Oscillating hauloff with bearings along central axis

Details Oscillating hauloff with bearings along central axis Oscillating hauloff with bearings along central axis

B - Operations, Transporting

29

C

B29C 47/00 (2006.01) B29C 53/10 (2006.01)

Patent

CA 2678930

An oscillating hauloff for blown film has a Bearing structure positioned along the vertical process centerline. The bearing structure is separated into upper and lower sections to maintain a clear and open pathway for the web to pass across the process centerline. Passing the web across the process centerline allows the web to change directions before passing over a second turning bar (34), thus canceling any web wandering introduced by a first turning bar (28).

L'invention concerne un dévidage oscillant pour feuille soufflée ayant une structure d'appui se trouvant le long de l'axe de processus vertical. La structure d'appui est séparée en une section supérieure et une section inférieure pour maintenir une voie de passage dégagée et ouverte pour que la feuille sans fin passe au niveau de l'axe de processus. Le passage de la feuille sans fin au niveau de l'axe du processus permet à la feuille sans fin de changer de direction avant de passer sur une deuxième barre de retournement, annulant ainsi tout déport de la feuille sans fin introduit par une première barre de retournement.

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