| 摘要 |
PROBLEM TO BE SOLVED: To improve sealing performance around a working chamber. SOLUTION: This blasting device is constituted by providing a blast gun 1 to inject a powder polishing material toward a working surface of a work 9 and the take a reciprocating linear motion within a specified vertical surface against the work 9, a screen belt 2 to be provided at an upper partition part 81 of the working chamber 8 to hold the blast gun 1, the work 9, etc., in a closed state, to work interlocked with the reciprocating reciprocating linear motion of the blast gun 1 and to hold the circumference circumference of the partition part 81 in an airtight state and a duct 3 to be provided on the screen belt 2, to pass the screen belt 2 in a state of bundling a polishing material supply passage to supply the polishing material to the blast gun 1 and a high pressure air tube to supply high pressure air and the hold the polishing material supply passage and the circumference of the high pressure air tube in a airtight state.
|
