Stamping and forming machine having adjustable stroke rams

Details Stamping and forming machine having adjustable stroke rams Stamping and forming machine having adjustable stroke rams

1992-10-29

1994-06-21

Jones, David

Metal deforming

With means to actuate both elements of tool-couple

72450, 72452, 72441, 100257, B21D 706, B21S 918

Patent

active

053219694

ABSTRACT:
Stamping and forming machine having reciprocable rams which move towards and away from each other between open and closed positions having adjustable eccentrics for adjusting the strokes of the rams. The rams are reciprocated by oscillating levers which are coupled to a power shaft by eccentric assemblies. Each eccentric assembly has a fixed eccentric on the power shaft and an adjustable eccentric which is rotatable, for adjustment purposes, with respect to the fixed eccentric thereby to change the stroke of the associated ram assembly.

REFERENCES:
patent: 3888104 (1975-06-01), Ribback
patent: 4497196 (1985-02-01), Bakermans et al.
patent: 4819476 (1989-04-01), Bakermans et al.
patent: 4934173 (1990-06-01), Bakermans et al.

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