EP3921239B1 - Twin-tube bag forming, filling and sealing machine comprising metering device and transfer system - Google Patents

Twin-tube bag forming, filling and sealing machine comprising metering device and transfer system Download PDF

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Publication number
EP3921239B1
EP3921239B1 EP20706389.2A EP20706389A EP3921239B1 EP 3921239 B1 EP3921239 B1 EP 3921239B1 EP 20706389 A EP20706389 A EP 20706389A EP 3921239 B1 EP3921239 B1 EP 3921239B1
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EP
European Patent Office
Prior art keywords
transfer
filling
twin
tubular bag
bag machine
Prior art date
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EP20706389.2A
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German (de)
French (fr)
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EP3921239A1 (en
Inventor
Volker Dersch
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Rovema GmbH
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Rovema GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
    • B65B65/003—Packaging lines, e.g. general layout
    • B65B65/006—Multiple parallel packaging lines
    • 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
    • B65B1/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B1/10—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders
    • B65B1/12—Methods of, or means for, filling the material into the containers or receptacles by rotary feeders of screw type
    • 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
    • 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
    • B65B1/36—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods
    • 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
    • B65B37/00—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged
    • B65B37/005—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged by endless belts or chains
    • 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
    • B65B59/00—Arrangements to enable machines to handle articles of different sizes, to produce packages of different sizes, to vary the contents of packages, to handle different types of packaging material, or to give access for cleaning or maintenance purposes
    • B65B59/04—Machines constructed with readily-detachable units or assemblies, e.g. to facilitate maintenance
    • 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
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • 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
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/02—Plurality of alternative input or output lines or plurality of alternative packaging units on the same packaging line for improving machine flexibility
    • 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
    • B65B2220/00—Specific aspects of the packaging operation
    • B65B2220/14—Adding more than one type of material or article to the same package

Definitions

  • the invention relates to a flow-wrapping machine with a dosing device, as used for packaging filling goods.
  • the tubular bag machine is designed as a double-tube tubular bag machine and is therefore equipped with two longitudinal welding devices to form two parallel film tubes. These two film tubes are each sealed crosswise in the tubular bag machine using two cross-sealing jaws that move against each other and weld the film tube crosswise, so that two strands of tubular bags can be produced continuously or intermittently.
  • the tubular bags are filled with the filling material using a filling device.
  • the individual tubular bags are separated from one another using a separating device.
  • a dosing device is arranged upstream of the filling device.
  • portions of the filling material are separated in order to fill the two filling devices of the double-tube flow-wrapping machine with the specified quantities, for example a specified filling weight, a specified filling volume or a specified filling number.
  • the dosing device works synchronously with the flow-wrapping machine so that the amount of filling material required to fill the flow-wrapping machine can be filled through the filling device at exactly the right time. This synchronous operation between the dosing device and the flow-wrapping machine is increasingly leading to problems.
  • a first disadvantage of synchronous operation between the dosing device and the tubular bag machine is that every small process disturbance during dosing in the dosing device leads to a standstill or an idle cycle in the double-tube tubular bag machine.
  • the synchronicity between the tubular bag machine and the dosing device can only be guaranteed with great effort.
  • high-performance dosing devices must be used, but these are very expensive and require a lot of maintenance.
  • Another disadvantage of synchronous operation between the tubular bag machine and the dosing device is that the dosing device has to be arranged above the filling device according to the prior art. Since the dosing device requires an ever larger installation space to maintain the necessary dosing performance, this results in an ever higher room height, which is required for the installation of the tubular bag machine with the dosing device arranged above it.
  • a generic form fill and seal machine with dosing device is in the EN 10 2011 106352 A1 and the US 2017/113825 A1 described.
  • the generic double-tube flow-wrapping machine is based on the basic idea that a transfer device with several transfer containers is provided between the two filling devices of the double-tube flow-wrapping machine and the dosing device. In other words, this means that the dosing of the necessary filling quantity of the filling material no longer takes place directly by dispensing the filling material from the dosing device into the two filling devices of the flow-wrapping machine.
  • the transfer device comprises an input station in which the predetermined filling quantities for each filling of the individual flow-wrapping bags are transferred from the dosing device into a transfer container. The transfer containers are then transported along a transfer route to two discharge stations.
  • the transfer containers are then emptied and the filling material from the transfer containers is transferred to the two filling devices of the flow-wrapping machine.
  • the transfer container then travels back along a return transfer route to the input station and can be filled again from the dosing device there.
  • the transfer device decouples the dosing process from the tubular bag filling process, so that the dosing device and the tubular bag machine no longer have to be operated in synchronous operation.
  • This decoupling makes it particularly It is possible that disturbances in one of the two processes do not immediately cause a disturbance in the other process.
  • the transfer device makes it possible to make the dosing device independent of the location of the tubular bag machine, so that it is not absolutely necessary to arrange the dosing device above the filling device of the tubular bag machine.
  • the product drop height can also be reduced and the performance of the process increased.
  • Product protection for fragile products is also increased.
  • Transfer containers with a non-constant diameter can be used to increase the emptying speed.
  • the distance between the two delivery stations is variable.
  • the geometry of the delivery stations can be adapted to the variable geometry of the double-tube flow-wrapping machine.
  • this can be compensated for by changing the distance between the two delivery stations.
  • the type of flow-wrapping machine combined with the transfer device is basically arbitrary.
  • the arrangement of the transfer device between the dosing device and the flow-wrapping machine offers particularly great advantages in cases in which a vertical double-tube flow-wrapping machine is used.
  • the design of the filling device is basically arbitrary.
  • the filling device is designed in the form of a format tube, with the film tube being guided on the outside of the format tube.
  • the filling material can then be filled into the still open tubular bag from above under the influence of gravity through the inner cross-section of the format tube.
  • the dosing device Basically, all gravimetric or volumetric dosing devices or dosing devices that work with a counting method can be used. Depending on how the dosing is carried out, either a scale or a conveyor screw or a counter or a volume dosing device can be used as the dosing device.
  • the transfer device is controlled by its own transfer control.
  • This transfer control can control the transfer process in the input station independently of the transfer process in the output station, thus ensuring true decoupling between the two processes.
  • the transfer control can change the conveying speed of the transfer containers along the transfer line and/or along the return transfer line.
  • speed variations can easily compensate for minor delays in the dosing area in particular in order to ensure that the pre-dosed amount of the filling material is delivered to the delivery station on time, even if minor process disturbances occur.
  • the transfer control can change the conveying speed of individual transfer containers independently of the conveying speed of the other transfer containers.
  • the transfer device can be equipped with at least one buffer. At least one filled or unfilled transfer container can be temporarily stored in this buffer. If a minor process disruption occurs, which for example prevents a transfer container from being filled on time, the transfer container temporarily stored in the buffer can be removed and introduced into the transfer line or the return transfer line. In particular, it can be advantageous to provide a buffer in front of each delivery station.
  • a dosing device is connected to a double-tube tubular bag machine by means of the transfer device.
  • the transfer device comprises at least two input stations, at each of which filling material can be transferred from a dosing device to the transfer containers.
  • the necessary dosing capacity it is particularly possible for the necessary dosing capacity to be distributed over several dosing devices, so that, for example, a high-performance double-tube tubular bag machine can be supplied with the pre-dosed filling quantities from two or more dosing devices.
  • the individual dosing devices can then each have a correspondingly lower dosing capacity, so that no high-performance dosing devices have to be used, in particular for dosing on high-performance double-tube tubular bag machines.
  • the dosing of the filling material using several dosing devices and their transfer to at least two different input stations in the transfer containers is particularly advantageous when the tubular bags are to be filled with a mixed filling, for example a nut mixture.
  • a mixed filling for example a nut mixture.
  • different filling materials can be filled into the transfer containers at the various input stations, whereby the individual transfer containers then have the corresponding desired mixture of the filling material.
  • the individual dosing of the subcomponents that make up the mixture also increases the dosing accuracy of the proportions of the subcomponents in the mixture.
  • the transfer device can also comprise more than one pair of two delivery stations. At each pair of two delivery stations, the filling material or the mixed material can then be transferred from the transfer containers to the filling devices of different double-tube flow-wrapping machines.
  • complex transfer systems can also be formed in this way, in which a large number of possibly different dosing devices are linked to a large number of different flow-wrapping machines, so that an optimized capacity balance between the dosing capacities and the filling capacities is possible.
  • Fig.1 shows a double-tube tubular bag machine 01 for the production of tubular bags 02.
  • a packaging film 03 is formed into a tube around two filling devices 04, which are designed in the manner of format tubes, and then sealed lengthwise.
  • the film tubes 05 thus formed are sealed crosswise using cross-sealing jaws 06 and thereby closed at the upper and lower ends.
  • the tubular bags 02 in the two tubular bag strands, which are still unsealed at the upper end, are filled with a filling material by the filling devices 04 during the filling process in the double-tube tubular bag machine 01, whereby the filling material falls from above through the inner cross section of the format tubes into the still open tubular bags.
  • a dosing device 07 is arranged upstream of the double-tube tubular bag machine 01, which in the embodiment shown is designed in the form of a dosing screw 08 with a corresponding drive. By suitably driving the dosing screw 08, a predetermined filling volume of the filling material can be dosed out of a filling material hopper 09.
  • a transfer device 10 is arranged between the double-tube tubular bag machine 01 and the dosing device 07.
  • the transfer device 10 comprises an input station 11 and two delivery stations 12.
  • transfer containers 13 from the dosing device 07 can be filled with the pre-dosed amount of the filling material.
  • the transfer containers 13 are then transported along a transfer path 14 to the two delivery stations 12.
  • the transfer containers 13 are emptied so that the pre-dosed amount of the filling material falls from above into the opened tubular bags through the filling devices 04.
  • Fig.2 shows the transfer device 10 with the input station 11 and the two output stations 12 in a schematic view from above.
  • the transfer containers 13 are transported along a return transfer path 15 back to the input station 11 after being emptied in the delivery stations 12, so that they can be filled again there with a pre-dosed amount of the filling material.
  • the transfer path 14 also contains a buffer 16 in which several transfer containers 13 can be temporarily stored. Switch elements 17 are used to fill or remove the transfer containers 13 in the buffer 16.
  • Fig.3 shows an alternative embodiment 18 of a transfer device.
  • the basic structure of the transfer device 18 corresponds to the structure of the transfer device 10, wherein the transfer device 18 comprises an additional input station 19.
  • the transfer containers 13 can in turn be filled with pre-dosed quantities of a filling material using a further dosing device 07. It is conceivable that different transfer containers are filled with filling material in the input stations 11 and 19 in order to increase the required dosing capacity by using two dosing devices.
  • the transfer containers 13 in the input stations 11 and 19 can also be filled with different filling materials so that each transfer container contains a pre-dosed mixture of filling materials after leaving the input station 19.
  • Fig.4 shows a third embodiment 20 of a transfer device.
  • the transfer device 20 differs from the transfer device 18 by the additional use of a further pairing of two delivery stations 21.
  • the transfer device 20 can be used to fill the transfer containers 13 with filling material in the input stations 11 and 19 using different dosing devices, and the filling materials from the transfer containers 13 can then be delivered to two different double-tube tubular bag machines 01 at the two pairings of two delivery stations 12 and 21 each.
  • the transfer devices include further input stations or delivery stations, complex transfer systems can be implemented, consisting of a large number of dosing devices and a large number of tubular bag machines.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Basic Packing Technique (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)

Description

Die Erfindung betrifft eine Schlauchbeutelmaschine mit Dosiervorrichtung, wie sie zur Verpackung von Füllgütern eingesetzt wird.The invention relates to a flow-wrapping machine with a dosing device, as used for packaging filling goods.

Die Schlauchbeutelmaschine ist dabei in der Art einer Doppelrohr-Schlauchbeutelmaschine ausgebildet und somit mit zwei Längsschweißeinrichtung zur Bildung von zwei parallelen Folienschläuchen ausgestattet. Diese beiden Folienschläuche werden in der Schlauchbeutelmaschine jeweils mittels zweier gegeneinander beweglichen und dabei den Folienschlauch quer verschweißender Quersiegelbacken quergesiegelt, so dass kontinuierlich oder intermittierend zwei Stränge von Schlauchbeuteln produziert werden können. Vor dem Verschließen der Schlauchbeutel werden die Schlauchbeutel mittels jeweils einer Befüllvorrichtung mit dem Füllgut befüllt. Nach dem Quersiegeln der Schlauchbeutel werden die einzelnen Schlauchbeutel mittels einer Trenneinrichtung voneinander vereinzelt.The tubular bag machine is designed as a double-tube tubular bag machine and is therefore equipped with two longitudinal welding devices to form two parallel film tubes. These two film tubes are each sealed crosswise in the tubular bag machine using two cross-sealing jaws that move against each other and weld the film tube crosswise, so that two strands of tubular bags can be produced continuously or intermittently. Before the tubular bags are closed, the tubular bags are filled with the filling material using a filling device. After the tubular bags are cross-sealed, the individual tubular bags are separated from one another using a separating device.

Bei bekannten Doppelrohr-Schlauchbeutelmaschine ist der Befüllvorrichtung eine Dosiervorrichtung vorgeordnet. In der Dosiervorrichtung werden jeweils Portionen des Füllguts vereinzelt, um die beiden Befüllvorrichtungen der Doppelrohr-Schlauchbeutelmaschine mit den vorgegebenen Mengen, beispielsweise einem vorgegebenen Füllgewicht, einem vorgegebenen Füllvolumen oder einer vorgegebenen Füllanzahl zu befüllen. Bei den bekannten Schlauchbeutelmaschinen arbeitet die Dosiervorrichtung dabei synchron zur Schlauchbeutelmaschine, damit jeweils zum exakt erforderlichen Zeitpunkt die für die Befüllung des Schlauchbeutels notwendige Menge des Füllguts durch die Befüllvorrichtung eingefüllt werden kann. Diese synchrone Arbeitsweise zwischen Dosiervorrichtung und Schlauchbeutelmaschine führt zunehmend zu Problemen.In known double-tube flow-wrapping machines, a dosing device is arranged upstream of the filling device. In the dosing device, portions of the filling material are separated in order to fill the two filling devices of the double-tube flow-wrapping machine with the specified quantities, for example a specified filling weight, a specified filling volume or a specified filling number. In the known flow-wrapping machines, the dosing device works synchronously with the flow-wrapping machine so that the amount of filling material required to fill the flow-wrapping machine can be filled through the filling device at exactly the right time. This synchronous operation between the dosing device and the flow-wrapping machine is increasingly leading to problems.

Ein erster Nachteil des Synchronbetriebs zwischen Dosiervorrichtung und Schlauchbeutelmaschine liegt darin, dass jede kleine Prozessstörung bei der Dosierung in der Dosiervorrichtung zu einem Stillstand oder zu einem Leertakt in der Doppelrohr-Schlauchbeutelmaschine führt. Insbesondere bei Hochleistungs-Schlauchbeutelmaschinen mit einer Leistung von mehr als 400 Schlauchbeuteln pro Minute kann die Synchronität zwischen Schlauchbeutelmaschine und Dosiervorrichtung nur noch sehr aufwendig gewährleistet werden. Um die notwendige Dosierleistung zu erbringen müssen Hochleistungs-Dosiervorrichtungen eingesetzt werden, die aber sehr teuer und wartungsintensiv sind.A first disadvantage of synchronous operation between the dosing device and the tubular bag machine is that every small process disturbance during dosing in the dosing device leads to a standstill or an idle cycle in the double-tube tubular bag machine. In particular with high-performance tubular bag machines with an output of more than 400 tubular bags per minute, the synchronicity between the tubular bag machine and the dosing device can only be guaranteed with great effort. In order to achieve the necessary dosing performance, high-performance dosing devices must be used, but these are very expensive and require a lot of maintenance.

Ein weiterer Nachteil des Synchronbetriebs zwischen Schlauchbeutelmaschine und Dosiervorrichtung liegt darin, dass die Dosiervorrichtung dazu gemäß dem vorbekannten Stand der Technik oberhalb der Befüllvorrichtung angeordnet werden muss. Da die Dosiervorrichtung zur Aufrechterhaltung der notwendigen Dosierleistung einen immer größeren Bauraum benötigt, ergibt sich daraus eine immer höhere Raumhöhe, die für die Aufstellung der Schlauchbeutelmaschine mit der darüber angeordneten Dosiervorrichtung erforderlich ist.Another disadvantage of synchronous operation between the tubular bag machine and the dosing device is that the dosing device has to be arranged above the filling device according to the prior art. Since the dosing device requires an ever larger installation space to maintain the necessary dosing performance, this results in an ever higher room height, which is required for the installation of the tubular bag machine with the dosing device arranged above it.

Eine gattungsgemäße Schlauchbeutelmaschine mit Dosiervorrichtung ist in der DE 10 2011 106352 A1 und der US 2017/113825 A1 beschrieben.A generic form fill and seal machine with dosing device is in the EN 10 2011 106352 A1 and the US 2017/113825 A1 described.

Ausgehend von diesem Stand der Technik ist es deshalb Aufgabe der vorliegenden Erfindung eine neue Doppelrohr-Schlauchbeutelmaschine vorzuschlagen, die die Nachteile des vorbekannten Stands der Technik vermeidet.Based on this prior art, it is therefore the object of the present invention to propose a new double-tube form, fill and seal machine which avoids the disadvantages of the previously known prior art.

Vorteilhafte Ausführungsformen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the subclaims.

Die gattungsgemäße Doppelrohr-Schlauchbeutelmaschine beruht auf dem Grundgedanken, dass zwischen den beiden Befüllvorrichtung der Doppelrohr-Schlauchbeutelmaschine und der Dosiervorrichtung eine Transfereinrichtung mit mehreren Transferbehältern vorgesehen ist. Dies bedeutet also mit anderen Worten, dass die Dosierung der notwendigen Füllmenge des Füllguts nicht mehr unmittelbar durch Abgabe des Füllguts aus der Dosiervorrichtung in die beiden Befüllvorrichtungen der Schlauchbeutelmaschine erfolgt. Stattdessen umfasst die Transfereinrichtung eine Eingabestation, in der die vorgegebenen Füllmengen für jede Befüllung der einzelnen Schlauchbeutel aus der Dosiervorrichtung in jeweils einen Transferbehälter übergeben wird. Anschließend werden die Transferbehälter dann entlang einer Transferstrecke zu zwei Abgabestation transportiert. In den Abgabestationen werden dann die Transferbehälter entleert und das Füllgut aus den Transferbehältern in die beiden Befüllvorrichtung der Schlauchbeutelmaschine übergeben. Anschließend gelangt der Transferbehälter dann entlang einer Rücktransferstrecke zurück zur Eingabestation und kann dort erneut aus der Dosiervorrichtung befüllt werden.The generic double-tube flow-wrapping machine is based on the basic idea that a transfer device with several transfer containers is provided between the two filling devices of the double-tube flow-wrapping machine and the dosing device. In other words, this means that the dosing of the necessary filling quantity of the filling material no longer takes place directly by dispensing the filling material from the dosing device into the two filling devices of the flow-wrapping machine. Instead, the transfer device comprises an input station in which the predetermined filling quantities for each filling of the individual flow-wrapping bags are transferred from the dosing device into a transfer container. The transfer containers are then transported along a transfer route to two discharge stations. In the discharge stations, the transfer containers are then emptied and the filling material from the transfer containers is transferred to the two filling devices of the flow-wrapping machine. The transfer container then travels back along a return transfer route to the input station and can be filled again from the dosing device there.

Im Ergebnis wird also durch die Transfereinrichtung der Dosierprozess von dem Schlauchbeutelfüllprozess entkoppelt, sodass die Dosiervorrichtung und die Schlauchbeutelmaschine nicht mehr zwingend im Synchronbetrieb betrieben werden müssen. Durch diese Entkopplung ist es insbesondere möglich, dass Störungen in einem der beiden Prozesse nicht unmittelbar eine Störung des anderen Prozesses verursachen. Außerdem wird es durch die Transfereinrichtung möglich die Dosiervorrichtung auch örtlich von der Anordnung an der Schlauchbeutelmaschine unabhängig zu machen, so dass eine Anordnung der Dosiervorrichtung oberhalb der Befüllvorrichtung der Schlauchbeutelmaschine nicht zwingend erforderlich ist.As a result, the transfer device decouples the dosing process from the tubular bag filling process, so that the dosing device and the tubular bag machine no longer have to be operated in synchronous operation. This decoupling makes it particularly It is possible that disturbances in one of the two processes do not immediately cause a disturbance in the other process. In addition, the transfer device makes it possible to make the dosing device independent of the location of the tubular bag machine, so that it is not absolutely necessary to arrange the dosing device above the filling device of the tubular bag machine.

Durch den Einsatz gattungsgemäßer Konfigurationen kann außerdem die Produktfallhöhe reduziert und die Leistung des Prozesses erhöht werden. Auch wird der Produktschutz für bruchempfindliche Produkte erhöht. Es können Transferbehälter mit nicht konstantem Durchmesser eingesetzt werden, um dadurch die Entleerungsgeschwindigkeit zu erhöhen. Durch die Entkopplung von Dosier- und Beutelbefüllprozeß kann die Geschwindigkeit des Befüllprozesses durch optimierte Geschwindigkeitsregelungen und verbesserte Öffnungsverfahren erhöht werden.By using generic configurations, the product drop height can also be reduced and the performance of the process increased. Product protection for fragile products is also increased. Transfer containers with a non-constant diameter can be used to increase the emptying speed. By decoupling the dosing and bag filling processes, the speed of the filling process can be increased through optimized speed controls and improved opening procedures.

Erfindungsgemäß ist es vorgesehen, dass der Abstand zwischen den beiden Abgabestationen veränderbar ist, Auf diese Weise kann die Geometrie der Abgabestationen auf die veränderbare Geometrie der Doppelrohr-Schlauchbeutelmaschine angepasst werden. Insbesondere bei Änderungen des Abstandes zwischen den Befüllvorrichtungen kann dies durch Änderung des Abstands zwischen den beiden Abgabestationen ausgeglichen werden. Welche Art von Schlauchbeutelmaschine mit der Transfereinrichtung kombiniert wird, ist grundsätzlich beliebig. Besonders große Vorteile bietet die Anordnung der Transfereinrichtung zwischen der Dosiervorrichtung und der Schlauchbeutelmaschine in denen Fällen, in denen eine vertikale Doppelrohr-Schlauchbeutelmaschine zum Einsatz kommt.According to the invention, it is provided that the distance between the two delivery stations is variable. In this way, the geometry of the delivery stations can be adapted to the variable geometry of the double-tube flow-wrapping machine. In particular, if the distance between the filling devices changes, this can be compensated for by changing the distance between the two delivery stations. The type of flow-wrapping machine combined with the transfer device is basically arbitrary. The arrangement of the transfer device between the dosing device and the flow-wrapping machine offers particularly great advantages in cases in which a vertical double-tube flow-wrapping machine is used.

Die konstruktive Ausbildung der Befülleinrichtung ist wiederum grundsätzlich beliebig. Gemäß einer bevorzugten Ausführungsvariante ist die Befülleinrichtung in der Art eines Formatrohrs ausgebildet, wobei der Folienschlauch an der Außenseite des Formatrohrs geführt wird. Durch den Innenquerschnitt des Formatrohrs kann das Füllgut dann unter Schwerkrafteinfluss von oben in den noch offenen Schlauchbeutel eingefüllt werden.The design of the filling device is basically arbitrary. According to a preferred embodiment, the filling device is designed in the form of a format tube, with the film tube being guided on the outside of the format tube. The filling material can then be filled into the still open tubular bag from above under the influence of gravity through the inner cross-section of the format tube.

Für die jeweils zu verwendende Dosiervorrichtung gibt es unterschiedliche Varianten. Grundsätzlich sind alle gravimetrischen oder volumenmetrischen Dosiereinrichtung oder mit einem Zählverfahren arbeitenden Dosiereinrichtung einsetzbar. Abhängig davon, in welcher Weise die Dosierung erfolgt, kann als Dosiervorrichtung entweder eine Waage oder eine Förderschnecke oder ein Zählwerk oder eine Volumendosiereinrichtung zum Einsatz kommen.There are different variants for the dosing device to be used. Basically, all gravimetric or volumetric dosing devices or dosing devices that work with a counting method can be used. Depending on how the dosing is carried out, either a scale or a conveyor screw or a counter or a volume dosing device can be used as the dosing device.

Im Hinblick auf die Entkopplung des Dosierprozesses von dem Schlauchbeutelbefüllprozess ist es besonders vorteilhaft, wenn die Transfereinrichtung von einer eigenen Transfersteuerung gesteuert wird. Diese Transfersteuerung kann den Übergabeprozess in der Eingabestation unabhängig vom Übergabeprozess in der Abgabestation steuern, so dass eine echte Entkopplung zwischen den beiden Prozessen gewährleistet ist.With regard to decoupling the dosing process from the tubular bag filling process, it is particularly advantageous if the transfer device is controlled by its own transfer control. This transfer control can control the transfer process in the input station independently of the transfer process in the output station, thus ensuring true decoupling between the two processes.

Im Hinblick auf die Ausregelung kleinerer Prozessstörungen ist es besonders vorteilhaft, wenn die Transfersteuerung die Fördergeschwindigkeit der Transferbehälter entlang der Transferstrecke und/oder entlang der Rücktransferstrecke verändern kann. Durch solche Geschwindigkeitsvariationen können insbesondere kleinere Verzögerungen im Bereich der Dosierung problemlos ausgeglichen werden, um die rechtzeitige Abgabe der vordosierten Menge des Füllguts in der Abgabestation auch bei Auftreten kleinerer Prozessstörungen zu gewährleisten.With regard to the compensation of minor process disturbances, it is particularly advantageous if the transfer control can change the conveying speed of the transfer containers along the transfer line and/or along the return transfer line. Such speed variations can easily compensate for minor delays in the dosing area in particular in order to ensure that the pre-dosed amount of the filling material is delivered to the delivery station on time, even if minor process disturbances occur.

Besonders vorteilhaft ist es, wenn die Transfersteuerung die Fördergeschwindigkeit einzelner Transferbehälterunabhängig von der Fördergeschwindigkeit der anderen Transferbehälter verändern kann.It is particularly advantageous if the transfer control can change the conveying speed of individual transfer containers independently of the conveying speed of the other transfer containers.

Um auch größere Prozessstörungen und damit verbundene Prozessabweichungen zwischen dem Dosierprozess und dem Schlauchbeutelbefüllprozess ausgleichen zu können, kann die Transfereinrichtung mit zumindest einem Puffer ausgestattet werden. In diesem Puffer kann zumindest ein gefüllter oder ungefüllter Transferbehälter zwischengespeichert werden. Kommt es dann zu einer kleineren Prozessstörung, die beispielsweise die rechtzeitige Befüllung eines Transferbehälters verhindert, so kann der im Puffer zwischengespeicherte Transferbehälter entnommen und in die Transferstrecke bzw. die Rücktransferstrecke eingeführt werden. Insbesondere kann es vorteilhaft sein, vor jeder Abgabestation einen Puffer vorzusehen.In order to avoid major process disturbances and associated process deviations between the dosing process and the tubular bag filling process In order to be able to compensate for this, the transfer device can be equipped with at least one buffer. At least one filled or unfilled transfer container can be temporarily stored in this buffer. If a minor process disruption occurs, which for example prevents a transfer container from being filled on time, the transfer container temporarily stored in the buffer can be removed and introduced into the transfer line or the return transfer line. In particular, it can be advantageous to provide a buffer in front of each delivery station.

In der Grundform wird eine Dosiervorrichtung mittels der Transfereinrichtung mit einer Doppelrohr-Schlauchbeutelmaschine verbunden. Gemäß einer bevorzugten Variante ist es jedoch vorgesehen, dass die Transfereinrichtung zumindest zwei Eingabestationen umfasst, an denen jeweils Füllgut aus einer Dosiervorrichtung an die Transferbehälter übergeben werden kann. Auf diese Weise ist es insbesondere möglich, dass die notwendige Dosierleistung auf mehrere Dosiervorrichtungen verteilt wird, so dass beispielsweise eine Hochleistungs- Doppelrohr-Schlauchbeutelmaschine aus zwei oder mehr Dosiervorrichtungen mit den vordosierten Füllmengen versorgt werden kann. Die einzelnen Dosiervorrichtungen können dann jeweils eine entsprechend geringere Dosierleistung aufweisen, so dass insbesondere für die Dosierung an Hochleistungs- Doppelrohr-Schlauchbeutelmaschine keine Hochleistungs-Dosiereinrichtungen eingesetzt werden müssen.In the basic form, a dosing device is connected to a double-tube tubular bag machine by means of the transfer device. According to a preferred variant, however, it is provided that the transfer device comprises at least two input stations, at each of which filling material can be transferred from a dosing device to the transfer containers. In this way, it is particularly possible for the necessary dosing capacity to be distributed over several dosing devices, so that, for example, a high-performance double-tube tubular bag machine can be supplied with the pre-dosed filling quantities from two or more dosing devices. The individual dosing devices can then each have a correspondingly lower dosing capacity, so that no high-performance dosing devices have to be used, in particular for dosing on high-performance double-tube tubular bag machines.

Die Dosierung des Füllguts mittels mehrerer Dosiervorrichtungen und deren Übergabe an zumindest zwei verschiedenen Eingabestationen in die Transferbehälter ist insbesondere auch dann von großem Vorteil, wenn die Schlauchbeutel mit einer Mischbefüllung, beispielsweise einer Nussmischung befüllt werden sollen. Um diese Mischbefüllung zu bilden, können an den verschiedenen Eingabestationen unterschiedliche Füllgüter in die Transferbehälter gefüllt werden, wodurch die einzelnen Transferbehälter dann bei Erreichen der Abgabestation die entsprechend gewünschte Mischung des Füllguts enthalten. Durch die Einzeldosierung der die Mischung ergebenden Teilkomponenten wird außerdem die Dosiergenauigkeit der Anteile der Teilkomponenten in der Mischung erhöht.The dosing of the filling material using several dosing devices and their transfer to at least two different input stations in the transfer containers is particularly advantageous when the tubular bags are to be filled with a mixed filling, for example a nut mixture. In order to create this mixed filling, different filling materials can be filled into the transfer containers at the various input stations, whereby the individual transfer containers then have the corresponding desired mixture of the filling material. The individual dosing of the subcomponents that make up the mixture also increases the dosing accuracy of the proportions of the subcomponents in the mixture.

Alternativ bzw. additiv zum Einsatz mehrerer Eingabestationen kann die Transfereinrichtung auch mehr als eine Paarung aus zwei Abgabestationen umfassen. An jeder Paarung von jeweils zwei Abgabestationen kann dann das Füllgut bzw. das Mischgut aus den Transferbehältern an die Befüllvorrichtungen unterschiedlicher Doppelrohr-Schlauchbeutelmaschine übergeben werden. Durch entsprechende Transfereinrichtungen können auf diese Weise auch komplexe Transfersysteme gebildet werden, in denen eine Vielzahl möglicherweise auch unterschiedliche Dosiervorrichtungen mit einer Vielzahl unterschiedlicher Schlauchbeutelmaschinen verknüpft werden, so dass ein optimierter Kapazitätsabgleich zwischen den Dosierkapazitäten und den Abfüllkapazitäten ermöglicht wird.As an alternative or in addition to the use of several input stations, the transfer device can also comprise more than one pair of two delivery stations. At each pair of two delivery stations, the filling material or the mixed material can then be transferred from the transfer containers to the filling devices of different double-tube flow-wrapping machines. Using appropriate transfer devices, complex transfer systems can also be formed in this way, in which a large number of possibly different dosing devices are linked to a large number of different flow-wrapping machines, so that an optimized capacity balance between the dosing capacities and the filling capacities is possible.

Verschiedene Ausführungsformen der Erfindung sind in den Zeichnungen schematisiert dargestellt und werden nachfolgend beispielhaft erläutert.Various embodiments of the invention are shown schematically in the drawings and are explained below by way of example.

Es zeigen:

Fig. 1
eine Doppelrohr-Schlauchbeutelmaschine mit vorgeordneter Dosiervorrichtung und zwischengeschalteter Transfereinrichtung in seitlicher Ansicht;
Fig. 2
die Transfereinrichtung gemäß Fig. 1 in Ansicht von oben;
Fig. 3
eine zweite Ausführungsform einer Transfereinrichtung in Ansicht von oben;
Fig. 4
eine dritte Ausführungsform einer Transfereinrichtung in Ansicht von oben.
Show it:
Fig.1
a double-tube form-fill-seal machine with upstream dosing device and intermediate transfer device in side view;
Fig.2
the transfer facility according to Fig.1 in view from above;
Fig.3
a second embodiment of a transfer device in a view from above;
Fig.4
a third embodiment of a transfer device in top view.

Fig. 1 zeigt eine Doppelrohr-Schlauchbeutelmaschine 01 zur Herstellung von Schlauchbeuteln 02. Bei der Herstellung der Schlauchbeutel 02 wird zunächst jeweils eine Verpackungsfolie 03 um zwei Befüllvorrichtungen 04 , die in der Art von Formatrohren ausgebildet sind, zu jeweils einem Schlauch geformt und längsgesiegelt. Die dadurch gebildeten Folienschläuche 05 werden mittels Quersiegelbacken 06 quergesiegelt und dadurch am oberen bzw. unteren Ende verschlossen. Die am oberen Ende noch unverschlossenen Schlauchbeutel 02 in den beiden Schlauchbeutelsträngen werden während des Befüllprozesses in der Doppelrohr-Schlauchbeutelmaschine 01 mit einem Füllgut durch die Befüllvorrichtungen 04 befüllt, wozu das Füllgut durch den Innenquerschnitt der Formatrohre von oben in die noch geöffneten Schlauchbeutel fällt. Fig.1 shows a double-tube tubular bag machine 01 for the production of tubular bags 02. In the production of the tubular bags 02, Firstly, a packaging film 03 is formed into a tube around two filling devices 04, which are designed in the manner of format tubes, and then sealed lengthwise. The film tubes 05 thus formed are sealed crosswise using cross-sealing jaws 06 and thereby closed at the upper and lower ends. The tubular bags 02 in the two tubular bag strands, which are still unsealed at the upper end, are filled with a filling material by the filling devices 04 during the filling process in the double-tube tubular bag machine 01, whereby the filling material falls from above through the inner cross section of the format tubes into the still open tubular bags.

Der Doppelrohr-Schlauchbeutelmaschine 01 vorgeordnet ist eine Dosiervorrichtung 07, die in der dargestellten Ausführungsform in der Art einer Dosierschnecke 08 mit entsprechendem Antrieb ausgebildet ist. Durch geeigneten Antrieb der Dosierschnecke 08 kann ein vorgegebenes Füllvolumen des Füllguts aus einem Füllguttrichter 09 herausdosiert werden.A dosing device 07 is arranged upstream of the double-tube tubular bag machine 01, which in the embodiment shown is designed in the form of a dosing screw 08 with a corresponding drive. By suitably driving the dosing screw 08, a predetermined filling volume of the filling material can be dosed out of a filling material hopper 09.

Zwischen der Doppelrohr-Schlauchbeutelmaschine 01 und der Dosiervorrichtung 07 ist eine Transfereinrichtung 10 angeordnet. Die Transfereinrichtung 10 umfasst eine Eingabestation 11 und zwei Abgabestationen 12. In der Eingabestation 11 können Transferbehälter 13 aus der Dosiervorrichtung 07 mit der vordosierten Menge des Füllguts befüllt werden. Anschließend werden die Transferbehälter 13 entlang einer Transferstrecke 14 zu den beiden Abgabestationen 12 transportiert. In der Abgabestation 12 erfolgt ein Entleeren der Transferbehälter 13, so dass die vordosierte Menge des Füllguts durch die Befüllvorrichtungen 04 von oben in die geöffneten Schlauchbeutel fällt. Die Befüllung der Transferbehälter 13 in der Eingabestation 11 erfolgt dabei unabhängig von der Entleerung der Transferbehälter 13 in den Abgabestationen 12, so dass eine Synchronität zwischen dem Dosierprozess in der Dosiervorrichtung 07 und dem Schlauchbeutelbefüllprozess in der Schlauchbeutelmaschine 01 nicht mehr erforderlich ist. Durch Variation der Fördergeschwindigkeit der Transferbehälter 13 entlang der Transferstrecke 14 können Synchronitätsabweichungen zwischen den beiden Prozessen problemlos ausgeglichen werden.A transfer device 10 is arranged between the double-tube tubular bag machine 01 and the dosing device 07. The transfer device 10 comprises an input station 11 and two delivery stations 12. In the input station 11, transfer containers 13 from the dosing device 07 can be filled with the pre-dosed amount of the filling material. The transfer containers 13 are then transported along a transfer path 14 to the two delivery stations 12. In the delivery station 12, the transfer containers 13 are emptied so that the pre-dosed amount of the filling material falls from above into the opened tubular bags through the filling devices 04. The transfer containers 13 are filled in the input station 11 independently of the emptying of the transfer containers 13 in the delivery stations 12, so that synchronization between the dosing process in the dosing device 07 and the tubular bag filling process in the tubular bag machine 01 is no longer necessary. By varying the conveying speed of the transfer containers 13 along the transfer path 14, Synchronicity deviations between the two processes can be easily compensated.

Fig. 2 zeigt die Transfereinrichtung 10 mit der Eingabestation 11 und den beiden Abgabestation 12 in schematisierter Ansicht von oben. Wie aus Fig. 2 ersichtlich, werden die Transferbehälter 13 nach der Entleerung in den Abgabestationen 12 entlang einer Rücktransferstrecke 15 zurück zur Eingabestation 11 transportiert, so dass sie dort erneut mit einer vordosierten Menge des Füllguts befüllt werden können. Um auch größere Synchronitätsverschiebungen zwischen der Befüllung der Transferbehälter in der Eingabestation 11 und der Entleerung der Transferbehälter 13 in den beiden Abgabestationen 12 ausgleichen zu können, enthält die Transferstrecke 14 außerdem einen Puffer 16, in dem mehrere Transferbehälter 13 zwischengespeichert werden können. Zur Befüllung bzw. zur Entnahme der Transferbehälter 13 im Puffer 16 dienen Weichenelemente 17. Fig.2 shows the transfer device 10 with the input station 11 and the two output stations 12 in a schematic view from above. As can be seen from Fig.2 As can be seen, the transfer containers 13 are transported along a return transfer path 15 back to the input station 11 after being emptied in the delivery stations 12, so that they can be filled again there with a pre-dosed amount of the filling material. In order to be able to compensate for larger synchronization shifts between the filling of the transfer containers in the input station 11 and the emptying of the transfer containers 13 in the two delivery stations 12, the transfer path 14 also contains a buffer 16 in which several transfer containers 13 can be temporarily stored. Switch elements 17 are used to fill or remove the transfer containers 13 in the buffer 16.

Fig. 3 zeigt eine alternative Ausführungsform 18 einer Transfereinrichtung. Der grundsätzliche Aufbau der Transfereinrichtung 18 entspricht dem Aufbau der Transfereinrichtung 10, wobei die Transfereinrichtung 18 eine zusätzliche Eingabestation 19 umfasst. An der zusätzlichen Eingabestation 19 können die Transferbehälter 13 unter Verwendung einer weiteren Dosiervorrichtung 07 wiederum mit vordosierten Füllmengen eines Füllguts befüllt werden. Dabei ist es denkbar, dass in den Eingabestationen 11 und 19 jeweils unterschiedliche Transferbehälter mit Füllgut befüllt werden, um auf diese Weise die erforderliche Dosierkapazität durch Verwendung zweier Dosiervorrichtungen zu erhöhen. Alternativ dazu können die Transferbehälter 13 in den Eingabestationen 11 und 19 auch jeweils mit unterschiedlichen Füllgütern befüllt werden, so dass jeder Transferbehälter nach Verlassen der Eingabestation 19 eine vordosierte Mischung von Füllgütern enthält. Fig.3 shows an alternative embodiment 18 of a transfer device. The basic structure of the transfer device 18 corresponds to the structure of the transfer device 10, wherein the transfer device 18 comprises an additional input station 19. At the additional input station 19, the transfer containers 13 can in turn be filled with pre-dosed quantities of a filling material using a further dosing device 07. It is conceivable that different transfer containers are filled with filling material in the input stations 11 and 19 in order to increase the required dosing capacity by using two dosing devices. Alternatively, the transfer containers 13 in the input stations 11 and 19 can also be filled with different filling materials so that each transfer container contains a pre-dosed mixture of filling materials after leaving the input station 19.

Fig. 4 zeigt eine dritte Ausführungsform 20 einer Transfereinrichtung. Die Transfereinrichtung 20 unterscheidet sich von der Transfereinrichtung 18 durch den zusätzlichen Einsatz einer weiteren Paarung von zwei Abgabestation 21. Im Ergebnis können also mittels der Transfereinrichtung 20 die Transferbehälter 13 zum einen in den Eingabestationen 11 und 19 unter Verwendung unterschiedlicher Dosiervorrichtungen mit Füllgut befüllt werden und die Füllgüter aus den Transferbehältern 13 dann an den beiden Paarungen von jeweils zwei Abgabestationen 12 und 21 an zwei verschiedene Doppelrohr-Schlauchbeutelmaschine 01 abgegeben werden. Soweit die Transfereinrichtungen weitere Eingabestationen bzw. Abgabestationen umfassen, können komplexe Transfersysteme, gebildet aus einer Vielzahl von Dosiervorrichtungen und einer Vielzahl von Schlauchbeutelmaschinen, realisiert werden. Fig.4 shows a third embodiment 20 of a transfer device. The transfer device 20 differs from the transfer device 18 by the additional use of a further pairing of two delivery stations 21. As a result, the transfer device 20 can be used to fill the transfer containers 13 with filling material in the input stations 11 and 19 using different dosing devices, and the filling materials from the transfer containers 13 can then be delivered to two different double-tube tubular bag machines 01 at the two pairings of two delivery stations 12 and 21 each. If the transfer devices include further input stations or delivery stations, complex transfer systems can be implemented, consisting of a large number of dosing devices and a large number of tubular bag machines.

Claims (11)

  1. A twin-tube tubular bag machine (01) having two longitudinal sealing elements for forming two parallel film tubes (05), two transverse sealing jaws (06), which are moveable against each other and which thereby transversely seal the film tube (05), being provided for each of the two film tubes (05) for forming sealed tubular bags (02), having a mechanism which has a drive and which moves the transverse sealing jaws (06), and having two filling devices (04) for filling the tubular bags (02) formed by the two film tubes (05) with filling material, and having two separating elements for separating individual filled tubular bags (02) formed by the two film tubes (05), a dosing device (07) being disposed upstream of each of the filling devices (04), said dosing device allowing for the dosing of a prespecified filling quantity of the filling material to be filled into the tubular bags (02), a transfer element (10, 18, 20) which has several transfer containers (13) being provided between the two filling devices (04) and the dosing device (07), the prespecified filling quantity of the filling material being transferred from the dosing device (07) to the transfer containers (13) in an input station (11, 19), and the transfer containers (13) being transported to a pairing of two dispensing stations (12, 21) along a transfer line (14), and the filling material being transferred from the transfer containers (13) to the two filling devices (04) in the pairing of two dispensing stations (12, 21), and the transfer containers (13) being transported back to the input station (11, 19) along a return transfer line (15),
    characterized in that
    in a pairing of two dispensing stations (12, 21), the distance between the two dispensing stations (12, 21) is adaptable.
  2. The twin-tube tubular bag machine according to claim 1,
    characterized in that
    the twin-tube tubular bag machine (01) is a vertical twin-tube tubular bag machine.
  3. The twin-tube tubular bag machine according to any one of claims 1 or 2,
    characterized in that
    the filling devices (04) are each realized in the manner of a forming tube, the film tubes (05) being guided on the outer surface of the forming tubes (05).
  4. The twin-tube tubular bag machine according to any one of claims 1 to 3,
    characterized in that
    the dosing device (07) comprises at least a weighing scale or at least a screw conveyor or at least a meter or at least a volume dosing device for measuring the filling material.
  5. The twin-tube tubular bag machine according to any one of claims 1 to 4,
    characterized in that
    the transfer element (10, 18, 20) is controlled by a transfer control system, the transfer control system controlling the transfer process in the input station (11, 19) irrespective of the transfer process in the dispensing stations (12, 21).
  6. The twin-tube tubular bag machine according to claim 5,
    characterized in that
    the transfer control system changes the conveying speed of the transfer containers along the transfer line (14) and/or along the return transfer line (15).
  7. The twin-tube tubular bag machine according to claim 6,
    characterized in that
    the transfer control system changes the conveying speed of individual transfer containers (13) irrespective of the conveying speed of the other transfer containers (13).
  8. The twin-tube tubular bag machine according to any one of claims 1 to 7,
    characterized in that
    the transfer element (10, 18, 20) comprises at least one buffer (16), which temporarily stores at least one filled or unfilled transfer container (13).
  9. The twin-tube tubular bag machine according to any one of claims 1 to 8,
    characterized in that
    the transfer element (10, 18, 20) comprises at least two input stations (11, 19), at each of which filling material from a dosing device (07) is transferable to the transfer containers (13).
  10. The twin-tube tubular bag machine according to claim 9,
    characterized in that
    for forming a mixed filling, different filling materials are transferable to a transfer container (13) at the different input stations (11, 19).
  11. The twin-tube tubular bag machine according to any one of claims 1 to 10,
    characterized in that
    the transfer element (10, 18, 20) comprises at least two pairings of two dispensing stations (12, 21) each, at which filling material from the transfer containers (13) is transferable to the two filling devices (04) of different twin-tube tubular bag machines (01).
EP20706389.2A 2019-02-08 2020-02-05 Twin-tube bag forming, filling and sealing machine comprising metering device and transfer system Active EP3921239B1 (en)

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PCT/EP2020/052802 WO2020161157A1 (en) 2019-02-08 2020-02-05 Twin-tube bag forming, filling and sealing machine comprising metering device and transfer system

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DE102019103184B3 (en) 2020-08-06
US20220106069A1 (en) 2022-04-07
EP3921239A1 (en) 2021-12-15
US11801961B2 (en) 2023-10-31

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