Selecting the Right Cam for Your Circular Knitting Machine

A crucial component in circular knitting machines, the cam plays a pivotal role in controlling the intricate movements of needles and sinkers. It is broadly categorized into looping cam, tucking cam, floating cam, and sinking cam, each serving a distinct function in the knitting process.

The quality of the cam significantly impacts both the circular knitting machine and the resulting knitted fabrics. When selecting a cam, several considerations should be emphasized.



Firstly, the trigonometric curve of the cam must align with the specific requirements of different knitted fabric styles. Designers, with varied preferences and focuses, may require different trigonometric curves to achieve desired outcomes.

Secondly, the material and heat treatment of the cam are paramount due to the prolonged high-speed friction between needles (or sinkers) and the cam. ANSI D2, renowned for its good hardenability and low quenching distortion, is employed as the raw material for the cam. The quenching process ensures that the cam attains the necessary hardness without causing adverse effects.

Lastly, the roughness of the cam is of utmost importance, directly influencing its usability and wear resistance. Achieving optimal roughness, typically below 0.8 μm, requires precision in processing equipment, tools, and cutting techniques. Inadequate roughness may lead to issues such as needle wear, needles hitting, and overheating of the cam seat.

In summary, selecting a cam for a circular knitting machine demands a meticulous consideration of trigonometric curve alignment, material quality, heat treatment, and surface roughness to ensure optimal performance and durability in the knitting process.