EP2620376B1 - Packing method and unit for folding a blank from which to form a container in such a manner as to form a front box wall and two lateral box walls of a hinged lid of the container - Google Patents
Packing method and unit for folding a blank from which to form a container in such a manner as to form a front box wall and two lateral box walls of a hinged lid of the container Download PDFInfo
- Publication number
- EP2620376B1 EP2620376B1 EP13152954.7A EP13152954A EP2620376B1 EP 2620376 B1 EP2620376 B1 EP 2620376B1 EP 13152954 A EP13152954 A EP 13152954A EP 2620376 B1 EP2620376 B1 EP 2620376B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- panel
- wing
- lid
- container
- respect
- 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.)
- Not-in-force
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Classifications
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- 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
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- 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
- B65B19/228—Preparing and feeding blanks
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- 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
- B65B51/02—Applying adhesives or sealing liquids
- B65B51/023—Applying adhesives or sealing liquids using applicator nozzles
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- 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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/64—Lids
- B65D5/66—Hinged lids
- B65D5/6685—Hinged lids formed by extensions hinged to the upper edge of a container body formed by erecting a blank to U-shape
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- 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
Definitions
- the present invention relates to a packing method and unit for folding a blank from which to form a container in such a manner as to form a front box wall and two lateral box walls of a hinged lid of the container.
- Rigid packets for cigarettes with a hinged lid are currently the most widespread cigarette packets on the market, as they are simple to manufacture, practical and easy to use and offer good mechanical protection for the cigarettes contained inside them.
- a rigid cigarette packet with slide opening comprises an inner container, which is able to contain a set of cigarettes wrapped in a foil wrapper and is housed inside an outer container so that it can slide with respect to the outer container between a closed configuration, where the inner container is inserted inside the outer container, and an open configuration, where the inner container is extracted from the outer container.
- a rigid cigarette packet has also been proposed with slide opening and a hinged lid, where the inner container (or, alternatively, the outer container) is fitted with a hinged lid rotating between a closed position and an open position of an open upper end of the inner container.
- the lid has a connecting tab that has one end integral with the lid and the other end integral with the outer container (or, alternatively, the inner container) to "automatically" control the rotation of the lid (i.e. without the user having to touch the lid) by sliding the inner container with respect to the outer container.
- Patent application EP2325093A1 provides an example of a cigarette packet with a slide opening and hinged lid of the above-described type, i.e. where the lid is fitted with front and lateral "box" walls, so that closing the lid seals the open upper end of the inner container. It has been observed that the current known methods used for making cigarette packets with slide opening and a hinged lid fitted with box walls do not permit achieving high productivity levels (i.e. a large number of cigarette packets produced per unit time), especially if it is wished to maintain a high standard of quality. In consequence, known packing machines used to make cigarette packets with slide opening and a hinged lid are excessively slow and only suitable for producing small batches for special series.
- the object of the present invention is to provide a packing method and unit for folding a blank from which to form a container in such a manner as to form a front box wall and two lateral box walls of a hinged lid of the container, this packing method and unit being devoid of the above-described drawbacks and, in particular, simple and inexpensive to implement.
- a packing method and unit are provided for folding a blank from which to form a container in such a manner as to form a front box wall and two lateral box walls of a hinged lid of the container, in accordance with that claimed in the appended claims.
- reference numeral 4 indicates, as a whole, a container destined to contain a wrapped set of cigarettes (not shown).
- the container 4 forms an outer container of a rigid cigarette packet with slide opening by translation (linear movement); in consequence, the container 4 is able to house an inner container in a sliding manner to allow the inner container to slide with respect to the container 4, moving with a translational movement between a closed configuration, where the inner container is inserted completely inside the container 4, and an open configuration, where the inner container is extracted from the container 4 to enable access to a wrapped set of cigarettes housed in the inner container.
- the container 4 has an open top end 10 and is fitted with a lid 11, which is hinged to the container 4 on a hinge 12 to rotate, with respect to the container 4, between an open position (shown in Figure 1 ) and a closed position (not shown) of the open top end 10 of the container 4.
- the container 4 is parallelepipedal and has a bottom wall 13 opposite to the open top end 10, a front wall 14 and a rear wall 15 parallel and opposite to each other, and two lateral walls 16 parallel to each other and interposed between walls 14 and 15.
- the lid 11 has a top wall 17 that closes the open top end 10 of the container 4 when the lid is in the closed position, a front wall 18 and two lateral walls 19.
- the top wall 17 of the lid 11 is "flat” (i.e. constituted by a single cardboard panel or by multiple cardboard panels stacked one on top of the other and therefore solid inside), while walls 18 and 19 of the lid 11 are "boxed” (i.e. constituted by two cardboard panels set apart from each other and therefore hollow inside) and have a triangular cross-section.
- walls 18 and 19 of the lid 11 fit into the open top end 10 of the container 4 so that the top wall 17 of the lid 11 is flush with the top edges of walls 14, 15 and 16 of the container 4.
- a rear wall of the inner container can be connected to the top wall 17 of the lid 11 by a connecting tab 20 to control the rotation of the lid 11 "automatically" (i.e. without the user having to touch the lid 11) by sliding the inner container with respect to the container 4.
- the container 4 of the packet shown in Figure 1 is obtained from a corresponding blank 23, which is shown in Figure 2 and comprises, amongst other things, a plurality of elements that, where possible, are indicated by accented reference numerals equal to the reference numerals indicating the corresponding walls of the container 4.
- the blank 23 has two longitudinal fold lines 27 and a plurality of transverse fold lines 28, which define, between the two longitudinal fold lines 27, a panel 17' forming the top wall 17 of the lid 11, a panel 15' forming the rear wall 15 of the container 4, a panel 13' forming the bottom wall 13 of the container 4, and a panel 14' forming the front wall 14 of the container 4.
- Panel 18' is connected to panel 17' along a transverse fold line 28 and, in turn, panel 18" is connected to panel 18' along a transverse fold line 28; the two panels 18' and 18" form the front wall 18 of the lid 11 and, in particular, respectively form the outer portion and the inner portion of the front wall 18.
- the connecting tab 20 is connected to panel 18" along a transverse fold line 28 and, in turn, is formed by four panels 20', 20", 20'" and 20"" that are separated from each other by respective transverse fold lines 28; panel 20' of the connecting tab 20 is glued to an inner surface of the top wall 17 of the lid 11 (therefore, to an inner surface of panel 17'), while panel 20'" of the connecting tab 20 is glued to an outer surface of a rear wall of the inner container (after having been superimposed on and glued to panel 20"").
- Panel 14' has a pair of lateral flaps 16', which form an outer portion of the lateral walls 16, are located on opposite sides of panel 14' and are separated from panel 14' by the longitudinal fold lines 27.
- Panel 15' has a pair of lateral flaps 16", which are glued to the corresponding flaps 16', form an inner portion of the lateral walls 16, are located on opposite sides of panel 15' and are separated from panel 15' by the longitudinal fold lines 27.
- the lateral flaps 16" of panel 15' have a pair of tabs 29, each of which is separated from the respective lateral flap 16" by a transverse fold line 28.
- Panel 17' has a pair of two lateral appendices, which are located on opposite sides of panel 17', are separated from panel 17' by the longitudinal fold lines 27, are formed by respective flaps 19', 19" and 19'" that are separated from each other by further longitudinal fold lines, and form the lateral walls 19 of the lid 11.
- Each lateral appendix of panel 17' has two flaps 19' and 19" that respectively form the outer portion and the inner portion of a lateral wall 19 and a flap 19'" that is glued to an inner surface of the top wall 17 of the lid 11 with the interposition of panel 20' of the connecting tab 20 (i.e. panel 20' is directly connected to the inner surface of panel 17' and flaps 19'" are glued to panel 20').
- a packing unit 33 is provided, in which a packing conveyor 54 performs preliminary folding of the blank 23 to form the box walls 18 and 19 of the lid 11.
- the packing conveyor 54 is provided with a plurality of packing pockets 55, each of which is able to seat a blank 23 to convey the blank 23 along a packing path P3 that runs from an input station S6 to an output station S7.
- a hopper (not shown) is provided at the input station S6, this hopper housing a stack of blanks 23 and cyclically feeding the blanks 23 from a lower output opening to the packing pockets 55 of the packing conveyor 54; in particular, each blank 23 positioned at the lower output opening of the hopper is picked by a head of a vertically-moving suction gripper and is positioned on an underlying packing pocket 55 of the packing conveyor 54 that is stationary at the input station S6 and aligned with the lower output opening of the hopper.
- a gumming device 57 is connected to the packing conveyor 54 along the packing path P3 downstream of the input station S6 and applies glue 58 (shown in Figure 5 ) on panel 20'" of each blank 23.
- a folding device 59 is connected to the packing conveyor 54 downstream of the gumming device 57 along the packing path P3 and folds panel 20"" with respect to panel 20'" for superimposing and glue panels 20'" and 20"".
- a pressure device 60 is connected to the packing conveyor 54 downstream of the folding device 59 along the packing path P3 and keeps panels 20'" and 20"” pressed together to aid the gluing together of panels 20'" and 20"".
- a gumming device 61 is connected to the packing conveyor 54 along the packing path P3 downstream of the pressure device 60 and applies glue 62 (shown in Figure 5 ) on panel 17' of each blank 23.
- a folding device 63 is connected to the packing conveyor 54 downstream of the gumming device 61 along the packing path P3 and folds panels 20', 20", 20'" and 20"" (these last two being superimposed on and glued to each other) to lay panels 20'" and 20"" (superimposed on and glued to each other) on panel 15' and form the front wall 18 of the lid 11.
- the folding device 63 simultaneously folds panel 18' with respect to panel 17', panel 18" with respect to panel 18' and panel 20' with respect to panel 18" to bring panel 20' into contact with panel 17' (to which it adheres due to the glue 62) and, at the same time, forms the front box wall 18 of the lid 11, with panel 18' and panel 18" inclined with respect to each other.
- a pressure device 64 is connected to the packing conveyor 54 downstream of the folding device 63 along the packing path P3 and keeps panels 20' and 17' pressed together to aid the gluing together of panels 20' and 17'.
- the folding device 63 comprises a counter-body around which panels 18' and 18" are folded to form the front wall 18 of the lid 11, as described in detail in patent application BO2011A000426 , incorporated herein for reference.
- a gumming device 65 is connected to the packing conveyor 54 along the packing path P3 downstream of the pressure device 64 and applies glue 66 (shown in Figure 5 ) on panel 20' (which has previously been superimposed on and glued to panel 17') of each blank 23.
- a folding device 67 is connected to the packing conveyor 54 downstream of the gumming device 65 along the packing path P3 and simultaneously folds, on each lateral appendix of panel 17', flap 19' with respect to panel 17', flap 19" with respect to flap 19' and flap 19'” with respect to flap 19” to bring flap 191'" into contact with panel 20' and, at the same time, form the lateral box wall 19 of the lid 11, with flap 19' and flap 19" inclined with respect to each other.
- a pressure device 68 is connected to the packing conveyor 54 downstream of the folding device 67 along the packing path P3 and keeps flaps 19'" and panel 20' (which has been previously superimposed on and glued to panel 17') pressed together to aid the gluing of flaps 19'" to panel 20'.
- Folding device 67 is located at an end portion of a straight section of the packing path P3, while pressure device 68 is located along a curved section and is equipped with rotatably mounted grippers that follow each blank 23 along an arc of the curved section of the packing path P3.
- folding device 67 comprises two counter-bodies around which flaps 19' and 19" are folded to form the lateral walls 19 of the lid 11, as described in detail in patent application BO2011A000426 , incorporated herein for reference.
- the packing conveyor 54 is formed by a conveyor belt that is looped around two end pulleys and supports a plurality of packing pockets 55; in consequence, the packing path P3 has a U-shape and extends between the input station S6 located along an initial straight section of the packing path P3 and the output station S7 located along a final straight section of the packing path P3, which is connected to the initial straight section by an intermediate semi-circular section.
- the folding device 67 and the pressure device 68 are located on this intermediate semi-circular section.
- the packing method and the corresponding packing unit 33 described above have numerous advantages, as they enable manufacturing containers 4 with high productivity levels (i.e. a large number of containers 4 produced per unit time), while at the same time maintaining a high level of quality.
- This result is achieved thanks to the fact that the two lateral appendices of panel 17' (formed by flaps 19', 19" and 19'") are folded onto panel 20' that was previously superimposed on and glued to panel 17', instead of the other way around as followed in accordance with current known folding methods, described, for example, in patent application EP2325093A1 .
- flaps 19'" are glued directly to panel 17' and panel 20' is then superimposed on and glued to panel 17' on top of the flaps 19'".
- flaps 19' it becomes difficult to effectively press panel 20' against panel 17', due to the presence of the flaps 19'".
- an empty space remains between the two opposite folded flaps 19'" that separates panels 20'and 17' and therefore even when pressing on panel 20', it is difficult to make panel 20' remain in contact with panel 17' (not in direct face-to-face contact with each other) without a prolonged pressure force.
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Description
- The present invention relates to a packing method and unit for folding a blank from which to form a container in such a manner as to form a front box wall and two lateral box walls of a hinged lid of the container.
- In the description that follows, for brevity and without loss of generality for the present invention, reference will be made to a cigarette packet with slide opening and a hinged lid.
- Rigid packets for cigarettes with a hinged lid are currently the most widespread cigarette packets on the market, as they are simple to manufacture, practical and easy to use and offer good mechanical protection for the cigarettes contained inside them.
- In addition to the above-mentioned rigid cigarette packets with a hinged lid, rigid cigarette packets have been proposed with slide opening comprising two containers, one fitted in the other in a separable manner. In other words, a rigid cigarette packet with slide opening comprises an inner container, which is able to contain a set of cigarettes wrapped in a foil wrapper and is housed inside an outer container so that it can slide with respect to the outer container between a closed configuration, where the inner container is inserted inside the outer container, and an open configuration, where the inner container is extracted from the outer container.
- A rigid cigarette packet has also been proposed with slide opening and a hinged lid, where the inner container (or, alternatively, the outer container) is fitted with a hinged lid rotating between a closed position and an open position of an open upper end of the inner container. The lid has a connecting tab that has one end integral with the lid and the other end integral with the outer container (or, alternatively, the inner container) to "automatically" control the rotation of the lid (i.e. without the user having to touch the lid) by sliding the inner container with respect to the outer container.
- However, it has been observed that when turned upside down (as frequently happens inside a bag or a pocket of the user's clothes), a rigid cigarette packet with slide opening and a hinged lid tends to lose tobacco dust, which essentially falls out through the gap between the front edge of the top wall of the lid of the inner container and the facing upper edge of the front wall of the outer container. To prevent the undesired spilling of tobacco dust, it has been proposed to provide a lid that enables sealing the open upper end by being fitted with a front wall and two lateral walls, each formed by cardboard panels set apart from each other, i.e. by "box" walls, such that on closing, the lid seals the open upper end of the inner container.
- Patent application
EP2325093A1 provides an example of a cigarette packet with a slide opening and hinged lid of the above-described type, i.e. where the lid is fitted with front and lateral "box" walls, so that closing the lid seals the open upper end of the inner container. It has been observed that the current known methods used for making cigarette packets with slide opening and a hinged lid fitted with box walls do not permit achieving high productivity levels (i.e. a large number of cigarette packets produced per unit time), especially if it is wished to maintain a high standard of quality. In consequence, known packing machines used to make cigarette packets with slide opening and a hinged lid are excessively slow and only suitable for producing small batches for special series. - The object of the present invention is to provide a packing method and unit for folding a blank from which to form a container in such a manner as to form a front box wall and two lateral box walls of a hinged lid of the container, this packing method and unit being devoid of the above-described drawbacks and, in particular, simple and inexpensive to implement.
- According to the present invention, a packing method and unit are provided for folding a blank from which to form a container in such a manner as to form a front box wall and two lateral box walls of a hinged lid of the container, in accordance with that claimed in the appended claims.
- The present invention will now be described with reference to the attached drawings, which illustrate a non-limitative embodiment, where:
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Figure 1 is a front perspective view of a container made according to the packing method of the present invention; -
Figure 2 is a plan view of a blank used to make the container inFigure 1 ; -
Figure 3 is a schematic perspective view of a packing conveyor that performs preliminary folding of the blank inFigure 2 ; and -
Figures 4 and5 are a perspective view and a plan view, respectively, of the preliminary folding sequence of the blank inFigure 2 performed by the packing conveyor inFigure 3 . - In
Figure 1 ,reference numeral 4 indicates, as a whole, a container destined to contain a wrapped set of cigarettes (not shown). Preferably, thecontainer 4 forms an outer container of a rigid cigarette packet with slide opening by translation (linear movement); in consequence, thecontainer 4 is able to house an inner container in a sliding manner to allow the inner container to slide with respect to thecontainer 4, moving with a translational movement between a closed configuration, where the inner container is inserted completely inside thecontainer 4, and an open configuration, where the inner container is extracted from thecontainer 4 to enable access to a wrapped set of cigarettes housed in the inner container. - The
container 4 has anopen top end 10 and is fitted with alid 11, which is hinged to thecontainer 4 on ahinge 12 to rotate, with respect to thecontainer 4, between an open position (shown inFigure 1 ) and a closed position (not shown) of theopen top end 10 of thecontainer 4. Thecontainer 4 is parallelepipedal and has abottom wall 13 opposite to theopen top end 10, afront wall 14 and arear wall 15 parallel and opposite to each other, and twolateral walls 16 parallel to each other and interposed betweenwalls - The
lid 11 has atop wall 17 that closes the opentop end 10 of thecontainer 4 when the lid is in the closed position, afront wall 18 and twolateral walls 19. Thetop wall 17 of thelid 11 is "flat" (i.e. constituted by a single cardboard panel or by multiple cardboard panels stacked one on top of the other and therefore solid inside), whilewalls lid 11 are "boxed" (i.e. constituted by two cardboard panels set apart from each other and therefore hollow inside) and have a triangular cross-section. When thelid 11 is in the closed position,walls lid 11 fit into theopen top end 10 of thecontainer 4 so that thetop wall 17 of thelid 11 is flush with the top edges ofwalls container 4. - According to one embodiment, a rear wall of the inner container can be connected to the
top wall 17 of thelid 11 by a connectingtab 20 to control the rotation of thelid 11 "automatically" (i.e. without the user having to touch the lid 11) by sliding the inner container with respect to thecontainer 4. - The
container 4 of the packet shown inFigure 1 is obtained from acorresponding blank 23, which is shown inFigure 2 and comprises, amongst other things, a plurality of elements that, where possible, are indicated by accented reference numerals equal to the reference numerals indicating the corresponding walls of thecontainer 4. - With reference to
Figure 2 , the blank 23 has twolongitudinal fold lines 27 and a plurality oftransverse fold lines 28, which define, between the twolongitudinal fold lines 27, a panel 17' forming thetop wall 17 of thelid 11, a panel 15' forming therear wall 15 of thecontainer 4, a panel 13' forming thebottom wall 13 of thecontainer 4, and a panel 14' forming thefront wall 14 of thecontainer 4. - Panel 18' is connected to panel 17' along a
transverse fold line 28 and, in turn,panel 18" is connected to panel 18' along atransverse fold line 28; the twopanels 18' and 18" form thefront wall 18 of thelid 11 and, in particular, respectively form the outer portion and the inner portion of thefront wall 18. The connectingtab 20 is connected topanel 18" along atransverse fold line 28 and, in turn, is formed by fourpanels 20', 20", 20'" and 20"" that are separated from each other by respectivetransverse fold lines 28; panel 20' of the connectingtab 20 is glued to an inner surface of thetop wall 17 of the lid 11 (therefore, to an inner surface of panel 17'), while panel 20'" of the connectingtab 20 is glued to an outer surface of a rear wall of the inner container (after having been superimposed on and glued topanel 20""). Panel 14' has a pair of lateral flaps 16', which form an outer portion of thelateral walls 16, are located on opposite sides of panel 14' and are separated from panel 14' by thelongitudinal fold lines 27. Panel 15' has a pair oflateral flaps 16", which are glued to the corresponding flaps 16', form an inner portion of thelateral walls 16, are located on opposite sides of panel 15' and are separated from panel 15' by thelongitudinal fold lines 27. Thelateral flaps 16" of panel 15' have a pair oftabs 29, each of which is separated from the respectivelateral flap 16" by atransverse fold line 28. - Panel 17' has a pair of two lateral appendices, which are located on opposite sides of panel 17', are separated from panel 17' by the
longitudinal fold lines 27, are formed byrespective flaps 19', 19" and 19'" that are separated from each other by further longitudinal fold lines, and form thelateral walls 19 of thelid 11. Each lateral appendix of panel 17' has twoflaps 19' and 19" that respectively form the outer portion and the inner portion of alateral wall 19 and a flap 19'" that is glued to an inner surface of thetop wall 17 of thelid 11 with the interposition of panel 20' of the connecting tab 20 (i.e. panel 20' is directly connected to the inner surface of panel 17' and flaps 19'" are glued to panel 20'). - In accordance with that shown
Figure 3 , apacking unit 33 is provided, in which apacking conveyor 54 performs preliminary folding of the blank 23 to form thebox walls lid 11. - The
packing conveyor 54 is provided with a plurality ofpacking pockets 55, each of which is able to seat a blank 23 to convey the blank 23 along a packing path P3 that runs from an input station S6 to an output station S7. A hopper (not shown) is provided at the input station S6, this hopper housing a stack ofblanks 23 and cyclically feeding theblanks 23 from a lower output opening to thepacking pockets 55 of thepacking conveyor 54; in particular, each blank 23 positioned at the lower output opening of the hopper is picked by a head of a vertically-moving suction gripper and is positioned on anunderlying packing pocket 55 of thepacking conveyor 54 that is stationary at the input station S6 and aligned with the lower output opening of the hopper. - A
gumming device 57 is connected to thepacking conveyor 54 along the packing path P3 downstream of the input station S6 and applies glue 58 (shown inFigure 5 ) on panel 20'" of each blank 23. Afolding device 59 is connected to thepacking conveyor 54 downstream of thegumming device 57 along the packing path P3 andfolds panel 20"" with respect to panel 20'" for superimposing and glue panels 20'" and 20"". Apressure device 60 is connected to thepacking conveyor 54 downstream of thefolding device 59 along the packing path P3 and keeps panels 20'" and 20"" pressed together to aid the gluing together of panels 20'" and 20"". - A
gumming device 61 is connected to thepacking conveyor 54 along the packing path P3 downstream of thepressure device 60 and applies glue 62 (shown inFigure 5 ) on panel 17' of each blank 23. A folding device 63 is connected to thepacking conveyor 54 downstream of thegumming device 61 along the packing path P3 andfolds panels 20', 20", 20'" and 20"" (these last two being superimposed on and glued to each other) to lay panels 20'" and 20"" (superimposed on and glued to each other) on panel 15' and form thefront wall 18 of thelid 11. In particular, the folding device 63 simultaneously folds panel 18' with respect to panel 17',panel 18" with respect to panel 18' and panel 20' with respect topanel 18" to bring panel 20' into contact with panel 17' (to which it adheres due to the glue 62) and, at the same time, forms thefront box wall 18 of thelid 11, with panel 18' andpanel 18" inclined with respect to each other. Apressure device 64 is connected to thepacking conveyor 54 downstream of the folding device 63 along the packing path P3 and keeps panels 20' and 17' pressed together to aid the gluing together of panels 20' and 17'. According to a preferred embodiment, the folding device 63 comprises a counter-body around whichpanels 18' and 18" are folded to form thefront wall 18 of thelid 11, as described in detail in patent applicationBO2011A000426 - A
gumming device 65 is connected to thepacking conveyor 54 along the packing path P3 downstream of thepressure device 64 and applies glue 66 (shown inFigure 5 ) on panel 20' (which has previously been superimposed on and glued to panel 17') of each blank 23. Afolding device 67 is connected to thepacking conveyor 54 downstream of thegumming device 65 along the packing path P3 and simultaneously folds, on each lateral appendix of panel 17', flap 19' with respect to panel 17', flap 19" with respect to flap 19' and flap 19'" with respect toflap 19" to bring flap 191'" into contact with panel 20' and, at the same time, form thelateral box wall 19 of thelid 11, with flap 19' and flap 19" inclined with respect to each other. Apressure device 68 is connected to thepacking conveyor 54 downstream of thefolding device 67 along the packing path P3 and keeps flaps 19'" and panel 20' (which has been previously superimposed on and glued to panel 17') pressed together to aid the gluing of flaps 19'" to panel 20'.Folding device 67 is located at an end portion of a straight section of the packing path P3, whilepressure device 68 is located along a curved section and is equipped with rotatably mounted grippers that follow each blank 23 along an arc of the curved section of the packing path P3. According to a preferred embodiment,folding device 67 comprises two counter-bodies around whichflaps 19' and 19" are folded to form thelateral walls 19 of thelid 11, as described in detail in patent applicationBO2011A000426 - According to a preferred embodiment shown in
Figure 3 , thepacking conveyor 54 is formed by a conveyor belt that is looped around two end pulleys and supports a plurality ofpacking pockets 55; in consequence, the packing path P3 has a U-shape and extends between the input station S6 located along an initial straight section of the packing path P3 and the output station S7 located along a final straight section of the packing path P3, which is connected to the initial straight section by an intermediate semi-circular section. Thefolding device 67 and thepressure device 68 are located on this intermediate semi-circular section. - The packing method and the
corresponding packing unit 33 described above have numerous advantages, as they enablemanufacturing containers 4 with high productivity levels (i.e. a large number ofcontainers 4 produced per unit time), while at the same time maintaining a high level of quality. This result is achieved thanks to the fact that the two lateral appendices of panel 17' (formed byflaps 19', 19" and 19'") are folded onto panel 20' that was previously superimposed on and glued to panel 17', instead of the other way around as followed in accordance with current known folding methods, described, for example, in patent applicationEP2325093A1 . - In other words, in accordance with current known folding methods, described, for example, in patent application
EP2325093A1 , flaps 19'" are glued directly to panel 17' and panel 20' is then superimposed on and glued to panel 17' on top of the flaps 19'". However, in this way it becomes difficult to effectively press panel 20' against panel 17', due to the presence of the flaps 19'". In fact, an empty space remains between the two opposite folded flaps 19'" that separates panels 20'and 17' and therefore even when pressing on panel 20', it is difficult to make panel 20' remain in contact with panel 17' (not in direct face-to-face contact with each other) without a prolonged pressure force. Therefore, when panel 20' is superimposed on and glued to panel 17' on top of the flaps 19'", it is necessary to prolong the pressure action on panel 20', as more time is needed to achieve satisfactory gluing of panel 20' to the underlying panel 17' due to the interposition of the flaps 19'"; obviously, this entails a significant drop in productivity of the packing process. The present invention is, as described above, devoid of these drawbacks.
Claims (8)
- A packing method for folding a blank (23) from which to form a container (4) in such a manner as to form a front box wall (18) and two lateral box walls (19) of a hinged lid (11) of the container (4);
the blank (23) has two longitudinal fold lines (27) and a plurality of transverse fold lines (28) that define, between the two longitudinal fold lines (27), a first panel (14') forming a front wall (14) of the container (4), a second panel (13') forming a bottom wall (13) of the container (4), a third panel (15') forming a rear wall (15) of the container (4), a fourth panel (17') forming a top wall (17) of the lid (11), a fifth panel (18') forming an outer portion of the front box wall (18) of the lid (11), a sixth panel (18") forming an inner portion of the front box wall (18) of the lid (11) and a seventh panel (20');
the fourth panel (17') has two lateral appendices, which are located on opposite sides of the fourth panel (17'), are separated from the fourth panel (17') by the longitudinal fold lines (27), and each comprise a first wing (19') forming an outer portion of a respective lateral box wall (19) of the lid (11), a second wing (19") forming an inner portion of the lateral box wall (19) of the lid (11) and a third wing (19'"); and the packing method comprises the steps of:applying a first glue (62), by means of a first gumming device (61), destined to be located between the fourth panel (17') and the seventh panel (20'),simultaneously folding, by means of a first folding device (63), the fifth panel (18') with respect to the fourth panel (17'), the sixth panel (18") with respect to the fifth panel (18'), and the seventh panel (20') with respect to the sixth panel (18"), for bring the seventh panel (20') into contact with the fourth panel (17') and to form the front box wall (18) of the lid (11), with the fifth panel (18') and the sixth panel (18") inclined with respect to each other;applying a second glue (66), by means of a second gumming device (65), destined to be located between each third wing (19'") and the seventh panel (20'), which is superimposed on and glued to the fourth panel (17'); andsimultaneously folding on each lateral appendix of the fourth panel (17'), by means of a second folding device (67), the first wing (19') with respect to the fourth panel (17'), the second wing (19") with respect to the first wing (19'), and the third wing (19'") with respect to the second wing (19"), to bring the third wing (19'") into contact with the seventh panel (20') and to form a respective lateral box wall (19) of the lid (11), with the first wing (19') and second wing (19") inclined with respect to each other. - A packing method according to Claim 1, wherein the blank (23) comprises an eighth panel (20") connected to the seventh panel (20') along a transverse fold line (28), a ninth panel (20'") connected to the eighth panel (20") along a transverse fold line (28), and a tenth panel (20"") connected to the ninth panel (20'") along a transverse fold line (28); the packing method comprising the further steps:applying a third glue (58), by means of a third gumming device (57), between the ninth panel (20'") and the tenth panel (20""); andfolding, by means of a third folding device (59), the ninth panel (20'") with respect to the tenth panel (20"") for superimposing the ninth panel (20'") onto the tenth panel (20""), before folding the fifth panel (18') with respect to the fourth panel (17'), so that the tenth panel (20"") superimposed with the ninth panel (20'") rests on the third panel (15') when the fifth panel (18') is folded with respect to the fourth panel (17').
- A packing method according to Claim 2, wherein the seventh, eighth, ninth and tenth panels (20', 20", 20'", 20"") form a connecting tab (20) connecting the top wall (17) of the lid (11) to a rear wall of a further container, which is placed on the third panel (15') of the blank (23).
- A packing method according to one of Claims 1 to 3, and comprising the further step of keeping the fourth panel (17') and the seventh panel (20') pressed together by means of a first pressure device (64) located downstream from the first folding device (63).
- A packing method according to one of Claims 1 to 4 and comprising the further step of keeping each third wing (19'") and the seventh panel (20') pressed together by means of a second pressure device (68) located downstream from the second folding device (67).
- A packing method according to one of Claims 1 to 5, wherein the first folding device (63) comprises a counter body, around which the fifth panel (18') and sixth panel (18") are folded to form the front box wall (18) of the lid (11).
- A packing method according to one of Claims 1 to 6, wherein the second folding device (67) comprises two counter bodies, around each of which the first wing (19') and second wing (19') are folded to form the corresponding lateral box wall (19) of the lid (11).
- A packing unit (33) for folding a blank (23) from which to form a container (4) in such a manner as to form a front box wall (18) and two lateral box walls (19) of a hinged lid (11) of the container (4);
the blank (23) has two longitudinal fold lines (27) and a plurality of transverse fold lines (28) that define, between the two longitudinal fold lines (27), a first panel (14') forming a front wall (14) of the container (4), a second panel (13') forming a bottom wall (13) of the container (4), a third panel (15') forming a rear wall (15) of the container (4), a fourth panel (17') forming a top wall (17) of the lid (11), a fifth panel (18') forming an outer portion of the front box wall (18) of the lid (11), a sixth panel (18") forming an inner portion of the front box wall (18) of the lid (11) and a seventh panel (20');
the fourth panel (17') has two lateral appendices, which are located on opposite sides of the fourth panel (17'), are separated from the fourth panel (17') by the longitudinal fold lines (27), and each comprise a first wing (19') forming an outer portion of a respective lateral box wall (19) of the lid (11), a second wing (19") forming an inner portion of the lateral box wall (19) of the lid (11) and a third wing (19'"); the packing unit (33) comprising:a first gumming device (61) for applying a first glue (62) destined to be located between the fourth panel (17') and the seventh panel (20'); a first folding device (63) for simultaneously folding the fifth panel (18') with respect to the fourth panel (17'), the sixth panel (18") with respect to the fifth panel (18'), and the seventh panel (20') with respect to the sixth panel (18"), for bring the seventh panel (20') into contact with the fourth panel (17') and to form the front box wall (18) of the lid (11), with the fifth panel (18') and the sixth panel (18") inclined with respect to each other;a second gumming device (65) for applying a second glue (66) between each third wing (19'") and the seventh panel (20'), which is superimposed on and glued to the fourth panel (17'); anda second folding device (67) for simultaneously folding on each lateral appendix of the fourth panel (17'), the first wing (19') with respect to the fourth panel (17'), the second wing (19") with respect to the first wing (19'), and the third wing (19'") with respect to the second wing (19"), for bring the third wing (19'") into contact with the seventh panel (20') and to form a respective lateral box wall (19) of the lid (11), with the first wing (19') and second wing (19") inclined with respect to each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL13152954T PL2620376T3 (en) | 2012-01-26 | 2013-01-28 | Packing method and unit for folding a blank from which to form a container in such a manner as to form a front box wall and two lateral box walls of a hinged lid of the container |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000035A ITBO20120035A1 (en) | 2012-01-26 | 2012-01-26 | METHOD AND UNIT OF WRAPPING FOR FOLDING AN EMBEDDED INTENDED FOR FORMING A CONTAINER SO AS TO REALIZE A BOXED FRONT WALL AND TWO CURED SIDE WALLS OF A HINGED CONTAINER LID. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2620376A1 EP2620376A1 (en) | 2013-07-31 |
EP2620376B1 true EP2620376B1 (en) | 2014-09-24 |
Family
ID=45992628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13152954.7A Not-in-force EP2620376B1 (en) | 2012-01-26 | 2013-01-28 | Packing method and unit for folding a blank from which to form a container in such a manner as to form a front box wall and two lateral box walls of a hinged lid of the container |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2620376B1 (en) |
IT (1) | ITBO20120035A1 (en) |
PL (1) | PL2620376T3 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUB20154593A1 (en) * | 2015-10-13 | 2017-04-13 | Gd Spa | Method and wrapping unit for folding a blank intended to form a container so as to form a box-shaped front wall and two box-shaped side walls of a hinged lid of the container. |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1320984B1 (en) * | 2000-04-10 | 2003-12-18 | Gd Spa | METHOD AND MACHINE FOR MAKING CIGARETTE PACKAGES WITH HINGED COVERS. |
EP1847478A1 (en) * | 2006-04-20 | 2007-10-24 | Philip Morris Products S.A. | Hinged Lid Container with Sliding Device |
ITBO20080092A1 (en) * | 2008-02-13 | 2009-08-14 | Gd Spa | CIGARETTE PACKAGING MACHINE FOR THE CONSTRUCTION OF A RIGID PACKAGE WITH HINGED LID. |
PL2325093T3 (en) * | 2009-11-20 | 2012-11-30 | Imperial Tobacco Ltd | Package for tobacco-related articles |
-
2012
- 2012-01-26 IT IT000035A patent/ITBO20120035A1/en unknown
-
2013
- 2013-01-28 PL PL13152954T patent/PL2620376T3/en unknown
- 2013-01-28 EP EP13152954.7A patent/EP2620376B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2620376A1 (en) | 2013-07-31 |
ITBO20120035A1 (en) | 2013-07-27 |
PL2620376T3 (en) | 2015-02-27 |
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