A winding head includes an annular magazine for storing the quantity of wire required to wind a torus, a first mechanism for driving the magazine in rotation, and a traveler for guiding the wire, at the output of the magazine, around the torus. The winding head includes a second mechanism, distinct from the first mechanism, for driving the traveler in rotation, such that the magazine and the traveler can be driven in rotation independently of one another.

A thread traversing device for a winding device of a textile machine producing cross-wound bobbins including a thread guide housing having a thread guide, and a traversing device to reversibly traverse along a direction of axis of the cross-wound bobbin to be produced. At least one vacuum system comprising at least one fluid guide is provided, wherein the thread guide housing is designed and wherein the traversing device is associated with the thread guide housing so as to, in a work station of the textile machine, reversibly traverse the thread guide along a direction of the axis of rotation of the cross-wound bobbin to be produced, and wherein the thread guide housing can be brought into fluidic communication with the fluid guide in order to apply a vacuum to the thread guide housing.

A thread traversing device for a winding device of a textile machine producing cross-wound bobbins including a thread guide housing having a thread guide, and a traversing device to reversibly traverse along a direction of axis of the cross-wound bobbin to be produced. At least one vacuum system comprising at least one fluid guide is provided, wherein the thread guide housing is designed and wherein the traversing device is associated with the thread guide housing so as to, in a work station of the textile machine, reversibly traverse the thread guide along a direction of the axis of rotation of the cross-wound bobbin to be produced, and wherein the thread guide housing can be brought into fluidic communication with the fluid guide in order to apply a vacuum to the thread guide housing.

It is an object of the present invention to specify a type of sheet to be used using a sensor that detects a sheet separated from a roll at the time of automatic sheet feeding. A sheet supplying apparatus according to the present invention includes a driving unit configured to cause a roll including a wound consecutive sheet to rotate in a first direction for feeding the sheet or a second direction opposite to the first direction, a sensor that detects the sheet separated from an outer circumferential surface of the roll, wherein, in a case in which the sensor detects a leading end portion of the sheet while the roll is being rotated in the second direction, the driving unit changes a rotation direction of the roll from the second direction to the first direction and feeds the sheet, and wherein the sheet supplying apparatus further includes a specifying unit configured to specify a type of the sheet on the basis of an output of the sensor while the roll is being rotated in the second direction.

An improved system for handling delicate linear media and in particular to a method and apparatus for winding delicate linear media such as superconducting wire or tape or optical fibers onto a spool. A combination of direct closed loop control and media routing design facilitates the handling of the delicate media without causing damage. The axial tension in the linear media may be closely controlled during winding by means of feedback control loop using tension measurements to control the rotation speeds of the wind-from and wind-to spools. Further, during winding, the delicate linear media is only exposed to large radius bends with no reverse bending. Finally, output devices and features, commercial or otherwise, made possible by delicate linear media handling are revealed. This includes advanced SC devices and features.

An improved system for handling delicate linear media and in particular to a method and apparatus for winding delicate linear media such as superconducting wire or tape or optical fibers onto a spool. A combination of direct closed loop control and media routing design facilitates the handling of the delicate media without causing damage. The axial tension in the linear media may be closely controlled during winding by means of feedback control loop using tension measurements to control the rotation speeds of the wind-from and wind-to spools. Further, during winding, the delicate linear media is only exposed to large radius bends with no reverse bending. Finally, output devices and features, commercial or otherwise, made possible by delicate linear media handling are revealed. This includes advanced SC devices and features.

Method for implementing a correct winding of a wire on a spool (100). The method also comprises a step for calculating the angular speed of a motor (43) displacing the wire dispensing device (40) according to the wire winding step and according to the dancer error, detected by a position sensor (35) that provides an analogical signal with respect to a zero position and to a tolerance value, in order to determine the presence of a possible valley error, or of a possible peak error. In this method, if during the spool winding, a valley error or a peak error is detected, the control device decides whether to slow down or to increase the speed of the wire dispensing device (40) with the aim of filling the depression or skipping the peak.

Method for implementing a correct winding of a wire on a spool (100). The method also comprises a step for calculating the angular speed of a motor (43) displacing the wire dispensing device (40) according to the wire winding step and according to the dancer error, detected by a position sensor (35) that provides an analogical signal with respect to a zero position and to a tolerance value, in order to determine the presence of a possible valley error, or of a possible peak error. In this method, if during the spool winding, a valley error or a peak error is detected, the control device decides whether to slow down or to increase the speed of the wire dispensing device (40) with the aim of filling the depression or skipping the peak.

A method is provided for operating a work station of a spinning or winding machine, wherein the work station includes a spinning device for producing a thread or a cop for delivering a thread, and a winding device for producing a bobbin on a tub. The winding device includes a swivel-mounted bobbin holder with a bobbin plate for receiving the tube and for catching the thread, a powered winding roller for rotating the tube or a bobbin, and a thread traversing device. A first suction nozzle is directed towards a circumference of a bobbin on the bobbin holder, and a second suction nozzle is arranged on the bobbin plate turned away from the bobbin and spaced from and directed counter to the first suction nozzle. To attaching a thread to an empty tube placed on the bobbin holder, the thread is arranged in the first and second suction nozzles so that the thread is tensed by negative pressure at least in the second suction nozzle. Subsequently, the tensed thread is captured between the first and second suction nozzles with a catching device in order to catch the thread for subsequent winding onto the empty tube.

A method is provided for operating a work station of a spinning or winding machine, wherein the work station includes a spinning device for producing a thread or a cop for delivering a thread, and a winding device for producing a bobbin on a tub. The winding device includes a swivel-mounted bobbin holder with a bobbin plate for receiving the tube and for catching the thread, a powered winding roller for rotating the tube or a bobbin, and a thread traversing device. A first suction nozzle is directed towards a circumference of a bobbin on the bobbin holder, and a second suction nozzle is arranged on the bobbin plate turned away from the bobbin and spaced from and directed counter to the first suction nozzle. To attaching a thread to an empty tube placed on the bobbin holder, the thread is arranged in the first and second suction nozzles so that the thread is tensed by negative pressure at least in the second suction nozzle. Subsequently, the tensed thread is captured between the first and second suction nozzles with a catching device in order to catch the thread for subsequent winding onto the empty tube.