US 5,142,977 AGranted

Device to engage, disengage and adjust the inking rollers or wetting rollers of a printing press

AssigneeMaschinenfabrik Wifag

InventorsPeter Gertsch, Robert Imhof, Andreas Miescher, Raffaele Faiazza

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Abstract

The present invention describes a device for moving rollers and in particular rollers of a printing press in two independent directions. Movement in each direction is independent of movement in the other direction. The roller has trunnions which are mounted in roller locks. The roller locks are then mounted on a frame of the printing press. Mechanisms inside the roller lock position the roller lock in one direction with respect to the frame and other mechanisms inside the roller lock position the roller in another direction with respect to the roller lock. This mechanisms are independently controlled and movement of one mechanism is independent of the movement of the other mechanism. By independently controlling these mechanisms the roller can be engaged, disengaged and adjusted with respect to the frame or any components mounted on the frame.

Claims22

Dependent claims

A device for positioning a transfer roller, the device comprising:

a frame;
a first stationary roller mounted on said frame;
a second stationary roller mounted on said frame;
a roller lock having means for mounting said roller lock displaceably on said frame in a first direction substantially tangential to the first stationary roller;
a first adjustment means for moving said roller lock in said first direction;
a roller lock position means for measuring position of said roller lock with respect to said frame;
a trunnion rotatably mounted to, and along the axis of, the transfer roller and having means for mounting said trunnion displaceably on said roller lock in a second direction substantially tangential to the second stationary roller and independent of said first direction;
a second adjustment means on said roller lock for moving said trunnion in said second direction independent of said first adjustment means moving said roller lock;
trunnion position sensing means for measuring position of said trunnion with respect to said roller lock;
and
programmable control means for independently moving the transfer roller in said first and second direction by independently controlling said first and second adjustment means and for receiving predetermined position information from external sources, and actual position information from said roller lock and trunnion position sensing means, said programmable control means using said position information to control said first and second adjustment means.

8 more elements

A device for adjusting the position of a roller, the device comprising:

a frame;
a trunnion rotatably mounted to, and along an axis of, the roller;
a roller lock having means for mounting said roller lock displaceably on said frame in a first direction relative to said frame, said trunnion having means for mounting said trunnion displaceably on said roller lock in a second direction independent of said first direction;
a first adjustment means on said roller lock for moving said roller lock in said first direction;
a second adjustment means on said roller lock for moving said trunnion in said second direction independent of said first adjusting means moving said roller lock;
and
programmable control means for independently moving the roller in said first and second directions by independently controlling said first and second adjustment means.

4 more elements

Device for engaging, disengaging, and adjusting a roller of a printing press, the device comprising:

a frame;
a first stationary cylinder mounted in said frame;
trunnions rotatably mounted on each end of the roller;
roller locks having means for mounting said roller locks displaceably on said trunnions, said roller locks also having means for mounting said roller locks displaceably on said frame;
first adjusting means in said roller locks for adjustment of the roller relative to said first stationary cylinder;
a second stationary cylinder mounted in said frame;
a second adjusting means in said roller locks for adjustment of the roller relative to said second stationary cylinder, said adjustment being independent of, and in an independent direction from, said first adjusting means adjusting the roller;
electrically controlled drives;
said first and second adjusting means are arranged in the form of first and second spindles, respectively, in said roller locks, said first spindle threadally engaging one of said trunnions, said second spindle threadally engaging said frame, said first and second spindles actuated via said electrically controlled drives;
programmable control means for independently moving the roller in independent directions by independently controlling said electrically controlled drives;
and
a potentiometer producing a signal dependent on the position of said electrically controlled drives and said signal being sent to said programmable control means.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/772,592Filed 4 Oct 1991 · continuation
Priority: DE 382551727 Jul 1988
Granted: 1 Sep 1992
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

B41F 31/30
Inking arrangements or devices: arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
B41F 31/32
Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor: lifting or adjusting devices
B41F
Printing machines or presses