Memminger-Iro Gmbh

Other

Iro Ab

Friedrich Weber

Hermann Schmodde

Eberhard Leins

Ludwig Ketterer

Kurt A Jacobsson

Lars Helge Tholander

Lars Helge Gottfrid Tholander

Kurt Arne Gunnar Jacobsson

Rolf Huss

Attila Horvath

Josef Fecker

Filippo Oneda

Markus Kleindorp

In order to monitor/adjust production in a circular knitting machine including several knitting systems and several yarn feeder devices, yarn is fed to active knitting systems from several supply devices operating according to at least two different yarn feeding principles, and in a non-positive manner. The individually fed amounts of yarn are continuously measured by means of scanned real rotation signals of the feeder devices. In order to obtain monitoring information and/or adjustment measures, comparisons are made with corresponding set amounts of yarn within at least one range of tolerance, the extent of which is adapted at least to yarn quality and/or yarn path parameters. At least one user interface can be configured in a display in a computerised production monitoring/adjustment device, whereby it is possible to select therein each individual yarn feeder device according to an optimum yarn transport principle for a specific knitting system, from a plurality of yarn feeder devices which are arranged on the knitting machine in an operative state.

Method for monitoring/adjusting production in a knitting machine, and a monitoring/adjusting device therefor

Method and apparatus for monitoring scanning conditions during control

A yarn feeder intended particularly for flatbed knitting machines and elastic yarns has a yarn tension sensor which is provided with a calibration device. This device lifts the yarn from a peg that is part of the yarn tension sensor, at times in which this can be done without impairing operation of the yarn feeder. Such times are preferably time slots when no yarn feeding is necessary. Once the yarn has been lifted from the peg, a zero point calibration is performed. Zero point drifting of the entire sensor system, including its measurement circuit, can be detected and compensated for.

Yarn tension sensor with improved calibration

Yarn supply apparatus with electronic control

Method and apparatus for detecting a thread supply boundary on a yarn

In a method and system for the detection of faults in a length of textile fabric, the length of fabric is continuously scanned by an electro-optical sensor head. Light detectors located in a strip-form sensing zone of the sensor head are assembled in groups and emit group-specific fault signals. These fault signals are analyzed multi-dimensionally for the identification of spot faults and/or long faults, the criteria for analysis being the signal amplitude, the signal length, the recurrence of the signals and their periodic repeat at each revolution of the machine. Display, control counter devices and the like are energized as a function of the result of the analysis.

Method and system for the detection of faults in a length of textile

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Herzogsweiler, Germany

Friedrich Weber