SCHRÄGLAGENKORREKTURSYSTEM UND VERFAHREN ZUR KONTROLLE EINES DERARTIGEN SYSTEMS

A system for correcting skew of a web of material being fed through a machine includes first and second pinch assemblies placed at a distance transversely to a direction of feeding. First and second stepper motors drive the first and second pinch assemblies, respectively. A control provides first an...

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Bibliographic Details
Main Authors VENNER, CORNELIS W.M, LA VOS, PETER G, HOLTMAN, LODEWIJK T
Format Patent
LanguageGerman
Published 15.08.2010
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Summary:A system for correcting skew of a web of material being fed through a machine includes first and second pinch assemblies placed at a distance transversely to a direction of feeding. First and second stepper motors drive the first and second pinch assemblies, respectively. A control provides first and second pulse trains to drive the first and second stepper motors, respectively. A device determines a value for the skew of the web of material. A method for controlling the system includes establishing first and second corrective pulse train sections for the first and second stepper motors, respectively, in accordance with a determined skew value, and providing first and second pulse trains for driving the first and second stepper motors, respectively.
Bibliography:Application Number: AT20060123740T