An unwinder (1) of rolls (B1, B2) including a bearing structure (3) and two pairs of arms (11A, 11B; 13A, 13B) supported movable on the bearing structure (3). The unwinder further includes a splicing machine (31). The bearing structure (3) includes a base (5) and an upright (7) extending from the base, on which a cross member (33) is supported. The cross member (33) includes an intermediate portion (33A) rigidly bound to the upright (7) and a pair of lateral supports (33B, 33C) adapted to assume at least one operating position and one non-operating position, with respect to the inter-mediate portion (33A) of the cross member (33).
B31F 1/28 - Fabrication de bandes dans lesquelles le creux de chaque ondulation est perpendiculaire à l'avancement des pièces en utilisant des cylindres cannelés engrenant l'un avec l'autre combinés avec l'assemblage des bandes ondulées et des bandes plates
B29C 35/06 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation avec des liquides, des gaz ou de la vapeur d'eau pour fabriquer des objets de longueur indéfinie
3.
Conveyor device for a corrugated web, corrugated board manufacturing line including the conveyor device, and method
A conveyor device for conveying a single face corrugated web on a bridge is disclosed. The conveyor device includes a lower guide roller, around which the single face corrugated web is guided. The conveyor device further includes an upper pinching and conveyance nip formed by a pair of nip members in pressure contact with one another. At least one of the nip members is motor-driven. The pinching and conveyance nip is configured to pull the single face corrugated web upwards from the lower guide roller.
B65H 20/02 - Progression des bandes par un rouleau de friction
B65H 27/00 - Structures particulières, p. ex. caractéristiques de surface, des rouleaux d'alimentation ou de guidage des bandes
B31F 1/28 - Fabrication de bandes dans lesquelles le creux de chaque ondulation est perpendiculaire à l'avancement des pièces en utilisant des cylindres cannelés engrenant l'un avec l'autre combinés avec l'assemblage des bandes ondulées et des bandes plates
4.
Splicing device for web materials, unwinder including the splicing device, and operating method
The splicing device for splicing a trailing edge of a first web material to a leading edge of a second web material includes members defining a feed path of the web material. The device also includes a first cutting member and a second cutting member, cooperating with the first cutting member. One of the two cutting members is provided with a movement transverse to the feed path of the web material, to move the cutting member from an operating position, in which it is in front of the other cutting member, to an idle position, withdrawn with respect to the feed path of the web material.
Disclosed is an unwinder with system for loading and unloading reels. The unwinder includes a rotating support with a rotation axis and provided with engaging members for engaging the reels. The unwinder further includes a positioning system for loading the reels onto the rotating support and an unloading system for unloading the reels from the rotating support. The positioning system includes a first conveyor for the reels and a pusher configured and arranged to push the reels from the first conveyor towards abutment members defining a pick-up position where the reel is taken by the rotating support. The positioning system and the unloading system are arranged at opposite sides of the rotating support.
A single facer including a first corrugating roller with a first rotation axis and a second corrugating roller with a second rotation axis. The two corrugating rollers form a corrugating nip, through which a paper sheet passes. The single facer also includes a pressing member, co-acting with the second corrugating roller and forming a pressure nip therewith, as well as a glue applicator co-acting with the second corrugating roller. With the second corrugating roller a suction box is associated, extending approximately parallel to the second rotation axis of the second corrugating roller and defining a suction area around the second corrugating roller. A series of laminar members, each of which is inserted in a respective one of the annular grooves of the second corrugating roller, are arranged between the pressing member and the first corrugating roller and extend in the respective annular grooves towards the suction box.
B31F 1/28 - Fabrication de bandes dans lesquelles le creux de chaque ondulation est perpendiculaire à l'avancement des pièces en utilisant des cylindres cannelés engrenant l'un avec l'autre combinés avec l'assemblage des bandes ondulées et des bandes plates
B32B 7/12 - Liaison entre couches utilisant des adhésifs interposés ou des matériaux interposés ayant des propriétés adhésives
The sheet stacker includes a sheet conveyor arrangement, configured for feeding a plurality of sheets and having a sheet discharge end, and a stacking bay. In the stacking bay sheets delivered by the sheet conveyor arrangement are formed into stacks. A stack conveyor is provided in the stacking bay and is movable in a conveyor direction parallel to a sheet feeding direction, according to which the sheets are fed from the sheet discharge end onto the stack conveyor. The sheet discharge end is configured and controlled such that it is gradually lifted during sheet stacking, in order to accommodate a growing stack of sheets being formed on the stack conveyor. A stop plate is positioned in the stacking bay above the stack conveyor and in front of the sheet discharge end of the sheet conveyor arrangement. The stop plate is configured and controlled to be gradually lifted from the stack conveyor as the sheet stack grows, to be withdrawn upon completion of the stack thus allowing removal of the stack in an evacuation direction substantially parallel to the conveyor direction, and to be lowered towards the stack conveyor again.
B65H 33/16 - Formation de lots comptés dans les piles ou dans le courant de délivrance des articles en déposant les articles en lots sur des supports mobiles
B65H 29/50 - Appareils d'empilage dont le point de décharge se déplace en fonction de la hauteur de la pile
B65H 31/02 - Récepteurs de piles avec support d'extrémité fixe contre lequel la pile s'entasse
B65H 31/30 - Dispositions pour enlever les piles achevées
B65H 33/08 - Déplacement de lots entiers, p. ex. en formant des piles échelonnées
B65H 31/36 - Dispositifs auxiliaires pour mettre en contact avec une butée frontale chaque article, au fur et à mesure qu'il est mis en pile
8.
REEL UNWINDER WITH SYSTEM FOR LOADING AND UNLOADING THE REELS
Disclosed is an unwinder (1) with system for loading and unloading reels (B, B1, B2).The unwinder (1) comprises a rotating support (5) with a rotation axis (A-A) and provided with engaging members (9) for engaging the reels (B, B1, B2). The unwinder further comprises a positioning system (21) for loading the reels (B, B1, B2) onto the rotating support (5) and an unloading system (22) for unloading the reels from the rotating support (5). The positioning system (21) comprises a first conveyor (27) for the reels and a pusher (29) configured and arranged to push the reels (B, B1, B2) from the first conveyor (27) towards abutment members (35A, 35B) defining a pick-up position where the reel is taken by the rotating support (5). The positioning system (21) and the unloading system (22) are arranged at opposite sides of the rotating support (5).
The splicing device for splicing a trailing edge of a first web material to a leading edge of a second web material includes members defining a feed path of the web material. The device also includes a first cutting member and a second cutting member, cooperating with the first cutting member. One of the two cutting members is provided with a movement transverse to the feed path of the web material, to move the cutting member from an operating position, in which it is in front of the other cutting member, to an idle position, withdrawn with respect to the feed path of the web material.
A sheet stacker including a sheet conveyor arrangement and a stacking bay, wherein sheets delivered by the sheet conveyor arrangement are formed into stacks; the stacking bay including a stacker platform. The stacker platform is provided with a vertical lifting and lowering movement with respect to a stationary supporting structure and is controlled to move downwards while a stack of sheets is formed thereon. The stacker platform supports a stack conveyor configured and controlled to perform at least an evacuation motion, to remove a completed stack from the stacking bay. The evacuation motion of the stack conveyor is oriented such that a completed stack is moved from the stacking bay onto an evacuation conveyor arranged under the sheet conveyor arrangement.
B65H 31/28 - Courroies, chaînes ou dispositifs de réception mobiles analogues
B65H 33/12 - Formation de lots comptés dans les piles ou dans le courant de délivrance des articles en créant des intervalles dans le courant de délivrance
B65G 57/03 - Empilage d'objets en ajoutant les objets au sommet de la pile par au-dessus
B65H 31/10 - Récepteurs de piles avec support d'extrémité mobile disposé pour reculer au fur et à mesure que la pile se forme les articles étant empilés les uns sur les autres et par le sommet de la pile
B65H 31/30 - Dispositions pour enlever les piles achevées
B65H 33/08 - Déplacement de lots entiers, p. ex. en formant des piles échelonnées
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