EP0572495B1 - Device for opening flocculent fibrous material - Google Patents

Device for opening flocculent fibrous material Download PDF

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Publication number
EP0572495B1
EP0572495B1 EP92905486A EP92905486A EP0572495B1 EP 0572495 B1 EP0572495 B1 EP 0572495B1 EP 92905486 A EP92905486 A EP 92905486A EP 92905486 A EP92905486 A EP 92905486A EP 0572495 B1 EP0572495 B1 EP 0572495B1
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EP
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Prior art keywords
housing
hollow cylinder
opening
opening disc
counter
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EP92905486A
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German (de)
French (fr)
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EP0572495A1 (en
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Josef Stummer
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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
    • D01G9/06—Opening or cleaning fibres, e.g. scutching cotton by means of toothed members

Definitions

  • the invention relates to a device for opening flake fiber material made of natural or synthetic fibers, a housing with a built-in opener disc and which is installed via a supply connection piece and a discharge connection piece in a pneumatic conveyor line for processing the fiber material.
  • Such devices are known in a wide variety of embodiments.
  • a device for opening and cleaning fiber material with two opposing rollers is known, which are mounted in parallel above a lattice bar, grating or the like and below a closed cover hood and provided with pins or the like , wherein the inlet and outlet openings are arranged so that the fiber material is fed in and out in a direction lying parallel to the rollers by means of an air stream.
  • pin rollers require a large footprint, have a low throughput, a poor degree of opening and are subject to high wear. There is also a risk of the rolls forming on the rolls and subsequently blocking them.
  • GB-A-996 604 shows a fiber opening and cleaning machine with a driven opener disc built into a housing which is opposed by a stationary counter-opener disc to form a space.
  • a fan wheel on the drive shaft of the opening disc, which is opposite the central opening in the counter opening disc.
  • the opening of the counter-opening disc is connected to a material feed line via a cone-shaped pipe section which opens into the housing from above.
  • the opener disk and the counter-opener disk are surrounded on their periphery by fixed grille bars, through which on the one hand dust in the horizontal direction into an annular chamber lying inside the housing and on the other hand fiber material opened in the vertical direction into a hood attached to the top of the housing and connected to a suction line reached.
  • GB-A-478 760 discloses a Crighton opener with an inverted U-shaped housing which is set up on a floor of the floor and which in its interior accommodates a shaft which is supported on the floor in the lower region and on the side of which there is a feed line - Connection piece is connected.
  • the shaft carries on its upper side a basket made of individual lattice bars, which widens from it in the shape of a truncated cone.
  • a driven opening device which is connected to a discharge connection piece and which is designed as a cross wheel and acts as a racket to drive foreign matter downward in the direction of the floor.
  • Suction nozzles are assigned to the basket laterally within a chamber between the basket and the housing, through which lighter foreign matter is continuously extracted.
  • the invention has for its object to provide a device of the type mentioned, which ensures high efficiency with a structurally simple and compact structure and avoids the occurrence of fiber traps in the opener area.
  • the inlet connecting piece opening into the housing at the bottom extends into a hollow cylinder which is open at the top and extends into the cylindrical housing connected to the outlet connecting piece, forming an annular chamber, with a certain parallel distance from the free end face of the hollow cylinder a driven opener covering this, which is equipped with pointed pins in the direction of the hollow cylinder, is arranged.
  • the main advantages achieved with the device according to the invention are a small footprint, a good degree of opening, few construction and wear parts and high performance.
  • the fiber air flow entering the supply connection piece emerges after passing through the hollow cylinder from its open end face and is then gripped by the opening disk running at a relatively high speed, the flake-shaped fiber material being opened by the pins of the opening disk and due to the centrifugal force together with the air is passed through the peripheral outlet slot between the opening disk and the hollow cylinder into the annular chamber, from which the fiber air flow is then sucked out via the discharge nozzle. Since the fiber material in the area of the opening disk is subject to a high centrifugal force, no winding formation occurs on the opening disk.
  • a fixed, circular segment-shaped counter opening disc is inserted into the end face of the hollow cylinder and is equipped with pointed pins in the direction of the opening disc.
  • the opener disc becomes the fiber airflow fed compressed only in a certain area, and the counter-opening disc in cooperation with the opening disc ensures safe opening of the fiber material.
  • the chord of the circular segment-shaped counter opening disk runs at a distance from the diameter of the counter opening disk, which is defined by a circumferential angle of approximately 200 °, according to an advantageous development of the invention .
  • a circumferential angle of approximately 200 ° is defined by a circumferential angle of approximately 200 °
  • the counter-opening disk is provided with pins only in an angular range of approximately 120 °.
  • the pins of the counter-opening disk are expediently arranged in a row from a free central area in a radially outward direction.
  • the pins of the counter-opening disk are preferably mounted inclined in the direction of rotation of the opening disk.
  • the pins of the opening disk are expediently arranged running from a free central area in crescent-shaped rows to the periphery, the pins of the opening disk preferably being arranged inclined outwards.
  • the opening disk is surrounded by an annular flange attached to the cover of the housing, on the outside of which a shield attached to the hollow cylinder, which extends over the circumference of the pin area of the counter-opening disk, slides.
  • a shield attached to the hollow cylinder which extends over the circumference of the pin area of the counter-opening disk, slides.
  • the opening disk is connected in its central region via a retaining flange to a drive shaft which extends through a bearing block placed on the cover of the housing and carries a drive wheel coupled to a drive motor via a gear.
  • a drive shaft which extends through a bearing block placed on the cover of the housing and carries a drive wheel coupled to a drive motor via a gear.
  • ventilation holes are let into the cover of the housing, which open out into the space delimited by the opening disk and the annular flange.
  • the lower region of the hollow cylinder is designed in the shape of a truncated cone. This slows down the ascending fiber air flow, causing heavy fiber flakes to swirl within the hollow cylinder, which loosens them up.
  • the height adjustment of the supply pipe connecting piece carrying the hollow cylinder is carried out via a rack and pinion drive. This results in a simple adjustment of the distance between the opening disk and the counter-opening disk, as a result of which the opening effect can be adapted to the respective fiber air flow.
  • the lower region of the housing is designed to taper conically towards the bottom of the housing, with the discharge connecting piece extending tangentially from this region.
  • a fresh air supply nozzle provided with an adjusting flap preferably opens into the conical region of the housing opposite the discharge connection piece. This makes it possible to prevent fiber deposits in the bottom area of the housing by supplying fresh air.
  • the device 1 comprises a cylindrical housing 2, the lower region of which is designed to taper towards the bottom 3 of the housing 2.
  • the supply connection piece 5 In its variable position within the ring flange 4, the supply connection piece 5 is fixed by a rack and pinion drive 6 coupled to it.
  • the supply connection piece 5 flows under suction pressure, loaded with fiber flakes transport air flow from a fiber flake machine in the direction of arrow D into the device 1.
  • the supply connection piece 5 is connected to a hollow cylinder 7, the lower one Area of the hollow cylinder 7 from the supply connection piece 5 is designed to expand in the shape of a truncated cone.
  • the housing 2 has at its upper end on the outside a circumferential ring flange 12 which is connected to a cover washer 14 by means of screws 13 distributed uniformly over the circumference.
  • the opening 15 of the cover ring disk 14 is closed by a cover 16 resting thereon. Screw connections 17 distributed uniformly over the circumference secure the cover 16 in its position.
  • a drive shaft 18 extends centrally through the cover 16 for an opening disk 19 located within the housing 2.
  • the drive shaft 18 is supported in a bearing 20 which is accommodated in a bearing block 21 fastened on the outside of the cover 16 with the associated bearing cover 22.
  • the end of the drive shaft 18 protruding beyond the bearing cover 22 of the bearing block 21 carries a drive wheel 23 in a rotationally fixed manner, which can be connected to a drive motor via a gear.
  • the end of the drive shaft 18 protruding into the housing 2 carries a holding flange 24 for the opening disk 19 in a rotationally fixed manner.
  • the holding flange 24 fixed on the drive shaft 18 via a tongue and groove connection 25 has in one piece a circumferential annular shoulder 26, the distance of which from that with the End of the drive shaft 18 corresponds to the outside of the holding flange 24 aligned with the thickness of the opening disk 19.
  • the opening disk 19 bears on the annular shoulder 26, the holding flange 24 being in a corresponding one with it Center bore 27 of the opening disk 19 extends.
  • the opening disk 19 is fastened to the annular shoulder 26 by means of screw connections 28 distributed uniformly over the circumference of the annular shoulder 26.
  • the opening disc 19, which is slightly larger in diameter than the diameter of the hollow cylinder 7, is equipped on its side facing the hollow cylinder 7 with pointed pins 29 which run obliquely outwards.
  • the pins 29 are distributed in the form of six equally spaced crescent lines 30 on the opening disk 19.
  • the pins are inserted in correspondingly slanted bores 31 of the opening disk 19.
  • An annular flange 32 fastened to the inside of the cover 16 concentrically surrounds the opening disk.
  • Opposing the opening disk 19 are concentric, evenly distributed over the circumference vent holes 33 in the cover 16.
  • the hollow cylinder 7 arranged coaxially to the opening disk 19 ends with its free end face at a certain, parallel distance from the opening disk 19, this distance varying with the aid of the rack and pinion drive 6 depending on the type of fiber-air flow in order to achieve an optimal degree of opening of the fiber material can be.
  • the opening disk 19 is opposite a circular segment-shaped counter opening disk 35 inserted into the end face of the hollow cylinder 7.
  • the fixed counter-opening disc 35 which is equipped with pointed pins 36, encloses with its chord 37 a circumferential angle ⁇ of approximately 200 °, ie the counter-opening disc 35 closes more than half of the end face of the hollow cylinder 7.
  • the resulting reduced outlet opening 38 of the hollow cylinder 7 leads the fiber air flow in compressed form to the opening disk 19, which in cooperation with the counter opening disk 35 opens the fiber material.
  • the pins 36 of the counter-opener disk 35 which are inclined in the direction of rotation of the opener disk 19, are distributed from a free area 39 in radial lines 40 on the upper side of the counter-opener disk 35, the pins, however, only in an angular range ⁇ of approx. 120 ° are arranged.
  • a circular section-shaped shield 41 is attached to the outside of the hollow cylinder 7, the free end of which abuts the outside of the ring flange 32 attached to the cover 16 in a slidable manner.
  • the shield 41 extends only over the angular range ⁇ of the fitting of the counter-opening disc 35, so that an angle range of approximately 240 ° remains between the opening disc 19 and the counter-opening disc 35 for the outlet 42 of the fiber material. From the outlet 42, the fiber-air flow in the direction of arrow G is helical within the annular chamber 8 to the discharge connection piece 9 and exits from it in the direction of arrow F.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Paper (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Inorganic Fibers (AREA)
  • Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
  • Artificial Filaments (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Detergent Compositions (AREA)

Abstract

PCT No. PCT/DE92/00119 Sec. 371 Date Aug. 20, 1993 Sec. 102(e) Date Aug. 20, 1993 PCT Filed Aug. 20, 1993 PCT Pub. No. WO92/14872 PCT Pub. Date Sep. 3, 1992.A device for opening flocculent fibrous materials, including a housing and a supply connection pipe having an end extending into a lower portion of the housing for introducing into the housing a negative pressure transport air current conveying fiber flocks. A hollow cylinder is provided that has one end connected to the end of the supply connection pipe, an open end opposite to the one end, and a diameter larger than a diameter of the end of the supply connection pipe. The hollow cylinder forms an annular chamber within the housing. The device further includes a discharge connection pipe connectable to the housing for discharging the fibrous material. The housing, supply connection pipe, hollow cylinder and discharge connection pipe collectively define a pneumatic conveying path for the fibrous material. Additionally provided is a drivable opening disc disposed within the housing and positioned at a distance from and parallel to the open end of the hollow cylinder to extend across the open end. The disc includes a plurality of pointed spikes each projecting towards the hollow cylinder for processing material as it is conveyed along the pneumatic conveying path.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Öffnen von flockenförmigem Fasergut aus natürlichen oder synthetischen Fasern, ein Gehäuse mit eingebauter Öffnerscheibe umfaßt und die über einen Zuleitungs-Anschlußstutzen und einen Ableitungs-Anschlußstutzen in eine pneumatische Förderstraße für die Bearbeitung des Fasergutes eingebaut ist.The invention relates to a device for opening flake fiber material made of natural or synthetic fibers, a housing with a built-in opener disc and which is installed via a supply connection piece and a discharge connection piece in a pneumatic conveyor line for processing the fiber material.

Derartige Vorrichtungen sind in den verschiedensten Ausführungsformen bekannt. So ist beispielsweise aus der DE 33 33 750 A1 eine Vorrichtung zum Öffnen und Reinigen von Fasergut mit zwei gegenüberliegenden Walzen bekannt, die oberhalb von Gitterstäben, Rosten oder dergleichen und unterhalb einer geschlossenen Abdeckhaube in einer horizontalen Ebene parallel gelagert und mit Stiften oder dergleichen versehen sind, wobei die Ein- und Austrittsöffnungen so angeordnet sind, daß das Fasergut in einer parallel zu den Walzen liegenden Richtung mittels eines Luftstromes zu- und abgeführt wird. Solche mit Stiftwalzen arbeitende Vorrichtungen benötigen eine große Standfläche, haben bei geringem Durchsatz, einen schlechten Öffnungsgrad und unterliegen einem hohen Verschleiß. Zudem besteht die Gefahr der Wickelbildung auf den Walzen mit anschließendem Blockieren derselben.Such devices are known in a wide variety of embodiments. For example, from DE 33 33 750 A1 a device for opening and cleaning fiber material with two opposing rollers is known, which are mounted in parallel above a lattice bar, grating or the like and below a closed cover hood and provided with pins or the like , wherein the inlet and outlet openings are arranged so that the fiber material is fed in and out in a direction lying parallel to the rollers by means of an air stream. Such devices working with pin rollers require a large footprint, have a low throughput, a poor degree of opening and are subject to high wear. There is also a risk of the rolls forming on the rolls and subsequently blocking them.

Weiterhin zeigt die GB-A-996 604 eine Faser-Öffnungs- und Reinigungs-Maschine mit einer in ein Gehäuse eingebauten, angetriebenen Öffnerscheibe der unter Bildung eines Zwischenraumes eine stationäre Gegenöffnerscheibe gegenüberliegt. Auf der Antriebswelle der Öffnerscheibe sitzt ein Gebläserad, das der zentralen Öffnung in der Gegenöffnerscheibe gegenüberliegt. Die Öffnung der Gegenöffnerscheibe ist über ein von oben in das Gehäuse einmündendes konusförmiges Rohrstück mit einer Materialzufuhrleitung verbunden. Die Öffnerscheibe und die Gegenöffnerscheibe sind an ihrer Peripherie von feststehenden Gitterstäben umgeben, durch die hindurch einerseits in horizontaler Richtung Staub in eine innerhalb des Gehäuses liegende Ringkammer und andererseits in vertikaler Richtung geöffnetes Fasermaterial in eine an der Oberseite des Gehäuses angebrachte und mit einer Saugleitung verbundene Abzugshaube gelangt.Furthermore, GB-A-996 604 shows a fiber opening and cleaning machine with a driven opener disc built into a housing which is opposed by a stationary counter-opener disc to form a space. There is a fan wheel on the drive shaft of the opening disc, which is opposite the central opening in the counter opening disc. The opening of the counter-opening disc is connected to a material feed line via a cone-shaped pipe section which opens into the housing from above. The opener disk and the counter-opener disk are surrounded on their periphery by fixed grille bars, through which on the one hand dust in the horizontal direction into an annular chamber lying inside the housing and on the other hand fiber material opened in the vertical direction into a hood attached to the top of the housing and connected to a suction line reached.

Des weiteren offenbart die GB-A-478 760 einen Crighton-Öffner mit einem auf einem Geschoß-Boden aufgestellten, umgekehrt U-förmigen Gehäuse, das in seinem Innern im unteren Bereich einen sich auf dem Boden abstützenden Schacht aufnimmt, an dem seitlich ein Zuleitungs-Anschlußstutzen angeschlossen ist. Der Schacht trägt auf seiner Oberseite einen sich von dieser aus kegelstumpfförmig erweiternden Korb aus einzelnen Gitterstäben. Oberhalb des Korbes befindet sich eine mit einem Ableitungs-Anschlußstutzen in Verbindung stehende, angetriebene Öffnereinrichtung, die als Kreuzrad ausgebildet ist und als Schläger wirkt, um Fremdstoffe in Richtung des bodens nach unten zu treiben. Dem Korb sind seitlich innerhalb einer Kammer zwischen dem Korb und dem Gehäuse Absaugdüsen zugeordnet, über die leichtere Fremdstoffe kontinuierlich abgesaugt werden.Furthermore, GB-A-478 760 discloses a Crighton opener with an inverted U-shaped housing which is set up on a floor of the floor and which in its interior accommodates a shaft which is supported on the floor in the lower region and on the side of which there is a feed line - Connection piece is connected. The shaft carries on its upper side a basket made of individual lattice bars, which widens from it in the shape of a truncated cone. Above the basket there is a driven opening device which is connected to a discharge connection piece and which is designed as a cross wheel and acts as a racket to drive foreign matter downward in the direction of the floor. Suction nozzles are assigned to the basket laterally within a chamber between the basket and the housing, through which lighter foreign matter is continuously extracted.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die bei konstruktiv einfachem und kompaktem Aufbau einen hohen Wirkungsgrad gewährleistet und ein Auftreten von Faserverhängungen im Öffnerbereich vermeidet.The invention has for its object to provide a device of the type mentioned, which ensures high efficiency with a structurally simple and compact structure and avoids the occurrence of fiber traps in the opener area.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der unten in das Gehäuse einmündende Zuleitungs-Anschlußstutzen in einen oben offenen Hohlzylinder, der sich in das mit dem Ableitungs-Anschlußstutzen verbundene, zylinderische Gehäuse unter Bildung einer Ringkammer erstreckt, wobei in einem bestimmten parallelen Abstand zu der freien Stirnseite des Hohlzylinders eine diesen abdeckende, angetriebene Öffnerscheibe, die in Richtung des Hohlzylinders mit spitzen Stiften bestückt ist, angeordnet ist.This object is achieved according to the invention in that the inlet connecting piece opening into the housing at the bottom extends into a hollow cylinder which is open at the top and extends into the cylindrical housing connected to the outlet connecting piece, forming an annular chamber, with a certain parallel distance from the free end face of the hollow cylinder a driven opener covering this, which is equipped with pointed pins in the direction of the hollow cylinder, is arranged.

Die mit der erfindungsgemäßen Vorrichtung erzielten wesentlichen Vorteile bestehen in einer kleinen Standfläche, einem guten Öffnungsgrad, wenigen Bau- sowie Verschleißteilen und einer hohen Leistung. Der in den Zuleitungs-Anschlußstutzen eintretende Faser-Luftstrom tritt nach dem Passieren des Hohlzylinders aus dessen offener Stirnseite aus und wird dann von der mit relativ hoher Drehzahl laufenden Öffnerscheibe erfaßt, wobei das flockenförmige Fasergut durch die Stifte der Öffnerscheibe geöffnet und aufgrund der Zentrifugalkraft gemeinsam mit der Luft durch den peripheren Austrittsschlitz zwischen Öffnerscheibe und Hohlzylinder in die Ringkammer übergeleitet wird, von der aus dann der Faser-Luftstrom über den Ableitungs-Stutzen abgesaugt wird. Da hierbei das Fasergut im Bereich der Öffnerscheibe einer hohen Zentrifugalkraft unterliegt, tritt keine Wickelbildung an der Öffnerscheibe auf.The main advantages achieved with the device according to the invention are a small footprint, a good degree of opening, few construction and wear parts and high performance. The fiber air flow entering the supply connection piece emerges after passing through the hollow cylinder from its open end face and is then gripped by the opening disk running at a relatively high speed, the flake-shaped fiber material being opened by the pins of the opening disk and due to the centrifugal force together with the air is passed through the peripheral outlet slot between the opening disk and the hollow cylinder into the annular chamber, from which the fiber air flow is then sucked out via the discharge nozzle. Since the fiber material in the area of the opening disk is subject to a high centrifugal force, no winding formation occurs on the opening disk.

Um die Effizienz der Öffnerscheibe zu erhöhen, ist nach einer vorteilhaften Ausgestaltung der Erfindung in die Stirnseite des Hohlzylinders eine feststehende, kreissegmentförmige Gegenöffnerscheibe eingesetzt, die in Richtung der Öffnerscheibe mit spitzen Stiften bestückt ist. Auf diese Weise wird der Öffnerscheibe der Faser-Luftstrom komprimiert nur in einem bestimmten Bereich zugeführt, und die Gegenöffnerscheibe sorgt in Zusammenwirken mit der Öffnerscheibe für ein sicheres Öffnen des Fasergutes.In order to increase the efficiency of the opening disc, according to an advantageous embodiment of the invention, a fixed, circular segment-shaped counter opening disc is inserted into the end face of the hollow cylinder and is equipped with pointed pins in the direction of the opening disc. In this way, the opener disc becomes the fiber airflow fed compressed only in a certain area, and the counter-opening disc in cooperation with the opening disc ensures safe opening of the fiber material.

Damit der aus dem Hohlzylinder austretende Faser-Luftstrom nicht im zentralen Bereich auf die Öffnerscheibe auftrifft, verläuft nach einer vorteilhaften Weiterbildung der Erfindung die Sehne der kreissegmentförmigen Gegenöffnerscheibe in einem Abstand zu dem Durchmesser der Gegenöffnerscheibe, der durch einen Umfangswinkel von ca. 200° definiert ist. Dadurch ist mehr als die Hälfte der Stirnseite des Hohlzylinders durch die Gegenöffnerscheibe abgedeckt.So that the fiber air stream emerging from the hollow cylinder does not strike the opening disk in the central region, the chord of the circular segment-shaped counter opening disk runs at a distance from the diameter of the counter opening disk, which is defined by a circumferential angle of approximately 200 °, according to an advantageous development of the invention . As a result, more than half of the end face of the hollow cylinder is covered by the counter-opening disk.

Zur Verbesserung des Öffnereffektes ist nach einer vorteilhaften weiteren Ausgestaltung des Erfindungsgegenstandes die Gegenöffnerscheibe nur in einem Winkelbereich von ca. 120° mit Stiften versehen. Zweckmäßigerweise sind hierbei die Stifte der Gegenöffnerscheibe von einem freien zentralen Bereich aus reihenförmig radial nach außen verlaufend angeordnet. Weiterhin sind bevorzugt die Stifte der Gegenöffnerscheibe in der Drehrichtung der Öffnerscheibe geneigt angebracht. Zur weiteren Erhöhung des Öffnereffektes sind zweckmäßigerweise die Stifte der Öffnerscheibe von einem freien zentralen Bereich aus in sichelförmig ausgebildeten Reihen zu der Peripherie hin verlaufend angeordnet, wobei die Stifte der Öffnerscheibe bevorzugt schräg nach außen geneigt angebracht sind.To improve the opening effect, according to an advantageous further embodiment of the subject matter of the invention, the counter-opening disk is provided with pins only in an angular range of approximately 120 °. The pins of the counter-opening disk are expediently arranged in a row from a free central area in a radially outward direction. Furthermore, the pins of the counter-opening disk are preferably mounted inclined in the direction of rotation of the opening disk. In order to further increase the opening effect, the pins of the opening disk are expediently arranged running from a free central area in crescent-shaped rows to the periphery, the pins of the opening disk preferably being arranged inclined outwards.

Bei einer vorteilhaften Weiterbildung des Gegenstandes der Erfindung ist die Öffnerscheibe von einem am Deckel des Gehäuses befestigten Ringflansch umgeben, an dessen Außenseite gleitbeweglich eine an dem Hohlzylinder befestigte, sich über den Umfang des Bestiftungsbereiches der Gegenöffnerscheibe erstreckende Abschirmung anliegt. Durch die Abschirmung kann das Fasergut nicht vorzeitig durch die Zentrifugalkraft der Öffnerscheibe aus dem Bestiftungsbereich hinausgetragen werden. Gleichzeitig verhindert der Ringflansch Faser-Ablagerungen oberhalb der Öffnerscheibe.In an advantageous further development of the subject matter of the invention, the opening disk is surrounded by an annular flange attached to the cover of the housing, on the outside of which a shield attached to the hollow cylinder, which extends over the circumference of the pin area of the counter-opening disk, slides. Through the shield the fiber material cannot be prematurely carried out of the pin area by the centrifugal force of the opening disc. At the same time, the ring flange prevents fiber deposits above the opening disk.

Des weiteren ist bei einer vorteilhaften Ausgestaltung der erfindungsgemäßen Lösung die Öffnerscheibe in ihrem zentralen Bereich über einen Halteflansch mit einer Antriebswelle verbunden, die sich durch einen auf den Deckel des Gehäuses aufgesetzten Lagerbock erstreckt und endseitig ein über ein Getriebe mit einem Antriebsmotor gekoppeltes Antriebsrad trägt. So ergibt sich ein insgesamt kompakter Antrieb für die Öffnerscheibe. Selbstverständlich ist auch ein unmittelbarer Antrieb der Öffnerscheibe möglich.Furthermore, in an advantageous embodiment of the solution according to the invention, the opening disk is connected in its central region via a retaining flange to a drive shaft which extends through a bearing block placed on the cover of the housing and carries a drive wheel coupled to a drive motor via a gear. This results in an overall compact drive for the opening disk. Of course, a direct drive of the opening disc is also possible.

Um das Auftreten eines Unterdruckes oberhalb der Öffnerscheibe zu vermeiden, sind bei einer vorteilhaften Ausgestaltung der Erfindung in den Deckel des Gehäuses Entlüftungsbohrungen eingelassen, die in den von der Öffnerscheibe und dem Ringflansch begrenzten Raum einmünden.In order to avoid the occurrence of a negative pressure above the opening disk, in an advantageous embodiment of the invention, ventilation holes are let into the cover of the housing, which open out into the space delimited by the opening disk and the annular flange.

Weiterhin ist bevorzugt vorgesehen, daß der untere Bereich des Hohlzylinders, dessen Durchmesser größer als der Durchmesser des Zuleitungs-Anschlußstutzens ist, kegelstumpfförmig ausgebildet ist. Dies bewirkt eine Verlangsamung des aufsteigenden Faser-Luftstromes, wodurch schwere Faserflocken innerhalb des Hohlzylinders durchwirbelt werden, was zu einer Auflockerung derselben führt.Furthermore, it is preferably provided that the lower region of the hollow cylinder, the diameter of which is larger than the diameter of the feed connector, is designed in the shape of a truncated cone. This slows down the ascending fiber air flow, causing heavy fiber flakes to swirl within the hollow cylinder, which loosens them up.

Damit die Leistungsfähigkeit der Vorrichtung an Faser-Luftströme unterschiedlicher Intensität auf einfache Art und Weise angepaßt werden kann, ist nach einer vorteilhaften Weiterbildung des Erfindungsgegenstandes der innerhalb des Gehäuses mit dem Hohlzylinder verbundene Zuleitungs-Anschlußstutzen in einem an der Außenseite des Bodens des Gehäuses befestigten Ringflansch höhenverstellbar aufgenommen. Zweckmäßigerweise erfolgt die Höhenverstellung des den Hohlzylinder tragenden Zuleitungs-Anschlußstutzens über einen Zahnstangentrieb. So ergibt sich eine einfache Verstellung des Abstandes zwischen der Öffnerscheibe und der Gegenöffnerscheibe, wodurch der Öffnereffekt an den jeweiligen Faser-Luftstrom angepaßt werden kann.So that the performance of the device can be easily adapted to fiber air flows of different intensities, according to an advantageous further development of the subject matter of the invention, the supply connection piece connected to the hollow cylinder within the housing in a height-adjustable ring flange attached to the outside of the bottom of the housing. Advantageously, the height adjustment of the supply pipe connecting piece carrying the hollow cylinder is carried out via a rack and pinion drive. This results in a simple adjustment of the distance between the opening disk and the counter-opening disk, as a result of which the opening effect can be adapted to the respective fiber air flow.

Zur Vermeidung von Faser-Ablagerungen auf dem Boden des Gehäuses ist nach einer weiteren vorteilhaften Ausgestaltung der Erfindung der untere Bereich des Gehäuses zum Boden des Gehäuses hin konisch zulaufend ausgebildet, wobei von diesem Bereich der Ableitungs-Anschlußstutzen tangential abgeht. Bevorzugt mündet hierbei in den konischen Bereich des Gehäuses dem Ableitungs-Anschlußstutzen gegenüberliegend ein mit einer Stellklappe versehener Frischluft-Zufuhrstutzen ein. Hierdurch ist es möglich, Faserablagerungen im Bodenbereich des Gehäuses durch Zufuhr von Frischluft zu verhindern.To avoid fiber deposits on the bottom of the housing, according to a further advantageous embodiment of the invention, the lower region of the housing is designed to taper conically towards the bottom of the housing, with the discharge connecting piece extending tangentially from this region. In this case, a fresh air supply nozzle provided with an adjusting flap preferably opens into the conical region of the housing opposite the discharge connection piece. This makes it possible to prevent fiber deposits in the bottom area of the housing by supplying fresh air.

Der der Erfindung zugrundeliegende Gedanke wird in der nachfolgenden Beschreibung anhand eines Ausführungsbeispieles, das in der Zeichnung dargestellt ist, näher erläutert. Es zeigt:

Fig. 1
einen Längsschnitt durch eine erfindungsgemäße Vorrichtung,
Fig. 2
eine vergrößerte Ansicht der Einzelheit "X" der Fig. 1 in einem um 90° gedrehten Schnitt,
Fig. 3
eine Ansicht auf die Öffnerscheibe in Richtung der Linie A-A der Fig. 1,
Fig. 3a
eine Ansicht der Öffnerscheibe nach Fig. 3 in Richtung des Pfeiles III,
Fig. 4
eine Ansicht auf die Gegenöffnerscheibe der Vorrichtung nach Fig. 1 gemäß der Linie B-B,
Fig. 4a
eine Ansicht auf die Gegenöffnerscheibe nach Fig. 4 in Richtung des Pfeiles IV und
Fig. 5
einen Querschnitt durch die Vorrichtung nach Fig. 1 gemäß der Linie C-C.
The idea on which the invention is based is explained in more detail in the following description using an exemplary embodiment which is illustrated in the drawing. It shows:
Fig. 1
a longitudinal section through a device according to the invention,
Fig. 2
2 shows an enlarged view of the detail “X” in FIG. 1 in a section rotated through 90 °,
Fig. 3
2 shows a view of the opening disk in the direction of line AA in FIG. 1,
Fig. 3a
3 in the direction of arrow III,
Fig. 4
2 shows a view of the counter-opening disk of the device according to FIG. 1 along line BB,
Fig. 4a
4 in the direction of arrow IV and
Fig. 5
a cross section through the device of FIG. 1 along the line CC.

Die Vorrichtung 1 umfaßt ein zylindrisches Gehäuse 2, dessen unterer Bereich konisch zulaufend zum Boden 3 des Gehäuses 2 hin ausgebildet ist. An der Außenseite des Bodens 3 des Gehäuses 2 befindet sich zentrisch ein Ringflansch 4, der gleitbeweglich einen sich in das Gehäuse 2 erstreckenden Zuleitungs-Anschlußstutzen 5 aufnimmt. In seiner veränderlichen Position innerhalb des Ringflansches 4 ist der Zuleitungs-Anschlußstutzen 5 durch einen mit ihm gekoppelten Zahnstangentrieb 6 festgelegt. Durch den Zuleitungs-Anschlußstutzen 5 strömt ein unter Saugdruck stehender, mit Faserflocken beladener Transportluftstrom von einer Faserflocken liefernden Maschine in Richtung des Pfeiles D in die Vorrichtung 1. Innerhalb des Gehäuses 2 ist der Zuleitungs-Anschlußstutzen 5 an einen Hohlzylinder 7 angeschlossen, wobei der untere Bereich des Hohlzylinders 7 von dem Zuleitungs-Anschlußstutzen 5 aus sich kegelstumpfförmig erweiternd ausgeführt ist. Die parallel zueinander verlaufenden Wände des Hohlzylinders 7 und des Gehäuses 2 bilden zwischen sich eine Ringkammer 8, von der im unteren Bereich tangential ein Ableitungs-Anschlußstutzen 9 abgeht. Des weiteren mündet in den unteren Bereich der Ringkammer 8 tangential ein dem Ableitungs-Anschlußstutzen gegenüberliegender Frischluft-Zufuhrstutzen 10 ein. Zur Zufuhr von Frischluft in die Ringkammer 8 besitzt dieser Stutzen 10 in seinem Innern eine Stellklappe 11. Damit kann Frischluft in Richtung des Pfeiles E in die Ringkammer 8 einströmen, die Faserablagerungen vermeidet. An den Ableitungs-Anschlußstutzen 9 ist eine nichtdargestellte Saugzugleitung eines Ventilators angeschlossen.The device 1 comprises a cylindrical housing 2, the lower region of which is designed to taper towards the bottom 3 of the housing 2. On the outside of the bottom 3 of the housing 2 there is an annular flange 4, which slidably receives a supply connection piece 5 extending into the housing 2. In its variable position within the ring flange 4, the supply connection piece 5 is fixed by a rack and pinion drive 6 coupled to it. Through the supply connection piece 5 flows under suction pressure, loaded with fiber flakes transport air flow from a fiber flake machine in the direction of arrow D into the device 1. Inside the housing 2, the supply connection piece 5 is connected to a hollow cylinder 7, the lower one Area of the hollow cylinder 7 from the supply connection piece 5 is designed to expand in the shape of a truncated cone. The walls of the hollow cylinder 7 and the housing 2, which run parallel to one another, form between them an annular chamber 8, from which a discharge connecting piece 9 extends tangentially in the lower region. Furthermore, in the lower region of the annular chamber 8 a tangential one opposite the discharge connecting piece opens Fresh air supply nozzle 10 a. For the supply of fresh air into the annular chamber 8, this connection piece 10 has a regulating flap 11 in its interior. Fresh air can thus flow into the annular chamber 8 in the direction of arrow E, which avoids fiber deposits. An unillustrated suction line of a fan is connected to the discharge connection piece 9.

Das Gehäuse 2 weist an seinem oberen Ende außenseitig einen umlaufenden Ringflansch 12 auf, der über gleichmäßig über den Umfang verteilte Schrauben 13 mit einer Abdeckringscheibe 14 verbunden ist. Die Öffnung 15 der Abdeckringscheibe 14 ist durch einen auf derselben aufliegenden Deckel 16 verschlossen. Gleichmäßig über den Umfang verteilte Schraubverbindungen 17 sichern den Deckel 16 in seiner Lage. Zentrisch durch den Deckel 16 erstreckt sich eine Antriebswelle 18 für eine innerhalb des Gehäuses 2 liegende Öffnerscheibe 19. Die Antriebswelle 18 stützt sich in einem Lager 20 ab, das in einem auf der Außenseite des Deckels 16 befestigten Lagerbock 21 mit zugehörigem Lagerdeckel 22 untergebracht ist. Das über den Lagerdeckel 22 des Lagerbockes 21 vorstehende Ende der Antriebswelle 18 trägt drehfest ein Antriebsrad 23, das über ein Getriebe an einen Antriebsmotor anschließbar ist.The housing 2 has at its upper end on the outside a circumferential ring flange 12 which is connected to a cover washer 14 by means of screws 13 distributed uniformly over the circumference. The opening 15 of the cover ring disk 14 is closed by a cover 16 resting thereon. Screw connections 17 distributed uniformly over the circumference secure the cover 16 in its position. A drive shaft 18 extends centrally through the cover 16 for an opening disk 19 located within the housing 2. The drive shaft 18 is supported in a bearing 20 which is accommodated in a bearing block 21 fastened on the outside of the cover 16 with the associated bearing cover 22. The end of the drive shaft 18 protruding beyond the bearing cover 22 of the bearing block 21 carries a drive wheel 23 in a rotationally fixed manner, which can be connected to a drive motor via a gear.

Das in das Gehäuse 2 hineinragende Ende der Antriebswelle 18 trägt drehfest einen Halteflansch 24 für die Öffnerscheibe 19. Der auf der Antriebswelle 18 über eine Nut-Feder-Verbindung 25 festgelegte Halteflansch 24 weist einstückig eine umlaufende Ringschulter 26 auf, deren Abstand von der mit dem Ende der Antriebswelle 18 fluchtenden Außenseite des Halteflansches 24 der Dicke der Öffnerscheibe 19 entspricht. An der Ringschulter 26 liegt die Öffnerscheibe 19 an, wobei sich der Halteflansch 24 in eine mit ihm korrespondierende Mittenbohrung 27 der Öffnerscheibe 19 erstreckt. Über gleichmäßig über den Umfang der Ringschulter 26 verteilte Schraubverbindungen 28 ist die Öffnerscheibe 19 an der Ringschulter 26 befestigt. Die im Durchmesser geringfügig größer als der Durchmesser des Hohlzylinders 7 ausgeführte Öffnerscheibe 19 ist an ihrer zu dem Hohlzylinder 7 hingewandten Seite mit spitzen Stiften 29 bestückt, die schräg nach außen verlaufen. Die Stifte 29 sind in Form von sechs in gleichem Abstand zueinanderliegenden Sichellinien 30 auf der Öffnerscheibe 19 verteilt. Hierbei sind die Stifte in entsprechend schräg ausgeführte Bohrungen 31 der Öffnerscheibe 19 eingesetzt. Ein an der Innenseite des Deckels 16 befestigter Ringflansch 32 umgibt die Öffnerscheibe konzentrisch. Der Öffnerscheibe 19 gegenüberliegend sind konzentrisch, gleichmäßig über den Umfang verteilte Entlüftungsbohrungen 33 in den Deckel 16 eingelassen. Auf diese Weise kann es bei rotierender Öffenrscheibe 19 nicht zu Faser-Ablagerungen in dem durch die Öffnerscheibe 19, den Ringflansch 32 und den Deckel 16 begrenztem Raum kommen, da in dem Ringspalt 34 zwischen der Öffnerscheibe 19 und Ringflansch 32 durch den an der Unterseite der Öffnerscheibe 19 vorbeigleitenden Faser-Luftstrom ein Sog entsteht.The end of the drive shaft 18 protruding into the housing 2 carries a holding flange 24 for the opening disk 19 in a rotationally fixed manner. The holding flange 24 fixed on the drive shaft 18 via a tongue and groove connection 25 has in one piece a circumferential annular shoulder 26, the distance of which from that with the End of the drive shaft 18 corresponds to the outside of the holding flange 24 aligned with the thickness of the opening disk 19. The opening disk 19 bears on the annular shoulder 26, the holding flange 24 being in a corresponding one with it Center bore 27 of the opening disk 19 extends. The opening disk 19 is fastened to the annular shoulder 26 by means of screw connections 28 distributed uniformly over the circumference of the annular shoulder 26. The opening disc 19, which is slightly larger in diameter than the diameter of the hollow cylinder 7, is equipped on its side facing the hollow cylinder 7 with pointed pins 29 which run obliquely outwards. The pins 29 are distributed in the form of six equally spaced crescent lines 30 on the opening disk 19. Here, the pins are inserted in correspondingly slanted bores 31 of the opening disk 19. An annular flange 32 fastened to the inside of the cover 16 concentrically surrounds the opening disk. Opposing the opening disk 19 are concentric, evenly distributed over the circumference vent holes 33 in the cover 16. In this way, with rotating opening disk 19, fiber deposits cannot occur in the space delimited by the opening disk 19, the ring flange 32 and the cover 16, since in the annular gap 34 between the opening disk 19 and the ring flange 32 by the on the underside of the Opener disk 19 passing fiber air flow creates a suction.

Der koaxial zu der Öffnerscheibe 19 angeordnete Hohlzylinder 7 endet mit seiner freien Stirnseite in einem bestimmten, parallelen Abstand zu der Öffnerscheibe 19, wobei dieser Abstand mit Hilfe des Zahnstangentriebes 6 in Abhängigkeit von der Art des Faser-Luftstromes zur Erzielung eines optimalen Öffnungsgrades des Fasergutes variiert werden kann. Der Öffnerscheibe 19 liegt eine in die Stirnseite des Hohlzylinders 7 eingesetzte, kreissegmentförmige Gegenöffnerscheibe 35 gegenüber. Die feststehende, mit spitzen Stiften 36 bestückte Gegenöffnerscheibe 35 schließt mit ihrer Sehne 37 einen Umfangswinkel α von ca. 200° ein, d.h. die Gegenöffnerscheibe 35 verschließt mehr als die Hälfte der Stirnseite des Hohlzylinders 7. Die sich somit ergebende verkleinerte Austrittsöffnung 38 des Hohlzylinders 7 führt den Faser-Luftstrom in komprimierter Form zu der Öffnerscheibe 19, die im Zusammenwirken mit der Gegenöffnerscheibe 35 das Fasergut öffnet. Die in der Drehrichtung der Öffnerscheibe 19 geneigt ausgeführten Stifte 36 der Gegenöffnerscheibe 35 sind von einem freien Bereich 39 aus in Radiallinien 40 auf der Oberseite der Gegenöffnerscheibe 35 verteilt, wobei die Stifte jedoch nur in einem vom Durchmesser der Gegenöffnerscheibe 35 ausgehenden Winkelbereich β von ca. 120° angeordnet sind. Zur Erhöhung der Verweildauer des Fasergutes zwischen der Öffnerscheibe 19 und der Gegenöffnerscheibe 35 ist an der Außenseite des Hohlzylinders 7 eine kreisabschnittförmige Abschirmung 41 befestigt, deren freies Ende gleitbeweglich an der Außenseite des an dem Deckel 16 angebrachten Ringflansches 32 anliegt. Die Abschirmung 41 erstreckt sich jedoch nur über den Winkelbereich β der BeStiftung der Gegenöffnerscheibe 35, so daß für den Austritt 42 des Fasergutes zwischen der Öffnerscheibe 19 und der Gegenöffnerscheibe 35 ein Winkelbereich von ca. 240° verbleibt. Von dem Austritt 42 gelangt der Faser-Luftstrom in Richtung des Pfeiles G wendelförmig innerhalb der Ringkammer 8 zu dem Ableitungs-Anschlußstutzen 9 und tritt aus diesem in Richtung des Pfeiles F aus.The hollow cylinder 7 arranged coaxially to the opening disk 19 ends with its free end face at a certain, parallel distance from the opening disk 19, this distance varying with the aid of the rack and pinion drive 6 depending on the type of fiber-air flow in order to achieve an optimal degree of opening of the fiber material can be. The opening disk 19 is opposite a circular segment-shaped counter opening disk 35 inserted into the end face of the hollow cylinder 7. The fixed counter-opening disc 35, which is equipped with pointed pins 36, encloses with its chord 37 a circumferential angle α of approximately 200 °, ie the counter-opening disc 35 closes more than half of the end face of the hollow cylinder 7. The resulting reduced outlet opening 38 of the hollow cylinder 7 leads the fiber air flow in compressed form to the opening disk 19, which in cooperation with the counter opening disk 35 opens the fiber material. The pins 36 of the counter-opener disk 35, which are inclined in the direction of rotation of the opener disk 19, are distributed from a free area 39 in radial lines 40 on the upper side of the counter-opener disk 35, the pins, however, only in an angular range β of approx. 120 ° are arranged. To increase the residence time of the fiber material between the opening disk 19 and the counter-opening disk 35, a circular section-shaped shield 41 is attached to the outside of the hollow cylinder 7, the free end of which abuts the outside of the ring flange 32 attached to the cover 16 in a slidable manner. The shield 41, however, extends only over the angular range β of the fitting of the counter-opening disc 35, so that an angle range of approximately 240 ° remains between the opening disc 19 and the counter-opening disc 35 for the outlet 42 of the fiber material. From the outlet 42, the fiber-air flow in the direction of arrow G is helical within the annular chamber 8 to the discharge connection piece 9 and exits from it in the direction of arrow F.

Die vorstehende Zeichnungsbeschreibung hat die Vorrichtung in ihren Einzelheiten sowie in ihrer Anwendung verdeutlicht. Es versteht sich jedoch für den Fachmann, daß der Grundgedanke der vorliegenden Erfindung eine wesentlich breitere Anwendung finden kann, und nicht auf das hier speziell betrachtete Ausführungsbeispiel beschränkt ist.The above description of the drawing has clarified the device in its details and in its application. However, it is understood by the person skilled in the art that the basic idea of the present invention can be used much more broadly and is not restricted to the exemplary embodiment considered here in particular.

Claims (16)

  1. Device for opening flocculent fibrous material formed from natural or synthetic fibres, which device comprises a housing (2) with an opening disc (19) incorporated therein, and which device is incorporated in a pneumatic conveying path for processing the fibrous material via a supply line connecting piece and a discharge line connecting piece, characterised in that the supply line connecting piece (5), which terminates in the housing (2) at the lower end thereof, passes into an open-topped hollow cylinder (7), which extends into the cylindrical housing (2) so as to form an annular chamber (8), said housing being connected to the discharge line connecting piece (9), a driven opening disc (19) which covers the hollow cylinder (7) being disposed at a predetermined parallel spacing from the free end face of the hollow cylinder (7) and being provided with pointed pins (29) in the direction of the hollow cylinder (7).
  2. Device according to claim 1, characterised in that a stationary counter-opening disc (35), which is configured like a segment of a circle, is inserted into the end face of the hollow cylinder (7) and provided with pointed pins (36) in the direction of the opening disc (19).
  3. Device according to claims 1 and 2, characterised in that the chord (37) of the segment-shaped counter-opening disc (35) extends at a spacing from the diameter of the counter-opening disc (35), which diameter is defined by a peripheral angle (α) of approx. 200°.
  4. Device according to one or more of claims 1 to 3, characterised in that the counter-opening disc (35) is only provided with pins (36) in a sector (β) of approx. 120°.
  5. Device according to one or more of claims 1 to 4, characterised in that the pins (36) of the counter-opening disc (35) are disposed so as to extend radially outwardly in straight lines from a free central region (39).
  6. Device according to one or more of claims 1 to 5, characterised in that the pins (36) of the counter-opening disc (35) are mounted so as to be inclined in the direction of rotation of the opening disc (19).
  7. Device according to one or more of claims 1 to 6, characterised in that the pins (29) of the opening disc (19) are disposed so as to extend towards the periphery in crescent-shaped lines (30) from a free central region.
  8. Device according to one or more of claims 1 to 7, characterised in that the pins (29) of the opening disc (19) are mounted so as to be outwardly inclined.
  9. Device according to one or more of claims 1 to 8, characterised in that the opening disc (19) is surrounded by an annular flange (32), which is mounted on the cover (16) of the housing (2), and a protective screen (41) slidingly abuts against the outside of said annular flange, which screen is mounted on the hollow cylinder (7) and extends beyond the periphery of the pin region of the counter-opening disc (35).
  10. Device according to one or more of claims 1 to 9, characterised in that the opening disc (19) is connected in its central region to a drive shaft (18) via a retaining flange (24), which drive shaft extends through a bearing block (21) mounted on the cover (16) of the housing (2) and is provided terminally with a drive wheel (23) connected to a driving motor via a gear.
  11. Device according to one or more of claims 1 to 10, characterised in that air-release vents (33) are provided in the cover (16) of the housing (2) and terminate in the area defined by the opening disc (19) and the annular flange (32).
  12. Device according to one or more of claims 1 to 11, characterised in that the lower region of the hollow cylinder (7) has a frustoconical configuration, the diameter of said hollow cylinder being greater than the diameter of the supply line connecting piece (5).
  13. Device according to one or more of claims 1 to 12, characterised in that the supply line connecting piece (5), which is connected to the hollow cylinder (7) internally of the housing (2), is accommodated in a vertically adjustable manner in an annular flange (4), which is mounted on the external surface of the base (3) of the housing (2).
  14. Device according to one or more of claims 1 to 13, characterised in that the vertical adjustment of the supply line connecting piece (5), which carries the hollow cylinder (7), is effected via a rack and pinion arrangement (6).
  15. Device according to one or more of claims 1 to 14, characterised in that the lower region of the housing (2) has a configuration which tapers conically towards the base (3) of the housing (2), the discharge line connecting piece (9) extending tangentially from this region.
  16. Device according to one or more of claims 1 to 15, characterised in that a fresh air inlet passage (10), which is provided with an adjustment flap (11), terminates in the conical region of the housing (2) opposite the discharge line connecting piece (9).
EP92905486A 1991-02-20 1992-02-17 Device for opening flocculent fibrous material Expired - Lifetime EP0572495B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4105189 1991-02-20
DE4105189A DE4105189C2 (en) 1991-02-20 1991-02-20 Device for opening flaky fiber material
PCT/DE1992/000119 WO1992014872A1 (en) 1991-02-20 1992-02-17 Device for opening flocculent fibrous material

Publications (2)

Publication Number Publication Date
EP0572495A1 EP0572495A1 (en) 1993-12-08
EP0572495B1 true EP0572495B1 (en) 1994-12-21

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US (1) US5437080A (en)
EP (1) EP0572495B1 (en)
CN (1) CN1036409C (en)
AT (1) ATE116011T1 (en)
AU (1) AU660961B2 (en)
CA (1) CA2104117A1 (en)
DE (3) DE4105189C2 (en)
DK (1) DK0572495T3 (en)
ES (1) ES2069993T3 (en)
NO (1) NO932929L (en)
PL (1) PL169078B1 (en)
PT (1) PT100131A (en)
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BE1009183A3 (en) * 1995-03-08 1996-12-03 Houget Duesberg Bosson Device for opening fiber flakes.
DE19536883A1 (en) * 1995-10-04 1997-04-10 Josef Stummer Device for opening flaky fiber material
US20080257882A1 (en) * 2007-04-20 2008-10-23 Bioinnovations Oy Vessel for accurate analysis
CA2687594C (en) * 2007-05-23 2016-01-19 Alberta Research Council Inc. Decortication process
EP2395138A1 (en) * 2010-06-10 2011-12-14 Recuperación de Materiales Textiles, S.A. Fiber metering device
CN104294410B (en) * 2014-09-30 2016-11-23 泉州市中研智能机电研究院有限公司 A kind of cashmere fibre-opening unit having
CN107198265A (en) * 2017-06-30 2017-09-26 南通烟滤嘴有限责任公司 Clearance adjustable type air-opening device
IT202000026203A1 (en) * 2020-11-03 2022-05-03 Fisi Fibre Sintetiche Spa PROCEDURE AND PLANT FOR THE CREATION OF WADDING FROM A RECYCLED PADDED TEXTILE PRODUCT
CN112680833B (en) * 2020-12-18 2022-05-17 湖南仁瑞无纺制品有限公司 Cotton fabrics production is with opening device

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US431665A (en) * 1890-07-08 Machine for delinting cotton-seed
DE478760C (en) * 1929-07-03 Ackermann & Schmitt Circumferential, cylindrical brush for livestock care
DE100033C (en) *
GB478760A (en) * 1936-11-05 1938-01-25 Arthur Greaves Improvements in crighton openers
FR929253A (en) * 1946-06-18 1947-12-22 Process for opening and peeling fibrous material and machine for carrying out this process
US2747232A (en) * 1952-07-03 1956-05-29 Jackson & Church Company Process for decorticating fibrous materials
DE1009284B (en) * 1956-01-26 1957-05-29 Siemens Ag Electric motor with squirrel cage for frequent switching on, especially drive motor for sugar centrifuges
DE1151453B (en) * 1959-01-14 1963-07-11 Giddings & Lewis Fraser Ltd Device for opening and mixing fiber material
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GB1009284A (en) * 1964-02-19 1965-11-10 Isolier Und Kaltetechnik Rosto Opening and feeding device for fibre materials, such as asbestos, slag wool or the like
CA965214A (en) * 1972-10-06 1975-04-01 Heino Altosaar Flax decorticator
US4369548A (en) * 1980-07-23 1983-01-25 Malinak Frank J Depither
DE3333750A1 (en) * 1983-09-19 1985-04-18 Trützschler GmbH & Co KG, 4050 Mönchengladbach DEVICE AND METHOD FOR OPENING AND CLEANING FIBER GOODS

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CA2104117A1 (en) 1992-08-21
PT100131A (en) 1994-04-29
DE4105189C2 (en) 1995-02-23
TR27150A (en) 1994-11-09
PL169078B1 (en) 1996-05-31
AU660961B2 (en) 1995-07-13
ATE116011T1 (en) 1995-01-15
NO932929D0 (en) 1993-08-18
CN1036409C (en) 1997-11-12
DE4105189A1 (en) 1992-08-27
CN1064322A (en) 1992-09-09
NO932929L (en) 1993-08-18
ES2069993T3 (en) 1995-05-16
DE9104369U1 (en) 1991-09-26
DK0572495T3 (en) 1995-06-06
DE59201027D1 (en) 1995-02-02
WO1992014872A1 (en) 1992-09-03
US5437080A (en) 1995-08-01
EP0572495A1 (en) 1993-12-08
AU1272492A (en) 1992-09-15

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