Chemical bath coating device

The utility model discloses a chemical bath coating device, which comprises a liquid tank and a swing mechanism. A transverse beam and a longitudinal beam are distributed at the bottom of the liquid tank in a crossed manner, a support part arranged at the crossed position of the transverse beam and the longitudinal beam is connected with a base below the beams, the swing mechanism includes a motor installed on the base, the motor drives a transmission shaft in rotation through a transmission component, the transmission shaft is fixed onto the base through a fixing rack with a bearing, a first eccentric shaft is arranged at one end of the transmission shaft, a second eccentric shaft is arranged at the other end of the transmission shaft, the first eccentric shaft is connected to one end of a first connecting rod through a first rotary support component, a second rotary support component is installed at the other end of the first connecting rod and connected to a first support, the first support is connected to the middle of a part of the transverse beam on one side of the crossed position, the second eccentric shaft is connected to one end of a second connecting rod through a third rotary support component, a fourth rotary support component is installed at the other end of the second connecting rod and connected to a second support, and the second support is connected to the middle of a part of the longitudinal beam on one side of the crossed position.