DUST COLLECTION CLEANUP DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a dust collection cleanup device capable of reliably eliminating powder dust residing in a shaving hole without scattering, and excellent in a working property.SOLUTION: A dust collection cleanup device 10 comprises: an inner tube (a suction tube) 12 for sucking powder dust from a tip part 12A by suction means and discharging the same from a rear end part 12B; a ring-shaped injection nozzle 16 arranged in the outer circumference of the tip part 12A of the inner tube 12 and having an injection port 14A integrally formed in the outer circumference of an outer tube 14 for injecting compressed air; the outer tube 14 (an introduction tube) 14 for introducing the compressed air into the ring-shaped injection nozzle 16; and supply means for supplying the compressed air to the outer tube 14 from a feed port 14B, and has a double tube structure composed of the inner tube 12 and the outer tube 14.