Apparatus used in continuous process for electrostatic coating with pulverized material

摘要

This invention relates to a continuous process for electrostatically coating a substantially axially symmetrical object with pulverized material, characterized by conveying said object by means of a conveyor-type holding device into an electrostatic coating chamber equipped with silent discharge plate electrodes on both sides of the chamber walls: feeding electrically charged pulverized material into said chamber: electrostatically coating said object with said pulverized material by the action of silent discharge from said electrodes: and removing surplus pulverized material from the specific parts of said object by suction. This invention further relates to an apparatus used for continuously electrostatically coating a substantially axially symmetrical object with pulverized synthetic resin, characterized by comprising (i) an electrostatic coating chamber where said pulverized synthetic resin is coated on the surface of said object maintained at a temperature below the melting point of said resin, which object has been conveyed into said chamber by means of a holding device and (ii) a device for removing surplus pulverized resin from the specific parts of said object by suction in order to electrostatically coat the desired part only.