Steel ball screening machine

The invention discloses a steel ball screening machine. The steel ball screening machine comprises a first guide plate and a second guide plate, the first guide plate is arranged in a horizontal manner, the second guide plate is fixedly connected with the first guide plate, the second guide plate is downwardly arranged in an inclination manner, an included angle is formed between the second guide plate and the first guide plate, the second guide plate is formed by the welding of a plurality of support plates at intervals and a plurality of circular rods, the circular rods are positioned on the support plates, and gaps allowing steel balls of the normal specification to roll are reserved between each two adjacent circular rods. According to the steel ball screening machine, the first guide plate is arranged in the horizontal manner so that the steel balls are released from the same initial position at a zero speed, the second guide plate is downwardly arranged in the inclination manner so that the steel balls can smoothly roll down, the gaps between each two adjacent circular rods enable the steel balls whose dimension is smaller than the dimension of the qualified product to fall, the screening of the steel balls can be rapidly realized, the efficiency is improved, and the time and resources are saved.