I own a plastic filament extruder,

I own a plastic filament extruder, but will be stuck into the rear axle particles, can not continue to turn. How can I do?

Not sure if I understand, but if you mean that the extruder gear is clogged with plastic, then pull the filament or and blow the particles out with canned air our just blew really hard on it. Usually this is a symptom of either a nozzle obstruction or incorrect temperature