Machine for blow moulding containers from a parison using a continuously rotating turntable

• Main Authors: KWASNIEWSKI, WALDEMAR BOLESLAW, KOWALCZYK, ANDRZEJ TOMASZ
• Format: Patent
• Language: English; French; German
• Published: 19.09.2012
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A machine (10) for blow-molding containers from a parison (31). The machine comprises a turntable (12) continuously rotating about an axis of rotation (14) in an endless circle without stopping; a flow head (26) forming and providing the parison and being fixedly positioned at a first station of the machine proximate the turntable; a plurality of molds (16) carried by the turntable to position each of the molds adjacent the flow head in turn, each mold including mold portions which are movable between an open configuration to receive the parison from the flow head and a closed configuration to mold the parison; a plurality of blow pins (30) mounted on the turntable, at least one blow pin being positioned adjacent to each of the molds. The blow pins being engageable with the molds when in the closed configuration for injecting compressed gas into the molds to effect blow molding of the parison. Further the machine comprises paddles (142) gripping the blow-molded containers after the containers have been blow-molded from the parisons; a blow pin path (144) traveled by the blow pins while blow-molding the containers from the parisons; and a container path (146) traveled by the paddles while gripping the blow- molded containers, the container path positioned radially outward from, and further from the axis of rotation than, the blow pin path.