A molding module 2 includes: a mold 11 including a lower mold 10 and an upper mold 7 facing each other; a cavity 12 provided in the lower mold; a bottom member 9 forming the inner bottom surface 14 of the cavity; a circumferential member 8 forming the inner circumferential surface 13 of the cavity; a mold-driving mechanism for opening and closing the mold 11; a lower base 3; a support member 4 vertically provided on the lower base; an upper base 5 provided in the upper portion of the support member; and an elevating platen 6 mounted on the middle portion of the support member in a vertically moveable manner. Motors 16 and 23 included in the mold-driving mechanism are respectively attached to the lower base and the elevating platen. The upper mold is attached to the upper base. The circumferential member is connected to the elevating platen. The bottom member is connected to the motor 23. The circumferential member is driven vertically by the elevating platen which is driven vertically by the motor 16. The bottom member is driven vertically by the motor 23.