Apparatus for plasticizing and extruding plastic material
AssigneeHermann Berstorff Maschinenbau GmbH
InventorWilhelm Brand
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Abstract
Multi-stage apparatus for plasticizing and extruding plastic material comprising a first extruder having a first screw, a planetary roller unit and a second extruder having a second screw, the second screw receiving its drive from the first screw via the planetary roller whereby a speed increase or reduction is obtainable between the two extruder screws depending upon the particular arrangement and tooth ratio of the planetary roller unit.
Claims6
Multi-stage apparatus for plasticising and extruding plastic materials comprising a first stage and a second stage, a respective rotatable working member for each of said stages, a planetary roller unit having a main spindle and a plurality of planetary spindles, said planetary roller unit being included in said first stage and so drivingly connected to said rotatable working member of said first stage and said rotatable working member of said second stage, that there is an increase or a reduction in the speed of rotation between said rotatable working member of said first stage and said rotatable working member of said second stage, dependent on the tooth ratio of said planetary roller unit.
Dependencies are inferred from the claim text.