Design and startstop antivibration control of highprecision extruded rubber online weighing and shearing machine

WANG Jia-en, NIE Xiao-gen
(School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China)

Abstract: Aiming at the problems of low production efficiency, high labor intensity and low weighing accuracy in the weighing and shearing of extruded rubber, the characteristics of extruded rubber, the cutter structure feature and the blade rotation angle were studied, and the motion track and vibration of the cutter blades in the process of shearing was controlled. Driven by stepping motor and the coaxial reverse rotation of two blades to realize the automatic shearing of extruded rubber strip, a kind of extruded rubber shearing machine based on PLC was designed and a start-stop anti-vibration algorithm for the motor acceleration and deceleration based on PLC was proposed. On the basis of this algorithm, the PLC output pulse frequency database was established. The results indicate that the system can weigh and shear the extruded rubber strip continuously and automatically , realize the high real-time call of the PLC output pulse frequency, and realize the high-precision weighing and shearing of the extruded rubber.
Key words: rubber shear; acceleration and deceleration algorithm; PLC control; anti-vibration control