EP3145814B1 - Procédé de fabrication d'un emballage destiné à un produit alimentaire, en particulier un produit de confiserie - Google Patents

Procédé de fabrication d'un emballage destiné à un produit alimentaire, en particulier un produit de confiserie Download PDF

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Publication number
EP3145814B1
EP3145814B1 EP15732356.9A EP15732356A EP3145814B1 EP 3145814 B1 EP3145814 B1 EP 3145814B1 EP 15732356 A EP15732356 A EP 15732356A EP 3145814 B1 EP3145814 B1 EP 3145814B1
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EP
European Patent Office
Prior art keywords
product
flange
receiving
sealing
portions
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.)
Active
Application number
EP15732356.9A
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German (de)
English (en)
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EP3145814A1 (fr
Inventor
Enrico Sappa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferrero SpA
Soremartec SA
Original Assignee
Ferrero SpA
Soremartec SA
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 Ferrero SpA, Soremartec SA filed Critical Ferrero SpA
Priority to PL15732356T priority Critical patent/PL3145814T3/pl
Publication of EP3145814A1 publication Critical patent/EP3145814A1/fr
Application granted granted Critical
Publication of EP3145814B1 publication Critical patent/EP3145814B1/fr
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Classifications

    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/28—Articles or materials wholly enclosed in composite wrappers, i.e. wrappers formed by associating or interconnecting two or more sheets or blanks
    • B65D75/30—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B65D75/32—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents
    • B65D75/36—Articles or materials enclosed between two opposed sheets or blanks having their margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding one or both sheets or blanks being recessed to accommodate contents one sheet or blank being recessed and the other formed of relatively stiff flat sheet material, e.g. blister packages, the recess or recesses being preformed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/50—Enclosing articles, or quantities of material, by disposing contents between two sheets, e.g. pocketed sheets, and securing their opposed free margins
    • 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
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/005—Packaging other articles presenting special problems packaging of confectionery
    • 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
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/04—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of mechanical pressure
    • B65B47/06—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of mechanical pressure using folding dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B49/00—Devices for folding or bending wrappers around contents
    • B65B49/06—Resilient folders, e.g. brushes, diaphragms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • 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
    • B65D85/60—Containers, packaging elements or packages, specially adapted for particular articles or materials for sweets or like confectionery products

Definitions

  • the present invention relates to a process for producing a package for foodstuff product, in particular a confectionery product, comprising the steps of:
  • the above type of process is frequently used for packaging confectionery products, typically chocolate-based ones, the outer surface of which has a particular shape, representing, for example, fantasy human or animal characters, or again objects linked to traditions of festivals, such as Christmas bells or Easter eggs, in order to produce packages that reproduce on the outside exactly the particular shape thereof.
  • the two sheets of wrapping material of the package are made to adhere to the entire outer surface of the product.
  • the folded flange mentioned at the start is obtained so as to identify as a whole a profile substantially corresponding to the external contour of the packaged product so that the product is as if it were framed.
  • packages of the type in question may at times be present on the shelves of sales outlets partially open, with the peripheral portions of the two sheets locally detached. This is due to the fact that, during handling and transport of the packages, the flange can accidentally unfold in one or more parts, and at that point, given that the corresponding peripheral portions of the two sheets are no longer constrained together, they start to separate, thus rendering the inside of the packages accessible.
  • the present invention falls within the above context and its object is to provide a process of the type indicated at the start that will enable a package to be obtained that is less subject to the aforesaid drawbacks.
  • the aforementioned object is achieved via a process presenting the characteristics specified in Claim 1.
  • the present invention moreover regards a package obtained via the process in question, and a device for implementing the sealing step envisaged in said process.
  • Figure 1 illustrates an example of package for a product P, in the specific case an Easter egg, obtained according to the process described herein.
  • the above type of package designated in Figure 1 by the reference number 10, comprises a first sheet of wrapping material 2 and a second sheet of wrapping material 4 coupled together.
  • the sheet 2 has a portion for receiving the product 2a and a peripheral portion 2b that surrounds the receiving portion 2a.
  • the sheet 4 has a portion for receiving the product 4a and a peripheral portion 4b that surrounds the receiving portion 4a.
  • the sheets 2 and 4 are coupled together in such a way that the receiving portions 2a, 4a will define together a closed cavity C in which the product P is housed, and in such a way that the peripheral portions 2b, 4b are set in contact with one another so as to form a flange 6 surrounding the cavity C (see Figure 1A ) .
  • FIG. 1B is an enlarged representation that does not respect the real proportions of the various elements, provided to enable an immediate understanding of the structure of the flange 6.
  • the folding line "s" is constituted by a perimetral band.
  • the thicknesses of the sheets 2 and 4 have dimensions that are so small, compared to the structure of the package, that the band can actually be approximated by a line, namely, a folding line.
  • the portions for receiving the product 2a and 4a which together identify the cavity C, each reproduce the conformation of the outer surface of the corresponding part of the product P so as adhere substantially to the product.
  • This configuration enables the package to reproduce, substantially identically, the shape of the product contained therein.
  • the receiving portions 2a and 4a may hence be of any shape that depends only upon the shape of the packaged product, and may consequently also differ from one another, for example in the cases where the product has different opposite faces.
  • the receiving portions 2a and 4a do not both have a generic half-shell shape as in the example illustrated, but, instead, one of them is completely plane.
  • the line of connection of the sheets 1 and 2 inside the cavity C is, throughout its extension or at least part thereof, directly in contact with the product P, and the folding line "s" of the flange 6 extends parallel thereto, so that as a whole the flange reproduces almost exactly the profile that the product P has in the plane of the flange.
  • the aesthetic result is that of a greater enhancement of the global shape of the product.
  • the process described herein is characterized in that it envisages forming on said flange a plurality of sealing areas 60, distinct and separate from one another, designed to keep the aforesaid first and second sheets together, and in that the sealing areas are obtained at at least a minimum distance from the aforesaid first receiving portion and/or second receiving portion.
  • the aforesaid minimum distance is such that the sealing areas are located, after the folding step, in the distal part of the folded flange, and are not traversed by the folding line.
  • sealing area any region of the two sheets 1 and 2 at which they are joined together as a result, for example, of a sealing operation, a gluing operation, or any other operation that has the effect of getting the two sheets to adhere together in a permanent way.
  • each sealing area has, in a direction substantially orthogonal to the corresponding stretch of the aforesaid closed path, a dimension preferably smaller than or equal to the width of the distal part 6b of the folded flange 6. In various even more preferred embodiments, this dimension constitutes the minimum dimension of the above area.
  • the areas 60 have a preferably rectangular shape but may even have any other shape, and may all be the same as one another, or else the same in subsets, or, again, all different from one another.
  • the sealing areas in question have the function of holding together the two sheets that make up the package in such a way that these do not separate from one another.
  • This overcomes the drawbacks described at the start regarding traditional packages, since, in the case where the folded flange 6 opens locally or completely, the sheets 1 and 2 in any case remain constrained together in the areas 60.
  • the maximum distance between two consecutive areas 60 may be chosen in such a way that the sheets 1 and 2 will remain in any case in contact along the portions 2b and 4b between the two areas, even in the absence of the folded flange, as a result of the internal stresses determined by the presence of the two contiguous areas 60.
  • the distance in question is smaller than or equal to 50 mm, according to the perimeter of the flange and the size of the product. The sealing obtained is not, instead, such as to close the package hermetically.
  • the characteristic indicated above is moreover advantageous in the cases where the areas 60 are obtained via a proper welding process, in so far as it prevents the heat necessary for sealing the two sheets from causing at the same time melting or in any case a variation of consistency of the product P.
  • Providing the sealing areas at a distance from the portions for receiving the product presupposes, in fact, that the sealing means themselves are located at a distance from these portions (which already in itself reduces the amount of heat coming from the sealing means that reaches the product). In the space provided between these and the product, it is then possible to insert means for protecting the product P from the heat generated during sealing.
  • sealing areas 60 on the distal portion 6b of the folded flange 6 guarantees that the end edges of the two sheets 1 and 2 are perfectly coincident, i.e., aligned - thus preventing the internal sides of the two sheets from remaining in view - and that the portions 2b, 4b are laid out perfectly on top of one another without forming any creases.
  • FIGS. 2 to 25 are schematic illustrations having merely the purpose of enabling an immediate understanding of the main aspects of the process and of the means used to implement it.
  • FIGs 2 to 25 are schematic illustrations having merely the purpose of enabling an immediate understanding of the main aspects of the process and of the means used to implement it.
  • reference will be made to production of a single package, but it is clear that the same means described may be easily configured for producing simultaneously a number of packages at the same time.
  • the process envisages in the first place providing the first and second sheets of wrapping material 2 and 4 that will constitute the package.
  • the sheets 2 and 4 are preferably made of a plastically deformable material, typically aluminium, of a thickness of from 10 ⁇ m to 40 ⁇ m, and are coated with a layer of heat-meltable or heal-sealable material, for example polyethylene or any other plastic material of a similar type, or else are coated with a heat-sealing lacquer.
  • the process envisages shaping the first and second sheets so as to define on them the portions 2a and 4a for receiving the product shown in Figure 1B .
  • the process envisages use of moulds 8' and 8", which have respective mould cavities 9 and 11 of a shape corresponding to complementary portions of the outer surface of the product to be packaged.
  • the sheets 2 and 4 are set on the moulds 8' and 8", and for example with the aid of a pad 10, having a shape complementary to the surface of the mould cavity, are subjected to a drawing operation through which formed on the sheets 2 and 4 are the parts 2a and 4a for receiving the product, surrounded respectively by the peripheral portions 2b and 4b, of a substantially plane conformation.
  • the shaped sheets 2 and 4 are then transferred into the auxiliary supports 12 and 14, which have respective seats 16 and 18, for receiving the shaped parts 2a and 4a, and respective plane surfaces 20 and 22, which surround the seats 16 and 18 and are designed to support the flange portions 2b and 4b.
  • the support 12 in the example illustrated has an annular slit or groove 24 (see Figure 5 ) surrounding the seat 16 of the support, the function of which will be described in what follows.
  • the supports 12 and 14 can be moved with respect to one another between an open condition, for example illustrated in Figure 4 , and a closed condition, for example illustrated in Figure 7 , and moreover, in the latter condition, be rotated together, about an axis orthogonal to the plane of the figures.
  • the means for obtaining these movements of the supports 12 and 14 may be of any type already known to the person skilled in the sector and consequently will not be described in detail herein.
  • the article P is positioned, with transfer means in themselves known, for example of the suction-pad type, in the receiving part 4a of the sheet 4, and, then, by turning over the support 12 through 180° onto the support 14 ( Figures 6 and 7 ), the sheet 2 is coupled to the sheet 4 in a position overlying the surface portion of the article P that emerges from the seat 18.
  • a configuration is thus obtained in which the two sheets 2 and 4 are set with their peripheral portions 2b and 4b in contact with one another to form the flange 6, and with their receiving portions 2a and 4a that together define the cavity C containing the product P.
  • the supports 12 and 14 are brought into their open condition as illustrated in Figure 8 .
  • the process described herein envisages at this point providing the sealing areas 60, in order to join the sheets 2 and 4 together.
  • the process described herein is characterized in providing the various sealing areas 60 at a given distance from the receiving portions of the two sheets of wrapping material that is greater than or equal to a minimum distance.
  • this is selected in such a way that, after the folding step, the sealing areas come to be located on the distal part of the folded flange 6, and are not traversed by the folding line defined therein.
  • This value is hence a function of the width of the proximal part of the folded flange and, in general, with respect to said width, may be the same or greater.
  • the width of the areas 60 themselves - measured for each area in a direction transverse to the corresponding stretch of the aforesaid closed path T - evidently cannot be, instead, greater than the width of the distal part of the folded flange.
  • the process described herein envisages the use of a sealing device 52.
  • This device in general comprises supporting means configured for receiving the sheets 2 and 4 coupled together, which identify a seat on which the receiving portion 2a or 4a of the above sheets is to be set, and a contrast surface, preferably plane, on which the peripheral portions 2b, 4b is to be set.
  • the device 52 further comprises a pressure element 54 having a series of heating sections 54a corresponding in number and shape to the series of the areas 60 to be obtained on the flange 6.
  • the element 54 is actuated by motor means 53 for pressing with the sections 54a the parts 2b, 4b against the aforesaid contrast surface.
  • these supporting means are constituted by one of the supports 12 and 14 themselves, in this case the aforesaid seat being constituted by the seats 16 and 18 of the above supports, whereas the aforesaid contrast surface is constituted by their surfaces 20, 22.
  • the supporting means in question are, instead, constituted by a support that is altogether similar to the supports 12 and 14 but is exclusively designed for use with the sealing device 52.
  • optionally set on the aforesaid contrast surface is an elastic element 44, for example made of silicone, against which the parts 2b, 4b are pressed.
  • the element 44 has the function of compensating, as a result of its elastic consistency, any possible imperfections of the contrast surface and/or of the sections 54a.
  • the elastic element 44 is received in a corresponding groove obtained in the contrast surface 22.
  • the sections 54a are in a number corresponding to the number of the areas 60 and moreover have a corresponding shape.
  • the plurality of sections 54a extend along a closed path such that, in the operative condition of the element 54, they arrange themselves around the receiving portions 2a, 4a, remaining at a distance equal at least to the aforesaid minimum distance of the areas 60, designated by H in Figure 9A .
  • the device 52 preferably comprises a cooling body 56, set within the element 54 and configured for covering the shaped part 4a of the package and the portion of product contained therein, preventing direct exposure thereof to the heating sections and absorbing the heat transmitted by them.
  • the body 56 has in particular a cavity 56a, designed to receive the shaped part 4a, and an edge 56b, which surrounds the cavity and has a width such that it can be inserted in the space between the sections 54a and the shaped part 4a.
  • the device 52 further comprises means for circulation of a cooling fluid (not illustrated) within the body 56.
  • the body 56 comprises one or more ducts that are set around the cavity 56a and are associated to supply means designed to cause circulation in these ducts of the cooling fluid.
  • the cooling fluid absorbs the heat emitted by the heating sections 54a, thus preventing it from heating the portion 4a and the product P.
  • the body 56 can be carried by the pressure element 54 itself, or else by a separate movement structure, actuation of which is co-ordinated with the element 54.
  • cooling body 56 instead of the cooling body 56 it is possible to envisage simply a body made of insulating material designed to prevent transfer of heat to the product P.
  • the protection means described above are optional and, according to the applications, they could even be absent, taking amongst other things into account that the sealing areas 60 are precisely at a given distance from the product and extend locally for limited stretches and not all around the product itself so that the amount of heat that reaches the product is in any case limited.
  • the distance H between the heating sections 54a and the product P may hence be sufficient to prevent damage to the product due to the heat emitted by the above sections.
  • the means described above may, instead, become necessary for very delicate articles and/or for very small packages in which sealing is in any case performed very close to the product.
  • the sealing device 52 described above may constitute a station within a packaging plant, which carries out on line one or more of the operations previously described, or else may constitute a stand-alone device, supplied to which by the line of the plant are the products P with the corresponding sheets 2 and 4 associated thereto.
  • the process described herein finally envisages providing the folded flange of the package.
  • this step envisages folding the flange 6 on itself, along the folding line "s", so as to identify the proximal part 6a and the distal part 6b.
  • the distal part 6b is folded back towards the cavity C, so that it is brought up against the proximal part 6a.
  • the operation of folding of the flange 6 does not subject the sealing areas 60 to deformation, and, once completed, causes these areas to be located in a position corresponding to the distal part 6b (see Figures 1A and 15 to 23 ).
  • a cutting operation is provided to reduce the flange 6 to the desired width.
  • the wrapping obtained by the sealing operation is transferred from the support 14 to the support 12.
  • a movement of the supports 12 and 14 is carried out comprising in succession i) turning over the support 12 through 180° onto the support 14 ( Figure 11 ), ii) turning over through 180° the ensemble formed by the supports 12 and 14 coupled together ( Figure 12 ), in such a way that the product and the wrapping will pass from a condition where they are carried by the support 14 to a condition where they are carried by the support 12, and finally iii) removing the support 14 from the support 12 ( Figure 13 ).
  • the process then envisages an operation of cutting of the flange 6, aimed at obtaining the desired width of the above flange.
  • This cutting operation is preferably carried out causing, simultaneously with cutting, folding of a distal portion of the flange in a condition set at an angle, preferably orthogonal, with respect to the remaining proximal portion, so as to identify already in this step the aforesaid proximal and distal parts 6a and 6b that will come to form the folded flange in the next process step.
  • the above operation can be carried out by means of a device of the type illustrated in Figure 14 , which cooperates with the support 12, provided with the annular groove 24.
  • This cutting device comprises a vertically mobile support 26, associated to which are an annular cutting or dinking member 28 and pressure means 30, 32, preferably elastically constrained to the support 26, which surround internally and externally the annular cutting member 28.
  • the cutting device is positioned with the pressure means 30, 32 in contact with the flange 6, and with the cutting member 28 designed to penetrate into the groove 24.
  • the cutting end 28a of the cutting member 28 is able to penetrate into the groove 24 at a slight radial distance from the radially internal wall 24a of the groove 24, this distance being sized so as to be able to receive the folded flange part.
  • the pressure means 30, 32 constrain the flange 6, and lowering of the cutting member inside the groove 24 causes, simultaneously with cutting of the peripheral portions of the flange, folding downwards of the distal portion 6b with respect to the proximal portion 6a.
  • the offcuts, designated as a whole by 13 can be removed after the cutting operation, for example by suction in a subsequent process step.
  • the process preferably contemplates an operation of turning the wrapping material over through 180°, so as to position the folded flange parts upwards.
  • This operation can for example be carried out according to the operating steps of Figures 16, 17, 18 , and 19 , which comprise turning the support 14 over onto the support 12 to obtain the configuration of Figure 17 , in which the wrapping material is closed between the supports 12 and 14, turning the two associated supports 12, 14 over through 180° ( Figure 18 ), and subsequently opening the top support 14 to obtain the configuration of Figure 19 .
  • the process described herein envisages use of the crimping device described in the European patent No. EP2366631 .
  • This device may constitute a station that operates in line within a packaging plant, or else may constitute a stand-alone device to which the wrappers to be treated can be supplied by the line of the plant.
  • the device in question may be provided for cooperating directly with one of the supports 12 or 14 described previously, or else, as an alternative, may comprise its own means for supporting the wrapping material, which, like the supports 12 and 14, in general comprise a seat designed to support one of the two shaped parts 4a or 2a of the wrapping, and a substantially plane surface, which surrounds this seat and is designed to support the flange 6.
  • the device in question comprises crimping means provided for bringing about folding and/or clinching of the distal part 6b with respect to the article P, starting from a configuration of the type illustrated in Figure 20 , in which this part is already folded in an angled position, generally practically orthogonal to the surface 22 of the support 14.
  • the aforesaid crimping means comprise a crimping tool, designated by 36, which may be a body in the form of a plate provided with an opening 38 ( Figure 23 ), having a perimetral profile 40 homologous and enlarged with respect to the perimetral profile defined by the end of the flange 6.
  • the crimping tool 36 may thus be positioned in contact with the surface 22 of the support 14, with the opening in a position surrounding at a distance the distal portion 6b, i.e., in the configuration of Figure 24 , in which the receiving portion 2a is visible, the perimetral profile defined by the distal portion 6b and the profile 40 of the opening 38 that is positioned at a practically uniform distance from the portions 6a, 6b.
  • the crimping tool is vertically mobile with respect to the supporting means between a raised position and a lowered position, in which it is practically in contact with the surface 22.
  • the crimping tool 36 is moreover mobile in a horizontal plane.
  • Motor means 42 (see Figure 20 ) are provided for actuating the crimping tool for its vertical and horizontal movement.
  • the motor means 42 are provided for bringing consecutive or non-consecutive stretches of the profile 40 of the opening 38 into contact with a homologous stretch of the profile defined by the distal portion 6b previously folded. This operation can be carried out in the position in which the bottom end of the crimping tool is in contact with the surface 22 and is useful also for achieving, if need be, a correct positioning of the distal portion 6b in the position orthogonal to the surface 22 ( Figure 20 ).
  • the crimping tool is subjected to a vertical movement for a distance d greater than the thickness of the flange 6 and such that the bottom end of the profile 40 and of the opening 38 may still interfere, following upon a horizontal displacement, with the top end of the distal portion 6b ( Figure 21 ).
  • the crimping tool 36 is subjected to a horizontal movement of approach to the body of the article P in such a way as to cause further folding inwards of the distal portion 6b ( Figure 22 ) over the proximal portion 6a.
  • the crimping tool 36 is then subjected to a vertical movement of approach to the surface 22 of the support 14, in order to cause clinching ( Figure 23 ).
  • the aforesaid operations i.e., the operations of Figures 20 , 21, and 22 and optionally also the operations of Figure 23 (and clinching operations) are carried out for further consecutive or non-consecutive stretches of the profile of the flange. For example, when the article has a generally quadrangular profile, the aforesaid operations are carried out for each side defining the profile.
  • the crimping tool is operated according to a translational movement in two mutually orthogonal directions.
  • the crimping tool can alternatively be pre-arranged for a rotary and eccentric movement in the horizontal plane so as to reach one after another consecutive or non-consecutive stretches of the profile 40 of the opening 38 in contact with the corresponding portions of the flange 6.
  • the final clinching operation is optional.
  • the clinching operation (where necessary) can be carried out in a subsequent stage with an auxiliary tool 36b ( Figure 23 ), vertically mobile under the action of motor means 42a, and provided with an opening the internal profile of which substantially corresponds to the profile formed by the folded distal part 6b (i.e., by the folding line "s").
  • the aforesaid auxiliary tool 36b can be operated in a vertical movement until it comes into contact with the flange folded on itself, so as to carry out clinching all along its contour, in a single operation.
  • the crimping device described makes it possible to operate on articles of different shapes, by simply modifying the profile 40 of the opening or openings 38.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Packages (AREA)
  • Basic Packing Technique (AREA)
  • Packaging Frangible Articles (AREA)
  • Package Closures (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

Claims (13)

  1. Procédé pour fabriquer un emballage pour un produit alimentaire, en particulier un produit de confiserie, comprenant les étapes consistant à :
    - fournir une première feuille (2) de matériau d'enveloppement, qui présente une première partie pour recevoir ledit produit (2a) et une première partie périphérique (2b) entourant ladite première partie réceptrice ;
    - fournir une deuxième feuille (4) de matériau d'enveloppement, qui présente une deuxième partie pour recevoir ledit produit (4a) et une deuxième partie périphérique (4b) entourant ladite deuxième partie réceptrice ;
    - placer ledit produit (P) sur ladite première partie réceptrice ou ladite deuxième partie réceptrice ;
    - accoupler ladite première feuille (2) à ladite deuxième feuille (4) de manière que lesdites première et deuxième parties réceptrices (2a, 4a) définissent conjointement une cavité fermée (C) dans laquelle ledit produit est logé et de manière que lesdites première et deuxième parties périphériques (2b, 4b) soient placées en contact l'une avec l'autre afin de former un rebord (6) entourant ladite cavité (C) ; et
    - plier ledit rebord (6) le long d'une ligne de pliage (« s ») de manière à définir une partie rebord proximale (6a) et une partie rebord distale (6b) raccordée à ladite partie proximale le long de ladite ligne de pliage, ladite partie distale étant repliée vers ladite cavité, contre ladite partie proximale, le long de ladite ligne de pliage,
    ledit procédé étant caractérisé en ce qu'il envisage la fourniture d'une pluralité de zones de soudage (60) sur ledit rebord, qui sont distinctes et séparées les unes des autres, et sont conçues pour maintenir l'une avec l'autre ladite première feuille et ladite deuxième feuille (2, 4), lesdites zones de soudage étant situées au moins à une distance minimale prédéterminée (H) desdites première et/ou deuxième parties réceptrices, et
    ladite distance minimale étant telle que, après ladite étape de pliage, lesdites zones de soudage (60) se retrouvent toutes situées dans ladite partie distale (6b) dudit rebord plié (6), et ne sont pas traversées par ladite ligne de pliage (« s »).
  2. Procédé selon la revendication 1, dans lequel ladite distance est supérieure ou égale à la valeur de la largeur de ladite partie proximale (6b) dudit rebord plié.
  3. Procédé selon l'une quelconque des revendications précédentes, dans lequel lesdites zones de soudage (60) sont agencées successivement le long d'un passage fermé (T) qui entoure lesdites première et deuxième parties réceptrices (2a, 4a).
  4. Procédé selon l'une quelconque des revendications précédentes, dans lequel chaque zone de soudage (60) comporte, dans une direction sensiblement orthogonale à l'étendue correspondante dudit passage fermé (T), une dimension qui est inférieure ou égale à la largeur de ladite partie distale (6b) dudit rebord plié (6).
  5. Procédé selon l'une quelconque des revendications précédentes, dans lequel ladite étape de formation desdites zones de soudage (60) envisage les étapes suivantes consistant à :
    - prévoir un moyen de soudage (54) configuré pour presser l'une contre l'autre, et chauffer, lesdites première et deuxième parties périphériques (2b, 4b) afin d'obtenir ladite zone de soudage (60) ;
    - placer ledit moyen de soudage (54) sur lesdites première et deuxième parties périphériques (2b, 4b) afin d'obtenir un espace entre ledit moyen de soudage et lesdites première et/ou deuxième parties réceptrices ;
    - prévoir, dans ledit espace, un moyen (56) conçu pour protéger le produit (P) de la chaleur produite par ledit moyen de soudage (54) ; et
    - obtenir, par le biais dudit moyen de soudage, ladite pluralité de zones de soudage (60).
  6. Procédé selon la revendication 5, dans lequel ledit moyen conçu pour protéger ledit produit comprend un corps de refroidissement (56).
  7. Procédé selon l'une quelconque des revendications précédentes, dans lequel ladite étape de fourniture desdites première et/ou deuxième feuilles de matériau d'enveloppement (2, 4) comprend l'étape de formation desdites première et/ou deuxième parties réceptrices (2a, 4a) sous la forme de la surface externe de la partie correspondante dudit produit (P).
  8. Emballage pour produit alimentaire, en particulier produit de confiserie, comprenant :
    - une première feuille (2) de matériau d'enveloppement, qui présente une première partie destinée à recevoir ledit produit (2a) et une première partie périphérique (2b) entourant ladite première partie réceptrice ; et
    - une deuxième feuille (4) de matériau d'enveloppement, qui présente une deuxième partie destinée à recevoir ledit produit (4a) et une deuxième partie périphérique (4b) entourant ladite deuxième partie réceptrice ;
    lesdites première et deuxième feuilles (2, 4) étant accouplées de manière que lesdites première et deuxième parties (2a, 4a) destinées à recevoir ledit produit définissent conjointement une cavité fermée (C) dans laquelle ledit produit (P) est logé, et lesdites première et deuxième parties périphériques (2b, 4b) sont en contact l'une avec l'autre pour former un rebord (6) entourant ladite cavité (C) ; et
    ledit rebord (6) étant replié sur lui-même le long d'une ligne de pliage (« s ») définissant une partie rebord proximale (6a) et une partie rebord distale (6b) raccordée à ladite partie proximale le long de ladite ligne de pliage, ladite partie distale étant repliée (6b) vers ladite cavité (C) contre ladite partie proximale (6a), le long de ladite ligne de pliage,
    ledit emballage étant caractérisé en ce que ledit rebord (6) comprend une pluralité de zones de soudage (60), qui sont distinctes et séparées les unes des autres, et qui sont conçues pour maintenir l'une avec l'autre lesdites première et deuxième feuilles (2, 4), et lesdites zones de soudage (60) étant toutes situées dans ladite partie distale (6b) et n'étant pas traversées par ladite ligne de pliage (« s »).
  9. Emballage selon la revendication 8, dans lequel lesdites zones de soudage (60) sont agencées successivement le long d'un passage fermé (T) qui entoure lesdites première et deuxième parties réceptrices (2a, 4a).
  10. Emballage selon la revendication 9, dans lequel chaque zone de soudage (60) comporte, dans une direction sensiblement orthogonale à l'étendue correspondante dudit passage fermé (T), une dimension qui est inférieure ou égale à la largeur de ladite partie distale (6b) dudit rebord plié (6).
  11. Dispositif pour mettre en oeuvre l'étape de soudage dans un procédé selon les revendications 1 à 7, comprenant :
    - des moyens de support (14), qui sont configurés pour supporter lesdites première et deuxième feuilles (2, 4) accouplées l'une avec l'autre et identifier un siège ou une zone (18) sur lequel/laquelle ladite première partie réceptrice (2a) ou ladite deuxième partie réceptrice (4a) doivent être placées, et une surface de contraste (22, 44) sur laquelle ledit rebord (6) formé par lesdites première et deuxième parties périphériques (2b, 4b) en contact l'une avec l'autre doit être placé ; et
    - un moyen de soudage, comprenant un élément de pression (54), qui comporte au moins une section de chauffage (54a), et un moyen pour actionner ledit élément de pression (54) dans une position opérante, dans laquelle ladite section de chauffage (54a) presse ledit rebord contre ladite surface de contraste (22) afin de souder lesdites parties périphériques (2b, 4b) l'une à l'autre,
    ledit dispositif étant caractérisé en ce que ledit élément comporte une série de sections de chauffage (54a), qui sont distinctes et séparées les unes des autres, et qui sont agencées successivement le long d'un passage fermé dont la forme et/ou la longueur sont telles que, dans ladite position opérante, lesdites sections de chauffage (54a) entourent ledit siège ou ladite zone (18) à une distance donnée, et ledit dispositif comprenant un corps (56) pour protéger ledit produit (P), placé au sein dudit passage fermé, qui comporte une cavité (56a) conçue pour recevoir ladite deuxième partie réceptrice (2a) ou première partie réceptrice (4a), et un bord (56b) entourant ladite cavité (56a), qui a une largeur telle qu'il s'ajuste dans l'espace compris sur ladite distance entre lesdites sections de chauffage (54a) et ledit siège ou ladite zone (18) afin de recouvrir ladite première partie réceptrice (2a) ou ladite deuxième partie réceptrice (4a) pour les protéger desdites sections de chauffage (54a).
  12. Dispositif selon la revendication 11, dans lequel ledit corps comprend un ou plusieurs conduits agencés autour de ladite cavité (56a), et des moyens d'alimentation sont associés auxdits conduits pour garantir la circulation d'un fluide de refroidissement dans les conduits.
  13. Produit alimentaire emballé au moyen de l'emballage selon la revendication 8.
EP15732356.9A 2014-05-19 2015-05-12 Procédé de fabrication d'un emballage destiné à un produit alimentaire, en particulier un produit de confiserie Active EP3145814B1 (fr)

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GB2511559B (en) 2013-03-07 2018-11-14 Mondelez Uk R&D Ltd Improved Packaging and Method of Forming Packaging
GB2511560B (en) 2013-03-07 2018-11-14 Mondelez Uk R&D Ltd Improved Packaging and Method of Forming Packaging
DE102015101417B4 (de) * 2015-01-30 2016-09-01 Chocal Aluminiumverpackungen Gmbh Verfahren zum Herstellen einer Verpackung
CN107804500B (zh) * 2017-11-28 2024-05-07 王少波 一种充填对叠封合一体机
DE102018101864A1 (de) 2018-01-27 2019-08-01 Stampac Gmbh Verpackung und Verfahren zu deren Herstellung
WO2019115756A1 (fr) 2017-12-14 2019-06-20 Stampac Gmbh Dispositif d'emballage ainsi qu'emballage et procédé pour sa fabrication
LU101585B1 (en) * 2019-12-30 2021-06-30 Soremartec Sa Method for producing a shaped sheet of wrapping
CN113002844B (zh) * 2021-03-02 2023-04-07 内蒙古工业大学 农产品自动包装加工设备

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CN106414245A (zh) 2017-02-15
BR112016026388A2 (fr) 2017-08-15
BR112016026388B1 (pt) 2021-10-13
RU2680441C2 (ru) 2019-02-21
PL3145814T3 (pl) 2019-06-28
EP3145814A1 (fr) 2017-03-29
CA2948766A1 (fr) 2015-11-26
WO2015177683A1 (fr) 2015-11-26
MX2016014959A (es) 2017-03-31
TR201904421T4 (tr) 2019-05-21
CN106414245B (zh) 2019-12-03
CA2948766C (fr) 2023-01-17
RU2016149491A3 (fr) 2018-08-08
RU2016149491A (ru) 2018-06-20

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