Distribution Profile
Mechanical design arrangements define the internal volume and slope of the ducts that distribute loose fiber tufts to carding machines. In spinning mills, chute feed geometry determines the uniformity of the fiber lap before it enters the card clothing. Proper sizing ensures that air pressure remains constant across the entire width of the machine.
Density Control
The slope of the chute walls and the taper of the compressed air ductwork dictate the distribution of fiber mass across the output width. If the angle is too steep, fibers pack too densely in the center, causing uneven yarn count. A shallow angle can lead to material stagnation and blockages in the transport system.
In both cases, the resulting fiber mat lacks the consistent density needed for high-quality yarn.
Carding Interaction
Carding performance depends heavily on the consistency of the delivered fiber lap. High-speed carding lines use sensors to monitor the pressure and height of the fiber column in the chute feed geometry. Adjustments to the air velocity compensate for changes in fiber friction or humidity.
Stable feed rates prevent variations in the draft ratio at the draw frame.
Operating Margin
Production limits are established by the physical width of the carding equipment. Industrial mills must recalibrate the feed chute whenever changing the fiber blend from synthetic to natural, as different fibers have different packing behaviors. This adjustment prevents mass variation in the sliver.
