Abstract: An improved method for operating a textile machine having plural workstations comprising exchangeable components, each having a readable and writable transponder arranged on or integrated in the exchangeable components. During the lifecycle of the exchangeable components at least the operating data which influence the wearing of the exchangeable components are automatically stored on the respective transponder. Textile machines for carrying out the method are characterised by arranging in the region of each workstation at least one transceiver for writing and reading the transponders attached to or integrated in the exchangeable components.

Abstract: A method which improves the correspondence between the produced fancy yarn and the predetermined configuration of said fancy yarn. The fancy yarn is guided through a sensor device in a spinning device after it is formed and the diameter of the fancy yarn is continuously measured by the sensor device. The fancy configuration of the produced yarn is determined on the basis of the measured values of the diameter and is compared with the predetermined fancy configuration. The comparison is carried out until sufficient correspondence between the predetermined fancy configuration and the fancy configuration of the optimized, produced yarn is achieved.

Abstract: An improved method for operating a textile machine having plural workstations comprising exchangeable components, each having a readable and writable transponder arranged on or integrated in the exchangeable components. During the lifecycle of the exchangeable components at least the operating data which influence the wearing of the exchangeable components are automatically stored on the respective transponder. Textile machines for carrying out the method are characterised by arranging in the region of each workstation at least one transceiver for writing and reading the transponders attached to or integrated in the exchangeable components.

Abstract: A method which improves the correspondence between the produced fancy yarn and the predetermined configuration of said fancy yarn. The fancy yarn is guided through a sensor device in a spinning device after it is formed and the diameter of the fancy yarn is continuously measured by the sensor device. The fancy configuration of the produced yarn is determined on the basis of the measured values of the diameter and is compared with the predetermined fancy configuration. The comparison is carried out until sufficient correspondence between the predetermined fancy configuration and the fancy configuration of the optimized, produced yarn is achieved.

Abstract: A yarn cleaner for cleaning defects from a yarn, by means of a head for measuring at least one yarn parameter for comparison against cleaning limits determined for the yarn parameter. If the cleaning limits are exceeded, a defect in the yarn is indicated whereby intolerable defects may be cut out from the yarn. The yarn cleaner is set up for cleaning an effect yarn, also called a novelty or fancy yarn, formed from an alternating thinner webs and thickened effects in the yarn. At least one value of the yarn parameter is predetermined for webs and for effects and the cleaning limits of the yarn cleaner are adjusted such that they lie outside the predetermined value of the web parameter and outside the predetermined value of the effect parameter.

Abstract: An open end rotor spinning machine with plural workstations each having a yarn spinning device, a yarn take-off mechanism loaded by a reversibly driven single drive and a winding device for producing a cross-wound bobbin. The spinning device has a spinning rotor, a fiber band opening roller and a single motor-driven fiber band feed cylinder. Each workstation (2) has a mechanism (10) for cutting to length a yarn (30) retrieved from the bobbin (22), a yarn storage mechanism (37) and a drive mechanism (7) for lifting the bobbin (22) from its drive roller (23). During the piecing process, a manually activatable control mechanism (9) activates the drive (19) of the yarn take-off mechanism (18), the drive (15) of the fiber band draw-in cylinder (14) and the drive mechanism (7) to lift the bobbin (22) according to a predetermined piecing program.

Abstract: A fiber guide channel for pneumatic transport of individual fibers combed from a sliver by an opening cylinder of an open end spinning device for delivery to a spinning rotor. The fiber guide channel is arranged in a cover element for the rotor housing and the input side of the fiber guide channel is matched in its width to the mountings of the opening cylinder. The inlet and the outlet openings of the fiber guide channel have a slot-like shape and the maximum extension (B) of the inlet opening extends parallel to the axis of the opening cylinder. The maximum extension (L) of the outlet opening of the fiber guide channel is rotated about an imaginary center line of the fiber guide channel by 90°±15° relative to the maximum extension (B) of the inlet opening. The fiber guide channel has a substantially cylindrical zone Z, between the inlet and outlet openings, with the cross-section of the fiber guide channel constantly decreasing from the inlet opening to the zone Z.

Abstract: A fiber guide channel for pneumatic transport of individual fibers combed from a sliver by an opening cylinder of an open end spinning device for delivery to a spinning rotor. The fiber guide channel is arranged in a cover element for the rotor housing and the input side of the fiber guide channel is matched in its width to the mountings of the opening cylinder. The inlet and the outlet openings of the fiber guide channel have a slot-like shape and the maximum extension (B) of the inlet opening extends parallel to the axis of the opening cylinder. The maximum extension (L) of the outlet opening of the fiber guide channel is rotated about an imaginary center line of the fiber guide channel by 90°±15° relative to the maximum extension (B) of the inlet opening. The fiber guide channel has a substantially cylindrical zone Z, between the inlet and outlet openings, with the cross-section of the fiber guide channel constantly decreasing from the inlet opening to the zone Z.

Abstract: The aim of the invention is to create a method that allows a previously produced fancy yarn to be reproduced. Said aim is achieved by a method in which a model fancy yarn is first guided through a sensor device for measuring purposes, the diameter of the model fancy yarn is continuously measured using the sensor device, the measured diameter values are evaluated, and the formation of the effect of the model fancy yarn is determined therefrom. Spinning settings are generated from the data representing the formation of the effect, and said spinning settings, which are based on the set of data, are used for producing a fancy yarn.

Abstract: The yarn cleaner (5) is designed for cleaning out defects from an effect yarn (1), which is formed from an alternating stringing together of webs and of effects comprised of given thickenings. The yarn cleaner has a measuring head (6) in which at least one yarn parameter is measured, whereby cleaning limits are determined for the yarn parameter, and the presence of a defect in the yarn is signaled when these limits are surpassed. The measured values of the yarn parameter are compared with the cleaning limits and intolerable defects are cut out from the yarn. The cleaning limits are each dependent on whether the values are measured in the web or in the effect. The yarn cleaner (5) is suited for keeping the desired diameter quality of effect yarn on winding and spinning winding machines.

Abstract: An open end rotor spinning machine with plural workstations each having a spinning device for producing a yarn, a yarn take-off mechanism and a winding device for producing a cross-wound bobbin. The spinning device has a spinning rotor circulating in a spinning housing at high speed, a fiber band opening roller and a single motor-driven fiber band feed cylinder. The yarn take-off mechanism can be loaded by a single drive. Each workstation (2) has a mechanism (10) for defined cutting to length of a yarn (30) retrieved from the cross-wound bobbin (22), a storage mechanism (37) for receiving a specific yarn quantity and a drive mechanism (7) for lifting the cross-wound bobbin (22) from the bobbin drive roller (23). The drive (19) of the yarn take-off mechanism (18) can be reversibly driven.

Abstract: An open-end rotor spinning machine having a plurality of work stations, wherein each work station comprises an open-end spinning device for manufacturing a yarn, a winding device with a creel, a yarn traversing device for producing a cheese, a pivotably supported, vacuum-chargeable suction nozzle, an individual drive for pivoting the suction nozzle between a yarn take-up position in the area of the winding device and a yarn transfer position in the area of a spinning piecing member, and a device for preparing a yarn end required for restarting spinning. Each work station comprises a winding device with a drive drum driven by a reversible individual drive for driving a cheese and with a yarn traversing device driven by an individual motor for defined placement of the yarn running up onto the cheese, a yarn withdrawal device, and a work-station computer for controlling the individual drives and individual motors.

Abstract: A spinning rotor adapted to be seated in a spinning box of an open-end spinning machine and having an identification mark (9), preferably embodied as alpha-numeric characters, formed at a location on the rotor cup (8) at which the information content of the identification mark (9) can be visually determined while within the spinning box after opening and stoppage of the rotor but without removal from the spinning box, thereby permitting a user-friendly, time-saving and dependable visual check of the spinning rotor type.

Abstract: A spinning rotor for use at high speeds in open-end spinning machines has a rotor cup having an annular wall portion defining a rotor opening, a bottom wall portion merging with the annular wall portion, and a mounting hub extending exteriorly from the bottom wall portion. A rotor shaft is affixed to the mounting hub coaxially with the rotor cup. The merger of the bottom and annular wall portions of the rotor cup defines a maximum exterior diameter of the rotor and an interior rotor groove. The annular wall portion, the bottom wall portion and the mounting hub are of different cross-sectional thicknesses with the cross-sectional thickness of the bottom wall portion increasing from the rotor groove to the mounting hub. The wall thickness is less than 1.

Abstract: In open-end rotor spinning devices, an axial engagement element, typically a ceramic pin, is inserted as a wear protector in a receptacle at the free end of the rotor shaft which is supported on a ball of an axial bearing. In order to receive the air displaced during the insertion of the axial engagement element, the free end of the shaft is formed with at least one radial bore connecting the receptacle with the ambient environment through which the air displaced during the insertion can escape.

Abstract: In open-end rotor spinning devices, an axial engagement element, typically a ceramic pin, is inserted as a wear protector in a receptacle at the free end of the rotor shaft which is supported on a ball of an axial bearing. In order to receive the air displaced during the insertion of the axial engagement element, the axial engagement element is formed with a bore in the end thereof facing inwardly within the receptacle.

Abstract: An open-end spinning device with a forwardly open suctioned rotor housing, a high speed spinning rotor rotatably disposed in the rotor housing, and a fiber conduit plate for closing the forward opening in the rotor housing. The fiber conduit plate has an interchangeably disposed conduit plate adapter defining an opening from a fiber guide conduit into the rotor and a yarn take-off nozzle. The conduit plate adapter can be releasably fixed securely in place in a receptacle area of the fiber conduit plate by means of a central fastening arrangement comprising a threaded connection and a magnetic coupling between the fiber conduit plate and the conduit plate adapter.

Abstract: An apparatus removes textile articles such as empty tubes or full yarn packages from the individual posts on which such articles are supported simultaneous with advancing movement of the posts. The textile articles are removed in a direction generally parallel to the axis of the posts so that during removal detrimental binding of the textile article relative to the post does not occur. According to one aspect of the invention, at least one pair of endless belts are mounted in spaced, parallel relation to one another to form an elongate opening therebetween. The elongate opening is aligned with the travel path of the textile articles being advanced on the posts so that the textile articles automatically enter the elongate opening and are engaged by the endless belts without the need to stop or otherwise control the advancing movement of the textile articles.

Abstract: A textile machine apparatus for handling tubes having remaining yarn thereon includes a branch path for supporting tube support members, which individually support tubes thereon, for travel to and from the discharge assembly of a textile winding machine. The tube handling apparatus also includes a sensor disposed along the discharge transport path of the tube support members from the winding stations of the textile winding machine for discriminating among tubes having no yarn thereon and tubes having remaining yarn thereon. A guide member is operatively connected to the discriminating sensor for guiding the tube support members supporting tubes having remaining yarn thereon onto the branch path for transport therealong to a tube stripping device, which strips the tubes of the remaining yarn. The stripped tubes are then returned to the discharge transport path at a location upstream of the discriminating sensor.

Abstract: A spinning rotor for use at high speeds in open-end spinning machines has a rotor cup having an annular wall portion defining a rotor opening, a bottom wall portion merging with the annular wall portion, and a mounting hub extending exteriorly from the bottom wall portion. A rotor shaft is affixed to the mounting hub coaxially with the rotor cup. The merger of the bottom and annular wall portions of the rotor cup defines a maximum exterior diameter of the rotor and an interior rotor groove. The annular wall portion, the bottom wall portion and the mounting hub are of different cross-sectional thicknesses with the cross-sectional thickness of the bottom wall portion increasing from the rotor groove to the mounting hub. The wall thickness is less than 1.