Continuous compounding and mixing apparatus

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Now an exemplary embodiment of this invention will be described with reference to FIG.
4, in which: 1 is a mixer of this invention; 2 is a rotary agitator; 3 is a motor for the agitator; 4 is a level switch; 5 is a plastic hopper; 6 is a volumetric plastic measuring-feeding disk; 7 is a plastic feed inlet port; 8 is a digital signal generator for a plastic measuring-feeding apparatus; 9 is a motor for the plastic measuring-feeding apparatus; 10 is a pigment hopper; 11 is a volumetric pigment measuring-feeding disk; 12 is a pigment feed inlet port; 13 is a digital signal generator for a pigment measuring-feeding apparatus; 14 is a motor of the pigment measuring-feeding apparatus; 15 is a plastic processor; and 16 is a material inlet port of the plastic processor; 17 are pumps for sending a hot wind into a lower portion of the mixer; and 18 is a pump for exhausting the hot wind from an upper portion of the mixer.
If the plastic consumption quantity of processor 15 appears directly and quantitatively at the material inlet port 16 of the processor 15, as it typically does in injection, extrusion, and blow molding apparatus, then the mixer 1 of this invention can be mounted directly to the material inlet port 16 of the processor without requiring any hopper or delivery piping.
Plastic processor 15 shown in FIG.
4 is an injection molding machine the injection weight of which is 2.
5 kilograms, the injection cycle of which is 60 seconds, and the consumption per hour of which is 150 kilograms.
Mixer 1 is capable of continuously mixing the pellet or powder plastic supplied from plastic hopper 5 through plastic feed inlet port 7 with powder pigment supplied from pigment hopper 10 through pigment feed inlet port 12.
The 2-dot broken line in the upper portion of mixer 1 shows the material level.
Level switch 4 is of the ordinary type that generates on-off signals in a relatively narrow level variation range.
The plastic and the pigment are fed respectively by motors 9 and 14 which are placed in operation according to the low-level signal generated by the level switch 4