EP0649605A2 - Method and device for separating tobacco fibres - Google Patents

Method and device for separating tobacco fibres Download PDF

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Publication number
EP0649605A2
EP0649605A2 EP94116041A EP94116041A EP0649605A2 EP 0649605 A2 EP0649605 A2 EP 0649605A2 EP 94116041 A EP94116041 A EP 94116041A EP 94116041 A EP94116041 A EP 94116041A EP 0649605 A2 EP0649605 A2 EP 0649605A2
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EP
European Patent Office
Prior art keywords
tobacco
fibers
channel walls
blown air
trajectories
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Granted
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EP94116041A
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German (de)
French (fr)
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EP0649605A3 (en
EP0649605B1 (en
Inventor
Manfred Dipl.-Ing. Kaluza
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Koerber Technologies GmbH
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Hauni Maschinenbau GmbH
Koerber AG
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/39—Tobacco feeding devices

Definitions

  • the invention relates to a method for separating tobacco or the like fibers moving on channeled trajectories.
  • the invention also relates to a device for separating tobacco fibers which have been converted by an acceleration means into trajectories delimited by channel walls.
  • similar fibers generally means fibers made of smokable material, for example also made of tobacco substitutes.
  • quality features relate to various product properties in a defined range of variation, such as the uniformity of the tobacco distribution in the cigarettes, weight fluctuations, filling power, hardness, fiber length and head quality of the cigarettes.
  • the quality features mentioned depend crucially, among other things, on the most complete separation possible, even distribution and filling of the tobacco fibers in the so-called distributor of the cigarette machine.
  • the tobacco fibers are shortened in an undesirable manner due to the sometimes very rough mechanical effects on the tobacco.
  • the invention is based, to take measures for a gentle tobacco separation of the tobacco fibers the task.
  • the tobacco fibers are acted upon alternately from opposite sides along their trajectory by blowing air guided essentially transversely to the direction of movement or with a component in the direction of movement of the tobacco fibers.
  • air guided essentially transversely to the direction of movement or with a component in the direction of movement of the tobacco fibers By alternately blowing such a tobacco shower, the tobacco fibers are deflected several times from their main direction of movement, the faster lateral air flow loosening clumps and separating the tobacco fibers.
  • an optimal dissolving and separating effect is achieved in that the tobacco fibers are acted upon by the blown air at alternately offset locations on the sides delimiting the trajectories.
  • the trajectories expediently extend in the substantially vertical direction of fall of the tobacco fibers.
  • the device for carrying out the method described at the outset is formed by blowing air openings which alternately emerge along the trajectory of the tobacco fibers on opposite channel walls and are oriented essentially transversely to the trajectory or with a component in the direction of flight of the tobacco fibers. In this way, a targeted, concentrated, rapid blown air flow can be directed towards the tobacco shower flying past, which is thus alternately deflected against the opposite channel walls and thereby fanned out or detached and separated with respect to its fibers.
  • the blown air openings are arranged on alternately opposite parts of the duct walls.
  • the blown air openings can be designed in different ways within the meaning of the invention, for example designed as rows of holes. According to a preferred embodiment of the invention, the blown air openings are designed as slots which extend over the width of the channel walls.
  • the blown air deflection according to the invention can advantageously be integrated into a conventional distributor of a cigarette machine in which the channel walls delimit a substantially vertical chute for the tobacco fibers.
  • the blown air openings can best be realized according to one embodiment in that the blown air openings are assigned to nozzle boxes integrated in the channel walls.
  • the trajectories of the tobacco fibers required as a prerequisite for the lateral blowing air can best be achieved, according to an additional proposal, in that the accelerating means is a rotating beater roller which interacts with a tobacco discharging roller from a storage chute.
  • the chute opens on the underside of a tobacco fibers through a cross-air flow into a sighting device that transports a strand building zone.
  • the advantage achieved by the invention is that the tobacco is deflected several times from its predetermined trajectory by the offset lateral blowing and thereby on gentle, Tobacco sparing way is isolated. In the end, this more isolated tobacco, which has retained its fiber length, results in a more even tobacco distribution, less weight fluctuations, greater hardness and a more uniform, better head quality of the cigarettes.
  • the figure shows schematically the distributor of a cigarette rod machine in longitudinal section.
  • the distributor which is only partially shown for an understanding of the invention, has a storage chute 1 with a tobacco supply 2 and a removal device 3, which consists of a removal roller 4 and a beater roller 6.
  • the shower 7 of tobacco fibers which is removed from the storage shaft 1 by the removal device 3, enters a funnel-shaped drop shaft 8, on the underside of which a viewing device 9 forming a presifter through blowing air nozzles 12 associated with a cross-air flow from a pressure chamber 11 the tobacco fibers emerging from the drop shaft 8 transferred a strand build-up zone described below.
  • the transverse air flow separates lighter tobacco fibers 13 from heavier tobacco fibers 14 (tobacco ribs) and conveys them in the direction of arrow 16 to the strand building zone.
  • Some lighter tobacco fibers 13 sink down with the heavier tobacco ribs 14. You get through a rotary valve 17 into a viewing shaft 18, in which the heavier tobacco ribs 14 sink further down and are discharged, while the lighter tobacco fibers 13 rise due to the injector effect of a blast air jet from a nozzle 19 forming a re-sifter and into the stream of lighter fibers 13 are returned.
  • the tobacco fibers With the support of further blowing air nozzles 21 of a pressure chamber 22 the tobacco fibers are transferred to a guideway in the form of a guide surface 23, on which they are built up into a tobacco stream 24 of loosened and spreading tobacco fibers, blown air and tobacco particles forming a wall flow moving closely along the guide surface 23.
  • the loosened and spreading tobacco stream 24 arrives in a strand build-up zone 28 to a suction strand conveyor 29, to which a suction pull for forming and holding a tobacco strand is applied from the rear by the suction effect of a vacuum chamber 31. Excess blown air escapes through a sieve 32 into a relaxation space 33.
  • the suction line conveyor 29 rotates in a tobacco channel 34 which is laterally delimited by two channel cheeks 36 and 37.
  • the end section 23a of the guide surface 23 is aligned with one of the channel cheeks 36, so that a seamless, smooth transition of the guide surface to the tobacco channel 34 is ensured.
  • the end section 23a of the guide surface 23 is designed as a guide body 39 which can be pivoted about a pivot axis 38 in order to ensure better accessibility of the device in the event of faults.
  • the beater roller 6 knocking the tobacco out of the removal roller 4 serves as an accelerating means for the tobacco shower 7, which in this way is converted into a downward main trajectory (arrow 41).
  • the chute 8 is delimited by opposite, downwardly converging duct walls 42 and 43, into the alternately offset blowing air openings in the form of slots 44 and 46 extending across the width of the duct walls (perpendicular to the plane of the drawing) are let in.
  • the slots 44 and 46 are aligned essentially transversely or with a slight component in the direction of the flight path 41 of the tobacco shower 7.
  • the slots 44 and 46 are fed with blown air from nozzle boxes 47 and 48 arranged on the rear of the channel walls 42 and 43. Due to the alternately against the downwardly thrown tobacco shower 7 essentially transverse air flow from the slots 44 and 46, the tobacco shower 7 is alternately deflected from its main trajectory 41 and the tobacco fibers contained therein detached from one another, so that at the exit of the chute 8 a largely loosened tobacco shower 7 is transferred to the viewing device 9.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Abstract

The invention relates to the separation of tobacco fibres within the distributor of a cigarette-strand machine. The object is to carry out the separation effectively and in a way which treats the tobacco carefully. This is achieved within a falling shaft (8) of the distributor, into which the tobacco (7) is transferred in a manner accelerated downwards in a main flightpath (41). Provided in the falling shaft (8) limited by mutually opposite channel walls (42, 43) are alternately offset air slits (44, 46), through which blowing air is directed essentially transversely to the flightpath (41) towards the tobacco flying downwards, with the result that the latter is alternately deflected laterally out of its flightpath. The lateral deflection is advantageously associated with a loosening and separation of the tobacco fibres which have an advantageous effect on the quality of the finished cigarettes. <IMAGE>

Description

Die Erfindung betrifft ein Verfahren zum Vereinzeln von auf kanalisierten Flugbahnen bewegten Tabak- oder dergleichen Fasern.The invention relates to a method for separating tobacco or the like fibers moving on channeled trajectories.

Die Erfindung betrifft außerdem eine Vorrichtung zum Vereinzeln von durch ein Beschleunigungsmittel in durch Kanalwände begrenzte Flugbahnen überführte Tabakfasern.The invention also relates to a device for separating tobacco fibers which have been converted by an acceleration means into trajectories delimited by channel walls.

Unter dem Begriff "dergleichen Fasern" werden allgemein Fasern aus rauchfähigem Material, beispielsweise auch aus Tabakersatzstoffen verstanden.
Bei der Herstellung von Zigaretten kommt der Einhaltung bestimmter Qualitätsmerkmale der Endprodukte, d. h. der fertigen Zigaretten oder Filterzigaretten eine besondere Bedeutung zu. Diese Qualitätsmerkmale betreffen jeweils in definierter Schwankungsbreite diverse Produkteigenschaften, wie die Gleichmäßigkeit der Tabakverteilung in den Zigaretten, Gewichtsschwankungen, Füllkraft, Härte, Faserlänge und Kopfqualität der Zigaretten.
Die genannten Qualitätsmerkmale hängen unter anderem entscheidend von einer möglichst kompletten Vereinzelung, gleichmäßigen Verteilung und Aufschüttung der Tabakfasern im sogenannten Verteiler der Zigarettenmaschine ab.
Es sind bereits vielfältige Versuche unternommen worden, um eine möglichst komplette Vereinzelung der Fasern zu erreichen, indem Tabak im Verteiler der Zigarettenmaschine mehrfach unter Auflösung von Verklumpungen von einem Förderer auf einen nachgeordneten Förderer überführt und dabei zunehmend vereinzelt wird (US-Patente 3 757 800, 3 825 152) oder mit Hilfe von unterschiedlich schnell rotierenden, miteinander kämmenden und mit Mitnehmern besetzten Walzen unter Auseinanderreißen von Verklumpungen vereinzelt wird (US-Patent 4 036 239).The term “similar fibers” generally means fibers made of smokable material, for example also made of tobacco substitutes.
In the manufacture of cigarettes, compliance with certain quality features of the end products, ie the finished cigarettes or filter cigarettes, is of particular importance. These quality features relate to various product properties in a defined range of variation, such as the uniformity of the tobacco distribution in the cigarettes, weight fluctuations, filling power, hardness, fiber length and head quality of the cigarettes.
The quality features mentioned depend crucially, among other things, on the most complete separation possible, even distribution and filling of the tobacco fibers in the so-called distributor of the cigarette machine.
Various attempts have already been made to achieve as complete a separation of the fibers as possible, in that tobacco in the distributor of the cigarette machine is transferred several times from a conveyor to a downstream conveyor with resolution of clumps and is thereby increasingly separated (US Patents 3,757,800, 3,825,152) or with the aid of rollers rotating at different speeds, meshing with one another and equipped with carriers, with the tearing apart of clumps (US Pat. No. 4,036,239).

Durch die dabei zum Teil recht unsanften mechanischen Einwirkungen auf den Tabak werden die Tabakfasern in unerwünschter Weise verkürzt.The tobacco fibers are shortened in an undesirable manner due to the sometimes very rough mechanical effects on the tobacco.

Der Erfindung liegt die Aufgabe zugrunde, Maßnahmen für eine den Tabak schonende Vereinzelung der Tabakfasern zu treffen.The invention is based, to take measures for a gentle tobacco separation of the tobacco fibers the task.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Tabakfasern entlang ihrer Flugbahn wechselweise von gegenüberliegenden Seiten her durch im wesentlichen quer zur Bewegungsrichtung bzw. mit einer Komponente in Bewegungsrichtung der Tabakfasern geführte Blasluft beaufschlagt werden. Durch das wechselweise Anblasen eines derartigen Tabakschauers werden die Tabakfasern mehrmals aus ihrer Hauptbewegungsrichtung abgelenkt, wobei die schnellere seitliche Luftströmung Verklumpungen löst und die Tabakfasern vereinzelt.
Ein optimaler Löse- und Vereinzelungseffekt wird nach einer Weiterbildung dadurch erzielt, daß die Tabakfasern an wechselweise versetzt gegenüberliegenden Stellen der die Flugbahnen begrenzenden Seiten durch die Blasluft beaufschlagt werden.This object is achieved in that the tobacco fibers are acted upon alternately from opposite sides along their trajectory by blowing air guided essentially transversely to the direction of movement or with a component in the direction of movement of the tobacco fibers. By alternately blowing such a tobacco shower, the tobacco fibers are deflected several times from their main direction of movement, the faster lateral air flow loosening clumps and separating the tobacco fibers.
According to a further development, an optimal dissolving and separating effect is achieved in that the tobacco fibers are acted upon by the blown air at alternately offset locations on the sides delimiting the trajectories.

Zweckmäßigerweise erstrecken sich die Flugbahnen in im wesentlichen vertikaler Fallrichtung der Tabakfasern.The trajectories expediently extend in the substantially vertical direction of fall of the tobacco fibers.

Die Vorrichtung zur Durchführung des eingangs bezeichneten Verfahrens wird gebildet durch entlang der Flugbahn der Tabakfasern wechselweise an gegenüberliegenden Kanalwänden austretende, im wesentlichen quer zur Flugbahn bzw. mit einer Komponente in Flugrichtung der Tabakfasern ausgerichtete Blasluftöffnungen. Auf diese Weise läßt sich eine gezielte, konzentrierte, schnelle Blasluftströmung auf den vorbeifliegenden Tabakschauer richten, der damit abwechselnd gegen die einander gegenüberliegenden Kanalwände umgelenkt und dabei aufgefächert bzw. in sich gelöst und bezüglich seiner Fasern vereinzelt wird.The device for carrying out the method described at the outset is formed by blowing air openings which alternately emerge along the trajectory of the tobacco fibers on opposite channel walls and are oriented essentially transversely to the trajectory or with a component in the direction of flight of the tobacco fibers. In this way, a targeted, concentrated, rapid blown air flow can be directed towards the tobacco shower flying past, which is thus alternately deflected against the opposite channel walls and thereby fanned out or detached and separated with respect to its fibers.

Zur Verstärkung und Optimierung des Effektes sind nach einem weiteren Vorschlag die Blasluftöffnungen an wechselweise versetzt gegenüberliegenden Steilen der Kanalwände angeordnet.To reinforce and optimize the effect, according to a further proposal, the blown air openings are arranged on alternately opposite parts of the duct walls.

Die Blasluftöffnungen können im Sinne der Erfindung auf unterschiedliche Weise gestaltet sein, so zum Beispiel als Bohrungsreihen ausgeführt sein. Nach einer bevorzugten erfindungsgemäßen Ausgestaltung sind die Blasluftöffnungen als sich über die Breite der Kanalwände erstreckende Schlitze ausgebildet.
Die erfindungsgemäße Blasluftablenkung läßt sich auf vorteilhafte Weise in einen üblichen Verteiler einer Zigarettenmaschine integrieren, bei dem die Kanalwände einen im wesentlichen senkrechten Fallschacht für die Tabakfasern begrenzen.The blown air openings can be designed in different ways within the meaning of the invention, for example designed as rows of holes. According to a preferred embodiment of the invention, the blown air openings are designed as slots which extend over the width of the channel walls.
The blown air deflection according to the invention can advantageously be integrated into a conventional distributor of a cigarette machine in which the channel walls delimit a substantially vertical chute for the tobacco fibers.

Bei einer derartigen Anordnung lassen sich die Blasluftöffnungen nach einer Ausgestaltung am besten dadurch realisieren, daß die Blasluftöffnungen in die Kanalwände integrierten Düsenkästen zugeordnet sind.
Die als Vorbedingung für die seitliche Blasluftbeaufschlagung erforderlichen Flugbahnen der Tabakfasern lassen sich nach einem zusätzlichen Vorschlag am besten dadurch erzielen, daß das Beschleunigungsmittel eine rotierende, mit einer Tabak aus einem Stauschacht austragenden Entnahmewalze zusammenwirkende Schlägerwalze ist.
Um die auf diese Weise erzielte komplette Vereinzelung der Tabakfasern für den weiteren Strangaufbauprozeß zu erhalten und nutzbar zu machen, ist außerdem vorgesehen, daß der Fallschacht unterseitig in eine Tabakfasern durch eine Querluftströmung in eine Strangaufbauzone überführende Sichteinrichtung einmündet.With such an arrangement, the blown air openings can best be realized according to one embodiment in that the blown air openings are assigned to nozzle boxes integrated in the channel walls.
The trajectories of the tobacco fibers required as a prerequisite for the lateral blowing air can best be achieved, according to an additional proposal, in that the accelerating means is a rotating beater roller which interacts with a tobacco discharging roller from a storage chute.
In order to maintain and utilize the complete separation of the tobacco fibers achieved in this way for the further strand building process, it is also provided that the chute opens on the underside of a tobacco fibers through a cross-air flow into a sighting device that transports a strand building zone.

Der mit der Erfindung erzielte Vorteil besteht darin, daß der Tabak durch das versetzte seitliche Anblasen aus seiner vorgegebenen Flugbahn mehrmals abgelenkt und dabei auf sanfte, Tabak schonende Weise vereinzelt wird. Dieser stärker vereinzelte und in seiner Faserlänge erhalten gebliebene Tabak bewirkt letzten Endes eine gleichmäßigere Tabakverteilung, geringere Gewichtsschwankungen, eine größere Härte sowie eine gleichmäßigere, bessere Kopfqualität der Zigaretten.The advantage achieved by the invention is that the tobacco is deflected several times from its predetermined trajectory by the offset lateral blowing and thereby on gentle, Tobacco sparing way is isolated. In the end, this more isolated tobacco, which has retained its fiber length, results in a more even tobacco distribution, less weight fluctuations, greater hardness and a more uniform, better head quality of the cigarettes.

Die Erfindung wird nachstehend anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The invention is explained below with reference to the embodiment shown in the drawing.

Die Figur zeigt schematisch den Verteiler einer Zigarettenstrangmschine im Längsschnitt.The figure shows schematically the distributor of a cigarette rod machine in longitudinal section.

Der zum Verständnis der Erfindung nur zum Teil dargestellte Verteiler weist einen Stauschacht 1 mit einem Tabakvorrat 2 und einer Entnahmevorrichtung 3 auf, welche aus einer Entnahmewalze 4 und einer Schlägerwalze 6 besteht. Der von der Entnahmevorrichtung 3 aus dem Stauschacht 1 entnommene Schauer 7 aus Tabakfasern gelangt in einen sich trichterförmig verengenden Fallschacht 8, an dessen Unterseite eine einen Vorsichter bildende Sichteinrichtung 9 durch eine Querluftströmung aus einer Druckkammer 11 zugeordneten Blasdüsen 12 die aus dem Fallschacht 8 austretenden Tabakfasern in eine nachfolgend beschriebene Strangaufbauzone überführt. Der quergerichtete Sichtluftstrom trennt leichtere Tabakfasern 13 von schwereren Tabakfasern 14 (Tabakrippen) und fördert sie in Richtung des Pfeils 16 zur Strangaufbauzone ab. Einige leichtere Tabakfasern 13 sinken mit den schwereren Tabakrippen 14 nach unten. Sie gelangen durch eine Zellenradschleuse 17 in einen Sichtschacht 18, in welchem die schwereren Tabakrippen 14 weiter nach unten sinken und ausgetragen werden, während die leichteren Tabakfasern 13 infolge der Injektorwirkung eines Blasluftstrahls aus einer einen Nachsichter bildenden Düse 19 nach oben steigen und in den Strom der leichteren Fasern 13 zurückgeführt werden. Mit Unterstützung weiterer Blasluftdüsen 21 einer Druckkammer 22 werden die Tabakfasern auf eine Führungsbahn in Gestalt einer Führungsfläche 23 überführt, auf der sie zu einem Tabakstrom 24 aufgelockerter und ausgebreiteter Tabakfasern aufgebaut werden, wobei sich Blasluft und Tabakpartikel zu einer dicht an der Führungsfläche 23 entlangbewegten Wandströmung ausbilden. Zur Unterstützung der weiteren Förderung des ausgebreiteten und aufgelockerten Tabakstroms 24 an der Führungsfläche 23 entlang sind Blasluftdüsen 26 einer Druckkammer 27 sowie gegebenenfalls weitere im Verlauf der Führungsfläche 23 angeordnete, in der Zeichnung aber nicht dargestellte Blasluftdüsen vorgesehen.The distributor, which is only partially shown for an understanding of the invention, has a storage chute 1 with a tobacco supply 2 and a removal device 3, which consists of a removal roller 4 and a beater roller 6. The shower 7 of tobacco fibers, which is removed from the storage shaft 1 by the removal device 3, enters a funnel-shaped drop shaft 8, on the underside of which a viewing device 9 forming a presifter through blowing air nozzles 12 associated with a cross-air flow from a pressure chamber 11 the tobacco fibers emerging from the drop shaft 8 transferred a strand build-up zone described below. The transverse air flow separates lighter tobacco fibers 13 from heavier tobacco fibers 14 (tobacco ribs) and conveys them in the direction of arrow 16 to the strand building zone. Some lighter tobacco fibers 13 sink down with the heavier tobacco ribs 14. You get through a rotary valve 17 into a viewing shaft 18, in which the heavier tobacco ribs 14 sink further down and are discharged, while the lighter tobacco fibers 13 rise due to the injector effect of a blast air jet from a nozzle 19 forming a re-sifter and into the stream of lighter fibers 13 are returned. With the support of further blowing air nozzles 21 of a pressure chamber 22 the tobacco fibers are transferred to a guideway in the form of a guide surface 23, on which they are built up into a tobacco stream 24 of loosened and spreading tobacco fibers, blown air and tobacco particles forming a wall flow moving closely along the guide surface 23. To support the further conveyance of the spread and loosened tobacco stream 24 along the guide surface 23, there are blown air nozzles 26 of a pressure chamber 27 and optionally further blown air nozzles arranged in the course of the guide surface 23 but not shown in the drawing.

Der aufgelockerte und ausgebreitete Tabakstrom 24 gelangt in einer Strangaufbauzone 28 zu einem Saugstrangförderer 29, an den durch die Saugwirkung einer Unterdruckkammer 31 von der Rückseite her ein Saugzug zum Bilden und Halten eines Tabakstranges angelegt ist. Überschüssige Blasluft entweicht durch ein Sieb 32 in einen Entspannungsraum 33.
Der Saugstrangförderer 29 läuft in einem Tabakkanal 34 um, der von zwei Kanalwangen 36 und 37 seitlich begrenzt wird. Der Endabschnitt 23a der Führungsfläche 23 ist auf eine der Kanalwangen 36 ausgerichtet, so daß ein lückenloser, glatter Übergang der Führungsfläche zum Tabakkanal 34 gewährleistet ist. Der Endabschnitt 23a der Führungsfläche 23 ist als um eine Schwenkachse 38 abschwenkbarer Leitkörper 39 ausgebildet, um eine bessere Zugänglichkeit der Vorrichtung bei Störungen zu gewährleisten.
Nach der Erfindung dient die den Tabak aus der Entnahmewalze 4 herausschlagende Schlägerwalze 6 als Beschleunigungsmittel für den Tabakschauer 7, der auf diese Weise in eine abwärtsgerichtete Hauptflugbahn (Pfeil 41) überführt wird. Der Fallschacht 8 ist von gegenüberliegenden, nach unten konvergierenden Kanalwänden 42 und 43 begrenzt, in die wechselweise versetzte Blasluftöffnungen in Form von sich über die Breite der Kanalwände (senkrecht zur Zeichenebene) erstreckenden Schlitzen 44 bzw. 46 eingelassen sind. Die Schlitze 44 und 46 sind in wesentlichen quer bzw. mit einer leichten Komponente in Richtung der Flugbahn 41 des Tabakschauers 7 ausgerichtet. Die Schlitze 44 und 46 werden aus an der Rückseite der Kanalwände 42 und 43 angeordneten Düsenkästen 47 bzw. 48 mit Blasluft gespeist. Durch den wechselweise gegen den abwärts geschleuderten Tabakschauer 7 im wesentlichen quergerichteten Blasluftstrom aus den Schlitzen 44 und 46 wird der Tabakschauer 7 wechselweise aus seiner Hauptflugbahn 41 abgelenkt und die in ihm enthaltenen Tabakfasern voneinander gelöst bzw. vereinzelt, so daß am Ausgang des Fallschachtes 8 ein weitestgehend aufgelockerter Tabakschauer 7 in die Sichteinrichtung 9 überführt wird.The loosened and spreading tobacco stream 24 arrives in a strand build-up zone 28 to a suction strand conveyor 29, to which a suction pull for forming and holding a tobacco strand is applied from the rear by the suction effect of a vacuum chamber 31. Excess blown air escapes through a sieve 32 into a relaxation space 33.
The suction line conveyor 29 rotates in a tobacco channel 34 which is laterally delimited by two channel cheeks 36 and 37. The end section 23a of the guide surface 23 is aligned with one of the channel cheeks 36, so that a seamless, smooth transition of the guide surface to the tobacco channel 34 is ensured. The end section 23a of the guide surface 23 is designed as a guide body 39 which can be pivoted about a pivot axis 38 in order to ensure better accessibility of the device in the event of faults.
According to the invention, the beater roller 6 knocking the tobacco out of the removal roller 4 serves as an accelerating means for the tobacco shower 7, which in this way is converted into a downward main trajectory (arrow 41). The chute 8 is delimited by opposite, downwardly converging duct walls 42 and 43, into the alternately offset blowing air openings in the form of slots 44 and 46 extending across the width of the duct walls (perpendicular to the plane of the drawing) are let in. The slots 44 and 46 are aligned essentially transversely or with a slight component in the direction of the flight path 41 of the tobacco shower 7. The slots 44 and 46 are fed with blown air from nozzle boxes 47 and 48 arranged on the rear of the channel walls 42 and 43. Due to the alternately against the downwardly thrown tobacco shower 7 essentially transverse air flow from the slots 44 and 46, the tobacco shower 7 is alternately deflected from its main trajectory 41 and the tobacco fibers contained therein detached from one another, so that at the exit of the chute 8 a largely loosened tobacco shower 7 is transferred to the viewing device 9.

Claims (10)

Verfahren zum Vereinzeln von auf kanalisierten Flugbahnen bewegten Tabak- oder dergleichen Fasern, dadurch gekennzeichnet, daß die Tabakfasern entlang ihrer Flugbahn wechselweise von gegenüberliegenden Seiten her durch im wesentlichen quer zur Bewegungsrichtung bzw. mit einer Komponente in Bewegungsrichtung der Tabakfasern geführte Blasluft beaufschlagt werden.A method for separating tobacco or the like fibers moving on channelized trajectories, characterized in that the tobacco fibers along their trajectory are acted upon alternately from opposite sides by blowing air guided essentially transversely to the direction of movement or with a component in the direction of movement of the tobacco fibers. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Tabakfasern an wechselweise versetzt gegenüberliegenden Stellen der die Flugbahnen begrenzenden Seiten durch die Blasluft beaufschlagt werden.Method according to claim 1, characterized in that the tobacco fibers are acted upon by the blown air at alternately offset locations on the sides delimiting the trajectories. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß sich die Flugbahnen in im wesentlichen vertikaler Fallrichtung der Tabakfasern erstrecken.A method according to claim 1 or 2, characterized in that the trajectories extend in the substantially vertical direction of fall of the tobacco fibers. Vorrichtung zum Vereinzeln von durch ein Beschleunigungsmittel in durch Kanalwände begrenzte Flugbahnen überführte Tabak- oder dergleichen Fasern, gekennzeichnet durch entlang der Flugbahn (41) der Tabakfasern wechselweise an gegenüberliegenden Kanalwänden (42, 43) austretende, im wesentlichen quer zur Flugbahn bzw. mit einer Komponente in Flugrichtung der Tabakfasern ausgerichtete Blasluftöffnungen (44 bzw. 46).Device for separating tobacco or the like fibers, which are converted by an accelerating means into trajectories delimited by channel walls, characterized by alternatingly emerging along the trajectory (41) of the tobacco fibers on opposite channel walls (42, 43), essentially transversely to the trajectory or with a component Blown air openings (44 or 46) aligned in the direction of flight of the tobacco fibers. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Blasluftöffnungen (44, 46) an wechselweise versetzt gegenüberliegenden Stellen der Kanalwände (42, 43) angeordnet sind.Apparatus according to claim 4, characterized in that the blown air openings (44, 46) are arranged at mutually offset locations on the channel walls (42, 43). Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die Blasluftöffnungen (44, 46) als sich über die Breite der Kanalwände (42, 43) erstreckende Schlitze ausgebildet sind.Apparatus according to claim 4 or 5, characterized in that the blown air openings (44, 46) are designed as slots which extend over the width of the channel walls (42, 43). Vorrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß die Kanalwände (42, 43) einen im wesentlichen senkrechten Fallschacht (8) für die Tabakfasern begrenzen.Device according to one of claims 4 to 6, characterized in that the channel walls (42, 43) delimit a substantially vertical chute (8) for the tobacco fibers. Vorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß die Blasluftöffnungen (44, 46) in die Kanalwände (42, 43) integrierten Düsenkästen (47 bzw. 48) zugeordnet sind.Device according to one of claims 4 to 7, characterized in that the blown air openings (44, 46) are associated with nozzle boxes (47 or 48) integrated in the channel walls (42, 43). Vorrichtung nach einem der Ansprüche 4 bis 8, dadurch gekennzeichnet, daß das Beschleunigungsmittel eine rotierende, mit einer Tabak aus einem Stauschacht (1) austragenden Entnahmewalze (4) zusammenwirkende Schlägerwalze (6) ist.Device according to one of claims 4 to 8, characterized in that the accelerating means is a rotating beater roller (6) which interacts with a tobacco discharge roller (4) which discharges tobacco. Vorrichtung nach einem der Ansprüche 4 bis 9, dadurch gekennzeichnet, daß der Fallschacht (8) unterseitig in eine Tabakfasern (13) durch eine Querluftströmung (16) in eine Strangaufbauzone (28) überführende Sichteinrichtung (9) einmündet.Device according to one of claims 4 to 9, characterized in that the chute (8) opens on the underside into a tobacco fiber (13) by means of a cross-air flow (16) into a viewing device (9) which leads to a strand building zone (28).
EP94116041A 1993-10-26 1994-10-12 Method and device for separating tobacco fibres Expired - Lifetime EP0649605B1 (en)

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DE4336453A DE4336453A1 (en) 1993-10-26 1993-10-26 Method and device for separating tobacco fibers
DE4336453 1993-10-26

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EP0649605A2 true EP0649605A2 (en) 1995-04-26
EP0649605A3 EP0649605A3 (en) 1998-08-19
EP0649605B1 EP0649605B1 (en) 2000-03-15

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AT (1) ATE190471T1 (en)
DE (2) DE4336453A1 (en)
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1016349A1 (en) * 1998-12-30 2000-07-05 Fabriques De Tabac Reunies S.A. Method for the distribution of tobacco components and distributor for a smoking article manufacturing machine
US6701933B2 (en) * 1999-01-14 2004-03-09 Hauni Maschinenbau Ag Apparatus for making a stream of tobacco shreds
EP1652437A1 (en) * 2003-08-04 2006-05-03 Japan Tobacco Inc. Cut tobacco feeding device for cigarette manufacturing machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10035692A1 (en) 2000-07-20 2002-01-31 Hauni Maschinenbau Ag Method and device for separating tobacco fibers
DE102005019390A1 (en) * 2005-04-25 2006-10-26 Hauni Maschinenbau Ag Strang making device for double strang machine in tobacco processsing with air flow barrier built into roller room formed from dividing walls of which one is arranged at an obliquye angle to flow of tobacco fibers

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE539063C (en) * 1931-11-25 Muller J C & Co Tobacco spreader for straight cigarette machines
US1999120A (en) * 1930-11-07 1935-04-23 Muller J C & Co Tobacco spreader for rod cigarette making machines
DE613719C (en) * 1933-05-03 1935-12-30 Beco Maschinenfabrik G M B H Arrangement for feeding the tobacco to a cutting machine with rotating knife rollers
DE954137C (en) * 1952-09-12 1956-12-13 Kurt Koerber & Co K G Device for distributing tobacco in a cigar wrapping machine
DE2811882A1 (en) * 1978-03-18 1979-10-04 Barmag Barmer Maschf OPEN-END SPINNING DEVICE
DE4006344A1 (en) * 1990-03-01 1991-09-05 Hauni Werke Koerber & Co Kg Controlling flow of tobacco for cigarette mfr. - involves photoelectric cells to control tobacco level in containers
GB2243529A (en) * 1990-05-02 1991-11-06 Molins Plc Cigarette making machine
DE4136470A1 (en) * 1991-11-06 1993-05-13 Hauni Werke Koerber & Co Kg Formation of two streams of tobacco from single stream - by alternate operation of two jets of air on opposite sides of single stream

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE539063C (en) * 1931-11-25 Muller J C & Co Tobacco spreader for straight cigarette machines
US1999120A (en) * 1930-11-07 1935-04-23 Muller J C & Co Tobacco spreader for rod cigarette making machines
DE613719C (en) * 1933-05-03 1935-12-30 Beco Maschinenfabrik G M B H Arrangement for feeding the tobacco to a cutting machine with rotating knife rollers
DE954137C (en) * 1952-09-12 1956-12-13 Kurt Koerber & Co K G Device for distributing tobacco in a cigar wrapping machine
DE2811882A1 (en) * 1978-03-18 1979-10-04 Barmag Barmer Maschf OPEN-END SPINNING DEVICE
DE4006344A1 (en) * 1990-03-01 1991-09-05 Hauni Werke Koerber & Co Kg Controlling flow of tobacco for cigarette mfr. - involves photoelectric cells to control tobacco level in containers
GB2243529A (en) * 1990-05-02 1991-11-06 Molins Plc Cigarette making machine
DE4136470A1 (en) * 1991-11-06 1993-05-13 Hauni Werke Koerber & Co Kg Formation of two streams of tobacco from single stream - by alternate operation of two jets of air on opposite sides of single stream

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1016349A1 (en) * 1998-12-30 2000-07-05 Fabriques De Tabac Reunies S.A. Method for the distribution of tobacco components and distributor for a smoking article manufacturing machine
WO2000040105A1 (en) * 1998-12-30 2000-07-13 Philip Morris Products S.A. Method for dispensing the constituents of tobacco and dispenser in a machine for manufacturing products that are to be smoked
US6701933B2 (en) * 1999-01-14 2004-03-09 Hauni Maschinenbau Ag Apparatus for making a stream of tobacco shreds
EP1652437A1 (en) * 2003-08-04 2006-05-03 Japan Tobacco Inc. Cut tobacco feeding device for cigarette manufacturing machine
EP1652437A4 (en) * 2003-08-04 2011-02-23 Japan Tobacco Inc Cut tobacco feeding device for cigarette manufacturing machine

Also Published As

Publication number Publication date
DE59409204D1 (en) 2000-04-20
EP0649605A3 (en) 1998-08-19
ATE190471T1 (en) 2000-04-15
ES2144477T3 (en) 2000-06-16
EP0649605B1 (en) 2000-03-15
DE4336453A1 (en) 1995-04-27

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