Carbon fiber pre-oxidized fiber stretching pretreatment equipment

The utility model relates to carbon fiber pre-oxidized fiber stretching pretreatment equipment, and relates to the technical field of stretching equipment, the carbon fiber pre-oxidized fiber stretching pretreatment equipment comprises a rack, the bottom end is provided with a base; the stretching rollers are rotationally connected to the rack and arranged on the two sides of the rack in a staggered mode in the vertical direction, cavities are formed in the stretching rollers, and the two ends of each stretching roller are open; the driving assemblies are arranged on the rack, correspond to the stretching rollers and are used for driving the stretching rollers to rotate; the oil supply assembly is arranged on the rack and used for providing heat conduction oil for internal circulation of the stretching roller; the driving assembly comprises a driving motor and a transmission piece, and the transmission mode of the transmission piece is belt transmission or chain transmission. The pre-stretching device has the