US3291137A - Tobacco manipulating machinery - Google Patents

Tobacco manipulating machinery Download PDF

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Publication number
US3291137A
US3291137A US456020A US45602065A US3291137A US 3291137 A US3291137 A US 3291137A US 456020 A US456020 A US 456020A US 45602065 A US45602065 A US 45602065A US 3291137 A US3291137 A US 3291137A
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US
United States
Prior art keywords
dust
passage
tobacco
air
conveyor
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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
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US456020A
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English (en)
Inventor
Labbe Francis Auguste Maurice
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.)
Molins Machine Co Ltd
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Molins Machine Co Ltd
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Filing date
Publication date
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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
    • A24C5/185—Separating devices, e.g. winnowing, removing impurities
    • 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

  • This invention relates to improvements in continuous rod cigarette-making machinery in which a continuous tobacco filler is formed and is more particularly concerned with improvements in apparatus for feeding cut tobacco to form a continuous tobacco filler.
  • the continuous tobacco filler formed in continuous rod cigarette-making machinery may be produced by directing an air stream carrying out tobacco towards an air-pervious conveyor band continuously moving along a path generally perpendicular to the direction of flow of the air stream.
  • the cut tobacco particles are entrapped by conveyor and build up to form a filler thereon.
  • U.S. Patent No. 3,088,468 A detailed description of a continuous rod cigarette-making machine of this type may be found in the above-mentioned U.S. Patent No. 3,088,468.
  • the cut tobacco particles invariably include quite small particles called tobacco dust which are not entrapped on the porous conveyor band but are carried through it by the air stream and are discarded.
  • tobacco dust is itself a smokable product and therefore the discarding of the dust involves an appreciable economic loss to the cigarette manufacturer.
  • Another object of the present invention is to provide means for readily incorporating the tobacco dust into the filler in such a manner as to prevent its segregation in the course of forming the completed cigarette rod.
  • FIG. 1 shows, in side elevation and with parts broken away, means for forming a continuous tobacco filler in a continuous rod cigarette-making machine
  • FIGURE 2 is a section on the line IIII, FIGURE 1;
  • FIGURE 3 shows diagrammatically, and with parts broken away, an end view as seen from the right-hand side of FIGURE 1 of the apparatus shown in FIGURE 1, together with a diagrammatic representation of air supply means;
  • FIGURE 4 shows, with certain parts broken away, a
  • a perforated endless metal conveyor band 1 passes over pulleys 2 and 3 and over a shoe 4 which is adjustably mounted to take up slack in the band.
  • the pulley 2 is driven in the direction indicated by the arrow.
  • band 1 extends directly beneath a suction chamber 5, the edges of the band, as shown in FIGURE 2, engaging shoulders formed on opposed members 6 which form a conduit communicating with the suction chamber.
  • These converging surfaces 7a form with the band a channel 60 along which a stream of tobacco is conveyed by the band 1.
  • the conveyor band 1, suction chamber 5, and channel 61 ⁇ extend beyond the passage 8 in the direction of movement of band 1 and about midway between the end wall 9 and the pulley 2 there is located a trimming device comprising a pair of discs 11 arranged side by side a short distance beneath the band 1.
  • the discs 11, only one of which is visible in FIGURE 1, are arranged to be rotated so that their opposed edges cooperate to trim the tobacco filler carried past them by the band 1 by removing surplus tobacco.
  • the discs are arranged for bodily movement up and down in response to measurements effected on the tobacco filler or on the wrapped cigarette rod, or on both, by measuring devices, not shown, in the manner disclosed in Us. Patent No.
  • a pivoted flap 14 is mounted just to the left of the down stream end of passage 8 in order to close the gap between the channel 60 along which the tobacco filler is conveyed out of the passage, and the top edge of the end wall 9.
  • the flap 14 is urged upwardly into channel 60 by the pressure of air flowing from atmosphere towards the band 1. Its purpose is to prevent atmospheric air from flowing over the wall 9 into the passage 8 which might cause turbulence in the region of the tobacco filler and consequent disturbance of the cut tobacco in the filler.
  • FIG. 8 One of the side Walls of the passage 8 is apertured by the provision of a grill 15, FIGURES 1, 2 and 4, formed of expanded rnetal having numerous small apertures constituting louvres. These apertures communicate with a duct 16, FIGURE 3, from which air is drawn by suction means to be referred to later.
  • FIGURE 4 shows a modification wherein the apertures communicate with a manifold 16'.
  • the purpose of this arrangement is to draw off some of the air from the passage 8 and thus provide a greater flow of air through the passage than would be practical if the whole of the air were drawn through the conveyor band 1.
  • the presence of this grill near the top of the passage may be in part responsible for the tendency for air to flow into the passage over the end wall 9, as explained above, if not prevented from doing so by the flap 14.
  • a carded conveyor drum 21 receives tobacco in bulk on the upper part of its surface and carries it past a carded refuser roller 22, and the tobacco is picked from the drum 21 by the picker roller 23 and impelled across a guide plate 24. Beyond the plate is an air duct 25 having an entrance comprising a rotating foraminous cylinder 26, and the passage 8 is located alongside the duct.
  • the suction chamber 5 communicates by way of a conduit 27 with a suction fan 28 by which air is drawn through the passage 8 and the band 1.
  • the duct 25 is connected by a conduit 29 with a further suction fan 30.
  • the duct 16 connects the passage 8 to the conduit 29 so that air is drawn from the passage through the louvred grill 15.
  • Within the conduit 29 is a dust separating device 31 by which dust is extracted and passed with some air through a conduit 32 into the conduit 27.
  • the outlet of the fan communicates with a conduit 33 which conducts air to an air manifold 34, through which the air is discharged to a diffuser 35 comprising a curved plate 36, a sheet 37 of expanded metal, and a chamber 38 to receive short particles of tobacco which may be contained in the air.
  • the air discharged by the fan 28 passes through a conduit 39 to a multi-unit cyclone 40 by which, after removal of dust, the air is discharged to atmosphere through the pipes 40a.
  • a further dust-separating device 41 is provided in the conduit 39 and is connected by a pipe 42 to the open side of channel 60 at a position down stream from passage 8 to convey extracted dust to the filler which is being continuously conveyed on the air-pervious band 1 through the channel 60.
  • the amount of dust conveyed from the dust-separating device 41 to the tobacco filler may be controlled by a valve 43 in the conduit 42.
  • the air drawn into the passage 8 and duct 25 passes through an apertured plate 44.
  • the air flowing through the left-hand end of plate 44 can be controlled to a certain extent by the movement of a pivoted plate 53 which can be used to blank olT a portion of the plate 44.
  • the plate 53 is carried by a member 52 pivotally mounted at 52a.
  • the air drawn through the foraminous cylinder 26 into the duct 25 deflects the tobacco impelled over the plate 24 so that the tobacco particles move in a curved path into the entrance to the passage 8 in which they are accelerated by reason of the high-velocity air current flowing upwardly through the passage. Due to the rotation of the cylinder 26 tobacco which comes into contact with its surface is thrown off or removed by scrapers which are not shown.
  • Vanes 45 direct the air entering the passage 8 in a direction at a slight angle with respect to the length of the band 1.
  • a plate 51 which forms with the plate 44 a duct leading to a chamber 54 into which portions of stalk or stem are projected by the picker 23. is provided at each end of the plate 51.
  • tobacco particles are impelled up the passage 8 by the high-velocity air current and build up on the continuously moving band 1 to form a filler thereon.
  • the air drawn through the rotating perforated cylinder 26 draws tobacco dust from the tobacco entering the lower end of the passage 8. This tobacco dust is drawn through the cylinder 26 and up the duct 25 and through the duct 29.
  • the action of the air drawn through the conveyor band 1 into the suction chamber 5 draws with it some of the dust not entrapped on the conveyor band and this dust is drawn through duct 27 and fan 28.
  • Dust is extracted from the air passing through duct 29 by the dust-separating device 31, and this dust is added to the air-dust mixture in duct 27 by means of conduit 32.
  • the How in conduit 32 may be controlled by valve 62.
  • the dust suspended in the air from ducts 27 and 29 and the con-, duit 32 is extracted by the dust-separating device 41 and passes with air along pipe 42 to channel 60 at a point downstream from passage 8 where the dust from pipe 42 is drawn by the atmospheric air passing into chamber 5 into the tobacco filler.
  • the amount of dust extracted by dust-separating device 41 and fed to the filler may be controlled by operation of valve 43 which controls the air flow through pipe 42 and thus the amount of dust conveyed.
  • the control of the percentage of dust in the tobacco filler is necessary to assure that the continuous cigarette rod will have a desired proportion of tobacco filler to dust. If necessary valve 43 may be completely closed and all of the dust in duct 39 will then pass to the cyclones 40.
  • the apparatus herein above described may be varied in construction.
  • the device disclosed above is selected to illustrate the invention and is substantially one embodiment thereof.
  • the invention is not to be restricted to the precise details of the structure as disclosed.
  • a continuous rod cigarette-making machine having apparatus for forming a tobacco filler, comprising an elongated air-pervious conveyor on which the filler is progressively built up and which is arranged to move lengthwise, passage means leading to the conveyor and extending along a substantial length of said conveyor, the conveyor conveying a built-up filler away from said passage, means defining an inlet to said passage, a first pump, a first conduit communicating with the first pump and the conveyor and through which the first pump draws air through the conveyor and the passage, means to feed tobacco particles into the inlet to said passage, suction means outside said passage and adjacent said inlet, a second pump, a second conduit communicating with the second pump and the suction means and through which the second pump draws air through said suction means across the path of the tobacco entering said passage, the improvement comprising first dust-extracting means in communication with the first pump to extract tobacco dust from air which has passed through the passage and the conveyor, second dust-extracting means in communication with the second pump to extract tobacco dust from air after it has been drawn into
  • a continuous rod cigarette-making machine having apparatus for forming an elongated tobacco filler, comprising an air-pervious conveyor on which the filler is progressively built up and which is arranged to move in a linear direction, means providing a filler supply passage communicating with said conveyor and extending along a substantial length of said conveyor to build up a filler on said conveyor, said conveyor conveying the built-up filler away from said passage, channel means extending along a further length of said conveyor beyond said supply passage, means defining an inlet to said supply passage, a first pump to draw air through said airpervious conveyor and said supply passage, means to feed tobacco particles in a predetermined path toward and into said inlet, suction means outside said supply passage and adjacent said inlet, a second pump to draw air through said suction means across said path of the tobacco entering said supply passage, the improvement comprising first dust-extracting means to extract tobacco dust from air passing through said suction means, second dust-extracting means to extract tobacco dust from air which has passed through said supply passage and said conveyor, a

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
US456020A 1958-01-21 1965-04-26 Tobacco manipulating machinery Expired - Lifetime US3291137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2019/58A GB914821A (en) 1958-01-21 1958-01-21 Improvements in or relating to continuous rod cigarette making machinery

Publications (1)

Publication Number Publication Date
US3291137A true US3291137A (en) 1966-12-13

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ID=9732163

Family Applications (1)

Application Number Title Priority Date Filing Date
US456020A Expired - Lifetime US3291137A (en) 1958-01-21 1965-04-26 Tobacco manipulating machinery

Country Status (7)

Country Link
US (1) US3291137A (fr)
BE (1) BE574915A (fr)
CH (2) CH364446A (fr)
DE (2) DE1782715A1 (fr)
GB (1) GB914821A (fr)
MY (1) MY6400125A (fr)
NL (1) NL106921C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567902A (en) * 1983-08-11 1986-02-04 Philip Morris Incorporated Tobacco trimmer device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080472B1 (fr) * 1981-06-03 1986-04-02 Molins Plc Fabrication de cigarettes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1808795A (en) * 1928-07-05 1931-06-09 Firm Universelle Cigarettenmas Means for spreading cut tobacco
US2467248A (en) * 1942-04-03 1949-04-12 American Mach & Foundry Shorts handling means for cigarette tobacco feeds
US2617426A (en) * 1944-12-02 1952-11-11 American Mach & Foundry Rod former tongue
GB764551A (en) * 1954-01-07 1956-12-28 Decoufle Usines Improvements in or relating to devices for forming cigarette rods in cigarette-making machines
FR1179992A (fr) * 1956-12-18 1959-05-29 Decoufle Usines Procédé pour réaliser un boudin de tabac de dimensions et de densité uniformes dans les machines à cigarettes ou autres
US2932300A (en) * 1956-11-14 1960-04-12 American Mach & Foundry Cigarette machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE590895C (de) * 1931-05-16 1934-01-12 Bernhard Pfeiffer Vorrichtung zur Herstellung von Vliesen
FR1007040A (fr) * 1948-02-17 1952-04-30 Decoufle Usines Perfectionnement à la formation du boudin de tabac dans la machine à cigarettes à boudin continu

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1808795A (en) * 1928-07-05 1931-06-09 Firm Universelle Cigarettenmas Means for spreading cut tobacco
US2467248A (en) * 1942-04-03 1949-04-12 American Mach & Foundry Shorts handling means for cigarette tobacco feeds
US2617426A (en) * 1944-12-02 1952-11-11 American Mach & Foundry Rod former tongue
GB764551A (en) * 1954-01-07 1956-12-28 Decoufle Usines Improvements in or relating to devices for forming cigarette rods in cigarette-making machines
US2932300A (en) * 1956-11-14 1960-04-12 American Mach & Foundry Cigarette machine
FR1179992A (fr) * 1956-12-18 1959-05-29 Decoufle Usines Procédé pour réaliser un boudin de tabac de dimensions et de densité uniformes dans les machines à cigarettes ou autres

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567902A (en) * 1983-08-11 1986-02-04 Philip Morris Incorporated Tobacco trimmer device

Also Published As

Publication number Publication date
BE574915A (fr) 1959-05-15
DE1292567B (de) 1969-04-10
NL106921C (nl) 1963-12-16
MY6400125A (en) 1964-12-31
DE1782715A1 (de) 1971-11-18
NL235280A (fr) 1963-07-15
GB914821A (en) 1963-01-02
CH369396A (fr) 1963-05-15
CH364446A (fr) 1962-09-15

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