EP0439402A1 - Method for packaging objects stacked on a support and device for carrying out the method - Google Patents

Method for packaging objects stacked on a support and device for carrying out the method Download PDF

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Publication number
EP0439402A1
EP0439402A1 EP91400145A EP91400145A EP0439402A1 EP 0439402 A1 EP0439402 A1 EP 0439402A1 EP 91400145 A EP91400145 A EP 91400145A EP 91400145 A EP91400145 A EP 91400145A EP 0439402 A1 EP0439402 A1 EP 0439402A1
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EP
European Patent Office
Prior art keywords
blank
blanks
pallet
support
vertical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91400145A
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German (de)
French (fr)
Inventor
Guy Paul Gérard Letard
Jacques Pilet
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.)
SUREPACK INDUSTRIE
Original Assignee
SUREPACK INDUSTRIE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SUREPACK INDUSTRIE filed Critical SUREPACK INDUSTRIE
Publication of EP0439402A1 publication Critical patent/EP0439402A1/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/58—Applying two or more wrappers, e.g. in succession
    • B65B11/585—Applying two or more wrappers, e.g. in succession to stacked articles, e.g. pallettised loads

Definitions

  • the invention relates to a method of packaging products stacked on a support such as a pallet, according to which an envelope surrounding the products is produced from at least one blank made of a packaging material, such as cardboard. , provided with fold and cut lines defining flaps and a system for carrying out the method.
  • the object of the invention is to propose such a simple and easily applicable solution to the problem which has just been stated.
  • the method according to the invention is characterized in that an envelope is formed with an axis perpendicular to the stacking surface of the support, around the latter, by deformation of a blank initially arranged perpendicular to the support and secures the envelope of the support, in its desired relative position.
  • the envelope is formed from two flat blanks arranged vertically, with vertical fold lines, around a support with a horizontal stacking surface, so that the vertical edges of the blanks overlap and assemble the blanks along these edges overlapping.
  • the envelope is produced around the pallet-shaped support on which products are stacked and secures the envelope of the pallet by folding flaps provided at the upper end of the envelope towards the center of the envelope, so that these flaps come to bear on top of the stack of products.
  • the system for implementing the method for producing a packaging from two flat blanks advantageously made of cardboard is characterized in that it comprises two gripping devices each of a blank on a stack of blanks and positioning blanks in a vertical position on either side of a support in the form of a horizontal pallet, a device for deforming each blank in application against the peripheral surface of the support, to give it a shape corresponding to the periphery of the pallet, means for assembling the vertical edges of the deformed blanks, a device for folding over the flaps provided at the horizontal upper edge of each blank, towards the axis of the envelope formed by the deformation and assembly of the blanks and means for fixing the flaps in their folded position.
  • a conveyor 1 brings pallet-shaped supports 2 on which the products are stacked so as to form a stack of substantially parallelepiped shape, indicated at 3, at a first packing station A in which the pallet 2 with the stack of products 3 is wrapped by assembling two blanks 5, 6 each taken from a stack respectively 7, 8 of superimposed flat blanks and shaped into a half-carton with cross section of a U, arranged vertically, c that is to say perpendicular to the horizontal arrangement of the pallet 2.
  • the half-cartons bear the reference symbols 9 and 10.
  • FIG. 1 shows the packaging in progress, after the formation of the half carton 9 in pressed application against stacking of products 3.
  • a blank 5 or 6 is rectangular in shape and comprises a central part a , between two flaps b , and flaps e and f connected to the central part a and to the flaps b by fold lines d . Between the central part a and the shutters, there are fold lines b .
  • each stack of flat blanks resting on an elevation table 11 is associated with a device 12 for gripping the blanks 5 or 6 of the stack 7 or 8 and positioning these blanks next to the pallet 2 in a vertical position, parallel to the direction of transport indicated by arrows F1 of the conveyor 1.
  • each device 12 comprises a frame 13 carrying a number of suction cups 14 arranged in a same plan. This frame is suspended from a carriage 16 mounted horizontally movable on guide rails 17 carried by a support structure 18. The rails 17 extend horizontally and perpendicular to the axis of the conveyor indicated by the arrow F1. The carriage can be moved along the rails 17 by any suitable device, for example a hydraulic jack device 19. The end of the piston rod indicated at 20 is fixed at 21 to the carriage 16.
  • the frame 13 is made up of two parts 23, 24.
  • the part 24 which carries the suction cups 14 is articulated to the part 23, so as to pivot around an axis 25 which extends horizontally and parallel to the conveyor 1.
  • the part 23 is fixed to the free end of a piston rod 26 of a jack 27 mounted on the carriage 16.
  • the frame 16 is therefore vertically movable under the carriage 16, by actuation of the jack 27.
  • the pivoting of the part 24 of the frame 16 around the axis 25 is effected under the effect of a jack 28 mounted on the carriage 16 and whose piston rod 29 is articulated at the free end of a lug 30 which is integral with the part of frame 24 and extends perpendicularly over the surface of the latter, which is opposite to that carrying the suction cups 14.
  • the carriage 16 can be moved between a position for gripping the flat blanks on the corresponding stack (FIG. 3) in which the frame 13 is arranged horizontally, and a pivoting position for the frame part 24 with a blank held by the suction cups 14 in the space between the stack and the conveyor, as shown diagrammatically in FIG. 1 and shown in detail in FIG. 4.
  • the gripping and positioning device 12 of the blanks also includes a device 33 adapted to receive from the frame 13 of the blanks which have been brought into their vertical position and to guide these blanks in their position next to the pallet 2 with its load to be wrapped .
  • This device 13 comprises at each vertical edge of the blanks a pair of guide rails 34 and two members 35 on which the blanks 6 come to rest by the end portions of their lower horizontal edge.
  • These support members 35 are vertically movable each along a vertical upright 36, by means of any suitable known control means.
  • Figure 1 also shows at 38 two means, in the form of guns, for applying a line of glue indicated at 39 on the face of the blank 6 facing the pallet 2 and the products 3 to be wrapped, during its vertical displacement from its high vertical position shown in Figures 4 and 1 and the final low position also shown in Figure 1.
  • the glue lines thus extend vertically near the vertical edges of the blanks.
  • a device 41 is provided for transferring, by a translational movement, the blank 6 from its final low position to the position in which the blank is applied by its central part a against the pallet 2 and the stack of products 3, the vertical fold lines b being at the level of the vertical edges of the stack 3.
  • the transfer of the blank 6 is carried out by a movable push plate 42 under the effect of a jack schematically indicated in 43.
  • a jack schematically indicated in 43.
  • the elements which are essential for understanding and their realization have been represented so as not to overload the figure.
  • At the plate 42 are articulated at each vertical edge at the top and bottom two legs 45 which are brought to carry out a pivoting movement between a position parallel to the plate 42 and the position indicated in FIG. 1, perpendicular to the plate 42. This pivoting movement is carried out using jacks 46 interposed between the plate 42 and a projection 47 of the legs.
  • the pivoting of the legs 45 ensures the folding of the flaps c around the folding lines d , giving the blanks the configuration shown in the shape of a U.
  • the packaging system according to the invention further comprises devices for folding the small flaps f of the blank on the top of the stack 3.
  • This device comprises for this purpose, associated with each flap, a push rod 50 actuated by a jack indicated in 51.
  • This device is also only schematically indicated so as not to overload the figure.
  • the device for folding the small flaps is arranged at work station A. In this same station are also provided means for pre-crushing the large flaps e . These means are only indicated diagrammatically and comprise a push rod 52 actuated by a cylinder 53 oriented obliquely.
  • a push rod 52 is provided for the large flap e of each blank 5 and 6.
  • the system according to the invention comprises a second work station B located downstream of the first station A. Between the two stations A and B are provided two guns for applying glue 55. These guns are arranged so that each can be applied to the small flap f of each half-carton a line of glue to an area on which the large flap e of this half-carton will be folded back. Consequently, a pistol 55 is associated with each half-carton. Between the two stations A and B is also arranged, downstream of the guns 55, a device 56 for closing the large flaps e . This device comprises, for each flap a strip 57 which extends parallel to the conveyor 1 above each large flap.
  • the rods 57 are slightly inclined downwards in the direction of the arrow F1 of the conveyor so that the forward movement of the packed pallet, from station A, causes the large flaps to gradually fold back.
  • the two rods 57 are connected by a transverse element 58. In the center of the latter is fixed the piston rod of a jack 59 intended to apply a vertical movement to the rods
  • the workstation B is equipped with a pressing device 61 which comprises a horizontal support plate 62 vertically movable under the effect of a jack 63 and carrying at each corner a horizontal plate, for example square 64.
  • a pressing device 61 which comprises a horizontal support plate 62 vertically movable under the effect of a jack 63 and carrying at each corner a horizontal plate, for example square 64.
  • the plate 62 and the plates 64 are arranged such that a plate 64 can exert on each large flap at its corners a pressure ensuring the attachment of the large flap on the small flaps previously folded, by effect lift-off.
  • the system according to the invention operates in the manner next:
  • the conveyor 1 brings a pallet 2 to the workstation A.
  • the half-carton 9 is first formed from a flat blank 5, as indicated in the description of the structure which has just been made and illustrated by arrows. Blanks are transported while being held by the suction cups 14 controlled by any known suitable means. After pivoting the blanks in the vertical position according to Figure 4, the suction cups are controlled to release the blanks so that they can be brought into their low position.
  • the half-carton 10 is produced from a flat blank 6. The two half-cartons overlap at their vertical edges so that the two half-cartons are joined together along the lines. gluing 39.
  • the movement is again put in motion conveyor 1 to bring the pallet and its load which has just been packed to work station B.
  • the large flaps are folded over the small flaps using device 56 after the adhesive has been applied to the upper surface of the small flaps in the area of contact with the large flaps.
  • the pressing device 61 at station B secures the flaps, by exerting pressure on the bonding zones.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Abstract

The invention concerns a method for packing objects stacked on a support such as a pallet. According to this method an envelope is formed which surrounds the objects (3) starting with at least one blank (5, 6) made from packaging material, such as cardboard, provided with folding and cutting lines defining flaps (e, f). The method is characterised in that an envelope is formed with an axis perpendicular to the stacking surface of the support (1), around the latter, by deformation of at least one blank (5, 6) initially disposed perpendicular to the support and the envelope is firmly attached to the support (1) in its desired relative position. The invention is for use in the field of packaging. <IMAGE>

Description

L'invention concerne un procédé d'emballage de produits empilés sur un support tel qu'une palette, selon lequel on réalise une enveloppe entourant les produits à partir d'au moins un flan en un matériau d'emballage, tel qu'en carton, pourvu de lignes de pliage et de coupure définissant des rabats et un système pour la mise en oeuvre du procédé.The invention relates to a method of packaging products stacked on a support such as a pallet, according to which an envelope surrounding the products is produced from at least one blank made of a packaging material, such as cardboard. , provided with fold and cut lines defining flaps and a system for carrying out the method.

Jusqu'à présent, aucune solution simple à mettre en oeuvre n'a été trouvée au problème d'emballage de produits empilés sur un support tel qu'une palette et qui en même temps assure une extraction aisée des produits en vue de leur utilisation.Until now, no simple solution to implement has been found to the problem of packaging products stacked on a support such as a pallet and which at the same time ensures easy extraction of the products for their use.

L'invention a pour but de proposer une telle solution simple et aisément applicable au problème qui vient d'être énoncé.The object of the invention is to propose such a simple and easily applicable solution to the problem which has just been stated.

Pour atteindre ce but, le procédé selon l'invention est caractérisé en ce que l'on forme une enveloppe à axe perpendiculaire à la surface d'empilement du support, autour de celui-ci, par déformation d'un flan initialement disposé perpendiculairement au support et solidarise l'enveloppe du support, dans sa position relative souhaitée.To achieve this object, the method according to the invention is characterized in that an envelope is formed with an axis perpendicular to the stacking surface of the support, around the latter, by deformation of a blank initially arranged perpendicular to the support and secures the envelope of the support, in its desired relative position.

Selon une caractéristique avantageuse de l'invention, on forme l'enveloppe à partir de deux flans plats disposés verticalement, avec des lignes de pliage verticales, autour d'un support à surface d'empilement horizontal, de façon que les bords verticaux des flans se chevauchent et assemble les flans le long de ces bords se chevauchant.According to an advantageous characteristic of the invention, the envelope is formed from two flat blanks arranged vertically, with vertical fold lines, around a support with a horizontal stacking surface, so that the vertical edges of the blanks overlap and assemble the blanks along these edges overlapping.

Selon une autre caractéristique avantageuse de l'invention, on réalise l'enveloppe autour du support en forme de palette sur lequel des produits sont empilés et solidarise l'enveloppe de la palette par repliage de rabats prévus à l'extrémité supérieure de l'enveloppe en direction du centre de l'enveloppe, de façon que ces rabats viennent en appui sur le dessus de l'empilement des produits.According to another advantageous characteristic of the invention, the envelope is produced around the pallet-shaped support on which products are stacked and secures the envelope of the pallet by folding flaps provided at the upper end of the envelope towards the center of the envelope, so that these flaps come to bear on top of the stack of products.

Le système pour la mise en oeuvre du procédé pour la réalisation d'un emballage à partir de deux flans plats avantageusement en carton est caractérisé en ce qu'il comprend deux dispositifs de préhension chacun d'un flan sur une pile de flans et de positionnement des flans dans une position verticale de part et d'autre d'un support en forme de palette horizontale, un dispositif de déformation de chaque flan en application contre la surface périphérique du support, pour lui conférer une forme correspondant au pourtour de la palette, des moyens d'assemblage des bords verticaux des flans déformés, un dispositif de repliage de rabats prévu au niveau du bord supérieur horizontal de chaque flan, vers l'axe de l'enveloppe formée par la déformation et l'assemblage des flans et des moyens de fixation des rabats dans leur position repliée.The system for implementing the method for producing a packaging from two flat blanks advantageously made of cardboard is characterized in that it comprises two gripping devices each of a blank on a stack of blanks and positioning blanks in a vertical position on either side of a support in the form of a horizontal pallet, a device for deforming each blank in application against the peripheral surface of the support, to give it a shape corresponding to the periphery of the pallet, means for assembling the vertical edges of the deformed blanks, a device for folding over the flaps provided at the horizontal upper edge of each blank, towards the axis of the envelope formed by the deformation and assembly of the blanks and means for fixing the flaps in their folded position.

L'invention sera mieux comprise et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement au cours de la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels :

  • La figure 1 est une vue en perspective et schématique d'un système d'emballage selon la présente invention ;
  • La figure 2 est une vue schématique de dessus d'un système selon la figure 1 ;
  • Les figures 3 et 4 sont des vues en perspective du dispositif de préhension et de positionnement des flans, indiqué en 3 sur la figure 1 et montrent ce dispositif en deux positions différentes ; et
  • La figure 5 est une vue en perspective d'un emballage réalisé par le système selon l'invention.
The invention will be better understood and other objects, characteristics, details and advantages thereof will appear more clearly during the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example illustrating a mode of the invention and in which:
  • Figure 1 is a perspective and schematic view of a packaging system according to the present invention;
  • Figure 2 is a schematic top view of a system according to Figure 1;
  • Figures 3 and 4 are perspective views of the device for gripping and positioning the blanks, indicated at 3 in Figure 1 and show this device in two different positions; and
  • Figure 5 is a perspective view of a package produced by the system according to the invention.

Comme le montre la figure 1, un convoyeur 1 amène des supports en forme de palette 2 sur lesquels les produits sont empilés de façon à former un empilement de forme sensiblement parallélépipèdique, indiqué en 3, à un premier poste d'emballage A dans lequel la palette 2 avec l'empilement de produits 3 est enveloppé par assemblage de deux flans 5, 6 chacun pris sur une pile respectivement 7, 8 de flans plats superposés et conformé en demi-carton à section transversale d'un U, disposé verticalement, c'est-à-dire perpendiculairement à la disposition horizontale de la palette 2. A la figure 5, les demi-cartons portent les symboles de référence 9 et 10. La figure 1 montre l'emballage en cours de réalisation, après la formation du demi-carton 9 en application pressée contre l'empilement de produits 3.As shown in FIG. 1, a conveyor 1 brings pallet-shaped supports 2 on which the products are stacked so as to form a stack of substantially parallelepiped shape, indicated at 3, at a first packing station A in which the pallet 2 with the stack of products 3 is wrapped by assembling two blanks 5, 6 each taken from a stack respectively 7, 8 of superimposed flat blanks and shaped into a half-carton with cross section of a U, arranged vertically, c that is to say perpendicular to the horizontal arrangement of the pallet 2. In FIG. 5, the half-cartons bear the reference symbols 9 and 10. FIG. 1 shows the packaging in progress, after the formation of the half carton 9 in pressed application against stacking of products 3.

En se reportant à la figure 2, on constate qu'un flan 5 ou 6 est de forme rectangulaire et comprend une partie centrale a, entre deux volets b, et des rabats e et f reliés à la partie centrale a et aux volets b par des lignes de pliage d. Entre la partie centrale a et les volets, il y a des lignes de pliage b.Referring to FIG. 2, it can be seen that a blank 5 or 6 is rectangular in shape and comprises a central part a , between two flaps b , and flaps e and f connected to the central part a and to the flaps b by fold lines d . Between the central part a and the shutters, there are fold lines b .

Comme le montre la figure 1, à chaque pile de flans plats reposant sur une table d'élévation 11 est associé un dispositif 12 de préhension des flans 5 ou 6 de la pile 7 ou 8 et de positionnement de ces flans à côté de la palette 2 en position verticale, parallèlement à la direction de transport indiquée par des flèches F1 du convoyeur 1. Comme il ressort plus clairement des figures 3 et 4, chaque dispositif 12 comprend un cadre 13 porteur d'un certain nombre de ventouses 14 disposées dans un même plan. Ce cadre est suspendu à un chariot 16 monté horizontalement mobile sur des rails de guidage 17 portés par une structure de support 18. Les rails 17 s'étendent horizontalement et perpendiculairement à l'axe du convoyeur indiqué par la flèche F1. Le chariot est déplaçable le long des rails 17 par tout dispositif approprié, par exemple un dispositif à vérin hydraulique 19. L'extrémité de la tige de piston indiquée en 20 est fixée en 21 au chariot 16.As shown in Figure 1, each stack of flat blanks resting on an elevation table 11 is associated with a device 12 for gripping the blanks 5 or 6 of the stack 7 or 8 and positioning these blanks next to the pallet 2 in a vertical position, parallel to the direction of transport indicated by arrows F1 of the conveyor 1. As is more clearly apparent from FIGS. 3 and 4, each device 12 comprises a frame 13 carrying a number of suction cups 14 arranged in a same plan. This frame is suspended from a carriage 16 mounted horizontally movable on guide rails 17 carried by a support structure 18. The rails 17 extend horizontally and perpendicular to the axis of the conveyor indicated by the arrow F1. The carriage can be moved along the rails 17 by any suitable device, for example a hydraulic jack device 19. The end of the piston rod indicated at 20 is fixed at 21 to the carriage 16.

Le cadre 13 se compose de deux parties 23, 24. La partie 24 qui porte les ventouses 14 est articulée à la partie 23, de façon pivotante autour d'un axe 25 qui s'étend horizontalement et parallèlement au convoyeur 1. La partie 23 est fixée à l'extrémité libre d'une tige de piston 26 d'un vérin 27 monté sur le chariot 16. Le cadre 16 est donc verticalement mobile sous le chariot 16, par l'actionnement du vérin 27. Le pivotement de la partie 24 du cadre 16 autour de l'axe 25 est effectué sous l'effet d'un vérin 28 monté sur le chariot 16 et dont la tige de piston 29 est articulée à l'extrémité libre d'une patte 30 qui est solidaire de la partie de cadre 24 et s'étend perpendiculairement sur la surface de cette dernière, qui est opposée à celle portant les ventouses 14.The frame 13 is made up of two parts 23, 24. The part 24 which carries the suction cups 14 is articulated to the part 23, so as to pivot around an axis 25 which extends horizontally and parallel to the conveyor 1. The part 23 is fixed to the free end of a piston rod 26 of a jack 27 mounted on the carriage 16. The frame 16 is therefore vertically movable under the carriage 16, by actuation of the jack 27. The pivoting of the part 24 of the frame 16 around the axis 25 is effected under the effect of a jack 28 mounted on the carriage 16 and whose piston rod 29 is articulated at the free end of a lug 30 which is integral with the part of frame 24 and extends perpendicularly over the surface of the latter, which is opposite to that carrying the suction cups 14.

Comme le montrent notamment les figures 3 et 4 le chariot 16 est déplaçable entre une position de préhension des flans plats sur la pile correspondante (figure 3) dans laquelle le cadre 13 est disposé horizontalement, et une position de pivotement de la partie de cadre 24 avec un flan maintenu par les ventouses 14 dans l'espace entre la pile et le convoyeur, comme cela est indiqué schématiquement à la figure 1 et montré de façon détaillée à la figure 4.As shown in particular in FIGS. 3 and 4, the carriage 16 can be moved between a position for gripping the flat blanks on the corresponding stack (FIG. 3) in which the frame 13 is arranged horizontally, and a pivoting position for the frame part 24 with a blank held by the suction cups 14 in the space between the stack and the conveyor, as shown diagrammatically in FIG. 1 and shown in detail in FIG. 4.

Le dispositif de préhension et de positionnement 12 des flans comprend également un dispositif 33 adapté pour recevoir du cadre 13 des flans qui ont été amenés dans leur position verticale et pour guider ces flans dans leur position à côté de la palette 2 avec sa charge à envelopper. Ce dispositif 13 comporte au niveau de chaque bord vertical des flans une paire de rails de guidage 34 et deux organes 35 sur lesquels viennent se poser les flans 6 par les parties extrêmes de leur bord horizontal inférieur. Ces organes d'appui 35 sont verticalement mobiles chacun le long d'un montant vertical 36, par l'intermédiaire de tout moyen de commande connu approprié. La figure 1 montre également en 38 deux moyens, en forme de pistolets, d'application d'une ligne de colle indiquée en 39 sur la face du flan 6 tournée vers la palette 2 et les produits 3 à envelopper, lors de son déplacement vertical de sa position verticale haute représentée aux figures 4 et 1 et la position basse finale également représentée à la figure 1. Les lignes de colle s'étendent ainsi verticalement près des bords verticaux des flans.The gripping and positioning device 12 of the blanks also includes a device 33 adapted to receive from the frame 13 of the blanks which have been brought into their vertical position and to guide these blanks in their position next to the pallet 2 with its load to be wrapped . This device 13 comprises at each vertical edge of the blanks a pair of guide rails 34 and two members 35 on which the blanks 6 come to rest by the end portions of their lower horizontal edge. These support members 35 are vertically movable each along a vertical upright 36, by means of any suitable known control means. Figure 1 also shows at 38 two means, in the form of guns, for applying a line of glue indicated at 39 on the face of the blank 6 facing the pallet 2 and the products 3 to be wrapped, during its vertical displacement from its high vertical position shown in Figures 4 and 1 and the final low position also shown in Figure 1. The glue lines thus extend vertically near the vertical edges of the blanks.

Un dispositif 41 est prévu pour transférer, par un mouvement de translation, le flan 6 de sa position basse finale dans la position dans laquelle le flan est appliqué par sa partie centrale a contre la palette 2 et l'empilement de produits 3, les lignes de pliage vertical b se trouvant au niveau des arêtes verticales de l'empilement 3. Le transfert du flan 6 est effectué par une plaque-poussoir 42 mobile sous l'effet d'un vérin schématiquement indiqué en 43. De ces moyens de transfert on a seulement représenté les éléments qui sont essentiels pour la compréhension et leur réalisation pour ne pas surcharger la figure. A la plaque 42 sont articulées à chaque bord vertical en haut et en bas deux pattes 45 qui sont amenées à effectuer un mouvement de pivotement entre une position parallèle à la plaque 42 et la position indiquée à la figure 1, perpendiculaire à la plaque 42. Ce mouvement de pivotement est effectué à l'aide de vérins 46 interposés entre la plaque 42 et une excroissance 47 des pattes.A device 41 is provided for transferring, by a translational movement, the blank 6 from its final low position to the position in which the blank is applied by its central part a against the pallet 2 and the stack of products 3, the vertical fold lines b being at the level of the vertical edges of the stack 3. The transfer of the blank 6 is carried out by a movable push plate 42 under the effect of a jack schematically indicated in 43. Of these transfer means only the elements which are essential for understanding and their realization have been represented so as not to overload the figure. At the plate 42 are articulated at each vertical edge at the top and bottom two legs 45 which are brought to carry out a pivoting movement between a position parallel to the plate 42 and the position indicated in FIG. 1, perpendicular to the plate 42. This pivoting movement is carried out using jacks 46 interposed between the plate 42 and a projection 47 of the legs.

Le pivotement des pattes 45 assure le pliage des volets c autour des lignes de pliage d, conférant aux flans la configuration représentée en forme d'un U.The pivoting of the legs 45 ensures the folding of the flaps c around the folding lines d , giving the blanks the configuration shown in the shape of a U.

Le système d'emballage selon l'invention comporte en outre des dispositifs de repliage des petits rabats f du flan sur le dessus de l'empilement 3. Ce dispositif comprend à cette fin, associée à chaque rabat une baguette-poussoir 50 actionnée par un vérin indiqué en 51. Ce dispositif est également seulement schématiquement indiqué pour ne pas surcharger la figure. Le dispositif de repliage des petits rabats est disposé au poste de travail A. Dans ce même poste sont également prévus des moyens de précassage des grands rabats e. Ces moyens sont seulement indiqués schématiquement et comportent une baguette-poussoir 52 actionnée par un vérin 53 orienté obliquement. Une baguette-poussoir 52 est prévue pour le grand rabat e de chaque flan 5 et 6.The packaging system according to the invention further comprises devices for folding the small flaps f of the blank on the top of the stack 3. This device comprises for this purpose, associated with each flap, a push rod 50 actuated by a jack indicated in 51. This device is also only schematically indicated so as not to overload the figure. The device for folding the small flaps is arranged at work station A. In this same station are also provided means for pre-crushing the large flaps e . These means are only indicated diagrammatically and comprise a push rod 52 actuated by a cylinder 53 oriented obliquely. A push rod 52 is provided for the large flap e of each blank 5 and 6.

Le système selon l'invention comprend un deuxième poste de travail B situé en aval du premier poste A. Entre les deux postes A et B sont prévus deux pistolets d'application de colle 55. Ces pistolets sont disposés de façon à pouvoir appliquer chacun sur le petit rabat f de chaque demi-carton une ligne de colle à une zone sur laquelle sera rabattu postérieurement le grand rabat e de ce demi-carton. Par conséquent, un pistolet 55 est associé à chaque demi-carton. Entre les deux postes A et B est également disposé, en aval des pistolets 55, un dispositif 56 de fermeture des grands rabats e. Ce dispositif comporte, pour chaque rabat une baguette 57 qui s'étend parallèlement au convoyeur 1 au-dessus de chaque grand rabat. Les baguettes 57 sont légèrement inclinées vers le bas en direction du sens de la flèche F1 du convoyeur de façon que le mouvement d'avancement de la palette emballée, depuis le poste A, provoque le repliage progressif des grands rabats. Les deux baguettes 57 sont reliées par un élément transversal 58. Au centre de ce dernier est fixée la tige de piston d'un vérin 59 destiné à appliquer aux baguettes un mouvement verticalThe system according to the invention comprises a second work station B located downstream of the first station A. Between the two stations A and B are provided two guns for applying glue 55. These guns are arranged so that each can be applied to the small flap f of each half-carton a line of glue to an area on which the large flap e of this half-carton will be folded back. Consequently, a pistol 55 is associated with each half-carton. Between the two stations A and B is also arranged, downstream of the guns 55, a device 56 for closing the large flaps e . This device comprises, for each flap a strip 57 which extends parallel to the conveyor 1 above each large flap. The rods 57 are slightly inclined downwards in the direction of the arrow F1 of the conveyor so that the forward movement of the packed pallet, from station A, causes the large flaps to gradually fold back. The two rods 57 are connected by a transverse element 58. In the center of the latter is fixed the piston rod of a jack 59 intended to apply a vertical movement to the rods

Le poste de travail B est équipé d'un dispositif presseur 61 qui comporte une plaque de support horizontale 62 verticalement mobile sous l'effet d'un vérin 63 et portant au niveau de chaque coin une plaquette horizontale, par exemple carrée 64. Comme le montre la figure 1, la plaque 62 et les plaquettes 64 sont arrangées de telle façon qu'une plaquette 64 puisse exercer sur chaque grand rabat au niveau de ses coins une pression assurant la solidarisation du grand rabat sur les petits rabats préalablement repliés, par effet de collage.The workstation B is equipped with a pressing device 61 which comprises a horizontal support plate 62 vertically movable under the effect of a jack 63 and carrying at each corner a horizontal plate, for example square 64. As the shows Figure 1, the plate 62 and the plates 64 are arranged such that a plate 64 can exert on each large flap at its corners a pressure ensuring the attachment of the large flap on the small flaps previously folded, by effect lift-off.

Le système selon l'invention fonctionne de la manière suivante:The system according to the invention operates in the manner next:

Le convoyeur 1 amène une palette 2 au poste de travail A. A l'aide du dispositif 12 associé à la pile 7, on forme tout d'abord le demi-carton 9 à partir d'un flan plat 5, de la manière indiquée dans la description de la structure qui vient d'être faite et illustrée par des flèches. Des flans sont transportés en étant maintenus par les ventouses 14 commandées par tout moyen approprié connu. Après le pivotement des flans dans la position verticale selon la figure 4, les ventouses sont commandées pour relâcher les flans pour qu'ils puissent être amenés dans leur position basse. Ensuite, on réalise le demi-carton 10 à partir d'un flan plat 6. Les deux demi-cartons se chevauchent au niveau de leurs bords verticaux de façon qu'on obtienne un effet de solidarisation des deux demi-cartons le long des lignes de collage 39. Après le repliage des petits rabats f des deux demi-cartons sur l'empilage de produits 3 et le précassage des grands rabats e, à l'aide des baguettes-poussoirs 50 et 52, on met à nouveau en mouvement le convoyeur 1 pour amener la palette et sa charge qui vient d'être emballée au poste de travail B. Entre les deux postes, les grands rabats sont repliés sur les petits rabats à l'aide du dispositif 56 après l'application de la colle sur la surface supérieure des petits rabats dans la zone de contact avec les grands rabats. Le dispositif presseur 61 au poste B assure la fixation des rabats, en exerçant une pression sur les zones de collage.The conveyor 1 brings a pallet 2 to the workstation A. With the device 12 associated with the stack 7, the half-carton 9 is first formed from a flat blank 5, as indicated in the description of the structure which has just been made and illustrated by arrows. Blanks are transported while being held by the suction cups 14 controlled by any known suitable means. After pivoting the blanks in the vertical position according to Figure 4, the suction cups are controlled to release the blanks so that they can be brought into their low position. Next, the half-carton 10 is produced from a flat blank 6. The two half-cartons overlap at their vertical edges so that the two half-cartons are joined together along the lines. gluing 39. After folding the small flaps f of the two half-cartons onto the stack of products 3 and pre-crushing the large flaps e , using the push rods 50 and 52, the movement is again put in motion conveyor 1 to bring the pallet and its load which has just been packed to work station B. Between the two stations, the large flaps are folded over the small flaps using device 56 after the adhesive has been applied to the upper surface of the small flaps in the area of contact with the large flaps. The pressing device 61 at station B secures the flaps, by exerting pressure on the bonding zones.

On pourrait ainsi prévoir en bas du demi-carton des pattes g qui permettraient la fixation des cartons à la palette par exemple par agrafage.One could thus provide at the bottom of the half-cardboard tabs g which would allow the cardboard boxes to be fixed to the pallet, for example by stapling.

Claims (15)

Procédé d'emballage de produits empilés sur un support tel qu'une palette, selon lequel on réalise une enveloppe entourant les produits à partir d'au moins un flan en un matériau d'emballage, tel que du carton, pourvu de lignes de pliage et de coupure définissant des rabats, caractérisé en ce que l'on forme une enveloppe à axe perpendiculaire à la surface d'empilement du support, autour de celui-ci, par déformation d'au moins un flan initialement disposé perpendiculairement au support et solidarise l'enveloppe du support, dans sa position relative souhaitée.Method for packaging products stacked on a support such as a pallet, according to which an envelope surrounding the products is produced from at least one blank made of a packaging material, such as cardboard, provided with fold lines and cutting defining flaps, characterized in that an envelope is formed with an axis perpendicular to the stacking surface of the support, around the latter, by deformation of at least one blank initially placed perpendicular to the support and secured the envelope of the support, in its desired relative position. Procédé selon la revendication 1, caractérisé en ce que l'on forme l'enveloppe à partir de deux flans plats disposés verticalement, avec des lignes de pliage verticales, autour d'un support à surface d'empilement horizontal, de façon que les bords verticaux des flans se chevauchent et assemble les flans le long de ces bords se chevauchant.Method according to claim 1, characterized in that the envelope is formed from two flat blanks arranged vertically, with vertical fold lines, around a support with a horizontal stacking surface, so that the edges vertical overlapping blanks and joining the blanks along these overlapping edges. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que l'on réalise l'enveloppe autour du support en forme de palette sur laquelle des produits sont empilés et solidarisent l'enveloppe de la palette par repliage des deux rabats prévus à l'extrémité supérieure de l'enveloppe en direction du centre de l'enveloppe, de façon que ces rabats viennent en appui sur le dessus de l'empilement des produits.Method according to one of claims 1 or 2, characterized in that the envelope is produced around the pallet-shaped support on which products are stacked and secure the envelope of the pallet by folding the two flaps provided at the upper end of the envelope in the direction of the center of the envelope, so that these flaps come to bear on top of the stack of products. Système pour la mise en oeuvre du procédé selon l'une des revendications 1 à 3 pour la réalisation de l'emballage à partir de deux flans plats avantageusement en carton, caractérisé en ce qu'il comprend deux dispositifs de préhension chacun d'un flan sur une pile de flans et de positionnement des flans dans une position verticale de part et d'autre d'un support en forme de palette horizontale, un dispositif de déformation de chaque flan en application contre la surface périphérique du support, pour lui conférer une forme correspondant au pourtour de la palette, des moyens d'assemblage des bords verticaux des flans déformés, un dispositif de repliage de rabats prévu au niveau du bord supérieur horizontal de chaque flan, vers l'axe de l'enveloppe formé par la déformation et l'assemblage des flans, et des moyens de fixation des rabats dans leur position repliée.System for implementing the method according to one of claims 1 to 3 for producing the packaging from two flat blanks advantageously made of cardboard, characterized in that it comprises two gripping devices each of a blank on a pile blanks and positioning the blanks in a vertical position on either side of a support in the form of a horizontal pallet, a device for deforming each blank in application against the peripheral surface of the support, to give it a shape corresponding to the periphery of the pallet, means for assembling the vertical edges of the deformed blanks, a device for folding over flaps provided at the horizontal upper edge of each blank, towards the axis of the envelope formed by the deformation and assembly blanks, and means for fixing the flaps in their folded position. Système selon la revendication 4, caractérisé en ce que chaque dispositif de préhension et de positionnement (12) comprend un cadre (13) porteur d'un certain nombre de ventouses (14) monté pivotant entre une position horizontale de préhension d'un flan et une position verticale, sur un chariot (16) monté horizontalement mobile dans une structure de support (18) et un dispositif (33) adapté pour recevoir du cadre (13) des flans qui ont été amenés dans leur position verticale et pour guider ces flans dans leur position à côté de la palette (2).System according to claim 4, characterized in that each gripping and positioning device (12) comprises a frame (13) carrying a number of suction cups (14) pivotally mounted between a horizontal position for gripping a blank and a vertical position, on a carriage (16) mounted horizontally mobile in a support structure (18) and a device (33) adapted to receive from the frame (13) blanks which have been brought into their vertical position and to guide these blanks in their position next to the pallet (2). Système selon la revendication 5, caractérisé en ce que le cadre (13) comprend deux parties (23, 24) la partie (23) étant montée verticalement mobile sous le chariot (16) tandis que la partie (24) qui porte les ventouses (14) est articulée à la partie (23), de façon pivotante autour d'un axe horizontal (25).System according to claim 5, characterized in that the frame (13) comprises two parts (23, 24) the part (23) being mounted vertically movable under the carriage (16) while the part (24) which carries the suction cups ( 14) is articulated to the part (23), pivotally about a horizontal axis (25). Système selon la revendication 6, caractérisé en ce que la partie de cadre (23) est fixée à l'extrémité libre d'une tige de piston (26) d'un vérin (27) monté sur le chariot (16).System according to claim 6, characterized in that the frame part (23) is fixed to the free end of a piston rod (26) of a jack (27) mounted on the carriage (16). Système selon l'une des revendications 6 ou 7, caractérisé en ce que la partie de cadre (24) est montée pivotant autour de l'axe (25) de la partie (23) à l'aide d'un vérin (28) monté sur le chariot (16).System according to one of claims 6 or 7, characterized in that the frame part (24) is pivotally mounted about the axis (25) of the part (23) using a jack (28) mounted on the carriage (16). Système selon l'une des revendications 5 à 8, caractérisé en ce que le dispositif (33) de réception de flans comporte, au niveau de chaque bord vertical d'un flan (6), une paire de rails de guidage (34) et deux organes (35) sur lesquels viennent se poser les flans (6) par leur bord horizontal inférieur, les organes d'appui (35) étant verticalement mobiles.System according to one of claims 5 to 8, characterized in that the blank receiving device (33) comprises, at each vertical edge of a blank (6), a pair of guide rails (34) and two members (35) on which the blanks (6) come to rest by their lower horizontal edge, the support members (35) being vertically movable. Système selon la revendication 9, caractérisé par des moyens (38) d'application d'une ligne de colle verticale (39) sur la face des parties du bord vertical du flan (36), tournée vers la palette (2), lors de son déplacement vertical dans sa position basse à côté de la palette.System according to claim 9, characterized by means (38) of applying a vertical line of adhesive (39) to the face of the parts of the vertical edge of the blank (36), facing the pallet (2), when its vertical displacement in its low position next to the pallet. Système selon l'une des revendications 5 à 10, caractérisé en ce qu'il comprend un dispositif (41) pour transférer par un mouvement de translation un flan (6) dans sa position dans laquelle le flan est appliqué par sa partie centrale (a) contre la palette (2) et l'empilement de produits (3), ce dispositif (41) comprenant une plaque poussoir (42) et des pattes (45) articulées à chaque bord vertical de cette plaque, de façon pivotante entre une position parallèle à la plaque (42) et une position perpendiculaire à cette plaque, de façon à assurer le pliage du flan autour des lignes de pliages verticales conférant au flan la configuration en forme d'un U, lors de leurs mouvements de pivotement.System according to one of claims 5 to 10, characterized in that it comprises a device (41) for transferring by a translational movement a blank (6) in its position in which the blank is applied by its central part (a ) against the pallet (2) and the stack of products (3), this device (41) comprising a push plate (42) and lugs (45) articulated at each vertical edge of this plate, so as to pivot between a position parallel to the plate (42) and a position perpendicular to this plate, so as to ensure the folding of the blank around the vertical folding lines giving the blank the U-shaped configuration, during their pivoting movements. Système selon l'une des revendications 5 à 11, pour des flans comportant des lignes de pliage verticales pour conférer à chaque flan une configuration en forme d'un U et dans sa partie supérieure une ligne de pliage horizontale et des découpes entre cette ligne et le bord supérieur, dans le prolongement des lignes de pliage verticales, pour la formation de deux petits rabats latéraux et un grand rabat central, caractérisé en ce qu'il comprend des dispositifs de repliage des petits rabats (f) du flan sur le dessus de l'empilement (3) reposant sur la palette (2), ces dispositifs comprenant des baguettes-poussoirs (50) actionnées avantageusement par un vérin (51) et disposées de façon à pouvoir venir en appui sur ces rabats (f).System according to one of claims 5 to 11, for blanks having vertical fold lines to give each blank a U-shaped configuration and in its upper part a horizontal fold line and cutouts between this line and the upper edge, in line with the vertical fold lines, for the formation of two small flaps side and a large central flap, characterized in that it comprises devices for folding the small flaps (f) of the blank on the top of the stack (3) resting on the pallet (2), these devices comprising rods- pushers (50) actuated advantageously by a jack (51) and arranged so as to be able to come to bear on these flaps (f). Système selon la revendication 11, caractérisé en ce qu'il comprend des moyens d'application de colle (55) sur les zones des petits rabats (f) d'un flan sur lesquels sera rabattu le grand rabat (e) de ce flan.System according to claim 11, characterized in that it comprises means for applying glue (55) to the areas of the small flaps (f) of a blank on which the large flap (e) of this blank will be folded down. Système selon l'une des revendications 12 ou 13, caractérisé en ce qu'il comprend, en aval du dispositif de positionnement et d'application des flans à la palette (2) des baguettes (57) disposées au-dessus de l'empilement de produits et légèrement inclinées vers le bas en direction du sens du mouvement d'avancement de la palette pour venir chacune en contact avec un grand rabat (e) et provoquer le repliage progressif de celui-ci.System according to one of claims 12 or 13, characterized in that it comprises, downstream of the device for positioning and applying the blanks to the pallet (2) of the strips (57) disposed above the stack of products and slightly inclined downwards in the direction of the movement direction of advancement of the pallet to each come into contact with a large flap (e) and cause the progressive folding thereof. Système selon la revendication 16, caractérisé en ce qu'il comprend, en aval des baguettes (57) de repliage progressif des grands rabats, une plaque horizontale (62) verticalement mobile et adaptée pour exercer sur chaque grand rabat au niveau de ces coins une pression assurant la solidarisation du grand rabat (e) sur les petits rabats correspondants (f) préalablement repliés et encollés.System according to claim 16, characterized in that it comprises, downstream of the rods (57) for progressive folding of the large flaps, a horizontal plate (62) vertically movable and adapted to exert on each large flap at these corners a pressure ensuring the joining of the large flap (e) on the corresponding small flaps (f) previously folded and glued.
EP91400145A 1990-01-26 1991-01-23 Method for packaging objects stacked on a support and device for carrying out the method Withdrawn EP0439402A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9000960 1990-01-26
FR9000960A FR2657585B1 (en) 1990-01-26 1990-01-26 METHOD FOR PACKAGING PRODUCTS STACKED ON A CARRIER AND SYSTEM FOR CARRYING OUT SAID METHOD.

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EP0439402A1 true EP0439402A1 (en) 1991-07-31

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1037178C2 (en) * 2009-08-05 2011-02-08 Food Processing Systems WRAP.
WO2014173953A1 (en) * 2013-04-23 2014-10-30 Dücker Group GmbH Device and method for folding over and welding film overhangs during the wrapping of stacked goods with a film
CN110371338A (en) * 2019-08-19 2019-10-25 成都顺利华自动化设备有限公司 Automatically pipe support and tubing automatic bag sheathing equipment are unloaded

Citations (4)

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Publication number Priority date Publication date Assignee Title
US2066449A (en) * 1934-08-20 1937-01-05 Insulite Co Bundling apparatus
US3253379A (en) * 1962-05-16 1966-05-31 Paul J Foradora Method of banding a group of articles
US3896601A (en) * 1972-08-31 1975-07-29 Stone Container Corp Packaging machine using two-blank carton system
CH652366A5 (en) * 1981-10-13 1985-11-15 Flums Ag Maschf Process for the continuous attachment of a protective cardboard wrapping around articles and machine for carrying out the process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2066449A (en) * 1934-08-20 1937-01-05 Insulite Co Bundling apparatus
US3253379A (en) * 1962-05-16 1966-05-31 Paul J Foradora Method of banding a group of articles
US3896601A (en) * 1972-08-31 1975-07-29 Stone Container Corp Packaging machine using two-blank carton system
CH652366A5 (en) * 1981-10-13 1985-11-15 Flums Ag Maschf Process for the continuous attachment of a protective cardboard wrapping around articles and machine for carrying out the process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1037178C2 (en) * 2009-08-05 2011-02-08 Food Processing Systems WRAP.
WO2014173953A1 (en) * 2013-04-23 2014-10-30 Dücker Group GmbH Device and method for folding over and welding film overhangs during the wrapping of stacked goods with a film
CN110371338A (en) * 2019-08-19 2019-10-25 成都顺利华自动化设备有限公司 Automatically pipe support and tubing automatic bag sheathing equipment are unloaded
CN110371338B (en) * 2019-08-19 2024-03-26 成都顺利华自动化设备有限公司 Automatic pipe rack unloading and automatic pipe bagging equipment

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Publication number Publication date
FR2657585A1 (en) 1991-08-02
FR2657585B1 (en) 1992-06-19

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