EP1917871B2 - Machine de fabrication de filtres pour produits du tabac - Google Patents

Machine de fabrication de filtres pour produits du tabac Download PDF

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Publication number
EP1917871B2
EP1917871B2 EP07119422.9A EP07119422A EP1917871B2 EP 1917871 B2 EP1917871 B2 EP 1917871B2 EP 07119422 A EP07119422 A EP 07119422A EP 1917871 B2 EP1917871 B2 EP 1917871B2
Authority
EP
European Patent Office
Prior art keywords
machine
bundle
continuous
inlet portion
connecting element
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
EP07119422.9A
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German (de)
English (en)
Other versions
EP1917871B1 (fr
EP1917871A1 (fr
Inventor
Marco Esposti
Leonardo Balletti
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GD SpA
Original Assignee
GD SpA
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Publication date
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Application filed by GD SpA filed Critical GD SpA
Publication of EP1917871A1 publication Critical patent/EP1917871A1/fr
Application granted granted Critical
Publication of EP1917871B1 publication Critical patent/EP1917871B1/fr
Publication of EP1917871B2 publication Critical patent/EP1917871B2/fr
Not-in-force legal-status Critical Current
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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes
    • A24D3/0233—Filter rod forming processes by means of a garniture

Definitions

  • the present invention relates to a machine for manufacturing filters applicable to tobacco products, and in particular to cigarettes.
  • a machine is disclosed e.g. in US-A-3 645 175 .
  • the manufacture of cigarette filters involves processing a continuous stream of filter material, such as cellulose acetate, drawn from a compacted bale.
  • the stream is fed along a set path through processing stations, where it is first stretched lengthwise and crosswise and then impregnated with chemical additives, typically triacetin.
  • the filter material is gathered by shaping means into a continuous rope, or bundle, of cylindrical appearance.
  • the shaping means appear as a funnel-like duct through which the continuous stream is directed, with the result that cross sectional area of the stream is reduced by degrees, and the stream transformed ultimately into a rope or bundle of predetermined diameter.
  • a connecting element Located downstream of the funnel-like duct is a connecting element that serves to transfer and guide the stream into a wrapping station where the continuous bundle, advancing along a predetermined direction, is enveloped gradually in a continuous strip of paper material and fashioned thus into a continuous filter rod that will then be divided up into single filter plugs by a rotary cutter device.
  • the wrapping station comprises a transport belt looped around two return rollers, of which the top branch runs slidably along a tongue affording a longitudinal groove; the groove presents a cross section varying continuously between the infeed end and the outfeed end of the tongue, considered along the feed direction of the bundle, and appearing substantially cylindrical at the outfeed end, with a radius of curvature substantially equal to the radius of a filter.
  • the transport belt sliding in the aforementioned groove constitutes a garniture tape by which the strip of paper is forced to wrap around the bundle, thereby forming the aforementioned continuous filter rod.
  • the connecting element is positioned above the top branch of the transport belt and comprises a first tubular portion of funnel-like appearance, joined to the means by which the filter material is shaped into a bundle, also a second portion of trough-like appearance with a concave face directed toward the selfsame top branch of the belt.
  • the second portion presents a cross sectional profile that diminishes gradually along the feed direction of the continuous bundle, so as to avoid interference with the garniture device and allow the paper strip to wrap progressively around the bundle.
  • the forwardmost end of the second portion lies below and in close proximity to the entry point of folding means by which the two longitudinal edges of the strip of paper material are overlapped, one edge having being gummed previously, and secured to form a plugwrap around the rod.
  • feed and transfer devices of the type in question are costly in the extreme by reason both of the complex manufacturing steps involved in their production, and of the materials utilized, which must afford high resistance to wear and mechanical stresses.
  • certain devices of prior art design are equipped with a first and second portion embodied as two distinct pieces, so that a failure of the second portion will not necessarily signify replacement of the entire connecting element.
  • the feed system is set in motion until a given length of bundled filter material has emerged from the shaping means.
  • the first inlet portion of the connecting element is then disassembled, having released the fastening means by which it is held in place.
  • the leading end of the bundle is inserted a suitable distance into the first portion, by hand, whereupon the first portion can be returned to its operating position between the shaping means and the second portion of the connecting element.
  • the first portion of the connecting element needs to be disassembled.
  • the object of the present invention is to provide a filter maker unaffected by the various drawbacks associated with the prior art as described above.
  • numeral 1 denotes a machine manufacturing filters for tobacco products, in particular cigarettes, embodied in accordance with the present invention.
  • the machine 1 comprises a magazine 2 containing filter material, from which this same material is drawn off and formed into a continuous stream 3 by means not illustrated in the drawings.
  • the stream 3 is directed along a feed path P, following a direction F arrowed in figure 1 , toward longitudinal and transverse stretching means shown schematically as two pairs of contrarotating rollers denoted 4 and 5 respectively.
  • the machine 1 Downstream of the stretching means 4 and 5, the machine 1 comprises a chemical treatment unit 6 by which the advancing stream 3 of filter material is impregnated with chemical additives, for example triacetin.
  • chemical additives for example triacetin.
  • the stream 3 of filter material advances through feed means 7 provided by a plurality of guide rollers, and into a shaping device 8 of which the function is to gather the selfsame stream 3 into a continuous rope or bundle 9 of cylindrical appearance.
  • the cylindrical bundle 9 is shaped by a device 8 of funnel-like appearance designed to induce a gradual reduction in the cross-sectional area of the stream 3; to this end, the device 8 is equipped with an outlet nozzle 10 presenting across section of diameter substantially identical to the diameter of a single filter tip.
  • Numeral 11 denotes a garniture tongue along which the advancing bundle 9 is enveloped progressively in a strip 12 of paper plugwrap material, decoiled from a roll (not illustrated), so as to fashion a continuous filter rod 13.
  • the continuousfilterrod 13 Emerging at the outfeed end of the tongue 11, the continuousfilterrod 13 is divided up by a rotary cutting device 14 into single plugs 15.
  • the garniture tongue 11 appears as a block 16 presenting a horizontal top face 17 with a longitudinal groove 18.
  • the groove 18 presents a cross section varying continuously between the infeed end and the outfeed end of the tongue, along the feed direction of the bundle, and presenting a substantially cylindrical shape at the outfeed end, of which the radius of curvature is substantially equal to the radius of a filter plug.
  • the aforementioned groove 18 accommodates the sliding motion of a fabric transport belt, or garniture tape 19, looped around two rollers 20 (one only of which is indicated in the drawings) placed at the two opposite ends of the tongue 11.
  • the garniture tape 19 forces the strip 12 of paper material to wrap by degrees around the continuous bundle 9.
  • the continuous bundle 9 is fed onto the garniture tongue 11 by way of a connecting element 21 between the shaping device 8 and the selfsame tongue.
  • the connecting element 21 comprises a movable inlet portion 22 and a fixed outlet portion 23.
  • the fixed outlet portion 23 is rigidly associated by way of a relative mounting 24 ( figures 2 and 3 ) with a bracket 25 associated rigidly in turn with a vertical bulkhead 25a of the machine frame 1, and presents a trough-like appearance with a concave face directed down toward the garniture tape 19, of which the curvature remains constant and the cross sectional profile reduces gradually along the feed direction of the bundle 9.
  • the fixed portion 23 and the mounting 24 will be embodied in one piece.
  • the endmost tip 23a of the fixed portion 23 is cantilevered from the mounting 24, projecting at a level above the garniture tape 19 and below folding means 26 of which the function is to complete the rod 13 by overlapping and securing the longitudinal edges of the strip 12 of paper material, one of which having been gummed previously by gluing means not illustrated in the drawings.
  • the movable inlet portion 22 comprises a first tubular segment 27 consisting in a frustoconical collar 28 offered to the nozzle 10 of the shaping device 8, and a similarly frustoconical neck 29 attached to the collar.
  • the first tubular segment 27 extends into a second trough-like segment 30 presenting a concave face 30a directed toward the garniture tape 19, of which the curvature remains constant and the cross sectional profile reduces gradually down to a size matching the inlet end of the fixed portion 23.
  • the movable inlet portion 22 presents a plurality of through holes 31 piercing the frustoconical duct piece 29 and the second trough-like segment 30.
  • Numeral 32 denotes a hinge mechanism, in its entirety, by means of which the movable portion 22 of the connecting element 21 can be rotated between a first operating position illustrated in figure 2 , in which the gathering bundle 9 of filter material is transferred and guided from the shaping device 8 to the garniture tongue 11, and a second position of disengagement from the aforementioned operating position, illustrated in figure 3 .
  • the movable portion 22 is rigidly associated with an overslung mounting 33 hinged to the bulkhead 25a by way of a horizontal pivot 34 placed transversely to the feed direction followed by the bundle 9 and located above the downstream end of the movable portion 22.
  • the mounting 33 is connected in its turn, by way of a pivot 35 parallel with the hinge pivot 34, to a first end 36a of a linkage rod 36.
  • the second end 36b of the rod 36 is connected by way of a pivot 37, also parallel with the hinge pivot 34, to a first end 38a of a rocking arm 38 of which the second end 38b is anchored rotatably to the bulkhead 25a by way of a further pivot 39, likewise parallel with the hinge pivot 34.
  • the linkage rod 36 is furnished with a knob 40, positioned above the pivot denoted 37, by means of which to operate the hinge mechanism 32.
  • the mounting 33, rod 36 and rocking arm 38 thus combine to establish the aforementioned hinge mechanism 32, which allows the movable portion 22 to be displaced from the operating position between the nozzle 10 of the shaping device 8 and the fixed portion 23 of the connecting element 21 to the aforementioned position of disengagement, illustrated in figure 3 , in which the movable portion 22 is distanced from the feed path P and disposed with its longitudinal axis substantially vertical.
  • the operator will seize the knob 40 and pull the movable portion 22 of the connecting element 21 upwards into the position of disengagement, then set the machine 1 running long enough for a predetermined length of the bundle 9 of filter material to emerge from the nozzle 10 of the shaping device 8.
  • the leading end of the bundle 9 is inserted into the collar 28 of the movable portion 22, by hand, and advanced through a distance substantially equivalent to the longitudinal dimension of the selfsame movable portion 22.
  • the movable portion 22 of the connecting element 21 is then returned to the operating position, where the leading end of the bundle 9, now located under the second trough-like segment 30, is compressed by this same segment against the garniture tape 19 together with the interposed strip 12 of paper material.
  • the machine 1 is set in motion and the garniture tape 19 will draw the bundle 9 of filter material together with the strip 12 of paper along the groove 18 of the garniture tongue 11.
  • the step of preparing the machine for operation is rendered swift and reliable by the connecting element 21 according to the invention, since the bundle 9 of filter material can be fed onto the garniture tongue 11 with no need to remove any component parts of the connecting element 21, which are typically fragile and costly.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Claims (11)

  1. Machine de fabrication de filtres pour produits du tabac, comprenant :
    - des moyens d'alimentation (7) alimentant au moins un flux continu (3) de matériau filtrant ;
    - un dispositif de mise en forme (8) par lequel le flux (3) est rassemblé en un cordon ou faisceau cylindrique continu (9) dudit matériau filtrant ;
    - un canal de formation (11) sur lequel le faisceau (9) est enveloppé dans une bande (12) de papier pendant sa progression le long d'un parcours d'alimentation (P) prédéfini, pour former un bâtonnet-filtre continu (13) ;
    - un dispositif de coupe (14) par lequel ledit bâtonnet (13) est divisé en bouts-filtres (15) distincts,
    caractérisée
    - en ce qu'elle comprend un élément de raccordement (21) situé entre la phase de sortie du dispositif de mise en forme (8) et la phase d'entrée du canal de formation (11) le long duquel le faisceau (9) est enveloppé ;
    - en ce que l'élément de raccordement (21) comprend une portion d'entrée (22) pouvant se déplacer entre une première position fonctionnelle, dans laquelle le faisceau (9) de matériau filtrant est transféré et guidé du dispositif de mise en forme (8) au canal de formation (11), et une seconde position de désengagement de la position fonctionnelle dans laquelle la portion mobile 22 est éloignée du parcours d'alimentation P et disposée avec son axe longitudinal substantiellement vertical.
  2. Machine selon la revendication 1, dans laquelle le mouvement de la portion d'entrée (22) entre la position fonctionnelle et la position de désengagement est un mouvement alternatif.
  3. Machine selon les revendications 1 ou 2, dans laquelle la portion d'entrée mobile (22) comprend au moins un segment tubulaire (27).
  4. Machine selon la revendication 3, dans laquelle la portion d'entrée mobile (22) comprend un second segment (30) de mode de réalisation en forme d'auge présentant une face concave orientée vers le canal de formation (11).
  5. Machine selon les revendications de 1 à 4, dans laquelle l'élément de raccordement (21) comprend une portion de sortie fixe (23) de mode de réalisation en forme d'auge présentant une face concave orientée vers le canal de formation (11).
  6. Machine selon les revendications de 1 à 5, dans laquelle la portion d'entrée mobile (22) est supportée de façon articulée par l'intermédiaire d'un support (24) respectif pouvant pivoter sur un axe horizontal disposé transversalement à la direction d'alimentation suivie par le faisceau continu (9) de matériau filtrant.
  7. Machine selon la revendication 3, dans laquelle le segment tubulaire (27) de la portion d'entrée mobile (22) comprend un collier troncoconique (28).
  8. Machine selon la revendication 7, dans laquelle le segment tubulaire (27) présente un col troncoconique (29) situé en aval du collier (28), par lequel la section du faisceau continu (9) est commandée et maintenue à un diamètre prédéfini.
  9. Machine selon les revendications 4 et 5, dans laquelle le deuxième segment en forme d'auge (30) et la portion de sortie fixe en forme d'auge (23) présentent un profil transversal qui se réduit progressivement le long du parcours d'alimentation (P) suivi par le faisceau (9).
  10. Machine selon les revendications de 1 à 9, comprenant de plus des moyens (32) permettant d'induire le mouvement de la portion d'entrée mobile (22).
  11. Machine selon la revendication 10, dans laquelle les moyens permettant d'induire le mouvement comprennent un mécanisme articulé (32).
EP07119422.9A 2006-10-31 2007-10-26 Machine de fabrication de filtres pour produits du tabac Not-in-force EP1917871B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000751A ITBO20060751A1 (it) 2006-10-31 2006-10-31 Macchina confezionatrice di filtri per articoli da fumo

Publications (3)

Publication Number Publication Date
EP1917871A1 EP1917871A1 (fr) 2008-05-07
EP1917871B1 EP1917871B1 (fr) 2009-06-17
EP1917871B2 true EP1917871B2 (fr) 2016-04-13

Family

ID=39049000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07119422.9A Not-in-force EP1917871B2 (fr) 2006-10-31 2007-10-26 Machine de fabrication de filtres pour produits du tabac

Country Status (5)

Country Link
EP (1) EP1917871B2 (fr)
CN (1) CN101171978B (fr)
AT (1) ATE433678T1 (fr)
DE (1) DE602007001328D1 (fr)
IT (1) ITBO20060751A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025172922A1 (fr) * 2024-02-15 2025-08-21 International Tobacco Machinery Poland Sp. Z O.O. Procédé de fabrication et appareil de l'industrie du tabac pour produire des tiges de longueur spécifique à partir d'un brin continu de matériau de remplissage
RU2859135C2 (ru) * 2021-07-09 2026-03-30 Филип Моррис Продактс С.А. Сборочный узел и система для применения в производстве изделия, генерирующего аэрозоль, и способ изготовления сборочного узла

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0905211D0 (en) 2009-03-26 2009-05-13 British American Tobacco Co Guide nozzle for use with filter rod manufacturing apparatus
ZA200905994B (en) * 2009-08-28 2014-05-28 Tobacco Res And Dev Inst (Pty) Ltd Filter rod maker
ITBO20110206A1 (it) 2011-04-18 2012-10-19 Gd Spa Gruppo compattatore per una macchina per la produzione di filtri per sigarette.
DE102011054057A1 (de) 2011-09-29 2013-04-04 Hauni Maschinenbau Ag Vorrichtung für die Herstellung von Filtern der Tabak verarbeitenden Industrie
ITUA20163825A1 (it) 2016-05-26 2017-11-26 Gd Spa Dispositivo per la sostituzione di parti operative per macchine dell’industria del tabacco
DE102017121306A1 (de) * 2017-09-14 2019-03-14 Hauni Maschinenbau Gmbh Vorrichtung zur Halterung mindestens eines Fingers
JP2024524566A (ja) * 2021-07-09 2024-07-05 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 集合組立品

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005058079A1 (fr) † 2003-11-25 2005-06-30 Hauni Maschinenbau Aktiengesellschaft Dispositif pour preparer une meche de filtre et dispositif de production de filtres

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US3485144A (en) * 1968-01-10 1969-12-23 Brown & Williamson Tobacco Corp Garniture for continuous-rod cigarette machinery
GB1314513A (en) * 1969-04-10 1973-04-26 Molins Machine Co Ltd Continuous rod making machines
US4535789A (en) * 1983-08-02 1985-08-20 Philip Morris, Inc. Tobacco rod firmness sensor
JP2946236B2 (ja) * 1990-10-24 1999-09-06 株式会社三條機械製作所 タバコフィルターロッドの製造法及びその製造装置
JPH06125762A (ja) * 1992-10-21 1994-05-10 Daicel Chem Ind Ltd たばこ用フィルターロッドの製造装置
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ITBO20040202A1 (it) * 2004-04-08 2004-07-08 Gd Spa Metodo e macchina per il confezionamento di filtri per articoli da fumo
DE102005032366A1 (de) * 2005-07-08 2007-01-11 Hauni Maschinenbau Ag Formatbildungseinrichtung der Tabak verarbeitenden Industrie

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005058079A1 (fr) † 2003-11-25 2005-06-30 Hauni Maschinenbau Aktiengesellschaft Dispositif pour preparer une meche de filtre et dispositif de production de filtres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Brochure "AF 2E/KDF 2E Filterstab-Produktionslinie" †

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2859135C2 (ru) * 2021-07-09 2026-03-30 Филип Моррис Продактс С.А. Сборочный узел и система для применения в производстве изделия, генерирующего аэрозоль, и способ изготовления сборочного узла
WO2025172922A1 (fr) * 2024-02-15 2025-08-21 International Tobacco Machinery Poland Sp. Z O.O. Procédé de fabrication et appareil de l'industrie du tabac pour produire des tiges de longueur spécifique à partir d'un brin continu de matériau de remplissage

Also Published As

Publication number Publication date
ITBO20060751A1 (it) 2007-01-30
CN101171978B (zh) 2011-12-07
CN101171978A (zh) 2008-05-07
DE602007001328D1 (de) 2009-07-30
ATE433678T1 (de) 2009-07-15
EP1917871B1 (fr) 2009-06-17
EP1917871A1 (fr) 2008-05-07

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