Electrostatic sand-dispensing machine for multiple grinding materials and manufacturing process thereof

Abstract

The invention relates to an electrostatic sand-dispensing machine for multiple grinding materials and a manufacturing process thereof. The electrostatic sand-dispensing machine comprises more than two groups of grinding material conveying devices, a rolling device and electrode plate groups, wherein the electrode plate groups are arranged within the grinding material conveying devices and the rolling device; and the grinding material conveying devices are arranged below the rolling device. The density of different grinding materials is controlled through placing different grinding materials in different sand-falling hoppers respectively and regulating the sand-falling speed of the corresponding sand-falling hopper and the conveying speed of the grinding material conveying device; and the different grinding materials are uniformly distributed on a substrate through two or more continuous electrostatic sand-dispensing processes. The invention has the characteristics that the grinding material has uniform density distribution, the optimal use state of all grinding materials can be ensured and the grinding efficiency is improved by 30-40%.

Description

technical field [0001] The invention relates to an electrostatic sand planting machine, in particular to an electrostatic sand planting machine with various abrasive materials and a manufacturing process thereof. Background technique [0002] At present, there are two methods of making coated abrasives, one is to use gravity sand planting; the other is to use electrostatic sand planting. If the coated abrasive needs to be made with a variety of mixed abrasives, it is generally made by mixing a variety of abrasives and then using gravity + electrostatic sand planting. For example, Chinese Patent Document No. CN201338234 disclosed a composite sand-planting coated abrasive tool on November 4, 2009, including a base material, on which a primer layer is set, and it is characterized in that gravity sand-planting is arranged successively above the primer layer layer and electrostatic sanding layer. Coated abrasive tools made by composite sand planting technology. However, the ab...

AI Technical Summary

Problems solved by technology

However, the abrasive tools made by this method have a large random density variation among various abrasives, and it is impossible to guarantee that all abrasives are in the best use state (abrasives are in a vertical state)

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