A kind of pneumatic cleaning spray head type three-dimensional printer

Abstract

The invention provides a three-dimensional printer with a pneumatic cleaning nozzle, which can clean the nozzle and prevent residual silk material from affecting the printing quality. The present invention proposes a three-dimensional printer with a pneumatic cleaning spray head, which is characterized in that it includes: a frame, a workbench, a waste storage tank, an air pump, a spray head, a silk cavity and a control unit; the top of the frame is installed in parallel with a A rod and a second rod, a third rod is slidably installed between the first rod and the second rod, a telescopic rod is slidably installed on the third rod, and the telescopic rod is connected to the first rod and the second rod The plane where the pole is located is vertical, the third pole is connected with a first driving mechanism for driving it to slide along the first pole and the second pole, and the telescopic pole is respectively connected with a second driving mechanism for driving it to slide along the third pole. The drive mechanism and the third drive mechanism for driving it to expand and contract along the up and down direction; the workbench is installed inside the frame and below the third pole.

Description

technical field [0001] The invention relates to the technical field of three-dimensional printers, in particular to a three-dimensional printer of a pneumatic cleaning spray head type. Background technique [0002] 3D printer is a process of rapid prototyping. It adopts layer-by-layer accumulation to produce 3D models. Its operation process is similar to that of traditional printers, except that traditional printers print ink onto paper to form two-dimensional plane drawings. , while the 3D printer is to stack liquid photosensitive resin materials, molten plastic filaments, gypsum powder and other materials through spraying binder or extrusion to form a three-dimensional entity. [0003] According to the three-dimensional model of the product constructed by CAD, it is sliced ​​in layers to obtain the outline of the cross-section of each layer. According to these outlines, the laser beam is selectively injected to solidify layers of liquid resin, or the injection source sele...

AI Technical Summary

Problems solved by technology

[0006] In the prior art, after the silk material is heated and extruded from the injection head, there will be some residues attached to the inner wall of the injection head. When the silk material corresponding to the cross section of the next layer is extruded, it may be mixed with the remaining silk material, so that The color of the silk material changes, and there is a deviation from the desired color

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