The high-frequency heat sealing machine for vehicle-mounted inflatable mattresses is a specialized device that utilizes high-frequency electromagnetic fields to achieve rapid welding of plastic materials. Its core features, technical principles, application scenarios, and advantages are as follows:
I. Core Features
High-Efficiency Production
Dual/Multi-Slide Table Design: Some models are equipped with dual or quadruple slide table structures, allowing operators to place materials at different workstations simultaneously, achieving "machine operation without stopping even when the operator is off." The capacity of a single machine is increased by 50%-100% compared to single-station models.
Automated Process: Through a PLC control system with preset parameters, the machine automatically completes steps such as slide table movement, machine head lifting, heating, and pressure application, reducing manual intervention and shortening the processing cycle per piece (e.g., from 15 seconds to 8-10 seconds).
Precise Processing
High-Frequency Electromagnetic Field Induction Heating: A 27.12MHz high-frequency electric field causes the internal molecules of materials such as TPU and PVC to polarize and generate heat through friction. The heating speed is extremely fast (reaching the melting point within seconds), and the heat is concentrated on the contact surface, avoiding material deformation or heat damage.
Intelligent Temperature Control System: Equipped with a high-precision temperature sensor and PID control algorithm, the temperature fluctuation range is within ±1℃, ensuring weld strength and sealing (e.g., tensile strength reaches over 85% of the substrate, air leakage rate ≤0.01MPa/24h).
Durable and Stable
Modular Structure: Components such as the slide, die head, and mold adopt a modular design, supporting quick replacement and adjustment, adapting to multi-variety, small-batch production.
Long Lifespan of Core Components: Key components such as electron tubes and molds are manufactured using high-quality materials, with a service life of tens of thousands of cycles, reducing downtime for maintenance.
II. Technical Principles
High-Frequency Heating Mechanism: The high-frequency generator inside the equipment generates a high-frequency current, which is input to the mold through a conduction system, forming a high-frequency electromagnetic field.
Under the action of the electromagnetic field, the plastic material (such as TPU, PVC) generates frictional heat between molecules, rapidly heating to its melting point, achieving welding under mold pressure.
Intelligent Control System: PLC and HMI interfaces enable parameter setting, status monitoring, and fault diagnosis, supporting integration with MES/ERP systems for real-time production data acquisition and analysis.
Equipped with spark protection devices and overcurrent protection circuits to prevent mold damage and equipment failure, extending the lifespan of electron tubes.
III. Application Scenarios
* **Vehicle Inflatable Mattress Manufacturing:** Suitable for sealing and welding vehicle inflatable mattresses, ensuring no leakage after inflation, improving safety and comfort.
**Can process complex curved surface designs and multi-chamber structures (such as zoned support mattresses) to meet personalized needs.
**Other Inflatable Products:**
* **Outdoor Products:** Inflatable mattresses, life jackets, tents, etc., providing portable and durable equipment for outdoor activities.
**Water Sports:** Kayaks, inflatable pools, buoys, etc., ensuring product sealing and durability.
**Medical Field:** Medical air mattresses, pressure ulcer pads, etc., achieving sterile sealing through high-frequency heat sealing, improving patient care quality.
IV. Advantages Summary
* **Efficiency Improvement:** Dual-slide/multi-slide design combined with automated processes significantly shortens production cycles, meeting the needs of large-scale production.
**Intelligent temperature control and high-frequency heating technology reduce heating time, shortening single-piece processing time by 40%-60% compared to traditional processes. Quality Assurance: Precise temperature and pressure control ensure weld strength and sealing, reducing the defect rate from 5%-8% in traditional processes to below 1%.
Modular design supports rapid changeover, adapting to multi-variety production and reducing material waste.
Cost Optimization: High-frequency heating saves 30%-50% more energy than traditional resistance heating.
Long lifespan of core components reduces maintenance costs and downtime, improving overall equipment efficiency (OEE).