| 摘要 |
<p>The invention relates to a traction device (1) for straining at least a flat winding strip in a winding process. The traction device (1) comprises at least two rotary rollers (5, 6) connecting with each other through the circumference to guide the flat winding strip to pass through the rollers, wherein at least one roller (5) is connected to a motor driving system (8) for controlling roller speed, thus a predetermined tension is generated on the flat winding strip during the winding process.</p> |
