摘要:
A method and device for producing cross-wound textile bobbins using a creel for holding a cross-wound bobbin, a bobbin drive roller operated by a single drive to rotate the bobbin and a thread traversing mechanism driven by a single motor. At a predetermined bobbin diameter or a predetermined thread length, a thread guide of the traversing mechanism is positioned to adjust a thread end reserve for an adjustable time span. While the thread end reserve (10) is being produced, a thread storage suction nozzle (60) particular to the winding head acts on the thread (7) running onto the bobbin (8) to intermediately store excess thread length being produced during the winding of the thread end reserve (10) and to insure a minimum thread tension to reliably fix the thread end reserve (10) on the bobbin body or the cross-wound bobbin tube.
摘要:
The object of the present invention is to allow the reliable identification of the quality level of the winding package based on the yarn quality such as the yarn winding tension or the twisting density when manufacturing a winding package. According to the draw texturing machine for winding while traversing the false-twist textured yarn Y unwound from the supply yarn package and forming a winding package 7 of taper end form, a tension sensor 20 for detecting the tension of the yarn Y to be processed into a winding package 7, and a quality level judging means 30 for judging the quality level of the winding package 7 based on the detected tension information, are provided. Moreover, a winding controller 28 is provided with a winding terminating position setting means 28b for coordinating the quality level judging means 32 and the traverse device T so that the straight winding position (b1)null(b3) at the finishing of the winding process of the winding package 7 is to be determined in the differing axis direction based on the judged result of the quality level judging means 32.
摘要:
In open-end spinning and in coordination with predetermined operating phases, a yarn suction pipe 3 by means of which a yarn F extending from a bobbin 121 is to be received temporarily is brought successively into different operating planes Ea, Eb in which the yarn suction pipe 3 is imparted a defined operational movement in function of the operating planes Ea, Eb occupied and in coordination with the current operating phase. The operating positions 3b, 3c of the yarn suction pipe 3 that can be moved into at least two operating planes Ea, Eb are defined in such manner that when the yarn suction pipe 3 is in its operating position 3b, 3c in a first operating plane Ea, a yarn F extending from the bobbin 121 pressing on winding roller 120 to the yarn suction pipe 3 crosses the traversing range of the yarn traversing guide 126 but is outside the traversing range of this yarn traversing guide 126 when the yarn suction pipe 3 assumes its operating position 3A in an additional operating plane Eb. The yarn suction pipe 3 is mounted on a swivel pin that is in turn mounted on an additional swivel pin.
摘要:
A method and apparatus for producing a yarn reserve, in particular on a cross wound package carried on a former which has an end which projects beyond the package. A groove is provided in the end portion for securing the yarn as the yarn is wrapped therearound before being brought back over the surface of the package for producing a yarn end reserve.
摘要:
A textile thread winding operation, includes a method of forming a thread reserve from the thread end of a textile coil wound on a hollow coil core which comprises removing a textile coil from a winding device and slowly rotating the textile coil in direction opposite to the direction in which a thread is wound thereon, pneumatically seizing a thread end of the textile coil with a suction gripper and sucking the thread end into the suction gripper, displacing the suction gripper so that the suction opening thereof is located at the end of the coil core extending out of the textile coil, and releasing the thread end at the coil core.
摘要:
The object of the present invention is to allow the reliable identification of the quality level of the winding package based on the yarn quality such as the yarn winding tension or the twisting density when manufacturing a winding package. According to the draw texturing machine for winding while traversing the false-twist textured yarn Y unwound from the supply yarn package and forming a winding package 7 of taper end form, a tension sensor 20 for detecting the tension of the yarn Y to be processed into a winding package 7, and a quality level judging means 30 for judging the quality level of the winding package 7 based on the detected tension information, are provided. Moreover, a winding controller 28 is provided with a winding terminating position setting means 28b for coordinating the quality level judging means 32 and the traverse device T so that the straight winding position (b1)˜(b3) at the finishing of the winding process of the winding package 7 is to be determined in the differing axis direction based on the judged result of the quality level judging means 32.
摘要:
To reliably carry out the yarn-catching operation and formation of bunch-winding and tail-winding, while using a bobbin having no yarn-catching groove thereon, and obtain a package with a shorter yarn end extended from the bunch-winding part, upstream of a pressure roller 7, a yarn-holding guide 24 is provided for guiding a running yarn to a bunch-winding position; downstream of an empty bobbin 70, a yarn-searching guide 29 is provided for guiding the yarn to the yarn-catching part or a threading guide 33 and a yarn-winding guide 37 movable toward a concave space (A) formed by the pressure roller 7 and the empty bobbin 70 carried on a spindle 4 to guide the yarn 80 running to a full bobbin 70' or others to a yarn-catching part B formed between the abutting end walls of adjacent empty bobbins 70 carried on the spindle 4.
摘要:
For a changing of spool tubes and packages at an individual spinning unit of a spinning machine having a plurality of such spinning units, it is provided that, when a given filling ratio is reached, the yarn which continues to move to the spool package is disengaged from a cross-winding yarn guide and is subsequently, in the form of final windings, wound onto an area limited in longitudinal direction of the spool package onto the spool package.
摘要:
A winding apparatus is disclosed which includes a rotatable revolver having a pair of spindles mounted thereon, with the spindles being adapted to coaxially mount one or more bobbin tubes. Upon rotation of the revolver, the spindles are moved between a winding position and a doffing position, and a traversing mechanism is provided for traversing an advancing yarn and so as to form a cross wound package on the tubes at the winding position. Also, a contact roll is mounted between the traversing mechanism and the winding position so as to be adapted to rest upon the surface of the package being formed. The contact roll is movable a limited distance radially away from the package being wound, and its position is sensed. To accommodate the build of the package, the revolver is positively rotated in response to the sensed position of the contact roll and so that the distance between the axes of the contact roll and the operating spindle is increased and the pressure between the contact roll and the package may be maintained within a small range of variation.
摘要:
Service trolley for open-end spinning machines equipped for the depositing of the final thread reserve on the exhausted bobbin comprising a thread-guide with a horizontal worm-screw, equipped with a cantilever supporting arm which allows its positioning at different levels and also its axial movement, activated in controlled clockwise/anticlockwise rotation driven by a motor, thus determining both the level and axial coordinate to which the thread is brought and wound onto the tube.