Core making machine for making hollow core

摘要

A core making machine for making a hollow core from green sand, capable of automatically performing a series of core making operation which has the steps of blowing the green sand into a horizontally split type die means from an opening formed in one side of the die means together with air to fill the die cavity, forcibly stabbing the green sand in the die cavity by a stabbing rod to compact and harden the green sand and extracting the rod thereby to form a hollow core, and taking out the thus made core from the die means after it has been splited.