Roller device for dosing purposes

Abstract

The present invention relates to a roller device (100) for metering purposes in a metering arrangement for metering a pharmaceutical product, in particular a powdered product, wherein the roller device (100) comprises a metering roller (106), a drive device (132) for rotating the metering roller (106) about a rotary axis (108) and an adjustment device (180), wherein the metering roller (106) comprises: a shell (146) in which, at least at a first axial position (162), inlet openings (160) for the product are distributed circumferentially around the rotary axis (108); metering chambers (170) for receiving the product, wherein each metering chamber (170) is associated with an inlet opening (160) for feeding the product;and metering bodies (174) in the metering chambers (170), wherein a receiving volume (178) of the respective metering chamber (170) depends on a position of the respective metering body (174) in the metering chamber (170), wherein the position of the metering bodies (174) in the metering chamber (170) can be changed by means of the adjusting device (180), wherein the adjusting device (180) comprises adjusting elements (194) arranged on the metering roller (106), wherein at least a part of the metering bodies (174), and preferably all metering bodies (174), is assigned an adjusting element (194) at the first axial position (162), which couples to the metering body (174), and a controllable drive unit (182, 224), via which selectively only a certain adjusting element (194) is used for The position of the metering body (174) can be actuated at the first axial position, whereas the other adjusting elements (194) are not actuated by the drive unit (182, 224).

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