Blow molding method and apparatus

A blow molding apparatus in which a split mold is moved to a parison receiving position where a parison is supplied, is closed for performing blow molding at a blow molding position and is opened at a product discharging position for discharging a product, said apparatus comprising:

• trains of split molds provided opposed to each other across the parison receiving position;
• a first reciprocating section which sequentially reciprocates, in a direction y, each split in the trains of the split molds to and from a position opposed to the parison receiving position;
• a second reciprocating section which sequentially reciprocates each split mold of the trains of the split molds to and from the parison receiving position in a direction x crossing the direction y in the same vertical plane of movement of the first reciprocating section;
• and
• a reciprocating control section which controls the first reciprocating section and the second reciprocating section for performing blow molding by reciprocating each split mold to and from the parison receiving position and to and from the product discharging position.

A blow molding apparatus in which a split mold is moved to a parison receiving position where a parison is supplied, is closed for performing blow molding at a blow molding position and is opened at a product discharging position for discharging product, said apparatus comprising:

• trains of split molds provided opposed to each other across the parison receiving position;
• a first reciprocating section which sequentially reciprocates, each split in the trains of the split molds to and from a position opposed to the parison receiving position;
• a second reciprocating section which sequentially reciprocates each split mold of the trains of the split molds to and from the parison receiving position in a direction crossing the direction of movement of the first reciprocating section;
• and
• a reciprocating control section which controls the first reciprocating section and the second reciprocating section for performing blow molding by reciprocating each split mold to and from the parison receiving position and to and from the product discharging position, wherein the first reciprocating section and the second reciprocating section each comprise a moving table which is constructed in the form of a box made by welding plates.