Abstract: A spinning plant having one or more roving frames and one or more ring-spinning machines coupled by a common transporter has bobbin/core transfer units equipped with a color sensor which ensures that color coded cores representing particular roving qualities are replaced by full bobbins of the respective quality and vice versa, thereby avoiding problems of feed of the incorrect roving quality to a spinning machine and the winding of roving incorrectly on a color-coded core.

Abstract: Roving residue is removed from roving-bobbin tubes returned from the ring-spinning machines to the roving frame and upon detection of residual roving, that tube which carries a residue is switched with a tube from a magazine containing residue-free tubes. A color sensor detects the color of the tube with the residue to be removed from the train and a tube of corresponding color is positioned at the changeover station of the magazine. The colors and positions of the tubes in the magazine can be stored in data storage or a color sensor can detect the color of the tube in the magazine at the changeover position.

Abstract: The invention concerns a roving machine with a device for the automatic replacement of full roving bobbins journalled on a bobbin rail 4, with empty roving sleeves 13, which has at least one guide rail 5 for feeding a suspension carriage train 10 into and out of the region having front and rear flyer rows of a flyer rail 3 and a replacement region, the guide rail being transverse to the longitudinal direction of the roving machine and the suspension carriage trains having hangers in which the full bobbins 12 or the empty roving sleeves can be suspended for their automatic replacement in working positions, whereby the suspension carriage trains are each displaceable between the front and rear flyer rows in the guide rails and whereby the bobbin rail 4 is laterally movable relative to the suspension carriage train 10.

Abstract: A horizontal transporter at a roving frame level delivers full bobbins to a vertical movable carriage which picks up the bobbins from the bottom, replaces them with core sleeves, and lodges the bobbins in a second horizontal transporter at another story for the ring spinning units. The bobbin and core sleeves are always engaged from above by the horizontal transporters and remain erect when engaged from below by the vertical transporter.

Abstract: Improper actuation of a hanger for bobbins and bobbin core sleeves on a yarn-producing machine as a result of failure of the sleeve to seat properly at a spindle, is prevented by providing hangers with switching sleeves so that these can only be operated by a spindle shaft upon full insertion of the spindle into the roving sleeve.

Abstract: A transporter for textile plants having upstream machines providing full bobbins to downstream machines returning core sleeves to the upstream machines. The transport system has a suspension track extending in a loop around a plurality of the downstream machines for each upstream machine and provided with switches and shunts which allow reconfiguration of the loop which can have a diverting stretch for use when the downstream machine is shunted and for including one or more machines of the adjacent loops when desired in the first-mentioned loop. In all configurations, the path length is substantially the same and the length of the transporter is only slightly less so that a gap is provided between the leading and trailing ends of the transporter.

Abstract: A roving frame in which short trains of hangers are introduced transversely into two flyers of rows for replacement of full bobbins by empty core sleeves.

Abstract: A roving frame having a suspension carriage track extending through the flyers thereof has a parking rail which can accommodate the full length of the suspension carriage train which removes the full bobbins from the flyer row and on the parking rail, by cooperation with a stationary bobbin/sleeve exchanger or one movable along the parking track, can transfer the full bobbins to a transport track and mount empty core sleeves on the suspension carriage train.

Abstract: A roving frame has operating elements which engage rods mounted on a shank of each flyer of a flyer rail transversely to the pivot axis of the rod which is offset from the rod. The pressing fingers are swingable about this axis and can be urged outwardly to clear the bobbins and thus allow bobbin replacement.

Abstract: A bobbin changer is used in combination with a first textile machine having a first conveyor extending along an endless first path moving full bobbins or empty sleeves into the first machine and full bobbins or empty sleeves out of the first textile machine, a second textile machine having a second conveyor extending along an endless second path extending at a location adjacent the first path and moving full bobbins into the second textile machine and empty bobbins out of the second textile machine, and a third textile machine having a third conveyor extending along an endless third path extending at the location adjacent the first and second paths and moving full bobbins out of the third textile machine and empty sleeves into the third textile machine.

Abstract: In a flyer frame, when the flyers are oriented transverse to the plane of their axes, segments of a track are linearly or angularly inserted through the spaces between the flyer arms to guide the trolleys of the carriages suspended from the resulting track adapted to take up the full bobbins and deliver the empty bobbin cores.

Abstract: A conveyor-storage system for moving bobbins in a spinning plant between a fly frame, a ring-spinning frame, and a bobbin cleaner has an annular track having a first section extending from the fly frame to the ring-spinning frame, a second section extending from the ring-spinning frame to the cleaner, and a third section extending from the cleaner to the fly frame. A single large-capacity storage area immediately adjacent the track has respective first, second, and third feed tracks extending to the respective track sections. Respective first, second, and third three-point intersections connect each feed track with the respective track section for two-way movement of bobbins between each feed track and the respective track section.

Abstract: A transport system for transporting tube support members between textile machines includes a mobile transport unit having a plurality of superposed floorings each of which supports and guides several rows of the tube support members. An onsite transfer assembly adjacent each textile machine is operable to simultaneously load tube support members onto the parallel support paths of the mobile support unit while unloading tube support members from the parallel paths onto the textile machine. Each flooring of the mobile support unit includes a transverse support surfaces at each end of the parallel support paths onto which a newly loaded row of tube support members can be positioned for subsequent movement into the parallel support paths. Each flooring also includes an offload transverse support surface for supporting a row of the tube support members for transverse movement thereof onto an intermediate holding assembly of the onsite transfer apparatus (change assembly to apparatus above).

Abstract: A method and apparatus for exchanging roving bobbins on a ring spinning machine or the like. A temporary storage spindle is provided in a service unit which services the ring spinning machine and a roving cutting and piecing apparatus and a spindle are movable between the temporary storage spindle, the bobbin holder of the spinning machine and a spare bobbin frame of the spinning machine to receive and transfer bobbins thereat to the temporary storage spindle, the bobbin holder or the spare bobbin frame. In one exchange process, the bobbin on the bobbin holder is transferred directly to the spare bobbin frame after the bobbin on the spare bobbin frame has been transferred to the temporary storage spindle. Thereafter, the bobbin on the temporary storage spindle is transferred to the bobbin holder. According to another exchange process, the bobbin on the spare bobbin frame is transferred directly to the bobbin holder after the bobbin on the bobbin holder has been transferred to the temporary storage spindle.

Abstract: In the threading of roving coming from a roving bobbin into a running set of drafting rolls of a work station of a spinning machine, the beginning end of the roving coming from the roving bobbin is grasped and brought into the set of drafting rolls bypassing at least the first (upstream-most) pair of rolls and is delivered to the drafting rolls downstream thereof. Only then is the roving fed into the set of drafting rolls bypassing at least the first pair of rolls inserted laterally in the preceding (bypassed) roll pair or pairs from a side of the free or unjournaled end of the upper roll.

Abstract: Apparatus for spinning yarn from roving including a spinning frame with spinning units arranged thereon. The roving to be drawn is fed from a common double-roving bobbin to each of two neighboring spinning units, further referred to as spinning units pair. At least one stopping device is assigned to each of the spinning units of the spinning units pair, to stop and release again the roving feed to the two drawing frames of the respective spinning units pair. The purpose of the stopping device is to reduce the loss of roving and to avoid the danger of yarn lapping on the drawing rollers. The stopping device can be actuated by each of two yarn break sensors of the spinning units pair for the simultaneous arrest of the roving. In a second embodiment a yarn-setting carriage is provided on the spinning frame to correct a yarn break, such correction occuring only when all correction hindering conditions are absent.

Abstract: Apparatus and methods for automatically replacing emptying yarn spools at a spinning machine, especially ring spinning machines, which machines include a spool frame and a plurality of spinning stations, wherein full spools are brought to and empty spools are moved away from the spinning stations. Full spools are arranged along the spool frame of the spinning machine in at least one magazine row, either individually, or a plurality thereof in sections, and the magazine row in the region of the first emptying spool, or section of spools, includes an empty location. This empty or bypass location is intermittently along the magazine row.