Importance

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Abstract

In accordance with the present invention, there is provided an injection stretching blow molding machine comprising a base secured onto a machine bed, a top plate positioned above said base and connected to said base by means of a plurality of tie rods in the peripheral edge, a movable plate slidably inserted through said tie rod and disposed movably up and down between the base and the top plate, a clamping plate above the movable plate, a transfer plate at the undersurface of said movable plate and rotable at predetermined intervals by a drive device provided in the central portion above the movable plate, the required number of hold molds consisting of split molds mounted on the undersurface of the transfer plate, said hold molds being opened and closed in a radial direction, an injection cavity and a blow cavity on the base closed in connection with said hold molds, an injection core and a blow core mounted at the lower side of said clamping plate and closed in connection with the hold molds from openings bored in the movable plate and the transfer plate, a stretching rod operating device and a releasing device provided above the clamping plate, and a clamping device provided above said top plate, said clamping device corresponding to the injection cavity, wherein a clamping rod of the clamping device and the clamping plate are connected, and a returning device is provided over the movable plate and the base or the tie rods.

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First Claim