DE153137C

DE153137C -

Info

Publication number: DE153137C
Application number: DENDAT153137D
Authority: DE

Description

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KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

KLASSE 7a. CLASS 7a.

Die den Gegenstand der vorliegenden Erfindung bildende Vorrichtung zeichnet sich dadurch aus, «laß sie ermöglicht, in einem gewöhnlichen Doppchvalzwcrk mit nur einem einzigen Walzenpaar schwere Metallstangcn, Schienen und dcrgl. auszuwalzen, ohne daß eine besondere Handhabung des Mctallstranges oder ein Stillsetzen und Umsteuern tier Walzen erforderlich wäre. Es wird diesWhich is the subject of the present invention A forming device is characterized by the fact that “let it be made possible in one ordinary double valence with only one single pair of rollers heavy metal rods, rails and the like. to roll out without special handling of the metal strand or stopping and reversing of the rolling would be necessary. It becomes this

ίο dadurch erreicht, daß hinter den Walzcnkalihcm bogenförmige Führungen angeordnet sind, die dem Walzgut eine solche Krümmung erteilen, daß es um das Walzenlager herumläuft und vor das nächstfolgende Kaliberίο achieved by the fact that behind the Walzcnkalihcm arcuate guides are arranged which give the rolling stock such a curvature that it runs around the roller bearing and before the next caliber

t5 geführt wird, welcher Vorgang sich so oft wiederholt, bis das Walzgut auf das gewünschte Maß ausgestreckt ist, worauf die fertig gewalzte Stange oder Schiene in eine gerade Rinne gelangt. Auf diese Weise wirdt5 is performed, which process occurs so often repeatedly until the rolling stock is stretched to the desired extent, whereupon the finished rolled bar or rail into a straight gutter. That way will

so mittels eines einzigen Walzenpaarcs dieselbe Verjüngung erzielt, wie man sie bis jetzt nur dadurch erlangen konnte, daß man. entweder' die Walzen umsteuerte oder Triowalzen an-'so by means of a single pair of rollers the same Rejuvenation achieves the only way to get it up to now by. either' the rollers reversed or trio rollers on- '

■ Wendete oder auch den Metallstrang durch zwei Walzensätze hindurchführte; zugleich ist Vorkehrung getroffen, daß bei zu schnellem Vorschub des Metalles der ausgewalzte Metallstrang in Schleifen geleitet und so ein Stauen oder Werfen des Walzgutes in den Führungen verhütet wird.■ Turned or passed the metal strand through two sets of rollers; is at the same time Provision has been made that, if the metal is advanced too quickly, the rolled metal strand guided in loops and so a damming or throwing of the rolling stock in the guides is prevented.

In der beiliegenden Zeichnung ist Fig. ι eine Oberansicht der Vorrichtung, : Fig. 2 ein Schnitt nach der Linie A-A, In the accompanying drawing, Fig. Ι is a top view of the device: Fig. 2 is a section along the line AA,

Fig. 3 ein Schnitt nach der Linie U-B und Fig. 4 ein Schnitt nach der Linie C-C. Gemäß der vorliegenden Erfindung wird der auszustreckende erhitzte Mctallbarrcn zunächst dem ersten Walzenkaliber I zugeführt und gelangt aus diesem in eine die Walzenlager 3 spiralförmig umgebende Führung oder Rinne 2, die das^JVletall nach der Vorderseite der Walzen zurück in das zweite Walzenkaliber 4 leitet, aus dem es durch eine Führung 5 hindurchtritt, die es wiederum vor die Walzen bringt und an das dritte Kaliber 6 abgibt und so fort, je nachdem, wie oft das Metall zwischen den Walzen hindurchlaufen soll (Fig. 1).3 shows a section along line UB and FIG. 4 shows a section along line CC. According to the present invention, the heated metal bar to be stretched out is first fed to the first roller caliber I and from there it passes into a guide or channel 2 that spirally surrounds the roller bearings 3 and guides the metal back into the second roller caliber 4 after the front of the rollers it passes through a guide 5, which in turn brings it in front of the rollers and delivers it to the third caliber 6 and so on, depending on how often the metal is to pass between the rollers (FIG. 1).

Der letzte Kalibersatz, bei dem dargestellten Ausführungsbeispiel 6, gibt das Werkstück an eine gerade Rinne 7 ab, die es zu der Stelle leitet, wo es in der üblichen Weise zerschnitten oder sonstwie weiter bearbeitet ■werden kann (Fig. 7)·The last caliber set, in the one shown Embodiment 6, gives the workpiece to a straight channel 7, which it to the Place directs where it is cut up in the usual way or otherwise processed further ■ can be (Fig. 7) ·

Durch die vorstehend beschriebene Einrichtung wird eine selbsttätige fortlaufende Streckung der Stange oder des Barrens erzielt; das Metall kann zu derselben Zeit durch zwei, drei oder auch mehr Nuten desselben Walzcnsatzcs gehen und wird dabei immer gezwungen, während des Auswalzens in derselben Richtung zu laufen.The device described above is an automatic continuous Elongation of the rod or ingot achieved; the metal can pass through at the same time two, three or even more grooves of the same roller attachment go and always will forced to run in the same direction during rolling.

Der Unterschied im Querschnitt der Kaliber 1, 4 und 6 muß so bemessen sein, daß niemals ein zu geringer Vorschub .des Metalls zwischen zwei Kalibersätzen stall-The difference in the cross-section of calibers 1, 4 and 6 must be such that that there is never too little advance of the metal between two sets of calibres.

Claims

finds that if this were the case, the metal would be stretched impermissibly, while in the case of an oversized feed the metal about 9 out of the guides can be lifted onto the inclined surface 8 (Figs. 2 and 3).

Tours 2, 5 and 7 are -in

their parts lying next to the rollers covered by a plate 10 in order to prevent that the rod when leaving the rollers or when entering between bends or throws them, while they remain open to do so, that in the case of an oversized feed, the rolled-out rail that in Fig. 1 by the dashed lines 11 occupy the indicated position on the floor 8, which, as shown,

* posed, can get a certain inclination, in order to facilitate the movement of the metal loops 11 by gravity.

The covered guides 2 and 5 give the metal 'rail a certain curve right from the start, which is approximately as large as the curvature of the path. 25 which the rail has to traverse, which protects the "., ^{Other parts of the guide troughs from excessive pressure 1} which could otherwise prevent the rail from moving further and cause it to be thrown or treeed: the outer parts of the guides can therefore under Circumstances can be developed quite flat, sometimes even completely omitted.

Intended to

work, to be applied, so it is only necessary the number and size of the calibers

the invention in a Barrcnwalz-Fatent-Ans'pkuch :

to multiply in the rollers and those used to rejuvenate the ingot outside the first tour.

Although Ks is already known, narrow and thin metal strips, for example band iron, rolling out in a double roller, and attempts have also been made to produce a continuous one To achieve the passage of such strips by placing the front end under the lower roll to the next caliber or over the upper roll leads; this procedure, however, cannot be of considerable importance for rails or rods Size are used because they are very heavy due to their weight and flexibility to be handled and their size does not allow them to be put into such short or sharp loops to bend, as is customary in such a process.

A guide device for double rolling mills for rolling out heavy rods of considerable length, such as railroad tracks and the like. shows that arcuate guides (2, 5) are arranged behind the roller gauges, which bend the rolling stock and follow it in a horizontal plane '· around the roller bearing to the next; guide the caliber of the same pair of rollers and so on until the rolling stock is stretched out to the desired cross-section, whereupon the final delivery of the rolling piece takes place through a last straight guide (7). ■■■ **. ■;

1 sheet of drawings.

SERLlH. GEDRUCKT lN DER REiCHS&RL'CKEREI.SERLlH. PRINTED BY REICHS & RL'CKEREI.

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