The application of large high-frequency welding machines in medical mattresses for preventing bedsores

Large-bed high-frequency welding machines play a critical role in the medical industry, particularly in the production of anti-bedsore mattresses. Their application advantages are reflected in efficient welding, precise control, environmental safety, and customized support.

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I. Efficient Welding: Meeting Large-Scale Processing Demands

Anti-bedsore mattresses typically adopt a multi-layer PVC/TPU composite structure, requiring high-frequency welding to create independent air cell arrays for pressure distribution and dynamic inflation/deflation. Large-bed machines achieve high efficiency through:

1. Large-Scale Welding Capacity

   • Supports a welding area of 2000mm × 1500mm (customizable), enabling single-step edge sealing or internal air cell welding to reduce process switching time.
   • Production Workflow: Integrates welding, cutting, and inspection processes.

2. Rapid Mold Changeover

   • Modular mold design allows mold replacement for different mattress sizes within 10 minutes, supporting small-batch, multi-variety production.

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II. Precise Control: Ensuring Performance and Safety

Anti-bedsore mattresses rely on air cell pressure distribution to prevent ulcers, demanding strict weld strength, airtightness, and material uniformity. Large-bed machines ensure precision via:

1. Adjustable Pressure & Temperature

   • Pressure: 0.2–0.6 MPa (adjustable).
   • Time: 0.1–10 seconds (adjustable).
   • Material thickness: 0.5–10 mm.
   • Achieves weld strength of 4.2 MPa, withstanding 150 kg load without rupture.

2. Simultaneous Cutting Technology

   • Removes excess material during welding, reducing material costs by 15%+ and eliminating edge defects that compromise airtightness.

3. Laser Positioning System

   • Ensures alignment errors <0.1 mm, meeting air cell symmetry requirements to prevent uneven pressure distribution.

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III. Eco-Friendly & Safety Compliance: Meeting Medical Standards

Direct skin contact necessitates strict material safety and production compliance. Large-bed machines adhere to medical standards through:

1. Zero Solvent Emissions

   • Glue-free welding eliminates chemical residues, complying with REACH, RoHS, and other international standards.

2. Spark Protection System

   • NL5557 high-sensitivity spark protection cuts off high-frequency output within 0.01 seconds, reducing equipment failure rates to <0.5%.

3. EMC Shielding

   • Specialized shielding minimizes human exposure to radiation, aligning with IEC 60601-1-2 electromagnetic compatibility standards.

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IV. Customization: Adapting to Diverse Requirements

Anti-bedsore mattresses require tailored air cell layouts and pressure parameters based on patient needs. Large-bed machines enable customization via:

1. Power & Size Customization

   • Offers 25kW, 35kW, 50kW, 75kW, and 100kW models, with adjustable electrode sizes and frame spans for varied production scales.

2. Non-Standard Mold Development

   • Custom molds designed per client specifications (e.g., wedge-shaped air cell molds for flexible turning functionality).