D01H9/02

Method for operating a textile machine producing cross-wound packages, and a textile machine producing cross-wound packages

A method for operating a textile machine producing cross-wound packages has a multiplicity of autonomous work stations that each have a spinning apparatus and a winding apparatus and are equipped with a suction nozzle, connected to the vacuum network of the textile machine, for receiving a thread from the surface of a cross-wound package, and also a storage nozzle, likewise connected to the vacuum network, for temporarily storing excess thread length, and which is operated at least by one service unit that exchanges full cross-wound packages for empty tubes as required. The invention provides for the actuation of a cross-wound package/empty tube exchange by one of the service units to be prevented during the operations of restarting of the work stations, thereby ensuring that, during the restarting of the autonomous work stations, the maximum number of work stations always starts up again at the same time.

A DEVICE AND A METHOD FOR TRANSFERRING ADVANCING YARN DURING BOBBIN CHANGEOVER IN AN AUTOMATIC TURRET TYPE YARN WINDER
20170166414 · 2017-06-15 ·

The present invention is a part of a yarn transfer system used for transferring yarn from a full bobbin to an empty bobbin typically fitted on a winder frame. The invention broadly comprises a yarn traverse device used in transferring a continuously arriving yarn onto an empty bobbin for commencing of winding process during bobbin changeover process in automatic turret winder without any stoppage. This is achieved with the provision of an actuation device that facilitates axial movement of the yarn traverse device. In the present invention, during the bobbin changeover operation, the yarn traverse device is moved axially through the actuation device and allows the traverse guidewhile maintaining its normal traverse speed at all timesto move beyond the normal yarn winding zone such that the advancing yarn is within the reach of the yarn grasping device of the ready-to-be-wound empty bobbin. After the yarn transfer is completed, the traverse device moves back to the normal winding zone.

A DEVICE AND A METHOD FOR TRANSFERRING ADVANCING YARN DURING BOBBIN CHANGEOVER IN AN AUTOMATIC TURRET TYPE YARN WINDER
20170166414 · 2017-06-15 ·

The present invention is a part of a yarn transfer system used for transferring yarn from a full bobbin to an empty bobbin typically fitted on a winder frame. The invention broadly comprises a yarn traverse device used in transferring a continuously arriving yarn onto an empty bobbin for commencing of winding process during bobbin changeover process in automatic turret winder without any stoppage. This is achieved with the provision of an actuation device that facilitates axial movement of the yarn traverse device. In the present invention, during the bobbin changeover operation, the yarn traverse device is moved axially through the actuation device and allows the traverse guidewhile maintaining its normal traverse speed at all timesto move beyond the normal yarn winding zone such that the advancing yarn is within the reach of the yarn grasping device of the ready-to-be-wound empty bobbin. After the yarn transfer is completed, the traverse device moves back to the normal winding zone.

Method for Operating a Work Station and a Work Station
20170081142 · 2017-03-23 ·

With a method for operating a work station of a spinning machine and/or a winding machine, which has a spinning device (1) for producing a thread (2) or a head for delivering a thread (2) along with a winding device (6) for producing a package (7) on a sleeve (18), the winding device (6) features a swivel-mounted coil holder (8) with a coil plate (9) for receiving the sleeve (18) and for catching the thread (2), a powered winding roller (11) for rotating the sleeve (18) and/or the coil (7) along with a thread traversing device, and the work station is equipped with a first suction nozzle (5) that is directed towards the coil circumference and also with a second suction nozzle (12) that is arranged on the side of the coil plate (9) turned away from the package (7) and is directed essentially counter to the first suction nozzle (5) and is spaced apart from it. The thread (2) is arranged for attachment on an empty sleeve (18) in the two suction nozzles (5, 12), and is stretched between in particular by means of negative pressure in at least the second suction nozzle (12). Subsequently, the thread (2) stretched between the two suction nozzles (5, 12) is captured by a catching device, in order to catch the thread (2) and subsequently wind it onto the sleeve (18). With a corresponding work station of a spinning machine and/or a winding machine, the two suction nozzles (5, 12) are arranged at each other in such a manner that the thread (2) may be arranged for the attachment to an empty sleeve (18) in the two suction nozzles (5, 12) and may be stretched between the two suction nozzles (5, 12) by means of negative pressure in at least the second suction nozzle (12) in such a manner that the stretched thread (2) can be captured between the two suction nozzles (5, 12) by a catching device, in order to catch the thread (2) and subsequently wind it onto the sleeve (18).