EP0654329B1 - Procédé et dispositif pour le cisaillement d'un matériau en forme de ruban - Google Patents

Procédé et dispositif pour le cisaillement d'un matériau en forme de ruban Download PDF

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Publication number
EP0654329B1
EP0654329B1 EP94118063A EP94118063A EP0654329B1 EP 0654329 B1 EP0654329 B1 EP 0654329B1 EP 94118063 A EP94118063 A EP 94118063A EP 94118063 A EP94118063 A EP 94118063A EP 0654329 B1 EP0654329 B1 EP 0654329B1
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EP
European Patent Office
Prior art keywords
cutting
axis
peripheral surface
strip
cylinder
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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
EP94118063A
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German (de)
English (en)
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EP0654329A1 (fr
Inventor
Fiorenzo Draghetti
Salvatore Rizzoli
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GD SpA
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GD SpA
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
    • 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
    • A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
    • A24C5/471—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces by means of a connecting band
    • A24C5/473—Cutting the connecting band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/42—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and slidably mounted in a rotary member
    • B26D1/425—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and slidably mounted in a rotary member for thin material, e.g. for sheets, strips or the like

Definitions

  • the present invention relates to a method and device for scissor cutting strip material.
  • sinor cutting is intended to mean a cut made by two blades contacting each other at successive points, which contact may be made in two distinct ways depending on whether the planes of the two blades are inclined or parallel to each other.
  • scissor cutting is normally effected by "grazing” of the substantially coplanar cutting edges of the blades which are moved substantially crosswise to their planes.
  • scissor cutting is normally effected by "penetration", the cutting edge of one blade being positioned obliquely in relation to that of the other, and the two blades being moved in relation to each other within the plane.
  • Connecting bands are known to be graze scissor cut from a continuous strip using the device described in US Patent n. 4,943,341 granted to the present Applicant, wherein a strip feed roller presents a number of inclined blades, the cutting edge of each of which is grazed at successive points by the cutting edge of a respective blade on another roller to cut the strip into segments.
  • British Patent Application n. 2,220,878 relates to a penetration scissor cutting device comprising a conveyor roller for feeding a continuous strip to a cutting station and in turn comprising a succession of peripheral suction sectors separated by grooves extending along respective generating lines of the roller.
  • Each of the grooves presents a cutting edge and is gradually engaged, in the region of the cutting station, by the oblique cutting end of an outer blade positioned substantially radially on a cutting roller parallel to and rotating in the opposite direction and in time with the conveyor roller.
  • each outer blade as it penetrates inside the respective groove, draws part of the strip with it inside the groove and is inevitably soiled with gum which, despite the provision of cleaning assemblies contacting the outer blades clear of the cutting station, may result in frequent stoppage of the filter assembly machine for cleaning purposes.
  • deformation of the strip by the outer blade, so that part of the strip penetrates inside the groove may result in inaccurate cutting of the strip.
  • a device for scissor cutting strip material comprising:
  • Numeral 1 in Figure 1 indicates a filter assembly machine comprising a device 2 for cutting and feeding a succession of bands 3 to a known conveyor roller 4 on which groups 5, comprising two cigarette portions separated by a double filter, are retained pneumatically in known manner inside respective seats 6 parallel to the generating lines of roller 4. Roller 4 feeds groups 5 transversely through a transfer station 7 where bands 3 are applied by device 2 to the outer periphery of respective groups 5.
  • Device 2 comprises a feed unit 8 in turn comprising a conveyor roller 9 for receiving a strip 10 of sheet material with a gummed surface 10a opposite the surface contacting roller 9, and for feeding strip 10 through a cutting station 11 where it is cut into bands 3 by a cutting unit 12 forming part of device 2.
  • Roller 9 is rotated clockwise (in Figure 1) by known drive means (not shown) about a substantially horizontal axis 13 perpendicular to the Figure 1 plane, and presents a cylindrical outer surface 14 tangent to conveyor roller 4 at transfer station 7.
  • Roller 9 is a tubular roller defined by a succession of suction segments or sectors 15 equally spaced about axis 13 and each separated from the adjacent sector 15 by a radial axial slit 16.
  • Sectors 15 are connected to one another by end plates 15a ( Figure 3), and each presents a number of through axial suction channels 17, each of which communicates on one side with a known suction device (not shown) and on the other with a number of holes 18 extending radially through sector 15 and communicating externally through surface 14.
  • Cutting unit 12 comprises two rollers 19 and 20 fitted to respective drive shafts 21 and 22 rotating, the first in the opposite direction and the second in the same direction as roller 9, about respective axes 23 and 24 parallel to axis 13.
  • Roller 19 presents a number of substantially radial appendixes 25 equal in number to slits 16, equally spaced about axis 23, and each fitted by means of a respective screw 26 with a respective blade 27 (hereinafter referred to as the "outer blade") lying in a plane parallel to axis 23 and presenting a cutting edge 28 on its free end.
  • Each edge 28 is oblique in relation to axis 23, and presents a tip 29 facing surface 14 of roller 9 and traveling along a circular path interfering with surface 14 at cutting station 11.
  • Roller 20 is a cylindrical roller housed inside roller 9 and which presents a number of substantially radial blades 30 (hereinafter referred to as "inner blades”) equally spaced about axis 24 and fitted to the periphery of roller 20 by means of respective fastening devices 31.
  • Inner blades 30 are equal in number to slits 16, and each engages a respective slit 16 in radially-sliding transversely-slack manner.
  • each inner blade 30 presents a free end portion 32 in turn presenting an axial groove 33 on the side facing upstream in the rotation direction of roller 20.
  • portion 32 is also defined by a surface 34 sloping inwards and downstream in relation to a plane tangent to surface 14 and moving with inner blade 30.
  • Groove 33 is defined by a first surface 35 crosswise to respective inner blade 30, and by a second surface 36 extending outwards from surface 35 and obliquely in relation to the mid radial plane of respective inner blade 30, and which intersects surface 34 along an edge parallel to axis 13 and constituting the cutting edge 37 of inner blade 30.
  • Axis 24 of roller 20 is eccentric in relation to axis 13, and lies within a sector having its apex at axis 13 and subtended by an arc extending between stations 11 and 7; and the diameter of roller 20 is such that the outer surface 38 of roller 20 is substantially tangent to the cylindrical inner surface 39 of roller 9 inside said sector.
  • inner blades 30 project outwards of surface 38 by a length greater than the distance between surfaces 38 and 14, and at most equal to the sum of this distance and the difference between the diameters of surfaces 38 and 39, so that, when rollers 9 and 20 are rotated at the same speed about respective axes 13 and 24, inner blades 30 move through roller 9 and to and from an extracted position which is assumed at least at said sector and wherein edge 37 of each inner blade 30 projects outwards of surface 14.
  • rollers 9 and 20 on one side and roller 19 on the other are rotated in opposite directions, at the same speed, and in time with one another about respective axes 13, 24 and 23, so that each outer blade 27 laterally contacts a respective inner blade 30 at cutting station 11.
  • Strip 10 is fed in known manner on to surface 14 and, due to the eccentricity of axis 24 in relation to axis 13, the inner blade 30 approaching station 11 begins to project outwards of surface 14 before reaching station 11, thus detaching strip 10 from surface 14.
  • the oblique cutting edge 28 of the corresponding outer blade 27 contacts successive points of the cutting edge 37 of inner blade 30 and penetrates gradually inside groove 33 to scissor cut strip 10 transversely.
  • the connecting bands 3 so formed are fed successively to station 7 where they are applied by their gummed surfaces 10a to the periphery of respective groups 5.
  • each inner blade 30 constitutes an inner support for strip 10, for preventing strip 10 from folding inwards of slit 16 during the cutting operation, and so ensuring a precise cut, while at the same time preventing outer blade 27, with the exception of cutting edge 28, from contacting gummed surface 10a, thus substantially eliminating fouling of blade 27 by the gum during the cutting operation.

Claims (8)

  1. Un procédé de cisaillement d'un matériau en forme de ruban, le procédé comprenant les étapes consistant à :
    fournir un ruban continu (10), sur un premier cylindre de coupe rotatif (9) et dans une zone de coupe (11) située entre le premier cylindre de coupe (9) et un deuxième cylindre de coupe (12), parallèlement au premier cylindre de coupe (9) et entraíné en rotation en synchronisme avec lui, le premier cylindre de coupe (9) comprenant une pluralité de premiers moyens de coupe (30) espacés circonférentiellement et de segments de transport (15) disposés entre eux, pour maintenir le ruban (10) sur une surface périphérique (14) du premier cylindre de coupe (9); le deuxième cylindre de coupe (12) comprenant une pluralité de deuxièmes moyens de coupe (27) ayant des deuxièmes bords de coupe (28), qui sont inclinés en relation vis-à-vis d'un axe de rotation (23) du deuxième cylindre de coupe (12), de manière que, dans la zone de coupe (11), les deuxièmes moyens de coupe (27) successifs viennent en prise avec les premiers moyens de coupe (30), progressivement et en direction longitudinale des premiers moyens de coupe (30), afin de couper le ruban (10) en des segments de ruban (3); et successivement, transporter les segments de ruban (3) maintenus par les segments de transport (15) sur un transporteur (14);
    caractérisé en ce que chaque premier moyen de coupe (30) comprend une lame de coupe (30), agencée dans une fente (16) s'étendant radialement et longitudinalement, ménagée à travers ladite surface périphérique (14) ; chaque lame de coupe (30) comportant un premier bord de coupe (37) et étant déplaçable radialement dans la fente (16) concernée, entre une première position, dans laquelle ledit premier bord de coupe (37) est à l'intérieur de ladite surface périphérique (14), et une deuxième position, dans laquelle ledit premier bord de coupe (37) fait saillie hors de la fente (16) et à l'extérieur de ladite surface périphérique (14); chaque lame de coupe (30) étant déplacée de manière que le premier bord de coupe (37) concerné fasse saillie hors de ladite surface périphérique (14), au moins lorsque la lame de coupe (30) se déplace dans ladite zone de coupe (11), et soit disposé à l'intérieur de ladite surface périphérique (14), lorsque la lame de coupe (30) se déplace dans une autre zone.
  2. Un dispositif de cisaillement d'un matériau en forme de ruban, le dispositif comprenant :
    un premier cylindre de coupe (9), monté à rotation sur un premier axe (13) et au moyen duquel un ruban continu (10) peut être fourni dans une zone de coupe (11); le premier cylindre de coupe (9) comprenant une pluralité de premiers moyens de coupe (30) espacés circonférentiellement et de segments de transport (15) disposés entre eux, pour maintenir le ruban (10) sur une surface périphérique (14) du premier cylindre de coupe (9); lesdits premiers moyens de coupe (30) étant pourvus de premiers bords de coupe (37) afférents;
    un deuxième cylindre de coupe (12), monté à rotation en synchronisme avec le premier cylindre de coupe (9), autour d'un deuxième axe (23) parallèle au premier axe (13); le deuxième cylindre de coupe (12) comprenant une pluralité de deuxièmes moyens de coupe (27) ayant des deuxièmes bords de coupe (28) afférents, qui sont inclinés en, relation vis-à-vis du deuxième axe (23), de manière que, dans la zone de coupe (11), les deuxièmes moyens de coupe (27) successifs viennent en prise avec les premiers moyens de coupe (30), progressivement et en direction longitudinale des premiers moyens de coupe (30), afin de couper le ruban (10) en des segments de ruban (3); et
    un transporteur (4) destiné à recevoir successivement les segments de ruban (3) en une zone de transfert (7);
    caractérisé en ce que chaque premier moyen de coupe (30) comprend une lame de coupe (30), agencée dans une fente (16) s'étendant radialement et longitudinalement, ménagée à travers ladite surface périphérique (14), chaque lame de coupe (30) étant déplaçable radialement dans la fente (16) concernée, entre une première position, dans laquelle ledit premier bord de coupe (37) est à l'intérieur de ladite surface périphérique (14), et une deuxième position, dans laquelle ledit premier bord de coupe (37) fait saillie hors de la fente (16) et à l'extérieur de ladite surface périphérique (14); des moyens d'activation (20) étant prévus pour déplacer chaque lame de coupe (30) de manière que le premier bord de coupe (37) concerné fasse saillie hors de ladite surface périphérique (14), au moins lorsque la lame de coupe (30) se déplace dans la zone de coupe (11), et soit disposé à l'intérieur de ladite surface périphérique (14), lorsque la lame de coupe (30) se déplace dans une autre zone.
  3. Un dispositif selon la revendication 2, caractérisé en ce que ledit premier cylindre de coupe (9) comprend un rouleau tubulaire (9) ayant une surface intérieure cylindrique (39) et étant monté à rotation à une vitesse angulaire donnée autour dudit premier axe (13); ladite surface périphérique (14) étant une surface extérieure (14) cylindrique dudit rouleau tubulaire (9) et étant doté desdites fentes (16); lesdites lames de coupe (30) étant montées, conjointement avec lesdits moyens d'activation (20), à l'intérieur du rouleau tubulaire (9); et chaque lame de coupe (30) venant en prise avec ladite fente (16) respective, d'une manière faisant intervenir un coulissement radial.
  4. Un dispositif selon la revendication 3, caractérisé en ce que lesdits moyens d'activation (20) comprennent un rouleau intérieur (20), ayant une surface extérieure (38) cylindrique et montés de façon excentrée à l'intérieur du rouleau tubulaire (9), de manière à tourner à ladite vitesse angulaire autour d'un troisième axe (24), parallèle au premier axe (13); le rouleau intérieur (20) ayant un diamètre inférieur au diamètre de ladite surface intérieure (39) cylindrique.
  5. Un dispositif selon la revendication 4, caractérisé en ce que le troisième axe (24) est situé dans un secteur ayant son sommet sur le premier axe (13) et sous-tendu par un arc passant par lesdites zones de coupe et de transfert (11, 7); le rouleau intérieur (20) ayant un diamètre tel que sa surface extérieure (38) cylindrique soit sensiblement tangente à la surface intérieure (39) cylindrique du rouleau tubulaire (9) à l'intérieur dudit secteur.
  6. Un dispositif selon la revendication 5, caractérisé en ce que chaque lame de coupe (30) fait saillie radialement à l'extérieur du rouleau intérieur (20); chaque lame de coupe (30) faisant saillie à l'extérieur de la surface extérieure (38) cylindrique du rouleau intérieur (20), d'une longueur supérieure à la distance qu'il y a entre les surfaces intérieure et extérieure (39, 14) cylindriques du rouleau tubulaire (9), et au moins égale à la somme de cette distance et de la différence entre les diamètres de la surface intérieure (39) du rouleau tubulaire (9) et la surface extérieure (38) du rouleau intérieur (20).
  7. Un dispositif selon la revendication 6, caractérisé en ce que chaque dit premier bord de coupe (37) est parallèle audit troisième axe (24).
  8. Un dispositif selon la revendication 7, caractérisé en ce que chaque deuxièmes moyens de coupe (27) comprennent une lame extérieure (27) se déplaçant autour dudit deuxième axe (23); lesdits premier et deuxième axes (13, 23) étant situés de chaque côté de la zone de coupe (11).
EP94118063A 1993-11-24 1994-11-15 Procédé et dispositif pour le cisaillement d'un matériau en forme de ruban Expired - Lifetime EP0654329B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO930469 1993-11-24
IT93BO000469A IT1264275B1 (it) 1993-11-24 1993-11-24 Metodo e dispositivo per il taglio a forbice di materiale in nastro.

Publications (2)

Publication Number Publication Date
EP0654329A1 EP0654329A1 (fr) 1995-05-24
EP0654329B1 true EP0654329B1 (fr) 1998-07-08

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Application Number Title Priority Date Filing Date
EP94118063A Expired - Lifetime EP0654329B1 (fr) 1993-11-24 1994-11-15 Procédé et dispositif pour le cisaillement d'un matériau en forme de ruban

Country Status (6)

Country Link
EP (1) EP0654329B1 (fr)
JP (1) JPH07186088A (fr)
CN (1) CN1042592C (fr)
BR (1) BR9404712A (fr)
DE (1) DE69411508T2 (fr)
IT (1) IT1264275B1 (fr)

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Publication number Priority date Publication date Assignee Title
ITBO20030708A1 (it) * 2003-11-24 2005-05-25 Gd Spa Metodo per la mautenzione predittiva di un'unita' di
DE102010030349A1 (de) * 2010-06-22 2011-12-22 Hauni Maschinenbau Ag Fördertrommel der Tabak verarbeitenden Industrie
US20140076118A1 (en) * 2011-04-28 2014-03-20 Pasaban, S.A. Device for the transverse cutting of cellulose-pulp bands
CN102247002A (zh) * 2011-06-02 2011-11-23 云南同云科贸有限公司 在线烟绕切割装置
GB2526589A (en) * 2014-05-29 2015-12-02 British American Tobacco Co Smoking article assembly apparatus
CN104842390A (zh) * 2014-12-24 2015-08-19 王鑫 新型切纸装置
DE102015200711B4 (de) * 2015-01-19 2016-09-01 Hauni Maschinenbau Gmbh Schneiden eines Belagpapierstreifens
DE102016112724B4 (de) * 2016-07-12 2018-02-08 Hauni Maschinenbau Gmbh Schneiden eines Belagpapierstreifens der Tabak verarbeitenden Industrie
DE102017213389B4 (de) * 2017-08-02 2022-07-28 Heidelberger Druckmaschinen Ag Rotationsstanze zum Ausstanzen eines Materialstücks aus einem Bedruckstoff
CN109968428B (zh) * 2017-12-27 2020-12-11 中烟机械技术中心有限责任公司 带状纸质材料切割装置
CN116353012B (zh) * 2023-06-02 2023-08-11 石狮佳南热熔胶有限公司 切边整齐的热熔胶膜切割回收系统

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Publication number Priority date Publication date Assignee Title
DE502976C (de) * 1928-12-13 1930-07-22 Leopold Rado Verfahren zum Schneiden von Blaettern bestimmter Laenge aus Bahnen
BE655845A (fr) * 1963-12-02 1965-05-17
GB1087118A (en) * 1964-07-02 1967-10-11 Paper Converting Machine Co Improvements in or relating to cut off devices
FR1465464A (fr) * 1965-10-18 1967-01-13 Windmoeller & Hoelscher Dispositif de découpage transversal pour feuilles continues de matière plastique
FR2414986A1 (fr) * 1978-01-23 1979-08-17 Tech Bois Centre Procede et dispositif pour couper, en continu et de facon rotative, une feuille transversalement a son sens de defilement
IT1229428B (it) * 1988-06-11 1991-08-08 Hauni Werke Koerber & Co Kg Dispositivo di taglio.
US5222422A (en) * 1991-12-23 1993-06-29 R.A. Jones & Co. Inc. Wide range pouch form, fill, seal apparatus

Also Published As

Publication number Publication date
CN1108512A (zh) 1995-09-20
IT1264275B1 (it) 1996-09-23
ITBO930469A0 (it) 1993-11-24
EP0654329A1 (fr) 1995-05-24
DE69411508T2 (de) 1998-12-17
DE69411508D1 (de) 1998-08-13
CN1042592C (zh) 1999-03-24
ITBO930469A1 (it) 1995-05-24
BR9404712A (pt) 1995-07-18
JPH07186088A (ja) 1995-07-25

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