EP2001789A1 - Filling element comprising a flowmeter - Google Patents

Filling element comprising a flowmeter

Info

Publication number
EP2001789A1
EP2001789A1 EP07723525A EP07723525A EP2001789A1 EP 2001789 A1 EP2001789 A1 EP 2001789A1 EP 07723525 A EP07723525 A EP 07723525A EP 07723525 A EP07723525 A EP 07723525A EP 2001789 A1 EP2001789 A1 EP 2001789A1
Authority
EP
European Patent Office
Prior art keywords
filling
liquid
filling element
element according
discharge opening
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.)
Granted
Application number
EP07723525A
Other languages
German (de)
French (fr)
Other versions
EP2001789B1 (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
Original Assignee
KHS GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by KHS GmbH filed Critical KHS GmbH
Priority to SI200731827A priority Critical patent/SI2001789T1/en
Publication of EP2001789A1 publication Critical patent/EP2001789A1/en
Application granted granted Critical
Publication of EP2001789B1 publication Critical patent/EP2001789B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/20—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
    • B65B3/30—Methods or devices for controlling the quantity of the material fed or filled by volumetric measurement
    • 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 fluid line between a source of the liquid filling material (e.g., reservoir or kettle) and the respective filling element, which provides for the completion of the filling operation, e.g. the closing of the liquid valve induces measuring or control signal to a central control device (computer) of the filling machine.
  • a filling element for filling bottles or similar containers, in which a flow rate of the filling material detected measuring device of a flow meter is provided on the filling element, namely on the formed in the filling liquid channel in the flow direction of a bottle or the like.
  • Container during the filling process flowing liquid filling material (hereinafter also Greesch) in front of the liquid valve.
  • a certain disadvantage here is that, when an operating rod is used to simplify the operation of the liquid valve, this passes through the measuring unit of the flow meter, which u.U. requires the use of special materials for the actuating rod, especially when the flow meter is designed in a particularly simple manner and also very low maintenance as a magnetic, inductive flowmeter (MID).
  • MID magnetic, inductive flowmeter
  • the object of the invention is to show a filling element which allows a volume-controlled filling of bottles or similar containers in a particularly compact and simplified construction of the filling machine.
  • 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.
  • 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, the accuracy of the measurement results can not adversely affect. Thus, e.g. In comparison between individual actuating rods occurring contour or volume deviations no harmful effect.
  • Fig. 2 is a representation as Figure 1, but with the liquid valve closed.
  • 1 is a filling element for pressureless filling of a liquid filling material in containers, ie in bottles 2, for free jet filling, in which each to be filled bottle 2 with its mouth of the bottle 2.1 at a distance, but centered below the filling element 1 is arranged and 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 rotor around a vertical axis rotatable drivable rotor, of which in Figures 1 and 2, only a boiler 4 for the liquid product and a container or bottle carrier 5 are shown, on which the respective , in the illustrated Embodiment designed as a PET bottle bottle 2 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 embodiment shown 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 figures 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 in the liquid channel 7 cooperating valve body 10 which is provided at the lower end of an actuating rod 11 in Figures 1 and 2.
  • the actuating rod 11 e.g. has 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 liquid filling material. It is understood that the diameter of the liquid channel 7 is greater than the outer diameter of the actuating rod 1 1, so that in the liquid channel 7 to the actuating rod 11, an annular flow path is formed for the contents.
  • the Golfelementgeophuse 6 consists in the illustrated embodiment of three parts that connect in the direction of Greins from the boiler 4 to the discharge port 8 in the vertical direction to each other, namely from the housing part 6.1 with the connection 7.1, from the housing part 6.2, which is 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 with its flange-like section 6.3.1 with the Bottom of the housing part 6.2 is connected and merges into a tubular section 6.3.2, which is arranged coaxially with the axis FA arranged at its lower end the discharge opening 8.
  • the housing part 6.1 and the valve seat for valve body 10 of the liquid valve 9 is formed, ie in the flow direction of the liquid filling before the housing part 6.2 or before the flow meter 13. It is understood that the transitions between the boiler 4 and the housing part 6.1 and also between the housing parts 6.1 - 6.3 are sealed in particular in the region of all the housing parts penetrating liquid channel 7 with corresponding seals.
  • the housing part 6.2 is part of the flow meter 13, for example, a magnetic, inductive flowmeter (MID), wherein the local measuring channel or section 7.2, the Gregutstrom 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, eg an alternating magnetic field in the product flow as well as at least one electrode for measuring the electrical measurement voltage generated by the product flow in the magnetic field and corresponding to the flow rate.
  • MID magnetic, inductive flowmeter
  • 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 this filling elements 1 having filling machine in the manner known from free-jet filling systems with volume control, ie after the inlet and positioning of 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.

Landscapes

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

Abstract

The invention relates to a filling element for filling bottles or the like containers with a liquid product, a flowmeter being positioned in the flow path of the product. In order to allow control of the filling process in accordance with a signal produced by the flowmeter, the flowmeter is integrated into the filling element.

Description

FULLELEMENT MIT DURCHFLUSSMENGENMESSERFULL ELEMENT WITH FLOWMETER
Die Erfindung bezieht sich auf ein Füllelement gemäß Oberbegriff Patentanspruch 1 sowie auf eine Füllmaschine umlaufender Bauart gemäß Oberbegriff Patentanspruch 10.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.
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.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 fluid line between a source of the liquid filling material (e.g., reservoir or kettle) and the respective filling element, which provides for the completion of the filling operation, e.g. the closing of the liquid valve induces measuring or control signal to a central control device (computer) of the filling machine.
Vorgeschlagen wurde auch bereits ein Füllelement zum Füllen von Flaschen oder dergleichen Behälter, bei dem ein die Durchflussmenge des Füllgutes erfassendes Messwerk eines Durchflussmessers am Füllelement vorgesehen ist, und zwar an dem im Füllelement ausgebildeten Flüssigkeitskanal in Strömungsrichtung des einer Flasche oder dgl. Behälter während des Füllvorgangs zufließenden flüssigen Füllgutes (nachstehend auch Füllgutströmungsrichtung) vor dem Flüssigkeitsventil. Ein gewisser Nachteil besteht hierbei darin, dass dann, wenn zum vereinfachten Betätigen des Flüssigkeitsventils eine Betätigungsstange verwendet wird, diese durch das Messwerk des Durchflussmessers durchreicht, was u.U. die Verendung spezieller Materialien für die Betätigungsstange erfordert, und zwar speziell dann, wenn der Durchflussmesser in besonders einfacher Weise und auch besonders wartungsarm als magnetischer, induktiver Durchflussmesser (MID) ausgebildet ist.Also proposed has been a filling element for filling bottles or similar containers, in which a flow rate of the filling material detected measuring device of a flow meter is provided on the filling element, namely on the formed in the filling liquid channel in the flow direction of a bottle or the like. Container during the filling process flowing liquid filling material (hereinafter also Füllgutströmungsrichtung) in front of the liquid valve. A certain disadvantage here is that, when an operating rod is used to simplify the operation of the liquid valve, this passes through the measuring unit of the flow meter, which u.U. requires the use of special materials for the actuating rod, especially when the flow meter is designed in a particularly simple manner and also very low maintenance as a magnetic, inductive flowmeter (MID).
Aufgabe der Erfindung ist es, ein Füllelement aufzuzeigen, welches bei einer besonders kompakten und vereinfachten Konstruktion der Füllmaschine ein volumengesteuertes Füllen von Flaschen oder dergleichen Behältern ermöglicht. Zur Lösung dieser Aufgabe ist ein Füllelement entsprechend dem Patentanspruch 1 ausgebildet. Eine Füllmaschine umlaufender Bauart ist Gegenstand des Patentanspruches 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.The object of the invention is to show a filling element which allows a volume-controlled filling of bottles or similar containers in a particularly compact and simplified construction of the filling machine. 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. 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, the accuracy of the measurement results can not adversely affect. 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: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 vereinfachter Darstellung und im Schnitt ein Füllelement einer Füllmaschine umlaufender Bauart für ein druckloses Freistrahlfüllen von Flaschen mit einem flüssigen Füllgut, bei geöffnetem Flüssigkeitsventil;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 eine Darstellung wie Figur 1 , jedoch bei geschlossenem Flüssigkeitsventil.Fig. 2 is a representation as Figure 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 Behälteroder 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 which each to be filled bottle 2 with its mouth of the bottle 2.1 at a distance, but centered below the filling element 1 is arranged and 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 rotor around a vertical axis rotatable drivable rotor, of which in Figures 1 and 2, only a boiler 4 for the liquid product and a container or bottle carrier 5 are shown, on which the respective , in the illustrated Embodiment designed as a PET bottle bottle 2 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 embodiment shown 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 figures 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 in the liquid channel 7 cooperating valve body 10 which is provided at the lower end of an actuating rod 11 in Figures 1 and 2. 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, e.g. has 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 1 1 eine Zentrierung dieser Stange sowie des Ventilkörpers 10 zu erreichen, 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 1 1 , 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 1 1, 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 liquid filling material. It is understood that the diameter of the liquid channel 7 is greater than the outer diameter of the actuating rod 1 1, so that in the liquid channel 7 to the actuating rod 11, an annular flow path is formed for the contents.
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 consists in the illustrated embodiment of three parts that connect in the direction of Füllgutstroms from the boiler 4 to the discharge port 8 in the vertical direction to each other, namely from the housing part 6.1 with the connection 7.1, from the housing part 6.2, which is 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 with its flange-like section 6.3.1 with the Bottom of the housing part 6.2 is connected and merges into a tubular section 6.3.2, which is arranged coaxially with the axis FA arranged at its lower end the discharge opening 8. In the housing part 6.1 and the valve seat for valve body 10 of the liquid valve 9 is formed, ie in the flow direction of the liquid filling before the housing part 6.2 or before the flow meter 13. It is understood that the transitions between the boiler 4 and the housing part 6.1 and also between the housing parts 6.1 - 6.3 are sealed in particular in the region of all the housing parts penetrating liquid channel 7 with corresponding seals.
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 flowmeter (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, eg an alternating magnetic field in the product flow as well as at least one electrode for measuring the electrical measurement voltage generated by the product flow in the magnetic field and corresponding to the flow rate.
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 Flϋssigkeitsventil 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 this filling elements 1 having filling machine in the manner known from free-jet filling systems with volume control, ie after the inlet and positioning of 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 are already delivered at the beginning of each filling phase. 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. BezugszeichenlisteThe 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. LIST OF REFERENCE NUMBERS
1 Füllelement1 filling element
2 Flasche2 bottle
2.1 Flaschenmündung2.1 bottle mouth
2.2 Flansch am Flaschenhals2.2 Flange at the bottleneck
3 Füllgutstrahl3 filling material jet
4 Kessel4 kettles
4.1 Gasraum4.1 gas space
4.2 Flüssigkeitsraum4.2 liquid space
5, 5a Flaschenträger5, 5a bottle carrier
6 Füllelementgehäuse6 filler housing
6.1 , 6.2, 6.3 Gehäuseteil6.1, 6.2, 6.3 Housing part
6.3.1 flanschartiger Abschnitt6.3.1 Flange-type section
6.3.2 rohrartiger Abschnitt6.3.2 tube-like section
7 Flüssigkeitskanal7 fluid channel
7.1 Anschluss7.1 Connection
7.2 Abschnitt oder Messkanal7.2 section or measuring channel
7.3 Abschnitt des Flüssigkeitskanals mit Gassperre 167.3 Section of liquid channel with gas barrier 16
8 Abgabeöffnung8 discharge opening
9 Flüssigkeitsventil9 liquid valve
10 Ventilkörper10 valve body
11 Betätigungsstange11 operating rod
11.1 Zentrierelement an Betätigungsstange11.1 Centering element on actuating rod
12 Betätigungselement12 actuator
13 Durchflussmesser13 flow meters
14 Gehäuse14 housing
15 Steuerleitung15 control line
16 Gassperre16 gas lock
FA vertikale FüllelementachseFA vertical filler axis
N Flüssigkeitsniveau im Kessel 4 N liquid level in the boiler 4

Claims

Patentansprüche claims
1. Füllelement zum Füllen von Flaschen (2) oder dergleichen Behälter mit einem flüssigen Füllgut, mit einem in einem Gehäuse (6) des Füllelementes (1 ) ausgebildeten Flüssigkeitskanal (7), der einen mit einer Quelle (4) für das flüssige Füllgut zu verbindenden Anschluss (7.1) sowie eine Abgabeöffnung (8) für die Abgabe des flüssigen Füllgutes an einen zu füllenden Behälter (2) bildet und zwischen dem Anschluss (7.1 ) und der Abgabeöffnung (8) ein Flüssigkeitsventil (9) mit einem mit einem Ventilsitz zusammenwirkenden Ventilkörper (10) aufweist, der durch ein Betätigungselement (12) für ein Öffnen und Schließen des Flüssigkeitsventils (9) bewegbar ist, und zwar für eine Steuerung des Füllprozesses in Abhängigkeit eines Durchflussmessers (13), der mit einem Messwerk die Durchflussmenge erfasst, die einen einen Messkanal bildenden Abschnitt (7.2) des Flüssigkeitskanals durchströmt, dadurch gekennzeichnet, dass der den Messkanal bildende Abschnitt (7.2) des Flüssigkeitskanals (7) zwischen dem Flüssigkeitsventil (9) und der Abgabeöffnung (8) vorgesehen ist.1. filling element for filling bottles (2) or the like container with a liquid product, with a in a housing (6) of the filling element (1) formed liquid channel (7), the one with a source (4) for the liquid product to connecting port (7.1) and a discharge opening (8) for the delivery of the liquid filling material to a container to be filled (2) and between the port (7.1) and the discharge opening (8) a liquid valve (9) having a cooperating with a valve seat Valve body (10) which is movable by an actuating element (12) for opening and closing the liquid valve (9), for a control of the filling process in response to a flow meter (13) which detects the flow rate with a measuring unit flows through a measuring channel forming a portion (7.2) of the liquid channel, characterized in that the measuring channel forming portion (7.2) of the Fl üssigkeitskanals (7) between the liquid valve (9) and the discharge opening (8) is provided.
2. Füllelement nach Anspruch 1 , dadurch gekennzeichnet, dass zwischen der Abgabeöffnung (8) und dem den Messkanal bildenden Abschnitt (7.2) des Flüssigkeitskanals (7) eine Gassperre (16) vorgesehen ist.2. Filling element according to claim 1, characterized in that between the discharge opening (8) and the measuring channel forming portion (7.2) of the liquid channel (7), a gas barrier (16) is provided.
3. Füllelement nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Abgabeöffnung (8) als Gassperre (16) ausgebildet ist.3. Filling element according to claim 1 or 2, characterized in that the discharge opening (8) is designed as a gas barrier (16).
4. Füllelement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Ventilkörper (10) des Flüssigkeitsventils (9) zum Öffnen in Richtung Abgabeöffnung (8) und zum Schließen in entgegen gesetzter Richtung bewegbar ist.4. Filling element according to one of the preceding claims, characterized in that the valve body (10) of the liquid valve (9) for opening in the direction of the discharge opening (8) and for closing in the opposite direction is movable.
5. Füllelement nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine Betätigungsstange (11 ) zum Betätigen des Ventilkörpers (10).5. Filling element according to one of the preceding claims, characterized by an actuating rod (11) for actuating the valve body (10).
6. Füllelement nach Anspruch 5, dadurch gekennzeichnet, dass das Füllelement (1) an einer Unterseite eines die Quelle für das Füllgut bildenden Kessels (4) befestigbar ist, und dass der Betätigungsstößel (11 ) auch durch den Innenraum des Kessels (4) hindurchgeführt ist und an seinem dem Füllelement (1 ) entfernt liegenden Ende mit dem Betätigungselement (12) zusammenwirkt. 6. Filling element according to claim 5, characterized in that the filling element (1) on an underside of a source for the filling forming vessel (4) can be fastened, and that the actuating plunger (11) also passed through the interior of the boiler (4) is and at its the filling element (1) remote end with the actuating element (12) cooperates.
7. Füllelement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Betätigungselement (12) ein pneumatisches Betätigungselement ist.7. Filling element according to one of the preceding claims, characterized in that the actuating element (12) is a pneumatic actuator.
8. Füllelement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stößel eine Betätigungsstange (11 ) ist.8. Filling element according to one of the preceding claims, characterized in that the plunger is an actuating rod (11).
9. Füllelement nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Flüssigkeitskanal (7) zwischen dem Anschluss (7.1 ) und der Abgabeöffnung (8) geradlinig oder im Wesentlichen geradlinig, vorzugsweise achsgleich mit der Achse des Stößels (11 ) ausgebildet ist.9. Filling element according to one of the preceding claims, characterized in that the liquid channel (7) between the terminal (7.1) and the discharge opening (8) is rectilinear or substantially rectilinear, preferably coaxially with the axis of the plunger (11).
10. Füllmaschine umlaufender Bauart, mit mehreren an einem um eine Maschinenachse umlaufend antreibbaren Rotor vorgesehenen Füllelementen (1 ), dadurch gekennzeichnet, dass die Füllelemente entsprechend einem der vorhergehenden Ansprüche ausgebildet sind. 10. A filling machine of circumferential design, with a plurality of provided on a circumferentially driven around a machine axis rotor rotatable filling elements (1), characterized in that the filling elements are formed according to one of the preceding claims.
EP07723525.7A 2006-03-24 2007-03-23 Filling element comprising a flowmeter Active EP2001789B1 (en)

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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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CN (1) CN101454237B (en)
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US8256474B2 (en) 2012-09-04
DE102006014103B4 (en) 2008-04-24
DE102006014103A1 (en) 2007-09-27
BRPI0709343A2 (en) 2011-07-12
CN101454237B (en) 2011-04-27
CN101454237A (en) 2009-06-10
MX2008012068A (en) 2008-10-07
BRPI0709343B1 (en) 2018-10-30
SI2001789T1 (en) 2016-10-28
US20090071569A1 (en) 2009-03-19
WO2007110197A1 (en) 2007-10-04
JP5059846B2 (en) 2012-10-31
JP2009530197A (en) 2009-08-27
EP2001789B1 (en) 2016-09-07

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