EP0353482A2 - Apparatus for opening and cleaning fibre material, especially cotton - Google Patents

Apparatus for opening and cleaning fibre material, especially cotton Download PDF

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Publication number
EP0353482A2
EP0353482A2 EP89112264A EP89112264A EP0353482A2 EP 0353482 A2 EP0353482 A2 EP 0353482A2 EP 89112264 A EP89112264 A EP 89112264A EP 89112264 A EP89112264 A EP 89112264A EP 0353482 A2 EP0353482 A2 EP 0353482A2
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EP
European Patent Office
Prior art keywords
clothing
roller
clothing roller
opening
fiber
Prior art date
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Granted
Application number
EP89112264A
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German (de)
French (fr)
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EP0353482B1 (en
EP0353482A3 (en
Inventor
Konrad Temburg
Ferdinand Dipl.-Ing. Leifeld
Stefan Dr. Schlichter
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Truetzschler GmbH and Co KG
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Truetzschler GmbH and Co KG
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Publication date
Priority claimed from DE3906640A external-priority patent/DE3906640C2/en
Application filed by Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Publication of EP0353482A2 publication Critical patent/EP0353482A2/en
Publication of EP0353482A3 publication Critical patent/EP0353482A3/en
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Publication of EP0353482B1 publication Critical patent/EP0353482B1/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G9/00—Opening or cleaning fibres, e.g. scutching cotton
    • D01G9/08—Opening or cleaning fibres, e.g. scutching cotton by means of air draught arrangements
    • D01G9/10—Opening or cleaning fibres, e.g. scutching cotton by means of air draught arrangements using foraminous cylinders

Definitions

  • the invention relates to a device for opening and cleaning fiber material, in particular cotton, with at least two clothing rollers arranged downstream of a feed device, in which at least two clothing rollers are each assigned at least one separation edge for impurities with an associated separation opening and in which the centrifugal forces on the circumference of the second clothing roller are greater than with the first clothing roller.
  • a first clothing roller is provided according to a first embodiment (FIG. 1), which is followed by a second clothing roller.
  • the direction of rotation of the two rollers is opposite.
  • the second clothing roller which is smaller in diameter than the first clothing roller, rotates at a much higher speed than the first clothing roller, its clothing tips being in the removal position from those of the first clothing roller.
  • the negative pressure from the downstream screening drum continues through a fiber transport channel to the second clothing roller. After passing through the separation opening, the fiber material detaches from the second clothing roller due to the supply air entering through an opening in the housing and the separation opening and reaches the screening drum.
  • a clothing roller is assigned to the first and the second clothing roller.
  • the third clothing roller has the same diameter as the first clothing roller and rotates counterclockwise like this, but at a lower speed.
  • the clothing tips of the first and third garni door roller are in carding position to each other.
  • the third clothing roller is enclosed in a housing which is interrupted by a separating opening with a separating edge.
  • the second clothing roller works spatially directly with the first clothing roller. It has been shown that the suction air flow, which takes the fiber material from the second clothing roller, has a disadvantageous effect on the first clothing roller. In particular, it is disturbing that this suction air flow acts in the space between the first clothing roller and the housing around the first clothing roller and thereby impairs the fiber guidance.
  • a further disadvantage is that the suction air flow, together with the good fiber flakes detached from the second clothing roller, also takes along contaminants from the separation opening on the second clothing roller via the supply air from the outside.
  • the suction air flow from the screen drum adversely affects the separation openings on the first and second clothing rollers.
  • Another disadvantage is that the fiber material in the transition immediately from the first to the second clothing roller can only be resolved by particularly high speeds, which is structurally complex, in particular limited by the so-called critical bending speed and the roll width. If the fiber material is too little dissolved by significantly lower speeds, the cleaning effect of the second clothing roller is too low overall.
  • the invention is therefore based on the object of creating a device of the type described at the outset which avoids the disadvantages mentioned, which in particular permits more uniform fiber guidance and permits improved cleaning of the fiber material.
  • the interposition of the third clothing roller ensures that the first and second clothing rollers are spatially separated from one another are. It is essential that the three clothing rollers are connected in series, ie the second clothing roller interacts directly only with the third, but not with the first clothing roller. In this way, the second clothing roller only acts as a removal and opening roller with respect to the third and third clothing rollers only with respect to the first clothing roller.
  • the spatial distance between the second clothing roller and the first clothing roller as a result of the third clothing roller (intermediate roller) has the advantage that influences in terms of ventilation are avoided.
  • the third clothing roller acts as a take-off and opening roller with the first clothing roller, that is, that the clothing tips of the first and third clothing rollers are not in carding position
  • the fiber material is additionally dissolved or stretched , so that the cleaning effect is improved by the second clothing roller.
  • the intermediate roller thus has a double advantage, namely avoiding disruptive air currents on the first clothing roller and improving the fiber material resolution, so that an overall more uniform fiber material guidance and improved cleaning of the fiber material is achieved.
  • a further improvement in the fiber flow is achieved in that the additional stretching on the third clothing roller makes the fiber occupancy on the second clothing roller more uniform; uneven spots in the fiber mat are stretched (pulled apart) by the second clothing roller.
  • the direction of rotation of the third clothing roller is preferably opposite to the direction of rotation of the first and second clothing rollers. Because the material flow to the second clothing roller runs above the third clothing roller, there is again a stronger ventilation separation between the separation openings on the first and second clothing rollers. These two separation openings are ideally decoupled.
  • the third clothing roller is expediently enclosed by a housing without separation openings and separation edges.
  • the peripheral speed on the third clothing roller is preferably greater than on the first clothing roller. This also dissolves (stretches) the fiber material, which improves subsequent cleaning on the second clothing roller.
  • the peripheral speed on the second clothing roller is advantageously greater than on the third clothing roller.
  • the peripheral speed on the second clothing roller is lower than in the known case due to the activation of the third clothing roller (intermediate roller), which results in design advantages.
  • the second clothing roller is expediently a device which separates the fibers from the transport air, for. B. sieve drum, dedusting machine or the like, connected downstream, the fiber material is fed by means of an air stream through a transport line.
  • the second clothing roller is preferably followed by a fiber transport line with a material transport fan.
  • An air intake slot is preferably provided in the vicinity of the fiber delivery point of the second clothing roller.
  • suction of the transport air is achieved at a spatial distance from the separating edge and from the separating opening of the second clothing roller, so that not in un Contaminated contaminants are sucked in desirably.
  • the suction air flow for the fiber material is separated from the flow of the contamination (trash), so that no trash is sucked off with the fiber flakes.
  • the contaminants expediently fall out by centrifugal and gravity.
  • the diameter of the second clothing roller and the diameter of the third clothing roller are expediently the same or almost the same. This improves the so-called critical speed of the second clothing roller.
  • the common cover above the second clothing roller and the third clothing roller as a whole can preferably be moved away from the clothing rollers and moved back again.
  • the device for opening and cleaning is preceded by a fiber feed device which has an upper reserve shaft and a lower feed shaft, from which the fiber material is fed to the feed device by a transfer device.
  • the fiber material to be cleaned which is in particular cotton, is supplied in flake form to the cleaning device arranged in a closed housing 1. This takes place, for example, through a filling chute (not shown).
  • the cotton wool is fed by means of a dining table 2 and a feed roller 3 with clamping of a first clothing roller 4, which is rotatably mounted in the housing 1 and rotates counterclockwise (arrow A).
  • the clothing roller 4 is followed by a third clothing roller 5 and a second, small clothing roller 6.
  • the set rollers 4, 5 and 6 are covered with a sawtooth set.
  • Set roller 4 has a diameter of about 360 to 460 mm, z. B. 410 mm and a peripheral speed of about 15 to 21 m / sec., Z. B.
  • Clothing roller 5 has a diameter of about 135 to 215 mm, z. B. 175 mm and a peripheral speed of about 19 to 25 m / sec., Z. B. m / sec. and clothing roller 6 has a diameter of about 70 to 130 mm, z. B. 100 mm and a peripheral speed of about 23 to 30 m / sec., Z. B. 26.5 m / sec.
  • the clothing rollers 4, 5 and 6 are enclosed by the housing 1 or housing parts 17 to 25.
  • the clothing roller 4 is thus in a closed housing, which leaves a separating opening 7 for the exit of fiber impurities, the larger of which is adapted or adaptable to the respective separation stage.
  • the separating opening 7 is a separating edge 8, for. B. assigned a knife, which is suitably adjustably attached to the housing part 1a.
  • the separating opening 7 is connected to the outside air through the opening 26 in the housing 1.
  • the second clothing roller 6, which is smaller in diameter than the first clothing roller 4 and the third clothing roller 5, rotates at a higher speed than the clothing rollers 4 and 5, with its clothing tips 6a, as indicated, stand in the removal position for the clothing tips 5a of the third clothing roller 5.
  • the clothing roller 6 can therefore be referred to in terms of its effect on the fiber material as a removal and opening roller.
  • the clothing tips 5a of the clothing roller 5 are, as indicated, in the removal position from the clothing tips 4a of the first clothing roller 4.
  • the clothing roller 6 can be connected via a fiber transport line 14 to a sieve drum (not shown).
  • the fiber material is transported pneumatically by the air flow 16.
  • the screen drum is connected to a suction device (not shown) in order to generate a vacuum inside.
  • the negative pressure continues via the fiber transport line 14 to the clothing roller 6.
  • the mode of operation is as follows: The wadding consisting of fiber flakes is fed from the feed roller 3 with clamping of the first clothing roller 4, which combs the fiber material and takes tufts of fibers on its clothing.
  • the clothing roller 4 passes the separating opening 7 with separating edge 8
  • short fibers and coarse impurities are thrown out of the fiber material by centrifugal force according to the circumferential speed and curvature of this roller and the size of the separating opening 7 adapted to this first separation stage.
  • After passing through the separating opening 7 get into a dirt chamber 9 in the housing 1.
  • the fiber material pre-cleaned in this way is removed from the first clothing roller 4 by the clothing tips of the third clothing roller 5, whereby it is further dissolved.
  • the fiber material is then passed through the clothing tips of the second clothing roller 6 removed from the third clothing roller 5, wherein it is further dissolved and is guided past the separation opening 10 with separation edge 11. Since, in the second clothing roller 6, as explained above, the centrifugal force generated is greater than that of the first clothing roller 4, the finer dirt and dust particles contained in the fiber material are now separated from the separation opening 10.
  • the separation of these finer impurities from the fiber material is promoted by the dissolution of the fiber material in individual fibers or at least very fine fiber flakes by means of the clothing roller 6.
  • the impurities and fiber parts separated out at the separating openings 7 and 10 are expediently sucked off through pipes 12 and 13, respectively. This can be done continuously or discontinuously.
  • the fiber material After passing through the separating opening 10, the fiber material detaches from the second clothing roller 6 due to the supply air entering via the suction slot 15 and the centrifugal force and passes through the fiber transport channel 14 to the screening drum. Fine and very fine impurities, such as dust and fiber fragments, pass through the perforated jacket of the rotating sieve drum and are drawn off by the suction air flow, while the fibers are deposited on the sieve drum and form a nonwoven fabric there, which is detached from the sieve drum and fed to further processing becomes.
  • Fine and very fine impurities such as dust and fiber fragments
  • the cotton is fed to the first clothing roller 4 by means of two feed rollers 3a, 3b (direction of rotation see arrows E, F).
  • Two separation openings 7 and 7a with associated separation edges 8 and 8a are arranged below the clothing roller 4.
  • the second clothing roller 6 could also be assigned a further separation opening 10a with a separation edge 11a (not shown).
  • the clothing roller 6 is via the fiber transport line 14 to a downstream dedusting machine 27, for. B. TRÜTZSCHLER DUSTEX DX.
  • the fiber material is separated from the dust air on a fixed screen surface 28.
  • the fiber transport line 14 opens on the suction side of a fan 29.
  • a fiber transport line 30 extends from the blower side of the fan 29.
  • the diameter of the second clothing roller 6 and the diameter of the third clothing roller 5 are the same.
  • the centrifugal force on the second clothing roller 6 is greater than the centrifugal force on the first clothing roller 4.
  • the peripheral speed on the second clothing roller 6 is greater than the peripheral speed on the third clothing roller 5.
  • the common cover 37 above the first clothing roller 4, second clothing roller 6 and third clothing roller 5 is mounted in the pivot bearing 38 and can be moved away and back as a whole.
  • FIG. 4 shows the cleaning device arranged in the housing 1, which is preceded by a fiber feeding device 31 which has an upper reserve shaft 32 and a lower feed shaft 33.
  • a slow-moving feed roller 34 and a high-speed opening roller 35 are arranged between the reserve shaft 32 and the feed shaft 33. From the lower end of the feed shaft 33, the fiber material is through a transfer 36, z. B. a conveyor belt, the feed rollers 3a, 3b of the cleaning device.
  • Another advantage of the third clothing roller 5 is that the fiber material is accelerated from the first clothing roller 4 to the second clothing roller 6 via an intermediate stage; there is no abrupt acceleration, but acceleration that is gentle on the fiber material.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

Bei einer Vorrichtung zum Ausscheiden von Verunreinigungen aus Fasergut, insbesondere Baumwolle, mit wenigstens zwei einer Zuführeinrichtung nachgeordneten Garniturwalzen, sind wenigstens zwei Garniturwalzen (4,6) jeweils mindestens einer Abscheidkante (8) für Verunreinigungen mit zugehöriger Abscheidöffnung (7) zugeordnet und sind die Fliehkräfte am Umfang der zweiten Garniturwalze (6) größer als an der ersten Garniturwalze (4).In the case of a device for separating impurities from fiber material, in particular cotton, with at least two clothing rollers arranged downstream of a feed device, at least two clothing rollers (4, 6) are each assigned at least one separation edge (8) for impurities with an associated separation opening (7) and the centrifugal forces on the circumference of the second clothing roller (6) larger than on the first clothing roller (4).

Um eine gleichmäßigere Faserführung zu ermöglichen und eine verbesserte Ausreinigung des Fasermaterials zu erreichen, ist zwischen der ersten Garniturwalze und der zweiten Garniturwalze eine dritte Garniturwalze (5) angeordnet, sind die drei Garniturwalzen hintereinandergeschaltet und arbeitet die dritte Garniturwalze mit der ersten Garniturwalze und die zweite Garniturwalze mit der dritten Garniturwalze jeweils als Abnahme- und Auflösewalze zusammen.

Figure imgaf001
In order to enable a more even fiber guidance and to achieve an improved cleaning of the fiber material, a third clothing roller (5) is arranged between the first clothing roller and the second clothing roller, the three clothing rollers are connected in series and the third clothing roller works with the first clothing roller and the second clothing roller together with the third clothing roller as a take-off and opening roller.
Figure imgaf001

Description

Die Erfindung betrifft eine Vorrichtung zum Öffnen und Reinigen von Faser­gut, insbesondere Baumwolle, mit wenigstens zwei einer Zuführeinrichtung nachgeordneten Garniturwalzen, bei der wenigstens zwei Garniturwalzen je­weils mindestens eine Abscheidkante für Verunreinigungen mit zugehöriger Abscheidöffnung zugeordnet sind und bei der die Fliehkräfte am Umfang der zweiten Garniturwalze größer sind als bei der ersten Garniturwalze.The invention relates to a device for opening and cleaning fiber material, in particular cotton, with at least two clothing rollers arranged downstream of a feed device, in which at least two clothing rollers are each assigned at least one separation edge for impurities with an associated separation opening and in which the centrifugal forces on the circumference of the second clothing roller are greater than with the first clothing roller.

Bei einer bekannten Vorrichtung (DE-OS 27 12 650) ist nach einer ersten Ausführungsform (Fig. 1) eine erste Garniturwalze vorgesehen, der eine zweite Garniturwalze nachgeschaltet ist. Die Drehrichtung der beiden Walzen ist entgegengesetzt. Die gegenüber der ersten Garniturwalze im Durchmesser kleinere zweite Garniturwalze läuft mit einer wesentlich höheren Drehzahl als die erste Garniturwalze um, wobei ihre Garniturspitzen in Abnahmestel­lung zu denen der ersten Garniturwalze stehen. Der Unterdruck von der nachgeschalteten Siebtrommel setzt sich über einen Fasertransportkanal bis zur zweiten Garniturwalze fort. Nach Passieren der Abscheidöffnung löst sich das Fasermaterial, bedingt durch die über eine Öffnung im Gehäuse und die Abscheidöffnung eintretende Zuluft, von der zweiten Garniturwalze ab und gelangt zur Siebtrommel. Nach einer zweiten Ausführungsform (Fig.2), ist der ersten und der zweiten Garniturwalze eine Garniturwalze zugeordnet. Die dritte Garniturwalze hat den gleichen Durchmesser wie die erste Gar­niturwalze und läuft wie diese entgegen dem Uhrzeigersinn um, jedoch mit niedrigerer Drehzahl. Die Garniturspitzen der ersten und der dritten Garni­ turwalze stehen in Kardierstellung zueinander. Die dritte Garniturwalze ist von einem Gehäuse umschlossen, das durch eine Abscheidöffnung mit Abscheidkante unterbrochen ist. In beiden Ausführungsformen arbeitet die zweite Garniturwalze räumlich unmittelbar mit der ersten Garniturwalze zusammen. Es hat sich gezeigt, daß der Absaugluftstrom, der das Faserma­terial von der zweiten Garniturwalze abnimmt, in nachteiliger Weise auf die erste Garniturwalze rückwirkt. Insbesondere stört, daß dieser Absaug­luftstrom in den Zwischenraum zwischen der ersten Garniturwalze und dem Gehäuse um die erste Garniturwalze hineinwirkt und dadurch die Faserführung beeinträchtigt. Nachteilhaft ist weiterhin, daß über die Zuluft von außen der Absaugluftstrom zusammen mit den von der zweiten Garnitur­walze abgelösten Gutfaserflocken auch Verunreinigungen aus der Abscheidöff­nung an der zweiten Garniturwalze mitnimmt. Der Saugluftstrom von der Siebtrommel wirkt nachteilig auf die Abscheidöffnungen an der ersten und zweiten Garniturwalze. Ein weiterer Nachteil besteht darin, daß das Fasermaterial beim Übergang unmittelbar bei der ersten auf die zweite Garniturwalze nur durch besonders hohe Drehzahlen aufgelöst werden kann, was konstruktiv aufwendig ist, insbesondere durch die sog. biegekritische Drehzahl und die Walzenbreite begrenzt ist. Sofern das Fasermaterial durch wesentlich geringere Drehzahlen zu wenig aufgelöst wird, ist die Reinigungs­wirkung der zweiten Garniturwalze insgesamt zu gering.In a known device (DE-OS 27 12 650), a first clothing roller is provided according to a first embodiment (FIG. 1), which is followed by a second clothing roller. The direction of rotation of the two rollers is opposite. The second clothing roller, which is smaller in diameter than the first clothing roller, rotates at a much higher speed than the first clothing roller, its clothing tips being in the removal position from those of the first clothing roller. The negative pressure from the downstream screening drum continues through a fiber transport channel to the second clothing roller. After passing through the separation opening, the fiber material detaches from the second clothing roller due to the supply air entering through an opening in the housing and the separation opening and reaches the screening drum. According to a second embodiment (FIG. 2), a clothing roller is assigned to the first and the second clothing roller. The third clothing roller has the same diameter as the first clothing roller and rotates counterclockwise like this, but at a lower speed. The clothing tips of the first and third garni door roller are in carding position to each other. The third clothing roller is enclosed in a housing which is interrupted by a separating opening with a separating edge. In both embodiments, the second clothing roller works spatially directly with the first clothing roller. It has been shown that the suction air flow, which takes the fiber material from the second clothing roller, has a disadvantageous effect on the first clothing roller. In particular, it is disturbing that this suction air flow acts in the space between the first clothing roller and the housing around the first clothing roller and thereby impairs the fiber guidance. A further disadvantage is that the suction air flow, together with the good fiber flakes detached from the second clothing roller, also takes along contaminants from the separation opening on the second clothing roller via the supply air from the outside. The suction air flow from the screen drum adversely affects the separation openings on the first and second clothing rollers. Another disadvantage is that the fiber material in the transition immediately from the first to the second clothing roller can only be resolved by particularly high speeds, which is structurally complex, in particular limited by the so-called critical bending speed and the roll width. If the fiber material is too little dissolved by significantly lower speeds, the cleaning effect of the second clothing roller is too low overall.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs beschreibenen Art zu schaffen, die die genannten Nachteile ver­meidet, die insbesondere eine gleichmäßigere Faserführung gestattet und eine verbesserte Ausreinigung des Fasermaterials erlaubt.The invention is therefore based on the object of creating a device of the type described at the outset which avoids the disadvantages mentioned, which in particular permits more uniform fiber guidance and permits improved cleaning of the fiber material.

Die Lösung dieser Aufgabe erfolgt durch die kennzeichnenden Merkmale des Anspruchs 1.This object is achieved by the characterizing features of claim 1.

Durch die Zwischenschaltung der dritten Garniturwalze wird erreicht, daß die erste und die zweite Garniturwalze räumlich voneinander entfernt sind. Wesentlich ist, daß die drei Garniturwalzen hintereinander geschaltet sind, d.h. die zweite Garniturwalze wirkt unmittelbar nur mit der dritten, nicht jedoch mit der ersten Garniturwalze zusammen. Auf diese Weise wirkt die zweite Garniturwalze nur in bezug auf die dritte und die dritte Garniturwalze nur in bezug auf die erste Garniturwalze als Abnahme- und Auflösewalze. Der räumliche Abstand der zweiten von der ersten Gar­niturwalze infolge der dritten Garniturwalze (Zwischenwalze) hat den Vor­teil, daß lufttechnisch störende Einflüsse vermieden werden. Dadurch, daß die dritte Garniturwalze (Zwischenwalze) als Abnahme- und Auflöse­walze mit der ersten Garniturwalze zusammenwirkt, d. h., daß die Garni­turspitzen der ersten und der dritten Garniturwalze nicht in Kardierstellung zueinanderstehen, entsteht der weitere Vorteil, daß das Fasermaterial zusätzlich aufgelöst bzw. verstreckt wird, so daß die Reinigungswirkung durch die zweite Garniturwalze verbessert ist. Die Zwischenwalze (dritte Garniturwalze) hat somit einen Doppelvorteil, nämlich Vermeidung stören­der Luftströmungen auf die erste Garniturwalze und Verbesserung der Fasermaterialauflösung, so daß eine insgesamt gleichmäßigere Fasermate­rialführung und eine verbesserte Ausreinigung des Fasermaterials erreicht wird. Eine weitere Verbesserung des Faserstroms wird dadurch erreicht, daß durch die zusätzliche Verstreckung auf der dritten Garniturwalze die Faserbelegung auf der zweiten Garniturwalze vergleichmäßigt ist; ungleich­mäßige Stellen in der Fasermatte werden durch die zweite Garniturwalze verstreckt (auseinandergezogen).The interposition of the third clothing roller ensures that the first and second clothing rollers are spatially separated from one another are. It is essential that the three clothing rollers are connected in series, ie the second clothing roller interacts directly only with the third, but not with the first clothing roller. In this way, the second clothing roller only acts as a removal and opening roller with respect to the third and third clothing rollers only with respect to the first clothing roller. The spatial distance between the second clothing roller and the first clothing roller as a result of the third clothing roller (intermediate roller) has the advantage that influences in terms of ventilation are avoided. The fact that the third clothing roller (intermediate roller) acts as a take-off and opening roller with the first clothing roller, that is, that the clothing tips of the first and third clothing rollers are not in carding position, there is the further advantage that the fiber material is additionally dissolved or stretched , so that the cleaning effect is improved by the second clothing roller. The intermediate roller (third clothing roller) thus has a double advantage, namely avoiding disruptive air currents on the first clothing roller and improving the fiber material resolution, so that an overall more uniform fiber material guidance and improved cleaning of the fiber material is achieved. A further improvement in the fiber flow is achieved in that the additional stretching on the third clothing roller makes the fiber occupancy on the second clothing roller more uniform; uneven spots in the fiber mat are stretched (pulled apart) by the second clothing roller.

Je weiter örtlich die Abscheidöffnungen (Ausscheidestellungen) für beide Garniturwalzen (erste und dritte Garniturwalze) auseinanderliegen, desto besser ist die Trennung der Lufthaushalte und der Luftströmungen im Be­reich der Ausscheidestellen. Dadurch haben aufeinanderfolgende Abscheid­öffnungen keine Beeinflussung aufeinander in dieser Beziehung. Absaugluft­strom für das Fasermaterial und der Strom der ausgeschiedenen Verunrei­nigungen sind getrennt. Auch die Ausscheide- und Flugräume für den Ab­fall im Bereich unterhalb der beiden Abscheidöffnungen sind weit vonein­ ander entfernt. Jede Abscheidöffnung erzeugt im Bereich darunter Tur­bulenzen, und zur Ausscheidung der Abfälle aus diesen turbulenten Strömun­gen braucht man große Beruhingungsräume. Auch diese werden größer ausge­führt und sind weiter voneinander entfernt. Somit kann der Abfallflug aus der Abscheidöffnung an der zweiten Garniturwalze schwerer zu der Abscheidöffnung an der ersten Garniturwalze gelangen und auch schwerer in die Saugzonen, die an jeder Abscheidöffnung auch vorhanden sind.The farther apart the separation openings (separation positions) for both clothing rollers (first and third clothing rollers) are, the better the separation of the air balance and the air flows in the area of the separation points. As a result, successive separation openings have no influence on one another in this respect. Extraction air flow for the fiber material and the flow of the separated impurities are separate. The separation and flight areas for waste in the area below the two separation openings are also far apart other removed. Each separation opening creates turbulence in the area below, and large damming spaces are required to separate the waste from these turbulent flows. These are also larger and are further apart. Thus, the waste flight from the separation opening on the second clothing roller is more difficult to reach the separation opening on the first clothing roller and also more difficult into the suction zones which are also present at each separation opening.

Vorzugsweise ist die Drehrichtung der dritten Garniturwalze entgegenge­setzt zur Drehrichtung der ersten und zweiten Garniturwalze gerichtet. Dadurch, daß der Materialfluß zur zweiten Garniturwalze oberhalb der dritten Garniturwalze verläuft, ist nochmals eine stärkere lufttechnische Trennung zwischen den Abscheidöffnungen an der ersten und zweiten Gar­niturwalze gegeben. Diese beiden Abscheidöffnungen werden ideal entkop­pelt. Zweckmäßig ist die dritte Garniturwalze von einem Gehäuse ohne Abscheidöffnungen und Abscheidkanten umschlossen. Bevorzugt ist die Um­fangsgeschwindigkeit an der dritten Garniturwalze größer als an der ersten Garniturwalze. Dadurch wird das Fasermaterial zusätzlich aufgelöst (ver­streckt), wodurch die nachfolgende Reinigung auf der zweiten Garnitur­walze verbessert wird. Vorteilhaft ist die Umfangsgeschwindigkeit an der zweiten Garniturwalze größer als an der dritten Garniturwalze. Die Um­fangsgeschwindigkeit an der zweiten Garniturwalze ist durch die Einschal­tung der dritten Garniturwalze (Zwischenwalze) geringer als im bekannten Fall, wodurch sich konstruktiv Vorteile ergeben. Zweckmäßig ist der zwei­ten Garniturwalze eine Einrichtung, die die Fasern von der Transportluft trennt, z. B. Siebtrommel, Entstaubungsmaschine o. dgl., nachgeschaltet, der das Fasergut, mittels eines Luftstroms durch eine Transportleitung zugeführt wird. Vorzugsweise ist der zweiten Garniturwalze eine Faser­transportleitung mit einem Materialtransportventilator nachgeschaltet. Bevorzugt ist in der Nähe der Faserabgabestelle der zweiten Garniturwalze ein Luftansaugschlitz vorhanden. Dadurch wird eine Ansaugung der Trans­portluft in einem räumlichen Abstand zu der Abscheidkante und zu der Abscheidöffnung der zweiten Garniturwalze erreicht, so daß nicht in un­ erwünschter Weise aus der Abscheidöffnung abgeschiedene Verunreinigungen angesaugt werden. Der Absaugluftstrom für das Fasermaterial ist von dem Strom der Verunreinigung (Trash) getrennt, so daß mit den Faserflocken kein Trash abgesaugt wird. Die Verunreinigungen fallen zweckmäßig durch Flieh- und Schwerkraft heraus. Zweckmäßig sind der Durchmesser der zweiten Garniturwalze und der Durchmesser der dritten Garniturwalze gleich oder nahezu gleich. Dadurch wird die sogenannte biegekritische Drehzahl der zweiten Garniturwalze verbessert. Vorzugsweise ist die ge­meinsame Abdeckung oberhalb der zweiten Garniturwalze und der dritten Garniturwalze als Ganzes von den Garniturwalzen wegbewegbar und wieder zurückbewegbar. Dadurch ist die Herstellung der Abdeckung vereinfacht und die Zugänglichkeit zu den Garniturwalzen verbessert. Nach einer weite­ren vorteilhaften Ausführungsform ist der Vorrichtung zum Öffnen und Reinigen eine Faserspeisevorrichtung vorgeschaltet, die einen oberen Re­serveschacht und einen unteren Speiseschacht aufweist, von dem das Fa­sergut durch eine Überführungseinrichtung der Speiseeinrichtung zugeführt wird.The direction of rotation of the third clothing roller is preferably opposite to the direction of rotation of the first and second clothing rollers. Because the material flow to the second clothing roller runs above the third clothing roller, there is again a stronger ventilation separation between the separation openings on the first and second clothing rollers. These two separation openings are ideally decoupled. The third clothing roller is expediently enclosed by a housing without separation openings and separation edges. The peripheral speed on the third clothing roller is preferably greater than on the first clothing roller. This also dissolves (stretches) the fiber material, which improves subsequent cleaning on the second clothing roller. The peripheral speed on the second clothing roller is advantageously greater than on the third clothing roller. The peripheral speed on the second clothing roller is lower than in the known case due to the activation of the third clothing roller (intermediate roller), which results in design advantages. The second clothing roller is expediently a device which separates the fibers from the transport air, for. B. sieve drum, dedusting machine or the like, connected downstream, the fiber material is fed by means of an air stream through a transport line. The second clothing roller is preferably followed by a fiber transport line with a material transport fan. An air intake slot is preferably provided in the vicinity of the fiber delivery point of the second clothing roller. As a result, suction of the transport air is achieved at a spatial distance from the separating edge and from the separating opening of the second clothing roller, so that not in un Contaminated contaminants are sucked in desirably. The suction air flow for the fiber material is separated from the flow of the contamination (trash), so that no trash is sucked off with the fiber flakes. The contaminants expediently fall out by centrifugal and gravity. The diameter of the second clothing roller and the diameter of the third clothing roller are expediently the same or almost the same. This improves the so-called critical speed of the second clothing roller. The common cover above the second clothing roller and the third clothing roller as a whole can preferably be moved away from the clothing rollers and moved back again. This simplifies the manufacture of the cover and improves accessibility to the clothing rollers. According to a further advantageous embodiment, the device for opening and cleaning is preceded by a fiber feed device which has an upper reserve shaft and a lower feed shaft, from which the fiber material is fed to the feed device by a transfer device.

Die Erfindung wird nachfolged anhand von zeichnerisch dargestellten Aus­führungsbeispielen näher erläutert.The invention is explained in more detail below on the basis of exemplary embodiments illustrated in the drawings.

Es zeigt:

  • Fig. 1 die erfindungsgemäße Vorrichtung mit Speisewalze und Speisetisch in Seitenansicht,
  • Fig. 2 eine Vorrichtung wie Fig. 1 mit zwei Speisewalzen, zwei Abscheidöffnungen mit Abscheidkanten an der ersten Garniturwalze und nachgeschalteter Entstau­bungsmaschine,
  • Fig. 3 eine Ausführungsform mit gleichem Durchmesser der zweiten und dritten Garniturwalze und
  • Fig. 4 die Vorrichtung mit vorgeschalteter Faserspeiseeinrich­tung und Überführungsvorrichtung.
It shows:
  • 1 shows the device according to the invention with feed roller and dining table in side view,
  • 2 shows a device like FIG. 1 with two feed rollers, two separating openings with separating edges on the first clothing roller and a dedusting machine connected downstream,
  • Fig. 3 shows an embodiment with the same diameter of the second and third clothing roller and
  • Fig. 4 shows the device with upstream fiber feeding device and transfer device.

Der in einem geschlossenen Gehäuse 1 angeordneten Reinigungsvorrichtung wird das zu reinigende Fasermaterial, das insbesondere Baumwolle ist, in Flockenform zugeführt. Dies erfolgt beispielsweise durch einen (nicht dargestellten) Füllschacht. Die Watte wird mittels eines Speisetisches 2 und einer Speisewalze 3 unter Klemmung einer ersten Garniturwalze 4 zuge­führt, die im Gehäuse 1 drehbar gelagert ist und entgegen dem Uhrzeigersinn (Pfeil A) umläuft. Der Garniturwalze 4 sind eine dritte Garniturwalze 5 und eine zweite, kleine Garniturwalze 6 nachgeordnet. Die Garniturwalzen 4, 5 und 6 sind mit einer Sägezahngarnitur bezogen. Garniturwalze 4 hat einen Durchmesser von ca. 360 bis 460 mm, z. B. 410 mm und eine Um­fangsgeschwindigkeit von ca. 15 bis 21 m/sec., z. B. 18 m/sec., Garnitur­walze 5 hat einen Durchmesser von ca. 135 bis 215 mm, z. B. 175 mm und eine Umfangsgeschwindigkeit von ca. 19 bis 25 m/sec., z. B. m/sec. und Garniturwalze 6 hat einen Durchmesser von ca. 70 bis 130 mm, z. B. 100 mm und eine Umfangsgeschwindigkeit von ca. 23 bis 30 m/sec., z. B. 26.5 m/sec.The fiber material to be cleaned, which is in particular cotton, is supplied in flake form to the cleaning device arranged in a closed housing 1. This takes place, for example, through a filling chute (not shown). The cotton wool is fed by means of a dining table 2 and a feed roller 3 with clamping of a first clothing roller 4, which is rotatably mounted in the housing 1 and rotates counterclockwise (arrow A). The clothing roller 4 is followed by a third clothing roller 5 and a second, small clothing roller 6. The set rollers 4, 5 and 6 are covered with a sawtooth set. Set roller 4 has a diameter of about 360 to 460 mm, z. B. 410 mm and a peripheral speed of about 15 to 21 m / sec., Z. B. 18 m / sec., Clothing roller 5 has a diameter of about 135 to 215 mm, z. B. 175 mm and a peripheral speed of about 19 to 25 m / sec., Z. B. m / sec. and clothing roller 6 has a diameter of about 70 to 130 mm, z. B. 100 mm and a peripheral speed of about 23 to 30 m / sec., Z. B. 26.5 m / sec.

Die Garniturwalzen 4, 5 und 6 werden vom Gehäuse 1 bzw. Gehäuseteilen 17 bis 25 umschlossen. Die Garniturwalze 4 befindet sich damit in einem geschlossenen Gehäuse, das eine Abscheidöffnung 7 für den Austritt von Faserverunreinigungen freiläßt, deren Größere der jeweiligen Ausscheidungs­stufe angepaßt bzw. anpaßbar ist. Der Abscheidöffnung 7 ist eine Abscheid­kante 8, z. B. ein Messer, zugeordnet, das zweckmäßig einstellbar an dem Gehäuseteil 1a befestigt ist. Durch die Öffnung 26 im Gehäuse 1 steht die Abscheidöffnung 7 mit der Außenluft in Verbindung.The clothing rollers 4, 5 and 6 are enclosed by the housing 1 or housing parts 17 to 25. The clothing roller 4 is thus in a closed housing, which leaves a separating opening 7 for the exit of fiber impurities, the larger of which is adapted or adaptable to the respective separation stage. The separating opening 7 is a separating edge 8, for. B. assigned a knife, which is suitably adjustably attached to the housing part 1a. The separating opening 7 is connected to the outside air through the opening 26 in the housing 1.

Die gegenüber der ersten Garniturwalze 4 und der dritten Garniturwalze 5 im Durchmesser kleinere zweite Garniturwalze 6 läuft mit einer höheren Drehzahl als die Garniturwalzen 4 und 5 um, wobei ihre Garniturspitzen 6a, wie angedeutet, in Abnahmestellung zu den Garniturspitzen 5a der dritten Garniturwalze 5 stehen. Die Garniturwalze 6 kann daher von ihrer Wirkung auf das Fasermaterial her als Abnahme- und Auflösewalze bezeichnet werden. Die Garniturspitzen 5a der Garniturwalze 5 stehen, wie angedeutet, in Abnahmestellung zu den Garniturspitzen 4a der ersten Garniturwalze 4. Stehen beispielsweise die Durchmesser der Garniturwalze 4 und der Garni­turwalze 5 und die Durchmesser der Garniturwalze 5 und der Garniturwalze 6 in einem Verhältnis von jeweils 2 : 1, so entstehen bei der mit wesentlich höherer Drehzahl als die Garniturwalze 4 rotierenden Garniturwalze 6 auf­grund der höheren Winkelgeschwindigkeit stärkerer Beschleunigungen und damit Fliehkräfte als bei der ersten Garniturwalze 4. Die auf das Faserma­terial einwirkenden Fliehkräfte steigen somit von Garniturwalze zu Garnitur­walze an. Die Garniturwalze 6 kann über eine Fasertransportleitung 14 an eine (nicht dargestellte) Siebtrommel angeschlossen sein. Das Faserma­terial wird durch den Luftstrom 16 pneumatisch transportiert. Die Sieb­trommel ist zur Erzeugung eines Unterdrucks in ihrem Inneren an eine Saugvorrichtung (nicht gezeigt) angeschlossen. Der Unterdruck setzt sich über die Fasertransportleitung 14 bis zur Garniturwalze 6 hinfort.The second clothing roller 6, which is smaller in diameter than the first clothing roller 4 and the third clothing roller 5, rotates at a higher speed than the clothing rollers 4 and 5, with its clothing tips 6a, as indicated, stand in the removal position for the clothing tips 5a of the third clothing roller 5. The clothing roller 6 can therefore be referred to in terms of its effect on the fiber material as a removal and opening roller. The clothing tips 5a of the clothing roller 5 are, as indicated, in the removal position from the clothing tips 4a of the first clothing roller 4. Are the diameters of the clothing roller 4 and the clothing roller 5 and the diameters of the clothing roller 5 and the clothing roller 6 in a ratio of 2: 1, this results in the clothing roller 6 rotating at a much higher speed than the clothing roller 4 due to the higher angular velocity, which means stronger accelerations and thus centrifugal forces than in the first clothing roller 4. The centrifugal forces acting on the fiber material thus increase from clothing roller to clothing roller. The clothing roller 6 can be connected via a fiber transport line 14 to a sieve drum (not shown). The fiber material is transported pneumatically by the air flow 16. The screen drum is connected to a suction device (not shown) in order to generate a vacuum inside. The negative pressure continues via the fiber transport line 14 to the clothing roller 6.

Die Funktionsweise ist folgende: Die aus Faserflocken bestehende Wickel­watte wird von der Speisewalze 3 unter Klemmung der ersten Garniturwal­ze 4 zugeführt, die das Fasermaterial durchkämmt und Faserbüschel auf ihrer Garnitur mitnimmt. Beim Vorbeilauf der Garniturwalze 4 an der Abscheidöffnung 7 mit Abscheidkante 8 werden, entsprechend der Umfangs­geschwindigkeit und Krümmung dieser Walze sowie der dieser ersten Aus­scheidungsstufe angepaßten Größe der Abscheidöffnung 7, Kurzfasern und grobe Verunreinigungen durch die Fliehkraft aus dem Fasermaterial heraus­geschleudert, die nach Passieren der Abscheidöffnung 7 in eine Schmutzkam­mer 9 im Gehäuse 1 gelangen. Das derart vorgereinigte Fasermaterial wird durch die Garniturspitzen der dritten Garniturwalze 5 von der ersten Garniturwalze 4 abgenommen, wobei es weiter aufgelöst wird. Anschließend wird das Fasermaterial durch die Garniturspitzen der zweiten Garniturwalze 6 von der dritten Garniturwalze 5 abgenommen, wobei es weiter aufgelöst wird und an der Abscheidöffnung 10 mit Abscheidkante 11 vorbeigeführt wird. Da bei der zweiten Garniturwalze 6, wie oben dargelegt, die er­zeugte Fliehkraft größer ist als bei der ersten Garniturwalze 4, werden demnach an der Abscheidöffnung 10 nun die im Fasermaterial enthaltenen feineren Schmutz- und Staubpartikel aus diesem ausgeschieden. Durch die Auflösung des Fasermaterials in Einzelfasern oder zumindest sehr feine Faserflocken mittels der Garniturwalze 6 wird die Trennung dieser feineren Verunreinigungen vom Fasermaterial begünstigt. Die an den Abscheidöffnun­gen 7 und 10 ausgeschiedenen Verunreinigungen und Faserteile werden zweckmäßig durch Rohrleitungen 12 bzw. 13 abgesaugt. Dies kann kontinuier­lich, oder auch diskontinuierlich erfolgen. Nach Passieren der Abscheidöff­nung 10 löst sich das Fasermaterial, bedingt durch die über den Ansaug­schlitz 15 eintretende Zuluft sowie die Fliehkraft, von der zweiten Garnitur­walze 6 ab und gelangt durch den Fasertransportkanal 14 zur Siebtrommel. Feine und feinste Verunreinigungen, wie Staub- und Faserfragmente, treten durch den perforierten Mantel der rotierenden Siebtrommel hindurch und werden vom Saugluftstrom abgezogen, während die Fasern sich auf der Siebtrommel ablagern und dort ein Faservlies bilden, das von der Siebtrom­mel abgelöst und der weiteren Verarbeitung zugeführt wird.The mode of operation is as follows: The wadding consisting of fiber flakes is fed from the feed roller 3 with clamping of the first clothing roller 4, which combs the fiber material and takes tufts of fibers on its clothing. When the clothing roller 4 passes the separating opening 7 with separating edge 8, short fibers and coarse impurities are thrown out of the fiber material by centrifugal force according to the circumferential speed and curvature of this roller and the size of the separating opening 7 adapted to this first separation stage. After passing through the separating opening 7 get into a dirt chamber 9 in the housing 1. The fiber material pre-cleaned in this way is removed from the first clothing roller 4 by the clothing tips of the third clothing roller 5, whereby it is further dissolved. The fiber material is then passed through the clothing tips of the second clothing roller 6 removed from the third clothing roller 5, wherein it is further dissolved and is guided past the separation opening 10 with separation edge 11. Since, in the second clothing roller 6, as explained above, the centrifugal force generated is greater than that of the first clothing roller 4, the finer dirt and dust particles contained in the fiber material are now separated from the separation opening 10. The separation of these finer impurities from the fiber material is promoted by the dissolution of the fiber material in individual fibers or at least very fine fiber flakes by means of the clothing roller 6. The impurities and fiber parts separated out at the separating openings 7 and 10 are expediently sucked off through pipes 12 and 13, respectively. This can be done continuously or discontinuously. After passing through the separating opening 10, the fiber material detaches from the second clothing roller 6 due to the supply air entering via the suction slot 15 and the centrifugal force and passes through the fiber transport channel 14 to the screening drum. Fine and very fine impurities, such as dust and fiber fragments, pass through the perforated jacket of the rotating sieve drum and are drawn off by the suction air flow, while the fibers are deposited on the sieve drum and form a nonwoven fabric there, which is detached from the sieve drum and fed to further processing becomes.

Nach Fig. 2 wird die Watte mittels zweier Einzugswalzen 3a, 3b (Drehrich­tung siehe Pfeile E, F) der ersten Garniturwalze 4 zugeführt. Unterhalb der Garniturwalze 4 sind zwei Abscheidöffnungen 7 und 7a mit zugehörigen Abscheidkanten 8 bzw. 8a angeordnet. Der zweiten Garniturwalze 6 könnte auch eine weitere Abscheidöffnung 10a mit Abscheidkante 11a (nicht ge­zeigt) zugeordnet sein. Die Garniturwalze 6 ist über die Fasertransportleitung 14 an eine nachgeschaltete Entstaubungsmaschine 27, z. B. TRÜTZSCHLER DUSTEX DX, angeschlossen. Das Fasermaterial wird an einer feststehenden Siebfläche 28 von der Staubluft getrennt. Die Fasertransportleitung 14 mündet an der Ansaugseite eines Ventilators 29. Von der Blasseite des Ventilators 29 geht eine Fasertransportleitung 30 ab.2, the cotton is fed to the first clothing roller 4 by means of two feed rollers 3a, 3b (direction of rotation see arrows E, F). Two separation openings 7 and 7a with associated separation edges 8 and 8a are arranged below the clothing roller 4. The second clothing roller 6 could also be assigned a further separation opening 10a with a separation edge 11a (not shown). The clothing roller 6 is via the fiber transport line 14 to a downstream dedusting machine 27, for. B. TRÜTZSCHLER DUSTEX DX. The fiber material is separated from the dust air on a fixed screen surface 28. The fiber transport line 14 opens on the suction side of a fan 29. A fiber transport line 30 extends from the blower side of the fan 29.

Nach Fig. 3 sind der Durchmesser der zweiten Garniturwalze 6 und der Durchmesser der dritten Garniturwalze 5 gleich. Die Fliehkraft an der zwieten Garniturwalze 6 ist größer als die Fliehkraft an der ersten Garni­turwalze 4. Die Umfangsgeschwindigkeit an der zweiten Garniturwalze 6 ist größer als die Umfangsgeschwindigkeit an der dritten Garniturwalze 5. Die gemeinsame Abdeckung 37 oberhalb der ersten Garniturwalze 4, zweiten Garniturwalze 6 und dritten Garniturwalze 5 ist im Drehlager 38 gelagert und als Ganzes weg- und wieder zurückbewegbar.3, the diameter of the second clothing roller 6 and the diameter of the third clothing roller 5 are the same. The centrifugal force on the second clothing roller 6 is greater than the centrifugal force on the first clothing roller 4. The peripheral speed on the second clothing roller 6 is greater than the peripheral speed on the third clothing roller 5. The common cover 37 above the first clothing roller 4, second clothing roller 6 and third clothing roller 5 is mounted in the pivot bearing 38 and can be moved away and back as a whole.

Fig. 4 zeigt die im Gehäuse 1 angeordnete Reinigungsvorrichtung, der eine Faserspeisevorrichtung 31 vorgeschaltet ist, die einen oberen Reserve­schacht 32 und einen unteren Speiseschacht 33 aufweist. Zwischen dem Reserveschacht 32 und dem Speiseschacht 33 sind eine langsamlaufende Einzugswalze 34 und eine schnellaufende Öffnerwalze 35 angeordnet. Von dem unteren Ende des Speiseschachtes 33 wird das Fasergut durch eine Überführung 36, z. B. ein Transportband, den Speisewalzen 3a, 3b der Reinigungsvorrichtung zugeführt.4 shows the cleaning device arranged in the housing 1, which is preceded by a fiber feeding device 31 which has an upper reserve shaft 32 and a lower feed shaft 33. A slow-moving feed roller 34 and a high-speed opening roller 35 are arranged between the reserve shaft 32 and the feed shaft 33. From the lower end of the feed shaft 33, the fiber material is through a transfer 36, z. B. a conveyor belt, the feed rollers 3a, 3b of the cleaning device.

Ein weitere Vorteil der dritten Garniturwalze 5 besteht darin, daß das Fasermaterial von der ersten Garniturwalze 4 zur zweiten Garniturwalze 6 über eine Zwischenstufe beschleunigt wird; es erfolgt keine abrupte, sondern eine fasermaterialschonende Beschleunigung.Another advantage of the third clothing roller 5 is that the fiber material is accelerated from the first clothing roller 4 to the second clothing roller 6 via an intermediate stage; there is no abrupt acceleration, but acceleration that is gentle on the fiber material.

Claims (13)

1) Vorrichtung zum Öffnen und Reinigen von Fasergut, insbesondere Baum­wolle, mit wenigstens zwei einer Zuführeinrichtung nachgeordneten Garniturwalzen, bei der wenigstens zwei Garniturwalzen jeweils min­destens eine Abscheidkante für Verunreinigungen mit zugehöriger Ab­scheidöffnung zugeordnet sind und bei der die Fliehkräfte am Umfang der zweiten Garniturwalze größer sind als der ersten Garniturwalze, dadurch gekennzeichnet, daß zwischen der ersten Garniturwalze (4) und der zweiten Garniturwalze (6) eine dritte Garniturwalze (5) ange­ordnet ist, daß die drei Garniturwalzen (4, 5, 6) hintereinandergeschal­tet sind und daß die dritte Garniturwalze (5) mit der ersten Garnitur­walze (4) und die zweite Garniturwalze (6) mit der dritten Garnitur­walze (5) jeweils als Abnahme- und Auflösewalze zusammenarbeitet.1) Device for opening and cleaning fiber material, in particular cotton, with at least two clothing rollers arranged downstream of a feed device, in which at least two clothing rollers are each assigned at least one separation edge for impurities with an associated separation opening and in which the centrifugal forces on the circumference of the second clothing roller are greater than of the first clothing roller, characterized in that a third clothing roller (5) is arranged between the first clothing roller (4) and the second clothing roller (6), that the three clothing rollers (4, 5, 6) are connected in series and that the third clothing roller ( 5) cooperates with the first clothing roller (4) and the second clothing roller (6) with the third clothing roller (5) as a take-off and opening roller. 2) Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Dreh­richtung (B) der dritten Garniturwalze (5) entgegengesetzt zur Dreh­richtung (A) der ersten Garniturwalze (4) und zur Drehrichtung (C) der zweiten Garniturwalze (6) ist.2) Device according to claim 1, characterized in that the direction of rotation (B) of the third clothing roller (5) is opposite to the direction of rotation (A) of the first clothing roller (4) and to the direction of rotation (C) of the second clothing roller (6). 3) Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die dritte Garniturwalze (5) von einem Gehäuse (20, 21) ohne Ab­scheidöffnungen und Abscheidkanten umschlossen ist.3) Device according to claim 1 or 2, characterized in that the third clothing roller (5) is enclosed by a housing (20, 21) without separating openings and separating edges. 4) Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeich­net, daß die Umfangsgeschwindigkeit der dritten Garniturwalze (5) größer als die Umfangsgeschwindigkeit der ersten Garniturwalze (4) ist.4) Device according to one of claims 1 to 3, characterized in that the peripheral speed of the third clothing roller (5) is greater than the peripheral speed of the first clothing roller (4). 5) Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeich­net, daß die Umfangsgeschwindigkeit an der zweiten Garniturwalze (6) größer als an der dritten Garniturwalze (5) ist.5) Device according to one of claims 1 to 4, characterized in that the peripheral speed on the second clothing roller (6) is greater than on the third clothing roller (5). 6) Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeich­net, daß der zweiten Garniturwalze (6) eine Einrichtung, die die Fa­sern von der Transportluft trennt, z. B. Siebtrommel, Entstaubungsma­schine (27) o. dgl. nachgeschaltet ist, der das Fasergut mittels eines Luftstromes (16) zugeführt wird.6) Device according to one of claims 1 to 5, characterized in that the second clothing roller (6) has a device which separates the fibers from the transport air, for. B. sieve drum, dedusting machine (27) or the like. Is connected downstream, the fiber material is supplied by means of an air stream (16). 7) Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeich­net, daß der zweiten Garniturwalze (6) eine Fasertransportleitung (14) mit einem Materialtransportventilator (29) nachgeschaltet ist.7) Device according to one of claims 1 to 6, characterized in that the second clothing roller (6) is followed by a fiber transport line (14) with a material transport fan (29). 8) Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeich­net, daß in der Nähe der Faserabgabestelle (14a) der zweiten Garni­turwalze (6) ein Luftansaugschlitz (15) vorhanden ist.8) Device according to one of claims 1 to 7, characterized in that in the vicinity of the fiber delivery point (14a) of the second clothing roller (6) there is an air suction slot (15). 9) Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeich­net, daß der Durchmesser der zweiten Garniturwalze (6) und der Durchmesser der dritten Garniturwalze (5) gleich oder nahezu gleich sind.9) Device according to one of claims 1 to 8, characterized in that the diameter of the second clothing roller (6) and the diameter of the third clothing roller (5) are the same or almost the same. 10) Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeich­net, daß die gemeinsame Abdeckung (37) oberhalb mindestens der zweiten Garni­turwalze (6) und der dritten Garniturwalze (5) als Ganzes von den Garniturwalzen (5, 6) wegbewegbar und wieder zurückbewegbar ist.10) Device according to one of claims 1 to 9, characterized in that the common cover (37) above at least the second clothing roller (6) and the third clothing roller (5) as a whole from the clothing rollers (5, 6) can be moved away and moved back again is. 11) Vorrichtung zum Öffnen und Reinigen von Fasergut, insbesondere Baum­wolle, insbesondere nach einem der Ansprüche 1 bis 10, dadurch gekenn­zeichnet, daß der Vorrichtung (1) eine Faserspeisevorrichtung (31) vorgeschaltet ist, die einen oberen Reserveschacht (32) und einen unteren Speiseschacht (33) aufweist, von dem das Fasergut durch eine Überführungsvorrichtung (36) der Speiseeinrichtung (2, 3; 3a, 3b) zu­geführt wird.11) Device for opening and cleaning fiber material, in particular cotton, in particular according to one of claims 1 to 10, characterized in that the device (1) is preceded by a fiber feeding device (31) which has an upper reserve shaft (32) and a lower feed shaft (33), from which the fiber material is fed through a transfer device (36) to the feed device (2, 3; 3a, 3b). 12) Vorrichtung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß zwischen dem Reserveschacht (32) und dem Speiseschacht (33) eine Einzugswalze (34) und eine Öffnerwalze (35) angeordnet sind.12) Device according to one of claims 1 to 11, characterized in that a feed roller (34) and an opening roller (35) are arranged between the reserve shaft (32) and the feed shaft (33). 13) Vorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß der ersten Garniturwalze (4) mindestens eine Abscheidöffnung (7, 7a) und mindestens eine Abscheidkante (8, 8a) und der zweiten Garniturwalze (6) mindestens eine Abscheidöffnung (10) und mindestens eine Abscheid­kante (11) zugeordnet ist.13) Device according to one of claims 1 to 12, characterized in that the first clothing roller (4) at least one separation opening (7, 7a) and at least one separation edge (8, 8a) and the second clothing roller (6) at least one separation opening (10 ) and at least one separating edge (11) is assigned.
EP89112264A 1988-08-02 1989-07-05 Apparatus for opening and cleaning fibre material, especially cotton Expired - Lifetime EP0353482B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3826202 1988-08-02
DE3826202 1988-08-02
DE3906640 1989-03-02
DE3906640A DE3906640C2 (en) 1988-08-02 1989-03-02 Device for opening and cleaning fiber material, especially cotton

Publications (3)

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EP0353482A2 true EP0353482A2 (en) 1990-02-07
EP0353482A3 EP0353482A3 (en) 1991-08-21
EP0353482B1 EP0353482B1 (en) 1994-03-23

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EP89112264A Expired - Lifetime EP0353482B1 (en) 1988-08-02 1989-07-05 Apparatus for opening and cleaning fibre material, especially cotton

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US (1) US5033165A (en)
EP (1) EP0353482B1 (en)
JP (1) JP2766519B2 (en)
CN (1) CN1035632C (en)
BR (1) BR8903859A (en)
CH (1) CH679224A5 (en)
ES (1) ES2014373A6 (en)
FR (1) FR2635122B1 (en)
GB (1) GB2222607B (en)
IT (1) IT1231429B (en)

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Also Published As

Publication number Publication date
CN1035632C (en) 1997-08-13
BR8903859A (en) 1990-03-20
FR2635122A1 (en) 1990-02-09
GB2222607A (en) 1990-03-14
JPH02160926A (en) 1990-06-20
GB2222607B (en) 1993-03-31
EP0353482B1 (en) 1994-03-23
IT1231429B (en) 1991-12-04
IT8921203A0 (en) 1989-07-17
US5033165A (en) 1991-07-23
FR2635122B1 (en) 1992-10-23
CH679224A5 (en) 1992-01-15
JP2766519B2 (en) 1998-06-18
GB8917597D0 (en) 1989-09-13
EP0353482A3 (en) 1991-08-21
CN1040068A (en) 1990-02-28
ES2014373A6 (en) 1990-07-01

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