The system integrates three core assembly steps into a fully automated cycle
• Nail feeding – Nails are sorted and oriented for assembly
• Metal washer placement – Colored washers are picked, oriented, and placed onto nails
• Rubber gasket assembly – Gaskets are applied to complete the weather seal
What sets this machine apart is its ability to handle thin, flexible metal washers of varying colors and types—a challenge that traditional mechanical feeding systems cannot reliably solve.
How It Works: The Assembly Sequence
Step 1: Nail Feeding and Positioning
Nails are loaded into a vibratory bowl feeder, oriented head-down, and delivered to the assembly station.
Step 2: Washer Vision Inspection and Pickup
Metal washers are presented on a vibratory feeding track or tray
The vision system captures an image, determines orientation and color
Delta robot with vacuum gripper picks the correctly oriented washer
Step 3: Washer Placement
The delta robot places the washer onto the nail shank, ensuring the decorative side faces outward.
Step 4: Rubber Gasket Assembly
Rubber gaskets are fed, positioned, and pressed onto the nail to complete the weather seal.
Step 5: Finished Part Ejection
Completed roofing nails are ejected into collection bins or conveyed to packaging.
Key Advantages Summary
Feature | Benefit |
Vision-guided delta robot | Handles thin, flexible washers that mechanical grippers cannot |
Real-time color recognition | Ensures correct washer color for each production batch |
Orientation detection | Guarantees decorative side faces outward every time |
Vacuum gripper system | Gentle handling prevents damage to thin metal parts |
Quick changeover | Run multiple washer types and colors on one machine |
High-speed operation | Up to 80 assemblies per minute for maximum productivity |
This vision-guided assembly machine represents a significant advancement in automated fastener assembly.
By combining high-speed delta robotics, precision vacuum handling, and intelligent vision inspection, it solves the long-standing challenge of reliably assembling thin, multi-color washers onto nails—all while maintaining the flexibility to handle multiple product variations.
The result is a production solution that delivers
Consistent quality through automated inspection
High speed without compromising accuracy
Flexibility to adapt to changing product requirements
Reduced labor costs through full automation
