Extruder feeding assembly and extruder apparatus incorporating it
AssigneeColmec S.p.A.
InventorMarco COLOMBO
Life of this patent
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Abstract
Disclosed is an extruding apparatus and relative feeding assembly, including hopper unit in correspondence of an extruder-feeding area, wherein an extrusion screw having a first rotation axis and a drive roller having a second rotation axis are arranged at a distance each other so that a gap for raw material feeding is defined between the screw and the drive roller, wherein the drive roller has a substantially conical surface with respect to its own rotation axis, the conical surface having a taper vertex facing toward a progression direction of the extrusion screw.
Claims8
Feeding assembly of an extruder, comprising hopper means in correspondence of an extruder-feeding area, wherein an extrusion screw (10) having a first rotation axis (X-X′) and a drive roller (20) having a second rotation axis (Y-Y′) are arranged at a distance each other so that a gap for raw material feeding is defined between a flight envelope of said screw (10) and said drive roller (20), characterised in that
- said drive roller (20) has a substantially smooth conical surface with respect to its own rotation axis (Y-Y′), said conical surface having a taper vertex facing toward a progression direction of said extrusion screw (10).
Dependencies are inferred from the claim text.