Plastic Granule Automatic Weighing and Packaging Machine

A complete plastic homogenization, weighing, and packaging 

system consists of the following components:

1. Homogenization (Premixing): Upstream materials are transported via lifting equipment (such as elevators or pneumatic conveying systems) into a large storage silo or mixing bin. A stirring device may be installed within the bin to provide preliminary mixing of the particles, reducing fluctuations in particle size, color, or proportion, and providing a uniform material for subsequent accurate weighing.

2. Automatic Weighing: The uniform material is fed into the weighing hopper via a feeding mechanism (such as a belt conveyor, screw feeder, or vibrating feeder). High-precision weighing sensors and an intelligent control system (typically a PLC or dedicated weighing instrument) control the three-stage feeding mode: fast, medium, and slow, ensuring high-speed and accurate weighing and effectively reducing errors.

3. Bagging and Clamping: When the weight meets the target, the system generates a signal. The operator puts on the bag (or a robotic arm automatically removes and puts the bag on), and the equipment automatically clamps the bag opening to prevent dust from escaping and ensure accurate bag placement. 4. Filling and Compacting: The discharge door below the weighing hopper opens, and the material is poured into the bag. Some equipment is equipped with a compacting or beating device to shake the bagged material to compact it, expel air from the bag, increase the bagging capacity, and flatten the bag shape for stacking and transportation.

5. Sealing and Conveying: The filled bags are automatically transported by conveyor belt to a seaming machine, heat sealer, or banding machine for sealing. The conveyor belt then transports the finished bags to a designated area for palletizing or direct loading.

Automated Extrusion Granulation Production Line - Case Reference

Plastic granulation workshop

Automated system for raw material storage, automatic conveying, lossless homogenization, mixing, screening, weighing, and packaging

Automated Plastic Granulation Workshop

Raw Material Storage - Automatic Conveying - Non-Loss Homogenization - Mixing - Screening - Weighing and Packaging Automated System

Extrusion granulation-automated workshop