EP1692957A1 - Traitement d'une bande de matière filtrante pour l'industrie du tabac - Google Patents

Traitement d'une bande de matière filtrante pour l'industrie du tabac Download PDF

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Publication number
EP1692957A1
EP1692957A1 EP06000357A EP06000357A EP1692957A1 EP 1692957 A1 EP1692957 A1 EP 1692957A1 EP 06000357 A EP06000357 A EP 06000357A EP 06000357 A EP06000357 A EP 06000357A EP 1692957 A1 EP1692957 A1 EP 1692957A1
Authority
EP
European Patent Office
Prior art keywords
rollers
roller
roller arrangement
strip
arrangement
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.)
Withdrawn
Application number
EP06000357A
Other languages
German (de)
English (en)
Inventor
Jörg Tobias
Franz-Peter Koch
Sönke Horn
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 EP1692957A1 publication Critical patent/EP1692957A1/fr
Withdrawn legal-status Critical Current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 and a device for processing a strip of filter material of the tobacco-processing industry, wherein the strip is conveyed to a stretching section of a stretching device and / or to an order section of an application device, on which the input side of the stretching section and / or theforementionedsddle a first Roll arrangement with at least two rollers and the output side of the stretching section and / or theforementionedsumble a second roller assembly are provided with at least two rollers.
  • a strip of filter material in particular filter tow, of interconnected fibers, eg of cellulose acetate, continuously withdrawn from a supply, eg from a bale, spread, stretched and sprayed with a plasticizer, such as triacetin, laterally shirred, fed to a blown air nozzle and then fed to a hopper, from which the processed and compacted filter strip is fed to a filter rod machine.
  • a filter rod machine the strip formed into a filter strand is enveloped continuously with a wrapping material strip, with further compression, after which filter rods are cut off from the wrapped filter strand.
  • Proven processing equipment of the type described above are built and sold under the name AF 2, AF 3 and AF 4 by the patent applicant.
  • Proven filter rod machines of the type described are built and sold under the name KDF 2, KDF 3 and KDF 4 by the patent applicant.
  • a filter tow is spread out, processed and summarized into a filter tow line.
  • the produced filter tow strand is guided in a plane of movement of the web, from which it is deflected sideways before reaching a further processing machine and into which it is returned again after the deflection. Due to the deflection of the formed filter tow strand, Towsplit in the filter tow strand is avoided.
  • EP-B-0 654 224 describes an arrangement for processing a strip of filter material for the tobacco processing industry. Another generic device is disclosed in EP-A-1 106 087.
  • This object is achieved by a method for processing a strip of filter material of the tobacco-processing industry, wherein the strip is conveyed to a stretching section of a stretching device and / or to an order section of an application device, on which the input side of the stretching section and / or the order path, a first roller assembly with at least two rollers and on the output side of the stretching section and / or thesecond roller assembly are provided with at least two rollers, which is further developed by the strip on at least two rollers of the first and / or the second roller assembly each with an at least partial wrap of the Rolling adjacent is promoted.
  • the invention is based on the idea that a filter tow with a large wrap of at least two rolls is conveyed by the rolls of a stretching device or an applicator.
  • both rolls of a pair of rolls are now surrounded or partially enclosed by the filter tow strips, so that it is no longer necessary to bring the two rolls of a pair of rolls into touching contact.
  • the filter tow strip is guided in an S-shaped or loop-shaped fashion around the rollers of a pair of rollers or a roller arrangement. The spacing of the rolls creates a gap between the rolls which stops the rolls from contacting each other and thus prevents abrasion of the surface of the rolls.
  • the loop-shaped guidance or winding of the filter tow strip on the rollers can be effected both in a stretching section of a stretching device and in an application path an applicator in a filter tow preparation machine on the input side and / or output side done. Overall, the surface abrasion of a rubberized surface of a roller is reduced by the loop-shaped leadership of the filter tow.
  • a wrap around a roll is understood to mean the curved section of a roll in which the conveyed strip of material is transported in an abutting manner on the round surface of the rolls.
  • a plurality of rollers are each surrounded by the strip of material, so that the rollers of a roller assembly or a pair of rollers are looped as a whole or as a whole unit.
  • the wrap angle of the strip about a roller may also be less than 45 ° or 30 °, wherein in cooperation with a preceding or following roller or with other rollers, the total wrap angle of the roller assembly is substantially equal to or greater than 180 °.
  • at least one roller of the roller assembly is looped approximately or at least 180 °.
  • the strip of material is deflected in a plurality of curved curves since the strip of material partially wraps around each roll, i. with a curvature, is applied.
  • At least two rolls of the first and / or the second roll arrangement are driven at the same predetermined rotational speed or rotational speed or peripheral speed.
  • At least two rolls of the first and / or the second roll arrangement each driven at different speeds or rotational speeds or peripheral speeds, so that, for example, on the input side of a stretch stretching a stretching of the stretched filter material strip in the stretching section.
  • the at least two rollers of the first and / or the second roller arrangement are driven in touching contact.
  • At least two rollers of the first and / or the second roller arrangement are driven in non-contacting contact, whereby no abrasion or wear of the roller surface takes place.
  • the conveyed and processed filter tow is smoother for the preparation, if at least one roller of the first and / or the second roller assembly is heated. Heated rolls reduce the destruction of the fibers of a strip of filter material. Within the scope of the disclosure, it is also conceivable that heating of the rolls is carried out on existing roll devices according to the prior art. The heating of the rolls is not limited in the present case to the subject matter of the present invention.
  • a dedusting in particular of at least one roller, is carried out on the first and / or the second roller arrangement, so that particles disturbing the preparation process are removed from the area of the treatment process. This further improves the quality of applying triacetin to the filter tow.
  • At least one roller of the first and / or the second roller arrangement air, in particular compressed air, is blown. Accordingly, the air emerging from a roller is removed by means of a suction device on the roller assembly. Due to the escaping air from the roller, adhering particles on the roll surface are reliably removed from the surface.
  • the rollers can thereby be adjusted so that predetermined tension ratios for the filter tow strip can be set at a stretching device or an application device.
  • the object is achieved by a device for processing a strip of filter material of the tobacco processing Industry, with a stretching line of a stretching device and / or a job path of an application device on which the input side of the stretching section and / or theandsffle a first roller assembly with at least two rollers and the output side of the stretching section and / or theforementionedsddle a second roller assembly are provided with at least two rollers , which is developed by the fact that the strip is applied to at least two rollers of the first and / or the second roller assembly each with an at least partial wrapping of the rollers.
  • Reliable conveying of the filter tow strip is achieved if the rotational speeds or rotational speeds or circumferential speeds of at least two rollers of the first and / or the second roller arrangement coincide.
  • pre-stretching of the conveyed filter tow can be accomplished when the speeds or circumferential speeds of at least two rolls of the first and / or second roll assemblies are different.
  • rollers of the first and / or the second roller arrangement are arranged in touching contact or non-contacting contact.
  • Favorable conditions for conveying the filter tow strip can furthermore be set if at least two rollers of the first and / or the second roller arrangement are different in diameter.
  • a heater for at least one roller of the first and / or the second roller assembly is provided.
  • a dedusting device is provided for at least one roller of the first and / or the second roller arrangement.
  • a dedusting device can be achieved, for example, by arranging a brush on a roller or by applying ultrasound to the roller.
  • a dedusting of the roller is achieved when at least one roller of the first and / or the second roller assembly has bores for compressed air or suction air.
  • the at least one roller of the first and / or the second roller assembly is acted upon by compressed air or with suction air.
  • the distance between at least two rollers of the first and / or the second roller arrangement is variable and / or adaptable.
  • At least one roller of the first and / or the second roller arrangement is profiled or unprofiled.
  • At least one roller or a plurality, preferably all, rollers of the first and / or the second roller arrangement consist of steel.
  • the first and / or the second roller arrangement each have more than two rollers, preferably three or four rollers.
  • the object is achieved by a machine of the tobacco-processing industry, in particular filter material processing apparatus and / or filter rod machine, which is configured with a device according to the invention described above. To avoid repetition, reference is expressly made to the above statements.
  • the feed line 9 is used to feed a strip section to an inlet device of a filter rod machine 11, shown schematically, for example, from the known in the tobacco processing industry type KDF 2, KDF 3 or KDF 4 of the applicant.
  • the withdrawal line 3 in which the withdrawn from a bale not shown here filter material strip 2 is conveyed, has a spreader nozzle 16, which is acted upon with compressed air.
  • the compressed air is used to spread the extracted filter fabric in this section.
  • a controllable spreading gland is e.g. in US-A-4,259,769.
  • rollers 22, 23 are towed from the tow strip, i. they run empty with more or less resistance. If necessary, they can be powered by a motor. They can also be pressed in a manner known per se with controllable force against each other.
  • the filter tow 2 is vorgereckt. Further, in the Vorreckrate 4 a spreader 17 is arranged to spread the funded filter tow 2 before entering the stretching section 6.
  • the stretching line 6 connects, in the the filter tow 2 is conveyed vertically or with a vertical component from top to bottom.
  • the stretching section 6 is another pair of rollers 39 of motor-driven rollers 41, 42 whose peripheral speeds are slightly greater than the peripheral speeds of the rollers 26, 27, so that the elastic filter tow is defined stretched.
  • the roller pairs 24 and 39 thus form the actual stretching device.
  • rollers 26 and 41 have a rigid, grooved surface, each contacting a compliant surface of the rollers 27 and 42, respectively.
  • Such roll configurations are known from applicant's aforementioned filter trough processors AF2, AF3 and AF4 and are described, for example, in US-A-3,317,965 and US-A-3,255,506.
  • roller pair 39 is followed in the order path 7 another pair of rollers 43, the peripheral speeds are lower than those of the rollers 41, 42, so that the filter tow 2 slightly relaxes in its promotion in the order path 7.
  • the roller pair 43 again has a roller 44 with a rigid, grooved surface, which is in contact with the resilient surface of the rollers 46.
  • the roller pairs 39 and 43 thus limit the application path 7, which in the present case is arranged approximately horizontally, in which an application device in the form of a spraying device 18 is arranged.
  • the spraying device 18 may be formed as described in US-A-4,313,974 and sprays the transported filter tow 2 from one or both sides with fine droplets of a solvent for the filter tow material, eg triacetin.
  • a solvent for the filter tow material eg triacetin.
  • triacetin can be sprayed onto the filter tow by means of nozzles as described in EP-A-1 106 087.
  • a gathering section 8 in which the filter tow strip 2 is conveyed with a predominantly vertical component from a pair of rollers 51 with motor-driven rollers 52, 53 from bottom to top.
  • the roller 52 again has a rigid, grooved surface, the contact of the roller a resilient surface.
  • the filter tow 2 is fed after the pair of rollers 43 in the gathering section 8 of a gathering device for reducing the width of the filter tow. After the Raffsize 8, the filter tow 2 is fed via the pair of rollers 51 following an inlet of a filter rod machine.
  • EP-B-0 654 224 For further details, reference is made to EP-B-0 654 224.
  • the gathering line 8 can contain one or more successive gathering devices (not shown here) in the form of wire loops whose diameter decreases in the conveying direction of the filter tow strip and thus reduces the width of the filter tow strip. Due to the lateral tightening of the filter tow strip, a filter tow strand arises whose cross section has already approximated the cross section of a filter strand to be produced.
  • FIG. 2a, 2b different views of a stretching device according to the invention are shown, which replaces the existing of the pairs of rollers 24 and 39 stretching device in Fig. 1.
  • roller assembly 124 is provided with the rollers 125.1 and 125.2.
  • the filter tow 2 is S-shaped or guided in the form of loops around the rollers 125.1 and 125.2 on the input side, wherein the rollers 125.1 and 125.2 do not touch. Due to the loop-shaped wrapping or wrapping of the rollers 125.1 and 125.2, the direction of rotation of the rollers 125.1 and 125.2 is different from the direction of rotation of the rollers 26, 27 shown in FIG. 1. In addition, the rollers 125.1 and 125.2 are offset from each other in their vertical height , wherein the distance between the rollers 125.1 and 125.2 is adjustable.
  • the rollers 125.1 and 125.2 have the same diameter. In the context of the invention, it is conceivable that the rollers 125.1. and 125.2 or the other rolls of the further roll arrangements have different diameters. Moreover, it is also possible in developments that the rollers of the respective roller assemblies are driven at different speeds, so that different peripheral speeds of the rollers are formed.
  • the output side rollers 140.1. and 140.2 of the roller assembly 139 and the stretching section 6 are arranged offset in height and with respect to their distance from each other.
  • the filter tow is also looped around the rollers 140.1 and 140.2, with the rollers 140.1 and 140.2 not touching each other.
  • the roller 125.1 has suction bores 126, so that a negative pressure can be applied inside the roller 125.1, whereby the applied suction air improves the adhesion of the filter tow 2 on the roller 125.1 and loose particles ab vitamint.
  • the roller 140.1 has a heating surface 141 on the circumferential surface, so that the conveyed filter tow 2 is heated and, as a result of the heating, becomes more flexible in its properties. This improves the application of triacetin to the filter tow.
  • FIGS. 3 a, 3 b show further embodiments of the input-side roller arrangement 124 and the output-side roller arrangement 139 of the stretching section 6.
  • the roller assembly 124 and the roller assembly 139 each have three rollers 125.1 to 125.3 and 149.1 to 140.3, which are looped looped by the filter tow 2.
  • rollers 125.1 to 125.3 are each driven at different rotational speeds, an advance of the filter tow strip is already achieved between the rollers 125.1 and 125.2 and the rollers 125.2 and 125.3 before the filter tow strip enters the stretching section.
  • the rollers 140.1 to 140.3 are loop-shaped and offset from each other with a looping of the filter tow strip.
  • Fig. 4 is a view of the stretching section 6 and thesecondsumble 7 is shown, wherein the roller assembly 124 and 139 each consist of four rollers.
  • the roller assembly 124 has the Rolls 125.1 to 125.4, of which two rolls each have the same direction of rotation.
  • the rollers 140.1 to 140.4 of the output side roller assembly 139 are also looped like the rollers 125.1 to 125.4 of the input side roller assembly 124 of the filter tow 2.
  • the output side roller arrangement 139 of the stretching section 6 simultaneously forms the input side roller arrangement of the application path 7.
  • a further roller arrangement 143 is arranged, which occurs instead of the roller pair 43 shown in FIG.
  • the roller assembly 143 has two rollers 144.1 and 144.2 in this embodiment.
  • the roller assembly 143 may additionally comprise further rollers, which are wrapped on the output side in the sense of the invention by the filter tow.
  • the rollers 144.1, 144.2 of the roller arrangement 143 on the output side of the application path 7 are likewise provided, like the rollers of the roller arrangements 124 and 139, with a loop-shaped loop or wrap of the filter tow strip.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP06000357A 2005-02-16 2006-01-10 Traitement d'une bande de matière filtrante pour l'industrie du tabac Withdrawn EP1692957A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005007214A DE102005007214A1 (de) 2005-02-16 2005-02-16 Aufbereitung eines Streifens aus Filtermaterial der Tabak verarbeitenden Industrie

Publications (1)

Publication Number Publication Date
EP1692957A1 true EP1692957A1 (fr) 2006-08-23

Family

ID=36426313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06000357A Withdrawn EP1692957A1 (fr) 2005-02-16 2006-01-10 Traitement d'une bande de matière filtrante pour l'industrie du tabac

Country Status (5)

Country Link
US (1) US20060194683A1 (fr)
EP (1) EP1692957A1 (fr)
JP (1) JP2006223305A (fr)
CN (1) CN1820668A (fr)
DE (1) DE102005007214A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2022351A3 (fr) * 2007-08-07 2010-09-01 G.D S.p.A. Appareil de traitement d'au moins une bande de matériau à filtres dans l'industrie du tabac

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102139178B (zh) * 2010-12-31 2014-02-12 杭州兴源过滤科技股份有限公司 压滤机专用纳米滤布制作系统及制作方法
DE102012202763A1 (de) * 2012-02-23 2013-08-29 Hauni Maschinenbau Ag Objekteinleger und Verfahren zum Betrieb eines Objekteinlegers der Tabak verarbeitenden Industrie
ES2877644T3 (es) * 2017-03-27 2021-11-17 Philip Morris Products Sa Aparato y método para formar barras de filtro

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255506A (en) * 1963-02-20 1966-06-14 Eastman Kodak Co Tow treatment
US3317965A (en) * 1964-09-11 1967-05-09 Osaka Kiko Kabushiki Kaisha Tow filament separating apparatus
US3354013A (en) * 1963-11-26 1967-11-21 Eastman Kodak Co Method and apparatus for applying particulate additives to continuous filament tow
US3874030A (en) * 1973-03-08 1975-04-01 Philip Morris Inc Apparatus for spreading tows of fibrous materials
US3930935A (en) * 1971-05-13 1976-01-06 Celfil Company Establishment Apparatus for making webs of filtering material for tobacco product filters, particularly cigarette filters
DE4240089A1 (de) * 1992-11-28 1994-06-01 Hauni Werke Koerber & Co Kg Anordnung zum Bilden eines Stranges aus Filtertow
EP1325683A2 (fr) * 2002-01-07 2003-07-09 Hauni Maschinenbau AG Procédé et dispositif pour la production d'un courant de fibres dans l'industrie du tabac

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2814605A1 (de) * 1978-04-05 1979-10-18 Hauni Werke Koerber & Co Kg Verfahren und vorrichtung zum ausbreiten einer bewegten luftdurchlaessigen gewebebahn
DE2814681A1 (de) * 1978-04-05 1979-10-18 Hauni Werke Koerber & Co Kg Verfahren und vorrichtung zum auftragen von weichmacher auf eine bewegte gewebebahn

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255506A (en) * 1963-02-20 1966-06-14 Eastman Kodak Co Tow treatment
US3354013A (en) * 1963-11-26 1967-11-21 Eastman Kodak Co Method and apparatus for applying particulate additives to continuous filament tow
US3317965A (en) * 1964-09-11 1967-05-09 Osaka Kiko Kabushiki Kaisha Tow filament separating apparatus
US3930935A (en) * 1971-05-13 1976-01-06 Celfil Company Establishment Apparatus for making webs of filtering material for tobacco product filters, particularly cigarette filters
US3874030A (en) * 1973-03-08 1975-04-01 Philip Morris Inc Apparatus for spreading tows of fibrous materials
DE4240089A1 (de) * 1992-11-28 1994-06-01 Hauni Werke Koerber & Co Kg Anordnung zum Bilden eines Stranges aus Filtertow
EP1325683A2 (fr) * 2002-01-07 2003-07-09 Hauni Maschinenbau AG Procédé et dispositif pour la production d'un courant de fibres dans l'industrie du tabac

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2022351A3 (fr) * 2007-08-07 2010-09-01 G.D S.p.A. Appareil de traitement d'au moins une bande de matériau à filtres dans l'industrie du tabac

Also Published As

Publication number Publication date
DE102005007214A1 (de) 2006-08-24
JP2006223305A (ja) 2006-08-31
CN1820668A (zh) 2006-08-23
US20060194683A1 (en) 2006-08-31

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