A device for correcting localized deformation of tempered glass and glass forming equipment.

Abstract

This utility model discloses a device and glass forming equipment for correcting local deformation of tempered glass. The device includes an air grating assembly and a valve mechanism. The air grating assembly includes an air box with a first air cavity, a first air inlet, and an air outlet, both of which are connected to the first air cavity. The valve mechanism is installed at the first air inlet and / or air outlet and is used to open or close the first air inlet and / or air outlet. The first air inlet guides airflow into the first air cavity when open and blocks airflow from entering the first air cavity when closed. The air outlet guides airflow out of the first air cavity when open and blocks airflow from exiting the first air cavity when closed. This utility model independently controls the first air inlet and / or air outlet of the air box through the valve mechanism, allowing flexible adjustment of the air pressure and heat dissipation rate in localized areas of the glass, thus balancing heat dissipation on the upper and lower surfaces of the glass.

Description

Technical Field

[0001] This utility model relates to the field of tempered glass production technology, and in particular to a device for correcting local deformation of tempered glass and glass forming equipment. Background Technology

[0002] In the tempered glass production process, after the glass is heated to a certain temperature, it needs to be rapidly and uniformly cooled by forced air cooling to achieve the tempering effect. However, in actual production, due to various factors such as equipment structure, airflow distribution, and glass placement, the heat dissipation conditions vary in different parts of the glass. For example, the lower part of the glass, which is in contact with the supporting rollers, dissipates heat relatively quickly due to the thermal conductivity of the roller material; while the upper part, exposed to the air, will dissipate heat more slowly than the lower part if the air cooling airflow is not properly organized.

[0003] This phenomenon of uneven heat dissipation rates on the upper and lower sides is common. If the upper / lower part of the glass solidifies and shrinks first, while the lower / upper part remains in a high-temperature, deformable state, the shrinkage of the upper / lower part will generate downward tensile stress on the lower / upper part. The uncured glass in the lower / upper part cannot resist this stress due to plastic deformation, causing the local shape to deviate from the production plan. Localized deformation of the glass can lead to problems such as abnormal optical performance and uneven mechanical strength.

[0004] Related technologies utilize roller materials with low thermal conductivity, such as ceramic or coated rollers, to reduce heat dissipation when the lower part of the glass contacts the rollers, thereby reducing the difference in heat dissipation between the upper and lower sides of the glass. However, the thermal conductivity of ceramic or coated rollers (e.g., ceramic is approximately...) Although significantly lower than metal roller conveyors (such as stainless steel roller conveyors, approximately...) However, heat dissipation still occurs through conduction when the glass comes into contact with the roller conveyor. During long-term continuous high-volume production, the roller conveyor continuously absorbs heat and heats up, changing its thermal conductivity. This leads to an increase in heat dissipation from the lower part of the glass, and the problems of heat dissipation differences between the upper and lower sides of the glass and uneven local heat dissipation still exist. Utility Model Content

[0005] In order to overcome at least one of the defects mentioned above in the prior art, the present invention provides a device and a glass forming equipment for correcting local deformation of tempered glass. The device independently controls the first air inlet and / or air outlet of the air box through a valve mechanism, which can flexibly adjust the air pressure and heat dissipation speed in the local area of ​​the glass, and avoid deformation problems such as local convexity, concaveness or edge warping caused by uneven heat dissipation in the glass.

[0006] The technical solution adopted by this utility model to solve its problem is: A device for correcting localized deformation of tempered glass, comprising, A wind grid assembly includes a wind box, the wind box having a first air cavity, a first air inlet and an air outlet, the first air inlet and the air outlet being connected to the first air cavity; A valve mechanism is installed at the first air inlet and / or the air outlet and is used to open or close the first air inlet and / or the air outlet; the first air inlet is used to guide airflow into the first air cavity when it is open and to block airflow from entering the first air cavity when it is closed; the air outlet is used to guide airflow out of the first air cavity when it is open and to block airflow from being discharged from the first air cavity when it is closed.

[0007] Furthermore, the valve mechanism includes a first valve assembly, which is installed at the first air inlet and / or the air outlet. The first valve assembly includes a first driving member and a first stop member. An air inlet channel is provided in the first air inlet, and an air outlet channel is provided in the air outlet. The first driving member is used to drive the first stop member to move closer to or away from the air inlet channel and / or the air outlet channel. The first stop member is used to block the air inlet channel and / or the air outlet channel after moving closer to the air inlet channel and / or the air outlet channel, and to open the air inlet channel and / or the air outlet channel after moving away from the air inlet channel and / or the air outlet channel.

[0008] Furthermore, the valve mechanism includes a second valve assembly, which is installed at the first air inlet. The second valve assembly includes a second driving member and a second stop member. An air inlet channel is provided in the first air inlet. The second driving member is used to drive the second stop member to move closer to or away from the air inlet channel. The second stop member is used to block the air inlet channel after moving closer to it, and to open the air inlet channel after moving away from it.

[0009] Furthermore, the air inlet channel includes a first connecting section, a second connecting section, and a first connecting section, with both ends of the second connecting section connected to the first connecting section and the first connecting section, respectively; the first connecting section is connected to the first air cavity, and the first connecting section is used to connect to the air inlet duct; The first air inlet is further provided with a first installation channel, which extends through the side of the second connecting section; the first stop or the second stop is installed in the first installation channel and is used to move along the first installation channel under the drive of the first drive or the second drive to approach or move away from the second connecting section; the first stop or the second stop is used to block the second connecting section after approaching it, so as to isolate the first connecting section from the first connecting section.

[0010] Furthermore, the first stop member includes a first body extending along the first mounting channel, and the power output end of the first drive member is connected to the end of the first body; or, The second stop includes a second body extending along the first mounting channel, and the power output end of the second drive member is connected to the end of the second body. The second body has a pressure relief channel extending along the first mounting channel to one end of the second body. The second body has a pressure relief port on the side facing the first connecting section, and the pressure relief port communicates with the pressure relief channel. The pressure relief port is used to communicate with the first connecting section when the second body blocks the second connecting section.

[0011] Furthermore, the air outlet duct includes a third connecting section, a fourth connecting section, and a second connecting section, with both ends of the fourth connecting section connected to the third connecting section and the second connecting section, respectively; the third connecting section is connected to the first air cavity; The air outlet is also provided with a second installation channel, which penetrates the side of the fourth connecting section; the first stop is installed in the second installation channel and is used to move along the second installation channel under the drive of the first drive member to approach or move away from the fourth connecting section; the first stop is used to block the fourth connecting section after approaching it, so as to isolate the third connecting section from the second connecting section.

[0012] Furthermore, the first stop includes a first body that extends along the second mounting channel, and the power output end of the first drive member is connected to the end of the first body.

[0013] Furthermore, the air box is provided with a plurality of first air inlets; the air grid assembly also includes a plurality of air inlet pipes, the air outlets of the plurality of air inlet pipes being connected one-to-one with the air inlet ends of the plurality of first air inlets, and the air inlet ends of the air inlet pipes being used to connect to the fan.

[0014] Furthermore, the air box is provided with a plurality of air outlets, and the air grid assembly includes a plurality of air nozzles, which are installed on the air box and are configured to correspond one-to-one with the plurality of air outlets; the air nozzles are used to provide airflow to the glass surface.

[0015] Furthermore, the nozzle includes a housing, which has a second air cavity, a second air inlet, and a plurality of air holes. The air holes and the second air inlet are both connected to the second air cavity. The second air inlet is installed at the air outlet. The second air inlet is used to guide the airflow of the first air cavity into the second air cavity, and the plurality of air holes are used to guide the airflow of the second air cavity to blow toward the glass surface.

[0016] Furthermore, the wind grid assembly includes a plurality of wind boxes, which extend along a first direction and are spaced apart along a second direction; a plurality of air nozzles are spaced apart on the wind boxes along the first direction, and the air nozzles at corresponding positions on each wind box are connected along the second direction.

[0017] A glass forming apparatus includes a machine body, a conveyor roller conveyor, and a device for correcting local deformation of tempered glass as described above. The machine body is provided with a heating section and a forming section, and the conveyor roller conveyor passes through the heating section and the forming section. The device for correcting local deformation of tempered glass is disposed in the forming section. The heating section is used to heat the glass to a softening temperature, the forming section is used to temper and form the glass, and the device for correcting local deformation of tempered glass is used to correct local deformation during the glass tempering process.

[0018] In summary, the device and glass forming equipment for correcting local deformation of tempered glass provided by this utility model have the following technical effects: 1) In the device for correcting local deformation of tempered glass according to this utility model, when the air outlet on the wind box corresponding to the glass deformation area is closed by the valve mechanism, the air volume of the air outlet corresponding to the glass deformation area can be reduced. When the first air inlet on the wind box corresponding to these air outlets is closed by the valve mechanism, the air volume of the wind box in these air outlet areas can be reduced, thereby reducing the air volume of the air outlet corresponding to the glass deformation area.

[0019] Reducing the airflow from the vent can suppress the heat dissipation rate of the glass on the side that dissipates heat faster, making the heat dissipation of the upper and lower surfaces of the glass more balanced. This corrects deformation problems such as local convexity, concavity, or edge warping caused by uneven heat dissipation, ensuring that the deformation of the glass is reduced to the allowable range, and effectively improving the quality of tempered glass products and production efficiency.

[0020] 2) In the glass forming equipment of this utility model, the glass is continuously conveyed from heating to forming through the conveying roller, and the local shape of the glass can be corrected during the glass tempering process, which greatly reduces the rework rate and scrap rate caused by deformation defects. Attached Figure Description

[0021] Figure 1 This is a top view of the lower air grille assembly of this utility model embodiment when it is facing the glass and air is blowing. Figure 2 This is a schematic diagram of the structure of the upper and lower air grille components of this utility model when they are blowing air towards the glass simultaneously, according to an embodiment of the present utility model. Figure 3This is a schematic diagram of the structure of the air grille assembly (valve mechanism installed at the first air inlet) according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the air grille assembly (valve mechanism installed at the air outlet) according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the structure of the wind grid assembly according to an embodiment of the present utility model.

[0022] The meanings of the reference numerals in the attached figures are as follows: 10. Air box; 11. First air chamber; 12. First air inlet; 120. Air inlet channel; 121. First connecting section; 122. Second connecting section; 123. First connecting section; 124. First installation channel; 125. Blind end; 13. Air outlet; 130. Air outlet channel; 131. Second connecting section; 132. Fourth connecting section; 133. Third connecting section; 134. Second installation channel; 20. Air nozzle; 21. Second air chamber; 22. Second air inlet; 23. Air eye; 30. Second valve assembly; 31. Second drive component; 310. Guide connector; 32. Second stop; 320. Pressure relief channel; 321. Pressure relief port; 41. First drive component; 42. First stop; 50. Glass; 60. Air inlet duct; 70. Conveyor roller. Detailed Implementation

[0023] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0026] Example 1 See Figure 1 and Figure 2This utility model discloses a device for correcting local deformation of tempered glass, comprising an air grid assembly and a valve mechanism. Specifically, the air grid assembly includes an air box 10, which has a first air cavity 11, a first air inlet 12, and an air outlet 13, both of which are connected to the first air cavity 11. The valve mechanism is installed at the first air inlet 12 and / or the air outlet 13 and is used to open or close the first air inlet 12 and / or the air outlet 13. More specifically, the first air inlet 12 guides airflow into the first air cavity 11 when open and blocks airflow from entering the first air cavity 11 when closed; the air outlet 13 guides airflow out of the first air cavity 11 when open and blocks airflow from exiting the first air cavity 11 when closed.

[0027] Based on this structure, when using the device of this utility model for correcting local deformation of tempered glass, the air grid assembly can be arranged above and below the glass 50 in the cooling section of the tempering furnace, so that the air outlet 13 of the air box 10 faces the area of ​​the glass 50 to be cooled. The valve mechanism is installed at the first air inlet 12 and / or air outlet 13 of the air box 10. The first air inlet 12 is connected to an external air source (such as an air compressor) through the air inlet pipe 60.

[0028] During use, after the glass 50 is heated to its softening point, it enters the cooling section. An external air source delivers compressed air to the first air chamber 11 of the air box 10 through the open first air inlet 12. The airflow is evenly distributed through the first air chamber 11 and then ejected from the air outlet 13, rapidly cooling the surface of the glass 50. At this time, the valve mechanism keeps the first air inlet 12 and / or the air outlet 13 open. Under normal operating conditions, the airflow is stably input into the first air chamber 11 and output from the air outlet 13 to the upper and lower sides of the glass 50, dissipating heat from the upper and lower surfaces of the glass 50.

[0029] When local deformation of the glass 50 is detected in real time by manual monitoring or instruments, the first air inlet 12 and / or air outlet 13 corresponding to the deformation area of ​​the glass 50 can be closed by controlling the valve assembly, thereby reducing the wind pressure on the glass 50 on the side of the local deformation area and correcting the shape of the glass 50. Specifically, the surface temperature distribution and deformation trend of the glass 50 can be detected by infrared thermometers, laser rangefinders, etc. If it is detected that the lower part of the glass 50 dissipates heat too quickly, causing the glass 50 to bulge upwards in a local area, or if deformation such as the edge of the glass 50 is detected, the air outlet 13 on the air box 10 of the lower air grille assembly corresponding to the deformation area of ​​the glass 50 can be closed by the valve mechanism, and / or the first air inlet 12 corresponding to these air outlets 13 can be closed.

[0030] For example, in the production process of Low-e glass, since the upper surface of the glass 50 is coated before tempering, the heat on the upper surface of the glass 50 is reflected by the thin film, resulting in slow heat dissipation; the lower part of the glass 50 is in contact with the roller conveyor, resulting in faster heat dissipation. Meanwhile, the two corners of the glass 50 that leave the tempering furnace first have a larger heat dissipation area, and the different heat dissipation rates on the upper and lower sides of the glass 50 make it prone to warping at the two corners of the Low-e glass leaving the tempering furnace. In this case, the air outlets 13 on the air box 10 of the air grid assembly at the lower part of the glass 50 corresponding to the deformation area of ​​the glass 50 can be closed by a valve mechanism, and / or the first air inlets 12 corresponding to these air outlets 13 can be closed.

[0031] Specifically, when the air outlet 13 corresponding to the deformation area of ​​the glass 50 is closed, the airflow from the air outlet 13 corresponding to the deformation area of ​​the glass 50 is reduced. When the first air inlet 12 corresponding to these air outlets 13 is closed, the airflow into the air box 10 in these air outlet 13 areas is reduced, thereby reducing the airflow from the air outlets 13 corresponding to the deformation area of ​​the glass 50. The reduced airflow from the air outlets 13 can suppress the heat dissipation rate of the glass 50 on that side. At the same time, the upper air grille maintains normal air pressure, so that the heat dissipation rate of the upper and lower surfaces of the glass 50 tends to be balanced. During this period, the monitoring system continuously tracks the deformation data until the local convexity or warping of the glass 50 is reduced to an allowable range.

[0032] The opening degree of the first air inlet 12 and / or air outlet 13 set in the corresponding deformation area of ​​the glass 50 can also be adjusted by the valve mechanism, thereby adjusting the air volume of the air outlet 13. For example, when the valve is closed, the airflow output of the first air chamber 11 is obstructed, the air pressure of the air outlet 13 decreases, and the cooling rate of the lower part of the glass 50 slows down.

[0033] If it is detected that the upper part of the glass 50 is dissipating heat too quickly in a local area, causing the glass 50 to dent in a local area, the air outlet 13 on the air box 10 of the upper air grille assembly corresponding to the deformation area of ​​the glass 50 can be closed by the valve mechanism, or the first air inlet 12 corresponding to these air outlets 13 can be closed. The adjustment process and function are as described above.

[0034] Therefore, by independently controlling the first air inlet 12 or air outlet 13 of the air box 10 through the valve mechanism, the air pressure and heat dissipation speed of the local area of ​​the glass 50 can be flexibly adjusted, and precise intervention can be made for local heat dissipation abnormalities of the glass 50, so that the heat dissipation of the upper and lower surfaces of the glass 50 tends to be balanced, thereby correcting deformation problems such as local convexity, concavity or edge warping caused by uneven heat dissipation, ensuring that the deformation of the glass 50 is reduced to the allowable range, and effectively improving the quality and production efficiency of the tempered glass 50 finished product.

[0035] Furthermore, the valve mechanism includes a first valve assembly, and the first valve assembly is mounted on the first air inlet 12 and / or air outlet 13. See also... Figure 4 The first valve assembly includes a first drive member 41 and a first stop member 42, and the first air inlet 12 is provided with an air inlet channel 120 and the air outlet 13 is provided with an air outlet channel 130.

[0036] The first driving member 41 is used to drive the first stop member 42 to move closer to or away from the air inlet channel 120 and / or the air outlet channel 130. The first stop member 42 is used to block the air inlet channel 120 and / or the air outlet channel 130 after moving closer to the air inlet channel 120 and / or the air outlet channel 130, and to open the air inlet channel 120 and / or the air outlet channel 130 after moving away from the air inlet channel 120 and / or the air outlet channel 130.

[0037] Based on this structure, during use, the first drive member 41 first drives the first baffle member 42 away from the air inlet channel 120 or the air outlet channel 130, so that the channel is fully opened. At this time, the airflow can enter the first air cavity 11 without obstruction and exit from the first air cavity 11 to the air outlet 13 for normal operation. The glass 50 is in the normal cooling stage.

[0038] When a local deformation of the glass 50 is detected, the first valve assembly in the first air inlet 12 or the air outlet 13 corresponding to the local deformation area of ​​the glass 50 can be activated. When the first valve assembly is installed in the air outlet 13, the first drive member 41 can push the first stop member 42 to move towards the air outlet channel 130; when the first valve assembly is installed in the first air inlet 12, the first drive member 41 can push the first stop member 42 to move towards the air inlet channel 120, blocking part or all of the channel cross-section.

[0039] It should be noted that the reduction in the cross-sectional area of ​​the air outlet 130 leads to increased airflow resistance, a decrease in air pressure at the air outlet 13, a slowdown in the cooling rate of the corresponding area of ​​the glass 50, and a gradual reduction in the temperature difference between the upper and lower surfaces. The reduction in the cross-sectional area of ​​the air inlet 120 also leads to increased airflow resistance, reducing or preventing external airflow from entering the first air chamber 11. This results in a decrease in local air pressure in the area where the first air inlets 12 are located, thereby reducing the air pressure at the air outlets 13 located in the corresponding deformed areas of the glass 50. Consequently, the cooling rate of the glass 50 on the side that cools faster in the deformed area slows down, and the heat dissipation of the upper and lower surfaces of the glass 50 tends to be balanced.

[0040] The first driving component 41 can be a power device such as a cylinder or a hydraulic cylinder; the shape of the first baffle 42 is adapted to the cross section of the air inlet channel 120 or the air outlet channel 130. It can be a sealing strip made of rubber, silicone or other materials, or a baffle made of stainless steel, aluminum alloy or other materials, and the edge of the baffle is provided with a sealing structure such as a rubber lip or a silicone lip.

[0041] Therefore, by displacing the first baffle 42, the air pressure of the bellows 10 in the area corresponding to the deformation of the glass 50 can be continuously adjusted, and the air pressure of the air outlet 13 in the area corresponding to the deformation of the glass 50 can also be further controlled. A first valve assembly can be installed in both the first air inlet 12 and the air outlet 13, so that the first baffle 42 can simultaneously block the air inlet channel 120 and the air outlet channel 130, increasing the speed of air pressure control in the deformation area of ​​the glass 50.

[0042] Furthermore, the valve mechanism includes a second valve assembly 30, and the second valve assembly 30 is mounted on the first air inlet 12. See also... Figure 2 as well as Figure 3 The second valve assembly 30 includes a second drive member 31 and a second stop member 32. Specifically, the first air inlet 12 is provided with an air inlet channel 120. The second drive member 31 is used to drive the second stop member 32 to move closer to or away from the air inlet channel 120. The second stop member 32 is used to block the air inlet channel 120 after moving closer to it, and to open the air inlet channel 120 after moving away from it.

[0043] Based on this structure, during use, the second drive component 31 first drives the second stop component 32 away from the air inlet channel 120, and the air inlet channel 120 is fully opened. The compressed air from the external air source enters the first air chamber 11 directly through the fully opened air inlet channel 120, and is then evenly sprayed out through the air outlet 13. At this time, the system is in the maximum air volume state, which is suitable for the initial rapid cooling stage of the glass 50.

[0044] When uneven heat dissipation is detected in a localized area of ​​the glass 50, the second valve assembly 30 within the first air inlet 12 located above or below the localized deformation area of ​​the glass 50 can be activated. The second drive component 31 can push the second baffle 32 to move towards the center of the air inlet channel 120, blocking part or all of the channel's cross-section. The reduction in the cross-sectional area of ​​the air inlet channel 120 leads to a decrease in the air volume input to the first air chamber 11, and the air pressure at the air outlet 13 located in the localized deformation area of ​​the glass 50 decreases accordingly. This slows down the cooling rate of the glass 50 on that side, and suppresses the trend of widening temperature difference between the upper and lower parts.

[0045] The second driving component 31 can be a power device such as a cylinder or a hydraulic cylinder; the shape of the second baffle 32 is adapted to the cross-section of the air inlet channel 120. It can be a sealing strip made of rubber, silicone or other materials, or a baffle made of stainless steel, aluminum alloy or other materials, and the edge of the baffle is provided with a sealing structure such as a rubber lip or a silicone lip.

[0046] Therefore, by directly controlling the air inlet channel 120 through the second valve assembly 30, the air volume of the input air box 10 in the deformation area of ​​the glass 50 can be quickly adjusted, thereby reducing the air pressure and air volume at the air outlet 13 in that area.

[0047] Further, see Figure 2 and Figure 3 The air inlet channel 120 includes a first connecting section 121, a second connecting section 122, and a first connecting section 123, with both ends of the second connecting section 122 connected to the first connecting section 121 and the first connecting section 123, respectively. The first connecting section 121 is connected to the first air cavity 11, and the first connecting section 123 is used to connect to the air inlet duct 60.

[0048] See again Figure 2 The first air inlet 12 is further provided with a first installation channel 124, which extends through the side of the second connecting section 122. A first stop 42 or a second stop 32 is installed within the first installation channel 124 and is used to move along the first installation channel 124 under the drive of the first drive member 41 or the second drive member 31, to approach or move away from the second connecting section 122. Specifically, the first stop 42 or the second stop 32 is used to block the second connecting section 122 after approaching it, thereby isolating the first connecting section 121 from the first connecting section 123.

[0049] Based on this structure, the first baffle 42 or the second baffle 32 can be fully embedded in the first mounting channel 124, and its movement trajectory is perpendicular to the axis of the second connecting section 122. When the first baffle 42 or the second baffle 32 is located in the first mounting channel 124, the air inlet channel 120 is fully open, and the airflow can enter through the first connecting section 123 and be guided into the first air cavity 11 through the first connecting section 121.

[0050] When the first driving member 41 drives the first stop member 42 or the second driving member 31 drives the second stop member 32 to extend from the first installation channel 124, the first stop member 42 or the second stop member 32 blocks the cross section of the second connecting section 122. When the second connecting section 122 is completely blocked, the first connecting section 123 does not take in air, and the first connecting section 121 does not guide air into the first air cavity 11, thereby reducing the air pressure of the air box 10 in the area of ​​the first air inlet 12.

[0051] Therefore, by moving the first stop 42 or the second stop 32 within the first mounting channel 124, the opening and closing degree of the air inlet channel 120 and the airflow can be precisely controlled. When the glass 50 experiences localized deformation due to inconsistent heat dissipation rates on its upper and lower sides during the tempering process, the position of the stop can be flexibly adjusted according to the actual situation. For specific areas of glass 50 deformation, by reducing the air pressure in the corresponding air box 10 area, the cooling rate of that part of the glass 50 can be adjusted in a targeted manner, effectively correcting the localized deformation of the glass 50. This also avoids interference with the cooling process of other normal parts of the glass 50, improving the overall quality and production efficiency of the tempered glass 50.

[0052] Further, see Figure 4 The first stop 42 includes a first body extending along the first mounting channel 124, and the power output end of the first drive member 41 is connected to the end of the first body; or, See Figure 3 The second stop 32 includes a second body extending along the first mounting channel 124, and the power output end of the second drive member 31 is connected to the end of the second body. The second body contains a pressure relief channel 320 extending along the first mounting channel 124 to one end of the second body, and the side of the second body facing the first connecting section 121 has a pressure relief port 321 communicating with the pressure relief channel 320. (See reference...) Figure 2 The pressure relief port 321 is used to connect with the first connecting section 121 when the second main body blocks the second connecting section 122.

[0053] Based on this structure, the first air inlet 12 can be opened or closed using either a first valve assembly or a second valve assembly 30. When the first valve assembly is used, the first drive member 41 is connected to the first main body via a connecting rod, and the connecting rod is also connected to the side wall of the first air inlet 12 via a guide connector 310. Driven by the first drive member 41, the first main body can enter the air inlet channel 120 through the first mounting channel 124 and block the second connecting section 122.

[0054] When the second valve assembly 30 is used, the second drive member 31 is connected to the second main body via a connecting rod. Simultaneously, the connecting rod is also connected to the side wall of the first air inlet 12 via a guide connector 310. Driven by the second drive member 31, the second main body can enter the air inlet channel 120 through the first mounting channel 124 and block the second connecting section 122. At this time, the pressure relief port 321 on the second main body connects to the first connecting section 121, so that the pressure relief channel 320 connects to the first air chamber 11 through the pressure relief port 321 and the first connecting section 121.

[0055] When the pressure relief channel 320 is connected to the first air cavity 11, although the air pressure in the area of ​​the first air cavity 11 located in the closed first air inlet 12 is reduced, since the other first air inlets 12 of the first air cavity 11 are not completely closed, the areas of the first air cavity 11 in different first air inlets 12 are connected. At this time, the pressure in all parts of the first air cavity 11 is greater than the pressure in the pressure relief channel 320. Some airflow in the first air cavity 11 will reverse into the first connecting section 121 and be discharged from the first air inlet 12 by the pressure relief port 321 and pressure relief channel 320 on the second main body.

[0056] The first installation channel 124 is provided with a blind end 125. The first main body or the second main body is connected to the second driving member 31 through a connecting rod. The connecting rod is connected to the blind end 125 of the first installation channel 124 through a guide connector 310, and the guide connector 310 can be a guide rod.

[0057] Further, see Figure 4 The air outlet duct 130 includes a third connecting section 133, a fourth connecting section 132 and a second connecting section 131. Specifically, the two ends of the fourth connecting section 132 are connected to the third connecting section 133 and the second connecting section 131 respectively, and the third connecting section 133 is connected to the first air cavity 11.

[0058] The air outlet 13 is further provided with a second mounting channel 134, which extends through the side of the fourth connecting section 132. A first stop 42 is installed in the second mounting channel 134 and is used to move along the second mounting channel 134 under the drive of the first driving member 41 to approach or move away from the fourth connecting section 132. Furthermore, the first stop 42 is used to block the fourth connecting section 132 after approaching it, thereby isolating the third connecting section 133 from the second connecting section 131.

[0059] Based on this structure, the first baffle 42 can be fully embedded in the second mounting channel 134, and its movement trajectory is perpendicular to the axis of the fourth connecting section 132. When the first baffle 42 is located in the second mounting channel 134, the air outlet channel 130 is fully open, and the airflow can enter from the third connecting section 133 and exit from the first air cavity 11 through the second connecting section 131.

[0060] When the first driving member 41 drives the first stop member 42 to extend from the second installation channel 134, the first stop member 42 blocks the cross section of the fourth connecting section 132. When the fourth connecting section 132 is completely blocked, the third connecting section 133 does not take in air, and the second connecting section 131 does not take in air, thus reducing the air pressure of the air box 10 in the air outlet 13 area.

[0061] Therefore, when the first baffle 42 is fully embedded in the second mounting channel 134, the air outlet channel 130 is unobstructed, which can meet the large air volume requirement of the glass 50 during the normal cooling stage or the initial stage, ensuring that the surface of the glass 50 is quickly and evenly covered by the cooling airflow, and quickly completing the key cooling steps in the tempering process. When the first baffle 42 extends from the second mounting channel 134 and completely blocks the fourth connecting section 132, the airflow output can be completely cut off. This quick switching function between fully open and fully closed states provides great flexibility to deal with different deformation conditions and cooling stages of the glass 50. When an abnormal cooling trend occurs in a local area of ​​the glass 50 (such as a corner cooling too quickly), the corresponding air outlet 13 can be quickly closed to prevent the problem from worsening.

[0062] Furthermore, the cooling air pressure on the surface of the glass 50 can be finely adjusted by independently adjusting the air outlet 130 (e.g., adjusting the air outlet 130 only through the first baffle 42); it can also work in conjunction with the air inlet 120 (e.g., adjusting the air inlet 120 through the first baffle 42 or the second baffle 32). For example, the airflow entering the air box 10 can be initially adjusted by first baffle 42 or second baffle 32 of the air inlet 120, and then, based on the real-time deformation of the glass 50, the air pressure of the air outlet 130 can be more precisely controlled by the first baffle 42, thereby achieving refined management of the cooling process of the glass 50 and greatly improving the device's ability to correct local deformations of the glass 50 of different types and degrees.

[0063] Furthermore, the first stop 42 includes a first body that extends along the second mounting channel 134, and the power output end of the first drive member 41 is connected to the end of the first body.

[0064] The first driving component 41 is connected to the first main body via a connecting rod. The first driving component 41 can be a power device such as a cylinder or hydraulic cylinder, and its power output end is the end of the piston rod. The shape of the first main body is adapted to the cross-section of the second mounting channel 134, and it can be a sealing strip made of materials such as rubber or silicone.

[0065] Furthermore, the air box 10 is provided with a plurality of first air inlets 12; in addition, the air grid assembly also includes a plurality of air inlet pipes 60, the air outlets of the plurality of air inlet pipes 60 are connected one-to-one with the air inlet ends of the plurality of first air inlets 12, and the air inlet ends of the air inlet pipes 60 are used to connect to the fan.

[0066] Based on this structure, since the wind box 10 is provided with multiple first air inlets 12, each first air inlet 12 is connected to the fan outlet through the air inlet pipe 60. Under normal cooling conditions, the area of ​​the first air chamber 11 in the wind box 10 corresponding to each first air inlet 12 is connected. After the airflow is evenly distributed through the first air chamber 11, it is sprayed out from multiple air outlets 13 on the wind box 10.

[0067] Each first air inlet 12 can be equipped with a valve mechanism, specifically a first valve assembly or a second valve assembly 30. After closing all or part of the first air inlets 12 via the valve mechanism, the air pressure in the area of ​​the first air chamber 11 corresponding to these first air inlets 12 decreases, thereby reducing the air pressure at the corresponding air outlet 13. For example, when the edge of the glass 50 dissipates heat too quickly and is prone to warping, the valve mechanism can close the corresponding first air inlet 12 in the edge area. This reduces the air pressure in the area of ​​these air inlets in the first air chamber 11, and consequently reduces the air pressure at the corresponding air outlet 13. The cooling airflow blowing towards the edge of the glass 50 weakens, slowing down the cooling rate and making the cooling rate of all parts of the glass 50 more uniform, effectively correcting local deformation and improving the flatness and quality of the glass 50.

[0068] Therefore, by flexibly controlling the opening and closing status or degree of opening and closing of each first air inlet 12 through the valve mechanism, the air pressure distribution in different areas within the air box 10 can be adjusted according to the specific needs of the glass 50 product. Under normal cooling conditions, all first air inlets 12 are open, and the air box 10 can provide uniform cooling airflow. When glass 50 deformation, equipment failure, or process adjustments occur during production, the opening and closing status of the first air inlets 12 can be quickly adjusted through the valve mechanism to change the air pressure distribution within the air box 10, in order to cope with various emergencies and ensure the continuity and stability of production.

[0069] Furthermore, the air box 10 is provided with multiple air outlets 13, and the air grid assembly also includes multiple air nozzles 20, which are installed on the air box 10 and are arranged one-to-one with the multiple air outlets 13. The air nozzles 20 are used to provide airflow to the surface of the glass 50.

[0070] Based on this structure, during use, the fan can deliver compressed air through the air inlet duct 60 to the first air chamber 11 of the air box 10. Within the first air chamber 11, the airflow is evenly distributed, and then enters the corresponding nozzles 20 through each air outlet 13. The nozzles 20 spray the airflow at a specific angle and speed onto the surface of the glass 50, rapidly cooling the glass 50, causing compressive stress to form on the surface of the glass 50 and tensile stress to form internally, thus completing the tempering process.

[0071] If localized deformation, such as warping or bending, is detected in the glass 50 during production, the air pressure at the relevant air outlet 13 can be adjusted via the valve mechanism. At this time, the intensity of the airflow from the nozzle 20 will change accordingly, providing targeted cooling and correction to the deformed area of ​​the glass 50. For example, if the lower part of the glass 50 heats up too quickly and warps, the air pressure at the corresponding air outlet 13 in the lower area can be reduced, decreasing the airflow from the nozzle 20 in that area and slowing down the cooling rate of the lower part of the glass 50. This makes the cooling rates of the upper and lower parts of the glass 50 more consistent, thereby correcting the deformation.

[0072] Therefore, the multiple air nozzles 20 are correspondingly arranged with the air outlet 13, which enables the airflow to evenly cover all areas of the glass 50 surface, avoiding uneven cooling in certain areas. By adjusting the air pressure at the air outlet 13 through the valve mechanism, the airflow of each air nozzle 20 can be precisely controlled.

[0073] The air box 10 can be made of aluminum profile. The first air inlet 12 and the air outlet 13 can be pipe sections integrally formed on the air box 10. The inner walls of these pipe structures form air inlet or air outlet channels, and the air inlet or air outlet channels are connected to the outside by the first air chamber 11 through the side wall of the air box 10. The first air inlet 12 and the air outlet 13 can also be pipe sections with flanges at the ends. The inner walls of the pipe sections form air inlet or air outlet channels. The flanges are connected to the openings on the air box 10 by screws, so that the air inlet or air outlet channels can be connected to the first air chamber 11 through the openings.

[0074] Further, see Figure 3 The nozzle 20 includes a housing. Specifically, the housing has a second air cavity 21, a second air inlet 22, and multiple air vents 23. Both the air vents 23 and the second air inlet 22 are connected to the second air cavity 21. The second air inlet 22 is installed at the air outlet 13 and is used to guide the airflow from the first air cavity 11 into the second air cavity 21. The multiple air vents 23 are used to guide the airflow from the second air cavity 21 toward the surface of the glass 50.

[0075] Based on this structure, the second air inlet 22 of the nozzle 20 can be installed and connected to the air outlet 13 of the air box 10. The nozzle 20 can be securely installed on the air box 10 by means of bolts, clips and other fixing methods.

[0076] During the operation of the glass 50 tempering equipment, the blower delivers compressed air into the first air chamber 11 of the air box 10. After being evenly distributed in the first air chamber 11, the airflow enters the second air chamber 21 of the air nozzle 20 through the air outlet 13 connected to the second air inlet 22. The airflow entering the second air chamber 21 then passes through multiple air holes 23 and is blown out at a certain speed and angle, directly acting on the surface of the glass 50. This allows the airflow to evenly cover the surface of the glass 50, thus cooling the glass 50.

[0077] When localized deformation of the glass 50 is detected, requiring adjustment of the cooling intensity, the air pressure at the outlet 13 can be adjusted via the valve mechanism on the air box 10. This change in air pressure is transmitted to the nozzle 20, affecting the airflow entering the second air chamber 21, and consequently altering the intensity of the airflow blowing out from the eyelet 23, thus achieving precise control over the localized cooling of the glass 50. For example, if a certain area of ​​the glass 50 dissipates heat too quickly, the air pressure at the outlet 13 corresponding to the nozzle 20 can be reduced, decreasing the airflow from the eyelet 23 and slowing down the cooling rate of that area of ​​the glass 50 on that side.

[0078] Therefore, the nozzle 20 concentrates the airflow and blows it out through the eyelet 23, optimizing the airflow transmission path from the air box 10 to the surface of the glass 50, reducing energy loss and resistance during transmission, and enabling the airflow to act more efficiently on the surface of the glass 50, thus improving the overall performance of the air grid assembly. Compared to blowing directly from the outlet 13, this increases the airflow speed and impact force, allowing for more thorough heat exchange between the glass 50 surface and the airflow, improving cooling efficiency, shortening tempering time, and increasing production efficiency.

[0079] Furthermore, the wind grating assembly includes a plurality of wind boxes 10, which extend along a first direction and are spaced apart along a second direction. A plurality of air nozzles 20 are spaced apart on the wind boxes 10 along the first direction. (See reference...) Figure 1 The corresponding nozzles 20 on each bellows 10 are connected along the second direction.

[0080] Based on this structure, when installing the wind grid assembly, multiple wind boxes 10 are first arranged evenly at intervals along the second direction, with each wind box 10 extending along the first direction. Then, multiple air nozzles 20 are installed at intervals on the wind boxes 10 along the first direction, so that the air nozzles 20 at corresponding positions on each wind box 10 are connected along the second direction to form a continuous array of air nozzles 20.

[0081] It should be noted that, for reference Figure 2 and Figure 5 The first direction is the length direction of the bellows and the width direction of the nozzle; the second direction is the width direction of the bellows and the length direction of the nozzle; the first direction is perpendicular to the second direction.

[0082] When the glass tempering equipment is running, the blower delivers compressed air to each air box 10. The first air chamber 11 inside the air box 10 performs preliminary distribution and buffering of the airflow, ensuring that the airflow is evenly distributed within the air box 10. Since the air nozzles 20 are spaced apart on the air box 10 along the first direction, the airflow enters the second air inlet 22 of the air nozzle 20 from the air outlet 13 of the air box 10, then passes through the second air chamber 21 of the air nozzle 20, and finally exits from the air eye 23, acting on the surface of the glass 50. The multiple air boxes 10 are spaced apart along the second direction, allowing the glass 50 to receive airflow from the air nozzles 20 of different air boxes 10 in the second direction. The corresponding air nozzles 20 on each air box 10 are connected along the second direction, ensuring the continuity and uniformity of the airflow received by the glass 50 in the second direction.

[0083] Therefore, by arranging the air nozzles 20 at intervals along the first direction, the glass 50 can be uniformly cooled in the first direction; and by arranging multiple air boxes 10 at intervals along the second direction and connecting the air nozzles 20, the glass 50 can also be fully and uniformly cooled in the second direction. Through this arrangement, the surface of the glass 50 can be cooled uniformly and rapidly, forming a uniform stress distribution, thereby achieving a good tempering effect.

[0084] Example 2 Unlike Embodiment 1, this embodiment discloses a glass forming apparatus, which includes a machine body, a conveyor roller conveyor 70, and the device for correcting local deformation of tempered glass from Embodiment 1. The machine body has a heating section and a forming section, the conveyor roller conveyor 70 passes through the heating section and the forming section, and the device for correcting local deformation of tempered glass from Embodiment 1 is located in the forming section. Specifically, the heating section is used to heat the glass 50 to a softening temperature, the forming section is used to temper and form the glass 50, and the device for correcting local deformation of tempered glass can correct local deformation of the glass 50 during the tempering process.

[0085] Based on this structure, when using the glass forming equipment of this invention, the glass 50 to be tempered can be placed at the starting end of the conveyor roller 70. The roller motor is started, driving the rollers to rotate and smoothly conveying the glass 50 into the equipment. When the glass 50 enters the heating section of the machine body, the heating elements (such as electric heating wires, radiant heating tubes, etc.) start to work, causing the temperature of the glass 50 to gradually rise to the softening temperature.

[0086] After glass 50 leaves the heating section, it immediately enters the forming section. At this time, the device used to correct local deformation of the tempered glass begins to operate. (See also...) Figure 2When the fan in the air grid assembly starts, it delivers compressed air to the first air chamber 11 of the air box 10 through the air inlet pipe 60. Under normal operating conditions, after the airflow is evenly distributed through the first air chamber 11, it enters the air nozzle 20 through the air outlet 13, and then is sprayed at high speed from the air eye 23 of the air nozzle 20 onto the surface of the glass 50, which cools the glass 50 rapidly, forming compressive stress on the surface and tensile stress inside, thus realizing the initial tempering process.

[0087] During the cooling process of glass 50, once manual operation or detection equipment detects local deformation of glass 50, the valve mechanism can be controlled to close the first air inlet 12 and / or air outlet 13, or the flow area of ​​the air inlet channel 120 or air outlet channel 130 can be changed to reduce the wind pressure in the local deformation area of ​​glass 50, reduce the amount of airflow, and slow down the cooling rate of the side of glass 50 that dissipates heat faster, thereby correcting the local deformation. How the valve mechanism changes the airflow of the corresponding glass deformation area's air outlet 13 is explained in Embodiment 1 and will not be elaborated further here.

[0088] Therefore, the glass forming equipment of this utility model realizes the continuous conveying of glass 50 from heating to forming, and can correct the local shape of glass 50 during the tempering process, which greatly reduces the rework rate and scrap rate caused by deformation defects.

[0089] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. An apparatus for correcting local distortions in tempered glass, characterized by: include, A wind grid assembly includes a wind box, the wind box having a first air cavity, a first air inlet and an air outlet, the first air inlet and the air outlet being connected to the first air cavity; A valve mechanism is installed at the first air inlet and / or the air outlet and is used to open or close the first air inlet and / or the air outlet; the first air inlet is used to guide airflow into the first air cavity when it is open and to block airflow from entering the first air cavity when it is closed; the air outlet is used to guide airflow out of the first air cavity when it is open and to block airflow from being discharged from the first air cavity when it is closed.

2. The apparatus for correcting local distortions of tempered glass according to claim 1, wherein: The valve mechanism includes a first valve assembly, which is installed at the first air inlet and / or the air outlet. The first valve assembly includes a first driving member and a first stop member. An air inlet channel is provided in the first air inlet, and an air outlet channel is provided in the air outlet. The first driving member is used to drive the first stop member to move closer to or away from the air inlet channel and / or the air outlet channel. The first stop member is used to block the air inlet channel and / or the air outlet channel after moving closer to the air inlet channel and / or the air outlet channel, and to open the air inlet channel and / or the air outlet channel after moving away from the air inlet channel and / or the air outlet channel.

3. The apparatus for correcting local distortions of tempered glass according to claim 2, wherein: The valve mechanism includes a second valve assembly, which is installed at the first air inlet. The second valve assembly includes a second driving member and a second stop member. An air inlet channel is provided in the first air inlet. The second driving member is used to drive the second stop member to move closer to or away from the air inlet channel. The second stop member is used to block the air inlet channel after moving closer to it, and to open the air inlet channel after moving away from it.

4. The device for correcting local deformation of tempered glass according to claim 3, characterized in that: The air inlet channel includes a first connecting section, a second connecting section, and a first connecting section. The two ends of the second connecting section are respectively connected to the first connecting section and the first connecting section. The first connecting section is connected to the first air cavity, and the first connecting section is used to connect to the air inlet duct. The first air inlet is further provided with a first installation channel, which extends through the side of the second connecting section; the first stop or the second stop is installed in the first installation channel and is used to move along the first installation channel under the drive of the first drive or the second drive to approach or move away from the second connecting section; the first stop or the second stop is used to block the second connecting section after approaching it, so as to isolate the first connecting section from the first connecting section.

5. The device for correcting local deformation of tempered glass according to claim 4, characterized in that: The first stop includes a first body extending along the first mounting channel, and the power output end of the first drive member is connected to the end of the first body; or, The second stop includes a second body extending along the first mounting channel, and the power output end of the second drive member is connected to the end of the second body. The second body has a pressure relief channel extending along the first mounting channel to one end of the second body. The second body has a pressure relief port on the side facing the first connecting section, and the pressure relief port communicates with the pressure relief channel. The pressure relief port is used to communicate with the first connecting section when the second body blocks the second connecting section.

6. The device for correcting local deformation of tempered glass according to claim 2, characterized in that: The air outlet duct includes a third connecting section, a fourth connecting section, and a second connecting section. The two ends of the fourth connecting section are respectively connected to the third connecting section and the second connecting section. The third connecting section is connected to the first air cavity. The air outlet is also provided with a second installation channel, which penetrates the side of the fourth connecting section; the first stop is installed in the second installation channel and is used to move along the second installation channel under the drive of the first drive member to approach or move away from the fourth connecting section; the first stop is used to block the fourth connecting section after approaching it, so as to isolate the third connecting section from the second connecting section.

7. The apparatus for correcting localized deformation of tempered glass according to claim 6, characterized in that: The first stop includes a first body that extends along the second mounting channel, and the power output end of the first drive member is connected to the end of the first body.

8. The device for correcting local deformation of tempered glass according to claim 1, characterized in that: The air box is provided with multiple first air inlets; the air grid assembly also includes multiple air inlet pipes, the air outlets of the multiple air inlet pipes are connected to the air inlet ends of the multiple first air inlets one by one, and the air inlet ends of the air inlet pipes are used to connect to the fan.

9. The apparatus for correcting localized deformation of tempered glass according to claim 1 or 8, characterized in that: The air box is provided with multiple air outlets, and the air grid assembly includes multiple air nozzles. The multiple air nozzles are installed on the air box and are arranged one-to-one with the multiple air outlets; the air nozzles are used to provide airflow to the glass surface.

10. The apparatus for correcting localized deformation of tempered glass according to claim 9, characterized in that: The nozzle includes a housing, which has a second air cavity, a second air inlet, and a plurality of air holes. The air holes and the second air inlet are both connected to the second air cavity. The second air inlet is installed at the air outlet. The second air inlet is used to guide the airflow of the first air cavity into the second air cavity, and the plurality of air holes are used to guide the airflow of the second air cavity to blow onto the glass surface.

11. The apparatus for correcting localized deformation of tempered glass according to claim 10, characterized in that: The wind grid assembly includes a plurality of wind boxes, which extend along a first direction and are spaced apart along a second direction; a plurality of air nozzles are spaced apart on the wind boxes along the first direction, and the air nozzles at corresponding positions on each wind box are connected along the second direction.

12. A glass forming device, characterized in that: The device includes a machine body, a conveyor roller conveyor, and a device for correcting local deformation of tempered glass as described in any one of claims 1-11. The machine body is provided with a heating section and a forming section, and the conveyor roller conveyor passes through the heating section and the forming section. The device for correcting local deformation of tempered glass is disposed in the forming section. The heating section is used to heat the glass to a softening temperature, the forming section is used to temper and form the glass, and the device for correcting local deformation of tempered glass is used to correct local deformation during the tempering process of the glass.

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