A-shaped frame rolling machine with brake device

The utility model discloses an A-shaped frame rolling machine with a brake device. The device comprises a base and a cloth drum, a first A-shaped frame, a motor, a second A-shaped frame and a third A-shaped frame are fixedly connected to the top of the base in sequence from left to right. A rotating shaft is connected among the first A-shaped frame, the second A-shaped frame and the third A-shapedframe in a rotating mode, and the surface of the rotating shaft is located between the first A-shaped frame and the second A-shaped frame and fixedly connected with the inner surface of the cloth winding drum. The A-shaped frame rolling machine with the braking device is provided with the braking device; the tensioning wheel is arranged to keep the tightness of the belt; when emergency braking isneeded, the air cylinder can be started to quickly press down the pulling frame; meanwhile, the inclined groove and the short rod are matched to press the belt wheel frame downwards to enable the belt wheel frame to rotate, t