EP2303706B1 - Dispositif de dosage et procede d'utilisation de ce dispositif de dosage - Google Patents

Dispositif de dosage et procede d'utilisation de ce dispositif de dosage Download PDF

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Publication number
EP2303706B1
EP2303706B1 EP08773423.2A EP08773423A EP2303706B1 EP 2303706 B1 EP2303706 B1 EP 2303706B1 EP 08773423 A EP08773423 A EP 08773423A EP 2303706 B1 EP2303706 B1 EP 2303706B1
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EP
European Patent Office
Prior art keywords
powder
metering
metering chamber
valve
outlet valve
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.)
Not-in-force
Application number
EP08773423.2A
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German (de)
English (en)
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EP2303706A1 (fr
Inventor
Rolf Scharger
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.)
Harro Hofliger Verpackungsmaschinen GmbH
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Harro Hofliger Verpackungsmaschinen GmbH
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Publication of EP2303706A1 publication Critical patent/EP2303706A1/fr
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Publication of EP2303706B1 publication Critical patent/EP2303706B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/16—Methods of, or means for, filling the material into the containers or receptacles by pneumatic means, e.g. by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • B65B1/36—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods
    • 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
    • B65B37/00—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged
    • B65B37/14—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged by pneumatic feeders
    • 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
    • B65B37/00—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged
    • B65B37/16—Separating measured quantities from supply
    • 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
    • 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
    • B65B2039/009—Multiple outlets

Definitions

  • the invention relates to a metering device for fine-grained powder, in particular for medical powder for pulmonary administration, and to a method for operating this metering device.
  • a metering device for fine-grained, dry powder is known in which the powder is kept in a closed, funnel-shaped reservoir.
  • the funnel-shaped reservoir has on its underside an opening which is closed by means of an outlet valve.
  • the valve body of the exhaust valve is axially displaceable by means of piezoelectric elements, and can be opened, closed and also vibrated in this way.
  • the vibration movement of the valve body contributes to a loosening of the powder and to an improved discharge from the reservoir.
  • the disadvantage here is that a dissolution of agglomerates in the powder is not reliably ensured.
  • a complex sensor and a corresponding process control is required to maintain a sufficient level of the powder in the reservoir.
  • the container When falling below the minimum required level, the container must be opened and refilled, which affects the economy of the arrangement.
  • the order is complicated in construction.
  • the piezoelectric drive of the valve body is in the powder flow and must therefore be protected from contamination and contamination of the powder.
  • metering devices for fine-grained powder are from GB-A-871651 and the DE-A-3310452 known.
  • the invention has for its object to provide a metering device for fine-grained powder, which allows a simple and cost-effective and accurate metering of the powder with a simple structure and low operating costs.
  • the invention is further based on the object of specifying a method for operating the metering device, with which the powder can be metered accurately and economically with the dissolution of agglomerates.
  • a metering device for fine-grained powder, in particular for medicinal powder for pulmonary administration comprises a powder pump for conveying the powder and a metering device supplied with the powder by the powder pump.
  • the doser comprises a continuous powder channel and at least one metering chamber with an outlet valve, wherein the metering chamber branches off at an angle from the powder channel, and wherein the metering chamber has a larger cross section than the powder channel.
  • the outlet valve comprises a valve needle which extends into the interior of the metering chamber and which carries at least one radially protruding bulging projection for the powder.
  • the axial movement of the valve needle contributes by means of Auflock ceremoniessvorsprungs to loosen up the powder and agglomerates formed there.
  • the powder is conveyed through the powder channel by means of the powder pump, wherein the at least one metering chamber is filled with the powder.
  • the volume flow of the powder conveyed by the powder pump, of a powder-air mixture or of a powder-gas mixture has a certain speed in the powder duct of the dosing unit as a consequence of its cross section.
  • the flow cross section increases overall, whereby the flow rate is reduced.
  • the pumped powder can fall out of the powder channel or out of its carrier air flow out into the metering chamber, whereby it is filled with the powder.
  • a level control of the dosing is not required. Rather, only the lapse of a time interval is waited by the self-leveling filling of the dosing has taken place. Thereafter, the promotion of the powder is interrupted by means of the powder pump.
  • the volume of the metering chamber is preferably dimensioned such that several and in particular four target containers can be filled directly one behind the other from a single metering chamber without the powder supply in the metering chamber being exhausted.
  • target containers for example in the form of hard gelatine capsules, so-called vials, and other target containers can be filled in a matrix-shaped frame for receiving a multiplicity of target containers.
  • the time required to replace this frame with the target containers after filling can be used for the self-leveling refilling of the metering chambers by means of the powder pump, so that thereby no time delay occurs.
  • the metering device and the associated method can be used with a correspondingly high efficiency.
  • the powder channel is arranged horizontally in operation, while the at least one dosing branched off at right angles from the powder channel and is arranged vertically with its longitudinal axis.
  • the powder pump, a supply line leading from the powder pump to the doser, the powder channel and a return line returning from the metering device to the powder pump form a closed circuit for the powder.
  • the powder can be conveyed with excess, but without losses through the powder channel and back to the powder pump, as a result of the self-leveling described above, the amount required for filling the metering chamber is automatically separated from this powder stream. Even with a large number of dosing chambers, which branch off sequentially from the powder channel, it is ensured that each individual dosing chamber reaches the required level.
  • the cross section of the metering chamber in the connection region to the powder channel is at least twice as large and in particular at least three times as large as the cross section of the powder channel.
  • the outlet valve is preferably a particular conical, to the outside of the metering chamber opening valve.
  • the exiting powder flows around the outside of the valve seat, the valve body raised to the outside and is thereby deflected by this, which contributes to the loosening of the powder.
  • a subsequent closing movement of the valve body against the exiting powder flow avoids that residual powder is compressed at the valve seat in an undesirable manner.
  • the loosening projection is arranged at an axial distance from the valve seat of the outlet valve in the interior of the dosing chamber. Due to the spatial distance between the loosening projection and the valve seat, a reliable fluidization of the powder upstream of the valve seat is ensured, so that it can emerge undisturbed through the outlet valve in its entirety.
  • the loosening protrusion may take various suitable forms. Suitably, it is designed as a valve needle rotating around the plate, whereby the loosening movement of the valve needle is uniformly transmitted to the surrounding powder.
  • a first drive for the valve needle for opening and closing the exhaust valve and a second, in particular connected in series with the first drive second drive for an oscillating movement of the valve needle is provided.
  • the correspondingly large stroke for opening or closing the exhaust valve is carried out with the first drive designed for this purpose.
  • valve needle is expediently guided through the dosing chamber in the longitudinal direction, with the two drives acting on the valve needle on the side opposite the outlet valve.
  • the drives and their connection to the valve needle are thus not in the flow of the emerging from the metering powder, so that here independent protective measures are not required.
  • the individual metering chambers, including their drives in coaxial design can be made very slim, so that they are close to each other in the same Grid as the target container can be arranged. The simultaneous, parallel filling of target containers is thereby possible in a simple manner.
  • the filling amount of the powder received by the target container is determined by means of a weighing cell for the target container, wherein the outlet valve is controlled or regulated by means of the measurement result of the load cell.
  • the outlet valve is controlled or regulated by means of the measurement result of the load cell.
  • Fig. 1 shows a side view of a metering device according to the invention for fine powder 1, in the illustrated embodiment for medical powder 1 for pulmonary administration with a particle size of ⁇ 5 microns.
  • the metering device comprises a powder pump 2 for conveying the powder 1, as indicated by arrows, and one fed by the powder pump 2 with the powder 1 metering 3.
  • the metering device 3 is provided with at least one, in this example six in Fig. 3 shown metering chambers 5 for simultaneous metering of the powder 1 and filling the same number of target containers 13 provided. It can also be a different number of metering chambers 5 appropriate.
  • the target containers 13 may be hard gelatin capsules, vials or other target vessels which are used in an inhalation device, not shown, with the appropriate amount of powder.
  • the target container 13 are each on a load cell 14, via which the degree of filling of the target container 13 is determined.
  • powder channel 4 which together with the powder pump 2, one leading from the powder pump 2 to the metering supply line 8 and a back from the metering unit 3 to the powder pump 2 return line a forms closed circuit for the powder 1 according to the arrows shown there.
  • Fig. 2 shows an external perspective view of the doser 3 after Fig. 1 with details of its structural design.
  • the metering device 3 comprises a housing 15 extending in a longitudinal direction, through which the powder channel 4 passes axially parallel.
  • the outlet valves 6 each comprise a continuous valve needle 10, which are provided in the region of the outlet valve 6, each with a valve body 16 for opening or closing the respective outlet valve 6.
  • the valve needles 10 are in their longitudinal direction through the metering chambers 5 (FIG. Fig.
  • the outlet valve 6 opposite end are as shown in the Fig. 1 and 3 each a first drive 12 and a second drive 21 connected to the valve needle 10, so that all the valve needles 10 can be moved independently of one another according to a double arrow 17 axially.
  • Three of the total of six valve needles 10 are shown in their closed position, with the associated valve bodies 16 resting tightly on their valve seat 20 formed in the housing 15, while the other three valve needles are pushed down so that the associated valve body 16 is downwardly from the valve seat 20 is lifted and the respective outlet valve 6 opens.
  • Fig. 3 shows a longitudinal sectional view of the metering device 3 after the Fig. 1 and 2 With details of the mutual arrangement of the powder channel 4, the metering chambers 5, the target container 13 and the load cells 14. It can be seen that the powder channel 4 is guided in the longitudinal direction through the housing 15, wherein the powder channel 4 in operation horizontally, ie transversely to Weight direction runs. From the powder channel 4 at least one metering chamber 5 branches off at an angle, wherein in the embodiment shown a plurality, here six total metering chambers 5 are provided.
  • the metering chambers 5, like the powder channel 4, have a cylindrical shape, but extend along their longitudinal axis 7, which lies perpendicular to the longitudinal axis of the powder channel 4 and is arranged vertically, ie in the direction of the weight force.
  • the metering chambers 5 In the connection region of the metering chambers 5 adjacent to the powder channel 4, the metering chambers 5 have a larger cross section than the powder channel 4.
  • the cross section of the metering chambers 5 in this connection region is at least twice as large and here at least three times as large as the cross section of the powder channel 4.
  • Each of the metering chambers 5 has at its lower end in the direction of gravity each a conically tapered Section, which is provided to the outside of the metering chambers 5 and to the outside of the metering unit 3, each with an outlet valve 6.
  • the outlet valve 6 comprises a molded into the housing 15, in Fig. 4 illustrated valve seat 20 and a valve needle 10 with a molded valve body 16 which in the closed state at the valve seat 20 (FIG. Fig. 4 ) of the housing 15 and thereby closes the outlet valve 6.
  • Three of the total of six valve needles 10 are shown pushed axially downward compared to the other three valve needles 10, wherein the valve body 16 of the molded in the housing 15 valve seat 20 (FIGS. Fig. 4 ) is lifted off.
  • valve needle 10 takes place in the opening direction against the biasing force of a compression spring 19 by means of the first, here pneumatic drive 12.
  • pneumatic drive 12 may also be an electromagnetic design or the like appropriate.
  • a second drive 21 is arranged between the first drive 12 and the upper shaft end of the valve needle 10, a second drive 21 is arranged. It is connected in series with the first drive 12 such that the second drive 21, together with the valve needle 10, carries out the stroke generated by the first drive 12.
  • the second drive 21 is just like the first drive 12 designed as a linear drive, but deviating designed for a lower, but high-frequency stroke. For this purpose it is designed as a piezoelectric drive. But it may also be appropriate to deviate designs such as electromagnetic drives.
  • the valve needle 10 can be offset, if necessary, in an axially oscillating stroke movement. Due to the series connection Both drives 12, 21 are superimposed on their two strokes, but can be switched on independently, controlled or regulated and also switched off.
  • Fig. 4 shows an enlarged detail view of the arrangement according to Fig. 3 , wherein like features are provided with the same reference numerals.
  • the valve body 16 lies on the outside of the housing 15 and, together with the associated valve seat 20, forms a valve which opens toward the outside of the metering chamber 5 or of the housing 15.
  • the shape of the valve body 16 and the associated valve seat 20 is conical in the sealing area, which contributes to a fine distribution of the exiting powder 1. Incidentally, the valve body 16 is rounded.
  • the valve needle 10 extends through the interior of the metering chamber 5.
  • the valve needles 10 may have a smooth shaft.
  • the valve needles 10 may be provided with various radially protruding loosening protrusions 11 for the powder. At least one such Aufklerungsvorsprung 11 is provided. It may be expedient to arrange several, in particular up to three loosening projections 11 on a single valve needle 10. These loosening projections 11 may be radially projecting teeth or the like and are designed in the illustrated embodiment as around the shaft of the valve needle 10 rotating plate, wherein preferably only one such Auflock ceremoniessvorsprung is arranged on each of a valve needle 10.
  • the loosening projections 11 are not in the immediate vicinity of the respective outlet valve 6, but at an axial distance from the Valve seat 20 in the interior of the respective metering chamber 5.
  • the axial position of the respective loosening projection 11 is advantageous in the region of the conically tapered portion or in the transition region to the cylindrical portion of the metering chamber fifth
  • the powder 1 is conveyed through the powder channel 4 in the form of the above-described closed circuit. If the metering chambers 5 are not or not completely filled with the powder 1, there is an extended flow cross-section in the connection area between the metering chambers 5 and the powder channel 4, in which by arrows 18 (FIG. Fig. 3 ) is delayed in the powder channel 4 indicated powder flow. As a result of this delay, part of the powder 1 falls from the powder channel 4 into the powder chambers 5, as a result of which the filling level thereof increases.
  • the powder pump can continue to run as long as required without overfilling. In fact, however, it only has to run as long as required for filling the metering chambers 5 is. This period is used, the target container 13 ( Fig. 1 ) on the load cells 14 under the doser 3 to position. Depending on a target container 13 is in each case an outlet valve 6 with the associated metering chamber 5. After elapse of any time interval which is at least so large that a self-leveling filling of the metering chamber 5 has taken place, the promotion of the powder 1 is interrupted by the powder pump 2 , Thereafter, the valve needles 10 are pressed by their first drives 12 according to the double arrow 17 down so that the respective valve body 16 lifts from the associated valve seat 20.
  • the exhaust valve 6 and the associated drives 12, 21 are by means of Measurement result of the load cell 14 is controlled or regulated in such a way that the second drive 21 is switched off when reaching the predetermined filling amount in the target container 13 with a high reaction rate.
  • a slip of the powder 1 from the metering chambers 5 then stops immediately.
  • the typical dosing mass for a single target container 13 is in a range of from 0.2 mg to 50 mg inclusive.
  • target containers 13 it may be appropriate to arrange exactly the same amount of target containers 13 in a row as dosing chambers 5 are present. After filling these target container 13 by means of a respective metering chamber 5 and closed exhaust valves 6, the promotion of the powder 1 is resumed by means of the powder pump 2 until again a self-leveling filling of the metering chamber 5 has taken place. During this time, a new series of still empty target containers 13 can be positioned below the metering chambers 5 for a subsequent filling operation, which then takes place again in the manner described above.
  • a larger number of target containers 13 in a matrix-like manner, for example in a frame.
  • the volume of the metering chambers 5 is dimensioned such that the powder reservoir accumulated therein is sufficient for the filling of several, here four target containers 13, wherein then after filling of four reservoirs 13 from each metering chamber 5 is still a residual amount of powder 1 in each Dosing chamber 5 remains.
  • up to four target containers 13 are then filled sequentially between two successive fillings of the associated metering chambers 5. Only then is the powder pump 1 put back into operation to replenish the metering chambers 5, this refilling takes place during the replacement of the filled target container 13 against a new frame with empty target container 13.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Basic Packing Technique (AREA)

Claims (15)

  1. Dispositif de dosage pour une poudre à grains fins (1), en particulier pour une poudre médicinale (1) destinée à une administration pulmonaire, comprenant une pompe à poudre (2) qui est destinée à acheminer la poudre (1), et un doseur (3) qui alimenté en poudre (1) par la pompe à poudre (2), étant précisé que le doseur (3) comprend un conduit de poudre continu (4) et au moins une chambre de dosage (5) avec une soupape de sortie (6), que la chambre de dosage (5) forme un embranchement angulaire par rapport au conduit de poudre (4), et que la chambre de dosage (5) présente une plus grande section transversale que le conduit de poudre (4),
    caractérisé en ce que la soupape de sortie (6) comprend un pointeau (10) qui s'étend dans l'espace intérieur de la chambre de dosage (5) et qui porte au moins une saillie d'aérage (11) saillant radialement pour la poudre (1), étant précisé qu'il est prévu que le pointeau de soupape (10), quand la soupape de sortie est ouverte, décrive un mouvement de va-et-vient pour aérer la poudre.
  2. Dispositif de dosage selon la revendication 1,
    caractérisé en ce que le conduit de poudre (4) est disposé à l'horizontale, en fonctionnement, et en ce que la ou les chambres de dosage (5) forment un embranchement à angle droit par rapport au conduit de poudre (4), en étant disposées avec leur axe longitudinal (7) à la verticale.
  3. Dispositif de dosage selon la revendication 1 ou 2,
    caractérisé en ce que plusieurs, et en particulier six chambres de dosage (5) forment un embranchement par rapport au conduit de poudre continu (4).
  4. Dispositif de dosage selon l'une des revendications 1 à 3,
    caractérisé en ce que la pompe à poudre (2), une conduit d'amenée (8) qui va de la pompe à poudre (2) au doseur (3), le conduit de poudre (4) et un conduit de remise en circulation (9) qui ramène du doseur (3) à la pompe à poudre (2) forment un circuit fermé pour la poudre (1).
  5. Dispositif de dosage selon l'une des revendications 1 à 4,
    caractérisé en ce que la section transversale de la chambre de dosage (5), dans la zone de raccordement au conduit de poudre (4), est au moins deux fois plus grande, et en particulier au moins trois fois plus grande que la section transversale du conduit de poudre (4).
  6. Dispositif de dosage selon l'une des revendications 1 à 5,
    caractérisé en ce que la soupape de sortie (6) est une soupape en particulier conique, qui s'ouvre sur le côté extérieur de la chambre de dosage (5).
  7. Dispositif de dosage selon l'une des revendications 1 à 6,
    caractérisé en ce que la saillie d'aérage (11) est disposée dans l'espace intérieur de la chambre de dosage (5) à une distance axiale d'un siège de soupape (20) de la soupape de sortie (6).
  8. Dispositif de dosage selon la revendication 7,
    caractérisé en ce que la saillie d'aérage (11) est conçue comme un disque qui fait le tour du pointeau de soupape (10).
  9. Dispositif de dosage selon la revendication 7 ou 8,
    caractérisé en ce qu'il est prévu un premier entraînement (12) pour le pointeau de soupape (10), pour ouvrir et fermer la soupape de sortie (6), ainsi qu'un second entraînement (21), en particulier monté en série par rapport au premier entraînement (12), pour un mouvement de va-et-vient axial du pointeau de soupape (10).
  10. Dispositif de dosage selon la revendication 9,
    caractérisé en ce que le pointeau de soupape (10) traverse la chambre de dosage (5) dans le sens longitudinal, et en ce que les entraînements (12, 21) agissent sur le pointeau de soupape (10) sur le côté opposé à la soupape de sortie (6).
  11. Procédé pour faire fonctionner un dispositif de dosage qui présente les
    caractéristiques selon l'une des revendications 1 à 10, comprenant les étapes suivantes :
    - à l'aide de la pompe à poudre (2), la poudre (1) est acheminée par le conduit de poudre (4), étant précisé que la ou les chambres de dosage (5) se remplissent de poudre (1) ;
    - après écoulement d'un laps de temps pendant lequel a eu lieu un remplissage autonivelant de la chambre de dosage (5), le fonctionnement de la pompe à poudre (2) est interrompu ;
    - ensuite a lieu un remplissage d'au moins un récipient cible (13), à partir de la chambre de dosage (5), avec l'ouverture de la soupape de sortie (6) et le maintien d'une quantité résiduelle de poudre (1) dans la chambre de dosage (5) ;
    - enfin, l'acheminement de la poudre (1) à l'aide de la pompe à poudre (2) reprend jusqu'à ce qu'un remplissage autonivelant de la chambre de dosage (5) ait eu lieu, après quoi d'autres remplissages de récipients cibles (13) et d'autres remplissages autonivelants de la chambre de dosage (5) ont lieu ;
    caractérisé en ce que :
    - lors du remplissage à partir de la chambre de dosage (5), le pointeau de soupape (10) décrit un mouvement de va-et-vient pour aérer la poudre (1) alors que la soupape de sortie (6) est ouverte ;
    - après le remplissage, la soupape de sortie se ferme.
  12. Procédé selon la revendication 11,
    caractérisé en ce que, entre deux remplissages successifs de la chambre de dosage (5), plusieurs et en particulier quatre récipients cibles (13) sont remplis à partir d'une seule chambre de dosage (5).
  13. Procédé selon la revendication 11 ou 12,
    caractérisé en ce que la quantité de remplissage de la poudre (1) reçue par le récipient cible (13) est déterminée à l'aide d'une cellule de pesage (14) pour le récipient cible (13), étant précisé que la soupape de sortie (6) est commandée ou régulée à l'aide du résultat de mesure de la cellule de pesage (14).
  14. Procédé selon l'une des revendications 11 à 13,
    caractérisé en ce qu'une ouverture et une fermeture de la soupape de sortie (6) a lieu à l'aide d'un premier entraînement (12) pour le pointeau de soupape (10), et en ce qu'il est prévu, à l'aide d'un second entraînement (21), en particulier monté en série par rapport au premier entraînement (12), un mouvement de va-et-vient en particulier axial du pointeau de soupape (10) pour aérer la poudre (1).
  15. Procédé selon la revendication 14,
    caractérisé en ce que le second entraînement (21) n'est déclenché qu'après l'ouverture de la soupape de sortie (6).
EP08773423.2A 2008-06-13 2008-06-13 Dispositif de dosage et procede d'utilisation de ce dispositif de dosage Not-in-force EP2303706B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/004747 WO2009149727A1 (fr) 2008-06-13 2008-06-13 Dispositif de dosage et procédé d’utilisation de ce dispositif de dosage

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Publication Number Publication Date
EP2303706A1 EP2303706A1 (fr) 2011-04-06
EP2303706B1 true EP2303706B1 (fr) 2013-11-20

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US (1) US8757220B2 (fr)
EP (1) EP2303706B1 (fr)
WO (1) WO2009149727A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103482090B (zh) * 2008-08-05 2016-02-10 曼康公司 改进的粉末分配器模块及粉末分配器组件
DE202013008523U1 (de) * 2013-09-25 2013-10-21 Harro Höfliger Verpackungsmaschinen GmbH "Dosiereinrichtung"
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CN111846307B (zh) * 2020-08-05 2021-09-21 楚天科技股份有限公司 一种药液灌装方法
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EP2303706A1 (fr) 2011-04-06
US20110108157A1 (en) 2011-05-12
US8757220B2 (en) 2014-06-24
WO2009149727A1 (fr) 2009-12-17

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