EP0640528B1 - Procédé et dispositif pour maintenir en place des couches de produits palettisés - Google Patents

Procédé et dispositif pour maintenir en place des couches de produits palettisés Download PDF

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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
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German (de)
English (en)
Other versions
EP0640528A1 (fr
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/fr
Application granted granted Critical
Publication of EP0640528B1 publication Critical patent/EP0640528B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65B13/00—Bundling articles
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/04—Applying 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)
  • Basic Packing Technique (AREA)
  • Pallets (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)

Claims (6)

  1. Procédé pour maintenir en place des produits palettisés comprenant les étapes de base suivantes:
    - palettisation d'objets par formation d'une couche d'objets sur un plan d'appui ou une couche d'objets placée au-dessous;
    - enroulement périmetral d'une bande autour de la couche d'objets;
    - fixation de la bande;
    caractérisé en ce qu'il comporte en outre les étapes suivantes:
    - mise en place des objets par formation d'une couche stable et maintien de cette couche et cette position par l'intermédiaire d'un bâti (1) comportant des côtés mobiles (2, 3; 4, 5);
    - déroulement de la bande extensible (18) à partir d'un rouleau moyennant un manchon (13) à travers lequel il y a le passage de la bande (18);
    - retenue de l'extrémité (19) de la bande (18) sortant du manchon (13) sur l'une des surfaces latérales de la couche (8);
    - enroulement de la bande (18) autour des surfaces latérales de la couche (8) moyennant le manchon (13);
    - déviation de la bande (18) de l'une des surfaces latérales de la couche (8) grâce à une pièce insérée (21) mobile verticalement;
    - déplacement vers le bas de la portion détournée, par l'intermédiaire de la pièce insérée mobile (21);
    - nouvel enroulement de la bande (18) jusqu'à quand sa portion finale (25) est amenée sur la portion (25) de la bande (18) détournée et déplacée vers le bas;
    - accrochage de la portion finale par un crochet (22) qui peut être déplacé par rapport à la pièce insérée (21);
    - déplacement vers le bas de la portion finale (25) et son introduction dans la boucle formée par la portion détournée;
    - déplacement vers le bas de la pièce insérée (21), de manière à libérer la portion détournée avec retour à la position initiale et superposition sur la portion finale;
    - coupe de la portion finale faisant saillie de la bande (18), et
    - libération de la portion finale du crochet (22).
  2. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, caractérisé en ce qu'il comporte:
    - un bâti (1) se composant d'une première paire de barres (2 et 3) parallèles entre elles et une deuxième paire de barres (4 et 5) parallèles entre elles, les barres (2, 3) de la première paire étant munies respectivement à leurs extrémités d'une glissière (6) dans laquelle sont reçues de manière coulissantes des portions extrêmes respectivement des barres (4, 5) de la deuxième paire,
    - des moyens actionneurs agissant sur les barres (2, 3 et 4, 5) de manière qu'une couche d'objets (8) soit renfermée sur une enceinte inférieure par quatre faces,
    - deux glissières (9 et 10) parallèles entre elles, disposées espacées par rapport aux barres (4, 5) et écartées des faces libres latérales de la couche (8), dans les glissières (9, 10) étant reçu de manière coulissante un chariot (11) de sorte qu'on peut causer le déplacement de ce dernier sur la face supérieure de la couche (8),
    de convenables moyens actionneurs étant prévus pour déplacer le chariot (11) au moins entre des positions limite qui se trouvent à l'extérieur du contour horizontal de la couche (8), le chariot (11) portant un manchon (13) qui est déplacé par un actionneur entre des positions limite établies par les glissières (9, 10) par déroulement de la bande extensible (18) du rouleau, et l'extrémité de la bande (18) sortant du manchon (13) étant retenue sur l'une des faces latérales de la couche (8),
    - une pièce insérée mobile (21) qui peut être déplacée verticalement et qui reçoit un crochet (25) susceptible de déplacement par rapport à la pièce mobile, et
    - des moyens de coupe destinés à couper la portion finale de la bande.
  3. Dispositif selon la revendication 2, caractérisé en ce que les moyens actionneurs sont des cylindres hydrauliques.
  4. Dispositif selon la revendication 2, caractérisé en ce que le chariot comporte une traverse (11) reçue de manière coulissante, avec ses extrémités, dans les glissières (9, 10) et portant de manière coulissante le long de son axe longitudinal le manchon (13).
  5. Dispositif selon la revendication 2, caractérisé en ce que la pièce insérée est formée d'un élément demicirculaire (21) dont la surface tournée vers l'extérieur par rapport à la face correspondante de la couche (8) est moletée.
  6. Dispositif selon les revendications précédentes, caractérisé en ce que le dispositif emploie une bande en polyéthylène basse densité (PE - low density).
EP94202355A 1993-08-25 1994-08-20 Procédé et dispositif pour maintenir en place des couches de produits palettisés Expired - Lifetime EP0640528B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBZ930034 1993-08-25
IT93BZ000034A IT1265502B1 (it) 1993-08-25 1993-08-25 Procedimento per assicurare in posizione prodotti palettizzati e apparecchiatura per l'attuazione del procedimento,

Publications (2)

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

Family

ID=11346607

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94202355A Expired - Lifetime EP0640528B1 (fr) 1993-08-25 1994-08-20 Procédé et dispositif pour maintenir en place des couches de produits palettisés

Country Status (3)

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

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 (de) 1997-09-04
ITBZ930034A1 (it) 1995-02-25
IT1265502B1 (it) 1996-11-22
EP0640528A1 (fr) 1995-03-01
ITBZ930034A0 (it) 1993-08-25

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