Timed ejector for a header

Details Timed ejector for a header Timed ejector for a header

1977-09-15

1979-03-27

Combs, E. M.

72427, B21D 4500, B21K 146

Patent

active

041457846

ABSTRACT:
An ejector mechanism associated with the punch or punches in a header, operable to free the work blank from the punch after a heading blow so that the blank may remain in the die for a further forming blow, the mechanism including timing means to insure actuation of the ejector at the moment when the punch starts its withdrawal movement, as well as clearing of the ejector to prevent transmission of a load to the ejector mechanism on the heading blow.

REFERENCES:
patent: 2547304 (1951-04-01), Broscomb
patent: 3127626 (1964-04-01), Friedman
patent: 3238761 (1966-03-01), Hoyt
patent: 3266071 (1966-08-01), Nebendorf
patent: 3299453 (1967-01-01), Van De Meerendonk
patent: 3802013 (1974-04-01), Nebendorf et al.
patent: 3820376 (1974-06-01), Koch et al.
patent: 4091486 (1978-05-01), Kalt

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