Design and experiment for flexible cutter of litchi denucleating machine

In view of the low denucleating rate and serious damage in existing litchi denucleating machine, a kind of four-blade nylon cutter was designed based on the analysis of litchi structure ,material characteristics and the stress state in denucleating process. Considered the evaluating parameters, such as denucleating success rate, pulp and syrup loss rate and stone breaking rate, orthogonal experiments were selected to test the machine. Results showed that, according to priority, the greatest three influencing factors order to denucleating effect were cutter inner diameter, feed depth and cutter shaft speed. The best test result was taken with cutter inner diameter at 10 mm, feed depth at 2 mm, and cutter shaft speed at 12 r/min. The cutter has strong adaptability, good effect and easy fabrication. This research has important meanings for the design of litchi denucleating machine.