EP1020125B1 - Vorrichtung zum Erzeugen eines ausgebreiteten Faserstromes aus Tabakfasern - Google Patents

Vorrichtung zum Erzeugen eines ausgebreiteten Faserstromes aus Tabakfasern Download PDF

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Publication number
EP1020125B1
EP1020125B1 EP99125292A EP99125292A EP1020125B1 EP 1020125 B1 EP1020125 B1 EP 1020125B1 EP 99125292 A EP99125292 A EP 99125292A EP 99125292 A EP99125292 A EP 99125292A EP 1020125 B1 EP1020125 B1 EP 1020125B1
Authority
EP
European Patent Office
Prior art keywords
guideway
tobacco
sliding surface
slotted nozzles
fibre 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
EP99125292A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1020125A3 (de
EP1020125A2 (de
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/de
Publication of EP1020125A3 publication Critical patent/EP1020125A3/de
Application granted granted Critical
Publication of EP1020125B1 publication Critical patent/EP1020125B1/de
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 producing a spreading fiber stream of tobacco fibers along a concave curved guideway provided with blowing air openings acting in the transport direction of the fiber stream.
  • a guideway of the type mentioned is part of a so-called distributor of a cigarette rod machine, and forms using a substantially parallel blast air a so-called fluidized bed, with the help of tobacco fibers in the form of a close to the guideway moved along loosened and expanded tobacco stream to a tobacco fibers to a Tobacco strand constructive suction-strand conveyor be transferred.
  • the invention has for its object to optimize the effectiveness and the flow rate of the fluidized bed in terms of energy consumption for the supplied blowing air.
  • the goal is to improve the fluidized bed forming guideway in terms of manufacturing, handling and interchangeability or installation and removal.
  • the generatrix of the interrupted by the blown air openings designed as a slot nozzle guide track is based on a uniform envelope.
  • the opening into the sliding surface of the guideway slot nozzles extend continuously over the width of the guideway.
  • a close-fitting wall flow is achieved according to an advantageous embodiment in that the - with respect to the conveying direction of the fiber stream - downstream wall of the slot nozzle merges in a continuous convex curvature in the concave sliding surface of the guideway.
  • a further development which increases and completes the fluidized-bed conveyor is that the sliding surface of the guide track is interrupted by a plurality of slot nozzles which follow one another in the conveying direction of the fiber stream. Conveniently, the slot nozzles are in communication with a common pressure chamber.
  • the guide track is composed of individual segments, each forming adjacent boundary surfaces nozzle walls of the slot nozzles.
  • the guideway can be made flexible and assembled or replaced in some areas due to wear, whereby always an optimal relative alignment of Gleit vomandungen and slot nozzles is guaranteed.
  • the advantageous effects of the segmental design of the guideway are further enhanced by a production-specific development that the guideway Segemente are formed as extruded sections, the sliding surface of the guideway limiting wall sections - with respect to the conveying direction of the fiber stream - an upstream and a downstream nozzle wall on two consecutive Form slit nozzles.
  • the advantage achieved by the invention consists in the stepless transition to the interrupted by a slot nozzle sections of the guideway so that the tobacco coincides directly at the outlet of the slot with the blown air, that is, at a point where the blowing air still has their maximum flow velocity and can accelerate the tobacco fibers accordingly.
  • the Blas Kunststoffzuschreib be operated with lower air pressure or with correspondingly reduced fan power, which improves the efficiency and cost-effectiveness of energy production and use of energy.
  • a production-related economic advantage results from the use of individual composite to guideway segments whose simple outer contour predestined them for the production in the economic extrusion process.
  • Figure 1 shows a section through the part of a distributor of a cigarette rod making machine, which is necessary for the understanding of the invention.
  • the upstream tobacco supply to a stock and the removal of the tobacco from the tobacco stock, for example, with a steep conveyor are widely known and require no description here.
  • FIG. 1 shows a storage shaft 1 with a tobacco supply 1a and a removal device 2, which consists of a removal roller 3 and a racket roller 4.
  • the extracted from the removal device 2 from the stowage chute 6 made of tobacco fibers enters a funnel-shaped narrowing Zuglassfallschacht in the form of a channel 7, in which a caution forming accelerator 8 in the form of arranged in a pressure chamber 9 blast nozzles 11 a sortluftstrom transverse to the conveying direction of Tobacco shower 6 blows.
  • the classifying air stream 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 fins 13.
  • the tobacco fibers pass through a rotary valve 16 in a sight tube 17, in which the heavier tobacco ribs 13 continue to sink down and discharged, while the lighter tobacco fibers 12a rise due to the injector effect of a blast air jet from a deterrent forming nozzle 18 upwards and into the flow of lighter fibers 12 are returned.
  • the tobacco fibers are transferred to a guide track 21 in the form of a sliding surface 21a, on which they are built up into a tobacco stream 22 of loosened and spread tobacco fibers, with blowing air and tobacco particles becoming close to the sliding surface 21a of the guideway 21 along moving wall flow form.
  • the loosened and spread tobacco stream 22 passes in a strand construction zone 24 to a suction belt conveyor 26, to which a suction train for forming and holding a tobacco rod is applied by the suction of a vacuum chamber 27 from the back. Excess blown air escapes through a sieve 28 into a relaxation space 29.
  • the Saugstrang considerer 26 runs in a tobacco channel 31 which is bounded laterally by two channel cheeks 32 and 32a.
  • the end portion of the sliding surface 21 a of the guide track 21 is aligned with one of the channel cheeks 32, so that a gap-free, smooth transition of the guide track 21 to the tobacco channel 31 is ensured.
  • the end portion of the guide track 21 is formed as a swiveling about a pivot axis 33 guide body 34 in order to ensure better accessibility of the device in case of disturbances.
  • the sliding surface 21a consists of sliding plates or sliding bodies 37 stepped out in the conveying direction (arrow 36) of the tobacco stream, at the respective stages of which the blowing air nozzles 23 open into the guide track 21.
  • This design has the consequence that the tobacco stream in the region of the respective stage between two sliding plates 37 only at the end of a relatively long free trajectory with the emerging from the Blas Kunststoffdüsen 23 air flow meets after the air flow has already lost about two-thirds of its exit velocity.
  • the flow velocity of the blown air must be increased by a larger fan power, which affects the economy.
  • the generator of the guide track 21 is based on a uniform envelope, so that individual segments 38 of the guide track 21 adjoin one another steplessly.
  • Blas Kunststoffdüsen 23 are formed whose-related to the conveying direction (arrow 36) of the fiber stream - downstream wall in continuous convex curvature in the concave sliding surface 21a of the guide rail 21 passes, so that a tear-free continuous wall flow of blown air and tobacco on the sliding surface 21 is formed.
  • the individual segments 38 are produced as extruded sections, whose respective adjacent boundary surfaces always guarantee optimum 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 Vorrichtung zum Erzeugen eines ausgebreiteten Faserstromes aus Tabakfasern Expired - Lifetime EP1020125B1 (de)

Applications Claiming Priority (2)

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

Publications (3)

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

Family

ID=7894178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99125292A Expired - Lifetime EP1020125B1 (de) 1999-01-14 1999-12-18 Vorrichtung zum Erzeugen eines ausgebreiteten Faserstromes aus Tabakfasern

Country Status (8)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10035692A1 (de) 2000-07-20 2002-01-31 Hauni Maschinenbau Ag Verfahren und Vorrichtung zum Vereinzeln von Tabakfasern
CA2499853C (en) * 2004-03-15 2012-11-13 Universal Leaf Tobacco Company, Inc. Apparatus and method for scanning and sorting tobacco leaves
US8281931B2 (en) * 2009-09-18 2012-10-09 Key Technology, Inc. Apparatus and method for post-threshing inspection and sorting of tobacco lamina

Family Cites Families (9)

* 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
US4306358A (en) * 1979-08-15 1981-12-22 Amf Incorporated Air drying apparatus
IT1167017B (it) * 1982-12-02 1987-05-06 Hauni Werke Koerber & Co Kg Dispositivo per formare un filone di tabacco
IT1244317B (it) * 1989-11-25 1994-07-08 Koerber Ag Procedimento e dispositivo per produrre un filone di tabacco
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
JP3431716B2 (ja) * 1995-02-16 2003-07-28 日本たばこ産業株式会社 シガレット製造機の刻みたばこ給送装置
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

Also Published As

Publication number Publication date
EP1020125A3 (de) 2005-04-13
ES2267221T3 (es) 2007-03-01
CN1144538C (zh) 2004-04-07
US20020162561A1 (en) 2002-11-07
PL337684A1 (en) 2000-07-17
CN1260150A (zh) 2000-07-19
PL192182B1 (pl) 2006-09-29
EP1020125A2 (de) 2000-07-19
DE19901087A1 (de) 2000-07-20
US6701933B2 (en) 2004-03-09
DE59913731D1 (de) 2006-09-14
ATE334605T1 (de) 2006-08-15
JP2000210068A (ja) 2000-08-02
JP4287968B2 (ja) 2009-07-01

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