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11. 发明申请

WO2018002842A1 METHOD FOR THE PRODUCTION OF A DENTAL ARTICLE 审中-公开
标题翻译：生产牙科用品的方法
公开(公告)号：WO2018002842A1
公开(公告)日：2018-01-04
申请号：PCT/IB2017/053870
申请日：2017-06-28
申请人： DWS S.R.L.
发明人： COSTABEBER, Ettore Maurizio , MAROZIN, Alessandro
IPC分类号： A61C13/00 , A61C13/08
摘要： The invention relates to a method for the production of a dental article, the method comprising : performing a three-dimensional scan of a portion of a dental arch including at least part of a tooth; generating a first file containing a three-dimensional model of the at least part of tooth scanned, said three- dimensional model comprising (i) spatial coordinates, in a three- dimensional space having an elevation axis Z, of a plurality of points belonging to an outer surface of the at least part of the tooth scanned and (ii) a colour of the outer surface associated with each point of the plurality; processing the first file by associating a same colour with all the points having the same coordinate value in the elevation axis Z, thereby obtaining a second file; sending the second file to a laser stereolithography machine; obtaining a stereolithographic model of said at least part of tooth based on said second file by subsequent polymerization of layers of a liquid material arranged along the elevation axis Z, so as to obtain the stereolithographic model having for each coordinate value in the elevation axis Z a same colour as present in said second file.
摘要翻译：本发明涉及一种用于生产牙科用品的方法，该方法包括：对牙齿的包括至少一部分牙齿的一部分进行三维扫描; 生成包含被扫描的牙齿的至少一部分的三维模型的第一文件，所述三维模型包括（i）在具有仰角轴线Z的三维空间中的属于被扫描的牙齿的至少一部分的外表面和（ii）与多个牙齿的每个点相关联的外表面的颜色; 通过将相同颜色与仰角轴Z上具有相同坐标值的所有点相关联来处理第一文件，从而获得第二文件; 将第二文件发送到激光立体平版印刷机; 通过随后聚合沿着仰角轴线Z布置的液体材料层，基于所述第二锉刀获得所述至少一部分牙齿的立体平版印刷模型，从而获得具有仰角轴线Za中的每个坐标值的立体平版印刷模型与所述第二文件中存在的颜色相同。

12. 发明申请

WO2016103178A1 STEREOLITHOGRAPHY MACHINE WITH FACILITATED INITIALIZATION 审中-公开
标题翻译：具有简化初始化的立体成像机
公开(公告)号：WO2016103178A1
公开(公告)日：2016-06-30
申请号：PCT/IB2015/059882
申请日：2015-12-22
申请人： DWS S.R.L.
发明人： BUSATO, Renzo
IPC分类号： B29C67/00 , B23Q3/00 , B33Y30/00
CPC分类号： B29C64/124 , B29C64/40 , B33Y30/00
摘要： A stereolithography machine (1) comprising: a tank (2) provided with a bottom (2a); a modelling plate (3) facing the bottom (2a); a moving unit (4) suited to move the modelling plate (3) according to a direction of movement (Z) that is orthogonal to the bottom (2a); a coupling unit (5) between the modelling plate (3) and the moving unit (4), comprising a first coupling member (6) integral with the moving unit (4) and a second coupling member (7) integral with the modelling plate (3) and movable with respect to the first coupling member (6) according to the direction of movement (Z); tightening means (8) suited to be operated in such a way as to tighten the coupling members (6, 7) against each other according to a tightening direction (X) that is orthogonal to the direction of movement (Z), in order to lock the mutual movement of the coupling members (6, 7).
摘要翻译：一种立体光刻机（1），包括：设有底部（2a）的罐（2）; 面向底部（2a）的造型板（3）; 适于根据与底部（2a）正交的移动方向（Z）移动建模板（3）的移动单元（4）; 所述建模板（3）和所述移动单元（4）之间的联接单元（5）包括与所述移动单元（4）成一体的第一联接构件（6）和与所述建模板（3）并且可以根据移动方向（Z）相对于第一联接构件（6）移动; 紧固装置（8）适于以根据与移动方向（Z）正交的紧固方向（X）将联接构件（6,7）相互紧固的方式操作，以便锁定联接构件（6,7）的相互运动。

13. 发明申请

WO2015145320A1 METHOD AND EQUIPMENT FOR GENERATING A NUMERICAL REPRESENTATION OF A THREE-DIMENSIONAL OBJECT, SAID NUMERICAL REPRESENTATION BEING SUITED TO BE USED FOR MAKING SAID THREE-DIMENSIONAL OBJECT THROUGH STEREOLITHOGRAPHY 审中-公开
标题翻译：用于产生三维对象的数字表示的方法和设备，用于通过立体图形成三维对象的数字表示
公开(公告)号：WO2015145320A1
公开(公告)日：2015-10-01
申请号：PCT/IB2015/052066
申请日：2015-03-20
申请人： DWS S.R.L.
发明人： MAROZIN, Alessandro
IPC分类号： B29C67/00 , G06F17/50
CPC分类号： B29C64/40 , B29C64/135 , B29C64/386 , B33Y50/00 , G06F17/50 , G06F2217/12 , G06F2217/16 , Y02P90/265
摘要： Computer-implemented method for generating a numerical representation of a three-dimensional object (11) to be made through stereolithography, comprising the following operations: preparing a first set of data (1) representative of the geometry of the object (11); defining first surfaces (13, 13a) of the object (11) and reference surfaces (14, 14a) facing them; defining a corresponding first point (X1) on the first surface (13, 13a), a corresponding second point (X2) on the corresponding reference surface (14, 14a) and corresponding geometric parameters (P1...Pn) that define the three-dimensional geometry of a corresponding supporting element (15) that connects the first point (X1) to the second point (X2); generating a third set of data (3) containing the coordinates (7) of the first point (X1) and of the second point (X2) and the values (8) of the geometric parameters (P1...Pn) of each supporting element (15); generating a numerical representation of each supporting element (15) based on the third set of data (3); calculating a second set of data (2) representative of the geometry resulting from the union of the object (11) with the supporting elements (15).
摘要翻译：用于生成通过立体光刻制作的三维物体（11）的数值表示的计算机实现的方法，包括以下操作：准备表示物体（11）的几何形状的第一组数据（1）; 限定物体（11）的第一表面（13,13a）和面对它们的参考表面（14,14a）; 在所述第一表面（13,13a）上限定对应的第一点（X1），相应的参考表面（14,14a）上的对应的第二点（X2）和对应的几何参数（P1 ... Pn）连接第一点（X1）到第二点（X2）的对应支撑元件（15）的三维几何形状; 生成包含第一点（X1）和第二点（X2）的坐标（7）和每个支撑的几何参数（P1 ... Pn）的值（8）的第三组数据（3）元素（15）; 基于所述第三组数据（3）生成每个支撑元件（15）的数值表示; 计算代表由对象（11）与支撑元件（15）的结合产生的几何形状的第二组数据（2）。

14. 发明申请

WO2015145318A1 IMPROVED COMPUTER-IMPLEMENTED METHOD FOR DEFINING THE POINTS OF DEVELOPMENT OF SUPPORTING ELEMENTS OF AN OBJECT MADE BY MEANS OF A STEREOLITHOGRAPHY PROCESS 审中-公开
标题翻译：改进的计算机实现方法，用于通过立体成像方法定义对象的支持元素的发展要点
公开(公告)号：WO2015145318A1
公开(公告)日：2015-10-01
申请号：PCT/IB2015/052057
申请日：2015-03-20
申请人： DWS S.R.L.
发明人： MAROZIN, Alessandro
IPC分类号： B29C67/00 , G06F17/50
CPC分类号： G06F17/5009 , B29C64/124 , B29C64/386 , B29C64/40 , B33Y50/00 , G06F17/50
摘要： Computer-implemented method for defining, on a three-dimensional model of an object (1), the points of development (6) of supporting elements (7) of the object (1) during its production through a stereolithography process. The method includes the steps of defining the surfaces or portions of surfaces (2) of the object (1) whose points are oriented towards a reference plane (π); of tracing a predefined grid of points (3) on each one of the surfaces or portions of surfaces (2); of identifying, for each one of the surfaces or portions of surfaces (2), the presence of at least one local minimum point (5) with respect to the reference plane (π); of adapting, for each one of said surfaces or portions of surfaces (2), the grid of points (3) so that one of the points of the grid (3) substantially coincides with the local minimum point (5); and of identifying the points of the adapted grid (3) as points of development (6) of the supporting elements (7) for each one of said surfaces or portions of surfaces (2).
摘要翻译：计算机实现的方法，用于在对象（1）的三维模型中定义对象（1）的支撑元素（7）在其通过立体光刻过程的生产过程中的发展点（6）。该方法包括以下步骤：限定其点朝向参考平面（π）的物体（1）的表面（2）的表面或部分; 在表面（2）的每个表面或部分上跟踪点（3）的预定网格; 为所述表面（2）的每个表面或部分识别关于参考平面（π）的至少一个局部最小点（5）的存在; 对于所述表面或表面（2）中的每一个适配点（3）的网格，使得格栅（3）的点中的一个基本上与局部最小点（5）重合; 以及将所述适配网格（3）的点识别为所述表面或表面（2）的每一个的所述支撑元件（7）的显影点（6）。

15. 发明申请

WO2012150497A1 PERFECTED METHOD FOR MANUFACTURING THREE-DIMENSIONAL OBJECTS IN LAYERS AND PERFECTED STEREOLITHOGRAPHY MACHINE USING SAID METHOD 审中-公开
标题翻译：使用方法制作层和三维立体成像机的三维物体的完美方法
公开(公告)号：WO2012150497A1
公开(公告)日：2012-11-08
申请号：PCT/IB2012/000873
申请日：2012-05-03
申请人： DWS S.R.L. , ZENERE, Sergio
发明人： ZENERE, Sergio
IPC分类号： B29C67/00
CPC分类号： B29C64/35 , B29C64/00 , B29C64/124 , B29C64/129 , B29C64/20 , B33Y10/00 , B33Y30/00
摘要： The invention is a method for making three-dimensional objects (O) formed by a plurality of superimposed layers (L) of a fluid photopolymer (R) suited to solidify through polymerization following a stimulating action, comprising the following operations: - making the fluid photopolymer (R) flow on a supporting surface exposed to stimulation in such a way as to define a layer (L) adjacent to the previous layer (L); - selectively exposing the layer (L) to stimulation in one or more predefined areas (K); - repeating the step regarding flow and exposure for each successive layer (L) of the three-dimensional object (O). The method also includes an operation intended to reduce pressure in the environment where the three-dimensional object (O) is manufactured compared to the external atmospheric pressure, prior to said operations regarding flow and exposure.
摘要翻译：本发明是一种用于制造三维物体（O）的方法，所述三维物体（O）由适于通过聚合反应固化的流体光聚合物（R）的多个叠加层（L）形成，所述多个叠加层（L）在刺激作用之后，包括以下操作： - 使流体光聚合物（R）在暴露于刺激的支撑表面上以限定与前一层（L）相邻的层（L）的方式流动; - 选择性地将所述层（L）暴露于一个或多个预定区域（K）中的刺激; - 重复关于三维物体（O）的每个连续层（L）的流动和曝光的步骤。在所述关于流动和曝光的操作之前，该方法还包括旨在减少与外部大气压力相比制造三维物体（O）的环境中的压力的操作。

16. 发明申请

WO2019097385A1 CARTRIDGE FOR A STEREOLITHOGRAPHIC MACHINE. 审中-公开
公开(公告)号：WO2019097385A1
公开(公告)日：2019-05-23
申请号：PCT/IB2018/058858
申请日：2018-11-12
申请人： DWS S.R.L.
发明人： COSTABEBER, Ettore, Maurizio , BUSATO, Renzo
IPC分类号： B33Y40/00 , B29C64/124 , B29C64/255 , B29C64/307 , B29C64/264
CPC分类号： B33Y40/00 , B29C64/124 , B29C64/255 , B29C64/264 , B29C64/307
摘要： The present invention relates to a cartridge (10) for a stereolithographic machine, comprising: a box-like body (1 1 ) comprising in turn: a container (12), delimited by containment walls (13), having a bottom (14), at least a part of which is transparent, and an opposite access opening (15) adapted to allow access inside the container (12), an inlet mouth (16) and an outlet mouth (17) for a photopolymerisable material, at least one tank (18) for a photopolymerisable material, comprising a transit opening (19) for a photopolymerisable material and an air passage opening (20) communicating with the environment; and comprising: circulation means (21 ) for the circulation of a photopolymerisable material between the outlet mouth (17) and the inlet mouth (16) of the container (12). Between the circulation means (21 ) and the inlet (16) and outlet (17) mouths, and between the circulation means (21 ) and the transit (19) and air passage (20) openings, valve means (22, 23) are interposed, which are configured to alternatively allow the following use configurations of the cartridge (10): a first configuration preventing the passage of photopolymerisable material between the container (12) and the tank (18); a second configuration allowing the passage of photopolymerisable material between the tank (18) and the container (12); a third configuration of circulation for the photopolymerisable material, allowing the passage of photopolymerisable material between the outlet mouth (17) and the inlet mouth (16) of the same container (12).

17. 发明申请

WO2019097383A1 MULTI-STATION STEREOLITHOGRAPHIC GROUP 审中-公开
公开(公告)号：WO2019097383A1
公开(公告)日：2019-05-23
申请号：PCT/IB2018/058854
申请日：2018-11-12
申请人： DWS S.R.L.
发明人： COSTABEBER, Ettore, Maurizio , BUSATO, Renzo
IPC分类号： B29C64/124 , B29C64/241 , B29C64/35 , B29C64/30 , B29C35/02 , B33Y30/00
摘要： The present invention concerns a multi-station stereolithographic group (10), comprising: support and movement means (1 1 ) for a modelling plate (12) with respect to a fixed base (13) facing the modelling plate (12), the fixed base (13) comprising at least two work stations (16, 17) positioned in respective areas able to be reached by the modelling plate (12) moved by the support and movement means (1 1 ). Such a fixed base (13) comprises at least three work stations (16, 17, 18): at least one first station (16) for forming an object, at least one second station (17) for washing a formed object, at least one third station (18) for stabilising a formed object.

18. 发明申请

WO2018109636A1 STEREOLITHOGRAPHY MACHINE WITH INCLINED TANK 审中-公开
公开(公告)号：WO2018109636A1
公开(公告)日：2018-06-21
申请号：PCT/IB2017/057789
申请日：2017-12-11
申请人： DWS S.R.L.
发明人： ZENERE, Sergio , BUSATO, Renzo
IPC分类号： B33Y30/00 , B33Y40/00 , B29C64/124 , B29C64/20
摘要： A stereolithography machine (100) that comprises a support structure (1a) arranged resting on a substantially horizontal support plane (π) having a reference direction (X), a tank (2) coupled with the support structure (1a) and provided with a bottom (2a), a support group (5) coupled with the support structure (1a) for the movement above the tank (2) of a modelling plate (3) so that the modelling surface (3a) of such a modelling plate (3) faces, substantially in a parallel position, the bottom (2a). The stereolithography machine (100) provides that, at least during the execution of the stereolithography process for the production of a three-dimensional object, the tank (2), the support group (5) and the modelling plate (3) are coupled with the support structure (1a) so that the modelling surface (3a) and the bottom (2a) lie on planes (π1, π2) intersecting the support plane (π) defining with this support plane angles of intersection (α1) and (α2), respectively, and defining with this support plane (π) lines of intersection (γ1, γ2) respectively, orthogonal to the reference direction (X).

19. 发明申请

WO2017130153A1 A PHOTOCURABLE RESIN COMPOSITION FOR STEREOLITHOGRAPHIC MANUFACTURING, THREE-DIMENSIONAL ARTICLES PRODUCED WITH SAID COMPOSITION AND A RELATIVE MANUFACTURING METHOD 审中-公开
标题翻译：一种用于二氧化硅造影制造的可光固化树脂组合物，具有所述组合物的三维制品及相关制造方法
公开(公告)号：WO2017130153A1
公开(公告)日：2017-08-03
申请号：PCT/IB2017/050449
申请日：2017-01-27
申请人： DWS S.R.L.
发明人： HAGIWARA, Tsuneo , IKETANI, Satoshi
IPC分类号： G03F7/00 , B29C67/00 , G03F7/038
CPC分类号： G03F7/0037 , B29C64/124 , B33Y70/00 , G03F7/038
摘要： The invention refers to a liquid photocurable resin composition for stereolithography, comprising (i) at least one radical polymerizable compound (A) represented by the following general formula (I): R 4O -CO-NH-R 2 -NH-C-O-R 1 -O-CO-NH-R 3 -NH-CO-OR 4 (I), wherein R 1 is a linear or branched polytetramethylene glycol residue having an average molecular weight from 200 to 3,000 g/mol; R 2 is a diisocyanate compound residue; R 3 is a diisocyanate compound residue being the same as or different from R 2 ; and R 4 is selected from AcrO-CH 2 -CH-, (AcrO-CH 2 ) 2 CH-, (AcrO-CH 2 ) 3 C-CH 2 - AcrO-CH 2 -CHCH 3 -, AcrO-CH 2 -GHG 2 H 5 - and (ΑcrΟ-CΗ 2 ) 2 C(C 2 Η 5 )CΗ 2 -, preferably from AcrO-CH 2 -CH 2 - and (AcrO-CH 2 ) 2 CH-, more preferably is AcrO-CH 2 -CH-; wherein Acr is CH 2 =C(R)-CO- and R is a hydrogen atom or a methyl group; (ii) at least one radically polymerizable organic compound (B) different from compound (A); and (iii) a photosensitive radical polymerization initiator (C), wherein the content of said radical polymerizable compound (A) varies from 5% to 70% by weight based on the total amount of compounds (A) and (B). The invention further describes a corresponding stereolithographic use and method and three-dimensional articles produced therewith.
摘要翻译：本发明涉及用于立体光刻的液体光固化性树脂组合物，其包含（i）至少一种由以下通式（I）表示的自由基聚合性化合物（A）：R 40 O SUP> -CO-NH-R ^{2 -NH-COR ^{1 -O-CO-NH-R ^{3 -NH-CO-OR （I），其中R 1是平均分子量为200-3,000g / mol的直链或支链聚四亚甲基二醇残基; R 2是二异氰酸酯化合物残基; R 3是与R 2相同或不同的二异氰酸酯化合物残基; 和R 4选自AcrO-CH 2 -CH-，（AcrO-CH 2）2 CH - ，（AcrO-CH 2）3 C-CH 2 -AcrO-CH 2 -CHCH-sub AcrO-CH 2 -GGH 2 -H 5 - 和（A CO-C H 2） - ，（C 2 H 5）2 CH 2 - ，优选来自AcrO-CH 2 （AcrO-CH 2）2 CH-，更优选为AcrO-CH 2 -CH-; 其中Acr为CH 2 = C（R）-CO-且R为氢原子或甲基; （ii）至少一种不同于化合物（A）的可自由基聚合的有机化合物（B）; 和（iii）光敏自由基聚合引发剂（C），其中基于化合物（A）和（B）的总量，所述自由基可聚合化合物（A）的含量为5重量％至70重量％。本发明进一步描述了相应的立体平版印刷用途和方法以及由此制造的三维制品。}}}

20. 发明申请

WO2015145346A1 METHOD AND EQUIPMENT FOR DEFINING A SUPPORTING STRUCTURE FOR A THREE-DIMENSIONAL OBJECT TO BE MADE THROUGH STEREOLITHOGRAPHY 审中-公开
标题翻译：用于定义通过立体图的三维对象的支撑结构的方法和设备
公开(公告)号：WO2015145346A1
公开(公告)日：2015-10-01
申请号：PCT/IB2015/052139
申请日：2015-03-24
申请人： DWS S.R.L.
发明人： MAROZIN, Alessandro
IPC分类号： B29C67/00 , G06F17/50
CPC分类号： G06F17/5086 , B29C64/386 , B29C64/40 , B33Y10/00 , B33Y40/00
摘要： The invention is a computer-implemented method for defining a supporting structure (2) for a three-dimensional object (1) to be produced through a stereolithography process, comprising the following operations: defining a first surface (3) to be supported of the three-dimensional object (1) and a second surface (4) facing the first surface (3); defining elongated supporting elements (5) between the surfaces (3, 4); defining pairs of supporting elements (5); for each pair of supporting elements (5), defining an elongated reinforcing element (6) connecting the two supporting elements (5) of the pair. The definition of the pairs of supporting elements (5) comprises the following operations: defining a reference point (7) of each supporting element (5); defining a connected acyclic graph (8) having as vertices the reference points (7); for each edge (9) of the graph, defining one pair of supporting elements comprising the two supporting elements (5) corresponding to the ends of the edge (9). The definition of the pairs of supporting elements (5) comprises the further operation of defining an additional pair of supporting elements for each vertex having order 1 of the connected acyclic graph (8), the additional pair comprising a first supporting element (5) corresponding to the vertex having order 1 and a second supporting element (5) not connected to the first supporting element (5) through any edge (9).
摘要翻译：本发明是一种用于定义用于通过立体光刻工艺制造的三维物体（1）的支撑结构（2）的计算机实现的方法，包括以下操作：限定待支撑的第一表面（3）三维物体（1）和面向第一表面（3）的第二表面（4）。在所述表面（3,4）之间限定细长的支撑元件（5）; 定义成对的支撑元件（5）; 对于每对支撑元件（5），限定连接该对的两个支撑元件（5）的细长加强元件（6）。支撑元件对（5）的定义包括以下操作：定义每个支撑元件（5）的参考点（7）; 定义具有参考点（7）的顶点的连接非循环图（8）; 对于曲线图的每个边缘（9），限定一对支撑元件，其包括对应于边缘（9）的端部的两个支撑元件（5）。支撑元件对（5）的定义包括为连接的无环图（8）的阶数为1的每个顶点定义另外的一对支撑元件的另外的操作，所述附加对包括相应的第一支撑元件（5）到具有顺序1的顶点和通过任何边缘（9）未连接到第一支撑元件（5）的第二支撑元件（5）。

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