Substrate glass thickness fine adjustment device and method

Abstract

The invention relates to the technical field of plate glass manufacturing, in particular to a substrate glass thickness fine adjustment device and method. The substrate glass thickness fine adjusting device comprises a soaking box body, a containing cavity with an opening in one side edge is formed in the soaking box body, a plurality of temperature adjusting units are arranged in the containing cavity in the length direction of the containing cavity and matched with the containing cavity, and a temperature homogenizing cavity is formed in each temperature adjusting unit; each temperature adjusting unit is correspondingly provided with an air inlet system and an air return system, one end of each air inlet system is inserted into the corresponding temperature equalizing cavity so that the air inlet system can be communicated with the corresponding temperature equalizing cavity, and one end of each air return system is inserted into the corresponding temperature adjusting unit and communicated with the corresponding temperature equalizing cavity. The air inlet system comprises a cold air circulation area and a hot air circulation area and is used for inputting cold air and hot air. The thickness of the substrate glass can be finely adjusted; meanwhile, cooling or heating air can be selected to act on the corresponding area according to the actual use requirement, and the two functions of cooling and heating are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of flat glass manufacturing, and in particular relates to a device and method for finely adjusting the thickness of a substrate glass. Background Art

[0002] There are many production methods for substrate glass, such as float glass, overflow down-draw method, slit down-draw method, etc. Regardless of which of the above production methods is used, there are high requirements for the thickness uniformity of the substrate glass. When using the overflow down-draw method, the molten glass will converge into a glass plate at the tip of the overflow brick. The glass plate produced in this way does not touch any equipment on the surface, and there is no pollution on the glass surface. In order to achieve fine adjustment of the thickness of the glass plate during the overflow down-draw production process, it is required to achieve fine adjustment of the plate thickness by controlling the temperature when the glass plate still has a certain degree of viscoelasticity. Therefore, a thickness fine-tuning device needs to be set when the glass is in this adjustable area.

[0003] The current adjustment method is to set a thickness fine-tuning device at both sides of the viscoelastic glass plate, and change the local temperature by blowing different cooling air volumes through the local air ducts of the thickness fine-tuning device to achieve fine adjustment of the local thickness of the glass plate. The thickness fine-tuning device structure currently used in production is to set a certain number of air inlet pipes inside the temperature-equalizing box, and change the surface temperature of the corresponding position of the temperature-equalizing box by adjusting the cooling air volume of the air inlet pipes to achieve the purpose of fine adjustment of the thickness of the specific position of the glass plate. However, in the prior art, the front end of the air inlet pipe is at a certain distance from the surface of the temperature-equalizing box. When the wind in a specific air inlet pipe enters the thickness fine-tuning device, the cooling wind will act on the temperature-equalizing box within a certain range nearby from the air duct mouth, causing the adjacent area to be affected; at the same time, the existing thickness fine-tuning device does not have a return air outlet, and the wind entering from the air inlet pipe will dissipate in the furnace, causing the pressure in the furnace to change, thereby changing the airflow in the furnace and affecting the performance of the glass.

[0004] A Chinese invention patent with publication number CN108911483 A and publication date November 30, 2018 discloses a device for rapid and fine adjustment of the thickness of a glass plate formed by an overflow down-draw method, including a heat-scaling carrier, in which a plurality of independent cooling air ducts are evenly distributed, and the starting point and the end point of the cooling air duct are located on the same end surface of the heat-scaling carrier to form an air inlet and an air outlet. When the cooling air enters the cooling air duct of the heat-scaling carrier through the air inlet, the molten high-temperature glass plate quickly exchanges heat with the cooling air through the heat-scaling carrier, and is then discharged through the air outlet, without being retained and circulated in the furnace, so as to achieve the purpose of rapid cooling and controlling the thickness of the glass plate. However, in the above scheme, the air inlet can only allow cooling air to enter to achieve the cooling function, and the heating function cannot be achieved, that is, it only has a single cooling function. Summary of the invention The object of the present invention is to provide a device for finely adjusting the thickness of a substrate glass, so as to solve the problem that the device for quickly and finely adjusting the thickness of a glass plate in the prior art cannot realize both cooling and heating as required.

[0005] In order to solve the above problems, the present invention proposes a device for finely adjusting the thickness of a substrate glass, and the technical solution adopted is: A device for finely adjusting the thickness of a substrate glass comprises a heat equalizing box body, wherein a accommodating chamber with an opening on one side is arranged in the heat equalizing box body, wherein a plurality of temperature regulating units are arranged in the accommodating chamber along the length direction of the accommodating chamber and cooperate with the accommodating chamber, wherein a temperature equalizing chamber is arranged in the temperature regulating unit; wherein each temperature regulating unit is correspondingly provided with an air inlet system and an air return system, wherein one end of the air inlet system is inserted in the interior of the temperature equalizing chamber so that the air inlet system is connected with the temperature equalizing chamber, wherein one end of the air return system is inserted in the temperature regulating unit and is connected with the temperature equalizing chamber; wherein the air inlet system comprises a cold air circulation area and a hot air circulation area for inputting cold air and hot air.

[0006] Furthermore, the air intake system includes an air intake circular duct, and the return air system includes a return air circular duct, one end of the return air circular duct is inserted at the side of the temperature regulating unit corresponding to the opening side of the accommodating cavity, and is connected to the temperature equalizing cavity; the air intake circular duct passes through the return air circular duct along the axial direction of the return air circular duct and is inserted inside the temperature equalizing cavity; a first partition is provided inside the air intake circular duct, which divides the air intake circular duct 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 circular duct and the inner wall of the return air circular duct.

[0007] Furthermore, the air intake system also includes an air intake rectangular tube and an air inlet arranged at one end of the air intake rectangular tube, the air intake rectangular tube is arranged on one end of the air intake circular tube away from the heat equalizing box, and is connected to each air intake circular tube at the same time; a second partition is arranged in the air intake rectangular tube, dividing the air intake rectangular tube into a cold air entrance area and a hot air entrance area, the air inlet includes a cold air inlet and a hot air inlet, the cold air inlet and the cold air entrance area are connected to the cold air circulation area, and the hot air inlet and the hot air entrance area are connected to the hot air circulation area.

[0008] Furthermore, a first through hole connected to the air inlet circular tube is provided on the air inlet rectangular tube, the first through hole is arranged in a one-to-one correspondence with the air inlet circular 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 port, the cold air inlet area, the cold air through hole and the cold air circulation area are connected; the hot air inlet port, the hot air inlet area, the hot air through hole and the hot air circulation area are connected.

[0009] Furthermore, the air intake system also includes a cold air flow meter and a hot air flow meter. The cold air flow meter is arranged at the connection between the cold air entrance area and the cold air circulation area, and is used to control the selection of cold air and the flow rate of incoming cold air; the hot air flow meter is arranged at the connection between the hot air entrance area and the hot air circulation area, and is used to control the selection of hot air and the flow rate of incoming hot air.

[0010] Furthermore, the return air system also includes a return air rectangular tube and a return air port arranged at one end of the return air rectangular tube. The return air rectangular tube is arranged on one end of the return air circular tube away from the heat equalizing box body, and is simultaneously connected to the return air flow area in each return air circular tube.

[0011] Furthermore, a second through hole is provided on the side of one end of the return air circular duct away from the heat equalizing box, the second through hole is provided in a one-to-one correspondence with the return air circular duct, and the air inlet circular duct is sealed and connected to one end of the return air circular duct close to the air inlet rectangular duct, the return air rectangular duct is connected to the second through hole through a connecting bend pipe, thereby realizing the connection between the return air outlet and the return air circulation area.

[0012] Furthermore, the shape of the heat equalizing box is a right-angled trapezoid, the front end slope of the heat equalizing box is arranged close to the glass plate, the angle between the front end slope and the upper end surface of the heat equalizing box is 90-160°, and the angle between the front end slope and the lower end surface of the heat equalizing box is 20-90°.

[0013] Furthermore, the shapes of the accommodating chamber, the temperature regulating unit and the temperature-averaging chamber are all right-angled trapezoids, and the heat-averaging box, the accommodating chamber, the plurality of temperature regulating units and the temperature-averaging chamber are matched in sequence.

[0014] Beneficial effects: The present invention is an improved invention. The present invention is provided with a temperature-equalizing box, and a plurality of temperature regulating units are provided in the accommodating cavity, and the temperature regulating units are matched with the accommodating cavity. At the same time, each temperature regulating unit is provided with an air inlet system and a return air system. When the thickness of the glass plate needs to be finely adjusted locally, the number of air inlet systems and temperature regulating units in the corresponding area is adjusted. The air inlet system acts on the temperature regulating unit. The temperature regulating unit can finely adjust the thickness of the substrate glass by changing the temperature of the temperature-equalizing box at the corresponding position after direct heat conduction with the temperature-equalizing box. At this time, the wind of the air inlet system can be returned from the return air system to the outside of the furnace and discharged uniformly after being blown into the temperature regulating unit. At the same time, the air inlet system includes a cold air circulation area and a hot air circulation area for inputting cold air and hot air. According to actual use needs, cooling or heating air can be selected to act on the corresponding area to achieve both cooling and heating effects.

[0015] The substrate glass thickness fine adjustment device of the present invention is arranged in the molding equipment, located on the two sides below the overflow structure and at a certain distance from the glass plate. In actual production, it can more accurately apply a separate effect to the specific position where temperature adjustment is required, and more accurately apply the effect of hot air or cold air to the glass plate position at a specific position, so as to achieve the effect of fixed-point fine adjustment of thickness; at the same time, after the wind of the air intake system blows into the temperature adjustment unit, it can be returned from the return air system to the outside of the furnace and discharged uniformly, so as to prevent the wind in the temperature-equalizing box from escaping in the furnace, thereby changing the furnace pressure and airflow; at the same time, the air intake system includes a cold air circulation area and a hot air circulation area, and according to actual use needs, cooling or heating air can be selected to act on the corresponding area, and cooling and heating effects can be achieved at the same time, which increases the adjustment margin and range of the process and meets the diversity of production needs. This device can not only adjust the glass thickness more accurately when the temperature-equalizing box is used to adjust the thickness during the production process, but also ensure the stability of the air pressure in the furnace.

[0016] 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: S1, setting a heat soaking box on both sides of the glass plate; S2, according to the need for fine adjustment of the thickness of the substrate glass, determine the number of temperature adjustment units, input cold air or hot air into the cold air circulation area or hot air circulation area in the air inlet system corresponding to the temperature adjustment unit, and flow into the temperature uniformity cavity in the temperature adjustment unit; S3, the cold air or hot air acts on the temperature-equalizing box through the temperature regulating unit, and then acts on the corresponding position of the glass plate to achieve fine adjustment of the thickness of the glass plate; at the same time, the cold air or hot air entering the temperature regulating unit is discharged from the return air system.

[0017] The air inlet system includes an air inlet circular duct, and the return air system includes a return air circular duct. One end of the return air circular duct is inserted at the side of the temperature regulating unit corresponding to the opening side of the accommodating cavity, and is connected to the temperature equalizing cavity; the air inlet circular duct passes through the return air circular duct along the axial direction of the return air circular duct and is inserted inside the temperature equalizing cavity; a first partition is provided in the air inlet circular duct, which divides the air inlet circular duct 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 inlet circular duct and the inner wall of the return air circular duct, which can simply and effectively realize the setting of the water inlet system and the return water system, and realize the input of cold water and hot water.

[0018] The air intake system also includes an air intake rectangular tube and an air inlet arranged at one end of the air intake rectangular tube, the air intake rectangular tube is arranged on an end of the air intake circular tube away from the heat equalizing box body, and is connected with each air intake circular tube at the same time; a second partition is arranged in the air intake rectangular tube, and the air intake rectangular tube is divided 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 with the cold air circulation area, and the hot air inlet and the hot air inlet area are connected with the hot air circulation area, so as to realize the unified control and input of the air intake volume of the air intake system and improve the adjustment accuracy.

[0019] The air inlet rectangular tube is provided with a first through hole connected to the air inlet circular tube, the first through hole is arranged in a one-to-one correspondence with the air inlet circular 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 port, the cold air inlet area, the cold air through hole and the cold air circulation area are connected; the hot air inlet port, the hot air inlet area, the hot air through hole and the hot air circulation area are connected, which is convenient for realizing the connected input of cold air and the connected input of hot air, and has a simple structure and is easy to operate.

[0020] The air inlet system also includes a cold air flow meter and a hot air flow meter. The cold air flow meter is arranged 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 is arranged 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 realize the precise control of the flow rate of the incoming cold air or the flow rate of the hot air, thereby further improving the accuracy of the substrate thickness adjustment.

[0021] The return air system also includes a return air rectangular tube and a return air port arranged at one end of the return air rectangular tube. The return air rectangular tube is arranged on one end of the return air circular tube away from the heat equalizing box, and is simultaneously connected to the return air flow area in each return air circular tube, so as to simultaneously realize the output of return air in the return air circular tube, which is convenient to operate and efficient.

[0022] The shape of the heat equalizing box is a right-angled trapezoid, and the front end slope of the heat equalizing box is arranged close to the substrate glass. The angle between the front end slope and the upper end surface of the heat equalizing box is 90-160°, and the angle between the front end slope and the lower end surface of the heat equalizing box is 20-90°, which can further improve the adjustment accuracy.

[0023] The shapes of the accommodating cavity, the temperature regulating unit and the temperature equalizing cavity are all right-angled trapezoids, and the heat equalizing box, the accommodating cavity, the multiple temperature regulating units and the temperature equalizing cavity are matched in sequence. The multiple temperature regulating units are in direct contact with the inner surface of the temperature equalizing box, and the wind from the air intake system is blown directly into the temperature regulating unit, and will not cause the wind from the air intake system to affect the area next to the temperature equalizing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 1 is a schematic diagram of the installation structure of the adjusting device in the embodiment 1 of the device for finely adjusting the thickness of a substrate glass of the present invention; Figure 2 is a schematic structural diagram of an adjusting device in Embodiment 1 of a device for finely adjusting the thickness of a substrate glass of the present invention; Figure 3 It is a schematic structural diagram of a water inlet system and a water return system in Embodiment 2 of the device for finely adjusting the thickness of a substrate glass of the present invention; Figure 4 is a structural stereogram of an adjusting device in Embodiment 2 of the device for finely adjusting the thickness of a substrate glass of the present invention; Figure 5 2 is a schematic diagram of the structure of the rectangular air inlet tube in the embodiment 2 of the device for finely adjusting the thickness of the substrate glass of the present invention; Figure 6 1 is a schematic diagram of the working state of the device for finely adjusting the thickness of a substrate glass in Embodiment 1 of the method for finely adjusting the thickness of a substrate glass of the present invention; Figure 7 It is a schematic diagram of the operation of the cold air flow meter and the hot air flow meter in Example 1 of the method for finely adjusting the thickness of the substrate glass of the present invention; In the figure, 1. heat equalizing box, 2. temperature regulating unit, 21. front end slope of temperature regulating unit, 22. rear end face of temperature regulating unit, 3. return air system, 31. return air circular duct, 32. connecting elbow, 4. air inlet system, 41. air inlet circular duct, 42. partition, 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 DESCRIPTION

[0025] As cited in the background technology, the glass plate thickness fast fine adjustment device in the prior art cannot realize the two functions of cooling and heating at the same time as required. Therefore, the present invention proposes a substrate glass thickness fine adjustment device, including a heat equalization box, which is used to act on the substrate glass to finely adjust the glass thickness; a accommodating chamber with an opening on one side is provided in the heat equalization box, and a plurality of temperature adjustment units are arranged along the length direction of the accommodating chamber in the accommodating chamber, and cooperate with the accommodating chamber to realize heat conduction between the plurality of temperature adjustment units and the heat equalization box; a temperature equalization chamber is provided in the temperature adjustment unit, which is used to circulate hot air or cold air; each temperature adjustment unit is correspondingly provided with an air inlet system and a return air system, one end of the air inlet system is inserted in the interior of the temperature equalization chamber, so that the air inlet system is connected with the temperature equalization chamber for inputting cold air or hot air; one end of the return air system is inserted in the temperature adjustment unit, and is connected with 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, which are used to input 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, according to actual use requirements, cooling or heating wind can be selected to act on the corresponding area to achieve both cooling and heating effects.

[0026] Specific embodiment 1 of the device for finely adjusting the thickness of substrate glass of the present invention: In this embodiment, Figure 1 and Figure 2 As shown, the substrate glass thickness fine adjustment device includes a heat equalizing box 1, a accommodating chamber with an opening on one side is arranged in the heat equalizing box 1, a plurality of temperature regulating units 2 are arranged in the accommodating chamber along the length direction of the accommodating chamber, and cooperate with the accommodating chamber, and a temperature equalizing chamber is arranged in the temperature regulating unit 2; each temperature regulating unit 2 is correspondingly provided with an air inlet system 4 and a return air system 3, one end of the air inlet system 4 is inserted in the interior of the temperature equalizing chamber, so that the air inlet system 4 is connected with the temperature equalizing chamber, one end of the return air system 3 is inserted on the temperature regulating unit 2, and is connected with the temperature equalizing chamber; the air inlet system 4 includes a cold air circulation area and a hot air circulation area, which are used to input cold air and hot air, wherein the temperature range of the cold air is 100-500°C, and the temperature range of the hot air is 18-25°C.

[0027] In this embodiment, the air inlet system 4 includes an air inlet circular duct 41, and the return air system 3 includes a return air circular duct 31. One end of the return air circular duct 31 is inserted at the side of the temperature regulating unit 2 corresponding to the opening side of the accommodating cavity, and is connected to the uniform temperature cavity; the air inlet circular duct 41 passes through the return air circular duct 31 along the axial direction of the return air circular duct 31 and is inserted inside the uniform temperature cavity, and the distance between the end face of the insertion end of the air inlet circular duct 41 and the inner wall face on the corresponding temperature regulating unit 2 is 5-20mm; a first partition layer is provided in the air inlet circular duct 41, which divides the air inlet circular duct 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 inlet circular duct 41 and the inner wall of the return air circular duct 31. Specifically, a connecting through hole 8 is provided on the side of the temperature regulating unit 2 corresponding to the opening side of the accommodating cavity. The return air circular duct 31 is installed on the connecting through hole 8 by welding, and the front end of the return air circular duct 31 is set as a front end through hole, which is connected to the temperature equalization cavity, so that the regulated air entering the inner cavity of the temperature regulating unit 2 can enter the return air system 3 from the front end through hole of the return air circular duct 31.

[0028] Among them, the material of the heat equalizing box body 1 is a material with good thermal conductivity, which can be silicon carbide, silicon nitride or metal material, which is resistant to high temperature and not easy to be damaged or broken; the shape of the heat equalizing box body 1 is a right-angled trapezoid, and the front end bevel of the heat equalizing box body 1 is arranged close to the glass plate 7, and the angle between the front end bevel and the upper end face of the heat equalizing box body 1 is 120°, and the angle between the front end bevel and the lower end face of the heat equalizing box body 1 is 60°. The temperature adjustment unit 2 is a material with good thermal conductivity, which can also be silicon carbide, silicon nitride, metal and other materials, which is resistant to high temperature and not easy to be damaged or broken. The temperature adjustment unit 2 is a shell structure with a certain thickness, and the outer surface of the temperature adjustment unit 2 is consistent with the outer shape structure of the inner surface of the heat equalizing box body 1, and the rear end face is a vertical plane structure. Specifically, the shapes of the accommodating cavity, the temperature regulating unit 2, and the temperature-averaging cavity are all right-angled trapezoids, and the heat-averaging box 1, the accommodating cavity, the multiple temperature regulating units 2, and the temperature-averaging cavity are matched in sequence, so that the hot air or cold air acts evenly and accurately on the glass plate 7. That is, when in use, the front end inclined surface 21 of the temperature regulating unit is matched with the inclined side wall of the accommodating cavity of the heat-averaging box 1 corresponding to it, and a connecting through hole 8 is provided on the rear end surface 22 of the temperature regulating unit for installing the return air duct 31. The first interlayer is a partition 42; multiple temperature regulating units 2 are arranged in the accommodating cavity to form a complete match, and the air inlet duct 41 and the return air duct 31 are arranged at equal intervals along the length direction of the heat-averaging box 1.

[0029] In other embodiments, the air inlet system 4 includes an air inlet circular duct 41, which is directly inserted from the side of the temperature regulating unit 2 corresponding to the opening side of the accommodating cavity and is inserted into the interior of the temperature equalizing cavity; the return air system 3 includes two return air circular ducts 31, which are arranged on both sides of the air inlet circular duct 41, and one end of the return air circular duct 31 is inserted at the side of the temperature regulating unit 2 corresponding to the opening side of the accommodating cavity, and is connected to the temperature equalizing cavity.

[0030] In other embodiments, the air inlet circular duct 41 and the air return circular duct 31 may be arranged at unequal intervals along the length direction of the heat equalizing box 1 .

[0031] In other embodiments, the number of the temperature adjustment units 2 may be adjusted according to the need to adjust the thickness of the substrate glass, so that a plurality of temperature adjustment units 2 are arranged in the accommodating cavity to form an incomplete fit.

[0032] In other embodiments, the shape of the heat equalizing box 1 is a right-angled trapezoid, the front end slope of the heat equalizing box 1 is set close to the substrate glass, the angle between the front end slope and the upper end surface of the heat equalizing box 1 is 90°, and the angle between the front end slope and the lower end surface of the heat equalizing box 1 is 90°.

[0033] In other embodiments, the shape of the heat equalizing box 1 is a right-angled trapezoid, the front end slope of the heat equalizing box 1 is set close to the substrate glass, the angle between the front end slope and the upper end surface of the heat equalizing box 1 is 160°, and the angle between the front end slope and the lower end surface of the heat equalizing box 1 is 20°.

[0034] In other embodiments, a connection hole is provided on the side of the temperature regulating unit 2 corresponding to the opening side of the accommodating chamber, and the return air circular duct 31 is installed on the connection hole by threaded connection and communicated with the temperature equalization chamber.

[0035] Specific embodiment 2 of the device for finely adjusting the thickness of substrate glass of the present invention: Based on the above technical concept of the present invention, or based on the above specific embodiment of the present invention, another embodiment is provided below.

[0036] In this embodiment, Figure 3 , Figure 4 and Figure 5As shown, the air inlet system 4 also includes an air inlet rectangular tube 5 and an air inlet arranged at one end of the air inlet rectangular tube 5. The air inlet rectangular tube 5 is arranged on one end of the air inlet circular tube 41 away from the heat equalizing box 1, and is connected with each air inlet circular tube 41 at the same time. The material of the air inlet rectangular tube 5 is metal material, which should have high temperature resistance and corrosion resistance; a second partition is arranged in the air inlet rectangular tube 5, which divides the air inlet rectangular tube 5 into a cold air inlet area and a hot air inlet area, and 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, and the hot air inlet 9 and the hot air inlet area are connected to the hot air circulation area.

[0037] Specifically, the air inlet rectangular tube 5 is provided with a first through hole 12 connected to the air inlet circular tube 41, and the first through hole 12 is arranged one-to-one with the air inlet circular tube 41. The second interlayer divides the first through hole 12 into a cold air through hole and a hot air through hole. The cold air inlet port 10, the cold air inlet area, the cold air through hole and the cold air circulation area are connected; the hot air inlet port 9, the hot air inlet area, the hot air through hole and the hot air circulation area are connected. When in use, cold air is input from the cold air inlet port 10 and enters the cold air inlet area in the air inlet rectangular tube 5, and the cold air flows out from the cold air through hole into the cold air circulation area, and then flows into the uniform temperature chamber of the temperature regulating unit 2; hot air is input from the hot air inlet port 9 and enters the hot air inlet area in the return air rectangular tube 6, and the hot air flows out from the hot air through hole into the hot air circulation area, and then flows into the uniform temperature chamber of the temperature regulating unit 2.

[0038] In other embodiments, a through hole is provided on the air inlet rectangular tube 5 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.

[0039] Specific embodiment 3 of the device for finely adjusting the thickness of substrate glass of the present invention: Based on the above technical concept of the present invention, or based on the above specific embodiment of the present invention, another embodiment is provided below.

[0040] In this embodiment, Figure 3 As shown, the air inlet system 4 also includes a cold air flow meter 43 and a hot air flow meter 44. The cold air flow meter 43 is arranged at the connection between the cold air entrance 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 arranged at the connection between the hot air entrance 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 realize the precise control of the flow rate of the incoming cold air or the flow rate of the hot air, and further improve the accuracy of the substrate thickness adjustment.

[0041] Specific embodiment 4 of the device for finely adjusting the thickness of substrate glass of the present invention: Based on the above technical concept of the present invention, or based on the above specific embodiment of the present invention, another embodiment is provided below.

[0042] In this embodiment, Figure 3 , Figure 4 As shown, the return air system 3 also includes a return air rectangular tube 6 and a return air port 11 arranged at one end of the return air rectangular tube 6. The return air rectangular tube 6 is arranged on the end of the return air circular tube 31 away from the heat equalizing box 1, and is connected to the return air circulation area in each return air circular tube 31 at the same time. The material of the return air rectangular tube 6 is a metal material, which should be resistant to high temperature and corrosion. A second through hole is arranged on the side of the end of the return air circular tube 31 away from the heat equalizing box 1. The second through hole is arranged one-to-one with the return air circular tube 31, and the air inlet circular tube 41 is sealed and connected to one end of the return air circular tube 31 close to the air inlet rectangular tube 5. The return air rectangular tube 6 is connected to the second through hole through the connecting elbow 32, thereby realizing the connection between the return air port 11 and the return air circulation area. Specifically, a sealed through hole is reserved on the end face of the return air circular tube 31 close to the air inlet rectangular tube 5, and the air inlet circular tube 41 passes through the return air circular tube 31 through the through hole and extends into the temperature regulating unit 2. Before installation, the size difference between the inner diameter of the sealing hole on the return air duct 31 and the outer diameter of the air inlet duct 41 is 0.1-0.5mm, that is, a 0.1-0.5mm installation gap is reserved; after installation, the sealing hole is sealed by welding to achieve a sealed connection between the air inlet duct 41 and the return air duct 31.

[0043] Specific embodiment 1 of the method for finely adjusting the thickness of substrate glass of the present invention: In this embodiment, 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: First, place the heat soaking box 1 on both sides of the glass plate 7; Secondly, according to the need for fine adjustment of the thickness of the substrate glass, the number of temperature adjustment units 2 is determined, and cold air or hot air is input into the cold air circulation area or hot air circulation area in the air inlet system 4 corresponding to the temperature adjustment unit 2, and flows into the temperature uniformity cavity in the temperature adjustment unit 2; Finally, the cold air or hot air acts on the heat equalizing box 1 through the temperature adjustment unit 2, and then acts on 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 air or hot air entering the temperature adjustment unit 2 is discharged from the return air system 3.

[0044] When in use, the heat-saturating box 1 of the substrate glass thickness fine-tuning device can be a one-stage structure or a three-stage or multi-stage spliced ​​structure. Two airflow integration structures of the heat-saturating boxes 1 form a group and are 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 thickness of the local glass plate.

[0045] Specifically, the method for finely adjusting the thickness of the substrate glass comprises the following steps: First, place the heat soaking box 1 on both sides of the glass plate 7; Secondly, according to the need for fine adjustment of the thickness of the substrate glass, the number of temperature adjustment units 2 is determined, and cold air is input from the cold air inlet 10 and enters the cold air inlet area in the return air rectangular tube 6, and the cold air flows out from the cold air through hole into the cold air circulation area, and then flows into the uniform temperature chamber of the temperature adjustment unit 2; or hot air is input from the hot air inlet 9 and enters the hot air inlet area in the return air rectangular tube 6, and the hot air flows out from the hot air through hole into the hot air circulation area, and then flows into the uniform temperature chamber of the temperature adjustment unit 2; Finally, the cold air or hot air acts on the heat equalizing box 1 through the temperature regulating unit 2, and then acts on the corresponding position of the glass plate 7, so as to achieve fine adjustment of the thickness of the glass plate 7; at the same time, the cold air or hot air entering the temperature regulating unit 2 flows out from the front end through hole of the return air circular duct 31, passes through the return air circulation area, and then enters the return air rectangular duct 6 through the second through hole and the connecting elbow 32, and is then discharged from the return air outlet 11.

[0046] The assembly method of the substrate glass thickness fine adjustment device of the present invention is as follows: First, several temperature adjustment units 2 are installed in parallel and adjacent to each other in the accommodation cavity of the heat equalization box 1; Secondly, the same number of return air circular tubes 31 are installed one by one on the connecting through holes 8 of the rear end face 22 of the temperature regulating unit; at the same time, the air inlet circular tubes 41 are installed one by one from the sealed through holes of the rear end face of the return air circular tubes 31, and it is ensured that a certain distance is maintained between the end face of the insertion end of the air inlet circular tube 41 and the inner wall surface of the corresponding temperature regulating unit 2; Finally, several air inlet circular ducts 41 are installed and connected to the air inlet rectangular duct 5 through the corresponding first through holes 12; several air return circular ducts 31 are installed and connected to the air return rectangular duct 6 through the corresponding second through holes; at the same time, a cold air flow meter 43 is installed at the connection between the air inlet circular duct 41 and the air inlet rectangular duct 5, and a hot air flow meter 44 is installed at the connection between the return air circular duct 31 and the return air rectangular duct 6, so as to realize the control of specific cooling and heating air volume requirements.

[0047] Through the above description of the 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 equalizing box body, which is used to act on the substrate glass to perform fine adjustment of the glass thickness; a accommodating chamber with an opening on one side is arranged in the heat equalizing box body, and a plurality of temperature adjustment units are arranged in the accommodating chamber along the length direction of the accommodating chamber, and cooperate with the accommodating chamber to realize heat conduction between the plurality of temperature adjustment units and the heat equalizing box body; a temperature equalizing chamber is arranged in the temperature adjustment unit, which is used to circulate hot air or cold air; each temperature adjustment unit is correspondingly provided 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 equalizing chamber, so that the air inlet system is connected with the temperature equalizing chamber for inputting cold air or hot air; one end of the return air system is inserted into the temperature adjustment unit, and is connected with the temperature equalizing chamber, which is used for outputting cold air or hot air; the air inlet system includes a cold air circulation area and a hot air circulation area, which are used 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, according to actual use requirements, cooling or heating wind can be selected to act on the corresponding area to achieve both cooling and heating effects.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.

Claims

1. A device for finely adjusting the thickness of a substrate glass, characterized in that: The invention comprises a heat equalizing box (1), wherein a accommodating chamber with an opening on one side is arranged in the heat equalizing box (1), wherein a plurality of temperature regulating units (2) are arranged in the accommodating chamber along the length direction of the accommodating chamber and cooperate with the accommodating chamber, wherein a temperature equalizing chamber is arranged in the temperature regulating unit (2); each temperature regulating unit (2) is correspondingly provided with an air inlet system (4) and an air return system (3), wherein one end of the air inlet system (4) is inserted into the interior of the temperature equalizing chamber so that the air inlet system (4) is connected to the temperature equalizing chamber, and one end of the air return system (3) is inserted into the temperature regulating unit (2) and is connected to the temperature equalizing chamber; the air inlet system (4) comprises a cold air circulation area and a hot air circulation area for inputting cold air and hot air.

2. The device for finely adjusting the thickness of substrate glass according to claim 1, characterized in that: The air intake system (4) comprises an air intake circular tube (41), and the air return system (3) comprises a return air circular tube (31); one end of the return air circular tube (31) is inserted into a side edge of the temperature regulating unit (2) corresponding to an opening side edge of the accommodating chamber, and is connected to the temperature equalizing chamber; the air intake circular tube (41) passes through the return air circular tube (31) along the axial direction of the return air circular tube (31) and is inserted into the interior of the temperature equalizing chamber; a first partition is provided inside the air intake circular tube (41), dividing the air intake circular tube (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 circular tube (41) and the inner wall of the return air circular tube (31).

3. The device for finely adjusting the thickness of substrate glass according to claim 2, characterized in that: The air inlet system (4) further comprises an air inlet rectangular tube (5) and an air inlet port arranged at one end of the air inlet rectangular tube (5); the air inlet rectangular tube (5) is arranged at one end of the air inlet circular tube (41) away from the heat equalizing box (1), and is simultaneously connected to each air inlet circular tube (41); a second partition is arranged inside the air inlet rectangular tube (5), dividing the air inlet rectangular tube (5) into a cold air inlet area and a hot air inlet area; the air inlet port comprises a cold air inlet port (10) and a hot air inlet port (9); the cold air inlet port (10) and the cold air inlet area are connected to the cold air circulation area, and the hot air inlet port (9) and the hot air inlet area are connected to the hot air circulation area.

4. The device for finely adjusting the thickness of substrate glass according to claim 3, 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) and the air inlet circular tube (41) are arranged in a one-to-one correspondence; the second partition layer divides the first through hole (12) into a cold air through hole and a hot air through hole; the cold air inlet port (10), the cold air inlet area, the cold air through hole and the cold air circulation area are connected; the hot air inlet port (9), the hot air inlet area, the hot air through hole and the hot air circulation area are connected.

5. The device for finely adjusting the thickness of substrate glass according to claim 4, characterized in that: The air intake system (4) further comprises a cold air flow meter (43) and a hot air flow meter (44); the cold air flow meter (43) is arranged at the connection between the cold air intake 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 arranged at the connection between the hot air intake 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.

6. The device for finely adjusting the thickness of substrate glass according to claim 2, characterized in that: Said The return air system (3) further comprises a return air rectangular tube (6) and a return air port (11) arranged at one end of the return air rectangular tube (6); the return air rectangular tube (6) is arranged on one end of the return air circular tube (31) away from the heat equalizing box (1), and is simultaneously connected to the return air flow area in each return air circular tube (31).

7. The device for finely adjusting the thickness of a substrate glass according to claim 6, characterized in that: Said A second through hole is provided on the side of one end of the return air circular tube (31) away from the heat equalizing box (1), and the second through hole is provided in a one-to-one correspondence with the return air circular tube (31). The air inlet circular tube (41) is sealedly connected to one end of the return air circular tube (31) close to the air inlet rectangular tube (5), and the return air rectangular tube (6) is connected to the second through hole via a connecting elbow (32), thereby realizing the connection between the return air port (11) and the return air circulation area.

8. The device for finely adjusting the thickness of a substrate glass according to any one of claims 1 to 7, characterized in that: The shape of the heat equalizing box (1) is a right-angled trapezoid. The front end inclined surface of the heat equalizing box (1) is arranged close to the glass plate (7). The angle between the front end inclined surface and the upper end surface of the heat equalizing box (1) is 90-160°, and the angle between the front end inclined surface and the lower end surface of the heat equalizing box (1) is 20-90°.

9. The device for finely adjusting the thickness of a substrate glass according to claim 8, characterized in that: The shapes of the accommodating chamber, the temperature regulating unit (2) and the temperature-averaging chamber are all right-angled trapezoids, and the heat-averaging box (1), the accommodating chamber, the plurality of temperature regulating units (2) and the temperature-averaging chamber are matched in sequence.

10. A method for finely adjusting the thickness of a substrate glass, characterized in that: The device for finely adjusting the thickness of a substrate glass according to any one of claims 1 to 9 comprises the following steps: S1, placing a heat soaking box (1) on both sides of a glass plate (7); S2, determining the number of temperature adjustment units (2) according to the need for fine adjustment of the thickness of the substrate glass, inputting cold air or hot air into the cold air circulation area or hot air circulation area in the air inlet system (4) corresponding to the temperature adjustment unit (2), and flowing the cold air or hot air into the temperature uniformity cavity in the temperature adjustment unit (2); S3, the cold air or hot air acts on the heat equalizing box (1) through the temperature adjustment unit (2), and then acts on the corresponding position of the glass plate (7), so as to achieve fine adjustment of the thickness of the glass plate (7); at the same time, the cold air or hot air entering the temperature adjustment unit (2) is discharged from the return air system (3).

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