中文摘要：

当前基于熔融沉积成型的桌面级3D打印机的大部分打印头装置只能打印一种颜色的耗材,打印出来的物体颜色单一,为了解决这一问题,在分析了整个3D打印头装置的基础上,运用TRIZ理论对3D打印头进行了创新设计,设计出一种双进料单挤出的打印头装置,该打印头装置能将两种颜色的耗材融化混合,并从同一喷嘴挤出,实现混色打印.运用UG有限元模块对所设计机构进行了温度场的模拟分析,最终对装置进行了试验,验证了温度场分析的正确性,达到了混色要求,为3D打印机混色装置的进一步研究提供了理论依据.

英文摘要：

Most of 3D printer can extrude one material with sam~ color based on fused deposition modeling. To solve the problem, the head of 3D printing device was analyzed, and then innovative design of 3D printing device for color mixture was done based on TRIZ, and a kind of device with dual feed and single extrusion was designed. The materials of two colors was melted by the device and extruded from the same nozzle. The simulation of 3D printing device in the temperature was carried out by UG/FEM function module, the manual test was conducted finally, the correctness of analysis of temperature field was verified, and the requirement of color mixture was reached, and the theory basis was provided for further study.