An instrument panel manufacturing system including a press forming device for the unit sheet and the core member having a feeding device and a heating device therefor.The feeding device (2) is provided with a suction device (20) for the unit sheet which is movable up and down, and the running rails (14) for the conveying bogie (21) are arranged between the sheet mounting position for the bogie and the conveying position so as to be movable up and down. The heating unit (3) is provided with lower rails (47) and upper rails (46) and includes a heater (48), and further a drying and melting device (101) having a drying chamber (102) and a melting chamber for the adhesive (65a) coated on the surface of the core member (65) is integrally arranged with the heating device (3). The forming device is provided with auxiliary rams (59) which are moved up and down separately from the lower die (55) and support the bogie running rails (61), the lower die (66) can be moved along the rails (223, 233) on the base block (49, 219) and an item expelling block (68, 232), and further the item expelling block (68, 232) can be inclined.