Self-rolling 3D printing integrated sprayer device capable of being used for material extrusion molding

Abstract

The invention discloses a self-rolling 3D printing integrated sprayer device capable of being used for material extrusion molding. The self-rolling 3D printing integrated sprayer device comprises a printing nozzle. The printing nozzle is fixed to the outer portion of the tip end of a sprayer shell through a nozzle fixing bolt. A ball is arranged in the tip end of the sprayer shell. The upper portion of the ball is connected with the lower end of a spring. The upper end of the spring is connected with a positioning bolt. The positioning bolt is installed at the upper end of the interior of the sprayer shell. The positioning bolt is matched with an inner threaded hole in the sprayer shell. The ball is limited at the position of the tip end of the sprayer shell through the spring so that it can be ensured that the ball can rotate flexibly. After a printing material in a molten state is led in, the printing material is extruded out through the printing nozzle and is strengthened under extrusion of the ball. Elastic force of the spring can be changed by adjusting positioning bolts at different heights, and therefore the ball can obtain the effects of extrusion force of different degrees according to different materials and demands. By means of the self-rolling 3D printing integrated sprayer device capable of being used for material extrusion molding, interlayer performance and all boundary performance improving can be better carried out on a forming face.

Description

technical field [0001] The invention relates to the technical field of 3D printing for extrusion molding of materials, in particular to a self-rolling 3D printing integrated nozzle device that can be used for extrusion molding of materials. Background technique [0002] 3D printing technology refers to the fact that the print head performs material filling and manufacturing according to the cross-sectional information of the current layer under the control of the program, and then quickly manufactures the required parts through layer-by-layer accumulation. Because it can manufacture arbitrary complex parts and has better printing freedom It has more and more practical application value in industrial production and daily life. [0003] At present, extrusion forming 3D printing is still a crucial printing method in the field of 3D printing, especially for light structural materials such as plastics, extrusion forming is a printing method that is difficult to replace for a long...

AI Technical Summary

Problems solved by technology

[0004] 1. The poor bonding performance between layers makes extrusion 3D printing parts still difficult to popularize in related application fields, and this weak link is even difficult to match in many cases. It is obvious through continuous fiber printing or short fiber pre-impregnation Improved in-layer print strength

[0005] 2. The traditional extrusion printing nozzle only produces a very small surface pressure on the printing surface when the material is extruded, so it can neither improve the interlayer bonding performance through effective pressure, nor can it guarantee the overall quality of the printed part. Bulk density and multi-interface properties, which also present a thorny problem for extrusion 3D printing

Images