| 摘要 |
An apparatus for drawing a pipe is provided to make a plurality of devices interact with each other through a guide roller, so that work efficiency is raised, space utilization is improved, and working cost is reduced. Upper and lower drums(101,102) used to draw a pipe are mounted on a low end portion of a frame(100). Two motors(103,104) drive the drums independently. The upper drum is connected to a support shaft(105) having a cylinder shape. The lower drum passes through the hollow of the support shaft of the upper drum and is connected to the support shaft rotated by the motor, such that the cross sectional area decrease rate of the pipe is adjusted. The rotary speed of a lower drum is increased in order to increase the cross sectional area decrease rate of a drawn pipe. A plurality of pipe drawing devices performs a pipe drawing operation by using a guide roller.
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