Manufacturing container or tube from paper; or other manufacturi – Tube making – With advancing of tube axially
Patent
1997-06-03
1998-09-29
Lavinder, Jack W.
Manufacturing container or tube from paper; or other manufacturi
Tube making
With advancing of tube axially
53551, 53552, B65H 4508, B65B 906, B65B 910
Patent
active
058139648
ABSTRACT:
A forming roller or a supporting roller for a packaging material web used for a liquid container according to the present invention comprises a plurality of rollers with outer peripheral surface thereof curved in axial direction of a rotating shaft, and the plurality of rollers are arranged at positions for forming a planar packaging material web into tubular shape or at positions for supporting the packaging material web after it has been formed into tubular shape. Each roller is divided into a plurality of roller portions by planes perpendicular to a rotating shaft thereof. The packaging material web is passed between the plurality of rollers, and the surface of the packaging material web is brought into contact with outer peripheral surface of the plurality of rollers. When said packaging material web is transported, each of the divided roller portions of the rollers is independently rotated. In this case, the roller portion having a smaller diameter is more quickly rotated than the roller portion with a larger diameter, and there will be no big difference in peripheral speed between the outer peripheral surfaces of the rollers. As a result, resistance of the rollers to the packaging material web is reduced, and the packaging material web is passed more smoothly.
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Lavinder Jack W.
Tetra Laval Holdings & Finance S.A.
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