A glass sheet heat treatment apparatus

Abstract

The application relates to a glass plate heat treatment equipment in the field of three-wheeled vehicle glass plate production, which comprises a heat treatment box and a heat treatment mechanism arranged in the heat treatment box. The heat treatment mechanism comprises a preheating assembly, a uniform heating assembly and a cooling assembly arranged in the heat treatment box. The uniform heating assembly comprises a plurality of heating rods consistent with the glass plate transmission direction. The preheating assembly comprises a preheating box and a preheating pipe. The cooling assembly comprises a cooling box and a cooling pipe. The application heats the uniform heating assembly. The uniform heating assembly adopts a plurality of heating rods which are parallelly distributed in the direction consistent with the glass plate transmission. Each heating rod works independently, the temperature of the middle part and the two side parts of the glass plate is controlled independently, the problem that the middle part of the glass plate is hot and the two side parts are cold is avoided, the overall temperature of the glass plate is more uniform, the surface stress of the glass plate is uniformly distributed, and the quality of the glass plate is improved.

Description

Technical Field

[0001] This invention relates to the field of three-wheeled automobile glass production and processing technology, specifically to a glass heat treatment equipment. Background Technology

[0002] In the production process of sunroof glass panels for tricycles, specific glass compositions must first be selected to ensure strength and transparency. Following this, pre-treatment processes such as cutting and edge grinding lay the foundation for subsequent heat treatment. Heat treatment is a crucial step in improving the mechanical properties of the glass panel. The process includes: first, rapid heating to near the softening point; then, uniform heating to ensure consistent heating across all parts of the glass panel; next, slow cooling to release internal stress; and finally, a decision on whether to perform quenching treatment based on product requirements.

[0003] As the core equipment in heat treatment, the heating furnace currently suffers from significant uneven heat distribution. The causes include uneven distribution of heating elements, imbalanced airflow circulation within the furnace, and deviations in the temperature control system. Uneven heat distribution directly leads to uneven overall glass temperature. The surface temperature of the glass changes continuously from the initial to the final stage of heating, and this uneven change directly results in uneven heat treatment of the glass sheet, causing uneven stress distribution. This makes the glass prone to defects such as deformation and cracking, reducing product yield and significantly increasing production costs. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the purpose of the present invention is to provide a glass plate heat treatment device to at least partially solve the problems mentioned in the background art.

[0005] Therefore, the purpose of this invention is to provide a glass plate heat treatment device that ensures uniform heating throughout the glass plate during the heating process.

[0006] To achieve the above objectives, the present invention proposes a glass plate heat treatment device, including a heat treatment chamber and a heat treatment mechanism disposed inside the heat treatment chamber. The heat treatment mechanism includes a preheating component, a uniform heating component, and a cooling component disposed inside the heat treatment chamber. The uniform heating component is disposed between the preheating component and the cooling component and includes multiple heating rods aligned with the glass plate conveying direction. The preheating component is disposed at the feed end of the uniform heating component and includes a preheating box and preheating pipes. The preheating box is disposed inside the feed end of the heat treatment chamber, and the preheating pipes are distributed on the upper and lower sides of the preheating box. The cooling component is disposed at the discharge end of the uniform heating component and includes a cooling box and cooling pipes. The cooling box is disposed inside the discharge end of the heat treatment chamber, and the cooling pipes are distributed on the upper and lower sides of the cooling box.

[0007] Furthermore, the multiple heating rods are spaced equally apart, a heating rod controller is provided at one end of each heating rod, and a baffle assembly, including an air supply hood and a baffle plate, is provided on the side of the heating rod away from the glass plate. The air supply hood is located on the back of the heating rod, and the baffle plate is located at the air outlet end of the air supply hood.

[0008] Furthermore, the air supply hood is equipped with a flow equalization plate inside, and the air supply hood is equipped with an angle control unit for controlling the angle of the spoiler, including a swing arm, a swing motor and a swing groove. The swing motor is located outside the heat treatment chamber, and a swing wheel is provided on the output shaft of the swing motor. The swing wheel is connected to the swing arm. The swing arm passes through the heat treatment chamber and is connected to the top of the spoiler. The swing groove is opened on both sides of the swing arm.

[0009] Furthermore, the air supply hood is located at the feed end of the uniform heating component, and the discharge end of the uniform heating component is provided with a back suction component, including a back suction hood and a back suction port. The back suction hood is located on the back of the heating rod, and the back suction port is located at the air inlet end of the back suction hood. An air delivery component is provided between the back suction hood and the air supply hood, including branch air guide pipes, transmission air pipes, and a turbo fan. The branch air guide pipes are respectively located at the air outlet end of the back suction hood and the air inlet end of the air supply hood. The turbo fan is rotatably located inside the branch air guide pipes, and the transmission air pipe is connected between the two branch air guide pipes.

[0010] Furthermore, a temperature detection mechanism is provided above the uniform heating component, including a receiver and an optical fiber temperature sensor. Multiple optical fiber temperature sensors are provided and arranged in a straight line above the heating rod. The receiver is connected to the output end of the optical fiber temperature sensor. A straight-line heat-insulating lens is provided at the bottom of the optical fiber temperature sensor. The heat-insulating lens has a hollow structure inside and is open at both ends. A blower is provided at one end of the heat-insulating lens, and an exhaust port is provided at the other end.

[0011] Furthermore, the preheating pipes are arranged in an S-shape on the upper and lower sides of the preheating box, and the spacing between the preheating pipes decreases sequentially from the feed end to the discharge end of the preheating box. Similarly, the cooling pipes are arranged in an S-shape on the upper and lower sides of the cooling box, and the spacing between the cooling pipes decreases sequentially from the feed end to the discharge end of the cooling box.

[0012] Furthermore, a waste heat utilization mechanism is provided between the preheating pipe and the cooling pipe, including a circulating pump and a circulating oil pipe. The circulating pump is installed on the circulating oil pipe and is used to drive the heat transfer oil in the circulating oil pipe to move. The circulating oil pipe is connected to the preheating pipe and the cooling pipe to form a closed oil circuit.

[0013] Furthermore, the discharge end of the preheating box is provided with a first baffle that can be adjusted up and down, and the inlet end of the cooling box is provided with a second baffle that can be adjusted up and down. Both the first baffle and the second baffle are made of heat-insulating material.

[0014] Furthermore, the heat treatment chamber is equipped with a glass plate transfer assembly, including a support wheel and a transfer motor. The support wheel is rotatably mounted inside the heat treatment chamber via a rotating rod. Each rotating rod has a sprocket at one end, and a chain is provided between adjacent sprockets. The output shaft of the transfer motor is connected to the sprocket, and the sprocket is covered with a protective shell.

[0015] Furthermore, the inner wall of the heat treatment box is provided with a heat insulation plate, the feeding end of the heat treatment box is provided with a feeding port, the discharging end of the heat treatment box is provided with a discharging port, an exhaust grate is provided at the discharging port, and an exhaust fan is provided on the inner side of the exhaust grate.

[0016] It includes a heat treatment chamber and a heat treatment mechanism disposed inside the heat treatment chamber. The heat treatment mechanism includes a preheating component, a uniform heating component, and a cooling component disposed inside the heat treatment chamber. A uniform heating component is positioned between the preheating component and the cooling component, including multiple heating rods aligned with the glass plate's transmission direction; The preheating component is set at the feed end of the uniform heating component, and includes a preheating box and preheating pipes. The preheating box is set inside the feed end of the heat treatment box, and the preheating pipes are distributed on the upper and lower sides of the preheating box. The cooling assembly is located at the discharge end of the uniform heating assembly and includes a cooling box and cooling pipes. The cooling box is located inside the discharge end of the heat treatment box, and the cooling pipes are distributed on the upper and lower sides of the cooling box.

[0017] Beneficial effects: This invention utilizes a uniform heating component with multiple heating rods arranged parallel to the direction of glass plate transport. Each heating rod operates independently, controlling the temperature of the middle and sides of the glass plate separately. This avoids the problem of the middle of the glass plate being hot while the sides are cold, resulting in more uniform overall heating and a more uniform stress distribution on the glass plate surface, thus improving the quality of the glass plate. Furthermore, before entering the heating rods, the glass plate first enters a preheating chamber, where it is preheated through preheating pipes. After heating, the glass plate enters a cooling chamber, where it is slowly cooled through cooling pipes, preventing rapid temperature changes from damaging the glass surface.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of a glass plate heat treatment device according to an embodiment of the present invention; Figure 2 This is a partial structural schematic diagram of a glass plate heat treatment apparatus according to an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a glass plate heat treatment apparatus according to an embodiment of the present invention from another perspective; Figure 4 This is a partial front cross-sectional view of a glass plate heat treatment apparatus according to an embodiment of the present invention; Figure 5 This is a partial front cross-sectional view of a glass plate heat treatment apparatus according to an embodiment of the present invention; Figure 6 This is a partial top cross-sectional view of a glass plate heat treatment apparatus according to an embodiment of the present invention; Figure 7 This is a partial left sectional view of a glass plate heat treatment apparatus according to an embodiment of the present invention; Figure 8 This is a partial left-side cross-sectional view of a glass plate heat treatment apparatus according to an embodiment of the present invention.

[0020] As shown in the figure: 1. Heat treatment chamber; 11. Glass plate transfer assembly; 111. Bearing wheel; 112. Guide wheel; 113. Transfer motor; 114. Sprocket; 115. Protective shell; 116. Rotating rod; 12. Device support; 13. Feed inlet; 14. Discharge outlet; 15. Heat insulation plate; 2. Heat treatment mechanism; 21. Preheating assembly; 211. Preheating chamber; 212. Preheating pipe; 22. First baffle; 221. Baffle adjustment seat; 23. Uniform heating assembly; 231. Heating rod controller; 232. Power supply seat; 233. Heating rod support; 234. Heating rod; 24. Turbulence assembly; 241. Air supply motor; 242. Air supply hood; 2421. Flow equalization plate; 243. Air outlet; 244. Angle control unit; 244 1. Swing arm; 2442. Protective cover; 2443. Swing wheel; 2444. Swing motor; 2445. Swing groove; 245. Spoiler; 25. Back suction assembly; 251. Back suction motor; 252. Back suction cover; 253. Back suction port; 26. Second baffle; 27. Cooling assembly; 271. Cooling box; 272. Cooling pipe; 28. Exhaust fan; 281. Exhaust grille; 29. ​​Air supply assembly; 291. Branch air duct; 292. Transmission air duct; 293. Fan blade bracket; 294. Turbine fan; 3. Waste heat utilization mechanism; 31. Circulation pump; 32. Circulation oil pipe; 4. Temperature detection mechanism; 41. Receiver; 42. Fiber optic temperature sensor; 43. Heat insulation lens; 44. Hair blower; 45. Exhaust port; 5. Glass plate. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0022] The glass plate heat treatment equipment of the present invention will now be described with reference to the accompanying drawings.

[0023] like Figures 1-4 As shown, the glass plate heat treatment equipment provided in this embodiment of the invention includes a heat treatment chamber 1 and a heat treatment mechanism 2 disposed inside the heat treatment chamber 1. The heat treatment mechanism 2 includes a preheating component 21, a uniform heating component 23 and a cooling component 27 disposed inside the heat treatment chamber 1. A device support 12 is provided at the bottom of the heat treatment chamber 1.

[0024] The uniform heating component 23 is disposed between the preheating component 21 and the cooling component 27, and includes multiple heating rods 234 that are aligned with the transmission direction of the glass plate 5.

[0025] The preheating component 21 is located at the feed end of the uniform heating component 23, and includes a preheating box 211 and a preheating pipe 212. The preheating box 211 is located inside the feed end of the heat treatment box 1, and the preheating pipe 212 is distributed on the upper and lower sides of the preheating box 211.

[0026] The cooling assembly 27 is located at the discharge end of the uniform heating assembly 23, and includes a cooling box 271 and cooling pipes 272. The cooling box 271 is located inside the discharge end of the heat treatment box 1, and the cooling pipes 272 are distributed on the upper and lower sides of the cooling box 271.

[0027] Specifically, when using the glass plate heat treatment equipment of this application, the glass plate 5 is fed into the heat treatment chamber 1 from the feed end. The glass plate 5 first enters the preheating chamber 211 and is preheated by the preheating pipe 212. Then, the glass plate 5 is transferred into the uniform heating component 23 and heated by the heating rods 234. During this process, multiple heating rods 234 are distributed in parallel in the same direction as the glass plate 5. Each heating rod 234 works independently and controls the temperature of the middle part and the two sides of the glass plate 5 separately, avoiding the problem of the middle part of the glass plate 5 being hot and the sides being cold. This makes the overall temperature rise of the glass plate 5 more uniform, the surface stress distribution of the glass plate 5 uniform, and improves the quality of the glass plate 5.

[0028] Finally, after being heated, the glass plate 5 enters the cooling chamber 271, where it is slowly cooled down through the cooling pipe 272 to prevent rapid temperature changes from damaging the glass surface. Finally, the glass plate 5 is discharged from the discharge end of the heat treatment chamber 1.

[0029] In one embodiment of the present invention, such as Figure 4 and Figure 7 As shown, multiple heating rods 234 are spaced equally apart. Heating rod supports 233 are provided on the outside of the heating rods 234. One end of the heating rod 234 is connected to the heating rod controller 231 through the power supply socket 232. Each heating rod controller 231 controls the heating power of one heating rod 234 individually. A baffle assembly 24 is provided on the side of the heating rod 234 away from the glass plate 5, including an air supply hood 242 and a baffle 245. The air supply hood 242 is located on the back of the heating rod 234, and the baffle 245 is located at the air outlet end of the air supply hood 242.

[0030] An air distribution plate 2421 is provided inside the air supply hood 242. An angle control unit 244 for controlling the angle of the baffle 245 is provided on the air supply hood 242, including a swing arm 2441, a swing motor 2444, and a swing groove 2445. The swing motor 2444 is located outside the heat treatment chamber 1 and is protected by a protective cover 2442. A swing wheel 2443 is provided on the output shaft of the swing motor 2444. The swing wheel 2443 is connected to the swing arm 2441. The swing arm 2441 passes through the heat treatment chamber 1 and is connected to the top of the baffle 245. The swing groove 2445 is opened on both sides of the swing arm 2441.

[0031] Specifically, in order to ensure that the heat is evenly distributed in the heat treatment chamber 1, the air is transmitted to the air distribution plate 2421 through the air supply hood 2422. The air distribution plate 2421 makes the air evenly distributed above the heating rod 234 and transmits it vertically downward along the air outlet 243. The air passes through the heating rod 234 and is heated to form hot air. During the downward transmission of the hot air, the swing motor 2444 drives the swing wheel 2443 to rotate at a certain angle. The swing wheel 2443 drives the swing arm 2441 and the baffle 245 to rotate at a certain angle. The baffle 245 guides the airflow below the heating plate, so that the heat is accurately and evenly distributed on the surface of the glass plate 5.

[0032] In one embodiment of the present invention, such as Figure 4 , Figure 6 and Figure 8 As shown, the air supply hood 242 is located at the feed end of the uniform heating component 23, and the discharge end of the uniform heating component 23 is provided with a back suction component 25, including a back suction hood 252 and a back suction port 253. The back suction hood 252 is located on the back of the heating rod 234, and the back suction port 253 is located at the air inlet end of the back suction hood 252.

[0033] An air supply assembly 29 is provided between the back suction hood 252 and the air supply hood 242, including a branch air guide pipe 291, a transmission air pipe 292 and a turbo fan 294. The branch air guide pipe 291 is respectively located at the air outlet end of the back suction hood 252 and the air inlet end of the air supply hood 242. The turbo fan 294 is rotatably mounted inside the branch air guide pipe 291 through the fan blade bracket 293, and the transmission air pipe 292 is connected between the two branch air guide pipes 291.

[0034] Specifically, after hot air is projected onto the surface of glass plate 5, it moves to the right along the transmission direction of glass plate 5, and then enters back suction hood 252 through back suction port 253. After passing through back suction hood 252, the air is transferred to branch air guide pipe 291. Then, back suction motor 251 drives turbo fan 294 to rotate. Turbine fan 294 transfers hot air to transmission pipe and sends it to another branch air guide pipe 291. After air supply motor 241 drives turbo fan 294 to rotate, the hot air in branch air guide pipe 291 is transferred to air supply hood 242. Finally, it is transferred to the top of heating rod 234 for reheating and reuse.

[0035] In one embodiment of the present invention, such as Figure 4 and Figure 5 As shown, a temperature detection mechanism 4 is provided above the uniform heating component 23, including a receiver 41 and an optical fiber temperature sensor 42. Multiple optical fiber temperature sensors 42 are provided and arranged in a straight line above the heating rod 234. The receiver 41 is connected to the output end of the optical fiber temperature sensor 42.

[0036] The bottom of the fiber optic temperature sensor 42 is provided with a straight heat-insulating lens 43. The heat-insulating lens 43 has a hollow structure inside and is open at both ends. A blower 44 is provided at one end of the heat-insulating lens 43 and an exhaust port 45 is provided at the other end.

[0037] Specifically, in order to monitor the temperature of the glass plate 5 surface in real time, when the glass plate 5 is heated by the heating rod 234, the fiber optic temperature sensors 42 arranged in a straight line monitor the horizontal direction of the glass plate 5 sequentially. When the temperature distribution on the surface of the glass plate 5 is uneven, the fiber optic temperature sensors 42 transmit the signal to the receiver 41 for processing. The receiver 41 transmits the signal to the heating rod controller 231 to adjust the power of the heating rod 234 so that the temperature of the surface of the glass plate 5 is adjusted to be uniform in a timely manner.

[0038] In addition, to prevent the bottom of the fiber optic temperature sensor 42 from being burned by high temperature, and to ensure that the bottom of the fiber optic temperature sensor 42 can receive light signals of different temperatures (it should be noted that the working principle of the fiber optic temperature sensor 42 is that the temperature changes the optical properties of the fiber optic or sensing material, and then the temperature value is inferred by detecting the change in the light signal), when the fiber optic temperature sensor 42 receives the light signal inside the heat treatment box 1 through the heat insulation lens 43, the heat treatment box 1 will simultaneously heat the heat insulation lens 43, thereby heating the air inside the heat insulation lens 43. At this time, the heat in the heat insulation lens 43 is discharged from the exhaust port 45 through the blower 44 on one side, and cold air is introduced from the blower 44 to cool the heat insulation lens 43, thereby preventing the bottom of the fiber optic temperature sensor 42 from being burned by high temperature, and ensuring that the bottom of the fiber optic temperature sensor 42 can receive light signals of different temperatures.

[0039] In one embodiment of the present invention, such as Figure 4 As shown, the preheating pipes 212 are arranged in an S-shape on the upper and lower sides of the preheating box 211, and the spacing between the preheating pipes 212 decreases sequentially from the feed end to the discharge end of the preheating box 211. The cooling pipes 272 are arranged in an S-shape on the upper and lower sides of the cooling box 271, and the spacing between the cooling pipes 272 decreases sequentially from the feed end to the discharge end of the cooling box 271.

[0040] A waste heat utilization mechanism 3 is provided between the preheating pipe 212 and the cooling pipe 272, including a circulating pump 31 and a circulating oil pipe 32. The circulating pump 31 is installed on the circulating oil pipe 32 and is used to drive the heat transfer oil in the circulating oil pipe 32 to move. The circulating oil pipe 32 is connected to the preheating pipe 212 and the cooling pipe 272 to form a closed oil circuit.

[0041] Specifically, during the preheating process of the glass plate 5 entering the preheating box 211, as the density of the preheating tubes 212 increases from left to right, the temperature of the glass plate 5 rises faster and faster, ensuring that the glass plate 5 has a sufficiently high preheating temperature when it enters the heating rod 234.

[0042] After the glass plate 5 leaves the heating rod 234 and is heated, it enters the cooling box 271. As the density of the cooling pipes 272 increases from left to right, the glass plate 5 cools down faster and faster, ensuring that the cooling curve of the glass plate 5 drops smoothly and ensuring the cooling rate.

[0043] Furthermore, the preheating pipe 212 and the cooling pipe 272 are connected to the circulating oil pipe 32 to form a closed oil circuit. The heat transfer oil in the oil circuit is driven to flow by the circulating pump 31, so that the heat absorbed in the cooling box 271 is transferred to the preheating box 211 for utilization, thus saving energy. In addition, when the temperature in the cooling box 271 is too high, the exhaust fan 28 at the discharge port 14 discharges a portion of the hot air through the exhaust grate 281, which not only prevents the inside of the cooling box 271 from overheating, but also allows the air inside and outside the heat treatment box 1 to exchange, ensuring the cleanliness of the gas inside the heat treatment box 1.

[0044] In one embodiment of the present invention, such as Figure 4 As shown, the discharge end of the preheating box 211 is provided with a first baffle 22 that can be adjusted up and down, and the feed end of the cooling box 271 is provided with a second baffle 26 that can be adjusted up and down. Both the first baffle 22 and the second baffle 26 are provided with baffle adjustment seats 221 at the bottom. Both the first baffle 22 and the second baffle 26 are made of heat insulation material, which is used to effectively isolate the space on both sides of the uniform heating component 23 for feeding and discharging, and reduce the temperature loss inside the uniform heating component 23.

[0045] In one embodiment of the present invention, such as Figure 2 and Figure 4As shown, the heat treatment chamber 1 is equipped with a glass plate transfer assembly 11, which includes a bearing wheel 111 and a transfer motor 113. The bearing wheel 111 is rotatably mounted inside the heat treatment chamber 1 via a rotating rod 116. The inlet and outlet ends of the bearing wheel 111 are also equipped with guide wheels 112. One end of each rotating rod 116 is equipped with a sprocket 114. A chain is installed between adjacent sprockets 114. The output shaft of the transfer motor 113 is connected to the sprocket 114. The sprocket 114 is equipped with a protective shell 115 for safety protection.

[0046] Specifically, during the transmission of the glass plate 5, the transmission motor 113 drives the sprocket 114 to rotate, and the sprocket 114 drives the bearing wheels 111 on multiple rotating rods 116 to rotate synchronously via a chain, thereby stably transmitting the glass plate 5 in the heat treatment box 1.

[0047] In one embodiment of the present invention, such as Figure 2 and Figure 4 As shown, the inner wall of the heat treatment chamber 1 is provided with a heat insulation plate 15 to keep the temperature inside and outside the heat treatment chamber 1 warm. The feeding end of the heat treatment chamber 1 is provided with a feeding port 13, and the discharging end of the heat treatment chamber 1 is provided with a discharging port 14 for the glass plate 5 to enter and exit the heat treatment chamber 1.

[0048] To clearly illustrate the above embodiments, refer to Figures 1-8 The specific working principle of the glass plate heat treatment equipment of the present invention is as follows: When the glass plate heat treatment equipment of this application is used, the glass plate 5 is fed into the heat treatment box 1 through the feed port 13. The glass plate 5 is first transported into the preheating box 211 by the bearing wheel 111. The glass plate 5 is preheated by the preheating pipe 212. Then the glass plate 5 is transported into the uniform heating component 23. The glass plate 5 is heated by the heating rod 234.

[0049] During the heating process, multiple heating rods 234 are distributed in parallel in the same direction as the glass plate 5. Each heating rod 234 works independently, controlling the temperature of the middle part and the two sides of the glass plate 5 separately. During the heating process, fiber optic temperature sensors 42 arranged in a straight line monitor the lateral side of the glass plate 5 sequentially. When the surface temperature distribution of the glass plate 5 is uneven, the fiber optic temperature sensors 42 transmit the signal to the receiver 41 for processing. The receiver 41 transmits the signal to the heating rod controller 231 to adjust the power of the heating rods 234, so that the surface temperature of the glass plate 5 is adjusted to be uniform in time, avoiding the problem of the middle of the glass plate 5 being hot and the sides being cold.

[0050] During the heating process, air is transmitted to the air distribution plate 2421 via the air supply hood 242 and then vertically downwards along the air outlet 243. The air passes through the heating rod 234 and is heated to form hot air. The hot air is transmitted downwards and, driven by the swing motor 2444, rotates the baffle 245 by a certain angle. The baffle 245 guides the airflow below the heating plate, ensuring that the heat is accurately and evenly distributed on the surface of the glass plate 5. After the hot air is projected onto the surface of the glass plate 5, it moves to the right along the transmission direction of the glass plate 5, and then enters the return suction hood 252 through the return suction port 253. The return suction hood 252 transfers the air to the air supply hood 242, where the hot air is transmitted above the heating rod 234 for reheating and reuse.

[0051] Subsequently, after being heated by the heating rod 234, the glass plate 5 enters the cooling chamber 271, where it is cooled by the cooling pipe 272. During the cooling process, the preheating pipe 212 and the cooling pipe 272 form a closed oil circuit through the connection with the circulating oil pipe 32. The heat transfer oil in the oil circuit is driven to flow by the circulating pump 31, transferring the heat absorbed in the cooling chamber 271 to the preheating chamber 211 for utilization, thus saving energy. Finally, the glass plate 5 is discharged from the discharge end of the heat treatment chamber 1.

[0052] In summary, the glass plate heat treatment equipment of this invention uses a uniform heating component with multiple heating rods distributed parallel to each other in the same direction as the glass plate. Each heating rod works independently, controlling the temperature of the middle part and both sides of the glass plate separately. This avoids the problem of the middle part of the glass plate being hot while the sides are cold, resulting in a more uniform overall temperature rise and a more uniform stress distribution on the glass plate surface, thus improving the quality of the glass plate. In addition, before entering the heating rods, the glass plate first enters a preheating chamber, where it is preheated by the preheating pipes. After heating, the glass plate enters a cooling chamber, where it is slowly cooled by the cooling pipes, preventing rapid temperature changes from damaging the glass surface.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A heat treatment device for glass plates, characterized in that, It includes a heat treatment chamber (1) and a heat treatment mechanism (2), wherein the heat treatment mechanism (2) includes a preheating component (21), a uniform heating component (23) and a cooling component (27) disposed inside the heat treatment chamber (1). The uniform heating component (23) is disposed between the preheating component (21) and the cooling component (27), and includes multiple heating rods (234) that are aligned with the transmission direction of the glass plate (5). The preheating component (21) is located at the feed end of the uniform heating component (23), and includes a preheating box (211) and a preheating tube (212). The preheating box (211) is located inside the feed end of the heat treatment box (1), and the preheating tube (212) is distributed on the upper and lower sides of the preheating box (211). The cooling assembly (27) is located at the discharge end of the uniform heating assembly (23), and includes a cooling box (271) and multiple cooling pipes (272). The cooling box (271) is located inside the discharge end of the heat treatment box (1), and the cooling pipes (272) are distributed on the upper and lower sides of the cooling box (271).

2. The glass plate heat treatment equipment according to claim 1, characterized in that, The multiple heating rods (234) are spaced equally apart. A heating rod controller (231) is provided at one end of each heating rod (234). A baffle assembly (24) is provided on the side of the heating rod (234) away from the glass plate (5), including an air supply hood (242) and a baffle plate (245). The air supply hood (242) is located on the back of the heating rod (234), and the baffle plate (245) is located at the air outlet end of the air supply hood (242).

3. The glass plate heat treatment equipment according to claim 2, characterized in that, The air supply hood (242) is provided with a flow equalization plate (2421) inside. The air supply hood (242) is provided with an angle control unit (244) for controlling the angle of the baffle plate (245), including a swing arm (2441), a swing motor (2444) and a swing groove (2445). The swing motor (2444) is located outside the heat treatment box (1). The output shaft of the swing motor (2444) is provided with a swing wheel (2443). The swing wheel (2443) is connected to the swing arm (2441). The swing arm (2441) passes through the heat treatment box (1) and is connected to the top of the baffle plate (245). The swing groove (2445) is opened on both sides of the swing arm (2441).

4. The glass plate heat treatment equipment according to claim 3, characterized in that, The air supply hood (242) is located at the feed end of the uniform heating component (23), and the discharge end of the uniform heating component (23) is provided with a back suction component (25), including a back suction hood (252) and a back suction port (253). The back suction hood (252) is located on the back of the heating rod (234), and the back suction port (253) is located at the air inlet end of the back suction hood (252). An air supply assembly (29) is provided between the back suction hood (252) and the air supply hood (242), including a branch air guide pipe (291), a transmission air pipe (292) and a turbo fan (294). The branch air guide pipe (291) is respectively located at the air outlet of the back suction hood (252) and the air inlet of the air supply hood (242). The turbo fan (294) is rotatably located inside the branch air guide pipe (291), and the transmission air pipe (292) is connected between the two branch air guide pipes (291).

5. The glass plate heat treatment equipment according to claim 1, characterized in that, A temperature detection mechanism (4) is provided above the uniform heating component (23), including a receiver (41) and an optical fiber temperature sensor (42). Multiple optical fiber temperature sensors (42) are provided and arranged in a straight line above the heating rod (234). The receiver (41) is connected to the output end of the optical fiber temperature sensor (42). The bottom of the fiber optic temperature sensor (42) is provided with a straight heat-insulating lens (43). The heat-insulating lens (43) has a hollow structure inside and the two ends of the heat-insulating lens (43) are connected. A blower (44) is provided at one end of the heat-insulating lens (43) and an exhaust port (45) is provided at the other end.

6. The glass plate heat treatment equipment according to claim 1, characterized in that, The preheating pipes (212) are arranged in an S-shape on the upper and lower sides of the preheating box (211), and the spacing of the preheating pipes (212) decreases sequentially from the feed end to the discharge end of the preheating box (211). The cooling pipes (272) are arranged in an S-shape on the upper and lower sides of the cooling box (271), and the spacing of the cooling pipes (272) decreases sequentially from the feed end to the discharge end of the cooling box (271).

7. The glass plate heat treatment equipment according to claim 6, characterized in that, A waste heat utilization mechanism (3) is provided between the preheating pipe (212) and the cooling pipe (272), including a circulating pump (31) and a circulating oil pipe (32). The circulating pump (31) is installed on the circulating oil pipe (32) and is used to drive the heat transfer oil in the circulating oil pipe (32) to move. The circulating oil pipe (32) is connected to the preheating pipe (212) and the cooling pipe (272) to form a closed oil circuit.

8. The glass plate heat treatment equipment according to claim 1, characterized in that, The discharge end of the preheating box (211) is provided with a first baffle (22) that can be adjusted up and down, and the feed end of the cooling box (271) is provided with a second baffle (26) that can be adjusted up and down. Both the first baffle (22) and the first baffle (22) are made of heat-insulating material.

9. The glass plate heat treatment equipment according to claim 1, characterized in that, The heat treatment chamber (1) is equipped with a glass plate transfer assembly (11), which includes a bearing wheel (111) and a transfer motor (113). The bearing wheel (111) is rotatably mounted inside the heat treatment chamber (1) by means of a rotating rod (116). Each rotating rod (116) has a sprocket (114) at one end, and a chain is provided between adjacent sprockets (114). The output shaft of the transfer motor (113) is connected to the sprocket (114), and the sprocket (114) is provided with a protective shell (115).

10. The glass plate heat treatment equipment according to claim 1, characterized in that, The heat treatment box (1) is provided with a heat insulation plate (15) on its inner wall. The heat treatment box (1) is provided with a feed port (13) at its feed end and a discharge port (14) at its discharge end. An exhaust grate (281) is provided at the discharge port (14) and an exhaust fan (28) is provided inside the exhaust grate (281).

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