Apparatus and method for manufacturing curved building panels

Details Apparatus and method for manufacturing curved building panels Apparatus and method for manufacturing curved building panels

1978-03-06

1979-05-15

Mehr, Milton S.

Metal deforming

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

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

72173, B21D 514

Patent

active

041540778

ABSTRACT:
Apparatus and method for forming an elongate panel having a two-dimensional sectional profile into a curved configuration is disclosed. A pair or juxtaposed feed rolls compress the panel between them and advance the panel. A curving roll is located proximate and downstream of the feed rolls. The curving roll has a surface conformed to the outside surface of the panel, and is located in the path of the panel as it exits the feed rolls to bend the panel into a curved configuration. An anti-distortion roll is juxtaposed to the curving roll. The anti-distortion roll has a surface conformed to the inside surface of the panel, and the panel is compressed between the curving roll and the anti-distortion roll. The combination of the curving roll, the anti-distortion roll, and feed rolls cause the panel to bend about a neutral line within the panel, and the bending of the panel does not cause distortion of its side walls. To further inhibit unwanted distortion, the curving and anti-distortion rolls may be driven at a slightly greater speed than the feed rolls to tension the panel as it is curved.

REFERENCES:
patent: 2279197 (1942-04-01), Hoell
patent: 2339355 (1944-01-01), Rutten
patent: 2986193 (1961-05-01), Howell
patent: 3073021 (1963-01-01), Goodwill et al.

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