Textile fabric wetting device capable of automatically adjusting water volume according to stretching length of textile fabric

The invention relates to the technical field of textiles, and discloses a textile fabric wetting device capable of automatically adjusting the water volume according to the stretching length of a textile fabric. The textile fabric wetting device comprises a fixed cylinder; a rotating cylinder is rotatably connected inside the fixed cylinder; an air bag is arranged in the rotating cylinder; water cavities which are annularly arranged are formed in the outer side of the rotating cylinder; telescopic films are fixedly connected to the interiors of the water cavities; annularly-arranged inserting rods are inserted into the rotating cylinder; extrusion plates are fixedly connected to the opposite sides of the inserting rods; and a water containing groove is formed in the bottom of the fixed cylinder. The rotating cylinder rotates clockwise in the fixed cylinder; when the water cavities rotate to the upper portion and communicate with an opening, the water cavities are filled with water in a water tank through the opening; and when the water cavities filled with the water rotate to the position of the water containing groove below, the water in the water cavities flows out of the fixed cylinder through the water containing groove and wetting holes and makes contact with the textile fabric passing through the bottom of the fixed cylinder, and therefore the effect that the textile fabric moving rightwards at the bottom of the fixed cylinder is evenly wetted is achieved.