Vertical die casting machine

Details Vertical die casting machine Vertical die casting machine

B - Operations, Transporting

22

D

22/67

B22D 17/12 (2006.01) B22D 17/20 (2006.01)

Patent

CA 1281168

VERTICAL DIE CASTING MACHINE ABSTRACT OF THE DISCLOSURE A vertical die casting machine of a vertically clamping type provided with a hydraulic piston-cylinder to actuate movable parting plates disposed between an injection sleeve and a stationary mold for constricting a melt passage including a runner hole formed in the stationary mold and a hollow end portion of the sleeve by an axial through-hole formed by the parting plates in a clamped state. The parting plates enable to prevent a semi-solidified part of the melt "shell" formed in the sleeve before an injection operation from intruding into a mold cavity with the other hot melt part. With a narrow runner hole having a diameter smaller than that of the sleeve, the parting plates are actuated to move in a clamped state in a direction to thereby shear a cold melt runner so that a molded product is allowed to move upward from the stationary mold with the runner separated from a cold melt bisket formed in the sleeve, but integral with the product. With an enlarged runner hole having a diameter not less than that of the sleeve, the parting plates are actuated to separate from each other to thereby allow the bisket integral with the runner to move upward from the stationary mold through the enlarged runner hole with the mold product integral with the runner.

530813

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