公开(公告)号：US08827684B1

公开(公告)日：2014-09-09

申请号：US14139349

申请日：2013-12-23

申请人： Nathan D. Schumacher ,  Nathan J. Patterson ,  Kevin L. Harris ,  Todd J. Bakken

发明人： Nathan D. Schumacher ,  Nathan J. Patterson ,  Kevin L. Harris ,  Todd J. Bakken

IPC分类号： B28B1/16

CPC分类号： B29C64/20 ,  B29C64/106

摘要： A fused filament fabrication printer has a fixed extrusion module having multiple printheads having print tips. The fixed arrangement of the printing heads allows the close spacing of multiple print tips in a printhead unit, and the simple routing of multiple plastic or metal filaments to the individual printing heads. The closely spaced print tips in the printhead unit share common components. An exemplary printhead unit has four printing heads which share a common heating block and heating block temperature sensor. The heating block incorporates a group of four print tips evenly spaced along a line. Each printing head has a separate filament which is controlled and driven by its own stepper motor through the heating block to one of the print tips. Printing of a part is by control of individual stepper motors which drive filaments through the heating block and through one of the printing tips.

摘要翻译： 熔丝制造打印机具有具有多个具有打印头的打印头的固定挤出模块。 打印头的固定布置允许打印头单元中的多个打印头部的紧密间隔，以及将多个塑料或金属丝线简单地布置到各个打印头。 打印头单元中紧密间隔的打印头部共享共同的部件。 示例性的打印头单元具有共享共同加热块和加热块温度传感器的四个打印头。 加热块包含一组沿着一条线均匀分布的四个打印头。 每个打印头具有单独的细丝，其由其自身的步进电机通过加热块控制和驱动到其中一个打印头。 部件的印刷是通过控制驱动细丝通过加热块并通过其中一个印刷尖端的单独的步进电机。