Application Equipment: Pneumatic Heat Shrink Tubing Machine for Packaging Machinery

Product Model Used: AI-208

Process Overview:
The pneumatic heat shrink tubing machine uses an integrated heating device that combines heating tubes and thermocouples. Inside the machine, solid-state relays (SSRs) are used to control the on-off switching for heating. The heating tubes have a fast heating efficiency, capable of reaching 400°C within 5 seconds. After setting the desired control temperature, the infrared sensor on the equipment’s workbench operates the pneumatic valve to blow air. When wire harnesses pass through the workbench, the heat from the heating tubes is blown onto the workbench via the pneumatic valve, creating a 360° hot vortex that achieves rapid heat shrinking within 3 seconds.

Specific Field Application Description:
If the stored heat in the heating tube is too high, PET mesh tubes may become scorched; if the temperature is too low, the required degree of heat shrinkage cannot be achieved, leading to a decrease in product yield. Therefore, the stability of temperature control directly determines the yield rate of the heat-shrinking process. Previously, the customer used a lower-end temperature control brand, which caused overheating by 20-30°C. This resulted in a low yield rate for wire harness heat shrinking and unstable control performance.

Problems Solved for the Customer:
The Yudian AI-208D21G1L21 instrument uses solid-state relay output and includes one alarm contact. Based on the PID parameters tuned to match the customer’s workshop, stable temperature control can be achieved through self-tuning. The over-temperature is kept within 3°C, significantly reducing the difficulty of after-sales service for the equipment.

Value Delivered to the Customer:
Stable temperature control has improved the yield rate of heat-shrunk products by 50%. Additionally, the customer’s heat shrink tubing machine has high energy-saving requirements. With Yudian’s instrument, the power consumption during control does not exceed 5W, meeting the customer’s energy-saving requirements for hourly power consumption.