Rolling unit for rolling rod-shaped or tubular bodies

Details Rolling unit for rolling rod-shaped or tubular bodies Rolling unit for rolling rod-shaped or tubular bodies

1995-11-22

1998-06-16

Larson, Lowell A.

Metal deforming

By use of roller or roller-like tool-element

Included in roller-cluster

72237, 72234, B21B 1310, B21B 1308, B21B 3100

Patent

active

057654239

ABSTRACT:
The inventive relates to a rolling unit (5) for rolling rod-shaped or tubular bodies, such as pipes, hollow sections bars, wires etc. The unit (5) is provided with three or more working rolls (20) which have respective rotation axes (A1, A2, A3) lying in a perpendicular plane to a rolling axis (L) along which the unit (5) is disposed. Advantageously, the rolls (20) are mounted on corresponding swinging arms arranged to oscillate in respective planes, perpendicular to the rotation axes (A1, A2, A3) of the corresponding rolls (20) and containing the rolling axis (L). Such a rolling unit can prevent any uncontrolled thermal expansions induced in the swinging arm by the high temperatures sometimes involved in the process, by keeping the rolls in a symmetrical position with respect to the plane of oscillation of the respective arm.

REFERENCES:
patent: 1899659 (1933-02-01), Asbeck
patent: 4198841 (1980-04-01), Vydrin et al.
patent: 5331835 (1994-07-01), Palma et al.

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