Glass tempering equipment capable of uniformly blowing

Abstract

The utility model relates to the field of toughened glass production equipment, and discloses glass toughening equipment capable of uniformly blowing, which comprises an air grid group, the air grid group comprises a plurality of air grid bodies which are arranged in parallel at intervals, each air grid body is provided with two blowing gaps, all the air grid bodies blow towards hot glass, and the air grid bodies blow towards the hot glass. The distance between two intersecting lines formed by intersecting the air curtain central surfaces of the two air curtains blown out from the two air blowing gaps of the same air grid body with the surface of the hot glass is D1; the distance between two intersecting lines formed by intersecting the air curtain center faces of the two air curtains blown out of the two adjacent air blowing gaps of the two adjacent air grid bodies with the hot glass surface is D2, and the numerical value range of the ratio of D1 to D2 is 0.9-1.1. All the air grid bodies in the air grid group can blow hot glass completely and uniformly by adjusting the included angles between the air blowing gaps in the air grid bodies and the vertical direction and the positions of the air grid bodies in the air grid group, so that the tempering quality of the glass is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of toughened glass production equipment especially relates to a glass toughening equipment of even blowing. BACKGROUND

[0002] The existing glass toughening method usually heats the glass to a predetermined temperature in a heating furnace, and then directly sends the heated high-temperature glass into a glass toughening device for cooling and toughening forming. The existing glass toughening device is mainly composed of a conveying roller and an upper and lower air grid group. When the glass toughening device works, the heated glass is conveyed by the conveying roller through the upper and lower air grid group. The upper and lower air grid groups blow cold air to the upper and lower surfaces of the glass, respectively. The hot glass is cooled and toughened.

[0003] The air grid generally adopts a plurality of circular small holes opened on the aluminum profile as the air blowing hole, or a long strip-shaped hole opened on the aluminum profile to form an air blowing gap. The cooling air blows to the high-temperature glass through the air blowing gap or the air blowing hole. In actual production, it is found that the shape, position, and size of the air blowing gap on the air grid will affect the toughening quality and effect of the glass.

[0004] The prior art has mentioned that the slit type blowing is used to replace the hole blowing. The slit type blowing air grid specifically includes a single-slit blowing air grid and a double-slit blowing air grid. However, the toughened glass produced by the glass toughening device using the above-mentioned slit type air grid cannot achieve the expected effect, cannot meet the market requirements for the quality of toughened glass, and therefore needs to be improved. UTILITY MODEL CONTENTS

[0005] In view of the problems existing in the prior art, the toughening quality of the toughened glass produced by the existing glass toughening device using the slit type air grid cannot achieve the expected effect. The purpose of the utility model is to provide a glass toughening device with uniform blowing. By adjusting the included angle between the air blowing gap on the air grid body and the vertical direction and the position of the air grid body in the air grid group, all air grid bodies in the air grid group can blow air to the hot glass completely and uniformly, thereby ensuring the toughening quality of the glass.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0007] The application discloses a glass tempering device capable of blowing air uniformly, which is used for cooling hot glass and comprises a wind grid group, wherein the wind grid group comprises a plurality of wind grid bodies arranged in parallel and at intervals, each of the wind grid bodies is provided with a plurality of air blowing slits, and all the wind grid bodies blow air towards the hot glass; the distance between two intersection lines formed by the intersection of the air curtain center surfaces of two air curtains blown from the two outermost air blowing slits of the same wind grid body with the air receiving surface of the hot glass is D1; the distance between two intersection lines formed by the intersection of the air curtain center surfaces of two air curtains blown from the two adjacent air blowing slits of the adjacent two wind grid bodies with the air receiving surface of the hot glass is D2; and the ratio of D1 to D2 is in the range of 0.9-1.1.

[0008] The application has the beneficial effect that: by adjusting the distance between the wind grid bodies in the upper and lower wind grid groups, the distance between the two intersection lines formed by the intersection of the air curtain center surfaces of the two air curtains blown from the two adjacent air blowing slits of the adjacent two wind grid bodies with the air receiving surface of the hot glass is close to or equal to the distance between the two intersection lines formed by the intersection of the air curtain center surfaces of the two air curtains blown from the two outermost air blowing slits of the same wind grid body with the air receiving surface of the hot glass, so that all the wind grid bodies can blow air more uniformly or completely uniformly to the hot glass, the distribution of the air receiving area of the hot glass at each moment during the air receiving and cooling process is more uniform, and the tempering quality of the hot glass is improved.

[0009] The application is further provided as follows: the included angle between the air blowing direction of the air blowing slit and the vertical direction is θ, the distance between the two outermost air blowing slits of the same wind grid body is W, the distance between the air blowing slit and the hot glass is H, and D1=W+2Htanθ.

[0010] The application has the beneficial effect that: according to the distance between the air blowing slit and the hot glass, the included angle between the air blowing direction of the air blowing slit and the vertical direction and the distance between the two outermost air blowing slits of the same wind grid body, the distance between the two intersection lines formed by the intersection of the air curtain center surfaces of the two air curtains blown from the two air blowing slits of the same wind grid body with the air receiving surface of the hot glass is determined, so that a better cooling effect on the hot glass is obtained.

[0011] The application is further provided as follows: the numerical relationship between D1 and D2 satisfies D1=D2=W+2Htanθ.

[0012] The beneficial effect is that the distance between the wind curtain center surface of the wind curtain blown by the adjacent blowing slots on the plurality of air grating bodies of the same group of air grating bodies and the wind receiving surface of the hot glass is determined according to the distance between the blowing slots and the hot glass, the angle between the blowing direction of the blowing slots and the vertical direction, and the distance between the outermost two blowing slots on the same air grating body, so that the optimal cooling effect of the hot glass is obtained.

[0013] The utility model further sets up: the air grating group includes the upper air grating group of downward blowing and the lower air grate group of upward blowing, the hot glass is located between the upper air grating group and the lower air grating group, the upper air grating group and the lower air grating group include a plurality of parallel and interval arrangement's air grating body respectively, and the air grating body in the upper air grating group and the lower air grating group all blow towards the hot glass.

[0014] The beneficial effect is that the air grating group is divided into the upper air grating group and the lower air grating group, and the preferred distribution structure is described.

[0015] The utility model further sets up: still include the air pressure plate and the conveying roller way, be provided with an air pressure plate between any two adjacent air grating bodies in the upper air grating group, and the conveying roller way is used for supporting and conveying the hot glass.

[0016] The utility model further sets up: the value range of theta is: theta >= 20 DEG.

[0017] The beneficial effect is that the distance between the air grating bodies of the upper air grating group is large due to the air pressure plate, and the distance between the air grating bodies of the lower air grating group is large due to the roller way, so that the angle theta between the blowing direction of the blowing slots on the air grating body and the vertical direction is larger, and the hot glass is more evenly distributed.

[0018] The utility model further sets up: the value range of theta is: 20 DEG <= theta <= 30 DEG.

[0019] The beneficial effect is that the value of theta is too large, which leads to insufficient pressure of the wind curtain blowing to the surface of the hot glass, and the hot glass is more evenly distributed while the glass wind strength is ensured.

[0020] The utility model further sets up: be provided with the air -guide structure on the air grating body, the air -guide structure is located around the blowing slot, and the air -guide structure is used for guiding the cold wind blown from the blowing slot.

[0021] The beneficial effect is that the air -guide structure arranged at the blowing slot can guide the cold wind blown from the blowing slot, and can reduce the mutual influence of the cold wind blown from the adjacent two blowing slots of the plurality of blowing slots, so as to ensure the cooling effect of the hot glass.

[0022] The air guide structure is an air guide plate, two air guide plates are arranged on the same air grating body, and the two air guide plates are located between the two air blowing gaps at the outermost sides.

[0023] The beneficial effect is that two air guide plates are arranged between the two air blowing gaps of an air grating body, so that the influence between the air curtains of the two air blowing gaps of the same air grating body can be better isolated and reduced.

[0024] The air grating body further comprises an air equalizing plate, a plurality of through holes are formed in the air equalizing plate, and cold air is blown out from the air blowing gaps after passing through the air equalizing plate.

[0025] The beneficial effect is that the air equalizing plate is arranged, so that when cooling air enters the air grating body, the air pressure of each part of the air grating body in the length direction is more balanced, and the uniformity of the glass receiving wind is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the specification will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0027] Figure 1 It is a component structure diagram of the glass toughening equipment in the embodiment one of the present application.

[0028] Figure 2 It is a position distribution diagram of the air grating body in the upper air grating group in the embodiment one of the present application.

[0029] Figure 3 It is a structure diagram of the air grating body in the embodiment one of the present application.

[0030] Figure 4 It is Figure 3 It is a partial enlarged view of part A in the embodiment one of the present application.

[0031] Figure 5 It is a component structure diagram of the glass toughening equipment in the embodiment three of the present application.

[0032] Figure 6 It is a structure diagram of the air grating body in the embodiment three of the present application.

[0033] Figure 7 It is Figure 6 It is a partial enlarged view of part B in the embodiment three of the present application.

[0034] Figure 8 It is a structure diagram of the air grating body in the embodiment four of the present application.

[0035] In the figure: 1, hot glass; 2, conveying roller; 3, upper air grid group; 4, lower air grid group; 5, air grid body; 51, air blowing gap; 52, air guide structure; 53, air uniformizing plate; 6, air pressing plate. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. For easy description, the terms "vertical", "horizontal", "left", "right", "up", "down", "inner", "outer", "bottom" and the like used in the specification indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0037] It should be noted that the embodiments in the present application and the features involved in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0038] Embodiment one

[0039] As shown in the accompanying drawings, a glass toughening equipment with uniform air blowing comprises a conveying roller 2, an air pressing plate 6, an upper air grid group 3 and a lower air grid group 4. Figures 1-4 The conveying roller 2 is used for supporting and conveying the hot glass 1 along a specific direction.

[0040] The upper air grid group 3 and the lower air grid group 4 are respectively composed of a plurality of air grid bodies 5 which are parallel to each other and arranged at equal intervals, and the air grid bodies 5 in the upper air grid group 3 and the lower air grid group 4 are arranged along the conveying direction of the conveying roller 2.

[0041] The conveying roller 2 is arranged between the air grid bodies 5 of the lower air grid group 4, and the hot glass 1 is located on the conveying roller 2. In the process of moving of the hot glass 1 on the conveying roller 2, the air grid bodies 5 in the upper air grid group 3 blow air towards the lower side to cool the hot glass 1, and at the same time, the air grid bodies 5 in the lower air grid group 4 blow air towards the upper side to cool the hot glass 1.

[0042] The air grid body 5 is in the form of a long strip-shaped profile structure, and the material thereof can be selected as aluminum alloy. Two symmetrical air blowing gaps 51 are arranged on the air grid body 5 in the present application.

[0043]

[0044] ​The air blowing gap 51 is a long strip-shaped gap opened on the air baffle body 5, the length direction of which is the same as the length direction of the air baffle body 5, and the size and shape of the two air blowing gaps 51 on the same air baffle body 5 are completely the same. The cold air enters the air baffle body 5 and passes through the two air blowing gaps 51 to form an air curtain to blow to the hot glass 1.

[0045] In particular, the air curtain refers to the cooling air blown out through the air blowing gap 51, which is generally a sheet-shaped air curtain. In other embodiments, each air blowing gap 51 can also be composed of a plurality of short gaps arranged at intervals, and the short gaps in the two air blowing gaps 51 on the same air baffle body 5 are staggered to achieve the effect of fully covering the surface of the hot glass 1.

[0046] The air pressing plate 6 is horizontally arranged between any two adjacent air baffle bodies 5 in the upper air baffle group 3, and the structure of the air pressing plate 6 can be selected. The two ends of the air pressing plate 6 are respectively inclined and droop to the two sides.

[0047] In this embodiment, the distance between the two intersection lines formed by the intersection of the air curtain center planes of the two air curtains blown out from the two air blowing gaps 51 on the same air baffle body 5 and the wind receiving surface of the hot glass 1 is recorded as D1, and the distance between the two intersection lines formed by the intersection of the air curtain center planes of the two air curtains blown out from the two air blowing gaps 51 on the adjacent two air baffle bodies 5 and the wind receiving surface of the hot glass 1 is recorded as D2. The ratio of D1 to D2 is in the range of 0.9-1.1. It should be noted that the air blowing gap 51 has a certain width, so the sheet-shaped air curtain blown out from the air blowing gap 51 also has a certain thickness, and the air curtain center plane refers to the plane at the central position of the air curtain in the thickness direction. The ratio of D1 to D2 refers to the ratio of D1 to D2.

[0048] Optionally, in this embodiment, the value range of D1 is 30mm≤D1≤100mm; when D1=30mm, D2 can be 33mm or 30mm or 28mm; when D1=100mm, D2 can be 111mm or 100mm or 91mm. This setting ensures that the distance between the intersection lines formed by the air curtains blown out from the air blowing gaps 51 of all the air baffle bodies 5 in the upper air baffle group 3 and the lower air baffle group 4 and the surface of the hot glass 1 is close or equal, so that the distribution of the wind receiving area of the hot glass 1 at each moment during the wind receiving process is more uniform, and the hot glass 1 can be blown more uniformly or completely uniformly, thereby ensuring the quality of the hot glass 1.

[0049] Embodiment two

[0050] On the basis of the embodiment one, the angle between the blowing direction of the blowing gap 51 and the vertical direction is denoted as θ, the distance between the two blowing gaps 51 on the same air curtain body 5 is denoted as W, and the distance between the blowing gap 51 and the hot glass 1 is denoted as H. The specific position of the air curtain body 5 can be arranged by using the numerical relationship of D1=W+2Htanθ, wherein the value range of θ is θ≥20°. The distance between the two blowing gaps 51 on the same air curtain body 5 refers to the distance between the center lines of the air outlet surfaces of the two blowing gaps 51. The distance H between the blowing gap 51 and the hot glass 1 refers to the distance between the center line of the air outlet surface of the blowing gap 51 and the surface of the hot glass 1 to be blown. The blowing direction of the blowing gap 51 coincides with the center plane of the air curtain.

[0051] According to the distance between the blowing gap 51 and the hot glass 1, the angle between the blowing direction of the blowing gap 51 and the vertical direction, and the distance between the two blowing gaps 51 on the same air curtain body 5, the distance between the two intersection lines formed by the intersection of the center planes of the two air curtains blown from the two blowing gaps 51 of the same air curtain body 5 and the wind-receiving surface of the hot glass 1 is determined, so as to obtain a better cooling effect on the hot glass 1. Moreover, because the distance between the air curtain bodies 5 of the upper air curtain group 3 is large due to the arrangement of the air pressure plates 6, and the distance between the air curtain bodies 5 of the lower air curtain group 4 is large due to the arrangement of the conveying roller way 2, the angle θ between the blowing direction of the blowing gap 51 on the air curtain body 5 and the vertical direction is larger, and the arrangement is more likely to achieve the goal of making the wind-receiving distribution of the hot glass 1 more uniform.

[0052] Further, in actual production, it is found that when the value range of θ is 20°≤θ≤30°, the tempering effect of the hot glass 1 is best. This is because too large θ will result in too small vertical air pressure of the air curtain blown to the surface of the hot glass 1. The range of 20°≤θ≤30° is arranged, which is more likely to achieve the goal of making the wind-receiving distribution of the hot glass 1 more uniform, while taking into account the wind pressure and strength of the hot glass 1.

[0053] Therefore, when the hot glass 1 moves on the conveying roller way 2, the glass tempering equipment with the parameters of the distance between the blowing gap 51 and the hot glass 1, the angle between the blowing direction of the blowing gap 51 and the vertical direction, and the distance between the adjacent two air curtain bodies 5, which are accurately calculated, has excellent cooling effect on the hot glass 1, so as to improve the tempering effect of the hot glass 1 and produce excellent tempered glass.

[0054] In other embodiments, more preferably, D1 = D2 = W + 2Htanθ, the numerical relationship of D1 = D2 = W + 2Htanθ can be used to arrange the specific positions of all the air grating bodies 5. According to the distance between the air blowing gap 51 and the hot glass 1, the angle between the air blowing direction of the air blowing gap 51 and the vertical direction, and the distance between the two air blowing gaps 51 on the same air grating body 5, the distance between the intersection line formed by the intersection of the air curtain center plane of the air curtain blown by the adjacent air blowing gaps 51 on the plurality of air grating bodies 5 of the same group of air grating bodies 5 and the wind receiving surface of the hot glass 1 is determined, so as to obtain the best cooling effect on the hot glass 1.

[0055] Embodiment three

[0056] As shown in the accompanying Figures 5-7 The glass toughening equipment disclosed by the utility model has uniform air blowing, and is different from embodiment one in that each air grating body 5 is provided with a wind guide structure 52.

[0057] The wind guide structure 52 is located around the air blowing gap 51, so as to guide the cold air blown from the air blowing gap 51 and reduce the mutual influence of the cold air blown from the two air blowing gaps 51.

[0058] Specifically, the wind guide structure 52 in the embodiment is a wind guide plate. The wind guide plate is a long strip-shaped plate structure, and the length thereof is adapted to the length of the air blowing gap 51 on the air grating body 5. Two wind guide plates facing each other are arranged on the same air grating body 5, and the two wind guide plates are located between the two air blowing gaps 51 and close to the air blowing gaps 51. The wind guide plate can be vertically arranged or obliquely arranged. In the embodiment, the oblique direction of the wind guide plate is adapted to the oblique angle of the air blowing gap 51, so as to guide the cold air flow to the greatest extent and guarantee the cooling effect on the hot glass 1.

[0059] In other embodiments, only one wind guide plate can be arranged between the two air blowing gaps 51, and the single wind guide plate can be arranged at the middle position between the two air blowing gaps 51.

[0060] Embodiment four

[0061] As shown in the accompanying Figure 8 The utility model further discloses a glass toughening equipment using the air grating body, and is different from embodiment three in that the air grating body 5 is further provided with an air equalizing plate 53.

[0062] The uniform air plate 53 is a flat plate structure, which is matched with the air baffle body 5 in size and is fixed inside the air baffle body 5. A plurality of circular or other shape through holes are formed on the uniform air plate 53, and the cold air in the air baffle body 5 can only pass through the through holes on the uniform air plate 53 and then blow to the hot glass 1 from the air blowing gap 51. Therefore, the uniform air plate 53 has certain adjusting effect on the air volume passing through the air blowing gap 51 and the air pressure balance degree at different positions.

[0063] In some other embodiments, two or more layers of the uniform air plate 53 containing through holes with different shapes and sizes and at different positions can be arranged in the air baffle body 5 according to actual situation, so as to further balance the air pressure at different positions inside the air baffle body 5.

[0064] It should be noted that the distance relationship between the intersection line of the center plane of the air curtain blown by the adjacent air blowing gap of the plurality of air baffle bodies and the glass wind receiving surface, i.e. the value range of the ratio of D1 to D2 in the above described embodiments refers to the distance relationship between the intersection line of the center plane of the air curtain blown by the adjacent air blowing gap of the plurality of air baffle bodies on the same side of the glass and the glass wind receiving surface.

[0065] Although the preferred embodiments of the present application have been described, those skilled in the art who know the basic creative concept can make further changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application. Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and changes of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and changes.

Claims

1. A glass tempering device with uniform airflow for cooling hot glass (1), comprising an air grating assembly, the air grating assembly comprising a plurality of spaced air grating bodies (5), each air grating body (5) having a plurality of airflow gaps (51), and all air grating bodies (5) blowing air toward the hot glass (1), characterized in that, The distance between the two lines formed by the intersection of the center planes of the two air curtains blown from the two outermost air gaps (51) on the same air grating body (5) with the air-receiving surface of the hot glass (1) is D1. The distance between the two lines formed by the intersection of the center planes of the two air curtains blown from the two adjacent air gaps (51) on two adjacent air grating bodies (5) with the air-receiving surface of the hot glass (1) is D2. The ratio of D1 to D2 is in the range of 0.9-1.

1.

2. The glass tempering equipment with uniform air blowing according to claim 1, characterized in that, The angle between the blowing direction of the air-blowing gap (51) and the vertical direction is θ. The distance between the two outermost air-blowing gaps (51) on the same air grating body (5) is W. The distance between the air-blowing gap (51) and the hot glass (1) is H. D1 = W + 2Htanθ.

3. The glass tempering equipment with uniform air blowing according to claim 2, characterized in that, The numerical relationship between D1 and D2 satisfies: D1=D2=W+2Htanθ.

4. The glass tempering equipment with uniform air blowing according to any one of claims 1-3, characterized in that, The air grating group includes an upper air grating group (3) that blows air downwards and a lower air grating group (4) that blows air upwards. The hot glass (1) is located between the upper air grating group (3) and the lower air grating group (4). The upper air grating group (3) and the lower air grating group (4) each include a plurality of air grating bodies (5) that are parallel to each other and spaced apart. The air grating bodies (5) in the upper air grating group (3) and the lower air grating group (4) all blow air towards the hot glass (1).

5. The glass tempering equipment with uniform air blowing according to claim 4, characterized in that, It also includes an air pressure plate (6) and a conveyor roller (2). An air pressure plate (6) is provided between any two adjacent air grid bodies (5) in the upper air grid group (3). The conveyor roller (2) is used to support and convey hot glass (1).

6. The glass tempering equipment with uniform air blowing according to claim 2, characterized in that, The range of values ​​for θ is: θ≥20°.

7. The glass tempering equipment with uniform air blowing according to claim 6, characterized in that, The range of θ is: 20°≤θ≤30°.

8. The glass tempering equipment with uniform air blowing according to claim 1, characterized in that, The wind grating body (5) is provided with a wind guide structure (52), which is located around the air blowing gap (51) and is used to guide the cold air blown out from the air blowing gap (51).

9. The glass tempering equipment with uniform air blowing according to claim 8, characterized in that, The air guide structure (52) is an air guide plate. Two air guide plates are arranged facing each other on the same air grid body (5), and the two air guide plates are located between the two outermost air blowing gaps (51).

10. The glass tempering equipment with uniform air blowing according to claim 1, characterized in that, The wind grating body (5) is also provided with a wind distribution plate (53), which has multiple through holes. After passing through the wind distribution plate (53), the cold air is blown out from the air blowing gap (51).

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