Cooling air grid with upper air inlet and lower air inlet

Abstract

An up-down air inlet cooling air grid comprises an upper air grid set and a lower air grid set which are located above and below a conveying roller way respectively, the upper air grid set and the lower air grid set each comprise an air box assembly with an air inlet, and the face, facing the conveying roller way, of each air box assembly is provided with an end plate connected with an air distribution box. The multiple air distribution boxes are arranged at intervals in the conveying direction of the conveying roller way and connected to the end plate and communicate with the air box assembly, air blowing nozzles are arranged at the ends, facing the conveying roller way, of the air distribution boxes, the end plate is of a V-shaped structure, the top end faces the conveying roller way, and the two sides of the V-shaped structure extend towards the two sides in the width direction of the conveying roller way. The flow guide slopes gradually inclining from the middle of the conveying roller way to the two sides and far away from the conveying roller way are formed on the faces, facing the conveying roller way, of the end plates, hot air reflected by the middle of glass can be smoothly discharged to the outside, and the problem that exhaust of the upper and lower air inlet cooling air grid is not smooth is effectively solved. Cullet falling from the conveying roller way can also be discharged to the two sides of the air grid through the V-shaped inclined surface of the end plate in the lower air grid group, so that the cullet is convenient to clean.

Description

Technical Field

[0001] The utility model relates to a cooling air grille for tempered glass equipment, specifically an up-and-down air inlet cooling air grille. Background Art

[0002] According to different air inlet modes, the cooling air grille of a horizontal roller type glass tempering unit is divided into two types: rear side air inlet and up-and-down air inlet. For the convenience of installation and space arrangement, the rear air inlet mode is generally adopted in the market. In some occasions where high requirements are imposed on air pressure and air pressure uniformity and the installation space permits, the up-and-down air inlet cooling air grille can better meet the requirements of the glass tempering process.

[0003] At present, in the actual use process of the up-and-down air inlet cooling air grille on the market, when the produced glass is relatively wide, there is generally a problem that the heat dissipation in the middle of the glass is slow and the heat dissipation at the edge is fast, resulting in "bulging" in the middle after the glass tempering is completed and the camber not meeting the standard. The structure of the existing up-and-down air inlet cooling air grille is as Figure 1 、 Figure 2 shown, which mainly consists of a conveying roller path 8, a blowing nozzle 5, an original air distribution box 13, a side plate 4, original upper and lower end plates 12, and an original air box assembly 11. During the cooling process of the glass 9, the high-pressure cooling air blown out by the blowing nozzle 5 blows onto the surface of the glass 9, and after heat exchange, it is reflected and led out in the opposite direction. The hot air reflected from the edge of the glass 9 can be timely guided to the outside, while the hot air reflected from the middle part of the glass 9 is blocked by the original upper and lower end plates 12 and cannot be discharged smoothly, forming an eddy current in the gap of the original air distribution box 13 between the original upper and lower end plates 12 and the glass 9, thereby reducing the heat exchange efficiency of the middle part of the glass 9, resulting in a higher temperature in the middle part of the glass 9 than at the edge, "bulging" in the middle after the glass tempering is completed, and the camber not meeting the standard. At the same time, the original upper and lower end plates 12 are of a flat plate structure. When broken glass appears, it is difficult to clean the broken glass due to the blockage of the original upper and lower end plates 12. Summary of the Utility Model

[0004] The technical problem solved by the utility model is to overcome the defect that the air exhaust in the middle part of the up-and-down air inlet cooling air grille is not smooth, resulting in inconsistent temperatures between the middle and the edge of the glass, and to provide an up-and-down air inlet cooling air grille.

[0005] The technical solution adopted by the present utility model to solve the above technical problems is as follows: An up-and-down air inlet cooling air grille, which includes an upper air grille group and a lower air grille group respectively located above and below the conveying roller path. Both the upper air grille group and the lower air grille group include an air box assembly with an air inlet. One side of the air box assembly facing the conveying roller path has an end plate connecting the sub-air boxes. A plurality of sub-air boxes are connected to the end plate at intervals along the conveying direction of the conveying roller path and are communicated with the air box assembly. A blowing nozzle is provided at one end of the sub-air box facing the conveying roller path. The end plate has a V-shaped structure, the protruding top of the V-shaped structure faces the conveying roller path, and both sides of the V-shaped structure extend towards both sides in the width direction of the conveying roller path, so that the surface of the end plate facing the conveying roller path forms a diversion inclined surface that gradually inclines from the middle of the conveying roller path to both sides and is away from the conveying roller path.

[0006] A plurality of air inlet channels extending in the width direction of the conveying roller path and arranged at intervals along the conveying direction of the conveying roller path are distributed on the end plate, and each air inlet channel is communicated with the corresponding sub-air grille.

[0007] The end plate is formed by butting two flat plates into a V-shaped structure, and the surfaces of the two flat plates facing the conveying roller path form the diversion inclined surface.

[0008] One end of the sub-air box facing the end plate has a V-shaped interface adapted to the V-shaped structure of the end plate.

[0009] One side of the air box assembly facing the conveying roller path is a V-shaped cavity adapted to the V-shaped structure of the end plate. The air inlet of the air box assembly is opposite to the vertex angle of the V-shaped cavity, forming an air distribution structure that distributes air from the center to both sides through the end plate of the V-shaped structure.

[0010] Side plates are connected to both sides of the sub-air box in the width direction of the conveying roller path. The side plates extend along the conveying direction of the conveying roller path and are connected to a plurality of sub-air boxes.

[0011] A heat dissipation port connected to the diversion inclined surface is provided between the side plate and the end plate.

[0012] The V-shaped top of the end plate in the upper air grille group faces downwards, and both sides of the end plate in the width direction of the conveying roller path extend upwards and obliquely.

[0013] The V-shaped top of the end plate in the lower air grille group faces upwards, and both sides of the end plate in the width direction of the conveying roller path extend downwards and obliquely.

[0014] One group or multiple groups of air box assemblies are arranged in the conveying direction of the conveying roller path for the upper air grille group and the lower air grille group. A plurality of sub-air boxes are connected to the end plate of each group of air box assemblies.

[0015] The beneficial effects of the present utility model are as follows: The side of the end plate of the bellows assembly facing the conveying roller path is in a V-shaped structure, forming a diversion inclined plane that gradually slopes from the middle of the conveying roller path to both sides and away from the conveying roller path, which can smoothly discharge the hot air reflected from the middle part of the glass to the outside, effectively solving the problem of poor exhaust of the cooling air grilles with air inlet from above and below. At the same time, when the glass is broken, the broken glass falling from the conveying roller path can also be smoothly discharged to both sides of the air grille through the "V"-shaped inclined plane of the end plate in the lower air grille group, greatly facilitating the cleaning of the broken glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front structural schematic diagram of a prior art cooling air grille.

[0017] Figure 2 is a side structural schematic diagram of a prior art cooling air grille.

[0018] Figure 3 is a front structural schematic diagram of the cooling air grille of the present utility model.

[0019] Figure 4 is a side structural schematic diagram of the cooling air grille of the present utility model.

[0020] Reference numerals in the figures: 1. Bellows assembly; 2. End plate; 3. Dividing air box; 4. Side plate; 5. Air blowing nozzle; 6. Air inlet; 7. Heat dissipation port; 8. Conveying roller path; 9. Glass; 11. Original bellows assembly; 12. Original upper and lower end plates; 13. Original dividing air box. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions of the present utility model will be described clearly and completely below in conjunction with the accompanying drawings and specific embodiments. The specific contents listed in the following embodiments are not limited to the technical features necessary for solving the technical problems recorded in the claims. At the same time, the listed embodiments are only a part of the present invention, rather than all embodiments.

[0022] Such as Figure 2 and 3As shown in the figure, the up-and-down air intake cooling air grille of the present utility model includes an upper air grille group and a lower air grille group, and the upper air grille group and the lower air grille group are respectively located above and below the conveying roller path 8. Both the upper air grille group and the lower air grille group include an air box assembly 1. The air box assembly 1 has an air inlet 6 for connecting an air supply mechanism such as a blower. One side of the air box assembly 1 facing the conveying roller path 6 has an end plate 2, and a plurality of air inlet channels extending along the width direction of the conveying roller path 8 are distributed on the end plate 2, and the plurality of air inlet channels are spaced apart along the conveying direction of the conveying roller path. Each air inlet channel is connected to a sub-air box 3. A plurality of sub-air boxes 3 are arranged at intervals along the conveying direction of the conveying roller path 8 and are connected to the end plate 2 and communicate with the inner cavity of the air box assembly 1. One end of the sub-air box 3 facing the conveying roller path 6 is provided with a blowing nozzle 5 for blowing air on the glass 9 on the conveying roller path 8. The gap between adjacent sub-air boxes 3 forms a channel for discharging the hot air reflected from the glass 9.

[0023] As shown in the figure, the end plate 2 has a V-shaped structure, which is formed by butting two flat plates, and the butting part of the two flat plates is the vertex of the V shape. The protruding top of the V-shaped structure faces the conveying roller path 8, and the two sides of the V-shaped structure extend towards the two sides in the width direction of the conveying roller path 7. Among them, the V-shaped top of the end plate in the upper air grille group faces downward, and the two sides of the end plate extend upward obliquely in the width direction of the conveying roller path 8. The V-shaped top of the end plate in the lower air grille group faces upward, and the two sides of the end plate extend downward obliquely in the width direction of the conveying roller path 8. The surface of the end plate 2 facing the conveying roller path 8 forms a guiding inclined surface that gradually inclines from the middle of the conveying roller path to both sides and away from the conveying roller path. As Figure 4 shown, each of the two flat plates forming the end plate 2 forms a guiding inclined surface on the surface facing the conveying roller path (8), which can guide the hot air reflected from the glass 9 towards both sides and away from the conveying roller path 8, so that the hot air flow can be discharged outward faster, avoiding the accumulation of hot air in the middle of the glass and affecting the convection heat dissipation efficiency, thereby providing the uniformity of cooling of the middle and side walls of the glass. Moreover, the V-shaped structure of the end plate 2 in the lower air grille group is also convenient for cleaning broken glass. During the cooling process, the broken glass falls onto the end plate and can slide down along the guiding inclined surface extending downward to both sides and be discharged.

[0024] The above-mentioned V shape is only a general shape, that is, a structure with a protrusion in the middle and oblique extensions on both sides. The specific inclination angles of both sides are determined according to the equipment width and the analysis of the gas flow direction.

[0025] As Figure 4As shown, one end of the air distribution box 3 facing the end plate 2 is connected to the end plate 2, and the shape of the connection surface is adapted to the V-shaped structure of the end plate, forming a V-shaped interface. The surface of the air box assembly 1 facing the conveying roller table 8 is V-shaped, and the inner cavity surface facing the conveying roller table 8 is a V-shaped cavity adapted to the V-shaped structure of the end plate 2. The air inlet 6 of the air box assembly 1 is opposite to the vertex angle of the V-shaped cavity. The air flow enters the middle of the inner cavity of the air box assembly 1 from the air inlet 6, and diffuses to both sides through the two inclined surfaces of the V-shaped cavity and enters the air distribution box 3, forming an air distribution structure that distributes air from the center to both sides through the end plate 2 with a V-shaped structure, making the air flow entering the air distribution box 3 more uniform.

[0026] As Figure 3 and 4 As shown, side plates 4 are connected to both sides of the air distribution box 3 in the width direction of the conveying roller table 8. The side plates 4 extend along the conveying direction of the conveying roller table 8 and are connected to a plurality of air distribution boxes 3. A heat dissipation port 7 connected to the guiding inclined surface is provided between the side plate 4 and the end plate 2. The setting of the side plate 4 can, on the one hand, strengthen the structural strength of the air distribution box 3, and on the other hand, can affect the air flow condition between the air distribution boxes 3, further improving the uniformity of cooling of the middle and edge of the glass.

[0027] The number of air box assemblies in the upper air grille group and the lower air grille group is set according to the length of the glass and the requirements of the toughening process. One set of air box assemblies 1 can be set in the conveying direction of the conveying roller table 8, or multiple sets of air box assemblies 1 can be arranged. Each set of air box assemblies is connected with a plurality of air distribution boxes at the end plate according to the above structure.

[0028] When the upper and lower air inlet cooling air grilles of the present utility model are operating, the glass 9 is conveyed to the cooling air grille through the conveying roller table 8. In the upper air grille group and the lower air grille group, the air inlet 6 of the air box assembly 1 opens in advance for air intake. The high-pressure cooling air passes through the air inlet, the air box assembly 1, the air distribution box 3, and the blowing nozzle 5 and finally blows to the surface of the glass 9. After heat exchange, it is reflected to the surroundings and in the reverse direction and discharged to the outside of the air grille, completing the cooling of the glass 9. Under the guiding action of the "V"-shaped inclined surface of the end plate 2 on the upper and lower sides, the hot air reflected from the middle of the glass 9 can be discharged to the outside of the cooling air grille as smoothly as the edge, so as to realize uniform cooling and heat dissipation of the middle and edge of the glass 9. At the same time, the "V"-shaped inclined surface formed by the end plate 2 of the lower air grille group can smoothly guide the broken glass to both sides of the air grille when the glass 9 breaks and falls, which greatly facilitates the cleaning work of the broken glass.

[0029] The above description of the specific implementation manners is only used to help understand the technical concept and its core idea of the present utility model. Although specific preferred embodiments are used in this article to describe and illustrate the technical solutions, it should not be construed as a limitation to the present utility model itself. Those skilled in the art can make various changes in its form and details without departing from the technical concept of the present technology. These easily conceived changes or substitutions should all be covered within the protection scope of the present utility model.

Claims

1. An upper and lower air inlet cooling grille, comprising an upper grille group and a lower grille group respectively located above and below a conveying roller (8), the upper grille group and the lower grille group both comprising a bellows assembly (1) having an air inlet (6), the bellows assembly (1) having an end plate (2) connected to a branch wind box (3) on a side facing the conveying roller (8), a plurality of branch wind boxes (3) are arranged at intervals along the conveying direction of the conveying roller (8) and connected to the end plate (2), and are in communication with the bellows assembly (1), the branch wind box (3) having an end facing the conveying roller (8) having an air blowing nozzle (5), characterized in that: The end plate (2) is in a V-shaped structure, the protruding top of the V-shaped structure faces the conveyor roller (8), and the two sides of the V-shaped structure extend toward the two sides of the width direction of the conveyor roller (8), so that the side of the end plate (2) facing the conveyor roller (8) forms a guide slope that gradually inclines from the middle of the conveyor roller to the two sides and away from the conveyor roller.

2. The upper and lower air inlet cooling grille according to claim 1, characterized in that: The end plate (2) is provided with a plurality of air inlet passages extending along the width direction of the conveying roller (8) and arranged at intervals along the conveying direction of the conveying roller, and each air inlet passage is connected to a corresponding air distribution box (3).

3. The upper and lower air inlet cooling grille according to claim 1, characterized in that: The end plate (2) is formed by two flat plates butted together to form a V-shaped structure, and the two flat plates have one side facing the conveying roller (8) to form the guide slope.

4. The upper and lower air inlet cooling grille according to claim 1, characterized in that: One end of the wind box (3) facing the end plate (2) has a V-shaped interface adapted to the V-shaped structure of the end plate.

5. The upper and lower air inlet cooling grille according to claim 1, characterized in that: The side of the bellows assembly (1) facing the conveying roller (8) is a V-shaped cavity adapted to the V-shaped structure of the end plate (2); the air inlet (6) of the bellows assembly (1) is opposite to the top angle of the V-shaped cavity, forming an air distribution structure that distributes air from the center to both sides through the V-shaped end plate (2).

6. The upper and lower air inlet cooling grille according to claim 1, characterized in that: The air distribution box (3) is connected to side plates (4) on both sides in the width direction of the conveying roller (8); the side plates (4) extend along the conveying direction of the conveying roller (8) and are connected to a plurality of air distribution boxes (3).

7. The upper and lower air inlet cooling grille according to claim 6, characterized in that: A heat dissipation port (7) connected to the guide slope is provided between the side plate (4) and the end plate (2).

8. The upper and lower air inlet cooling grille according to claim 1, characterized in that: The V-shaped top end of the middle end plate of the upper air grille group faces downward, and both sides of the end plate in the width direction of the conveying roller extend upward and tilt.

9. The upper and lower air inlet cooling grille according to claim 1, characterized in that: The V-shaped top end of the end plate in the lower air grille group faces upward, and the two sides of the end plate in the width direction of the conveying roller extend downward in an inclined manner.

10. The upper and lower air inlet cooling grille according to claim 1, characterized in that: The upper wind grid group and the lower wind grid group are provided with one or more groups of wind box assemblies (1) arranged in the conveying direction of the conveying roller (8), and the end plate of each group of wind box assemblies is connected to a plurality of sub-wind boxes.

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