SU113434A1 - Device for cross rolling metals - Google Patents

Description

Transverse rolling methods are known in which the workpiece is rolled in the transverse direction between two plates. Forging rollers for producing various rolled sections are also known.

In the described device, these two methods are combined and a new mill has been created, which can be used in small-scale production of shaped parts.

In the proposed device for the transverse rolling of metals, in order to obtain a round profile of rolling metals, the rolls are made moving towards each other in the direction of their axes, and the distance between the rolls in the vertical plane can vary depending on the diameter of the rolled billet.

The difference from the sushi that is used in its rolling method is that the billet is compressed by rolls in a short section equal to the length of contact between the metal and the roller. The metal can be fed into the rolls automatically when the rolls are rotated around an axis. The possibility of compression of the billet during cross rolling on a relatively short section distinguishes favorably the method according to the invention from the known method of rolling billets between two plates, as this reduces the tendency to loosen the metal.

FIG. 1 shows a general view of the device; in fig. 2 - side view; in fig. 3 - top view.

The rolls 1 can be rotated in bearings 2 mounted on rocker arms 5, which can rotate around axles 4. On these axles, worm shafs 5 are mounted, driven by an electric motor through clutch 6. Worm gear coupled to a worm 7, mounted on axis 8. At the other end of axis 8, a worm is attached to 9, mated with a worm gear 10, seated on the sliding tong 11 on the axis 12 of the roll 1.

With the help of a screw pair of 9 n LO, the roll / is rotated. Forward movement along its axis, the roll / receives from the gear 13, which is mated to the rack rail J4, which is a continuation of the roll axis.

The operation of the mill is as follows.

The workpiece 15 is set into rolls preheated in the inductor 16. To obtain a round profile, the rolls move progressively along their axes towards each other. To obtain a rectangular profile, the workpiece is fed into rotary rollers. Forging rolls can also be used to produce a round profile. Disc shears 17 are used for the sections of the finished profile.

The gap between the rollers can be changed using a screw gear 18 and a knob 19. The entire device is mounted in the frame 20.

The described rolling method, according to the invention, can be used in the production of stepped round billets, a relatively large D. LINE, having right angles at the points of transition of one diameter to another.

Subject invention

A device for cross rolling metals with smooth and forging rolls, characterized by the fact that, in order to obtain a round profile, the rolls are made moving towards each other in the direction of their axes, and the distance between the rolls in the vertical plane may vary depending on the diameter of the billet .

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FIG. one

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