EP0255831B1 - Process and device for dispensing predetermined doses having a precise weight of a fluid filling material - Google Patents

Process and device for dispensing predetermined doses having a precise weight of a fluid filling material Download PDF

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Publication number
EP0255831B1
EP0255831B1 EP87901013A EP87901013A EP0255831B1 EP 0255831 B1 EP0255831 B1 EP 0255831B1 EP 87901013 A EP87901013 A EP 87901013A EP 87901013 A EP87901013 A EP 87901013A EP 0255831 B1 EP0255831 B1 EP 0255831B1
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Prior art keywords
filling material
filling
container
packaging
amount
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EP87901013A
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German (de)
French (fr)
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EP0255831A1 (en
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Ernst WÖHRLE
Claudio Anselmino
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Bayer AG
Carl Edelmann Verpackungstechnik GmbH
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Bayer AG
Carl Edelmann Verpackungstechnik GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • B65B1/32—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by weighing

Definitions

  • the invention relates both to the countries DE, FR, GB and IT and to the countries BE, CH, NL and SE according to the preamble of the associated claims 1 and 2, respectively, to a method and a device for the metered, weight-based filling of a predetermined amount of a flowable, Powdery or finely granulated filling goods in packaging containers, in particular in tubular bag packs or the like.
  • EP-A-0234605 (prior art according to Article 54 (3) and (4) for the countries DE, FR, GB and IT) is one of these Method known, wherein the filling material is introduced into the packaging container gravimetrically by the predetermined quantity of the filling material to be introduced into the packaging container from a first filling supply at intervals, controlled gravimetrically by means of a speed-controlled metering screw into the packaging container and then one of the filled quantity approximately corresponding to the quantity Bottled goods from a second bott llgutborrat is metered to the first bottled goods within a time corresponding to the downtime of the packaging machine, and a device with a speed-controlled, motor-driven discharge screw in a cladding tube, which is flanged to the outlet end of a container containing the bottled goods, the bottled goods container being mounted on load cells, An entry screw controlled in terms of the number of its revolutions is arranged above the filling goods container and the arrangement is assigned a control device, to which the measurement data of the weight load cells
  • the volumetric dosage has the disadvantage of being extremely imprecise, which results in considerable weight differences in the contents of the packs. Wherever greater accuracy is required when portioning the filling goods, it is common to use replenishment systems with a shut-off scale, which, however, cannot be used for tubular bag packaging machines because of the connection of the packaging container to the packaging machine. But even these devices, which are supposed to be able to achieve a relatively high level of accuracy, show that this is ultimately not sufficient in practice because the overfill required by the provisions of the prepackaging regulation reaches a level which leads to considerable losses for the bottler Operation leads. This fact is illustrated by the example given below.
  • the shortage due to filling must not be greater than 15 g. Since experience has shown that the filling device works with a tolerance of ⁇ 20 g, an average minimum weight of the filling quantity of 1,005 g is set for all packs. This means that the overfill is at least 5 g per pack. If, for example, 1.2 million packages are produced in one year, the overfill is at least 6,000 kg per year. If the kilogram is assumed to be DM 20, the overfilling of just 5 g with a 1,000 g package results in a loss of DM 120,000.
  • the invention is based on the object of designing the known method and the device in such a way that the use of load cells with a small measuring range is possible, and of course in compliance with the legal provisions of the prepackaging ordinance, in order to finally overfill the packages as a result of these provisions to reduce a minimum.
  • the drawing shows the device for carrying out the method designed according to the invention using a particularly preferred exemplary embodiment relating to both the device of the claims for the countries DE, FR, GB and IT and the device of the claim for the countries BE, CH, NL and SE .
  • a from a frame, not shown Carried frame 11 serves to support the container 12, which rests with its three claws 13 on load cells 14.
  • An entry screw 23 is arranged above the frame 11, the screw housing 24 of which has an outlet 25 projecting into the filling goods container 12 without any need for guidance.
  • the feed screw housing 24 is connected via a pipe socket 26 to a storage container 27 (not shown in detail) for the filling material.
  • the feed screw 23 is set in rotation by the drive motor 29 via the gear 28.
  • the device described above and shown in FIG. 1 is operated in the manner according to the invention described in more detail below.
  • the quantity of filling material held in the filling material container 12 is kept relatively small and constant so that the weights and weight differences of the device supported on the weight measuring boxes 14 are kept as small as possible. Due to the constant amount in the container 12, the static pressure prevailing at each point is approximately the same and is therefore subject to only minor, negligible fluctuations due to the system. In addition, in the selected embodiment, it can be achieved that external influences, such as e.g. Vibrations, largely suppressed, if not completely avoided. This also has a positive effect on the improvement of the dosing accuracy.
  • the vertical discharge screw 16 in the cladding tube 15 surrounding it is preferably driven by the drive motor 18 in the phase-gated electric motor, the speed of which can be set to a specific value between 0 and 1200 rpm, cyclically, as can be seen in particular from the graph in FIG. 2A is evident.
  • the discharge screw 16 conveys a predetermined quantity of the filling material into the packaging container 39 arranged under the lower mouth 38.
  • the control unit 32 switches off the drive motor 18 via the motor controller 34, as a result of which any further dispensing of filling material does not occur .
  • the drive motor 29 is switched on, as a result of which the feed screw 23 introduces approximately as much filling material into the filling material container 12 as was previously discharged from it.
  • the next quantity of filling material (G2) is now assumed, as can also be seen in a simple manner in FIG. 2A.
  • the discharge is expediently carried out by the discharge screw 16 in two stages. In a first stage, approximately 90 to 95% of the metered quantity of filling material to be dispensed is applied, and in the second stage, with the speed of the discharge screw 16 slowing down, the remaining amount, in order to improve the accuracy in the desired manner in this way as well.

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

Abstract

A process and device for filling packaging containers, in particular tubular bags or similar packages, with doses having a predetermined weight of a fluid, powdery or finely ground filling material, whereby the filling material is gravimetrically introduced in the packaging containers. The predetermined amount of filling material to be introduced in the packaging containers (39) is gravimetrically regulated by a speed-controlled metering screw (16), transferred from a first reservoir (12) of filling material and introduced at intervals in the packaging container (39). Finally, an amount of the filling material more or less equivalent to the amount dispensed is transferred from a second reservoir (27) of filling material to the first reservoir (12) during a period corresponding to the stoppage time of the packaging machine.

Description

Die Erfindung betrifft sowohl für die Länder DE, FR, GB und IT als für die Länder BE, CH, NL und SE nach dem Oberbegriff der zugehörigen Ansprüche 1 bzw. 2 ein Verfahren undeine Vorrichtung zum dosierten, gewichtsgerechten Abfüllen einer vorbestimmten Menge eines fließfähigen, pulver förmigen oder feingranulierten Abfüllguts in Verpackungsbehälter, insbesondere in Schlauchbeutetpackungen o. dgl. Aus der EP-A-0234605 (Stand der Technik nach Artikel 54(3) und (4) für die Länder DE, FR, GB und IT) ist ein derartiges Verfahren behannt, wobei die Einbringung des Abfüllguts in den Verpackungsbehälter gravimetrisch erfolgt, indem die in den Verpackungsbehälter einzubringende vorbestimmte Menge des Abfüllguts aus einem ersten Abfüllvorrat intervallweise gravimetrisch gesteuert mittels einer drehzahlgesteuerten Dosierschnecke in den Verpackungsbehälter eingetragen und anschließend eine der abgefüllten Menge in etwa entsprechende Menge des Abfüllguts aus einem zweiten Abfüllgutbvorrat dem ersten Abfüllgutvorrat dosiert innerhalb einer der Stillstandszeit der Packmaschine entsprechenden Zeit zugeführt wird, sowie eine Vorrichtung mit einer drehzahlgesteuerten, motorisch angetriebenen Austragsschnecke in einem Hüllrohr, das an das Auslaufende eines das Abfüllgut enthaltenden Behälters angeflanscht ist, wobei der Abfüllgutbehälter auf Gewichtsmeßdosen gelagert ist, oberhalb des Abfüllgutbehälters eine hinsichtlich der Anzahl ihrer Umdrehungen gesteuerte Eintragsschnecke angeordnet ist und der Anordnung eine Steuereinrichtung zugeordnet ist, welcher laufend die Meßdaten der Gewichtsmeßdosen zugeführt werden und welche zum Erreichen der vorgegebenen Abfüllmenge Steuerimpluse an einen Regler zur Veranlassung der in vorbestimmter Zeit notwendigen Anzahl von Umdrehungen der Welle des Antriebsmotors der Austragsschnecke und zur Steuerung des Antriebsmotors für die Eintragsschnecke abgibt.The invention relates both to the countries DE, FR, GB and IT and to the countries BE, CH, NL and SE according to the preamble of the associated claims 1 and 2, respectively, to a method and a device for the metered, weight-based filling of a predetermined amount of a flowable, Powdery or finely granulated filling goods in packaging containers, in particular in tubular bag packs or the like. EP-A-0234605 (prior art according to Article 54 (3) and (4) for the countries DE, FR, GB and IT) is one of these Method known, wherein the filling material is introduced into the packaging container gravimetrically by the predetermined quantity of the filling material to be introduced into the packaging container from a first filling supply at intervals, controlled gravimetrically by means of a speed-controlled metering screw into the packaging container and then one of the filled quantity approximately corresponding to the quantity Bottled goods from a second bott llgutborrat is metered to the first bottled goods within a time corresponding to the downtime of the packaging machine, and a device with a speed-controlled, motor-driven discharge screw in a cladding tube, which is flanged to the outlet end of a container containing the bottled goods, the bottled goods container being mounted on load cells, An entry screw controlled in terms of the number of its revolutions is arranged above the filling goods container and the arrangement is assigned a control device, to which the measurement data of the weight load cells are continuously fed and which, in order to achieve the predetermined filling quantity, implies control to a controller to initiate the number of revolutions required in a predetermined time the shaft of the drive motor of the discharge screw and for controlling the drive motor for the feed screw.

Es ist bisher üblich, eine vorbestimmte Menge eines fließfähigen Abfüllguts auf zweierlei Weise zu dosieren und in Verpackungsbehälter, insbesondere in Schlauchbeutelpackungen, einzubringen. Nach der einen Methode erfolgt die Dosierung volumetrisch und nach der zweiten Methode gravimetrisch.It has hitherto been customary to meter a predetermined amount of a flowable filling material in two ways and to introduce it into packaging containers, in particular in tubular bag packs. Dosing is volumetric by one method and gravimetric by the second method.

Die volumetrische Dosierung hat den Nachteil, außerordentlich ungenau zu sein, was beträchtliche Gewichtsdifferenzen hinsichtlich des Inhalts der Packungen zur Folge hat. Überall dort, wo es auf eine größere Genauigkeit bei der Portionierung des Abfüllguts ankommt, pflegt man Nachdosiersysteme mit einer Abschaltwaage einzusetzen, welche jedoch für Schlauchbeutelabpackmaschinen wegen der Verbindung des Verpackungsbehälters mit der Packmaschine nich anwendbar sind. Aber auch diese Geräte, die angeblich eine relativ hohe Genauigkeit erreichen lassen sollen, lassen erkennen, daß diese in der Praxis letztendlich doch nicht ausreichend ist, weil die aufgrund der Bestimmungen der Fertigpackungsverordnung notwendige Überfüllung ein Maß erreicht, welches zu nicht unbeträchtlichen Einbußen für den abfüllenden Betrieb führt. Dieser Sachverhalt ist durch das nachstehend weidergegebene Beispiel näher verdeutlicht.The volumetric dosage has the disadvantage of being extremely imprecise, which results in considerable weight differences in the contents of the packs. Wherever greater accuracy is required when portioning the filling goods, it is common to use replenishment systems with a shut-off scale, which, however, cannot be used for tubular bag packaging machines because of the connection of the packaging container to the packaging machine. But even these devices, which are supposed to be able to achieve a relatively high level of accuracy, show that this is ultimately not sufficient in practice because the overfill required by the provisions of the prepackaging regulation reaches a level which leads to considerable losses for the bottler Operation leads. This fact is illustrated by the example given below.

Soll eine Packung beispielsweise 1.000 g eines Abfüllguts enthalten, so darf die abfüllungsbedingte Fehlmenge nicht größer sein als 15 g. Da erfahrungsgemäß die Abfüllvorrichtung mit einer Toleranzmenge von ± 20 g arbeitet, stellt sich im Durchschnitt aller Packungen ein mittleres Mindestgewicht der Abfüllmenge von 1.005 g ein. Dies bedeutet, daß die Überfüllung wenigstens 5 g pro Packung beträgt. Werden nun beispielsweise in einem Jahr 1,2 Millionen Packungen hergestellt, so beträgt die Überfüllung pro Jahr wenigstens 6.000 kg. Bei einem Kilogramm von angenommen DM 20,- ergibt sich aus der Überfüllung von nur 5 g bei einer 1.000 g-Packung ein Verlust von DM 120.000,-.For example, if a package is to contain 1,000 g of a filling good, the shortage due to filling must not be greater than 15 g. Since experience has shown that the filling device works with a tolerance of ± 20 g, an average minimum weight of the filling quantity of 1,005 g is set for all packs. This means that the overfill is at least 5 g per pack. If, for example, 1.2 million packages are produced in one year, the overfill is at least 6,000 kg per year. If the kilogram is assumed to be DM 20, the overfilling of just 5 g with a 1,000 g package results in a loss of DM 120,000.

Das eingangs bezeichnete Verfahren und die zugenhörige Vorrichtung sind aus der US-A 4 381 545 bekannt. Dort dient der auf Gewichtsmeßdosen gelagerte Abfüllgutbehälter ganz offensichtlich für einen so großen Vorrat von Abfüllgut, der in mehrere Verpackungsbehälter abzufüllen ist. Demzufolge besteht ein sehr großer Gewichtsunterschied zwischen dem Gewicht des Abfüllbehälters vor dem Abfüllen von Abfüllgut in einen ersten Verpackungsbehälter und dem Gewicht des Abfüllgutbehälters nach dem Abfüllen von Abfüllgut in den letzten Verpakkungsbehälter, so daß die Gewichtsmeßdosen solche für einen verhältnismäßig großen Meßhereich sein müssen.The method described at the outset and the associated device are known from US Pat. No. 4,381,545. There the filling goods container stored on load cells obviously serves for such a large supply of filling material which has to be filled into several packaging containers. Accordingly, there is a very large difference in weight between the weight of the filling container before filling of filling material in a first packaging container and the weight of the filling material container after filling filling material in the last packaging container, so that the load cells must be such for a relatively large measuring range.

Der Erfindung liegt insoweit die Aufgabe zugrunde, das bekannte Verfahren und die Vorrichtung so auszubilden, daß der Einsatz von Meßdosen mit kleinem Meßbereich möglich ist, und zwar selbstverständlich unter Einhaltung der gesetzlichen Bestimmungen der Fertigpackungsverordnung, um schließlich die durch diese Bestimmungen bedingten Überfüllungen der Pakkungen auf ein Mindestmaß zu reduzieren.In this respect, the invention is based on the object of designing the known method and the device in such a way that the use of load cells with a small measuring range is possible, and of course in compliance with the legal provisions of the prepackaging ordinance, in order to finally overfill the packages as a result of these provisions to reduce a minimum.

Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, diejenigen Maßnahmen anzuwenden, die im kennzeichneten Teil der die Lander DE, FR, GB und IT bzw. die Länder BE, CH, NL und SE betreffenden Ansprüche 1 bzw. 2 angegeben sind.To achieve this object, it is proposed according to the invention to use those measures which are specified in the marked part of claims 1 and 2 relating to the countries DE, FR, GB and IT or the countries BE, CH, NL and SE.

In der Zeichnung ist die Vorrichtung zur Durchführung des erfindungsgemäß ausgebildeten Verfahrens anhand eines besonders bevorzugten Ausführungsbeispiels betreffend sowohl die Vorrichtung der Ansprüche für die Länder DE, FR, GB und IT als auch die Vorrichtung des Anspruchs für die Länder BE, CH, NL und SE dargestellt.The drawing shows the device for carrying out the method designed according to the invention using a particularly preferred exemplary embodiment relating to both the device of the claims for the countries DE, FR, GB and IT and the device of the claim for the countries BE, CH, NL and SE .

Fig. 1 zeigt in schematischer Darstellung die erfindungsgemaß ausgebildete Vorrichtung zum dosierten, gewichtsgerechten Abfüllen einer vorbestimmten Menge eines fließfähigen, pulverförmigen oder feingranulierten Abfüllguts in besonders vorteilhafter Weise.Fig. 1 shows a schematic representation of the device designed according to the invention for the metered, weight-appropriate filling of a predetermined amount of a flowable, powdery or finely granulated filling material in a particularly advantageous manner.

Ein von einem nicht näher dargestellten Gestell getragener Rahmen 11 dient der Abstützung des Abfüllgutbehälters 12, welcher mit seinen drei Pratzen 13 auf Gewichtsmeßdosen 14 aufliegt. An das untere Auslaufende des kegelförmigen Abfüllgutbehälters 12 ist das Hüllrohr 15 angeflanscht, in welchem sich die Austragsschnecke 16 befindet, die mit der Antriebswelle 17 des Antriebsmotors 18 gekuppelt ist. Die die Antriebswelle 17 umgebende Hohlwelle 19, die die im Inneren des konischen Abfüllgutbehälters 12 liegenden Rührflügel 20 antreibt, ist über ein Getriebe 21 mit dem Rührwerkantriebsmotor 22 gekuppelt. Oberhalb des Rahmens 11 ist eine Eintragsschnecke 23 angeordnet, deren Schnekkengehäuse 24 einer in den Abfüllgutbehälter 12 beführungsfrei hineinragenden Auslauf 25 aufweist. Das Eintragsschneckengehäuse 24 ist über einen Rohrstutzen 26 mit einem nicht im einzelnen dargestellten Vorratsbehälter 27 für das Abfüllgut verbunden. Die Eintragsschnecke 23 wird über das Getriebe 28 von dem Antriebsmotor 29 in Drehung versetzt.A from a frame, not shown Carried frame 11 serves to support the container 12, which rests with its three claws 13 on load cells 14. The cladding tube 15, in which the discharge screw 16 is located, which is coupled to the drive shaft 17 of the drive motor 18, is flanged to the lower outlet end of the conical filling goods container 12. The hollow shaft 19 surrounding the drive shaft 17, which drives the agitator blades 20 located inside the conical filling material container 12, is coupled to the agitator drive motor 22 via a gear 21. An entry screw 23 is arranged above the frame 11, the screw housing 24 of which has an outlet 25 projecting into the filling goods container 12 without any need for guidance. The feed screw housing 24 is connected via a pipe socket 26 to a storage container 27 (not shown in detail) for the filling material. The feed screw 23 is set in rotation by the drive motor 29 via the gear 28.

Die Gewichtsmeßdosen 14 sind über die elektrischen Leitungen 30 über einen Meßverstärker und Analog/Digitalwandler 31 mit einem Steuergerät 32 verbunden, welches die diesem übermittelten Werte aufbereitet. Das Steuergerät 32 verarbeitet die vorerwähnten Werte und gibt und empfängt über die Leitungen 33 Impulse an bzw. von dem Motorregler 34, der seinerseits die Antriebsmotoren 18 und 29 entsprechend der vorgegebenen Sollkurve des produktspezifischen Zeit/Gewichtsdiagramms, von welchem eines bespielsweise in Fig 2B dargestellt ist, steuert. Zu Kontrollzwecken und zur Aufrechterhaltung eines bestimmten Niveaus im Abfüllgutbehälter 12 ist eine Tastvorrichtung 35 vorgesehen, deren Fühler 36 in den Abfüllgutbehälter 12 hineinragt. Diese Vorrichtung ist über die Leitung 37 gleichfalls mit dem Steuergerät 32 gekuppelt.The load cells 14 are connected via the electrical lines 30 via a measuring amplifier and analog / digital converter 31 to a control unit 32 which processes the values transmitted to it. The control unit 32 processes the aforementioned values and gives and receives pulses via the lines 33 to and from the motor controller 34, which in turn drives the drive motors 18 and 29 in accordance with the predetermined target curve of the product-specific time / weight diagram, one of which is shown, for example, in FIG. 2B controls. For control purposes and to maintain a certain level in the container 12, a feeler 35 is provided, the sensor 36 of which protrudes into the container 12. This device is also coupled to control unit 32 via line 37.

Die zuvor beschriebene und in Fig. 1 dargestellte Vorrichtung wird in der nachstehend näher bezeichneten, erfindungsgemäßen Weise betrieben.The device described above and shown in FIG. 1 is operated in the manner according to the invention described in more detail below.

Um zu einer höchstmöglichen Dosiergenauigkeit zu gelangen, wird die im Abfüllgutbehälter 12 jeweils vorrätig gehaltene Abfüllgutmenge relativ klein und konstant gehalten, damit die Gewichte und Gewichtsdifferenzen der auf den Gewichtsmeßdosen 14 abgestützten Vorrichtung möglichst klein gehalten bleiben. Durch die jeweils konstante Menge im Abfüllgutbehälter 12 ist der an jeder Stelle herrschende statische Druck in etwa gleich und damit systembedingt nur geringfügigen, vernachlässigbaren Schwankungen unterworfen. Außerdem kann bei der gewählten Ausführungsform erreicht werden, daß von außen auf das System einwirkende Einflüsse, wie z.B. Schwingungen, weitgehend unterdrückt, wenn nicht sogar ganz vermieden werden. Dies wirkt sich gleichfalls positiv auf die Verbesserung der Dosiergenauigkeit aus. Die vertikale Austragsschnecke 16 im diese umgebenden Hüllrohr 15 wird von dem Antriebsmotor 18 vorzugweise im phasenanschnittgesteuerten Elektromotor, dessen Drehzahl auf einen bestimmten Wert zwischen 0 und 1200 U/min einstellbar ist, angetrieben, und zwar zyklisch, wie dies insbesondere aus der Kurvendarstellung in Fig. 2A ersichlicht ist. Dabei fördet die Austragsschnecke 16 eine vorbestimmte Menge des Abfüllguts in den unter der unteren Mündung 38 angeordneten Verpakkungsbehälter 39. Sobald die vorbestimmte Menge Abfüllgut ausgetragen worden ist, schaltet das Steuergerät 32 über den Motorregler 34 den Antriebsmotor 18 ab, wodurch jedwede weitere Abgabe von Abfüllgut unterbleibt. Gleichzeitig wird der Antriebsmotor 29 eingeschaltet, wodurch die Eintragsschnecke 23 in etwa so viel Abfüllgut in den Abfüllgutbehälter 12 einträgt, als zuvor aus ihm abgegeben worden ist. Ausgehend von dem von den Gewichtsmeßdosen festgestellten Gewicht (G1) der auf diesen abgestimmten Vorrichtung einschließlich ihres inhalts wird nunmehr bei der Abgabe der nächsten Menge Abfüllgut (G2) ausgegangen, wie dies gleichfalls wieder auf Fig. 2A in einfacher Weise ersichtlich ist.In order to achieve the highest possible dosing accuracy, the quantity of filling material held in the filling material container 12 is kept relatively small and constant so that the weights and weight differences of the device supported on the weight measuring boxes 14 are kept as small as possible. Due to the constant amount in the container 12, the static pressure prevailing at each point is approximately the same and is therefore subject to only minor, negligible fluctuations due to the system. In addition, in the selected embodiment, it can be achieved that external influences, such as e.g. Vibrations, largely suppressed, if not completely avoided. This also has a positive effect on the improvement of the dosing accuracy. The vertical discharge screw 16 in the cladding tube 15 surrounding it is preferably driven by the drive motor 18 in the phase-gated electric motor, the speed of which can be set to a specific value between 0 and 1200 rpm, cyclically, as can be seen in particular from the graph in FIG. 2A is evident. The discharge screw 16 conveys a predetermined quantity of the filling material into the packaging container 39 arranged under the lower mouth 38. As soon as the predetermined quantity of filling material has been discharged, the control unit 32 switches off the drive motor 18 via the motor controller 34, as a result of which any further dispensing of filling material does not occur . At the same time, the drive motor 29 is switched on, as a result of which the feed screw 23 introduces approximately as much filling material into the filling material container 12 as was previously discharged from it. On the basis of the weight (G1) of the device matched to the weight load cells, including their contents, the next quantity of filling material (G2) is now assumed, as can also be seen in a simple manner in FIG. 2A.

Zweckmäßigerweise erfolgt der Austrag durch die Austragsschnecke 16 in zwei Stufen. In einer ersten Stufe wird etwa 90 bis 95% der dosiert abzugebenden Abfüllgutmenge ausgebracht und in der zweiten Stufe bei verlangsamter Drehzahl der Austragsschnecke 16 die Restmenge, um auf diese Art und Weise gleichfalls die Genauigkeit in gewünschter Weise zu verbessern.The discharge is expediently carried out by the discharge screw 16 in two stages. In a first stage, approximately 90 to 95% of the metered quantity of filling material to be dispensed is applied, and in the second stage, with the speed of the discharge screw 16 slowing down, the remaining amount, in order to improve the accuracy in the desired manner in this way as well.

Claims (3)

1. Process for the metered, precise weight filling of a predetermined amount of a fluid, powdery or fine-grained filling material into packaging containers, in particular into tubular bag packages or the like, whereby the filling material is gravimetrically introduced into the packaging container, with the predetermined amount of filling material to be introduced into the packaging container from a first reservoir being gravimetrically controlled at intervals by means of a speed-controlled metering screw and fed into the packing container, characterised in that a metered amount of the filling material corresponding more or less to the amount dispensed is then transferred from a second filling material reservoir to the first filling material reservoir within a period corresponding to the stoppage time of the packaging machine.
2. Device for the metered precise weight filling of a predetermined amount of a fluid, powdery or fine grained filling material into packaging containers (39), in particular tubular bag packaging or the like, having a speed-controlled motor-driven delivery screw (16) in a jacket (15) which is flanged to the outlet end of a filling material container (12) containing the filling material, the container being mounted on weight [measuring] means (14), and having a control device (31,32) to which the measurement data from the weight measuring means (14) are continuously supplied and which, in order to obtain the predetermined filling amount, transmits control pulses to a control unit (34) to instigate the number of rotations of the shaft (19) of the drive motor (18) of the delivery screw (16) necessary within a predetermined time, characterised in that above the filling material container (12) there is arranged a feed screw (23) controlled with respect to the number of its rotations and in that the control device (31, 32) is assigned at the same time to this feed screw (23) which transmits control pulses to the control unit (34) also to control the drive motor (29) for the feed screw (23) by means of a time switch stage.
EP87901013A 1986-01-28 1987-01-27 Process and device for dispensing predetermined doses having a precise weight of a fluid filling material Expired - Lifetime EP0255831B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3602493 1986-01-28
DE19863602493 DE3602493A1 (en) 1986-01-28 1986-01-28 METHOD AND DEVICE FOR THE DOSED, WEIGHT-BASED FILLING OF A PREDICTED QUANTITY OF A FLOWABLE FILLING MATERIAL

Publications (2)

Publication Number Publication Date
EP0255831A1 EP0255831A1 (en) 1988-02-17
EP0255831B1 true EP0255831B1 (en) 1990-08-22

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EP87901013A Expired - Lifetime EP0255831B1 (en) 1986-01-28 1987-01-27 Process and device for dispensing predetermined doses having a precise weight of a fluid filling material

Country Status (6)

Country Link
US (1) US4805673A (en)
EP (1) EP0255831B1 (en)
DE (2) DE3602493A1 (en)
DK (1) DK506087D0 (en)
ES (1) ES2005856A6 (en)
WO (1) WO1987004404A1 (en)

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DE3816202A1 (en) * 1988-05-11 1989-11-23 Motan Verfahrenstechnik PLANT FOR PRODUCING AND PACKING A MULTIPLE MIXTURE
US5038839A (en) * 1988-07-18 1991-08-13 Takeda Chemical Industries, Ltd. Filling apparatus
US5109894A (en) * 1988-11-14 1992-05-05 Mcgregor Harold R Vertical bottom-fill auger assembly
US5327947A (en) * 1988-11-14 1994-07-12 Mcgregor Harold R Vertical auger type bag filler having a vibrating bowl with inverted venting cone and rotating agitator assembly
US5113917A (en) * 1988-11-14 1992-05-19 Mcgregor Harold R Vertical bottom-fill auger assembly
US4944334A (en) * 1988-11-14 1990-07-31 Mcgregor Harold R Vibrating hopper and auger feed assembly
CH681881A5 (en) * 1990-10-22 1993-06-15 Lorenz Bohler
US5771665A (en) * 1995-12-12 1998-06-30 Nelson; W. Titus Sand bagging system
EP0980510B1 (en) 1997-05-07 2003-01-08 E.I. Du Pont De Nemours And Company Measuring and dispensing system for solid dry flowable materials
DE19950743A1 (en) * 1999-10-21 2001-04-26 Harald Kniele Mixer for mixing liquids, powdered and granular components, e.g. for concrete mixing, has inner stirring worm mechanism, outer stirring mechanism with mixing arms with mixing blades
CH709629B1 (en) † 2000-10-06 2015-11-30 Chemspeed Technologies Ag A device having a tool holder, a tool and a scale.
EP2072974A1 (en) * 2007-12-19 2009-06-24 Mettler-Toledo AG Laboratory device with a metered material feed device
US20090294469A1 (en) * 2008-05-30 2009-12-03 Ecolab Inc. Mass-Based Powder Dispensing
US7563216B1 (en) 2008-09-12 2009-07-21 Bodipro Technologies, Inc. Push-up exercise device
US8169325B2 (en) * 2009-02-13 2012-05-01 Verdiramo Vincent L Portable hand wash monitoring system and method
US8154412B2 (en) * 2009-02-13 2012-04-10 Verdiramo Vincent L Hand wash monitoring system and method
TWI397869B (en) * 2009-05-08 2013-06-01 Vincent Louis Verdiramo Improved hand wash monitoring system and method
CN102152862B (en) * 2011-02-24 2015-10-14 秦皇岛燕大源达机电科技股份有限公司 Vertical powder material metering device for filling
CN102633001A (en) * 2012-05-02 2012-08-15 无锡市耐特机电一体化技术有限公司 Material bagging apparatus provided with stirring mechanism
DE102012222335A1 (en) * 2012-12-05 2014-06-05 Robert Bosch Gmbh Dosing device for bulk material
CN104415706B (en) * 2013-08-21 2016-12-28 深圳市靶心配比科技有限公司 A kind of LED rubber powder precision automatic blending method
CN215887299U (en) * 2021-03-11 2022-02-22 京东方科技集团股份有限公司 Filler device, filler equipment and electrochemical deposition system

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Also Published As

Publication number Publication date
DE3764429D1 (en) 1990-09-27
EP0255831A1 (en) 1988-02-17
DE3602493A1 (en) 1987-07-30
DK506087A (en) 1987-09-25
WO1987004404A1 (en) 1987-07-30
DK506087D0 (en) 1987-09-25
ES2005856A6 (en) 1989-04-01
US4805673A (en) 1989-02-21

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