Strengthen operation management and stabilize sliver quality

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

2) Patrol frequently and check frequently;

3) Ensure that the dust and sundry pipes at the taker-in, doffer and other dust collection points are smooth.

Improve the operation status of equipment and ensure the quality of raw sliver

1) Strengthen the maintenance of equipment.

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

3) Improve the sharpness of the needle cloth, ensure the process on the vehicle, and achieve "five fronts and one accuracy".

4) Shorten the freewheeling cycle.

5) The actual operation rate of the opening and carding machine has reached more than 85%, which is beneficial to the stable production of the blowing-carding unit system, for "fine grasping, thin feeding, light beating, opening, dense carding, and less damage", and for removing more knots and impurities.

6) Conveying cotton runs smoothly, without blocking, hanging flowers, reducing cotton bunches and neps. Therefore, close the pipes and cotton boxes to maintain sufficient air volume and pressure.

7) The beater's blade, angle nail comb needle, serrated rack and dust remover should be smooth and free of burr, so as to prevent the fiber from being hooked and the cotton knot and tow from being produced by rubbing.

Control the airflow parameters of each part

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

Keep the passage smooth and clean, and the air flow in the pipeline smooth

When the pipeline air flow configuration is unreasonable, it will affect the opening and impurity removal, and may cause traffic jam, forming neps and tow. Keep all dust and miscellaneous pipes on the machine smooth, and clean or replace the filter bag in the dust filter room in time.

Temperature and humidity control

When the temperature is too low, the wax on the surface of cotton fiber becomes hard, the fiber becomes weak, and the strength decreases; When the cotton wax is too high, it will soften, affect the drafting and cause evenness. When the relative humidity is too high, the cleaning efficiency of the blowing-carding unit is low, there are many impurities in the sliver, the carding transfer is difficult, the 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; With the increase of flying flowers and floating cotton on the net, it is easy to break edges and increase the number of broken ends; It is difficult to peel cotton because the cotton net is attached to the doffer. In particular, Xinjiang cotton, which has high sugar content, should pay more attention to the control of temperature and humidity. The temperature and humidity control of the blowing-carding unit is stricter than that of the ordinary process.

Uniformity of carding machine table

To maintain the uniformity of the carding machine includes dust removal efficiency, lint growth rate, nep growth rate and sliver quality unevenness, that is, to control the machine difference.