COMPRESSION MOLD FOR PRESSURE DIE-CASTING WITH UNDERCUT Russian patent published in 1995 - IPC

FIELD: pressure die-casting. SUBSTANCE: first, compression mold is open along parting at the expense of force developed by a spring. Die is moved along sleeve 5 and turned at the expense of shaped slot of the sleeve that interacts with stopper 8 of the die. Insertion pieces 6 installed in the sleeve comes our of casting undercut. Compression mold is open along main partition. Then plate 24 of push rods id driven to move. The plate is moved towards another plate 19 of push rods using push rods return mechanism 21. The die is moved by rods 20 of plate 19. Sleeve is turned together with insertion pieces located in it at the expense of interaction of sleeve shaped slot and stopper installed in the die. EFFECT: high quality of casting. 6 dwg