EP3181344B1 - Procédé et dispositif de pliage d'un flan de matériau d'emballage utilisé pour réaliser un cadre pour un paquet rigide pour des articles pour fumeurs - Google Patents

Procédé et dispositif de pliage d'un flan de matériau d'emballage utilisé pour réaliser un cadre pour un paquet rigide pour des articles pour fumeurs Download PDF

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Publication number
EP3181344B1
EP3181344B1 EP16202614.0A EP16202614A EP3181344B1 EP 3181344 B1 EP3181344 B1 EP 3181344B1 EP 16202614 A EP16202614 A EP 16202614A EP 3181344 B1 EP3181344 B1 EP 3181344B1
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EP
European Patent Office
Prior art keywords
blank
panel
strip
side panel
sector
Prior art date
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Active
Application number
EP16202614.0A
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German (de)
English (en)
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EP3181344A1 (fr
Inventor
Michele Ferrari
Luca Federici
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GD SpA
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GD SpA
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Publication date
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Priority to PL16202614T priority Critical patent/PL3181344T3/pl
Publication of EP3181344A1 publication Critical patent/EP3181344A1/fr
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Publication of EP3181344B1 publication Critical patent/EP3181344B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies
    • B31B50/442—Folding sheets, blanks or webs by plungers moving through folding dies having several cooperating plungers and dies fitted on a rotating table or on moving chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0004—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making inserts, e.g. partitions, for boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
    • B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular
    • B65D85/10—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular for cigarettes
    • B65D85/1036—Containers formed by erecting a rigid or semi-rigid blank
    • B65D85/1045—Containers formed by erecting a rigid or semi-rigid blank having a cap-like lid hinged to an edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed

Definitions

  • This invention relates to a method and a device folding a blank of wrapping material used to make a frame for a rigid packet for smokers' articles. More specifically, the invention relates to a method and a device folding a blank of wrapping material used to make a frame for a rigid packet for smokers' articles configured to house a group of cigarettes of reduced size, that is, a group of cigarettes which is smaller in size than the total volume of the space inside the packet.
  • a group of cigarettes of reduced size that is, a group of cigarettes which is smaller in size than the total volume of the space inside the packet.
  • Cigarette packets are known which are configured to house groups of cigarettes of reduced size. Inside a packet of this kind there is a frame or filler element designed to occupy the part of the packet interior left free by the group of cigarettes.
  • the filler element fills in the gaps inside the packet of cigarettes so that the group of cigarettes in the packet does not "wobble".
  • Prior art filler elements are in the form of spacers designed to be placed inside the packet of cigarettes to occupy the empty space left by the group of cigarettes.
  • Patent application WO2015/114587 discloses a twin-pocket ("twin bundle") type of rigid packet for smokers' articles, where a collar inside the packet is made from a paperboard blank having a plurality of panels which must be folded two or more times to make a stabilizing frame designed to occupy the part of the packet interior left free by the group of cigarettes.
  • the frame described therein may, in some embodiments of it, have an at least partly tubular shape ( Figures 18-22 ). That patent application does not, however, offer any explicit indication as to how the stabilizing frame can be made: that is to say, it does not describe a method and a device for folding the panels of the paperboard blank a plurality of times.
  • Patent application EP2489501 (A1 ) discloses a device for forming packaging elements from flat blanks, that is, for forming parts or inserts for finished packages which may be in the form of lidded boxes.
  • the device comprises a drawing die and a fork-shaped punch, with adjustable elements, which pushes the blank through the die opening and opposing elements which at least initially accompany the folding of the side panels of the blank.
  • Each drawing die comprises at least one respective shaping member for shaping the strip and configured to engage the strip in such a way as to fold it to obtain the supporting element.
  • the shaping member is an element which obstructs the passage of the strip through the opening of the drawing die.
  • the insert thus formed is placed on an outfeed conveyor belt. As may be inferred from the accompanying drawings, however, it is a complex device which is not suitable for working at the high speeds required for current cigarette packing machines. Moreover, production of the resulting insert, illustrated in Figure 5b , requires a large quantity of wrapping material.
  • the numeral 1 in Figures 1 and 2 denotes in its entirety a rigid cigarette packet comprising an outer container 2 having the shape of a parallelepiped, and an inner wrapper 3, placed inside the container 2.
  • the rigid packet 1 is a packet 1 whose longitudinal edges are rounded or radiused.
  • the packet 1 comprises a group 11 of cigarettes enclosed in the inner wrapper 3.
  • the packet 1 is configured to house a group 11 of smokers' articles which is smaller in size than the total volume of the space inside the packet 1.
  • the outer container 2 has a lid 4 which is joined to the container 2 along a hinge 5 allowing it to rotate relative to the container 2 itself between an open condition and a closed condition and vice versa.
  • the lid 4 gives the outer container 2 the shape of a rectangular parallelepiped having a top wall 6 and a bottom wall 7 which are parallel and opposite to each other, two large side walls 8 and 9 which are parallel and opposite to each other, defining the front and rear walls of the packet 1, respectively, and two small side walls 10 which are parallel and opposite to each other, defining the respective flanks of the packet 1.
  • the packet 1 comprises a collar 12 which encloses the inner wrapper 3.
  • the collar 12 comprises a first and a second side wall 13 and 14, each of which is abutted against, and connected to, a respective flank 10 of the container 2, and a front wall 15 abutted against, and connected to, the front wall 8 of the container 2.
  • the collar 12 also comprises an upper edge and a lower edge which have the same profile. More specifically, at the front wall 15 of the collar 12, the upper edge has a U-shaped indentation 15b and the lower edge has a tongue 15a designed to come into contact with the bottom wall 7 of the container 2 of the packet 1 to reinforce the collar 12.
  • the collar 12 comprises a rear wall 16, which is opposite to the front wall 15 and abutted against and connected to, the rear wall 9 of the container 2, and an intermediate wall, or partition, 17 interposed between the side walls 13 and 14 of the collar 12.
  • the intermediate wall 17 is perpendicular to the front and rear walls 15 and 16 of the collar 12 and parallel to the side walls 13 and 14 of the collar 12.
  • the intermediate wall 17 divides the space inside the container 2 into a main chamber 18 adapted to receive the group of cigarettes 11 and a secondary chamber 19 occupying the rest of the space inside the container 2.
  • the intermediate wall 17, the rear wall 16, the second side wall 14 and at least part of the front wall 15 of the collar 12 define a frame or filler element 20 of the cigarette packet 1.
  • the frame 20 has a substantially tubular parallelepiped shape.
  • the collar 12 comprises a supporting element 21 for supporting the frame 20.
  • the supporting element 21 comprises a first wall 22 which abuts the intermediate wall 17 of the collar 12 and a second wall 23 which abuts the rear wall 16 of the collar 12.
  • first wall 22 of the supporting element 21 and the intermediate wall 17 of the collar 12 are connected to each other mechanically by a tuck-in joint.
  • the intermediate wall 17 of the collar 12 has a pair of cuts 24 which extend from the edge of the intermediate wall 17 towards the inside of the wall itself and each of which is configured to receive a portion of the first wall 22 of the supporting element 21. That portion of the first wall 22 remains interposed between the parts of the intermediate wall 17 alongside the respective cut 24, as illustrated in Figure 4 .
  • first wall 22 of the supporting element 21 and the intermediate wall 17 of the collar 12 are coupled to each other by adhesive connecting means, such as, for example, glue points.
  • the numeral 100 denotes in its entirety a blank of wrapping material used to make the collar 12 of the cigarette packet 1 comprising the frame 20.
  • the blank 100 is shaped in such a way as to be cuttable, without waste or offcuts, from a continuous web of wrapping material, not illustrated.
  • the blank 100 extends mainly along a longitudinal axis of extension L.
  • the blank 100 comprises a main panel 115 and a first and a second side panel 113, 120 which are parallel and opposite to each other and connected to the main panel 115 by a first and a second fold line 111, 112, respectively.
  • the first and second fold lines 111 and 112 are parallel to each other, in particular at right angles to the longitudinal axis of extension L.
  • the main panel 115 of the blank 100 will form the front wall 15 of the collar 12.
  • the first side panel 113 of the blank 100 will form the first side wall 13 of the collar 12.
  • the second side panel 120 of the blank 100 will form the frame 20 of the packet 1.
  • the second side panel 120 comprises a first, a second and a third sector 114, 116 and 117 connected to each other in succession by respective fold lines 118 and 119.
  • the third and fourth fold lines 118 and 119 are parallel to each other, in particular at right angles to the longitudinal axis of extension L.
  • the first, second, third and fourth fold lines 111, 112, 118 and 119 are parallel to each other, in particular at right angles to the longitudinal axis of extension L.
  • the first sector 114 of the second side panel 120 will form the second side wall 14 of the collar 12.
  • the second sector 116 of the second side panel 120 will form the rear wall 16 of the collar 12.
  • the third sector 117 of the second side panel 120 will form the intermediate wall 17 of the collar 12.
  • the third sector 117 of the second side panel 120 is intended to come into contact with the supporting element 21 to define the intermediate wall 17 of the collar 12.
  • the cuts 24 are made in the third sector 117.
  • the cuts 24 are preferably hook-shaped to form a stable tuck-in joint.
  • each hook-shaped cut 24 is directed outwards, defining end portions 130 of the zones of the third sector 117 on the outer side of the cuts 24.
  • end portions 130 adjacent to the cuts 24 are each located on the same side as the respective upper or lower edge of the collar 12.
  • the connecting means are adhesive connecting means the third sector 117 does not have the cuts 24 on it.
  • the blank 100 comprises an inner strip 121 which will form the supporting element 21 of the frame 20 of the packet 1.
  • the blank 100 has a first and a second through slit 125 and 126, each of which delimits the edges of the strip 121.
  • At least part of the first slit 125 runs along an inner portion of the main panel 115 and the remaining part along an inner portion of the second side panel 120, in particular along an inner portion of the first sector 114.
  • At least part of the second slit 126 runs along an inner portion of the main panel 115 and the remaining part along an inner portion of the second side panel 120, in particular along an inner portion of the first sector 114.
  • the first and second slits 125 and 126 comprise respective oblique stretches T1.
  • the first, oblique stretches T1 of the first and second slits 125 and 126 extend from the second fold line 112 to the third fold line 118 of the blank 100.
  • the first, oblique stretches T1 of the first and second slits 125 and 126 are inclined to the longitudinal axis of extension L.
  • the first, oblique stretches T1 of the first and second slits 125 and 126 extend in convergent directions.
  • the first, oblique stretches T1 of the first and second slits 125 and 126 extend in divergent directions.
  • the first, oblique stretches T1 of the first and second slits 125 and 126 make an obtuse angle with the second fold line 112 and an acute angle with the third fold line 118.
  • the first and second slits 125 and 126 comprise respective second, rectilinear stretches T2.
  • the second, rectilinear stretches T2 of the first and second slits 125 and 126 are parallel to the longitudinal axis of extension L of the blank 100.
  • the second, rectilinear stretches T2 of the first and second slits 125 and 126 extend along respective portions of the main panel 115.
  • the second, rectilinear stretches T2 of the first and second slits 125 and 126 extend from the second fold line 112 to the fifth fold line 127.
  • the blank 100 comprises engagement portions 124 of the second side panel 120, included between the respective oblique stretches T1 and the extension of the respective second, rectilinear stretches T2.
  • the engagement portions 124 of the first sector 114 are moved into a position which forms an undercut relative to the rectilinear extension of the second stretches T2 of the first and second slits 125 and 126.
  • These engagement portions 124 are substantially triangular in shape ( Figure 5 ).
  • the undercut portions 124 define means for engaging the second side panel 120 of the blank 100 during the steps of folding the blank 100 as described below.
  • the strip 121 comprises at least a first and a second panel 122 and 123 which will form the first and second walls 22 and 23 of the supporting element 21, respectively.
  • the first panel 122 is connected to the main panel 115 by a respective fold line 127, that is, the fifth fold line 127 of the blank 100.
  • the second panel 123 is connected to the second side panel 120 by a respective fold line 128, that is, the sixth fold line 128 of the blank 100.
  • the sixth fold line 128 of the blank 100 is part of the third fold line 118.
  • the first and second panels 122 and 123 of the strip 121 are connected to each other by a shared fold line 129.
  • the respective fold lines of the first and second panels 122 and 123 of the strip 121 are parallel to each other, in particular at right angles to the longitudinal axis of extension L.
  • the first, oblique stretches T1 of the first and second slits 125 and 126 at least partly delimit the edges of one of either the first or the second panel 122 or 123 of the strip 121.
  • the first, oblique stretches T1 at least partly delimit the edges of the second panel 123 of the strip 121.
  • the second, rectilinear stretches T2 of the first and second slits 125 and 126 at least partly delimit the edges of the first panel 122 of the strip 121.
  • first, oblique stretches T1 of the first and second slits 125 and 126 might at least partly delimit the edges of the first panel 122 of the strip 121 when the position of the shared fold line 129 of the first and second panels 122 and 123 of the strip 121 varies.
  • the position of the shared fold line 129 depends on the size of the frame 20 because it determines the extension of the first and second panels 122 and 123 of the strip 121, with reference to the longitudinal axis L of the blank 100.
  • the variant of the blank 100 of Figure 17 differs from the blank 100 of Figure 4 in that, with reference to the second sector 116 of the second side panel 120, the first, oblique stretches T1 of the first and second slits 125 and 126 extend in divergent directions.
  • the first, oblique stretches T1 of the first and second slits 125 and 126 extend in convergent directions.
  • the first, oblique stretches T1 of the first and second slits 125 and 126 make an acute angle with the second fold line 112 and an obtuse angle with the third fold line 118.
  • each hook-shaped cut 24 is directed inwards, defining end portions 130 of the zones of the third sector 117 on the inner side of the cuts 24.
  • the variant of the blank 100 of Figure 17 comprises two strips 121a, 121b, each of which will form a respective supporting element 21 of the frame 20 of the packet 1.
  • Each strip 121a, 121b comprises a respective first and second panel 122a, 122b and 123a, 123b.
  • the first panels 122a, 122b of the strips 121a, 121b are connected to the main panel 115 by respective fold lines 127a, 127b.
  • the second panels 123a, 123b of the strips 121a, 121b are connected to the second side panel 120 by respective fold lines 128a, 128b, that is, the sixth fold lines 128a, 128b of the blank 100. More specifically, the sixth fold lines 128a, 128b of the blank 100 are part of the third fold line 118.
  • the first and second panels 122a, 122b and 123a, 123b of each strip 121a, 121b are connected to each other by a respective shared fold 129a, 129b.
  • the respective fold lines of the first and second panels 122a, 122b and 123a, 123b of the strips 121a, 121b are parallel to each other, in particular at right angles to the longitudinal axis of extension L.
  • one strip 121a is at least partly delimited by a portion of the outer edge of the blank 100 and by the first slit 125.
  • the other strip 121b is at least partly delimited by a portion of the outer edge of the blank 100 and by the second slit 126.
  • the first, oblique stretches T1 of the first and second slits 125, 126 define respective portions 124 of the first sector 114 of the second side panel 120 which form undercuts relative to the second, rectilinear stretches T2 of the first and second slits 125, 126.
  • the portions 124 are substantially triangular in shape.
  • the folding of the blank 100 to give it the shape of a collar 12 comprising the frame 20 is performed by a device 50 for folding blanks 100 of wrapping material, illustrated schematically in Figure 6 .
  • the device 50 comprises a conveyor 26 which, by way of example, may consist of a conveyor wheel rotatable stepwise or continuously about a vertical axis 26a in a direction indicated by the arrow F in Figure 6 .
  • the conveyor 26 supports a plurality of folding dies 27, in particular located at equal angular intervals from each other.
  • the blank 100 is fed in an initially flat configuration, preferably horizontal and preferably after having cut it off from a continuous web of wrapping material (not illustrated).
  • each blank 100 is carried out at a placing station 28 traversed in succession by the folding dies 27 carried by the conveyor 26.
  • Each drawing die 27 is provided with a respective through opening 30.
  • the shape of the through opening 30 of the drawing die 27 is such as to fold the blank 100 as it passes through the opening 30.
  • applicator means are provided upstream of the placing station 28 for applying the adhesive substance.
  • applicator means are provided upstream of the placing station 28 for applying the adhesive substance.
  • the adhesive applicator means not illustrated apply the adhesive connecting means to one or more portions of the third sector 117 of the second side panel 113 which are intended to come into contact with the first panel 114 of the strip 121.
  • the device 50 comprises a folding station 43, where at least part of the blank 100 is folded as it is moved through the opening 30 of the drawing die 27.
  • the folding station 43 corresponds to the placing station 28.
  • the folding station 43 is located downstream of the placing station 28, with reference to the direction indicated by the arrow F.
  • the device 50 comprises engagement means 31 for engaging a blank 100 and movable linearly through the opening 30 of the die 27, in particular with vertical motion from the bottom up and vice versa. More specifically, the engagement means 31 comprise a pusher 32 and a counterpusher 33 between which a respective blank 100 is interposed, as illustrated in Figures 7 and 8 .
  • the pusher 32 and the counterpusher 33 engage a respective face of the main panel 115 of the blank 100 between them.
  • the opening 30 of the die 27 is rectangular in shape and just larger in size than the main panel 115.
  • the passage of the blank 100 into the opening 30 of the die 27 causes folding of at least one of the first and second side panels 113 and 120 about the first and second fold lines 111 and 112, as illustrated in Figure 9 .
  • the pusher 32 and the counterpusher 33 perform a stroke C, in particular downwards, through the opening 30 of the die 27.
  • the stroke C is substantially equal to the extension of the panel 122 of the strip 121, with reference to the longitudinal axis of extension L of the blank 100, when the distance between the fifth fold line 127 and the shared fold line 129 is substantially equal to the distance between the second fold line 112 and the third fold line 118.
  • each die 27 comprises at least one respective shaping member 34 for shaping the strip 121 and configured to engage the strip 121 in such a way as to fold it to obtain the supporting element 21.
  • the shaping member 34 is connected to the die 27 in such a way as to extend into the through opening 30, defining the cross section of the opening 30 of the die 27 through which the blank 100 is made to pass.
  • the shaping member 34 is an element which obstructs the passage of the strip 121 through the opening 30 of the die 27.
  • the shaping member 34 comprises a sliding surface 35 for the blank 100 configured to at least partly contact the first panel 122 of the strip 121 and to rotate it relative to the main panel 115 of the blank 100 about the respective fold line 127, that is, the fifth fold line 127, thus folding the first panel 122.
  • the first panel 122 of the strip 121 is rotated through an angle of 90° about the respective fold line 127.
  • first panel 122 of the strip 121 about the respective fold line 127 causes rotation of the second panel 123 of the strip 121 relative to the first panel 122 about the respective fold line 129, that is, the shared fold line 129, and causes rotation of the second panel 123 of the strip 121 relative to the second sector 116 of the second side panel 120 along the respective fold line 128, that is, the sixth fold line 128, thus folding the second panel 123.
  • the second panel 123 of the strip 121 is rotated through an angle of 90° about the respective fold lines 128 and 129.
  • the rotation of the first and second panels 122 and 123 of the strip 121 about the respective fold lines 127, 128 and 129 occurs while the blank 100 travels the length of the stroke C in the opening 30 of the die 27.
  • first and second panels 122 and 123 of the strip 121 are disposed at right angles to each other, as illustrated in Figure 10 .
  • the shaping member 34 comprises a first and a second contact surface 38 and 39 intended to come into contact with the first and the second panel 122 and 123 of the strip 121; respectively.
  • the mutual position of the first and second contact surfaces 38 and 39 determines the shape of the supporting element 21 of the frame 20 formed by folding the first and second panels 122 and 123 of the strip 121.
  • first and second contact surfaces 38 and 39 are disposed at a 90° angle to each other.
  • the first and second panels 122 and 123 of the strip 121 are placed round the shaping member 34 in such a way as to abut the first and second contact surfaces 38 and 39, respectively.
  • the shaping member 34 is configured in such a way as to reproduce in negative form the shape of the supporting element 21.
  • the shaping member 34 allows simultaneously folding the second side panel 120 along the second fold line 112 and the first and second panels 122 and 123 of the strip 121 about the respective fold lines 127, 128 and 129 to obtain the supporting element 21.
  • each die 27 comprises a single shaping member 34.
  • the shaping member 34 has a first and a second slot 36 and 37 for insertion of respective portions of the blank 100 adjacent to the first and the second slit 125 and 126, in particular of the undercut portions 124 of the first sector 114 of the second side panel 120 ( Figures 5 and 10 ).
  • the first and the second insertion slots 36 and 37 define means for retaining the portions of the blank adjacent to the first and the second slit 125, 126, in particular the undercut portions 124 of the first sector 114 of the second side panel 120.
  • the shaping member 34 of the die 27 comprises a first and a second element 34a and 34b, each of which is designed to engage a respective strip 121a, 121b of the blank 100.
  • the first and second elements 34a and 34b each have a respective insertion slot 36 and 37 for insertion of the undercut portions 124 of the first sector 114 of the second side panel 120.
  • the first and second elements 34a and 34b of a respective die 27 are positioned to face each other on the same side of the die 27.
  • the first, oblique stretches T1 of the first and second slots 125 and 126 allow the portions of the blank 100 to be inserted into the first and second slots 36 and 37 of the shaping member 34. While the blank 100 travels the length of the stroke C in the opening 30 of the die 27, the portions of the blank 100 adjacent to the first and second slits 125 and 126 are inserted into the first and second insertion slots 36 and 37 until the second panel 123 of the strip 121 abuts the contact surface 39 of the shaping member 34.
  • the shaping member 34 abuts the portions of the blank 100 engaged in the first and second insertion slots 36 and 37, thereby preventing further rotation of the second side panel 120 about the second fold line 112.
  • the shaping member 34 keeps the second side panel 120 folded at an angle of 90° to the main panel 115 of the blank 100 along the second fold line 112.
  • the pusher 32 is lifted out of the opening 30 of the die 27 and the conveyor 26 is started and rotated one step in the direction indicated by the arrow F.
  • the fixed folder 40 has a helical profile - see Figure 11 .
  • the second sector 116 of the second side panel 120 is brought into contact with the second panel 123 of the strip 121, advantageously held in position by the shaping member 34.
  • a movable folding element 41 located downstream of the fixed folder 40 with reference to the direction of rotation indicated by the arrow F, engages the third sector 117 of the second side panel 120 to rotate by 90° about the respective fold line 119, that is, the fourth fold line 119, as illustrated in Figure 12 .
  • the third sector 117 of the second side panel 120 is brought into contact with the first panel 122 of the strip 121.
  • the movable folding element 41 comprises a first and a second pushing element 41a and 41b adapted to press respecting portions of the third sector 117 adjacent to the cuts 24 in such a way as to tuck respective end portions 130 in behind the first panel 122 of the strip 121.
  • the first and second pushing elements 41a and 41b position the end portions 130 on the side of the first panel 122 opposite the side of the first panel 122 which comes into contact with the third sector 117.
  • the movable folding element 41 comprises a single pushing element to make the mechanical tuck-in connection between the third sector 117 of the second side panel 120 and the first panel 122a, 122b of the strips 121a, 121b of the blank 100 of the collar 12 according to the variant of Figure 17 .
  • the blank 100 is fully folded into the shape shown in Figure 3 and can be removed, in a manner not illustrated, from the conveyor 26 and used to make up a packet of cigarettes.
  • This invention also relates to a method for folding a blank 100 of wrapping material used to make a frame 20 for a rigid packet 1 of cigarettes, as illustrated schematically in Figures 13 to 16 .
  • the method comprises a step of feeding the blank 100 in a flat, preferably horizontal configuration, as shown in Figure 13 .
  • the method comprises a step of drawing the blank 100 during which at least one between the first and the second side panel 113, 120 of the blank 100 is folded along the respective fold line 111, 112, that is, the first and the second fold line 111 and 112, relative to the main panel 115.
  • the first and the second side panel 113, 120 of the blank 100 are folded along the respective fold lines 111, 112, that is, the first and the second fold line 111 and 112, relative to the main panel 115.
  • the step of drawing the blank 100 is carried out simultaneously with a step of shaping the strip 121, during which the first and second panels 122 and 123 are folded along the respective fold lines 127, 128, 129 relative to the panel 115, as shown in Figure 14 .
  • the step of shaping the strip 121 comprises a step of rotating the first panel 122 of the strip 121, in particular through an angle of 90°, relative to the main panel 115 about the respective fold line 127, that is, the fifth fold line 127.
  • the step of shaping the strip 121 comprises a step of rotating the first panel 122 of the strip 121, in particular through an angle of 90°, relative to the second panel 123 of the strip 121 about the shared fold line 129.
  • the step of shaping the strip 121 comprises a step of rotating the second panel 123 of the strip 121, in particular through an angle of 90°, relative to the second sector 116 of the second side panel 120 about the respective fold line 128, that is, the sixth fold line 128. More specifically, the step of rotating the second panel 123 of the strip 121 about the respective fold line 128, that, the sixth fold line 128, is carried out in response to the step of rotating the first panel 122 of the strip 121 about the respective fold line 127, that is, the fifth fold line 127.
  • the step of shaping the strip 121 comprises a step of rotating the second side panel 120, in particular through an angle of 90° about the second fold line 112, in response to the step of rotating the first panel 122 of the strip 121 about the respective fold line 127, that is, the fifth fold line 127.
  • the shaping step comprises a step of engaging respective portions 124 of the second side panel 120 in order keep part of the second side panel 120, in particular the first sector 114 thereof, in the folded configuration along the second fold line 112 during the subsequent steps of folding the blank 100.
  • the method comprises a step of rotating the second sector 116 of the second side panel 120, in particular through an angle of 90°, relative to the first sector 114 of the second side panel 120 about the respective fold line 118, that is, the third fold line 118, in such a way as to bring the second sector 116 of the second side panel 120 and the second panel 123 of the strip 121 into contact with each other, as shown in Figure 15 .
  • the method comprises a step of rotating the third sector 117 of the second side panel 120, in particular through an angle of 90°, relative to the second sector 116 of the second side panel 120 about the respective fold line 119, that is, the fourth fold line 119, in such a way as to bring the third sector 117 of the second side panel 120 and the first panel 122 of the strip 121 into contact with each other to complete the frame 20, as shown in Figure 16 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Making Paper Articles (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)

Claims (12)

  1. Procédé de pliage d'un flan (100) de matériau d'emballage utilisé pour réaliser un cadre (20) pour un paquet rigide (1) pour des articles pour fumeurs ;
    le flan (100) comprenant un panneau principal (115) ainsi qu'un premier et un second panneaux latéraux (113, 120) qui sont parallèles et opposés l'un à l'autre et reliés au panneau principal (115) par une première et une seconde lignes de pliage (111, 112) respectivement ;
    le procédé comprenant une étape d'alimentation du flan (100) dans une configuration plate et une étape d'étirage du flan (100) durant laquelle le flan (100) passe par une ouverture (30) d'une filière d'étirage (27) respective pour plier au moins l'un entre le premier et le second panneaux latéraux (113, 120) le long de la ligne de pliage (111, 112) respective par rapport au panneau principal (115) ;
    le procédé prévoyant l'emploi d'un flan (100) présentant une première et une seconde incisions (125, 126) débouchantes se déployant le long de portions respectives du panneau principal (115) et du second panneau latéral (120), les incisions (125, 126) délimitant les bords d'au moins une bande (121 ; 121a, 121b) qui formera un élément de support (21) respectif du cadre (20) ;
    le procédé étant caractérisé en ce que l'étape d'étirage du flan (100) est réalisée par une pluralité de filières d'étirage (27) soutenues par un transporteur (26) simultanément à une étape de mise en forme de la bande (121 ; 121a, 121b) de sorte à former l'élément de support (21) respectif en utilisant au moins un organe de mise en forme (34) qui est relié à la filière d'étirage (27) respective et qui se prolonge à l'intérieur de l'ouverture (30) pour définir la section de passage par laquelle le flan (100) passe ; l'organe de mise en forme (34) comprenant une première et une seconde surfaces de contact (38, 39) destinées à entrer en contact avec, respectivement, le premier et le second panneaux (122, 123 ; 122a, 122b, 123a, 123b) de la bande (121 ; 121a, 121b) ; la position réciproque de la première et de la seconde surfaces de contact (38, 39) déterminant la forme de l'élément de support (21) du cadre (20).
  2. Procédé selon la revendication 1, caractérisé en ce que le premier et le second panneaux (122, 123 ; 122a, 122b, 123a, 123b) de la bande (121 ; 121a, 121b) du flan (100) sont reliés respectivement au panneau principal (115) et au second panneau latéral (120) par le biais de lignes de pliage (127, 128 ; 127a, 127b, 128a, 128b) respectives et en ce que l'étape de mise en forme de la bande (121 ; 121a, 121b) comprend une étape de rotation du premier panneau (122 ; 122a, 122b) de la bande (121 ; 121a, 121b) par rapport au panneau principal (115) et du second panneau (123 ; 123a, 123b) de la bande (121; 121a, 121b) par rapport au second panneau latéral (120) autour des lignes de pliage (127, 128 ; 127a, 127b, 128a, 128b) respectives, en particulier à un angle de 90°.
  3. Procédé selon la revendication 2, caractérisé en ce qu'il prévoit l'emploi d'un flan (100) où le premier et le second panneaux (122, 123 ; 122a, 122b, 123a, 123b) de la bande (121 ; 121a, 121b) sont reliés l'un à l'autre par une ligne de pliage commune (129, 129a, 129b) et en ce que l'étape de mise en forme de la bande (121 ; 121a, 121b) comprend une étape de rotation du premier panneau (122 ; 122a, 122b) de la bande (121 ; 121a, 121b) par rapport au second panneau (123, 123a, 123b) de la bande (121; 121a, 121b) autour de la ligne de pliage commune (129 ; 129a, 129b), en particulier à un angle de 90°.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'étape de mise en forme comprend une étape de mise en prise des portions (124) du second panneau latéral (120) de sorte à garder une partie du second panneau latéral (120) dans la configuration pliée durant les étapes suivantes de pliage du flan (100) pour réaliser le cadre (20) du paquet (1).
  5. Procédé selon la revendication 4, caractérisé en ce qu'il prévoit l'emploi d'un flan (100) où la première et la seconde incisions (125, 126) comprennent des premiers traits obliques (T1) respectifs et des seconds traits rectilignes (T2) par rapport à l'extension longitudinale du flan (100) ; les portions de mise en prise (124) du second panneau latéral (120) étant comprises entre les traits obliques (T1) respectifs et l'extension des seconds traits rectilignes (T2) respectifs ; durant l'étape de pliage du flan (100), les portions de mise en prise (124) du premier secteur (114) se déplaçant dans une position qui forme une contre-dépouille par rapport à l'extension rectiligne des seconds traits (T2) de la première et de la seconde incisions (125, 126).
  6. Procédé selon la revendication 5, caractérisé en ce qu'il prévoit l'emploi d'un flan (100) où les premiers traits obliques (T1) de la première et de la seconde incisions (125, 126) se développent entre deux lignes de pliage (112, 118) du flan, délimitant un premier secteur (114) du second panneau latéral (120).
  7. Procédé selon la revendication 5 ou 6, caractérisé en ce qu'il prévoit l'emploi d'un flan (100) où les premiers traits obliques (T1) de la première et de la seconde incisions (125, 126) se développent entre la seconde ligne de pliage (112) du second panneau latéral, en éloignement du panneau principal (115) dans une direction convergente ou divergente.
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il prévoit l'emploi d'un flan (100) où le second panneau latéral (120) comprend un premier, un second et un troisième secteurs (114, 116, 117) reliés l'un à l'autre en séquence par des lignes de pliage (118, 119) respectives ; et en ce qu'il comprend une étape de rotation du second secteur (116) par rapport au premier secteur (114) du second panneau latéral (120) autour de la ligne de pliage (118) respective, en particulier à un angle de 90°, pour amener le second secteur (116) du second panneau latéral (120) et le second panneau latéral (123, 123a, 123b) de la bande (121, 121a, 121b) en contact l'un avec l'autre.
  9. Procédé selon la revendication 8, caractérisé en ce qu'il comprend une étape de rotation du troisième secteur (117) du second panneau latéral (120) par rapport au second secteur (116) du second panneau latéral (120) autour de la ligne de pliage (119) respective, en particulier à un angle de 90°, pour amener le troisième secteur (117) du second panneau latéral (120) et le premier panneau latéral (122 ; 122a, 122b) de la bande (121 ; 121a, 121b) en contact l'un avec l'autre.
  10. Procédé selon la revendication 4 ou 5, caractérisé en ce que l'organe de mise en forme (34) présente une première et une seconde fentes (36, 37) d'insertion des portions respectives du flan (100) adjacentes à la première et à la seconde incisions (125, 126), en particulier des portions de mise en prise (124) du second panneau latéral (120), durant l'étape d'étirage ; la première et la seconde fentes d'insertion (36, 37) définissant des moyens de retenue des portions de mise en prise (124) du flan (100).
  11. Dispositif de pliage d'un flan (100) de matériau d'emballage utilisé pour réaliser un cadre (20) pour un paquet rigide (1) pour des articles pour fumeurs, le cadre (20) comprenant un panneau principal (115) ainsi qu'un premier et un second panneaux latéraux (113, 120) reliés au panneau principal (115) par une première et une seconde lignes de pliage (111, 112), respectivement ; le flan (100) présente une première et une seconde incisions (125, 126) débouchantes se déployant le long de portions respectives du panneau principal (115) et du second panneau latéral (120), les incisions (125, 126) délimitant les bords d'au moins une bande (121 ; 121a, 121b) qui formera un élément de support (21) respectif du cadre (20) ; le dispositif comprenant un poste de pliage (43) où au moins une partie du flan (100) est pliée pendant son passage à travers une ouverture (30) d'une filière d'étirage (27) comprenant au moins un organe de mise en forme (34) respectif pour mettre en forme la bande (121 ; 121a, 121b) et configuré pour mettre en prise la bande (121 ; 121a, 121b) de sorte à la plier pour obtenir l'élément de support (21) ; l'organe de mise en forme (34) étant un élément qui bloque le passage de la bande (121 ; 121a, 121b) à travers l'ouverture (30) de la filière d'étirage (27) ;
    caractérisé en ce que le dispositif comprend un transporteur (26) qui soutient une pluralité de filières d'étirage (27) .
  12. Dispositif selon la revendication 11, caractérisé en ce que l'organe de mise en forme (34) présente une première et une seconde fentes (36, 37) pour le passage de portions respectives du flan (100) adjacentes à la première et à la seconde incisions (125, 126) ; la première et la seconde fentes (36, 37) de passage définissant des moyens de retenue des portions du flan (100) adjacentes à la première et la seconde incisions (125, 126).
EP16202614.0A 2015-12-15 2016-12-07 Procédé et dispositif de pliage d'un flan de matériau d'emballage utilisé pour réaliser un cadre pour un paquet rigide pour des articles pour fumeurs Active EP3181344B1 (fr)

Priority Applications (1)

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PL16202614T PL3181344T3 (pl) 2015-12-15 2016-12-07 Sposób i urządzenie składające półfabrykat z materiału do owijania stosowanego do wykonania ramy dla sztywnego opakowania na artykuły dla palaczy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUB2015A009448A ITUB20159448A1 (it) 2015-12-15 2015-12-15 Metodo per il ripiegamento di uno sbozzato di materiale da incarto destinato ad originare un telaio per un pacchetto rigido di articoli da fumo.

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EP3181344A1 EP3181344A1 (fr) 2017-06-21
EP3181344B1 true EP3181344B1 (fr) 2019-09-04

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EP (1) EP3181344B1 (fr)
HU (1) HUE046385T2 (fr)
IT (1) ITUB20159448A1 (fr)
PL (1) PL3181344T3 (fr)

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Publication number Priority date Publication date Assignee Title
DE2440006C2 (de) * 1974-08-21 1984-06-28 Focke & Co, 2810 Verden Verfahren und Vorrichtung zum Herstellen von (quaderförmigen) Klappschachteln
NL2006233C2 (nl) * 2011-02-17 2012-08-20 Schut Systems B V Omvorminrichting en werkwijze voor omvormen.
PL3099583T3 (pl) * 2014-01-31 2019-08-30 G.D Societa' Per Azioni Sztywne opakowanie z uchylnym wieczkiem i zawierające grupę wyrobów do palenia o zmniejszonym wymiarze

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HUE046385T2 (hu) 2020-03-30
PL3181344T3 (pl) 2020-03-31
ITUB20159448A1 (it) 2017-06-15
EP3181344A1 (fr) 2017-06-21

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