EP2764782B1 - Device for manufacturing filters with an additive for products from the tobacco processing industry - Google Patents

Device for manufacturing filters with an additive for products from the tobacco processing industry Download PDF

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Publication number
EP2764782B1
EP2764782B1 EP14154312.4A EP14154312A EP2764782B1 EP 2764782 B1 EP2764782 B1 EP 2764782B1 EP 14154312 A EP14154312 A EP 14154312A EP 2764782 B1 EP2764782 B1 EP 2764782B1
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EP
European Patent Office
Prior art keywords
carrier
compressed
substrate
locating channel
bar
Prior art date
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Not-in-force
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EP14154312.4A
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German (de)
French (fr)
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EP2764782A1 (en
Inventor
Jörg-Dieter Paech
Jörg Selbach
Stefan Mündel
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Koerber Technologies GmbH
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Hauni Maschinenbau GmbH
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Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to PL14154312T priority Critical patent/PL2764782T3/en
Publication of EP2764782A1 publication Critical patent/EP2764782A1/en
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives

Definitions

  • the invention relates to an apparatus for producing filters with an additive for products of the tobacco processing industry having the features of the preamble of claim 1.
  • the filters are produced in a continuous strand from a so-called filter tow into which a carrier impregnated or wetted with the additive is introduced. It is also conceivable to produce the filters in several parallel strands, preferably with a production of the filters in two parallel strands in a double-strand machine.
  • the filter tow itself is made, for example, from a cellulose acetate which is treated with a means for dissolving the acetate fibers, in particular triacetin.
  • the carrier itself may be formed, for example, by an endless thread of a natural or synthetic base material, which is crosslinked so far that the thread has a certain tensile strength.
  • Such a carrier can be formed, for example, by a cotton thread, an acetate thread, an absorbent tape or the like, which is impregnated with an additive and / or wetted and continuously introduced into the strand of the filter material.
  • the additive may be, for example, nicotine or a flavoring such as menthol, which should give the smoking person a fresh taste.
  • the menthol is applied in liquid form as a hot menthol to the carrier and has a temperature at the time of application between 40 and 45 degrees Celsius.
  • a filter is for example from WO 2011/058319 A1 known.
  • the carrier itself is wound up on a reel, which is unwound after a limited length and has to be replaced by a new reel of the same carrier.
  • the free end of the carrier of the new roll is knotted or spliced together with the end of the carrier wound on the old roll and thereby drawn into the skein.
  • the products in which the node is subsequently arranged are detected by means of suitable sensor devices and executed from the production path as weft material.
  • a problem of this type of introduction of the new carrier is that the production of the node requires a certain skill and conscientiousness of the person handling it. If the node is not sufficiently strong, there is a risk that the node will open, and consequently that the new end will not be pulled into the strand.
  • the new end then has to be then manually inserted very costly in the strand, including the entire device must be stopped in extreme cases.
  • the products that were produced during the production process without an inserted carrier must also be carried out as shot material from the transport route. Overall, the previously used solution of Anknotens the new carrier is therefore an unsatisfactory solution.
  • the object of the invention is to provide a device in which the carrier can be introduced simplified while avoiding the above-mentioned disadvantages in the strand.
  • the guide channel have a larger cross-sectional area with respect to the transport movement of the carrier downstream of the compressed air device than upstream of the compressed air device.
  • the advantage of the proposed solution is the fact that the compressed air accumulates in any case, and the carrier is simultaneously transported.
  • the device may preferably have a control device for changing the negative pressure in the guide channel, so that the negative pressure for retraction of the carrier can be reduced if necessary.
  • the negative pressure generated by the device can thus also increased to ambient pressure after retraction of the carrier, so to speak, be switched off, if the concern of negative pressure is no longer useful.
  • the negative pressure can also be changed, or even a higher overpressure in the guide channel, for example for cleaning the guide channel, can be generated.
  • the control device may be, for example, a valve device by means of which a compressed air flow in the direction or in its characteristic values can be changed.
  • the control device can be both a pure on-off switch and a continuous be the pressure or the volume flow of the compressed air flow changing control device.
  • the transport movement of the carrier can be further supported by the introduced via the compressed air line compressed air is introduced in the direction of the intended transport movement of the carrier in the guide channel. Due to the advance direction of the introduced compressed air, the carrier is not only sucked, but then additionally transported in the same direction, so that the carrier is clearly moved in the intended transport direction during suction and subsequent onward transport.
  • the compressed air introduced through the compressed air line for introducing the carrier into the strand into the Venturi nozzle with an overpressure of 0.1 to 1.0 bar, preferably from 0.2 to 0.5 bar and particularly preferably 0, 3 bar is initiated.
  • the proposed overpressure has proven to be useful insofar as in this case a sufficiently low negative pressure in the Venturi nozzle can be provided for sucking the carrier by the acceleration of the compressed air in the venturi. It is of particular importance that the overpressure is not too high, so that the static pressure in the flow by the acceleration of the compressed air in the Venturi nozzle falls below the ambient pressure and the carrier is sucked.
  • the Venturi nozzle should have in its narrow cross-section at most half the cross-sectional area of the supplying compressed air line, in which the proposed overpressure is applied.
  • the compressed air line is connected to the guide channel in relation to the transport movement of the carrier upstream of a feed device for applying an additive to the carrier.
  • the negative pressure can also be generated in a portion of the guide channel, which immediately adjacent to an insertion, in which the carrier is introduced into the strand.
  • the advantage of this arrangement can be seen in the fact that the carrier is sucked in until immediately before the insertion, wherein the acted upon under negative pressure portion of the guide channel and the insertion can be acted upon in a section also together with negative pressure.
  • the negative pressure could also be applied to the insertion section and act through the connection point of the guide channel in the guide channel, so that the carrier is practically sowed from the insertion section ago.
  • the compressed air introduced by the compressed air device should be introduced with an overpressure of 1.0 to 4.5 bar, preferably from 1.5 to 3.0 bar and particularly preferably 2.0 bar, so that the carrier sucked process reliable and is introduced into the strand.
  • the guide channel has on its insertion side an insertion opening with an opening area which is at most twice as large as the cross-sectional area of the support.
  • the insertion opening it is narrowed by the inserted support to such an extent that the flow velocity of the inflowing air in the annular gap surrounding the support rises sharply, and the carrier is practically entrained by the high flow rate in the annular gap.
  • Fig. 1 is a section of an apparatus for producing filters with an additive for products of the tobacco processing industry to recognize, which is supplied to a strand-shaped endless support 1, for example in the form of a cotton thread. Further, the device is fed to an endless strand 5 of a filter material. The strand 5 of the filter material is fed in a known manner via a funnel device 6 of a garniture consisting of a format base 8 and one or more upper format parts 7, in which the strand 5 is compressed to a smaller diameter and is fixed in shape with a wrapping strip. The strand 5 is then cut in a subsequent processing station in multiple-length filter of a predetermined length. The carrier 1 is placed in a guide channel 13 of a guide device 21 extending through a feed device 4 fed, by means of which the carrier 1 is introduced into the strand 5 of the filter material.
  • the carrier 1 is deflected by a deflection device 10 and introduced via an insertion opening 20 in a central bore 22 of a compressed air connection piece 9.
  • the compressed air connection piece 9 also has a compressed air connection 14 and a conical annular gap 15 which is fluidically connected to the compressed air connection 14 and has a constant gap width, which opens into the central bore 22.
  • the compressed air connection piece 9 comprises a base part 23 with a conical recess, which merges at its radially inner portion into the central bore 22.
  • a conical mating surface is provided on the compressed air connection 14, which comes to rest after the attachment of the compressed air connection 14 at a distance from the surface of the conical recess of the base part 23 and limits the conical annular gap 15.
  • the central bore 22 forms the first portion of the guide channel 13, in which the carrier 1 is guided.
  • a mixing chamber 2 is provided, in which the additive is applied to the carrier 1.
  • a directed in the transport direction of the carrier 1 inflow channel 12 is provided in the mixing chamber 2, in which the applied to the carrier 1 additive is supplied.
  • the inflow channel 12 opens in the direction of transport of the carrier 1 into the guide channel 13, so that the additive is already applied to the carrier 1 with a movement directed in the direction of transport of the carrier 1 and entrained by this.
  • the carrier 1 After passing through the mixing chamber 2, the carrier 1 is guided through the laterally extending through a heated distribution section 3 guide channel 13, in which the additive on the carrier 1 is uniformed, until the carrier 1 is finally introduced by the guide means 21 in the strand 5.
  • the carrier 1 in the device For threading the carrier 1 in the device, it is inserted through a small opening 20 in the central bore 22 of the compressed air connection piece 9, as in the Fig. 2 can be seen.
  • the opening 20 is relatively small and has a cross-sectional area of at most three times the cross-sectional area of the carrier 1, so that even the opening 20 performs a guiding function for the carrier 1.
  • compressed air with an overpressure of 0.3 bar is blown into the annular gap 15 via the compressed air connection 14, which is accelerated due to the conicity and consequent reduction in the cross-sectional area of the annular gap 15 in the same, so that the static pressure in the compressed air flow finally under the static ambient pressure drops.
  • the compressed air connection piece 9 is arranged in the transport direction T of the carrier 1 upstream of the mixing chamber 2.
  • the proposed arrangement of the compressed air connection piece 9 can be generated by a subsequent to the threading of the carrier 1 pressurization of the annular gap 15 with an overpressure of at least 2 bar a sealing air, which prevents the additive, for example, in a supersaturation opposite to the transport direction T of Carrier 1 off the mixing chamber 2 emerges.
  • the compressed air connection 14 and the annular gap 15 form the compressed air device for generating the negative pressure and the sealing air.
  • a nozzle insert 16 integrated in the guide channel 13 is provided.
  • the nozzle insert 16 comprises a section of the guide channel 13 and a compressed air channel 18 which opens at an angle A of less than 90 degrees to the supplied carrier 1 or the transport direction T of the carrier 1 and opens into the guide channel 13 with a compressed air connection 14 screwed in it is of particular importance that the compressed air in this arrangement of the compressed air device with an overpressure of 1.0 to 4.5, preferably from 1.5 to 3.0 and particularly preferably from 2.0 bar via the compressed air channel 18 in the guide channel 13 is initiated, so that the carrier 1 is sucked in with the necessary force and further transported.
  • the compressed air channel 18 has a cross-sectional area which is the same in area as the cross-sectional area of the guide channel 13.
  • the compressed air channel 18 opens into the guide channel 13 which is formed downstream of the transport direction T in a portion 19 having a larger cross-sectional area. Since the sum of the air flows supplied through the guide channel 13 and the compressed air channel 18 must be removed by the section 19, and a damming of the air for the transport of the carrier 1 in the section 19 would be a considerable disadvantage, the larger cross-sectional area of the section 19 for the suction of the carrier 1 of particular importance. Due to the increased volume flow of the carrier 1 is then pushed further in the transport direction T in the guide channel 13.
  • the larger cross-sectional area of the guide channel 13 downstream of the compressed air channel 18 is advantageous in that the carrier 1 can thereby be transported further in a simplified manner, without the risk of the carrier 1 getting caught on the edges or not finding the opening of the guide channel 13.
  • the carrier 1 can be introduced directly into the strand 5 after emerging from the section 19 of the guide channel 13 through the funnel device 6 or the guide device 4.
  • the compressed air channel 18 here forms a Venturi nozzle for generating a negative pressure acting in the guide channel 13, through which the carrier 1 is sucked. It is of particular importance that downstream of the compressed air channel 18 with the narrow cross-section, a portion 19 of the guide channel 13 is provided with a larger cross-sectional area, so that the flow is delayed again and the static pressure in the flow increases again.
  • the compressed air can be switched off.
  • the carrier 1 is then pulled along by the strand 5 on.
  • the advantage of the proposed solution is the fact that the carrier 1 can be introduced very easily, without the need for a free end of a carrier already in the strand 1 must be present. Furthermore, the insertion of the carrier 1 can also be carried out during the operation of the device.
  • the device for generating the negative pressure for suction or for generating the overpressure for further transporting the carrier 1 can be arranged at any point of the guide device 4.
  • the insertion of the carrier 1 in the strand 5 is effected by the device at the end the feed device 4 is arranged, on which the carrier 1 is introduced into the feed device.
  • the carrier 1 is sucked in this embodiment of the invention only over a short distance in the annular gap 15 and then pushed through the generated overpressure as described above through the guide channel 13.

Description

Die Erfindung betrifft eine Vorrichtung zum Herstellen von Filtern mit einem Additiv für Produkte der Tabak verarbeitenden Industrie mit den Merkmalen des Oberbegriffs von Anspruch 1.The invention relates to an apparatus for producing filters with an additive for products of the tobacco processing industry having the features of the preamble of claim 1.

Die Filter werden in einem kontinuierlichen Strang aus einem sogenannten Filtertow hergestellt, in welchen ein mit dem Additiv getränkter oder benetzter Träger eingeführt wird. Es ist auch denkbar, die Filter in mehreren parallelen Strängen herzustellen, bevorzugt mit einer Herstellung der Filter in zwei parallelen Strängen in einer Doppelstrangmaschine. Das Filtertow selbst ist beispielsweise aus einem Celluloseacetat hergestellt, welches mit einem Mittel zum Auflösen der Acetatfasern, insbesondere Triacetin, behandelt wird. Der Träger selbst kann z.B. durch einen endlosen Faden eines natürlichen oder synthetischen Grundstoffs gebildet sein, welcher so weit vernetzt ist, dass der Faden eine gewisse Zugfestigkeit aufweist. Ein solcher Träger kann z.B. durch einen Baumwollfaden, einen Acetatfaden, ein saugfähiges Band oder dergleichen, gebildet sein, welcher mit einem Additiv getränkt und/oder benetzt und kontinuierlich in den Strang des Filtermaterials eingeführt wird. Das Additiv kann z.B. Nikotin oder ein Geschmacksstoff, wie z.B. Menthol, sein, welcher der rauchenden Person einen frischen Geschmack vermitteln soll. Das Menthol wird in flüssiger Form als Heißmenthol auf den Träger aufgebracht und weist zum Zeitpunkt des Aufbringens eine Temperatur zwischen 40 und 45 Grad Celsius auf. Ein solcher Filter ist zum Beispiel aus der WO 2011/058319 A1 bekannt.The filters are produced in a continuous strand from a so-called filter tow into which a carrier impregnated or wetted with the additive is introduced. It is also conceivable to produce the filters in several parallel strands, preferably with a production of the filters in two parallel strands in a double-strand machine. The filter tow itself is made, for example, from a cellulose acetate which is treated with a means for dissolving the acetate fibers, in particular triacetin. The carrier itself may be formed, for example, by an endless thread of a natural or synthetic base material, which is crosslinked so far that the thread has a certain tensile strength. Such a carrier can be formed, for example, by a cotton thread, an acetate thread, an absorbent tape or the like, which is impregnated with an additive and / or wetted and continuously introduced into the strand of the filter material. The additive may be, for example, nicotine or a flavoring such as menthol, which should give the smoking person a fresh taste. The menthol is applied in liquid form as a hot menthol to the carrier and has a temperature at the time of application between 40 and 45 degrees Celsius. Such a filter is for example from WO 2011/058319 A1 known.

Der Träger selbst ist auf einer Rolle aufgewickelt, welche nach einer begrenzten Länge abgewickelt ist und durch eine neue Rolle desselben Trägers ausgetauscht werden muss. Zum Einfädeln des Trägers der neuen Rolle wird das freie Ende des Trägers der neuen Rolle mit dem Ende des auf der alten Rolle aufgewickelten Trägers verknotet oder miteinander verspleißt und dadurch mit in den Strang hineingezogen. Die Produkte, in welchen anschließend der Knoten angeordnet ist, werden mittels geeigneter Sensoreinrichtungen erkannt und aus dem Produktionsweg als Schussmaterial ausgeführt. Ein Problem dieser Art der Einführung des neuen Trägers ist es, dass die Herstellung des Knotens eine gewisse Geschicklichkeit und Gewissenhaftigkeit der handhabenden Person voraussetzt. Sollte der Knoten nicht ausreichend fest sein, besteht die Gefahr, dass der Knoten aufgeht, und dass das neue Ende infolgedessen nicht mit in den Strang eingezogen wird. Das neue Ende muss dann anschließend manuell sehr aufwendig in den Strang eingeführt werden, wozu die gesamte Vorrichtung im Extremfall angehalten werden muss. Die Produkte, welche während des Produktionsvorganges ohne einen eingelegten Träger hergestellt wurden, müssen ebenfalls als Schussmaterial aus dem Transportweg ausgeführt werden. Insgesamt stellt die bisher verwendete Lösung des Anknotens des neuen Trägers daher eine nicht zufriedenstellende Lösung dar.The carrier itself is wound up on a reel, which is unwound after a limited length and has to be replaced by a new reel of the same carrier. To thread the carrier of the new roll, the free end of the carrier of the new roll is knotted or spliced together with the end of the carrier wound on the old roll and thereby drawn into the skein. The products in which the node is subsequently arranged are detected by means of suitable sensor devices and executed from the production path as weft material. A problem of this type of introduction of the new carrier is that the production of the node requires a certain skill and conscientiousness of the person handling it. If the node is not sufficiently strong, there is a risk that the node will open, and consequently that the new end will not be pulled into the strand. The new end then has to be then manually inserted very costly in the strand, including the entire device must be stopped in extreme cases. The products that were produced during the production process without an inserted carrier must also be carried out as shot material from the transport route. Overall, the previously used solution of Anknotens the new carrier is therefore an unsatisfactory solution.

Aus der US 4 291 711 A ist ferner eine Vorrichtung mit den Merkmalen des Oberbegriffs von Anspruch 1 bekannt.From the US 4 291 711 A Furthermore, a device with the features of the preamble of claim 1 is known.

Aufgabe der Erfindung ist es, eine Vorrichtung zu schaffen, bei der der Träger unter Vermeidung der oben genannten Nachteile vereinfacht in den Strang eingeführt werden kann.The object of the invention is to provide a device in which the carrier can be introduced simplified while avoiding the above-mentioned disadvantages in the strand.

Zur Lösung der Aufgabe wird eine Vorrichtung mit den Merkmalen des Anspruchs 1 vorgeschlagen. Weitere bevorzugte Weiterentwicklungen sind in den Unteransprüchen angegeben.To solve the problem, a device with the features of claim 1 is proposed. Further preferred developments are specified in the subclaims.

Gemäß dem Grundgedanken der Erfindung wird vorgeschlagen, dass der Führungskanal in Bezug zu der Transportbewegung des Trägers stromabwärts zu der Drucklufteinrichtung eine größere Querschnittsfläche als stromaufwärts zu der Drucklufteinrichtung aufweist.According to the basic idea of the invention, it is proposed that the guide channel have a larger cross-sectional area with respect to the transport movement of the carrier downstream of the compressed air device than upstream of the compressed air device.

Der Vorteil der vorgeschlagenen Lösung ist darin zu sehen, dass sich die Druckluft in keinem Fall aufstaut, und der Träger gleichzeitig weitertransportiert wird.The advantage of the proposed solution is the fact that the compressed air accumulates in any case, and the carrier is simultaneously transported.

Dabei kann die Einrichtung vorzugsweise eine Steuereinrichtung zur Veränderung des Unterdrucks in dem Führungskanal aufweisen, so dass der Unterdruck zum Einziehen des Trägers bedarfsweise gesenkt werden kann. Außerdem kann der durch die Einrichtung erzeugte Unterdruck damit nach dem Einziehen des Trägers auch auf Umgebungsdruck erhöht, also quasi abgeschaltet werden, sofern das Anliegen von Unterdruck nicht mehr sinnvoll ist. Alternativ kann der Unterdruck auch verändert werden, oder es kann sogar ein höherer Überdruck in dem Führungskanal, z.B. zum Reinigen des Führungskanals, erzeugt werden. Die Steuereinrichtung kann z.B. eine Ventileinrichtung sein, mittels derer ein Druckluftstrom in der Richtung oder in seinen Kennwerten veränderbar ist. Die Steuereinrichtung kann dabei sowohl ein reiner Ein-Ausschalter als auch eine kontinuierlich den Druck oder den Volumenstrom des Druckluftstromes verändernde Steuereinrichtung sein.In this case, the device may preferably have a control device for changing the negative pressure in the guide channel, so that the negative pressure for retraction of the carrier can be reduced if necessary. In addition, the negative pressure generated by the device can thus also increased to ambient pressure after retraction of the carrier, so to speak, be switched off, if the concern of negative pressure is no longer useful. Alternatively, the negative pressure can also be changed, or even a higher overpressure in the guide channel, for example for cleaning the guide channel, can be generated. The control device may be, for example, a valve device by means of which a compressed air flow in the direction or in its characteristic values can be changed. The control device can be both a pure on-off switch and a continuous be the pressure or the volume flow of the compressed air flow changing control device.

Die Transportbewegung des Trägers kann weiter unterstützt werden, indem die über die Druckluftleitung eingeleitete Druckluft in Richtung der vorgesehenen Transportbewegung des Trägers in den Führungskanal eingeleitet wird. Durch die Vorausrichtung der eingeleiteten Druckluft wird der Träger nicht nur angesaugt, sondern anschließend zusätzlich in dieselbe Richtung weiter transportiert, so dass der Träger beim Ansaugen und dem anschließenden Weitertransport eindeutig in die vorgesehene Transportrichtung bewegt wird.The transport movement of the carrier can be further supported by the introduced via the compressed air line compressed air is introduced in the direction of the intended transport movement of the carrier in the guide channel. Due to the advance direction of the introduced compressed air, the carrier is not only sucked, but then additionally transported in the same direction, so that the carrier is clearly moved in the intended transport direction during suction and subsequent onward transport.

Weiter wird vorgeschlagen, dass die durch die Druckluftleitung zum Einführen des Trägers in den Strang in die Venturidüse eingeleitete Druckluft mit einem Überdruck von 0,1 bis 1,0 bar, vorzugsweise von 0,2 bis 0,5 bar und besonders bevorzugt mit 0,3 bar eingeleitet wird. Der vorgeschlagene Überdruck hat sich insofern als sinnvoll herausgestellt, da in diesem Fall durch die Beschleunigung der Druckluft in der Venturidüse ein ausreichend niedriger Unterdruck in der Venturidüse zum Ansaugen des Trägers bereitgestellt werden kann. Dabei ist es von besonderer Bedeutung, dass der Überdruck nicht zu hoch ist, damit der statische Druck in der Strömung durch die Beschleunigung der Druckluft in der Venturidüse unter den Umgebungsdruck fällt und der Träger angesaugt wird. Die Venturidüse sollte dazu in ihrem engen Querschnitt maximal die halbe Querschnittsfläche der zuführenden Druckluftleitung aufweisen, in welcher der vorgeschlagene Überdruck anliegt.It is further proposed that the compressed air introduced through the compressed air line for introducing the carrier into the strand into the Venturi nozzle with an overpressure of 0.1 to 1.0 bar, preferably from 0.2 to 0.5 bar and particularly preferably 0, 3 bar is initiated. The proposed overpressure has proven to be useful insofar as in this case a sufficiently low negative pressure in the Venturi nozzle can be provided for sucking the carrier by the acceleration of the compressed air in the venturi. It is of particular importance that the overpressure is not too high, so that the static pressure in the flow by the acceleration of the compressed air in the Venturi nozzle falls below the ambient pressure and the carrier is sucked. The Venturi nozzle should have in its narrow cross-section at most half the cross-sectional area of the supplying compressed air line, in which the proposed overpressure is applied.

Ferner wird vorgeschlagen, dass die Druckluftleitung in Bezug zu der Transportbewegung des Trägers stromaufwärts zu einer Aufgabeeinrichtung zur Aufgabe eines Additivs auf den Träger an den Führungskanal angeschlossen ist. Der Vorteil dieser Weiterentwicklung ist darin zu sehen, dass der Träger dadurch nicht durch die Aufgabeeinrichtung hindurch angesaugt werden muss.It is also proposed that the compressed air line is connected to the guide channel in relation to the transport movement of the carrier upstream of a feed device for applying an additive to the carrier. The advantage of this development is the fact that the carrier does not have to be sucked through the feeding device.

Ferner wird vorgeschlagen, dass nach dem Einführen des Trägers in den Strang durch die Druckluftleitung Druckluft mit einem Überdruck von 2,0 bis 5,0 bar, und bevorzugt von 4,0 bar in den Führungskanal eingeleitet wird. Durch den im Vergleich zum Ansaugvorgang des Trägers sehr viel höheren anschließend anliegenden Druck der Druckluft wirkt die Druckluft in diesem Fall als Sperrluft, welche verhindert, dass das Additiv entgegen der Transportrichtung aus der Aufgabeeinrichtung austritt.It is also proposed that after the introduction of the carrier in the strand through the compressed air line compressed air at an overpressure of 2.0 to 5.0 bar, and preferably from 4.0 bar in the guide channel is initiated. By the comparison with the suction of the wearer much higher subsequent subsequent pressure of the compressed air, the compressed air acts in this case as sealing air, which prevents the additive from escaping from the feeding device against the transport direction.

Ferner kann der Unterdruck auch in einem Abschnitt des Führungskanals erzeugt werden, welcher unmittelbar an einen Einführabschnitt angrenzt, in dem der Träger in den Strang eingeführt wird. Der Vorteil dieser Anordnung ist darin zu sehen, dass der Träger dadurch bis unmittelbar vor den Einführabschnitt angesaugt wird, wobei der mit Unterdruck beaufschlagte Abschnitt des Führungskanals und der Einführabschnitt in einem Abschnitt auch gemeinsam mit Unterdruck beaufschlagt werden können. Der Unterdruck könnte dabei auch an den Einführabschnitt angelegt werden und durch die Anschlussstelle des Führungskanals hindurch in dem Führungskanal wirken, so dass der Träger praktisch von dem Einführabschnitt her angesaut wird.Further, the negative pressure can also be generated in a portion of the guide channel, which immediately adjacent to an insertion, in which the carrier is introduced into the strand. The advantage of this arrangement can be seen in the fact that the carrier is sucked in until immediately before the insertion, wherein the acted upon under negative pressure portion of the guide channel and the insertion can be acted upon in a section also together with negative pressure. The negative pressure could also be applied to the insertion section and act through the connection point of the guide channel in the guide channel, so that the carrier is practically sowed from the insertion section ago.

In diesem Fall sollte die durch die Drucklufteinrichtung eingeleitete Druckluft mit einem Überdruck von 1,0 bis 4,5 bar, vorzugsweise von 1,5 bis 3,0 bar und besonders bevorzugt mit 2,0 bar eingeleitet werden, damit der Träger prozesssicher angesaugt und in den Strang eingeführt wird.In this case, the compressed air introduced by the compressed air device should be introduced with an overpressure of 1.0 to 4.5 bar, preferably from 1.5 to 3.0 bar and particularly preferably 2.0 bar, so that the carrier sucked process reliable and is introduced into the strand.

Weiter wird vorgeschlagen, dass der Führungskanal an seiner Einführseite eine Einführöffnung mit einer Öffnungsfläche aufweist, welche maximal doppelt so groß wie die Querschnittsfläche des Trägers ist. Durch die vorgeschlagene Bemessung der Einführöffnung wird diese durch den eingeführten Träger so weit verengt, dass die Strömungsgeschwindigkeit der nachströmenden Luft in dem den Träger umgebenden Ringspalt stark ansteigt, und der Träger praktisch durch die hohe Strömungsgeschwindigkeit in dem Ringspalt mitgerissen wird.It is further proposed that the guide channel has on its insertion side an insertion opening with an opening area which is at most twice as large as the cross-sectional area of the support. As a result of the proposed dimensioning of the insertion opening, it is narrowed by the inserted support to such an extent that the flow velocity of the inflowing air in the annular gap surrounding the support rises sharply, and the carrier is practically entrained by the high flow rate in the annular gap.

Die Erfindung wird im Folgenden anhand bevorzugter Ausführungsformen unter Bezugnahme auf die beigefügten Figuren erläutert. Dabei zeigt:

Fig. 1:
einen Ausschnitt einer erfindungsgemäßen Vorrichtung zum Herstellen von Filtern mit einem Additiv;
Fig. 2:
einen vergrößerten Ausschnitt eines Führungskanals der Vorrichtung gemäß einer ersten Ausführungsform der Erfindung; und
Fig. 3:
einen vergrößerten Ausschnitt eines Führungskanals der Vorrichtung gemäß einer zweiten Ausführungsform der Erfindung.
The invention will be explained below with reference to preferred embodiments with reference to the accompanying figures. Showing:
Fig. 1:
a detail of an inventive device for producing filters with an additive;
Fig. 2:
an enlarged section of a guide channel of the device according to a first embodiment of the invention; and
3:
an enlarged section of a guide channel of the device according to a second embodiment of the invention.

In der Fig. 1 ist ein Ausschnitt einer Vorrichtung zum Herstellen von Filtern mit einem Additiv für Produkte der Tabak verarbeitenden Industrie zu erkennen, der ein strangförmiger endloser Träger 1 z.B. in Form eines Baumwollfadens zugeführt wird. Ferner wird der Vorrichtung ein endloser Strang 5 eines Filtermaterials zugeführt. Der Strang 5 des Filtermaterials wird in bekannter Weise über eine Trichtereinrichtung 6 einer Formatgarnitur, bestehend aus einem Formatgrund 8 und einem oder mehreren Formatoberteilen 7, zugeführt, in welcher der Strang 5 auf einen kleineren Durchmesser komprimiert und mit einem Umhüllungsstreifen formfixiert wird. Der Strang 5 wird anschließend in einer nachfolgenden Bearbeitungsstation in mehrfachlange Filter einer vorbestimmten Länge geschnitten. Der Träger 1 wird in einem sich durch eine Zuführeinrichtung 4 erstreckenden Führungskanal 13 einer Führungseinrichtung 21 zugeführt, mittels derer der Träger 1 in den Strang 5 des Filtermaterials eingeführt wird.In the Fig. 1 is a section of an apparatus for producing filters with an additive for products of the tobacco processing industry to recognize, which is supplied to a strand-shaped endless support 1, for example in the form of a cotton thread. Further, the device is fed to an endless strand 5 of a filter material. The strand 5 of the filter material is fed in a known manner via a funnel device 6 of a garniture consisting of a format base 8 and one or more upper format parts 7, in which the strand 5 is compressed to a smaller diameter and is fixed in shape with a wrapping strip. The strand 5 is then cut in a subsequent processing station in multiple-length filter of a predetermined length. The carrier 1 is placed in a guide channel 13 of a guide device 21 extending through a feed device 4 fed, by means of which the carrier 1 is introduced into the strand 5 of the filter material.

In der Zuführeinrichtung 4 wird der Träger 1 über eine Umlenkeinrichtung 10 umgelenkt und über eine Einführöffnung 20 in eine zentrische Bohrung 22 eines Druckluftanschlussstückes 9 eingeführt. Ferner weist das Druckluftanschlussstück 9 noch einen Druckluftanschluss 14 und einen strömungstechnisch an den Druckluftanschluss 14 angeschlossenen konischen Ringspalt 15 mit einer konstanten Spaltweite auf, welcher in die zentrische Bohrung 22 mündet. Das Druckluftanschlussstück 9 umfasst ein Basisteil 23 mit einer konischen Ausnehmung, welche an ihrem radial inneren Abschnitt in die zentrische Bohrung 22 übergeht. Ferner ist an dem Druckluftanschluss 14 eine konische Gegenfläche vorgesehen, welche nach dem Ansetzen des Druckluftanschlusses 14 in einem Abstand zu der Fläche der konischen Ausnehmung des Basisteils 23 zu liegen kommt und den konischen Ringspalt 15 begrenzt. Die zentrische Bohrung 22 bildet den ersten Abschnitt des Führungskanals 13, in dem der Träger 1 geführt ist. In Transportrichtung des Trägers 1 stromabwärts zu dem Druckluftanschlussstück 9 ist eine Mischkammer 2 vorgesehen, in welcher das Additiv auf den Träger 1 aufgebracht wird. Dazu ist in der Mischkammer 2 ein in Transportrichtung des Trägers 1 gerichteter Zuströmkanal 12 vorgesehen, in welchem das auf den Träger 1 aufzubringende Additiv zugeführt wird. Der Zuströmkanal 12 mündet in Transportrichtung des Trägers 1 in den Führungskanal 13, so dass das Additiv bereits mit einer in Transportrichtung des Trägers 1 gerichteten Bewegung auf den Träger 1 aufgebracht und von diesem mitgerissen wird. Nach dem Durchlaufen der Mischkammer 2 wird der Träger 1 durch den im weiteren Verlauf durch einen beheizten Verteilabschnitt 3 verlaufenden Führungskanal 13 geführt, in welchem sich das Additiv auf dem Träger 1 vergleichmäßigt, bis der Träger 1 schließlich durch die Führungseinrichtung 21 in den Strang 5 eingeführt wird.In the feed device 4, the carrier 1 is deflected by a deflection device 10 and introduced via an insertion opening 20 in a central bore 22 of a compressed air connection piece 9. Furthermore, the compressed air connection piece 9 also has a compressed air connection 14 and a conical annular gap 15 which is fluidically connected to the compressed air connection 14 and has a constant gap width, which opens into the central bore 22. The compressed air connection piece 9 comprises a base part 23 with a conical recess, which merges at its radially inner portion into the central bore 22. Further, a conical mating surface is provided on the compressed air connection 14, which comes to rest after the attachment of the compressed air connection 14 at a distance from the surface of the conical recess of the base part 23 and limits the conical annular gap 15. The central bore 22 forms the first portion of the guide channel 13, in which the carrier 1 is guided. In the transport direction of the carrier 1 downstream of the compressed air connection piece 9, a mixing chamber 2 is provided, in which the additive is applied to the carrier 1. For this purpose, a directed in the transport direction of the carrier 1 inflow channel 12 is provided in the mixing chamber 2, in which the applied to the carrier 1 additive is supplied. The inflow channel 12 opens in the direction of transport of the carrier 1 into the guide channel 13, so that the additive is already applied to the carrier 1 with a movement directed in the direction of transport of the carrier 1 and entrained by this. After passing through the mixing chamber 2, the carrier 1 is guided through the laterally extending through a heated distribution section 3 guide channel 13, in which the additive on the carrier 1 is uniformed, until the carrier 1 is finally introduced by the guide means 21 in the strand 5.

Zum Einfädeln des Trägers 1 in die Vorrichtung wird er durch eine kleine Öffnung 20 in die zentrische Bohrung 22 des Druckluftanschlussstückes 9 eingeführt, wie in der Fig. 2 zu erkennen ist. Die Öffnung 20 ist verhältnismäßig klein und weist eine Querschnittsfläche von maximal der dreifachen Querschnittsfläche des Trägers 1 auf, so dass bereits die Öffnung 20 eine Führungsfunktion für den Träger 1 wahrnimmt. Anschließend wird über den Druckluftanschluss 14 Druckluft mit einem Überdruck von 0,3 bar in den Ringspalt 15 eingeblasen, welche aufgrund der Konizität und der dadurch bedingten Verringerung der Querschnittsfläche des Ringspaltes 15 in demselben beschleunigt wird, so dass der statische Druck in der Druckluftströmung schließlich unter den statischen Umgebungsdruck sinkt. Durch das Absinken des statischen Druckes und die hohe Strömungsgeschwindigkeit wird der Träger 1 angesaugt und mitgerissen und schließlich in den Führungskanal 13 hineingedrückt. Dabei hat sich herausgestellt, dass das Ansaugen und das Weitertransportieren des Trägers 1 gänzlich ohne einen manuellen Eingriff erfolgt, der Träger 1 wird praktisch ausschließlich durch die Druckluft und die wirkenden Druckverhältnisse angesaugt und weitertransportiert.For threading the carrier 1 in the device, it is inserted through a small opening 20 in the central bore 22 of the compressed air connection piece 9, as in the Fig. 2 can be seen. The opening 20 is relatively small and has a cross-sectional area of at most three times the cross-sectional area of the carrier 1, so that even the opening 20 performs a guiding function for the carrier 1. Subsequently, compressed air with an overpressure of 0.3 bar is blown into the annular gap 15 via the compressed air connection 14, which is accelerated due to the conicity and consequent reduction in the cross-sectional area of the annular gap 15 in the same, so that the static pressure in the compressed air flow finally under the static ambient pressure drops. Due to the decrease in the static pressure and the high flow velocity of the carrier 1 is sucked and entrained and finally pushed into the guide channel 13. It has been found that the suction and the further transporting of the carrier 1 takes place entirely without manual intervention, the carrier 1 is sucked in virtually exclusively by the compressed air and the acting pressure conditions and further transported.

Das Druckluftanschlussstück 9 ist in Transportrichtung T des Trägers 1 stromaufwärts zu der Mischkammer 2 angeordnet. Durch die vorgeschlagene Anordnung des Druckluftanschlussstückes 9 kann durch eine sich an das Einfädeln des Trägers 1 anschließende Druckbeaufschlagung des Ringspaltes 15 mit einem Überdruck von mindestens 2 bar eine Sperrluft erzeugt werden, welche verhindert, dass das Additiv zum Beispiel bei einer Übersättigung entgegen der Transportrichtung T des Trägers 1 aus der Mischkammer 2 austritt. In dieser Ausführungsform bilden der Druckluftanschluss 14 und der Ringspalt 15 die Drucklufteinrichtung zur Erzeugung des Unterdruckes und der Sperrluft.The compressed air connection piece 9 is arranged in the transport direction T of the carrier 1 upstream of the mixing chamber 2. The proposed arrangement of the compressed air connection piece 9 can be generated by a subsequent to the threading of the carrier 1 pressurization of the annular gap 15 with an overpressure of at least 2 bar a sealing air, which prevents the additive, for example, in a supersaturation opposite to the transport direction T of Carrier 1 off the mixing chamber 2 emerges. In this embodiment, the compressed air connection 14 and the annular gap 15 form the compressed air device for generating the negative pressure and the sealing air.

In der Fig. 3 ist eine alternative Ausführungsform der Erfindung zu erkennen, bei welcher ein in den Führungskanal 13 integrierter Düseneinsatz 16 vorgesehen ist. Der Düseneinsatz 16 umfasst einen Abschnitt des Führungskanals 13 und einen in einem Winkel A von kleiner als 90 Grad zu dem zugeführten Träger 1 bzw. zu der Transportrichtung T des Trägers 1 ausgerichteten, in den Führungskanal 13 mündenden Druckluftkanal 18 mit einem eingeschraubten Druckluftanschluss 14. Dabei ist es von besonderer Bedeutung, dass die Druckluft bei dieser Anordnung der Drucklufteinrichtung mit einem Überdruck von 1,0 bis 4,5, bevorzugt von 1,5 bis 3,0 und besonders bevorzugt von 2,0 bar über den Druckluftkanal 18 in den Führungskanal 13 eingeleitet wird, damit der Träger 1 mit der nötigen Kraft angesaugt und weitertransportiert wird. Der Druckluftkanal 18 weist eine Querschnittsfläche auf, welche in der Fläche gleichgroß wie die Querschnittsfläche des Führungskanals 13 ist. Der Druckluftkanal 18 mündet in den Führungskanal 13, welcher stromabwärts der Transportrichtung T in einem Abschnitt 19 mit einer größeren Querschnittsfläche geformt ist. Da durch den Abschnitt 19 die Summe der durch den Führungskanal 13 und den Druckluftkanal 18 zugeführten Luftströmungen abtransportiert werden muss, und ein Aufstauen der Luft für den Transport des Trägers 1 in dem Abschnitt 19 von erheblichem Nachteil wäre, ist die größere Querschnittsfläche des Abschnittes 19 für das Ansaugen des Trägers 1 von besonderer Bedeutung. Aufgrund des erhöhten Volumenstromes wird der Träger 1 dann weiter in Transportrichtung T in den Führungskanal 13 gedrängt. Ferner ist die größere Querschnittsfläche des Führungskanals 13 stromabwärts zu dem Druckluftkanal 18 insofern von Vorteil, da der Träger 1 dadurch vereinfacht weitertransportiert werden kann, ohne dass dabei die Gefahr besteht, dass der Träger 1 an den Rändern hängenbleibt bzw. die Öffnung des Führungskanals 13 nicht findet. In dieser Ausführungsform kann der Träger 1 nach dem Austritt aus dem Abschnitt 19 des Führungskanals 13 durch die Trichtereinrichtung 6 oder die Führungseinrichtung 4 unmittelbar in den Strang 5 eingeführt werden. Der Druckluftkanal 18 bildet hier eine Venturidüse zur Erzeugung eines in dem Führungskanal 13 wirkenden Unterdruckes, durch den der Träger 1 angesaugt wird. Dabei ist es von besonderer Bedeutung, dass stromabwärts zu dem Druckluftkanal 18 mit dem engen Querschnitt ein Abschnitt 19 des Führungskanals 13 mit einer größeren Querschnittsfläche vorgesehen ist, damit die Strömung wieder verzögert wird und der statische Druck in der Strömung wieder ansteigt.In the Fig. 3 an alternative embodiment of the invention can be seen, in which a nozzle insert 16 integrated in the guide channel 13 is provided. The nozzle insert 16 comprises a section of the guide channel 13 and a compressed air channel 18 which opens at an angle A of less than 90 degrees to the supplied carrier 1 or the transport direction T of the carrier 1 and opens into the guide channel 13 with a compressed air connection 14 screwed in it is of particular importance that the compressed air in this arrangement of the compressed air device with an overpressure of 1.0 to 4.5, preferably from 1.5 to 3.0 and particularly preferably from 2.0 bar via the compressed air channel 18 in the guide channel 13 is initiated, so that the carrier 1 is sucked in with the necessary force and further transported. The compressed air channel 18 has a cross-sectional area which is the same in area as the cross-sectional area of the guide channel 13. The compressed air channel 18 opens into the guide channel 13 which is formed downstream of the transport direction T in a portion 19 having a larger cross-sectional area. Since the sum of the air flows supplied through the guide channel 13 and the compressed air channel 18 must be removed by the section 19, and a damming of the air for the transport of the carrier 1 in the section 19 would be a considerable disadvantage, the larger cross-sectional area of the section 19 for the suction of the carrier 1 of particular importance. Due to the increased volume flow of the carrier 1 is then pushed further in the transport direction T in the guide channel 13. Furthermore, the larger cross-sectional area of the guide channel 13 downstream of the compressed air channel 18 is advantageous in that the carrier 1 can thereby be transported further in a simplified manner, without the risk of the carrier 1 getting caught on the edges or not finding the opening of the guide channel 13. In this embodiment, the carrier 1 can be introduced directly into the strand 5 after emerging from the section 19 of the guide channel 13 through the funnel device 6 or the guide device 4. The compressed air channel 18 here forms a Venturi nozzle for generating a negative pressure acting in the guide channel 13, through which the carrier 1 is sucked. It is of particular importance that downstream of the compressed air channel 18 with the narrow cross-section, a portion 19 of the guide channel 13 is provided with a larger cross-sectional area, so that the flow is delayed again and the static pressure in the flow increases again.

Nach dem Ansaugen und dem Einführen des Trägers 1 in den Strang 5 kann die Druckluft abgeschaltet werden. Der Träger 1 wird dann von dem Strang 5 weiter mitgezogen.After sucking and inserting the carrier 1 in the strand 5, the compressed air can be switched off. The carrier 1 is then pulled along by the strand 5 on.

Der Vorteil der vorgeschlagenen Lösung ist darin zu sehen, dass der Träger 1 sehr einfach eingeführt werden kann, ohne dass dazu ein freies Ende eines bereits in dem Strang befindlichen Trägers 1 vorhanden sein muss. Ferner kann das Einführen des Trägers 1 auch während des Betriebes der Vorrichtung vorgenommen werden.The advantage of the proposed solution is the fact that the carrier 1 can be introduced very easily, without the need for a free end of a carrier already in the strand 1 must be present. Furthermore, the insertion of the carrier 1 can also be carried out during the operation of the device.

Die Einrichtung zum Erzeugen des Unterdruckes zum Ansaugen bzw. zum Erzeugen des Überdruckes zum Weitertransportieren des Trägers 1 kann dabei an einer beliebigen Stelle der Führungseinrichtung 4 angeordnet werden. Bei der in der Fig. 2 dargestellten Ausführungsform wird das Einführen des Trägers 1 in den Strang 5 dadurch bewirkt, indem die Einrichtung an dem Ende der Zuführeinrichtung 4 angeordnet ist, an dem der Träger 1 in die Zuführeinrichtung eingeführt wird. Der Träger 1 wird in dieser Ausführungsform der Erfindung nur über eine kurze Strecke in den Ringspalt 15 angesaugt und dann durch den erzeugten Überdruck wie oben beschrieben durch den Führungskanal 13 hindurchgedrückt. Bei dem in der Fig. 3 beschriebenen Ausführungsbeispiel ist die Einrichtung zum Erzeugen des Unterdrucks an der Führungseinrichtung 21 oder dem Einführabschnitt des Trägers 1, also an dem dem Formatabschnitt zugewandten Ende der Zuführeinrichtung 4, angeordnet, so dass der Träger 1 aufgrund des erzeugten Unterdruckes durch die Zuführeinrichtung 4 hindurchgezogen wird.The device for generating the negative pressure for suction or for generating the overpressure for further transporting the carrier 1 can be arranged at any point of the guide device 4. When in the Fig. 2 illustrated embodiment, the insertion of the carrier 1 in the strand 5 is effected by the device at the end the feed device 4 is arranged, on which the carrier 1 is introduced into the feed device. The carrier 1 is sucked in this embodiment of the invention only over a short distance in the annular gap 15 and then pushed through the generated overpressure as described above through the guide channel 13. In the in the Fig. 3 described embodiment, the means for generating the negative pressure on the guide means 21 or the insertion of the carrier 1, ie at the format section facing the end of the feeder 4, arranged so that the carrier 1 is pulled through the feeder 4 due to the generated negative pressure.

Claims (9)

  1. Apparatus for producing filters with an additive (17) for products of the tobacco processing industry, including
    - a continuously fed strand (5) of a filter material,
    - a continuously fed rod-shaped substrate (1),
    - a feeding device (4) by means of which the substrate (1) is inserted into the strand (5) of the filter material, and
    - a locating channel (13) provided in the feeding device (4), in which locating channel the substrate (1) is guided, wherein
    - a device for generating an underpressure in at least one portion of the locating channel (13) is provided on the apparatus, wherein
    - the device is formed by a compressed-air device which is connected to the locating channel (13) via a conical annular gap (15) opening into the locating channel (13), characterized in that
    - the locating channel (13) in relation to the transport motion (T) of the substrate (1) shows a larger cross-sectional area downstream the compressed-air device than upstream the compressed-air device.
  2. Apparatus according to claim 1, characterized in that
    - the device comprises a control device for varying the underpressure in the locating channel (13).
  3. Apparatus according to one of the claims 1 or 2, characterized in that
    - the compressed air introduced via the compressed-air device is introduced into the locating channel (13) in the direction of the intended transport motion (T) of the substrate (1).
  4. Apparatus according to one of the claims 1 to 3, characterized in that
    - the compressed air introduced by the compressed-air device is introduced at an overpressure of 0.1 to 1.0 bar, preferably of 0.2 to 0.5 bar, and particularly preferable at 0.3 bar.
  5. Apparatus according to one of the claims 1 to 4, characterized in that
    - the compressed-air device in relation to the transport motion (T) of the substrate (1) is connected to the locating channel (13) upstream an application device for applying the additive to the substrate (1).
  6. Apparatus according to claim 5, characterized in that
    - after inserting the substrate (1) into the strand (5) compressed air is introduced into the locating channel (13) by the compressed-air device at an overpressure of 2.0 to 5.0 bar, and preferably of 4.0 bar.
  7. Apparatus according to one of the claims 1 to 3, characterized in that
    - the underpressure is generated in a portion of the locating channel (13) which is directly adjacent to an insertion portion in which the substrate (1) is inserted into the strand (5).
  8. Apparatus according to claim 7, characterized in that
    - the compressed air introduced by the compressed-air device is introduced at an overpressure of 1.0 to 4.5 bar, preferably of 1.5 to 3.0 bar, and particularly preferable at 2.0 bar.
  9. Apparatus according to any one of the preceding claims, characterized in that
    - the locating channel (13) on its inlet side comprises an inlet aperture (20) having an aperture area with a maximum size of three times the size of the cross-sectional area of the substrate (1).
EP14154312.4A 2013-02-11 2014-02-07 Device for manufacturing filters with an additive for products from the tobacco processing industry Not-in-force EP2764782B1 (en)

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PL14154312T PL2764782T3 (en) 2013-02-11 2014-02-07 Device for manufacturing filters with an additive for products from the tobacco processing industry

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DE102013202182.8A DE102013202182A1 (en) 2013-02-11 2013-02-11 Device for producing filters with an additive for products of the tobacco processing industry

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EP2764782B1 true EP2764782B1 (en) 2018-04-04

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CN (1) CN103976473B (en)
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Publication number Priority date Publication date Assignee Title
DE102015201781A1 (en) * 2015-02-02 2016-08-04 Hauni Maschinenbau Ag Method and device for producing filters of the tobacco processing industry

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Publication number Priority date Publication date Assignee Title
GB918598A (en) * 1958-05-21
US3050430A (en) * 1959-11-12 1962-08-21 Eastman Kodak Co Jet and method of filter manufacture
US4179323A (en) * 1973-08-27 1979-12-18 Liggett Group Inc. Method for making a hollow filter rod
US4291711A (en) * 1979-03-27 1981-09-29 American Filtrona Corporation Tobacco smoke filter providing tobacco flavor enrichment, and method for producing same
DE10010176B4 (en) * 2000-03-02 2005-10-06 Reemtsma Cigarettenfabriken Gmbh Method and device for producing an additive-treated filter cable
US7074170B2 (en) * 2002-03-29 2006-07-11 Philip Morris Usa Inc. Method and apparatus for making cigarette filters with a centrally located flavored element
CN1830340B (en) * 2005-03-11 2011-01-26 吴晨晓 High efficiency tar reducing harm reducing filter tip bar and its production equipment
AU2006201296A1 (en) * 2005-03-30 2006-10-19 Victor Ree Tobacco Smoking Apparatus
EP2110031A1 (en) * 2008-04-18 2009-10-21 Philip Morris Products S.A. Filter making apparatus
DE102009022790A1 (en) * 2009-05-27 2010-12-02 Hauni Maschinenbau Aktiengesellschaft Apparatus for processing filter bowl line in tobacco processing industry, has filter bowl guide path, along which filter bowl line is guided in transport direction
GB0916539D0 (en) * 2009-09-21 2009-10-28 British American Tobacco Co Method and apparatus for introducing objects into filter rod material
GB0920397D0 (en) 2009-11-20 2010-01-06 Filtrona Int Ltd Tobacco smoke filter
CN202265265U (en) * 2011-10-19 2012-06-06 安徽丹凤集团桐城玻璃纤维有限公司 Yarn removing gun

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EP2764782A1 (en) 2014-08-13
DE102013202182A1 (en) 2014-08-14
CN103976473A (en) 2014-08-13
CN103976473B (en) 2018-12-14
PL2764782T3 (en) 2018-09-28

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