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WO1992018387A1 - Device for laying a wrapping made from a thin pleated film on a convex body - Google Patents

Device for laying a wrapping made from a thin pleated film on a convex body Download PDF

Info

Publication number
WO1992018387A1
WO1992018387A1 PCT/FR1992/000342 FR9200342W WO9218387A1 WO 1992018387 A1 WO1992018387 A1 WO 1992018387A1 FR 9200342 W FR9200342 W FR 9200342W WO 9218387 A1 WO9218387 A1 WO 9218387A1
Authority
WO
WIPO (PCT)
Prior art keywords
packaging
hamburger
pulleys
roller
toothed wheel
Prior art date
Application number
PCT/FR1992/000342
Other languages
French (fr)
Inventor
Gilbert Capy
Akiva Buchberg
Original Assignee
Gilbert Capy
Akiva Buchberg
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 Gilbert Capy, Akiva Buchberg filed Critical Gilbert Capy
Publication of WO1992018387A1 publication Critical patent/WO1992018387A1/en

Links

Classifications

    • 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
    • B65B11/04—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated

Definitions

  • the invention relates to a device for automatically laying on convex objects, substantially of revolution, of packaging produced from pleated thin films whose folds are fixed on the edges; this device can in particular be used for automatic packaging of hamburgers; in what follows, we take as an example the case of the packaging of a hamburger, but this technique can equally well be applied to products such as pizza, plates or any other object meeting the characteristics of a convex object substantially of revolution.
  • the French patent published under the number FR 2595666-B1 describes a package, consisting of a thin film, formed of coated pleats fixed on the edges; when this packaging is deployed around the hamburger, the central part is deployed while the edges, the folds of which are fixed between them, fold over on the lower and upper faces of the hamburger to partially cover them; only a non-covered central circle remains on both sides.
  • the packaging has been placed manually; this operation requires a knack that must be taught each time to a new employee; and when we know the rate at which they succeed each other in fast food, we understand that this poses a problem. Given the originality of this packaging, there is no machine for its automatic installation which is to be created from scratch.
  • packaging of suitable size is used according to the specifications of the cited patent, the packaging preferably being connected to one another by zones without folds comprising a precut; the precut makes it possible to ensure a continuous feeding of the machine and to separate the packages only when they are placed on the burgers.
  • the packages thus form a continuous strip which can be wound on itself or stored flat by stacking successive lengths of an entire number of packages forming "Z"; this latter configuration makes it possible to deliver the packaging in conventional parallelepipedic cases, the supply device will not be described .
  • the strip in the machine which uses known methods.
  • FIG. 1 represents a perspective view of the arrangement for placing the hamburger package, the latter being removed to show the hamburger support plate, the main gear being exploded to show the indexing device for the hamburger, and the strap to show the paper guide ramp.
  • FIG. 2 represents a perspective view of the arrangement for placing the hamburger packaging during operation, the main toothed wheel, the belt, the packaging, the hamburger, has been exploded to show - the respective position of the various elements, as well as the zone in which the packaging is inserted between the tray and the hamburger.
  • Figure 3 shows a perspective view of the installation of the finished packaging, before removal of the packaged hamburger from the machine.
  • Figure 4 shows a top view of the disposi ⁇ tif, main gear removed, upon arrival of the tray loaded with a hamburger to pack; the roller drive device is only shown as an indication of the difference in speed between the two rollers.
  • FIG. 5 represents a top view of the device, main gear removed, at the stage shown in FIG. 2.
  • Figure 6 shows a view of the device, main gear removed, in the final assembly phase shown in Figure 3; the hamburger indexing device is not shown.
  • the device according to the invention comprises a belt 1 (FIG. 2) making it possible to apply the central part 2 of the deployed packaging 3 to the hamburger 4; the peripheral part 5 of the hamburger and the belt 1 move, at the same linear speed, pinching between them the central part 2 of the deployed packaging 3 which is also fed at the same linear speed; the packaging folds over 6 and below the hamburger while the hamburger is rotated on a plate 7 (Fig.l) which is fixed during the operation of laying the packaging and on which it slides.
  • the packaging first folds under the tray 7 whose edge 8 in this area has the substantially circular shape of the hamburger, but which is fixed; a ramp 9 (Fig.
  • the belt 1 is maneuvered by three pulleys 12, 13 and 14 (Fig.l) with axes • parallel, movable with respect to each other, so as to maintain sufficient tension of the belt 1 during the movement of fitting the packaging to avoid derailments;
  • two of the pulleys 12 and 13 are of the same diameter and have their axes 24 and 20 which can describe a circular arc, the axis of which is substantially the same as the center of the hamburger, when the latter is in place for fitting the packaging, and parallel to that of the pulleys 12,13,14;
  • the pulleys 12 and 13 are, for example, connected to the axis 15 by the arms 16 and 17 which pivot around the latter; the pulleys 12 .
  • the third pulley 14 ensures the tension of the belt 1; its axis 19 is, for example, connected by an arm 21 to the axis 20 of one of the other two pulleys 13 or 14 and moves in an arc around it; a return spring 22 (Fig. 4) ensures permanent tension; the movement of the two pulleys 12 and 1 (Fig.l) which are in contact with the hamburger 4 is ensured by a main toothed wheel 23 centered on the same axis 15 as that around which the axes 24 and 20 of the pulleys 12 and 13 rotate. and of a diameter substantially equal to that of hamburger 4 (Fig.
  • the first two pulleys 12 and 13 (Fig.l) each have at the end of their axis 24 and 20 a satellite gear 25 and 26, substantially of the diameter of the pulleys 12 and 13, which meshes on the main gear 23.
  • the main gear 23 rotates at the winding speed of the deployed packaging 3 on the hamburger.
  • One of the pulleys 13 is driving and has a device 27 allowing controlled indexing with respect to the main toothed wheel 23 or with respect to a fixed point of the chassis; under these conditions the pulley 13 (Fig. 2) can move, without turning on itself, being driven by the main wheel 23, or else turn on itself (Fig. 3), around its axis 20 kept fixed to the chassis 28 by the indexing device 27, driven in rotation by the main toothed wheel 23.
  • the other pulley 12 is driven and has the same control system - indexing die 29.
  • the third pulley 14 is free and is positioned so as to make up for any variation in tension during movements.
  • the deployed packaging 3 As regards the supply of the deployed packaging 3 (Fig. 2), it consists of two rollers 30 and 31 whose axes 32 and 33 are parallel to those of the pulleys 12, 13 and 14 and which press the packaging against a wall 34 on which the packaging slides.
  • the first roller 30 (Fig.2) rotates at a tangential speed which is substantially equal to that of the belt 1; upstream of the latter, another roller 31 rotates at a lower speed.
  • the pitch of the deployed packaging 3 is characterized by the sum of the widths A and B of two successive bands constituting a fold, the tangential speed ratio between the two rollers 31 and 30 is equal to (AB) / (A + B); if the rollers 30 and 31 are of the same diameter, the ratio of the tangential speeds is the same as the ratio of the rotational speeds.
  • the spacing of the rollers 30 and 31 is made so that the undeployed packaging 35 has sufficient space to deploy between the moment when it has passed under the roller 31 at low speed and that when it passes on roller 30 at high speed.
  • the driving of the rollers 30 and 31 can optionally be done by the large toothed wheel 23 with a declutching device making it possible to be driven or not.
  • the axes 32 and 33 of these rollers can move slightly relative to the support plate 34 to facilitate the introduction of the packaging 35 and take account of their thickness variation.
  • One of the characteristics of this packaging deployment device is that when the roller 31 rotating at low speed begins to roll over an area without wrinkles, it delivers a length packaging 35 insufficient to that requested by the roller 30 rotating at high speed; the flexible film constituting the packaging stretches and under these conditions the precut tears separating the packaging 35 during deployment of the following packaging.
  • the deployment of the deployed packaging 3 (fig. 4) on the hamburger 4 is carried out as follows: Firstly, the driving pulleys 13 and driven 14 are side by side in the vicinity of zone 36 for delivering the deployed packaging 3.
  • the rollers 31 and 30 begin to deploy a sufficient packaging length to be interposed between the belt 1 and the hambur ⁇ ger 4 which is still outside the area of packaging.
  • it is the main toothed wheel 23 which is driving the rollers 30 and 31, it can simultaneously rotate the two pulleys 12 and 13 which are in this position indexed to the frame 28 and which rotate around their fixed axes 24 and 20.
  • the drive of the rollers 30 and 31 is independent of the main toothed wheel 23, the latter can remain immobile, and the pulleys 12 and 13 can remain immobile without drawback insofar as the the deployed packaging 3 does not touch them at the risk of being blocked when it passes in front of it otherwise it will be necessary to couple the operation with a rotation of the main toothed wheel 23 as before.
  • the deployed packaging flow 3 stops when the part 18 of the belt 1 located between the pulleys 12 and 13 is completely masked.
  • a device 37 comprising an indexing system for the hamburger 4 relative to the axis 20 of the driving pulley 13 applies to the upper part of the hamburger 4 to facilitate its rotational training; in the present case it may, for example, include several points 38 (Fig.l) which are planted in the bread of the hamburger 4; its area of application on the hamburger 4 is located in front of the pulley 13 so that the end 39 (Fig. 4) of the package by folding cannot cover it when it is in the indexing position.
  • the driving pulley 13 which was indexed to the chassis 28 is indexed to the main toothed wheel 23 for example by locking in rotation of the satellite toothed wheel 26 (Fig.l).
  • the same electrical order and the same movement can be used to make the two operations of indexing the hamburger 4, the driving pulley 13 and the main toothed wheel .23.
  • the main toothed wheel 23 begins to rotate, driving the driving wheel 13 which does not turn, the hamburger, at the same time as the deployed packaging 3, is fed by the roller 30 at the tangential speed of the main toothed wheel 23.
  • the driving pulley 13 moves away from the driven pulley 12 pulling the end 39 of the deployed package 3; the driven pulley 12 rotates around its axis 24 kept fixed by indexing on the chassis 28 (Fig.l) under the action of the main toothed wheel 23 while the belt 1 (Fig.5), which it lets pass, press the deployed packaging 3 in zone 18 while keeping it pressed against the hamburger 4.
  • the deployed packaging 3 the hamburger 4 and the belt 1 have substantially the same tangential speed, there is no sliding sensitive from one to the other.
  • the third pulley 14 folds down to maintain the tension of the belt 1 by tensioning the spring 22.
  • the deployed packaging 3 folds over the top 6 and the bottom of the hamburger; by folding back under the deployed packaging 3 (Fig.2) traps the plate 7; while moving the free end 39 of the deployed packaging 3 is guided towards a slot 40 (Fig.l), made in the tray 7, which allows it to slide between the hamburger 4 (Fig.2) and the tray 7, on which the deployed packaging 3 slides, driven by the hamburger 4 which slides on the tray 7, also, driven by the indexing device 37.
  • the driving pulley 13 (FIG. 2) has traversed an angle of the order of 120 degrees
  • the driven pulley 12 deindexes from the chassis 28 to index on the main toothed wheel 23 by means, for example of the locking in rotation of the satellite toothed wheel 25.
  • the driving pulleys 13 and driven 12 move without turning on themselves until clearing the area 41 (Fig. 6) of exit from the packaged hamburger 42 (Fig. 3); during this phase, they pull behind them the deployed packaging 3 which continues to be delivered by the rollers 31 and 30.
  • this zone 41 (Fig. 6) is released the two pulleys 12 and 13 (Fig. 3) simultaneously deindex the main gear 23 for indexing on the frame 28; simultaneously the device 37 (Fig.l) for driving the hamburger in rotation is retracted; the main toothed wheel 23 (FIG. 6) continues to rotate which allows the zone 18 of the belt 1 to continue the entrainment of the deployed packaging 3 and of the hamburger 4 which is wedged between the belt 1 of a part and the part of the package 43 which has just been deployed.
  • the free end 39 moves away from the driving pulley 13 until it comes into the zone 36 for delivering the deployed packaging where it is covered by the packaging which has just been deployed.
  • the driven wheel 12 can be de-indexed from the chassis 28, leave it free or index it to the main toothed wheel 23; the driven pulley 12 then begins to approach the driving wheel 13 in order to avoid that there is too great a length of belt 18 between the two pulleys 12 and 13 when the evacuation of the packaged hamburger 42 goes start in direction 44.
  • the main gear 23 continues to rotate until the roller 31 rotating at low speed arrives at an area without wrinkles; the packaging is separated from the following packaging and discharged by escaping from the roller 30 rotating at high speed; the rollers 30 and 31 are stopped while the main gear 23 continues to rotate until the entire package is passed through the slot 40 (Fig.3) to release the lower part of the plate 7; if the rollers 30 and 31 are driven by the main gear 23, they are disengaged relative to the latter.
  • the driven pulley 12 comes in the vicinity of the driving pulley 13 and is indexed on the chassis until the main gear 23 stops; it is also possible to arrange for the end of travel of the driven pulley 12 in the vicinity of the driving pulley 13 to coincide with the stopping of the main toothed wheel 23.
  • the plate 7 (Fig. 3) supporting the packaged hamburger 42 is discharged in the direction 44 then the pulleys entraining 13 and driven 12 are indexed on the main toothed wheel 23 which then begins to turn upside down to bring back the pulleys 12 and 13 in their initial position where the driven pulleys 12 (Fig.l) and driving 13 are indexed on the frame 28.
  • the entry zone 45 (Fig.4) of the tray loaded with a hamburger 4 to packing is then released.
  • the rollers 30 and 31 rotate and deliver a new length of deployed packaging
  • the indexings can be simple rods 47 penetrating, under the action of an electromagnet, for example in slots made in the main toothed wheel 23 or in the corresponding satel ⁇ lite toothed wheel 26. Maintaining an indexing in place can be achieved by a fixed cam whose profile triggers during rotation, for example the end of indexing relative to the main gear 23 and indexing relative to the chassis 28 by a simple spring return movement. You can choose a strap

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

The wrapping (35) is first spread by two cylinders (30) and (31) rotating at different speeds; then the wrapping is applied to the body to be packaged (4) by means of a belt (1) which causes the body to rotate on a fixed plate (7) provided with a slot (40) preceded by a ramp (9) which enables the portion of the spread wrapping (3) initially situated under the plates (7) to pass between said plate and the body (4) to be packaged.

Description

Dispositif de pose d'un emballage réalisé à partir d'un film jnce plissé sur un corps convexe. Device for fitting a packaging made from a pleated film on a convex body.
L'invention concerne un dispositif de pose en automa¬ tique sur des objets convexes, sensiblement de révolution, d'emballages réalisés à partir de films minces plissés dont les plis sont fixés sur les bords; ce dispositif peut notamment servir à l'emballage en automatique des hamburgers; dans ce qui suit, on prend comme exemple le cas de l'emballage d'un hamburger, mais cette technique peut aussi bien s'appliquer à des produits comme les pizza, les assiettes ou tout autre objet répondant aux caractéris- tiques d'un objet convexe sensiblement de révolution.The invention relates to a device for automatically laying on convex objects, substantially of revolution, of packaging produced from pleated thin films whose folds are fixed on the edges; this device can in particular be used for automatic packaging of hamburgers; in what follows, we take as an example the case of the packaging of a hamburger, but this technique can equally well be applied to products such as pizza, plates or any other object meeting the characteristics of a convex object substantially of revolution.
Le brevet français publié sous le numéro FR 2595666- Bl décrit un emballage, constitué d'un film mince, formé de plis couchés fixés sur les bords; lorsqu'on déploie cet emballage autour du hamburger, la partie centrale se déploie tandis que les bords, dont les plis sont fixés entre eux, se rabattent sur les faces inférieures et supé¬ rieures du hamburger pour les recouvrir partiellement; seul subsiste de part et d'autre un rond central non recou¬ vert. Jusqu'à ce jour, les emballages ont été posés manuel- lement; cette opération nécessite un tour de main qu'il faut apprendre à chaque fois à un nouvel employé; et quand on sait le rythme auquel ils se succèdent dans la restaura¬ tion rapide, on conçoit que cela pose un problème. Etant donné l'originalité de cet emballage, il n'existe pas de machine permettant sa pose en automatique laquelle est à créer de toutes pièces.The French patent published under the number FR 2595666-B1 describes a package, consisting of a thin film, formed of coated pleats fixed on the edges; when this packaging is deployed around the hamburger, the central part is deployed while the edges, the folds of which are fixed between them, fold over on the lower and upper faces of the hamburger to partially cover them; only a non-covered central circle remains on both sides. To date, the packaging has been placed manually; this operation requires a knack that must be taught each time to a new employee; and when we know the rate at which they succeed each other in fast food, we understand that this poses a problem. Given the originality of this packaging, there is no machine for its automatic installation which is to be created from scratch.
Pour alimenter cette machine automatique, on utilise des emballages de dimension convenable suivant les spécifi¬ cations du brevet cité, les emballages étant de préférence reliés les uns aux autres par des zones sans plis comportant une prédécoupe; la prédécoupe permet d'assurer une alimenta¬ tion en continu de la machine et de séparer les emballages seulement au moment de leur mise en place sur les hamburgers.To feed this automatic machine, packaging of suitable size is used according to the specifications of the cited patent, the packaging preferably being connected to one another by zones without folds comprising a precut; the precut makes it possible to ensure a continuous feeding of the machine and to separate the packages only when they are placed on the burgers.
Les emballages forment ainsi une bande continue qui peut être enroulée sur elle-même ou bien rangée à plat par empilement de longueurs successives d'un nombre entier d'emballages formant des "Z"; cette dernière configu¬ ration permet de livrer les emballages dans des caisses parallèlépipédiques classiques, on ne décrira pas le dispo¬ sitif d'alimentation de.la bande dans la machine qui utili¬ se des méthodes connues. Les hamburgers, de leurs côté, sont entrés dans la machine posés sur des plateaux, sur lesquels le centrage du hamburger est repéré par exemple par un cercle tracé sur le plateau; ces plateaux entrent un à un dans le dispo¬ sitif de pose de l'emballage d'un côté et ressortent généra¬ le ent de l'autre côté pour y être déchargés. Afin de gagner du temps de main d'oeuvre, on peut créer une file d'attente de plateaux; le cuisinier, ayant préparé une série de hamburgers, charge un certain nombre de plateaux avec des hamburgers, puis va de 1'autre côté récupérer les hamburgers emballés, pour les poser sur les banques chauffantes, tandis que l'opération d'emballage se continue en temps masqué; puis -il revient à l'entrée du dispositif de pose des emballages, pour recharger des plateaux; il reste seulement au cuisinier à charger les hamburgers sur les plateaux puis à reprendre•les hamburgers emballés dans un réceptacle pour les mettre sur les banques chauf¬ fantes; ce dispositif d'alimentation qui utilise des techni¬ ques connues ne sera pas décrit dans le cadre de la présente invention. La figure 1 représente une vue perspective du disposi¬ tif de pose de l'emballage de hamburger, ce dernier étant enlevé pour montrer le plateau support du hamburger, la roue dentée principale étant éclatée pour montrer le dispo¬ sitif d'indexation du hamburger, ainsi que la courroie pour montrer la rampe de guidage du papier.The packages thus form a continuous strip which can be wound on itself or stored flat by stacking successive lengths of an entire number of packages forming "Z"; this latter configuration makes it possible to deliver the packaging in conventional parallelepipedic cases, the supply device will not be described . the strip in the machine which uses known methods. The hamburgers, for their part, entered the machine placed on trays, on which the centering of the hamburger is marked for example by a circle drawn on the tray; these trays enter one by one into the arrangement for placing the packaging on one side and come out generously on the other side to be discharged there. In order to save labor time, you can create a queue of trays; the cook, having prepared a series of burgers, loads a number of trays with burgers, then goes to the other side to collect the packaged burgers, to place them on the heating banks, while the packaging operation continues in masked time; then -it returns to the entry of the packaging installation device, to reload trays; it only remains for the cook to load the hamburgers on the trays and then return • the hamburgers packed in a receptacle to put them on the heating banks; this supply device which uses known techniques will not be described in the context of the present invention. FIG. 1 represents a perspective view of the arrangement for placing the hamburger package, the latter being removed to show the hamburger support plate, the main gear being exploded to show the indexing device for the hamburger, and the strap to show the paper guide ramp.
La figure 2 représente une vue perspective du disposi¬ tif de pose de l'emballage de hamburger en cours de fonc¬ tionnement, la roue dentée principale, la courroie, l'emballage, le hamburger, ont été éclatés pour montrer - la position respective des divers éléments, ainsi que la zone dans laquelle l'emballage s'intercale entre le plateau et le hamburger. La figure 3 représente une vue perspective de la pose de l'emballage terminée, avant évacuation du hamburger emballé de la machine.FIG. 2 represents a perspective view of the arrangement for placing the hamburger packaging during operation, the main toothed wheel, the belt, the packaging, the hamburger, has been exploded to show - the respective position of the various elements, as well as the zone in which the packaging is inserted between the tray and the hamburger. Figure 3 shows a perspective view of the installation of the finished packaging, before removal of the packaged hamburger from the machine.
La figure 4 représente une vue de dessus du disposi¬ tif, roue dentée principale enlevée, au moment de l'arrivée du plateau chargé d'un hamburger à emballer; le dispositif d'entraînement des rouleaux n'est représenté qu'à titre indicatif pour matérialiser la différence de vitesse des deux rouleaux.Figure 4 shows a top view of the disposi¬ tif, main gear removed, upon arrival of the tray loaded with a hamburger to pack; the roller drive device is only shown as an indication of the difference in speed between the two rollers.
La figure 5 représente une vue de dessus du disposi- tif, roue dentée principale enlevée, au stade montré par la figure 2.FIG. 5 represents a top view of the device, main gear removed, at the stage shown in FIG. 2.
La figure 6 représente une vue du dispositif, roue dentée principale enlevée, en phase finale d'assemblage montré par la figure 3; le dispositif d'indexation du hamburger n'est pas représenté.Figure 6 shows a view of the device, main gear removed, in the final assembly phase shown in Figure 3; the hamburger indexing device is not shown.
Le dispositif selon l'invention comporte une courroie 1 (Fig.2) permettant d'appliquer la partie centrale 2 de l'emballage déployé 3 sur le hamburger 4; la partie périphérique 5 du hamburger et la courroie 1 se déplacent, à la même vitesse linéaire, en pinçant entre eux la partie centrale 2 dé l'emballage déployé 3 qui est alimentée aussi à la même vitesse linéaire; l'emballage se rabat dessus 6 et dessous le hamburger tandis que le hamburger est entraîné en rotation sur un plateau 7 (Fig.l) qui est fixe pendant l'opération de pose de l'emballage et sur lequel il glisse. L'emballage se rabat d'abord sous le plateau 7 dont le bord 8 dans cette zone a la forme sensiblement circulaire du hamburger, mais qui est fixe; une rampe 9 (Fig.2) guide la partie 10 de l'emballage déployé 3 rabattu qui emprisonne le plateau 7 vers une fente 11 (Fig.l) lui permettant de se glisser entre le hamburger 4 (Fig.2) et le plateau 7. La courroie 1 est manoeuvrée par trois poulies 12, 13 et 14 (Fig.l) à axes • parallèles, mobiles les unes par rapport aux autres, permet¬ tant de maintenir une tension suffisante de la courroie 1 au cours du mouvement de pose de l'emballage pour éviter les déraillements; deux des poulies 12 et 13, sont de même diamètre et ont leurs axes 24 et 20 qui peuvent décri¬ re un arc circulaire, dont l'axe 15 est sensiblement confon¬ du avec le centre de hamburger, lorsque ce dernier est en place pour la pose de l'emballage, et parallèle à celui des poulies 12,13,14; les poulies 12 et 13 sont, par exemple, reliées à l'axe 15 par les bras 16 et 17 qui pivotent autour de ce dernier; les poulies 12. et 13 appliquent une partie 18 (Fig.2) de la courroie 1 sur l'emballage déployé 3 qui est lui-même en contact avec le hamburger 4; la troisième poulie 14 assure la tension de la courroie 1; son axe 19 est, par exemple, relié par un bras 21 à l'axe 20 d'une des deux autres poulies 13 ou 14 et se déplace en décrivant un arc de cercle autour de celle- ci; un ressort 22 (Fig.4) de rappel permet d'assurer une tension permanente; le mouvement des deux poulies 12 et 1 (Fig.l) qui sont en contact avec le hamburger 4 est assuré par une roue dentée principale 23 centrée sur le même axe 15 que celui autour duquel tournent les axes 24 et 20 des poulies 12 et 13 et d'un diamètre sensible¬ ment égal à celui du hamburger 4 (Fig.2); les deux premiè- res poulies 12 et 13 (Fig.l) comportent chacune au bout de leur axe 24 et 20 une roue dentée satellite 25 et 26 , sensiblement du diamètre des poulies 12 et 13, qui engrène sur la roue dentée principale 23. Au cours de la mise en place de l'emballage déployé 3 (Fig.2) sur le hamburger, la roue dentée principale 23 tourne à la vitesse d'enroulement de l'emballage déployé 3 sur le hamburger.The device according to the invention comprises a belt 1 (FIG. 2) making it possible to apply the central part 2 of the deployed packaging 3 to the hamburger 4; the peripheral part 5 of the hamburger and the belt 1 move, at the same linear speed, pinching between them the central part 2 of the deployed packaging 3 which is also fed at the same linear speed; the packaging folds over 6 and below the hamburger while the hamburger is rotated on a plate 7 (Fig.l) which is fixed during the operation of laying the packaging and on which it slides. The packaging first folds under the tray 7 whose edge 8 in this area has the substantially circular shape of the hamburger, but which is fixed; a ramp 9 (Fig. 2) guides part 10 of the folded out package 3 which traps the tray 7 towards a slot 11 (Fig.l) allowing it to slide between the hamburger 4 (Fig. 2) and the tray 7. The belt 1 is maneuvered by three pulleys 12, 13 and 14 (Fig.l) with axes • parallel, movable with respect to each other, so as to maintain sufficient tension of the belt 1 during the movement of fitting the packaging to avoid derailments; two of the pulleys 12 and 13 are of the same diameter and have their axes 24 and 20 which can describe a circular arc, the axis of which is substantially the same as the center of the hamburger, when the latter is in place for fitting the packaging, and parallel to that of the pulleys 12,13,14; the pulleys 12 and 13 are, for example, connected to the axis 15 by the arms 16 and 17 which pivot around the latter; the pulleys 12 . and 13 apply a part 18 (FIG. 2) of the belt 1 to the deployed packaging 3 which is itself in contact with the hamburger 4; the third pulley 14 ensures the tension of the belt 1; its axis 19 is, for example, connected by an arm 21 to the axis 20 of one of the other two pulleys 13 or 14 and moves in an arc around it; a return spring 22 (Fig. 4) ensures permanent tension; the movement of the two pulleys 12 and 1 (Fig.l) which are in contact with the hamburger 4 is ensured by a main toothed wheel 23 centered on the same axis 15 as that around which the axes 24 and 20 of the pulleys 12 and 13 rotate. and of a diameter substantially equal to that of hamburger 4 (Fig. 2); the first two pulleys 12 and 13 (Fig.l) each have at the end of their axis 24 and 20 a satellite gear 25 and 26, substantially of the diameter of the pulleys 12 and 13, which meshes on the main gear 23. During the positioning of the deployed packaging 3 (Fig. 2) on the hamburger, the main gear 23 rotates at the winding speed of the deployed packaging 3 on the hamburger.
Une des poulies 13 est entraînante et possède un dispositif 27 permettant un indexage commandé par rapport à la roue dentée principale 23 ou par rapport à un point fixe du châssis; dans ces conditions la poulie 13 (Fig.2) peut se déplacer, sans tourner sur elle-même, en étant entraînée par la roue principale 23, ou bien tourner sur elle-même (Fig.3), autour de son axe 20 maintenu fixe au châssis 28 par le dispositif d'indexage 27, entraînée en rotation par la roue dentée principale 23. L'autre poulie 12 est entraînée et dispose du même système comman- dé d'indexation 29. La troisième poulie 14 est libre et se positionne de manière à rattraper toute variation de tension au cours des mouvements.One of the pulleys 13 is driving and has a device 27 allowing controlled indexing with respect to the main toothed wheel 23 or with respect to a fixed point of the chassis; under these conditions the pulley 13 (Fig. 2) can move, without turning on itself, being driven by the main wheel 23, or else turn on itself (Fig. 3), around its axis 20 kept fixed to the chassis 28 by the indexing device 27, driven in rotation by the main toothed wheel 23. The other pulley 12 is driven and has the same control system - indexing die 29. The third pulley 14 is free and is positioned so as to make up for any variation in tension during movements.
En ce qui concerne l'alimentation de l'emballage déployé 3 (Fig.2), il est constitué de deux rouleaux 30 et 31 dont les axes 32 et 33 sont parallèles à ceux des poulies 12,13 et 14 et qui pressent l'emballage contre une paroi 34 sur laquelle glisse l'emballage. Le premier rouleau 30 (Fig.2) tourne à une vitesse tangentielle sen¬ siblement égale à celle de la courroie 1; en amont de ce dernier un autre rouleau 31 tourne à une vitesse plus faible. Si le pas de l'emballage déployé 3 est caracté¬ risé par la somme des largeurs A et B de deux bandes successives constituant un pli, le rapport de vitesse tangentielle entre les deux rouleaux 31 et 30 est égal à (A-B)/(A+B); si les rouleaux 30 et 31 sont de même diamètre le rapport des vitesses tangentielles est le même que le rapport des vitesses de rotation. L'écarte- ment des rouleaux 30 et 31 est fait pour que l'embal¬ lage non déployé 35 ait l'espace suffisant pour se déployer entre le moment où il est passé sous le rou¬ leau 31 à faible vitesse et celui où il passe sur le rouleau 30 à grande vitesse. L'entraînement des rou¬ leaux 30 et 31 peut éventuellement être fait par la grande roue dentée 23 avec un dispositif de débrayage permettant d'être entraîné ou non. Les axes 32 et 33 de ces rouleaux peuvent se déplacer légèrement par rapport à la plaque d'appui 34 pour faciliter l'intro¬ duction des emballages 35 et tenir compte de leur varia¬ tion d'épaisseur. Une des caractéristiques de ce dis- positif de déploiement des emballages consiste en ce que lorsque le rouleau 31 tournant à faible vitesse commence à rouler sur une zone sans plis, il débite une longueur d'emballage 35 insuffisante à celle demandée par le rou¬ leau 30 tournant à vitesse rapide; le film souple cons¬ tituant l'emballage se tend et dans ces conditions la prédécoupe se déchire séparant l'emballage 35 en cours de déploiement de l'emballage suivant.As regards the supply of the deployed packaging 3 (Fig. 2), it consists of two rollers 30 and 31 whose axes 32 and 33 are parallel to those of the pulleys 12, 13 and 14 and which press the packaging against a wall 34 on which the packaging slides. The first roller 30 (Fig.2) rotates at a tangential speed which is substantially equal to that of the belt 1; upstream of the latter, another roller 31 rotates at a lower speed. If the pitch of the deployed packaging 3 is characterized by the sum of the widths A and B of two successive bands constituting a fold, the tangential speed ratio between the two rollers 31 and 30 is equal to (AB) / (A + B); if the rollers 30 and 31 are of the same diameter, the ratio of the tangential speeds is the same as the ratio of the rotational speeds. The spacing of the rollers 30 and 31 is made so that the undeployed packaging 35 has sufficient space to deploy between the moment when it has passed under the roller 31 at low speed and that when it passes on roller 30 at high speed. The driving of the rollers 30 and 31 can optionally be done by the large toothed wheel 23 with a declutching device making it possible to be driven or not. The axes 32 and 33 of these rollers can move slightly relative to the support plate 34 to facilitate the introduction of the packaging 35 and take account of their thickness variation. One of the characteristics of this packaging deployment device is that when the roller 31 rotating at low speed begins to roll over an area without wrinkles, it delivers a length packaging 35 insufficient to that requested by the roller 30 rotating at high speed; the flexible film constituting the packaging stretches and under these conditions the precut tears separating the packaging 35 during deployment of the following packaging.
La mise en place de l'emballage déployé 3 (fig.4) sur le hamburger 4 se réalise de la manière suivante : Dans un premier temps, les poulies entraînante 13 et entraî¬ née 14 sont côte à côte au voisinage de la zone 36 de délivrance de l'emballage déployé 3. Les rouleaux 31 et 30 commencent à déployer une longueur d'emballage suffi¬ sante pour s'interposer entre la courroie 1 et le hambur¬ ger 4 qui est encore en dehors de l'aire d'emballage. Pendant cette phase, si c'est la roue dentée principale 23 qui est entraînante des rouleaux 30 et 31, elle peut entraîner en même temps en rotation les deux poulies 12 et 13 qui sont dans cette position indexées au châssis 28 et qui tournent autour de leurs axes fixes 24 et 20. Si l'entraînement des rouleaux 30 et 31 est indépendant de la roue dentée principale 23 cette dernière peut res¬ ter immobile, et les poulies 12 et 13 peuvent rester im¬ mobiles sans inconvénient dans la mesure où l'emballage déployé 3 ne les touche pas au risque d'être bloqué lorsqu'il passe devant sinon il faudra coupler l'opéra- tion avec une rotation de la roue dentée principale 23 comme précédemment. Le débit d'emballage déployé 3 s'arrête lorsque la partie 18 de la courroie 1 située entre les poulies 12 et 13 est complètement masquée.The deployment of the deployed packaging 3 (fig. 4) on the hamburger 4 is carried out as follows: Firstly, the driving pulleys 13 and driven 14 are side by side in the vicinity of zone 36 for delivering the deployed packaging 3. The rollers 31 and 30 begin to deploy a sufficient packaging length to be interposed between the belt 1 and the hambur¬ ger 4 which is still outside the area of packaging. During this phase, if it is the main toothed wheel 23 which is driving the rollers 30 and 31, it can simultaneously rotate the two pulleys 12 and 13 which are in this position indexed to the frame 28 and which rotate around their fixed axes 24 and 20. If the drive of the rollers 30 and 31 is independent of the main toothed wheel 23, the latter can remain immobile, and the pulleys 12 and 13 can remain immobile without drawback insofar as the the deployed packaging 3 does not touch them at the risk of being blocked when it passes in front of it otherwise it will be necessary to couple the operation with a rotation of the main toothed wheel 23 as before. The deployed packaging flow 3 stops when the part 18 of the belt 1 located between the pulleys 12 and 13 is completely masked.
Le plateau 7 supportant le hamburger 4 se présente de manière que le hamburger 4 vienne s'appliquer sur l'emballage déployé 3 pour venir le coincer contre la courroie 1 dans la zone 18. Un dispositif 37 comportant un système d'indexation du hamburger 4 par rapport à 1'axe 20 de la poulie entraînante 13 s'applique sur la partie supérieure du hamburger 4 pour faciliter son entraînement en rotation; dans le cas présent il peut, par exemple, comporter plusieurs pointes 38 (Fig.l) qui viennent se planter dans le pain du hamburger 4; sa zone d'application sur le hamburger 4 est située en avant de la poulie 13 de manière que l'extrémité 39 (Fig.4) de l'emballage en se rabattant ne puisse le recouvrir lorsqu'il est en position d'indexage. Simultanément à cette opération, la poulie entraînante 13 qui était indexée au châssis 28 est indexée à la roue dentée principale 23 par exemple par bloquage en rotation de la roue dentée satellite 26 (Fig.l). Le même ordre électrique et le même mouvement peuvent servir à faire les deux opéra- tions d'indexation du hamburger 4, de la poulie entraî¬ nante 13 et de la roue dentée principale .23. La roue dentée principale 23 commence à tourner entraînant la roue entraî¬ nante 13 qui ne tourne pas, le hamburger, en même temps que l'emballage déployé 3, est alimenté par le rouleau 30 à la vitesse tangentielle de la roue dentée principale 23.The plate 7 supporting the hamburger 4 is presented so that the hamburger 4 comes to apply on the deployed packaging 3 to come and wedge it against the belt 1 in the zone 18. A device 37 comprising an indexing system for the hamburger 4 relative to the axis 20 of the driving pulley 13 applies to the upper part of the hamburger 4 to facilitate its rotational training; in the present case it may, for example, include several points 38 (Fig.l) which are planted in the bread of the hamburger 4; its area of application on the hamburger 4 is located in front of the pulley 13 so that the end 39 (Fig. 4) of the package by folding cannot cover it when it is in the indexing position. Simultaneously with this operation, the driving pulley 13 which was indexed to the chassis 28 is indexed to the main toothed wheel 23 for example by locking in rotation of the satellite toothed wheel 26 (Fig.l). The same electrical order and the same movement can be used to make the two operations of indexing the hamburger 4, the driving pulley 13 and the main toothed wheel .23. The main toothed wheel 23 begins to rotate, driving the driving wheel 13 which does not turn, the hamburger, at the same time as the deployed packaging 3, is fed by the roller 30 at the tangential speed of the main toothed wheel 23.
La poulie entraînante 13 (Fig.5) s'éloigne de la poulie entraînée 12 tirant l'extrémité 39 de l'emballage déployé 3; la poulie entraînée 12 tourne autour de son axe 24 maintenu fixe par indexation sur le châssis 28 (Fig.l) sous l'action de la roue dentée principale 23 tandis que la courroie 1 (Fig.5), qu'elle laisse passer, appuie sur l'emballage déployé 3 dans la zone 18 en le maintenant plaqué sur le hamburger 4. Comme l'emballage déployé 3 le hamburger 4 et la courroie 1 ont sensible¬ ment la même vitesse tangentielle, il n'y a pas de glissement sensible de l'un par rapport à l'autre. La troisième poulie 14 se rabat pour maintenir la tension de la courroie 1 en tendant le ressort 22. L'emballage déployé 3 se rabat sur le dessus 6 et le dessous du hamburger; en se rabattant dessous l'emballage déployé 3 (Fig.2) emprisonne le plateau 7; tout en se déplaçant l'extrémité libre 39 de l'emballage déployé 3 est guidée vers une fente 40 (Fig.l), pratiquée dans le plateau 7, qui lui permet de se glisser entre le hamburger 4 (Fig.2) et le plateau 7, sur lequel l'emballage déployé 3 glisse, entraîné par le hamburger 4 qui glisse sur le plateau 7, lui aussi, entraîné par le dispositif d'indexation 37. Lorsque la poulie entraînante 13 (Fig.2) a parcouru un angle de l'ordre de 120 degrés la poulie entraînée 12 se désindexe du châssis 28 pour s'indexer sur la roue dentée principale 23 par l'intermédiaire, par exemple du blocage en rotation de la roue dentée satellite 25. Les poulies entraînante 13 et entraînée 12 se déplacent sans tourner sur elles-mêmes jusqu'à dégager la zone 41 (Fig.6) de sortie du hamburger emballé 42 (Fig.3); pendant cette phases, elles tirent derrière elles l'emballage déployé 3 qui continue à être débité par les rouleaux 31 et 30. Quand cette zone 41 (Fig.6) est dégagée les deux poulies 12 et 13 (Fig.3) se désindexent simultanément de la roue dentée principale 23 pour s'indexer sur le châssis 28; simultanément le dispositif 37 (Fig.l) d'entraî- nement en rotation du hamburger est escamoté; la roue dentée principale 23 (Fig.6) continue de tourner ce qui permet à la zone 18 de la courroie 1 de continuer l'entraî¬ nement de l'emballage déployé 3 et du hamburger 4 qui est coincé entre la courroie 1 d'une part et la partie de l'emballage 43 qui vient d'être déployée. L'extrémité libre 39 s'éloigne de la poulie entraînante 13 jusqu'à venir dans la zone 36 de délivrance de l'emballage déployé où elle est recouverte par l'emballage qui vient d'être déployé. A ce moment on peut désindexer la roue entraînée 12 du châssis 28 la laisser libre ou l'indexer à la roue dentée principale 23; la poulie entraînée 12 commence alors à se rapprocher de la roue entraînante 13 afin d'évi¬ ter qu'il y ait une trop grande longueur de courroie 18 entre les deux poulies 12 et 13 au moment où l'évacuation du hamburger emballé 42 va commencer dans la direction 44.The driving pulley 13 (Fig.5) moves away from the driven pulley 12 pulling the end 39 of the deployed package 3; the driven pulley 12 rotates around its axis 24 kept fixed by indexing on the chassis 28 (Fig.l) under the action of the main toothed wheel 23 while the belt 1 (Fig.5), which it lets pass, press the deployed packaging 3 in zone 18 while keeping it pressed against the hamburger 4. As the deployed packaging 3 the hamburger 4 and the belt 1 have substantially the same tangential speed, there is no sliding sensitive from one to the other. The third pulley 14 folds down to maintain the tension of the belt 1 by tensioning the spring 22. The deployed packaging 3 folds over the top 6 and the bottom of the hamburger; by folding back under the deployed packaging 3 (Fig.2) traps the plate 7; while moving the free end 39 of the deployed packaging 3 is guided towards a slot 40 (Fig.l), made in the tray 7, which allows it to slide between the hamburger 4 (Fig.2) and the tray 7, on which the deployed packaging 3 slides, driven by the hamburger 4 which slides on the tray 7, also, driven by the indexing device 37. When the driving pulley 13 (FIG. 2) has traversed an angle of the order of 120 degrees, the driven pulley 12 deindexes from the chassis 28 to index on the main toothed wheel 23 by means, for example of the locking in rotation of the satellite toothed wheel 25. The driving pulleys 13 and driven 12 move without turning on themselves until clearing the area 41 (Fig. 6) of exit from the packaged hamburger 42 (Fig. 3); during this phase, they pull behind them the deployed packaging 3 which continues to be delivered by the rollers 31 and 30. When this zone 41 (Fig. 6) is released the two pulleys 12 and 13 (Fig. 3) simultaneously deindex the main gear 23 for indexing on the frame 28; simultaneously the device 37 (Fig.l) for driving the hamburger in rotation is retracted; the main toothed wheel 23 (FIG. 6) continues to rotate which allows the zone 18 of the belt 1 to continue the entrainment of the deployed packaging 3 and of the hamburger 4 which is wedged between the belt 1 of a part and the part of the package 43 which has just been deployed. The free end 39 moves away from the driving pulley 13 until it comes into the zone 36 for delivering the deployed packaging where it is covered by the packaging which has just been deployed. At this moment, the driven wheel 12 can be de-indexed from the chassis 28, leave it free or index it to the main toothed wheel 23; the driven pulley 12 then begins to approach the driving wheel 13 in order to avoid that there is too great a length of belt 18 between the two pulleys 12 and 13 when the evacuation of the packaged hamburger 42 goes start in direction 44.
La roue dentée principale 23 continue de tourner jusqu'à ce que le rouleau 31 tournant à faible vitesse arrive sur une zone sans plis; l'emballage est séparé de l'emballage suivant et évacué en échappant au rouleau 30 tournant à grande vitesse; les rouleaux 30 et 31 sont arrêtés tandis que la roue dentée principale 23 continue de tourner jusqu'à ce que la totalité de l'emballage soit passé à travers la fente 40 (Fig.3) afin de libérer la partie inférieure du plateau 7; si les rouleaux 30 et 31 sont entraînés par la roue dentée principale 23, ils sont débrayés par rapport à cette dernière. La poulie entraînée 12 vient au voisinage de la poulie entraînante 13 et s'indexe sur le châssis jusqu'à ce que la roue dentée principale 23 s'arrête; on peut aussi s'arranger pour que la fin de course de la poulie entraînée 12 au voisinage de la poulie entraînante 13 coïncide avec l'arrêt de la roue dentée principale 23.The main gear 23 continues to rotate until the roller 31 rotating at low speed arrives at an area without wrinkles; the packaging is separated from the following packaging and discharged by escaping from the roller 30 rotating at high speed; the rollers 30 and 31 are stopped while the main gear 23 continues to rotate until the entire package is passed through the slot 40 (Fig.3) to release the lower part of the plate 7; if the rollers 30 and 31 are driven by the main gear 23, they are disengaged relative to the latter. The driven pulley 12 comes in the vicinity of the driving pulley 13 and is indexed on the chassis until the main gear 23 stops; it is also possible to arrange for the end of travel of the driven pulley 12 in the vicinity of the driving pulley 13 to coincide with the stopping of the main toothed wheel 23.
Le plateau 7 (Fig.3) supportant le hamburger emballé 42 est évacué dans la direction 44 puis les poulies entraî¬ nante 13 et entraînée 12 s'indexent sur la roue dentée principale 23 qui alors se met à tourner à l'envers pour ramener les poulies 12 et 13 à leur position initiale où les poulies entraînée 12 (Fig.l) et entraînante 13 s'indexent sur le châssis 28.La zone d'entrée 45 (Fig.4) du plateau chargé d'un hamburger 4 à emballer est alors dégagée. Les rouleaux 30 et 31 se mettent en rotation e délivrant une nouvelle longueur d'emballage déployéThe plate 7 (Fig. 3) supporting the packaged hamburger 42 is discharged in the direction 44 then the pulleys entraining 13 and driven 12 are indexed on the main toothed wheel 23 which then begins to turn upside down to bring back the pulleys 12 and 13 in their initial position where the driven pulleys 12 (Fig.l) and driving 13 are indexed on the frame 28. The entry zone 45 (Fig.4) of the tray loaded with a hamburger 4 to packing is then released. The rollers 30 and 31 rotate and deliver a new length of deployed packaging
3 venant recouvrir la partie 18 de la courroie 1 sur laquel¬ le le hamburger 4 va venir buter. On peut alors donner l'ordre au plateau 7 suivant d'avancer dans la direction 46. On peut remarquer que la totalité de la partie mécani¬ que d'entraînement en rotation et d'indexation est située au-dessus du plan des plateaux 7 supportant les hamburgers. A aucun moment le hamburger est en contact avec la courroie 1 ou les poulies 12 et 13; il n'y a pas de risque de salis- sure par de la sauce. Les indexations peuvent être de simples tiges 47 pénétrant, sous l'action d'un électro¬ aimant, par exemple dans des lumières pratiquées dans la roue dentée principale 23 ou dans la roue dentée satel¬ lite 26 correspondante. Le maintien en place d'une indexa- tion peut être réalisé par une came fixe dont le profil déclenche en cours de rotation, par exemple la fin de l'indexation par rapport à la roue dentée principale 23 et l'indexation par rapport au châssis 28 par un simple mouvement de rappel par ressort. On peut choisir une courroie3 coming to cover the part 18 of the belt 1 on which the hamburger 4 will abut. We can then give the order to the next plate 7 to advance in direction 46. It may be noted that the whole of the mechanical part that rotates and indexes is located above the plane of the plates 7 supporting hamburgers. At no time is the hamburger in contact with the belt 1 or the pulleys 12 and 13; there is no risk of soiling with sauce. The indexings can be simple rods 47 penetrating, under the action of an electromagnet, for example in slots made in the main toothed wheel 23 or in the corresponding satel¬ lite toothed wheel 26. Maintaining an indexing in place can be achieved by a fixed cam whose profile triggers during rotation, for example the end of indexing relative to the main gear 23 and indexing relative to the chassis 28 by a simple spring return movement. You can choose a strap
1 crantée pour appuyer l'emballage sur le hamburger; cela peut avoir l'avantage de mieux contrôler la pression exercée par cette dernière sur le produit à emballer. 1 notched to press the packaging on the hamburger; this can have the advantage of better controlling the pressure exerted by the latter on the product to be packaged.

Claims

RevendicationsClaims
1 - Dispositif de pose en automatique sur des objets convexes sensiblement de révolution d'emballages réalisés à partir de films minces formés de plis couchés fixés sur les bords, lesdits emballages étant reliés les uns aux autres par des zones sans plis comportant une prédécoupe et constituant une bande continue enroulée sur elle-même ou rangée à plat par empilement, caractérisé en ce que l'emballage préalablement déployé (3) est pincé entre l'objet à emballer et une courroie (1) qui entraîne l'ensem- ble en rotation sur un plateau fixe (7)- comportant une fente (40) précédée d'un guidage (9) qui permet à la partie inférieure de l'emballage, primitivement séparée de l'objet (4) par le plateau (7), de se glisser entre le plateau (7) et l'objet à emballer. 2 - Dispositif suivant la revendication 1, caractéri¬ sé en ce que l'emballage est déployé par passage successif d'abord sous un rouleau (31) tournant à faible vitesse et puis sous un rouleau (30), tournant à vitesse tangentiel¬ le plus rapide sensiblement égale à celle de la courroie (1), et s 'appuyant sur une plaque de glissement (34).1 - Device for automatically laying on convex objects substantially of revolution of packaging produced from thin films formed of coated pleats fixed on the edges, said packaging being connected to each other by zones without pleats comprising a precut and constituting a continuous strip wound on itself or stored flat by stacking, characterized in that the previously deployed packaging (3) is clamped between the object to be wrapped and a belt (1) which drives the assembly in rotation on a fixed plate (7) - comprising a slot (40) preceded by a guide (9) which allows the lower part of the packaging, originally separated from the object (4) by the plate (7), to slip between the plate (7) and the object to be packed. 2 - Device according to claim 1, characterized in that the packaging is deployed by successive passage first under a roller (31) rotating at low speed and then under a roller (30), rotating at tangential speed. faster substantially equal to that of the belt (1), and pressing on a sliding plate (34).
3 - Dispositif suivant la revendication 2, caractéri¬ sé en ce que le rapport de vitesse tangentielle du rouleau (31) par rapport au rouleau (30) est sensiblement égal à (A-B)/(A+B) "A" et "B" caractérisant la forme du pli. 4 - Dispositif suivant la revendication 3, caractéri¬ sé en ce que les emballages étant rattachés entre eux par une zone sans plis comportant une prédécoupe, la sépara¬ tion des emballages est obtenue par traction du rouleau (30) lorsque le rouleau (31) arrive sur la zone sans plis. 5 - Dispositif suivant l'une quelconque des revendi¬ cations précédentes, caractérisé en ce que la courroie (1) est appliquée sur l'emballage déployé (3) par deux poulies (12) et (13) et maintenue en tension par une poulie (14) reliée par un bras (21) à l'un des bras (16) ou (17) sur lequel il s'articule et auquel il est relié par un ressort de rappel (22). 6 - Dispositif suivant l'une quelconque des revendi¬ cations précédentes, caractérisé en ce que les axes (24) et (20) des poulies (12) et (13) sont articulés autour d'un axe (15) par des bras (16) et (17) et sont entraînés en rotation ou en translation par la roue dentée principale (23) à laquelle ils sont reliés par des roues dentées satellites (25) et (26).3 - Device according to claim 2, caractéri¬ se in that the tangential speed ratio of the roller (31) relative to the roller (30) is substantially equal to (AB) / (A + B) "A" and "B "characterizing the shape of the fold. 4 - Device according to claim 3, caractéri¬ se in that the packages being joined together by a crease-free zone comprising a precut, the separation of the packages is obtained by pulling the roller (30) when the roller (31) arrives at the crease-free area 5 - Device according to any one of the preceding claims, characterized in that the belt (1) is applied to the deployed packaging (3) by two pulleys (12) and (13) and kept in tension by a pulley (14) connected by an arm (21) to one of the arms (16) or (17) on which it is articulated and to which it is connected by a return spring (22). 6 - Device according to any one of the preceding claims, characterized in that the axes (24) and (20) of the pulleys (12) and (13) are articulated around an axis (15) by arms ( 16) and (17) and are driven in rotation or in translation by the main toothed wheel (23) to which they are connected by satellite toothed wheels (25) and (26).
7 - Dispositif suivant l'une quelconque des revendi¬ cations précédentes, caractérisé en ce que les poulies (12) et (13) peuvent être indexées par des dispositifs7 - Device according to any one of the preceding revendi¬ cations, characterized in that the pulleys (12) and (13) can be indexed by devices
(29) et (27) par rapport à la roue dentée principale (23) et ainsi bloquées en rotation ou indexées par rapport au châssis (28) et ainsi tourner autour de leurs axes (24) et (20) maintenus en position fixe. 8 - Dispositif suivant l'une quelconque des revendi¬ cations précédentes, caractérisé en ce que un dispositif d'indexation (37) par rapport à l'axe (20) aide à l'entraî¬ nement en rotation de l'objet à emballer par rapport au plateau fixe (7) . 9 - Dispositif suivant l'une quelconque des revendi¬ cations précédentes, caractérisé en ce que les poulies (12) et (13) sont d'abord côte à côte, au début de la pose de l'emballage, du côté de la sortie (41) du hamburger emballé (42), ensuite la poulie (13), indexée sur la roue dentée principale (23), commence par s'écarter de la poulie (12) en pivotant autour de l'axe (15), puis les deux poulies (12) et (13) indexées sur la roue dentée principale (23) pivotent à écartement constant autour de l'axe (15) jusqu'à atteindre la zone (45), d'entrée du plateau (7) avec le hamburger (4) à emballer, au niveau de laquelle elles s'indexent sur le châssis (28) tandis que l'indexage (37) de l'objet est escamoté et que la roue dentée principale (23) continue son mouvement de rotation autour de l'axe (15) entraînant la courroie (1) et l'extrémité (39) de l'emballage déployé (3) jusqu'à ce que, repassant au niveau de la zone (36), elle soit recouverte et que l'emballage totalement déployé soit entièrement passé sur le dessus du plateau (7) pour permettre le dégagement du hamburger emballé ( 42 ) .(29) and (27) relative to the main toothed wheel (23) and thus locked in rotation or indexed with respect to the chassis (28) and thus rotate around their axes (24) and (20) maintained in a fixed position. 8 - Device according to any one of the preceding revendi¬ cations, characterized in that an indexing device (37) relative to the axis (20) helps in the entrainment in rotation of the object to be packaged relative to the fixed plate (7). 9 - Device according to any one of the preceding revendi¬ cations, characterized in that the pulleys (12) and (13) are first side by side, at the start of fitting the packaging, on the outlet side (41) of the packaged hamburger (42), then the pulley (13), indexed on the main toothed wheel (23), starts by moving away from the pulley (12) by pivoting around the axis (15), then the two pulleys (12) and (13) indexed on the main toothed wheel (23) pivot at constant spacing around the axis (15) until reaching the area (45), of entry of the plate (7) with the hamburger (4) to be packaged, at which they are indexed on the chassis (28) while the indexing (37) of the object is retracted and the main toothed wheel (23) continues its rotational movement around the axis (15) driving the belt (1) and the end (39) of the deployed packaging (3) until, passing again at the level of the zone (36), it is covered and the packaging e fully deployed is completely passed over the top of the tray (7) to allow the release of the hamburger packaged (42).
10 - Dispositif suivant l'une quelconque des revendi¬ cations précédentes, caractérisé en ce que la roue dentée principale (23) assure les mouvements des rouleaux (30) et (31) qui par ailleurs disposent d'un système de débrayage qui met le dispositif de déploiement en attente après le dechirage de la prédécoupe et 1'échappement de 1'embal¬ lage en fin de pose du rouleau (30). 10 - Device according to any one of the preceding revendi¬ cations, characterized in that the main toothed wheel (23) ensures the movements of the rollers (30) and (31) which moreover have a declutching system which puts the deployment device pending after tearing of the precut and 1'embal¬ lage exhaust at the end of installation of the roller (30).
PCT/FR1992/000342 1991-04-17 1992-04-16 Device for laying a wrapping made from a thin pleated film on a convex body WO1992018387A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR91/04962 1991-04-17
FR9104962A FR2675464B1 (en) 1991-04-17 1991-04-17 DEVICE FOR DEPOSITING A PACKAGING MADE FROM A PLEATED THIN FILM ON A CONVEX BODY.

Publications (1)

Publication Number Publication Date
WO1992018387A1 true WO1992018387A1 (en) 1992-10-29

Family

ID=9412139

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1992/000342 WO1992018387A1 (en) 1991-04-17 1992-04-16 Device for laying a wrapping made from a thin pleated film on a convex body

Country Status (3)

Country Link
AU (1) AU1695092A (en)
FR (1) FR2675464B1 (en)
WO (1) WO1992018387A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130168485A1 (en) * 2012-01-04 2013-07-04 F.B. Balzanelli Avvolgitori S.P.A. Method and Apparatus for Winding Up Tubes in Spool Form and for Wrapping the Spool Formed

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2072129A (en) * 1980-03-20 1981-09-30 Reis Standardwerk Wrapping device for coin packaging machines
US4920730A (en) * 1987-08-31 1990-05-01 Nihon Kinsen Kikai Kabushiki Kaisha Coin wrapping apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2072129A (en) * 1980-03-20 1981-09-30 Reis Standardwerk Wrapping device for coin packaging machines
US4920730A (en) * 1987-08-31 1990-05-01 Nihon Kinsen Kikai Kabushiki Kaisha Coin wrapping apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130168485A1 (en) * 2012-01-04 2013-07-04 F.B. Balzanelli Avvolgitori S.P.A. Method and Apparatus for Winding Up Tubes in Spool Form and for Wrapping the Spool Formed

Also Published As

Publication number Publication date
FR2675464B1 (en) 1993-07-09
AU1695092A (en) 1992-11-17
FR2675464A1 (en) 1992-10-23

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