Many carding machine, yet with a large bottom drain. Big drain on the bottom is a smooth process requirements exclude fuzz and dust, to avoid leakage bottom wounded in action, clogging, or at the entrance accumulates fibers.
Large gauge leakage between the bottom and taker gradually decreasing from the inlet to the outlet, the formation of more than car belly of the Gas Pressure in the drain at the bottom of the mesh, so that air can be evenly, gently flowing mesh, it is advantageous to exclude fuzz, dust. Great taker internal static pressure must be appropriate, too small to exclude the fuzz effect is not significant, too large mesh vent stream too fast, easy to make a long fiber with the flow when discharged, sentence or hang across between adjacent mesh with the continuous accumulation of the fibers, leaving the mesh gradually paste plug. Meanwhile, the big end of leakage inside the high static pressure, the fibers into the bottom of a small leak resistance increases accordingly, easy to make the entrance to the accumulation of fibers or wounded in action. The fiber product will be interrupted or wounded in action Strip into a large leak or fall into the bottom of the car belly, causing Batocera webs or inlet off white.
Large entrance drain bottom gauge generally can be adjusted between 4.76-9.53nun. The gauge increased leakage into the big end of the gas flow rate increases, excluding the large bottom drain flow and falling objects will increase, but missed the end of the entrance is split off thin air, falling objects representing excluded less, the total cotton Bei rate has decreased, while falling cotton trash content is increased. When fed cotton layer hetero more inlet gauge receivables small, too small to avoid impurities recovered. Big drain bottom outlet gauge is generally 0.4-1.6nun, this gauge is too large, mesh paste plug. As mesh plug paste, to close small bottom drain outlet gauge can be improved. After amplification cover plate can also be entry-gauge mesh paste stuffed solve the problem to some extent.
Large size drain bottom
(1) Large drain bottom radius: to gradually uniform airflow discharged from the bottom of a large leak, large bottom drain and roll the assassination from the inlet to the outlet 5:00 gauge should gradually shrink.
(2) large drain bottom chord: bottom chord of the large leakage is one of the factors affecting the licker noils. When the dust knife height position unchanged, shortening taker chord, which is equivalent to adding a second drop Areas in length, can have more opportunities in the area of ​​debris falling. Meanwhile, the air flow thickening block the entrance to the taker falling debris will rise. When increase production due to falling cotton production is not in proportion with the increase in order to maintain a certain rate of noil and cleaning efficiency, large leakage should be shorter than the bottom chord when low yield.