EP0513649A1 - Procédé de fabrication d'au moins un courant continu de cigarettes - Google Patents

Procédé de fabrication d'au moins un courant continu de cigarettes Download PDF

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Publication number
EP0513649A1
EP0513649A1 EP92107650A EP92107650A EP0513649A1 EP 0513649 A1 EP0513649 A1 EP 0513649A1 EP 92107650 A EP92107650 A EP 92107650A EP 92107650 A EP92107650 A EP 92107650A EP 0513649 A1 EP0513649 A1 EP 0513649A1
Authority
EP
European Patent Office
Prior art keywords
paper strip
signal
strip
reference marks
cutter
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.)
Withdrawn
Application number
EP92107650A
Other languages
German (de)
English (en)
Inventor
Fiorenzo Draghetti
Bruno Belvederi
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.)
GD SpA
Original Assignee
GD SpA
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 GD SpA filed Critical GD SpA
Publication of EP0513649A1 publication Critical patent/EP0513649A1/fr
Withdrawn legal-status Critical Current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
    • A24C5/28—Cutting-off the tobacco rod
    • 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
    • A24C5/1857—Belt construction or driving means

Definitions

  • the present invention relates to a method of producing at least one continuous stream of cigarettes.
  • a continuous strip of paper is fed on a motor-driven conveyor belt along a bed for forming a continuous cigarette rod, and through a loading station where a stream of shredded tobacco is fed on to the paper strip.
  • a printing device is provided for printing the brand name or trade mark on the strip, at equally-spaced intervals equal to the length of the cigarettes.
  • control means are provided for detecting a shift in the print and, via transmission means, restoring the paper strip to the correct position in relation to the cutter.
  • a method of producing at least one continuous stream of cigarettes comprising the stages of feeding a continuous paper strip, at a predetermined advancement speed, to a transverse cutter through a loading station where a stream of shredded tobacco is fed on to the paper strip, the paper strip bearing a succession of reference marks at equally-spaced intervals equal to the length of the cigarettes being produced; folding the paper strip about the stream of shreadded tobacco to form a continuous cigarette rod upstream from the cutter; and cuting the cigarette rod by means of said cutter; and being characterized in that the paper strip is advanced past a first detector emitting a first signal upon the passage of at least part of said reference marks; and the cutter is associated with a second detector emitting a second signal at each cutting operation; said first and second signals having respective timings; the timing of each second signal being compared with the timing of the corresponding first signal to obtain a third signal proportional to a difference between such timings; and said advancement speed being controlled via a succession of said third signals.
  • the reference marks are formed on the paper strip prior to use on a cigarette manufacturing machine.
  • Numeral 1 in Figure 1 indicates a cigarette manufacturing machine comprising a base 2 supporting a device 3 for feeding a continuous strip 4 of cigarette paper.
  • strip 4 winds about a transmission roller 5 by which it is fed on to a substantially horizontal bed 6 supported in a fixed position on base 2 and in turn supporting the top branch of a conveyor belt 7.
  • strip 4 is fed through a loading station 8 where a continuous stream of shredded tobacco is fed on to it by a suction conveyor belt 9 at the output of a known feed unit 10.
  • strip 4 engages a device for forming a continuous cigarette rod, and consisting of a known beam 11 (not shown in detail) having a curved inner section decreasing gradually so that the final portion is substantially cylindrical. Strip 4 is thus folded transversely in known manner about the shredded tobacco, to form a continuous cigarette rod 12.
  • rod 12 is fed through a known cutter 13 by which it is cut into a continuous stream of cigarettes 14.
  • belt 7 is looped about two transmission rollers 15 and 16 at each end of bed 6, and about drive means comprising a drive roller 17 powered by a drive 18 connected to a known control circuit 18' described later on.
  • strip 4 is marked with graphic reference marks 20 at equally-spaced intervals equal to the length of cigarette 14.
  • a detector 21 is provided for emitting a signal consisting of an electric pulse at the passage of each mark 20.
  • cutter 13 comprises a known detector 22 for emitting an electric pulse, hereinafter referred to as a "machine pulse or signal", at each cutting operation.
  • the pulses emitted by detectors 21 and 22 constitute the inputs of a control circuit 23 comprising a block 24 for quantifying variations in the timing of the two signals in relation to a predetermined value, and emitting a first and second signal respectively indicating the absolute value and plus or minus sign of said variation.
  • preprinted strip 4 Prior to startup of machine 1, the operator so positions preprinted strip 4 as to ensure cigarette rod 12 is cut by cutter 13 a predetermined distance from reference marks 20.
  • quantifying block 24 supplies two output signals of other than zero, respectively indicating the absolute value and plus or minus sign of said variation.
  • drive 18 regulates the speed of roller 17 and, consequently, the traveling speed of strip 4, so as to restore correct timing of the cutting operation in relation to detection of marks 20 by detector 21.
  • marks 20 may be replaced by rows of holes 25 formed in strip 4 for producing so-called "ventilated cigarettes”.
  • the speed of conveyor 7 may, of course, be varied using, in place of pulley 17, a drive means comprising a variable-diameter pulley (not shown), as described for example in U.S. Patent No. 3,630,092, in which case, drive means 18 must be capable of so varying the diameter of the pulley as to vary the speed of conveyor 7 in the required direction.
  • the method according to the present invention may, of course, also be applied to machines designed to simultaneously manufacture more than one cigarette rod, as described for example in U.S. Patent No. 4,336,812.
EP92107650A 1991-05-14 1992-05-06 Procédé de fabrication d'au moins un courant continu de cigarettes Withdrawn EP0513649A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO910159A IT1245905B (it) 1991-05-14 1991-05-14 Metodo per la produzione di almeno un flusso continuo di sigarette.
ITBO910159 1991-05-14

Publications (1)

Publication Number Publication Date
EP0513649A1 true EP0513649A1 (fr) 1992-11-19

Family

ID=11337481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92107650A Withdrawn EP0513649A1 (fr) 1991-05-14 1992-05-06 Procédé de fabrication d'au moins un courant continu de cigarettes

Country Status (4)

Country Link
EP (1) EP0513649A1 (fr)
JP (1) JPH0777551B2 (fr)
CN (1) CN1069176A (fr)
IT (1) IT1245905B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0766928A1 (fr) * 1995-10-06 1997-04-09 G.D. S.p.A. Procédé et dispositif pour la production de bands pour embout filtrant pour des cigarettes ventilées

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW426506B (en) * 1998-08-06 2001-03-21 Japan Tobacco Inc Belt conveyor type compression forming apparatus for tobacco stream
PL239185B1 (pl) * 2017-03-02 2021-11-15 Int Tabacco Machinery Poland Spolka Z Ograniczona Odpowiedzialnoscia Sposób zmniejszania naprężeń w taśmie formatowej na maszynie przemysłu tytoniowego oraz urządzenie formatowe do maszyny przemysłu tytoniowego

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140268A (en) * 1983-05-27 1984-11-28 Gd Spa Improved cigarette manufacturing machinery
GB2167938A (en) * 1984-12-10 1986-06-11 Gd Spa Method for simultaneously producing two continuous streams of cigarettes
DE3638751A1 (de) * 1986-11-13 1988-05-26 Hauni Werke Koerber & Co Kg Verfahren und anordnung zum steuern der foerderung mindestens eines stranges auf einer strangmaschine der tabakverarbeitenden industrie

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140268A (en) * 1983-05-27 1984-11-28 Gd Spa Improved cigarette manufacturing machinery
GB2167938A (en) * 1984-12-10 1986-06-11 Gd Spa Method for simultaneously producing two continuous streams of cigarettes
DE3638751A1 (de) * 1986-11-13 1988-05-26 Hauni Werke Koerber & Co Kg Verfahren und anordnung zum steuern der foerderung mindestens eines stranges auf einer strangmaschine der tabakverarbeitenden industrie

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RESEARCH DISCLOSURE. no. 311, March 1990, EMSWORTH GB pages 208 - 209; ANONYMOUSLY: 'adjustement of the positions of imprints on preimprinted wrapping strips' *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0766928A1 (fr) * 1995-10-06 1997-04-09 G.D. S.p.A. Procédé et dispositif pour la production de bands pour embout filtrant pour des cigarettes ventilées
US5735292A (en) * 1995-10-06 1998-04-07 G.D. S.P.A. Method and device for the production of filter tip bands for ventilated cigarettes

Also Published As

Publication number Publication date
ITBO910159A0 (it) 1991-05-14
ITBO910159A1 (it) 1992-11-14
JPH05130857A (ja) 1993-05-28
IT1245905B (it) 1994-10-25
JPH0777551B2 (ja) 1995-08-23
CN1069176A (zh) 1993-02-24

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