Press molding device and manufacturing method thereof

A method for manufacturing a press-molded article by pressing and molding a work piece that has been heated while clamping the work piece between a first die and a second die and cooling the work piece, the method comprising:

• pressing and molding the work piece with the first molding surface and the second molding surface and before a die portion and a trimming portion reach a bottom dead point, cutting an end portion of the work piece with a blade portion by moving the die portion and the trimming portion toward the first die and moving a blank holder along a side surface of a punch with the end portion of the work piece being clamped between a supporting surface of the blank holder and a clamping surface of the trimming portion, wherein
• the first die includes the punch that includes the first molding surface for molding the work piece and the blank holder that is movably arranged along the side surface that extends from the first molding surface of the punch and includes the supporting surface for supporting the end portion of the work piece;
• the second die includes the die portion including the second molding surface that faces the first molding surface and is used for molding the work piece and a fixed surface that extends to an outside from a tip portion of the second molding surface and faces the supporting surface of the blank holder, and the trimming portion that is configured integrally with the die portion;
• the trimming portion includes the blade portion for cutting the end portion of the work piece;
• the die portion includes a flow path for circulating a refrigerant to cool the work piece along the second molding surface;
• the trimming portion is configured integrally with the die portion by being fixed to a fixed surface;
• and
• the trimming portion includes the clamping surface that faces the supporting surface and clamps the end portion of the work piece with the supporting surface and further includes a protrusion where the clamping surface protrudes toward the blank holder side than the blade portion.