Three-dimensional printing system for electrostatic drawing wires

Abstract

The invention belongs to the technical field of material printing and three-dimensional forming. The whole set of a three-dimensional printing system for electrostatic drawing wires comprises the following parts: (1) a material extruding device; (2) changeable printing nozzles; (3) a high-voltage electric field controlling device; (4) a three-dimensional mobile platform; (5) an environment controlling device; (6) a nozzle auxiliary heating device; and (7) a camera and a light source. Different from a traditional printing method with droplet generation as the purpose, according to the three-dimensional printing system disclosed by the invention, a high-voltage electric field is directly utilized to be matched with auxiliary means such as pneumatic extrusion, three-dimensional collection and environment controlling, and a continuous filament-shaped material is directly generated to carry out printing; under the condition with the adoption of the nozzles in the same size to work, as the size of a printed product is far smaller than that of a printed product prepared by virtue of a traditional ink jetting and melt extrusion method, the forming accuracy can be improved by above one order, and the nozzles can not be blocked; by virtue of three-dimensional linkage, precision three-dimensional printing staking formation can be carried out on the material.

Description

technical field [0001] The system can be used for high-precision, non-destructive and fast 3D printing for a variety of materials; [0002] It can be applied to the rapid preparation of tissue engineering and the personalized three-dimensional modeling of artificial tissues (vascular, cartilage, etc.); [0003] It can be used for 3D printing of biomaterial scaffolds, rapid preparation of biochemical chips, printing of cell culture media, etc. Background technique [0004] Currently commonly used printing techniques are extrusion molding, inkjet printing process and electrostatic spray printing. Among them, the liquid is directly extruded during extrusion molding and inkjet printing without applying a high-voltage electrostatic field, and the resulting product is a liquid droplet with a size similar to or slightly larger than the pipe diameter. (b) During electrostatic spray printing, although a high-voltage electrostatic field is applied and extrusion pressure is not requi...

AI Technical Summary

Problems solved by technology

At the same time, the problem that the traditional printing technology cannot load the active unit needs to be solved urgently.

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