CN220034330U - Toughened glass guiding air knife - Google Patents

Abstract

The utility model discloses a toughened glass guiding air knife, which comprises an air outlet end part of an upper knife body and an air outlet end part of a lower knife body, wherein at least one row of independent convex upper guiding nozzles and one row of independent convex lower guiding nozzles are respectively and correspondingly connected; the end parts of the air outlet holes of the upper guide nozzle and the lower guide nozzle are opposite to each other; the air outlet holes of the upper and lower guide nozzles are respectively communicated with the air cavities of the upper and lower cutter bodies correspondingly. In the work, especially when the high-temperature glass with the thickness less than or equal to 2 mm is fully tempered, the upper surface and the lower surface of the moving high-temperature glass are sprayed with guide cooling air through the independent convex upper guide nozzle and the independent convex lower guide nozzle to carry out air cooling tempering, and hot air flows generated after the high-temperature glass is cooled and tempered are respectively and smoothly circulated and discharged outwards through air channels between the independent convex guide nozzles of the upper cutter body and the independent convex lower guide nozzle. The surface of the toughened glass is cooled uniformly, and the deformation of the end surface of the toughened glass is eliminated. The defect that the prior art prevents high-temperature glass from being rapidly cooled to generate a hot air cushion layer is overcome, the power of a fan is reduced, and the cooling air quantity is reduced by 15%.

Description

Toughened glass guiding air knife

Technical Field

The utility model relates to a toughened glass air cooling device; in particular to a toughened glass guiding air knife.

Background

The toughened glass air knife in the prior art has the structure that an air outlet hole is directly formed in the end face of the upper knife body and the lower knife body, which is used for outwards discharging air. In operation, the high-temperature glass is conveyed and moved to the air outlet holes of the upper cutter body and the lower cutter body through the conveying roller, and the cooling air sprayed outwards from the air outlet holes of the upper cutter body and the lower cutter body is used for carrying out air cooling tempering on the upper surface and the lower surface of the moved high-temperature glass. In general, when high-temperature glass with the thickness of more than or equal to 3.2 millimeters is toughened, a wind shield is additionally arranged at the front end of a toughening station of toughened glass equipment so as to prevent the uneven cooling of turbulent cooling air on the surface of the end part of the high-temperature glass from deforming, thereby realizing the full toughening of the high-temperature glass. But cannot fully temper the high-temperature glass with the thickness less than or equal to 2 mm, because the thinner high-temperature glass is very sensitive to turbulent cooling wind generated in the tempering process, uneven cooling temperature on the surface of the high-temperature glass often causes the surface deformation of the end part of the high-temperature glass. Although the wind shield is installed, the space through which high-temperature glass moves is always reserved at the periphery of the upper air knife and the lower air knife, so that the wind shield cannot completely block turbulent cooling air, and deformation of the end surface of the toughened glass cannot be eliminated. In general, the thinner the thickness of the high-temperature glass, the greater the deformation of the end surface thereof. Therefore, the deformation of the surface of the end part of the high-temperature glass with the toughened thickness less than or equal to 2 mm is eliminated, and the method is a problem to be solved urgently in the toughened glass industry at home and abroad.

In addition, because the space of outwards airing exhaust around the upper cutter body and the lower cutter body is narrow, the disordered hot air flow generated after cooling the surface of the high-temperature glass is difficult to outflow and discharge, so that a hot air cushion layer is formed between the moving high-temperature glass surface and cooling air sprayed out by the air outlet holes of the upper cutter body and the lower cutter body, the hot air cushion layer prevents the cooling air from rapidly cooling the surface of the high-temperature glass, and the cooling tempering of the high-temperature glass can be finished only by increasing the power of a fan to improve the cooling air quantity.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a toughened glass guiding air knife which aims at eliminating the deformation of the end surface of toughened glass and reducing the power of a fan.

In order to achieve the above purpose, the technical scheme of the utility model is realized in such a way that the toughened glass guiding air knife comprises an upper knife body and a lower knife body; the air outlet ends of the upper cutter body and the lower cutter body are respectively and correspondingly connected with at least one row of independent convex upper guide nozzles and lower guide nozzles; the end parts of the air outlet holes of the upper guide nozzle and the lower guide nozzle are opposite to each other; the air outlet holes of the upper and lower guide nozzles are respectively communicated with the air cavities of the upper and lower cutter bodies correspondingly.

Preferably, the air outlet ends of the upper cutter body and the lower cutter body are respectively correspondingly connected with two rows of independent convex upper guide nozzles and lower guide nozzles; wherein each row of independent convex upper and lower guide nozzles is spaced between the other row of two adjacent independent convex upper and lower guide nozzles.

Preferably, the upper and lower guide nozzles of the independent convex shape are upright or inclined.

Preferably, the air outlet ends of the upper and lower guide nozzles are arranged at a < shape inclined opposite interval.

Preferably, the included angle alpha between the centers of the air outlet holes of the upper and lower guide nozzles which are independently convex and the vertical centers of the air outlet ends of the upper and lower cutter bodies is 0-90 degrees.

Preferably, the upper cutter body and the lower cutter body are respectively connected from the air inlet ends of the upper air cavity and the lower air cavity to the air inlet end.

The utility model adopts the structure that the air outlet end parts of the upper cutter body and the lower cutter body are respectively correspondingly connected with an independent convex upper guide nozzle and an independent convex lower guide nozzle. Particularly, when the high-temperature glass with the thickness less than or equal to 2 mm is fully tempered, the upper and lower surfaces of the moving high-temperature glass are sprayed with guide cooling air through the upper and lower guide nozzles with independent protrusions for carrying out air cooling tempering, and hot air flows generated after the high-temperature glass is cooled and tempered are respectively and smoothly circulated and discharged outwards through air channels between the independent protrusion guide nozzles of the upper and lower cutter bodies. The surface of the toughened glass is cooled uniformly, and the deformation of the end surface of the toughened glass is eliminated. The defect that the prior art prevents high-temperature glass from being rapidly cooled to generate a hot air cushion layer is overcome, the power of a fan is reduced, and the cooling air quantity is reduced by 15%.

Drawings

Fig. 1 is a view of an embodiment of the present utility model with partial cross-sections of the upper and lower cutter bodies 1, 2.

Fig. 2 is an enlarged view of A-A of the upper and lower cutter bodies 1, 2 of fig. 1 in cross section according to the present utility model.

Fig. 3 is an enlarged view of the lower blade body 2 of fig. 1 in the B-B direction according to the present utility model.

Fig. 4 is an enlarged view of the upper blade body 1 of fig. 1 from the C-C direction according to the present utility model.

Fig. 5 is an enlarged view of the utility model at I in fig. 1.

Fig. 6 is an enlarged view of the present utility model at II in fig. 2.

Fig. 7 is an enlarged view of the utility model at III in fig. 4.

Fig. 8 is an enlarged perspective view of the present utility model with a break line of fig. 1.

Fig. 9 is an enlarged view of the utility model at IV in fig. 8.

Fig. 10 is a schematic view of the present utility model in an operating state of tempered glass.

In the above figures, the name-part numbers are as follows: an upper cutter body-1; an upper nozzle-1-1; upwind cavity-1-2; a lower cutter body-2; a lower nozzle-2-1; a downwind cavity-2-2; and a transfer roller-3.

Detailed Description

The principles and features of the present utility model are described in detail below with reference to the accompanying drawings. It should be noted that: the examples are given for the purpose of illustration only and are not intended to limit the scope of the utility model.

The toughened glass guiding air knife (shown in figures 1-10) comprises an upper knife body 1 and a lower knife body 2; generally, two rows of independent oblique convex upper and lower guide nozzles 1-1, 2-1 (shown in fig. 2-6) are respectively and correspondingly connected to the air outlet end surfaces of the upper and lower cutter bodies 1, 2; wherein each row of independently sloped and raised upper and lower guide nozzles 1-1, 2-1 is spaced between the other row of two adjacent independently sloped and raised upper and lower guide nozzles 1-1, 2-1 (shown in fig. 3, 4, 7). The upper guide nozzles 1-1 and the lower guide nozzles 2-1 which are arranged on the upper cutter body and the lower cutter body and are independent and protruding are arranged at intervals and are closely staggered, so that dense guide cooling air is sprayed on the upper surface and the lower surface of the high-temperature glass during operation, the surface of the high-temperature glass is uniformly cooled, the internal stress is reduced, and the surface of the end part of the toughened glass is ensured not to deform. The hot air flow generated after the surface of the high-temperature glass is cooled and tempered is smoothly circulated and discharged outwards through the air channels between the upper guide nozzle 1-1 and the lower guide nozzle 2-1 which are respectively in the shape of independent inclined protrusions of the upper cutter body and the lower cutter body (shown in figures 3, 4, 6, 7 and 10).

The included angle alpha between the centers of the air outlet holes of the upper and lower guide nozzles 1-1 and 2-1 which are independently inclined and convex and the vertical centers of the air outlet end surfaces of the upper and lower cutter bodies 1 and 2 is 26 degrees (shown in figure 6).

According to different air-cooled tempering requirements, the upper and lower guide nozzles with independent protrusions can also be arranged in an upright shape, and the included angle alpha is 0 degree (not shown in the figure and shown in reference to fig. 6).

The end parts of the air outlet holes of the upper and lower guide nozzles 1-1 and 2-1 are in a < shape inclined opposite direction interval (shown in figures 2 and 6); the air outlet holes of the upper and lower guide nozzles 1-1, 2-1 are respectively communicated with the upper and lower air chambers 1-2, 2-2 of the upper and lower cutter bodies 1, 2 (shown in fig. 2, 6).

In order to effectively utilize the distribution of the cooling air volume, the upper and lower cutter bodies 1, 2 are generally connected from the air inlet ends to the air inlet ends of the upper and lower air chambers 1-2, 2-2 (shown in fig. 1).

The utility model is generally mounted on a frame of a tempering station of a tempered glass processing apparatus. In operation, the conveying roller 3 sequentially conveys the high-temperature glass to the air outlet holes (shown by arrows in fig. 10) of the guide nozzles 1-1 and 2-1 of the first to fourth pairs of upper and lower cutter bodies along the K direction, the upper and lower guide nozzles spray guide cooling air to the front of the upper and lower surfaces of the moving high-temperature glass for tempering, the guide cooling air cools and toughens the upper and lower surfaces of the high-temperature glass and then outwards and reversely blows out hot air streams formed, and the hot air streams are outwards and smoothly circulated and discharged through air channels between the guide nozzles 1-1 and 2-1 of the first to fourth pairs of upper and lower cutter bodies (shown in fig. 3, 4, 7 and 10). Particularly, for all-tempered glass with the processing thickness less than or equal to 2 mm, the uniform cooling of the surface of the tempered glass is realized, and the deformation of the surface of the end part of the tempered glass is eliminated. The hot air cushion layer generated by the prior art for preventing the high-temperature glass from being rapidly cooled is solved, the power of a fan is reduced, and the cooling air quantity is reduced by 15%.

The foregoing is only a preferred embodiment of the present utility model. It should be noted that: it will be apparent to those skilled in the art that, by substantially the same means, substantially the same functions are achieved, substantially the same effects are achieved, other technical features which can be obviously imagined without the need of creative efforts, and several variations and/or improvements in substantially the same way can be substituted, and these variations should be regarded as equivalent features within the scope of protection of the patent of the present utility model.

Claims (6)

1. A toughened glass guiding air knife comprises an upper knife body and a lower knife body; the method is characterized in that: at least one row of independent convex upper and lower guide nozzles are respectively and correspondingly connected at the air outlet end parts of the upper and lower cutter bodies; the end parts of the air outlet holes of the upper guide nozzle and the lower guide nozzle are opposite to each other; the air outlet holes of the upper and lower guide nozzles are respectively communicated with the air cavities of the upper and lower cutter bodies correspondingly.

2. The toughened glass guide air knife of claim 1, wherein: two rows of independent convex upper and lower guide nozzles are respectively and correspondingly connected at the air outlet end parts of the upper and lower cutter bodies; wherein each row of independent convex upper and lower guide nozzles is spaced between the other row of two adjacent independent convex upper and lower guide nozzles.

3. A toughened glass guide air knife as claimed in claim 1 or claim 2 wherein: the upper and lower guide nozzles of the independent convex shape are vertical or inclined.

4. A toughened glass guide air knife as claimed in claim 3 wherein: the end parts of the air outlet holes of the upper guide nozzle and the lower guide nozzle are in a < shape inclined opposite direction interval.

5. A toughened glass guide air knife as claimed in claim 3 wherein: the included angle alpha between the centers of the air outlet holes of the upper and lower guide nozzles which are independently convex and the vertical centers of the air outlet ends of the upper and lower cutter bodies is 0-90 degrees.

6. A toughened glass guide air knife as claimed in claim 3 wherein: the upper cutter body and the lower cutter body are respectively connected from the air inlet ends of the upper air cavity and the lower air cavity to the air inlet end.