EP2001789B1 - Filling element comprising a flowmeter - Google Patents

Filling element comprising a flowmeter Download PDF

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Publication number
EP2001789B1
EP2001789B1 EP07723525.7A EP07723525A EP2001789B1 EP 2001789 B1 EP2001789 B1 EP 2001789B1 EP 07723525 A EP07723525 A EP 07723525A EP 2001789 B1 EP2001789 B1 EP 2001789B1
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EP
European Patent Office
Prior art keywords
filling
liquid
filling element
channel
valve
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EP07723525.7A
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German (de)
French (fr)
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EP2001789A1 (en
Inventor
Thomas Stienen
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.)
KHS GmbH
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KHS GmbH
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Publication date
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Priority to SI200731827A priority Critical patent/SI2001789T1/en
Publication of EP2001789A1 publication Critical patent/EP2001789A1/en
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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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/26—Methods or devices for controlling the quantity of the material fed or filled
    • B65B3/30—Methods or devices for controlling the quantity of the material fed or filled by volumetric measurement
    • 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
    • B67C3/20—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus with provision for metering the liquids to be introduced, e.g. when adding syrups
    • 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
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/26—Methods or devices for controlling the quantity of the material fed or filled
    • B65B3/34—Methods or devices for controlling the quantity of the material fed or filled by timing of filling operations
    • B65B3/36—Methods or devices for controlling the quantity of the material fed or filled by timing of filling operations and arresting flow by cut-off means
    • 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
    • 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

Definitions

  • the invention relates to a filling element according to the preamble of claim 1 and to a filling machine of rotating design according to the preamble of claim 10.
  • Filling elements for filling bottles or similar containers with a liquid filling material are known in different designs, and also as filling elements for a volume-controlled filling (volumetric filling).
  • a flow meter is provided in a liquid line between a source of the liquid filling material (eg storage tank or boiler) and the respective filling element, which a the completion of the filling process, ie the closing of the liquid valve inducing measurement or control signal to a central control device (computer ) of the filling machine supplies.
  • a filling element has become known according to the EP 1 586 533 A1 , This document describes a filling element for filling bottles or similar containers with a filling material, with a formed in a housing of the filling element liquid channel to be connected to a source for the liquid filling connection and a discharge opening for the delivery of the liquid filling material to one forming filling container.
  • the flowmeter is a magnetic inductive flowmeter (MID) and it is further contemplated that the liquid valve opening and closing actuator will pass through the flow meter and thus through the meter. This approach may be disadvantageous in certain arrangements because the presence of the actuator
  • the object of the present invention is to avoid these disadvantages.
  • a filling element according to the patent claim 1 is formed.
  • a filling machine of peripheral design is the subject of claim 10.
  • the measuring unit of the flow meter is provided following the liquid valve in the direction of product flow. In particular, this does not require that when using an actuating rod for the liquid valve, this rod penetrates the measuring unit of the flow meter.
  • actuating rod which according to the invention does not pass through the measuring mechanism of the flow meter, can not adversely affect the accuracy of the measurement results.
  • actuating rod which according to the invention does not pass through the measuring mechanism of the flow meter, can not adversely affect the accuracy of the measurement results.
  • contour or volume deviations no harmful effect.
  • 1 is a filling element for pressureless filling of a liquid filling material in containers, ie in bottles 2, for free jet filling, in each of which is to be filled bottle 2 with its mouth of the bottle 2.1 at a distance, but centered under the filling element 1 is arranged the liquid product is supplied as a free jet 3 of the bottle 2.
  • the filling element 1 is provided together with a plurality of similar filling elements on the circumference of a rotatable about a vertical axis of the machine rotor, from which in the FIGS. 1 and 2 only a boiler 4 for the liquid product and a container or bottle carrier 5 are shown, on which the respective, executed in the illustrated embodiment as a PET bottle 2 bottle is held suspended during the filling process to a protruding flange 2.2.
  • the interior of the boiler 4 is part-filled with the liquid contents partially filled, so that above the level N of Medgutadors occupied by air and / or an inert gas at atmospheric pressure gas space 4.1 and below the level N is occupied by the contents occupied liquid space 4.2.
  • the filling element 1 consists of a Greelementgephinuse 6, which in the illustrated embodiment in the manner described in more detail below in three parts and in which the usual liquid channel 7 is formed, with its in the FIGS. 1 and 2 upper end or with a local connection 7.1 opens directly into the liquid space 4.2 and forms a discharge opening 8 at its lower end in the figures.
  • the liquid valve 9 is arranged in a conventional manner, which consists essentially of a valve seat with a valve seat in the liquid channel 7 cooperating valve body 10 which at the in the FIGS. 1 and 2 lower end of an actuating rod 11 is provided.
  • the actuating rod 11 which has, for example, a circular outer cross-section, oriented in the vertical direction and defines with its axis the vertical Greelementachse FA.
  • Axis Eisen with the axis FA is in the illustrated embodiment, in which the filling elements 1 are each provided directly on the underside of the boiler 4 and the actuating rod 11 extends through the interior of the boiler 4, the axis of the liquid channel 7 oriented.
  • a centering element 11.1 is provided in the region of the lower end of the actuating rod 11, but which does not hinder the flow of the liquid filling material. It is understood that the diameter of the liquid channel 7 is greater than the outer diameter of the actuating rod 11, so that in the liquid channel 7 to the actuating rod 11, an annular flow path is formed for the filling material.
  • the housing part 6.1 and the valve seat for valve body 10 of the liquid valve 9 is formed, i. It is understood that the transitions between the boiler 4 and the housing part 6.1 as well as between the housing parts 6.1 - 6.3, in particular in the region of the liquid passage 7 penetrating all housing parts with corresponding Seals are sealed.
  • the housing part 6.2 is part of the flow meter 13, for example, a magnetic, inductive flow meter (MID), wherein the local measuring channel or section 7.2, the Golfgutstrom detecting components (measuring unit) of the flow meter 13 are provided, namely in a magnetic inductive flow meter 13 at least one magnetic coil for generating a magnetic field, for example an alternating magnetic field in the product flow and at least one electrode for measuring the generated by the Gugutstrom in the magnetic field and the flow rate corresponding electrical measurement voltage.
  • MID magnetic, inductive flow meter
  • the other electrical components such as the control and measuring electronics of the flow meter 13 housed, u.a. for controlling the magnetic coil and for evaluating the measuring voltage and for forming a measuring signal supplied via a connecting line 15 to a central control unit (computer) of the filling machine.
  • the control and measuring electronics of the flow meter 13 housed, u.a. for controlling the magnetic coil and for evaluating the measuring voltage and for forming a measuring signal supplied via a connecting line 15 to a central control unit (computer) of the filling machine.
  • the diameter of the liquid channel 7 and the outer diameter of the actuating rod 11 are constant in section 7.2, so that the flow cross section for the liquid product in the measuring channel or section 7.2 does not change with the stroke of the actuating rod 11 and a high measurement accuracy is achieved.
  • the filling of the bottles 2 takes place with the filling elements 1 or with the filling these 1 having filling machine in the manner known from free-jet filling systems with volume control, d. H. after the inlet and positioning of the bottles 2 on the bottle carrier 5 below the respective filling element 1 whose liquid valve 9 is opened for the initiation of the filling process.
  • the filling process is terminated by closing the liquid valve 9, controlled by the signal supplied by the flow meter 13.
  • a gas barrier 16 is provided, which is formed in the simplest case of an insert with a plurality of openings or channels, for example, from a sieve-like insert .
  • the cross-section of these openings is then chosen so that after closing the liquid valve 9 of the located above the gas barrier 16 part of the liquid channel and thus in particular formed in the housing part 6.2 part of the liquid channel remains filled with the liquid product, this part of the liquid channel at least during the occurring during normal filling operation time intervals or phases in which the respective liquid valve 9 is closed, not emptied.
  • the liquid valves in the illustrated embodiment is designed so that it by lifting the valve body 10th closed and by lowering the valve body 10 is.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Basic Packing Technique (AREA)

Description

Die Erfindung bezieht sich auf ein Füllelement gemäß Oberbegriff Patentanspruch 1 sowie auf eine Füllmaschine umlaufender Bauart gemäß Oberbegriff Patentanspruch 10.
Füllelemente zum Füllen von Flaschen oder dergleichen Behälter mit einem flüssigen Füllgut, insbesondere auch zum Füllen von Flaschen mit Getränken, sind in unterschiedlichen Ausführungen bekannt, und dabei auch als Füllelemente für ein volumengesteuertes Füllen (volumetrisches Füllen). Bei diesen Füllelementen ist in einer Flüssigkeitsleitung zwischen einer Quelle des flüssigen Füllgutes (z.B. Vorratsbehälter oder Kessel) und dem jeweiligen Füllelement ein Durchflussmesser vorgesehen, der ein die Beendigung des Füllvorgangs, d.h. das Schließen des Flüssigkeitsventils veranlassendes Mess- oder Steuersignal an eine zentrale Steuereinrichtung (Rechner) der Füllmaschine liefert.The invention relates to a filling element according to the preamble of claim 1 and to a filling machine of rotating design according to the preamble of claim 10.
Filling elements for filling bottles or similar containers with a liquid filling material, in particular also for filling bottles with drinks, are known in different designs, and also as filling elements for a volume-controlled filling (volumetric filling). In these filling elements, a flow meter is provided in a liquid line between a source of the liquid filling material (eg storage tank or boiler) and the respective filling element, which a the completion of the filling process, ie the closing of the liquid valve inducing measurement or control signal to a central control device (computer ) of the filling machine supplies.

Bekannt wurde beispielsweise ein Füllelement entsprechend der EP 1 586 533 A1 . Diese Schrift beschreibt ein Füllelement zum Befüllen von Flaschen oder dergleichen Behälter mit einem Füllgut, mit einem in einem Gehäuse des Füllelements ausgebildeten Flüssigkeitskanal, der einen mit einer Quelle für das flüssige Füllgut zu verbindenden Anschluss sowie eine Abgabeöffnung für die Abgabe des flüssigen Füllgutes an einen zu füllenden Behälter bildet.
Dabei weist der Flüssigkeitskanal zwischen dem Anschluss und der Abgabeöffnung ein Flüssigkeitsventil mit einem mit einem Ventilsitz zusammenwirkenden Ventilkörper auf, wobei der Ventilkörper durch ein Betätigungselement zum Öffnen und Schließen des Flüssigkeitsventils bewegbar ist, und zwar für eine Steuerung des Füllprozesses in Abhängigkeit eines Durchflussmessers, der mit einem Messwerk die Durchflussmenge erfasst, die einen, einen Messkanal bildenden Abschnitt des Flüssigkeitskanals durchströmt. Mehr im Detail vorgesehen, dass es sich bei dem Durchflussmesser um einen magnetisch induktiven Durchflussmesser (MID) handelt, wobei weiterhin vorgesehen ist, dass das Betätigungselement für das Öffnen und Schließen des Flüssigkeitsventils durch den Durchflussmesser und somit auch durch das Messwerk hindurch reicht. Diese Vorgehensweise kann bei bestimmten Anordnungen nachteilig sein, da die Anwesenheit des BetätigungselementesFor example, a filling element has become known according to the EP 1 586 533 A1 , This document describes a filling element for filling bottles or similar containers with a filling material, with a formed in a housing of the filling element liquid channel to be connected to a source for the liquid filling connection and a discharge opening for the delivery of the liquid filling material to one forming filling container.
In this case, the liquid passage between the port and the discharge port on a liquid valve with a valve seat cooperating valve body, wherein the valve body is movable by an actuator for opening and closing the liquid valve, for a control of the filling process in response to a flow meter, with a flow meter detects the flow rate, which flows through a, a measuring channel forming portion of the liquid passage. In more detail, the flowmeter is a magnetic inductive flowmeter (MID) and it is further contemplated that the liquid valve opening and closing actuator will pass through the flow meter and thus through the meter. This approach may be disadvantageous in certain arrangements because the presence of the actuator

Seite 1a, Reinschrift innerhalb des Messbereiches des Messwerkes und/oder die Bewegungen des Betätigungselementes die Messergebnisse des Durchflussmessers verfälschen können. Ebenfalls muss der Durchmesser des Durchflussmessers bei der vorgestellten Anordnung bei gleichem Volumenstrom erheblich vergrößert werden, da der Durchmesser des Flüssigkeitsstromes durch die räumlichen Abmessungen des Betätigungselementes vergrößert wird, wodurch die Messgenauigkeit ebenfalls verschlechtert werden kann.Page 1a, fair copy within the measuring range of the measuring mechanism and / or the movements of the actuating element can falsify the measurement results of the flow meter. Also, the diameter of the flow meter in the proposed arrangement at the same volume flow must be significantly increased, since the diameter of the liquid flow is increased by the spatial dimensions of the actuator, whereby the measurement accuracy can also be degraded.

Die Aufgabe der vorliegenden Erfindung liegt darin, diese Nachteile zu vermeiden. Zur Lösung dieser Aufgabe ist ein Füllelement entsprechend dem Patentanspruch 1 ausgebildet. Eine Füllmaschine umlaufender Bauart ist Gegenstand des Patentanspruches 10.The object of the present invention is to avoid these disadvantages. To solve this problem, a filling element according to the patent claim 1 is formed. A filling machine of peripheral design is the subject of claim 10.

Bei dem erfindungsgemäßen Füllelement ist das Messwerk des Durchflussmessers in Füllgutströmungsrichtung auf das Flüssigkeitsventil folgend vorgesehen. Hierdurch besteht insbesondere nicht die Notwendigkeit, dass bei Verwendung einer Betätigungsstange für das Flüssigkeitsventil diese Stange das Messwerk des Durchflussmessers durchdringt.In the case of the filling element according to the invention, the measuring unit of the flow meter is provided following the liquid valve in the direction of product flow. In particular, this does not require that when using an actuating rod for the liquid valve, this rod penetrates the measuring unit of the flow meter.

Ein weiterer wesentlicher Vorteil der erfindungsgemäßen Ausgestaltung besteht darin, dass die Betätigungsstange welche erfindungsgemäß nicht durch das Meßwerk des Durchflussmessers hindurchreicht, die Genauigkeit der Messergebnisse nicht negativ beeinflussen kann. So haben z.B. im Vergleich zwischen einzelnen Betätigungsstangen auftretende Kontur- oder Volumenabweichungen keinen schädigenden Einfluss.Another significant advantage of the embodiment according to the invention is that the actuating rod which according to the invention does not pass through the measuring mechanism of the flow meter, can not adversely affect the accuracy of the measurement results. Thus, e.g. In comparison between individual actuating rods occurring contour or volume deviations no harmful effect.

Weitere Vorteile des erfindungsgemäßen Füllelementes, bei dem der Durchflussmesser ebenfalls nicht extern, sondern im jedem Füllelement integriert vorgesehen ist, sind u.a., dass bei einem volumengesteuerten Füllen eine besonders kompakte Bauweise für die Füllmaschine insgesamt erreicht ist und außerdem die Anzahl der im Flüssigkeits- oder Füllgutkanal zwischen dem Vorratsbehälter oder Kessel und der Abgabeöffnung des jeweiligen Füllelementes vorhandenen, abzudichtenden Übergänge reduziert werden kann.Other advantages of the filling element according to the invention, in which the flow meter is also not provided externally, but integrated in each filling element, include, that in a volume-controlled filling a particularly compact design for the filling machine is achieved and also the number of liquid or Füllgutkanal between the reservoir or boiler and the discharge opening of the respective filling element existing, sealed transitions can be reduced.

Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche. Die Erfindung wird im Folgenden anhand der Figuren an einem Ausführungsbeispiel erläutert. Es zeigen:

Fig. 1
in vereinfachter Darstellung und im Schnitt ein Füllelement einer Füllmaschine umlaufender Bauart für ein druckloses Freistrahlfüllen von Flaschen mit einem flüssigen Füllgut, bei geöffnetem Flüssigkeitsventil;
Fig. 2
eine Darstellung wie Figur 1, jedoch bei geschlossenem Flüssigkeitsventil.
Further developments of the invention are the subject of the dependent claims. The invention will be explained below with reference to the figures of an embodiment. Show it:
Fig. 1
in a simplified representation and in section, a filling element of a filling machine of rotating design for a pressureless free jet filling of bottles with a liquid product, with the liquid valve open;
Fig. 2
a representation like FIG. 1 , but with the liquid valve closed.

In den Figuren ist 1 ein Füllelement zum drucklosen Abfüllen eines flüssigen Füllgutes in Behälter, d.h. in Flaschen 2, und zwar zum Freistrahlfüllen, bei dem jeweils die zu füllende Flasche 2 mit ihrer Flaschenmündung 2.1 mit Abstand, aber zentriert unter dem Füllelement 1 angeordnet ist und das flüssige Füllgut als freier Strahl 3 der Flasche 2 zugeführt wird. Das Füllelement 1 ist zusammen mit einer Vielzahl gleichartiger Füllelemente am Umfang eines um eine vertikale Maschinenachse umlaufend antreibbaren Rotors vorgesehen, von dem in den Figuren 1 und 2 lediglich ein Kessel 4 für das flüssige Füllgut sowie ein Behälter- oder Flaschenträger 5 dargestellt sind, an dem die jeweilige, bei der dargestellten Ausführungsform als PET-Flasche ausgeführte Flasche 2 während des Füllprozesses an einem überstehenden Flansch 2.2 hängend gehalten ist.In the figures, 1 is a filling element for pressureless filling of a liquid filling material in containers, ie in bottles 2, for free jet filling, in each of which is to be filled bottle 2 with its mouth of the bottle 2.1 at a distance, but centered under the filling element 1 is arranged the liquid product is supplied as a free jet 3 of the bottle 2. The filling element 1 is provided together with a plurality of similar filling elements on the circumference of a rotatable about a vertical axis of the machine rotor, from which in the FIGS. 1 and 2 only a boiler 4 for the liquid product and a container or bottle carrier 5 are shown, on which the respective, executed in the illustrated embodiment as a PET bottle 2 bottle is held suspended during the filling process to a protruding flange 2.2.

Der Innenraum des Kessels 4 ist niveaugesteuert mit dem flüssigen Füllgut teilgefüllt, sodass über dem Niveau N des Füllgutspiegels ein von Luft und/oder einem Inertgas mit Atmosphärendruck eingenommener Gasraum 4.1 und unterhalb des Niveaus N ein von dem Füllgut eingenommener Flüssigkeitsraum 4.2 gebildet sind.The interior of the boiler 4 is part-filled with the liquid contents partially filled, so that above the level N of Füllgutspiegels occupied by air and / or an inert gas at atmospheric pressure gas space 4.1 and below the level N is occupied by the contents occupied liquid space 4.2.

Das Füllelement 1 besteht aus einem Füllelementgehäuse 6, welches bei der dargestellten Ausführungsform in der nachstehend noch näher beschriebenen Weise dreiteilig ausgeführt und in dem der übliche Flüssigkeitskanal 7 ausgebildet ist, der mit seinem in den Figuren 1 und 2 oberen Ende bzw. mit einem dortigen Anschluss 7.1 unmittelbar in den Flüssigkeitsraum 4.2 mündet und an seinem in den Figuren unteren Ende eine Abgabeöffnung 8 bildet. In dem Flüssigkeitskanal 7 ist in üblicher Weise das Flüssigkeitsventil 9 angeordnet, welches im Wesentlichen aus einem mit einem Ventilsitz im Flüssigkeitskanal 7 zusammenwirkenden Ventilkörper 10 besteht, der an dem in den Figuren 1 und 2 unteren Ende einer Betätigungsstange 11 vorgesehen ist. Diese ist von einer bei der dargestellten Ausführungsform oberhalb des Kessels 4 vorgesehene Betätigungseinrichtung 12, beispielsweise von einer pneumatischen Kolben-Zylinder-Anordnung mit einem für das Öffnen und Schließen des Flüssigkeitsventils 9 notwendigen Axialhub bewegbar ist. Bei der dargestellten Ausführungsform ist die Betätigungsstange 11, die z.B. einen kreisrunden Aussenquerschnitt aufweist, in vertikaler Richtung orientiert und definiert mit ihrer Achse die vertikale Füllelementachse FA.The filling element 1 consists of a Füllelementgehäuse 6, which in the illustrated embodiment in the manner described in more detail below in three parts and in which the usual liquid channel 7 is formed, with its in the FIGS. 1 and 2 upper end or with a local connection 7.1 opens directly into the liquid space 4.2 and forms a discharge opening 8 at its lower end in the figures. In the liquid channel 7, the liquid valve 9 is arranged in a conventional manner, which consists essentially of a valve seat with a valve seat in the liquid channel 7 cooperating valve body 10 which at the in the FIGS. 1 and 2 lower end of an actuating rod 11 is provided. This is of a provided in the illustrated embodiment above the boiler 4 actuator 12, for example, by a pneumatic piston-cylinder assembly with a necessary for the opening and closing of the liquid valve 9 Axialhub is movable. In the illustrated embodiment, the actuating rod 11, which has, for example, a circular outer cross-section, oriented in the vertical direction and defines with its axis the vertical Füllelementachse FA.

Achsgleich mit der Achse FA ist bei der dargestellten Ausführungsform, bei der die Füllelemente 1 jeweils unmittelbar an der Unterseite des Kessels 4 vorgesehen sind und sich die Betätigungsstange 11 auch durch den Innenraum des Kessels 4 erstreckt, die Achse des Flüssigkeitskanals 7 orientiert. Um trotz der relativ großen Länge der Betätigungsstange 11 eine Zentrierung dieser Stange sowie des Ventilkörpers 10 zu erreichten, ist im Bereich des unteren Endes der Betätigungsstange 11 ein Zentrierelement 11.1 vorgesehen, welches aber den Fluss des flüssigen Füllgutes nicht behindert. Es versteht sich, dass der Durchmesser des Flüssigkeitskanales 7 größer ist als der Außendurchmesser der Betätigungsstange 11, sodass im Flüssigkeitskanal 7 um die Betätigungsstange 11 ein ringförmiger Strömungsweg für das Füllgut gebildet ist.Axisgleich with the axis FA is in the illustrated embodiment, in which the filling elements 1 are each provided directly on the underside of the boiler 4 and the actuating rod 11 extends through the interior of the boiler 4, the axis of the liquid channel 7 oriented. In order to achieve a centering of this rod and the valve body 10 despite the relatively large length of the actuating rod 11, a centering element 11.1 is provided in the region of the lower end of the actuating rod 11, but which does not hinder the flow of the liquid filling material. It is understood that the diameter of the liquid channel 7 is greater than the outer diameter of the actuating rod 11, so that in the liquid channel 7 to the actuating rod 11, an annular flow path is formed for the filling material.

Wie ausgeführt, besteht das Füllelementgehäuse 6 bei der dargestellten Ausführungsform aus drei Teilen, die in Richtung des Füllgutstroms vom Kessel 4 an die Abgabeöffnung 8 in vertikaler Richtung aneinander anschließen, und zwar aus dem Gehäuseteil 6.1 mit dem Anschluss 7.1, aus dem Gehäuseteil 6.2, welches Bestandteil eines Durchflussmessers 13 ist und den den Messkanal dieses Durchflussmessers 13 bildenden Abschnitt 7.2 des Flüssigkeitskanals 7 aufweist, und aus dem Gehäuseteil 6.3, welches mit seinem flanschartigen Abschnitt 6.3.1 mit der Unterseite des Gehäuseteils 6.2 verbunden ist und in einen rohrförmigen Abschnitt 6.3.2 übergeht, der achsgleich mit der Achse FA angeordnet an seinem unteren Ende die Abgabeöffnung 8 bildet. In Gehäuseteil 6.1 ist auch der Ventilsitz für Ventilkörper 10 des Flüssigkeitsventils 9 gebildet, d.h. in Strömungsrichtung des flüssigen Füllgutes vor dem Gehäuseteil 6.2 bzw. vor dem Durchflussmessers 13. Es versteht sich, dass die Übergänge zwischen dem Kessel 4 und dem Gehäuseteil 6.1 sowie auch zwischen den Gehäuseteilen 6.1 - 6.3 insbesondere im Bereich des sämtliche Gehäuseteile durchdringenden Flüssigkeitskanals 7 mit entsprechenden Dichtungen abgedichtet sind.As stated, the Füllelementgehäuse 6 in the illustrated embodiment of three parts that connect in the direction of Füllgutstrom from the boiler 4 to the discharge opening 8 in the vertical direction, namely from the housing part 6.1 with the terminal 7.1, from the housing part 6.2, which Part of a flow meter 13 and the measuring channel of this flow meter 13 forming section 7.2 of the liquid channel 7, and from the housing part 6.3, which is connected with its flange-like section 6.3.1 to the bottom of the housing part 6.2 and into a tubular section 6.3.2 merges, which coaxially with the axis FA arranged at its lower end, the discharge opening 8 forms. In the housing part 6.1 and the valve seat for valve body 10 of the liquid valve 9 is formed, i. It is understood that the transitions between the boiler 4 and the housing part 6.1 as well as between the housing parts 6.1 - 6.3, in particular in the region of the liquid passage 7 penetrating all housing parts with corresponding Seals are sealed.

Wie ausgeführt, ist das Gehäuseteil 6.2 Bestandteil des Durchflussmessers 13, beispielsweise eines magnetischen, induktiven Durchflussmessers (MID), wobei am dortigen Messkanal bzw. Abschnitt 7.2 die den Füllgutstrom erfassenden Komponenten (Messwerk) des Durchflussmessers 13 vorgesehen sind, nämlich bei einem magnetischen induktiven Durchflussmesser 13 zumindest eine Magnetspule zur Erzeugung eines Magnetfeldes, z.B. eines magnetischen Wechselfeldes im Füllgutstrom sowie wenigstens eine Elektrode zur Messung der durch den Füllgutstrom im Magnetfeld erzeugten und der Durchflussmenge entsprechenden elektrischen Messspannung.As stated, the housing part 6.2 is part of the flow meter 13, for example, a magnetic, inductive flow meter (MID), wherein the local measuring channel or section 7.2, the Füllgutstrom detecting components (measuring unit) of the flow meter 13 are provided, namely in a magnetic inductive flow meter 13 at least one magnetic coil for generating a magnetic field, for example an alternating magnetic field in the product flow and at least one electrode for measuring the generated by the Füllgutstrom in the magnetic field and the flow rate corresponding electrical measurement voltage.

An dem Gehäuseteil 6.2 sind außenliegend in einem Gehäuse 14 die weiteren, elektrischen Komponenten, beispielsweise die Ansteuer- und Messelektronik des Durchflussmessers 13 untergebracht, u.a. zur Ansteuerung der Magnetspule sowie zur Auswertung der Messspannung und zur Bildung eines über eine Anschlussleitung 15 an eine zentrale Steuereinheit (Rechner) der Füllmaschine gelieferten Messsignal.On the housing part 6.2 are outside in a housing 14, the other electrical components, such as the control and measuring electronics of the flow meter 13 housed, u.a. for controlling the magnetic coil and for evaluating the measuring voltage and for forming a measuring signal supplied via a connecting line 15 to a central control unit (computer) of the filling machine.

Der Durchmesser des Flüssigkeitskanals 7 sowie der Außendurchmesser der Betätigungsstange 11 sind im Abschnitt 7.2 konstant sind, sodass sich der Strömungsquerschnitt für das flüssige Füllgut im Messkanal bzw. Abschnitt 7.2 mit dem Hub der Betätigungsstange 11 nicht verändert und eine hohe Messgenauigkeit erreicht wird.The diameter of the liquid channel 7 and the outer diameter of the actuating rod 11 are constant in section 7.2, so that the flow cross section for the liquid product in the measuring channel or section 7.2 does not change with the stroke of the actuating rod 11 and a high measurement accuracy is achieved.

Das Füllen der Flaschen 2 erfolgt mit den Füllelementen 1 bzw. mit der diese Füllelemente 1 aufweisenden Füllmaschine in der von Freistrahl-Füllsystemen mit Volumensteuerung bekannten Weise, d. h. nach dem Einlauf und Positionierung der Flaschen 2 an dem Flaschenträger 5 unterhalb des jeweiligen Füllelementes 1 wird dessen Flüssigkeitsventil 9 für die Einleitung des Füllprozesses geöffnet. Beendet wird der Füllvorgang durch Schließen des Flüssigkeitsventils 9, und zwar gesteuert durch das vom Durchflussmesser 13 gelieferte Signal.The filling of the bottles 2 takes place with the filling elements 1 or with the filling these 1 having filling machine in the manner known from free-jet filling systems with volume control, d. H. after the inlet and positioning of the bottles 2 on the bottle carrier 5 below the respective filling element 1 whose liquid valve 9 is opened for the initiation of the filling process. The filling process is terminated by closing the liquid valve 9, controlled by the signal supplied by the flow meter 13.

Um sicher zu stellen, dass der als magnetischer, induktiver Durchflussmesser ausgebildete Durchflussmesser 13 eindeutige Messergebnisse liefert, insbesondere auch bereits am Beginn des jeweiligen Füllvorgangs oder der jeweiligen Füllphase ist im Abschnitt 6.3.2 bzw. im dortigen Abschnitt 7.3 des Flüssigkeitskanals 7 in der Nähe oder an der Abgabeöffnung 8, auf jeden Fall in Füllgutströmungsrichtung nach dem Gehäuseteil 6.2 bzw. nach dem Durchflussmesser 13 und dessen Messwerk eine Gassperre 16 vorgesehen, die im einfachsten Fall von einem Einsatz mit einer Vielzahl von Öffnungen oder Kanälen, beispielsweise von einem siebartigen Einsatz gebildet ist. Der Querschnitt dieser Öffnungen ist dann so gewählt, dass nach dem Schließen des Flüssigkeitsventils 9 der oberhalb der Gassperre 16 befindliche Teil des Flüssigkeitskanals und damit insbesondere der im Gehäuseteil 6.2 ausgebildete Teil des Flüssigkeitskanals mit dem flüssigen Füllgut gefüllt bleibt, sich dieser Teil des Flüssigkeitskanals zumindest während der im normalen Füllbetrieb auftretenden Zeitintervalle oder Phasen, in denen das jeweilige Flüssigkeitsventil 9 geschlossen ist, nicht entleert. Hierdurch ist gewährleistet, dass bereits am Anfang jeder Füllphase der im Gehäuseteil 6.2 und damit im Messwerk des Durchflussmessers 13 ausgebildete Abschnitt 7.2 des Flüssigkeitskanals mit dem flüssigen Füllgut vollständig oder aber nahezu vollständig gefüllt ist. Hierdurch werden vom Durchflussmesser 13 eindeutige Messsignale bereits am Beginn einer jeden Füllphase geliefert. Um ein Verdrängen des flüssigen Füllgutes aus dem sich an das Flüssigkeitsventil 9 in Füllgutströmungsrichtung anschließenden Teil des Flüssigkeitskanals 7 beim Schließen des Flüssigkeitsventiles 9 bzw. des Ventilkörpers 10 zu vermeiden, ist das Flüssigkeitsventile bei der dargestellten Ausführungsform so ausgebildet, dass es durch Anheben des Ventilkörpers 10 geschlossen und durch Absenken des Ventilkörpers 10 wird.In order to ensure that the designed as a magnetic, inductive flow meter flow meter 13 provides clear results, especially at the beginning of each filling process or the respective filling phase is in section 6.3.2 or in the local section 7.3 of the liquid channel 7 in the vicinity or At the discharge opening 8, in any case in Füllgutströmungsrichtung after the housing part 6.2 and after the flow meter 13 and its measuring a gas barrier 16 is provided, which is formed in the simplest case of an insert with a plurality of openings or channels, for example, from a sieve-like insert , The cross-section of these openings is then chosen so that after closing the liquid valve 9 of the located above the gas barrier 16 part of the liquid channel and thus in particular formed in the housing part 6.2 part of the liquid channel remains filled with the liquid product, this part of the liquid channel at least during the occurring during normal filling operation time intervals or phases in which the respective liquid valve 9 is closed, not emptied. This ensures that already at the beginning of each filling phase formed in the housing part 6.2 and thus in the measuring unit of the flow meter 13 section 7.2 of the liquid channel with the liquid product is completely or almost completely filled. As a result of the flow meter 13 unique measurement signals already at the beginning of each Filling phase delivered. In order to avoid displacement of the liquid filling material from the adjoining the liquid valve 9 in Füllgutströmungsrichtung part of the liquid channel 7 when closing the liquid valve 9 and the valve body 10, the liquid valves in the illustrated embodiment is designed so that it by lifting the valve body 10th closed and by lowering the valve body 10 is.

Die Erfindung wurde voranstehend am Beispiel eines für ein Freistrahlfüllen von Flaschen 2 oder anderen Behältern geeignetes Füllelementes 1 beschrieben. Es versteht sich, dass die besondere Ausbildung des erfindungsgemäßen Füllelementes mit dem Durchflussmesser in Füllgutströmungsrichtung nach dem Flüssigkeitsventil 9 auch bei Füllelementen für andere Füllmethoden mit den angegebenen Vorteilen realisiert werden kann, insbesondere auch bei Füllelementen zum Abfüllen eines flüssigen Füllgutes unter Druck, und zwar bei entsprechender Ausgestaltung des Füllelementes.The invention has been described above using the example of a filling jet 1 suitable for free-jet filling of bottles 2 or other containers. It is understood that the special design of the filling element according to the invention with the flow meter in Füllgutströmungsrichtung after the liquid valve 9 can also be realized with filling elements for other filling methods with the specified advantages, especially with filling elements for filling a liquid filling material under pressure, namely at corresponding Embodiment of the filling element.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Füllelementfiller
22
Flaschebottle
2.12.1
Flaschenmündungbottle mouth
2.22.2
Flansch am FlaschenhalsFlange at the bottleneck
33
FüllgutstrahlFüllgutstrahl
44
Kesselboiler
4.14.1
Gasraumheadspace
4.24.2
Flüssigkeitsraumliquid space
5, 5a5, 5a
Flaschenträgerbottle carrier
66
Füllelementgehäusefilling element
6.1, 6.2, 6.36.1, 6.2, 6.3
Gehäuseteilhousing part
6.3.16.3.1
flanschartiger Abschnittflange-like section
6.3.26.3.2
rohrartiger Abschnitttubular section
77
Flüssigkeitskanalliquid channel
7.17.1
Anschlussconnection
7.27.2
Abschnitt oder MesskanalSection or measuring channel
7.37.3
Abschnitt des Flüssigkeitskanals mit Gassperre 16Section of liquid channel with gas barrier 16
88th
Abgabeöffnungdischarge opening
99
Flüssigkeitsventilliquid valve
1010
Ventilkörpervalve body
1111
Betätigungsstangeactuating rod
11.111.1
Zentrierelement an BetätigungsstangeCentering element on actuating rod
1212
Betätigungselementactuator
1313
DurchflussmesserFlowmeter
1414
Gehäusecasing
1515
Steuerleitungcontrol line
1616
Gassperregas barrier
FAFA
vertikale Füllelementachsevertical filler axis
NN
Flüssigkeitsniveau im Kessel 4Liquid level in the boiler 4

Claims (8)

  1. Filling element for filling bottles (2) or similar containers with a liquid product, with a liquid channel (7) formed in a housing (6) of the filling element (1), said channel forming a connection (7.1) to be connected to a source (4) for the liquid product, as well as an outlet aperture (8) for the outlet of the liquid product to a container (2) which is to be filled, and comprising a liquid valve (9) between the connection (7.1) and the outlet opening (8) with a valve body (10) interacting with a valve seat, which can be moved by an actuating element (12) for opening and closing of the liquid valve (9), and specifically for controlling the filling process as a function of a flowmeter (13), which by means of a measuring mechanism detects the flow volume that is flowing through a section (7.2) of the liquid channel forming a measurement channel, wherein the section (7.2) of the liquid channel (7) forming the measurement channel is provided between the liquid valve (9) and the outlet opening (8), characterised in that a) a gas block (16) is provided between the outlet opening (8) and the section (7.2) of the liquid channel (7) forming the measurement channel, or b) the outlet opening (8) is formed as a gas block (16).
  2. Filling element according to claim 1, characterised in that for opening, the valve body (10) of the liquid valve (9) can be moved in the direction of the outlet opening, and for closing it can be moved in the opposite direction.
  3. Filling element according to claim 1 or 2, characterised by an actuating rod (11) for actuating the valve body (10).
  4. Filling element according to claim 3, characterised in that the filling element (1) can be secured to an underside of a boiler (4) forming the source for the liquid product, and that the actuating plunger (11) is also guided through the interior of the boiler (4) and (1) interacts with the actuating element (12) at the end of the plunger located distant from the filling element.
  5. Filling element according to any one of the preceding claims, characterised in that the actuating element (12) is a pneumatic actuating element.
  6. Filling element according to any one of the preceding claims, characterised in that the plunger is an actuating rod (11).
  7. Filling element according to any one of the preceding claims, characterised in that the liquid channel (7) is formed between the connection (7.1) and the outlet opening (8) in a straight line or an essentially straight line, preferably coaxially with the axis of the plunger (11).
  8. Filling machine of the circulating type, with a plurality of filling elements (1) provided at a rotor which is driven such as to circulate about a machine axis, characterised in that the filling elements are formed in accordance with any one of the preceding claims.
EP07723525.7A 2006-03-24 2007-03-23 Filling element comprising a flowmeter Active EP2001789B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200731827A SI2001789T1 (en) 2006-03-24 2007-03-23 Filling element comprising a flowmeter

Applications Claiming Priority (2)

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DE102006014103A DE102006014103B4 (en) 2006-03-24 2006-03-24 Filling element for filling bottles or the like container with a liquid filling material and filling machine with such filling elements
PCT/EP2007/002574 WO2007110197A1 (en) 2006-03-24 2007-03-23 Filling element comprising a flowmeter

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EP2001789A1 EP2001789A1 (en) 2008-12-17
EP2001789B1 true EP2001789B1 (en) 2016-09-07

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US (1) US8256474B2 (en)
EP (1) EP2001789B1 (en)
JP (1) JP5059846B2 (en)
CN (1) CN101454237B (en)
BR (1) BRPI0709343B1 (en)
DE (1) DE102006014103B4 (en)
MX (1) MX2008012068A (en)
SI (1) SI2001789T1 (en)
WO (1) WO2007110197A1 (en)

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BRPI0709343A2 (en) 2011-07-12
JP2009530197A (en) 2009-08-27
DE102006014103A1 (en) 2007-09-27
EP2001789A1 (en) 2008-12-17
JP5059846B2 (en) 2012-10-31
CN101454237A (en) 2009-06-10
US20090071569A1 (en) 2009-03-19
SI2001789T1 (en) 2016-10-28
CN101454237B (en) 2011-04-27
WO2007110197A1 (en) 2007-10-04
BRPI0709343B1 (en) 2018-10-30
DE102006014103B4 (en) 2008-04-24
MX2008012068A (en) 2008-10-07
US8256474B2 (en) 2012-09-04

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