Abstract
This study aimed to establish an automatic sewing process for garment production according to textile properties. An automatic feeding system and a self-made template were introduced to an industrial sewing machine. Two types of stitches were performed on fabrics with various physical properties and surface roughness using this automatic sewing machine. The appearance, stitch length and width, seam strength, and seam efficiency were evaluated according to the sewing conditions, such as presser height and sewing speed. In addition, the correlation between textile properties, sewing conditions, and sewability was analyzed to derive a regression equation for sewability. The evaluation showed no difference in the lock stitch condition. On the other hand, under the zigzag stitch condition, the stitch width differed according to the presser height, which also affected the seam structure. The optimal presser height for each fabric was derived from the experimental results. In terms of the sewing speed, however, the seam strength was the best at 200 RPM in the lock stitch and 400 RPM in the zigzag stitch. The moderating effect of the presser height between textile properties and sewability in the lock stitch condition was confirmed. This result can be used as basic data for establishing an automatic sewing process for smart factories.
Highlights
The 4th revolution, known as Industry 4.0, has been attracting attention from academia and industry since it was first introduced at the Hannover Exhibition in 2011 [1].It was perceived as the informatization of the process of assembling and moving components of machines and mechanisms under the guidance and in communication with each other
In the thick fabrics of No 6~No 12 samples, the stitch length increased with increasing sewing speed
This study evaluated the appearance of the sewn parts by lock stitch and zigzag stitch and derived sewing conditions of each stitch pattern according to the properties of fabrics by using an automatic sewing machine
Summary
The 4th revolution, known as Industry 4.0, has been attracting attention from academia and industry since it was first introduced at the Hannover Exhibition in 2011 [1] It was perceived as the informatization of the process of assembling and moving components of machines and mechanisms under the guidance and in communication with each other. It has been recently recognized as an effective energy-saving process based on maximum automation and intellectualization of the production process [2]. Advanced countries are already suffering from labor shortages due to aging and avoidance of manufacturing Problems, such as high wages and labor shortages, can be solved by introducing an automation system
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