Tray feeding and discharging mechanism

The utility model discloses a tray feeding and discharging mechanism, and belongs to the technical field of automatic feeding and discharging production. The tray feeding and discharging mechanism comprises a lifting module, the lifting module comprises a vertical frame and a lifting table, and the lifting table is arranged on the vertical frame and can ascend and descend in the vertical direction relative to the vertical frame; the loading module is arranged at a material supply position below the vertical frame and is used for conveying the tray to the lifting table; the pressing rod module comprises a support, a bearing frame, lifting tables and a lower pressing rod, the support is arranged at the material taking position above the vertical frame, the bearing frame is fixedly arranged on the support, the multiple lifting air cylinders are arranged on the bearing frame at intervals, the two lifting tables are arranged on the vertical frame and can ascend and descend in the vertical direction relative to the