System for monitoring roll density

Details System for monitoring roll density System for monitoring roll density

1989-05-10

1991-06-11

Lall, Parshotam S.

Boots, shoes, and leggings

364469, 364471, 377 24, G06F 1520

Patent

active

050238205

ABSTRACT:
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.

REFERENCES:
patent: 3564219 (1971-02-01), Mutziger
patent: 3898436 (1975-08-01), Pottebaum et al.
patent: 4052599 (1977-10-01), Whiteley et al.
patent: 4151403 (1979-04-01), Woolston
patent: 4335439 (1982-06-01), St. Denis
patent: 4422588 (1983-12-01), Nowisch
patent: 4535950 (1985-08-01), Lisnyansky

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