Reasons and improvement measures for high waste rate in polyester POY paper tube production
In response to the high rate of paper tube waste in the production of polyester pre-oriented yarn(POY)paper tubes,the reasons for the generation of waste tubes were analyzed from both equipment and process aspects,and the improvement meas-ures were implemented.The results showed that the waste rate of POY paper tubes first decreased and then increased with the in-crease of the parchment paper stress and the paper debonding amount;the waste rate of POY paper tubes decreased as the outer diameter of the rough cutting blade increased and the gap between the blade and the coiling shaft became smaller;the angle be-tween the paper tube receiving platform and the coiling machine was too large,resulting in an increase in the waste rate of POY paper tubes;and the production proceeded steadily and the waste rate of polyester POY paper tubes could be reduced from 0.18％to 0.11％per 1 000 units when the process conditions were controlled as followed:a coiling speed of 15 m/min,parch-ment paper stress of 15 N,difference of 1.0 mm between the outer diameter of the rough cutting blade and the inner diameter of the paper tube,angle of 30° between the paper tube receiving platform and the coiling machine and the existing integrated debonding device was transformed into a segmented debonding device to stabilize the debonding amount of paper at 90％.
万方数据
维普
