Cylinder flanging machines

Details Cylinder flanging machines Cylinder flanging machines

1988-01-20

1989-09-05

Spruill, Robert L.

Metal deforming

By use of tool acting during relative rotation between tool...

During rotation of work

72334, 72111, B21D 1904

Patent

active

048627194

ABSTRACT:
An integral outwardly extending transverse annular flange is formed on one or both extremities of a previously formed cylinder, circumferentially spaced circular openings are then punched in the one or both flanges. An adjustable expansible and freely rotary mandrel, adapted to grasp tightly the internal wall of the cylinder, is mounted adjacent to one end of a movable support which is pivotally mounted and movable relative to the base from a horizontal to a vertical position. A pair of cylindrical forming or tooling rolls on parallel vertical axes are mounted on the base. The axes of the inner roll, adjacent to the pivotal joint is fixed, while the axis of the outer roll is movable and operable under high pressure to clamp a small portion of the periphery of the lower extremity of the cylinder between the rolls, corresponding to the width of the flange. The simultaneous rolling of the tooling rolls and the rocking of the support from the horizontal to the vertical, with the concomitant rotary movement of the main portion of the cylinder from a vertical axis to a horizontal axis results in the formation of the flange in a vertical plane. When the support returns to a horizontal plane, a hole punch unit locked on the support separated from the cylinder during flanging is shifted into position to pierce a predetermined number of holes in the flange.

REFERENCES:
patent: 317145 (1885-05-01), Kollberg
patent: 582863 (1897-05-01), Jones
patent: 758145 (1904-04-01), Nordenskjold
patent: 802804 (1905-10-01), Enright
patent: 1219174 (1917-03-01), Sessions
patent: 1268239 (1918-06-01), Gressle
patent: 1634057 (1927-06-01), Taylor
patent: 1807824 (1931-06-01), Booth

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