Knitting machines are devices used to create knitted fabrics automatically. They work by interlocking yarns to form various patterns and textures, making the process faster and more efficient than hand knitting. These machines can produce a wide range of items, from clothing to home textiles, and are commonly used in the textile industry. There are different types of knitting machines, including flat knitting machines and circular knitting machines. Flat machines create flat pieces of fabric, while circular machines produce tubular fabrics. Both types can be programmed to create intricate designs, allowing for mass production of knitted goods with consistent quality.