Abstract: A machine producing cross-wound bobbins or cheeses has a yarn guide rod including axially coupled-together partial rods. Each partial rod includes a tubular abrasion-proof jacket, and a compact bar body being formed essentially of fibers embedded in a plastic matrix and being disposed in and joined to the tubular jacket in a shift-proof manner.

Abstract: An automatic bobbin winder having a plurality of transport loops which have partially common transport tracks for bobbins is improved by the present invention wherein an electronic memory device is associated with the respective textile bobbin, as a carrier of product information. A monitoring apparatus for monitoring the success of the preparation of returned textile bobbins is provided at a first preparation device and is connected with a writing device for writing in the successful preparation into the memory device. A communication device for reading the information written in as the acknowledgement of successful preparation is provided at a second preparation device for textile bobbins to be fed to the bobbin winder. The communication device is connected with a control apparatus for the start-up of the second preparation device in the absence of the information acknowledging the successful preparation at the first preparation device.

Abstract: A method and apparatus for finding and feeding a yarn end to be taken up in a textile winder in which bobbins in an upright disposition on individual tube support members are advanced sequentially to a winding position. A detector determines whether yarn is being unwound from the bobbin the winding position. If the detector detects that no yarn is being unwound, a yarn finding device locates with suction the yarn end on the bobbin in the ready position next succeeding the bobbin in the winding position. The finding of the yarn end is assisted by an air blowing device. A yarn feeding device feeds the yarn end to a yarn joiner to be joined to the trailing yarn end from a take-up yarn package, or places the yarn end on an empty take-up package tube. The yarn finding device employs an open end yarn end receiving portion, which applies suction to the upstanding end of the bobbin in the ready position.

Abstract: A pallet for transporting a textile cop or tube in a textile machine transport system accommodates tubes of differing inside diameters by providing at least three independently radially positionable support elements spaced circumferentially about a tube-support spindle and extending parallel to the longitudinal axis of the spindle and at least one resilient element acting radially outwardly on the support elements. The support elements are formed as fins that extend through slots in the spindle and are acted upon by torsion bars springs which spring-load adjacent fins in alternation. When textile yarn tubes are mounted on the spindles, the retaining force of the spindle increases steadily and attains its maximum once the tube is fully mounted.

Abstract: An open-end spinning apparatus includes a feed device for supplying sliver; a device downstream of the feed device for separating the sliver into individual fibers; a fiber guide channel downstream of the fiber separating device for pneumatically transferring the individual fibers; a spinning rotor downstream of the fiber guide channel for rotating in a given direction and receiving the individual fibers, the spinning rotor having a fiber slide wall with a given radius of curvature; and a lid closing the spinning rotor and having a centrally disposed yarn draw-off tube and a lid extension. The fiber guide channel has an end region extending in the lid extension and being curved in the given direction. The end region has an orifice region disposed in the lid extension. The orifice region is a curved channel segment being closed on all sides and terminating in a small orifice, and the orifice region has a radius of curvature being matched to the given radius of curvature.

Abstract: A pallet transport system for a textile machine producing wound yarn cheeses, in particular a winding machine, includes transverse transport tracks disposed between a cop supply track and an empty bobbin return track each transverse track having transport elements which are operated by reversible individual drives. The reversible individual drives can be controlled in a defined manner by the winding head computers of the respective winding heads (I, II, . . . , X, etc.) for improved transport of pallets within the transverse transport tracks.

Abstract: A method and apparatus for moving individual yarn ends into a yarn disposition at a yarn end joining device in a winding station of a bobbin winding machine includes moving individual in succession a yarn end from a delivery bobbin to the yarn end joining device, and a yarn end from a take-up bobbin to the yarn end joining device by a single yarn manipulator device.

Abstract: An open-end spinning device (1) of the type having a sliver opening device (30) and a pneumatically operated debris removal device (34) is disclosed. The opening cylinder housing (11) of the sliver opening device (30) has a debris discharge opening (15) and a cover element (9) mounted for restricted pivoting movement on a pivot shaft (10). A debris collecting element (16) is affixed to the cover element at a spacing (33) beneath the debris discharge opening and is connected to a suction device (8) which is a part of the spinning machine. The clear space (33) between the debris discharge opening (15) and the debris collecting element (16) assures that an auxiliary air flow (29), which is effective in the area of the debris discharge opening (15) to control the transport of fibers for the spinning process, is not affected by a suction air flow (28) applied at the debris collecting element (16).

Abstract: A cop individualizing apparatus operates a circular conveyor of the type having a helical cop guide track on a vibratory basis by providing two unbalanced electromotors whose speed is controllably varied via a frequency converter alternating between two frequency stages as a function of the instantaneous cop supply requirement of an associated cop dispensing device fed by the individualizing apparatus, in order to assure advancement of the cops along the transport track of the circular conveyor in precise relation to the particular instantaneous cop requirement.

Abstract: An open-end spinning machine embodied as a yarn piecing unit for automatically repairing yarn breaks during bobbin winding and for replacing finished bobbins with empty tubes, and an auxiliary yarn transport arrangement for supplying and removing an auxiliary yarn used for the piecing operation. The auxiliary yarn transport arrangement has a yarn supply tube that can be positioned among various operating positions: (a) a first position wherein the auxiliary yarn is transferred to a yarn locating nozzle of the piecing unit; (b) a second operating position wherein the piecing cycle is initiated by spinning an end of the auxiliary yarn with individual fibers fed into the spinning rotor of the spinning machine; and (c) a third operating position wherein the auxiliary yarn and its pieced end is severed from the trailing length of newly spun yarn from the spinning rotor and the new yarn is applied to an empty tube in the winding creel of the spinning machine.

Abstract: A transport container for textile packages, especially sliver, includes a vertically displaceable bottom element and a wall surrounding the bottom element and having a given length. The wall is formed of at least two joined-together wall parts being extended over all of the given length. The wall has guide gaps formed therein over large portions of the given length, for guidance of the bottom element. The transport container preferably has a rectangular outline.

Abstract: A yarn traversing drum for a textile winder having helical yarn traversing guide grooves forming a central intersection at the longitudinal centerline of the drum. One of the grooves has a smaller angle of inclination, between 10.degree. and 15.degree. and preferably approximately 14.degree. , than the angle of inclination, between 16.degree. and 20.degree. and preferably approximately 17.degree., of the other groove. The groove having the smaller angle of inclination is shallower and is formed with a wide yarn-capturing pocket adjacent the central intersection in the direction of yarn guiding. The groove having the greater angle of inclination at the central intersection has a beveled edge intersecting the yarn-capturing pocket of the other groove. The difference in angles of inclination results in the yarn reversing ends of the grooves adjacent opposite ends of the drum being offset circumferentially approximately 90.degree..

Abstract: A housing encloses a rotor, an opening roller, and a conduit communicating between the rotor and opening roller for the feeding of fiber from the opening roller to the rotor. The housing forms a trash removal chamber below the opening roller into which trash is discharged toward the bottom of the chamber during operation of the opening roller; the area of the opening roller where the trash is discharged is the trash outlet opening. The rotation of the opening roller creates an air flow draft in the direction of rotation. This air flow draft, taken in combination with suction applied in the rotor of the open-end spinning unit, creates an air flow suction draft from the chamber through the conduit in the direction of the opening roller rotation. An air flow is provided in the trash removal chamber in and from the chamber in a direction counter to the direction of the air flow draft rotating with the opening roller in the region of the trash outlet opening.

Abstract: An automatic textile machine includes a multiplicity of work stations each having its own work station electronics for controlling progress of work done at the work station. A method for detecting a position of a cop carrier carrying a textile cop in the vicinity of a work station includes evaluating mistuning of an oscillator circuit as information with a secondary coil disposed on the cop carrier; detecting the information transmitted by the cop carrier with a sensor device; carrying the information to the work station electronics; and processing the information with the work station electronics to initiate further operations. An apparatus for detecting the position of a cop carrier carrying a textile cop in the vicinity of one of the work stations includes a secondary coil disposed on the cop carrier, and a sensor disposed in the vicinity the winding station. The sensor is connected to the winding station electronics and detects information transmitted by the cop carrier.

Abstract: In a method and apparatus for supplying sliver cans to an automatic spinning machine and removing empty sliver cans from spinning stations of the automatic spinning machine, a can transport carriage to be driven between the automatic spinning machine and a can delivery station or empty can receiving station has can parking places for a can supply. An empty can below a spinning station is removed, placed on a free parking place, and replaced with a filled can from the can supply which is placed under the spinning station, all through the use of an automatic can changer. Two associated sliver cans are placed in succession forming two successive rows of front and rear sliver cans for supplying two adjacent spinning stations with sliver. Two free parking places are maintained for sliver cans on the can transport carriage.

Abstract: A method for forming a yarn reserve on an end surface of a cross-wound bobbin or cheese disposed on a bobbin tube includes predetermining a length of yarn for a yarn reserve. The yarn is unwound to the predetermined length from a cheese while temporarily storing the yarn in a reservoir. The presence of the yarn in the reservoir is detected with a sensor. The unwinding of the yarn is stopped and the rotational direction of the cheese is reversed to the given winding direction after attaining the predetermined length of the yarn. The yarn is then wound onto the one end of the bobbin tube while continuously holding the yarn taut with a restraining force of the reservoir. An apparatus for changing cheeses on a machine that produces cheeses and for forming a yarn reserve on an end surface of a cheese disposed on a bobbin tube includes a drive mechanism for unwinding a predetermined length of a yarn from a cheese. A reservoir receives and stores the yarn from the cheese.

Abstract: A yarn draw-off nozzle for an open-end spinning station of a rotor spinning machine includes a yarn feed region including a spiral having at least one turn with spirally extending surfaces disposed one above the other being rectilinear with respect to a yarn travel direction. The surfaces are each inclined at an angle relative to the surfaces located above and below them, defining spirally extending yarn deflection locations for supporting yarn to be drawn off.

Abstract: A method of handling the tube and cop supporting pallets in a textile winder during batch changing operations, by which, at the end of a batch, the pallets are maintained in the transport system of the winder and are conveyed from the tube return path to the cop supply path. First, the winding operation is stopped, a selected winding station at one end of the distribution segment is evacuated to facilitate clearing therethrough of the distribution segment and, subsequently, the other winding stations are successively evacuated to release the pallets held in their respective unwinding and backup positions. Downstream along the tube return path, the cops or tubes are removed from all approaching pallets, regardless of whether they still carry any yarn.

Abstract: In a rotor spinning machine, each spinning station's drawing-in roller is connected directly to its own individual drive supported by the cover of the spinning station housing, which provides a simplified and conveniently accessible alternative to the conventional worm gear driving of the drawing-in rollers of the machine's plural spinning stations from a common drive shaft.

Abstract: An apparatus for supplying the spinning machine with feed material includes a transport unit being movable along the spinning machine for advancing feed material produced by a production machine upstream of the textile machine to a region of the spinning stations. The transport unit has at least one pusher for transferring the feed material in the form of a transport-containerless bunch, to the feed stations.