TREATMENT METHOD FOR STAMPING MOLDING DIE AND SKIN END SECTION

PURPOSE:To enhance productivity by providing an ejector pin projected from a male mold and pressing a molded product into a female mold, a force pin to press the end of a skin into the inside of the molded product and a heater to weld the end of the skin to the inner surface side of a core material. CONSTITUTION:A male mold 2 and a female mold 3 are opened after cutting a skin 9. At that time, an ejector pin 4 projecting from the male mold 2 presses a molded product 8 to the female mold 3 side and supports the same. When the male mold 2 is separated sufficiently from the molded product 8, a force pin 7 of the female mold 3 is actuated. The skin 9 is pressed into the inside of a core material 10 as the pin 7 moves forward, and an end 9A is pushed inwardly more than a back face 10A of the core material 10. Then, the pin 7 is moved backward and both molds 2 and 3 are closed. At that time, the end 9A of the skin 9 pressed into the inside of the core material 10 is folded along the rear face 10A of the core material 10 by the action of the male mold 2, and pinched between the back face 10A of the core material 10 and the male mold 2. Power is applied to the heater 5 of the male mold 2 in said state to heat the end 9A, which is welded and fixed to the rear face 10A of the core material 10.