EP0250315B1 - Method for filling a receptacle such as a can with a solid product, especially food, in a rotary filling machine, and filling device for carrying out the method - Google Patents

Method for filling a receptacle such as a can with a solid product, especially food, in a rotary filling machine, and filling device for carrying out the method Download PDF

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Publication number
EP0250315B1
EP0250315B1 EP19870401350 EP87401350A EP0250315B1 EP 0250315 B1 EP0250315 B1 EP 0250315B1 EP 19870401350 EP19870401350 EP 19870401350 EP 87401350 A EP87401350 A EP 87401350A EP 0250315 B1 EP0250315 B1 EP 0250315B1
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EP
European Patent Office
Prior art keywords
container
pad
filling
packing
product
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Expired
Application number
EP19870401350
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German (de)
French (fr)
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EP0250315A1 (en
Inventor
André Plantier
Joseph Coppolani
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Femia Industrie
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Femia Industrie
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Publication date
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Publication of EP0250315A1 publication Critical patent/EP0250315A1/en
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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
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/20—Reducing volume of filled material
    • B65B1/24—Reducing volume of filled material by mechanical compression

Definitions

  • the present invention relates to a method of filling a container such as a can, with a solid product, in particular a food product, in a carousel filling machine comprising a certain number of filling stations distributed angularly around the axis of the machine, and an arrangement of a filling station for the implementation of this method, according to the preambles of claims 1 and 2 respectively.
  • Each filling station includes a filling arrangement equipped with a tamping pad which is movable in the axis of the box between a high position above it and a compacting position inside the box, a predetermined distance below the upper edge thereof. After the tamping operation, the tampon is removed and returned to its upper position.
  • the known filling process carried out with known filling arrangements, has the major drawback that the products after the return of the tampon and after being thus released can rise up and out of the box. If for example the boxes contain green beans, these can, after the return of the tampon, extend beyond the upper level of the boxes and be cut later when evacuating them from the machine.
  • the object of the present invention is to overcome these drawbacks and to propose a method and arrangement for filling the container, which make it possible to avoid any loss of products after filling, in the machine.
  • the method according to the invention is characterized in that after having packed the product in the box, the tamping pad is only removed to a position at the upper edge of the box, so that it is closed by the lower surface of the tampon, and that the tampon is kept in this closed position of the box until the moment of evacuation of the box from the filling machine.
  • the arrangement of a filling station according to the invention is characterized in that the device for driving the tamping pad comprises two driving means, which are mounted in series so that the first means prints a movement between the high rest position and a position at the upper edge of the box and that the second means prints a stroke of shorter length between the said position at the edge of the box and the position of settlement.
  • the two means for driving the tamping pad are formed by double-acting hydraulic jacks, mounted in series, the first jack being connected by its piston rod to said pad and by its cylinder body. to the piston rod of the second cylinder, the cylinder of which is kept fixed.
  • the arrangement of a filling station according to the invention comprises a member for lifting a box to be filled in a pressed application position from the open end of the box against the edge of the product supply orifice, made in the supply chamber, in line with the tamper.
  • the lifting member comprises a buffer which is mounted on a mobile support, by means of an elastic element such as a spring, dimensioned so as to allow a backward movement. of said buffer against said elastic element under the effect of the tamping buffer penetrating into the box, the support element of the lifting buffer possibly being the piston rod of a hydraulic cylinder.
  • Figure 1 shows the structure of a carousel filling machine, intended to fill solid products such as for example vegetables, containers, in particular cans.
  • the general structure of such a machine is known. It therefore suffices to recall briefly that it comprises a part forming a rotating carousel 1 around a fixed central part 2 mounted on a frame 3.
  • the reference numeral 4 indicates the motor which rotates the carousel 1, by means of of a reduction gear 5.
  • the carousel comprises a certain number of filling stations 7 distributed angularly equidistant from the periphery of the carousel 1, all around the latter.
  • Reference numeral 8 designates the carrier for empty boxes. These are transferred from this conveyor to the various filling stations 7 by means of a transfer star wheel device 9.
  • the invention relates to the arrangement of filling stations.
  • Each filling station 7 essentially comprises a device 10 for receiving and holding the boxes to be filled, one of which is indicated at 11, a device 12 for receiving and supplying product with filling of boxes 11 and means 13 for filling and tamping with products in boxes 11.
  • Receiving and holding devices 10 for boxes 11 and devices for supplying products 12 of all the filling stations 7 are mounted on the superimposed platforms 14 and 15, integral with the carousel 1.
  • a tray 16 is provided at the top of the carousel for mounting the various filling and tamping devices 13.
  • the reception and supply devices 12 each comprise a supply chamber 18 into which the product intended to be transferred into the boxes 11 is introduced via a hopper element 19.
  • a plate 20 is slidably mounted in the opening of the hopper 19 in the chamber 18. It makes it possible to close this chamber, after the latter has received a desired quantity of filling products intended for a box.
  • a piston 21 is movably mounted in the chamber to push the product towards a circular orifice 22, formed in the bottom of the chamber 18 in axial alignment with the boxes to be filled 11. This piston is driven by a hydraulic cylinder indicated at 23 .
  • the filling and tamping devices 13 each comprise a tamping pad 25 mounted movably in the axis of the box 11 which it must fill and of the opening 22 in the bottom of the supply chamber 18 between an extreme high position shown in Figure 1 and Figures 3 to 5 and 9 and a low tamping position.
  • Figure 7 shows the pad 28 in this position.
  • the pad 25 can occupy a third intermediate position, at the upper edge of a box 11 which has just been filled.
  • Figures 6 and 8 show the tampon in this position.
  • the drive device enabling the tamping pad 25 to occupy these three positions comprises a series mounting of two double-acting hydraulic cylinders 27 and 28.
  • the jack 27 is connected by its rod 29 to the buffer 25 and by its cylinder body at 30 to the piston rod of the jack 28, the body of which is fixedly mounted at 31 to the upper plate 16 of the carousel.
  • the function of the hydraulic cylinder 27 is to move the buffer 25 between its extreme high position and its position at the upper edge of the boxes maintained in their filling position, shown in FIGS. 4 to 6 and 8, that is to say at the plane 32 of the lower surface of the rim of the receiving device 12, which surrounds the supply orifice 22.
  • the jack 28 is adapted to impart to the piston 25 a stroke of shorter length, allowing it to move between its position at the level of the plane 32 and its tamping position shown in FIG. 7, into which it penetrates by a predetermined distance into the box which has just been filled.
  • Means 33 are provided which make it possible to vary the stroke of the piston of the jack 28.
  • the device 10 for receiving and holding the boxes 11 in a filling station 7 essentially comprises a device 35 for lifting the boxes to bring them from their position indicated by strong lines in FIG. 1 to their filling position indicated by broken lines. In this filling position, the lifting device maintains the box which must be filled in application by its upper edge against the zone surrounding the supply orifice 22 at the plane 32.
  • FIG. 2 shows the lifting device on a larger scale. It can be seen that this device comprises a lifting pad 36 which is mounted on the end of the piston rod 37 of a hydraulic cylinder 38, with the interposition of an elastic element such as the helical spring 39.
  • the pad 36 is guided by a cylindrical part 40 integral with the plate 14 of the carousel.
  • the spring 39 is dimensioned in such a way that the pad 36 is pushed elastically against the force of the spring 39 by deforming it elastically, by the tamping pad 36, when the latter cups the product contained in a box 11 which has just been filled.
  • the jack 38 can be provided with means making it possible to adjust and vary the stroke of the lifting pad 36.
  • FIGS. 3 to 9. illustrate the different stages of the process.
  • FIG. 3 a container 11 has just been placed in a filling station 7.
  • the supply chamber 18 receives the product schematically indicated at 42 which must be transferred to the box. 11.
  • the latter is raised by the lifting device 35 so that its upper edge is applied against the zone forming a stop surrounding the supply orifice 22, in axial alignment with the latter.
  • the cylinder 23 of the piston 21 movable inside the chamber 18 is actuated to bring the product 42 into the part of the chamber located above the supply orifice 22, after closing the chamber 18 to using the sliding plate 20.
  • the hydraulic cylinder 27 is actuated to lower the tamping pad 25 to a position at the upper edge of the box 11.
  • the hydraulic cylinder 28 is put into service so that the pad 25 can enter the box 11 to pack the product 42 contained therein. Under the effect of the tamping pad 25 the lifting pad 36, due to the presence of the spring 39, is somewhat pushed back. It should be noted that the box is held by the buffer 25.
  • the hydraulic cylinder 28 is again actuated, as shown in FIG. 8 to return the tamping buffer 25 to its position shown in FIG. 6 , that is to say at the upper edge of the box 11.
  • the pad 27 is kept in this closed position of the box until the latter is removed from the machine.
  • the jacks 23, 27 and 38 are actuated to return the piston 21, the tamping pad 25 and the lifting pad 36 respectively to their rest positions (FIG. 9). Now the filling station is ready to receive a new empty box 11.

Description

La présente invention concerne un procédé de remplissage d'un récipient tel qu'une boîte de conserve, par un produit solide notamment alimentaire, dans une machine remplisseuse à carrousel comprenant un certain nombre de postes de remplissage répartis angulairement autour de l'axe de la machine, et un agencement d'un poste de remplissage pour la mise en oeuvre de ce procédé, selon les préambuls des revendications 1 et 2 respectivement.The present invention relates to a method of filling a container such as a can, with a solid product, in particular a food product, in a carousel filling machine comprising a certain number of filling stations distributed angularly around the axis of the machine, and an arrangement of a filling station for the implementation of this method, according to the preambles of claims 1 and 2 respectively.

Des machines remplisseuses à carrousel de ce type sont connues. Chaque poste de remplissage comprend un agencement de remplissage équipé d'un tampon tasseur qui est mobile dans l'axe de la boîte entre une position haute au-dessus de celle-ci et une position de tassement à l'intérieur de la boîte, à une distance prédéterminée en dessous du bord supérieur de celle-ci. Après l'opération de tassement, le tampon est retiré et ramené dans sa position haute. Le procédé de remplissage connu, effectué avec des agencements de remplissage connus a pour inconvénient majeur que les produits après le retour du tampon et après avoir été ainsi libérés peuvent remonter et sortir de la boîte. Si par exemple les boîtes contiennent des haricots verts, ceux- ci peuvent, après le retour du tampon, s'étendre au-delà du niveau supérieur des boîtes et être coupés ultérieurement lors de l'évacuation de celles-ci de la machine. On peut donc constater, de façon générale, que le procédé et les agencements de remplissage connus ont comme inconvénient considérable, que le poids du produit contenu dans les boîtes après leur évacuation de la machine est inférieur au poids initial pourtant soigneusement dosé, et que des produits ou morceaux de produits perdus tombent à l'intérieur de la machine, ce qui nécessite des arrêts et nettoyages fréquents de celle-ci.Carousel filling machines of this type are known. Each filling station includes a filling arrangement equipped with a tamping pad which is movable in the axis of the box between a high position above it and a compacting position inside the box, a predetermined distance below the upper edge thereof. After the tamping operation, the tampon is removed and returned to its upper position. The known filling process, carried out with known filling arrangements, has the major drawback that the products after the return of the tampon and after being thus released can rise up and out of the box. If for example the boxes contain green beans, these can, after the return of the tampon, extend beyond the upper level of the boxes and be cut later when evacuating them from the machine. It can therefore be seen, in general, that the known method and filling arrangements have the considerable disadvantage that the weight of the product contained in the boxes after they have been removed from the machine is less than the initial weight, however carefully dosed, and that products or pieces of lost products fall inside the machine, which requires frequent stops and cleaning of the latter.

La présente invention a pour but de pallier ces inconvénients et de proposer un procédé et un agencement de remplissage de récipient, qui permettent d'éviter toute perte de produits après le remplissage, dans la machine.The object of the present invention is to overcome these drawbacks and to propose a method and arrangement for filling the container, which make it possible to avoid any loss of products after filling, in the machine.

Pour atteindre ce but, le procédé selon l'invention est caractérisé en ce qu'après avoir tassé le produit dans la boîte, le tampon tasseur est seulement retiré jusqu'à une position au niveau du bord supérieur de la boîte, de façon que celle-ci soit fermée par la surface inférieure du tampon, et que le tampon est maintenu dans cette position de fermeture de la boîte jusqu'à l'instant de l'évacuation de la boîte de la machine remplisseuse.To achieve this object, the method according to the invention is characterized in that after having packed the product in the box, the tamping pad is only removed to a position at the upper edge of the box, so that it is closed by the lower surface of the tampon, and that the tampon is kept in this closed position of the box until the moment of evacuation of the box from the filling machine.

Pour la mise en oeuvre de ce procédé, l'agencement d'un poste de remplissage selon l'invention est caractérisé en ce que le dispositif d'entraînement du tampon tasseur comprend deux moyens d'entraînement, qui sonte montés en série de façon que le premier moyen imprime au tampon un mouvement entre la position haute de repos et une position au niveau du bord supérieur de la boîte et que le second moyen imprime au tampon une course de plus faible longueur entre ladite position au bord de la boîte et la position de tassement.For the implementation of this method, the arrangement of a filling station according to the invention is characterized in that the device for driving the tamping pad comprises two driving means, which are mounted in series so that the first means prints a movement between the high rest position and a position at the upper edge of the box and that the second means prints a stroke of shorter length between the said position at the edge of the box and the position of settlement.

Selon une caractéristique avantageuse de l'invention, les deux moyens d'entraînement du tampon tasseur sont formés par des vérins hydrauliques à double effet, montés en série, le premier vérin étant relié par sa tige de piston audit tampon et par son corps de cylindre à la tige de piston du second vérin dont le cylindre est maintenu fixe.According to an advantageous characteristic of the invention, the two means for driving the tamping pad are formed by double-acting hydraulic jacks, mounted in series, the first jack being connected by its piston rod to said pad and by its cylinder body. to the piston rod of the second cylinder, the cylinder of which is kept fixed.

Selon une autre caractéristique avantageuse de l'invention, l'agencement d'un poste de remplissage, selon l'invention, comprend un organe de soulèvement d'une boîte à remplir dans une position d'application pressée de l'extrémité ouverte de la boîte contre le bord de l'orifice d'alimentation en produits, pratiqué dans la chambre d'alimentation, dans l'axe du tampon tasseur.According to another advantageous characteristic of the invention, the arrangement of a filling station according to the invention comprises a member for lifting a box to be filled in a pressed application position from the open end of the box against the edge of the product supply orifice, made in the supply chamber, in line with the tamper.

Selon une autre caractéristique avantageuse de l'invention, l'organe de soulèvement comprend un tampon qui est monté sur un support mobile, par l'intermédiaire d'un élément élastique tel qu'un ressort, dimensionné de façon à permettre un mouvement de recul dudit tampon à l'encontre dudit élément élastique sous l'effet du tampon tasseur pénétrant dans la boîte, l'élément de support du tampon de soulèvement pouvant être la tige de piston d'un vérin hydraulique.According to another advantageous characteristic of the invention, the lifting member comprises a buffer which is mounted on a mobile support, by means of an elastic element such as a spring, dimensioned so as to allow a backward movement. of said buffer against said elastic element under the effect of the tamping buffer penetrating into the box, the support element of the lifting buffer possibly being the piston rod of a hydraulic cylinder.

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 coupe axiale verticale d'une machine remplisseuse équipée d'une multitude de postes de remplissage agencés selon la présente invention ;
  • - la figure 2 est une vue en coupe axiale, à plus grande échelle du détail entouré du cercle Il sur la figure 1, et ;
  • - les figures 3 à 9 illustrent de façon schématique le procédé selon la présente 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 vertical axial sectional view of a filling machine equipped with a multitude of filling stations arranged according to the present invention;
  • - Figure 2 is an axial sectional view, on a larger scale of the detail surrounded by the circle II in Figure 1, and;
  • - Figures 3 to 9 schematically illustrate the method according to the present invention.

La figure 1 montre la structure d'une machine remplisseuse à carrousel, destinée à remplir de produits solides tels que par exemple des légumes, des récipients notamment des boîtes de conserve.Figure 1 shows the structure of a carousel filling machine, intended to fill solid products such as for example vegetables, containers, in particular cans.

La structure générale d'une telle machine est connue. Il suffit donc de rappeler brièvement qu'elle comprend une partie formant carrousel 1 rotative autour d'une partie centrale fixe 2 montée sur un bâti 3. Le chiffre de référence 4 indique le moteur qui entraîne en rotation le carrousel 1, par l'intermédiaire d'un engrenage réducteur 5. Le carrousel comprend un certain nombre de postes de remplissage 7 répartis de façon angulairement équidistante à la périphérie du carrousel 1, tout autour de celui-ci. Le chiffre de référence 8 désigne le transporteur d'amenée des boîtes vides. Celles-ci sont transférées depuis ce transporteur aux différents postes de remplissage 7 par l'intermédiaire d'un dispositif à roue en étoile de transfert 9.The general structure of such a machine is known. It therefore suffices to recall briefly that it comprises a part forming a rotating carousel 1 around a fixed central part 2 mounted on a frame 3. The reference numeral 4 indicates the motor which rotates the carousel 1, by means of of a reduction gear 5. The carousel comprises a certain number of filling stations 7 distributed angularly equidistant from the periphery of the carousel 1, all around the latter. Reference numeral 8 designates the carrier for empty boxes. These are transferred from this conveyor to the various filling stations 7 by means of a transfer star wheel device 9.

L'invention concerne l'agencement des postes de remplissage.The invention relates to the arrangement of filling stations.

Chaque poste de remplissage 7 comprend essentiellement un dispositif 10 de réception et de maintien des boîtes à remplir, dont l'une est indiquée en 11, un dispositif 12 de réception et d'alimentation en produit de remplissage des boîtes 11 et des moyens 13 de remplissage et de tassage des produits dans les boîtes 11. Les dispositifs de réception et de maintien 10 des boîtes 11 et les dispositifs d'alimentation en produits 12 de tous les postes de remplissage 7 sont montés sur les plates-formes 14 et 15 superposées, solidaires du carrousel 1. Un plateau 16 est prévu en haut du carrousel pour le montage des différents dispositifs de remplissage et de tassage 13.Each filling station 7 essentially comprises a device 10 for receiving and holding the boxes to be filled, one of which is indicated at 11, a device 12 for receiving and supplying product with filling of boxes 11 and means 13 for filling and tamping with products in boxes 11. Receiving and holding devices 10 for boxes 11 and devices for supplying products 12 of all the filling stations 7 are mounted on the superimposed platforms 14 and 15, integral with the carousel 1. A tray 16 is provided at the top of the carousel for mounting the various filling and tamping devices 13.

Les dispositifs de réception et d'alimentation 12 comprennent chacun une chambre d'alimentation 18 dans laquelle le produit destiné à être transféré dans les boîtes 11 est introduite par l'intermédiaire d'un élément formant trémie 19. Une plaque 20 est montée coulissante dans l'ouverture de la trémie 19 dans la chambre 18. Elle permet de fermer cette chambre, après que celle-ci ait reçu une quantité désirée de produits de remplissage destinés à une boîte. Un piston 21 est monté mobile dans la chambre pour repousser le produit vers un orifice 22 de forme circulaire, pratiqué dans le fond de la chambre 18 en alignement axial avec les boîtes à remplir 11. Ce piston est entraîné par un vérin hydraulique indiqué en 23.The reception and supply devices 12 each comprise a supply chamber 18 into which the product intended to be transferred into the boxes 11 is introduced via a hopper element 19. A plate 20 is slidably mounted in the opening of the hopper 19 in the chamber 18. It makes it possible to close this chamber, after the latter has received a desired quantity of filling products intended for a box. A piston 21 is movably mounted in the chamber to push the product towards a circular orifice 22, formed in the bottom of the chamber 18 in axial alignment with the boxes to be filled 11. This piston is driven by a hydraulic cylinder indicated at 23 .

Les dispositifs de remplissage et de tassage 13 comprennent chacun un tampon tasseur 25 monté mobile dans l'axe de la boîte 11 qu'il doit remplir et de l'ouverture 22 dans le fond de la chambre d'alimentation 18 entre une position extrême haute représentée à la figure 1 et aux figures 3 à 5 et 9 et une position basse de tassage. La figure 7 montre le tampon 28 dans cette position. Le tampon 25 peut occuper une troisième position intermédiaire, au niveau du rebord supérieur d'une boîte 11 venant d'être remplie. Les figures 6 et 8 montrent le tampon dans cette position.The filling and tamping devices 13 each comprise a tamping pad 25 mounted movably in the axis of the box 11 which it must fill and of the opening 22 in the bottom of the supply chamber 18 between an extreme high position shown in Figure 1 and Figures 3 to 5 and 9 and a low tamping position. Figure 7 shows the pad 28 in this position. The pad 25 can occupy a third intermediate position, at the upper edge of a box 11 which has just been filled. Figures 6 and 8 show the tampon in this position.

Le dispositif d'entraînement permettant au tampon tasseur 25 d'occuper ces trois positions comprend un montage en série de deux vérins hydrauliques à double effet 27 et 28. Le vérin 27 est relié par sa tige 29 au tampon 25 et par son corps de cylindre en 30 à la tige de pistion du vérin 28 dont le corps est montée fixe en 31 au plateau supérieur 16 du carrousel. Le vérin hydraulique 27 a pour fonction de déplacer le tampon 25 entre sa position extrême haute et sa position au niveau du bord supérieur des boîtes maintenues dans leur position de remplissage, représentées aux figures 4 à 6 et 8, c'est-à-dire au niveau du plan 32 de la surface inférieure du rebord du dispositif de réception 12, qui entoure l'orifice d'alimentation 22. Le vérin 28 est adapté pour imprimer au piston 25 une course de plus faible longueur, lui permettant de se déplacer entre sa position au niveau du plan 32 et sa position de tassage représentée à la figure 7, dans laquelle il pénètre selon une distance prédéterminée dans la boîte venant d'être remplie. Des moyens 33 sont prévus, qui permettent de faire varier la course du piston du vérin 28.The drive device enabling the tamping pad 25 to occupy these three positions comprises a series mounting of two double-acting hydraulic cylinders 27 and 28. The jack 27 is connected by its rod 29 to the buffer 25 and by its cylinder body at 30 to the piston rod of the jack 28, the body of which is fixedly mounted at 31 to the upper plate 16 of the carousel. The function of the hydraulic cylinder 27 is to move the buffer 25 between its extreme high position and its position at the upper edge of the boxes maintained in their filling position, shown in FIGS. 4 to 6 and 8, that is to say at the plane 32 of the lower surface of the rim of the receiving device 12, which surrounds the supply orifice 22. The jack 28 is adapted to impart to the piston 25 a stroke of shorter length, allowing it to move between its position at the level of the plane 32 and its tamping position shown in FIG. 7, into which it penetrates by a predetermined distance into the box which has just been filled. Means 33 are provided which make it possible to vary the stroke of the piston of the jack 28.

Le dispositif de réception et de maintien 10 des boîtes 11 dans un poste de remplissage 7 comprend essentiellement un dispositif de soulèvement 35 des boîtes pour les amener de leur position indiquée en traits forts sur la figure 1 dans leur position de remplissage indiquée en traits interrompus. Dans cette position de remplissge, le dispositif de soulèvement maintient la boîte qui doit être remplie en application par son bord supérieur contre la zone entourant l'orifice d'alimentation 22 au niveau du plan 32.The device 10 for receiving and holding the boxes 11 in a filling station 7 essentially comprises a device 35 for lifting the boxes to bring them from their position indicated by strong lines in FIG. 1 to their filling position indicated by broken lines. In this filling position, the lifting device maintains the box which must be filled in application by its upper edge against the zone surrounding the supply orifice 22 at the plane 32.

La figure 2 montre le dispositif de soulèvement à plus grande échelle. On constate que ce dispositif comprend un tampon de soulèvement 36 qui est monté sur le bout de la tige de piston 37 d'un vérin hydraulique 38, avec l'interposition d'un élément élastique tel que le ressort hélicoïdal 39. Le tampon 36 est guidé par une partie cylindrique 40 solidaire du plateau 14 du carrousel. Le ressort 39 est dimensionné de telle manière que le tampon 36 est repoussé élastiquement à l'encontre de la force du ressort 39 en le déformant élastiquement, par le tampon de tassage 36, lorsque celui-ci tasse le produit contenu dans une boîte 11 qui vient d'être remplie. Bien entendu, le vérin 38 peut être pourvu de moyens permettant de régler et de faire varier la course du tampon de soulèvement 36.Figure 2 shows the lifting device on a larger scale. It can be seen that this device comprises a lifting pad 36 which is mounted on the end of the piston rod 37 of a hydraulic cylinder 38, with the interposition of an elastic element such as the helical spring 39. The pad 36 is guided by a cylindrical part 40 integral with the plate 14 of the carousel. The spring 39 is dimensioned in such a way that the pad 36 is pushed elastically against the force of the spring 39 by deforming it elastically, by the tamping pad 36, when the latter cups the product contained in a box 11 which has just been filled. Of course, the jack 38 can be provided with means making it possible to adjust and vary the stroke of the lifting pad 36.

On décrira ci-après le procédé de remplissage, selon l'invention, en se reportant aux figures 3 à 9. Ces figures illustrent les différentes étapes du procédé.The filling process according to the invention will be described below, referring to FIGS. 3 to 9. These figures illustrate the different stages of the process.

A la figure 3 un récipient 11 vient d'être mis en place dans un poste de remplissage 7. Ensuite, comme le montre la figure 4, la chambre d'alimentation 18 reçoit le produit schématiquement indiqué en 42 qui doit être transféré dans la boîte 11. Celle-ci est soulevée par le dispositif de soulèvement 35 de façon que son bord supérieur soit appliqué contre la zone formant butée entourant l'orifice d'alimentation 22, en alignement axial avec celui-ci. Puis le vérin 23 du piston 21 mobile à l'intérieur de la chambre 18 est actionné pour amener le produit 42 dans la partie de la chambre se trouvant au-dessus de l'orifice d'alimentation 22, après fermeture de la chambre 18 à l'aide de la plaque coulissante 20. Dans l'opération suivante, selonla figure 6, le vérin hydraulique 27 est actionné pour abaisser le tampon tasseur 25 jusqu'à une position au niveau du bord supérieur de la boîte 11. Puis, comme illustré à la figure 7, le vérin hydraulique 28 est mis en service pour que le tampon 25 puisse pénétrer dans la boîte 11 pour tasser le produit 42 contenu dans celle-ci. Sous l'effet du tampon de tassage 25 le tampon de soulèvement 36, dû à la présence du ressort 39, est quelque peu repoussé. Il est à noter que la boîte est maintenue par le tampon 25. Après l'opération de tassage, le vérin hydraulique 28 est à nouveau actionné, comme le montre la figure 8 pour ramener le tampon tasseur 25 dans sa position représentée à la figure 6, c'est-à-dire au niveau du bord supérieur de la boîte 11. Le tampon 27 est maintenu dans cette position de fermeture de la boîte jusqu'à ce que celle-ci soit évacuée de la machine. Puis les vérins 23, 27 et 38 sont actionnés pour ramener respectivement le piston 21, le tampon de tassage 25 et le tampon de soulèvement 36 dans leurs positions de repos (figure 9). Maintenant le poste de remplissage est prêt pour la réception d'une nouvelle boîte vide 11.In FIG. 3, a container 11 has just been placed in a filling station 7. Then, as shown in FIG. 4, the supply chamber 18 receives the product schematically indicated at 42 which must be transferred to the box. 11. The latter is raised by the lifting device 35 so that its upper edge is applied against the zone forming a stop surrounding the supply orifice 22, in axial alignment with the latter. Then the cylinder 23 of the piston 21 movable inside the chamber 18 is actuated to bring the product 42 into the part of the chamber located above the supply orifice 22, after closing the chamber 18 to using the sliding plate 20. In the following operation, according to FIG. 6, the hydraulic cylinder 27 is actuated to lower the tamping pad 25 to a position at the upper edge of the box 11. Then, as illustrated in Figure 7, the hydraulic cylinder 28 is put into service so that the pad 25 can enter the box 11 to pack the product 42 contained therein. Under the effect of the tamping pad 25 the lifting pad 36, due to the presence of the spring 39, is somewhat pushed back. It should be noted that the box is held by the buffer 25. After the tamping operation, the hydraulic cylinder 28 is again actuated, as shown in FIG. 8 to return the tamping buffer 25 to its position shown in FIG. 6 , that is to say at the upper edge of the box 11. The pad 27 is kept in this closed position of the box until the latter is removed from the machine. Then the jacks 23, 27 and 38 are actuated to return the piston 21, the tamping pad 25 and the lifting pad 36 respectively to their rest positions (FIG. 9). Now the filling station is ready to receive a new empty box 11.

Claims (7)

1. Method for filling containers (11) such as cans with a solid product in particular a food product, in a filling machine with a carrousel comprising a plurality of filling units (7) angularly distributed about the axis of the machine, according to which an empty container (11) open at its upper end is transferred into the machine to one of the said filling units, the container is filled with the said product and the product contained in the container is packed with the aid of a packing pad (25) movable along the axis of the container between an upper position over the container and a position for the packing of the product into the container, inside same, characterized in that, after packing of the product, the packing pad (25) is withdrawn only up to an intermediate position level with the upper edge of container (11), so that this one is closed by the lower surface of pad (25) and so that the pad is maintained in this intermediate closing position of the container up to the moment of withdrawal of the container from the filling machine.
2. Arrangement of a station (7) for filling containers (11) such as cans with a solid product in particular a food product, for a filling machine preferably with a carrousel, comprising a plurality of filling units angularly distributed about the axis of the carrousel, of the type comprising a device for holding an empty container (11), open at its upper end, in its filling position under an aperture (22) the shape of which corresponds to the cross-section of the can, formed in the bottom of a receiving chamber (18) for the filling product of the container, axially aligned with the axis of the container, a packing pad (25) for the product contained in the container, movable along the axis of the container according to a reciprocating movement, between an extreme upper position at a predetermined distance over the container and a lower position for packing the product contained in the container, under the effect of an actuating device, characterized in that the actuating device of the packing pad (25) comprises two actuating means (27, 28) mounted in series, so that the first means (27) transmits to the packing pad a movement between the said extreme upper position and an intermediate position on a level (32) with the upper ledge of the container (11) and in that the second means (28) transmits to the pad (25) a stroke of smaller length between the said intermediate position on a level (32) with the edge of the container and the said packing position.
3. Arrangement according to claim 2, characterized in that the two actuating means (27, 29) of the packing pad (25) are formed of double-acting hydraulic jacks, mounted in series, the first hydraulic jack (27) being connected through its piston rod (29) with the said pad (25) and through its cylinder body (at 30) with the piston rod of the second hydraulic jack (28) which cylinder is mounted in a fixed position (at 31).
4. Arrangement according to one of claims 2 or 3, characterized in that it comprises a device for raising (35) containers (11) to be filled into their urging position of the open end of the containers against the edge of the product-feeding aperture (22) formed in the feeding chamber (18) along the axis of the packing pad.
5. Arrangement according to claim 4, characterized in that the aforesaid raising means (35) comprises a pad (36) which is mounted on a movable support (37), through a resilient element (39), such as a spring, dimensioned so as to permit a backward movement of the said pad (36) against said resilient element under the effect of the packing pad (25) penetrating into the can, the support element (37) of pad (36) being possibly the piston rod of a hydraulic jack (38).
6. Arrangement according to one of claims 3 to 5, characterized in that the aforesaid second actuating means (28) for the packing pad (25) comprises means (33) for adjusting or modifying the aforesaid stroke of the smallest packing length.
7. Arrangement according to one of claims 4 to 6, characterized in that the raising device comprises means for adjusting the raising stroke.
EP19870401350 1986-06-17 1987-06-16 Method for filling a receptacle such as a can with a solid product, especially food, in a rotary filling machine, and filling device for carrying out the method Expired EP0250315B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8608748 1986-06-17
FR8608748A FR2600037B1 (en) 1986-06-17 1986-06-17 PROCESS FOR FILLING A CONTAINER SUCH AS A CAN, WITH A SOLID PRODUCT, PARTICULARLY FOOD, IN A CARROUSEL FILLING MACHINE AND ARRANGEMENT OF A FILLING STATION FOR IMPLEMENTING THE PROCESS.

Publications (2)

Publication Number Publication Date
EP0250315A1 EP0250315A1 (en) 1987-12-23
EP0250315B1 true EP0250315B1 (en) 1989-12-20

Family

ID=9336415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870401350 Expired EP0250315B1 (en) 1986-06-17 1987-06-16 Method for filling a receptacle such as a can with a solid product, especially food, in a rotary filling machine, and filling device for carrying out the method

Country Status (4)

Country Link
EP (1) EP0250315B1 (en)
DE (2) DE250315T1 (en)
ES (1) ES2001739B3 (en)
FR (1) FR2600037B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE155621C (en) *
US3552454A (en) * 1968-10-22 1971-01-05 William A Deming Sr Can filler

Also Published As

Publication number Publication date
FR2600037A1 (en) 1987-12-18
EP0250315A1 (en) 1987-12-23
DE250315T1 (en) 1988-07-21
ES2001739B3 (en) 1990-03-16
DE3761196D1 (en) 1990-01-25
FR2600037B1 (en) 1988-10-21
ES2001739A4 (en) 1988-06-16

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