Pelletizer
AssigneeMaag Germany GmbH
InventorsDominik Buchholz, Michael Eloo, Patrick Sladky, Jürgen Veltel
Life of this patent
Estimating the term…
Abstract
A pelletizer with a rotatably drivable cutter head for dividing material strands output from a die plate into pellets, the cutter head being drivingly connected to a drive motor via a drive shaft, and with a feed device for axial adjustment of the cutter head relative to the die plate in the direction of the cutter head axis of rotation. A spindle element of a spindle drive stage of the feed device is configured as a spindle sleeve which is axially firmly seated on the rotating drive shaft between the drive motor and the cutter head. The drive shaft is connected to the cutter head in an axially-fixed and rotationally-fixed manner and transmits the axial movement of the spindle sleeve to the cutter head.
Claims25
A pelletizer with comprising:
- a rotatably drivable cutter head drivingly connected to a drive motor via a drive shaft;
- a feed device for axial adjustment of the cutter head relative to a die plate in a direction of a cutter head axis of rotation, the feed device comprising:
- a spindle drive stage comprising a tube nut and a spindle element operatively connected to the tubular nut in a geared manner;
- a servomotor;
- and
- a gear stage between the servomotor and the tube nut;
- wherein the tube nut is rotatably adjustable by the servomotor via the gear stage, so that the spindle element, is axially adjustable
- wherein the spindle element is configured as a spindle sleeve, which is mounted onto the rotating drive shaft in an axially-fixed manner between the drive motor and the cutter head;
- and
- wherein the drive shaft:
- is connected to the cutter head in an axially-fixed and rotationally-fixed manner;
- and
- transmits the axial movement of the spindle sleeve to the cutter head.
Dependencies are inferred from the claim text.