Device and method for eliminating wind spots on glass surface

Abstract

The present invention discloses a device for eliminating wind spots on the surface of glass, comprising: a conveying component, the conveying component having a conveying end face; the conveying end face is used to convey glass along a conveying direction; an upper blowing component, the upper blowing component is arranged above the conveying end face, and is used to guide the airflow to flow back and forth in a swinging direction above the conveying end face; a lower blowing component, the lower blowing component is arranged below the conveying end face, and is used to guide the airflow to flow back and forth in the swinging direction below the conveying end face. A method for eliminating wind spots on the surface of glass, comprising: a conveying step; a glass swinging step; and an air cooling step.

Description

Technical Field

[0001] The invention relates to the technical field of glass production, and in particular to a device and a method for eliminating wind spots on the surface of glass. Background Art

[0002] At present, the tempering process used for curved tempered glass, especially large-format curved glass for construction, is to send the heated glass into the forming area, where the forming and quenching tempering processes are completed simultaneously. The tempering process of the glass requires "uniform heating of the glass, and then rapid and uniform quenching". During the heating and quenching process, if the temperature of any part of the glass surface is different from the temperature field of the overall surface, after the tempering is completed, "traces" of varying degrees will be left on the glass surface. During the quenching process, the "appearance" of the tempering result caused by the difference in the quenching temperature field at various parts of the surface is commonly known as "wind spots" in the industry.

[0003] Specifically, Figure 1 as well as Figure 2 It is a conventional curved tempered glass production device, which consists of an upper air grille 1, a lower air grille 4 and a plurality of conveyor rollers 3. When the glass 2 is heated to a preset softening temperature in the furnace, it is conveyed to Figure 1 In the curved surface forming device shown in the figure, a plurality of conveying rollers are used to convey the curved surface to the space between the upper air grille and the lower air grille, and then as shown in the figure Figure 2 Under the action of the arc changing mechanism, the glass 2 is deformed from a flat glass to a curved glass. Then, the upper and lower air grilles blow air to the upper and lower surfaces of the glass to quench it. At the same time, during the forward and reverse rotation of the conveyor rollers, the glass is moved along the curved surface formed by the multiple conveyor rollers. Figure 2 The arrow direction swings back and forth. The result of this traditional quenching process is that it is easy to leave "dot-shaped" or "strip-shaped" wind spots on the glass surface.

[0004] All curved tempered glass produced by this process will have tempered wind spots. Due to different glass thickness, curvature, heating temperature, quenching wind pressure, blowing distance and other factors, the wind spots will appear in different forms and have different visualization levels. Fundamentally, the wind spots on the surface of curved tempered glass are a kind of "defect" that affects the optical properties of the glass surface. In recent years, as people's aesthetic ability continues to improve, people increasingly hope that there will be no wind spots on the surface of curved tempered glass, or no wind spots visible to the naked eye. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a device for eliminating wind spots on the glass surface, which can reciprocately blow air on the glass on the conveying component through an upper blowing component and a lower blowing component to reduce wind spots in the glass production process.

[0006] The object of the present invention is to provide a method for eliminating wind spots on the glass surface, which can reduce wind spots in the glass production process by blowing air back and forth on the glass.

[0007] One of the purposes of the present invention is achieved by the following technical solution:

[0008] A device for eliminating wind spots on a glass surface, comprising:

[0009] A conveying assembly, wherein the conveying assembly has a conveying end surface; the conveying end surface is used to reciprocate the glass along a conveying direction;

[0010] An upper air blowing assembly, the upper air blowing assembly is arranged above the conveying end surface and is used to guide the airflow to flow back and forth along a swinging direction above the conveying end surface; the swinging direction extends along the width direction of the glass;

[0011] A downward blowing assembly is arranged below the conveying end surface and is used to guide the airflow to flow back and forth along the swinging direction below the conveying end surface.

[0012] Furthermore, the conveying assembly includes a conveying bracket, multiple conveying rollers and an arc-changing mechanism; the multiple conveying rollers are rotatably installed on the conveying bracket; the arc-changing mechanism is used to drive the conveying bracket to deform into an arc shape, so that arc conveying end surfaces are formed on the multiple conveying rollers.

[0013] Furthermore, the down-blowing assembly includes a plurality of wind grid supports, a plurality of wind grid plates and a swinging drive mechanism, the plurality of wind grid supports are connected to the conveying supports; the wind grid plates are rotatably mounted on the wind grid supports; a plurality of blowing holes are provided on the wind grid plates; the wind grid plates are used to guide the airflow to blow toward the conveying end surface; the swinging drive mechanism is used to drive the plurality of wind grid plates to swing back and forth in the swinging direction.

[0014] Furthermore, the swing drive mechanism includes a motor and an eccentric wheel, wherein the motor is mounted on the wind grid bracket, the motor is used to drive the eccentric wheel to rotate, and the eccentric wheel is used to guide the wind grid plate to swing during the rotation process.

[0015] Furthermore, the downblowing assembly further comprises a lifting assembly, and the lifting assembly is used to drive the wind grid plate to move closer to or away from the conveying end surface.

[0016] Furthermore, the upper air blowing component and the lower air blowing component have the same structure.

[0017] Furthermore, the arc-changing mechanism includes multiple arc-changing plates and arc-changing plate driving components, and two adjacent arc-changing plates are hinged to each other; the arc-changing plate driving components are used to drive the multiple arc-changing plates to rotate; the conveying roller is pivotally connected to the arc-changing plates; each of the wind grid brackets is connected to each arc-changing plate; and two adjacent wind grid brackets are connected by a universal joint.

[0018] Furthermore, the arc-changing single-board driving component includes a sprocket, a sprocket shaft and a sprocket shaft driving component, and the sprocket is synchronously connected to the sprocket shaft; the sprocket is pivotally connected to the wind grid bracket.

[0019] The second object of the present invention is achieved by adopting the following technical solutions:

[0020] A method for eliminating wind spots on a glass surface, comprising:

[0021] A conveying step, during the quenching and tempering period of the curved glass, the glass is conveyed between the upper blowing component and the lower blowing component through the conveying component;

[0022] A glass swinging step, in which the glass swings back and forth along the conveying end surface under the action of the conveying assembly;

[0023] In the air cooling step, the upper air blowing component blows air back and forth in the width direction of the upper surface of the glass; and the lower air blowing component blows air back and forth in the width direction of the lower surface of the glass.

[0024] Furthermore, the reciprocating swinging direction of the glass in the glass swinging step is staggered with the reciprocating blowing direction in the air cooling step.

[0025] Furthermore, the method for eliminating wind spots on the glass surface also includes a glass production step,

[0026] The main components of the glass production equipment are the heating section and the device along the direction of the production process. The heating section includes a furnace cavity, a heating element arranged in the furnace cavity, and a ceramic conveyor roller group. The busbar plane on the ceramic conveyor roller group is a horizontal plane.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] During the curved tempered glass process, the air blowing position is changed from a static state to a periodic reciprocating swing along the roller axis. This method can eliminate wind spots on the surface of the curved tempered glass to the greatest extent, greatly improving the optical performance of the glass surface and the visual comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a production state of the prior art;

[0030] Figure 2It is a structural schematic diagram of another production state of the prior art;

[0031] Figure 3 It is a schematic diagram of the air flow structure in the production state of the prior art;

[0032] Figure 4 It is a structural schematic diagram of the present invention;

[0033] Figure 5 It is a schematic diagram of the air flow structure in the production state of the present invention;

[0034] Figure 6 It is a schematic diagram of the local structure of the present invention;

[0035] Figure 7 It is a schematic diagram of the assembly structure of the conveying component and the downward blowing component of the present invention;

[0036] Figure 8 It is a schematic diagram of assembling the conveying component and the downblowing component of the present invention from another viewing angle.

[0037] In the figure: 10, conveying assembly; 11, conveying roller; 12, arc-changing single plate; 13, sprocket; 20, lower air blowing assembly; 21, wind grid plate; 22, wind grid bracket; 221, universal joint; 23, eccentric wheel; 24, lifting assembly; 30, upper air blowing assembly; 40, glass. DETAILED DESCRIPTION

[0038] Below, the present invention is further described in conjunction with the accompanying drawings and specific embodiments:

[0039] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0041] Embodiment 1,

[0042] like Figure 4-8A device for eliminating wind spots on the surface of glass is shown, comprising a conveying component 10, an upper blowing component 30 and a lower blowing component 20. The conveying component 10 has a conveying end surface. During conveying, the produced glass 40 can be placed on the conveying end surface and reciprocated in the conveying direction through the conveying end surface. The glass 40 swings back and forth during the blowing quenching process.

[0043] Specifically, the upper blowing assembly 30 is arranged above the conveying end face, and the upper blowing assembly 30 can guide the airflow to flow back and forth along a swinging direction above the conveying end face. The lower blowing assembly 20 is arranged below the conveying end face, and the lower blowing assembly 20 can guide the airflow to flow back and forth along a swinging direction below the conveying end face, and the swinging direction extends along the width direction of the glass. Since the conveying direction is generally along the length direction of the glass itself, and the swinging direction extends along the width direction of the glass, when blowing, the glass is reciprocated along its own direction by the conveying mechanism. Under the action of the conveying mechanism, airflow flows in different sections of the length direction of the glass itself, and the upper blowing assembly and the lower blowing assembly can extend along the width direction of the glass, so the airflow can flow in the width direction of the glass in the upper blowing assembly and the lower blowing assembly, so that the airflow can flow in both the length direction and the width direction of the glass itself. Based on the above structure, when using the device for eliminating wind spots on the glass surface of the present invention, the glass 40 can be formed and quenched in the forming section of the equipment to achieve forming and quenching tempering. The glass 40 can be first heated in the forming section, and the heated glass 40 can be transported to the quenching section.

[0044] When the glass 40 is transported to the quenching section again, that is, the upper blowing component 30 and the lower blowing component 20 in the present application, the glass 40 located on the conveying end surface of the conveying component 10 can be blown up and down. The upper blowing component 30 can guide the airflow to blow back and forth in the width direction of the glass, that is, it can blow back and forth on the upper surface of the glass 40. Similarly, the lower blowing component 20 can guide the airflow to blow back and forth in the width direction of the glass, that is, it can blow back and forth on the lower surface of the glass 40.

[0045] If the direct blowing method in the prior art is adopted, see Figure 3 ,

[0046] The upper blowing component 30 blows air directly to the upper surface of the glass 40, and the upper blowing component 30 can form a plurality of blowing points A1, A2, A3, A4, A5, A6, A7, A8... on the upper surface of the glass 40; the lower blowing component 20 blows air directly to the lower surface of the glass 40, and the lower blowing component 20 can blow air directly on the lower surface of the glass 40, forming a plurality of blowing points B1, B2, B3, B4, B5, B6, B7, B8, B9... on the lower surface of the glass 40; based on this structure, the cooling points formed on the upper and lower surfaces of the glass 40 are the same and the cooling points are disconnected and discontinuous, thereby forming wind spots at corresponding positions.

[0047] Therefore, in the present application, the upper blowing assembly 30 and the lower blowing assembly 20 can be used to perform reciprocating blowing on the upper surface and the lower surface of the glass 40. Based on such a structure, the upper blowing assembly 30 can form multiple reciprocating blowing points at the same position, see Figure 5 , compared with the existing technology Figure 3 The upper air blowing component 30 can form multiple upper air blowing points at positions A1, A2, A3, A4, A5, A6, A7, A8..., and the lower air blowing component 20 can form multiple lower air blowing points at positions B1, B2, B3, B4, B5, B6, B7, B8, B9..., and since the air flow is continuous during the swinging process of the wind grid plate, the air blowing points at positions A1, A2, A3, A4, A5, A6, A7, A8... are continuous and can be connected to each other to form an upper air blowing surface, and the air blowing points at positions B1, B2, B3, B4, B5, B6, B7, B8, B9... are continuous and can be connected to each other to form a lower air blowing surface.

[0048] In this way, the glass 40 swings back and forth under the action of the conveying component 10, and an air outlet surface in the length direction of the glass itself is formed. In conjunction with the reciprocating airflow of the upper blowing component 30 and the lower blowing component 20, multiple continuous cooling points can be formed on the upper and lower surfaces of the glass, and an air outlet surface is formed in the width direction of the glass. By combining the two actions, multiple continuous cooling points can be formed on the upper and lower surfaces of the glass 40, and the air outlet surface formed by the continuous air outlet points is quenched during air cooling, so that the surface of the glass 40 is quenched by the wind more evenly, thereby achieving the purpose of eliminating wind spots on the surface of the curved tempered glass 40 and improving the optical quality of the surface of the glass 40.

[0049] In summary, in the present application, during the process of the curved tempered glass 40, the blowing position is changed from a static state to a periodic reciprocating swing along the width direction of the glass, forming an upper wind outlet surface and a lower wind outlet surface, and the wind receiving surface of the glass is larger. By adopting this method, the wind spots on the surface of the curved tempered glass 40 can be eliminated to the greatest extent, so that the optical performance of the surface of the glass 40 is greatly improved, and the visual comfort is greatly improved.

[0050] Specifically, the above-mentioned conveying assembly 10 includes a conveying bracket, multiple conveying rollers 11 and an arc-changing mechanism. The multiple conveying rollers 11 are rotatably installed on the conveying bracket. The arc-changing mechanism is used to drive the conveying bracket to deform into an arc shape so that arc conveying end faces are formed on the multiple conveying rollers 11.

[0051] On the basis of this structure, after the multiple conveying rollers are pivotally connected to the conveying bracket, when each conveying roller is conveying glass, the supporting surface formed by each conveying roller is the above-mentioned conveying end surface. In this way, the above-mentioned conveying direction is the arrangement direction of the multiple conveying rollers, and the swinging direction is the extension direction of the axis of the conveying track.

[0052] Since the curved glass 40 needs to swing back and forth during the quenching process, if a flat conveying end face is used, the curved glass 40 must only partially fit with the multiple conveying rollers 11. If the curved glass 40 is reciprocated by multiple conveying rollers 11, the curved glass 40 will shake and fall easily. Therefore, in order to make the curved glass 40 fit more closely with the conveying end face, the conveying bracket can be driven by an arc-changing mechanism to make the conveying bracket in an arc shape. Since the conveying bracket is in an arc shape, the glass bearing surface formed by the multiple conveying rollers 11 pivoted on the conveying bracket, that is, the conveying end face, can also be an arc conveying end face. When conveying the curved glass 40, the arc conveying end face formed by the conveying bracket can be adaptively adjusted according to the curvature of the curved glass 40.

[0053] Of course, the above-mentioned conveying roller 11 can also be replaced by a conveying wheel. On the basis of this structure, conveying wheels can be set on both sides of the conveying bracket to support the glass on both sides. The glass is supported by multiple conveying wheels, and the supporting surfaces of the conveying wheels are connected to form a surface as the conveying end surface.

[0054] In this embodiment, the above-mentioned lower air blowing assembly 20 includes multiple wind grid brackets 22, multiple wind grid plates 21 and a swinging drive mechanism. The multiple wind grid brackets 22 are connected to the conveying bracket, and the wind grid plates 21 are rotatably installed on the wind grid brackets 22, and multiple blowing holes are provided on the wind grid plates 21; the wind grid plates 21 can guide the airflow to blow toward the conveying end surface, and the swinging drive mechanism is used to drive the multiple wind grid plates 21 to swing back and forth in the width direction of the glass.

[0055] On the basis of the above structure, when the lower surface of the glass 40 is air-cooled, the multiple wind grid plates 21 can be driven to swing relative to each wind grid bracket 22 through a swinging drive mechanism. Since the wind grid plates 21 are provided with multiple blowing holes, when blowing, due to the swinging of the swinging plate, the airflow guided to the lower surface of the glass 40 by the multiple blowing holes of the swinging plate can be distributed in the swinging direction, thereby realizing reciprocating blowing on the lower surface of the glass 40 above the wind grid plates 21.

[0056] It should be noted that if the reciprocating blowing surface formed by the multiple wind grid plates 21 does not form an arc that is basically consistent with the curved glass 40, the distance between the reciprocating blowing surface formed by the multiple wind grid plates 21 and the lower surface of the curved glass 40 will be quite different, which will also lead to a large cooling temperature difference at each blowing point, forming a wind spot.

[0057] In this embodiment, since the wind grid bracket 22 used for installing the wind grid plate 21 is connected to the conveying bracket, the wind grid bracket 22 can change the curvature together with the conveying bracket, so that the blowing surface formed by the multiple wind grid plates 21 can match the curved conveying end surface, and the curvature of the lower surface of the curved glass 40 formed by the multiple wind grid plates 21 is basically consistent, so the blowing surface can form a uniform blowing point on the curved lower surface of the glass 40, and it is not easy to have a blowing blind spot.

[0058] Furthermore, the swing drive mechanism includes a motor and an eccentric wheel 23, the motor is mounted on the wind grid bracket 22, the motor is used to drive the eccentric wheel 23 to rotate, and the eccentric wheel 23 is used to guide the wind grid plate 21 to swing during the rotation process. Based on this structure, when the wind grid plate 21 is driven to rotate, the eccentric wheel 23 can be driven to rotate by the rotation of the motor, and the protrusion of the eccentric wheel 23 can press the wind grid plate 21 during the rotation process. Since the eccentric wheel 23 has different points to press against the wind grid plate 21 during one rotation, the eccentric wheel 23 can realize the swing of the wind grid plate 21, and the swing range is realized by the eccentric distance of the eccentric wheel 23.

[0059] Of course, the swing plate can also be driven to rotate directly by a motor to achieve the swing of the swing plate. Based on this structure, the swing range is larger. However, since multiple swing plates are provided, a large placement range is easy to cause interference and difficult to control.

[0060] Furthermore, the above-mentioned lower air blowing component 20 also includes a lifting component 24, which can drive the wind grid plate 21 to move closer to or away from the conveying end surface. Based on this structure, if the blowing distance between the air outlet surface of the wind grid plate 21 and the lower surface of the glass 40 is adjusted, the blowing distance can be adjusted by driving the wind grid plate 21 to move through the lifting component 24, and it can be adjusted according to the cooling temperature.

[0061] The lifting assembly 24 can be realized by a linear motion output structure such as a cylinder or an electric slide in the prior art.

[0062] It should be noted that the multiple blowing holes on the above-mentioned wind grid plate can guide the airflow to be dispersed and exported. Since the swing of the wind grid plate applies a uniform wind-cooling airflow in the width direction of the glass, the multiple blowing holes on the wind grid plate can be distributed in the width direction of the glass to guide the airflow to be further dispersed in the width direction of the glass surface, that is, there is wind-cooling airflow distribution in at least two directions, which makes the quenching and wind absorption of the upper and lower surfaces of the glass more uniform, further reducing the formation of wind spots.

[0063] Embodiment 2,

[0064] The upper air blowing component 30 has the same structure as the lower air blowing component 20 in Example 1. However, this embodiment is different from Example 1 in that the upper air blowing component 30 is arranged above the conveying end surface, and air blowing quenching is performed above the conveying end surface. Its working principle and effect are no longer described in detail in this embodiment.

[0065] Embodiment 3,

[0066] In this embodiment, the arc-changing mechanism of the conveying assembly 10 includes multiple arc-changing plates 12 and arc-changing plate 12 driving parts, and two adjacent arc-changing plates 12 are hinged to each other. Specifically, the arc-changing plate 12 driving parts are used to drive the multiple arc-changing plates 12 to rotate, and the conveying roller 11 is pivotally connected to the arc-changing plates 12. The above-mentioned wind grid brackets 22 are connected to each arc-changing plate 12, and two adjacent wind grid brackets 22 are connected by a universal joint 221.

[0067] On the basis of this structure, the above-mentioned multiple mutually hinged arc-changing single plates 12 can form a conveying bracket, and the above-mentioned conveying rollers 11 are all pivotally connected to the arc-changing single plates 12. When realizing the arc changing of multiple conveying rollers 11, the arc-changing single plates 12 can be driven by the arc-changing baffle driving parts. The rotation of one arc-changing single plate 12 can be linked to the other adjacent arc-changing single plate 12. The conveying roller 11 connected to the arc-changing single plate 12 can change position with the arc-changing single plate 12, and the positions of multiple conveying rollers 11 on a single arc-changing single plate 12 can be changed, and the formed conveying end surface can form an arc-shaped conveying end surface.

[0068] It should be noted that the above-mentioned arc-changing single plate 12 is hinged by a universal joint 221. Specifically, the universal joint 221 can be a universal coupling in the prior art. The connection is achieved by the universal coupling. The two adjacent arc-changing single plates 12 can be extended and retracted, so that the wind grid brackets 22 can be connected in series, and the extension and retraction of the universal coupling can meet the arc-changing requirements in different curvature radius states.

[0069] It should be noted that the above-mentioned arc-changing single board 12 can be driven to rotate by a separate arc-changing single board 12 driving member, or one of the arc-changing single boards 12 can rotate in conjunction with the other arc-changing single boards 12 .

[0070] In addition, the above-mentioned arc-changing mechanism can also be realized by a chain structure in the prior art, with the chain links used as the installation basis, a mounting seat arranged on each link, the end of the conveying roller pivotally connected to the mounting seat, and the conveying bracket formed by the chain links can form a certain arc as the chain swings.

[0071] Of course, it is also possible to use flexible materials, such as rubber and other structures, to make a conveying bracket. The conveying bracket has a certain flexibility, and the conveying roller is rotatably installed on the flexible conveying bracket. The conveying bracket can have a certain deformation under the driving of external force, and can also achieve arc change. In this way, the arc changing mechanism can also simply use a lifting cylinder or the like to apply pressure. However, such a structure will result in insufficient overall strength of the conveying assembly, and multiple points need to be set for pressure to form a certain curved surface, and the arc changing operation is not convenient enough.

[0072] Furthermore, the driving component of the arc-changing single plate 12 includes a sprocket 13 , a sprocket shaft and a sprocket shaft driving component, and the sprocket 13 is synchronously connected to the sprocket shaft; the sprocket 13 is pivotally connected to the wind grid bracket 22 .

[0073] On the basis of this structure, the sprocket shaft can be driven to rotate by the sprocket shaft driving member, and the rotation of the sprocket shaft can drive the sprocket 13 to rotate. Since the sprocket 13 is pivotally connected to the wind grid bracket 22, and the wind grid bracket 22 is connected to the conveying bracket, during the rotation of the wind grid bracket 22, the corresponding position of the conveying bracket can be driven to change up and down, thereby realizing the curvature change of the conveying bracket.

[0074] Embodiment 4,

[0075] A method for eliminating wind spots on a glass surface, comprising:

[0076] A conveying step, during the quenching and tempering period of the curved glass, the glass is conveyed between the upper blowing component and the lower blowing component through the conveying component;

[0077] A glass swinging step, in which the glass is reciprocatedly swung along the conveying end surface under the action of the conveying assembly;

[0078] In the air cooling step, the upper air blowing component blows air back and forth in the width direction of the upper surface of the glass; and the lower air blowing component blows air back and forth in the width direction of the lower surface of the glass.

[0079] If the direct blowing method in the prior art is adopted, see Figure 3 ,

[0080] The upper air blowing component blows air directly to the upper surface of the glass, and the upper air blowing component can form multiple blowing points A1, A2, A3, A4, A5, A6, A7, A8... on the upper surface of the glass; the lower air blowing component blows air directly to the lower surface of the glass, and the lower air blowing component can blow air directly on the lower surface of the glass, forming multiple blowing points B1, B2, B3, B4, B5, B6, B7, B8, B9... on the lower surface of the glass; based on this structure, the cooling points formed on the upper and lower surfaces of the glass in the width direction are the same and the cooling points are disconnected and discontinuous, thereby forming wind spots at corresponding positions.

[0081] Therefore, in the present application, the upper blowing assembly and the lower blowing assembly can be used to perform reciprocating blowing in the width direction on the upper and lower surfaces of the glass. Based on such a structure, the upper blowing assembly can form multiple reciprocating blowing points at the same position, see Figure 5 , compared with the existing technology Figure 3 The upper air blowing component can have multiple upper air blowing points at positions A1, A2, A3, A4, A5, A6, A7, A8..., and since the air flow is continuous during the swinging of the wind grid plate, the upper air blowing surface that can be formed is a surface formed by the continuous connection of multiple air blowing points A1, A2, A3, A4, A5, A6, A7, A8..., and the lower air blowing component can form multiple lower air blowing points at positions B1, B2, B3, B4, B5, B6, B7, B8, B9..., so the lower air blowing surface formed is a surface formed by the continuous connection of multiple air blowing points B1, B2, B3, B4, B5, B6, B7, B8, B9...

[0082] In this way, the glass is swung back and forth in coordination with the action of the conveying assembly to form an air outlet surface in the length direction of the glass itself. The reciprocating airflow of the upper air blowing assembly and the lower air blowing assembly can form multiple continuous cooling points on the upper and lower surfaces of the glass to form an air outlet surface in the width direction of the glass. The synthesis of the two actions allows the air outlet surface formed by continuous air outlet points to be quenched during air cooling, so that the glass surface is quenched more evenly by the wind, thereby achieving the purpose of eliminating wind spots on the surface of curved tempered glass and improving the optical quality of the glass surface.

[0083] In summary, in the present application, during the process of curved tempered glass, the blowing position is changed from a static state to a periodic reciprocating swing along the width direction of the glass. By adopting this method, the wind spots on the surface of the curved tempered glass can be eliminated to the greatest extent, so that the optical performance of the glass surface is greatly improved, and the visual comfort is greatly improved.

[0084] Furthermore, the reciprocating swinging direction of the glass in the glass swinging step is staggered with the reciprocating blowing direction in the air cooling step.

[0085] That is, the swinging direction of the upper air flow and the swinging direction of the lower air flow can be staggered with the swinging direction of the glass itself by the conveying mechanism, that is, when the swinging direction of the upper air flow and the swinging direction of the lower air flow are to the left, the swinging direction of the glass itself by the conveying mechanism is to the right; and when the swinging direction of the upper air flow and the swinging direction of the lower air flow are to the right, the swinging direction of the glass itself by the conveying mechanism is to the left. The control of the above-mentioned swinging direction can be achieved by the rotation direction of the motor. The superposition of the two staggered swinging actions makes the quenching and wind absorption of the upper and lower surfaces of the glass more uniform, and it is less likely to form quenching wind spots, which fundamentally eliminates wind spots.

[0086] Of course, the above-mentioned swinging direction can also be the same. As long as the airflow can form a continuous wind-cooled surface during the swinging process, the glass surface can be more evenly affected by the wind, which can effectively reduce the wind spots formed during the quenching process and improve production quality.

[0087] Furthermore, the method for eliminating wind spots on the glass surface also includes a glass production step:

[0088] Relying on the single-curved tempered glass production equipment to carry out positive bending production or reverse bending production, the method includes a heating process, a forming process and a quenching process; positive bending production refers to a production process in which the center of curvature of any point on the surface of the single-curved tempered glass is above the surface after the production is completed; reverse bending production refers to a production process in which the center of curvature of any point on the surface of the single-curved tempered glass is below the surface after the production is completed;

[0089] The main components of the glass production equipment are the heating section, the forming section and the quenching section along the direction of the production process. The heating section includes a furnace cavity, heating elements arranged in the furnace cavity, and a ceramic conveyor roller group. The busbar plane on the ceramic conveyor roller group is a horizontal plane.

[0090] The forming section mainly includes a plurality of conveying rollers, which synchronously rotate at the same outer diameter linear speed to convey the glass, and the outer diameter circumferences of each conveying roller are fitted together to form a forming curved surface.

[0091] The quenching section can be implemented by using the device for eliminating wind spots on the glass surface in any one of the above embodiments 1-3.

[0092] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A device for eliminating wind spots on glass surface, characterized in that: include, A conveying assembly, wherein the conveying assembly has a conveying end surface; the conveying end surface is used to reciprocate the glass along a conveying direction; An upper air blowing assembly, the upper air blowing assembly is arranged above the conveying end surface and is used to guide the airflow to flow back and forth along a swinging direction above the conveying end surface; the swinging direction extends along the width direction of the glass; A lower air blowing component, which is arranged below the conveying end surface and is used for guiding the airflow to flow back and forth along the swinging direction below the conveying end surface; the conveying component includes a conveying bracket, a plurality of conveying rollers and an arc changing mechanism; the plurality of conveying rollers are rotatably installed on the conveying bracket; the arc changing mechanism is used for driving the conveying bracket to deform into an arc shape, so that arc conveying end surfaces are formed on the plurality of conveying rollers; the lower air blowing component includes a plurality of wind grid brackets, a plurality of wind grid plates and a swinging driving mechanism, the plurality of wind grid brackets are connected to the conveying bracket so that the wind grid bracket changes its curvature together with the conveying bracket; the wind grid plate is rotatably installed on the wind grid bracket; the wind grid plate is provided with a plurality of blowing holes; the wind grid plate is used for guiding the airflow to blow toward the conveying end surface; the swinging driving mechanism is used for driving the plurality of wind grid plates to swing back and forth in the swinging direction.

2. The device for eliminating wind spots on glass surface as claimed in claim 1, characterized in that: The swing driving mechanism comprises a motor and an eccentric wheel. The motor is mounted on the wind grid support. The motor is used to drive the eccentric wheel to rotate. The eccentric wheel is used to guide the wind grid plate to swing during the rotation process.

3. The device for eliminating wind spots on glass surface as claimed in claim 1, characterized in that: The downblowing assembly further comprises a lifting assembly, and the lifting assembly is used to drive the wind grid plate to move closer to or away from the conveying end surface.

4. The device for eliminating wind spots on glass surface according to any one of claims 1 to 3, characterized in that: The upper air blowing component has the same structure as the lower air blowing component.

5. The device for eliminating wind spots on glass surface according to any one of claims 1 to 3, characterized in that: The arc-changing mechanism includes multiple arc-changing plates and arc-changing plate driving components, and two adjacent arc-changing plates are hinged to each other; the arc-changing plate driving components are used to drive the multiple arc-changing plates to rotate; the conveying roller is pivotally connected to the arc-changing plates; each of the wind grid brackets is connected to each of the arc-changing plates; and two adjacent wind grid brackets are connected by a universal joint.

6. The device for eliminating wind spots on glass surface as claimed in claim 5, characterized in that: The arc-changing single-board driving component comprises a sprocket, a sprocket shaft and a sprocket shaft driving component, wherein the sprocket is synchronously connected with the sprocket shaft; and the sprocket is pivotally connected to the wind grid bracket.

7. A method for eliminating wind spots on glass surface, characterized in that: The device for eliminating wind spots on the glass surface according to any one of claims 1 to 6 is used, and the method comprises the following steps: A conveying step, during the quenching and tempering period of the curved glass, the glass is conveyed between the upper blowing component and the lower blowing component through the conveying component; A glass swinging step, in which the glass swings back and forth along the conveying end surface under the action of the conveying assembly; In the air cooling step, the upper air blowing component blows air back and forth in the width direction of the upper surface of the glass; and the lower air blowing component blows air back and forth in the width direction of the lower surface of the glass.

8. The method for eliminating wind spots on glass surface according to claim 7, characterized in that: The reciprocating swinging direction of the glass in the glass swinging step is staggered with the reciprocating blowing direction in the air cooling step.

9. A glass production method, characterized in that: The glass production equipment comprises a heating section, a forming section and a quenching section in the production process direction. The heating section comprises a furnace cavity, a heating element arranged in the furnace cavity and a ceramic conveying roller group. The generatrix plane on the ceramic conveying roller group is a horizontal plane. The forming section mainly comprises a plurality of conveying rollers. The conveying rollers synchronously rotate and convey glass at the same outer diameter linear speed. The outer diameter circumferences of the various conveying rollers are fitted together to form a forming curved surface. The quenching section adopts the device for eliminating wind spots on the glass surface as described in any one of claims 1 to 6; The glass production method includes a method for eliminating wind spots on the glass surface in a quenching section, and the method for eliminating wind spots on the glass surface includes the following steps: A conveying step, during the quenching and tempering period of the curved glass, the glass is conveyed between the upper blowing component and the lower blowing component through the conveying component; A glass swinging step, in which the glass swings back and forth along the conveying end surface under the action of the conveying assembly; In the air cooling step, the upper air blowing component blows air back and forth in the width direction of the upper surface of the glass; and the lower air blowing component blows air back and forth in the width direction of the lower surface of the glass.

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