air flow meter is installed at the connection between the cold air inlet area and the cold air circulation area to control the selection of cold air and the flow rate of the incoming cold air. The hot air flow meter is installed at the connection between the hot air inlet area and the hot air circulation area to control the selection of hot air and the flow rate of the incoming hot air.

[0012] Furthermore, the return air system also includes a return air rectangular duct and a return air inlet disposed at one end of the return air rectangular duct. The return air rectangular duct is disposed at the end of the return air circular duct away from the heat exchange box and is simultaneously connected to the return air flow area in each return air circular duct.

[0013] Furthermore, a second through hole is provided on the side of the return air pipe away from the heat exchange box. The second through hole is provided in a one-to-one correspondence with the return air pipe. The inlet air pipe and the return air pipe are sealed and connected at the ends near the inlet rectangular pipe. The return air rectangular pipe is connected to the second through hole through a connecting bend, thereby realizing the connection between the return air inlet and the return air circulation area.

[0014] Furthermore, the heat exchange chamber is in the shape of a right trapezoid, with the front inclined surface of the heat exchange chamber positioned close to the glass plate. The angle between the front inclined surface and the upper surface of the heat exchange chamber is 90-160°, and the angle between the front inclined surface and the lower surface of the heat exchange chamber is 20-90°.

[0015] Furthermore, the shape of the receiving cavity, temperature regulating unit, and temperature equalization cavity are all right-angled trapezoids, and the heat equalization box, receiving cavity, multiple temperature regulating units, and temperature equalization cavity are sequentially arranged to cooperate.

[0016] Beneficial Effects: This invention is an improved invention. It features a uniform temperature chamber with multiple temperature control units within its containment cavity, forming a cohesive unit. Each temperature control unit is equipped with an air inlet system and a return air system. When fine-tuning of the glass plate's thickness is required in a localized area, the number of air inlet systems and temperature control units in the corresponding area is adjusted. The air inlet system acts on the temperature control units, which, through direct heat conduction with the uniform temperature chamber, change the temperature of the corresponding location within the chamber, thus finely adjusting the thickness of the substrate glass. Furthermore, the air from the air inlet system, after entering the temperature control unit, can be returned to the outside of the furnace via the return air system and discharged uniformly. The air inlet system includes a cold air circulation zone and a hot air circulation zone for inputting cold and hot air, allowing for the selection of either cooling or heating air to act on the corresponding area according to actual usage needs, achieving both cooling and heating functions.

[0017] The substrate glass thickness fine adjustment device of this invention is installed inside the forming equipment, located on both sides below the overflow structure and at a certain distance from the glass plate. In actual production, it can more accurately apply temperature adjustment to specific locations requiring individual adjustment, and more precisely apply hot or cold air to specific locations on the glass plate, thereby achieving precise thickness adjustment at a fixed point. Simultaneously, the air from the air inlet system, after entering the temperature adjustment unit, can be returned to the outside of the furnace via the return air system, preventing air from escaping from the temperature equalization chamber and thus altering the furnace pressure and airflow. Furthermore, the air inlet system includes a cold air circulation zone and a hot air circulation zone, allowing for the selection of cooling or heating air to act on corresponding areas according to actual needs, achieving both cooling and heating simultaneously. This increases the process adjustment margin and range, meeting diverse production requirements. This device not only allows for more precise glass thickness adjustment when using the temperature equalization chamber during production, but also ensures stable furnace pressure.

[0018] The present invention also provides a method for finely adjusting the thickness of a substrate glass, based on the above-mentioned device for finely adjusting the thickness of a substrate glass, comprising the following steps:

[0019] S1, the heat exchange chamber is placed on both sides of the glass plate;

[0020] S2, according to the fine adjustment requirements of the substrate glass thickness, determine the number of temperature regulation units, input cold air or hot air into the cold air circulation area or hot air circulation area of ​​the air intake system corresponding to the temperature regulation unit, and flow into the temperature equalization chamber in the temperature regulation unit.

[0021] S3, cold or hot air is applied to the temperature equalization chamber through the temperature regulation unit, and then to the corresponding position of the glass plate to achieve fine adjustment of the glass plate thickness; at the same time, the cold or hot air entering the temperature regulation unit is returned and discharged from the return air system.

[0022] The air intake system includes an air intake pipe, and the air return system includes an air return pipe. One end of the air return pipe is inserted into the side of the temperature regulating unit corresponding to the opening side of the receiving cavity, and is connected to the temperature equalization cavity. The air intake pipe passes through the air return pipe along the axial direction and is inserted inside the temperature equalization cavity. A first partition is provided inside the air intake pipe, dividing the air intake pipe into a cold air circulation zone and a hot air circulation zone. The outer wall of the air intake pipe and the inner wall of the air return pipe form a return air circulation zone, which can simply and effectively realize the setting of the water intake system and the water return system, and realize the input of cold water and hot water.

[0023] The air intake system also includes an air intake rectangular tube and an air inlet located at one end of the air intake rectangular tube. The air intake rectangular tube is located at the end of the air intake circular tube away from the heat exchange box and is simultaneously connected to each air intake circular tube. A second partition is provided inside the air intake rectangular tube, dividing the air intake rectangular tube into a cold air inlet area and a hot air inlet area. The air inlet includes a cold air inlet and a hot air inlet. The cold air inlet and the cold air inlet area are connected to the cold air circulation area, and the hot air inlet and the hot air inlet area are connected to the hot air circulation area, which facilitates the unified control and input of the air intake volume of the air intake system and improves the adjustment accuracy.

[0024] The rectangular air inlet tube is provided with a first through hole that connects to the circular air inlet tube. The first through hole corresponds to the circular air inlet tube. The second partition divides the first through hole into a cold air through hole and a hot air through hole. The cold air inlet, cold air inlet area, and cold air through hole are connected to the cold air circulation area. The hot air inlet, hot air inlet area, and hot air through hole are connected to the hot air circulation area, which facilitates the connection input of cold air and hot air. The structure is simple and the operation is convenient.

[0025] The air intake system also includes a cold air flow meter and a hot air flow meter. The cold air flow meter is installed at the connection between the cold air inlet area and the cold air circulation area to control the selection of cold air and the flow rate of the incoming cold air. The hot air flow meter is installed at the connection between the hot air inlet area and the hot air circulation area to control the selection of hot air and the flow rate of the incoming hot air, thereby enabling the selection of cold or hot air and achieving precise control of the flow rate of the incoming cold or hot air, further improving the accuracy of substrate thickness adjustment.

[0026] The return air system also includes a return air rectangular duct and a return air inlet located at one end of the return air rectangular duct. The return air rectangular duct is located at the end of the return air circular duct away from the heat exchange box and is simultaneously connected to the return air flow area in each return air circular duct, which facilitates the simultaneous output of return air in the return air circular duct, making operation convenient and efficient.

[0027] The heat exchange chamber is in the shape of a right trapezoid. The front slope of the heat exchange chamber is located close to the substrate glass. The angle between the front slope and the upper surface of the heat exchange chamber is 90-160°, and the angle between the front slope and the lower surface of the heat exchange chamber is 20-90°, which can further improve the adjustment accuracy.

[0028] The cavity, temperature control unit, and temperature equalization cavity are all right-angled trapezoids. The heat equalization chamber, the cavity, multiple temperature control units, and the temperature equalization cavity are arranged in sequence to form a cohesive unit. The multiple temperature control units are in direct contact with the inner surface of the heat equalization chamber. The air from the air intake system blows directly into the temperature control unit, so that the air from the air intake system does not affect the area next to the heat equalization chamber. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the installation structure of the adjustment device in Embodiment 1 of the substrate glass thickness fine adjustment device of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the adjustment device in Embodiment 1 of the substrate glass fine adjustment device of the present invention;

[0031] Figure 3 This is a schematic diagram of the water inlet system and water return system in Embodiment 2 of the substrate glass thickness fine adjustment device of the present invention;

[0032] Figure 4 This is a perspective view of the adjustment device in Embodiment 2 of the substrate glass thickness fine adjustment device of the present invention;

[0033] Figure 5 This is a schematic diagram of the air inlet rectangular tube in Embodiment 2 of the substrate glass thickness fine adjustment device of the present invention;

[0034] Figure 6 This is a schematic diagram of the operation of the substrate glass thickness fine adjustment device in Embodiment 1 of the substrate glass thickness fine adjustment method of the present invention;

[0035] Figure 7 This is a schematic diagram of the operation of the cold air flow meter and the hot air flow meter in Embodiment 1 of the method for fine adjustment of substrate glass thickness of the present invention;

[0036] In the diagram, 1. Heat exchanger box; 2. Temperature control unit; 21. Front slope of temperature control unit; 22. Rear end face of temperature control unit; 3. Return air system; 31. Return air duct; 32. Connecting bend; 4. Air inlet system; 41. Air inlet duct; 42. Baffle plate; 43. Cold air flow meter; 44. Hot air flow meter; 5. Air inlet rectangular duct; 6. Return air rectangular duct; 7. Glass plate; 8. Connecting through hole; 9. Hot air inlet; 10. Cold air inlet; 11. Return air outlet; 12. First through hole. Detailed Implementation

[0037] As cited in the background art, existing glass plate thickness rapid and fine adjustment devices cannot simultaneously achieve both cooling and heating functions as needed. Therefore, this invention proposes a substrate glass thickness fine adjustment device, including a heat exchange chamber for finely adjusting the glass thickness on the substrate glass; the heat exchange chamber has a receiving cavity with one side opening, and multiple temperature regulating units are arranged along the length of the receiving cavity and cooperate with the receiving cavity to achieve heat conduction between the multiple temperature regulating units and the heat exchange chamber; each temperature regulating unit has a temperature equalization chamber for circulating hot or cold air; each temperature regulating unit is provided with an air inlet system and a return air system, one end of the air inlet system is inserted into the inside of the temperature equalization chamber, so that the air inlet system is connected to the temperature equalization chamber, for inputting cold or hot air; one end of the return air system is inserted into the temperature regulating unit and is connected to the temperature equalization chamber, for outputting cold or hot air; the air inlet system includes a cold air circulation area and a hot air circulation area for inputting cold and hot air. The substrate glass thickness fine adjustment device of the present invention can finely adjust the thickness of the substrate glass; at the same time, it can select cooling or heating air to act on the corresponding area according to actual use needs, so as to achieve both cooling and heating functions.

[0038] Specific embodiment 1 of the substrate glass thickness fine adjustment device of the present invention:

[0039] In this embodiment, as Figure 1 and Figure 2 As shown, the substrate glass thickness fine adjustment device includes a heat exchange chamber 1, which has a receiving cavity with one side opening. Multiple temperature regulating units 2 are arranged along the length of the receiving cavity and cooperate with it. Each temperature regulating unit 2 has a heat exchange chamber. Each temperature regulating unit 2 is equipped with an air inlet system 4 and a return air system 3. One end of the air inlet system 4 is inserted into the heat exchange chamber, allowing it to communicate with the heat exchange chamber. One end of the return air system 3 is inserted into the temperature regulating unit 2 and communicates with the heat exchange chamber. The air inlet system 4 includes a cold air circulation area and a hot air circulation area for inputting cold and hot air, wherein the temperature range of the hot air is 100-500℃ and the temperature range of the cold air is 18-25℃.

[0040] In this embodiment, the air intake system 4 includes an air intake pipe 41, and the air return system 3 includes an air return pipe 31. One end of the air return pipe 31 is inserted into the side of the temperature regulating unit 2 corresponding to the opening side of the receiving cavity, and is connected to the temperature equalization cavity. The air intake pipe 41 passes through the air return pipe 31 along the axial direction and is inserted into the interior of the temperature equalization cavity. The distance between the end face of the insertion end of the air intake pipe 41 and the inner wall surface of the corresponding temperature regulating unit 2 is 5-20mm. A first partition is provided inside the air intake pipe 41 to divide the air intake pipe 41 into a cold air circulation area and a hot air circulation area. The outer wall of the air intake pipe 41 and the inner wall of the air return pipe 31 form a return air circulation area. Specifically, a connecting through hole 8 is provided on the side of the temperature regulating unit 2 corresponding to the opening side of the receiving cavity. The return air pipe 31 is installed on the connecting through hole 8 by welding, and the front end of the return air pipe 31 is set as a front through hole, which is connected to the temperature equalization cavity, so that the regulating air entering the inner cavity of the temperature regulating unit 2 can enter the return air system 3 through the front through hole of the return air pipe 31.

[0041] The vapor chamber 1 is made of a material with good thermal conductivity, such as silicon carbide, silicon nitride, or metal. This material is heat-resistant and not easily damaged or broken. The vapor chamber 1 is a right-angled trapezoid, with its front inclined surface positioned close to the glass plate 7. The angle between the front inclined surface and the upper surface of the vapor chamber 1 is 120°, and the angle between the front inclined surface and the lower surface of the vapor chamber 1 is 60°. The temperature control unit 2 is also made of a material with good thermal conductivity, such as silicon carbide, silicon nitride, or metal. This material is heat-resistant and not easily damaged or broken. The temperature control unit 2 is a shell structure with a certain thickness. The outer surface of the temperature control unit 2 has the same shape as the inner surface of the vapor chamber 1, and its rear end is a vertical plane. Specifically, the receiving cavity, temperature regulating unit 2, and temperature equalization cavity are all right-angled trapezoids, and the heat equalization box 1, the receiving cavity, multiple temperature regulating units 2, and the temperature equalization cavity are sequentially fitted together, so that hot or cold air is applied evenly and precisely to the glass plate 7. That is, in use, the front inclined surface 21 of the temperature regulating unit fits with the inclined side wall of the receiving cavity of the corresponding heat equalization box 1, and the rear end face 22 of the temperature regulating unit has a connecting through hole 8 for installing the return air pipe 31. The first partition is a partition plate 42; multiple temperature regulating units 2 are set in the receiving cavity to form a complete fit, and the air inlet pipe 41 and the return air pipe 31 are equally spaced along the length of the heat equalization box 1.

[0042] In other embodiments, the air intake system 4 includes an air intake pipe 41, which is directly inserted into the temperature equalization chamber from the side of the temperature regulating unit 2 corresponding to the opening side of the receiving cavity; the return air system 3 includes two return air pipes 31, which are arranged on both sides of the air intake pipe 41, and one end of the return air pipe 31 is inserted into the side of the temperature regulating unit 2 corresponding to the opening side of the receiving cavity, and communicates with the temperature equalization chamber.

[0043] In other embodiments, the air inlet pipe 41 and the air return pipe 31 may be arranged at unequal intervals along the length of the heat exchange box 1.

[0044] In other embodiments, the number of temperature regulating units 2 can be adjusted according to the thickness of the substrate glass, so that multiple temperature regulating units 2 are arranged in the receiving cavity to form an incomplete fit.

[0045] In other embodiments, the heat exchange chamber 1 is in the shape of a right trapezoid, with the front inclined surface of the heat exchange chamber 1 located close to the substrate glass. The angle between the front inclined surface and the upper end surface of the heat exchange chamber 1 is 90°, and the angle between the front inclined surface and the lower end surface of the heat exchange chamber 1 is 90°.

[0046] In other embodiments, the heat exchange chamber 1 is in the shape of a right trapezoid, with the front inclined surface of the heat exchange chamber 1 located close to the substrate glass. The angle between the front inclined surface and the upper end surface of the heat exchange chamber 1 is 160°, and the angle between the front inclined surface and the lower end surface of the heat exchange chamber 1 is 20°.

[0047] In other embodiments, a connection hole is provided on the side of the temperature regulating unit 2 corresponding to the opening side of the receiving cavity, and the return air pipe 31 is installed on the connection hole by means of threaded connection and communicates with the temperature equalization cavity.

[0048] Specific embodiment 2 of the substrate glass thickness fine adjustment device of the present invention:

[0049] Based on the above-described technical concept of the present invention, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0050] In this embodiment, as Figure 3 , Figure 4 and Figure 5As shown, the air intake system 4 also includes an air intake rectangular tube 5 and an air inlet located at one end of the air intake rectangular tube 5. The air intake rectangular tube 5 is located at the end of the air intake circular tube 41 away from the heat exchange box 1, and is connected to each air intake circular tube 41. The material of the air intake rectangular tube 5 is a metal material, which should have high temperature resistance and corrosion resistance. A second partition is provided inside the air intake rectangular tube 5 to divide the air intake rectangular tube 5 into a cold air intake area and a hot air intake area. The air inlet includes a cold air inlet 10 and a hot air inlet 9. The cold air inlet 10 and the cold air intake area are connected to the cold air circulation area, and the hot air inlet 9 and the hot air intake area are connected to the hot air circulation area.

[0051] Specifically, the air inlet rectangular duct 5 is provided with a first through hole 12 connected to the air inlet circular duct 41. The first through hole 12 is provided one-to-one with the air inlet circular duct 41. The second partition divides the first through hole 12 into a cold air through hole and a hot air through hole. The cold air inlet 10, the cold air inlet area, the cold air through hole and the cold air circulation area are connected. The hot air inlet 9, the hot air inlet area, the hot air through hole and the hot air circulation area are connected. In use, cold air is input from the cold air inlet 10 and enters the cold air inlet area in the air inlet rectangular duct 5. The cold air flows out from the cold air through hole and enters the cold air circulation area, and then flows into the temperature equalization chamber of the temperature regulating unit 2. Hot air is input from the hot air inlet 9 and enters the hot air inlet area in the return air rectangular duct 6. The hot air flows out from the hot air through hole and enters the hot air circulation area, and then flows into the temperature equalization chamber of the temperature regulating unit 2.

[0052] In other embodiments, the air inlet rectangular tube 5 is provided with a through hole corresponding to the air inlet area. The through hole corresponding to the cold air inlet area is connected to the cold air circulation area through a conduit, and the through hole corresponding to the hot air inlet area is connected to the hot air circulation area through a conduit.

[0053] Specific embodiment 3 of the substrate glass thickness fine adjustment device of the present invention:

[0054] Based on the above-described technical concept of the present invention, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0055] In this embodiment, as Figure 3 As shown, the air intake system 4 also includes a cold air flow meter 43 and a hot air flow meter 44. The cold air flow meter 43 is located at the connection between the cold air inlet area and the cold air circulation area, and is used to control the selection of cold air and the flow rate of the incoming cold air. The hot air flow meter 44 is located at the connection between the hot air inlet area and the hot air circulation area, and is used to control the selection of hot air and the flow rate of the incoming hot air, so as to realize the selection of cold air or hot air and to achieve precise control of the flow rate of the incoming cold air or hot air, thereby further improving the accuracy of substrate thickness adjustment.

[0056] Specific embodiment 4 of the substrate glass thickness fine adjustment device of the present invention:

[0057] Based on the above-described technical concept of the present invention, or based on the specific embodiments of the present invention described above, another embodiment is provided below.

[0058] In this embodiment, as Figure 3 , Figure 4 As shown, the return air system 3 also includes a return air rectangular duct 6 and a return air inlet 11 located at one end of the return air rectangular duct 6. The return air rectangular duct 6 is located at the end of the return air circular duct 31 away from the heat exchanger 1, and is simultaneously connected to the return air circulation area in each return air circular duct 31. The return air rectangular duct 6 is made of metal and should have high temperature resistance and corrosion resistance. A second through hole is provided on the side of the end of the return air circular duct 31 away from the heat exchanger 1. The second through hole is provided one-to-one with the return air circular duct 31, and the inlet circular duct 41 is sealed to the end of the return air circular duct 31 near the inlet rectangular duct 5. The return air rectangular duct 6 is connected to the second through hole through a connecting bend 32, thereby realizing the connection between the return air inlet 11 and the return air circulation area. Specifically, a sealing through hole is reserved on the end face of the return air circular duct 31 near the inlet rectangular duct 5. The inlet circular duct 41 passes through the return air circular duct 31 through this through hole and extends into the interior of the temperature control unit 2. Before installation, the difference between the inner diameter of the sealing through hole on the return air pipe 31 and the outer diameter of the air inlet pipe 41 is 0.1-0.5mm, that is, a 0.1-0.5mm installation gap is reserved. After installation, the sealing through hole is sealed by welding to achieve a sealed connection between the air inlet pipe 41 and the return air pipe 31.

[0059] Specific embodiment 1 of the method for fine adjustment of substrate glass thickness of the present invention:

[0060] In this embodiment, as Figure 6 and Figure 7 As shown, based on the above-mentioned substrate glass thickness fine adjustment device, the substrate glass thickness fine adjustment method includes the following steps:

[0061] First, the heat exchange chamber 1 is placed on both sides of the glass plate 7;

[0062] Secondly, based on the need for fine adjustment of the substrate glass thickness, the number of temperature control units 2 is determined, and cold or hot air is input into the cold air circulation area or hot air circulation area of ​​the air intake system 4 corresponding to the temperature control unit 2, and flows into the temperature equalization chamber inside the temperature control unit 2.

[0063] Finally, cold or hot air is applied to the heat exchange chamber 1 through the temperature regulation unit 2, and then to the corresponding position of the glass plate 7 to achieve fine adjustment of the thickness of the glass plate 7; at the same time, the cold or hot air entering the temperature regulation unit 2 is returned and discharged from the return air system 3.

[0064] In use, the heat exchange chamber 1 of the substrate glass thickness fine-tuning device can be a single-section structure or a three-section or multi-section spliced ​​structure. The airflow integration structure of the heat exchange chamber 1 is arranged in pairs and symmetrically installed at certain positions on both sides below the overflow brick. By adjusting the air volume of the air inlet system 4, the local temperature of the glass plate under the overflow brick is changed to achieve the purpose of fine-tuning the local glass plate thickness.

[0065] Specifically, the method for finely adjusting the thickness of the substrate glass includes the following steps:

[0066] First, the heat exchange chamber 1 is placed on both sides of the glass plate 7;

[0067] Secondly, based on the need for fine adjustment of the substrate glass thickness, the number of temperature control units 2 is determined. Cold air is input from the cold air inlet 10 and enters the cold air inlet area in the return air rectangular tube 6. The cold air flows out from the cold air through hole and enters the cold air circulation area, and then flows into the temperature equalization chamber of the temperature control unit 2. Alternatively, hot air is input from the hot air inlet 9 and enters the hot air inlet area in the return air rectangular tube 6. The hot air flows out from the hot air through hole and enters the hot air circulation area, and then flows into the temperature equalization chamber of the temperature control unit 2.

[0068] Finally, cold or hot air is applied to the heat exchange chamber 1 through the temperature regulation unit 2, and then to the corresponding position of the glass plate 7 to achieve fine adjustment of the thickness of the glass plate 7; at the same time, the cold or hot air entering the temperature regulation unit 2 flows out from the front end through hole of the return air pipe 31, passes through the return air circulation area, and then enters the return air rectangular pipe 6 through the second through hole and the connecting bend pipe 32, and is then discharged from the return air port 11.

[0069] The assembly method of the substrate glass thickness fine adjustment device of the present invention is as follows:

[0070] First, several temperature control units 2 are installed side by side in the receiving cavity of the heat exchange box 1;

[0071] Secondly, the same number of return air pipes 31 are installed one by one on the connection through holes 8 of the rear end face 22 of the temperature regulating unit; at the same time, the air inlet pipes 41 are installed one by one from the sealing through holes of the rear end face of the return air pipes 31, and a certain distance is maintained between the end face of the insertion end of the air inlet pipe 41 and the inner wall surface of its corresponding temperature regulating unit 2.

[0072] Finally, several air inlet round pipes 41 are installed and connected to the air inlet rectangular pipe 5 through corresponding first through holes 12; several return air round pipes 31 are installed and connected to the return air rectangular pipe 6 through corresponding second through holes; at the same time, a cold air flow meter 43 is installed at the connection between the air inlet round pipe 41 and the air inlet rectangular pipe 5, and a hot air flow meter 44 is installed at the connection between the return air round pipe 31 and the return air rectangular pipe 6, so as to realize the control of the air volume demand for specific cooling and heating.

[0073] From the above description of specific embodiments of the substrate glass thickness fine adjustment device of the present invention, it can be seen that the substrate glass thickness fine adjustment device of the present invention includes a heat exchange chamber for finely adjusting the glass thickness on the substrate glass; the heat exchange chamber is provided with a receiving cavity with one side opening, and multiple temperature regulating units are arranged along the length of the receiving cavity and cooperate with the receiving cavity to realize heat conduction between the multiple temperature regulating units and the heat exchange chamber; each temperature regulating unit is provided with a temperature equalization chamber for circulating hot air or cold air; each temperature regulating unit is provided with an air inlet system and a return air system, one end of the air inlet system is inserted into the inside of the temperature equalization chamber, so that the air inlet system is connected to the temperature equalization chamber for inputting cold air or hot air; one end of the return air system is inserted into the temperature regulating unit and is connected to the temperature equalization chamber for outputting cold air or hot air; the air inlet system includes a cold air circulation area and a hot air circulation area for inputting cold air and hot air. The substrate glass thickness fine adjustment device of the present invention can finely adjust the thickness of the substrate glass; at the same time, it can select cooling or heating air to act on the corresponding area according to actual use needs, so as to achieve both cooling and heating functions.

[0074] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A device for finely adjusting the thickness of a substrate glass, characterized in that, The system includes a heat exchange chamber (1), which has a cavity with an opening on one side. Multiple temperature control units (2) are arranged along the length of the cavity and cooperate with it. Each temperature control unit (2) has a heat exchange chamber. Each temperature control unit (2) is equipped with an air inlet system (4) and a return air system (3). One end of the air inlet system (4) is inserted into the heat exchange chamber, allowing it to communicate with the heat exchange chamber. One end of the return air system (3) is inserted into the temperature control unit (2) and communicates with the heat exchange chamber. The air inlet system (4) includes a cold air circulation area and a hot air circulation area. Used for inputting cold and hot air; the air intake system (4) includes an air intake pipe (41), and the return air system (3) includes a return air pipe (31). One end of the return air pipe (31) is inserted into the side of the temperature regulating unit (2) corresponding to the opening side of the receiving cavity, and is connected to the temperature equalization cavity; the air intake pipe (41) passes through the return air pipe (31) along the axial direction of the return air pipe (31) and is inserted into the inside of the temperature equalization cavity; a first partition is provided inside the air intake pipe (41) to divide the air intake pipe (41) into a cold air circulation area and a hot air circulation area, and a return air circulation area is formed between the outer wall of the air intake pipe (41) and the inner wall of the return air pipe (31).

2. The substrate glass thickness fine adjustment device according to claim 1, characterized in that, The air intake system (4) also includes an air intake rectangular tube (5) and an air inlet at one end of the air intake rectangular tube (5). The air intake rectangular tube (5) is located at one end of the air intake circular tube (41) away from the heat exchange box (1) and is connected to each air intake circular tube (41). A second partition is provided inside the air intake rectangular tube (5) to divide the air intake rectangular tube (5) into a cold air inlet area and a hot air inlet area. The air inlet includes a cold air inlet (10) and a hot air inlet (9). The cold air inlet (10) and the cold air inlet area are connected to the cold air circulation area. The hot air inlet (9) and the hot air inlet area are connected to the hot air circulation area.

3. The substrate glass thickness fine adjustment device according to claim 2, characterized in that, The air inlet rectangular tube (5) is provided with a first through hole (12) connected to the air inlet circular tube (41). The first through hole (12) is provided in a one-to-one correspondence with the air inlet circular tube (41). The second partition divides the first through hole (12) into a cold air through hole and a hot air through hole. The cold air inlet (10), the cold air inlet area, the cold air through hole and the cold air circulation area are connected. The hot air inlet (9), the hot air inlet area, the hot air through hole and the hot air circulation area are connected.

4. The substrate glass thickness fine adjustment device according to claim 3, characterized in that, The air intake system (4) also includes a cold air flow meter (43) and a hot air flow meter (44). The cold air flow meter (43) is located at the connection between the cold air inlet area and the cold air circulation area and is used to control the selection of cold air and the flow rate of the incoming cold air. The hot air flow meter (44) is located at the connection between the hot air inlet area and the hot air circulation area and is used to control the selection of hot air and the flow rate of the incoming hot air.

5. The substrate glass thickness fine adjustment device according to claim 1, characterized in that, The return air system (3) also includes a return air rectangular pipe (6) and a return air inlet (11) located at one end of the return air rectangular pipe (6). The return air rectangular pipe (6) is located at one end of the return air circular pipe (31) away from the heat exchange box (1) and is connected to the return air circulation area in each return air circular pipe (31).

6. The substrate glass thickness fine adjustment device according to claim 5, characterized in that, A second through hole is provided on the side of the return air pipe (31) away from the heat exchange box (1). The second through hole is provided one-to-one with the return air pipe (31). The inlet pipe (41) and the end of the return air pipe (31) near the inlet rectangular pipe (5) are sealed together. The return air rectangular pipe (6) is connected to the second through hole through the connecting bend pipe (32), thereby realizing the connection between the return air port (11) and the return air circulation area.

7. The substrate glass thickness fine adjustment device according to any one of claims 1-6, characterized in that, The heat exchange chamber (1) is a right trapezoid. The front slope of the heat exchange chamber (1) is located close to the glass plate (7). The angle between the front slope and the upper surface of the heat exchange chamber (1) is 90-160°, and the angle between the front slope and the lower surface of the heat exchange chamber (1) is 20-90°.

8. The substrate glass thickness fine adjustment device according to claim 7, characterized in that, The shape of the containment cavity, temperature regulation unit (2), and temperature equalization cavity is a right trapezoid, and the heat equalization box (1), containment cavity, multiple temperature regulation units (2) and temperature equalization cavity are arranged in sequence.

9. A method for finely adjusting the thickness of a substrate glass, characterized in that, The substrate glass thickness fine adjustment device according to any one of claims 1-8 includes the following steps: S1, the heat exchange box (1) is placed on both sides of the glass plate (7); S2, according to the fine adjustment requirements of the substrate glass thickness, determine the number of temperature adjustment units (2), and input cold air or hot air into the cold air circulation area or hot air circulation area of ​​the air intake system (4) corresponding to the temperature adjustment unit (2), and flow into the temperature equalization chamber in the temperature adjustment unit (2); S3, cold or hot air is applied to the heat exchange box (1) through the temperature regulation unit (2), and then applied to the corresponding position of the glass plate (7) to achieve fine adjustment of the thickness of the glass plate (7); at the same time, the cold or hot air entering the temperature regulation unit (2) is discharged from the return air system (3).

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