Cooling device for tempered glass

Abstract

The utility model belongs to the technical field of tempered glass production and processing, and particularly discloses a tempered glass cooling device which sequentially comprises an air supply mechanism, an air bellow, an air blowing mechanism and a conveying table in the air path direction, the air bellow keeps communicating with the air supply mechanism and the air blowing mechanism, and the conveying table is located at the air outlet position of the air blowing mechanism; a plurality of first air outlets are formed in the side wall of the air bellow, and the air bellow communicates with the air blowing mechanism through the first air outlets; an exhaust assembly used for exhausting air to the outside is further arranged in a communicating mode, and a second air outlet is formed in the communicating position of the exhaust assembly. The air exhaust assembly is arranged at the second air outlet in the air bellow, and the air adjusting assembly is arranged at the first air outlet, so that when the high-temperature raw glass sheet performs cold swing motion, especially variable motion, the air pressure variation borne by the upper surface and the lower surface of the glass can be maintained within a reasonable range, and the high-temperature raw glass sheet is prevented from being damaged. Therefore, the degree of stress wind spots generated on the glass surface is reduced, and the tempering quality of the glass is further guaranteed.

Description

Technical Field

[0001] This application relates to the field of tempered glass production and processing, and in particular to a cooling device for tempered glass. Background Technology

[0002] Tempered glass, as a type of safety glass, has better safety and physical properties than ordinary glass due to its high mechanical strength, good thermal stability, small glass fragments after breakage, and the absence of sharp edges on the fragments.

[0003] However, during the air-cooled tempering process, the tempering process parameters (tempering temperature, heating time, glass cooling air pressure, spray resistance, and glass spacing, etc.) and equipment effects directly lead to quality problems such as uneven stress, glass warping, and wavy surfaces on the tempered glass. In related technologies, the glass sheet after high-temperature softening is transported to the cooling component, and then continuously air-cooled by the reciprocating transport component for a cold swing motion. To ensure the tempering quality of the high-temperature glass sheet, a uniform speed is usually maintained during the cold swing motion. However, when the glass is transported to one end of the transport component, it is decelerated until it stops, and then accelerated in the opposite direction. Due to the sudden decrease in glass transport speed, under the same air supply power of the cooling component, the air pressure received on the glass surface becomes relatively larger, which significantly aggravates the stress marks on the high-temperature glass surface.

[0004] Regarding the aforementioned technologies, the applicant believes that existing tempered glass cooling devices are insufficient to control the processing problem of stress marks generated during the air cooling process, and therefore cannot meet the quality requirements for the production and processing of tempered glass. Summary of the Invention

[0005] In order to keep the wind pressure on the upper and lower surfaces of the glass sheet as uniform as possible during the cold swing motion, so as to reduce the degree of stress wind spots generated on the high-temperature glass surface, this application provides a cooling device for tempered glass.

[0006] This application provides a cooling device for tempered glass, which adopts the following technical solution:

[0007] A cooling device for tempered glass includes, in sequence along the airflow direction, an air supply mechanism, an air box, a blower mechanism, and a transport platform. The air box is connected to the air supply mechanism and the blower mechanism respectively. The transport platform is located at the air outlet of the blower mechanism. The side wall of the air box has multiple first air outlets. The air box is connected to the blower mechanism through the multiple first air outlets.

[0008] It is also connected to an exhaust assembly for venting exhaust to the outside, and the exhaust assembly has a second air outlet at the connection point.

[0009] By adopting the above technical solution, the air supply mechanism provides an air source and stably delivers the cooling airflow to the inside of the air box through the ventilation duct. The cooling airflow is first buffered and statically compressed inside the air box, and then the cooling airflow is divided to the blower mechanism through the multiple first air outlets. Finally, the blower mechanism blows the airflow evenly to the upper and lower surfaces of the glass, thereby reducing defects such as stress spots caused by uneven cooling.

[0010] Meanwhile, this application includes an exhaust system. It should be clarified that, under the premise of being able to exhaust and relieve pressure to the outside, the exhaust system can be installed on various process sections, such as the outer wall of the air box or on a single blowing component of the blower mechanism, to regulate the air pressure. This allows for further adjustment of the output air pressure based on the movement state and position of the glass on the transport platform, so that regardless of whether the glass is in uniform or non-uniform motion, the change in air pressure on the upper and lower surfaces of the glass remains within a reasonable range, thereby effectively reducing the degree of stress wind marks generated during the cold swing motion of the glass.

[0011] Preferably, the exhaust assembly is connected to the air box, and the first air outlet and the second air outlet are located on different outer walls of the air box.

[0012] By adopting the above technical solution, the exhaust component is installed on the air box, which serves as a stable carrier, which can significantly improve the stability and fault tolerance of the adjusted air pressure. Furthermore, the first air outlet and the second air outlet are located on different side walls of the air box to prevent them from interfering with each other. The first air outlet is mainly used to stably and evenly deliver cooling airflow to the glass, while the second air outlet is used to adjust the air volume of the air box when the glass is in a specific motion state. Therefore, by placing the two on different outer walls of the air box, they can perform their functions independently without affecting each other.

[0013] Preferably, the exhaust assembly includes a first bracket, a pusher, and a damper. The first bracket is fixedly connected to the outer wall of the air box. One end of the pusher is fixedly connected to the first bracket, and the end of the pusher facing away from the first bracket is rotatably connected to the damper. The damper is rotatably connected to the air box, and the pusher drives the damper to control the opening or closing of the second air outlet.

[0014] By adopting the above technical solution, the exhaust assembly is configured with mechanical linkage between the first support, the pusher, and the damper, enabling rapid and sensitive adjustment of the air volume output from the air box. Specifically, the damper is rotatably connected to the outer wall of the air box and located at the second air outlet. The extension and retraction end of the pusher allows the damper to rotate at a certain angle by pushing or pulling it back. This indirectly affects the amount of air delivered from the first air outlet to the glass surface based on the opening degree of the damper, further coordinating with the movement and position of the glass on the transport platform to obtain a relatively stable surface air pressure.

[0015] Preferably, a ventilation duct is provided between the air supply mechanism and the air box, and an air inlet is provided at the connection between the side wall of the air box and the ventilation duct. The air inlet, the first air outlet and the second air outlet are located on different outer walls of the air box, and the opening and closing direction of the damper is consistent with the air intake direction of the air inlet.

[0016] By adopting the above technical solution, the air inlet, first air outlet, and second air outlet are located on different outer walls of the air box, ensuring that they do not interfere with each other and further forming a stable airflow circulation inside the air box. Furthermore, setting the opening and closing direction of the damper (i.e., the end away from the rotating shaft when the damper rotates) to be in the same direction as the air inlet's intake direction allows the cooling airflow delivered by the air supply mechanism to enter the air box from the air inlet and, upon opening the damper to release pressure, immediately impact the back of the damper, thus buffering the flow and facilitating the rapid formation of a stable airflow circulation. This arrangement also effectively reduces the stress on the pushing component, preventing breakage and ensuring the service life of the mechanical parts.

[0017] Preferably, each of the first air outlets includes an upper air outlet and a lower air outlet, the plurality of upper air outlets are arranged side by side, the plurality of lower air outlets are arranged side by side, and the position of the upper air outlets in the vertical direction is higher than the position of the lower air outlets.

[0018] By adopting the above technical solution, the first air outlet is set as an upper air outlet and a lower air outlet arranged vertically. Then, by laterally arranging multiple sets of first air outlets, multiple sets of evenly arranged air outlets are formed on the side wall of the air box. This not only increases the air volume of the air box per unit time and improves the processing efficiency of glass cooling and tempering, but also allows the blower mechanism to simultaneously blow and cool the upper and lower surfaces of the glass on the transport platform, making the stress distribution during tempering of the upper and lower surfaces of the glass more uniform, thereby improving the quality of glass tempering.

[0019] Preferably, the inner wall of the air box is further provided with an air regulating component at the first air outlet. The air regulating component includes a second bracket, an adjusting member, and an air regulating plate. The second bracket is fixedly connected to the inner wall of the air box, the adjusting member is fixedly installed on the second bracket, and the air regulating plate is fixedly connected to the adjusting member. The adjusting member drives the air regulating plate to reciprocate along the line connecting the upper air outlet and the lower air outlet.

[0020] By adopting the above technical solution, the air volume output from the upper and lower air outlets simultaneously can be effectively adjusted by setting a second support, adjusting components, and a regulating plate. When the adjusting component drives the regulating plate to partially or completely block the upper / lower air outlets, the air volume of the lower / upper air outlets will change drastically in a short time to meet the process requirements of glass tempering. When the adjusting component moves the regulating plate between the upper and lower air outlets, the regulating plate will not affect the airflow conditions of either outlet, meaning the air volume remains essentially consistent. Simultaneously, since the glass needs to be placed on the transport platform for cooling, the lifting structure on the platform will obstruct the cooling airflow from the lower surface of the glass, resulting in inconsistent cooling rates on the upper and lower glass surfaces. This further affects the final stress distribution and tempering quality, and may even cause the glass to bend and deform. Therefore, the regulating component can effectively adjust the air pressure on the upper and lower surfaces of the glass, ensuring a uniform distribution of surface stress layers, thereby improving the mechanical strength and safety of the tempered glass.

[0021] Preferably, the blower mechanism includes a blower duct, which is connected to the first air outlet on the outer wall of the blower box. The blower duct has a blowing section along its length, and the blowing section of the blower duct connected to the upper air outlet and the blowing section of the blower duct connected to the lower air outlet are arranged opposite to each other.

[0022] By adopting the above technical solution, various types of air ducts are installed at the first air outlet, and the blowing sections of the upper and lower air ducts are arranged in a relatively opposite configuration. This effectively controls the direction and distribution of the cooling airflow, enabling rapid and uniform airflow to simultaneously blow air onto the upper and lower surfaces of the glass. This quickly removes heat from the glass surface, allowing it to cool rapidly. This rapid cooling method helps to create different cooling rates between the glass surface and its interior. The surface cools rapidly and contracts, forming compressive stress to create a uniform compressive stress layer, while the interior cools more slowly, forming tensile stress. This further improves the glass's impact resistance and thermal stability.

[0023] Preferably, the transport platform includes a plurality of conveyor rollers arranged in a row, on which glass sheets are placed, and the conveyor rollers are located between the upper air outlet and the lower air outlet, and the glass sheets are also located between the upper air outlet and the lower air outlet;

[0024] The glass sheet reciprocates on the conveyor rollers, and the conveying direction of the glass sheet is consistent with the arrangement direction of the upper air outlet or the lower air outlet.

[0025] By adopting the above technical solution, the high-temperature glass is positioned between the air ducts installed at the upper and lower air outlets, ensuring that both the upper and lower surfaces of the glass receive sufficient cooling airflow from the air ducts, further improving the cooling efficiency of the glass. Simultaneously, multiple arranged conveyor rollers stably achieve reciprocating cooling motion of the glass on its upper surface. The coordination between the conveyor rollers provides stable and efficient conveying capabilities, thereby reducing the risk of accidental breakage of the glass during transport.

[0026] Preferably, it also includes a controller electrically connected to the pusher and the adjuster, and the transport platform is also equipped with a monitor for determining the movement state and position of the glass sheet. The air duct is equipped with a wind pressure detector for measuring the wind pressure on the upper and lower surfaces of the glass sheet in real time. The controller is also electrically connected to the monitor and the wind pressure detector.

[0027] By adopting the above technical solution, a monitor is installed on the transport platform, and a wind pressure detector is installed inside the air duct, electrically connected to the controller. This allows for a direct display of the glass's motion and wind pressure data during the cold swing motion. Furthermore, by electrically connecting the pusher and adjuster components, the wind pressure on the glass surface is synchronously adjusted in real time, significantly reducing stress marks during glass tempering. In particular, when the glass is at or near the ends of the transport platform, and its surface wind pressure changes synchronously due to significant changes in its motion state, the controller can immediately acquire the data and synchronously adjust the pusher and adjuster components to stabilize the wind pressure on the glass surface within a reasonable range. This ensures that the wind pressure on the glass surface remains stable throughout the entire cold swing motion, thereby improving the tempering quality of the glass.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] Compared with related technologies, this application opens multiple second air outlets on the outer wall of the air box and installs exhaust components at the second air outlet positions to further adjust the output air pressure of the air box according to the movement state and position of the glass on the transport platform. This ensures that the change in air pressure on the upper and lower surfaces of the glass is maintained within a reasonable range, regardless of whether the glass is in uniform or non-uniform motion, thereby significantly reducing the stress wind spots generated during the cold swing motion of the glass.

[0030] This application configures the exhaust assembly as a mechanical linkage between the first bracket, the pusher, and the damper, enabling rapid and sensitive adjustment of the air volume output from the bellows. Specifically, the damper is rotatably connected to the outer wall of the bellows and located at the second air outlet. The output end of the pusher pushes or pulls the damper to rotate at a certain angle, thereby indirectly affecting the amount of air delivered from the first air outlet to the glass surface based on the opening degree of the damper. This further coordinates with the movement state and position of the glass on the transport platform to obtain a relatively stable surface air pressure. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a cooling device according to this application.

[0032] Figure 2 This is a schematic diagram of the internal structure of the bellows in this application.

[0033] Figure 3 This is a schematic diagram of the blower mechanism and transport platform in this application.

[0034] Figure 4 This is a schematic diagram of another embodiment of a cooling device according to this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Bellows; 2. Air supply mechanism; 3. Blowering mechanism; 4. Transport platform; 5. Ventilation duct; 11. First air outlet; 12. Second air outlet; 13. Exhaust assembly; 131. First support; 132. Pushing component; 133. Air damper; 111. Upper air outlet; 112. Lower air outlet; 14. Air regulating assembly; 141. Second support; 142. Adjusting component; 1421. Upper and lower gears; 1422. Transmission chain; 1423. Transmission shaft; 1424. Second drive motor; 143. Air regulating plate; 15. Air inlet; 31. Air exhaust; 311. Blowing section; 32. Air pressure detector; 41. Conveyor roller; 42. Monitor; 6. Controller; 7. Original glass sheet; 21. First base; 22. Volute; 23. Impeller; 24. Coupling; 25. First drive motor. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0037] This application discloses a cooling device for tempered glass. (Refer to...) Figure 1The system comprises, in sequence along the initial direction of the cooling airflow, an air supply mechanism 2, a ventilation duct 5, a wind box 1, a blower mechanism 3, and a transport platform 4. The air supply mechanism 2 serves as the air source, continuously providing a stable cooling airflow for subsequent processes. The ventilation duct 5 collects and guides the cooling airflow from the air supply mechanism 2 to the wind box 1. The wind box 1 buffers and depresses the delivered cooling airflow, then distributes it to the blower mechanism 3. The blower mechanism 3 precisely and effectively blows the cooling airflow onto the high-temperature glass surface on the transport platform 4. The transport platform 4 carries the glass sheet 7, which has been softened at high temperature in the heating furnace, and reciprocates within the blowing range of the blower mechanism 3 to transport the high-temperature glass sheet 7 until it is air-cooled and tempered, before transferring it to the next process via the transport platform 4.

[0038] Reference Figure 1 The air supply mechanism 2 includes a first base 21, a volute 22, an impeller 23, a coupling 24, and a first drive motor 25. The first base 21 is placed on the ground and can have a conventional support structure. The volute 22 is welded to the upper surface of the first base 21, and the impeller 23 is rotatably mounted inside the volute 22, with the axis of rotation of the impeller 23 kept horizontal. The specific shape of the volute 22 is not particularly limited, as long as it can accommodate the impeller 23 and ensure its normal operation. The impeller 23 is also not particularly limited, and different specifications and powers of impeller 23 can be selected according to the size of the glass to be processed. In this embodiment, the volute 22 is selected as a hollow cylinder, and the central axis of the volute 22 is collinear with the axis of rotation of the impeller 23. The coupling 24 and the first drive motor 25 are both fixedly mounted on the upper surface of the first base 21, and both are located on the side facing the axis of rotation of the impeller 23. The coupling 24 is located between the volute 22 and the first drive motor 25. One end of the impeller 23 shaft passes through the volute 22 housing and is coaxially fixedly connected to one end of the output shaft of the coupling 24. The other end of the output shaft of the coupling 24 is coaxially fixedly connected to the output shaft of the first drive motor 25. Thus, when the first drive motor 25 is started, it can drive the impeller 23 to rotate synchronously at high speed to generate cooling airflow for outward delivery.

[0039] Reference Figure 1In this embodiment, the perimeter of the ventilation duct 5 is shaped like a frustum of a square pyramid. The end of the ventilation duct 5 with a smaller cross-sectional area is fixedly connected to the volute 22, while the end with a larger cross-sectional area is fixedly connected to the side wall of the air box 1. By configuring the ventilation duct 5 in this way, the cooling airflow generated by the air supply mechanism 2 can be evenly and quickly diffused into the air box 1, and it helps to form a stable airflow circulation inside the air box 1. The specific structure of the ventilation duct 5 is not limited, and its shape can usually be adjusted according to the actual installation site of the cooling device, as long as the ventilation duct 5 can stably deliver the cooling airflow generated by the air supply mechanism 2 into the air box 1.

[0040] Reference Figure 1 and Figure 2 In this embodiment, the bellows 1 is horizontally arranged in both its length and width directions, and is rectangular in shape. The connection point between the ventilation duct 5 and the bellows 1 is located on the side wall at the intersection of the length and height directions of the bellows 1, and this connection point forms an air inlet 15 on the side wall of the bellows 1. The shape of the air inlet 15 matches the cross-sectional shape of the larger end of the ventilation duct 5. Multiple equally spaced first air outlets 11 are provided on the side wall of the bellows 1 opposite to the air inlet 15, and the arrangement of the first air outlets 11 is along the length direction of the bellows 1. Each first air outlet 11 includes an upper air outlet 111 and a lower air outlet 112. The line connecting the upper air outlet 111 and the lower air outlet 112 is along the height direction of the bellows 1, and the upper air outlet 111 is positioned higher than the lower air outlet 112. Both the upper air outlet 111 and the lower air outlet 112 are circular openings, and a circular tubular structure extends vertically outward from the outside of the air box 1 for docking with the blower mechanism 3.

[0041] In this embodiment, the exhaust assembly 13 is installed on the upper surface of the air box 1, and multiple second air outlets 12 are provided at the installation position, with a total of two second air outlets 12 arranged. An exhaust assembly 13 for exhausting air to the outside is also fixedly installed on the outer side of the upper surface of the air box 1 at the second air outlet 12. The exhaust assembly 13 includes a first bracket 131, a pusher 132, and a damper 133. The first bracket 131 is a cubic frame structure, and a solid plate is installed on its upper surface away from the second air outlet 12. The pusher 132, as a driving source, can be a cylinder, a hydraulic cylinder, or other driving equipment; in this embodiment, a cylinder is selected as the pusher 132. The cylinder base is fixedly welded to the inner side of the upper plate of the first bracket 131, and the cylinder is installed at an angle. The piston rod end of the cylinder is rotatably connected to the middle of the damper 133. The damper 133 is hinged to the upper wall of the air box 1 via a hinge structure. The damper 133 is configured to rotate inwards to open. The rotation axis of the damper 133 relative to the air box 1 is parallel to the rotation axis of the cylinder piston rod end, and both rotation axes are along the length of the air box 1. Therefore, when the cylinder piston rod advances, it drives the damper 133 to rotate inwards at a certain angle to open the damper 133. Similarly, when the cylinder piston rod retracts, it drives the damper 133 to rotate in the opposite direction at a certain angle to close the damper 133. The opening rotation angle of the damper 133 is preferably 0-55°, more preferably 0-49°. Within this rotation angle range, the exhaust volume is maintained within a reasonable range, effectively reducing the amount of air delivered by the air box 1 to the blower mechanism 3, while ensuring sufficient cooling airflow to the upper and lower surfaces of the glass for tempering. The outer peripheral wall of the damper 133 is also equipped with a sealing element. Similarly, the sealing element can also be installed on the peripheral wall of the air box 1 at the opening of the second air outlet 12. The sealing element can be a rubber strip or the like, which can achieve a soft seal between the damper 133 and the air box 1 at the second air outlet 12.

[0042] Meanwhile, the rotation direction of the damper 133 when opening and closing is consistent with the direction of the air inlet 15 pointing towards the first air outlet 11. On the one hand, this ensures that the cooling airflow entering the air box 1 through the air inlet 15 blows first toward the side wall of the damper 133 near the inside of the air box 1, and the damper 133 forms a certain angled slope when opening or closing to buffer the impact of the cooling airflow on the damper 133. On the other hand, the inwardly tilted damper 133 can also guide the cooling airflow, helping the cooling airflow entering through the air inlet 15 to form a stable circulating air path inside the air box 1 in a short time, thereby ensuring that the wind pressure on the upper and lower surfaces of the glass is uniform and stable.

[0043] Reference Figure 4In another embodiment, the exhaust assembly 13 has the same specific structure as described above, but it is installed on the upper end face of the ventilation duct 5. By directly relieving pressure and regulating the cooling airflow before it enters the air box 1, it indirectly affects the air pressure regulation of the upper and lower surfaces of the glass sheet 7, which is undergoing variable speed movement, by the blower mechanism 3. It should be understood that the specific structure of the exhaust assembly 13, after a simple mechanical transformation, still falls within the scope of protection of this application. Similarly, there are no strict requirements for the specific installation position of the exhaust assembly 13. As long as the air pressure output can be regulated by relieving pressure, the number and installation position of the exhaust assemblies 13 can be adjusted according to the actual production situation. For example, installing the exhaust assembly 13 at the air supply mechanism 2 or the blower mechanism 3 is still within the scope of protection of this application.

[0044] Reference Figure 1 and Figure 2 An air regulating component 14 for adjusting the airflow is installed on the inner wall of the air box 1 at the position of the first air outlet 11. The air regulating component 14 includes a second bracket 141, an adjusting member 142, and an air regulating plate 143. In this embodiment, multiple air regulating components 14 are configured to adjust the airflow of multiple horizontally arranged first air outlets 11 respectively. Specifically, a single air regulating component 14 can regulate the airflow of two adjacent first air outlets 11, that is, a single air regulating component 14 can regulate the airflow of two adjacent upper air outlets 111 and two adjacent lower air outlets 112. The second bracket 141 is fixedly installed between two adjacent first air outlets 11 along the height direction of the air box 1. The adjusting member 142 is fixedly installed on the second bracket 141 on one hand, and supports the air regulating plate 143 on the other hand, so that the air regulating plate 143 can move back and forth along the height direction of the air box 1. The adjusting component 142 can be implemented by upper and lower gears 1421, transmission chain 1422, transmission shaft 1423 and second drive motor 1424, but it includes, but is not limited to, the above-mentioned mechanical linkage structure. Other variations that can achieve the function are also acceptable.

[0045] Specifically, both upper and lower gears 1421 are mounted on the second bracket 141, with the upper gear located above the upper air outlet 111 and the lower gear located below the lower air outlet 112. The second drive motor 1424 is fixedly mounted on any outer wall of the air box 1 along its length. Similarly, the drive shaft 1423 is rotatably mounted inside the air box 1 along its length, with its rotation axis along the length of the air box 1. One end of the drive shaft 1423 passes through the side wall of the air box 1 and is fixedly connected to the output shaft of the second drive motor 1424, thus enabling the second drive motor 1424 to drive the drive shaft 1423 to rotate. Two upper gears are provided, and the length of the line connecting the two upper gears is greater than the corresponding length of the two upper air outlets 111. Two lower gears are also provided, and their installation method is the same as that of the upper gears. The two upper gears are also fixedly sleeved on the drive shaft 1423 and rotate synchronously with it. Two transmission chains 1422 are provided, respectively fitted onto the upper and lower gears 1421 on both sides and kept taut. The air regulating plate 143 is made of rectangular plate and is fixedly installed on the transmission chains 1422 on both sides. There are no fewer than two mounting points between the air regulating plate 143 and a single transmission chain 1422, and the length direction of the air regulating plate 143 is consistent with the length direction of the air box 1. The area of ​​the air regulating plate 143 is sufficient to simultaneously block both upper air outlets 111 and lower air outlets 112, and the width of the air regulating plate 143 is less than the length of the line connecting the upper air outlet 111 and the lower air outlet 112. When the second drive motor 1424 starts, it drives the transmission shaft 1423 to rotate, which in turn drives the upper and lower gears 1421 and the transmission chain 1422 to drive the transmission, indirectly causing the air regulating plate 143 to move along the height direction of the air box 1, thereby blocking the upper air outlet 111 / lower air outlet 112 to adjust the air volume. The air regulating plate 143 can only block both upper air outlets 111 or both lower air outlets 112 at the same time, thereby creating a wind pressure difference on the upper and lower surfaces of the glass to meet different processing conditions. When the air regulating assembly 14 does not need to adjust the air volume of the first air outlet 11, the air regulating plate 143 is moved between the upper air outlet 111 and the lower air outlet 112 by the adjusting member 142.

[0046] Reference Figure 1 and Figure 3The blower mechanism 3 includes multiple air ducts 31, each of which is connected and sleeved on the cylindrical structure of the first air outlet 11. These air ducts are installed according to the arrangement of the upper air outlet 111 and the lower air outlet 112, with the length of each air duct 31 aligned with the width of the air box 1. Each air duct 31 has a blowing section 311 at its end furthest from the air box 1. The blowing section 311 can be composed of multiple sets of air holes arranged in an array. The air duct 31 installed at the upper air outlet 111 blows air downwards along the height of the air box 1; while the air duct 31 installed at the lower air outlet 112 blows air upwards along the height of the air box 1. Similarly, the exhaust assembly 13 can be configured according to the number of upper and lower exhaust 31s. The upper end of the upper exhaust 31, near the air box 1, is connected to the exhaust assembly 13, while the lower end of the lower exhaust 31, near the air box 1, is also connected to the exhaust assembly 13. This configuration allows for more precise control of the output air pressure of a single exhaust 31, but requires a more detailed circuit control layout.

[0047] The transport platform 4 is located on the side of the air box 1 where the blowing mechanism 3 is located. Multiple equidistant conveyor rollers 41 are installed on the surface of the transport platform 4, all located on the same horizontal plane. In this embodiment, the conveyor rollers 41 can be selected as rubber-coated rollers, rope rollers, etc., depending on the specific processing requirements, to ensure that the glass sheet 7 can stably perform cold swinging motion on the conveyor rollers 41 without easily slipping. The conveyor rollers 41 are located between multiple upper air outlets 111 and multiple lower air outlets 112, so that the blowing parts 311 of the corresponding upper and lower air ducts 31 are all perpendicular to the upper and lower surfaces of the conveyor rollers 41, and the conveying direction of the conveyor rollers 41 is set along the length of the air box 1. When the high-temperature glass sheet 7 is transported to the transport platform 4, it reciprocates through the conveyor rollers 41 while the upper and lower air ducts 31 continuously deliver cooling airflow. Specifically, when the glass sheet 7 is located in the middle of the conveyor roller 41, the glass is in a state of uniform motion. Under the action of the cooling airflow conveyed by the air deflector 31, a relatively stable convection condition is formed, thereby air-cooling and tempering the glass. When the glass sheet 7 is conveyed to either end of the conveying direction near the conveyor table 4, the conveyor roller 41 decelerates the glass until it stops, and then changes the conveying direction to accelerate until it maintains uniform motion again.

[0048] Reference Figure 1 and Figure 3The outer casing of the air box 1 is also equipped with a controller 6. The controller 6 is electrically connected to the pusher 132 of the exhaust assembly 13 and the adjuster 142 of the blower assembly 3 via wires, data cables, etc., to perform programmed control on both. Monitors 42 are installed at both ends of the transport table 4 along the conveying direction. In this embodiment, the monitors 42 can be infrared monitors, laser monitors, visual monitors, etc., to monitor the movement position and state of the glass sheet 7 on the transport roller in real time. A wind pressure detector 32 is installed inside each air vent 31 near the blower section 311. The wind pressure detector 32 can be a conventional instrument, and the number required depends on the actual situation. It can be installed inside all upper and lower air vents 31, or only in the intermittent upper and lower air vents 31, to ensure that effective wind pressure data can be collected. Specifically, multiple wind pressure detectors 32 are installed near both ends of the transport platform 4 along the transport direction to ensure that when the glass sheet 7 undergoes variable speed movement, the wind pressure detectors 32 can accurately monitor the real-time wind pressure on the upper and lower surfaces of the glass sheet 7. Because the distance between the air blowing section 311 of the air duct 31 and the surface of the glass sheet 7 on the transport platform 4 is very close, the airflow loss when the cooling airflow is blown from the air duct 31 to the glass surface is small. Therefore, the wind pressure data obtained by the wind pressure detectors 32 located inside the air duct 31 can accurately reflect the magnitude of the wind pressure on the upper and lower surfaces of the glass sheet 7. The glass movement information monitored by the monitor 42 and the wind pressure information on the upper and lower surfaces of the glass monitored by the wind pressure detectors 32 are both fed back to the controller 6 in the form of data signals.

[0049] The implementation principle of the sleeve internal support device in this application embodiment is as follows: the air supply mechanism 2 is turned on, so that the cooling airflow passes through the ventilation duct 5, the air box 1, and the blower mechanism 3 in sequence to blow air onto the upper and lower surfaces of the transport table 4, and then the glass sheet 7 is transported to one end of the transport table 4 for reciprocating motion.

[0050] The movement of the glass sheet 7 on the transport table 4 is monitored by the monitor 42.

[0051] When the glass sheet 7 is transported to the middle of the transport platform 4, the glass sheet 7 maintains a constant speed and the pusher 132 is controlled by the controller 6 to close the damper 133.

[0052] When the glass sheet 7 is transported to both ends of the transport platform 4, the glass sheet 7 exhibits non-uniform motion; when the glass sheet 7 exhibits deceleration motion, the controller 6 controls the pusher 132 to gradually open the damper 133; when the glass sheet 7 exhibits acceleration motion, the controller 6 controls the pusher 132 to gradually close the damper 133.

[0053] At the same time, based on the wind pressure data fed back by the wind pressure detector 32 on the upper and lower surfaces of the glass sheet 7, the controller 6 controls the adjusting component 142 to drive the air regulating plate 143 to block the upper air outlet 111 or the lower air outlet 112.

[0054] Finally, after the glass sheet 7 has cooled and tempered, it is transported to the next process via the transport platform 4.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cooling device for toughening glass, comprising in sequence along the direction of air flow a wind supply mechanism (2), a wind box (1), a wind blowing mechanism (3) and a conveying table (4), the wind box (1) being arranged in communication with the wind supply mechanism (2) and the wind blowing mechanism (3) respectively, and the conveying table (4) being located at the air outlet position of the wind blowing mechanism (3), characterized in that: The side wall of the air bellow (1) is provided with a plurality of first air outlets (11), and the air bellow (1) is in communication with the air blowing mechanism (3) through the plurality of first air outlets (11); ​ Further in communication is provided with an exhaust assembly (13) for exhausting air to the outside, and the exhaust assembly (13) is provided with a second air outlet (12) at the communication position.

2. The cooling device for tempering glass according to claim 1, wherein: The exhaust assembly (13) is in communication with the air bellow (1), and the first air outlet (11) and the second air outlet (12) are located at different outer walls of the air bellow (1).

3. The cooling device for tempering glass according to claim 2, wherein: The exhaust assembly (13) includes a first bracket (131), a pusher (132) and a damper (133), the first bracket (131) is fixedly connected to the outer wall of the air bellow (1), one end of the pusher (132) is fixedly connected to the first bracket (131), the end of the pusher (132) away from the first bracket (131) is rotatably connected to the damper (133), the damper (133) is rotatably connected to the air bellow (1), and the pusher (132) drives the damper (133) to control the opening or closing of the second air outlet (12).

4. The cooling device for tempering glass according to claim 3, wherein: The air supply mechanism (2) and the air bellow (1) are in communication with a ventilation duct (5), the side wall of the air bellow (1) is provided with an air inlet (15) at the communication position of the ventilation duct (5), the air inlet (15), the first air outlet (11) and the second air outlet (12) are located at different outer walls of the air bellow (1), and the opening and closing direction of the damper (133) is consistent with the air inlet direction of the air inlet (15).

5. The cooling device for tempering glass according to claim 4, characterized in that: Each of the first air outlets (11) includes an upper air outlet (111) and a lower air outlet (112), a plurality of the upper air outlets (111) are arranged side by side, a plurality of the lower air outlets (112) are arranged side by side, and the positions of the upper air outlets (111) are higher than the positions of the lower air outlets (112) in the vertical direction.

6. The cooling device for tempering glass according to claim 5, wherein: The inner wall of the air bellow (1) is further provided with an air adjusting assembly (14) at the first air outlet (11), the air adjusting assembly (14) includes a second bracket (141), an adjusting member (142) and an air adjusting plate (143), the second bracket (141) is fixedly connected to the inner wall of the air bellow (1), the adjusting member (142) is fixedly installed on the second bracket (141), the air adjusting plate (143) is fixedly connected to the adjusting member (142), and the adjusting member (142) drives the air adjusting plate (143) to reciprocate along the connecting line direction from the upper air outlet (111) to the lower air outlet (112).

7. The cooling device for tempering glass according to claim 6, characterized in that: The air blowing mechanism (3) comprises an air row (31) which is communicated with the first air outlet (11) on the outer wall of the air bellow (1), the air row (31) is provided with an air blowing part (311) along the length direction of the air row (31), the air blowing part (311) of the air row (31) communicated with the upper air outlet (111) is opposite to the air blowing part (311) of the air row (31) communicated with the lower air outlet (112).

8. The cooling device for tempering glass according to claim 7, characterized in that: The conveying table (4) comprises a plurality of conveying roller tables (41) arranged in line, the glass raw sheet (7) is placed on the conveying roller table (41), and the conveying roller table (41) is located between the upper air outlet (111) and the lower air outlet (112), and the glass raw sheet (7) is also located between the upper air outlet (111) and the lower air outlet (112). The glass raw sheet (7) reciprocates on the conveying roller table (41), and the conveying direction of the glass raw sheet (7) is consistent with the arrangement direction of the upper air outlet (111) or the lower air outlet (112).

9. The cooling device for tempering glass according to claim 8, characterized in that: Further comprising a controller (6) which is electrically connected with the pushing member (132) and the adjusting member (142), and the conveying table (4) is further provided with a monitor (42) for determining the motion state and position of the glass raw sheet (7), the air row (31) is internally provided with an air pressure detector (32) for measuring the air pressure on the upper and lower surfaces of the glass raw sheet (7) in real time, and the controller (6) is also electrically connected with the monitor (42) and the air pressure detector (32).

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