3D printing material extruder

Abstract

The invention discloses a 3D printing material extruder in remote driving and short extruding. A driving function device and a material extruding function device are separated; and torque is transmitted through a soft shaft, continuous and stable output of the torque can be guaranteed, relative movement can also happen, and the installing flexibility is greatly improved. The driving function device is installed on a 3D printer support, and does not move along with a printing sprayer, the inertia of the printing sprayer is greatly reduced, and movement control of the printing sprayer can be more accurate. Especially for a fast printing and forming model, the control precision on the printing sprayer is improved, and the forming rate of the model can be greatly increased; and the material extruding function device is installed on a 3D printing sprayer support and moves along with the printing sprayer, material wires extruded by a driving extruding wheel and a driven pressing wheel are made to enter a throat pipe at a shortest distance, and wire outflow stability and uniformity are kept. Especially for a flexible material, the distance between the material extruding device and the throat pipe is shortened, and the problem that because of material wire bending and stretching and shrinking, wire outflow is not uniform can be solved to the maximum extent.

Description

technical field [0001] The invention relates to the technical field of 3D printing extruders, in particular to a 3D printing extruder with remote drive and short-distance extrusion. Background technique [0002] With the wide application of 3D printers in all walks of life, the research on 3D printers has gradually become hot. The quality of 3D printing depends on the precise relative movement of the printing nozzle and the platform and the uniformity and accuracy of the extruded filaments of the extrusion device. There are two types of 3D printing extruders currently in use, including short-distance extrusion and remote extrusion. The distance between the extrusion device and the 3D printing nozzle of the short-range extruder is short, and the precise control of the extrusion movement can be achieved for printing consumables (including flexible materials) of various hardnesses. On the platform, the inertia of the print head is large, resulting in inaccurate motion control...

AI Technical Summary

Problems solved by technology

The distance between the extrusion device and the 3D printing nozzle of the short-range extruder is short, and the precise control of the extrusion movement can be achieved for printing consumables (including flexible materials) of various hardnesses. On the platform, the inertia of the print head is large, resulting in inaccurate motion control of the print head; the remote extruder is installed on the 3D rack, which greatly reduces the inertia of the print head, so the motion control of the print head is very precise

However, due to the long distance between the extrusion device of the remote extruder and the 3D printing nozzle, the movement of the consumables is restricted by a hose in the middle, and it is difficult to achieve precise control of the extrusion movement of consumables (especially flexible materials)

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