EP0208084B1 - Open-end spinning device - Google Patents

Open-end spinning device Download PDF

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Publication number
EP0208084B1
EP0208084B1 EP86106319A EP86106319A EP0208084B1 EP 0208084 B1 EP0208084 B1 EP 0208084B1 EP 86106319 A EP86106319 A EP 86106319A EP 86106319 A EP86106319 A EP 86106319A EP 0208084 B1 EP0208084 B1 EP 0208084B1
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EP
European Patent Office
Prior art keywords
open
spinning device
suction
shaft
bearing
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
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EP86106319A
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German (de)
French (fr)
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EP0208084A2 (en
EP0208084A3 (en
Inventor
Karl Handschuch
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Rieter Ingolstadt Spinnereimaschinenbau AG
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Schubert und Salzer Maschinenfabrik AG
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Publication of EP0208084A3 publication Critical patent/EP0208084A3/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/16—Friction spinning, i.e. the running surface being provided by a pair of closely spaced friction drums, e.g. at least one suction drum
    • D01H4/20—Drum bearings; Arrangements for driving or stopping

Definitions

  • the invention relates to an open-end spinning device with two friction rollers arranged next to one another, forming a spinning gusset and driven in the same direction, at least one of which has a perforated jacket which is overhung in the region of one end and in the interior of which a suction slot connected to a vacuum source Suction insert is arranged.
  • the object of the present invention is to avoid these disadvantages in an open-end spinning device of the type mentioned at the outset.
  • the object is achieved in that the jacket is mounted on an axis, one end of which is inserted in the suction insert, and in that the suction insert is arranged directly behind the jacket and has a constant cross section until it is connected to the suction line.
  • the other end of the axis is overhung in a fixed holder.
  • the suction insert is overhung in a stationary holder and the axis is inserted into the free end of the suction insert that is removed from the holder.
  • a roller bearing is preferably used for mounting the casing, wherein the axis can be the inner ring of the roller bearing, which consists of at least two races arranged at an axial distance from one another.
  • a prefabricated and easy-to-assemble bearing is obtained in that the axle with the races is inserted into a bearing sleeve.
  • the second race of the rolling bearing is expediently arranged in the bearing sleeve at such a distance from the first race that it lies outside the casing.
  • the friction roller can be displaced against the drive belt in adaptation to a changed drive diameter of the roller bearing.
  • the suction insert is supported in the region of its end facing away from the axis.
  • a piecing aid which enables a piecing thread to be sucked in and stored, is created in that the axis is arranged on the side opposite to the thread withdrawal direction and is designed as a hollow axis into which a suction tube bent into the U-shape for the gusset is inserted.
  • the end of the overhung suction insert facing away from the axis can be closed by a closure member designed as a rotary slide and extending into the vicinity of the axis.
  • 1 denotes a cylindrical suction insert, which is connected by means of a suction line 11 to a vacuum source, not shown.
  • the suction insert 1 is arranged in the jacket 2 of a friction roller provided with perforations 20 and has a suction slot 12 which extends in a known manner along a spinning gusset.
  • the diameter of the suction insert 1 is only so much smaller than that of the casing 2 that the suction insert 1 is located directly behind the casing 2 and is separated from it only by a narrow gap.
  • the suction insert 1 has a constant cross section over its entire length, which is preferably also in the suction line 11 continues to the vacuum source.
  • the spinning gusset is formed by the jacket 2 and a second friction roller 3 arranged parallel and closely next to it, the latter also being designed as a suction roller or, according to the exemplary embodiment, can have a closed jacket (FIG. 4).
  • the two friction rollers are driven in the same direction, for example by a tangential belt 4.
  • the casing 2, with its non-perforated part projecting beyond the suction insert 1, is suspended on an axis 5, one end of which is clamped in a stationary holder 51.
  • the other end of the axis 5 is inserted with a precise fit in a bore which is provided in a bottom 13 of the suction insert 1 at the end facing away from the suction line 11.
  • the bottom 13 can be an integral part of the suction insert 1 or pressed into it.
  • the casing 2 is preferably mounted on the axis 5 by means of a roller bearing, but a sliding bearing is also possible if necessary.
  • the rolling bearing 6 used for the storage consists of at least two races 61 and 62, which are arranged at a distance from one another on the axis 5 serving as the inner ring and are inserted with this in a bearing sleeve 63. This results in a compact and easy-to-use prefabricated bearing unit, on the bearing sleeve 63 of which the casing 2 can be quickly and easily pressed in a rotationally fixed manner.
  • the second race 62 of the rolling bearing 6 at such a distance from the first race 61 that it lies outside the shell 2, the bearing sleeve 63 protrudes accordingly from the jacket 2.
  • the concentricity of the casing 2 is further improved by the increased bearing distance, and on the other hand the possibility is created of driving the casing 2 by means of a belt, expediently a tangential belt 4, via the part of the bearing sleeve 63 protruding from the casing 2.
  • the belt's contact pressure is transferred directly to the bearing without any tipping moment.
  • the circumferential speed of the casing 2 can be varied as required by appropriate dimensioning of the roller bearing 6 or by a bush 40 pressed onto the bearing sleeve 63 in the drive area.
  • the friction roller is displaceably mounted against the tangential belt 4. This is indicated in Figure 4 by different axis planes of the two friction rollers.
  • the displacement "a” is possible, for example, in that the axis 5 is detachably fastened in an elongated hole in the holder 51 or is pivotably mounted about a pivot point.
  • the embodiment according to FIG. 2 differs from that shown in FIG. 1 in that the suction insert 1 also has a support 52 in the area between the free end of the overhung casing 2 and the connection end of the suction line 11.
  • the cylindrical suction insert 1 is overhung in a stationary holder 7.
  • the holder 7 contains a suction air duct 71, via which the suction line 11 is used to connect to a suction air source.
  • An air passage opening 14 in the suction insert 1 establishes the connection of the suction air duct 71 with the interior of the suction insert 1, which is arranged directly behind the casing 2 and has a constant cross section over its entire length.
  • the suction air duct 71 and preferably also the suction line 11 have a cross section of the same size as the suction insert 1.
  • the bearing 15 supporting the roller bearing and serving as its inner ring is pressed into the hole in the bottom 13 of the suction insert 1 on the end of the suction insert 1 facing away from the holder 7.
  • the jacket 2 is also simply pressed onto the bearing sleeve 63 of the prefabricated bearing and driven via the part of the bearing sleeve 63 not covered by the jacket 2 by means of the tangential belt 4.
  • the open end of the suction insert 1 facing away from the axis 5 is closed by a closure member 8.
  • the closure member 8 is designed as a rotary slide which extends in the vicinity of the axis 5. The type of storage makes it possible to operate this closure member 8 unhindered by components on the end face, and thereby to close or open the suction slot 12 and / or the air passage opening 14 as required.
  • the axis 5 is arranged on the side of the friction roller opposite to the thread take-off direction, it is also possible to design the axis 5 as a hollow axis and to use a suction tube 9 bent into it in a U-shape towards the spinning gusset, through which outside air is sucked in.
  • This design makes it possible to draw in a piecing thread brought into the region of the spinning gusset in the direction opposite to the thread take-off direction and to save it until the spinning process starts.
  • the piecing thread is expediently drawn in a position of the closure member 8 in which the suction slot 12 is closed, but the air passage opening 14 remains open.
  • a roller having a closed jacket can also be stored in the manner according to the invention in order to create the same storage conditions.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Rolling Contact Bearings (AREA)
  • Joints Allowing Movement (AREA)

Description

Die Erfindung betrifft eine Offenend-Spinnvorrichtung mit zwei nebeneinander angeordneten, einen Spinnzwickel bildenden und gleichsinnig angetriebenen Friktionswalzen, von denen wenigstens eine einen perforierten Mantel besitzt, der im Bereich eines Endes fliegend gelagert ist und in dessen Innenraum ein an eine Unterdruckquelle angeschlossener, einen Saugschlitz aufweisender Saugeinsatz angeordnet ist.The invention relates to an open-end spinning device with two friction rollers arranged next to one another, forming a spinning gusset and driven in the same direction, at least one of which has a perforated jacket which is overhung in the region of one end and in the interior of which a suction slot connected to a vacuum source Suction insert is arranged.

Es ist bekannt, als Saugwalzen ausgebildete Friktionswalzen mit Antriebsschäften zu versehen und diese mit Wälzlagern fliegend zu lagern (DE-OS 2.810.184). Dabei befindet sich der Anschlußstutzen des in den Mantel der Friktionswalzen eingesetzten Saugeinsatzes auf der den Antriebsschäften abgewandten Stirnseite des Mantels, so daß die Zuspeiserichtung des Faserspeisekanals und die Absaugrichtung des Saugeinsatzes die gleiche Richtungstendenz aufweisen. Diese Lagerung ist umständlich und nicht so stabil, daß der für das Spinnen erforderliche gleichmäßig enge Abstand der Friktionswalzen voneinander sichergestellt ist.It is known to provide friction rollers designed as suction rollers with drive shafts and to mount them on the fly with roller bearings (DE-OS 2,810,184). The connecting piece of the suction insert inserted into the jacket of the friction rollers is located on the end of the jacket facing away from the drive shafts, so that the direction of feed of the fiber feed channel and the suction direction of the suction insert have the same directional tendency. This storage is cumbersome and not so stable that the uniformly close spacing of the friction rollers required for spinning is ensured.

Um diese Nachteile zu beseitigen, wurde vorgeschlagen, den Saugeinsatz als Achse auszubilden, auf welcher die Wälzlager für den über den Bereich des Saugschlitzes hinaus verlängerten Mantel angeordnet sind (DE-OS 3.316.658). Dadurch vergrößert sich jedoch der Abstand des perforierten Mantels vom Saugeinsatz um die Bauhöhe des Lagers, der wiederum durch ein entsprechendes rohrförmiges Zwischenstück überbrückt werden muß. Dies erfordert einen nicht unbeachtlichen baulichen Aufwand und eine im Durchmesser vergrößerte Friktionswalze, die Mehrkosten verursachen. Außerdem werden die Luftströmungsverhältnisse ungünstig beeinflußt, was sich nachteilig auf die Spinnbedinungen auswirkt.In order to eliminate these disadvantages, it was proposed to design the suction insert as an axis on which the roller bearings for the jacket extended beyond the area of the suction slot are arranged (DE-OS 3,316,658). However, this increases the distance of the perforated jacket from the suction insert by the height of the bearing, which in turn has to be bridged by a corresponding tubular intermediate piece. This requires a not inconsiderable construction effort and an enlarged friction roller, which cause additional costs. In addition, the air flow conditions are adversely affected, which has an adverse effect on the spinning conditions.

Aufgabe der vorliegenden Erfindung ist es, bei einer Offenend-Spinnvorrichtung der eingangs genannten Art diese Nachteile zu vermeiden.The object of the present invention is to avoid these disadvantages in an open-end spinning device of the type mentioned at the outset.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Mantel auf einer Achse gelagert ist, deren eines Ende in den Saugeinsatz eingesetzt ist, und daß der Saugeinsatz innerhalb des Mantels unmittelbar hinter diesem angeordnet ist und bis zum Anschluß an die Saugleitung einen gleichbleibenden Querschnitt hat.The object is achieved in that the jacket is mounted on an axis, one end of which is inserted in the suction insert, and in that the suction insert is arranged directly behind the jacket and has a constant cross section until it is connected to the suction line.

Dadurch steht bei einfacher Lagerung ein maximaler Ansaugquerschnitt zur Verfügung. Der Durchmesser der Friktionswalze, für den alleiniges Kriterium ist, daß genügend Luft durch den perforierten Mantel gesaugt wird, kann daher so klein wie möglich gehalten werden. Die Kosten für die Herstellung der Walze und der Luftbedarf bleiben somit gering.This means that a maximum intake cross-section is available with simple storage. The diameter of the friction roller, for which the only criterion is that sufficient air is drawn through the perforated jacket, can therefore be kept as small as possible. The costs for the production of the roller and the air requirement thus remain low.

In Weiterbildung der Erfindung wird vorgesehen, daß das andere Ende der Achse in einer ortsfesten Halterung fliegend gelagert ist. In einer anderen Ausbildung ist der Saugeinsatz in einer ortsfesten Halterung fliegend gelagert und die Achse ist in das von der Halterung entfernte freie Ende des Saugeinsatzes eingesetzt. Vorzugsweise wird zur Lagerung des Mantels ein Wälzlager verwendet, wobei die Achse Innenring des Wälzlagers sein kann, das aus mindestens zwei in einem axialen Abstand voneinander angeordneten Laufringen besteht. Ein vorgefertigtes und montagegünstiges Lager wird dadurch erhalten, daß die Achse mit den Laufringen in eine Lagerhülse eingesetzt ist. Dabei ist zweckmäßig der zweite Laufring des Wälzlagers in einem solchen Abstand vom ersten Laufring in der Lagerhülse angeordnet, daß er außerhalb des Mantels liegt. Dadurch wird der Rundlauf des Mantels verbessert und der Antrieb des Mantels kann über den aus dem Mantel herausragenden Teil der Lagerhülse erfolgen. Das hat den Vorteil, daß die Umfangsgeschwindigkeit des Mantels durch entsprechende Bemessung des Lagers bzw. durch eine zusätzlich aufgepreßte Büchse im Antriebsbereich je nach Bedarf geändert werden kann.In a further development of the invention, it is provided that the other end of the axis is overhung in a fixed holder. In another embodiment, the suction insert is overhung in a stationary holder and the axis is inserted into the free end of the suction insert that is removed from the holder. A roller bearing is preferably used for mounting the casing, wherein the axis can be the inner ring of the roller bearing, which consists of at least two races arranged at an axial distance from one another. A prefabricated and easy-to-assemble bearing is obtained in that the axle with the races is inserted into a bearing sleeve. The second race of the rolling bearing is expediently arranged in the bearing sleeve at such a distance from the first race that it lies outside the casing. This improves the concentricity of the casing and the drive of the casing can take place via the part of the bearing sleeve which protrudes from the casing. This has the advantage that the peripheral speed of the jacket can be changed as required by appropriate dimensioning of the bearing or by an additionally pressed-on bush in the drive area.

Um bei einem Antrieb des Mantels mittels eines Tangentialriemens den geradlinigen Lauf des Riemens sicherzustellen, ist die Friktionswalze in Anpassung an einen veränderten Antriebsdurchmesser des Wälzlagers gegen den Antriebsriemen verschiebbar. In einer weiteren Ausbildung der Vorrichtung ist vorgesehen, daß der Saugeinsatz im Bereich seines der Achse abgewandten Endes abgestützt ist. Eine Anspinnhilfe, die es ermöglicht, einen Anspinnfaden anzusaugen und zu speichern wird dadurch geschaffen, daß die Achse auf der der Fadenabzugsrichtung entgegensetzten Seite angeordnet und als Hohlachse ausgebildet ist, in die ein U-förmig zum Spinnzwickel hin gebogenes Saugrohr eingesetzt ist. Vorzugsweise ist das von der Achse abgewandte Ende des fliegend gelagerten Saugeinsatzes durch ein als Drehschieber ausgebildetes und sich bis in die Nähe der Achse erstreckendes Verschlußglied verschließbar.In order to ensure that the belt runs in a straight line when the casing is driven by means of a tangential belt, the friction roller can be displaced against the drive belt in adaptation to a changed drive diameter of the roller bearing. In a further embodiment of the device it is provided that the suction insert is supported in the region of its end facing away from the axis. A piecing aid, which enables a piecing thread to be sucked in and stored, is created in that the axis is arranged on the side opposite to the thread withdrawal direction and is designed as a hollow axis into which a suction tube bent into the U-shape for the gusset is inserted. Preferably, the end of the overhung suction insert facing away from the axis can be closed by a closure member designed as a rotary slide and extending into the vicinity of the axis.

Ausführungsbeispiele der Erfindung werden nachstehend anhand der Zeichnungen näher beschrieben. Es zeigt

  • Fig. 1 einen Längsschnitt durch eine Friktionswalze mit der erfindungsmäßigen Lagerung;
  • Fig. 2 die Friktionswalze nach Fig. 1 mit einer zusätzlichen Abstützung des Saugeinsatzes;
  • Fig. 3 einen Längsschnitt durch eine Friktionswalze mit einer weiteren Ausführungsform der Lagerung;
  • Fig. 4 zwei von einem Tangentialriemen angetriebene Friktionswalzen mit um "a" versetzten Mitten, im Querschnitt.
Embodiments of the invention are described below with reference to the drawings. It shows
  • 1 shows a longitudinal section through a friction roller with the inventive storage.
  • FIG. 2 shows the friction roller according to FIG. 1 with an additional support for the suction insert;
  • 3 shows a longitudinal section through a friction roller with a further embodiment of the storage;
  • Fig. 4 two friction rollers driven by a tangential belt with centers offset by "a", in cross section.

In Figur 1 ist mit 1 ein zylindrischer Saugeinsatz bezeichnet, der mittels einer Saugleitung 11 mit einer nicht gezeigten Unterdruckquelle verbunden ist. Der Saugeinsatz 1 ist in dem mit Perforationen 20 versehenen Mantel 2 einer Friktionswalze angeordnet und besitzt einen Saugschlitz 12, der sich in bekannter Weise entlang eines Spinnzwickels erstreckt. Der Durchmesser des Saugeinsatzes 1 ist nur um soviel geringer als der des Mantels 2, daß der Saugeinsatz 1 unmittelbar hinter dem Mantel 2 liegt und nur durch einen schmalen Spalt von diesem getrennt ist. Der Saugeinsatz 1 hat über seine gesamte Länge einen gleichbleibenden Querschnitt, der sich vorzugsweise auch in der Saugleitung 11 bis zur Unterdruckquelle fortsetzt. Der Spinnzwickel wird vom Mantel 2 sowie einer parallel und eng neben diesem angeordneten zweiten Friktionswalze 3 gebildet, wobei die letztere ebenfalls als Saugwalze ausgebildet sein oder gemäß dem Ausführungsbeispiel einen geschlossenen Mantel haben kann (Figur 4). Die beiden Friktionswalzen werden gleichsinnig angetrieben, beispielsweise durch einen Tangentialriemen 4.In Figure 1, 1 denotes a cylindrical suction insert, which is connected by means of a suction line 11 to a vacuum source, not shown. The suction insert 1 is arranged in the jacket 2 of a friction roller provided with perforations 20 and has a suction slot 12 which extends in a known manner along a spinning gusset. The diameter of the suction insert 1 is only so much smaller than that of the casing 2 that the suction insert 1 is located directly behind the casing 2 and is separated from it only by a narrow gap. The suction insert 1 has a constant cross section over its entire length, which is preferably also in the suction line 11 continues to the vacuum source. The spinning gusset is formed by the jacket 2 and a second friction roller 3 arranged parallel and closely next to it, the latter also being designed as a suction roller or, according to the exemplary embodiment, can have a closed jacket (FIG. 4). The two friction rollers are driven in the same direction, for example by a tangential belt 4.

Die Lagerung des mit seinem nicht perforierten Teil über den Saugeinsatz 1 hinausragenden Mantels 2 erfolgt fliegend auf einer Achse 5, deren eines Ende in einer ortsfesten Halterung 51 eingespannt ist. Das andere Ende der Achse 5 ist paßgenau in einer Bohrung eingesetzt, die in einem Boden 13 des Saugeinsatzes 1 an dem der Saugleitung 11 abgewandten Ende vorgesehen ist. Der Boden 13 kann integrierter Bestandteil des Saugeinsatzes 1 oder in diesen eingepreßt sein.The casing 2, with its non-perforated part projecting beyond the suction insert 1, is suspended on an axis 5, one end of which is clamped in a stationary holder 51. The other end of the axis 5 is inserted with a precise fit in a bore which is provided in a bottom 13 of the suction insert 1 at the end facing away from the suction line 11. The bottom 13 can be an integral part of the suction insert 1 or pressed into it.

Die Lagerung des Mantels 2 auf der Achse 5 erfolgt vorzugsweise mittels eines Wälzlagers, jedoch ist gegebenenfalls auch eine Gleitlagerung möglich. Das für die Lagerung verwendete Wälzlager 6 besteht aus mindestens zwei Laufringen 61 und 62, die in einem Abstand voneinander auf der als Innenring dienenden Achse 5 angeordnet und mit dieser in einer Lagerhülse 63 eingesetzt sind. Dadurch ergibt sich eine kompakte und leicht zu handhabende vorgefertigte Lagereinheit, auf deren Lagerhülse 63 der Mantel 2 problemlos und schnell drehfest aufgepreßt werden kann. Dabei wird zweckmäßig, wie in Figur 1 gezeigt, der zweite Laufring 62 des Wälzlagers 6 in einem solchen Abstand vom ersten Laufring 61 angeordnet, daß er außerhalb des Mantels 2 liegt, die Lagerhülse 63 also entsprechend aus dem Mantel 2 herausragt. Damit wird zum einen durch den vergrößerten Lagerabstand der Rundlauf des Mantels 2 weiter verbessert und zum anderen die Möglichkeit geschaffen, den Mantel 2 mittels eines Riemens, zweckmäßig eines Tangentialriemens 4, über den aus dem Mantel 2 ragenden Teil der Lagerhülse 63 anzutreiben. Dadurch wird die Anpreßkraft des Riemens direkt, ohne Kippmoment, auf die Lagerung übertragen.The casing 2 is preferably mounted on the axis 5 by means of a roller bearing, but a sliding bearing is also possible if necessary. The rolling bearing 6 used for the storage consists of at least two races 61 and 62, which are arranged at a distance from one another on the axis 5 serving as the inner ring and are inserted with this in a bearing sleeve 63. This results in a compact and easy-to-use prefabricated bearing unit, on the bearing sleeve 63 of which the casing 2 can be quickly and easily pressed in a rotationally fixed manner. It is useful, as shown in Figure 1, the second race 62 of the rolling bearing 6 at such a distance from the first race 61 that it lies outside the shell 2, the bearing sleeve 63 protrudes accordingly from the jacket 2. Thus, on the one hand, the concentricity of the casing 2 is further improved by the increased bearing distance, and on the other hand the possibility is created of driving the casing 2 by means of a belt, expediently a tangential belt 4, via the part of the bearing sleeve 63 protruding from the casing 2. As a result, the belt's contact pressure is transferred directly to the bearing without any tipping moment.

Dabei läßt sich durch entsprechende Bemessung des Wälzlagers 6 oder durch eine im Antriebsbereich auf die Lagerhülse 63 aufgepreßte Büchse 40 die Umfangsgeschwindigkeit des Mantels 2 je nach Bedarf variieren. Um auch bei einer solchen Veränderung des Lagerdurchmessers im Antriebsbereich einen geradlinigen Lauf des Tangentialriemens 4 sicherzustellen, ist die Friktionswalze gegen den Tangentialriemen 4 verschiebbar gelagert. Dies ist in Figur 4 durch unterschiedliche Achsebenen der beiden Friktionswalzen angedeutet. Die Verschiebung "a" wird beispielsweise dadurch möglich, daß die Achse 5 in einem Langloch in der Halterung 51 lösbar befestigt oder über einen Drehpunkt schwenkbar gelagert ist.The circumferential speed of the casing 2 can be varied as required by appropriate dimensioning of the roller bearing 6 or by a bush 40 pressed onto the bearing sleeve 63 in the drive area. In order to ensure that the tangential belt 4 runs in a straight line even with such a change in the bearing diameter in the drive area, the friction roller is displaceably mounted against the tangential belt 4. This is indicated in Figure 4 by different axis planes of the two friction rollers. The displacement "a" is possible, for example, in that the axis 5 is detachably fastened in an elongated hole in the holder 51 or is pivotably mounted about a pivot point.

Das Ausführungsbeispiel gemäß Figur 2 unterscheidet sich von dem in Figur 1 gezeigten, dadurch, daß der Saugeinsatz 1 in dem Bereich zwischen dem freien Ende des fliegend gelagerten Mantels 2 und dem Anschlußende der Saugleitung 11 noch eine Abstützung 52 hat.The embodiment according to FIG. 2 differs from that shown in FIG. 1 in that the suction insert 1 also has a support 52 in the area between the free end of the overhung casing 2 and the connection end of the suction line 11.

Bei dem in Figur 3 dargestellten Ausführungsbeispiel ist der zylindrische Saugeinsatz 1 in einer ortsfesten Halterung 7 fliegend gelagert. Die Halterung 7 enthält einen Saugluftkanal 71, über den mittels der Saugleitung 11 der Anschluß an eine Saugluftquelle erfolgt. Eine Luftdurchtrittsöffnung 14 im Saugeinsatz 1 stellt die Verbindung des Saugluftkanals 71 mit dem Inneren des Saugeinsatzes 1 her, der innerhalb des Mantels 2 unmittelbar hinter diesem angeordnet ist und über seine gesamte Länge einen gleichbleibenden Querschnitt hat. Einen gleichgroßen Querschnitt wie der Saugeinsatz 1 hat der Saugluftkanal 71 und vorzugsweise auch die Saugleitung 11.In the embodiment shown in FIG. 3, the cylindrical suction insert 1 is overhung in a stationary holder 7. The holder 7 contains a suction air duct 71, via which the suction line 11 is used to connect to a suction air source. An air passage opening 14 in the suction insert 1 establishes the connection of the suction air duct 71 with the interior of the suction insert 1, which is arranged directly behind the casing 2 and has a constant cross section over its entire length. The suction air duct 71 and preferably also the suction line 11 have a cross section of the same size as the suction insert 1.

Die das Wälzlager 6 tragende und als dessen Innenring dienende Achse 15 ist auf dem der Halterung 7 abgewandten Ende des Saugeinsatzes 1 in die Bohrung im Boden 13 des Saugeinsatzes 1 eingepreßt. Der Mantel 2 wird auch hier einfach auf die Lagerhülse 63 des vorgefertigten Lagers aufgepreßt und über den vom Mantel 2 nicht abgedeckten Teil der Lagerhülse 63 mittels des Tangentialriemens 4 angetrieben.The bearing 15 supporting the roller bearing and serving as its inner ring is pressed into the hole in the bottom 13 of the suction insert 1 on the end of the suction insert 1 facing away from the holder 7. The jacket 2 is also simply pressed onto the bearing sleeve 63 of the prefabricated bearing and driven via the part of the bearing sleeve 63 not covered by the jacket 2 by means of the tangential belt 4.

Das von der Achse 5 abgewandte offene Ende des Saugeinsatzes 1 ist durch ein Verschlußglied 8 verschlossen. Das Verschlußglied 8 ist als Drehschieber ausgebildet, der sich bis in Nähe der Achse 5 erstreckt. Die Art der Lagerung ermöglicht es, dieses Verschlußglied 8 unbehindert durch Bauteile stirnseitig zu betätigen, und dadurch den Saugschlitz 12 und/oder die Luftdurchtrittsöffnung 14 je nach Bedarf zu verschließen oder zu öffnen.The open end of the suction insert 1 facing away from the axis 5 is closed by a closure member 8. The closure member 8 is designed as a rotary slide which extends in the vicinity of the axis 5. The type of storage makes it possible to operate this closure member 8 unhindered by components on the end face, and thereby to close or open the suction slot 12 and / or the air passage opening 14 as required.

Bei Anordnung der Achse 5 auf der der Fadenabzugsrichtung entgegengesetzten Seite der Friktionswalze ist es ferner möglich, die Achse 5 als Hohlachse auszubilden und in diese ein U-förmig zum Spinnzwickel hin gebogenes Saugrohr 9 einzusetzen, durch das hindurch Außenluft angesaugt wird. Diese Ausbildung ermöglicht es, einen entgegen der Fadenabzugsrichtung in den Bereich des Spinnzwickels gebrachten Anspinnfaden anzusaugen und bis zum Starten des Spinnvorganges zu speichern. Das Ansaugen des Anspinnfadens erfolgt zweckmäßig in einer Stellung des Verschlußgliedes 8, in welcher der Saugschlitz 12 verschlossen ist, die Luftdurchtrittsöffnung 14 aber geöffnet bleibt.If the axis 5 is arranged on the side of the friction roller opposite to the thread take-off direction, it is also possible to design the axis 5 as a hollow axis and to use a suction tube 9 bent into it in a U-shape towards the spinning gusset, through which outside air is sucked in. This design makes it possible to draw in a piecing thread brought into the region of the spinning gusset in the direction opposite to the thread take-off direction and to save it until the spinning process starts. The piecing thread is expediently drawn in a position of the closure member 8 in which the suction slot 12 is closed, but the air passage opening 14 remains open.

Selbstverständlich kann auch eine Walze, die einen geschlossenen Mantel hat, in der erfindungsgemäßen Weise gelagert werden, um gleiche Lagerverhältnisse zu schaffen.Of course, a roller having a closed jacket can also be stored in the manner according to the invention in order to create the same storage conditions.

Claims (11)

1. An open-end spinning device with two adjacently arranged friction rollers which form a spinning nip, are driven in the same direction and of which at least one has a perforated sheath which is mounted in cantilever fashion in one end region and in whose interior there is arranged a suction insert which is connected to a vacuum source, has a suction slit and has a uniform cross section up to the connection to the suction line, characterised in that the sheath (2) is mounted on a shaft (5) of which one end is inserted into the suction insert (1) and in that the suction insert (1) is arranged inside the sheath (2) directly behind it.
2. An open-end spinning device according to claim 1, characterised in that the other end of the shaft (5) is mounted in cantilever fashion in a stationary mounting (51).
3. An open-end spinning device according to claim 1, characterised in that the suction insert (1) is mounted in cantilever fashion in a stationary mounting (7) and the shaft (5) is inserted into the free end of the suction insert (1) remote from the mounting (7).
4. An open-end spinning device according to one of claims 1 to 3, characterised in that the shaft (5) is the inner race of a rolling bearing (6) consisting of at least two axially spaced bearing races (61, 62).
5. An open-end spinning device according to claim 4, characterised in that the shaft (5) is inserted with the bearing races (61, 62) into a bearing sleeve (63).
6. An open-end spinning device according to claim 5, characterised in that the second bearing race (62) of the rolling bearing (6) is arranged at such a distance from the first bearing race (61) in the bearing sleeve (63) that it lies outside the sheath (2).
7. An open-end spinning device according to claim 6, characterised in that the sheath (2) is driven via the part of the bearing sleeve (63) projecting from the sheath (2).
8. An open-end spinning device according to claim 7, characterised in that the friction roller can be displaced against the driving belt (4) in adaptation to an altered driving diameter of the rolling bearing (6).
9. An open-end spinning device according to claim 2, characterised in that the suction insert (1) is supported in the region of its end remote from the shaft (5).
10. An open-end spinning device according to claim 3, characterised in that the shaft (5) is arranged on the side remote from the yarn take-off direction and is constructed as a hollow shaft into which a suction tube (9) bent in the form of a U toward the spinning nip is inserted.
11. An open-end spinning device according to claim 3, characterised in that the end, remote from the shaft (5), of the suction insert (1) mounted in cantilever fashion can be closed by a closure member (8) constructed as a rotary slide valve and extending into the vicinity of the shaft (5).
EP86106319A 1985-07-06 1986-05-09 Open-end spinning device Expired - Lifetime EP0208084B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3524313 1985-07-06
DE19853524313 DE3524313A1 (en) 1985-07-06 1985-07-06 OPEN-END SPIDER

Publications (3)

Publication Number Publication Date
EP0208084A2 EP0208084A2 (en) 1987-01-14
EP0208084A3 EP0208084A3 (en) 1987-08-12
EP0208084B1 true EP0208084B1 (en) 1990-09-19

Family

ID=6275200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86106319A Expired - Lifetime EP0208084B1 (en) 1985-07-06 1986-05-09 Open-end spinning device

Country Status (8)

Country Link
US (1) US4700539A (en)
EP (1) EP0208084B1 (en)
JP (1) JPS6215333A (en)
CN (1) CN1004498B (en)
BR (1) BR8602987A (en)
CS (1) CS275873B6 (en)
DE (2) DE3524313A1 (en)
IN (1) IN168076B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397395B (en) * 1990-11-22 1994-03-25 Fehrer Textilmasch Apparatus for dividing a drawn fibre roving
JP4455376B2 (en) * 2005-03-08 2010-04-21 旭化成株式会社 Filter unit and manufacturing method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316658A1 (en) * 1983-05-06 1985-01-17 Fritz 7347 Bad Überkingen Stahlecker Device for open-end friction spinning

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2810184A1 (en) * 1978-03-09 1979-09-13 Barmag Barmer Maschf Open=end spinning unit - has ridges round mantles of the two sieve drums
EP0062404B2 (en) * 1981-02-21 1992-06-24 Hollingsworth (U.K.) Limited Friction open-end spinning apparatus
AT390276B (en) * 1982-12-03 1990-04-10 Fehrer Textilmasch DEVICE FOR PRODUCING A YARN
AT385283B (en) * 1983-07-13 1988-03-10 Fehrer Textilmasch DEVICE FOR PRODUCING A YARN
DE3326405C2 (en) * 1983-07-22 1986-04-10 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Open-end rotor spinning device
JPS6175828A (en) * 1984-09-17 1986-04-18 Toyoda Autom Loom Works Ltd Drive device for twisting roller in adsorbing, twisting and spinning device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3316658A1 (en) * 1983-05-06 1985-01-17 Fritz 7347 Bad Überkingen Stahlecker Device for open-end friction spinning

Also Published As

Publication number Publication date
JPH0340127B2 (en) 1991-06-18
IN168076B (en) 1991-02-02
CS275873B6 (en) 1992-03-18
DE3674274D1 (en) 1990-10-25
JPS6215333A (en) 1987-01-23
BR8602987A (en) 1987-02-17
CN86105658A (en) 1987-02-25
EP0208084A2 (en) 1987-01-14
US4700539A (en) 1987-10-20
CN1004498B (en) 1989-06-14
DE3524313C2 (en) 1987-11-12
EP0208084A3 (en) 1987-08-12
DE3524313A1 (en) 1987-01-15

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