Printing – Rolling contact machines – Rotary
Patent
1995-05-02
1996-12-31
Yan, Ren
Printing
Rolling contact machines
Rotary
101185, 101247, B41F 1324
Patent
active
055883621
ABSTRACT:
A cylinder throw-on and throw-off mechanism for a printing press having a plate cylinder and a printing cylinder, which are disposed with outer surfaces being separated from each other, and a blanket cylinder disposed therebetween includes a driving unit and a control unit. The driving unit has a motor serving as a driving source and moves the blanket cylinder between an impression-on position where the blanket cylinder is pressed against the plate cylinder and simultaneously pressed against the printing cylinder through a paper sheet and an impression throw-off position where the blanket cylinder is separated from the plate cylinder and the printing cylinder in accordance with a direction of rotation and the number of revolutions of the motor. The control unit sets an operation pattern of the motor, which is defined by the total number of revolutions of the motor and a number of revolutions of said motor on the basis of a printing condition, and drives and controls the motor in accordance with the set operation pattern.
REFERENCES:
patent: 5142981 (1992-09-01), Dettinger et al.
patent: 5445076 (1995-08-01), Sugiyama et al.
Hamabuchi Teruyoshi
Hirose Norio
Muto Hikoji
Sugiyama Hiroyuki
Komori Corporation
Yan Ren
LandOfFree
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