The oscillator included in Guyson Corp.’s TR-900 through-belt conveyor blast system is designed to provide reciprocating motion of the blast guns, reduce the number of nozzles required for uniform coverage and decrease compressed air requirements.
Components are conveyed in and out of the blast chamber by a rubber or steel-mesh belt, which can be fitted with guide rails to ensure the parts are properly aligned for single- or multiple-lane media-blast treatment. The belt also can be made with cleats or part-holding fixtures attached to orient the components. Conveyor belt speed is adjustable from zero to about 20 fpm. The stroke length and speed of the gear-motor-driven oscillation mechanism can be adjusted and synchronized with the belt feed rate.
As many as 14 blast guns are rigidly mounted on multi-adjustable brackets at the correct angles and distances to direct their blast stream onto targeted component surfaces. After impinging on the processed parts, blast media particles are collected in a hopper at the base of the finishing enclosure, fed into return ducts and pneumatically conveyed to the inlet of the system’s cyclone separator and media reclaimer, where dust and fines are removed from circulation and effective-sized media are channeled back to the blasting guns. The track extensions on the in- and out-feed ends of the machine are fitted with vacuum return catch trays to reclaim media carried out of the blast chamber.
The conveyor blast system can be used with a variety of blast media, making it suitable for different in-line impact treatment applications, including deburring, deflashing, surface preparation and cosmetic finishing.