A WIRE BLASTING DEVICE ABLE TO AUTOMATICALLY CONTROL THE LENGTH OF WIRE

摘要

An automatic length-adjustable wire blasting device is provided to reduce the work time by rotating eight wires together and injecting sand or grit directly inside a pipe. An automatic length-adjustable wire blasting device comprises a hydraulic trolley(10), a wire holder(21), and a length-adjusting slider(31). The hydraulic trolley is moved via wheels or track. The wire holder in which a plurality of wires(40) are mounted is connected to a hydro servo motor to rotate. The length-adjusting slider has a hole to limit the rotational range of the wire mounted on the wire holder, and moves back and forth by a hydraulic servo cylinder.