US2745413A - Machines for producing cigarettes - Google Patents

Machines for producing cigarettes Download PDF

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Publication number
US2745413A
US2745413A US243396A US24339651A US2745413A US 2745413 A US2745413 A US 2745413A US 243396 A US243396 A US 243396A US 24339651 A US24339651 A US 24339651A US 2745413 A US2745413 A US 2745413A
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US
United States
Prior art keywords
belt
disc
conveyor belt
tobacco
groove
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
US243396A
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English (en)
Inventor
Korber Kurt
Kochalski Horst
Flocke Alexander
Heuer Walter
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.)
Kurt Korber & Co Kommandit Ges
Kurt Korber & Co Kommandit-Gesellschaft
Original Assignee
Kurt Korber & Co Kommandit Ges
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.)
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Publication date
Application filed by Kurt Korber & Co Kommandit Ges filed Critical Kurt Korber & Co Kommandit Ges
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Publication of US2745413A publication Critical patent/US2745413A/en
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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 improvements in machines for producing cigarettes and particularly to a machine for producing a continuous tobacco rod, in which a stream of tobacco from a so-called spreader is transported by means of a conveyor belt to a cigarette rod-former, the direction of travel of the belt being reversed while the tobacco rod is produced.
  • This reversal of the belt is effected in the known manner by means of a disc, onehalf of the periphery of which is surrounded by the upper run of the endless belt.
  • the tobacco stream is introduced to the disc from below, so that the tobacco stream lies between the disc periphery and the conveyor belt.
  • the periphery of the disc has a groove-like channel along the base of which the cigarette paper is introduced.
  • the conventional feeder belt includes an arrangement producing a longitudinal groove-like depression and places the two longitudinal edges of the belt on the paper edges so that they remain free of tobacco.
  • the feeder belt is subjected to undue stresses at the reversing rollers because of its profiled section and is subjected to excessive wear.
  • Another conventional apparatus provides a nongrooved drum and a profiled tobacco feed belt, causing the same difiiculties.
  • Fig. 1 is a diagrammatic representation of a tobaccorod forming machine in which the conveyor belt is introduced from below and having its outlet at the top;
  • Fig. 2 is a diagrammatic illustration of a similar machine in which, besides the outer conveyor belt, a second endless conveyor belt is provided which is placed under the cigarette paper;
  • Fig. 3 is a section on line IIII]1 in Fig. 1;
  • Fig. 4 is a section on line IV-IV of Fig. 1;
  • Fig. 5 is a partial section on line V-V of Fig. 1;
  • Figs. 6 to 13 show modified arrangements for folding the conveyor band, also in section on line V-V of Fig. 1;
  • Figs. 14 to 16 are sections on line X[VXIV of Fig. 1;
  • Fig. 17 is a section on line XVIIXVII of Fig. 1;
  • Fig. 18 is a section on line XVIII-XVIII of Fig. 2.
  • Numeral 1 indicates a feeder disc which is journalled on the horizontal shaft 2.
  • the conveyor belt for the tobacco is indicated at 3.
  • the lower run of the conveyor belt extends from the point 4 where the tobacco (not shown) is supplied through a passage 5, which is described later, and through a belt guide channel 6, to the disc 1 which reverses the direction of the belt, the latter extending about halfway around the disc and traveling back to the point 4 over the return rollers 7, 8 and 9.
  • the cigarette paper 10 is introduced between the tobacco rod and the periphery of the disc 1, the paper running off a reel 1012. While the conveyor belt 3 is returned from the reversal roller 7 the paper strip 10 together with the tobacco rod lying thereon moves on a support or guide means 17 to the former 11 in which it is folded around the tobacco in known manner to form the cigarette rod.
  • the machine according to Fig. 2 differs from the machine shown in Fig. 1 by the provision of a second endless conveyor belt 12 which extends around the disc 1 below the paper web 10 and serves for better transport of the paper strip and which, on leaving the top of the feeder disc, is conducted beyond the reversal point of the conveyor belt 3 through the former 11. Below this belt 12 rollers 13 or other supports are provided at the outlet of the disc 1.
  • the passage 5 has a V- or U- shaped section which is clearly shown in Fig. 3.
  • the endless conveyor belt 3 runs through this passage 5, is folded inwardly to conform to the passage groove and at point 4 (Fig. l) the tobacco T is supplied.
  • the tobacco T and the conveyor 3 proceed on further transport means to a belt guide 6, the section of which is shown in Fig. 4. Since the upper surfaces of this guide 6 are convexly curved and its guide groove is less deep than the groove in body 5, the marginal portions 3a of the conveyor belt are laid laterally onto the upper surfaces of the guide by the action of the belt tension.
  • Figs. 6 and 7 show, for example, that the groove 1a in the disc 1 can be omitted whereby the support for the paper band 10 can be made either- 3 flat (Fig.6) or slightly curvedtFig. 7). Also in these cases, the conveyor belt folds itself automatically in the wave-like manner shown, whereby the tobacco rod T is held andat-both sides thereof tobacco-freezones a of the paper strip 10 are formed.
  • the belt 3 retains its folded shape, since two lateral marginal portions of the conveyor belt are pressed against the disc 1, because of the tension in the belt.
  • the lateral edges of the conveyor belt 3 press against recesses 1b of the disc 1 and so facilitate the desired wave-like folding of the conveyor belt 3, Fig. 8 showing a straight and Fig. .9 a slightly curved support for the paper strip 10.
  • guide strips 14 or the like may be provided at the transfer points.
  • FIGs. 8 and 9 there is also shown an essentially concave sectional form of the spool-like surface of the disc 1 in which the peripheral surface 1 may be straight,
  • Fig. 8 shows that the spool-like surface of the disc 1 may also have a convex sectional form whose side surfaces 1 may be fiat or curved.
  • Holding means may be provided for supporting the lateral belt portions As shown in Figs. 12 and 13, rib-like projections 1c and recesses 13 may be provided on the periphery of the disc 1 for guiding the side edges of the conveyor belt 3.
  • All the examples described serve for the novel wavelike folding of the conveyor belt 3 for producing the tobacco roll T during travel of the belt on the periphery of the disc and for retaining the folded condition of the belt.
  • correspondingly profiled rollers 16 and 7 (Fig. 1) are provided by which the fold formation of the conveyor belt is retained to a sufficient extent until the'tobacco stream has left the conveyor belt 3 prior to entering the former 11.
  • the conveyor belt 3 can be returned by the reverser roller 7 directly or over a second roller 8 to the reverser rollers 9.
  • Three constructional forms of the profile rollers 16 are shown in Figs. l4, l5 and 16.
  • the roller 16 has an essentially spherical form and according to Fig. 14 is provided with inclined parts 16a which can be made conical or cylindrical. In the center of the periphery a groove 16b is provided for receiving the bottom of the central wave 317 and the tobacco roll T.
  • the conveyor belt 3 a recess lod'is provided preventing shifting of the belt 3 from the groove 16b.
  • this recess is omitted.
  • the paper strip 10 runs lengthwise below the conveyor belt 3 and beneath the tobacco roll T in each case, for example, in a rectangular groove 16 of a guide support.
  • Fig. 17 shows the reversal roller 7 (Fig. 1) which lies immediately in front of the former H and initiates the return of the conveyor belt 3.
  • This roller is curved on its outer surface and may also incorporate a groove '7' which, however, is more shallow than that of the roller 16 and deeper than that of the succeeding roller 8. It is recommended that, at the point at which the conveyor belt 3 moves out of the horizontal direction, a scraper 2% or a roller is provided which strips off any tobacco adhering to the belt 3.
  • the belt 3 running from the roller 8 finally reaches the first of the return rollers 9 which are essentially cylindrical.
  • the conveyor belt is gradually straightened to fit the flat return path, retaining the wavelike configuration sufficiently long to form the cigarette rod without the use of a so-called bridge piece between the conveyor belt 3 and the former 11. Even if the paper strip 10 carrying the tobacco to the former -11 'is'missing, a regular travel of the tobacco rod remains possible.
  • the second endless belt 12 mentioned above (see Fig. 2), which is conducted through the former 11 and which may be supported by means of rollers 13 or the like after leaving the disc 1.
  • a cigarette tobacco rod forming machine comprising an endless conveyor belt, means for bending the moving belt to form a longitudinal groove in its middle portion for receiving tobacco and to form longitudinal lateral marginal belt portions extending laterally outwardly from the groove, a conveyor disc having a horizontal axis and a circumferential surface portion receiving the bent belt at the bottom of said disc with the groove opening toward the disc, said belt being adjacent to and following substantiallyone half of the circumferential portion of said disc, means for continuously introducing cigarette paper web between said belt and the bottom of said disc, the
  • a cigarette tobacco rod forming machine comprising an additional endless belt extending around said disc between the cigarette paper web and the circumferential surface portion of said disc.
  • a cigarette tobacco rod forming machine having a central circumferential recess adapted to receive the cigarette paper web and having circumferential guide surface portions on either side of said recess for guiding the lateral marginal belt portions.
  • a cigarette tobacco rod forming machine comprising stationary guide means positioned adjacent to said circumferential-surface portion for guiding the lateral marginal belt portions to said guide surface portion.
  • a cigarette tobacco rod forming machine comprising an endless conveyor belt, means for longitudinally bending the moving conveyor belt to form a longitudinal groove in its middle portion for receiving tobacco and longitudinal lateral marginal belt portions ext-ending outwardly from the groove, a conveyor disc having a circumferential surface portion receiving the bent belt with the belt portion having a groove opening toward the disc, means for continuously introducing cigarette paper web between said belt and said disc to be pressed toward said circumferential surface portion by said belt, and guide means receiving said belt and the paper web covering the tobacco filled portion of said belt having a longitudinal groove from said disc, said guide means comprising means for pressing the longitudinal lateral marginal belt portions to the lateral marginal portions of the cigarette paper web.
  • said means for longitudinally bending the conveyor belt comprising a stationary guide member having a longitudinal convex surface portion with a longitudinal groove in its longitudinal center for slidingly supporting the bent moving conveyor belt, said guide member having an end surface portion tangent to said disc, the circumferential surface portion of the latter having a concave configuration substantially conforming with the convex surface portion of said guide member, said guide means comprising a stationary guide member having a longitudinal surface portion facing the paper web coming from said disc, and said means for pressing the longitudinal lateral marginal belt portions to.
  • the cigarette paper web consisting of at least one barrel shaped roller having a circumferential recess adapted to receive the groove forming longitudinal middle portion of said belt.
  • said means for longitudinally bending the conveyor belt comprising a stationary guide member having a longitudinal convex surface portion with a longitudinal groove in its longitudinal center for slidingly supporting the bent moving conveyor belt, said guide member having an end surface portion tangent to said disc, the circumferential surface portion of the latter having an axially concave configuration substantially conforming with the convex surface portion of said guide member, said guide means comprising a stationary guide member having a longitudinal surface portion facing the paper web coming from said disc, and said means for pressing the longitudinal lateral marginal belt portions to the cigarette paper web comprising a barrel shaped guide roller having a circumferential recess adapted to receive the groove forming the longitudinal middle portion of said belt and having circumferential projections on either side of said recess, said guide means comprising at least one barrel shaped roller receiving said belt as it comes from said guide roller, and said machine comprising a plu rality of additional rollers guiding said belt back to said means for longitudinally bending the belt.
  • a cigarette tobacco rod forming machine according to claim 7, the first of said additional guide rollers to receive said belt being barrel shaped.
  • a cigarette tobacco rod forming machine according to claim 7, at least some of said barrel shaped rollers comprising circumferential guide means for laterally guiding said belt.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
US243396A 1951-02-12 1951-08-24 Machines for producing cigarettes Expired - Lifetime US2745413A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK0008971 1951-02-12

Publications (1)

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US2745413A true US2745413A (en) 1956-05-15

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US243396A Expired - Lifetime US2745413A (en) 1951-02-12 1951-08-24 Machines for producing cigarettes

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US (1) US2745413A (he)
DE (1) DE896618C (he)
NL (1) NL184434A (he)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911980A (en) * 1957-05-22 1959-11-10 Hauni Werke Koerber & Co Kg Machines for producing a continuous rod of fibrous material
US2949918A (en) * 1956-07-26 1960-08-23 Koerber & Co Kg Cigarette rod making machines

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2251518A (en) * 1938-04-08 1941-08-05 J C Muller N V Belt guide for cigarette machines
US2357860A (en) * 1944-09-12 Cigarette detecting and correcting
US2432938A (en) * 1941-07-30 1947-12-16 Molins Machine Co Ltd Rod forming mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2357860A (en) * 1944-09-12 Cigarette detecting and correcting
US2251518A (en) * 1938-04-08 1941-08-05 J C Muller N V Belt guide for cigarette machines
US2432938A (en) * 1941-07-30 1947-12-16 Molins Machine Co Ltd Rod forming mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949918A (en) * 1956-07-26 1960-08-23 Koerber & Co Kg Cigarette rod making machines
US2911980A (en) * 1957-05-22 1959-11-10 Hauni Werke Koerber & Co Kg Machines for producing a continuous rod of fibrous material

Also Published As

Publication number Publication date
DE896618C (de) 1954-10-11
NL184434A (he) 1956-05-15

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