| 摘要 |
PURPOSE:To smoothly carry out the diameter spreading work for a spiral tube by separating a wire material from the spiral tube on the basis of the information of the inside diameter of the spread diameter part of the spiral tube which is separated by a prescribed distance from a wire material separation position on the spiral tube. CONSTITUTION:A spiral tube 10' is attached in nearly closely on the inner peripheral surface of a sewer 81 by spreading the diameter. In this case, in order to surely separate a strip-shaped wire material 30 from the spiral tube 10', a wire material separating tool 40 for pulling the strip-shaped wire material 30 in the separation direction of the strip-shaped wire material 30 is used. When a detector 42 detects that the inside diameter of the spiral tube 10' becomes a prescribed proper value, a controller 46 sets the wiring speed of a wiring device 50 for the wire material 30 to a proper speed. Accordingly, the diameter spreading work for the spiral tube is smoothly carried out, and the working efficiency is improved drastically. |
