Technological innovation of the yarn feeder for circular knitting machines

The technological innovation of the yarn feeder of the knitting round machine focuses on four directions: intelligent control, precise tension, structural materials, and functional integration. The core is to achieve high precision, adaptability, low loss, traceability, and digital collaboration with the entire machine.
1、 Intelligent Drive and Digital Control
-Servo+algorithm closed-loop: replacing traditional mechanical transmission with servo motors, combined with tension sensors and fuzzy/adaptive algorithms, real-time parameter tuning, and tension fluctuation control within a very small range; The Yongbo intelligent yarn feeding system has a yarn length accuracy of 1/2500 of the outer circumference of the yarn wheel, with synchronous tolerance reduced to traditional 18%. It can also save formulas and call them on the touch screen, significantly improving downtime marks.
-Dataization and remote operation and maintenance: integrating sensors such as yarn breakage, tension, speed, temperature, etc., supporting visual monitoring, fault warning, and remote diagnosis; Like the Weichen VYS system, the error tends to zero, adapting to multiple yarns and working conditions, reducing manual debugging.
-Split type electronic yarn feeder: The SF series uses single-chip microcontrollers and optoelectronic technology, with smaller volume, faster speed, lower energy consumption, finer yarn separation spacing, adjustable S/Z direction, suitable for high demand scenarios such as jacquard weaving.
2、 Tension control and low damage innovation
-Ultra low pressure tension technology: The Meimingge MPF-L adopts a vibration self-cleaning tensioner, and the tension plate rotates in the opposite direction, with a minimum tension of 1 gram, reducing the risk of yarn accumulation and yarn running.
-Specialized tension mechanism: The Taiyangzhou ultra-fine fiber yarn feeder is equipped with low resistance transmission and yarn feeding tensioner to solve the problem of yarn separation; The lever balance probe prevents the light from turning on due to slight movement; Qingming XDO-623 uses an extended yarn storage wheel without a lower edge to reduce waste yarn cleaning, and ceramic wheels to reduce yarn damage.
-Adaptive tension adjustment: tension clamp and bearing optimization, flexible rotation, stable tension, suitable for sensitive yarns such as spandex and ultrafine fibers.
3、 Upgrading of Structure and Materials
-Linkage fixed length yarn supply: The transmission shaft, dual transmission wheels, switch and linkage shaft work together to automatically switch between winding/feeding modes, achieving intelligent switching from non fixed length to fixed length and reducing manual intervention.
-Lightweight and wear-resistant design: using low friction materials such as ceramics and engineering plastics to improve the smoothness and wear resistance of the yarn storage wheel; Customized silent bearings to reduce energy consumption and noise; LED circuit is suitable for wide voltage input.
-Modular quick installation: simplifies yarn threading and maintenance, the front yarn breakage probe can be locked, adapted for debugging and idling, and improves batch changing efficiency.
4、 Special scenario specific solution
-Spandex specific yarn feeder: The WAL-N series uses a lightweight structure and low tension yarn breaker to meet the requirements of high count and low denier yarn feeding.
-Ultra fine fiber adaptation: Optimize the yarn tensioner and low resistance transmission, solve the problems of yarn separation and breakage, and improve the yield of finished products.
-Seamless/Jacquard Adaptation: Electronic gap type yarn storage device and yarn separation design, matched with intermittent precise yarn supply of complex structures.
5、 Innovation Value and Trends
-Core values: Efficiency improvement of 15% -30%, yarn loss reduction of 10% -20%, defect reduction, smoother fabric surface, and reduced labor and maintenance costs.
-Development direction: integration with industrial Internet/Internet of Things to achieve intelligent dispatching of the whole plant; Further lightweight and maintenance free materials and structures; AI vision and deep learning enhance adaptability to complex yarns.