Working method of mixer of melt extrusion type color 3D printing head

Abstract

The invention discloses a working method of a mixer of a melt extrusion type color 3D printing head. The mixer adopted in the method comprises a mixing support, a heating block arranged in the mixing support, heating bars inserted into the heating block, a primary mixing bin fixed to the bottom of the heating block, a secondary mixing bin arranged at the bottom of the primary mixing bin and heat preservation bars inserted into the secondary mixing bin. Symmetric inclined faces are arranged on the mixing support, and piezoelectric ceramic twin lamellas are fixed to the symmetric inclined faces. The secondary mixing bin comprises vibration attenuation feeding pipes, an array mixing ring and a discharging opening. The upper ends of the two vibration attenuation feeding pipes communicate with the bottom of the primary mixing bin, and the lower ends of the two vibration attenuation feeding pipes are connected with the upper portion of the array mixing ring. The bottom of the array mixing ring is connected with the discharging opening. According to the working method, molten three-primary color materials can be fully mixed, and therefore material colors pure in color are blended, and the printing precision cannot be influenced in the mixing process.

Description

[0001] This application is a divisional application with an application date of June 19, 2015 and an application number of 201510344266.2. The invention name is a mixer for a melt extrusion color 3D printing head. [0002] 【Technical field】 [0003] The invention relates to the technical field of three-dimensional molding, in particular to a mixing driving mechanism of a melt extrusion color 3D printing head. [0004] 【Background technique】 [0005] Fusion Extrusion Molding (FDM) is a widely used three-dimensional molding technology. Its working principle is to heat and melt the material, extrude it from the print head through the extrusion mechanism, and rapidly cool and solidify it. This technology was only used in the early stage of application. Limited to single-color material molding, so the color types of printed objects are monotonous, and the color selection is limited by the color of the material. With the continuous development of technology, people later developed a...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to solve the problem that the color of the object printed by the existing melt extrusion color 3D printing head is not pure, and propose a device for fully mixing materials for the melt extrusion color 3D printing head, which can make the melted three primary colors The material is fully mixed, so that the pure color of the material can be prepared, and the mixing process will not affect the printing accuracy

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