The weft insertion speed of the shuttle loom is high, the adaptability of the fabric to the fabric is strong, and the wide range fabric can be woven, and the noise of the machine is low. The shuttle loom has two kinds of PU and PS. The working width is 220~545 cm, and it is divided into two kinds: monochrome and polychromatic. It can be used to weave cotton, wool, chemical fiber and other pure spinning and blended fabrics. If the dobby and jacquard openings are added, small patterns and large pattern fabrics can be woven. 1933 German R. Rosman first proposed the projectile weft; in 1934 the Swiss Sulzer company developed a loom, at the beginning of 50s put into commercial production. Loom and loom are generally different in weft insertion and beating and selvage of three parts. The weft insertion is composed of the shuttle box, the twisting spindle mechanism, the shuttle rail, the shuttle box and the shuttle transmission mechanism. Each loom has a number of shuttles, and the weft is introduced into the shuttles from the weft feeding side of the loom. The power of the shuttle is derived from the elastic potential energy stored in the torsion shaft and torsion, and the remaining energy is absorbed by the oil pressure buffer. The shuttles move along the shuttle rail. It enters the shuttle box after being brake and is sent back to the original by the transmission mechanism below the shuttles. The beating weft adopts the conjugate cam mechanism. When the reed seat moves forward, the guide rail moves away from the shed to the bottom of the cloth surface to complete the beating up action; when the reeds are back and stationary, the guiding rail is inserted into the shed, and the film flies along the guide rail, and the weft yarn is introduced into the shuttle mouth. Application of projectile loom, leno and folded into the middle selvedge apparatus, weave, double or single fabric. The edge warp is fixed with the edge device when weaving synthetic fabric. Since 70s, widely used in loom weft storage device, electronic detection device to stop the loom and loom loom improve productivity; also successfully tested by mechanical, pneumatic or linear induction motor and method of projecting one or both ends of the projectile, reciprocating single weft weft.