A powder spreading device for full-color powder 3D printing

Abstract

The invention discloses a powder spreading device for full-color powder 3D printing. The pushing assembly for material compaction and the powder spreading assembly for spreading. The storage assembly includes a storage box for storing powder materials, two sets of feeding pipes for feeding, and a set for cutting off or connecting discharge. The electric gate valve and the material guide pipe for discharge, the moving assembly includes a support frame for support, two sets of chutes and two sets of sliders for guiding and limiting, and a forward and reverse drive for driving A motor and a ball screw used to connect with the material storage box, the pushing assembly includes an electric push rod for providing power, a briquetting block for compacting the powder material, and several pushing rods for pushing the material. The invention conveniently realizes loosening of the powder material and extrusion after injection, avoids material blocking and enhances the compactness of the powder material inside the printing tank.

Description

technical field [0001] The invention relates to the technical field of 3D printing powder spreading, in particular to a powder spreading device for full-color powder 3D printing. 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. The working principle of 3D printer is basically the same as that of ordinary printer. It is to superimpose "printing materials" layer by layer through computer control. , and finally turn the blueprint on the computer into a physical object. This technology is often used in mold manufacturing, industrial design and other fields to make models or for direct manufacturing of some products. There are many 3D printing technologies. 3D printing of junction materials, 3D printing of photocuring materials and 3D printing of molten materials. [0003] As a kind of printing, full-color 3D printing generally uses gypsum pow...

AI Technical Summary

Problems solved by technology

[0004] The current powder spreading generally drives the storage box to move through the driving device, so that the lower part of the storage box is docked with the upper part of the printing tank, so that the materials inside the storage box fall into the upper part of the printing tank, and then the storage box is driven by the driving device. The material box is spread from the upper part of the printing tank by using the rollers on the side of the material storage box to complete the material spreading. However, the inside of the existing material storage box generally lacks the stirring of the material, which is prone to material jamming, which is not conducive to Use, on the other hand, lack of extrusion after paving, resulting in loose paving, which is not conducive to subsequent printing

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