Machine for flattening sheet metal

Details Machine for flattening sheet metal Machine for flattening sheet metal

1977-10-05

1979-03-20

Mehr, Milton S.

Metal deforming

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

By use of deflected arranged to provide longitudinally...

B21D 102

Patent

active

041447310

ABSTRACT:
A plurality of horizontal lower rolls are rotatably mounted in a machine frame. A plurality of nuts are carried by the machine frame and axially retained and rotatable on respective vertical axes, which are horizontally spaced apart in the longitudinal direction of said lower rolls and in a direction which is transverse to said longitudinal direction. A plurality of screws are in threaded engagement with respective ones of said nuts. A plurality of upwardly and downwardly convex spherical bearings are carried by respective ones of said screws above said nuts. An upper yoke assembly comprises an upper yoke member, a plurality of upper rolls rotatably mounted in said upper yoke member and disposed above said upper rolls and defining nips therewith, and a plurality of concave spherical bearings, which are rigid with said upper yoke member and each of which has upwardly and downwardly concave bearing faces respectively disposed below and above one of said convex bearings and engagable therewith. Spring means are provided, which urge said concave bearings upwardly relative to said convex bearings, and actuating means for rotating said nuts relative to said screws.

REFERENCES:
patent: 1959492 (1934-05-01), Moses
patent: 2009508 (1935-07-01), Maussnest
patent: 2827945 (1958-03-01), Maust
patent: 3477266 (1969-11-01), Fornataro
patent: 3606784 (1971-09-01), Schluter

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