A glass processing tempering furnace with uniform heating
By employing zoned temperature control and edge convection components in the glass processing tempering furnace, combined with a deviation correction device, the problem of uneven heating was solved, achieving uniform heating of the glass and improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHOUGUANG BLUE CRYSTAL GLASS CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-21
AI Technical Summary
Existing glass tempering furnaces suffer from uneven heating during the heating process, leading to uneven stress distribution, poor flatness, waveform deformation, and the risk of spontaneous breakage, which affects product quality and yield.
It employs an upper heating section and a lower heating section with independent temperature control, combined with an edge convection component and a correction device. By controlling the power density and hot air distribution of the heating elements in zones, it ensures that the glass is heated evenly and automatically adjusts the glass position during transportation to reduce the impact of deviation.
This achieves temperature uniformity during the glass heating process, reduces uneven stress distribution and the risk of spontaneous breakage, improves product quality and production efficiency, and increases the yield rate.
Smart Images
Figure CN224530827U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass processing technology, and in particular to a glass processing tempering furnace with uniform heating. Background Technology
[0002] The glass tempering furnace is the core equipment for manufacturing tempered glass. Its working principle is to heat the glass to near its softening point and then cool it rapidly, so that compressive stress is formed on the glass surface and tensile stress is formed inside, thereby greatly improving the strength and safety performance of the glass.
[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: Existing glass processing tempering furnaces are usually composed of a furnace body, a heating system (mostly resistance wires arranged vertically), a ceramic roller conveyor, and a cooling system. However, during the heating process, the glass edges and corners dissipate heat quickly and are closer to the heating elements, while heat accumulates in the middle of the glass, resulting in temperature differences in different areas of the glass plate. This leads to uneven stress distribution, poor flatness, waveform deformation, and even spontaneous breakage of the tempered glass, thereby affecting product quality and yield. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing glass processing tempering furnaces usually have the disadvantage of uneven heating during the processing, which leads to a decline in quality. To this end, we propose a glass processing tempering furnace with uniform heating.
[0005] To achieve the above objectives, this application adopts the following technical solution: a glass processing tempering furnace with uniform heating, comprising a furnace body: a heating chamber is provided inside the furnace body, a roller conveyor system is provided through the heating chamber, a controller is provided on one side of the roller conveyor system, the heating chamber includes an upper heating section and a lower heating section, the upper heating section and the lower heating section are each divided into at least three independently temperature-controlled heating zones in the direction perpendicular to the glass conveying, the three independently temperature-controlled heating zones are a left edge zone, a center zone and a right edge zone, the power density of the heating elements in the left edge zone and the right edge zone is greater than the power density of the heating elements in the center zone, the furnace body is also provided with an edge convection assembly, the edge convection assembly includes a hot air generator, an air supply duct and an air outlet, the air outlet is provided above the roller conveyor system and is arranged corresponding to the running trajectory of the glass plate edge.
[0006] Preferably, the left edge partition, the center partition, the right edge partition, and the edge convection component are all electrically connected to the controller.
[0007] Preferably, the heating elements of the left and right edge partitions employ a winding method with a smaller wavelength.
[0008] Preferably, the hot air generator is an electric heating element and a fan, and its inlet is connected to the interior of the heating chamber.
[0009] Preferably, the nozzle of the air outlet is a slit type, and the air outlet direction is towards the edge of the glass plate.
[0010] Preferably, both sides of the top of the roller conveyor system are fixed with fixing plates, and a sliding rod slides inside the fixing plate. One end of the sliding rod is fixed with a correction plate, and a spring is sleeved on the surface of the sliding rod. One end of the spring is fixed to the correction plate, and the other end of the spring is fixed to the fixing plate.
[0011] Preferably, auxiliary rods are fixed at both ends on one side of the correction plate, and the other end of the auxiliary rods is slidably connected to the inside of the fixed plate.
[0012] The technical effects and advantages of this utility model are as follows: In this invention, by setting up an upper heating part, a lower heating part, and an edge convection component, the glass can be heated evenly during the heating process. This can effectively reduce uneven stress distribution, poor flatness, and waveform deformation in tempered glass, thereby reducing the risk of spontaneous glass breakage and improving the quality and yield of tempered glass products.
[0013] In this invention, during the glass conveying process, the correction device at the top of the roller system can automatically adjust the position of the glass plate, ensuring stable operation of the glass plate within the heating chamber. When the glass plate deviates, the correction plate is pushed by the glass plate and slides inside the fixed plate via a slide rod. Simultaneously, it compresses or stretches the spring, generating a reverse force that pushes the glass plate back to the correct position. This not only improves the precision of glass processing but also effectively prevents uneven heating and tempering quality problems caused by glass deviation. The elastic restoring force of the spring ensures that the correction plate can continuously and stably correct the glass plate without manual intervention, greatly improving production efficiency and automation. Attached Figure Description
[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the heating zone structure of this utility model; Figure 4 This is a schematic diagram of the edge convection component structure of this utility model; Figure 5This is a schematic diagram of the correction plate structure of this utility model.
[0015] Legend: 1. Furnace body; 2. Heating chamber; 3. Roller conveyor system; 4. Upper heating section; 5. Lower heating section; 6. Controller; 7. Edge convection assembly; 8. Fixing plate; 9. Slide bar; 10. Correction plate; 11. Spring; 12. Auxiliary rod; 401. Left edge zone; 402. Center zone; 403. Right edge zone; 701. Hot air generator; 702. Air supply duct; 703. Air outlet; 7011. Electric heating element; 7012. Fan. Detailed Implementation
[0016] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.
[0017] Reference Figures 1-5 As shown, this utility model provides a technical solution: a glass processing tempering furnace with uniform heating, including a furnace body 1: a heating chamber 2 is provided inside the furnace body 1, a roller system 3 is provided through the heating chamber 2, a controller 6 is provided on one side of the roller system 3, the heating chamber 2 includes an upper heating part 4 and a lower heating part 5, the upper heating part 4 and the lower heating part 5 are each divided into at least three independently temperature-controlled heating zones in the direction perpendicular to the glass conveying, the three independently temperature-controlled heating zones are a left edge zone 401, a center zone 402 and a right edge zone 403, the power density of the heating elements in the left edge zone 401 and the right edge zone 403 is greater than the power density of the heating elements in the center zone 402, the furnace body 1 is also provided with an edge convection assembly 7, the edge convection assembly 7 includes a hot air generator 701, an air supply pipe 702 and an air outlet 703, the air outlet 703 is provided above the roller system 3 and is arranged corresponding to the running trajectory of the glass plate edge; Specifically, by setting up an upper heating section 4, a lower heating section 5, and an edge convection assembly 7, the glass can be heated evenly during the heating process. This effectively reduces uneven stress distribution, poor flatness, and waveform deformation in the tempered glass, lowers the risk of spontaneous breakage, and thus improves the quality and yield of tempered glass products. In addition, the heating elements in the left edge partition 401 and the right edge partition 403 have a high power density, which can quickly compensate for heat loss at the edges of the glass. The heating elements in the center partition 402 have a moderate power density, which avoids excessive heat accumulation. At the same time, the edge convection assembly 7 generates hot air through the hot air generator 701 and blows the hot air evenly to the edge of the glass plate through the air supply duct 702 and the slotted air outlet 703, further enhancing the heating effect of the glass edge and making the overall temperature distribution of the glass more uniform.
[0018] Reference Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment: the left edge partition 401, the center partition 402, the right edge partition 403, and the edge convection component 7 are all electrically connected to the controller 6; Specifically: By setting the left edge zone 401, center zone 402, right edge zone 403 and edge convection component 7 to be electrically connected to the controller 6, the operator can use the controller 6 to adjust the temperature of each heating zone and the hot air parameters of the edge convection component 7 according to the heating requirements of glass of different specifications and thicknesses, so as to achieve precise and intelligent temperature control. The heating parameters can be flexibly adjusted to meet the tempering processing requirements of different types of glass, improve the versatility and applicability of the equipment, and eliminate the need for frequent equipment replacement or major adjustments to the mechanical structure, thereby improving production efficiency.
[0019] Reference Figure 3 As shown, in this embodiment: the heating elements of the left edge partition 401 and the right edge partition 403 adopt a winding method with a smaller wave pitch; Specifically: By using a winding method with a smaller wave pitch for the heating elements of the left edge partition 401 and the right edge partition 403, the effective heating length of the heating wire can be increased within the same heating element length and installation space, thereby efficiently improving the power density of the edge partition heating elements without increasing the element volume.
[0020] Reference Figure 4 As shown in this embodiment: the hot air generator 701 consists of an electric heating element 7011 and a fan 7012, and its inlet is connected to the interior of the heating chamber 2; Specifically, by setting the hot air generator 701 as a combination of an electric heating element 7011 and a fan 7012, the heat generated by the electric heating element 7011 can directly heat the air entering the hot air generator 701, while the fan 7012 is responsible for delivering the heated air through the air supply duct 702 to the air outlet 703, and then blowing it towards the edge of the glass plate. This setting not only simplifies the structure, but also effectively improves the heating efficiency and temperature uniformity of the hot air, ensuring that the edge of the glass can receive sufficient heat compensation.
[0021] Reference Figure 4 As shown in this embodiment: the nozzle of the air outlet 703 is a slit type, and the air outlet direction of the air outlet 703 is towards the edge of the glass plate; Specifically: By setting the nozzle of the air outlet 703 to a slit type and directing the airflow towards the edge of the glass, it is ensured that the hot air can be blown evenly and concentratedly to the edge of the glass. This not only improves the utilization rate of the hot air but also effectively avoids heat waste, further enhancing the heating effect of the glass edge. This makes the temperature distribution of the glass more uniform during the heating process and effectively solves the problem of temperature difference caused by rapid heat dissipation at the corners of the glass.
[0022] Reference Figure 1 and Figure 5 As shown in this embodiment: both sides of the top of the roller system 3 are fixed with fixed plates 8, and a sliding rod 9 slides inside the fixed plate 8. One end of the sliding rod 9 is fixed with a correction plate 10, and a spring 11 is sleeved on the surface of the sliding rod 9. One end of the spring 11 is fixed to the correction plate 10, and the other end of the spring 11 is fixed to the fixed plate 8. Specifically, during the glass conveying process, the correction device at the top of the roller system 3 can automatically adjust the position of the glass plate, ensuring that the glass plate runs stably in the heating chamber 2. When the glass plate deviates, the correction plate 10 will be pushed by the glass plate and slide inside the fixed plate 8 through the slide rod 9. At the same time, it compresses or stretches the spring 11 to generate a reverse force, pushing the glass plate back to the correct position. This not only improves the accuracy of glass processing, but also effectively prevents uneven heating and tempering quality problems caused by glass deviation. The elastic restoring force of the spring 11 ensures that the correction plate 10 can continuously and stably correct the glass plate without manual intervention, which greatly improves production efficiency and automation.
[0023] Reference Figure 1 As shown in this embodiment: both ends of one side of the correction plate 10 are fixed with auxiliary rods 12, and the other end of the auxiliary rods 12 is slidably connected to the inside of the fixed plate 8; Specifically, by setting the structure of the auxiliary rod 12, the stability of the correction plate 10 during the sliding process is enhanced, so that the correction plate 10 can slide more smoothly when subjected to force, avoiding jamming or displacement caused by uneven force.
[0024] Working principle: The user starts the equipment via controller 6. The glass plate is conveyed into the heating chamber 2 by roller conveyor system 3. At this time, the heating zones of the upper heating section 4 and the lower heating section 5 begin to work. The heating elements of the left edge zone 401 and the right edge zone 403 have a higher power density, which can quickly compensate for the heat loss at the edges of the glass. The heating elements of the center zone 402 have a moderate power density, which avoids excessive heat accumulation and ensures a more uniform temperature distribution of the glass plate during the heating process. At the same time, the hot air generator 701 of the edge convection component 7 generates hot air, which is blown evenly onto the glass plate through the air supply duct 702 and the slotted air outlet 703. The edge of the glass plate is further enhanced to improve the heating effect. During the glass conveying process, the correction device at the top of the roller system 3 can automatically adjust the position of the glass plate. When the glass plate deviates, the correction plate 10 will be pushed by the glass plate and slide inside the fixed plate 8 through the slide rod 9, and compress or stretch the spring 11 to generate a reverse force, pushing the glass plate back to the correct position, ensuring that the glass plate runs stably in the heating chamber 2. During the entire heating process, the operator can use the controller 6 to adjust the temperature of each heating zone and the hot air parameters of the edge convection component 7 according to the heating requirements of different specifications and thicknesses of glass, so as to achieve precise and intelligent temperature control.
[0025] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A glass processing tempering furnace with uniform heating, comprising a furnace body (1): characterized in that, The furnace body (1) is provided with a heating chamber (2) inside, and a roller conveyor system (3) is provided through the heating chamber (2). A controller (6) is provided on one side of the roller conveyor system (3). The heating chamber (2) includes an upper heating part (4) and a lower heating part (5). The upper heating part (4) and the lower heating part (5) are each divided into at least three independently temperature-controlled heating zones in the direction perpendicular to the glass conveying. The three independently temperature-controlled heating zones are the left edge zone (401), the center zone (402), and the center zone (403). The furnace body (1) is equipped with an edge convection assembly (7), which includes a hot air generator (701), an air supply duct (702), and an air outlet (703). The air outlet (703) is located above the roller conveyor system (3) and is arranged in accordance with the running trajectory of the glass plate edge.
2. The glass processing tempering furnace with uniform heating according to claim 1, characterized in that: The left edge partition (401), the center partition (402), the right edge partition (403), and the edge convection component (7) are all electrically connected to the controller (6).
3. The glass processing tempering furnace with uniform heating according to claim 1, characterized in that: The heating elements of the left edge partition (401) and the right edge partition (403) adopt a winding method with a smaller wavelength.
4. The glass processing tempering furnace with uniform heating according to claim 1, characterized in that: The hot air generator (701) consists of an electric heating tube (7011) and a fan (7012), and its inlet is connected to the interior of the heating chamber (2).
5. The glass processing tempering furnace with uniform heating according to claim 1, characterized in that: The nozzle of the air outlet (703) is a slit type, and the air outlet (703) is directed towards the edge of the glass plate.
6. The glass processing tempering furnace with uniform heating according to claim 1, characterized in that: The roller conveyor system (3) has fixed plates (8) on both sides of the top. A slide rod (9) slides inside the fixed plate (8). A correction plate (10) is fixed at one end of the slide rod (9). A spring (11) is sleeved on the surface of the slide rod (9). One end of the spring (11) is fixed to the correction plate (10), and the other end of the spring (11) is fixed to the fixed plate (8).
7. The glass processing tempering furnace with uniform heating according to claim 6, characterized in that: Both ends of one side of the correction plate (10) are fixed with auxiliary rods (12), and the other end of the auxiliary rods (12) is slidably connected to the inside of the fixed plate (8).