EP3431400B1 - Method and device for handling bag webs - Google Patents
Method and device for handling bag webs Download PDFInfo
- Publication number
- EP3431400B1 EP3431400B1 EP18000583.7A EP18000583A EP3431400B1 EP 3431400 B1 EP3431400 B1 EP 3431400B1 EP 18000583 A EP18000583 A EP 18000583A EP 3431400 B1 EP3431400 B1 EP 3431400B1
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- EP
- European Patent Office
- Prior art keywords
- bag chain
- bags
- bag
- folded
- layers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 title claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
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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
- B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
- B65B63/04—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for folding or winding articles, e.g. gloves or stockings
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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
- B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
- B65B35/30—Arranging and feeding articles in groups
- B65B35/40—Arranging and feeding articles in groups by reciprocating or oscillatory pushers
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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
- B65B35/00—Supplying, feeding, arranging or orientating articles to be packaged
- B65B35/30—Arranging and feeding articles in groups
- B65B35/50—Stacking one article, or group of articles, upon another before packaging
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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
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
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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
- B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
- B65B5/06—Packaging groups of articles, the groups being treated as single articles
- B65B5/061—Filled bags
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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
- B65B5/00—Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
- B65B5/08—Packaging groups of articles, the articles being individually gripped or guided for transfer to the containers or receptacles
Definitions
- the invention relates to a method for handling a bag chain according to the preamble of claim 1.
- the invention further relates to a corresponding device for handling a bag chain according to the preamble of claim 8.
- a bag chain is a multitude of bags that are connected to each other to form a chain.
- the bags can be formed from a film material and filled with a package content or empty.
- the bags in the bag chain usually have two large-format side walls that are connected to each other by side seams. Adjacent bags within the bag chain are connected in a connection area, this connection area is usually located between the mutually facing side seams of adjacent bags in the bag chain.
- the bags can be separated from the bag chain by separation in the connection area. Either a separating cut is made in the connection area for this purpose or a perforation line is provided in the connection area which can be separated in order to separate the bags.
- Such bag chains are usually packed in boxes after production.
- Such a device is, for example, from DE 28 08 513 A known.
- the bag chain is swiveled Guide walls 10 performed, which perform a pendulum movement, whereby the bag chain is folded into the so-called zigzag layers after the guide walls.
- a disadvantage of this solution is that the performance of the device is limited by the pendulum movement of the guide walls and the masses to be moved with it.
- the invention is based on the object of further developing methods and devices of the type mentioned at the outset, in particular with a view to greater performance and at the same time as gentle as possible handling of the bags or bag chains.
- a method for solving this problem has the features of claim 1. It is accordingly provided that the bag chain is folded by at least two folding members which reach between the bags of the bag chain to fold the bag chain. It has surprisingly been shown that bag chains can be folded quickly and gently in this way.
- adjacent bags of the bag chain are connected to one another in a connection area, the folding members in the connection area between adjacent bags reaching into the bag chain in order to fold the bag chain there. In this way it is possible in particular to fold the bag chains particularly gently
- the bag chain is folded around the folding members by relative movement between the folding members and the bag chain.
- a movement of the folding members towards the bag chain as well as the other way round or a superimposed movement is conceivable.
- the bag chain is folded in zigzag layers, the bag chain being folded by the folding elements in such a way that the bag chain is first in one direction by a first folding element and then in another by a second folding element the first direction is folded to form the zigzag layers.
- the folding members are at least partially formed by arms of one or more rotationally driven star wheels, the arms reaching between adjacent bags and thereby folding the bag chain.
- At least two star wheels are arranged on different, opposite sides of the bag chain, the arms of the folding members arranged on different, opposite sides of the bag chain alternately reaching into the bag chain to zigzag the bag chain -Zag layers to fold.
- a further special feature can be that the bags of the bag chain folded in layers coming from the folding organs are fed to a discharge conveyor, with which the folded bags of the bag chain are held in their formation during transport and conveyed towards a filling station for containers, provided that is that the bags of the bag chain with upright layers are transported by the conveyor and it is further provided that the layers are transported inclined relative to an imaginary vertical plane on the conveyor, in particular inclined in the transport direction.
- the bags of the bag chain arranged in layers are pushed into a container by a slide, the bags of the bag chain arranged in layers coming from the conveyor being transported to a pivotable platform which is used to accept the bags the bag chain is arranged inclined and for the removal of the Bag of the bag chain is pivoted into a horizontal arrangement, parallel to the walls of the container arranged adjacent to the platform.
- a device for solving the above-mentioned object has the features of claim 8. It is accordingly provided that the device has at least two folding members which are set up to fold the bag chain by the folding members reaching between the bags of the bag chain.
- the folding members are arranged on different, opposite sides of the bag chain, the folding members being set up so that the bag chain can first be folded in one direction by a first folding member and then in another direction that deviates from the first direction by another, second folding member , to form zigzag layers.
- the folding member (s) are at least partially formed by arms of one or more rotationally driven star wheels, the arms being designed to reach between adjacent bags and thereby fold the bag chain.
- the star wheels can be driven in a continuously rotating manner about parallel axes arranged at such a distance from one another, so that one arm of one star wheel always engages in a free space between two arms of the other star wheel, and the bag chain between passed through the adjacent arms of the opposite star wheels and can be folded by the movement of the arms
- Another special feature can be the construction of a conveyor for the stacked bags. Accordingly, the bags of the chain of bags folded in layers can be fed to the removal conveyor, the conveyor having compartments in each of which a folded bag chain is accommodated and which are set up to hold the folded bags of the bag chain during transport with the conveyor in their Hold formation.
- the discharge conveyor is formed by two (endless) conveyors, each of which has protruding drivers from a conveying strand of the respective conveyors, so that the compartments are limited by the conveying dreams of the conveyors facing one another and the respective carriers are, and wherein the drivers are arranged inclined to an imaginary vertical plane on the conveying strands, and wherein the bags of the bag chain with one side face against the drivers, so that the layers can be transported in the compartments inclined in the transport direction.
- the device has a pivotable platform for transferring the folded bag chains to a container, the platform for taking over the folded bag chains being inclined and pivotable in a horizontal plane for transferring the folded bag chains, or parallel to walls of the container arranged adjacent to the platform.
- the invention is described below with reference to a packaging machine 10 with which bag chains 11 are packed in containers 12.
- the bag chains 11 are arranged stacked within the container 12.
- the invention is concerned with the formation of these stacks 13 and the subsequent transport thereof into a container 12.
- Fig. 1 shows the essential organs of the device.
- the bag chain 11 to be packed is separated in a cutting station 14, and the bag chain 11 is folded in a subsequent folding station 15.
- the folded bag chains 11 are removed by means of a discharge conveyor 16. Finally, the folded bag chains 11 are introduced into the container 12.
- the bag chains 11 are configured as described at the outset, that is to say as a chain of bags 17 connected to one another. Adjacent bags 17 are connected to one another in a connecting region 18.
- the bag chains 11 are shortened to a predetermined length.
- a separating knife 19 is used which works together with a counter knife 20, which is arranged on a different side of the bag chain 11 than the separating knife 19.
- the bag chain 11 conveyed in the direction of the folding station 15 is transported past the separating knife 19 and counter knife 20, the position of the connecting areas 18 being detected by a sensor 21 and the bag chain 11 at a certain length by moving the separating knife 19 and counter knife 20 in the connecting area 18 is separated.
- conveyors 22 serve to transport the bag chain 11 in the direction of the folding station 15.
- the bags 17 or the bag chains 11 are arranged in layers 23 within the stack 13 to be formed. In the present case, two bags 17 are arranged in each layer 23. However, the number of bags 17 per layer 23 can vary. It is conceivable that only one bag 17 is provided per layer 23. Several bags 17 per layer 23 are also conceivable.
- the bag chain 11 is arranged in a zigzag-like manner. Accordingly, the bag chain 11 has to be folded alternately in two directions.
- two star wheels 24, 25 are provided in the exemplary embodiment shown, with the arms 26 of which the bag chain 11 is alternately folded in one and the other direction.
- the two star wheels 24, 25 are each arranged to rotate about a horizontal axis 27.
- the direction of rotation of the two star wheels 24, 25 is in opposite directions.
- Both star wheels 24, 25 have the same number of arms 26.
- the arms 26 are each arranged radially with respect to the axis 27. Clearances 28 are formed between adjacent arms 26 of a star wheel 24, 25.
- the two star wheels 24, 25 or their axes 27 are arranged at a vertical distance from one another, however, in such a way that the arms 26 of one star wheel 24, 25 each protrude into the free spaces 28 between the arms 26 of the other star wheel 25, 24.
- the angular position of the arms 26 is preferably offset from one another by 90 °. In this way, the zigzag folding of the bag chain 11 can take place.
- the supplied bag chain 11 is lifted off the conveyor 22 with a first arm 26 of the lower star wheel 25.
- the two bags 17 of the first layer 23 rest on the arm 26 and a free end of the arm 26 extends into the connection area 18 to the next bag 17 ( Fig. 3 ).
- a free end of an arm 26 of the upper star wheel 24 engages from the other side into a connecting region 18 between adjacent pairs of bags and thus specifies the folding of the bag chain 11 in the other direction ( Fig. 4 ). In this way, the bag chain is folded as folding members by the alternate engagement of arms 26 of the two star wheels 24, 25.
- a vertical arrangement of the axes 27 is also conceivable, so that the star wheels 24, 25 are then arranged to rotate in a horizontal plane.
- the bag chain 11 is then folded in a horizontal plane instead of in a vertical plane as shown in the figures.
- the two star wheels 24, 25 can be coupled with respect to the drive, for example by means of gear wheels. However, it is also conceivable that the star wheels 24, 25 are driven by independent servomotors. In this case, it is also possible to individually adjust the rotational speeds of the two star wheels 24, 25. It is also conceivable to vary the rotational speeds of the star wheels 24, 25 in order to keep the feed of the bag chain 11 as constant as possible, in particular in the inlet area of the discharge conveyor 16. This variation of the rotational speeds can be carried out separately for each star wheel 24, 25 (individually different) or for both star wheels 24, 25 together (both in agreement).
- the folded bag chain 11 arrives in the area of the discharge conveyor 16.
- the bags are placed on guides 38 and pushed into a compartment 29 in the direction of the discharge conveyor 16.
- the compartments 29 of the discharge conveyor 16 are delimited on the upper and lower sides by conveyor strands 30, 31 by endless conveyors 32, 33, and laterally by drivers 34 which protrude from the conveyor strands 30, 31.
- the distance between the endless conveyors 32, 33 arranged one above the other or the length of the drivers 34 is dimensioned such that the lateral boundaries of the compartments 29 are each formed by a driver 34 of the conveyor run 30 and a driver 34 of the conveyor run 31.
- the drivers 34 and thus the side walls of the compartments 29 are arranged inclined in the conveying direction of the discharge conveyor 16.
- the upright layers 23 of the stack 13 are arranged in a correspondingly inclined manner. In this way, the layers 23 can be leaned accordingly and thus have less tendency to fall over.
- the discharge conveyor 16 as a whole in an inclined manner, in which case the drivers 34 can then be arranged perpendicular to the conveyor strands 30, 31 in order to achieve the situation described above.
- a substantially vertical arrangement of the discharge conveyor 16 would also be conceivable, so that the stacks 13 can be transported downwards or upwards as in a shaft.
- the stacks 13 arrive on a platform 35 which is designed to be inclined in the same direction as the driver 34 in relation to an imaginary horizontal plane in order to accept a stack.
- the stack 13 becomes supported downstream by a counter bracket 36 to prevent the layers 23 of the stack 13 from falling apart.
- the counter-holder 36 is moved in the conveying direction with the stack 13 until it has reached the platform 35 ( Fig. 9 ).
- the platform 35 is then pivoted into a horizontal plane or pushed into a position parallel to the walls of the container 12 and the stack 13 is pushed into the container 12 transversely to the transport direction by a slide 37.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
Description
Die Erfindung betrifft ein Verfahren zum Handhaben einer Beutelkette gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a method for handling a bag chain according to the preamble of claim 1.
Ferner betrifft die Erfindung eine entsprechende Vorrichtung zum Handhaben einer Beutelkette gemäß dem Oberbegriff des Anspruchs 8.The invention further relates to a corresponding device for handling a bag chain according to the preamble of claim 8.
Bei einer Beutelkette handelt es sich um eine Vielzahl von Beuteln, die zu einer Kette miteinander verbunden sind. Die Beutel können aus einem Folienmaterial gebildet sein und mit einem Packungsinhalt befüllt oder leer sein. Die Beutel der Beutelkette verfügen in der Regel über zwei großformatige Seitenwände, die durch Seitennähte miteinander verbunden sind. Jeweils benachbarte Beutel innerhalb der Beutelkette sind in einem Verbindungsbereich verbunden, in der Regel befindet sich dieser Verbindungsbereich zwischen den einander zugewandten Seitennähten von jeweils benachbarten Beuteln der Beutelkette. Die Beutel können durch Trennung im Verbindungsbereich aus der Beutelkette vereinzelt werden. Entweder wird hierzu ein Trennschnitt im Verbindungsbereich ausgeführt oder im Verbindungsbereich ist eine Perforationslinie vorgesehen, die aufgetrennt werden kann, um die Beutel zu vereinzeln.A bag chain is a multitude of bags that are connected to each other to form a chain. The bags can be formed from a film material and filled with a package content or empty. The bags in the bag chain usually have two large-format side walls that are connected to each other by side seams. Adjacent bags within the bag chain are connected in a connection area, this connection area is usually located between the mutually facing side seams of adjacent bags in the bag chain. The bags can be separated from the bag chain by separation in the connection area. Either a separating cut is made in the connection area for this purpose or a perforation line is provided in the connection area which can be separated in order to separate the bags.
Üblicherweise werden derartige Beutelketten nach der Herstellung in Kartons verpackt. Um die Beutelketten dort platzsparend anzuordnen, ist es ferner üblich, dass die Beutelketten in Lagen gefaltet werden, wodurch sogenannte Zick-Zack-Lagen entstehen (entsprechend des Verlaufs der Beutelketten im Stapel). Eine derartige Vorrichtung ist beispielsweise aus
In der
Hiervon ausgehend liegt der Erfindung die Aufgabe zu Grunde, Verfahren und Vorrichtungen der eingangs genannten Art weiterzuentwickeln, insbesondere im Hinblick auf eine größere Leistungsfähigkeit bei gleichzeitig möglichst schonender Handhabung der Beutel bzw. Beutelketten.Proceeding from this, the invention is based on the object of further developing methods and devices of the type mentioned at the outset, in particular with a view to greater performance and at the same time as gentle as possible handling of the bags or bag chains.
Ein Verfahren zur Lösung dieser Aufgabe weist die Merkmale des Anspruchs 1 auf. Es ist demnach vorgesehen, dass die Beutelkette durch wenigstens zwei Faltorgane gefaltet wird, die zum Falten der Beutelkette zwischen die Beutel der Beutelkette greifen. Es hat sich überraschend gezeigt, dass man Beutelketten auf diese Weise schnell und schonend falten kann.A method for solving this problem has the features of claim 1. It is accordingly provided that the bag chain is folded by at least two folding members which reach between the bags of the bag chain to fold the bag chain. It has surprisingly been shown that bag chains can be folded quickly and gently in this way.
Unter "greifen" wird im Rahmen dieser Anmeldung nicht ein "ergreifen" im Sinne von "festhalten" verstanden, sondern vielmehr die Relativbewegung zwischen Beutelkette und Faltorganen, die dazu führt, dass die Faltorgane zwischen zwei benachbarten Beuteln positioniert werden und derart mit der Beutelkette in Kontakt kommen, dass eine Faltung der Beutelkette erfolgt.In the context of this application, “grasping” is not understood to mean “grasping” in the sense of “holding on”, but rather the relative movement between the bag chain and folding elements, which leads to the fact that the folding elements are positioned between two adjacent bags and thus with the bag chain in Contact come that the bag chain folds.
Vorzugsweise ist vorgesehen, dass benachbarte Beutel der Beutelkette miteinander in einem Verbindungsbereich verbunden sind, wobei die Faltorgane im Verbindungsbereich zwischen benachbarten Beuteln in die Beutelkette greifen, um die Beutelkette dort zu falten. Auf diese Weise ist es insbesondere möglich, die Beutelketten besonders schonend zu faltenIt is preferably provided that adjacent bags of the bag chain are connected to one another in a connection area, the folding members in the connection area between adjacent bags reaching into the bag chain in order to fold the bag chain there. In this way it is possible in particular to fold the bag chains particularly gently
Vorzugsweise ist vorgesehen, dass die Beutelkette durch Relativbewegung zwischen Faltorganen und Beutelkette um die Faltorgane gefaltet wird. Denkbar ist also sowohl eine Bewegung der Faltorgane auf die Beutelkette zu, als auch anders herum oder eine überlagerte Bewegung.It is preferably provided that the bag chain is folded around the folding members by relative movement between the folding members and the bag chain. A movement of the folding members towards the bag chain as well as the other way round or a superimposed movement is conceivable.
Es ist vorgesehen, dass die Beutelkette in Zick-Zack-Lagen gefaltet wird, wobei die Beutelkette durch die Faltorgane derart gefaltet wird, dass die Beutelkette zunächst durch ein erstes Faltorgan in eine Richtung und danach durch ein anderes, zweites Faltorgan in eine andere, von der ersten Richtung abweichende Richtung gefaltet wird, zur Bildung der Zick-Zack-Lagen.It is provided that the bag chain is folded in zigzag layers, the bag chain being folded by the folding elements in such a way that the bag chain is first in one direction by a first folding element and then in another by a second folding element the first direction is folded to form the zigzag layers.
In einer bevorzugten Ausgestaltung kann vorgesehen sein, dass die Faltorgane wenigstens teilweise durch Arme eines oder mehrerer drehend angetriebener Sternräder gebildet sind, wobei die Arme zwischen benachbarte Beutel greifen und dadurch die Beutelkette falten.In a preferred embodiment it can be provided that the folding members are at least partially formed by arms of one or more rotationally driven star wheels, the arms reaching between adjacent bags and thereby folding the bag chain.
In einer besonders bevorzugten Weiterbildung der Erfindung kann vorgesehen sein, dass wenigstens zwei Sternräder auf unterschiedlichen, gegenüberliegenden Seiten der Beutelkette angeordnet sind, wobei die Arme der auf unterschiedlichen, gegenüberliegenden Seiten der Beutelkette angeordneten Faltorgane abwechselnd nacheinander in die Beutelkette greifen, um die Beutelkette zu Zick-Zack-Lagen zu falten.In a particularly preferred development of the invention it can be provided that at least two star wheels are arranged on different, opposite sides of the bag chain, the arms of the folding members arranged on different, opposite sides of the bag chain alternately reaching into the bag chain to zigzag the bag chain -Zag layers to fold.
Eine weitere Besonderheit kann darin bestehen, dass die in Lagen gefalteten Beutel der Beutelkette von den Faltorganen kommend einem Abförderer zugeführt werden, mit dem die gefalteten Beutel der Beutelkette während des Transports in ihrer Formation gehalten und in Richtung einer Befüllstation für Behälter gefördert werden, wobei vorgesehen ist, dass die Beutel der Beutelkette mit aufrecht stehenden Lagen mit dem Abförderer transportiert werden und wobei weiter vorgesehen ist, dass die Lagen geneigt gegenüber einer gedachten vertikalen Ebene auf dem Abförderer transportiert werden, insbesondere in Transportrichtung geneigt.A further special feature can be that the bags of the bag chain folded in layers coming from the folding organs are fed to a discharge conveyor, with which the folded bags of the bag chain are held in their formation during transport and conveyed towards a filling station for containers, provided that is that the bags of the bag chain with upright layers are transported by the conveyor and it is further provided that the layers are transported inclined relative to an imaginary vertical plane on the conveyor, in particular inclined in the transport direction.
In einer vorteilhaften Ausführungsform der Erfindung kann vorgesehen sein, dass die in Lagen angeordneten Beutel der Beutelkette von einem Schieber in einen Behälter eingeschoben werden, wobei die in Lagen angeordneten Beutel der Beutelkette vom Abförderer kommend auf eine schwenkbare Plattform transportiert werden, die zur Annahme der Beutel der Beutelkette geneigt angeordnet ist und die zum Abtransport der Beutel der Beutelkette in eine horizontale Anordnung geschwenkt wird, parallel zu Wandungen des benachbart zur Plattform angeordneten Behälters.In an advantageous embodiment of the invention it can be provided that the bags of the bag chain arranged in layers are pushed into a container by a slide, the bags of the bag chain arranged in layers coming from the conveyor being transported to a pivotable platform which is used to accept the bags the bag chain is arranged inclined and for the removal of the Bag of the bag chain is pivoted into a horizontal arrangement, parallel to the walls of the container arranged adjacent to the platform.
Eine Vorrichtung zur Lösung der eingangs genannten Aufgabe weist die Merkmale des Anspruchs 8 auf. Es ist demnach vorgesehen, dass die Vorrichtung wenigstens zwei Faltorgane aufweist, die dazu eingerichtet sind, die Beutelkette zu falten, indem die Faltorgane zwischen die Beutel der Beutelkette greifen.A device for solving the above-mentioned object has the features of claim 8. It is accordingly provided that the device has at least two folding members which are set up to fold the bag chain by the folding members reaching between the bags of the bag chain.
Die Faltorgane sind auf unterschiedlichen, gegenüberliegenden Seiten der Beutelkette angeordnet, wobei die Faltorgane dazu eingerichtet sind, dass die Beutelkette zunächst durch ein erstes Faltorgan in eine Richtung und danach durch ein anderes, zweites Faltorgan in eine andere, von der ersten Richtung abweichende Richtung faltbar ist, zur Bildung von Zick-Zack-Lagen.The folding members are arranged on different, opposite sides of the bag chain, the folding members being set up so that the bag chain can first be folded in one direction by a first folding member and then in another direction that deviates from the first direction by another, second folding member , to form zigzag layers.
Vorzugsweise ist vorgesehen, dass die Faltorgan(e) wenigstens teilweise durch Arme eines oder mehrerer drehend angetriebener Sternräder gebildet sind, wobei die Arme zwischen benachbarte Beutel greifend ausgebildet sind und dadurch die Beutelkette falten.It is preferably provided that the folding member (s) are at least partially formed by arms of one or more rotationally driven star wheels, the arms being designed to reach between adjacent bags and thereby fold the bag chain.
In einer bevorzugten Ausführungsform der Erfindung kann vorgesehen sein, dass die Sternräder um parallele und mit einem derartigen Abstand zueinander angeordnete Achsen kontinuierlich drehend antreibbar sind, sodass ein Arm eines Sternrads jeweils in einen Freiraum zwischen zwei Arme des anderen Sternrads greift, und wobei die Beutelkette zwischen den benachbarten Armen der gegenüberliegenden Sternräder hindurchgeführt und dabei durch die Bewegung der Arme faltbar istIn a preferred embodiment of the invention, it can be provided that the star wheels can be driven in a continuously rotating manner about parallel axes arranged at such a distance from one another, so that one arm of one star wheel always engages in a free space between two arms of the other star wheel, and the bag chain between passed through the adjacent arms of the opposite star wheels and can be folded by the movement of the arms
Eine weitere Besonderheit kann hinsichtlich der Konstruktion eines Abförderers für die gestapelten Beutel bestehen. Demnach sind dem Abförderer die in Lagen gefalteten Beutel der Beutelkette von den Faltorganen kommend zuführbar, wobei der Abförderer Fächer aufweist, in denen jeweils eine gefaltete Beutelkette Aufnahme findet und die dazu eingerichtet sind, die gefalteten Beutel der Beutelkette während des Transports mit dem Abförderer in ihrer Formation zu halten.Another special feature can be the construction of a conveyor for the stacked bags. Accordingly, the bags of the chain of bags folded in layers can be fed to the removal conveyor, the conveyor having compartments in each of which a folded bag chain is accommodated and which are set up to hold the folded bags of the bag chain during transport with the conveyor in their Hold formation.
In einer bevorzugten Ausführungsform der Erfindung kann vorgesehen sein, dass der Abförderer durch zwei (Endlos-)Förderer gebildet ist, die jeweils gegenüber einem Fördertrum der jeweiligen Förderer abstehende Mitnehmer aufweisen, sodass die Fächer durch die einander zugewandten Fördertrume der Förderer und die jeweiligen Mitnehmer begrenzt werden, und wobei die Mitnehmer geneigt gegenüber einer gedachten vertikalen Ebene an den Fördertrumen angeordnet sind, und wobei die Beutel der Beutelkette mit einer Seitenfläche an den Mitnehmern anliegen, sodass die Lagen entsprechend in Transportrichtung geneigt in den Fächern stehend transportierbar sind.In a preferred embodiment of the invention it can be provided that the discharge conveyor is formed by two (endless) conveyors, each of which has protruding drivers from a conveying strand of the respective conveyors, so that the compartments are limited by the conveying dreams of the conveyors facing one another and the respective carriers are, and wherein the drivers are arranged inclined to an imaginary vertical plane on the conveying strands, and wherein the bags of the bag chain with one side face against the drivers, so that the layers can be transported in the compartments inclined in the transport direction.
Ferner kann vorgesehen sein, dass die Vorrichtung eine schwenkbare Plattform zur Übergabe der gefalteten Beutelketten an einen Behälter aufweist, wobei die Plattform zur Übernahme der gefalteten Beutelketten geneigt angeordnet ist und zur Übergabe der gefalteten Beutelketten in eine horizontale Ebene schwenkbar ist, bzw. parallel zu Wandungen des benachbart zur Plattform angeordneten Behälters.Furthermore, it can be provided that the device has a pivotable platform for transferring the folded bag chains to a container, the platform for taking over the folded bag chains being inclined and pivotable in a horizontal plane for transferring the folded bag chains, or parallel to walls of the container arranged adjacent to the platform.
Eine bevorzugte Ausgestaltung der Erfindung wird nachfolgend anhand der Zeichnung beschrieben. In dieser zeigen:
- Fig. 1
- eine räumliche, schematische Darstellung einer Vorrichtung zum Handhaben von Beutelketten,
- Fig. 2
- eine Seitenansicht der Vorrichtung entsprechend Pfeil II in
Fig. 1 , - Fig. 3 bis 5
- eine Einzelheit der Vorrichtung während aufeinander folgender Phasen der Handhabung (Faltung) der Beutelketten,
- Fig. 6
- einen Vertikalschnitt durch die Vorrichtung entsprechend Schnittlinie VI - VI in
Fig. 3 , - Fig. 7
- einen Horizontalschnitt durch die Vorrichtung entsprechend Schnittlinie VII - VII in
Fig. 2 , - Fig. 8
- eine Seitenansicht einer Einzelheit der Vorrichtung gemäß Pfeil VIII in
Fig. 10 , und - Fig. 9 und 10
- eine Seitenansicht einer Einzelheit der Vorrichtung gemäß Pfeil IX in
Fig. 7 während aufeinander folgender Phasen der Zuführung der gefalteten Beutelketten in einen Behälter.
- Fig. 1
- 3 shows a spatial, schematic representation of a device for handling bag chains,
- Fig. 2
- a side view of the device according to arrow II in
Fig. 1 . - 3 to 5
- a detail of the device during successive phases of handling (folding) the bag chains,
- Fig. 6
- a vertical section through the device according to section line VI - VI in
Fig. 3 . - Fig. 7
- a horizontal section through the device according to section line VII - VII in
Fig. 2 . - Fig. 8
- a side view of a detail of the device according to arrow VIII in
Fig. 10 , and - 9 and 10
- a side view of a detail of the device according to arrow IX in
Fig. 7 during successive phases of feeding the folded bag chains into a container.
Die Erfindung wird nachfolgend anhand einer Verpackungsmaschine 10 beschrieben, mit der Beutelketten 11 in Behälter 12 verpackt werden.The invention is described below with reference to a
Innerhalb des Behälters 12 sind die Beutelketten 11 gestapelt angeordnet. Die Erfindung befasst sich mit der Bildung dieser Stapel 13 und dem nachfolgenden Transport derselben in einen Behälter 12.The
Die Beutelketten 11 sind wie eingangs beschrieben ausgebildet, also als Kette von miteinander verbundenen Beuteln 17. Benachbarte Beutel 17 sind dabei in einem Verbindungsbereich 18 miteinander verbunden.The
In der Schneidstation 14 werden die Beutelketten 11 auf eine vorbestimmte Länge gekürzt. Hierzu dient ein Trennmesser 19 welches mit einem Gegenmesser 20 zusammen arbeitet, das auf einer anderen Seite der Beutelkette 11 angeordnet ist als das Trennmesser 19.In the cutting
Die in Richtung der Faltstation 15 geförderte Beutelkette 11 wird an Trennmesser 19 und Gegenmesser 20 vorbei transportiert, wobei über einen Sensor 21 die Position der Verbindungsbereiche 18 detektiert wird und die Beutelkette 11 bei einer bestimmten Länge durch Zusammenbewegung von Trennmesser 19 und Gegenmesser 20 im Verbindungsbereich 18 abgetrennt wird. Im vorliegenden Fall dienen Förderer 22 zum Transport der Beutelkette 11 in Richtung der Faltstation 15.The
Innerhalb der zu bildenden Stapel 13 sind die Beutel 17 bzw. die Beutelketten 11 in Lagen 23 angeordnet. Im vorliegenden Fall sind in jeder Lage 23 zwei Beutel 17 angeordnet. Die Anzahl der Beutel 17 pro Lage 23 kann jedoch abweichen. Es ist denkbar dass nur ein Beutel 17 pro Lage 23 vorgesehen ist. Auch mehrere Beutel 17 pro Lage 23 sind denkbar.The
Innerhalb eines Stapels 13 ist die Beutelkette 11 Zick-Zack-artig bzw.-förmig angeordnet. Entsprechend muss die Beutelkette 11 abwechselnd in zwei Richtungen gefaltet werden. Zu diesem Zweck sind im gezeigten Ausführungsbeispiel zwei Sternräder 24, 25 vorgesehen, mit deren Armen 26 die Beutelkette 11 abwechselnd in die eine und die andere Richtung gefaltet wird.Within a
Die beiden Sternräder 24, 25 sind jeweils um eine horizontale Achse 27 drehend angeordnet. Die Drehrichtung der beiden Sternräder 24, 25 ist dabei gegensinnig.The two
Beide Sternräder 24, 25 weisen die gleiche Anzahl an Armen 26 auf. Die Arme 26 sind jeweils radial gegenüber der Achse 27 gerichtet angeordnet. Zwischen benachbarten Armen 26 eines Sternrads 24, 25 sind jeweils Freiräume 28 ausgebildet.Both
Die beiden Sternräder 24, 25 bzw. deren Achsen 27 sind mit vertikalem Abstand zueinander angeordnet, jedoch derart, dass die Arme 26 eines Sternrads 24, 25 jeweils in die Freiräume 28 zwischen den Armen 26 des jeweils anderen Sternrads 25, 24 ragen. Vorzugsweise ist die Winkellage der Arme 26 jeweils um 90° versetzt zueinander. Auf diese Weise kann die Zick-Zack-Faltung der Beutelkette 11 erfolgen.The two
Die zugeführte Beutelkette 11 wird mit einem ersten Arm 26 des unteren Sternrads 25 vom Förderer 22 abgehoben. Dabei liegen die beiden Beutel 17 der ersten Lage 23 auf dem Arm 26 auf und ein freies Ende des Arms 26 reicht in den Verbindungsbereich 18 zum nächsten Beutel 17 (
Alternativ ist auch eine senkrechte Anordnung der Achsen 27 denkbar, sodass die Sternräder 24, 25 dann in einer horizontalen Ebene drehend angeordnet sind. Die Faltung der Beutelkette 11 erfolgt dann in einer horizontalen Ebene statt in einer vertikalen Ebene wie in den Fig. gezeigt.Alternatively, a vertical arrangement of the
Die beiden Sternräder 24, 25 können hinsichtlich des Antriebs gekoppelt sein, beispielsweise durch Zahnräder. Denkbar ist jedoch auch, dass die Sternräder 24, 25 durch unabhängige Servomotoren angetrieben werden. In diesem Fall ist es auch möglich die Drehgeschwindigkeiten der beiden Sternräder 24, 25 individuell anzupassen. Denkbar ist auch, die Drehgeschwindigkeiten der Sternräder 24, 25 zu variieren, um den Vorschub der Beutelkette 11 insbesondere im Einlaufbereich des Abförderers 16 möglichst konstant zu halten. Diese Variation der Drehgeschwindigkeiten kann für jedes Sternrad 24, 25 separat (individuell unterschiedlich) oder für beide Sternräder 24, 25 gemeinsam (beide übereinstimmend) vorgenommen werden.The two
Im Anschluss an die Faltorgane gelangt die gefaltete Beutelkette 11 in den Bereich des Abförderers 16. Hierzu werden die Beutel auf Führungen 38 abgesetzt und in Richtung des Abförderers 16 in ein Fach 29 geschoben.Following the folding members, the folded
Die Fächer 29 des Abförderers 16 werden oberseitig und unterseitig durch Fördertrume 30, 31 von Endlosförderern 32, 33 begrenzt, sowie seitlich durch Mitnehmer 34, die von den Fördertrumen 30, 31 abstehen. Der Abstand zwischen den übereinander verlaufend angeordneten Endlosförderern 32, 33 bzw. die Länge der Mitnehmer 34 ist so bemessen, dass die seitlichen Begrenzungen der Fächer 29 jeweils durch einen Mitnehmer 34 des Fördertrums 30 und einen Mitnehmer 34 des Fördertrums 31 gebildet werden. Zudem sind die Mitnehmer 34 und damit die Seitenwände der Fächer 29 in Förderrichtung des Abförderers 16 geneigt angeordnet.The
Durch die geneigten Mitnehmer 34 bzw. Seitwände sind die aufrecht stehenden Lagen 23 des Stapels 13 entsprechend geneigt angeordnet. Auf diese Weise können die Lagen 23 entsprechend angelehnt werden und neigen somit weniger zum Umfallen.Due to the
Alternativ ist es insbesondere denkbar, den Abförderer 16 insgesamt geneigt anzuordnen, wobei dann die Mitnehmer 34 senkrecht zu den Fördertrumen 30, 31 stehend angeordnet sein können, um die vorstehend beschriebene Situation zu erreichen. Weiterhin denkbar wäre eine im Wesentlichen vertikale Anordnung des Abförderers 16, sodass die Stapel 13 quasi wie in einem Schacht abwärts oder aufwärts transportiert werden können.Alternatively, it is conceivable in particular to arrange the
Im Anschluss an den Abförderer 16 gelangen die Stapel 13 auf eine Plattform 35, welche zur Annahme eines Stapels gegenüber einer gedachten horizontalen Ebene in die gleiche Richtung geneigt ausgebildet ist wie Mitnehmer 34. Bei der Zuführung eines Stapels 13 auf die Plattform 35 wird der Stapel 13 stromabwärts durch einen Gegenhalter 36 abgestützt, um zu verhindern, dass die Lagen 23 des Stapels 13 auseinanderfallen. Entsprechend wird der Gegenhalter 36 in Förderrichtung mit dem Stapel 13 bewegt, bis dieser auf der Plattform 35 angelangt ist (
Danach wird die Plattform 35 in eine horizontale Ebene geschwenkt bzw. in eine Stellung parallel zu Wandungen des Behälters 12 und der Stapel 13 quer zur Transportrichtung durch einen Schieber 37 in den Behälter 12 abgeschoben.
Claims (13)
- Method for handling a bag chain (11), wherein the bag chain (11) is folded into layers (23) to form a stack (13), and wherein the layers (23) each include one or multiple bags (17) of the bag chain (11), characterized in that the bag chain (11) is folded by at least two folding members which engage between the bags (17) of the bag chain (11) to fold the bag chain (11), and in that the bag chain (11) is folded by the folding members in such a manner that, to form the zig-zag layers, the bag chain (11) is folded first of all by a first folding member in one direction and then by another, second folding member in another direction which deviates from the first direction.
- Method according to Claim 1, characterized in that adjacent bags (17) of the bag chain (11) are connected together in a connection region (18), wherein the folding members engage in the bag chain (11) in the connection region (18) between adjacent bags (17) in order to fold the bag chain (11) there.
- Method according to Claim 1 or one of the other preceding claims, characterized in that the bag chain (11) is folded about the folding members as a result of relative movement between folding members and bag chain (11).
- Method according to Claim 1 or one of the other preceding claims, characterized in that the folding members are formed at least in part by arms (26) of one or of multiple rotationally driven star wheels (24, 25), wherein the arms (26) engage between adjacent bags (17) and as a result fold the bag chain (11).
- Method according to Claim 4 or one of the other preceding claims, characterized in that at least two star wheels (24, 25) are arranged on different, oppositely situated sides of the bag chain (11), wherein the arms (26) of the star wheels (24, 25), which are arranged on different, oppositely situated sides of the bag chain (11), engage in the bag chain (11) one after the other in an alternating manner in order to fold the bag chain (11) into zig-zag layers.
- Method according to Claim 1 or one of the other preceding claims, characterized in that the bags (17) of the bag chain (11), which are folded into layers (23), coming from the folding member or members, are fed to a removal conveyor (16), by way of which the folded bags (17) of the bag chain (11) are held in their formation during transport and are conveyed in the direction of a filling station for containers (12), wherein it is provided that the bags (17) of the bag chain (11) are transported with the removal conveyor (16) with the layers (23) standing upright and wherein it is further provided that the layers (23) are transported on the removal conveyor (16) at an angle to an imaginary vertical plane, in particular inclined in the direction of transport.
- Method according to Claim 1 or one of the other preceding claims, characterized in that the bags (17) of the bag chain (11), which are arranged in layers (23), are pushed into a container (12) by a slide (37), wherein the bags (17) of the bag chain (11), which are arranged in layers (23), coming from the removal conveyor (16), are transported to a pivotable platform (35) which is arranged at an angle for receiving the bags (17) of the bag chain (11) and which, for removing the bags (17) of the bag chain (11), is pivoted into a horizontal arrangement, or parallel to walls of the container (12) which is arranged adjacent to the platform (35).
- Device for handling a bag chain (11), wherein the bag chain (11) is folded into layers (23) to form a stack (13), and wherein the layers (23) each include one or multiple bags (17) of the bag chain (11), characterized in that the device comprises at least two folding members which are set up for the purpose of folding the bag chain (11) by the folding members engaging between the bags (17) of the bag chain (11), and in that the folding members are arranged on different, oppositely situated sides of the bag chain (11), wherein the folding members are set up for the purpose of the bag chain (11), for forming zig-zag layers, being foldable first of all by a first folding member in one direction and then by another second folding member in a different direction which deviates from the first direction.
- Device according to Claim 8 or one of the other preceding claims, characterized in that the folding members are formed at least in part by arms (26) of one or of multiple rotationally driven star wheels (24, 25), wherein the arms (26) are realized so as to engage between adjacent bags (17) and as a result fold the bag chain (11).
- Device according to Claim 9, characterized in that the star wheels (24, 25) are drivable in a continuously rotatable manner about parallel and horizontal axes (27) which are arranged at such a distance apart that an arm (26) of one star wheel (24, 25) engages in each case in a space (28) between two arms (26) of the other star wheel (25, 24), and wherein the bag chain (11) is guided through between the adjacent arms (26) of the oppositely situated star wheels (24, 25) and, in this case, is foldable as a result of the movement of the arms (26).
- Device according to Claim 8 or one of the other preceding claims, characterized in that the device comprises a removal conveyor (16) to which the bags (17) of the bag chain (11), which are folded into layers (23), coming from the folding members, are feedable, wherein the removal conveyor (16) comprises compartments (29) in each of which a folded bag chain (11) is received and which is set up for the purpose of holding the folded bags (17) of the bag chain (11) in their formation during transport with the removal conveyor (16).
- Device according to Claim 11, characterized in that the removal conveyor (16) is formed by two (endless) conveyors (32, 33) which each comprise entrainment means (34) which protrude in relation to a conveyor run (30, 31) of the respective conveyor (32, 33) such that the compartments (29) are defined by the conveyor runs (30, 31), facing one another, of the conveyors (32, 33) and the respective entrainment means (34), and wherein the entrainment means (34) are arranged on the conveyor runs (30, 31) at an angle in relation to an imaginary vertical plane, and wherein the bags (17) of the bag chain (11) abut against the entrainment means (34) by way of a side surface such that the layers (23) are transportable correspondingly standing in the compartments (29) at an angle in the transport direction.
- Device according to Claim 8 or one of the other preceding claims, characterized in that the device comprises a pivotable platform (35) for transferring the folded bag chains (11) to a container (12), wherein the platform (35) is arranged at an angle for taking over the folded bag chains (11), and for transferring the folded bag chains (11) is pivotable into a horizontal plane, or parallel to walls of the container (12) which is arranged adjacent to the platform (35).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017006885.2A DE102017006885A1 (en) | 2017-07-20 | 2017-07-20 | Method and device for handling bag chains |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3431400A1 EP3431400A1 (en) | 2019-01-23 |
EP3431400B1 true EP3431400B1 (en) | 2020-02-12 |
Family
ID=62909323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18000583.7A Active EP3431400B1 (en) | 2017-07-20 | 2018-07-09 | Method and device for handling bag webs |
Country Status (3)
Country | Link |
---|---|
US (1) | US20190023441A1 (en) |
EP (1) | EP3431400B1 (en) |
DE (1) | DE102017006885A1 (en) |
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Also Published As
Publication number | Publication date |
---|---|
DE102017006885A1 (en) | 2019-01-24 |
EP3431400A1 (en) | 2019-01-23 |
US20190023441A1 (en) | 2019-01-24 |
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