EP1886589B1 - Vorrichtung zur Behandlung von in Tabakprodukten verwendeten Filtermaterialien - Google Patents

Vorrichtung zur Behandlung von in Tabakprodukten verwendeten Filtermaterialien Download PDF

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Publication number
EP1886589B1
EP1886589B1 EP07113753A EP07113753A EP1886589B1 EP 1886589 B1 EP1886589 B1 EP 1886589B1 EP 07113753 A EP07113753 A EP 07113753A EP 07113753 A EP07113753 A EP 07113753A EP 1886589 B1 EP1886589 B1 EP 1886589B1
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EP
European Patent Office
Prior art keywords
stream
filter material
nozzles
table element
fluid
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
EP07113753A
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English (en)
French (fr)
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EP1886589A1 (de
Inventor
Fiorenzo Draghetti
Ivan Eusepi
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GD SpA
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GD SpA
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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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212—Applying additives to filter materials
    • A24D3/022—Applying additives to filter materials with liquid additives, e.g. application of plasticisers
    • 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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0295—Process control means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe

Definitions

  • the present invention relates to a device for the treatment of filter material utilized in tobacco products, typically cigarettes.
  • the manufacture of filter tips for cigarettes involves processing a filter material consisting for instance in a ribbon or stream of fibrous cellulose acetate tow, which is stretched initially, then impregnated with plasticizers, and finally gathered around a central axis to form a continuous rod, which is enveloped in a paper plugwrap.
  • the impregnating step takes place as the stretched ribbon is directed through special treatment devices designed to invest the advancing material with a flow of plasticizer, typically triacetin, which at the normal operating temperature and pressure of the treatment devices will remain in the liquid state. Accordingly, the ribbon is sprayed with a flow of liquid consisting in particles of predetermined quantity and size, in such a manner that a prescribed quantity of the triacetin will be absorbed.
  • plasticizer typically triacetin
  • Prior art type devices used to implement the step in question comprise a container, or bath, holding a predetermined quantity of triacetin, and a revolving brush partly immersed in the triacetin, which when set in rotation at a normal operating speed will project a flow of liquid droplets toward a ribbon of cellulose acetate advancing in close proximity.
  • both of the aforementioned devices present a major drawback, associated with the difficulty of regulating the quantity of triacetin delivered in such a way as to maintain a uniform distribution of the plasticizer over the filter material.
  • the quantity cannot be regulated either by varying the flow rate of the plasticizer, in the case of the nozzles, or by increasing the speed of rotation in the case of the brush, as this would produce a change in the size of the triacetin particles delivered ultimately to the target.
  • the bearing rod is displaceable towards ad away from the material and the guns are slidably mounted on the bearing rod for adjusting the width of the spraying cones and for adjusting the overlapping portions of the cones produced by adjacent guns.
  • the object of the present invention is to provide a device for the treatment of filter material used in tobacco products, such as will be unaffected by the drawbacks mentioned above.
  • the object of the invention is to provide a device for treating filter material used in tobacco products, such as will allow of regulating the quantity of triacetin delivered, and maintaining a uniform distribution of the plasticizer over the ribbon or stream of filter material.
  • a further object of the invention is to provide a device for the treatment of filter material used in tobacco products, having the merits of simplicity in construction and a low cost of realization.
  • numeral 1 denotes a device, in its entirety, for treating filter material used in tobacco products, in accordance with the present invention.
  • the device 1 is applicable to machines 100 used in the manufacture of filters for tobacco products, and for cigarettes in particular, substantially of the type illustrated in figure 1 .
  • Such machines 100 comprise a magazine 101 holding filter material, and more exactly containing one or more bales 102 of filter material, of which one only is illustrated in figure 1 .
  • Two respective fibrous tows 103 are drawn from the bales 102 and directed by means of conventional guide devices toward a station at which the filter material is processed.
  • the filter material passes through a processing station comprising at least one blower device 104 of conventional type, producing a flow of air by which the fibrous tows 103 are expanded and formed into continuous streams "F" of given width.
  • the processing station will comprise three such blower devices 104, stationed along a feed line "L" as illustrated in figure 1 .
  • the aforementioned processing station further comprises a device 1 according to the present invention for treating the filter material, located downstream of the blower devices 104, by which the continuous streams "F" of fibrous tow are taken up and plasticized through impregnation with a suitable plasticizer fluid.
  • the treated streams "F" advance thereafter toward a transfer device 105 by which the continuous tows are taken up on the infeed side, gathered each about a respective centre axis, and caused to emerge on the outfeed side in the form of ropes 106, each advancing above a corresponding web 107 of previously gummed paper, and finally wrapped in the gummed webs 107 to fashion respective rods 108 of filter material.
  • the rods 108 obtained in this way are fed toward a device 109 that will test their density, thence to a cutter head 110 by which the selfsame rods 108 are divided transversely into respective successions of plugs, not illustrated.
  • the device 1 according to the present invention for treating filter material used in tobacco products indicated in the central part of figure 1 , will now be described in detail.
  • the device 1 comprises feed means (conventional in embodiment and therefore not illustrated in detail) by which the continuous stream "F" of fibrous tow is caused to advance along a predetermined path denoted "A".
  • the device 1 further comprises at least one delivery unit 3 from which a plasticizer fluid "P”, such as triacetin, is directed at a surface 2 of the stream "F".
  • a plasticizer fluid "P" such as triacetin
  • the delivery unit 3 is placed below the stream “F” of fibrous tow, so as to project the fluid "P” upwardly at the stream “F” as it advances in a longitudinal feed direction denoted "A" in figure 2 .
  • control means 4 serving to regulate the quantity of fluid "P" directed at the stream “F” of fibrous tow, acting on the delivery unit 3 in such a way as to adjust its position relative to the path followed by the stream "F".
  • Such control means 4 comprise at least one table element 5, also a plurality of spray nozzles 6 carried by the table element and forming part of the delivery unit 3, by which the aforementioned fluid "P" is projected at the stream "F” of fibrous tow as an array of respective liquid cones.
  • the table element 5 is capable of movement between a first operating position, in which the nozzles 6 lie entirely within the transverse dimensional limits of the stream "F" ( figure 3c ), as defined by two longitudinal edges 7 of the selfsame stream "F", and at least a second operating position in which at least certain of the nozzles 6 are located outside the selfsame transverse dimensional limits ( figures 3a and 3b ).
  • the table element 5 presents a surface 8 directed toward the aforementioned surface 2 of the stream "F”, and referable to a predominating longitudinal dimension that extends transversely to the longitudinal feed direction "A".
  • the multiple spray nozzles 6 carried by the table element 5 are arranged in close order along the full length of the surface 8 presented by the element.
  • Figure 3c shows the table element 5 occupying the first operating position, in which all of the nozzles 6 are located within the transverse dimensional limits of the stream "F", so that a greater quantity of fluid "P" is directed at the filter material.
  • Figure 3b shows the table element 5 occupying an intermediate operating position, in which more of the nozzles 6 are located within the transverse dimensional limits of the stream "F" than is the case in the second position.
  • the movement of the table element 5 is effected by inducing rotation about a respective fulcrum point 10, in such a way as to position the ends 9 internally or externally of the longitudinal edges 7 of the stream "F".
  • control means 4 include motion-inducing means 11 by which the table element 5 is made to rotate between the first and second position, pivoting on the fulcrum point 10, the fulcrum being located on a median line of the table element 5.
  • such motion-inducing means 11 present a substantially vertical shaft 12 of which a first end 12a is fixed to the table element 5 at the fulcrum point 10, and a second end 12b opposite to the first end 12a is associated with a respective motor 13.
  • the device 1 comprises a collection tank 14 positioned with an open cavity facing toward the advancing stream "F" of fibrous tow.
  • the tank 14 functions as a channel 15 in which to catch the fluid "P" delivered by the nozzles 6 when not absorbed by the stream "F".
  • the device 1 further comprises a pair of apron elements 16, each interposed between one end 9 of the surface 8 and a longitudinal edge 7 of the stream "F".
  • each apron element 16 is associated with a relative side wall of the tank 14 and located below the level of the stream "F", presenting one respective edge 16a in alignment with the corresponding longitudinal edge 7.
  • each apron element 16 is directed toward the nozzles 6 located at one respective end 9 of the table element 5 when in the second operating position.
  • the quantity of fluid "P" directed at the stream “F” of fibrous tow is regulated by inducing motion in the table element 5.
  • the table 5 it becomes possible to include a greater or lesser number of nozzles 6 within the transverse dimensional limits of the stream "F", and at the same time increase or reduce the overlap between areas targeted by the single spray cones. Accordingly, the quantity of fluid "P" directed at the stream “F” can be regulated without altering the flow rate, thus maintaining a uniform distribution of the fluid "P" along and across the stream.
  • the device 1 is structurally simple, as also is the step of regulating the flow of plasticizer fluid, accomplished simply by rotating the table element 5.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (13)

  1. Vorrichtung zur Behandlung von in Tabakprodukten verwendetem Filtermaterial, bestehend aus Mitteln für den Vorschub eines Endlosstrangs (F) aus Filtermaterial entlang eines vorbestimmten Vorschubpfades (A), mehreren Sprühdüsen (6) zum Aufbringen einer Weichmacherflüssigkeit (P) auf eine Oberfläche (2) des Strangs (F), und Steuereinrichtungen (4), die auf die Sprühdüsen (6) einwirken, indem sie diese Sprühdüsen (6) selektiv im Verhältnis zu dem vom Filtermaterialstrang (F) verfolgten Pfad (A) anordnen, um die Menge der auf den Strang (F) aufgebrachten Flüssigkeit (P) zu regulieren, dadurch gekennzeichnet, dass die Steuereinrichtungen (4) zumindest einen Tisch (5) beinhalten, der die Düsen (6) trägt und eine Längsabmessung aufweist, die größer ist als die Querabmessung des Filtermaterialstrangs (F), und der relativ zu der Oberfläche (2) des Strangs derart drehbar ist, dass die Anzahl der Düsen (6), die auf den Strang (F) gerichtet sind, entsprechend der relativen Anordnung des Strangs (F) zu dem Tischelement (5) erhöht oder vermindert wird.
  2. Vorrichtung nach Anspruch 1, worin das Tischelement (5) drehbar ist zwischen einer ersten Arbeitsstellung, in der die Düsen (6) vollständig innerhalb der Grenzen der Querabmessung des Strangs (F) zu liegen kommen, und zumindest einer zweiten Arbeitsstellung, in der zumindest bestimmte Düsen (6) außerhalb der Grenzen der Querabmessung des Strangs (F) angeordnet sind.
  3. Vorrichtung nach Anspruch 2, worin das Tischelement (5) eine Oberfläche (8) aufweist, die der Oberfläche (2) des Filtermaterialstrangs (F) zugewandt ist und auf der die Düsen (6) für die Ausgabe der Flüssigkeit (P) angeordnet sind.
  4. Vorrichtung nach Anspruch 3, worin die Oberfläche (8) des Tischelementes (5) eine vorherrschende Längsausrichtung aufweist, die sich quer zu der Längsvorschubrichtung (A) des Filtermaterialstrangs (F) erstreckt.
  5. Vorrichtung nach Anspruch 3 oder 4, worin die Oberfläche (8) des Tischelementes (5), wenn die zweite Arbeitsstellung eingenommen wird, im Wesentlichen perpendikular zu der Längsvorschubrichtung (A) des Filtermaterialstrangs (F) ausgerichtet ist.
  6. Vorrichtung nach den Ansprüchen 3 bis 5, worin die Oberfläche (8) des Tischelementes (5) entsprechende einander gegenüberliegende Enden (9) aufweist, die jeweils so angeordnet sind, dass sie mit einer entsprechenden Längskante (7) des Endlosstrangs (F) aus Filtermaterial übereinstimmen und so proportioniert sind, dass sie, zumindest dann, wenn das Tischelement (5) die zweite Arbeitsstellung einnimmt, außen über die Längskante (7) hervorragen.
  7. Vorrichtung nach den Ansprüchen 1 bis 6, worin die Steuereinrichtungen (4) Antriebsmittel (11) beinhalten, die dazu dienen, die Stellung der Ausgabeeinheit (3) im Verhältnis zu dem Filtermaterialstrang (F) zu verändern.
  8. Vorrichtung nach den Ansprüchen 1 und 7, worin die Antriebsmittel (11) eine Welle (12) beinhalten, die ein erstes Ende (12a) aufweist, das an einem Drehpunkt (10) am Tischelement (5) befestigt ist, und ein zweites Ende (12b) aufweisen, das mit einem Motor (13) wirkverbunden ist.
  9. Vorrichtung nach Anspruch 8, worin der Drehpunkt (10) auf einer Mittellinie des Tischelementes (5) liegt.
  10. Vorrichtung nach den vorhergehenden Ansprüchen, die ferner einen Sammelbehälter (14) beinhaltet, der eine im Wesentlichen konkave Fläche aufweist, die dem Filtermaterialstrang (F) zugewandt ist und als Kanal (15) dient, in dem die von den Düsen ausgegebene überschüssige Flüssigkeit aufgefangen wird.
  11. Vorrichtung nach den Ansprüchen 6 und 10, die ferner ein Paar Schürzenelemente (16) beinhaltet, die jeweils zwischen einem Ende (9) der Oberfläche (8) des Tischelementes (5) und einer Längskante (7) des Strangs (F) angeordnet sind.
  12. Vorrichtung nach Anspruch 11, worin die Unterseite (17) jedes Schürzenelementes (16) jeweils den Düsen (6) zugewandt ist, die sich an einem entsprechenden Ende (9) der Oberfläche (8) des Tischelementes (5) befinden, wenn die zweite Arbeitsstellung eingenommen ist.
  13. Maschine zur Herstellung von Zigarettenfiltern, in der zumindest ein Endlosstrang (F) aus Filtermaterial einer Verarbeitungsstation zugeführt wird, die eine Vorrichtung (1) für die Behandlung von in Tabakprodukten verwendetem Filtermaterial beinhaltet.
EP07113753A 2006-08-11 2007-08-03 Vorrichtung zur Behandlung von in Tabakprodukten verwendeten Filtermaterialien Not-in-force EP1886589B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000601A ITBO20060601A1 (it) 2006-08-11 2006-08-11 Dispositivo per il trattamento di materiale filtrante per articoli da fumo.

Publications (2)

Publication Number Publication Date
EP1886589A1 EP1886589A1 (de) 2008-02-13
EP1886589B1 true EP1886589B1 (de) 2010-04-14

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Application Number Title Priority Date Filing Date
EP07113753A Not-in-force EP1886589B1 (de) 2006-08-11 2007-08-03 Vorrichtung zur Behandlung von in Tabakprodukten verwendeten Filtermaterialien

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EP (1) EP1886589B1 (de)
AT (1) ATE463965T1 (de)
DE (1) DE602007005882D1 (de)
IT (1) ITBO20060601A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101933812B1 (ko) 2014-07-18 2018-12-28 니뽄 다바코 산교 가부시키가이샤 담배 필터의 제조 장치 및 제조 방법

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20110272A1 (it) * 2011-05-16 2012-11-17 Gd Spa Dipositivo per il trattamento di materiale filtrante per articoli da fumo.
EP3011847B1 (de) * 2014-10-24 2017-09-13 G.D Societa' per Azioni Einheit und verfahren zum aufbringen eines zusatzstoffes auf eine maschine zur herstellung von zigarettenfiltern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8021938V0 (it) 1980-05-30 1980-05-30 Tabu Spa Apparecchiatura per la stenditura di colle o vernici su materiali in foglio alimentati con avanzamento continuo.
DE19959034B4 (de) * 1999-12-08 2008-01-17 Hauni Maschinenbau Ag Verfahren und Vorrichtung zum Zuführen eines vorzugsweise flüssigen Zusatzstoffes auf eine bewegte Bahn
ATE377361T1 (de) * 2002-08-16 2007-11-15 Hauni Maschinenbau Ag Verfahren und einrichtung zum zuführen eines, vorzugsweise flüssigen, zusatzstoffes auf eine bewegte, ausgebreitete bahn aus filtermaterial
ITVI20030202A1 (it) * 2003-10-13 2004-01-12 Cos T A Srl Metodo per applicare in continuo un preparato su di un corpop in movimento, e relativo impianto

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101933812B1 (ko) 2014-07-18 2018-12-28 니뽄 다바코 산교 가부시키가이샤 담배 필터의 제조 장치 및 제조 방법

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Publication number Publication date
ATE463965T1 (de) 2010-04-15
ITBO20060601A1 (it) 2006-11-10
EP1886589A1 (de) 2008-02-13
DE602007005882D1 (de) 2010-05-27

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