A 3D printer for easy cleaning of nozzles and method of using the same

Abstract

The invention relates to the field of 3D printer nozzles, in particular to a 3D printer convenient for cleaning nozzles and a method for using the same, comprising a bottom plate, a heating and feeding device, a moving mechanism, an anti-blocking nozzle mechanism and a backflow mechanism. This kind of 3D printer, which is easy to clean the nozzle, drives the heating sleeve and the helical blade to rotate through the cooperation of the transmission gear and the inner gear ring, so that a negative pressure is formed in the return sleeve, so that the molten material in the heating chamber enters the return sleeve through the return hole. After the shutdown, the excessive material in the heating chamber is cooled, condensed and blocked. When it is used again, the heating sleeve heats the material, the reversed spiral blade pushes the material back to the return hole, and the material entering the heating chamber is reheated. The heating efficiency and quality of the end are improved, and there is no need to wait for the long heating and feeding of the heating feeding device, which effectively reduces the waiting time for mechanical operation. Block the discharge hole.

Description

technical field [0001] The invention relates to the field of 3D printer nozzles, in particular to a 3D printer convenient for cleaning nozzles and a method for using the same. Background technique [0002] 3D printing technology is based on the computer three-dimensional design model, through the software layered discrete and numerical control molding system, using laser beams, hot melt nozzles and other methods to deposit and stick metal powder, ceramic powder, plastic, cell tissue and other special materials layer by layer. At present, most household 3D printers are FDM fusion deposition molding printing. During the printing process, the heating rod is heated and melted into a filamentous material, and the nozzle moves along the trajectory set by the computer. The melted filamentous material is extruded from the nozzle, and the material solidifies quickly after being ejected, and bonds with the surrounding material. [0003] The following problems in the prior art have no...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a 3D printer that is easy to clean the nozzle and its use method, so as to solve the problem that more printing raw materials will remain in the nozzle after the printing is completed, which will affect the next use after curing. The material remaining in the hole will block the nozzle and it is difficult to handle, and the impurities in the melted material will easily block the nozzle, and the existing nozzle is not easy to disassemble.

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