PURPOSE:To enable displacement and turnover of a pouring trough by connecting a spring feeder body with a driving means through a flexible shaft. CONSTITUTION:Molten metal is supplied into a metallic mold through the pouring trough 20 and also granular material of dry coating material, etc., contained in a storing tank 6 is supplied at tip position of the pouring trough 20. According to rotation of a spring, the dry coating material flowing down in the spring feeder body 1 from the storing tank 6 is carried to the tip part of the pouring trough 20 through a carrying pipe 2 in order. Then, even if the driving motor 15 is set at apart from side part of the pouring trough 20, the power transmission from this driving motor 15 to a rotating shaft is smoothly executed with a flexible shaft 8. By this method, the displacement and turnover of the pouring through 20 can be executed and the granular material can be supplied through the spring feeder.