Automatic sampling apparatus for rare earth magnetic powder

Abstract

The invention relates to a rare-earth magnetic powder automatic sampling device arranged on a jet mill, which belongs to the technical field of rare-earth magnetic powder processing components. The device is characterized in that the device consists of hoppers, a feed box, a sampling mechanism, a pneumatic driving mechanism and the like. One end of the upper hopper and one end of the lower hopper are arranged on the rare-earth magnetic powder processing jet mill, while the other ends are correspondingly connected with the upper side and the lower side of the hollow, closed and cuboid feed box; the middle part of the feed box is provided with a sampling disk of the sampling mechanism and a sealing plate, and the lower position of the middle part of the feed box is correspondingly provided with a sampling funnel; the pneumatic driving mechanism consists of polish rods, a groove-shaped base, a piston inner cylinder, a piston rod, a cylinder I and a cylinder II; two polish rods are fixed on the groove-shaped base; the cylinder I is fixed on one end of the groove-shaped base, connected with the two polish rods through a connecting plate and fixes the piston inner cylinder, and the other end of piston inner cylinder is connected with the sampling disk; the other cylinder II is connected with the two polish rods through a connecting plate and fixes the piston rod, and the other end of the piston rod is connected with the sealing plate; and all the mechanisms are controlled by a PLC to act in sequence. The device solves the problems of large labor intensity, low working efficiency, and poor representation of the magnetic powder samples caused by manual sampling. The device has the advantages of novel and reasonable structure, convenient operation and good sampling precision and can automatically collect rare-earth magnetic powder samples in argon gas atmosphere at regular time and in equal proportion.

Description

technical field [0001] The invention relates to a rare earth magnetic powder automatic sampling device installed on a jet mill, belonging to the technical field of rare earth magnetic powder processing components. Background technique [0002] As we all know, at present, the samples of rare earth magnetic powder are collected by manual sampling, that is, in the process of rare earth magnetic powder transportation, the rare earth magnetic powder samples are taken manually with a spoon from the rare earth magnetic powder flow. The sampling frequency is frequent, not only labor intensive, but also manual sampling. When the rare earth magnetic powder sample and the rare earth magnetic powder flow in the hopper come into contact with the air, it will be oxidized, and there is a danger of burning or explosion. After being oxidized, the performance of the rare earth magnetic powder has obviously changed, and its accurate parameters cannot be measured. Sampling is poorly representat...

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Problems solved by technology

[0003] In order to overcome the deficiencies in the artificial sampling technology of rare earth magnetic powder in the existing rare earth magnetic powder production, the present invention provides a newly installed jet mill in argon atmosphere A device for automatically collecting rare earth magnetic powder in equal proportions

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