拉拔力的确定是一项十分重要的工作。在拉丝机的设计过程中,所定的拉拔力应该尽量与实际工作所需要的拉拔力相符,过大或过小都是不利的。所定的拉拔力如果小于实际工作所需要的拉拔力,设计出的拉丝机将不能正常工作。反之,则主传动电动机的功率将超过实际工作所需要的功率,并且有关各部件、零件的尺寸也会相应地增大, The determination of pulling force is a very important task. Drawing machine in the design process, the pull-out force should be set as far as possible with the actual work required by the pull-out force, too large or too small are unfavorable. If the drawing force is less than the pulling force required for the actual work, the designed wire drawing machine will not work normally. On the contrary, the main drive motor power will exceed the actual work required power, and the parts, the size of the parts will be increased accordingly,