The feed section of a single-worm extruder includes a body with a cavity for placing a worm in it, a transverse slot for feeding feedstock into the body cavity, and a feedstock hopper mounted above the transverse slot, as well as a rotatable rake located in the hopper, the teeth of which are sequentially engaged with the worm's ridge. The rake is made in the form of an endless belt that covers at least two freely rotating pulleys.