Novel let-off mechanism of rapier loom

The utility model discloses a novel let-off mechanism of a rapier loom, which relates to the technical field of textile machinery, and comprises a rack and a driving mechanism arranged on the rack, a plurality of groups of warp beams for placing warp wheels are arranged in the rack, each warp beam comprises a fixed disc and a central rod, and the warp beams are arranged along the width direction of the rack at equal intervals. A bottom supporting assembly is arranged below the warp beams in the rack and comprises a placing block and a driving block arranged on the placing block in a sliding mode, a pushing piece is arranged at one end of the placing block, the top end of the pushing piece is connected with the driving block, and the top end of the pushing piece is connected with the driving block; the pushing piece can be driven to drive the driving block to horizontally slide in the length direction of the containing block, a lifting assembly is arranged at one end of the rack and connected with the containi