Molding device

Details Molding device Molding device

2006-03-14

2006-03-14

Stoner, Kiley S. (Department: 1725)

Metal founding

Means to shape metallic material

Pressure shaping means

C164S319000, C164S306000, C164S254000, C164S155200

Reexamination Certificate

active

07011137

ABSTRACT:
The molding device comprises a lower mold unit and an upper mold unit. When the upper mold unit approaches the lower mold unit, a molding cavity is defined between the lower and upper mold units. The lower mold unit has a storing chamber that is communicated with the molding cavity. The lower mold unit comprises a pressure-decreasing mechanism and a pushing mechanism. A molten material is stored in the storing chamber. When the molding cavity is formed between the lower mold unit and the upper mold unit, the pressure-decreasing mechanism decreases pressure in the molding cavity. Afterwards, in sync with the operation that the upper mold unit pushing down a lower mold-holding member of the lower mold unit, an injection rod of the pushing mechanism pushes out the molten material in the storing chamber to the molding cavity. As a result, the efficiency of the molding operation is improved.

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