Patent ID: 9333709
Filing Date: 2016-05-10
CPC Classification: B05C,B22F,B28B,B29C,B29K,B33Y,Y02P

Claim Text:
1. An apparatus for manufacturing three-dimensional models by means of a 3D printing process comprising: a build platform having a base surface for application of a build material including a particulate material and a liquid material; a support frame arranged around the build platform having guiding elements, to which said support frame is attached: at least two vertical positioning units for moving the support frame in a Z direction perpendicular to the base surface of the build platform; a stationary material storage device for storing the particulate material, and a material feeding device for supplying the particulate material in batches from the material storage device to the receiving container with the least possible amount of shearing forces to the particulate material and without significant Interaction of the particulate material with atmosphere; wherein the coater device and the print head are attached to the support frame via the guiding elements; and wherein the coating device, the print head and the receiving container move in the Z direction with the movement of the support frame; wherein the material feeding device has a fixed feeding location positioned below the stationary material storage device and a discharge location positioned above the receiving container and movable in at least the Z direction with an incline angle that adjusts as the build frame moves vertically; wherein the material feeding device includes an incline angle that adjusts as the build frame moves vertically, or the material feeding device includes a lifting device having a linear actuator that moves a conveying crucible to a height that adjusts as the build frame moves vertically.