Float high-aluminum ultrathin flexible electronic glass annealing device and method

Abstract

The invention discloses a float high-aluminum ultrathin flexible electronic glass annealing device and method. The float high-aluminum ultrathin flexible electronic glass annealing device comprises an annealing kiln, a plurality of electric heaters are arranged in the annealing kiln, the electric heaters are arranged in an up-and-down staggered mode, a plurality of open holes are formed in the top face of the annealing kiln, and movable temperature measuring mechanisms are arranged on the open holes; the electric heater comprises a heating groove, spacers are arranged in the heating groove and divide the heating groove into a plurality of heating cavities, and an electric heating rod with adjustable power is arranged in each heating cavity; the movable temperature measuring mechanism comprises a supporting frame communicated with the open hole, a folding telescopic heat insulation cover is arranged on the supporting frame, rails perpendicular to the glass conveying direction are arranged on the two sides of the supporting frame, an electric trolley is arranged on the rails, the middle of the folding telescopic heat insulation cover is fixedly connected with the electric trolley, and an infrared thermometer is installed on the trolley. The invention is used for solving the problem that the transverse temperature uniformity and the longitudinal temperature gradient of the glass are difficult to control due to extremely fast heat loss of the ultrathin glass.

Description

Technical Field

[0001] The invention relates to a float high-aluminum ultra-thin flexible electronic glass annealing device and method. Background Art

[0002] With the rapid advancement of electronic technology, more and more electronic devices are developing in the direction of being thinner, more flexible and wearable. High-aluminum ultra-thin flexible glass has the characteristics of wear resistance, good light transmittance, high strength, bendability and good resilience. It is considered to be an important development direction of flexible folding materials in the field of new display applications. In the future, it will be widely used in folding mobile phones, folding notebooks, scroll displays and other flexible display products, and has broad application prospects. High-aluminum ultra-thin flexible electronic glass is difficult to form, annealing is difficult to control, cutting losses are serious, and the yield rate is low. In particular, annealing uniformity directly determines the cutting yield and the profitability of the enterprise. Therefore, the threshold for the float high-aluminum field to enter the flexible glass is high. The high-aluminum flexible electronic glass substrate has an ultra-thin thickness requirement of ≤0.25mm. During the annealing process, the heat of the glass body dissipates quickly. The control of lateral temperature uniformity and longitudinal temperature gradient is particularly important and difficult. Summary of the invention

[0003] The object of the present invention is to provide a float high-aluminum ultra-thin flexible electronic glass annealing device and method, which is used to solve the problem that the ultra-thin glass loses heat very quickly, resulting in the difficulty in controlling the lateral temperature uniformity and longitudinal temperature gradient of the glass.

[0004] In order to solve the above problems, the technical solution of the present invention is: A float high-aluminum ultra-thin flexible electronic glass annealing device comprises an annealing furnace, a plurality of electric heaters are arranged in the annealing furnace, and each electric heater is arranged in an up-and-down staggered manner, a plurality of openings are opened on the top surface of the annealing furnace, and a movable temperature measuring mechanism is arranged on the openings; The electric heater comprises a heating tank, in which a partition is arranged, and the partition divides the heating tank into a plurality of heating chambers, and in each heating chamber an electric heating rod with adjustable power is arranged; The mobile temperature measuring mechanism includes a support frame connected to the opening, a foldable and telescopic heat insulation cover is arranged on the support frame, tracks perpendicular to the glass conveying direction are arranged on both sides of the support frame, an electric trolley is arranged on the track, the middle part of the foldable and telescopic heat insulation cover is fixedly connected to the electric trolley, and an infrared thermometer is installed on the trolley.

[0005] A jacket is arranged outside the infrared thermometer, and the jacket is connected with a water inlet pipe and a drain pipe.

[0006] The foldable and telescopic heat insulation cover comprises a surface insulation board, a middle layer of asbestos insulation wool and a bottom layer of asbestos insulation cloth.

[0007] A method for a float high-aluminum ultra-thin flexible electronic glass annealing device, during the glass is transported in an annealing furnace, a trolley carrying an infrared thermometer moves horizontally to measure the temperature of the glass to obtain the lateral temperature difference of the glass, and then adjusts the temperature of each electric heating rod in the electric heater according to the lateral temperature difference of the glass.

[0008] The beneficial effects of the present invention are as follows: by continuously measuring the temperature of the glass in the horizontal direction with an infrared thermometer, abnormal horizontal temperature points are detected, and the horizontal temperature median is regressed by adjusting the electric heating rod to eliminate local temperature anomalies, improve the temperature uniformity of the glass plate, and improve the yield of high-aluminum ultra-thin flexible glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described below in conjunction with the accompanying drawings: Figure 1 is a schematic diagram of the three-dimensional structure of the present invention, Figure 2 is a schematic diagram of the three-dimensional structure of the present invention, Figure 3 This is a three-dimensional structural diagram of an electric heater according to the present invention. Figure 4 It is a structural schematic diagram of the mobile temperature measuring mechanism of the present invention. Figure 5 It is a structural schematic diagram of the mobile temperature measuring mechanism of the present invention. Figure 6 is a cross-sectional schematic diagram of the mobile temperature measuring mechanism of the present invention, Figure 7 It is a schematic diagram of the main structure of the present invention.

[0010] In the figure: annealing furnace 100, mobile temperature measuring mechanism 200, support frame 201, electric trolley 202, foldable telescopic heat insulation cover 203, infrared thermometer 204, jacket 205, heat insulation board 206, heat insulation cotton 207, heat insulation cloth 208, electric heater 300, heating tank 301, electric heating rod 302, spacer 303, slag box 400, partition seal 500. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] like Figures 1 to 7As shown, a float high-aluminum ultra-thin flexible electronic glass annealing device includes an annealing furnace 100, a plurality of electric heaters 300 are arranged in the annealing furnace 100, and each electric heater 300 is arranged in an up-and-down staggered manner. A plurality of openings are opened on the top surface of the annealing furnace 100, and a movable temperature measuring mechanism 200 is arranged on the openings; The electric heater comprises a heating tank 301, in which a partition 303 is arranged, and the partition 303 divides the heating tank 301 into a plurality of heating chambers, and in each heating chamber a power-adjustable electric heating rod 302 is arranged, and the heating temperature of each heating chamber in the same heating tank 301 can be adjusted by adjusting the power of the heating rod; The mobile temperature measuring mechanism 200 includes a support frame 201 connected to the rectangular opening, a folding and telescopic heat insulation cover 203 is arranged on the support frame 201, tracks perpendicular to the glass conveying direction are arranged on both sides of the support frame 201, an electric trolley 202 is arranged on the track, the middle part of the folding and telescopic heat insulation cover 203 is fixedly connected to the electric trolley 202, and an infrared thermometer 204 is installed on the trolley. The mobile electric trolley 202 detects the lateral temperature of the glass.

[0013] A jacket 205 is provided outside the infrared thermometer 204, and a water inlet pipe and a drain pipe are connected to the jacket 205. Cooling water is continuously transported into the jacket 205 to cool the infrared thermometer 204.

[0014] The foldable telescopic heat insulation cover 203 includes a surface heat insulation board 206, an intermediate layer of asbestos heat insulation wool 207 and a bottom layer of asbestos heat insulation cloth 208. The foldable telescopic heat insulation cover 203 is used to block the heat emitted by the annealing furnace 100 to prevent the heat from being transferred to the electric trolley 202 and affecting the use of the electric trolley 202.

[0015] The foldable and telescopic heat insulation cover 203 is U-shaped. The U-shaped foldable and telescopic heat insulation cover 203 can cover the support frame 201 to further reduce heat escape.

[0016] The discharge end of the annealing furnace 100 is connected to the slag box 400 through a separation seal 500. The separation seal includes a partition with a through hole for glass to pass through. An electric heater 300 and a mobile temperature measuring mechanism 200 are also installed on the slag box 400, which can further improve the yield rate of the glass.

[0017] A method for a float high-aluminum ultra-thin flexible electronic glass annealing device, during the transportation of the glass in an annealing furnace 100, a trolley carrying an infrared thermometer 204 moves horizontally to measure the temperature of the glass to obtain the lateral temperature difference of the glass, and multiple infrared thermometers 204 in the glass transportation direction are used to obtain the longitudinal temperature difference of the glass, and then the temperature of each electric heating rod 302 in the electric heater 300 is adjusted according to the lateral temperature difference and the longitudinal temperature difference of the glass to evenly cool the glass.

[0018] For example: when producing high-aluminum ultra-thin flexible glass ≤0.25mm, when the glass passes through section A, the infrared thermometer 204 detects a lateral temperature difference of 12°C, and the temperature of the heating rods in each heating chamber in section A is adjusted accordingly, that is: facing the place where the lateral temperature of the glass is high, the temperature of the heating rods is low, and facing the place where the lateral temperature of the glass is low, the temperature of the heating rods is high, and the temperature difference of each heating rod in the same heating tank 301 is required to be controlled at 6°C; when the glass passes through section B, the infrared thermometer 204 detects a lateral temperature difference of 9°C, and the temperature difference of the heating rods is controlled at about 5°C; that is, the temperature of the heating rods changes with the temperature of the glass during the entire transportation process of the annealing furnace 100 (sections A, B, C and D), and the temperature difference of the heating rods is lower than the temperature difference of the glass, which can greatly improve the glass cutting yield.

[0019] The contents described in the embodiments of this specification are merely an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms described in the embodiments. The protection scope of the present invention also extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A float high-aluminum ultra-thin flexible electronic glass annealing device, characterized in that: It comprises an annealing furnace (100), wherein a plurality of electric heaters (300) are arranged in the annealing furnace (100), and the electric heaters (300) are arranged in an alternating manner up and down; a plurality of openings are opened on the top surface of the annealing furnace (100), and a movable temperature measuring mechanism (200) is provided on the openings; The electric heater comprises a heating tank (301), a partition (303) is provided in the heating tank (301), the partition (303) divides the heating tank (301) into a plurality of heating chambers, and an electric heating rod (302) with adjustable power is provided in each heating chamber; The mobile temperature measuring mechanism (200) comprises a support frame (201) connected to the opening, a foldable and telescopic heat insulating cover (203) is arranged on the support frame (201), tracks perpendicular to the glass conveying direction are arranged on both sides of the support frame (201), an electric trolley (202) is arranged on the tracks, the middle part of the foldable and telescopic heat insulating cover (203) is fixedly connected to the electric trolley (202), and an infrared thermometer (204) is installed on the trolley.

2. The float high-aluminum ultra-thin flexible electronic glass annealing device according to claim 1, characterized in that: A jacket (205) is provided outside the infrared thermometer (204), and the jacket (205) is connected to a water inlet pipe and a drain pipe.

3. The float high-aluminum ultra-thin flexible electronic glass annealing device according to claim 1, characterized in that: The foldable and telescopic heat insulation cover (203) comprises a surface heat insulation board (206), a middle layer of asbestos heat insulation wool (207), and a bottom layer of asbestos heat insulation cloth (208).

4. The float high-aluminum ultra-thin flexible electronic glass annealing device according to claim 1, characterized in that: The foldable and telescopic heat insulation cover (203) is U-shaped.

5. A method for using the float high-aluminum ultra-thin flexible electronic glass annealing device according to any one of claims 1 to 4, characterized in that: During the transportation of glass in the annealing furnace (100), a trolley carrying an infrared thermometer (204) moves horizontally to measure the temperature of the glass to obtain the lateral temperature difference of the glass. The longitudinal temperature difference of the glass is obtained by using multiple infrared thermometers (204) in the direction of glass transportation. Then, the temperature of each electric heating rod (302) in the electric heater (300) is adjusted according to the lateral temperature difference and the longitudinal temperature difference of the glass to evenly cool the glass.

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