Dunnage conversion machine with translating grippers, and...

B - Operations – Transporting – 31 – D

Patent

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Details

B31D 5/00 (2006.01)

Patent

CA 2412440

A dunnage conversion machine for converting stock material into a dunnage product includes a forming assembly and a pulling assembly. The pulling assembly includes at least two grippers (62) movable together through a transfer region in opposition to one another and cooperative to grip therebetween the dunnage strip for advancing the dunnage strip through the transfer region, and at least one of the grippers including an aperture operative to gather and laterally capture therein the dunnage strip as the grippers move through the transfer region. Also disclosed is a severing assembly including a movable blade and a reciprocating actuator connected to the blade by a motion transmitting assembly that moves the blade through a full severing cycle upon a stroke of the actuator in either direction. Also disclosed is a void fill dunnage product including a three dimensional crumpled strip of dunnage round in cross-section and including at least one ply of sheet material having, in cross section, a crumpled multi-lobed undulating body, with the lobes thereof extending longitudinally and being dispersed in an irregular pattern.

L'invention concerne une machine de transformation de mati­re de rembourrage permettant de transformer une mati­re d'alimentation en produit de rembourrage. La machine comprend un ensemble de formage et un ensemble de traction. L'ensemble de traction comprend au moins deux pinces que l'on peut d~placer ensemble, ~ travers une zone de transfert. Ces pinces sont plac~es en opposition l'une par rapport ~ l'autre et peuvent coop~rer pour saisir entre elles la bande de rembourrage afin de lui faire traverser la zone de transfert. Au moins une des pinces comprend une ouverture op~rationnelle pour rassembler et attraper lat~ralement la bande de rembourrage dans ladite ouverture, lorsque les pinces se d~placent ~ travers la zone de transfert. L'invention concerne ~galement un ensemble de coupe comprenant une lame mobile et un actionneur ~ mouvement de va-et-vient, reli~ ~ la lame par un ensemble de transmission de mouvement, qui d~place la lame sur un cycle complet de coupe lors d'une course de l'actionneur dans un sens ou dans l'autre. L'invention concerne ~galement un produit de rembourrage destin~ ~ remplir les espaces vides, qui se pr~sente sous forme de bande froiss~e en trois dimensions pr~sentant une section circulaire et qui comprend au moins une couche de mati­re en feuille pr~sentant, en section transversale, un corps ondulant, multilob~, froiss~, dont les lobes s'~tendent de mani­re longitudinale et sont dispers~s selon un motif irr~gulier.

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