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

1984-08-03

1986-07-08

Bray, W. D.

Metal deforming

With cutting

By composite tool

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

Patent

active

045985693

ABSTRACT:
Corrugated grain bin floor plates are manufactured from a continuous flat metal strip by a progressive die set in a punch press. The metal strip is fed into a slitting section of the die set to form slits in the sheet extending in the longitudinal direction of the strip. The strip is then fed to a corrugating section of the die set where the sheet is corrugated with the corrugations running longitudinally of the strip. 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 strip provides an increase in the strength of the grain floor plates. The floor plates are severed from the strip at the end of the die set.

REFERENCES:
patent: 2289150 (1942-07-01), 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.

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