Patent Application
20250128841
This patent application claims priority from Italian patent application no. 102023000022230 filed on Oct. 24, 2023, the entire disclosure of which is incorporated herein by reference.
The present invention relates to a grouping unit for a cartoning machine for the production of a package comprising a plurality of packs for smoking articles and an insert, to a cartoning machine provided with said grouping unit, to a method for the production of a package comprising a plurality of packs for smoking articles and an insert and to a package comprising a plurality of packs for smoking articles and an insert.
Packages comprising, on the inside, a group of packs for smoking articles are widely known, such as for example packs of traditional cigarettes or cigars, packs of electronic cigarettes of the liquid vaporization type, packs of new generation cigarettes tobacco without combustion, etc. Typically, the packs have a parallelepiped shape and are arranged next to one another and along a number of rows, for example two rows of five packs each next to one another.
In some cases, the package also comprises, on the inside, a support element designed to support the group of packs and made so as to allow the packs to be arranged in a raised position inside the package. The package then comprises an external overwrap that wraps the group of packs and is obtained from a paper/cardboard flat blank folded around the group of packs and comprising a number of panels connected to one another along folding lines; a plurality of said panels is adapted to define the support element which is then obtained by folding said blank during the forming of the external overwrap. In other words, the support element and the overwrap are obtained by folding the same blank.
Document EP622312B1, for example, describes a package of the type described above wherein the support element and the overwrap are obtained from a single blank.
However, folding the blank and wrapping the same around the group of packs are complex and are usually carried out using special folding and wrapping units with a high degree of complexity and a considerable number of components.
EP523612A1 instead describes a grouping unit for a cartoning machine for the production of a package comprising a plurality of packs for smoking articles but without an insert to support the group of packs.
The object of the present invention is to provide a grouping unit for a cartoning machine for the production of a package comprising a plurality of packs for smoking articles and an insert that is free from the drawbacks of the state of the art and is, in particular, easy, and inexpensive to produce.
A further object of the present invention is to provide a cartoning machine provided with a grouping unit that is free from the drawbacks of the state of the art and is, in particular, easy, and inexpensive to produce.
The object of the present invention is to provide a method for the production of a package comprising a plurality of packs for smoking articles and an insert that is free from the drawbacks of the state of the art and is, in particular, easy, and inexpensive to implement.
A further object of the present invention is to provide a package comprising a plurality of packs for smoking articles and an insert that is free from the drawbacks of the state of the art, which can be obtained by modifying existing cartoning machines and that is, in particular, easy, and inexpensive to produce.
According to the present invention, a grouping unit for a cartoning machine for the production of a package comprising a plurality of packs for smoking articles and an insert, a cartoning machine provided with said a grouping unit, a method for the production of a package comprising a plurality of packs for smoking articles and an insert and a package comprising a plurality of packs for smoking articles and an insert as established by the attached claim are provided.
The present invention will now be described with reference to the attached drawings, which illustrate a non-limiting embodiment thereof, wherein:
In
The grouping unit 2 comprises a hopper 3 made to house the already formed inserts I. The hopper 3 has a vertical development and comprises an output opening 4 from which the inserts I are extracted in succession by means a of corresponding extraction device 5. The hopper 3 is designed so as to contain a single stack of already formed inserts I stacked on top of one another; more specifically, the inserts I are stacked inside the hopper 3 with their respective lower and upper walls BW, SW in contact. Advantageously, the hopper 3 is filled with the already formed inserts I obtained by the insert manufacturing machine I starting from a flat paper/cardboard blank, either manually by an operator or automatically.
The extraction device 5 is coupled to the output opening 4 and is designed to cyclically extract a single insert I to be fed to a downstream insert feeding assembly 6. The extraction device 5 comprises a drum 7 rotating around an axis X and provided with a number of peripheral seats 8, each designed to pick up a single insert I from the output opening 4 and to feed the same to the insert feeding assembly 6.
The insert feeding assembly 6 comprises a dragging device 16 which is designed to receive the inserts I from the drum 7 and to feed them one after the other along a substantially rectilinear path along a conveying direction D1.
Advantageously, the dragging device 16 comprises a belt conveyor; preferably of the block type. Alternatively, the dragging device 16 comprises a pushing element.
The inserts I exiting the dragging device 16 are fed to a feeding device 9. The feeding device 9 is arranged downstream of the dragging device 16 from which it receives the inserts I and is also designed to feed the inserts I in succession through a substantially rectilinear path along the conveying direction D1 and up to a grouping assembly 10. Advantageously, the feeding device 9 comprises a pair of belt conveyors 11 that come into contact with the lower and upper walls BW, SW to feed them along the conveying direction D1. In more detail, the belt conveyors 11 are configured to push the last insert I of the succession (that is, the furthest downstream insert I) into the grouping assembly 10 and to retract the second to last insert I of the succession (that is, the one that pushed the last insert I into the grouping assembly 10) so that it does not interfere with the grouping assembly 10.
The grouping unit 2 then comprises a pack feeding assembly 12, which is configured to feed the packs P grouped along a number (in particular two) of rows of five packs P arranged next to one another. The packs P are fed in succession along a conveying direction D2. Advantageously, the conveying direction D2 is substantially parallel to the conveying direction D1; preferably, the conveying directions D1, D2 have opposite directions. The pack feeding assembly 12 receives the packs P coming from the packaging machine through a conveyor (of a known type and not illustrated) and feeds them to the grouping assembly 10.
The grouping unit 2 also comprises a blank feeding assembly 13 configured to feed the flat paper/cardboard blanks B: in succession along a conveying direction D3. Advantageously, the conveying direction D3 is orthogonal to the conveying directions D1, D2. The pack feeding assembly 12 receives the blanks B coming from a collecting storage unit by means of a conveyor (of a known type and not illustrated) and feeds them to the grouping assembly 10. Preferably, the blanks B are fed to the grouping assembly 10 from above.
The grouping assembly 10 is then configured to receive the packs 10 from the pack feeding assembly 12, the blank B from the blank feeding assembly 13 and the insert I from the insert feeding assembly 6. In more detail, the insert I is fed so as to be arranged between the group of packs P and the flat blank B. In particular, the upper wall SW faces the group of packs P while the lower wall BW faces a panel B* of the flat blank B which defines a lower wall of the package C. In greater detail, the upper wall SW faces some base walls of the packs P. The insert I is arranged at a given distance (different from zero) from both the group of packs P and the blank B; in other words, the insert I is not arranged in contact with either the group of packs P or the blank B.
Finally, the grouping unit 2 comprises a pushing element 14 which is movable along a convey direction D4. Advantageously, the convey direction D4 is orthogonal to the convey directions D1, D2, D3. The pushing element 14 comprises an arm to which an appendix is connected for the contact with the packs P. Preferably, said appendix has a flat front surface which, in use, is arranged in contact with the upper walls of the packs P and has a size substantially uniform with the upper size of the group P of packs. The pushing element 14 is movable between a retracted position and a forward position, and vice versa. In the path to pass from the retracted position to the forward position, the pushing element 14 is arranged in contact with the upper walls of the packs P and conveys them until it intercepts the insert I which is then arranged with the upper wall SW in contact with the group of packs P in the area of the grouping assembly 10; continuing its run towards the forward position, the pushing element 14 conveys the assembly formed by the group of packs P and the insert I until it intercepts the blank B so that the lower wall BW is in contact with the panel B* in the area of a wrapping assembly 15. In the forward position, the pushing element 14 is arranged in the area of the wrapping assembly 15.
The wrapping assembly 15 comprises folding members (of a known type and not illustrated) which are configured to at least partially fold the blank B and wrap the same around the assembly formed by the group of packs P and the insert I so as to obtain a semi-finished package C.
The implemented method for the production of the package C described in the preceding disclosure is described in the following.
First of all, the method provides for a preliminary production step of the packs P, preferably provided with an overwrap obtained from a transparent plastic material, and a preliminary production step of the inserts I starting from a flat paper/cardboard blank.
The method then provides for feeding the inserts I in an alternating manner manually by an operator or automatically into the hopper 3 in order to obtain a single stack of already formed inserts I one on top of the other. The single inserts I are then extracted from the output opening 4 by the extraction device 5 and rotated substantially by 90° around the axis X.
The single inserts I extracted from the output opening 4 are laid on the dragging device 16 which feeds them one after the other through a substantially rectilinear path along the conveying direction D1. The inserts I are then transferred by the dragging device 16 to the two belt conveyors 11 that define the feeding device 9 and that feed the inserts I always through a substantially rectilinear path along the conveying direction D1 up to the area of the grouping assembly 10. In more detail, the belt conveyors 11 are configured to push the last insert I of the succession (that is, the furthest downstream insert I) into the grouping assembly 10 and to retract the second to last insert I of the succession (that is, the one that pushed the last insert I into the grouping assembly 10) so that it does not interfere with the grouping assembly 10.
Furthermore, the groups of packs P are fed in succession along the conveying direction D2, preferably parallel to the conveying direction D1, grouped along a number of rows of packs next to one another until they reach the grouping assembly 10.
Finally, the flat paper/cardboard blanks B are also fed along the conveying direction D3, preferably orthogonal to the first and second conveying directions, until they reach the grouping assembly 10.
At the grouping assembly 10, each insert I is arranged between the group of packs P and the flat blank B with the upper wall SW facing the group of packs P and the lower wall BW facing the panel B*. The pushing element 14 is then activated and moves from the retracted position to the forward position along the conveying direction D4 so as to push the group of packs P until it intercepts the insert I which is arranged with the upper wall SW in contact with the group of packs P; and, subsequently, until it intercepts the flat blank B with the panel B* that is in contact with the rear wall BW. Finally, the assembly formed by the group of packs P, the insert I and the blank B is fed to the wrapping assembly 15 so that the blank B is folded to at least partially wrap the group of packs P and the insert I so as to obtain the semi-finished package C.
Once the forward position is reached, the pushing element 14 is operated again to move from the forward position to the rear position.
According to further embodiments not illustrated, each group of packs P is formed by a number of packs P other than ten (for example five packs P, or twelve packs P) arranged next to one another in any number of rows.
The embodiment described in the preceding disclosure refers to the forming of packages comprising packs to house any smoking article (for example a pack of traditional cigarettes or cigars, a pack of electronic cigarettes of the liquid vaporization type, a pack of new generation cigarettes without tobacco combustion, etc.).
The grouping unit 2 described up to now is very easy to make, but is at the same time flexible and compact as it is formed by a small number of components. Furthermore, the applicant has verified that by using an insert I separate from the blank B it is possible to modify existing cartoning machines 1, thus containing the overall costs.
| Number | Date | Country | Kind |
|---|---|---|---|
| 102023000022230 | Oct 2023 | IT | national |
