System for monitoring roll density

Details System for monitoring roll density System for monitoring roll density

B - Operations, Transporting

65

H

354/21

B65H 18/26 (2006.01) G06F 15/20 (1990.01)

Patent

CA 2014213

ABSTRACT OF THE DISCLOSURE Separate density profiles are obtained for each station of a multi-station winder. The technique requires a single processor for simultaneously monitoring the density of any number of rolls being wound. The density may also be monitored for the unwind roll for determination of roll structuring changes by a winder. A simple system is provided in which each of the rolls is provided with an encoder. The encoder of a center roll of fixed diameter produces a fixed number of pulses per revolution representing paper length and the pulses produced by the encoders of each of the winding stations are counted along with the pulses produced by the winder of the center fixed diameter roll for computing density from roll and angular parameters and basis weight.

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