EP0559513B1 - Filling nozzle - Google Patents

Filling nozzle Download PDF

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Publication number
EP0559513B1
EP0559513B1 EP19930400416 EP93400416A EP0559513B1 EP 0559513 B1 EP0559513 B1 EP 0559513B1 EP 19930400416 EP19930400416 EP 19930400416 EP 93400416 A EP93400416 A EP 93400416A EP 0559513 B1 EP0559513 B1 EP 0559513B1
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EP
European Patent Office
Prior art keywords
conical
filler spout
tubular body
calibration
bottom orifice
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19930400416
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German (de)
French (fr)
Other versions
EP0559513A1 (en
Inventor
Jean-Luc Achard
Gabriel Picaud
Gérard Sabiron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe dEtude et Realisation dApplications Composites SA SERAC
Original Assignee
Societe dEtude et Realisation dApplications Composites SA SERAC
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Publication of EP0559513A1 publication Critical patent/EP0559513A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22—Details
    • B67C3/28—Flow-control devices, e.g. using valves
    • B67C3/281—Profiled valve bodies for smoothing the flow at the outlet of the filling nozzle
    • 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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/001—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves
    • B65B39/004—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers with flow cut-off means, e.g. valves moving linearly

Definitions

  • the present invention relates to a filling spout and more particularly a filling spout for a weight metering machine.
  • filling spouts In order to return the jet to laminar speed when it leaves the filling spout, filling spouts are known which are fitted with a grid in the vicinity of the lower orifice of the filling spout.
  • the particles gradually close the mesh of the grid until that it is completely blocked and requires the intervention of an operator.
  • the jet leaving the filling spout has only a low stability and the impact of the jet on the surface of the liquid contained in the container generally destroys this stability and again tends to cause foaming.
  • An object of the invention is to propose a filling spout having a structure allowing a jet to be obtained particularly stable at the outlet of the filling spout and thus minimize the formation of foam in the container.
  • a filling spout comprising a tubular body having at least one portion of conical internal wall adjacent to a lower orifice of the filling spout, and a calibrating member having at least a conical calibration part disposed opposite the conical internal wall part of the tubular body and delimiting therewith an annular space of decreasing section up to the lower orifice of the spout, this annular space having a length at least equal to approximately eight times the width of the annular space taken in a radial direction at the level of the lower orifice.
  • the product to be conditioned is subjected to an acceleration which brings the jet of product to a very stable laminar regime whatever the disturbances to which the product is subjected upstream of the filling spout, and the product flows in an annular vein having no obstacle so that the device according to the invention can be used to condition liquids containing particles, in particular fruit juices containing pulp.
  • the calibration member is movable axially inside the tubular body.
  • the displacement of the calibration member makes it possible to adjust the flow rate of the filling spout while retaining the properties of acceleration of the product in the vicinity of the lower orifice of the filling spout.
  • the calibrating member is axially movable and has been shown in a closed position of the filling spout on the left half of the figure and in an open position of the filling spout on the right half of the figure.
  • the filling spout comprises a tubular body 1 equipped at its upper end with a collar 2 intended to connect it to a tube for supplying the product to be packaged.
  • the internal wall of the tubular body comprises a first cylindrical part 3 adjacent to the upper end of the tubular body followed by a series of conical parts 4 which converge towards the lower end of the filling spout, then a cylindrical part 5 followed by a conical part 6, the lower end of which coincides with the lower orifice 7 of the filling spout.
  • the internal wall of the filling spout has a recess 8 followed by a divergent conical part 9.
  • the filling spout comprises a calibrating member comprising a conical lower part 10 converging downwards and extending opposite the conical part 6 of the internal wall of the tubular body 1.
  • the conical part 10 has a conicity equal to the conical part 6 so that the opposite faces of the conical part 10 and the conical part 6 are parallel.
  • the calibrating member has a conical part 11 which diverges downwards and the upper end of which is connected by a connecting rod 12 to a closing valve 13 comprising an external surface part 14 having a conicity identical to one of the conical parts 4 of the inner wall of the tubular body 1 so as to ensure a tight closure of the filling spout when the closure valve 13 is applied to the corresponding conical part 4.
  • the connecting rod 12 comprises centering fins 15 extending radially in the part cylindrical 5 of the inner wall of the tubular body 1.
  • the centering fins 15 are mounted to slide in the cylindrical part 5.
  • the closing valve 13 is connected to a control rod 16 associated with a mechanism not shown to adjust the axial position of the sizing member in the filling spout.
  • Figure 1 illustrates the first embodiment of the invention in a closed position.
  • the closing valve 13 is then supported on the valve seat 4 while the conical part 10 is slightly spaced from the opposite conical part 6.
  • the spacing between the conical parts 6 and 10 is sufficiently small to prevent the product contained in the tubular body 1 below the closure valve 13 from flowing when the closure valve 13 is applied to its seat.
  • the lower end of the conical part 10 protrudes from the lower orifice 7 and is protected by the wall part of the tubular body 1 corresponding to the divergent conical part 9.
  • the right half of the figure illustrates the filling spout with the calibrating member in a substantially maximum open position for which the lower end of the conical part 10 coincides with the lower orifice 7.
  • the surface parts conical opposite 6 and 10 are of the same conicity and are therefore parallel to each other, the conicity of these surface parts ensures a decrease in the passage section between these surface parts, taken along planes perpendicular to the longitudinal axis of the tubular body 1.
  • the upper end of the conical part 10 is at a level higher than the upper end of the conical part 6 so that the length L according to which the annular space comprised between the surface parts 6 and 10 is decreasing coincides with the height of the conical part 6.
  • the conical part 10 of the calibrating member may have a taper slightly greater than the taper of the wall part 6 compared with the time that the difference in taper between the wall part 10 and the wall part 6 is sufficient for the section of the annular space between the conical wall parts 6 and 10 to decrease over a length L at least equal to hu it times the width l of the annular space taken in a radial direction at the level of the lower orifice 7.
  • This value is satisfactory for most products but it is not absolutely critical and can be slightly adapted according to the product to condition.
  • Figure 2 illustrates a second embodiment of the invention for which the parts having a function identical to that of Figure 1 have been referenced with the same reference numerals.
  • the tubular body 1 is designed to be mounted directly in an orifice in a lower wall of a supply tank and, for this purpose, the mounting collar 2 is arranged in the lower part of the tubular body 1 which this time has supply openings 17 through which the product to be packaged flows radially before flowing axially in the annular space comprised between the conical surface part 10 of the calibrating member and the internal wall opposite the tubular body 1.
  • the internal guide surface 5 of the tubular body 1 extends above the feed openings 17 and the calibrating member comprises a cylindrical connecting part 12 which is connected directly to the lower conical part 10.
  • the conical surface part 6 of the internal surface of the tubular body 1 is divided into an upper surface part 6.1 having a taper greater than the taper of the conical surface part 10, and a lower part 6.2 whose the taper is equal to the taper of the tapered surface portion 10 of the sizing member.
  • the lower edge of the conical part 6.1 is slightly spaced from the lower orifice 7 so that the conical part 6.2 constitutes a seat for the conical part 10 of the calibration member and, when the latter is in the low position illustrated on the left part of FIG. 2, the conical surface part 10 of the calibration member acts as a closing valve.
  • the section of the annular space between the conical surface part 10 of the calibration member and the conical surface part 6 is thus decreasing from the supply orifices 17 to the lower orifice 7 of the filling spout and an acceleration of the product is therefore obtained, as previously, favorable to the stability of the jet exiting the filling spout.
  • the lower portion 10.1 of the conical calibration portion 10 extending beyond the lower orifice 7 for a closed position of the filling spout has a taper greater than a portion immediately upstream with reference to a direction of product flow in the filling spout. It has been observed that this minimizes the risk of a drop forming when the filling spout is closed. It is desirable that the taper of the lower portion of the conical surface portion is as strong as possible, but it must be ensured that for an open position of the filling spout the section of the annular space between the surfaces 6 and 10 remains decreasing. This therefore limits in practice the taper of the lower portion of the conical calibration part 10.
  • the invention is not limited to the embodiments described and it is possible to make variant embodiments without departing from the scope of the invention.
  • the guide member it is not even necessary for the guide member to be pierced with openings since the product to be packaged penetrates into the tubular body 1 below the guide member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Basic Packing Technique (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Nozzles (AREA)
  • Closures For Containers (AREA)

Description

La présente invention concerne un bec de remplissage et plus particulièrement un bec de remplissage pour une machine à dosage pondéral.The present invention relates to a filling spout and more particularly a filling spout for a weight metering machine.

On sait que l'un des problèmes du dosage pondéral réside dans le débit des becs de remplissage. En effet, si l'ouverture du bec est très faible, le débit à travers le bec est lui-même très faible et le remplissage est très lent. Si au contraire on prévoit des becs de remplissage ayant une grande ouverture et donc un débit important, la cadence de chaque bec est augmentée mais des phénomènes défavorables apparaissent. En particulier un jet à fort débit s'écoule généralement selon un régime turbulent qui tend à provoquer un moussage du produit. La formation de mousse est elle-même un inconvénient important car les récipients sont généralement dimensionnés pour avoir un faible volume libre au-dessus du produit lorsque le récipient est plein et la formation de mousse provoque donc généralement un débordement en fin de remplissage.We know that one of the problems with weight dosing resides in the flow rate of the filling spouts. In fact, if the opening of the spout is very small, the flow rate through the spout is itself very low and the filling is very slow. If on the contrary provision is made for filling spouts having a large opening and therefore a high flow rate, the rate of each spout is increased but unfavorable phenomena appear. In particular, a high flow jet generally flows in a turbulent regime which tends to cause foaming of the product. The formation of foam is itself an important drawback since the containers are generally sized to have a small free volume above the product when the container is full and the formation of foam therefore generally causes an overflow at the end of filling.

Afin de faire revenir le jet en régime laminaire au moment de sa sortie du bec de remplissage, on connaît des becs de remplissage équipés d'une grille au voisinage de l'orifice inférieur du bec de remplissage. Toutefois, dans le cas de produits contenant des particules d'une dimension importante par rapport aux mailles de la grille, par exemple de la pulpe dans le cas du conditionnement de jus de fruit, les particules obturent progressivement les mailles de la grille jusqu'à ce que celle-ci soit totalement bouchée et nécessite une intervention d'un opérateur. De plus, dans le cas d'une grille, le jet sortant du bec de remplissage n'a qu'une faible stabilité et l'impact du jet sur la surface du liquide contenu dans le récipient détruit généralement cette stabilité et tend à nouveau à provoquer la formation de mousse.In order to return the jet to laminar speed when it leaves the filling spout, filling spouts are known which are fitted with a grid in the vicinity of the lower orifice of the filling spout. However, in the case of products containing particles of a large size relative to the mesh of the grid, for example pulp in the case of the packaging of fruit juice, the particles gradually close the mesh of the grid until that it is completely blocked and requires the intervention of an operator. In addition, in the case of a grid, the jet leaving the filling spout has only a low stability and the impact of the jet on the surface of the liquid contained in the container generally destroys this stability and again tends to cause foaming.

Un but de l'invention est de proposer un bec de remplissage ayant une structure permettant d'obtenir un jet particulièrement stable à la sortie du bec de remplissage et minimiser ainsi la formation de mousse dans le récipient.An object of the invention is to propose a filling spout having a structure allowing a jet to be obtained particularly stable at the outlet of the filling spout and thus minimize the formation of foam in the container.

En vue de la réalisation de ce but, on propose selon l'invention un bec de remplissage comportant un corps tubulaire ayant au moins une partie de paroi interne conique adjacente à un orifice inférieur du bec de remplissage, et un organe de calibrage ayant au moins une partie de calibrage conique disposée en regard de la partie de paroi interne conique du corps tubulaire et délimitant avec celle-ci un espace annulaire de section décroissante jusqu'à l'orifice inférieur du bec, cet espace annulaire ayant une longueur au moins égale à environ huit fois la largeur de l'espace annulaire prise selon une direction radiale au niveau de l'orifice inférieur.In order to achieve this goal, there is provided according to the invention a filling spout comprising a tubular body having at least one portion of conical internal wall adjacent to a lower orifice of the filling spout, and a calibrating member having at least a conical calibration part disposed opposite the conical internal wall part of the tubular body and delimiting therewith an annular space of decreasing section up to the lower orifice of the spout, this annular space having a length at least equal to approximately eight times the width of the annular space taken in a radial direction at the level of the lower orifice.

Ainsi, avant sa sortie du bec de remplissage, le produit à conditionner est soumis à une accélération qui ramène le jet de produit à un régime laminaire très stable quelles que soient les perturbations auxquelles le produit est soumis en amont du bec de remplissage, et le produit s'écoule selon une veine annulaire ne comportant aucun obstacle de sorte que le dispositif selon l'invention peut être utilisé pour conditionner des liquides contenant des particules en particulier des jus de fruit contenant de la pulpe.Thus, before it leaves the filling spout, the product to be conditioned is subjected to an acceleration which brings the jet of product to a very stable laminar regime whatever the disturbances to which the product is subjected upstream of the filling spout, and the product flows in an annular vein having no obstacle so that the device according to the invention can be used to condition liquids containing particles, in particular fruit juices containing pulp.

Selon une version avantageuse de l'invention, l'organe de calibrage est mobile axialement à l'intérieur du corps tubulaire. Ainsi le déplacement de l'organe de calibrage permet de régler le débit du bec de remplissage tout en conservant les propriétés d'accélération du produit au voisinage de l'orifice inférieur du bec de remplissage.According to an advantageous version of the invention, the calibration member is movable axially inside the tubular body. Thus the displacement of the calibration member makes it possible to adjust the flow rate of the filling spout while retaining the properties of acceleration of the product in the vicinity of the lower orifice of the filling spout.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui suit de modes de réalisation particuliers non limitatifs de l'invention en liaison avec les figures ci-jointes parmi lesquelles :

  • la figure 1 est une vue en coupe axiale d'un premier mode de réalisation du bec de remplissage selon l'invention,
  • la figure 2 est une vue en coupe axiale d'un second mode de réalisation du bec de remplissage selon l'invention.
Other characteristics and advantages of the invention will appear on reading the following description of particular non-limiting embodiments of the invention in conjunction with the attached figures, among which:
  • FIG. 1 is a view in axial section of a first embodiment of the filling spout according to the invention,
  • Figure 2 is an axial sectional view of a second embodiment of the filling spout according to the invention.

Sur les deux figures, l'organe de calibrage est mobile axialement et a été représenté dans une position de fermeture du bec de remplissage sur la moitié gauche de la figure et dans une position d'ouverture du bec de remplissage sur la moitié droite de la figure.In the two figures, the calibrating member is axially movable and has been shown in a closed position of the filling spout on the left half of the figure and in an open position of the filling spout on the right half of the figure.

En référence à la figure 1, le bec de remplissage selon l'invention comporte un corps tubulaire 1 équipé à son extrémité supérieure d'un collet 2 destiné à le raccorder à un tube d'alimentation en produit à conditionner. La paroi interne du corps tubulaire comporte une première partie cylindrique 3 adjacente à l'extrémité supérieure du corps tubulaire suivie d'une série de parties coniques 4 qui convergent vers l'extrémité inférieure du bec de remplissage, puis une partie cylindrique 5 suivie d'une partie conique 6 dont l'extrémité inférieure coïncide avec l'orifice inférieur 7 du bec de remplissage. Au niveau de l'orifice inférieur 7, la paroi interne du bec de remplissage comporte un décrochement 8 suivi d'une partie conique divergente 9.Referring to Figure 1, the filling spout according to the invention comprises a tubular body 1 equipped at its upper end with a collar 2 intended to connect it to a tube for supplying the product to be packaged. The internal wall of the tubular body comprises a first cylindrical part 3 adjacent to the upper end of the tubular body followed by a series of conical parts 4 which converge towards the lower end of the filling spout, then a cylindrical part 5 followed by a conical part 6, the lower end of which coincides with the lower orifice 7 of the filling spout. At the level of the lower orifice 7, the internal wall of the filling spout has a recess 8 followed by a divergent conical part 9.

A l'intérieur du corps tubulaire 1, le bec de remplissage comporte un organe de calibrage comportant une partie inférieure conique 10 convergente vers le bas et s'étendant en regard de la partie conique 6 de la paroi interne du corps tubulaire 1. Dans le mode de réalisation particulier illustré, la partie conique 10 a une conicité égale à la partie conique 6 de sorte que les faces en regard de la partie conique 10 et de la partie conique 6 sont parallèles. Au-dessus de la partie conique 10, c'est-à-dire en amont de celle-ci par référence à un sens d'écoulement du produit dans le bec de remplissage, l'organe de calibrage comporte une partie conique 11 divergente vers le bas et dont l'extrémité supérieure est reliée par une tige de liaison 12 à un clapet de fermeture 13 comportant une partie de surface externe 14 ayant une conicité identique à l'une des parties coniques 4 de la paroi interne du corps tubulaire 1 de façon à assurer une fermeture étanche du bec de remplissage lorsque le clapet de fermeture 13 est appliqué sur la partie conique correspondante 4. La tige de liaison 12 comporte des ailettes de centrage 15 s'étendant radialement dans la partie cylindrique 5 de la paroi interne du corps tubulaire 1. Les ailettes de centrage 15 sont montées pour coulisser dans la partie cylindrique 5. A son extrémité supérieure, le clapet de fermeture 13 est relié à une tige de commande 16 associée à un mécanisme non représenté pour régler la position axiale de l'organe de calibrage dans le bec de remplissage.Inside the tubular body 1, the filling spout comprises a calibrating member comprising a conical lower part 10 converging downwards and extending opposite the conical part 6 of the internal wall of the tubular body 1. In the particular embodiment illustrated, the conical part 10 has a conicity equal to the conical part 6 so that the opposite faces of the conical part 10 and the conical part 6 are parallel. Above the conical part 10, that is to say upstream of the latter by reference to a direction of flow of the product in the filling spout, the calibrating member has a conical part 11 which diverges downwards and the upper end of which is connected by a connecting rod 12 to a closing valve 13 comprising an external surface part 14 having a conicity identical to one of the conical parts 4 of the inner wall of the tubular body 1 so as to ensure a tight closure of the filling spout when the closure valve 13 is applied to the corresponding conical part 4. The connecting rod 12 comprises centering fins 15 extending radially in the part cylindrical 5 of the inner wall of the tubular body 1. The centering fins 15 are mounted to slide in the cylindrical part 5. At its upper end, the closing valve 13 is connected to a control rod 16 associated with a mechanism not shown to adjust the axial position of the sizing member in the filling spout.

Ainsi qu'il a été indiqué ci-dessus, la moitié gauche de la figure 1 illustre le premier mode de réalisation de l'invention dans une position de fermeture. Le clapet de fermeture 13 est alors en appui sur le siège de clapet 4 tandis que la partie conique 10 est faiblement espacée de la partie conique 6 en regard. De préférence, l'espacement entre les parties coniques 6 et 10 est suffisamment faible pour éviter que le produit contenu dans le corps tubulaire 1 en dessous du clapet de fermeture 13 ne s'écoule lorsque le clapet de fermeture 13 est appliqué sur son siège. Dans cette position, l'extrémité inférieure de la partie conique 10 dépasse de l'orifice inférieur 7 et est protégée par la partie de paroi du corps tubulaire 1 correspondant à la partie conique divergente 9.As indicated above, the left half of Figure 1 illustrates the first embodiment of the invention in a closed position. The closing valve 13 is then supported on the valve seat 4 while the conical part 10 is slightly spaced from the opposite conical part 6. Preferably, the spacing between the conical parts 6 and 10 is sufficiently small to prevent the product contained in the tubular body 1 below the closure valve 13 from flowing when the closure valve 13 is applied to its seat. In this position, the lower end of the conical part 10 protrudes from the lower orifice 7 and is protected by the wall part of the tubular body 1 corresponding to the divergent conical part 9.

La moitié droite de la figure illustre le bec de remplissage avec l'organe de calibrage dans une position d'ouverture sensiblement maximale pour laquelle l'extrémité inférieure de la partie conique 10 coïncide avec l'orifice inférieur 7. Bien que les parties de surface coniques en regard 6 et 10 soient de même conicité et soient donc parallèles l'une à l'autre, la conicité de ces parties de surface assure une décroissance de la section de passage entre ces parties de surface, prise selon des plans perpendiculaires à l'axe longitudinal du corps tubulaire 1. Dans la position d'ouverture maximale illustrée sur la figure, l'extrémité supérieure de la partie conique 10 est à un niveau supérieur à l'extrémité supérieure de la partie conique 6 de sorte que la longueur L selon laquelle l'espace annulaire compris entre les parties de surface 6 et 10 est décroissant coïncide avec la hauteur de la partie conique 6.The right half of the figure illustrates the filling spout with the calibrating member in a substantially maximum open position for which the lower end of the conical part 10 coincides with the lower orifice 7. Although the surface parts conical opposite 6 and 10 are of the same conicity and are therefore parallel to each other, the conicity of these surface parts ensures a decrease in the passage section between these surface parts, taken along planes perpendicular to the longitudinal axis of the tubular body 1. In the position of maximum opening illustrated in the figure, the upper end of the conical part 10 is at a level higher than the upper end of the conical part 6 so that the length L according to which the annular space comprised between the surface parts 6 and 10 is decreasing coincides with the height of the conical part 6.

On remarquera que dans le cas où l'organe de calibrage est dans une position intermédiaire entre la position illustrée sur la moitié droite de la figure et la position illustrée sur la moitié gauche de la figure avec l'extrémité supérieure de la partie conique 10 en dessous de l'extrémité supérieure de la partie conique 6, l'espace annulaire entre l'organe de calibrage et la paroi interne du corps tubulaire 1 est alors décroissante depuis l'extrémité supérieure de la partie conique 11 jusqu'à l'orifice inférieur 7. On remarquera également que dans ce mode de réalisation la partie conique 10 de l'organe de calibrage peut avoir une conicité légèrement supérieure à la conicité de la partie de paroi 6 en regard du moment que la différence des conicités entre la partie de paroi 10 et la partie de paroi 6 est suffisante pour que la section de l'espace annulaire entre les parties de parois coniques 6 et 10 soit décroissante sur une longueur L au moins égale à huit fois la largeur l de l'espace annulaire prise selon une direction radiale au niveau de l'orifice inférieur 7. Cette valeur est satisfaisante pour la plupart des produits mais elle n'est pas absolument critique et peut être légèrement adaptée en fonction du produit à conditionner.It will be noted that in the case where the calibration member is in an intermediate position between the position illustrated on the right half of the figure and the position illustrated on the left half of the figure with the upper end of the conical part 10 in below the upper end of the conical part 6, the annular space between the calibration member and the internal wall of the tubular body 1 is then decreasing from the upper end of the conical part 11 to the lower orifice 7. It will also be noted that in this embodiment the conical part 10 of the calibrating member may have a taper slightly greater than the taper of the wall part 6 compared with the time that the difference in taper between the wall part 10 and the wall part 6 is sufficient for the section of the annular space between the conical wall parts 6 and 10 to decrease over a length L at least equal to hu it times the width l of the annular space taken in a radial direction at the level of the lower orifice 7. This value is satisfactory for most products but it is not absolutely critical and can be slightly adapted according to the product to condition.

Dans ces conditions on a constaté que le jet sortant de l'orifice inférieur 7 du bec de remplissage est particulièrement stable, ce qui se traduit par une surface externe très lisse du jet sortant du bec de remplissage.Under these conditions it has been found that the jet leaving the lower orifice 7 of the filling spout is particularly stable, which results in a surface very smooth external jet coming out of the filling spout.

La figure 2 illustre un second mode de réalisation de l'invention pour lequel les parties ayant une fonction identique à celle de la figure 1 ont été référencées avec les mêmes références numériques.Figure 2 illustrates a second embodiment of the invention for which the parts having a function identical to that of Figure 1 have been referenced with the same reference numerals.

Dans ce second mode de réalisation, le corps tubulaire 1 est prévu pour être monté directement dans un orifice d'une paroi inférieure d'une cuve d'alimentation et, à cet effet, le collet de montage 2 est disposé dans la partie inférieure du corps tubulaire 1 qui comporte cette fois des ouvertures d'alimentation 17 à travers lesquelles le produit à conditionner s'écoule radialement avant de s'écouler axialement dans l'espace annulaire compris entre la partie de surface conique 10 de l'organe de calibrage et la paroi interne en regard du corps tubulaire 1. La surface de guidage interne 5 du corps tubulaire 1 s'étend au-dessus des ouvertures d'alimentation 17 et l'organe de calibrage comporte une partie de liaison cylindrique 12 qui se raccorde directement à la partie conique inférieure 10.In this second embodiment, the tubular body 1 is designed to be mounted directly in an orifice in a lower wall of a supply tank and, for this purpose, the mounting collar 2 is arranged in the lower part of the tubular body 1 which this time has supply openings 17 through which the product to be packaged flows radially before flowing axially in the annular space comprised between the conical surface part 10 of the calibrating member and the internal wall opposite the tubular body 1. The internal guide surface 5 of the tubular body 1 extends above the feed openings 17 and the calibrating member comprises a cylindrical connecting part 12 which is connected directly to the lower conical part 10.

Dans ce mode de réalisation, la partie de surface conique 6 de la surface interne du corps tubulaire 1 est divisée en une partie de surface supérieure 6.1 ayant une conicité supérieure à la conicité de la partie de surface conique 10, et une partie inférieure 6.2 dont la conicité est égale à la conicité de la partie de surface conique 10 de l'organe de calibrage. Le bord inférieur de la partie conique 6.1 est légèrement espacé de l'orifice inférieur 7 de sorte que la partie conique 6.2 constitue un siège pour la partie conique 10 de l'organe de calibrage et, lorsque celui-ci est en position basse illustrée sur la partie gauche de la figure 2, la partie de surface conique 10 de l'organe de calibrage fait fonction de clapet de fermeture. La section de l'espace annulaire entre la partie de surface conique 10 de l'organe de calibrage et la partie de surface conique 6 est ainsi décroissante depuis les orifices d'alimentation 17 jusqu'à l'orifice inférieur 7 du bec de remplissage et l'on obtient donc comme précédemment une accélération du produit favorable à la stabilité du jet sortant du bec de remplissage.In this embodiment, the conical surface part 6 of the internal surface of the tubular body 1 is divided into an upper surface part 6.1 having a taper greater than the taper of the conical surface part 10, and a lower part 6.2 whose the taper is equal to the taper of the tapered surface portion 10 of the sizing member. The lower edge of the conical part 6.1 is slightly spaced from the lower orifice 7 so that the conical part 6.2 constitutes a seat for the conical part 10 of the calibration member and, when the latter is in the low position illustrated on the left part of FIG. 2, the conical surface part 10 of the calibration member acts as a closing valve. The section of the annular space between the conical surface part 10 of the calibration member and the conical surface part 6 is thus decreasing from the supply orifices 17 to the lower orifice 7 of the filling spout and an acceleration of the product is therefore obtained, as previously, favorable to the stability of the jet exiting the filling spout.

Dans ce mode de réalisation la portion inférieure 10.1 de la partie de calibrage conique 10 s'étendant au-delà de l'orifice inférieur 7 pour une position fermée du bec de remplissage a une conicité supérieure à une portion immédiatement en amont par référence à un sens d'écoulement de produit dans le bec de remplissage. On a observé que l'on minimisait ainsi le risque de formation d'une goutte lors de la fermeture du bec de remplissage. Il est souhaitable que la conicité de la portion inférieure de la partie de surface conique soit aussi forte que possible mais il faut veiller à ce que pour une position ouverte du bec de remplissage la section de l'espace annulaire compris entre les surfaces 6 et 10 reste décroissante. Ceci limite donc en pratique la conicité de la portion inférieure de la partie de calibrage conique 10.In this embodiment, the lower portion 10.1 of the conical calibration portion 10 extending beyond the lower orifice 7 for a closed position of the filling spout has a taper greater than a portion immediately upstream with reference to a direction of product flow in the filling spout. It has been observed that this minimizes the risk of a drop forming when the filling spout is closed. It is desirable that the taper of the lower portion of the conical surface portion is as strong as possible, but it must be ensured that for an open position of the filling spout the section of the annular space between the surfaces 6 and 10 remains decreasing. This therefore limits in practice the taper of the lower portion of the conical calibration part 10.

Bien entendu l'invention n'est pas limitée aux modes de réalisation décrits et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention. En particulier, dans les deux modes de réalisation illustrés, on peut utiliser des organes de centrage différents des ailettes 15, par exemple en associant l'organe de calibrage à un corps cylindrique coulissant dans le corps tubulaire 1. Dans le cas du second mode de réalisation il n'est même pas nécessaire que l'organe de guidage soit percé d'ouvertures puisque le produit à conditionner pénètre dans le corps tubulaire 1 en dessous de l'organe de guidage. De même, dans le second mode de réalisation, on peut prévoir une partie de surface conique 6 ayant une conicité unique sur toute sa hauteur, cette conicité étant alors égale à la conicité de la partie de surface conique 10 afin d'assurer une fermeture du bec de remplissage lorsque l'organe de calibrage est en position basse.Of course, the invention is not limited to the embodiments described and it is possible to make variant embodiments without departing from the scope of the invention. In particular, in the two illustrated embodiments, it is possible to use centering members different from the fins 15, for example by associating the calibration member with a cylindrical body sliding in the tubular body 1. In the case of the second embodiment, embodiment it is not even necessary for the guide member to be pierced with openings since the product to be packaged penetrates into the tubular body 1 below the guide member. Similarly, in the second embodiment, it is possible to provide a conical surface part 6 having a single conicity over its entire height, this conicity then being equal to the conicity of the conical surface part 10 in order to ensure closure of the filling spout when the calibrating member is in the low position.

Claims (6)

  1. A filler spout comprising a tubular body (1) having at least one conical inside wall portion (10) adjacent to a bottom orifice (7) of the filler spout and characterized in that it includes a calibration member having at least one conical calibration portion (10) disposed facing the conical inside wall portion (6) of the tubular body and co-operating therewith to define an annular gap of section that decreases down to the bottom orifice (7) of the filler spout, said annular gap extending over a length (L) that is equal to at least about eight times the width (l) of the annular gap measured in a radial direction level with the bottom orifice (7).
  2. A filler spout according to claim 1, characterized in that the calibration member is axially movable inside the tubular body (1).
  3. A filler spout according to claim 2, characterized in that the calibration member is associated with a closure valve member (13) disposed upstream from the calibration member relative to the direction in which substance flows through the filler spout.
  4. A filler spout according to claim 2, characterized in that at least in the vicinity of the bottom orifice (10), the conical inside wall portion (6.2) has a cone angle equal to that of the facing conical surface portion (10) of the calibration member.
  5. A filler spout according to claim 4, characterized in that upstream from the bottom orifice (7) the conical inside wall includes a portion (6.1) having a bottom edge that is spaced part from the bottom orifice (7) and a cone angle that is greater than that of the facing conical surface portion (10) of the calibration member.
  6. A filler spout according to claim 4 or claim 5, characterized in that a part (10.1) of the conical calibration portion (10) extends beyond the bottom orifice (7) when the filler spout is in a closed position and has a cone angle that is greater than that of a portion that is immediately upstream relative to the direction in which substance flows through the filler spout.
EP19930400416 1992-03-03 1993-02-18 Filling nozzle Expired - Lifetime EP0559513B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9202523 1992-03-03
FR9202523A FR2688196B1 (en) 1992-03-03 1992-03-03 FILLING SPOUT.

Publications (2)

Publication Number Publication Date
EP0559513A1 EP0559513A1 (en) 1993-09-08
EP0559513B1 true EP0559513B1 (en) 1996-03-27

Family

ID=9427293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930400416 Expired - Lifetime EP0559513B1 (en) 1992-03-03 1993-02-18 Filling nozzle

Country Status (6)

Country Link
EP (1) EP0559513B1 (en)
JP (1) JPH07112879B2 (en)
BR (1) BR9300335A (en)
DE (1) DE69301944T2 (en)
ES (1) ES2086198T3 (en)
FR (1) FR2688196B1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4411629A1 (en) * 1994-04-02 1995-11-02 Tetra Laval Holdings & Finance Valve for filling liquids in packaging
FR2736339B1 (en) * 1995-07-05 1997-08-29 Serac Group LAMINAR FLOW FILLING SPOUT
FR2736338B1 (en) * 1995-07-05 1997-08-29 Serac Group LAMINAR FLOW FILLING SPOUT
US5862996A (en) * 1997-01-10 1999-01-26 The Procter & Gamble Company Laminar flow nozzle
NL1008131C2 (en) * 1998-01-27 1999-07-28 Stork Bp & L B V Fill valve.
FR2801579B1 (en) * 1999-11-29 2002-01-18 Serac Group FILLING NOZZLE WITH ADJUSTABLE FLOW RATE BY A SINGLE ACTUATION DEVICE AND IMPLEMENTATION METHOD
JP4175106B2 (en) * 2002-12-25 2008-11-05 大日本印刷株式会社 Liquid filling valve
BG65401B1 (en) * 2004-10-27 2008-06-30 "Индекс - 6" Оод Metering valve
JP5659461B2 (en) * 2009-04-17 2015-01-28 東洋製罐株式会社 Filling valve
JP5573135B2 (en) * 2009-12-04 2014-08-20 東洋製罐株式会社 Filling valve
KR101204722B1 (en) * 2012-04-12 2012-11-26 주식회사 동학식품 Apparatus for manufacturing spherical frozen food using ultra low temperature refrigerant
ITUB20152677A1 (en) 2015-07-30 2017-01-30 Weightpack Srl TAP WITH VARIABLE FLOW

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH598103A5 (en) * 1975-10-22 1978-04-28 Buehler Ag Geb
US4653549A (en) * 1985-10-29 1987-03-31 C. M. Ambrose Company Conical fluid nozzle

Also Published As

Publication number Publication date
DE69301944T2 (en) 1996-11-21
DE69301944D1 (en) 1996-05-02
EP0559513A1 (en) 1993-09-08
BR9300335A (en) 1993-07-20
ES2086198T3 (en) 1996-06-16
FR2688196B1 (en) 1994-04-29
JPH068997A (en) 1994-01-18
FR2688196A1 (en) 1993-09-10
JPH07112879B2 (en) 1995-12-06

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