EP2240316B1 - Method and device for making boxes from a set of blanks - Google Patents

Method and device for making boxes from a set of blanks Download PDF

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Publication number
EP2240316B1
EP2240316B1 EP09719964A EP09719964A EP2240316B1 EP 2240316 B1 EP2240316 B1 EP 2240316B1 EP 09719964 A EP09719964 A EP 09719964A EP 09719964 A EP09719964 A EP 09719964A EP 2240316 B1 EP2240316 B1 EP 2240316B1
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EP
European Patent Office
Prior art keywords
cut
cut shape
shapes
shape
fold lines
Prior art date
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Active
Application number
EP09719964A
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German (de)
French (fr)
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EP2240316A1 (en
Inventor
Didier Desertot
Thierry Colas
Eric Schuster
Gérard Mathieu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otor SA
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Otor SA
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Priority to PL09719964T priority Critical patent/PL2240316T3/en
Publication of EP2240316A1 publication Critical patent/EP2240316A1/en
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Publication of EP2240316B1 publication Critical patent/EP2240316B1/en
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Classifications

    • 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
    • B31B50/14—Cutting, e.g. perforating, punching, slitting or trimming
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D1/00—Multiple-step processes for making flat articles ; Making flat articles
    • B31D1/0043—Multiple-step processes for making flat articles ; Making flat articles the articles being box parts not otherwise provided for
    • B31D1/005—Multiple-step processes for making flat articles ; Making flat articles the articles being box parts not otherwise provided for making bottoms or caps
    • 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
    • B31B50/02—Feeding or positioning 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
    • B31B2105/002—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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/044—Feeding sheets or blanks involving aligning
    • 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
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/04—Feeding sheets or blanks
    • B31B50/06—Feeding sheets or blanks from stacks
    • B31B50/066—Feeding sheets or blanks from stacks from above a magazine
    • 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
    • B31B50/02—Feeding or positioning sheets, blanks or webs
    • B31B50/10—Feeding or positioning webs
    • B31B50/104—Feeding or positioning webs involving aligning
    • 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 a method for producing a polygonal box packaging box from at least two blanks of material of cardboard sheet or corrugated cardboard, namely a first cut forming the bottom of the box and a second cut comprising at least four panels interconnected by parallel fold lines, forming the cap of the box.
  • It also relates to a device for producing such a packaging box.
  • a system consisting in coating a first cut around a mandrel, then, after gluing, a second cut that is then coated on the first cut.
  • Such a coating in two stages on the mandrel is complicated and can not be performed at a high rate (greater than twenty cases per minute).
  • Another solution is to glue the two blanks one on the other before coating, the second blank being placed directly on the first blank from a top store.
  • the present invention overcomes these disadvantages.
  • the boxes obtained have a high rigidity and excellent resistance to compression and destruction.
  • the method and the device according to the invention thus meet the demand of large-scale retailers, who have been looking for many years for manufacturing processes for packaging that can be directly placed on the shelves of shelves and that allow good gripping of the product, starting from traditional cuts and this, so simple without asking for too delicate steps of implementation.
  • the invention has particularly advantageous results with the cuts, the lower part of the fold lines of the second cutout is cut and / or crushed to facilitate the subsequent coating without slipping on the first cut.
  • the invention proposes in particular a method for producing a polygonal box packaging box from at least two blanks of material of cardboard sheet or corrugated cardboard, namely a first cut forming the bottom of said box, and a second cutout comprising at least four panels respectively connected to each other by third parallel fold lines, having a bottom free edge devoid of flap on the bottom side, said second cut forming a cap for said box, characterized in what simultaneously removing from two adjacent magazines and depositing said cutouts on two parallel tracks, namely a first path for the first cut and a second path for the second cut, said blanks are transferred to said tracks flat by guiding them substantially with lateral play between two rails by a system with cleats, to come to a longitudinal stop at an assembly station, in longitudinal position determined for each of the cuts, said first cut is glued during its transfer towards its longitudinal stop position, the first and second cut-outs are wedged respectively to give them an exact lateral reference position, we seize, transfer laterally and place the second cut on the first cut and
  • the invention also proposes a device for implementing the method as described above.
  • the device further comprises a forming station comprising a mandrel and means winding cutouts around the mandrel to form the box.
  • the exhaust means are means for retraction down the cleats.
  • the escape means of the cleats are means arranged to lift the cutout above said cleats.
  • the vertical pressure locking means of the first cut comprises a beveled cleat towards the cuts actuated by jack.
  • the means for retracting the cleats downwards comprise means for pivoting them around an axis located above the plane of the first lane, which allows a clearance without hang the cardboard.
  • the means for capturing and transferring the second blank to the first blank include gripping means by suction cups actuated vertically by linear electric motor cylinders at a translation speed of between 4m / s or 6m / s. This results in accelerations that can reach and / or be greater than 7g.
  • the device described above is characterized in that the first cut comprising a sequence of at least four main shutters terminated by a fastening tab, interconnected by first fold lines parallel to each other, said sequence of shutters forming the outer walls of the base of the box and being connected on one side to a series of flaps by second fold lines perpendicular to said first folding lines, the gripping and transferring means are arranged to place the third fold lines of the second cut substantially aligned with the first fold lines of the first cut, and in that the means for applying the second cut to the first are arranged to glue the two panels to the two non-adjacent flaps facing each other.
  • the figure 1 shows a set of cuts 1 usable in a more particularly advantageous manner with the invention.
  • first cutout 2 forming the bottom of the box and a second cutout 3 comprising four rectangular panels 4, 5, 6, 7 and a gluing tab 8, interconnected by third parallel fold lines 9.
  • the second cutout 3 comprises, on one side, a set of rectangular flaps 10 intended to form the top of the box, once it has been formed, by gluing on each other after filling, and comprises a free edge 11 of the other side, devoid of flap, in a manner known in itself.
  • the first cut 2 suitable for forming a belt intended to constitute a display-type bottom, comprises four main rectangular flaps 12, 13, 14, 15 forming the outer walls of the base of the box. They are interconnected by first folding lines 16 parallel to each other, and are terminated, at the opposite end relative to the tongue 8 of the second cutout, by a gluing tab 17.
  • the sequence of flaps comprises a free edge 18 on the side of the second cut, and a series of rectangular flaps 19 on the opposite side, connected to said flaps by second fold lines 20 perpendicular to the first lines 16.
  • the first fold lines 16 and the third fold lines 9, are when the two cuts will be arranged opposite to be glued one on the other substantially aligned.
  • substantially aligned is meant any embodiment that will allow a subsequent coating cut around a mandrel, either due to the presence of indentations in the lower part of the second cut, or because of a shift between first fold line and third folding line, more and more significant shift as the coating, to confirm the catch of the games of the external cut with respect to the inner cut, or in a more advantageous embodiment of the invention allowing the highest rates, by a precise superposition, in which case at least two out of three of the third fold lines of the second cut are in the lower part 21 cut or crushed opposite the corresponding first folding line.
  • cut portion is meant a portion incised or slotted in a through manner for example by a cutting blade or knife, from one side to the other, without removal of material, or in an embodiment substantially without element of material (that is to say say with a slot of less than one or two millimeters wide), unlike the indentations of the prior art.
  • crushing is meant chewing the groove of the fold line.
  • the other side 18 of the first cut is in turn devoid of flap.
  • Two of the flaps for example the intermediate flap 13 and the end flap 15 are, for their glue, for example by sizing lines with the glue called "hot melt” 22, in a manner known per se.
  • packaging usable with the invention will use a collage prohibiting the relative movement of the cuts relative to each other, thanks to the superposition mode more particularly described above, favorable to large cadences.
  • corrugated cardboard cuttings for example 2 to 3 mm thick, but this process allows, surprisingly and thanks to the combination of the steps that it uses, the use of cardboard of low thickness and low weight, for example less than 100 gr.
  • the second cutout 3 is, after gluing flaps 13 and 15, applied on the first cut by aligning the free edges 11 and 18, and superimposing the areas 21 with the first fold lines 16, then brought under the mandrel 23 to then be coated (arrow F) before the gluing tabs 8 and 17 , themselves previously glued, or folded successively on the outer face vis-à-vis the panel to the adjacent flap to allow the final formation of the box, the bottom of the tongue 8 being cut to allow the passage of the tongue 17 .
  • It comprises two adjacent magazines 25 and 26 at an angle, known in themselves (cf. figure 5 ) respectively for storing first cuts 2 and second cuts 3.
  • Gripping means 27, 28 for cutting from said "flip-flop" type suction cups are provided to feed the two horizontal parallel tracks 29, 30 for flat transfer of the blanks to an assembly station 31, namely a first path 29 for the first cut and a second path 30 for the second cut, each path comprising a drive system 32, 33 cutouts, cleats, as will be described more precisely below.
  • the device comprises longitudinal stop means 34, 35 at the assembly station of each of the first and second cutouts at their respective positions, formed by retractable catches actuated by an electric jack, between a position under the plane of the track, and a high abutment position, means 36 for gluing (see figure 6 ) of the first cut during its transfer comprising nozzles 37 for applying hot melt glue down, supplied by insulated pipes 38, mounted on a carriage 39 adjustable x, y.
  • the device (cf. figure 3 ) further comprises guide rails 40, 41, 42, 43, respectively cutouts 2 and 3 during their transfer, on the tracks 29, 30, and means 44 wedging lateral abutment of the first blank 2 and for the second cut (not shown) to give them an exact lateral reference position against a respective reference guide rail (40 or 42).
  • the wedging means 44 will be described more precisely below.
  • the device also comprises means 50 for capturing and laterally transferring by suction cup 51 of the second cutout 3 to place it on the first cut 2 previously indexed, which will be specified later with reference to the figure 7 .
  • the device 24 further comprises (cf. figure 4 ), retraction means 60 and (cf. figure 8 ) application means 70 of the first blank on the second blank.
  • the latter comprises two adjacent storing magazines 25 and 26 and two parallel tracks 29 and 30 for transferring the first blank 2 and the second blank 3 to the assembly station 31 itself.
  • the tracks 29 and 30 are two parallel tracks comprising means for gripping and moving the blanks by the drive systems 32, 33 comprising endless belts C, for example actuated by stepper motor on which are adjustable in distance from the cleats 61 for the first cuts and 62 for the second cuts, which allow the displacement of said cuts by pushing them between the rails of the guide 40, 41 for the first cuts and 42, 43 for the second cuts.
  • These guides are made in a conventional manner, with a slight clearance taking into account the manufacturing tolerances of the cuts, in particular related to the risk of warping and / or to variations in ambient temperature and humidity, leading to deformation of the cardboard.
  • the device 24 comprises at the end of the two channels 29, 30, the longitudinal stop means 34 and 35 which will allow a precise longitudinal reference position of the two cuts.
  • the longitudinal locking means 44 comprise a cleat 63 movable in the plane of the track 29, the stroke of which will be regulated by means of an electric jack for exerting a flexible pressure on the edge of the carton 64, thanks to example to a pressurizing spring 65.
  • the means 44 make it possible to give an exact lateral reference position to the first blank 2.
  • the tabs 63 and 66 are for example also retractable downwards to facilitate subsequent removal of the cuts.
  • means of retraction are constituted by levers 66 which will pivot about an axis 67 parallel to the plane of the transfer paths disposed above said planes (cf. figure 4 ), for example at a distance d.
  • This allows (see arrow 68) the retraction of the cleats without the risk of hanging the edge 18 of the blank 2 of the first cut before docking.
  • cleat 69 of beveled shape to the cut, actuated by electric jack, which will descend with a slight shift in time relative to the rise of the longitudinal locking cleat 34, to allow blocking the cutting during the clearing of the cleats 61, to avoid any recoil of the cut, whose exact position could be distorted before the precise introduction of the second cut on the first cut.
  • the figure 6 shows the sizing means 36 used in a device according to the invention, known in themselves. These sizing means allow through nozzles 37 the projection of glue jets from above on the flaps 13 and 15, as well as on the tabs 8 and 17, first and second cutouts for example in the form of lines like shown on the figure 1 .
  • a precise device makes it possible to position the glue lines by adjusting the projectors according to the size of the cuts, the machine being of course flexible to treat first and second cuts of quite different size, and up to very small sizes ( cf. figure 7 ).
  • This figure shows, more precisely, the means 50 for transferring the second blank to the first blank.
  • the means 50 comprise two trolleys, namely a first trolley 52 having four suckers 51 integral with each other, and a second trolley 53 adjustable in distance relative to the first trolley, comprising in turn two suckers 51.
  • the suction cups 51 are actuated vertically by jacks 54 with a linear electric motor of the type manufactured by the Swiss company LINMOT. They are fragile cylinders, very sensitive to the slightest side impact, but of exactly precise and fast operation and of a very light weight.
  • the carriages are mounted, for example, by means of a disengageable machine device with a spring-loaded damper on a drive system 55 comprising a belt 56 internal to a casing 57, forming a support and guide beam driven by pulleys 58 actuated by a motor 59 in a manner known per se.
  • the carriages are secured to the belt 56, for example by clamping jaws integral with the train of carriages whose spacing has been previously adjusted.
  • a clamping spring actuation device known in itself, allows the operation of the jaws, opening / closing.
  • the figure 8 illustrates the means 70 for applying the second blank to the first blank. They comprise a system 71 with double cylinders 72 for raising and lowering an application bar 73 of adjustable length, arranged to exert the pressure of a cutout on the other, of Precise way and allowing a good bursting of the glue during the compression.
  • the figures 9 and 10 show, in turn, the elements of the device for transferring the set of cuts thus glued to the forming station.
  • These include a belt 81 which brings the cuts under a set 82 of the flip / flop type provided with four sets 83 of two suckers 84, the carpet moving vertically (arrow 85), to come dock the suction cups, which allows to minimize their wear by friction.
  • the assembly 82 is then actuated to take the cutouts and by a translational rotation movement 86, bring them horizontally on the belt 87 for moving the assembly under the mandrel 23.
  • the assembly is then brought under the mandrel, in a manner known per se to the forming station 90 before forming the package 91 as shown in FIG. figure 9 .
  • the first and second cutouts which are taken up by the catches, are moved and deposited on their respective tracks and moved to their longitudinal stop position.
  • the first cut is glued during the transfer.
  • the second cut 3 is grasped, by actuating the jacks with the precisely regulated stroke downwards, then the suction cups 51 are emptied.
  • said second cut-out is brought in front of the first cut. cut 2, which is lowered, by retracting the tabs 61.
  • the second cut is then placed precisely vis-à-vis by aligning the fold lines, the first cut being retained by a stopper 69 preventing the latter from starting again.
  • suction cups are released and the carriages start instantly to resume the next second cut, while the bar of compression and bursting of the glue is lowered on the cutouts.
  • the stoppers 69 and 34 of longitudinal stop fade and release the set of cuts, at the same time as the bar goes back.
  • the assembly is brought by being pushed by the tabs in the recovery position on a table, which raises said assembly, at the same time is brought in facing a flip / flop recovery bar.
  • the box is wrapped around the mandrel, here again in known manner, by folding, before being ejected.

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Abstract

This is a method and device for making a packaging box from two blanks (2, 3), wherein blanks are taken simultaneously from two adjacent stacks (25, 26) and placed on two parallel tracks (29, 30), the blanks are transferred flat until butted longitudinally to an assembly station, the first blank is glued on its way to the longitudinal abutment position, the first and second blanks are butted laterally into their respective positions to give them an exact lateral reference position, they are grasped, and transferred laterally, and the second blank is placed on the first blank which is thus indexed, escaping the drivers (61) of the first track (29) when the second blank is placed against the first blank, but clamped by vertical pressure. The second blank is then applied to the first blank to glue them together in their respective defined longitudinal positions, and the resulting set of blanks is then transferred to an erecting station where the box is erected by rolling the blanks around a core.

Description

La présente invention concerne un procédé pour la réalisation d'une boîte d'emballage à section polygonale à partir d'au moins deux découpes de matière en feuille de carton ou carton ondulé, à savoir une première découpe formant le fond de la boîte et une deuxième découpe comportant au moins quatre panneaux reliés entre eux par des lignes de pliage parallèles, formant la coiffe de la boîte.The present invention relates to a method for producing a polygonal box packaging box from at least two blanks of material of cardboard sheet or corrugated cardboard, namely a first cut forming the bottom of the box and a second cut comprising at least four panels interconnected by parallel fold lines, forming the cap of the box.

Elle concerne également un dispositif pour la réalisation d'une telle boîte d'emballage.It also relates to a device for producing such a packaging box.

Elle trouve une application particulièrement importante bien que non exclusive dans le domaine des boîtes renforcées en carton ondulé, ainsi que dans le domaine des boîtes ou emballages de carton ondulé prêt à vendre, c'est-à-dire destinés à rester au moins en partie dans les linéaires de supermarché.It finds a particularly important, although not exclusive, application in the field of reinforced corrugated boxes, as well as in the field of corrugated boxes or corrugated packaging ready to sell, that is to say intended to remain at least partly in the supermarket shelves.

On connaît déjà des procédés et dispositifs de fabrication d'emballage en deux parties obtenues à partir de deux flans ou découpes. Voir par exemple US 2004/214704 .Methods and devices for manufacturing two-part packaging obtained from two blanks or blanks are already known. See for example US 2004/214704 .

Ces emballages en deux pièces autorisent une désolidarisation ultérieure, une partie de l'emballage restant alors comme présentoir.These two-piece packs allow a subsequent separation, part of the packaging then remaining as a display.

On connaît ainsi un système consistant à enrober une première découpe autour d'un mandrin, puis, après encollage, une deuxième découpe que l'on enrobe alors sur la première découpe.A system is thus known consisting in coating a first cut around a mandrel, then, after gluing, a second cut that is then coated on the first cut.

Un tel enrobage en deux temps sur le mandrin se révèle compliqué et ne peut être effectué à forte cadence (supérieure à vingt caisses par minute).Such a coating in two stages on the mandrel is complicated and can not be performed at a high rate (greater than twenty cases per minute).

Une autre solution consiste à coller les deux découpes l'une sur l'autre avant enrobage, la deuxième découpe étant placée directement sur la première découpe à partir d'un magasin supérieur.Another solution is to glue the two blanks one on the other before coating, the second blank being placed directly on the first blank from a top store.

L'utilisation d'un tel magasin nécessite un dispositif de dépose extrêmement précis, incompatible avec de fortes cadences, et demande des réglages délicats, d'où l'utilisation obligatoire de système de cames et de bras nécessaire à une parfaite répétitivité , et de ce fait plus lent.The use of such a store requires an extremely precise removal device, incompatible with high rates, and requires delicate adjustments, hence the mandatory use of cam and arm system necessary for perfect repeatability, and this is slower.

La présente invention permet de pallier ces inconvénients.The present invention overcomes these disadvantages.

Elle vise en effet à fournir un procédé et un dispositif de réalisation d'emballages répondant mieux que ceux antérieurement connus aux exigences de la pratique notamment en ce qu'elle permet un montage efficace et rapide en automatique des boîtes à des cadences extrêmement rapides, supérieures à quarante coups par minute, allant jusqu'à de l'ordre de cinquante coups par minute, ce qui n'a jamais été réalisé à ce jour avec des emballages bipartites.It aims to provide a method and a device for producing packaging better than those previously known to meet the requirements of the practice in particular that it allows an efficient and fast automatic assembly of boxes at extremely fast rates, higher at forty beats per minute, up to fifty strokes per minute, which has never been achieved to date with bipartite packaging.

Avec le procédé et le dispositif suivant l'invention, les boîtes obtenues présentent une grande rigidité et une excellente résistance à la compression et à la destruction.With the method and the device according to the invention, the boxes obtained have a high rigidity and excellent resistance to compression and destruction.

Le procédé et le dispositif selon l'invention répondent ainsi à la demande de la grande distribution, qui recherche depuis de nombreuses années des procédés de fabrication d'emballages directement plaçables sur les étagères de linéaires et autorisant une bonne préhension du produit, à partir de découpes traditionnelles et ce, de façon simple sans demander d'étapes trop délicates de mise en oeuvre.The method and the device according to the invention thus meet the demand of large-scale retailers, who have been looking for many years for manufacturing processes for packaging that can be directly placed on the shelves of shelves and that allow good gripping of the product, starting from traditional cuts and this, so simple without asking for too delicate steps of implementation.

Il est ainsi possible d'obtenir un emballage ne nécessitant pas de découpes sophistiquées et/ou de colle particulière, et ce tout en conservant des cadences importantes, même avec de faibles grammages.It is thus possible to obtain a package that does not require sophisticated cuttings and / or particular glue, and this while maintaining high speeds, even with low weights.

L'invention présente des résultats particulièrement avantageux avec les découpes dont la partie inférieure des lignes de pliage de la deuxième découpe est découpée et/ou écrasée pour faciliter l'enrobage ultérieur sans glissement, sur la première découpe.The invention has particularly advantageous results with the cuts, the lower part of the fold lines of the second cutout is cut and / or crushed to facilitate the subsequent coating without slipping on the first cut.

Mais d'autres découpes sont également envisageables, comme on le verra ci-après.But other cuts are also possible, as will be seen below.

Dans ce but, l'invention propose notamment un procédé pour la réalisation d'une boîte d'emballage à section polygonale à partir d'au moins deux découpes de matière en feuille de carton ou carton ondulé, à savoir une première découpe formant le fond de ladite boîte, et une deuxième découpe comportant au moins quatre panneaux reliés respectivement entre eux par des troisièmes lignes de pliage parallèles, comportant un bord libre inférieur dénué de rabat du côté du fond, ladite deuxième découpe formant une coiffe pour ladite boîte, caractérisé en ce que
on dépile simultanément à partir de deux magasins adjacents et on dépose lesdites découpes sur deux voies parallèles, à savoir une première voie pour la première découpe et une deuxième voie pour la deuxième découpe,
on transfert lesdites découpes sur lesdites voies à plat en les guidant sensiblement avec un jeu latéral entre deux rails par un système d'entraînement à taquets, jusqu'à venir en butée longitudinale à un poste d'assemblage, en position longitudinale déterminée pour chacune des découpes,
on encolle ladite première découpe pendant son transfert vers sa position de butée longitudinale,
on cale en butée latérale respectivement les première et deuxième découpes pour leur donner une position de référence latérale exacte,
on saisit, on transfert latéralement et on place la deuxième découpe sur la première découpe ainsi indexée en échappant les taquets de la première voie lors de l'accostage de la deuxième découpe sur la première, tout en la maintenant par blocage en pression verticale,
on applique alors la deuxième découpe sur la première découpe, pour coller l'une sur l'autre dans leurs positions longitudinales respectivement déterminées,
puis on transfert l'ensemble de découpes ainsi constitué à un poste de formage où on forme la boîte par enroulement des découpes autour d'un mandrin.For this purpose, the invention proposes in particular a method for producing a polygonal box packaging box from at least two blanks of material of cardboard sheet or corrugated cardboard, namely a first cut forming the bottom of said box, and a second cutout comprising at least four panels respectively connected to each other by third parallel fold lines, having a bottom free edge devoid of flap on the bottom side, said second cut forming a cap for said box, characterized in what
simultaneously removing from two adjacent magazines and depositing said cutouts on two parallel tracks, namely a first path for the first cut and a second path for the second cut,
said blanks are transferred to said tracks flat by guiding them substantially with lateral play between two rails by a system with cleats, to come to a longitudinal stop at an assembly station, in longitudinal position determined for each of the cuts,
said first cut is glued during its transfer towards its longitudinal stop position,
the first and second cut-outs are wedged respectively to give them an exact lateral reference position,
we seize, transfer laterally and place the second cut on the first cut and indexed by escaping the tabs of the first path when docking the second cut on the first, while maintaining it by locking in vertical pressure,
the second cut is then applied to the first cut, to glue one on the other in their respective longitudinal positions,
then the set of cuts thus formed is transferred to a forming station where the box is formed by winding the blanks around a mandrel.

Dans des modes de réalisation particuliers, on a de plus recours à l'une et/ou à l'autre des dispositions suivantes :

  • pour échapper les taquets de la première voie, on soulève la première découpe au-dessus des dits taquets ;
  • pour échapper les taquets de la première voie, on escamote lesdits taquets vers le bas ;
  • pour escamoter les taquets de la première voie, on pivote les taquets d'entraînement de ladite première découpe autour d'un axe situé au dessus du plan de la première voie.
In particular embodiments, one and / or the other of the following provisions is also used:
  • to escape the cleats of the first lane, the first cut is raised above the said cleats;
  • to escape the cleats of the first path, said cleats are retracted downward;
  • to retract the tabs of the first path, pivots the drive tabs of said first cut around an axis located above the plane of the first path.

Une telle disposition autorise leur dégagement sans accrocher le carton ;

  • on exerce le blocage en pression verticale de la première découpe par le biais d'un taquet biseauté vers les découpes actionné verticalement ;
  • on amène la deuxième découpe sur la première découpe par translation transversale, après préhension par ventouses aspirantes actionnées verticalement par vérins à moteur électrique linéaire, à une vitesse de translation comprise entre 4m/s et 6m/s ;
  • on transfert la deuxième découpe sur la première découpe par un équipage de deux chariots actionné par un système d'entraînement à clampage sur courroie(s) mobile(s) ;
  • pour transférer l'ensemble de découpes ainsi constitué au poste de formage, on soulève ledit ensemble pour l'amener en contact avec des ventouses de préhension d'un équipage de transfert de l'ensemble vers le poste de formage ;
  • la première découpe comportant une suite d'au moins quatre volets principaux terminée par une languette de fixation, reliés entre eux par des premières lignes de pliage parallèles entre elles, ladite suite de volets formant les parois externes de l'embase de la boîte, comportant d'un côté un bord libre supérieur dénué de rabat et étant reliée de l'autre côté à une suite de rabats par des deuxièmes lignes de pliage perpendiculaires aux dites premières lignes de pliage, on place la deuxième découpe sur la première découpe en alignant ou en alignant sensiblement le bord libre de la deuxième découpe avec les deuxièmes lignes de pliage de la première découpe et en superposant les troisièmes lignes de pliage par rapport aux premières lignes de pliage de la première découpe ;
  • la première découpe comportant un panneau central et quatre rabats périphériques latéraux, on place l'un des dits rabats préalablement encollé en vis à vis d'un volet de la deuxième découpe pour former une fois replié autour du mandrin un fond en forme de barquette.
Such a provision allows their release without hanging cardboard;
  • the vertical pressure blocking of the first cut is exerted by means of a beveled cleat towards the cuts actuated vertically;
  • the second cut is brought to the first cut by transverse translation, after gripping by suction cups actuated vertically by cylinders with linear electric motor, at a translation speed of between 4m / s and 6m / s;
  • transferring the second cutout on the first cut by a crew of two carriages operated by a belt clamping drive system (s) mobile (s);
  • to transfer the set of cuts thus formed to the forming station, said assembly is lifted to bring it into contact with suction cups of a transfer crew of the assembly to the forming station;
  • the first cut comprising a sequence of at least four main flaps terminated by a fastening tab, interconnected by first folding lines parallel to each other, said sequence of flaps forming the outer walls of the base of the box, comprising on one side an upper free edge devoid of flap and being connected on the other side to a series of flaps by second fold lines perpendicular to said first fold lines, the second blank is placed on the first blank by aligning or substantially aligning the free edge of the second cut with the second fold lines of the first cutting and superimposing the third fold lines with respect to the first fold lines of the first blank;
  • the first cutout comprising a central panel and four lateral peripheral flaps, one of said flaps previously glued is placed opposite a flap of the second cutout to form once folded around the mandrel a tray-shaped bottom.

L'invention propose également un dispositif permettant de mettre en oeuvre le procédé tel que décrit ci-dessus.The invention also proposes a device for implementing the method as described above.

Elle concerne aussi plus particulièrement un dispositif pour la réalisation d'une boîte d'emballage à section polygonale à partir d'au moins deux découpes de matière en feuille de carton ou carton ondulé, à savoir une première découpe formant le fond de ladite boîte, et une deuxième découpe comportant au moins quatre panneaux respectivement reliés entre eux par des troisièmes lignes de pliage parallèles, comportant un bord libre inférieur dénué de rabat du côté du fond, ladite deuxième découpe formant une coiffe pour ladite boîte, caractérisé en ce que il comporte
deux magasins adjacents de stockage respectivement des première et deuxième découpes,
des moyens de transfert desdites découpes à un poste d'assemblage comprenant
des moyens de préhension des découpes à partir desdits magasins,
deux voies parallèles de transfert à plat des dites découpes vers un poste d'assemblage, à savoir une première voie pour la première découpe et une deuxième voie pour la deuxième découpe, chaque voie comprenant un système d'entraînement à taquets,
des moyens de guidage de chacune desdites découpes, comprenant chacun deux rails de guidage des découpes sensiblement avec un jeu latéral jusqu'au poste d'assemblage, et
des moyens de butée longitudinale audit poste d'assemblage, en position longitudinale déterminée pour chacune des découpes,
des moyens d'encollage de la première découpe pendant son transfert, vers sa position longitudinale,
des moyens de calage en butée latérale des première et deuxième découpes pour leur donner une position respective de référence latérale exacte contre un des rails,
des moyens de saisie et de transfert latéralement par ventouses de la deuxième découpe pour la placer sur la première découpe ainsi indexée, dans leurs positions longitudinales et latérales respectives déterminées,
des moyens d'échappement des taquets de la première voie par rapport à la première découpe, lors de l'accostage de la deuxième découpe sur la première, et des moyens de blocage de ladite première découpe en pression verticale lors de l'échappement,
des moyens d'application de la deuxième découpe sur la première découpe, et des moyens de transfert de l'ensemble de découpes ainsi constitué à un poste de formage.It also relates more particularly to a device for producing a polygonal box packaging box from at least two blanks of material of cardboard sheet or corrugated cardboard, namely a first cut forming the bottom of said box, and a second cutout comprising at least four panels respectively connected to each other by third parallel fold lines, having a bottom free edge with no flap on the bottom side, said second cut forming a cap for said box, characterized in that it comprises
two adjacent storage magazines respectively of the first and second cutouts,
means for transferring said blanks to an assembly station comprising
means for gripping cuts from said magazines,
two parallel paths of flat transfer of said blanks to an assembly station, namely a first channel for the first blank and a second lane for the second blank, each lane comprising a lug drive system,
guide means for each of said cutouts, each comprising two cut guide rails substantially with a lateral clearance to the assembly station, and
longitudinal stop means at said assembly station, in longitudinal position determined for each of the cuts,
sizing means of the first cut during its transfer, towards its longitudinal position,
lateral abutment means of the first and second cutouts to give them a respective exact lateral reference position against one of the rails,
means for gripping and transferring laterally by suction cups of the second cutout to place it on the first cut thus indexed, in their respective longitudinal and lateral positions determined,
means for escaping the lugs of the first lane with respect to the first blank, during the docking of the second blank on the first, and means for blocking said first cut in vertical pressure during the escape,
means for applying the second blank to the first blank, and means for transferring the set of blanks thus formed to a forming station.

Avantageusement, le dispositif comporte de plus un poste de formage comprenant un mandrin et des moyens d'enroulement des découpes autour du mandrin pour former la boîte.Advantageously, the device further comprises a forming station comprising a mandrel and means winding cutouts around the mandrel to form the box.

Dans un mode de réalisation avantageux, les moyens d'échappement sont des moyens d'escamotage vers le bas des taquets.In an advantageous embodiment, the exhaust means are means for retraction down the cleats.

Dans un autre mode de réalisation, les moyens d'échappement des taquets sont des moyens agencés pour soulever la découpe au-dessus desdits taquets.In another embodiment, the escape means of the cleats are means arranged to lift the cutout above said cleats.

Egalement avantageusement les moyens de blocage en pression verticale de la première découpe comporte un taquet biseauté vers les découpes actionné par vérin.Also advantageously the vertical pressure locking means of the first cut comprises a beveled cleat towards the cuts actuated by jack.

Dans un mode de réalisation avantageux, les moyens pour réaliser l'escamotage vers le bas des taquets, comportent des moyens de pivotement de ces derniers autour d'un axe situé au-dessus du plan de la première voie, ce qui autorise un dégagement sans accrocher le carton.In an advantageous embodiment, the means for retracting the cleats downwards comprise means for pivoting them around an axis located above the plane of the first lane, which allows a clearance without hang the cardboard.

Avantageusement, les moyens de saisie et de transfert de la deuxième découpe sur la première découpe comprennent des moyens de préhension par ventouses aspirantes actionnées verticalement par vérins à moteur électrique linéaires à une vitesse de translation comprise entre 4m/s ou 6m/s. Ceci entraîne des accélérations pouvant atteindre et/ou être supérieures à 7g.Advantageously, the means for capturing and transferring the second blank to the first blank include gripping means by suction cups actuated vertically by linear electric motor cylinders at a translation speed of between 4m / s or 6m / s. This results in accelerations that can reach and / or be greater than 7g.

Egalement avantageusement le dispositif décrit ci-dessus est caractérisé en ce que la première découpe comportant une suite d'au moins quatre volets principaux terminée par une languette de fixation, reliés entre eux par des premières lignes de pliage parallèles entre elles, ladite suite de volets formant les parois externes de l'embase de la boîte et étant reliée d'un coté à une suite de rabats par des deuxièmes lignes de pliage perpendiculaires aux dites premières lignes de pliage, les moyens de saisie et de transfert sont agencés pour placer les troisièmes lignes de pliage de la deuxième découpe de façon sensiblement alignées par rapport aux premières lignes de pliage de la première découpe,
et en ce que les moyens d'application de la deuxième découpe sur la première sont agencés pour coller les deux panneaux sur les deux volets non adjacents en vis à vis.Also advantageously the device described above is characterized in that the first cut comprising a sequence of at least four main shutters terminated by a fastening tab, interconnected by first fold lines parallel to each other, said sequence of shutters forming the outer walls of the base of the box and being connected on one side to a series of flaps by second fold lines perpendicular to said first folding lines, the gripping and transferring means are arranged to place the third fold lines of the second cut substantially aligned with the first fold lines of the first cut,
and in that the means for applying the second cut to the first are arranged to glue the two panels to the two non-adjacent flaps facing each other.

L'invention sera mieux comprise au vu de la description qui suit des modes de réalisation donnés ci-après à titre d'exemples non limitatifs.The invention will be better understood from the description which follows of the embodiments given below by way of non-limiting examples.

Elle se réfère aux dessins qui l'accompagnent dans lesquels :

  • La figure 1 donne une vue en perspective d'un ensemble de première et de deuxième découpes utilisables avec l'invention.
  • La figure 2 est un schéma en perspective général d'un dispositif mettant en oeuvre le procédé selon un mode de réalisation de l'invention.
  • Les figures 3A et 3B montrent les voies de transfert des première et deuxième découpes en plan et en perspective.
  • La figure 4 montre plus particulièrement des moyens d'ajustage et de calage utilisés avec le système de taquets de transfert selon le mode de réalisation de l'invention des figures 3, pour la première voie.
  • La figure 5 est une vue en perspective de deux voies de transfert selon le mode de réalisation du dispositif de la figure 2.
  • La figure 6 est une vue en perspective des moyens d'encollage permettant la fixation d'une découpe sur l'autre avec un dispositif selon un mode de réalisation de l'invention.
  • La figure 7 est une vue en perspective du chariot de transfert de la deuxième découpe sur la première découpe pour former l'ensemble de découpes utilisé avec l'invention.
  • La figure 8 est une vue en perspective des moyens d'application d'une découpe sur l'autre, pour le collage selon un mode de réalisation de l'invention.
  • La figure 9 est une vue en perspective schématique du dispositif de transfert entre le poste d'assemblage des découpes et le poste de formage de la boîte autour du mandrin selon un mode de réalisation de l'invention.
  • La figure 10 montre en perspective un mode de réalisation du transfert entre le poste d'assemblage et le poste de formage du dispositif de la figure 2.
It refers to the accompanying drawings in which:
  • The figure 1 provides a perspective view of a set of first and second cuts usable with the invention.
  • The figure 2 is a general perspective diagram of a device implementing the method according to one embodiment of the invention.
  • The Figures 3A and 3B show the transfer routes of the first and second cuts in plan and in perspective.
  • The figure 4 more particularly shows adjusting and wedging means used with the transfer clutch system according to the embodiment of the invention of the invention. figures 3 , for the first way.
  • The figure 5 is a perspective view of two transfer paths according to the embodiment of the device of the figure 2 .
  • The figure 6 is a perspective view of the gluing means for fixing a cutout to the other with a device according to one embodiment of the invention.
  • The figure 7 is a perspective view of the transfer carriage of the second blank on the first blank to form the set of blanks used with the invention.
  • The figure 8 is a perspective view of the means for applying a cutout to the other, for gluing according to one embodiment of the invention.
  • The figure 9 is a schematic perspective view of the transfer device between the cutting assembly station and the forming station of the box around the mandrel according to one embodiment of the invention.
  • The figure 10 shows in perspective an embodiment of the transfer between the assembly station and the forming station of the device of the figure 2 .

La figure 1 montre un ensemble de découpes 1 utilisable de façon plus particulièrement avantageuse avec l'invention.The figure 1 shows a set of cuts 1 usable in a more particularly advantageous manner with the invention.

Il comporte une première découpe 2 formant le fond de la boîte et une deuxième découpe 3 comportant quatre panneaux rectangulaires 4, 5, 6, 7 et une languette de collage 8, reliés entre eux par des troisièmes lignes de pliage parallèles 9.It comprises a first cutout 2 forming the bottom of the box and a second cutout 3 comprising four rectangular panels 4, 5, 6, 7 and a gluing tab 8, interconnected by third parallel fold lines 9.

La deuxième découpe 3 comporte d'un côté un jeu de rabats 10, rectangulaires destiné à former le dessus de la boîte, une fois celle-ci réalisée, par collage les uns sur les autres après remplissage, et comporte un bord libre 11 de l'autre côté, dénué de rabat, de façon connue en elle-même.The second cutout 3 comprises, on one side, a set of rectangular flaps 10 intended to form the top of the box, once it has been formed, by gluing on each other after filling, and comprises a free edge 11 of the other side, devoid of flap, in a manner known in itself.

La première découpe 2, propre à former une ceinture destinée à constituer un fond de type présentoir, comprend quatre volets rectangulaires principaux 12, 13, 14, 15 formant les parois externes de l'embase de la boîte. Ils sont reliés entre eux par des premières lignes de pliage 16 parallèles entre elles, et sont terminés, à l'extrémité opposée par rapport à la languette 8 de la deuxième découpe, par une languette de collage 17.The first cut 2, suitable for forming a belt intended to constitute a display-type bottom, comprises four main rectangular flaps 12, 13, 14, 15 forming the outer walls of the base of the box. They are interconnected by first folding lines 16 parallel to each other, and are terminated, at the opposite end relative to the tongue 8 of the second cutout, by a gluing tab 17.

La suite de volets comporte un bord libre 18 du côté de la deuxième découpe, et une suite de rabats rectangulaires 19 du côté opposé, reliés aux dits volets par des deuxièmes lignes de pliage 20 perpendiculaires aux premières lignes 16.The sequence of flaps comprises a free edge 18 on the side of the second cut, and a series of rectangular flaps 19 on the opposite side, connected to said flaps by second fold lines 20 perpendicular to the first lines 16.

Les premières lignes de pliage 16 et les troisièmes lignes de pliage 9, sont lorsque les deux découpes vont être disposées en vis à vis pour être collées l'une sur l'autre sensiblement alignées.The first fold lines 16 and the third fold lines 9, are when the two cuts will be arranged opposite to be glued one on the other substantially aligned.

Par sensiblement alignées on entend tout mode de réalisation qui va permettre un enrobage ultérieur découpé autour d'un mandrin, soit grâce à la présence d'échancrures en partie basse de deuxième découpe, soit du fait d'un décalage entre première ligne de pliage et troisième ligne de pliage, décalage de plus en plus important au fur et à mesure de l'enrobage, pour entériner le rattrapage des jeux de la découpe externe par rapport à la découpe interne, soit dans un mode de réalisation plus avantageux de l'invention autorisant les plus fortes cadences, par une superposition précise, auquel cas au moins deux sur trois des troisièmes lignes de pliage de la deuxième découpe sont en partie basse 21 découpées ou écrasées en vis à vis de la première ligne de pliage correspondante.By substantially aligned is meant any embodiment that will allow a subsequent coating cut around a mandrel, either due to the presence of indentations in the lower part of the second cut, or because of a shift between first fold line and third folding line, more and more significant shift as the coating, to confirm the catch of the games of the external cut with respect to the inner cut, or in a more advantageous embodiment of the invention allowing the highest rates, by a precise superposition, in which case at least two out of three of the third fold lines of the second cut are in the lower part 21 cut or crushed opposite the corresponding first folding line.

Par portion découpée, on entend une portion incisée ou fendue de façon traversante par exemple par une lame de coupe ou couteau, de part en part, sans enlèvement de matière, ou dans un mode de réalisation sensiblement sans élément de matière (c'est à dire avec une fente de moins d'un ou deux millimètre de largueur), contrairement aux échancrures de l'art antérieur.By cut portion is meant a portion incised or slotted in a through manner for example by a cutting blade or knife, from one side to the other, without removal of material, or in an embodiment substantially without element of material (that is to say say with a slot of less than one or two millimeters wide), unlike the indentations of the prior art.

Par écrasement on entend mâchage du rainant de la ligne de pliage.By crushing is meant chewing the groove of the fold line.

Un mode de réalisation où les lignes de pliage sont légèrement décalées les unes par rapport aux autres pour permettre lors de l'enrobage autour du mandrin, un empilement des cotes avec possibilité de glissement d'une découpe par rapport à l'autre est également possible.An embodiment where the fold lines are slightly offset relative to each other to allow during the coating around the mandrel, a stack of dimensions with the possibility of sliding of a cut relative to the other is also possible .

Toutefois, et comme indiqué ci-dessus, il est curieusement plus avantageux avec le procédé et le dispositif selon l'invention, d'utiliser deux découpes dont les lignes de pliage sont superposées en partie basse 21 des lignes de pliage 9 par rapport aux lignes 16, soit avec mâchage sur la hauteur de la ligne 16 ou sur une hauteur un peu supérieure, soit avec découpe éventuellement latéralement légèrement décalée par rapport à la ligne de pliage de la première découpe en vis à vis, mais toujours sur la hauteur, d'une valeur correspondant au minimum à la valeur cumulée des épaisseurs des papiers (et non du carton) constituant les flans, c'est-à-dire très faibles puisque d'une valeur inférieure à de l'ordre de 1 ou 2 mm ou par exemple de 0,5 à 0,7 mm entre rainans.However, and as indicated above, it is curiously more advantageous with the method and the device according to the invention to use two blanks whose fold lines are superimposed on the lower part 21 of the fold lines 9 with respect to the lines. 16, either with chewing on the height of the line 16 or on a slightly higher height, or with possibly laterally slightly offset cutting relative to the fold line of the first cut opposite, but always on the height, d a value corresponding at least to the cumulative value of the thicknesses of the papers (and not of the cardboard) constituting the blanks, that is to say very small since of a value lower than the order 1 or 2 mm or for example 0.5 to 0.7 mm between rainans.

L'autre côté 18 de la première découpe est quant à lui dénué de rabat.The other side 18 of the first cut is in turn devoid of flap.

Deux des volets par exemple le volet intermédiaire 13 et le volet d'extrémité 15 sont, quant à eux encollés, par exemple par des lignes d'encollage à la colle dite « hot melt » 22, de façon connue en elle-même.Two of the flaps for example the intermediate flap 13 and the end flap 15 are, for their glue, for example by sizing lines with the glue called "hot melt" 22, in a manner known per se.

Dans le mode de réalisation plus particulièrement décrit des emballages utilisables avec l'invention on utilisera un collage interdisant le mouvement relatif des découpes l'une par rapport à l'autre, grâce au mode de superposition plus particulièrement décrit ci-dessus, favorable aux grandes cadences.In the embodiment more particularly described packaging usable with the invention will use a collage prohibiting the relative movement of the cuts relative to each other, thanks to the superposition mode more particularly described above, favorable to large cadences.

Rappelons que par collage interdisant le mouvement relatif il faut entendre un collage empêchant le mouvement dans le sens du plan des volets et panneaux, sans arrachage et délaminage.Recall that by gluing prohibiting the relative movement is meant a collage preventing movement in the direction of the plane of the shutters and panels, without tearing and delamination.

Par contre un tel collage va autoriser une désolidarisation ultérieure des éléments de la boîte ainsi formée par arrachage transversal de l'un par rapport à l'autre de façon manuelle pour libérer la coiffe de l'embase formant présentoir.On the other hand, such a bonding will allow subsequent separation of the elements of the box thus formed by transversely pulling the one relative to the other manually to release the cap of the base forming a display.

On peut utiliser avec l'invention, des découpes en carton ondulé par exemple de 2 à 3 mm d'épaisseur, mais ce procédé autorise de façon surprenante et grâce à la combinaison des étapes qu'il met en oeuvre, l'utilisation de carton de faible épaisseur et de faible grammage, par exemple inférieur à 100 gr.It is possible to use with the invention corrugated cardboard cuttings, for example 2 to 3 mm thick, but this process allows, surprisingly and thanks to the combination of the steps that it uses, the use of cardboard of low thickness and low weight, for example less than 100 gr.

En référence à la figure 1, on voit ensuite que (deuxième schéma de la figure) la deuxième découpe 3 est, après encollage des volets 13 et 15, appliquée sur la première découpe en alignant les bords libres 11 et 18, et en superposant les zones 21 avec les premières lignes de pliages 16, puis amenée sous le mandrin 23 pour ensuite être enrobée (flèche F) avant que les languettes de collage 8 et 17, elles-mêmes préalablement encollées, soit rabattues successivement sur la face externe en vis-à-vis du panneau au volet adjacent pour permettre la formation finale de la boîte, le bas de la languette 8 étant découpé pour permettre le passage de la languette 17.With reference to the figure 1 , we then see that (second diagram of the figure) the second cutout 3 is, after gluing flaps 13 and 15, applied on the first cut by aligning the free edges 11 and 18, and superimposing the areas 21 with the first fold lines 16, then brought under the mandrel 23 to then be coated (arrow F) before the gluing tabs 8 and 17 , themselves previously glued, or folded successively on the outer face vis-à-vis the panel to the adjacent flap to allow the final formation of the box, the bottom of the tongue 8 being cut to allow the passage of the tongue 17 .

On va maintenant décrire en référence aux figures 2 et suivantes un dispositif 24 selon l'invention.We will now describe with reference to figures 2 and following a device 24 according to the invention.

Par la suite, on utilisera les mêmes numéros de référence pour désigner les mêmes éléments.Subsequently, the same reference numbers will be used to designate the same elements.

Celui-ci comprend deux magasins adjacents 25 et 26 en biais, connus en eux-mêmes (cf. figure 5) respectivement de stockage de premières découpes 2 et de deuxièmes découpes 3.It comprises two adjacent magazines 25 and 26 at an angle, known in themselves (cf. figure 5 ) respectively for storing first cuts 2 and second cuts 3.

Des moyens de préhension 27, 28 de découpe à partir desdits magasins par ventouse du type « flip-flop » sont prévus pour alimenter les deux voies horizontales parallèles 29, 30 de transfert à plat des découpes vers un poste d'assemblage 31, à savoir une première voie 29 pour la première découpe et une deuxième voie 30 pour la deuxième découpe, chaque voie comprenant un système d'entraînement 32, 33 des découpes, à taquets, comme cela sera décrit plus précisément ci-après.Gripping means 27, 28 for cutting from said "flip-flop" type suction cups are provided to feed the two horizontal parallel tracks 29, 30 for flat transfer of the blanks to an assembly station 31, namely a first path 29 for the first cut and a second path 30 for the second cut, each path comprising a drive system 32, 33 cutouts, cleats, as will be described more precisely below.

Le dispositif comprend des moyens 34, 35 de butée longitudinale au poste d'assemblage de chacune des premières et deuxièmes découpes à leur position respective, formé par des taquets escamotables activés par vérin électrique, entre une position basse située sous le plan de la voie, et une position haute de butée, des moyens 36 d'encollage (voir figure 6) de la première découpe pendant son transfert comprenant des buses 37 d'application de colle hot melt vers le bas, alimenté par des tuyaux calorifugés 38, montés sur un chariot 39 réglable en x, y.The device comprises longitudinal stop means 34, 35 at the assembly station of each of the first and second cutouts at their respective positions, formed by retractable catches actuated by an electric jack, between a position under the plane of the track, and a high abutment position, means 36 for gluing (see figure 6 ) of the first cut during its transfer comprising nozzles 37 for applying hot melt glue down, supplied by insulated pipes 38, mounted on a carriage 39 adjustable x, y.

Le dispositif (cf. figure 3) comporte par ailleurs des rails de guidage 40, 41, 42, 43, respectivement des découpes 2 et 3 pendant leur transfert, sur les voies 29, 30, et des moyens 44 de calage en butée latérale de la première découpe 2 et pour la deuxième découpe (non représentée) pour leur donner une position de référence latérale exacte contre un rail de guidage de référence respectif (40 ou 42).The device (cf. figure 3 ) further comprises guide rails 40, 41, 42, 43, respectively cutouts 2 and 3 during their transfer, on the tracks 29, 30, and means 44 wedging lateral abutment of the first blank 2 and for the second cut (not shown) to give them an exact lateral reference position against a respective reference guide rail (40 or 42).

Les moyens de calage 44 seront décrits plus précisément ci-après.The wedging means 44 will be described more precisely below.

Le dispositif comprend également des moyens 50 de saisie et de transfert latéralement par ventouse 51 de la deuxième découpe 3 pour la placer sur la première découpe 2 préalablement ainsi indexée, qui vont quant à eux être précisés par la suite en référence à la figure 7.The device also comprises means 50 for capturing and laterally transferring by suction cup 51 of the second cutout 3 to place it on the first cut 2 previously indexed, which will be specified later with reference to the figure 7 .

Le dispositif 24 comprend de plus (cf. figure 4), des moyens d'escamotage 60 et (cf. figure 8) des moyens d'application 70 de la première découpe sur la deuxième découpe.The device 24 further comprises (cf. figure 4 ), retraction means 60 and (cf. figure 8 ) application means 70 of the first blank on the second blank.

Enfin il comporte (cf. également figure 9 et 10) des moyens 80 de transfert de l'ensemble de découpes ainsi constitué à un poste de formage 90.Finally it includes (see also figure 9 and 10 ) means 80 for transferring the set of cuts thus formed to a forming station 90.

On a représenté sur les figures 3, 3B et 4 plus précisément, bien que schématiquement, la partie amont du dispositif selon le mode de réalisation de l'invention plus particulièrement décrit ici.We have shown on Figures 3, 3B and 4 more precisely, although schematically, the part upstream of the device according to the embodiment of the invention more particularly described here.

Celui-ci comprend deux magasins adjacents de stockage de découpes 25 et 26 et les deux voies parallèles 29 et 30 de transfert de la première découpe 2 et de la deuxième découpe 3 au poste d'assemblage 31 proprement dit.The latter comprises two adjacent storing magazines 25 and 26 and two parallel tracks 29 and 30 for transferring the first blank 2 and the second blank 3 to the assembly station 31 itself.

Les voies 29 et 30 sont deux voies parallèles comportant des moyens de préhension et de déplacement des découpes par les systèmes d'entraînement 32, 33 comprenant des courroies sans fin C, par exemple actionnées par moteur pas à pas sur lesquels sont fixés de façon réglable en distance des taquets 61 pour les premières découpes et 62 pour les deuxièmes découpes, qui permettent le déplacement desdites découpes en les poussant, entre les rails du guidage 40, 41 pour les premières découpes et 42, 43 pour les deuxièmes découpes.The tracks 29 and 30 are two parallel tracks comprising means for gripping and moving the blanks by the drive systems 32, 33 comprising endless belts C, for example actuated by stepper motor on which are adjustable in distance from the cleats 61 for the first cuts and 62 for the second cuts, which allow the displacement of said cuts by pushing them between the rails of the guide 40, 41 for the first cuts and 42, 43 for the second cuts.

Ces guidages sont effectués de façon classique, avec un léger jeu compte tenu des tolérances de fabrication des découpes notamment liées au risque de voilage et/ou aux variations des températures et humidité ambiantes entraînant des déformations du carton.These guides are made in a conventional manner, with a slight clearance taking into account the manufacturing tolerances of the cuts, in particular related to the risk of warping and / or to variations in ambient temperature and humidity, leading to deformation of the cardboard.

Le dispositif 24 selon le mode de réalisation de l'invention plus particulièrement décrit ici, comporte à l'extrémité des deux voies 29, 30, les moyens de butée longitudinales 34 et 35 qui vont permettre une position de référence longitudinale précise des deux découpes.The device 24 according to the embodiment of the invention more particularly described here, comprises at the end of the two channels 29, 30, the longitudinal stop means 34 and 35 which will allow a precise longitudinal reference position of the two cuts.

Celles-ci sont réglées préalablement notamment par les distances des taquets 61, 62 sur les courroies sans fin de déplacement des découpes.These are previously adjusted in particular by the distances of the cleats 61, 62 on the endless belts of displacement of the cuts.

Les moyens 44 de calage longitudinal comprennent quant à eux un taquet 63 mobile dans le plan de la voie 29 dont la course va être réglée par l'intermédiaire d'un vérin électrique pour excercer une pression souple sur le bord du carton 64, grâce par exemple à un ressort 65 de mise en pression. Les moyens 44 permettent de donner une position de référence latérale exacte à la première découpe 2.The longitudinal locking means 44 comprise a cleat 63 movable in the plane of the track 29, the stroke of which will be regulated by means of an electric jack for exerting a flexible pressure on the edge of the carton 64, thanks to example to a pressurizing spring 65. The means 44 make it possible to give an exact lateral reference position to the first blank 2.

Avantageusement, il peut également être prévu des moyens similaires 66 de calage de la deuxième découpe, pour la positionner exactement par rapport à son rail de référence 42.Advantageously, it can also be provided similar means 66 for wedging the second cut, to position it exactly with respect to its reference rail 42.

Les taquets 63 et 66 sont par exemple également escamotables vers le bas pour faciliter ensuite l'enlevage des découpes.The tabs 63 and 66 are for example also retractable downwards to facilitate subsequent removal of the cuts.

Selon le mode de réalisation de l'invention plus particulièrement décrit ici, il est également prévu l'escamotage des taquets 61 vers le bas lorsque la deuxième découpe va venir être accostée sur la première découpe.According to the embodiment of the invention more particularly described here, it is also expected the retraction of the cleats 61 down when the second cut will be approached on the first cut.

Pour ce faire, des moyens d'escamotage sont constitués par des leviers 66 qui vont pivoter autour d'un axe 67 parallèle au plan des voies de transfert disposées au-dessus desdits plans (cf. figure 4), par exemple à une distance d. Ceci permet (cf.flèche 68) l'escamotage des taquets sans risquer d'accrocher le bord 18 du flan 2 de la première découpe avant accostage.To do this, means of retraction are constituted by levers 66 which will pivot about an axis 67 parallel to the plane of the transfer paths disposed above said planes (cf. figure 4 ), for example at a distance d. This allows (see arrow 68) the retraction of the cleats without the risk of hanging the edge 18 of the blank 2 of the first cut before docking.

Il est également prévu un taquet 69 de forme biseautée vers la découpe, actionnée par vérin électrique, qui va descendre avec un léger décalage dans le temps par rapport à la montée du taquet de blocage longitudinal 34, pour permettre de bloquer la découpe lors de l'effacement des taquets 61, afin d'éviter tout recul de la découpe, dont la position exacte risquerait d'être faussée avant la mise en place précise de la deuxième découpe sur la première découpe.There is also provided a cleat 69 of beveled shape to the cut, actuated by electric jack, which will descend with a slight shift in time relative to the rise of the longitudinal locking cleat 34, to allow blocking the cutting during the clearing of the cleats 61, to avoid any recoil of the cut, whose exact position could be distorted before the precise introduction of the second cut on the first cut.

La figure 6 montre les moyens 36 d'encollage utilisés dans un dispositif selon l'invention, connus en eux-mêmes. Ces moyens d'encollage permettent par l'intermédiaire de buses 37 la projection de jets de colle par le dessus sur les volets 13 et 15, ainsi que sur les languettes 8 et 17, des premières et deuxièmes découpes par exemple sous forme de traits comme montrés sur la figure 1.The figure 6 shows the sizing means 36 used in a device according to the invention, known in themselves. These sizing means allow through nozzles 37 the projection of glue jets from above on the flaps 13 and 15, as well as on the tabs 8 and 17, first and second cutouts for example in the form of lines like shown on the figure 1 .

Un dispositif précis permet de positionner les traits de colle par réglage des projecteurs en fonction de la taille des découpes, la machine étant bien entendu modulable pour traiter des premières et deuxièmes découpes de dimension assez différentes, et ce jusqu'à des tailles très petites (cf. figure 7).A precise device makes it possible to position the glue lines by adjusting the projectors according to the size of the cuts, the machine being of course flexible to treat first and second cuts of quite different size, and up to very small sizes ( cf. figure 7 ).

On a représenté sur cette figure et plus précisément, les moyens 50 de transfert de la deuxième découpe sur la première découpe.This figure shows, more precisely, the means 50 for transferring the second blank to the first blank.

Les moyens 50 comportent deux chariots, à savoir un premier chariot 52 comportant quatre ventouses 51 solidaires les unes des autres, et un deuxième chariot 53 réglable en distance par rapport au premier chariot, comprenant quant à lui deux ventouses 51.The means 50 comprise two trolleys, namely a first trolley 52 having four suckers 51 integral with each other, and a second trolley 53 adjustable in distance relative to the first trolley, comprising in turn two suckers 51.

Ces deux chariots vont permettre une grande adaptabilité dans la taille des découpes que l'on va pouvoir traiter.These two carriages will allow a great adaptability in the size of the cuts that we will be able to treat.

Selon le mode de réalisation de l'invention plus particulièrement décrit, les ventouses 51 sont actionnées verticalement par des vérins 54 à moteur électrique linéaire du type fabriqué par la société suisse LINMOT. Il s'agît de vérins fragiles, très sensibles au moindre choc latéral, mais d'un fonctionnement exactement précis et rapide et d'un poids très léger.According to the embodiment of the invention more particularly described, the suction cups 51 are actuated vertically by jacks 54 with a linear electric motor of the type manufactured by the Swiss company LINMOT. They are fragile cylinders, very sensitive to the slightest side impact, but of exactly precise and fast operation and of a very light weight.

Avec le dispositif, selon l'invention, et bien qu'ils aient semblé incompatibles de prime abord, de tels vérins se sont révélés fonctionner parfaitement de façon surprenante. Leur utilisation présente l'avantage d'une possibilité de fonctionnement très rapide étant rappelé que les vitesses de la translation des chariots, comprises entre 4m/s et 6m/s entraînent des accélérations extrêmement fortes.With the device, according to the invention, and although they appeared to be incompatible at first sight, such cylinders have proved to work perfectly surprisingly. Their use has the advantage of a very fast operating possibility being recalled that the speeds of the translation of the carriages, between 4m / s and 6m / s cause extremely high accelerations.

Pour ce faire, les chariots sont par exemple montés par le biais d'un dispositif à machine débrayable avec amortisseur à ressort sur un système d'entraînement 55 comprenant une courroie 56 interne à un boîtier 57, formant poutre de support et de guidage entraînée par poulies 58 actionnées par un moteur 59 de façon connue en elle-même.To do this, the carriages are mounted, for example, by means of a disengageable machine device with a spring-loaded damper on a drive system 55 comprising a belt 56 internal to a casing 57, forming a support and guide beam driven by pulleys 58 actuated by a motor 59 in a manner known per se.

Les chariots sont rendus solidaires de la courroie 56 par exemple par clampage de mors solidaires du train de chariots dont l'espacement a été préalablement réglé. Un dispositif d'actionnement du clampage par ressort, connu en lui-même, permet le fonctionnement des mors, en ouverture/fermeture.The carriages are secured to the belt 56, for example by clamping jaws integral with the train of carriages whose spacing has been previously adjusted. A clamping spring actuation device, known in itself, allows the operation of the jaws, opening / closing.

La figure 8 illustre les moyens 70 d'application de la deuxième découpe sur la première découpe. Ils comportent un système 71 à double vérins 72 permettant de monter et de descendre une barre d'application 73 de longueur réglable, agencée pour exercer la pression d'une découpe sur l'autre, de façon précise et permettant un bon éclatement de la colle lors de la compression.The figure 8 illustrates the means 70 for applying the second blank to the first blank. They comprise a system 71 with double cylinders 72 for raising and lowering an application bar 73 of adjustable length, arranged to exert the pressure of a cutout on the other, of Precise way and allowing a good bursting of the glue during the compression.

Les figures 9 et 10 montrent, quant à elles, les éléments du dispositif permettant le transfert de l'ensemble de découpes ainsi collées au poste de formage.The figures 9 and 10 show, in turn, the elements of the device for transferring the set of cuts thus glued to the forming station.

Plus précisément, il est prévu des moyens 80 de transfert de l'ensemble des découpes 2 et 3, assemblées comme décrit ci-avant. Ceux-ci comprennent un tapis 81 qui amène les découpes sous un ensemble 82 du type flip/flop muni de quatre jeux 83 de deux ventouses 84, le tapis se déplaçant verticalement (flèche 85), pour venir accoster les ventouses, ce qui permet de minimiser leur usure par frottement.More specifically, there is provided means 80 for transferring all the cutouts 2 and 3, assembled as described above. These include a belt 81 which brings the cuts under a set 82 of the flip / flop type provided with four sets 83 of two suckers 84, the carpet moving vertically (arrow 85), to come dock the suction cups, which allows to minimize their wear by friction.

L'ensemble 82 est alors actionné pour prendre les découpes et par un mouvement de rotation translatif 86, les amener à l'horizontale sur le tapis 87 de déplacement de l'ensemble sous le mandrin 23.The assembly 82 is then actuated to take the cutouts and by a translational rotation movement 86, bring them horizontally on the belt 87 for moving the assembly under the mandrel 23.

En d'autres termes, en montant l'ensemble de découpes vers le haut cela autorise un accostage des ventouses de façon verticale plutôt que sensiblement horizontal, compte tenu du relativement faible décalage en hauteur des plans d'assemblage avec le plan de formage, ce qui aurait sinon comme effet d'user les ventouses.In other words, by mounting the set of cut-outs upwards, this allows the suction cups to be docked vertically rather than substantially horizontally, given the relatively small offset in height of the assembly planes with the forming plane. which would otherwise have the effect of using the suction cups.

L'ensemble est ensuite amené au dessous du mandrin, de façon connue en elle-même au poste de formage 90 avant de former l'emballage 91 comme représenté sur la figure 9.The assembly is then brought under the mandrel, in a manner known per se to the forming station 90 before forming the package 91 as shown in FIG. figure 9 .

Selon les modes de réalisation de l'invention plus particulièrement décrit ici, il est avantageux d'utiliser essentiellement des moteurs dit « brushless » pour l'actionnement des différents éléments mécaniques.According to the embodiments of the invention more particularly described here, it is advantageous to use essentially said engines "Brushless" for the actuation of the different mechanical elements.

On va maintenant décrire le fonctionnement du dispositif en référence aux figures 2 et 3.We will now describe the operation of the device with reference to figures 2 and 3 .

A partir des magasins 25, 26, préalablement remplis, on dépile et on dépose sur leur voie respective les première et deuxième découpes, qui sont reprises par les taquets, et déplacées jusqu'à leur position de butée longitudinale.From the magazines 25, 26, previously filled, the first and second cutouts, which are taken up by the catches, are moved and deposited on their respective tracks and moved to their longitudinal stop position.

La première découpe est encollée pendant le transfert.The first cut is glued during the transfer.

On vient alors taquer les découpes grâce aux taquets latéraux 44 et 66 montés élastiquement sur ressort, contre leurs rails respectifs 40, 42.The cuts are then jogged by means of the lateral tabs 44 and 66 spring-mounted resiliently against their respective rails 40, 42.

Puis avec les chariots 50, on saisit la deuxième découpe 3, en actionnant les vérins à la course réglée précisément vers le bas, puis on met au vide les ventouses 51. On amène ensuite ladite deuxième découpe en vis-à-vis de la première découpe 2, qu'on abaisse, en escamotant les taquets 61. La deuxième découpe est alors posée précisément en vis-à-vis en alignant les lignes de pliage, la première découpe étant retenue par un taquet 69 évitant à cette dernière de repartir.Then with the carriages 50, the second cut 3 is grasped, by actuating the jacks with the precisely regulated stroke downwards, then the suction cups 51 are emptied. Next, said second cut-out is brought in front of the first cut. cut 2, which is lowered, by retracting the tabs 61. The second cut is then placed precisely vis-à-vis by aligning the fold lines, the first cut being retained by a stopper 69 preventing the latter from starting again.

Les ventouses sont larguées et les chariots repartent instantanément pour reprendre la deuxième découpe suivante, pendant que la barre de mise en compression et d'éclatement de la colle est descendue sur les découpes.The suction cups are released and the carriages start instantly to resume the next second cut, while the bar of compression and bursting of the glue is lowered on the cutouts.

Les taquets 69 et 34 de butée longitudinale s'effacent et libèrent l'ensemble de découpes, en même temps que la barre remonte.The stoppers 69 and 34 of longitudinal stop fade and release the set of cuts, at the same time as the bar goes back.

Puis l'ensemble est amené en étant poussé par les taquets en position de reprise sur une table, qui soulève ledit ensemble, en même temps qu'est amenée en vis-à-vis une barre de reprise flip/flop.Then the assembly is brought by being pushed by the tabs in the recovery position on a table, which raises said assembly, at the same time is brought in facing a flip / flop recovery bar.

Celui-ci se saisit de l'ensemble, qu'il vient alors positionner (cf.figure 9) sur un tapis de transfert avant le plaquage sous le mandrin 23, connu en lui-même.He takes hold of the whole, which he then positions (cf. figure 9 ) on a transfer belt before the plating under the mandrel 23, known in itself.

Puis la caisse est enrobée autour du mandrin, ici encore de façon connue, par rabattage, avant d'être éjectée.Then the box is wrapped around the mandrel, here again in known manner, by folding, before being ejected.

Claims (18)

  1. Method for the production of a packing box with a polygonal section from at least two cut shapes of cardboard sheet or corrugated cardboard sheet material, namely a first cut shape (2) forming the bottom of said box, and a second cut shape (3) comprising at least four panels (4, 5, 6, 7) respectively connected to one another by third parallel fold lines (9), comprising a lower free edge with no flaps on the bottom side, said second cut shape forming a lid for said box, characterised in that said cut shapes (2, 3) are simultaneously removed from stacks in two adjacent magazines (25, 26) and placed on two parallel tracks (29, 30), namely a first track (29) for the first cut shape and a second track (30) for the second cut shape,
    said cut shapes are transferred to said tracks flat, being guided substantially with a lateral gap between two rails (40, 41; 42, 43) by a drive system with stops, until they come into longitudinal abutment in an assembly station, in a longitudinal position set for each of the cut shapes,
    glue is applied to said first cut shape (2) during its transfer to the longitudinal abutment position (34, 35), the first and second cut shapes are respectively clamped in lateral abutment to give them a precise lateral reference position,
    the second cut shape (3) is grasped, transferred laterally and placed on the first cut shape (2) thus indexed, the stops (61) of the first track being disengaged when the second cut shape is moved into position on the first, while it is held by locking with vertical pressure,
    the second cut shape is then applied to the first cut shape, to glue one to the other, in their respective predetermined longitudinal positions,
    then the assembly of cut shapes so formed is transferred to a forming station (90) in which the box is formed by rolling the cut shapes around a mandrel.
  2. Method according to claim 1, characterised in that to disengage the stops (61) of the first track (29), the first cut shape (2) is raised above said stops.
  3. Method according to claim 1, characterised in that to disengage the stops (61) of the first track, said stops are retracted downwards.
  4. Method according to claim 3, characterised in that to achieve the retraction of the stops, the latter are pivoted about an axis (67) located above the plane of the first track, which allows disengagement without catching the cardboard.
  5. Method according to one of the preceding claims, characterised in that the locking with vertical pressure is executed through the medium of a stop (63) which is bevelled towards the cut shapes and actuated vertically.
  6. Method according to any one of the preceding claims, characterised in that the second cut shape (3) is moved on to the first cut shape by transverse translation, after gripping by means of suction cups (51) actuated vertically by jacks with a linear electric motor, at a speed of translation of between 4m/s and 6m/s.
  7. Method according to claim 6, characterised in that the second cut shape (3) is transferred on to the first cut shape (2) by an arrangement of two carriages (52, 53) actuated by a belt clamping drive system.
  8. Method according to any one of the preceding claims, characterised in that, in order to transfer the assembly of cut shapes so-formed to the forming station, said assembly is raised to bring it into contact with gripping cups (84) of an arrangement for transferring the assembly to the forming station.
  9. Method according to any one of the preceding claims, characterised in that, the first cut shape (2) having a series of at least four main leaves (12, 13, 14, 15) terminated by a fixing tongue (17), connected together by first parallel fold lines (16) between them, said series of leaves forming the external walls of the base of the box, having on one side an upper free edge (18) with no flaps and being connected on the other side to a series of flaps by second fold lines (20) perpendicular to said first fold lines, the second cut shape (3) is placed on the first cut shape, the free edge (11) of said second cut shape being aligned or substantially aligned with the second fold lines (20) of the first cut shape and the third fold lines (9) being superposed in relation to the first fold lines (16) of the first cut shape.
  10. Method according to any one of claims 1 to 8, characterised in that the first cut shape (2) having a central panel and four lateral peripheral flaps, one of said previously glued flaps is placed face to face with a leaf of the second cut shape to form a bottom in the shape of a boat once folded around the mandrel.
  11. Device (24) for the production of a packing box with a polygonal section from at least two cut shapes (2, 3) of cardboard sheet or corrugated cardboard sheet material, namely a first cut shape (2) forming the bottom of said box, and a second cut shape (3) having at least four panels (4, 5, 6, 7) connected together by third parallel fold lines (9), having a lower free edge (11) with no flap on the bottom side, said second cut shape forming a lid for said box, characterised in that it comprises
    two adjacent magazines (25, 26) for storage respectively of the first and second cut shapes,
    means for transfer of said cut shapes to an assembly station comprising:
    means (27, 28) for gripping the cut shapes from said magazines,
    two parallel tracks (29, 30) for transferring said cut shapes flat to an assembly station (31), namely a first track (29) for the first cut shape (2) and a second track (30) for the second cut shape (3), each track comprising a system (32, 33) for drive of the cut shapes with stops,
    means for guiding each of said cut shapes, each comprising two rails (40, 41; 42, 43) for guiding the cut shapes (2, 3) substantially with a lateral gap to an assembly station, and
    means (34, 35) for longitudinal abutment to said assembly station, in a longitudinal position set for each of the cut shapes,
    means (36) for applying glue to the first cut shape during its transfer, to its longitudinal position,
    means (44) for clamping the first and second cut shapes in lateral abutment to give them a precise respective lateral reference position against one of the rails,
    means (50) for grasping and laterally transferring the second cut shape (3) by means of cups (51) to place it on the first cut shape (2) thus indexed, in their respective set longitudinal positions,
    means (60) for disengaging the dogs of the first track in relation to the first cut shape, when the second cut shape is moved into position on the first, and means for locking said first cut shape with vertical pressure at the time of disengagement,
    means (70) for applying the second cut shape on the first cut shape,
    and means (80) for transferring the assembly of cut shapes so formed to a forming station (90).
  12. Device according to claim 11, characterised in that in addition it comprises said forming station (90) comprising a mandrel (23) and means for rolling the cut shapes around said mandrel to form the box.
  13. Device according to any one of claims 11 and 12, characterised in that the means for locking with vertical pressure comprise a stop (69) which is bevelled towards the cut shapes and actuated by jack.
  14. Device according to any one of claims 11 to 13, characterised in that the means (60) for disengaging the stops (61) comprise means for retracting the stops downwards by pivoting the latter about an axis (67) located above the plane of the first track.
  15. Device according to any one of claims 11 to 14, characterised in that the means (50) for grasping and transferring the second cut shape (3) on to the first cut shape comprise means for transverse translation comprising means for gripping using suction cups (51) actuated vertically by jacks (54) with a linear electric motor, with a speed of translation of between 4m/s and 6m/s.
  16. Device according to claim 15, characterised in that the means (50) for transferring the second cut shape (3) on to the first cut shape (2) comprise an arrangement of two carriages (52, 53) actuated by a belt clamping drive system (55, 56).
  17. Device according to any one of claims 11 to 16, characterised in that the means (50) for transferring the assembly of cut shapes (2, 3) to the forming station (90) comprise an arrangement for moving said cut shapes to the forming station provided with gripping suction cups (61) and means arranged to raise said assembly to bring it into contact with said gripping cups.
  18. Device according to any one of claims 11 to 17, characterised in that
    the first cut shape (2) having a series of at least four main leaves (12, 13, 14, 15) terminated by a fixing tongue (17), connected together by first parallel fold lines (16) between them, said series of leaves forming the external walls of the base of the box and being connected on one side to a series of flaps by second fold lines perpendicular to said first fold lines, the means for grasping and transfer are arranged in order to place the third fold lines of the second cut shape substantially aligned in relation to the first fold lines of the first cut shape,
    and in that the means for application of the second cut shape on the first are arranged in order to glue the two panels to the two non-adjacent leaves face to face.
EP09719964A 2008-02-04 2009-02-03 Method and device for making boxes from a set of blanks Active EP2240316B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09719964T PL2240316T3 (en) 2008-02-04 2009-02-03 Method and device for making boxes from a set of blanks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0800602A FR2927015B1 (en) 2008-02-04 2008-02-04 METHOD AND DEVICE FOR MAKING BOXES FROM A SET OF CUTTERS
PCT/FR2009/000122 WO2009112707A1 (en) 2008-02-04 2009-02-03 Method and device for making boxes from a set of blanks

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EP2240316A1 EP2240316A1 (en) 2010-10-20
EP2240316B1 true EP2240316B1 (en) 2012-05-16

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EP09719964A Active EP2240316B1 (en) 2008-02-04 2009-02-03 Method and device for making boxes from a set of blanks

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US (1) US8409064B2 (en)
EP (1) EP2240316B1 (en)
JP (1) JP5467057B2 (en)
BR (1) BRPI0907745B1 (en)
CA (1) CA2713406C (en)
ES (1) ES2385539T3 (en)
FR (1) FR2927015B1 (en)
MX (1) MX2010008601A (en)
PL (1) PL2240316T3 (en)
WO (1) WO2009112707A1 (en)

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Also Published As

Publication number Publication date
WO2009112707A1 (en) 2009-09-17
ES2385539T3 (en) 2012-07-26
FR2927015B1 (en) 2010-03-05
US8409064B2 (en) 2013-04-02
US20110053746A1 (en) 2011-03-03
PL2240316T3 (en) 2013-02-28
JP2011510848A (en) 2011-04-07
BRPI0907745B1 (en) 2020-12-08
CA2713406A1 (en) 2009-09-17
JP5467057B2 (en) 2014-04-09
MX2010008601A (en) 2010-11-30
CA2713406C (en) 2016-01-12
BRPI0907745A2 (en) 2019-11-12
FR2927015A1 (en) 2009-08-07
EP2240316A1 (en) 2010-10-20

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