Film material speed control conveying device for bag making machine

The utility model relates to the technical field of bag making equipment, and discloses a film material speed control conveying device for a bag making machine, which comprises a fixing box, a first fixing plate is fixedly connected to the front side of the inner side of the fixing box, and second fixing plates are fixedly connected to the tops of the two sides of the inner side of the fixing box and close to the back side. First bearings are fixedly connected to the inner sides of the two second fixing plates in a sleeving mode, first roller shafts are fixedly connected to the inner sides of the first bearings, a third fixing plate is fixedly connected to one side of the fixing box, and a traction motor is fixedly connected to the top of the third fixing plate; an output shaft of the traction motor is in transmission connection with a first bearing movably connected with the bottom of the inner side of the second fixing plate, a first roller shaft connected with the bottom of the inner side of the second fix