Injection device for low melting point metallic material

Abstract

The purpose of this invention is to prevent sludge from flowing into a measuring chamber by partitioning the inside of a melt cylinder into a melt stirring part and a molten metal flow passage part, and to stabilize supply of the metallic material and measurement of the molten metal. A nozzle member of which the inside of the rear part is formed into a measuring chamber is attached to the tip of a melt cylinder . The end face of the opening periphery of the measuring chamber of the nozzle member faced to the inside of the melt cylinder is projectingly formed into a ring-shaped bearing . A hollow stirring shaft provided with stirring blades on the outer periphery is supported by the bearing and a bearing member in the rear end of the melt cylinder so as to be freely rotatable with a suction port bored in the side wall of the tip part. An injection rod is put into the stirring shaft and a plunger with a ring valve on the tip is fitted into the measuring chamber so as to be freely movable forwards and backwards. The inside of the melt cylinder is partitioned into a melt stirring part A and a molten metal reservoir B by the stirring shaft . The meting cylinder is installed slantwise on the machine base with the nozzle member side downward to use the tip part as a sludge receiver