Combing cotton's six major points

1. Strengthen operation management and stabilize the quality of card sliver

(1) Clean frequently to prevent flying flowers from entering the cotton net;

(2) Frequent patrols and more inspections;

(3) Ensure that the dust pipes at the suction points such as the licker roller and doffer are unobstructed.

2. Improve the operating status of the combing cotton equipment and ensure the quality of card sliver

(1) Strengthen the maintenance of equipment.

(2) Strengthen the monitoring and inspection of equipment operation status. Good equipment status is the basis for good yarn spinning.

(3) Improve the sharpness of card clothing, ensure that the craftsmanship is on the train, and achieve "five fronts and one standard".

(4) Shorten the cycle of picking up the car.

(5) The actual operating rate of the opener and cleaning machine has reached 85% or more. This is a stable production of the blowing-carding system, which is "fine grasping, thin feeding, light beating, loosening, dense combing, and less damage", and more knots are removed. favorable.

(6) The conveying cotton runs smoothly, does not block, does not hang flowers, and reduces cotton tufts and neps. Therefore, do a good job of sealing the pipes and cotton boxes to maintain sufficient air volume and pressure.

(7) The beater's blades, corner nail combing needles, serrated racks, and dust removal knives should be smooth and clean, without burrs, so as to avoid hooking fibers and rubbing to produce neps and tows.

3. Control the airflow parameters of each part

Ensure the normal operation of the dust filter equipment, and ensure that each dust suction point of the carding machine has sufficient air pressure and wind speed. Stabilize the air flow in the workshop and ensure the air pressure of the dust filter.

4. Keep the channel clean and clean, and the pipeline airflow is unobstructed

When the pipeline airflow configuration is unreasonable, it will affect the opening and removal of impurities and may cause traffic jams, forming neps and tows. Keep all dust and miscellaneous pipes on the machine unobstructed, and the filter bag of the dust filter room should be cleaned or replaced in time.

5. Control of temperature and humidity

When the temperature is too low, the wax on the surface of the cotton fiber becomes hard, the fiber becomes weaker, and the strength decreases; when the temperature is too high, the cotton wax softens, which affects drafting and causes unevenness. When the relative humidity is too high, the cleaning efficiency of the blow-carding unit is low, the card sliver contains many impurities, the carding transfer is difficult, the cotton web sags, and the neps increase. When the relative humidity is too low, the fiber is easy to break, adding short lint and noil, which is not conducive to saving cotton; the increase of flying flowers, the floating of the cotton net, it is easy to produce broken edges and increase the broken ends; the cotton net is attached to the doffer and the cotton is stripped difficulty. Especially when Xinjiang cotton is used, its sugar content is high, and more attention should be paid to the control of temperature and humidity. The temperature and humidity control of the blow-carding unit is stricter than that of the ordinary process.

6. The unity of the carding machine

Maintaining the uniformity of the carding machine includes dust removal efficiency, lint growth rate, neps growth rate, and card sliver quality unevenness, that is, the difference in the table must be controlled.