DE511496C - Rotating scissors for cutting rolling stock - Google Patents

Description

GERMAN EMPIRE

ISSUED ON OCTOBER 30, 1930

REICH PATENT OFFICE

PATENT LETTERING

JYe 511496 CLASS 49c GROUP

Demag Akt-Ges. in Duisburg *) Rotating scissors for cutting rolling stock Patented in the German Empire on September 12, 1926

The invention relates to rotating scissors for cutting from the roller coming rolling stock of any cross-section, in which the knives in the rotating Knife carriers are set up laterally displaceable. The lateral mobility of knives, which can easily be carried out by mechanical or electrical devices leaves, results in a significant simplification of the scissors by eliminating control, cam or cam disks. A Another notable advantage of the invention lies in its relation to the known ones Types of rotating scissors very low mass movement when sliding the Knife.

The lateral displacement of the knife according to the invention enables uninterrupted Promotion of the to be cut

ao rolled material in a straight direction. While at various known bodies the rolling stock on rotating shears in order to get it into the cutting plane beforehand through guide tubes with a sharp joint

as must be deflected sideways and here If there is always a bending of the rod ends, this disadvantage falls through the continuously rectilinear guidance of the rolling stock now continues.

The drawing shows an embodiment of the scissors in Fig. Ι in longitudinal section the knife carrier and partly shown in a schematic view.

Fig. 2 shows the laterally displaceable knives, designed for simultaneous cutting of three adjacent bars.

The knife holders with the knives c are arranged in the knife carriers b rotating in opposite directions through the drive shafts α, laterally displaceable in slots. The lateral displacement of the knives c can be done by connecting levers d , which have their fixed pivot point at e on the bearings / connected to the knife carriers. The introduction and triggering of the horizontal knife displacement is done by mechanical or electrical action on the connecting handle d, for example, as shown in Fig. Ι, by fixed electromagnets g arranged in the central axes of the knife carriers. In this embodiment, the open lever ends h slide around coupling pins i of the axes k influenced by the magnets g.

The solid lines in Fig. I show the scissors in the cutting position (knife position to the left) with a rectangular rod to be cut /. Immediately after the end of the cut, the rotating knives, c slide back into the dot-dash position in Fig. 1 due to the action of the electromagnets g on the levers d. Like here-

*) The patent seeker stated as the inventor:

Paul Zarnikow in Cologne-Deut \.

WÄwiIi

from recognizable, the rolling stock to be cut is neither in the cut nor in the Idle position of the knife deflected from its straight line direction. Rather, it works after stepping out of the roll stand continuously in the desired direction through the scissors and after the cut in the same direction over the Roller table further down.

As indicated in Fig. 2, two or more adjacent rods / 'coming from the roller can be cut through at the same time by the same device of the laterally displaceable rotating knife c'. In Fig. 2, too, the solid lines show the cutting position, while the dash-dotted lines show the idle position of the knife c ' .

The lateral control of the knife body could in place of the mentioned electrical It can also be actuated by another mechanical circuit (gearwheels or the like). In each knife carrier, instead of the individual knife shown in Fig. Ι, several knives distributed around the circumference can be be brought.

Claims (1)

Claim: Rotating scissors for cutting rolling stock of any cross-section with laterally displaceable knives located in the rotating knife carriers, characterized in that the knives (c) can be moved laterally by means of lever rods, toothed segments or the like connected to the knives, which are electromagnetically controlled or by similarly acting, mechanical drive means are influenced. 1 sheet of drawings