High Speed Direct Drive Computerized Lockstitch Stepping Industrial Sewing Machine

In the mid to low end sewing machine products, the world sewing machine industry has completed its transfer to China, and the industrial transfer is gradually extending to mid to high end products. In the Chinese market, there is a wide variety of types and brands of sewing machines available, meeting the needs of different consumers. Sewing machines, as an important sewing tool, play a crucial role in fields such as textiles, clothing, and home furnishings. With the continuous advancement of technology and the diversification of consumer demands, the functions and types of sewing machines are also constantly enriched and improved.

The working principle of a sewing machine mainly includes four steps: thread transfer, pinhole formation, stitch formation, and fabric transfer. The sewing machine provides two threads, upper and lower, through a spool, which enter the machine body through a guide, tensioner, and spool to ensure smooth thread transfer. The sewing machine forms needle holes through the reciprocating motion of the upper and lower needles. When the needle moves downwards, the upper needle passes the thread through the fabric through the thread plate and the lower needle eye plate, forming a needle eye. The formation of a trace depends on the interweaving of online and offline lines. When the upper needle passes down through the fabric, it will thread the upper thread through the fabric and interweave with the lower thread in the needle eye, forming a stitch. The sewing machine transfers fabric through the lower hem, upper hem, and gear transmission. When the gear rotates, the lower swing and upper swing move alternately, conveying the fabric forward.