EP1933653B2 - Équipement pour traiter au moins une bande de matériau filtrant dans l' industrie du tabac - Google Patents

Équipement pour traiter au moins une bande de matériau filtrant dans l' industrie du tabac Download PDF

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Publication number
EP1933653B2
EP1933653B2 EP06744484.4A EP06744484A EP1933653B2 EP 1933653 B2 EP1933653 B2 EP 1933653B2 EP 06744484 A EP06744484 A EP 06744484A EP 1933653 B2 EP1933653 B2 EP 1933653B2
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EP
European Patent Office
Prior art keywords
equipment
strip
filter material
active portion
thread
Prior art date
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Application number
EP06744484.4A
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German (de)
English (en)
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EP1933653A1 (fr
EP1933653B1 (fr
Inventor
Armando Turrini
Leonardo Balletti
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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

Definitions

  • the present invention relates to equipment for processing at least one strip of filter material in the tobacco industry.
  • the prior art embraces equipment for processing a strip of filter material fed along a predetermined path and caused, as it advances along the path, to undergo a succession of processing.steps before being directed into a filter making machine.
  • these steps will consist in a longitudinal and/or transverse pulling or stretching operation, and a step of treating the strip with additive materials.
  • the aforementioned pulling or stretching operation is accomplished using pairs of rollers, each composed typically of a threaded roller and an anvil roller.
  • the object of the present invention is to provide equipment for processing at least one strip of filter material, such as will be unaffected by the drawbacks mentioned above.
  • numeral 1 denotes equipment, in its entirety, for processing a strip 2 of filter as used in the tobacco industry, interposed between a feed unit 3 supplying the strip 2 and a filter maker, or filter assembly section, represented schematically as a block denoted 4.
  • the feed unit 3, the equipment 1 and the section denoted 4 constitute interoperative parts of a filter maker which, with the exception of the equipment 1 disclosed, is of familiar type and therefore neither illustrated nor described in detail.
  • the equipment 1 comprises a pair of guide rollers 5 and 6 combining in operation one with another, and next in sequence, along a processing path denoted P, means denoted 7, in their entirety, by which the strip 2 is stretched and pulled longitudinally and/ortransversely. Further along, the equipment 1 comprises treatment means 8 by which additives such as a plasticizing compound are applied to the strip 2 of filter material.
  • numerals 9 and 10 denoted two further guide rollers by which the strip 2 is directed toward the filter maker 4.
  • the longitudinal and/or transverse stretching and pulling means 7 include at least one pair of rollers comprising a top roller 11 of which the axis 11 a is disposed transversely to the processing path P, and an anvil roller 12 of which the axis 12a lies parallel to the former axis 11 a.
  • the upstream guide rollers 5 and 6, the processing rollers 11 and 12 and the downstream guide rollers 9 and 10 combine to provide means by which the strip 2 is fed along the processing path P.
  • a second pair of stretching and pulling rollers comprising a roller 13 of which the axis 13a is disposed transversely to the processing path P, and an anvil roller 14 of which the axis 14a lies parallel to the former axis 13a.
  • the equipment 1 might incorporate any number of paired stretching and pulling rollers.
  • the outer cylindrical surface of the top roller 11 presents a helical thread 15, whilst the anvil roller 12 is faced with resilient material.
  • the helical thread 15 describes a sinuous profile 16, with each turn presenting a crest portion denoted 17, compassed between two roots 18 connected to the crest portion 17 by way of relative flanks 19.
  • the aforementioned portions 20 are incorporated in such a way as to lie substantially tangential to the active portion 17 at all points.
  • the portions 20 in question will present a preferably constant radius of curvature, although the radius of curvature might also be variable.
  • the ratio between the size of the active portion 17, denoted D, and the pitch p of the helical thread 15, denoted 21, is nominally 0.25 and more broadly might be between 0.22 and 0.28.
  • the ratio between the size D of the active portion 17 and the pitch 21 of the helical thread 15 is nominally 0.5, and more broadly might be between 0.48 and 0.53.
  • the ratio between the size D of the active portion 17 and the pitch 21 of the helical thread 15 is nominally 0.75, and more broadly might be between 0.72 and 0.78.
  • the active portions 17 are merged with the flanks 19 by way of rounded portions 20 and present an arcuate profile.
  • the strip 2 advances in the feed direction F, drawn forward at least by the first stretching and pulling rollers 11 and 12.
  • the advancing strip 2 is subjected by the thread 15 of the top roller 11 to a longitudinal and transverse stretching action.
  • the strip 2 of material passing between the threaded roller 11 and the roller 12 of resilient material will be deformed, but without suffering any damage, and in particular without longitudinal splits or cuts occurring, given that the active portions 17 of the thread 15 are devoid of sharp corner edges.
  • the strip 2 of material emerging from the aforementioned stretching and pulling means 7 will present a more homogeneous and fuller bodied structure.
  • the equipment 1 illustrated in figure 8 is designed to process two strips 2 of filter material advancing side by side.
  • the drive systems of the respective stretching and pulling rollers might operate either independently of one another or in concert.
  • profiles 16 of the aforementioned helical threads 15 presented by the longitudinal and/or transverse stretching and pulling rollers 11 and 13 will be generated advantageously by a grinding operation, so as to obtain a precision finish.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Mechanical Operated Clutches (AREA)
  • Vehicle Body Suspensions (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (8)

  1. Équipement pour traiter au moins une bande de matériau filtrant dans l'industrie du tabac, comprenant des moyens d'alimentation par lesquels la bande (2) est avancée le long d'un parcours de traitement (P), des moyens (7) par lesquels la bande (2) est étirée et tirée longitudinalement et/ou transversalement, consistant en au moins une paire de rouleaux placés sur des côtés opposés du parcours de traitement (P), dont un rouleau (11) présente un filetage hélicoïdal (15) et l'autre est un contre-rouleau (12), ainsi que des moyens d'alimentation par lesquels la bande est dirigée vers une section de fabrication de filtres (4), le profil (16) présenté par chaque spire du filetage hélicoïdal (15), vu en coupe, incluant une partie active substantiellement plate (17) placée en contact avec la bande (2) de matériau filtrant, caractérisé en ce que ladite partie active (17) est fusionnée avec deux flancs (19) respectifs par l'intermédiaire de parties arrondies (20), garantissant ainsi l'absence de tout contact entre la bande (2) et des arêtes vives pendant le fonctionnement de l'équipement.
  2. Équipement selon la revendication 1, dans lequel les parties arrondies (20) présentent un rayon de courbure constant.
  3. Équipement selon les revendications de 1 à 2, dans lequel le rapport entre la taille de la partie active (17) et le pas (21) du filetage (15) est compris entre 0,22 et 0,28.
  4. Équipement selon les revendications de 1 à 3, dans lequel le rapport entre la taille de la partie active (17) et le pas (21) du filetage (15) est compris entre 0,47 et 0,53.
  5. Équipement selon les revendications de 1 à 4, dans lequel le rapport entre la taille de la partie active (17) et le pas (21) du filetage (15) est compris entre 0,72 et 0,78.
  6. Équipement selon les revendications de 1 à 5, comprenant deux paires de rouleaux d'étirement et de traction (11, 12 ; 13, 14) placés le long du parcours de traitement (P).
  7. Équipement selon les revendications de 1 à 6, comprenant des moyens d'alimentation par lesquels deux bandes (2) de matériau filtrant sont avancées le long du parcours de traitement (P).
  8. Équipement selon les revendications de 1 à 7, dans lequel le profil (16) du filetage hélicoïdal (15) présenté par chacun des rouleaux (11 ; 13) correspondants est obtenu par le biais d'une opération de rectification.
EP06744484.4A 2005-10-07 2006-04-11 Équipement pour traiter au moins une bande de matériau filtrant dans l' industrie du tabac Active EP1933653B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000603A ITBO20050603A1 (it) 2005-10-07 2005-10-07 Frizione a bagno d'olio
PCT/IB2006/000832 WO2007042866A1 (fr) 2005-10-07 2006-04-11 Équipement pour traiter au moins une bande de matériau filtrant dans l’industrie du tabac

Publications (3)

Publication Number Publication Date
EP1933653A1 EP1933653A1 (fr) 2008-06-25
EP1933653B1 EP1933653B1 (fr) 2010-03-31
EP1933653B2 true EP1933653B2 (fr) 2016-04-13

Family

ID=36636233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06744484.4A Active EP1933653B2 (fr) 2005-10-07 2006-04-11 Équipement pour traiter au moins une bande de matériau filtrant dans l' industrie du tabac

Country Status (7)

Country Link
EP (1) EP1933653B2 (fr)
JP (1) JP2009511009A (fr)
CN (1) CN101282659A (fr)
AT (1) ATE462314T1 (fr)
DE (1) DE602006013334D1 (fr)
IT (1) ITBO20050603A1 (fr)
WO (1) WO2007042866A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101926510B (zh) * 2009-06-23 2012-06-13 湖北中烟工业有限责任公司 太极外观滤嘴棒的生产方法及其设备
CA2963605A1 (fr) 2014-11-03 2016-05-12 Philip Morris Products S.A. Procede et appareil de fabrication d'une bande ondulee
CN105852205A (zh) * 2016-04-28 2016-08-17 宜兴市新建烟机配件有限公司 一种用于香烟过滤嘴开松机上聚氨酯橡胶辊

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB866803A (en) * 1957-01-31 1961-05-03 Gustav Schickedanz Method of making filter tips for cigarettes
CH383239A (de) * 1959-09-22 1964-10-15 Mueller Paul A Filterstöpsel für Zigaretten und Verfahren zur Herstellung desselben
NL274991A (fr) * 1961-02-21
US3317965A (en) * 1964-09-11 1967-05-09 Osaka Kiko Kabushiki Kaisha Tow filament separating apparatus
US4003684A (en) * 1971-05-13 1977-01-18 Celfil Company Establishment Apparatus for treating webs of filtering material for tobacco product filters, particularly cigarette filters
FR2418628A1 (fr) * 1978-03-03 1979-09-28 Job Ets Bardou Job Pauilhac Procede et dispositif de transformation d'une nappe fibreuse destinee a la realisation de filtres a cigarettes et filtres ainsi obtenus
US5733234A (en) * 1993-07-14 1998-03-31 Rhone-Poulenc Rhodia Aktiengesellschaft Method and apparatus for producing fiber skeins
JP3823576B2 (ja) * 1998-12-10 2006-09-20 東レ株式会社 コンタクトロール
JP2003212409A (ja) * 2002-01-28 2003-07-30 Toray Ind Inc シートロール体の製造方法および製造装置
DE10227378B4 (de) * 2002-06-20 2008-07-17 International Tobacco Machinery B.V. Walzenpaar zum Spannen von Strängen aus Filtermaterial

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Application and product development, product bulletin n°29 †

Also Published As

Publication number Publication date
EP1933653A1 (fr) 2008-06-25
ATE462314T1 (de) 2010-04-15
WO2007042866A1 (fr) 2007-04-19
CN101282659A (zh) 2008-10-08
EP1933653B1 (fr) 2010-03-31
JP2009511009A (ja) 2009-03-19
ITBO20050603A1 (it) 2007-04-08
DE602006013334D1 (de) 2010-05-12

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