A conveying device for metal mixed powder

Abstract

The invention discloses a conveying device for metal mixed powder, which relates to the field of 3D printing, and includes a first funnel and a second funnel for holding metal powder, and the lower ends of the first funnel and the second funnel are respectively connected with a first supply material pipe and the second feed pipe, the first feed pipe and the second feed pipe are respectively provided with a first drive system and a second drive system at one end, the first feed pipe and the second feed pipe are respectively provided with a first The piston and the second piston, the first drive system and the second drive system are respectively connected to the first piston and the second piston, and the other ends of the first feed pipe and the second feed pipe are respectively provided with a first discharge port and a second feed pipe. The discharge port, the first discharge port and the second discharge port are set opposite to each other and communicated through the powder leakage pipeline. The powder leakage mechanism is provided at the outlet of the powder leakage pipeline. tank, the present invention saves more powder and ensures the stability of the whole process.

Description

technical field [0001] The invention relates to the field of 3D printing, in particular to a conveying device for metal mixed powder. Background technique [0002] In recent years, 3D printing has developed rapidly, and with the continuous expansion of application fields, it has attracted more and more attention from all parties. With the promulgation of various favorable policies of the country, additive manufacturing has also been favored by capital. In the foreseeable future, the field of additive manufacturing is bound to usher in explosive growth. Additive manufacturing is an advanced digital manufacturing technology, which can quickly manufacture parts with complex geometric shapes based on CAD models. Additive manufacturing technology integrates modern scientific and technological achievements such as CAD technology, numerical control technology, laser technology and material technology, and is the development direction of advanced manufacturing technology in the fut...

AI Technical Summary

Problems solved by technology

[0004] At present, there are two kinds of feeding devices for selective laser melting technology, one is powder feeding by material cylinder, and the other is feeding by rotating drum, but neither can achieve the practical effect of accurate feeding and saving metal powder as much as possible , and most of the metal powders of one material are used at present. In the actual molding process in the future, metal powders of mixed materials may be involved. The current two feeding devices need to add a powder mixing and stirring device before feeding. , will occupy a huge equipment space, therefore, there is a need for a conveying device that improves the utilization rate of the powder, ensures a stable and accurate conveying process, and can realize simultaneous feeding of multiple groups of powders

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