Device for powdering printing sheets
AssigneeWeitmann & Konrad GmbH & Co. KG
InventorReiner Haas
Life of this patent
Estimating the term…
Abstract
A method and device for powdering the printed sheets of paper. Powder is periodically introduced into the airflow by a dosing element.
Claims12
A device for carrying out powdering printing sheets, with a supply container for the powder and a metering element that is connected in series with the supply container the metering element opening up into a mixing area where an air current ejects the powder, the metering element being driven in a cyclical fashion so that a timing of powder being introduced into the mixing area corresponds to the presence of a printing sheet, the metering element containing a rotationally symmetrical body with a horizontally arranged rotational axle, a step motor being provided as the drive for thy metering element, further comprising the metering element being cantilevered;
- and
- a cantilevered roller housing defining a bore, the metering element arranged in the bore.
A device for carrying out powdering printing sheets, with a supply container for the powder and a metering element that is connected in series with the supply container the metering element opening up into a mixing area where an air current ejects the powder, the metering element being driven in a cyclical fashion so that a timing of powder being introduced into the mixing area corresponds to the presence of a printing sheet, the metering element containing a rotationally symmetrical body with a horizontally arranged rotational axle, a step motor being provided as the drive for the metering element, further comprising the metering element being cantilevered, the metering element being arranged in a corresponding bore of a roller housing, the roller housing containing an outlet opening that is offset relative to an inlet opening by more than 180° and less than 270° viewed in a rotating direction, and the roller housing being cantilevered and supporting supply container.
Dependencies are inferred from the claim text.