US3795249A - Method and apparatus for increasing the density of tobacco in predetermined sections of a tobacco braid - Google Patents

Method and apparatus for increasing the density of tobacco in predetermined sections of a tobacco braid Download PDF

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Publication number
US3795249A
US3795249A US00287786A US3795249DA US3795249A US 3795249 A US3795249 A US 3795249A US 00287786 A US00287786 A US 00287786A US 3795249D A US3795249D A US 3795249DA US 3795249 A US3795249 A US 3795249A
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United States
Prior art keywords
tobacco
stream
conveyor belt
slots
wheel
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Expired - Lifetime
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US00287786A
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English (en)
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A Cristiani
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AMF Inc
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AMF Inc
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    • 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
    • A24C5/1814—Forming the rod containing parts of different densities, e.g. dense ends

Definitions

  • ABSTRACT In a cigarette making machine forming a continuous cigarette rod from a braid of cut tobacco, short sections or increments of cut tobacco are periodically added to and held by a pneumatic tape prior to the receipt by the pneumatic tape of the trimmed braid of cut tobacco from a pneumatic braid forming wheel.
  • the increments of cut tobacco are added onto the tape in synchronism with the movement of the tape and the cigarette rod cut off. device so that the center line of each of the increments coincides substantially with the line where the cigarette rod will be cut to form a single cigarette.
  • This invention relates generally to cigarette makers of the type which forms a continuous braid of cut to-' bacco that is subsequently wrapped longitudinally in a paper tape and then sealed as a tube to form a continuous cigarette rod, the rod then being cut at regular intervals into predetermined lengths to obtain individual cigarettes. More particularly, this invention relates to a method and apparatus for increasing the density of the cut tobacco braid where the rod is cut when making individual cigarettes and is an improvement over the method and apparatus for forming a tobacco rod of my U.S. application, Ser. No. 742,93l, now U.S. Pat. No. 3,548,837. I
  • Cigarettes have a tendency to shed or lose cut tobacco from their ends. Tobacco is most commonly lost from cigarette ends when the cigarettes are collected after the rod is cut, and during the subsequent processing of the cigarettes such as adding filter plug assemblies packing the cigarettes and, to a smaller degree, parcelling of the cigarettes. Loss of tobacco from the ends of cigarettes is also caused by repeated manipulations of the cigarette package by the smoker.
  • the core of cigarettes is formed by feeding cut tobacco which has been adequately disentangled to a movable support such as a pneumatic wheel.
  • the cut tobacco is held on to the surface of the wheel by suction, assumes the shape of a rod, and is commonlyreferredto as a braid which is usually soft and continuous.
  • surplus tobacco is removed by a trimming device.
  • the braid which has been trimmed to a uniform thickness is deliveredto a transfer unit, for instance, a pneumatic tape, for further processing.
  • the braid is Wrappedin a paper tape which is sealed to become -a continuous cigarette rod that is then cut into predetermined equal lengths or segments where each length or segment constitutes a single cigarette.
  • the movements of the multiple elements forming the cigarette rod are synchronized with the cigarette rod cutter so that all'the cigarettes obtained from the cigarette rod are cut to a desired equal same length.
  • the incremental lengths of cut tobacco can be formed from the surplus tobacco cut off or removed from the tobacco braid by the trimming device. In this manner, the excess tobacco can be re-utilized practically immediately after it is removed or trimmed from the braid and in the vicinity of the area where this excess or rejected tobacco is removed.
  • incremental lengths of cut tobacco of predetermined dimensions formed from surplus or excess tobacco rejected or removed from the braid by the trimming device are transferred, at regular intervals, to a pneumatic tape upstream of the point where the trimmed braid is transferred onto the tape.
  • the transfer of the incremental lengths of cut tobacco is synchronized with the tape movement and cut off knife movement in such a manner that the incremental lengths of cut tobacco transferred to the tape have their center lines in substantial alignment with the lines along which the cigarette rod is cut to form the single cigarettes.
  • crem'ents coincides substantially with a line where the will best be understood from the following description when read in connection with the accompanying drawings.
  • FIGURE of the drawings is a schematic side elevational view of a portion ofa cigarette making machine with parts thereof broken away to better illustrate the present invention.
  • a suction wheel I is provided at its periphery anumber of slots 101, arranged circumferentially and equispaced angularly from each other. The bottom of each slot is open for selective coupling to a source of suction connected to the. interior chamber of wheel 1 by suitable means, not illustrated.
  • a curved shutter 2 within wheel 1 selectively controls the coupling of the slots 10] 'to the source of suction by selectively blocking the opening at the bottom of each s1ot.'The shutter '2.extends along an arc of predetermined length as illustrated in the drawing.
  • Wheel 1 is operatively positioned between trimming device 6 (corresponding to trimming device 83 of U.S. Pat, No. 3,548,837) associated .with the pneumatic wheel 5 corresponding to wheel of U.S. Pat. No.
  • the quantity of tobacco removed by trimming device 6 is in excess of the amount of tobacco required for forming the incremental lengths of cut tobacco 9.
  • the tobacco trimmed from the incremental lengths of cut tobacco 9 in the slots 101 together with the tobacco trimmed from the braid by trimming device 4 is conveyed to or collected on transfer tape 7 (corresponding to conveyor 85 of US. Pat. No. 3,548,837) which returns this tobacco to the hopper, not shown.
  • the incremental lengths of cut tobacco 9 are fed to the tape 3 at the point where the tape 3 and wheel 1 meet, and under the influence of suction or a vacuum acting through the tape 3 are picked up and held by the tape 3, the suction to the slots 101 when properly positioned adjacent the tape 3 having been cut off to permit the incremental lengths of cut tobacco to be transferred.
  • one end 102 of shutter 2 shuts off the suction slightly in advance of the slot 101 of wheel 1 contacting tape 3.
  • the speed of rotation of wheel 1 is synchronized to the rate of advance of tape 3 and the speed of the rod cut off device conventionally employed in cigarette making machines such that sequential incremental lengths of cut tobacco 9 transferred by the wheel 1 onto the tape 3 are equispaced from each other by a distance corresponding substantially to the length of a cigarette.
  • the incremental lengths of cut tobacco 9 on the tape 3 reach the point where the tape 3 is adjacent the wheel 5, the trimmed tobacco braid 8, delivered by the wheel to the tape, is held to the tape 3 by suction and covers the incremental lengths of cut tobacco 9 previously transferred to the tape 3 by the wheel 1.
  • the rod formed on and supported by the tape 3 has equispaced sections of braid 9 having incremental lengthsof cut tobacco 9 in which the density of tobacco is greater than in the'other portions ofthe braid.
  • the timing of the rotation of wheel 1 relative to the rate of advance of tape 3 and the speed of the rod cut off device is such that the incremental lengths of cut tobacco occupy those portions of the rod where the cut is actually made to form single cigarettes.
  • the resulting single cigarettes so obtained have a higher density of tobacco at their ends, to prevent or compensate for the subsequent loss of tobacco or end leakage effect which can occur during subsequent manipulations and handling of the cigarettes up to the actual smoking of the cigarette.
  • Apparatus for increasing the density of portions of a stream of tobacco which comprises:
  • a conveyor belt for receiving and conveying a stream of tobacco of predetermined thickness
  • a cylindrical member mounted for rotation about an axis spaced from the eonveyorbelt a distance substantially equal to the radius of the cylindrical member and the predetermined thickness of the tobacco stream, the cylindrical member being operable to receive a stream of tobacco and convey it to said conveyor belt,
  • a wheel mounted for rotation about an axis spaced from the conveyor belt a distance substantially equal to the radius of the wheel, said axis being located upstream of the cylindrical member axis with respect to the conveyor belt,
  • means for generating a suction force coupled to the slots in the wheel means mounted adjacent the cylindrical member for trimming the tobacco held thereon to said predetermined thickness, the trimmed tobacco being conveyed to the slots in the wheel at least partially by the suction being generated thereat, and
  • suction means are coupled to the cylindrical member to hold the stream of tobacco thereon.
  • suction means are coupled to the cylindrical member to hold the stream of tobacco thereon.
  • the tobacco increment transferring means includes means for successively placingthe slots in juxtaposition with the conveyor belt and means for interrupting the suction coupled to the slots in the wheel as the slots are placed in juxtaposition with the conveyor belt.
  • Apparatus for increasing the density of portions of a stream of tobacco which comprises:
  • a conveyor belt for receiving and conveying a stream of tobacco of predetermined thickness
  • means for conveying a stream of tobaceoto the conveyor belt at least a portion of the means being mounted adjacent to the conveyor belt, means for forming a succession of tobacco increments, said means being mounted adjacent the conveyor belt upstream of the tobacco stream conveying means, and including a wheel having means providing a series of slots therein, suction means coupled to said slots to retain the increments of to. bacco therein, means for supplying tobacco to-said slots, and means for rotating the wheel to drive the tobacco filled slots into juxtaposition with the conveyor belt,
  • said means for supplying tobacco to said slots including means mounted adjacent the tobacco stream conveying means for trimming the stream of tobacco thereon to a predetermined depth, the excess tobacco particles being directed toward the slots in the increment forming wheel by the inertia provided by the tobacco stream conveying means, and

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
US00287786A 1970-02-05 1972-09-11 Method and apparatus for increasing the density of tobacco in predetermined sections of a tobacco braid Expired - Lifetime US3795249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1246070 1970-02-05

Publications (1)

Publication Number Publication Date
US3795249A true US3795249A (en) 1974-03-05

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US00287786A Expired - Lifetime US3795249A (en) 1970-02-05 1972-09-11 Method and apparatus for increasing the density of tobacco in predetermined sections of a tobacco braid

Country Status (8)

Country Link
US (1) US3795249A (cs)
JP (1) JPS5220557B1 (cs)
BR (1) BR7100761D0 (cs)
CA (1) CA923398A (cs)
DE (1) DE2101865A1 (cs)
FR (1) FR2074069A5 (cs)
GB (1) GB1284788A (cs)
NL (1) NL7017951A (cs)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999559A (en) * 1973-05-30 1976-12-28 Molins Limited Manufacture of filter-tipped cigarettes
US4009722A (en) * 1974-09-26 1977-03-01 Hauni-Werke Korber & Co., Kg Method and machine for making cigarettes with composite fillers
US4516585A (en) * 1982-09-02 1985-05-14 R. J. Reynolds Tobacco Company Method and apparatus for producing a multiple-blend cigarette
US4593704A (en) * 1982-12-02 1986-06-10 Hauni-Werke Korber & Co. Kg. Method of and apparatus for building a composite tobacco stream
US4693263A (en) * 1985-03-16 1987-09-15 Hauni-Werke Korber & Co. Kg Method and apparatus for making a composite stream from fibrous material of the tobacco processing industry
US4693262A (en) * 1985-03-09 1987-09-15 Hauni-Werke Korber & Co. Kg Apparatus for forming batches of tobacco and the like
US4716913A (en) * 1985-05-15 1988-01-05 Rothmans Of Pall Mall Limited Composite cigarettes
US4741350A (en) * 1985-11-19 1988-05-03 G. D. Societa Per Azioni Method for producing cigarettes containing at least two different tobacco mixtures
US4774969A (en) * 1985-03-09 1988-10-04 Korber Ag Method and apparatus for accumulating particles of tobacco into batches and for forming a composite stream containing several types of tobacco
US4793364A (en) * 1985-02-09 1988-12-27 Molins Plc Cigarette manufacture
US4896681A (en) * 1987-08-11 1990-01-30 Rothmans, Benson & Hedges Inc. Tobacco blend formation
FR2661592A1 (fr) * 1990-05-02 1991-11-08 Molins Plc Machine pour la fabrication de cigarettes.
US5199446A (en) * 1988-07-12 1993-04-06 Molins Plc Cigarette making machine
WO1996027304A1 (en) * 1995-03-08 1996-09-12 Molins Plc Cigarette making machine
EP1275311A2 (de) 2001-07-10 2003-01-15 Hauni Maschinenbau Aktiengesellschaft Vorrichtung zur Vorbereitung eines Faserstranges der tabakverarbeitenden Industrie
EP1224874A3 (de) * 2001-01-18 2003-12-03 Hauni Maschinenbau AG Verfahren und Vorrichtung zum Bilden eines Tabakstranges für die Herstellung von stabförmigen Artikeln der tabakverarbeitenden Industrie
EP1547475A1 (en) * 2003-12-22 2005-06-29 G.D Societ Per Azioni Unit for forming a continuous mat of tobacco
WO2016120470A1 (en) * 2015-01-30 2016-08-04 Philip Morris Products S.A. Tobacco rod comprising a plurality of tobacco materials

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4605013A (en) * 1983-02-02 1986-08-12 Hauni-Werke Korber & Co. Kg Method and apparatus for forming discrete batches of tobacco particles
IT1168681B (it) * 1983-09-12 1987-05-20 Gd Spa Macchina confezionatrice di sigarette del tipo a baco continuo

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1721117A (en) * 1925-03-24 1929-07-16 Hopkins Nevil Monroe Cigarette-manufacturing machinery
US1977998A (en) * 1932-07-26 1934-10-23 American Mach & Foundry Manufacture of cigarettes
GB813576A (en) * 1955-12-29 1959-05-21 Desmond Walter Molins Improvements in or relating to cigarette-making machinery
DE1105322B (de) * 1958-11-12 1961-04-20 Kurt Koerber Vorrichtung zum Bilden eines Tabakstranges
GB880850A (en) * 1959-08-18 1961-10-25 Gallaher Ltd Improvements in or relating to cigarette making machines
GB948736A (en) * 1960-01-15 1964-02-05 Kurt Koerber Methods and apparatus for producing a tobacco stream or rod
GB982382A (en) * 1961-09-14 1965-02-03 American Mach & Foundry Cigarette making machine
US3196880A (en) * 1961-10-05 1965-07-27 American Mach & Foundry Cigarette making machine
US3306305A (en) * 1958-04-28 1967-02-28 Molins Organisation Ltd Manufacture of cigarettes

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1721117A (en) * 1925-03-24 1929-07-16 Hopkins Nevil Monroe Cigarette-manufacturing machinery
US1977998A (en) * 1932-07-26 1934-10-23 American Mach & Foundry Manufacture of cigarettes
GB813576A (en) * 1955-12-29 1959-05-21 Desmond Walter Molins Improvements in or relating to cigarette-making machinery
US3306305A (en) * 1958-04-28 1967-02-28 Molins Organisation Ltd Manufacture of cigarettes
DE1105322B (de) * 1958-11-12 1961-04-20 Kurt Koerber Vorrichtung zum Bilden eines Tabakstranges
GB897551A (en) * 1958-11-12 1962-05-30 Kurt Koerber Method and apparatus for forming a tobacco rod
GB880850A (en) * 1959-08-18 1961-10-25 Gallaher Ltd Improvements in or relating to cigarette making machines
GB948736A (en) * 1960-01-15 1964-02-05 Kurt Koerber Methods and apparatus for producing a tobacco stream or rod
GB982382A (en) * 1961-09-14 1965-02-03 American Mach & Foundry Cigarette making machine
US3196880A (en) * 1961-10-05 1965-07-27 American Mach & Foundry Cigarette making machine

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE30865E (en) * 1973-05-30 1982-02-16 Molins Limited Manufacture of filter-tipped cigarettes
US3999559A (en) * 1973-05-30 1976-12-28 Molins Limited Manufacture of filter-tipped cigarettes
US4009722A (en) * 1974-09-26 1977-03-01 Hauni-Werke Korber & Co., Kg Method and machine for making cigarettes with composite fillers
US4516585A (en) * 1982-09-02 1985-05-14 R. J. Reynolds Tobacco Company Method and apparatus for producing a multiple-blend cigarette
US4593704A (en) * 1982-12-02 1986-06-10 Hauni-Werke Korber & Co. Kg. Method of and apparatus for building a composite tobacco stream
US4793364A (en) * 1985-02-09 1988-12-27 Molins Plc Cigarette manufacture
US4774969A (en) * 1985-03-09 1988-10-04 Korber Ag Method and apparatus for accumulating particles of tobacco into batches and for forming a composite stream containing several types of tobacco
US4693262A (en) * 1985-03-09 1987-09-15 Hauni-Werke Korber & Co. Kg Apparatus for forming batches of tobacco and the like
US4693263A (en) * 1985-03-16 1987-09-15 Hauni-Werke Korber & Co. Kg Method and apparatus for making a composite stream from fibrous material of the tobacco processing industry
EP0202835B1 (en) * 1985-05-15 1990-02-07 Rothmans, Benson & Hedges Inc. Composite cigarettes
US4716913A (en) * 1985-05-15 1988-01-05 Rothmans Of Pall Mall Limited Composite cigarettes
US4741350A (en) * 1985-11-19 1988-05-03 G. D. Societa Per Azioni Method for producing cigarettes containing at least two different tobacco mixtures
US4896681A (en) * 1987-08-11 1990-01-30 Rothmans, Benson & Hedges Inc. Tobacco blend formation
US5199446A (en) * 1988-07-12 1993-04-06 Molins Plc Cigarette making machine
FR2661592A1 (fr) * 1990-05-02 1991-11-08 Molins Plc Machine pour la fabrication de cigarettes.
WO1996027304A1 (en) * 1995-03-08 1996-09-12 Molins Plc Cigarette making machine
EP1224874A3 (de) * 2001-01-18 2003-12-03 Hauni Maschinenbau AG Verfahren und Vorrichtung zum Bilden eines Tabakstranges für die Herstellung von stabförmigen Artikeln der tabakverarbeitenden Industrie
EP1275311A2 (de) 2001-07-10 2003-01-15 Hauni Maschinenbau Aktiengesellschaft Vorrichtung zur Vorbereitung eines Faserstranges der tabakverarbeitenden Industrie
EP1547475A1 (en) * 2003-12-22 2005-06-29 G.D Societ Per Azioni Unit for forming a continuous mat of tobacco
US20050155614A1 (en) * 2003-12-22 2005-07-21 G.D Societa' Per Azioni Unit for forming a continuous mat of tobacco
US7380552B2 (en) 2003-12-22 2008-06-03 G.D Societa'per Azioni Unit for forming a continuous mat of tobacco
CN1640332B (zh) * 2003-12-22 2011-07-20 吉第联合股份公司 用于形成连续烟草片的设备
WO2016120470A1 (en) * 2015-01-30 2016-08-04 Philip Morris Products S.A. Tobacco rod comprising a plurality of tobacco materials
CN107105757A (zh) * 2015-01-30 2017-08-29 菲利普莫里斯生产公司 包含多种烟草材料的烟丝条
RU2665402C1 (ru) * 2015-01-30 2018-08-29 Филип Моррис Продактс С.А. Табачный стержень, содержащий множество табачных материалов
CN107105757B (zh) * 2015-01-30 2018-11-23 菲利普莫里斯生产公司 包含多种烟草材料的烟丝条

Also Published As

Publication number Publication date
NL7017951A (cs) 1971-08-09
JPS5220557B1 (cs) 1977-06-04
CA923398A (en) 1973-03-27
BR7100761D0 (pt) 1973-05-03
DE2101865A1 (de) 1971-08-19
FR2074069A5 (cs) 1971-10-01
GB1284788A (en) 1972-08-09

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