The Bronze Age of metal spring

Like most other basic mechanisms, metal springs have existed for a long time in the bronze age. Even metal, wood is used as a structural component of flexible bows and military catapults. In the Renaissance, precise clocks and clocks made precision springs inevitable for the first time.


The fourteenth century saw the development of revolutionary astronomical navigation with precise clocks. The world’s exploration and conquest of European colonial powers continued to provide power for the watchmaker “science and art.”. Another area of firearms is the development of springs. With the advent of the industrial revolution in the 18th century, it was proposed that the spring should be large, accurate and cheap. Since Clockmakers’ springs are often made by hand, large-scale production of springs is made of piano steel wire or similar materials.


Advanced manufacturing methods make the spring everywhere. The computer control line and sheet bending machine allow the processing of custom springs, which is obviously a special machine. Spring is just an accumulator, it has the function of storing energy, but it can’t release energy slowly. To realize this function, we should rely on “Spring + large transmission ratio mechanism”, which is common in mechanical watch. Spring has been used for a long time.


Ancient bow and crossbow are two kinds of spring in broad sense. Strictly speaking, the inventor of spring should be Robert Hooke, a British scientist. Although the spiral compression spring had appeared and was widely used at that time, Hooke put forward the “Hooke’s law” – the elongation of the spring is proportional to the magnitude of the force it is subjected to. According to this principle, in 1776, the spring scale using the spiral compression spring was invented. Soon, the spring made according to this principle was also invented by hooker himself.


The spring that conforms to Hooke’s law is the spring in the real sense. Disc spring is invented by French Belleville. It is a washer spring with truncated cone section made of metal sheet or forging blank. After the appearance of modern industry, in addition to the disc spring, new springs such as gas spring, rubber spring, scroll spring, die spring, stainless steel spring, air spring, memory alloy spring and so on appeared