EP1302428A1 - Yarn splicer - Google Patents

Yarn splicer Download PDF

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Publication number
EP1302428A1
EP1302428A1 EP02016537A EP02016537A EP1302428A1 EP 1302428 A1 EP1302428 A1 EP 1302428A1 EP 02016537 A EP02016537 A EP 02016537A EP 02016537 A EP02016537 A EP 02016537A EP 1302428 A1 EP1302428 A1 EP 1302428A1
Authority
EP
European Patent Office
Prior art keywords
thread
splicing device
channel
splice
compressed air
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.)
Withdrawn
Application number
EP02016537A
Other languages
German (de)
French (fr)
Inventor
Wolfgang Irmen
Bernhard Schmitz
Norbert Corres
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oerlikon Textile GmbH and Co KG
Original Assignee
W Schlafhorst AG and Co
Saurer GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by W Schlafhorst AG and Co, Saurer GmbH and Co KG filed Critical W Schlafhorst AG and Co
Publication of EP1302428A1 publication Critical patent/EP1302428A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H69/00—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device
    • B65H69/06—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing
    • B65H69/061—Methods of, or devices for, interconnecting successive lengths of material; Knot-tying devices ;Control of the correct working of the interconnecting device by splicing using pneumatic means
    • 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 thread splicing device according to the Preamble of claim 1.
  • Thread splicers are related to Automatic winding machines have been known for a long time and in numerous IP applications are described in detail.
  • DE 39 35 536 C2 describes, for example, a pneumatic thread splicing device with a splice head that has a splice channel that is almost circular in cross section. Tangentially arranged compressed air injection openings open into the splice channel, which has a continuous slot on the top for inserting the thread ends to be spliced. The thread insertion slot and thus the splice channel is closed by a cover element during the splicing process.
  • the thread ends to be spliced are prepared, that is, the thread ends are at least partially freed from their twist.
  • the thread ends can either be pneumatically, as described in DE 39 35 536 C2, via so-called thread-end opening tubes or, as described for example in DE 30 29 452 C2, mechanically by means of two counter-rotating friction disks.
  • the The invention is therefore based on the object Thread splicer to create that allows it too problematic yarns, especially fine and very fine yarns, connect securely.
  • a splice head according to the invention with at least one preferably centrally arranged compressed air injection opening and at least two further suction openings in the region of the splice channel which can be subjected to negative pressure has the particular advantage that the fibers which are largely parallel after the preparation of the thread ends are also securely in the splice channel during the actual splicing process stay fixed. This means that the pneumatic fixing of the fibers in the splice channel enables material to accumulate in the area of the connection openings, which makes it possible to create durable splices even with fine and very fine yarns.
  • suction openings under pressure in particular with mechanically prepared thread ends, that is to say with thread ends that have been turned between two counter-rotating friction disks, enable the neutralized thread rotation to be retained or stored until the actual splicing process.
  • This stored thread rotation can be released after the splicing process has taken place and then brings further strength to the thread connection point.
  • the individual suction openings are connected to a vacuum source via a common pneumatic line.
  • suction openings are connected to a separate vacuum source.
  • a pneumatic decoupling of the splicing device according to the invention from the regular vacuum system of the textile machine can ensure a largely uniform quality of the splice connections, since pressure fluctuations, which are almost inevitable in the vacuum system of a textile machine, can no longer affect the thread splicing device.
  • the separate vacuum source is designed, for example, as an injector nozzle (Claim 5).
  • an injector nozzle (Claim 5).
  • the use of such an injector nozzle is a cost-effective way to easily implement a reliable, additional vacuum generator.
  • the suction openings which can be subjected to negative pressure advantageously open into the wear channel in the region of the channel base.
  • the channel base has a U-shaped or V-shaped cross section, as set out in claims 7 and 8, respectively.
  • Such an advantageous shape of the splice channel base favors the parallel alignment of the fibers of the thread ends to be spliced and thereby leads to a uniform accumulation of material in the splice channel base.
  • FIG. 1 shows a front view of a textile machine, generally designated with the reference number 1, which in the exemplary embodiment is an automatic winder.
  • Such automatic winding machines usually have a large number of similar work stations, in the present case winding stations 2, between their end frames (not shown).
  • winding stations 2 On these winding units 2, as is known and therefore not explained in more detail, spinning reels 9, which were produced, for example, on a ring spinning machine, are rewound to form large-volume cross-wound bobbins 15.
  • cross-wound bobbins 15 are transferred to a machine-long cross-wound bobbin transport device 21 by means of an automatically operating service unit, preferably a cross-wound bobbin changer (not shown) and transported to a bobbin loading station or the like arranged on the machine end.
  • an automatically operating service unit preferably a cross-wound bobbin changer (not shown) and transported to a bobbin loading station or the like arranged on the machine end.
  • Such automatic winding machines 1 usually also have a logistic device in the form of a bobbin and tube transport system 3, in which spinning heads 9 or empty tubes circulate on transport plates 8 in a vertical orientation.
  • a logistic device in the form of a bobbin and tube transport system 3, in which spinning heads 9 or empty tubes circulate on transport plates 8 in a vertical orientation.
  • the cop feed path 4 the reversibly drivable storage path 5, one of the transverse transport paths 6 leading to the winding stations 2 and the core return path 7 are shown in FIG.
  • Such automatic winding machines 1 generally have via a (not shown) central control unit, which via a machine bus with both the separate Workstation computers 29 of the individual winding units 2 as well connected to a control device of the service unit is.
  • the delivered spinning heads 9 are in the Unwinding positions AS, which are each located in the area of the transverse transport sections 6 at the winding stations 2, are rewound to form large-volume cross-wound bobbins 15.
  • Unwinding positions AS which are each located in the area of the transverse transport sections 6 at the winding stations 2, are rewound to form large-volume cross-wound bobbins 15.
  • the individual winding units have various devices which ensure that these workplaces operate properly.
  • the thread connecting device 10 is preferably designed as a pneumatic splicer. As indicated in FIG. 1, the pneumatic thread splicing device 10 is somewhat set back with respect to the regular thread run and, as indicated in FIG. 2, has an upper thread clamping and cutting device 11 and a lower thread clamping and cutting device 17.
  • Such winding units 2 also have more, not facilities shown in greater detail, such as a thread tensioner, a thread cleaner, a waxing device, a Thread cutting device, a thread tension sensor and one Bobbin thread sensor.
  • winding devices 24 have, among other things, a bobbin frame 28 which is movably mounted about a pivot axis 13 and has a device for rotatably holding a bobbin.
  • the surface of the cross-wound bobbin 15, which is freely rotatably mounted in the bobbin frame 28, lies on a grooved drum 14 and is carried along by this via frictional engagement.
  • each winding unit 2 has a suction nozzle 12 and a gripper tube 25.
  • the suction nozzle 12 is rotatably supported to a limited extent about a pivot axis 16, the gripper tube 25 about a pivot axis 26.
  • FIG. 2 shows a perspective view of the thread connecting device 10, the suction nozzle 12 standing in a thread insertion position and the hook tube 25 arranged in a corresponding thread insertion position.
  • the suction nozzle 12 has retrieved the upper thread 31 from the cheese 15 and inserted it into the splice channel 20 of the splice head 19.
  • the lower thread 32 connected to the spinning cop 9 which is usually fixed in a thread tensioner (not shown) after a thread break, was picked up by the hook tube 25 and likewise inserted into the splice channel 20.
  • the splice head 19 is connected, for example, via a screw connection 27 to a base body 22 which has a plurality of pneumatic connections and in which, among other things, pneumatically actuated thread preparation tubes 18 are inserted.
  • a thread clamping and cutting device 11 and 17 is arranged above and below the base body 22 of the thread splicing device 10.
  • the upper thread 31 lies in the cutting element 17 ′′ of the thread clamping and cutting device 17 arranged below and in the clamping element 11 ′ of the upper thread clamping and cutting device 11.
  • the lower thread 32 is correspondingly in the clamping element 17 ′ of the lower thread cutting and clamping device 17 held and crosses the cutting element 11 ′′ of the upper thread cutting and clamping device 11.
  • FIG. 3 shows a front view of another Embodiment of a thread splicing device 10.
  • the thread splicing device 10 is within two mechanically working friction rings 42, 43 arranged, the are driven in opposite directions.
  • the front friction ring according to Figure 3 42 is, for example, counterclockwise, the rear one Friction ring 43 can be rotated clockwise to a limited extent.
  • the splice channel 20 of the splice head 19 has at least one compressed air injection opening 34 and at least two suction openings 33.
  • the compressed air injection opening 34 is connected to a compressed air source 36 via a pneumatic line 35, into which a directional valve 37 is switched on.
  • the suction openings 33 are connected via a line 39, which has a directional control valve 40, to a vacuum source 41. Both the directional control valve 37 and the directional control valve 40 can be controlled by the workstation computer 29 via a control line 38.
  • FIG. 4 shows the above-described thread splicing device 10 in side view.
  • the splicing head 19 which, as already indicated above, is preferably fixed to a base body 22 of the thread splicing device 10 via a screw connection 27, has a splice channel 20 which is open at the top.
  • suction openings 33 In addition to at least one, as a rule centrally arranged, compressed air injection opening 34, further suction openings 33, preferably symmetrically arranged with respect to the compressed air injection opening 34, open into the channel base 30. As already indicated above, these intake air openings 33 are connected to a vacuum source 41 via a vacuum line 39.
  • the suction nozzle 12 takes the accumulated on the cheese 15 Upper thread 31 and brings it to the thread splicing device 10. That is, the upper thread 31 received by the suction nozzle 12 is and in the splice channel 20 of the splice head 19 Thread splicing device 10, the clamping element 11 'of the upper and the cutting element 17 '' of the lower thread cutting and - clamping device 11 or 17 (see Fig. 2) threaded.
  • the thread tensioner will held lower thread 32 picked up by the hook tube 25.
  • the gripper tube 25 first swivels into the Area of the thread tensioner and sucks in the lower thread 32, which is released by the thread tensioner at the same time.
  • the gripper tube 25 then pivots into the Figures 2 and 3 indicated upper working position.
  • the lower thread 32 is also inserted into the splice channel 20 of the splice head 19.
  • the lower thread 32 then lies in the clamping element 17 'of the lower and in the cutting element 11''of the upper thread cutting and clamping device 17 or 11.
  • the thread ends of upper and lower thread 31 or 32 thus prepared are then pulled through a so-called (not shown) loop puller or the like into the splice channel 20, which, as can be seen from FIG. 5, has a channel base 30, for example U-shaped or V-shaped, in cross section , This means that the thread ends of the upper and lower thread 31, 32 slide into the channel base 30 of the splicing channel 20, where they are fixed pneumatically after opening the directional valve 40 via the suction openings 33 then subjected to negative pressure.
  • a plurality of compressed air injection openings 34 which can be arranged both radially and tangentially, can also open into the channel base 30.
  • the arrangement or number of suction openings 33 which can be subjected to negative pressure can also vary without thereby departing from the general inventive concept.

Landscapes

  • Spinning Or Twisting Of Yarns (AREA)

Abstract

A textile machine has a pneumatic thread-splicing head (19) with a splice channel (20) with one or more inlets (34) admitting a defined blast of compressed air. The splice channel esp. further has two or more air suction passages (33), one located each side of the compressed air inlet (34). <??>The suction outlets and compressed air inlet form a symmetrical array. The two suction outlets are both connected to a common vacuum source (41). The assembly further has a supplementary source of suction power which is an injector jet (54). The splicing channel is of essentially U- or V-shaped cross section. The suction passages enter the splicing channel at its base.

Description

Die Erfindung betrifft eine Fadenspleißvorrichtung gemäß dem Oberbegriff des Anspruches 1.The invention relates to a thread splicing device according to the Preamble of claim 1.

Fadenspleißvorrichtungen sind im Zusammenhang mit Kreuzspulautomaten seit langem bekannt und in zahlreichen Schutzrechtsanmeldungen ausführlich beschrieben.Thread splicers are related to Automatic winding machines have been known for a long time and in numerous IP applications are described in detail.

Die DE 39 35 536 C2 beschreibt beispielsweise eine pneumatische Fadenspleißvorrichtung mit einem Spleißkopf, der einen im Querschnitt nahezu kreisförmigen Spleißkanal aufweist. In den Spleißkanal, der auf seiner Oberseite über einen durchgehenden Schlitz zum Einlegen der zu verspleißenden Fadenenden verfügt, münden tangential angeordnete Druckluft-Einblasöffnungen.
Der Fadeneinlegeschlitz und damit der Spleißkanal wird während des Spleißprozesses durch ein Deckelelement verschlossen.DE 39 35 536 C2 describes, for example, a pneumatic thread splicing device with a splice head that has a splice channel that is almost circular in cross section. Tangentially arranged compressed air injection openings open into the splice channel, which has a continuous slot on the top for inserting the thread ends to be spliced.
The thread insertion slot and thus the splice channel is closed by a cover element during the splicing process.

Vor dem eigentlichen Spleißprozeß werden die zu verspleißenden Fadenenden vorbereitet, das heißt, die Fadenenden werden wenigstens teilweise von ihrer Garndrehung befreit.
Das Vorbereiten der Fadenenden kann dabei entweder, wie in der DE 39 35 536 C2 dargelegt, pneumatisch über sogenannte Fadenende-Auflöseröhrchen erfolgen oder, wie beispielsweise in der DE 30 29 452 C2 beschrieben, mechanisch durch zwei gegenläufige Reibscheiben. Before the actual splicing process, the thread ends to be spliced are prepared, that is, the thread ends are at least partially freed from their twist.
The thread ends can either be pneumatically, as described in DE 39 35 536 C2, via so-called thread-end opening tubes or, as described for example in DE 30 29 452 C2, mechanically by means of two counter-rotating friction disks.

Die bekannten Fadenspleißvorrichtungen haben sich in der Praxis im Prinzip bewährt, sie offenbaren allerdings Schwächen, wenn feine und feinste Garne gespleißt werden sollen.The known thread splicing devices have in the Practice has proven itself in principle, but it does reveal Weaknesses when fine and very fine yarns are spliced should.

Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung daher die Aufgabe zugrunde, eine Fadenspleißvorrichtung zu schaffen, die es ermöglicht, auch problematische Garne, insbesondere feine und feinste Garne, sicher zu verbinden.Based on the aforementioned prior art, the The invention is therefore based on the object Thread splicer to create that allows it too problematic yarns, especially fine and very fine yarns, connect securely.

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

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

Die erfindungsgemäße Ausbildung eines Spleißkopfes mit wenigstens einer vorzugsweise mittig angeordneten Druckluft-Einblasöffnung und wenigstens zwei weiteren mit Unterdruck beaufschlagbaren Ansaugöffnungen im Bereich des Spleißkanales hat insbesondere den Vorteil, daß die nach der Vorbereitung der Fadenenden weitestgehend parallel liegenden Fasern auch während des eigentlichen Spleißvorganges sicher im Spleißkanal fixiert bleiben.
Das heißt, durch die pneumatische Fixierung der Fasern im Spleißkanal kann eine Materialansammlung im Bereich der Anschlußöffnungen erzielt werden, die es ermöglicht, haltbare Spleiße auch bei feinen und feinsten Garnen zu erstellen. Des weiteren ermöglichen solche unterdruckbeaufschlagte Ansaugöffnungen, insbesondere bei mechanisch vorbereiteten Fadenenden, das heißt bei Fadenenden, die zwischen zwei gegenläufigen Reibscheiben aufgedreht wurden, ein Zurückhalten bzw. Speichern der neutralisierten Fadendrehung bis zum eigentlichen Spleißvorgang.
Diese gespeicherte Fadendrehung kann nach erfolgtem Spleißprozeß freigegeben werden und bringt dann weitere Festigkeit in die Fadenverbindungsstelle.The design of a splice head according to the invention with at least one preferably centrally arranged compressed air injection opening and at least two further suction openings in the region of the splice channel which can be subjected to negative pressure has the particular advantage that the fibers which are largely parallel after the preparation of the thread ends are also securely in the splice channel during the actual splicing process stay fixed.
This means that the pneumatic fixing of the fibers in the splice channel enables material to accumulate in the area of the connection openings, which makes it possible to create durable splices even with fine and very fine yarns. Furthermore, such suction openings under pressure, in particular with mechanically prepared thread ends, that is to say with thread ends that have been turned between two counter-rotating friction disks, enable the neutralized thread rotation to be retained or stored until the actual splicing process.
This stored thread rotation can be released after the splicing process has taken place and then brings further strength to the thread connection point.

Insbesondere durch die im Anspruch 2 beschriebene symmetrische Anordnung der mit Unterdruck beaufschlagbaren Ansaugöffnungen wird sichergestellt, daß die Fadenenden innerhalb des Spleißkanals in einem weitestgehend gestreckten Zustand gehalten werden, was sich sowohl auf das Aussehen und als auch auf die Haltbarkeit der Fadenverbindung positiv auswirkt.In particular by the symmetrical described in claim 2 Arrangement of the suction openings to which vacuum can be applied it is ensured that the thread ends within the Splice channel in a largely stretched condition be kept, which affects both the look and feel has a positive effect on the durability of the thread connection.

Wie im Anspruch 3 beschrieben, ist in bevorzugter Ausführungsform vorgesehen, daß die einzelnen Ansaugöffnungen über eine gemeinsame Pneumatikleitung an eine Unterdruckquelle angeschlossen sind.
Eine solche Ausbildung gewährleistet nicht nur eine gleichmäßige Beaufschlagung der zu verspleißenden Fadenenden, sondern stellt auch eine konstruktiv vorteilhafte, weil einfache Bauweise des Spleißkopfes dar.As described in claim 3, it is provided in a preferred embodiment that the individual suction openings are connected to a vacuum source via a common pneumatic line.
Such a design not only ensures a uniform loading of the thread ends to be spliced, but also represents a structurally advantageous, because simple construction of the splicing head.

Wie im Anspruch 4 dargelegt, ist in vorteilhafter Ausführungsform vorgesehen, daß die Ansaugöffnungen an eine separate Unterdruckquelle angeschlossen sind.
Durch eine solche pneumatische Abkopplung der erfindungsgemäßen Spleißvorrichtung vom regulären Unterdrucksystem der Textilmaschine kann eine weitestgehend gleichmäßige Qualität der Spleißverbindungen gewährleistet werden, da sich Druckschwankungen, wie sie im Unterdrucksystem einer Textilmaschine nahezu unvermeidlich sind, nicht mehr auf die Fadenspleißvorrichtung auswirken können.As stated in claim 4, it is provided in an advantageous embodiment that the suction openings are connected to a separate vacuum source.
Such a pneumatic decoupling of the splicing device according to the invention from the regular vacuum system of the textile machine can ensure a largely uniform quality of the splice connections, since pressure fluctuations, which are almost inevitable in the vacuum system of a textile machine, can no longer affect the thread splicing device.

Die separate Unterdruckquelle ist dabei beispielsweise als Injektordüse ausgebildet (Anspr.5).
Der Einsatz einer solchen Injektordüse stellt eine kostengünstige Möglichkeit dar, auf einfache Weise einen zuverlässigen, zusätzlichen Unterdruckerzeuger zu realisieren.The separate vacuum source is designed, for example, as an injector nozzle (Claim 5).
The use of such an injector nozzle is a cost-effective way to easily implement a reliable, additional vacuum generator.

Gemäß Anspruch 6 münden die mit Unterdruck beaufschlagbaren Ansaugöffnungen vorteilhafterweise im Bereich des Kanalgrundes in den Schleißkanal ein.
Der Kanalgrund weist dabei, wie in den Ansprüchen 7 bzw. 8 dargelegt, in bevorzugter Ausführungsform einen U- oder V-förmigen Querschnitt auf.
Eine solche vorteilhafte Form des Spleißkanalgrundes begünstigt die parallele Ausrichtung der Fasern der zu verspleißenden Fadenenden und führt dadurch zu einer gleichmäßigen Materialansammlung in Spleißkanalgrund.According to claim 6, the suction openings which can be subjected to negative pressure advantageously open into the wear channel in the region of the channel base.
In a preferred embodiment, the channel base has a U-shaped or V-shaped cross section, as set out in claims 7 and 8, respectively.
Such an advantageous shape of the splice channel base favors the parallel alignment of the fibers of the thread ends to be spliced and thereby leads to a uniform accumulation of material in the splice channel base.

Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles erläutert.The invention is described below with reference to the drawings illustrated embodiment explained.

Es zeigt:

Fig. 1
in Seitenansicht eine Arbeitsstelle eines Kreuzspulautomaten, mit einer erfindungsgemäßen Fadenspleißvorrichtung,
Fig. 2
in perspektivischer Ansicht eine erfindungsgemäße Fadenspleißvorrichtung mit pneumatisch beaufschlagbarem Spleißkopf sowie pneumatischen arbeitenden Fadenende-Vorbereitungsröhrchen,
Fig. 3
in Vorderansicht die erfindungsgemäße Fadenspleißvorrichtung mit besaugbarem Spleißkopf sowie mechanischen Reibscheiben zum Vorbereiten der Fadenenden,
Fig. 4
die Fadenspleißvorrichtung gemäß Fig.3, in Seitenansicht,
Fig. 5
den pneumatisch beaufschlagbaren Spleißkopf einer erfindungsgemäßen Fadenspleißvorrichtung in einem größeren Maßstab.
It shows:
Fig. 1
in side view a work station of a cheese winder, with a thread splicing device according to the invention,
Fig. 2
a perspective view of a thread splicing device according to the invention with a pneumatically actuated splice head and pneumatic working thread end preparation tube,
Fig. 3
in front view the thread splicing device according to the invention with suction-absorbing splicing head and mechanical friction disks for preparing the thread ends,
Fig. 4
the thread splicing device according to Figure 3, in side view,
Fig. 5
the pneumatically actuated splice head of a thread splicing device according to the invention on a larger scale.

In Figur 1 ist in Vorderansicht schematisch eine insgesamt mit der Bezugszahl 1 gekennzeichnete Kreuzspulen herstellende Textilmaschine, im Ausführungsbeispiel ein Kreuzspulautomat, dargestellt.
Derartige Kreuzspulautomaten weisen üblicherweise zwischen ihren (nicht dargestellten) Endgestellen eine Vielzahl gleichartiger Arbeitsstellen, im vorliegenden Fall Spulstellen 2, auf.
Auf diesen Spulstellen 2 werden, wie bekannt und daher nicht näher erläutert, Spinnkopse 9, die beispielsweise auf einer Ringspinnmaschine produziert wurden, zu großvolumigen Kreuzspulen 15 umgespult.
Nach ihrer Fertigstellung werden diese Kreuzspulen 15 mittels eines selbsttätig arbeitenden Serviceaggregates, vorzugsweise eines (nicht dargestellten) Kreuzspulenwechslers, auf eine maschinenlange Kreuzspulentransporteinrichtung 21 übergeben und zu einer maschinenendseitig angeordneten Spulenverladestation oder dergleichen transportiert.FIG. 1 shows a front view of a textile machine, generally designated with the reference number 1, which in the exemplary embodiment is an automatic winder.
Such automatic winding machines usually have a large number of similar work stations, in the present case winding stations 2, between their end frames (not shown).
On these winding units 2, as is known and therefore not explained in more detail, spinning reels 9, which were produced, for example, on a ring spinning machine, are rewound to form large-volume cross-wound bobbins 15.
After their completion, these cross-wound bobbins 15 are transferred to a machine-long cross-wound bobbin transport device 21 by means of an automatically operating service unit, preferably a cross-wound bobbin changer (not shown) and transported to a bobbin loading station or the like arranged on the machine end.

Üblicherweise weisen solche Kreuzspulautomaten 1 außerdem eine Logistikeinrichtung in Form eines Spulen- und Hülsentransportsystems 3 auf, in dem, auf Transporttellern 8 in vertikaler Ausrichtung, Spinnkopse 9 beziehungsweise Leerhülsen umlaufen.
Von diesem Sulen-und Hülsentransportsystem 3 sind in Figur 1 lediglich die Kopszuführstrecke 4, die reversierend antreibbare Speicherstrecke 5, eine der zu den Spulstellen 2 führenden Quertransportstrecken 6 sowie die Hülsenrückführstrecke 7 dargestellt.Such automatic winding machines 1 usually also have a logistic device in the form of a bobbin and tube transport system 3, in which spinning heads 9 or empty tubes circulate on transport plates 8 in a vertical orientation.
Of this column and core transport system 3, only the cop feed path 4, the reversibly drivable storage path 5, one of the transverse transport paths 6 leading to the winding stations 2 and the core return path 7 are shown in FIG.

Des weiteren verfügen solche Kreuzspulautomaten 1 in der Regel über eine (nicht dargestellte) Zentralsteuereinheit, die über einen Maschinenbus sowohl mit den separaten Arbeitsstellenrechnern 29 der einzelnen Spulstellen 2 als auch mit einer Steuereinrichtung des Serviceaggregates verbunden ist.Furthermore, such automatic winding machines 1 generally have via a (not shown) central control unit, which via a machine bus with both the separate Workstation computers 29 of the individual winding units 2 as well connected to a control device of the service unit is.

Die angelieferten Spinnkopse 9 werden in den
Abspulstellungen AS, die sich jeweils im Bereich der Quertransportstrecken 6 an den Spulstellen 2 befinden, zu großvolumigen Kreuzspulen 15 umgespult.
Die einzelnen Spulstellen verfügen zu diesem Zweck, wie bekannt und daher nur angedeutet, über verschiedene Einrichtungen, die einen ordnungsgemäßen Betrieb dieser Arbeitsstellen gewährleisten. The delivered spinning heads 9 are in the
Unwinding positions AS, which are each located in the area of the transverse transport sections 6 at the winding stations 2, are rewound to form large-volume cross-wound bobbins 15.
For this purpose, as is known and therefore only hinted at, the individual winding units have various devices which ensure that these workplaces operate properly.

Diese Einrichtungen sind beispielsweise eine Saugdüse 12, ein Greiferrohr 25 sowie eine Fadenverbindungseinrichtung 10.
Die Fadenverbindungseinrichtung 10 ist dabei vorzugsweise als pneumatischer Spleißer ausgebildet.
Wie in Figur 1 angedeutet ist die pneumatische Fadenspleißvorrichtung 10 dabei bezüglich des regulären Fadenlaufes etwas zurückgesetzt und besitzt beispielsweise, wie in Figur 2 angedeutet, eine obere Fadenklemm- und -schneideinrichtung 11 und eine untere Fadenklemm- und -schneideinrichtung 17.These devices are, for example, a suction nozzle 12, a gripper tube 25 and a thread connecting device 10.
The thread connecting device 10 is preferably designed as a pneumatic splicer.
As indicated in FIG. 1, the pneumatic thread splicing device 10 is somewhat set back with respect to the regular thread run and, as indicated in FIG. 2, has an upper thread clamping and cutting device 11 and a lower thread clamping and cutting device 17.

Solche Spulstellen 2 verfügen außerdem über weitere, nicht näher dargestellte Einrichtungen, wie einen Fadenspanner, einen Fadenreiniger, eine Paraffiniereinrichtung, eine Fadenschneideinrichtung, einen Fadenzugkraftsensor sowie einen Unterfadensensor.Such winding units 2 also have more, not facilities shown in greater detail, such as a thread tensioner, a thread cleaner, a waxing device, a Thread cutting device, a thread tension sensor and one Bobbin thread sensor.

Das Wickeln der Kreuzspulen 15 erfolgt dabei auf sogenannten Spulvorrichtungen 24. Derartige Spulvorrichtung 24 verfügen unter anderem über einen Spulenrahmen 28, der um eine Schwenkachse 13 beweglich gelagert ist und eine Einrichtung zum drehbaren Haltern einer Kreuzspulenhülse aufweist.
Während des Spulprozesses liegt die im Spulenrahmen 28 frei drehbar gelagerte Kreuzspule 15 mit ihrer Oberfläche auf einer Nuttrommel 14 und wird von dieser über Reibschluß mitgenommen.The winding of the cross-wound bobbins 15 takes place on so-called winding devices 24. Such winding devices 24 have, among other things, a bobbin frame 28 which is movably mounted about a pivot axis 13 and has a device for rotatably holding a bobbin.
During the winding process, the surface of the cross-wound bobbin 15, which is freely rotatably mounted in the bobbin frame 28, lies on a grooved drum 14 and is carried along by this via frictional engagement.

Wie vorstehend bereits angedeutet, verfügt jede Spulstelle 2 über eine Saugdüse 12 sowie ein Greiferrohr 25.
Die Saugdüse 12 ist dabei um eine Schwenkachse 16, das Greiferrohr 25 um eine Schwenkachse 26 begrenzt drehbar gelagert. As already indicated above, each winding unit 2 has a suction nozzle 12 and a gripper tube 25.
The suction nozzle 12 is rotatably supported to a limited extent about a pivot axis 16, the gripper tube 25 about a pivot axis 26.

Die Figur 2 zeigt in perspektivischer Ansicht die Fadenverbindungseinrichtung 10, die in einer Fadeneinlegeposition stehende Saugdüse 12 sowie das in einer entsprechenden Fadeneinlegeposition angeordnete Greiferrohr 25.
Die Saugdüse 12 hat dabei den Oberfaden 31 von der Kreuzspule 15 zurückgeholt und in den Spleißkanal 20 des Spleißkopfes 19 eingelegt. Außerdem wurde der mit dem Spinnkops 9 verbundene Unterfaden 32, der nach einem Fadenbruch in der Regel in einem (nicht dargestellten) Fadenspanner fixiert ist, durch das Greiferrohr 25 abgeholt und ebenfalls in den Spleißkanal 20 eingelegt.FIG. 2 shows a perspective view of the thread connecting device 10, the suction nozzle 12 standing in a thread insertion position and the hook tube 25 arranged in a corresponding thread insertion position.
The suction nozzle 12 has retrieved the upper thread 31 from the cheese 15 and inserted it into the splice channel 20 of the splice head 19. In addition, the lower thread 32 connected to the spinning cop 9, which is usually fixed in a thread tensioner (not shown) after a thread break, was picked up by the hook tube 25 and likewise inserted into the splice channel 20.

Wie in Figur 2 angedeutet, ist der Spleißkopf 19 zum Beispiel über eine Schraubverbindung 27 an einen Grundkörper 22 angeschlossen, der mehrere pneumatische Anschlüsse aufweist und in den unter anderem pneumatisch beaufschlagbare Fadenende-Vorbereitungsröhrchen 18 eingelassen sind.
Ober- und unterhalb des Grundkörpers 22 der Fadenspleißvorrichtung 10 ist dabei jeweils eine Fadenklemmund -schneideinrichtung 11 beziehungsweise 17 angeordnet. Wie ersichtlich liegt der Oberfaden 31 im Schneidelement 17'' der unten angeordneten Fadenklemm- und -schneideinrichtung 17 sowie im Klemmelement 11' der oberen Fadenklemm- und -schneideinrichtung 11. Der Unterfaden 32 ist entsprechend im Klemmelement 17' der unteren Fadenschneid- und -klemmeinrichtung 17 gehalten und kreuzt das Schneidelement 11'' der oberen Fadenschneid- und -klemmeinrichtung 11.As indicated in FIG. 2, the splice head 19 is connected, for example, via a screw connection 27 to a base body 22 which has a plurality of pneumatic connections and in which, among other things, pneumatically actuated thread preparation tubes 18 are inserted.
A thread clamping and cutting device 11 and 17 is arranged above and below the base body 22 of the thread splicing device 10. As can be seen, the upper thread 31 lies in the cutting element 17 ″ of the thread clamping and cutting device 17 arranged below and in the clamping element 11 ′ of the upper thread clamping and cutting device 11. The lower thread 32 is correspondingly in the clamping element 17 ′ of the lower thread cutting and clamping device 17 held and crosses the cutting element 11 ″ of the upper thread cutting and clamping device 11.

Die Fig.3 zeigt eine Vorderansicht auf eine weitere Ausführungsform einer Fadenspleißvorrichtung 10. 3 shows a front view of another Embodiment of a thread splicing device 10.

Die Fadenspleißvorrichtung 10 ist dabei innerhalb zweier mechanisch arbeitender Reibringe 42, 43 angeordnet, die gegenläufig antreibbar sind. Der gemäß Fig.3 vordere Reibring 42 ist beispielsweise im Gegenuhrzeigersinn, der hintere Reibring 43 im Uhrzeigersinn begrenzt drehbar.The thread splicing device 10 is within two mechanically working friction rings 42, 43 arranged, the are driven in opposite directions. The front friction ring according to Figure 3 42 is, for example, counterclockwise, the rear one Friction ring 43 can be rotated clockwise to a limited extent.

Wie aus Figur 3 weiter ersichtlich, weist der Spleißkanal 20 des Spleißkopfes 19 mindestens eine Druckluft-Einblasöffnung 34 sowie wenigstens zwei Ansaugöffnungen 33 auf.
Die Druckluft-Einblasöffnung 34 ist dabei über eine Pneumatikleitung 35, in die ein Wegeventil 37 eingeschaltet ist, mit einer Druckluftquelle 36 verbunden.
Die Ansaugöffnungen 33 sind über eine Leitung 39, die ein Wegeventil 40 aufweist, an eine Unterdruckquelle 41 angeschlossen.
Sowohl das Wegeventil 37 als auch das Wegeventil 40 sind durch den Arbeitsstellenrechner 29 über eine Steuerleitung 38 ansteuerbar.As can also be seen from FIG. 3, the splice channel 20 of the splice head 19 has at least one compressed air injection opening 34 and at least two suction openings 33.
The compressed air injection opening 34 is connected to a compressed air source 36 via a pneumatic line 35, into which a directional valve 37 is switched on.
The suction openings 33 are connected via a line 39, which has a directional control valve 40, to a vacuum source 41.
Both the directional control valve 37 and the directional control valve 40 can be controlled by the workstation computer 29 via a control line 38.

Die Fig.4 zeigt die vorbeschriebene Fadenspleißvorrichtung 10 in Seitenansicht.4 shows the above-described thread splicing device 10 in side view.

In Fig.5 ist der konstruktive Aufbau des erfindungsgemäßen Spleißkopfes 19 näher dargestellt.
Der Spleißkopf 19, der, wie vorstehend bereits angedeutet, vorzugsweise über eine Schraubverbindung 27 an einem Grundkörper 22 der Fadenspleißvorrichtung 10 festgelegt ist, verfügt über einen nach oben offenen Spleißkanal 20.5 shows the structural design of the splice head 19 according to the invention in more detail.
The splicing head 19, which, as already indicated above, is preferably fixed to a base body 22 of the thread splicing device 10 via a screw connection 27, has a splice channel 20 which is open at the top.

Der Spleißkanal 20, der über ein gestrichelt dargestelltes Deckelelement 23 verschließbar ist, weist einen Kanalgrund 30 mit einem im Ausführungsbeispiel U-förmigen Querschnitt auf. The splice channel 20, which is shown by a dashed line Cover element 23 can be closed, has a channel base 30 with a U-shaped cross section in the exemplary embodiment.

In den Kanalgrund 30 münden neben wenigstens einer, in der Regel mittig angeordneten Druckluft-Einblasöffnung 34 weitere, vorzugsweise bezüglich der Druckluft-Einblasöffnung 34 symmetrisch angeordnete Ansaugöffnungen 33 ein.
Diese Ansaugluftöffnungen 33 sind, wie vorstehend bereits angedeutet, über eine Unterdruckleitung 39 an eine Unterdruckquelle 41 angeschlossen.In addition to at least one, as a rule centrally arranged, compressed air injection opening 34, further suction openings 33, preferably symmetrically arranged with respect to the compressed air injection opening 34, open into the channel base 30.
As already indicated above, these intake air openings 33 are connected to a vacuum source 41 via a vacuum line 39.

Funktion der Einrichtung:Function of the facility:

Wenn es an einer der Spulstellen 2 des Kreuzspulautomaten 1 zu einer Spulunterbrechung gekommen ist, beispielsweise aufgrund eines regulären Reinigerschnittes oder eines Fadenbruches, nimmt die Saugdüse 12 den auf die Kreuzspule 15 aufgelaufene Oberfaden 31 auf und bringt ihn zur Fadenspleißeinrichtung 10. Das heißt, der durch die Saugdüse 12 aufgenommene Oberfadem 31 wird und in den Spleißkanal 20 des Spleißkopfes 19 der Fadenspleißvorrichtung 10 , das Klemmelement 11' der oberen und das Schneidelement 17'' der unteren Fadenschneid- und - klemmeinrichtung 11 beziehungsweise 17 ein (siehe Fig.2) eingefädelt.If it is at one of the winding units 2 of the automatic winder 1 a winding interruption has come, for example due to a regular cleaner cut or a thread break, the suction nozzle 12 takes the accumulated on the cheese 15 Upper thread 31 and brings it to the thread splicing device 10. That is, the upper thread 31 received by the suction nozzle 12 is and in the splice channel 20 of the splice head 19 Thread splicing device 10, the clamping element 11 'of the upper and the cutting element 17 '' of the lower thread cutting and - clamping device 11 or 17 (see Fig. 2) threaded.

Gleichzeitig oder anschließend wird der im Fadenspanner gehaltene Unterfaden 32 durch das Greiferrohr 25 abgeholt. Das Greiferrohr 25 schwenkt zu diesem Zweck zunächst in den Bereich des Fadenspanners und saugt dort den Unterfaden 32 an, der gleichzeitig vom Fadenspanner freigegeben wird. Das Greiferrohres 25 schwenkt anschließend in die in den Figuren 2 und 3 angedeutete obere Arbeitsposition. At the same time or afterwards, the thread tensioner will held lower thread 32 picked up by the hook tube 25. For this purpose, the gripper tube 25 first swivels into the Area of the thread tensioner and sucks in the lower thread 32, which is released by the thread tensioner at the same time. The gripper tube 25 then pivots into the Figures 2 and 3 indicated upper working position.

Während dieser Schwenkbewegung wird der Unterfaden 32, wie beispielsweise in den Figur 2 und 3 dargestellt, ebenfalls in den Spleißkanal 20 des Spleißkopfes 19 eingelegt.
Außerdem liegt der Unterfaden 32 dann im Klemmelement 17' der unteren und im Schneidelement 11'' der oberen Fadenschneidund -klemmeinrichtung 17 beziehungsweise 11.During this pivoting movement, the lower thread 32, as shown for example in FIGS. 2 and 3, is also inserted into the splice channel 20 of the splice head 19.
In addition, the lower thread 32 then lies in the clamping element 17 'of the lower and in the cutting element 11''of the upper thread cutting and clamping device 17 or 11.

Nach dem Verschließen des Spleißkopfes 19 mit dem Deckelelement 23 werden die in den Fadenschneid- und - klemmeinrichtungen 11 und 17 fixierten Fäden 31, 32 geschnitten, wobei das abgeschnittene Fadenende des Unterfadens 32 durch das Greiferrohr 25 und das abgeschnittene Fadenende des Oberfadens 31 durch die Saugdüse 12 entsorgt wird.After closing the splice head 19 with the Cover element 23 are in the thread cutting and - clamping devices 11 and 17 fixed threads 31, 32 cut, the cut thread end of the Lower thread 32 through the hook tube 25 and the cut Thread end of the upper thread 31 disposed of by the suction nozzle 12 becomes.

Gleichzeitig werden die aus dem Spleißkanal 20 herausragenden Fadenenden von Oberfaden 31 und Unterfaden 32 jeweils in eins der unterdruckbeaufschlagten Fadenende-Vorbereitungsröhrchen 18 eingesaugt und dort, vorzugsweise pneumatisch, wenigstens teilweise von ihrer Fadendrehung befreit.At the same time, the protruding from the splice channel 20 Thread ends of upper thread 31 and lower thread 32 each in one the thread-end preparation tube under vacuum 18 sucked in and there, preferably pneumatic, at least partially from their twist freed.

Anschließend werden die so vorbereiteten Fadenenden von Oberund Unterfaden 31 bzw. 32 durch einen sogenannten (nicht dargestellten) Schlaufenzieher oder dergleichen in den Spleißkanal 20 gezogen, der, wie aus Figur 5 ersichtlich, einen im Querschnitt beispielsweise U- oder V-förmigen Kanalgrund 30 aufweist.
Das heißt, die Fadenenden des Ober- und Unterfadens 31, 32 gleiten in den Kanalgrund 30 des Spleißkanals 20, wo sie nach Öffnen des Wegeventiles 40 über die dann mit Unterdruck beaufschlagten Ansaugöffnungen 33 pneumatisch fixiert werden. The thread ends of upper and lower thread 31 or 32 thus prepared are then pulled through a so-called (not shown) loop puller or the like into the splice channel 20, which, as can be seen from FIG. 5, has a channel base 30, for example U-shaped or V-shaped, in cross section ,
This means that the thread ends of the upper and lower thread 31, 32 slide into the channel base 30 of the splicing channel 20, where they are fixed pneumatically after opening the directional valve 40 via the suction openings 33 then subjected to negative pressure.

Die im Kanalgrund 30 des Spleißkanales 20 zunächst nahezu parallel angeordneten Einzelfasern der Fadenenden von Unterfaden 31 und Oberfaden 32 werden anschließend durch einen Spleißluftstoß, der aus der Druckluft-Einblasöffnung 34 austritt und durch Öffnen des Wegeventiles 37 initiiert wird, miteinander verwirbelt.
Das heißt, die beiden Fadenenden von Unterfaden 32 und oberfaden 31 werden pneumatisch verspleißt.The individual fibers of the thread ends of the lower thread 31 and upper thread 32, which are initially arranged almost parallel in the channel base 30 of the splice channel 20, are then intermingled by a burst of splice air which emerges from the compressed air injection opening 34 and is initiated by opening the directional valve 37.
This means that the two thread ends of the lower thread 32 and upper thread 31 are pneumatically spliced.

Die Erfindung ist nicht auf die dargestellten Ausführungsbeispiele beschränkt.
In den Kanalgrund 30 können beispielsweise auch mehrere Druckluft-Einblasöffnungen 34 einmünden, die sowohl radial als auch tangential angeordnet sein können.
Auch die Anordnung oder Anzahl der unterdruckbeaufschlagbaren Ansaugöffnungen 33 kann variieren, ohne daß dadurch der allgemeine Erfindungsgedanke verlassen wird.The invention is not restricted to the exemplary embodiments shown.
A plurality of compressed air injection openings 34, which can be arranged both radially and tangentially, can also open into the channel base 30.
The arrangement or number of suction openings 33 which can be subjected to negative pressure can also vary without thereby departing from the general inventive concept.

Claims (8)

Fadenspleißvorrichtung zum pneumatischen Verbinden zweier Fadenenden, mit einem auf einem Grundkörper festlegbaren Spleißkopf, der einen Spleißkanal mit wenigstens einer definiert beaufschlagbaren Druckluft-Einblasöffnung aufweist,
dadurch gekennzeichnet, daß der Spleißkanal (20) über wenigsten zwei zusätzliche mit Unterdruck beaufschlagbare Ansaugöffnungen (33) verfügt, die beidseitig der Druckluft-Einblasöffnung (34) angeordnet sind.Thread splicing device for the pneumatic connection of two thread ends, with a splicing head which can be fixed on a base body and which has a splicing channel with at least one compressed air injection opening which can be acted upon in a defined manner,
characterized in that the splice channel (20) has at least two additional suction openings (33) which can be subjected to negative pressure and which are arranged on both sides of the compressed air injection opening (34). Fadenspleißvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Ansaugöffnungen (33) symmetrisch zur Druckluft-Einblasöffnung (34) angeordnet sind.Thread splicing device according to claim 1, characterized in that the suction openings (33) are arranged symmetrically to the compressed air injection opening (34). Fadenspleißvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Ansaugöffnungen (33) über eine gemeinsame Unterdruckleitung (39) an eine Unterdruckquelle (41) angeschlossen sind.Thread splicing device according to claim 1, characterized in that the suction openings (33) are connected to a vacuum source (41) via a common vacuum line (39). Fadenspleißvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß eine zusätzliche, separate Unterdruckquelle (54) vorgesehen ist.Thread splicing device according to claim 3, characterized in that an additional, separate vacuum source (54) is provided. Fadenspleißvorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Unterdruckquelle (54) als Injektordüse ausgebildet ist. Thread splicing device according to claim 4, characterized in that the vacuum source (54) is designed as an injector nozzle. Fadenspleißvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Ansaugöffnungen (33) im Bereich eines Spleißkanalgrundes (30) in den Spleißkanal (28) einmünden.Thread splicing device according to claim 1, characterized in that the suction openings (33) open into the splice channel (28) in the region of a splice channel base (30). Fadenspleißvorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Spleißkanalgrund (30) einen im wesentlichen U-förmigen Querschnitt aufweist.Thread splicing device according to claim 6, characterized in that the splice channel base (30) has a substantially U-shaped cross section. Fadenspleißvorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Spleißkanalgrund (30) einen im wesentlichen V-förmigen Querschnitt aufweist.Thread splicing device according to claim 6, characterized in that the splice channel base (30) has a substantially V-shaped cross section.
EP02016537A 2001-10-12 2002-07-24 Yarn splicer Withdrawn EP1302428A1 (en)

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DE102006000824A1 (en) * 2006-01-05 2007-07-12 Saurer Gmbh & Co. Kg Yarn splicing device for a cross-wound textile machine
CZ301752B6 (en) * 2005-12-20 2010-06-16 Rieter Cz S.R.O. Method for recovery of component yarn spinning, particularly on rotor spinning machine, using a splicer, and apparatus for making the same

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