超声波缝合涤/棉混纺机织物缝口的力学性能

Seam Mechanical Properties of Polyester / Cotton Blended Woven Fabric Welded by Ultrasonic Sewing Machine

通过定速拉伸超声波缝合涤/棉混纺机织物缝口,比较不同因素组合下的缝口力学性能,揭示超声波花轮压力、花轮速度、输出功率与涤/棉混纺机织物缝口力学性能的关系.研究结果表明:超声波花轮压力越大、花轮输送速度越小、超声波功率越大,织物缝口的力学性能越好.缝口断裂强力、断裂伸长率、断裂功与提出的超声波缝合影响因子(压力×功率/速度)呈显著正线性相关,该影响因子可以用来表征超声波缝合织物缝口的力学性能,运用该影响因子可简化超声波缝纫机的调节操作过程.

The effects of the pressure and speed of pattern roller, ultrasonic power on the seam mechanical properties of polyester/cotton blended woven fabric welded by ultrasonic sewing machine are studied by constant-rate stretching of the seams welded under different conditions. The research results show that better mechanical properties are achieved under higher pressure and lower speed of the pattern roller, and higher ultrasonic power. The seam strength, extension and work at break are positively correlated with the ultrasonic welding factor （pressure x power/speed）, which can be used to characterize the seam mechanical properties of fabric welded, and to simplify the adjusting procedure of ultrasonic sewing machine.