| 摘要 |
PURPOSE:To improve product quality and to prolong machine life by setting a speed change gear on a connecting device for every couple of capstans. CONSTITUTION:Two couples of cone type capstans 2, 3 and 4, 5 are set on the machine body 1 and a connecting device 9 is provided with a speed change gear 14. All capstans 2, 3, 4, and 5 are drived and a wire is fed to a die 6. After the total length of the wire passes through the die 6, a wire drawing is performed at a small slip ratio by adjusting the speed of capstans near the inlet side to the speed of capstans on the wire finishing side using the speed change gear 14. In that time, the accumulated slip on the wire finishing side is increased but the slip is corrected to the minimum slip ratio at the final stage of the inlet side capstans, so that the accumulated slip ration on the inlet side is minimized. Therefore, the product quality is improved and the machine life is prolonged through reduction of friction between the wire and the capstans.
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