HOT-CHANNEL BLOCK OF THE MULTI-IMPRESSION CASTING MOLD FOR THERMOPLASTS Russian patent published in 1995 - IPC

FIELD: foundry. SUBSTANCE: hot-channel block of the casting mold has a housing with nozzles going into the pouring pits of the half-matrix plate. Heated channels and holes are made in the housing. Pistons are placed in the holes. One face of each piston contacts with the immovable plate, the other one is located in the heated channel of the housing. The springs for detaching the housing from the half-matrix plate are mounted from the side of the immovable plate. The use of the pair pistons - heated channels ensures the discharging of the displacement assembly of the injection cylinder. EFFECT: increased number of cradles in the mold. 1 cl, 4 dwg