Umbrella Head Roofing Nail Production Line

Wire drawing

Wire drawing is the initial step in producing umbrella head roofing nails. The wire drawing machine reduces the diameter of the raw material steel wire Q195/SAE1008 to the required size. Unlike a typical wire drawing machine, this process requires a twisting device to create a spiral shape in the steel wire. This is done to enhance the grip of the roofing nail on the wood.

Cap making

Making umbrella head roofing nails involves two preparatory steps: nail cap making and wire drawing. The cap-making machine is specifically designed for this purpose, using punched steel plates to form the nail caps.

Roofing nail making

The wire is fed into the roofing nail-making machine, storing the resulting nails in its box. This machine is specifically designed to produce umbrella head roofing nails. Its working principle involves four steps: (1) placing the wire rod on a reel, (2) feeding it into the machine, (3) making the nails, and (4) storing the nail caps in the box. When the nail mold grips the drawn wire, the roofing nail caps are individually punched onto the nail shank using a pin punch. The feeding box then feeds forward the steel wire, and the nail cutter cuts the nail to the desired length and point. Finally, the umbrella head roofing nails are collected in the box at the end of the conveyor belt.

Nail polishing

After the roofing nails are made, they are polished using a machine with sawdust in a polishing barrel. This process removes sharp edges and gives the nails a smooth and shiny surface.

Galvanization

The roofing nails’ umbrella heads are galvanized using electro-galvanizing technology to ensure they are corrosion-resistant and can withstand years of rain, snow, and sun exposure. The nails are washed with water and placed in a drum containing a zinc salt electrolyte solution for galvanization. The process begins by applying an electric current, which reduces the zinc ions in the solution and deposits them uniformly onto the nail surface, creating a thin zinc layer. The galvanized nails are placed in various liquid-filled buckets and undergo water washing, light extraction, water washing, and passivation. Finally, the nails are washed with hot water and dried in a spin dryer. The galvanization process for the roofing nails is now complete.

Packaging

After galvanization, the umbrella head roofing nails are packaged in cartons of varying sizes and weights, including 1 kg, 5 kg, 20 kg, or 25 kg per carton.