Uncertainty of slip measurements in a cutting system of converting machinery for diapers production

In this paper slip measurements are described between the peripheral surfaces of knife and a not driven anvil cylinders in a high velocity, high quality cutting unit of a diaper production line. Laboratory tests have been carried out on a test bench with real scale components for possible on line application of the method. With reference to both starting and steady state conditions correlations with the process parameters have been found, achieving a very satisfactory reduction of the slip between the knife cylinder and the not driven anvil one. Accuracy evaluation of measurements allowed us to validate the obtained information and to evaluate the detection threshold of the measurement method in the present configuration The analysis of specific uncertainty contributions to the whole uncertainty could be also used, to further reduce the requested uncertainty of the measurement method.

Abstract licence: CC BY

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