EP0565878B1 - Suction device for a multitude of running yarns - Google Patents

Suction device for a multitude of running yarns Download PDF

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Publication number
EP0565878B1
EP0565878B1 EP93104208A EP93104208A EP0565878B1 EP 0565878 B1 EP0565878 B1 EP 0565878B1 EP 93104208 A EP93104208 A EP 93104208A EP 93104208 A EP93104208 A EP 93104208A EP 0565878 B1 EP0565878 B1 EP 0565878B1
Authority
EP
European Patent Office
Prior art keywords
suction
thread
tube
suction pipe
inside diameter
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
EP93104208A
Other languages
German (de)
French (fr)
Other versions
EP0565878A1 (en
Inventor
Peter Dammann
Klaus Bartkowiak
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 Barmag AG
Original Assignee
Barmag AG
Barmag Barmer Maschinenfabrik AG
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Filing date
Publication date
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Publication of EP0565878A1 publication Critical patent/EP0565878A1/en
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H11/00—Arrangements for confining or removing dust, fly or the like
    • D01H11/005—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices
    • D01H11/006—Arrangements for confining or removing dust, fly or the like with blowing and/or suction devices travelling along the machines
    • 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
    • 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
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/71—Arrangements for severing filamentary materials
    • 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
    • B65H54/86—Arrangements for taking-up waste material before or after winding or depositing
    • B65H54/88—Arrangements for taking-up waste material before or after winding or depositing by means of pneumatic arrangements, e.g. suction guns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/003—Arrangements for threading or unthreading the guide
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/14—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements
    • D01H13/145—Warning or safety devices, e.g. automatic fault detectors, stop motions ; Monitoring the entanglement of slivers in drafting arrangements set on carriages travelling along the machines; Warning or safety devices pulled along the working unit by a band or the like
    • 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 suction device for a plurality of continuously starting threads according to the preamble of claim 1, known from FR-A-2 203 374.
  • the suction pipe in which, for. B. a negative pressure is generated by a fan.
  • the suction pipe has a large number of inlet openings, which can be closed if necessary.
  • a continuously running thread is guided in the area of each opening. The thread is sucked through the inlet opening as soon as it is behind the inlet opening, i.e. H. is cut off between the inlet opening and the winder.
  • the number of threads that can be sucked through the suction pipe at the same time depends on the suction power and on the suction speed generated in the suction pipe.
  • Another suction device is e.g. B. known from EP 0 404 045.
  • the task is to eliminate the relationship between the speed of the suction flow in the suction tube and the thread speed and to enable that when operating the machine by several people or by machines, the greatest possible number of threads in spite of high thread speed and little effort in suction power can be safely caught and simultaneously conveyed away.
  • the solution results from the characterizing part of claim 1 and offers the advantage that the thread tension is built up in two stages.
  • the viewed suction tubes offer the advantage that the flow and pressure conditions in the suction tube are no longer exclusively decisive for the suction effect the mouths of the inlet tubes. Rather, there are suction and conveying effects on the thread with good use of the suction power of the blower.
  • Several suction tubes can always be open without impairing the suction effect.
  • the thread tension is so great that there is no danger of the thread twisting and the formation of the winder.
  • the flow in the suction channel itself only has the effect of washing off the threads or a thread bulge.
  • the high-speed line that then follows builds up a further thread pulling force on the thread before it reaches the waste container.
  • the axis of the suction tube is inclined in the mouth region into the suction tube relative to the axis of the suction tube in such a way that the thread has a component of movement in the suction direction.
  • the suction tube can be constructed on the inside as a straight cylinder.
  • the axis of the suction tube can also be continuously or abruptly bent with its axis from the mouth area to the suction opening.
  • the thread can be guided in the center of the suction flow that arises in the suction tube and exert a higher tensile force.
  • Each tube can be connected to a closing device in order to "idle" - d. H. if no thread has to be sucked in - to avoid pressure losses in the suction flow.
  • these pressure losses are low anyway, since the suction tube is formed with a multiple of the diameter of the suction tube.
  • the suction pipe is cylindrical. It has an inner diameter of z. B. 40 mm.
  • the suction pipe is equipped on its free end with a closing valve 5, 6. At its other end, the suction pipe 1 is connected to a waste container.
  • the waste container is connected to a vacuum blower. A negative pressure of z. B. 0.7 bar.
  • the suction pipe 1 is populated on a surface line with a large number of suction tubes.
  • Each suction pipe 3 is placed airtight on the jacket of the suction pipe 1.
  • the axis of the suction pipe 3 is inclined to the axis of the suction pipe 1, in such a way that the thread guided through the suction pipe 3 has a movement component in the direction of the suction flow 7, which is generated in the suction pipe 1.
  • Each intake pipe 3 is in turn straight cylindrical and has a length of 100 mm.
  • the inner diameter is small and is z. B. 5 mm.
  • the vacuum or vacuum generated by the vacuum pump vacuum blower
  • a suction flow with the direction of arrow 7 is generated in the suction pipe 1.
  • This also creates an air flow in each intake tube 3.
  • this air flow is substantially larger than the air flow in the suction pipe 1.
  • the narrow diameter of the suction pipe 3 becomes 5 to 20 times Larger inner diameter of the suction pipe 1 is adjusted so that a high pressure difference over the channel length of the suction pipe 3 is established. This creates high flow velocities at the inlet of the intake pipe. With this high flow speed, it is possible to catch the thread safely after the cut and to form such a large thread tension that the thread is guided through the channel of the suction pipe and into the suction pipe.
  • FIG. 2 shows the suction pipe in longitudinal section.
  • FIG. 1 shows the suction pipe in longitudinal section.
  • Some suction tubes 3 are kinked approximately in their central area; other suction tubes, which can alternatively be used, are curved over their entire length.
  • the kink angle or the curvature are selected such that a thread which is guided over the length of the suction tube is only slightly, preferably not at all, deflected by the kink or the curvature.
  • Each intake pipe can be opened and closed by a valve 15, a magnet 25 is used to actuate the valve.
  • the magnet 25 is controlled by the machine control 17 and position control 19.
  • the control is synchronized with the control for the thread cutter 21, by means of which the thread is cut off at the end of the winding travel.
  • the magnet 25 is activated again in the closing sense when the thread has been put back on the winding head at the beginning of a new winding trip and has been cut off between the winding and the suction tube.
  • the suction pipe 1 opens into a so-called "high-speed line” 23.
  • This is a tube which has a smaller diameter and which is connected to the suction tube by a nozzle-like taper 31 in an airtight manner.
  • the high-speed line 23 is connected to the waste container 29.
  • the waste container 29 serves to collect the thread waste. It is connected to a suction fan 27, which causes a vacuum or suction flow in the waste container and thus also in the high-speed line, the suction pipe and the suction tube.
  • An auxiliary valve 5 is provided at the other end of the suction pipe 1.
  • the auxiliary valve can be set up as in FIG. 1.
  • the auxiliary valve allows additional air to be admitted if it turns out that the amount of air let in through the suction tube is not sufficient for the safe transport of the thread in the suction tube 1.
  • the auxiliary valve consists of three additional inlet openings which can be opened and closed separately from one another.
  • a vacuum is generated in the waste container 29 by the suction fan 27.
  • the waste container 29 is hermetically sealed.
  • air is drawn in via the high-speed line 23, the suction pipe 1 and the suction tubes 3 (insofar as they are open).
  • This pressure drop translates into a corresponding increase in speed.
  • a pressure drop occurs within the suction tube 3.
  • each thread not only reaches the edge zone of the air flow but also the central areas of the air flow.
  • the curvature of the high-speed section 23 also serves the purpose of guiding the thread at least in sections into the central region of the air flow.
  • the associated suction tube 3 is closed by the valve 15.
  • a thread cutter 21 is actuated, which is arranged between the suction tube and the bobbin.
  • the magnet 25 of the valve 15 is also activated and the valve is opened. As a result, the thread running in front of the suction mouth of the suction tube 3 is gripped by the suction flow and drawn into the suction tube.
  • a certain amount of air is required. This air volume is automatically provided if several winding units are operated at the same time, i. H. several suction tubes are open. In the exemplary embodiment it is assumed as an example that four suction tubes must always be open at the same time. If this condition is not met, a number of auxiliary valves 5 can be opened to supplement the air flow, so that there are always four openings for the air inlet. If only one thread has to be sucked off, all three auxiliary valves are additionally opened. If three threads are sucked off, only one of the auxiliary valves has to be opened.
  • Fig. 3 shows an alternative for an auxiliary valve 5.
  • the valve body is attached to a pressure-loaded membrane.
  • auxiliary valve looks as follows: The end of the suction pipe 1 is closed by a membrane 60.
  • This membrane 60 has a central inlet opening 61.
  • the inlet opening is closed by a valve cone 62 which is fixedly attached to the suction pipe 1.
  • the membrane In its rest position, the membrane is pressed in the closing direction by a spring 63, so that the opening 61 is completely or partially closed.
  • the suction fan 27 If e.g. B. only one thread is sucked off, the suction fan 27 generates a strong negative pressure in the suction pipe 1. Therefore, the membrane of the auxiliary valve 5 is loaded with a large pressure difference against the spring force acting on the membrane. This opens it Auxiliary valve 5. If two or more threads are sucked in, the negative pressure which arises in the suction pipe 1 is correspondingly lower. This also reduces the deflection of the membrane and the opening roller of the auxiliary valve 5.
  • FIG. 4 shows a winding device in which the payoff device according to the invention is used.
  • This winding device is also the subject of priority application DE-A-4212241.
  • the winding machine is described here again as follows:
  • the thread running through the fixed thread guide 40 and the rear sight 34 of the traversing thread guide 30 is wound as a cross winding on the rotating bobbin 14 as a result of the reciprocating movement of the traversing thread guide 30. It runs above the thread lifter 42, the knife 50 and the centering device 52 and sweeps over an essentially triangular surface (traversing triangle) which is bent around the thread overflow rod.
  • a signal indicating the end of the winding travel is triggered by a device (not shown here).
  • This signal is fed to the drive 48 of the bracket 42.
  • the signal triggers a movement of the drive 48 in the sense that the Bracket 42 is pivoted into its upright position. He lifts the thread 36 out of the rear sight 34 of the traversing thread guide 30. As a result of its tension and the inclination of the arms 42c and 42d of the bracket 42, the thread 36 slides along the bracket arm 42c or 42d lying beneath it, possibly over the projection 46 and through the gap in the rear sight 44. It comes under the projection 46. Since the bobbin continues to rotate in the meantime, the thread 36 is directed to a circumferential location of the bobbin 14, which lies essentially in the same vertical plane as the bow rear sight 44, the Centerer 50 and the fixed thread guide 40.
  • the cross winding is wrapped by a final winding 58 consisting of several thread turns.
  • the drive 48 is actuated again, this time in the sense of pivoting the bracket 42 back into its position below the traversing triangle.
  • the solenoid valve 15 (FIG. 2) is opened.
  • the thread 36 is held by the projection 46, guided against the knife edge 50a and cut thereon, ie the thread 36 is guided essentially in the aforementioned vertical plane.
  • the bracket 42 and its drive 48 is therefore identical to the thread cutter according to FIG. 2, which is only shown symbolically there.
  • the end of the thread 36 coming from the fixed thread guide 40 is guided in front of the suction pipe 3 of the suction device, is grasped by the suction flow and is guided into the waste container (see FIG. 2).
  • the other end of the thread 36 is received in the final winding 58.
  • the coil can then be removed from the holder 24 in a known manner by loosening the centering plate and replaced by an empty coil.
  • the device according to the invention is also suitable for producing yarn packages without a final winding, as may be desired under certain conditions.
  • the bracket 42 only needs to be raised so far that the thread 36 is gripped by the rear sight 44 of the bracket 42 and, when the bracket 42 is pivoted back into its lower position for cutting in the knife 50 and in front of the mouth of the suction pipe 3 becomes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Description

Die Erfindung betrifft eine Absaugeinrichtung für eine Vielzahl von kontinuierlich anlaufenden Fäden nach Oberbegriff von Anspruch 1, bekannt aus FR-A-2 203 374.The invention relates to a suction device for a plurality of continuously starting threads according to the preamble of claim 1, known from FR-A-2 203 374.

Es handelt sich um ein Absaugrohr, in dem z. B. durch ein Gebläse ein Unterdruck erzeugt wird. Das Absaugrohr besitzt eine Vielzahl von Einlaßöffnungen, die ggf. verschlossen werden können. Im Bereich einer jeden Öffnung wird ein kontinuierlich anlaufender Faden geführt. Der Faden wird durch die Einlaßöffnung abgesaugt, sobald er hinter der Einlaßöffnung, d. h. zwischen der Einlaßöffnung und der Aufwickeleinrichtung abgeschnitten wird. Die Anzahl der Fäden, die durch das Absaugrohr gleichzeitig abgesaugt werden können, hängt ab von der Saugleistung und von der in dem Absaugrohr erzeugten Sauggeschwindigkeit.It is a suction pipe in which, for. B. a negative pressure is generated by a fan. The suction pipe has a large number of inlet openings, which can be closed if necessary. A continuously running thread is guided in the area of each opening. The thread is sucked through the inlet opening as soon as it is behind the inlet opening, i.e. H. is cut off between the inlet opening and the winder. The number of threads that can be sucked through the suction pipe at the same time depends on the suction power and on the suction speed generated in the suction pipe.

Bei dieser Absaugeinrichtung besteht das Problem, daß sich der eingesaugte Faden vor der Filterkammer staut, sodaß sich die Saugwirkung nach und nach verringert. Bei hohen Fadengeschwindigkeiten besteht deshalb die Gefahr der Verstopfung des Absaugrohres.The problem with this suction device is that the sucked-in thread jams in front of the filter chamber, so that the suction effect is gradually reduced. At high thread speeds, there is therefore a risk of the suction pipe becoming blocked.

Eine weitere Absaugeinrichtung ist z. B. bekannt durch die EP 0 404 045.Another suction device is e.g. B. known from EP 0 404 045.

Da Fadengeschwindigkeiten von 1000 m/min. und mehr angestrebt werden, besteht die Aufgabe darin, den Zusammenhang zwischen der Geschwindigkeit der Saugströmung in dem Absaugrohr und der Fadengeschwindigkeit zu beseitigen und zu ermöglichen, daß bei Bedienung der Maschine durch mehrere Personen oder durch Automaten eine möglichst große Zahl von Fäden trotz hoher Fadengeschwindigkeit und geringem Aufwand an Saugleistung sicher zu fangen und gleichzeitig wegzufördern.Since thread speeds of 1000 m / min. and more are aimed, the task is to eliminate the relationship between the speed of the suction flow in the suction tube and the thread speed and to enable that when operating the machine by several people or by machines, the greatest possible number of threads in spite of high thread speed and little effort in suction power can be safely caught and simultaneously conveyed away.

Die Lösung ergibt sich aus dem Kennzeichen von Anspruch 1 und bietet den Vorteil, daß die Fadenspannung in zwei Stufen aufgebaut wird Dabei bieten die aufgesehten Einsaugröhrchen den Vorteil, daß nunmehr die Strömungs- und Druckverhältnisse in dem Saugrohr nicht mehr ausschließlich maßgeblich sind für die Einsaugwirkung an den Mündungen der Einlaufröhrchen. Dort entstehen vielmehr Saug- und Förderwirkungen auf den Faden bei guter Ausnutzung der Saugleistung des Gebläses. Es können ohne Beeinträchtigung der Saugwirkung stets mehrere Einsaugröhrchen geöffnet sein. Sofort nach dem Fangen des Fadens wird eine so große Fadenzugkraft ausgeübt, daß die Gefahr des Verschlappens des Fadens und der Wicklerbildung nicht gegeben ist. Die Strömung im Absaugkanal selbst hat lediglich die Wirkung, die Fäden bzw. ein Fadengewölle abzuschwemmen. Durch die dann folgende Hochgeschwindigkeitsstrecke wird eine weitere Fadenzugkraft auf den Faden aufgebaut, bevor er in den Abfallbehälter gelangt.The solution results from the characterizing part of claim 1 and offers the advantage that the thread tension is built up in two stages. The viewed suction tubes offer the advantage that the flow and pressure conditions in the suction tube are no longer exclusively decisive for the suction effect the mouths of the inlet tubes. Rather, there are suction and conveying effects on the thread with good use of the suction power of the blower. Several suction tubes can always be open without impairing the suction effect. Immediately after the thread has been caught, the thread tension is so great that there is no danger of the thread twisting and the formation of the winder. The flow in the suction channel itself only has the effect of washing off the threads or a thread bulge. The high-speed line that then follows builds up a further thread pulling force on the thread before it reaches the waste container.

Mit dieser Lösung wird es demnach sogar möglich, den Faden in dem Absaugrohr als Fadengewirr mit langsamer Geschwindigkeit zu fördern, trotzdem aber auf den mit hoher Geschindigkeit anlaufenden, durch das Einsaugröhrchen eingezogenen Faden eine ausreichend hohe Zugkraft auszuüben.With this solution it is therefore even possible to convey the thread in the suction tube as a tangle of threads at a slow speed, but nevertheless to exert a sufficiently high tensile force on the thread starting at high speed and drawn through the suction tube.

Um an der Einmündung des Einsaugröhrchens in das Absaugrohr einen aerodynamischen Luftstau zu verhindern, wird das Einsaugröhrchen derart mit seiner Achse im Einmündungsbereich in das Absaugrohr zur Achse des Absaugrohres geneigt, daß der Faden eine Bewegungskomponente in Saugrichtung hat.In order to prevent aerodynamic air congestion at the mouth of the suction tube in the suction tube, the axis of the suction tube is inclined in the mouth region into the suction tube relative to the axis of the suction tube in such a way that the thread has a component of movement in the suction direction.

Das Einsaugröhrchen kann innen als Geradzylinder aufgebaut sein.The suction tube can be constructed on the inside as a straight cylinder.

Das Einsaugröhrchen kann jedoch auch mit seiner Achse vom Einmündungsbereich zur Einsaugöffnung kontinuierlich oder sprunghaft geknickt sein. Dadurch läßt sich der Faden im Zentrum der Einsaugströmung, die in dem Einsaugröhrchen entsteht, führen und eine höhere Zugkraft ausüben. Jedes Röhrchen kann mit einer Schließeinrichtung verbunden sein, um bei "Leerlauf" - d. h. wenn kein Faden angesaugt werden muß - Druckverluste in der Saugströmung zu vermeiden. Durch die verhältnismäßig geringe Strömungsgeschwindigkeit in dem Absaugrohr sowie durch die enge Dimensionierung des Einsaugröhrchens sind diese Druckverluste aber ohnehin gering, da das Absaugrohr mit einem Vielfachen des Durchmessers des Einsaugröhrchens ausgebildet wird. Auch bei gleichzeitigem Absaugen vieler Fäden lassen sich die Druckverluste so niedrig halten, daß eine gestufte oder allmähliche Aufweitung des Rohrquerschnittes nicht erforderlich ist. Maßgebend dafür ist, daß die Einzelströmungen, die durch die Saugröhrchen angesaugt werden, nur geringe Luftmengen beinhalten, so daß sich auch aus der Summierung der Einzelströmungen nur eine verhältnismäßig geringe Zunahme des Gesamtvolumenstroms in dem Absaugrohr ergibt.However, the axis of the suction tube can also be continuously or abruptly bent with its axis from the mouth area to the suction opening. As a result, the thread can be guided in the center of the suction flow that arises in the suction tube and exert a higher tensile force. Each tube can be connected to a closing device in order to "idle" - d. H. if no thread has to be sucked in - to avoid pressure losses in the suction flow. However, due to the relatively low flow velocity in the suction tube and the narrow dimensioning of the suction tube, these pressure losses are low anyway, since the suction tube is formed with a multiple of the diameter of the suction tube. Even if many threads are sucked off at the same time, the pressure losses can be kept so low that a stepped or gradual widening of the pipe cross section is not necessary. The decisive factor here is that the individual flows which are sucked in through the suction tubes contain only small amounts of air, so that the summation of the individual flows also results in only a relatively small increase in the total volume flow in the suction pipe.

Im folgenden wird die Erfindung anhand eines Ausführungsbeispieles beschrieben.

Fig. 1
zeigt ein Absaugrohr im Längsschnitt;
Fig. 2
zeigt ein weiteres Ausführungsbeispiel mit einem vergrößerten Ausschnitt in Fig. 2A;
Fig. 3
zeigt ein Hilfsventil zur Gewährleistung einer ausreichenden Luftzufuhr;
Fig. 4
zeigt eine Aufspulmaschine, in der die Absaugeinrichtung Verwendung findet.
The invention is described below using an exemplary embodiment.
Fig. 1
shows a suction pipe in longitudinal section;
Fig. 2
shows a further embodiment with an enlarged section in Fig. 2A;
Fig. 3
shows an auxiliary valve to ensure a adequate air supply;
Fig. 4
shows a winding machine in which the suction device is used.

Das Absaugrohr ist zylindrisch. Es besitzt einen Innendurchmesser von z. B. 40 mm. Das Einsaugrohr ist auf seinem freien Ende mit einem Schließventil 5, 6 ausgerüstet. Auf seinem anderen Ende ist das Saugrohr 1 an einen Abfallbehälter angeschlossen. Der Abfallbehälter seinerseits ist an ein Unterdruckgebläse angeschlossen. Durch das Gebläse wird ein Unterdruck von z. B. 0,7 bar erzeugt. Das Absaugrohr 1 ist auf einer Mantellinie mit einer Vielzahl von Einsaugröhrchen besetzt. Jedes Einsaugrohr 3 ist auf den Mantel des Absaugrohres 1 luftdicht aufgesetzt. Die Achse des Einsaugrohres 3 ist zur Achse des Absaugrohres 1 geneigt, und zwar so, daß der durch das Einsaugröhrchen 3 geführte Faden eine Bewegungskomponente in Richtung der Saugströmung 7, die in dem Absaugrohr 1 erzeugt wird, hat.The suction pipe is cylindrical. It has an inner diameter of z. B. 40 mm. The suction pipe is equipped on its free end with a closing valve 5, 6. At its other end, the suction pipe 1 is connected to a waste container. The waste container is connected to a vacuum blower. A negative pressure of z. B. 0.7 bar. The suction pipe 1 is populated on a surface line with a large number of suction tubes. Each suction pipe 3 is placed airtight on the jacket of the suction pipe 1. The axis of the suction pipe 3 is inclined to the axis of the suction pipe 1, in such a way that the thread guided through the suction pipe 3 has a movement component in the direction of the suction flow 7, which is generated in the suction pipe 1.

Jedes Einsaugrohr 3 ist wiederum geradzylindrisch ausgebildet und hat eine Länge von 100 mm. Der Innendurchmesser ist gering und beträgt z. B. 5 mm.Each intake pipe 3 is in turn straight cylindrical and has a length of 100 mm. The inner diameter is small and is z. B. 5 mm.

Zur Funktion:About the function:

Infolge des durch die Unterdruckpumpe (Unterdruckgebläse) erzeugten Vakuums bzw. Unterdrucks wird in dem Absaugrohr 1 eine Saugströmung mit Richtung des Pfeiles 7 erzeugt. Dadurch entsteht auch in jedem Einsaugröhrchen 3 eine Luftströmung. Diese Luftströmung ist entsprechend dem Durchmesserverhältnis wesentlich größer als die Luftströmung in dem Absaugrohr 1. Erfindungsgemäß wird der enge Durchmesser des Einsaugrohres 3 zu dem 5- bis 20-fach größeren Innendurchmesser des Absaugrohres 1 so abgestimmt, daß sich eine hohe Druckdifferenz über die Kanallänge des Einsaugrohres 3 einstellt. Dadurch entstehen hohe Strömungsgeschwindigkeiten am Eintritt des Einsaugrohres. Mit dieser hohen Strömungsgeschwindigkeit gelingt es, den Faden nach dem Schnitt sicher zu fangen und eine so große Fadenzugkraft zu bilden, daß der Faden durch den Kanal des Einsaugrohres und in das Absaugrohr geführt wird.As a result of the vacuum or vacuum generated by the vacuum pump (vacuum blower), a suction flow with the direction of arrow 7 is generated in the suction pipe 1. This also creates an air flow in each intake tube 3. According to the diameter ratio, this air flow is substantially larger than the air flow in the suction pipe 1. According to the invention, the narrow diameter of the suction pipe 3 becomes 5 to 20 times Larger inner diameter of the suction pipe 1 is adjusted so that a high pressure difference over the channel length of the suction pipe 3 is established. This creates high flow velocities at the inlet of the intake pipe. With this high flow speed, it is possible to catch the thread safely after the cut and to form such a large thread tension that the thread is guided through the channel of the suction pipe and into the suction pipe.

Ein weiteres Ausführungsbeispiel ist in Fig. 2 dargestellt. Fig. 2 zeigt das Absaugrohr im Längsschnitt. Zur Beschreibung wird auf die Beschreibung von Fig. 1 Bezug genommen. Es gelten lediglich die folgenden Abweichungen:Another embodiment is shown in FIG. 2. Fig. 2 shows the suction pipe in longitudinal section. For description, reference is made to the description of FIG. 1. Only the following deviations apply:

Einige Einsaugröhrchen 3 sind etwa in ihrem mittlerem Bereich geknickt; andere Absaugröhrchen, die alternativ angewandt werden können, sind über ihre gesamte Länge gekrümmt. Der Knickwinkel bzw. die Krümmung sind so gewählt, daß ein über die Länge des Einsaugröhrchens geführter Faden durch die Knickstelle bzw. die Krümmung nur unwesentlich - vorzugsweise gar nicht - abgelenkt wird.Some suction tubes 3 are kinked approximately in their central area; other suction tubes, which can alternatively be used, are curved over their entire length. The kink angle or the curvature are selected such that a thread which is guided over the length of the suction tube is only slightly, preferably not at all, deflected by the kink or the curvature.

Jedes Einsaugrohr kann durch ein Ventil 15 geöffnet und geschlossen werden zur Betätigung des Ventils dient eine Magnet 25. Der Magnet 25 wird durch die Maschinensteuerung 17 und Stellensteuerung 19 angesteuert. Die Ansteuerung ist synchronisiert mit der Ansteuerung für den Fadenschneider 21, durch welchen der Faden bei Beendigung der Spulreise abgeschnitten wird. Der Magnet 25 wird jeweils wieder im Schließsinne aktiviert, wenn der Faden zu Beginn einer neuen Spulreise wieder an den Spulkopf angelegt worden und zwischen Aufspulung und Einsaugröhrchen abgeschnitten worden ist.Each intake pipe can be opened and closed by a valve 15, a magnet 25 is used to actuate the valve. The magnet 25 is controlled by the machine control 17 and position control 19. The control is synchronized with the control for the thread cutter 21, by means of which the thread is cut off at the end of the winding travel. The magnet 25 is activated again in the closing sense when the thread has been put back on the winding head at the beginning of a new winding trip and has been cut off between the winding and the suction tube.

Das Absaugrohr 1 mündet ein in eine sog. "Hochgeschwindigkeitsstrecke" 23. Hierbei handelt es sich um ein Rohr, das einen geringeren Durchmesser hat und das an das Absaugrohr durch eine düsenartige Verjüngung 31 luftdicht angeschlossen ist. Die Hochgeschwindigkeitsstrecke 23 ist an den Abfallbehälter 29 angeschlossen. Der Abfallbehälter 29 dient zum Sammeln des Fadenabfalls. Er ist mit einem Sauggebläse 27 verbunden, das in dem Abfallbehälter und damit auch in der Hochgeschwindigkeitsstrecke, dem Absaugrohr und dem Einsaugröhrchen einen Unterdruck bzw. eine Saugströmung hervorruft.The suction pipe 1 opens into a so-called "high-speed line" 23. This is a tube which has a smaller diameter and which is connected to the suction tube by a nozzle-like taper 31 in an airtight manner. The high-speed line 23 is connected to the waste container 29. The waste container 29 serves to collect the thread waste. It is connected to a suction fan 27, which causes a vacuum or suction flow in the waste container and thus also in the high-speed line, the suction pipe and the suction tube.

Am anderen Ende des Absaugrohres 1 ist ein Hilfsventil 5 vorgesehen. Das Hilfsventil kann ebenso wie in Fig. 1 eingerichtet sein. In dieser Ausführung nach Fig. 1 ermöglicht das Hilfsventil den Einlaß zusätzlicher Luft, wenn sich herausstellt, daß die durch die Einsaugröhrchen eingelassene Luftmenge zur sicheren Beförderung des Fadens im Absaugrohr 1 nicht ausreicht.An auxiliary valve 5 is provided at the other end of the suction pipe 1. The auxiliary valve can be set up as in FIG. 1. In this embodiment according to FIG. 1, the auxiliary valve allows additional air to be admitted if it turns out that the amount of air let in through the suction tube is not sufficient for the safe transport of the thread in the suction tube 1.

Bei der Ausführung nach Fig. 2 besteht das Hilfsventil aus drei zusätzlichen Einlaßöffnungen, die separat voneinander geöffnet und geschlossen werden können.2, the auxiliary valve consists of three additional inlet openings which can be opened and closed separately from one another.

Zur Funktion:About the function:

Durch das Sauggebläse 27 wird in dem Abfallbehälter 29 ein Unterdruck erzeugt. Der Abfallbehälter 29 ist hermetisch verschlossen. Dadurch wird über die Hochgeschwindigkeitsstrecke 23, das Absaugrohr 1 sowie die Saugröhrchen 3 (soweit sie geöffnet sind) Luft angesaugt. Dabei entsteht zunächst ein Druckgefälle an der Hochgeschwindigkeitsstrecke 23, da diese gegenüber dem Absaugrohr einen verengten Querschnitt hat. Dieses Druckgefälle setzt sich in eine entsprechende Geschwindigkeitserhöhung um. Weiterhin entsteht ein Druckgefälle innerhalb der Saugröhrchen 3.A vacuum is generated in the waste container 29 by the suction fan 27. The waste container 29 is hermetically sealed. As a result, air is drawn in via the high-speed line 23, the suction pipe 1 and the suction tubes 3 (insofar as they are open). This creates a pressure drop on the high-speed line 23 because it has a narrow cross section compared to the suction pipe. This pressure drop translates into a corresponding increase in speed. Furthermore, a pressure drop occurs within the suction tube 3.

Auch dieses Druckgefälle hat eine entsprechende Geschwindigkeitserhöhung der Luftströmung zur Folge. Der in das jeweilige Saugröhrchen eingesaugte Faden wird also sofort mit einer Luftströmung hoher Geschwindigkeit ergriffen und sicher in das Saugrohr befördert. Dort wird der Faden zusammen mit anderem Fadenmaterial zunächst mit geringerer Luftgeschwindigkeit bis zu der Hochgeschwindigkeitsstrecke 23 befördert und dort wiederum von der schnelleren Luftströmung abgezogen. Der Faden gelangt sodann in den Absaugbehälter, wo er zu Boden fällt. Auf jeden eingesaugte Faden wird also zum ersten in dem Einsaugröhrchen 3 und sodann in der Hochgeschwindigkeitsstrecke 23 eine Luftströmung hoher Strömungsgeschwindigkeit einwirken und dadurch in zwei Stufen eine Fadenspannung aufgebaut. Dabei gelangt jeder Faden infolge der Krümmung bzw. Abknickung des Saugröhrchens 3 nicht nur in die Randzone der Luftströmung sondern auch in die zentralen Bereiche der Luftströmung. Das hat den Vorteil, daß die zentralen Bereiche der Luftströmung eine große Luftgeschwindigkeit haben im Gegensatz zu den Randzonen.This pressure drop also results in a corresponding increase in the speed of the air flow. The thread sucked into the respective suction tube is thus immediately gripped with a high-speed air flow and conveyed safely into the suction tube. There, the thread, together with other thread material, is first conveyed to the high-speed line 23 at a lower air speed and there, in turn, is drawn off from the faster air flow. The thread then goes into the suction container, where it falls to the ground. For each thread that is sucked in, an air flow of high flow speed acts first in the suction tube 3 and then in the high-speed section 23, thereby building up a thread tension in two stages. As a result of the curvature or kinking of the suction tube 3, each thread not only reaches the edge zone of the air flow but also the central areas of the air flow. This has the advantage that the central areas of the air flow have a high air speed in contrast to the peripheral zones.

Auch die Krümmung des Hochgeschwindigkeitsabschnittes 23 dient dem Zweck, den Faden zumindest streckenweise in den Zentralbereich der Luftströmung zu führen.The curvature of the high-speed section 23 also serves the purpose of guiding the thread at least in sections into the central region of the air flow.

Während des Betriebes der jeweiligen Aufspulstelle ist das zugeordnete Einsaugröhrchen 3 durch das Ventil 15 verschlossen. Wenn die Spule voll ist, so wird ein Fadenschneider 21 betätigt, der zwischen dem Einsaugrohr und der Spule angeordnet ist. Mit der Betätigung dieses Fadenschneiders wird gleichzeitig auch der Magnet 25 des Ventils 15 angesteuert und das Ventil geöffnet. Dadurch wird der vor der Einsaugmündung des Saugröhrchens 3 laufende Faden von der Saugströmung erfaßt und in das Saugröhrchen hineingezogen.During the operation of the respective winding station, the associated suction tube 3 is closed by the valve 15. When the bobbin is full, a thread cutter 21 is actuated, which is arranged between the suction tube and the bobbin. When this thread cutter is actuated, the magnet 25 of the valve 15 is also activated and the valve is opened. As a result, the thread running in front of the suction mouth of the suction tube 3 is gripped by the suction flow and drawn into the suction tube.

Um in dem Absaugrohr 1 und insbesondere der Hochgeschwindigkeitsstrecke 23 eine ausreichend starke Saugströmung zu haben, ist eine bestimmte Luftmenge erforderlich. Diese Luftmenge wird automatisch bereitgestellt, wenn gleichzeitig mehrere Spulstellen bedient, d. h. mehrere Saugröhrchen geöffnet sind. In dem Ausführungsbeispiel wird als Beispiel davon ausgegangen, daß vier Saugröhrchen stets gleichzeitig geöffnet sein müssen. Wenn diese Bedingung nicht erfüllt ist, so kann zur Ergänzung der Luftströmung eine Anzahl der Hilfsventile 5 geöffnet werden, so daß stets vier Öffnungen für den Lufteintritt vorhanden sind. Wenn also nur ein Faden abgesaugt werden muß, so werden zusätzlich sämtliche drei Hilfsventile geöffnet. Wenn drei Fäden abgesaugt werden, so muß lediglich eines der Hilfsventile geöffnet sein.In order to have a sufficiently strong suction flow in the suction pipe 1 and in particular the high-speed section 23, a certain amount of air is required. This air volume is automatically provided if several winding units are operated at the same time, i. H. several suction tubes are open. In the exemplary embodiment it is assumed as an example that four suction tubes must always be open at the same time. If this condition is not met, a number of auxiliary valves 5 can be opened to supplement the air flow, so that there are always four openings for the air inlet. If only one thread has to be sucked off, all three auxiliary valves are additionally opened. If three threads are sucked off, only one of the auxiliary valves has to be opened.

Fig. 3 zeigt eine Alternative für ein Hilfsventil 5. Hierbei ist der Ventilkörper an einer druckbelasteten Membran befestigt.Fig. 3 shows an alternative for an auxiliary valve 5. Here, the valve body is attached to a pressure-loaded membrane.

Die Bereitstellung der ausreichenden Luftmenge geschieht bei der Ausführung des Hilfsventils nach Fig. 3 mit guter Annäherung automatisch. Das Hilfsventil nach Fig. 3 sieht wie folgt aus: Das Ende des Absaugrohres 1 ist verschlossen durch eine Membran 60. Diese Membran 60 weist zentral eine Einlaßöffnung 61 auf. Die Einlaßöffnung wird verschlossen durch einen Ventilkegel 62, der ortsfest an dem Absaugrohr 1 angebracht ist. Die Membran wird in ihrer Ruhestellung durch eine Feder 63 in die Schließrichtung gedrückt, so daß die Öffnung 61 ganz oder teilweise verschlossen ist. Wenn z. B. nur ein Faden abgesaugt wird, so erzeugt das Sauggebläse 27 in dem Saugrohr 1 einen starken Unterdruck. Daher ist die Membran des Hilfsventils 5 mit einer großen Druckdifferenz belastet gegen die auf die Membran einwirkende Federkraft. Dadurch öffnet sich das Hilfsventil 5. Wenn zwei oder mehr Fäden angesaugt werden, ist der in dem Absaugrohr 1 entstehende Unterdruck entsprechend geringer. Damit verringert sich auch die Auslenkung der Membran und die Öffnungswalze des Hilfsventils 5.The provision of the sufficient amount of air happens automatically when the auxiliary valve according to FIG. 3 is designed with a good approximation. 3 looks as follows: The end of the suction pipe 1 is closed by a membrane 60. This membrane 60 has a central inlet opening 61. The inlet opening is closed by a valve cone 62 which is fixedly attached to the suction pipe 1. In its rest position, the membrane is pressed in the closing direction by a spring 63, so that the opening 61 is completely or partially closed. If e.g. B. only one thread is sucked off, the suction fan 27 generates a strong negative pressure in the suction pipe 1. Therefore, the membrane of the auxiliary valve 5 is loaded with a large pressure difference against the spring force acting on the membrane. This opens it Auxiliary valve 5. If two or more threads are sucked in, the negative pressure which arises in the suction pipe 1 is correspondingly lower. This also reduces the deflection of the membrane and the opening roller of the auxiliary valve 5.

Dadurch wird gewährleistet, daß ein Faden, der vor der Einmündung eines jeden Einsaugröhrchens geführt wird, mit hoher Geschwindigkeit und hoher Zugkraft abgeführt werden kann. In der langsameren Saugströmung in dem Absaugrohr 1 bildet der Faden sodann ein Fadengewirr, Fadengewölle oder Fadenstopfen, der durch die Saugströmung bzw. den Druckunterschied in den Abfallbehälter abgeführt wird.This ensures that a thread that is guided before the mouth of each suction tube can be removed at high speed and high tensile force. In the slower suction flow in the suction pipe 1, the thread then forms a tangle, thread bulge or thread plug, which is discharged into the waste container by the suction flow or the pressure difference.

Fig. 4 zeigt eine Aufspuleinrichtung, in der die erfindungsgemäße Ablaufeinrichtung Anwendung findet. Diese Aufspuleinrichtung ist ebenfalls Gegenstand der Prioritätsanmeldung DE-A-4212241. Die Aufspulmaschine wird hier noch einmal wie folgt beschrieben:
Der durch die feststehende Fadenführung 40 und die Kimme 34 des Changierfadenführers 30 laufende Faden wird infolge der Hin- und Herbewegung des Changierfadenführers 30 als Kreuzwicklung auf der rotierenden Spule 14 aufgewickelt. Dabei läuft er oberhalb des Fadenhebers 42, des Messers 50 und des Zentrierers 52 und überstreicht eine im wesentlichen dreieckige Fläche (Changierdreieck), die um die Fadenüberlaufstange geknickt ist. Sowie die Kreuzwicklung einen vorgegebenen Durchmesser erreicht hat, wird von einer hier nicht gezeigten Vorrichtung ein das Ende der Spulreise anzeigendes Signal ausgelöst. Dieses Signal wird dem Antrieb 48 des Bügels 42 zugeführt. Das Signal löst eine Bewegung des Antriebs 48 in dem Sinne aus, daß der Bügel 42 in seine aufrecht stehende Stellung verschwenkt wird. Dabei hebt er den Faden 36 aus der Kimme 34 des Changierfadenführers 30. Infolge seiner Spannung und der Neigung der Arme 42c und 42d des Bügels 42 gleitet der Faden 36 den unter ihm liegenden Bügelarm 42c oder 42d entlang, ggf. über den Vorsprung 46 und durch den Spalt in die Kimme 44. Dabei gerät er unter den Vorsprung 46. Da die Spule unterdessen weiter rotiert, wird der Faden 36 auf eine Umfangsstelle der Spule 14 gelenkt, die im wesentlichen in der gleichen senkrechten Ebene liegt, wie die Bügelkimme 44, der Zentrierer 50 und der feststehende Fadenführer 40. Somit wird die Kreuzwicklung von einer aus mehreren Fadenwindungen bestehenden Abschlußwicklung 58 umschlungen. Nach Ablauf einer der Zahl der gewünschten Fadenwindungen entsprechenden Zeitspanne wird der Antrieb 48 erneut betätigt, dieses Mal im Sinne eines Zurückschwenkens des Bügels 42 in seine unter dem Changierdreieck gelegene Stellung. Gleichzeitig wird das Magnetventil 15 (Fig. 2) geöffnet.FIG. 4 shows a winding device in which the payoff device according to the invention is used. This winding device is also the subject of priority application DE-A-4212241. The winding machine is described here again as follows:
The thread running through the fixed thread guide 40 and the rear sight 34 of the traversing thread guide 30 is wound as a cross winding on the rotating bobbin 14 as a result of the reciprocating movement of the traversing thread guide 30. It runs above the thread lifter 42, the knife 50 and the centering device 52 and sweeps over an essentially triangular surface (traversing triangle) which is bent around the thread overflow rod. As soon as the cross winding has reached a predetermined diameter, a signal indicating the end of the winding travel is triggered by a device (not shown here). This signal is fed to the drive 48 of the bracket 42. The signal triggers a movement of the drive 48 in the sense that the Bracket 42 is pivoted into its upright position. He lifts the thread 36 out of the rear sight 34 of the traversing thread guide 30. As a result of its tension and the inclination of the arms 42c and 42d of the bracket 42, the thread 36 slides along the bracket arm 42c or 42d lying beneath it, possibly over the projection 46 and through the gap in the rear sight 44. It comes under the projection 46. Since the bobbin continues to rotate in the meantime, the thread 36 is directed to a circumferential location of the bobbin 14, which lies essentially in the same vertical plane as the bow rear sight 44, the Centerer 50 and the fixed thread guide 40. Thus, the cross winding is wrapped by a final winding 58 consisting of several thread turns. After a period of time corresponding to the number of desired thread windings, the drive 48 is actuated again, this time in the sense of pivoting the bracket 42 back into its position below the traversing triangle. At the same time, the solenoid valve 15 (FIG. 2) is opened.

Während dieser Schwenkbewegung wird der Faden 36 von dem Vorsprung 46 festgehalten, gegen die Messerschneide 50a geführt und an dieser geschnitten, d. h. der Faden 36 wird im wesentlichen in der erwähnten senkrechten Ebene geführt. Der Bügel 42 und sein Antrieb 48 ist daher identisch mit dem Fadenschneider nach Fig. 2, der dort nur symbolisch dargestellt ist. Gleichzeitig mit dem Schnitt wird das von dem feststehenden Fadenführer 40 kommende Ende des Fadens 36 vor das Saugrohr 3 der Saugvorrichtung geführt, von der Saugströmung erfasst und in den Abfallbehälter (s. Fig. 2) geführt. Das andere Ende des Fadens 36 wird in die Schlußwicklung 58 aufgenommen. Anschließend kann die Spule durch Lösen der Zentrierteller in bekannter Weise aus der Halterung 24 entnommen und durch eine Leerspule ersetzt werden.During this pivoting movement, the thread 36 is held by the projection 46, guided against the knife edge 50a and cut thereon, ie the thread 36 is guided essentially in the aforementioned vertical plane. The bracket 42 and its drive 48 is therefore identical to the thread cutter according to FIG. 2, which is only shown symbolically there. Simultaneously with the cut, the end of the thread 36 coming from the fixed thread guide 40 is guided in front of the suction pipe 3 of the suction device, is grasped by the suction flow and is guided into the waste container (see FIG. 2). The other end of the thread 36 is received in the final winding 58. The coil can then be removed from the holder 24 in a known manner by loosening the centering plate and replaced by an empty coil.

Wie eingangs angedeutet, eignet sich die erfindungsgemäße Vorrichtung auch zur Herstellung von Garnspulen ohne Schlußwicklung, wie sie unter bestimmten Voraussetzungen erwünscht sein mögen. Zu diesem Zweck braucht der Bügel 42 nur so weit angehoben zu werden, daß der Faden 36 von der Kimme 44 des Bügels 42 erfaßt und beim Rückschwenken des Bügels 42 in seine untere Stellung zwecks Abschneidens in das Messer 50 und vor die Mündung des Saugrohrs 3 geführt wird.As indicated at the outset, the device according to the invention is also suitable for producing yarn packages without a final winding, as may be desired under certain conditions. For this purpose, the bracket 42 only needs to be raised so far that the thread 36 is gripped by the rear sight 44 of the bracket 42 and, when the bracket 42 is pivoted back into its lower position for cutting in the knife 50 and in front of the mouth of the suction pipe 3 becomes.

Der Faden läuft nunmehr in das Saugröhrchen. Nunmehr kann die volle Spule von dem Spulenhalter abgenommen und eine Leerhülse eingesetzt werden. Anschließend greift ein Arm in den Fadenlauf des zu dem Absaugröhrchen laufenden Fadens und zieht den Faden zu einer Schlaufe aus. Ein Trum dieser Schlaufe wird sodann an die rotierende Leerhülse gelegt. Weitere Einzelheiten erübrigen sich hier, da sie nicht Gegenstand dieser Erfindung sind.The thread now runs into the suction tube. Now the full bobbin can be removed from the bobbin holder and an empty tube can be inserted. An arm then engages in the thread course of the thread running to the suction tube and pulls the thread out into a loop. A strand of this loop is then placed on the rotating empty tube. Further details are unnecessary here since they are not the subject of this invention.

Claims (4)

  1. Extraction device for a plurality of continuously running yarns (36) for extracting and removing the yarns as yarn waste,
    having an extraction tube (1), which along its length has a plurality of intake openings (2) and is connected to a vacuum pump (27) for generating a suction air flow (7), each intake opening taking the form of a small intake tube (3) which is fitted in an airtight manner onto the lateral surface of the extraction tube,
    characterized in that
    the extraction tube is connected to a waste container (29) by a high-speed section (23) having an inside diameter which is smaller than the inside diameter of the extraction tube, the high-speed section (23) being a tube which is connected by a nozzle-like taper (31) in an airtight manner to the extraction tube.
  2. Extraction device according to claim 1,
    characterized in that
    the inside diameter of the high-speed section (23) is 1/3 to 2/3 smaller than the inside diameter of the extraction tube.
  3. Extraction device according to claim 1 or 2,
    characterized in that
    the high-speed section (23) at least in sections is curved in such a manner that the yarn at least in sections is conveyed into the central region of the air flow.
  4. Extraction device according to one of claims 1 to 3,
    characterized in that
    the small intake tubes (3), while having a constant inside diameter over their length, are curved or bent.
EP93104208A 1992-04-11 1993-03-16 Suction device for a multitude of running yarns Expired - Lifetime EP0565878B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4212241 1992-04-11
DE4212241 1992-04-11
DE4241291 1992-12-08
DE4241291 1992-12-08

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EP0565878A1 EP0565878A1 (en) 1993-10-20
EP0565878B1 true EP0565878B1 (en) 1995-08-30

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US (1) US5423170A (en)
EP (1) EP0565878B1 (en)
JP (1) JPH0640661A (en)
KR (1) KR950014146B1 (en)
CN (1) CN1028629C (en)
DE (1) DE59300517D1 (en)
ES (1) ES2076805T3 (en)
TW (1) TW231315B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4343042A1 (en) * 2022-09-13 2024-03-27 TMT Machinery, Inc. Fiber waste collection device

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1265443B1 (en) * 1993-12-24 1996-11-22 Menegatto Srl YARN SUCTION DEVICE IN TEXTILE MACHINES
US6154569A (en) * 1995-03-16 2000-11-28 Kabushiki Kaisha Toshiba System and method for coding and/or decoding image including bit-map of different levels
EP1004534A3 (en) * 1998-11-26 2000-12-06 Murata Kikai Kabushiki Kaisha Yarn suction device and yarn suction and cut device
JP2001268565A (en) 2000-03-15 2001-09-28 Fuji Xerox Co Ltd Image encoding device and image decoding device
US6402436B1 (en) * 2000-04-28 2002-06-11 Eastman Chemical Company Method and device for conveying planar ribbon of crimped fiber using air jets
US6588056B2 (en) * 2001-10-05 2003-07-08 Pitney Bowes Inc. Web trim collection system
TWI279462B (en) * 2002-04-24 2007-04-21 Barmag Barmer Maschf Textile yarn processing apparatus having a waste collection system
KR20060123745A (en) * 2003-11-19 2006-12-04 사우레르 게엠베하 운트 캄파니 카게 False twist texturing machine
CN102139821A (en) * 2011-01-27 2011-08-03 上海交通大学 Variable cross-section diversion air duct for automatic bobbin winder
CN102285555A (en) * 2011-04-30 2011-12-21 上海交通大学 Bent pipe flow guide and ventilation device
CN102704068B (en) * 2012-06-25 2014-07-30 常德纺织机械有限公司摇架分公司 System for automatically cleaning tail yarns of roving bobbins
JP6228606B2 (en) * 2012-08-14 2017-11-08 インヴィスタ テキスタイルズ（ユー．ケー．）リミテッド Yarn packaging and delivery system
CN104150284A (en) * 2014-08-11 2014-11-19 张家港市华源染织有限公司 Bobbin of textile machine
WO2016144280A1 (en) * 2015-03-11 2016-09-15 Sanko Tekstil Isletmeleri Sanayi Ve Ticaret Anonim Sirketi Air-jet fancy yarn spinning system
CN105040166B (en) * 2015-08-05 2017-07-07 管伟 One kind is absorption to grab cotton hired roughneck
CN107090651A (en) * 2017-04-21 2017-08-25 东华大学 Weft yarn removal device during Weft Stoppage of Air-jet Loom
EP3838823A1 (en) * 2019-12-19 2021-06-23 Aladdin Manufacturing Corporation Yarn storage container and yarn storage system
CN111778630A (en) * 2020-07-31 2020-10-16 常州市新创智能科技有限公司 Waste silk suction device of carbon fiber warp knitting machine and using method

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780908A (en) * 1952-04-10 1957-02-12 Pneumafil Corp Control systems for spinning and roving frames
US2890563A (en) * 1955-08-31 1959-06-16 Seress George Pneumatic spinning frame cleaner
US2946174A (en) * 1957-06-19 1960-07-26 Wachovia Bank And Trust Compan Apparatus for doffing lint collection chambers
FR1203739A (en) * 1958-04-01 1960-01-20 Installation of integral dust removal by staggered suction with overlap
GB1146687A (en) * 1965-04-08 1969-03-26 Scragg & Sons Yarn-handling apparatus
US3391528A (en) * 1965-12-03 1968-07-09 John C. Shackelford Air handling and cleaning apparatus for machines
US3750922A (en) * 1971-12-30 1973-08-07 Celanese Corp Aspirator
US4022006A (en) * 1972-09-12 1977-05-10 Frederick Hugh Howorth Textile yarn processing machines
GB1381195A (en) * 1972-09-12 1975-01-22 Howorth Air Conditioning Ltd Machines for processing continuously running yarns
FR2229249A6 (en) * 1973-05-11 1974-12-06 Rhone Poulenc Textile Waste fibre extraction system - with water channel located under stations to wind fibres extruded through spinarettes
GB1433429A (en) * 1973-01-24 1976-04-28 Rhone Poulenc Textile Apparatus for the discharge of textile yarns waste from textile machines
DE2332327C3 (en) * 1973-06-26 1978-08-31 Schubert & Salzer Maschinenfabrik Ag, 8040 Ingolstadt Device for feeding, separating and rinsing the beginning of the thread onto a running bobbin
DE3000472A1 (en) * 1979-01-12 1980-07-31 Alsacienne Constr Meca MANUAL DEVICE FOR STARTING THE WRAP WITH THE FORMATION OF A THREAD STOCK ON A TEXTILE MACHINE EQUIPPED WITH A BOBBIN DEVICE
DE3642820A1 (en) * 1986-12-15 1988-07-07 Zinser Textilmaschinen Gmbh THREADBREAK SINGLE EXTRACTION PIPE
US5070688A (en) * 1988-07-25 1991-12-10 Murata Kikai Kabushiki Kaisha Cleaning device for cleaning a nozzle in a spinning apparatus
US5107668A (en) * 1989-06-19 1992-04-28 Barmag Ag Method of doffing packages of a textile machine as well as a textile machine
US5158241A (en) * 1989-06-19 1992-10-27 Barmag Ag Apparatus for cutting an advancing yarn
DE59300271D1 (en) * 1992-04-11 1995-07-27 Barmag Barmer Maschf Thread cutting device.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4343042A1 (en) * 2022-09-13 2024-03-27 TMT Machinery, Inc. Fiber waste collection device

Also Published As

Publication number Publication date
CN1028629C (en) 1995-05-31
DE59300517D1 (en) 1995-10-05
ES2076805T3 (en) 1995-11-01
US5423170A (en) 1995-06-13
KR950014146B1 (en) 1995-11-22
TW231315B (en) 1994-10-01
KR930021841A (en) 1993-11-23
EP0565878A1 (en) 1993-10-20
JPH0640661A (en) 1994-02-15
CN1079711A (en) 1993-12-22

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