Analysis of the heat sealing production process for the inner membrane material of inflatable massage equipment

High-frequency heat sealing equipment uses a high-frequency electromagnetic field (typically 27.12MHz or 40.68MHz) to excite the polarization and frictional heating of plastic material molecules, achieving glue-free welding. This technology is particularly suitable for plastics containing PVC, such as PVC and TPU. It generates heat through molecular vibration, causing the materials to fuse under mold pressure, forming an airtight structure.

Specific Applications in Inflatable Massager Production: Airbag Welding
Application Scenarios: Core components of inflatable massagers (such as leg and waist airbags) require high-frequency heat sealing to achieve sealing welding of multiple layers of TPU/PVC film.

Advantages: High weld strength (peel strength ≥15N/15mm), weld width can reach over 8mm, ensuring no air leakage during repeated inflation and deflation of the airbag.

Case Study: Medical leg sleeve airbags are welded using a high-frequency heat sealing machine to form a multi-cavity airbag structure, achieving foot acupoint massage and blood circulation promotion functions.

Complex Structure Molding

Application Scenarios: Massagers require integrated air ducts, valves, and other complex structures. High-frequency welding equipment can simultaneously complete welding and punching.

Advantages: Supports welding of multi-layer materials (such as PVC + fabric), enabling one-time molding and simplifying the production process.

Example: The pressure band of an air wave pressure massager is welded using high-frequency welding to form evenly distributed airbag chambers, ensuring precise transmission of massage pressure.

High-Efficiency Automated Production

Equipment Features: A dual-push-plate, dual-workstation design, combined with a PLC control system, allows for rapid mold changes and adaptive parameter adjustment.

Efficiency Improvement: Welding time can be reduced to 0-10 seconds. With a pneumatic pressurization system, a single machine can produce thousands of pieces per day.

Example: A high-frequency synchronous welding machine is used in car seat inflatable massage modules to achieve a seamless connection between the airbags and leather fabric, improving product durability.