Beating-up method and beating-up device for preparing fabrics with different weft densities

The invention belongs to the field of textile machinery, and particularly relates to a beating-up method and beating-up device for preparing fabrics with different weft densities. The device comprises a power mechanism, a beating-up mechanism and a reed assembly; the power mechanism provides power for the beating-up mechanism; the beating-up mechanism comprises an eccentric wheel, a connecting rod, a beating-up seat and a horizontal guide rail; a kidney-shaped hole is formed in the eccentric wheel in the centripetal direction; the position of one end of the connecting rod in the kidney-shaped hole is adjustable, and the other end of the connecting rod is connected with the beating-up seat; the reed assembly is arranged on the beating-up seat; the power mechanism drives the eccentric wheel to rotate, so that the beating-up seat is driven to move along the horizontal guide rail to achieve beating-up; and the position of one end of the connecting rod in the kidney-shaped hole is changed to change the beating-up