| 摘要 |
PROBLEM TO BE SOLVED: To provide an ingot-drawing machine that causes no bend in the rod formed by drawing an ingot and no need of correcting work. SOLUTION: This ingot-drawing machine can heat and draw an ingot 1 of round cross section to a round rod 3 and is provided with a heating oven 8 for the ingot 1, a rotating means 10 for the ingot, means 5, 6, 7 for inserting the ingot 1 into the heating oven 8, holding means 13, 14 that simultaneously hold and rotate the round rod 3 and the drawing means 12a, 15a, 16, 17 for drawing out the round rod. In addition, an outer diameter sensor 11 is attached to the heating oven 8 for measuring the outer diameter of the ingot 8 and the control circuit is set to output a signal after comparison of the diameter from the sensor with the standard circle, finally, an eccentricity controller 10 is driven according to the signal. |
