Device for bending ring segment-shaped plate blanks into conical

Details Device for bending ring segment-shaped plate blanks into conical Device for bending ring segment-shaped plate blanks into conical

1978-08-21

1980-04-01

Mehr, Milton S.

Metal deforming

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

By use of deflectors arranged to bend work longitudinally of...

72171, B21D 1108, B21D 514

Patent

active

041955099

ABSTRACT:
A device for bending ring segment-shaped plate blanks into conically shaped parts includes a pair of roll stands, a top roller, or a centrally positioned pair of top rollers supported between the roll stands, and a pair of side rollers positioned on either side of the top roller and also supported between the roll stands. Means are provided for driving the blanks between the top roller and the side rollers to form the conically shaped parts. At least one abutment member is carried by the device for engaging and guiding the short arc edge of the plate blanks. An elastic and adjustable counter pressure mechanism is connected to the abutment member so that at least a component of the bearing pressure on the abutment member is transmitted to the counter pressure mechanism for controlling the means for driving the plate through the rollers to form the conically shaped parts.

REFERENCES:
patent: 2806096 (1957-10-01), Erkes
patent: 3287953 (1966-11-01), Boldrini

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