Device and method for constructing a layer body with at least one body limiting the construction field and adjustable in terms of its position

摘要

The invention relates to a device (13) for building up a layered body (5) from a plurality of layers of flowable material, particularly of particle material, which are located in locally predetermined areas by the action of binding agents, on a construction platform (6) one above the other within a construction field (11) are solidified and connected to one another, so that at least one shaped body (4) is formed from the solidified and connected regions of the layers, comprising a discharge device (1) which can be moved back and forth over the construction field (11) with at least one discharge opening ( 14), from which the flowable material can be discharged in individual layers lying one above the other during the movement of the discharge device (1). The invention provides that at least one body (8, 8a) delimiting the construction field (11) in at least one discharge direction of the discharge device (1) and the construction platform (6) in accordance with the respective construction progress of the layer body (5) in the vertical direction relative to one another It is adjustable that a surface of the at least one body (8, 8a) facing the discharge opening (14) is aligned flush with an uppermost layer of the layered body (5) that is still to be produced or has already been produced, around the discharge opening (14) of the discharge device (1). to close and prevent them from discharging flowable material or to discharge flowable material not used for the layer build-up into a collecting container (7) when the discharge opening (14) is above the body (8, 8a).