B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 29/66 (2006.01) B65H 45/24 (2006.01) B65H 45/28 (2006.01)
Patent
CA 2483175
A mechanism for offsetting or overlapping successive sheets of material in an interfolding machine includes a bed roll rotating at a first speed and a retard roll rotating at a slower, second speed and positioned adjacent the bed roll. As successive sheets are transferred from the bed roll to the retard roll, the sheets are engaged by a nip roller assembly positioned adjacent the retard roll and forming a nip through which the sheets pass. The retard roller forms a deflection or bubble in the individual sheet passing through the nip, which enables a successive sheet to be positioned beneath the previous sheet, thereby forming the overlap of the successive sheet with the previous sheet.
Mécanisme de décalage ou de superposition de feuilles de tel ou tel matériau se présentant successivement dans une machine à entreplier. Le mécanisme comprend un rouleau animé d'une certaine vitesse de rotation et un rouleau retardateur tournant moins vite et adjacent au précédent. Au fur et à mesure que les feuilles passent du premier au deuxième rouleau, elles sont happées par un ensemble de rouleaux adjacents au rouleau retardateur et formant un espace à travers lequel les feuilles sont pressées. Au moment de ce pressage, le rouleau retardateur induit une déflexion (ou une bulle) dans la feuille, ce qui permet à la suivante de se glisser dessous, d'où la superposition recherchée.
Borden Ladner Gervais Llp
Fabio Perini S.p.a.
Fpna Acquisition Corporation
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