Multi-material mixing powder feed device for 3D printing equipment and method thereof

Abstract

The invention belongs to the technical field of 3D printing, and particularly discloses a multi-material mixing powder feed device for a 3D printing equipment and a method thereof. The multi-materialmixing powder feed device comprises at least two groups of movable hoppers, powder storage tanks, power devices, powder feed devices, and an electronic control system.Each movable hopper is slidably connected to guiding railsin the same direction,theguiding rails arearranged on a frame, and the movable hoppers are arranged abreast in the sliding direction of the hoppers; each movable hopper comprises at least two hoppers arrangedabreast perpendicular to the sliding direction of the movable hoppers; the middle portion of the guiding rails is a working portion; the powder storage tanks are usedfor providing powder materials for all hoppers, and the power devices are used for driving movable hoppers to slide; when the movable hoppers slide to the working position, the powder feed devices arebutt-jointed with outlets of the bottoms of all hoppers correspondingly and are suitable for providing powder materials to powder scrapers; the electronic control system is electrically connected tothe power device and the powder feed devices. According to the multi-material mixing powder feed device for a 3D printing equipment and the method thereof, multi-material individually or synchronouslypowder sending can be achieved, a mixing powder feed function for a multi-material randomly combined method can also be achieved, adaptability is more wide, and the multi-material mixing powder feeddevice for the 3D printing device and the method thereof are beneficial for improving the machining efficiency.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a multi-material mixing powder feeding device and a method thereof for 3D printing equipment. Background technique [0002] 3D printing (additive manufacturing), also known as rapid prototyping, is a manufacturing technique that builds three-dimensional objects by continuously fusing more than one thin layer of material. Powder bed additive manufacturing is a kind of additive manufacturing technology route, in which the efficiency of the powder feeding device will affect the efficiency of the entire process. The existing powder leakage device adopts the powder feeding method of a single hopper. When the product to be formed is When multiple materials are composed, it is impossible to realize multi-material synchronous or mixed powder feeding. After completing the powder feeding process of one material, it is necessary to replace the powder storage device with another material...

AI Technical Summary

Problems solved by technology

Powder bed additive manufacturing is a kind of additive manufacturing technology route, in which the efficiency of the powder feeding device will affect the efficiency of the entire process. The existing powder leakage device adopts the powder feeding method of a single hopper. When the product to be formed is When multiple materials are composed, it is impossible to realize multi-material synchronous or mixed powder feeding. After completing the powder feeding process of one material, it is necessary to replace the powder storage device with another material to continue the powder feeding process. This type of single hopper The powder feeding method greatly reduces the processing efficiency and is not conducive to mass production

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