Metal deforming – By deflecting successively-presented portions of work during... – By use of deflector arranged to bend work transversely of...
Patent
1987-10-28
1989-03-14
Crane, Daniel C.
Metal deforming
By deflecting successively-presented portions of work during...
By use of deflector arranged to bend work transversely of...
72131, 83636, B21D 508
Patent
active
048115878
ABSTRACT:
An apparatus for making a panel, preferably a panel having a base and two sidewalls extending from opposite sides of the base and having lateral flanges. The apparatus includes a frame having a series of sets of forming rollers for forming flat sheet metal into the panel. A partially formed panel rests on a pair of spaced base dies, with the sidewalls supported by two pairs of spaced support dies. A shearing blade is driven in a reciprocating motion between a raised position and a lowered position moving past the dies to shear the panel. Preferably, the cutting edge of the blade includes a series of concave serrations along its length, with each serration having an arc terminating in an apex at both ends. The pairs of support dies are removably mounted so that they may be replaced by other die pairs to provide support for different configurations of panel sidewalls and edge flanges. In addition, one of the pairs of support dies is laterally adjustable to accommodate panels of different widths.
REFERENCES:
patent: 1161705 (1915-11-01), Lloyd
patent: 2176115 (1939-10-01), Yoder
patent: 2346990 (1944-04-01), Oftedal et al.
patent: 3119296 (1964-01-01), Foster
patent: 3771401 (1973-11-01), Jasinski
patent: 3886779 (1975-06-01), McClain
patent: 4218946 (1980-08-01), Witzler
patent: 4471641 (1984-09-01), Mitchell
patent: 4549422 (1985-10-01), Harrow
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