Mould sand filling control - monitors level of sand in filled mould to adjust volume of sand fed to the next mould

摘要

The dosing system, with an automatic control to fill moulds with a given volume of casting sand, has sensors (9,11) to monitor the surplus sand on the back of the finished mould (15) on the conveyor after filling. According to the readings of the sensors (9,11), the amt. of sand delivered to the next mould (15) is increased, decreased, or unchanged. Pref. the sensors (9,11) swing on a suspension mounting to monitor the back (2) of the mould, placed at different gaps from the mould box (15). The sensors (9,11) are pref. as bars, with initiators (10,11) to deliver electrical signals when operated by the bars (9,11). Light boxes, at different gaps from the mould box (15), monitor the backs (2) of the moulds. ADVANTAGE - The mould filling operation can be set according to the size and type of mould, and other parameters, so that the filling is controlled with min. loss of casting sand.