EP0941673B1 - Procédé et dispositif pour la fabrication de tiges de filtre pour des articles en forme de tige dans l'industrie du tabac - Google Patents

Procédé et dispositif pour la fabrication de tiges de filtre pour des articles en forme de tige dans l'industrie du tabac Download PDF

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Publication number
EP0941673B1
EP0941673B1 EP99104259A EP99104259A EP0941673B1 EP 0941673 B1 EP0941673 B1 EP 0941673B1 EP 99104259 A EP99104259 A EP 99104259A EP 99104259 A EP99104259 A EP 99104259A EP 0941673 B1 EP0941673 B1 EP 0941673B1
Authority
EP
European Patent Office
Prior art keywords
strip
filter tow
section
filter
air stream
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.)
Expired - Lifetime
Application number
EP99104259A
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German (de)
English (en)
Other versions
EP0941673A1 (fr
Inventor
Firdausia Dr. Chehab
Stefan Fietkau
Franz-Peter Arnold
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
Publication of EP0941673A1 publication Critical patent/EP0941673A1/fr
Application granted granted Critical
Publication of EP0941673B1 publication Critical patent/EP0941673B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 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 invention relates to a method for producing filter rods for rod-shaped Article of the tobacco processing industry, in which one withdrawn from a stock and stretched filter tow stripe stretched along a conveyor line, with sprayed the filter material dissolving application liquid and then one the strip width is subjected to gathering.
  • the invention also relates to a device for producing filter rods for rod-shaped articles of the tobacco processing industry, with one on one of a filter towstrip drawn and spread out along a Stretching device, one stretching along the filter tow strip an application line with an application liquid that dissolves the filter material spraying application device as well as the stripe width of the filter tow stripe along a shirring device reducing shirring device.
  • Filters for filter cigarettes and other smokable articles in the tobacco processing industry are usually made from a filter tow material which is made of a loose, crimped fiber fabric.
  • a preferred material for the manufacture of cigarette filters is a filter tow made of cellulose acetate threads.
  • the filter tow material is delivered in bales and must be prepared for the production of a filter strand.
  • the lowest possible filter weight with optimal, ie high, drag resistance is aimed for. In order to achieve these optimal properties, it is known, for example, according to US Pat. No.
  • the invention has for its object to ensure homogeneous preparation and distribution of the filter material in the filter strand by process-supporting action on the filter tow strip even at high conveying speeds.
  • the filter tow strip is exposed to an air flow flowing in the conveying direction of the filter tow strip at least on a section of the conveying section.
  • conditions which are optimally adapted to the respective treatment stage can be achieved in that the flow speed of the air flow corresponds at least approximately to the conveying speed of the filter tow strip, the flow speed of the air flow preferably being greater than or equal to the conveying speed of the filter tow strip.
  • the effectiveness of the proposed measures can be further increased by the fact that the filter towstrip is accompanied by the air flow on both broad sides, with the additional advantage that fibers detached from the filter towstrip or fibers adhering loosely to it are completely removed.
  • the filter tow strip be acted upon by the air flow during its stretching and also during its gathering.
  • Their property as accompanying the filter tow strip and loose fibers and dust absorbing and discharging air flow is optimized in particular in the aforementioned treatment zones according to a further proposal in that the air flow is generated by an effective suction at the end of a section of the conveyor line.
  • the filter tow strip be subjected to one side in a relaxation zone extending between stretching and spraying by the air flow generated by compressed air supply and suction.
  • the device for carrying out the method mentioned at the outset consists in that the filter tow strip is guided at least on a section of the conveying section formed by the stretching section, the application section and the gathering section through a wind tunnel charged with an air flow guided in the conveying direction of the filter tow section.
  • the effectiveness of the wind tunnel in the sense of a supporting tow guidance is best when the end of a section of the route impacted by the air flow is connected to the suction side of a fan giving the air flow an approximately equal or greater speed relative to the conveying speed of the filter tow strip.
  • An additional increase in effectiveness for guiding and removing detached or loosely adhering fibers from the filter tow strip is provided by the fact that the end of the route section has a suction air connection on both broad sides of the filter tow strip.
  • a process-supporting effect in particularly sensitive treatment phases of the filter tow strip is possible according to further embodiments in that a suction air connection is provided at the outlet of the stretching device and at the outlet of the gathering device.
  • an additional possibility for adjusting the air flow is given in that the wind tunnel is limited by channel walls that can be adjusted transversely to the filter tow strip.
  • the wind tunnel In order to be able to maintain a laminar air flow in particularly critical zones, provision is also made for the wind tunnel to be limited on the outlet side by a flow profile which essentially deflects the suction air flow by 180 °. According to a further development, a stable straight-line design of the filter tow strip after leaving the stretching zone is ensured in that in a relaxation zone extending between the stretching device and the application device, a blowing air nozzle opening into the wind tunnel and a suction air connection connected to the wind tunnel are provided.
  • the advantage achieved by the invention is that especially at high Conveying speeds are increasingly negatively influencing the preparation process Factors such as dynamic pressure or air friction are rendered ineffective.
  • the laminar air flow accompanying the filter tow strip prevents air eddies, so that a trouble-free or homogeneous specific tow treatment in the stretching zone, the relaxation zone and the gathering zone is guaranteed.
  • FIG. 1 is part of a processing arrangement disclosed, for example, in the aforementioned US Pat. No. 5,590,449 for treating a filter tow strip 1 made of cellulose acetate and drawn from a bale in a manner not shown here.
  • a stretching section 3 an application section 4 with a relaxation zone 6 assigned between the stretching section 3 and the application section 4 and a gathering section 7 are provided in succession with respect to the conveying direction (arrow 2).
  • a stretching device forming the stretching section 3 has an input roller pair 8 with motor-driven rollers 9, 11 and an output roller pair 12 with motor-driven rollers 13, 14, the peripheral speeds of which are somewhat greater than the peripheral speed of the rollers 9, 11, so that the elastic filter tow strip 1 is stretched in a defined manner.
  • the pair of rollers 12 is followed by a further pair of rollers 16 made of motor-driven rollers 17, 18, the peripheral speeds of which are lower than those of the rollers 13, 14, so that the filter tow strip 1 relaxes slightly when it is conveyed in accordance with arrow 2.
  • the roller pairs 12 and 16 thus delimit the application section 4, in which an application device 19 in the form of a spraying device 21 is arranged, which from both sides carries the filter tow strip 1 transported in the direction of the arrow 2 with fine droplets of a solvent for the filter tow material, for example triazetin, sprayed.
  • the gathering section 7 is sequential to the application section 4 in which the filter tow strip 1 is conveyed by a motor-driven deflection roller 22 in the direction of arrow 2 and the width of which is constantly reduced by gathering devices, also not shown, which are also disclosed in US Pat. No. 5,590,449.
  • US Pat. No. 5,590,449. In a manner also not shown and disclosed in US Pat. No.
  • the filter tow strip 1 is then introduced into the actual filter rod machine via a stuffing nozzle and an inlet funnel.
  • the filter tow strip 1 is passed through a wind tunnel 23, which extends between the roller pairs 8 and 12 on both sides of the filter tow strip, in which an air flow 24, which runs parallel to the filter tow strip and in its conveying direction (arrow 2), is generated, which approximately has the same or greater speed (for example in the order of 10 m / sec) relative to the conveying speed of the filter tow strip 1 (for example in the order of 600 m / min).
  • the wind tunnel 23 is provided at the end of the stretching section 3 with a suction air connection 26 connected to the suction side of a blower and at the entrance of the stretching section 3 with an air inlet 27.
  • the wind tunnel 23 is delimited by channel walls 28 which can be adjusted transversely to the broad side of the filter tow strip 1.
  • the wind tunnel 23 is provided at the outlet end with a flow profile 29 which deflects the air flow 24 by 180 °. According to FIGS.
  • the filter tow strip 1 is passed in the region of the relaxation zone 6 through a wind tunnel 31, in which it is acted upon on one side by a parallel air flow 32 which flows through a blowing air nozzle 33 opening into the wind tunnel 31 and one with the wind tunnel 31 connected suction air connection 34 is generated.
  • an angled deflector plate 36 and a guide plate 37 are provided on the upper side at the inlet of the wind tunnel 31.
  • the filter tow strip 1 is likewise passed through a wind tunnel 38, in which it is acted upon on both sides by a parallel air flow 39 which is generated by a suction air connection 41 and air inlet 40 connected to the suction side of a blower.
  • ionizing rods 42 are installed, such as those sold by the HAUG company under the type designation El-RD Tandem with the power supply unit under the type designation EN-70, and with which the filter tow strip 1 from adherent, for which further processing is freed of disadvantageous electrostatic charges.
  • the mode of action of the laminar air flows 24, 32, 39 in the region of the Stretching section 3 or relaxation zone 6 or gathering section 7 is such that the respective preparation process by preventing air friction or air whirling, d. H. Stretching, relaxation and gathering defined and without interference can take place, these supporting the process air flows at the same time as a transport medium for the removal of dust and loosely adhering or detached fibers. There is also a safe tow guide in the relaxation zone 6 in the area of the transition from the stretching section 3 to the application section 4 guaranteed.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • X-Ray Techniques (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Claims (16)

  1. Procédé pour la fabrication de tiges de filtre pour des articles en forme de tige de l'industrie de transformation du tabac, selon lequel une bande de filasse à filtre (1), extraite et déployée d'une réserve, est étirée le long d'une voie de transport, est aspergée avec du liquide d'enduction corrodant le matériau pour filtre et est ensuite soumise à une contraction diminuant la largeur de la bande, caractérisé en ce que la bande de filasse à filtre (1), au moins sur un tronçon (3; 6; 7) de la voie de transport, est exposée à un courant d'air (24; 32; 39) circulant dans la direction de transport (2) de la bande de filasse à filtre.
  2. Procédé selon la revendication 1, caractérisé en ce que la vitesse d'écoulement du courant d'air (24; 32; 39) correspond, au moins approximativement, à la vitesse de transport de la bande de filasse à filtre (1).
  3. Procédé selon la revendication 2, caractérisé en ce que la vitesse d'écoulement du courant d'air (24; 32; 39) est, de préférence, supérieure ou égale à la vitesse de transport de la bande de filasse à filtre (1).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la bande de filasse à filtre (1) est accompagnée par le courant d'air (24; 39) sur ses deux grandes faces.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la bande de filasse à filtre (1) est sollicitée par le courant d'air (24) pendant son étirage.
  6. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la bande de filasse à filtre (1) est sollicitée par le courant d'air (39) pendant sa contraction.
  7. Procédé selon l'une des revendications 1 à 6, caractérisé en ce que le courant d'air (24; 39) est chaque fois produit au moyen d'une aspiration (26; 41) active à l'extrémité d'un tronçon respectif (3; 7) de la voie de transport.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que la bande de filasse à filtre (1) est sollicitée sur une seule face, dans une zone de relâchement de tension (6) s'étendant entre l'étirage et l'aspersion, par le courant d'air (32) produit par introduction d'air comprimé et aspiration.
  9. Installation pour la fabrication de tiges de filtre pour des articles en forme de tige de l'industrie de transformation du tabac, comportant un dispositif d'étirage agissant, le long d'une section d'étirage (3), sur une bande de filasse à filtre (1) extraite et déployée d'une réserve, un dispositif d'enduction (19) qui, le long d'une section d'enduction (4), asperge la bande de filasse à filtre avec un liquide d'enduction corrodant le matériau pour filtre, ainsi qu'un dispositif de contraction diminuant, le long d'une section de contraction (7), la largeur de la bande de filasse à filtre, caractérisée en ce que la bande de filasse à filtre (1), au moins sur un tronçon de la voie de transport formée par la section d'étirage (3), la section d'enduction (4) et la section de contraction (7), est conduite à travers un tunnel de soufflerie (23; 31; 38) alimenté par un courant d'air (24; 32; 39) dirigé dans la direction de transport (2) de la bande de filasse à filtre.
  10. Installation selon la revendication 9, caractérisée en ce que l'extrémité d'un tronçon de voie respectif, alimenté par le courant d'air (24; 39), est reliée à l'aspiration d'un ventilateur communiquant au courant d'air, une vitesse approximativement égale ou supérieure à la vitesse de transport de la bande de filasse à filtre (1).
  11. Installation selon la revendication 9 ou 10, caractérisée en ce que l'extrémité du tronçon de voie présente un raccord à air aspiré (26; 41) du côté des deux grandes faces de la bande de filasse à filtre (1).
  12. Installation selon l'une des revendications 9 à 11, caractérisée en ce qu'à la sortie du dispositif d'étirage (8, 12) est prévu un raccord à air aspiré (26).
  13. Installation selon l'une des revendications 9 à 12, caractérisée en ce qu'à la sortie du dispositif de contraction (16, 22) est prévu un raccord à air aspiré (41).
  14. Installation selon l'une des revendications 9 à 13, caractérisée en ce que le tunnel de soufflerie (23) est délimité par des parois de tunnel (28) ajustables dans une direction transversale à la bande de filasse à filtre (1).
  15. Installation selon l'une des revendications 9 à 14, caractérisée en ce que 1e tunnel de soufflerie (23) est délimité, du côté de la sortie, par un profilé d'écoulement (29) qui dévie le courant d'air aspiré (24) sur sensiblement 180°.
  16. Installation selon l'une des revendications 9 à 15, caractérisée en ce que dans une zone de relâchement de tension (6) s'étendant entre le dispositif d'étirage (8, 12) et le dispositif d'enduction (21), sont prévus une buse d'air soufflé (33), qui débouche dans le tunnel de soufflerie (31), et un raccord à air aspiré (34) relié au tunnel de soufflerie.
EP99104259A 1998-03-13 1999-03-03 Procédé et dispositif pour la fabrication de tiges de filtre pour des articles en forme de tige dans l'industrie du tabac Expired - Lifetime EP0941673B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19811014 1998-03-13
DE19811014A DE19811014A1 (de) 1998-03-13 1998-03-13 Verfahren und Vorrichtung zum Herstellen von Filterstäben für stabförmige Artikel der tabakverarbeitenden Industrie

Publications (2)

Publication Number Publication Date
EP0941673A1 EP0941673A1 (fr) 1999-09-15
EP0941673B1 true EP0941673B1 (fr) 2002-08-21

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ID=7860838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104259A Expired - Lifetime EP0941673B1 (fr) 1998-03-13 1999-03-03 Procédé et dispositif pour la fabrication de tiges de filtre pour des articles en forme de tige dans l'industrie du tabac

Country Status (8)

Country Link
US (1) US6263882B1 (fr)
EP (1) EP0941673B1 (fr)
JP (2) JP4319281B2 (fr)
CN (1) CN1106808C (fr)
DE (2) DE19811014A1 (fr)
ES (1) ES2179563T3 (fr)
PL (1) PL188570B1 (fr)
WO (1) WO1999048342A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3123877A1 (fr) 2015-07-29 2017-02-01 PT. Gudang Garam Tbk. Procédé et installation destine à la préparation d'au moins une bande de matériau de filtre destinée à fabriquer des tiges de filtre sans papier pour des articles à fumer en forme de tiges de l'industrie de traitement du tabac

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DE10031848B4 (de) * 2000-07-04 2008-10-30 Hauni Maschinenbau Ag Verfahren und Vorrichtung zum Herstellen von Filterstäben der tabakverarbeitenden Industrie
US6739025B2 (en) * 2001-02-06 2004-05-25 Hong Kong Polytechnic University Method of improving properties of open end yarn
DE10200326A1 (de) 2002-01-07 2003-07-17 Hauni Maschinenbau Ag Vorrichtung und Verfahren zum Aufbereiten wenigstens eines Streifens aus Filtermaterial für die tabakverarbeitende Industrie
SE0200745D0 (sv) * 2002-03-12 2002-03-12 Iropa Ag Pneumatischer Fadenstrecker und Fadenverarbeitungssystem
DE10354924B4 (de) * 2003-11-25 2024-01-18 Körber Technologies Gmbh Vorrichtung zum Aufbereiten von Filtertowmaterial sowie Vorrichtung zur Herstellung von Filtern
DE102004004688A1 (de) * 2004-01-29 2005-08-25 Hauni Maschinenbau Ag Separate Entspannung und Besprühung eines Filtertowstreifens
DE102006011587B4 (de) 2006-03-10 2008-04-03 Hauni Maschinenbau Ag Aufbereitung eines Filtermaterialstreifens der Tabak verarbeitenden Industrie
DE102006018101A1 (de) * 2006-04-18 2007-10-25 Hauni Maschinenbau Ag Aufbereitungseinheit zur Aufbereitung mindestens eines Filtertowstreifens sowie eine Vorrichtung mit mindestens zwei derartigen Aufbereitungseinheiten
ITBO20060647A1 (it) * 2006-09-20 2006-12-20 Gd Spa Macchina per la produzione di filtri di sigarette.
EP1911362A1 (fr) * 2006-09-29 2008-04-16 Philip Morris Products S.A. Dispositif pour augmenter le volume d'une bande de cordon filtrant pour cigarettes
DE102006049823A1 (de) * 2006-10-19 2008-04-24 Hauni Maschinenbau Ag Vorrichtung und Verfahren zur Aufbereitung von Filtermaterial für Zigarettenfilter oder dergleichen
ITBO20070569A1 (it) * 2007-08-07 2007-11-06 Gd Spa Apparecchiatura per la lavorazione di almeno una striscia di materiale da filtro nell'industria del tabacco.
DE102008003368A1 (de) * 2008-01-08 2009-07-09 Hauni Maschinenbau Aktiengesellschaft Vorrichtung zum Transport eines Filtertows
DE102008005185A1 (de) * 2008-01-18 2009-07-30 Hauni Maschinenbau Aktiengesellschaft Vorrichtung zum Transport von Tow
DE102008016827A1 (de) * 2008-04-01 2009-10-08 Hauni Maschinenbau Ag Vorrichtung zum Transport eines Filtertows
WO2010055120A1 (fr) * 2008-11-14 2010-05-20 Philip Morris Products S.A. Procédé et appareil pour introduire des objets dans un article à fumer
DE102009022759A1 (de) * 2009-05-26 2010-12-02 Hauni Maschinenbau Ag Aufbereitung eines Filtermaterialstreifens der Tabak verarbeitenden Industrie
PL2797442T3 (pl) * 2011-12-30 2019-01-31 Philip Morris Products S.A. Urządzenie i sposób doprowadzania roli ciągłej karbowanego materiału arkuszowego
EP2844790B1 (fr) * 2012-05-01 2018-03-21 Continental Structural Plastics, Inc. Procédé pour séparer les filaments de carbone d'une mêche pour obtenir des fibres de carbone coupées
CN108013506B (zh) * 2018-01-05 2024-08-06 河南中烟工业有限责任公司 丝束除杂质装置及使用该装置的滤棒成型生产线
CN114984692B (zh) * 2022-05-06 2023-11-10 滁州卷烟材料厂 一种滤棒成型机丝束飞花在线收集装置

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3123877A1 (fr) 2015-07-29 2017-02-01 PT. Gudang Garam Tbk. Procédé et installation destine à la préparation d'au moins une bande de matériau de filtre destinée à fabriquer des tiges de filtre sans papier pour des articles à fumer en forme de tiges de l'industrie de traitement du tabac

Also Published As

Publication number Publication date
CN1106808C (zh) 2003-04-30
DE59902389D1 (de) 2002-09-26
JP2002507831A (ja) 2002-03-12
US6263882B1 (en) 2001-07-24
EP0941673A1 (fr) 1999-09-15
DE19811014A1 (de) 1999-09-16
WO1999048342A1 (fr) 1999-09-23
JP4319281B2 (ja) 2009-08-26
PL331916A1 (en) 1999-09-27
PL188570B1 (pl) 2005-02-28
JPH11290055A (ja) 1999-10-26
CN1228946A (zh) 1999-09-22
ES2179563T3 (es) 2003-01-16

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