EP0846424A1 - Dispositif de pré-égalisation d'un courant de tabac - Google Patents

Dispositif de pré-égalisation d'un courant de tabac Download PDF

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Publication number
EP0846424A1
EP0846424A1 EP97121148A EP97121148A EP0846424A1 EP 0846424 A1 EP0846424 A1 EP 0846424A1 EP 97121148 A EP97121148 A EP 97121148A EP 97121148 A EP97121148 A EP 97121148A EP 0846424 A1 EP0846424 A1 EP 0846424A1
Authority
EP
European Patent Office
Prior art keywords
tobacco
knife
circular knife
channel
tobacco rod
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
EP97121148A
Other languages
German (de)
English (en)
Other versions
EP0846424B1 (fr
Inventor
David Vuilleumier
Jean-Jacques Beguin
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.)
Philip Morris Products SA
Original Assignee
Fabriques de Tabac Reunies SA
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 Fabriques de Tabac Reunies SA filed Critical Fabriques de Tabac Reunies SA
Publication of EP0846424A1 publication Critical patent/EP0846424A1/fr
Application granted granted Critical
Publication of EP0846424B1 publication Critical patent/EP0846424B1/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
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/18—Forming the rod
    • A24C5/1842—Trimming devices

Definitions

  • the invention relates to a device for forming a tobacco rod for the manufacture of cigarettes.
  • the device has a suction line conveyor, which by means of an air-permeable Band of tobacco fibers along a tobacco channel promotes, as well as a pre-leveling device that increases the height of the tobacco strand promoted by making a Part of the tobacco rod decreases, a device for compacting of the tobacco rod at periodic intervals and one Leveling device, the height of the tobacco rod evenly to a predetermined level by adding tobacco is removed from the tobacco rod.
  • the device is part of a cigarette rod machine.
  • Cigarette rod machines become tobacco fibers loose in shape of a tobacco viewer by negative pressure from below to the surrounding, air-permeable belt of a suction line conveyor sucked in.
  • the tobacco rod is formed on a filler strip filed and wrapped in this.
  • the way Formed endless cigarette rod is then cut into individual Cut cigarettes.
  • To achieve a uniform Tobacco density within the cigarettes is necessary the suction line conveyor a cigarette train of possible to form a uniform height.
  • Have cigarettes on the front The end of a slightly higher tobacco density to prevent the Avoid tobacco fibers.
  • the periodically tobacco rod formed on the line conveyor e.g. by compresses a rotating cam. Before compacting takes place a pre-equalization of the height of the tobacco rod takes place and after compression, the final equalization of the Tobacco strand instead.
  • paddle wheels are known that are at an angle to Direction of the tobacco rod are employed and protruding Remove tobacco quantities from the strand surface to the side (EP-A-0 645 098), as well as a cylindrical, rotating disc, whose plane of rotation is perpendicular to the direction of the height irregularities of the tobacco rod is (EP-A-0 465 414).
  • pre-leveling device succeeds Excess tobacco from the tobacco rod relatively gently remove, so that he the production process without loss of quality can be fed again.
  • the axis of the tubular Body points towards the tobacco rod and is down inclined.
  • the effective cutting edge of the pipe knife is directed across the tobacco rod.
  • the invention has for its object a device for forming a tobacco rod for the manufacture of cigarettes to create means of tobacco blends that are special long tobacco fibers, tobacco fibers with a larger cutting width or contain a high proportion of oriental tobacco, Uniform pack density cigarettes with increased pack density can be made at the front end of the cigarette.
  • the Pre-leveling device has a rotating knife that is located immediately below the tobacco channel.
  • the rotating knife is preferably a rotating circular knife, which is arranged so that its edge area with overlapped the tobacco canal.
  • the opposite of the direction of funding pointing edge of the overlap area of the circular knife moves itself in the direction of movement of the strand and under one Angles of 30 to 50 ° at an angle to the tobacco rod.
  • By the arrangement of the cutting area of the circular knife at an angle to The tobacco rod is also used with a circular knife smoothly ground cutting edge the protruding tobacco fibers separated cleanly.
  • the rotating knife can also be designed as a tubular knife be, the axis of the pipe knife in the direction of movement of the tobacco rod is slightly inclined downwards so that only the cutting edge engages the tobacco fibers, and from above considers an angle of 60 to 40 ° with the longitudinal direction of the tobacco rod forms.
  • the cutting edge By arranging the cutting edge at an angle to the tobacco rod prevents the tobacco fibers from being cut in places by the knife be dammed up in the tobacco canal. If the cutting edge of the circular knife or the pipe knife is wavy is, the cutting edge can also cross, i.e. at 90 ° to Be arranged in the longitudinal direction of the tobacco rod.
  • the cutting edge of the rotating knife preferably has one Speed of about 5 m / s relative to the tobacco rod. This corresponds to a speed that is about 30% higher than that usual speed of the tobacco rod e.g. 560 m / min is.
  • the circular knife has a diameter of e.g. 90 mm and can at a speed of the tobacco rod of 560 m / min in the area overlapping with the tobacco channel of about 850 m / min. It cuts ribs and longer fibers, so that there is no risk that with the long fibers or tobacco ribs other attached tobacco fibers torn out of deeper layers of the tobacco rod will.
  • the circular knife is preferably at an angle ⁇ of up to Tilted 30 ° to the direction of movement of the tobacco rod, so that the front area of the circular knife one has a greater distance from the underside of the tobacco rod.
  • the circular knife is preferably seated on a rotationally symmetrical one or cylindrical body with something smaller Diameter than the circular knife.
  • a rotationally symmetrical or cylindrical body get the Tobacco fibers that separate the circular knife from the tobacco rod, a movement impulse that they get from the suction area of the suction line conveyor brings.
  • This movement impulse can still be be improved that on the circumference of the rotationally symmetrical Body axially extending grooves are, wherein the peripheral surface of the body is still conical downwards can rejuvenate.
  • Half the cone angle that is the angle ⁇ between conical surface and axial direction, is larger than the angle ⁇ by which the circular knife is tilted.
  • the rear edge of the rotating body always points slightly in the direction of movement of the tobacco rod, whereby the separated Tobacco fibers receive a forward-facing impulse component.
  • the pre-leveling device can also have two overlapping ones Have circular knives that shear off the protruding tobacco fibers.
  • the device according to the invention for forming a tobacco rod for cigarette production can also be trade a double strand machine. For every strand of tobacco is then at least one revolving knife is provided.
  • FIG. 1 shows a device for forming a tobacco rod 24 for cigarette manufacture from the side.
  • the device has a suction line conveyor 10 with an endless porous tape 12, e.g. a perforated tape or one air-permeable fabric tape that is endless and around two pulleys 14 is led around.
  • the belt 12 runs in FIG. 1 seen, clockwise around.
  • the lower run 16 of band 12 forms with side cheeks 18 (Fig. 2) an open at the bottom Tobacco channel 20.
  • the beginning of the tobacco channel 20 is located above a tobacco shaft 22 by means of vacuum, which is above the lower one Trumm 16 of the band 12 abuts, tobacco fibers against the bottom of the lower run 16 are sucked in.
  • the sucked in Fibers form a tobacco rod 24 in the tobacco duct 20 initially a very irregular surface and an uneven one Distribution of tobacco has.
  • the pre-leveling device 26 is in the direction of movement of the tobacco rod 24 after the tobacco shaft 22 arranged and has a cylinder body 28 with an overlying and slightly over the edge of the cylinder body 28 protruding circular knives 30.
  • the cylinder body 28 and the circular knife 30 are about their central axis by means of a Drive motor 32 rotated.
  • the circular knife 30 is small Distance below the side walls 18 of the tobacco channel 20 and laterally offset, so that an edge area of the circular knife 30 covers the tobacco duct 20 from below.
  • the cylinder body 28 overlaps the entire width of the tobacco channel 20 as shown in FIG. 2.
  • the arrangement of the circular knife 30 has the tobacco duct 20 overlapping edge area of the circular knife 30 against the Direction of conveyance of the tobacco rod 24 directed cutting edge 35, which extends obliquely to the longitudinal direction of the tobacco rod 24.
  • the angle is between Cutting edge 35 and longitudinal direction of the tobacco rod 24 somewhat less than 45 °. Projecting downwards under the side cheeks 18 Tobacco 25 is therefore first of all by the circular knife 30 of which is located entirely within the tobacco channel 20 Part of the tobacco rod 24 separated and then through the Sidewall of the cylinder body 28 flung to the side, so that he no longer acts within the tobacco channel 20 Is subject to negative pressure and is not sucked in again.
  • the lower run 16 of belt 12 has a speed of, for example, 560 m / min, and at this speed the tobacco rod 24 is moved on.
  • the circular knife 30 and have the cylinder body 28 at the point of overlap the tobacco duct 20 has an approximately 30% higher speed, namely 850 m / min.
  • a compression device in the form of a Cam finger 34 is provided, which is transversely to a horizontal to Trumm 16 directional axis rotates and with every revolution immersed once in the tobacco channel 20 and there in periodic Intervals compacted the tobacco. These condensed areas later form the cigarette tips and by compression should be prevented that the tobacco fibers on the cigarette holder to solve.
  • the compression device can also be formed according to US-A-5 501 233 and a star wheel be, with certain of the radial elements in the circumferential direction extending short support surfaces formed are that compress the tobacco rod 24 in places.
  • a leveling device 36 provided, including the tobacco rod 24 of the compressed points to a predetermined height.
  • the compression device with the cam finger 24 and the Leveling device 36 can be of any conventional type be and are therefore not described in detail here.
  • the leveling device according to EP-A-0 137 604, Fig. 2, with two overlapping circular knives trained to shear the tobacco fibers.
  • FIG. 1 illustrated embodiment has the leveling device 36 two overlapping circular knives, the protruding one Cut off tobacco fibers.
  • a scraper 33 lies against from below the circular knife. The scraper 33 collects the separated ones Tobacco fibers and directs them down so that they are from the Suction line conveyor 12 can not be sucked again.
  • scraper 33 is preferably made of spring sheet metal and presses against the circular knife with only minimal force Leveling device 36.
  • tobacco 25 removed from the tobacco rod 24 caught on conveyor belts 38, 40 and the tobacco supply fed again.
  • the tobacco rod 24 is then known Wrapped up with a cigarette paper and turned into cigarettes processed.
  • the outside of the Cylinder body 28 have ribs 42. Through the ribs 42 the separated tobacco fibers 25 become even more effective flung forward and to the side.
  • the side wall of the cylinder body can 28 taper downward so that the severed Tobacco fibers are also a downward movement component receive.
  • FIG. 7 shows a particularly preferred embodiment of the invention, in which the axis of rotation of the cylinder body 28 and of the circular knife 30 is inclined forward by an angle ⁇ .
  • the circular knife 30 only comes with the rear part its cutting edge in contact with the tobacco rod 24 and detaches from the tobacco rod 24 during its further movement, so that there is no danger that tobacco fibers only through their adhesion to the surface of the circular knife 30 flung to the side or pushed aside within the tobacco channel 20 will.
  • the separated tobacco fibers are obtained thereby a slightly downward movement component.
  • the angle ⁇ is preferably in the range between 0 and 30 °, can also be larger in individual cases.
  • the angle of inclination ⁇ is smaller than the flank angle ⁇ , so that the rear Edge is slightly forward. This will prevents some of the separated tobacco fibers 25 from get into the suction area of the tobacco shaft 22 at the rear.
  • FIG. 8 shows a plan view of a pre-leveling device with two circular knives 30, 31, the edge region of which is only one Part of the tobacco channel 20 overlaps.
  • the circular knives 30, 31 overlap themselves within the tobacco duct 20 so that they are the Shear off excess tobacco fibers 25.
  • can cylinder body 28 under one or under two circular knives 30, 31 are provided. A good function can also be achieved without a cylinder body.
  • the pre-leveling device has 26 a circular knife 30.
  • a scraper 37 which the separated Catches of tobacco fibers and down from the suction area of the suction line conveyor 10 and onto the conveyor belt 38 directs.
  • the scraper 37 replaces the cylinder body 28. He can basically be used instead of the cylinder body 28 will.
  • the scraper 37 is preferably made of spring plate and presses against the circular knife from below with as little force as possible 30th
  • the circular knife 30 and optionally the additional circular knife 31 can be simple 0.25 mm steel sheet knives and be ground smooth on one or both sides.
  • the knife 30, 31 can also consist of 0.3 to 0.35 mm thick hard metal and again be ground on one or both sides. If only a single circular knife 30 is used, so it can also be wavy.

Landscapes

  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
EP97121148A 1996-12-03 1997-12-02 Dispositif de pré-égalisation d'un courant de tabac Expired - Lifetime EP0846424B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29620975U 1996-12-03
DE29620975U DE29620975U1 (de) 1996-12-03 1996-12-03 Vorrichtung zum Vor-Egalisieren eines Tabakstromes
US08/927,991 US6009879A (en) 1996-12-03 1997-09-12 Tobacco trimming and pre-equalizing device

Publications (2)

Publication Number Publication Date
EP0846424A1 true EP0846424A1 (fr) 1998-06-10
EP0846424B1 EP0846424B1 (fr) 2002-03-27

Family

ID=26059696

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121148A Expired - Lifetime EP0846424B1 (fr) 1996-12-03 1997-12-02 Dispositif de pré-égalisation d'un courant de tabac

Country Status (3)

Country Link
US (1) US6009879A (fr)
EP (1) EP0846424B1 (fr)
DE (1) DE29620975U1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1304456B1 (it) * 1998-07-22 2001-03-19 Gd Spa Macchina confezionatrice di sigarette.
ITBO20030612A1 (it) * 2003-10-20 2005-04-21 Gd Spa Unita' e metodo per la formazione di un baco continuo di
DE102012101024A1 (de) 2012-02-08 2013-08-08 Hauni Maschinenbau Ag Vorrichtung und Verfahren zum Bilden mindestens eines Strangs der Tabak verarbeitenden Industrie sowie Verteilervorrichtung zum Beschicken einer Strangmaschine
EP2853163A1 (fr) 2013-09-27 2015-04-01 Reemtsma Cigarettenfabriken GmbH Dispositif de formation d'une tige de tabac
EP3075266A1 (fr) 2015-04-02 2016-10-05 PT. Gudang Garam Tbk. Procédé de production d'un article générant un aérosol contenant un matériau à base de tabac reconstitué, article générant un aérosol contenant un matériau à base de tabac reconstitué et utilisation d'un article générant un aérosol contenant un matériau à base de tabac reconstitué

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1024941A (en) 1961-09-14 1966-04-06 Kurt Koerber Improvements in apparatus for producing a continuous tobacco rod or filler
US3413979A (en) 1959-02-02 1968-12-03 Hauni Werke Koerber & Co Kg Continuous cigarette rod-making machine
DE2103513A1 (de) * 1968-02-07 1972-08-17 Hauni Werke Koerber & Co Kg Vorrichtung zum Bilden eines fortlaufenden Tabakstranges
DE2440980A1 (de) * 1974-08-27 1976-03-18 Hauni Werke Koerber & Co Kg Verfahren und vorrichtung zum bilden eines an vorbestimmten stellen verdichteten tabakstranges
GB2072483A (en) * 1980-03-07 1981-10-07 Hauni Werke Koerber & Co Kg Cutting continuous rod into cigarettes with strengthened ends
DE3407893A1 (de) 1983-03-19 1984-09-20 Hauni-Werke Körber & Co KG, 2050 Hamburg Vorrichtung zum egalisieren eines tabakstromes
EP0137604A1 (fr) 1983-08-11 1985-04-17 Philip Morris Incorporated Dispositif d'ébarbage pour tabac
EP0465414A1 (fr) 1990-06-26 1992-01-08 Fabriques De Tabac Reunies S.A. Dispositif de contrôle d'un flux de tabac avant écrêtage
DE4202198A1 (de) 1992-01-28 1993-07-29 Hauni Werke Koerber & Co Kg Vorrichtung zum abnehmen von ueberschuessigem material, insbesondere tabak, von einem materialstrom
EP0645098A1 (fr) 1993-09-29 1995-03-29 Hauni Maschinenbau Aktiengesellschaft Dispositif pour enlever le tabac excédentaire d'un boudin de tabac
US5501233A (en) 1993-06-16 1996-03-26 Philip Morris Incorporated Apparatus for varying tobacco rod density

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3504679A (en) * 1960-06-08 1970-04-07 Industrial Nucleonics Corp Control system for a cigarettemaking machine
DE2800748A1 (de) * 1978-01-09 1979-07-12 Hauni Werke Koerber & Co Kg Verfahren und vorrichtung zum bilden eines stranges aus fasern aus tabak oder aus einem anderen rauchfaehigen material
IT1188903B (it) * 1980-02-11 1988-01-28 Gd Spa Dispositivo rasatore di un cordone di tabacco in una macchina confezionatrice di sigarette
DE3508498A1 (de) * 1985-03-09 1986-09-11 Hauni-Werke Körber & Co KG, 2050 Hamburg Verfahren und vorrichtung zum herstellen eines faserstranges der tabakverarbeitenden industrie
IT1188441B (it) * 1985-03-19 1988-01-14 Hauni Werke Koerber & Co Kg Dispositivo per formare un filone di fibre fumabili,come tabacco
EP0354874B1 (fr) * 1988-08-10 1994-11-30 Fabriques De Tabac Reunies S.A. Dispositif d'écrêtage et de compression du tabac
DE69706362T2 (de) * 1996-05-29 2002-05-29 Japan Tobacco Inc Egalisiereinrichtung für Tabak in einer Zigarettenherstellungsmaschine

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3413979A (en) 1959-02-02 1968-12-03 Hauni Werke Koerber & Co Kg Continuous cigarette rod-making machine
GB1024941A (en) 1961-09-14 1966-04-06 Kurt Koerber Improvements in apparatus for producing a continuous tobacco rod or filler
DE2103513A1 (de) * 1968-02-07 1972-08-17 Hauni Werke Koerber & Co Kg Vorrichtung zum Bilden eines fortlaufenden Tabakstranges
DE2440980A1 (de) * 1974-08-27 1976-03-18 Hauni Werke Koerber & Co Kg Verfahren und vorrichtung zum bilden eines an vorbestimmten stellen verdichteten tabakstranges
GB2072483A (en) * 1980-03-07 1981-10-07 Hauni Werke Koerber & Co Kg Cutting continuous rod into cigarettes with strengthened ends
DE3407893A1 (de) 1983-03-19 1984-09-20 Hauni-Werke Körber & Co KG, 2050 Hamburg Vorrichtung zum egalisieren eines tabakstromes
EP0137604A1 (fr) 1983-08-11 1985-04-17 Philip Morris Incorporated Dispositif d'ébarbage pour tabac
EP0465414A1 (fr) 1990-06-26 1992-01-08 Fabriques De Tabac Reunies S.A. Dispositif de contrôle d'un flux de tabac avant écrêtage
DE4202198A1 (de) 1992-01-28 1993-07-29 Hauni Werke Koerber & Co Kg Vorrichtung zum abnehmen von ueberschuessigem material, insbesondere tabak, von einem materialstrom
US5501233A (en) 1993-06-16 1996-03-26 Philip Morris Incorporated Apparatus for varying tobacco rod density
EP0645098A1 (fr) 1993-09-29 1995-03-29 Hauni Maschinenbau Aktiengesellschaft Dispositif pour enlever le tabac excédentaire d'un boudin de tabac

Also Published As

Publication number Publication date
EP0846424B1 (fr) 2002-03-27
DE29620975U1 (de) 1997-02-13
US6009879A (en) 2000-01-04

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