Patent ID: 6557465
Filing Date: 2003-05-06
Classification: B41F

Abstract:
A machine for operating on blanks, comprising:a machine frame; at least one impression member supported by the frame; at least one rotary print roll supported by the frame and disposed proximate to the impression member, wherein the impression member and the print roll define therebetween a nip for receiving the blanks in series and transporting the blanks through the machine; at least two ink applicators for each print roll, each ink applicator comprising a rotary ink roll that rotates on an axle and an ink chamber mechanism disposed adjacent the ink roll, with each ink roll disposed proximate to the print roll and each ink applicator supported by the frame, wherein the ink chambers apply ink to the corresponding ink roll, which selectively apply ink to the print roll, which prints on the blanks; at least two applicator adjustment mechanisms, wherein each applicator adjustment mechanism comprises two eccentric bearings, with one eccentric bearing rotationally mounted between an end of the axle and the frame and the other eccentric bearing rotationally mounted between another end of the axle and the frame, wherein at least one of the eccentric bearings has an eccentric bearing gear, and wherein each adjustment mechanism further comprises at least one adjusting shaft rotationally mounted to the frame and disposed proximate to one of the ink rolls, and at least one adjusting shaft gear coupled to the adjusting shaft and driving the eccentric bearing gear, wherein one applicator adjustment mechanism is operatively connected to one ink applicator and the other applicator adjustment mechanism is operatively connected to the other ink applicator, wherein each ink applicator is moved between an engaged position and a retracted position relative to the print roll in response to rotation of the adjusting shaft.