Function explanation of hardware springs

Hardware springs, also known as metal springs. It is a mechanical component that uses elasticity to work. And it has various functions

Compression function

Observing various electrical switches, it can be found that one of the two contacts of the switch must be equipped with a spring to ensure that the two contacts are in close contact and have good conductivity. If the contact is poor, the resistance at the contact increases, the heat generated when the current passes through increases, and in severe cases, the metal at the contact may melt. The two metal pillars of the bayonet lamp head are also equipped with springs for good contact; As for the central metal plate of the screw head and the plug-in metal plates of all sockets, they are all spring plates, whose function is to make close contact between both parties to maintain good consistency. When is there a phosphor bronze spring in the magnetic tape that uses the elastic force generated by its bending deformation to make the magnetic head in close contact with the tape. There is a long spiral spring in the stapler, which serves to tighten the staples on one hand, and on the other hand, when the front staple is pushed out, it can send the back staples to the front for comfortable pushing out. In this way, it can automatically push each staple to the front until all the staples are pushed out. Many machines automatically feed materials, and in addition, clips such as clothing clamps, ballpoint pens, and clips on pen covers are clamped onto clothes using the compression function of springs

Drive function

Mechanical clocks and winding toys are driven by winding the mainspring. When the mainspring is wound, it undergoes bending deformation and stores a certain amount of elastic potential energy. After release, the elastic potential energy is converted into kinetic energy and driven to rotate through the transmission device.

reset function

The spring undergoes deformation under external force, and once the external force is removed, the spring can return to its original state. Many tools and devices use the property of springs to reset. For example, many building doors are equipped with reset springs on the hinges, which automatically reset when people enter and exit. People have also used this function to make products such as automatic umbrellas and pencils, which are very convenient. In addition, various buttons and keys also require reset springs.

Buffer function

There are springs installed between the frame and wheels of locomotives and cars, which use the elasticity of the springs to reduce the bumps of the vehicle.

Measurement function

We know that within the elastic limit, the extension (or contraction) of a spring is proportional to the external force. Using the property of springs to make spring scales.

Vibration sound function

When air flows through the spring holes in a harmonica or accordion, it impacts the spring leaves, causing them to vibrate and produce sound.