WO2007135539A1 - Machine and method for packaging and package so obtained - Google Patents

Machine and method for packaging and package so obtained Download PDF

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Publication number
WO2007135539A1
WO2007135539A1 PCT/IB2007/001309 IB2007001309W WO2007135539A1 WO 2007135539 A1 WO2007135539 A1 WO 2007135539A1 IB 2007001309 W IB2007001309 W IB 2007001309W WO 2007135539 A1 WO2007135539 A1 WO 2007135539A1
Authority
WO
WIPO (PCT)
Prior art keywords
forming means
machine according
transversal
welding
fit
Prior art date
Application number
PCT/IB2007/001309
Other languages
French (fr)
Inventor
Sergio Contri
Livio Paganini
Roberto Sartini
Roberto Zoccarato
Original Assignee
Sasib S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sasib S.P.A. filed Critical Sasib S.P.A.
Publication of WO2007135539A1 publication Critical patent/WO2007135539A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
    • B65B19/02—Packaging cigarettes
    • B65B19/22—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers
    • B65B19/24—Wrapping the cigarettes; Packaging the cigarettes in containers formed by folding wrapping material around formers using hollow mandrels through which groups of cigarettes are fed
    • 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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/08—Forming three-dimensional containers from sheet material
    • B65B43/10—Forming three-dimensional containers from sheet material by folding the material

Definitions

  • the present invention relates to the packaging field and refers to machine and method for making a package. Moreover the invention also relates to the package so obtained.
  • Such machine, method and package are particularly adapted for carrying out cigarette packages, sweet or snack package, handkerchiefs and grouped or single products.
  • Packaging machines are known for high speed packaging cigarette and similar products fit to produce cigarette packages made of several materials, such as paper coupled with aluminium, cardboard or coated board and external protection film.
  • a further disadvantage of such known machines and methods consists in that they supply packages permeable to the air or not sufficiently sealed.
  • a further disadvantage of such machines and methods consists in that they are not fit to realize predefined shapes without using heavy materials or without the packaging material being supported by the product to be packaged.
  • An object of the present invention is to propose a machine and a method for making a package and that they are fast and relatively simple.
  • Another object is to propose a package for one or more products fit to conserve such products and feasible also with a single sheet.
  • Another object is to propose a method, a machine and a packaging, obtained by them, fit to maintain a predefined shape even if the packaging of the packaging is formed without containing the product.
  • figure 1 shows an axonometric view of the packaging machine, object of the present invention
  • - figures from 2 to 4 show respective frontal, lateral and plant views of the machine of figure 1
  • figures 5 and 6 show schematically, from respective point of view, enlarged and axonometric views of a drum with elements fit to execute some packaging operations and in which some parts have been removed for better evidencing the others
  • figure 7 shows a diagrammatic view of a sequence of packaging steps realized in the drum of figure 5.
  • numeral 1 indicates the machine, object of the present invention, for packaging one or more products P with a thermoweldable sheet material M particularly fit to make packages of such material, containing cigarettes, cigarillos or similar products.
  • the machine 1 comprises twelve forming means 2, regularly spaced one from the other of 30°, fixed to a drum means 17 placed in rotation by suitable machine elements.
  • the longitudinal axes of the forming means 2 are parallels to the horizontal spin axis of the drum means 17.
  • Each forming means 2, said also arbor, is tubular shaped, having an external lateral surface 3, straight parallelepiped shaped, delimiting its longitudinal internal passing cavity 4.
  • the machine 1 further comprises feeding means 5 of the material M, fit to supply a sheet of such material to the front side, with respect to the motion of the drum means, of the forming means 2 in the highest position of the drum.
  • Such sheet position by means of the feeding means allows the wrapping means 6, placed immediately downstream of such forming means, to wrap such material M sheet around said forming means, which in the meantime, is advanced in consequence of the rotating motion of the drum means.
  • the wrapping means wrap the sheet with a first cross-sectional edge T protruding from such forming means 2 and so that its longitudinal edges L, LL are mutually overlapped on a longitudinal stop portion 8 of the external lateral surface 3 of the forming means 2.
  • the machine comprises also longitudinal welding means 7 fit to thermoweld the overlapping longitudinal edges L, LL matching the longitudinal stop portion 8 of the external lateral surface 3 of the forming means 2.
  • the machine 1 is provided with matching means 9 activated by suitable elements in translation along the longitudinal axis of the forming means downstream of the wrapping means, between an end condition external to the forming means 2, where it is removed therefrom, and an end condition internal to the cavity 4 of the forming means 2.
  • a matching surface 10 of the matching means 9 is aligned to the forming means edge 2 from which the first cross-sectional edge T of the sheet material M protrudes.
  • the matching surface 10 of the matching means 9 has an almost complementary shape to the internal cavity 4 cross-sectional shape of the forming means 2 and it is optionally provided with a ceramic material layer.
  • Such matching surface 10 is in the end internal condition while first cross-sectional folding means 11 and first cross-sectional welding means 12 respectively fold the first cross-sectional edge T of the material M and thermoweld them matching said matching surface 10 of the matching means 9.
  • the matching surface 10 allows to carry out a thermowelding, almost airtight, of the first cross-sectional edge T.
  • the machine 1 comprises, upstream of the drum means, filling means 13 in order to insert one or more products P, for example twenty cigarettes, in a forming means 2 internal cavity 4, downstream of the first cross-sectional welding means 12 with respect to the drum means motion, whose external lateral surface 3 has the material M with the longitudinal edges and the first cross-sectional edge T welded forming an L shaped packaging.
  • the machine Downstream of the filling means, the machine comprises mobile pushing means 14, activated to translate between an external condition and an internal condition to the forming means 2 through respective elements of said machine.
  • the pushing means 14, in their movement into the forming means 2 cavity 4 from the external condition to the internal one , push the product P expelling it from such internal cavity 4.
  • the product acts on the welded cross-sectional end T of the sheet that forms the packaging L sliding it out of the forming means.
  • the product P is in the packaging L and this latter is slide out of the forming means 2 and inserted into a mobile seat means 34 of conveyor means 35.
  • the feeding means 5 are placed and activated in order to supply the material M to the forming means 2 in the position of the rotating drum means 17 where the pushing means 14 have released such forming means 2 from the material M partially thermowelded and containing the product.
  • the machine comprises second folding means 15 and second cross-sectional welding means 16 respectively fit to fold and weld the second cross-sectional edge TT of the material M of the packaging L.
  • the invention provides that the forming means 2, or arbor, are parallelepiped shaped and that its wall, for instance of metallic sheet, has a thickness comprised between 0,05 mm and 1,50 mm.
  • the material M comprises at least a sheet of multilayer printed material with both faces in thermoweldable material.
  • the external lateral surface 3 of the forming means 2 may have a generic convex shape with straight generatrices, as an example with cross-sectional section polygonal or curve shaped.
  • a further alternative of the invention provides that external lateral surface 3 of the forming means 2 has concave portions with straight generatrices, with polygonal and/or curve section for similarly shaping the packaging F.
  • Such external lateral surface 3 of the forming means 2 at least in correspondence of the concave portions, is spread with holes in flow communication with sucking means fit to maintain the sheet material M adherent to such external lateral surface 3, this latter variant of the invention allows the realization of packaging with cross-sectional section as an example, heart, star, flower and any other concave figure shaped.
  • the above mentioned filling means 13, in the case of cigarettes and similar product P, comprises an hopper means 20 for such product P, flowing into a loading means 21 fit to transfer a predefined amount of product P to one of several alveolus means 22 fixed to a transfer wheel 23 intermittently rotating.
  • the transfer wheel moves the alveolus means 22 between a loading condition, in which it is faced with the loading means 21, and a discharging condition in which it is faced with and aligned to beater means and the forming means 2 that must be filled with the product P.
  • the beater means is activated in translation in order to transfer the predefined amount of product from the alveolus means 22 to said forming means 2.
  • the inlet of the forming means 2 for the product incoming is divergently shaped towards the outside, for instance trumpet shaped, in order to facilitate such introduction without making the product block against the forming means edge.
  • Each alveolus means 22 comprises two approaching lateral mobile shells fit to compact the predefined amount of product P before their transfer into the corresponding forming means 2.
  • the alveolus means 22 are twelve and parallel to the forming means.
  • the alveolus means 22 are fixed to the transfer wheel 23 having its rotation axis parallel to the drum means 17 axis.
  • the wheel 23 is almost tangent to loading means 21 and is tangent to the drum 17 at the seat of the beater means.
  • the feeding means 5 comprise two reels 25, 26 respectively for the opening thread or ribbon of the package and for a coil belt of the material M.
  • the reels feed a cutting means 27, of the feeding means 5, to supply at least the sheet of the material M to the forming means 2 upwardly and to wrapping means 6.
  • the wrapping means 6 comprise a plurality of arms 28, 29 parallels to the longitudinal axis of the forming means and activated by corresponding actuating means to spread the sheet of the material M on the external lateral surface 3 of such forming means 2.
  • the wrapping means 6 comprise also a stop means 30 fit to block at least one of the longitudinal edges L, LL of the material M against the longitudinal stop portion 8 of the external lateral surface 3 of the forming means 2.
  • the longitudinal stop portion 8 of external lateral surface 3 of each forming means 2 is equipped with a thermo-insulating and/or non-adherent ceramic material layer 31. Ceramic layer 31 is directly placed onto the external lateral metallic surface 3 of the respective forming means 2.
  • the longitudinal welding means 7 comprise a welding roller head.
  • the first cross-sectional folding means 11 comprise at least two respective mobile members 32, 33 fit to fold and to overlap the greater sides of the first cross-sectional edge T of the material M wrapped and first cross-sectional welding means 12 comprise a welding roller head.
  • the welding roller head of the first cross-sectional welding means 12 is fixed to one of the members 33 of first cross-sectional folding means 11.
  • the first cross-sectional folding means 11 and the first cross-sectional welding means 12 are translated in transversal direction with regard to the respective maker 2.
  • Said conveyor means 35 are flexible ring like, chain or similar, and comprise a plurality of mobile housing means 34 fit, when aligned to pushing means 14 and to the forming means 2, to be emptied, for receiving the packaging L, consisting in the material M sheet with longitudinal edges and the first transversal edge T welded, containing the product P.
  • the mobile housing means 34 have shape similar to a forming means segment 2 with lightly greater size in order to contain the packaging and they are fixed, regularly spaced, to conveyors means 35 and fit to carry the respective packaging L containing the product matching with the second folding means 15 and with second cross-sectional welding means at least 16 fit at least to fold and to weld the second transversal edge TT.
  • the second transversal welding means 16 comprise a first respective welding roller head 40 placed downstream of the second folding means 15 in order to weld the second folded transversal edge TT.
  • the second transversal welding means 16 may comprise a second welding roller head 41 placed on the conveyor means side 35 opposite to the first welding roller one 40 in order to weld again the first transversal edge T.
  • Conveyors means 35 are equipped with expulsion means 37 fit to transfer each package, consisting in a material M sheet with longitudinal edges L 5 LL cross-sectional edges T, TT welded and containing one or more products P from the respective mobile housing means 34 to tape conveyor like or similar exit means 38.
  • the invention provides that the welding roller head are induction heated or, alternatively, that at least one of such welding roller head is heated by electrical resistance means.
  • the invention optionally provide that at least an opposite side to the rolls of one or more welding roller head has thermal isolation means.
  • thermal isolation means extend on each side of the welding head except the roller side.
  • the transversal fold and welding means first of all fold the short sides of transversal edges and then fold the long sides of such edges and weld them realizing flat and transversal faces orthogonal to the axis of the package.
  • the second transversal welding means 16 may consist in a welding clamp with two straight and parallel jaws, of known type, fit to weld linearly the second transversal edge of the package.
  • the machine 1 operation according to the method for packaging one or more products P with a thermoweldable material sheet M, object of the present invention, provides: to supply I through feeding means 5 at least a material sheet M to a forming means 2 of tubular shape, having an external lateral surface 3 and a passing through internal longitudinal cavity 4 and to wrapping means 6; to wrap II the material sheet M by wrapping means 6 around external lateral surface
  • thermoweld III the overlapping longitudinal edges L, LL matching a longitudinal stop portion 8 of the external lateral surface 3 of the at least a forming means 2 by longitudinal welding means 7; - to fold IV the first transversal edge T of wrapped material M, through first transversal folding means 11 finding V such edge with a matching surface 10 of a matching means 9 moved within forming means 2 until placing such surface of matching 10 aligned to the edge of internal cavity 4 of the forming means 2; to thermoweld VI through first transversal welding means 12 the first transversal folded edge T of the material M and maintained to match with the matching surface
  • the method optionally provides to thermoweld again the first transversal edge T of the material M through a second welding head 41 of second means of transversal welding 16.
  • the method provides also to make the thermoweldings with roller head heated by induction or electrical resistances.
  • the method comprises also the stages of giving a predefined concave or convex shape to the packaging and the package using forming means 2 having such predefined shape and to obtain the adhesion of the material M to the lateral surface of the forming means 2 through suction by holes made in the surface concave zones of said forming means 2 and in flow communication with suction means.
  • the package object of the present invention is made of thermoweldable material and is almost sealed and has predefined convex or concave shape with transversal flat ends orthogonal to the package longitudinal axis.
  • the package in an embodiment fit, for example, to bon-bon, sweets or similar, may have a transversal flat end and the other envelope welded that is with the transversal edge linearly crushed and with the internal edges of such edge mutually welded.
  • the package in the shape particularly fit for cigarettes, smoke products, paper handkerchiefs or napkins, small envelope and similar, has a parallelepiped shape.
  • the cigarettes or similar contained in the package are placed parallel to the longitudinal parallelepiped sides.
  • An advantage of the present invention is to provide a machine and a method, for making a fast and relatively simple package.

Abstract

Machine for packaging one or more products (P) with a thermoweldable sheet material (M) comprises: - at least a forming means (2) tubular shaped, having an external lateral surface (3) and a longitudinal internal passing cavity (4); - feeding means (5) of the material (M); - wrapping means (6) fit to wrap the material (M) with its longitudinal edges (L, LL) overlapping onto the external lateral surface (3) of the at least a forming means (2); - longitudinal welding means (7) fit to thermoweld the overlapping longitudinal edges (L5 LL); - at least a matching means (9) mobile between end conditions external and internal to the at least a forming means (2),• - first transversal fold means (11) fit to fold the first transversal edge (T) of the wrapped material (M); - first transversal welding means (12) fit to thermoweld the first transversal edge (T) of the material (M).

Description

MACHINE AND METHOD FOR PACKAGING AND PACKAGE SO OBTAINED
TECHNICAL FIELD
The present invention relates to the packaging field and refers to machine and method for making a package. Moreover the invention also relates to the package so obtained.
BACKGROUND ART
Such machine, method and package are particularly adapted for carrying out cigarette packages, sweet or snack package, handkerchiefs and grouped or single products.
Packaging machines are known for high speed packaging cigarette and similar products fit to produce cigarette packages made of several materials, such as paper coupled with aluminium, cardboard or coated board and external protection film.
Such known machines, and their respective packaging methods, have the disadvantage of being much complex and supplying expensive packages.
A further disadvantage of such known machines and methods consists in that they supply packages permeable to the air or not sufficiently sealed.
Other disadvantage of said machines and methods consists in that they are not fit to use thermowelding materials and/or flexible materials difficultly foldable.
A further disadvantage of such machines and methods consists in that they are not fit to realize predefined shapes without using heavy materials or without the packaging material being supported by the product to be packaged.
DISCLOSURE OF THE INVENTION
An object of the present invention is to propose a machine and a method for making a package and that they are fast and relatively simple.
Other object is to propose a package for one or more products fit to conserve such products and feasible also with a single sheet.
A further object is to propose a machine, a method and a packaging obtained by them, almost sealed.
Other object is to propose a method, a machine and a packaging, obtained by them, fit to maintain a predefined shape even if the packaging of the packaging is formed without containing the product.
BRIEF DESCRIPTION OF THE DRAWINGS
The characteristics of the invention are shown afterwards particularly with reference to the attached drawings in which:
figure 1 shows an axonometric view of the packaging machine, object of the present invention; - figures from 2 to 4 show respective frontal, lateral and plant views of the machine of figure 1; figures 5 and 6 show schematically, from respective point of view, enlarged and axonometric views of a drum with elements fit to execute some packaging operations and in which some parts have been removed for better evidencing the others; figure 7 shows a diagrammatic view of a sequence of packaging steps realized in the drum of figure 5.
BEST MODE OF CARRYING OUT THE INVENTION
With reference to the figures from 1 to 6, numeral 1 indicates the machine, object of the present invention, for packaging one or more products P with a thermoweldable sheet material M particularly fit to make packages of such material, containing cigarettes, cigarillos or similar products.
The machine 1 comprises twelve forming means 2, regularly spaced one from the other of 30°, fixed to a drum means 17 placed in rotation by suitable machine elements.
The longitudinal axes of the forming means 2 are parallels to the horizontal spin axis of the drum means 17. Each forming means 2, said also arbor, is tubular shaped, having an external lateral surface 3, straight parallelepiped shaped, delimiting its longitudinal internal passing cavity 4.
The machine 1 further comprises feeding means 5 of the material M, fit to supply a sheet of such material to the front side, with respect to the motion of the drum means, of the forming means 2 in the highest position of the drum.
Such sheet position by means of the feeding means allows the wrapping means 6, placed immediately downstream of such forming means, to wrap such material M sheet around said forming means, which in the meantime, is advanced in consequence of the rotating motion of the drum means.
The wrapping means wrap the sheet with a first cross-sectional edge T protruding from such forming means 2 and so that its longitudinal edges L, LL are mutually overlapped on a longitudinal stop portion 8 of the external lateral surface 3 of the forming means 2.
The machine comprises also longitudinal welding means 7 fit to thermoweld the overlapping longitudinal edges L, LL matching the longitudinal stop portion 8 of the external lateral surface 3 of the forming means 2. The longitudinal welding means 7, acting on the longitudinal edges L, LL matching the longitudinal stop portion 8, make an optimal airtight welding.
The machine 1 is provided with matching means 9 activated by suitable elements in translation along the longitudinal axis of the forming means downstream of the wrapping means, between an end condition external to the forming means 2, where it is removed therefrom, and an end condition internal to the cavity 4 of the forming means 2. In such end internal condition, a matching surface 10 of the matching means 9 is aligned to the forming means edge 2 from which the first cross-sectional edge T of the sheet material M protrudes.
The matching surface 10 of the matching means 9 has an almost complementary shape to the internal cavity 4 cross-sectional shape of the forming means 2 and it is optionally provided with a ceramic material layer.
Such matching surface 10 is in the end internal condition while first cross-sectional folding means 11 and first cross-sectional welding means 12 respectively fold the first cross-sectional edge T of the material M and thermoweld them matching said matching surface 10 of the matching means 9.
The matching surface 10 allows to carry out a thermowelding, almost airtight, of the first cross-sectional edge T.
The machine 1 comprises, upstream of the drum means, filling means 13 in order to insert one or more products P, for example twenty cigarettes, in a forming means 2 internal cavity 4, downstream of the first cross-sectional welding means 12 with respect to the drum means motion, whose external lateral surface 3 has the material M with the longitudinal edges and the first cross-sectional edge T welded forming an L shaped packaging.
Downstream of the filling means, the machine comprises mobile pushing means 14, activated to translate between an external condition and an internal condition to the forming means 2 through respective elements of said machine. The pushing means 14, in their movement into the forming means 2 cavity 4 from the external condition to the internal one , push the product P expelling it from such internal cavity 4.
The product, in its turn, acts on the welded cross-sectional end T of the sheet that forms the packaging L sliding it out of the forming means. At the end run of the pushing means, the product P is in the packaging L and this latter is slide out of the forming means 2 and inserted into a mobile seat means 34 of conveyor means 35.
The feeding means 5 are placed and activated in order to supply the material M to the forming means 2 in the position of the rotating drum means 17 where the pushing means 14 have released such forming means 2 from the material M partially thermowelded and containing the product.
In order to complete the closing of the packaging L, making the package F, the machine comprises second folding means 15 and second cross-sectional welding means 16 respectively fit to fold and weld the second cross-sectional edge TT of the material M of the packaging L.
In order to package cigarettes or similar products, the invention provides that the forming means 2, or arbor, are parallelepiped shaped and that its wall, for instance of metallic sheet, has a thickness comprised between 0,05 mm and 1,50 mm. The material M comprises at least a sheet of multilayer printed material with both faces in thermoweldable material.
Alternatively, in order to realize packages F of several shape, the external lateral surface 3 of the forming means 2 may have a generic convex shape with straight generatrices, as an example with cross-sectional section polygonal or curve shaped.
A further alternative of the invention provides that external lateral surface 3 of the forming means 2 has concave portions with straight generatrices, with polygonal and/or curve section for similarly shaping the packaging F. Such external lateral surface 3 of the forming means 2, at least in correspondence of the concave portions, is spread with holes in flow communication with sucking means fit to maintain the sheet material M adherent to such external lateral surface 3, this latter variant of the invention allows the realization of packaging with cross-sectional section as an example, heart, star, flower and any other concave figure shaped. The above mentioned filling means 13, in the case of cigarettes and similar product P, comprises an hopper means 20 for such product P, flowing into a loading means 21 fit to transfer a predefined amount of product P to one of several alveolus means 22 fixed to a transfer wheel 23 intermittently rotating.
The transfer wheel moves the alveolus means 22 between a loading condition, in which it is faced with the loading means 21, and a discharging condition in which it is faced with and aligned to beater means and the forming means 2 that must be filled with the product P. The beater means is activated in translation in order to transfer the predefined amount of product from the alveolus means 22 to said forming means 2.
The inlet of the forming means 2 for the product incoming is divergently shaped towards the outside, for instance trumpet shaped, in order to facilitate such introduction without making the product block against the forming means edge.
Each alveolus means 22 comprises two approaching lateral mobile shells fit to compact the predefined amount of product P before their transfer into the corresponding forming means 2. The alveolus means 22 are twelve and parallel to the forming means.
As seen, the alveolus means 22 are fixed to the transfer wheel 23 having its rotation axis parallel to the drum means 17 axis. The wheel 23 is almost tangent to loading means 21 and is tangent to the drum 17 at the seat of the beater means.
The feeding means 5 comprise two reels 25, 26 respectively for the opening thread or ribbon of the package and for a coil belt of the material M. The reels feed a cutting means 27, of the feeding means 5, to supply at least the sheet of the material M to the forming means 2 upwardly and to wrapping means 6.
The wrapping means 6 comprise a plurality of arms 28, 29 parallels to the longitudinal axis of the forming means and activated by corresponding actuating means to spread the sheet of the material M on the external lateral surface 3 of such forming means 2. The wrapping means 6 comprise also a stop means 30 fit to block at least one of the longitudinal edges L, LL of the material M against the longitudinal stop portion 8 of the external lateral surface 3 of the forming means 2.
The longitudinal stop portion 8 of external lateral surface 3 of each forming means 2 is equipped with a thermo-insulating and/or non-adherent ceramic material layer 31. Ceramic layer 31 is directly placed onto the external lateral metallic surface 3 of the respective forming means 2. The longitudinal welding means 7 comprise a welding roller head.
The first cross-sectional folding means 11 comprise at least two respective mobile members 32, 33 fit to fold and to overlap the greater sides of the first cross-sectional edge T of the material M wrapped and first cross-sectional welding means 12 comprise a welding roller head.
The welding roller head of the first cross-sectional welding means 12 is fixed to one of the members 33 of first cross-sectional folding means 11. The first cross-sectional folding means 11 and the first cross-sectional welding means 12 are translated in transversal direction with regard to the respective maker 2. Said conveyor means 35 are flexible ring like, chain or similar, and comprise a plurality of mobile housing means 34 fit, when aligned to pushing means 14 and to the forming means 2, to be emptied, for receiving the packaging L, consisting in the material M sheet with longitudinal edges and the first transversal edge T welded, containing the product P.
The mobile housing means 34 have shape similar to a forming means segment 2 with lightly greater size in order to contain the packaging and they are fixed, regularly spaced, to conveyors means 35 and fit to carry the respective packaging L containing the product matching with the second folding means 15 and with second cross-sectional welding means at least 16 fit at least to fold and to weld the second transversal edge TT.
The second transversal welding means 16 comprise a first respective welding roller head 40 placed downstream of the second folding means 15 in order to weld the second folded transversal edge TT.
Optionally the second transversal welding means 16 may comprise a second welding roller head 41 placed on the conveyor means side 35 opposite to the first welding roller one 40 in order to weld again the first transversal edge T.
Conveyors means 35 are equipped with expulsion means 37 fit to transfer each package, consisting in a material M sheet with longitudinal edges L5 LL cross-sectional edges T, TT welded and containing one or more products P from the respective mobile housing means 34 to tape conveyor like or similar exit means 38.
The invention provides that the welding roller head are induction heated or, alternatively, that at least one of such welding roller head is heated by electrical resistance means. In order to reduce the thermal dispersion and protect the machine members from the heat, the invention optionally provide that at least an opposite side to the rolls of one or more welding roller head has thermal isolation means.
It is also provided that the thermal isolation means extend on each side of the welding head except the roller side.
The transversal fold and welding means first of all fold the short sides of transversal edges and then fold the long sides of such edges and weld them realizing flat and transversal faces orthogonal to the axis of the package. Alternatively, the second transversal welding means 16 may consist in a welding clamp with two straight and parallel jaws, of known type, fit to weld linearly the second transversal edge of the package.
Referring now to figure 7 in which the different steps are labelled with roman numerals, the machine 1 operation according to the method for packaging one or more products P with a thermoweldable material sheet M, object of the present invention, provides: to supply I through feeding means 5 at least a material sheet M to a forming means 2 of tubular shape, having an external lateral surface 3 and a passing through internal longitudinal cavity 4 and to wrapping means 6; to wrap II the material sheet M by wrapping means 6 around external lateral surface
3 of the at least a forming means 2 overlapping the sheet longitudinal edges L, LL and with a first transversal edge T of the protruding sheet from the at least a forming means 2; to thermoweld III the overlapping longitudinal edges L, LL matching a longitudinal stop portion 8 of the external lateral surface 3 of the at least a forming means 2 by longitudinal welding means 7; - to fold IV the first transversal edge T of wrapped material M, through first transversal folding means 11 finding V such edge with a matching surface 10 of a matching means 9 moved within forming means 2 until placing such surface of matching 10 aligned to the edge of internal cavity 4 of the forming means 2; to thermoweld VI through first transversal welding means 12 the first transversal folded edge T of the material M and maintained to match with the matching surface
10 of the matching means 9; to extract VII the matching means 9 from the cavity 4 of the forming means 2 around which is wrapped the packaging L consisting in the material M with the longitudinal edges and the first transversal edge T welded; - to insert VIII, through filling means 13, one or more products P in internal cavity 4 of the forming means 2 around which the packaging L is wrapped; to eject IX through pushing means 14, mobile in internal cavity 4 of the forming means 2, one or more products P from such cavity 4 inserting them in the packaging L and taking off such packaging L from the at least a forming means 2; - to fold and to weld X, through second folding means 15 and second transversal welding means 16, the second transversal edge TT of the material M of the packaging L so making a package F containing one or more products P.
The method optionally provides to thermoweld again the first transversal edge T of the material M through a second welding head 41 of second means of transversal welding 16.
The method provides also to make the thermoweldings with roller head heated by induction or electrical resistances. The method comprises also the stages of giving a predefined concave or convex shape to the packaging and the package using forming means 2 having such predefined shape and to obtain the adhesion of the material M to the lateral surface of the forming means 2 through suction by holes made in the surface concave zones of said forming means 2 and in flow communication with suction means.
The package object of the present invention is made of thermoweldable material and is almost sealed and has predefined convex or concave shape with transversal flat ends orthogonal to the package longitudinal axis.
Alternatively the package, in an embodiment fit, for example, to bon-bon, sweets or similar, may have a transversal flat end and the other envelope welded that is with the transversal edge linearly crushed and with the internal edges of such edge mutually welded.
The package in the shape particularly fit for cigarettes, smoke products, paper handkerchiefs or napkins, small envelope and similar, has a parallelepiped shape. The cigarettes or similar contained in the package are placed parallel to the longitudinal parallelepiped sides.
An advantage of the present invention is to provide a machine and a method, for making a fast and relatively simple package.
Other advantage is to provide a package for one or more products fit to stock such products and feasible also with a single sheet.
Further advantage is to provide a machine, a method and a package so obtained, almost sealed airtight.
Other advantage is to provide a method, a machine and a package, so made, fit to maintain a predefined shape even if the package packaging is formed without the product.

Claims

1) Machine for packaging one or more products (P) with a thermoweldable sheet material (M) characterized in that it comprises: - at least a forming means
(2) tubular shaped, having an external lateral surface
(3) and a longitudinal internal passing cavity (4);
- feeding means (5) of the material (M);
- wrapping means (6) fit to wrap the material (M) with its longitudinal edges (L5 LL) overlapping onto the external lateral surface (3) of the at least a forming means (2) and with a first transversal edge (T) protruding from the at least a forming means (2);
- longitudinal welding means (7) fit to thermoweld the overlapping longitudinal edges (L, LL) matching with a stop longitudinal portion (8) of the external lateral surface (3) of the at least a forming means (2); - at least a matching means (9) mobile between end conditions external and internal to the at least a forming means (2) and in which it is respectively removed from the at least a forming means (2) and internal thereto placing one of its matching surface (10) aligned to the edge, corresponding to the first transversal edge (T) of the sheet material (M), of the longitudinal internal passing cavity (4) of the at least a forming means (2);
- first transversal fold means (11) fit to fold the first transversal edge (T) of the wrapped material (M);
- first transversal welding means (12) fit to thermoweld the first transversal edge (T) of the material (M) matching the matching surface (10) of the at least a matching means (9) at its internal condition.
2) Machine according to claim 1 characterized in that comprises filling means (13) fit to insert one or more products (P) in the internal cavity (4) of the at least a forming means (2) whose external lateral surface (3) has the material (M) with the longitudinal edges and the first transversal edge (T) welded.
3) Machine according to claim 2 characterized in that comprises pushing means (14) mobile between an external condition and an internal to the at least one forming means (2) in order to eject one or more products (P) from the internal cavity (4) inserting them into the packaging (L), consisting of the material (M) with the longitudinal edges and the first transversal edge (T) welded, sliding out such packaging (L) of the at least one forming means (2).
4) Machine according to claim 3 characterized in that comprises second folding means (15) and second transversal welding means (16) fit to respectively fold and weld the second transversal edge (TT) of the material (M) of the packaging (L) making a package (F) containing one or more products.
5) Machine according to claim 4 characterized in that the product (P) consists in a set of cigarettes or similar, that the forming means (2) is parallelepiped shaped and its wall has thickness comprised between 0,05 mm and 1,50 mm and that the material (M) comprises at least a sheet of multilayer printed material with both the faces of thermoweldable material.
6) Machine according to claim 4 characterized in that the external lateral surface (3) of the forming means (2) has convex shape with straight generatrices, with polygonal section and/or curve for similarly shaping the package (F).
7) Machine according to claim 4 characterized in that the external lateral surface (3) of the forming means (2) has concave portions with straight generatrices, with polygonal section and/or curve for similarly shaping the package (F).
8) Machine according to claim 7 characterized in that the external lateral surface (3) of the forming means (2), at least in correspondence of the concave portions, is spread of holes in flow communication with sucking means fit to maintain the sheet material (M) adherent to such external lateral surface (3).
9) Machine according to claim 1 or to claim 5 characterized in that comprises a plurality of forming means (2), regularly spaced, fixed to drum rotating means (17) with the rotation axis parallel to the longitudinal axis of the forming means (2).
10) Machine according to claim 2 characterized in that the filling means (13) comprises hopper means (20) for the products (P) flowing into loading means (21) fit to transfer a predefined amount of products (P) to at least alveolus means (22) mobile between a loading condition, in which it is faced to the loading means (21), and an unloading condition in which it is almost aligned to the at least a forming means (2) fit to allow a beater means, aligned to at least a forming means (2), to transfer the predefined amount of product from the alveolus means (22) to the at least a forming means (2)
11) Machine according to claim 10 characterized in that the inlet for the predefined amount of products (P) of the at least a forming means (2) is divergent shaped towards the outside of this latter in order to facilitate the introduction of such predefined amount of products (P).
12) Machine according to claim 10 characterized in that the alveolus means (22) comprises two lateral mobile approaching shells in order to compact the predefined amount of products (P) before their transfer to the at least a forming means (2).
13) Machine according to claims 9 and 12 characterized in that comprises a plurality of alveolus means (22) parallels to the forming means and, regularly spaced, to a transfer wheel (23) with axis parallel to the axis of the drum means (17) and almost tangent to this latter and to the loading means (21).
14) Machine according to claim 1 characterized in that feeding means (5) comprises at least a reel (25, 26) for at least a coil belt of the material (M) fit to feed a cutting means (27) in order to supply the sheet of the material (M) to a forming means (2) and to the wrapping means (6).
15) Machine according to claim 1 characterized in that the wrapping means (6) comprise a plurality of arms (28, 29) activated by respective actuating means fit to spread the sheet of the material (M) on the external lateral surface (3) of the at least one forming means (2) and comprises stop means (30) fit to block at least one of the longitudinal edges (L5 LL) of the material (M) against the stop longitudinal portion (8) of the external lateral surface (3) of at least a forming means (2).
16) Machine according to claim 15 characterized in that the stop longitudinal portion (8) of the external lateral surface (3) of the at least a forming means (2) has a layer (31) of applied thermal insulation and/or anti-adherent material.
17) Machine according to claim 16 characterized in that the layer (31) is made of ceramic material.
18) Machine according to claim 17 characterized in that the ceramic layer (31) is directly applied onto the metallic external lateral surface (3) of the at least a forming means (2).
19) Machine according to claim 1 or claim 16 characterized in that the longitudinal welding means (7) comprise a welding roller head.
20) Machine according to claim 1 characterized in that the matching surface (10) of the matching means (9) has an almost complementary shape to those of the transversal section of the internal cavity (4) of the at least a forming means (2).
21) Machine according to claim 1 characterized in that the matching surface (10) has a layer (31) made of ceramic material.
22) Machine according to claim 1 characterized in that the first transversal fold means (11) comprise at least two respective mobile members (32, 33) fit to fold and overlap the greater sides of the first transversal edge (T) of the wrapped material (M).
23) Machine according to claim 1 characterized in that the first transversal welding means (12) comprises a welding roller head.
24) Machine according to claims 22 and 23 characterized in that the welding roller head of the first transversal welding means (12) is fixed to one of the members (33) of the first transversal folding means (11).
25) Machine according to claim 3 characterized in that comprises mobile seat means (34) fit to receive the sheet of the material (M), in an aligning condition with pushing means (14) and with at least one forming means (2), with the longitudinal edges and the first transversal edge (T) welded and containing one or more products
(P)-
26) Machine according to claims 4 and 25 characterized in that comprises several fixed means to mobile seat (34), regularly spaced, to conveyors means (35) and fit to carry each sheet of the material (M) with the longitudinal edges and the first transversal edge (T) welded and containing one or more products (P) matching with second folding means (15) and with the second means of transversal welding (16) at least to fold and to weld the second transversal edge (TT).
27) Machine according to claim 26 characterized in that the mobile seat means (34) has shape similar to the shape of a forming means (2).
28) Machine according to claim 26 characterized in that the conveyors means (35) are of flexible ring (36), chain or similar, type.
29) Machine according to claim 26 characterized in that the conveyors means (35) are provided with expulsion means (37) fit to transfer each package, consisting in a sheet of the material (M) with welded longitudinal (L, LL) and transversal (T, TT) edges containing one or more products (P) from the respective mobile seat means (34) to tape conveyor like or similar exit means (38).
30) Machine according to claim 26 characterized in that the second transversal welding (16) means comprise at least a first respective welding roller head (40) placed downstream of the second folding means (15) in order to weld the second folded transversal edge (TT).
31) Machine according to claim 30 characterized in that the transversal welding second means (16) comprise a second respective welding roller head (41) placed in the side of the conveyor means (35) at opposite side to the first welding roller head (40) to weld again the first transversal edge (T).
32) Machine according to claims 19, 23, 24, 30 or 31 characterized in that at least one of the welding roller heads is heated through induction.
33) Machine according to claims 19, 23, 24, 30 or 31 characterized in that at least one of the welding roller heads is heated by electrical resistance means.
34) Machine according to claims 32 or 33 characterized in that at least a side opposite to the rolls of at least one of the welding roller heads is provided with thermal insulation means.
35) Machine according to claim 34 characterized in that the thermal insulation means extend over all sides of the welding head with exception of the rolls side.
36) Machine according to claim 9 characterized in that the feeding means (5) are placed and activated to supply the material (M) to the forming means (2) in the position of the rotating drum means (17) in which the pushing means (14) released such forming means (2) from the partially thermowelded material (M) containing the product.
37) Method for packaging one or more products (P) with a sheet thermoweldable material (M) characterized in the fact of:
- supplying through feeding means (5) at least a sheet of the material (M) to a forming means (2) of tubular shape, having an external lateral surface (3) and a longitudinal internal passing cavity (4) and to wrapping means (6);
- wrapping the sheet of the material (M) through wrapping means (6) around the external lateral surface (3) of the at least a forming means (2) overlapping the sheet longitudinal edges (L, LL) and with a first transversal edge (T) of the protruding sheet from the at least a forming means (2);
- thermowelding the overlapped longitudinal edges (L, LL) matching with a stop longitudinal portion (8) of the external lateral surface (3) of the at least a forming means (2) through longitudinal welding means (7);
- folding the first transversal edge (T) of the wrapped material (M), through first transversal folding means (11) matching such edge with a matching surface (10) of a matching means (9) moved inside the forming means (2) until placing such surface (10) aligned to the edge of the internal cavity (4) of the forming means
(2);
- thermowelding through first transversal welding means (12) the first transversal folded edge (T) of the material (M) maintained to match with the matching surface (10) of the matching means (9);
- extracting the matching means (9) from the cavity (4) of the forming means (2) around which the packaging (L) is wrapped consisting in the material (M) with the longitudinal edges and the first transversal edge (T) welded; - inserting, through filling means (13), one or more products (P) in the internal cavity (4) of the forming means (2) around which the packaging (L) is wrapped;
- ejecting through the pushing means (14), mobile in the internal cavity (4) of the forming means (2), one or more products (P) from such cavity (4) inserting them into the packaging (L) and sliding out such packaging (L) of the at least a forming means (2);
- folding and welding, through second folding means (15) and second of transversal welding means (16), the second transversal edge (TT) of the material (M) of the packaging (L) making a package (F) containing one or more products
(P)-
38) Method according to claim 37 characterized in that thermowelds again the first transversal edge (T) of the material (M) through a second welding head (41) of the second means of transversal welding (16).
39) Method according to claim 38 characterized in that makes the thermo weldings through heated roller heads by induction or electrical resistances.
40) Method according to claim 37 characterized in that gives a predefined concave or convex shape to the packaging and the package by using forming means (2) having such predefined shape.
41) Method according to claim 40 characterized in that obtains the adhesion of the material (M) to the lateral surface of the forming means (2) through holes made at least in the concave seats of such forming means (2) surface and in flow communication with the sucking means.
42) Package carried out according to the method of any one of the claims from 37 to 41 characterized in that is made of thermo weldable material and is almost sealed.
43) Package according to claim 42 characterized in that has a predefined convex or concave shape.
44) Package according to claim 43 characterized in that has a parallelepiped shape containing cigarettes or similar parallel placed to the longitudinal parallelepiped sides.
PCT/IB2007/001309 2006-05-22 2007-05-21 Machine and method for packaging and package so obtained WO2007135539A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO2006A000390 2006-05-22
ITBO20060390 ITBO20060390A1 (en) 2006-05-22 2006-05-22 MACHINE AND METHOD FOR PACKAGING AND PACKAGING SO FULLY OBTAINED.

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
DE102009045617A1 (en) * 2009-10-13 2011-04-14 Robert Bosch Gmbh Device for manufacturing packing, comprises mandrel wheel with number of mandrels, at which packing is folded, where mandrel wheel has mandrel wheel hub, where mandrels are arranged at mandrel wheel hub
CN102616400A (en) * 2008-05-26 2012-08-01 吉第联合股份公司 Wrapping method and unit for folding a sheet of wrapping material about a group of cigarettes
CN105173211A (en) * 2015-09-22 2015-12-23 佛山市方悦机械科技有限公司 Paper sheet locating mechanism on paper box packaging lines
US9667441B2 (en) 2013-03-18 2017-05-30 Mellanox Technologies Ltd. Uniting FDB lookups for encapsulated packets
CN109533443A (en) * 2018-11-16 2019-03-29 陈伟景 Candy packaging machine
IT202100032948A1 (en) * 2021-12-29 2023-06-29 Jones & Co Inc R A Unit of packing items into boxes and method of packing items into boxes
WO2023126773A1 (en) * 2021-12-29 2023-07-06 R.A Jones & Co. Packaging unit for packaging articles in boxes and method for packaging articles in boxes

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US2603925A (en) * 1948-10-14 1952-07-22 Moore George Arlington Heat-sealing wrapping machine
CH354713A (en) * 1953-12-28 1961-05-31 Pull Packaging International I A method of packaging articles, in particular cigarettes, and a packaging machine for implementing this method
GB1532654A (en) * 1975-10-28 1978-11-15 American Brands Process for producing a sealed package and a package produced by this process

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US2603925A (en) * 1948-10-14 1952-07-22 Moore George Arlington Heat-sealing wrapping machine
CH354713A (en) * 1953-12-28 1961-05-31 Pull Packaging International I A method of packaging articles, in particular cigarettes, and a packaging machine for implementing this method
GB1532654A (en) * 1975-10-28 1978-11-15 American Brands Process for producing a sealed package and a package produced by this process

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102616400A (en) * 2008-05-26 2012-08-01 吉第联合股份公司 Wrapping method and unit for folding a sheet of wrapping material about a group of cigarettes
CN102616400B (en) * 2008-05-26 2014-10-29 吉第联合股份公司 Wrapping method and unit for folding a sheet of wrapping material about a group of cigarettes
DE102009045617A1 (en) * 2009-10-13 2011-04-14 Robert Bosch Gmbh Device for manufacturing packing, comprises mandrel wheel with number of mandrels, at which packing is folded, where mandrel wheel has mandrel wheel hub, where mandrels are arranged at mandrel wheel hub
US9667441B2 (en) 2013-03-18 2017-05-30 Mellanox Technologies Ltd. Uniting FDB lookups for encapsulated packets
CN105173211A (en) * 2015-09-22 2015-12-23 佛山市方悦机械科技有限公司 Paper sheet locating mechanism on paper box packaging lines
CN109533443A (en) * 2018-11-16 2019-03-29 陈伟景 Candy packaging machine
IT202100032948A1 (en) * 2021-12-29 2023-06-29 Jones & Co Inc R A Unit of packing items into boxes and method of packing items into boxes
WO2023126773A1 (en) * 2021-12-29 2023-07-06 R.A Jones & Co. Packaging unit for packaging articles in boxes and method for packaging articles in boxes

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