公开(公告)号：US09738034B2

公开(公告)日：2017-08-22

申请号：US15037170

申请日：2014-11-19

申请人： Ivoclar Vivadent AG ,  Technische Universität Wien

发明人： Simon Gruber ,  Jürgen Stampfl ,  Jörg Ebert

IPC分类号： B29C35/00 ,  B29C67/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29K27/18 ,  B29K59/00

CPC分类号： B29C64/386 ,  B29C64/124 ,  B29C64/135 ,  B29C64/20 ,  B29C64/40 ,  B29K2027/18 ,  B29K2059/00 ,  B33Y30/00 ,  B33Y50/02

摘要： A device for processing of highly viscous photopolymerizable material for layer-by-layer generation of a shaped body comprises a vat including a bottom which is at least in certain areas thereof transparent, a build platform, an exposure unit for exposing a material layer formed between the lower side of the build platform and the vat bottom in a locally selective manner, a control unit in order to adapt the relative position of the build platform to the vat bottom after each exposure step for a layer, in order to successively build up the shaped body in the desired shape, and a moveably guided doctor blade arrangement including a drive unit for moving the doctor blade arrangement back and forth underneath the build platform. The doctor blade arrangement comprises two doctor blades spaced apart in movement direction, which doctor blades are moveable at a constant distance to the vat bottom along the bottom. The vat includes vat end walls such that the doctor blade leading in movement direction in each case moves towards one of the vat end walls. Between the two doctor blades a chamber is formed which is open at its lower side, wherein walls of the chamber include at least one opening extending through the wall in movement direction for forming an overflow channel, so that material piling up between the leading doctor blade and the facing vat end wall is pressed through they at least overflow channel into the chamber.

公开(公告)号：US20160279869A1

公开(公告)日：2016-09-29

申请号：US15037170

申请日：2014-11-19

申请人： Ivoclar Vivadent AG ,  Technische Universitat Wien

发明人： Simon Gruber ,  Jürgen Stampfl ,  Jörg Ebert

IPC分类号： B29C67/00

CPC分类号： B29C64/386 ,  B29C64/124 ,  B29C64/135 ,  B29C64/20 ,  B29C64/40 ,  B29K2027/18 ,  B29K2059/00 ,  B33Y30/00 ,  B33Y50/02

摘要： A device for processing of highly viscous photopolymerizable material for layer-by-layer generation of a shaped body comprises a vat including a bottom which is at least in certain areas thereof transparent, a build platform, an exposure unit for exposing a material layer formed between the lower side of the build platform and the vat bottom in a locally selective manner, a control unit in order to adapt the relative position of the build platform to the vat bottom after each exposure step for a layer, in order to successively build up the shaped body in the desired shape, and a moveably guided doctor blade arrangement including a drive unit for moving the doctor blade arrangement back and forth underneath the build platform. The doctor blade arrangement comprises two doctor blades spaced apart in movement direction, which doctor blades are moveable at a constant distance to the vat bottom along the bottom. The vat includes vat end walls such that the doctor blade leading in movement direction in each case moves towards one of the vat end walls. Between the two doctor blades a chamber is formed which is open at its lower side, wherein walls of the chamber include at least one opening extending through the wall in movement direction for forming an overflow channel, so that material piling up between the leading doctor blade and the facing vat end wall is pressed through they at least overflow channel into the chamber.

摘要翻译： 用于处理高粘度可光聚合材料以用于成型体的逐层生成的装置包括：包含至少在其某些区域中的透明的底部的槽，构建平台，用于暴露在 构建平台的下侧和大桶底部以局部选择的方式，控制单元，以便在层的每个曝光步骤之后使构建平台的相对位置适应于大桶底部，以便连续地建立 以及可移动地引导的刮刀装置，其包括用于在构建平台下方来回移动刮刀装置的驱动单元。 刮刀装置包括沿运动方向间隔开的两个刮刀，刮刀可沿底部恒定的距离移动到槽底。 大桶包括大桶端壁，使得在每种情况下沿运动方向导向的刮刀朝着大桶端壁之一移动。 在两个刮刀之间形成有在其下侧开放的腔室，其中腔室的壁包括沿移动方向延伸穿过壁的至少一个开口，用于形成溢流通道，使得材料在引导刮刀 并且面向的大桶端壁通过它们至少溢出通道进入腔室。