Glass tempering treatment heating device

By combining an adjustable air outlet array and a corrugated roller conveyor system, the problems of uneven temperature distribution and uneven tempering stress in the glass tempering process are solved, achieving high-quality tempering of glass products and efficient operation of the equipment.

CN224186064UActive Publication Date: 2026-05-01GUANGDONG HUIHUA GLASS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG HUIHUA GLASS TECH CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The airflow direction of the outlet of the existing glass tempering heating device is fixed, resulting in a lack of air duct network structure in the cooling blind zone and inside the heat sealing baffle, causing process defects such as uneven temperature distribution on the glass surface, uneven tempering stress, and increased optical distortion rate.

Method used

It adopts an adjustable air outlet array and a wave-shaped roller conveyor system, combined with a three-dimensional heating cavity design with dynamic sealing function, and is equipped with a closed-loop air supply system that is directly connected to an external air pump through an independent air duct interface. It uses a composite structure of heat insulation cotton and ceramic coating, and forms a non-linear contact interface through the wave-shaped groove structure on the surface of the ceramic roller, so as to realize dynamic control of airflow direction and balanced distribution of air volume.

Benefits of technology

It significantly improves the tempering quality and process adaptability of glass products, reduces energy waste, extends equipment lifespan, and improves product qualification rate and mechanical performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a glass tempering heating device, and relates to the field of glass tempering heating devices. The device comprises a processing device, the processing device comprises a bottom frame and a transmission rack, heating mechanisms are detachably connected to the two sides of the transmission rack through bolts, a heat sealing mechanism and a mounting seat are arranged, and an adjustable air outlet head is matched with an air guide pipe network connection structure, so that the dynamic regulation and control of the airflow direction and the balanced distribution of the air quantity are realized; a dynamic sealing cavity is formed by driving a heat sealing baffle through double air cylinders, heat radiation loss is reduced through a heat insulation cotton and ceramic coating film composite structure, and meanwhile airflow stability is guaranteed by externally connecting a constant-pressure air pump through an air duct connector. The technical defects of cooling blind areas caused by air outlet head direction curing, large heat loss of a heat sealing structure, glass optical distortion caused by unbalanced air distribution and the like of a traditional device are effectively overcome, so that the product percent of pass and the technical adaptability of tempered glass are remarkably improved, and the service life of core parts of equipment is prolonged.
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Description

A glass tempering heating device Technical Field

[0001] This utility model relates to the field of glass tempering heating devices, specifically a glass tempering treatment heating device. Background Technology

[0002] Tempered glass is made by first cutting ordinary annealed glass into the required size, then heating it to a temperature close to its softening point, and then rapidly and uniformly cooling it to obtain a reinforced glass with high safety, high strength and thermal stability.

[0003] However, although current glass tempering heating devices are equipped with air outlets inside the heating furnace for airflow guidance, the airflow direction is not adjustable due to the unidirectional fixed design of the air outlets. This makes it difficult to adapt to the heating process requirements of glass with different curvatures, and it is easy to form cooling blind zones at the glass edges. Moreover, the heat-sealing baffle lacks a network structure of air ducts, resulting in uneven airflow distribution at each air outlet. This leads to significant differences in the temperature distribution on the glass surface, which may cause uneven stress distribution and increased optical distortion rate due to insufficient airflow stability. Summary of the Invention

[0004] Based on this, the purpose of this utility model is to provide a glass tempering heating device to solve the technical problems in the prior art, such as the fixed airflow direction of the air outlet causing cooling blind spots, the lack of air duct network structure inside the heat sealing baffle causing uneven airflow distribution, and the resulting differences in glass surface temperature distribution, uneven tempering stress, and increased optical distortion rate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a glass tempering heating device, comprising a processing device, the processing device comprising a base frame and a transmission frame, wherein heating mechanisms are detachably connected to both sides of the transmission frame by bolts, and two heat sealing mechanisms are respectively provided at the front and rear ends of the heating mechanism;

[0006] The heat sealing mechanism includes a mounting base, on the top of which are provided two sets of cylinders. The output end of the cylinders passes through the mounting base and is detachably connected to a heat sealing baffle via a piston rod. The inner side of the heat sealing baffle is provided with multiple mounting holes, which are connected to each other by air guide pipes. An air outlet is rotatably connected to each mounting hole, and the direction of the air outlet is adjustable.

[0007] By adopting the above technical solution and through the modular integration design of the heating mechanism and the heat sealing mechanism, a three-dimensional heating cavity with dynamic sealing function is constructed, realizing precise control of the temperature field of the entire glass product. Combined with the adjustable air outlet array and the wave-shaped roller conveyor system, a multi-dimensional thermal field coupling mechanism is formed, which effectively solves the optical distortion problem caused by uneven temperature distribution in traditional tempering furnaces, and significantly improves the tempering quality and process adaptability of large-size glass products.

[0008] Furthermore, an air duct interface is provided on one side of the heat-sealing baffle, and a flexible hose is screwed into the air duct interface, which is connected to an external air pump.

[0009] By adopting the above technical solution, the heat-sealing baffle is equipped with an independent air duct interface and directly connected to an external air pump to build a closed-loop airflow supply system. Combined with the air duct network structure, it achieves constant pressure air supply to each air outlet, avoids the phenomenon of end air volume attenuation caused by traditional air path series connection, ensures that the glass edge area obtains the same cooling intensity as the center area, and improves the flatness and mechanical properties of tempered glass.

[0010] Furthermore, the inner side of the heat-sealing baffle is provided with heat insulation cotton, and the outer side of the heat-sealing baffle is provided with a ceramic coating.

[0011] By adopting the above technical solution, the heat-sealing baffle uses a composite protective structure of inner heat insulation cotton and outer ceramic coating to form a gradient heat protection barrier: the inner heat insulation cotton blocks heat radiation conduction through a porous fiber structure, and the outer ceramic coating reduces heat accumulation by utilizing high infrared reflectivity, significantly reducing the heat load of the sealing structure, effectively delaying the aging rate of the seals under high temperature environment, and extending the service life of the equipment.

[0012] Furthermore, the bottom of the base frame is provided with four self-locking pulleys, which are arranged in a rectangular array.

[0013] By adopting the above technical solution, the base frame is equipped with a rectangular array self-locking pulley system. Through the collaborative design of high-strength alloy castings and anti-loosening buckles, the equipment can be quickly moved and positioned with high precision on the production site, meeting the needs of flexible production lines for rapid reconfiguration of process equipment, while ensuring the structural stability and operational safety of the equipment during operation.

[0014] Furthermore, a transmission frame is welded to the top of the base frame, and multiple ceramic rollers are rotatably connected to the inner side of the transmission frame. Multiple motors are installed on the back of the transmission frame, and the output ends of the multiple motors are all connected to the ceramic rollers.

[0015] By adopting the above technical solution, the transmission frame is equipped with a ceramic roller drive system, and the synchronous operation of the roller conveyor is achieved through the direct motor connection design; the wave-shaped groove structure on the surface of the ceramic roller forms a non-linear contact interface, which provides effective support while constructing a dynamic airflow channel. Combined with the centrifugal force field generated by the rotation of the roller, it significantly improves the heat convection efficiency at the bottom of the glass and eliminates the local hot spot defects caused by continuous contact in traditional planar roller conveyors.

[0016] Furthermore, the surface of the ceramic roller is provided with multiple wavy grooves.

[0017] By adopting the above technical solution, the quasi-periodic curved surface structure with wavy grooves forms a stress buffer layer through elastic deformation characteristics, effectively absorbing the local stress generated by the glass during thermal expansion and contraction; combined with the capillary conduction effect formed by the groove curved surface, it significantly reduces the risk of microcrack propagation in the quenching process, and improves the yield and impact resistance of tempered glass.

[0018] Furthermore, the heating mechanism includes a heating box, and a heat-conducting pipe is installed on the upper inner side of the heating box.

[0019] By adopting the above technical solution, a segmented heat pipe array is configured inside the heating box, and a gradient temperature field is constructed through a composite heating mode of infrared radiation and hot air convection. Combined with the heat insulation and sealing structure on the top of the box, efficient recycling of heat energy is achieved, which has better energy-saving characteristics and temperature uniformity than traditional convection heating solutions.

[0020] Furthermore, the top of the heating box is connected to two inspection covers by hinges, and the bottom of both inspection covers is provided with heat insulation cotton, and the top of the inspection covers is provided with handles.

[0021] By adopting the above technical solution, the top of the heating box is equipped with a hinged double inspection cover system. Through the coordinated design of quick-release handles and modular heat insulation components, the equipment can be opened and closed quickly and maintained efficiently. The heat insulation cotton structure at the bottom of the inspection cover reduces heat loss, improves equipment energy efficiency, and ensures the safety and convenience of maintenance operations.

[0022] In summary, the present invention has the following main advantages:

[0023] This invention, through the setting of a heat-sealing mechanism, mounting base, cylinder, piston rod, heat-sealing baffle, mounting hole, air outlet, and air duct interface, achieves dynamic control of airflow direction and balanced air volume distribution by using an adjustable air outlet in conjunction with an air duct network structure. Combined with a dual-cylinder driven heat-sealing baffle to form a dynamic sealing cavity, and employing a composite structure of heat insulation cotton and ceramic coating to reduce heat radiation loss, and ensuring airflow stability by connecting a constant pressure air pump to the air duct interface, effectively solves the process defects of traditional devices, such as the cooling blind zone caused by the solidification of the air outlet direction, large heat loss of the heat-sealing structure, and glass optical distortion caused by unbalanced air volume distribution. This significantly improves the product qualification rate and process adaptability of tempered glass, extends the service life of core components of the equipment, and reduces energy waste and defect rate caused by uneven temperature distribution. Ultimately, it achieves stable control of glass tempering quality and effective reduction of production costs.

[0024] This invention utilizes a ceramic roller with wavy grooves on its surface. The alternating concave and convex geometric features create intermittent point contact between the glass and the roller, which retains the necessary support while significantly reducing the heat conduction resistance effect. Combined with the flow channel formed by the wavy surface, it can guide the heated airflow to form a turbulent circulation at the bottom of the glass, completely eliminating the temperature stratification phenomenon that is prone to occur in traditional flat roller conveyors. Attached Figure Description

[0025] Figure 1 is a three-dimensional structural diagram of this utility model;

[0026] Figure 2 is a partial three-dimensional structural schematic diagram of the heat sealing mechanism of this utility model;

[0027] Figure 3 is an enlarged structural schematic diagram of point A in Figure 2 of this utility model;

[0028] Figure 4 is an enlarged structural schematic diagram of section B in Figure 2 of this utility model.

[0029] In the diagram: 1. Processing device; 101. Base frame; 102. Transmission frame; 103. Ceramic roller; 2. Heating mechanism; 201. Heating box; 202. Inspection cover; 203. Handle; 204. Heat conduction pipe; 3. Heat sealing mechanism; 301. Mounting base; 302. Cylinder; 303. Piston rod; 304. Heat sealing baffle; 305. Mounting hole; 306. Air outlet; 307. Air duct interface. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] A glass tempering heating device, as shown in Figures 1-4, includes a processing device 1. The processing device 1 includes a base frame 101 and a transmission frame 102. Heating mechanisms 2 are detachably connected to both sides of the transmission frame 102 by bolts. Two heat sealing mechanisms 3 are respectively provided at the front and rear ends of the heating mechanism 2.

[0032] The heat-sealing mechanism 3 includes a mounting base 301. Two sets of cylinders 302 are mounted on the top of the mounting base 301. The output ends of the cylinders 302 pass through the mounting base 301 and are detachably connected to a heat-sealing baffle 304 via piston rods 303. Multiple mounting holes 305 are provided on the inner side of the heat-sealing baffle 304, and these holes are connected by air guide pipes. An air outlet 306 is rotatably connected to each mounting hole 305, and the outlet of the air outlet 306 is adjustable. This device, through the integrated base frame 101 and transmission frame 102, forms a stable support structure, ensuring the stability of the heating and heat-sealing process. The bolt-on detachable connection design between the heating mechanism 2 and the transmission frame 102 facilitates equipment installation, maintenance, and upgrades. The two heat-sealing mechanisms 3 located at the front and rear ends respectively achieve simultaneous heat sealing of both sides of the glass, improving processing efficiency.

[0033] Referring to Figures 1, 2, 3, and 4, a duct interface 307 is provided on one side of the heat-sealing baffle 304. A flexible hose is screwed into the duct interface 307 and connected to an external air pump. The heat-sealing mechanism 3 drives the heat-sealing baffle 304 through two sets of cylinders 302, achieving precise pressure control on the glass and ensuring heat-sealing quality. The multiple mounting holes 305 and air duct design on the inner side of the heat-sealing baffle 304 allow for uniform airflow distribution, improving heat-sealing efficiency. The adjustable direction of the air outlet 306 further optimizes airflow distribution, adapting to the heat-sealing requirements of glass of different specifications.

[0034] Referring to Figures 1, 2, 3, and 4, the inner side of the heat-sealing baffle 304 is provided with heat insulation cotton, and the outer side of the heat-sealing baffle 304 is provided with a ceramic coating. The heat insulation cotton effectively reduces heat loss during the heat-sealing process and improves energy utilization efficiency. The ceramic coating enhances the high-temperature resistance of the heat-sealing baffle 304 and extends the service life of the equipment.

[0035] Referring to Figures 1, 2, 3, and 4, the bottom of the base frame 101 is equipped with four self-locking pulleys, which are arranged in a rectangular array. The design of the four self-locking pulleys allows the device to be easily moved and positioned, while the rectangular array arrangement enhances the stability during movement and facilitates the layout and adjustment of the equipment.

[0036] Referring to Figures 1, 2, 3, and 4, a transmission frame 102 is welded to the top of the base frame 101. Multiple ceramic rollers 103 are rotatably connected to the inner side of the transmission frame 102. Multiple motors are mounted on the back of the transmission frame 102, and the outputs of these motors are all connected to the ceramic rollers 103. The welding design between the transmission frame 102 and the base frame 101 enhances the structural stability. The rotatable connection design of the multiple ceramic rollers 103 ensures smooth glass transport. The motor drive method ensures controllable rotational speed of the ceramic rollers 103, adapting to different processing requirements.

[0037] Referring to Figures 1, 2, 3, and 4, the surface of the ceramic roller 103 has multiple wavy grooves. The wavy groove design increases the friction between the ceramic roller 103 and the glass, effectively preventing the glass from sliding during the transmission process and ensuring the stability of the transmission.

[0038] Referring to Figures 1, 2, 3, and 4, the heating mechanism 2 includes a heating box 201. A heat-conducting pipe 204 is installed on the upper inner side of the heating box 201. The combined design of the heating box 201 and the heat-conducting pipe 204 achieves uniform heating of the glass. The high thermal conductivity of the heat-conducting pipe 204 ensures the rapid and stable heating process.

[0039] Referring to Figures 1, 2, 3, and 4, the top of the heating chamber 201 is hinged to two inspection covers 202. Both inspection covers 202 have insulation cotton at their bottom, and handles 203 are located on their tops. The design of the inspection covers 202 facilitates cleaning and maintenance of the interior of the heating chamber 201. The insulation cotton effectively reduces heat loss and improves energy efficiency. The handles 203 facilitate opening and closing of the inspection covers 202, enhancing operational convenience.

[0040] The implementation principle of this embodiment is as follows: First, the operator places the glass plate to be processed horizontally on the surface of the ceramic roller 103 of the transmission frame 102. The curved support structure of the wave-shaped groove is used to achieve multi-point contact of the bottom of the glass. The elastic deformation characteristics of the groove absorb the impact of glass placement and automatically center and position it.

[0041] Then the motor is started to drive the ceramic roller 103 to rotate synchronously. The frictional resistance between the wave pattern on the roller surface and the glass is used to achieve smooth transmission and send the glass into the designated position inside the heating box 201.

[0042] After the glass is fully inside the heating zone, the heating mechanism 2 radiates heat to the furnace cavity through the heat pipe 204. At the same time, the heat sealing baffle 304 drives the piston rod 303 to press down vertically under the drive of the cylinder 302, forming a sealed heating cavity with the transmission frame 102. The heat insulation cotton and ceramic coating composite structure inside effectively block the leakage of heat radiation.

[0043] During the heating process, the ceramic roller 103 continuously rotates at a low speed, causing the glass to move slowly. The airflow channel formed by the wave-shaped groove guides the hot air to form a circulating convection at the bottom of the glass. At the same time, the adjustable air outlet array 306 realizes three-dimensional hot air guidance, ensuring that the upper and lower surfaces of the glass are heated simultaneously.

[0044] The air duct network structure automatically balances the air volume of each installation hole 305 air outlet, and the external air pump continuously supplies stable airflow through the air duct interface 307, avoiding the edge cooling blind zone caused by traditional unidirectional air outlet.

[0045] When it is necessary to adapt to irregularly shaped glass, the airflow angle can be adjusted by rotating the air outlet 306, and the modular bolt connection structure of the heat-sealing baffle 304 can be used to quickly change the adaptable specifications. Ultimately, it can achieve precise control of the temperature field of the entire glass and uniform distribution of tempering stress, which can significantly improve the optical performance and mechanical strength of the product.

[0046] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A glass tempering heating device, characterized in that: The device includes a processing unit (1), which includes a base frame (101) and a transmission frame (102). Heating mechanisms (2) are detachably connected to both sides of the transmission frame (102) by bolts. Two heat sealing mechanisms (3) are respectively provided at the front and rear ends of the heating mechanism (2). The heat sealing mechanism (3) includes a mounting base (301). Two sets of cylinders (302) are provided on the top of the mounting base (301). The output end of the cylinder (302) passes through the mounting base (301) and is detachably connected to a heat sealing baffle (304) through a piston rod (303). Multiple mounting holes (305) are opened on the inner side of the heat sealing baffle (304). The multiple mounting holes (305) are connected to each other by air guide pipes. An air outlet (306) is rotatably connected in the mounting hole (305). The direction of the air outlet (306) can be adjusted.

2. The glass tempering heating device according to claim 1, characterized in that: A duct interface (307) is provided on one side of the heat-sealing baffle (304), and a flexible hose is screwed into the duct interface (307), and the flexible hose is connected to an external air pump.

3. The glass tempering heating device according to claim 1, characterized in that: The heat-sealing baffle (304) is provided with heat insulation cotton on the inner side and with ceramic coating on the outer side.

4. The glass tempering heating device according to claim 1, characterized in that: The bottom of the base frame (101) is provided with four self-locking pulleys, and the four self-locking pulleys are arranged in a rectangular array.

5. The glass tempering heating device according to claim 1, characterized in that: A transmission frame (102) is welded to the top of the base frame (101). Multiple ceramic rollers (103) are rotatably connected to the inner side of the transmission frame (102). Multiple motors are provided on the back of the transmission frame (102), and the output ends of the multiple motors are all connected to the ceramic rollers (103).

6. The glass tempering heating device according to claim 5, characterized in that: The surface of the ceramic roller (103) has multiple wavy grooves.

7. The glass tempering heating device according to claim 1, characterized in that: The heating mechanism (2) includes a heating box (201), and a heat-conducting pipe (204) is installed on the upper inner side of the heating box (201).

8. The glass tempering heating device according to claim 7, characterized in that: The top of the heating box (201) is connected to two inspection covers (202) by hinges, and the bottom of the two inspection covers (202) is provided with heat insulation cotton. The top of the inspection cover (202) is provided with a handle (203).