METHOD AND DEVICE FOR SWITCHING A PARTICULATE MATERIAL FLOW IN THE CONSTRUCTION OF MODELS IN LAYERS

摘要

The invention relates to a method for switching a particulate material flow in the construction of models in layers, wherein particulate materials (4) are fed to a subsequent method step from a container (1) having an opening in the direction of a workpiece platform. The particles (14) in the container (1) are exposed to a vacuum and to overpressure.

主权项

1. A method for construction of models in layers comprising the steps of:
applying a first layer of a particulate material to a workpiece platform using a coating device; feeding particulate material from a filling device to the coating device through a downward facing opening in the filling device; applying a second layer of particulate material to the workpiece platform using the coating device; wherein the filling device includes a container having opposing first and second side walls and a connector connected to the first side wall; wherein the first side wall has a length; and the process includes applying excess pressure to the particulate material in the filling device through a plurality of opening along the length of the first side wall.