EP3254974B1 - Procédé et machine d'emballage pour plier une feuille thermosoudable de matériau d'emballage autour d'un groupe d'articles de tabac - Google Patents

Procédé et machine d'emballage pour plier une feuille thermosoudable de matériau d'emballage autour d'un groupe d'articles de tabac Download PDF

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Publication number
EP3254974B1
EP3254974B1 EP17175115.9A EP17175115A EP3254974B1 EP 3254974 B1 EP3254974 B1 EP 3254974B1 EP 17175115 A EP17175115 A EP 17175115A EP 3254974 B1 EP3254974 B1 EP 3254974B1
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EP
European Patent Office
Prior art keywords
wrapping
group
sheet
wrapping material
tobacco articles
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.)
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Application number
EP17175115.9A
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German (de)
English (en)
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EP3254974A1 (fr
Inventor
Gilberto Spirito
Luca Federici
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GD SpA
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GD SpA
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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
    • 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
    • B65B19/025—Packaging cigarettes in webs of flexible sheet material
    • 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
    • B65B11/18—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in two or more straight paths
    • B65B11/20—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in two or more straight paths to fold the wrappers in tubular form about contents
    • B65B11/22—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in two or more straight paths to fold the wrappers in tubular form about contents and then to form closing folds of similar form at opposite ends of the tube
    • 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
    • B65B11/38—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a combination of straight and curved paths
    • B65B11/40—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a combination of straight and curved paths to fold the wrappers in tubular form about contents
    • B65B11/42—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a combination of straight and curved paths to fold the wrappers in tubular form about contents and then to form closing folds of similar form at opposite ends of the tube
    • 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
    • B65B19/221—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers in one or more straight paths
    • 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
    • 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
    • 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
    • B65B49/00—Devices for folding or bending wrappers around contents
    • B65B49/02—Fixed or resiliently-mounted folders, e.g. non-driven rollers
    • 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
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members

Definitions

  • the present invention relates to a wrapping method and to a packer machine to fold a heat-sealable sheet of wrapping material around a group of tobacco articles.
  • the present invention finds advantageous application in the folding of a heat-sealable sheet of wrapping material around a parallelepiped-shaped group of cigarettes to produce a sealed wrap, to which the following description will make explicit reference without implying any loss of generality.
  • Patent application WO2010136869A1 describes a wrapping method to produce a sealed wrap according to which are provided the steps of: feeding the group of cigarettes and the sheet of wrapping material inside a pocket of a wrapping drum so that the sheet of wrapping material is arranged "U"-folded inside the pocket and has an outer flap which protrudes from the pocket and an inner flap that rests on a side wall of the group of cigarettes; folding the inner flap by 90° relative to the side wall of the group of cigarettes so as to arrange the inner flap perpendicular to the side wall itself; folding the outer flap in an "L"-shape inside the pocket, against the side wall of the group of cigarettes and against the inner flap arranged perpendicular to the side wall so as to overlap the outer flap and the inner flap one over the other, thus giving to the sheet of wrapping material a tubular shape; and heat-seal the outer flap and the inner flap to one another.
  • a wrapping drum is used provided with a plurality of pockets, each of which comprises a lower wall and two side walls that are parallel and opposite to one another; a side wall of each pocket has a reduced size relative to the opposite side wall so as to leave the inner flap of the sheet of wrapping material uncovered and ends with a transverse support element, which is arranged perpendicular to the side wall and is provided with suction so as to attract and hold the inner flap of the sheet of wrapping material by means of suction.
  • Each transverse support element performs a contrast function both when folding the outer flap against the inner flap, and during the subsequent heat-sealing of the outer flap to the inner flap.
  • each pocket has its own contrast, i.e. its own transverse support element
  • the setup step more complex (therefore a longer execution) as it is necessary to finely adjust the position of each contrast (i.e. of each transverse support element) so as to cooperate in an optimal manner with at least one moveable sealing device that is on the outside of the wrapping drum and is common to all the pockets; i.e. it is necessary to repeat the fine adjustment of the position of each contrast (i.e. of each transverse support element) with respect to the common moveable sealing device.
  • the fact that the contrast used during the heat-sealing i.e. the transverse support element
  • the fact that the contrast used during the heat-sealing process i.e. the transverse support element
  • the same wrapping drum can produce both perfectly sealed wraps, and unsatisfactory sealed wraps.
  • Patent application WO2015128812A1 describes a packer machine comprising: a forming station in which groups of cigarettes are formed in succession, a preliminary folding station in which a corresponding sheet of wrapping material is "U"-folded around each group of cigarettes, a longitudinal folding station in which each sheet of wrapping material is longitudinally folded in the area of the smaller side walls of the respective group of cigarettes so as to form and heat-seal a couple of opposing longitudinal fins, and a transverse folding station in which each sheet of wrapping material is transversely folded in the area of the smaller wall of the respective group of cigarettes so as to form and heat-seal a transverse fin.
  • the object of the present invention is to provide a wrapping method and a packer machine to fold a heat-sealable sheet of wrapping material around a group of tobacco articles, which wrapping method and packer machine allow to operate quickly (i.e. with a high hourly productivity rate) while guaranteeing a high and above all constant production quality and, at the same time, being easy and inexpensive to implement.
  • a wrapping method and a packer machine is provided to fold a heat-sealable sheet of wrapping material around a group of tobacco articles, according to what is claimed in the appended claims.
  • number 1 denotes, as a whole, a sealed cigarette wrap for example of the type described in patent US4300676A1 .
  • the wrap 1 for cigarettes encloses a group 2 of cigarettes with a parallelepiped shape having an upper wall 3 and a lower wall 4, which are formed by the tips of the cigarettes and are parallel and opposite to one another, two larger side walls 5 and 6, which are formed by the cylindrical side walls of the cigarettes and are parallel and opposite to one another, and two smaller side walls 7 and 8, which are formed by the cylindrical side walls of the cigarettes and are parallel and opposite to one another.
  • the upper wall 3 of the group 2 of cigarettes is arranged in the area of the cigarette filters, while the lower wall 4 of the group 2 of cigarettes is arranged in the area of the tips of the cigarettes (i.e. the ends of the cigarettes with the tobacco in view).
  • the wrap 1 has, at the top and in front, a cigarette pull-out opening 9 (shown in Figure 4 ), which is delimited by a pre-weakened tear-open line, is closed by a reusable closing tab 10 and involves a portion of a front wall of the wrap 1 and a portion of an upper wall of the wrap 1.
  • the closing tab 10 is fixed to the wrap 1 for cigarettes by means of a repositionable non- drying adhesive which is applied to the lower surface of the closing tab 10 and is arranged all around the pull-out opening 9 so as to allow the closing tab 10 to be repeatedly partially separated from the wrap 1 and then again fixed to the wrap 1.
  • the wrap 1 is made by folding a rectangular-shaped sheet 11 of wrapping material (illustrated in Figure 4 ) around the group 2 of cigarettes (illustrated in Figure 2 ). Before folding the sheet 11 of wrapping material around the group 2 of cigarettes, the sheet 11 of wrapping material is centrally pre-incised to define the pull-out opening 9; thereafter, to the sheet 11 of wrapping material a closing tab 10 is applied, which is gummed on the lower part, i.e. provided with the repositionable adhesive on its lower surface that inside the pull-out opening 9 causes the permanent gluing of the inner portion of the sheet 11 of wrapping material to the closing tab 10 and on the outside of the pull-out opening 9 causes a detachable gluing of the sheet 11 of wrapping material to the closing tab 10.
  • the wrap 1 can comprise a reinforcing element 12, which is made of cardboard or rigid paperboard, is "U"-shaped and is arranged inside the wrap 1 in contact with the group 2 of cigarettes.
  • the function of the reinforcing element 12 is to provide greater stiffness and greater stability to the shape of the wrap 1 so as to prevent the wrap 1 from collapsing upon itself after extracting a portion of the cigarettes contained in wrap 1 thus complicating the extraction of the remaining cigarettes and in particular making the opening and subsequent re-closing of the closing tab 10 extremely complicated.
  • An additional function of the reinforcing element 12 is to provide a mechanical protection for the cigarettes during the folding of the sheet 11 of wrapping material, a mechanical and thermal protection for the cigarettes during the heat-sealing process of the overlapping portions of the sheet 11 of wrapping material, and a mechanical protection for the cigarettes during the handling of the wrap 1.
  • Figures 5-8 illustrate the folding steps of the sheet 11 of wrapping material around the group 2 of cigarettes, which has the two larger side walls 5 and 6 that are opposite to one another and are formed by the cylindrical side walls of the cigarettes, and the two upper and lower walls 3 and 4 that are opposite to one another and are formed by the tips of the cigarettes.
  • the group 2 of cigarettes is coupled to the flat sheet 11 of wrapping material by bringing the upper wall 3 of the group 2 of cigarettes in contact with the sheet 11 of wrapping material ( Figure 5 ); subsequently, the sheet of wrapping material is folded in a "U"-shape around the group 2 of cigarettes ( Figure 6 ) so that the "U"-folded sheet 11 of wrapping material is arranged in the area of the upper wall 3 and of the two larger side walls 5 and 6 of the group 2 of cigarettes and has two ends 13 and 14 which are parallel to the larger side walls 5 and 6 and protrude from the larger side walls 5 and 6 (i.e.
  • the sheet 11 of wrapping material is asymmetrically fed in front of the group 2 of cigarettes (i.e. the sheet 11 of wrapping material is caused to asymmetrically rest against the upper wall 3 of the group 2 of cigarettes) to define the two ends 13 and 14 which both protrude from the group 2 of cigarettes and have a different length (i.e. the end 13 is longer than the end 14 and the difference in length between the end 13 and the end 14 is equal to the width of the lower wall 4 of the group 2 of cigarettes) .
  • the end 13 is parallel to the larger side wall 6 of the group 2 of cigarettes and protrudes from the lower wall 4 of the group 2 of cigarettes continuing beyond the larger side wall 6; likewise, the end 14 is parallel to the larger side wall 5 of the group 2 of cigarettes and protrudes from the lower wall 4 of the group 2 of cigarettes, continuing beyond the larger side wall 5.
  • the end 13 is folded by 90° relative to the larger side wall 6 of the group 2 of cigarettes and against the lower wall 4 of the group 2 of cigarettes and, at the same time, a final part of the end 13 is folded by 90° to give the end 13 an "L"-shape and, hence, arrange the final part of the end 13 parallel and resting on the end 14 (which does not undergo any folding, in this step, i.e. it remains parallel to the larger side wall 5) thus giving the sheet 11 of wrapping material a tubular shape; in other words at the same time (i.e.
  • the end 13 is folded by 90° into two distinct points: a first folding by 90° around the edge between the larger side wall 6 and the lower 4 wall and a second folding in the area of the edge between the larger side wall 5 and the lower wall 4 (i.e. near the end 14) so as to give the end 13 an "L"-shape and to support the final part of the end 13 against the end 14.
  • a tubular shape is given having two open side edges in the area of the smaller side walls 7 and 8 of the group 2 of cigarettes.
  • the overlapping portions of the ends 13 and 14 are heat-sealed to one another so as to stabilize the tubular shape of the sheet 11 of wrapping material and form a sealing fin F.
  • the ends 13 and 14 overlapped and heat-sealed to one another i.e. the sealing fin F
  • the ends 13 and 14 overlapped and heat-sealed to one another are folded by 90° against the lower wall 4 of the group 2 of cigarettes (as illustrated in Figure 9 ) and with the interposition of part of the sheet 11 of wrapping material; alternatively, the ends 13 and 14 overlapped and heat-sealed one to the other (i.e. the sealing fin F) are folded by 180° against the larger side wall 5 of the group 2 of cigarettes (as illustrated in Figure 10 ) and with the interposition of part of sheet 11 of wrapping material.
  • number 15 denotes, as a whole, a packer machine to produce the wrap 1 for cigarettes illustrated in Figure 1 following the wrapping steps illustrated in Figures 5-9 .
  • the packer machine 15 can comprise only the components illustrated in Figure 11 (in this case each wrap 1, described above, is a finished product and can be directly marketed); alternatively, the packer machine 15 can comprise further components of a known type to wrap, around each wrap 1, a respective outer casing which encloses the wrap 1 and can be formed by an outer sheet of wrapping material folded around the wrap 1 and cup-shaped (soft type packet of cigarettes), or it can be formed by a rigid box with a hinged lid formed by folding a rigid blank around the wrap 1 (rigid type packet of cigarettes).
  • the packer machine 15 comprises a forming unit 16 in which the group 2 of cigarettes are formed in succession, a preliminary folding unit 17 in which a corresponding sheet 11 of wrapping material is "U"-folded around each group 2 of cigarettes, a transverse folding unit 18 in which each sheet 11 of wrapping material is transversely folded in the area of the bottom wall 4 of the respective group 2 of cigarettes so as to form a tubular wrap, and a longitudinal folding unit 19 in which each sheet 11 of wrapping material is longitudinally folded in the area of the smaller side walls 7 and 8 of the respective group 2 of cigarettes to complete the forming of the wrap 1.
  • the packer machine 15 comprises a wrapping conveyor 20, which comprises a plurality of pockets (known and not illustrated) that are suited to house corresponding groups of cigarettes and are step-fed (that is, with a law of motion which cyclically alternates a movement step and a rest step) along a wrapping path P1 throughout the forming unit 16 and the preliminary folding unit 17.
  • the pockets project outwards from the wrapping conveyor 20, i.e. each pocket is fixed to the wrapping conveyor 20 only in the area of a first end, and a second end opposite the first end is free of constraints from the wrapping conveyor 20 and relatively set apart from the wrapping conveyor 20 itself.
  • the wrapping conveyor 20 comprises a belt wound around end pulleys (one of which is motorized) and moves by-step along a closed loop path; alternatively, the wrapping conveyor 20 comprises a drum which is mounted so as to rotate around a central rotation axis.
  • the forming unit 16 for the groups 2 of cigarettes comprises a hopper (schematically illustrated) provided with three outlet mouths to simultaneously feed three groups 2 of cigarettes to respective pockets of the wrapping conveyor 20 which advances by-step along the wrapping path P1.
  • the preliminary folding unit 17 is arranged along the wrapping conveyor 20 (i.e. along the wrapping path P1) downstream of the forming unit 16.
  • each group 2 of cigarettes carried by a pocket is coupled to the corresponding flat sheet 11 of wrapping material by resting the sheet 11 of wrapping material against the upper wall 3 of the group 2 of cigarettes (as illustrated in Figure 5 ); subsequently, the sheet 11 of wrapping material is folded in a "U"-shape around the group 2 of cigarettes (as illustrated in Figure 6 ).
  • the sheet 11 of wrapping material can immediately take the shape illustrated in Figure 6 (i.e. in which both sides of the sheet 11 of wrapping material adhere to the larger side walls 5 and 6 of the group 2 of cigarettes thus forming folding angles of 90°), or (as illustrated in Figure 11 ) the sheet 11 of wrapping material can initially assume a more open shape wherein one side of the sheet 11 of wrapping material is raised relative to the larger side wall 5 or 6 of the group 2 of cigarettes thus forming a folding angle greater than 90° and therefore can take the final shape illustrated in Figure 6 (i.e. in which both sides of the sheet 11 of wrapping material adhere to the larger side walls 5 and 6 of the group 2 of cigarettes thus forming folding angles of 90°) when the group 2 of cigarettes leaves the corresponding pocket of the wrapping conveyor 20 together with the sheet 11 of wrapping material.
  • the transverse folding unit 18 comprises a wrapping conveyor 21, which receives in succession the wraps 1 (each formed by a sheet 11 of wrapping material "U"-folded around a corresponding group 2 of cigarettes) from the wrapping conveyor 20 in a transfer station S1 and feeds in succession the wraps 1 along a folding path P2 which is circular.
  • the wrapping conveyor 21 comprises a wrapping drum 22 which rotates by-step (that is, with a law of motion which cyclically alternates a movement step and a rest step) around a central rotation axis 23 and is provided with a plurality of peripheral pockets each suited to house a corresponding partially formed wrap 1 (i.e. a group 2 of cigarettes partially wrapped in a sheet 11 of wrapping material).
  • each group 2 of cigarettes, wrapped in the "U"-folded sheet 11 of wrapping material, is inserted into a pocket of the wrapping drum 22 (i.e. into a pocket of the wrapping conveyor 21), which is fed along the wrapping path P2 to perform the folding of the two ends 13 and 14 and thus to perform the heat-sealing process which forms the sealing fin F.
  • the sealing fin F i.e. the final part of the end 13 and the end 14, are arranged parallel to the wrapping path P2 (at least until the heat-sealing process has ended, i.e. at least until the sealing fin F is completely formed).
  • the group 2 of cigarettes when the group 2 of cigarettes is arranged in a pocket of the wrapping drum 22 (i.e. in a pocket of the wrapping conveyor 21), the two larger side walls 5 and 6 of the group 2 of cigarettes are arranged parallel to the wrapping path P2, the two smaller side walls 7 and 8 of the group 2 of cigarettes are arranged perpendicular to the wrapping path P2, and the upper wall 3 and the lower wall 4 of the group 2 of cigarettes are arranged parallel to the wrapping path P2.
  • a folding device 24 is arranged immediately downstream of the transfer station S1, which performs the double folding of the end 13 of the sheet 11 of wrapping material illustrated in Figure 7 and described above, which gives the end 13 an "L"-shape; in other words, the folding device 24 folds the end 13 by 90° relative to the larger side wall 6 of the group 2 of cigarettes, and at the same time, folds the final part of the end 13 in an "L"-shape so as to arrange the final part of the end 13 against the end 14 which does not undergo any type of folding, at this step.
  • the folding device 24 is of a passive type (i.e. is completely devoid of moving parts) and comprises only fixed folding helixes.
  • a sealing device 25 is arranged, which performs the heat-sealing of the overlapping portions of the ends 13 and 14 (i.e. forms the sealing fin F) so as to stabilize the tubular shape of the sheet 11 of wrapping material as illustrated in Figure 8 .
  • the sealing device 25 comprises a sealing gripper 26 with two moveable and heated jaws 27: during the advancing step of the wrapping conveyor 21, the sealing gripper 26 is opened (i.e. the two jaws 27 are relatively far apart one from the other) so as to allow the ends 13 and 14 of the sheet 11 of wrapping material (i.e.
  • sealing fin F to pass through the sealing gripper 26 without rubbing whereas during the rest step of the wrapping conveyor 21 the sealing gripper 26 is closed (i.e. the two jaws 27 are pushed one against the other with a certain force to tighten, in between, the ends 13 and 14 of the sheet 11 of wrapping material) so as to perform the heat-sealing process (as a result of the simultaneous application of heat and pressure) of the overlapping portions of the ends 13 and 14 of the sheet 11 of wrapping material.
  • a single sealing device 25 is provided, i.e. a sealing gripper 26, which is arranged in a fixed position along the wrapping conveyor 21, i.e.
  • all the wraps 1 are heat-sealed in the area of the ends 13 and 14 of the sheet 11 of wrapping material (i.e. the sealing fins F) by a single common sealing device 25.
  • the folding device 24 only performs the folding of the end 13 of the sheet 11 of wrapping material thus giving to the end 13 itself an "L"-shape (as illustrated in Figure 7 ) leaving the sealing device 25 the task of performing the heat-sealing of the overlapping portions of the ends 13 and 14.
  • the folding device 24 can also comprise (at least) one heated element for simultaneously performing both the folding of the end 13 of the sheet 11 of wrapping material thus giving to the end 13 itself an "L"-shape (as illustrated in Figure 7 ), and an initial heat-sealing of the overlapping portions of the ends 13 and 14; thereafter, the sealing device 25 completes the heat-sealing of the overlapping portions of the ends 13 and 14 started by the folding device 24.
  • the transverse folding unit 18 comprises a single sealing device 25 arranged immediately downstream of the folding device 24; according to a different and perfectly equivalent embodiment, the transverse folding unit 18 comprises two or more (typically no more than three) sealing devices 25 arranged in succession immediately downstream of the folding device 24.
  • a folding device 28 is arranged, which performs the folding by 90° of the flaps 13 and 14 overlapped and heat-sealed to one another (i.e. of the sealing fin F) illustrated in Figure 9 ; in other words, the folding device 28 folds by 90° the flaps 13 and 14 overlapped and heat-sealed to one another (i.e. the sealing fin F) against the lower wall 4 of the group 2 of cigarettes and with the interposition of part of the sheet 11 of wrapping material.
  • the folding device 28 is of a passive type (i.e. it is completely devoid of moving parts) and only comprises fixed folding helixes.
  • the wrapping conveyor 21 feeds each wrap 1 (formed, in the area of the wrapping conveyor 21, by a group 2 of cigarettes partially wrapped in a sheet 11 of wrapping material) so that the upper and lower walls 3 and 4 and the larger side walls 5 and 6 of the group 2 of cigarettes are parallel to the wrapping path P2 and the smaller side walls 7 and 8 of the group 2 of cigarettes are perpendicular to the wrapping path P2; in other words, the wrapping conveyor 21 feeds each wrap 1 so that the ends 13 and 14 of the sheet 11 of wrapping material (i.e. the sealing fin F) are (at least until the heat-sealing process) parallel to the wrapping path P2.
  • each wrap 1 has a tubular shape having two side edges open in the area of the smaller side walls 7 and 8 of the group 2 of cigarettes.
  • the longitudinal folding unit 19 comprises a wrapping conveyor (known and not illustrated), which receives the wraps 1 in succession (each formed by a sheet 11 of wrapping material folded in a tubular shape around a corresponding group 2 of cigarettes) from the longitudinal wrapping conveyor 21 in a transfer station S2 and advances along a path P3 that is straight and is arranged perpendicular to the folding path P2.
  • the transfer station S2 is opposite to the transfer station S1 and is arranged at 180° along the wrapping path P2 relative to the transfer station S1.
  • the longitudinal folding unit 19 comprises folding devices (known and not illustrated), which fold, in a known manner, the two open side edges of each wrap 1 to complete the formation of the wrap 1 itself; preferably, the folding devices of the longitudinal folding unit 19 are passive (i.e. they are completely devoid of moving parts) and only comprise fixed folding helixes.
  • the longitudinal folding unit 19 comprises sealing devices (known and not illustrated) which stabilize each wrap 1 by means of heat-sealing the overlapping portion of the sheet 11 of wrapping material in the area of the smaller side walls 7 and 8 of the group 2 of cigarettes.
  • the transverse folding unit 18 the group 2 of cigarettes are transversely fed (i.e. the cigarettes are arranged perpendicular to the wrapping path P2), while along the longitudinal folding unit 19 the group 2 of cigarettes are longitudinally fed (i.e. the cigarettes are arranged parallel to the wrapping path P3).
  • the longitudinal folding unit 19 comprises a straight wrapping conveyor, and having pushers that feed the wraps 1 through a fixed folding tunnel; alternatively, the longitudinal folding unit 19 comprises a circular wrapping conveyor (i.e. a wrapping drum, which is mounted so as to rotate around a central rotation axis).
  • a circular wrapping conveyor i.e. a wrapping drum, which is mounted so as to rotate around a central rotation axis.
  • the preliminary folding unit 17 comprises a feeding conveyor, which feeds the sheets 11 of wrapping material in succession along a straight feeding path P4; by way of example, the feeding conveyor comprises two conveyor belts which are closed in a loop, arranged in the area of opposite ends of the sheets 11 of wrapping materials, and hold the sheets 11 of wrapping materials by suction.
  • the feeding path P4 has a parallel section and is adjacent to the wrapping path P1 in the area of a feeding station S3 in which each sheet 11 of wrapping material is released by the feeding conveyor to a pocket of the wrapping conveyor 20 so as to be coupled, as described above, to a corresponding group 2 of cigarettes.
  • each sheet 11 of wrapping material is fed flat in the area of the transfer station S1 and folds in a "U"-shape around the group 2 of cigarettes as described above while the group 2 of cigarettes itself enters a pocket of the wrapping drum 22.
  • each reinforcing element 12 is fed to the corresponding pocket of the wrapping conveyor 20 upstream of the hoppers i.e. before feeding the group 2 of cigarettes to the pocket.
  • each group 2 of cigarettes is coupled to the corresponding flat sheet 11 of wrapping material by resting a side part of the sheet 11 of wrapping material against the larger side wall 5 of the group 2 of cigarettes; successively, the sheet 11 of wrapping material is "U"-folded around the corresponding group 2 of cigarettes so as to form a U-shaped wrap 1 having the two ends 13 and 14 projecting out from the group 2 of cigarettes.
  • the ends 13 and 14 overlapped and heat-sealed one to the other i.e. the sealing fin F
  • each pocket of the wrapping drum 22 is provided with a pair of holding devices 29 which are arranged on opposite sides of the pocket and are moveable between an open position (held in the area of the transfer stations S1 and S2) wherein the two holding devices 29 are relatively set apart from one another so as to allow the partially formed wrap 1 to get into/out of the pocket without interfering with the holding devices 29 and a closed position (held outside the transfer stations S1 and S2) wherein the two holding devices 29 are relatively close to one another to "grip" the group 2 of cigarettes, and therefore keep the group 2 of cigarettes laterally compressed to prevent the group 2 of cigarettes from deforming.
  • the function of the pair holding devices 29 of each pocket of the wrapping drum 22 is to keep the group 2 of cigarettes laterally compressed during the advancement of the wrapping drum 22 without, at the same time, subjecting the sheet 11 of wrapping material to unwanted folds in the area of the open side edges.
  • the pockets of the wrapping drum 22 can comprise fixed profiles which first produce this initial folding of the sheet 11 of wrapping material (i.e. fold the "nibs"), and then guarantee the lateral compression of the group 2 of cigarettes so as to prevent the group 2 of cigarettes from deforming.
  • a straight wrapping conveyor 30 is provided (for example a belt conveyor) provided with pockets 31, which are suited to receive and hold the wraps 1.
  • the wrapping conveyor 30 extends along the wrapping path P3 and extends from the transfer station S1, throughout the transfer station S2, and along the entire longitudinal folding unit 19.
  • the wrapping conveyor 30 is arranged perpendicular to the rotation axis 23 of the wrapping drum 22 and passes through the rotation axis 23 of the wrapping drum 22 (i.e. crosses the wrapping drum 22 from one side to the other by passing through the rotation axis 23 of the wrapping drum 22 and passing both through the transfer station S1 and through the transfer station S2).
  • the main function of the wrapping conveyor 30 is to feed the wraps 1 along the entire longitudinal folding unit 19, i.e. to receive the wraps 1 from the wrapping drum 22 in the transfer station S2 and to feed the wraps 1 along the wrapping path P3. It is important to note that in the transfer station S2, a pocket 31 of the wrapping conveyor 30 passes through a pocket of the wrapping drum 22 thus picking up directly (i.e. without further transfer/pusher elements) a corresponding wrap 1.
  • the further function of the wrapping conveyor 30 is to transfer the wraps 1 from the preliminary folding unit 17 to the transverse folding unit 18 in the transfer station S1, i.e.
  • a pocket 31 of the wrapping conveyor 30 passes through a pocket of the wrapping conveyor of the preliminary folding unit 17 to pick up the wrap 1 and then passes through a pocket of the wrapping drum 22 to release the wrap 1.
  • the wrapping conveyor 30 is suited to insert a group 2 of cigarettes coupled to a sheet 11 of wrapping material in a pocket of the wrapping drum 22 in the transfer station S1, and the wrapping conveyor 30 is suited to pick up a group 2 of cigarettes coupled to a sheet 11 of wrapping material from a pocket of the wrapping drum 22 in the transfer station S2 opposite to the transfer station S1 and is arranged at 180° along the wrapping path P2 relative to the transfer station S1.
  • straight wrapping conveyor 30 illustrated in Figure 14 can be used both in the embodiment illustrated in Figure 13 and in the embodiment illustrated in Figure 11 .
  • Figure 15 illustrates an alternative of the embodiment illustrated in Figure 11 , wherein the conveyor 21 of the transverse folding unit 18 is straight and not circular.
  • Figure 16 illustrates an alternative of the embodiment illustrated in Figure 13 , wherein the conveyor 21 of the transverse folding unit 18 is straight and not circular.
  • each pocket of the wrapping conveyor 20 is formed by a hollow folding spindle which is suited to contain a group 2 of cigarettes and around which the sheet 11 of wrapping material is initially "U"-folded; in other words, a sheet 11 of wrapping material is initially "U"-folded (with the same methods as described above) around a folding spindle (forming a pocket of the wrapping conveyor 20), which contains a group 2 of cigarettes and the group 2 of cigarettes is coupled to the sheet 11 of wrapping material already "U"-folded against the folding spindle in the area of the transfer station S1 (i.e.
  • the packer machine 15 described above has many advantages.
  • the packer machine described above is able to operate quickly (i.e. with a high hourly productivity rate) while guaranteeing a high and above all constant production quality.
  • This result is achieved due the fact that both in the transverse folding unit 18 and in the longitudinal folding unit 19 there is a single common sealing device, which is on the outside of the corresponding wrapping conveyor (i.e. does not move along with the wrapping conveyor but remains always in the same position) and therefore operates with all the wraps 1. Due to this arrangement, during the fine adjustment step of the packer machine 15, it is sufficient to finely adjust a single common sealing device for each folding unit 18 and 19 and hence it is usually possible to obtain higher quality standards.
  • the production of the wrapping conveyor 21 of the transverse folding unit 18 is very simple since the wrapping conveyor 21 is not required to support moveable heating parts; among other things, it is important to emphasize that it is not necessary to supply electrical power to the wrapping conveyor 21 as on the wrapping conveyor 21 no heating elements are provided.
  • the replacement operation of the sealing device 25 of the transverse folding unit 18 (in case of change of size or maintenance) is greatly simplified and faster, since the sealing device 25 comprises only one sealing gripper 26 common to all the pockets of the wrapping drum 22.
  • the folding methods of the sheet 11 of wrapping material around the group 2 of cigarettes allow to improve the final quality of the folding process, as they allows obtaining a very precise positioning of the sheet 11 of wrapping material relative to the group 2 of cigarettes also when rapidly operating (i.e. with a high hourly productivity rate); consequently, in the wraps 1, the pull-out opening 9 (overlapped by the reusable closing tab 10) is always exactly in the desired position.
  • the embodiment illustrated in the attached figures refers to the manufacturing of a packet of cigarettes but the present invention is applicable without any substantial modifications to the manufacturing of any other type of packet of tobacco articles (for example, a packet of cigars, a packet of liquid vaporizing type electronic cigarettes, a packet of new generation cigarettes without tobacco combustion).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)
  • Basic Packing Technique (AREA)

Claims (13)

  1. Procédé d'enveloppement pour plier une feuille (11) de matériau d'enveloppement autour d'un groupe (2) d'articles de tabac ayant une forme parallélépipédique, qui a une paroi supérieure (3) et une paroi inférieure (4) qui sont parallèles et opposées l'une à l'autre, deux parois latérales plus grandes (5, 6) qui sont parallèles et opposées l'une à l'autre, et deux parois latérales plus petites (7, 8) qui sont parallèles et opposées l'une à l'autre ; le procédé d'enveloppement comprend les étapes consistant à :
    placer la feuille pliée en "U" (11) de matériau d'enveloppement autour du groupe (2) d'articles de tabac, de sorte que la feuille pliée en "U" (11) de matériau d'enveloppement soit agencée dans la zone de la paroi supérieure (3) et des deux parois latérales plus grandes (5, 6) du groupe (2) d'articles de tabac et ait deux extrémités (13, 14) qui sont parallèles aux parois latérales plus grandes (5, 6) et qui font saillie à partir des parois latérales plus grandes (5, 6) ;
    superposer les deux extrémités (13, 14) de la feuille (11) de matériau d'enveloppement l'une sur l'autre, donnant ainsi à la feuille (11) de matériau d'enveloppement une forme tubulaire ; et
    thermosceller les parties superposées des deux extrémités (13, 14) de la feuille (11) de matériau d'enveloppement, de manière à stabiliser la forme tubulaire de la feuille (11) de matériau d'enveloppement et à former une ailette d'étanchéité (F) ;
    où les deux extrémités (13, 14) sont superposées et thermoscellées tandis que le groupe (2) d'articles de tabac couplé à la feuille (11) de matériau d'enveloppement est logé dans une première poche d'un premier convoyeur d'enveloppement (21), qui est acheminé le long d'un trajet d'enveloppement (P2) et comprend un tambour d'enveloppement (22), qui est monté de manière à tourner autour d'un axe de rotation central (23) ;
    où la première poche du premier convoyeur d'enveloppement (21) est orientée de sorte que l'ailette d'étanchéité (F), c'est-à-dire les parties superposées des deux extrémités (13, 14) de la feuille (11) de matériau d'enveloppement, soit agencée parallèlement au trajet d'enveloppement (P2) au moins jusqu'à la fin du processus de thermoscellage ;
    où un deuxième convoyeur d'enveloppement droit (30) est prévu, qui est pourvu d'une deuxième poche (31), qui est appropriée pour recevoir et maintenir le groupe (2) d'articles de tabac couplé à la feuille (11) de matériau d'enveloppement et est approprié pour insérer le groupe (2) d'articles de tabac couplé à la feuille (11) de matériau d'enveloppement dans la première poche du tambour d'enveloppement (22) dans un premier poste de transfert (S1) ; et
    où le deuxième convoyeur d'enveloppement (30) est agencé perpendiculairement à l'axe de rotation (23) du tambour d'enveloppement (22) et passe à travers l'axe de rotation (23) du tambour d'enveloppement (22) ;
    le procédé d'enveloppement est caractérisé en ce que le deuxième convoyeur d'enveloppement (30) est approprié pour prélever le groupe (2) d'articles de tabac couplé à la feuille (11) de matériau d'enveloppement de la première poche du tambour d'enveloppement (22) dans un deuxième poste de transfert (S2), qui est opposé au premier poste de transfert (S1) et est agencé à 180° le long du trajet d'enveloppement (P2) par rapport au premier poste de transfert (S1).
  2. Procédé d'enveloppement selon la revendication 1, dans lequel, lorsque le groupe (2) d'articles de tabac est agencé dans la première poche du premier convoyeur d'enveloppement (21) :
    les deux parois latérales plus grandes (5, 6) du groupe (2) d'articles de tabac sont agencées parallèlement au trajet d'enveloppement (P2) ;
    les deux parois latérales plus petites (7, 8) du groupe (2) d'articles de tabac sont agencées perpendiculairement au trajet d'enveloppement (P2) ; et
    la paroi supérieure (3) et la paroi inférieure (4) du groupe (2) d'articles de tabac sont agencées parallèlement au trajet d'enveloppement (P2).
  3. Procédé d'enveloppement selon la revendication 1 ou 2, dans lequel un premier dispositif de pliage (24) est prévu, qui est agencé sur la partie extérieure du premier convoyeur d'enveloppement (21) et plie les deux extrémités (13, 14) de la feuille (11) de matériau d'enveloppement l'une contre l'autre.
  4. Procédé d'enveloppement selon la revendication 1, 2 ou 3, dans lequel un dispositif d'étanchéité (25) est prévu, qui est agencé sur la partie extérieure du premier convoyeur d'enveloppement (21) et scelle thermiquement les parties superposées des deux extrémités (13, 14) de la feuille (11) de matériau d'enveloppement de manière à former l'ailette d'étanchéité (F), lorsque la première poche du premier convoyeur d'enveloppement (21) se trouve dans la zone du dispositif d'étanchéité (25).
  5. Procédé d'enveloppement selon l'une des revendications 1 à 4, dans lequel un deuxième dispositif de pliage (28) est prévu, qui est agencé sur la partie extérieure du premier convoyeur d'enveloppement (21) et qui plie l'ailette d'étanchéité (F), lorsque la première poche du premier convoyeur d'enveloppement (21) se trouve dans la zone du deuxième dispositif de pliage (28).
  6. Procédé d'enveloppement selon l'une des revendications 1 à 5, dans lequel, dans la poche du premier convoyeur d'enveloppement (21), une paire de dispositifs de maintien (29) sont prévus, qui sont agencés sur des côtés opposés de la poche et qui sont mobiles entre une position ouverte, dans laquelle les deux dispositifs de maintien (29) sont relativement éloignés l'un de l'autre, de manière à permettre à la feuille (11) de matériau d'enveloppement couplée au groupe (2) d'articles de tabac d'entrer dans/sortir de la poche sans interférer avec les dispositifs de maintien (29), et une position fermée dans laquelle les deux dispositifs de maintien (29) sont relativement proches l'un de l'autre, de manière à verrouiller le groupe (2) d'articles de tabac entre eux tout en étant en appui contre les parois latérales plus petites (7, 8) du groupe (2) d'articles de tabac.
  7. Procédé d'enveloppement selon l'une des revendications 1 à 6, comprenant l'étape supplémentaire consistant à plier la première extrémité (13) de 90° contre la paroi inférieure (4) du groupe (2) d'articles de tabac et, en même temps, à plier une partie finale de la première extrémité (13) de 90°, de manière à donner à la première extrémité (13) une forme en "L" et, par conséquent, agencer la partie finale de la première extrémité (13) parallèlement à la deuxième extrémité (14) et en étant en appui contre la deuxième extrémité (14), qui reste parallèle à la deuxième paroi latérale plus grande (5), donnant ainsi à la feuille (11) de matériau d'enveloppement une forme tubulaire.
  8. Procédé d'enveloppement selon la revendication 7, dans lequel la feuille (11) de matériau d'enveloppement est amenée à s'appuyer de manière asymétrique contre la paroi supérieure (3) du groupe (2) d'articles de tabac, de sorte qu'une première extrémité (13) faisant saillie à partir d'une première paroi latérale plus grande (6) soit plus longue qu'une deuxième extrémité (14) faisant saillie à partir d'une deuxième paroi latérale plus grande (5).
  9. Procédé d'enveloppement selon la revendication 8, dans lequel la différence de longueur entre la première extrémité (13) et la deuxième extrémité (14) est égale à la largeur de la paroi inférieure (4) du groupe (2) d'articles de tabac.
  10. Procédé d'enveloppement selon l'une des revendications 1 à 9 et comprenant l'étape supplémentaire consistant à plier l'ailette d'étanchéité (F) de 90° contre la paroi inférieure (4) du groupe (2) d'articles de tabac.
  11. Procédé d'enveloppement selon l'une des revendications 1 à 9 et comprenant l'étape supplémentaire consistant à plier l'ailette d'étanchéité (F) de 180° contre la deuxième paroi latérale plus grande (5) du groupe (2) d'articles de tabac.
  12. Procédé d'enveloppement selon l'une des revendications 1 à 11, dans lequel la feuille (11) de matériau d'enveloppement a une ouverture de retrait de cigarette (9), qui est fermée par une languette de fermeture réutilisable (10) et est agencée en partie dans la zone d'une paroi latérale plus grande (5) du groupe (2) d'articles de tabac et en partie dans la zone de la paroi supérieure (3) du groupe (2) d'articles de tabac.
  13. Machine empaqueteuse (15) pour plier une feuille (11) de matériau d'enveloppement autour d'un groupe (2) d'articles de tabac ayant une forme parallélépipédique, qui a une paroi supérieure (3) et une paroi inférieure (4) qui sont parallèles et opposées l'une à l'autre, deux parois latérales plus grandes (5, 6) qui sont parallèles et opposées l'une à l'autre, et deux parois latérales plus petites (7, 8) qui sont parallèles et opposées l'une à l'autre ; la machine empaqueteuse (15) comprend :
    un premier dispositif de pliage pour placer la feuille pliée en "U" (11) de matériau d'enveloppement autour du groupe (2) d'articles de tabac, de sorte que la feuille pliée en "U" (11) de matériau d'enveloppement soit agencée dans la zone de la paroi supérieure (3) et des deux parois latérales plus grandes (5, 6) du groupe (2) d'articles de tabac et ait deux extrémités (13, 14) qui sont parallèles aux parois latérales plus grandes (5, 6) et qui font saillie à partir des parois latérales plus grandes (5, 6) ;
    un deuxième dispositif de pliage (24) pour superposer les deux extrémités (13, 14) de la feuille (11) de matériau d'enveloppement l'une sur l'autre, donnant ainsi à la feuille (11) de matériau d'enveloppement une forme tubulaire ;
    un dispositif d'étanchéité (25) pour thermosceller les parties superposées des deux extrémités (13, 14) de la feuille (11) de matériau d'enveloppement, de manière à stabiliser la forme tubulaire de la feuille (11) de matériau d'enveloppement et à former une ailette d'étanchéité (F) ;
    un premier convoyeur d'enveloppement (21), qui est acheminé le long d'un trajet d'enveloppement (P2) et comprend un tambour d'enveloppement (22), qui est monté de façon à tourner autour d'un axe de rotation central (23) et est pourvu d'une première poche, qui loge le groupe (2) d'articles de tabac couplé à la feuille (11) de matériau d'enveloppement tandis que les deux extrémités (13, 14) sont superposées et scellées l'une à l'autre ; et
    un deuxième convoyeur d'enveloppement droit (30) qui est pourvu d'une deuxième poche (31) appropriée pour recevoir et maintenir le groupe (2) d'articles de tabac couplé à la feuille (11) de matériau d'enveloppement et le convoyeur est approprié pour insérer le groupe (2) d'articles de tabac couplé à la feuille (11) de matériau d'enveloppement dans la première poche du tambour d'enveloppement (22) dans un premier poste de transfert (S1) ;
    où la première poche du premier convoyeur d'enveloppement (21) est orientée de sorte que l'ailette d'étanchéité (F), c'est-à-dire les parties superposées des deux extrémités (13, 14) de la feuille (11) de matériau d'enveloppement, soit agencée parallèlement au trajet d'enveloppement (P2) au moins jusqu'à la fin du processus de thermoscellage ;
    où le deuxième convoyeur d'enveloppement (30) est agencé perpendiculairement à l'axe de rotation (23) du tambour d'enveloppement (22) et passe à travers l'axe de rotation (23) du tambour d'enveloppement (22) ;
    la machine empaqueteuse (15) est caractérisée en ce que le deuxième convoyeur d'enveloppement (30) est approprié pour prélever le groupe (2) d'articles de tabac couplé à la feuille (11) de matériau d'enveloppement de la première poche du tambour d'enveloppement (22) dans un deuxième poste de transfert (S2), qui est opposé au premier poste de transfert (S1) et est agencé à 180° le long du trajet d'enveloppement (P2) par rapport au premier poste de transfert (S1).
EP17175115.9A 2016-06-08 2017-06-08 Procédé et machine d'emballage pour plier une feuille thermosoudable de matériau d'emballage autour d'un groupe d'articles de tabac Active EP3254974B1 (fr)

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EP3728049A1 (fr) * 2017-12-21 2020-10-28 I.M.A. Industria Macchine Automatiche S.p.A. Procédé de fabrication d'enveloppes hermétiques et machine correspondante
IT201800000568A1 (it) * 2018-01-05 2019-07-05 Gd Spa Metodo di incarto e macchina impacchettatrice per realizzare un incarto sigillato di articoli da fumo stabilizzato mediante termosaldatura.
IT201800000570A1 (it) * 2018-01-05 2019-07-05 Gd Spa Metodo di incarto e macchina impacchettatrice per realizzare un incarto sigillato di articoli da fumo stabilizzato mediante termosaldatura
CN108248930B (zh) * 2018-01-29 2020-02-14 宁波市金龙机械实业有限公司 产品的薄膜裹包热封装置和产品的薄膜裹包热封方法
CN110053819B (zh) * 2019-03-04 2020-09-04 红塔烟草(集团)有限责任公司 一种focke350包装机组双内包内衬纸折叠方法
DE102019110153A1 (de) * 2019-04-17 2020-10-22 Focke & Co. (Gmbh & Co. Kg) Packung für Produkte der Zigarettenindustrie sowie Verfahren und Vorrichtung zur Herstellung derselben

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GB592746A (en) * 1945-04-19 1947-09-26 Alfred German Rose Improvements in the packaging of articles
DE2854443C2 (de) 1978-12-16 1985-05-30 Focke & Co, 2810 Verden Packung, insbesondere quaderförmige Packung für Zigaretten, Zigarillos oder dergleichen
EP1459983A1 (fr) * 2003-03-19 2004-09-22 TOPACK Verpackungstechnik GmbH Procédé pour l'enveloppement des paquets des produits dans l'industrie du tabac
ITBO20060374A1 (it) * 2006-05-17 2007-11-18 Azionaria Costruzioni Acma Spa Metodo e dispositivo per l'incarto di prodotti
ITBO20080327A1 (it) * 2008-05-26 2009-11-27 Gd Spa Metodo ed unita per ripiegare un foglio di incarto attorno ad un gruppo di sigarette.
IT1394365B1 (it) 2009-05-26 2012-06-15 Gd Spa Metodo e unità di incarto per ripiegare un foglio di incarto attorno ad un gruppo di sigarette.
DE112015000960T5 (de) * 2014-02-25 2016-12-15 G.D. Società per Azioni Verpackungsverfahren und -einheit zum Falten einer Lage eines Verpackungsmaterials um ein parallelepipedförmiges Produkt

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