Abstract: A device as well as a method for determining the diameter of a yarn balloon (B) formed by a continuous yarn at a workstation (1) of a yarn balloon forming textile machine. The workstation (1) comprises an electromagnetically functioning sensor means (33), designed and arranged in such a way that at least two interruptions of a measuring beam (42) of the sensor means (33) are caused by the yarn (5, 25) forming the yarn balloon (B) during every rotation of the yarn balloon (B) during the operation of the workstation (1), and in that the time interval between the interruptions of the measuring beam (42) can be recorded by the sensor means (33) and used for calculating the diameter of the yarn balloon (B).

Abstract: Yarn delivery device for a twisting or cabling machine having a first deflection roller for deflecting a yarn; a driven godet, arranged downstream of first deflection roller in yarn transport direction; a separator roller, arranged relative to the godet such that a yarn can be laid several times around the separator roller and the godet, said yarn being wrapped around separator roller and godet jointly; and a pitch lever, having a second deflection roller arranged downstream of godet in the yarn transport direction, for deflecting the yarn again. A cantilever, having a third deflection roller, which, in the yarn transport direction, is arranged downstream of second deflection roller and upstream of traversing yarn guide for feeding the yarn onto a take-up package, second deflection roller being arranged on a different side of a vertical plane extending through axis of rotation of the separator roller from the third deflection.

Abstract: Yarn delivery device for a twisting or cabling machine, for feeding a yarn via a traversing yarn guide to a take-up package, the yarn delivery device having a first deflection roller for deflecting a yarn; a driven godet, arranged downstream of first deflection roller in yarn transport direction; a separator roller, arranged relative to the godet such that a yarn can be laid several times around the separator roller and the godet, said yarn being wrapped around separator roller and godet jointly; and a pitch lever, having a second deflection roller arranged downstream of godet in the yarn transport direction, for deflecting the yarn again.

Abstract: A method for operating a spindle (2) of a two-for-one twisting or cabling machine, in which an outer yarn (5) is drawn off a first feed package (7) and the spindle (2) rotates in a yarn balloon (B), wherein the spindle (2) comprises a device (6) for influencing the balloon yarn tension of an outer yarn (5), which is connected to a control circuit (18), and has a spindle pot (19) for receiving a second feed package (15), a yarn deflection device (20), a balancing system (9) for forming a twisting or cabling point as well as a spooling and winding device (12). The drive of the yarn balloon (B) is performed via a fixed throw-off point (21) on the yarn deflection device (20).

Abstract: A device for determining the diameter of a yarn balloon (B) formed by a running yarn at a workstation (1) of a textile machine wherein the workstation (1) is provided with a mechanical, contact scanning sensor (22), which is designed and arranged so that during the operation of the workstation (1) it is positioned by a yarn forming the thread balloon (B) in an operating position dependent on the diameter of a thread balloon (B), and a sensor device (24) is provided which detects the operating position (BS) of the scanning sensor (22).

Abstract: A device as well as a method for determining the diameter of a yarn balloon (B) formed by a continuous yarn at a workstation (1) of a yarn balloon forming textile machine. The workstation (1) comprises an electromagnetically functioning sensor means (33), designed and arranged in such a way that at least two interruptions of a measuring beam (42) of the sensor means (33) are caused by the yarn (5, 25) forming the yarn balloon (B) during every rotation of the yarn balloon (B) during the operation of the workstation (1), and in that the time interval between the interruptions of the measuring beam (42) can be recorded by the sensor means (33) and used for calculating the diameter of the yarn balloon (B).

Abstract: A method for operating a workstation (1) of a yarn balloon forming textile machine, wherein a yarn balloon (B) formed by a continuous yarn (5) circling a spindle (2) of the workstation (1) is scanned with a sensor means (33) at said workstation. Data (D) recorded by the sensor means (33), providing information about the current diameter of the yarn balloon (B) to be monitored, is transmitted to a control circuit (18), in that the control circuit (18) calculates the current actual diameter of the yarn balloon (B) by means of this data (D) and further known data, compares this with a stipulated target diameter of the yarn balloon (B), and in that the control circuit (18) ensures that the yarn balloon (B) has the stipulated target diameter with the aid of a means (6) switched into the yarn path of the yarn (5), for influencing the yarn tension.

Abstract: A method for operating a spindle (2) of a two-for-one twisting or cabling machine, in which an outer yarn (5) is drawn off a first feed package (7) and the spindle (2) rotates in a yarn balloon (B), wherein the spindle (2) comprises a device (6) for influencing the balloon yarn tension of an outer yarn (5), which is connected to a control circuit (18), and has a spindle pot (19) for receiving a second feed package (15), a yarn deflection device (20), a balancing system (9) for forming a twisting or cabling point as well as a spooling and winding device (12). The drive of the yarn balloon (B) is performed via a fixed throw-off point (21) on the yarn deflection device (20).

Abstract: A device for determining the diameter of a yarn balloon (B) formed by a running yarn at a workstation (1) of a textile machine utilizes a mechanical, contact scanning sensor (22), which is designed and arranged so that during the operation of the workstation (1) it is positioned by a yarn forming the yarn balloon (B) in an operating position dependent on the diameter of a yarn balloon (B), and a sensor device (24) which detects the operating position (BS) of the scanning sensor (22).