High precision metal separator

Abstract

The invention discloses a high precision metal separator, comprising a detector module, a signal processing module, an execution module and a raw material transmission channel, wherein the detector module comprises a sensor and a sinusoidal signal generator; the sensor comprises an inner barrel, a coil and a magnetic-conducting layer; the signal processing module comprises a single chip microcomputer, amplifying circuits and a differential amplifier; the single chip microcomputer is electrically connected with an input end of the sinusoidal signal generator; the coil of the sensor is connectedwith one of the amplifying circuits; two amplifying signals are input into the differential amplifier connected with the single chip microcomputer; the raw material transmission channel comprises a feeding hole, a separating channel, a honest material channel and an oblique metal channel; the execution module comprises an electromagnetic valve and a baffle plate; the electromagnetic valve is electrically connected with the single chip microcomputer. When a material mixed with metal impurities passes through the coil of the sensor, an alternating magnetic field is disturbed, interference signals are amplified and then processed by means of the single chip microcomputer, and the electromagnetic valve of the execution module is enabled to control the action of the baffle plate, so that metalimpurities are reliably sorted out. The high precision metal separator is convenient to use and high in efficiency.

Description

technical field [0001] The invention relates to a metal separator, in particular to a high-precision metal separator for separating fine metal impurities from plastics in industrial production. Background technique [0002] Most of the processing equipment used in the industrial production process is expensive, and the production raw materials are often mixed with some metal materials. Due to the existence of these metal materials with high hardness and good ductility, the processing equipment is often damaged during the production process, and sometimes even The production line is stopped or paralyzed, which affects the production progress of the enterprise, increases the production cost, and reduces the economic benefits. In the production line, it is necessary to separate the metal substances mixed in the raw materials in time to protect the downstream mechanical equipment from metal damage, such as protecting the screw and barrel of the injection molding machine or extru...

AI Technical Summary

Problems solved by technology

Although it provides a separator that can separate metal and non-metallic materials with similar volumes, which improves the separation efficiency to a certain extent and reduces the labor intensity of workers, there are shortcomings in this metal separator: first, It can only separate metals and non-metallic materials with similar volumes, but cannot separate small metals, and the separation accuracy is not high; secondly, it basically adopts a mechanical structure, which is more complicated in structure, and can only separate ferrous metals that can be attracted by magnetic strips , cannot be separated from other metalloids, and the separation efficiency is relatively low

However, since the rotation of the separation plate is controlled by an electric motor, on the one hand, the cost of this type of motor is high, and on the other hand, the service life is short, which affects the service life of the metal separator and increases the maintenance cost.

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