Machine features: This type of gear adopts oil-immersed lubrication, easy maintenance and long service life; The use of expandable cloth adjustment rack can adjust the inclination of the lower cloth, so that the line of the color strip cloth is straight after the opening, and the cloth surface is flat; Using electric round knife to open the width, synchronous winding and retracting the cloth, after winding and retracting the cloth, the tension is average, and it is not easy to produce brightness and darkness; Adopting the design that the cloth collection shaft is close to the cloth spread, greatly reducing the loss of the cloth edge and roll, and the distance and code weight between the cloth head and the cloth tail are consistent during use, which improves the utilization rate of the cloth; The cloth rolling rod adopts the outer casing type, which is easy to extract after the cloth rolling is completed; The cloth collecting stick adopts both active and forced crimping methods, which can prevent the crease of the rolled cloth that cannot be tightened by small cloth.