Drafting new domestic institutions has been greatly improved carding, drafting zone sloping chimney draft device original single zone drawing a straight line to a dual zone curvilinear drafting, improved drafting zone of motion of the fiber control and improve the ability to draw
And quality combed sliver after drafting.
(A) on three under five draft form FA261 carding machine using a ramp arranged on three under five draft form, as shown in Figure 3--40 shown. A second lower structure formed on a diameter of 45mm, the rear rubber rollers are two rides on the roller having a diameter of 27mm, so after drafting zone and the main drafting zone are curve drawing, strengthened the drafting zone control motion of the fiber. After the draft ratio
A fixed 1.33 times, before the draft ratio between 6.5-14.7 times adjustable, Yang led a total multiple of 8.6-19.6 times.
(Ii) three on three draft form FA251B pressure bar type, FA252 carding machine adopts three on three draft pressure bar graph type, roller diameter are back draft ratio 35mmo FA251B type is fixed at 1.16 times the total draft ratio of 7-17 times.