INSTALLATION FOR THE LAYERED CONSTRUCTION OF A SHAPED BODY, COMPRISING A COATING DEVICE CLEANER
First Claim
1. Plant for the layered construction of a molded body by forming layers of construction material lying one upon another, comprising a particulate material, 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,characterized bya stationary coating device cleaner mounted on a construction frame of the plant for cleaning 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, andwherein the wiper element is supported rotatably and can be driven rotatably by a wiper element drive for making a relative motion between the wiper element and the metering shaft,further comprising a controller configured such that, following a predetermined number of coating displacements or depending on a sensor signal which indicates whether it is necessary to clean the metering shaft, it controls a drive of the coating device in such a manner that the coating device is moved to the coating device cleaner, and controls the drive of the wiper element for making the relative motion, so as to wipe away construction material adhering to the lower side of the metering shaft and/or to wipe the longitudinal slot of the metering shaft, in order to remove obstructions.
2 Assignments
0 Petitions
Accused Products
Abstract
A plant (100) for the layered construction of a molded body comprises a coating device (400) and a coating device cleaner (600). The coating device is movable horizontally across a construction field for applying a uniform layer of construction material to be solidified to the construction field and has an elongate metering shaft (410), at the lower side of which a longitudinal slot (412) is provided for outputting the construction material as the metering shaft (410) moves across the construction field. The coating device cleaner (600) is mounted on a construction frame (150) of the plant and serves for cleaning the metering shaft (410). The coating device cleaner (600) comprises an elongate wiper element (610) that is received under the metering shaft (410) of the coating device (400) at least in part in a construction material collection container (620).
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Citations
10 Claims
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1. Plant for the layered construction of a molded body by forming layers of construction material lying one upon another, comprising a particulate material, on a construction field, and by selectively solidifying a partial area of the respective construction material layer prior to forming the next layer, comprising:
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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, characterized by a stationary coating device cleaner mounted on a construction frame of the plant for cleaning 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, and wherein the wiper element is supported rotatably and can be driven rotatably by a wiper element drive for making a relative motion between the wiper element and the metering shaft, further comprising a controller configured such that, following a predetermined number of coating displacements or depending on a sensor signal which indicates whether it is necessary to clean the metering shaft, it controls a drive of the coating device in such a manner that the coating device is moved to the coating device cleaner, and controls the drive of the wiper element for making the relative motion, so as to wipe away construction material adhering to the lower side of the metering shaft and/or to wipe the longitudinal slot of the metering shaft, in order to remove obstructions. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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2-4. -4. (canceled)
Specification