Coated glass bent steel air grid structure

Abstract

The utility model provides a bent steel air grid structure for coated glass, and belongs to the technical field of glass deep processing equipment. Comprising a fan, an air bag, an upper air grid and a lower air grid, and the fan and the air bag are communicated and connected through flexible connection; an upper air duct and a lower air duct are connected to the air bag in a communicating manner, and are sequentially connected with an upper air grid and a lower air grid in a communicating manner through flexible connections; electromagnetic air valves are arranged in the upper air duct and the lower air duct, an air guide plate capable of distributing the air inlet amount of the upper air duct and the lower air duct is arranged in the air bag, and the angle of the air guide plate is adjustable. The utility model has the advantage of effectively solving the problem of straight edge warping generated in the process of tempering the curved-surface coated glass.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass deep processing equipment and relates to a coated glass bent steel wind grille structure. Background Art

[0002] During the production and processing of curved coated glass, the flat glass must first be sent to the magnetron sputtering coating production line for coating processing, and then sent to the tempering furnace for heating. When the glass is heated to a temperature of 620 degrees to soften it, it is taken out of the furnace and enters the forming wind grid section. After the glass enters the forming wind grid section, the roller automatically forms an arc surface with a set curvature. After the heated and soft glass swings back and forth on the arc surface several times, the flat glass is formed into curved glass; then, the strip wind grids at the upper and lower ends of the forming wind grid section automatically blow air to strongly quench and cool the glass to form it.

[0003] However, since only one side of the coated glass has a low-e film, the cooling rates of the two sides are different, which causes the straight edge to warp, resulting in poor fit and bubbles in the subsequent lamination process. With the application of double-silver and triple-silver products, the change in the film layer structure has caused the straight edge to bend more, so it is necessary to optimize the wind grid mechanism of the equipment to address this problem. Utility Model Content

[0004] The utility model aims to solve the above problems existing in the prior art and to provide a coated glass bent steel wind grille structure, so as to solve the problem of warping of straight edges of coated glass in the steel bending process.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a coated glass bent steel wind grille structure, including a fan, an air bag, an upper wind grille and a lower wind grille, the fan and the air bag are conductively connected by a soft connection; the air bag is conductively connected with an upper air duct and a lower air duct, and the upper air duct and the lower air duct are conductively connected to the upper wind grille and the lower wind grille respectively through a soft connection; it is characterized in that electromagnetic air valves are provided in the upper air duct and the lower air duct, and an air guide plate which can distribute the air intake of the upper air duct and the lower air duct is provided in the air bag, and the angle of the air guide plate is adjustable.

[0006] The utility model has the advantages:

[0007] In this bent steel wind grille, an air guide plate is arranged in the wind bag to distribute the air volume between the upper wind grille and the lower wind grille, thereby improving the difference in cooling rate of the two surfaces of the coated glass; electromagnetic air valves are arranged on both the upper and lower air ducts to achieve the time difference between the opening of the upper and lower wind grilles, thereby filling the temperature difference between the upper and lower surfaces of the glass due to molding, so that during the process of blowing the glass to generate stress, the two surfaces are cooled almost synchronously, thereby overcoming the problem of straight edge warping and improving the fit of the subsequent laminated product structure after the glass is assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the planar structure of the bent steel wind grille.

[0009] In the figure, 1. fan; 2. wind bag; 3. upper air grille; 4. lower air grille; 5. flexible connection; 6. upper air duct; 7. lower air duct; 8. electromagnetic air valve; 9. air guide plate; a. coated glass; b. roller conveyor. DETAILED DESCRIPTION

[0010] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0011] like Figure 1 As shown, a coated glass bent steel wind grille structure includes a fan 1, a wind bag 2, an upper wind grille 3 and a lower wind grille 4, and the fan 1 and the wind bag 2 are conductively connected by a soft connection 5; the wind bag 2 is conductively connected with an upper air duct 6 and a lower air duct 7, and the upper air duct 6 and the lower air duct 7 are conductively connected to the upper air grille 3 and the lower air grille 4 respectively through the soft connection 5; electromagnetic air valves 8 are provided in the upper air duct 6 and the lower air duct 7, and an air guide plate 9 is provided in the wind bag 2 for distributing the air intake of the upper air duct 6 and the lower air duct 7, and the angle of the air guide plate 9 is adjustable.

[0012] According to the principle of thermal expansion and contraction, the non-coated surface reaches below the annealing temperature in advance and no longer shrinks, while the coated surface cools down but does not reach the annealing temperature, and continues to shrink, causing the glass to warp. Therefore, we set an air guide plate 9 in the wind, which can distribute the air intake of the upper air duct 6 and the lower air duct 7. Therefore, we can guide more of the cooling air supplied by the fan 1 to the upper air grid 3, so that the cooling rates of the two surfaces of the coated glass a are as close as possible, thereby overcoming the warping problem caused by different cooling rates; of course, how to distribute the air volume (that is, the specific angle of the air guide plate 9) needs to be determined by multiple experiments based on the differences in product structure.

[0013] However, the tempering process of curved coated glass a is different from that of flat glass. It is formed first and then blown to generate stress. However, during the glass forming process, its lower surface is always in contact with roller b. Under the heat conduction of roller b, the temperature of its lower surface drops rapidly. Therefore, when the wind grid is opened, there is already a temperature difference between the upper and lower surfaces of the glass. Therefore, we specially install an electromagnetic air valve 8 on the upper and lower air ducts 7, so that when the coated curved glass is quenched, after the fan 1 is started, we first open the electromagnetic air valve 8 in the upper air duct 6, and then open the electromagnetic air valve 8 in the lower air duct 7, so that there is a time difference in the startup of the upper air grid 3 and the lower air grid 4, and then use the cooling time to fill the temperature difference between the upper and lower surfaces of the glass, so that when the upper air grid 3 and the lower air grid 4 are both started, the temperatures of the upper and lower surfaces of the glass are as close as possible.

[0014] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A coated glass bent steel wind grille structure, comprising a fan (1), a wind bag (2), an upper wind grille (3) and a lower wind grille (4), wherein the fan (1) and the wind bag (2) are conductively connected by a flexible connection (5); an upper wind duct (6) and a lower wind duct (7) are conductively connected to the wind bag (2), and the upper wind duct (6) and the lower wind duct (7) are conductively connected to the upper wind grille (3) and the lower wind grille (4) respectively through the flexible connection (5); characterized in that: The upper air duct (6) and the lower air duct (7) are both provided with electromagnetic air valves (8), and the air bag (2) is provided with an air guide plate (9) capable of distributing the air intake of the upper air duct (6) and the lower air duct (7), and the angle of the air guide plate (9) is adjustable.

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