Do you really understand the variable force spring？

The variable force springs can break through the traditional spring affected by Hooke ‘ s law, so that the stroke and force are no longer proportional to increase, but can achieve a variety of elastic displacement combinations such as negative slope stepped fixed force. According to the needs of mechanical engineering, the relationship between elastic force and displacement stroke can be used to design various elastic curve changes in specific occasions, which is the output force value can be arbitrarily desired.

    The variable force springs can be customized for various elastic curve changes according to specific occasions, such as department store shelves propulsion device, pen-type drug syringe ( insulin ) and cordless curtain. 

    What are the reasons for using variable force springs in these applications ? What are they trying to achieve ?

    In the point of purchase display, variable force springs are commonly used in trays that push product forward in a controlled manner. Variable force spring corporated into pusher trays aid in front-facing the product, allowing shelves to look stocked at all times. These trays allow for a more organized store inventory, as well as assist in keeping track of inventory needs. Variable Force springs are designed around the weight of the products they are pushing. This means that they are always designed in a way where the product never gets slammed or compromised while being selected. These springs allow for most any product to be pushed consistently, regardless of the weight.  Allow for the product to be shopped hassle–free by the customer. Products include cosmetics, health/medicines, beverage, food and much more.

    In the Pen Type Drug Injector, the variable force springs is pressed and set on the rebound rod in the mandrel, which changes the traditional method of ringing the pressed compression spring on the needle holder. In other words, the potential tension of the pressed compression spring on the injection needle holder is removed, and the force against the injection needle retraction is increased. The safety of the product is improved, which has good practical value and economic value.

    In the cordless curtain, our variable force springs products and components, as well as lifting system, can be widely used to solve the traditional lifting system of steel wire spring many problems and pain points. The application of the second generation of handpower integration is more prominent, in the absence of electricity can also manually free up and down, arbitrary positioning, cost is only 50 % of the market similar products. Especially more suitable for high-speed rail, rail vehicle side curtains have greater advantages, more suitable for cost.

    Qianye Precision Co., Ltd. has been engaged in the research of stainless steel sheet coil springs for nearly 13 years. Since the initial research and development of materials, through cooperation with large domestic steel plants, the nationalization production of 301 superhard stainless steel materials has been solved, which can fully meet and meet the performance requirements of such spring products. In any segment of the variable spring, we have fully mastered the technical requirements of such products, our engineer team has more than ten years of product development and manufacturing experience, can develop customized solutions for you to meet your personalized needs. The spirit of our company is ‘ treating people with sincerity and creating things with sincerity ‘, striving for excellence and providing better services to you.