EP2574580B1 - Comb bar for a suction nozzle for a workstation of a textile machine for creating cross-wound spools - Google Patents
Comb bar for a suction nozzle for a workstation of a textile machine for creating cross-wound spools Download PDFInfo
- Publication number
- EP2574580B1 EP2574580B1 EP12006278.1A EP12006278A EP2574580B1 EP 2574580 B1 EP2574580 B1 EP 2574580B1 EP 12006278 A EP12006278 A EP 12006278A EP 2574580 B1 EP2574580 B1 EP 2574580B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- comb bar
- suction nozzle
- thread
- teeth
- region
- 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.)
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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
- B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
- B65H67/08—Automatic end-finding and material-interconnecting arrangements
- B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
- B65H67/085—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement end-finding at the take-up package, e.g. by suction and reverse package rotation
-
- 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 comb strip for a suction nozzle of a workstation of a cheese-producing textile machine according to the preamble of claim 1.
- the workstation computer ensures that, as in the DE 40 05 752 A1 described, first a so-called suction nozzle with its suction port is applied to the surface of a slowly rotating against the winding direction of package and subjected to negative pressure.
- the suction nozzle tries to take with its suction the yarn end of the upper thread pneumatically from the surface of the package designed as a cross-wound bobbin. After detecting the upper thread end, the suction nozzle pivots back to its original position, in which the suction opening of the suction nozzle is positioned below a yarn splicing device.
- the yarn strand extending between the cross-wound bobbin and the suction nozzle is guided into an electronic thread cleaner arranged above the yarn joining device, a yarn clamping device positioned in the region of the yarn joining device and, guided by corresponding guide contours of yarn guide plates and yarn guide bars, into the scissors a thread cutting device located below the splicing device retracted.
- a gripper tube positioned in a lower starting position pivots into an upper working position, bringing with it a lower thread that has been held until then, for example in a thread tensioner, drawn from the supply spool.
- Such arranged in the region of the suction port of a suction comb strips are known and, for example in the DE 10 2006 039 735 A1 or in the EP 0 398 415 A1 described in relative detail.
- a suction nozzle which has a particularly advantageous intake behavior due to the special design of its suction nozzle head.
- This advantageous suction nozzle is additionally equipped in the region of its intake opening with a comb strip which is arranged on the cover element of the suction nozzle head and has a row of adjacently arranged, equal-length teeth.
- EP 0 398 415 A1 By the EP 0 398 415 A1 also comb strips are known, which are arranged in the region of the suction opening of a suction nozzle. In the EP 0 398 415 A1 also describes how such comb strips can be made. That is, in this patent application it is stated that such comb strips are produced, for example, by means of a laser cutting device, wherein initially a stack of base plates is severed so that in each case a large number of teeth of the same size are formed in the region of the cutting edges.
- suction nozzles which are equipped in the region of their suction either with a needle comb or in which one of the Saugdüsewandungen in the region of the suction port is roughened like sandpaper.
- the AT-PS 368 106 describes a suction nozzle, which is equipped in the region of its suction with a special Fadenabhebe Anlagen.
- the Fadenabhebe interests has in this case a circulating with the cross-wound roller and a trained as a multi-screw worm contact roller.
- the by the AT-PS 368 106 known, relatively complex and sensitive device could not prevail in practice.
- suction nozzles which, as described above, are equipped with comb strips, in the pneumatic yarn end recording already have significantly higher success rates, as suction nozzles that do not have such comb strips, with respect to the formation of such comb strips quite further improvements are possible.
- the present invention seeks to develop a low-cost comb strip for a suction nozzle, which is designed so that the comb strip not only fixes the sucked into the suction nozzle end of the thread, but also the detachment of the on the surface of the cheese accrued thread end supported by the surface of the cheese.
- the production and design of the comb strip according to the invention of a suction nozzle has the particular advantage that a comb strip with at least one structured surface in the region of the fold of the comb strip can be created in a simple and cost-effective manner, wherein the structured surface has a surface which facilitates the detachment of the thread end supported by the surface of the cheese. That is, the structured surface of the comb strip created in a photochemical etching process leads to a significantly improved end-of-line detachment, particularly in problematic yarns, which are often characterized by great hairiness.
- the comb strip has two structured surfaces, which are arranged spaced from each other so that between them a smooth Kämmancen Scheme is given.
- a smooth Kämmancen Scheme is given.
- Such a design ensures that the thread end is loaded during the thread take-up with a high probability by one of the structured surfaces and thereby released from the surface of the cheese.
- it is also ensured by the arranged between the structured surfaces smooth Kämm advisorn Scheme but that, if necessary, a predeterminable thread length can be deducted via the suction nozzle without it comes to threading in the area of the fold of the comb strip, as a sucked thread always has the desire to slip into the area of the suction nozzle center.
- the structured surfaces as set forth in claim 3, contour edges, which have undercuts.
- Such undercuts arranged in the region of the contour edges are very effective, in particular in the case of hairy yarns, since they easily detect, for example, protruding edge fibers and as a consequence of which the thread end, as intended, is lifted off the cheeses surface.
- the structured surfaces are arranged spaced above a row of teeth of the comb strip.
- the row of teeth has a plurality of large teeth for receiving a thread end and small teeth for fixing the thread end. That is, a small tooth is positioned between each of two large teeth.
- Fig. 1 is a side view schematically a job 2 of a cheese-producing textile machine, in the embodiment of a so-called cross-winding machine 1, shown.
- Such automatic packages 1 usually have a plurality of such, in series juxtaposed, identical jobs 2.
- spinning workpieces 3 produced on ring spinning machines are rewound on workstations 2 into large-volume cheeses 5.
- the cheeses 5 are after their completion by means of a (not shown) automatically operating service unit, preferably a cheese changer, handed over to a machine-length cheese package transport means 7 and transported to a machine end side Spulenverladestation or the like.
- such automatic packages 1 often have a logistics device in the form of a package and tube transport system 6, in which spin cops 3 or empty tubes circulate on transport plates 11. From this coil and sleeve transport system 6 are in the Fig. 1 only the Kopszu slaughterhouse 24, the reversibly driven storage section 25, one of the leading to the winding units 2 transverse transport sections 26 and the sleeve return path 27 shown.
- Each job 2 of the automatic winder 1 also has various other, known per se and therefore not explained in more detail facilities that are necessary for proper operation of the jobs 2.
- Each workstation 2 has, for example, a workstation computer 28, which is connected via a bus connection 29 to a central control unit 30 of the automatic cheese winder 1, and via a winding device 4, which has a coil frame 8 movably mounted about a pivot axis 12.
- Fig. 1 indicated is located during the winding operation in the coil frame 8 freely rotatably supported cross-wound bobbin 5 with its surface on a support and drive roller 9, which is acted upon for example by an electric motor 33.
- the electric motor 33 is connected via a control line 35 to the workstation computer 28.
- a Fadenchangier founded 10 is provided, which consists for example of a finger thread guide 13, which, acted upon by an electric motor drive 14, travels to the package 5 thread 16 running between the end faces of the cheese 5.
- the yarn guide drive 14 is connected via a control line 15 to the workstation computer 28 in operative connection.
- Such jobs 2 also have a thread connecting device 42, preferably a pneumatic splicing device, a gripper tube 43 for handling the lower thread and a suction nozzle 17, with a recorded after a Spulunterbrechung on the surface of the cheese 5 thread end and inserted into the thread connecting device 42 can.
- the suction nozzle 17 has, as for example with reference to FIG Fig. 2 it can be seen, in the region of its suction nozzle head 18, a suction opening 23, which is equipped with a comb strip 19 according to the invention.
- the comb strip 19 has, as well as from the Figure 3 clearly visible, over a row of teeth 22 with large 20 and small 21 teeth and in the region of their fold 31 on structured surfaces 32nd
- a smooth Kämmatn Scheme 34 is also provided.
- the comb strip 19 according to the invention is preferably made of a spring steel sheet having a thickness between 0.2 and 0.5 mm.
- photochemical etching has proved to be an advantageous production method for producing the comb strips according to the invention.
- short-wave radiation photochemical processes are triggered, which lead to a very precise material removal at the exposed areas of the thin spring steel, both structured surfaces and fine tooth geometries can be produced inexpensively.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
- Treatment Of Fiber Materials (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Description
Die Erfindung betrifft eine Kammleiste für eine Saugdüse einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine gemäß dem Oberbegriff des Anspruches 1.The invention relates to a comb strip for a suction nozzle of a workstation of a cheese-producing textile machine according to the preamble of
Im Zusammenhang mit dem Betrieb von Kreuzspulen herstellenden Textilmaschinen, insbesondere von Kreuzspulautomaten, ist es seit langem üblich, im Falle einer Spulunterbrechung, zum Beispiel bei einem Fadenbruch, bei einem kontrollierten Reinigerschnitt oder bei einem Vorlagespulenwechsel über einen Arbeitsstellenrechner eine arbeitsstelleneigene Fadenverbindungsautomatik zu aktivieren.In connection with the operation of cheese-producing textile machines, in particular automatic packages, it has long been common in the case of a winding interruption, for example, at a yarn break, in a controlled cleaner cut or at a supply bobbin change over a workstation computer to activate a working-own threading automatic.
Das heißt, der Arbeitsstellenrechner sorgt dafür, dass, wie beispielsweise in der
Die Saugdüse versucht dabei, mit ihrer Ansaugöffnung das Fadenende des Oberfadens pneumatisch von der Oberfläche der als Kreuzspule ausgebildeten Auflaufspule aufzunehmen.
Nach dem Erfassen des Oberfadenendes schwenkt die Saugdüse in ihre Ausgangslage, in der die Ansaugöffnung der Saugdüse unterhalb einer Fadenspleißvorrichtung positioniert ist, zurück.
Der sich zwischen der Kreuzspule und der Saugdüse erstreckende Fadenstrang wird dabei in einen oberhalb der Fadenverbindungsvorrichtung angeordneten elektronischen Fadenreiniger, eine im Bereich der Fadenverbindungsvorrichtung positionierte Fadenklemmeinrichtung sowie, durch entsprechende Leitkonturen von Fadenleitblechen und Fadenleitbügeln geführt, in die Schere einer unterhalb der Spleißvorrichtung befindlichen Fadenschneideinrichtung eingezogen.That is, the workstation computer ensures that, as in the
The suction nozzle tries to take with its suction the yarn end of the upper thread pneumatically from the surface of the package designed as a cross-wound bobbin.
After detecting the upper thread end, the suction nozzle pivots back to its original position, in which the suction opening of the suction nozzle is positioned below a yarn splicing device.
The yarn strand extending between the cross-wound bobbin and the suction nozzle is guided into an electronic thread cleaner arranged above the yarn joining device, a yarn clamping device positioned in the region of the yarn joining device and, guided by corresponding guide contours of yarn guide plates and yarn guide bars, into the scissors a thread cutting device located below the splicing device retracted.
Nahezu gleichzeitig mit der Saugdüse schwenkt ein in einer unteren Ausgangslage positioniertes Greiferrohr in eine obere Arbeitsstellung und bringt dabei einen bis dahin beispielsweise in einem Fadenspanner gehaltenen, von der Vorlagespule abgezogenen Unterfaden mit.
Beim Einschwenken des Greiferrohres in seine obere Arbeitsstellung gleitet der Unterfaden, der ebenfalls an entsprechenden Fadenleitkonturen geführt ist, in eine zugehörige, geöffnete Fadenklemmeinrichtung sowie in eine ebenfalls geöffnete Fadenschneideinrichtung.
Unter- und Oberfaden werden anschließend auf die richtige Länge abgeschnitten, in so genannten Halte- und Auflöseröhrchen vorbereitet und in der Fadenspleißeinrichtung miteinander verbunden. Das bedeutet, an den Arbeitsstellen eines Kreuzspulautomaten werden, um, zum Beispiel nach einem Fadenbruch, den Betrieb automatisch fortführen zu können, stets sowohl ein von der Kreuzspule zurückgeholter Oberfaden als auch ein von der Vorlagespule kommender Unterfaden benötigt.Almost at the same time as the suction nozzle, a gripper tube positioned in a lower starting position pivots into an upper working position, bringing with it a lower thread that has been held until then, for example in a thread tensioner, drawn from the supply spool.
When swinging the gripper tube in its upper working position of the lower thread, which is also performed on corresponding Fadenleitkonturen slides in an associated, open thread clamping device and in an also open thread cutting device.
The lower and upper threads are then cut to the correct length, prepared in so-called holding and Auflöseröhrchen and connected together in the Fadensleißeinrichtung. This means that at the workstations of a cheese winder, in order, for example, to be able to continue the operation automatically after a yarn breakage, both an upper thread taken back from the cheese and a bobbin thread coming from the supply bobbin are always required.
Die vorbeschriebenen Fadenverbindungseinrichtungen sowie die zugehörigen Saugdüsen und Greiferrohre haben sich im Prinzip in der Praxis bewährt und sind in der Textilindustrie seit langer Zeit in großer Stückzahl im Einsatz.The above-described thread connecting devices and the associated suction nozzles and gripper tubes have proven in principle in practice and have been used in the textile industry for a long time in large quantities in use.
Bei den bekannten Saugdüsen treten allerdings gelegentlich Schwierigkeiten bei der Aufnahme eines auf die Oberfläche der Kreuzspule aufgelaufenen Fadenendes auf.
Derartige Schwierigkeiten ergeben sich insbesondere dann, wenn das auf die Kreuzspule aufgelaufene Fadenende relativ stark eingewalkt ist, und/oder wenn ein etwas schwieriges, zum Beispiel besonders haariges Garn vorliegt.In the known suction nozzles, however, occasionally encounter difficulties in receiving a accumulated on the surface of the cheese spool end.
Such difficulties arise in particular when the accumulated on the cross-wound yarn end relatively strongly infiltrated is, and / or if a somewhat difficult, for example, particularly hairy yarn is present.
Um die Saugdüsen bei der Aufnahme solcher etwas schwierig zu handhabender Fadenenden zu unterstützen, ist in der Vergangenheit bereits vorgeschlagen worden, im Bereich der Ansaugöffnungen der Saugdüsen Kammleisten anzuordnen, an denen sich das angesaugte Fadenende verfangen soll.In order to support the suction nozzles in the reception of such somewhat difficult to handle thread ends, has already been proposed in the past to arrange comb strips in the suction openings of the suction nozzles, at which the sucked yarn end to catch.
Solche im Bereich der Ansaugöffnung einer Saugdüse angeordneten Kammleisten sind bekannt und beispielsweise in der
In der
Durch die
Durch die
Des Weiteren ist beispielsweise in der
Die Fadenabhebeeinrichtung verfügt dabei über eine mit der Kreuzspule umlaufende Walze sowie über eine als mehrgängige Schnecke ausgebildete Kontaktwalze.
Die durch die
The Fadenabhebeeinrichtung has in this case a circulating with the cross-wound roller and a trained as a multi-screw worm contact roller.
The by the
Wenngleich Saugdüsen, die, wie vorstehend beschrieben, mit Kammleisten ausgestattet sind, bei der pneumatischen Fadenend-Aufnahme bereits deutlich höhere Erfolgsquoten aufweisen, als Saugdüsen, die nicht über solche Kammleisten verfügen, sind bezüglich der Ausbildung derartiger Kammleisten durchaus weitere Verbesserungen möglich.Although suction nozzles, which, as described above, are equipped with comb strips, in the pneumatic yarn end recording already have significantly higher success rates, as suction nozzles that do not have such comb strips, with respect to the formation of such comb strips quite further improvements are possible.
Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine kostengünstige Kammleiste für eine Saugdüse zu entwickeln, die so ausgebildet ist, dass die Kammleiste nicht nur das in die Saugdüse eingesaugte Fadenende fixiert, sondern auch das Ablösen des auf die Oberfläche der Kreuzspule aufgelaufenen Fadenendes von der Oberfläche der Kreuzspule unterstützt.Based on the aforementioned prior art, the present invention seeks to develop a low-cost comb strip for a suction nozzle, which is designed so that the comb strip not only fixes the sucked into the suction nozzle end of the thread, but also the detachment of the on the surface of the cheese accrued thread end supported by the surface of the cheese.
Diese Aufgabe wird erfindungsgemäß durch eine Kammleiste gelöst, wie sie im Anspruch 1 beschrieben ist.This object is achieved by a comb strip, as described in
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Die erfindungsgemäße Herstellung und Ausbildung der Kammleiste einer Saugdüse hat insbesondere den Vorteil, dass auf einfache und kostengünstige Weise eine Kammleiste mit wenigstens einer strukturierten Fläche im Bereich der Abkantung der Kammleiste geschaffen werden kann, wobei die strukturierte Fläche eine Oberfläche aufweist, die das Ablösen des Fadenendes von der Oberfläche der Kreuzspule unterstützt.
Das heißt, die in einem photochemischen Ätzverfahren erstellte strukturierte Fläche der Kammleiste führt insbesondere bei problematischen Garnen, die sich oft durch eine große Haarigkeit auszeichnen, zu einer deutlich verbesserten Fadenend-Ablösung.The production and design of the comb strip according to the invention of a suction nozzle has the particular advantage that a comb strip with at least one structured surface in the region of the fold of the comb strip can be created in a simple and cost-effective manner, wherein the structured surface has a surface which facilitates the detachment of the thread end supported by the surface of the cheese.
That is, the structured surface of the comb strip created in a photochemical etching process leads to a significantly improved end-of-line detachment, particularly in problematic yarns, which are often characterized by great hairiness.
Wie im Anspruch 2 beschrieben, ist in vorteilhafter Ausführungsform vorgesehen, dass die Kammleiste zwei strukturierte Flächen aufweist, die so zueinander beabstandet angeordnet sind, dass zwischen ihnen ein glatter Kammleistenbereich gegeben ist. Durch eine solche Ausbildung wird einerseits erreicht, dass das Fadenende bei der Fadenaufnahme mit einer hohen Wahrscheinlichkeit durch eine der strukturierten Flächen beaufschlagt und dabei von der Oberfläche der Kreuzspule gelöst wird.
Anderseits ist durch den zwischen den strukturierten Flächen angeordneten glatten Kammleistenbereich aber auch sichergestellt, dass im Bedarfsfall über die Saugdüse problemlos eine vorbestimmbare Fadenlänge abgezogen werden kann, ohne dass es im Bereich der Abkantung der Kammleiste zu Fadenauflösungen kommt, da ein angesaugter Faden stets das Bestreben hat, in den Bereich der Saugdüsenmitte zu gleiten.As described in claim 2, it is provided in an advantageous embodiment that the comb strip has two structured surfaces, which are arranged spaced from each other so that between them a smooth Kämmleistenbereich is given. Such a design on the one hand ensures that the thread end is loaded during the thread take-up with a high probability by one of the structured surfaces and thereby released from the surface of the cheese.
On the other hand, it is also ensured by the arranged between the structured surfaces smooth Kämmleistenbereich but that, if necessary, a predeterminable thread length can be deducted via the suction nozzle without it comes to threading in the area of the fold of the comb strip, as a sucked thread always has the desire to slip into the area of the suction nozzle center.
In bevorzugter Ausführungsform weisen die strukturierten Flächen, wie im Anspruch 3 dargelegt, Konturkanten auf, die über Hinterschnitte verfügen.
Solche im Bereich der Konturkanten angeordneten Hinterschnitte sind insbesondere bei haarigen Garnen sehr wirkungsvoll, da sie zum Beispiel abstehende Randfasern leicht erfassen und als Folge davon das Fadenende, wie beabsichtigt, von der Oberfläche der Kreuzspule abgehoben wird.In a preferred embodiment, the structured surfaces, as set forth in
Such undercuts arranged in the region of the contour edges are very effective, in particular in the case of hairy yarns, since they easily detect, for example, protruding edge fibers and as a consequence of which the thread end, as intended, is lifted off the cheeses surface.
Gemäß Anspruch 4 sind die strukturierten Flächen beabstandet oberhalb einer Zahnreihe der Kammleiste angeordnet.
Die Zahnreihe weist dabei eine Vielzahl von großen Zähnen zum Aufnehmen eines Fadenendes sowie kleinen Zähnen zum Fixieren des Fadenendes auf.
Das heißt, zwischen zwei großen Zähnen ist jeweils ein kleiner Zahn positioniert.
Im Herstellungsverfahren " photochemisches Ätzen" lassen sich sowohl strukturierte Flächen, als auch feingliedrige Zahnreihen in einem Arbeitsgang exakt und kostengünstig fertigen.According to
The row of teeth has a plurality of large teeth for receiving a thread end and small teeth for fixing the thread end.
That is, a small tooth is positioned between each of two large teeth.
In the "photochemical etching" production process, both structured surfaces and delicate rows of teeth can be produced precisely and inexpensively in a single operation.
Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.The invention will be explained in more detail with reference to an embodiment shown in the drawings.
Es zeigt:
- Fig. 1
- schematisch eine Spulstelle einer Kreuzspulen herstellenden Textilmaschine, im Ausführungsbeispiel eines Kreuzspulautomaten, mit einer Saugdüse, die eine erfindungsgemäße Kammleiste aufweist,
- Fig. 2
- eine perspektivische Ansicht des Saugdüsenkopfes einer Saugdüse, die mit einer erfindungsgemäßen Kammleiste ausgestattet ist,
- Fig. 3
- eine erfindungsgemäße Kammleiste in Vorderansicht.
- Fig. 1
- schematically a winding unit of a cross-wound producing textile machine, in the embodiment of a cheese, with a suction nozzle having a comb strip according to the invention,
- Fig. 2
- a perspective view of the Saugdüsenkopfes a suction nozzle, which is equipped with a comb strip according to the invention,
- Fig. 3
- a comb strip according to the invention in front view.
In
Solche Kreuzspulautomaten 1 weisen in der Regel eine Vielzahl derartiger, in Reihe nebeneinander angeordneter, identischer Arbeitsstellen 2 auf.
Auf den Arbeitsstellen 2 werden, wie bekannt und daher nicht näher erläutert, auf Ringspinnmaschinen produzierte Spinnkopse 3 zu großvolumigen Kreuzspulen 5 umgespult.
Die Kreuzspulen 5 werden nach ihrer Fertigstellung mittels eines (nicht dargestellten) selbsttätig arbeitenden Serviceaggregates, vorzugsweise eines Kreuzspulenwechslers, auf eine maschinenlange Kreuzspulentransporteinrichtung 7 übergeben und zu einer maschinenendseitig angeordneten Spulenverladestation oder dergleichen transportiert.Such
As is known and therefore not explained in detail, spinning
The
Wie im Ausführungsbeispiel dargestellt, weisen solche Kreuzspulautomaten 1 oft eine Logistikeinrichtung in Form eines Spulen- und Hülsentransportsystems 6 auf, in dem Spinnkopse 3 beziehungsweise Leerhülsen auf Transporttellern 11 umlaufen.
Von diesem Spulen- und Hülsentransportsystem 6 sind in der
Jede Arbeitsstelle 2 des Kreuzspulautomaten 1 weist außerdem verschiedene weitere, an sich bekannte und daher nicht näher erläuterte Einrichtungen auf, die für einen ordnungsgemäßen Betrieb der Arbeitsstellen 2 notwendig sind.
Jede Arbeitsstelle 2 verfügt beispielsweise über einen Arbeitsstellenrechner 28, der über eine Busverbindung 29 an eine zentrale Steuereinheit 30 des Kreuzspulautomaten 1 angeschlossen ist, sowie über eine Spulvorrichtung 4, die einen um eine Schwenkachse 12 beweglich gelagerten Spulenrahmen 8 aufweist.As shown in the exemplary embodiment, such
From this coil and
Each job 2 of the
Each workstation 2 has, for example, a
Wie in
Zur Changierung des Fadens 16 während des Spulprozesses ist eine Fadenchangiereinrichtung 10 vorgesehen, die beispielsweise aus einem Fingerfadenführer 13 besteht, der, durch einen elektromotorischen Antrieb 14 beaufschlagt, den auf die Kreuzspule 5 auflaufenden Faden 16 zwischen den Stirnseiten der Kreuzspule 5 traversiert. Der Fadenführerantrieb 14 steht dabei über eine Steuerleitung 15 mit dem Arbeitsstellenrechner 28 in Wirkverbindung.As in
For traversing the
Solche Arbeitsstellen 2 verfügen außerdem über eine Fadenverbindungseinrichtung 42, vorzugsweise eine pneumatische Spleißeinrichtung, ein Greiferrohr 43 zum Handhaben des Unterfadens sowie über eine Saugdüse 17, mit der ein nach einer Spulunterbrechung auf die Oberfläche der Kreuzspule 5 aufgelaufenes Fadenende aufgenommen und in die Fadenverbindungseinrichtung 42 eingelegt werden kann.
Die Saugdüse 17 weist, wie beispielsweise anhand der
The
Die Kammleiste 19 verfügt dabei, wie auch aus der
Zwischen den beiden strukturieren Flächen 32, die beabstandet, beispielsweise in einem Abstand a, oberhalb der Zahnreihe 22 angeordnet sind, ist außerdem ein glatter Kammleistenbereich 34 vorgesehen.Between the two structured surfaces 32, which are spaced apart, for example, at a distance a, are arranged above the row of
Durch diesen glatten Kammleistenbereich 34 wird sichergestellt, dass im Bedarfsfall ein angesaugter Faden, der das Bestreben hat, in die Saugdüsenmitte zu laufen, auch relativ ungestört in die Saugdüse 17 einlaufen kann.By this
Die erfindungsgemäße Kammleiste 19 ist vorzugsweise aus einem Federstahlblech hergestellt, das eine Dicke zwischen 0,2 und 0,5 mm aufweist.The
Wie vorstehend bereits erläutert, hat sich als vorteilhaftes Fertigungsverfahren zur Herstellung der erfindungsgemäßen Kammleisten das photochemische Ätzen erwiesen.
Mit einem solchen Fertigungsverfahren, bei dem mit kurzwelliger Strahlung photochemische Prozesse ausgelöst werden, die zu einem sehr exakten Materialabtrag an den belichteten Stellen des dünnen Federstahls führen, lassen sich sowohl strukturierte Flächen als auch feine Zahngeometrien kostengünstig herstellen.As already explained above, photochemical etching has proved to be an advantageous production method for producing the comb strips according to the invention.
With such a manufacturing method, in which short-wave radiation photochemical processes are triggered, which lead to a very precise material removal at the exposed areas of the thin spring steel, both structured surfaces and fine tooth geometries can be produced inexpensively.
Claims (4)
- Comb bar for a suction nozzle of a workstation of a textile machine producing cross-wound bobbins, wherein the suction nozzle has a suction opening for pneumatically picking up a thread end, which has run onto the surface of a cross-wound bobbin after a thread break or a controlled thread cut and the comb bar to be arranged in the region of the suction opening is equipped with a fold and with a row of teeth for fixing the sucked up thread end, characterised in that the comb bar (19), in the region of its fold (31), has a least one structured face (32), which is produced by a photochemical etching method.
- Comb bar according to claim 1, characterised in that two structured faces (32A, 32B) are present in the region of the fold (31) and are arranged spaced apart from one another in such a way that a smooth comb bar region (34) is provided between them.
- Comb bar according to claim 1 or 2, characterised in that contour edges, which have undercuts, are present in the region of the structured faces (32; 32A, 32B).
- Comb bar according to claim 1, characterised in that the structured faces (32; 32A, 32B) are arranged spaced apart above the row (22) of teeth of the comb bar (19), the row (22) of teeth having a large number of large (20) and small (21) teeth and a small tooth (21) being arranged in each case between two large teeth (20).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011114765A DE102011114765A1 (en) | 2011-10-01 | 2011-10-01 | Comb strip for a suction nozzle of a workstation of a cheese-producing textile machine |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011114765 Previously-Filed-Application | 2011-10-01 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2574580A2 EP2574580A2 (en) | 2013-04-03 |
EP2574580A3 EP2574580A3 (en) | 2014-03-05 |
EP2574580B1 true EP2574580B1 (en) | 2015-07-08 |
Family
ID=46924204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12006278.1A Not-in-force EP2574580B1 (en) | 2011-10-01 | 2012-09-06 | Comb bar for a suction nozzle for a workstation of a textile machine for creating cross-wound spools |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2574580B1 (en) |
JP (1) | JP6012374B2 (en) |
CN (1) | CN103030031B (en) |
DE (1) | DE102011114765A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015157669A (en) * | 2014-02-24 | 2015-09-03 | 村田機械株式会社 | Yarn end capture device and yarn winder |
DE102015005393A1 (en) * | 2015-04-28 | 2016-11-03 | Saurer Germany Gmbh & Co. Kg | Workplace of a package winding textile machine |
IT202100016862A1 (en) * | 2021-06-28 | 2022-12-28 | Savio Macch Tessili Spa | WIRE SUCTION NOZZLE ON THE PACKAGE SIDE AND RELATIVE WINDER EQUIPPED WITH THE SAID WIRE SUCTION NOZZLE ON THE PACKAGE SIDE |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2857113A (en) | 1953-11-03 | 1958-10-21 | Reiners Walter Dr Ing | Suction nozzle for catching thread ends |
JPS4844125Y1 (en) * | 1970-07-28 | 1973-12-19 | ||
CH623546A5 (en) * | 1977-11-09 | 1981-06-15 | Schweiter Ag Maschf | |
DE3620702A1 (en) * | 1986-06-20 | 1987-12-23 | Staedtler & Uhl | GARNITURE FOR TEXTILE PREPARATION MACHINES, ESPECIALLY KAEMM MACHINES, CARDS OR THE LIKE. |
US5249752A (en) * | 1989-05-16 | 1993-10-05 | Savio S.P.A. | Combs for application to suction nozzles for seizing the end of yarns wound in packages |
IT1229739B (en) | 1989-05-16 | 1991-09-07 | Savio Spa | PROCEDURE FOR THE REALIZATION OF COMBS TO BE APPLIED TO SUCTION VENTS FOR THE COLLECTION OF THE BAND OF YARNS WRAPPED IN PACKAGING AND PERFECTED COMBS SO OBTAINED. |
DE4005752C2 (en) | 1990-02-23 | 1998-10-08 | Schlafhorst & Co W | Method and device for preparing thread ends to be spliced |
JPH0469479U (en) * | 1990-10-26 | 1992-06-19 | ||
JPH0496469U (en) * | 1991-01-29 | 1992-08-20 | ||
JPH0781849A (en) * | 1993-09-13 | 1995-03-28 | Murata Mach Ltd | Auxiliary yarn joiner |
JP2002080170A (en) * | 2000-09-06 | 2002-03-19 | Murata Mach Ltd | Device for pulling yarn end out of package |
JP2005005679A (en) * | 2003-04-15 | 2005-01-06 | Matsushita Electric Ind Co Ltd | Semiconductor light emitting device and its manufacturing method |
MXPA06000587A (en) * | 2003-07-17 | 2006-07-10 | Ellison Educational Equip Inc | Thin die to be used in a press. |
US7618514B2 (en) * | 2006-02-03 | 2009-11-17 | United Technologies Corporation | Photo-etched EDM electrode |
JP4147432B2 (en) * | 2006-07-28 | 2008-09-10 | 村田機械株式会社 | Thread end drawing device |
DE102006039735A1 (en) | 2006-08-24 | 2008-02-28 | Oerlikon Textile Gmbh & Co. Kg | Suction nozzle for a job of a cheese-producing textile machine |
-
2011
- 2011-10-01 DE DE102011114765A patent/DE102011114765A1/en not_active Withdrawn
-
2012
- 2012-09-06 EP EP12006278.1A patent/EP2574580B1/en not_active Not-in-force
- 2012-09-27 CN CN201210433744.3A patent/CN103030031B/en not_active Expired - Fee Related
- 2012-09-28 JP JP2012216594A patent/JP6012374B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2574580A2 (en) | 2013-04-03 |
CN103030031B (en) | 2016-07-06 |
JP2013079150A (en) | 2013-05-02 |
CN103030031A (en) | 2013-04-10 |
DE102011114765A1 (en) | 2013-04-04 |
JP6012374B2 (en) | 2016-10-25 |
EP2574580A3 (en) | 2014-03-05 |
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