Patent ID: 7794223

Claim:
A tri-plate injection die with a changeable male and a changeable female die core comprising: a movable-side die plate, having on one side of it a male die core and on other side of it a movable-side mounting plate fixedly connected therewith; a fixed-side die plate, having on one side of it a female die core; a fixed-side mounting plate, provided on one side of it with a plurality of supporting rails to extend through said fixed-side die plate, said movable-side die plate and said movable-side mounting plate; and a casting-channel die releasing plate arranged between said fixed-side mounting plate and said fixed-side die plate; said tri-plate injection die is characterized by: said fixed-side die plate has at its center a receiving space, said receiving space of said fixed-side die plate is provided at its two mutually opposite sides with a changeable casting channel die core and said female die core; said movable-side die plate has in its center a receiving space, said receiving space of said movable-side die plate is provided at its two mutually opposite sides with said male die core and a supporting plate, said supporting plate is connected at the outer side thereof with an inner and an outer pushing out plate mutually neighboring with each other; said movable-side mounting plate is provided at one side of which with two mutually parallelly spaced blocks having in their middle an upper and a lower supporting stub, said inner and said outer pushing out plates are placed between said upper and said lower supporting stubs, in order that two mutually opposite edges of said supporting plate are abutted on said spaced blocks respectively.