Injection molding or press molding machine for plastics has replaceable ejector plate packet attached to base ejector plate packet by bolt with flange which cooperate with curved recess at base of cross-bar in slot in base packet

摘要

Injection molding or press molding machine comprises a molding plate with a central cavity and removable molding inserts, a replaceable ejector plate packet opposite this connected to a base ejector plate packet. The ejector plate packet is bolted to the base ejector plate packet using a flanged bolt which fits into a bore and cooperates with a curved recess at the base of a cross-bar . The injection molding or press molding machine for plastics or other malleable materials has a molding plate (15) in the form of a frame with central cavity (14). A removable molding insert (13) fits into the cavity in this. A replaceable ejector plate packet (W) opposite this is connected to a base ejector plate packet (S) and can slide along guide bolts (22, 23) into the cavity in the mold plate cavity. The replaceable ejector plate packet is attached to the base ejector plate packet by a bolt (30) which fits into a bore (34) in the base packet and has a flange which cooperates with a curved recess at the base of a cross-bar (41) fitted into a slot in the base packet.