Bending apparatus

Details Bending apparatus Bending apparatus

1990-06-06

1992-03-24

Crane, Daniel C.

Metal deforming

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

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

B21D 708

Patent

active

050976923

ABSTRACT:
An apparatus method for bending channel cross-section strip or panel material in which the material is passed between an infeed roller set 10, 16, 18, an intermediate roller set 12, 20, 22 and an outfeed roller set 14, 24, 26. At least one of the rollers of each roller set has two axially spaced annular projections which define an accommodation space for the flanges of the strip material. The axial spacing between these annular projections is reduced between the infeed and outfeed roller sets to enable the panel cross-section to be retained over a wide range of panel materials and curvature.

REFERENCES:
patent: 1459660 (1923-06-01), Felten
patent: 3452568 (1969-07-01), Vihl
patent: 4177702 (1978-10-01), Foster
patent: 4615199 (1986-10-01), MacLeod
patent: 4707232 (1987-11-01), Batzill et al.

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