Before and during operation, a heat shrink packaging machine usually needs adjustments to airflow, conveyor speed, and temperature.
Adjust airflow
Airflow affects the shrink result. The machine uses variable frequency speed control to adjust motor speed, but only a small number of models have this function. If airflow is too high, the shrink film heats too quickly and may burst after shrinking. If airflow is too low, the film does not shrink enough in a short time, and a fish-scale pattern appears on the surface. Airflow is also related to fan wheel size and angle. The higher the temperature, the lower the airflow should be.
Adjust conveyor belt speed
Many manufacturers use a frequency inverter or electronic speed controller to control conveyor speed. When a product requires a high shrink result, operators can use a longer shrink tunnel and low-temperature, slow conveying. The speed is usually set to 20 to 60 m/min. We can machine parts such as conveyor rollers, sprockets, and bearing housings according to customer drawings, and we support single-piece and small-batch production. Hansheng Automation machines to drawings, with materials and surface treatments selected for the actual working conditions.
Adjust temperature
Temperature adjustment is important. If temperature is too high or too low, packaging quality suffers. Operators need to adjust it based on product heat resistance, material thickness, conveying speed, and operating airflow. The power of a heat shrink packaging machine is usually 20 to 40 kW. If the product cannot withstand high temperature, operators can use a lower temperature and a thin shrink film. If the shrink film is thicker, they need to raise the temperature and choose a shrink machine with higher power. As conveying speed increases, temperature should increase accordingly.
Our custom precision parts machining capability is not limited to heat shrink packaging machines. Hansheng Automation can machine filling machinery parts, tobacco packaging machinery parts, yacht precision parts, and RC car precision parts to drawings. We can also machine non-standard parts for food machinery, printing machinery, and medical devices. We machine to drawings with attention to dimensional consistency and delivery responsiveness.
