Box body separating mechanism

The box body separating mechanism comprises a rack, a spiral block and a driving assembly, a box body limiting assembly is arranged on the rack, and box bodies with turned-over edges at openings are stacked on the box body limiting assembly; a spiral guide groove is formed in the peripheral side of the spiral block, and a shifting piece is arranged on the upper portion of the peripheral side of the spiral block. The driving assembly is connected with the spiral block, and the turned-over edge of the box body is supported by the upper end of the spiral guide groove. When the box bodies need to be separated, the driving assembly drives the spiral block to rotate so as to control the shifting piece to be screwed into the position between the turned edges of the two adjacent box bodies and separate the box bodies, and the separated turned edges of the box bodies enter the spiral guide groove. And along with the rotation of the spiral block, the separated box body can be driven to stably move in the axial directio