LIFTING APPARATUS FOR A BUILDING CYLINDER IN A MACHINE, MACHINE FOR PRODUCING THREE-DIMENSIONAL COMPONENTS HAVING A LIFTING APPARATUS, AND METHOD FOR CONTROLLING THE LIFTING APPARATUS

摘要

The invention relates to a lifting apparatus for a building cylinder (24) in a machine (11) for producing a three-dimensional component (12) by selective consolidation of a build-up material applied in layers by means of a beam (16) acting on the build-up material. Said apparatus comprises a first bracket (41) which receives the building cylinder (24) replaceably, a first guide body (34) which controls the bracket (41) movably and moves the building cylinder (24) into a working plane (20) of a working surface (21) in a process chamber (22), a main drive (44) which controls a piston (46), which can be coupled to a substrate plate (25) of the building cylinder (24), with a stroke movement. At least one further guide body (36) is associated with the first guide body (34), both bodies being movable on at least one guide (38), the at least one further guide body (36) has a bracket (42) on which the main drive (44) is provided, and the first and at least one further guide body (34, 36) having at least one driving apparatus (51) can move successively along the at least one guide (38).