US 4,905,593 A · Combined damping and cylinder cleaning system for a printing machine

Abstract

To eliminate a separate cleaning roller to clean a forme cylinder and in application roller in a printing machine system, and utilize existing rollers of the damping system to apply cleaning fluid, a support lever (8, 26) axially journals and retains a damping liquid application roller (1) and a damping liquid transport roller (2); a pivot lever (11) is pivotably coupled to the supply lever (8, 26), and a guide arrangement is provided, for example formed by a link system (14, 15, 16) or a cam track and cam control element (27, 28) to control movement of the support lever under control of an operating element, such as a solenoid or a piston-cylinder arrangement (13). Movement of the support lever is controlled by the guide means between a first position a first position, in which the damping liquid application roller is engaged on the forme cylinder (4) and the damping liquid transport roller (2) is in surface engagement with the damping liquid application roller and the liquid supply roller and a second position, in which the damping liquid application roller is in liquid transfer contact with the cleaning fluid supply means (18) and the transport roller (2) is in engagement with the ink application roller (5).

Claims11

Dependent claims

Combined damping and cleaning system for a printing machine having

a forme cylinder (4) and an ink application roller (5) for supplying ink to the forme cylinder,
said system permitting, selectively, application of damping liquid to the forme cylinder or cleaning fluid to the ink application roller,
wherein the damping system includes
a damping liquid application roller (1);
a damping liquid transport roller (2);
and
a damping liquid supply roller (3);
a cleaning fluid supply means (18);
support lever means (8, 26) axially journalling and retaining the damping liquid application roller (1) and the damping liquid transport roller (2);
a pivot lever (11) pivotably coupled to the support lever means (8, 26);
lever guide means (14, 15, 16;
27, 28) controlling movement of the support lever means (8, 26);
and
operating means (13) coupled to the pivot lever (11) for moving the pivot lever and thereby control movement of the support lever means (8, 26) as guided by the lever guide means between
a first position, in which the damping liquid application roller is engaged on the forme cylinder (4) and the damping liquid transport roller (2) is in surface engagement with the damping liquid application roller and the liquid supply roller, and
a second position, in which the damping liquid application roller is in liquid transfer contact with the cleaning fluid supply means (18) and the transport roller (2) is in engagement with the ink application roller (5).

13 more elements

Combined damping and cleaning system for a printing machine having

a forme cylinder (4) and an ink application roller (5) for supplying ink to the forme cylinder,
said system permitting, selectively, application of damping liquid to the forme cylinder or cleaning fluid to the ink application roller,
wherein the damping system includes
a damping liquid application roller (1);
a damping liquid transport roller (2);
a damping liquid supply roller (3);
a cleaning fluid supply means (18);
and comprising, in accordance with the invention,
movable support means (8, 26;
11) retaining said damping liquid application roller (1) and said damping liquid transport roller (2) between side walls (17) of the printing machine;
operating means (13) coupled to the movable support means for moving said movable support means;
and
guide means (14, 15, 16;
27, 28) guiding movement of the movable support means, and hence of the damping liquid application roller (1) and the damping liquid transport roller (2), upon movement derived from said operating means, between
a first position, in which the damping liquid application roller is engaged on the forme cylinder (4) and the damping liquid transport roller (2) is in surface engagement with the damping liquid application roller and the liquid supply roller, and
a second position, in which the damping liquid application roller is in liquid transfer contact with the cleaning fluid supply means (18) and the transport roller (2) is in engagement with the ink application roller (5).

13 more elements

Dependencies are inferred from the claim text.

Combined damping and cylinder cleaning system for a printing machine

Life of this patent

Combined damping and cylinder cleaning system for a printing machine

Life of this patent

Abstract

Claims11