Circuit board cutting machine and cutting method

Abstract

The invention provides a circuit board cutting machine and a cutting method. The circuit board cutting machine comprises an overall rack. A screw feeding assembly is fixedly mounted on the left side of a workbench at the top of the overall rack. A feeding funnel is mounted at the top of the screw feeding assembly. A low-speed cut-up assembly is arranged in the screw feeding assembly. A high-speed cutting assembly is fixedly mounted on the right side of the workbench and connected with a clearance adjusting device. According to the cutting machine, the manner that only a blade type crusher can be adopted for crushing a circuit board in tradition is changed; the cutting machine can be directly added with water to pass through a cutting disc together with the circuit board for machining and crushing; volatilization of smoke, dust, heavy metal and other hazardous substances is avoided in the crushing process; and environment friendliness is achieved, the cutting efficiency is high, and cost is low.

Description

technical field [0001] The invention belongs to the field of recycling devices for waste circuit boards, and in particular relates to a cutting machine and a cutting method for waste circuit boards. Background technique [0002] At present, with the continuous upgrading of the home appliance market, a large number of household appliances have been replaced and eliminated. There are a large number of circuit boards in household appliances, and the circuit boards contain many rare metals and non-ferrous metals. To recycle these high-value metals, the circuit boards must be processed. Crushed into a thin shape, and then mixed with chemical potions to produce a chemical reaction, the precious metals inside are extracted and recovered. The general-purpose circuit board shredders currently on the market usually have the following defects: (1) High-speed rotating blades are used for shredding, and there is a lot of dust during the shredding process, and the dust is not easy to clea...

AI Technical Summary

Problems solved by technology

The general-purpose circuit board shredders currently on the market usually have the following defects: (1) High-speed rotating blades are used for shredding, and there is a lot of dust during the shredding process, and the dust is not easy to clean; (2) Using a simple blade crushing device for crushing, the crushing efficiency is low, and the desired crushing particle size cannot be achieved, and the crushing is not thorough, which in turn affects the subsequent metal recovery process; (3) The traditional crushing machine is complex in mechanism, cumbersome in operation, and high in cost Large investment is not conducive to large-scale promotion; (4) Since circuit boards are mostly made of organic materials and contain heavy metal elements such as solder, the high temperature generated during the traditional cutting process decomposes these organic materials or heavy metals, generating smoke and dust, which are easily absorbed by the human body , which seriously damages human health; (5) The traditional crushing device also needs to be equipped with a special dust absorption device for dust absorption, which increases the equipment cost and is not easy to install

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