Design And Research Of A Servo Electrostatic Powder Spraying System

The electrostatic powder spraying technology has been used extensively in the coating industry.Different from the traditional painting process,painting powder is a kind of solid without volatile harmful substances.The powder coating can be attached to the top of stock by electrostatic effect,then the film is formed after melting solidification of high temperature.The film thickness is uniform,and its surface is smooth and neat,the quality and performance are also better than solvent coating.The surplus powder in spraying process can be collected and recycling,so the utilization rate of powder can be over 98%.There is no doubt that electrostatic powder coating technology is more green,safe,economic and efficient.Chinese Small and Medium Enterprises is of low automation degree,in the spraying process,workers usually adopt manual spraying way so that they are surrounded by the toxic powder which may have a significant impact on health.And the qualities of film vary greatly between workers.This study aimed to investigate the electrostatic powder spraying on security door by designing a servo electrostatic spraying equipment to complete spraying and handling the workpieces concurrently.The main research contents of the thesis include:1.According to the construction requirements of enterprises,on the basis of consulting a lot of literature and on field research of production enterprises,a reasonable design scheme of electrostatic powder spraying equipment is proposed;2.On the basis of the reasonable planning of spraying line,according to the spray action,running stability requirements,determine the consists of synchronous belt,ball screw as the main drive mode of spraying system.The design calculation and detailed structure design of the mechanical structure of the equipment were completed,and the dustproof structure design of the powder room was put forward,and the three-dimensional model of the equipment was established in the UG environment;3.On the basis of the completed mechanical structure,the finite element analysis and optimization design were used to the key parts of the equipment by ANSYS Workbench to optimize the relevant dimension and structural shape under a sufficient strength and rigidity premise.Thus,the comprehensive properties of the equipment were improved greatly;4.Based on the operation and performance requirement of the device,the overallcontrol system scheme is designed,control diagram designing,hardware selecting and software programming were completed.