PELLETIZING DEVICE WITH A CUTTING ROTOR
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United States of America Patent
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Issued Date -
Jul 23, 2015
app pub date -
Jan 17, 2014
filing date -
Jan 17, 2014
priority date (Note) -
Published
status (Latency Note)
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Abstract
The invention refers to a pelletizing device for cutting plastic strands into pellets having a cutting rotor (20) which is rotated by a drive system (22), and cutting blades (24) distributed over a circumference (26) of the cutting rotor (20) having cutting edges (78), root areas (44) of which cutting blades (24) are arranged in grooves (34) in the rotor body (20), each cutting blade (24) having a recess (46) parallel to the cutting edge (78), which recesses (46) are covered by one of the grooves (34) to receive and interact with one clamping device (48) being held in an opposite recess (42) in the rotor body (20), wherein each clamping device (48) comprises a radially extendable clamping sleeve (50) and a spreading device (58, 64, 70) to widen the clamping sleeve (50) at least radially with respect to the clamping sleeve (50). The invention is characterized in that only one clamping sleeve (50) per each cutting blade (24) is provided in the groove (34),
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