EP1215313A2 - Reinforcement for a suction channel in a fibre condensing device of a spinning machine - Google Patents

Reinforcement for a suction channel in a fibre condensing device of a spinning machine Download PDF

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Publication number
EP1215313A2
EP1215313A2 EP01123001A EP01123001A EP1215313A2 EP 1215313 A2 EP1215313 A2 EP 1215313A2 EP 01123001 A EP01123001 A EP 01123001A EP 01123001 A EP01123001 A EP 01123001A EP 1215313 A2 EP1215313 A2 EP 1215313A2
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EP
European Patent Office
Prior art keywords
reinforcement
base body
suction channel
sliding surface
suction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01123001A
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German (de)
French (fr)
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EP1215313A3 (en
Inventor
Hans Stahlecker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP1215313A2 publication Critical patent/EP1215313A2/en
Publication of EP1215313A3 publication Critical patent/EP1215313A3/en
Withdrawn legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides

Definitions

  • the invention relates to an interchangeable reinforcement for a suction channel Fiber bundling device of a spinning machine, with at least one for guiding one air-permeable transport element for a fiber structure suitable sliding surface, with at least one in the sliding surface, enclosed on all sides like a window Suction slot and with contact surfaces for attaching to corresponding counter surfaces Basic body of the suction channel.
  • a stretched fiber structure is immediately adjacent to the draft zone of a A spinning twist is given to the drafting system, then arises at the clamping line of the Output roller pair a so-called spinning triangle.
  • the spinning triangle contains edge fibers that are not properly tied into the twisted thread and therefore little or nothing Contribute to the strength of the spun thread.
  • One has therefore recently started to to assign a so-called compression zone to the draft zone of a drafting system is in turn bounded on the outlet side by a clamping point. Only then will the thread become the Spinning rotation granted.
  • the fibers are bundled or compressed in the compression zone, whereby the fiber structure is so narrow when leaving the last nip that the dreaded spinner triangle no longer arises.
  • the spun thread then becomes more even, firmer and less hairy.
  • the compression zones mentioned usually have a suction channel, with the help of which the compression zones each generate a suction air flow that compresses the Fiber association causes or supports.
  • Such suction channels are often with a interchangeable reinforcement.
  • a reinforcement for a suction channel of the type mentioned at the outset is provided by DE 199 22 861 A1 State of the art.
  • the known reinforcement extends only over the area of one of the Compression zone associated suction slot, which it surrounds on all sides like a window.
  • the Known reinforcement is placed on a base body in the area of the suction slot is in turn provided with at least one suction slit.
  • the suction slot of the suction channel thus extends both through the reinforcement and through the base body. Since the Base body usually consist of metal, into which the suction slots are milled, the basic bodies have to be deburred at each suction slot in a time-consuming manner. Moreover the individual reinforcements in corresponding recesses of the base body in Area of each suction slit to be inserted exactly.
  • the invention is based on the object, the reinforcement is less complex and less tolerant to design and to dispense with time-consuming deburring processes.
  • the object is achieved in that the reinforcement as a the base body to the suction channel complementary component is formed.
  • the basic body which is designed as an open basic profile, is therefore only closed by the reinforcement a closed suction channel, except of course the individual suction slots and an in Base body attached vacuum connection.
  • the existing body and reinforcement Suction channel preferably extends over several, for example eight, spinning stations or one Machine section. Because the reinforcement is no longer an insert in the surface of the base body must be inserted, but only with itself in the longitudinal direction of the suction channel corresponding contact surfaces on mating surfaces of the base body are unnecessary unnecessary tolerances that would make the product more expensive. Since the suction slots are only in the If the reinforcement is located, the base body can have one on its side facing the reinforcement have continuous longitudinal opening, so that any deburring on the usually a metal body can be omitted.
  • the reinforcement is advantageously designed as an injection-molded plastic part and thus as a so-called Suction slot bar designed.
  • the sliding surface of the reinforcement is so long that it is assigned to a drafting system Includes deflection guide.
  • Drafting units usually have a pair of output rollers, in whose output wedge gap projects into the suction channel with a deflection guide that is right has a small radius. Due to the small radius, the deflection guide is also wear-prone, so that it is an advantageous component of the reinforcement.
  • the transport element not only slides over the sliding surface of the reinforcement, but also over it some outer contours of the base body, but only on those outer contours where Experience has shown that practically no wear occurs. So that the operation of the revolving transport element is possible, is in a further embodiment of the invention provided that the sliding surface of the reinforcement at its circumferential ends into the Outer contour of the base body merges. So there is neither in the reinforcement nor in the Protrusions disrupting the circulation of the transport element.
  • the reinforcement 1 shown in FIGS. 1 to 3 for a suction channel 2 belongs to one Fiber bundling device 3 and is part of a spinning machine, preferably one Ring spinning machine.
  • This spinning machine has only one part in FIG. 1 for each spinning station Draw frame 4 shown, of which only one pair of output rollers 5 and one previous pair of straps 6.7 is shown.
  • the output roller pair 5 contains a continuous, in the machine longitudinal direction, Driven lower cylinder formed lower roller 8, one printing roller 9 per spinning station assigned.
  • the lower roller 8 and the pressure roller 9 together form one Exit clamping line 10, which ends the draft zone of the drafting device 4.
  • a fiber sliver or roving 11 is fed to the drafting device 4 in the transport direction A and warped in drafting device 4 in a known manner to the desired fineness.
  • the Output roller pair 5 of the drafting system 4 follows a compression zone 12 in which the stretched but still spinning twist-free fiber structure 13 can be bundled or compacted should.
  • the existing fiber bundling device 3 contains a transport element Air-permeable conveyor belt 14 which passes the fiber structure 13 through the compression zone 12 transported.
  • the conveyor belt 14 is advantageously made of a thin, fine-mesh fabric belt Plastic threads trained.
  • the invention also as Includes suction elements designed transport elements, such as those in DE 198 19 019 A1 are described.
  • the outlet end of the compression zone 12 is defined by a clamping point 15 which also serves as a swirl barrier, so that the fiber structure 13 in the compression zone 12 remains rotation-free.
  • the thread 16, which is in Delivery direction B is fed to a swirl element, not shown, for example an annular spindle and gets its spin.
  • the fiber bundling device 3 also contains the already mentioned suction channel 2, which consists of a profiled base body 17 and the aforementioned reinforcement 1 is formed.
  • the suction channel 2 preferably extends over a plurality of, for example, eight spinning positions and is over a vacuum connection 18 connected to a vacuum source, not shown, so that the suction channel 2 is under vacuum overall.
  • the outside of the suction channel 2 facing the conveyor belt 14 carries the one sliding over it Conveyor belt 14.
  • a clamping roller 20 is used to effect the required swirl stop at the clamping point 15 provided that drives the conveyor belt 14 and the fiber structure 13 to the conveyor belt 14 and at the same time the conveyor belt 14 with a certain pressure against the suction channel 2 suppressed.
  • the pinch roller 20 in turn receives its drive via a toothed belt 21 from the Printing roller 9 of the drafting device 4.
  • the reinforcement 1 is provided which is described in more detail below. It is designed to be lock-resistant, for example as an injection molded plastic part, but nevertheless a wear part that can be replaced from time to time.
  • the length of the reinforcement 1 corresponds to the length of the base body 17.
  • the latter is an above open profile, with a continuous upper opening 22.
  • the open profile of the base body 17 is supplemented by the reinforcement 1 to the all-round closed suction channel 2, except in the reinforcement 1 attached suction slots 19 and those in the base body 17 Vacuum connection 18.
  • the outside of the suction channel 2 that guides the conveyor belt 14 consists of a sliding surface 23 formed by the reinforcement 1, which contains the suction slots 19, and a smooth transition at the circumferential ends 24 and 25 of the reinforcement 1 Outer contour 26 of the base body 17.
  • the respective conveyor belt 14 leaves the Outer contour 26 of the base body 17 and is guided there by a clamping device 27.
  • the reinforcement 1 has contact surfaces 28, 29 with which it can be connected to corresponding counter surfaces of the Base body 17 is attached.
  • the reinforcement 1 is in its entire length Base body 17 clipped in and therefore easily replaceable.
  • the sliding surface 23 of the reinforcement 1 closes a deflection guide 30 provided with a narrow radius 1, which projects into the wedge gap of the pair of output rollers 5.

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

Abstract

The exchangeable reinforcement (1), for the suction channel of a condensing station for drawn sliver at a drawing unit, is a component which extends the base body (17 of the suction channel (2). The condensing stage, for drawn sliver, has a base body which extends over a number of spinning stations, and the length of the reinforcement matches the body length. The reinforcement is an injection molded plastics component, clipped into the base body. The sliding surface (23) for the drawn sliver has a deflection guide (30) at the end towards the drawing unit (4). The ends (24,25) of the sliding surface fit smoothly into the outer contour (26) of the base body.

Description

Die Erfindung betrifft eine austauschbare Armierung für einen Saugkanal einer Faserbündelungseinrichtung einer Spinnmaschine, mit wenigstens einer zum Führen eines luftdurchlässigen Transportelementes für einen Faserverband geeigneten Gleitfläche, mit wenigstens einem in der Gleitfläche angeordneten, allseitig fensterartig umschlossenen Saugschlitz sowie mit Anlageflächen zum Anfügen an entsprechende Gegenflächen eines Grundkörpers des Saugkanales.The invention relates to an interchangeable reinforcement for a suction channel Fiber bundling device of a spinning machine, with at least one for guiding one air-permeable transport element for a fiber structure suitable sliding surface, with at least one in the sliding surface, enclosed on all sides like a window Suction slot and with contact surfaces for attaching to corresponding counter surfaces Basic body of the suction channel.

Wenn einem verstreckten Faserverband in unmittelbarem Anschluss an die Verzugszone eines Streckwerks ein Spinndrall erteilt wird, dann entsteht an der Klemmlinie des Ausgangswalzenpaares ein so genanntes Spinndreieck. Dies rührt daher, dass der verstreckte Faserverband mit einer bestimmten Breite das Streckwerk verlässt und zu einem Faden relativ kleinen Durchmessers zusammengedreht wird. Das Spinndreieck enthält Randfasern, die nicht ordnungsgemäß in den verdrehten Faden eingebunden werden und somit wenig oder nichts zur Festigkeit des ersponnenen Fadens beitragen. Man ist daher in jüngerer Zeit dazu übergegangen, der Verzugszone eines Streckwerks eine so genannte Verdichtungszone nachzuordnen, die ihrerseits auslaufseitig von einer Klemmstelle begrenzt wird. Erst danach wird dem Faden die Spinndrehung erteilt. In der Verdichtungszone werden die Fasern gebündelt oder verdichtet, wodurch der Faserverband beim Verlassen der letzten Klemmstelle so schmal ist, dass das gefürchtete Spinndreieck nicht mehr entsteht. Der ersponnene Faden wird dann gleichmäßiger, fester und weniger haarig. If a stretched fiber structure is immediately adjacent to the draft zone of a A spinning twist is given to the drafting system, then arises at the clamping line of the Output roller pair a so-called spinning triangle. This is because the stretched Fiber structure with a certain width leaves the drafting system and is relative to a thread small diameter is twisted together. The spinning triangle contains edge fibers that are not properly tied into the twisted thread and therefore little or nothing Contribute to the strength of the spun thread. One has therefore recently started to to assign a so-called compression zone to the draft zone of a drafting system is in turn bounded on the outlet side by a clamping point. Only then will the thread become the Spinning rotation granted. The fibers are bundled or compressed in the compression zone, whereby the fiber structure is so narrow when leaving the last nip that the dreaded spinner triangle no longer arises. The spun thread then becomes more even, firmer and less hairy.

Die genannten Verdichtungszonen besitzen üblicherweise einen Saugkanal, mit dessen Hilfe in den Verdichtungszonen jeweils ein Saugluftstrom erzeugt wird, der das Verdichten des Faserverbandes bewirkt oder unterstützt. Derartige Saugkanäle sind vielfach mit einer austauschbaren Armierung versehen.The compression zones mentioned usually have a suction channel, with the help of which the compression zones each generate a suction air flow that compresses the Fiber association causes or supports. Such suction channels are often with a interchangeable reinforcement.

Eine Armierung für einen Saugkanal der eingangs genannten Art ist durch die DE 199 22 861 A1 Stand der Technik. Die bekannte Armierung erstreckt sich lediglich über den Bereich eines der Verdichtungszone zugehörigen Saugschlitzes, den sie allseitig fensterartig umschließt. Die bekannte Armierung ist im Bereich des Saugschlitzes auf einen Grundkörper aufgesetzt, der seinerseits mit wenigstens einem Saugschlitz versehen ist. Der Saugschlitz des Saugkanales erstreckt sich somit sowohl durch die Armierung als auch durch den Grundkörper. Da die Grundkörper üblicherweise aus Metall bestehen, in welche die Saugschlitze eingefräst werden, müssen die Grundkörper an jedem Saugschlitz zeitaufwendig entgratet werden. Außerdem müssen die einzelnen Armierungen in entsprechenden Ausnehmungen des Grundkörpers im Bereich jedes Saugschlitzes genau passend eingefügt werden.A reinforcement for a suction channel of the type mentioned at the outset is provided by DE 199 22 861 A1 State of the art. The known reinforcement extends only over the area of one of the Compression zone associated suction slot, which it surrounds on all sides like a window. The Known reinforcement is placed on a base body in the area of the suction slot is in turn provided with at least one suction slit. The suction slot of the suction channel thus extends both through the reinforcement and through the base body. Since the Base body usually consist of metal, into which the suction slots are milled, the basic bodies have to be deburred at each suction slot in a time-consuming manner. Moreover the individual reinforcements in corresponding recesses of the base body in Area of each suction slit to be inserted exactly.

Der Erfindung liegt die Aufgabe zu Grunde, die Armierung weniger aufwendig und toleranzärmer zu gestalten und auf zeitaufwendige Entgratungsvorgänge zu verzichten.The invention is based on the object, the reinforcement is less complex and less tolerant to design and to dispense with time-consuming deburring processes.

Die Aufgabe wird dadurch gelöst, dass die Armierung als ein den Grundkörper zum Saugkanal ergänzendes Bauteil ausgebildet ist.The object is achieved in that the reinforcement as a the base body to the suction channel complementary component is formed.

Der als offenes Grundprofil ausgebildete Grundkörper wird somit erst durch die Armierung zu einem geschlossenen Saugkanal, ausgenommen natürlich die einzelnen Saugschlitze und ein im Grundkörper angebrachter Unterdruckanschluss. Der aus Grundkörper und Armierung bestehende Saugkanal erstreckt sich vorzugsweise über mehrere, beispielsweise acht Spinnstellen oder eine Maschinensektion. Da die Armierung nicht mehr in die Oberfläche des Grundkörpers als Insert eingefügt werden muss, sondern nur noch mit sich in Längsrichtung des Saugkanals entsprechenden Anlageflächen an Gegenflächen des Grundkörpers anliegt, erübrigen sich unnötige Toleranzen, die das Produkt verteuern würden. Da sich die Saugschlitze nur noch in der Armierung befinden, kann der Grundkörper auf seiner der Armierung zugewandten Seite eine durchgehende Längsöffnung aufweisen, so dass jegliches Entgraten an dem üblicherweise aus einem Metall hergestellten Grundkörper entfallen kann. The basic body, which is designed as an open basic profile, is therefore only closed by the reinforcement a closed suction channel, except of course the individual suction slots and an in Base body attached vacuum connection. The existing body and reinforcement Suction channel preferably extends over several, for example eight, spinning stations or one Machine section. Because the reinforcement is no longer an insert in the surface of the base body must be inserted, but only with itself in the longitudinal direction of the suction channel corresponding contact surfaces on mating surfaces of the base body are unnecessary unnecessary tolerances that would make the product more expensive. Since the suction slots are only in the If the reinforcement is located, the base body can have one on its side facing the reinforcement have continuous longitudinal opening, so that any deburring on the usually a metal body can be omitted.

Vorteilhaft ist die Armierung als gespritzes Kunststoffteil ausgebildet und somit als so genannte Saugschlitzleiste gestaltet. Es gibt heute sehr glatte, für Gleitflächen von Transportbändern geeignete Kunststoffe, die darüber hinaus recht verschleißfest sind. Dennoch kann die Armierung ein Verschleißteil sein, welches bei einer gewissen Abnutzung ausgetauscht wird, während der Grundkörper des Saugkanals beibehalten werden kann. Damit ein schnelles Auswechseln der Armierung möglich ist, sind die Anlageflächen und die entsprechenden Gegenflächen so gestaltet, dass die Armierung leicht in den Grundkörper einklipsbar ist.The reinforcement is advantageously designed as an injection-molded plastic part and thus as a so-called Suction slot bar designed. Today there are very smooth ones for sliding surfaces of conveyor belts suitable plastics that are also quite wear-resistant. Nevertheless, the reinforcement be a wearing part, which is replaced with a certain amount of wear during the Main body of the suction channel can be maintained. So that a quick replacement of the Reinforcement is possible, the contact surfaces and the corresponding counter surfaces are designed that the reinforcement can be easily clipped into the base body.

Die Gleitfläche der Armierung ist so lang, dass sie eine einem Streckwerk zugeordnete Umlenkführung einschließt. Streckwerke besitzen üblicherweise ein Ausgangswalzenpaar, in dessen Ausgangskeilspalt der Saugkanal mit einer Umlenkführung hineinragt, die einen recht kleinen Radius aufweist. Auf Grund des kleinen Radius ist die Umlenkführung ebenfalls verschleißgefährdet, so dass sie vorteilhaft Bestandteil der Armierung ist.The sliding surface of the reinforcement is so long that it is assigned to a drafting system Includes deflection guide. Drafting units usually have a pair of output rollers, in whose output wedge gap projects into the suction channel with a deflection guide that is right has a small radius. Due to the small radius, the deflection guide is also wear-prone, so that it is an advantageous component of the reinforcement.

Das Transportelement gleitet nicht nur über die Gleitfläche der Armierung, sondern auch über einige Außenkonturen des Grundkörpers, dort allerdings nur an solchen Außenkonturen, an denen erfahrungsgemäß praktisch kein Verschleiß eintritt. Damit ein einwandfreier Betrieb des umlaufenden Transportelementes möglich ist, ist in weiterer Ausgestaltung der Erfindung vorgesehen, dass die Gleitfläche der Armierung an ihren umfangsseitigen Enden stoßfrei in die Außenkontur des Grundkörpers übergeht. Es gibt somit weder in der Armierung noch im Grundkörper den Umlauf des Transportelementes störende Vorsprünge.The transport element not only slides over the sliding surface of the reinforcement, but also over it some outer contours of the base body, but only on those outer contours where Experience has shown that practically no wear occurs. So that the operation of the revolving transport element is possible, is in a further embodiment of the invention provided that the sliding surface of the reinforcement at its circumferential ends into the Outer contour of the base body merges. So there is neither in the reinforcement nor in the Protrusions disrupting the circulation of the transport element.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels.Further advantages and features of the invention result from the following description of an embodiment.

Es zeigen:

  • Figur 1 eine teilweise geschnittene schematische Seitenansicht durch eine Faserbündelungseinrichtung einer Spinnmaschine, mit einer Querschnittdarstellung des Saugkanals, der die erfindungsgemäße Armierung aufweist,
  • Figur 2 eine Ansicht in Richtung des Pfeiles II der Figur 1 auf den Saugkanal, wobei an einer einzelnen Spinnstelle ein umlaufendes, den Faserverband führendes Transportelement in Form eines Transportbandes ergänzt wurde,
  • Figur 3 einen Schnitt längs der Schnittfläche III-III der Figur 1 durch den Saugkanal.
    • Show it:
  • FIG. 1 shows a partially sectioned schematic side view through a fiber bundling device of a spinning machine, with a cross-sectional view of the suction channel, which has the reinforcement according to the invention,
  • FIG. 2 shows a view in the direction of arrow II of FIG. 1 of the suction channel, a circumferential transport element guiding the fiber structure in the form of a conveyor belt being supplemented at a single spinning position,
  • 3 shows a section along the section surface III-III of Figure 1 through the suction channel.

    • Die in den Figuren 1 bis 3 dargestellte Armierung 1 für einen Saugkanal 2 gehört zu einer Faserbündelungseinrichtung 3 und ist Bestandteil einer Spinnmaschine, vorzugsweise einer Ringspinnmaschine. Diese Spinnmaschine besitzt pro Spinnstelle ein nur teilweise in Figur 1 dargestelltes Streckwerk 4, von dem lediglich ein Ausgangswalzenpaar 5 sowie ein vorangehendes Riemchenpaar 6,7 gezeigt ist.The reinforcement 1 shown in FIGS. 1 to 3 for a suction channel 2 belongs to one Fiber bundling device 3 and is part of a spinning machine, preferably one Ring spinning machine. This spinning machine has only one part in FIG. 1 for each spinning station Draw frame 4 shown, of which only one pair of output rollers 5 and one previous pair of straps 6.7 is shown.

    Das Ausgangswalzenpaar 5 enthält eine als in Maschinenlängsrichtung durchlaufender, angetriebener Unterzylinder ausgebildetete Unterwalze 8, der pro Spinnstelle eine Druckwalze 9 zugeordnet ist. Die Unterwalze 8 und die Druckwalze 9 bilden miteinander eine Ausgangsklemmlinie 10, welche die Verzugszone des Streckwerks 4 beendet.The output roller pair 5 contains a continuous, in the machine longitudinal direction, Driven lower cylinder formed lower roller 8, one printing roller 9 per spinning station assigned. The lower roller 8 and the pressure roller 9 together form one Exit clamping line 10, which ends the draft zone of the drafting device 4.

    Dem Streckwerk 4 wird in Transportrichtung A ein Faserband oder ein Vorgarn 11 zugeführt und im Streckwerk 4 in bekannter Weise bis zur gewünschten Feinheit verzogen. Dem Ausgangswalzenpaar 5 des Streckwerks 4 folgt eine Verdichtungszone 12, in welcher der verstreckte, jedoch noch spinndrehungsfreie Faserverband 13 gebündelt oder verdichtet werden soll. Die hierfür vorhandene Faserbündelungseinrichtung 3 enthält als Transportelement ein luftdurchlässiges Tranportband 14, das den Faserverband 13 durch die Verdichtungszone 12 transportiert. Das Transportband 14 ist vorteilhaft als dünnes, feinmaschiges Gewebeband aus Kunststofffäden ausgebildet. Es sei aber ausdrücklich vermerkt, dass die Erfindung auch als Saugwalzen ausgebildete Transportelemente einschließt, wie sie beispielsweise in der DE 198 19 019 A1 beschrieben sind.A fiber sliver or roving 11 is fed to the drafting device 4 in the transport direction A and warped in drafting device 4 in a known manner to the desired fineness. the Output roller pair 5 of the drafting system 4 follows a compression zone 12 in which the stretched but still spinning twist-free fiber structure 13 can be bundled or compacted should. The existing fiber bundling device 3 contains a transport element Air-permeable conveyor belt 14 which passes the fiber structure 13 through the compression zone 12 transported. The conveyor belt 14 is advantageously made of a thin, fine-mesh fabric belt Plastic threads trained. However, it should be expressly noted that the invention also as Includes suction elements designed transport elements, such as those in DE 198 19 019 A1 are described.

    Das auslaufseitige Ende der Verdichtungszone 12 ist durch eine Klemmstelle 15 definiert, die zugleich als Drallsperre dient, so dass der Faserverband 13 in der Verdichtungszone 12 drehungsfrei bleibt. Im Anschluss an die Klemmstelle 15 entsteht dann der Faden 16, der in Lieferrichtung B einem nicht dargestellten Drallorgan, beispielsweise einer Ringspindel, zugeführt wird und dabei seine Spinndrehung erhält.The outlet end of the compression zone 12 is defined by a clamping point 15 which also serves as a swirl barrier, so that the fiber structure 13 in the compression zone 12 remains rotation-free. The thread 16, which is in Delivery direction B is fed to a swirl element, not shown, for example an annular spindle and gets its spin.

    Die Faserbündelungseinrichtung 3 enthält ferner den bereits erwähnten Saugkanal 2, der aus einem profilierten Grundkörper 17 und der genannten Armierung 1 gebildet ist. Der Saugkanal 2 erstreckt sich bevorzugt über eine Mehrzahl von beispielsweise acht Spinnstellen und ist über einen Unterdruckanschluss 18 an eine nicht dargestellte Unterdruckquelle angeschlossen, so dass der Saugkanal 2 bei Betrieb insgesamt unter Unterdruck steht. The fiber bundling device 3 also contains the already mentioned suction channel 2, which consists of a profiled base body 17 and the aforementioned reinforcement 1 is formed. The suction channel 2 preferably extends over a plurality of, for example, eight spinning positions and is over a vacuum connection 18 connected to a vacuum source, not shown, so that the suction channel 2 is under vacuum overall.

    Die dem Transportband 14 zugewandte Außenseite des Saugkanals 2 führt das darüber gleitende Transporband 14.The outside of the suction channel 2 facing the conveyor belt 14 carries the one sliding over it Conveyor belt 14.

    In der Armierung 1 ist pro Spinnstelle ein sich im Wesentlichen in Transportrichtung A erstreckender, allseitig fensterartig umschlossener Saugschlitz 19 angeordnet, der vom Transportband 14 überdeckt ist und der sich etwa bis zur Klemmstelle 15 erstreckt. Wie aus Figur 2 ersichtlich, sind die Saugschlitze 19 gegenüber der Bewegungsrichtung des Transportbandes 14 leicht schräg angeordnet.In the reinforcement 1 there is essentially one in the transport direction A for each spinning position extending, all-round window-like suction slot 19 arranged from the Conveyor belt 14 is covered and extends approximately to the clamping point 15. As from a figure 2, the suction slots 19 are opposite the direction of movement of the conveyor belt 14 slightly slanted.

    Zum Bewirken des erforderlichen Drallstopps an der Klemmstelle 15 ist eine Klemmwalze 20 vorgesehen, die das Transportband 14 antreibt und den Faserverband 13 an das Transportband 14 sowie zugleich das Transportband 14 mit einem gewissen Andruck gegen den Saugkanal 2 drückt. Die Klemmwalze 20 ihrerseits erhält ihren Antrieb über einen Zahnriemen 21 von der Druckwalze 9 des Streckwerks 4.A clamping roller 20 is used to effect the required swirl stop at the clamping point 15 provided that drives the conveyor belt 14 and the fiber structure 13 to the conveyor belt 14 and at the same time the conveyor belt 14 with a certain pressure against the suction channel 2 suppressed. The pinch roller 20 in turn receives its drive via a toothed belt 21 from the Printing roller 9 of the drafting device 4.

    Durch den Andruck der Klemmwalze 20 gegen den Saugkanal 2 entsteht insbesondere im Bereich der Klemmstelle 15 sowie an gewissen Umlenkstellen des Transportbandes 14 ein gewisser Verschleiß, dem entgegengewirkt werden soll. Aus diesem Grund ist die Armierung 1 vorgesehen, die nachfolgend genauer beschrieben wird. Sie ist zwar verschließfest ausgebildet, beispielsweise als gespritztes Kunststoffteil, jedoch dennoch ein von Zeit zu Zeit austauschbares Verschleißteil.The pressure of the pinch roller 20 against the suction channel 2 results in particular in the area the clamping point 15 and at certain deflection points of the conveyor belt 14 a certain Wear that should be counteracted. For this reason, the reinforcement 1 is provided which is described in more detail below. It is designed to be lock-resistant, for example as an injection molded plastic part, but nevertheless a wear part that can be replaced from time to time.

    Die Länge der Armierung 1 entspricht der Länge des Grundkörpers 17. Letzterer ist ein oben offenes Profil, mit durchgehender oberer Öffnung 22. Das offene Profil des Grundkörpers 17 wird durch die Armierung 1 zu dem rundum geschlossenen Saugkanal 2 ergänzt, ausgenommen die in der Armierung 1 angebrachten Saugschlitze 19 und den im Grundkörper 17 vorhandenen Unterdruckanschluss 18. Die das Transportband 14 führende Außenseite des Saugkanales 2 besteht aus einer von der Armierung 1 gebildeten Gleitfläche 23, die die Saugschlitze 19 enthält, sowie einer an den umfangsseitigen Enden 24 und 25 der Armierung 1 stoßfrei übergehenden Außenkontur 26 des Grundkörpers 17.The length of the reinforcement 1 corresponds to the length of the base body 17. The latter is an above open profile, with a continuous upper opening 22. The open profile of the base body 17 is supplemented by the reinforcement 1 to the all-round closed suction channel 2, except in the reinforcement 1 attached suction slots 19 and those in the base body 17 Vacuum connection 18. The outside of the suction channel 2 that guides the conveyor belt 14 consists of a sliding surface 23 formed by the reinforcement 1, which contains the suction slots 19, and a smooth transition at the circumferential ends 24 and 25 of the reinforcement 1 Outer contour 26 of the base body 17.

    Auf der dem Saugschlitz 19 abgewandten Seite verlässt das jeweilige Transportband 14 die Außenkontur 26 des Grundkörpers 17 und ist dort durch eine Spanneinrichtung 27 geführt. On the side facing away from the suction slot 19, the respective conveyor belt 14 leaves the Outer contour 26 of the base body 17 and is guided there by a clamping device 27.

    Die Armierung 1 besitzt Anlageflächen 28,29, mit denen sie an entsprechende Gegenflächen des Grundkörpers 17 angefügt ist. Dabei ist die Armierung 1 über ihre gesamte Länge in den Grundkörper 17 eingeklipst und dadurch leicht auswechselbar.The reinforcement 1 has contact surfaces 28, 29 with which it can be connected to corresponding counter surfaces of the Base body 17 is attached. The reinforcement 1 is in its entire length Base body 17 clipped in and therefore easily replaceable.

    Die Gleitfläche 23 der Armierung 1 schließt eine mit engem Radius versehene Umlenkführung 30 1, die in den Keilspalt des Ausgangswalzenpaares 5 ragt.The sliding surface 23 of the reinforcement 1 closes a deflection guide 30 provided with a narrow radius 1, which projects into the wedge gap of the pair of output rollers 5.

    Wegen der durchgehenden Öffnung 22 des Grundkörpers 17 entfallen am metallenen Grundkörper 17 jegliche Entgratungsarbeiten an irgendwelchen, hier nicht vorhandenen Saugschlitzen. Da die Armierung 1 als gespritztes Kunststoffteil hergestellt ist, ist dieses sofort gebrauchsfertig. Da sowohl die Armierung 1 als auch der Grundkörper 17 die gleiche Länge haben, braucht die Armierung 1 auch nicht in eine allseits umschlossene Aussparung des Grundkörpers 17 mit engen Toleranzflächen eingepasst zu werden.Because of the continuous opening 22 of the base body 17, there is no need for the metal base body 17 Any deburring work on any suction slots that are not available here. Since the Armoring 1 is made as an injection-molded plastic part, this is immediately ready for use. There Both the reinforcement 1 and the base body 17 have the same length Reinforcement 1 also not in a recess of the base body 17, which is enclosed on all sides, with narrow Tolerance areas to be fitted.

    Es sei abschließend erwähnt, dass der Saugkanal 2 an seinen beiden stirnseitigen Enden mit Verschlüssen 31 versehen ist, siehe Figur 2. An diesen Verschlüssen 31 befinden sich Aufnahmen 32 zum Haltern des Saugkanales 2 in der Spinnmaschine, beispielsweise an Streckwerksstanzen.It should finally be mentioned that the suction channel 2 with at its two ends Closures 31 is provided, see Figure 2. There are recordings on these closures 31 32 for holding the suction channel 2 in the spinning machine, for example on drafting machine dies.

    Claims (6)

    Austauschbare Armierung für einen Saugkanal einer Faserbündelungseinrichtung einer Spinnmaschine, mit wenigstens einer zum Führen eines luftdurchlässigen Transportelementes für einen Faserverband geeigneten Gleitfläche, mit wenigstens einem in der Gleitfläche angeordneten, allseitig fensterartig umschlossenen Saugschlitz sowie mit Anlageflächen zum Anfügen an entsprechende Gegenflächen eines Grundkörpers des Saugkanales, dadurch gekennzeichnet, dass die Armierung (1) als ein den Grundkörper (17) zum Saugkanal (2) ergänzendes Bauteil ausgebildet ist.Interchangeable reinforcement for a suction channel of a fiber bundling device of a spinning machine, with at least one sliding surface suitable for guiding an air-permeable transport element for a fiber assembly, with at least one suction slot arranged in the sliding surface and enclosed on all sides in a window-like manner, and with contact surfaces for attachment to corresponding counter surfaces of a base body of the suction channel, thereby characterized in that the reinforcement (1) is designed as a component which complements the base body (17) to the suction channel (2). Armierung nach Anspruch 1, dadurch gekennzeichnet, dass sich der Grundkörper (17) über mehrere Spinnstellen ertreckt und dass die Länge der Armierung (1) der Länge des Grundkörpers (17) entspricht.Reinforcement according to claim 1, characterized in that the base body (17) extends over several spinning positions and that the length of the reinforcement (1) corresponds to the length of the base body (17). Armierung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Armierung (1) als gespritztes Kunststoffteil ausgebildet ist.Reinforcement according to claim 1 or 2, characterized in that the reinforcement (1) is designed as an injection-molded plastic part. Armierung nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass die Armierung (1) in den Grundkörper (17) einklipsbar ist.Reinforcement according to claims 1 to 3, characterized in that the reinforcement (1) can be clipped into the base body (17). Armierung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Gleitfläche (23) eine einem Streckwerk (4) zugeordnete Umlenkführung (30) einschließt.Reinforcement according to one of claims 1 to 4, characterized in that the sliding surface (23) includes a deflection guide (30) associated with a drafting system (4). Armierung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Gleitfläche (23) an ihren umfangsseitigen Enden (24,25) stoßfrei in die Außenkontur (26) des Grundkörpers (17) übergeht.Reinforcement according to one of claims 1 to 5, characterized in that the sliding surface (23) at its peripheral ends (24, 25) merges smoothly into the outer contour (26) of the base body (17).
    EP01123001A 2000-12-13 2001-09-26 Reinforcement for a suction channel in a fibre condensing device of a spinning machine Withdrawn EP1215313A3 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE2000163727 DE10063727A1 (en) 2000-12-13 2000-12-13 Reinforcement for a suction channel of a fiber bundling device of a spinning machine
    DE10063727 2000-12-13

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    Publication Number Publication Date
    EP1215313A2 true EP1215313A2 (en) 2002-06-19
    EP1215313A3 EP1215313A3 (en) 2003-01-29

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    EP01123001A Withdrawn EP1215313A3 (en) 2000-12-13 2001-09-26 Reinforcement for a suction channel in a fibre condensing device of a spinning machine

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    JP (1) JP2002180336A (en)
    DE (1) DE10063727A1 (en)

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2004015177A1 (en) * 2002-07-30 2004-02-19 Maschinenfabrik Rieter Ag Exchangeable attachment for a fibre-bundling device on a spinning machine
    WO2004015178A1 (en) * 2002-07-30 2004-02-19 Maschinenfabrik Rieter Ag Suction device for fibre-bundling devices on a spinning machine
    CH707249A1 (en) * 2012-11-30 2014-05-30 Rieter Ag Maschf Suction device for compacting device for fibrous material of stretching machine of spinning machine, has first housing unit, which has arc-shaped external wall provided with slot-shaped opening
    CN104695069A (en) * 2013-12-03 2015-06-10 里特机械公司 Component and spinning machine

    Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19838762A1 (en) * 1998-08-26 2000-03-02 Stahlecker Fritz Spinning machine has a suction unit for the spinning stations with its own fan and a hollow profile with suction slits for the slivers to condense the drawn slivers without pressure loss
    DE19922861A1 (en) * 1999-05-19 2000-11-23 Stahlecker Fritz System to condense a drawn sliver maintains a clamping action on a significant portion of the sliver fibers at the end of the drawing unit during the condensing action to prevent clogging the transport belt
    DE19955525A1 (en) * 1999-11-18 2001-05-23 Fritz Stahlecker Sliver compaction arrangement for spinning machine drafting system includes pressurized air supply to blow outwards through perforated apron

    Patent Citations (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19838762A1 (en) * 1998-08-26 2000-03-02 Stahlecker Fritz Spinning machine has a suction unit for the spinning stations with its own fan and a hollow profile with suction slits for the slivers to condense the drawn slivers without pressure loss
    DE19922861A1 (en) * 1999-05-19 2000-11-23 Stahlecker Fritz System to condense a drawn sliver maintains a clamping action on a significant portion of the sliver fibers at the end of the drawing unit during the condensing action to prevent clogging the transport belt
    DE19955525A1 (en) * 1999-11-18 2001-05-23 Fritz Stahlecker Sliver compaction arrangement for spinning machine drafting system includes pressurized air supply to blow outwards through perforated apron

    Cited By (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2004015177A1 (en) * 2002-07-30 2004-02-19 Maschinenfabrik Rieter Ag Exchangeable attachment for a fibre-bundling device on a spinning machine
    WO2004015178A1 (en) * 2002-07-30 2004-02-19 Maschinenfabrik Rieter Ag Suction device for fibre-bundling devices on a spinning machine
    CH707249A1 (en) * 2012-11-30 2014-05-30 Rieter Ag Maschf Suction device for compacting device for fibrous material of stretching machine of spinning machine, has first housing unit, which has arc-shaped external wall provided with slot-shaped opening
    CN104695069A (en) * 2013-12-03 2015-06-10 里特机械公司 Component and spinning machine

    Also Published As

    Publication number Publication date
    JP2002180336A (en) 2002-06-26
    EP1215313A3 (en) 2003-01-29
    DE10063727A1 (en) 2002-06-20

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