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US 7,878,784 B2Granted
Injection molding machine
AssigneeSiemens Aktiengesellschaft
InventorsUlrich Eckel, Klaus Georg, Gerhard Matscheko, Georg Pengler
Life of this patent
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Abstract
An injection molding machine is provided. Permanent magnets are attached to a planetary roller spindle and/or ball screw spindle or to the spindle nut of the injection molding machine. Thus, the permanent magnets are integrated into the planetary roller spindle and/or ball screw spindle or to the spindle nut of the injection molding machine.
Claims3
An injection molding machine, comprising:
- a screw;
- a planetary nut with an opening to receive the spindle;
- a rotor with an opening to receive the screw;
- a plurality of permanent magnets, at least one permanent magnet directly attached to an outer circumference of the planetary nut and at least one permanent magnet directly attached to an outer circumference of the rotor, said rotor and planetary nut being separated by a gap.
1 more element
Dependencies are inferred from the claim text.