Abstract

This article presents models for predicting thread consumption of lockstitch seam. Various fabric and sewing thread parameters like fabric thickness, number of plies and sewing thread diameter were found to be the control factors in thread consumption calculations. New equations were developed from real stitch images by creating realistic stitch models of lockstitch seam. Lockstitch was modeled using elliptical, racetrack and circular geometry. Elliptical and racetrack models were verified by stitching samples at different feed rates by comparing actual and predicted thread consumption. Scatter plots of both models were made to check the level of accuracy with actual values. The proposed model offers relatively less error% as compared to previous rectangular and elliptical models. Racetrack model came out as the most simpler, versatile and accurate model of thread consumption calculation of lockstitch. It was found that circular model is suitable for the samples stitched at equal stitch spacing and fabric assembly thickness.

摘要

本文介绍了预测平缝线消耗的模型。发现织物厚度、层数和缝纫线直径等各种织物和缝纫线参数是计算线消耗量的控制因素。通过创建平缝线缝的逼真针迹模型，从真实针迹图像开发了新的方程。Lockstitch 使用椭圆、跑道和圆形几何形状进行建模。通过比较实际和预测的螺纹消耗，以不同的进给速率缝合样品，验证了椭圆和跑道模型。制作了两个模型的散点图以检查实际值的准确性水平。与以前的矩形和椭圆形模型相比，所提出的模型提供了相对较小的误差％。Racetrack模型是最简单的，通用且准确的锁式线迹消耗计算模型。发现圆形模型适用于以相等的针距和织物组装厚度缝合的样品。