| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device for continuously feeding a certain amount of abrasives from an abrasive recovery tank to a spray nozzle in a stable condition and also easily and surely setting a desirable spray amount of abrasives. SOLUTION: In the method, abrasives 34 in the abrasive recovery tank 26 are fallen to be charged into an abrasives feed hole 24 on circumference of a horizontally-rotated abrasives feeding table 20, and blown up from a feed port 22 engaged in a rotation trajectory of the abrasives feed hole 24 by injection compressed air 31 from a compressor to be conveyed into an abrasives supply tube 30 via a feed tube 29, while being pressure filled in the spray nozzle 11 through pressurized compressed air 32 from a fan to be sprayed on a workpiece. By controlling rotational speed of the abrasives feeding table, etc., a desirable supply amount of abrasives can easily be established and supplied at a low cost. COPYRIGHT: (C)2004,JPO
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