AIA Polyester takes multiple measures to control the deviation of heavy yarns together

AIA polyester factory has repeatedly reported that there is a deviation between the boxes and boxes during the sampling inspection of the group supervision department. In order to overcome this problem, Mr. Wang kept urging polyester factories to come up with practical and effective measures this year, and even made suggestions in person. Up to now, the polyester factory has formed a set of detailed and effective analysis solutions for the deviation of the fixed weight yarn. After the deviation of the fixed weight yarn occurs, it can take the initiative to make a series of adjustments until the weight of the fixed weight yarn tends to the normal level.

The editor of this newspaper specially interviewed Director Wang of the polyester workshop on the specific measures taken, and learned that they are controlling from these aspects: 1. Compared with the past, the workshop has increased the frequency of sampling. (November) According to the frequency of two days per month, the 1#-26# machines will be randomly checked, and then a data will be sorted out, which is the original basis for our follow-up work. After more than a month of repeated adjustments, I also accumulated some experience and improved efficiency. Now, if the deviation is relatively large in the data, it will be judged according to experience whether to adjust the oil content or adjust the doffing time. 2. After the adjustment, the production team will conduct further confirmation (according to the weight of 240 spindles per machine), and during the day shift, the weight of the two machines in the workshop will be randomly checked in turn to improve the timing of weight deviation adjustment. 3. Strengthen the operation of the staff and the lamp doffing, which is also repeatedly emphasized and focused on in the team. 4. For new machines or machines with new batch numbers, we will weigh the first two batches of wire to ensure the stability of the fixed weight wire.

Experts know that fixed weight yarn is more difficult to control than fixed filament yarn. Because there are too many factors that affect the fixed weight, such as the quality of the raw silk, the fineness, the temperature and humidity of the workshop environment, the oil content, the quality of the oil, and some controllable human factors, etc. When doing the weight analysis between the fixed weight wire box and the box, the workshop refers to the inspection and random inspection data, and on the premise that some factors remain unchanged, the method of comparison and exclusion is used to conduct screening and inference, and then the possible influence The biggest variables, after narrowing down the scope, continue the previous method, and then go through process debugging and team sampling to determine the real factors that affect it.

In order to more effectively control the occurrence of weight-setting wire deviation, we not only need to have countermeasures to deal with it after it occurs, but also need to be able to prevent it before it occurs. In the procurement of raw silk and the adjustment of temperature and humidity in the workshop, the two-pronged approach of prevention in advance and control after the event is carried out, and the procurement and production are involved together. The deviation problem of fixed weight yarn may be better than before.