Rieter Cz S.r.o.

Rieter Ingolstadt Gmbh

Rieter Cz A.s.

Ladislav Hajek

Jiri Sloupensky

Martin Zipperer

Pavel Kousalik

Miroslav Stusak

Jiri Stancl

Vladimir Skrivanek

A method and device are provided for removing a faulty yarn portion at a work station of an open-end spinning machine after the work station is stopped in a controlled manner, particularly after a defect of the spun yarn is detected by a quality sensor. Prior to a request to connect a suction nozzle of the work station for sucking off of the faulty yarn portion, the value of a vacuum in a central channel of the vacuum system of the open-end spinning machine is determined and evaluated. The suction nozzle is connected to the central vacuum channel only after the current capacity of the vacuum source detected is sufficient, or only after a sufficiently high vacuum is achieved.

Method and a device for removing the faulty yarn portion from a work station of an open-ending spinning machine

A CMOS optical detector includes a plurality of optical elements for a device for detecting parameters of moving yarn or another linear textile formation on textile machines by means of a perpendicular projection of yarn onto individual optical elements of a sensor with the aid of one source of radiation. The optical elements are arranged in two parallel rows perpendicular to the direction of the movement of the projection of yarn. Each optical element produces an output analog signal corresponding to the intensity of its irradiation. The individual optical elements of the first row are oriented to have their longer sides in the direction of the movement of the projection of yarn, whereas the optical elements of the second row are oriented to have their longer sides perpendicular to the direction of the movement of the projection of yarn.

CMOS optical detector with a plurality of optical elements for device for monitoring parameters of a moving yarn on textile machines

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Brandys nad Orlici, Czechia

Ladislav Hajek