Winding drum for aluminum coil

The utility model discloses a winding drum for an aluminum coil. The winding drum for the aluminum coil comprises a centre shaft, a drum surface, an axial sliding rod, two connection rods, a radial sliding rod and a spring, wherein the cylindrical drum surface is arranged on the outer side of the centre shaft and the drum surface consists of a fixed arc-shaped surface and two movable arc-shaped surfaces, a through hole is formed in the centre of the centre shaft; the axial sliding rod is arranged in the through hole and can slide along the through hole, one end of each of the two connection rods are hinged to the inner side of the movable arc-shaped surface while the other end of the connection rod is hinged to the axial sliding rod; a groove channel is formed in the position, corresponding to the connection rods, of the centre shaft, and can be used for enabling the connection rod to move, blind holes being vertical to the axial line are formed in two ends of the centre shaft, the radial sliding rod is arranged in the blind hole and can slide freely, one end of the radial sliding rod is fixed on the inner side of the movable arc-shaped surface, and the spring is arranged on the radial sliding rod in a sleeving manner. The winding drum for the aluminum coil is simple in structure and convenient to operate, and improves the winding work efficiency.