EP0387171A1 - Method for producing a tubular packing body, packing made by this method and device for this method - Google Patents

Method for producing a tubular packing body, packing made by this method and device for this method Download PDF

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Publication number
EP0387171A1
EP0387171A1 EP90440022A EP90440022A EP0387171A1 EP 0387171 A1 EP0387171 A1 EP 0387171A1 EP 90440022 A EP90440022 A EP 90440022A EP 90440022 A EP90440022 A EP 90440022A EP 0387171 A1 EP0387171 A1 EP 0387171A1
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EP
European Patent Office
Prior art keywords
layer
packaging
shaping
place
parts
Prior art date
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Granted
Application number
EP90440022A
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German (de)
French (fr)
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EP0387171B1 (en
Inventor
Jean-Marie Eberle
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Individual
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Individual
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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
    • B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
    • B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/001—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs made from laminated webs, e.g. including laminating the webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/40—Construction of rigid or semi-rigid containers lined or internally reinforced
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms

Definitions

  • the present invention relates to the field of packaging, in particular tubular packaging, and relates to a method of manufacturing a body of a tubular packaging comprising at least two superposed layers of a material such as paper, cardboard, metal foil. , synthetic material, or any other material, a packaging thus obtained and a device for implementing this process.
  • a material such as paper, cardboard, metal foil. , synthetic material, or any other material
  • the existing packaging of the box, container, barrel, barrel type is all composed of a tubular body, of round, polygonal section, or any other sections, of a cover and of a bottom.
  • the structure of the tubular body, produced by spiral, straight, convolute or other winding, is generally as follows: - an internal complex, compatible with the product to be packaged.
  • This complex can have two or more layers.
  • the layer having the barrier properties ensuring a perfect seal is composed of an aluminum film. It can also be made of any other film having the same barrier properties and the same low physical resistance as aluminum.
  • This layer is as thin as possible, in order to minimize the cost of the packaging to be produced.
  • an optimal seal is obtained with a thickness of the aluminum layer of the order of 9 to 18 ⁇ .
  • This layer of aluminum is often covered, on each side, with a layer of a different material, for example on one side of paper and on the other of a film of synthetic material, or of a varnish.
  • a layer of a different material for example on one side of paper and on the other of a film of synthetic material, or of a varnish.
  • these layers are in cardboard, that is to say a grammage greater than about 225g / m2.
  • the number of layers depends, of course, on the desired rigidity, a barrel of washing powder requiring a rigidity much higher than a package of cookies, for example.
  • an outer layer or complex printed or not. It can be a single layer, for example a label printed with the product's trade name or other indications. It could also be a complex guaranteeing a perfect seal from the outside to the inside, in order to protect the different layers of cardboard from any damage by an external liquid.
  • connection of these different layers is ensured by sealing or gluing.
  • the bottoms or covers of these packages are composed either of a completely different structure from the body, or of a structure equivalent to that of the body.
  • they may advantageously be composed, from the inside of the packaging towards the outside, by a complex identical to that internal to the body and in contact with the product to be packaged, by one or more sheets of a material.
  • more rigid than the complex such as corrugated paper, cardboard, wood, metal, synthetic material, expanded polystyrene or any other material, the number of sheets to be applied being a function of the rigidity of the bottom or of the cover the packaging to be obtained, and optionally by a layer or an external complex, whether or not printed.
  • Such a structure is described in French patent application No. 8701510.
  • the bodies of tubular packaging are normally manufactured in the following manner: the different strips are unwound on a reel, the width of each strip corresponding to the width of the profile to be produced, the width of each is increased next strip of the thickness of the previous strip, each strip is shifted laterally, the strips are assembled together to form the profile, the profile is folded so as to first form an open U, then a closed U , then an O, the joints, combined with the offset of the strips, thus also being offset, then the profile is dried and finally the cut is made, generally by means of circular knives guided by a format cam, profile thus obtained in different sections, the length of which corresponds to that desired of the packaging body, and the bodies thus obtained are removed.
  • a format cam profile thus obtained in different sections, the length of which corresponds to that desired of the packaging body, and the bodies thus obtained are removed.
  • the packaging body obtained by application of such a method has the major characteristic of being provided with a weakening zone at the location of the various overlaps of the strips. It follows that the packaging body is not statically balanced. This static imbalance leads to various drawbacks, both at the level of the manufacturing process and at the level of the packaging body itself.
  • the static imbalance leads to difficulties in positioning and crimping the bottom and the cover.
  • the interior complex is very difficult to set up by heat sealing, due to the overlap of the different strips, the latter resulting in particular in a lack of space for the heat sealing tool; therefore either the production rates are slowed down, or the internal complex is dispensed with, which of course greatly affects the sealing of the packaging body.
  • British patent application GB-A-2 000 105 discloses a multi-layer packaging box, as well as its manufacturing process, said box having, on the one hand, an internal layer formed by strips. juxtaposed, but not contiguous, and, on the other hand, lines of weakness along the edges of the tube constituting the body of the box, which results in poor sealing of said box, as well as poor structural balancing , thus causing the existence of weakened generators along the body of the box thus obtained.
  • the general problem to be solved by the object of the present invention therefore consists in carrying out a manufacturing process making it possible to obtain a perfectly sealed, balanced packaging body, without causing deformations due to internal stresses, in particular by elimination of all weakened generators and all excess thicknesses due to overlapping of the bands.
  • This process should also allow a significant rate of production of the packaging bodies, an easy longitudinal heat-sealing of the com interior plex as well as an equally easy installation of funds and covers.
  • the cutting should be facilitated, eliminating any delicate adjustment and any abundant formation of dust, and be carried out in a clean and precise manner, whatever the section of the packaging bodies.
  • this general problem is solved in that it relates to a method of manufacturing a body of a tubular package comprising at least two superimposed layers of a material such as paper, cardboard, metal sheet, synthetic material, or any other material, characterized in that it consists in unrolling at least two strips intended to form the constituent parts of the first layer of the body to be produced, in shaping and in place in such a way that they are joined, without overlapping, the sum of the width of each strip corresponding to the perimeter of a packaging body, then to unroll at least two strips intended to form the constituent parts of the second layer of the body to be produced, to shape and place by gluing or heat sealing on the first layer in such a way that they are also contiguous without overlapping, but the joints of the bands forming the constituent parts of the second layer being substantially offset with respect to the joints of the bands forming the constituent parts of the first layer, the sum of the width of each band forming the second layer also corresponding to the perimeter of a packaging body, to be continued , where appropriate,
  • this process makes it possible to obtain a package, the body of which comprises at least two superimposed layers of a material such as paper, cardboard, metal foil, synthetic material or any other material, packaging characterized in that each layer is composed of at least two parts, joined without overlapping, the joints of a layer being substantially offset with respect to the joints of the lower and / or upper layer.
  • a material such as paper, cardboard, metal foil, synthetic material or any other material
  • the invention also relates to a device for implementing the method, characterized in that it is mainly constituted by a machine for continuously forming the body, connected to at least one reel, if necessary glueer (s ), one in number per part constituting each layer of the packaging body, said forming machine comprising a mandrel of the desired shape of the packaging body and shaping stations and in place of each layer around the mandrel by means of rollers or forming pads, rollers driving the layers thus formed towards a cutter comprising different cutting stations, their number being a function of the desired length of the packaging body and each comprising four blades arranged in pairs in opposition one in relation to the other.
  • glueer glueer
  • the manufacturing process is characterized in that it consists in unwinding at least two strips intended to form the parts 2, 3 constituting the first layer of the body 1 to be produced, to shape them and place in such a way that they are contiguous, without overlapping, the sum of the width of each strip corresponding to the perimeter of a packaging body 1, then to unroll at least two strips intended to form the constituent parts 4, 5 of the second layer of the body 1 to be produced, to shape them and put them in place by gluing or heat-sealing on the first layer so that they are also contiguous without overlapping, but the seals 7 of the bands forming the parts 4, 5 constituting the second layer being substantially offset with respect to the joints 6 of the bands forming the parts 2, 3 constituting the first layer, the sum of the width of each band forming the second c ouche also corresponding to the perimeter of a packaging body 1, to continue, if necessary, these operations as a function of the number of layers provided to form the packaging body 1, the joints of the bands 6,7 of each possible layer additional
  • the manufacturing process consists, prior to the unwinding of the strips intended to form the parts 2, 3 constituting the first layer of the body 1 to be produced, to unwind at least one strip 8 intended to constitute the sealed internal complex compatible with the product to be conditioned from the body 1 to be produced, then to shape it and put it in place by continuous heat sealing, the strips intended to form the parts 2, 3 then being glued or heat sealed on the internal complex 8 ( Figures 1A and 2A).
  • the sealed internal complex 8 can be constituted either by a band folded over on one side 9 and heat-sealed on each side 9, 10 (FIG. 6), or by two bands which are heat-sealed on each side 9, 10 (FIG. 5).
  • the manufacturing process consists exclusively, on the one hand, of unwinding at least one strip 8 intended to constitute a sealed complex compatible with the product to be packaged and, on the other hand, shaping and positioning the band or bands 8 by continuous heat sealing, no additional band being provided for producing the packaging body 1.
  • the manufacturing process consists, after the shaping and in place of the last layer of the body 1 to be produced before cutting, to unroll at least one strip 11 printed intended to constitute the external label, of the bodies 1 to be produced, then to shape it and put it in place by heat sealing or bonding on the last layer ( Figures 1D and 2D).
  • the manufacturing process consists, after the shaping and in place of the last layer of the body 1 to be produced, and before cutting, to unstack a label in format 11, then in form and in place by heat sealing or gluing on the last layer ( Figures 1D and 2D).
  • the cutting operation is triggered by a device for quantifying the movement of the packaging body 1 and consists, immediately after triggering, of moving, from its rest position, at least a cutting unit 19 parallel to the axis of travel of the body 1, then to rapidly synchronize its speed of movement with the speed of advance of said body 1, to cut, after the synchronization of the speeds, the body 1 by actuation knife holders 29 provided with knives 29 ′ and, finally, to quickly replace said cutting unit 19 in its rest position.
  • the subject of the invention is also a packaging obtained by application of this method, the body of which comprises at least two superimposed layers of a material such as paper, cardboard, metal foil, synthetic material or any other material, packaging characterized in that each layer is composed of at least two parts 2, 3 or 4, 5, contiguous without overlapping, the joints 6 or 7 of a layer being substantially offset with respect to the joints 7 or 6 of the lower and / or upper layer .
  • the body 1 will advantageously be composed of two superimposed layers, each consisting of exactly two parts 2, 3 or 4, 5, the width of cha that part 2 to 5 being exactly equal to half the perimeter of the packaging body 1, and the joints 7 of the two parts 4, 5 forming the second layer being offset by an angle of 90 ° relative to the joints 6 of the two parts 2, 3 forming the first layer.
  • the body 1 may, in addition, include an internal waterproof complex 8, compatible with the product to be packaged.
  • the body 1 consists only of two superimposed layers, namely, a sealed complex 8 compatible with the product to be packaged and an external label 11.
  • the invention also relates to a device for the implementation of this process, characterized in that it is mainly constituted by a forming machine 12 in continuous of the body 1 connected to at least one reel 13 if necessary glueer (s), one in number per part 2 to 5 constituting each layer of the body of the packaging, said forming machine 12 comprising a mandrel 14 of the form desired body 1 packaging and stations 15, 16 shaping and in place of each layer around the mandrel 14 via rollers 21 or 27 or pads 28 for forming, rollers 17 driving the layers thus formed towards a cutter 18.
  • glueer glueer
  • Each layer of the body 1 of the packaging corresponds to a station 15 or 16 for shaping and in place consisting of four rollers 21 or 27 or four pads 28, a station 15 for shaping and in place bands arriving from the reels 13 horizontally and preceding a station 16 shaping and placing strips arriving from the reels 13 vertically, therefore previously twisted, or vice versa ( Figures 7, 8 and 9 of the accompanying drawings).
  • the forming machine 12 has, in addition, a continuous heat sealing station 22, upstream of the shaping stations 15 and 16 and in place of the layers , consisting of four heat-sealing rollers 23, and connected to at least one reel 24 of the strip (s) intended to form the internal complex 8 of the body 1, the section of the mandrel 14 in line with the heat-sealing station 22 of said complex 8 on its banks being less than that at the right of the shaping stations and in place 15, 16, in order to facilitate said heat sealing.
  • the forming machine 12 has, downstream of the last shaping station and in place 16, and upstream of the drive rollers 17 of the layers formed towards the cutter 18, a station 25 for positioning and in the form of labels 11 (see FIGS. 3, 4 and 10).
  • the station 25 for placing labels 11 is connected either to a reel 26, if necessary a glue dispenser, of the strip intended to form said labels, or to a feeder previously unstacking the labels 11 one after the other.
  • the cutter 18 comprises one or more cutting units 19, their number being a function of the desired length of the packaging body 1 and each comprising several knives 29 'arranged in opposition, two by two, one in relation to the other.
  • each cutting unit 19 is constituted, on the one hand, by one or more knife holders 29 provided with knives 29 ′ interchangeable with one or more blades 20, according to the profile of the body 1 to be cut, said knife holders 29 being slidably mounted on disks positive guides 30, and, on the other hand, by one or more actuating devices 31 of the knife holders 29, two by two, in the direction of the body 1 moving on the mandrel 14.
  • the actuating device or devices 31 are advantageously in the form of toggle devices 32 connected to jacks 33 and further comprise means 34, 35 for adjusting the travel of the knife holders 29, the displacements of two opposite knife holders 29 being made simultaneous with using a connection means 36, for example, in the form of a bar.
  • the sectioning of the body 1 is carried out in one or more operations depending on the number of knife holders 29 to be actuated and takes place during a synchronous movement of the cutting unit 19 with said body 1, the movement of the cutting unit section 19 parallel to the body 1 being produced either mechanically by a connecting rod-crank device, or electromechanically by a ball screw motor provided with an electronic variator or even pneumatically by jack.
  • the cut made by the implementation of the device described above is clean and precise and allows the sectioning of body 1 of any section by simply changing the knives 29 ′, without requiring any additional adjustment.
  • the coarse and fine adjustments of the knife holder 29, using, respectively, adjustment means 34 and 35, allow the cutting of bodies 1 of the same section, but of different dimensions, with the same set of knives 29 ′.
  • this device it is therefore possible to carry out, for example, the manufacturing process as follows: - unwinding of a strip 8 intended to form the internal complex; - shaping and positioning of this complex 8 at the post of heat sealing 22 ( Figures 1A and 2A); the interior complex 8 composed of two strips of the same width (FIG. 5) or of a folded strip (FIG.

Abstract

The method is characterised in that it consists in unrolling at least two strips intended to form the component parts (2, 3) of the first layer of the body (1), in shaping them and placing them in such a way that they are joining without overlapping, then in unrolling at least two strips intended to form the component parts (4, 5) of the second layer of the body (1), in shaping them and in positioning them in such way that they are also joining without overlapping, these operations to be continued, if necessary, depending on the number of layers provided, the joints, (6, 7) of the strips of each possible additional layer being substantially offset with respect to those of the strips of the preceding layer, and finally in cutting off and removing the packing body (1). <IMAGE>

Description

La présente invention concerne le domaine des emballages, en particulier des emballages tubulaires, et a pour objet un procédé de fabrication d'un corps d'un emballage tubulaire comprenant au moins deux couches su­perposées en un matériau tel que papier, carton, feuille de métal, matière synthétique, ou toutes autres matiè­res, un emballage ainsi obtenu et un dispositif pour la mise en oeuvre de ce procédé.The present invention relates to the field of packaging, in particular tubular packaging, and relates to a method of manufacturing a body of a tubular packaging comprising at least two superposed layers of a material such as paper, cardboard, metal foil. , synthetic material, or any other material, a packaging thus obtained and a device for implementing this process.

Les emballages existants du type boîtes, con­teneurs, barils, fûts, sont tous composés d'un corps tu­bulaire, de section ronde, polygonale, ou toutes autres sections, d'un couvercle et d'un fond. La structure du corps tubulaire, réalisé par enroulement spiralé, droit, convolute ou autres, est en général la suivante :
- un complexe interne, compatible avec le produit à con­ditionner. Ce complexe peut comporter deux couches ou plus. Très souvent, la couche présentant les propriétés barrières assurant une étanchéité parfaite est composée d'un film d'aluminium. Elle peut également être en tout autre film présentant les mêmes propriétés barrières et la même faible résistance physique que l'aluminium. Cet­te couche est d'une épaisseur aussi faible que possible, afin de réduire au maximum le coût de l'emballage à réa­liser. Habituellement, une étanchéité optimale est obte­nue avec une épaisseur de la couche d'aluminium de l'or­dre de 9 à 18 µ. Cette couche d'aluminium est souvent recouverte, de chaque côté, d'une couche d'un matériau différent, par exemple d'un côté de papier et de l'autre d'un film en matière synthétique, ou d'un vernis.
- une ou plusieurs couches d'un matériau plus rigide que le complexe interne. En général, ces couches sont en carton, c'est-à-dire d'un grammage supérieur à environ 225g/m². Le nombre de couches dépend, bien entendu, de la rigidité souhaitée, un baril de poudre à laver néces­sitant une rigidité bien supérieure à un emballage de biscuits, par exemple.
- une couche ou un complexe externe, imprimé ou non. Il peut s'agir d'une couche simple, par exemple une éti­quette imprimée de la dénomination commerciale du pro­duit ou d'autres indications. Il pourra également s'agir d'un complexe garantissant une étanchéité parfaite de l'extérieur vers l'intérieur, afin de protéger les différentes couches de carton d'une quelconque atteinte par un liquide extérieur.The existing packaging of the box, container, barrel, barrel type is all composed of a tubular body, of round, polygonal section, or any other sections, of a cover and of a bottom. The structure of the tubular body, produced by spiral, straight, convolute or other winding, is generally as follows:
- an internal complex, compatible with the product to be packaged. This complex can have two or more layers. Very often, the layer having the barrier properties ensuring a perfect seal is composed of an aluminum film. It can also be made of any other film having the same barrier properties and the same low physical resistance as aluminum. This layer is as thin as possible, in order to minimize the cost of the packaging to be produced. Usually, an optimal seal is obtained with a thickness of the aluminum layer of the order of 9 to 18 μ. This layer of aluminum is often covered, on each side, with a layer of a different material, for example on one side of paper and on the other of a film of synthetic material, or of a varnish.
- one or more layers of a more rigid material than the internal complex. In general, these layers are in cardboard, that is to say a grammage greater than about 225g / m². The number of layers depends, of course, on the desired rigidity, a barrel of washing powder requiring a rigidity much higher than a package of cookies, for example.
- an outer layer or complex, printed or not. It can be a single layer, for example a label printed with the product's trade name or other indications. It could also be a complex guaranteeing a perfect seal from the outside to the inside, in order to protect the different layers of cardboard from any damage by an external liquid.

La liaison de ces différentes couches est assurée par scellage ou collage.The connection of these different layers is ensured by sealing or gluing.

Quant aux fonds ou couvercles de ces emballa­ges, ils sont composés soit d'une structure totalement différente du corps, soit d'une structure équivalente à celle du corps. Dans ce dernier cas, ils pourront être avantageusement composés, de l'intérieur de l'emballage vers l'extérieur, par un complexe identique à celui in­terne au corps et en contact avec le produit à condi­tionner, par une ou plusieurs feuilles en un matériau plus rigide que le complexe, tel que du papier ondulé, du carton, du bois, du métal, une matière synthétique, du polystyrène expansé ou toutes autres matières, le nombre de feuilles à appliquer étant fonction de la rigidité du fond ou du couvercle de l'emballage à obte­nir, et éventuellement par une couche ou un complexe externe imprimé ou non. Une telle structure est décrite dans la demande de brevet français n° 8701510.As for the bottoms or covers of these packages, they are composed either of a completely different structure from the body, or of a structure equivalent to that of the body. In the latter case, they may advantageously be composed, from the inside of the packaging towards the outside, by a complex identical to that internal to the body and in contact with the product to be packaged, by one or more sheets of a material. more rigid than the complex, such as corrugated paper, cardboard, wood, metal, synthetic material, expanded polystyrene or any other material, the number of sheets to be applied being a function of the rigidity of the bottom or of the cover the packaging to be obtained, and optionally by a layer or an external complex, whether or not printed. Such a structure is described in French patent application No. 8701510.

Actuellement, les corps des emballages tubu­laires sont fabriqués normalement de la manière suivan­te : on déroule les différentes bandes en bobine, la largeur de chaque bande correspondant à la largeur du profilé à réaliser, on augmente la largeur de chaque bande suivante de l'épaisseur de la bande précédente, on décale latéralement chaque bande, on assemble les bandes entre elles pour former le profilé, on réalise un pliage du profilé de manière à former tout d'abord un U ouvert, puis un U fermé, puis un O, les jointures, combinées au décalage des bandes, étant ainsi également décalées, puis on réalise un séchage du profilé et enfin on réali­se la coupe, en général par l'intermédiaire de couteaux circulaires guidés par une came de format, du profilé ainsi obtenu en différents tronçons dont la longueur correspond à celle désirée du corps d'emballage, et on évacue les corps ainsi obtenus. Un tel procédé de fabri­cation est connu du brevet US 2256263.Currently, the bodies of tubular packaging are normally manufactured in the following manner: the different strips are unwound on a reel, the width of each strip corresponding to the width of the profile to be produced, the width of each is increased next strip of the thickness of the previous strip, each strip is shifted laterally, the strips are assembled together to form the profile, the profile is folded so as to first form an open U, then a closed U , then an O, the joints, combined with the offset of the strips, thus also being offset, then the profile is dried and finally the cut is made, generally by means of circular knives guided by a format cam, profile thus obtained in different sections, the length of which corresponds to that desired of the packaging body, and the bodies thus obtained are removed. Such a manufacturing process is known from US Patent 2,256,263.

Or, le corps d'emballage obtenu par applica­tion d'un tel procédé présente la caractéristique majeu­re d'être pourvu d'une zone d'affaiblissement à l'en­droit des différents recouvrements des bandes. Il s'en suit que le corps d'emballage n'est pas équilibré stati­quement. Ce déséquilibre statique entraîne différents inconvénients, tant au niveau du procédé de fabrication qu'au niveau du corps d'emballage lui-même.However, the packaging body obtained by application of such a method has the major characteristic of being provided with a weakening zone at the location of the various overlaps of the strips. It follows that the packaging body is not statically balanced. This static imbalance leads to various drawbacks, both at the level of the manufacturing process and at the level of the packaging body itself.

En effet, au niveau du procédé de fabrication, le déséquilibre statique entraîne des difficultés pour le positionnement et le sertissage du fond et du couver­cle. En outre, le complexe intérieur est très difficile à mettre en place par thermoscellage, du fait du chevau­chement des différentes bandes, ce dernier entraînant notamment un manque de place pour l'outil de thermoscel­lage ; de ce fait soit les cadences de fabrication sont ralenties, soit on renonce au complexe intérieur, ce qui nuit bien entendu grandement à l'étanchéité du corps d'emballage.In fact, at the level of the manufacturing process, the static imbalance leads to difficulties in positioning and crimping the bottom and the cover. In addition, the interior complex is very difficult to set up by heat sealing, due to the overlap of the different strips, the latter resulting in particular in a lack of space for the heat sealing tool; therefore either the production rates are slowed down, or the internal complex is dispensed with, which of course greatly affects the sealing of the packaging body.

D'autre part, au niveau du corps d'emballage lui-même, il se déforme sous contrainte, par exemple lorsque l'emballage final est disposé dans des conte­neurs pour le transport ou dans des rayonnages lors de la vente, ceci provenant du fait que les joints ne sont que légèrement décalés, la déformation la plus importan­te naissant, bien entendu, toujours au niveau du chevau­chement des différentes bandes et complexes.On the other hand, at the level of the packaging body itself, it deforms under stress, for example when the final packaging is placed in containers for transport or in shelving during the sale, this coming from the fact that the joints are only slightly offset, the most important deformation arising, of course, always at the level of the overlap of the different bands and complexes.

Par ailleurs, la coupe par couteaux circulai­res guidés par une came de format nécessite, d'une part, un réglage délicat du fait de l'usure importante des couteaux et, d'autre part, un changement de la came pour chaque format de tube à découper. De plus, il n'est pas possible de sectionner des tubes à angles vifs ou présentant une section de forme complexe.Furthermore, cutting by circular knives guided by a format cam requires, on the one hand, a delicate adjustment due to the significant wear of the knives and, on the other hand, a change of the cam for each tube format. to cut. In addition, it is not possible to cut tubes with sharp angles or having a section of complex shape.

La coupe par scies circulaires, quant à elle, ne permet pas de réaliser une coupe nette, sans bavures et précise, et produit une quantité importante de poussière.Cutting with circular saws does not allow a clean cut, without burrs and precise, and produces a large amount of dust.

Par ailleurs, on connaît de la demande de bre­vet britannique GB-A-2 000 105 une boîte d'emballage à plusieurs couches, ainsi que son procédé de fabrication, ladite boîte présentant, d'une part, une couche interne formée par des bandes juxtaposées, mais non jointives, et, d'autre part, des lignes d'affaiblissement le long des arêtes du tube constituant le corps de la boîte, d'où il résulte une mauvaise étanchéité de ladite boîte, ainsi qu'un mauvais équilibrage structurel, entraînant ainsi l'existence de génératrices fragilisées le long du corps de la boîte ainsi obtenu.Furthermore, British patent application GB-A-2 000 105 discloses a multi-layer packaging box, as well as its manufacturing process, said box having, on the one hand, an internal layer formed by strips. juxtaposed, but not contiguous, and, on the other hand, lines of weakness along the edges of the tube constituting the body of the box, which results in poor sealing of said box, as well as poor structural balancing , thus causing the existence of weakened generators along the body of the box thus obtained.

Le problème général à résoudre par l'objet de la présente invention consiste donc à réaliser un procé­dé de fabrication permettant l'obtention d'un corps d'emballage parfaitement étanche, équilibré, sans que ne naissent des déformations dues à des contraintes inter­nes, notamment par élimination de toutes génératrices fragilisées et de toutes surépaisseurs dues à un chevau­chement des bandes. Ce procédé devra par ailleurs auto­riser une cadence importante de fabrication des corps d'emballage, un thermoscellage longitudinal aisé du com­ plexe intérieur ainsi qu'une mise en place également ai­sée des fonds et des couvercles. Enfin, la coupe devra être facilitée, en éliminant tout réglage délicat et toute formation abondante de poussière, et être réalisée de manière nette et précise, quelle que soit la section des corps d'emballage.The general problem to be solved by the object of the present invention therefore consists in carrying out a manufacturing process making it possible to obtain a perfectly sealed, balanced packaging body, without causing deformations due to internal stresses, in particular by elimination of all weakened generators and all excess thicknesses due to overlapping of the bands. This process should also allow a significant rate of production of the packaging bodies, an easy longitudinal heat-sealing of the com interior plex as well as an equally easy installation of funds and covers. Finally, the cutting should be facilitated, eliminating any delicate adjustment and any abundant formation of dust, and be carried out in a clean and precise manner, whatever the section of the packaging bodies.

Selon la présente invention, ce problème géné­ral est résolu en ce qu'elle a pour objet un procédé de fabrication d'un corps d'un emballage tubulaire compre­nant au moins deux couches superposées en un matériau tel que papier, carton, feuille de métal, matière syn­thétique, ou toutes autres matières, caractérisé en ce qu'il consiste à dérouler au moins deux bandes destinées à former les parties constitutives de la première couche du corps à réaliser, à les mettre en forme et en place de telle manière qu'elles soient jointives, sans se re­couvrir, la somme de la largeur de chaque bande corres­pondant au périmètre d'un corps d'emballage, puis à dé­rouler au moins deux bandes destinées à former les par­ties constitutives de la seconde couche du corps à réa­liser, à les mettre en forme et en place par collage ou thermoscellage sur la première couche de telle manière qu'elles soient également jointives sans se recouvrir, mais les joints des bandes formant les parties constitu­tives de la seconde couche étant sensiblement décalés par rapport aux joints des bandes formant les parties constitutives de la première couche, la somme de la lar­geur de chaque bande formant la seconde couche corres­pondant également au périmètre d'un corps d'emballage, à poursuivre, le cas échéant, ces opérations en fonction du nombre de couches prévues pour former le corps d'em­ballage, les joints des bandes de chaque couche éven­tuelle supplémentaire étant sensiblement décalés par rapport à ceux des bandes de la couche précédente, et enfin à réaliser la coupe des différentes couches ainsi superposées en fonction de la longueur désirée du corps d'emballage, et à évacuer le corps d'emballage obtenus.According to the present invention, this general problem is solved in that it relates to a method of manufacturing a body of a tubular package comprising at least two superimposed layers of a material such as paper, cardboard, metal sheet, synthetic material, or any other material, characterized in that it consists in unrolling at least two strips intended to form the constituent parts of the first layer of the body to be produced, in shaping and in place in such a way that they are joined, without overlapping, the sum of the width of each strip corresponding to the perimeter of a packaging body, then to unroll at least two strips intended to form the constituent parts of the second layer of the body to be produced, to shape and place by gluing or heat sealing on the first layer in such a way that they are also contiguous without overlapping, but the joints of the bands forming the constituent parts of the second layer being substantially offset with respect to the joints of the bands forming the constituent parts of the first layer, the sum of the width of each band forming the second layer also corresponding to the perimeter of a packaging body, to be continued , where appropriate, these operations as a function of the number of layers provided to form the packaging body, the joints of the strips of each possible additional layer being substantially offset with respect to those of the strips of the previous layer, and finally to carry out the cutting of the different layers thus superimposed according to the desired length of the body packaging, and to evacuate the packaging body obtained.

En effet, ce procédé permet l'obtention d'un emballage dont le corps comprend au moins deux couches superposées en un matériau tel que papier, carton, feuille de métal, matière synthétique ou toutes autres matières, emballage caractérisé en ce que chaque couche est composée d'au moins deux parties, jointives sans se recouvrir, les joints d'une couche étant sensiblement décalés par rapport aux joints de la couche inférieure et/ou supérieure.In fact, this process makes it possible to obtain a package, the body of which comprises at least two superimposed layers of a material such as paper, cardboard, metal foil, synthetic material or any other material, packaging characterized in that each layer is composed of at least two parts, joined without overlapping, the joints of a layer being substantially offset with respect to the joints of the lower and / or upper layer.

Enfin, l'invention a également pour objet un dispositif pour la mise en oeuvre du procédé, caractéri­sé en ce qu'il est principalement constitué par une ma­chine de formage en continu du corps, reliée à au moins un dévidoir le cas échéant encolleur(s), au nombre de un par partie constituant chaque couche du corps de l'em­ballage, ladite machine de formage comportant un mandrin de la forme souhaitée du corps d'emballage et des postes de mise en forme et en place de chaque couche autour du mandrin par l'intermédiaire de galets ou patins de for­mage, des rouleaux entraînant les couches ainsi formées vers une coupeuse comportant différents postes de coupe, leur nombre étant fonction de la longueur souhaitée du corps d'emballage et chacun comportant quatre lames dis­posées par paire en opposition l'une par rapport à l'autre.Finally, the invention also relates to a device for implementing the method, characterized in that it is mainly constituted by a machine for continuously forming the body, connected to at least one reel, if necessary glueer (s ), one in number per part constituting each layer of the packaging body, said forming machine comprising a mandrel of the desired shape of the packaging body and shaping stations and in place of each layer around the mandrel by means of rollers or forming pads, rollers driving the layers thus formed towards a cutter comprising different cutting stations, their number being a function of the desired length of the packaging body and each comprising four blades arranged in pairs in opposition one in relation to the other.

L'invention sera mieux comprise grâce à la description ci-après, qui se rapporte à un mode de réa­lisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence aux dessins schématiques annexés, dans lesquels :

  • la figure 1 (figures 1A, 1B, 1C et 1D) repré­sente en plan et en coupe, les différentes étapes du procédé de fabrication d'un corps d'emballage de sec­tion circulaire, conforme à l'invention ;
  • la figure 2 (figures 2A, 2B, 2C et 2D) repré­ sente en plan et en coupe, les différentes étapes du procédé de fabrication d'un corps d'emballage de section rectangulaire, conforme à l'invention ;
  • la figure 3 représente une vue de face du dis­positif pour la mise en oeuvre du procédé conforme à l'invention ;
  • la figure 4 représente une vue en plan du dis­positif représenté à la figure 3 ;
  • la figure 5 représente une vue schématique à plus grande échelle et en coupe, de gauche, de la mise en forme et en place d'un complexe interne constitué par deux bandes, au poste de thermoscellage du dispositif conforme à l'invention ;
  • la figure 6 représente une vue schématique à plus grande échelle et en coupe, de gauche, de la mise en forme et en place d'un complexe interne constitué par une bande, au poste de thermoscellage du dispositif con­forme à l'invention ;
  • la figure 7 représente une vue schématique à plus grande échelle et en coupe, de gauche, des parties constitutives d'une couche d'un corps d'emballage de section rectangulaire, au poste de mise en forme et en place pourvu, selon une variante de réalisation, unique­ment de galets, du dispositif conforme à l'invention ;
  • la figure 8 représente une vue schématique à plus grande échelle et en coupe, de gauche, des parties constitutives d'une autre couche d'un corps d'emballage de section rectangulaire, au poste de mise en forme et en place pourvu, selon la même variante de réalisation, uniquement de galets, du dispositif conforme à l'inven­tion ;
  • la figure 9 (figures 9A, 9B et 9C) représente une vue schématique à une échelle différente et en cou­pe, de gauche, des parties constitutives d'une couche d'un corps d'emballage de section rectangulaire, au poste de mise en forme et en place pourvu, selon une autre variante de réalisation, de galets et de patins, du dispositif conforme à l'invention ;
  • la figure 10 représente une vue en plan du dispositif pour la mise en oeuvre du procédé conforme à l'invention, selon une variante de réalisation, et
  • la figure 11 représente une vue en élévation latérale d'une unité de coupe faisant partie du disposi­tif représenté à la figure 3.
The invention will be better understood from the description below, which relates to a preferred embodiment, given by way of nonlimiting example, and explained with reference to the appended schematic drawings, in which:
  • Figure 1 (Figures 1A, 1B, 1C and 1D) shows in plan and in section, the different steps of the manufacturing process of a packaging body of circular section, according to the invention;
  • Figure 2 (Figures 2A, 2B, 2C and 2D) represents feels in plan and in section, the different stages of the manufacturing process of a packaging body of rectangular section, in accordance with the invention;
  • FIG. 3 represents a front view of the device for implementing the method according to the invention;
  • Figure 4 shows a plan view of the device shown in Figure 3;
  • FIG. 5 represents a diagrammatic view on a larger scale and in section, from the left, of the shaping and installation of an internal complex constituted by two strips, at the heat-sealing station of the device according to the invention;
  • FIG. 6 represents a diagrammatic view on a larger scale and in section, from the left, of the shaping and installation of an internal complex constituted by a strip, at the heat-sealing station of the device according to the invention;
  • 7 shows a schematic view on a larger scale and in section, on the left, of the constituent parts of a layer of a packaging body of rectangular section, at the shaping station and in place provided, according to a variant production, solely of rollers, of the device according to the invention;
  • FIG. 8 represents a diagrammatic view on a larger scale and in section, from the left, of the constituent parts of another layer of a packaging body of rectangular section, at the shaping station and in place provided, according to the same variant embodiment, solely of rollers, of the device according to the invention;
  • FIG. 9 (FIGS. 9A, 9B and 9C) represents a schematic view on a different scale and in section, from the left, of the constituent parts of a layer of a packaging body of rectangular section, at the shaping station and in place provided, according to another alternative embodiment, rollers and pads, the device according to the invention;
  • FIG. 10 represents a plan view of the device for implementing the method according to the invention, according to an alternative embodiment, and
  • FIG. 11 represents a side elevation view of a cutting unit forming part of the device represented in FIG. 3.

Conformément à l'invention, le procédé de fa­brication est caractérisé en ce qu'il consiste à dérou­ler au moins deux bandes destinées à former les parties 2, 3 constitutives de la première couche du corps 1 a réaliser, à les mettre en forme et en place de telle manière qu'elles soient jointives, sans se recouvrir, la somme de la largeur de chaque bande correspondant au pé­rimètre d'un corps 1 d'emballage, puis à dérouler au moins deux bandes destinées à former les parties 4, 5 constitutives de la seconde couche du corps 1 à réali­ser, à les mettre en forme et en place par collage ou thermoscellage sur la première couche de telle manière qu'elles soient également jointives sans se recouvrir, mais les joints 7 des bandes formant les parties 4, 5 constitutives de la seconde couche étant sensiblement décalés par rapport aux joints 6 des bandes formant les parties 2, 3 constitutives de la première couche, la somme de la largeur de chaque bande formant la seconde couche correspondant également au périmètre d'un corps 1 d'emballage, à poursuivre, le cas échéant, ces opéra­tions en fonction du nombre de couches prévues pour for­mer le corps 1 d'emballage, les joints des bandes 6,7 de chaque couche éventuelle supplémentaire étant sensible­ment décalés par rapport à ceux des bandes de la couche précédente, préférentiellement de 90°, et enfin à réali­ser la coupe des différentes couches ainsi superposées en fonction de la longueur désirée du corps 1 d'emballa­ ge, et à évacuer le corps 1 d'emballage obtenus (voir figures 1B, 1C, 2B et 2C des dessins annexés). En outre, les joints des bandes 6, 7 sont avantageusement disposés suivant les médianes des faces latérales des corps 1 d'emballage.According to the invention, the manufacturing process is characterized in that it consists in unwinding at least two strips intended to form the parts 2, 3 constituting the first layer of the body 1 to be produced, to shape them and place in such a way that they are contiguous, without overlapping, the sum of the width of each strip corresponding to the perimeter of a packaging body 1, then to unroll at least two strips intended to form the constituent parts 4, 5 of the second layer of the body 1 to be produced, to shape them and put them in place by gluing or heat-sealing on the first layer so that they are also contiguous without overlapping, but the seals 7 of the bands forming the parts 4, 5 constituting the second layer being substantially offset with respect to the joints 6 of the bands forming the parts 2, 3 constituting the first layer, the sum of the width of each band forming the second c ouche also corresponding to the perimeter of a packaging body 1, to continue, if necessary, these operations as a function of the number of layers provided to form the packaging body 1, the joints of the bands 6,7 of each possible layer additional being substantially offset from those of the strips of the previous layer, preferably 90 °, and finally to make the cut of the different layers thus superimposed according to the desired length of the body 1 of packaging ge, and to evacuate the packaging body 1 obtained (see Figures 1B, 1C, 2B and 2C of the accompanying drawings). In addition, the joints of the strips 6, 7 are advantageously arranged along the medians of the lateral faces of the packaging body 1.

Selon une première variante de réalisation de l'invention, le procédé de fabrication consiste, préala­blement au déroulement des bandes destinées à former les parties 2, 3 constitutives de la première couche du corps 1 à réaliser, à dérouler au moins une bande 8 des­tinée à constituer le complexe interne étanche compati­ble avec le produit à conditionner du corps 1 à réali­ser, puis à la mettre en forme et en place par thermo­scellage en continu, les bandes destinées à former les parties 2, 3 étant par la suite collées ou thermoscel­lées sur le complexe interne 8 (figures 1A et 2A).According to a first embodiment of the invention, the manufacturing process consists, prior to the unwinding of the strips intended to form the parts 2, 3 constituting the first layer of the body 1 to be produced, to unwind at least one strip 8 intended to constitute the sealed internal complex compatible with the product to be conditioned from the body 1 to be produced, then to shape it and put it in place by continuous heat sealing, the strips intended to form the parts 2, 3 then being glued or heat sealed on the internal complex 8 (Figures 1A and 2A).

Le complexe interne 8 étanche peut être cons­titué soit par une bande repliée d'un côté 9 et thermo­scellée de chaque côté 9, 10 (figure 6), soit par deux bandes qui sont thermoscellées de chaque côté 9, 10 (fi­gure 5).The sealed internal complex 8 can be constituted either by a band folded over on one side 9 and heat-sealed on each side 9, 10 (FIG. 6), or by two bands which are heat-sealed on each side 9, 10 (FIG. 5).

Selon une deuxième variante de réalisation de l'invention, le procédé de fabrication consiste exclusi­vement, d'une part, à dérouler au moins une bande 8 des­tinée à constituer un complexe étanche compatible avec le produit à conditionner et, d'autre part, à mettre en forme et en place la ou les bandes 8 par thermoscellage en continu, aucune bande supplémentaire n'étant prévue pour la réalisation du corps 1 d'emballage.According to a second alternative embodiment of the invention, the manufacturing process consists exclusively, on the one hand, of unwinding at least one strip 8 intended to constitute a sealed complex compatible with the product to be packaged and, on the other hand, shaping and positioning the band or bands 8 by continuous heat sealing, no additional band being provided for producing the packaging body 1.

Selon un premier mode d'une troisième variante de réalisation de l'invention, le procédé de fabrication consiste, postérieurement à la mise en forme et en place de la dernière couche du corps 1 à réaliser préalable­ment à la coupe, à dérouler au moins une bande 11 impri­mée destinée à constituer l'étiquette externe, des corps 1 à réaliser, puis à la mettre en forme et en place par thermoscellage ou collage sur la dernière couche (figu­res 1D et 2D).According to a first embodiment of a third alternative embodiment of the invention, the manufacturing process consists, after the shaping and in place of the last layer of the body 1 to be produced before cutting, to unroll at least one strip 11 printed intended to constitute the external label, of the bodies 1 to be produced, then to shape it and put it in place by heat sealing or bonding on the last layer (Figures 1D and 2D).

Selon un second mode de la troisième variante de réalisation de l'invention, le procédé de fabrication consiste, postérieurement à la mise en forme et en place de la dernière couche du corps 1 à réaliser, et préala­blement à la coupe, à dépiler une étiquette en format 11, puis à la mettre en forme et en place par thermo­scellage ou collage sur la dernière couche (figures 1D et 2D).According to a second embodiment of the third embodiment of the invention, the manufacturing process consists, after the shaping and in place of the last layer of the body 1 to be produced, and before cutting, to unstack a label in format 11, then in form and in place by heat sealing or gluing on the last layer (Figures 1D and 2D).

Conformément à une caractéristique de l'inven­tion, l'opération de coupe est déclenchée par un dispo­sitif de quantification du défilement du corps 1 d'emballage et consiste, aussitôt après le déclenche­ment, à déplacer, à partir de sa position de repos, au moins une unité de coupe 19 parallèlement à l'axe de défilement du corps 1, puis à synchroniser rapidement sa vitesse de déplacement avec la vitesse d'avancement du­dit corps 1, à sectionner, après la synchronisation des vitesses, le corps 1 par l'actionnnement de porte-couteaux 29 munis de couteaux 29′ et, enfin, à replacer rapidement ladite unité de coupe 19 dans sa position de repos.According to a characteristic of the invention, the cutting operation is triggered by a device for quantifying the movement of the packaging body 1 and consists, immediately after triggering, of moving, from its rest position, at least a cutting unit 19 parallel to the axis of travel of the body 1, then to rapidly synchronize its speed of movement with the speed of advance of said body 1, to cut, after the synchronization of the speeds, the body 1 by actuation knife holders 29 provided with knives 29 ′ and, finally, to quickly replace said cutting unit 19 in its rest position.

L'invention a également pour objet un emballa­ge obtenu par application de ce procédé, dont le corps comprend au moins deux couches superposées en un maté­riau tel que papier, carton, feuille de métal, matière synthétique ou toutes autres matières, emballage carac­térisé en ce que chaque couche est composée d'au moins deux parties 2, 3 ou 4, 5, jointives sans se recouvrir, les joints 6 ou 7 d'une couche étant sensiblement déca­lés par rapport aux joints 7 ou 6 de la couche inférieu­re et/ou supérieure.The subject of the invention is also a packaging obtained by application of this method, the body of which comprises at least two superimposed layers of a material such as paper, cardboard, metal foil, synthetic material or any other material, packaging characterized in that each layer is composed of at least two parts 2, 3 or 4, 5, contiguous without overlapping, the joints 6 or 7 of a layer being substantially offset with respect to the joints 7 or 6 of the lower and / or upper layer .

Le corps 1 sera avantageusement composé de deux couches superposées, chacune étant constituée par exactement deux parties 2, 3 ou 4, 5, la largeur de cha­ que partie 2 à 5 étant exactement égale à la moitié du périmètre du corps 1 d'emballage, et les joints 7 des deux parties 4, 5 formant la seconde couche étant déca­lés d'un angle de 90° par rapport aux joints 6 des deux parties 2, 3 formant la première couche. Le corps 1 peut, en outre, comporter un complexe interne étanche 8, compatible avec le produit à conditionner.The body 1 will advantageously be composed of two superimposed layers, each consisting of exactly two parts 2, 3 or 4, 5, the width of cha that part 2 to 5 being exactly equal to half the perimeter of the packaging body 1, and the joints 7 of the two parts 4, 5 forming the second layer being offset by an angle of 90 ° relative to the joints 6 of the two parts 2, 3 forming the first layer. The body 1 may, in addition, include an internal waterproof complex 8, compatible with the product to be packaged.

Selon une variante de réalisation de l'emballage conforme à l'invention, le corps 1 est cons­titué uniquement par deux couches superposées, à savoir, un complexe étanche 8 compatible avec le produit à con­ditionner et une étiquette externe 11.According to an alternative embodiment of the packaging in accordance with the invention, the body 1 consists only of two superimposed layers, namely, a sealed complex 8 compatible with the product to be packaged and an external label 11.

Enfin, et comme représenté aux figures 3, 4 et 10 des dessins annexés, l'invention a également pour objet un dispositif pour la mise en oeuvre de ce procé­dé, caractérisé en ce qu'il est principalement constitué par une machine de formage 12 en continu du corps 1 re­liée à au moins un dévidoir 13 le cas échéant encolleur(s), au nombre de un par partie 2 à 5 consti­tuant chaque couche du corps de l'emballage, ladite ma­chine de formage 12 comportant un mandrin 14 de la forme souhaitée du corps 1 d'emballage et des postes 15, 16 de mise en forme et en place de chaque couche autour du mandrin 14 par l'intermédiaire de galets 21 ou 27 ou patins 28 de formage, des rouleaux 17 entraînant les couches ainsi formées vers une coupeuse 18.Finally, and as shown in Figures 3, 4 and 10 of the accompanying drawings, the invention also relates to a device for the implementation of this process, characterized in that it is mainly constituted by a forming machine 12 in continuous of the body 1 connected to at least one reel 13 if necessary glueer (s), one in number per part 2 to 5 constituting each layer of the body of the packaging, said forming machine 12 comprising a mandrel 14 of the form desired body 1 packaging and stations 15, 16 shaping and in place of each layer around the mandrel 14 via rollers 21 or 27 or pads 28 for forming, rollers 17 driving the layers thus formed towards a cutter 18.

A chaque couche du corps 1 de l'emballage correspond un poste 15 ou 16 de mise en forme et en pla­ce constitué de quatre galets 21 ou 27 ou quatre patins 28, un poste 15 mettant en forme et en place des bandes arrivant des dévidoirs 13 horizontalement et précédant un poste 16 mettant en forme et en place des bandes arrivant des dévidoirs 13 verticalement, donc préalable­ment vrillées, ou inversement (figures 7, 8 et 9 des dessins annexés).Each layer of the body 1 of the packaging corresponds to a station 15 or 16 for shaping and in place consisting of four rollers 21 or 27 or four pads 28, a station 15 for shaping and in place bands arriving from the reels 13 horizontally and preceding a station 16 shaping and placing strips arriving from the reels 13 vertically, therefore previously twisted, or vice versa (Figures 7, 8 and 9 of the accompanying drawings).

Selon une autre caractéristique de l'inven­ tion, et comme représenté aux figures 3, 4 et 10 des dessins annexés, la machine de formage 12 présente, en outre, un poste de thermoscellage 22 en continu, en amont des postes 15 et 16 de mise en forme et en place des couches, constitué par quatre galets 23 de thermo­scellage, et relié à au moins un dévidoir 24 de la ou des bande(s) destinée(es) à former le complexe interne 8 du corps 1, la section du mandrin 14 au droit du poste de thermoscellage 22 dudit complexe 8 sur ses rives étant inférieure à celle au droit des postes de mise en forme et en place 15, 16, afin de faciliter ledit ther­moscellage.According to another characteristic of the invention tion, and as shown in Figures 3, 4 and 10 of the accompanying drawings, the forming machine 12 has, in addition, a continuous heat sealing station 22, upstream of the shaping stations 15 and 16 and in place of the layers , consisting of four heat-sealing rollers 23, and connected to at least one reel 24 of the strip (s) intended to form the internal complex 8 of the body 1, the section of the mandrel 14 in line with the heat-sealing station 22 of said complex 8 on its banks being less than that at the right of the shaping stations and in place 15, 16, in order to facilitate said heat sealing.

Conformément à une autre caractéristique de l'invention, la machine de formage 12 présente, en aval du dernier poste de mise en forme et en place 16, et en amont des rouleaux d'entraînement 17 des couches formées vers la coupeuse 18, un poste 25 de mise en place et en forme d'étiquettes 11 (voir figures 3, 4 et 10).According to another characteristic of the invention, the forming machine 12 has, downstream of the last shaping station and in place 16, and upstream of the drive rollers 17 of the layers formed towards the cutter 18, a station 25 for positioning and in the form of labels 11 (see FIGS. 3, 4 and 10).

Le poste 25 de mise en place d'étiquettes 11 est relié soit à un dévidoir 26, le cas échéant en­colleur, de la bande destinée à former lesdites étiquet­tes, soit à un margeur dépilant préalablement les éti­quettes 11 les unes après les autres.The station 25 for placing labels 11 is connected either to a reel 26, if necessary a glue dispenser, of the strip intended to form said labels, or to a feeder previously unstacking the labels 11 one after the other.

Comme le montrent également les figures 3, 4 et 10 des dessins annexés, la coupeuse 18 comporte une ou plusieurs unités de coupe 19, leur nombre étant fonc­tion de la longueur souhaitée du corps 1 d'emballage et chacune comportant plusieurs couteaux 29′ disposés en opposition, deux à deux, l'un par rapport à l'autre.As also shown in Figures 3, 4 and 10 of the accompanying drawings, the cutter 18 comprises one or more cutting units 19, their number being a function of the desired length of the packaging body 1 and each comprising several knives 29 'arranged in opposition, two by two, one in relation to the other.

Selon une caractéristique supplémentaire de l'invention, représentée à la figure 11 des dessins annexés, chaque unité de coupe 19 est constituée, d'une part, par un ou des porte-couteaux 29 pourvus de cou­teaux 29′ interchangeables à une ou plusieurs lames 20, suivant le profilé du corps 1 à sectionner, lesdits porte-couteaux 29 étant montés coulissants sur des dis­ positifs de guidage 30, et, d'autre part, par un ou des dispositifs d'actionnement 31 des porte-couteaux 29, deux par deux, en direction du corps 1 défilant sur le mandrin 14. Le ou les dispositifs d'actionnement 31 sont avantageusement sous la forme de dispositifs à genouillère 32 reliés à des vérins 33 et comportent, en outre, des moyens de réglage 34, 35 de la course des porte-couteaux 29, les déplacements de deux porte-couteaux 29 opposés étant rendus simultanés à l'aide d'un moyen de connexion 36, par exemple, sous la forme d'une barre.According to an additional characteristic of the invention, represented in FIG. 11 of the appended drawings, each cutting unit 19 is constituted, on the one hand, by one or more knife holders 29 provided with knives 29 ′ interchangeable with one or more blades 20, according to the profile of the body 1 to be cut, said knife holders 29 being slidably mounted on disks positive guides 30, and, on the other hand, by one or more actuating devices 31 of the knife holders 29, two by two, in the direction of the body 1 moving on the mandrel 14. The actuating device or devices 31 are advantageously in the form of toggle devices 32 connected to jacks 33 and further comprise means 34, 35 for adjusting the travel of the knife holders 29, the displacements of two opposite knife holders 29 being made simultaneous with using a connection means 36, for example, in the form of a bar.

Le sectionnement du corps 1 est effectué en une ou plusieurs opérations suivant le nombre de porte-couteaux 29 à actionner et se déroule lors d'un déplacement synchrone de l'unité de coupe 19 avec ledit corps 1, le déplacement de l'unité de coupe 19 parallè­lement au corps 1 étant réalisé soit mécaniquement par un dispositif de bielle-manivelle, soit électromécani­quement par un moteur-vis à bille muni d'un variateur électronique ou encore pneumatiquement par vérin.The sectioning of the body 1 is carried out in one or more operations depending on the number of knife holders 29 to be actuated and takes place during a synchronous movement of the cutting unit 19 with said body 1, the movement of the cutting unit section 19 parallel to the body 1 being produced either mechanically by a connecting rod-crank device, or electromechanically by a ball screw motor provided with an electronic variator or even pneumatically by jack.

La coupe réalisée par la mise en oeuvre du dispositif décrit ci-dessus est nette et précise et per­met le sectionnement de corps 1 de section quelconque par simple changement des couteaux 29′, en ne nécessi­tant aucun réglage supplémentaire. Les réglages gros­siers et fins des courses des porte-couteaux 29, à l'ai­de, respectivement, des moyens de réglage 34 et 35, au­torisent la coupe de corps 1 de même section, mais de dimensions différentes, avec le même jeu de couteaux 29′ .The cut made by the implementation of the device described above is clean and precise and allows the sectioning of body 1 of any section by simply changing the knives 29 ′, without requiring any additional adjustment. The coarse and fine adjustments of the knife holder 29, using, respectively, adjustment means 34 and 35, allow the cutting of bodies 1 of the same section, but of different dimensions, with the same set of knives 29 ′.

Grâce à ce dispositif, on peut donc réaliser, par exemple, le procédé de fabrication de la manière suivante :
- déroulage d'une bande 8 destinée à former le complexe interne ;
- mise en forme et en place de ce complexe 8 au poste de thermoscellage 22 (figures 1A et 2A) ; le complexe inté­rieur 8 composé de deux bandes de même largeur (figure 5) ou d'une bande repliée (figure 6) est déroulé et thermoscellé en continu au poste de thermoscellage 22 constitué par quatre galets 23, sur ses rives autour de la queue du mandrin de forme 14, puis tiré sur celui-ci par l'intermédiaire des bandes destinées à former les parties 2 à 5 ; grâce à la section du mandrin 14 au droit du poste de thermoscellage 22, inférieure à la section du reste du mandrin 14, le thermoscellage est grandement facilité, puisqu'il existe un espace impor­tant entre le complexe 8 et le mandrin 14 ;
- déroulage des deux bandes destinées à former les par­ties 2, 3 constitutives de la première couche ;
- mise en forme et en place de ces bandes (figures 1B et 2B) suivant deux U opposés autour du mandrin 14 ; cette opération peut s'effectuer, par exemple, grâce à quatre galets 21 verticaux, deux supérieurs et deux inférieurs, le poste 15 mettant en forme et en place des bandes arrivant des dévidoirs 13 horizontalement (figure 7) ; elle peut également s'effectuer, par exemple, grâce à deux galets presseurs 27 disposés avant quatre patins de forme 28, précédant eux-mêmes deux nouveax galets pres­seurs 27 ; si les deux premiers galets 27 sont horizon­taux, les deux derniers galets 27 sont verticaux (figure 9), ou inversement ;
- déroulage des deux bandes destinées à former les parties 4, 5 constitutives de la seconde couche ;
- mise en forme et en place de ces bandes (figures 1C et 2C) suivant deux U autour du mandrin 14, mais décalées de 90° par rapport à celles de la première couche ;
cette opération peut s'effectuer de la même manière que pour les premières bandes (voir par exemple figure 8 des dessins annexés, les bandes arrivant des dévidoirs 13 verticalement, dont préalablement vrillés, et les galets 21 étant disposés horizontalement) ;
- le cas échéant, poursuite de ces opérations si plus de deux couches sont prévues ;
- déroulage d'une bande 11 imprimée, destinée à consti­tuer l'étiquette externe ;
- mise en forme et en place de cette bande (figures 1D et 2D) au poste 25 de la machine de formage 12 ;
l'étiquette 11 est déroulée et encollée en continu, puis appliquée et formée autour de la dernière couche précé­demment réalisée, et tirée par celle-ci ; si l'étiquette 11 se présente non pas en bobine, mais en format, un margeur dépilera une étiquette 11 après l'autre ; elles seront alors encollées et plaquées sous le corps 1, puis formées autour ;
- coupage des différentes couches ainsi superposées aux différentes unités de coupe 19, ces dernières comportant chacune plusieurs couteaux 29′ disposés par paire en opposition l'un par rapport à l'autre ; il s'agit par conséquent d'une coupe "à la volée" ;
- évacuation des corps 1 d'emballage ainsi obtenus.Thanks to this device, it is therefore possible to carry out, for example, the manufacturing process as follows:
- unwinding of a strip 8 intended to form the internal complex;
- shaping and positioning of this complex 8 at the post of heat sealing 22 (Figures 1A and 2A); the interior complex 8 composed of two strips of the same width (FIG. 5) or of a folded strip (FIG. 6) is unrolled and heat-sealed continuously at the heat-sealing station 22 constituted by four rollers 23, on its banks around the tail of the form 14 mandrel, then pulled on it by means of the bands intended to form parts 2 to 5; thanks to the section of the mandrel 14 to the right of the heat sealing station 22, smaller than the section of the rest of the mandrel 14, the heat sealing is greatly facilitated, since there is a large space between the complex 8 and the mandrel 14;
- unwinding of the two strips intended to form the parts 2, 3 constituting the first layer;
- Shaping and positioning of these strips (Figures 1B and 2B) along two opposite U around the mandrel 14; this operation can be carried out, for example, by means of four vertical rollers 21, two upper and two lower, the station 15 shaping and positioning strips arriving from the reels 13 horizontally (FIG. 7); it can also be carried out, for example, by means of two pressure rollers 27 arranged before four shaped shoes 28, themselves preceding two new pressure rollers 27; if the first two rollers 27 are horizontal, the last two rollers 27 are vertical (Figure 9), or vice versa;
- unwinding of the two strips intended to form the parts 4, 5 constituting the second layer;
- Shaping and positioning of these strips (Figures 1C and 2C) along two U around the mandrel 14, but offset by 90 ° relative to those of the first layer;
this operation can be carried out in the same way as for the first bands (see for example FIG. 8 of the appended drawings, the bands arriving from the reels 13 vertically, including previously twisted, and the rollers 21 being arranged horizontally);
- if necessary, continuation of these operations if more than two layers are planned;
- unwinding of a printed strip 11, intended to constitute the external label;
- shaping and positioning of this strip (FIGS. 1D and 2D) at station 25 of the forming machine 12;
the label 11 is unrolled and glued continuously, then applied and formed around the last layer previously produced, and pulled by the latter; if the label 11 is not in reel, but in format, a feeder will unstack a label 11 after the other; they will then be glued and pressed under the body 1, then formed around;
- Cutting the different layers thus superimposed on the different cutting units 19, the latter each comprising several knives 29 ′ arranged in pairs in opposition to each other; it is therefore a cut "on the fly";
- Evacuation of the packaging body 1 thus obtained.

On obtient donc ainsi, grâce à ce procédé de fabrication, un corps 1 d'emballage parfaitement étanche et sans aucune génératrice particulièrement fragilisée, du fait principalement du décalage important des joints 6 et 7 les uns par rapport aux autres, ces joints étant en quelque sorte uniformément répartis sur tout le péri­mètre du corps 1 d'emballage.We thus obtain, thanks to this manufacturing process, a perfectly sealed packaging body 1 and without any particularly weakened generator, mainly due to the significant offset of the seals 6 and 7 relative to each other, these seals being in some so uniformly distributed over the entire perimeter of the packaging body 1.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sor­tir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiment described and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims (20)

1. Procédé de fabrication d'un corps d'un em­ballage tubulaire comprenant au moins deux couches su­perposées en un matériau tel que papier, carton, feuille de métal, matière synthétique, ou toutes autres matiè­res, caractérisé en ce qu'il consiste à dérouler au moins deux bandes destinées à former les parties (2, 3) constitutives de la première couche du corps (1) à réa­liser, à les mettre en forme et en place de telle maniè­re qu'elles soient jointives, sans se recouvrir, la som­me de la largeur de chaque bande correspondant au péri­mètre d'un corps (1) d'emballage, puis à dérouler au moins deux bandes destinées à former les parties (4, 5) constitutives de la seconde couche du corps (1) à réali­ser, à les mettre en forme et en place par collage ou thermoscellage sur la première couche de telle manière qu'elles soient également jointives sans se recouvrir, mais les joints (7) des bandes formant les parties (4, 5) constitutives de la seconde couche étant sensiblement décalés par rapport aux joints (6) des bandes formant les parties (2, 3) constitutives de la première couche, la somme de la largeur de chaque bande formant la secon­de couche correspondant également au périmètre d'un corps (1) d'emballage, à poursuivre, le cas échéant, ces opérations en fonction du nombre de couches prévues pour former le corps (1) d'emballage, les joints (6, 7) des bandes de chaque couche éventuelle supplémentaire étant sensiblement décalés par rapport à ceux des bandes de la couche précédente, et enfin à réaliser la coupe des différentes couches ainsi superposées en fonction de la longueur désirée du corps (1) d'emballage, et à évacuer le corps (1) d'emballage obtenu.1. A method of manufacturing a body of a tubular package comprising at least two superimposed layers of a material such as paper, cardboard, metal foil, synthetic material, or any other material, characterized in that it consists in unwinding at least two strips intended to form the parts (2, 3) constituting the first layer of the body (1) to be produced, to shape them and put them in place in such a way that they are contiguous, without overlapping, the sum the width of each strip corresponding to the perimeter of a packaging body (1), then to unroll at least two strips intended to form the parts (4, 5) constituting the second layer of the body (1) to be produced, to form them and put them in place by gluing or heat-sealing on the first layer so that they are also contiguous without overlapping, but the joints (7) of the bands forming the parts (4, 5) constituting the second layer being substantially offset from the joints (6) of the bands forming the parts (2, 3) constituting the first layer, the sum of the width of each band forming the second layer also corresponding to the perimeter of a body (1) d packaging, to continue, if necessary, these operations depending on the number of layers provided to form the packaging body (1), the joints (6, 7) of the strips of each possible additional layer being substantially offset from those of the strips of the previous layer, and finally to carry out the cutting of the different layers thus superimposed as a function of the desired length of the packaging body (1), and to evacuate the packaging body (1) obtained. 2. Procédé de fabrication selon la revendica­tion 1, caractérisé en ce qu'il consiste préalablement au déroulement des bandes destinées à former les parties (2, 3) constitutives de la première couche du corps (1) à réaliser, à dérouler au moins une bande (8) destinée à constituer le complexe interne étanche compatible avec le produit à conditionner, du corps (1) à réaliser, puis à la mettre en forme et en place par thermoscellage en continu, les bandes destinées à former les parties (2, 3) étant par la suite collées ou thermoscellées sur le complexe interne (8).2. Manufacturing method according to claim 1, characterized in that it consists beforehand during the unwinding of the bands intended to form the parts (2, 3) constituting the first layer of the body (1) to be produced, in unwinding at least one band (8) intended to constitute the sealed internal complex compatible with the product to be packaged, of the body (1) to be produced, then to shape it and put it in place by continuous heat sealing, the strips intended to form the parts (2, 3) then being glued or heat sealed on the internal complex (8). 3. Procédé de fabrication selon la revendica­tion 2, caractérisé en ce que le complexe interne (8) étanche est constitué soit par une bande repliée d'un côté (9) et thermoscellée de chaque côté (9, 10), soit par deux bandes qui sont thermoscellées de chaque côté (9, 10).3. The manufacturing method according to claim 2, characterized in that the sealed internal complex (8) is constituted either by a strip folded over on one side (9) and heat-sealed on each side (9, 10), or by two strips which are heat sealed on each side (9, 10). 4. Procédé de fabrication selon l'une quelcon­que des revendications 2 et 3, caractérisé en ce qu'il consiste exclusivement, d'une part, à dérouler au moins une bande (8) destinée à constituer un complexe étanche compatible avec le produit à conditionner et, d'autre part, à mettre en forme et en place la ou les bandes (8) par thermoscellage en continu, aucune bande supplémentaire n'étant prévue pour la réalisation du corps (1) d'emballage.4. Manufacturing process according to any one of claims 2 and 3, characterized in that it consists exclusively, on the one hand, of unwinding at least one strip (8) intended to constitute a sealed complex compatible with the product to conditioning and, on the other hand, shaping and positioning the strip (s) (8) by continuous heat sealing, no additional strip being provided for producing the packaging body (1). 5. Procédé de fabrication selon l'une quelcon­que des revendications 1 à 4, caractérisé en ce qu'il consiste, postérieurement à la mise en forme et en place de la dernière couche du corps (1) à réaliser, et préa­lablement à la coupe, à dérouler une bande (11) imprimée destinée à constituer l'étiquette externe du corps (1) à réaliser, puis à la mettre en forme et en place par thermoscellage ou collage sur la dernière couche.5. Manufacturing process according to any one of claims 1 to 4, characterized in that it consists, after the shaping and in place of the last layer of the body (1) to be produced, and before cutting , to unroll a printed strip (11) intended to constitute the external label of the body (1) to be produced, then to shape it and put it in place by heat sealing or gluing on the last layer. 6. Procédé de fabrication selon l'une quelcon­que des revendications 1 à 4, caractérisé en ce qu'il consiste, postérieurement à la mise en forme et en place de la dernière couche du corps (1) à réaliser, et préa­ lablement à la coupe, à dépiler une étiquette en format (11), puis à la mettre en forme et en place par thermo­scellage ou collage sur la dernière couche.6. Manufacturing method according to any one of claims 1 to 4, characterized in that it consists, after the shaping and in place of the last layer of the body (1) to be produced, and prea when cutting, unstacking a label in format (11), then shaping it and putting it in place by heat sealing or gluing on the last layer. 7. Procédé de fabrication selon la revendica­tion 1, caractérisé en ce que l'opération de coupe est déclenchée par un dispositif de quantification du défi­lement du corps (1) d'emballage et consiste, aussitôt après le déclenchement, à déplacer, à partir de sa posi­tion de repos, au moins une unité de coupe (19) parallè­lement à l'axe de défilement du corps (1), puis à syn­chroniser rapidement sa vitesse de déplacement avec la vitesse d'avancement dudit corps (1), à sectionner, après la synchronisation des vitesses, le corps (1) par l'actionnement de porte-couteaux (29) munis de couteaux (29′ ), et enfin à replacer rapidement ladite unité de coupe (19) dans sa position de repos.7. The manufacturing method according to claim 1, characterized in that the cutting operation is triggered by a device for quantifying the movement of the packaging body (1) and consists, immediately after triggering, in moving, from its rest position, at least one cutting unit (19) parallel to the axis of travel of the body (1), then to rapidly synchronize its speed of movement with the speed of advance of said body (1), to be cut, after synchronization of the speeds, the body (1) by actuating knife holders (29) provided with knives (29 ′), and finally to quickly replace said cutting unit (19) in its rest position. 8. Emballage obtenu par application du procédé selon l'une quelconque des revendications 1 à 3 et 5 à 7, dont le corps comprend au moins deux couches superpo­sées en un matériau tel que papier, carton, feuille de métal, matière synthétique ou toutes autres matières, emballage caractérisé en ce que chaque couche est compo­sée d'au moins deux parties (2, 3 ou 4, 5), jointives sans se recouvrir, les joints (6 ou 7) d'une couche étant sensiblement décalés par rapport aux joints (7 ou 6) de la couche inférieure et/ou supérieure.8. Packaging obtained by applying the method according to any one of claims 1 to 3 and 5 to 7, the body of which comprises at least two superimposed layers of a material such as paper, cardboard, metal foil, synthetic material or any other materials, packaging characterized in that each layer is composed of at least two parts (2, 3 or 4, 5), joined without overlapping, the joints (6 or 7) of a layer being substantially offset from the joints (7 or 6) of the lower and / or upper layer. 9. Emballage selon la revendication 8, carac­térisé en ce que le corps (1) est avantageusement compo­sé de deux couches superposées.9. Packaging according to claim 8, characterized in that the body (1) is advantageously composed of two superimposed layers. 10. Emballage selon l'une quelconque des re­vendications 8 et 9, caractérisé en ce que chaque couche est avantageusement constituée par exactement deux parties (2, 3 ou 4, 5).10. Packaging according to any one of claims 8 and 9, characterized in that each layer is advantageously constituted by exactly two parts (2, 3 or 4, 5). 11. Emballage selon la revendication 10, ca­ractérisé en ce que la largeur de chaque partie (2 à 5) est exactement égale à la moitié du périmètre du corps (1) d'emballage11. Packaging according to claim 10, characterized in that the width of each part (2 to 5) is exactly equal to half the perimeter of the body (1) packing 12. Emballage selon la revendication 11, ca­ractérisé en ce que les joints (7) des deux parties (4, 5) formant la seconde couche sont décalés d'un angle de 90° par rapport aux joints (6) des deux parties (2, 3) formant la première couche.12. Packaging according to claim 11, characterized in that the joints (7) of the two parts (4, 5) forming the second layer are offset by an angle of 90 ° relative to the joints (6) of the two parts (2 , 3) forming the first layer. 13. Emballage selon l'une quelconque des re­vendications 8 à 12, caractérisé en ce qu'il comporte, en outre, un complexe interne (8) étanche, compatible avec le produit à conditionner.13. Packaging according to any one of claims 8 to 12, characterized in that it further comprises an internal complex (8) sealed, compatible with the product to be packaged. 14. Emballage obtenu par application du procé­dé selon les revendications 4 à 7, dont le corps com­prend au moins deux couches superposées en un matériau tel que papier, carton, feuille de métal, matière syn­thétique ou toute autre matière, emballage caractérisé en ce que le corps (1) est constitué uniquement par deux couches superposées à savoir un complexe étanche (8) compatible avec le produit à conditionner et une étiquette externe (11).14. Packaging obtained by applying the method according to claims 4 to 7, the body of which comprises at least two superimposed layers of a material such as paper, cardboard, metal foil, synthetic material or any other material, packaging characterized in that the body (1) consists only of two superimposed layers, namely a waterproof complex (8) compatible with the product to be packaged and an external label (11). 15. Dispositif pour la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 7 pour la fabrication d'un emballage selon l'une quelcon­que des revendications 8 à 14, caractérisé en ce qu'il est constitué par une machine de formage (12) en continu du corps (1), reliée à au moins un dévidoir (13) le cas échéant encolleur(s), au nombre de un par partie (2 à 5) constituant chaque couche du corps de l'emballage, ladi­te machine de formage (12) comportant un mandrin (14) de la forme souhaitée du corps (1) d'emballage et des pos­tes (15, 16) de mise en forme et en place de chaque cou­che autour du mandrin (14) par l'intermédiaire de galets (21 ou 27) ou patins (28) de formage, des rouleaux (17) entraînant les couches ainsi formées vers une coupeuse (18), ladite machine de formage (12) présentant, en ou­tre, un poste de thermoscellage (22) en continu, en amont des postes (15 et 16) de mise en forme et en place des couches, constitué par quatre galets (23) de thermo­scellage, et relié à au moins un dévidoir (24), de la ou des bande(s) destinée(s) à former le complexe (8) du corps (1), la section du mandrin (14) au droit du poste de thermoscellage (22) dudit complexe (8) sur ses rives étant inférieure à celle au droit des postes de mise en forme et en place (15, 16), afin de faciliter ledit thermoscellage.15. Device for implementing the method according to any one of claims 1 to 7 for the manufacture of a packaging according to any one of claims 8 to 14, characterized in that it is constituted by a machine continuous forming (12) of the body (1), connected to at least one reel (13) if necessary, glueer (s), one in number per part (2 to 5) constituting each layer of the body of the packaging, said forming machine (12) comprising a mandrel (14) of the desired shape of the packaging body (1) and stations (15, 16) for shaping and placing each layer around the mandrel (14) by by means of rollers (21 or 27) or pads (28) of forming, rollers (17) driving the layers thus formed towards a cutter (18), said forming machine (12) having, in addition, a station for continuous heat sealing (22), upstream of the shaping stations (15 and 16) and in place layers, consisting of four heat-sealing rollers (23), and connected to at least one reel (24), of the strip (s) intended (s) to form the complex (8) of the body (1), the section of the mandrel (14) to the right of the heat sealing station (22) of said complex (8) on its banks being less than that to the right of the shaping stations and in place (15, 16), in order to facilitate said heat sealing. 16. Dispositif selon la revendication 15, ca­ractérisé en ce qu'à chaque couche du corps (1) de l'em­ballage correspond un poste (15 ou 16) de mise en forme et en place constitué de quatre galets (21 ou 27) ou quatre patins (28), un poste (15) mettant en forme et en place des bandes arrivant des dévidoirs (13) horizonta­lement et précédant un poste (16) mettant en forme et en place des bandes arrivant des dévidoirs (13) verticale­ment, donc préalablement vrillées, et inversement.16. Device according to claim 15, characterized in that to each layer of the body (1) of the packaging corresponds a station (15 or 16) for shaping and in place consisting of four rollers (21 or 27) or four skids (28), a station (15) shaping and positioning bands arriving from the reels (13) horizontally and preceding a station (16) shaping and installing bands arriving from the reels (13) vertically, therefore previously twisted, and vice versa. 17. Dispositif selon l'une quelconque des re­vendications 15 et 16, caractérisé en ce que la machine de formage (12) présente, en aval du dernier poste de mise en forme et en place (16) , et en amont des rou­leaux d'entraînement (17) des couches formées vers la coupeuse (18), un poste (25) de mise en place et en for­me d'étiquettes (11).17. Device according to any one of claims 15 and 16, characterized in that the forming machine (12) has, downstream of the last shaping station and in place (16), and upstream of the rollers drive (17) of the layers formed towards the cutter (18), a station (25) for positioning and in the form of labels (11). 18. Dispositif selon l'une quelconque des re­vendications 15 à 17, caractérisé en ce que la coupeuse (18) comporte une ou plusieurs unités de coupe (19), leur nombre étant fonction de la longueur souhaitée du corps (1) d'emballage et chacune comportant plusieurs couteaux (29′) disposés en opposition, deux à deux, l'un par rapport à l'autre.18. Device according to any one of claims 15 to 17, characterized in that the cutter (18) comprises one or more cutting units (19), their number being a function of the desired length of the packaging body (1) and each comprising several knives (29 ′) arranged in opposition, two by two, one with respect to the other. 19. Dispositif selon la revendication 18, ca­ractérisé en ce que chaque unité de coupe (19) est cons­tituée, d'une part, par un ou des porte-couteaux (29) pourvus de couteaux (29′) interchangeables à une ou plusieurs lames (20) suivant le profilé du corps (1) à sectionner, lesdits porte-couteaux (29) étant montés coulissant sur des dispositifs de guidage (30) et, d'au­tre part, par un ou des dispositifs d'actionnnement (31) des porte-couteaux (29), deux par deux, en direction du corps (1) défilant sur le mandrin (14).19. Device according to claim 18, characterized in that each cutting unit (19) is constituted, on the one hand, by one or more knife holders (29) provided with knives (29 ′) interchangeable with one or more blades (20) according to the profile of the body (1) to cutting, said knife holders (29) being slidably mounted on guide devices (30) and, on the other hand, by one or more actuating devices (31) of the knife holders (29), two by two, towards the body (1) running on the mandrel (14). 20. Dispositif selon la revendication 19, ca­ractérisé en ce que le ou les dispositifs d'actionnement (31) sont sous la forme de dispositifs à genouillère (32) reliés à des vérins (33), et comportent, en outre, des moyens de réglage (34, 35) de la course des porte-couteaux (29), les déplacements de deux porte-couteaux (29), opposés étant rendus simultanés à l'aide d'un moyen de connexion (36).20. Device according to claim 19, characterized in that the actuating device or devices (31) are in the form of toggle devices (32) connected to jacks (33), and further comprise means of adjustment (34, 35) of the stroke of the knife holders (29), the movements of two opposite knife holders (29) being made simultaneous by means of a connection means (36).
EP90440022A 1989-03-10 1990-03-06 Method for producing a tubular packing body, packing made by this method and device for this method Expired - Lifetime EP0387171B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8903362A FR2644103B1 (en) 1989-03-10 1989-03-10 PROCESS FOR MANUFACTURING A BODY OF A TUBULAR PACKAGE, PACKAGE THUS OBTAINED AND DEVICE FOR CARRYING OUT SAID METHOD
FR8903362 1989-03-10

Publications (2)

Publication Number Publication Date
EP0387171A1 true EP0387171A1 (en) 1990-09-12
EP0387171B1 EP0387171B1 (en) 1994-07-27

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Application Number Title Priority Date Filing Date
EP90440022A Expired - Lifetime EP0387171B1 (en) 1989-03-10 1990-03-06 Method for producing a tubular packing body, packing made by this method and device for this method

Country Status (5)

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EP (1) EP0387171B1 (en)
JP (1) JP2746719B2 (en)
AT (1) ATE109073T1 (en)
DE (1) DE69010939T2 (en)
FR (1) FR2644103B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994020281A1 (en) * 1993-03-12 1994-09-15 Pack'industrie S.A. Continuous tubular box body production method, particularly for cardboard boxes
ES2067382A2 (en) * 1993-02-03 1995-03-16 Paper Sa Process for manufacturing cardboard boxes and box obtained by means of said process
EP0649735A1 (en) * 1993-10-26 1995-04-26 Paper, S.A. Method for manufacturing cardboard boxes, and box obtained with this method
FR2986991A1 (en) * 2012-02-21 2013-08-23 Pakea METHOD FOR MANUFACTURING A TUBULAR PROFILE, TUBULAR PROFILE OBTAINED AND USE OF SAID TUBULAR PROFILE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE315912C (en) * 1900-01-01
DE1227772B (en) * 1961-06-06 1966-10-27 Quevilly Emballages Process for the production of multi-layer paper bags or sacks as well as apparatus for carrying out this process
FR2383091A1 (en) * 1977-03-08 1978-10-06 Ucb Sa PLASTIC CONTAINER FOR PRESSURIZED SOFT DRINKS
GB2000105A (en) * 1977-06-27 1979-01-04 Lhomme Sa Packaging Box and Method for its Manufacture
GB2068827A (en) * 1980-02-14 1981-08-19 Gore & Ass Composite polytetrafluoroethylene article and a method for its manufacture

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE315912C (en) * 1900-01-01
DE1227772B (en) * 1961-06-06 1966-10-27 Quevilly Emballages Process for the production of multi-layer paper bags or sacks as well as apparatus for carrying out this process
FR2383091A1 (en) * 1977-03-08 1978-10-06 Ucb Sa PLASTIC CONTAINER FOR PRESSURIZED SOFT DRINKS
GB2000105A (en) * 1977-06-27 1979-01-04 Lhomme Sa Packaging Box and Method for its Manufacture
GB2068827A (en) * 1980-02-14 1981-08-19 Gore & Ass Composite polytetrafluoroethylene article and a method for its manufacture

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2067382A2 (en) * 1993-02-03 1995-03-16 Paper Sa Process for manufacturing cardboard boxes and box obtained by means of said process
ES2106654A2 (en) * 1993-02-03 1997-11-01 Paper Sa Improvements to main patent No. 9300188/6 for "Process for manufacturing cardboard boxes and box obtained by means of said process"
WO1994020281A1 (en) * 1993-03-12 1994-09-15 Pack'industrie S.A. Continuous tubular box body production method, particularly for cardboard boxes
FR2702414A1 (en) * 1993-03-12 1994-09-16 Helverep Sa Process for the continuous manufacture of tubular bodies of boxes, especially cardboard boxes
GB2283201A (en) * 1993-03-12 1995-05-03 Pack Ind Sa Continuous trailer tubular box body production method,particularly for cardboard boxes
US5593375A (en) * 1993-03-12 1997-01-14 Pack'industrie S.A. Continuous tubular box body production process, particularly for cardboard boxes
GB2283201B (en) * 1993-03-12 1997-04-02 Pack Ind Sa Continuous tubular box body production method,particularly for cardboard boxes
EP0649735A1 (en) * 1993-10-26 1995-04-26 Paper, S.A. Method for manufacturing cardboard boxes, and box obtained with this method
FR2986991A1 (en) * 2012-02-21 2013-08-23 Pakea METHOD FOR MANUFACTURING A TUBULAR PROFILE, TUBULAR PROFILE OBTAINED AND USE OF SAID TUBULAR PROFILE
WO2013124549A1 (en) 2012-02-21 2013-08-29 Pakea Method for manufacturing a tubular profile member, resulting tubular profile member, and use of said tubular profile member

Also Published As

Publication number Publication date
DE69010939T2 (en) 1995-02-16
JP2746719B2 (en) 1998-05-06
JPH02277637A (en) 1990-11-14
EP0387171B1 (en) 1994-07-27
ATE109073T1 (en) 1994-08-15
FR2644103B1 (en) 1995-01-13
FR2644103A1 (en) 1990-09-14
DE69010939D1 (en) 1994-09-01

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