The present invention relates to a mixing bucket anti-mixing device, which is used for locking the lid of the mixing bucket and reminding the completion of the feeding operation, the mixing bucket anti-mixing device comprises a control unit, a locking unit and a warning device. The lock unit is disposed on the matching bucket and adjacent to the cover, the lock unit includes a pneumatic cylinder and a pressing rod, and the pneumatic cylinder is controlled by the control unit, and the pressing rod is disposed on the pneumatic cylinder. The pressure bar is rotatable and can be moved up and down. The warning device is electrically connected to the control unit and located above the mixing barrel. After the feeding operation is completed, the locking unit can be controlled by the control unit to lock the cover. And the warning device is activated, so that other staff members can surely know that the feeding operation is completed, and avoid repeated feeding and misfeeding.本創作係一種調配桶防混料裝置，其係用於鎖上調配桶的蓋子並提醒投料作業完成，該調配桶防混料裝置包含一控制單元、一上鎖單元及一警示器，該上鎖單元設於該調配桶上並鄰近該蓋子，該上鎖單元包含一氣壓缸體及一壓桿，該氣壓缸體受控於該控制單元，該壓桿係設於該氣壓缸體上，且該壓桿可轉動並可上下移動，該警示器係電性連接該控制單元並位於該調配桶的上方，於投料作業完成後，可透過該控制單元操控該上鎖單元將該蓋子鎖上且啟動該警示器，讓其他工作人員可確實得知投料作業完成，並避免重複投料與誤投料的情形發生。
