Pushing device for stacking silicon steel sheets of transformer iron core

The invention relates to a pushing device for stacking silicon steel sheets of a transformer iron core. According to the technical scheme, a left silicon steel sheet box (1), a workpiece box (7) and aright silicon steel sheet box (6) are sequentially arranged on the upper plane of a rack (2) from left to right; a fixed part of a left pushing device (3) is fixed on the left side of the rack (2), and the upper end of the left pushing device (3) penetrates through a lower mounting frame (9) and is movably mounted in the left silicon steel sheet box (1); the fixed part of the right pushing device(5) is fixed on the right side of the rack (2), and the upper end of the right pushing device (5) penetrates through the lower mounting frame (9) and is movably mounted in the right silicon steel sheet box (6); and the fixed part of a workpiece pushing device (4) is fixed on the front side of a middle mounting plate (12), and the upper end of the workpiece pushing device (4) is movably arranged in the workpiece box (7). T