First, use a fruit knife to cut along the gap in the handle of the kettle, and then remove the button. After removing the button, the position of installing the spring will appear, and then install the spring to be installed in the original position.

Springs are mechanical parts that work by elasticity. Parts made of elastic materials deform under the action of external force, and then return to their original state after the external force is removed. Also called "spring". Usually made of spring steel. The types of springs are complex and diverse. According to the shape, there are mainly spiral springs, scroll springs, leaf springs and irregular springs.

As an important part in the industrial system, springs are used in large quantities and in a wide variety, so the production of springs is gradually automated from the original manual production. In China 90 years ago, there were few mechanical equipment specialized in producing springs in the spring industry. With the increasing expansion of the spring market, professional spring equipment enterprises gradually entered China, such as Northeast Spring Machinery (Ding Qiao) and Hong Guang (KHM), and gradually occupied the mainstream spring production market.