EP0640528B1 - Method and device for securing layers of palletized products - Google Patents

Method and device for securing layers of palletized products Download PDF

Info

Publication number
EP0640528B1
EP0640528B1 EP94202355A EP94202355A EP0640528B1 EP 0640528 B1 EP0640528 B1 EP 0640528B1 EP 94202355 A EP94202355 A EP 94202355A EP 94202355 A EP94202355 A EP 94202355A EP 0640528 B1 EP0640528 B1 EP 0640528B1
Authority
EP
European Patent Office
Prior art keywords
tape
layer
sleeve
small block
objects
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
EP94202355A
Other languages
German (de)
French (fr)
Other versions
EP0640528A1 (en
Inventor
Lorenz Pan
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.)
Lorenz Pan Srl
Original Assignee
Lorenz Pan Srl
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lorenz Pan Srl filed Critical Lorenz Pan Srl
Publication of EP0640528A1 publication Critical patent/EP0640528A1/en
Application granted granted Critical
Publication of EP0640528B1 publication Critical patent/EP0640528B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00Bundling articles
    • B65B13/02Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/04Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes with means for guiding the binding material around the articles prior to severing from supply

Definitions

  • the present invention relates to a method for securing the position of palletized products according to the preamble of claim 1 and an apparatus for carrying out this method according to the preamble of claim 2.
  • Objects palletized in layers on layers run the risk of falling, especially if the objects lying one above the other are on a common vertical parting plane which is common to the objects below, i.e. if they are over the gap.
  • the palletized objects require an expedient holding system that holds the objects together as much as possible on a horizontal common plane, so as to prevent them from falling off, especially during their movement on the pallet.
  • a ring is simply formed which is wrapped around the stack of objects in a vertical plane in such a way that they are held in vertical positions.
  • Systems are also known (cf., for example, US Pat. No. 4,230,579) which use self-adhesive tapes.
  • the object of the present invention is therefore to remedy the above-mentioned deficiencies by proposing a method by means of which it is possible to simultaneously remove the individual, even if to eliminate different shortcomings of the known systems and to provide a device which carries out the various process steps.
  • the objects of a layer are initially held in position so that they are placed in a stable position when pressed against each other. If the end of a stretchable band is then brought around the free side surfaces of a layer of objects by simply unwinding the band itself from a fixed roll, this process can be carried out with the greatest possible speed, above all because of the minimum amount of the initial forces to be overcome. With a simple overlay of the ends of the stretchable band, the band is held in position by its elasticity, the individual objects arranged in a single layer being pressed together. If you want to remove an object from a layer, the self-locking band can be opened by simply pulling on one of the ends of the band.
  • Claim 2 specifies a device that carries out the method according to the invention.
  • a frame is arranged in a support structure (not shown) of a device according to the invention.
  • the frame 1 consists of a pair of parallel rods 2 and 3 and a pair of parallel rods 4 and 5.
  • the ends of the rods 2, 3 are each provided with a guide profile 6 in which end sections of the rods 4 and 4 respectively 5 are slidably received.
  • Drive means not shown, for example in the form of pressurized piston-cylinder units act on the rods 2, 3 and 4, 5 in such a way that they are displaced in the direction of the arrows 7 and 7 'such that the rods along one lower web from four sides of a layer of previously palletized objects are closed all around. It is obvious that the drive means are designed such that the abutting objects of the layer 8 are pressed together in such a way that they are held firmly together in their mutual position.
  • FIG. 2 there are two in a plane parallel to the plane in which the frame 1 is located, in the construction of the device according to the invention, not shown parallel guides 9 and 10 are arranged, which are spaced from the rods 4 and 5 and the free side surfaces of the layer 8.
  • the ends of a carriage are received in the form of a carrying crossbar 11 in such a way that it can be moved above the top of the layer 8 according to the double arrow 12.
  • Suitable drive means are provided which carry out this translational movement according to the double arrow 12 at least between the end positions which are outside the horizontal outline of the layer 8.
  • the crossbar 11 movably carries a sleeve 13 which can be moved between the end positions defined by the guides 9 and 10 in the direction of the longitudinal axis of the crossbar 11 according to the arrows 14 and 15 by means of a drive, not shown. If the sleeve 13 is thus moved along the crossmember 11 in the end positions of the crossmember 11 relative to the guides 9 and 10 and the crossmember 11 within the guides 9 and 10 between the end positions of the guides 9 and 10, the sleeve 13 moves along that in FIG Orbit shown in dashed lines in the direction of arrow 17.
  • a tape 18 is unwound, which is guided into the upper opening of the sleeve 13, from the lower side of the sleeve 13 to emerge and to be held or held in position by means of a suitable hold-down device in the region of its end on one of the side faces of the layer 8.
  • the frame 1 for example its rod 2, carries a knotting device 20, generally designated 20.
  • This consists of a semicircular one Link 21 with a knurled surface that faces outward from the outer surface of sheet 8 and a hook 22 that extends over the upper side of semicircular link 21.
  • the semicircular member 21 is movable in a direction perpendicular to the plane of movement of the sleeve 13, and the hook 22 is adjustable relative to this plane and with respect to the semicircular member 21.
  • the frame 1 presses the objects of the position 8 together by adjusting its rods 2, 3 and 4, 5 according to the arrows 7 in such a way that the position arrangement is held and positioned. Then the end 19 of the band 18 is guided through the sleeve from the roll of an expandable band and held in position, for example by means of a pusher or hold-down device, not shown, or by hand on one of the surfaces of the layer, as is the case in the angled position of the figure 7 is shown. Starting from this fixed position of the band start, the sleeve 13 is moved along the crossmember 11 into a fixed end position on the crossmember 11.
  • the cross member is then moved along one of the guides 9, 10, the sleeve moving in its fixed position on the cross member 11 on the opposite side until the cross member 11 is stopped again. Then the sleeve 13 is moved along the crossmember in the opposite direction to the movement on the opposite side and then the sleeve along one of the Guides 9, 10 are retracted toward the bent end 19 of the tape to overlap the tape on that end while maintaining it in a fixed position. The sleeve is then moved on to the knotting device 20, in the meantime the first tape that has been deposited has been lowered and spaced from the surface of the layer 8 in order to bring the second tape section below the hook 22 (FIG. 4).
  • the second band section is superimposed on the first band section while the knotting device 20 is moved to bring the second band section by means of the hook 22 under the band section spaced from the layer ( Figure 5), whereupon the semicircular link removes the support from the band in such a way that the previously deposited tape is superimposed on the second deposited tape section, the final arrangement of the two sections shown in FIG. 6 being achieved after the tape coming from the roll has been expediently cut off automatically or by hand before the mutual superimposition of the two sections mentioned. Due to the elastic extensibility of the band, the angled band section 20 remains in its position.
  • the band For the required holding force, the band must have a minimum of elasticity and extensibility.
  • a three-layer, twisted foil tape could be used, which can be expanded to 300 to 600%, in order to nevertheless achieve an optimal fit to the surfaces of the layer of objects to be held together in a fixed position.
  • the device according to the invention does not take up any space from the upper side and can therefore be easily installed in a palletizing device without having to provide a separate station for binding the object layers. Tests have shown that complete layers can be handled comfortably and independently, without individual objects falling out of the binding according to the invention.
  • the pressure exerted by the stretchable band ensures sufficient frictional adhesion between the individual objects. This self-locking effect is optimally exerted by a tape made of a PE-low density material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pallets (AREA)
  • Basic Packing Technique (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)

Description

Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Lagensicherung von palettierten Produkten gemäß dem Oberbegriff des Anspruchs 1 und ein Gerät zur Ausführung dieses Verfahrens gemäß dem Oberbegriff des Anspruchs 2.The present invention relates to a method for securing the position of palletized products according to the preamble of claim 1 and an apparatus for carrying out this method according to the preamble of claim 2.

Auf Ebenen lagenweise palettierte Gegenstände laufen Gefahr herabzufallen, vor allem, wenn sich die übereinander liegenden Gegenstände an einer gemeinsamen vertikalen Trennebene befinden, die mit den darunterliegenden Gegenständen gemeinsam ist, d.h. wenn sie über Spalt liegen. So erfordern die palettierten Gegenstände ein zweckmäßiges Haltesystem, das die Gegenstände möglichst auf einer horiziontalen gemeinsamen Ebene zusammenhält, um so ein Herabfallen derselben vor allem während deren Bewegung auf der Palette zu vermeiden. Überdies ist es häufig wünschenswert, daß einzelne Lagen von einem Lagenstapel abgenommen werden können, um eine einzelne Lage von Gegenständen als Einheit zur Verfügung zu haben.Objects palletized in layers on layers run the risk of falling, especially if the objects lying one above the other are on a common vertical parting plane which is common to the objects below, i.e. if they are over the gap. For example, the palletized objects require an expedient holding system that holds the objects together as much as possible on a horizontal common plane, so as to prevent them from falling off, especially during their movement on the pallet. Furthermore, it is often desirable that individual layers can be removed from a stack of layers in order to have a single layer of objects available as a unit.

Dieses Problem versuchte man bis jetzt auf verschiedenste Weisen zu lösen. So ist beispielsweise bekannt, einen Stapel von aufgestapelten Gegenständen mittels einer diese zusammenhaltenden Schrumpffolie zu umhüllen. Es ist klar, daß für die Schrumpfung ein zweckmäßiges Gerät erforderlich ist, um die für die Schrumpfung der Folie erforderliche Wärme aufzubringen. Weitere Methoden zur Erzielung der stabilen Lage der gestapelten und geschichteten Gegenstände beruhen auf der im wesentlichen horizontalen Bindung der Gegenständestapel, wobei vorgesehen ist, zweckmäßig an ihren Enden stabil befestigte Stahlbänder derart zu umwickeln und deren Enden fest zu verbinden, daß ein geschlossener Umreifungsring gebildet wird. Bei einem weiteren Gerät ist beispielsweise ein Dreharm mit oberhalb der zu umwickelnden Lage angeordneten Drehmitte und mit einem freien Ende vorgesehen, das das Bindeband in den Bereich der freien Seite der zu umwickelnden Lage bringt. Bei einem weiteren Palettenbinder wird einfach ein Ring gebildet, der in einer senkrechten Ebene um den Stapel der Gegenstände herum derart gewickelt wird, daß diese in senkrechten Lagen festgehalten werden. Desweiteren sind auch Systeme bekannt (vgl. z.B. US-A-4 230 579), die Selbsklebebänder verwenden.So far, attempts have been made to solve this problem in various ways. For example, it is known to encase a stack of stacked objects by means of a shrink film holding them together. It is clear that a suitable device is required for the shrinkage in order to apply the heat required for the shrinkage of the film. Other methods to achieve the stable position of the Stacked and layered objects are based on the essentially horizontal binding of the object stack, with provision being made to wrap steel straps securely fastened at their ends and to firmly connect their ends in such a way that a closed strapping ring is formed. In another device, for example, a rotating arm is provided with a center of rotation arranged above the layer to be wrapped and with a free end, which brings the binding tape into the region of the free side of the layer to be wrapped. In another pallet binder, a ring is simply formed which is wrapped around the stack of objects in a vertical plane in such a way that they are held in vertical positions. Systems are also known (cf., for example, US Pat. No. 4,230,579) which use self-adhesive tapes.

All diesen bekannten Systemen ist bei der Sicherung einer stabilen Position von palettierten und geschichteten Gegenständen sowohl in Ruhestellung als auch während des Transportes gemeinsam, daß sie in ihrer Herstellung zu aufwendig sind, wie z.B. indem man den erwähnten von einem Förderer getragenen Dreharm vorsieht, oder sie sind bei der Anbringung des Haltemittels, das überdies nur mit Schwierigkeiten bei der Entnahme eines einzelnen Gegenstandes abgenommen werden kann, zu zeitaufwendig. Allen bekannten Systemen ist überdies gemeinsam, daß sie nur getrennt von einem Palettiergerät bekannter Art verwendet werden können und daher als gesonderte Station erstellt werden müssen.Common to all these known systems when securing a stable position of palletized and layered objects both in the rest position and during transport is that they are too complex to produce, e.g. by providing the above-mentioned rotating arm carried by a conveyor, or they are too time-consuming for the attachment of the holding means, which moreover can only be removed with difficulty when removing a single object. All known systems also have in common that they can only be used separately from a known type of palletizer and therefore must be created as a separate station.

Die Aufgabe der vorliegenden Erfindung liegt daher darin, die oben erwähnten Mängel zu beseitigen, indem ein Verfahren vorgeschlagen wird, mittels dessen es ermöglicht wird, gleichzeitig die einzelnen, auch wenn unterschiedlichen Mängel der bekannten Systeme zu beseitigen und ein Gerät zur Verfügung zu stellen, das die verschiedenen Verfahrensschritte ausführt.The object of the present invention is therefore to remedy the above-mentioned deficiencies by proposing a method by means of which it is possible to simultaneously remove the individual, even if to eliminate different shortcomings of the known systems and to provide a device which carries out the various process steps.

Diese Aufgabe wird bei einem erfindungsgemäßen Verfahren durch die im Anspruch 1 angegebenen, kennzeichnenden Merkmale und bei einem erfindungsgemäßen Gerät durch die kennzeichnenden Merkmale des Anspruchs 2 gelöst.This object is achieved in a method according to the invention by the characterizing features specified in claim 1 and in a device according to the invention by the characterizing features of claim 2.

Es ist anzumerken, daß die Gegenstände einer Lage anfangs derart in Position gehalten werden, daß sie gegeneinander zusammengedrückt in einer stabilen Position angeordnet sind. Wird dann das Ende eines dehnbaren Bandes um die freien Seitenflächen einer Lage von Gegenständen gebracht, indem einfach das Band selbst von einer festliegenen Rolle abgewickelt wird, kann dieser Vorgang mit einem Höchstmaß von Schnelligkeit vor allem wegen des Mindestmaßes von den zu überwindenden Anfangskräften erfolgen. Mit einer einfachen Überlagerung der Enden des dehnbaren Bandes, wird das Band durch seine Elastizität in Position gehalten, wobei die einzelnen in einer einzigen Lage angeordneten Gegenstände zusammengedrückt werden. Möchte man einen Gegenstand einer Lage entnehmen, kann das selbsthemmende Band durch eine einfache Zugausübung geöffnet werden, indem eines der Enden des Bandes ergriffen wird.It should be noted that the objects of a layer are initially held in position so that they are placed in a stable position when pressed against each other. If the end of a stretchable band is then brought around the free side surfaces of a layer of objects by simply unwinding the band itself from a fixed roll, this process can be carried out with the greatest possible speed, above all because of the minimum amount of the initial forces to be overcome. With a simple overlay of the ends of the stretchable band, the band is held in position by its elasticity, the individual objects arranged in a single layer being pressed together. If you want to remove an object from a layer, the self-locking band can be opened by simply pulling on one of the ends of the band.

Versuche haben zu dem Ergebnis geführt, daß es mittels des erfindungsgemäßen Gerätes möglich ist, ein Bindeband aus einem äußerst dehnbaren Material zu verwenden: somit ist es, im Gegensatz zu den bekannten Vorrichtungen, erstmals gelungen, eine Lösung zu finden, um optimal ein Hochdruckpolyäthylen, das sogenannte PE-low density, zu verwenden, das insbesondere für Verpackungszwecke angezeigt ist.Experiments have led to the result that by means of the device according to the invention it is possible to use a binding tape made of an extremely stretchable material: in contrast to the known devices, it was possible for the first time to find a solution to optimally use high-pressure polyethylene, the so-called PE low density, too use that is particularly indicated for packaging purposes.

Weitere Gestaltungen des erfindungsgemäßen Verfahrens gehen aus den abhängigen Ansprüchen hervor.Further designs of the method according to the invention emerge from the dependent claims.

Im Anspruch 2 wird ein Gerät angegeben, das das erfindungsgemäße Verfahren ausführt.Claim 2 specifies a device that carries out the method according to the invention.

Ausbildungen des erfindungsgemäßen Gerätes sind in den weiteren abhängigen Ansprüchen angegeben.Developments of the device according to the invention are specified in the further dependent claims.

Einzelheiten und Details des erfindungsgemäßen Gerätes werden nachfolgend unter Bezug auf die Figuren der beigelegten Zeichnung beschrieben. Es zeigen

Figur 1
einen Gegenständelagenhalterahmen eines erfindungsgemäßen Gerätes, in einem schematischen Schaubild,
Figur 2
in einem schematischen Schaubild teilweise eine Bandverteilervorrichtung,
Figur 3
in einem schematischen Teilschaubild das erfindungsgemäße Gerät während des Umlenkvorganges des Bandes,
Figur 4
in einem schematischen Schaubild den Endabschnitt des eingehakten Bandes,
Figur 5
in einem schematischen Schaubild den abgesenkten und festgeklemmten Abschnitt des eingehakten Bandes,
Figur 6
in einem schematischen Schaubild die Selbsthaltestellung der Bandabschnitte,
Figur 7
in einer schematischen Teilansicht den Anfangsabschnitt des Bandes, und
Figur 8
die Umlaufbahn der Verteilerhülse.
Details and details of the device according to the invention are described below with reference to the figures of the accompanying drawing. Show it
Figure 1
1 shows a schematic diagram of an object layer holding frame of a device according to the invention,
Figure 2
in a schematic diagram, partially a belt distribution device,
Figure 3
in a schematic partial diagram the device according to the invention during the deflection process of the belt,
Figure 4
in a schematic diagram the end section of the hooked tape,
Figure 5
in a schematic diagram the lowered and clamped section of the hooked tape,
Figure 6
the self-holding position of the belt sections in a schematic diagram,
Figure 7
in a schematic partial view of the beginning section of the tape, and
Figure 8
the orbit of the distributor sleeve.

Wie in Figur 1 gezeigt, ist in einem nicht gezeigtem Tragaufbau eines erfindungsgemäßen Gerätes ein im allgemeinen mit der Bezugsziffer 1 bezeichneter Rahmen angeordnet. Der Rahmen 1 besteht aus einem Paar von zueinander parallelen Stangen 2 und 3 und aus einem Paar von zueinander parallelen Stangen 4 und 5. Die Stangen 2, 3 sind an ihren Enden jeweils mit einem Führungsprofil 6 versehen, in dem Endabschnitte jeweils der Stangen 4 bzw. 5 gleitbar aufgenommen sind. Nicht gezeigte Antriebsmittel, beispielsweise in der Form von Druckmittel beaufschlagte Kolben-Zylinder-Einheiten, wirken auf die Stangen 2, 3 und 4, 5 derart ein, daß sie in Richtung der Pfeile 7 und 7' derart verschoben werden, daß die Stangen längs eines unteren Steges von vier Seiten einer Lage von zuvor palettierten Gegenständen rundum geschlossen werden. Es liegt nahe, daß die Antriebsmittel derart ausgelegt sind, daß die aneinander anliegenden Gegenstände der Lage 8 derart zusammengedrückt werden, daß sie in ihrer gegenseitigen Stellung fest zusammengehalten werden.As shown in FIG. 1, a frame, generally designated by the reference number 1, is arranged in a support structure (not shown) of a device according to the invention. The frame 1 consists of a pair of parallel rods 2 and 3 and a pair of parallel rods 4 and 5. The ends of the rods 2, 3 are each provided with a guide profile 6 in which end sections of the rods 4 and 4 respectively 5 are slidably received. Drive means, not shown, for example in the form of pressurized piston-cylinder units act on the rods 2, 3 and 4, 5 in such a way that they are displaced in the direction of the arrows 7 and 7 'such that the rods along one lower web from four sides of a layer of previously palletized objects are closed all around. It is obvious that the drive means are designed such that the abutting objects of the layer 8 are pressed together in such a way that they are held firmly together in their mutual position.

Wie in Figur 2 gezeigt, sind in einer zur Ebene, in der sich der Rahmen 1 befindet, parallelen Ebene, im nicht gezeigten Aufbau des erfindungsgemäßen Gerätes, zwei zueinander parallele Führungen 9 und 10 angeordnet, die gegenüber den Stangen 4 und 5 und den freien Seitenflächen der Lage 8 beabstandet sind. In den Führungen 9 und 10 sind die Enden eines Wagens in der Form einer Tragtraverse 11 derart aufgenommen, daß diese oberhalb der Oberseite der Lage 8 gemäß dem Doppelpfeil 12 beweglich ist. Es sind geeignete, nicht gezeigte Antriebsmittel vorgesehen, die diese translatorische Bewegung gemäß dem Doppelpfeil 12 mindestens zwischen den Endstellungen ausführen, die sich außerhalb des horizontalen Umrisses der Lage 8 befinden. Die Traverse 11 trägt beweglich eine Hülse 13, die mittels eines nicht gezeigten Antriebs in Richtung der Längsachse der Traverse 11 gemäß den Pfeilen 14 und 15 zwischen den durch die Führungen 9 und 10 festgelegten Endstellungen bewegbar ist. Wird so die Hülse 13 längs der Traverse 11 in den Endstellungen der Traverse 11 gegenüber den Führungen 9 und 10 und die Traverse 11 innerhalb der Führungen 9 und 10 zwischen den Endstellungen der Führungen 9 und 10 bewegt, bewegt sich das Hülse 13 längs der in 16 strichliert dargestellten Umlaufbahn in Richtung des Pfeils 17. Von einer nicht gezeigten und vom Aufbau des erfindungsgemäßen Gerätes auf frei drehbare Weise getragene Bandrolle, wird ein Band 18 abgewickelt, das in die obere Öffnung der Hülse 13 geführt wird, um aus der unteren Seite der Hülse 13 auszutreten und mittels eines geeigneten Niederhalters im Bereich seines Endes an einer der Seitenflächen der Lage 8 festgehalten bzw. in Stellung gehalten zu werden.As shown in FIG. 2, there are two in a plane parallel to the plane in which the frame 1 is located, in the construction of the device according to the invention, not shown parallel guides 9 and 10 are arranged, which are spaced from the rods 4 and 5 and the free side surfaces of the layer 8. In the guides 9 and 10, the ends of a carriage are received in the form of a carrying crossbar 11 in such a way that it can be moved above the top of the layer 8 according to the double arrow 12. Suitable drive means, not shown, are provided which carry out this translational movement according to the double arrow 12 at least between the end positions which are outside the horizontal outline of the layer 8. The crossbar 11 movably carries a sleeve 13 which can be moved between the end positions defined by the guides 9 and 10 in the direction of the longitudinal axis of the crossbar 11 according to the arrows 14 and 15 by means of a drive, not shown. If the sleeve 13 is thus moved along the crossmember 11 in the end positions of the crossmember 11 relative to the guides 9 and 10 and the crossmember 11 within the guides 9 and 10 between the end positions of the guides 9 and 10, the sleeve 13 moves along that in FIG Orbit shown in dashed lines in the direction of arrow 17. From a tape roll, not shown and carried by the construction of the device according to the invention in a freely rotatable manner, a tape 18 is unwound, which is guided into the upper opening of the sleeve 13, from the lower side of the sleeve 13 to emerge and to be held or held in position by means of a suitable hold-down device in the region of its end on one of the side faces of the layer 8.

Wie in Figur 3 gezeigt, trägt der Rahmen 1, z.B. seine Stange 2 eine im allgemeinen mit 20 bezeichnete Knotvorrichtung 20. Diese besteht aus einem halbkreisförmigen Glied 21 mit einer gerändelten Oberfläche, die gegenüber der Außenfläche der Lage 8 nach außen gewandt ist, und aus einem Haken 22, der über die obere Seite des halbkreisförmigen Gliedes 21 reicht. Das halbkreisförmige Glied 21 ist in eine zur Bewegungsebene der Hülse 13 senkrechten Richtung beweglich, sowie der Haken 22 gegenüber dieser Ebene und bezüglich des halbkreisförmigen Gliedes 21 verstellbar ist.As shown in FIG. 3, the frame 1, for example its rod 2, carries a knotting device 20, generally designated 20. This consists of a semicircular one Link 21 with a knurled surface that faces outward from the outer surface of sheet 8 and a hook 22 that extends over the upper side of semicircular link 21. The semicircular member 21 is movable in a direction perpendicular to the plane of movement of the sleeve 13, and the hook 22 is adjustable relative to this plane and with respect to the semicircular member 21.

Die Wirkungsweise des erfindungsgemäßen Gerätes kann wie folgt kurz umschrieben werden:The mode of operation of the device according to the invention can be briefly described as follows:

Man nehme an, daß eine Anzahl von Gegenständen in einer Lage 8 auf einer Palette angeordnet sei. Um die Lage 8 in ihrer Stellung festzuhalten, drückt der Rahmen 1 durch Verstellung seiner Stangen 2, 3 und 4, 5 gemäß den Pfeilen 7 die Gegenstände der Lage 8 derart zusammen, daß die Lageanordnung festgehalten und positioniert wird. Danach wird von der Rolle eines dehnbaren Bandes das Ende 19 des Bandes 18 durch die Hülse geführt und beispielsweise mittels eines nicht gezeigten Drückers bzw. Niederhalters oder auch von Hand auf einer der Flächen der Lage in Stellung gehalten, wie dies in der abgewinkelten Stellung der Figur 7 gezeigt ist. Die Hülse 13 wird, ausgehend von dieser festliegenden Stellung des Bandanfanges, längs der Traverse 11 in eine feste Endstellungen auf der Traverse 11 bewegt. Die Traverse wird danach längs einer der Führungen 9, 10 verschoben, wobei sich die Hülse in seiner festen Stellung auf der Traverse 11 auf der gegenüberliegenden Seite so lange bewegt, bis die Traverse 11 wieder angehalten wird. Anschließend wird die Hülse 13 längs der Traverse in entgegengesetzter Richtung gegenüber der Bewegung auf der gegenüberliegenden Seite bewegt und dann die Hülse längs einer der Führungen 9, 10 in Richtung des abgebogenen Endes 19 des Bandes zurückgeführt, um das Band auf diesen Ende in Überlappung zu bringen, wobei es in einer festliegenden Stellung gehalten wird. Die Hülse wird dann bis zur Knotvorrichtung 20 weiterbewegt, wobei in der Zwischenzeit das zuerst abgelegte Band abgesenkt und gegenüber der Fläche der Lage 8 beabstandet wurde, um den zweiten Bandabschnitt unterhalb des Hakens 22 zu bringen (Figur 4). Der zweite Bandabschnitt wird dem zuerst abgelegten Bandabschnitt überlagert, während die Knotvorrichtung 20 bewegt wird, um den zweiten Bandabschnitt mittels des Hakens 22 unter den von der Lage (Figur 5) beabstandeten Bandabschnitt zu bringen worauf das halbkreisförmige Glied dem Band die Auflage derart entzieht, daß das zuvor abgelegte Band dem als zweiten abgelegten Bandabschnitt überlagert wird, wobei die Endanordnung der beiden in Figur 6 dargestellten Abschnitte erreicht wird, nachdem zweckmäßiger Weise das von der Rolle herkommende Band vor den gegenseitigen Überlagerungen der beiden genannten Abschnitte automatisch oder von Hand abgeschnitten wurde. Durch die elastische Dehnbarkeit des Bandes bleibt der abgewinkelte Bandabschnitt 20 fest in seiner Lage.Assume that a number of objects are arranged in a layer 8 on a pallet. In order to hold the position 8 in position, the frame 1 presses the objects of the position 8 together by adjusting its rods 2, 3 and 4, 5 according to the arrows 7 in such a way that the position arrangement is held and positioned. Then the end 19 of the band 18 is guided through the sleeve from the roll of an expandable band and held in position, for example by means of a pusher or hold-down device, not shown, or by hand on one of the surfaces of the layer, as is the case in the angled position of the figure 7 is shown. Starting from this fixed position of the band start, the sleeve 13 is moved along the crossmember 11 into a fixed end position on the crossmember 11. The cross member is then moved along one of the guides 9, 10, the sleeve moving in its fixed position on the cross member 11 on the opposite side until the cross member 11 is stopped again. Then the sleeve 13 is moved along the crossmember in the opposite direction to the movement on the opposite side and then the sleeve along one of the Guides 9, 10 are retracted toward the bent end 19 of the tape to overlap the tape on that end while maintaining it in a fixed position. The sleeve is then moved on to the knotting device 20, in the meantime the first tape that has been deposited has been lowered and spaced from the surface of the layer 8 in order to bring the second tape section below the hook 22 (FIG. 4). The second band section is superimposed on the first band section while the knotting device 20 is moved to bring the second band section by means of the hook 22 under the band section spaced from the layer (Figure 5), whereupon the semicircular link removes the support from the band in such a way that the previously deposited tape is superimposed on the second deposited tape section, the final arrangement of the two sections shown in FIG. 6 being achieved after the tape coming from the roll has been expediently cut off automatically or by hand before the mutual superimposition of the two sections mentioned. Due to the elastic extensibility of the band, the angled band section 20 remains in its position.

Für die erforderliche Haltekraft muß das Band ein Mindestmaß an Elastizität und Dehnbarkeit aufweisen. So könnte z.B. ein dreischichtiges, gezwirntes Folienband verwendet werden, das auf 300 bis 600% ausgedehnt werden kann, um so trotzdem eine optimale Anschmiegung an die Flächen der Lage von in festliegender Stellung zusammenzuhaltenden Gegenständen zu erreichen.For the required holding force, the band must have a minimum of elasticity and extensibility. For example, a three-layer, twisted foil tape could be used, which can be expanded to 300 to 600%, in order to nevertheless achieve an optimal fit to the surfaces of the layer of objects to be held together in a fixed position.

Es ist hervorzuheben, daß das erfindungsgemäße Gerät von der oberen Seite her keinen Platz beansprucht und daher in ein Palettiergerät gut einbaubar ist, ohne daß eine eigene Station für die Bindung der Gegenständelagen vorgesehen werden muß. Versuche haben ergeben, daß vollständige Lagen bequem und selbständig gehandhabt werden können, ohne daß einzelne Gegenstände aus der erfindungsgemäßen Bindung herausfallen könnten. Die durch das dehnbare Band ausgeübte Pressung gewährleistet eine ausreichende Reibhaftung zwischen den einzelnen Gegenständen. Diese selbstklemmende Wirkung wird auf optimale Weise von einem Band aus einem Material Typ PE-low density ausgeübt.It should be emphasized that the device according to the invention does not take up any space from the upper side and can therefore be easily installed in a palletizing device without having to provide a separate station for binding the object layers. Tests have shown that complete layers can be handled comfortably and independently, without individual objects falling out of the binding according to the invention. The pressure exerted by the stretchable band ensures sufficient frictional adhesion between the individual objects. This self-locking effect is optimally exerted by a tape made of a PE-low density material.

Zweckmäßige, am dargestellten Gerät vorgenommene Änderungen und Varianten sind ohne weiteres möglich, ohne den Schutzbereich der Ansprüche zu verlassen. So könnten alle Antriebe verschieden und bekannter Art sein. Das Abschneiden des Bandes kann sowohl von Hand als auch durch geeignete, auf dem Markt bekannte Scherschneidvorrichtungen erfolgen.Appropriate changes and variants made to the device shown are easily possible without leaving the scope of the claims. So all drives could be different and known type. The tape can be cut by hand or by suitable shear cutters known on the market.

Claims (6)

  1. A method of securing palletized products in place, comprising the following base steps:
    - palletizing objects by formation of a layer of objects on a supporting plane or an underlying object layer;
    - perimetrically winding a tape around the object layer;
    - fixing the tape;
    characterized in that it further comprises the following steps:
    - positioning the objects by formation of a steady layer and holding said layer and position by means of a frame (1) made of movable sides (2, 3; 4, 5);
    - unrolling an extensible tape (18) from a roll by means of a sleeve (13) passed through by the tape (18),
    - holding the tape (18) end (19) emerging from the sleeve (13) on one of the side surfaces of the layer (8);
    - winding the tape (18) about the side surfaces of the layer (8) by means of the sleeve (13);
    - deflecting the tape (18) from one of the side surfaces of the layer (8) by means of a vertically-movable small block (21);
    - lowering the deflected portion by means of the movable small block (21);
    - further winding the tape (18) until it is brought by an end portion (25) thereof onto the deflected and lowered portion (25) of the tape (18);
    - hooking the end portion (25) by means of a hook (22) relative to the small block (21);
    - lowering the small block (21) by insertion into the loop formed by the deflected portion;
    - lowering the small block (21) thereby releasing the deflected portion which will return to its starting position and will be overlapped with the end portion;
    - cutting the end portion projecting from the tape (18), and
    - releasing the end portion from the hook (22).
  2. A device for carrying into effect the method of claim 1, characterized in that it consists of:
    - a frame (1) made up of a first pair of bars (2 and 3) parallel to each other and a second pair of bars (4 and 5) parallel to each other, the bars (2, 3) of the first pair being respectively provided at their ends with a slide within which end Portions of the bars (4, 5) forming the second pair are respectively slidably received,
    - actuator means acting on the bars (2, 3 and 4, 5) so that a layer of objects (8) is held on a lower enclosure by four faces,
    - two slides (9 and 10) parallel to each other, disposed spaced apart from the bars (4, 5) and from the free side faces of the layer (8), a carriage (11) being slidably received in slides (9, 10) so that said carriage can be moved over the upper face of layer (8), suitable actuator means being provided to move the carriage (11) at least between two limit positions that are located outside the horizontal contour of layer (8), carriage (11) bearing a sleeve (13) that is moved by an actuator between limit positions determined by the slides (9, 10) by unrolling of the extensible tape (18) from the roll, and the tape (18) end emerging from the sleeve (13) being held fast on one of the side faces of layer (8),
    - a small block (21) vertically movable and receiving a hook (25) capable of being displaced relative to said small block, and
    - cutting means adapted to cut the tape end portion.
  3. A device according to claim 2, characterized in that the actuator means consists of hydraulic cylinders.
  4. A device according to claim 2, characterized in that the carriage is made up of a crosspiece (11) slidably received by its ends in the slides (9, 10) and slidably carrying the sleeve (13) along its longitudinal axis.
  5. A device according to claim 2, characterized in that the small block is made of a semicircular element (21) having a knurled surface facing outwardly relative to the corresponding face of layer (8).
  6. A device according to the preceding claims, characterized in that the device uses a low-density polyethylene tape.
EP94202355A 1993-08-25 1994-08-20 Method and device for securing layers of palletized products Expired - Lifetime EP0640528B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT93BZ000034A IT1265502B1 (en) 1993-08-25 1993-08-25 PROCEDURE TO SECURE PALLETIZED PRODUCTS AND EQUIPMENT IN POSITION FOR THE IMPLEMENTATION OF THE PROCEDURE,
ITBZ930034 1993-08-25

Publications (2)

Publication Number Publication Date
EP0640528A1 EP0640528A1 (en) 1995-03-01
EP0640528B1 true EP0640528B1 (en) 1997-07-23

Family

ID=11346607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94202355A Expired - Lifetime EP0640528B1 (en) 1993-08-25 1994-08-20 Method and device for securing layers of palletized products

Country Status (3)

Country Link
EP (1) EP0640528B1 (en)
DE (1) DE59403439D1 (en)
IT (1) IT1265502B1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230519A (en) * 1978-09-08 1980-10-28 Lathrop Paulson Company Tape applying apparatus

Also Published As

Publication number Publication date
DE59403439D1 (en) 1997-09-04
EP0640528A1 (en) 1995-03-01
ITBZ930034A0 (en) 1993-08-25
IT1265502B1 (en) 1996-11-22
ITBZ930034A1 (en) 1995-02-25

Similar Documents

Publication Publication Date Title
DE602005005770T2 (en) Apparatus and method for packaging tires
EP0320797B1 (en) Device for packaging printed matter
EP2516081B1 (en) Support for a metal coil and apparatuses comprising such a support
DE3540490C1 (en) Winding machine for winding a longitudinally divided web
EP0890509B1 (en) Method and device for tying single objects or stacks of objects
DE3411295A1 (en) PALLETISING DEVICE
DE4100211C2 (en) Method and device for producing a core winding for an electrical transformer from strips of amorphous ferromagnetic metal
EP0475019B1 (en) Method and apparatus for wrapping a palettised load with a foil strap
DE3908451A1 (en) CUTTING AND WRAPPING DEVICE FOR FILM STRIPS
EP0640528B1 (en) Method and device for securing layers of palletized products
EP0093301B1 (en) Device for changing a winding core coiled with winding material
DE4401818A1 (en) Grip for stack of sheet material
AT394508B (en) PLANT FOR PRODUCING STRAPPED WIRE ROLLS
EP1515894B1 (en) System for packaging a flexible web that is layered in zigzag loops, in particular a textile web
DE1963531A1 (en) Packaging method and device therefor
DE3503715C2 (en)
DE4120440A1 (en) METHOD, MAGAZINE STRAND AND DEVICE FOR ATTACHING U-SHAPED BENDING CLAMPS
DE2649634C3 (en) Device for stacking plate packs
DE3912852C2 (en) Method and device for forming loading units using a web-shaped stretch film
DE602004013164T2 (en) WINDING DEVICE FOR ROLLERS
DE2937180A1 (en) DEVICE FOR LOADING PALLETS WITH INDIVIDUAL LAYOUTS COMPOSED TO THE PALLET DIMENSIONS, IN PARTICULAR PACKAGES, BAGS OR THE LIKE.
EP0952081A1 (en) Method and device for strapping at least two products
DE2223035C3 (en) Method and device for the manufacture of sheet metal position with precise parallelism of the long edges
DE4143460C2 (en) Mfg. transformer core from amorphous metal strips
EP1350720B1 (en) Method and apparatus for packaging a stack of articles

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19950517

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19961008

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19970723

Ref country code: FR

Effective date: 19970723

REF Corresponds to:

Ref document number: 59403439

Country of ref document: DE

Date of ref document: 19970904

EN Fr: translation not filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19970723

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19981019

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000601