Coil Nail Production Line
What is the coil nail production line?
The coil nail production line manufactures coil nails using various machines, such as the wire drawing machine, nail making machine, nail polishing machine, thread rolling machine, and coil nail making machine. Coil nails are arranged in a circle and connected by a copper-coated iron wire. There are four main shapes: small, big, jumbo, and conical coil nails. There are three main types of coil nails: smooth shank, ring shank, and screw shank. These nails are used with a nail gun to fasten wood or pallets together. They are commonly used in furniture assembly, timber frame construction, wire reel manufacturing, and the production of wood pallets, crates, and packaging.
What are the machines of the coil nail production line?
Five primary machines are used in manufacturing coil nails: the wire drawing machine, nail making machine, nail polishing machine, thread rolling machine, and coil nail making machine. The wire drawing machine reduces the diameter of the steel wire to the desired size, while the nail making machine cuts the wire into lengths, makes the nail head, and sharpens the point. The nail polishing machine is used to make the nails smooth and bright, and the thread rolling machine is used to form different types of nails. The machine for making coil nails utilizes copper-coated welding wire to weld threaded nails and then rolls them into a coil.
How to manufacture coil nails?
The production process for coil nails can be divided into six steps:
- Wire Drawing: The production process starts with wire drawing. The 6.5mm steel wire is drawn by the wire drawing machine to smaller diameter wire rods, such as 2.8mm, 3.1mm, 3.4mm, 3.7mm, 4.1mm, and 4.5mm, which can be fed into the nail-making machines. Any diameter needed for making nails can be obtained by changing the drawing dies. Drawing powder reduces friction between the steel wire and the drawing die, prolonging the service life of the drawing die.
- Nail Making: The wire is fed into the nail-making machine, which cuts it to the desired length, forms the nail head using the pin punch, and sharpens the tip with the nail cutter. The nail box determines nail length. The machine operates at high speed and can quickly produce many nails. To ensure the production of high-quality nails, it is essential to replace quick-wear parts such as the nail cutter, nail die, and pin punch on time.
- Nail Polishing: After the nail making process, the semi-finished nails undergo a polishing stage. The nail polishing machine uses sawdust, engine oil, paraffin, or other materials to remove any burrs or imperfections on the nails. Sawdust removes sharp edges, engine oil brightens wire nails and gives them a shiny surface, and paraffin increases the rust resistance of wire nails. As a result, the finished wire nails are bright and have a smooth surface.
- Thread Rolling: After polishing, wire nails are threaded using a thread rolling machine that employs cold working technology to create screw shank, ring shank, and spiral shank nails. The machine has a vibration plate that automatically arranges the nails in a roll. The nails then go through various thread-rolling molds to form different screws. It is important to note that this process does not wear out the wires. If smooth shank coil nails are being made, the step of thread rolling is not necessary.
- Coil Nail Making: The coil nail making machine transforms threaded nails into coil nails through a five-part process. First, the vibrating plate arranges the messy nails in order. Then, the nails are guided to the welding wheel, which is welded by the copper-coated welding wire into wire row nails. Thirdly, the wire row nails pass through the oil box and counting device before rolling into a coil. Fourthly, the machine will automatically cut the nails once the desired quantity is reached. Finally, the operator adds a rubber band to the finished coil nails. Coil nails are advantageous for many applications because they can be quickly and easily loaded into nail guns or other automated tools.
- Quality Control and Packaging: The last step in the process is quality control and packaging. The finished coil nails undergo inspection to ensure they meet all quality standards. The inspection can be done manually or with automated machinery. Once the coil nails pass inspection, they are packaged in cartons containing twenty coil nails.
The Quick-Wear Parts in the Production of Coil Nail
To ensure the production of high-quality coil nails, it is crucial to regularly maintain and inspect all parts of the production line, particularly the quick-wear parts. Timely detection and resolution of worn pieces minimize downtime and keep production lines running smoothly. The following are the most common wearing parts on the coil nail production line:
- Wire drawing dies: The wire drawing die reduces the diameter of the steel wire during the wire drawing process. Over time, the die can wear out due to continuous friction with the metal wire in the wire drawing machine.
- Nail cutter: The nail cutter cuts cold-drawn wire into wire nails during nail-making. As the knives become dull due to the continuous cutting process in the nail making machine, they require replacement to maintain the quality of the cut.
- Nail mold: The nail mold is designed to grip the drawn wire during punching and may wear out due to the constant operation of the nail making machine, requiring periodic replacement.
- PinPunch: The pin punch forms the nail head in the nail making machine. Due to constant impact, it may wear out or break, requiring prompt replacement of the punch bar.
Quick-Wear Parts List of Wire Drawing Machine
| No. | Item | Life Time | Material/Model |
|---|---|---|---|
| 1 | Wire drawing dies | 15-20 tons | Tungsten carbide |
Quick-Wear Parts List of Nail Making Machine
| No. | Item | Life Time | Material/Model |
|---|---|---|---|
| 1 | Nail cutter | 1-2 Months | Alloy/steel |
| 2 | Nail mold | 3 Months | Tungsten carbide/HSS |
| 3 | Pin punch | 6 Months | Tungsten carbide/HSS |
Quick-Wear Parts List of Thread Rolling Machine
| No. | Item | Life Time | Material/ Model |
|---|---|---|---|
| 1 | Thread Rolling Die | 6 Months | Alloy/Cold mold steel |
| 2 | Magnetic plate | 6 Months | Moulds steel |
| 3 | Nails push plate | 6 Months | Moulds steel |
| 4 | Sensor | 12 Months | M18,NPN |
| 5 | Relay | 12 Months | DC24,10A |
| 6 | Spring | 12 Months | Spring steel |
Remarks: Each purchase of 2 machines comes with 2 free items.
Quick-Wear Parts List of Coil Nail Making Machine
| No. | Item | Life Time | Material/Model |
|---|---|---|---|
| 1 | Nail Holder/Main Disc Wheel | 12 Months | Stainless Steel |
| 2 | Welding Wheel | 6 Months | Chromium Copper |
| 3 | Magnetic Shaft | 12 Months | #45 Steel, Strong Magnet |
| 4 | Spring Plate 10*45*400 | 12 Months or longer | Spring Steel |