EP0668380A2 - Procédé et dispositif pour la pose automatique d'un ruban de fibres sur une machine textile - Google Patents

Procédé et dispositif pour la pose automatique d'un ruban de fibres sur une machine textile Download PDF

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Publication number
EP0668380A2
EP0668380A2 EP95106898A EP95106898A EP0668380A2 EP 0668380 A2 EP0668380 A2 EP 0668380A2 EP 95106898 A EP95106898 A EP 95106898A EP 95106898 A EP95106898 A EP 95106898A EP 0668380 A2 EP0668380 A2 EP 0668380A2
Authority
EP
European Patent Office
Prior art keywords
sliver
tape
feeder
feed
belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95106898A
Other languages
German (de)
English (en)
Other versions
EP0668380B1 (fr
EP0668380A3 (fr
Inventor
Albert Kriegler
Michael Strobel
Claus Franz
Edmund Schuller
Rupert Karl
Michael Ueding
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rieter Ingolstadt GmbH
Original Assignee
Rieter Ingolstadt Spinnereimaschinenbau AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority claimed from DE19904015938 external-priority patent/DE4015938A1/de
Priority claimed from DE19904035439 external-priority patent/DE4035439A1/de
Application filed by Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP0668380A2 publication Critical patent/EP0668380A2/fr
Publication of EP0668380A3 publication Critical patent/EP0668380A3/fr
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Publication of EP0668380B1 publication Critical patent/EP0668380B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/18—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for supplying bobbins, cores, receptacles, or completed packages to, or transporting from, paying-out or take-up stations ; Arrangements to prevent unwinding of roving from roving bobbins
    • D01H9/185—Transporting cans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/0428—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements for cans, boxes and other receptacles
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/005—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing empty packages or cans and replacing by completed (full) packages or cans at paying-out stations; also combined with piecing of the roving
    • D01H9/008—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing empty packages or cans and replacing by completed (full) packages or cans at paying-out stations; also combined with piecing of the roving for cans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a method for the automatic application of a fiber sliver to a textile machine having a feeding device and to a device for carrying out this method.
  • the end of the sliver is brought into a defined receiving position, in which the end of the sliver is taken up as the beginning of the sliver and transferred to the feed device. Since the sliver is in a defined position for the pick-up, it is always picked up in the same position by the pick-up device and can therefore also be handled in the same way. Through this handling, the sliver can be brought into a defined state and in a defined position in relation to the feed device, so that the transfer and insertion into the feed device of the textile machine, i. H. the mooring can be carried out safely and quickly without difficulty.
  • a “textile machine” is to be understood as any textile machine that processes fiber slivers. These include e.g. Draw frames and spinning machines such as ring, air, false-wire and open-end spinning machines, but other textile machines to which fiber slivers are fed for processing can also be suitable, such as Circular knitting machines to which fiber tapes are fed for the production of pile fabrics and carpets.
  • Working elements can thus be a drafting system (e.g. on a draw frame or air spinning machine), a spindle (e.g. on a ring spinning machine), an opening roller (on an open-end spinning machine), a needle cylinder (on a circular knitting machine) and the like.
  • the place where these organs are located is referred to below as the job.
  • a textile machine in which the subject matter of the invention can be used has more than one job, but the invention is not restricted to this.
  • sliver should be understood to mean any sliver composed of fibers, irrespective of whether the sliver has a certain rotation, as is the case with sliver, or not.
  • feed device is taken to mean that device which picks up the sliver and feeds it to the working organ of the textile machine.
  • the sliver it is not necessary for the sliver to be brought into a controlled position only in the receiving position. In many cases it is expedient since it is particularly machine-friendly if the beginning of the tape is first brought into a standby position and is only transferred from this standby position to the receiving position.
  • This standby position can be provided at different points. According to a preferred embodiment of the method according to the invention, this standby position is provided on a can to be fed to the textile machine. Differences are also possible here.
  • a standby position or receiving position in the center of the jug or alternatively in its peripheral area outside the jug has proven to be particularly useful.
  • the beginning of the band is brought into the receiving position above a can fed to the feed device.
  • the sliver can only for some or all of the work steps from the tape storage z. B. remain on the route to the template on the feeder in the holder. This can be designed geometrically particularly cheap for handling.
  • the sliver to be fed is preferably picked up and clamped in a defined position, then cut and brought into a defined shape, whereupon the sliver thus prepared is brought in front of the feed device and inserted therein, a defined length of tape being introduced into the feed device and the insertion success being checked to fail when inserting the beginning of the tape to repeat the insertion process.
  • a high contact security is achieved because the sliver is given an optimal length and shape by the preparation and is also introduced into the feeding device over a predetermined length.
  • the jug has a diameter that is in the order of two workplaces next to each other, it is expedient to place the waiting position for a third jug as a reserve jug for the introduction of a sliver behind the two cans of two adjacent feeding devices arranged one behind the other in their workplaces provided in the feeder.
  • a device for automatically applying a sliver to a textile machine is provided with a sliver in which the sliver can be held in a defined receiving position, and a sliver feeder for receiving the sliver presented in the receiving position and for its introduction into the feed device .
  • the belt feeder can be designed differently and is formed in a simple embodiment by the can in which the sliver to be put on is placed in the feed device.
  • a filling station with a sliver and a control device for generating a relative movement between the sliver and the can is expediently provided in such a way that the sliver is deposited on or in the can with the end of the sliver in a defined position.
  • the tape feeder as a tape guide, since then the sliver can still perform axial movements in the tape feeder, which is desirable so that the fiber sliver only needs to be removed from the tape feeder at a later time after completion of the tape application.
  • a filling station with a sliver and a control device for generating a relative movement between the sliver and the sliver is provided in such a way that the end of the sliver is inserted into the sliver.
  • the sliver deposited in the sliver it is not necessary for the sliver deposited in the sliver to be taken up directly by the sliver feeder, through which it is also presented to the feed device of the textile machine.
  • the interposition of a tape recorder can prove to be expedient, with this tape recorder having the task of picking up the sliver deposited in a defined position on or in the can and transferring it to the tape feeder as the beginning of the tape .
  • the tape receiver and / or tape feeder is designed pneumatically according to an advantageous embodiment of the subject matter of the invention. It has proven to be advantageous for a secure take-up of the sliver and also for a safe transfer of the same to the belt feeders and / or to the feed device if the sliver and / or the belt receiver and / or the belt feeder has an essentially tubular, to a switchable one Has overpressure / vacuum source connected base body, which has at its free end a length adapted to the length of the tape end to be detected, which extends over a partial circumference of the base body. With effective The vacuum sliver is taken up while the overpressure is switched on for the transfer.
  • its base body is divided into a plurality of longitudinally extending chambers, each of which is delimited by a separate partial area of the screen and individually, i.e. can be switched to negative pressure or positive pressure independently of the other chambers.
  • This ensures both secure tape take-up and secure tape delivery. It is particularly expedient if the air flow in the pneumatic belt depositor and / or belt receiver and / or belt feeder can be controlled as a function of its movement, in particular when the belt is being dispensed.
  • the belt feeder is not arranged on the can, but rather at the end of a rail fastened to the machine frame, said rail advantageously being displaceable transversely to the machine longitudinal direction.
  • this rail can be brought with the belt feeder into a working position in which it protrudes laterally out of the machine, or can be brought back into a rest position in which it does not disturb the working area in front of the machine.
  • the tape feeder can be designed differently, but a design has proven to be particularly advantageous for the tape feeder to take up the tape, in which the tape feeder has two tape holders arranged at a distance from one another.
  • the two tape holders are expediently arranged essentially horizontally at the same height.
  • the tape holder can also be designed differently, but it should be possible to thread it in and out as simply as possible.
  • the first band holder is advantageously designed as a band guide and the second band holder as a clamp, as viewed in the direction of the beginning of the band.
  • the invention provides that the clamp of the sliver has an insertion guide that tapers in the transverse direction to the sliver between the two sliver holders and allows the sliver to be self-threaded.
  • the tape guide advantageously has a tape insertion slot leading radially outwards. It is therefore not necessary to provide an eyelet which can be opened and closed by opening a part thereof, but the band guide need not be actuated at all for the insertion and removal of the fiber band.
  • the sliver does not have to be threaded manually.
  • a device for threading the beginning of the sliver into the sliver guide is advantageously provided in a further embodiment of the invention, which is preferably designed as a controllable clamp.
  • the device for unthreading the fiber sliver is designed as a fork-shaped belt gripper that can be moved transversely to the fiber sliver and is located at a radial distance on an axis rotatable about its longitudinal axis.
  • the fork shape together with the transverse mobility relative to the sliver enables the sliver to be gripped more securely, while the rotational movement enables the sliver to be actually unthreaded.
  • the sliver gripper can be assigned a sliver guide which brings the sliver to a defined sliver run and which, according to a simple embodiment of the device according to the invention, is not a separate element but part of this sliver gripper.
  • a switching device for triggering the tape threading out of the tape guide, which switching device is expediently connected to a tape monitoring device in terms of control. In this way, the tape unthreading can take place depending on the success of the tape insertion into the feed device, such tape unthreading being avoided if the previous tape application has failed and must therefore be repeated.
  • a preferred embodiment of the subject matter of the invention can provide that the device for threading the sliver and / or the device for unthreading the sliver is formed by the sliver receiver or the sliver feeder .
  • the sliver In order to bring the sliver to a certain length, the sliver can Have tape length measurement mark. This then facilitates a defined cutting of the sliver.
  • the belt feeder of the device according to the invention has a controllable clamp which is movable transversely to the sliver located in the receiving position. This ensures that the sliver cannot inadvertently change its position relative to the sliver feeder after it has been taken up.
  • a design of the controllable clamp of the belt feeder as a pair of rollers has been shown to be particularly expedient, with the aid of which the beginning of the belt can be fed to the feed device and the rollers of which can be removed radially from one another in order to release the sliver again after it has been introduced into the feed device. It is not necessary for both rollers of the pair of rollers to be driven. Rather, it has proven to be particularly advantageous if the pair of rollers has only one drivable roller, the other roller being able to be carried along by the drivable roller.
  • the tape start preparation device has a controllable suction nozzle. Thanks to this controllable suction nozzle, the beginning of the band can be pneumatically pointed and thus brought into the desired shape.
  • the effect of the suction nozzle can be further supported by the fact that at least one compressed air nozzle with both an axial and a tangential component opens into it.
  • a further support of the air flow for sharpening the beginning of the tape is achieved if the suction nozzle has a helical inner contour.
  • the introduction of the sliver into the feed device can also be facilitated in that a feeder is connected upstream of the feed device. It is particularly advantageous if not only a single, but at least two belt holders are connected upstream of the feed device, the two belt holders of the feed device being optionally deliverable or can be brought into a standby position.
  • the at least one band holder can be opened and closed.
  • This at least one belt holder can advantageously be controlled as a function of the movement and / or position of the belt feeder.
  • the at least one belt holder is preferably designed as a feed hopper.
  • the tape feeder and possibly other provided auxiliary devices such as the beginning of the tape preparation device and clamps on one along a variety Movable maintenance device of the same type are arranged.
  • the belt holder and possibly other provided auxiliary devices such as the tape start preparation device and clamps are alternatively arranged on the transport device. So that one and the same transport device can also work together with different machines or devices, it is provided in a further expedient embodiment of the subject matter of the invention that the belt feeder and possibly other auxiliary devices such as belt start preparation devices and clamps are height-adjustable.
  • the invention enables the automatic application of the sliver to the feed device of a textile machine in a simple manner. This ensures that downtimes are reduced since it is not necessary for the operator to be immediately on hand when a sliver runs out in order to carry out the sliver application. Rather, this can be done by a maintenance device which, if desired, can also carry out the re-spinning in the case of a spinning machine.
  • An open-end spinning device 1 is usually part of an open-end spinning machine 16, which has a plurality of similar open-end spinning devices 1 arranged next to one another on one or both longitudinal sides of the machine.
  • Each open-end spinning device 1 has a spinning element which, in the embodiment shown, is designed, for example, as a spinning rotor 10.
  • the spinning rotor 10 is mounted in a known manner by means of a shaft 100 and is driven in the exemplary embodiment shown by means of a tangential belt 101.
  • the spinning rotor 10 is arranged in a rotor housing 102, the interior 103 of which is connected via a suction pipe connection 104 to a vacuum source, not shown.
  • a brake 11 can be delivered to the shaft 100 of the spinning rotor, which brake is connected to an actuating lever 13 via a linkage 12 which is only indicated schematically. If the free arm of the actuating lever 13 is acted upon in the direction of the arrow P 4 , the brake 11 comes to bear against the shaft 100 of the spinning rotor 10, so that the latter is braked.
  • the mechanism, which consists of the brake 11, linkage 12 and actuating lever 13, is suitably acted upon by an elastic element in the opposite direction of the arrow P 4 , that is to say in the direction of the arrow Ps, so that in the event of an application in In the direction of arrow P 4, the brake 11 returns to its release position.
  • the elastic element which acts on the mechanism consisting of brake 11, linkage 12 and actuating lever 13, is designed as a compression spring 130, which is supported on the actuating lever 13 on its arm facing the linkage 12 and on a machine part, not shown.
  • a feed device 2 which, in the exemplary embodiment shown, consists of a delivery roller 20 and a feed trough 21 which is pivotably mounted and is elastically pressed against the delivery roller 20 by a compression spring 22.
  • Downstream of the delivery roller 20 is a dissolving roller 24 arranged in a housing 23, which during normal production combs fibers (not shown) from a sliver 4 fed to it with the aid of the feed device 2 from a can 41, which fibers pass through a housing 23 in the fiber feed channel 25 extending the spinning rotor 10 are fed to the spinning rotor 10.
  • the fibers are deposited in the usual way on a fiber collection point in the spinning rotor 10, from where they are taken up by the end of a thread 44 and continuously bound into the end thereof.
  • the thread 44 is drawn off through a thread draw-off tube 26 with the aid of a pair of draw-off rollers 27 and wound onto a spool 28 which is driven in a known manner by a winding roller 29.
  • a thread monitor 14 which monitors the spun thread 44.
  • Thread tension bow Thread tension bow
  • traversing thread guide thread return device
  • thread end preparation device thread end preparation device
  • the open-end spinning device 1 is covered by a cover 105, which has a feed hopper 106, and is supported by a machine frame 107.
  • a signal device 15 is attached to the cover 105, e.g. in the form of a signal lamp which is connected in terms of control to the thread monitor 14 (usually with the interposition of a control device, not shown).
  • a belt feeder 3 is fastened to the machine frame 107 below the rotor housing 102. In the embodiment shown, this is done with the aid of a guide 30, in which the belt feeder 3 is slidably mounted transversely to the machine longitudinal direction.
  • the belt feeder 3 has a rail or guide rod 300 which extends through the guide 30 and carries a stop 301 at its machine-side end. At its end facing away from the stop 301, the guide rod 300 carries a band holder 31 which, according to FIG. 2, has two band holders 32 and 33 arranged at a distance from one another.
  • the tape holder 32 is designed as a helical tape guide and has a slot 322 between its coils 320 and 321, which is radial from the guide area for the fiber tape 4 enclosed by the coils 320 and 321 extends outwards.
  • the latter band holder 33 At a lateral distance a, which has a size that allows the sliver 4, which is delivered in a can 40, to be received between the band holders 32 and 33, is the latter band holder 33.
  • This is designed as a clamp according to FIG. 2 and consists of a fixed with the guide rod 300 connected to the clamping element 330 and a second clamping element 331 which is movably arranged for this purpose.
  • the clamping element 331 is acted upon by a compression spring 332 which in turn is supported on a spring receptacle 333 which is carried by the guide rod 300.
  • the clamping element 331 is thus held elastically in contact with the clamping element 330.
  • the free ends 334 and 335 of the clamping elements 330 and 331 are designed such that they move further and further apart from one another towards their free end. These two ends 334 and 335 thus form an insertion guide, which tapers in the transverse direction of the band course between the two band holders 32 and 33 and thus enables the automatic threading of the fiber band 4 in the direction of arrow P 3 (see FIG. 1).
  • the belt feeder 3 is - as FIG. 1 clearly shows - so high above the can 41 that the sliver 4 extending from the receiving position, which is below the feeding device 2, but above the can 40, to the open-end spinning device 1 via others Cans 41 is guided away and can not come into contact with the sliver 42 which is located in the can 41 placed between the feeding device 2 and the can 4 and which usually extends to above the upper edge of the can 41.
  • a tape feeder 5 is provided to accommodate the sliver 3 extending between the two sliver holders 32 and 33.
  • this consists of a controllable clamp in the form of a pair of overhung rollers 50, 51, of which the roller 50 can be driven by a motor 500 with the interposition of a clutch 501, while the roller 51 is designed as a loose roller , which is driven by the driven roller 50, in operation via the sliver 4 inserted into the pair of rollers.
  • This roller 51 which is designed as a loose roller, can be removed from the roller 50 by pivoting, so that a wedge-shaped gap 52 is formed between the two rollers 50 and 51.
  • the pivot mechanism for the roller 51 has not been shown in FIGS. 1 and 2.
  • the belt feeder 5 is also pivotally mounted as a whole on a rod 53 (see pivot point 530 in FIG. 2).
  • An arm 54 extends laterally from the belt feeder 5 and is connected in an articulated manner to the armature 540 of an electromagnet 541.
  • a new can 40 must already be made available and the sliver 4 must be inserted into the sliver feeder 3 so that when the old sliver runs out, a new sliver is already ready to be taken up by the sliver feeder 5 and to be presented and handed over to the open end.
  • Spinning device 1 is provided.
  • the new sliver 4 is removed from the can 40, which is essentially placed under the ribbon feeder 3, and inserted with its beginning (beginning of the ribbon 43 - FIG. 2) into the ribbon holder 33 located above the can, which is done by a simple movement in the direction the arrow P 3 (Fig. 1) can happen.
  • the thread monitor 14 If the old sliver 4 now runs out, the thread monitor 14 is actuated since the thread 44 breaks in the absence of the sliver 4. The thread monitor 14 sends a signal to the signal device 15 of the open-end spinning device 1 in the usual way.
  • the tape feeder 5, which is initially in a rest position 5 ', is caused by this signal to move from the rest position 5' (see FIG. 1) transversely to the sliver 4 in the take-up position into the tape take-up position (FIG. 2) .
  • the roller 51 is moved against the roller 50, so that the sliver 4 is clamped between the two rollers 50 and 51.
  • the belt feeder 5 is then brought in front of the feed device 2 of the open-end spinning device 1, the electromagnet 541 being excited and the rollers 50 and 51 being pivoted about the pivot point 530, so that this pair of rollers is arranged at right angles to the rod 53 (original position 5 "- Dashed representation in FIG. 2).
  • the fiber band 4 with the band start 43 is pulled out of the band holder 33.
  • the sliver 4 can remain in the tape holder 32 for any length of time, namely until it is unthreaded at any time, for example when a new sliver is to be inserted into the tape feeder 3, since its axial mobility is not impaired by the tape holder 32.
  • the feed device 2 is driven in coordination with the displacement movement of the belt feeder 5 or in coordination with the drive of the roller 50 of the belt feeder 5.
  • the motor 500, the clutch 501 and the electromagnet 541 are connected to a common control device 93 (FIG. 7), with which - possibly with the interposition of a machine-side control device 18 (see FIG. 8) - the drive of the feed device 2 communicates.
  • a single drive 200 is provided for the delivery roller 20, which is controlled by the control device 93 and / or 18 (FIG. 8).
  • the synchronization of the tape application and the switching on of the feed device 2 can take place in various ways.
  • the control device 93 which controls this movement, generate a control pulse for switching on the individual drive 200 of the delivery roller 20.
  • the delivery roller 20 is thus driven, which consequently grasp the fiber sliver 4 fed to it by the belt feeder 5 and can feed the opening roller 24 to dissolve it into individual fibers.
  • the feed device 2 is only switched on in order to be able to take up the sliver 4 that has been put on. It is also important that there is no excess tape between the rollers 50, 51 of the belt feeder 5 and the feed device 2.
  • the tape feed speed is therefore matched to the tape feed speed via the control devices 18 and 93.
  • the swiveling speed with which the belt feeder 5 approaches the feeding device 2 is adapted to the peripheral speed of the delivery roller 20 and thus to the feeding speed of the feeding device 2.
  • a switching flag 202 is arranged on the delivery roller axis 201 of the delivery roller 20, which is driven by a single drive 200, and is scanned by a light barrier 203 (see light source 204 and photo cell 205).
  • Corresponding commands are then delivered to the control device 93 via a line.
  • the control device 93 controls the speed at which the belt feeder 5 approaches the feed device 2 and feeds the sliver 4 into the feed device 2 in accordance with this pulse sequence predetermined by the delivery device 2.
  • This speed of the belt feeder 5 is either the same as or even slightly less than the peripheral speed of the delivery roller 20, so that a loop formation in the supplied sliver 4 is avoided with certainty.
  • the belt feeder 5 is brought up to the feed device 2 at any speed.
  • the belt feeder 5 is then stopped and the motor 500 of the roller 50 is switched on.
  • This motor 500 is now matched to the speed of the feed device in such a way that the roller 50 either has the same peripheral speed as the delivery roller 20, or else the roller 50 is driven at a somewhat lower peripheral speed, so that the sliver 4 between the rollers 50, 51 and the feeder 2 is slightly warped.
  • the sliver feeder 5 is activated so that it releases the sliver 4 and can return to its basic position. This completes the tape application process.
  • a thread break was produced by the sliver 4 previously fed to the feed device 2.
  • This re-spinning is carried out in the usual way by cleaning the spinning element, returning a thread end suitable for spinning up to the fiber collecting surface of the spinning rotor 10 or other spinning element, fibers being supplied to the fiber collecting surface by switching on the feeding device 2 by appropriate timing Tie the end of the thread, which is then drawn off again by the spool 28 and later by the pair of draw rollers 27 from the spinning rotor 10 or other spinning elements (eg friction spinning elements).
  • piecing methods that can be used in connection with the method and the device according to the invention, for which reason a detailed description of piecing is not given.
  • the spinning rotor 10 is braked during the initial feeding of the sliver 4 to the opening roller 24 by acting on the actuating lever 13 in the direction of arrow P 4 for the reasons described. Due to the negative pressure acting in the rotor housing 102 through the intake manifold connection 104, the fibers fed through the fiber feed channel 25 into the spinning rotor 10 are thus removed again from the rotor housing 102, so that the fibers in the spinning rotor 10 cannot form a fiber ring.
  • the piecing is prepared, which - as mentioned - is carried out in the usual way.
  • the feed device 2 is shut down for a predetermined time and only then put into operation again, so that a fiber ring is formed in the spinning rotor 10.
  • a start of the thread 44 which has been retrieved from the spool 28 and prepared for spinning, is placed on this fiber ring and connected to the fiber ring, whereupon the withdrawal of the thread 44 starts again in a known manner.
  • the fibers do not even get the opportunity to get into the spinning rotor 10, but are already sucked off at the circumference of the opening roller 24 until the beginning of the thread 44 has been returned to the spinning rotor 10 on its fiber collecting surface . The removal of the fibers is then stopped and the fiber stream is fed back into the spinning rotor 10 so that it can connect to the thread 44 already located there, which is then drawn off in the usual way.
  • a prerequisite for a piecing process to be able to be carried out in the case of an open-end spinning device 1 is that the tape application process has been carried out successfully.
  • a tape monitoring device 520 is provided according to FIG. 7.
  • this is essentially formed from the roller 50 and a sensor 503 and is thus arranged on the belt feeder 5.
  • the roller 50 has markings 502 which are scanned by the sensor 503 of a scanning device.
  • the sensor 503 is connected to the belt feeder 5 or its control device 93, to which the motor 500 of the roller 50 and the electromagnet 541 for the roller 51 are also connected.
  • a signal lamp 94 is also connected to the control device 93.
  • the roller 50 is not driven, in contrast to the state described above, since the sliver 4 is not transported, so that the sensor 503 cannot deliver any pulses to the control device 93.
  • the control device 93 now causes the signal lamp 94 to light up, so that the operator can initiate the tape application process again.
  • the tape application process can of course also be initiated automatically, with the signal lamp 94 only lighting up if the tape application has not been successfully completed even after several attempts.
  • failed attempts count program step N
  • the receiving position for the fiber sliver 4 is determined by the sliver holders 32 and 33 in the working position.
  • the two band holders 32 and 33 are arranged essentially on the same horizontal plane.
  • the two tape holders 32 and 33 can also be arranged one above the other, whereby in principle nothing essential changes for the tape take-up by the tape feeder 5.
  • the belt feeder 5, which can possibly also be formed by the pair of rollers 50, 51 shown, then only has to be rotated by 90 in comparison to the embodiment shown in FIG. 1 for the reception of the fiber band 4.
  • the sliver holder 33 is designed as a clamp in the previously described embodiment. However, this is not absolutely a requirement.
  • the tape retention can also be done by other means, e.g. B. suction air or a Velcro can be achieved.
  • Both strap holders 32 and 33 can also be designed as restraining means.
  • a solution is also possible in which both band holders 32 and 33 are designed both as a guide which allows axial movement and as a gudgeon which prevents undesired slipping out of the band holder 32 and 33.
  • the sliver 3 is slidably attached to the open-end spinning machine 16. If the belt feeders 3 protruding laterally from the open-end spinning machine do not interfere, they can also be rigidly attached to the machine frame 107.
  • the belt feeder 3 is a separate device, but it is also possible to provide the receiving position in or on the can 40, etc., ie to provide the can 40 itself as a belt feeder 3 and / or to form and present the sliver 4 through the can 40 of the open-end spinning device 1 or other textile machine for reception by the sliver feeder 5.
  • FIG. 4 A first embodiment of this type is explained with the aid of FIG. 4. As this figure shows, is in the middle of the can 400, i. in the center of the sliver 4 deposited in the can 40, a space into which the beginning of the sliver 43 protrudes.
  • a length b of at least 100 mm and a maximum of 200 mm has been found for this turned out to be particularly advantageous. If the strap end is shorter than 100 mm, there is a risk that the strap end will be pulled out of the can center 400.
  • a belt feeder 55 is also provided, which, in contrast to the belt feeder 5 shown in FIGS. 1 and 2, is of pneumatic design.
  • This belt feeder 55 consists essentially of a base body in the form of a tube 550, which is closed by a wall 551 at its front end which can be brought into the center of the can 400.
  • the tube wall is designed as a sieve 552 on a surface that extends along a producer line over part of the circumference of the tube 550.
  • the tube 550 is connected at its end, not shown, to a vacuum source, so that a suction air flow flowing into the tube 550 can be generated in the region of the screen 552. If the belt feeder 55 is now inserted into the center of the can 400 and rotated about its longitudinal axis (see arrow P 6 ), the sieve 552 arrives in the region of the end of the belt forming the later belt 43 and holds it there.
  • the belt feeder 55 can now be moved vertically upwards out of the can center 400. He takes the end of the tape with him.
  • the belt feeder 55 is now brought in front of the feed hopper 106 of the open-end spinning device 1 (FIG. 1), and the end of the belt now forming the start of the belt 43 is moved into the feed hopper 106 by a suitable movement of the belt feeder 55 into the clamping area between the delivery roller 20 and the feed trough 21 introduced so that the feed device 2 can take up the sliver 4 and transport it further.
  • the band feeder 55 is not moved to the extreme end of the sliver 4 during the insertion movement into the can 400, so that after the sliver 4 has been taken up by the Ribbon feeder 55 extends a predetermined ribbon length beyond the end of ribbon feeder 55. This free end of the sliver 4 can then be introduced into the feed device 2 by a movement through 180.
  • the screen 552 is divided into two sub-screens 552a and 552b by an intermediate wall which merges into a longitudinal wall 553 of the essentially tubular belt feeder 55.
  • two chambers 554 and 555 form in the belt feeder 55, each of which can optionally be connected to a negative pressure source or a positive pressure source, not shown, by switch valves, not shown.
  • both the chamber 554 and the chamber 555 are subjected to negative pressure.
  • the belt feeder 55 is then brought into the correct position for the transfer of the sliver 4 to the feed device 2, which can be done both by rotating it in the direction of arrow P 6 about its longitudinal axis and by pivoting it through 180 ° . If the belt feeder 55 is then located in front of the feed hopper 106 (see FIG. 5), the chamber 554 is initially pressurized so that the beginning of the belt 43 is blown into the feed hopper 106.
  • the belt feeder 55 is then raised in the direction of the arrow P 7 until the partial screen 552b also reaches the area in front of the feed hopper 106.
  • the second chamber 555 is now also subjected to excess pressure, so that the fiber sliver 4 can get further into the feed hopper 106 and into the feed device 2. Since the switching of the air conditions in the chambers 554 and 555 has to take place depending on the position of the belt feeder 55 relative to the feed device 2, it is advantageous if this changeover takes place depending on the movement or position of the belt feeder 55, but one is Time control for this purpose is also conceivable.
  • the screen 552 can also have more than only two sub-screens 552a and 552b and correspondingly more than only two chambers 554 and 555, which are then also individually controlled, as explained below using the example of a tape dispenser with the aid of FIG. 9 becomes.
  • FIG. 6 shows an alternative solution, in which the band end 430 extends outward beyond the can rim 401 and hangs outside the can 40, and here, as in the exemplary embodiment described above, the downwardly projecting band end should have a length that is between 100 mm and Is 200 mm.
  • a belt feeder 56 which is designed essentially in the same way as the belt feeder 55 shown in FIG. 4, can be used.
  • the belt feeder 56 is attached to the free end of a swivel arm 560, which can be rotated about a swivel axis 561.
  • the pivot axis 561 is located at the end of a support arm 562, which can be placed with its pivot axis 561 in the center of the can 40 for receiving the band end 430.
  • the belt feeder 56 is connected via lines (not shown) to corresponding sources of negative pressure or positive pressure, so that corresponding suction or compressed air flows can be generated in the belt feeder 56.
  • the support arm 562 is mounted in a suitable manner on the open-end spinning machine 16, expediently with the aid of a device which can be moved along the machine and is thus enabled to operate more than just one open-end spinning device 1.
  • the swivel arm 560 with the band feeder 56 is brought into the position shown in FIG. Now the swivel arm 560 is pivoted by at least 360 ° along the can rim 401, so that the belt feeder 56 surely passes the belt end 430 and takes it up in a defined manner due to the suction air draft prevailing in it.
  • this belt feeder 56 also works in the same way as that belt feeder 55 which is described with the aid of FIGS. 4 and 5.
  • a different arm instead of a swivel arm 560 if the can 40 is given a rotary movement instead of the arm. All that is essential is the relative movement between the sliver 4 and the sliver feeder 56, so that the sliver 4 reaches the area of the sliver feeder 56 and can be picked up by the latter.
  • the mechanical and pneumatic design, as described above, are merely exemplary embodiments. Other designs for taking up the sliver by adhesion due to icing or by electrostatic charging are also possible.
  • a cutting device 34 on an arm 302 of the guide rod 300 of the sliver 3.
  • This cutting device 34 simultaneously fulfills the task of a tape measuring device and can then be triggered manually or electrically in a manner not shown, if desired. If an electrical separation of the sliver 4 is not required, it may also be sufficient to provide only the arm 302 with a scale (not shown) for the dimension of the length of the sliver start 43, in which case the sliver 4 is shortened using a simple, for example can be done by hand in the place of the cutting device 34 shown in FIG. 2.
  • the cutting device 34 or the scale, not shown, thus forms a tape length measuring device which is attached to the tape feeder 3 and by means of which the length b of the tape start 43 desired for the tape application can be generated or checked. If the can 40 serves as a belt feeder 3, a marking on the circumference of the can may also be sufficient for this.
  • the sliver can also be separated in other ways. This makes it possible to use an injector through which a medium is directed onto the fiber sliver 4 (medium pulse). If necessary, the fiber sliver can also be burnt through, particularly in the case of natural fiber material, in which the risk of the fibers fusing is lower than in the case of synthetic fibers.
  • the separating device can be designed in various ways. Since a cutting device generates a rectangular profile of the band start 43, a device for pulling the fiber band 4 apart is particularly advantageous since it produces an essentially wedge-shaped band start 43. In the latter case, the tape cutting device is formed by the tape start preparation device 9.
  • a helical groove 957 is provided for this purpose in the suction pipe 95, into which compressed air nozzles 958 with an axial and a tangential component open at one or more points.
  • the suction pipe 95 is connected via a valve 930 and a vacuum line 959 to a vacuum source, not shown.
  • valve 930 and valves (not shown) for compressed air nozzle 958 generates an air flow in the suction tube 95, this is due to the spiral-like inner contour of the suction tube 95 in the form of air vortices (see arrow P 18 ) through the suction tube 95 and also rotates the leading end of the sliver 4, so that this by turning into a pointed shape is brought. As already mentioned above, this pointed end of the band facilitates later insertion into the feed device 2.
  • the beginning of the band is brought into a molding press (not shown).
  • a molding press (not shown).
  • inward-directed nozzles can then also be provided in this molding press, through which nozzles an icing agent or other hardening agent can be applied.
  • the device for applying a sliver which includes the described auxiliary devices from fixing the sliver 4 at a defined location on the can 40 or another sliver 3 to inserting the sliver 4 into the feeding device 2, in be modified in many ways.
  • individual features can be replaced by equivalents and combined with one another in any way.
  • the sliver 4 is brought into a receiving position in the vicinity of the feed device 2 to be operated.
  • the beginning of the band 43 can also be tapered by tearing off a section of band and brought into an optimal shape for application by manual sharpening.
  • FIG. 9 shows a schematic representation of the essential elements for implementing the invention.
  • the elements of the tape start preparation device 9, its clamps 91 and 92, and its control device 93, which have already been described above, and which are required for taking up and putting on the sliver 4, are located in this exemplary embodiment on a maintenance device 98 which runs along the open-end spinning machine 16 and its multitude of open-end spinning devices 1 can be moved.
  • This can be a maintenance device that, if desired, either only carries out the tape laying or which takes on additional tasks, such as. B. spool change, piecing, etc. If necessary, several different maintenance devices for one or more of the different special tasks can be provided on the machine.
  • FIG. 9 also shows a drive device 58 for the belt feeder 5, this drive device being able to produce a wide variety of movements as required.
  • the two photodiodes 173 and 174 are in control connection with the control device 18 of the open-end spinning machine 16.
  • Two control devices 177 and 178 are also in control connection with the control device 18, of which the drive device 177 of the rail 17 can give a longitudinal movement and the drive device 178 of the rail 17 can give a transverse movement.
  • the open-end spinning device 1 is fed by the feed device 2 with a sliver 4 which is removed from a can 40.
  • the sliver 4 is fed through the feed hopper 170 to the feed device 2.
  • the light barrier 175 thus detects the presence of a sliver 4.
  • the light barrier 176 detects the absence of a fiber sliver 4 and sends a corresponding false signal to the control device 18.
  • the control device 18 in turn sends a corresponding command to the control device 93 of the maintenance device 98. This, depending on the design or setting of the control device,
  • the maintenance device 98 either to this open-end spinning device 1, where a sliver 4 has run out, or stops the next time it drives past this open-end spinning device 1.
  • a sliver 4 previously provided in the sliver holder 32 is then taken up in the manner described above by the sliver feeder 5 and brought into the desired state in the sliver start preparation device 9. This has been indicated by the dashed line 59.
  • the tape feeder 5 is brought in front of the feed hopper 171, which has been indicated by the line 590.
  • the motor 500 is switched on for several revolutions, so that the rollers 50 and 51 insert the sliver 4 into the feed hopper 171 sufficiently far.
  • the pair of rollers consisting of the rollers 50 and 51 is opened and the sliver 4 introduced into the feed hopper 171 is released by the sliver feeder 5.
  • the sliver is pulled through the tape holder 32.
  • the rail 17 then returns to its starting position by means of a transverse movement with the aid of the drive device 178.
  • a new sliver 4 can be introduced into the now empty feed hopper 170, so that when the sliver 4 fed through the feed hopper 171 of the feed device 2 runs out, a new sliver 4 is fed into the feed device 2 by lateral backset and subsequent transverse offset of the rail 17 is introduced.
  • the absence of a sliver 4 can be signaled by means not shown, and depending on this signal, the provision of a new sliver can be triggered.
  • the two feed hoppers 170 and 171 arranged in the rail 17 fulfill the functions of belt holders. Such tasks can also be assigned to the feed hopper 106.
  • Such a tape holder - or such a pair of tape holders - upstream of the feed device 2 enables the tape to be put on in two stages. This is particularly advantageous if two conveyor holders are connected upstream of the feed device, which can be designed as feed hoppers 170 and 171, but alternatively also as clamps (not shown), but which should then be able to be opened and closed.
  • These belt holders can either be delivered to the feed device 2 or brought into a standby position.
  • the tape holders are designed as clamps, they are advantageously opened depending on the feed movement or the presence of the tape feeder 5 and closed depending on the return movement or the absence of the tape feeder in order to be able to pick up and hold back the new sliver 4.
  • the sliver 4 is thus in two stages on the textile machine, e.g. an open-end spinning machine 16. In the first stage, the sliver 4 is brought into a waiting position, from which the sliver 4 in the second stage at the desired time for introducing the sliver 4 is laterally and laterally offset in front of the running feed device 2 and is introduced into it.
  • this offset occurs as a function of the sliver 4 running out.
  • the monitoring device which monitors the fiber sliver 4 fed to the feed device 2
  • the monitoring device is provided at a location which is sufficiently far in front of the feed device 2, for example by fastening the light barriers 175 and 176 to the rail 17 with the aid of longer holders 162 and 163, the beginning of the sliver 43 of the new sliver 4 can be brought into the feed position at an early stage by displacing the rail 17 in such a way that it reaches the feeding device 2 overlapping with the end of the sliver 4 running out.
  • the work process is therefore not interrupted and does not need to be restarted.
  • the insertion process is repeated. Since the failure can be attributed to inadequate preparation of the beginning of the band 43, all processes from the preparation of the beginning of the band 43 are repeated. In the same way the rest of the procedure also applies to a failure of the direct tape application. In both cases, after a presettable number of unsuccessful attempts, these are terminated and a signal is generated, as has already been described above in connection with the direct tape application in a feed device 2, possibly also without the interposition of a feed hopper 106.
  • the greatest possible security during tape application is achieved if the sliver 4 to be fed to a feed device 2, which is in a defined receiving position, is picked up and clamped. The sliver 4 is then cut to a predetermined length. The sliver 4 is then given a defined shape in that the beginning of the sliver 43 is sharpened and optionally solidified in this shape. The sliver 4 prepared in this way is now brought in front of the feed device 2 and introduced into it. Now it is a matter of checking the success of the introduction, for which purpose the sliver 4 is monitored to determine whether it is being transported.
  • the working position cannot yet be assumed at this point in time, since the jug from which the sliver 4 that is about to run out will be removed is still in the working position. If this sliver 4 then runs out or the second defined sliver length has been reached, then the sliver 4 of the can 40 provided is placed on the relevant feed device 2. If the outgoing sliver 4 has not yet ended, it is cut off in a suitable manner. The empty-spun or almost empty-spun can 40 can then be removed from the working position and exchanged for the full can provided, which thus now comes into the working position.
  • a sensor scanning the inside of each can 40 and 41 is in the working position 303 or 304 is provided which, when the sliver 4 runs out, triggers the introduction of a sliver 4 which is in the ready position into the feed device 2.
  • this sensor 303 or 304 is attached to the guide rod 300 of the tape feeder 3, but it is possible to attach the sensor 303 or 304 to the tape feeder 5.
  • the first determined sliver length can, for example, be dimensioned such that the measured sliver 4 runs out within the next four hours. So there is still enough time to provide a filled jug and, if not previously done, to transfer the beginning of the tape into a defined receiving position.
  • the parts and units that are required for receiving the sliver 4 in a receiving position and for a template before and for its introduction into a feed device 2 can, depending on the type and design of the textile machine, for example with a card 79, also on the Textile machine itself; but they can also on a transport device, such as the Transport trolley 8, with which the cans 40 are delivered, can be arranged.
  • the sliver 4 If the sliver 4 is brought to a work station, for example in front of the feeding device 2 of an open-end spinning device 1, and is not yet in the receiving position, it must be brought into this. This can be done, for example, by a device for threading the beginning of the tape into the tape feeder 3, for example into the tape holder 32 designed as a tape guide according to FIG. 2.
  • the device for threading the sliver can essentially have the shape of one of the described belt feeders 5, 55 or 56. In the band holder 32, this threading device must be able to perform a movement according to arrow P 1 (FIG. 2). Because of the threading security, training as a controllable clamp (according to belt feeder 5) is particularly advantageous.
  • the tape pickup is designed like the tape feeder, the tape pickup can serve as a device for threading the sliver 4 into the tape feeder 3.
  • the sliver 4 can also be unthreaded from the sliver 3 by the sliver receiver or the sliver feeder.
  • FIG. 10 shows a device 35 for unthreading the sliver 4 from a sliver 3 of the type shown in FIG.
  • the device for threading out the sliver 4 essentially consists of a fork-shaped belt gripper 350, which is arranged at a radial distance at the end of a rotatable rod 351.
  • the sliver 4 is to be threaded out of the belt holder 31.
  • the device 35 for threading out the sliver 4 is brought into the position shown above the sliver 4.
  • the belt gripper 350 has on its open side an expanding insertion opening 352 which is designed such that it forms a sliver guide which brings the sliver 4 to a defined sliver travel and that the sliver gripper 350, when in the direction of arrow P 24 , ie transversely to the sliver 4, is lowered onto this, this is detected with certainty.
  • a separate guide can also be provided, which is located at another suitable location, e.g. B. is attached to the sliver 3 and the sliver 4 between the can 40 and tape holder 31 on a defined path.
  • the belt gripper 350 After the belt gripper 350 has taken up the sliver 4, it is rotated by rotation about the axis of the rod 351 in the direction of the arrow P 25 and takes the sliver 4 with it.
  • the arrangement of the tape gripper 350 relative to the bar 351 is such that when the bar 351 rotates in the direction of the arrow P 2S , when the bar 351 is essentially on the imaginary central axis h of the tape holder 3, the sliver 4 is rotated by the rotating tape gripper 350 is lifted out of the tape holder 32 and finally released completely by the tape gripper 350.
  • the guidance can also be dispensed with if the tape feeder is designed appropriately if it is ensured in another way that the fiber tape 4 can be removed.
  • the tape feeder can carry out a corresponding tape search movement and work with negative pressure, the picking up of the sliver 4 being able to be signaled on the basis of a change in negative pressure, so that the further operations of the removal process can then be carried out.
  • tape unthreading may only be carried out after the tape has been attached.
  • the device 35 for tape unthreading is therefore coupled to a switching device (not shown), which in the simplest case is designed as a timing relay or the like and triggers the tape unthreading.
  • a switching device not shown
  • it can also be coupled to the return movement of the belt feeder 5, 55 or 56, since the belt application has ended during this return movement.
  • this switching device is expediently connected directly or indirectly to the sliver monitoring device in front of the feed device 2 (e.g. the light barrier 175 or 176).
  • the switching device can also be connected to the belt monitoring device 520 of the rollers 50, 51.
  • the device for unthreading the sliver 4 from the sliver guide can be designed differently. If, for example, the band guide is designed in the form of a closed ring, from which a part of the circumference can be moved away for inserting or removing the sliver 4, the threading device is naturally designed and movable accordingly in order to achieve this opening and closing movement of the ring part and the to allow radial extension movement of the sliver 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
EP95106898A 1990-05-18 1991-05-17 Procédé et dispositif pour la pose automatique d'un ruban de fibres sur une machine textile Expired - Lifetime EP0668380B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19904015938 DE4015938A1 (de) 1990-05-18 1990-05-18 Spinnereianlage
DE4015938 1990-05-18
DE19904035439 DE4035439A1 (de) 1990-11-08 1990-11-08 Verfahren und vorrichtung zum automatischen anlegen eines faserbandes an einer textilmaschine
DE4035439 1990-11-08
EP91909136A EP0528884B1 (fr) 1990-05-18 1991-05-17 Procede et dispositif pour la pose automatique d'un ruban de fibres sur une machine textile

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP91909136.3 Division 1991-05-17
EP91909136A Division-Into EP0528884B1 (fr) 1990-05-18 1991-05-17 Procede et dispositif pour la pose automatique d'un ruban de fibres sur une machine textile

Publications (3)

Publication Number Publication Date
EP0668380A2 true EP0668380A2 (fr) 1995-08-23
EP0668380A3 EP0668380A3 (fr) 1995-11-02
EP0668380B1 EP0668380B1 (fr) 1998-04-01

Family

ID=25893312

Family Applications (5)

Application Number Title Priority Date Filing Date
EP91909388A Expired - Lifetime EP0528907B2 (fr) 1990-05-18 1991-05-17 Procede et dispositif pour le transport de cannettes plates entre des machines ou des dipositifs servant a travailler ou a traiter des bandes de fibres
EP91909136A Expired - Lifetime EP0528884B1 (fr) 1990-05-18 1991-05-17 Procede et dispositif pour la pose automatique d'un ruban de fibres sur une machine textile
EP96119796A Expired - Lifetime EP0770717B1 (fr) 1990-05-18 1991-05-17 Méthode et dispositif pour prélever et alimenter pneumatiquement un ruban sur une machine à filer du type open-end
EP95120117A Expired - Lifetime EP0709501B1 (fr) 1990-05-18 1991-05-17 Procédé pour remplacer des pots entre un chariot de transport pour pots plats et un métier à filer à bout libre et chariot de transport pour la mise en oeuvre de ce procédé
EP95106898A Expired - Lifetime EP0668380B1 (fr) 1990-05-18 1991-05-17 Procédé et dispositif pour la pose automatique d'un ruban de fibres sur une machine textile

Family Applications Before (4)

Application Number Title Priority Date Filing Date
EP91909388A Expired - Lifetime EP0528907B2 (fr) 1990-05-18 1991-05-17 Procede et dispositif pour le transport de cannettes plates entre des machines ou des dipositifs servant a travailler ou a traiter des bandes de fibres
EP91909136A Expired - Lifetime EP0528884B1 (fr) 1990-05-18 1991-05-17 Procede et dispositif pour la pose automatique d'un ruban de fibres sur une machine textile
EP96119796A Expired - Lifetime EP0770717B1 (fr) 1990-05-18 1991-05-17 Méthode et dispositif pour prélever et alimenter pneumatiquement un ruban sur une machine à filer du type open-end
EP95120117A Expired - Lifetime EP0709501B1 (fr) 1990-05-18 1991-05-17 Procédé pour remplacer des pots entre un chariot de transport pour pots plats et un métier à filer à bout libre et chariot de transport pour la mise en oeuvre de ce procédé

Country Status (8)

Country Link
US (1) US5276947A (fr)
EP (5) EP0528907B2 (fr)
JP (2) JP3521085B2 (fr)
BR (1) BR9105752A (fr)
CS (1) CS146291A3 (fr)
CZ (1) CZ146091A3 (fr)
DE (5) DE59108036D1 (fr)
WO (2) WO1991018135A1 (fr)

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EP0909844A3 (fr) * 1997-09-16 2000-05-24 Manfred Langen Support de pots de filature
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DE602004022597D1 (de) * 2004-06-30 2009-09-24 Ministero Dell Istruzione Dell Vorrichtung und verfahren zur einführung und vorförderung eines faserbands in ein spinnaggregat
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JPH05508688A (ja) 1993-12-02
WO1991018134A1 (fr) 1991-11-28
DE59108961D1 (de) 1998-05-07
EP0770717B1 (fr) 2003-03-19
EP0770717A3 (fr) 1997-08-13
BR9105752A (pt) 1992-05-19
EP0709501A2 (fr) 1996-05-01
DE59109248D1 (de) 2003-04-24
DE59108036D1 (de) 1996-08-29
EP0528884A1 (fr) 1993-03-03
JP3521085B2 (ja) 2004-04-19
EP0668380B1 (fr) 1998-04-01
EP0528907B1 (fr) 1999-03-17
EP0709501B1 (fr) 2002-10-02
EP0528884B1 (fr) 1996-07-24
EP0668380A3 (fr) 1995-11-02
EP0528907A1 (fr) 1993-03-03
EP0528907B2 (fr) 2002-08-14
CZ146091A3 (en) 1993-12-15
DE59109111D1 (de) 1999-04-22
WO1991018135A1 (fr) 1991-11-28
CS146291A3 (en) 1992-02-19
EP0709501A3 (fr) 1996-07-31
JPH05501739A (ja) 1993-04-02
US5276947A (en) 1994-01-11
DE59109242D1 (de) 2002-11-07
EP0770717A2 (fr) 1997-05-02

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