The present invention relates to a screw-type feed unit for aquaculture farms that feeds feed into the inside of a screw feeder through a feed hopper from a feed reservoir into a culture tank along a screw casing using a screw feeder screw. For example, a blocking plate protruding downward by a predetermined length is installed on the upper side of the inner circumferential surface of the screw casing, which corresponds to the front side of the input hopper, or the screw pitch of the feed screw on the front side located along the screw casing at the front side of the input hopper. Is to be larger than the screw pitch of the rear side transfer screw located on the lower side of the input hopper, or the pitch of the front side transfer screw is gradually increased along the longitudinal direction of the screw casing, or the part corresponding to the front side of the input hopper By making the inner diameter of the remaining screw casing part larger than the screw wing diameter of the conveying screw, the feed supplied through the screw casing from the feed hopper of the feed reservoir by the axis rotation of the conveying screw is excessive between the conveying screw and the screw casing. It does not squeeze smoothly and allows it to be pushed out smoothly by the conveying screw. Through this, the phenomenon that the function of the feed cannot be properly performed due to the crushing of the feed particles due to the excessive compressing force of the conveying screw, and the screw motor It relates to a screw-type feed unit for aquaculture to prevent overload and failure or malfunction of the screw feeder.본 발명은 사료저장통으로부터 투입호퍼를 거쳐 스크류피더의 내부로 투입된 사료를 스크류피더의 이송스크류를 이용하여 스크류케이싱을 따라 양식수조로 공급시키도록 한 양식장용 스크류식 사료공급유닛에 관한 것으로서, 더욱 상세하게는 투입호퍼의 직전방에 해당하는 스크류케이싱의 내주면 상측부에 소정의 길이만큼 하방으로 돌출되는 차단판을 설치하거나, 투입호퍼의 전방측에서 스크류케이싱을 따라 위치하는 전방측 이송스크류의 스크류 피치를 투입호퍼의 하부측에 위치하는 후방측 이송스크류의 스크류 피치보다 크게 되도록 하거나, 상기 전방측 이송스크류의 피치가 스크류케이싱의 길이 방향을 따라 점차 증대되도록 하거나, 투입호퍼의 직전방에 해당하는 부분을 제외한 나머지 스크류케
