EP0404719B1 - Method of filling bags with bulk material and device for carrying out the method - Google Patents

Method of filling bags with bulk material and device for carrying out the method Download PDF

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Publication number
EP0404719B1
EP0404719B1 EP90810422A EP90810422A EP0404719B1 EP 0404719 B1 EP0404719 B1 EP 0404719B1 EP 90810422 A EP90810422 A EP 90810422A EP 90810422 A EP90810422 A EP 90810422A EP 0404719 B1 EP0404719 B1 EP 0404719B1
Authority
EP
European Patent Office
Prior art keywords
wall
fingers
bag
finger
tip
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.)
Expired - Lifetime
Application number
EP90810422A
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German (de)
French (fr)
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EP0404719A1 (en
Inventor
Bruno Gründler
Werner Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schweizerische Industrie Gesellschaft
Original Assignee
Schweizerische Industrie Gesellschaft
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Publication of EP0404719A1 publication Critical patent/EP0404719A1/en
Application granted granted Critical
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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
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/34—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure

Description

Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zum Füllen von Beuteln mit Schüttgut.The present invention relates to a method and a device for filling bags with bulk material.

Gemäß dem beispielsweise aus der FR-A-1.258.889 bekannten. Verfahren werden in einem ersten Verfahrensschritt vier voneinander trennbare Ausformelemente einer Füllvorrichtung in eingezogenem Zustand in die Öffnung eines flachgefalteten Beutels gemeinsam eingesteckt, wobei diese Ausformelemente, die stabförmig ausgebildet sind, in einem zweiten Verfahrensschritt paarweise mittels einer parallelen Translationsbewegung voneinander getrennt werden, um in einem dritten Verfahrensschritt den Beutel zwischen den voneinander getrennten Ausformelementen hindurch mit dem Schüttgut füllen zu können, und wobei in einem vierten Verfahrensschritt die Ausformelemente vom Beutel herausgezogen werden.According to that known, for example, from FR-A-1,258,889. In a first process step, four separable mold elements of a filling device are inserted into the opening of a flat-folded bag in the retracted state, these mold elements, which are rod-shaped, being separated in pairs in a second process step by means of a parallel translation movement, in order to create a third Method step to be able to fill the bag with the bulk material between the mutually separated shaping elements, and in a fourth method step the shaping elements are pulled out of the bag.

Ein solches Verfahren erweist sich als nachteilig im Hinblick darauf, dass durch die parallele Translationsbewegung der Ausformelemente grosse Reibungskräfte entstehen, die zu einem relativ langsam durchführbaren Verfahren führen.Such a method proves to be disadvantageous in view of the fact that the parallel translational movement of the shaping elements creates large frictional forces which lead to a relatively slow method.

Aus der US-A-4,617,785 ist ferner eine Einrichtung bekannt, die nur ein Öffnen der Beutel mittels Klemmen gestattet, die ausschliesslich im oberen Bereich der Beutel wirken. Dieses Verfahren kann zwar relativ schnell durchgeführt werden, bringt jedoch den Nachteil mit sich, dass die Beutel nicht quaderförmig ausgebildet werden können.From US-A-4,617,785 a device is also known which only allows the bags to be opened by means of clamps which act exclusively in the upper area of the bags. Although this method can be carried out relatively quickly, it has the disadvantage that the bags cannot be cuboid.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren zum Füllen von Beuteln zu schaffen, das nebst einer guten Beutelformung auch eine schnelle und sichere Abfüllung von sperrigen Produkten gestattet.The invention is therefore based on the object of providing a method for filling bags which, in addition to good bag shaping, also allows bulky products to be filled quickly and safely.

Diese Aufgabe wird erfindungsgemäss durch ein Verfahren nach Anspruch 1 gelöst. Dadurch, dass die Ausformelemente schwenkbar ausgestaltet sind, ist es möglich nebst einer guten Beutelformung auch eine schnelle Abfüllung zu erreichen.According to the invention, this object is achieved by a method according to claim 1. Because the shaping elements are designed to be pivotable, it is also possible to achieve rapid filling in addition to good bag shaping.

Vorteilhafte Ausgestaltungen der Erfindung sind in weiteren Ansprüchen angegeben.Advantageous embodiments of the invention are specified in further claims.

Nachfolgend wird die Erfindung beispielsweise anhand einer Zeichnung näher erläutert. Dabei zeigt:

Fig. 1
eine schematische Darstellung einer Anlage mit einer Vorrichtung zur Durchführung des erfindungsgemässen Verfahrens, und
Fig. 2
eine schematische Darstellung einer Ausführung der Arbeitsweise einer solchen Vorrichtung.
The invention is explained in more detail below, for example with reference to a drawing. It shows:
Fig. 1
a schematic representation of a system with a device for performing the inventive method, and
Fig. 2
is a schematic representation of an embodiment of the operation of such a device.

In der in Fig. 1 schematisch dargestellten Einrichtung werden links Beutel und rechts Schachteln hergestellt. Die Beutel können aus einer kontinuierlichen Bahn 1 hergestellt werden, die aus einem warmverschweissbaren Material besteht, das mit einer Schweissnaht längs aneinanderstossender Längsränder versehen ist. Die benachbarten Enden von aufeinanderfolgend hergestellten Beuteln 2, 3, 4, 5, 6 werden warmverschweisst und abgeschnitten oder voneinander getrennt. Die in Fig. 1 dargestellten Beutel 5 und 6 sind bereits abgetrennt.In the device shown schematically in FIG. 1, bags are made on the left and boxes on the right. The bags can be produced from a continuous web 1, which consists of a heat-weldable material which is provided with a weld seam along longitudinal edges which abut one another. The adjacent ends of successively produced bags 2, 3, 4, 5, 6 are heat-sealed and cut off or separated from one another. The bags 5 and 6 shown in Fig. 1 are already separated.

Die Schachteln bilden steife Verpackungen, beispielsweise aus vorgeformten Kartons 11, die zuerst am Boden geschlossen werden, während die oberen Schliesslappen offen, vorzugsweise horizontal nach aussen gestreckt bleiben. Die Schachteln 12, 13, 14, ..., werden in an sich bekannter Weise geformt und in die Nähe der Beutel gebracht. Die Beutel 2, 3, 4, 5, 6 befinden sich nach dem Verschweissen und Trennen in einem flachgefalteten Zustand. Um die Beutel auszuspreizen sind Spreizvorrichtungen 21, 22, 23, ..., vorgesehen, die im geschlossenen Zustand in die gefalteten Beutel bis zum Beutelgrund eingeführt werden, um sie nachher zu öffnen und dadurch jeweils die Vorderwand von der Rückwand eines Beutels auseinanderzustrecken. In Fig. 1 ist die geschlossene Spreizvorrichtung 21 vorbereitet, um in einen Beutel eingeführt zu werden; die geschlossene Spreizvorrichtung 22 ist teilweise und die geschlossene Spreizvorrichtung 23 gänzlich in den Beutel 5 bzw. 6 eingeführt.The boxes form rigid packaging, for example from preformed cardboard boxes 11, which are first closed on the floor, while the upper closing flaps remain open, preferably horizontally stretched outwards. The boxes 12, 13, 14, ... are shaped in a manner known per se and brought into the vicinity of the bags. Bags 2, 3, 4, 5, 6 are in a flat-folded state after welding and separation. In order to spread out the bags, spreading devices 21, 22, 23,... Are provided which, in the closed state, are inserted into the folded bags as far as the bottom of the bag, in order to subsequently open them, and thereby in each case the front wall from the rear wall of a bag to spread apart. In Fig. 1, the closed spreader 21 is prepared to be inserted into a bag; the closed spreading device 22 is partially inserted and the closed spreading device 23 entirely in the bag 5 or 6.

In einem weiteren Verfahrensschritt werden die Beutel mit den eingesteckten, vorzugsweise noch geschlossenen Spreizvorrichtungen mindestens teilweise in die Schachteln eingeführt, um in dieser Lage die Beutel durch Oeffnen der Spreizvorrichtungen zu spreizen und sie mit dem Schüttgut zu füllen. Zu diesem Zweck weist die Einrichtung nach Fig. 1 einen Verteiler 31 auf, mit dessen Hilfe die Beutel gefüllt werden. Falls die Beutel am Anfang nur teilweise in die Schachteln eingeführt wurden, wird diese Operation jetzt vollständig nachgeholt, bis die Beutel zumindest angenähert den Boden der Schachteln berühren. In einem weiteren Verfahrensschritt werden die offenen Spreizvorrichtungen herausgezogen und die Schachteln verschlossen.In a further process step, the bags with the inserted, preferably still closed, spreading devices are at least partially inserted into the boxes in order to spread the bags in this position by opening the spreading devices and to fill them with the bulk material. For this purpose, the device according to FIG. 1 has a distributor 31, by means of which the bags are filled. If the bags were only partially inserted into the boxes at the beginning, this operation is now carried out completely until the bags at least approximately touch the bottom of the boxes. In a further process step, the open spreading devices are pulled out and the boxes are closed.

In Fig. 2 sind zwei taschenförmig oder flach gefaltete Beutel 41 und 42 und eine geschlossene Spreizvorrichtung 43 dargestellt, die im Begriff ist, in den Beutel 42 eingesteckt zu werden. Eine weitere geschlossene Spreizvorrichtung 44 ist in einen Beutel 45 eingeführt.In Fig. 2, two pocket-shaped or flat-folded bags 41 and 42 and a closed spreading device 43 are shown, which is about to be inserted into the bag 42. Another closed spreading device 44 is inserted into a bag 45.

Die Vorrichtung 43 weist vier steife Ausformelemente oder Finger 46, 47, 48 und 49 auf, die paarweise ausspreizbar sind. In der Vorrichtung 43 oder 44 befinden sich die Finger in einer geschlossenen Position, bei der sich die Spitzen der Finger 46 und 47 bzw. 48 und 49 nahezu berühren, wobei sie sich vorzugsweise auch an eingeebneten Flächen flach berühren könnten.The device 43 has four rigid shaping elements or fingers 46, 47, 48 and 49, which can be spread out in pairs. In the device 43 or 44 the fingers are in a closed position in which the tips of the fingers 46 and 47 or 48 and 49 almost touch, whereby they could preferably also touch flat on leveled surfaces.

In einen weiteren Beutel 50 ist eine dritte Spreizvorrichtung 51 eingeführt, deren Ausformelemente oder Finger paarweise bereits ausgespreizt wurden, so dass der Beutel nicht mehr taschenförmig ist, sondern zumindest angenähert einen Quader oder ein Parallelepiped bildet. Der Beutel 50 mit der eingesteckten offenen Vorrichtung 51 befindet sich oberhalb einer Schachtel 52, in die er in einem späteren Verfahrensschritt hineingesteckt wird.In a further bag 50, a third spreading device 51 is inserted, the shaping elements or fingers of which have already been spread out in pairs, so that the bag is no longer pocket-shaped, but at least approximately forms a cuboid or a parallelepiped. The bag 50 with the inserted open device 51 is located above a box 52, into which it is inserted in a later process step.

Fig. 2 zeigt auch einen Verteiler in Form eines Löffelpaares 53, das beispielsweise Corn-Flakes oder Maisflocken 54 in einen Beutel 55 fallen lässt. Nachdem ein Beutel 56 mit dem Schüttgut ausgefüllt ist, wird die in ihm noch eingesteckte offene Spreizvorrichtung 57 herausgezogen, und zwar vorzugsweise indem vor dem Herausbewegen der Spreizvorrichtung die Finger um einen geringen Betrag zusammengezogen wurden.2 also shows a distributor in the form of a pair of spoons 53 which, for example, drops corn flakes or corn flakes 54 into a bag 55. After a bag 56 is filled with the bulk material, the open spreading device 57 still inserted in it is pulled out, preferably by pulling the fingers together by a small amount before the spreading device is moved out.

Claims (10)

  1. A method of filling bags with bulk material, more particularly with cereal products, with the combination of the following method steps:
    a) joint insertion of four expandable shaping elements of an expanding device (43) in a closed state into the opening of a bag (42) folded flat, the shaping elements being constructed as rigid rod-like fingers (46, 47, 48, 49) and the expanding device (43; 57) comprising two walls in such a manner that two of the said fingers (46, 48) are fixed to one wall and the two other fingers (47, 49) are fixed to the other wall,
    b) expansion of the shaping elements with the aid of the expanding device (43; 57) in order to expand the bag, the expansion being carried out in such a manner that the expanding device moves from a closed expanding position into an open expanding position, in that in the closed expanding position on the one hand the tip of the first finger (46) of the first wall at least almost touches the tip of the first finger (47) of the second wall and on the other hand the tip of the second finger (48) of the first wall at least almost touches the tip of the second finger (49) of the second wall, and in that in the open expanding position the said four fingers (46, 47, 48, 49) at least approximately form a square or a parallelepiped,
    c) filling of the bags (55) with the bulk material (54) between the expanded shaping elements, and
    d) withdrawal of the shaping elements from the bag (56).
  2. A method according to claim 1, characterised in that the bag (50) is introduced with inserted shaping elements into a rigid package (52).
  3. A method according to claim 2, characterised in that the bag is at least partially introduced into the package (52) whilst still folded flat.
  4. A method according to claim 2 or 3, characterised in that the bag is filled with bulk material (54) before it is fully introduced into the package (52).
  5. A method according to claim 2 or 3, characterised in that the bag is filled with bulk material (54) after being fully introduced into the package (52).
  6. A method according to one of claims 1 to 5, characterised in that the shaping elements are drawn together to a small degree before being withdrawn.
  7. A device for carrying out the method according to one of claims 1 to 6, in which an expanding device (43; 57) is provided which comprises shaping elements constructed as rigid rod-like fingers (46, 47, 48, 49), the expanding device comprising two walls in such a manner that two of the said fingers (46, 48) are fixed to one wall and the two other fingers (47, 49) are fixed to the other wall, and the walls can be expanded from a closed expanding position into an open expanding position in such a manner that in the closed expanding position on the one hand the tip of the first finger (46) of the first wall at least almost touches the tip of the first finger (47) of the second wall and on the other hand the tip of the second finger (48) of the first wall at least almost touches the tip of the second finger (49) of the second wall, and in that in the open expanding position the said four fingers (46, 47, 48, 49) at least approximately form a square or a parallelepiped.
  8. A device according to claim 7, characterised in that the tips of the fingers (46, 47, 48, 49) comprise flattened surfaces, on which the tips can contact one another at least approximately flat.
  9. A device according to claim 7 or 8, characterised in that the fingers (46, 47, 48, 49) are dimensioned in such a manner that they extend into the bag base in the inserted state.
  10. A device according to one of claims 7 to 9, characterised in that the distributor (31; 53) is provided for filling the bags with bulk material (54).
EP90810422A 1989-06-20 1990-06-11 Method of filling bags with bulk material and device for carrying out the method Expired - Lifetime EP0404719B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2290/89 1989-06-20
CH229089 1989-06-20

Publications (2)

Publication Number Publication Date
EP0404719A1 EP0404719A1 (en) 1990-12-27
EP0404719B1 true EP0404719B1 (en) 1993-08-11

Family

ID=4230317

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EP90810422A Expired - Lifetime EP0404719B1 (en) 1989-06-20 1990-06-11 Method of filling bags with bulk material and device for carrying out the method

Country Status (5)

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US (1) US5095960A (en)
EP (1) EP0404719B1 (en)
JP (1) JPH03226401A (en)
CA (1) CA2019340A1 (en)
DE (1) DE59002277D1 (en)

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US5791386A (en) * 1997-03-28 1998-08-11 Tetra Laval Holdings & Finance, Sa Internal container guides for a fill pipe of a liquid packaging machine
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US6109570A (en) * 1997-10-10 2000-08-29 Heistand; Bryan T. Sandbag filling stand
DE10000632A1 (en) * 2000-01-10 2001-07-19 Klaus Mach Bag forming method and equipment for producing bags from mono plastic or composite film strip uses a special machine cuts and welds a film strip to any required size for fitting a cardboard container
DE10218165A1 (en) * 2002-04-23 2003-11-20 Rovema Gmbh Packing feed process for packing and sealing products involves fitting filled inner bag in outer shell and transporting them with the inner bag varying in height as it goes
US6912826B2 (en) * 2002-10-07 2005-07-05 Zoran Momich Carrier loading cartoner
US7497064B2 (en) * 2004-10-01 2009-03-03 Zoran Momich Vertical cartoner
US8333224B2 (en) * 2009-06-30 2012-12-18 The Coca-Cola Company Container filling systems and methods
AU2013205046B2 (en) * 2009-06-30 2015-09-24 The Coca-Cola Company Container filling systems and methods
GB201220784D0 (en) 2012-11-19 2013-01-02 Ocado Ltd Bag handling apparatus
NL2016144B1 (en) * 2016-01-25 2017-07-31 Vmi Holland Bv Packaging device and a method for packaging cosmetic pads in a bag.

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Also Published As

Publication number Publication date
JPH03226401A (en) 1991-10-07
DE59002277D1 (en) 1993-09-16
CA2019340A1 (en) 1990-12-20
US5095960A (en) 1992-03-17
EP0404719A1 (en) 1990-12-27

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