EXTRUDER Russian patent published in 2015 - IPC B02C15/16 A23N17/00 

FIELD: machine building.

SUBSTANCE: extruder contains casing in form of poles on the support plate, cylindrical work chamber with end lids. In the chamber the drive and driven elements with grinding teeth are installed, they create gear train with internal engagement. The driven element is made as hollow cylinder with windows, it is installed in bearings in casing and is equipped with internal engagement teeth. The drive element is made as gear shaft or pinion installed on shaft with external teeth, it is located in bottom part of the cylindrical work chamber, and is eccentrically installed in two bearings located on the support plate. On the external surface of the driven element a matrix with holes is installed, it is made as half-rings creating the work chamber. The extruder is additionally equipped with multi-stage system of feed stock heating and with system of temperature stabilization. The matrix is made with thickened twin walls of the its half-rings or segments, and is pressed with two sides by clamp rings connected with the half-rings or segments along the cone surfaces and equipped with device for their tensioning on half-rings.

EFFECT: invention increases the extruder reliability.

4 cl, 3 dwg