Harro Hoefliger Verpackungsmaschinen Gmbh

Harro Hofliger Verpackungsmaschinen Gmbh

Eissmann Automotive Deutschland Gmbh

Achim Wolf

Andreas Thienst

Martin Lober

Udo Egelkraut

Karlheinz Seyfang

Uwe Blum

Stefan Wolf

Peter Schroeppel

Fritz Major

The disclosure relates to a metering apparatus for free-flowing material and to a method for operating such a metering apparatus. The metering apparatus has a metering duct having a closed cross section and further has a rotary drive (M). The metering duct is wound in the form of a screw with a vertical longitudinal axis. The free-flowing material is fed to the metering duct. The metering duct is set via the rotary drive (M) in an oscillating rotary motion about its longitudinal axis with individual rotary strokes, wherein, with each rotary stroke, a partial quantity of the free-flowing material falls out of a lower discharge opening of the metering duct.

Metering apparatus and method for operating a metering apparatus

A pellet column is formed in a metering duct. The lowermost pellet is located in a connection point where an outlet duct is connected to the metering duct and leads transversely away therefrom. A first duct, which opens into the metering duct via a first duct mouth above the connection point, is impinged with negative pressure, wherein a pellet is suctioned onto the first duct mouth and is fixed thereto. This pellet acts as a block for the pellets thereabove. A second duct, which opens into the connection point via a second duct mouth, is impinged with positive pressure, wherein the pellet at the connection point is pneumatically ejected via the outlet duct and supplied to a container. After the ejection of the lowermost pellet, the negative pressure in the first duct is switched off such that the pellet held at the first duct mouth advances toward the connection point.

Method and device for separating and transferring pellets

A metering device for the volumetric metering of powder, including pharmaceutical powder, and the simultaneous metering and filling of target cavities with metered powder, as well as a metering system and an associated method are shown. One embodiment of the metering device includes a metering station with a powder storage container, a filling station, and a movable metering member. The metering member has a flat transfer surface that includes metering cavities, which correspond in number and geometry to target cavities arranged in the filling station, and also to metering openings in the metering station. The metering cavities each have an open end and a base, wherein an air-permeable filter element forms at least a part of the base of each. The metering member includes a central pressure channel connected to the metering cavities through the filter elements for applying a negative or positive pressure to the metering cavities.

Metering device for powder and method for metering powder

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Allmersbach im Tal, Germany

Achim Wolf