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AssigneeSchubert & Salzer
InventorsPeter Artzt, Gerhard Egbers, Rolf Guse, Sohrab Tabibi
Estimating the term…
A method and apparatus for detecting the faulty working of spinning units of an open-end spinning machine by monitoring the faults in yarn as it is fed from the spinning machine. An electrical signal is produced by a sensor indicating faults appearing in the yarn. Another signal of predetermined frequency corresponding to the speed of delivery of the yarn from the spinning machines is generated. The electrical signal produced by the sensor is electrically multiplied by the signal of predetermined frequency for producing a differential signal. This differential signal is filtered, shaped and integrated and subsequently compared with a preset threshold value for producing a signal indicating when the occurrence of faults exceed a predetermined threshold. This signal can be used for stopping the spinning unit.
A method of detecting faulty working of spinning units of an open-end spinning machine by monitoring faults occuring in yarn being produced by open-end spinning machines, a fault sensing device positioned between a spinning compartment and a bobbin which receives the yarn, said fault sensing device generating an electrical signal responsive to faults occurring in said yarn, said method comprising the following steps:
A method of detecting periodically recurring faults in yarn produced on a spinning machine for determining when components of said spinning machine are not functioning properly, said spinning machine having rotating components thereon which rotate at a rate corresponding to the speed that the yarn is being delivered from said spinning machine, comprising the following steps:
An apparatus for detecting the faulty working of spinning units of an open-end spinning machine by monitoring the faults in yarn as it is fed from a spinning compartment to a winding bobbin, said apparatus comprising:
Dependencies are inferred from the claim text.