Extrusion nozzle for 3D color printer

A 3D printer and nozzle technology, applied in the direction of additive processing, etc., can solve the problem of color 3D printing color difference that is difficult to achieve single nozzle color printing

Active Publication Date: 2016-04-13
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a color 3D printer extrusion nozzle that solves the problems of current 3D printers that are difficult to achieve color printing with a single nozzle and color difference in color 3D printing.

Method used

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  • Extrusion nozzle for 3D color printer
  • Extrusion nozzle for 3D color printer
  • Extrusion nozzle for 3D color printer

Examples

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Embodiment Construction

[0019] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0020] combine Figure 1~4 , an extrusion nozzle of a color 3D printer in the present invention, comprising a small gear 1, a large gear 2, a nozzle 3, a heat-resistant glass 4, a micro stirring rod 5, a rotary sleeve 6, a retaining ring 7, a resistance wire heater 8, a screw Column I9, water cooling tube 10, throat 11, feeding assembly I12, stud II13, laser heater 14, laser head 15, feeding assembly II16, feeding assembly III17, temperature detector 18, motor bracket 19, stepper The motor 20, the tapered mixing chamber 21, the nozzle 3 are provided with a through hole 22, a flow channel I23, an annular groove 24, a flow channel II25, and a flow channel III26.

[0021] The feed components I-III, the motor bracket 19 and the resistance wire heater 8 are installed on the rotary mixing nozzle assembly, and the laser heater 14 is installed on the motor bracket 19 . ...

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PUM

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Abstract

The invention aims at providing an extrusion nozzle for a 3D color printer. The extrusion nozzle comprises a nozzle assembly. The nozzle assembly comprises a nozzle, a rotary sleeve, a bull gear, a pinion and a stepping motor. The rotary sleeve is installed outside the nozzle and located through an annular protrusion on the rotary sleeve. A conic mixing cavity is formed between the portion below the nozzle and the rotary sleeve. The nozzle is arranged below the conic mixing cavity. The bull gear is installed at the outer portion of the rotary sleeve through an elastic check ring. The pinion is engaged with the bull gear. The stepping motor fixed to a motor support is connected with the pinion. The motor support is fixed to the nozzle. An annular groove, a runner I, a runner II and a runner III are formed in the nozzle. The runner I, the runner II and the runner III are all communicated with the conic mixing cavity. A resistance wire heater is installed in the annular groove. A feeding assembly I, a feeding assembly II and a feeding assembly III are installed outside the runner I, the runner II and the runner III respectively. By the adoption of the extrusion nozzle, the problems that single-nozzle color printing of an existing 3D printer is difficult to achieve and chromatic aberration exists in the 3D color printing process are solved.

Description

technical field [0001] The invention relates to a 3D printer, in particular to a nozzle structure of the 3D printer. Background technique [0002] 3D printing (3DP) is a kind of rapid prototyping technology. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. According to the different molding methods and available materials, it can be divided into selective laser sintering (SLS), fused deposition modeling (FDM), stereolithography (SLA) and layered manufacturing (LOM). Among them, fused deposition modeling (FDM) ) has the advantages of high material utilization rate, low material cost, many types of optional materials, and simple process. FDM has developed rapidly and has been widely used. [0003] For 3D printers based on the principle of FDM, the current mainstream materials are PLA and ABS plastic wires. Most 3D printers on the market can only achieve single-color ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B33Y30/00
Inventor 邢晓冬张弘治张红玉赵宿辰周秋雨范鹏宇
Owner HARBIN ENG UNIV
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