Quick die replacing mechanism for drying and bending furnace

The utility model discloses a quick die replacing mechanism for a drying and bending furnace. The quick die replacing mechanism comprises a die trolley and a lifting mechanism, the first sliding frame is horizontally installed on the top face of the supporting box, a first tray is installed on the first sliding frame in a sliding mode, the second sliding frame is horizontally installed on the top of the supporting frame, a second tray is installed on the second sliding way in a sliding mode, and the first sliding frame and the second sliding frame are arranged in parallel. The first sliding frame is positioned above the second sliding frame and is used for placing a new mold; the top of the supporting rod makes contact with the bottom of a to-be-replaced mold so as to lift the mold to the second tray. One layer of sliding frame is additionally arranged on one box type trolley, the first sliding frame and the second sliding frame are matched with each other, and one box type trolley is matched with the lifting