Abstract: Provided is a mold configured to properly exhaust gas from a cavity and to prevent resin from entering into a vent hole, and a method for molding resin foamed molding using the mold. The mold (1) includes lower mold (2), upper mold (4), and core mold (3). The core mold (3) is provided at wall portions (3b), (3c) thereof with respective vent holes (6). Annexed members (7) are detachably attached to the outer surface sides of wall portions (3b), (3c). Each of the annexed members (7) has a tubular shape having an air passage in communication with the vent hole, and a sectional dimension smaller than that of vent hole (6). A nonwoven cloth (10) is attached to core mold (3) so as to cover each surface thereof facing the cavity, and cover wall portions (3b), (3c), thereby covering vent hole (6) from the cavity side.

Abstract: Provided is a mold which can be configured to be able to properly exhaust gas from a cavity and to prevent resin from entering into a vent hole, and a method for molding resin foamed molding using the mold. The mold 1 includes a lower mold 2, an upper mold 4, and a core mold 3 mounted directly under the upper mold 4. The core mold 3 is provided at wall portions 3b, 3c thereof with respective vent holes 6. Annexed members 7 are detachably attached to the outer surface sides of the wall portions 3b, 3c. Each of the annexed members 7 has a tubular shape having an air passage with a shape of a small passage which is in communication with the vent hole, and the sectional dimension of the passage of at least a part of the air passage is smaller than that of the vent hole 6. A nonwoven cloth 10 is attached to the core mold 3 so as to cover each surface thereof facing the cavity. The end portions of the nonwoven cloth 10 also cover the wall portions 3b, 3c, thereby covering the vent hole 6 from the cavity side.