Liquid taking device for formation tank

The utility model relates to the technical field of formed foils, in particular to a liquid taking device of a formation tank, which comprises a formation tank body, a heat exchanger, a liquid taking box and a filter, and a liquid outlet of the formation tank body is communicated with a liquid inlet of the heat exchanger through a first connecting pipe. And a liquid outlet of the heat exchanger is communicated with a liquid inlet of the liquid taking box through a second connecting pipe. The tank liquid flows through the liquid taking tank, the first hydraulic cylinder works to drive the lifting seat and the liquid taking tank to move upwards, so that the liquid taking pipe extends into the liquid inlet pipe, the first valve is opened, the tank liquid flowing through the liquid taking tank can be guided into the liquid taking tank from the liquid taking pipe, and after the liquid taking tank finishes taking the liquid, the first hydraulic cylinder works reversely, so that the liquid taking tank can take out t