The invention relates to the technical field of cleaning equipment, and discloses multi-stage cleaning equipment for
plastic bottle pieces. Comprising a cleaning frame, the top of the cleaning frame is provided with a
vibration transmission part, the
vibration transmission part is in transmission connection with a cleaning shaft and a vibration cleaning frame, the cleaning shaft is rotationally sleeved with a cleaning net cylinder, the cleaning net cylinder is rotationally connected with the vibration cleaning frame, the bottom end of the cleaning net cylinder is provided with a feeding
assembly, and the vibration cleaning frame is provided with a first differential part; the cleaning net cylinder is in transmission connection with the cleaning shaft through a first differential part, and a spiral cleaning net piece rotationally attached to the cleaning net cylinder is installed on the cleaning shaft. According to the
plastic bottle piece cleaning device, cleaning spray holes are formed, so that to-be-cleaned
plastic bottle pieces on a spiral cleaning mesh are subjected to first-stage high-pressure scouring oscillation cleaning, the plastic
bottle pieces lifted by the spiral cleaning mesh flow into a cleaning circular seam through a discharging
pipe, and during cleaning, a rotary
brush cylinder a and a rotary
brush cylinder b rotate at a differential speed; therefore, when the plastic
bottle pieces flow through the cleaning circular seam, the plastic
bottle pieces can be subjected to differential
grinding type secondary cleaning through the rubber soft bristles.