| 摘要 |
PROBLEM TO BE SOLVED: To reduce the molding material supplying unit cost per one molding machine and to be able to simply replace the type in multikind small quantity production by so controlling supply amounts that natural resin pellets and master batch pellet pneumatically transported in tubes reaches a predetermined mixing ratio. SOLUTION: A chute 12 set with a cyclone 10 for natural resin and a cyclone 11 for master batch to pipes 9 having smaller sectional area of an upper part than that of the lower part of the pipe is so mounted as to horizontally lower the raw material pellet surface from the raw material to a raw material charge port 8 of a molding machine, and a raw material level is controlled by level gages 13, 14. The natural resin and master batch are melted, mixed and consumed by the machine 1, and when the gage 14 outputs a lower limit alarm, a natural feeder 15 and a master batch feeder 16 so supply them as to reach a predetermined ratio while controlling the supply amounts.
|
