Planetary rolling construction or modular structured extruder for processing plastic material in e.g. food industry for manufacturing brush, has tooth ends exhibiting slant that is more steep than that of slant of flanks to gear diameter

摘要

The extruder has a side arm extruder part flanged at an extruder housing (5) of a planetary rolling extruder part or at an extruder housing of a planet rolling module. The side arm extruder part or an insert protrudes directly up to a tooth bottom of internal gears in a planet rolling extruder part or a planetary rolling module. A hole-sided tooth ends originated through a borehole is declined, and has a slant, which is more steep around 5 degrees than that of a slant of tooth flanks to pitch circle diameter of the gears. A curvature is formed at edges of the tooth ends.