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The high-frequency embossing machine for car floor mats is a processing device specifically designed for interior parts such as car floor mats. Its core principle utilizes a high-frequency electromagnetic field to generate heat through friction between material molecules, combined with mold pressure to achieve welding and embossing. The following is a detailed description of its key characteristics, application scenarios, and technological advantages:
I. Core Working Principle
**High-Frequency Heating:** The equipment has a built-in high-frequency oscillation circuit that generates electromagnetic waves of 27.12MHz or 40.68MHz. When these electromagnetic waves act on materials such as PVC, TPU, and EVA, the polar molecules inside the material (such as chlorine atoms in PVC) vibrate rapidly, generating heat through friction and softening the material surface to a molten state.
**Pressure Molding:** While the material softens, the upper and lower molds close, applying pressure to shape the material according to the mold, creating welding, heat sealing, or embossing effects. For example, anti-slip patterns and brand logos on car floor mats can be achieved through customized molds.
**Cooling and Shaping:** After processing, the molds open, and the material quickly sets under natural cooling or auxiliary cooling equipment, ensuring a long-lasting and stable embossing effect.
**Cooling and Shaping:** After processing, the molds open, and the material quickly sets under natural cooling or auxiliary cooling equipment, ensuring a long-lasting and stable embossing effect. II. Technological Advantages
High-Efficiency Production
High-Frequency Heating: Materials can reach a molten state within 1-5 seconds, significantly shortening the processing cycle.
Automated Continuous Operation: Some models adopt a sliding table or turntable design, enabling mold reciprocating movement and supporting batch production.
Precision Processing
Customized Molds: Complex patterns can be designed according to customer needs, ensuring clear and accurate embossing effects.
Precise Pressure Control: Wide pressure adjustment range (e.g., 400kg-2000kg) through pneumatic-hydraulic booster cylinders or hydraulic systems, adaptable to different material thicknesses.
Environmentally Friendly and Safe
No Chemical Adhesives: Relies on molecular friction for heat generation, avoiding solvent evaporation and meeting environmental protection requirements.
Multiple Safety Protections:
Spark Suppressor: Automatically cuts off the high-frequency circuit when a spark is detected, reducing mold wear.
Overload Protection: Automatically cuts off power when current exceeds limits, protecting the oscillating tube and rectifier.
Grounding Device: Ensures operational safety and prevents static electricity accumulation.
Wide Material Adaptability
Suitable for soft materials such as PVC, TPU, EVA, and PETG, as well as composite materials containing more than 30% PVC.
Processable products include: car floor mats, carpets, door mats, seat cushions, steering wheel covers, etc.
III. Typical Application Scenarios
Car Floor Mat Processing
Anti-slip Texture Embossing: Stripes or granular textures are embossed onto the floor mat surface using a mold to enhance friction.
Brand Logo Welding: PVC film is fused to the floor mat substrate to form a three-dimensional logo.
Multi-layer Material Composite: PVC layers are fused with sponge layers, loop layers, etc., to improve floor mat comfort.
Other Automotive Interior Parts
Sun Visor Welding: The edges of PVC sun visors are fused to prevent delamination.
Door Panel Armrest Covering: Leather or fabric is fused to a plastic substrate for seamless covering.
Trunk Mat Molding: Customized trunk mats are produced using a thermoforming process.
IV. Equipment Selection Recommendations
Power Selection
Small Equipment (5-8KW): Suitable for single-layer PVC floor mat embossing, with smaller processing sizes (e.g., 40cm × 60cm). Large-scale equipment (12-35KW): Supports multi-layer composite material processing and can handle large-size foot pads (e.g., 90cm × 150cm).
Machine Configurations:
Single-head push-table type: Simple structure, low cost, suitable for small-batch production.
Double-head slide table type: High efficiency, continuous operation, suitable for large-scale production.
Automatic rotary table type: Integrated loading and unloading system for fully automated production.
Additional Functions:
PLC touch screen control: Simplifies operation process, supports parameter storage and retrieval.
Quick mold change system: Shortens mold change time and improves production flexibility.
Cooling auxiliary device: Accelerates material setting and improves production efficiency.