The utility model provides a plug
seedling transplanter clamping mechanism which comprises a moving
assembly arranged on a transplanter body and a clamping
assembly connected with the moving
assembly, the clamping assembly comprises two clamping arms used for clamping plug seedlings and a driving unit used for driving the two clamping arms to move oppositely, one end of each clamping arm is connected with the driving unit, and the other end of each clamping arm is connected with the moving assembly. An arc-shaped clamping piece in separable contact with a plug
seedling is arranged at the other end of the clamping arm, and the arc-shaped clamping piece is arranged at one end of the clamping arm in a swinging manner. According to the clamping mechanism of the plug
seedling transplanter provided by the utility model, the positive and negative lead screws drive the arc-shaped clamping pieces on the clamping arms to slowly approach plug seedlings, and the
sponge bosses are arranged on the arc-shaped clamping pieces to buffer the clamping of the arc-shaped clamping pieces, so that the clamping of the plug seedlings by the arc-shaped clamping pieces is more stable and reliable; the tray seedlings are flexibly buffered by the
sponge bosses, so that the tray seedlings are prevented from being collapsed and broken due to
stress concentration during clamping, and the clamping effect of the clamping mechanism on the tray seedlings is better.