Abstract: An apparatus and method for producing a core spun yarn by means of a fluid delivery device is provided. The apparatus substantially comprises a fiber and thread guide means using a fiber guide conduit with a fiber guide surface for guiding fibers and a thread guide for guiding at least one continuous yarn into an inlet orifice of a yarn guide conduit and a fluid delivery device for producing a swirl flow about the inlet orifice of the yarn guide conduit so that the at least one continuous yarn can be spun over by the fibers. The thread guide is either a groove which is associated with the fiber guide surface, a bore disposed below the fiber guide surface, an individual tube-like element, or a tube-like element that is combined with a groove or a bore. The thread guide is introduced in a fiber and thread guide means, with the axis of the groove, the bore or the tube-like element being in alignment with the axis of the yarn guide conduit.

Abstract: The invention relates to air spinning frames for the production of spun thread (2) from a staple fibre strand (3), comprising a drafting unit (4) followed by a spinning box (5) with a twisting chamber (9) and a spindle (8). The invention was based on the task to provide a design by means of which the distance between the drafting unit (4) and the spindle (8) can be newly adjusted in a fast and simple manner. This task has been solved according to the invention by attaching an adjusting device (10) to adjust the distance (I) between the drafting unit and the spindle (8).

Abstract: A drive belt assembly for a revolving flat card includes a flexible belt. At least a pair of connecting elements are integrally formed with the belt. The connecting elements include a cross-beam with an inclined surface. A locking element is disposed between the pair of connecting elements in order to prevent the connecting elements from approaching one another. The locking element is removable from the pair of connecting elements to allow for the approaching of the connecting elements to one another.

Abstract: For an air spinning frame, reluctance motors are provided for each spinning place to drive the pairs of rollers of the drafting unit, the drawing-off means, and the friction roller. Thereby, for the run-up of a spinning place, e.g., after a thread break, a specific frequency converter is provided. After reaching the stationary operating speed, a switch over onto a further frequency converter takes place, at which time, the corresponding reluctance motors of the other spinning places are driven in parallel. By the use of reluctance motors it can be done without a complex speed regulation means. A specific dimensioning of the reluctance motors permits a very fast run-up and a particularly good efficiency during the stationary operation.

Abstract: An open-end spinning rotor has its thinnest wall thickness in the area of its fiber collecting groove. The lateral wall of the open-end spinning rotor comprises an outer contour, which—in axial section—is at least partly convex-shaped.

Abstract: A combing ring for an opening roller of an open-end spinning arrangement is provided with at least two surface coatings, one applied on top of the other. Of these two coatings, the bottom one is a wear-resistant, harder PVD coating, while the upper one is a less hard, but fiber-friendly coating having a maximum thickness of 5 &mgr;m, preferably a chemical nickel coating. The bottom PVD coating comprises in a known way so-called droplets, whereby the thickness of the top coating is at least equal to the height of the droplets.

Abstract: The invention relates to a spinning device for the production of a spun thread from a fiber bundle, including a nozzle part with an upper nozzle part and a lower nozzle part. Likewise, a spindle is included with an upper part and a lower part. In order to be able to carry out cleaning work between an edge of a fiber guide surface opposite an intake mouth of the spindle, or, at the start of the spinning, in order to be able to guide a yarn end through a yarn guide channel of the spindle onto the fiber guide surface, the upper nozzle part is capable of being raised or can be pivoted. In this situation, the lower nozzle part may remain stationary.

Abstract: The invention concerns a start of spinning or the method of piecing for spinning positions of air spinning frames, which, during a spinning process, produce a thread (11) from a longitudinal fibre structure (10′) and which, for this, comprise a finess influencing unit (28) with parts (30, 29) drivable at the inlet side and part (32) drivable at the outlet side with clamping points (11), a means for the air twist generation (3) and a means for the thread take-off, whereby, after an interruption of the spinning process, the resumption of the production of the thread comprises the following steps.

Abstract: In a spinning position of a spinning machine a longitudinal fibre array first is refined in a drafting process, and the refined fibre array then is subject to a twist imparting process, and is taken off the twist-imparting zone as a yarn. In case of an interruption of the spinning process, the intake into the refinement zone is stopped before the delivery from the refining zone is stopped in such a manner that the longitudinal fibre array is severed between the intake and the delivery zones forming a free front end zone. The free end of the yarn, generated by the interruption of the spinning process, is treated in such a manner that a yarn end zone is tapered and is positioned upstream from the twist imparting zone. When the spinning process is resumed, the movements of the yarn end zone and of the fibre array front end zone for imparting twist are coordinated in time sequence in such a manner that these two zones overlap as they are subject to the twist imparting process.

Abstract: The present invention relates to a method or device for removing dust, waste and short fibres in the removal zone of a carder or carding machine, having a stripper roller or doffer, a doffing cylinder, an upper and a lower press roller, and a transverse conveyor belt. A solution according to the present invention provides at least one of the following means: means, for example a compressed air device, for generating a preset air flow in the region between the stripper roller, the doffing cylinders and the press rollers; an exhaust device for the area of the lower stripper and the lower press roller; an exhaust device for the area above the upper mote knife.

Abstract: The application relates to a device for air spinning, i.e. for the manufacture of a spun thread (10) from a staple sliver (1, 24). The device contains in particular a fibre guide element (3, 22), a fibre conveying channel (4), and an eddy chamber housing (15) attached to the fibre guide element (3, 22). The eddy chamber housing (15) contains in its turn a spindle (7) arranged at a distance interval from the fibre guide element (3, 22), with a yarn guide channel (8). In addition, the eddy chamber housing (15) contains a fluid device with at least one jet nozzle (13.1) for the production of an eddy current (11) about the inlet aperture mouth (9) of the yarn guide channel.

Abstract: In a texturing system with a texturing nozzle and a first drum (22) connected thereto and a further drum (23), a thread is guided on the outlet side of a texturing nozzle (10) at the circumference of a drum (22) in the form of a strip (1′) by friction and at least in part in positive manner, so that the longitudinal speed of the strip (1) at the circumference of the drum (22) accords with the circumferential speed of the drum in the area of the guide (220), whereby, by means of a pressure difference in an air guidance system, the effect is achieved of pressing the strip (1′) onto the surface of the drum (22), and whereby the thread is guided in relation to its conveying speed and packing density, by positive and friction guidance under the imposition of air, as far as an outlet point on the first drum, and is transferred onto a second drum (23), on which the strip is cooled, extended if appropriate, and passed on to further guide or conveying rollers (22′) respectively.

Abstract: A pneumatic spinning apparatus (1) for producing a yarn or thread spun from fibres includes a nozzle block with a hollow room in which a spindle is arranged. At least one jet nozzle serves for generating a rotating air stream in the hollow room. Opposite the spindle a fibre guide member is arranged, which in the yarn forming process serves as a false core. A fibre guide duct within the nozzle block merges into the fibre guide. The fibre guide duct presents a variable cross-section along its length.

Abstract: A spinning machine is provided. The spinning machine includes a drafting arrangement for drafting a fibre structure. The spinning machine also includes a spinning device for spinning the fibre structure, the spinning device is located downstream from the drafting arrangement. Also, a condensing device is located between the drafting arrangement and the spinning device. The condensing device has a stationary suction element in fluid communication with a condensing element. The condensing device and the suction element are configured to allow for the removal of air from the condensing element. The suction element has a housing and an insert. The insert is displaceable with respect to the housing along a guide. The insert is arrestable with respect to the housing.

Abstract: Flat end head with a mounting section for the flat rod and at least one sliding surface for progressive movement on a sliding guide of a card said sliding guide consisting of a polymer material.

Abstract: An exchangeable lubricant cartridge for a step bearing of an open-end spinning rotor is disclosed. The lubricant cartridge comprises a chamber containing lubricating grease in which a step bearing ball is arranged. A bore hole is provided for a rotor shaft at a front housing wall of the lubricant cartridge, while at a rear housing wall an entry bore hole is provided for a thrust bearing. For the purpose of facilitating assembly, the housing is divided into a first housing section comprising the front housing wall and a second housing section comprising the rear housing wall.

Abstract: The invention relates to a device for the production of a spun thread (10) from a staple fibre strand (1) by means of air spin method. The fibre guiding element (3c) according to the invention comprises a fibre conveying channel (4) with a fibre guiding surface, whereby the fibre guiding surface ends at a fibre presenting edge (6) and leads the fibres of the staple fibre strand (20) in the form of an essentially flat arrangement lying next to each other. The fibre-guiding surface (18, 18.1, 18.2, 18,3) is configured in such a manner that it comprises a diverting point (17) which causes a deviation of the staple fibre strand (20), whereby the deviation is being provided in such a manner that the free fibre ends (19) of the fibres within the staple fibre strand (20) protrude from said staple fibre strand.

Abstract: The present invention relates to the application of fiber length measurement in the blowroom or carding room of a spinning mill. A method and an apparatus in a textile processing machine are described in which before and/or after a working element of the textile processing machine the nep count and/or the fiber length (staple) is determined, with an open-loop/closed-loop control unit being provided which receives the values for the fiber length and/or the nep count as input and determines therefrom the optimized machine setting data and outputs the same to at least one actuator of a working element which influences the nep count and/or the staple of the textile processing machine.

Abstract: A support for a combing means for an opening roller comprises an opening roller combing means, which is designed as a saw-toothed helix having multiple thread grooves. The number of threads amounts to approximately between one twentieth and one thirthieth (expressed in millimetres) of the outer diameter of the opening means. In addition, the angle of inclination (expressed in degrees) of the helix amounts to between 0.5 and 0.7 times the number of threads. The angle of inclination of the helix should not exceed 2.5°.

Abstract: The present invention concerns a spinning method and a spinning apparatus for producing a yarn (13) from fibres (7). In a spinning chamber (2) the fibres (7) are subject to a rotating air vortex (15) and in this process are twisted into a yarn (13) in an inlet opening of a spindle duct (11) of a spindle (12). The fibres to be processed (7) are guided via at least one fibre feed duct (20, 21) into the spinning chamber (2). The present invention proposes that fibres (17), which are not caught into the yarn formation process are eliminated via an exhaust air duct (16), that these eliminated fibres (17) are regenerated, and that the regenerated fibres (17) are fed back into the yarn forming process.