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EP1940726B1 - Method for safe filling in valve-controlled filling systems - Google Patents

Method for safe filling in valve-controlled filling systems Download PDF

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Publication number
EP1940726B1
EP1940726B1 EP06807359A EP06807359A EP1940726B1 EP 1940726 B1 EP1940726 B1 EP 1940726B1 EP 06807359 A EP06807359 A EP 06807359A EP 06807359 A EP06807359 A EP 06807359A EP 1940726 B1 EP1940726 B1 EP 1940726B1
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EP
European Patent Office
Prior art keywords
filling
batching
valve
time
product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
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EP06807359A
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German (de)
French (fr)
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EP1940726A1 (en
Inventor
Rüdiger SETTELMEYER
Richard Heyne
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Endress and Hauser Process Solutions AG
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Endress and Hauser Process Solutions AG
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Publication of EP1940726A1 publication Critical patent/EP1940726A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67C—CLEANING, FILLING WITH LIQUIDS OR SEMILIQUIDS, OR EMPTYING, OF BOTTLES, JARS, CANS, CASKS, BARRELS, OR SIMILAR CONTAINERS, NOT OTHERWISE PROVIDED FOR; FUNNELS
    • B67C3/00—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus; Filling casks or barrels with liquids or semiliquids
    • B67C3/02—Bottling liquids or semiliquids; Filling jars or cans with liquids or semiliquids using bottling or like apparatus
    • B67C3/22—Details
    • B67C3/28—Flow-control devices, e.g. using valves
    • B67C3/287—Flow-control devices, e.g. using valves related to flow control using predetermined or real-time calculated parameters
    • 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

Definitions

  • the invention relates to a method for safe filling valve-controlled filling systems according to the preamble of claim 1 and as from DE 101 49 473 A1 known.
  • Valve-controlled filling systems are used in various industrial sectors to fill liquid products into special containers, usually bottles.
  • the problem here is often the foaming during the filling process. If the filling product is a soapy liquid, for example hair shampoo, the foaming caused by air bubbles during filling can easily cause the shampoo bottle to overflow during the filling process. Such spillover at a single filling station can result in the stoppage of the entire bottling plant. Depending on the amount of product overflow, extensive cleaning measures are necessary.
  • the amount of product to be filled in each filling process is often measured with flowmeters (eg Dosimass, Dosimag from Endress + Hauser) and adjusted via a dosing control.
  • flowmeters eg Dosimass, Dosimag from Endress + Hauser
  • the object of the invention is to provide a method for safe filling in valve-controlled filling systems, which does not have the disadvantages mentioned above, in particular reliably prevents the overflow during the filling process due to bubble formation and which is easy and inexpensive to implement.
  • the essential idea of the invention is that the formation of air bubbles in the filling product, which cause the overflow during the filling process, quickly and easily by the evaluation of multiple flow values D (ti), at times when there should be a constant flow at the filling station concerned detect.
  • the flow meters may, for. B. Coriolis or magnetic inductive flow meters.
  • the invention is particularly suitable for fast filling operations in which the time between opening and closing of the filling valve is less than 1-5 seconds.
  • the pulses which are output at the pulse output of the flowmeters are used to determine the current flow value.
  • Fig. 1 typical bottling plant in a schematic representation
  • Fig. 2 Filling curve at a filling station of the filling plants
  • FIG. 3 simplified filling curve after Fig. 2
  • Fig. 1 is a typical bottling plant as used in various industries.
  • the liquid filling product P (hair shampoo) is provided in a storage container 40.
  • the reservoir 40 is connected via a central supply line 50 with the individual filling stations ap which are designated as line 1 to line 16. For clarity, only two filling station a and p are provided with reference numerals.
  • Each filling station has a flow meter 52 and a filling valve 54. Via valve tips 56, the filling product AP is filled into the filling container 60, here shampoo bottles.
  • the filling containers 60a to 60p together are guided via a conveyor belt 70 to the individual filling stations.
  • the flow measuring devices 52 and the filling valves 54 are connected to a dosing control unit 10 via signal lines, 16 control signal lines SSL1-SSL16 and 16 measuring signal lines MSL1-MSL16.
  • the metering control unit 10 is constructed in a modular manner. It consists of a power supply unit, a central processing unit, Profibus DP slave unit, a digital pulse input unit (16-fold), a digital pulse output unit (16-fold 24V, 0.5 A) and a 4-20 mA - Unit (4-way AI, 2-fold AO)
  • the metering control unit 10 is connected to a central controller 20.
  • the communication between the Dosier horrungsaku 10 and the central controller 20 is carried out according to the Profibus DP standard, the Dosier horrungsaku 10 acts as a Profibus DP slave and the controller 20 as a Profibus DP master.
  • the controller 20 controls the entire supply and discharge of the filling container 60 to the individual filling stations a-p. The entire filling cycle for every 16 filling containers takes about 5 seconds.
  • the metering control unit 10 is further connected to a local display unit 30, which is designed as a touchscreen, via which the configuration of the bottling plant takes place.
  • Constant filling conditions are only obtained if the top pressure KP in the feed tank 40 is kept constant.
  • a pressure gauge 46 is provided on the reservoir 40, which measures the head pressure KP in the container 40. Via a compressed air supply line 42, in which a valve 44 is provided, the head pressure KP can be adjusted. The corresponding control of the head pressure also takes place via the metering control unit 10.
  • the current head pressure is transmitted as a 4-20 mA signal via the measurement signal line MSL 17 to the metering control unit 10.
  • the valve 44 is actuated by the metering control unit 10 in order to thereby keep the head pressure KP in the container 40 constant.
  • Fig. 2 is a filling curve as it typically occurs at each of the filling stations ap.
  • the flow rate at one of the filling tips is plotted as a function of time.
  • the desired filling quantity F is predetermined during the start-up of the filling installation and stored in the metering control unit 10. According to the Filling capacity F, the filling valve is activated at each filling station.
  • T2 filling valve 54a is fully open.
  • T3 command from the dosing control unit 10 to the filling valve 54a Close valve, since the filling amount is achieved in consideration of the follow-up amount.
  • T4 filling valve 54a is closed.
  • the filling quantity F of the filling product AP filled into the filling container 60 corresponds in principle to the area under the curve between the times T 1 and T 4 (about 0.5 sec).
  • Fig. 3 is the filling curve according to Fig. 2 once more simplified.
  • the flow remains approximately constant between times T2 and T3.
  • This time range is divided into several time intervals t1 to tn.
  • the entire filling process takes less than 1 second.
  • the length of the time intervals t1 to tn can be selected between approximately 10-100 msec.
  • the current flow value D (t i ) can be specified.
  • the values D (t i ) are checked for significant deviations. If a significant change is detected, the valve 44 is closed at the respective filling station before the time T3. Significant deviations usually indicate foaming. By closing the respective filling valve overflow of the filling container is avoided.
  • the invention assumes that between the times T2 and T3, the flow rate is approximately constant.
  • the mean value of the flow in this time range can be obtained, for example, with a moving averaging from the values D (t i ).
  • the tolerance limit is approx. +/- 5%. It is application-specific adjustable.
  • the inventive method is characterized mainly by its simplicity and by its speed. With the method according to the invention a safe filling is possible even with foaming filling products and fast filling operations.
  • Table 1 filling stations A-P filling line Line 1 Line16 bottling plant 1 Dosier horrungsaku 10 control 20 bus line 22 display unit 30 storage container 40 Compressed air supply 42 Valve 44 pressure gauge 46 Compressed air supply 50 Flowmeter 52a - 52p filling valve 54a - 54p filling tips 56a - 56p Filling container (shampoo bottle) 60a - 60p conveyor belt 70

Landscapes

  • Basic Packing Technique (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Flow Control (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • Packaging Of Special Articles (AREA)

Abstract

A method for the safe filling of a product in valve-controlled filling systems having, at individual filling stations, flow measuring devices for determining the amount of filling of the product being filled, a flow value D(ti) is determined for a number of time intervals at opened filling valve and checked for significant deviations brought about by air bubble formation in the product being filled. If significant deviations occur, then the pertinent filling valve is closed prematurely.

Description

Die Erfindung betrifft ein Verfahren zum sicheren Abfüllen bei ventilgesteuerten Abfüllanlagen gemäß dem Oberbegriff des Anspruchs 1 und wie aus der DE 101 49 473 A1 bekannt.The invention relates to a method for safe filling valve-controlled filling systems according to the preamble of claim 1 and as from DE 101 49 473 A1 known.

In verschiedenen Industriebereichen werden ventilgesteuerte Abfüllanlagen eingesetzt, um flüssige Produkte in spezielle Behälter, meist Flaschen, abzufüllen. Problematisch hierbei ist häufig die Schaumbildung beim Abfüllprozess. Handelt es sich bei dem Abfüllprodukt um eine seifige Flüssigkeit, zum Beispiel Haarshampoo, so kann die Schaumbildung, die durch Luftblasen beim Abfüllen verursacht wird, leicht ein Überlaufen der Shampooflasche beim Abfüllvorgang bewirken. Ein solches Überlaufen an einer einzelnen Abfüllstation kann den Stillstand der gesamten Abfüllanlage nach sich ziehen. Je nach dem, welche Menge des Produkts übergelaufen ist, sind umfangreiche Reinigungsmaßnahmen notwendig.Valve-controlled filling systems are used in various industrial sectors to fill liquid products into special containers, usually bottles. The problem here is often the foaming during the filling process. If the filling product is a soapy liquid, for example hair shampoo, the foaming caused by air bubbles during filling can easily cause the shampoo bottle to overflow during the filling process. Such spillover at a single filling station can result in the stoppage of the entire bottling plant. Depending on the amount of product overflow, extensive cleaning measures are necessary.

Die Menge des Produktes, die bei jedem Abfüllvorgang abgefüllt werden soll, wird häufig mit Durchflussmessgeräten (z. B. Dosimass, Dosimag der Fa. Endress+Hauser) gemessen und über eine Dosiersteuerung eingestellt.The amount of product to be filled in each filling process is often measured with flowmeters (eg Dosimass, Dosimag from Endress + Hauser) and adjusted via a dosing control.

Treten beim Abfüllvorgang Luftblasen auf, so ist die Durchflussmessung je nach Messprinzip mehr oder weniger gestört. Die vom entsprechenden Messgerät gelieferten Durchflusswerte weichen vom tatsächlich vorhandenen Durchfluss ab. Bei Coriolis-Massedurchflussmessgeräten und bei magnetisch-induktiven Durchflussmessgeräten sind aufwendige Verfahren zur Luftblasenerkennung bekannt. Aufgrund der komplizierten Auswerteverfahren dauert es eine gewisse Zeit, bis das Gerät eine Luftblasenbildung erkennt und diese z. B. an seinem Statusausgang anzeigt. Für schnelle Abfüllvorgänge, mit Abfüllzeiten unter einer Sekunde, sind solche Verfahren nicht geeignet.If air bubbles occur during the filling process, the flow measurement is more or less disturbed depending on the measuring principle. The flow rates provided by the meter differ from the actual flow rate. With Coriolis mass flowmeters and magnetic-inductive flowmeters elaborate methods for bubble detection are known. Due to the complicated evaluation process, it takes some time until the device detects an air bubble formation and this z. B. at its status output. For fast filling operations, with filling times under one second, such methods are not suitable.

Die Aufgabe der Erfindung besteht deshalb darin, ein Verfahren zum sicheren Abfüllen bei ventilgesteuerten Abfüllanlagen anzugeben, das die oben genannten Nachteile nicht aufweist, das insbesondere das Überlaufen während des Abfüllprozesses aufgrund von Luftblasenbildung sicher verhindert und das einfach und kostengünstig realisierbar ist.The object of the invention is to provide a method for safe filling in valve-controlled filling systems, which does not have the disadvantages mentioned above, in particular reliably prevents the overflow during the filling process due to bubble formation and which is easy and inexpensive to implement.

Gelöst wird diese Aufgabe durch die im Anspruch 1 angegebenen Merkmale.This object is achieved by the features specified in claim 1.

Die wesentliche Idee der Erfindung besteht darin, die Bildung von Luftblasen im Abfüllprodukt, die das Überlaufen beim Abfüllvorgang verursachen, schnell und einfach durch die Auswertung mehrere Durchflusswerte D(ti), zu Zeiten zu denen ein konstanter Durchfluss an der betreffenden Abfüllstation herrschen sollte, zu erkennen.The essential idea of the invention is that the formation of air bubbles in the filling product, which cause the overflow during the filling process, quickly and easily by the evaluation of multiple flow values D (ti), at times when there should be a constant flow at the filling station concerned detect.

Falls signifikante Abweichungen im Durchfluss festgestellt werden, wird das betreffende Abfüllventil vorzeitig geschlossen.If significant flow deviations are detected, the fill valve in question is closed prematurely.

Vorteilhafte Weiterentwicklungen der Erfindung sind in den Unteransprüchen angegeben.Advantageous developments of the invention are specified in the subclaims.

Bei den Durchflussmessgeräten kann es sich z. B. um Coriolis- bzw. magnetischinduktive Durchflussmessgeräte handeln.The flow meters may, for. B. Coriolis or magnetic inductive flow meters.

Die Erfindung eignet sich besonders für schnelle Abfüllvorgänge, bei denen die Zeitdauer zwischen dem Öffnen und Schließen des Abfüllventils unter 1-5 Sekunden liegt.The invention is particularly suitable for fast filling operations in which the time between opening and closing of the filling valve is less than 1-5 seconds.

In einer Weiterentwicklung der Erfindung werden die Impulse, die am Impulsausgang der Durchflussmessgeräte ausgegeben werden, zur Bestimmung des aktuellen Durchflusswertes genommen.In a further development of the invention, the pulses which are output at the pulse output of the flowmeters are used to determine the current flow value.

Nachfolgend ist die Erfindung anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert.The invention is explained in more detail with reference to an embodiment shown in the drawing.

Es zeigen:Show it:

Fig. 1 typische Abfüllanlage in schematischer Darstellung; Fig. 1 typical bottling plant in a schematic representation;

Fig. 2 Abfüllkurve an einer Abfüllstation der Abfüllanlagen; Fig. 2 Filling curve at a filling station of the filling plants;

Fig. 3 vereinfachte Abfüllkurve nach Fig. 2 Fig. 3 simplified filling curve after Fig. 2

In Fig. 1 ist eine typische Abfüllanlage, wie sie in verschiedenen Industriebereichen eingesetzt wird, dargestellt. Das flüssige Abfüllprodukt P (Haarshampoo) wird in einem Vorlagebehälter 40 bereitgestellt. Der Vorlagebehälter 40 ist über eine zentrale Zufuhrleitung 50 mit den einzelnen Abfüllstationen a-p die als Linie 1 bis Linie 16 bezeichnet sind, verbunden. Der Übersichtlichkeit halber sind nur zwei Abfüllstation a und p mit Bezugszeichen versehen. Jede Abfüllstation weist ein Durchflussmessgerät 52 und ein Abfüllventil 54 auf. Über Ventilspitzen 56 wird das Abfüllprodukt AP in die Abfüllbehälter 60, hier Shampooflaschen, eingefüllt. Die Abfüllbehälter 60a bis 60p gemeinsam werden über ein Transportband 70 zu den einzelnen Abfüllstationen geführt. Die Durchflussmessgeräte 52 und die Abfüllventile 54 sind über Signalleitungen, 16 Steuersignalleitungen SSL1-SSL16 und 16 Messsignalleitungen MSL1-MSL16, mit einer Dosiersteuerungseinheit 10 verbunden.In Fig. 1 is a typical bottling plant as used in various industries. The liquid filling product P (hair shampoo) is provided in a storage container 40. The reservoir 40 is connected via a central supply line 50 with the individual filling stations ap which are designated as line 1 to line 16. For clarity, only two filling station a and p are provided with reference numerals. Each filling station has a flow meter 52 and a filling valve 54. Via valve tips 56, the filling product AP is filled into the filling container 60, here shampoo bottles. The filling containers 60a to 60p together are guided via a conveyor belt 70 to the individual filling stations. The flow measuring devices 52 and the filling valves 54 are connected to a dosing control unit 10 via signal lines, 16 control signal lines SSL1-SSL16 and 16 measuring signal lines MSL1-MSL16.

Die Dosiersteuerungseinheit 10 ist modulartig aufgebaut. Sie besteht aus einem Netzteil, einer zentralen Recheneinheit, Profibus DP Slave-Einheit, einer digitalen Impuls-Eingangs-Einheit (16 fach), einer digitalen Impuls-Ausgangseinheit (16-fach 24V, 0,5 A) und einer 4-20 mA- Einheit (4-fach AI, 2-fach AO)The metering control unit 10 is constructed in a modular manner. It consists of a power supply unit, a central processing unit, Profibus DP slave unit, a digital pulse input unit (16-fold), a digital pulse output unit (16-fold 24V, 0.5 A) and a 4-20 mA - Unit (4-way AI, 2-fold AO)

Über eine Busverbindungsleitung 22 ist die Dosiersteuerungseinheit 10 mit einer zentralen Steuerung 20 verbunden. Die Kommunikation zwischen der Dosiersteuerungseinheit 10 und der zentralen Steuerung 20 erfolgt nach dem Profibus DP Standard, wobei die Dosiersteuerungseinheit 10 als Profibus DP Slave und die Steuerung 20 als Profibus DP Master fungiert. Die Steuerung 20 steuert die gesamte Zuführung und Abfuhr der Abfüllbehälter 60 zu den einzelnen Abfüllstationen a-p. Der gesamte Abfüllzyklus für jeweils 16 Abfüllbehälter dauert ca. 5 Sekunden.Via a bus connection line 22, the metering control unit 10 is connected to a central controller 20. The communication between the Dosiersteuerungseinheit 10 and the central controller 20 is carried out according to the Profibus DP standard, the Dosiersteuerungseinheit 10 acts as a Profibus DP slave and the controller 20 as a Profibus DP master. The controller 20 controls the entire supply and discharge of the filling container 60 to the individual filling stations a-p. The entire filling cycle for every 16 filling containers takes about 5 seconds.

Die Dosiersteuerungseinheit 10 ist weiterhin mit einer lokalen Anzeigeeinheit 30, die als Touchscreen ausgebildet ist, verbunden über die die Konfigurierung der Abfüllanlage erfolgt.The metering control unit 10 is further connected to a local display unit 30, which is designed as a touchscreen, via which the configuration of the bottling plant takes place.

Konstante Abfüllbedingungen erhält man nur, wenn der Kopfdruck KP im Vorlagebehälter 40 konstant gehalten wird. Hierfür ist ein Druckmesser 46 am Vorlagebehälter 40 vorgesehen, der den Kopfdruck KP im Behälter 40 misst. Über eine Druckluft-Zufuhrleitung 42, in der ein Ventil 44 vorgesehen ist, kann der Kopfdruck KP eingestellt werden. Die entsprechende Regelung des Kopfdrucks erfolgt ebenfalls über die Dosiersteuerungseinheit 10. Hierfür wird der aktuelle Kopfdruck als 4-20 mA-Signal über die Messsignalleitung MSL 17 an die Dosiersteuerungseinheit 10 übertragen. Über die Steuerungssignalleitung SSL17 wird das Ventil 44 von der Dosiersteuereinheit 10 entsprechend angesteuert, um dadurch den Kopfdruck KP im Behälter 40 konstant zu halten.Constant filling conditions are only obtained if the top pressure KP in the feed tank 40 is kept constant. For this purpose, a pressure gauge 46 is provided on the reservoir 40, which measures the head pressure KP in the container 40. Via a compressed air supply line 42, in which a valve 44 is provided, the head pressure KP can be adjusted. The corresponding control of the head pressure also takes place via the metering control unit 10. For this purpose, the current head pressure is transmitted as a 4-20 mA signal via the measurement signal line MSL 17 to the metering control unit 10. Via the control signal line SSL17, the valve 44 is actuated by the metering control unit 10 in order to thereby keep the head pressure KP in the container 40 constant.

In Fig. 2 ist eine Abfüllkurve, wie sie an jeder der Abfüllstationen a-p typischerweise auftritt, dargestellt. Aufgetragen ist die Durchflussmenge an einer der Abfüllspitzen in Abhängigkeit von der Zeit.In Fig. 2 is a filling curve as it typically occurs at each of the filling stations ap. The flow rate at one of the filling tips is plotted as a function of time.

Die gewünschte Füllmenge F wird bei der Inbetriebnahme der Abfüllanlage vorgegeben und in der Dosiersteuerungseinheit 10 abgespeichert. Entsprechend der Füllmenge F wird das Abfüllventil an jeder einzelnen Abfüllstation angesteuert.The desired filling quantity F is predetermined during the start-up of the filling installation and stored in the metering control unit 10. According to the Filling capacity F, the filling valve is activated at each filling station.

Die in der Zeichnung dargestellten gestrichelten Linien kennzeichnen folgende Zeitpunkte: T1 Befehl von der Dosiersteuereinheit 10 an das Abfüllventil 54a Ventil öffnen. T2 Abfüllventil 54a ist vollständig geöffnet. T3 Befehl von der Dosiersteuereinheit 10 an das Abfüllventil 54a Ventil schließen, da die Abfüllmenge unter Berücksichtigung der Nachlaufmenge erreicht ist. T4 Abfüllventil 54a ist geschlossen. Die in den Abfüllbehälter 60 abgefüllte Füllmenge F des Abfüllprodukts AP entspricht im Prinzip der Fläche unter der Kurve zwischen den Zeitpunkten T 1 und T4 (ca. 0.5 sec)The dashed lines shown in the drawing indicate the following times: T1 command from the dosing control unit 10 to the filling valve 54a valve open. T2 filling valve 54a is fully open. T3 command from the dosing control unit 10 to the filling valve 54a Close valve, since the filling amount is achieved in consideration of the follow-up amount. T4 filling valve 54a is closed. The filling quantity F of the filling product AP filled into the filling container 60 corresponds in principle to the area under the curve between the times T 1 and T 4 (about 0.5 sec).

Es findet natürlich keine mathematische Integration der Abfüllkurve in der Dosiersteuerungseinheit 10 statt. Es werden einfach die Impulswerte, die das Durchflussmessgerät an seinem Impulsausgang liefert, aufaddiert. Wird ein bestimmter Grenzwert, der Füllmenge F minus der Nachlaufmenge entspricht, erreicht, so erfolgt der Schließbefehl an das jeweilige Abfüllventil. Die Nachlaufmenge, d. h. die Menge Abfüllprodukt die nach dem Schließbefehl noch abfließt, ist damit entsprechend berücksichtigt.Of course, there is no mathematical integration of the filling curve in the metering control unit 10. It simply adds up the pulse values that the flowmeter delivers at its pulse output. If a certain limit value, the filling amount F minus the follow-up amount is reached, then the closing command to the respective filling valve. The follow-up quantity, d. H. the amount of filling product that still flows after the closing command is thus taken into account accordingly.

Wie aus Fig. 2 ersichtlich, ist der Durchfluss zwischen den Zeitpunkten T2 und T3 in denen das Abfüllventil vdlig geöffnet ist, relativ konstant. In diesem Zeitbereich erfolgt die Anwendung des erfindungsgemäßen Verfahrens.How out Fig. 2 As can be seen, the flow is relatively constant between the times T2 and T3 in which the filling valve is open vdlig. In this time range, the application of the method according to the invention takes place.

In Fig. 3 ist die Abfüllkurve gemäß Fig. 2 noch einmal stark vereinfacht dargestellt. Für das erfindungsgemäße Verfahren geht man davon aus, dass der Durchfluss zwischen den Zeitpunkten T2 und T3 etwa konstant bleibt. Dieser Zeitbereich wird in mehrere Zeitintervalle t1 bis tn unterteilt. Der gesamte Abfüllvorgang dauert weniger als 1 Sekunde. Die Länge der Zeitintervalle t1 bis tn ist zwischen ca. 10-100 msec wählbar. Für jedes Zeitintervall ti kann der aktuelle Durchflusswert D (ti) angegeben werden. Die Summe aller Durchflusswerte D (ti) für i= 1 bis n ergibt die Abfüllmenge F. Die Werte D (ti) werden auf signifikante Abweichungen überprüft. Wird eine signifikante Änderung festgestellt, so wird das Ventil 44 an der betreffenden Abfüllstation vor dem Zeitpunkt T3 geschlossen. Signifikante Abweichungen deuten in der Regel auf Schaumbildung hin. Durch ein Schließen des betreffenden Abfüllventils wird ein Überlaufen des Abfüllbehälters vermieden.In Fig. 3 is the filling curve according to Fig. 2 once more simplified. For the method according to the invention, it is assumed that the flow remains approximately constant between times T2 and T3. This time range is divided into several time intervals t1 to tn. The entire filling process takes less than 1 second. The length of the time intervals t1 to tn can be selected between approximately 10-100 msec. For each time interval ti, the current flow value D (t i ) can be specified. The sum of all flow values D (t i ) for i = 1 to n gives the filling quantity F. The values D (t i ) are checked for significant deviations. If a significant change is detected, the valve 44 is closed at the respective filling station before the time T3. Significant deviations usually indicate foaming. By closing the respective filling valve overflow of the filling container is avoided.

Die Erfindung geht davon aus, dass zwischen den Zeitpunkten T2 und T3 die Durchflussrate in etwa konstant ist. Der Mittelwert des Durchflusses in diesem Zeitbereich kann zum Beispiel mit einer gleitenden Mittelwertbildung aus den Werten D (ti) gewonnen werden. Die Toleranzgrenze beträgt ca. +/- 5%. Sie ist applikationsspezifisch einstellbar.The invention assumes that between the times T2 and T3, the flow rate is approximately constant. The mean value of the flow in this time range can be obtained, for example, with a moving averaging from the values D (t i ). The tolerance limit is approx. +/- 5%. It is application-specific adjustable.

Da nur die Dosiersteuerungseinheit 10 über die entsprechende Information, in welchen Zeitbereichen mit einem konstanten Durchfluss zu rechnen sein müsste, verfügt, kann diese einfache Luftblasenerkennung nicht von den Durchflussmessgeräten selbst durchgeführt werden.Since only the metering control unit 10 has the corresponding information in which time ranges should be expected with a constant flow, this simple bubble detection can not be performed by the flowmeters themselves.

Das erfindungsgemäße Verfahren zeichnet sich vor allem durch seine Einfachheit und durch seine Schnelligkeit aus. Mit dem erfindungsgemäßen Verfahren ist ein sicheres Abfüllen auch bei schäumenden Abfüllprodukten und schnellen Abfüllvorgängen möglich.The inventive method is characterized mainly by its simplicity and by its speed. With the method according to the invention a safe filling is possible even with foaming filling products and fast filling operations.

Verunreinigungen der Abfüllanlage 1 aufgrund von Überfüllungen werden so sicher vermieden.Contaminations of the filling plant 1 due to overfilling are so safely avoided.

Tabelle 1Table 1 Abfüllstationenfilling stations A-PA-P Abfüllliniefilling line Linie 1- Linie16Line 1 Line16 Abfüllanlagebottling plant 11 DosiersteuerungseinheitDosiersteuerungseinheit 1010 Steuerungcontrol 2020 Busverbindungsleitungbus line 2222 Anzeigeeinheitdisplay unit 3030 Vorlagebehälterstorage container 4040 DruckluftzuführungCompressed air supply 4242 VentilValve 4444 Druckmesserpressure gauge 4646 Druckluft-ZuführleitungCompressed air supply 5050 DurchflussmessgerätFlowmeter 52a - 52p52a - 52p Abfüllventilfilling valve 54a - 54p54a - 54p Abfüllspitzenfilling tips 56a - 56p56a - 56p Abfüllbehälter (Shampooflasche)Filling container (shampoo bottle) 60a - 60p60a - 60p Transportbandconveyor belt 7070

Füllmenge FFilling quantity F

Claims (4)

  1. Method for safely batching a product that forms foam in a valve-controlled bottling plant (1) with multiple batching stations (A-P), with each batching station (A) exhibiting a batching valve (54) for batching and a flowmeter (52) for determining the batching volume of the batched product, whereby the flowmeters (52) and the batching valves are connected to a dosing control unit (10) via signal lines, characterized by the following process steps:
    • A batching valve (54) opens at time T1
    • The flow values D(ti) are determined with the batching valve (54) open as of a time T2 for several time intervals (t1, t2,...tn)
    • The flow values D(ti) are analyzed for significant deviations when the batching valve is open - i.e. in the period between T2 and T3 when a constant flow should be present at the associated batching station - said deviations being caused by air bubbles forming in the batched product
    • The batching valve closes at time T3 if no significant deviations occur in the period between T2 and T3
    • The batching valve closes prematurely at a time T3' ≤ T3 if significant deviations occur so that this prevents a batching container (60) from overflowing.
  2. Method as per one of the previous claims, characterized in that the flowmeters are Coriolis or electromagnetic flowmeters.
  3. Method as per one of the previous claims, characterized in that the time between when the batching valve opens and closes is approximately 1-5 seconds.
  4. Method as per one of the previous claims, characterized in that the current flow value is determined via the pulse values that are output at the pulse output of the flowmeter.
EP06807359A 2005-10-28 2006-10-17 Method for safe filling in valve-controlled filling systems Not-in-force EP1940726B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005052197A DE102005052197A1 (en) 2005-10-28 2005-10-28 Method for safe filling in valve-controlled filling systems
PCT/EP2006/067517 WO2007048742A1 (en) 2005-10-28 2006-10-17 Method for safe filling in valve-controlled filling systems

Publications (2)

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EP1940726A1 EP1940726A1 (en) 2008-07-09
EP1940726B1 true EP1940726B1 (en) 2010-03-24

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US (1) US8220501B2 (en)
EP (1) EP1940726B1 (en)
AT (1) ATE461909T1 (en)
DE (2) DE102005052197A1 (en)
WO (1) WO2007048742A1 (en)

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DE102008016235A1 (en) * 2008-03-27 2009-10-01 Endress + Hauser Flowtec Ag A method of operating a meter disposed on a rotary carousel filling machine
DE102008050116A1 (en) 2008-10-06 2010-04-08 Endress + Hauser Flowtec Ag In-line measuring device
DE102008050115A1 (en) 2008-10-06 2010-04-08 Endress + Hauser Flowtec Ag In-line measuring device
DE102008050113A1 (en) 2008-10-06 2010-04-08 Endress + Hauser Flowtec Ag In-line measuring device
DE102010042624A1 (en) 2010-10-19 2012-04-19 Krones Aktiengesellschaft Method for operating a bottling plant
CN103130170A (en) * 2011-11-23 2013-06-05 四川制药制剂有限公司 Intellectualization remote control liquid medicine filling electronic control system
DE102013100702A1 (en) * 2013-01-24 2014-07-24 Endress + Hauser Process Solutions Ag Control module for controlling filling location in filling system used for filling flowable medium in bottle, has hardware and software testing course of flow in real time during filling cycle, and detecting anomalies in course during cycle
DE102014107364A1 (en) * 2014-05-26 2015-11-26 Endress+Hauser Process Solutions Ag Method for valve-controlled filling
WO2016089986A1 (en) * 2014-12-03 2016-06-09 Spraying Systems Co. System for simultaneously filling a plurality of liquid containing bottles
DE102017124565A1 (en) 2017-10-20 2019-04-25 Endress+Hauser Flowtec Ag Method and device for carrying out a filling process
EP4009009B1 (en) * 2020-12-07 2022-09-14 Sick Ag Control of a bottling process
WO2024145313A1 (en) * 2022-12-27 2024-07-04 Shaw Industries Group. Inc. Drum loading system
WO2024206748A1 (en) * 2023-03-30 2024-10-03 Amgen Inc. Method of using an ultrasonic flow sensor to monitor fill weight accuracy of clinical, commercial, and process development fill/finish operations

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US4697622A (en) * 1984-06-01 1987-10-06 Parker Hannifin Corporation Passive filling device
JP2633820B2 (en) * 1995-06-16 1997-07-23 ボッシュ包装機株式会社 Liquid pressure filling method
DE19818762A1 (en) * 1998-04-27 1999-10-28 Khs Masch & Anlagenbau Ag Filling system and filling element
JP3595244B2 (en) * 2000-06-06 2004-12-02 株式会社山武 Filling machine
DE10149473A1 (en) * 2001-10-08 2003-04-17 Flowtec Ag Method for filling containers with a defined quantity of medium, e.g. for food and pharmaceutical use, whereby a pre-fill and post-fill quantity is statistically determined so that dosing is highly accurate and reproducible
JP4008316B2 (en) * 2002-09-05 2007-11-14 株式会社大生機械 Liquid filling method
DE10256878A1 (en) 2002-12-04 2004-06-24 Endress + Hauser Flowtec Ag, Reinach Procedure for controlling the amount of overflow in filling systems

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WO2007048742A1 (en) 2007-05-03
US20100108178A1 (en) 2010-05-06
ATE461909T1 (en) 2010-04-15
DE502006006531D1 (en) 2010-05-06
EP1940726A1 (en) 2008-07-09
DE102005052197A1 (en) 2007-05-16
US8220501B2 (en) 2012-07-17

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