EP0175851B1 - Fibre-feeding apparatus for a hopper - Google Patents

Fibre-feeding apparatus for a hopper Download PDF

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Publication number
EP0175851B1
EP0175851B1 EP85107528A EP85107528A EP0175851B1 EP 0175851 B1 EP0175851 B1 EP 0175851B1 EP 85107528 A EP85107528 A EP 85107528A EP 85107528 A EP85107528 A EP 85107528A EP 0175851 B1 EP0175851 B1 EP 0175851B1
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EP
European Patent Office
Prior art keywords
chute
opening roller
fibre material
arrangement according
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85107528A
Other languages
German (de)
French (fr)
Other versions
EP0175851A1 (en
Inventor
Paul Staeheli
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
Original Assignee
Maschinenfabrik Rieter AG
Priority date (The priority date 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 date listed.)
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4276530&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0175851(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Priority to AT85107528T priority Critical patent/ATE36731T1/en
Publication of EP0175851A1 publication Critical patent/EP0175851A1/en
Application granted granted Critical
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G23/00—Feeding fibres to machines; Conveying fibres between machines
    • D01G23/02—Hoppers; Delivery shoots

Definitions

  • the present invention relates to an arrangement according to the preamble of patent claim 1.
  • the fiber flakes fly away from the opening roller at high speed.
  • the fiber material is often accumulated in the shaft in an unsuitable state for further processing.
  • it is generally not homogeneous in its density, so that fiber regions of different densities are present in the filling shaft.
  • this disadvantage should be avoided.
  • This is defined by the features present in the characterizing part of claim 1. This slows down the fiber flakes immediately after they have left the opening roller. In addition, the air flow between the opening roller and the filling shaft is influenced. The fiber flakes lose a significant part of their kinetic energy, so that they sink relatively gently to the ground and are evenly distributed over the entire cross-section of the shaft. In addition, the turbulence in the area of the filling shaft is reduced.
  • the invention will now be explained in more detail using an exemplary embodiment and the drawing.
  • the latter shows a cross section of the upper end of a filling shaft and a beater or opening roller arranged thereon.
  • the fiber material is fed into a feed channel 1 and arrives at feed rollers 2 which are rotatable in the direction of rotation indicated by the arrows 3.
  • An opener or beater roller 4 is provided below the feed rollers 2. This can be rotated in the direction of the pillar 5. Tips 6 are attached to their lateral surface.
  • a filling chute 7 is located below the roller 4.
  • a deflection element 8 is pivotable about a pivot axis 9.
  • the element 8 covers the area of the fiber material flying away from the roller 4. It forms a surface element 10 which is adapted to the curvature of the lateral surface of the opening roller 4.
  • the opening roller 4 rotates at high speed.
  • the rollers 2 move fiber material against the roller 4.
  • the tips 6 of this fiber material are continuously torn away as loose fiber flakes of various sizes or as dissolved fibers and conveyed into the shaft 7. Because of the high speed of this torn-away material, there is a tendency for the flakes in the filling shaft 7 to fly to the same places. As a result, the fiber material is distributed inhomogeneously in the shaft 7 and regions of different densities are formed. This is disadvantageous for the further processing of the same.
  • the curved surface element 10 primarily causes the fibers to be deflected from their trajectory, which was given to them by the roller 4. As a result, they lose kinetic energy, depending on the pivoting position of the deflecting element 8. If one directs the trajectory of the flakes flying away from the element 8 against the inside of the wall opposite the deflecting element 8, shown in the drawing as the right side of the shaft 7, then a loss of kinetic energy occurs again upon impact. As a result of the effect of the element 8, the air flow generated by the opening roller 4 and directed into the shaft 7 is also influenced. This will make the fiber flakes. strongly mixed before touching down and also sink down in a calm movement.
  • the braking of the fiber material after its detachment from the roller 4 can be varied as desired by suitably adjusting the pivoting position of the deflecting element 8 and the impact element 12, which is designed as a plate in the example shown.
  • the deflecting element 8 and the impact element 12 can be pivoted and adjusted as desired between the positions shown in broken lines.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Revetment (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1. Arrangement for filling a chute (7) with fibre material, in which the chute (7) is filled by collecting fibre material and is of rectangular section, a rotatable opening roller (4) being arranged above the chute (7) with its axis of rotation parallel to a side face of the chute (7) and a feed device (2, 3) for feed of fibre material being located above the opening roller (4), characterised in that a diverter element (8) is provided in the region of the fibre material leaving the opening roller (4) and serves to divert the material from its direction of flight and into the interior of the chute (7) while dissipating part of the kinetic energy of the material.

Description

Die vorliegende Erfindung bezieht sich auf eine Anordnung gemäss dem Oberbegriff des Patentanspruchs 1.The present invention relates to an arrangement according to the preamble of patent claim 1.

Auf dem Gebiet der Spinnerei ist es bekannt, Faserwickel oder Faserwatte für flockengespiesene Maschinen, insbesondere Karden oder Krempel, zu einem lockeren Fasermaterial aufzulösen, um es für den Spinnprozess vorzubereiten. Dabei gelangen Öffnerwalzen bzw. Schlägerwalzen zur Anwendung. Diese weisen aus ihrer Oberfläche herausstehende Spitzen auf. Zum Auflösen noch zusammenhängender Fasern oder Faserbüschel werden diese gegen die mit grosser Geschwindigkeit rotierenden Öffnerwalzen bewegt. Dabei reissen die Spitzen die Faserbüschel auf und Fasermaterial wird in Form kleiner und luftiger Faserflocken weggerissen. Die letzteren werden im allgemeinen in einem Füllschacht gesammelt, um daraufhin weiterverarbeitet zu werden.It is known in the field of spinning to dissolve fiber coils or fiber wadding for flock-spun machines, in particular cards or cards, into a loose fiber material in order to prepare it for the spinning process. Opener rollers or racket rollers are used here. These have peaks protruding from their surface. To dissolve fibers or tufts of fibers that are still connected, they are moved against the opening rollers rotating at high speed. The tips tear the tufts of fibers and fiber material is torn away in the form of small and airy fiber flakes. The latter are generally collected in a hopper for further processing.

Die Faserflocken fliegen mit grosser Geschwindigkeit von der Öffnerwalze weg. Als Folge davon wird das Fasermaterial oft in einem für die weitere Verarbeitung ungeeigneten Zustand im Schacht angesammelt. Insbesondere ist es im allgemeinen in seiner Dichte nicht homogen, so dass im Füllschacht Faserbereiche verschiedener Dichten vorhanden sind.The fiber flakes fly away from the opening roller at high speed. As a result, the fiber material is often accumulated in the shaft in an unsuitable state for further processing. In particular, it is generally not homogeneous in its density, so that fiber regions of different densities are present in the filling shaft.

Gemäss der Erfindung soll dieser Nachteil vermieden werden. Diese ist durch die im kennzeichnenden Teil des Anspruchs 1 vorhandenen Merkmale definiert. Durch diese werden die Faserflokken unmittelbar nachdem sie die Öffnerwalze verlassen haben, verlangsamt. Zusätzlich wird die Luftströmung zwischen der Öffnerwalze und dem Füllschacht beeinflusst. Die Faserflocken verlieren dadurch einen wesentlichen Teil ihrer kinetischen Energie, so dass sie relativ sanft zu Boden sinken und sich gleichmässig auf den ganzen Schachtquerschnitt verteilen. Zusätzlich wird die Verwirbelung im Bereich des Füllschachtes reduziert.According to the invention, this disadvantage should be avoided. This is defined by the features present in the characterizing part of claim 1. This slows down the fiber flakes immediately after they have left the opening roller. In addition, the air flow between the opening roller and the filling shaft is influenced. The fiber flakes lose a significant part of their kinetic energy, so that they sink relatively gently to the ground and are evenly distributed over the entire cross-section of the shaft. In addition, the turbulence in the area of the filling shaft is reduced.

Die Erfindung sei nun anhand eines Ausführungsbeispieles und der Zeichnung näher erläutert. Die letztere zeigt einen Querschnitt des oberen Endes eines Füllschachtes und eine an diesem angeordnete Schläger- oder Öffnerwalze.The invention will now be explained in more detail using an exemplary embodiment and the drawing. The latter shows a cross section of the upper end of a filling shaft and a beater or opening roller arranged thereon.

Wie in der Zeichnung gezeigt, wird das Fasermaterial in einem Zubringerkanal 1 herangeführt und gelangt zu Speisewalzen 2, welche im durch die Pfeile 3 angegebenen Drehsinn rotierbar sind. Unterhalb der Speisewalzen 2 ist eine Öffner- bzw. Schlägerwalze 4 vorhanden. Diese ist in Richtung des Pfeilers 5 rotierbar. Auf ihrer Mantelfläche sind Spitzen 6 angebracht. Unterhalb der Walze 4 befindet sich ein Füllschacht 7.As shown in the drawing, the fiber material is fed into a feed channel 1 and arrives at feed rollers 2 which are rotatable in the direction of rotation indicated by the arrows 3. An opener or beater roller 4 is provided below the feed rollers 2. This can be rotated in the direction of the pillar 5. Tips 6 are attached to their lateral surface. A filling chute 7 is located below the roller 4.

Ein Umlenkelement 8 ist um eine Schwenkachse 9 schwenkbar. Das Element 8 überdeckt den Bereich des von der Walze 4 wegfliegenden Fasermaterials. Es bildet ein der Krümmung der Mantelfläche der Öffnerwalze 4 angepasstes Flächenelement 10. Im weitern ist noch ein um eine Schwenkachse 11 schwenkbares Prallorgan 12 vorhanden. Das Umlenkelement 8 und das Prallorgan 12 sind zwischen den strichpunktiert gezeichneten Lagen beliebig schwenk- und einstellbar.A deflection element 8 is pivotable about a pivot axis 9. The element 8 covers the area of the fiber material flying away from the roller 4. It forms a surface element 10 which is adapted to the curvature of the lateral surface of the opening roller 4. There is also a baffle element 12 which can be pivoted about a pivot axis 11. The deflection element 8 and the impact element 12 can be pivoted and adjusted as desired between the positions shown in dash-dot lines.

Im Betrieb der Anordnung rotiert die Öffnerwalze 4 mit grosser Geschwindigkeit. Gleichzeitig bewegen die Walzen 2 Fasermaterial gegen die Walze 4. Dabei wird durch die Spitzen 6 dieses Fasermaterial als lose Faserflocken verschiedener Grössen oder als aufgelöste Fasern dauernd weggerissen und in den Schacht 7 hinein befördert. Wegen der hohen Geschwindigkeit dieses weggerissenen Materials besteht die Neigung, dass die Flocken im Füllschacht 7 zu gleichen Stellen hinfliegen. Dadurch wird das Fasermaterial im Schacht 7 unhomogen verteilt und es bilden sich Bereiche verschiedener Dichten. Dies ist für die Weiterverarbeitung desselben nachteilig.During operation of the arrangement, the opening roller 4 rotates at high speed. At the same time, the rollers 2 move fiber material against the roller 4. In this case, the tips 6 of this fiber material are continuously torn away as loose fiber flakes of various sizes or as dissolved fibers and conveyed into the shaft 7. Because of the high speed of this torn-away material, there is a tendency for the flakes in the filling shaft 7 to fly to the same places. As a result, the fiber material is distributed inhomogeneously in the shaft 7 and regions of different densities are formed. This is disadvantageous for the further processing of the same.

Durch das Vorsehen des Umlenkelementes 8 soll eine solche Art der Ablagerung vermieden werden. Das gekrümmte Flächenelement 10 bewirkt vor allem ein Ablenken der Fasern aus ihrer Flugbahn, die ihnen durch die Walze 4 erteilt wurde. Dadurch verlieren sie, je nach der Schwenklage des Umlenkelementes 8, an kinetischer Energie. Richtet man die Flugbahn der vom Element 8 wegfliegenden Flocken gegen die Innenseite der dem Umlenkelement 8 gegenüberliegenden, in der Zeichnung als rechte Seite des Schachtes 7 dargestellte Wandung, so tritt beim Aufprallen an diese nochmals ein Verlust von kinetischer Energie ein. Als Folge der Wirkung des Elementes 8 wird auch die durch die Öffnerwalze 4 erzeugte, in den Schacht 7 hineingerichtete Luftströmung beeinflusst. Dadurch werden die Faserflocken. vor ihrem Aufsetzen stark vermischt und sinken zudem in ruhiger Bewegung nach unten.Such a type of deposit is to be avoided by the provision of the deflecting element 8. The curved surface element 10 primarily causes the fibers to be deflected from their trajectory, which was given to them by the roller 4. As a result, they lose kinetic energy, depending on the pivoting position of the deflecting element 8. If one directs the trajectory of the flakes flying away from the element 8 against the inside of the wall opposite the deflecting element 8, shown in the drawing as the right side of the shaft 7, then a loss of kinetic energy occurs again upon impact. As a result of the effect of the element 8, the air flow generated by the opening roller 4 and directed into the shaft 7 is also influenced. This will make the fiber flakes. strongly mixed before touching down and also sink down in a calm movement.

Eine noch bessere Vermischung und noch grössere Verlangsamung des Fasermaterials wird erhalten, wenn zusätzlich noch das Prallorgan 12 vorgesehen wird. Dieses trägt nochmals ganz wesentlich zur Vernichtung kinetischer Energie des von der Öffnerwalze 4 her fliegenden Fasermaterials bei.An even better mixing and even greater slowing down of the fiber material is obtained if the impact element 12 is additionally provided. This again contributes significantly to the destruction of kinetic energy of the fiber material flying from the opening roller 4.

Durch geeignete Einstellung der Schwenklage des Umlenkelementes 8 und des Prallorgans 12, welches im gezeigten Beispiel als Platte ausgebildet ist, kann das Abbremsen des Fasermaterials nach seiner Ablösung von der Walze 4 nach Wunsch variiert werden. Um dies durchzuführen, sind das Umlenkelement 8 und das Prallorgan 12 zwischen den strichpunktiert gezeichneten Stellungen beliebig schwenk- und einstellbar.The braking of the fiber material after its detachment from the roller 4 can be varied as desired by suitably adjusting the pivoting position of the deflecting element 8 and the impact element 12, which is designed as a plate in the example shown. In order to do this, the deflecting element 8 and the impact element 12 can be pivoted and adjusted as desired between the positions shown in broken lines.

Claims (7)

1. Arrangement for filling a chute (7) with fibre material, in which the chute (7) is filled by collecting fibre material and is of rectangular section, a rotatable opening roller (4) being arranged above the chute (7) with its axis of rotation parallel to a side face of the chute (7) and a feed device (2,3) for feed of fibre material being located above the opening roller (4), characterised in that a diverter element (8) is provided in the region of the fibre material leaving the opening roller (4) and serves to divert the material from its direction of flight and into the interior ofthe chute (7) while dissipating part of the kinetic energy of the material.
2. Arrangement according to claim 1 characterised in that the diverter element (8) directs the fibre material towards the internal face of the side of the chute enclosure lying opposite the diverter element.
3. Arrangement according to claim 1 characterised in that the diverter element (8) comprises a curved sheet element (10) covering the envelope surface of the opening roller (4) on the side of departure of the fibres and adapted to the curvature of this envelope surface, which element (10) extends downwardly at least from the neighborhood of the feed device (2).
4. Arrangement according to claim 1 characterised in that the diverter element (8) is pivotably adjustable into various pivot positions about a pivot axis (9) parallel to the axis of rotation of the opening roller (4)
5. Arrangement according to claim 1 characterised in that an impact member (12) is located in the path of travel of the fibre material determined by the diverter element (8).
6. Arrangement according to claim 5 characterised in that the impact element (12) comprises a plate located in the interior of the chute (7).
7. Arrangement according to claim 5 characterised in that the impact element (12) is pivotable about a pivot axis (11) arranged parallel to the rotation axis of the opening roller (4) and is adjustable into various pivot positions.
EP85107528A 1984-09-18 1985-06-18 Fibre-feeding apparatus for a hopper Expired EP0175851B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85107528T ATE36731T1 (en) 1984-09-18 1985-06-18 ARRANGEMENT FOR FILLING A MANHOLE WITH FIBER MATERIAL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH446084 1984-09-18
CH4460/84 1984-09-18

Publications (2)

Publication Number Publication Date
EP0175851A1 EP0175851A1 (en) 1986-04-02
EP0175851B1 true EP0175851B1 (en) 1988-08-24

Family

ID=4276530

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85107528A Expired EP0175851B1 (en) 1984-09-18 1985-06-18 Fibre-feeding apparatus for a hopper

Country Status (5)

Country Link
EP (1) EP0175851B1 (en)
JP (1) JPS61239023A (en)
AT (1) ATE36731T1 (en)
DE (1) DE3564595D1 (en)
IN (1) IN164719B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN171263B (en) * 1987-04-13 1992-08-29 Rieter Ag Maschf
DE3843656A1 (en) * 1988-12-23 1990-07-05 Rieter Ag Maschf DEVICE FOR OPENING TEXTILE FIBER BALLS
DE3912482A1 (en) * 1989-02-14 1990-08-16 Hollingsworth Gmbh DINING DEVICE FOR CARD, CRAWLE AND THE LIKE
DE19826070B4 (en) * 1998-06-12 2015-12-10 Trützschler GmbH & Co Kommanditgesellschaft Device on a spinning machine for producing a Faserflockenvlieses, z. B. of cotton, chemical fibers
JP2003245933A (en) * 2002-02-26 2003-09-02 Kondo Unyu-Kiko Co Ltd Recycled plate and method and apparatus for manufacturing the same
EP1848846A1 (en) * 2005-02-17 2007-10-31 Maschinenfabrik Rieter Ag Feed shaft for spinning machines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3062393A (en) * 1960-10-18 1962-11-06 Glen Raven Cotton Mills Inc Feeding regulator for textile fibers
FR1398603A (en) * 1964-06-15 1965-05-07 Glen Raven Cotton Mills Feed regulator for textile fibers
US4240180A (en) * 1979-02-07 1980-12-23 Rando Machine Corporation Fiber feeding apparatus for carding machines and the like
DE8124640U1 (en) * 1981-08-22 1982-01-21 Trützschler GmbH & Co KG, 4050 Mönchengladbach Device for opening and cleaning cotton waste

Also Published As

Publication number Publication date
ATE36731T1 (en) 1988-09-15
IN164719B (en) 1989-05-13
JPS61239023A (en) 1986-10-24
EP0175851A1 (en) 1986-04-02
JPH0141726B2 (en) 1989-09-07
DE3564595D1 (en) 1988-09-29

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