Method and apparatus for making grain bin flooring

Details Method and apparatus for making grain bin flooring Method and apparatus for making grain bin flooring

1986-03-27

1988-04-12

Crane, Daniel C.

Metal deforming

With cutting

By composite tool

72385, 72414, 29 62, 291635R, B21D 1302, B21D 2810

Patent

active

047366109

ABSTRACT:
Corrugated grain bin floor plates are manufactured from flat metal sheets by a progressive die set in a punch press. A metal sheet is fed into a slitting section of the die set to form slits in the sheet extending in the longitudinal direction of the sheets. The sheet is then fed to a corrugating section of the die where the sheet is corrugated with the corrugations running longitudinally of the sheet. The metal along the slits is stretched and reformed to form openings covered by an upper hood to prevent grain from falling through the openings. The openings are located at a neutral axis for the corrugations. The bending and drawing of the metal in the sheet provides an increase in the strength of the grain floor plates.

REFERENCES:
patent: 1052888 (1913-02-01), Clark
patent: 2289150 (1969-03-01), Tangerman
patent: 3430476 (1969-03-01), Duda
patent: 4073110 (1978-02-01), Kennedy
patent: 4194277 (1980-03-01), Rubinshtein et al.
patent: 4418558 (1983-12-01), Simmons
patent: 4502315 (1985-03-01), Dubrovsky et al.
patent: 4510786 (1985-04-01), Strangward

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