EP2365114B1 - Method for producing a disintegrating roller housing of an open end spinning machine and disintegrating roller housing - Google Patents

Method for producing a disintegrating roller housing of an open end spinning machine and disintegrating roller housing Download PDF

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Publication number
EP2365114B1
EP2365114B1 EP11001848.8A EP11001848A EP2365114B1 EP 2365114 B1 EP2365114 B1 EP 2365114B1 EP 11001848 A EP11001848 A EP 11001848A EP 2365114 B1 EP2365114 B1 EP 2365114B1
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EP
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Prior art keywords
opening roller
roller housing
opening
housing
sandblasting
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EP11001848.8A
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German (de)
French (fr)
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EP2365114A1 (en
Inventor
Heinz-Georg Wassenhoven
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Saurer Spinning Solutions GmbH and Co KG
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Saurer Germany GmbH and Co KG
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Publication of EP2365114A1 publication Critical patent/EP2365114A1/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
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • the invention relates to a method for producing an opening roller housing of an open-end spinning device having the features of the preamble of claim 1 and an opening roller housing, which is produced by this method.
  • Opening cylinder housings for open-end spinning devices have long been known and described in detail in numerous patent applications.
  • a sliver-opening device for an open-end spinning device whose substantially rectangular opening roller housing is made of a lightweight metallic material and which has a circular opening roller receptacle.
  • the opening roller housing has a front wall and a rear wall, which form special air guide surfaces.
  • two openings are incorporated into the circumferential wall of the opening roller receptacle, wherein a first, relatively large opening serves to feed a sliver and to separate out dirt particles, and via this opening also the spinning air required during the spinning process flows.
  • the first opening has side air guide surfaces formed by the inside of the front wall and the inside of the rear wall of the opening roller case as seen in front view.
  • Faserleitkanal connects the opening roller housing with the spinning rotor. That is, during the spinning operation, the good single fibers combed out of the original roller belt by the opening roller emerge from the opening roller housing via the second opening and are fed into the spinning rotor via the fiber guide channel while dirt particles are discharged through the first opening.
  • opening roller housing in the die-casting process. That is, by means of a die-casting process, a blank is first created, which is then machined. In this mechanical processing, which is carried out, for example, as PCD machining, the opening roller housing is given its required dimensions. In order to make the opening roller housing, especially the surfaces in the area of the opening roller holder, more resistant to abrasion, the opening roller housing also receives a coating with a chemical nickel layer and is finally tempered.
  • the present invention seeks to develop a method that allows a more cost-effective production of high quality and very reliable opening cylinder housing. This object is achieved by a method as described in claim 1.
  • Advantageous embodiments of the method according to the invention are the subject of the dependent claims 2-4.
  • the claim 5 relates to an opening roller housing, which is produced by the process according to the invention.
  • the method according to the invention in which the dissolving roller housing is subjected to a sandblasting medium in a final treatment in such a way that at least the surface of the opening roller receptacle is microcompacted, thereby obtaining a relatively large roughness, has the advantage that it can be ensured in this way that during operation the dissolving roller housing in the region of the surface no harmful adhesion forces occur, so that it is ensured that within the opening roller receiving a proper transport of combed individual fibers can take place.
  • the final treatment of the opening roller receptacle with a special sandblasting medium makes it possible in a relatively simple manner to prevent the occurrence of relatively strong adhesion forces on the surfaces of the opening roller receptacle due to the very low roughness values usual after PCD machining. that form deposits on the fiber-guiding surfaces of the opening roller housing.
  • the sandblasting medium used is a material consisting of spherical individual elements with a diameter between 1 ⁇ m and 10 ⁇ m.
  • sandblasting media for example, ceramic balls or steel balls.
  • the surface of the opening roller can be roughened in a final treatment in a relatively simple manner so that there are surfaces in the area of the opening roller, which are relatively insensitive especially against deposits.
  • the micro-compression of the surface occurring in such sandblasting media has a very positive effect on the stability of the opening roller housing.
  • At least one roughness depth of the surface of the opening roller receptacle has a multiple of the roughness depth before the sandblasting method according to the sandblasting method according to the invention.
  • the highly abrasion-prone tear-off edge arranged in the region of the opening roller receptacle behind the fiber outlet opening is secured against abrasion after sandblasting by a ceramic pin.
  • an opening roller housing can be provided which, as described in claim 5, characterized in that at least the opening roller shot by a sandblast in a final treatment has a micro-compressed surface with a roughness that has no sharp edges, the Affect transport of the individual fiber and ensures that no adhesion forces occur in the area of the surface, so that It is ensured that in the area of the opening roller absorption a proper transport of combed single fibers is given.
  • Such an opening roller housing is not only advantageous because very reliable during operation, but also relatively inexpensive to manufacture.
  • the Fig. 1 shows in side view a generally designated by the reference numeral 1 open-end spinning device to which the opening roller housing 17 produced by the process according to the invention is used.
  • such open-end spinning devices 1 each have a rotor housing 2, in which a spinning rotor 3 rotates at high speed.
  • the spinning rotor 3 is supported with its rotor shaft 4 in the gusset of a support disk bearing 5 and is acted upon by a machine-long tangential belt 6, which is employed by a pressure roller 7.
  • the rotor housing 2 which is open at the front, is in operation by a pivotably mounted cover element 8, in FIG the one (not shown) channel plate is incorporated with a seal 9, closed.
  • the rotor housing 2 is also connected via a corresponding vacuum line 10 to a vacuum source 11, which generates the necessary during the spinning operation in the rotor housing 2 spinning vacuum.
  • a preferably replaceable channel plate extension a so-called channel plate adapter 12, embedded, which has the thread withdrawal nozzle 13 and the mouth region of the Faserleitkanales 14, wherein the Fadenabzugsdüse 13, a thread withdrawal tube 15 is connected.
  • the opening roller 21 is driven in the region of its whorl 23 by a rotating, machine-long tangential belt 24, while the drive (not shown) of the sliver feed cylinder 22 preferably via a worm gear arrangement, which is connected to a machine-length drive shaft 25.
  • the opening cylinder housing 17, which is described below with reference to FIG. 2 is explained in more detail during the spinning process by a closure lid 26 which is secured by a latch 27, closed at the front.
  • a dirt removal device 30 Through which the precipitated dirt particles are disposed of.
  • the opening cylinder housing 17 has a circular opening roller receptacle 31, which has a double graduation 32 at its front.
  • a central bore 34 is incorporated, which is encompassed by the whorl 23 of the opening roller 21 in the assembled state.
  • the opening cylinder housing 17 also has a relatively large first opening 28 arranged in the direction of rotation of the opening roller behind the sliver feed cylinder 22, through which the dirt particles 29 released from the sliver are removed and the spinning air required during the spinning process is supplied. That is, the circular opening roller receptacle 31 is open to the surface of its peripheral wall 35 between the sliver feed point, which is visible through the bore 36 for the sliver feed cylinder 22, and a baffle 37 and forms in this area the so-called sliver inlet and dirt outlet opening 28th In the surface of the peripheral wall 35 of the opening roller receptacle 31 also has a bore 38 is incorporated, which serves to receive a replaceable fixable Faserleitkanals 14 and 35 forms a second opening 39 in the region of the peripheral wall.
  • This opening roller housing blank is then subjected to a mechanical processing in which, as is known, all the necessary dimensions are worked out.
  • the mechanical processing is preferably carried out by so-called PCD machining, that is, the cutting tools that are used are made of polycrystalline diamond.
  • PCD machining has the advantage that, in particular for larger quantities, a cost-effective and always very dimensionally accurate machining of opening cylinder housings is possible.
  • a final treatment of the opening roller housing (17) by the sandblasting method according to the invention takes place immediately. That is, the opening roller housings (17) are immediately subjected to a sandblasting process with a special sand blasting medium after the PCD machining.
  • sandblasting media are used, which consist of spherical individual elements whose diameter is between 1 .mu.m and 10 .mu.m.
  • the sandblasting method with ceramic balls or steel balls, at least one of the roughness depths of the surfaces of the opening cylinder housing (17) at risk of contamination is raised to a multiple of the roughness depth before sandblasting.
  • polluting surfaces of the Opening roller housing (17) are the surfaces (33, 35) of the opening roller (31), the surfaces of the air guide surfaces (44, 45) and the surface of the baffle surface (37) to look at.
  • This relatively large surface roughness reliably prevents deposits from being formed on the fiber-guiding surfaces of the opening roller housing during spinning due to adhesion forces, which is not only visually very unattractive, but also has a disruptive effect on the fiber flow.

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

Description

Die Erfindung betrifft ein Verfahren zum Herstellen eines Auflösewalzengehäuses einer Offenend-Spinnvorrichtung mit den Merkmalen des Oberbegriffs des Anspruchs 1 sowie ein Auflösewalzengehäuse, das nach diesem Verfahren hergestellt ist.The invention relates to a method for producing an opening roller housing of an open-end spinning device having the features of the preamble of claim 1 and an opening roller housing, which is produced by this method.

Auflösewalzengehäuse für Offenend-Spinnvorrichtungen sind seit langem bekannt und in zahlreichen Patentanmeldungen ausführlich beschrieben.Opening cylinder housings for open-end spinning devices have long been known and described in detail in numerous patent applications.

Durch die DE 197 09 213 A1 ist beispielsweise eine FaserbandAuflöseeinrichtung für eine Offenend-Spinnvorrichtung bekannt, deren im Wesentlichen rechteckiges Auflösewalzengehäuse aus einem leichtmetallischen Werkstoff gefertigt ist und das eine kreisrunde Auflösewalzenaufnahme aufweist.
Außerdem verfügt das Auflösewalzengehäuse über eine Vorderwand und eine Rückwand, die spezielle Luftführungsflächen bilden.By the DE 197 09 213 A1 For example, a sliver-opening device for an open-end spinning device is known, whose substantially rectangular opening roller housing is made of a lightweight metallic material and which has a circular opening roller receptacle.
In addition, the opening roller housing has a front wall and a rear wall, which form special air guide surfaces.

In die Umfangswandung der Auflösewalzenaufnahme sind des Weiteren zwei Öffnungen eingearbeitet, wobei eine erste, relativ große Öffnung dem Zuführen eines Faserbandes sowie dem Ausscheiden von Schmutzpartikeln dient und über diese Öffnung auch die während des Spinnprozesses benötigte Spinnluft einströmt.In addition, two openings are incorporated into the circumferential wall of the opening roller receptacle, wherein a first, relatively large opening serves to feed a sliver and to separate out dirt particles, and via this opening also the spinning air required during the spinning process flows.

Das bedeutet, die erste Öffnung weist seitliche Luftführungsflächen auf, die, in Vorderansicht gesehen, durch die Innenseite der Vorderwandung und die Innenseite der Rückwandung des Auflösewalzengehäuses gebildet werden.That is, the first opening has side air guide surfaces formed by the inside of the front wall and the inside of the rear wall of the opening roller case as seen in front view.

An eine zweite, deutlich kleinere Öffnung ist ein sogenannter Faserleitkanal angeschlossen, der das Auflösewalzengehäuse mit dem Spinnrotor verbindet.
Das heißt, während des Spinnbetriebes treten die durch die Auflösewalze aus einem Vorlagefaserband ausgekämmten, guten Einzelfasern über die zweite Öffnung aus dem Auflösewalzengehäuse aus und werden über den Faserleitkanal in den Spinnrotor eingespeist, während Schmutzpartikel über die erste Öffnung ausgetragen werden.At a second, much smaller opening a so-called Faserleitkanal is connected, which connects the opening roller housing with the spinning rotor.
That is, during the spinning operation, the good single fibers combed out of the original roller belt by the opening roller emerge from the opening roller housing via the second opening and are fed into the spinning rotor via the fiber guide channel while dirt particles are discharged through the first opening.

Auch wenn dies in der DE 197 09 213 A1 nicht ausdrücklich beschrieben ist, ist es seit langem Stand der Technik, derartige Auflösewalzengehäuse im Druckguss-Verfahren zu fertigen.
Das heißt, mittels eines Druckguss-Verfahrens wird zunächst ein Rohling erstellt, der anschließend mechanisch bearbeitet wird. Bei dieser mechanischen Bearbeitung, die beispielsweise als PKD-Bearbeitung ausgeführt wird, erhält das Auflösewalzengehäuse seine erforderlichen Abmessungen.
Um das Auflösewalzengehäuse, speziell die Oberflächen im Bereich der Auflösewalzenaufnahme, abriebsfester zu machen, erhält das Auflösewalzengehäuse außerdem eine Beschichtung mit einer Chemisch-Nickel-Schicht und wird zum Abschluss getempert.Even if this is in the DE 197 09 213 A1 is not explicitly described, it has long been state of the art to manufacture such opening roller housing in the die-casting process.
That is, by means of a die-casting process, a blank is first created, which is then machined. In this mechanical processing, which is carried out, for example, as PCD machining, the opening roller housing is given its required dimensions.
In order to make the opening roller housing, especially the surfaces in the area of the opening roller holder, more resistant to abrasion, the opening roller housing also receives a coating with a chemical nickel layer and is finally tempered.

Derartige, aus einem leichtmetallischen Werkstoff hergestellte und mit einer Chemisch-Nickel-Schicht versehenen Auflösewalzengehäuse haben sich in der Praxis bewährt und sind bei Offenend-Rotorspinnmaschinen in großer Stückzahl im Einsatz. Nachteilig bei diesen Auflösewalzengehäusen sind allerdings deren relativ hohe Herstellungskosten; insbesondere die Beschichtung der Auflösewalzengehäuse mit einer Chemisch-Nickel-Schicht macht sich bei der Herstellung kostenmäßig recht negativ bemerkbar.Such, made of a light metal material and provided with a chemical nickel layer opening cylinder housing have proven themselves in practice and are in open-end rotor spinning in large numbers in use. A disadvantage of these Auflösewalzengehäusen, however, are their relatively high production costs; In particular, the coating of the opening cylinder housing with a chemico-nickel layer makes itself negatively noticeable in terms of cost.

Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zu entwickeln, das eine kostengünstigere Herstellung qualitativ hochwertiger und sehr funktionssicherer Auflösewalzengehäuse ermöglicht.
Diese Aufgabe wird erfindungsgemäß durch ein Verfahren gelöst, wie es im Anspruch 1 beschrieben ist.
Vorteilhafte Ausgestaltungen des erfindungsgemäßen Verfahrens sind Gegenstand der Unteransprüche 2-4.Based on the aforementioned prior art, the present invention seeks to develop a method that allows a more cost-effective production of high quality and very reliable opening cylinder housing.
This object is achieved by a method as described in claim 1.
Advantageous embodiments of the method according to the invention are the subject of the dependent claims 2-4.

Der Anspruch 5 betrifft ein Auflösewalzengehäuse, das nach dem erfindungsgemäßen Verfahren hergestellt ist.
Das erfindungsgemäße Verfahren, bei dem das Auflösewalzengehäuse in einer Endbehandlung so mit einem Sandstrahlmedium beaufschlagt wird, dass wenigstens die Oberfläche der Auflösewalzenaufnahme mikroverdichtet wird und dabei eine relativ große Rauhigkeit erhält, hat den Vorteil, dass auf diese Weise sichergestellt werden kann, dass während des Betriebes des Auflösewalzengehäuses im Bereich der Oberfläche keine schädlichen Adhäsionskräfte auftreten, so dass gewährleistet ist, dass innerhalb der Auflösewalzenaufnahme ein ordnungsgemäßer Transport von ausgekämmten Einzelfasern stattfinden kann.
Das heißt, durch die Endbehandlung der Auflösewalzenaufnahme mit einem speziellen Sandstrahlmedium kann auf relativ einfache Weise vermieden werden, dass es aufgrund der nach einer PKD-Bearbeitung üblichen, sehr geringen Rauheitswerte auf den Oberflächen der Auflösewalzenaufnahme zum Auftreten relativ starker Adhäsionskräfte kommt, die dazu führen, dass sich an den faserführenden Oberflächen des Auflösewalzengehäuses Ablagerungen bilden.The claim 5 relates to an opening roller housing, which is produced by the process according to the invention.
The method according to the invention, in which the dissolving roller housing is subjected to a sandblasting medium in a final treatment in such a way that at least the surface of the opening roller receptacle is microcompacted, thereby obtaining a relatively large roughness, has the advantage that it can be ensured in this way that during operation the dissolving roller housing in the region of the surface no harmful adhesion forces occur, so that it is ensured that within the opening roller receiving a proper transport of combed individual fibers can take place.
That is to say, the final treatment of the opening roller receptacle with a special sandblasting medium makes it possible in a relatively simple manner to prevent the occurrence of relatively strong adhesion forces on the surfaces of the opening roller receptacle due to the very low roughness values usual after PCD machining. that form deposits on the fiber-guiding surfaces of the opening roller housing.

Bislang konnte das Auftreten von zu starken Ablagerungen an den faserführenden Oberflächen nur dadurch verhindert werden, dass die Auflösewalzengehäuse, abhängig vom jeweiligen Verschmutzungsgrat der zu verarbeitenden Baumwolle, in bestimmten Zeitintervallen regelmäßig gereinigt wurden.So far, the occurrence of excessive deposits on the fiber-guiding surfaces could only be prevented by the fact that the opening roller housings were regularly cleaned at specific time intervals, depending on the particular soil of the cotton to be processed.

Als Sandstrahlmedium kommt ein Material zum Einsatz, das aus kugelförmigen Einzelelementen mit einem Durchmesser zwischen 1 µm und 10 µm besteht.
Durch das Aufrauen der Oberfläche der Auflösewalzenaufnahme mit einem Material, das aus kugelförmigen Einzelelementen mit einem Durchmesser zwischen 1 µm und 10 µm besteht, kann eine
relativ große, verhältnismäßig gleichmäßige Rauheit der behandelten Oberflächen realisiert werden, wobei gleichzeitig zuverlässig verhindert wird, dass die Oberfläche während des Sandstrahlvorgangs so verändert wird, das ein kontinuierlicher Einzelfasertransport nicht mehr gewährleistet ist.
Das heißt, durch ein solches Sandstrahlmedium kann sichergestellt werden, dass die Oberflächen zwar eine das Auftreten von Adhäsionskräften verhindernde Rauhigkeit aufweisen, aber keine Kanten, die den Transport von Einzelfasern beeinträchtigen würden.The sandblasting medium used is a material consisting of spherical individual elements with a diameter between 1 μm and 10 μm.
By roughening the surface of the Auflösewalzenaufnahme with a material consisting of spherical individual elements with a diameter between 1 .mu.m and 10 .mu.m, a
relatively large, relatively uniform roughness of the treated surfaces are realized, while reliably preventing the surface during the sandblasting process is changed so that a continuous single fiber transport is no longer guaranteed.
That is, such a sandblasting medium can ensure that the surfaces have roughness preventing the occurrence of adhesion forces, but no edges that would interfere with the transport of individual fibers.

Wie in den Ansprüchen 2 und 3 dargelegt, können als vorteilhafte Sandstrahlmedien zum Beispiel Keramikkugeln oder Stahlkugeln zum Einsatz kommen.
Mit solchen Sandstrahlmedien können die Oberfläche der Auflösewalzenaufnahme in einer Endbehandlung auf relativ einfache Weise so aufgeraut werden, dass im Bereich der Auflösewalzenaufnahme Oberflächen vorliegen, die insbesondere gegenüber Ablagerungen relativ unempfindlich sind.As set forth in claims 2 and 3, can be used as advantageous sandblasting media, for example, ceramic balls or steel balls.
With such sandblasting media, the surface of the opening roller can be roughened in a final treatment in a relatively simple manner so that there are surfaces in the area of the opening roller, which are relatively insensitive especially against deposits.

Außerdem wirkt sich die bei solchen Sandstrahlmedien auftretende Mikroverdichtung der Oberfläche sehr positiv auf die Standfestigkeit des Auflösewalzengehäuses aus.
Wenigstens eine Rautiefe der Oberfläche der Auflösewalzenaufnahme weist nach dem erfindungsgemäßen Sandstrahlverfahren ein Mehrfaches der Rautiefe vor dem Sandstrahlverfahren auf.
Durch die bei der Endbehandlung mit dem erfindungsgemäßen Sandstrahlverfahrenen erzielbaren, relativ großen Rautiefen wird zuverlässig verhindert, dass es während des Spinnens aufgrund von Adhäsionskräften an faserführenden Oberflächen des Auflösewalzengehäuses zu Ablagerungen kommen kann, was nicht nur optisch sehr unschön ist, sondern sich auch störend auf den Faserfluss der ausgekämmten und zum Spinnrotor zu transportierenden Einzelfasern auswirkt.In addition, the micro-compression of the surface occurring in such sandblasting media has a very positive effect on the stability of the opening roller housing.
At least one roughness depth of the surface of the opening roller receptacle has a multiple of the roughness depth before the sandblasting method according to the sandblasting method according to the invention.
By achievable in the final treatment with the sandblasting method according to the invention, relatively large roughness is reliably prevented that it can occur during spinning due to adhesion forces on fiber-guiding surfaces of the opening roller housing to deposits, which is not only visually very ugly, but also disturbing the Fiber flow of the combed out and to the spinning rotor to be transported single fibers.

Gemäß Anspruch 4 ist des Weiteren vorgesehen, dass die im Bereich der Auflösewalzenaufnahme hinter der Faseraustrittsöffnung angeordnete, hoch abriebsgefährdete Abrisskante nach dem Sandstrahlen durch einen Keramikstift gegen Abrieb gesichert wird.According to claim 4, it is further provided that the highly abrasion-prone tear-off edge arranged in the region of the opening roller receptacle behind the fiber outlet opening is secured against abrasion after sandblasting by a ceramic pin.

Auf diese Weise wird gewährleistet, dass der am höchsten beanspruchte Bereich des Auflösewalzengehäuses, der im Eingangsbereich des Faserleitkanals an der sogenannten Faserabrisskante gegeben ist, einen zusätzlichen Verschleißschutz erhält.In this way, it is ensured that the highest-stressed area of the opening cylinder housing, which is provided in the entry region of the fiber guide channel at the so-called fiber tear-off edge, receives additional wear protection.

Durch Anwendung des erfindungsgemäßen Verfahrens kann ein Auflösewalzengehäuse geschaffen werden, das, wie im Anspruch 5 beschrieben, dadurch gekennzeichnet ist, dass wenigstens die Auflösewalzenaufnahme durch ein Sandstrahlen in einer Endbehandlung eine mikroverdichtete Oberfläche mit einer Rauhigkeit aufweist, die über keine scharfen Kanten verfügt, die den Transport der Einzelfaser beeinträchtigen und die sicherstellt, dass im Bereich der Oberfläche keine Adhäsionskräfte auftreten, so dass gewährleistet ist, dass im Bereich der Auflösewalzenaufnahme ein ordnungsgemäßer Transport von ausgekämmten Einzelfasern gegeben ist.By using the method according to the invention, an opening roller housing can be provided which, as described in claim 5, characterized in that at least the opening roller shot by a sandblast in a final treatment has a micro-compressed surface with a roughness that has no sharp edges, the Affect transport of the individual fiber and ensures that no adhesion forces occur in the area of the surface, so that It is ensured that in the area of the opening roller absorption a proper transport of combed single fibers is given.

Ein solches Auflösewalzengehäuse ist nicht nur vorteilhaft, weil sehr funktionssicher während des Betriebes, sondern auch relativ kostengünstig in der Herstellung.Such an opening roller housing is not only advantageous because very reliable during operation, but also relatively inexpensive to manufacture.

Weitere Einzelheiten der Erfindung sind einem nachfolgend anhand der Zeichnungen erläuterten Ausführungsbeispiel entnehmbar.Further details of the invention are shown in an embodiment explained below with reference to the drawings.

Es zeigt:

Fig. 1
in Seitenansicht eine Offenend-Spinnvorrichtung mit einer Faserbandauflöseeinrichtung, deren Auflösewalzengehäuse nach dem erfindungsgemäßen Verfahren hergestellt ist,
Fig. 2
ein nach dem erfindungsgemäßen Verfahren hergestelltes Auflösewalzengehäuse, in Vorderansicht.
It shows:
Fig. 1
in side view, an open-end spinning device with a sliver disintegrating device whose opening roller housing is produced by the method according to the invention,
Fig. 2
an opening roller housing produced by the process according to the invention, in front view.

Die Fig. 1 zeigt in Seitenansicht eine insgesamt mit dem Bezugszeichen 1 gekennzeichnete Offenend-Spinnvorrichtung, an der das nach dem erfindungsgemäßen Verfahren hergestellte Auflösewalzengehäuse 17 zum Einsatz kommt.The Fig. 1 shows in side view a generally designated by the reference numeral 1 open-end spinning device to which the opening roller housing 17 produced by the process according to the invention is used.

Wie ersichtlich, verfügen derartige Offenend-Spinnvorrichtungen 1 jeweils über ein Rotorgehäuse 2, in dem ein Spinnrotor 3 mit hoher Drehzahl umläuft. Der Spinnrotor 3 ist dabei mit seinem Rotorschaft 4 im Zwickel einer Stützscheibenlagerung 5 abgestützt und wird durch einen maschinenlangen Tangentialriemen 6, der durch eine Andrückrolle 7 angestellt ist, beaufschlagt.As can be seen, such open-end spinning devices 1 each have a rotor housing 2, in which a spinning rotor 3 rotates at high speed. The spinning rotor 3 is supported with its rotor shaft 4 in the gusset of a support disk bearing 5 and is acted upon by a machine-long tangential belt 6, which is employed by a pressure roller 7.

Das an sich nach vorne hin offene Rotorgehäuse 2 ist während des Betriebes durch ein schwenkbar gelagertes Deckelelement 8, in das eine (nicht näher dargestellte) Kanalplatte mit einer Dichtung 9 eingearbeitet ist, verschlossen.
Das Rotorgehäuse 2 ist außerdem über eine entsprechende Unterdruckleitung 10 an eine Unterdruckquelle 11 angeschlossen, die den während des Spinnbetriebes im Rotorgehäuse 2 notwendigen Spinnunterdruck erzeugt.The rotor housing 2, which is open at the front, is in operation by a pivotably mounted cover element 8, in FIG the one (not shown) channel plate is incorporated with a seal 9, closed.
The rotor housing 2 is also connected via a corresponding vacuum line 10 to a vacuum source 11, which generates the necessary during the spinning operation in the rotor housing 2 spinning vacuum.

In das Deckelelement 8 ist ein vorzugsweise auswechselbarer Kanalplattenfortsatz, ein sogenannter Kanalplattenadapter 12, eingelassen, der die Fadenabzugsdüse 13 sowie den Mündungsbereich des Faserleitkanales 14 aufweist, wobei sich an die Fadenabzugsdüse 13 ein Fadenabzugsröhrchen 15 anschließt. Am Deckelelement 8, das um die Schwenkachse 16 begrenzt drehbar gelagert ist und rückseitig Lagerkonsolen 19, 20 zur Lagerung der Auflösewalze 21 beziehungsweise des Faserbandeinzugszylinders 22 aufweist, ist zum Beispiel über Schraubenbolzen 18 sowie entsprechende Passmittel ein Auflösewalzengehäuse 17 festgelegt.In the cover element 8, a preferably replaceable channel plate extension, a so-called channel plate adapter 12, embedded, which has the thread withdrawal nozzle 13 and the mouth region of the Faserleitkanales 14, wherein the Fadenabzugsdüse 13, a thread withdrawal tube 15 is connected. The lid member 8, which is rotatably mounted limited to the pivot axis 16 and rear bearing brackets 19, 20 for supporting the opening roller 21 and the sliver feed cylinder 22, for example, via bolt 18 and corresponding passport means an opening cylinder housing 17 is fixed.

Die Auflösewalze 21 wird im Bereich ihres Wirtels 23 durch einen umlaufenden, maschinenlangen Tangentialriemen 24 angetrieben, während der (nicht dargestellte) Antrieb des Faserbandeinzugszylinders 22 vorzugsweise über eine Schneckengetriebeanordnung erfolgt, die auf eine maschinenlange Antriebswelle 25 geschaltet ist.The opening roller 21 is driven in the region of its whorl 23 by a rotating, machine-long tangential belt 24, while the drive (not shown) of the sliver feed cylinder 22 preferably via a worm gear arrangement, which is connected to a machine-length drive shaft 25.

Das Auflösewalzengehäuse 17, das nachfolgend anhand der Figur 2 näher erläutert wird, ist während des Spinnprozesses durch einen Verschlussdeckel 26, der durch einen Riegel 27 gesichert ist, nach vorne verschlossen.The opening cylinder housing 17, which is described below with reference to FIG. 2 is explained in more detail during the spinning process by a closure lid 26 which is secured by a latch 27, closed at the front.

Unterhalb des Auflösewalzengehäuses 17 ist außerdem, wie angedeutet, eine Schmutzabtransporteinrichtung 30 angeordnet, über die die ausgeschiedenen Schmutzpartikel entsorgt werden.Below the opening roller housing 17 is also, as indicated, arranged a dirt removal device 30, through which the precipitated dirt particles are disposed of.

Wie insbesondere aus Figur 2 ersichtlich, verfügt das Auflösewalzengehäuse 17 über eine kreisrunde Auflösewalzenaufnahme 31, die an ihrer Vorderseite eine Doppelabstufung 32 aufweist.
In die rückwärtige Oberfläche 33 der Auflösewalzenaufnahme 31 ist eine zentrale Bohrung 34 eingearbeitet, die im Montagezustand vom Wirtel 23 der Auflösewalze 21 durchfasst wird.As in particular from FIG. 2 can be seen, the opening cylinder housing 17 has a circular opening roller receptacle 31, which has a double graduation 32 at its front.
In the rear surface 33 of the opening roller receptacle 31, a central bore 34 is incorporated, which is encompassed by the whorl 23 of the opening roller 21 in the assembled state.

Das Auflösewalzengehäuse 17 weist im Bereich der Auflösewalzenaufnahme 31 außerdem eine in Drehrichtung der Auflösewalze hinter dem Faserbandeinzugszylinder 22 angeordnete, relativ große, erste Öffnung 28 auf, durch die die aus dem Faserband ausgelösten Schmutzpartikel 29 ausgeschieden sowie die während des Spinnprozesses benötigte Spinnluft zugeführt wird. Das heißt, die kreisrunde Auflösewalzenaufnahme 31 ist Bereich der Oberfläche ihrer Umfangswandung 35 zwischen der Faserbandeinspeisestelle, die durch die Bohrung 36 für den Faserbandeinzugszylinder 22 erkennbar ist, und einer Prallwand 37 offen und bildet in diesem Bereich die so genannte Faserbandeintritts- und Schmutzaustrittsöffnung 28.
In die Oberfläche der Umfangswandung 35 der Auflösewalzenaufnahme 31 ist außerdem eine Bohrung 38 eingearbeitet, die der Aufnahme eines auswechselbar festlegbaren Faserleitkanals 14 dient und im Bereich der Umfangswandung 35 eine zweite Öffnung 39 bildet.The opening cylinder housing 17 also has a relatively large first opening 28 arranged in the direction of rotation of the opening roller behind the sliver feed cylinder 22, through which the dirt particles 29 released from the sliver are removed and the spinning air required during the spinning process is supplied. That is, the circular opening roller receptacle 31 is open to the surface of its peripheral wall 35 between the sliver feed point, which is visible through the bore 36 for the sliver feed cylinder 22, and a baffle 37 and forms in this area the so-called sliver inlet and dirt outlet opening 28th
In the surface of the peripheral wall 35 of the opening roller receptacle 31 also has a bore 38 is incorporated, which serves to receive a replaceable fixable Faserleitkanals 14 and 35 forms a second opening 39 in the region of the peripheral wall.

Wie ersichtlich, weist das Auflösewalzengehäuse 17 eine rechteckige vordere Seitenwand 43 und eine rechteckige hintere Seitenwand 44 auf, wobei die Seitenwände 43, 44 jeweils im Wesentlichen orthogonal zur Achse 42 der Auflösewalze 21 angeordnet sind.
Das Auflösewalzengehäuse 17 besitzt des Weiteren eine Lagerbohrung 40 für den Riegel 27 sowie Gewindebohrungen zur Befestigung des Auflösewalzengehäuses 17 am Deckelelement 8. Verfahren zum Herstellen des vorstehend beschriebenen Auflösewalzengehäuses:

  • Wie üblich, wird zunächst mittels eines entsprechenden Druckguss-Werkzeuges aus einem leichtmetallischen Werkstoff, beispielsweise einer Aluminiumlegierung, ein Auflösewalzengehäuse-Rohling hergestellt.
As can be seen, the opening roller housing 17 has a rectangular front side wall 43 and a rectangular rear side wall 44, wherein the side walls 43, 44 are each arranged substantially orthogonal to the axis 42 of the opening roller 21.
The opening roller housing 17 further has a bearing bore 40 for the bolt 27 and threaded holes for fastening the opening roller housing 17 on the cover element eighth Method for producing the opening roller housing described above:
  • As usual, an opening roller housing blank is first produced by means of a corresponding die-casting tool made of a light-metal material, for example an aluminum alloy.

Dieser Auflösewalzengehäuse-Rohling wird anschließend einer mechanischen Bearbeitung unterworfen, bei der, wie bekannt, alle notwendigen Baumaße herausgearbeitet werden.
Die mechanische Bearbeitung erfolgt dabei vorzugsweise durch sogenannte PKD-Bearbeitung, das heißt, die Schneidwerkzeuge, die zum Einsatz kommen, sind aus polykristallinem Diamant gefertigt. Eine solche PKD-Bearbeitung hat den Vorteil, dass, insbesondere bei größeren Stückzahlen, eine kostengünstige und stets sehr maßhaltige Bearbeitung von Auflösewalzengehäusen möglich ist.This opening roller housing blank is then subjected to a mechanical processing in which, as is known, all the necessary dimensions are worked out.
The mechanical processing is preferably carried out by so-called PCD machining, that is, the cutting tools that are used are made of polycrystalline diamond. Such a PCD machining has the advantage that, in particular for larger quantities, a cost-effective and always very dimensionally accurate machining of opening cylinder housings is possible.

Nach der mechanischen PKD-Bearbeitung weisen die bearbeiteten Oberflächen des Auflösewalzengehäuses, das heißt, insbesondere die Oberflächen der Auflösewalzenaufnahme und die Luftleitflächen an den Innenseiten der Vorder- und Hinterwandung des Auflösewalzengehäuses, allerdings sehr geringe Rautiefen auf, was in sich die Gefahr birgt, dass es während des Betriebes des Auflösewalzengehäuses an diesen Oberflächen zum Entstehen schädlicher Adhäsionskräfte und damit in diesem Bereich zu starken Schmutzablagerungen kommt.
Die Rautiefenwerte der Oberflächen der Auflösewalzenaufnahme betragen beispielsweise nach der PKD-Bearbeitung

  • Rmax = 0,84 µm,
  • Rz = 0,61 µm,
  • Ra = 0,22 µm und
  • Rt = 0,90 µm.
After mechanical machining of PCD, however, the machined surfaces of the opening roller housing, that is, in particular the surfaces of the opening roller receptacle and the air guide surfaces on the insides of the front and rear walls of the opening cylinder housing, have very small surface roughnesses, which entails the risk that it will During operation of the opening roller housing on these surfaces to the emergence of harmful adhesion forces and thus in this area comes to heavy dirt deposits.
The surface roughness values of the surfaces of the opening roller holder are, for example, after PCD machining
  • Rmax = 0.84 μm,
  • Rz = 0.61 μm,
  • Ra = 0.22 μm and
  • Rt = 0.90 μm.

Um diese sehr geringen Rautiefenwerte zu vergrößern, wurden die Auflösewalzengehäuse bislang nach der PKD-Bearbeitung gesandstrahlt und anschließend chemisch vernickelt sowie getempert.
Durch diese Vorgehensweise konnten die Rautiefenwerte der Oberflächen auf folgende Werte vergrößert werden:

  • Rmax = 8,05 µm,
  • Rz = 6,45 µm,
  • Ra = 1,04 µm und
  • Rt = 8,75 µm.
In order to increase these very low roughness depth values, the opening roller housings were previously sandblasted after the PCD processing and then chemically nickel-plated and tempered.
Through this procedure, the surface roughness values of the surfaces could be increased to the following values:
  • Rmax = 8.05 μm,
  • Rz = 6.45 μm,
  • Ra = 1.04 μm and
  • Rt = 8.75 μm.

Im Unterschied zur vorstehend beschriebenen Vorgehensweise erfolgt beim erfindungsgemäßen Verfahren nach der PKD-Bearbeitung sofort eine Endbehandlung der Auflösewalzengehäuse (17) durch das erfindungsgemäße Sandstrahlverfahren.
Das heißt, die Auflösewalzengehäuse (17) werden nach der PKD-Bearbeitung sofort einem Sandbestrahlverfahren mit einem speziellen Sandstrahlmedium unterworfen. Bei diesem Sandbestrahlverfahren kommen Sandstrahlmedien zum Einsatz, die aus kugelförmigen Einzelelementen bestehen, deren Durchmesser zwischen 1 µm und 10 µm liegt.
Das heißt, durch das Sandstrahlverfahren mit Keramikkugeln oder Stahlkugeln wird wenigstens eine der Rautiefen der verschmutzungsgefährdeten Oberflächen des Auflösewalzengehäuses (17) auf ein Mehrfaches der Rautiefe vor dem Sandstrahlen angehoben.
Als verschmutzungsgefährdete Oberflächen des
Auflösewalzengehäuses (17) sind dabei die Oberflächen (33, 35) der Auflösewalzenaufnahme (31), die Oberflächen der Luftführungsflächen (44, 45) sowie die Oberfläche der Prallfläche (37) anzusehen.In contrast to the procedure described above, in the method according to the invention after the PCD machining, a final treatment of the opening roller housing (17) by the sandblasting method according to the invention takes place immediately.
That is, the opening roller housings (17) are immediately subjected to a sandblasting process with a special sand blasting medium after the PCD machining. In this sand blasting process, sandblasting media are used, which consist of spherical individual elements whose diameter is between 1 .mu.m and 10 .mu.m.
That is, by the sandblasting method with ceramic balls or steel balls, at least one of the roughness depths of the surfaces of the opening cylinder housing (17) at risk of contamination is raised to a multiple of the roughness depth before sandblasting.
As polluting surfaces of the
Opening roller housing (17) are the surfaces (33, 35) of the opening roller (31), the surfaces of the air guide surfaces (44, 45) and the surface of the baffle surface (37) to look at.

Nach dem Sandbestrahlverfahren mit einem der vorstehend beschriebenen Sandstrahlmedien betragen die Rautiefe im Bereich der Oberflächen (33, 35, 44, 45, 37) beispielsweise:

  • Rmax = 12,06 µm,
  • Rz = 9,99 µm,
  • Ra = 1,46 µm und
  • Rt = 12,90 µm.
After the sandblasting process with one of the sandblasting media described above, the roughness depth in the area of the surfaces (33, 35, 44, 45, 37) is, for example:
  • Rmax = 12.06 μm,
  • Rz = 9.99 μm,
  • Ra = 1.46 μm and
  • Rt = 12.90 μm.

Durch diese relativ großen Rautiefen wird zuverlässig verhindert, dass es während des Spinnens aufgrund von Adhäsionskräften an den faserführenden Oberflächen des Auflösewalzengehäuses zu Ablagerungen kommen kann, was nicht nur optisch sehr unschön ist, sondern sich auch störend auf den Faserfluss auswirkt.This relatively large surface roughness reliably prevents deposits from being formed on the fiber-guiding surfaces of the opening roller housing during spinning due to adhesion forces, which is not only visually very unattractive, but also has a disruptive effect on the fiber flow.

Durch das Aufrauen der Oberfläche der verschmutzungsgefährdeten Bereiche des Auflösewalzengehäuses mit beispielsweise Keramikkugeln, wird nicht nur eine relativ große, jedoch gleichmäßige Rauheit der behandelten Oberfläche erzielt, sondern es erfolgt auch eine Mikroverdichtung der Oberfläche. Gleichzeitig wird aber zuverlässig verhindert, dass die Oberflächen während des Sandstrahlvorgangs so aufrissen werden, dass eine Beeinträchtigung des Einzelfasertransportes stattfindet.By roughening the surface of the polluting areas of the opening cylinder housing with, for example, ceramic balls, not only a relatively large, but uniform roughness of the treated surface is achieved, but there is also a micro-compression of the surface. At the same time, however, it is reliably prevented that the surfaces will be torn open during the sandblasting process in such a way that the single-fiber transport is impaired.

Des Weiteren wirkt sich eine solche Mikroverdichtung der Oberflächen auch sehr positiv auf die Standfestigkeit des Auflösewalzengehäuses aus.Furthermore, such a micro-compression of the surfaces also has a very positive effect on the stability of the opening roller housing.

Claims (5)

  1. A method of producing an opening roller housing (17) of an open-end winding device (1), which is made of a light metallic material and has a circular opening roller accommodation (31), in whose circumferential wall (35) openings (28, 39) are arranged, wherein a raw form of the opening roller housing (17) is first created using the die casting method and is then mechanically processed so that the opening roller accommodation (31) and the openings (28, 39) correspond to the specified dimensions,
    characterised in that,
    the opening roller housing (17) is sandblasted during final processing, in which a sandblasting medium is selected that has spherical individual elements with a diameter between 1 µm and 10 µm and at least micro-densifies the surface (33, 35) of the opening roller accommodation (31) and therefore contains roughness without the formation of edges that impair the transport of individual fibres and ensures the roughness so that, during operation of the opening roller housing (17), no adhesive forces occur in the area of the surface (33, 35), meaning that it is ensured that proper transport of combed individual fibres can take place within the opening roller accommodation (31).
  2. Method according to claim 1, characterised in that ceramic spheres are used as the sandblasting medium.
  3. Method according to claim 1, characterised in that steel spheres are used as the sandblasting medium.
  4. Method according to claim 1, characterised in that, in the area of the opening roller accommodation (31), arranged behind a fibre outlet opening (39), a tear-off edge at high risk of abrasion after the sandblasting is secured by a ceramic pin.
  5. Opening roller housing (17) of an open-end winding device (1), which is made of a light metallic material and has a circular opening roller accommodation (31), in whose circumferential wall (35) openings (28, 39) are arranged, characterised in that,
    at least the opening roller accommodation (31) has a micro-densified surface (33, 35) through sandblasting in final processing with a roughness, which has no edges that impair the transport of the individual fibres and ensures that no adhesive forces occur in the area of the surface (33, 35), meaning that it is ensured that proper transport of combed individual fibres can take place in the area of the opening roller accommodation (31).
EP11001848.8A 2010-03-12 2011-03-05 Method for producing a disintegrating roller housing of an open end spinning machine and disintegrating roller housing Active EP2365114B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010011234A DE102010011234A1 (en) 2010-03-12 2010-03-12 A method of manufacturing an opening roller housing of an open-end spinning apparatus and opening roller housing

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EP2365114A1 EP2365114A1 (en) 2011-09-14
EP2365114B1 true EP2365114B1 (en) 2018-04-25

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EP (1) EP2365114B1 (en)
CN (1) CN102191591B (en)
BR (1) BRPI1100954A2 (en)
DE (1) DE102010011234A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013003284A1 (en) 2013-02-26 2014-08-28 Saurer Germany Gmbh & Co. Kg Sliver opening device for an open-end spinning device
DE102014008758A1 (en) * 2014-06-12 2015-12-17 Saurer Germany Gmbh & Co. Kg Open-end spinning device
DE102018007069A1 (en) * 2018-09-07 2020-03-12 Saurer Spinning Solutions Gmbh & Co. Kg Opening roller housing for a opening device of an open-end rotor spinning device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS223629B1 (en) * 1981-11-20 1983-11-25 Miloslav Mares Facility for friction spinning with open end
DE3734544A1 (en) * 1987-10-13 1989-05-03 Schubert & Salzer Maschinen OPEN-END SPIDER AND METHOD FOR THE PRODUCTION THEREOF
DE4008884C2 (en) * 1990-03-20 2001-04-05 Schlafhorst & Co W Open=end spinning unit - has opening roller working against trough plate with thermochemical protection
DE9218361U1 (en) * 1992-11-13 1994-03-10 Rieter Ingolstadt Spinnereimaschinenbau Ag, 85055 Ingolstadt Device for feeding fibers onto the rotating inner wall of an open-end spinning rotor
DE19709213B4 (en) 1997-03-06 2005-10-06 Saurer Gmbh & Co. Kg Sliver opening device
DE19836066A1 (en) * 1998-08-10 2000-02-17 Schlafhorst & Co W Open-end spinning device
DE10237672A1 (en) * 2002-08-16 2004-02-26 Rieter Ingolstadt Spinnereimaschinenbau Ag Textile opening cylinder housing has an adapter located alongside foreign object discharge zone and covering opening cylinder outer margins
DE102007036927A1 (en) * 2007-08-04 2009-02-12 Oerlikon Textile Gmbh & Co. Kg Spinning agent of a textile machine

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* Cited by examiner, † Cited by third party
Title
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DE102010011234A1 (en) 2011-09-15
CN102191591A (en) 2011-09-21
EP2365114A1 (en) 2011-09-14
BRPI1100954A2 (en) 2012-08-07
CN102191591B (en) 2015-04-22

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