Smoothing apparatus with drive motor directly coupled to the smoothing roll
AssigneeReifenhauser GmbH & Co. Maschinenfabrik
InventorsHelmut Meyer, Joachim Lieven
Life of this patent
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Abstract
A smoothing roll for an apparatus for smoothing plastic foils and plates is driven directly by a rotor coaxially received with a stator in an outer housing with the rotor supported by a bearing on the outer housing or on a part of the housing extending coaxially into the rotor. The vibration-free arrangement eliminates chatter marks on the smoothed product.
Claims12
An apparatus for smoothing plastic foils and plates, comprising a smoothing roll and a smoothing roll drive for said smoothing roll, said smoothing roll drive including a drive motor having a drive housing, a stator and a rotor, the stator and rotor each being cylindrical and being disposed coaxially with one another in said housing, said rotor being connected directly to a drive shaft of said roll without an intervening transmission.
Dependencies are inferred from the claim text.