Abstract:
In the case of an arrangement for the intermediate storage of a yarn, a drivable storage roller is provided which helically receives the yarn and to which a yarn transfer device is assigned which has a yarn guiding element deflecting the arriving yarn to the storage roller and which can be moved axially with respect to the storage roller.
Abstract:
In the case of a spinning or twisting spindle, it is provided that the spindle shaft is radially fixedly disposed in the spindle bearing housing, and that centering devices and vibration damping devices are integrated into a holding arrangement for the spindle bearing housing.
Abstract:
A spinning machine is disclosed which includes a plurality of spinning units which each spin two prestrengthened yarn components and guide them together to a double yarn. A movable servicing device is provided which can be applied to the individual spinning units and which, for feeding the double yarn to a spool tube inserted into a spinning unit wind-up device and driven to perform rotations, has a device that can be applied to the spool tube and is equipped with devices for the deflecting of a section of the double yarn into a direction extending approximately in parallel to the axis of the spool tube and for the transferring of the deflected section of the double yarn into the moving range of a driving device rotating together with the spool tube.
Abstract:
A spinning machine having several spinning points is disclosed having at least one drafting unit assigned to each spinning point. Each drafting unit has several top rollers and several drivable bottom rollers. At least the bottom rollers which are assigned to the feeding side for the fiber material are driven by a common drive shaft extending in longitudinal direction of the machine by means of transmission devices which contain a coupling. It is provided that at least the bottom rollers assigned to the feeding side are arranged adjustably for the adjusting of the distance with respect to the respective rollers which follow while maintaining a driving connection between the common drive shaft and the respective ones of said bottom rollers.
Abstract:
In the case of a spinning machine having a plurality of spinning units which are arranged next to one another and to each of which a sliver is fed from a container, a movable servicing device is provided which contains devices for the picking-up of the starting portion of a new sliver from a readied container and for the connecting of this sliver with the end portion of the old sliver entering into the respective spinning unit.
Abstract:
In an arrangement for the intermediate storing of a yarn at a spinning machine between a delivery device and a device which establishes a yarn connection during a piecing operation, a suction pipe is provided which stores the continuously supplied yarn in the form of a loop. The suction pipe is bent or curved in such a manner that it has supports for the yarn strands of the loop, these supports being separated from one another in axial direction with respect to the bending axis.
Abstract:
In a process and an arrangement for the piecing of a double yarn after a yarn breakage at a spinning unit of a spinning machine, which forms a double yarn from two prestrengthened yarns, which is wound onto a spool package, it is provided that, for a piecing, a newly spun double yarn is connected by means of splicing with an end of the double yarn withdrawn from the spool package, in which case, before the splicing, both double yarns are prestrengthened by being provided with a twist.
Abstract:
An open-end rotor spinning apparatus is provided which includes a spinning rotor element for spinning yarn. A yarn receiving surface is included with the spinning rotor element and is arranged around a spinning rotor element substantially circumferentially transverse to the axis through the spinning rotor element. A housing is provided for housing the spinning rotor element, and the housing element is connected to a vacuum source. A fiber feeding duct feeds fibers to the spinning rotor element. The fiber feeding duct includes a mouth area leading into the spinning rotor element and adjacent feeding duct. The mouth is oval shaped and has a cross-sectional width in the circumferential direction of the yarn receiving surface which is greater than the cross-sectional width in the axial direction of the spinning rotor element.
Abstract:
In an arrangement for open-end rotor spinning, it is provided that a fiber feeding duct, starting from its end located opposite a fiber sliding surface of a spinning rotor, is opened up by means of a lateral slot so that the cross-section that is essential for the taken-in air quantity is placed back in an area with a larger diameter, while, in addition, the end area of the fiber feeding duct is designed as a narrow groove.
Abstract:
In the case of a process for piecing at a spinning unit that is used for producing feed spools consisting of multiple-wound, prestrengthened slivers for a subsequent twisting operation or the like, it is provided that first the supply of the drafting roller device is started, after which the slivers are sucked into the pneumatic false-twisting devices, are guided through them and are then jointly gripped at the outlet of the false-twisting devices, are placed in a withdrawal device and are then fed to a winding-up device.