A workstation (1) of a two-for-one twisting or cabling machine which comprises a rotatably mounted spindle (2) and a balloon-yarn-guide-eye (9) height-adjustable by means of a drive (18, 29) coupled to a control device (20) which controls the drive (18, 29) in such a manner that it displaces the balloon-yarn-guide-eye (9) between operating positions (AP.sub.1, AP.sub.2) dependent upon production parameters and a resting position (RS) advantageous in the case of production interruptions and transient operating phases associated with the latter. A device (21, 23, 24, 25) is present for detecting a measured value (i), which is made available to the control device (20) and which causes the control of the drive (18, 29) to change the position of the balloon-yarn-guide-eye (9).

A workstation (1) of a two-for-one twisting or cabling machine which comprises a rotatably mounted spindle (2) and a balloon-yarn-guide-eye (9) height-adjustable by means of a drive (18, 29) coupled to a control device (20) which controls the drive (18, 29) in such a manner that it displaces the balloon-yarn-guide-eye (9) between operating positions (AP.sub.1, AP.sub.2) dependent upon production parameters and a resting position (RS) advantageous in the case of production interruptions and transient operating phases associated with the latter. A device (21, 23, 24, 25) is present for detecting a measured value (i), which is made available to the control device (20) and which causes the control of the drive (18, 29) to change the position of the balloon-yarn-guide-eye (9).

A method for operating a spindle (2) of a two-for-one twisting or cabling machine which comprises an adjustable balloon-yarn-guide-eye (9), wherein for the operation of the spindle (2) under production conditions, the balloon-yarn-guide-eye (9) is adjusted, on the basis of a measured value (i) correlating with the energy consumption of the spindle drive (3), to a first operating position (AP.sub.1), in which a position-dependent minimum of the energy consumption of the spindle drive (3) is reached.

A method for operating a spindle (2) of a two-for-one twisting or cabling machine which comprises an adjustable balloon-yarn-guide-eye (9), wherein for the operation of the spindle (2) under production conditions, the balloon-yarn-guide-eye (9) is adjusted, on the basis of a measured value (i) correlating with the energy consumption of the spindle drive (3), to a first operating position (AP.sub.1), in which a position-dependent minimum of the energy consumption of the spindle drive (3) is reached.

A flyer for spinning a fibrous roving onto a bobbin includes a housing defines a central hole passing therethrough. A center rod, supporting the bobbin, is rotated by a spinning system. A battery is contained in the flyer and powers an electric motor. A hollow level wind frame is affixed to the housing and defines an elongated slot passing therethrough. A level wind gear in the level wind frame is rotated by the electric motor. A level wind carriage system is driven by the level wind gear and oscillates repeatedly between a first end and a second end as the level wind gear is rotated, and includes a pawl engaged with the level wind gear. A guide is coupled to the pawl and passes through the elongated slot defined by the level wind frame. The fibrous roving passes through the guide.

A flyer for spinning a fibrous roving onto a bobbin includes a housing defines a central hole passing therethrough. A center rod, supporting the bobbin, is rotated by a spinning system. A battery is contained in the flyer and powers an electric motor. A hollow level wind frame is affixed to the housing and defines an elongated slot passing therethrough. A level wind gear in the level wind frame is rotated by the electric motor. A level wind carriage system is driven by the level wind gear and oscillates repeatedly between a first end and a second end as the level wind gear is rotated, and includes a pawl engaged with the level wind gear. A guide is coupled to the pawl and passes through the elongated slot defined by the level wind frame. The fibrous roving passes through the guide.