PRESS-MOLD FOR MOLDING ABRASIVE DISC WITH VULCANITE BINDER

摘要

FIELD: manufacture of polishing and grinding discs. SUBSTANCE: press-mold includes housing with mandrel inside it for supporting upper and lower molding plates; upper intermediate ring. Housing is detachable along symmetry axis and it is mounted with possibility of radial motion onto annular base having outer bead embracing lower molding plate. On lateral surfaces of each part of detachable housing rollers are rotatably mounted on axles at diametrically opposite sides along parting line. Gripping members are mounted on upper intermediate ring. Said members are in the form of forks embracing rollers when detachable housing is closed. EFFECT: prevention of molded disc exfoliation. 4 dwg