The invention relates to a weft inserting mechanism of a sample loom, which is used for introducing
weft yarn into a warp
yarn weaving port for filling warp blends to form a cloth sample. The weft inserting mechanism comprises a rapier head (1), a rapier (4), a guide wheel (3), a rapier seat (5), a guide wheel support seat (2), a rigid support seat (9), a linear bearing sliding block (11), a linear guide rail (12), a
cantilever bracket (13), a right wall board (10), a
servo motor (6), a synchronous belt
pulley I (7), a synchronous belt
pulley support seat (14), a synchronous belt
pulley II (15) and a synchronous belt (8), wherein two ends of the rapier (4) are fixed to the rapier seat (5) by the guide wheel (3); the rapier seat (5) is arranged on the linear bearing sliding block (11); the linear guide rail (12) is arranged on the
cantilever bracket (13); one end of the
cantilever bracket (13) is arranged on the rigid support seat (9); the synchronous belt pulley I (7) is arranged on an output shaft of the
servo motor (6); the synchronous belt pulley support seat (14) and the synchronous belt pulley II (15) are arranged at the other end of the cantilever bracket (13); and the synchronous belt (8) is connected with the rapier seat (5). The invention improves the weaving speed, simultaneously avoids the use of
compressed air and solves the problems that an air cylinder is easy to damage and the cloth cover is polluted.