Feeding mechanism of printing machine

The utility model discloses a printing machine feeding mechanism which comprises a material plate, an oil cylinder and two conveying roller platforms, a bridge arch part protruding upwards is arrangedin the middle of the material plate, and the two conveying roller platforms are located on the upper portion of the material plate and symmetrically distributed relative to the bridge arch part. Theconveying roller platform is rotationally connected with the material plate through two rotating arms which are distributed in parallel; and a portal frame is fixedly arranged on the bridge arch part.In the utility model, the middle part of the material plate is provided with the bridge arch part which protrudes upwards and is used for aiming at a steel structure barrier between the feeding spaceand the external space, the material plate is rotationally connected with the conveying roller platforms on two sides of the bridge arch part, and the conveying roller platforms are connected with the material plate through the