EP1703811B1 - Unite tranchante pour decouper des boudins de cigarette - Google Patents

Unite tranchante pour decouper des boudins de cigarette Download PDF

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Publication number
EP1703811B1
EP1703811B1 EP04818833A EP04818833A EP1703811B1 EP 1703811 B1 EP1703811 B1 EP 1703811B1 EP 04818833 A EP04818833 A EP 04818833A EP 04818833 A EP04818833 A EP 04818833A EP 1703811 B1 EP1703811 B1 EP 1703811B1
Authority
EP
European Patent Office
Prior art keywords
cutting
axis
supporting body
cutting unit
cutting head
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.)
Revoked
Application number
EP04818833A
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German (de)
English (en)
Other versions
EP1703811A1 (fr
Inventor
Fiorenzo Draghetti
Emanuele Seren
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
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GD SpA
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Filing date
Publication date
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Application filed by GD SpA filed Critical GD SpA
Publication of EP1703811A1 publication Critical patent/EP1703811A1/fr
Application granted granted Critical
Publication of EP1703811B1 publication Critical patent/EP1703811B1/fr
Revoked legal-status Critical Current
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
    • A24C5/28—Cutting-off the tobacco rod

Definitions

  • the present invention relates to a cutting unit for cutting continuous cigarette rods.
  • cigarette manufacturing machines which produce and feed at least one continuous cigarette rod axially, in a generally horizontal direction, to a counter-cutting device which cuts the continuous rod into a succession of cigarette portions of given length.
  • the continuous rod is normally cut using a cutting head of the type described, for example, in GB-2089187 , which comprises a cutting drum having a number of substantially radial blades, and rotating about an axis (normally horizontal and at any rate parallel to a plane defined by the continuous rods when dealing with more than one rod) forming, with the travelling direction of the continuous rod, an angle whose size depends on the length of the desired cigarette portions.
  • the size of the angle must be adjustable to permit changes in format, i.e. in the length of the cigarette portions, and ensure the line of interference between each blade and the continuous rod moves, during the cutting operation, at the same speed as the continuous rod, so that the cut is perfectly crosswise to the axis of the continuous rod at all times.
  • the cutting head is mounted to rotate, with respect to a support, about an adjustment axis through the counter-cutting device, perpendicular to the axis of rotation of the cutting drum, and crosswise to the travelling direction of the continuous rod, and can be locked releasably in any desired angular position about the adjustment axis.
  • a cutting unit for cutting continuous cigarette rods as claimed in Claim 1 and, preferably, in any one of the following Claims depending directly or indirectly on Claim 1.
  • Number 1 in Figures 1 and 2 indicates as a whole a cutting unit for cutting cigarette portions 2 of given length from two parallel continuous cigarette rods 3 produced on a known dual-rod manufacturing machine (not shown) supporting cutting unit 1.
  • continuous rods 3 are fed simultaneously at a given speed to a counter-cutting device 4 forming part of cutting unit 1 and defined in known manner by two sleeves 5, which move back and forth in a travelling direction 6 of continuous rods 3, and have respective slits 7 lying in the same plane, crosswise to direction 6, and engaged successively by a known blade 8 of cutting unit 1.
  • cutting unit 1 also comprises a supporting body 9, which, by means of a lateral connecting plate 10, is connected integrally to a fixed frame (not shown) of the manufacturing machine (not shown), projects from said frame (not shown), and is bounded at the top by a horizontal plate 11 supporting a known cutting head 12.
  • cutting head 12 comprises a casing 13 having a base plate 14 fitted to plate 11; and a cutting drum 15 projecting laterally from casing 13, and fitted to casing 13 to rotate, anticlockwise in Figure 1 , about an axis 16 by means of a shaft 17 housed inside casing 13 and driven by a main motor (not shown) of the manufacturing machine (not shown).
  • cutting drum 15 supports a number of cylindrical, substantially radial cores 18 (only one shown in Figure 1 ), which are adjustable angularly about respective axes 19, and are fitted on their respective outer ends with respective known, substantially radial blades 8.
  • cutting head 12 is fitted to supporting body 9 to rotate, with respect to supporting body 9, about an adjustment axis 20 ( Figure 1 ) through counter-cutting device 4 and perpendicular to the mating plane of base plate 14 and plate 11, to the travelling direction 6 of continuous rods 3, and to a plane defined by continuous rods 3.
  • cutting unit 1 comprises a guide device 21 for guiding cutting head 12 about adjustment axis 20; an actuating device 22 for moving cutting head 12 about adjustment axis 20 with respect to supporting body 9; a detecting device 23 for determining the instantaneous angular position of cutting head 12 about adjustment axis 20, to permit negative feedback control of actuating device 22; and a releasable locking device 24 for locking cutting head 12, with respect to supporting body 9, in any desired angular position about adjustment axis 20.
  • guide device 21 comprises a rib 25 projecting upwards from plate 11 and extending, on plate 11, along an arc coaxial with adjustment axis 20; and a slot 26 formed through base plate 14, extending along an arc coaxial with adjustment axis 20 and of the same radius as the arc of rib 25, and engaged in sliding manner by rib 25.
  • actuating device 22 comprises a motor reducer 27 fitted to supporting body 9, beneath plate 11, and comprising an output shaft 28, which is perpendicular to plate 11, extends in rotary manner ( Figure 3 ) through a sleeve 29 integral with supporting body 9, and through a hole (not shown) formed through plate 11, extends inside casing 13 through an opening 30 formed through base plate 14, and is fitted, above base plate 14 and inside casing 13, with a pinion 31 which meshes with the outer teeth of a ring gear 32 integral with casing 13 and coaxial with adjustment axis 20.
  • detecting device 23 comprises a scale 33 printed on a curved lateral surface 34, coaxial with adjustment axis 20, of base plate 14; and an optical reader 35, preferably a laser reader, positioned radially with respect to lateral surface 34, and for determining, on scale 33, the angular position, with respect to an origin, of cutting head 12 about adjustment axis 20, so as to negative-feedback-control motor reducer 27.
  • Detecting device 23 as described above may obviously be replaced by any equivalent device, e.g. a straightforward encoder (not shown) fitted to shaft 28.
  • locking device 24 comprises two pairs of pins 36 (theoretically, even only one pin 36 is sufficient), each of which is fitted in axially sliding manner through a relative hole 37 formed through plate 11, and has an end plate 38 above plate 11.
  • the portions of pins 36 projecting above plate 11 engage and slide transversely inside a T-section groove 39, which opens at one end at a lateral edge of base plate 14, and comprises ( Figure 3 ) two end portions 40a, 40b connected to each other, and each of which is engaged by a respective pin 36 and extends along a respective arc coaxial with adjustment axis 20.
  • Each groove 39 comprises a rectangular-section channel 41 engaged in sliding manner by end plates 38 of relative pins 36; and a slot 42, which extends centrally along relative channel 41, is engaged in transversely sliding manner by respective top end portions of relative pins 36, and defines, beneath channel 41, two shoulders 43 extending along and on opposite sides of slot 42, and between relative end plates 38 and plate 11.
  • each pin 36 comprises a threaded portion 44 fitted with a ring nut 45 for preloading a pack of disk springs 46 interposed between ring nut 45 and a bottom surface of plate 11 to draw end plates 38 downwards and grip relative shoulders 43 against plate 11 to normally keep cutting head 12 locked contacting supporting body 9.
  • each pin 36 projects from the bottom of relative ring nut 45 to define a tappet 47 cooperating with a cam-type release device 48, which forms part of locking device 24, is common to all of pins 36, and, when activated, opposes the locking action of disk springs 46 on relative pins 36 to allow cutting head 12 to move about adjustment axis 20 under the control of motor reducer 27.
  • release device 48 comprises, for each pin 36, a U-shaped bracket 49, which is located beneath plate 11 with its concavity facing upwards, is connected integrally to plate 11, and houses the portion of relative pin 36 projecting beneath plate 11.
  • Brackets 49 of two pins 36 in the same pair of pins 36 support for rotation respective opposite ends of a rod 50 extending crosswise to relative pins 36 and fitted with two cams 51, each of which cooperates with a respective tappet 47 to lift relative pin 36 and release cutting head 12 with respect to supporting body 9, when rod 50 is set to a given angular work position about its own axis 52.
  • rods 50 are rotated, about respective axes 52, between said relative angular work positions and relative angular rest positions by a linear actuator 53 ( Figure 2 ), an output rod 54 of which extends crosswise to rods 50 and is hinged to an intermediate point of a crank 55 fitted to one of rods 50 and forming part of an articulated quadrilateral 56, a further crank 55 of which is fitted to the other rod 50 and connected to the other crank 55 by a connecting rod 57.
  • a linear actuator 53 Figure 2
  • cutting unit 1 Operation of cutting unit 1 is clear from the foregoing description, with no further explanation required. Suffice it to say that, to change format, the new format data is sent to a central control unit 58, which (though not shown graphically in Figure 2 for the sake of simplicity) activates linear actuator 53 to release cutting head 12 with respect to supporting body 9, and then activates motor reducer 27 to rotate cutting head 12 as required about adjustment axis 20 and under negative feedback control of optical reader 35.
  • central control unit 58 automatically deactivates motor reducer 27, and reactivates linear actuator 53 to lock cutting head 12 to supporting body 9 in the new angular position about adjustment axis 20.

Landscapes

  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Sawing (AREA)

Claims (13)

  1. Unité de coupe pour découper des boudins de cigarette continus avancés dans une direction de déplacement (6) donnée, l'unité de coupe (1) comprenant un corps de support (9) ; une tête de coupe (12) montée sur le corps de support (9) pour tourner autour d'un premier axe (20), la tête de coupe (12) comprenant un tambour de coupe (15), qui tourne autour d'un deuxième axe (16) formant un angle donné avec ladite direction de déplacement (6), et comporte au moins une lame radiale (8) ; un dispositif de contre-coupe (4), avec lequel au moins un desdits boudins de cigarette continu (3) vient en prise, et à travers lequel ledit premier axe (20) s'étend ; et des moyens de verrouillage (24) pour verrouiller angulairement la tête de coupe (12) en position sur ledit corps de support (9) ; et étant caractérisée en ce que lesdits moyens de verrouillage (24) comprennent des moyens de libération automatique (48) pour libérer la tête de coupe (12) par rapport au corps de support (9) ; des moyens d'actionnement (27, 31, 32) étant interposés entre le corps de support (9) et la tête de coupe (12) pour faire tourner la tête de coupe (12) autour dudit premier axe (20) pour modifier ledit angle.
  2. Unité de coupe selon la revendication 1, et comprenant également des moyens formant capteur (23) pour déterminer ledit angle et pour commander par contre-rétroaction lesdits moyens d'actionnement (27, 31, 32).
  3. Unité de coupe selon la revendication 2, dans laquelle lesdits moyens formant capteur (23) comprennent une graduation (33) située sur ladite tête de coupe (12) ; et un lecteur optique (35) fixe pour déterminer ledit angle sur ladite échelle (33).
  4. Unité de coupe selon la revendication 3, dans laquelle ladite tête de coupe (12) comprend une surface latérale incurvée (34) coaxiale avec ledit premier axe (20) ; ladite surface latérale incurvée (34) supportant ladite graduation (33) ; et ledit lecteur optique (35) faisant face à ladite graduation et étant positionné radialement par rapport audit premier axe (20).
  5. Unité de coupe selon l'une quelconque des revendications 1 à 4, et comprenant également des moyens de guidage (21) interposés entre la tête de coupe (12) et le corps de support (9) pour guider la tête de coupe (12) sur le corps de support (9) pendant la rotation autour dudit premier axe (20).
  6. Unité de coupe selon la revendication 5, dans laquelle lesdits moyens de guidage (21) comprennent une nervure (25), qui fait saillie vers le haut dudit corps de support (9) et s'étend, sur le corps de support (9), le long d'un arc coaxial avec ledit premier axe (20) ; et une fente (26), qui est formée sur ladite tête de coupe (12), s'étend le long d'un arc coaxial avec ledit premier axe (20) et ayant le même rayon que l'arc de ladite nervure (25), et avec laquelle ladite nervure (25) vient en prise de manière coulissante.
  7. Unité de coupe selon l'une quelconque des revendications 1 à 6, dans laquelle lesdits moyens d'actionnement (27, 31, 32) comprennent un réducteur de moteur (27) monté sur ledit corps de support (9) ; un pignon (31) parallèle audit premier axe (20) et activé par ledit réducteur de moteur (27) ; et une couronne dentée (32) coaxiale avec ledit premier axe (20), montée sur ladite tête de coupe (12), et avec laquelle ledit pignon (31) vient en prise.
  8. Unité de coupe selon l'une quelconque des revendications 1 à 7, dans laquelle ledit corps de support (9) et ladite tête de coupe (12) comprennent des première et, respectivement, deuxième plaques (11, 14) en contact l'une avec l'autre ; lesdits moyens de verrouillage (24) comprenant au moins une broche (36) s'étendant de manière coulissante axialement à travers ladite première plaque (11) et montée de manière coulissante transversalement et fixe axialement sur ladite deuxième plaque (14) ; des moyens élastiques (46) étant interposés entre ladite broche (36) et ladite première plaque (11) pour comprimer et verrouiller lesdites première et deuxième plaques (11, 14) l'une contre l'autre.
  9. Unité de coupe selon la revendication 8, dans laquelle ladite broche (36) comporte une partie d'extrémité comprenant une plaque d'extrémité (38) ; ladite deuxième plaque (14) comportant une rainure (39) incurvée avec une section en T coaxiale avec ledit premier axe (20) ; et ladite partie d'extrémité venant en prise avec ladite rainure (39) de manière coulissante transversalement.
  10. Unité de coupe selon la revendication 8 ou 9, dans laquelle lesdits moyens de libération automatique (48) comprennent des moyens de poussée (51) supportés par ledit corps de support (9) et agissant sur ladite broche (36) pour déplacer la broche (36) axialement en opposition auxdits moyens élastiques (46).
  11. Unité de coupe selon la revendication 10, dans laquelle lesdits moyens de poussée (51) sont des moyens formant came agissant axialement sur ladite broche (36).
  12. Unité de coupe selon la revendication 11, dans laquelle lesdits moyens de verrouillage (24) comprennent deux paires desdites broches (36) ; lesdits moyens de libération automatique (48) comprenant, pour chacune desdites paires de broches (36), une tige (50), qui a un troisième axe (52) transversal auxdites broches (36) relatives, et qui est pourvue de deux cames (51), chacune de celles-ci coopérant avec une extrémité (47) de l'une desdites broches (36) respectives, et un dispositif d'actionnement (53, 54, 56) pour faire tourner ladite tige (50) autour dudit troisième axe (52).
  13. Unité de coupe selon la revendication 12, dans laquelle ledit dispositif d'actionnement (53, 54, 56) est commun auxdites tiges (50), et comprend un actionneur linéaire (53) ; et un quadrilatère articulé, comprenant à son tour deux bras de manivelle (55), montés chacun sur une dite tige (50) respective ; ledit actionneur linéaire (53) ayant une sortie (54) connectée à l'un desdits bras de manivelle (55).
EP04818833A 2003-11-19 2004-11-18 Unite tranchante pour decouper des boudins de cigarette Revoked EP1703811B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000692A ITBO20030692A1 (it) 2003-11-19 2003-11-19 Unita' di taglio per bachi continui di sigaretta.
PCT/EP2004/053000 WO2005048746A1 (fr) 2003-11-19 2004-11-18 Unite tranchante pour decouper des boudins de cigarette

Publications (2)

Publication Number Publication Date
EP1703811A1 EP1703811A1 (fr) 2006-09-27
EP1703811B1 true EP1703811B1 (fr) 2009-01-07

Family

ID=34611214

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04818833A Revoked EP1703811B1 (fr) 2003-11-19 2004-11-18 Unite tranchante pour decouper des boudins de cigarette

Country Status (8)

Country Link
US (1) US20070272262A1 (fr)
EP (1) EP1703811B1 (fr)
JP (1) JP4607897B2 (fr)
CN (1) CN100484421C (fr)
AT (1) ATE419761T1 (fr)
DE (1) DE602004018982D1 (fr)
IT (1) ITBO20030692A1 (fr)
WO (1) WO2005048746A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004047265A1 (de) 2004-09-24 2006-04-06 Hauni Maschinenbau Ag Verfahren und Vorrichtung zum Schneiden eines kontinuierlich geführten Strangs in strangförmige Artikel variabler Länge
ITBO20060664A1 (it) 2006-09-28 2006-12-28 Gd Spa Unita' di taglio per almeno un baco continuo
DE102009024933A1 (de) * 2009-06-06 2010-12-09 Hauni Maschinenbau Ag Schneidvorrichtung der Tabak verarbeitenden Industrie zum Schneiden wenigstens eines geförderten Strangs in eine Vielzahl stabförmiger Artikel sowie Verfahren zur Außerbetriebnahme der Schneidvorrichtung
DE102009049656A1 (de) * 2009-10-09 2011-04-14 Hauni Maschinenbau Ag Schneideinrichtung für eine Strangmaschine der Tabak verarbeitenden Industrie
DE102009049657A1 (de) * 2009-10-09 2011-04-14 Hauni Maschinenbau Ag Schneideinrichtung für eine Strangmaschine der Tabak verarbeitenden Industrie und Verfahren zum Verstellen der Schneideinrichtung
ITBO20110237A1 (it) * 2011-04-29 2012-10-30 Gd Spa Testa di taglio di almeno un baco continuo in macchina per la produzione di articoli da fumo.
ITBO20110469A1 (it) * 2011-07-29 2013-01-30 Gd Spa Testa di taglio di almeno un baco continuo di una macchina per la produzione di articoli da fumo
US9179705B2 (en) * 2012-04-18 2015-11-10 Republic Tobacco L.P. Tabletop automatic cigarette-making machine
DE102012210228A1 (de) * 2012-06-18 2013-12-19 Hauni Maschinenbau Ag Vorrichtung zum Trennen eines endlosen zugeführten Stranges eines Produktes der Tabak verarbeitenden Industrie in einzelne Stäbe
EP2679105B1 (fr) * 2012-06-28 2014-12-31 HAUNI Maschinenbau AG Dispositif de coupe pour la séparation de produits de l'industrie de traitement du tabac d'un tronçon sans fin déposé

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GB1175200A (en) * 1966-12-29 1969-12-23 Hauni Werke Koerber & Co Kg Rotating Cutting Device.
US3552251A (en) * 1968-12-03 1971-01-05 Bobst Champlain Inc Rotary slit cutter
US3630126A (en) * 1969-08-18 1971-12-28 Ernest Winston Ronai Apparatus for cutting tubes
FR2198358A5 (fr) * 1972-09-07 1974-03-29 Decoufle Usines
US3782229A (en) * 1972-11-13 1974-01-01 Amf Inc System and device for cutting and reducing rod segments
US4220077A (en) * 1978-03-22 1980-09-02 Owens-Illinois, Inc. Composite can registration
IT1148241B (it) * 1980-12-12 1986-11-26 Gd Spa Dispositivo per il taglio contemporaneo di due bachi continui di sigaretta
JPS60232081A (ja) * 1984-05-02 1985-11-18 日本たばこ産業株式会社 シガレツト切断装置
US4882962A (en) * 1988-08-19 1989-11-28 Emerson Electric Co. Angularly adjustable band saw
US5875698A (en) * 1996-06-17 1999-03-02 Black & Decker Inc. Blade and motor carrier with height/angle adjustment mechanism
GB9615678D0 (en) * 1996-07-25 1996-09-04 Molins Plc Ledger for cigarette making machine cut-off
US6601494B1 (en) * 2000-09-06 2003-08-05 Armstrong-Blum Mfg. Co. Wide sweep tilting mechanism for a band saw
US7191690B2 (en) * 2001-01-10 2007-03-20 Heidelberger Druckmaschinen Ag Helical mechanism cutting unit and method for operating for the same
US7114425B2 (en) * 2002-04-30 2006-10-03 Credo Technology Corporation Fine-adjustment mechanism to preset a miter saw for precision miter cuts
US7201090B2 (en) * 2002-10-16 2007-04-10 Robert Bosch Gmbh Front-accessible bevel locking system

Also Published As

Publication number Publication date
CN1893842A (zh) 2007-01-10
ATE419761T1 (de) 2009-01-15
US20070272262A1 (en) 2007-11-29
JP4607897B2 (ja) 2011-01-05
WO2005048746A1 (fr) 2005-06-02
ITBO20030692A1 (it) 2005-05-20
CN100484421C (zh) 2009-05-06
EP1703811A1 (fr) 2006-09-27
JP2007511235A (ja) 2007-05-10
DE602004018982D1 (de) 2009-02-26

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