US3164158A - Tobacco manipulating machines - Google Patents

Tobacco manipulating machines Download PDF

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Publication number
US3164158A
US3164158A US113775A US11377561A US3164158A US 3164158 A US3164158 A US 3164158A US 113775 A US113775 A US 113775A US 11377561 A US11377561 A US 11377561A US 3164158 A US3164158 A US 3164158A
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US
United States
Prior art keywords
band
filler
passage
conveyor
tobacco
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
US113775A
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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
Original Assignee
Molins Machine Co Ltd
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 Molins Machine Co Ltd filed Critical Molins Machine Co Ltd
Application granted granted Critical
Publication of US3164158A publication Critical patent/US3164158A/en
Anticipated expiration legal-status Critical
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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

  • This invention concerns improvements in or relating to a cigarette making machine in which a tobacco filler is formed on a flat air-pervious conveyor band and is held to the band by suction applied through the conveyor band.
  • the invention is applied to a cigarette making machine in which a tobacco filler is formed on a flat air-pervious conveyor band by means of an air stream flowing through a passage toward the conveyor and which is drawn through the conveyor by suction so that the filler .is held to the surface of the band by air pressure, and having side guides forming a trough through which the conveyor and the filler move, and consists in grooves in the side guides extending lengthwise of the trough and adapted to modify the movement of particles toward the band surface by intercepting-some of them, whereby the aggregation of particles on the bands is affected.
  • the juncture between the band and the grooved side guides may have fillets fitted therein so that the surface of the filler near to the band consists of a central flat portion with two sides extending from the edges of the flat portion at an angle of less than 180 and such a fillet may have the section of a triangle with two 45 angles.
  • grooves may be of quite small size, for example /2 mm. deep, and are preferably so shaped that each guide has a section which is substantially that of an Acme thread.
  • FIGURE 1 is a side elevation partly in section of part of a continuous rod cigarette-making machine incorporating a trough according to the present invention
  • FIGURE 2 is a fragmentary view showing a section on the line 22 of FIGURE 1 and drawn to a larger scale;
  • FIGURE 3 is a fragmentary view showing a section on the line 3-3 of FIGURE 1 and drawn to a larger scale;
  • FIGURE 4 is a fragmentary view showing a section of a trough illustrating a modification
  • FIGURE 5 is a cross-section of a wrapped filler made on a machine of the same class but not incorporating the invention
  • FIGURE 6 is a cross-section on a line to agree with line 66, FIGURE 1, in the direction of the arrows but showing guides which will provide a cigarette having a section such as that shown in FIG. 5, and
  • FIGURE 7 is a cross-section on a line to agree with line 77, FIGURE 1, in the direction of the arrows but showing guides which will provide a cigarette having a section such as that shown in FIG. 5.
  • FIGURE 1 forms part of a continuous rod cigarette-making machine which is basically similar to the machine disclosed in US. Patent No. 3,030,965, referred to above.
  • the apparatus comprises a flat perforated metal conveyor band 1 arranged to movein the direction shown by the arrow, beneath a suction chamger 2 which draws air upwardly through the conveyor and.
  • a passage formed by side walls 3 and end walls 4 and 5 extends upwardly towards the band 1.
  • Means (not shown) are provided to supply air to the lower end of the passage, and the arrangement is such that air flows up the passage in a continuous stream at high velocity.
  • Tobacco-feeding means (not shown) are arranged to feed tobacco particles into the passage in such a way that they are impelled upwardly at high velocity to the band 1 by the air stream, and build up on the band to form a filler.
  • Both the band 1 and the suction chamber 2 extend a substantial distance beyond the end wall 4 of the passage, that is to the left of the wall 4 as viewed in FIGURE 1, and air is drawn through that part of the band from atmosphere.
  • This enables the tobacco filler which has been built up on the band in the passage to be held suctionally on the underside of the band I.
  • a trimming device is provided to remove surplus tobacco from the tobacco filler.
  • This device comprises a pair of cooperating discs 7 (one of which is visible in FIGURE 1) arranged beneath the band 1. Beyond the trimming device, the band 1 extends over a paper web 8, on to which the tobacco filler is led while still suctionally held on the band 1. When suction is cut off from the band, the filler is released and is thereafter conveyed by the paper web, which is then wrapped around it in the conventional manner to form a continuous wrapped rod.
  • the band 1 runs along a trough formed by side guide members 9 and It which form upward extensions of the walls 3, as shown in FIGURE 2.
  • the band runs on a strip 13 of suitable hard-wearing material which is recessed, as shown in FIGURES 2 and 3 to form shoulders engaging the edge portions of the band I.
  • the strip is fitted in rails 14 fixed on top of the members 9 and 10.
  • the guides 9 and 10 are, to the left of the end walls 4 as viewed in FIGURE 1, recessed at 15 (as shown in chain lines in FIGURE 3) to provide an enlarged portion of the trough.
  • a rotatable closure device or wheel 12 Between the recessed parts of the side guide members is mounted a rotatable closure device or wheel 12.
  • the rotatable wheel 12 comprises a hub portion provided with fourteen flat paddles or blades equally spaced around the periphery of the hub and inclined outwards at equal angles.
  • the outer ends of the paddle elements are shaped so as to fit the local cross-section of the side guides 9 and the widths of the paddle elements are such as to fit closely between the guide members 9.
  • the wheel 12 is driven mechanically and each paddle as it reaches the topmost part of its travel lightly contacts the filler.
  • the paddle of the lower part of the wheel at any instant engages closely with the interior of a housing 21 and this housing seals the end wall 4. Therefore the gap between the filler and the end wall 4 is substantially closed, at least to a sufiicient extent to prevent any serious flow of air into the passage from outside.
  • FIGURES 1 to 3 of the drawings It will be seen from FIGURES 1 to 3 of the drawings that the opposed faces of the trough walls 9 and 10 are grooved lengthwise to provide small recesses and ribs.
  • the wall surface has some elfect on the build-up of the filler on the porous band 1 as will now be explained.
  • a further defect is shown diagrammatically in FI G- .URE 5. Because the upper part of the filler is fairly hard, itresists the reshaping of the filler to the circular form when thefiller is drawn through the rod forming apparatus of the 'machine and tends ,tosqueeze the less dense parts rather than to alter its own shape. Furthermore, the trimming operation shown in FIGURE 7 makes the lower part of the filler roughly convex in shape, as
  • trimmers 7 do not cut tobacco but'only separate it
  • the final rod is only about half the cross-sectional area of the filler when it is between the guides 9-10, the fact that the lower part of the filler is rounded by trimming makes it less resistant to pressure than if it had-square corners. The result is that the top of the filler in FIGURE is not tightly packed against the paper wrapper and a slight softness can be felt in the finished rod.
  • the purpose of the grooved surface is to give the successive particles reaching the band an opportunity to bridge the trough and thus to relieve the particles deposited earlier from some of the pressure. Furthermore,
  • the grooves may be about 0.5 mm. deep with the tops and bottoms as small as 0.1 mm. wide. 7
  • the aggregation of the particles on the band is further affected by fitting fillets Zll in the corners to limit the band width.
  • the filler will form as usual because of the suction and tobacco will be held adjacent the fillets;
  • the top of the filler will conform to the shape defined by the band and the fillet sur- Such a shape approaches the shape this part of the filler will take when compressed to the final rod shape snasnas and size.
  • the fillets could, if desired, be of other crosssections, for example the operative faces could be concave arcs.
  • a cigarette making machine comprising Wallsforming a passage through which flows an air stream having tobacco particles entrained therein, an elongated fiat, air pervious conveyor band traversing said pasasge generally normal to the flow of said air stream, said conveyor intercepting the flowing particles in said stream at one end of said passage to build up on said conveyor band a tobacco filler, a suction source communicating with said passage through said pervious conveyorto hold the thus-formed filler to the band surface by air pressure, the end of said passage adjacent the band including side guides defining a tobacco filler-receiving trough with said band, the surfaces of said side guides being formed with alternating lands and grooves extending lengthwise of said trough, said lands and grooves modifying the flow of particles in the vicinity of the band to improve the uniformity of said filler on said band and serving to guide the formed filler as said conveyor leaves said passage.
  • substantially triangular solid fillets are arranged in the corners of said trough immediately proximate said band surface, the exposed faces of said fillets extending at an angle of less than relative to the band surface.
  • each guide has a section which is substantially that of an Acme thread having a depth of approximately /2 mm.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
US113775A 1960-06-21 1961-05-31 Tobacco manipulating machines Expired - Lifetime US3164158A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21715/60A GB941414A (en) 1960-06-21 1960-06-21 Improvements in or relating to tobacco-manipulating machines

Publications (1)

Publication Number Publication Date
US3164158A true US3164158A (en) 1965-01-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
US113775A Expired - Lifetime US3164158A (en) 1960-06-21 1961-05-31 Tobacco manipulating machines

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US (1) US3164158A (de)
DE (1) DE1180659B (de)
GB (1) GB941414A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999005924A1 (de) * 1997-08-02 1999-02-11 Hauni Maschinenbau Ag Vorrichtung zum fördern eines stranges der tabakverarbeitenden industrie
EP1532874A1 (de) * 2003-11-21 2005-05-25 Hauni Maschinenbau AG Kanalwange
ITBO20090110A1 (it) * 2009-02-26 2010-08-27 Gd Spa Unità di alimentazione di un flusso di particelle di tabacco in una macchina confezionatrice di sigarette.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190108877A (en) * 1901-04-30 1901-06-01 Maurice Graham Improvements in Hot Coke Conveyors.
US2103721A (en) * 1936-03-06 1937-12-28 Muller J C & Co Cigarette machine
US2164423A (en) * 1934-12-06 1939-07-04 American Mach & Foundry Manufacture of cigarettes
US2660177A (en) * 1948-02-17 1953-11-24 Usines Deeoufle Sa Automatic tobacco feeding cigarette machine
US2697474A (en) * 1951-07-31 1954-12-21 American Mach & Foundry Hot seal cooling mechanism
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190108877A (en) * 1901-04-30 1901-06-01 Maurice Graham Improvements in Hot Coke Conveyors.
US2164423A (en) * 1934-12-06 1939-07-04 American Mach & Foundry Manufacture of cigarettes
US2103721A (en) * 1936-03-06 1937-12-28 Muller J C & Co Cigarette machine
US2660177A (en) * 1948-02-17 1953-11-24 Usines Deeoufle Sa Automatic tobacco feeding cigarette machine
US2697474A (en) * 1951-07-31 1954-12-21 American Mach & Foundry Hot seal cooling mechanism
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 (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999005924A1 (de) * 1997-08-02 1999-02-11 Hauni Maschinenbau Ag Vorrichtung zum fördern eines stranges der tabakverarbeitenden industrie
US6186315B1 (en) 1997-08-02 2001-02-13 Hauni Maschinenbau Ag Apparatus for transporting a stream of particulate material
CN1112859C (zh) * 1997-08-02 2003-07-02 豪尼机械制造股份公司 烟草加工工业中棒状制品的输送装置及其引导件
EP1532874A1 (de) * 2003-11-21 2005-05-25 Hauni Maschinenbau AG Kanalwange
ITBO20090110A1 (it) * 2009-02-26 2010-08-27 Gd Spa Unità di alimentazione di un flusso di particelle di tabacco in una macchina confezionatrice di sigarette.
WO2010097661A1 (en) * 2009-02-26 2010-09-02 G.D S.P.A. A unit for feeding a flow of tobacco particles in a cigarette maker

Also Published As

Publication number Publication date
DE1180659B (de) 1964-10-29
GB941414A (en) 1963-11-13

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