CASTING MOLD FOR MANUFACTURE OF POLYMERIC PRODUCTS Russian patent published in 1994 - IPC

FIELD: injection molding. SUBSTANCE: casting mold has fixed half-mold 1 and movable half-mold 3, guide columns, and extensible half-dies 10, 11. Extensible half-die shifting mechanism is made in the form of movable disk 5 with stop fastened in movable half-mold for rotation relative to central axis of mold, rope 17 and spring-loaded rod engageable with it and positioned in fixed half-mold. The rod has nut 23 used for adjustment of opening of extensible half-dies. Fixed half-mold is provided with adjustment bolt for fixation of position of disk and engagement with stop. Movable half-dies are provided with pins positioned in parallel with central axis of mold. Movable half-mold has spiral grooves for engagement with butt ends of pins, and movable disk has radial cuts 13 to receive the pins. The rod has ring-shaped platform for limitation of motion of the nut. EFFECT: enhanced operating capabilities. 3 dwg