This product is our company in response to the diversified needs of customers spinning, in the traditional cotton spinning, wool spinning roving frame technology on the basis of research and production, the industry's first long and short fiber general roving frame, suitable for spinning fiber length range of 30-102mm, the machine uses high precision servo control and other high-tech, to achieve the roving frame electronic drafting, Five servo motors are used to directly drive the five systems of ingot wing, one-two roller, three-four roller, bobbin and rib lifting, and the main mechanical transmission system is driven by circular toothed synchronous belt, which realizes the synchronous operation of five motors under the control and coordination of the main controller.