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    THREE-DIMENSIONAL PRINTER TOOL SYSTEMS
    1.
    发明公开
    THREE-DIMENSIONAL PRINTER TOOL SYSTEMS 有权
    WERKZEUGSYSTEMEFÜREINEN DREIDIMENSIONALEN DRUCKER

    公开(公告)号：EP3068609A4

    公开(公告)日：2017-07-26

    申请号：EP14862311

    申请日：2014-11-10

    申请人： MAKERBOT IND LLC

    发明人： SCHMEHL PETER JOSEPH ,  KEMPERLE ALJOSA ,  SCHMEHL STEWART ,  TUZMAN DAVID R

    IPC分类号： B29C67/00 ,  B33Y30/00

    CPC分类号： B29C67/0088 ,  B29C47/0002 ,  B29C47/0866 ,  B29C47/1054 ,  B29C47/822 ,  B29C47/92 ,  B29C64/106 ,  B29C64/112 ,  B29C64/35 ,  B29L2009/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/00

    摘要： An extruder or other similar tool head of a three-dimensional printer is slidably mounted along a feedpath of build material so that the extruder can move into and out of contact with a build surface according to whether build material is being extruded. The extruder may be spring-biased against the forward feedpath so that the extruder remains above the build surface in the absence of applied forces, and then moves downward into a position for extrusion when build material is fed into the extruder. In another aspect, modular tool heads are disclosed that can be automatically coupled to and removed from the three-dimensional printer by a suitable robotics system. A tool crib may be provided to store multiple tool heads while not in use.

    摘要翻译： 三维打印机的挤出机或其他类似工具头沿构建材料的馈送路径可滑动地安装，使得挤出机可根据构建材料是否被挤出而移动到构建表面和不与构建表面接触。 挤压机可以相对于前进路径弹簧偏置，使得挤压机在没有施加力的情况下保持在建造表面上方，然后当建造材料被供给到挤压机中时向下移动到用于挤压的位置。 在另一方面，公开了可通过合适的机器人系统自动耦合到三维打印机并从中移除的模块化工具头。 可以提供工具箱以在不使用时存储多个工具头。

    HIGHLY CRYSTALLINE POLY (LACTIC ACID) FILAMENTS FOR MATERIAL-EXTRUSION BASED ADDITIVE MANUFACTURING
    2.
    发明公开
    HIGHLY CRYSTALLINE POLY (LACTIC ACID) FILAMENTS FOR MATERIAL-EXTRUSION BASED ADDITIVE MANUFACTURING 审中-公开
    INE INE INE UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG

    公开(公告)号：EP3140106A1

    公开(公告)日：2017-03-15

    申请号：EP15789308.2

    申请日：2015-05-08

    申请人： JF Polymers (Suzhou) Co. Ltd.

    发明人： LUO, Xiaofan ,  PEI, Zhaokun

    IPC分类号： B29C71/02 ,  C08L67/04 ,  B29B9/06 ,  D01F6/92 ,  D01D5/08 ,  D01D5/084

    CPC分类号： B29C67/0055 ,  B29C47/0002 ,  B29C47/0004 ,  B29C47/0014 ,  B29C47/1054 ,  B29C47/12 ,  B29C64/106 ,  B29C71/0063 ,  B29C71/02 ,  B29C2071/022 ,  B29K2067/046 ,  B29K2105/0067 ,  B29K2995/0041 ,  B29L2031/731 ,  B33Y10/00 ,  B33Y70/00 ,  C08G63/08 ,  D01D5/08 ,  D01F6/625

    摘要： Provided is a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon the finding that poly (lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly (lactic acid) filament can accordingly be used in the additive manufacturing of three dimensional articles without encountering the problems associated with premature softening, such as poor quality and printer jamming. The crystalline poly (lactic acid) filaments can also be used in additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, or leading to increased printer complexity. It more specifically discloses a filament for use in three-dimensional printing which is comprised of crystalized poly (lactic acid), wherein said filament has a diameter which is within the range of 1.65 mm to 1.85 mm.

    摘要翻译： 对于在三维制品的添加剂制造中PLA纤维素过早软化所涉及的问题提供了新的和更好的解决方案。 基于以下发现：具有高结晶度的聚（乳酸）长丝提供更好的抗热诱导软化的耐受性。 因此，结晶性聚（乳酸）丝可以用于三维制品的添加剂制造中，而不会遇到与过早软化相关的问题，例如质量差和打印机堵塞。 结晶聚（乳酸）丝也可以用于三维制品的添加剂制造中，而不损害最终产品的质量，降低打印速度，增加成本或导致打印机复杂性增加。 更具体地公开了一种用于三维印刷的长丝，其由结晶化的聚（乳酸）组成，其中所述长丝的直径在1.65mm至1.85mm的范围内。

    Extruder for welding plastic components
    8.
    发明公开
    Extruder for welding plastic components 审中-公开
    挤出机用于焊接塑料部件

    公开(公告)号：EP1726429A2

    公开(公告)日：2006-11-29

    申请号：EP06113926.7

    申请日：2006-05-15

    申请人： RITMO S.p.A.

    发明人： Bortoli, Renzo

    IPC分类号： B29C47/38 ,  B05C17/005

    CPC分类号： B05C17/0053 ,  B29C47/0002 ,  B29C47/0014 ,  B29C47/1018 ,  B29C47/1054 ,  B29C47/38 ,  B29C47/6093

    摘要： An extruder for welding plastic components, of the type comprising a rear part (12), for feeding and segmenting a continuous plastic filament (13), and a front part (11), for plasticizing and ejecting plastic material to be deposited on the weld. The front part (11) comprises a first chamber (15) for moving the particles (16) of plastic material from the rear part (12) to a second chamber (17) for plasticizing and ejection, which ends with a first nozzle (18) suitable to eject the melted plastic material. The extruder further comprises a duct (33) for heating forced air, which is formed between the outer surface (34) of the external containment enclosure (14) and the walls of the first and second chambers (15, 17); the heating duct (33) ends with a second nozzle (35) for ejecting the heated air, which is arranged proximate to the first nozzle (18). The heated air that exits from the second nozzle (35) is useful for preheating the welding area.

    摘要翻译： 一种用于焊接塑料部件的挤压机，该部件包括用于供给和分割连续塑料长丝（13）的后部（12）和用于塑化和喷射待沉积在焊缝上的塑性材料的前部（11） 。 前部（11）包括用于将塑料材料颗粒（16）从后部（12）移动到用于塑化和喷射的第二腔室（17）的第一腔室（15），第一腔室（15）以第一喷嘴 ）适合于喷射熔化的塑料材料。 该挤出机还包括用于加热强制空气的管道（33），该管道形成在外部密封外壳（14）的外表面（34）与第一和第二室（15,17）的壁之间; 加热管道（33）终止于用于喷射热空气的第二喷嘴（35），该第二喷嘴布置在第一喷嘴（18）附近。 从第二喷嘴（35）排出的热空气对于预热焊接区域是有用的。