Method for monitoring a textile machine having a plurality of workstations and a textile machine having a plurality of workstations, the textile machine having: a textile machine control unit, designed to capture different production figures of the individual workstations and to check whether the production figures exceed specified limit values; an input unit for inputting the limit values and selecting at least one production figure to be checked out of the set of production figures to be checked; and an indicating unit. The indicating unit has a plurality of signal units, which are arranged on the textile machine control unit and/or the workstations in question, are associated with the individual workstations and are designed in such a way that the result of the check of the at least one selected production figure to be checked for exceeding the allocated, specified limit value is indicated by different light signals.

Method for monitoring a textile machine having a plurality of workstations and a textile machine having a plurality of workstations, the textile machine having: a textile machine control unit, designed to capture different production figures of the individual workstations and to check whether the production figures exceed specified limit values; an input unit for inputting the limit values and selecting at least one production figure to be checked out of the set of production figures to be checked; and an indicating unit. The indicating unit has a plurality of signal units, which are arranged on the textile machine control unit and/or the workstations in question, are associated with the individual workstations and are designed in such a way that the result of the check of the at least one selected production figure to be checked for exceeding the allocated, specified limit value is indicated by different light signals.

In order to optically sense a yarn moved in the longitudinal direction of the yarn, a yarn sensor has a light source, a detector and a light guiding element. The yarn sensor is based on the effect of frustrated total internal reflection (FTIR). Because of the FTIR effect, scattered light exiting the light guiding element in the contact region between the yarn and an outer surface of the light guiding element is detected by means of the detector, in which case sensing of the yarn lying against the outer surface is enabled. Alternatively, the reduced intensity in the totally internally reflected beam is then sensed by the detector. The intensity in the totally internally reflected beam is reduced mainly by the scattered light coupled out of the light guiding element.

In order to optically sense a yarn moved in the longitudinal direction of the yarn, a yarn sensor has a light source, a detector and a light guiding element. The yarn sensor is based on the effect of frustrated total internal reflection (FTIR). Because of the FTIR effect, scattered light exiting the light guiding element in the contact region between the yarn and an outer surface of the light guiding element is detected by means of the detector, in which case sensing of the yarn lying against the outer surface is enabled. Alternatively, the reduced intensity in the totally internally reflected beam is then sensed by the detector. The intensity in the totally internally reflected beam is reduced mainly by the scattered light coupled out of the light guiding element.

Yarn-tension influencing device for a twisting or cabling machine for feeding a yarn via a traversing yarn guide to a take-up package, the yarn-tension influencing device having a first deflection roller, arranged downstream of a yarn handling device in the yarn transport direction and is provided for guiding the yarn from a balloon yarn guide through the yarn handling device and for deflecting the yarn; a second deflection roller, arranged downstream of the first deflection roller in the yarn transport direction and is provided for further deflection of the yarn; a third deflection roller, arranged downstream of the second deflection roller in the yarn transport direction and is provided for adjusting the angle of wrap of the yarn around an advance roller; and an advance roller, arranged downstream of the third deflection roller in the yarn transport direction and is provided for regulating the yarn tension. The yarn handling device is a yarn clamping and cutting device, and a sensor device is provided for monitoring the yarn, the second deflection roller being arranged on a plane different from a horizontal plane formed by the axis of rotation of the first deflection roller.

Yarn-tension influencing device for a twisting or cabling machine for feeding a yarn via a traversing yarn guide to a take-up package, the yarn-tension influencing device having a first deflection roller, arranged downstream of a yarn handling device in the yarn transport direction and is provided for guiding the yarn from a balloon yarn guide through the yarn handling device and for deflecting the yarn; a second deflection roller, arranged downstream of the first deflection roller in the yarn transport direction and is provided for further deflection of the yarn; a third deflection roller, arranged downstream of the second deflection roller in the yarn transport direction and is provided for adjusting the angle of wrap of the yarn around an advance roller; and an advance roller, arranged downstream of the third deflection roller in the yarn transport direction and is provided for regulating the yarn tension. The yarn handling device is a yarn clamping and cutting device, and a sensor device is provided for monitoring the yarn, the second deflection roller being arranged on a plane different from a horizontal plane formed by the axis of rotation of the first deflection roller.

Method for monitoring a textile machine having a plurality of workstations and a textile machine having a plurality of workstations, more particularly spinning positions, the textile machine having: a textile machine control unit, which is designed to capture different production figures of the individual workstations and to check whether the production figures exceed specified limit values; an input unit for inputting the limit values and selecting at least one production figure to be checked out of the set of production figures to be checked; and an indicating unit, which is connected to the textile machine control unit in order to optically output the result of the check of the at least one selected production figure to be checked for exceeding the allocated, specified limit value. In order to provide a method for monitoring a textile machine having a plurality of workstations and a textile machine having a plurality of workstations, said method and said textile machine enabling quick detection and identification of workstations whose production figures exceed specified limit values, the indicating unit has a plurality of signal units, which are arranged on the textile machine control unit and/or the workstations in question, are associated with the individual workstations and are designed in such a way that the result of the check of the at least one selected production figure to be checked for exceeding the allocated, specified limit value is indicated by means of different light signals.

Method for monitoring a textile machine having a plurality of workstations and a textile machine having a plurality of workstations, more particularly spinning positions, the textile machine having: a textile machine control unit, which is designed to capture different production figures of the individual workstations and to check whether the production figures exceed specified limit values; an input unit for inputting the limit values and selecting at least one production figure to be checked out of the set of production figures to be checked; and an indicating unit, which is connected to the textile machine control unit in order to optically output the result of the check of the at least one selected production figure to be checked for exceeding the allocated, specified limit value. In order to provide a method for monitoring a textile machine having a plurality of workstations and a textile machine having a plurality of workstations, said method and said textile machine enabling quick detection and identification of workstations whose production figures exceed specified limit values, the indicating unit has a plurality of signal units, which are arranged on the textile machine control unit and/or the workstations in question, are associated with the individual workstations and are designed in such a way that the result of the check of the at least one selected production figure to be checked for exceeding the allocated, specified limit value is indicated by means of different light signals.

A spinning device for manufacturing a thread from a supplied fibre band by a circulating air flow having a hollow spinning cone arranged in a spinning housing, the spinning housing having an envelope wall arranged coaxially and at a distance from the spinning cone and forming an envelope gap, and a nozzle device to which compressed air can be applied for producing an air flow circulating the spinning cone in the envelope gap. The spinning device having the spinning cone and the envelope wall for forming a capacitor unit to have electrodes arranged opposite one another with the envelope gap interposed and forming an electrode pair. A method for monitoring the spinning operation on the spinning device is also provided.

A spinning device for manufacturing a thread from a supplied fibre band by a circulating air flow having a hollow spinning cone arranged in a spinning housing, the spinning housing having an envelope wall arranged coaxially and at a distance from the spinning cone and forming an envelope gap, and a nozzle device to which compressed air can be applied for producing an air flow circulating the spinning cone in the envelope gap. The spinning device having the spinning cone and the envelope wall for forming a capacitor unit to have electrodes arranged opposite one another with the envelope gap interposed and forming an electrode pair. A method for monitoring the spinning operation on the spinning device is also provided.