Machine for pre-forming and rewinding film for side welded bags

Manufacturing container or tube from paper; or other manufacturi – Container making – Pliable container

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Details

493194, 242 675, B65H 1800, B31B 174

Patent

active

051940620

ABSTRACT:
An apparatus and method for processing and rewinding a web made of easily stretchably deformable plastic film or the like. The web is drawn from a supply roll assembly by a series of synchronously driven draw and transfer rolls and directly delivered to a rewind roll. The rewind roll is positively driven at a speed greater than speed imparted to the web by the draw and transfer rolls. However, the rewind roll is in peripheral contact with the last of the series of draw and transfer rolls so that the processed web is immediately transferred from the last web moving roll to the rewind roll, while the last roll exerts a drag on the rewind roll to control and match the speed of the rewind roll to the speed of the moving web.

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LeMin, Joseph R., "Top Billing for Slitting From Converting Industry", Paper, Film & Foil Converter, Jul. 1989, pp. 72-73.
Lamson, Wade P. "Controlling Web Tension Critical in Center Winders", Paper, Film & Foil Converter, Aug. 1989, pp. 160-164.
Kirchner, Richard F., "Roll Winding Techniques Key to Slitting Success", Paper, Film & Foil Converter, Sep. 1989, pp. 124-130.
Rienau, John R., "Look At Winding Continues", Paper, Film & Foil Converter, Nov. 1989, pp. 92-96.
Weiss, Herbert. "Rewinders", Technically Speaking, North American Publishing Company, 1983, pp. 91-94.
Weiss, Herbert, "Print Length Control", Technically Speaking, North American Publishing Company, 1983, pp. 86-90.
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Weiss, Herbert, "Lag-On Rollers Improve Quality", Package Printing, Sep. 1984, p. 54.

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