EP2496513B1 - Filling device having a special valve system - Google Patents

Filling device having a special valve system Download PDF

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Publication number
EP2496513B1
EP2496513B1 EP10771772.0A EP10771772A EP2496513B1 EP 2496513 B1 EP2496513 B1 EP 2496513B1 EP 10771772 A EP10771772 A EP 10771772A EP 2496513 B1 EP2496513 B1 EP 2496513B1
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EP
European Patent Office
Prior art keywords
valve
main
central
seat
main valve
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EP10771772.0A
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German (de)
French (fr)
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EP2496513A1 (en
Inventor
Mickaël HUITOREL
Arnaud Pasquet
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Sidel Participations SAS
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Sidel Participations SAS
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    • 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
    • B67C3/26—Filling-heads; Means for engaging filling-heads with bottle necks
    • B67C3/2608—Filling-heads; Means for engaging filling-heads with bottle necks comprising anti-dripping means
    • 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
    • B67C3/286—Flow-control devices, e.g. using valves related to flow rate control, i.e. controlling slow and fast filling phases

Definitions

  • the present invention relates to a filling device comprising a filling spout and dosing means, intended to equip a filling machine, for filling containers, such as bottles or jars, with all kinds of products, liquid to viscous , in particular a food product.
  • the invention relates in particular to a filling device with dosing means comprising a valve system for limiting the formation of drops after closure.
  • Such filling devices conventionally comprise a filling spout and dosing means for delivering a determined quantity of filling product into a container placed under the filling spout.
  • the filling spout comprises a generally tubular body having an internal passage of longitudinal axis, an open bottom axial end constituting the discharge orifice of the filling spout and a supply port for its supply of filling liquid.
  • the metering means comprise a shut-off valve system movably mounted in the filling spout, and a control system adapted to longitudinally move said valve system to close or open the discharge orifice.
  • the valve control system conventionally comprises a cylinder whose rod passes through an open upper end of the tubular body of the spout, the valve system comprises a valve connected to the free end of the cylinder rod.
  • the inner surface of the tubular body of the filling spout comprises a portion, generally frustoconical, defining a sealing seat.
  • the control system moves the valve between a closed state in which the latter comes by a conical closing portion of its outer surface against the sealing seat and an open state in which said closing portion is spaced from said seat.
  • valve geometry for retaining the drops by capillarity.
  • the valve in the closed state can define with the filling nozzle an annular space in which the filler is retained by capillarity.
  • the valve may also be provided on its lower end edge with ribs defining between them housing in which the product is retained by capillarity.
  • Another solution consists in providing a recess on the lower end edge of the valve in which suction means are arranged to suck and thus retain the filling liquid after closing the valve.
  • the object of the present invention is to provide a new solution to limit the risk of falling drops, especially in the case of filling nozzle whose discharge port has a large diameter.
  • the filling device according to the invention makes it possible to prevent drops from falling at the end of filling, while having a large discharge orifice diameter.
  • the filling device can be used for liquid products, such as water, semi-liquid, such as oil or liquid laundry for example.
  • the control system for the passage of an open state said large flow valve system in which the main valve and the central valve are in their open position, to the closed state of the valve system in which the main valve and the central valve are in their closed position, the control system is initially able to move the main valve to its closed position, in an open state called small flow of the valve system, so that the bulk of the filling product present in said grooves is sucked by the venturi effect by the flow of filler passing through the secondary orifice of said main valve, then to move the central valve to its closed position, the filler present on the lower edge of the central valve is moving by capillarity in said grooves.
  • the lower portion of the outer surface of the main valve comprises a final portion, substantially cylindrical, which extends from the main closure portion to said lower edge and on which open said grooves, the lower part of the inner surface of the tubular body comprising a final portion extending from said main seat to the main orifice, said final portions defining between them, in the closed position of the main valve, a first annular space.
  • the grooves thus open, in the closed position of the main valve, on this annular space which constitutes an additional retention zone for the filling product present on the lower edge of the central valve during the closure of the latter.
  • the lower portion of the inner surface of the main valve comprises a final portion extending from the secondary seat to said lower edge, and on which the grooves open, the lower portion of the outer surface of the central valve comprising a final portion extending from said secondary closure portion to the lower end edge, said final portions defining in the closed position of the central valve and the main valve, a second annular space.
  • the grooves thus open in the closed position of the valves on this second annular space.
  • This second annular space which connects the grooves, allows a good distribution of the filling product in all the grooves during the closing of the central valve, and constitutes an additional retention zone.
  • the lower edge of the central valve has a flat surface, substantially perpendicular to the longitudinal axis of the central valve, or a conical surface, whose cone angle is preferably between 179 ° and 120 °, for example of the order of 150 °, most of this conical surface being disposed within the main valve, recessed relative to the lower edge of the main valve.
  • the filling device comprises a filling spout 1 with a discharge orifice 11 and metering means for delivering a determined quantity of filling product into each container brought under the filling spout.
  • the filling spout 1 is formed of a generally tubular body, of longitudinal axis A, having an internal passage 10a, an open upper axial end 12 and an open lower axial end constituting the discharge orifice 11 of the filling spout. .
  • the tubular body is provided near its upper axial end of a collar 14 assembly.
  • the tubular body may be mounted directly on the rigid bottom wall of the tank of a filling machine, for example of rotary type, its open upper axial end then constituting the nozzle supply orifice, or be assembled to a another piece of the filling spout, by which said spout is assembled to a support structure of the filling machine, and connected to a tank on board the machine or a remote tank.
  • the inner surface 2 of the tubular body comprises, from the upper axial end 12 to the discharge orifice 11, a portion 21 upper substantially cylindrical, and a lower portion 22 comprising a frustoconical portion, which converges in the direction of the discharge port, and which defines a seat 221 shutter, said principal, extending through a substantially cylindrical final portion 222.
  • the metering means comprise a valve system 3, 6 disposed in the filling spout and a control system 9 for moving the valve system to close and open the discharge port.
  • the valve system is double valve type, and comprises a first valve 3, said principal, tubular and a second valve 6, said central, cylindrical, movably mounted in the main valve.
  • the main valve 3 is formed of a tubular body, of longitudinal axis B, open at its two axial ends, having an annular lower edge 32 delimiting a lower, so-called secondary orifice 31, of the main valve, and an edge 33 upper ring.
  • Its outer surface 4 comprises, from the upper edge 33 to the lower edge 32, a substantially cylindrical upper portion 41 and a lower portion 42 which comprises a frustoconical main closure portion 421 which converges towards the discharge orifice and whose conicity corresponds substantially to that of the main seat 221, and a substantially cylindrical portion 422 final.
  • Its inner surface comprises, from the upper edge 33 to the lower edge 32, a substantially cylindrical upper portion 51 and a lower portion 52 which comprises a frustoconical portion which converges towards the discharge orifice and which forms a seat 521 of shutter, said secondary for the central valve, and a portion 522 substantially cylindrical final.
  • the tubular body is formed of a tubular wall comprising a cylindrical section defining internally and externally said cylindrical upper portions 41, 51 of the inner and outer surfaces, a frustoconical section defining said portion 421 of main shutter and said secondary seat 521 and a cylindrical section defining said cylindrical final portions 422, 522.
  • the lower edge 32 is provided with radial grooves 34 opening on the final portions 422, 522 of the outer surface and the inner surface.
  • the central valve 6 is formed of a solid cylindrical body 60, of longitudinal axis C, having an upper end edge 61 and a lower end edge 62.
  • Its outer surface 7 comprises, from its upper end edge to its lower end edge, a generally cylindrical upper portion 71 and a lower portion 72 comprising a secondary frustoconical portion 721 which converges towards its edge. lower end and whose conicity substantially corresponds to that of the seat 521 secondary, and a portion 722 substantially cylindrical end.
  • the lower end edge 62 has a conical surface that converges downwardly.
  • control system 9 comprises a valve stem 91 at the lower end of which is assembled the central valve 6.
  • the main valve 3 is slidably mounted on the rod 91.
  • the main valve is assembled to a bushing 92 comprising a lower portion 921 on which is screwed the main valve, by its upper edge, and an upper portion 922.
  • the valve stem 91 slides in the internal passage of the lower part of the sleeve.
  • the valve stem 91 is equipped with a ring 93 comprising an annular base by which the ring is fixed on the rod, said base bearing on the lower side a tubular wall provided with radial centering fins 94 for centering the rod in the passage. internal spout and thus ensure a coaxial positioning of the main valve and the central valve in the filling spout.
  • a spring 95 is mounted on the valve stem between a fixed shoulder of the valve stem, here formed by the annular base of the ring 93, and an inner shoulder 923 of the socket.
  • This spring compression spring type, tends to move the sleeve 92 of the ring 93, and thus elastically solicits the bushing abutted by its lower edge 924 against the upper edge 61 of the central valve.
  • the main valve has radial openings 35 opening on the upper cylindrical portions 41, 51 of the outer and inner surfaces, below the sleeve, to ensure fluid communication between the internal passage 30a of the main valve and the internal passage 10a. filling spout.
  • valve stem is connected to a control member (not shown) of the control system, such as a cylinder for example pneumatic, the upper end of the cylinder rod being then assembled at the upper end of the rod. cylinder.
  • the main valve In a closed state of the valve system illustrated in figures 1 and 6 , the main valve is in a closed position in which the main closure portion 421 of its outer surface is against the main seat 221, the final portion 422 of its outer surface is spaced from the final portion 222 of the inner surface of the beak , and defines with the latter a first annular space 81 on which the grooves 34 open. Its lower edge 32 is disposed in the spout, slightly set back relative to the discharge orifice 11.
  • the central valve is in a closed position in which the secondary sealing portion 721 of its outer surface is against the secondary seat 521 of the inner surface of the main valve.
  • the final portion 722 of its outer surface is slightly spaced from the final portion 522 of the inner surface of the main valve and defines with the latter a second annular space 82 on which the grooves 34 open.
  • the lower end edge 62 is arranged substantially in the main valve, the top of its cone being substantially disposed at the lower edge 31 of the main valve. In this closed state of the valve system, the rod is in a low position.
  • the further upward movement of the valve stem in a raised position via the control member, drives the central valve upwards.
  • the central valve comes at its upper end edge 61 against the lower edge 924 of the sleeve, and drives the latter upwards.
  • the main valve assembled to the sleeve then deviates from the main seat to its open position illustrated in FIG. figure 5 .
  • the valve system is then in a state called high open flow, the filling product flowing through the orifice 11 of discharge spout.
  • the upper portion 922 of the sleeve 92 is disposed in the ring 93 and slides along the tubular wall of the latter.
  • the dosing means are for example of weight type, the control member being controlled by a weighing sensor which is placed at a container support device.
  • the control member is controlled by a sensor for detecting the filling level of the container or a flow sensor that is interposed between the container and the nozzle at the time of filling, or by a volumetric system.
  • valve system For filling a container, the valve system initially in its closed state of the figure 1 , is brought into its open state small flow of the figure 6 to start filling with a small flow, then in its open state large flow illustrated in the figure 5 .
  • the valve system can be brought directly from its closed state to its open, high-flow state to directly start filling with a large flow rate.
  • valve system At the end of filling, the valve system is brought into its open state small flow illustrated at the figure 6 .
  • the amount of filler present in the first annular space 81 and in the grooves 34 is for the most part sucked, by the venturi effect, by the flow of filler passing through the secondary orifice 31 of said main valve.
  • the valve system is maintained in this open, low flow state for a time sufficient to aspirate and evacuate the filler.
  • valve system is then brought into its closed state illustrated in FIGS. Figures 1 and 3 .
  • the small amount of filling material present on the lower edge 62 of the central valve migrates by capillarity into the grooves interconnected by the second annular space 82, then into the first annular space 81, thus ensuring that no drop falls.
  • the grooves 34 and the annular spaces 81, 82 are sized so as to define a retention volume sufficient to contain the amount of filler that can be retained under the central valve when it is closed.
  • the lower edge 32 comprises for example four first grooves 34a arranged at 90 ° to each other, and four second grooves 34b, of smaller dimensions than those of the first grooves disposed between them at 45 °.
  • the conicity of the lower end edge is defined to allow a capillary migration of the filling product remained under the central valve 6 to the grooves.
  • the filling device according to the invention can also be used for filling carried out only in small flow, with the valve system in the open state small flow.
  • control system comprises a solid control rod carrying at its lower end the central valve, as before, and a hollow control rod carrying at the lower end the main valve, in which the solid rod slides.
  • the sleeve carrying the centering fins is mounted on the hollow rod.
  • Each control rod is then assembled at the upper end to a control member for its movement between its open position and its closed position.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Lift Valve (AREA)

Description

La présente invention concerne un dispositif de remplissage comprenant un bec de remplissage et des moyens de dosage, destiné à équiper une machine de remplissage, pour le remplissage de récipients, tel que des bouteilles ou des pots, avec toute sorte de produits, liquides à visqueux, en particulier un produit alimentaire. L'invention concerne en particulier un dispositif de remplissage avec des moyens de dosage comprenant un système de clapet permettant de limiter la formation de gouttes après fermeture.The present invention relates to a filling device comprising a filling spout and dosing means, intended to equip a filling machine, for filling containers, such as bottles or jars, with all kinds of products, liquid to viscous , in particular a food product. The invention relates in particular to a filling device with dosing means comprising a valve system for limiting the formation of drops after closure.

De tels dispositifs de remplissage comprennent classiquement un bec de remplissage et des moyens de dosage pour délivrer une quantité déterminée de produit de remplissage dans un récipient placé sous le bec de remplissage.Such filling devices conventionally comprise a filling spout and dosing means for delivering a determined quantity of filling product into a container placed under the filling spout.

Le bec de remplissage comprend un corps globalement tubulaire présentant un passage interne d'axe longitudinal, une extrémité axiale inférieure ouverte constituant l'orifice de décharge du bec de remplissage et un orifice d'alimentation pour son alimentation en liquide de remplissage. Les moyens de dosage comprennent un système de clapet d'obturation monté mobile dans le bec de remplissage, et un système de commande apte à déplacer longitudinalement ledit système de clapet pour fermer ou ouvrir l'orifice de décharge. Le système de commande de clapet comprend classiquement un vérin dont la tige passe par une extrémité supérieure ouverte du corps tubulaire du bec, le système de clapet comprend un clapet relié à l'extrémité libre de la tige de vérin. La surface interne du corps tubulaire du bec de remplissage comprend une portion, généralement tronconique, définissant un siège d'obturation. Le système de commande déplace le clapet entre un état fermé dans lequel ce dernier vient par une portion d'obturation conique de sa surface extérieure contre le siège d'obturation et un état ouvert dans lequel ladite portion d'obturation est écartée dudit siège.The filling spout comprises a generally tubular body having an internal passage of longitudinal axis, an open bottom axial end constituting the discharge orifice of the filling spout and a supply port for its supply of filling liquid. The metering means comprise a shut-off valve system movably mounted in the filling spout, and a control system adapted to longitudinally move said valve system to close or open the discharge orifice. The valve control system conventionally comprises a cylinder whose rod passes through an open upper end of the tubular body of the spout, the valve system comprises a valve connected to the free end of the cylinder rod. The inner surface of the tubular body of the filling spout comprises a portion, generally frustoconical, defining a sealing seat. The control system moves the valve between a closed state in which the latter comes by a conical closing portion of its outer surface against the sealing seat and an open state in which said closing portion is spaced from said seat.

Ces dispositifs de remplissage doivent éviter autant que possible que des gouttes ne se forment au niveau du bord inférieur du clapet après la fermeture de ce dernier, et tombent du bec de remplissage sur les récipients à remplir et/ou sur la machine. Lorsque le clapet se ferme, une certaine quantité de produit de remplissage peut rester sous le clapet, sur son bord inférieur. Plus le diamètre de clapet augmente, plus la quantité de produit présente sous le clapet à la fermeture augmente, et avec elle les risques de formation et chute de gouttes. Sur une machine de remplissage de type rotative, la force centrifuge accentue ces risques.These filling devices must avoid as much as possible that drops are formed at the lower edge of the valve after closing of the latter, and fall from the filling spout to the containers to be filled and / or on the machine. When the flap closes, a some amount of filler may remain under the valve at its bottom edge. As the diameter of the valve increases, the amount of product present under the valve closes increases, and with it the risk of formation and drop drops. In a rotary type filling machine, the centrifugal force accentuates these risks.

Pour éviter que des gouttes ne tombent à l'issue du remplissage, après la fermeture du clapet, il a été proposé de prévoir des grilles, en aval du clapet, au niveau de l'orifice de décharge, pour retenir par capillarité les gouttes de produit de remplissage. Cette solution ne peut être utilisée pour certains produits de remplissage, notamment les produits visqueux ou ceux comprenant des particules et/ou morceaux.To prevent drops from falling after the filling, after closure of the valve, it has been proposed to provide grids, downstream of the valve, at the discharge port, to retain by capillary drops of filling product. This solution can not be used for certain fillers, especially viscous products or those containing particles and / or pieces.

Une autre solution consiste à prévoir une géométrie de clapet permettant une retenue des gouttes par capillarité. Par exemple, tel que décrit dans le document brevet FR 2 861 716 , le clapet à l'état fermé peut définir avec le bec de remplissage un espace annulaire dans lequel le produit de remplissage est retenu par capillarité. Tel que décrit dans le document brevet JP 2005-343516 , le clapet peut également être muni sur son bord d'extrémité inférieur de nervures définissant entre elles des logements dans lesquels le produit est retenu par capillarité.Another solution is to provide a valve geometry for retaining the drops by capillarity. For example, as described in the patent document FR 2 861 716 , the valve in the closed state can define with the filling nozzle an annular space in which the filler is retained by capillarity. As described in the patent document JP 2005-343516 , the valve may also be provided on its lower end edge with ribs defining between them housing in which the product is retained by capillarity.

Une autre solution, décrite par exemple dans le document brevet FR 2 791 033 , consiste à prévoir un renfoncement sur le bord d'extrémité inférieur du clapet dans lequel des moyens d'aspiration sont agencés pour aspirer et ainsi retenir le liquide de remplissage après fermeture du clapet.Another solution, described for example in the patent document FR 2 791 033 , consists in providing a recess on the lower end edge of the valve in which suction means are arranged to suck and thus retain the filling liquid after closing the valve.

Le document brevet DE 22 46 176 A1 divulgue un dispositif selon le préambule de la revendication 1.The patent document DE 22 46 176 A1 discloses a device according to the preamble of claim 1.

Le but de la présente invention est de proposer une nouvelle solution pour limiter les risques de chutes de gouttes, notamment dans le cas de bec de remplissage dont l'orifice de décharge présente un diamètre important.The object of the present invention is to provide a new solution to limit the risk of falling drops, especially in the case of filling nozzle whose discharge port has a large diameter.

A cet effet, la présente invention propose un dispositif de remplissage, destiné à être utilisé dans des machines de remplissage pour le remplissage de récipients avec un produit de remplissage, comportant

  • un bec de remplissage comprenant un corps globalement tubulaire présentant un passage interne d'axe longitudinal et une extrémité axiale inférieure ouverte constituant l'orifice de décharge du bec de remplissage et un orifice d'alimentation pour son alimentation en liquide de remplissage, la surface interne du corps tubulaire comprenant une partie inférieure s'étendant jusqu'à l'orifice de décharge comportant une portion, de préférence tronconique, définissant un siège d'obturation principal,
  • des moyens de dosage comprenant un système de clapet monté mobile dans le bec de remplissage, et un système de commande apte à déplacer longitudinalement ledit système de clapet entre un état fermé dans lequel le système de clapet vient par une portion d'obturation principale, de préférence tronconique, de sa surface extérieure contre le siège principal pour fermer l'orifice de décharge, et au moins un état ouvert dans lequel ladite portion d'obturation principale est écartée dudit siège principal pour ouvrir l'orifice de décharge,
ledit système de clapet comprenant
  • un premier clapet, dit principal, tubulaire comprenant un bord inférieur annulaire délimitant un orifice inférieur, dit secondaire, sa surface externe comprenant une partie inférieure qui s'étend jusqu'audit bord inférieur et qui comporte ladite portion d'obturation principale, sa surface interne comprenant une partie inférieure s'étendant jusqu'audit bord inférieur comprenant une portion, de préférence tronconique, formant un siège d'obturation dit secondaire, et
  • un second clapet, dit central, cylindrique monté mobile dans le clapet principal, et comprenant un bord d'extrémité inférieure, sa surface externe comprenant une partie inférieure qui s'étend jusqu'audit bord d'extrémité inférieur et qui comporte une portion d'obturation, dite secondaire, de préférence tronconique,
  • ledit système de commande étant apte
    • à déplacer le clapet principal entre une position fermée, dans laquelle sa portion d'obturation principale est contre le siège principal, et au moins une position ouverte dans laquelle sa portion d'obturation principale est écartée du siège principal,
    • et à déplacer le clapet central entre une position fermée dans laquelle sa portion d'obturation secondaire est contre le siège secondaire et au moins une position ouverte dans laquelle sa portion d'obturation secondaire est écartée du siège secondaire,
ledit clapet principal comprenant au moins une ouverture garantissant une communication fluidique entre son passage interne et le passage interne du bec, caractérisé en ce que
ledit bord inférieur du clapet principal est muni de rainures, de préférence radiales, débouchant sur la surface interne dudit clapet principal, ainsi que, de préférence, sur la surface externe dudit clapet principal, de sorte que, lorsque le clapet central est déplacé vers sa position fermée, le produit de remplissage présent sur le bord inférieur du clapet central se déplace par capillarité dans lesdites rainures du clapet principal en position fermée.For this purpose, the present invention proposes a filling device, intended for use in filling machines for filling containers with a filling product, comprising
  • a filling spout comprising a generally tubular body having an internal passage of longitudinal axis and an open bottom axial end constituting the discharge orifice of the filling spout and a supply opening for its supply of filling liquid, the inner surface of the tubular body comprising a lower portion extending to the discharge port having a portion, preferably frustoconical, defining a main filling seat,
  • dosing means comprising a valve system movably mounted in the filling spout, and a control system adapted to move said valve system longitudinally between a closed state in which the flapper system comes through a main closure portion, preferably frustoconical, of its outer surface against the main seat to close the discharge port, and at least one open state in which said main closure portion is spaced from said main seat to open the discharge port,
said valve system comprising
  • a first valve, said principal, tubular comprising an annular lower edge delimiting a lower, said secondary orifice, its external surface comprising a lower part which extends up to said lower edge and which comprises said main closure portion, its inner surface comprising a lower portion extending to said lower edge comprising a portion, preferably frustoconical, forming a so-called secondary closure seat, and
  • a second valve, said central, cylindrical movably mounted in the main valve, and comprising a lower end edge, its outer surface comprising a lower portion which extends to said lower end edge and which comprises a portion of closure, said secondary, preferably frustoconical,
  • said control system being suitable
    • moving the main valve between a closed position, in which its main sealing portion is against the main seat, and at least one open position in which its main closure portion is spaced from the main seat,
    • and moving the central valve between a closed position in which its secondary sealing portion is against the secondary seat and at least one open position in which its secondary closing portion is spaced from the secondary seat,
said main valve comprising at least one opening ensuring fluid communication between its internal passage and the internal passage of the nozzle, characterized in that
said lower edge of the main valve is provided with grooves, preferably radial, opening on the inner surface of said main valve, and preferably on the outer surface of said main valve, so that when the central valve is moved to its closed position, the filling product present on the lower edge of the central valve moves by capillarity in said grooves of the main valve in the closed position.

Le dispositif de remplissage selon l'invention permet d'éviter que des gouttes ne tombent en fin de remplissage, tout en ayant un diamètre d'orifice de décharge important. Le dispositif de remplissage peut être utilisé pour des produits liquides, tels que de l'eau, à semi-liquides, tels que de l'huile ou de la lessive liquide par exemple.The filling device according to the invention makes it possible to prevent drops from falling at the end of filling, while having a large discharge orifice diameter. The filling device can be used for liquid products, such as water, semi-liquid, such as oil or liquid laundry for example.

Selon une particularité, pour le passage d'un état ouvert dit grand débit du système de clapet dans lequel le clapet principal et le clapet central sont dans leur position ouverte, vers l'état fermé du système de clapet dans lequel le clapet principal et le clapet central sont dans leur position fermée, le système de commande est apte dans un premier temps à déplacer le clapet principal vers sa position fermée, dans un état ouvert dit petit débit du système de clapet, de sorte que la majeure partie du produit de remplissage présent dans lesdites rainures soit aspirée par effet venturi par le flux de produit de remplissage passant par l'orifice secondaire dudit clapet principal, puis à déplacer le clapet central vers sa position fermée, le produit de remplissage présent sur le bord inférieur du clapet central se déplaçant par capillarité dans lesdites rainures.According to one feature, for the passage of an open state said large flow valve system in which the main valve and the central valve are in their open position, to the closed state of the valve system in which the main valve and the central valve are in their closed position, the control system is initially able to move the main valve to its closed position, in an open state called small flow of the valve system, so that the bulk of the filling product present in said grooves is sucked by the venturi effect by the flow of filler passing through the secondary orifice of said main valve, then to move the central valve to its closed position, the filler present on the lower edge of the central valve is moving by capillarity in said grooves.

Selon une particularité, la partie inférieure de la surface externe du clapet principal comprend une portion finale, sensiblement cylindrique, qui s'étend de la portion d'obturation principale jusqu'audit bord inférieur et sur laquelle débouchent lesdites rainures, la partie inférieure de la surface interne du corps tubulaire comprenant une portion finale qui s'étend dudit siège principal jusqu'à l'orifice principal, lesdites portions finales définissant entre elles, dans la position fermée du clapet principal, un premier espace annulaire. Les rainures débouchent ainsi, dans la position fermée du clapet principal, sur cet espace annulaire qui constitue une zone de rétention supplémentaire pour le produit de remplissage présent sur le bord inférieur du clapet central lors de la fermeture de ce dernier.According to a feature, the lower portion of the outer surface of the main valve comprises a final portion, substantially cylindrical, which extends from the main closure portion to said lower edge and on which open said grooves, the lower part of the inner surface of the tubular body comprising a final portion extending from said main seat to the main orifice, said final portions defining between them, in the closed position of the main valve, a first annular space. The grooves thus open, in the closed position of the main valve, on this annular space which constitutes an additional retention zone for the filling product present on the lower edge of the central valve during the closure of the latter.

Selon une particularité, la partie inférieure de la surface interne du clapet principal comprend une portion finale qui s'étend du siège secondaire jusqu'audit bord inférieur, et sur laquelle débouchent les rainures, la partie inférieure de la surface extérieure du clapet central comprenant une portion finale qui s'étend de ladite portion d'obturation secondaire jusqu'au bord d'extrémité inférieure, lesdites portions finales définissant entre elles, dans la position fermée du clapet central et du clapet principal, un second espace annulaire. Les rainures débouchent ainsi dans la position fermée des clapets sur ce second espace annulaire. Ce second espace annulaire qui relie les rainures, permet une bonne répartition du produit de remplissage dans l'ensemble des rainures lors de la fermeture du clapet central, et constitue une zone de rétention supplémentaire.According to a feature, the lower portion of the inner surface of the main valve comprises a final portion extending from the secondary seat to said lower edge, and on which the grooves open, the lower portion of the outer surface of the central valve comprising a final portion extending from said secondary closure portion to the lower end edge, said final portions defining in the closed position of the central valve and the main valve, a second annular space. The grooves thus open in the closed position of the valves on this second annular space. This second annular space which connects the grooves, allows a good distribution of the filling product in all the grooves during the closing of the central valve, and constitutes an additional retention zone.

Selon une particularité, le bord inférieur du clapet central présente une surface plane, sensiblement perpendiculaire à l'axe longitudinal du clapet central, ou une surface conique, dont l'angle de cône est de préférence compris entre 179° et 120°, par exemple de l'ordre de 150°, la majeure partie de cette surface conique étant disposée à l'intérieur du clapet principal, en retrait par rapport au bord inférieur du clapet principal.According to a feature, the lower edge of the central valve has a flat surface, substantially perpendicular to the longitudinal axis of the central valve, or a conical surface, whose cone angle is preferably between 179 ° and 120 °, for example of the order of 150 °, most of this conical surface being disposed within the main valve, recessed relative to the lower edge of the main valve.

Selon un mode de réalisation, le système de commande comprend

  • une tige de clapet s'étendant sensiblement axialement dans le corps tubulaire, le clapet central étant monté à l'extrémité inférieure de la tige de clapet, le clapet principal étant assemblé à une douille montée coulissante sur la tige de clapet entre ledit clapet central et un épaulement de ladite tige,
  • un ressort étant monté entre la douille et ledit épaulement pour solliciter élastiquement ladite douille en direction du clapet central, et
  • un organe de commande, tel qu'un vérin, apte à déplacer la tige de clapet entre une position basse dans laquelle le clapet central est dans sa position fermée et le clapet principal est sollicité élastiquement par le ressort dans sa position fermée, une position intermédiaire dans laquelle le clapet central est dans une position ouverte et le clapet principal est sollicité élastiquement par le ressort dans sa position fermée, et une position haute dans laquelle le clapet central est dans une position ouverte en butée contre la douille et le clapet principal en position ouverte.
According to one embodiment, the control system comprises
  • a valve stem extending substantially axially in the tubular body, the central valve being mounted at the lower end of the valve stem, the main valve being assembled to a sleeve slidably mounted on the valve stem between said central valve and a shoulder of said rod,
  • a spring being mounted between the sleeve and said shoulder for resiliently urging said sleeve towards the central valve, and
  • a control member, such as a jack, adapted to move the valve stem between a low position in which the central valve is in its closed position and the main valve is biased elastically by the spring in its closed position, an intermediate position in which the central valve is in an open position and the main valve is elastically biased by the spring in its closed position, and a high position in which the central valve is in a position open in abutment against the socket and the main valve in the open position.

L'invention sera mieux comprise, et d'autres buts, détails, caractéristiques et avantages apparaîtront plus clairement au cours de la description explicative détaillée qui va suivre d'un mode de réalisation particulier actuellement préféré de l'invention, en référence aux dessins schématiques annexés, sur lesquels :

  • la figure 1 est une vue en coupe longitudinale d'un dispositif de remplissage selon l'invention, le clapet principal et le clapet central dans leur position fermée ;
  • la figure 2 est une vue agrandie du clapet principal de la figure 1;
  • la figure 3 est une vue de dessous du clapet principal ;
  • la figure 4 est une vue partielle agrandie de la figure 1 ;
  • la figure 5 est une vue analogue à celle de la figure 1, le clapet principal et le clapet central dans leur position ouverte, et,
  • la figure 6 est une vue analogue à celles des figures 1 et 5, le clapet étant en position fermée et le clapet central en position ouverte.
The invention will be better understood, and other objects, details, features and advantages will become more clearly apparent from the following detailed explanatory description of a particular presently preferred embodiment of the invention, with reference to the schematic drawings. annexed, in which:
  • the figure 1 is a longitudinal sectional view of a filling device according to the invention, the main valve and the central valve in their closed position;
  • the figure 2 is an enlarged view of the main flap of the figure 1 ;
  • the figure 3 is a bottom view of the main valve;
  • the figure 4 is an enlarged partial view of the figure 1 ;
  • the figure 5 is a view similar to that of the figure 1 , the main flap and the central flap in their open position, and,
  • the figure 6 is a view similar to those of figures 1 and 5 , the valve being in the closed position and the central valve in the open position.

En référence aux figures 1 et 3, le dispositif de remplissage comporte un bec 1 de remplissage avec un orifice 11 de décharge et des moyens de dosage pour délivrer une quantité déterminée de produit de remplissage dans chaque récipient amené sous le bec de remplissage.With reference to Figures 1 and 3 , the filling device comprises a filling spout 1 with a discharge orifice 11 and metering means for delivering a determined quantity of filling product into each container brought under the filling spout.

Le bec 1 de remplissage est formé d'un corps 10 globalement tubulaire, d'axe A longitudinal, présentant un passage 10a interne, une extrémité 12 axiale supérieure ouverte et une extrémité axiale inférieure ouverte constituant l'orifice 11 de décharge du bec de remplissage. Le corps tubulaire est muni à proximité de son extrémité axiale supérieure d'une collerette 14 d'assemblage. Le corps tubulaire pourra être monté directement sur la paroi rigide de fond de la cuve d'une machine de remplissage, par exemple de type rotative, son extrémité axiale supérieure ouverte constituant alors l'orifice d'alimentation du bec, ou être assemblé à une autre pièce du bec de remplissage, par laquelle ledit bec sera assemblé à une structure support de la machine de remplissage, et connecté à une cuve embarquée sur la machine ou une cuve déportée.The filling spout 1 is formed of a generally tubular body, of longitudinal axis A, having an internal passage 10a, an open upper axial end 12 and an open lower axial end constituting the discharge orifice 11 of the filling spout. . The tubular body is provided near its upper axial end of a collar 14 assembly. The tubular body may be mounted directly on the rigid bottom wall of the tank of a filling machine, for example of rotary type, its open upper axial end then constituting the nozzle supply orifice, or be assembled to a another piece of the filling spout, by which said spout is assembled to a support structure of the filling machine, and connected to a tank on board the machine or a remote tank.

La surface 2 interne du corps tubulaire comprend, de l'extrémité 12 axiale supérieure à l'orifice 11 de décharge, une partie 21 supérieure sensiblement cylindrique, et une partie 22 inférieure comprenant une portion tronconique, qui converge en direction de l'orifice de décharge, et qui définit un siège 221 d'obturation, dit principal, se prolongeant par une portion 222 finale sensiblement cylindrique.The inner surface 2 of the tubular body comprises, from the upper axial end 12 to the discharge orifice 11, a portion 21 upper substantially cylindrical, and a lower portion 22 comprising a frustoconical portion, which converges in the direction of the discharge port, and which defines a seat 221 shutter, said principal, extending through a substantially cylindrical final portion 222.

Les moyens de dosage comprennent un système 3, 6 de clapet disposé dans le bec de remplissage et un système 9 de commande permettant de déplacer le système de clapet pour fermer et ouvrir l'orifice de décharge.The metering means comprise a valve system 3, 6 disposed in the filling spout and a control system 9 for moving the valve system to close and open the discharge port.

Le système de clapet est de type double clapet, et comprend un premier clapet 3, dit principal, tubulaire et un second clapet 6, dit central, cylindrique, monté mobile dans le clapet principal.The valve system is double valve type, and comprises a first valve 3, said principal, tubular and a second valve 6, said central, cylindrical, movably mounted in the main valve.

En référence en particulier aux figures 2 et 3, le clapet 3 principal est formé d'un corps 30 tubulaire, d'axe B longitudinal, ouvert à ses deux extrémités axiales, présentant un bord 32 inférieur annulaire délimitant un orifice 31 inférieur, dit secondaire, du clapet principal, et un bord 33 supérieur annulaire.With particular reference to Figures 2 and 3 , the main valve 3 is formed of a tubular body, of longitudinal axis B, open at its two axial ends, having an annular lower edge 32 delimiting a lower, so-called secondary orifice 31, of the main valve, and an edge 33 upper ring.

Sa surface 4 externe comprend, du bord 33 supérieur au bord 32 inférieur, une partie 41 supérieure sensiblement cylindrique et une partie 42 inférieure qui comporte une portion 421 d'obturation principale, tronconique, qui converge vers l'orifice de décharge et dont la conicité correspond sensiblement à celle du siège 221 principal, et une portion 422 finale sensiblement cylindrique.Its outer surface 4 comprises, from the upper edge 33 to the lower edge 32, a substantially cylindrical upper portion 41 and a lower portion 42 which comprises a frustoconical main closure portion 421 which converges towards the discharge orifice and whose conicity corresponds substantially to that of the main seat 221, and a substantially cylindrical portion 422 final.

Sa surface 5 interne comprend, du bord 33 supérieur au bord 32 inférieur, une partie 51 supérieure, sensiblement cylindrique, et une partie 52 inférieure qui comporte une portion tronconique, qui converge vers l'orifice de décharge et qui forme un siège 521 d'obturation, dit secondaire pour le clapet central, et une portion 522 finale sensiblement cylindrique.Its inner surface comprises, from the upper edge 33 to the lower edge 32, a substantially cylindrical upper portion 51 and a lower portion 52 which comprises a frustoconical portion which converges towards the discharge orifice and which forms a seat 521 of shutter, said secondary for the central valve, and a portion 522 substantially cylindrical final.

Dans le présent mode de réalisation, le corps tubulaire est formé d'une paroi tubulaire comprenant un tronçon cylindrique définissant intérieurement et extérieurement lesdites parties 41, 51 supérieures cylindriques des surfaces interne et externe, un tronçon tronconique définissant ladite portion 421 d'obturation principale et ledit siège 521 secondaire et un tronçon cylindrique définissant lesdites portions 422, 522 finales cylindriques.In the present embodiment, the tubular body is formed of a tubular wall comprising a cylindrical section defining internally and externally said cylindrical upper portions 41, 51 of the inner and outer surfaces, a frustoconical section defining said portion 421 of main shutter and said secondary seat 521 and a cylindrical section defining said cylindrical final portions 422, 522.

Le bord 32 inférieur est muni de rainures 34 radiales débouchant sur les portions 422, 522 finales de la surface externe et la surface interne.The lower edge 32 is provided with radial grooves 34 opening on the final portions 422, 522 of the outer surface and the inner surface.

En référence à la figure 4, le clapet 6 central est formé d'un corps 60 cylindrique plein, d'axe C longitudinal, présentant un bord 61 d'extrémité supérieure et un bord 62 d'extrémité inférieure.With reference to the figure 4 , the central valve 6 is formed of a solid cylindrical body 60, of longitudinal axis C, having an upper end edge 61 and a lower end edge 62.

Sa surface 7 extérieure comprend, de son bord d'extrémité supérieure à son bord d'extrémité inférieure, une partie 71 supérieure globalement cylindrique et une partie 72 inférieure comportant une portion 721 d'obturation secondaire, tronconique, qui converge vers son bord d'extrémité inférieure et dont la conicité correspond sensiblement à celle du siège 521 secondaire, et une portion 722 finale sensiblement cylindrique.Its outer surface 7 comprises, from its upper end edge to its lower end edge, a generally cylindrical upper portion 71 and a lower portion 72 comprising a secondary frustoconical portion 721 which converges towards its edge. lower end and whose conicity substantially corresponds to that of the seat 521 secondary, and a portion 722 substantially cylindrical end.

Le bord 62 d'extrémité inférieure présente une surface conique qui converge vers le bas.The lower end edge 62 has a conical surface that converges downwardly.

Suivant les figures 1 5 et 6, le système 9 de commande comprend une tige 91 de clapet à l'extrémité inférieure de laquelle est assemblé le clapet 6 central. Le clapet 3 principal est monté coulissant sur la tige 91. Pour ce faire, le clapet principal est assemblé à une douille 92 comprenant une partie 921 inférieure sur laquelle est vissé le clapet principal, par son bord supérieur, et une partie 922 supérieure. La tige 91 de clapet coulisse dans le passage interne de la partie inférieure de la douille.Following the figures 1 5 and 6 the control system 9 comprises a valve stem 91 at the lower end of which is assembled the central valve 6. The main valve 3 is slidably mounted on the rod 91. To do this, the main valve is assembled to a bushing 92 comprising a lower portion 921 on which is screwed the main valve, by its upper edge, and an upper portion 922. The valve stem 91 slides in the internal passage of the lower part of the sleeve.

La tige 91 de clapet est équipée d'une bague 93 comprenant une base annulaire par laquelle la bague est fixée sur la tige, ladite base portant du côté inférieur une paroi tubulaire munie d'ailettes 94 de centrage radiales pour centrer la tige dans le passage interne du bec et ainsi garantir un positionnement coaxial du clapet principal et du clapet central dans le bec de remplissage.The valve stem 91 is equipped with a ring 93 comprising an annular base by which the ring is fixed on the rod, said base bearing on the lower side a tubular wall provided with radial centering fins 94 for centering the rod in the passage. internal spout and thus ensure a coaxial positioning of the main valve and the central valve in the filling spout.

Un ressort 95 est monté sur la tige de clapet entre un épaulement fixe de la tige de clapet, formé ici par la base annulaire de la bague 93, et un épaulement 923 interne de la douille. Ce ressort, de type ressort de compression, tend à écarter la douille 92 de la bague 93, et sollicite donc élastiquement la douille en butée par son bord 924 inférieur contre le bord 61 supérieur du clapet central.A spring 95 is mounted on the valve stem between a fixed shoulder of the valve stem, here formed by the annular base of the ring 93, and an inner shoulder 923 of the socket. This spring, compression spring type, tends to move the sleeve 92 of the ring 93, and thus elastically solicits the bushing abutted by its lower edge 924 against the upper edge 61 of the central valve.

Le clapet principal présente des ouvertures 35 radiales, débouchant sur les parties 41, 51 supérieures cylindriques des surfaces externe et interne, en dessous de la douille, afin d'assurer la communication fluidique entre le passage 30a interne du clapet principal et le passage 10a interne du bec de remplissage.The main valve has radial openings 35 opening on the upper cylindrical portions 41, 51 of the outer and inner surfaces, below the sleeve, to ensure fluid communication between the internal passage 30a of the main valve and the internal passage 10a. filling spout.

La tige de clapet est reliée à un organe de commande (non représenté) du système de commande, tel qu'un vérin par exemple pneumatique, l'extrémité supérieure de la tige de vérin étant alors assemblée à l'extrémité supérieure de la tige de vérin.The valve stem is connected to a control member (not shown) of the control system, such as a cylinder for example pneumatic, the upper end of the cylinder rod being then assembled at the upper end of the rod. cylinder.

Dans un état fermé du système de clapet illustré aux figures 1 et 6, le clapet principal est dans une position fermée dans laquelle la portion 421 d'obturation principal de sa surface externe est contre le siège 221 principal, la portion 422 finale de sa surface externe est écartée de la portion 222 finale de la surface interne du bec, et définit avec cette dernière un premier espace 81 annulaire sur lequel débouche les rainures 34. Son bord 32 inférieur est disposé dans le bec, légèrement en retrait par rapport à l'orifice 11 de décharge.In a closed state of the valve system illustrated in figures 1 and 6 , the main valve is in a closed position in which the main closure portion 421 of its outer surface is against the main seat 221, the final portion 422 of its outer surface is spaced from the final portion 222 of the inner surface of the beak , and defines with the latter a first annular space 81 on which the grooves 34 open. Its lower edge 32 is disposed in the spout, slightly set back relative to the discharge orifice 11.

Le clapet central est dans une position fermée dans laquelle la portion 721 d'obturation secondaire de sa surface externe est contre le siège 521 secondaire de la surface interne du clapet principal. La portion 722 finale de sa surface externe est légèrement écartée de la portion 522 finale de la surface interne du clapet principal et définit avec cette dernière un second espace 82 annulaire sur lequel débouchent les rainures 34. Le bord 62 d'extrémité inférieur est disposé sensiblement dans le clapet principal, le sommet de son cône étant sensiblement disposé au niveau du bord 31 inférieur du clapet principal. Dans cet état fermé du système de clapet, la tige est dans une position basse.The central valve is in a closed position in which the secondary sealing portion 721 of its outer surface is against the secondary seat 521 of the inner surface of the main valve. The final portion 722 of its outer surface is slightly spaced from the final portion 522 of the inner surface of the main valve and defines with the latter a second annular space 82 on which the grooves 34 open. The lower end edge 62 is arranged substantially in the main valve, the top of its cone being substantially disposed at the lower edge 31 of the main valve. In this closed state of the valve system, the rod is in a low position.

Le déplacement vers le haut de la tige dans une position intermédiaire, via l'organe de commande, a pour effet d'écarter le clapet central du siège secondaire, dans une position ouverte illustrée à la figure 6, le clapet principal étant maintenu en position fermée par le ressort 95. Dans cet état intermédiaire, dit ouvert petit débit, du système de clapet, le dispositif de remplissage permet le remplissage de récipient avec un petit débit, le produit de remplissage amené dans le bec passe par les ouvertures 35 et s'écoule par l'orifice 31 secondaire du clapet principal.The upward movement of the rod in an intermediate position, via the control member, has the effect of moving the central valve of the secondary seat, in an open position illustrated in FIG. figure 6 , the main valve being held in the closed position by the spring 95. In this intermediate state, said open small flow, of the valve system, the filling device allows the filling of the container with a small flow, the filling product brought into the nozzle passes through the openings 35 and flows through the secondary orifice 31 of the main valve.

Le déplacement supplémentaire vers le haut de la tige de clapet dans une position haute, via l'organe de commande, entraîne le clapet central vers le haut. Lors de ce déplacement, le clapet central vient par son bord 61 d'extrémité supérieure contre le bord 924 inférieur de la douille, et entraine cette dernière vers le haut. Le clapet principal assemblé à la douille s'écarte alors du siège principal jusqu'à sa position ouverte illustrée à la figure 5. Le système de clapet est alors dans un état dit ouvert grand débit, le produit de remplissage s'écoulant par l'orifice 11 de décharge du bec.The further upward movement of the valve stem in a raised position, via the control member, drives the central valve upwards. During this movement, the central valve comes at its upper end edge 61 against the lower edge 924 of the sleeve, and drives the latter upwards. The main valve assembled to the sleeve then deviates from the main seat to its open position illustrated in FIG. figure 5 . The valve system is then in a state called high open flow, the filling product flowing through the orifice 11 of discharge spout.

Lors de ces déplacements, la partie 922 supérieure de la douille 92 est disposée dans la bague 93 et coulisse le long de la paroi tubulaire de cette dernière.During these movements, the upper portion 922 of the sleeve 92 is disposed in the ring 93 and slides along the tubular wall of the latter.

Les moyens de dosage sont par exemple de type pondéral, l'organe de commande étant asservi par un capteur de pesée qui est placé au niveau d'un dispositif de support de récipient. En variante, l'organe de commande est asservi par un capteur de détection du niveau de remplissage du récipient ou un capteur de débit venant s'intercaler entre le récipient et le bec au moment du remplissage, ou par un système volumétrique.The dosing means are for example of weight type, the control member being controlled by a weighing sensor which is placed at a container support device. Alternatively, the control member is controlled by a sensor for detecting the filling level of the container or a flow sensor that is interposed between the container and the nozzle at the time of filling, or by a volumetric system.

Le fonctionnement du dispositif va à présent être décrit en référence aux figures 1, 3, 5 et 6.The operation of the device will now be described with reference to Figures 1, 3 , 5 and 6 .

Pour le remplissage d'un récipient, le système de clapet initialement dans son état fermé de la figure 1, est amené dans son état ouvert petit débit de la figure 6 pour démarrer le remplissage avec un petit débit, puis dans son état ouvert grand débit illustré à la figure 5. En variante le système de clapet peut être amené directement de son état fermé vers son état ouvert grand débit pour démarrer directement le remplissage avec un grand débit.For filling a container, the valve system initially in its closed state of the figure 1 , is brought into its open state small flow of the figure 6 to start filling with a small flow, then in its open state large flow illustrated in the figure 5 . In a variant, the valve system can be brought directly from its closed state to its open, high-flow state to directly start filling with a large flow rate.

En fin de remplissage, le système de clapet est amené dans son état ouvert petit débit illustré à la figure 6. La quantité de produit de remplissage présente dans le premier espace 81 annulaire et dans les rainures 34 est en majeure partie aspirée, par effet venturi, par le flux de produit de remplissage passant par l'orifice 31 secondaire dudit clapet principal. Le système de clapet est maintenu dans cet état ouvert petit débit sur une durée suffisante pour aspirer et évacuer le produit de remplissage.At the end of filling, the valve system is brought into its open state small flow illustrated at the figure 6 . The amount of filler present in the first annular space 81 and in the grooves 34 is for the most part sucked, by the venturi effect, by the flow of filler passing through the secondary orifice 31 of said main valve. The valve system is maintained in this open, low flow state for a time sufficient to aspirate and evacuate the filler.

Le système de clapet est ensuite amené dans son état fermé illustré aux figures 1 et 3. La petite quantité de produit de remplissage présente sur le bord 62 inférieur du clapet central migre par capillarité dans les rainures reliées entre elles par le second espace 82 annulaire, puis dans le premier espace 81 annulaire, garantissant ainsi qu'aucune goutte ne tombe.The valve system is then brought into its closed state illustrated in FIGS. Figures 1 and 3 . The small amount of filling material present on the lower edge 62 of the central valve migrates by capillarity into the grooves interconnected by the second annular space 82, then into the first annular space 81, thus ensuring that no drop falls.

Les rainures 34 et les espaces 81, 82 annulaires sont dimensionnés de manière à définir un volume de rétention suffisant pour contenir la quantité de produit de remplissage susceptible d'être retenue sous le clapet central lors de sa fermeture. A titre d'exemple, en référence à la figure 3, le bord 32 inférieur comprend par exemple quatre premières rainures 34a disposées à 90° les unes des autres, et quatre secondes rainures 34b, de dimensions moins importantes que celles des premières rainures, disposées entre ces dernières à 45°. Par ailleurs, la conicité du bord d'extrémité inférieur est définie afin de permettre une migration par capillarité du produit de remplissage resté sous le clapet 6 central vers les rainures.The grooves 34 and the annular spaces 81, 82 are sized so as to define a retention volume sufficient to contain the amount of filler that can be retained under the central valve when it is closed. For example, with reference to the figure 3 , the lower edge 32 comprises for example four first grooves 34a arranged at 90 ° to each other, and four second grooves 34b, of smaller dimensions than those of the first grooves disposed between them at 45 °. Furthermore, the conicity of the lower end edge is defined to allow a capillary migration of the filling product remained under the central valve 6 to the grooves.

Le dispositif de remplissage selon l'invention peut également être utilisé pour un remplissage effectué uniquement en petit débit, avec le système de clapet à l'état ouvert petit débit.The filling device according to the invention can also be used for filling carried out only in small flow, with the valve system in the open state small flow.

Dans une variante, le système de commande comprend une tige pleine de commande portant en extrémité inférieure le clapet central, comme précédemment, ainsi qu'une tige creuse de commande portant en extrémité inférieure le clapet principal, dans laquelle coulisse la tige pleine. La douille portant les ailettes de centrage est montée sur la tige creuse. Chaque tige de commande est alors assemblée en extrémité supérieure à un organe de commande pour son déplacement entre sa position ouverte et sa position fermée.In a variant, the control system comprises a solid control rod carrying at its lower end the central valve, as before, and a hollow control rod carrying at the lower end the main valve, in which the solid rod slides. The sleeve carrying the centering fins is mounted on the hollow rod. Each control rod is then assembled at the upper end to a control member for its movement between its open position and its closed position.

Bien que l'invention ait été décrite en liaison avec un mode de réalisation particulier, il est bien évident qu'elle n'y est nullement limitée et qu'elle comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci entrent dans le cadre de l'invention, telle que définie par les revendications.Although the invention has been described in connection with a particular embodiment, it is obvious that it is not limited thereto and that it comprises all the technical equivalents of the means described and their combinations if they are within the scope of the invention as defined by the claims.

Claims (6)

  1. Filling device comprising
    - a filling spout (1) comprising a globally tubular body (10) having an inner passage (10a) with a longitudinal axis (A) and an open lower axial end constituting the discharge aperture (11) of the filling spout, the inner surface (2) of the tubular body comprising a lower portion (22) comprising a portion defining a main valve seat (221),
    - means of metering comprising a valve system (3, 6) mounted movably in the filling spout, and a control system (9) able to longitudinally displace said valve system between a closed state wherein the valve system comes via a main closing portion (421) of its exterior surface (4) against the main seat in order to close the discharge aperture, and at least one open state wherein said main closing portion is separated from said main seat,
    said valve system comprising
    - a first tubular valve (3), called main valve, comprising a lower annular edge (32) delimiting a lower aperture (31), called secondary aperture, its outer surface (4) comprising a lower portion (42) that extends to said lower edge (32) and which comprises said main closing portion (421), its inner surface (5) comprising a lower portion (52) extending to said lower edge (32) comprising a portion forming a valve seat (521), called secondary seat, and
    - a second cylindrical valve (6), called central valve, mounted movably in the main valve (3), and comprising a lower end edge (62), its outer surface (7) comprising a low portion (72) that extends to said lower end edge and which comprises a closing portion (721), called secondary closing portion,
    said control system being able to displace the main valve (3) between a closed position, wherein its main closing portion (421) is against the main seat (221), and at least one open position wherein its main closing portion is separated from the main seat, and able to displace the central valve (6) between a closed position wherein its secondary closing portion (721) is against the secondary seat (521) and at least one open position wherein its secondary closing portion is separated from the secondary seat,
    said main valve comprising at least one opening (35) guaranteeing a fluid communication between its inner passage (30a) and the inner passage (10a) of the spout, characterized in that
    said lower edge (32) of the main valve is provided with radial grooves (34), exiting onto the inner surface (5) of said main valve.
  2. Filling device according to claim 1, characterized in that, for the passing from a high flow open state of the valve system wherein the main valve (3) and the central valve (6) are in their open position, to the closed state of the valve system wherein the main valve and the central valve are in their closed position, the control system (9) is able in a first step to displace the main valve to its closed position, in a low flow open state of the valve system, then to displace the central valve to its closed position.
  3. Filling device according to claim 1 or 2, characterized in that
    - the lower portion (42) of the outer surface (4) of the main valve (3) comprises a substantially cylindrical final portion (422), which extends from the main closing portion (421) to said lower edge (32) and whereon exit said grooves (34),
    - the lower portion (22) of the inner surface (2) of the tubular body (10) comprises a final portion (222) that extends from said main seat (221) to the main aperture (11),
    - said final portions (422, 222) define together, in the closed position of the main valve, a first annular space (81).
  4. Filling device according to one of claims 1 to 3, characterized in that
    - the lower portion (52) of the inner surface (5) of the main valve (3) comprises a final portion (522) that extends from the secondary seat (521) to said lower edge (32), and whereon exit the grooves (34),
    - the lower portion (72) of the exterior surface (7) of the central valve (6) comprising a final portion (722) that extends from said secondary closing portion (721) to the lower end edge (62),
    - said final portions (522, 722) defining between them, in the closed position of the central valve and of the main valve, a second annular space (82).
  5. Filling device according to one of claims 1 to 4, characterized in that the lower edge (62) of the central valve (6) has a tapered surface, of which the cone angle is between 179° and 120°.
  6. Filling device according to one of claims 1 to 5, characterized in that the control system (9) comprises
    - a valve rod (91) extending substantially axially in the tubular body (10), the central valve (6) being mounted at the lower end of the valve rod, the main valve (3) being assembled to a bushing (92) mounted slidingly on the valve rod between said central valve and a shoulder of said rod,
    - a spring (95) being mounted between the bushing and said shoulder in order to elastically solicit said bushing in the direction of the central valve, and
    - a control member able to displace the valve rod between a low position wherein the central valve is in its closed position and the main valve is elastically solicited by the spring in its closed position, an intermediary position wherein the central valve is in an open position and the main valve is elastically solicited by the spring in its closed position, and a high position wherein the central valve is in an open position in abutment against the bushing and the main valve in open position.
EP10771772.0A 2009-11-04 2010-11-03 Filling device having a special valve system Active EP2496513B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0957798A FR2952047B1 (en) 2009-11-04 2009-11-04 FILLING DEVICE WITH PARTICULAR VALVE SYSTEM
PCT/EP2010/066708 WO2011054850A1 (en) 2009-11-04 2010-11-03 Filling device having a special valve system

Publications (2)

Publication Number Publication Date
EP2496513A1 EP2496513A1 (en) 2012-09-12
EP2496513B1 true EP2496513B1 (en) 2015-01-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10771772.0A Active EP2496513B1 (en) 2009-11-04 2010-11-03 Filling device having a special valve system

Country Status (6)

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US (1) US9233821B2 (en)
EP (1) EP2496513B1 (en)
CN (1) CN102630214B (en)
BR (1) BR112012010474A2 (en)
FR (1) FR2952047B1 (en)
WO (1) WO2011054850A1 (en)

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CN102897700B (en) * 2012-08-15 2014-04-30 北京强度环境研究所 Upper-opening-type filling valve with central small flow rate
DE102013109633A1 (en) * 2013-09-04 2015-03-05 Sig Technology Ag Device for controlling the flow rate
CN105600725A (en) * 2015-10-19 2016-05-25 苏州市天幕景观装饰工程有限公司 Leak-resistant filling valve
CN109466835B (en) * 2018-11-09 2023-12-15 广州达意隆包装机械股份有限公司 Rotary filling machine

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Also Published As

Publication number Publication date
FR2952047A1 (en) 2011-05-06
US9233821B2 (en) 2016-01-12
CN102630214B (en) 2015-02-25
US20120234435A1 (en) 2012-09-20
CN102630214A (en) 2012-08-08
BR112012010474A2 (en) 2016-03-15
WO2011054850A1 (en) 2011-05-12
FR2952047B1 (en) 2011-12-09
EP2496513A1 (en) 2012-09-12

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