Patent ID: 6936206

Claim:
A synthetic resin molding mold comprising a mold base ( 1 ), a cavity block ( 2 ) having a cavity ( 3 ) provided within the mold base ( 1 ), a heat insulating layer ( 5 ) provided between the mold base ( 1 ) and the cavity block ( 2 ), which is defined by a recess formed on a surface of the cavity block ( 2 ), and a channel (A) provided near a cavity surface ( 4 ) through which a heating medium and a cooling medium are alternately and repeatedly supplied, wherein a space (t 1 ) is provided at a contact portion between the mold base ( 1 ) and the cavity block ( 2 ) including the heat insulating layer ( 5 ) based on the anticipation of a thermal expansion of the cavity block ( 2 ).