EP0070377A2 - Broken thread suction device - Google Patents

Broken thread suction device Download PDF

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Publication number
EP0070377A2
EP0070377A2 EP82104694A EP82104694A EP0070377A2 EP 0070377 A2 EP0070377 A2 EP 0070377A2 EP 82104694 A EP82104694 A EP 82104694A EP 82104694 A EP82104694 A EP 82104694A EP 0070377 A2 EP0070377 A2 EP 0070377A2
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EP
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Prior art keywords
channel
suction
sec
air
air stream
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Granted
Application number
EP82104694A
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German (de)
French (fr)
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EP0070377B1 (en
EP0070377A3 (en
Inventor
Juerg Bischofberger
Herbert Stalder
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Priority to AT82104694T priority Critical patent/ATE22123T1/en
Publication of EP0070377A2 publication Critical patent/EP0070377A2/en
Publication of EP0070377A3 publication Critical patent/EP0070377A3/en
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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
    • D01H5/60—Arrangements maintaining drafting elements free of fibre accumulations
    • D01H5/66—Suction devices exclusively
    • D01H5/68—Suction end-catchers

Definitions

  • the invention relates to a method and a device for suctioning yarn breakage, in particular on double-sided spinning machines, with a suction channel extending over the machine length and provided with suction nozzles.
  • the channel is located in an area below the drafting systems and ends at the end in a suction chamber.
  • the known ring spinning machines generally have a suction channel for both ring spinning sides in the area below the drafting units. In the case of long machines, this inevitably results in long suction channels with a correspondingly high pressure loss, ie with a correspondingly lower negative pressure in the initial region of the suction channel and a suction action which is too short as a result.
  • high negative pressures In order to nevertheless suck in essentially the same amount of air with each suction nozzle, on the one hand high negative pressures must be generated in the end area, which on the other hand must be compensated for by such cross-sectional constrictions in the suction nozzles, so that there is a risk of winding on the lowest drafting rollers.
  • Wrap Driving occurs when the thread material released by the drafting device cannot be sucked off properly due to the air speed being too small or the cross-section of the suction nozzle being too small.
  • a double-sided spinning machine is known from German specification No. 12 65 017, in which a channel extending over the entire length of the machine is provided on each machine side.
  • a filter-fan unit is arranged in the middle of the machine length per channel.
  • the unit is arranged above a bobbin creel belonging to the ring spinning machine.
  • Each unit is connected to the corresponding suction channel by a duct.
  • the invention is therefore based on the object of achieving a uniform suction effect even on long machines without significantly increasing the machine height, while maintaining a favorable average air speed and thus low energy consumption.
  • the invention achieves the object procedurally in that a second air stream guided in a parallel channel is formed parallel to the air stream mentioned, which is branched off from the first air stream at a point at which the first air stream has an air velocity of a maximum of approx. 18 m / sec. has reached.
  • the object is achieved in that a second channel is provided parallel to the suction channel, and in that at least one essentially vertical connecting channel is provided between the suction channel and the second channel.
  • a suction channel 2 is supported by means of two carriers 3 on a part of the ring spinning machine, referred to as the lower part 4 for the sake of simplicity.
  • Suction nozzles 5 are connected to the suction channel 2 and are each guided so close to the thread path (not shown) at the outlet of a drafting system 6 that the fiber material delivered by the drafting system 6 is suctioned out when the thread breaks. In addition, the nozzles suck off dust and flying fibers during the spinning process.
  • a second channel 8 is provided above a coil plug-in gate 7 and is connected to the suction channel 2 by means of vertical connecting channels 9.
  • FIG 2 it is shown schematically that the channels 2 and 8 open into a suction chamber 10 in which, e.g. a drum filter 11 is provided, which in turn is connected to a suction fan (not shown).
  • a so-called false air opening 12 is provided at the beginning of the suction channel 2.
  • the opening 12 and the negative pressure provided in the suction channel 2 are matched to one another in such a way that in a first part 13 of the suction channel 2 adjoining the opening 12, the air speed at the beginning is 4-5 m / sec. achieved so that it can safely transport a fiber and thread material sucked in by the first nozzle 5.1.
  • the cross-sectional area of the second duct 8 and the connecting ducts 9 are selected such that, as shown in dash-dotted lines in FIG. 4, an average air velocity V A of approximately 8.5 m / sec. is achieved.
  • the sawtooth-shaped speed profile V arises, on the one hand, from the branching of air into the connecting channels 9 and, on the other hand, from the air supply to the nozzles 5.
  • the cross section can be enlarged as a variant per stage, ie from connection channel to connection channel in proportion to the increasing air volume, so that the air speed curve becomes linear, ie corresponds to V A V A.
  • the number of nozzles shown in Figure 2 is a pure one schematic representation.
  • the abscissa labeled S in FIGS. 3 and 4 indicates the length of the suction channels 2 or 8.
  • the cross-sectional area of the connecting channels 9 is selected such that at an average air speed V A of approx.8.5 m / sec. the air speed in the connecting duct is approx. 8-10 m / sec. is.
  • a connecting duct should always be provided when the sum of the air quantities sucked in through the nozzles 5 results in an air velocity V of 8-18 m / sec., Preferably of 8-10 m / sec. sec.
  • the air speed V in the region of the branch duct must not be less than 6 m / sec. be.
  • the cross section of the second duct 8 is selected such that, despite the opening of a connecting duct 9 and the associated increase in the amount of air, the mean air speed shown in FIG. 3 V K a value of preferably about 8.5 m / sec. reached.
  • V K a value of preferably about 8.5 m / sec. reached.
  • Higher values for V K e.g. 17 m / sec. are still portable in terms of pressure loss. Entry speeds on fans are usually up to
  • the sawtooth-shaped speed profile V K arises with a continuous cross-sectional expansion of the second channel 8, as shown in solid lines in FIG. 2.
  • the air quantities of the suction channel 2 and the second channel 8 enter the common suction chamber 10 and are carried through the filter drum by means of a suction fan (not shown) which is connected downstream of the filter drum 11 and then continue depending on the determination.
  • a suction fan (not shown) which is connected downstream of the filter drum 11 and then continue depending on the determination.
  • the second channel 8 can either be provided with a continuous cross-sectional widening, as shown in FIG. 2, or with a step-wise cross-sectional widening, as shown with dashed lines.
  • the regular air speed V K corresponds essentially to the average speed V K , ie V K ⁇ V K.
  • a second channel 14 is provided between the bobbin creel 7 and the drafting devices 6 and is connected to the suction channel 2 by means of connecting channels 15.
  • a special carrier 16 of the slip gate 7 is required.
  • the second channel 17 is connected to the suction channel 2 by means of connecting channels 18.
  • the second channel 17 clearly also fulfills the function of conveying fibers and thread material.
  • the other elements not designated in FIG. 5 correspond to the elements of the ring spinning machine shown in FIG. 1.

Abstract

Um die Absaugung von Fadenbruch auch bei langen Ringspinnmaschinen auf eine wirtschaftliche Art zur gewährleisten, ist parallel zu einem Absaugkanal (2) ein zweiter Kanal (8) über einem Spulenaufsteckgatter (7) vorgesehen. Beide Kanäle münden in eine gemeinsame Saugkammer (nicht gezeigt). Die Verbindungskanäle (9) führen einen Teil der durch Saugdüsen (5) angesaugten Luftmenge in den zweiten Kanal (8). Der zweite Kanal (8) wird derart in seinem Querschnitt mit zunehmender Länge des Kanales erweitert, daß in beiden Kanälen im wesentlichen die gleiche mittlere Luftgeschwindigkeit entsteht.In order to ensure that thread breakage is extracted in an economical manner, even in the case of long ring spinning machines, a second channel (8) is provided in parallel to a suction channel (2) above a bobbin creel (7). Both channels open into a common suction chamber (not shown). The connecting ducts (9) lead part of the amount of air sucked in through suction nozzles (5) into the second duct (8). The cross section of the second channel (8) is expanded with increasing length of the channel in such a way that essentially the same average air speed is created in both channels.

Description

Die Erfindung bezieht sich auf ein Verfahren und eine Vorrichtung zum Absaugen von Fadenbruch, insbesondere an doppelseitigen Spinnereimaschinen, mit einem über die Maschinenlänge reichenden, mit Saugdüsen versehenen Absaugkanal. Der Kanal befindet sich in einem Bereich unterhalb der Streckwerke und mündet mit seinem Ende in eine Saugkammer.The invention relates to a method and a device for suctioning yarn breakage, in particular on double-sided spinning machines, with a suction channel extending over the machine length and provided with suction nozzles. The channel is located in an area below the drafting systems and ends at the end in a suction chamber.

Die bekannten Ringspinnmaschinen weisen im Bereich unterhalb der Streckwerke in der Regel einen Absaugkanal für beide Ringspinnseiten auf. Bei langen Maschinen ergeben sich dadurch zwangsläufig lange Absaugkanäle mit entsprechend hohem Druckverlust, d.h. mit einem entsprechend niederigeren Unterdruck im Anfangsbereich des Absaugkanals und einer daraus resultierenden zu knappen Saugwirkung. Um trotzdem mit jeder Absaugdüse im wesentlichen dieselbe Luftmenge anzusaugen, müssen einerseits hohe Unterdrücke im Endbereich erzeugt werden, die anderseits durch derartige Querschnittsverengungen in den Saugdüsen kompensiert werden müssen, so dass Wickelgefahr an den untersten Streckwerkrollen entstehen kann. Wickelgefahr besteht dann, wenn bei Fadenbruch das vom Streckwerk abgegebenen Fasermaterial infolge zu kleiner Luftgeschwindigkeit oder zu kleinem Querschnitt der Saugdüse nicht richtig abgesaugt werden kann.The known ring spinning machines generally have a suction channel for both ring spinning sides in the area below the drafting units. In the case of long machines, this inevitably results in long suction channels with a correspondingly high pressure loss, ie with a correspondingly lower negative pressure in the initial region of the suction channel and a suction action which is too short as a result. In order to nevertheless suck in essentially the same amount of air with each suction nozzle, on the one hand high negative pressures must be generated in the end area, which on the other hand must be compensated for by such cross-sectional constrictions in the suction nozzles, so that there is a risk of winding on the lowest drafting rollers. Wrap Driving occurs when the thread material released by the drafting device cannot be sucked off properly due to the air speed being too small or the cross-section of the suction nozzle being too small.

Aus hohen Druckverlusten resultiert ausserdem ein hoher Leistungsbedarf.High pressure losses also result in a high power requirement.

Aus der deutschen Auslegeschrift Nr. 12 65 017 ist eine doppelseitige Spinnereimaschine bekannt, bei welcher je Maschinenseite ein sich über die ganze Maschinenlänge erstreckender Kanal vorgesehen ist.A double-sided spinning machine is known from German specification No. 12 65 017, in which a channel extending over the entire length of the machine is provided on each machine side.

Um dem vorgenannten Problem der hohen Luftgeschwindigkeit mindestens teilweise entgegenzutreten, ist pro Kanal eine Filter-Ventilatoreinheit in der Mitte der Maschinenlänge angeordnet. Die Einheit ist über einem zur Ringspinnmaschine gehörenden Spulenaufsteckgatter angeordnet.In order to at least partially counter the aforementioned problem of high air speed, a filter-fan unit is arranged in the middle of the machine length per channel. The unit is arranged above a bobbin creel belonging to the ring spinning machine.

Jede Einheit ist durch einen Kanal mit dem entsprechenden Absaugkanal verbunden.Each unit is connected to the corresponding suction channel by a duct.

Durch eine solche Anordnung entsteht der Nachteil, dass die Filter-Ventilatoreinheit über dem Spulengatter vorgesehen werden muss, was eine relativ grosse totale Maschinenhöhe erfordert.Such an arrangement has the disadvantage that the filter-fan unit must be provided above the creel, which requires a relatively large total machine height.

Der Erfindung liegt deshalb die Aufgabe zugrunde, auch bei langen Maschinen eine gleichmässige Absaugwirkung zu erzielen, ohne die Maschinenhöhe wesentlich zu erhöhen, unter Beibehaltung einer günstigen mittleren Luftgeschwindigkeit und damit niedrigem Energiebedarf.The invention is therefore based on the object of achieving a uniform suction effect even on long machines without significantly increasing the machine height, while maintaining a favorable average air speed and thus low energy consumption.

Die Erfindung,wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe verfahrensmässig dadurch, dass parallel zum genannten Luftstrom ein zweiter in einem parallelen Kanal geführter Luftstrom gebildet wird, der an einer Stelle vom ersten Luftstrom abgezweigt wird, an der der erste Luftstrom eine Luftgeschwindigkeit von im Maximum ca. 18 m/sec. erreicht hat.The invention, as characterized in the claims, achieves the object procedurally in that a second air stream guided in a parallel channel is formed parallel to the air stream mentioned, which is branched off from the first air stream at a point at which the first air stream has an air velocity of a maximum of approx. 18 m / sec. has reached.

Vorrichtungsmässig wird die Aufgabe dadurch gelöst, dass parallel zum Absaugkanal ein zweiter Kanal vorgesehen ist, sowie dass mindestens ein im wesentlichen senkrechter Verbindungskanal zwischen dem Absaugkanal und dem zweiten Kanal vorgesehen ist.In terms of the device, the object is achieved in that a second channel is provided parallel to the suction channel, and in that at least one essentially vertical connecting channel is provided between the suction channel and the second channel.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass trotz langem Absaugkanal eine kleine Differenz der Geschwindigkeit der Förderluft, zwischen Anfang und Ende des Absaugkanales, eingehalten werden kann, was im wesentlichen ausgeglichene Geschwindigkeits- und damit Druckverhältnisse auf der ganzen Länge der Maschine ergibt.The advantages achieved by the invention are essentially to be seen in the fact that, despite the long suction channel, a small difference in the speed of the conveying air between the beginning and end of the suction channel can be maintained, which essentially balances the speed and thus pressure ratios along the entire length of the Machine results.

Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen näher erläutert.The invention is explained in more detail below with the aid of drawings which illustrate only one embodiment.

Es zeigt:

  • Fig. 1 ein Querschnitt durch eine doppelseitige Ringspinnmaschine mit erfindungsgemässer Fadenabsaugvorrichtung,
  • Fig. 2 eine Längsansicht der erfindungsgemässen Fadenabsaugvorrichtung, schematisch dargestellt,
  • Fig. 3 ein Geschwindigkeitsdiagramm der Luft im zweiten Kanal,
  • Fig. 4 ein Geschwindigkeitsdiagramm der Luft im Absaugkanal,
  • Fig. 5 ein Querschnitt durch die Ringspinnmaschine von Fig. 1 mit je einer Variante der erfindungsgemässen Fadenabsaugvorrichtung.
It shows:
  • 1 shows a cross section through a double-sided ring spinning machine with a thread suction device according to the invention,
  • Fig. 2 is a longitudinal view of the invention Thread suction device, shown schematically,
  • 3 is a speed diagram of the air in the second channel,
  • 4 shows a speed diagram of the air in the suction duct,
  • 5 shows a cross section through the ring spinning machine of FIG. 1, each with a variant of the thread suction device according to the invention.

In einer Ringspinnmaschine 1 ist ein Absaugkanal 2 mittels zweier Träger 3 auf einem der Einfachheit halber als Unterteil 4 bezeichneten Teil der Ringspinnmaschine abgestützt.In a ring spinning machine 1, a suction channel 2 is supported by means of two carriers 3 on a part of the ring spinning machine, referred to as the lower part 4 for the sake of simplicity.

Am Absaugkanal 2 sind Absaugdüsen 5 angeschlossen, die je am Ausgang eines Streckwerkes 6 derart nahe am Fadenlauf (nicht gezeigt) geführt sind, dass beim Fadenbruch das vom Streckwerk 6 abgelieferte Fasermaterial abgesaugt wird. Ausserdem saugen die Düsen während dem Spinnprozess Staub und Flugfasern ab.Suction nozzles 5 are connected to the suction channel 2 and are each guided so close to the thread path (not shown) at the outlet of a drafting system 6 that the fiber material delivered by the drafting system 6 is suctioned out when the thread breaks. In addition, the nozzles suck off dust and flying fibers during the spinning process.

Oberhalb eines Spulenaufsteckgatters 7 ist ein zweiter Kanal 8 vorgesehen, der mittels senkrechter Verbindungskanäle 9 mit dem Absaugkanal 2 verbunden ist. In Figur 2 ist schematisch dargestellt, dass die Kanäle 2 und 8 in eine Saugkammer 10 münden, in welcher, z.B. ein Trommelfilter 11 vorgesehen ist, der seinerseits mit einem Saugventilator (nicht gezeigt) verbunden ist.A second channel 8 is provided above a coil plug-in gate 7 and is connected to the suction channel 2 by means of vertical connecting channels 9. In Figure 2 it is shown schematically that the channels 2 and 8 open into a suction chamber 10 in which, e.g. a drum filter 11 is provided, which in turn is connected to a suction fan (not shown).

Am Anfang des Absaugkanales 2 ist eine sogenannte Falschluftöffnung 12 vorgesehen. Die Oeffnung 12 und der im Absaugkanal 2 vorgesehene Unterdruck ist derart aufeinander abgestimmt, dass in einem an die Oeffnung 12 anschliessenden ersten Teil 13 des Absaugkanales 2 die Luftgeschwindigkeit am Anfang 4-5 m/sec. erreicht, um damit mit Sicherheit ein von der ersten Düse 5.1 angesaugtes Faser- und Fadenmaterial transportieren zu können.At the beginning of the suction channel 2, a so-called false air opening 12 is provided. The opening 12 and the negative pressure provided in the suction channel 2 are matched to one another in such a way that in a first part 13 of the suction channel 2 adjoining the opening 12, the air speed at the beginning is 4-5 m / sec. achieved so that it can safely transport a fiber and thread material sucked in by the first nozzle 5.1.

Die Querschnittsfläche des zweiten Kanales 8, sowie die Verbindungskanäle 9 sind derart gewählt, dass, wie in Figur 4 mit strichpunktierter Linie dargestellt, im Absaugkanal 2 eine mittlere Luftgeschwindigkeit VA von ca. 8.5 m/sec. erreicht wird.The cross-sectional area of the second duct 8 and the connecting ducts 9 are selected such that, as shown in dash-dotted lines in FIG. 4, an average air velocity V A of approximately 8.5 m / sec. is achieved.

Wird ein gleichbleibender Querschnitt (Fig. 2) des Absaugkanales gewählt, so ergibt sich ein, in Fig. 4 mit ausgezogenen Linien dargestellter, sägezahnförmiger Luftgeschwindigkeitsverlauf VA.Is a constant cross-sectional (Fig. 2) of the suction channel is selected, 4 sawtooth L results in a, in FIG. By solid lines shown, uftgeschwindigkeitsverlauf V A.

Der sägezahnförmige Geschwindigkeitsverlauf V entsteht einerseits durch die Luftabzweigung in die Verbindungskanäle 9 und anderseits durch die Luftzufuhr der Düsen 5.The sawtooth-shaped speed profile V arises, on the one hand, from the branching of air into the connecting channels 9 and, on the other hand, from the air supply to the nozzles 5.

Der Querschnitt kann als Variante pro Stufe, d.h. von Verbindungskanal zu Verbindungskanal proportional zum zunehmenden Luftvolumen vergrössert werden, so dass der Luftgeschwindigkeitsverlauf linear wird, d.h. VA entspricht V A.The cross section can be enlarged as a variant per stage, ie from connection channel to connection channel in proportion to the increasing air volume, so that the air speed curve becomes linear, ie corresponds to V A V A.

Die in Figur 2 gezeigte Anzahl Düsen ist eine rein schematische Darstellung. Die in den Figuren 3 und 4 mit S bezeichnete Abszisse weist auf die Länge der Saugkanäle 2 oder 8 hin.The number of nozzles shown in Figure 2 is a pure one schematic representation. The abscissa labeled S in FIGS. 3 and 4 indicates the length of the suction channels 2 or 8.

Die Querschnittsfläche der Verbindungskanäle 9 ist derart gewählt, dass bei einer mittleren Luftgeschwindigkeit V A von ca. 8,5 m/sec. die Luftgeschwindigkeit im Verbindungskanal ca. 8-10 m/sec. beträgt.The cross-sectional area of the connecting channels 9 is selected such that at an average air speed V A of approx.8.5 m / sec. the air speed in the connecting duct is approx. 8-10 m / sec. is.

Als Regel kann deshalb angenommen werden, dass immer dann ein Verbindungskanal vorgesehen werden soll, wenn sich durch die Summe der durch die Düsen 5 angesaugten Luftmengen im Absaugkanal 2 eine Luftgeschwindigkeit V von 8-18 m/sec., vorzugsweise von 8-10 m/sec., eingestellt hat.As a rule, it can therefore be assumed that a connecting duct should always be provided when the sum of the air quantities sucked in through the nozzles 5 results in an air velocity V of 8-18 m / sec., Preferably of 8-10 m / sec. sec.

Die Zunahme der Luftgeschwindigkeit VA im in Figur 2 verkürzt dargestellten ersten Teil 13 ist in Figur 4 ebenfalls verkürzt dargestellt.The increase in air speed V A in the first part 13, shown shortened in FIG. 2, is also shown shortened in FIG. 4.

Um eine Förderung des Faser- und Fadenmaterials auch in Abzweigstellen zu gewährleisten, darf im Bereich des Abzweigkanales die Luftgeschwindigkeit V nicht kleiner als 6 m/sec. sein.In order to ensure that the fiber and thread material is also conveyed in branch points, the air speed V in the region of the branch duct must not be less than 6 m / sec. be.

Der Querschnitt des zweiten Kanales 8 ist derart gewählt, dass trotz jedem Einmünden eines Verbindungskanales 9 und der damit verbundenen Erhöhung der Luftmenge die mit Figur 3 gezeigte mittlere Luftgeschwindigkeit V K einen Wert von vorzugsweise ca. 8.5 m/sec. erreicht. Höhere Werte für VK, z.B. 17 m/sec. sind in bezug auf Druckverluste noch tragbar. Eintrittsgeschwindigkeiten an Ventilatoren betragen in der Regel bis Der sägezahnförmige Geschwindigkeitsverlauf VK entsteht bei kontinuierlicher Querschnittserweiterung des zweiten Kanales 8, wie dies in Figur 2 mit ausgezogenen Linien dargestellt ist.The cross section of the second duct 8 is selected such that, despite the opening of a connecting duct 9 and the associated increase in the amount of air, the mean air speed shown in FIG. 3 V K a value of preferably about 8.5 m / sec. reached. Higher values for V K , e.g. 17 m / sec. are still portable in terms of pressure loss. Entry speeds on fans are usually up to The sawtooth-shaped speed profile V K arises with a continuous cross-sectional expansion of the second channel 8, as shown in solid lines in FIG. 2.

Die Luftmengen des Absaugkanales 2 und des zweiten Kanales 8 gelangen in den gemeinsamen Saugraum 10 und werden mittels eines der Filtertrommel 11 nachgeschalteten Saugventilators (nicht gezeigt) durch die Filtertrommel und anschliessend je nach Bestimmung weitergeführt.The air quantities of the suction channel 2 and the second channel 8 enter the common suction chamber 10 and are carried through the filter drum by means of a suction fan (not shown) which is connected downstream of the filter drum 11 and then continue depending on the determination.

Der zweite Kanal 8 kann entweder, wie in Figur 2 mit einer kontinuierlichen Querschnittserweiterung oder wie mit gestrichelten Linien dargestellt, mit einer stufenweisen Querschnittserweiterung versehen werden. Im letzten Fall entspricht die reguläre Luftgeschwindigkeit VK im wesentlichen der mittleren Geschwindigkeit V K , d.h. VK≅ V K.The second channel 8 can either be provided with a continuous cross-sectional widening, as shown in FIG. 2, or with a step-wise cross-sectional widening, as shown with dashed lines. In the latter case, the regular air speed V K corresponds essentially to the average speed V K , ie V K ≅ V K.

Die Fig. 5 zeigt zwei Ausführungsvarianten des zweiten Kanales.5 shows two variants of the second channel.

Im einen Fall ist ein zweiter Kanal 14 zwischen dem Spulenaufsteckgatter 7 und den Streckwerken 6 vorgesehen und mittels Verbindungskanälen 15 mit dem Absaugkanal 2 verbunden. Ein spezieller Träger 16 des Aufsteckgatters 7 ist erforderlich.In one case, a second channel 14 is provided between the bobbin creel 7 and the drafting devices 6 and is connected to the suction channel 2 by means of connecting channels 15. A special carrier 16 of the slip gate 7 is required.

Im zweiten Fall (mit strichpunktierten Linien dargestellt) wird vorgeschlagen, einen zweiten Kanal 17 im Unterteil 4 unterzubringen, was, wie aus der Figur ersichtlich, gewisse Aenderungen am Unterteil erfordert.In the second case (shown with dash-dotted lines), it is proposed to accommodate a second channel 17 in the lower part 4, which, as can be seen from the figure, requires certain changes to the lower part.

Der zweite Kanal 17 ist mittels Verbindungskanälen 18 mit dem Absaugkanal 2 verbunden.The second channel 17 is connected to the suction channel 2 by means of connecting channels 18.

Bei dieser Variante erfüllt der zweite Kanal 17 eindeutig ebenfalls die Funktion der Faser- und Fadenmaterialförderung.In this variant, the second channel 17 clearly also fulfills the function of conveying fibers and thread material.

Die übrigen in Figur 5 nicht bezeichneten Elemente entsprechen den Elementen der mit Fig. 1 gezeigten Ringspinnmaschine.The other elements not designated in FIG. 5 correspond to the elements of the ring spinning machine shown in FIG. 1.

Claims (9)

1. Verfahren zum Absaugen bei Fadenbruch, insbesondere an einer doppelseitigen Spinnereimaschine, mit einem in einem über die Maschinenlänge reichenden, mit Saugdüsen versehenen Absaugkanal geführten, im Unterdruck stehenden Luftstrom, mittels welchem die von den Saugdüsen abgesaugten Faser-oder Fadenteilchen in eine Saugkammer gefördert werden, dadurch gekennzeichnet, dass parallel zum genannten Luftstrom ein zweiter in einem parallelen Kanal geführter Luftstrom gebildet wird, der an einer Stelle vom ersten Luftstrom abgezweigt wird, an der der erste Luftstrom eine Luftgeschwindigkeit von im Maximum ca. 18 m/sec. erreicht hat.1. A method of suction in the event of thread breakage, in particular on a double-sided spinning machine, with an air stream which is guided in a suction channel and extends over the length of the machine and is provided with suction nozzles and by means of which the fiber or thread particles sucked off by the suction nozzles are conveyed into a suction chamber , characterized in that a second air stream guided in a parallel channel is formed parallel to the air stream mentioned and is branched off from the first air stream at a point at which the first air stream has an air velocity of a maximum of approximately 18 m / sec. has reached. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Luftstrom an einer Stelle vom ersten Luftstrom abgezweigt wird, an der der erste Luftstrom eine Luftgeschwindigkeit von 8-10 m/sec. erreicht hat.2. The method according to claim 1, characterized in that the second air stream is branched off at a point from the first air stream at which the first air stream has an air velocity of 8-10 m / sec. has reached. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die mittlere Geschwindigkeit in demjenigen Luftstrom im Minimum ca. 4 m/sec. und im Maximum ca. 18 m/sec. beträgt, in dem die Faser- und Fadenteilchen transportiert werden müssen.3. The method according to claim 1, characterized in that the average speed in that air flow in the minimum about 4 m / sec. and a maximum of approx. 18 m / sec. is in which the fiber and thread particles must be transported. 4. Fadenabsaugvorrichtung, insbesondere für doppelseitige Spinnereimaschinen, mit einem über die Maschinenlänge reichenden, mit Saugdüsen versehenen, sich in einem Bereich unterhalb der Streckwerke befindlichen, in eine Saugkammer mündenden Absaugkanal, dadurch gekennzeichnet, dass parallel zum Absaugkanal ein zweiter Kanal vorgesehen ist, sowie dass mindestens ein im wesentlichen senkrechter Verbindungskanal zwischen dem Absaugkanal und dem zweiten Kanal vorgesehen ist.4. Thread suction device, in particular for double-sided spinning machines, with one over the machine length, provided with suction nozzles, located in an area below the drafting units sensitive suction channel opening into a suction chamber, characterized in that a second channel is provided parallel to the suction channel, and in that at least one substantially vertical connecting channel is provided between the suction channel and the second channel. 5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass beide Kanäle in die Saugkammer münden.5. The method according to claim 4, characterized in that both channels open into the suction chamber. 6. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Absaugkanal auf seiner ganzen Länge einen Querschnitt aufweist, bei dem die mittlere Luftgeschwindigkeit nicht weniger als ca. 4 m/sec. und nicht mehr als ca. 18 m/sec. beträgt.6. The device according to claim 4, characterized in that the suction channel has a cross-section over its entire length, in which the average air speed is not less than about 4 m / sec. and not more than approx. 18 m / sec. is. 7. Vorrichtung nach Anspruch 4 und 6, dadurch gekennzeichnet, dass der Verbindungskanal an derjenigen Stelle am Absaugkanal vorgesehen ist, an der die Luftgeschwindigkeit im Absaugkanal im Maximum ca. 18 m/sec. erreicht hat.7. The device according to claim 4 and 6, characterized in that the connecting channel is provided at that point on the suction channel at which the air speed in the suction channel in the maximum about 18 m / sec. has reached. 8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der zweite Kanal einen pro zusätzliche Stufe erweiterten Querschnitt aufweist.8. The device according to claim 7, characterized in that the second channel has an enlarged cross section per additional step. 9. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass der zweite Kanal einen pro zusätzliche Stufe kontinuierlich sich erweiternden Querschnitt aufweist.9. The device according to claim 7, characterized in that the second channel has a continuously expanding cross section per additional stage.
EP82104694A 1981-07-17 1982-05-28 Broken thread suction device Expired EP0070377B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82104694T ATE22123T1 (en) 1981-07-17 1982-05-28 THREAD EXTRACTION DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH470581 1981-07-17
CH4705/81 1981-07-17

Publications (3)

Publication Number Publication Date
EP0070377A2 true EP0070377A2 (en) 1983-01-26
EP0070377A3 EP0070377A3 (en) 1984-01-04
EP0070377B1 EP0070377B1 (en) 1986-09-10

Family

ID=4281070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82104694A Expired EP0070377B1 (en) 1981-07-17 1982-05-28 Broken thread suction device

Country Status (7)

Country Link
US (1) US4432200A (en)
EP (1) EP0070377B1 (en)
JP (1) JPS5818424A (en)
AT (1) ATE22123T1 (en)
AU (1) AU8535482A (en)
DE (1) DE3273136D1 (en)
ES (1) ES8307939A1 (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
DE3810588A1 (en) * 1988-03-29 1989-10-12 Zinser Textilmaschinen Gmbh EXTRACTION DEVICE FOR A SPINNING MACHINE
DE4319959C2 (en) * 1992-07-21 2003-01-02 Rieter Ag Maschf Frame for spinning machine or twisting machine
DE10041363B4 (en) * 2000-08-23 2011-01-20 Maschinenfabrik Rieter Ag spinning machine

Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
DD299322A5 (en) * 1989-09-21 1992-04-09 Maschinenfabrik Rieter Ag,Ch METHOD AND DEVICE FOR FINE CLEANING OF TEXTILE FIBERS
CN1065361C (en) * 1994-06-02 2001-05-02 中华映管股份有限公司 Monocolour electron gun capable of generating multigroup electron beams
EP3170629B1 (en) * 2014-07-15 2019-05-15 FUJI Corporation Inspection method
DE102018131767A1 (en) * 2018-12-11 2020-06-18 Saurer Spinning Solutions Gmbh & Co. Kg Textile machine producing cross-wound bobbins

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GB635942A (en) * 1940-10-17 1950-04-19 Heinrich Thoma Improvements in or relating to devices for collecting and removing broken ends in spinning and like machines
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3810588A1 (en) * 1988-03-29 1989-10-12 Zinser Textilmaschinen Gmbh EXTRACTION DEVICE FOR A SPINNING MACHINE
DE4319959C2 (en) * 1992-07-21 2003-01-02 Rieter Ag Maschf Frame for spinning machine or twisting machine
DE10041363B4 (en) * 2000-08-23 2011-01-20 Maschinenfabrik Rieter Ag spinning machine

Also Published As

Publication number Publication date
ES514677A0 (en) 1983-08-01
AU8535482A (en) 1983-01-20
EP0070377B1 (en) 1986-09-10
EP0070377A3 (en) 1984-01-04
JPH0242928B2 (en) 1990-09-26
ES8307939A1 (en) 1983-08-01
US4432200A (en) 1984-02-21
JPS5818424A (en) 1983-02-03
ATE22123T1 (en) 1986-09-15
DE3273136D1 (en) 1986-10-16

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