Motion control for the feed mechanism in pilger rolling mills

Details Motion control for the feed mechanism in pilger rolling mills Motion control for the feed mechanism in pilger rolling mills

1975-01-08

1976-04-06

Larson, Lowell A.

Metal deforming

With use of control means energized in response to activator...

Sensing tool or tool-linked part

72189, 72252, B21B 2104

Patent

active

039480704

ABSTRACT:
The feed mechanism for a pilger or Mannesmann rolling mill is driven by an electrical linear motor which is controlled on the basis of two pulse trains. One train is derived from the rolls, the other one from the reciprocating motor. The control is carried out to distinguish between a constant speed phase during a rolling pass, an acceleration phase for advancing the feed mechanism and a deceleration phase to obtain reversal ahead of re-engagement of the bloom by the rolls for the next rolling step.

REFERENCES:
patent: 1474124 (1923-11-01), Steinecke
patent: 3439241 (1969-04-01), Martens
patent: 3602994 (1971-09-01), Layman
patent: 3662585 (1972-05-01), Bellmann
patent: 3676760 (1972-07-01), McDaniel
patent: 3681629 (1972-08-01), Drye
patent: 3728597 (1973-04-01), Cummens et al.

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