Either formation manner and the foaming resin molded article null mold and the male dies which use the formation die and the said forma formation for the foaming

摘要

PPROBLEM TO BE SOLVED: To manufacture at low costs a foamed resin molded product of a high grade and having a shape different only partially from a basic shape using a basic shaping mold and a piece. PSOLUTION: When the foamed resin molded product 1b having partially a concave sunken part is shaped using the basic shaping mold A, A piece for female die 51 having a pillar material 53 provided with an internal molding surface 55 having a swelled part to the inside is attached to the female die 10A. A piece for male die 62 having a concave sunken part 63 to the inside corresponding to the internal molding surface 55 of the piece for female die 51 is attached to the male die 20A. In mold-clamping, a parting surface Pv in a mold moving direction is formed with the outer periphery of the concave sunken part 63 and the internal molding surface 55 of the piece for female die 51. Since a parting surface Ph in a direction perpendicular to the moving direction of the mold is not formed, a foam molded product of a good quality which has no damaging on mold and no burr can be obtained. PCOPYRIGHT: (C)2010,JPO&INPIT