Maschinenfabrik Rieter Ag

Thomas Gisel

Armin Wirz

Peter Busenhart

Werner Klee

Arthur Haag

A textile machine with an apparatus for recognizing and correcting deviations of sequences of movements of an element (31) driven by a driving element (33). A device (51) acquires the arrival time (t.sub.4) of the driven element (31) and corrects the start time (t.sub.1) of the driving element (33) within a predefined time window (t.sub.1u -t.sub.1o) until the arrival time (t.sub.4) of the driven element (31) lies within a predefined time window (t.sub.2u -t.sub.2o) again.

Apparatus and method for changing and winding bobbins involving the

During the run-up of a bobbin winding machine with a gap between the contact roller and the bobbin tube on a chuck, a disturbance in the speed (VTW) of the contact roller caused by the contact of the bobbin package on the bobbin tube with the contact roller is used for instantly switching on a controller for the speed control of the speed of the chuck. The time (t1), the direction as well as the magnitude of the change in speed of the contact roller during the contact are used for correcting the speed ramp of the chuck drive during a subsequent winding process. The detuning by different speeds of the surfaces of the contact roller and the bobbin package can also be used at any time during the whole package build-up for controlling the chuck speed.

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Thun, Switzerland

Thomas Gisel