Press feed apparatus including a linkage mechanism having a thre

Details Press feed apparatus including a linkage mechanism having a thre Press feed apparatus including a linkage mechanism having a thre

1991-05-03

1993-01-26

Stodola, Daniel P.

Advancing material of indeterminate length

By intermittent material-mover

Adjustable feeder

226139, 226158, B65H 2018

Patent

active

051816423

ABSTRACT:
A press feed is provided having a simple, low-friction, low-inertia linkage mechanism to positively drive feed rolls or grippers of the press feed with substantially uniform pressure. The linkage mechanism includes a three-link assembly having first and second substantially parallel links and a third cross link pivotally connected to the first and second links. The first and second links are pivotally mounted to a housing of the press feed substantially equidistant from the connections to the third cross link. The third cross link has a groove extending substantially at right angles to the transverse axis of the third cross link extending between the connections of the third cross link to the first and second links. First and second slides are positioned in the groove in the third cross link and each slide is connected to a swing arm drivingly connected to the feed roll shafts such that upon operation of the press feed the third cross link moves through an arc defined by a preselected feed length to be fed by the press feed to the press.

REFERENCES:
patent: 4106324 (1978-08-01), Gotz
patent: 4316569 (1982-02-01), Gentile
patent: 4415108 (1983-11-01), Katoh
patent: 4420107 (1983-12-01), Seyffert et al.
patent: 4449658 (1984-05-01), Gentile
patent: 4487352 (1984-12-01), Paris
patent: 4599683 (1985-10-01), Kato
patent: 4601420 (1986-07-01), Kato
patent: 4776505 (1988-10-01), Kato
patent: 4848636 (1989-07-01), Kato

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