How to maintain uniform ventilation in the air ring of a single-screw double-die-head film blowing machine?

During the operation of a single-screw double-die-head film blowing machine, uniform ventilation in the air ring is a critical factor in ensuring the quality of plastic film. This equipment uses a precise air cooling system to control the thickness and strength of the film. Uneven ventilation can lead to localized overheating or insufficient cooling of the film, resulting in uneven thickness, wrinkling, or brittleness. To maintain uniformity, operators must address this issue from the source, including checking the cleanliness of the air supply system, preventing dust and impurities from clogging the air ducts, and ensuring smooth operation of the blower. This not only improves equipment stability but also extends the life of the air ring, thereby reducing waste and downtime during production.

Specifically, maintaining uniform ventilation involves regularly cleaning the air nozzles and air ducts within the air ring to ensure even and unobstructed airflow. For example, routine maintenance of a single-screw, double-die-head film blowing machine involves using compressed air or a soft brush to remove accumulated plastic residue. Meanwhile, data from the air velocity sensor should be monitored to adjust the air volume to ensure uniform coverage across the entire die area. This meticulous work prevents airflow deviations and avoids film defects such as bubbles or deformation caused by uneven cooling. Furthermore, operators should monitor environmental factors, such as temperature and humidity fluctuations in the workspace, and promptly optimize air ring settings to ensure a consistently efficient film blowing process.

In the long term, establishing a preventive maintenance program is an effective strategy for maintaining uniform airflow in the air ring of a single-screw, double-die-head film blowing machine. Regularly calibrating the air velocity control system and training operators on standard procedures not only improves equipment performance but also reduces the risk of unexpected failures. This holistic maintenance approach not only ensures uniform film production but also enhances the operational efficiency of the entire single-screw, double-die-head film blowing machine, resulting in stable output and economic benefits for the company.