DE1063347B - Process for rolling out profile strips made of glass - Google Patents

Description

I ⁰ / Ld I A ι <Z3 it Γ K 1 3 £ _ Po j 06111I _ - Po - rs 42e ± <f3f - JY - S60 SfZ. , - -

GERMAN m * m < PATENT OFFICE

kl 32 a

INTERNAT KI C 03 b

EXPLAINING PUBLICATION 1063 347

TO ME LETAG

S55031IVc / 32a

7 SEPTEMBER 1957

NOTICE
THE APPLICATION AND ISSUE OF THE 4 EXPLAINING LETTER 13 AUGUST 1959

The invention relates to em method for Rolling of profile strips from one continuously manufactured and still plastic glass ribbon, the ribbon being rolled along the working direction in the desired profile is bent

This is still the case with the previously known methods Plastic glass ribbon bent at right angles by appropriately offset rollers, although the resulting two flanges have a noticeable rounding at their cutting line The material thickness of the profile strip is the thinnest at this point and the inner edge of the angle is not always formed evenly

The invention is intended to be a particularly good and uniformly formed profile strip are created. For this purpose, the invention proposes one flat side of the tape initially tapered to a point To form the rib and then with the help of further profile rollers to finish forming the profile strip The formation or deformation of this rib and the subsequent angular shaping result particularly well-trained profile strips, which with the previous methods were not achievable

In the production of light profiles from flat iron it is already known to have rib-like "reinforcements" on the profile iron corners in the course of the rolling process However, iron and glass can be seen here in terms of their processability and behavior do not compare with each other during processing, so that this proposal does not defeat the invention was suggested

A device is preferably used to carry out the method, which in itself be known way with a melting container with a single egg adjustable outlet opening and a pair of rollers with a lower, smooth and flat forming roller is equipped, which is directly below the vertically flowing out According to the invention, the associated upper forming roller is provided with a fused glass position of the tapered rib provided a suitable groove, and the one behind the other arranged after Form roller pairs are arranged and shaped so that they are in the plane of section of the roller axis of a Couple have a gap that corresponds to the profile of the ge desired profile strip

A preferred embodiment of the subject matter of the invention is shown in the drawing shows in

Fig. 1 is a schematic side view of a device for rolling out fused glass to an angle profile,

2, 3 and 4 enlarged sections along the lines H-II, III-III and IV-IV of FIG. 4 for the representation of the various rollers and 10

Process for rolling out profile strips made of glass

Applicant:

Societe Anonyme des Manufactures

des Glaces et Produits Chimiques

de Velvet Gobam, Chauny & Cirey,

Paris

representative

Dipl -Ing R H Bahr and Dipl -Phys E Betzier, Patent attorneys, Herne (Westf), Freiligrathstr 19

Claimed priority V St ν America from September 10, 1956

Joseph H Lewis, Kmsport, Tenn (V St A), has been named as the inventor

25th

5 shows an enlarged section through a according to of the invention made angle profile

According to Fig. 1 is a melting container, for example the forehearth 1 of a glass melting furnace, at his

Bottom provided with an outlet opening 2, the outflow cross-section through em in the upper part of the forehearth slidably mounted needle valve 3 is controlled The needle 3 can be in a known manner adjust vertically and control the Ausnttsgeschwm-

the flow of glass from the opening 2

Under the forehearth there is a vertical one and longitudinally adjustable frame 4, the different Pairs of roller supports near the top of the frame under the forehearth opening 2

sits a pair of rollers 6, 7, the axes of which lie in an opposite to the vertical forward at an angle -of preferably between 30 and 45 ° ge inclined plane. To readjust this angle, the opposite side walls of the

Frame with arcuate slots 8 for receiving at least one roller axis due to the inclined arrangement of these two forms rolls 6, 7 can be the glass flow from the forehearth opening 2 just behind the point of engagement

pour on the rollers whereupon it runs upwards and downwards through this roller pair

When producing an angle profile strip is the Form roller 6 is provided with a flat, tapering, central groove 10 (see Fig. 2).

Claims (2)

walls of said groove have the same angle to each other as the side flanges of the Wmkelprofilleiste The depth of this groove is just so large that forms on the angle profile strip a full sharp edge or a vertex of the in the pair of rollers 6, 7 in solid molten glass stream into a continuous strip S with a pointed central rib pulled out on its upper flat side (Fig. 2) When the glass is pulled into the strip, its edges are rounded so that angular and sharp edges are avoided.The width of the strip depends on the outflow speed of the glass emerging from the curtain and the speed of rotation of the forming rollers After passing through the forming rollers, the strip S provided with the central rib 11 is supported by a small roller 12 on its way to the first pair of profiled rollers 13 and 14 10 corresponds, but is a little deeper. The lower profile roller 14 is not cylindrical, but tapers outward in the axial direction so that two cones that are flat at their base are connected to one another This double cone roller 14 cooperates with the upper grooved roller 13, so that on both sides of the Rib areas of the strip 5 "down are bent towards each other (Fig 3), whereby the angular formation is initiated The partially profiled strip then migrates to a second profile roller pair 17, 19, on the seme Wmkelform \ en is completed for this purpose the upper roller 17 has a deep groove 18 which the The lower double is able to absorb the entire width of the strip as it passes through the rollers konusw al / e 19 is aligned with the upper roller 17 and engages with the groove 18 em According to Fig. 4, the two rollers have in the middle of the roller passage a distance corresponding to the thickness of the incoming strip and are engaged along the parallel lines with The steel leaving these rollers has the desired one Angled profile, for example, a right-angled Piofil The rib 11 becomes the vertex of the angle and fills the corner of the angle sharply The rib would not be present, then the parting would be or the edge of the angle rail is round and thinner than the side flanges, like the dashed part 20 in Fig 5 indicates the rib takes the part above the streaked line em Under certain circumstances it may be desirable to keep the glass strip long to bend more smoothly by having more profile rollers with smaller deviations from roller to roller Depth of their grooves used Although solid rollers are shown in the drawing, one can of course also use the usual Wise use water-cooled rollers After leaving the last profile roller, the Profile strip is still too hot to maintain its shape without support during the further cooling one or more Double cone rollers 21 are provided, which essentially the roller 19 correspond and grip with its cone ms inside the angle profile strip As soon as the strip cooled so far that it can support itself, it runs over a usual table made of small cylindrical Rolling, where the bar is started or, after leaving it, is guided to a teaching At a suitable one Place the bar in the desired * Long cut The speed of each Walzenpaaies is un dependent controlled from each other, however, one can increase the speeds of the rollers together or \ erhindern to obtain such a glass strip of uniform width Optionally, the vertical displacement of the inlet valve 3 are also controlled to maintain uniform Stieifenbreite the Steueiung the rolling speed and / or the movement of the inlet valve takes place in a manner known per se by parallel, laterally movable measuring members 25 which, under Fedei pressure, rest against the opposite edges of the glass strip after it emerges from the forming rollers 6 and 7. If these members move outwards or inwards, that is, separate or approach one another when the strips become wider or narrower than a certain amount, then a not shown, known device is actuated that controls the height of the inlet valve and / or the roller speed, so that little he or more glass per unit of time enters between the forming rollers and thus the desired strip width is maintained The invention is not automatically based on this Rolling out of glass is limited. It can also be used with other substances, for example, with the same advantages with certain thermoplastics, ver used, which are in the temperature range between liquid and solid state similar to Behave glass PATENT APPLICATIONS 1 Procedure for rolling out profile strips from a continuously produced and still plastic ribbon of glass, the ribbon along the Working direction bent into the desired profile by rolling is characterized in that First a pointed rib is formed on a flat side of the tape and then with the help \ on further profile rollers the profile strip is finished 2 V011 with a melting container with a leguher outlet opening and a pair of rollers with a bumpy, smooth and flat forming roller, which lies directly under the molten glass flowing out vertically, characterized in that the associated upper forming roller (6) one for Her position of a pointed rib has a suitable groove (10) and post-forming roller pairs (13, 14, 17, 19), which are arranged one behind the other, lie to one another and are themselves shaped in such a way that that they have a gap in the sectional plane of the roller axes of a pair, which corresponds to the profile of the the desired profile strip Considered publications German patents Nos. 470 664, 608 828, 894 755 1 sheet of drawings > 909 607/95 8