The invention discloses a semi-automatic
selenium sand melon transplanter. The semi-automatic
selenium sand melon transplanter comprises a rack, a
seedling casting device, a ditching device, a soil covering device and a soil gathering and
seedling protecting device, wherein the front end of the rack is provided with a
traction frame, and two sides of the rack are provided with traveling wheels; the
seedling casting device is arranged on the upper side of the rack and located behind the
traction frame; the seedling
casting device comprises a seedling casting
pipe vertically fixed to the rack; the ditching device is arranged on the lower side of the front end of the rack; the soil covering device is arranged on the lower side of the rack and located behind the ditching device; the soil gathering seedling protecting device comprises a soil gathering frame, an electric push rod, an auxiliary switch, a PLC and a power supply; the soil gathering frame is erected on the upper side of the rack and located behind the soil covering device, the electric push rod is connected between the rack and the soil gathering frame and can drive the soil gathering frame to move up and down relative to the rack, the auxiliary switch is arranged on the seedling casting
pipe and executes an automatic touching action in the downward moving process under the action of the gravity of melon seedlings, and the PLC is electrically connected with the electric push rod, the auxiliary switch and the power supply. The semi-automatic
selenium sand melon transplanter has high
automation degree and can reduce the
transplanting cost of selenium sand melons.