An arrangement of an elongated element wound on a spool is presented. The elongated element has a leading end having a bent part and an unbent part. The bent part further having a beginning part and a trailing end. The leading end is positioned on the core of the spool and the bent part deviates at least for a part from a winding direction. The elongated element further forms subsequent windings in the winding direction on the core. At least one of the subsequent windings is wound over the beginning part of the bent part while an adhesive is provided to fix the trailing end of the bent part on the core simultaneously thereby securing elongated element on the spool.

An automated knotting method for a belt axis bundle includes a belt axis bundle which has an end segment of a thread that is freely extendable and movable. The method is executed by an automated knotting device. The method includes the following steps: forming a first loop with a first part of the end segment; creating a first bent segment with a second part of the end segment and threading the first bent segment through the first loop; twisting the first loop to form a twisted loop; forming a second bent segment with a third part of the end segment and threading the second bent segment through the twisted loop; controlling the second bent segment to rotate around the belt axis bundle and tightening the second bent segment, thereby creating a slip knot that wraps around and is tightened, and is located at an outside of the belt axis bundle.

An apparatus and method of robotically tying a knot that includes the steps of removing the package from the elevator tray to a knotting head apparatus at the knot-tying location where a knot is tied in a yarn tail of the package to secure the package tail from unraveling in subsequent package handling steps. Correct application of the knot to the yarn tail is either validated, or in the alternative, if the knot is not validated, the package is forwarded to a location for manual reworking to apply a correct knot to the yarn tail.

An elongated element (10) is transferred from a second (full) spool (13) to a first (empty) spool (14). A gripper (16) is positioned on the elongated element (10). The gripper (16) catches the elongated element (10) and the elongated element (10) is cut between the gripper (16) and the second spool (13) thereby leaving a leading end (19). Thereafter the gripper (16) is positioned with the leading end (19) at the level of the first empty spool (14). The gripper (16) is rotating around the axis of the first spool (14) to form first windings to fix the elongated element (10) on the first spool (14). The method allows full automation and assures the use of the wound element (10) until its final end.

An elongated element (10) is transferred from a second (full) spool (13) to a first (empty) spool (14). A gripper (16) is positioned on the elongated element (10). The gripper (16) catches the elongated element (10) and the elongated element (10) is cut between the gripper (16) and the second spool (13) thereby leaving a leading end (19). Thereafter the gripper (16) is positioned with the leading end (19) at the level of the first empty spool (14). The gripper (16) is rotating around the axis of the first spool (14) to form first windings to fix the elongated element (10) on the first spool (14). The method allows full automation and assures the use of the wound element (10) until its final end.

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.

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.

The invention relates to a textile machine for producing roving (1), comprising at least one consolidating means, by which a roving (1) having a protective twist can be produced from a fiber bundle (3) that is fed to the consolidating means, and comprising a winding device (5), arranged downstream of the consolidating means in a transport direction (T) of the roving (1), for winding the roving (1) produced by the consolidating means onto a tube (7) which can be driven by a tube drive (6). The textile machine is characterized in that it has an arrangement by which the roving (1) leaving the consolidating means during a start of roving production can be brought into contact with the tube (7), wherein said arrangement comprises a movably mounted suction unit (8) with a suction opening (9), by means of which the roving (1) can be sucked up during ongoing roving production, wherein said arrangement comprises means by which the roving (1) running between the consolidating means and the suction opening (9) can be brought into contact with the tube (7) during ongoing roving production, and in that said arrangement comprises means by which the roving (1), during ongoing roving production, can be cut such that the section (19) of the roving (1) that is grasped by the suction unit (8) can be conveyed away by the suction unit (8) and the section of the roving (1) running between the consolidating means and the tube (7) can be wound onto the tube (7). A method for starting roving production on such a textile machine is also proposed.

The present disclosure is directed to a reusable yarn carrier tube for winding yarns thereon at high speeds. The yarn carrier tube may include a hollow cylindrical circumferential wall having an exterior surface and an interior surface which define a thickness of the circumferential wall and having a first end and a second end. The yarn carrier tube may further include a pick-up groove formed through the thickness of and extending in the azimuthal direction of the circumferential wall, having a first sidewall and a second sidewall defined by the thickness of the circumferential wall, and having a leading end and a trailing end. The structural features may include a barb directed toward the leading end of the pick-up groove, defining an inner slot and an outer slot. The structural features may further include within the inner slot, a first plurality of teeth and a second plurality of teeth.

The present disclosure is directed to a reusable yarn carrier tube for winding yarns thereon at high speeds. The yarn carrier tube may include a hollow cylindrical circumferential wall having an exterior surface and an interior surface which define a thickness of the circumferential wall and having a first end and a second end. The yarn carrier tube may further include a pick-up groove formed through the thickness of and extending in the azimuthal direction of the circumferential wall, having a first sidewall and a second sidewall defined by the thickness of the circumferential wall, and having a leading end and a trailing end. The structural features may include a barb directed toward the leading end of the pick-up groove, defining an inner slot and an outer slot. The structural features may further include within the inner slot, a first plurality of teeth and a second plurality of teeth.