Rotary blow molding machine and method

Details Rotary blow molding machine and method Rotary blow molding machine and method

B - Operations, Transporting

29

C

B29C 49/36 (2006.01) B29C 33/30 (2006.01) B29C 49/56 (2006.01) B29C 33/00 (2006.01) B29C 33/36 (2006.01) B29C 49/04 (2006.01)

Patent

CA 2199586

A rotary blow molding machine includes a horizontal main shaft with a plurality of molds spaced around the shaft and mounted on the shaft by linear bearings for movement along the shaft. A shaft drive rotates the shaft and molds around the axis of the shaft in the steps and dwells the shaft and molds between steps. Open molds are rotated from a lower container eject position up to a parison capture position and then close on a parison. The closed molds are shifted axially along the main shaft and the parison is blown. Further rotation of the shaft returns the molds to the mold eject position where the molds open and molded containers are ejected downwardly with gravity assist.

Cette invention concerne une machine de soufflage rotative comprenant un arbre principal horizontal portant sur son pourtour une série de moules montés sur paliers linéaires pour leur déplacement le long de l'arbre. L'arbre entraîne les moules dans mouvement de rotation intermittent pour amener les moules d'une position basse d'éjection des produits moulés à une position de capture de paraisons où lesdits moules se referment sur ceux-ci. Les moules fermés sont déplacés le long de l'arbre pour le soufflage des paraisons, puis ramenés par rotation subséquente de l'arbre à la position d'éjection où ils s'ouvrent pour laisser tomber le produit moulé.

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