Air grid for tempering columnar glass

Abstract

The air grid for tempering the columnar glass comprises an upper air grid and a lower air grid, the upper air grid comprises an upper air cavity and an upper air box, and the lower air grid comprises a lower air cavity and a lower air box; the upper air box is of a columnar barrel structure, the central angle of the vertical section of the upper air box is alpha, alpha is larger than or equal to 180 degrees and smaller than or equal to 360 degrees, the generatrix direction of the upper air box is parallel to the glass conveying direction, and the length of the upper air box in the generatrix direction is larger than the maximum chord length of the upper air box. The air inlet of the upper air box is arranged at the upper part and / or the side part of the generatrix direction of the upper air box, and the lower surface of the upper air box is provided with an air outlet hole. The utility model has the advantages of uniform wind pressure and small wind resistance.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass tempering, and in particular relates to a columnar wind grid for glass tempering. Background Art

[0002] When curved glass is cooled by air in the tempering section, a wind grid is required to blow air onto the glass. For example, the wind grid for curved glass tempering disclosed in patent application number CN201910742611.6 uses multiple upper wind boxes to blow air onto the upper portion of the glass, resulting in uneven air pressure, a complex structure, and high wind resistance. Summary of the Invention

[0003] The utility model aims to provide a columnar glass tempering wind grid with uniform wind pressure and small wind resistance.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A wind grille for tempering columnar glass comprises an upper wind grille and a lower wind grille, the upper wind grille comprising an upper wind cavity and an upper wind box, the lower wind grille comprising a lower wind cavity and a lower wind box; the upper wind box is a columnar cylindrical structure, assuming that the central angle of the vertical cross-section of the upper wind box is α, then 180°≤α≤360°, the busbar direction of the upper wind box is parallel to the glass conveying direction, the length of the upper wind box in the busbar direction is greater than the maximum chord length of the upper wind box, the air inlet of the upper wind box is arranged on the upper part and / or the side part of the upper wind box in the busbar direction, and the lower surface of the upper wind box is provided with an air outlet.

[0006] The beneficial effect is that by configuring the upper wind box as a cylindrical structure with its generatrix parallel to the glass conveying direction, and the generatrix length of the upper wind box being greater than its maximum chord length, the cooling air has more space for mixing along the length of the upper wind box, thereby achieving more complete and uniform mixing of the cooling air, thereby ensuring a more uniform wind flow to the columnar glass. At the same time, the curved lower surface of the upper wind box makes the wind field between the upper wind box and the columnar glass more uniform.

[0007] Furthermore, the interior of the upper wind box is a hollow structure.

[0008] The beneficial effect is that the cooling air enters the upper wind box without any interference, is mixed more evenly, greatly reduces wind resistance, and can use a smaller fan, making the equipment more energy-efficient.

[0009] Furthermore, a support member is provided inside the upper wind box.

[0010] The beneficial effect is that the support member can increase the rigidity and strength of the upper wind box, so that the upper wind box can be made larger and longer.

[0011] Furthermore, there are multiple downwind boxes, which are divided into multiple downwind box groups. The multiple downwind box groups are arranged at intervals along the glass conveying direction, and the blowing surface of each downwind box group is arc-shaped.

[0012] The beneficial effect is that the lower surface of the columnar glass is also evenly cooled by the wind.

[0013] Furthermore, the upper air box has a plurality of air outlet holes, and the plurality of air outlet holes are divided into a plurality of groups, and each group of air outlet holes is respectively provided corresponding to one of the lower air box groups.

[0014] The beneficial effect is that the air outlet holes of the upper air box correspond to the lower air box, ensuring uniform cooling of the glass. The position of the upper air box without air outlets blocks the cooling air between the upper air box and the curved glass, preventing the cooling air from being quickly discharged. This also makes the cooling air flow field between the air outlet holes and the columnar glass more uniform, improving the cooling efficiency of the glass, increasing the cooling air's action time, and making the equipment more energy-efficient.

[0015] Furthermore, the air outlet of the upper air box is provided with an air nozzle.

[0016] The beneficial effect is that the air nozzle can increase the flow rate of the air flow, thereby increasing the cooling efficiency.

[0017] Furthermore, the total length of the air inlet of the upper wind box in the glass conveying direction is less than or equal to the length of the upper wind box in the busbar direction, and is greater than or equal to 1 / 2 of the length of the upper wind box in the busbar direction.

[0018] The beneficial effect is that the air inlet of the upper air box is longer in the length direction, so that the cooling air is more uniform in the length direction.

[0019] Furthermore, the upper wind box has multiple air inlets.

[0020] The beneficial effect is that the rigidity of the upper wind box is ensured.

[0021] Furthermore, there are multiple upper wind boxes, and the length of each upper wind box in the busbar direction is greater than the maximum chord length of the upper wind box.

[0022] The beneficial effects of this utility model are as follows: by configuring the upper wind box as a cylindrical structure with its generatrix parallel to the glass conveying direction, the columnar glass is more evenly exposed to wind. The generatrix length of the upper wind box is greater than its maximum chord length, allowing for greater mixing space for the cooling air along its length, resulting in more complete and uniform mixing of the cooling air. This reduces wind resistance in the upper wind box and makes the equipment more energy-efficient. Furthermore, the curved lower surface of the upper wind box smooths the airflow between the upper wind box and the columnar glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the main view of the wind grille of the utility model;

[0025] Figure 2 This is a schematic diagram of the axial side of the wind box of the utility model;

[0026] Figure 3 This is an axial schematic diagram of the lower air grille of the present invention.

[0027] Markings in the figure: 1, upper air cavity, 2, upper air box, 21, air inlet, 3, lower air cavity, 4, lower air box. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention in any way.

[0029] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. Example

[0030] As attached Figure 1 and attached Figure 2 As shown, a columnar glass tempering wind grid includes an upper wind grid and a lower wind grid. The upper wind grid includes an upper wind cavity 1 and an upper wind box 2, which are connected to each other. The lower wind grid includes a lower wind cavity 3 and a lower wind box 4, which are connected to each other. The upper wind box 2 is a columnar cylindrical structure. The vertical cross-section of the upper wind box 2 is semicircular, circular, elliptical, semi-elliptical, irregularly circular or semicircular. Figure 1The vertical cross-section of the middle upper wind box 2 is circular. Assuming the central angle of the vertical cross-section of the upper wind box 2 is α, then 180°≤α≤360°. The generatrix direction of the upper wind box 2 is parallel to the glass conveying direction, and the length of the upper wind box 2 in the generatrix direction is greater than the maximum chord length of the upper wind box 2. The maximum chord length of the upper wind box 2 refers to the distance between the two farthest points on the circumference of the vertical cross-section of the upper wind box 2. Preferably, the air inlet 21 of the upper wind box 2 is located at the upper portion thereof in the generatrix direction, and an air outlet is provided on the lower surface of the upper wind box 2.

[0031] The vertical cross-section of the upper wind box 2 can be a semi-cylindrical, semi-elliptical, or irregular semi-cylindrical shape with a central angle of 180°; it can be a cylindrical, elliptical, or irregular cylindrical shape with a central angle of 360°; or it can be any semi-cylindrical, semi-elliptical, or irregular semi-cylindrical shape with a central angle between 180° and 360°. The specific shape of the upper wind box 2 can be determined according to the shape of the actual cylindrical glass to be tempered. For example, if the cylindrical glass is semi-elliptical, the cross-section of the upper wind box 2 can be elliptical or semi-elliptical; if the cross-section of the cylindrical glass is semicircular, the cross-section of the upper wind box 2 can be circular or semicircular. It is worth noting that the central angle of the upper wind box 2 does not necessarily have to be the same as the central angle of the cylindrical glass to be tempered. Instead, the central angle of the upper wind box 2 can be set to be greater than or equal to the central angle of the cylindrical glass to be tempered.

[0032] In other embodiments, the air inlet 21 of the upper wind box 2 is disposed on the side of the upper wind box 2 in the generatrix direction, for example, on one or both sides of the upper wind box 2 in the generatrix direction. Alternatively, the air inlet 21 of the upper wind box 2 is disposed on both the side and the top of the upper wind box 2 in the generatrix direction. The side and top here refer to the surface of the cylindrical body of the upper wind box 2, not the two ends of the upper wind box 2 along the glass conveying direction.

[0033] In this embodiment, there is one upper wind box 2. In other embodiments, there are multiple upper wind boxes 2, which are arranged at intervals along the glass conveying direction, and the length of each upper wind box 2 in the busbar direction is greater than the maximum chord length of the upper wind box 2.

[0034] By configuring the upper wind box 2 to be a cylindrical structure with its busbar direction parallel to the glass conveying direction, the length of the upper wind box 2 in the busbar direction is greater than the maximum chord length of the upper wind box 2, so that the cooling air has a larger mixing space in the longitudinal direction of the upper wind box 2, thereby making the cooling air mixing more sufficient and more uniform, so that the columnar glass is more evenly affected by the wind. At the same time, the curved lower surface of the upper wind box 2 makes the wind field between the upper wind box 2 and the columnar glass more uniform, while in the comparative document CN201910742611.6, there is a large gap between adjacent upper wind boxes, the space between the upper wind box outlet and the columnar glass is small, and the gap between adjacent upper wind boxes is large, which causes turbulence in the wind field between the upper wind grid and the columnar glass, resulting in uneven cooling of the glass.

[0035] Preferably, the interior of the upper air box 2 is a hollow structure. This allows the cooling air to enter the upper air box 2 without any interference and to be mixed more evenly. Compared with the reference document CN201910742611.6, the wind resistance is greatly reduced, and a smaller fan can be used, making the equipment more energy-efficient.

[0036] In other embodiments, a plurality of support members are provided inside the upper wind box 2. The support members are preferably provided in the middle of the length direction of the upper wind box 2 and are provided away from the air outlet of the upper wind box 2 to reduce interference with the cooling air. Of course, the support members can also be provided at other positions. The support members are preferably support rods to minimize interference with the cooling air. The support members can also be support plates with holes. Reasonable support member settings will not have a significant impact on the uniformity of the cooling air, and at the same time can increase the rigidity and strength of the upper wind box 2, so that the diameter of the upper wind box 2 can be set larger and the length can be longer, so as to be used for the blow-tempered tempering of columnar glass with a larger diameter.

[0037] As attached Figure 3 As shown, there are multiple downwind boxes 4, and the multiple downwind boxes 4 are divided into multiple downwind box groups. The multiple downwind box groups are arranged at intervals along the glass conveying direction, and the blowing surface of each downwind box group is arc-shaped. The lower surface of the upper wind box 2 is provided with multiple groups of air holes, and each group of air outlet holes is arranged corresponding to a downwind box group, so that the glass is cooled evenly. The position on the lower surface of the upper wind box 2 where no air outlet holes are provided can form a diversion effect for the cooling air between the upper wind box 2 and the columnar glass, so that the cooling air flow field between the lower surface of the upper wind box 2 and the columnar glass is more uniform. Compared with the comparative document CN201910742611.6, the cooling efficiency of the glass is improved and the cooling effect is enhanced.

[0038] In this embodiment, each downwind box group along the glass conveying direction is an integral downwind box 4. In other embodiments, each downwind box group includes multiple downwind boxes 4, and the multiple downwind boxes 4 together form an arc-shaped blowing surface.

[0039] As attached Figure 2 As shown, the total length of the air inlet 21 of the upper air box 2 in the glass conveying direction is less than the length of the upper air box 2 in the generatrix direction, but greater than 1 / 2 of the length of the upper air box 2 in the generatrix direction. The longer length of the air inlet 21 of the upper air box 2 ensures more uniform air flow along the length of the upper air box 2 and more uniform wind pressure distribution within the upper air box 2 along the length of the upper air box 2. If the length of the air inlet 21 of the upper air box 2 is too small, the wind pressure at the air outlets at both ends of the upper air box 2 in the length direction will be low, resulting in uneven cooling of the glass in the conveying direction.

[0040] The upper wind box 2 can have a single air inlet 21. Preferably, the upper wind box 2 has multiple air inlets 21, and the total length of the multiple air inlets 21 along the glass conveying direction is greater than half the length of the upper wind box 2 along the generatrix and less than the length of the upper wind box 2 along the generatrix. Furthermore, when the upper wind box 2 has multiple air inlets 21, reinforcing ribs are naturally formed between the multiple air inlets 21, thereby ensuring the rigidity of the upper wind box 2.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Those skilled in the art should understand that the specific implementation methods of the present invention can be modified or replaced with equivalents with reference to the above embodiments. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of protection of the pending claims.

Claims

1. A columnar glass tempering wind grid, comprising an upper wind grid and a lower wind grid, wherein the upper wind grid comprises an upper wind cavity and an upper wind box, and the lower wind grid comprises a lower wind cavity and a lower wind box; characterized in that: The upper wind box is a cylindrical structure. Assuming that the central angle of the vertical section of the upper wind box is α, then 180°≤α≤360°, the busbar direction of the upper wind box is parallel to the glass conveying direction, the length of the upper wind box in the busbar direction is greater than the maximum chord length of the upper wind box, the air inlet of the upper wind box is arranged on the upper part and / or the side part of the busbar direction of the upper wind box, and the lower surface of the upper wind box is provided with an air outlet.

2. The wind fence according to claim 1, characterized in that: The interior of the wind box is a hollow structure.

3. The wind fence according to claim 1, characterized in that: A support member is provided inside the wind box.

4. The wind fence according to claim 1, characterized in that: There are multiple downwind boxes, which are divided into multiple downwind box groups. The multiple downwind box groups are arranged at intervals along the glass conveying direction, and the blowing surface of each downwind box group is arc-shaped.

5. The wind fence according to claim 4, characterized in that: The upper air box has a plurality of air outlet holes, which are divided into a plurality of groups, and each group of air outlet holes is respectively arranged corresponding to one of the lower air box groups.

6. The wind fence according to claim 1 or 5, characterized in that: The air outlet of the upper air box is provided with an air nozzle.

7. The wind fence according to claim 1, characterized in that: The total length of the air inlet of the upper wind box in the glass conveying direction is less than or equal to the length of the upper wind box in the busbar direction, and is greater than or equal to 1 / 2 of the length of the upper wind box in the busbar direction.

8. The wind fence according to claim 7, characterized in that: The upper wind box has multiple air inlets.

9. The wind fence according to claim 1, characterized in that: There are multiple upper wind boxes, and the length of each upper wind box in the busbar direction is greater than the maximum chord length of the upper wind box.

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