Drum printing machines having drive means with freewheel and cra

Details Drum printing machines having drive means with freewheel and cra Drum printing machines having drive means with freewheel and cra

1979-06-22

1982-01-05

Crowder, Clifford D.

Printing

Special article machines

Rotating object

101126, B41F 1722

Patent

active

043087922

ABSTRACT:
A printing machine is disclosed comprising a drum with a plurality of article holding mandrels. A feeding mechanism selectively feeds and positions article to be printed on the mandrels. An ejection mechanism automatically removes the printed articles from the mandrels. A drive effects stepwise annular displacement of the drum. A first actuating means effects reciprocating operation of the feeding mechanism and another actuating means effects reciprocating operation of the ejecting mechanism. Both the actuating mechanisms are controlled in synchronism with the drive and are independent and distinct from each other. The drive comprises a freewheel having an inner race fixed for rotation with the drum and a crank-connecting rod system attaching the outer race of the freewheel to a rotatably mounting driving shaft. Preferably the speed ratio of the actuating means of the feeding mechanism to that of the ejection mechanism is 2 to 1. The crank-connecting rod system comprises rods and cranks which are of adjustable length.

REFERENCES:
patent: 2800872 (1957-07-01), Remington et al.
patent: 2835371 (1958-05-01), Davis
patent: 3104744 (1963-09-01), Wade
patent: 3110247 (1963-11-01), Simpson
patent: 4092447 (1978-05-01), Frederick et al.

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