Demoulding controller for prefabricated stair steel mould

The utility model discloses a prefabricated stair steel mould demoulding controller which comprises an adjusting screw rod, one end of the adjusting screw rod is sleeved with an adjustable cylinder, and the adjustable cylinder is fixed above a bottom mould through a first steel plate fixing device; the other end of the adjusting screw rod is sleeved with two fixing sleeves, and the two fixing sleeves are fixed through a second steel plate fixing device. A front plate of the second steel plate fixing device is arranged between the two fixing sleeves in a sleeved mode, and side plates of the second steel plate fixing device are fixedly connected with the bottom die and the side dies respectively. The first steel plate fixing device and the second steel plate fixing device are arranged on the same straight line. The steel mould side mould demoulding device can fully demould a steel mould side mould, can limit the demoulding of the side mould, is simple to operate, and is convenient for the side mould to return t