EP0079926B1 - Device for joining the ends of a yarn being wound - Google Patents

Device for joining the ends of a yarn being wound Download PDF

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Publication number
EP0079926B1
EP0079926B1 EP19820901782 EP82901782A EP0079926B1 EP 0079926 B1 EP0079926 B1 EP 0079926B1 EP 19820901782 EP19820901782 EP 19820901782 EP 82901782 A EP82901782 A EP 82901782A EP 0079926 B1 EP0079926 B1 EP 0079926B1
Authority
EP
European Patent Office
Prior art keywords
duct
yarn
thread
fiber
housing
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
Application number
EP19820901782
Other languages
German (de)
French (fr)
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EP0079926A1 (en
Inventor
Gerhard Egbers
Peter Artzt
Karl Brosch
Hans Rottmayr
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 Spinnereimaschinenbau AG
Original Assignee
Schubert und Salzer Maschinenfabrik 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
Priority claimed from DE19813121866 external-priority patent/DE3121866A1/en
Priority claimed from DE19823214352 external-priority patent/DE3214352A1/en
Application filed by Schubert und Salzer Maschinenfabrik AG filed Critical Schubert und Salzer Maschinenfabrik AG
Publication of EP0079926A1 publication Critical patent/EP0079926A1/en
Application granted granted Critical
Publication of EP0079926B1 publication Critical patent/EP0079926B1/en
Expired 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
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing

Definitions

  • the invention relates to a device for spinning a winder yarn, with a pair of delivery rollers, a hollow spindle with binding thread bobbin arranged downstream of the latter, between the delivery roller pair and the hollow spindle, which housing is movable relative to the hollow spindle and has a main channel into which a fiber suction channel opens, a pair of pulling rollers and one Take-up device.
  • a device of the type mentioned is already known (GB-A-20 76 863).
  • the housing present between the pair of delivery rollers and the hollow spindle is part of a closure member which is telescopically displaceable on a housing concentrically surrounding the hollow spindle with the binding thread bobbin.
  • a device which is constructed in such a way that two suction pipes are used (DE-A-27 53 349).
  • a suction pipe can be closed via a slide.
  • a spun fiber bundle is pulled into the suction pipe to remedy a broken thread.
  • the wrapping yarn is returned to a location between the pair of delivery rollers and the hollow spindle and sucked into the other suction tube.
  • the suction air flow in the first suction pipe is interrupted with the help of a slide. Now the hollow spindle is put into operation, which has the effect that the wrapping yarn located in the second suction tube and the binding thread are withdrawn from it and thereby form a thread balloon.
  • the spun fiber bundle is released by the suction air atom, which is interrupted in the first suction pipe, and passes through an opening into the interior of a housing.
  • the bundle of spun fibers is grasped by the thread balloon formed by the binding thread and the wrapping yarn and twisted with both.
  • a housing which encloses the binding thread spool. This results in a structural and spatial effort, and access to the binding thread spool is also made more difficult.
  • the prior art also includes another device for spinning on a winding thread, the spinning after a thread break being carried out by means of a slot by inserting the thread behind the pair of output rollers (DE-A-29 30 798).
  • a thread holding device is required in the area of the pair of output rollers, a switch-on device for thread take-off also having to be used, which comes into operation when the winding spindle has reached operating speed.
  • Precautions are also required to allow the thread to enter the exit roller pair and the take-off roller pair.
  • Another disadvantage here is the high level of design and construction costs.
  • the object of the present invention is to provide a device which, with a simple and compact construction, enables reliable piecing without thereby obstructing access to the binding thread spool.
  • a closure member which can interrupt the suction effect of the fiber suction channel is movably mounted in the housing and a thread suction channel opening into the main channel is arranged behind the mouth of the fiber suction channel in the fiber running direction, and in that the housing at the lower end of the main channel has an airtight seal against the mouth of the hollow spindle.
  • the closure member can be designed, for example, as a slide, flap, screen or hose clamp.
  • the closure member came to be movably mounted in the housing at the mouth of the fiber suction channel in the main channel.
  • the closure member can be designed as a tube.
  • the tube can be rotatably mounted in the housing transversely to the main channel about its longitudinal axis and can be provided with cutouts in the wall.
  • the fiber suction channel and the main channel can be closed in the desired sense simply by rotating the tube.
  • a swirl nozzle acting in the main channel can be arranged in the housing in the fiber running direction behind the mouth of the thread suction channel. This swirl nozzle helps to improve the piecing process after a thread break.
  • the tube in the housing can be arranged axially to the main channel in this, provided in the recessed wall with covers for closing off the fiber suction channel and be rotatable about its longitudinal axis. This also results in a functional closing of the respective channels by good rotation of the tube, with good use of space.
  • the covers for the fiber suction channel can be offset by 90 ° with respect to the covers for the thread suction channel, the tube being rotatable through 90 ° about its longitudinal axis.
  • the tube in the housing can also be arranged axially to the main channel in the latter and be movable in the longitudinal direction.
  • the fiber suction channel can lead directly and the thread suction channel into a suction channel for fibers and threads via a long thread guide tube.
  • This long thread guide tube can be designed as a loop.
  • shut-off device can be designed, for example, as a slide, the slide being provided with at least one through opening and being movable into at least one open or closed position.
  • a sieve is arranged in the thread suction channel and that the slide is provided with two through openings in front of and behind the sieve.
  • a further embodiment of the invention which is particularly suitable for coarser yarns, is characterized in that the thread suction channel is arranged on the side of the main channel opposite the mouth of the fiber suction channel and that in addition a closure member designed as a slide crosswise upstream of the mouths of the fiber suction channel and the thread suction channel into the main channel is movable.
  • Another advantage is the longer, free yarn length for fiber attachment during piecing.
  • the main channel can be sealed and sealed by the slide, which advantageously increases the negative pressure on the hollow spindle and thus facilitates the suctioning of the thread end.
  • the slider can have a lip which, in the retracted position of the slider in cooperation with a wall section of the thread suction channel, narrows the cross section of this thread suction channel to a narrow passage that resiliently retains the suctioned thread.
  • the slide can consist of a slidable sleeve in a bore of the housing, the front and back of which are closed and the wall of which is directed towards the mouths of the thread suction channel and the fiber suction channel, which results in a simple construction of the closure member.
  • the slide can be spring-loaded and can be locked in the position connecting the mouths of the thread suction channel and the fiber suction channel.
  • a closure member which can be interrupted by the suction effect of the fiber suction channel can be arranged at a distance from the mouth of the fiber suction channel and has a distance from the clamping line of the pair of delivery rollers which is greater than the length of the fibers to be processed.
  • the device shown in FIG. 1 for spinning a wrapping yarn has a pair of delivery rollers 1, a downstream wrapping spindle 2 designed as a hollow spindle with a binding thread spool, a pair of take-off rollers 3 and a winding device 4. Furthermore, a tangential belt drive 8 is provided for the winding spindle 2. Between the pair of delivery rollers 1 and the hollow spindle 2, a housing 5 is arranged, the interior of which via a Connection line 6 are connected to a suction channel 7.
  • the first embodiment of the invention shown in FIGS. 2 to 5 in different process stages has a main channel 14 in a housing 5, into which a fiber suction channel 9 and behind it a thread suction channel 10 open.
  • FIG. 2 shows the normal running of the fibers 11, which are solidified into yarn by issuing false twist by the winding thread, drawn off by the pair of draw-off rollers 3 according to FIG. 1 and wound onto the spool of the winding device 4.
  • This issuing of false twist and the deflection of the fibers 11 to the thread 12 can be carried out by a pneumatic swirl nozzle 16 arranged behind (under) the mouth of the thread suction channel 10 in the main channel 14 in the fiber running direction, which is switched on simultaneously with the closing of the fiber suction channel 9 and after the thread break has been eliminated is switched off again.
  • This swirl nozzle is shown in more detail in FIGS. 11 to 14.
  • the figures of this drawing do not show the preparation of the wrapping thread, which is also usually broken: the end of the broken wrapping thread is sought on the wrapping thread bobbin of the previously shut-off hollow spindle and fastened to a stationary machine part adjacent to the winding spindle 2. If the winding spindle 2 is then put into operation shortly before the fiber suction channel 9 is closed, the winding thread winds around the thread 12 and continues this winding when the thread is drawn off on the thread formed from the newly attached fibers.
  • the fiber suction channel 9 is opened again so that in the event of a further thread breakage, the fibers which are fed in and which are no longer spun can be sucked off immediately.
  • the thread suction channel is designed as a loop 10 ′, which leads into the uniform suction channel 7 for fibers and threads, which is also directly connected to the fiber suction channel 9.
  • the loop 10 ' is so long that it can accommodate the longest piece of thread that may be sucked in without its end protruding into the suction channel 7.
  • separate suction channels 7 and 7 ' can be provided, the fiber suction channel 9 leading into the suction channel 7 and via a line 10 "the thread suction channel into the suction channel 7' for threads.
  • the fiber suction duct 9 and the thread suction duct 10 are provided with through openings 42 and 43 as well as 44 and 45. Between these through openings there is a slide 40 with the two openings 46 and 47.
  • FIG. 8 shows the normal position, in which, according to item 1 of the slide 40, the thread suction duct 10 is separated from the suction draft: the full suction draft acts on the fiber suction duct 9, in order to be able to immediately vacuum any fibers that are no longer spun in the event of a thread break.
  • Fig. 9 shows the thread suction position, with the slide 40 in position 11.
  • the slide 40 is guided all the way to the right so that a connection between the channels 9 and 10 behind the screen 41 via the passages 42, 44 and 46, which are congruent. So that the space behind the screen 41 is connected to the suction.
  • the thread is sucked in and deposited on the sieve 41, from where it is drawn off again during the actual piecing process after the trigger has been switched on.
  • position 111 according to FIG. 10 is provided, in which the slide 40, which is moved completely to the left, connects the two openings 43 and 45 to one another by means of the handle 50 via the passage opening 47.
  • the space in front of the sieve 41 is thus connected to the suction train, with fiber residues deposited on the sieve being suctioned off.
  • FIGS. 2 to 5 The embodiment of the invention shown schematically in FIGS. 2 to 5 is explained in more detail constructively in FIGS. 11, 12 and 13. It can be seen here that a housing 5 is arranged in the intermediate space between the delivery roller pair 1 and the hollow spindle, in which the main channel 14 runs. Inside the housing 5 there is also the fiber suction duct 9 and the thread suction duct 10, both of which can be connected to the main duct 14 via a pipe 15.
  • This tube 15 is rotatably supported in the housing 5 in this embodiment, transverse to the main channel 14.
  • recesses 19 and 20 and terminations 21 and 22 are provided in the wall of the tube 15. It can be seen here how the two channels 9 and 10 can be closed in a functionally correct manner via the terminations 21 and 22.
  • the representation according to FIG. 11 corresponds to the schematic representation according to FIG. 2.
  • the swirl nozzle 16 is also located in the housing 5.
  • a seal 17 is provided below the housing 5.
  • the seal 17 is provided, which, according to FIG. 12, lies airtight on the upper mouth of the hollow spindle by pivoting the housing 5 in the direction of arrow I.
  • the housing 5 is designed to be tiltable, and the housing 5 can be tilted according to FIG. 1 about the axis 30.
  • a knurled handle 18 can be provided, which cooperates with a locking device 31.
  • the covers 28 of the tube 23 for the fiber suction duct 9 are offset by 90 ° with respect to the covers 27 for the thread suction duct 10.
  • the tube 23 is rotatable by 90 ° about its longitudinal axis. 17 shows the operating state: the fiber suction is open and the thread suction is closed, 0 ° being provided as the starting position.
  • the tube 26 is arranged in the housing 5 axially to the main channel 14 and movable in the longitudinal direction 11.
  • a functionally correct locking of the tube 26 can be effected by means of a latching 25, as is also used in the exemplary embodiment according to FIG. 15.
  • the handle 33 which is connected to the tube 26, the tube 2G in the housing 5 can be axially Move main channel 14 as desired.
  • the housing 5 is designed in such a way that an opening 51 of a fiber suction channel 9 runs through soft fibers 11 on both sides of a main channel 14, which are consolidated into yarn by giving false twist by a winding thread and an opening 54 of a thread suction channel 10 are arranged.
  • a bore 55 is arranged offset by 90 °.
  • a slide 60 is mounted horizontally displaceably as a closure member in the present embodiment.
  • This slide 60 consists of a sleeve which can slide in the bore 55 of the housing 5, the front 61 and the rear 62 of which are closed. Furthermore, this sleeve has a lip 80 following the front 61. The wall 63 of the sleeve facing the mouths 51 and 54 is open.
  • the sleeve of the slide 60 is connected to a rotary handle 70 via a pin 64.
  • the bore 55 is closed at the rear end by a plate 71 through which the pin 64 of the slide 60 passes.
  • the plate 71 has a continuous threaded hole 68.
  • a thread 74 on the pin 64 is a thread 74 on the pin 64.
  • FIG. 21 shows the normal running of the fibers 11, which are solidified to give yarn by giving false twist by the wrapping thread, drawn off by the draw-off roller pair 3 according to FIG. 1 and wound onto the spool of the winding device 4. If a thread break occurs now, with the hollow spindle 2 shut down, the individual fibers which have been supplied and are no longer solidified by rotation are sucked into the fiber suction channel 9 by the suction. The fiber feed is then interrupted by the pair of delivery rollers 1 into the piecing device and the fiber suction channel 9 is closed. 22 is closed by a closure device shown in FIG. 22 via a closure member 85, which is advantageously attached to the piecing device at a distance which is greater than the maximum fiber length of the fibers to be processed.
  • the end of a broken thread is returned to the suction area of the thread suction channel 9 and sucked into the channel.
  • the slide 60 is pushed to the right into the position shown in FIG. 22 by pressing the rotary handle 70 and the rotary handle 70 is rotated, as a result of which, due to the interaction of the thread 74 with the threaded hole 68 of the plate 71, a locking in the in FIG. 22 shown location is achieved.
  • the front side 61 bears against the end face of the mouth 51, so that the main channel 14 is sealed to increase the negative pressure on the hollow spindle 2.
  • the slide 60 After completion of the suction process, the slide 60 is returned to the starting position shown in FIG. 21. In this starting position, the slide 60 fulfills a further function in that, by means of the force of the spring 65, it clamps the thread in a controlled manner in the gap between the lip 80 of the slide 60 and the wall section 81 of the thread suction channel 10, so that it later emerges from the thread suction channel in a taut state 10 is pulled out.
  • the fiber suction channel 9 is now opened again and the feeding of the fibers 11 into the piecing device is resumed, the fibers being sucked into the fiber suction channel 9 after they have left the pair of delivery rollers.
  • the last phase of the piecing process is initiated in that the hollow spindle 2 is put into operation by pressing the tangential belt 8 and the fiber suction channel 9 is closed again. Simultaneously with the completion of the fiber suction channel 9, the withdrawal of the thread is taken up again by the pair of withdrawal rollers 3, so that the fibers 11 lying against the thread are integrated into the thread and drawn off with it - a process which continues and for the continuous formation of one Thread leads.
  • the piecing process of a wrapping thread can also be carried out for coarse threads.
  • the suction effect is so great that these coarse yarns, for example made of bristly carpet fibers, can also be sucked in.
  • the end of the broken yarn or thread can be brought close to the nip line of the pair of delivery rollers and thus a good connection of the fibers with the thread can be achieved. Trouble-free suction of the staple fibers with the thread end already inserted in the thread suction channel is nevertheless ensured.
  • a retention force acts on the sucked-in thread end, so that the thread is pulled out of the thread suction channel 10 tightly and without loops during the piecing process.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The device comprises a pair of delivery rolls (1) followed by a hollow shaft (2) provided with an attaching yarn bobbin, a pair of detaching cylinders (3) as well as a take-up device (4). Between the pair of supply cylinders (1) and the hollow shaft (2) there is arranged a casing wherein a main channel, as well as a fiber sucking channel and a yarn sucking channel are located. Further, in the casing there is arranged a movable tube for interrupting the effect of the fiber sucking channel. Said tube may be arranged tranversally to the main channel and movable about its longitudinal axis or arranged in the direction of the main channel axis and movable about its longitudinal axis or displaceable in the longitudinal direction.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Anspinnen eines Umwindegarnes, mit einem Lieferwalzenpaar, einer diesem nachgeordneten Hohlspindel mit Bindefadenspule einem zwichen dem Lieferwalzenpaar und der Hohlspinel angeordneten, gegenüber der Hohlspindel bewegbaren Gehäuse mit einem Hauptkanal, in den ein Faserabsaugkanal mündet, einem Azugswalzenpaar und einer Aufwickelvorrichtung.The invention relates to a device for spinning a winder yarn, with a pair of delivery rollers, a hollow spindle with binding thread bobbin arranged downstream of the latter, between the delivery roller pair and the hollow spindle, which housing is movable relative to the hollow spindle and has a main channel into which a fiber suction channel opens, a pair of pulling rollers and one Take-up device.

Eine Vorrichtung der eingangs genannten Art ist bereits bekannt (GB-A-20 76 863). Bei dieser Vorrichtung ist das zwischen dem Lieferwalzenpaar und der Hohlspindel vorhandene Gehäuse Teil eines Verschlußgliedes, das auf einem die Hohlspindel mit der Bindefadenspule konzentrisch umgebenden Gehäuse teleskopartig verschiebbar ist. Durch Verschieben des Verschluß-gliedes in Richtung der Abzugswalzen werden beim Anspinnen Luftdurchtrittsöffnungen in dem die Bindefadenspule umgebenden Gehäuse verschlossen und dadurch verbesserte Ansaugbedingungen für das Anspinnen erreicht. Nachteilig sind dabei der zusätzliche Aufwand und der erschwerte Zugang zur Bindefadenspule.A device of the type mentioned is already known (GB-A-20 76 863). In this device, the housing present between the pair of delivery rollers and the hollow spindle is part of a closure member which is telescopically displaceable on a housing concentrically surrounding the hollow spindle with the binding thread bobbin. By moving the closure member in the direction of the take-off rollers, air passage openings in the housing surrounding the binding thread bobbin are closed during piecing, thereby improving suction conditions for piecing. Disadvantages are the additional effort and the difficult access to the binding thread spool.

Es ist ferner eine Vorrichtung bekannt, welche so aufgebaut ist, daß zwei Saugrohre Anwendung finden (DE-A- 27 53 349). Über einen Schieber ist ein Saugrohr verschließbar. Zur Behebung eines Fadenbruchs wird ein Spinnfaserbündel in das Saugrohr gezogen. Das Umwindegarn wird an eine Stelle zwischen dem Lieferwalzenpaar und der Hohlspindel zurückgeliefert und in das andere Saugrohr eingesaugt. Der Saugluftstrom im ersten Saugrohr wird mit Hilfe eines Schiebers unterbrochen. Nunmehr erfolgt die Inbetriebnahme der Hohlspindel, wodurch bewirkt wird, daß das im zweiten Saugrohr befindliche Umwindegarn und der Bindefaden aus diesem abgezogen werden und dabei einen Fadenballon bilden. Weiterhin wird das Spinnfaserbündel infolge des im ersten Saugrohr unterbrochenen Saugluftatromes von diesem freigegeben und gelangt durch eine Öffnung in das Innere eines Gehäuses. Dabei wird das Spinnfaserbündel von dem durch den Bindefaden und das Umwindegarn gebildeten Fadenballon erfaßt und mit beiden verdrillt.A device is also known which is constructed in such a way that two suction pipes are used (DE-A-27 53 349). A suction pipe can be closed via a slide. A spun fiber bundle is pulled into the suction pipe to remedy a broken thread. The wrapping yarn is returned to a location between the pair of delivery rollers and the hollow spindle and sucked into the other suction tube. The suction air flow in the first suction pipe is interrupted with the help of a slide. Now the hollow spindle is put into operation, which has the effect that the wrapping yarn located in the second suction tube and the binding thread are withdrawn from it and thereby form a thread balloon. Furthermore, the spun fiber bundle is released by the suction air atom, which is interrupted in the first suction pipe, and passes through an opening into the interior of a housing. The bundle of spun fibers is grasped by the thread balloon formed by the binding thread and the wrapping yarn and twisted with both.

Auch bei dieser bekannten Ausführungsform findet ein Gehäuse Anwendung welches die Bindefadenspule umachließt. Hierbei ergibt sich ein baulicher und raummäßiger Aufwand, wobei zudem der Zugang zu der Bindefadenspule erschwert ist.In this known embodiment, too, a housing is used which encloses the binding thread spool. This results in a structural and spatial effort, and access to the binding thread spool is also made more difficult.

Zum Stand der Technik zählt weiterhin eine andere Vorrichtung zum Anspinnen eines Umwindegarnes, wobei das Anspinnen nach einem Fadenbruch mittels eines Schlitzes durch Einlegen des Fadens hinter dem Ausgangawalzenpaar erfolgt (DE-A- 29 30 798). Hierbei ist eine Fadenhaltevorrichtung im Bereich des Ausgangswalzenpaares erforderlich, wobei außerdem eine Einschaltvorrichtung für den Fadenabzug eingesetzt werden muß, welche dann in Tätigkeit tritt, wenn die Umwindespindel Betriebsdrehzahl erreicht hat. Weiterhin sind Vorkehrungen zum Einlaufenlassen des Fadens in das Ausgangswalzenpaar und das Abzugswalzenpaar erforderlich. Nachteilig ist hierbei ebenfalls der hohe konstruktive und bauliche Aufwand.The prior art also includes another device for spinning on a winding thread, the spinning after a thread break being carried out by means of a slot by inserting the thread behind the pair of output rollers (DE-A-29 30 798). In this case, a thread holding device is required in the area of the pair of output rollers, a switch-on device for thread take-off also having to be used, which comes into operation when the winding spindle has reached operating speed. Precautions are also required to allow the thread to enter the exit roller pair and the take-off roller pair. Another disadvantage here is the high level of design and construction costs.

Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung zu schaffen, die bei einfachem und kompaktem Aufbau ein sicheres Anspinnen ermöglicht, ohne dabei den Zugang zur Bindefadenspule zu behindern.The object of the present invention is to provide a device which, with a simple and compact construction, enables reliable piecing without thereby obstructing access to the binding thread spool.

Die Aufgabe wird bei einer Vorrichtung gemäß dem Oberbegriff des Anspruches 1 erfindungsgemäß dadurch gelöst, daß in dem Gehäuse ein die Saugwirkung des Faserabsaugkanals unterbrechbares Verschlußglied beweglich gelagert und in Faserlaufrichtung hinter der Mündung des Faserabsaugkanals ein in den Hauptkanal mündender Fadenansaugkanal angeordnet ist, und daß das Gehäuse am unteren Ende des Hauptkanals eine luftdicht gegen die Mündung der Hohlspindel anlegbare Abdichtung aufweist.The object is achieved in a device according to the preamble of claim 1 in that a closure member which can interrupt the suction effect of the fiber suction channel is movably mounted in the housing and a thread suction channel opening into the main channel is arranged behind the mouth of the fiber suction channel in the fiber running direction, and in that the housing at the lower end of the main channel has an airtight seal against the mouth of the hollow spindle.

Dadurch wird für die Anspinnvorrichtung nur der Raum zwischen den Lieferwalzen und der Hohlspindel benötigt und die Bindefadenspule ist frei zugänglich. Durch eine entsprechende Bewegung des Gehäuses kann ferner die Ansaugöffnung des Hauptkanals auf die ihr zugewandte Mündung der Hohlspindel ausgerichtet und mit dieser luftdicht verbunden werden. Damit wird auf einfache Weise eine erhöhte Saugwirkung an der unteren Mündung der Hohlspindel erreicht, so daß das Ende des Umwindegarnes sicher in den Fadenansaugkanal gefördert wird. Das Verschluß-glied kann hierbei beispielsweise als Schieber, Klappe, Blende oder Schlauchklemme ausgebildet sein.As a result, only the space between the delivery rollers and the hollow spindle is required for the piecing device and the binding thread bobbin is freely accessible. By a corresponding movement of the housing, the suction opening of the main channel can also be aligned with the mouth of the hollow spindle facing it and connected to it in an airtight manner. In this way, an increased suction effect at the lower mouth of the hollow spindle is achieved in a simple manner, so that the end of the winding thread is safely conveyed into the thread suction channel. The closure member can be designed, for example, as a slide, flap, screen or hose clamp.

Nach einem anderen Merkmal der Erfindung kam das Verschluß-glied in dem Gehäuse an der Mündung des Faserabsaugkanals in den Hauptkanal beweglich gelagert sein.According to another feature of the invention, the closure member came to be movably mounted in the housing at the mouth of the fiber suction channel in the main channel.

In weiterer Ausgestaltung der Erfindung kann das Verschlußglied als Rohr ausgebildet werden. Hierbei kann das Rohr im Gehäuse quer zum Hauptkanal um seine Längsachse drehbar gelagert und in der Wandung mit Aussparungen versehen sein. Allein durch Drehung des Rohres lassen sich damit im gewünschten Sinne der Faserabsaugkanal und der Hauptkanal abschließen.In a further embodiment of the invention, the closure member can be designed as a tube. In this case, the tube can be rotatably mounted in the housing transversely to the main channel about its longitudinal axis and can be provided with cutouts in the wall. The fiber suction channel and the main channel can be closed in the desired sense simply by rotating the tube.

Nach einem anderen Merkmal der Erfindung kann im Gehäuse in Faserlaufrichtung hinter der Mündung des Fadenansaugkanals eine in den Hauptkanal wirkende Dralldüse anßeordnet sein. Diese Dralldüse trägt zur Verbesserung des Anspinnvorganges nach einem Fadenbruch bei.According to another feature of the invention, a swirl nozzle acting in the main channel can be arranged in the housing in the fiber running direction behind the mouth of the thread suction channel. This swirl nozzle helps to improve the piecing process after a thread break.

Nach einer weiteren Ausführungsmöglichkeit der Erfindung kann das Rohr im Gehäuse axial zum Hauptkanal in diesem angeordnet, in der ausgesparten Wandung mit Abdeckungen zum Abschluß des Faserabsaugkanals versehen und um seine Längsachse drehbar sein. Auch hierdurch ergibt sich unter guter Raumausnutzung ein funktionsrichtiges Verschließen der jeweiligen Kanäle allein durch Drehung des Rohres. Die Abdeckungen können hierbei für den Faserabsaugkanal um 90° gegenüber den Abdeckungen für den Fadenansaugkanal versetzt sein, wobei das Rohr jeweils um 90° um seine Längsachse drehbar ist.According to a further possible embodiment of the invention, the tube in the housing can be arranged axially to the main channel in this, provided in the recessed wall with covers for closing off the fiber suction channel and be rotatable about its longitudinal axis. This also results in a functional closing of the respective channels by good rotation of the tube, with good use of space. The covers for the fiber suction channel can be offset by 90 ° with respect to the covers for the thread suction channel, the tube being rotatable through 90 ° about its longitudinal axis.

Nach einer weiteren Ausführungsform der Erfindung kann das Rohr im Gehäuse auch axial zum Hauptkanal in diesem anßeordnet und in Längsrichtung bewegbar sein. Nach einem weiteren Merkmal der Erfindung kann der Faserabsaugkanal direkt und der Fadenansaugkanal über ein langes Fadenleitrohr in einen Absaugkanal für Fasern und Fäden führen.According to a further embodiment of the invention, the tube in the housing can also be arranged axially to the main channel in the latter and be movable in the longitudinal direction. According to a further feature of the invention, the fiber suction channel can lead directly and the thread suction channel into a suction channel for fibers and threads via a long thread guide tube.

Hierbei kann dieses lange Fadenleitrohr als Schleife ausgebildet werden.This long thread guide tube can be designed as a loop.

Andererseits besteht auch die Möglichkeit, daß der Faserabsaugkanal und der Fadenansaugkanal über ein Absperrorgan miteinander verbindbar sind. Dieses Absperrorgan kann beispielsweise als Schieber ausgebildet sein, wobei der Schieber mit mindestens einer Durchgangsöffnung versehen und in mindestens eine Offenoder Schließstellung bewegbar ist. Weiterhin besteht die Möglichkeit, daß im Fadenansaugkanal ein Sieb angeordnet ist und daß der Schieber mit zwei Durchgangsöffnungen vor und hinter dem Sieb versehen ist.On the other hand, there is also the possibility that the fiber suction channel and the thread suction channel can be connected to one another via a shut-off device. This shut-off device can be designed, for example, as a slide, the slide being provided with at least one through opening and being movable into at least one open or closed position. There is also the possibility that a sieve is arranged in the thread suction channel and that the slide is provided with two through openings in front of and behind the sieve.

Eine weitere, insbesondere für gröbere Garne geeignete Ausführungsform der Erfindung ist dadurch gekennzeichnet, daß der Fadenansaugkanal auf der der Mündung des Faserabsaugkanals gegenüberliegenden Seite des Hauptkanals angeordnet ist und daß zusätzlich ein als Schieber ausgebildetes Verschlußglied quer stromauf der Mündungen des Faserabsaugkanals und des Fadenansaugkanals in den Hauptkanal bewegbar ist. Hierdurch ergibt sich der Vorteil einer raumgedrängten Anordnung, die ein nahes Heranführen des gebrochenen Fadens an das Lieferwalzenpaar und auch die Verarbeitung langer Fasern zuläßt, ohne daß diese in unerwünschter Weise beim Anspinnen eingeklemmt werden. Damit wird eine Anspinnvorrichtung geschaffen, welche trotz raumsparender Abmessungen und einfachen Aufbaues auch zum Anspinnen für Grobgarne geeignet ist.A further embodiment of the invention, which is particularly suitable for coarser yarns, is characterized in that the thread suction channel is arranged on the side of the main channel opposite the mouth of the fiber suction channel and that in addition a closure member designed as a slide crosswise upstream of the mouths of the fiber suction channel and the thread suction channel into the main channel is movable. This results in the advantage of a space-constrained arrangement, which allows the broken thread to be brought close to the pair of delivery rollers and also the processing of long fibers, without these being undesirably pinched during piecing. This creates a piecing device which, despite the space-saving dimensions and simple construction, is also suitable for piecing coarse yarns.

Ein weiterer Vorteil besteht in der größeren, freien Garnlänge für die Faseranlagerung beim Anspinnen.Another advantage is the longer, free yarn length for fiber attachment during piecing.

In weiterer Ausgestaltung der Erfindung kann durch den Schieber der Hauptkanal abgedichtet verschließbar sein, wodurch vorteilhafterweise eine Erhöhung des Unterdrucks an der Hohlspindel gegeben ist und damit das Ansaugen des Fadenendes erleichtert wird.In a further embodiment of the invention, the main channel can be sealed and sealed by the slide, which advantageously increases the negative pressure on the hollow spindle and thus facilitates the suctioning of the thread end.

Nach einem anderen Merkmal der Erfindung kann der Schieber eine Lippe aufweisen, welche in zurückgezogener Stellung des Schiebers im Zusammenwirken mit einem Wandabschnitt des Fadenansaugkanals den Querschnitt dieses Fadenansaugkanals auf einen engen, den angesaugten Faden nachgiebig zurückhaltenden Durchlaß verengt.According to another feature of the invention, the slider can have a lip which, in the retracted position of the slider in cooperation with a wall section of the thread suction channel, narrows the cross section of this thread suction channel to a narrow passage that resiliently retains the suctioned thread.

Weiterhin kann der Schieber aus einer in einer Bohrung des Gehäuses gleitbaren Hülse bestehen, deren Vorder- und Rückseite verschlossen und deren zu den Mündungen des Fadenansaugkanals und des Faserabsaugkanals gerichtete Wandung offen ausgebildet ist, woraus sich ein einfacher Aufbau des Verschlußgliedes ergibt.Furthermore, the slide can consist of a slidable sleeve in a bore of the housing, the front and back of which are closed and the wall of which is directed towards the mouths of the thread suction channel and the fiber suction channel, which results in a simple construction of the closure member.

Nach einem anderen Merkmal der Erfindung kann der Schieber federbeaufschlagt sein und in der die Mündungen des Fadenansaugkanals und des Faserabsaugkanals verbindenden Stellung arretiert werden.According to another feature of the invention, the slide can be spring-loaded and can be locked in the position connecting the mouths of the thread suction channel and the fiber suction channel.

Weiterhin kann im Abstand von der Mündung des Faserabsaugkanals ein die Saugwirkung des Faserabsaugkanals unterbrechbares Verschlußglied angeordnet sein, das von der Klemmlinie des Lieferwalzenpaares einen Abstand aufweist, welcher größer ist als die Länge der zu verarbeitenden Fasern.Furthermore, a closure member which can be interrupted by the suction effect of the fiber suction channel can be arranged at a distance from the mouth of the fiber suction channel and has a distance from the clamping line of the pair of delivery rollers which is greater than the length of the fibers to be processed.

Die Erfindung wird nachfolgend anhand von in der Zeichnung dargestellten Ausführungsbeispielen näher beschrieben. In der Zeichnung zeigen:

  • Fig. 1 eine schematische Seitenansicht der erfindungsgemäßen Vorrichtung;
  • Fig. 2 bis 5 eine Ausführungsmöglichkeit der Erfindung in schematischer Seitenansicht;
  • Fig. 6 und 7 zwei Ausführungsmöglichkeiten der Fadenansaugkanäle;
  • Fig. 8, 9 und 10 eine weitere Ausführungsmöglichkeit des Fadenansaugkanals und des Faserabsaugkanals mit einem Schieber in drei verschiedenen Positionen;
  • Fig. 11, 12 und 13 eine konstruktive Ausbildung der erfin-dungsgemäßen Vorrichtung in der Bauform gemäß Fig. 2 bis 5 in verschiedenen Verfahrenszuständen in Seitenansicht;
  • Fig. 14 eine Vorderansicht der Vorrichtung nach Fig. 11 bis 13;
  • Fig. 15 eine weitere Ausführungsform der Erfindung in Seitenansicht im Schnitt;
  • Fig. 16 eine andere Ausführungsform der Erfindung in Seitenansicht im Schnitt;
  • Fig. 17 bis 20 verschiedene Verfahrensstufen der Ausführungsform nach Fig. 12 in Draufsicht und Schnitt;
  • Fig. 21 und 22 eine weitere Ausführungsform der vorliegenden Erfindung in zwei unterschiedlichen Stellungen.
The invention is described below with reference to exemplary embodiments shown in the drawing. The drawing shows:
  • Fig. 1 is a schematic side view of the device according to the invention;
  • 2 to 5 an embodiment of the invention in a schematic side view;
  • 6 and 7 show two possible embodiments of the thread suction channels;
  • 8, 9 and 10 a further embodiment of the thread suction channel and the fiber suction channel with a slide in three different positions;
  • 11, 12 and 13 a side view of a construction of the device according to the invention in the design according to FIGS. 2 to 5 in different process states;
  • Fig. 14 is a front view of the device of Figs. 11 to 13;
  • 15 shows a further embodiment of the invention in side view in section;
  • 16 shows another embodiment of the invention in side view in section;
  • 17 to 20 different process stages of the embodiment according to FIG. 12 in plan view and section;
  • 21 and 22 a further embodiment of the present invention in two different positions.

Die in Fig. 1 dargestellte Vorrichtung zum Anspinnen eines Umwindegarns weist ein Lieferwalzenpaar 1, eine nachgeordnete, als Hohlspindel ausgebildete Umwindespindel 2 mit Bindefadenspule, ein Abzugswalzenpaar 3 sowie eine Aufwickelvorrichtung 4 auf. Weiterhin ist ein Tangentialriemenantrieb 8 für die Umwindespindel 2 vorgesehen. Zwischen dem Lieferwalzenpaar 1 und der Hohlspindel 2 ist ein Gehäuse 5 angeordnet, dessen Innenräume über eine Verbindungsleitung 6 mit einem Absaugkanal 7 verbunden sind.The device shown in FIG. 1 for spinning a wrapping yarn has a pair of delivery rollers 1, a downstream wrapping spindle 2 designed as a hollow spindle with a binding thread spool, a pair of take-off rollers 3 and a winding device 4. Furthermore, a tangential belt drive 8 is provided for the winding spindle 2. Between the pair of delivery rollers 1 and the hollow spindle 2, a housing 5 is arranged, the interior of which via a Connection line 6 are connected to a suction channel 7.

Die in Fig. 2 bis 5 in verschiedenen Verfahrensstufen dargestellte erste Ausführungsform der Erfindung weist in einem Gehäuse 5 einen Hauptkanal 14 auf, in den ein Faserabsaugkanal 9 und in Faserlaufrichtung dahinter ein Fadenansaugkanal 10 münden.The first embodiment of the invention shown in FIGS. 2 to 5 in different process stages has a main channel 14 in a housing 5, into which a fiber suction channel 9 and behind it a thread suction channel 10 open.

In Fig. 2 ist der normale Lauf der Fasern 11 dargestellt, welche unter Erteilung von Falschdrall durch den Umwindefaden zu Garn verfestigt, durch das Abzugswalzenpaar 3 nach Fig. 1 abgezogen und auf die Spule der Aufwickelvorrichtung 4 aufgewunden werden.FIG. 2 shows the normal running of the fibers 11, which are solidified into yarn by issuing false twist by the winding thread, drawn off by the pair of draw-off rollers 3 according to FIG. 1 and wound onto the spool of the winding device 4.

Fig. 3 zeigt den Zustand nach Eintritt eines Fadenbruches: Die weiter zugelieferten und nun nicht mehr durch Erteilung von Drehung verfestigten, vereinzelten Fasern werden durch den im Absaugkanal 7 herrschenden und durch den Faserabsaugkanal 9 wirkenden Sog durch diesen Faserabsaugkanal 9 abgesaugt.3 shows the state after a thread break occurs: the further supplied and now no longer solidified individual fibers are sucked off by the suction prevailing in the suction channel 7 and acting through the fiber suction channel 9 through this fiber suction channel 9.

In Fig. 4 ist der Zustand gezeigt, in dem in Vorbereitung des Behebens des Fadenbruches das Ende des gebrochenen Fadens 12, nachdem es von Hand oder durch eine selbsttätige Vorrichtung von der Spule der Aufwickelvorrichtung 4 in den Saugbereich des Fadenansaugkanals 10 zurückgeführt worden ist, unter weiterem Zurückliefern ein Stück weit in diesen Fadenansaugkanal 10 eingesaugt wird.4 shows the state in which the end of the broken thread 12, after it has been returned by hand or by an automatic device from the spool of the winding device 4 into the suction region of the thread suction channel 10, in preparation for the removal of the thread break further return is sucked a bit into this thread suction channel 10.

Fig. 5 schließlich zeigt den eigentlichen Vorgang des Behebens des Fadenbruches: Durch Verschließen der Mündung des Faserabsaugkanals 9 mittels des Verschlußgliedes 13 wird das Ansaugen der weiterhin zugeführten Einzelfasern 11 in den Faserabsaugkanal 9 unterbunden; die Fasern werden dadurch in den Saugbereich des Fadenansaugkanals 10 geführt und kommen dabei in Verbindung mit dem Faden 12. Gleichzeitig mit dem Abschließen des Faserabsaugkanals 9 wird der Abzug des Fadens 12 durch das Abzugwalzenpaar 13 wieder aufgenommen, so daß die sich an den Faden 12 anlegenden Fasern 11 in den Faden eingebunden und mit diesem abgezogen werden - ein Vorgang, weicher sich fortsetzt und zur fortlaufenden Bildung eines Fadens führt. Die die Umwindefilamentspule tragende Umwindespindel 2 wird vor Aufnahme des Abzuges des Fadens in Betrieb gesetzt. Hierbei kann der Abzug bei Inbetriebsetzen der die Umwindefilamentspule tragenden Spindel im Kriechgang erfolgen.5 finally shows the actual process of removing the thread break: by closing the mouth of the fiber suction channel 9 by means of the closure member 13, the suction of the individual fibers 11 which are still fed into the fiber suction channel 9 is prevented; the fibers are thereby guided into the suction region of the thread suction channel 10 and come in connection with the thread 12. Simultaneously with the closing of the fiber suction channel 9, the withdrawal of the thread 12 is resumed by the pair of draw-off rollers 13, so that the thread 12 abuts Fibers 11 are integrated into the thread and drawn off with it - a process which continues and leads to the continuous formation of a thread. The winding spindle 2 carrying the winding filament spool is put into operation before the thread is taken off. The withdrawal can take place in the creeper gear when the spindle carrying the winding filament spool is put into operation.

Das Einbinden der Fasern in den Faden 11 erfolgt dabei durch die Falschdrehung des Fadens durch das Umwinden mit dem unter Zug tangential an den Faden anlaufenden Umwindefaden.The binding of the fibers into the thread 11 takes place due to the incorrect rotation of the thread by the winding with the winding thread running tangentially to the thread under tension.

Dieses Erteilen von Falschdrall und das Ableiten der Fasern 11 zum Faden 12 kann durch eine in Faserlaufrichtung hinter (unter) der Mündung des Fadenansaugkanals 10 im Hauptkanal 14 angeordnete pneumatische Dralldüse 16 erfolgen, welche gleichzeitig mit dem Schließen des Faserabsaugkanals 9 eingeschaltet und nach Beheben des Fadenbruches wieder abgeschaltet wird. Diese Dralldüse ist in den Fig. 11 bis 14 näher dargestellt.This issuing of false twist and the deflection of the fibers 11 to the thread 12 can be carried out by a pneumatic swirl nozzle 16 arranged behind (under) the mouth of the thread suction channel 10 in the main channel 14 in the fiber running direction, which is switched on simultaneously with the closing of the fiber suction channel 9 and after the thread break has been eliminated is switched off again. This swirl nozzle is shown in more detail in FIGS. 11 to 14.

In den Figuren dieser Zeichnung nicht dargestellt ist das Vorbereiten des in aller Regel ebenfalls gerissenen Umwindefadens: Das Ende des gerissenen Umwindefadens wird auf der Umwindefadenspule der zuvor stillgesetzten Hohlspindel gesucht und an einem der Umwindespindel 2 benachbarten, ortsfesten Maschinenteil befestigt. Wenn die Umwindespindel 2 dann kurz vor dem Abschließen des Faseransaugkanals 9 in Betrieb gesetzt wird, umwindet der Umwindefaden den Faden 12 und setzt diese Umwindung beim Abzug des Fadens an dem aus den neu angelagerten Fasern gebildeten Faden fort.The figures of this drawing do not show the preparation of the wrapping thread, which is also usually broken: the end of the broken wrapping thread is sought on the wrapping thread bobbin of the previously shut-off hollow spindle and fastened to a stationary machine part adjacent to the winding spindle 2. If the winding spindle 2 is then put into operation shortly before the fiber suction channel 9 is closed, the winding thread winds around the thread 12 and continues this winding when the thread is drawn off on the thread formed from the newly attached fibers.

Nach dem Ende des Anspinnvorganges wird der Faserabsaugkanal 9 wieder geöffnet, damit im Falle eines weiteren Fadenbruches sofortiges Absaugen der weiter zugeführten, nicht mehr versponnenen Fasern erfolgen kann. Um die Saugwirkung des Faserabsaugkanals 9 nicht zu schwächen, ist es empfehlenswert, den Fadenansaugkanal 10 nach Beheben eines Fadenbruches zu schließen.After the piecing process has ended, the fiber suction channel 9 is opened again so that in the event of a further thread breakage, the fibers which are fed in and which are no longer spun can be sucked off immediately. In order not to weaken the suction effect of the fiber suction channel 9, it is recommended to close the thread suction channel 10 after a thread break has been eliminated.

Da ein Fadenstück 12 über eine größere Länge in den Kanal 10 zurückgesaugt wird, muß dafür Sorge getragen werden, daß dieses Fadenstück 12 auch im Absaugkanal 7 (Fig. 1) von den Fasern getrennt gehalten wird, damit sich keine Faserknoten an das Fadenstück anlagern. Hierbei sind nach Fig. 6 und 7 sowie 8 bis 10 drei Ausführungsformen möglich. Nach Fig. 6 ist der Fadenabsaugkanal als Schleife 10' ausgebildet, welcher in den einheitlichen Absaugkanal 7 für Fasern und Fäden führt, der ebenfalls mit dem Faserabsaugkanal 9 direkt in Verbindung steht. Dabei ist die Schleife 10' so lang, daß sie das längste, möglicherweise angesaugte Fadenstück aufnehmen kann, ohne daß sein Ende in den Absaugkanal 7 ragt.Since a thread piece 12 is sucked back into the channel 10 over a greater length, care must be taken that this thread piece 12 is also kept separate from the fibers in the suction channel 7 (FIG. 1), so that no fiber knots accumulate on the thread piece. 6 and 7 and 8 to 10, three embodiments are possible. According to FIG. 6, the thread suction channel is designed as a loop 10 ′, which leads into the uniform suction channel 7 for fibers and threads, which is also directly connected to the fiber suction channel 9. The loop 10 'is so long that it can accommodate the longest piece of thread that may be sucked in without its end protruding into the suction channel 7.

Nach Fig. 7 können getrennte Absaugkanäle 7 und 7' vorgesehen sein, wobei der Faserabsaugkanal 9 in den Absaugkanal 7 und über eine Leitung 10" der Fadenansaugkanal in den Ansaugkanal 7' für Fäden führt.According to FIG. 7, separate suction channels 7 and 7 'can be provided, the fiber suction channel 9 leading into the suction channel 7 and via a line 10 "the thread suction channel into the suction channel 7' for threads.

Bei der Ausführungsform nach Fig. 8 bis 10 sind der Faserabsaugkanal 9 und der Fadenansaugkänal 10 mit Durchgangsöffnungen 42 und 43 sowie 44 und 45 versehen. Zwichen diesen Durchgangsöffnungen befindet sich ein Schieber 40 mit den beiden öffnungen 46 und 47. Fig. 8 zeigt hierbei die Normalstellung, bei weicher gemäß Pos. 1 des Schiebers 40 der Fadenansaugkanal 10 vom Saugzug abgetrennt ist: Der volle Saugzug wirkt auf den Faserabsaugkanal 9, um im Falle eines Fadenbruches sofort alle nicht mehr versponnenen Fasern absaugen zu können.In the embodiment according to FIGS. 8 to 10, the fiber suction duct 9 and the thread suction duct 10 are provided with through openings 42 and 43 as well as 44 and 45. Between these through openings there is a slide 40 with the two openings 46 and 47. FIG. 8 shows the normal position, in which, according to item 1 of the slide 40, the thread suction duct 10 is separated from the suction draft: the full suction draft acts on the fiber suction duct 9, in order to be able to immediately vacuum any fibers that are no longer spun in the event of a thread break.

Fig. 9 zeigt die Fadenansaugstellung, wobei sich der Schieber 40 in position 11 befindet. Der Schieber 40 ist dabei ganz nach rechts geführt, so daß eine Verbindung zwischen den Kanälen 9 und 10 hinter dem Sieb 41 über die Durchlässe 42, 44 und 46, welche deckungsgleich liegen, gegeben ist. Damit ist der Raum hinter dem Sieb 41 mit dem Saugzug verbunden. In dieser Stellung wird der Faden angesaugt und auf dem Sieb 41 abgelagert, von wo er beim eigentlichen Anspinnvorgang nach Einschalten des Abzuges wieder abgezogen wird.Fig. 9 shows the thread suction position, with the slide 40 in position 11. The slide 40 is guided all the way to the right so that a connection between the channels 9 and 10 behind the screen 41 via the passages 42, 44 and 46, which are congruent. So that the space behind the screen 41 is connected to the suction. In this position, the thread is sucked in and deposited on the sieve 41, from where it is drawn off again during the actual piecing process after the trigger has been switched on.

Normalerweise wird die auf dem Sieb 41 abgelagerte Fadenreserve vollständig abgezogen. Es ist jedoch nicht auszuschließen, daß sich auf dem Sieb 41 Faserreste ablagern, welche beim Abzug des Fadens nicht mit abgezogen werden. Um das Sieb von solchen Ablagerungen reinigen zu können, ist die Position 111 gemäß Fig. 10 vorgesehen, in welcher der ganz nach links bewegte Schieber 40 mit Hilfe des Handgriffs 50 über die Durchgangsöffnung 47 die beiden Öffnungen 43 und 45 miteinander verbindet. Damit wird der Raum vor dem Sieb 41 mit dem Saugzug in Verbindung gesetzt, wobei auf dem Sieb abgelagerte Faserreste abgesaugt werden.The thread reserve deposited on the sieve 41 is normally drawn off completely. However, it cannot be ruled out that fiber residues are deposited on the sieve, which are not removed when the thread is drawn off. In order to be able to clean the sieve from such deposits, position 111 according to FIG. 10 is provided, in which the slide 40, which is moved completely to the left, connects the two openings 43 and 45 to one another by means of the handle 50 via the passage opening 47. The space in front of the sieve 41 is thus connected to the suction train, with fiber residues deposited on the sieve being suctioned off.

Für die Bewegung des Schiebers gibt es eine Vielzahl von Möglichkeiten. In der gezeichneten Darstellung wird er durch die Kraft zweier Federn 52 und 53 in der Normalstellung gehalten und von Hand an dem Handgriff 50 gegen die Kraft der Federn in die anderen Stellungen gedrückt. Mindestens in der Stellung nach Fig. 9 (pos. 11) kann hierbei eine Verrastung vorgesehen sein.There are a multitude of options for moving the slide. In the illustration shown, it is held in the normal position by the force of two springs 52 and 53 and is pressed by hand on the handle 50 against the force of the springs into the other positions. At least in the position according to FIG. 9 (item 11), a latching can be provided here.

Es ist weiterhin möglich, den Schieber 40 durch ein entsprechend gesteuertes Arbeitselement in die jeweiligen Stellungen 1, II und 11 zu verschieben.It is also possible to move the slide 40 into the respective positions 1, II and 11 by means of a correspondingly controlled working element.

Die in Fig. 2 bis 5 schematisch dargestellte Ausführungsform der Erfindung ist in Fig. 11, 12 und 13 konstruktiv näher erläutert. Hierbei ist ersichtlich, daß in dem Zwischenraum zwischen dem Lieferwalzenpaar 1 und der Hohlspindel ein Gehäuse 5 angeordnet ist, in welchem der Hauptkanal 14 verläuft. Innerhalb des Gehäuses 5 befindet sich auch der Faserabsaugkanal 9 und der Fadenansaugkanal 10, welche beide über ein Rohr 15 mit dem Hauptkanal 14 verbindbar sind.The embodiment of the invention shown schematically in FIGS. 2 to 5 is explained in more detail constructively in FIGS. 11, 12 and 13. It can be seen here that a housing 5 is arranged in the intermediate space between the delivery roller pair 1 and the hollow spindle, in which the main channel 14 runs. Inside the housing 5 there is also the fiber suction duct 9 and the thread suction duct 10, both of which can be connected to the main duct 14 via a pipe 15.

Dieses Rohr 15 ist im Gehäuse 5 bei diesem Ausführungsbeispiel quer zum Hauptkanal 14 drehbar gelagert. In der Wandung des Rohres 15 sind Aussparungen 19 und 20 sowie Abschlüsse 21 und 22 vorgesehen. Hierbei ist ersichtlich, wie über die Abschlüsse 21 und 22 die beiden Kanäle 9 und 10 in funktionsrichtiger Weise abschließbar sind. Die Darstellung nach Fig. 11 entspricht hierbei der schematischen Darstellung nach Fig. 2. Im Gehäuse 5 befindet sich gleichfalls die Dralldüse 16.This tube 15 is rotatably supported in the housing 5 in this embodiment, transverse to the main channel 14. In the wall of the tube 15, recesses 19 and 20 and terminations 21 and 22 are provided. It can be seen here how the two channels 9 and 10 can be closed in a functionally correct manner via the terminations 21 and 22. The representation according to FIG. 11 corresponds to the schematic representation according to FIG. 2. The swirl nozzle 16 is also located in the housing 5.

Weiterhin ist unterhalb des Gehäuses 5 eine Abdichtung 17 vorgesehen. Beim Ansaugen des gebrochenen Fadenendes von der Aufwickelspule durch die Hohlspindel muß die Umwindespindel 2 noch stillstehen. Sie ist zu diesem Zweck vom tangentialen Antriebsriemen 8 nach Fig.1 abgehoben und aus ihrer Betriebsstellung parallel verschoben. Die untere Ansaugöffnung des Gehäuses 5 muß dieser Verschiebung der Achse der Umwindespindel folgen.Furthermore, a seal 17 is provided below the housing 5. When the broken thread end is sucked from the take-up spool through the hollow spindle, the winding spindle 2 must still stand still. For this purpose, it is lifted from the tangential drive belt 8 according to FIG. 1 and moved parallel from its operating position. The lower suction opening of the housing 5 must follow this shift in the axis of the winding spindle.

Zur Erhöhung der Saugwirkung an der unteren Mündung der Hohlspindel ist hierbei die Abdichtung 17 vorgesehen, welche sich gemäß Fig. 12 durch Schwenkung des Gehäuses 5 in pfeilrichtung I luftdicht an die obere Mündung der Hohlspindel anlegt. Zu diesem Zweck ist das Gehäuse 5 kippbar ausgebildet, wobei die Kippung des Gehäuses 5 gemäß Fig. 1 um die Achse 30 erfolgen kann.In order to increase the suction effect at the lower mouth of the hollow spindle, the seal 17 is provided, which, according to FIG. 12, lies airtight on the upper mouth of the hollow spindle by pivoting the housing 5 in the direction of arrow I. For this purpose, the housing 5 is designed to be tiltable, and the housing 5 can be tilted according to FIG. 1 about the axis 30.

Es besteht auch die nicht näher dargestellte Möglichkeit, das Gehäuse 5 schräg verschiebbar auszubilden, wodurch ebenfalls der in Fig. 12 - dargestellte Effekt erzielt wird.There is also the possibility, which is not shown in detail, of making the housing 5 slantingly displaceable, as a result of which the effect shown in FIG.

Allein durch Drehung des Rohres 15 gelangen entweder die beiden Abschlüsse 21 und 22 oder die Aussparung 19 und 20 in den Bereich des Hauptkanals 14 oder des Faserabsaugkanals 9 bzw. des Fadenansaugkanals 10, so daß hierdurch der Anspinnvorgang durchgeführt werden kann. Zur Drehung des Rohres 15 kann gemäß Fig. 14 ein Rändelgriff 18 vorgesehen sein, welcher mit einer Verriegelungsvorrichtung 31 zusammenwirkt.Simply by rotating the tube 15 either the two ends 21 and 22 or the recesses 19 and 20 reach the area of the main channel 14 or the fiber suction channel 9 or the thread suction channel 10, so that the piecing process can be carried out as a result. 14, a knurled handle 18 can be provided, which cooperates with a locking device 31.

Nach einem anderen Ausführungsbeispiel der Erfindung besteht gemäß Fig. 15, 17 bis 20 auch die Möglichkeit, daß das Rohr 23 im Gehäuse 5 axial zum Hauptkanal 14 in diesem angeordnet ist. In der ausgesparten Wandung sind Abdeckungen 27 und 28 gemäß Fig. 17 bis 20 vorgesehen zum Abschluß des Faserabsaugkanals 9 bzw. des Fadenansaugkanals 10. Das Rohr 23 ist hierbei um seine Längsachse mit Hilfe des Griffes 24 gemäß Fig. 15 drehbar.15, 17 to 20 there is also the possibility that the tube 23 in the housing 5 is arranged axially to the main channel 14 in this. In the recessed wall, covers 27 and 28 according to FIGS. 17 to 20 are provided to close off the fiber suction channel 9 and the thread suction channel 10. The tube 23 can be rotated about its longitudinal axis with the aid of the handle 24 according to FIG. 15.

Nach Fig. 17 bis 20 sind die Abdeckungen 28 des Rohres 23 für den Faserabsaugkanal 9 um 90° gegenüber den Abdeckungen 27 für den Fadenansaugkanal 10 versetzt. Das Rohr 23 ist jeweils um 90° um seine Längsachse drehbar. Fig. 17 stellt den Betriebszustand dar: Die Faserabsaugung ist offen und die Fadenansaugung geschlossen, wobei als Ausgangsstellung 0° vorgesehen sind.17 to 20, the covers 28 of the tube 23 for the fiber suction duct 9 are offset by 90 ° with respect to the covers 27 for the thread suction duct 10. The tube 23 is rotatable by 90 ° about its longitudinal axis. 17 shows the operating state: the fiber suction is open and the thread suction is closed, 0 ° being provided as the starting position.

Nach Fig. 18 erfolgt das Ansaugen des Fadens, wobei die Faserabsaugung geschlossen ist und die Fadensnsaugung geöffnet wird. Dieser Zustand wird nach einer Drehung um 90° im Uhrzeigersinn erreicht. Dreht man um 180°, so ergibt sich die Situation nach Fig. 19: Hier erfolgt eine Zufuhr von Fasern 11, wobei der Faserabsaugkanal 9 und der Fadensnsaugksnal 10 geöffnet sind. Nach 270° Drehung ergibt sich die Situation nach Fig. 20: Hier ist der Anspinnvorgang dargestellt, wobei die Faserabsaugöffnung geschlossen und der Fadensnsaugbereich geöffnet ist.18, the thread is sucked in, the fiber suction is closed and the thread suction is opened. This state is reached after a clockwise rotation of 90 °. Turning through 180 ° results in the situation shown in FIG. 19: fibers 11 are fed in here, the fiber suction channel 9 and the thread suction signal 10 being open. After a rotation of 270 °, the situation according to FIG. 20 results: The piecing process is shown here, the fiber suction opening being closed and the thread suction area being open.

In Fig. 16 ist eine weitere Ausführungsform der Erfindung dargestellt. Hierbei ist das Rohr 26 im Gehäuse 5 axial zum Hauptkanal 14 in diesem angeordnet und in Längsrichtung 11 bewegbar. Über eine Verrastung 25, wie sie auch bei dem Ausführungsbeispiel nach Fig. 15 Anwendung findet, läßt sich eine funktionsrichtige Arretierung des Rohres 26 bewirken. Durch den Handgriff 33, welcher mit dem Rohr 26 in Verbindung steht, läßt sich das Rohr 2G im Gehäuse 5 axial zum Hauptkanal 14 im gewünschten Sinne verschieben.16 shows a further embodiment of the invention. Here, the tube 26 is arranged in the housing 5 axially to the main channel 14 and movable in the longitudinal direction 11. A functionally correct locking of the tube 26 can be effected by means of a latching 25, as is also used in the exemplary embodiment according to FIG. 15. Through the handle 33, which is connected to the tube 26, the tube 2G in the housing 5 can be axially Move main channel 14 as desired.

Nach Fig. 15 besteht auch die Möglichkeit, daß durch einen nicht näher dargestellten Schalter, weicher mit dem Rohr 23 zusammenwirkt, während der Durchführung des Anspinnvorganges der Abzug wieder eingeschaltet und die Dralldüse 16 in Tätigkeit gesetzt wird.15 there is also the possibility that by a switch, not shown, which cooperates with the tube 23, the trigger is switched on again during the piecing process and the swirl nozzle 16 is activated.

Bei der in Fig. 21 und 22 dargestellten Ausführungsform der Erfindung ist das Gehäuse 5 so beschaffen, daß beidseitig eines Hauptkanals 14, durch weichen Fasern 11 laufen, die unter Erteilung von Falschdrall durch einen Umwindefaden zu Garn verfestigt werden, eine Mündung 51 eines Faserabsaugkanals 9 und eine Mündung 54 eines Fadenansaugkanals 10 angeordnet sind.In the embodiment of the invention shown in FIGS. 21 and 22, the housing 5 is designed in such a way that an opening 51 of a fiber suction channel 9 runs through soft fibers 11 on both sides of a main channel 14, which are consolidated into yarn by giving false twist by a winding thread and an opening 54 of a thread suction channel 10 are arranged.

Oberhalb des Fadenansaugksnals 10 ist eine Bohrung 55 um 90° versetzt angeordnet. Innerhalb dieser Bohrung 55 ist als Verschlußglied ein Schieber 60 im vorliegenden Ausführungsbeispiel horizontal verschiebbar gelagert.Above the Fadenansaugksnals 10, a bore 55 is arranged offset by 90 °. Within this bore 55, a slide 60 is mounted horizontally displaceably as a closure member in the present embodiment.

Dieser Schieber 60 besteht aus einer in der Bohrung 55 des Gehäuses 5 gleitbaren Hülse, deren Vorderseite 61 und deren Rückseite 62 verschlossen sind. Weiterhin weist diese Hülse im Anschluß an die Vorderseite 61 eine Lippe 80 auf. Die den Mündungen 51 und 54 zugekehrte Wandung 63 der Hülse ist offen ausgebildet.This slide 60 consists of a sleeve which can slide in the bore 55 of the housing 5, the front 61 and the rear 62 of which are closed. Furthermore, this sleeve has a lip 80 following the front 61. The wall 63 of the sleeve facing the mouths 51 and 54 is open.

Die Hülse des Schiebers 60 ist über einen Zapfen 64 mit einem Drehgriff 70 verbunden. Die Bohrung 55 wird am rückseitigen Ende durch eine Platte 71 verschlossen, durch welche der Zapfen 64 des Schiebers 60 hindurchtritt. Hierbei weist die Platte 71 ein durchgehendes Gewindeloch 68 auf. Unmittelbar hinter dem Drehgriff 70 befindet sich auf dem Zapfen 64 ein Gewinde 74.The sleeve of the slide 60 is connected to a rotary handle 70 via a pin 64. The bore 55 is closed at the rear end by a plate 71 through which the pin 64 of the slide 60 passes. Here, the plate 71 has a continuous threaded hole 68. Immediately behind the rotary handle 70 there is a thread 74 on the pin 64.

In Fig. 21 ist der normale Lauf der Fasern 11 dargestellt, welche unter Erteilung von Falschdrall durch den Umwindefaden zu Garn verfestigt, durch das Abzugswalzenpaar 3 nach Fig. 1 abgezogen und auf die Spule der Aufwickelvorrichtung 4 aufgewunden werden. Tritt nun ein Fadenbruch ein, so werden bei stillgesetzter Hohlspindel 2 die weiter zugelieferten und nun nicht mehr durch Erteilung von Drehung verfestigten vereinzelten Fasern durch den Sog in den Faserabsaugkanal 9 gesaugt. Anschließend wird die Fasereinspeisung durch das Lieferwalzenpaar 1 in die Anspinnvorrichtung unterbrochen und der Faserabsaugkanal 9 geschlossen. Das Schließen erfolgt durch eine in Fig. 22 dargestellte Verschlußvorrichtung über ein Verschlußglied 85, weiche an der Anspinnvorrichtung vorteilhafterweise in einem Abstand angebracht ist, der größer ist als die maximale Faserlänge der zu verarbeitenden Fasern.FIG. 21 shows the normal running of the fibers 11, which are solidified to give yarn by giving false twist by the wrapping thread, drawn off by the draw-off roller pair 3 according to FIG. 1 and wound onto the spool of the winding device 4. If a thread break occurs now, with the hollow spindle 2 shut down, the individual fibers which have been supplied and are no longer solidified by rotation are sucked into the fiber suction channel 9 by the suction. The fiber feed is then interrupted by the pair of delivery rollers 1 into the piecing device and the fiber suction channel 9 is closed. 22 is closed by a closure device shown in FIG. 22 via a closure member 85, which is advantageously attached to the piecing device at a distance which is greater than the maximum fiber length of the fibers to be processed.

Zur Vorbereitung des Behebens des Fadenbruches wird das Ende eines nicht näher dargestellten, gebrochenen Fadens in den Saugbereich des Fadenansaugkanals 9 zurückgeführt und in den Kanal eingesaugt. Hierzu wird der Schieber 60 durch Druck auf den Drehgriff 70 nach rechts in die in Fig. 22 dargestellte Lage geschoben und der Drehgriff 70 gedreht, wodurch infolge des Zusammenwirkens des Gewindes 74 mit dem Gewindeloch 68 der Platte 71 eine Arretierung in der in Fig. 22 dargestellten Lage erzielt wird. Hierbei liegt die Vorderseite 61 an der Stirnfläche der Mündung 51 an, so daß eine Abdichtung des Hauptkanals 14 gegeben ist zur Erhöhung des Unterdrucks an der Hohlspindel 2.In preparation for repairing the thread break, the end of a broken thread, not shown, is returned to the suction area of the thread suction channel 9 and sucked into the channel. For this purpose, the slide 60 is pushed to the right into the position shown in FIG. 22 by pressing the rotary handle 70 and the rotary handle 70 is rotated, as a result of which, due to the interaction of the thread 74 with the threaded hole 68 of the plate 71, a locking in the in FIG. 22 shown location is achieved. In this case, the front side 61 bears against the end face of the mouth 51, so that the main channel 14 is sealed to increase the negative pressure on the hollow spindle 2.

Nach Beendigung des Ansaugvorganges wird der Schieber 60 in die in Fig. 21 dargestellte Ausgangsstellung zurückgeführt. In dieser Ausgangsstellung erfüllt der Schieber 60 eine weitere Funktion, indem er mittels Kraft der Feder 65 den Faden in dem Spalt zwischen der Lippe 80 des Schiebers 60 und dem Wandabschnitt 81 des Fadenansaugkanals 10 kontrolliert klemmt, so daß dieser später im straffen Zustand aus dem Fadenansaugkanal 10 herausgezogen wird. Der Faserabsaugkanal 9 wird nun wieder geöffnet und die Einspeisung der Fasern 11 in die Anspinnvorrichtung wieder aufgenommen, wobei die Fasern nach ihrem Austritt aus dem Lieferwalzenpaar in den Faserabsaugkanal 9 gesaugt werden.After completion of the suction process, the slide 60 is returned to the starting position shown in FIG. 21. In this starting position, the slide 60 fulfills a further function in that, by means of the force of the spring 65, it clamps the thread in a controlled manner in the gap between the lip 80 of the slide 60 and the wall section 81 of the thread suction channel 10, so that it later emerges from the thread suction channel in a taut state 10 is pulled out. The fiber suction channel 9 is now opened again and the feeding of the fibers 11 into the piecing device is resumed, the fibers being sucked into the fiber suction channel 9 after they have left the pair of delivery rollers.

Die letzte Phase des Anspinnvorganges wird damit eingeleitet, daß die Hohlspindel 2 durch Andrücken des Tangentialriemens 8 in Betrieb genommen und der Faserabsaugkanal 9 abermals geschlossen wird. Gleichzeitig mit dem Abschließen des Faserabsaugkanals 9 wird der Abzug des Fadens durch das Abzugswalzenpaar 3 wieder aufgenommen, so daß die sich an den Faden anlegenden Fasern 11 in den Faden eingebunden und mit diesem abgezogen werden - ein Vorgang, welcher sich fortsetzt und zur fortlaufenden Bildung eines Faden führt.The last phase of the piecing process is initiated in that the hollow spindle 2 is put into operation by pressing the tangential belt 8 and the fiber suction channel 9 is closed again. Simultaneously with the completion of the fiber suction channel 9, the withdrawal of the thread is taken up again by the pair of withdrawal rollers 3, so that the fibers 11 lying against the thread are integrated into the thread and drawn off with it - a process which continues and for the continuous formation of one Thread leads.

Infolge der besonderen Lage des Faserabsaugkanals 9 und des Fadenansaugkanals 10 sowie des bewegbaren Schiebers 60 läßt sich der Anspinnvorgang eines Umwindegarnes auch für Grobgarne durchführen. Die Ansaugwirkung ist hierbei so groß, daß auch diese groben Garne, beispielsweise aus borstigen Teppichfasern, angesaugt werden können. Dabei kann das Ende des gebrochenen Garnes oder Fadens nahe an die Klemmlinie des Lieferwalzenpaares herangeführt und damit eine gute Verbindung der Fasern mit dem Faden erreicht werden. Die störungsfreie Absaugung der Spinnfasern bei bereits in den Fadenansaugkanal eingeführtem Fadenende ist dennoch sichergestellt. Auf das angesaugte Fadenende wirkt eine Rückhaltekraft, so daß der Faden während des Anspinnvorganges straff und ohne Schlingen aus dem Fadenansaugkanal 10 herausgezogen wird. Durch die kompakte Bauform ergibt sich eine raumsparende Einheit, wobei außerdem der Luftbedarf vorteilhafterweise auf ein Minimum beschränkt wird.As a result of the special position of the fiber suction duct 9 and the thread suction duct 10 as well as the movable slide 60, the piecing process of a wrapping thread can also be carried out for coarse threads. The suction effect is so great that these coarse yarns, for example made of bristly carpet fibers, can also be sucked in. The end of the broken yarn or thread can be brought close to the nip line of the pair of delivery rollers and thus a good connection of the fibers with the thread can be achieved. Trouble-free suction of the staple fibers with the thread end already inserted in the thread suction channel is nevertheless ensured. A retention force acts on the sucked-in thread end, so that the thread is pulled out of the thread suction channel 10 tightly and without loops during the piecing process. The compact design results in a space-saving unit, and the air requirement is also advantageously reduced to a minimum.

Claims (21)

1. Device for piecing a wrapped yarn having a pair of feed rollers a subsequently mounted hollow spindle with a binding-thread spool, a housing arranged between the pair of feed rollers and the hollow spindle, said housing being movable with regard to the hollow spindle and having a main duct into which a fiber suction duct opens, a pair of draw-off rollers and a winding device, characterized in that a closing element (15; 23; 26) interrupting the suction effect of the fiber suction duct (9) is movably mounted in the housing (5) and a yarn aspiration duct (10) opening into the main duct (14) is arranged in the travel direction of the fibers after the mouth of the fiber suction duct (9), and that at the lower end of the main duct (14) the housing (5) has a seal (17), which can be applied to the mouth of the hollow spindle (2) in an airtight manner.
2. Device according to claim 1, characterized in that the closing element (15; 23; 26) is movably mounted in the housing (5) at the opening of the fiber suction duct (9) into the main duct (14).
3. Device according to claim 1 and 2, characterized in that the closing element is shaped as a tube.
4. Device according to claims 2 and 3, characterized in that the tube (15) is rotatably journaled around its longitudinal axis in the housing (5) transversely to the main duct (14), its wall being provided with openings (19,20).
5. Device according to claim 1, characterized in that a twist nozzle (16) effective in the main duct (14) is provided in the housing (5) in the travel direction of the fiber after the mouth of the yarn aspiration duct (10).
6. Device according to claim 3, characterized in that the tube (23) is mounted in the housing (5) axially to the main duct (14), is provided with covers (27, 28) at the opening in the wall for closing the fiber suction duct (9) and the yarn aspiration duct (10) and is rotatable around its longitudinal axis.
7. Device according to claim 6, characterized in that the covers (28) for the fiber suction duct (9) are offset by 90° with regard to the covers (27) for the yarn aspiration duct (10) and that the tube (23) is rotatable around its longitudinal axis by 90° each way.
8. Device according to claim 3, characterized in that the tube (26) is mounted in the housing (5) axially to the main duct (14) and is movable in longitudinal direction (II).
9. Device according to claims 1 and 2, characterized in that the fiber suction duct (9) leads directly and the yarn aspiration duct (10) leads via a long yarn tube (10") into a suction duct (7) for fibers and yarn.
10. Device according to claim 9, characterized in that the long yarn tube is shaped as a loop (10').
11. Device according to claim 1, characterized in that the fiber suction duct (9) and the yarn aspiration duct (10) are connectable to each other via a shutting element (40).
12. Device according to claim 11, characterized in that the shutting element (40) is built as a slide gate. ―――――
13. Device according to claim 12, characterized in that the slide gate is provided with at least one slot (46) and is movable at least in one open or shut position.
14. Device according to claim 12 or 13, characterized in that a screen (41) is disposed in the yarn aspiration duct (10) and that the slide gate (40) is provided with two slots (46, 47) before and after the screen (41).
15. Device according to claim 1, characterized in that the yarn aspiration duct (10) is arranged on the side of the main duct (14) opposite to the mouth (51) of the fiber suction duct (9) and that in addition a closing element shaped as a slide gate (60) is transversely movable in the main duct (14) upstream of the mouth (51, 52) of the fiber suction duct (9) and the yarn aspiration duct (10).
16. Device according to claim 15, characterized in that the main duct (14) is tightly closable by the slide gate (60).
17. Device according to claim 15, characterized in that the slide gate (60) has a lip (80) which in the retreat position of the slide gate interacts with a wall section (81) of the yarn aspiration duct (10) in order to confine the cross section of said yarn aspiration duct to a narrow outlet, yieldingly retaining the aspirated yarn.
18. Device according to claims 15 and 16, characterized in that the slide gate (60) consists of a bushing slidable in a bore (53) of the housing, the front and back sides (61, 62) of said bushing being closed and its wall (63) directed towards the mouth of the yarn aspiration duct (10) and the fiber suction duct (9) is being open.
19. Device according to claim 15 to 17, characterized in that the slide gate (60) is acted upon by a spring.
20. Device according to one of the preceding claims, characterized in that the slide gate is lockable in a position connecting the mouths of the yarn aspiration duct (10) and the fiber suction duct (9).
21. Device according to claim 15, characterized in that the closing element (85) interrupting the suction effect of the fiber suction duct (9) is disposed within a distance from the mouth (51) of the fiber suction duct (9), said closing element being at a distance from the nip line of the pair of feed rollers (1) greater than the length of the fiber to be preocessed.
EP19820901782 1981-06-02 1982-05-29 Device for joining the ends of a yarn being wound Expired EP0079926B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19813121866 DE3121866A1 (en) 1981-06-02 1981-06-02 Apparatus for the piecing of a wind-round yarn
DE3121866 1981-06-02
DE3214352 1982-04-19
DE19823214352 DE3214352A1 (en) 1982-04-19 1982-04-19 Device for piecing a wind-round yarn

Publications (2)

Publication Number Publication Date
EP0079926A1 EP0079926A1 (en) 1983-06-01
EP0079926B1 true EP0079926B1 (en) 1986-04-09

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Application Number Title Priority Date Filing Date
EP19820901782 Expired EP0079926B1 (en) 1981-06-02 1982-05-29 Device for joining the ends of a yarn being wound

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EP (1) EP0079926B1 (en)
JP (1) JPS58500861A (en)
WO (1) WO1982004269A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5912765B2 (en) * 1976-04-06 1984-03-26 東レ株式会社 Method and device for producing bundled spun yarn
DE2753349C2 (en) * 1977-11-30 1983-03-24 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Method and device for piecing a wrapped yarn
DE2930798C2 (en) * 1979-07-28 1983-03-31 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Method and device for piecing a wrapped yarn
DE3020726C2 (en) * 1980-05-31 1983-08-18 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Device for piecing a wrapped yarn

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EP0079926A1 (en) 1983-06-01
JPS58500861A (en) 1983-05-26
WO1982004269A1 (en) 1982-12-09

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