EP0933296A1 - Group for forming packets of rigid packaging, in particular of cigarette packets, in the cigarette packing machines - Google Patents

Group for forming packets of rigid packaging, in particular of cigarette packets, in the cigarette packing machines Download PDF

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Publication number
EP0933296A1
EP0933296A1 EP99100250A EP99100250A EP0933296A1 EP 0933296 A1 EP0933296 A1 EP 0933296A1 EP 99100250 A EP99100250 A EP 99100250A EP 99100250 A EP99100250 A EP 99100250A EP 0933296 A1 EP0933296 A1 EP 0933296A1
Authority
EP
European Patent Office
Prior art keywords
folding
blank
group
group according
housing
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Withdrawn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
EP99100250A
Other languages
German (de)
English (en)
French (fr)
Inventor
Valter Spada
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.)
SASIB SpA
Original Assignee
Sasib Tobacco 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 Sasib Tobacco SpA filed Critical Sasib Tobacco SpA
Publication of EP0933296A1 publication Critical patent/EP0933296A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/004—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material in blanks, e.g. sheets precut and creased for folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/28—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a curved path, e.g. on rotary tables or turrets
    • B65B11/30—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a curved path, e.g. on rotary tables or turrets to fold the wrappers in tubular form about contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
    • B65B19/02—Packaging cigarettes
    • B65B19/22—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers
    • B65B19/223—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers in a curved path; in a combination of straight and curved paths, e.g. on rotary tables or other endless conveyors
    • B65B19/226—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers in a curved path; in a combination of straight and curved paths, e.g. on rotary tables or other endless conveyors using endless conveyors having pockets, each pocket being provided with separate members, e.g. folders

Definitions

  • the invention relates to a group for forming packets of rigid packaging, in particular of cigarette packets, in the cigarette packing machines, comprising the features according to the preamble of claim 1.
  • the known cigarette packet forming groups generally have stationary folders for any type of path, that is consisting of surfaces suitably shaped and engaging with the parts of the blank to be folded around preset folding lines.
  • the advancement of the orderly groups of cigarettes together with the associated blank along the folding path takes place at high speed and generally in steps of advancement with considerable accelerations and decelerations.
  • the wings or the flaps of the blank not yet folded are and must be free and therefore, as they have relatively large projections, are subjected to the influence of the accelerations and decelerations.
  • the stationary folding surfaces must obviously be curved as they must deviate said wings or said flaps of the blank from the direction of the unfolded position to the one of the folded position.
  • the stationary folding surfaces have the inconvenience that these must remain adherent against the associated parts of the blank in the different folding positions. Consequently one has a grazing of the blank and more precisely of the face which constitutes the one visible of the packet against the said surfaces and with the speeds of advancement presently required such grazing can cause damage to the blank from the aestethic point of view, both with regards to damage by scraping or cancellation of aestethic elements foreseen on the blank as well as for the appearance, for example, of lines or other marks caused by the reciprocal rubbing between the blank and the folding surfaces.
  • the invention has therefore the aim to create a cigarette packet forming group of the type described at the beginning that thanks to simple and low cost devices is able to prevent the inconveniences described above without thus operationally limiting the group relative to the present ones, but on the contrary allowing for a better and more efficient and reliable operation.
  • the invention attains the above aims with a packet forming group of the type described at the beginning and showing the combination of features of the characterizing part of claim 1
  • the conveyor housings are constituted by housing pockets distributed along the peripheral rim of a wheel revolving around an horizontal axes, while folding means with the relative support and driving means are provided in correspondence with each housing pocket and on the two sides axially opposite of each pocket.
  • the folding means form two crowns of coinciding means each with one of the two opposite faces of the wheel and each pair of folders in correspondence with the corresponding housing pocket, while the support means of the folders are stationary relative to the housing pockets, that is they move together with the same.
  • the cam is of the three dimensional desmodromic type and the oscillating arms have pairs of rollers which engage with the opposite faces of the cam track.
  • the housing pockets of the individual orderly groups of cigarettes together with the blank to be folded are open preferably along the ends parallel to the two faces of the wheel and along the radially external side, while in combination with the folders have stationary means to retain the orderly groups of cigarettes in the housing pockets constituted by stationary surfaces concentric with the path of the housing pockets. While the said stationary retaining surfaces become smaller and thinner little by little as the folding means approach the parts of the blank to be folded to the faces still free of the orderly group of cigarettes, so as not to interfere with the said parts of the blank and with the folding means.
  • the blank is wrapped around an orderly group of cigarettes with a progressive motion of wrapping the same that is transversal to the major axis of the blank, in that the orderly group of cigarettes is arranged in such a way, whereby the major axis of the blank is transversal to the direction of advance, while on the two sides of the housing pocket parallel with the direction of conveyance and with the minor axis of the blank, oscillating folder arms are provided the oscillating support of which moves together with the housing pocket and the said folder arms oscillate between a dwell station where they are tilted laterally outward relative to the housing pocket and in a position of completed fold in where they are oscillated towards the median plane of the housing pockets and in which position they push the parts of the blank engaging with the face on the peripheral external face of the wheel of the group of ordered cigarettes to the corresponding part of the blank.
  • each folder arm has a shape such as to engage first with the outermost part of the blank relative to the mean axis of the conveyor housings, and subsequently also with the innermost part to accompany and fold together and with the final orientation between the said two sections of the projecting part of the blank against the orderly group of cigarettes.
  • the folder arms are made to oscillate around an axis arranged below the edges of the opposite lateral faces of the orderly groups of cigarettes beyond which exstend the two projecting parts of the blank in that the folder arm is shaped in form of an inverted L, or oscillating around the longer branch and the surfaces of contact with the blank one being provided in the intermediate area of the longer branch and one in the intermediate area of the shorter branch in such a way, whereby an area of contact with the blank coincides with the folding line between the two areas of the projecting part of the blank that cooperate with said arm and one area of contact is constituted by the band along the said folding line of the outermost area of the blank.
  • the two areas of the projecting part of the blank are folded in advance between themselves taking up an intermediate orientation, while the reciprocal correct position is reached under condition of completion of the fold against the corresponding face of the orderly group of cigarettes.
  • further mobile or stationary folders can be provided for the folding of further flaps, for example of the overlapping wings for forming the sides perpendicular to the direction of conveyance or additional wings.
  • the advantages of the present invention become evident from the description above.
  • the parts of the blank that constitute the visible faces generally of greater extension and aestethic impact of the packet obtained by folding the same move together with the pocket and the blank and carry out motions with regards to the folding that are very limited. In this way one eliminates the inconveniences due to possible sticking of the same parts of the blank to the surfaces that determine the folding and one avoids, or in any case drastically reduces the danger of damaging the visible surfaces of the blank that would reduce the value or aestethic appearance.
  • the particular construction of the folders allows to obtain the maximum precision of motion and the delicate handling of the blank, furthermore the same is mechanically simple.
  • the construction of the folding means also allows for the making of the housings to be such to prevent leaks of lubricants in the sections where the product is housed avoiding any danger of soiling. The construction is of safe and reliable operation.
  • a group for forming rigid packets, in particular of cigarettes is constituted in particular, but not limit wise by a wheel 1 which is mounted revolving around an horizontal axis 2 and that carries a plurality of housing pockets 3 angularly equidistant on its circumferential peripheral face.
  • the wheel 1 is formed by two discs 101 each of which is mounted on a half shaft 33.
  • the two discs and the two half shafts are coaxial between each other and the two discs are distanced between each other in a dimension substantially corresponding to the dimensions of the packet in direction of the axis of rotation.
  • the driving can take place thanks to any means known in themselves for example by transmissions not illustrated which drive the two half shafts in a manner perfectly synchronized between each other.
  • This allows to position followers/ejectors inside between the two discs indicated generically with 4 also known in themselves and which are activated by drive shafts 104 which extend themselves inside the hollow made half shafts 33.
  • the housing pockets are constituted by a bottom wall which can be whole or formed by small bars or crossbars 103 in the two end zones of the corresponding side of the packet and by vertical ribs 203 which overlap at the two radial sides of the packet P transversal to the direction of advance.
  • an oscillating folder arm 5 is provided in form of an L and that is fulcrated in a manner oscillating around a perpendicular axis at the median radius between the two lateral vertical ribs 203 and that is foreseen radially inside with respect to the bars 203 that form the bottom side of the housing pockets 3.
  • the radial distance corresponds substantially to the radial dimension of the packet G that is intended to be housed in the housing pocket 3.
  • Two parallel drive arms 6 are articulated on an intermediate appendix 105 of each arm 5, the opposite end of which is articulated to the corresponding branch of the forked end 107 of an oscillating drive arm 7.
  • This is fulcrated in an oscillating manner at its intermediate point around an axis 8 parallel to the axis of oscillation of the folding arms 5 and the opposite end has a revolving roller 15 at the ends of the two branches of a second fork 207 oriented perpendicularly to the first 107 respectively.
  • the axis of the fulcrum 8 of the drive arms 7, as well as the axis of oscillation of the folding arms 5 is mounted on a stationary support 14, 14' fixed to the external side of the corresponding disc 101 or shaped with the same.
  • the rollers 15 are revolving around axis contained in the median radial plane of the housing pocket 3 and each engaging with the two opposed tracks 109 of a three dimensional cam 9.
  • a stationary part 10 mounted coaxially to the axis of rotation 3 of the wheel and facing the corresponding disc of the wheel 1.
  • the peripheral edge is suitably circular and the part 10 on which the cam 9 is made constitutes the axial closure element of the housing chamber 11 of the drive arms 7 and of the cam 9.
  • This one is at least partially closed on the circumferential side of the covers 111 that are fixed to the corresponding disc 101 suitably shaped to form bearing and mounting surfaces and that support lubricant proof and in a rotary manner relative to the same thanks to oil seal rings 211 against the circular peripheral edge of the part 10 that carries the cam 9.
  • the folding arms 5 have an extension such as to cover in the circumferential direction of the extension of the housing pocket 3, while these are in the shape of an inverted L with the longer branch 205 that is the one fulcrated in an oscillating manner and with the shorter branch 305 that in the position oscillated towards the disc 101 arranges itself parallel to the plane defined by the lateral bottom ribs 203 of the housing pocket 3 at a radial distance from the same corresponding to the thickness of the packet, while the intermediate zone 405 of the longer branch 205 of the folding arm 5 is radially perfectly oriented and extends itself level with the plane defined by the open side of housing pocket 3 parallel to the face of the corresponding disc 101.
  • the cam 9 can be shaped in such a manner as to guarantee the oscillations of the folding arms 5 into the desired positions of folding of the flaps projecting axially from the blank F.
  • the motion of the folding arms is to a limited degree smooth and continuous with regards to stops due to the advancement in steps of the wheel itself, without variations in position or leaps. This guarantees together with the absence of relative circumferential motion and to the limited reciprocal rubbing between the folding arms 5 and areas of contact of the same on the blank, a delicate but also firm folding of the blank and such as to avoid hang ups between the folding means and the parts folded by the same or damage to the blank.
  • FIG. 18 A typical blank for making a rigid cigarette packets with hinge lid is shown in Fig. 18.
  • the blank has in reality already been subjected to some forming operations or to the connection with the so called inner frame that are not subject and do not have an effect on the sequences carried out by the group according to the invention.
  • the blank F has a central band formed by several rectangles of different dimensions and indicated in order from F1 to F6 and which are respectively the front facing part of the hinged lid the top end side of the packet connected to the hinged lid the rear side of the hinged lid that is hinged at the remaining part of the rear side of the packet, the bottom side of the packet and the remaining part of the front facing side of the packet.
  • Lateral wings indicated with L1 to L6 and L1' to L6' are connected on both sides of the central band and are symmetrically to the same. From L1.
  • the wings constitute respectively the outer overlapping wing on the sides of the packet, the two opposite internal wings at the top end of the blank which is overlapped by the zone F2, the wings that form the narrow sides in the area of the lid and which are overlapped be the wings L1, L1', the wings that form the remaining part of the sides, the wings of the bottom side which is overlapped by the area F5 and the wings overlapping the wings L4, L4' along the sides of the packet.
  • the wings L2. L2' and L5, L5' that form the internal layer of the end sides that form the bottom and the head of the packet and which are overlapped in the finished condition of the packet by the areas F2 and F5, are connected along the preset folding lines to the adjacent wings L3, L3' and L4, L4' that form the innermost layer of the sides of the packet, while they are separated by cut-outs from the areas F2, F5 adjacent to the same and from the wings L1, L1' and L6, L6'.
  • the blank is suitably wrapped around an ordered group of cigarettes G preferably previously wrapped in an inner envelope of foil or similar.
  • the Fig.s 18 to 20 illustrate some main phases of the folding.
  • the orderly group of cigarettes G is pushed into a pocket 3 with a radial motion and placing between the group G and the pocket a blank F suitably centered with the zones F3 and F4 relative to the corresponding side of the orderly group of cigarettes G.
  • the insertion into the pocket with the blank oriented with its longitudinal axis parallel to the axis of rotation of the wheel 1 determines the first folding of the lateral wings L3, L3' and L4, L4' against the sides of the narrow sides of the orderly group of cigarettes G.
  • the wings L2. L2' and L5, L5' are folded which are connected by means of a preset folding line to the ends of the lateral wings L3, L3' and L4, L4' folded on insertion of the orderly group of cigarettes G into the pocket 3.
  • the wings L2. L5 are folded by external folders 21 that move tangentially to the discs 101 and that are formed for example by folding spatulas parallel with the faces of the disc and movable forward and back in position substantially overlapping the end side of the orderly group of cigarettes G.
  • the Fig. 6 illustrates said folders 21 in the withdrawn position and in the folding position respectively which is indicated with a dotted line with the reference number 21'.
  • the spatulas advantageously constitute the branches of a fork that is mounted on a rod 121, while the movement of the spatulas 21 takes place thanks to an articulated polygon formed by the levers and the by the arms indicated with 221, 321, 421, and 521.
  • the spatulas arrange themselves at a certain distance from the shoulders 222, in order to form an extension and as the said distance is smaller than the dimension of the wings L2, L5 and remain in this position to guarantee that said wings slip under said shoulders 222 during at least the initial phase of the subsequent step of advancement.
  • the further advancement of the wheel entails the activation of the two opposed oscillating folding arms 5 that act on the projecting areas F1, F2 and F5, F6.
  • the first folding takes place along the lines L7 and L8 as illustrated in the Fig.s 10 and 20.
  • the folding arms 5 start to engage with the branch 305 with the areas F1 and F6 and thanks to the opposing action of a stationary part 322, fold said areas relative to the areas F2 and F5.
  • the following folding step will lead the areas F1 and F2 and F5 and F6 to progressively overlap the corresponding side of the orderly group of cigarettes as illustrated in the Fig.s 11, 12, and 21.
  • the only wings still to be folded after this step are those overlapping the narrow sides L1, L1' and L6, L6' that extend themselves in line in pairs and that are folded thanks to the stationary folding surfaces on ejection in station IV of the packet from the housing pocket 3.
  • the orderly group of cigarettes G with the associated blank are retained in the corresponding pockets 3, until the complete folding in the final position of the areas F1, F2 and F5, F6 of the blank F has been reached thanks to a circumferential retaining surface that extends itself coaxially with the wheel 1, at a distance from the pockets corresponding to the thickness of the orderly group of cigarettes G with the blank and that lessens in thickness, keeping its position in direction of advancement of the wheel, presenting a preset angular amplitude that normally lies between 100 and 120 degrees.
  • Said surface 122 is formed by by the radially internal side of a concave that terminates progressively tapering itself in the angular position corresponding to the moment where the areas F1, F2 and F5, F6, have been brought into contact with the corresponding side of the orderly group of cigarettes G and are retained in that position by the folding arms 5. Therefore the areas F1, F2, F5 and F6, are folded over the concave 22 that terminates in such a position as not to interfere with the actual folders 5.
  • the concave 22 has in its initial area with reference to the direction of rotation also lateral shoulders 222 which substantially overlap in line the open ends of the pockets 3 parallel to the discs 101 and that have an angular amplitude such whereby the shoulders 222 do not break along the entire path from the station of introduction I to the angular position II corresponding to the moment in where the first fold has been carried out in the conditions substantially as in Fig.s 7 to 10 and 20.
  • the lateral shoulders 222 have an L shaped section with an axial branch 322 the external edge of which is in line with the folding line L7, L8 between the areas F1 and F2 and the areas F5 and F6.
  • a further retaining surface 122 is foreseen downstream from the station indicated with III in which the folding arms complete the fold. This one is made substantially symmetric to the preceding ones and is part of a coaxial concave 22' and with a construction substantially symmetrical and analogous to the concave 22.
  • the concaves 22, 22' are stationary and are supported by the frame of the machine obviously in an adjustable manner with regards to the position of the same.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
EP99100250A 1998-01-28 1999-01-08 Group for forming packets of rigid packaging, in particular of cigarette packets, in the cigarette packing machines Withdrawn EP0933296A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITSV980006 1998-01-28
ITSV980006 IT1305402B1 (it) 1998-01-28 1998-01-28 Gruppo di formatura di pacchetti di imballaggio rigidi, in particolaredi pacchetti di sigarette, nelle macchine impacchettatrici di

Publications (1)

Publication Number Publication Date
EP0933296A1 true EP0933296A1 (en) 1999-08-04

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Family Applications (1)

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EP99100250A Withdrawn EP0933296A1 (en) 1998-01-28 1999-01-08 Group for forming packets of rigid packaging, in particular of cigarette packets, in the cigarette packing machines

Country Status (2)

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EP (1) EP0933296A1 (it)
IT (1) IT1305402B1 (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1493667A1 (en) * 2003-07-03 2005-01-05 SASIB S.p.A. Method and device for manufacturing packages from a flat, shaped element of packing stuff
EP1533231A1 (en) * 2003-11-13 2005-05-25 G.D Societ Per Azioni Folding device in a packaging machine
DE102008027258A1 (de) * 2008-06-06 2009-12-10 Focke & Co.(Gmbh & Co. Kg) Verfahren und Vorrichtung zum Herstellen von Zigarettenpackungen
WO2011131274A1 (de) * 2010-04-23 2011-10-27 Focke & Co. (Gmbh & Co. Kg) Vorrichtung und verfahren zum herstellen von packungen für zigaretten
WO2023094999A1 (en) * 2021-11-24 2023-06-01 R.A Jones & Co. Device and method for operating on products, in particular for packaging articles in boxes

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899865A (en) * 1973-10-03 1975-08-19 Haensel Otto Gmbh Wrapping apparatus
FR2282369A1 (fr) * 1974-08-21 1976-03-19 Focke Pfuhl Verpack Automat Procede et dispositif pour fabriquer et remplir des etuis a charniere en materiau pliable, de preference pour cigarettes
GB2235913A (en) * 1989-09-14 1991-03-20 Gd Spa Method and device for producing tubular wrappings
GB2300618A (en) * 1995-05-10 1996-11-13 Gd Spa Wrapping products, eg packets of cigarettes
EP0787650A1 (en) * 1996-01-31 1997-08-06 G.D Societa' Per Azioni Product conveying wheel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3899865A (en) * 1973-10-03 1975-08-19 Haensel Otto Gmbh Wrapping apparatus
FR2282369A1 (fr) * 1974-08-21 1976-03-19 Focke Pfuhl Verpack Automat Procede et dispositif pour fabriquer et remplir des etuis a charniere en materiau pliable, de preference pour cigarettes
GB2235913A (en) * 1989-09-14 1991-03-20 Gd Spa Method and device for producing tubular wrappings
GB2300618A (en) * 1995-05-10 1996-11-13 Gd Spa Wrapping products, eg packets of cigarettes
EP0787650A1 (en) * 1996-01-31 1997-08-06 G.D Societa' Per Azioni Product conveying wheel

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1493667A1 (en) * 2003-07-03 2005-01-05 SASIB S.p.A. Method and device for manufacturing packages from a flat, shaped element of packing stuff
EP1533231A1 (en) * 2003-11-13 2005-05-25 G.D Societ Per Azioni Folding device in a packaging machine
US7062890B2 (en) 2003-11-13 2006-06-20 G.D Societa' Per Azioni Packing machine
DE102008027258A1 (de) * 2008-06-06 2009-12-10 Focke & Co.(Gmbh & Co. Kg) Verfahren und Vorrichtung zum Herstellen von Zigarettenpackungen
WO2011131274A1 (de) * 2010-04-23 2011-10-27 Focke & Co. (Gmbh & Co. Kg) Vorrichtung und verfahren zum herstellen von packungen für zigaretten
DE102010018238A1 (de) * 2010-04-23 2011-10-27 Focke & Co. (Gmbh & Co. Kg) Vorrichtung und Verfahren zum Herstellen von Packungen für Zigaretten
CN102917952A (zh) * 2010-04-23 2013-02-06 佛克有限及两合公司 用于制造香烟包装件的设备和方法
EP2647576A1 (de) * 2010-04-23 2013-10-09 Focke & Co. (GmbH & Co. KG) Vorrichtung und Verfahren zum Herstellen von Packungen für Zigaretten
CN102917952B (zh) * 2010-04-23 2015-03-18 佛克有限及两合公司 用于制造香烟包装件的设备和方法
WO2023094999A1 (en) * 2021-11-24 2023-06-01 R.A Jones & Co. Device and method for operating on products, in particular for packaging articles in boxes

Also Published As

Publication number Publication date
ITSV980006A1 (it) 1999-07-28
IT1305402B1 (it) 2001-05-04

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