Patent ID: 6039282
Filing Date: 2000-03-21
Classification: B65H

Abstract:
A method for monitoring the application of paraffin to a traveling yarn at a winding station of a cheese-producing textile machine, comprising the steps of driving a cheese frictionally by peripheral contact with a driven friction drum, alternatingly switching the driving of the friction drum on and off at intervals to produce periodic acceleration phases causing slippage between the friction drum and the cheese and intervening slippage-free run-out phases for preventing pattern yarn windings, and monitoring frictional behavior between the cheese and the friction drum during the yarn winding by determining and evaluating values which are proportional to the coefficient of friction including continuously determining and comparing the peripheral speeds of the friction drum and the cheese as winding of the cheese progresses and identifying significant deviations in the relationship of the peripheral speeds of the friction drum and the cheese as a loss of paraffin application.