Abstract: The invention relates to a textile machine for producing roving (1), comprising at least one consolidating means, by which a roving (1) having a protective twist can be produced from a fiber bundle (3) that is fed to the consolidating means, and comprising a winding device (5), arranged downstream of the consolidating means in a transport direction (T) of the roving (1), for winding the roving (1) produced by the consolidating means onto a tube (7) which can be driven by a tube drive (6).

Abstract: The invention relates to a method for operating a textile machine that serves for producing roving (2), wherein during normal operation, a fiber bundle (4) is supplied to at least one consolidating means of the textile machine, wherein a roving (2) having a protective twist is produced from the fiber bundle (4) by means of the consolidating means, wherein, after leaving the consolidating means and by means of a winding device (5) arranged downstream of the consolidating means in a transport direction (T) of the roving (2), the roving (2) is wound onto a tube (6), and wherein a sensor system (9) monitors whether a roving (2) is being produced by the consolidating means and/or whether the roving (2) produced by the consolidating means is being wound onto the tube (6).

Abstract: The invention relates to a spinning preparation machine having at least one consolidating means for producing a roving (3) that has a protective twist and that is made of a fiber bundle (4) supplied to the consolidating means, having a drafting system (5) for drafting the fiber bundle (4) before the latter enters the consolidating means, wherein the drafting system (5) is arranged upstream of the consolidating means in a transport direction (T) of the drafting system (5), having a guide (6) arranged upstream of the drafting system (5) in the aforesaid transport direction (T) for guiding the fiber bundle (4) between a container (7) providing the fiber bundle (4) and the drafting system (5), wherein the guide (6) has a feed segment (8) facing away from the drafting system (5) for the fiber bundle (4) originating from the container (7) when the spinning preparation machine (1) is in operation, and has a delivery segment (9) facing the drafting system (5) for the fiber bundle (4), wherein the spinning preparation

Abstract: The invention relates to a spinning preparation machine having at least one consolidating means for producing a roving (3) that has a protective twist and that is made of a fiber bundle (4) supplied to the consolidating means, having a drafting system (5) that is arranged upstream of the consolidating means in a running direction (L) of the roving (3) and that serves for drafting the fiber bundle (4) before the latter enters the consolidating means, having winding device (6) that is arranged downstream of the consolidating means in the aforesaid running direction (L) and that serves for winding the roving (3) onto a tube (7), and having a movably mounted traversing element (8) arranged in the region of the winding device (6) that serves for guiding the roving (3) while the latter is being wound onto the tube (7).

Abstract: A spinning nozzle for an air-jet spinning machine has a base body with an internal turbulence chamber, an inlet opening for the fiber sliver which enters the turbulence chamber and a fiber guide channel for guiding the fiber sliver entering the inlet opening. A thread-forming element extends at least partially into the turbulence chamber and has an inlet mouth as well as an adjoining take-off channel for the thread in the transport direction. Air nozzles are directed into the turbulence chamber. The spinning nozzle has an extension piece that is releasably fixed to the base body in the region of the inlet opening, wherein the fiber guide channel adjoining the inlet opening is formed at least partially by a channel section of the extension piece.

Abstract: A roving machine and method for producing a roving from a fiber sliver has at least one spinning station with a vortex chamber, an infeed opening for the fiber sliver, and a roving forming element in the form of a spindle that has an inlet port and extends at least partially into the vortex chamber. The vortex chamber is associated with spinning nozzles through which air can be guided into the vortex chamber to impart, after a piecing process, a protective twist to the fiber sliver in the region of the inlet port. The spindle has a draw-off channel via which the roving provided with the protective twist is drawn out of the vortex chamber. Piecing nozzles are additionally associated with the vortex chamber, wherein each of the piecing nozzles has a flow direction which is aligned in the direction of the inlet port of the spindle.

Abstract: The invention relates to a spinning position (22) on an air-jet spinning machine, which serves to produce a yarn (1) from a fiber strand (2) consisting of fibers, wherein the spinning position (22) has a turbulence chamber (3) with an inlet port (4) for the fiber strand (2) entering the turbulence chamber (3) in a direction of conveyance during operation of the air-jet spinning machine and has a yarn-forming element (5) extending at least partially into the turbulence chamber (3); wherein the spinning position (22) has air jets (6) directed into the turbulence chamber (3), these air jets opening into the turbulence chamber (3) in the area of a wall (21) surrounding the turbulence chamber (3), air being introduced into the turbulence chamber (3) through these jets in a predefined direction of twist to impart to the fiber strand (2) a twist in the aforementioned direction of twist in the area of an intake mouth (7) of the yarn-forming element (5); wherein the yarn-forming element (5) has a draw-off channel (8),

Abstract: The invention relates to a spinning nozzle for an air-jet spinning machine which is used for producing a thread (2) from a fiber sliver (3), wherein the spinning nozzle (1) has a base body (4) with an internal turbulence chamber (5), wherein the spinning nozzle (1) has an inlet opening (6) for the fiber sliver (3) which enters the turbulence chamber (5) in a transport direction when the air-jet spinning machine is operating, wherein a fiber guide channel (7) for guiding the fiber sliver (3) entering the inlet opening is provided between the inlet opening and the turbulence chamber (5), wherein the spinning nozzle (1) has a thread-forming element (8) which extends at least partially into the turbulence chamber (5) and has an inlet mouth (9) as well as an adjoining take-off channel (10) for the thread (2) in the transport direction, and wherein the spinning nozzle (1) has air nozzles (11) which are directed into the turbulence chamber (5) and which open out into the turbulence chamber (5) in the region of a wal

Abstract: A device and a method for winding a roving onto bobbin tubes using a turret winding head is provided. The turret winding head has a turret base plate having a first and a second spindle that are held in the turret base plate and are provided for receiving the bobbin tubes. The turret base plate and the spindles are each provided with their own drive. The longitudinal axes of the spindles are aligned in the vertical direction.

Abstract: The invention relates to a drive unit for powering a turret winding head for winding roving onto bobbin tubes. The drive unit comprises a closed housing, a first and a second spindle disposed in a turret base plate, wherein the turret base plate is formed as part of the housing and the spindles are disposed outside of the housing, and a first drive for the first spindle and a second drive for the second spindle, wherein the drive means are disposed inside the housing, and the first and second drives are each provided with a fan wheel. An intake duct, through which air is drawn in by the fan wheel from outside of the housing, is in each case provided on the intake side of the fan wheel of the first and second drives.

Abstract: The invention relates to a roving machine for producing a roving (1) from a fiber sliver (2), wherein the roving machine comprises at least one spinning station (3) which has a vortex chamber (4) with an infeed opening (5) for the fiber sliver (2) and a roving forming element in the form of a spindle (6) that has an inlet port (10) and extends at least partially into the vortex chamber (4), wherein the vortex chamber (4) is associated with spinning nozzles (19) through which air can be guided into the vortex chamber (4) in order to impart, after a piecing process, a protective twist to the fiber sliver (2) in the region of the inlet port (10), and wherein the spindle (6) has a draw-off channel (9) via which the roving (1) provided with the protective twist can be drawn out of the vortex chamber (4).

Abstract: An air spinning device has a nozzle body and a hollow spindle with a spindle tip and a longitudinal axis, wherein the spindle tip protrudes into the nozzle body. An outlet channel having a ring-shaped cross-sectional area is formed between an outside surface of the spindle tip and an inside surface of the nozzle body. The gap width at a certain location of the outlet channel normal to the longitudinal axis of the spindle is constant over the circumference of the spindle. The outside surface of the spindle tip and/or the inside surface of the nozzle body is/are shaped in such a way that at least two constrictions are formed in the outlet channel in its course in the direction of the longitudinal axis of the spindle, wherein the outlet channel has a ring-shaped cross-sectional area at each of these constrictions smaller than the ring-shaped cross-sectional area of the outlet channel upstream and downstream from each of these constrictions.

Abstract: Air spinning device (1) having a nozzle body (2) and a hollow spindle (3) with a spindle tip (8) and a longitudinal axis (7), wherein the spindle tip (8) protrudes into the nozzle body (2) and an outlet channel (13) having a ring-shaped cross-sectional area is formed between an outside surface (11) of the spindle tip (8) and an inside surface (12) of the nozzle body (2), and the gap width (S) at a certain location of the outlet channel (13), as seen normal to the longitudinal axis (7) of the spindle (3), is constant over the circumference of the spindle (3).

Abstract: The invention relates to an apparatus for winding a roving provided with a protective twist onto a roving bobbin, containing a bobbin mounting for the rotatable mounting of a roving bobbin and a traversing device for traversing in the bobbin axial direction the roving to be wound. The traversing device comprises a driven pair of winding delivery rollers arranged directly in front of the roving bobbin and having a nip line through which the roving to be wound is guided.

Abstract: The invention relates to a slubbing machine, the use of a twist application means, and a method for the manufacture of a roving yarn (9). The roving yarn (9) is manufactured according to the invention from a fiber assembly (3), which undergoes a true twist application (rotation) by mean of one or more air flows.

Abstract: A drawing frame-slubbing machine combination for manufacturing a roving yarn from a fiber assembly is disclosed. The drawing frame-slubbing machine combination includes a drawing frame for doubling and stretching a fiber assembly into a drafter sliver and a slubbing machine with a twist application component configured to apply a true twist to the drafter sliver by one or more air flows.

Abstract: The invention relates to an apparatus for winding a roving (15) provided with a protective twist onto a roving bobbin (12), containing a bobbin mounting (19) for the rotatable mounting of a roving bobbin (12) and a traversing device (11) for traversing in the bobbin axial direction (16) the roving (15) to be wound. The invention is distinguished in that the traversing device (11) comprises a driven pair of winding delivery rollers (17, 18) arranged directly in front of the roving bobbin (12) and having a nip line (20) through which the roving (15) to be wound is guided.

Abstract: The invention relates to a slubbing machine, the use of a twist application means, and a method for the manufacture of a roving yarn (9). The roving yarn (9) is manufactured according to the invention from a fibre assembly (3), which undergoes a true twist application (rotation) by means of one or more air flows.

Abstract: The invention relates to a Drawing-Frame-slubbing machine combination (35), with which, in the same machine, several fibre assemblies (38) are first doubled and stretched and a roving yarn (9) is then manufactured from this. The manufacture of the roving yarn (9) takes place in that a twist (rotation) is applied to the drafter sliver (3), whereby the twist application is effected by means of one or more air flows. To achieve this, the device (35) according to the invention exhibits a drawing frame (36) and one or more twist application means (4) arranged downstream of this.

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.