EP1832413A1 - Method and device for making packages comprising cardboard boxes of variable volume - Google Patents

Method and device for making packages comprising cardboard boxes of variable volume Download PDF

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Publication number
EP1832413A1
EP1832413A1 EP06356146A EP06356146A EP1832413A1 EP 1832413 A1 EP1832413 A1 EP 1832413A1 EP 06356146 A EP06356146 A EP 06356146A EP 06356146 A EP06356146 A EP 06356146A EP 1832413 A1 EP1832413 A1 EP 1832413A1
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EP
European Patent Office
Prior art keywords
marking
box
double
tools
height
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Granted
Application number
EP06356146A
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German (de)
French (fr)
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EP1832413B1 (en
Inventor
Joel Foulon
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Savoye SA
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Savoye SA
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Priority to PL06356146T priority Critical patent/PL1832413T3/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B59/00Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/02Arrangements to enable adjustments to be made while the machine is running
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B59/00Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/001Arrangements to enable adjustments related to the product to be packaged
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B59/00Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/003Arrangements to enable adjustments related to the packaging material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B31MAKING 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
    • B31BMAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/25Surface scoring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B2210/00Specific aspects of the packaging machine
    • B65B2210/04Customised on demand packaging by determining a specific characteristic, e.g. shape or height, of articles or material to be packaged and selecting, creating or adapting a packaging accordingly, e.g. making a carton starting from web material

Definitions

  • the present invention relates, in general, the realization of cardboard packaging, also referred to here as "boxes", the variable volume that is to say adapted to the height of the packaged products in each case.
  • This invention thus relates to the field of the preparation of orders and shipments of products of varying nature and quantity so that they occupy volumes and various heights.
  • a first solution described in the patent French FR 2 710 580 in the name of the Applicant, consists in cutting a cardboard box, in the unfilled state, so as to eliminate the surplus of cardboard, made useless according to the more or less reduced height of the contents of the box.
  • the cardboard chute thus created must be evacuated.
  • a particular solution consists in providing, on the four sides of the box, several parallel and close fold lines. Depending on the height occupied in each case by the products placed on the bottom of the box, one chooses the fold line according to which the flaps will be formed and folded. For example, here reference is made to the patent French FR 2 612 885 .
  • this solution requires, beforehand, on the four sides of the box, the realization by complex means of many fold lines of which only one will finally be used.
  • the height adjustment of the body remains approximate, since it can only be performed discontinuously, according to the "pitch" corresponding to the spacing between two consecutive fold lines.
  • the box is formed around the products to be packaged, previously positioned, and therefore the fold lines delimiting the flaps are made before filling the box, on this box still flat.
  • the method of this document is validly applicable only in the case of the packaging of products of predetermined height, therefore of very precise geometry; this method remains practically inapplicable to boxes receiving products whose nature, shape and quantity can be very variable, which is the case in the field of the preparation of orders and shipments of products.
  • the device that implements this method uses a tool that makes the fold lines on the crates still flat, and running, which makes it difficult to change the position of the fold lines, a box to another.
  • patent US 3866523 provides the realization of folding lines on crates still flat, scrolling, without taking into account here the height of the products that will be packed in each box.
  • the present invention aims to avoid all the drawbacks mentioned above, and its main purpose, therefore, in the context of the production of a carton of variable volume, of the kind here considered, to provide an improved method and device, ensuring the folding and holding in place of the flaps, for a box already formed and filled, even in the case of a box made of thick cardboard, typically a double corrugated cardboard , so as to widen the field of application of this kind of process.
  • the first object of the invention is a method for producing a carton packaging, of the cashbox type, of variable volume adapted to the height of the packaged products in each case, the method providing, in known manner, the forming fold lines at the appropriate height, on the four sides of the box, to delimit upper flaps, and then folding these flaps above the contents of the box, this process being characterized by the fact that, in the step of forming the folding lines, performed after filling the box with the products to be packaged, it is made on each side of this box, for each flap, marking on the inside of the box and another marking on the outside of the fund.
  • the idea underlying the present invention consists in the realization of a "double marking" of the carton, on the sides of the box, so as to facilitate the folding of the upper parts of these flanks, even in the case thick cardboard, especially double-corrugated cardboard. Thanks to this double marking, carried out both internally and externally, the flaps are more easily folded above the contents of the box, previously filled and these flaps do not tend to rise by the elastic effect, which facilitates also their holding in position and their assembly together, before the introduction of the lid or the closure cap of the body.
  • Double labeling is feasible in various advantageous ways.
  • a slight difference in height is preferably provided between the marking made on the inside of the box and the marking made on the outside of the box, on each side of the box.
  • the external marking is here advantageously made slightly higher than the internal marking, to facilitate the folding of the cardboard in a preferred direction, while avoiding interference of the tools performing the marking of the inner side and the outer side.
  • a height offset substantially equal to the thickness of the carton, between, on the one hand, the marking longitudinal flanks and, on the other hand, the marking of the flanks. transverse of the box, this to allow easy folding of the four flaps, without creating pressure and deformation at the four upper corners of the body.
  • the markings made internally and externally may be continuous markings or discontinuous markings, and more or less supported, going as far as a real pre-cutting of the outer sheet of the cardboard on the outside of the box.
  • the marking may, for each sidewall of the body, be less supported in the center of this sidewall and more supported in the side portions of the same side, to ensure a good beginning of folding of the flaps at the four upper corners of the body.
  • the double markings of the four sides of the box can be realized simultaneously. They can also be shifted in time, for example by first making the double markings on the two longitudinal flanks, then the double markings on the transverse sides of the box.
  • the subject of the invention is also a device for producing a carton packaging, of the cashbox type, of variable volume adapted to the height of the packaged products in each case, this device implementing the "double marking" method defined above.
  • this device comprises, for the internal and external marking of the four sides of a cardboard box, for the delimitation of the upper flaps, a set of four pairs of marking tools, assigned respectively to the four flanks. of the box, each pair of tools comprising an internal marking tool, adapted to be lowered into the box to a suitable height, and an external marking tool, adapted to be brought externally against the corresponding side of the box, substantially to the same height as the internal marking tool.
  • the marking tools both inside and outside, are advantageously constituted by toothed or corrugated blades, the teeth or corrugations of these blades being more or less pronounced.
  • These marking blades are guided perpendicularly to the corresponding sides of the box, and they are movable, each in a plane perpendicular to the corresponding side of the cardboard box, by means of actuators pneumatic or hydraulic, or by means of mechanical, electrical or electromechanical actuators.
  • the four internal marking tools are movable by means of a common central actuator, of the jack type, connected by mechanical transmission means such as rods to each of the four internal marking tools.
  • the external marking tool is preferably slightly offset upwards with respect to the internal marking tool, to impose on the carton (after making the double marking) a folding direction preferential, while avoiding interference between the two marking tools, at the time of their actuation.
  • the set of four pairs of marking tools is advantageously carried by a common frame, movable vertically which, by lowering, is able to come to cap inside and outside the body, to position the marking tools inside and outside at a suitable height relative to this fund.
  • the device may also comprise a lift plate, arranged under the marking tools and designed to raise the box, at the time of the operation of marking the sides of the box.
  • a lifting platform proves to be advantageous, in particular in the case of a box of low height (once it is reduced by folding the flaps).
  • the "double marking" device advantageously constitutes an intermediate station, a machine in which the boxes advance on a horizontal conveyor, the machine comprising successively, along the conveyor, a cutting station of the boxes along their vertical edges, over a certain height, the double marking station of the flanks of the boxes, internally and externally, a bending and pressing station of the flaps, and a station for fitting closure caps on the top of the boxes .
  • This machine can also include a station for the introduction in the boxes of air bags for the wedging of packaged products.
  • FIG. 1 shows, in vertical section, a carton 2 packaging of the cashbox type, which has an initial height indicated H.
  • the package 2 receives, on its bottom 3, products 4 which occupy a height h, less than the height initial H of this package. In this case, it is proceeded to a reduction in height of the package 2, the value (H - h), so as to lower the top of the package 2 by bringing it just above the top of the packaged products 4.
  • the package 2 has two longitudinal flanks 5 and two transverse sides 6 of the same height H, this package 2 is still open at its upper part.
  • a first step (a) the carton is cut along the four vertical edges of the package 2 to produce vertical slits 7 which extend, at a certain height, from the top of this package 2.
  • a second step (b) the four flanks 5 and 6 of the package 2 are marked, that is to say that horizontal fold lines 8, which end towards the ends, are formed on these flanks. lower vertical slits 7 previously cut.
  • the fold lines 8 thus formed delimit rectangular portions 9, initially directed upwards, designated as upper flaps or more simply as flaps.
  • the upper flaps 9 are glued, by the deposition of glue areas 10 to the upper corners of the longitudinal flaps 9.
  • step (d) the flaps 9 are folded, by pivoting around the fold lines 8, and thus these flaps 9 are pressed downwardly so as to join together at the four upper corners of the body , thanks to the adhesive zones 10 previously deposited in step (c).
  • step (e) the package 2 is closed at its upper part, by setting up a cap 11.
  • the filled and closed boxes come out, according to the arrow F2, at the end of the machine where the station 16 of laying the caps 11 is located.
  • the cutting station 13, the bending and pressing station 15, and the station 16 of laying the caps are made in a generally known manner, and therefore will not be further detailed.
  • flank marking station 14 shown in more detail in FIGS. 4 and 5 and described hereinafter.
  • the flank marking station 14 comprises, above the conveyor 12, a vertically displaceable frame 18 by means of a central actuator 19.
  • the frame 18 carries a marking tool, consisting of internal marking tools 20 and external marking tools 21.
  • the inner marking tools 20 are constituted by four movable corrugated blades arranged in a horizontal rectangle. Each marking tool 20 is guided horizontally in translation, perpendicularly to its longitudinal direction, and is fixed on a support block 22.
  • the outer marking tools 21 are constituted by four movable toothed blades, arranged in a horizontal rectangle, each external marking tool 21 being placed parallel to an internal marking tool 20, and facing the latter. Each marking tool 21 is movable in translation horizontally, perpendicularly to its longitudinal direction, and it is attached to a support bar 26. Two pneumatic cylinders 27, arranged laterally, are coupled to each support bar 26 to move the tool marking 21 corresponding.
  • the marking tool is composed of four pairs of marking tools, each of which comprises an internal marking tool 20 and an external marking tool 21, located one opposite the other, the tool for marking.
  • external marking 21 may be slightly higher than the inner marking tool 20.
  • the tools 20 thus make an internal marking of the sides 5 and 6 of the package 2. Thanks to their teeth, the tools 21 also perform external marking of the sides 5 and 6 of the package 2. These markings mark on the packaging 2 the flaps 9.
  • the cylinders 23 and 27 are controlled in the opposite direction, so as to cause the spacing of the marking tools 20 and 21, then the frame 18 is raised so as to clear the package 2.
  • the package 2 can be transferred by the conveyor 12 to the next station 15 folding and pressing, the sizing of the flaps 9 being achievable during this transfer.
  • the invention is particularly applicable to a packaging 2 thick corrugated cardboard, double groove or a two-ply package in single groove, as encountered in the case of trays.
  • FIG. 6 also shows the slight vertical offset, indicated in d, which is advantageously provided between the external marking tool 21 and the corresponding internal marking tool 20.

Abstract

The method involves forming horizontal folding lines at convenient height on four flanks (5, 6) of a package (2) e.g. box, to delimit longitudinal flaps. The formation of folding lines is carried out after filling the package with products by marking on both inner and outer sides of the package for each flap using inner and outer marking tools (20, 21), respectively. An independent claim is also included for a device for making a cardboard package.

Description

La présente invention concerne, de façon générale, la réalisation d'emballages en carton, désignés ici aussi comme « caisses », dont le volume variable c'est-à-dire adapté à la hauteur des produits emballés dans chaque cas. Cette invention se rattache ainsi au domaine de la préparation des commandes et expéditions de produits, de nature et quantité variable de sorte qu'ils occupent des volumes et hauteurs divers.The present invention relates, in general, the realization of cardboard packaging, also referred to here as "boxes", the variable volume that is to say adapted to the height of the packaged products in each case. This invention thus relates to the field of the preparation of orders and shipments of products of varying nature and quantity so that they occupy volumes and various heights.

Il est déjà connu, dans ce domaine, d'utiliser des caisses en carton de caractéristiques initiales identiques, mais que l'on peut adapter à chaque utilisation particulière, c'est-à-dire à chaque hauteur de produits à emballer, par des procédés appropriés.It is already known, in this field, to use cardboard boxes of identical initial characteristics, but that can be adapted to each particular use, that is to say at each height of the products to be packaged, by appropriate processes.

Une première solution, décrite dans le brevet français FR 2 710 580 au nom du Demandeur, consiste à découper une caisse en carton, à l'état non rempli, de manière à éliminer le surplus de carton, rendu inutile en fonction de la hauteur plus ou moins réduite du contenu de la caisse. La chute de carton ainsi créée doit être alors évacuée.A first solution, described in the patent French FR 2 710 580 in the name of the Applicant, consists in cutting a cardboard box, in the unfilled state, so as to eliminate the surplus of cardboard, made useless according to the more or less reduced height of the contents of the box. The cardboard chute thus created must be evacuated.

D'autres solutions déjà connues permettent de réduire le volume d'une caisse en carton, pour l'adapter à la hauteur des produits emballés, sans que se forment des déchets à évacuer.Other solutions already known to reduce the volume of a cardboard box, to adapt to the height of the packaged products without forming waste to be evacuated.

Une solution particulière consiste à prévoir, sur les quatre flancs de la caisse, plusieurs lignes de pliage parallèles et rapprochées. En fonction de la hauteur occupée dans chaque cas par les produits placés sur le fond de la caisse, on choisit la ligne de pliage suivant laquelle les rabats seront formés et pliés. A titre d'exemple, il est ici fait référence au brevet français FR 2 612 885 .A particular solution consists in providing, on the four sides of the box, several parallel and close fold lines. Depending on the height occupied in each case by the products placed on the bottom of the box, one chooses the fold line according to which the flaps will be formed and folded. For example, here reference is made to the patent French FR 2 612 885 .

Comme on le conçoit facilement, cette solution nécessite au préalable, sur les quatre flancs de la caisse, la réalisation par des moyens complexes de lignes de pliage nombreuses dont une seule sera finalement utilisée. De plus, l'adaptation en hauteur de la caisse reste approximative, puisqu'elle peut seulement être réalisée de façon discontinue, selon le « pas » correspondant à l'écartement entre deux lignes de pliage consécutives.As it is easy to conceive, this solution requires, beforehand, on the four sides of the box, the realization by complex means of many fold lines of which only one will finally be used. In addition, the height adjustment of the body remains approximate, since it can only be performed discontinuously, according to the "pitch" corresponding to the spacing between two consecutive fold lines.

Une autre solution, évitant ces inconvénients, consiste à utiliser une caisse dont les parties, destinées à constituer les rabats supérieurs, ne sont initialement délimitées par aucune ligne de pliage pré-formée. A chaque utilisation, et en fonction de la hauteur des produits à emballer, il est formé sur chaque flanc de la caisse une ligne de pliage à la hauteur convenable, puis le rabat délimité par cette ligne est plié au-dessus du contenu de la caisse, préalablement remplie. Ce principe se trouve décrit, par exemple, dans le brevet français FR 2 606 367 .Another solution, avoiding these disadvantages, is to use a box whose parts, intended to form the upper flaps, are initially defined by any pre-formed fold line. Each use, and depending on the height of the products to be packaged, it is formed on each side of the box a fold line at the appropriate height, and the flap delimited by this line is folded above the contents of the box , previously filled. This principle is described, for example, in the patent French FR 2 606 367 .

Cependant, un tel procédé suppose qu'après formation des lignes de pliage, à l'emplacement approprié, les rabats puissent être pliés et maintenus au-dessus du contenu de la caisse, avant d'être assemblés entre eux par exemple par collage ou par agrafage ou par bande adhésive ou encore par simple imbrication.However, such a method assumes that after formation of the fold lines, at the appropriate location, the flaps can be folded and held above the contents of the box, before being assembled together for example by gluing or by stapling or by adhesive tape or by simply nesting.

Dans le cas d'une caisse en carton épais, en particulier un carton à double cannelure, le procédé qui vient d'être exposé est difficile à mettre en oeuvre, car l'élasticité « naturelle » du carton tend à ramener les rabats de la caisse vers le haut. En particulier, dans le cas d'une machine connue mettant en oeuvre ce procédé, les lignes de pliage des rabats sont marquées au moyen d'une lame coupante agissant uniquement du côté intérieur de la caisse, ce qui peut convenir pour du carton à simple cannelure, mais s'avère insuffisant dans le cas d'un carton à double cannelure, tel qu'utilisé fréquemment pour des caisses dites « américaines », ou encore pour des barquettes ou des bacs en carton.In the case of a thick cardboard box, in particular a double corrugated cardboard, the process which has just been exposed is difficult to implement, since the "natural" elasticity of the cardboard tends to bring back the flaps of the cardboard box. cashier up. In particular, in the case of a known machine implementing this method, the folding lines of the flaps are marked by means of a cutting blade acting only on the inside of the box, which may be suitable for single cardboard. flute, but proves insufficient in the case of a double-corrugated cardboard, as commonly used for so-called "American" boxes, or for trays or cardboard trays.

De plus, dans le cas du brevet français FR 2606367 précité, la caisse est formée autour des produits à emballer, préalablement positionnés, et par conséquent les lignes de pliage délimitant les rabats sont réalisées avant le remplissage de la caisse, sur cette caisse encore à plat. Ainsi, le procédé de ce document n'est valablement applicable que dans le cas de l'emballage de produits de hauteur prédéterminée, donc de géométrie bien précise ; ce procédé reste pratiquement inapplicable à des caisses recevant des produits dont la nature, la forme et la quantité peuvent être très variables, ce qui est le cas dans le domaine de la préparation des commandes et expéditions de produits. De plus, le dispositif qui met en oeuvre ce procédé utilise un outillage qui réalise les lignes de pliage sur les caisses encore à plat, et en cours de défilement, ce qui rend difficile le changement de position des lignes de pliage, d'une caisse à une autre.Moreover, in the case of the patent French FR 2606367 above, the box is formed around the products to be packaged, previously positioned, and therefore the fold lines delimiting the flaps are made before filling the box, on this box still flat. Thus, the method of this document is validly applicable only in the case of the packaging of products of predetermined height, therefore of very precise geometry; this method remains practically inapplicable to boxes receiving products whose nature, shape and quantity can be very variable, which is the case in the field of the preparation of orders and shipments of products. In addition, the device that implements this method uses a tool that makes the fold lines on the crates still flat, and running, which makes it difficult to change the position of the fold lines, a box to another.

De même, le brevet US 3866523 prévoit la réalisation de lignes de pliage sur des caisses encore à plat, en cours de défilement, sans tenir compte ici de la hauteur des produits qui seront emballés dans chaque caisse.Similarly, the patent US 3866523 provides the realization of folding lines on crates still flat, scrolling, without taking into account here the height of the products that will be packed in each box.

La présente invention vise à éviter tous les inconvénients précédemment mentionnés, et elle a donc principalement pour but, dans le cadre de la réalisation d'un emballage en carton de volume variable, du genre ici considéré, à fournir un procédé et un dispositif perfectionnés, assurant le pliage et le maintien en place des rabats, pour une caisse déjà formée et remplie, même dans le cas d'une caisse réalisée en carton épais, typiquement un carton à double cannelure, de manière à élargir le domaine d'application de ce genre de procédé.The present invention aims to avoid all the drawbacks mentioned above, and its main purpose, therefore, in the context of the production of a carton of variable volume, of the kind here considered, to provide an improved method and device, ensuring the folding and holding in place of the flaps, for a box already formed and filled, even in the case of a box made of thick cardboard, typically a double corrugated cardboard , so as to widen the field of application of this kind of process.

A cet effet, l'invention a pour premier objet un procédé pour la réalisation d'un emballage en carton, du genre caisse, de volume variable adapté à la hauteur des produits emballés dans chaque cas, le procédé prévoyant, de façon connue, la formation de lignes de pliage à la hauteur convenable, sur les quatre flancs de la caisse, pour délimiter des rabats supérieurs, puis le pliage de ces rabats au-dessus du contenu de la caisse, ce procédé étant caractérisé par le fait que, dans l'étape de formation des lignes de pliage, effectuée après remplissage de la caisse avec les produits à emballer, il est réalisé sur chaque flanc de cette caisse, pour chaque rabat, un marquage du côté intérieur de la caisse et un autre marquage du côté extérieur de la caisse.For this purpose, the first object of the invention is a method for producing a carton packaging, of the cashbox type, of variable volume adapted to the height of the packaged products in each case, the method providing, in known manner, the forming fold lines at the appropriate height, on the four sides of the box, to delimit upper flaps, and then folding these flaps above the contents of the box, this process being characterized by the fact that, in the step of forming the folding lines, performed after filling the box with the products to be packaged, it is made on each side of this box, for each flap, marking on the inside of the box and another marking on the outside of the fund.

Ainsi, l'idée à la base de la présente invention consiste en la réalisation d'un « double marquage » du carton, sur les flancs de la caisse, de manière à faciliter le rabattement des parties supérieures de ces flancs, même dans le cas d'un carton épais, notamment un carton à double cannelure. Grâce à ce double marquage, réalisé à la fois intérieurement et extérieurement, les rabats sont plus facilement pliés au-dessus du contenu de la caisse, précédemment remplie et ces rabats ne tendent pratiquement plus à se relever par effet d'élasticité, ce qui facilite aussi leur maintien en position et leur assemblage entre eux, avant la mise en place du couvercle ou de la coiffe de fermeture de la caisse.Thus, the idea underlying the present invention consists in the realization of a "double marking" of the carton, on the sides of the box, so as to facilitate the folding of the upper parts of these flanks, even in the case thick cardboard, especially double-corrugated cardboard. Thanks to this double marking, carried out both internally and externally, the flaps are more easily folded above the contents of the box, previously filled and these flaps do not tend to rise by the elastic effect, which facilitates also their holding in position and their assembly together, before the introduction of the lid or the closure cap of the body.

Le double marquage est réalisable selon diverses modalités avantageuses.Double labeling is feasible in various advantageous ways.

En particulier, il est prévu de préférence un léger décalage en hauteur, entre d'une part le marquage réalisé du côté intérieur de la caisse et d'autre part le marquage réalisé du côté extérieur de la caisse, ceci sur chaque flanc de la caisse ; le marquage extérieur est ici avantageusement réalisé légèrement plus haut que le marquage intérieur, afin de faciliter le pliage du carton dans un sens préférentiel, tout en évitant une interférence des outils réalisant le marquage du côté intérieur et du côté extérieur.In particular, a slight difference in height is preferably provided between the marking made on the inside of the box and the marking made on the outside of the box, on each side of the box. ; the external marking is here advantageously made slightly higher than the internal marking, to facilitate the folding of the cardboard in a preferred direction, while avoiding interference of the tools performing the marking of the inner side and the outer side.

De plus, tant pour le marquage intérieur que pour le marquage extérieur, il est avantageusement prévu un décalage en hauteur, égal sensiblement à l'épaisseur du carton, entre d'une part le marquage flancs longitudinaux et d'autre part le marquage des flancs transversaux de la caisse, ceci pour permettre un rabattement aisé des quatre rabats, sans créer des pressions et déformations aux quatre angles supérieurs de la caisse.In addition, both for the internal marking and for the external marking, it is advantageously provided with a height offset, substantially equal to the thickness of the carton, between, on the one hand, the marking longitudinal flanks and, on the other hand, the marking of the flanks. transverse of the box, this to allow easy folding of the four flaps, without creating pressure and deformation at the four upper corners of the body.

Les marquages réalisés intérieurement et extérieurement peuvent être des marquages continus ou des marquages discontinus, et plus ou moins appuyés, en allant jusqu'à une véritable pré-découpe de la feuille externe du carton, sur le côté extérieur de la caisse. Le marquage peut, pour chaque flanc de la caisse, être moins appuyé au centre de ce flanc et plus appuyé dans les parties latérales du même flanc, pour garantir une bonne amorce de pliage des rabats, aux quatre angles supérieurs de la caisse.The markings made internally and externally may be continuous markings or discontinuous markings, and more or less supported, going as far as a real pre-cutting of the outer sheet of the cardboard on the outside of the box. The marking may, for each sidewall of the body, be less supported in the center of this sidewall and more supported in the side portions of the same side, to ensure a good beginning of folding of the flaps at the four upper corners of the body.

Les doubles marquages des quatre flancs de la caisse peuvent être réalisés de façon simultanée. Ils peuvent aussi être décalés dans le temps, par exemple en réalisant d'abord les doubles marquages sur les deux flancs longitudinaux, puis les doubles marquages sur les flancs transversaux de la caisse.The double markings of the four sides of the box can be realized simultaneously. They can also be shifted in time, for example by first making the double markings on the two longitudinal flanks, then the double markings on the transverse sides of the box.

L'invention a aussi pour objet un dispositif pour la réalisation d'un emballage en carton, du genre caisse, de volume variable adapté à la hauteur des produits emballés dans chaque cas, ce dispositif mettant en oeuvre le procédé de « double marquage » défini ci-dessus.The subject of the invention is also a device for producing a carton packaging, of the cashbox type, of variable volume adapted to the height of the packaged products in each case, this device implementing the "double marking" method defined above.

Selon l'invention, ce dispositif comprend, pour le marquage intérieur et extérieur des quatre flancs d'une caisse en carton, en vue de la délimitation des rabats supérieurs, un ensemble de quatre paires d'outils de marquage, attribuées respectivement aux quatre flancs de la caisse, chaque paire d'outils comprenant un outil de marquage intérieur, apte à être descendu dans la caisse à une hauteur convenable, et un outil de marquage extérieur, apte à être amené extérieurement contre le flanc correspondant de la caisse, sensiblement à la même hauteur que l'outil de marquage intérieur.According to the invention, this device comprises, for the internal and external marking of the four sides of a cardboard box, for the delimitation of the upper flaps, a set of four pairs of marking tools, assigned respectively to the four flanks. of the box, each pair of tools comprising an internal marking tool, adapted to be lowered into the box to a suitable height, and an external marking tool, adapted to be brought externally against the corresponding side of the box, substantially to the same height as the internal marking tool.

Les outils de marquage, tant intérieurs qu'extérieurs, sont avantageusement constitués par des lames dentées ou ondulées, les dentures ou ondulations de ces lames étant plus ou moins prononcées. Ces lames de marquage sont guidées perpendiculairement aux flancs correspondants de la caisse, et elles sont déplaçables, chacune dans un plan perpendiculaire au flanc correspondant de la caisse en carton, au moyen d'actionneurs pneumatiques ou hydrauliques, ou encore au moyen d'actionneurs mécaniques, électriques ou électromécaniques.The marking tools, both inside and outside, are advantageously constituted by toothed or corrugated blades, the teeth or corrugations of these blades being more or less pronounced. These marking blades are guided perpendicularly to the corresponding sides of the box, and they are movable, each in a plane perpendicular to the corresponding side of the cardboard box, by means of actuators pneumatic or hydraulic, or by means of mechanical, electrical or electromechanical actuators.

Avantageusement, les quatre outils de marquage intérieurs sont déplaçables au moyen d'un actionneur central commun, du genre vérin, relié par des moyens de transmission mécaniques tels que des biellettes à chacun des quatre outils de marquage intérieurs.Advantageously, the four internal marking tools are movable by means of a common central actuator, of the jack type, connected by mechanical transmission means such as rods to each of the four internal marking tools.

Dans chaque paire d'outils de marquage, l'outil de marquage extérieur est, de préférence, légèrement décalé vers le haut par rapport à l'outil de marquage intérieur, pour imposer au carton (après réalisation du double marquage) un sens de pliage préférentiel, tout en évitant une interférence entre les deux outils de marquage, au moment de leur actionnement.In each pair of marking tools, the external marking tool is preferably slightly offset upwards with respect to the internal marking tool, to impose on the carton (after making the double marking) a folding direction preferential, while avoiding interference between the two marking tools, at the time of their actuation.

L'ensemble des quatre paires d'outils de marquage est avantageusement porté par un ossature commune, déplaçable verticalement qui, par abaissement, est apte à venir coiffer intérieurement et extérieurement la caisse, pour positionner les outils de marquage intérieurs et extérieurs à une hauteur convenable relativement à cette caisse.The set of four pairs of marking tools is advantageously carried by a common frame, movable vertically which, by lowering, is able to come to cap inside and outside the body, to position the marking tools inside and outside at a suitable height relative to this fund.

En complément ou en variante à ce qui précède, le dispositif peut encore comprendre un plateau élévateur, disposé sous les outils de marquage et prévu pour surélever la caisse, au moment de l'opération de marquage des flancs de cette caisse. Un tel plateau élévateur s'avère avantageux, en particulier dans le cas d'une caisse de faible hauteur (une fois celle-ci réduite par pliage des rabats).In addition or as an alternative to the foregoing, the device may also comprise a lift plate, arranged under the marking tools and designed to raise the box, at the time of the operation of marking the sides of the box. Such a lifting platform proves to be advantageous, in particular in the case of a box of low height (once it is reduced by folding the flaps).

Le dispositif de « double marquage », objet de la présente invention, constitue avantageusement un poste intermédiaire, d'une machine dans laquelle les caisses avancent sur un convoyeur horizontal, la machine comprenant successivement, le long du convoyeur, un poste de coupe des caisses le long de leurs arêtes verticales, sur une certaine hauteur, le poste de double marquage des flancs des caisses, intérieurement et extérieurement, un poste de pliage et de pressage des rabats, et un poste de pose de coiffes de fermeture sur le sommet des caisses. Cette machine peut encore comprendre un poste pour la mise en place, dans les caisses, de sacs gonflables destinés au calage des produits emballés.The "double marking" device, object of the present invention, advantageously constitutes an intermediate station, a machine in which the boxes advance on a horizontal conveyor, the machine comprising successively, along the conveyor, a cutting station of the boxes along their vertical edges, over a certain height, the double marking station of the flanks of the boxes, internally and externally, a bending and pressing station of the flaps, and a station for fitting closure caps on the top of the boxes . This machine can also include a station for the introduction in the boxes of air bags for the wedging of packaged products.

L'invention sera mieux comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple, une forme d'exécution de ce dispositif de « double marquage », et de la machine incorporant un tel dispositif :

  • Figure 1 est un schéma illustrant en coupe, de façon très simplifiée, le principe d'un emballage en carton de volume variable ;
  • Figure 2 représente, sous la forme d'une succession de schémas, les principales étapes de la réalisation d'un tel emballage ;
  • Figure 3 est une vue d'ensemble, en perspective, d'une machine sur laquelle sont réalisables de tels emballages ;
  • Figure 4 est une vue en perspective de l'outillage de marquage et de son ossature de support, appartenant au poste de marquage de cette machine ;
  • Figure 5 est une vue en perspective correspondant à la figure 4 mais sans l'ossature, montrant plus particulièrement les outils de marquage ;
  • Figure 6 est un schéma illustrant l'application de l'invention à un emballage en carton à double cannelure.
The invention will be better understood with the aid of the description which follows, with reference to the appended schematic drawing representing, by way of example, an embodiment of this "double marking" device, and of the machine incorporating a such device:
  • Figure 1 is a diagram illustrating in section, in a very simplified manner, the principle of a carton of variable volume;
  • Figure 2 shows, in the form of a succession of diagrams, the main steps of the realization of such a package;
  • Figure 3 is an overview, in perspective, of a machine on which are feasible such packaging;
  • Figure 4 is a perspective view of the marking tool and its supporting frame, belonging to the marking station of this machine;
  • Figure 5 is a perspective view corresponding to Figure 4 but without the frame, showing more particularly the marking tools;
  • Figure 6 is a diagram illustrating the application of the invention to a double corrugated cardboard package.

La figure 1 montre, en coupe verticale, un emballage en carton 2 du genre caisse, qui possède une hauteur initiale indiquée H. L'emballage 2 reçoit, sur son fond 3, des produits 4 qui occupent une hauteur h, inférieure à la hauteur initiale H de cet emballage. Dans ce cas, il est procédé à une réduction de hauteur de l'emballage 2, de la valeur (H - h), de manière à abaisser le sommet de cet emballage 2 en l'amenant juste au-dessus du sommet des produits emballés 4.FIG. 1 shows, in vertical section, a carton 2 packaging of the cashbox type, which has an initial height indicated H. The package 2 receives, on its bottom 3, products 4 which occupy a height h, less than the height initial H of this package. In this case, it is proceeded to a reduction in height of the package 2, the value (H - h), so as to lower the top of the package 2 by bringing it just above the top of the packaged products 4.

En se référant à la figure 2, sont maintenant décrites les différentes étapes de la réalisation et de la fermeture d'un tel emballage 2, conduisant à l'adaptation de sa hauteur.Referring to Figure 2, are now described the various steps of the realization and closure of such a package 2, leading to the adaptation of its height.

A l'état initial ici considéré, l'emballage 2 possède deux flancs longitudinaux 5 et deux flancs transversaux 6, de même hauteur H, cet emballage 2 étant encore ouvert à sa partie supérieure. Dans une première étape (a), il est procédé à une coupe du carton le long des quatre arêtes verticales de l'emballage 2, pour réaliser des fentes verticales 7 qui s'étendent, sur une certaine hauteur, depuis le sommet de cet emballage 2.In the initial state considered here, the package 2 has two longitudinal flanks 5 and two transverse sides 6 of the same height H, this package 2 is still open at its upper part. In a first step (a), the carton is cut along the four vertical edges of the package 2 to produce vertical slits 7 which extend, at a certain height, from the top of this package 2.

Dans une deuxième étape (b), il est procédé au marquage des quatre flancs 5 et 6 de l'emballage 2, c'est-à-dire que sont formées sur ces flancs des lignes de pliage horizontales 8, qui aboutissent vers les extrémités inférieures des fentes verticales 7 précédemment découpées. Les lignes de pliage 8 ainsi formées délimitent des parties rectangulaires 9, initialement dirigées vers le haut, désignées comme rabats supérieurs ou plus simplement comme rabats.In a second step (b), the four flanks 5 and 6 of the package 2 are marked, that is to say that horizontal fold lines 8, which end towards the ends, are formed on these flanks. lower vertical slits 7 previously cut. The fold lines 8 thus formed delimit rectangular portions 9, initially directed upwards, designated as upper flaps or more simply as flaps.

Dans une étape intermédiaire (c), les rabats supérieurs 9 sont encollés, par le dépôt de zones de colle 10 vers les angles supérieurs des rabats 9 longitudinaux.In an intermediate step (c), the upper flaps 9 are glued, by the deposition of glue areas 10 to the upper corners of the longitudinal flaps 9.

Dans l'étape suivante (d), les rabats 9 sont pliés, par pivotement autour des lignes de pliage 8, et ainsi ces rabats 9 sont pressés vers le bas de manière à s'assembler entre eux, aux quatre angles supérieurs de la caisse, grâce aux zones de colle 10 précédemment déposées dans l'étape (c).In the next step (d), the flaps 9 are folded, by pivoting around the fold lines 8, and thus these flaps 9 are pressed downwardly so as to join together at the four upper corners of the body , thanks to the adhesive zones 10 previously deposited in step (c).

Enfin, dans l'étape (e), l'emballage 2 est fermé à sa partie supérieure, par mise en place d'une coiffe 11.Finally, in step (e), the package 2 is closed at its upper part, by setting up a cap 11.

Ces différentes opérations sont successivement réalisées sur une seule machine, représentée dans son ensemble sur la figure 3. La machine comprend plusieurs postes, disposés en ligne, qui se succèdent le long d'un convoyeur 12 horizontal, par exemple un convoyeur à barres. Ainsi, les emballages 2 entrent à une extrémité de la machine, suivant la flèche F1, et ils sont entraînés en avant sur le convoyeur 12 qui leur fait traverser, successivement :

  • un poste 13 de coupe, qui réalise les fentes verticales 7 sur les quatre arêtes verticales des emballages 2 ;
  • un poste 14 de marquage des flancs 5 et 6 des emballages 2 ;
  • un poste 15 de pliage et de pressage des rabats 9 ;
  • un poste 16 de pose des coiffes 11, auquel est associé latéralement un magasin 17 de stockage des coiffes 11.
These different operations are performed successively on a single machine, represented as a whole in FIG. 3. The machine comprises several stations, arranged in line, which follow one another along a horizontal conveyor 12, for example a bar conveyor. Thus, the packages 2 enter at one end of the machine, along the arrow F1, and they are driven forward on the conveyor 12 which makes them cross, successively:
  • a cutting station 13, which makes the vertical slots 7 on the four vertical edges of the packages 2;
  • a station 14 for marking the sides 5 and 6 of the packages 2;
  • a station 15 for folding and pressing the flaps 9;
  • a station 16 for fitting the caps 11, to which is associated laterally a magazine 17 for storing the caps 11.

Les caisses remplies et fermées sortent, suivant la flèche F2, à l'extrémité de la machine où se situe le poste 16 de pose des coiffes 11.The filled and closed boxes come out, according to the arrow F2, at the end of the machine where the station 16 of laying the caps 11 is located.

Le poste de coupe 13, le poste de pliage et de pressage 15, et le poste 16 de pose des coiffes sont réalisés de manière généralement connue, et ne seront donc pas davantage détaillés.The cutting station 13, the bending and pressing station 15, and the station 16 of laying the caps are made in a generally known manner, and therefore will not be further detailed.

On s'intéresse ici plus particulièrement au poste 14 de marquage des flancs, représenté plus en détail sur les figures 4 et 5 et décrit ci-après.Of particular interest here is the flank marking station 14, shown in more detail in FIGS. 4 and 5 and described hereinafter.

Le poste 14 de marquage des flancs comporte, au-dessus du convoyeur 12, une ossature 18 déplaçable verticalement au moyen d'un actionneur central 19. L'ossature 18 porte un outillage de marquage, composé d'outils de marquage intérieurs 20 et d'outils de marquage extérieurs 21.The flank marking station 14 comprises, above the conveyor 12, a vertically displaceable frame 18 by means of a central actuator 19. The frame 18 carries a marking tool, consisting of internal marking tools 20 and external marking tools 21.

Les outils de marquage intérieurs 20 sont constitués par quatre lames ondulées mobiles, disposées suivant un rectangle horizontal. Chaque outil de marquage 20 est guidé horizontalement en translation, perpendiculairement à sa direction longitudinale, et se trouve fixé sur un bloc-support 22. Un vérin pneumatique central 23, disposé verticalement, déplace une plaque horizontale rectangulaire 24 qui est reliée, par l'intermédiaire de biellettes obliques 25 articulées sur les quatre côtés de cette plaque 24, aux blocs-supports 22 respectifs des quatre outils de marquage intérieurs 20.The inner marking tools 20 are constituted by four movable corrugated blades arranged in a horizontal rectangle. Each marking tool 20 is guided horizontally in translation, perpendicularly to its longitudinal direction, and is fixed on a support block 22. A central pneumatic cylinder 23, arranged vertically, moves a rectangular horizontal plate 24 which is connected, by means of oblique rods 25 articulated on the four sides of this plate 24, with the respective support blocks 22 of the four internal marking tools 20.

Les outils de marquage extérieurs 21 sont constitués par quatre lames dentées mobiles, disposées suivant un rectangle horizontal, chaque outil de marquage extérieur 21 étant placé parallèlement à un outil de marquage intérieur 20, et en regard de ce dernier. Chaque outil de marquage 21 est mobile en translation horizontalement, perpendiculairement à sa direction longitudinale, et il se trouve fixé à une barre-support 26. Deux vérins pneumatiques 27, disposés latéralement, sont attelés à chaque barre-support 26 pour déplacer l'outil de marquage 21 correspondant.The outer marking tools 21 are constituted by four movable toothed blades, arranged in a horizontal rectangle, each external marking tool 21 being placed parallel to an internal marking tool 20, and facing the latter. Each marking tool 21 is movable in translation horizontally, perpendicularly to its longitudinal direction, and it is attached to a support bar 26. Two pneumatic cylinders 27, arranged laterally, are coupled to each support bar 26 to move the tool marking 21 corresponding.

Ainsi, l'outillage de marquage se compose de quatre paires d'outils de marquage, dont chacune comprend un outil de marquage intérieur 20 et un outil de marquage extérieur 21, situés l'un en regard de l'autre, l'outil de marquage extérieur 21 pouvant se situer légèrement plus haut que l'outil de marquage intérieur 20. De plus, comme le montre la figure 5, il est prévu un décalage en hauteur entre les outils de marquage 20, 21 disposés dans le sens longitudinal, d'une part, et les outils de marquage 20, 21 disposés dans le sens transversal, d'autre part, ce qui permet notamment aux extrémités des outils de marquage 20 longitudinaux de passer au-dessus des outils de marquage 20 transversaux.Thus, the marking tool is composed of four pairs of marking tools, each of which comprises an internal marking tool 20 and an external marking tool 21, located one opposite the other, the tool for marking. external marking 21 may be slightly higher than the inner marking tool 20. In addition, as shown in Figure 5, there is provided a height offset between the marking tools 20, 21 arranged in the longitudinal direction, d on the one hand, and the marking tools 20, 21 arranged in the transverse direction, on the other hand, which allows in particular the ends of the longitudinal marking tools 20 to pass above the transverse marking tools.

En cours de fonctionnement de la machine, lorsqu'un emballage 2 est transféré au poste 14 de marquage des flancs par l'avance du convoyeur 12, l'ossature 18 est abaissée par l'actionneur central 19 de manière à venir coiffer cet emballage 2, par l'intérieur et par l'extérieur. Les outils de marquage intérieurs 20 et extérieurs 21 sont ainsi amenés, dans une position encore écartée les uns des autres, en regard des flancs 5 et 6 de l'emballage 2, ces outils étant positionnés à la hauteur convenable par rapport à la réduction de volume désirée dans chaque cas. Il est alors procédé à l'actionnement simultané des outils de marquage intérieurs 20 et extérieurs 21, plus particulèrement :

  • par la commande du vérin central 23, et par la transmission mécanique réalisée par les biellettes 25, les quatre outils de marquage intérieurs 20 sont rapprochés, par l'intérieur, des quatre flancs 5 et 6 correspondants de l'emballage 2 ;
  • par la commande simultanée de tous les vérins 27, les quatre outils de marquage extérieurs 21 sont rapprochés, par l'extérieur, des quatre flancs 5 et 6 de l'emballage 2.
During operation of the machine, when a package 2 is transferred to the position 14 for marking the sidewalls by the advance of the conveyor 12, the frame 18 is lowered by the central actuator 19 so as to cap this package 2 , from the inside and the outside. The inner and outer marking tools 20 are thus brought, in a position still spaced from each other, facing the sidewalls 5 and 6 of the package 2, these tools being positioned at the appropriate height with respect to the reduction of desired volume in each case. It is then proceeded to the simultaneous operation of the inner marking tools 20 and outer 21, more particularly:
  • by the control of the central cylinder 23, and by the mechanical transmission made by the rods 25, the four marking tools inner 20 are brought together, from the inside, the four sides 5 and 6 corresponding to the package 2;
  • by the simultaneous control of all the cylinders 27, the four external marking tools 21 are brought together, from the outside, of the four sides 5 and 6 of the package 2.

Grâce à leurs ondulations, les outils 20 réalisent ainsi un marquage intérieur des flancs 5 et 6 de l'emballage 2. Grâce à leurs dentures, les outils 21 réalisent en outre un marquage extérieur des flancs 5 et 6 de l'emballage 2. Ces marquages délimitent sur l'emballage 2 les rabats 9.Thanks to their corrugations, the tools 20 thus make an internal marking of the sides 5 and 6 of the package 2. Thanks to their teeth, the tools 21 also perform external marking of the sides 5 and 6 of the package 2. These markings mark on the packaging 2 the flaps 9.

Ensuite, les vérins 23 et 27 sont commandés en sens inverse, de manière à provoquer l'écartement des outils de marquage 20 et 21, puis l'ossature 18 est relevée de manière à dégager l'emballage 2. Après remontée de l'outillage de marquage, l'emballage 2 peut être transféré, par le convoyeur 12, vers le poste suivant 15 de pliage et de pressage, l'encollage des rabats 9 étant réalisable au cours de ce transfert.Then, the cylinders 23 and 27 are controlled in the opposite direction, so as to cause the spacing of the marking tools 20 and 21, then the frame 18 is raised so as to clear the package 2. After reassembly of the tooling marking, the package 2 can be transferred by the conveyor 12 to the next station 15 folding and pressing, the sizing of the flaps 9 being achievable during this transfer.

Comme l'illustre la figure 6, l'invention est notamment applicable à un emballage 2 en carton ondulé épais, à double cannelure ou un emballage à deux épaisseurs en simple cannelure, tel que rencontré dans le cas de barquettes. La réalisation simultanée d'un marquage intérieur des flancs de l'emballage par les outils 20, et d'un marquage extérieur des mêmes flancs par les outils 21, au poste 14 de marquage des flancs, facilite alors le pliage des rabats au poste suivant 15 de pliage et de pressage.As illustrated in Figure 6, the invention is particularly applicable to a packaging 2 thick corrugated cardboard, double groove or a two-ply package in single groove, as encountered in the case of trays. The simultaneous realization of an internal marking of the sides of the package by the tools 20, and an external marking of the same flanks by the tools 21, at the position 14 for marking the flanks, then facilitates the folding of the flaps at the next position 15 folding and pressing.

Cette figure 6 montre aussi le léger décalage vertical, indiqué en d, qui est avantageusement prévu entre l'outil de marquage extérieur 21 et l'outil de marquage intérieur 20 correspondant.This FIG. 6 also shows the slight vertical offset, indicated in d, which is advantageously provided between the external marking tool 21 and the corresponding internal marking tool 20.

L'on ne s'éloignerait pas du cadre de l'invention, telle que définie dans les revendications annexées :

  • par des modifications de détail, concernant par exemple la forme des lames de marquage ;
  • par le recours à tous équivalents, notamment en remplaçant les vérins pneumatiques d'actionnement des lames de marquage par des vérins hydrauliques, ou par des actionneurs mécaniques ;
  • par l'adjonction de toutes fonctions complémentaires, par exemple en prévoyant que, dans tout ou partie des paires d'outils de marquage, il est associé à l'outil de marquage extérieur au moins un organe d'amorçage du pliage du rabat correspondant de la caisse ;
  • par une adaptation sur tout type de machine, par exemple une machine qui traiterait les caisses en position couchée, l'ensemble des outils de marquage étant dans ce cas approché par un mouvement horizontal et non plus vertical, ou encore une machine qui, avant fermeture des caisses, introduirait de façon automatique dans celles-ci des sacs gonflés d'air destinés au calage des produits emballés, le volume de ces sacs de calage étant lui-même adaptable à la hauteur des produits emballés.
One would not depart from the scope of the invention, as defined in the appended claims:
  • by modifications of detail, for example concerning the shape of the marking blades;
  • by the use of all equivalents, in particular by replacing the pneumatic cylinders for actuating the marking blades with hydraulic cylinders, or by mechanical actuators;
  • by the addition of all complementary functions, for example by providing that, in all or part of the pairs of marking tools, it is associated with the external marking tool at least one folding initiation member of the corresponding flap of the box ;
  • by adapting to any type of machine, for example a machine that would treat the boxes in supine position, the set of marking tools being in this case approached by a horizontal movement and no longer vertical, or a machine which before closing crates, automatically introduce into them air bags inflated for the wedging of packaged products, the volume of these dunnage bags itself being adaptable to the height of the packaged products.

Claims (19)

Procédé pour la réalisation d'un emballage en carton, du genre caisse, de volume variable adapté à la hauteur (h) des produits (4) emballés dans chaque cas, le procédé prévoyant la formation de lignes de pliage (8) à la hauteur convenable, sur les quatre flancs (5, 6) de la caisse (2), pour délimiter des rabats supérieurs (9), puis le pliage de ces rabats (9) au-dessus du contenu de la caisse, caractérisé en ce que, dans l'étape de formation des lignes de pliage (8), effectuée après remplissage de la caisse (2) avec les produits à emballer, il est réalisé sur chaque flanc (5, 6) de cette caisse (2), pour chaque rabat (9), un marquage du côté intérieur de la caisse (2) et un autre marquage du côté extérieur de la caisse (2).Process for the production of a cardboard packaging, of the cashbox type, of variable volume adapted to the height (h) of the products (4) packaged in each case, the method providing for the formation of fold lines (8) at the height suitable, on the four sides (5, 6) of the box (2), to delimit the upper flaps (9), then the folding of these flaps (9) above the contents of the box, characterized in that , in the step of forming the folding lines (8), performed after filling the box (2) with the products to be packaged, it is made on each side (5, 6) of this box (2), for each flap (9), a marking on the inside of the box (2) and another marking on the outside of the box (2). Procédé de double marquage selon la revendication 1, caractérisé en ce qu'il est prévu un léger décalage en hauteur (1), entre d'une part le marquage réalisé du côté intérieur de la caisse (2) et d'autre part le marquage réalisé du côté extérieur de la caisse (2), ceci sur chaque flanc (5, 6) de la caisse (2).Double marking process according to Claim 1, characterized in that a slight height difference (1) is provided between the marking on the inner side of the box (2) and the marking on the other hand. made on the outside of the body (2), this on each side (5, 6) of the body (2). Procédé de double marquage selon la revendication 2, caractérisé en ce que le marquage extérieur est réalisé légèrement plus haut que le marquage intérieur.Double marking process according to claim 2, characterized in that the external marking is made slightly higher than the internal marking. Procédé de double marquage selon l'une quelconque des revendications 1 à 3, caractérisé en ce que, tant pour le marquage intérieur que pour le marquage extérieur, il est prévu un décalage en hauteur, égal sensiblement à l'épaisseur du carton, entre d'une part le marquage des flancs longitudinaux (5) et d'autre part le marquage des flancs transversaux (6) de la caisse (2).Double marking process according to one of Claims 1 to 3, characterized in that , both for the internal marking and for the external marking, there is provided a height offset, substantially equal to the thickness of the carton, between firstly the marking of the longitudinal flanks (5) and secondly the marking of the transverse flanks (6) of the box (2). Procédé de double marquage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les marquages réalisés intérieurement et extérieurement sont des marquages continus.Double marking method according to any one of claims 1 to 4, characterized in that the markings made internally and externally are continuous markings. Procédé de double marquage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les marquages réalisés intérieurement et extérieurement sont des marquages discontinus.Double marking process according to any one of claims 1 to 4, characterized in that the markings made internally and externally are discontinuous markings. Procédé de double marquage selon la revendication 5 ou 6, caractérisé en ce que les marquages comprennent une pré-découpe de la feuille externe du carton, sur le côté extérieur de la caisse (2).Double marking method according to claim 5 or 6, characterized in that the markings comprise a pre-cutting of the outer sheet of the cardboard on the outside of the box (2). Procédé de double marquage selon l'une quelconque des revendications 5 à 7, caractérisé en ce que, pour chaque flanc (5, 6) de la caisse, le marquage est moins appuyé au centre de ce flanc, et plus appuyé dans les parties latérales du même flanc.Double marking method according to any one of claims 5 to 7, characterized in that , for each side (5, 6) of the body, the marking is less supported in the center of this side, and more supported in the lateral parts from the same side. Dispositif pour la réalisation d'un emballage en carton, du genre caisse, de volume variable adapté à la hauteur (h) des produits (4) emballés dans chaque cas, le dispositif mettant en oeuvre le procédé de « double marquage » selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'il comprend, pour le marquage intérieur et extérieur des quatre flancs (5, 6) d'une caisse en carton, en vue de la délimitation des rabats supérieurs (9), un ensemble de quatre paires d'outils de marquage (20, 21), attribuées respectivement aux quatre flancs (5, 6) de la caisse (2), chaque paire d'outils comprenant un outils de marquage intérieur (20), apte à être descendu dans la caisse (2) à une hauteur convenable, et un outil de marquage extérieur (21), apte à être amené extérieurement contre le flanc (5, 6) correspondant de la caisse (2), sensiblement à la même hauteur que l'outil de marquage intérieur (20).Device for the production of a cardboard packaging, of the cashbox type, of variable volume adapted to the height (h) of the products (4) packaged in each case, the device implementing the "double marking" method according to the any one of claims 1 to 8, characterized in that it comprises, for the internal and external marking of the four sides (5, 6) of a cardboard box, for the delimitation of the upper flaps (9), a set of four pairs of marking tools (20, 21) respectively assigned to the four sidewalls (5, 6) of the box (2), each pair of tools comprising an inner marking tool (20), adapted to be lowered into the box (2) at a suitable height, and an external marking tool (21), able to be brought externally against the corresponding side (5, 6) of the box (2), substantially at the same height as the box (2). internal marking tool (20). Dispositif de double marquage selon la revendication 9, caractérisé en ce que les outils de marquage (20, 21), tant intérieurs qu'extérieurs, sont constitués par des lames dentées ou ondulées, guidées perpendiculairement aux flancs (5, 6) correspondants de la caisse (2).Double-marking device according to claim 9, characterized in that the marking tools (20, 21), both internal and external, consist of toothed or corrugated blades, guided perpendicular to the corresponding flanks (5, 6) of the cashier (2). Dispositif de double marquage selon la revendication 10, caractérisé en ce que les lames de marquage (20, 21) sont déplaçables, chacune dans un plan perpendiculaire au flanc (5, 6) correspondant de la caisse en carton, au moyen d'actionneurs pneumatiques (23, 27) ou hydrauliques, ou encore au moyen d'actionneurs mécaniques, électriques ou électromécaniques.Double marking device according to claim 10, characterized in that the marking blades (20, 21) are displaceable, each in a plane perpendicular to the corresponding side (5, 6) of the cardboard box, by means of pneumatic actuators (23, 27) or hydraulic, or by means of mechanical, electrical or electromechanical actuators. Dispositif de double marquage selon la revendication 11, caractérisé en ce que les quatre outils de marquage intérieurs (20) sont déplaçables au moyen d'un actionneur central commun (23), du genre vérin, relié par des moyens de transmission mécaniques tels que des biellettes (25) à chacun des quatre outils de marquage intérieurs (20).Double marking device according to claim 11, characterized in that the four internal marking tools (20) are displaceable by means of a common central actuator (23), of the jack type, connected by mechanical transmission means such as links (25) to each of the four interior marking tools (20). Dispositif de double marquage selon l'une quelconque des revendications 9 à 12, caractérisé en ce que, dans chaque paire d'outils de marquage, l'outil de marquage extérieur (21) est légèrement décalé vers le haut par rapport à l'outil de marquage intérieur (20).Double marking device according to one of Claims 9 to 12, characterized in that in each pair of marking tools the outer marking tool (21) is slightly upwards with respect to the tool interior marking (20). Dispositif de double marquage selon l'une quelconque des revendications 9 à 13, caractérisé en ce qu'il est prévu un décalage en hauteur entre les outils de marquage (20, 21) disposés dans le sens longitudinal, d'une part, et les outils de marquage (20, 21) disposés dans le sens transversal, d'autre part.Double marking device according to one of Claims 9 to 13, characterized in that a height offset is provided between the longitudinally arranged marking tools (20, 21) and the marking tools (20, 21) arranged in the transverse direction, on the other hand. Dispositif de double marquage selon l'une quelconque des revendications 9 à 14, caractérisé en ce que, dans tout ou partie des paires d'outils de marquage, il est associé à l'outil de marquage extérieur (21) au moins un organe d'amorçage du pliage du rabat (9) correspondant de la caisse (2).Double marking device according to any one of claims 9 to 14, characterized in that , in all or part of the pairs of marking tools, it is associated with the external marking tool (21) at least one member of initiating the folding of the corresponding flap (9) of the body (2). Dispositif de double marquage selon l'une quelconque des revendications 9 à 15, caractérisé en ce que l'ensemble des quatre paires d'outils de marquage (20, 21) est porté par une ossature commune (18), déplaçable verticalement qui, par abaissement, est apte à venir coiffer intérieurement et extérieurement la caisse (2), pour positionner les outils de marquage intérieurs (20) et extérieurs (21) à une hauteur convenable relativement à cette caisse (2).Double marking device according to one of Claims 9 to 15, characterized in that all four pairs of marking tools (20, 21) are supported by a vertically displaceable common frame (18) which lowering, is adapted to come to cap internally and externally the body (2), to position the inner marking tools (20) and outer (21) at a suitable height relative to this body (2). Dispositif de double marquage selon l'une quelconque des revendications 9 à 16, caractérisé en ce qu'il comprend un plateau élévateur, disposé sous les outils de marquage (20, 21) et prévu pour surélever la caisse (2), au moment de l'opération de marquage des flancs (5, 6) de cette caisse (2).Double marking device according to any one of claims 9 to 16, characterized in that it comprises a lifting plate, arranged under the marking tools (20, 21) and intended to raise the box (2), at the moment of the operation of marking the flanks (5, 6) of this box (2). Dispositif de double marquage selon l'une quelconque des revendications 9 à 17, caractérisé en ce qu'il constitue un poste (14) intermédiaire d'une machine dans laquelle les caisses avancent sur un convoyeur horizontal (12), la machine comprenant successivement, le long du convoyeur (12), un poste (13) de coupe des caisses (2) le long de leurs arêtes verticales, sur une certaine hauteur, le poste (14) de double marquage des flancs (5, 6) des caisses (2), intérieurement et extérieurement, un poste (15) de pliage et de pressage des rabats (9), et un poste (16) de pose de coiffes de fermeture (11) sur le sommet des caisses (2).Double marking device according to any one of claims 9 to 17, characterized in that it constitutes an intermediate station (14) of a machine in which the boxes advance on a horizontal conveyor (12), the machine comprising successively, along the conveyor (12), a station (13) for cutting the boxes (2) along their vertical edges, over a certain height, the station (14) for double marking of the sidewalls (5, 6) of the boxes ( 2), internally and externally, a station (15) for folding and pressing the flaps (9), and a station (16) for fitting closure caps (11) on the top of the boxes (2). Dispositif de double marquage selon la revendication 18, caractérisé en ce que la machine, incorporant ce dispositif, comprend encore un poste pour la mise en place, dans les caisses (2), de sacs gonflables destinés au calage des produits emballés.Double marking device according to claim 18, characterized in that the machine, incorporating this device, further comprises a station for the introduction in the boxes (2) of inflatable bags for the wedging of packaged products.
EP06356146A 2006-03-06 2006-12-14 Method and device for making packages comprising cardboard boxes of variable volume Not-in-force EP1832413B1 (en)

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FR0601969A FR2898072B1 (en) 2006-03-06 2006-03-06 METHOD AND DEVICE FOR PRODUCING A VARIABLE VOLUME CARDBOARD PACKAGING

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AT (1) ATE440720T1 (en)
DE (1) DE602006008737D1 (en)
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WO2013182845A1 (en) * 2012-06-08 2013-12-12 Linkx Systems Limited Container sizing method and system
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CN106003827A (en) * 2016-06-24 2016-10-12 江门市合益印刷有限公司 Multifunctional quick sample making machine
EP3284687B1 (en) * 2016-08-16 2020-11-04 Quadient Technologies France System and method for automatically packaging items varying in size and number for shipment
CN107499596A (en) * 2017-09-22 2017-12-22 深圳市鑫锐华自动化设备有限公司 A kind of cartoning sealing machine
CN112591174A (en) * 2020-11-27 2021-04-02 兰剑智能科技股份有限公司 Full-automatic carton packaging machine
CN112591174B (en) * 2020-11-27 2022-06-24 兰剑智能科技股份有限公司 Full-automatic carton packaging machine
IT202100019493A1 (en) * 2021-07-22 2023-01-22 Cmc Spa APPARATUS FOR ADAPTING BOXES TO THE CONTENT, SYSTEM AND METHOD OF PACKAGING
WO2023002396A1 (en) * 2021-07-22 2023-01-26 C.M.C. S.P.A. An apparatus for adapting boxes to contents, a packaging system and method
CN113580672A (en) * 2021-08-09 2021-11-02 立讯智造(浙江)有限公司 Wrapping paper pre-folding equipment
CN113580672B (en) * 2021-08-09 2023-08-01 立讯智造(浙江)有限公司 Pre-folding packaging paper equipment

Also Published As

Publication number Publication date
FR2898072A1 (en) 2007-09-07
EP1832413B1 (en) 2009-08-26
DE602006008737D1 (en) 2009-10-08
ATE440720T1 (en) 2009-09-15
ES2332325T3 (en) 2010-02-02
PL1832413T3 (en) 2010-06-30
FR2898072B1 (en) 2009-06-05

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