Submicron-precision multi-pin direct writing type 3D printer

Abstract

The invention provides a submicron-precision multi-pin direct writing type 3D printer comprising material cylinders, a nanoscale-locating-precision three-axis platform, a glue dispensing machine and aprinting platform. Print pins are arranged at the front ends of the material cylinders. The glue dispensing machine is connected with the material cylinders through gas pipes. The nanoscale-locating-precision three-axis platform comprises a X-axis displacement platform, a Y-axis displacement platform and Z-axis displacement platforms. The X-axis displacement platform and the Y-axis displacementplatform are used for adjusting the position of a print platform. The material cylinders are installed on the Z-axis displacement platforms and can move up and down along with the Z axis. Imaging systems following the filament discharging process and printing process of submicron-scale printing pins are arranged above the material cylinders on the Z-axis displacement platforms. Each imaging systemcomprises a CMOS camera, a telecentric lens and an objective lens. Compared with the prior art, the submicron-precision multi-pin direct writing type 3D printer adopts capillary glass micro-pins as printing pins and combines the nanoscale-precision locating platform, the multi-material-cylinder structure, a laser calibrator and the imaging systems, so that high-precision multi-material printing can be achieved.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to a multi-needle direct-write 3D printer with submicron precision. Background technique [0002] 3D printing technology is a rapid prototyping additive manufacturing technology. 3D printing technology converts a three-dimensional model into a digital model, slices or plans a path through computer software, and uses powdered metal, plastic, photosensitive materials and adhesive materials. Techniques for constructing objects point by point, line and surface. 3D printing is very different from the traditional mold production process. The biggest advantage of 3D printing is that it can directly generate parts of any shape from computer graphics data without machining or any molds, thus greatly shortening the product development cycle. Improve productivity and reduce production costs. In addition, 3D printing can also print out some complex three-dimensional ...

AI Technical Summary

Problems solved by technology

First of all, due to the lack of high-precision nozzles, the line accuracy of the processable materials is poor, and it is difficult to achieve high-precision manufacturing; secondly, the printer does not have a well-equipped imaging system, which makes it impossible to achieve high-precision calibration and observe the entire printing process. Timely detection of problems in the printing process, the printing success rate is not high; in view of the printing requirements of multiple materials, the current direct-write 3D printers lack the calibration means to switch between different materials, so that it is impossible to accurately achieve high-precision multi-material printing

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