When the JWF1012 blowing and carding production line is processing American cotton and Indian cotton with a high impurity content of 2.7%, the quality of the card sliver has problems such as large impurities, high neps, and large growth of short lint. The cleaning process will be carried out according to the specific conditions. Several optimization measures have been taken in the combing process and achieved significant results.
Optimization of JWF1012 cotton grabbing walking speed
JWF1012 cotton grabbing double beater swing function balances the workload of the two beaters and grabs cotton pieces evenly and consistently Good sex. The double hand grabs the sliver in the same direction without damaging the fibers and reducing neps. During the processing, we implement the technological measures of “grasping frequently and grasping less”, and grasp the cotton pieces finely and small, so that the impurities can be fully exposed, which facilitates impurity removal and combing, which is conducive to quality improvement. The process optimization effect of JWF1012 when processing raw cotton with high impurity content is shown in Table 1.
Two FA113C beater speed optimization
FA113C single-axis flow as The pre-opening machine uses the suction of the front fan to suck the raw materials into the machine, and moves in a spiral along the guide plate. It is opened by the opening roller, and the impurities separated by the dust grid fall into the dust box. It is discharged from the automatic waste suction device to the dust filter system.
Single-axial flow is generally installed between the cotton picking machine and the cotton mixing machine. Its speed has a great influence on fiber impurity removal and nep removal. High speed is beneficial to removing short lint and large impurities, but too high speed will cause fiber damage. The process optimization effect of FA113C when processing raw cotton with high impurity content is shown in Table 2 and Table 3.
As can be seen from Table 2 and Table 3, when the beater speed is 550r/min, it is beneficial to the removal of impurities and the control of short lint growth, but the beater speed reaches 600r/min , the fiber damage will be more serious.
Three JWF1124 fine cotton cleaning machine process optimization
JWF1124 fine cotton cleaning machine uses three dust removal knives, three pre-carding boards, two The adjusting plate and three air suction ports can finely open the fibers after preliminary opening and mixing, and effectively remove impurities in the fibers. The dust removal, loosening, and impurity removal effects are good. Continuous air suction can remove dust and impurities in a timely manner. ; The air suction hood, adjusting plate, and adjusting plate base are made of aluminum profiles, which have high precision and smooth surfaces, and do not hook fibers; too high a speed will easily cause backlash and affect product quality. The process optimization effect of JWF1124 when processing raw cotton with high impurity content is shown in Table 4.
As can be seen from Table 4, when the speed of the fine cotton cleaning machine exceeds 600r/min, it is not conducive to the removal of impurities.
Experiences in optimizing the licker-in speed of four JWF1204 carding machines
The cylinder of JWF1204 carding machine is raised, and the area of the cylinder carding area is larger than that of traditional cards. The cotton machine is increased by 20%; the cotton box and the cotton feeding roller are fed in the forward direction, and the cotton feeding plate is elastically held; the carding machine uses an inverted forward feeding mechanism to feed the cotton, and the impact of the licker-in speed on the carding effect is greater than that of reverse feeding. Institutions are bigger. The process optimization effect of JWF1204 when processing raw cotton with high impurity content is shown in Table 5.
As can be seen from Table 5, the high speed of the licker-in results in large fiber damage and is prone to backlash, which is not conducive to quality.
Five Conclusions
By taking the above process optimization measures, we can give full play to the advantages of short blowing and carding processes and high efficiency, and process The quality of the sliver is effectively improved when the raw cotton content is high. </p
