Printing machine with dual ink applicators
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United States of America Patent
Stats
-
May 6, 2003
Grant Date -
Aug 22, 2002
app pub date -
May 4, 2001
filing date -
Feb 20, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Two ink applicators, each with an ink roll and an ink chamber, for supplying ink to a print roll, and one or more applicator adjustment mechanisms for retracting one ink applicator away from the print roll while the other ink applicator contacts and supplies ink to the print roll. The applicator adjustment mechanisms has eccentric bearings and gears, a primary actuator operates each applicator adjustment mechanism, and a secondary actuator operates a travel limiting mechanism connected to the primary actuator. Alternatively, one or more actuators operate one or more pivot arms, with the ink applicators mounted thereon, for engaging or retracting the ink applicators. A main drive rotates the print roll and the ink rolls, a registration adjustment mechanism with differential gearing permits adjusting the print roll rate of rotation, and an idle drive mechanism with clutches and motors permits rotating the ink rolls independently of the main drive.
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