Powder patting and falling device of full-automatic pressure-free magnetic powder forming machine

Abstract

The invention provides a powder patting and falling device of a full-automatic pressure-free magnetic powder forming machine. The powder patting and falling device comprises an air patting device and a powder falling forming device; the air patting device comprises a material box screen, a powder distribution material box, a powder patting device die cavity and an air patting film; and the powder falling forming device comprises a fixed upper plate, a movable frame, a movable pressing plate, a tightening air cylinder, a mold pressing plate, a tightening buffering supporting plate, a fixed bottom plate, a standard air cylinder, a stable air cylinder and the like. Magnetic powder in the powder distribution box is flapped by the surface plate at high frequency and uniform force of the air flapping device and then uniformly falls into the magnetic powder forming mold through the material box screen, and then the magnetic powder in the magnetic powder forming mold is repeatedly fallen from a high place at the acceleration of gravity by the powder falling forming device for several times, so that the magnetic powder is formed into magnetic powder body. The density of the upper part and the lower part of the magnetic powder body is consistent and uniform, and the overall filling density of the magnetic powder is highly uniform. The problem that in the prior art, the density of magnetic powder body filled in a mold (namely the powder distribution box) is not uniform is solved.

Description

technical field [0001] The invention relates to the technical field of magnetically anisotropic rare earth sintered magnets, in particular to a powder-beating and dropping device of a fully automatic pressureless magnetic powder forming machine. Background technique [0002] In the traditional pressure-free manufacturing method of thin-plate rare earth sintered magnets, the powder supply method is usually to set a vibrator at the outlet of the magnetic powder storage tank to knock the magnetic powder storage tank, so as to crush the magnetic powder; the storage tank Under the vibration of the vibrator at the discharge port, the magnetic powder in the barrel falls into the weighing and quantitative tipping bucket material box. After reaching the set weight, the storage bucket discharge port is closed; the tipping bucket material box is equipped with a powder falling oscillator, and the tipping bucket material The box is turned over, the magnetic powder is poured into the feed...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fully automatic non-pressure magnetic powder forming machine for powder tapping and dropping, which mainly solves the problem of the upper and lower parts of the magnetic powder filled in the mold (that is, the powder distribution box (M301)) existing in the above-mentioned prior art. There is a problem of differences in the density of the magnetic powder, and a fully automatic pressure-free magnetic powder molding machine is provided. The powder falling device

Images