High-precision 3D (three-dimensional) printer with printing smoothness by double-nozzle technology

Abstract

The invention relates to a high-precision 3D (three-dimensional) printer with printing smoothness by double-nozzle technology. The high-precision 3D printer comprises a lifting measurement mechanism, a printing platform, a material disk, a wire feeding pipe, a lifting plate, a printing mechanism and two lifting units. The printing mechanism comprises a lifting rod, a second motor, a second driving shaft, a connecting block, a dredging mechanism and two nozzles, and the lifting measurement mechanism comprises a pull wire, a rotating disk, a driving gear, a driven gear, a roller, a key-phase cursor, a key-phase sensor and a supporting rod. When the high-precision 3D printer with printing smoothness by the double-nozzle technology is blocked, the second motor drives the connecting block to switch the nozzles, a pin is inserted into one blocked nozzle to dredge the blocked nozzle by the dredging mechanism, and smooth printing is ensured when the nozzles are switched again. Besides, when the lifting units run every time, the height of the printing mechanism can be increased by one layer by the aid of the lifting measurement mechanism, so that distances among layers of a printed sample can be equal, and high-precision printing is realized.

Description

technical field [0001] The invention relates to the field of 3D printing equipment, in particular to a high-precision 3D printer with smooth printing using double nozzle technology. Background technique [0002] 3D printer, also known as three-dimensional printer, is a kind of accumulative manufacturing technology, that is, a machine of rapid prototyping technology. Layers of bonded material are used to create three-dimensional objects. At this stage, 3D printers are used to manufacture products. Objects are constructed by printing layer by layer, and data and raw materials are put into the 3D printer. The machine will manufacture products layer by layer according to the program. [0003] In the printing process of existing 3D printers, due to the small nozzle aperture of the nozzle, blockages often occur, and the printer is usually equipped with only one printing nozzle, so it is easy to cause interruption of the printing process, and people also need to unblock the printi...

AI Technical Summary

Problems solved by technology

[0003] In the printing process of existing 3D printers, due to the small nozzle aperture of the nozzle, blockages often occur, and the printer is usually equipped with only one printing nozzle, so it is easy to cause interruption of the printing process, and people also need to unblock the printing nozzle, not only that , the printing accuracy of existing 3D printers is low. The reason is that the layer height of the printed single layer cannot be effectively controlled when the layer-to-layer superposition work is performed, resulting in different layer heights between the layers of the printed sample, which makes the printing The sample appears very rough

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