DE1930250C - Method and device for handling your glass panes in a vertical position - Google Patents

Description

15. The device according to claim 14, characterized in that the gas boxes (102) fn de)

, 50 bending zone are arranged interchangeably, urr the device to be able to set up the desired curvature of the glass pane.

16. Device according to one of claims f to 15, characterized in that the gas

r, i outlet area of each gas box (201) is provided with recesses or channels (206) for discharging gas from the gap (4).

! 7. Device according to claim 16, dadurcl marked, dal. ' the recesses or channels

fi "nlets for the discharge of the gas and the gas outlet si'-linurigen are arranged in rows, which zui '■! oii / .c.niak-n ivneui! or 'tied. r »estaffel

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When the carrier moves, the hot gas streams conducted over its surface exert forces on the pane of glass which counteract any deviation from the vertical position. ~ "

It is known from US Pat. Nos. 3,223,506 and 3,334,312 to support a pane of glass in the vertical position at its lower edge and to conduct hot gas along the two surfaces in order to keep the pane of glass in its vertical position.

The carrier for the glass pane is moved in the horizontal direction. In support of the Effect of the gas flows, these deflecting baffles are provided that move inwards and upwards directed extend. This way of guiding the gas streams, however, results in a uniform treatment the surface of the glass pane cannot be reached.

The invention is based on the object of further developing the method mentioned at the beginning, that if the vertical position of the glass pane is properly secured, it will be treated uniformly their surfaces due to the hot gases is guaranteed.

This object is achieved according to the invention in that the gas flows are more active, the gas surfaces. Be directed 2j and the carrier in the Senkrechterbewegt is such that by the Interrogator gemeinsame- movement of 1 and the glass sheet along de "GIa: - oberfläehe flowing Gasstrornt entsteher ,. By directed against the Giasoberliäche Gassl ÖN ^r ·." * c takes place a uniform treatment de- Obertiächen de: glass, while the achieved vertically by the vertical movement of the carrier: · ^Ko:: '>r> nent ·? of the gas flow unites, sufficient Stm: · - exerts force to the glass pane in its vertical 3 · -. I hold acc / υ

Ir. further embodiment of the process according to the invention. in which a flat glass sheet in a: is bent predetermined shape by held ir · vertical direction in a Bi ^ gestatirr: is egt loading ic ν ^1, is provided that on the carrier · supported sheet of glass in its vertical movement. through surfaces facing in it from vertical; .next to the hollow walls arranged in front of it.e openings held by hot gas streams ν rc. οκ · λ; Gas supplied to the hollow balls of the hollow walls comes from, and the facing surfaces containing the flutes in the border area are so s;! - aei>i'de ^: that a gradual bending of the glass into the desired shape takes place .

In the Gegen'al / to the known '-' experienced who need to be able to move relative to one another is based on inpatient facilities worked.

According to a further feature of the invention is ^; provided that, following the heat treatment with the hot gases, by rushing through cold OasstriimeU r.ecen da v-, hurry; to -ei ^:! real! ^! -, - '· .. · ei; Cdav.chcihe die ^ e diMw quick cooling! ·. · '· _; · ^! · ^: Ί: ·; ι · ^:

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Both surfaces of the pane of glass, which act and hold them in the vertical position, cause gas flows.

Such a device is characterized by this. that the conveyor conveys the glass sheet vertically through the gap and the neighboring ones Walls supplied by the gas supply, directed against the GHs surface gas outlet openings.

Further refinements of devices according to the invention emerge from the subclaims.

In the drawing, exemplary embodiments of devices according to the invention are shown. In the drawing is

F i g. 1 is a vertical section through a first embodiment of a device according to the invention,

F i g. 2 is a cross section along the line 2-2 of FIG. 1.

F i g. ? a view of a ^c lkrechten conveyor for the device according to the F i g. 1 un: 2.

F i g. 4 shows a side view of FIG. 3,

F i g. 5 is a schematic perspective view of the gas box of a second embodiment of a Vi-'ichuirüT for tucking and hardening glass sheets.

F i g. '! a horizontal cross section through a gas box pair within dt ^r bending zone of Ausüih rungsfurm by F ι ti. 5.

Fig. "Ein schematise!" ·: View of an anuerer. Execution of a vertical conveyor :: ".- ichtuns :.

F i _ £>: a personal representation of an execution form of a Grand Asia.

Flu- '' - _irtc perspe> .ii \ is .- ;; c representation ei ^: vr other Aüsfürirungsforn a ■>. Gas box,

10 shows a personal representation of a white / vusführungi.irm of a gas box.

F ί [I 1 ί a perspective view of another As an embodiment of a gas locker

F ί g. 12 is a front view of F i α. 10,

F i c. 13 a horizontal section d'irch another Execution form of a gas box and

14 shows an end view of FIG. 13th

The device shown in Figs. 1 and 2 for Treatment of panes of glass includes a heating zone. and a cooling zone. The chase zone contains several Ga .ümcr 2 which are arranged in pairs on top of each other;.! ·, Where: each pair falls apart Gav.-jsiriUsflachcn 3, the gas outlet surfaces 3 define a vertical gap 4 through which the glass panes are frozen. the

'ih! /.> ne consists of gas locker 5, which are in the same A'eise v, ic you gas lockers the hot? / < are formed and are opposite each other. · Gas leaks - swear ο show. which is an extension of the gap 4 limit.

F ine -internal Fordeieeinrichtung existing; aus / vsci enJiuveli chains 7 v-ru ' H.; iri detien "with elek'hem

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Ralimcnträcrn F adjustable and clamped with these at the desired point by screws 11.

A supply line 14 for hot gas is connected to a Ausgieichskastcn 13, from which supply lines 12 lead to the gas lockers 2 of each pair, see chap

The compensation box 13 is divided into two chambers 13 'and 13 b by a vertical perforated plate 15, so that the gas fed through the feed line 14 of the chamber 13' enters the chamber 13 b through the perforated plate 15, whereby a uniform pressure distribution in Chamber 13 / »is achieved. As a result, a substantially uniform gas supply to the gas boxes 2 via the supply lines 12 is achieved.

In order to maintain even pressure in the gas boxes 2 of each pair, these are connected to one another via a line 16. This line contains flanges 17 with not shown Screws to be able to easily change every single gas locker. Allow the lines 16 an unrestricted exchange of gas between the gas tubes 2 of each pair, as a result of which in both equal pressure is maintained.

The gas fed to each gas box 2 escapes through the gas outlet openings in the gas outlet area 3. The size of the gas outlet openings and their distribution over the gas outlet area is like this chosen so that the exit takes place in a substantially evenly distributed manner.

To ensure an even distribution of the gas support, a diffuser plate is in each gas chamber 2 18 inserted, which contains holes and separates the Ciasaustrillslläne from the supply line 12.

The heating zone is enclosed by a heat insulating wall 20, which has a bottom 21 and a Has roof 22 in which slot-like openings are provided so that the endless chains 7 and 8 and the carriers 10 can pass through.

The heating zone is further divided by intermediate floors 23 into individual regions, of which only one is shown in the drawing. These intermediate shelves also contain slots for the Passage of the endless chains 7 and 8 and the carrier 10.

Hot gas flows from the opposing pairs of (i.'iskiisten 2) onto the two surfaces of a pane of glass S. which is gcfötdcil through the gap 4. The gas flows not only heat the pane of glass, but also form gas cushions on both sides of the pane of glass so that it is kept balanced in an initially perpendicular position between the gas chambers 2. In this way, the glass pane S can move through the gap 4 in the heating without receiving any other mechanical contact than on the tri-zone.

The gas that forms the cushions escapes from the space between the glass pane and the associated one Gasaustriltsflüclic to the outside. Gas outlet lines 24 are just below each intermediate fio Floor 23 and provided below the roof 22, dm cli which sucked off the gas diverted from the gap 4 can be. The extracted gas can be heated again and again via the feed line 14 are fed in or flow out into the open after flowing through a heat exchanger.

Except the Hclici / iiiii '. In the exemplary embodiment, heating by means of electrical radiation heaters 25, which are provided in the space between adjacent gas boxes 2, follows the glass pane. Furthermore, by radiation from the gas outlet surfaces 3 of the glass cases 2, which are heated by the radiant heaters 25 and by the hot gases. The glass pane .V is heated by this combined heating effect to the lower relaxation temperature with which the glass pane S leaves the heat zone through the roof 22. The glass pane has a temperature at which the viscosity of the cilase is such that tensions are balanced out by a flow within the glass.

The heated pane of glass .S is then passed through the cooling zone between the Gaskäslen 5 moves, from which cool gas aussliöml. for example outside air, and against the Glass pane .V is directed. The rapid cooling of the cilase causes hardening in a known manner.

Each Ciaskasten 5 is designed in the same way as the Gaskäslen 2; The only difference is that cold air is supplied through a supply line, not shown. The cool gas passes through a dilator plate 2fi and exits through the perforated gas outlet surface f . In the cooling zone too, adjacent gas boxes 5 are connected by a line 27 in order to maintain a uniform pressure in the gas boxes.

The cold gas streams emerging in the cooling zone also form gas cushions which hold the glass pane S in its vertical position in the same way as is the case between the gas boxes 2 in the heating zone.

The movement of the glass pane S within the 1 leizzone is relatively small. If the heated glass pane were to be moved further into the cooling zone at the same speed, the upper parts of the glass pane S would already be cooled significantly while the lower areas are still in the heating zone. However, such conditions are undesirable because they can lead to rejects and result in at least one deformation and undesirable stresses in the laser.

The vertical conveyor for the glass panes .V is therefore designed so that a fast Movement of each sheet of glass 'S' takes place from the heating zone into the cooling zone.

The vertical conveyor is schcnialibch in fig. 3 and 4 dargcsU.lt, in which the gas boxes 2 and 5 are left for! For the sake of clarity. The two endless chains 7 and 8 run over upper chain wheels 28 and 30 and lower chain wheels 31 and 33. of which the lower chain wheels are driven by a motor 35. The sprockets are above and below the merchandise arranged.

The trowels 7 and 8 carry several equally spaced projections 7 ″ and 8 a. the du support of assigned Ί bearings 10 serve.

Each carrier 10 can slide vertically freely along the trowels 7 and 8 between adjacent lugs Ta and 8 α

lim an unsupported case of a carrier 10 should be avoided along chains 7 and 8 if the ziiL.eoidneten approaches 7 α and 8 «at the Urnlenkimj! start the way back outside the gap 4.

two parallel endless chains 36 and 37 are arranged parallel to the chains 7 and 8 next to the upper ends in the area of the sprockets. Each of the chains 36 and 37 carry lugs 38 and 40, respectively, catch any TrägcrlO when it runs out of the upper sprockets 28 and 30 so that these carriers α 10 in a controlled manner on the rear sides of the preceding projections 7 and 8 α is moved .

The chains 36 and 37 have a length which at least corresponds to the distance between adjacent attachments 7 "and 8", increased by a distance which corresponds to the vertical displacement of the Aniälze7 (7 and 8 ", while the chains 36 and 37 a carrier 10 If the chains 36 and 37 have two lugs 38 and 40 at the same distance from one another and if the chains 36 and 37 are driven at twice the speed of the chains 7 and 8, the lugs 38 and 40 would be in a position in which they at the upper end of the chains 7 and 8 receive a carrier 10 and α at least about twice the distance of the adjacent projections 7 and supporting 8 ". Suitably lind the chains 36 and 37, but arranged so that their speed is a multiple of the chains 7 and 8 is.

As a result of the arrangement made, a carrier 10, which is deflected via the chain wheels 28 and 30, is lowered in a controlled manner while resting against the leading edges of the An-Iätze7ry and 8 "when it runs off the chain wheels 28 and 30 iii until it comes to rest against the trailing surfaces of the preceding one Approaches 7 α and 8 α arrives and is then taken along with the chains 7 and 8 up to the deflection at the lower sprockets 31 and 33.

The sprockets 31 and 33 are provided with a recess in the same way as the sprockets 28 and 30 in order to receive the carrier 10 and to enable it to circulate along the circumference of the associated sprockets with the extensions Ta and 8a.

After a carrier 10 has passed around the lower chain wheels 31 and 33, the approaches 7 ″ and Hn come. which supported it during the downward movement, on its upper side, so that the chains 7 and 8 can slide freely through holes in the carrier 10, while the latter remains standing relative to the Celts 7 and 8.

Two endless parallel vertical chains 42 and 43 are adjacent to the lower ends of the de; upward running strands of the chains 7 and 8 arranged in the same way as the chains 36 and 37. What is different, however, is that the chains 42 and 43 are driven intermittently and run in the opposite direction as the chains 7 and 8 each of the chains 42 and 43 carries Associated lugs 44 and 45 which, when the chains 42 and 43 are stationary, support the carrier 10 when it runs off the sprockets 31 and 33. This continues until the carrier 10 is gripped by the next following approaches 7 a, 8 α and taken along.

With the conveyor device described, each carrier 10 executes a movement, during which it is held on the lugs 44 and 45 for a short time, then supported by the lugs 7 α and 8 a is moved upwards at a constant speed along a vertical cock, is then deflected downwards via the chain wheels 28 and 30 after passing through Hei / - and Külil / onc and si ine support is shifted from the approaches 7 α, 8 et to the approaches 38 and 40. Then the carrier 10 is accelerated downwards! until it finds its support on the trailing surfaces of the preceding approaches 7 α, 8 α , whereupon the carrier 10 is taken down by the chains 1 and 8 and is deflected around the lower sprockets 31 and 33 upwards. Here, the carrier 10 again loses contact with the projections 7 ″ and 8a of the chains 7 and 8 carrying it, but is gripped by the projections 44 and 45 of the chains 42 and 43 and initially accelerated until it is stopped by the chains 42 and 43 comes to a standstill. Then he is gripped by the following approaches 7 α and 8 a of the chains 7 and 8 and taken again. The standstill of the carrier 10 on the lugs 44 and 45 allows the carrier 10 to be loaded with a new pane of glass S before it is moved upward by the conveyor device. After passing through the treatment zones, the treated glass pane S is removed from the carrier 10 when the glass pane approaches the upper sprockets 28 and 30.

An additional conveyor device is provided in the area between the heating and cooling zones and consists of two endless chains 47 and 48, the side of the chains 7 and 8 and parallel to these are arranged. The chains 47 and 48

ju carrier. Lugs 50 and 51, which are arranged so that when the chains 47 and 48 are driven by motors, not shown, the approaches 50 and 51 after are moved above and lie in the region of the extreme ends of the carrier 10. Here is the speed of lugs 50 and 51 larger than that of chains 7 and 8.

If a gins slice S is heated to the lower Dchnungstcmpcratur as described, the upper edge of the glass sheet S lies just below the roof 22 of the heating zone. At this time, the drive of the chains 47 and 48 is switched on and the lugs 50 and 51 grip the outer ends of the carrier 10 from below and quickly lift it together with the glass pane S , the carrier 10 along the chains 7 and 8 upwards slides. The drive of the chains 47 and 48 is switched off when the entire glass pane S has arrived in the cooling zone. The carrier 10 is then supported at this point by the lugs 50 and 51 until the continued movement of the chains 7 and 8 bring the lugs 7 α, 8 (7 that were left behind) back to rest against the Unterfläc of the carrier 10, whereupon the carrier 10 and the glass sheet carried by it, the S Aufwärtsbeweß ^un ß through the cooling zone continues. the chains 47 and 48 are then moved back into the initial position so as to be provided for the transport of the next carrier.

In the lower and upper part of the conveyor

loading and unloading devices are provided which are not shown.

In the I · "i g. 5 to 7 shows a modified design of a device is shown that contains a Bicgczonc for the heated glass sheets S before

these are transferred to the cooling zone.

Fi g. 5 shows a schematic perspective illustration a row of gas boxes 102, which are arranged vertically one above the other and rlmrli

a heating zone A, a bending zone B and eii .-> - cooling zone C extend. The gas boxes have gas outlet surfaces 103 to which correspondingly shaped gas outlet surfaces are arranged in an opposing row of gas boxes 102, so that a gap which extends in the vertical direction and extends through the three zones A, B and C results.

The gas boxes 102 in the heating zone A have flat perforated gas outlet surfaces 103 α and serve to supply heated gas in the same way as in the embodiment according to FIGS. 1 and 2. A glass pane S moved vertically upwards through the heating zone A is therefore heated by the hot gases emerging from the gas outlet surfaces 103 a and by electrical radiant heaters 125 located between adjacent gas boxes 102. In the heating zone A , the glass pane S is heated to a temperature at which it can be bent. It then passes into the bending zone B , in which the gas boxes 102 have gas outlet surfaces 103 b which, with the gas outlet surfaces (not shown) of the associated gas boxes on the other side, form a gap that is curved around a vertical axis. The arrangement is made in such a way that the curvature increases upwards as. A horizontal section through two opposing gas boxes 102 in the bending zone B is shown in FIG. 6 shown. Streams of the hot gas emerge from the gas outlet surface 103 b perpendicular to the latter. The result is a neutral area, the iii F i g. υ is indicated by the SificnpUiikiicf ic line / V, in that the gas jets emerging from the gas outlet openings 103 b do not cause a resulting gas flow to one of the surfaces 103 b.

The gas boxes 102 in the bending zone B are arranged in such a way that the gas outlet surfaces 103 b have a progressive curvature in the direction of movement of the conveying device. As a result, the glass pane S is gradually bent as it passes through the bending zone B until it has assumed the desired curvature about a vertical axis. The gas boxes 102 are arranged interchangeably, so that the device for producing different curvatures can easily be changed over.

After leaving the bending zone B , the glass pane is transferred to the cooling zone C and cooled to a temperature at which it retains the assumed shape. This cooling can also cause the glass pane S to be held.

F i g. 6 shows schematically and not to scale a glass sheet S, which is b between two perforated gas-outlet surfaces 103, which are denoted by V and X. These two surfaces V and X have the same curvature. The drawn glass pane S has a larger radius of curvature, so that it intersects the neutral area N, which would arise if there was no glass pane S , at points Y and Z.

Since opposite pressure gradients prevail from the surfaces V and X to the neutral area W, relatively greater forces are exerted on those parts of the glass pane S which are closer to the respective gas outlet surface V or 'X , so that the glass pane is in the curvature of the neutral range N is forced. At the same time, however, are the total forces that are on you. Glass pane S exerted by the gas streams, balanced so that the glass pane S is held in its vertical position by a cushioning effect of the gas streams, as is the case with the device according to FIG. 1 and 2 is also the case.

F i g. 7 shows a modified conveyor device in order to move glass sheets S through the heating zone A, the bending zone B and the cooling zone C in succession. This conveyor device consists of three endless chains 131, 132, 133, which run over lower chain wheels 134 or 135 or 136, which are carried by a common shaft 137 and driven by a motor 138. Above the cooling zone C, the chains 131, 132, 133 run over assigned chain wheels 139, 141 and 143, which are not driven.

The chains 131, 132 and 133 are of equal length and carry lugs 145, 146 and 147 which are provided at the same distance from one another on the chains, each set of lugs 145, 146, 147 being aligned horizontally and intended to support a pane of glass S. The glass pane is thus supported at three points on its lower edge in the horizontal direction.

Approaches 145, 146 and 147 are not with an asbestos mat or one containing a net provided element for support.

F i g. 8 shows a perspective illustration of a gas box 102 for heating zone A, while FIG. ⁽ > represents a gas box 102 for the bending zone B or KiiblzoneC. Each gas box 102 consists of sheet metal, its gas outlet surface 103 being formed on a perforated block 150. The gas outlet surface 103 is, as already mentioned, flat in the heating zone A (Fig. 8) , while in the other two zones it is curved (Fig. 9). Each block 150 is made of refractory material and contains three vertical T-shaped guide slots 151 which serve to receive the chains 131, 132 and 133 of the conveyor The chain runs in the T-shaped widened part, while the associated lugs 145, 146 and 147 extend through the narrower part of each slot 151 over the gas outlet surface 103. The gas is supplied via lines 152.

The dimensions and position of each contactor 151 are selected so that the lugs 145, 146 and 147 lie between the opposing gas boxes 102 as they move upward through zones A, B and C into the neutral area N (FIG. 6) independent of the curvature of the gas discharge surfaces 103 in the bending and cooling zone. The distance between the chains 131, 132 and 133 is therefore, as shown in FIG. 7 shows progressively different in the vertical direction, so that the position of the projections 145, 146 and 147 in relation to the lower edge of the supported glass pane 5 remains constant.

As in the embodiments according to FIGS. 1 and 2, each pane of glass S is balanced by the opposing gas flows during its vertical passage through zones A, B and C, so that the only parts of the glass pane 5 which are mechanically in contact are those parts lying against the shoulders 145, 146 and 147 their lower edge are.

If the glass panes S are to be annealed, then slow cooling takes place in the cooling zone, while for hardening the glass panes there is rapid cooling and a snow transition

of the glass panes from the bending zone Ii into the cooling zone C is necessary in order to prevent a strong temperature vessel between the leading and trailing edge of the glass pane when it is transferred into the cooling zone. A reciprocating fork, not shown, which can be driven by endless chains, is used for the rapid overhead line of the individual glass panes .V from the bending zone Ii into the cooling zone C in a modified manner, chains 47 and 48 as in FIGS. 3 and 4 can be used for this purpose.

In some cases it is undesirable for the glass pane .S 'to be held stationary between the gas boxes 102 in the cooling / one Γ, since the jets of the cooling gas which then strike the same points on the glass pane can cause uneven hardening. I.is devices are therefore useful that move the supported glass sheet .V back and forth in the vertical direction with short strokes so that the glass sheet S is not stationary during the cooling process. Such a back and forth movement can be effected by chains which, similar to the chains 47 and 48 of the Λΐϋ-fiilirungsform shown in FIG. 3 and 4 are formed. In a modified manner, such chains can be used to accelerate the movement of the panes of glass when they are transferred from the bending zone Ii to the cooling zone C and then to bring about a slow movement through the cooling zone by reducing the speed of the chains.

Glass panes S to be treated can be placed in a vertical position, for example on rollers, in the lower part of the conveyor system according to FIG. 7 are fed. The vertical position of the glass panes is also ensured there by gas streams which emerge from further gas boxes (not shown) and act on both sides of the glass pane moved along a horizontal path.

The glass panes S do not have to be fed to the vertical conveyor at outside temperature, but can be preheated, for which purpose they are supported along the horizontal conveyor by hot gas flowing out of the gas boxes provided there. This preheating can also be supported by electric radiant heaters, so that the glass panes S already have an elevated temperature at the start of the vertical conveyance, which can be in the range of the lower relaxation temperature.

The gas boxes 2 and 102 described so far have essentially uniformly perforated gas outlet surfaces 3 and 103, which are separated from one another by the vertical slots 151. In the F i g. Modified designs that are suitable for use in heating zone A are shown in FIGS. The same reference numerals are used for the same parts as in FIGS. 8 unil ¹ J used.

In the embodiment according to FIGS. K) and 12 is a gas box 102 with a gas outlet area 103 forming block 150 with gas via a Line 100 (Fig. 12) supplied to the rear Area of the gas box 10! connected. The gas tread 103 of the block 150 has recesses to accommodate electrical radiant heaters 125.

In the case of the design I F i · '.. IO the Hci / vsiikimg of the radiant heater 125 is greater than would be possible through the heating effect of the hot gas jets alone, because the radiant heater 125 does not substantially interrupt the gas supply from the gas boxes 102. This improves the effect of balancing the glass pane.

Each gas box 102 is connected to a frame structure Γ via ι / wci strips 192, 193, which are connected to the frame 1 · ' by screws 195. Each lead 190 contains one

ίο Flange connection 196, to with a feed line 197 to be able to be connected, so that each gas box 102 can be expanded individually.

11 shows a further modified design with a gas box 102 to which hot gas is fed via a line 152. The one with the panes of glass The facing part of the gas box consists of a block 198 in which vertical guide slots 151 for the chains 131, 132 and 133 as well as the lugs 145, 146 and 147 are formed. The gas outlet

The step surface of the block 198 has recesses so that the gas outlet surfaces closest to the glass pane 103 ', 103 ", 103'" lie in one plane and are separated from one another by recesses are, in which electric radiant heaters 199 are stored. There are guide plates in the recesses formed, which are a vertical extension of the individual guide slots 151, so that the Chains and their approaches are led over the entire height of the gas box.

The gas outlet surfaces 103 ', 103 "and 103 *"'"contain holes through which the gas supplied to the interior of the gas box exits with sufficient pressure against the glass pane S. The relatively large area of the radiant heater 199 and the relatively large area of the heat radiation Exposed parts of the glass pane create a strong heating of the glass pane S in the heating zone A.

In all of the described gas boxes with T-shaped guide slots for guiding the extensions 145, 146 and 147 supported by the conveyor chains 131, 132, 133, the distance from FIG. 1 is perpendicular Direction of adjacent gas boxes 102 is always less than the depth of a shoulder 145, 146, 147, so that these are always guided by the aligned slots 151 in order to during the entire movement always receive impeccable guidance.

In all embodiments with the exception of that according to FIG. 11, the gas from the gas boxes enters the space between the adjacent surface of the gas box and the glass pane, so that the gas in the essentially only by a parallel flow to the glass pane upwards, downwards or to the Pages can escape.

13 and 14 are modified designs represented by gas outlet surfaces in which the gas is fed to a gas box 201, dei between a front wall 202 and a rear wall 203 is located. Here the gas from the Kammci exit via holes 204 into a block 205 which forms the front surface of the gas box 201.

Over the area of the block 205 several outlet ducts 206 are distributed anoidnet, the ir Open channels 207, which are led to the rear through the gas k.i.sten 201 and on the rear wall 20, des Ciask.isteu ·. open, so there. " the gas in cinei Space / wipe the gas locker Ϊ01 and an OtVn wall arrives. In this way, a gas cushion of substantially uniform pressure is created between each

the block 20 and the glass sheet 5, which holds the glass sheet in a vertical position.

In all the glass boxes described so far, the gas outlet openings in the gas outlet surface of the gas boxes are arranged in rows, which are preferably inclined to the horizontal (Fig. 14) or are staggered in the direction of movement of each glass pane 5 so that no part of the glass pane S is permanently off is hit by a gas jet. In FIG. 14, the gas outlet openings 204 are therefore arranged in a staggered manner in relation to the direction of movement G of the glass pane. The outlet cones 206 are arranged in the same way, the outlet opening 204 of associated channels 206 being at an equal distance from one another. The use of the channels 206 for discharging the gas allows the gap between the glass pane S and the block 205 to be reduced without having to accept a substantial throttling of the gas flow from this space. Therefore, the gap between opposing gas boxes 102 can also be reduced, as a result of which better support of the glass pane balanced in a vertical position is achieved. The reduction in the gap also has the advantage that more precise bending of the glass pane 5 in the bending zone B can be achieved.

The heating of the glass panes, which must be carried out before the bending of the glass panes, does not necessarily have to be carried out in a vertical direction Heating zone. Preheated panes of glass could also be vertical Conveyor are fed to the panes of glass demands through a vertical bending zone.

It should also be noted that the bending according to the proposals of the invention to eme perpendicular Axis takes place while the glass pane.be in vertical position is promoted, so that influences derSwerkraff during or after bending

^ge fn din 'tust EADERSHIP examples the heating and cooling zone are sequentially disposed upward However, it may be advantageous to carry out eme promotion of the glass sheets from top to bottom in some cases, so that a thermal influence against the F-izzone is avoided to the cooling zone.

The invention is in the exemplary embodiment for the heating and hardening of flat glass, feraei for heating and bending and hardening glass panes has been described. In the same way, however, also know a wide variety of other treatments can be made from panes of glass; for example, a pane of glass between gas cushions balanced in a vertical direction is supported on its lower edge resting ar their surfaces are provided with a coating, the coating over the entire surface as a result the selected support can be reached.

For this purpose 3 sheets of drawings

Claims (13)

Patent claims: 1. A method for treating panes of glass in a vertical position, these resting with their lower edge on a movable carrier and when moving through their Hot gas streams directed onto the surface Glass pane forces are exerted which counteract a deviation from the vertical position, characterized in that the gas streams are directed against the glass surfaces and the carrier in the vertical is moved, so that by the joint movement of the support and the glass pane the longitudinal The gas streams flowing through the glass surface arise. 2. The method according to claim 1, wherein a flat sheet of glass in a predetermined Gestak is bent by being held in a vertical direction and moving into a bending association, thereby characterized in that the glass plate supported on the carrier is at its vertical position Movement through inr facing surfaces of hollow walls arranged vertically next to it. provided openings is held by hot gas streams, the 'the cavities of the cavity walls supplied gas originate, and the openings v-ithakender. facing surfaces in the ßiegestation are so rusge'pi'Jet that a gradual Bending de- glass sheet into the desired shape is done. 3. The method according to claim 1 or 2, characterized in that subsequent to the heat treatment with the hot L.äsen durci. Directing cold gas streams against the glass pane, which continues to move vertically, which is hardened by rapid cooling 4. The method according to Part 2, characterized in that that the pane of glass on a horizontal conveyor of the Aufgabestelie vertical conveyor is conveyed and preheated in the process. 5. Device for treating in front of glass panes in a vertical position with walls and with a ·; Funding institution, dv.ch die. the glass pane is supported at its lower edge on supports and is movable through the gap and, through a supply of pressurized gas, the gas flows which act on the two fii) hen of the glass pane and hold them in the vertical position, characterized in that the conveying device (7, 8, 9 ) Conveys the glass pane (S) vertically through the gap (4) and supplies the adjacent walls from the gas supply (12), having gas outlet points (31) directed towards the glass surface. C ¹ . Apparatus according to claim 5, characterized in that the opposing Winnie contain at least one pair of gas boxes (2, 102) , the opposing gas outlet surfaces (3, 3) of which widen several gas outlet openings. 7 The device according to claim 6, characterized in a, c ■ in / e.ichnet. d ;. ¹ '· the gas! .; -, U: n (Z, S. ! 02) by a dnici: ausL'.li-iclr ieiliiü "ί) fv '.'. 'J) niil'-inaii der \ vri> :. i !! '!'-; i sin ·· '. 8. Apparatus according to claim 6 or 7, characterized in that within each gas box (2) a perforated plate (18) for D: jerk uniformization is arranged by the the supplied gas occurs before it reaches the gas outlet openings. 9. Device according to one of claims 6 to 8, characterized in that at least a f ^ ar of gas boxes (2), which have a heating Zone (A) form, a supply line (14) for hot ■ '- ßes gas is assigned. 10. The device according to claim 9, characterized in that at least one pair of gas boxes (5) connect one to the heating zone (Λ) Form de cooling zone (B) through which the glass pane is moved vertically by the conveyor. 11. The device according to claim 10, characterized in that the cooling zone (C) immediately b "is arranged above the heating zone (/ 1) and siL .. the vertical gap (4) through both zones .stretched. 12. Apparatus according to claim 10 or 11. "gekennzeiennet characterized in that the conveyor device C, 8. 10) in the area of the transition from the heating zone (A) to the cooling zone (C) an additional one. d ^; c- heated glass pane mn increased speed moving auxiliary conveyor device i4 ", 43; is assigned. 3Q 13. Device according to one of claims 5 to 12, characterized in that the conveyor device has at least srwei endless chains (7, 8) which extend parallel to the gap (4Ί in a vertical direction, and on them in absu <nd lying carriers (10) for glass panes (S) arranged Swid. ■; ^; Vorricrnuig according to one of claims 5 to 13, characterized in that a bending zone (B) is formed between at least one pair of gas boxes (102) in the region of the gap (4). and the gas: junction surfaces (103) , which are opposite one another and which are supplied with hot gas, are curved in order to form a gap which is curved about a vertical axis, the curvature of which 4 ·; should increase progressively in the direction of movement of the conveyor device (131, IM. 133) .