Safe door mechanism of mold injection machine

The utility model relates to a safe door mechanism of a mold injection machine, which comprises a mobile template and a mobile door, wherein the mobile template is provided with a movable limit block; the mobile door is provided with a limit block; the movable limit block comprises a fixing plate, a rotating plate and a travel switch; the rotating plate is fixed on the fixing plate through a shaft; the travel switch is arranged on the rotating plate arranged on the fixing plate, can rotate to the contact position on the vertical position, and also can control the action of the motor. The utility model has the advantages that the status of normal operation and maintenance of the mold injection machine can be conveniently and safely switched through the actions of the movable limit plate, so as to avoid the trivial details of the removal and installation of the limit block on the mobile template in the prior art, as well as improve the security during the maintenance process.