A thermal radiation forming device and a flexible glass production line

Abstract

The application discloses a heat radiation forming device and a flexible glass production line, and relates to the technical field of flexible glass production. The heat radiation forming device comprises an air outlet temperature control mechanism and a uniform heating nozzle. The uniform heating nozzle comprises a ventilation pipe and a uniform heating plate. One end of the ventilation pipe is connected with the air outlet temperature control mechanism, and the other end is connected with the uniform heating plate. A return air passage is arranged in the ventilation pipe. The air outlet temperature control mechanism is used for passing air flow with preset temperature, preset speed and preset flow into the ventilation pipe, so that the air flow flows out through the return air passage under the blocking action of the uniform heating plate. The uniform heating plate is used for forming a temperature field when the air flow passes, so as to perform heat radiation on the formed flexible glass ribbon. The heat radiation forming device provided by the application can realize accurate thickness adjustment during the forming process, simplify the production steps, improve the production efficiency, reduce the production cost, and is beneficial to mass production of flexible glass.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible glass production, and in particular to a thermal radiation forming device and a flexible glass production line. Background Art

[0002] Currently, with the rapid development of science and technology, flexible display technology has become a major force driving innovation in smart mobile terminals, greatly expanding the application scenarios and possibilities of various electronic devices. From wearable devices to foldable smartphones, flexible glass, with its unique lightness, thinness, and flexibility, provides users with an unprecedented visual experience and portability that is unmatched by traditional rigid display materials. Current flexible glass is generally formed by slit-drawing, and then the thickness is adjusted through methods such as chemical etching. This results in cumbersome production steps, low production efficiency, and high production costs, which seriously hinders the popularization and application of flexible glass.

[0003] In view of this, it is particularly important to design and manufacture a thermal radiation forming device and a flexible glass production line that can accurately adjust the thickness distribution and improve production efficiency, especially in the production of flexible glass. Summary of the Invention

[0004] The purpose of the present invention is to provide a thermal radiation forming device that can achieve precise thickness adjustment during the forming process, simplify production steps, improve production efficiency, reduce production costs, and facilitate mass production of flexible glass.

[0005] Another object of the present invention is to provide a flexible glass production line that can achieve precise thickness adjustment during the molding process, simplify production steps, improve production efficiency, reduce production costs, and facilitate mass production of flexible glass.

[0006] The present invention is achieved by adopting the following technical solutions.

[0007] A thermal radiation forming device includes an air outlet temperature control mechanism and a soaking nozzle. The soaking nozzle includes a ventilation pipe and a soaking plate. One end of the ventilation pipe is connected to the air outlet temperature control mechanism, and the other end is connected to the soaking plate. A return air channel is provided in the ventilation pipe. The air outlet temperature control mechanism is used to allow airflow of a preset temperature, preset speed, and preset flow rate to flow into the ventilation pipe, so that the airflow flows out through the return air channel under the blocking effect of the soaking plate. The soaking plate is used to form a temperature field when the airflow passes through, so as to radiate heat to the formed flexible glass ribbon.

[0008] Optionally, the vapor chamber and the flexible glass ribbon are arranged in parallel and spaced apart, and the distance between the vapor chamber and the flexible glass ribbon is 50 mm to 180 mm.

[0009] Optionally, the ventilation pipe comprises an outer pipe and an inner pipe, the outer pipe is sleeved outside the inner pipe, the outer pipe is arranged in a spaced manner with the inner pipe, and forms an air return channel, one end of the inner pipe is connected with the air outlet temperature control mechanism, and the other end is arranged in a spaced manner with the vapor chamber, the vapor chamber is sealingly connected to one end of the outer pipe, and the air outlet temperature control mechanism is used for passing the airflow at the preset temperature into the inner pipe, so that the airflow flows out through the air return channel under the blocking action of the vapor chamber.

[0010] Optionally, the diameter of the inner pipe gradually decreases in the air inlet direction, the diameter of the outer pipe gradually increases in the air return direction, and the cross-sectional area of the air return channel is equal everywhere in the air return direction.

[0011] Optionally, the inner pipe comprises a first flat section, a necked section and a second flat section connected in sequence, the first flat section and the second flat section are coaxially arranged, the diameter of the first flat section is greater than that of the second flat section, the first flat section is connected with the air outlet temperature control mechanism, and the necked section is arranged in an arc shape or a straight line shape.

[0012] Optionally, the diameter of the inner pipe gradually decreases and then increases in the air inlet direction, the diameter of the outer pipe gradually decreases and then increases in the air return direction, and the cross-sectional area of the air return channel is equal everywhere in the air return direction.

[0013] Optionally, the inner pipe comprises a third flat section, a tapered section, an expanding section and a fourth flat section connected in sequence, the third flat section and the fourth flat section are coaxially arranged, the diameter of the third flat section is equal to that of the fourth flat section, the third flat section is connected with the air outlet temperature control mechanism, and the tapered section and the expanding section are arranged in an arc shape or a straight line shape.

[0014] Optionally, the vapor chamber nozzle comprises a first vapor chamber nozzle and a second vapor chamber nozzle arranged in a spaced manner, the preset temperature comprises a first preset temperature and a second preset temperature, the first preset temperature is less than the second preset temperature, the air outlet temperature control mechanism is used for passing the airflow at the first preset temperature into the first vapor chamber nozzle, and is also used for passing the airflow at the second preset temperature into the second vapor chamber nozzle.

[0015] Optionally, the diameter of the inner pipe in the first vapor chamber nozzle gradually decreases in the direction from the air outlet temperature control mechanism to the vapor chamber, and the diameter of the inner pipe in the second vapor chamber nozzle gradually decreases and then increases in the direction from the air outlet temperature control mechanism to the vapor chamber.

[0016] Optionally, the number of the first vapor chamber nozzles is a plurality, the plurality of first vapor chamber nozzles are divided into two groups, the two groups of first vapor chamber nozzles are oppositely arranged on two sides of the flexible glass ribbon, and the plurality of first vapor chamber nozzles in each group are arranged in parallel and in a spaced manner; the number of the second vapor chamber nozzles is a plurality, the plurality of second vapor chamber nozzles are divided into two groups, the two groups of second vapor chamber nozzles are oppositely arranged on two sides of the flexible glass ribbon, and the plurality of second vapor chamber nozzles in each group are arranged in parallel and in a spaced manner.

[0017] Optionally, the plurality of first heat soaking nozzles in each group are arranged in one row, the plurality of second heat soaking nozzles in each group are arranged in four rows, and the one row of first heat soaking nozzles is arranged between two rows of second heat soaking nozzles and another two rows of second heat soaking nozzles.

[0018] Optionally, the thermal radiation forming device further comprises a mounting frame, and the heat soaking nozzles are mounted on the mounting frame, and the mounting frame is arranged on the side of the flexible glass ribbon.

[0019] A flexible glass production line comprises the thermal radiation forming device, and the thermal radiation forming device comprises the air outlet temperature control mechanism and the heat soaking nozzle, the heat soaking nozzle comprises the ventilation pipe and the heat soaking plate, one end of the ventilation pipe is connected with the air outlet temperature control mechanism, the other end is connected with the heat soaking plate, the ventilation pipe is provided with the air return channel, the air outlet temperature control mechanism is used for passing the airflow with the preset temperature, the preset speed and the preset flow into the ventilation pipe, so that the airflow flows out through the air return channel under the blocking action of the heat soaking plate, and the heat soaking plate is used for forming a temperature field when the airflow passes, so as to perform thermal radiation on the formed flexible glass ribbon.

[0020] The thermal radiation forming device and the flexible glass production line provided by the application have the following beneficial effects:

[0021] The heat soaking nozzle of the thermal radiation forming device comprises the ventilation pipe and the heat soaking plate, one end of the ventilation pipe is connected with the air outlet temperature control mechanism, the other end is connected with the heat soaking plate, the ventilation pipe is provided with the air return channel, the air outlet temperature control mechanism is used for passing the airflow with the preset temperature, the preset speed and the preset flow into the ventilation pipe, so that the airflow flows out through the air return channel under the blocking action of the heat soaking plate, and the heat soaking plate is used for forming a temperature field when the airflow passes, so as to perform thermal radiation on the formed flexible glass ribbon. Compared with the prior art, the thermal radiation forming device provided by the application adopts the ventilation pipe connected between the air outlet temperature control mechanism and the heat soaking plate and the air return channel arranged in the ventilation pipe, so that accurate thickness adjustment can be realized during the forming process, the production steps are simplified, the production efficiency is improved, the production cost is reduced, and the mass production of flexible glass is facilitated.

[0022] The flexible glass production line provided by the application comprises the thermal radiation forming device, accurate thickness adjustment can be realized during the forming process, the production steps are simplified, the production efficiency is improved, the production cost is reduced, and the mass production of flexible glass is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 A structure schematic diagram of the flexible glass ribbon applied to the heat radiation forming device provided by the embodiment of the present application;

[0025] Figure 2 A structure schematic diagram of the flexible glass ribbon applied to the heat radiation forming device provided by the embodiment of the present application;

[0026] Figure 3 A structure schematic diagram of the first and second heat soaking nozzles installed in the mounting frame in the heat radiation forming device provided by the embodiment of the present application;

[0027] Figure 4 A structure schematic diagram of the first heat soaking nozzle in the heat radiation forming device provided by the embodiment of the present application;

[0028] Figure 5 A sectional view of the first heat soaking nozzle in the heat radiation forming device provided by the embodiment of the present application;

[0029] Figure 6 A structure schematic diagram of the second heat soaking nozzle in the heat radiation forming device provided by the embodiment of the present application;

[0030] Figure 7 A sectional view of the second heat soaking nozzle in the heat radiation forming device provided by the embodiment of the present application.

[0031] Legend: 100-heat radiation forming device; 110-heat soaking nozzle; 111-outer tube; 112-inner tube; 1121-first straight section; 1122-necked section; 1123-second straight section; 1124-third straight section; 1125-tapered section; 1126-tapered expansion section; 1127-fourth straight section; 113-heat soaking plate; 114-return air passage; 120-mounting frame; 130-first heat soaking nozzle; 140-second heat soaking nozzle; 200-flexible glass ribbon; 210-first thick area; 220-thin area; 230-second thick area. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] The following detailed description of embodiments of the application in the drawings provided is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments of the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the application.

[0034] It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] In the description of the application, it should be noted that the terms "inner", "outer", "upper", "lower", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0036] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "connected", "mounted", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0037] Some embodiments of the application will be described in detail below with reference to the accompanying drawings. The features in the following embodiments can be combined with each other without conflict.

[0038] Please refer to Figures 1 to 7 ( Figure 5 and Figure 7 The hollow arrows in the drawings represent the direction of air flow), the embodiments of the application provide a flexible glass production line (not shown in the drawings) for producing flexible glass. It can realize accurate thickness adjustment during the forming process, simplify the production steps, improve the production efficiency, reduce the production cost, and facilitate mass production of flexible glass.

[0039] It should be noted that the flexible glass production line includes a discharging device (not shown in the figure) and the heat radiation forming device 100. The discharging device is arranged above the heat radiation forming device 100, and is used to realize discharging forming of the glass melt, so that the formed flexible glass ribbon 200 passes downward through the heat radiation forming device 100. The heat radiation forming device 100 is used to accurately control the temperature of the flexible glass ribbon 200, so as to realize accurate thickness adjustment during the forming process. Compared with the prior art, the production steps are effectively simplified, the production efficiency is improved, the production cost is reduced, and the mass production of flexible glass is facilitated.

[0040] Further, during the downward flow of the flexible glass ribbon 200, since it is not completely solidified, its flowability can be changed by adjusting the ambient temperature, so as to cool and solidify faster or slower, thereby realizing accurate thickness adjustment. Specifically, when the ambient temperature is high, the viscosity of the flexible glass ribbon 200 decreases, and the flowability increases. At this time, the flexible glass ribbon 200 will cool and solidify more slowly, and will form a thicker thickness. When the ambient temperature is low, the viscosity of the flexible glass ribbon 200 increases, and the flowability decreases. At this time, the flexible glass ribbon 200 will cool and solidify more quickly, and will form a thinner thickness. In the present application, the heat radiation forming device 100 accurately controls the ambient temperature of the flexible glass ribbon 200 by means of heat radiation, thereby accurately adjusting the thickness distribution of the flexible glass ribbon 200, which is stable and reliable, and has high production efficiency.

[0041] The heat radiation forming device 100 includes an air outlet temperature control mechanism (not shown in the figure) and a uniform heating nozzle 110. The uniform heating nozzle 110 includes a ventilation pipe (not labeled) and a uniform heating plate 113. One end of the ventilation pipe is connected with the air outlet temperature control mechanism, and the other end is connected with the uniform heating plate 113. The ventilation pipe is provided with an air return channel 114. The air outlet temperature control mechanism is used to pass a gas flow with a preset temperature, a preset speed and a preset flow into the ventilation pipe, so that the gas flow flows out through the air return channel 114 under the blocking action of the uniform heating plate 113. The uniform heating plate 113 is used to form a temperature field when the gas flow passes through, so as to perform heat radiation on the formed flexible glass ribbon 200. In this way, by changing the preset temperature of the gas flow, the temperature field formed by the uniform heating plate 113 can be quickly adjusted, so as to accurately control the ambient temperature of the flexible glass ribbon 200, and thereby accurately adjust the thickness distribution of the flexible glass ribbon 200.

[0042] Further, the ventilation pipe comprises an outer pipe 111 and an inner pipe 112, the outer pipe 111 is sleeved outside the inner pipe 112, the outer pipe 111 is arranged in a spaced manner with the inner pipe 112, and a return air passage 114 is formed. One end of the inner pipe 112 is connected with the air outlet temperature control mechanism, and the other end is arranged in a spaced manner with the vapor chamber 113. The vapor chamber 113 is sealingly connected to one end of the outer pipe 111. The air outlet temperature control mechanism is used for passing the airflow at a preset temperature into the inner pipe 112, so that the airflow flows out through the return air passage 114 under the blocking action of the vapor chamber 113. The vapor chamber 113 is used for forming a temperature field when the airflow passes through, so as to perform heat radiation on the formed flexible glass ribbon 200.

[0043] Further, the vapor chamber 113 is arranged in a parallel and spaced manner with the flexible glass ribbon 200, so that the temperature field formed on the vapor chamber 113 can uniformly radiate heat to the flexible glass ribbon 200, improve the radiation effect, and thus improve the temperature control precision and the thickness adjustment precision. In the embodiment, the flexible glass ribbon 200 flows downward along the vertical direction, and the vapor chamber 113 is arranged on a vertical plane.

[0044] Specifically, the distance between the vapor chamber 113 and the flexible glass ribbon 200 is 50mm to 180mm. A reasonable distance between the vapor chamber 113 and the flexible glass ribbon 200 can improve the uniformity of heat radiation and ensure the heat radiation effect. If the distance between the vapor chamber 113 and the flexible glass ribbon 200 is too small, the heat of the vapor chamber 113 will be directly transmitted to the flexible glass ribbon 200 through the air. Too fast heat transfer will affect the curing effect of the flexible glass ribbon 200, thereby affecting the product quality. If the distance between the vapor chamber 113 and the flexible glass ribbon 200 is too large, the heat radiation effect of the vapor chamber 113 on the flexible glass ribbon 200 is weak, and the function of precise temperature control cannot be achieved, so that the thickness distribution of the flexible glass ribbon 200 cannot be precisely adjusted.

[0045] In an optional embodiment, the vapor chamber 113 is made of silicon carbide heat material, has strong radiation capacity, and can form a stable temperature field under the action of the airflow to radiate heat to the flexible glass ribbon 200.

[0046] The air outlet temperature control mechanism comprises a fan (not shown in the figure) and a heat exchanger (not shown in the figure). The fan is connected with the inner pipe 112 through the heat exchanger. The fan is used for blowing out the airflow, and the heat exchanger is used for heat exchange of the airflow, so that the temperature of the airflow reaches the preset temperature, thereby realizing the function of passing the airflow at the preset temperature into the inner pipe 112.

[0047] Preferably, the heat radiation forming device 100 further comprises a mounting frame 120. The heat soaking nozzles 110 are mounted on the mounting frame 120, which is arranged on the side of the flexible glass ribbon 200. The mounting frame 120 can fix the position of the heat soaking nozzles 110, so that the heat soaking nozzles 110 can form a stable temperature field to uniformly radiate heat to the side of the flexible glass ribbon 200.

[0048] Further, the heat soaking nozzles 110 are multiple, and the multiple heat soaking nozzles 110 are divided into two groups. The two groups of heat soaking nozzles 110 are oppositely arranged on the two sides of the flexible glass ribbon 200. The multiple heat soaking nozzles 110 in each group are arranged in parallel and at intervals. The two groups of heat soaking nozzles 110 jointly act to simultaneously radiate heat to the two sides of the flexible glass ribbon 200, so that the same positions on the two sides of the flexible glass ribbon 200 are at the same environmental temperature, ensuring the uniformity of the thickness adjustment of the flexible glass ribbon 200, thereby ensuring the product quality.

[0049] It is worth noting that the flexible glass is divided into equal-thickness flexible glass and non-equal-thickness flexible glass. The heat radiation forming device 100 can be used to form both equal-thickness flexible glass and non-equal-thickness flexible glass. When the heat radiation forming device 100 is used to form equal-thickness flexible glass, the preset temperatures of the gas flows flowing into the multiple heat soaking nozzles 110 are the same, and the temperature fields formed by the multiple heat soaking nozzles 110 are the same, so as to apply equivalent heat radiation to the flexible glass ribbon 200, ensuring that the thickness of the flexible glass ribbon 200 is equal everywhere, thereby obtaining equal-thickness flexible glass and improving the thickness uniformity of the equal-thickness flexible glass. When the heat radiation forming device 100 is used to form non-equal-thickness flexible glass, the preset temperatures of the gas flows flowing into the multiple heat soaking nozzles 110 are different, and the temperature fields formed by the multiple heat soaking nozzles 110 are different, so as to apply non-equivalent heat radiation to the flexible glass ribbon 200, so that the thickness of the flexible glass ribbon 200 is not the same everywhere, thereby obtaining non-equal-thickness flexible glass.

[0050] In the embodiment, the thermal radiation forming device 100 is used for forming the flexible glass with different thicknesses, the heat soaking nozzle 110 includes the first heat soaking nozzle 130 and the second heat soaking nozzle 140 which are arranged at intervals, and the preset temperature includes the first preset temperature and the second preset temperature. Specifically, the first preset temperature is less than the second preset temperature, and the air temperature control mechanism is used for passing the airflow at the first preset temperature into the first heat soaking nozzle 130 and passing the airflow at the second preset temperature into the second heat soaking nozzle 140, so that the temperature field formed by the first heat soaking nozzle 130 is lower than the temperature field formed by the second heat soaking nozzle 140, and thus the thickness of the part of the flexible glass ribbon 200 corresponding to the first heat soaking nozzle 130 is less than the thickness of the part of the flexible glass ribbon 200 corresponding to the second heat soaking nozzle 140. In this way, the flexible glass ribbon 200 formed in the process of passing through the thermal radiation forming device 100 is formed into two parts with different thicknesses, so that the flexible glass with different thicknesses is obtained.

[0051] However, the above is not the only way, and in other embodiments, the heat soaking nozzle 110 can further include a third heat soaking nozzle, the preset temperature can further include a third preset temperature, the second preset temperature is less than the third preset temperature, and at this time, the air temperature control mechanism is used for passing the airflow at the third preset temperature into the third heat soaking nozzle, so that the temperature field formed by the second heat soaking nozzle 140 is lower than the temperature field formed by the third heat soaking nozzle, and thus the thickness of the part of the flexible glass ribbon 200 corresponding to the second heat soaking nozzle 140 is less than the thickness of the part of the flexible glass ribbon 200 corresponding to the third heat soaking nozzle, and then three parts of the flexible glass ribbon 200 with different thicknesses are formed; in other embodiments, the heat soaking nozzle 110 can further include a third heat soaking nozzle and a fourth heat soaking nozzle, the preset temperature can further include a third preset temperature and a fourth preset temperature, the second preset temperature is less than the third preset temperature, and the third preset temperature is less than the fourth preset temperature, and at this time, the thermal radiation forming device 100 can form four parts of the flexible glass ribbon 200 with different thicknesses; the number of the airflows at different preset temperatures passed into the heat soaking nozzle 110 and the number of the parts with different thicknesses in the flexible glass ribbon 200 are not specifically limited.

[0052] It should be noted that due to structural limitations, the air temperature output by the air outlet temperature control mechanism is within a certain temperature range, that is, the air output by the air outlet temperature control mechanism has a maximum temperature and a minimum temperature. In the case of using a conventional straight cylindrical uniform heating nozzle 110, if the air output by the air outlet temperature control mechanism has reached the minimum temperature and the thickness of the flexible glass ribbon 200 is still relatively thick (not meeting the production requirement of being thinner), the shape of the uniform heating nozzle 110 needs to be improved. Correspondingly, in the case of using a conventional straight cylindrical uniform heating nozzle 110, if the air output by the air outlet temperature control mechanism has reached the maximum temperature and the thickness of the flexible glass ribbon 200 is still relatively thin (not meeting the production requirement of being thicker), the shape of the uniform heating nozzle 110 also needs to be improved. By using the uniform heating nozzle 110 with multiple shape designs in the present scheme, the temperature adjustment range of the uniform heating plate 113 can be further increased on the basis of the air temperature range output by the original air outlet temperature control mechanism, breaking the limitations of temperature adjustment caused by the original structure, thereby increasing the temperature range of radiation on the flexible glass ribbon 200, further improving the temperature control of the flexible glass ribbon 200, and achieving precise thickness adjustment.

[0053] In an optional embodiment, the first preset temperature is relatively low (close to or equal to the minimum temperature), and the first uniform heating nozzle 130 is tapered to rapidly cool the corresponding position on the flexible glass ribbon 200, so that the flexible glass ribbon 200 is solidified faster to form a relatively thin thickness to meet the production requirement.

[0054] Specifically, in the first uniform heating nozzle 130, the diameter of the inner tube 112 gradually decreases in the air inlet direction, and the diameter of the outer tube 111 gradually increases in the air outlet direction, that is, the shape of the outer tube 111 matches the shape of the inner tube 112, and the cross-sectional area of the air return channel 114 is equal everywhere in the air outlet direction. In this way, when the air outlet temperature control mechanism is blowing air, the air flow at the first preset temperature first flows in the inner tube 112 towards the uniform heating plate 113, and in this process, since the diameter of the inner tube 112 gradually decreases, the cross-sectional area of the inner tube 112 also gradually decreases, resulting in an increase in air flow speed and a decrease in pressure (according to Bernoulli's principle, the greater the air flow speed, the smaller the pressure), so that the air flow can quickly blow to the uniform heating plate 113 to quickly remove the heat of the uniform heating plate 113, achieving rapid cooling of the flexible glass ribbon 200 and accelerating the solidification speed of the flexible glass ribbon 200 to form a relatively thin thickness; then the air flow carrying the heat of the uniform heating plate 113 flows out through the air return channel 114, and in this process, since the cross-sectional area of the air return channel 114 is equal everywhere, the air return flow uniformly flows outwards, achieving air flow leakage. In this way, the tapered first uniform heating nozzle 130 can achieve the formation of a thinner flexible glass ribbon 200 compared to the conventional straight cylindrical uniform heating nozzle 110, to meet the production requirement.

[0055] In the first uniform heating nozzle 130, the inner tube 112 comprises a first straight section 1121, a necked section 1122 and a second straight section 1123 connected in sequence. The necked section 1122 is arranged between the first straight section 1121 and the second straight section 1123. In this embodiment, the first straight section 1121, the necked section 1122 and the second straight section 1123 are integrally formed to improve the connection strength. Specifically, the first straight section 1121 is coaxially arranged with the second straight section 1123, the diameter of the first straight section 1121 is greater than the diameter of the second straight section 1123, that is, the small end of the necked section 1122 is connected with the second straight section 1123, and the large end of the necked section 1122 is connected with the first straight section 1121. The first straight section 1121 is connected with the air outlet temperature control mechanism, and the second straight section 1123 is arranged in a spaced manner with the uniform heating plate 113. The air outlet temperature control mechanism can introduce an airflow at a first preset temperature into the first straight section 1121. The airflow increases in flow rate and decreases in pressure under the action of the necked section 1122, and continues to flow into the second straight section 1123. The airflow passing through the second straight section 1123 is quickly blown to the uniform heating plate 113 and flows back through the air return channel 114 under the blocking action of the uniform heating plate 113. In this process, the uniform heating plate 113 forms a temperature field with a lower temperature under the action of the airflow at the first preset temperature, so as to quickly cool the flexible glass ribbon 200, accelerate the solidification speed of the flexible glass ribbon 200, and make the flexible glass ribbon 200 form a thinner thickness.

[0056] In this embodiment, in the first uniform heating nozzle 130, the necked section 1122 is arranged in a straight line shape. The necked section 1122 arranged in a straight line shape can stably guide the airflow when the airflow passes through, so as to uniformly increase the flow rate of the airflow, avoid the occurrence of turbulent flow, and ensure the temperature uniformity of the uniform heating plate 113. However, it is not limited to this. In other embodiments, the necked section 1122 can also be arranged in an arc shape, which can also stably guide the airflow and ensure the temperature uniformity of the uniform heating plate 113. The shape of the necked section 1122 is not limited in particular.

[0057] In an optional embodiment, the second preset temperature is higher (close to or equal to the highest temperature), and the second uniform heating nozzle 140 has a shape of gradually tapering and then gradually expanding, so as to heat or keep warm the corresponding position on the flexible glass ribbon 200, so that the flexible glass ribbon 200 is more slowly solidified, thereby forming a thicker thickness to meet the production requirements.

[0058] Specifically, in the second uniform heating nozzle 140, the diameter of the inner tube 112 first decreases and then increases in the air inlet direction, the diameter of the outer tube 111 first decreases and then increases in the air outlet direction, that is, the shape of the outer tube 111 matches the shape of the inner tube 112, and the cross-sectional area of the air return channel 114 is equal everywhere in the air outlet direction. In this way, when the air outlet temperature control mechanism is air outlet, the airflow at the second preset temperature first flows in the inner tube 112 towards the direction close to the uniform heating plate 113, and this process is divided into two stages. In the first stage, the diameter of the inner tube 112 gradually decreases, and the cross-sectional area of the inner tube 112 also gradually decreases, resulting in an increase in airflow velocity and a decrease in pressure, thereby increasing the air inlet amount. When the airflow blows to the throat of the inner tube 112 (the position with the smallest diameter in the inner tube 112), the flow rate of the airflow reaches the maximum. In the second stage, the diameter of the inner tube 112 gradually increases, and the cross-sectional area of the inner tube 112 also gradually increases, resulting in a decrease in airflow velocity and an increase in pressure, thereby prolonging the contact time of the airflow with the uniform heating plate 113, ensuring that the heat of the airflow can be stably transmitted to the uniform heating plate 113, achieving good heating effect, and then realizing the heat preservation or heating of the flexible glass ribbon 200, keeping or slowing down the solidification speed of the flexible glass ribbon 200, and making it form a relatively thick thickness. Subsequently, the airflow that has lost part of the heat flows out through the air return channel 114. In this process, since the cross-sectional area of the air return channel 114 is equal everywhere, the air return airflow flows out uniformly, realizing the outflow of the airflow. In this way, the first uniform heating nozzle 130 in the shape of gradually tapering and then gradually expanding can realize the molding of a thicker flexible glass ribbon 200 compared with the conventional uniform heating nozzle 110 in the shape of a straight cylinder, so as to meet the production requirements.

[0059] In the second heat soaking nozzle 140, the inner tube 112 comprises a third straight section 1124, a tapered section 1125, an expanding section 1126 and a fourth straight section 1127 connected in sequence. The tapered section 1125 and the expanding section 1126 are both arranged between the third straight section 1124 and the fourth straight section 1127. In this embodiment, the third straight section 1124, the tapered section 1125, the expanding section 1126 and the fourth straight section 1127 are integrally formed to improve the connection strength. Specifically, the third straight section 1124 is coaxially arranged with the fourth straight section 1127, the diameter of the third straight section 1124 is equal to the diameter of the fourth straight section 1127, that is, the large end of the tapered section 1125 is connected with the third straight section 1124, the small end of the tapered section 1125 is connected with the small end of the expanding section 1126, and the large end of the expanding section 1126 is connected with the fourth straight section 1127. The third straight section 1124 is connected with the air outlet temperature control mechanism, and the fourth straight section 1127 is arranged in a spaced manner with the heat plate 113. The air outlet temperature control mechanism can introduce the airflow at the second preset temperature into the third straight section 1124. The airflow first increases in flow rate and decreases in pressure under the action of the tapered section 1125 to increase the air inlet amount, and then decreases in flow rate and increases in pressure under the action of the expanding section 1126 to prolong the contact time of the airflow with the heat plate 113, and then continues to flow into the fourth straight section 1127. The airflow passing through the fourth straight section 1127 slowly blows to the heat plate 113 and returns through the return air passage 114 under the blocking action of the heat plate 113. In this process, the heat plate 113 forms a temperature field with a higher temperature under the action of the airflow at the second preset temperature to heat or keep warm the flexible glass ribbon 200, maintain or slow down the solidification speed of the flexible glass ribbon 200, and make the flexible glass ribbon 200 form a thicker thickness.

[0060] In this embodiment, in the second heat soaking nozzle 140, the tapered section 1125 and the expanding section 1126 are both arranged in an arc shape to form a shape similar to a gourd. The tapered section 1125 and the expanding section 1126 arranged in a gourd shape can stably guide the airflow when the airflow passes through to make the flow rate of the airflow first increase and then decrease, effectively prolong the contact time of the airflow with the heat plate 113 while ensuring the air inlet amount, improve the heating effect of the airflow on the heat plate 113, and ensure the temperature uniformity of the heat plate 113. However, it is not limited to this. In other embodiments, the tapered section 1125 and the expanding section 1126 can also be arranged in a straight line shape, which can also stably guide the airflow, improve the air inlet amount, improve the heating effect on the heat plate 113, and ensure the temperature uniformity of the heat plate 113. The shape of the tapered section 1125 and the expanding section 1126 is not specifically limited.

[0061] In the embodiment, the flexible glass ribbon 200 is divided into three regions along the width direction of the flexible glass ribbon 200, i.e., a first thick region 210, a thin region 220, and a second thick region 230. The thickness of the first thick region 210 is equal to the thickness of the second thick region 230 and greater than the thickness of the thin region 220. The width of the first thick region 210 is equal to the width of the second thick region 230 and greater than the width of the thin region 220. Specifically, the first heating nozzle 130 is used to form the thin region 220, and the second heating nozzle 140 is used to form the first thick region 210 and the second thick region 230. The first heating nozzle 130 and the second heating nozzle 140 jointly act to realize the production of the flexible glass with different thicknesses.

[0062] Further, the number of the first heating nozzles 130 is multiple. The multiple first heating nozzles 130 are divided into two groups. The two groups of first heating nozzles 130 are oppositely arranged on the two sides of the flexible glass ribbon 200. The multiple first heating nozzles 130 in each group are arranged in parallel and at intervals. The number of the second heating nozzles 140 is multiple. The multiple second heating nozzles 140 are divided into two groups. The two groups of second heating nozzles 140 are oppositely arranged on the two sides of the flexible glass ribbon 200. The multiple second heating nozzles 140 in each group are arranged in parallel and at intervals. The multiple first heating nozzles 130 and the multiple second heating nozzles 140 are both mounted on the mounting frame 120. Specifically, the multiple first heating nozzles 130 in each group are arranged in a row. The multiple second heating nozzles 140 in each group are arranged in four rows. The row of first heating nozzles 130 is arranged between the two rows of second heating nozzles 140 and the other two rows of second heating nozzles 140. The row of first heating nozzles 130 is used to form the thin region 220 of the flexible glass ribbon 200. The two rows of second heating nozzles 140 are used to form the first thick region 210 of the flexible glass ribbon 200. The other two rows of second heating nozzles 140 are used to form the second thick region 230 of the flexible glass ribbon 200.

[0063] It should be noted that the number of the air outlet temperature control mechanisms is two. One air outlet temperature control mechanism is connected with the multiple first heating nozzles 130 at the same time. The air outlet temperature control mechanism is used to blow the airflow with the first preset temperature. The other air outlet temperature control mechanism is connected with the multiple second heating nozzles 140 at the same time. The air outlet temperature control mechanism is used to blow the airflow with the second preset temperature.

[0064] The heat radiation forming device 100 provided by the embodiment of the present application, the uniform heating nozzle 110 comprises a ventilation pipe and a uniform heating plate 113, one end of the ventilation pipe is connected with an air outlet temperature control mechanism, the other end is connected with the uniform heating plate 113, the ventilation pipe is provided with an air return channel 114, the air outlet temperature control mechanism is used for passing air flow with preset temperature, preset speed and preset flow into the ventilation pipe, so that the air flow flows out through the air return channel 114 under the blocking effect of the uniform heating plate 113, the uniform heating plate 113 is used for forming a temperature field when the air flow passes, so as to perform heat radiation on the formed flexible glass ribbon 200. Compared with the prior art, the heat radiation forming device 100 provided by the present application can realize accurate thickness adjustment during the forming process, simplify the production steps, improve the production efficiency, reduce the production cost, and is beneficial to the mass production of flexible glass. The flexible glass production line has high production efficiency and high economic benefit.

[0065] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A thermal radiation molding apparatus characterized by comprising: The device comprises an air outlet temperature control mechanism and a uniform heating nozzle, the uniform heating nozzle comprises a ventilation pipe and a uniform heating plate, one end of the ventilation pipe is connected with the air outlet temperature control mechanism, the other end is connected with the uniform heating plate, a return air passage is arranged in the ventilation pipe, the air outlet temperature control mechanism is used for passing air flow with preset temperature, preset speed and preset flow into the ventilation pipe, and the uniform heating plate is used for forming a temperature field when the air flow passes through, so as to perform heat radiation on the formed flexible glass ribbon. The ventilation pipe comprises an outer pipe and an inner pipe, the outer pipe is sleeved outside the inner pipe, the outer pipe and the inner pipe are arranged in a spaced mode, and the return air passage is formed, one end of the inner pipe is connected with the air outlet temperature control mechanism, the other end is arranged in a spaced mode with the uniform heating plate, and the uniform heating plate is sealingly connected to one end of the outer pipe, the air outlet temperature control mechanism is used for passing air flow into the inner pipe, so that the air flow flows out through the return air passage under the blocking action of the uniform heating plate.

2. The thermal radiation forming apparatus of claim 1, wherein, The uniform heating plate is arranged in a parallel and spaced mode with the flexible glass ribbon, and the distance between the uniform heating plate and the flexible glass ribbon is 50mm to 180mm.

3. The thermal radiation forming apparatus of claim 1, wherein, The diameter of the inner pipe gradually decreases in the air inlet direction, the diameter of the outer pipe gradually increases in the air return direction, and the cross-sectional area of the return air passage is equal everywhere in the air return direction.

4. The thermal radiation forming apparatus of claim 3, wherein, The inner pipe comprises a first flat section, a necked section and a second flat section connected in sequence, the first flat section and the second flat section are coaxially arranged, the diameter of the first flat section is greater than that of the second flat section, the first flat section is connected with the air outlet temperature control mechanism, and the necked section is arranged in an arc shape or a straight line shape.

5. The thermal radiation molding apparatus according to claim 1, wherein The diameter of the inner pipe first decreases and then increases in the air inlet direction, the diameter of the outer pipe first decreases and then increases in the air return direction, and the cross-sectional area of the return air passage is equal everywhere in the air return direction.

6. The thermal radiation forming apparatus of claim 5, wherein, The inner pipe comprises a third flat section, a tapered section, an expanding section and a fourth flat section connected in sequence, the third flat section and the fourth flat section are coaxially arranged, the diameter of the third flat section is equal to that of the fourth flat section, the third flat section is connected with the air outlet temperature control mechanism, and the tapered section and the expanding section are arranged in an arc shape or a straight line shape.

7. The thermal radiation forming apparatus of claim 1, wherein The uniform heating nozzle comprises a first uniform heating nozzle and a second uniform heating nozzle arranged in a spaced mode, the preset temperature comprises a first preset temperature and a second preset temperature, the first preset temperature is less than the second preset temperature, the air outlet temperature control mechanism is used for passing air flow with the first preset temperature into the first uniform heating nozzle, and is also used for passing air flow with the second preset temperature into the second uniform heating nozzle.

8. The thermal radiation forming apparatus of claim 7, wherein, The diameter of the inner pipe in the first uniform heating nozzle gradually decreases from the air outlet temperature control mechanism to the uniform heating plate, and the diameter of the inner pipe in the second uniform heating nozzle first decreases and then increases from the air outlet temperature control mechanism to the uniform heating plate.

9. The thermal radiation forming apparatus of claim 7, wherein, The number of the first uniform heating nozzle is multiple, the multiple first uniform heating nozzles are divided into two groups, the two groups of first uniform heating nozzles are arranged opposite to each other on two sides of the flexible glass ribbon, and the multiple first uniform heating nozzles in each group are arranged in a parallel and spaced mode. The second number of the heat soaking nozzles is multiple, the multiple second heat soaking nozzles are divided into two groups, the two groups of second heat soaking nozzles are oppositely arranged on the two sides of the flexible glass ribbon, and the multiple second heat soaking nozzles in each group are arranged in parallel and at intervals.

10. The thermal radiation forming apparatus of claim 9, wherein, The multiple first heat soaking nozzles in each group are arranged in a row, the multiple second heat soaking nozzles in each group are arranged in four rows, and the first heat soaking nozzle in the row is arranged between the two rows of second heat soaking nozzles and the other two rows of second heat soaking nozzles.

11. The thermal radiation forming apparatus of claim 1, wherein, The heat radiation forming device further comprises a mounting frame, the heat soaking nozzles are mounted on the mounting frame, and the mounting frame is arranged on the side of the flexible glass ribbon.

12. A flexible glass production line characterized by, The heat radiation forming device comprises the heat radiation forming device according to any one of claims 1-11.

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