Abstract: A textile machine for producing cross-wound packages, the machine being equipped with a plurality of workstations arranged next to one another on both longitudinal sides of the machine and having a cross-wound package transport apparatus. The cross-wound package transport apparatus has a first transport device, arranged between the two rows of workstations for conveying cross-wound packages, and a handling apparatus for moving cross-wound packages from the first transport device to the second transport device. The handling apparatus is arranged between the end regions of the first transport device.

Abstract: Fibre band opening device for an open-end spinning device having a feed tray, a fibre band pull-in cylinder, and an opening roller having an opening roller clothing, the tips of which lie on a circular cylindrical surface, a support surface for fixing a fibre tuft, which is processed by the opening roller by combining, the distance of which support surface from the circular cylindrical surface is tapered in the fibre transport direction to a minimum distance, and a transition area having a convex curvature between the clamping surface and the support surface. The support surface has a distance of between 4 and 8 millimetres from the circular cylindrical surface at the beginning of the support surface with respect to the fibre transport direction, and the minimum distance of the support surface from the circular cylindrical surface is less than 1.5 millimetres.

Abstract: A textile machine for producing cross-wound packages, comprising a plurality of workstations, each of which has at least one pneumatic consumer, and comprising a suction system which has at least one vacuum source to which the pneumatic consumers of the workstations are connected via a machine-length vacuum duct arranged in the region of the central axis between two rows of workstations. In order to modify such a textile machine producing cross-wound packages in such a way that it is ensured that the required minimum spinning vacuum is always available at all workstations of the textile machine during spinning operation, according to the invention the textile machine producing cross-wound packages has, in addition to the vacuum duct, a machine-length bypass duct which is also installed in the region of the central axis and is arranged above chain ducts for service units.

Abstract: A tube storage and transport device for a textile machine producing cross-wound packages, which has a plurality of similar workstations arranged side-by-side on both longitudinal machine sides, having a central tube magazine and two empty-tube conveyor belts arranged in the region of the longitudinal machine sides is provided. To improve the known tube storage and transport devices, and in particular to optimize the clock times that can be achieved during the empty-tube delivery, the tube magazine has at least two elevator units, that the elevator units have stacked and vertically displaceable holders for empty tubes, that the holders are designed for the empty tubes to be set down in a manner oriented the longitudinal direction of the machine, and that each of the elevator units is connected to one of the empty-tube conveyor belts and is designed in such a way that empty tubes are removed from the elevator units from the longitudinal machine side and transferred onto the empty-tube conveyor belts.

Abstract: An open-end spinning device having a rotor housing (1) which can be acted upon by negative pressure and a spinning rotor (2), the rotor housing (1) is open towards the front and can be closed by a cover element, to the rear the rotor housing (1) has a rear wall (3) with a passage opening (4) for a rotor shaft (5) of the spinning rotor (2). In order to prevent the occurrence of thread coils inside the rotor housing (1) behind the spinning rotor, a narrow gap (6) of less than 2 mm is provided between the spinning rotor (2) and the rear wall (3) of the rotor housing (1) at the largest outer diameter of the spinning rotor (2) and the rear wall (3) of the rotor housing (1) is designed such that the area (7) behind the spinning rotor (2) is covered inside the rotor housing (1).

Abstract: Fibre band opening device for an open-end spinning device and feed tray for the fibre band opening device. The feed tray has a clamping surface, which is designed to transport, in conjunction with a fibre band pull-in cylinder, a feed fibre band towards an opening roller having an opening roller clothing, the tips of which lie on a circular cylindrical surface, a support surface for fixing a fibre tuft, which is processed by the opening roller by combining, the distance of which support surface from the circular cylindrical surface is tapered in the fibre transport direction to a minimum distance, and a transition area having a convex curvature between the clamping surface and the support surface. The support surface has a distance of between 4 and 8 millimetres from the circular cylindrical surface at the beginning of the support surface with respect to the fibre transport direction, and the minimum distance of the support surface from the circular cylindrical surface is less than 1.5 millimetres.

Abstract: A tube storage and transport device for a textile machine producing cross-wound packages, which has a plurality of similar workstations arranged side-by-side on both longitudinal machine sides, having a central tube magazine and two empty-tube conveyor belts arranged in the region of the longitudinal machine sides is provided. To improve the known tube storage and transport devices, and in particular to optimize the clock times that can be achieved during the empty-tube delivery, the tube magazine has at least two elevator units, that the elevator units have stacked and vertically displaceable holders for empty tubes, that the holders are designed for the empty tubes to be set down in a manner oriented the longitudinal direction of the machine, and that each of the elevator units is connected to one of the empty-tube conveyor belts and is designed in such a way that empty tubes are removed from the elevator units from the longitudinal machine side and transferred onto the empty-tube conveyor belts.

Abstract: A fibre guide insert for an opening roller housing, with an insert body to be pushed into a mounting opening of the opening roller housing, the insert body having a fibre guide surface forming a fibre channel inlet and a fibre channel connection section connected to a fibre channel input. An opening roller housing for an opening device of an open-end rotor spinning device, having a fibre channel leading into an opening roller housing interior, where it adjoins a fibre channel input for fibres, and a mounting opening for a fibre guide insert, which mounting opening is open towards the opening roller housing interior.

Abstract: A textile machine for producing cross-wound packages, the machine being equipped with a plurality of workstations arranged next to one another on both longitudinal sides of the machine and having a cross-wound package transport apparatus. The cross-wound package transport apparatus has a first transport device, arranged between the two rows of workstations for conveying cross-wound packages, and a handling apparatus for moving cross-wound packages from the first transport device to the second transport device. The handling apparatus is arranged between the end regions of the first transport device.

Abstract: A textile machine for producing cross-wound packages, comprising a plurality of workstations, each of which has at least one pneumatic consumer, and comprising a suction system which has at least one vacuum source to which the pneumatic consumers of the workstations are connected via a machine-length vacuum duct arranged in the region of the central axis between two rows of workstations. In order to modify such a textile machine producing cross-wound packages in such a way that it is ensured that the required minimum spinning vacuum is always available at all workstations of the textile machine during spinning operation, according to the invention the textile machine producing cross-wound packages has, in addition to the vacuum duct, a machine-length bypass duct which is also installed in the region of the central axis and is arranged above chain ducts for service units.

Abstract: An open-end spinning device having a rotor housing (1) which can be acted upon by negative pressure and a spinning rotor (2), the rotor housing (1) is open towards the front and can be closed by a cover element, to the rear the rotor housing (1) has a rear wall (3) with a passage opening (4) for a rotor shaft (5) of the spinning rotor (2). In order to prevent the occurrence of thread coils inside the rotor housing (1) behind the spinning rotor, a narrow gap (6) of less than 2 mm is provided between the spinning rotor (2) and the rear wall (3) of the rotor housing (1) at the largest outer diameter of the spinning rotor (2) and the rear wall (3) of the rotor housing (1) is designed such that the area (7) behind the spinning rotor (2) is covered inside the rotor housing (1).

Abstract: A yarn withdrawal nozzle 13 for an open-end rotor spinning device 1 with at least two ferromagnetic projections for magnetically coupling to permanent magnets 31 arranged in depressions of a holder in the cover element 8 of a rotor housing 2, wherein the ferromagnetic projections correspond in their arrangement and dimensions to the depressions 30 in the holder. The ferromagnetic projections are formed directly in the yarn withdrawal nozzle 13 made from a non-magnetic material.

Abstract: A spinning rotor (3) for an open-end spinning device (1) operating in particular at high rotor speeds with a rotor cup (26), having a rotor bottom (6) and an opening (30) and having an annular wall section (31) designed as a fiber sliding wall. The rotor cup (26) in the transitional area between the rotor bottom (6) and the annular wall section (31) has a support collar (9) pointing away from the opening (30) of the rotor cup (26).

Abstract: A yarn withdrawal nozzle 13 for an open-end rotor spinning device 1 with at least two ferromagnetic projections for magnetically coupling to permanent magnets 31 arranged in depressions of a holder in the cover element 8 of a rotor housing 2, wherein the ferromagnetic projections correspond in their arrangement and dimensions to the depressions 30 in the holder. The ferromagnetic projections are formed directly in the yarn withdrawal nozzle 13 made from a non-magnetic material.

Abstract: A spinning rotor (3) for an open-end spinning device (1) operating in particular at high rotor speeds with a rotor cup (26), which comprises a rotor bottom (6) and an opening (30) and has an annular wall section (31) designed as a fiber sliding wall. The rotor cup (26) in the transitional area between the rotor bottom (6) and the annular wall section (31) has a support collar (9) pointing away from the opening (30) of the rotor cup (26).

Abstract: Arrangement for establishing and/or breaking a connection between a plug and a complementary mating plug, wherein a lever which can be pivoted about an axis is arranged on the plug. The connection between the plug and the mating plug can be broken when the lever is pivoted into a disconnection position and/or can be established when the lever is pivoted into a connection position. The plug is, in particular, a switch module, for example a tripping module for a mating plug which is in the form of a circuit breaker.

Abstract: A switching arrangement includes a plug and a complementary mating plug for establishing and separating a connection between the plug and the mating plug. The plug includes a locking bolt disposed rotationally about an axis. The locking bolt includes a thread and the mating plug includes a mating thread. The plug is lockable to the mating plug by driving in the thread of the locking bolt into the mating thread. The switching device is configured to be moved to a connected position by driving in the thread of the locking bolt into the mating thread, and thereby providing a movement of the plug relative to the mating plug, and is configured to be moved to a disconnected position by driving out the thread of the locking bolt from the mating thread, thereby providing the movement of the plug relative to the mating plug.

Abstract: Arrangement for establishing and/or breaking a connection between a plug and a complementary mating plug, wherein a lever which can be pivoted about an axis is arranged on the plug. The connection between the plug and the mating plug can be broken when the lever is pivoted into a disconnection position and/or can be established when the lever is pivoted into a connection position. The plug is, in particular, a switch module, for example a tripping module for a mating plug which is in the form of a circuit breaker.

Abstract: A fiber guide channel device for an open-end spinning mechanism with a fiber guide channel body, for fixation in an opening roller housing and having a receiving opening for a fiber guide channel insert in the region of a fiber guide channel entry defining a central fiber guide channel for pneumatically transporting individual fibers combed by an opening roller from a feed sliver to a high speed spinning rotor in a negative pressure rotor housing. The fiber guide channel body (14) is configured of a plastics material and the fiber guide channel insert (27) is manufactured as a sleeve-like annularly-closed component of a highly abrasion-resistant material.

Abstract: A fiber guide channel device for an open-end spinning mechanism with a fiber guide channel body, for fixation in an opening roller housing and having a receiving opening for a fiber guide channel insert in the region of a fiber guide channel entry defining a central fiber guide channel for pneumatically transporting individual fibers combed by an opening roller from a feed sliver to a high speed spinning rotor in a negative pressure rotor housing. The fiber guide channel body (14) is configured of a plastics material and the fiber guide channel insert (27) is manufactured as a sleeve-like annularly-closed component of a highly abrasion-resistant material.