POY spinning device improved by FDY spinning device

The utility model relates to a POY (Polyester Oriented Yarn) producing device modified by an FDY (Fully Drawn Yarn) device, in particular to a POY spinning device improved by the FDY spinning device. The POY spinning device dispenses with an oil tanker of the original FDY spinning device, and adopts the structure that an oil nozzle is additionally arranged above a channel for oil feeding, and a lower yarn guide hook and a comb-type yarn separator of a pre-network in front of a first hot roller are moved out through addition of an extension rod, so that the spinning center line is moved out; and meanwhile, a second hot roller of the original FDY spinning device is not used, the first hot roller and a second godet are reserved, tows pass through the first hot roller in one attempt and are wound by 4-5 circles at the second godet, and after the spinning center line is further moved out, the tows enter winding heads to be wound. The POY spinning device can produce high-quality POY on a hot-roller type FDY equipment, has less modification investment, adopts a simple method, is high in modification speed, and achieves flexible production of FDY and POY products.