EP1020125A2 - Appareil pour former un flux élargi de fibres de tabac - Google Patents

Appareil pour former un flux élargi de fibres de tabac Download PDF

Info

Publication number
EP1020125A2
EP1020125A2 EP99125292A EP99125292A EP1020125A2 EP 1020125 A2 EP1020125 A2 EP 1020125A2 EP 99125292 A EP99125292 A EP 99125292A EP 99125292 A EP99125292 A EP 99125292A EP 1020125 A2 EP1020125 A2 EP 1020125A2
Authority
EP
European Patent Office
Prior art keywords
guideway
tobacco
slot nozzles
sliding surface
fiber 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.)
Granted
Application number
EP99125292A
Other languages
German (de)
English (en)
Other versions
EP1020125A3 (fr
EP1020125B1 (fr
Inventor
Uwe Heitmann
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 EP1020125A2 publication Critical patent/EP1020125A2/fr
Publication of EP1020125A3 publication Critical patent/EP1020125A3/fr
Application granted granted Critical
Publication of EP1020125B1 publication Critical patent/EP1020125B1/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

Definitions

  • the invention relates to a device for generating a spread fiber stream from tobacco fibers along one with in the transport direction of the fiber stream acting concave curved guideway.
  • a guideway of the type mentioned is part of a so-called Distributor of a cigarette rod machine, and forms using essentially blowing air directed in parallel is a so-called fluid bed, with the help of tobacco fibers in the form of a loosened up loosely moving along the guideway and spread tobacco flow to a tobacco fiber to a tobacco rod constructing suction strand conveyor are transferred.
  • the invention is based on the task, the effectiveness or the delivery rate of the fluidized bed with regard to the energy expenditure for the blown air supplied optimize.
  • the goal is to consider the guideway that forms the fluidized bed to improve production, handling and interchangeability or installation and removal.
  • the generatrix of the guideway interrupted by the blast air openings designed as slot nozzles is based on a uniform envelope curve.
  • the slot nozzles opening into the sliding surface of the guideway extend continuously over the width of the guideway.
  • a close-fitting wall flow is achieved according to an advantageous embodiment in that the downstream wall of the slot nozzle merges into the concave sliding surface of the guideway in a constant convex curvature with respect to the direction of conveyance of the fiber stream.
  • a further improvement and improvement of the fluid bed conveyance consists in the fact that the sliding surface of the guideway is interrupted by several slot nozzles which follow one another in the conveying direction of the fiber stream.
  • the slot nozzles are expediently connected to a common pressure chamber.
  • the guideway consist of individual segments is composed, the respective adjacent boundary surfaces of the nozzle walls of the slot nozzles.
  • the guideway can be flexible designed and assembled or replaced in some areas due to wear always with an optimal relative alignment of sliding surface walls and slot nozzles is guaranteed.
  • the advantage achieved by the invention consists in the stepless transition at the sections of the guideway interrupted by a slot nozzle, so that the tobacco meets the blown air directly at the outlet of the slot nozzle, that is to say at a point where the blown air still has its maximum flow velocity and can accelerate the tobacco fibers accordingly. So that the blown air supply can then be operated with a lower air pressure or with a correspondingly reduced fan output, which improves the effectiveness and economy of energy generation and use. Furthermore, there is an economic advantage due to the use of individual segments assembled to form the guideway, the simple outer contour of which makes them virtually predestined for production using the economical extrusion process.
  • FIG. 1 shows a section through the part of a distributor of a cigarette rod machine, which is necessary for understanding the invention.
  • the upstream Tobacco supply to a supply and the removal of the tobacco from the tobacco supply, for example, with a steep conveyor are widely known and do not need any here Description. Reference is made, for example, to US Pat. No. 4,185,644.
  • FIG. 1 shows a storage chute 1 with a tobacco supply 1 a and a removal device 2, which consists of a removal roller 3 and a beater roller 4.
  • the shower 6 of tobacco fibers removed from the storage chute by the removal device 2 enters a feed chute which narrows in the shape of a funnel and in the form of a channel 7, in which an accelerating means 8, which forms a presupering device, in the form of blowing nozzles 11 arranged in a pressure chamber 9, a visual air flow transverse to the conveying direction of the Tobacco shower 6 blows.
  • the visible air flow separates the light tobacco fibers 12 from the heavier tobacco fibers 13 (tobacco ribs) and transports them transversely in the direction of the arrow 14.
  • Some light tobacco fibers 12a sink down with the heavier tobacco ribs 13. You get through a rotary valve 16 into a viewing shaft 17, in which the heavier tobacco ribs 13 sink further down and are discharged, while the lighter tobacco fibers 12a rise due to the injector effect of a blast air jet from a nozzle 18 forming a re-sifter and into the stream of lighter fibers 12 are returned.
  • the tobacco fibers in the example shown are transferred to a guideway 21 in the form of a sliding surface 21a, on which they are built up to a tobacco stream 22 of loosened and spreading tobacco fibers, whereby blowing air and tobacco particles form a close to the sliding surface Form a wall flow along the guide track 21.
  • a guideway 21 in the form of a sliding surface 21a, on which they are built up to a tobacco stream 22 of loosened and spreading tobacco fibers, whereby blowing air and tobacco particles form a close to the sliding surface Form a wall flow along the guide track 21.
  • the loosened and spread tobacco stream 22 arrives in a strand build-up zone 24 to a suction strand conveyor 26, to which a suction draft for forming and holding a tobacco strand is applied from the rear by the suction effect of a vacuum chamber 27. Excess blown air escapes through a sieve 28 into a relaxation space 29.
  • the suction line conveyor 26 runs in a tobacco channel 31 which is laterally delimited by two channel cheeks 32 and 32a.
  • the end section of the sliding surface 21a of the guide track 21 is aligned with one of the channel cheeks 32, so that a seamless, smooth transition of the guide track 21 to the tobacco channel 31 is ensured.
  • the end section of the guideway 21 is designed as a guide body 34 which can be swiveled about a pivot axis 33 in order to ensure better accessibility of the device in the event of faults.
  • the guideway 21 formed in a conventional manner according to FIG. 2 consists of the sliding surface 21a in the conveying direction (arrow 36) of the tobacco flow in stages offset sliding plates or sliding bodies 37, at their respective stages the blowing air nozzles 23 open into the guideway 21.
  • the generatrix of the guideway 21 is based on a uniform envelope curve, so that individual segments 38 of the guideway 21 connect to one another in a stepless manner.
  • Blown air nozzles 23 are formed on the respective abutting edges of the individual segments 38 and are formed as continuous slot nozzles perpendicular to the plane of the drawing that an unbroken continuous wall flow of blown air and tobacco is formed on the sliding surface 21.
  • Tobacco flow and blown air meet directly in the area of the outlet opening of the slot nozzles, so that the blown air hits the tobacco stream at its maximum outlet speed at each slot nozzle.
  • the individual segments 38 are produced as extruded profiles, the adjacent boundary surfaces of which always guarantee optimal flow conditions of the slot nozzles.

Landscapes

  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP99125292A 1999-01-14 1999-12-18 Appareil pour former un flux élargi de fibres de tabac Expired - Lifetime EP1020125B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19901087A DE19901087A1 (de) 1999-01-14 1999-01-14 Vorrichtung zum Erzeugen eines ausgebreiteten Faserstromes aus Tabakfasern
DE19901087 1999-01-14

Publications (3)

Publication Number Publication Date
EP1020125A2 true EP1020125A2 (fr) 2000-07-19
EP1020125A3 EP1020125A3 (fr) 2005-04-13
EP1020125B1 EP1020125B1 (fr) 2006-08-02

Family

ID=7894178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99125292A Expired - Lifetime EP1020125B1 (fr) 1999-01-14 1999-12-18 Appareil pour former un flux élargi de fibres de tabac

Country Status (8)

Country Link
US (1) US6701933B2 (fr)
EP (1) EP1020125B1 (fr)
JP (1) JP4287968B2 (fr)
CN (1) CN1144538C (fr)
AT (1) ATE334605T1 (fr)
DE (2) DE19901087A1 (fr)
ES (1) ES2267221T3 (fr)
PL (1) PL192182B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174046A2 (fr) * 2000-07-20 2002-01-23 Hauni Maschinenbau AG Procédé et dispositif pour séparer des fibres de tabac

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2499853C (fr) * 2004-03-15 2012-11-13 Universal Leaf Tobacco Company, Inc. Appareil et methode de balayage et de tri de feuilles de tabac
US8281931B2 (en) * 2009-09-18 2012-10-09 Key Technology, Inc. Apparatus and method for post-threshing inspection and sorting of tobacco lamina

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306358A (en) * 1979-08-15 1981-12-22 Amf Incorporated Air drying apparatus
US4564027A (en) * 1982-12-02 1986-01-14 Hauni-Werke Korber & Co. Kg Apparatus for building a continuous tobacco stream
US5148816A (en) * 1989-11-25 1992-09-22 Korber Ag Method of and apparatus for making a tobacco stream with a core containing tobacco ribs
EP0727157A1 (fr) * 1995-02-16 1996-08-21 Japan Tobacco Inc. Appareil d'alimentation en tabac coupé pour une machine de fabrication de cigarettes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2729730C2 (de) 1976-09-24 1986-11-13 Hauni-Werke Körber & Co KG, 2050 Hamburg Verteiler einer Strangmaschine zum Herstellen von Rauchartikeln
DE4113465A1 (de) * 1991-04-25 1992-10-29 Heidelberger Druckmasch Ag Vorrichtung zum schwebenden fuehren und/oder foerdern von bahnen oder bogen
DE4336453A1 (de) * 1993-10-26 1995-04-27 Hauni Werke Koerber & Co Kg Verfahren und Vorrichtung zum Vereinzeln von Tabakfasern
JPH1086329A (ja) * 1996-09-03 1998-04-07 Heidelberger Druckmas Ag 枚葉紙印刷機における接触のない枚葉紙案内のための装置
DE19913422A1 (de) * 1999-03-25 2000-09-28 Hauni Maschinenbau Ag Einrichtung zum Überführen von pulver- oder granulatförmige Partikel enthaltenden Filterstäben

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306358A (en) * 1979-08-15 1981-12-22 Amf Incorporated Air drying apparatus
US4564027A (en) * 1982-12-02 1986-01-14 Hauni-Werke Korber & Co. Kg Apparatus for building a continuous tobacco stream
US5148816A (en) * 1989-11-25 1992-09-22 Korber Ag Method of and apparatus for making a tobacco stream with a core containing tobacco ribs
EP0727157A1 (fr) * 1995-02-16 1996-08-21 Japan Tobacco Inc. Appareil d'alimentation en tabac coupé pour une machine de fabrication de cigarettes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1174046A2 (fr) * 2000-07-20 2002-01-23 Hauni Maschinenbau AG Procédé et dispositif pour séparer des fibres de tabac
EP1174046A3 (fr) * 2000-07-20 2003-12-03 Hauni Maschinenbau AG Procédé et dispositif pour séparer des fibres de tabac

Also Published As

Publication number Publication date
EP1020125A3 (fr) 2005-04-13
PL192182B1 (pl) 2006-09-29
US6701933B2 (en) 2004-03-09
PL337684A1 (en) 2000-07-17
ATE334605T1 (de) 2006-08-15
ES2267221T3 (es) 2007-03-01
JP4287968B2 (ja) 2009-07-01
US20020162561A1 (en) 2002-11-07
EP1020125B1 (fr) 2006-08-02
DE19901087A1 (de) 2000-07-20
CN1260150A (zh) 2000-07-19
JP2000210068A (ja) 2000-08-02
DE59913731D1 (de) 2006-09-14
CN1144538C (zh) 2004-04-07

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