A press casting die being adapted to changing its male and female die cores, said press casting die comprises:
- a die seat at a stationary side having a stationary-side fixed plate having a female-die recess located on an inner side thereof and a female die core located in the female-die recess and being changeable;
- and
- a die seat at a movable side having a movable-side fixed plate having a male-die recess located on an inner side thereof and a male die core located in the male-die recess, said male-die core being changeable, said movable-side fixed plate having a plate receiving recess located on a side opposite said male-die recess, said plate receiving recess communicating with said male-die recess, said plate receiving recess has a plate recess area larger than a male-die recess area of said male-die recess, a pressure bearing plate being changeable and located in said plate receiving recess, said pressure bearing plate having a plurality of holes for insertion of pushing-out pins;
- said pressure bearing plate has four corners, each corner of the four corners has an outer screw and an inner screw;
- each said outer screw of the four corners selectively locking said pressure bearing plate in said plate receiving recess of said movable-side fixed plate, said inner screws selectively locking said male die core in said male-die recess of said movable-side fixed plate;
- a top plate set having an inner top plate and an outer top plate, said top plate set having a width that is smaller than a width of said pressure bearing plate and a height that is larger than a height of said pressure bearing plate, and said top plate set is provided behind said pressure bearing plate, wherein said outer top plate is provided with a plurality of pushing-out pins corresponding with said plurality of holes of said pressure bearing plate respectively;
- and
- a pair of die-foot blocks located on opposing sides of said top plate set and providing supporting forces for said pressure bearing plate when in injection;
- wherein, said die seat at said movable side is displaced to move towards said die seat at said stationary side, then alloy is injected into a die cavity between said female and said male die cores to form an article;
- after that, said die seat at said movable side is displaced to move away from said die seat at said stationary side to release said die;
- said article then gets released by said pressure bearing plate by action of said pushing-out pins pushed by said top plate set and is pushed out of said male die core;
- wherein said male die core of said die seat at said movable side, said pressure bearing plate and said female die core in said die seat at said stationary side are all adapted to being detached for changing.