| 摘要 |
This indexing head for blow molding apparatus has a plurality of core rods projecting from each of the side faces of the head. A trigger bar is located in a recess of each side face in position to actuate simultaneously all of the valves in the core rods of the face in which the trigger bar is located. This effects blowing of parisons on the core rods when the core rods are at a blowing station. The head has improved and more reliable actuating mechanism for moving the trigger bar. Freely movable balls serve as motion-transmitting means for changing the direction of motion from a thrustor to the trigger bar by cam action of one ball against the other.
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