Method for continuously straightening thin metal strips

Details Method for continuously straightening thin metal strips Method for continuously straightening thin metal strips

1987-12-28

1989-04-11

Crane, Daniel C.

Metal deforming

By deflecting successively-presented portions of work during...

By use of deflected arranged to provide longitudinally...

72183, 72205, B21D 102, B21D 2500

Patent

active

048194700

ABSTRACT:
A method of continuously straightening metal strip comprises directing the strip over devices which act on the strip to effect its straightening by first causing a stretching and leveling and thereafter stretching and bending. The device for continuously straightening the thin metal strip comprises a plurality of entrance rollers arranged in succession at an entrance portion and a plurality of delivery rollers arranged in succession at a delivery portion with a stretching and bending device arranged between the two portions. The metal strip is guided over the entrance and delivery rollers as the rollers are driven by a drive motor and a common device member driven by the motor. At least two of the entrance rollers and at least two of the delivery rollers are tensioning rollers. A differential is included in the drive of each tensioning roller and it includes an overdriving motor with an adjustable speed.

REFERENCES:
patent: 3348400 (1967-10-01), Korf
patent: 3374653 (1968-03-01), Zeigler
patent: 3427848 (1969-02-01), Gay
patent: 3626737 (1971-12-01), Defontenay
patent: 3641797 (1972-02-01), Bell et al.
patent: 3686921 (1972-08-01), Roper
patent: 3839888 (1974-10-01), Greenberger
patent: 3924428 (1975-12-01), Noe

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