Stirring screen for powder metallurgy raw materials

Abstract

The invention relates to a stirring screen for powder metallurgy raw materials. The stirring screen comprises a vibrating screen body fixed on a machine frame. The vibrating screen body comprises a supporting ring and a separating screen, wherein the supporting ring is fixedly connected with the machine frame; the edge of the separating screen is fixedly connected with the inner wall of the supporting ring; the separating screen is made of elastic metal wires; and a driving block is fixed to the middle of the separating screen. A driving plate is arranged at the lower end of the vibrating screen body; the driving plate is a hemispherical plate corresponding to the hemispherical outline of the separating screen; fibers are densely distributed in the hemispherical plate; a discharging pipe is connected with the middle of the driving plate; a hammering block corresponding to the driving block is further arranged in the position, corresponding to the middle portion of the driving plate, of the end of the discharging pipe; a crankshaft is connected with the bottom of the discharging pipe through a connecting rod; and the discharging pipe is driven by the driving plate to move vertically. A guiding sleeve is fixedly connected with the periphery of the driving plate coaxially; the inner wall of the guiding sleeve is slidably connected with the outer wall of the supporting ring; and an annular limiting ring is further arranged at the end of the guiding sleeve.

Description

technical field [0001] The invention relates to a powder metallurgy raw material stirring screen, which belongs to the field of powder metallurgy. Background technique [0002] Powder metallurgy is a process technology for producing metal powder or using metal powder (or a mixture of metal powder and non-metal powder) as raw material, forming and sintering to manufacture metal materials, composite materials and various types of products. Therefore, powder metallurgy also has high requirements for the particles of raw material powder. If the particles are too large, the surface of the product will be rough, which will affect the quality, and the bonding force between the particles will also deteriorate, which will affect the performance of the product. Traditional vibrating screens It is easy to block the material. After a long time of use, it needs to be shut down for maintenance, and the filtration efficiency is low. Contents of the invention [0003] The technical probl...

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Problems solved by technology

Therefore, powder metallurgy also has high requirements for the particles of raw material powder. If the particles are too large, the surface of the product will be rough, which will affect the quality, and the bonding force between the particles will also deteriorate, which will affect the performance of the product. Traditional vibrating screens It is easy to block the material. After a long time of use, it needs to be shut down for maintenance, and the filtration efficiency is low.

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