I. Equipment Definition and Function
The **Double-Layer Roof Panel Forming Machine** is an automated device designed to produce double-layer metal roof panels through roll-forming technology. It processes two layers of metal sheets (or a combination of metal and composite materials) simultaneously to create roof panels with air gaps, insulation layers, or reinforced structures. These panels are widely used in industrial buildings, warehouses, cold storage facilities, sports stadiums, and other large-scale constructions, offering **thermal insulation, soundproofing, wind resistance, and waterproofing** properties.
II. Core Working Principles**
1. **Dual-Layer Synchronized Forming**
- **Independent Feeding for Upper and Lower Layers**: Two separate decoiling systems feed metal coils (e.g., color-coated steel, galvanized steel).
- **Composite Structure Design**: Some models support adding insulation materials (e.g., rock wool, polyurethane foam) between the layers, bonded via roll-forming to create "sandwich" panels.
- **Air Gap Formation**: Without filler materials, the machine controls the spacing between layers to form hollow sections for enhanced thermal performance.
2. **Forming and Joining Processes**
- **Roll Forming**: Both layers pass through multiple sets of rollers to gradually shape edges, interlocks, or corrugated profiles, ensuring airtight assembly.
- **Mechanical Interlocking or Welding**: Advanced models integrate edge-sealing via mechanical locks or high-frequency welding for structural integrity.
3. Fully Automated Workflow
Decoiling → Leveling → Preheating (if bonding) → Dual-layer roll forming → Filler injection (optional) → Lengthwise cutting → Stacking, all controlled by PLC.
III. Key Equipment Components
1. **Dual Decoiling System**
- Independently servo-driven with adjustable tension control to prevent material misalignment.
2. **Filler Injection Module (Optional)**
- Foaming or adhesive spraying systems synchronized with roll-forming for insulation integration.
3. **Dual-Layer Roll Forming Units**
- Separate roller paths for upper and lower layers, merging at the output stage.
4. **Composite Bonding Unit**
- Hydraulic/pneumatic pressure rollers to ensure tight adhesion between layers.
5. **High-Precision Cutting System**
- Flying saw or laser cutting for burr-free, synchronized cuts on dual-layer panels.
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