The device includes a stacking surface movable in a substantially vertical direction, on which layers of products to be packaged are superposed, and a pair of conveyors substantially superposed to feed the layers of products to the stacking surface. The device also includes a pair of walls substantially parallel, and substantially vertical, between which the layers of products are inserted by the conveyors when they are stacked on the stacking surface. The walls move reciprocally towards and away from each other to take a position of greater reciprocal distance, in which they do not interfere with the products deposited on the stacking surface, and a position of lesser reciprocal distance, in which they interfere with the products inserted therebetween.
B65G 57/09 - Empilage d'objets en ajoutant les objets au sommet de la pile par le côté
B65G 57/32 - Empilage d'objets caractérisé par l'empilage durant le transport
B65B 31/00 - Emballage d'objets ou de matériaux dans des conditions atmosphériques ou gazeuses particulièresAddition de propergols à des réceptacles pour aérosols
B65B 25/14 - Emballage de papier ou feuilles analogues, enveloppes ou journaux, à plat, pliés ou roulés
2.
IMPROVEMENTS TO PACKS OF TISSUE PAPER PRODUCTS, IN PARTICULAR PACKS OF ROLLS, AND RELATIVE METHODS AND MACHINES FOR THEIR PRODUCTION
There is described a pack (1) of tissue paper products (R) comprising a plurality of products wrapped in a plastic film (F), wherein said plastic film presents a device for opening and closing the pack.
B65B 25/14 - Emballage de papier ou feuilles analogues, enveloppes ou journaux, à plat, pliés ou roulés
B65B 61/18 - Dispositifs accessoires, non prévus ailleurs, opérant sur feuilles, flans, bandes, attaches, réceptacles ou paquets pour appliquer ou incorporer des éléments d'ouverture ou de déballage des paquets, p. ex. bandes de déchirure
B65D 75/58 - Dispositifs d'ouverture ou servant à retirer le contenu, ajoutés ou incorporés lors de la confection du paquet
3.
IMPROVED DEVICE FOR THE FORMATION OF GROUPS OF RODUCTS IN SEVERAL LAYERS
The device comprises: a stacking surface (3) movable in a substantially vertical direction, on which the layers (S1-S3) of superposed products to be packaged are arranged; a pair of conveyors (7, 9) substantially superposed to feed said layers to the stacking surface; a compacting wall (11), positioned approximately orthogonal to the direction of feed of the conveyors and therebelow. The lowering movement of the moving surface carries the layer or layers deposited thereon approximately to the height of the compacting wall, which compacts the products.
The device comprises a stacking surface (3) movable in a substantially vertical direction, on which layers (S1, S2, S3) of products (P) to be packaged are superposed, and a pair of conveyors (7, 9) substantially superposed to feed the layers of products to the stacking surface. The device also comprises a pair of walls (31 A, 31 B) substantially parallel, and substantially vertical, between which the layers of products are inserted by the conveyors when they are stacked on the stacking surface. The walls move reciprocally towards and away from each other to take a position of greater reciprocal distance, in which they do not interfere with the products deposited on the stacking surface, and a position of lesser reciprocal distance, in which they interfere with the products inserted therebetween.
The device for packaging groups of products (R) in a heat-sealable plastic film (F) comprises: a path for feed of the groups of products; and, in sequence along said path, folding members (17; 19; 25, 29) for folding in sequence four flaps of the plastic film projecting from the group of products in a direction transverse to the direction of feed of the group of products along said path of feed. Along the path of feed and on each side thereof, there develops a respective contrast element (19) that inserts itself between the group of products and at least one pair of folded and superimposed flaps. Said contrast element co-operates with a sealing assembly that carries out mutual heat- sealing of said two superimposed flaps.
B65B 11/42 - Enveloppement d'objets ou de quantités de matériaux, par déplacement de l'enveloppe et du contenu sur des parcours déterminés sur une combinaison de parcours rectiligne et courbe pour plier les enveloppes en forme de tube autour du contenu et ensuite former des plis de fermeture de forme similaire aux extrémités opposées du tube
B65B 25/14 - Emballage de papier ou feuilles analogues, enveloppes ou journaux, à plat, pliés ou roulés
6.
MACHINE AND METHOD FOR PACKAGING GROUPS OF PRODUCTS
To orient groups of products to be packaged in a plastic film the groups (G) are wrapped in lengths of film and fed between two series of opposite conveyor belts (211, 212). Each series of belts comprises several parallel belts controlled at proportionally variable speeds to cause the group (G) to rotate through approximately 90° about an axis orthogonal to the direction of feed.
B65B 25/14 - Emballage de papier ou feuilles analogues, enveloppes ou journaux, à plat, pliés ou roulés
B65B 35/58 - Retournage des objets par des moyens d'action positive, p. ex. pour présenter les parties étiquetées vers le haut
B65G 47/244 - Dispositifs pour influencer la position relative ou l'orientation des objets pendant le transport par transporteurs présentant les objets selon un orientement donné en les faisant tourner autour d'un axe sensiblement perpendiculaire au plan de transport
7.
MACHINE AND METHOD FOR FORMING GROUPS OF PRODUCTS ORDERED IN SUPERPOSED LAYERS
There is described a machine for forming groups of ordered products, each group comprising products disposed according to superposed layers (S). The machine comprises a succession of conveyors (5, 9, 11) aligned according to a principal direction (T) of alignment, with a feed conveyor and a delivery conveyor. The feed conveyor (5) receives single layers of products aligned with and spaced from one another; and the conveyors are disposed and controlled so as to distribute layers of products on a predetermined number of levels at different heights, and to unload onto the delivery conveyor a predetermined number of layers, superposed on one another, equal to the predetermined number of said levels at different heights.
A conveyor device, in particular for an automatic packaging machine for paper rolls, having a horizontal plane of advance, at least one pair of motorized flexible transmission members extending along a closed loop and bearing a plurality of transverse bars fastened to said flexible transmission members, a plurality of thruster elements borne by said bars, and a stationary adjustment station provided with at least one adjustment assembly having a grip organ movable in transverse direction and arranged in such a way as to displace in the transverse direction along the respective bar a thruster element positioned at the grip organ.
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