Solid material and liquid material combined dual-nozzle 3D printer and printing method thereof

A 3D printer and dual-nozzle technology, applied in the field of 3D printing, can solve the problems of scratching the model, affecting the printing quality, and scratching the printing model by the nozzle

Pending Publication Date: 2019-12-27
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, whether it is a single-nozzle, double-nozzle or multi-nozzle design, most of the existing extrusion 3D printers only print a single type of material, such as using an FDM printer to print thermoplastic materials or using an LDW printer to print liquid materials. Simultaneously print composite objects containing thermoplastic solid materials and liquid materials, such as liquid silicone objects with plastic support structures or biomaterial objects with elastomeric skeleton structures, etc.
Moreover, most of the nozzle positions and nozzle heights in the prior art are fixed, and this traditional design will bring some problems: when a single nozzle moves rapidly in the non-printing area, its nozzle will often scratch the printed model, double nozzles or In the case of multiple nozzles, because the height of each nozzle is the same, when one nozzle is working, other nozzles will scrat

Method used

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  • Solid material and liquid material combined dual-nozzle 3D printer and printing method thereof
  • Solid material and liquid material combined dual-nozzle 3D printer and printing method thereof
  • Solid material and liquid material combined dual-nozzle 3D printer and printing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Such as Figure 1-4 As shown, a solid-liquid material combined dual-nozzle 3D printer includes a frame 1, an XY plane movement module 2, a Z-axis movement module 3, a loading plate 4, a solid material printing unit 5, a liquid material printing unit 6 and an overall The control module 7; the frame 1 is a square frame structure; the XY surface motion module 2 is installed horizontally on the upper part of the frame 1; the Z-axis motion module 3 is installed on the rear of the frame 1, and the loading plate 4 is installed on the Z-axis motion module 3 On the Z-axis lifting frame 35; the solid material printing unit 5 includes a solid printing head module 51, a wire feeding module 53 and a wire reel 52 equipped with solid wire, and the wire reel 52 is connected with the solid printing head module 51 through the wire feeding module 53; The liquid material printing unit 6 comprises a liquid print head module 61, a pressure cylinder 62 and an air source 63 filled with liquid ...

Embodiment 2

[0106] Different from Example 1, this example uses a thermosetting two-component epoxy resin (DEP) as a liquid material instead of a solid material. Therefore, on the basis of Embodiment 1, this embodiment makes the following changes:

[0107] Such as Figure 8B As shown, a solid-liquid material combined dual-nozzle 3D printer has two pressure cylinders 62, two peristaltic hoses 650, two three-way valve sets 646, and a mixing tube assembly 661 is added to the feeding module 66, Others are identical with embodiment 1;

[0108] Two components A and B of DEP are respectively installed in the pressure cylinder 62A and the pressure cylinder 62B, and communicate with the feed ports 659 of the two three-way valve sets; , and communicate with two three-way valve sets 646 respectively; the two peristaltic hoses 650 are made of the same material, have the same wall thickness, and have the same inner diameter or be adjusted accordingly according to the mixing ratio of the two component...

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PUM

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Abstract

The invention discloses a solid material and liquid material combined dual-nozzle 3D printer and a printing method thereof. The dual-nozzle 3D printer comprises a frame, an XY side moving module, a Zaxis moving module, a carrying plate, a solid material printing unit, a liquid material printing unit and a master control module, wherein the solid material printing unit comprises a solid printing head module and a wire feeding module; the upper end of a wire feeding throat pipe of the solid printing head module penetrates through a fixed plate of a cooling module to communicate with a wire feeding channel in the XY side moving module; and the lower end of the wire feeding throat pipe extends into a circular through hole of a metal heating block to communicate with a solid nozzle. An articlecombining the solid material with the liquid material can be printed, or a solid material article or a liquid material article is individually printed, and dual-component liquid materials are mixedlyprinted, a feeding module and a printing speed of the liquid material are flexibly controlled, and the combined dual-nozzle 3D printer and the printing method are suitable for performing 3D printingon multiple materials comprising a thermosensitive or thermoset liquid material.

Description

technical field [0001] The invention relates to a 3D printing device and a printing method, in particular to a solid-liquid material combined double-nozzle 3D printer and a printing method thereof, belonging to the technical field of 3D printing. Background technique [0002] 3D printing is a rapid prototyping technology that builds objects by printing solid powder, liquid materials or polymer melt materials layer by layer based on digital model files. At present, there are many existing 3D printing technologies, including extrusion molding (fused deposition FDM and liquid direct writing LDW), photocuring molding (laser scanning SLA, projection curing DLP or polymer injection PolyJet) and powder coating molding. (laser sintering SLS / SLM or inkjet bonding 3DP), etc., among which extrusion 3D printing is the earliest and most widely used one. [0003] In the traditional extrusion 3D printing technology, the single-nozzle design is mostly used, and the technology is relatively...

Claims

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Application Information

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IPC IPC(8): B29C64/165B29C64/20B33Y10/00B33Y30/00
CPCB29C64/165B29C64/20B33Y10/00B33Y30/00Y02P10/25
Inventor 侯有军
Owner SOUTH CHINA UNIV OF TECH
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