A multi-color mixing extrusion nozzle of an FDM printer

Abstract

The utility model relates to 3D printing technical field especially relates to a multicolor mixed extrusion spray head of FDM printer, including mixed spray head body, be provided with fixed structure on the mixed spray head body, be provided with adjusting structure on the fixed structure, this multicolor mixed extrusion spray head of FDM printer is through the adjusting structure that sets up, through the accurate conversion of linear motion and rotation, has realized the efficient accurate adjustment of the angle of cooling fan. Electric push rod as power source has the characteristics of quick response, control precision, cooperates with the linear constraint of guide frame to moving rack, effectively eliminates the radial clearance in the transmission process, ensures the stability of angle adjustment. The bearing cooperation design of rotating shaft and fixed frame reduces the rotating friction resistance, makes the mounting frame can rotate smoothly, and the gear and rack meshing transmission has higher motion transmission efficiency, makes the cooling fan can respond to the adjustment instruction quickly.

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