Sley structure with adjustable reed needle gap and needle seat position

The invention discloses a sley structure with adjustable reed needle gaps and needle seat positions, which comprises a telescopic reed chain, the telescopic reed chain is formed by connecting a plurality of reed chain units end to end and can change the total length in a telescopic manner, and the two sides of the telescopic reed chain move in a mirror image telescopic manner relative to the middle position of the telescopic reed chain; the reed needle gap adjusting mechanism is used for controlling the telescopic movement of the telescopic reed chain through a belt structure, the belt structure is provided with two driving side edges, and the two driving side edges are connected to the two ends of the telescopic reed chain respectively. According to the butterfly piece type, the outer contour is tangent, the expansion change of the reed hinge piece is more uniform and more accurate, and the dust blocking effect is achieved, so that dust is not prone to falling into a driving mechanism below through a gap of