Spindle is one of the main working parts of the knitting machine, its structure is many, due to the vertical and horizontal, the structure of the spindle is also different, all kinds of knitting material knitting machine spindle is also different. 　　The spindle in the weaving machine can achieve the function of the filament stowage, and make the filament maintain a certain tension, so that the filament in the weaving process under uniform force. 　　The weaving spindle is mainly composed of a thread tension compensation device and a spool brake clutch. The tension compensation device enables the winding of the threads on the spindle with a relatively constant tension. The spool braking clutch controls the winding and releasing of the threads; the strands of the spool are evenly woven onto the mandrel.

How to develop knitting machinery has always been a topic of general concern. Recently, I interviewed the vice president of China Knitting Industry Association on the key research and development topics and technical guidance of knitting machinery industry. The following is the brief content of the interview.

As there are many ways of textile change, it is not easy to mass produce, and the popular fashion has been innovated from time to time, so the product life cycle is short, so there can not be an independent manufacturer that can cover all the operation activities, resulting in economies of scale to reduce costs, so there are many small-scale manufacturers in the industry, mutual OEM, cooperation and competition.

With the continuous improvement of people's demand for knitted products and the gradual strengthening of the trend of textile industry towards refinement and deep processing, knitted products have gradually emerged the characteristics of underwear and garment fashion. The diversified demand of knitting products has brought huge development space for knitting machinery. At present, knitting machinery is developing in the direction of high speed, high efficiency, intelligence, high precision, diversification, differentiation, easy operation, easy maintenance, good stability and high reliability.

William Lee (1550-1610), a Nottingham man, graduated from Cambridge with a degree in theology, so he was primarily a priest, not an engineer. His mother and daughter usually knit woolen clothes at home. They worked very hard. William Lee wanted to lighten their work load, so he invented knitting machine.