The powder actuated tool is also know as a nail gun, or a nailer, is a fastening tool that uses blank cartridges, gas, or compressed air as power sources to drive nails into building structures. The working principle of the nail gun is primarily based on the energy released from the combustion of gunpowder, which directly acts on the nail, propelling it at high speed (approximately 500 meters per second) out of the nail barrel to achieve fastening. The nail gun is widely used in construction and woodworking industries due to its self-contained power source, fast operation, short construction period, reliable performance, and safety advantages.
The construction of a nail gun mainly includes components such as the piston, chamber assembly, firing pin, firing pin spring, gun barrel, and gun body casing. Light-duty nail guns may also have semi-automatic piston return and semi-automatic shell ejection mechanisms, while semi-automatic nail guns have semi-automatic feeding mechanisms. When using a nail gun, you need to load the selected drive pins into the nail barrel, load the power cartridges into the chamber, position the nail gun vertically to the work surface, and then pull the trigger to fire. It is important not to load the power cartridges before or after use, during part replacement, or when disconnecting the nail gun.
There’re some other fastening tools such as the electric nail guns. The electric nail gun utilizes the design of the accelerating coil and firing pin track to effectively reduce friction during the movement of the firing pin, reduce heat generation, and extend service life. The working principle is to control the switch to operate the electric nail gun. The striker body is provided with at least two rows of rollers. The outer contours of the rollers are higher than the outer surface of the striker, allowing these rollers to rotate around their pivot axis, effectively reducing friction during the movement of the striker.
The working principle of a nail gun can be summarized in the following steps:
Loading: Load selected drive pins into the gun barrel and load the power cartridges into chamber.
Firing: Press the nail gun firmly and vertically against the work surface and pull the trigger to fire.
Power transmission: The energy released by burning gunpowder acts directly on the nail, pushing the drive pins forward.
Nailing: Pins are pushed out of the gun barrel at high speed to achieve fastening purposes.
To sum up, nail guns use the energy released by the combustion of gunpowder or the drive of an electric motor to drive nails into building structures.
Post time: May-24-2024
