Automatic Piecing Air Jets for Fine Yarn Lifting From Cops

The lifting process is divided into multiple sequential attempts with increasing air intensity. The system applies air blowing in discrete stages (first attempt, second attempt, third attempt, etc.), where each attempt uses higher intensity than the previous one. This segmentation allows the system to achieve reliable lifting of fine count yarns while avoiding excessive air consumption by only applying high intensity when necessary and only for the minimal required duration.

The air blowing intensity is dynamically adjusted based on the yarn count and lifting success. The system automatically increases air intensity progressively across multiple attempts until the yarn is successfully lifted. This dynamic adjustment ensures that high compressed air intensity is applied only when and where needed, optimizing the balance between lifting reliability and air consumption.

The air blowing is applied periodically in discrete attempts rather than continuously. The system performs first attempt, then pauses, then second attempt, then pauses, then third attempt. This periodic application allows the yarn to settle between attempts and prevents continuous high-pressure exposure that would cause excessive hairiness, twists imperfections, and neps formation, while still achieving reliable lifting capability.

The air blowing pressure and duration are dynamically controlled to increase progressively across attempts but are automatically reduced or stopped once lifting is achieved. This dynamic control prevents excessive high-pressure exposure that would damage yarn quality, while ensuring sufficient pressure is applied when needed for difficult lifts.

The lifting process is segmented into a maximum of three attempts with progressively increasing intensity. This limited segmentation provides a structured approach to handling difficult lifts without allowing the process to drag on indefinitely. The system efficiently progresses through attempts 1, 2, and 3 with automatic intensity escalation, ensuring lifting success while maintaining reasonable piecing efficiency by capping the number of attempts.

The system dynamically escalates air intensity across attempts, allowing quick success on later attempts without requiring multiple low-intensity attempts. This dynamic progression improves lifting success rate while minimizing total time consumed, as the system becomes more effective with each attempt rather than repeating the same low-intensity approach.

Air blowing is applied periodically in discrete attempts with pauses between them, rather than as continuous prolonged exposure. The system performs brief air blowing pulses at attempt 1, pauses, then attempt 2 with higher intensity, pauses, then attempt 3. This periodic action achieves reliable lifting while preventing the continuous prolonged exposure that would cause yarn quality deterioration.

The air blowing duration and intensity are dynamically adjusted to apply force only when needed for lifting, not continuously over the cop surface. The system increases intensity progressively across attempts but reduces or stops blowing once lifting is achieved, preventing prolonged exposure that would harm yarn quality while maintaining lifting reliability.