The present invention is always discharged to the outside so that the food waste does not accumulate inside the case, and also periodically discharges the food waste accumulated inside the case to minimize the load on the corner wheel so as not to interfere with rotation and load of the disc conveyor and the driving unit. It provides a corner wheel device of an automatic feeder for livestock that minimizes and enables smooth feed transportation and increases durability. The present invention for realizing this is installed on the edge of the feed transport pipe, and on both sides, a case in which an inlet pipe and a discharge pipe through which the disc conveyor passing through the feed transfer pipe passes is formed, and is axially coupled to a space formed inside the case. In the outer diameter of the corner wheel device of the automatic feeder for livestock consisting of a corner wheel for guiding the movement of the disk conveyor, the outer diameter has a gear that is sandwiched between the disk of the disk conveyor passing through the inlet and outlet pipes, It is composed of a hole formed through the bottom of the case, a discharge hole installed at the bottom of the case and communicating with the hole to discharge the feed to the hole through the discharge hole to the outside. In addition, it is preferable to install and further include a food waste discharging means made of a door plate that operates withdrawal to the outside of the discharging chute and closes and opens the discharging hole of the discharging chute while passing through one side of the discharging chute.본 발명은 케이스 내부에 사료찌꺼기가 쌓이지 않도록 항상 외부로 배출되도록 하고, 또한 케이스 내부에 쌓여있는 사료찌꺼기를 주기적으로 배출시켜 코너휠의 부하를 최소화하여 회전을 방해하지 않도록 하며 디스크컨베이어와 구동부의 부하를 최소화하여 원활한 사료 이송이 가능하도록 함과 동시에 내구성을 높이도록 한 가축용 자동 급이기의 코너휠 장치를 제공한다. 이를 구현하기 위한 본 발명은 사료이송관의 모서리에 설치되며 양측에는 상기 사료이송관을 통과하는 디스크컨베이어가 통과하기 위한 유입관 및 배출관이 연장 형성된 케이스, 상기 케이스의 내부에 형성된 공간에 축 결합된 상태로 설치되며 그 외경에는 상기 유입관 및 배출관을 통과하는 디스크컨베이어의 디스크의 사이 사이에 끼워지는 기어이를 가지며 상기 디스크
