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 drawing frame system includes first and second drawing frames, wherein the second drawing frame utilizes the sliver produced by the first drawing frame. A can filling device is situated at the output of the first drawing frame for charging consecutively supplied cans with sliver. The second drawing frame has first and second creel rows each holding a plurality of cans. Sliver is supplied to the second drawing frame from the cans alternatingly from the first and second creel rows. A coiler can transport system moves sliver-filled cans from the can filling device to the first and second creel rows and also moves empty cans from the first and second creel rows to the can filling device.

Abstract: A conveyor system for an automatic coning machine having coning units for unwinding thread from spools carried by disks, wherein the system has a conveyor for feeding the spool carrying disks to the machine. A plurality of paths are connected to the feeding conveyor, wherein a path traverses an adjacent coning unit and includes a standby position adjacent the feeding conveyor for receiving spool carrying disks and an unwinding station at the coning unit for receiving spool carrying disks from the standby position.

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: An open-end rotor spinning machine is equipped with a service structure for the automatic correction of yarn breaks occurring in the course of the bobbin winding and for the automatic exchange of empty tubes for finished packages, wherein empty tubes are delivered to and finished packages are removed from the work stations via an endless transport device. The service structure has a package ejector for ejecting finished packages from the work stations, a tube gripper for retrieving an empty tube from the transport device, and a tube positioning device connected with the package ejector of the service structure to position an empty tube held by the tube gripper precisely into desired disposition relative to a respective work station to be supplied with an empty tube.

Abstract: A sliver can transport system includes a can vehicle for transporting sliver cans while traveling between a can delivery station, work stations of at least one sliver-processing textile machine having machine parts with fixed locations, a discharge station for empty cans, and path locations within the can transport system. The can vehicle has parking places for the cans, a loading and unloading device for the cans, and a positioning device for positioning the can vehicle relative to the parking places for the cans. At least two spaced-apart can stands each have at least two parking places for sliver cans and the parking places are each combined into self-contained structural units. The structural units have vertically adjustable floor supports for vertically positioning the can stands, and stops for engaging at least one of the fixed locations of the machine parts, a further one of the can stands and the path locations, for horizontal positioning in two degrees of freedom.

Abstract: Sliver is delivered from a drawing frame to an open-end spinning frame in sliver containing cans and, at a transfer location along the travel path of a servicing device for the spinning frame, sliver is removed from the cans in partial lots and transferred to a sliver transport location on the service device to be transported to a spinning station whose sliver supply has been exhausted, whereat the servicing device performs the transfer of the sliver lot to the spinning station as well as the introduction end the piecing-up of the sliver.

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: Provided for a spinning machine, a roving bobbin changing apparatus which includes a roving end finding/pick-up section equipped with a roving end finding/pick-up mechanism at a leading side as viewed in a direction in which the roving bobbin changing apparatus is moved for roving bobbin exchange, and a roving tying/bobbin exchange section equipped with a roving bobbin exchanging means at a trailing side. The roving tying device is so disposed as to be movable between the roving end finding/pick-up section and the roving tying/bobbin exchange section. The roving tying device can be moved by a belt to a new roving grasping position in the roving end finding/pick-up section and a roving tying position corresponding to that of a full roving bobbin transfer means in the roving tying/bobbin exchange section.

Abstract: A textile winding machine has a plurality of winding stations and a servicing device which travels along the winding stations. The winding stations are connected with an empty tube magazine disposed at the end of the machine via a conveyor extending along the machine. A manipulating device is provided at each winding station for transferring an empty tube into an intermediate tube storage location of the winding station. The manipulating device has a tube gripper pivotable between a tube pick-up position at the conveyor and a tube release position at the intermediate storage location. The servicing device replaces cheeses which have attained a predetermined diameter with empty tubes by transferring an empty tube out of the intermediate storage location of the respective winding station. In the process, the fill state of the intermediate storage location is monitored by a sensor system installed on the cheese changing servicing device.

Abstract: A method of servicing the individual winding stations of a multi-station winding machine, and wherein a plurality of identically equipped service carts is provided in a parking track, and such that upon receiving a call signal, each service cart may be moved from the parking track and along a service track and to the winding station which issued the call. The cart is then adapted to service the winding station, such as by doffing full yarn packages. The cart then may be moved to a transfer position where the full packages are received from the service cart for packing, or transport to a further processing machine.

Abstract: Doffer system for a textile machine, in particular for a multiposition textile machine, comprising a guiding device (3, 4, 5), which is arranged in front of and above a machine front, a transport unit (14) traveling along the guiding device (3, 4, 5), a hoisting device (17, 19) which allows to lower and raise the carrying frame (20), and at least one receiving mandrel (23, 24) which is arranged on the carrying frame (20) horizontally extending therefrom.

Abstract: An assembly for transporting empty tubes and cops in a ring-spinning machine. Driven conveyor belts are disposed alongside rows of spindles disposed on both sides of the ring-spinning machine. The conveyor belts are driven for delivering empty tubes to and removing cops from the spindles, and the conveyor belts have openings formed therein at a mutual spacing approximately corresponding to half the given spindle spacing for securing arbors for alternatingly supporting empty tubes and cops. Instead of the arbors, however, at least every other opening supports a driver which engages one of a plurality of caddies at an indentation formed in a support surface thereof and entrains it along the conveyor belt. Each of the caddies carry an arbor for an empty tube and for a cop. The caddies have a length which is less than the given spindle spacing. Guide tracks extend along the conveyor belts and they guide the caddies along the conveyor belts.

Abstract: A rotary position sensor is connected to the belt of an apparatus for receiving the full bobbins and delivering the empty bobbin cores to both sides of a spinning or twisting machine. The microprocessor control unit has a memory which stores the restarting positions of the belt and, based upon the count in this control unit of the pulses from the sensor, the motor driving the belt is brought to a standstill.

Abstract: A pair of tangential belts disposed for parallel movement on the left and right locations for individually driving a pair of left and right spindle trains disposed in a back-to-back relationship to each other are individually driven by means of a pair of motors at the opposite ends of a machine base, and a right take-up mechanism train is driven by a speed change gear connected to a driving pulley for a belt while a left take-up mechanism train is driven by another speed changing device connected to a turn pulley for a belt, the speed changing device and being disposed collectively at an end of the machine base.

Abstract: In a ring-spinning machine having a frame and a spindle bank holding a row of bobbins, a bobbin-changing apparatus has a gripper beam engageable with the bobbins of the spindle banks and movable between an upper and a lower position and a scissor linkage pivoted on the frame and on the gripper beam extendable for raising the beam and collapsible for lowering the beam. The linkage has a pair of arms both of which have lower ends, one of which is long and has an upper end pivoted on the beam and the other of which is short and has an upper end pivoted on the long arm below the beam. One of the lower ends is pivoted on and fixed against longitudinal movement on an abutment. A guide is longitudinally displaceable on the frame and the other lower end is pivoted on it. A spring-biasing unit exerts torque on one of the ends of one of the arms for upwardly biasing the beam at least in the lower position of the beam.

Abstract: An automatic bobbin-changing device (10) for a winding machine with a vertical winding axis, the device having a bobbin carrier (12) which can rotate about a vertical axis (13) and which can adopt two bobbin-holding positions staggered at an angle of about 180.degree.. The bobbin carrier (12) has a total of four gripper arms (25, 26, 27, 28) which work together in pairs to grip a bobbin (1, 2). On each gripper arm (25, 26, 27, 28) is a bobbin-support surface (29) which, during the bobbin-changing operation, is positioned under the bobbin lower-flange (1b, 2b). The bobbin is changed by lifting the bobbin carrier (12) by means of a lifting mechanism (52, 54, 55) in such a way that the bobbin (1) on the winding machine is lifted off its mounting, the bobbin carrier (12) subsequently being rotated through 180.degree. and lowered again.

Abstract: The handling of textile bobbins and textile bobbin tubes, particularly in yarn end preparation of textile bobbins, is improved by the pallet of the present invention which has an arbor of longer axial length than the textile bobbin tube it supports so as to protrude sufficiently from the textile bobbin tube that the arbor can be gripped while the textile bobbin remains supported on the pallet. A releasable connection between the base plate and arbor of the pallet in the preferred form of a functionally detachable plug-type snap connection allows for a temporary separation of these components. A pot-like covering body for the textile bobbin is connected to the base plate, particularly for conical or cylindrical cross-wound bobbins.

Abstract: A cans exchanging system whereby, out of cans arranged in plural rows in the longitudinal direction of a spinning frame, plural empty cans arranged in the direction orthogonal to the longitudinal direction of the spinning frame are carried out from the rows of cans, and plural full-loaded cans are carried in simultaneously to the carried-out position of the empty cans. A sliver piecing device for piecing together slivers, from sliver feeding cans to a spinning machine and slivers from full-loaded cans while carrying both cans on a cans exchanging carrier is mounted on the cans exchanging carrier.

Abstract: A robot device for a piled-package type double twister, capable of detecting the condition of a pilot lamp for indicating yarn breakage, provided in a double-twisting unit which unwinds yarns from two feed packages placed one over the other, twist the yarns, winds the twisted yarn, of starting a feed package changing operation when the take-up package has a predetermined size, of continuing the feed package changing operation if a sensor for detecting the exhaustion of the feed packages detects yarn at least on one of the two feed packages, and of returning the feed packages to their positions and terminating the feed package changing operation if both the feed packages have yarns.

Abstract: A sliver piecing unit 80 includes three sets of separable rollers 804 and 844, 806 and 846, and 808 and 848 for nipping a sliver S1 fed from a consumed can to a spinning machine. A throttling nozzle 870 is arranged between the second and third sets of rollers 806 and 846, and 808 and 848. The draft ratio between the first and second sets of rollers 804 and 844, and 806 and 846 can be varied between 1.0 and 2.0. A sliver feed unit 70 includes a separable first and second roller 702a and 702b for feeding a sliver S2 from a full can to the piecing unit 80 so that the slivers S1 and S2 are combined. The draft ratio between the first and second sets of rollers 804 and 844, and 806 and 846 is controlled to obtain combined slivers of a thickness corresponding to that of a single sliver. A nipping belt 884 and nipping roller 886 are provided at the outlet from the third set of the rollers 808 and 804 for obtaining a rubbing movement in the combined slivers.

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: The present invention relates to a textile machine for producing/processing yarns, in which the empty tubes and full yarn packages are transported by a product transport system which includes a guideway for the product conveying devices, and a separate overhead rail which supports a tractor drive unit. The tractor drive unit may be coupled to either end of the product conveying devices by an elongate chain, which permits the product conveying devices to be moved onto and from said tracks which extend along an aisle along the front of the textile machine.

Abstract: Because of the pot spinning process, it is more difficult to automate the supply of empty tubes, respooling of the spinning cake on an empty tube, and the removal of the spinning cops in a pot spinning machine than with other spinning processors. The present invention provides a completely automatic exchange of spinning cops for empty tubes at the spinning stations of a pot spinning machine by utilizing the yarn guides of pot spinning stations to place full yarn cops produced thereat into an upright position on carriers located on a movable conveyor extending underneath the spinning pots. With the spinning cops deposited onto the conveyor and with the yarn guide returned to a spinning position, the conveyor can transport the carriers with the spinning cops away and can deliver empty tubes to the spinning stations for receipt by the yarn guides to continue the spinning process.

Abstract: A transport vehicle transports a plurality of sliver cans between a can delivery station, work stations of a sliver processing textile machine, and a discharge station for empty cans along a given travel direction. The vehicle includes an undercarriage with a plurality of can parking places for the sliver cans. A plurality of can exchange mechanisms are provided, one for each can parking place. Each exchange mechanism includes a carriage supporting a respective one of the sliver cans. The carriage is slidable on the under-carriage transversly to the travel direction of the transport vehicle. A motor slidingly drives each of the carriages on the undercarriage. A can manipulating device, which is operatively associated with each of the carriages, displaces the sliver cans, setting them down and receiving them on a respective one of the carriages.

Abstract: A system in which a plurality of spinning frames and a plurality of winders are connected by a common bobbin conveying passage, a circulating passage having a bobbin sensor is provided on a spinning bobbin supplying passage from the bobbin conveying passage to the winders, and a stopper is provided at an inlet of the circulating passage, the stopper being adapted to stop receiving bobbins when the number of passing bobbins per a predetermined time detected by the bobbin sensor exceeds a set value.

Abstract: A method of handling flat coiler cans charged and to be charged with sliver in a sliver charging station of a sliver producing fiber processing machine includes the following steps: advancing an empty can into a first standby station situated in a zone of the sliver charging station; advancing an empty can from the first standby station into the sliver charging station; charging a can with sliver in the sliver charging station; advancing a full can from the sliver charging station into a second standby station situated in a zone of the sliver charging station; and advancing a full can out of the second standby station.

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: An apparatus for removing fully wound cheese-type textile yarn packages from a textile machine and replacing them with empty yarn winding tubes comprises an endless transport apparatus having a plurality of transport units connected via a traction member. Each transport unit has a freely accessible, upwardly facing transport receiver surface which is selectively used for receiving a completed cheese package as well as receiving an empty replacement tube. The exchange of a full package for an empty tube is performed by means of a traveling servicing unit on the textile machine, equipped with, among other things, a tube gripper for handling the empty replacement tubes and servicing elements for handling the completed cheese packages.

Abstract: A method and device for exchanging sliver containers on a sliver producing textile machine, particularly non-cylindrical containers, wherein the containers are supported on a support and are moved in a direction, perpendicular to their long axis past the coiling device. A respective shifting frame for the container to be filled and the adjacent container. The shifting frames grasp the two containers, raises them and enables the coiling device to fill the one container, then moves the containers to exchange the filled container for an empty one, and lowers the containers back to the supporting conveyor, wherein the sequence of filling and raising is selectively variable. The device carries out the foregoing steps. A non-circular sliver container has handles on opposite sides, particularly on its long sides, for being grasped by carrying means on the shifting frames of the device for raising and moving the containers. The handles may be holes in the container or recesses with bearing surfaces.

Abstract: A multi-station textile machine, especially a double twisting machine or cabling machine, has spool containers arranged adjacent to one another in rows for receiving feed spools. A guide rail of a continuously or intermittently driven endless conveyor extends about the periphery of the machine frame in close contact therewith and has spool holders for conveying the feed spools. The lowermost position of the feed spools conveyed by the spool holders defines a horizontal plane which is substantially at the same level as the plane defined by the upper side of the spool containers. The spool holders are spaced apart from one another by a distance which is three to eight times the distance between neighboring spool containers.

Abstract: A high efficiency facility for producing yarn is provided wherein fibers pass through machines in the following order: a mixing mechanism (1), a first pair of cleaners (5, 7), a laydown cross blender (11), a second pair of cleaners (15, 17), an air fiber separator (23), a pair of vertical mixers (26, 28), a pair of air fiber separators (33, 35), and a pair of multiple chute feeders (41, 43). A plurality of carding machines (61) receive the fibers from the feeders (41, 43) and produce carded sliver from the fibers. A coiling apparatus (63) receives the carded sliver from each of the carding machines (61) and coils it into a plurality of carding containers, from which a drawing frame (71) feeds the carded sliver into a plurality of drawing containers. A plurality of open-end spinning machines (81) spin the carded sliver into yarn packages.

Abstract: A winder-to-double twister connecting system, which comprises a yarn end picking device for picking out a yarn end from a package set on a tray, a package lifter for inserting a two-piled empty bobbin mounting adapter received from an overhead conveyor, into the tray on a circulating conveyor line, and for transferring a two-piled package mounting adapter to the overhead conveyor; a bobbin mover for pulling off, from an adapter, an empty bobbin coming on the circulating conveyor line; a package loader for taking up the package with the yarn end picked out from the tray and mounting the package to the adapter; and a bobbin stripper for removing remaining yarn from the empty bobbin received from the bobbin mover.

Abstract: A device and method are provided for bobbin evacuation on a movable conveyor belt. The invention particularly concerns a process for automatic evacuation of wound-up bobbins in a spinning, winding or twisting machine equipped with work stations on both sides, on a movable conveyor belt which is installed in the longitudinal center of the machine, whereby the bobbins can be replaced randomly. A device is described to carry out the process. It is a characteristic of the invention that the conveyor belt moves at a continuous speed and in that the state of occupancy of the conveyor belt is stored in a computer, whereby the automatic travelling carriage at the spinning station finds the location which is free at the moment through the computer during bobbin replacement and whereby the automatic travelling carriage deposits the bobbin on the continuously moving conveyor belt when the signal is given that the location is free.

Abstract: A system in which a plurality of spinning frames and a plurality of winders are connected by a common bobbin conveying passage, a circulating passage having a bobbin sensor is provided on a spinning bobbin supplying passage from the bobbin conveying passage to the winders, and a stopper is provided at an inlet of the circulating passage, the stopper being adapted to stop receiving bobbins when the number of passing bobbins per a predetermined time detected by the bobbin sensor exceeds a set value.

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 device for sequentially loading tubes in a spinning machine wherein the tubes are fed by a tube orientating device. The device disclosed includes a duct for guiding the fall of the tubes and provided at its lower end with a shutter which loads one tube at a time onto the pegs of the spinning machine doffing belt by withdrawing it from a stack of tubes accumulated within the duct to form a buffer stock.

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: 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.

Abstract: A textile winding machine having a transport system for recirculating bobbin tube support members carrying empty bobbins, and diverting tube support members carrying partially unwound bobbins, and tubes having remnant windings of yarn thereon into diverting paths is disclosed. Each bobbin has an information transfer device which contains data pertaining to the bobbin tube on which it is carried. At least one reading device is present in the transport system for reading the information transfer device. The transport system comprises a storage path for storing tube support members; a device for diverting tube support members; and a control unit connected to the reading device for controlling the diverting device to divert tube support members which tube support members are determined by the control unit in conjunction with the reading device to the storage path to have predetermined storage path conditions.

Abstract: A conveyor system for carrying various kinds of bobbins which can easily and reliably discriminate a wrong combination of a tray with a specific mark and a color bobbin of specific color, wherein a spinning bobbin wound on a color bobbin of specific color is inserted on a tray having a specific mark; the tray having the specific mark is selected by a tray selector from a main conveyor line on which two or more kinds of trays are transported together, being distributed to delivery lines and of specific winding unit groups. In the delivery lines, color sensors are mounted for discriminating color bobbins of specific color.

Abstract: Sliver-processing textile machines and can exchange stations include a can transport carriage to be moved in a given direction of motion for manipulating sliver cans having upper rims with outer peripheries. A can manipulating device is movable on the can transport carriage above the cans in a direction transverse to the given direction of motion for manipulating the sliver cans during an automatic can exchange. Four gripper elements for gripping the sliver cans to be manipulated are disposed at four mutually spaced-apart locations at the outer peripheries of the upper rims of the cans.

Abstract: A method for automatic silver can exchange operations includes the transport of full sliver cans on a sliver can transport carriage to and between the spinning stations of a textile spinning machine and is particularly suitable for the exchange of sliver cans at spinning stations of the type having a back row position for supporting a sliver can and a front row position for supporting another sliver can. In a situation in which sliver is still being drawn from the frontmost sliver can while the backmost sliver can is empty, the method includes the step of initially transferring the running sliver can to the transport carriage, positioning a can support on the transport carriage for receipt of the empty backmost sliver can, and transfer of the empty backmost sliver can. Thereafter, the method includes the step of indexing movement of a full sliver can on the transport carriage to position the can for subsequent transfer to the back row position of the spinning station.

Abstract: For the simplest possible alterations and only a minimal structure change in a roving frame, on a roving frame one, full bobbins and empty sleeves are transversed to and from a suspension carriage train guided through the flyers on a guide path formed by the flyers into the change position. For this purpose under the heads of the flyers and/or under the flyer bank of the roving frame guide bodies are arranged to provide a guide path for the suspension carriage train along the longitudinal axis of the roving frame in especially transverse positions of the flyers.

Abstract: An apparatus for transporting a coiler can includes a carriage for receiving the coiler can and a loading and unloading device mounted on the carriage for shifting the coiler can toward or away from the carriage. The loading and unloading device has an elongated stationary base element secured to the carriage; and a plurality of elongated runners oriented parallel to one another and the base element. The runners are displaceable relative to one another and the base element. One of the runners--termed as a first runner--adjoins the base element and another runner--termed as a second runner--adjoins the first runner. The device further includes a guide arrangement for guiding the first runner on the base element and for guiding the second runner on the first runner. In extended positions the first runner partially projects beyond the base element and the second runner partially projects beyond the first runner.

Abstract: A two-sided ring-spinning machine has a frame and a pair of parallel spindle banks each holding a respective row of bobbins. A bobbin-changing apparatus has respective gripper beams engageable with the bobbins of the spindle banks, respective scissor linkages pivoted on the frame and on the gripper beams extendable for raising the respective beams and collapsible for lowering the respective beams, and a single force-transmitting element connected to both of the linkages and displaceable longitudinally in one direction for extending the linkages and in the opposite direction for collapsing the linkages. A single drive is connected between the frame and the force-transmitting element for simultaneously vertically displacing both beams.

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 device for handling wound bobbins which are wound on a spinning machine includes an attending device which is moveable along the spinning machine from one wound bobbin to another. A tending device includes a lever which carries a gripping mechanism, for swinging the gripping mechanism toward and away from a wound bobbin. The gripping mechanism has gripping arms which can be spread for receiving a wound bobbin and then brought together for grasping a wound bobbin. The gripping mechanism can then rotate the arms through 180.degree. and the lever can move the mechanism over a conveyor to deposit the wound bobbin onto the conveyor in the same orientation, whether the bobbin was removed from the spinning machine from one side or from an opposite side.

Abstract: An automatic winder having a steam setting apparatus in which a steam setter for steaming bobbins is disposed along winding units behind a winder body in a system connecting an automatic winder for rewinding spinning bobbins to a fine spinning frame including a multitude of spindles for producing spinning bobbins, and a drying-holding line is provided subsequently to the steam setter.

Abstract: Empty trays are transferred from a main conveying line for conveying trays to a feed line branched off from the main conveying line, yarn packages are transferred one after another on the feed line from a doffing machine to the empty trays, and then the trays respectively loaded with the yarn packages are returned sequentially to the main conveying line. Thus, the yarn package conveying system curtails time necessary for transferring yarn packages form the doffing machine to the empty trays, and simplifies yarn package transferring work and the tray conveying machine.