A gating structure for a casting with a small hole

Abstract

The utility model relates to a kind of casting pouring structure with small hole, including the upper box and lower box of being connected, mud core assembly and pouring structure are equipped in upper box and lower box, and the casting cavity between upper box casting cavity, lower box casting cavity, mud core assembly is casting cavity, and pouring structure communicates casting cavity;Pouring structure includes air outlet and sequentially communicated straight sprue, cross gate, inner gate, straight sprue upper end communicates sprue cup, and inner gate communicates casting cavity bottom, and casting cavity top communicates air outlet;Mud core assembly includes the casting mud core and the mould release mud core of symmetrical arrangement, small hole core bracing component is installed on casting mud core, small hole core bracing component includes the core head and small hole core bracing rod of being connected, and small hole core bracing rod other end is connected with casting mud core;Small hole core bracing rod middle is small hole core bracing part.The utility model effectively solves the problem that the shape of casting is affected by the fracture of sand core in weak wall thickness due to low strength.

Images