Abstract
In view of the existing 3D printer of low efficiency and poor precision and expensive raw materials and other issues, in-depth analysis of the working mechanism of the 3D printer, the design model based on Fused Deposition Modeling (FDM) technique 3D printer, put forward three nozzle extrusion mechanisms, improve the shortcomings of the current 3D in the printer. According to the function of each part of the mechanical structure of different 3D printer modules, respectively to study the extrusion mechanism, feeding mechanism, servo system and temperature control system, and also carry on the simulation analysis of nuclear structure. The components of FDM technology based on 3D printer design and assembly, to provide the model simulation analysis of the 3D printer and 3D printer for further improvement; the core institutions (extrusion mechanism) and the structure of clever design, developed three nozzle extrusion mechanism, piston pump type extrusion mechanism and slide pump type extrusion mechanism of 3D; the printer bearing stiffness and strength properties of parts are analyzed, the reliability of the mechanical structure design Inspection Institute; fluid simulation analysis of the extrusion mechanism, simulation of internal fluid 3D when the printer is working mechanism of the actual movement situation, verify the feasibility of the three nozzle extrusion mechanism; research on the flow control of 3D printers, collaboration process analysis 3D printer work extruding mechanism, feeding mechanism and servo mechanism, ensure that the 3D printer Stability of work.
