US2149925A - Method of and apparatus for feeding tobacco to cigarette-making or tobacco-packaging machines - Google Patents

Method of and apparatus for feeding tobacco to cigarette-making or tobacco-packaging machines Download PDF

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Publication number
US2149925A
US2149925A US28348A US2834835A US2149925A US 2149925 A US2149925 A US 2149925A US 28348 A US28348 A US 28348A US 2834835 A US2834835 A US 2834835A US 2149925 A US2149925 A US 2149925A
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United States
Prior art keywords
tobacco
carpet
stream
particles
conveyor
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Expired - Lifetime
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US28348A
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English (en)
Inventor
Molins Harold Bernardo
Isaacs Moses Hyman
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Molins Machine Co Ltd
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Molins Machine Co Ltd
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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
    • A24C5/39—Tobacco feeding devices

Definitions

  • This invention is for an improved method of and apparatus for feeding tobacco to cigarette making or tobacco packaging machines.
  • the term forwardly it shall mean the general direction in which the tobacco is fed by the tobacco feeding apparatus to the cigarette making or tobacco packaging machine.
  • a method of forming a tobacco carpet byfeeding tobacco forwardly to a position at which its velocity is reduced whilst simultaneously confining said tobacco within a passage or a chamber which embraces the region of reduction of velocity in such a manner that compacting of tobacco is brought about by compression produced by said reduction of velocity in said passage or chamber.
  • a method of feeding tobacco comprising the steps of forming tobacco into a carpet on the surface of a conveyor, moving the carpet forwardly to a position at which its velocity is reduced whilst simultaneously confining the carpet transversely of its direction of movement within a passage or a chamber which embraces theregion of reduction of velocity in such manner that compacting of the carpet is brought about by compression produced by said reduction of velocity in said passage or chamber, and transferring tobacco from the compacted carpet to the cigarette making or tobacco packaging machine (e. g., by picking and showering it into the trough of the machine).
  • a method of feeding tobacco to the machine consisting in forming a tobacco carpet by building it up endwise, taking tobacco away from the opposite end of the carpet to that at which it is built up and delivering the tobacco so removed to the machine.
  • a method of forming a tobacco'carpet by feeding shreds or versely of their direction of movement within a chamber or a passage which embraces the region of reduction of velocity in such manner that the carpet is built up endwise within the chamber or passage.
  • a method of forming a tobacco carpet by feeding shreds or particles of tobacco forwardly into a chamber or a passage, impeding the exit of the tobacco from the chamber or passage, and removing the tobacco from the chamber or passage'with a velocity which is less than that at which it enters, whereby a tobacco carpet is built up in the chamber orpassage from the shreds or particles of tobacco.
  • conveyor means to feed a carpet of tobacco forwardly
  • a device disposed in. the path of the carpet to impede its forward movement, said device being movable to feed the carpet forwardly with a slower velocity than that at which it is moved by the conveyor and control means operative upon and arranged transversely of the carpet considered in the direction of movement thereof, said control means being disposed at and in the region of the point at which the velocity particles of tobacco-forwardly to a position at which their velocity is reduced, whilst simultan'e-- ously confining the shreds or particles transof tobacco carpet is changed to confine the tothereisprovidedinorfortobaccofeedingapparammeanstofeedseparatedshredsorparthclesoftobaccointoachamberorpassageprm' tobacco carpet by building up the same endwise,
  • the conveyor may comprise a smooth movable surface, e.
  • control means may comprise a member or members disposed above the conveyor to engage with the upper surface of the carpet, the surface-or surfaces of said member or members which engage with the carpet being either stationary or movable in the direction in which the or passage due to the. reduction of velocity of the tobacco in said chamber or passage.
  • a e means to feed tobacco through the passage and a carded surface arranged to receive tobacco as it issues from the passage and arranged to remove said tobacco at a slower velocity than that at which the tobacco entered the p.
  • flgure 1 is a sectional view of one form of tobacco feeding apparatus co in accordance with the invention.
  • Figure 2 is a sectional view showing a portion of Figure 1 drawn to an enlarged-scale.
  • Figure 3 is a sectional view of a portion of F'lgureldrawntoanenlargedscalean'dshowing a modified form of the invention.
  • Figure 4 is a front elevation, with parts broken away, of the apparatus as viewed from the left of Figure 2.
  • F'igure5 isa sectionaiviewofafurthermodifled form of the invention.
  • tobacco iscon--- tained ins hopper iyandissupported in'the hopperbyarollerrlwhichfeedsthemassof tobacco towardsacombingrollerl.
  • the comb.- ingroller takesaquantityoftobaccofromthe masscontainedinthehopperlandcarriesit upwardly as shown .by the arrow.
  • the tobacco The brushing-roller l'is by means ofv aratchet wheel Ill (Fig.
  • a rotary cleaning device I is provided for cleaning the surface of the-brushing roller I and is driven by a pulley IS! on the spindle of the pickerroller I referred to'below, the pulley I being connectedto another pulley I" on the spindle of the rotary cleaner III by a belt Iii.
  • a roll of tobacco may be formed and maintained from which tobacco is taken by the combing roller 3.
  • the raking device 4 is arranged to'rake and to trim the roll of tobacco in a known manner, whilst a presser device .I is arranged periodically to press the tobacco roll -against the carding of the combing roller 3.
  • the mechanism for operating the raking and pressing devices is described later with refer.- ence to Figures 6 and '7.
  • the raking device 4 and pressing device 6 do not form any part of the present invention, but are described as constituting elements which assist in the feeding of tobacco from the hopper l.
  • the roller 9 is rotated with a velocity such that the shreds or particles of' tobacco showered on to the surface of the roller, by the picker roller U do not become superimposed one uponv the other to form a carpet, but are maintained as far as possible in a substantially separated condition. (This is the meaning to be given herein to the word separated when referring 'to tobacco shreds or particles.)
  • the shroud II is bent upwardly at the inlet end of the chamber to form a bell mouth, and at the opposite end is brought as close as possible to the surface of the carded'roller I2, whilst allowing for any movement to be imparted to the shroud.
  • the side walls 40 consist of flat plates fixed to the frames of the machine so that they embrace the end faces of the roller 9 and the shroud II. They are not shown in Figures 6 and 7, to avoid obscuring other parts of the mechanism, but their shape is clear from Figure 2.
  • the inner face or surface of the shroud II is substantially parallel to the surface of the roller 9, but it is found that a very slight convergence of the surfaces 9 and II from the inlet end to the outlet can be used, provided that the convergence is not so great as to cause choking or jamming in the chamber.
  • the shreds or particles of tobacco are carried by the roller 9 into the chamber and their exit therefrom is impeded by the roller I2 which has a slower peripheral speed than has the roller 9 so that a carpet of tobacco is built up endwise within the chamber, and the tobacco is at the same time confined Within predetermined crosssectional limits by the confining walls of the chamber or passage.
  • the roller I2 removes tobacco from the carpet built up within the chamher at a slower rate than that at which the tobacco is fed into the chamber.
  • a concave shroud I3 which is'just clear of the carding of the roller I2, and which acts as a scraper on the surface of the smooth roller 9, so that the tobacco carpet is removed from the faster moving roller 9 and is carried away positively by the teeth of the carded roller I2 at the opposite end to that at which the carpet is built up.
  • the tobacco which is taken by the roller I2 and carried over the surface of the concave shroud I3 is picked therefrom by a picker roller I4, and is showered into a trough I5 of the machine to which the tobacco is being fed.
  • the trough I5 shown in the drawings represents a well known form of trough used on continuous rod cigarette making machines, or the trough may be used on a tobacco packaging machine in which, for example, a continuous tobacco rod filler is formed.
  • the effect of the rotation of the spindles I8 and I9 is to cause the shroud II to move through a curvilinear path, so that the shroud approaches and recedes from the surface of the smooth roller 9, and when it is in the position at which it is nearest to the surface of the roller 9, the under surface of the shroud H is moving in the same general direction as that in which the surface of the roller 9 is moving.
  • the speed of the shroud is slower than the peripheral speed of the roller 9, but greater than the peripheral speed of the roller I2.
  • shroud II being movable as above described, it may be secured in a fixed position, and in such cases the tobacco carpet formed in the chamber is moved forwardly towards the roller I2 entirely by the action of the roller 9. It is found, however, that the moving shroud l I is better in practice than a stationary shroud.
  • the picker roller I 4, spindles I8 and I9, and the roller I0 all receive motion from a belt I23 which is secured to a pulley on a shaft not shown, which is driven by a motor or other suitable means.
  • Belt I23 as will be seen from Figure 6 after passing round a guide pulley I36, drives a pulley I24 secured to the spindle I25 of the picker roller I4, and also rotates a pulley I31 fixed to a spindle I26 to which is secured a.
  • gear wheel I 21 (see Figure 8) the gear wheel I21 meshing with gears I28 and I29 secured to the spindles I8 and I9 respectively.
  • the belt I23 also drives a pulley I30 secured to a shaft I3I which also carries the picker roller 8 on which shaft is secured a further pulley I32 which is connected by a belt I33 with a pulley I34 on the shaft I35 of the roller I0.
  • a pulley I30 secured to a shaft I3I which also carries the picker roller 8 on which shaft is secured a further pulley I32 which is connected by a belt I33 with a pulley I34 on the shaft I35 of the roller I0.
  • the belt I00 drives a pulley IOI secured to a shaft I02.
  • a gear wheel I03 With which meshes a gear wheel I04 secured to a spindle I05:
  • gear wheel I06 which meshes with a gear wheel 101 secured to a spindle I08, and to the spindle I08 there is secured a gear wheel I09 which meshes with a gear wheel IIO secured to a shaft III.
  • shaft III there is secured a further gear wheel I I2 which meshes with a gear wheel I I3 secured to the shaft II4 of the carded combing roller 3.
  • the four gears at the rear are indicated by vertical shading.
  • the shaft II4 of the combing roller carries a sprocket I65 which is connected by a chain I66 to another sprocket I61 fixed on the shaft of the feeding roller 2 and said roller is thereby rotated at the proper speed.
  • Another link Ill attached to the connecting rod at point Ill is attached at its other end to a short crank or lever Ill.
  • the latter is .fixed at its other end to the spindle Ill which supports the raking device 4 which is therefore oscillated at regular intervals to rake and trim the roll of tobacco.
  • the shroud II is replaced by a plurality of juxtaposed rollers 20, the axes of rotation of the rollers being disposed on a line substantially parallel with the periphery of the roller 9 with or without the slight convergence towards the exit mentioned in connection with the shroud II.
  • the longitudinal axes of the rollers are parallel with the surface of the roller 9.
  • the rollers 20 are rotated in the direction indicated in Figure 3, but the surface speed of the rollers 20 is less than the surface speed of the roller 9 and greater than that of the roller I2.
  • Side walls 40' are provided and operate in the manner previously described with reference to Figure 2.
  • a plate ll is provided between the rollers 28 and I2 respectively if it is found that the gap between the rollers is so large as to adversely affect the packing of the tobacco within the restricted space inside the chamber.
  • the carpet is built up endwise within the'chamber or passage in the manner previously described, and the carpet is fed forwardly towards the roller I2 by the action of the rollers l and N, and'tobacco is taken away by the roller I2 from the leading end of the carpet as in the previous example.
  • the-shroud is constituted byanendlessbandII orbyaphlralityofendless bandsandthesurfacespeedofthebandorbands islessthantheperipheralspeedofthesmooth band ll but greater than that of the roller I2.
  • thisexamplathetobaccmaswillbeseenfroni the drawings is showered onto an endless band ll having a non-carded surface and reinforcing platesliandflareprovlded.
  • a plate ll is protively, a series of juxtaposed rollers could be ar-" ranged to form the top wall of the control chamber.
  • the height of-the moving surface of the shroud above the smooth roller or the endless band is equal to the thickness of carpet desired, but in the construction shown in Figures 1 and 2 where the height of the shroud II continuously varies, the thickness of the carpet will be equal to the distance of the shroud from the roller 9 when those two are nearest to one another.
  • the opposed walls of the chambers may, if desired, diverge slightly from the inlet end towards the outlet instead of being exactly parallel or slightly convergent.
  • the side walls 40 may be given, if desired, a greater degree of divergence or convergence since they are a considerable distance apart and only act on the tobacco at the extreme edges of the carpet, which, as is well known, may be of considerable width.
  • the height of the shroud above the smooth roller or conveyor may be adjustable either manually or automatically to prevent the length of the endwise built carpet becoming either too small or too big. If the length (considered in the direction of movement) of the endwise built carpet becomes too small there is a danger of it being taken away wholly by the carded roller I2. On the other hand, if the length of the carpet becomes too great, there will be a danger of a large accumulation of tobacco at the entrance of the shroud, whereby the feed will become choked.
  • the speed of the moving surfaces may be altered to take more or less tobacco to the carded roller I2, or again, the quantity of tobacco fed to the smooth roller l or smooth belt 90, may be varied in any suitable way. Any two or more of these adjustments may be made simultaneously either manually or automatically.
  • the roller or belt as the case may be, in any of 'the alternative constructions, may be given a surface speed such that the tobacco showered from the picker 8 is formed into a carpet on the surface of the roller 9 or belt 90 in the usual manner, that is, the manner customary when the tobacco is showered on to a carded surface.
  • the tobacco carpet so formed is passed beneath the-compression roller I0 and into the chamber or passage previously described, and its forward movement is impeded by the roller I2 as above described.
  • the roller I! has a slower peripheral speed than that of the smooth roller 9 or belt 90, and the carpet is therefore fed into the chamber or passage with a greater velocity than that at which it is removed from the chamberor passage by the roller H.
  • the carpet is in this way packed or gathered in its direction of movement, and has when it is removed from the chamber by the slower moving carded roller l2, a more uniform density than have tobacco carpets formed in the usual well known manner.
  • the roller I2 constitutes a resistance or impediment to the forward movement of the carpet at its original velocity, so that the tobacco is gathered lengthwise of the carpet, and the densityof the sparsely filled portions of the carpet is raised.
  • the surface of the roller 9 or the belt 90 will have to be sufllciently rough so that at the speed of movement of the surface there will be a sufiicient impelling force exerted on the tobacco to carry it forward, but at the same time it should be appreciated that the surface should be sufliciently smooth to allow it to slip when the tobacco has been packed to a sufiicient density between the shroud and the moving surface.
  • the tobacco is formed as a carpet on the roller 9 before being gathered in the chamber, it will be appreciated that the resulting carpet will not be as good as in the case where the carpet is built up by endwise impact of the tobacco shreds in the chamber, but by gathering the carpet an improved result is obtained, since the gathering of the tobacco will help to reduce the inequalities in the carpet.
  • a method of forming a tobacco carpet which comprises the steps of showering tobacco particles downwardly, intercepting the showered particles and conveying the same laterally at a rate suflicient to form a stream having a depth much less than that desired in the completely formed carpet, and retarding the movement of the stream to cause the trailing particles to impact on the leading particles while confining the stream against appreciable lateral expansion, the extent of retardation of the stream being sufiicient to build up a tobacco carpet of the desired depth.
  • a method of forming a tobacco carpet which comprises the steps of showering tobacco particles downwardly, intercepting the showered particles and conveying the same laterally at a rate suflicient to form a stream having substantially no built-up depth resulting from superpositioning of particles, and retarding the movement of the stream to cause the trailing particles to impact on the leading particles while confining the stream against appreciable lateral expansion, the extent of retardation of the stream being sufficient to build up a tobacco carpet of the desired depth.
  • the combination with'means for showering tobacco particles downwardly, of a conveyor receiving the showered particles and feeding the same transversely of the shower in a stream, the rate of movement of said conveyor being so controlled with respect to the density of the shower as to fonn a stream of substantially less depth than that desired in the completed carpet, means retarding the movement of the conveyed stream, means adjacent the point of retardation of the stream to confine the same laterally, and means disposed above said stream and supported for movement toward or away from the same during operation of the apparatus for determining and regulating the depth of the carpet, whereby the impact of the more rapidly moving particles on the retarded particles will effect compacting thereof to build up the depth of the stream to that required for the completed carpet.
  • a conveyor having a surface to receive said particles and feed them forwardly as a stream, means retarding the movement of the conveyed stream, and means adjacent the point of retardation of the stream to confine the tobacco laterally, a part at least of said means presenting a surface opposed to that of the conveyor to control the thickness of the carpet, whereby the impact of the more rapidly moving particles on the retarded particles will compact the stream and increase the mass thereof, said conveyor having movement relative to said surface opposed to the surface of the conveyor.
  • a conveyor for forming a tobacco carpet
  • said conveyor comprising a rotatable drum having a tobacco receiving peripheral surface, means retarding the movement of the conveyed stream, and means adjacent the point of retardation of the stream to confine the tobacco laterally, a part at least of said means presenting a surface opposed to that of the conveyor to control the thickness of the carpet, whereby the impact of the more rapidly moving particles on the retarded particles will compact the stream and increase the mass thereof.
  • said conveyor having movement relative to said surface opposed to the surface of the conveyor.
  • apparatus for forming a tobacco carpet the combination with means to feedtobacco particles, of a conveyor to receive said particles and .feed them forwardly as a stream, said conveyor comprising a rotatabledrum having a tobacco receiving peripheral surface, means retarding the movement of the conveyed stream.
  • said means and the conveyor surface forming a passage through which the stream is fed, said passage being of sufficient length to extend on either side of the point of compacting of the stream as measured in the di rection of movement thereof, said conveyor surface having movement relative to said opposed surface of the passage.
  • said conveyor surface having movement relative to said surface opposed to the surface of the conveyor.
  • apparatus for forming a tobacco carpet the combination with means for showering tobacco particles downwardly, of a conveyor having a surface for receiving the showered particles and for feeding the same transversely of the shower in a stream, said conveyor comprising a rotatable drum having 'a tobacco receiving peripheral surface, the rate of movement of said conveyor surface being so controlled with respect to the density of the shower as to form a stream of substantially less depth than that desired in the completed carpet, means retarding the movement of the conveyed stream, and means adjacent the point of retardation of the stream to confine the" 24.
  • the combination of opposed elements arranged to 8880 opposite sides of a tobacco stream one of said elements comprising a conveyor to feed the tobacco forwardly, and one at least of said elements being movable towards and away from the opposed element during operation of the apparatus, and means to retard the movement of the tobacco when passing between the opposed elements whereby the stream is subjected to end-- wise compacting to form a tobacco carpet.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Cleaning In General (AREA)
US28348A 1934-07-20 1935-06-25 Method of and apparatus for feeding tobacco to cigarette-making or tobacco-packaging machines Expired - Lifetime US2149925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21297/34A GB441402A (en) 1934-07-20 1934-07-20 An improved method of and apparatus for feeding tobacco to cigarette making or tobacco packaging machines

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US2149925A true US2149925A (en) 1939-03-07

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US28348A Expired - Lifetime US2149925A (en) 1934-07-20 1935-06-25 Method of and apparatus for feeding tobacco to cigarette-making or tobacco-packaging machines

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US (1) US2149925A (enMihai)
BE (1) BE410486A (enMihai)
DE (1) DE651025C (enMihai)
FR (1) FR791426A (enMihai)
GB (1) GB441402A (enMihai)
NL (1) NL42543C (enMihai)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488844A (en) * 1943-02-19 1949-11-22 American Mach & Foundry Cigarette tobacco feed
US2585572A (en) * 1945-08-28 1952-02-12 Molins Machine Co Ltd Tobacco feeding device with suction devices
US2656840A (en) * 1949-07-09 1953-10-27 Skoda Works Tobacco spreader for cigarette making machines
US3028866A (en) * 1957-01-04 1962-04-10 Molins Machine Co Ltd Machines for manipulating cut tobacco
US3844295A (en) * 1971-07-06 1974-10-29 Hauni Werke Koerber & Co Kg Method and apparatus for forming a tobacco stream

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE435175A (enMihai) * 1938-07-14
DE1110069B (de) * 1957-03-22 1961-06-29 Decoufle Usines Tabakausbreiter fuer Zigarettenstrang-maschinen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488844A (en) * 1943-02-19 1949-11-22 American Mach & Foundry Cigarette tobacco feed
US2585572A (en) * 1945-08-28 1952-02-12 Molins Machine Co Ltd Tobacco feeding device with suction devices
US2656840A (en) * 1949-07-09 1953-10-27 Skoda Works Tobacco spreader for cigarette making machines
US3028866A (en) * 1957-01-04 1962-04-10 Molins Machine Co Ltd Machines for manipulating cut tobacco
US3844295A (en) * 1971-07-06 1974-10-29 Hauni Werke Koerber & Co Kg Method and apparatus for forming a tobacco stream

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Publication number Publication date
NL42543C (enMihai)
BE410486A (enMihai)
FR791426A (fr) 1935-12-11
GB441402A (en) 1936-01-20
DE651025C (de) 1937-10-06

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