4-wheel stretch thread winding machine, controlled by automatic system

Abstract

The objectives of this research were as follows: to design and construct a prototype of an automatic four-spool stretch silk winding machine; to determine the efficiency of the automatic four-spool stretch silk winding machine; and to study the perceptions of silk weaving women on using the automatic four-spool stretch silk winding machine. The sample consisted of 30 silk weaving women and silk fiber producing groups in Ban Khubon and Ban Hin Lek Fai, Khu Mueang Subdistrict, Khu Mueang District, Buriram Province. The research instruments for the automatic four-spool stretch silk winding machine included a motor performance test recorder, a silk sensor performance test recorder, a structural balance performance test recorder while operating at maximum power, and a test recorder of the efficiency of the automatic four-spool stretch silk winding machine compared to the conventional silk winding machine. The questionnaire also included user satisfaction questionnaires. The statistics used in this research included means, percentages, and standard deviations. The findings were as follows :

           The results of the motor performance test found that in testing the motor 8 times, the test time was from 1 hour to 8 hours and the machine was rested for 10 minutes each time. The motor performance was at a normal level, calculated as 100 percent. The results of the silk detection sensor performance test found that in testing the silk detection sensor 10 times, the silk detection sensor detected the silk when the silk broke 10 times, calculated as 100 percent.

               In addition, after conducting 7 tests, each lasting 1 hour, the machine demonstrated optimal structural balance during maximum operation. The results showed no abnormal vibrations in the structure, smooth rotation of the reels, automatic stoppage when the silk thread broke, and the machine stopped when the spool was full. All performance indicators averaged a score of 1, achieving 100% accuracy.

               In terms of silk reeling efficiency, a comparison between the 4-wheel stretch thread winding machine, controlled by automatic system and traditional reeling methods tested on 40 spools by 30 users indicated that traditional reeling took an average of 147.10 minutes, while the 4-wheel stretch thread winding machine, controlled by automatic system took an average of 50.83 minutes. The time difference averaged 96.27 minutes. Hypothesis testing using the paired samples t-test showed that the 4-wheel stretch thread winding machine, controlled by automatic system had significantly higher efficiency than traditional methods at the 0.05 significance level.

               In term of user satisfaction. The findings revealed that overall satisfaction of the users using the 4-wheel stretch thread winding machine, controlled by automatic system was rated at a high level. When considering individual aspects, 3 items were rated at the highest level of satisfaction, while 7 items were rated as high. The top three aspects, ranked by mean score from highest to lowest, were: the ability of the motor to operate continuously, the machine's speed in winding silk with consistent quality, and the strength and suitability of the materials used in its construction.