EP2764782B1 - Dispositif de fabrication de filtres avec un additif pour des produits de l'industrie de traitement du tabac - Google Patents

Dispositif de fabrication de filtres avec un additif pour des produits de l'industrie de traitement du tabac 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
Authority
EP
European Patent Office
Prior art keywords
carrier
compressed
substrate
locating channel
bar
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.)
Not-in-force
Application number
EP14154312.4A
Other languages
German (de)
English (en)
Other versions
EP2764782A1 (fr
Inventor
Jörg-Dieter Paech
Jörg Selbach
Stefan Mündel
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to PL14154312T priority Critical patent/PL2764782T3/pl
Publication of EP2764782A1 publication Critical patent/EP2764782A1/fr
Application granted granted Critical
Publication of EP2764782B1 publication Critical patent/EP2764782B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Claims (9)

  1. Dispositif de fabrication de filtres comportant un additif (17) pour des produits de l'industrie de traitement du tabac, comportant :
    - un boyau (5), amené en continu, d'une matière filtrante,
    - un support (1) amené en continu en forme de boyau,
    - un dispositif d'alimentation (4) au moyen duquel le support (1) est introduit dans le boyau (5) de la matière filtrante, et
    - un canal de guidage (13) ménagé dans le dispositif d'alimentation (4), dans lequel canal de guidage est guidé le support (1), dans lequel
    - un moyen destiné à générer une dépression dans au moins une section du canal de guidage (13) est ménagé sur le dispositif,
    - le moyen est formé par un moyen à air comprimé, lequel est raccordé au canal de guidage (13) par l'intermédiaire d'une fente annulaire (15) conique débouchant dans le canal de guidage (13),
    caractérisé en ce que
    - le canal de guidage (13), par rapport au mouvement de transport (T) du support (1), présente en aval du moyen à air comprimé une section transversale plus grande qu'en amont du moyen à air comprimé.
  2. Dispositif selon la revendication 1, caractérisé en ce que
    - le moyen présente un moyen de commande destiné à modifier la dépression dans le canal de guidage (13).
  3. Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que
    - l'air comprimé introduit par l'intermédiaire du moyen à air comprimé est introduit dans le canal de guidage (13) en direction du mouvement de transport (T) prévu du support (1).
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que
    - l'air comprimé introduit au moyen du moyen à air comprimé est introduit à une surpression de 0,1 à 1,0 bar, de préférence de 0,2 à 0,5 bar et de manière particulièrement préférée à 0,3 bar.
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que
    - le moyen à air comprimé, par rapport au mouvement de transport (T) du support (1), est raccordé au canal de guidage (13) en amont d'un moyen de chargement destiné à charger l'additif sur le support (1).
  6. Dispositif selon la revendication 5, caractérisé en ce que
    - après l'introduction du support (1) dans le boyau (5), de l'air comprimé est introduit dans le canal de guidage (13) au moyen du moyen à air comprimé à une surpression de 2,0 à 5,0 bar, et de préférence de 4,0 bar.
  7. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que
    - la dépression est générée dans une section du canal de guidage (13), laquelle est directement adjacente à une section d'introduction, dans laquelle le support (1) est introduit dans le boyau (5).
  8. Dispositif selon la revendication 7, caractérisé en ce que
    - l'air comprimé introduit au moyen du moyen à air comprimé est introduit à une surpression de 1,0 à 4,5 bar, de préférence de 1,5 à 3,0 bar, et de manière particulièrement préférée à 2,0 bar.
  9. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que
    - le canal de guidage (13) présente sur son côté d'introduction une ouverture d'introduction (20) ayant une surface d'ouverture qui est au maximum trois fois la taille de la section transversale du support (1).
EP14154312.4A 2013-02-11 2014-02-07 Dispositif de fabrication de filtres avec un additif pour des produits de l'industrie de traitement du tabac Not-in-force EP2764782B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14154312T PL2764782T3 (pl) 2013-02-11 2014-02-07 Urządzenie do wytwarzania filtrów z substancją dodatkową dla produktów przemysłu tytoniowego

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013202182.8A DE102013202182A1 (de) 2013-02-11 2013-02-11 Vorrichtung zum Herstellen von Filtern mit einem Additiv für Produkte der Tabak verarbeitenden Industrie

Publications (2)

Publication Number Publication Date
EP2764782A1 EP2764782A1 (fr) 2014-08-13
EP2764782B1 true EP2764782B1 (fr) 2018-04-04

Family

ID=50068896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14154312.4A Not-in-force EP2764782B1 (fr) 2013-02-11 2014-02-07 Dispositif de fabrication de filtres avec un additif pour des produits de l'industrie de traitement du tabac

Country Status (4)

Country Link
EP (1) EP2764782B1 (fr)
CN (1) CN103976473B (fr)
DE (1) DE102013202182A1 (fr)
PL (1) PL2764782T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015201781A1 (de) * 2015-02-02 2016-08-04 Hauni Maschinenbau Ag Verfahren und Vorrichtung zum Herstellen von Filtern der Tabak verarbeitenden Industrie

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB918598A (fr) * 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 (de) * 2000-03-02 2005-10-06 Reemtsma Cigarettenfabriken Gmbh Verfahren und Vorrichtung zur Herstellung eines mit Additiv behandelten Filterkabels
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 (zh) * 2005-03-11 2011-01-26 吴晨晓 一种高效降焦减害嘴棒及其生产设备
AU2006201296A1 (en) * 2005-03-30 2006-10-19 Victor Ree Tobacco Smoking Apparatus
EP2110031A1 (fr) * 2008-04-18 2009-10-21 Philip Morris Products S.A. Appareil de fabrication de filtres
DE102009022790A1 (de) * 2009-05-27 2010-12-02 Hauni Maschinenbau Aktiengesellschaft Vorrichtung zur Bearbeitung mindestens eines Filtertowstranges
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 (zh) * 2011-10-19 2012-06-06 安徽丹凤集团桐城玻璃纤维有限公司 一种打纱枪

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN103976473B (zh) 2018-12-14
CN103976473A (zh) 2014-08-13
PL2764782T3 (pl) 2018-09-28
DE102013202182A1 (de) 2014-08-14
EP2764782A1 (fr) 2014-08-13

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