Patent ID: 6860316

Claim:
A material melting device of metal injection molding machine comprising a main feeding cylinder; a plurality of preheating feed cylinders being parallel arranged at a lateral side of the main feeding cylinder of a metal injection molding machine; a plurality of material outlets being formed at a side of each preheating feed cylinder; the material outlets being communicated to the main feeding cylinder through the guide tubes; thereby, an inner side of the preheating feed cylinder being pre-heated to get preheated grains by adjusting the rotating speed of preheating screw rods in the preheating feed cylinders; wherein material drops into the main feeding cylinder from the material outlets to be as preheated grains; moreover, another material is directly supplied to the main feeding cylinder by adjusting the rotating speed of a preheating screw rod in the main feeding cylinder, and thus it is formed as a liquid material which are mixed with the preheating grains.