Printing – Rolling contact machines – Rotary
Reexamination Certificate
2000-07-31
2001-12-11
Eickholt, Eugene (Department: 2854)
Printing
Rolling contact machines
Rotary
C101S248000, C101S216000, C101S181000
Reexamination Certificate
active
06327976
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a method for determining an angle of rotation position of a movable cylinder of a printing press.
DESCRIPTION OF THE PRIOR ART
A device for an angular position sensor is known from DE 196 14 818 A1, wherein a stator of the angular position sensor is arranged at a fixed angle in respect to the lateral frame.
DE 197 20 952 A1 describes a method for compensating a rotating movement superimposed on the rotating movement of a cylinder because of an eccentric movement. The compensation is performed by a control circuit, which is supplied with the actual angle of rotation of the cylinder in respect to an eccentric device, as well as with the actual angle of rotation of the eccentric device, or with an angular function derived therefrom.
SUMMARY OF THE INVENTION
The object of the present invention is directed to providing a method for determining an angle of rotation of a movable cylinder of a printing press.
In accordance with the invention, this object is attained by using an angle of rotation position sensor. A first angle of rotation of the component in a reference position is determined. In a second position of the component, a second angle of rotation is also determined. A difference between the two is used as the correction value for determining the actual angular position of the component in its second position.
In connection with the drive mechanism in accordance with the present invention for cylinders of a printing press, it is possible in an advantageous manner to arrange an angle of rotation position sensor in any arbitrary manner, i.e. an angle of rotation position of the angle of rotation position sensor in respect to the lateral frame need not be constant during the movement of the cylinder.
It is also possible to remove errors, for example as a result of production-related tolerances.
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Eickholt Eugene
Jones Tullar & Cooper PC
Koenig & Bauer Aktiengesellschaft
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