Transfer of a flexible web member from supply reel to a take-up reel

作者: John L. Hiley , Stephane M. d'Alayer de Costemore d'Arc

DOI:

关键词: DetectorReelAngular velocityDisplay deviceElectrical engineeringRotational speedSignalTransfer (computing)Position (vector)Engineering

摘要: A method for controlling the transfer of a flexible web member from supply reel to take-up reel, according which rotational speeds and are measured whereby ratio between these measurements is established independently speed direction movement member. The comprises steps storing reference information representing characteristics different types web, releasing corresponding reels webs used, generating intermediate signals represent said combining with released output in dependence upon momentary position relation one or other ends thereof, using purpose visually displaying and/or certain operations apparatus. Apparatus also disclosed comprising angular detectors measuring each reels, micro-processor having two counters totalizing pulse generated by divider circuit generating, on receiving control signal, signal contents counters, memory containing relating stored used instantaneous its ends. applied display device serving indicate