Patent ID: 9616620
Date: 2017-04-11
CPC Classifications: B05C,B22F,B29C,B33Y,Y02P

Claim:
1. Plant for the layered construction of a molded body by forming layers of construction material lying one upon another, on a construction field, and by selectively solidifying a partial area of the respective construction material layer prior to forming the next layer, comprising: a coating device which is movable horizontally across the construction field for applying a uniform layer of the construction material to be solidified to the construction field, and comprises an elongate metering shaft, at the lower side of which a longitudinal slot is provided for outputting the construction material as the metering shaft moves across the construction field, and a stationary coating device cleaner mounted on a construction frame of the plant below the coating device for cleaning the lower end and the longitudinal slot of the metering shaft, comprising an elongate wiper element that is received below the metering shaft of the coating device at least in part in a construction material collection container, wherein the length of the wiper element is greater than or equal to the length of the metering shaft, wherein the wiper element is supported rotatably and is rotatably drivable by a wiper element drive for making a relative motion between the wiper element and the metering shaft, and wherein the coating device is moveable to the coating device cleaner, in order to wipe away construction material adhering to the lower side of the metering shaft and to wipe the longitudinal slot of the metering shaft, in order to remove obstructions.