Zellweger Luwa Ag

Johannes Heusser

Hanspeter Wepfer

Enrico Biondi

Jurg Kreis

In a method and a device for clearing yarn, properties of the yarn are acquired and used to determine a yarn defect density profile. Yarn defects to be removed are defined by means of an adjustable clearing limit which is based on the density profile. In order to provide an optimum adjustment as frequently as possible, the clearing limit is automatically adjusted on the basis of the acquired properties in a control loop.

Method and device for clearing yarns

A system is disclosed for the transmission of data between a central unit and at least one functional unit via lines where each functional unit is connected to at least one sensor or actuator. Each functional unit includes an output amplifier for the transmission of data to a further functional unit and a memory for the storage of an interchangeable address. The system has three different operating modes which make it possible, depending on the requirement, to address the functional units as desired, to carry out a data interchange, or only to receive data.

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Adetswil, Switzerland

Johannes Heusser