Metal 3D printing machine spraying head device

Abstract

The invention mainly relates to a metal 3D printing machine spraying head device and belongs to the field of 3D printing machine equipment. The metal 3D printing machine spraying head device comprisesa loading assembly. A printing head assembly is arranged on the lower side of the loading assembly. An extruding machine assembly and an air cylinder assembly are arranged on a printing head. The loading assembly, the printing head assembly, the extruding machine assembly and the air cylinder assembly are connected with a wire material bar in a penetrating manner. The metal 3D printing machine spraying head device is simple in structure and convenient to operate, the temperature can be adjusted according to practically used wire types, and therefore different types of wire material bars can be printed. Power for sending material bars of a material cylinder is provided through an automatic feeding manner of a coil spring. A double-motor spring pre-pressing device is adopted so that materials can be prevented from being clamped in a gear in the wire feeding process. Admittance and driving force of the material bars in the material bar supplementing process are provided through a rotating clamping air cylinder. A winding wire, an air pipe and a large number of wear-resisting heat insulation materials are used in the printing head device so that a guarantee can be provided for ultra-high-temperature fast heating, cooling and heat insulating in the metal printing process, and practicability of the 3D printing machine spraying head is greatly improved.

Description

technical field [0001] The invention belongs to the field of 3D printer equipment, and mainly relates to a nozzle device of a metal 3D printer. technical background [0002] As a kind of rapid prototyping technology, 3D printing 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. [0003] 3D printing is usually achieved using digital technology material printers. It is often used to make models in the fields of mold manufacturing and industrial design, and is gradually used in the direct manufacture of some products. There are already parts printed using this technology. Because 3D printing technology can quickly produce high-end customized products, and can generate almost arbitrarily complex parts without molds and tools, it greatly improves production efficiency and manufacturing flexibility. As a result, 3D printing technology has applications in jewelry, footwear, ...

AI Technical Summary

Problems solved by technology

However, the common metal 3D printer system and structure are complicated, expensive, and the material powder is also expensive. It is difficult for ordinary developers to use metal printing. Therefore, the current metal 3D printers have high access to the market and are difficult to popularize.

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