EP0716169B1 - Textile machine for producing crosswound bobbins - Google Patents

Textile machine for producing crosswound bobbins Download PDF

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Publication number
EP0716169B1
EP0716169B1 EP95113894A EP95113894A EP0716169B1 EP 0716169 B1 EP0716169 B1 EP 0716169B1 EP 95113894 A EP95113894 A EP 95113894A EP 95113894 A EP95113894 A EP 95113894A EP 0716169 B1 EP0716169 B1 EP 0716169B1
Authority
EP
European Patent Office
Prior art keywords
yarn
thread
guide plate
textile machine
machine manufacturing
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.)
Expired - Lifetime
Application number
EP95113894A
Other languages
German (de)
French (fr)
Other versions
EP0716169A2 (en
EP0716169A3 (en
Inventor
Heinz-Dieter Göbbels
Stephan Kaspers
Hans-Willi Esser
Volker Reichardt
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
W Schlafhorst AG and Co
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
Application filed by W Schlafhorst AG and Co filed Critical W Schlafhorst AG and Co
Publication of EP0716169A2 publication Critical patent/EP0716169A2/en
Publication of EP0716169A3 publication Critical patent/EP0716169A3/en
Application granted granted Critical
Publication of EP0716169B1 publication Critical patent/EP0716169B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/48—Piecing arrangements; Control therefor
    • D01H4/50—Piecing arrangements; Control therefor for rotor spinning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/34—Traversing devices; Package-shaping arrangements for laying subsidiary winding, e.g. transfer tails
    • B65H54/343—Traversing devices; Package-shaping arrangements for laying subsidiary winding, e.g. transfer tails when starting winding on an empty bobbin
    • 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 invention relates to a cheese making Textile machine, in particular an open-end spinning machine, with one along the workplaces of the textile machine movable and positionable on these if necessary Service facility that an auxiliary thread transport device for Provision and disposal of one for the piecing process used auxiliary thread, the auxiliary thread by means of of a pneumatically actuated one Delivery tube bracket attached delivery tube to one in one Coil frame held empty sleeve can be created.
  • the service facility known from EP 0 106 806 B has for example with an auxiliary thread transport device numerous, sequentially controlled Auxiliary thread transfer elements.
  • the one from a supply spool Auxiliary thread is first drawn off by a thread clamp detected, which is arranged at the end on a pivot lever and conveyed by this into the area of a suction nozzle.
  • the Suction nozzle brings the auxiliary thread for spinning onto the spin box.
  • This second suction nozzle which is pivotable in the region of the winding device after re-spinning the new thread on an im Coil frame held empty sleeve.
  • the piecing unit according to EP 0 203 508 B is equipped with a Auxiliary thread transport device equipped, the two separate Suction nozzles and two individually controllable thread clamps having.
  • the one Thread delivery unit pulled auxiliary thread from the supply spool on Delivery plant exit captured by a suction nozzle and under formation a thread strand in the area of the winding device.
  • the auxiliary thread is through a centering agent positioned and from the thread search nozzle of the Piecing unit sucked in.
  • EP 0 311 987 B describes a service facility with a pneumatic, mechanical auxiliary thread transport device. On Auxiliary thread drawn from a supply spool is removed from one pneumatic thread transport device first one submitted mechanical feed device that the thread end in brings the area of the winding unit and to a special one Suction nozzle of the piecing carriage passes. The thread draw after the The mechanical re-spinning is then carried out Thread feeding device.
  • the generic DE 43 13 523 A1 describes a further development of the service facilities described above.
  • This well known The piecing unit has an auxiliary thread transport device a delivery pipe that works in different positions is pivotable.
  • the service facility offers the advantage of a simple one Construction.
  • the guide remains throughout Change / piecing cycle performed in a handling device, being over the end with a pivotable delivery pipe 'trained auxiliary thread transport device both that Delivery of the auxiliary thread as well as the disposal of the Auxiliary thread is done.
  • the facility can be used for this purpose defined either on a compressed air connection or on one Suction air connection can be switched.
  • a retractable thread guide plate arranged for this should ensure that the thread in a predetermined position on the Empty sleeve or the sleeve plate is tensioned.
  • the inventive design of the delivery pipe bracket with a delivery pipe, a pivoted one Thread guide notch and a thread laying slot Thread guide plate and one with respect to the thread guide plate staggered thread retention element on the one hand in a simple way, make sure that at the beginning of the thread transfer in the upper thread guide notch the swiveling thread guide plate far enough into the Area of the thread catch notches arranged on the core plate and is covered by these. On the other hand, it is in the thread catch notches then automatically take the thread in the one below Thread laying slit is pulled and thereby the location of the beginning each reserve winding to be applied exactly Are defined.
  • the thread guide plate is pivoted back, the Thread coming from the spinning organ through the thread retaining element pushed out of the thread laying slot and can, on Thread retention element sliding downwards from the Thread traversing device of the winding unit are taken over.
  • a is on the thread guide plate Stop arranged, which when swiveling the Thread guide plates on the bobbin frame. In this way is an exact, lateral positioning of the thread guide plate and thus its thread guide and thread laying means guaranteed.
  • the height orientation of the delivery tube bracket with respect to the Coil frame takes place according to a further embodiment of the Invention about a arranged on the delivery pipe bracket Positioning aid when swiveling the delivery tube holder in the thread transfer position in a fork-like stop on Coil frame engages and the height of the coil frame aligns.
  • the thread guide plate is one horizontal pivot axis rotatably and is supported by a Area of the pivot axis arranged spring-loaded Reset device held in its initial position.
  • the Swiveling the thread guide plate from the starting position in the thread transfer or thread laying position is preferably carried out by means of a pneumatic Thrust piston gear, being between the thrust piston gear and the thread guide plate a force limiting element for Example a coil spring that is switched on. To this Damage to the thread guide plate will be caused uncontrolled application of force by the thrust piston gear locked out.
  • Thread running direction arranged in front of the thread guide plate Thread retention element positioned such that when Swiveling the thread guide plate back into its starting position the thread in the thread-laying slot at this time is pushed out of this slot so that it is on Thread retention element slides down and into the Area of the traversing device of the winding unit.
  • an injector device is arranged on the delivery pipe a controllable electromagnetic directional valve defines with Compressed air can be applied.
  • the arrangement of the injector nozzle in the Mouth area of the auxiliary thread transport device ensure perfect thread transport because the thread in such an arrangement advantageously with a Train component is applied.
  • the delivery pipe a pant-like mouth area.
  • the delivery pipe runs in two spaced apart Wiring lines from, the mouths of the two pipes over a specially trained thread cutting device alternately can be connected to a vacuum source.
  • the Thread cutting device has one over one Thrust piston gear operated cutting and Locking slide, the front of a cutting edge and in Has a pinhole at a distance behind it.
  • Fig. 1 is a half of a known OE spinning machine indicated and designated 1.
  • Such Spinning machines have a large number of work stations 2, each with a spin box 3 and a winding device 4 are equipped.
  • this is done in spinning cans 5 submitted sliver 6 spun into threads 7, which on the Winding devices 4 are wound into cross-wound bobbins 8, 8 '.
  • the winding devices 4 are one Coil frame 9 for rotatably holding an empty tube 10 or a cheese 8 and a winding drum 11 for Equipped to drive the cheese.
  • the OE spinning machine 1 also has a rotating sleeve and Coil transport device 12 for supplying and disposing of the Spinning machine with empty tubes or packages.
  • a service facility for example a piecing unit 16, arranged.
  • the drive 17 of this piecing unit 16 has Rollers 18 or a support wheel 19.
  • the Supply of the piecing unit 16 with electrical energy is preferably carried out, as indicated, via a Sliding contact device 20.
  • Such piecing units 16 patrol constantly along the OE spinning machine 1 and intervene automatically if one of the workplaces 2 intervenes Action is needed.
  • Such a need for action lies For example, if a 2 at a job Thread breakage has occurred or if one of the Work a cheese on their prescribed Has reached diameter and exchanged for an empty sleeve must become.
  • the piecing unit 16 runs to the concerned job, positions itself there and searches in a "normal" thread break with its thread search nozzle 21 cracked, lying on the peripheral surface of the package 8 Thread end. After cleaning the spin box, the thread end is in the spinning box to a fiber ring running around it spun on.
  • Fig. 2 shows schematically a piecing unit 16 with all essential for carrying out the aforementioned operating cases necessary work items.
  • the piecing unit 16 has a console 56 arranged above the running gear 17 Sleeve gripping device 46, the gripping elements 47 on the Outside diameter of the coil and Sleeve transport device 12 in the area of the workplaces 2 transported empty tubes 10 is matched.
  • the piecing unit 16 also has a pivotable thread search nozzle 21, the suction slot that can be applied to the outer circumference of the package 8 can pick up broken thread ends.
  • It is still an exhaust and Drive arm 22 with an end arranged Drive roller 23 present.
  • the one (not shown) Drive motor acted on drive roller 23 can via a electrical clutch can be separated from their drive motor.
  • the piecing unit 16 with a Thread catcher 25, a thread puller 26, one Thread feeder 27 with feeder pliers 28 and Thread cutting device 29 and a controllable Thread take-off device equipped.
  • the thread take-off device consists of a take-off roller 30 and a swiveling Pressure roller 31.
  • This Auxiliary thread transport device 34 consists essentially of a pipe system 35, which has a flexible connecting element 36, for example a hose, with one in different Working positions pivotable delivery tube 37 is connected.
  • the delivery tube 37 is on a delivery tube holder 53 attached, the parallelogram 49 on a Swivel path S can be laid.
  • the pipe system 35 into the one of a supply spool via a yarn feed mechanism 43 44 withdrawn auxiliary thread 45 is fed in Entrance area on a suction air connection 39, which via a Valve 41 can be activated in a defined manner.
  • this is Area a first thread cutting device 42 in the pipe system 35 switched on.
  • the delivery pipe holder 53 is preferably a bent sheet metal part executed and has angled bearing projections 58, 59 or 60, 61 and bearing approaches 62, 63.
  • the Bearing approaches 62, 63 is the delivery pipe bracket 53 with the Parallelogram links 49 connected and along the in Fig. 2nd shown swivel path S in different working positions I-III positionable.
  • the one in front in the direction of the thread Bearing projection 59 also has a horizontal leg 59 'on which a thread retention element 66 is attached.
  • Thread guide plate 54 of the thread laying device 51 is rotatable stored.
  • the thread guide plate 54 is by a spring-loaded resetting device 52 in FIG. 4 shown starting position held and can over a pneumatic thrust piston gear 55 pivoted towards FR become. This has to limit the swiveling path
  • Thread guide plate 54 has a stop 67 which is swung out Condition on the coil frame 9 is present.
  • a force limiting element 69 is preferably in the form of a coil spring.
  • Thread guide plate 54 is further in its contour on the Empty sleeve 10 adapted thread guide approach 80 attached.
  • a common suction air source 71 in the Area of the delivery pipe string 37 'is also one Injector device 72 arranged via a valve 40 a compressed air line 38 can be connected.
  • the passage of the Delivery tube strings 37 'and 37' 'is by a cutting and Locking slide 73 of a thread cutting device 48 targeted lockable.
  • the cutting and locking slide 73 has a cutting edge 74 on the front for separating one into the Supply pipe string 37 incoming thread 7 and at a distance from Muzzle strands behind a pinhole 75, which during of the cutting process the delivery pipe string 37 '' automatically the suction air source 71 connects.
  • the delivery pipe string is 37 '' consequently during the cutting process Thread cutter 48 opened and during the rest Closed cycle time.
  • the device according to the invention works in detail as follows:
  • the piecing unit 16 detects or over the data transmission system of the OE spinning machine 1 communicated gets that an intervention at a job 2 is necessary, the piecing unit 16 runs to this Job and positions itself there. Then poses the piecing unit 16 either itself determines which error this job exists, for example "more normal" Thread break, cross-wound bobbin etc., or the Control of the piecing unit 16 is via the OE spinning machine data transmission system the reason of Request communicated.
  • the frame opener 32 then acts on one arm of the coil frame 9 arranged guide projection 57, that is, the arm of the coil frame 9 is pressed outward so that the cheese 8 is released and by the forward pivoting ejection and drive arm 22 of the piecing unit 16 transferred into the sleeve and coil transport device 12 can be.
  • the one arranged at the end on the drive arm 22 Drive roller 23 is damaged during this action to avoid on the package surface from its drive uncoupled.
  • the frame opener 32 and one on the guide shoulder 57 overlying pressure lever 33 pivot the coil frame 9 in a Empty sleeve transfer position, which is in a predetermined Distance above the winding drum 11 is located.
  • the gripper element 47 transfers the predetermined position Empty sleeve to the spool frame 9.
  • the proper handover the empty sleeve 10 is thereby via a on the drive arm 22nd arranged rotary encoder 24 monitors the missing or incorrectly inserted empty sleeve 10 due to a of the SET value deviating angular position of the drive arm 22 as an error recognizes.
  • the yarn feed mechanism 43 moves from the Supply spool 44 an auxiliary thread 45 is withdrawn and within the Auxiliary thread transport device 34 to the mouth of the Delivery tube 37 promoted.
  • the Auxiliary thread transport device 34 becomes the auxiliary thread 45 pneumatic, for example by means of a Compressed air connection 38 arranged injector 72 transported.
  • the delivery pipe 37 is at this point in time rear working position I, in which the mouth area of the Delivery tube 37 in the immediate vicinity of the suction slot Thread search nozzle 21 of piecing unit 16 stands.
  • the Thread search nozzle 21 is in a park position in the other control elements arranged in the piecing unit not be hindered. That about the Auxiliary thread transport device 34 delivered from the Mouth of the delivery tube 37 emerging end of the auxiliary thread 45 gets immediately into the effective range of the thread search nozzle 21 and is sucked into it.
  • the delivery pipe then swivels 37 in a second, for reasons of better clarity not shown, working position II.
  • the mouth of the is in this second working position Delivery tube 37 approximately in the upper position of the swivel path S. of the delivery pipe 37.
  • the auxiliary thread transport device just as much auxiliary thread 45 replenished as needed to between the mouth of the Delivery tube 37 and the thread search nozzle 21 an auxiliary thread strand 45 to span.
  • auxiliary thread 45 is now from the Thread piecing organs of piecing unit 16 for re-piecing used. That is, the auxiliary thread 45 is first of all Thread catcher 25 positioned and from the thread puller 26 to the Hand thread feeder 27. Then the between the Feeder pliers 28 of the thread feeder 27 auxiliary thread 45 cut by means of the thread separating device 29 and that separated thread end sucked from the thread search nozzle 21. The Auxiliary thread transport device is switched to suction air and the auxiliary thread 45 within the pipe system 35 through the Thread cutting device 42 cut. That in the feed tongs 28 of the thread feeder 27 is gripped auxiliary thread how usual, prepared, by the swiveling forward Thread feeder 27 transferred to spinning box 3 and in the spinning rotor applied to a fiber ring formed from individual fibers.
  • Thread catching device 79 consists of, for example, dovetail-like undercut driving grooves in the area of the plate.
  • the arranged on the delivery pipe bracket 53 Thread laying device 51 leads into the mouth of the Delivery tube 37 incoming thread in such a way over the Sleeve plate 78, that it is arranged on the sleeve plate, circumferential driving grooves 79 can be detected.
  • the thread laying device 51 has for this purpose retractable thread guide plate 54. That about you pneumatic drive 55 thread guide plate 54 that can be acted upon has a thread guide contour 70, which has a defined guide of the thread 7 allows.
  • Thread guide plate 54 can be rotated to a limited extent in a pivot axis 50 stored and has an approximately L-shaped Thread guide contour 70 with a thread guide notch 81 and a thread laying slot 82.
  • the thread 7 closes Start of the application process in the wiring harness 37 'of the Delivery tube 37, which at this time in the Working position III is positioned (Fig. 3).
  • the thread 7 lies, as indicated in Fig. 4, in the Thread guide notch 81 of thread guide contour 70
  • Appropriate control of the pneumatic cylinder 55 will Thread guide plate 54 and thus the thread guide contour 70 in the direction FR pivoted, the pivoting path through the installation of the Stop 67 on the frame arm 9 is limited.
  • the Indian Thread guide notch 81 is guided over the thread Sleeve plate 78 excited that it in the sleeve plate 78th arranged thread catcher 79 is detected.
  • the of the Drive roller 23 acted on drive arm 22 in direction A.
  • Empty sleeve 10 takes the sleeve plate 78, so that the captured Thread is shifted downwards in direction A.
  • the thread 7 slides out of the thread guide notch 81 and gets into the Thread laying slot 82.
  • the Thread cutting device 48 which is in the line strand 37 ' incoming thread 7 cut.
  • the one in the thread laying slot 82 guided thread becomes an on the empty tube 10 Reserve winding 83 wound (see Fig. 6) and then the coil frame with the empty tube onto the winding drum 11 lowered.
  • the delivery pipe 37 has in the mouth area a second wiring harness 37 ''.
  • the wiring harness 37 '' When separating the in the Wire harness 37 'incoming thread 7 will automatically switched, that is, the wiring harness 37 '' to the Vacuum source 71 connected. Switching takes place via the thread cutting device 48, the cutting and Locking slide 73 a front cutting edge 74 and one in Has spaced aperture plate 75 arranged behind.
  • the Arrangement is chosen so that when cutting the in Line 37 'incoming thread 7 at the same time Harness 37 '', which is generally closed the suction air source 71 is connected. That way the thread end cut in the cable strand 37 'immediately into the Cable harness 37 '' sucked in and thus fixed.
  • a thread guide approach 80 For guidance the cut thread end is also in the back of the Thread guide contour 70 a thread guide approach 80 is provided, whose leading edge is adapted to the shape of the empty sleeve 10.
  • Thread guide plate 54 pivoted back into its starting position.
  • the thread 7 slides in front of it in the thread running direction R.
  • the thread retention element 66 arranged on the thread guide plate 54 supported, from the thread laying slot 82.
  • the direction A circumferential empty tube 10 pulls the thread Thread retention element 66 down so that it from the Thread laying device 51 comes free and to the (not shown) transfer device of the winding unit can be.
  • the changeover / piecing cycle of the service facility is finished, that is, the change of operation Cross-wound bobbin / empty tube is completed.
  • the auxiliary thread transport device 34 is in its initial position swung back; the piecing unit 16 is for a new one Operation ready.

Description

Die Erfindung betrifft eine Kreuzspulen herstellende Textilmaschine, insbesondere eine Offenend-Spinnmaschine, mit einer entlang der Arbeitsstellen der Textilmaschine verfahrbaren und bei Bedarf an diesen positionierbaren Serviceeinrichtung, die eine Hilfsfadentransportvorrichtung zum Bereitstellen und Entsorgen eines für den Anspinnprozeß benutzten Hilfsfadens aufweist, wobei der Hilfsfaden mittels eines pneumatisch beaufschlagbaren, an einer Lieferrohrhalterung befestigten Lieferrohres an eine in einem Spulenrahmen gehaltene Leerhülse anlegbar ist.The invention relates to a cheese making Textile machine, in particular an open-end spinning machine, with one along the workplaces of the textile machine movable and positionable on these if necessary Service facility that an auxiliary thread transport device for Provision and disposal of one for the piecing process used auxiliary thread, the auxiliary thread by means of of a pneumatically actuated one Delivery tube bracket attached delivery tube to one in one Coil frame held empty sleeve can be created.

Es sind Serviceeinrichtungen Stand der Technik, die beim Auftreten eines Fadenbruches zunächst das Spinnelement reinigen und anschließend mittels eines Fadenendes, das von einer im Spulenrahmen der Spinnstelle gehaltenen Kreuzspule abgesaugt wird, wieder anspinnen. Diese bekannten und an sich bewährten Serviceeinrichtungen arbeiten mit speziellen Kreuzspulenwechselwagen zusammen, die dafür sorgen, daß fertiggestellte Kreuzspulen gegen Starterhülsen ausgetauscht werden. Die Starterhülsen, die vom Wechselwagen in den Spulenrahmen der Spinnstelle übergeben werden, enthalten bereits eine gewisse Fadenmenge, die die Serviceeinrichtung zum Wiederanspinnen benötigt.There are state-of-the-art service facilities at If a thread break occurs, first clean the spinning element and then by means of a thread end, which is from a in Aspirated bobbin frame of the spool held will spin again. These well-known and proven Service facilities work with special Cross bobbin carts together, which ensure that Completed cross-wound bobbins exchanged for starter tubes become. The starter sleeves, which from the change car in the Spool frames passed to the spinning station already contain a certain amount of thread that the service facility for Rewinding needed.

Serviceeinrichtungen, die sowohl "normale" Fadenbrüche beheben als auch Kreuzspulenwechsel durchführen können und außerdem einen beim Wiederanspinnen benötigten Hilfsfaden sofort wieder entsorgen, sind ebenfalls bekannt.Service facilities that fix both "normal" thread breaks and can also change the bobbin and also an auxiliary thread required for re-spinning immediately dispose are also known.

Die aus der EP 0 106 806 B bekannte Serviceeinrichtung hat beispielsweise eine Hilfsfadentransporteinrichtung mit zahlreichen, nacheinander angesteuerten Hilfsfadenübergabeelementen. Der von einer Vorratsspule abgezogene Hilfsfaden wird dabei zunächst von einer Fadenklemme erfaßt, die endseitig auf einem Schwenkhebel angeordnet ist und von dieser in den Bereich einer Saugdüse befördert. Die Saugdüse bringt den Hilfsfaden zum Anspinnen an die Spinnbox. Während der Überführung des Hilfsfadens durch den Schwenkhebel wird das Fadenende an einer weiteren Saugdüse vorbeigeführt, die dabei eine Fadenschlaufe einsaugt. Diese zweite Saugdüse, die in den Bereich der Spuleinrichtung schwenkbar ist, legt nach dem Wiederanspinnen den neuen Faden an eine im Spulenrahmen gehaltene Leerhülse an.The service facility known from EP 0 106 806 B has for example with an auxiliary thread transport device numerous, sequentially controlled Auxiliary thread transfer elements. The one from a supply spool Auxiliary thread is first drawn off by a thread clamp detected, which is arranged at the end on a pivot lever and conveyed by this into the area of a suction nozzle. The Suction nozzle brings the auxiliary thread for spinning onto the spin box. During the transfer of the auxiliary thread through the swivel lever the thread end is guided past another suction nozzle, which soaks in a thread loop. This second suction nozzle, which is pivotable in the region of the winding device after re-spinning the new thread on an im Coil frame held empty sleeve.

Das Anspinnaggregat gemäß EP 0 203 508 B ist mit einer Hilfsfadentransporteinrichtung ausgestattet, die zwei separate Saugdüsen sowie zwei einzeln ansteuerbare Fadenklemmen aufweist. Bei dieser Einrichtung wird der von einem Fadenlieferwerk von der Vorratsspule abgezogene Hilfsfaden am Lieferwerksausgang von einer Saugdüse erfaßt und unter Bildung eines Fadenstranges in den Bereich der Spuleinrichtung verlegt. Anschließend wird der Hilfsfaden durch ein Zentriermittel positioniert und dabei von der Fadensuchdüse des Anspinnaggregates eingesaugt. Da die erste Saugdüse ständig absaugt, muß das Hilfsfadenende, das durch eine erste Fadenklemmeinrichtung in den Bereich der Spinnbox gebracht wird, während der Rückführung des Hilfsfadens in den Spinnrotor durch eine zweite Fadenklemme gesichert werden, da das Fadenende sonst in die erste Saugdüse eingesaugt würde.The piecing unit according to EP 0 203 508 B is equipped with a Auxiliary thread transport device equipped, the two separate Suction nozzles and two individually controllable thread clamps having. In this facility, the one Thread delivery unit pulled auxiliary thread from the supply spool on Delivery plant exit captured by a suction nozzle and under formation a thread strand in the area of the winding device. Then the auxiliary thread is through a centering agent positioned and from the thread search nozzle of the Piecing unit sucked in. Because the first suction nozzle constantly sucks off, the end of the auxiliary thread, which by a first Thread clamping device brought into the area of the spin box during the return of the auxiliary thread into the spinning rotor be secured by a second thread clamp, because the Otherwise the thread end would be sucked into the first suction nozzle.

Die EP 0 311 987 B beschreibt eine Serviceeinrichtung mit einer pneumatisch, mechanischen Hilfsfadentransporteinrichtung. Ein von einer Vorratsspule abgezogener Hilfsfaden wird von einer pneumatischen Fadentransporteinrichtung zunächst einer mechanischen Zuführeinrichtung vorgelegt, die das Fadenende in den Bereich der Spulstelle bringt und an eine spezielle Saugdüse des Anspinnwagens übergibt. Der Fadenabzug nach dem Wiederanspinnen erfolgt anschließend über die mechanische Fadenzuführeinrichtung.EP 0 311 987 B describes a service facility with a pneumatic, mechanical auxiliary thread transport device. On Auxiliary thread drawn from a supply spool is removed from one pneumatic thread transport device first one submitted mechanical feed device that the thread end in brings the area of the winding unit and to a special one Suction nozzle of the piecing carriage passes. The thread draw after the The mechanical re-spinning is then carried out Thread feeding device.

Die vorbeschriebenen Serviceeinrichtungen sind in ihrem mechanischen Aufbau relativ kompliziert. Außerdem besteht die Gefahr, daß bei den häufigen Übergaben der Faden verlorengeht.The service facilities described above are in your mechanical structure relatively complicated. In addition, there is Danger that the thread will be lost during the frequent handovers.

Die gattungsgemäße DE 43 13 523 A1 beschreibt eine Weiterentwicklung der vorbeschriebenen Serviceeinrichtungen. Dieses bekannte Anspinnaggregat weist eine Hilfsfadentransporteinrichtung mit einem Lieferrohr auf, das in verschiedene Arbeitsstellungen einschwenkbar ist.The generic DE 43 13 523 A1 describes a further development of the service facilities described above. This well known The piecing unit has an auxiliary thread transport device a delivery pipe that works in different positions is pivotable.

Die Serviceeinrichtung bietet dabei den Vorteil eines einfachen Aufbaus. Außerdem bleibt der Hilfsfaden während des gesamten Wechsel-/Anspinnzyklus in einer Handhabungseinrichtung geführt, wobei über die endseitig mit einem verschwenkbaren Lieferrohr ' ausgebildete Hilfsfadentransporteinrichtung sowohl das Anliefern des Hilfsfadens als auch das Entsorgen des Hilfsfadens erfolgt. Die Einrichtung kann zu diesem Zweck definiert entweder auf einen Druckluftanschluß oder auf einen Saugluftanschluß geschaltet werden.The service facility offers the advantage of a simple one Construction. In addition, the guide remains throughout Change / piecing cycle performed in a handling device, being over the end with a pivotable delivery pipe 'trained auxiliary thread transport device both that Delivery of the auxiliary thread as well as the disposal of the Auxiliary thread is done. The facility can be used for this purpose defined either on a compressed air connection or on one Suction air connection can be switched.

Im Bereich des Lieferrohres ist eine Fadenverlageeinrichtung mit einem einschwenkbaren Fadenleitblech angeordnet, das dafür sorgen soll, daß der Faden in einer vorgegebenen Lage über die Leerhülse beziehungsweise den Hülsenteller gespannt wird.In the area of the delivery pipe there is a thread laying device a retractable thread guide plate arranged for this should ensure that the thread in a predetermined position on the Empty sleeve or the sleeve plate is tensioned.

Das heißt, durch das ausgeschwenke Fadenleitblech wird der Faden so in den Bereich des Hülsentellers verlagert, daß eine am Hülsenteller angeordnete Fadenfangeinrichtung den zwischen dem Lieferrohr und dem Fadenleitblech gespannten Fadenstrang erfassen und mitnehmen kann. Anschließend wird der Faden durch das zurückschwenkende Fadenleitblech so geführt, daß sich auf der Leerhülse eine Anfangswicklung bildet.That is, through the swung out thread guide plate Thread moved into the area of the core plate that a arranged on the core plate thread catcher between the strand of thread tensioned the delivery tube and the thread guide plate can capture and take away. Then the thread is through the swiveling thread guide plate guided so that on the empty tube forms an initial winding.

Ausgehend von Serviceeinrichtungen der vorbeschriebenen Gattung liegt der Erfindung die Aufgabe zugrunde, derartige Anspinnaggregate weiter zu verbessern.Starting from service facilities of the type described above is the object of the invention, such Piecing units continue to improve.

Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung gelöst, wie sie im Anspruch 1 beschrieben ist. This object is achieved by a device solved, as described in claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of Subclaims.

Die erfindungsgemäße Ausgestaltung der Lieferrohrhalterung, mit einem Lieferrohr, einem schwenkbar gelagerten, eine Fadenführungskerbe sowie einen Fadenverlegeschlitz aufweisenden Fadenleitblech und einem bezüglich des Fadenleitbleches versetzt angeordneten Fadenrückhalteelement stellt einerseits auf einfache Weise sicher, daß der zu Beginn der Fadenübergabe in der oben liegenden Fadenführungskerbe geführte Faden durch das ausschwenkende Fadenleitblech ausreichend weit in den Bereich der am Hülsenteller angeordneten Fadenfangkerben verlegt und von diesen erfaßt wird. Andererseits wird der in den Fadenfangkerben gefaßte Faden anschließend automatisch in den darunterliegenden Fadenverlegeschlitz gezogen und dadurch die Lage der zu Beginn jedes Spulvorganges aufzubringenden Reservewicklung exakt definiert. Beim Zurückschwenken des Fadenleitbleches wird der vom Spinnorgan kommende Faden durch das Fadenrückhalteelement aus dem Fadenverlegeschlitz geschoben und kann, am Fadenrückhalteelement nach unten weggleitend, von der Fadenchangiereinrichtung der Spulstelle übernommen werden.The inventive design of the delivery pipe bracket, with a delivery pipe, a pivoted one Thread guide notch and a thread laying slot Thread guide plate and one with respect to the thread guide plate staggered thread retention element on the one hand in a simple way, make sure that at the beginning of the thread transfer in the upper thread guide notch the swiveling thread guide plate far enough into the Area of the thread catch notches arranged on the core plate and is covered by these. On the other hand, it is in the thread catch notches then automatically take the thread in the one below Thread laying slit is pulled and thereby the location of the beginning each reserve winding to be applied exactly Are defined. When the thread guide plate is pivoted back, the Thread coming from the spinning organ through the thread retaining element pushed out of the thread laying slot and can, on Thread retention element sliding downwards from the Thread traversing device of the winding unit are taken over.

In bevorzugter Ausführungsform ist am Fadenleitblech ein Anschlag angeordnet, der sich beim Einschwenken des Fadenleitbleches an den Spulenrahmen anlegt. Auf diese Weise ist eine genaue, seitliche Positionierung des Fadenleitbleches und damit seiner Fadenführungs- und Fadenverlegemittel gewährleistet.In a preferred embodiment, a is on the thread guide plate Stop arranged, which when swiveling the Thread guide plates on the bobbin frame. In this way is an exact, lateral positioning of the thread guide plate and thus its thread guide and thread laying means guaranteed.

Die Höhenausrichtung der Lieferrohrhalterung bezüglich des Spulenrahmens erfolgt gemäß weiterer Ausgestaltung der Erfindung über eine an der Lieferrohrhalterung angeordnete Positionierhilfe, die beim Einschwenken der Lieferrohrhalterung in die Fadenübergabestellung in einen gabelartigen Anschlag am Spulenrahmen eingreift und dabei den Spulenrahmen höhenmäßig ausrichtet. The height orientation of the delivery tube bracket with respect to the Coil frame takes place according to a further embodiment of the Invention about a arranged on the delivery pipe bracket Positioning aid when swiveling the delivery tube holder in the thread transfer position in a fork-like stop on Coil frame engages and the height of the coil frame aligns.

In vorteilhafter Ausgestaltung ist das Fadenleitblech um eine horizontale Schwenkachse drehbar gelagert und wird von einer im Bereich der Schwenkachse angeordneten federkraftbeaufschlagten Rückstelleinrichtung in seiner Ausgangsstellung gehalten. Das Einschwenken des Fadenleitbleches aus der Ausgangsstellung in die Fadenübergabe- beziehungsweise die Fadenverlegestellung erfolgt vorzugsweise mittels eines pneumatischen Schubkolbengetriebes, wobei zwischen dem Schubkolbengetriebe und dem Fadenleitblech ein Kraftbegrenzungselement, zum Beispiel eine Schraubenfeder, eingeschaltet ist. Auf diese Weise werden Schäden am Fadenleitblech aufgrund unkontrollierter Krafteinwirkung durch das Schubkolbengetriebe ausgeschlossen.In an advantageous embodiment, the thread guide plate is one horizontal pivot axis rotatably and is supported by a Area of the pivot axis arranged spring-loaded Reset device held in its initial position. The Swiveling the thread guide plate from the starting position in the thread transfer or thread laying position is preferably carried out by means of a pneumatic Thrust piston gear, being between the thrust piston gear and the thread guide plate a force limiting element for Example a coil spring that is switched on. To this Damage to the thread guide plate will be caused uncontrolled application of force by the thrust piston gear locked out.

In weiterer Ausgestaltung der Erfindung ist das in Fadenlaufrichtung vor dem Fadenleitblech angeordnete Fadenrückhalteelement derart positioniert, daß beim Zurückschwenken des Fadenleitbleches in seine Ausgangsstellung der zu diesem Zeitpunkt im Fadenverlegeschlitz geführte Faden aus diesem Schlitz herausgeschoben wird, so daß er am Fadenrückhalteelement geführt nach unten weggleitet und in den Bereich der Changiereinrichtung der Spulstelle gelangt.In a further embodiment of the invention Thread running direction arranged in front of the thread guide plate Thread retention element positioned such that when Swiveling the thread guide plate back into its starting position the thread in the thread-laying slot at this time is pushed out of this slot so that it is on Thread retention element slides down and into the Area of the traversing device of the winding unit.

In weiterer Ausgestaltung der Erfindung ist im Mündungsbereich des Lieferrohres eine Injektoreinrichtung angeordnet, die über ein ansteuerbares elektromagnetisches Wegeventil definiert mit Druckluft beaufschlagbar ist. Die Anordnung der Injektordüse im Mündungsbereich der Hilfsfadentransporteinrichtung gewährleisten einen einwandfreien Fadentransport, da der Faden bei einer solchen Anordnung vorteilhafterweise mit einer Zugkomponente beaufschlagt wird.In a further embodiment of the invention is in the mouth area an injector device is arranged on the delivery pipe a controllable electromagnetic directional valve defines with Compressed air can be applied. The arrangement of the injector nozzle in the Mouth area of the auxiliary thread transport device ensure perfect thread transport because the thread in such an arrangement advantageously with a Train component is applied.

In weiterer Ausgestaltung der Erfindung weist das Lieferrohr einen hosenartig ausgebildeten Mündungsbereich auf. Das heißt, das Lieferrohr läuft in zwei beabstandet angeordneten Leitungsstränge aus, wobei die Mündungen der beiden Rohre über eine speziell ausgebildete Fadenschneideinrichtung wechselweise an eine Unterdruckquelle anschließbar sind. Die Fadenschneideinrichtung besitzt dabei einen über ein Schubkolbengetriebe betätigbaren Schneid- und Verschlußschieber, der frontseitig eine Schneidkante sowie im Abstand dahinter eine Lochblende aufweist.In a further embodiment of the invention, the delivery pipe a pant-like mouth area. This means, the delivery pipe runs in two spaced apart Wiring lines from, the mouths of the two pipes over a specially trained thread cutting device alternately can be connected to a vacuum source. The Thread cutting device has one over one Thrust piston gear operated cutting and Locking slide, the front of a cutting edge and in Has a pinhole at a distance behind it.

Weitere Einzelheiten der Erfindung sind nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Es zeigt:

  • Fig. 1. schematisch eine Hälfte einer OE-Spinnmaschine mit einer Serviceeinrichtung, die eine erfindungsgemäß ausgestattete Hilfsfadentransportvorrichtung aufweist,
  • Fig. 2 die Serviceeinrichtung gemäß Fig. 1 mit allen wesentlichen Bedienelementen,
  • Fig. 3 den Endbereich der Hilfsfadentransportvorrichtung mit der erfindungsgemäßen Fadenverlegeeinrichtung, in Seitenansicht,
  • Fig. 4 die Fadenverlegeeinrichtung gemäß Fig. 3, in Vorderansicht,
  • Fig. 5 eine Draufsicht auf die Verlegeeinrichtung gemäß Fig. 3, teilweise im Schnitt,
  • Fig. 6 die Fadenverlegeeinrichtung gemäß Fig. 4, mit ausgeschwenktem Fadenleitblech.
    • Further details of the invention are explained below with reference to an embodiment shown in the drawings. It shows:
  • 1 schematically shows one half of an OE spinning machine with a service device which has an auxiliary thread transport device equipped according to the invention,
  • 2 shows the service facility according to FIG. 1 with all essential operating elements,
  • 3 shows the end region of the auxiliary thread transport device with the thread laying device according to the invention, in a side view,
  • 4, the thread laying device according to FIG. 3, in front view,
  • 5 is a plan view of the laying device according to FIG. 3, partly in section,
  • Fig. 6, the thread laying device according to FIG. 4, with the thread guide plate pivoted out.

    • In Fig. 1 ist eine Hälfte einer an sich bekannten OE-Spinnmaschine angedeutet und mit 1 bezeichnet. Derartige Spinnmaschinen weisen eine Vielzahl von Arbeitsstellen 2 auf, die jeweils mit einer Spinnbox 3 sowie einer Spuleinrichtung 4 ausgerüstet sind. In den Spinnboxen 3 wird das in Spinnkannen 5 vorgelegte Faserband 6 zu Fäden 7 gesponnen, die auf den Spuleinrichtungen 4 zu Kreuzspulen 8, 8' aufgewickelt werden. Wie dargestellt, sind die Spuleinrichtungen 4 mit einen Spulenrahmen 9 zum drehbaren Haltern einer Leerhülse 10 beziehungsweise einer Kreuzspule 8 und einer Spultrommel 11 zum Antreiben der Kreuzspule ausgestattet.In Fig. 1 is a half of a known OE spinning machine indicated and designated 1. Such Spinning machines have a large number of work stations 2, each with a spin box 3 and a winding device 4 are equipped. In the spin boxes 3, this is done in spinning cans 5 submitted sliver 6 spun into threads 7, which on the Winding devices 4 are wound into cross-wound bobbins 8, 8 '. As shown, the winding devices 4 are one Coil frame 9 for rotatably holding an empty tube 10 or a cheese 8 and a winding drum 11 for Equipped to drive the cheese.

    Die OE-Spinnmaschine 1 weist außerdem eine umlaufende Hülsen- und Spulentransporteinrichtung 12 zum Ver- und Entsorgen der Spinnmaschine mit Leerhülsen beziehungsweise Kreuzspulen auf.The OE spinning machine 1 also has a rotating sleeve and Coil transport device 12 for supplying and disposing of the Spinning machine with empty tubes or packages.

    An beziehungsweise auf der Spinnmaschine 1 ist, an Führungsschienen 13, 14 sowie einer Stützschiene 15 verfahrbar, eine Serviceeinrichtung, zum Beispiel ein Anspinnaggregat 16, angeordnet. Das Laufwerk 17 dieses Anspinnaggregates 16 weist Laufrollen 18 beziehungsweise ein Stützrad 19 auf. Die Versorgung des Anspinnaggregates 16 mit elektrischer Energie erfolgt vorzugsweise, wie angedeutet, über eine Schleifkontakteinrichtung 20. Derartige Anspinnaggregate 16 patrouillieren ständig entlang der OE-Spinnmaschine 1 und greifen selbsttätig ein, wenn an einer der Arbeitsstellen 2 ein Handlungsbedarf entsteht. Ein solcher Handlungsbedarf liegt beispielsweise vor, wenn an einer Arbeitsstelle 2 ein Fadenbruch aufgetreten ist oder wenn an einer der Arbeitsstellen eine Kreuzspule ihren vorgeschriebenen Durchmesser erreicht hat und gegen eine Leerhülse ausgetauscht werden muß.On or on the spinning machine 1 is on Guide rails 13, 14 and a support rail 15 can be moved, a service facility, for example a piecing unit 16, arranged. The drive 17 of this piecing unit 16 has Rollers 18 or a support wheel 19. The Supply of the piecing unit 16 with electrical energy is preferably carried out, as indicated, via a Sliding contact device 20. Such piecing units 16 patrol constantly along the OE spinning machine 1 and intervene automatically if one of the workplaces 2 intervenes Action is needed. Such a need for action lies For example, if a 2 at a job Thread breakage has occurred or if one of the Work a cheese on their prescribed Has reached diameter and exchanged for an empty sleeve must become.

    In einem solchen Fall läuft das Anspinnaggregat 16 zu der betreffenden Arbeitsstelle, positioniert sich dort und sucht bei einem "normalen" Fadenbruch mit seiner Fadensuchdüse 21 das gerissene, auf der Umfangsoberfläche der Kreuzspule 8 liegende Fadenende. Nach Reinigung der Spinnbox wird das Fadenende in der Spinnbox an einen dort umlaufenden Faserring neu angesponnen. In such a case, the piecing unit 16 runs to the concerned job, positions itself there and searches in a "normal" thread break with its thread search nozzle 21 cracked, lying on the peripheral surface of the package 8 Thread end. After cleaning the spin box, the thread end is in the spinning box to a fiber ring running around it spun on.

    Etwas diffiziler gestaltet sich der Bedienvorgang, wenn zunächst eine volle Kreuzspule gegen eine Leerhülse getauscht und anschließend neu angesponnen werden muß.The operating procedure is somewhat more difficult if First a full package is exchanged for an empty tube and then has to be re-spun.

    Fig. 2 zeigt schematisch ein Anspinnaggregat 16 mit allen wesentlichen zum Durchführen der vorgenannten Bedienfälle notwendigen Arbeitselementen. Das Anspinnaggregat 16 besitzt an einer oberhalb des Fahrwerks 17 angeordneten Konsole 56 eine Hülsengreifeinrichtung 46, deren Greifelemente 47 auf den Außendurchmesser der über die Spulen- und Hülsentransporteinrichtung 12 in den Bereich der Arbeitsstellen 2 beförderten Leerhülsen 10 abgestimmt ist. Das Anspinnaggregat 16 weist außerdem eine schwenkbare Fadensuchdüse 21 auf, deren an den Außenumfang der Kreuzspule 8 anlegbarer Saugschlitz gerissene Fadenenden aufnehmen kann. Es ist weiter ein Ausstoß- und Antriebsarm 22 mit einer endseitig angeordneten Antriebsrolle 23 vorhanden. Die von einem (nicht dargestellten) Antriebsmotor beaufschlagte Antriebsrolle 23 kann über eine elektrische Kupplung von ihrem Antriebsmotor getrennt werden. Am Antriebsarm 22 ist außerdem ein Drehwinkelgeber 24 angeordnet, der eine Kontrolle der jeweiligen Position des Antriebsarmes ermöglicht.Fig. 2 shows schematically a piecing unit 16 with all essential for carrying out the aforementioned operating cases necessary work items. The piecing unit 16 has a console 56 arranged above the running gear 17 Sleeve gripping device 46, the gripping elements 47 on the Outside diameter of the coil and Sleeve transport device 12 in the area of the workplaces 2 transported empty tubes 10 is matched. The piecing unit 16 also has a pivotable thread search nozzle 21, the suction slot that can be applied to the outer circumference of the package 8 can pick up broken thread ends. It is still an exhaust and Drive arm 22 with an end arranged Drive roller 23 present. The one (not shown) Drive motor acted on drive roller 23 can via a electrical clutch can be separated from their drive motor. There is also an angle of rotation sensor 24 on the drive arm 22 arranged, which is a control of the respective position of the Drive arm enables.

    Des weiteren ist das Anspinnaggregat 16, wie bekannt, mit einem Fadenfangblech 25, einem Fadeneinzieher 26, einem Fadenzubringer 27 mit Zubringerzange 28 und Fadentrenneinrichtung 29 sowie einer steuerbaren Fadenabzugseinrichtung ausgestattet. Die Fadenabzugseinrichtung besteht aus einer Abzugsrolle 30 sowie einer abschwenkbarer Druckrolle 31.Furthermore, the piecing unit 16, as is known, with a Thread catcher 25, a thread puller 26, one Thread feeder 27 with feeder pliers 28 and Thread cutting device 29 and a controllable Thread take-off device equipped. The thread take-off device consists of a take-off roller 30 and a swiveling Pressure roller 31.

    Als weitere Bedienungselemente sind in das Anspinnaggregat 16 ein Rahmenöffner 32, ein Druckhebel 33 sowie eine Hilfsfadentransportvorrichtung 34 eingebaut. Diese Hilfsfadentransportvorrichtung 34 besteht im wesentlichen aus einem Rohrsystem 35, das über ein flexibles Verbindungselement 36, zum Beispiel einem Schlauch, mit einem in verschiedene Arbeitspositionen einschwenkbaren Lieferrohr 37 verbunden ist. Das Lieferrohr 37 ist dabei an einer Lieferrohrhalterung 53 befestigt, die über Parallelogrammschwingen 49 auf einem Schwenkweg S verlegbar ist. Außerdem weist das Rohrsystem 35, in das über ein Fadenlieferwerk 43 ein von einer Vorratsspule 44 abgezogene Hilfsfaden 45 eingespeist wird, im Eingangsbereich einen Saugluftanschluß 39 auf, der über ein Ventil 41 definiert zuschaltbar ist. Des weiteren ist in diesem Bereich eine erste Fadentrennvorrichtung 42 in das Rohrsystem 35 eingeschaltet.16 are further operating elements in the piecing unit a frame opener 32, a pressure lever 33 and one Auxiliary thread transport device 34 installed. This Auxiliary thread transport device 34 consists essentially of a pipe system 35, which has a flexible connecting element 36, for example a hose, with one in different Working positions pivotable delivery tube 37 is connected. The delivery tube 37 is on a delivery tube holder 53 attached, the parallelogram 49 on a Swivel path S can be laid. In addition, the pipe system 35 into the one of a supply spool via a yarn feed mechanism 43 44 withdrawn auxiliary thread 45 is fed in Entrance area on a suction air connection 39, which via a Valve 41 can be activated in a defined manner. Furthermore, this is Area a first thread cutting device 42 in the pipe system 35 switched on.

    Der Endbereich der Hilfsfadentransportvorrichtung 34, das heißt, der Bereich in dem die Lieferrohrhalterung 53 angeordnet ist, ist in den Figuren 3 bis 6 näher dargestellt.The end portion of the auxiliary thread transport device 34, the That is, the area in which the delivery pipe bracket 53 is arranged is shown in more detail in Figures 3 to 6.

    Die Lieferrohrhalterung 53 ist vorzugsweise als Blechbiegeteil ausgeführt und weist abgewinkelte Lagervorsprünge 58, 59 beziehungsweise 60, 61 sowie Lageransätze 62, 63 auf. Über die Lageransätze 62, 63 ist die Lieferrohrhalterung 53 mit den Parallelogrammlenkern 49 verbunden und entlang des in Fig. 2 dargestellten Schwenkweges S in verschiedenen Arbeitsstellungen I-III positionierbar. Der in Fadenlaufrichtung vorn liegende Lagervorsprung 59 weist außerdem einen horizontalen Schenkel 59' auf, an dem ein Fadenrückhalteelement 66 befestigt ist.The delivery pipe holder 53 is preferably a bent sheet metal part executed and has angled bearing projections 58, 59 or 60, 61 and bearing approaches 62, 63. About the Bearing approaches 62, 63 is the delivery pipe bracket 53 with the Parallelogram links 49 connected and along the in Fig. 2nd shown swivel path S in different working positions I-III positionable. The one in front in the direction of the thread Bearing projection 59 also has a horizontal leg 59 'on which a thread retention element 66 is attached.

    Zwischen den Lagervorsprüngen 58, 59 ist in einer Schwenkachse 50 ein Fadenleitblech 54 der Fadenverlegeeinrichtung 51 drehbar gelagert. Das Fadenleitblech 54 wird durch eine federbeaufschlagte Rückstelleinrichtung 52 in der in Fig. 4 dargestellten Ausgangsstellung gehalten und kann über ein pneumatisches Schubkolbengetriebe 55 in Richtung FR verschwenkt werden. Zur Begrenzung des Ausschwenkweges besitzt das Fadenleitblech 54 einen Anschlag 67, der im ausgeschwenktem Zustand am Spulenrahmen 9 anliegt. Zwischen der Kolbenstange des Pneumatikzylinders 55 und einer Versteifungsplatte 68 des Fadenleitbleches 54 ist ein Kraftbegrenzungselement 69, vorzugsweise in Form einer Schraubenfeder, eingeschaltet. Am Fadenleitblech 54 ist weiter ein in seiner Kontur auf die Leerhülse 10 angepaßter Fadenführungsansatz 80 befestigt.Between the bearing projections 58, 59 is in a pivot axis 50 a thread guide plate 54 of the thread laying device 51 is rotatable stored. The thread guide plate 54 is by a spring-loaded resetting device 52 in FIG. 4 shown starting position held and can over a pneumatic thrust piston gear 55 pivoted towards FR become. This has to limit the swiveling path Thread guide plate 54 has a stop 67 which is swung out Condition on the coil frame 9 is present. Between the piston rod of the pneumatic cylinder 55 and a stiffening plate 68 of the Thread guide plate 54 is a force limiting element 69, preferably in the form of a coil spring. At the Thread guide plate 54 is further in its contour on the Empty sleeve 10 adapted thread guide approach 80 attached.

    Wie aus Fig. 3 weiter ersichtlich, ist das Fadenlieferrohr 37 in seinem Endbereich in Rohrstränge 37' und 37'' aufgeteilt, die an eine gemeinsame Saugluftquelle 71 angeschlossen sind. Im Bereich des Lieferrohrstranges 37' ist außerdem eine Injektoreinrichtung 72 angeordnet, die über ein Ventil 40 an eine Druckluftleitung 38 anschließbar ist. Der Durchgang der Lieferrohrstränge 37' und 37'' ist durch einen Schneid- und Verschlußschieber 73 einer Fadenschneideinrichtung 48 gezielt verschließbar. Das heißt, der Schneid- und Verschlußschieber 73 weist frontseitig eine Schneidkante 74 zum Trennen eines in den Lieferrohrstrang 37 einlaufenden Fadens 7 und im Abstand der Mündungsstränge dahinter eine Lochblende 75 auf, die während des Schneidvorganges den Lieferrohrstrang 37'' automatisch an die Saugluftquelle 71 anschließt. Der Lieferrohrstrang 37'' ist folglich während des Schneidvorganges der Fadenschneideinrichtung 48 geöffnet und während der restlichen Zeit des Anspinnzyklus geschlossen.As can also be seen from FIG. 3, the thread delivery tube 37 divided into pipe strings 37 'and 37' 'in its end area, which are connected to a common suction air source 71. in the Area of the delivery pipe string 37 'is also one Injector device 72 arranged via a valve 40 a compressed air line 38 can be connected. The passage of the Delivery tube strings 37 'and 37' 'is by a cutting and Locking slide 73 of a thread cutting device 48 targeted lockable. That is, the cutting and locking slide 73 has a cutting edge 74 on the front for separating one into the Supply pipe string 37 incoming thread 7 and at a distance from Muzzle strands behind a pinhole 75, which during of the cutting process the delivery pipe string 37 '' automatically the suction air source 71 connects. The delivery pipe string is 37 '' consequently during the cutting process Thread cutter 48 opened and during the rest Closed cycle time.

    Die erfindungsgemäße Vorrichtung arbeitet im einzelnen wie folgt:The device according to the invention works in detail as follows:

    Sobald das Anspinnaggregat 16 feststellt beziehungsweise über das Datenübertragungssystem der OE-Spinnmaschine 1 mitgeteilt bekommt, daß an einer Arbeitsstelle 2 ein Eingreifen erforderlich ist, läuft das Anspinnaggregat 16 zu dieser Arbeitsstelle und positioniert sich dort. Anschließend stellt das Anspinnaggregat 16 entweder selbst fest, welcher Fehler an dieser Arbeitsstelle vorliegt, zum Beispiel "normaler" Fadenbruch, wechselbedürftige Kreuzspule etc. oder der Steuerung des Anspinnaggregates 16 wird über das Datenübertragungssystem der OE-Spinnmaschine der Grund der Anforderung mitgeteilt.As soon as the piecing unit 16 detects or over the data transmission system of the OE spinning machine 1 communicated gets that an intervention at a job 2 is necessary, the piecing unit 16 runs to this Job and positions itself there. Then poses the piecing unit 16 either itself determines which error this job exists, for example "more normal" Thread break, cross-wound bobbin etc., or the Control of the piecing unit 16 is via the OE spinning machine data transmission system the reason of Request communicated.

    Je nach vorliegendem Fall werden dann die entsprechenden Programme für die unterschiedlichen Arbeitsabläufe gestartet.Depending on the case at hand, the corresponding ones Programs started for the different work processes.

    Wenn beispielsweise eine Kreuzspule 8, die ihren maximalen Durchmesser erreicht hat, gegen eine Leerhülse 10 gewechselt werden muß, laufen folgende Programmschritte ab:For example, if a cheese 8, its maximum Has reached diameter, exchanged for an empty sleeve 10 the following program steps are carried out:

    Zunächst schwenkt die beispielsweise als Teleskopgreifer ausgebildete Hülsengreifeinrichtung 46 in die in Fig. 2 dargestellte Lage und fährt das Greiferelement 47 in Richtung der Hülsen- und Spulentransporteinrichtung 12 aus. Das endseitig angeordnete Greiferelement 47 schiebt sich über die in der Hülsen- und Spulentransporteinrichtung 12 befindliche Leerhülse 10, die anschließend beim Einfahren der Hülsengreifeinrichtung 46 in eine obere Stellung mit angehoben wird. Daraufhin beaufschlagt der Rahmenöffner 32 einen am Arm des Spulenrahmens 9 angeordneten Führungsansatz 57, das heißt, der Arm des Spulenrahmens 9 wird nach außen gedrückt, so daß die Kreuzspule 8 freigegeben wird und durch den nach vorne schwenkenden Ausstoß- und Antriebsarm 22 des Anspinnaggregates 16 in die Hülsen- und Spulentransporteinrichtung 12 überführt werden kann. Die endseitig am Antriebsarm 22 angeordnete Antriebsrolle 23 ist während dieser Aktion, um Beschädigungen an der Kreuzspulenoberfläche zu vermeiden, von ihrem Antrieb abgekuppelt.First, it pivots, for example as a telescopic gripper formed sleeve gripping device 46 in the in Fig. 2nd shown position and moves the gripper element 47 in the direction the sleeve and coil transport device 12. The gripper element 47 arranged at the end is pushed over the located in the sleeve and coil transport device 12 Empty sleeve 10, which then when retracting the The sleeve gripping device 46 is raised to an upper position becomes. The frame opener 32 then acts on one arm of the coil frame 9 arranged guide projection 57, that is, the arm of the coil frame 9 is pressed outward so that the cheese 8 is released and by the forward pivoting ejection and drive arm 22 of the piecing unit 16 transferred into the sleeve and coil transport device 12 can be. The one arranged at the end on the drive arm 22 Drive roller 23 is damaged during this action to avoid on the package surface from its drive uncoupled.

    Der Rahmenöffner 32 sowie ein auf dem Führungsansatz 57 aufliegender Druckhebel 33 schwenken den Spulenrahmen 9 in eine Leerhülsenübergabeposition, die sich in einem vorbestimmten Abstand oberhalb der Spultrommel 11 befindet. In dieser vorbestimmten Position übergibt das Greiferelement 47 die Leerhülse an den Spulenrahmen 9. Die ordnungsgemäße Übergabe der Leerhülse 10 wird dabei über einen am Antriebsarm 22 angeordneten Drehwinkelgeber 24 überwacht, der eine fehlende oder unkorrekt eingelegte Leerhülse 10 durch eine vom SOLL-Wert abweichende Winkelstellung des Antriebsarms 22 als Fehler erkennt.The frame opener 32 and one on the guide shoulder 57 overlying pressure lever 33 pivot the coil frame 9 in a Empty sleeve transfer position, which is in a predetermined Distance above the winding drum 11 is located. In this the gripper element 47 transfers the predetermined position Empty sleeve to the spool frame 9. The proper handover the empty sleeve 10 is thereby via a on the drive arm 22nd arranged rotary encoder 24 monitors the missing or incorrectly inserted empty sleeve 10 due to a of the SET value deviating angular position of the drive arm 22 as an error recognizes.

    Zeitgleich mit dem vorbeschriebenen Wechselvorgang wird auch der Anspinnzyklus gestartet.At the same time as the change process described above the piecing cycle started.

    Dabei wird zunächst durch das Fadenlieferwerk 43 von der Vorratsspule 44 ein Hilfsfaden 45 abgezogen und innerhalb der Hilfsfadentransporteinrichtung 34 bis an die Mündung des Lieferrohres 37 gefördert. Innerhalb des Rohrsystemes 35 der Hilfsfadentransporteinrichtung 34 wird der Hilfsfaden 45 dabei pneumatisch, zum Beispiel mittels einer im Bereich des Druckluftanschluß 38 angeordneten Injektoreinrichtung 72 transportiert.First of all, the yarn feed mechanism 43 moves from the Supply spool 44 an auxiliary thread 45 is withdrawn and within the Auxiliary thread transport device 34 to the mouth of the Delivery tube 37 promoted. Within the pipe system 35 the Auxiliary thread transport device 34 becomes the auxiliary thread 45 pneumatic, for example by means of a Compressed air connection 38 arranged injector 72 transported.

    Das Lieferrohr 37 befindet sich zu diesem Zeitpunkt in seiner hinteren Arbeitsposition I, in der der Mündungsbereich des Lieferrohres 37 in unmittelbarer Nähe des Ansaugschlitzes der Fadensuchdüse 21 des Anspinnaggregates 16 steht. Die Fadensuchdüse 21 befindet sich dabei in einer Parkstellung, in der die anderen im Anspinnaggregat angeordneten Bedienelemente nicht behindert werden. Das über die Hilfsfadentransporteinrichtung 34 herangelieferte, aus der Mündung des Lieferrohres 37 austretende Ende des Hilfsfaden 45 gerät sofort in den Wirkungsbereich der Fadensuchdüse 21 und wird in diese eingesaugt. Anschließend schwenkt das Lieferrohr 37 in eine zweite, aus Gründen der besseren Übersichtlichkeit nicht dargestellte, Arbeitsposition II.The delivery pipe 37 is at this point in time rear working position I, in which the mouth area of the Delivery tube 37 in the immediate vicinity of the suction slot Thread search nozzle 21 of piecing unit 16 stands. The Thread search nozzle 21 is in a park position in the other control elements arranged in the piecing unit not be hindered. That about the Auxiliary thread transport device 34 delivered from the Mouth of the delivery tube 37 emerging end of the auxiliary thread 45 gets immediately into the effective range of the thread search nozzle 21 and is sucked into it. The delivery pipe then swivels 37 in a second, for reasons of better clarity not shown, working position II.

    In dieser zweiten Arbeitsposition befindet sich die Mündung des Lieferrohres 37 etwa in der oberen Stellung des Schwenkweges S des Lieferrohres 37. Während des Schwenkvorganges wird durch die Hilfsfadentransporteinrichtung gerade soviel Hilfsfaden 45 nachgeliefert, wie benötigt wird, um zwischen der Mündung des Lieferrohres 37 und der Fadensuchdüse 21 einen Hilfsfadenstrang 45 zu spannen.The mouth of the is in this second working position Delivery tube 37 approximately in the upper position of the swivel path S. of the delivery pipe 37. During the swiveling process, the auxiliary thread transport device just as much auxiliary thread 45 replenished as needed to between the mouth of the Delivery tube 37 and the thread search nozzle 21 an auxiliary thread strand 45 to span.

    Der zwischen der Mündung des Lieferrohrs und der Fadensuchdüse 21 gespannte Hilfsfaden 45 wird jetzt von den Fadenanspinnorganen des Anspinnaggregates 16 zum Neuanspinnen benutzt. Das heißt, der Hilfsfaden 45 wird zunächst von einem Fadenfangblech 25 positioniert und vom Fadeneinzieher 26 an den Fadenzubringer 27 übergeben. Anschließend wird der zwischen der Zubringerzange 28 des Fadenzubringers 27 gefaßte Hilfsfaden 45 mittels der Fadentrenneinrichtung 29 gekappt und das abgetrennte Fadenende von der Fadensuchdüse 21 abgesaugt. Die Hilfsfadentransporteinrichtung wird auf Saugluft umgeschaltet und der Hilfsfaden 45 innerhalb des Rohrsystems 35 durch die Fadentrenneinrichtung 42 geschnitten. Das in der Zubringerzange 28 des Fadenzubringers 27 gefaßte Hilfsfadenende wird, wie üblich, vorbereitet, durch den nach vorne schwenkenden Fadenzubringer 27 zur Spinnbox 3 überführt und im Spinnrotor an einen aus Einzelfasern gebildeten Faserring angelegt.The one between the mouth of the delivery tube and the thread search nozzle 21 tensioned auxiliary thread 45 is now from the Thread piecing organs of piecing unit 16 for re-piecing used. That is, the auxiliary thread 45 is first of all Thread catcher 25 positioned and from the thread puller 26 to the Hand thread feeder 27. Then the between the Feeder pliers 28 of the thread feeder 27 auxiliary thread 45 cut by means of the thread separating device 29 and that separated thread end sucked from the thread search nozzle 21. The Auxiliary thread transport device is switched to suction air and the auxiliary thread 45 within the pipe system 35 through the Thread cutting device 42 cut. That in the feed tongs 28 of the thread feeder 27 is gripped auxiliary thread how usual, prepared, by the swiveling forward Thread feeder 27 transferred to spinning box 3 and in the spinning rotor applied to a fiber ring formed from individual fibers.

    Der neu ersponnene Faden wird zusammen mit dem Hilfsfaden 45 über die Fadenabzugseinrichtung 30, 31 abgezogen und in das Lieferrohr 37 eingesaugt.The newly spun thread together with the auxiliary thread 45 withdrawn via the thread take-off device 30, 31 and into the Delivery tube 37 sucked in.

    Wie in den Fig. 3 und 4 angedeutet, legt das in die Arbeitsposition III geschwenkte Lieferrohr 37 anschließend den Faden 7 an die Leerhülse 10 an. Die Leerhülse 10 ist dabei zwischen Hülsentellern 78 des Spulenrahmens 9 gehalten, der zu diesem Zeitpunkt in einer Stellung beabstandet oberhalb der umlaufenden Spultrommel 11 steht. Die Leerhülse wird über die Antriebswelle 23 des Antriebsarms 22 beaufschlagt und läuft in Richtung A um.As indicated in FIGS. 3 and 4, that puts in the Working position III pivoted delivery tube 37 then the Thread 7 on the empty tube 10. The empty sleeve 10 is there held between sleeve plates 78 of the coil frame 9, the to this time in a position spaced above the revolving winding drum 11 is. The empty tube is over the Drive shaft 23 of the drive arm 22 is loaded and runs in Direction A around.

    Einer der umlaufenden Hülsenteller 78 weist eine Fadenfangeinrichtung 79 auf. Diese Fadenfangeinrichtung 79 besteht beispielsweise aus schwalbenschwanzähnlich hinterschnittenen Mitnahmenuten im Bereich des Tellerrandes. Die an der Lieferrohrhalterung 53 angeordnete Fadenverlegeeinrichtung 51 führt den in die Mündung des Lieferrohrs 37 einlaufenden Faden dabei derart über den Hülsenteller 78, daß er von den am Hülsenteller angeordneten, umlaufenden Mitnahmenuten 79 erfaßt werden kann.One of the rotating sleeve plates 78 has one Thread catcher 79. This thread catching device 79 consists of, for example, dovetail-like undercut driving grooves in the area of the plate. The arranged on the delivery pipe bracket 53 Thread laying device 51 leads into the mouth of the Delivery tube 37 incoming thread in such a way over the Sleeve plate 78, that it is arranged on the sleeve plate, circumferential driving grooves 79 can be detected.

    Die Fadenverlegeeinrichtung 51 weist zu diesem Zweck ein einschwenkbares Fadenleitblech 54 auf. Das über einen pneumatischen Antrieb 55 beaufschlagbare Fadenleitblech 54 besitzt eine Fadenführungskontur 70, die eine definierte Führung des Fadens 7 ermöglicht.The thread laying device 51 has for this purpose retractable thread guide plate 54. That about you pneumatic drive 55 thread guide plate 54 that can be acted upon has a thread guide contour 70, which has a defined guide of the thread 7 allows.

    Wie insbesondere aus Fig. 4 und 6 ersichtlich, ist das Fadenleitblech 54 in einer Schwenkachse 50 begrenzt drehbar gelagert und weist eine etwa L-förmig ausgebildete Fadenführungskontur 70 mit einer Fadenführungskerbe 81 und einem Fadenverlegeschlitz 82 auf.As can be seen in particular from FIGS. 4 and 6, this is Thread guide plate 54 can be rotated to a limited extent in a pivot axis 50 stored and has an approximately L-shaped Thread guide contour 70 with a thread guide notch 81 and a thread laying slot 82.

    Wie vorstehend bereits kurz erwähnt, läuft der Faden 7 zu Beginn des Anlegevorgangs in den Leitungsstrang 37' des Lieferrohres 37 ein, das zu diesem Zeitpunkt in der Arbeitsstellung III positioniert ist (Fig. 3). Der Faden 7 liegt dabei, wie in Fig. 4 angedeutet, in der Fadenführungskerbe 81 der Fadenführungskontur 70. Durch entsprechendes Ansteuern des Pneumatikzylinders 55 wird das Fadenleitblech 54 und damit die Fadenführungskontur 70 in Richtung FR verschwenkt, wobei der Schwenkweg durch Anlage des Anschlages 67 am Rahmenarm 9 begrenzt ist. Der in der Fadenführungskerbe 81 geführte Faden wird dabei derart über den Hülsenteller 78 gespannt, daß er von der im Hülsenteller 78 angeordneten Fadenfangeinrichtung 79 erfaßt wird. Die von der Antriebsrolle 23 am Antriebsarm 22 in Richtung A beaufschlagte Leerhülse 10 nimmt den Hülsenteller 78 mit, so daß der gefaßte Faden in Richtung A nach unten verlagert wird. Der Faden 7 gleitet dabei aus der Fadenführungskerbe 81 und gelangt in den Fadenverlegungsschlitz 82. Gleichzeitig wird mittels der Fadentrenneinrichtung 48 der in den Leitungstrang 37' einlaufende Faden 7 gekappt. Der im Fadenverlegeschlitz 82 geführte Faden wird auf der Leerhülse 10 zu einer Reservewicklung 83 aufgewickelt (siehe Fig. 6) und anschließend der Spulenrahmen mit der Leerhülse auf die Spultrommel 11 abgesenkt.As already briefly mentioned above, the thread 7 closes Start of the application process in the wiring harness 37 'of the Delivery tube 37, which at this time in the Working position III is positioned (Fig. 3). The thread 7 lies, as indicated in Fig. 4, in the Thread guide notch 81 of thread guide contour 70 Appropriate control of the pneumatic cylinder 55 will Thread guide plate 54 and thus the thread guide contour 70 in the direction FR pivoted, the pivoting path through the installation of the Stop 67 on the frame arm 9 is limited. The Indian Thread guide notch 81 is guided over the thread Sleeve plate 78 excited that it in the sleeve plate 78th arranged thread catcher 79 is detected. The of the Drive roller 23 acted on drive arm 22 in direction A. Empty sleeve 10 takes the sleeve plate 78, so that the captured Thread is shifted downwards in direction A. The thread 7 slides out of the thread guide notch 81 and gets into the Thread laying slot 82. At the same time, the Thread cutting device 48 which is in the line strand 37 ' incoming thread 7 cut. The one in the thread laying slot 82 guided thread becomes an on the empty tube 10 Reserve winding 83 wound (see Fig. 6) and then the coil frame with the empty tube onto the winding drum 11 lowered.

    Um zu vermeiden, daß das geschnittene Fadenende undefiniert herumschleudert, weist das Lieferrohr 37 im Mündungsbereich einen zweiten Leitungsstrang 37'' auf. Beim Trennen des in den Leitungsstrang 37' einlaufenden Faden 7 wird automatisch umgeschaltet, das heißt, der Leitungsstrang 37'' wird an die Unterdruckquelle 71 angeschlossen. Das Umschalten erfolgt über die Fadentrenneinrichtung 48, deren Schneid- und Verschlußschieber 73 eine vordere Schneidkante 74 sowie eine im Abstand dahinter angeordnete Lochblende 75 aufweist. Die Anordnung ist dabei so gewählt, daß beim Schneiden des in den Leitungsstrang 37' einlaufenden Fadens 7 gleichzeitig der Leitungsstrang 37'', der im allgemeinen verschlossen ist, an die Saugluftquelle 71 angeschlossen wird. Auf diese Weise wird das im Leitungsstrang 37' geschnittene Fadenende sofort in den Leitungsstrang 37'' eingesaugt und damit fixiert. Zur Führung des geschnittenen Fadenendes ist außerdem im Rücken der Fadenführungskontur 70 ein Fadenführungsansatz 80 vorgesehen, dessen Leitkante an die Form der Leerhülse 10 angepaßt ist.To avoid that the cut thread end undefined hurls around, the delivery pipe 37 has in the mouth area a second wiring harness 37 ''. When separating the in the Wire harness 37 'incoming thread 7 will automatically switched, that is, the wiring harness 37 '' to the Vacuum source 71 connected. Switching takes place via the thread cutting device 48, the cutting and Locking slide 73 a front cutting edge 74 and one in Has spaced aperture plate 75 arranged behind. The Arrangement is chosen so that when cutting the in Line 37 'incoming thread 7 at the same time Harness 37 '', which is generally closed the suction air source 71 is connected. That way the thread end cut in the cable strand 37 'immediately into the Cable harness 37 '' sucked in and thus fixed. For guidance the cut thread end is also in the back of the Thread guide contour 70 a thread guide approach 80 is provided, whose leading edge is adapted to the shape of the empty sleeve 10.

    Um jederzeit eine reproduzierbare Stellung des Lieferrohres 37 bezüglich der im Spulenrahmen 9 gehaltenen Leerhülse zu gewährleisten, ist am Spulenrahmen 9 ein gabelartiger Anschlag 77 vorgesehen, in den eine an der Lieferrohrhaltung 53 angeordnete Positionierhilfe 76 beim Einschwenken des Lieferrohres 37 in die Arbeitsstellung III eingreift.To ensure a reproducible position of the delivery pipe 37 at all times with respect to the empty tube held in the coil frame 9 ensure is a fork-like stop on the coil frame 9 77 provided, in which one on the delivery pipe holder 53 arranged positioning aid 76 when pivoting the Delivery tube 37 engages in working position III.

    Nach dem Aufbringen der Reservewicklung 83 wird das Fadenleitblech 54 in seine Ausgangsstellung zurückgeschwenkt. After the reserve winding 83 has been applied, this becomes Thread guide plate 54 pivoted back into its starting position.

    Der Faden 7 gleitet dabei, an dem in Fadenlaufrichtung R vor dem Fadenleitblech 54 angeordneten Fadenrückhalteelement 66 abgestützt, aus dem Fadenverlegeschlitz 82. Die in Richtung A umlaufende Leerhülse 10 zieht den Faden am Fadenrückhalteelement 66 nach unten, so daß er von der Fadenverlegeeinrichtung 51 frei kommt und an die (nicht dargestellte) Changiereinrichtung der Spulstelle übergeben werden kann. Der Wechsel-/Anspinnzyklus der Serviceeinrichtung ist damit beendet, das heißt, der Bedienfall Wechsel Kreuzspule/Leerhülse ist abgeschlossen.The thread 7 slides in front of it in the thread running direction R. the thread retention element 66 arranged on the thread guide plate 54 supported, from the thread laying slot 82. The direction A circumferential empty tube 10 pulls the thread Thread retention element 66 down so that it from the Thread laying device 51 comes free and to the (not shown) transfer device of the winding unit can be. The changeover / piecing cycle of the service facility is finished, that is, the change of operation Cross-wound bobbin / empty tube is completed.

    Die Hilfsfadentransporteinrichtung 34 wird in ihre Ausgangsstellung zurückgeschwenkt; das Anspinnaggregat 16 ist für einen neuen Bedienfall bereit.The auxiliary thread transport device 34 is in its initial position swung back; the piecing unit 16 is for a new one Operation ready.

    Claims (10)

    1. Textile machine manufacturing cross-wound bobbins (8), in particular an open-end spinning machine (1), having an attendance device, which is displaceable along and where necessary positionable at the operating points of the textile machine and has a piecing unit (16), which comprises an auxiliary yarn conveying apparatus (34) for providing and disposing of an auxiliary yarn (45) used for the piecing process, wherein by means of a pneumatically operable yarn displacement device (51), which is disposed on a delivery tube mounting (53) and comprises a pivotally supported yarn guide plate (54), the pieced yarn held in a delivery tube (37) is transferable into the region of a yarn catching device (79) disposed on a tube plate (76),
      characterised in
      that, in addition to the yarn guide plate (54), a yarn retaining element (66) is disposed on the yarn displacement device (51),
      that the yarn guide plate (54) possesses a yarn guiding contour (70) having a yarn guiding notch (81) and a yarn displacement slot (82), wherein the yarn guiding notch (81) is arranged and designed in such a way that the yarn (7) running into the delivery tube (37) is conveyed during the swivelling motion of the yarn guide plate (54) in a defined manner over the tube plate (78) and in the process is grasped by the yarn catching device (79) of the latter and through rotation of empty tube (10) and tube plate (78) passes into the yarn displacement slot (82), the shape and arrangement of which ensures that the yarn (7) grasped by the yarn catching device (79) builds a bunch (83) on the empty tube (10).
    2. Textile machine manufacturing cross-wound bobbins according to claim 1, characterised in that disposed on the yarn guide plate (54) is a stop (67), the application of which against the creel (9) guarantees an exact axial alignment of the yarn guide plate (54) relative to the empty tube (10) held in the creel (9).
    3. Textile machine manufacturing cross-wound bobbins according to claim 1, characterised in that the yarn retaining element (66) is disposed, viewed in yarn running direction (R), upstream of the yarn guide plate (54) and laterally offset relative to the yarn guide plate in such a way that the yarn displacement slot (82) in the original position of the yarn guide plate (54) lies in the shadow of the yarn retaining element (66).
    4. Textile machine manufacturing cross-wound bobbins according to one or more of the preceding claims, characterised in that the yarn guide plate (54) is supported so as to be rotatable about a horizontal swivelling axis (50), is operable by means of a pneumatic sliding piston mechanism (55) and has a spring force-operated resetting device (52) disposed in the region of the swivelling axis (50).
    5. Textile machine manufacturing cross-wound bobbins according to claim 4, characterised in that a force-limiting element (69) is disposed between the sliding piston mechanism (55) and the yarn guide plate (54).
    6. Textile machine manufacturing cross-wound bobbins according to claim 5, characterised in that the force-limiting element (69) takes the form of a helical spring.
    7. Textile machine manufacturing cross-wound bobbins according to claim 1, characterised in that the delivery tube (37) of the auxiliary yarn conveying apparatus (34) comprises in the region of the delivery tube mounting (53) a compressed-air connection (38) with injector device (72) as well as a yarn cutting apparatus (48).
    8. Textile machine manufacturing cross-wound bobbins according to one or more of the preceding claims, characterised in that the delivery tube (37) has a bifurcated mouth region, wherein in the region of spaced-apart mouth branches (37', 37'') a cutting and closing bar (73) of a yarn cutting device (48) is displaceably guided.
    9. Textile machine manufacturing cross-wound bobbins according to claim 8, characterised in that the cutting and closing bar (73) has, at the front, a cutting edge (74) as well as, at a distance behind the latter, a perforated screen (75).
    10. Textile machine manufacturing cross-wound bobbins according to one or more of the preceding claims, characterised in that disposed on the delivery tube mounting (53) is a positioning aid (76) corresponding with a stop (77) on the creel (9).
    EP95113894A 1994-12-09 1995-09-05 Textile machine for producing crosswound bobbins Expired - Lifetime EP0716169B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE4443818 1994-12-09
    DE4443818A DE4443818B4 (en) 1994-12-09 1994-12-09 Cheese making textile machine

    Publications (3)

    Publication Number Publication Date
    EP0716169A2 EP0716169A2 (en) 1996-06-12
    EP0716169A3 EP0716169A3 (en) 1996-11-06
    EP0716169B1 true EP0716169B1 (en) 2000-05-31

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    EP95113894A Expired - Lifetime EP0716169B1 (en) 1994-12-09 1995-09-05 Textile machine for producing crosswound bobbins

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    US (1) US5634602A (en)
    EP (1) EP0716169B1 (en)
    JP (1) JPH08209466A (en)
    DE (2) DE4443818B4 (en)

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    CN101372775B (en) * 2007-08-25 2012-05-30 欧瑞康纺织有限及两合公司 Textile machine for producing across winding reel

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    CN101372775B (en) * 2007-08-25 2012-05-30 欧瑞康纺织有限及两合公司 Textile machine for producing across winding reel

    Also Published As

    Publication number Publication date
    DE59508420D1 (en) 2000-07-06
    US5634602A (en) 1997-06-03
    JPH08209466A (en) 1996-08-13
    DE4443818B4 (en) 2005-08-18
    EP0716169A2 (en) 1996-06-12
    DE4443818A1 (en) 1996-06-13
    EP0716169A3 (en) 1996-11-06

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