Manufacturing apparatus for manufacturing different color pellets

A manufacturing apparatus, for manufacturing different color pellets, comprising:

• a screw extruder;
• a passage change-over means;
• an inlet passage communicating with a discharge port of said screw extruder;
• a first outlet passage and a second outlet passage branching on sides of the forward end of said inlet passage;
• a first spool for making said inlet passage communicate with only one of said first outlet passage, said second outlet passage, and the outside of said apparatus;
• a first granulating unit for molding pellets out of molten resin of a first color discharged from said discharge port connected to said first outlet passage through a first discharge change-over valve;
• a second granulating unit for molding pellets out of molten resin of a second color discharged from said discharge port connected to said second outlet passage through a second discharge change-over valve;
• a second spool provided with said first discharge change-over valve, said second spool being movable to a first position for communicating said first outlet passage with said first granulating unit, and being movable to a second position for blocking said first outlet passage from said first granulating unit while making said first outlet passage open to the outside of said apparatus;
• and
• a third spool provided with said second discharge change-over valve, said third spool being movable to a first position for communicating said second outlet passage with said second granulating unit, and movable to a second position for blocking said second outlet passage from said second granulating unit while making said second outlet passage open to the outside of said apparatus.