EP1447015B1 - Zig-Zag classifier for a product flow - Google Patents

Zig-Zag classifier for a product flow Download PDF

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Publication number
EP1447015B1
EP1447015B1 EP04090050A EP04090050A EP1447015B1 EP 1447015 B1 EP1447015 B1 EP 1447015B1 EP 04090050 A EP04090050 A EP 04090050A EP 04090050 A EP04090050 A EP 04090050A EP 1447015 B1 EP1447015 B1 EP 1447015B1
Authority
EP
European Patent Office
Prior art keywords
product stream
separating means
access
roller
side wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04090050A
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German (de)
French (fr)
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EP1447015A1 (en
Inventor
Peter Schumacher
Rolf Lindemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
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Publication date
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Priority to EP04090050A priority Critical patent/EP1447015B1/en
Publication of EP1447015A1 publication Critical patent/EP1447015A1/en
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
    • B07B4/04—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall in cascades
    • 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
    • A24C5/396—Tobacco feeding devices with separating means, e.g. winnowing, removing impurities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/06—Feeding or discharging arrangements

Definitions

  • the invention relates to a viewing means for viewing a product stream, in particular for separating to be processed and non-processed portions of a product stream within a distributor device for feeding a cigarette rod machine, wherein the viewing means is formed as a substantially vertically oriented zig-zag separator and at least one Has access for the product stream to be viewed.
  • the invention is concerned with a method for sifting a product stream, having the features of the preamble of claim 9.
  • a product stream which is usually formed from a plurality of components is supplied to the cigarette rod maker via a distributor device.
  • the product flow is sighted and metered.
  • sizing is meant the separation of portions suitable for processing, such as e.g. The so-called “desired" tobacco fraction, and portions which are unsuitable for processing, e.g. Ribs of tobacco leaves or the like.
  • This sighting takes place within a visual range of the visual means.
  • the introduced via an access in the visual means product flow is spotted by air, namely sorted into the suitable and suitable for processing components.
  • the product stream is entered into the distributor device.
  • the product stream is usually supplied to a tobacco reservoir within the distributor device via a pre-distributor and from there fed to the viewing means by means of an addition roller, a steep conveyor or the like.
  • a singulation roller Prior to passing the product stream into the viewing means via access, a singulation roller causes the product stream to fall into a downwardly leading feed chute, directly and directly into the area of access.
  • This object is achieved by a visual means of the type mentioned above in that in the region of access an insertion aid for the product flow is arranged in the zig-zag sifter, so that the product flow calmed immediately before insertion into the visual means is.
  • this insertion aid it is possible in a surprisingly simple and particularly effective manner to calm and homogenize the product stream immediately before it enters the zigzag sifter, so that the product stream is guided uniformly and continuously into the zigzag sifter and within Zig-zag sifter can be sighted reliably and trouble-free.
  • the insertion is designed as a role, so that the product flow is actively and evenly conveyed in the zig-zag sifter. This also prevents one Damming of parts of the product flow in the area of access, so that the continuous and trouble-free operation of the viewing means and thus the entire distribution device is ensured.
  • the insertion aid comprises a guide element, wherein the guide element is arranged in the transport direction of the product flow in front of the access or the roller.
  • This guiding element calms down the product stream prior to entry. In other words, the free fall of the product stream is quenched prior to access to the zig-zag sifter by the product stream impinges on the guide element and is thereby calmed, so that a uniform and continuous supply is ensured in the zig-zag sifter.
  • the distance between the guide element and the lower side wall is greater than the distance between the upper side wall and the lower side wall.
  • the object is achieved by a method having the features of claim 9.
  • calming the product stream which can also be referred to as deceleration
  • a continuous and uniform supply of the product stream is ensured in the visual means. Damming of parts of the product stream or even segregation, ie an undesired separation of individual components of the product stream can be effectively prevented.
  • the zig-zag classifiers shown in the figures are used to view a product stream, preferably a product stream consisting predominantly of tobacco components, within a distributor device for feeding a cigarette rod machine.
  • the viewing means 10 is designed as a so-called zig-zag classifier 11 and part of a distributor device only partially shown.
  • the zigzag sifter 11 is arranged substantially vertically within the distributor device.
  • the zig-zag classifier 11 has an access 12 for inputting a product stream.
  • the access 12 is formed by side walls, namely an upper side wall 13 and a lower side wall 14, which in turn form an opening 15.
  • the upper side wall 13 is almost perpendicular to the lower side wall 14, and with a distance B, so that the product flow can be performed in the zig-zag classifier 11.
  • a feed chute 16 is arranged in front of it, which adjoins a separating roller 17 or the like connects.
  • the feed chute 16 is funnel-shaped, such that the feed chute 16 tapers in the direction of the access 12.
  • an additional insertion aid 18 is arranged at the narrowest point between the upper side wall 13 and the lower side wall 14, ie in the region of the access 12.
  • the insertion aid 18 is designed as a roller 19. This roller 19 is rotatably mounted on a frame, a housing wall or the like and can also be driven in rotation by means of a drive, not shown.
  • an insertion aid 18 is shown, which is designed as a rotary valve 26.
  • the zig-zag classifier 11 is at least in the region of the access 12 airtight sealable. This means that the rotary valve 26 prevents leakage of air from the zigzag sifter 11 in the region of the access 12 and a suction of ambient air through the access 12 in the zigzag sifter 11.
  • the insertion aid 18 is a roller or a roller 27. In contrast to the roller 19, which has a virtually smooth surface, the roller 27 has a structured surface.
  • Protrusions 28 and recesses 29 are provided on the surface of the roller 27 to enhance the transport of the product stream through the access 12 into the zigzag sifter 11.
  • Particularly advantageous is the formation of the insertion aid 18 as a nail roller 30 or the like (see, for example, Figure 5).
  • the pointed, nail-like projections 31 By the pointed, nail-like projections 31, the entrainment and thus the transport of the product stream, such as tobacco, reliably ensured.
  • the embodiment shown e.g. so-called tobacco nests are dissolved, resulting in an additional homogenization of the product stream.
  • the insertion aid 18 may also comprise a belt conveyor element 32.
  • the belt conveyor element 32 comprises a single lower conveyor belt 33.
  • the conveyor belt 33 is drivable by means of a drive, not shown, and in the area of and simultaneously forming the access 12 in the zig-zag classifier 11.
  • the belt conveyor element 32 may also comprise two conveyor belts, namely the lower conveyor belt 33 and a spaced apart from the lower (not shown) upper conveyor belt. Both conveyor belts then form the access 12 in the region of an opening in the zigzag sifter 11.
  • the embodiment according to FIG. 7 provides a nozzle element 34 as an insertion aid 18.
  • the nozzle member 34 may be formed as a nozzle bar, slot nozzle or the like and serves for the contactless transport of the product stream through the access 12 in the zig-zag classifier 11. This ensures that the product stream, namely, for example, the tobacco is not destroyed.
  • the embodiment according to Figure 2 is substantially the same as that shown in Figure 1, so that the same reference numerals are used for the same parts.
  • the sight 18 as an insertion aid 18 an additional guide element 20.
  • the guide element 20 extends substantially parallel to the upper side wall 13. The distance between the side wall 13 and the guide element 20 is adjustable.
  • the guide element 20 is e.g. detachably arranged on support elements 21, which have slots 22.
  • a free end 23 of the guide element 20 is provided as well as a free end 24 of the upper side wall 13 at a distance A to the lower side wall 14.
  • the distance A for forming an opening 25 between the guide element 20 and the lower side wall 14 is preferably greater than the distance B to form the opening 15 between the upper side wall 13 and the lower side wall 14.
  • the funnel shape is reinforced.
  • a gradual “deceleration” or calming of the product flow is generated.
  • the product flow in the region of the access 12, that is to say below the upper side wall 13 is already calmed down on the lower side wall 14.
  • the guide element 20 is formed approximately triangular in side view. By provided on the side facing away from the upper side wall 13 of the guide element 20 slope of the impinging on the guide element 20 product flow is passed into the region of the opening 25, to then be promoted stepwise to access 12.
  • the two embodiments according to Figures 1 and 2 may also be combined.
  • the insertion aid 18 is formed from at least one additional guide element 20 and a roller 19 in the region of the access 12.
  • the roller 19 may have a textured surface such that the product stream to be delivered can be safely "gripped".
  • the roller 19 grooves, furrows or other elevations and depressions.
  • the method of sifting a product stream is described below:
  • the product stream is usually conducted from a reservoir or reservoir by means of an addition roller or a steep conveyor from a reservoir to the visual means.
  • the separating roller 17 ensures that the tobacco accelerates into the downwardly leading feed chute 16.
  • the tobacco then falls onto the roller 19 or into the area between roller 19 and lower side wall 14, which slows down the free fall, so that the product flow is initially calmed.
  • the product flow in the region of the access 12 is actively guided by the roller 19 into the zigzag sifter 11.
  • the rotation of the roller 19 is generated by the impinging on the roller 19 product flow.
  • the described method ensures uniform and continuous feeding of the product stream consisting of tobacco components and possibly additional components into the zigzag sifter 11.
  • the tobacco falls into the feed chute 16 and at least largely strikes the guide element 20 and slips from there into the opening 25 between the guide element 20 and lower side wall 14.
  • the free fall of the tobacco is first braked, which leads to a reassurance.
  • the then lying on the lower side wall 14 tobacco is then passed through the opening 15 in the zig-zag classifier 11. Characterized in that the product stream is not passed directly from the feed chute 16 coming into the zig-zag classifier 11, but before the Introducing a uniform, continuous and smoothly flowing product flow prevents buildup while ensuring reliable sighting.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Description

Die Erfindung betrifft ein Sichtmittel zum Sichten eines Produktstroms, insbesondere zum Trennen von zu verarbeitenden und von nicht zu verarbeitenden Anteilen eines Produktstroms innerhalb einer Verteilervorrichtung zum Beschicken einer Zigarettenstrangmaschine, wobei das Sichtmittel als im wesentlichen vertikal ausgerichteter Zick-Zack-Sichter ausgebildet ist und mindestens einen Zugang für den zu sichtenden Produktstrom aufweist.The invention relates to a viewing means for viewing a product stream, in particular for separating to be processed and non-processed portions of a product stream within a distributor device for feeding a cigarette rod machine, wherein the viewing means is formed as a substantially vertically oriented zig-zag separator and at least one Has access for the product stream to be viewed.

Des weiteren befaßt sich die Erfindung mit einem Verfahren zum Sichten eines Produktstroms, Mit den Merkmalen des Oberbegriffes des Anspruches 9.Furthermore, the invention is concerned with a method for sifting a product stream, having the features of the preamble of claim 9.

Bei der Herstellung bzw. Bildung von Zigarettensträngen in Zigarettenstrangmaschinen wird ein üblicherweise aus mehreren Komponenten gebildeter Produktstrom über eine Verteilervorrichtung der Zigarettenstrangmaschine zugeführt. Innerhalb der Verteilervorrichtung wird der Produktstrom gesichtet und dosiert. Unter dem Sichten versteht man das Trennen von für die Verarbeitung geeigneten Anteilen, wie z. B. die sogenannte "erwünschte" Tabakfraktion, und für die Verarbeitung ungeeigneten Anteilen, wie z.B. Rippen von Tabakblättern oder dergleichen. Dieses Sichten erfolgt innerhalb einer Sichtstrecke des Sichtmittels. Dabei wird der über einen Zugang in das Sichtmittel eingebrachte Produktstrom mittels Luft gesichtet, nämlich in die zur Verarbeitung geeigneten und nicht geeigneten Bestandteile sortiert.In the production or formation of cigarette rods in cigarette rod making machines, a product stream which is usually formed from a plurality of components is supplied to the cigarette rod maker via a distributor device. Within the distributor device the product flow is sighted and metered. By sizing is meant the separation of portions suitable for processing, such as e.g. The so-called "desired" tobacco fraction, and portions which are unsuitable for processing, e.g. Ribs of tobacco leaves or the like. This sighting takes place within a visual range of the visual means. In this case, the introduced via an access in the visual means product flow is spotted by air, namely sorted into the suitable and suitable for processing components.

Ein Beispiel eines bekannten Zick-Zack-Sichter is in US-A-3624748 offenbart.An example of a known zigzag sifter is disclosed in US-A-3624748.

Bei bekannten Sichtmitteln wird der Produktstrom in die Verteilervorrichtung eingegeben. Der Produktstrom wird üblicherweise innerhalb der Verteilereinrichtung über einen Vorverteiler einem Tabakreservoir zugeführt und von dort mittels einer Zugabewalze, eines Steilförderers oder dergleichen dem Sichtmittel zugeführt. Bevor der Produktstrom über den Zugang in das Sichtmittel geleitet wird, bewirkt eine Vereinzelungswalze, daß der Produktstrom in einen abwärts führenden Zuführschacht fällt, und zwar unmittelbar und direkt in den Bereich des Zugangs.In known viewing means, the product stream is entered into the distributor device. The product stream is usually supplied to a tobacco reservoir within the distributor device via a pre-distributor and from there fed to the viewing means by means of an addition roller, a steep conveyor or the like. Prior to passing the product stream into the viewing means via access, a singulation roller causes the product stream to fall into a downwardly leading feed chute, directly and directly into the area of access.

Derartige Vorrichtungen weisen jedoch den Nachteil auf, daß der Produktstrom unmittelbar aus dem "freien Fall", also aus einer Bewegung heraus, dem Sichtmittel zugeführt wird. Der Produktstrom wird durch die Vereinzelungswalze sogar noch beschleunigt dem Zick-Zack-Sichter zugeführt. Dadurch ist zum einen die geordnete und kontinuierliche Zuführung zum und in das Sichtmittel erschwert. Zum anderen führt eine derart unruhige Zuführung des Produktstroms zu unbefriedigenden Sichtergebnissen. Auch kann sich der Produktstrom im Bereich des Zugangs aufstauen, so daß der Zugang für den nachströmenden Produktstrom verschlossen ist.However, such devices have the disadvantage that the product flow is fed directly from the "free fall", ie from a movement, the sight. The product stream is fed through the separating roller even accelerated the zig-zag separator. As a result, on the one hand the orderly and continuous supply to and into the visual means difficult. On the other hand, such an uneven feed of the product flow leads to unsatisfactory visual results. Also, the product stream can accumulate in the access area, so that the access for the inflowing product flow is closed.

Es ist daher Aufgabe der vorliegenden Erfindung, eine Vorrichtung zu schaffen, die geeignet ist, das Zuführen des Produktstroms zum Sichtmittel und das Sichten des Produktstroms im Sichtmittel zu verbessern und zu vereinfachen. Des weiteren ist es Aufgabe der Erfindung, ein Verfahren vorzuschlagen, daß ein zuverlässiges Zuführen und Sichten des Produktstroms gewährleistet.It is therefore an object of the present invention to provide an apparatus which is capable of improving and simplifying the feeding of the product stream to the viewing means and the sighting of the product stream in the visual means. Furthermore, it is an object of the invention to propose a method that ensures a reliable feeding and sifting of the product stream.

Diese Aufgabe wird durch ein Sichtmittel der eingangs genannten Art dadurch gelöst, daß im Bereich des Zugangs eine Einführhilfe für den Produktstrom in den Zick-Zack-Sichter angeordnet ist, so dass der Produktstrom unmittelbar vor dem Einführen in das Sichtmittel beruhigt, wird. Durch diese Einführhilfe ist es auf überraschend einfache und besonders effektive Weise möglich, den Produktstrom unmittelbar vor dem Eintritt in den Zick-Zack-Sichter zu beruhigen und zu homogenisieren, so daß der Produktstrom gleichmäßig und kontinuierlich in den Zick-Zack-Sichter geführt und innerhalb des Zick-Zack-Sichters zuverlässig und störungsfrei gesichtet werden kann.This object is achieved by a visual means of the type mentioned above in that in the region of access an insertion aid for the product flow is arranged in the zig-zag sifter, so that the product flow calmed immediately before insertion into the visual means is. By means of this insertion aid, it is possible in a surprisingly simple and particularly effective manner to calm and homogenize the product stream immediately before it enters the zigzag sifter, so that the product stream is guided uniformly and continuously into the zigzag sifter and within Zig-zag sifter can be sighted reliably and trouble-free.

Vorteilhafterweise ist die Einführhilfe als Rolle ausgebildet, so daß der Produktstrom aktiv und gleichmäßig in den Zick-Zack-Sichter förderbar ist. Dies verhindert auch ein Aufstauen von Teilen des Produktstroms im Bereich des Zugangs, so daß der kontinuierliche und störungsfreie Betrieb des Sichtmittels und damit der gesamten Verteilervorrichtung sichergestellt ist.Advantageously, the insertion is designed as a role, so that the product flow is actively and evenly conveyed in the zig-zag sifter. This also prevents one Damming of parts of the product flow in the area of access, so that the continuous and trouble-free operation of the viewing means and thus the entire distribution device is ensured.

In einer weiteren vorteilhaften Ausführungsform umfaßt die Einführhilfe ein Leitelement, wobei das Leitelement in Transportrichtung des Produktstroms vor dem Zugang bzw. der Rolle angeordnet ist. Durch dieses Leitelement wird der Produktstrom vor dem Zugang beruhigt. Mit anderen Worten wird der freie Fall des Produktstroms vor dem Zugang zum Zick-Zack-Sichter quasi abgebremst, indem der Produktstrom auf dem Leitelement auftrifft und dadurch beruhigt wird, so daß eine gleichmäßige und kontinuierliche Zuführung in den Zick-Zack-Sichter gewährleistet ist.In a further advantageous embodiment, the insertion aid comprises a guide element, wherein the guide element is arranged in the transport direction of the product flow in front of the access or the roller. This guiding element calms down the product stream prior to entry. In other words, the free fall of the product stream is quenched prior to access to the zig-zag sifter by the product stream impinges on the guide element and is thereby calmed, so that a uniform and continuous supply is ensured in the zig-zag sifter.

Vorteilhafterweise ist der Abstand zwischen dem Leitelement und der unteren Seitenwand größer als der Abstand zwischen oberer Seitenwand und unterer Seitenwand. Dadurch wird eine Art zusätzlicher Trichtereffekt erzielt, der den Produktstrom noch besser beruhigt und insbesondere zielgerichtet in den Zugang leitet.Advantageously, the distance between the guide element and the lower side wall is greater than the distance between the upper side wall and the lower side wall. As a result, a kind of additional funnel effect is achieved, which calms the product flow even better and in particular directs purposefully into the access.

Des weiteren wird die Aufgabe durch ein Verfahren mit den Merkmalen des Anspruchs 9 gelost. Durch das Beruhigen des Produktstroms, das auch als Abbremsen bezeichnet werden kann, ist eine kontinuierliche und gleichmäßige Zuführung des Produktstroms in das Sichtmittel gewährleistet. Ein Aufstauen von Teilen des Produktstroms oder gar ein Entmischen, also ein unerwünschtes Trennen einzelner Komponenten des Produktstroms kann dadurch wirkungsvoll verhindert werden.Furthermore, the object is achieved by a method having the features of claim 9. By calming the product stream, which can also be referred to as deceleration, a continuous and uniform supply of the product stream is ensured in the visual means. Damming of parts of the product stream or even segregation, ie an undesired separation of individual components of the product stream can be effectively prevented.

Weitere Merkmale und bevorzugte Ausführungsformen der Erfindung ergeben sich aus den Unteransprüchen und der Beschreibung. Besonders bevorzugte Ausführungsformen der Erfindung sowie das Verfahren werden anhand der Zeichnung näher erläutert bzw. beschrieben. In der Zeichnung zeigt:

Fig. 1
eine Seitenansicht eines Ausschnitts einer Verteilervorrichtung, nämlich das Sichtmittel, mit einer Rolle als Einführhilfe,
Fig. 2
eine Seitenansicht eines Ausschnitts einer Verteilervorrichtung, nämlich das Sichtmittel, mit einem Leitblech als Einführhilfe,
Fig. 3
eine vergrößerte Darstellung einer weiteren Ausführung der Einführhilfe,
Fig. 4
eine vergrößerte Darstellung einer weiteren Ausführung der Einführhilfe,
Fig. 5
eine vergrößerte Darstellung einer weiteren Ausführung der Einführhilfe,
Fig. 6
eine vergrößerte Darstellung einer weiteren Ausführung der Einführhilfe, und
Fig. 7
eine vergrößerte Darstellung einer weiteren Ausführung der Einführhilfe.
Further features and preferred embodiments of the invention will become apparent from the dependent claims and the description. Particularly preferred embodiments of the invention and the method will be explained or described with reference to the drawing. In the drawing shows:
Fig. 1
a side view of a section of a distribution device, namely the sight, with a role as an insertion,
Fig. 2
a side view of a section of a distribution device, namely the sight, with a baffle as an insertion,
Fig. 3
an enlarged view of another embodiment of the insertion,
Fig. 4
an enlarged view of another embodiment of the insertion,
Fig. 5
an enlarged view of another embodiment of the insertion,
Fig. 6
an enlarged view of another embodiment of the insertion, and
Fig. 7
an enlarged view of another embodiment of the insertion.

Die in den Figuren dargestellten Zick-Zack-Sichter dienen zum Sichten eines Produktstroms, vorzugsweise eines überwiegend aus Tabakkomponenten bestehenden Produktstroms, innerhalb einer Verteilervorrichtung zum Beschicken einer Zigarettenstrangmaschine.The zig-zag classifiers shown in the figures are used to view a product stream, preferably a product stream consisting predominantly of tobacco components, within a distributor device for feeding a cigarette rod machine.

Das Sichtmittel 10 gemäß der Ausführungsform aus Figur 1 ist als sogenannter Zick-Zack-Sichter 11 ausgebildet und Bestandteil einer nur teilweise dargestellten Verteilervorrichtung. Der Zick-Zack-Sichter 11 ist im wesentlichen vertikal innerhalb der Verteilervorrichtung angeordnet. Der Zick-Zack-Sichter 11 weist einen Zugang 12 zur Eingabe eines Produktstroms auf. Alternativ sind auch mehrere Zugänge vorstellbar. Der Zugang 12 ist durch Seitenwände, nämlich eine obere Seitenwand 13 und eine untere Seitenwand 14 gebildet, die ihrerseits eine Öffnung 15 bilden. Hierzu steht die obere Seitenwand 13 nahezu senkrecht auf der unteren Seitenwand 14, und zwar mit einem Abstand B, so daß der Produktstrom in den Zick-Zack-Sichter 11 geführt werden kann.The viewing means 10 according to the embodiment of Figure 1 is designed as a so-called zig-zag classifier 11 and part of a distributor device only partially shown. The zigzag sifter 11 is arranged substantially vertically within the distributor device. The zig-zag classifier 11 has an access 12 for inputting a product stream. Alternatively, several accesses are conceivable. The access 12 is formed by side walls, namely an upper side wall 13 and a lower side wall 14, which in turn form an opening 15. For this purpose, the upper side wall 13 is almost perpendicular to the lower side wall 14, and with a distance B, so that the product flow can be performed in the zig-zag classifier 11.

In Transportrichtung des Produktstroms aus einem nicht dargestellten Tabakreservoir zum Zick-Zack-Sichter 11 ist vor diesem ein Zuführschacht 16 angeordnet, der sich an eine Vereinzelungswalze 17 oder dergleichen anschließt. Der Zuführschacht 16 ist trichterförmig ausgebildet, derart, daß sich der Zuführschacht 16 in Richtung des Zugangs 12 verjüngt. An der engsten Stelle zwischen oberer Seitenwand 13 und unterer Seitenwand 14, also im Bereich des Zugangs 12 ist eine zusätzliche Einführhilfe 18 angeordnet. Die Einführhilfe 18 ist als Rolle 19 ausgebildet. Diese Rolle 19 ist rotierend an einem Rahmen, einer Gehäusewand oder dergleichen gelagert und kann auch mittels eines nicht dargestellten Antriebs rotierend angetrieben werden. Der Zugang 12, also die Öffnung 15, wird in dieser Ausführungsform dann zwischen der Rolle 19 und der unteren Seitenwand 14 gebildet, so daß der Produktstrom zwangsläufig an der Rolle 19 vorbei strömt. Die Position der Rolle 19 ist veränderbar. Dadurch ist die Breite des Zugangs 12 bzw. der Öffnung 15 variabel und an den jeweiligen Produktstrom anzupassen. Anstatt der Rolle 19 können auch andere Fördermittel verwendet werden. Verschiedene Ausführungen hierzu werden im folgenden erläutert.In the transport direction of the product flow from a tobacco reservoir, not shown, to the zigzag sifter 11, a feed chute 16 is arranged in front of it, which adjoins a separating roller 17 or the like connects. The feed chute 16 is funnel-shaped, such that the feed chute 16 tapers in the direction of the access 12. At the narrowest point between the upper side wall 13 and the lower side wall 14, ie in the region of the access 12, an additional insertion aid 18 is arranged. The insertion aid 18 is designed as a roller 19. This roller 19 is rotatably mounted on a frame, a housing wall or the like and can also be driven in rotation by means of a drive, not shown. The access 12, so the opening 15 is then formed in this embodiment between the roller 19 and the lower side wall 14, so that the product flow inevitably flows past the roller 19. The position of the roller 19 is changeable. Thereby, the width of the access 12 and the opening 15 is variable and adapt to the respective product flow. Instead of the roller 19 and other funding can be used. Various embodiments will be explained below.

In der Figur 3 ist z.B. eine Einführhilfe 18 gezeigt, die als Zellradschleuse 26 ausgebildet ist. Mittels der Zellradschleuse 26 ist der Zick-Zack-Sichter 11 zumindest im Bereich des Zugangs 12 luftdicht abdichtbar. Das bedeutet, daß die Zellradschleuse 26 ein Austreten von Luft aus dem Zick-Zack-Sichter 11 im Bereich des Zugangs 12 sowie ein Ansaugen von Umgebungsluft über den Zugang 12 in den Zick-Zack-Sichter 11 verhindert. In einer weiteren Ausführung gemäß Figur 4 ist die Einführhilfe 18 eine Walze bzw. eine Rolle 27. Die Rolle 27 weist im Gegensatz zur Rolle 19, die eine nahezu glatte Oberfläche aufweist, eine strukturierte Oberfläche auf. Auf der Oberfläche der Rolle 27 sind Vorsprünge 28 und Vertiefungen 29 vorgesehen, die den Transport des Produktstroms durch den Zugang 12 in den Zick-Zack-Sichter 11 verbessern. Besonders vorteilhaft ist die Ausbildung der Einführhilfe 18 als Nagelwalze 30 oder dergleichen (siehe z.B. Figur 5). Durch die spitzen, nagelartigen Vorsprünge 31 ist die Mitnahme und damit der Transport des Produktstroms, beispielsweise des Tabaks, zuverlässig sichergestellt. Des weiteren können durch die gezeigte Ausführung z.B. sogenannte Tabaknester aufgelöst werden, was zu einer zusätzlichen Vergleichmäßigung des Produktstroms führt.In Fig. 3, e.g. an insertion aid 18 is shown, which is designed as a rotary valve 26. By means of the rotary valve 26, the zig-zag classifier 11 is at least in the region of the access 12 airtight sealable. This means that the rotary valve 26 prevents leakage of air from the zigzag sifter 11 in the region of the access 12 and a suction of ambient air through the access 12 in the zigzag sifter 11. In a further embodiment according to FIG. 4, the insertion aid 18 is a roller or a roller 27. In contrast to the roller 19, which has a virtually smooth surface, the roller 27 has a structured surface. Protrusions 28 and recesses 29 are provided on the surface of the roller 27 to enhance the transport of the product stream through the access 12 into the zigzag sifter 11. Particularly advantageous is the formation of the insertion aid 18 as a nail roller 30 or the like (see, for example, Figure 5). By the pointed, nail-like projections 31, the entrainment and thus the transport of the product stream, such as tobacco, reliably ensured. Furthermore, by the embodiment shown, e.g. so-called tobacco nests are dissolved, resulting in an additional homogenization of the product stream.

Alternativ oder kumulativ zu einer Rolle 19, 27 bzw. zu einer Nagelwalze 30 kann die Einführhilfe 18 auch ein Bandförderelement 32 umfassen. In Figur 6 ist eine Ausführung gezeigt, in der das Bandförderelement 32 ein einzelnes unteres Förderband 33 umfaßt. Das Förderband 33 ist mittels eines nicht dargestellten Antriebs antreibbar und mündet im Bereich des und gleichzeitig den Zugang 12 bildend in den Zick-Zack-Sichter 11. Das Bandförderelement 32 kann auch zwei Förderbänder umfassen, nämlich das untere Förderband 33 sowie ein beabstandet zum unteren angeordnetes (nicht dargestelltes) oberes Förderband. Beide Förderänder bilden dann im Bereich einer Mündung in den Zick-Zack-Sichter 11 den Zugang 12. Die Ausführungsform gemäß Figur 7 sieht ein Düsenelement 34 als Einführhilfe 18 vor. Das Düsenelement 34 kann als Düsenleiste, Schlitzdüse oder dergleichen ausgebildet sein und dient zum berührungslosen Transport des Produktstroms durch den Zugang 12 in den Zick-Zack-Sichter 11. Dadurch wird sichergestellt, daß der Produktstrom, nämlich z.B. der Tabak nicht zerstört wird.Alternatively or cumulatively to a roller 19, 27 or to a nail roller 30, the insertion aid 18 may also comprise a belt conveyor element 32. In Figure 6 is a Embodiment shown in which the belt conveyor element 32 comprises a single lower conveyor belt 33. The conveyor belt 33 is drivable by means of a drive, not shown, and in the area of and simultaneously forming the access 12 in the zig-zag classifier 11. The belt conveyor element 32 may also comprise two conveyor belts, namely the lower conveyor belt 33 and a spaced apart from the lower (not shown) upper conveyor belt. Both conveyor belts then form the access 12 in the region of an opening in the zigzag sifter 11. The embodiment according to FIG. 7 provides a nozzle element 34 as an insertion aid 18. The nozzle member 34 may be formed as a nozzle bar, slot nozzle or the like and serves for the contactless transport of the product stream through the access 12 in the zig-zag classifier 11. This ensures that the product stream, namely, for example, the tobacco is not destroyed.

Die Ausführungsform gemäß Figur 2 ist im wesentlichen gleich zu der in Figur 1 dargestellten ausgebildet, so daß für dieselben Teile dieselben Bezugszeichen verwendet werden. Allerdings weist das Sichtmittel 18 als Einführhilfe 18 ein zusätzliches Leitelement 20 auf. Das Leitelement 20 erstreckt sich im wesentlichen parallel zur oberen Seitenwand 13. Der Abstand zwischen der Seitenwand 13 und dem Leitelement 20 ist einstellbar. Hierzu ist das Leitelement 20 z.B. lösbar an Stützelementen 21 angeordnet, die über Langlöcher 22 verfügen. Ein freies Ende 23 des Leitelementes 20 ist ebenso wie ein freies Ende 24 der oberen Seitenwand 13 mit einem Abstand A zur unteren Seitenwand 14 versehen. Der Abstand A zur Bildung einer Öffnung 25 zwischen Leitelement 20 und unterer Seitenwand 14 ist vorzugsweise größer als der Abstand B zur Bildung der Öffnung 15 zwischen oberer Seitenwand 13 und unterer Seitenwand 14. Dadurch wird zum einen die Trichterform verstärkt. Zum anderen wird ein stufenweises "Abbremsen" bzw. Beruhigen des Produktstroms erzeugt. Dadurch liegt der Produktstrom im Bereich des Zugangs 12, also unterhalb der oberen Seitenwand 13, bereits beruhigt auf der unterer Seitenwand 14 auf.The embodiment according to Figure 2 is substantially the same as that shown in Figure 1, so that the same reference numerals are used for the same parts. However, the sight 18 as an insertion aid 18 an additional guide element 20. The guide element 20 extends substantially parallel to the upper side wall 13. The distance between the side wall 13 and the guide element 20 is adjustable. For this purpose, the guide element 20 is e.g. detachably arranged on support elements 21, which have slots 22. A free end 23 of the guide element 20 is provided as well as a free end 24 of the upper side wall 13 at a distance A to the lower side wall 14. The distance A for forming an opening 25 between the guide element 20 and the lower side wall 14 is preferably greater than the distance B to form the opening 15 between the upper side wall 13 and the lower side wall 14. Thus, on the one hand, the funnel shape is reinforced. On the other hand, a gradual "deceleration" or calming of the product flow is generated. As a result, the product flow in the region of the access 12, that is to say below the upper side wall 13, is already calmed down on the lower side wall 14.

Das Leitelement 20 ist in Seitenansicht etwa dreieckförmig ausgebildet. Durch die auf der der oberen Seitenwand 13 abgewandten Seite des Leitelementes 20 vorgesehene Schräge wird der auf das Leitelement 20 treffende Produktstrom in den Bereich der Öffnung 25 geleitet, um dann stufenartig zum Zugang 12 gefördert zu werden.The guide element 20 is formed approximately triangular in side view. By provided on the side facing away from the upper side wall 13 of the guide element 20 slope of the impinging on the guide element 20 product flow is passed into the region of the opening 25, to then be promoted stepwise to access 12.

Es ist auch denkbar, daß noch weitere Stufen vorgesehen sind, beispielsweise in Form von weiteren in Transportrichtung des Produktstroms seriell angeordneten Leitelementen. In einer weiteren, nicht dargestellten Ausführungsform können die beiden Ausführungsformen gemäß Figuren 1 und 2 auch kombiniert sein. Das bedeutet, daß die Einführhilfe 18 aus mindestens einem zusätzlichen Leitelement 20 und einer Rolle 19 im Bereich des Zugangs 12 gebildet ist. Die Rolle 19 kann eine strukturierte Oberfläche aufweisen, derart, daß der zu fördernde Produktstrom sicher "gegriffen" werden kann. Hierzu kann die Rolle 19 Nuten, Furchen oder andere Erhebungen und Vertiefungen aufweisen.It is also conceivable that further stages are provided, for example in the form of further in the transport direction of the product stream serially arranged guide elements. In a further, not shown embodiment, the two embodiments according to Figures 1 and 2 may also be combined. This means that the insertion aid 18 is formed from at least one additional guide element 20 and a roller 19 in the region of the access 12. The roller 19 may have a textured surface such that the product stream to be delivered can be safely "gripped". For this purpose, the roller 19 grooves, furrows or other elevations and depressions.

Das Verfahren zum Sichten eines Produktstroms wird im folgenden beschrieben:
Der Produktstrom wird üblicherweise aus einem Speicher oder Reservoir mittels einer Zugabewalze bzw. eines Steilförderers aus einem Speicher zum Sichtmittel geführt. In Transportrichtung des Produktstroms vor dem Sichtmittel sorgt die Vereinzelungswalze 17 dafür, daß der Tabak beschleunigt in den abwärts führenden Zuführschacht 16 fällt. Bei der Ausführungsform gemäß Figur 1 fällt der Tabak dann auf die Rolle 19 bzw. in den Bereich zwischen Rolle 19 und unterer Seitenwand 14, was den freien Fall abbremst, so daß der Produktstrom zunächst beruhigt wird. Anschließend wird der Produktstrom im Bereich des Zugangs 12 durch die Rolle 19 aktiv in den Zick-Zack-Sichter 11 geleitet. Es besteht auch die Möglichkeit, daß die Rotation der Rolle 19 durch den auf die Rolle 19 treffenden Produktstrom erzeugt wird. Das beschriebene Verfahren gewährleistet ein gleichmäßiges und kontinuierliches Zuführen des aus Tabakkomponenten und möglicherweise zusätzlichen Komponenten bestehenden Produktstroms in den Zick-Zack-Sichter 11.The method of sifting a product stream is described below:
The product stream is usually conducted from a reservoir or reservoir by means of an addition roller or a steep conveyor from a reservoir to the visual means. In the direction of transport of the product stream in front of the viewing means, the separating roller 17 ensures that the tobacco accelerates into the downwardly leading feed chute 16. In the embodiment according to FIG. 1, the tobacco then falls onto the roller 19 or into the area between roller 19 and lower side wall 14, which slows down the free fall, so that the product flow is initially calmed. Subsequently, the product flow in the region of the access 12 is actively guided by the roller 19 into the zigzag sifter 11. There is also the possibility that the rotation of the roller 19 is generated by the impinging on the roller 19 product flow. The described method ensures uniform and continuous feeding of the product stream consisting of tobacco components and possibly additional components into the zigzag sifter 11.

Bei der Ausführungsform gemäß Figur 2 fällt der Tabak in den Zuführschacht 16 und trifft mindestens zu großen Teilen auf das Leitelement 20 und rutscht von dort in die Öffnung 25 zwischen Leitelement 20 und unterer Seitenwand 14. Dadurch wird der freie Fall des Tabaks zunächst abgebremst, was zu einer Beruhigung führt. Der dann auf der unteren Seitenwand 14 liegende Tabak wird dann weiter durch die Öffnung 15 in den Zick-Zack-Sichter 11 geleitet. Dadurch, daß der Produktstrom nicht direkt aus dem Zuführschacht 16 kommend in den Zick-Zack-Sichter 11 geleitet wird, sondern vor dem Einführen zu einem gleichmäßigen, kontinuierlichen und ruhig fließenden Produktstrom geformt wird, wird ein Aufstauen verhindert und gleichzeitig ein zuverlässiges Sichten gewährleistet.In the embodiment of Figure 2, the tobacco falls into the feed chute 16 and at least largely strikes the guide element 20 and slips from there into the opening 25 between the guide element 20 and lower side wall 14. Thus, the free fall of the tobacco is first braked, which leads to a reassurance. The then lying on the lower side wall 14 tobacco is then passed through the opening 15 in the zig-zag classifier 11. Characterized in that the product stream is not passed directly from the feed chute 16 coming into the zig-zag classifier 11, but before the Introducing a uniform, continuous and smoothly flowing product flow prevents buildup while ensuring reliable sighting.

Claims (11)

  1. Separating means for separating a product stream, in particular for dividing portions of a product stream to be processed and those not to be processed inside a distributor device for charging a cigarette strand machine, the separating means (10) being constructed as a substantially vertically aligned zigzag separator (11) and having at least one access (12) for the product stream to be separated, characterised in that an insertion aid (18) for the product stream into the zigzag separator (11) is arranged in the area of the access (12), so that the product stream is smoothed immediately before being inserted into the separating means (10).
  2. Separating means according to claim 1, characterised in that the insertion aid (18) is constructed as a rotating roller (19).
  3. Separating means according to claim 2, characterised in that the roller (19) is driven.
  4. Separating means according to claim 2 or 3, characterised in that the access (12) is formed from two side walls (13, 14) of the zigzag separator (11), the roller (19) being arranged in the area of an open end (24) of the upper side wall (13).
  5. Separating means according to one of claims 1 to 4, characterised in that the insertion aid (18) comprises a conducting element, the conducting element (20) being arranged before the access (12) or before the roller (19) in the direction of conveyance of the product stream.
  6. Separating means according to claim 5, characterised in that the conducting element (20) is arranged substantially parallel to the upper side wall (13).
  7. Separating means according to claim 5 or 6, characterised in that the distance C between the upper side wall (13) and the conducting element (20) is variable.
  8. Separating means according to one of claims 5 to 7, characterised in that the distance A between the conducting element (20) or its open end (23) and the lower side wall (14) is greater than the distance B between the upper side wall (13) or its open end (24) and the lower side wall (14).
  9. Method for separating a product stream, in particular for dividing portions of a product stream to be processed and those not to be processed inside a distributor device for charging a cigarette strand machine, comprising the steps:
    - inserting the product stream into a separating means (10),
    - separating the product stream inside the separating means (10) and
    - removing the separated product stream from the separating means (10), characterised in that the product stream is guided into the zigzag separator (11) by an insertion aid (18), wherein the product stream is smoothed immediately before being inserted into the separating means (10).
  10. Method according to claim 9, characterised in that the product stream is guided continuously into the zigzag separator (11) by means of a roller (19).
  11. Method according to claim 9, characterised in that the product stream meets a conducting element (20) immediately before entering the zigzag separator (11) and is guided from there into the area of an access (12) to the zigzag separator (11).
EP04090050A 2003-02-15 2004-02-13 Zig-Zag classifier for a product flow Expired - Lifetime EP1447015B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04090050A EP1447015B1 (en) 2003-02-15 2004-02-13 Zig-Zag classifier for a product flow

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP03090042 2003-02-15
EP03090042 2003-02-15
EP04090050A EP1447015B1 (en) 2003-02-15 2004-02-13 Zig-Zag classifier for a product flow

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EP1447015B1 true EP1447015B1 (en) 2007-05-30

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Publication number Priority date Publication date Assignee Title
NL2024017B1 (en) * 2019-10-15 2021-06-17 Smart Crusher B V Separating device for separating partially interconnected relatively heavy and relatively light particles
CN112089090B (en) * 2020-10-10 2024-01-19 云南中烟工业有限责任公司 Device and method for separating light and thin sheet-shaped cut stems by using material throwing roller

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624748A (en) * 1967-12-18 1971-11-30 Mauritz L Strydom Cigarette making
DE3534249C2 (en) * 1984-10-10 1998-07-02 Hauni Werke Koerber & Co Kg Device for processing tobacco fibers in the distributor of a cigarette rod machine
IT1187343B (en) * 1985-03-22 1987-12-23 Gd Spa CIGARETTE PACKAGING MACHINE WITH TOBACCO PARTICLE SEPARATOR
CH683883A5 (en) * 1990-09-07 1994-06-15 Tabac Fab Reunies Sa cigarette machine distributor.

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Title
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