EP0353482B1 - 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
EP0353482B1
EP0353482B1 EP89112264A EP89112264A EP0353482B1 EP 0353482 B1 EP0353482 B1 EP 0353482B1 EP 89112264 A EP89112264 A EP 89112264A EP 89112264 A EP89112264 A EP 89112264A EP 0353482 B1 EP0353482 B1 EP 0353482B1
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EP
European Patent Office
Prior art keywords
roller
clothed
clothed roller
clothing
opening
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 - Lifetime
Application number
EP89112264A
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German (de)
French (fr)
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EP0353482A2 (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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Filing date
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 significantly 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 and arrives at the screening drum due to the supply air entering through an opening in the housing and the separation opening.
  • 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 clothing rollers 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 found that the suction air flow, which removes 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 directly from the first to the second clothing roller can only be broken up by particularly high speeds, which is structurally complex, in particular limited by the so-called bending-critical 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 overall too low.
  • a carding device which comprises a feed roller with a feed table and three downstream rollers.
  • Pin teeth are present on the circumference of the second roller 33.
  • the pin teeth are aligned counter to the direction of rotation of the roller 33, ie the teeth of the roller 31 and the pin teeth of the roller 33 are aligned with one another in the carding position, not in the opening position.
  • the pin teeth of the roller 33 graze through channels of the individual teeth in the roller 31.
  • the roller 33 rotates at a speed less than the speed of the roller 31.
  • the roller 33 is used to collect and compact the fibers.
  • 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 the third clothing roller 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) interacts with the first clothing roller as a take-off and opening roller, that is to say that the clothing tips of the first and third clothing rollers are not in a carding position to one another, has 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 avoidance of disruptive air flows onto the first clothing roller and improvement of 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 supplied 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 it is not undesirable Soiled impurities are sucked out of the separation opening.
  • the suction air flow for the fiber material is separated from the flow of impurities (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 runs 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. 22 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 separation 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 separation opening 7 communicates with 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, 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 take-off 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 peripheral speed and curvature of this roller and the size of the separating opening 7 adapted to this first separation stage 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 favored by dissolving 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 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 extremely 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 deposit 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 extremely 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 separating openings 7 and 7a with associated separating 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 an acceleration that is gentle on the fiber material.

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

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-0S 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 Garniturwalze 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 Fasermterial 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 Reingiungswirkung der zweiten Garniturwalze insgesamt zu gering.In a known device (DE-0S 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 significantly 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 and arrives at the screening drum due to the supply air entering through an opening in the housing and the separation opening. 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 clothing rollers 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 found that the suction air flow, which removes 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 directly from the first to the second clothing roller can only be broken up by particularly high speeds, which is structurally complex, in particular limited by the so-called bending-critical 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 overall too low.

Aus der US-A-2014763 aus dem Jahre 1935 ist eine Vorrichtung zum Kardieren bekannt, die eine Speisewalze mit Speisetisch und drei nachgeordneten Walzen umfaßt. Auf der ersten Walze 31 sind am Umfang Zähne vorhanden, die tangential zur Oberfläche der Walze 31 ausgerichtet sind. Diese einzelnen Zähne sind sehr grob. Auf der zweiten Walze 33 sind am Umfang Stiftzähne vorhanden. Die Stiftzähne sind entgegen der Drehrichtung der Walze 33 ausgerichtet, d. h. die Zähne der Walze 31 und die Stiftzähne der Walze 33 sind - nicht in Auflösestellung, sondern - in Kardierstellung zueinander ausgerichtet. Die Stiftzähne der Walze 33 streifen durch Kanäle der Einzelzähne in der Walze 31 hindurch. Die Walze 33 dreht sich mit einer Geschwindigkeit, die geringer als die Geschwindigkeit der Walze 31 ist. Die Walze 33 dient zum Sammeln und Verdichten der Fasern. Unterhalb der Walze 33 ist keine geschlossene, zylindrische Abdeckung vorhanden, so daß die Luft von der Walze 33 stark verwirbelt wird. Auf der dritten Walze 38 sind am Umfang Stiftzähne vorhanden. Die Stiftzähne der Walze 38 und die Stiftzähne der Walze 33 sind - nicht in Auflösestellung, sondern - in Kardierstellung zueinander ausgerichtet.From US-A-2014763 from 1935 a carding device is known which comprises a feed roller with a feed table and three downstream rollers. On the first roller 31 there are teeth on the circumference which are oriented tangentially to the surface of the roller 31. These individual teeth are very rough. Pin teeth are present on the circumference of the second roller 33. The pin teeth are aligned counter to the direction of rotation of the roller 33, ie the teeth of the roller 31 and the pin teeth of the roller 33 are aligned with one another in the carding position, not in the opening position. The pin teeth of the roller 33 graze through channels of the individual teeth in the roller 31. The roller 33 rotates at a speed less than the speed of the roller 31. The roller 33 is used to collect and compact the fibers. There is no closed, cylindrical cover underneath the roller 33, so that the air is strongly swirled by the roller 33. Pin teeth are present on the circumference of the third roller 38. The pin teeth of the roller 38 and the pin teeth of the roller 33 are aligned with one another in the carding position, not in the opening position but in the carding position.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs beschriebenen 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 the third clothing roller 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) interacts with the first clothing roller as a take-off and opening roller, that is to say that the clothing tips of the first and third clothing rollers are not in a carding position to one another, has 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 avoidance of disruptive air flows onto the first clothing roller and improvement of 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 voneinander entfernt. Jede Abscheidöffnung erzeugt im Bereich darunter Turbulenzen, und zur Ausscheidung der Abfälle aus diesen turbulenten Strömungen braucht man große Beruhigungsräume. 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 away. Each separation opening creates turbulence in the area below, and large settling rooms are required to separate the waste from these turbulent flows. These are also larger and are further apart. The waste flight from the separation opening on the second clothing roller can thus be 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 unerwünschter Weise aus der Abscheidöffnung abgeschiedene Verunreinigungen angesaugt werden. Der Absaugluftstrom für das Fasermaterial ist von dem Strom der Verunreinigungen (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 supplied 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 it is not undesirable Soiled impurities are sucked out of the separation opening. The suction air flow for the fiber material is separated from the flow of impurities (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 nachfolgend anhand von zeichnerisch dargestellten Ausführungsbeispielen näher erläutert.The invention is explained in more detail below with reference to 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:
Fig. 1
the device according to the invention with feed roller and dining table in side view,
Fig. 2
1 with two feed rollers, two separating openings with separating edges on the first clothing roller and a dedusting machine connected downstream,
Fig. 3
an embodiment with the same diameter of the second and third clothing roller and
Fig. 4
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) um läuft. 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. 22 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 runs 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. 22 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 separation 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 separation opening 7 communicates with 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 stärkere 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, 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 take-off 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 stronger accelerations and therefore centrifugal forces than in the first clothing roller 4, which rotates at a much higher speed than the clothing roller 4 due to the higher angular velocity. 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 peripheral speed and curvature of this roller and the size of the separating opening 7 adapted to this first separation stage 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 favored by dissolving 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 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 extremely 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 deposit 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 separating openings 7 and 7a with associated separating 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 zweiten 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.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.

Ein weiterer 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 an acceleration that is gentle on the fiber material.

Claims (13)

  1. Apparatus for opening and cleaning fibre material, especially cotton, having at least two clothed rollers arranged downstream of a supply device, in which at least two clothed rollers in each case are associated with at least one separating edge for impurities having an associated separating opening and in which the centrifugal forces at the periphery of the second clothed roller are greater than those at the periphery of the first clothed roller, characterised in that arranged between the first clothed roller (4) and the second clothed roller (6) is a third clothed roller (5), that the three clothed rollers (4, 5, 6) are connected one after the other, and that the third clothed roller (5) cooperates with the first clothed roller (4) and the second clothed roller (6) cooperates with the third clothed roller (5), in each case as a take-off and opener roller.
  2. Apparatus according to claim 1, characterised in that the direction (B) of rotation of the third clothed roller (5) is opposed to the direction (A) of rotation of the first clothed roller (4) and to the direction (C) of rotation of the second clothed roller (6).
  3. Apparatus according to claim 1 or 2, characterised in that the third clothed roller (5) is surrounded by a housing (20, 21) having no separating openings or separating edges.
  4. Apparatus according to any one of claims 1 to 3, characterised in that the speed at the periphery of the third clothed roller (5) is higher than the speed at the periphery of the first clothed roller (4).
  5. Apparatus according to any one of claims 1 to 4, characterised in that the speed at the periphery of the second clothed roller (6) is higher than that at the periphery of the third clothed roller (5).
  6. Apparatus according to any one of claims 1 to 5, characterised in that connected downstream of the second clothed roller (6) is a device that separates the fibres from the transporting air, for example a screen drum, dust-removing machine (27) or the like, to which device the fibre material is supplied by means of a stream (16) of air.
  7. Apparatus according to any one of claims 1 to 6, characterised in that connected downstream of the second clothed roller (6) is a fibre-transport line (14) having a material-transport fan (29).
  8. Apparatus according to any one of claims 1 to 7, characterised in that there is an air-suction slot (15) in the vicinity of the fibre-delivery position (14a) of the second clothed roller (6).
  9. Apparatus according to any one of claims 1 to 8, characterised in that the diameter of the second clothed roller (6) and the diameter of the third clothed roller (5) are the same or virtually the same.
  10. Apparatus according to any one of claims 1 to 9, characterised in that the common cover (37) above at least the second clothed roller (6) and the third clothed roller (5) can be moved as a whole away from the clothed rollers (5, 6) and back again.
  11. Apparatus for opening and cleaning fibre material, especially cotton, especially according to any one of claims 1 to 10, characterised in that a fibre-feeding device (31) having an upper reserve shaft (32) and a lower feed shaft (33) from which the fibre material is fed by means of a transfer device (36) to the feeding device (2, 3; 3a, 3b) is connected upstream of the apparatus (1).
  12. Apparatus according to any one of claims 1 to 11, characterised in that a take-in roller (34) and an opener roller (35) are arranged between the reserve shaft (32) and the feed shaft (33).
  13. Apparatus according to any one of claims 1 to 12, characterised in that at least one separating opening (7, 7a) and at least one separating edge (8, 8a) are associated with the first clothed roller (4) and at least one separating opening (10) and at least one separating edge (11) are associated with the second clothed roller (6).
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)

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

Family

ID=25870737

Family Applications (1)

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

Country Status (10)

Country Link
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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JP3082969B2 (en) * 1990-09-17 2000-09-04 ツリュツラー ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト Equipment installed on cards for cotton fibers, clearer machines, etc.
DE4130147B4 (en) * 1990-09-17 2005-08-11 Trützschler GmbH & Co KG Device on a card, cleaning machine o. The like. For cotton fibers
US5203052A (en) * 1991-06-17 1993-04-20 Phoenix Associates Noise suppression box for fiber processing machinery
US5737806A (en) * 1994-05-26 1998-04-14 Trutzschler Gmbh & Co. Kg Apparatus for treating fiber and producing a fiber lap therefrom
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CN1314849C (en) * 2001-11-19 2007-05-09 赵庭义 Cotton impurity eliminating machine
US6615455B1 (en) * 2002-09-16 2003-09-09 Akiva Pinto Fiber opening apparatus
CH712825A1 (en) 2016-08-19 2018-02-28 Rieter Ag Maschf Device for processing fiber material.
CH713895A1 (en) * 2017-06-15 2018-12-28 Rieter Ag Maschf Device for cleaning fiber material.

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Also Published As

Publication number Publication date
CH679224A5 (en) 1992-01-15
EP0353482A2 (en) 1990-02-07
FR2635122A1 (en) 1990-02-09
JPH02160926A (en) 1990-06-20
ES2014373A6 (en) 1990-07-01
JP2766519B2 (en) 1998-06-18
GB2222607A (en) 1990-03-14
BR8903859A (en) 1990-03-20
GB8917597D0 (en) 1989-09-13
CN1040068A (en) 1990-02-28
EP0353482A3 (en) 1991-08-21
FR2635122B1 (en) 1992-10-23
GB2222607B (en) 1993-03-31
CN1035632C (en) 1997-08-13
IT8921203A0 (en) 1989-07-17
US5033165A (en) 1991-07-23
IT1231429B (en) 1991-12-04

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