Automatic seedling raising tray stacking device

The invention discloses an automatic seedling raising tray stacking device suitable for a seedling raising and sowing assembly line, which consists of a rack, a seedling raising tray conveying mechanism, a seedling raising tray stacking mechanism and a control system, and is characterized in that the control system controls the seedling raising tray conveying mechanism and the seedling raising tray stacking mechanism to convey seedling raising trays to the tray stacking mechanism; according to the seedling raising tray stacking device, automatic conveying and fixed-point tray stacking of the seedling raising trays with different sizes, especially different widths can be achieved, the number of the stacked trays is controllable, the tray stacking device is provided with a horizontal adjusting mechanism, the operation consistency of the device is guaranteed, stacking of the seedling raising trays is more accurate and orderly, and the working efficiency is improved. The tray stacking device is provided with a vi