Crank drive for a material feeder

Details Crank drive for a material feeder Crank drive for a material feeder

1990-06-28

1993-04-20

Hail, III, Joseph J.

Advancing material of indeterminate length

By intermittent material-mover

Adjustable feeder

226136, 226139, 226158, B65H 2000

Patent

active

052034860

ABSTRACT:
A crank drive for the material feeder of a machine tool is constructed so that the position of the crank pin along a line of action thereof, viewed in a position/time curve of the crank pin, is a modified sine curve, which curve is modified in that the peaks of the sine curve are flattened. To achieve this, the crank pin is adjustable relative to a crank disc on the one hand by a basic eccentricity setting device and on the other hand by an eccentricity correcting device. The eccentricity correcting device comprises cams mounted stationarily on the bearing arrangement of the crank disc and a cam follower engaging the cams. The cam follower acts on a main slide movably guided on the crank disc. The basic eccentricity setting device is effective between the main slide and a secondary slide carrying the crank pin. The secondary slide is guided on the main slide.

REFERENCES:
patent: 3242768 (1966-03-01), Munschauer, Jr.
patent: 3263512 (1966-08-01), Handley
patent: 3585837 (1971-06-01), Bihler
patent: 3863823 (1975-02-01), Allred

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