| 摘要 |
PROBLEM TO BE SOLVED: To stabilize a blasting amount and a blasting pressure of grinding materials. SOLUTION: This air type blast device is provided with a grinding material storage tank 11, a first air pipe 13 penetrating through the grinding material storage tank 11 and feeding a compressed air from an air compressor 12, a grinding material introduction hole 14 provided in a part in the grinding material storage tank 11 of the first air pipe 13, an air pressure adjusting regulator 16, a delivery nozzle 17, a second air pipe 19 branched from an upstream side position 18 of the grinding material introduction hole 14 of the first air pipe 13 and connected to a downstream side position 20 of the grinding material introduction hole 14, an air flow adjusting mechanism 21 provided in the second air pipe 19, a third air pipe 23 branched form a downstream side position 22 of the downstream side position 20 and connected to the grinding material storage tank 11, a porous body 25 partitioning the grinding materials 24 from the grinding material introduction hole 14 in the grinding material storage tank 11 and a vibrating mechanism 26 vibrating the porous body 25. COPYRIGHT: (C)2004,JPO
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