EP0184166B1 - Method and apparatus for filling rigid containers - Google Patents

Method and apparatus for filling rigid containers Download PDF

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Publication number
EP0184166B1
EP0184166B1 EP85115232A EP85115232A EP0184166B1 EP 0184166 B1 EP0184166 B1 EP 0184166B1 EP 85115232 A EP85115232 A EP 85115232A EP 85115232 A EP85115232 A EP 85115232A EP 0184166 B1 EP0184166 B1 EP 0184166B1
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EP
European Patent Office
Prior art keywords
filling
container
gas
displacement body
filling material
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EP85115232A
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German (de)
French (fr)
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EP0184166A1 (en
Inventor
Hans Dipl.-Chem. Gabler
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Individual
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Priority to AT85115232T priority Critical patent/ATE41637T1/en
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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
    • B65B39/00—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers
    • B65B39/12—Nozzles, funnels or guides for introducing articles or materials into containers or wrappers movable towards or away from container or wrapper during filling or depositing
    • 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
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
    • B65B31/044—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles being combined with a filling device

Definitions

  • the invention relates to a method for a device for filling prefabricated, relatively rigid containers with filling material by exchanging a first gas, e.g. Air, against a second gas, for example inert gas, a filling device delivering the filling material being lowered to the bottom of the container at the beginning of the filling process and being raised during the filling process, and the second gas being introduced into the container at the same time as the filling material.
  • a first gas e.g. Air
  • a second gas for example inert gas
  • FR-A1402724 a method of the type specified above is described, liquid is filled into containers, and during the filling process carbon dioxide or another inert gas is passed to the liquid level in order to influence the liquid content of the container during the To prevent filling.
  • carbon dioxide which is heavier than air and which remains as a covering layer over the liquid and shields it from the air.
  • US-A 37 08 952 describes a method for filling powdered material into compressible bags. Because of the compressibility, the bags are practically empty before the filling process, so that there are no problems with the discharge of gas residues. If, on the other hand, relatively rigid containers are to be filled, the first gas is already in the container at the beginning of the filling process.
  • the invention is based on the object of improving and expanding the method of the type specified at the outset in such a way that the air or the like in the packaged goods is removed from the pack and exchanged for another gas and at the same time the packaged goods with the least possible cost and labor can be filled in in doses.
  • a displacement body is introduced into the container at the beginning of the filling process with powdered filling material, the cross section of which is adapted to the cross section of the container and which is raised during the filling process.
  • the introduced displacement body removes the first gas from the relatively rigid container at the beginning of the filling process. In this way, similar conditions are created as are given for compressible containers, although the invention can be used to fill tin cans or the like.
  • the proposal according to the invention also allows relatively quick work because the displacement body also helps to suppress the formation of dust.
  • the filling device and also the displacement body move away from the bottom of the container according to the filling height, i.e. This means that either the filling device can be raised and lowered, or that the packaging container can be moved up and down. In this way it is achieved that the filling material is not or only slightly above the surface of the filling material already filled when it emerges from the filling device. Dusting and the loss of packaged goods practically does not occur.
  • the invention further relates to a device for filling prefabricated, relatively rigid containers with filling material by exchanging a first gas, e.g. Air, against a second gas, for example an inert gas, with a filling device which delivers the filling material and which can be lowered to the bottom of the container and raised during the filling process, and with a device for introducing the second gas into the container during the filling process.
  • a first gas e.g. Air
  • a second gas for example an inert gas
  • the device according to the invention is characterized in that the filling device for filling powdered filling material is connected to a displacement body, the Cross section is adapted to the cross section of the container.
  • the displacement body can in particular be disk-shaped.
  • the displacement body completely fills the container at the beginning of the filling process.
  • supply lines for the second gas are provided in the displacement body.
  • the displacement body surrounds a filling tube of the filling device.
  • the filling pipe can be designed as part of a metering device or the filling pipe encloses a screw conveyor.
  • the displacement body which the invention uses, has in particular the effect that the filling material is compressed during the filling process.
  • the gas content of the product is reduced.
  • the filling tube 6 of the filling device 3 is almost lowered to the bottom 4 of the container 1.
  • the container 1 receives the filling material 2.
  • the filling material 2 is located in a storage container 9, to which a screw conveyor 7 is connected.
  • the screw conveyor 7 is driven by the shaft 11.
  • the filling material 2 reaches the bottom 4 of the packaging container 1 through the screw conveyor 7 in a uniform flow.
  • the filling device 3 with the filling tube 6 and the displacement body 5 lifts out of the packaging container 1, as corresponds to the filling level of the filling material 2.
  • Another variant of the method provides that the container 1 is lowered, corresponding to the filling height of the filling material 2.
  • the lowering speed of the container 1 or the lifting speed of the filling device 3 is determined from the speed with which the filling material 2 reaches the container 1.
  • the container 1 is now filled to the top.
  • the filling device 3 is removed from the container.
  • a lid 12 can be applied to the container 1 and the container 1 can be closed in a known manner.
  • the filled, closed container is replaced by a new, empty one, after which the process is repeated.
  • FIG. 1 to 3 show an exemplary embodiment of the invention with a displacement body 5 in the form of a disk.
  • the disc is in the form of the container 1, e.g. a can, adjusted.
  • the first gas contained in the container 1 is displaced by the introduction of the displacement body 5.
  • the displacement body 5 is fixedly connected to the filling device 3 and is raised with this in the course of the filling process.
  • the air is further displaced by the introduced filling material 1.
  • the filling material 2 Before the filling material 2 is introduced into the container 1, the filling material can be fed through supply lines 8 (see FIG. 1) in the storage container 9 with a second gas, e.g. such as an inert gas. In this method, already gassed filling material gets into the container 1.
  • a second gas e.g. such as an inert gas
  • the displacement body 5 also causes the filling material 2 to be compressed.
  • the displacement body 5 can also, as shown in FIG. have a cylindrical shape that fills the can.
  • lines 10 for the second gas are provided in the displacement body 5. These gas lines can open on the underside of the displacement body 5, or else have an opening into the filling pipe 6, which causes the filling material 2 to be gassed again before it exits the filling pipe 6.
  • An optimal gas exchange is achieved by a combination of displacement body, gas line in the displacement body 5 ', prior gassing through the supply line 8 in the storage vessel 9 and flushing with inert gas before the filling process.
  • a metering device 20 is shown, at the lower end of which the filling pipe 6 is connected.
  • the means for introducing the filling material into the metering device and for metering itself are not shown in more detail.
  • the contents can be measured, for example, using a scale, or determined in terms of volume.
  • valve plate 25 which forms a controllable closure.
  • This valve plate 25 is carried by the rod 22, which runs inside the tube 6 and the metering device 20. By lowering the rod 22, the closure 21 is opened, and the filling material enters the container 1 through the gap 23.
  • valve plate of the closure 21 can also be designed as a centrifugal plate and driven via the rod 22, which then acts as a shaft. In this way, the filling of the filling material into the container 1 can be accelerated.
  • the closure 21 is designed as a rotatable disk.
  • This disc 27 has sector-like openings 24, and the disc 27 interacts with an essentially similarly designed closure plate 26 which is arranged at the lower end of the tube 6 and also has openings 28.
  • the disc 27 can be rotated by means of the rod 22, for example by a right angle, so that the openings 24 of the disc 27 and the openings 28 of the closure plate 26 come into register, whereby the closure 21 is opened.
  • the invention is particularly applicable when, for example, cans containing powdered foods, e.g. to be filled with milk products or the like.
  • This filling material should be packed under exclusion of oxygen in order to exclude the harmful effects of oxygen on the shelf life.
  • the invention is concerned with oxygen through an inert gas, e.g. To replace nitrogen.
  • the invention is also applicable when gases other than air or oxygen are to be exchanged for a second gas.
  • the second gas can also have a sterilizing effect, for example, with the aim of keeping the contents sterile as long as possible.
  • the invention can also be used when exchanging undesired reaction gases for a second gas, or also when it comes to bringing about a reaction with the filling material through the second gas during the closure of the containers.

Abstract

1. Method for filling prefabricated, relatively rigid containers (1) with filling material (2) with the replacement of a first gas, e.g. air, by a second gas, for example an inert gas, a filling device (3) which dispenses the filling material (2) being lowered at the beginning of the filling procedure as far as the base (4) of the container (1) and being raised during the filling procedure, and the second gas being introduced simultaneously with the filling material into the container, characterized in that, at the beginning of the procedure for filling with powdered filling material (2), a displacement body (5, 5') is introduced into the container (1), the cross section of which is matched to the cross section of the container (1) and which is raised during the filling procedure.

Description

Die Erfindung betrifft ein Verfahren zu einer Vorrichtung zum Füllen von vorgefertigten, relativ steifen Behältnissen mit Füllgut unter Austausch eines ersten Gases, z.B. Luft, gegen ein zweites Gas, beispielsweise Inertgas, wobei eine das Füllgut abgebende Füllvorrichtung zu Beginn des Füllvorganges bis auf den Boden des Behältnisses abgesenkt und während des Füllvorgangs angehoben wird, und das zweite Gas gleichzeitig mit dem Füllgut in das Behältnis eingeleitet wird.The invention relates to a method for a device for filling prefabricated, relatively rigid containers with filling material by exchanging a first gas, e.g. Air, against a second gas, for example inert gas, a filling device delivering the filling material being lowered to the bottom of the container at the beginning of the filling process and being raised during the filling process, and the second gas being introduced into the container at the same time as the filling material.

In der FR-A1402724 ist ein Verfahren der vorstehend angegebenen Art beschrieben, Dabei wird Flüssigkeit in Behälter abgefüllt, und während des Abfüllvorganges wird durch zusätzliche Leitungen Kohlendioxyd oder ein anderes inertes Gas auf den Flüssigkeitsspiegel geleitet, um eine Beeinflussung des flüssigen Inhalts des Behältnisses während des Füllvorganges zu verhindern. Ein derartiges Verfahren gelingt insbesondere bei der Anwendung von Kohlendioxyd, das schwerer ist als Luft und das als Deckschicht über der Flüssigkeit bleibt und diese gegenüber der Luft abschirmt.In FR-A1402724 a method of the type specified above is described, liquid is filled into containers, and during the filling process carbon dioxide or another inert gas is passed to the liquid level in order to influence the liquid content of the container during the To prevent filling. Such a method is particularly successful when using carbon dioxide, which is heavier than air and which remains as a covering layer over the liquid and shields it from the air.

Soll pulverförmiges Füllgut, also beispielsweise fetthaltige Lebensmittel, wie Milchpräparate und dergleichen, abgefüllt werden, ergeben sich Schwierigkeiten. Beim Einfüllvorgang gelangen mit dem Pulver beträchtliche Luftmengen in das Gefäss, die nach oben abzuströmen versuchen. Eine Abdeckung durch eine Gasschicht ist nicht durchführbar, da sich das abdeckende Gas mit der entweichenden Luft vermischt und mitgerissen wird. Insbesondere gilt dies dann, wenn spezifisch leichtere Gasarten verwendet werden müssen.Difficulties arise when filling powdered filling material, for example fatty foods, such as milk preparations and the like. During the filling process, considerable amounts of air get into the container with the powder, which try to flow upwards. Covering with a gas layer is not feasible, since the covering gas mixes with the escaping air and is entrained. This applies in particular when specifically lighter gas types have to be used.

In der US-A 37 08 952 ist ein Verfahren zum Abfüllen von pulverförmigem Gut in zusammendrückbare Beutel beschrieben. Wegen der Zusammendrückbarkeit sind die Beutel vor dem Füllvorgang praktisch leer, so dass keine Probleme mit der Ableitung von Gasresten entstehen. Wenn dagegen relativ steife Behältnisse zu füllen sind, befindet sich schon zu Beginn des Füllvorganges das erste Gas im Behältnis.US-A 37 08 952 describes a method for filling powdered material into compressible bags. Because of the compressibility, the bags are practically empty before the filling process, so that there are no problems with the discharge of gas residues. If, on the other hand, relatively rigid containers are to be filled, the first gas is already in the container at the beginning of the filling process.

Bei relativ steifen Behältnissen ist bisher derart verfahren worden, dass die mit dem pulverförmigen Verpackungsgut gefüllten Gefässe in einer Vakuum-Apparatur evakuiert werden, um darauf mit einem inerten Gas begast zu werden. Diese Vakuum-Apparate können aber nur eine geringe Zahl von gefüllten Behältnissen aufnehmen. Auch ist das Ein- und Ausschleusen der Behältnisse relativ kompliziert.In the case of relatively rigid containers, the procedure has hitherto been such that the containers filled with the powdery packaging material are evacuated in a vacuum apparatus in order to be gassed with an inert gas. These vacuum devices can only hold a small number of filled containers. The in and out of the containers is relatively complicated.

Wird versucht, die Durchsatzzeit druch die vorerwähnte Vakuum-Apparatur dadurch zu verbessern, dass leistungsfähigere Vakuum-Einrichtungen angewandt werden, ergibt sich bei feineren Pulvern der Nachteil, dass das Pulver beim Evakuieren stäubt und aus den Behältnissen herausgeblasen wird.If an attempt is made to improve the throughput time by means of the aforementioned vacuum apparatus by using more powerful vacuum devices, the disadvantage of finer powders is that the powder is dusted during evacuation and blown out of the containers.

Allen bekannten Verfahren ist gemeinsam, dass sie entweder verhältnismässig langsam arbeiten oder mit einem übermässigen Gasverbrauch, der durch Spülvorgänge entsteht, verbunden sind.Common to all known methods is that they either work relatively slowly or are associated with excessive gas consumption which arises from flushing processes.

Der Erfindung liegt die Aufgabe zugrunde, das Verfahren der eingangs angegebenen Gattung dahingehend zu verbessern und weitet zu entwikkeln, dass mit einem möglichst geringen Kosten-und Arbeitsaufwand die Luft oder dergleichen im Verpackungsgut aus der Verpackung entfernt und gegen ein anderes Gas ausgetauscht und gleichzeitig das Verpackungsgut dosiert eingefüllt werden kann.The invention is based on the object of improving and expanding the method of the type specified at the outset in such a way that the air or the like in the packaged goods is removed from the pack and exchanged for another gas and at the same time the packaged goods with the least possible cost and labor can be filled in in doses.

Diese Aufgabe wird dadurch gelöst, dass bei dem Verfahren der eingangs angegebenen Gattung zu Beginn des Füllvorganges mit pulverförmigen Füllgut ein Verdrängungskörper in das Behältnis eingebracht wird, dessen Querschnitt dem Querschnitt des Behältnisses angepasst ist und der während des Füllvorganges angehoben wird.This object is achieved in that, in the method of the type specified at the beginning, a displacement body is introduced into the container at the beginning of the filling process with powdered filling material, the cross section of which is adapted to the cross section of the container and which is raised during the filling process.

Der eingebrachte Verdrängungskörper beseitigt schon zu Beginn des Füllvorganges das erste Gas aus dem relativ steifen Behältnis. Es werden auf diese Weise ähnliche Verhältnisse geschaffen, wie diese bei zusammendrückbaren Behältnissen gegeben sind, obwohl die Erfindung beim Füllen von Blechdosen oder dergleichen Anwendung finden kann.The introduced displacement body removes the first gas from the relatively rigid container at the beginning of the filling process. In this way, similar conditions are created as are given for compressible containers, although the invention can be used to fill tin cans or the like.

Beim erfindungsgemässen Verfahren wird eine Vermischung des Füllgutes mit der Luft bzw. dem ersten Gas weitgehend unterbunden und es ist daher nicht notwendig, durch grössere Mengen des zweiten Gases das erste Gas bzw. das Mischgas zu verdrängen.In the method according to the invention, mixing of the filling material with the air or the first gas is largely prevented and it is therefore not necessary to displace the first gas or the mixed gas by larger amounts of the second gas.

Der erfindungsgemässe Vorschlag erlaubt auch ein verhältinsmässig rasches Arbeiten, weil der Verdrängungskörper mit dazu beiträgt, die Staubbildung zu unterdrücken.The proposal according to the invention also allows relatively quick work because the displacement body also helps to suppress the formation of dust.

Während des Füllvorganges entfernt sich die Füllvorrichtung und auch der Verdrängungskörper entsprechend der Füllhöhe vom Boden des Behältnisses, d.h. also, dass entweder die Füllvorrichtung heb-und senkbar angeordnet ist, oder dass das Verpackungsbehältnis sich nach oben und unten bewegen lässt. Auf diese Weise wird erreicht, dass das Füllgut sich beim Austritt aus der Füllvorrichtung nicht oder nur wenig über der Oberfläche des bereits eingefüllten Füllgutes befindet. Das Stauben und der Verlust an Verpakkungsgut tritt praktisch nicht auf.During the filling process, the filling device and also the displacement body move away from the bottom of the container according to the filling height, i.e. This means that either the filling device can be raised and lowered, or that the packaging container can be moved up and down. In this way it is achieved that the filling material is not or only slightly above the surface of the filling material already filled when it emerges from the filling device. Dusting and the loss of packaged goods practically does not occur.

Die Erfindung betrifft weiter eine Vorrichtung zum Füllen von vorgefertigten, relativ steifen Behältnissen mit Füllgut unter Austausch eines ersten Gases, z.B. Luft, gegen ein zweites Gas, beispielsweise ein Inertgas, mit einer das Füllgut abgebenden Füllvorrichtung, die bis auf den Boden des Behältnisses absenkbar und während des Füllvorganges anhebbar ist, und mit einer Vorrichtung zum Einleiten des zweiten Gases in das Behältnis während des Füllvorganges.The invention further relates to a device for filling prefabricated, relatively rigid containers with filling material by exchanging a first gas, e.g. Air, against a second gas, for example an inert gas, with a filling device which delivers the filling material and which can be lowered to the bottom of the container and raised during the filling process, and with a device for introducing the second gas into the container during the filling process.

Eine derartige Vorrichtung ist in der FR-A-14 02 724 beschrieben.Such a device is described in FR-A-14 02 724.

Die erfindungsgemässe Vorrichtung ist dadurch gekennzeichnet, dass die Füllvorrichtung zum Einfüllen von pulverförmigen Füllgut mit einem Verdrängungskörper verbunden ist, dessen Querschnitt dem Querschnitt des Behältnisses angepasst ist.The device according to the invention is characterized in that the filling device for filling powdered filling material is connected to a displacement body, the Cross section is adapted to the cross section of the container.

Der Verdrängungskörper kann dabei insbesondere scheibenförmig sein. Bei einer anderen Ausbildungsform der Erfindung füllt der Verdrängungskörper zu Beginn des Füllvorganges das Behältnis ganz aus.The displacement body can in particular be disk-shaped. In another embodiment of the invention, the displacement body completely fills the container at the beginning of the filling process.

Bei einer Ausbildungsform der Erfindung sind im Verdrängungskörper Zuleitungen für das zweite Gas vorgesehen. Insbesondere umgibt der Verdrängungskörper ein Füllrohr der Füllvorrichtung.In one embodiment of the invention, supply lines for the second gas are provided in the displacement body. In particular, the displacement body surrounds a filling tube of the filling device.

Günstig ist es, wenn das untere Ende der Füllvorrichtung bzw. des Füllrohres einen steuerbaren Verschluss aufweist. Eine solche Anordung verbessert auch die Genauigkeit der Dosierung des Füllgutes. Dabei kann das Füllrohr als Teil einer Dosiervorrichtung ausgebildet sein bzw. das Füllrohr umschliesst einen Schneckenförderer.It is favorable if the lower end of the filling device or the filling tube has a controllable closure. Such an arrangement also improves the accuracy of the dosage of the filling material. The filling pipe can be designed as part of a metering device or the filling pipe encloses a screw conveyor.

Der Verdrängungskörper, den die Erfindung benützt, hat insbesondere auch die Wirkung, dass das Füllgut beim Füllvorgang verdichtet wird. Der Gasgehalt des Füllgutes wird vermindert.The displacement body, which the invention uses, has in particular the effect that the filling material is compressed during the filling process. The gas content of the product is reduced.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen:

  • Fig. 1 eine Darstellung einer Füllvorrichtung mit einem scheibenförmigen Verdrängungskörper zu Beginn des Füllvorgangs,
  • Fig. 2 eine Darstellung einer Füllvorrichtung am Ende des Füllvorgangs,
  • Fig. 3 eine Darstellung einer Füllvorrichtung nach Abschluss des Füllvorgangs,
  • Fig. 4 eine Darstellung einer Füllvorrichtung mit einem zylindrischen Verdrängungskörper,
  • Fig. 5 eine Darstellung einer Füllvorrichtung mit Verdrängungskörper und Gaszuleitungen,
  • Fig. 6 eine Darstellung einer Füllvorrichtung mit steuerbarem Verschluss und
  • Fig. 7 eine Draufsicht auf einen Drehtellerverschluss.
In the drawing, an embodiment of the invention is shown. Show it:
  • 1 is an illustration of a filling device with a disc-shaped displacement body at the beginning of the filling process,
  • 2 is an illustration of a filling device at the end of the filling process,
  • 3 is an illustration of a filling device after completion of the filling process,
  • 4 is an illustration of a filling device with a cylindrical displacement body,
  • 5 is an illustration of a filling device with displacement body and gas supply lines,
  • Fig. 6 is an illustration of a filling device with controllable closure and
  • Fig. 7 is a plan view of a turntable lock.

Zu Beginn des Füllvorganges ist das Füllrohr 6 der Füllvorrichtung 3 bis fast auf den Boden 4 des Behältnisses 1 abgesenkt. Das Behältnis 1 nimmt das Füllgut 2 auf. Das Füllgut 2 befindet sich in einem Vorratsbehälter 9, an den sich ein Schnekkenförderer 7 anschliesst. Der Schneckenförderer 7 wird von der Welle 11 angetrieben. Das Füllgut 2 gelangt durch den Schneckenförderer 7 in gleichmässigem Strom auf den Boden 4 des Verpackungsbehältnisses 1. Im Verlaufe des Füllvorgangs hebt sich die Füllvorrichtung 3 mit dem Füllrohr 6 und dem Verdrängungskörper 5 aus dem Verpackungsbehältnis 1, wie es der Füllhöhe des Füllgutes 2 entspricht. Eine andere Variante des Verfahrens sieht vor, dass das Behältnis 1 abgesenkt wird, entsprechend der Füllhöhe des Füllgutes 2. Die Absenkgeschwindigkeit des Behältnisses 1 bzw. die Hebegeschwindigkeit der Füllvorrichtung 3 bestimmt sich aus der Geschwindigkeit mit der das Füllgut 2 in das Behältnis 1 gelangt.At the beginning of the filling process, the filling tube 6 of the filling device 3 is almost lowered to the bottom 4 of the container 1. The container 1 receives the filling material 2. The filling material 2 is located in a storage container 9, to which a screw conveyor 7 is connected. The screw conveyor 7 is driven by the shaft 11. The filling material 2 reaches the bottom 4 of the packaging container 1 through the screw conveyor 7 in a uniform flow. In the course of the filling process, the filling device 3 with the filling tube 6 and the displacement body 5 lifts out of the packaging container 1, as corresponds to the filling level of the filling material 2. Another variant of the method provides that the container 1 is lowered, corresponding to the filling height of the filling material 2. The lowering speed of the container 1 or the lifting speed of the filling device 3 is determined from the speed with which the filling material 2 reaches the container 1.

In Fig. 2 und 3 ist der Abschluss des Füllvorganges dargestellt. Das Behältnis 1 ist nun bis obenhin gefüllt. Die Füllvorrichtung 3 wird aus dem Behältnis entfernt. Nach dem Entfernen der Füllvorrichtung 3 kann ein Deckel 12 auf das Behältnis 1 aufgebracht und in bekannter Weise das Behältnis 1 verschlossen werden. Das gefüllte, verschlossene Behältnis wird durch ein neues, leeres ersetzt, worauf der Vorgang wiederholt wird.2 and 3, the completion of the filling process is shown. The container 1 is now filled to the top. The filling device 3 is removed from the container. After the filling device 3 has been removed, a lid 12 can be applied to the container 1 and the container 1 can be closed in a known manner. The filled, closed container is replaced by a new, empty one, after which the process is repeated.

Fig. 1 bis Fig. 3 zeigen ein Ausführungsbeispiel der Erfindung mit einem Verdrängungskörper 5 in Scheibenform. Die Scheibe ist der Form des Behältnisses 1, also z.B. einer Dose, angepasst. Durch das Einbringen des Verdrängungskörpers 5 wird das im Behältnis 1 enthaltene erste Gas verdrängt. Der Verdrängungskörper 5 ist fest mit der Füllvorrichtung 3 verbunden und wird mit dieser im Verlaufe des Füllvorganges angehoben. Durch das eingebrachte Füllgut 1 wird die Luft weiter verdrängt.1 to 3 show an exemplary embodiment of the invention with a displacement body 5 in the form of a disk. The disc is in the form of the container 1, e.g. a can, adjusted. The first gas contained in the container 1 is displaced by the introduction of the displacement body 5. The displacement body 5 is fixedly connected to the filling device 3 and is raised with this in the course of the filling process. The air is further displaced by the introduced filling material 1.

Vor dem Einbringen des Füllgutes 2 in das Behältnis 1 kann das Füllgut durch Zuleitungen 8 (vgl. Fig. 1) im Vorratsbehälter 9 mit einem zweiten Gas, z.B. etwa einem Inertgas, begast werden. Bei diesem Verfahren gelangt bereits begastes Füllgut in das Behältnis 1.Before the filling material 2 is introduced into the container 1, the filling material can be fed through supply lines 8 (see FIG. 1) in the storage container 9 with a second gas, e.g. such as an inert gas. In this method, already gassed filling material gets into the container 1.

Der Verdrängungskörper 5 bewirkt auch eine Verdichtung des Füllgutes 2. Der Verdrängungskörper 5 kann auch, wie in Fig. 4 gezeigt, z.B. eine zylindrische Form besitzen, die die Dose ausfüllt.The displacement body 5 also causes the filling material 2 to be compressed. The displacement body 5 can also, as shown in FIG. have a cylindrical shape that fills the can.

Werden besondere Ansprüche an das Verfahren gestellt, also ein optimaler Gasaustausch gewünscht, so werden Leitungen 10 (vgl. Fig. 5 und 6) für das zweite Gas im Verdrängungskörper 5 vorgesehen. Diese Gasleitungen können an der Unterseite des Verdrängungskörpers 5 münden, oder aber eine Einmündung in das Füllrohr 6 besitzen, was bewirkt, dass das Füllgut 2 vor Austritt aus dem Füllrohr 6 nochmals begast wird. Durch eine Kombination von Verdrängungskörper, Gasleitung im Verdrängungskörper 5', vorherige Begasung durch die Zuleitung 8 im Vorratsgefäss 9 und eine Spülung mit Inertgas vor dem Füllvorgang wird ein optimaler Gasaustausch erreicht.If special demands are placed on the method, that is, an optimal gas exchange is desired, lines 10 (see FIGS. 5 and 6) for the second gas are provided in the displacement body 5. These gas lines can open on the underside of the displacement body 5, or else have an opening into the filling pipe 6, which causes the filling material 2 to be gassed again before it exits the filling pipe 6. An optimal gas exchange is achieved by a combination of displacement body, gas line in the displacement body 5 ', prior gassing through the supply line 8 in the storage vessel 9 and flushing with inert gas before the filling process.

Beim Ausführungsbeispiel, das in der Fig. 6 dargestellt ist, ist eine Dosiervorrichtung 20 gezeigt, an deren unteres Ende das Füllrohr 6 anschliesst. Die Mittel zur Einbringung des Füllgutes in die Dosiervorrichtung und zur Dosierung selbst sind nicht näher dargestellt. Das Füllgut kann dabei zum Beispiel mittels einer Waage abgemessen werden, oder auch volumenmässig bestimmt werden.In the exemplary embodiment which is shown in FIG. 6, a metering device 20 is shown, at the lower end of which the filling pipe 6 is connected. The means for introducing the filling material into the metering device and for metering itself are not shown in more detail. The contents can be measured, for example, using a scale, or determined in terms of volume.

Das untere Ende des Füllrohres 6 ist durch einen Ventilteller 25 verschlossen, der einen steuerbaren Verschluss bildet. Dieser Ventilteller 25 wird von der Stange 22 getragen, die im Innern des Rohres 6 und der Dosiervorrichtung 20 verläuft. Durch Absenken der Stange 22 wird der Verschluss 21 geöffnet, und durch den Spalt 23 gelangt das Füllgut in das Behältnis 1.The lower end of the filling tube 6 is closed by a valve plate 25, which forms a controllable closure. This valve plate 25 is carried by the rod 22, which runs inside the tube 6 and the metering device 20. By lowering the rod 22, the closure 21 is opened, and the filling material enters the container 1 through the gap 23.

Der Ventilteller des Verschlusses 21 kann auch als Schleuderteller ausgebildet sein, und über die Stange 22, die dann als Welle wirkt, angetrieben sein. Hierdurch lässt sich die Einfüllung des Füllgutes in das Behältnis 1 beschleunigen.The valve plate of the closure 21 can also be designed as a centrifugal plate and driven via the rod 22, which then acts as a shaft. In this way, the filling of the filling material into the container 1 can be accelerated.

Bei der Ausführungsform gemäss Fig. 7 ist der Verschluss 21 als drehbare Scheibe ausgebildet. Diese Scheibe 27 besitzt sektorartige Öffnungen 24, und die Scheibe 27 wirkt mit einer im wesentlichen gleichartig ausgebildeten, am unteren Ende des Rohres 6 angeordneten Verschlussplatte 26 zusammen, die ebenfalls Öffnungen 28 besitzt. Die Scheibe 27 kann mittels der Stange 22 beispielsweise um einen rechten Winkel gedreht werden, so dass die Öffnungen 24 der Scheibe 27 und die Öffnungen 28 der Verschlussplatte 26 in Deckung kommen, wodurch der Verschluss 21 geöffnet wird.In the embodiment according to FIG. 7, the closure 21 is designed as a rotatable disk. This disc 27 has sector-like openings 24, and the disc 27 interacts with an essentially similarly designed closure plate 26 which is arranged at the lower end of the tube 6 and also has openings 28. The disc 27 can be rotated by means of the rod 22, for example by a right angle, so that the openings 24 of the disc 27 and the openings 28 of the closure plate 26 come into register, whereby the closure 21 is opened.

Die Erfindung ist insbesondere dann anwendbar, wenn beispielsweise Dosen mit pulverförmigen Nahrungsmitteln, z.B. mit Milcherzeugnissen oder dergleichen gefüllt werden sollen. Dieses Füllgut sollte unter Sauerstoffabschluss verpackt werden, um die schädlichen Einwirkungen des Sauerstoffs auf die Haltbarkeit auszuschliessen. In der Regel geht es also bei der Erfindung darum, Sauerstoff durch ein Inertgas, z.B. Stickstoff zu ersetzen. Die Erfindung ist aber auch anwendbar, wenn andere Gase als Luft oder Sauerstoff durch ein zweites Gas ausgetauscht werden sollen. Das zweite Gas kann beispielsweise auch eine sterilisierende Wirkung besitzen mit dem Ziel, das Füllgut möglichst lange steril zu halten. Die Erfindung ist aber auch anwendbar, beim Austausch von unerwünschten Reaktionsgasen gegen ein zweites Gas, oder auch dann, wenn es darum geht, durch das zweite Gas während des Verschlusses der Behältnisse eine Reaktion mit dem Füllgut herbeizuführen.The invention is particularly applicable when, for example, cans containing powdered foods, e.g. to be filled with milk products or the like. This filling material should be packed under exclusion of oxygen in order to exclude the harmful effects of oxygen on the shelf life. As a rule, the invention is concerned with oxygen through an inert gas, e.g. To replace nitrogen. However, the invention is also applicable when gases other than air or oxygen are to be exchanged for a second gas. The second gas can also have a sterilizing effect, for example, with the aim of keeping the contents sterile as long as possible. However, the invention can also be used when exchanging undesired reaction gases for a second gas, or also when it comes to bringing about a reaction with the filling material through the second gas during the closure of the containers.

Claims (9)

1. Method for filling prefabricated, relatively rigid containers (1) with filling material (2) with the replacement of a first gas, e.g. air, by a second gas, for example an inert gas, a filling device (3) which dispenses the filling material (2) being lowered at the beginning of the filling procedure as far as the base (4) of the container (1) and being raised during the filling procedure, and the second gas being introduced simultaneously with the filling material into the container, characterized in that, at the beginning of the procedure for filling with powdered filling material (2), a displacement body (5, 5') is introduced into the container (1), the cross section of which is matched to the cross section of the container (1) and which is raised during the filling procedure.
2. Device for filling prefabricated, relatively rigid containers (1) with filling material (2) with the replacement of a first gas, e.g. air, by a second gas, for example an inert gas, having a filling device (3) which dispenses the filling material (2) and can be lowered as far as the base of the container (1) and can be raised during the filling procedure, and having a device for introducing the second gas into the container (1) during the filling procedure, characterized in that the filling device (3) for introducing powdered filling material (2) is conected to a displacement body (5, 5'), the cross section of which is matched to the cross section of the container (1).
3. Device according to Claim 2, characterized in that the displacement body (5) is disc-shaped.
4. Device according to Claim 2, characterized in that, at the beginning of the filling procedure, the displacement body (5') completely fills the container (1).
5. Device according to one of Claims 2 to 4, characterized in that feed lines (10) for the second gas are provided in the displacement body (5').
6. Device according to one of Claims 2 to 5, characterized in that the displacement body (5, 5') surrounds a filler pipe (6) of the filling device (3).
7. Device according to Claim 6, characterized in that the lower end of the filling device (3) or of the filler pipe (6) has a controllable closure (21).
8. Device according to Claim 6 or 7, characterized in that the filler pipe (6) is designed as part of a metering device (20).
9. Device according to one of Claims 6, 7 or 8, characterized in that the filler pipe (6) surrounds a screw conveyor (7).
EP85115232A 1984-12-06 1985-11-30 Method and apparatus for filling rigid containers Expired EP0184166B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85115232T ATE41637T1 (en) 1984-12-06 1985-11-30 METHOD AND DEVICE FOR FILLING RIGID CONTAINERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3444515 1984-12-06
DE19843444515 DE3444515A1 (en) 1984-12-06 1984-12-06 METHOD FOR FILLING STIFF CONTAINERS

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EP0184166A1 EP0184166A1 (en) 1986-06-11
EP0184166B1 true EP0184166B1 (en) 1989-03-22

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AT (1) ATE41637T1 (en)
DE (2) DE3444515A1 (en)

Cited By (3)

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US5961000A (en) 1996-11-14 1999-10-05 Sanfilippo; James J. System and method for filling and sealing containers in controlled environments
DE102011103876B3 (en) * 2011-06-10 2012-03-15 Leibinger Smb Technik Gmbh Device for filling cans with beverage, has circular saw with peripheral edge lying at inner cover surface of container, where air is blown provided between circular saw and bottom of container in downward motion
EP3345863B1 (en) * 2017-01-05 2023-06-21 Leibinger GmbH Filling system and method for filling cans

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GB2217672A (en) * 1988-04-27 1989-11-01 Metal Box Plc Methods and apparatus for purging oxygen during filling of containers
US5617705A (en) * 1993-09-16 1997-04-08 Sanfilippo; James J. System and method for sealing containers
EP0758977B1 (en) * 1994-05-17 2000-08-16 James J. Sanfilippo System and method for filling and sealing containers in controlled environments
IT1301771B1 (en) * 1998-06-22 2000-07-07 Laffon Spa MECHANICAL FILLING PROCEDURE OF A CONTAINER FOR COSMETIC PRODUCTS.
NL2003319C2 (en) 2009-07-31 2011-02-02 Bag Treat Holland B V DEVICE FOR PACKAGING DIP.
EP2444365A1 (en) * 2010-10-20 2012-04-25 Carlsberg Breweries A/S Method of filling a pressure generating device
US20140238536A1 (en) * 2011-10-03 2014-08-28 Kamakura Engineering Ltd Powder or granular material feeding apparatus

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FR1402724A (en) * 1964-08-03 1965-06-11 Jagenberg Werke Ag Method and device for packaging and delivering liquids
US3708952A (en) * 1971-08-16 1973-01-09 Rexham Corp Packaging machine with splitter bar fill
US4445548A (en) * 1982-01-25 1984-05-01 Franz Neumann Food portioning machine
US4489768A (en) * 1982-09-03 1984-12-25 Wisconsin Dairies Cooperative Distribution device for butter filling system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5961000A (en) 1996-11-14 1999-10-05 Sanfilippo; James J. System and method for filling and sealing containers in controlled environments
DE102011103876B3 (en) * 2011-06-10 2012-03-15 Leibinger Smb Technik Gmbh Device for filling cans with beverage, has circular saw with peripheral edge lying at inner cover surface of container, where air is blown provided between circular saw and bottom of container in downward motion
EP3345863B1 (en) * 2017-01-05 2023-06-21 Leibinger GmbH Filling system and method for filling cans

Also Published As

Publication number Publication date
EP0184166A1 (en) 1986-06-11
DE3444515A1 (en) 1986-06-19
ATE41637T1 (en) 1989-04-15
DE3568971D1 (en) 1989-04-27

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