EP1933653A1 - 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

Info

Publication number
EP1933653A1
EP1933653A1 EP06744484A EP06744484A EP1933653A1 EP 1933653 A1 EP1933653 A1 EP 1933653A1 EP 06744484 A EP06744484 A EP 06744484A EP 06744484 A EP06744484 A EP 06744484A EP 1933653 A1 EP1933653 A1 EP 1933653A1
Authority
EP
European Patent Office
Prior art keywords
equipment
strip
active portion
filter material
thread
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.)
Granted
Application number
EP06744484A
Other languages
German (de)
English (en)
Other versions
EP1933653B2 (fr
EP1933653B1 (fr
Inventor
Armando Turrini
Leonardo Balletti
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.)
GD SpA
Original Assignee
GD SpA
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36636233&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1933653(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by GD SpA filed Critical GD SpA
Publication of EP1933653A1 publication Critical patent/EP1933653A1/fr
Application granted granted Critical
Publication of EP1933653B1 publication Critical patent/EP1933653B1/fr
Publication of EP1933653B2 publication Critical patent/EP1933653B2/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 .
  • the stated object is duly realized in equipment according to the present invention for processing at least one strip of filter material, in the tobacco industry, as characterized in one or more of the claims appended .
  • -figure 1 is a schematic front view of equipment for processing a strip of filter material
  • FIG. 1 shows a detail of figure 1, viewed from the side and partly in section;
  • -figure 7 shows a detail of figure 2, enlarged and under operating conditions;
  • -figure 8 is a schematic plan view of equipment for processing two strips of filter material.
  • 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/or transversely. 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 11a is disposed transversely to the processing path P, and an anvil roller 12 of which the axis 12a lies parallel to the former axis 11a.
  • 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 smooth or rounded portions 20 and present an arcuate profile.
  • 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 similar in every respect to that of figure 1, is designed to process two strips 2 of filter material advancing side by side. Where two strips 2 are processed, 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)
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 true EP1933653A1 (fr) 2008-06-25
EP1933653B1 EP1933653B1 (fr) 2010-03-31
EP1933653B2 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
WO2016071267A1 (fr) * 2014-11-03 2016-05-12 Philip Morris Products S.A. Procédé et appareil de fabrication d'une bande ondulée
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
See references of WO2007042866A1 *

Also Published As

Publication number Publication date
ITBO20050603A1 (it) 2007-04-08
WO2007042866A1 (fr) 2007-04-19
JP2009511009A (ja) 2009-03-19
ATE462314T1 (de) 2010-04-15
DE602006013334D1 (de) 2010-05-12
CN101282659A (zh) 2008-10-08
EP1933653B2 (fr) 2016-04-13
EP1933653B1 (fr) 2010-03-31

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