Automatic molten metal injector

Details Automatic molten metal injector Automatic molten metal injector

B - Operations, Transporting

22

D

B22D 37/00 (2006.01) B22D 17/28 (2006.01) B22D 17/30 (2006.01) B22D 39/02 (2006.01) F27D 3/14 (2006.01)

Patent

CA 2300763

An automatic molten metal injector is provided which has no rotary fractional parts and is thus durable. The injector has a furnace holding a molten resin to a predetermined level and having a first port. A fixed sleeve is provided in the furnace so as to be submerged in the molten resin and having a second port communicating with the first port. A slide sleeve having a side wall formed with a third port and a closed bottom wall is received in the fixed sleeve so as to be vertically slidable between a raised position in which the third port communicates with the second port, and a lowered position in which the third port communicates with the interior of the furnace. A piston is vertically slidably received in the slide sleeve. A drive unit individually or simultaneously raises and lowers the slide sleeve and the piston.

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