Research on performance optimization of intermittent cotton feeding machine based on kinematic analysis of mechanism

Textile machinery is an indispensable piece of equipment in modern manufacturing, and the proper operation of a machines cotton-feeding mechanism directly affects product quality and production efficiency. Based on a physical intermittent clamp-type cotton-feeding machine with take-up rollers, this paper conducts kinematic analysis and optimization of its drive mechanism (including the slotted-wheel mechanism, the ratchet anti-reverse mechanism, and the take-up roller assembly). Using basic principles of planar mechanism kinematics, the degrees of freedom of the drive mechanism are calculated and the determinacy of the motion is verified. Mathematical models are established for the angular displacement, angular velocity, and angular acceleration of the clamp plates pivot; SolidWorks is then used to simulate and analyze the motion characteristics of the guide rod under variations of the link-length ratio (l4/l1). From problems such as errors in degree-of-freedom calculations and the difficulty of modeling compound motions, this paper proposes solutions to the identified issues. The study provides a theoretical reference for subsequent structural optimization and performance improvement of cotton-feeding mechanisms in textile machinery, and demonstrates that kinematic analysis methods offer useful guidance for mechanical design.