Cable insulating material melting device

The utility model belongs to the field of cable processing, and particularly relates to a cable insulating material melting device which comprises a melting box. A feeding opening is formed in the top end of the melting box, the melting box is communicated with the interior of the feeding opening, a melting pipe is arranged at the bottom end of the melting box, and an auger is arranged in the melting pipe; through the structural design of the first cutting knife and the second cutting knife, a cable enters the interior of the feeding port from the cutting port, the outer side of the cable makes contact with the first cutting knife and the second cutting knife at the moment, the first cutting knife and the second cutting knife cut the two sides of the cable along with continuous pushing of the cable, and an electric wire in the cable penetrates through the feeding port and is discharged; and an insulating material on the outer side of the cable is blocked by the inner wall of the feeding hole and falls into th