Uniform-distribution screening device for copper-based powder

Abstract

The invention provides a uniform-distribution screening device for copper-based powder, and relates to the field of copper-based powder production. The uniform-distribution screening device comprisesa screening tube; a feeding tube is arranged at the top end of the screening tube, and the position at the bottom end of the feeding tube is rotationally connected with a feeding device; the feeding device comprises a power mechanism, and the power mechanism is in transmission connection with the screening tube through a first transmission mechanism; the power mechanism is in transmission connection with a distributing mechanism through a second transmission mechanism; the distributing mechanism comprises a distributing pipe communicating with the feeding tube, the bottom side of the distributing pipe is provided with a transverse incision parallel to the axis of the distributing pipe, and the position below the transverse incision is provided with a rolling wheel in rolling connection with the distributing pipe; and a guiding belt is wound on the rolling wheel. According to the uniform-distribution screening device, while the distributing mechanism is rotated, the distance between thedischarging end and the central axis of the feeding tube can be continuously changed, thus powder materials continuously entering the feeding tube uniformly fall on a screen net, and the situations that the screen net is locally stacked with the materials, consequently the screen net is blocked, or the utilization rate of the screen net is insufficient, and the screening efficiency is low are avoided.

Description

technical field [0001] The invention relates to the field of copper-based powder production, in particular to a copper-based powder uniform distribution screening device. Background technique [0002] Copper-based powders are widely used in powder metallurgy, electric carbon products, electronic materials, metal coatings, chemical catalysts, filters, heat pipes and other electromechanical parts and electronic aviation fields. Copper-based powders are mostly prepared by electrolysis or atomization method, since the quality of copper-based powders is differentiated according to particle size after production, it is necessary to sieve after uniform preparation. [0003] Patent No. CN205182943U discloses a multiple powder screening machine with electromagnetic separation function, including powder collection system, electromagnetic separation system and rotary separation system, the conveying channel is set in the conveying pipe, and the powder conveying drive The machine is ar...

AI Technical Summary

Problems solved by technology

[0004] However, in the copper-based powder screening device, the material enters the screening cylinder with a larger diameter only through a smaller feed pipe, and the powder is covered with the entire screen through vibration, mechanical paving or natural flow. If there is too much powder in the middle of the screen and less powder at the edge, the effective screening area of ​​the screen cannot be fully utilized, and the screening efficiency is low.

Images