CN205011629U

CN205011629U - Air grid under tempering

Info

Publication number: CN205011629U
Application number: CN201520764491.7U
Authority: CN
Inventors: 王鹏田; 李玉霞
Original assignee: SHANDONG RUITAI GLASS INSULATOR CO LTD
Current assignee: SHANDONG RUITAI GLASS INSULATOR CO LTD
Priority date: 2015-09-29
Filing date: 2015-09-29
Publication date: 2016-02-03
Anticipated expiration: 2025-09-29

Abstract

The utility model provides an air grid under tempering, it includes bellows and sets up the lower air grid bearing of bellows lower extreme, bellows are the umbrella disk form, a plurality of gas holes have been seted up to the umbrella disk form department equipartition of bellows, lower air grid bearing is cavity describes, and with the bellows intercommunication. It is through setting bellows to the umbrella disk form, and a plurality of gas holes have been seted up to the umbrella disk form department equipartition of bellows to replace air grid under tempering's among the prior art copper tuyere, solved among the prior art down copper the tuyere partially fried or problem blown up occasionally on the air grid, reduced the change frock in addition, improved air grid under tempering's life, guaranteed the tempering position a little of drying, and then improved the quality and the output of product.

Description

Air grid under a kind of tempering

Technical field

The utility model relates to a kind of glass insulator machine-shaping device, air grid under especially a kind of tempering.

Background technology

Toughened glass is to close softeningization temperature by glass heats, at this moment VISCOUS FLOW state is in, this temperature range we be called tempering temperature scope (620 DEG C-640 DEG C), held for some time, then quenching, underdraw the temperature variation of toughened glass in heating and quench process and stress forming process below.

A. the heating phase is started: sheet glass enters annealing furnace by room temperature and heats, due to the poor conductor that glass is heat, so now internal layer temperature is low, exospheric temperature is high, and skin starts to expand, internal layer does not expand, so the suppression surface that now outer field expansion is subject to internal layer creates temporary transient stress, central core is tension stress, because the compression strength of glass is high, although so rapid heating, sheet glass is not broken yet.

B. continue the heating phase: glass continues heating, the glass ectonexine temperature difference to reduce etc. when ectonexine all reaches tempering temperature equal stress in sheet glass.

C. quench cooling phase (before starting blowing 1.5-2 second) is started: sheet glass enters air grid by annealing furnace and dries, core temperature is reduced under surface layer temperatures, surface starts to shrink, and central core does not shrink, so the contraction of upper layer is subject to the suppression of central core, make upper layer be subject to temporary transient tension stress, central core forms stress.

D. quench cooling phase is continued: the further quenching of glass ectonexine, surface layer of glass hardens (temperature has dropped to less than 500 DEG C), stop shrinking, at this moment internal layer also begins to cool down, shrinks, and the upper layer hardened inhibits the contraction of internal layer, result makes upper layer create stress, and defines tension stress at internal layer.

E. continue quenching (in 12 seconds) glass ectonexine temperature to reduce all further, inner layer glass drops to about 500 DEG C at this moment, shrink and accelerate, in this stage outer field stress, the tension stress of internal layer basically forms, but central core is also softer, depart from VISCOUS FLOW state not yet completely, so be not also final stressed condition.

F. tempering completes (in 20 seconds) this stage internal and external layers of glass tempering all completely, and the ectonexine temperature difference reduces, and the final stress of toughened glass is formed, and namely outside surface is stress, and internal layer is tension stress.

As shown in Figure 1,, there is self-destruction because glass insulator 5 product has portioned product when tempering in the problem under tempering used in prior art existing for air grid, has partially fried or blow up phenomenon during copper tuyere 1 on lower air grid, the direct tempering effect affecting product, affects quality product and output.

Utility model content

The object of utility model is for overcoming above-mentioned the deficiencies in the prior art, provides air grid under a kind of tempering.It is by being arranged to umbrella disk shape by bellows, the umbrella disk shape place of bellows is uniform offers some gas holes, thus the copper tuyere of air grid under tempering in replacement prior art, problem that is partially fried or that blow up is had when solving the copper tuyere in prior art on lower air grid, and decrease replacing frock, improve the work-ing life of air grid under tempering, ensure that the position of tempering blast points, and then improve the Quality and yield of product.

For achieving the above object, the utility model adopts following technical proposals: air grid under a kind of tempering, it comprises bellows and is arranged on the lower air grid bearing of described bellows lower end, described bellows are umbrella disk shape, the umbrella disk shape place of described bellows is uniform offers some gas holes, described lower air grid bearing is hollow form, and is communicated with described bellows.

Preferably, described lower air grid bearing lower end is also provided with base, and described base is communicated with described lower air grid bearing.

Preferably, described bellows are made up of metal sheet, and described bellows symmetrically umbrella disk shape.

Preferably, it also comprises air pump, and described air pump is communicated with described bellows by described lower air grid bearing.

The beneficial effects of the utility model are:

1, the utility model is by being arranged to umbrella disk shape by bellows, the umbrella disk shape place of bellows is uniform offers some gas holes, thus the copper tuyere of air grid under tempering in replacement prior art, problem that is partially fried or that blow up is had when solving the copper tuyere in prior art on lower air grid, and decrease replacing frock, improve the work-ing life of air grid under tempering, ensure that the position of tempering blast points, and then improve the Quality and yield of product.

2, the utility model structure is simple, decreases component and but can reach better effect, and then save device fabrication cost, and greatly increase the m of e time, improves work-ing life.

3, the utility model is reasonable in design, and structure is ingenious, is applicable to batch production.

Accompanying drawing explanation

Fig. 1 is the structural representation of air grid under tempering of the prior art;

Fig. 2 is the structural representation of air grid under a kind of tempering of providing of the utility model.

Wherein copper valve 1, bellows 2, lower air grid bearing 3, base 4, glass insulator 5.

Embodiment

Here it should be noted that, the described noun of locality is left and right, upper and lower is all define for benchmark with the view shown in Fig. 1, should be appreciated that the protection domain that the use of the described noun of locality should not limit the application and asks.

Below in conjunction with drawings and Examples, the utility model is further illustrated.

As shown in Figure 2, air grid under a kind of tempering, it comprises bellows 2 and is arranged on the lower air grid bearing 3 of described bellows 2 lower end, described bellows 2 are in umbrella disk shape, the umbrella disk shape place of described bellows 2 is uniform offers some gas holes, and described lower air grid bearing 3 in hollow form, and is communicated with described bellows 2.The utility model is by being arranged to umbrella disk shape by bellows 2, the umbrella disk shape place of bellows 2 is uniform offers some gas holes, thus the copper tuyere 1 of air grid under tempering as shown in Figure 1 in replacement prior art, problem that is partially fried or that blow up is had when solving the copper tuyere 1 in prior art on lower air grid, and decrease replacing frock, improve the work-ing life of air grid under tempering, ensure that the position of tempering blast points, and then improve the Quality and yield of product, and lower air grid bearing 3 plays the effect supporting bellows 2 and be communicated with air flue, Stability Analysis of Structures is reasonable.

As shown in Figure 2, on technique scheme basis, described lower air grid bearing 3 lower end is also provided with base 4, and described base 4 is communicated with described lower air grid bearing 3, base plays fixing overall effect, firm stable, and connection air flue, ensure the use of its normal function.

As shown in Figure 2, on technique scheme basis, described bellows 2 are made up of metal sheet, and described bellows 2 symmetrically umbrella disk shape, metal sheet ensures the permanent of its work-ing life, durable, need not often keep in repair or maintain, and symmetrically structure, and then be convenient to process for processing, be suitable for batch production.

As shown in Figure 2, on technique scheme basis, the utility model also comprises air pump, and described air pump is communicated with described bellows 2 by described lower air grid bearing 3, and air pump provides sufficient gas for the utility model, ensures the use of its normal function.

Principle of work

Composition graphs 1 and Fig. 2 illustrate principle of work of the present utility model, the utility model is by being arranged to umbrella disk shape by bellows 2, the umbrella disk shape place of bellows 2 is uniform offers some gas holes, and provide sufficient gas by air pump, again through base 4 to lower air grid bearing 3, gas enters bellows 2, the gas hole of gas again by bellows 2 are offered, air blowing cooling processing is carried out to glass insulator 5 to be processed, thus the copper tuyere 1 of air grid under tempering as shown in Figure 1 in replacement prior art, problem that is partially fried or that blow up is had when solving the copper tuyere 1 in prior art on lower air grid.

By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.

Claims

1. air grid under a tempering, it is characterized in that: it comprises bellows (2) and is arranged on the lower air grid bearing (3) of described bellows (2) lower end, described bellows (2) are in umbrella disk shape, the umbrella disk shape place of described bellows (2) is uniform offers some gas holes, described lower air grid bearing (3) in hollow form, and is communicated with described bellows (2).

2. air grid under a kind of tempering according to claim 1, is characterized in that: described lower air grid bearing (3) lower end is also provided with base (4), and described base (4) is communicated with described lower air grid bearing (3).

3. air grid under a kind of tempering according to claim 1, is characterized in that: described bellows (2) are made up of metal sheet, and described bellows (2) symmetrically umbrella disk shape.

4. air grid under a kind of tempering according to claim 1, is characterized in that: it also comprises air pump, and described air pump is communicated with described bellows (2) by described lower air grid bearing (3).