Telescopic plastic tube forming apparatus

The invention belongs to the technical field of telescopic plastic tube appliances, and especially relates to a telescopic plastic tube forming apparatus. The telescopic plastic tube forming apparatus includes a synchronous drum, the synchronous drum is connected with a motor, one end portion of the synchronous drum is connected with a first roller, a second roller and a third roller, the other ends of the first roller, the second roller and the third roller gradually get close to each other, the end portions of the other ends of the first roller, the second roller and the third roller are connected to form a isosceles triangle, the isosceles triangle adopts the end portion of the second roller as the vertex, and the first roller, the second roller and the third roller are respectively provided with a plurality of annular slots; and a plastic heating discharging device is arranged beside the synchronous drum. The rollers with reasonable structures make telescopic plastic tubes have good flexibility.