Molten metal molding machine

Abstract

A molten metal molding machine is provided with a heating cylinder, a linear motion member for successively feeding preheated metal rods into the heating cylinder from its rear end to successively push the metal rods toward a forward end of the heating cylinder, and a heater arranged on the heating cylinder such that the metal rods are gradually molten as they move through the heating cylinder from its rear end toward its forward end. The heating cylinder, the metal rods and a cylindrical forward end portion of the linear motion member are dimensioned such that a predetermined clearance is provided between an inner circumference of the heating cylinder and an outer circumference of each of the metal rods, the cylindrical forward end portion can enter the heating cylinder, and an outer circumference of the cylindrical forward end portion is slidable relative to the inner circumference of the heating cylinder. A preheated new metal rod of a same kind as the metal rods can, therefore, be fully pushed into the heating cylinder irrespective of a fill volume into a mold.

Description

technical field [0001] The present invention relates to a molten metal molding device that injects and fills molten metal (molten metal solution) into a mold cavity, and more particularly relates to a molten metal molding device equipped with a metal melting mechanism that melts metal materials in a heating cylinder. Background technique [0002] As a molten metal molding device that injects and fills molten metal material into the cavity of a mold to obtain a product, there is known a cold chamber die casting machine that is equipped with melting of molten metal materials (such as Al alloys, Mg alloys, etc.) Furnace (crucible), the metal material melted by the melting furnace is measured and pumped up with the amount of each shot as a barrel, and the molten metal (molten metal solution) drawn up is injected into the injection cylinder, and it is passed through the injection push rod The high-speed forward movement injects and fills into the cavity of the mold. In this cold...

AI Technical Summary

Problems solved by technology

However, if the oxide film peeling part composed of a mold is provided on the rear end side of the heating cylinder as described above, (1) the press-in speed of the cylindrical metal material into the heating cylinder cannot be increased, and (2) the oxide film peeling part cannot be increased. (3) In order to prevent the front end cylindrical part of the direct moving body that can be pressed into the heating cylinder from being cut by the oxide film peeling part, the outer circumference of the front cylindrical part of the direct moving body and the inner surface of the heating cylinder There is a gap between the circumferences, so it becomes a device that has the following problem, that is, the rear end side of the heating cylinder cannot be sealed from the outside air by the front cylindrical part of the linear motion body.

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