Patent ID: 8156866
Filing Date: 2012-04-17
Classification: B41F

Abstract:
1. A printing machine comprising: an ink fountain member having a fountain-forming face; an ink fountain roller for applying an ink to an outer peripheral surface through an ink channel between the ink fountain roller and the ink fountain member; a plurality of rollers for supplying the ink applied to the outer peripheral surface of the ink fountain roller to a printing portion; a pair of barrier plates attracted to the fountain-forming face and the outer peripheral surface of the ink fountain roller by a permanent magnet to form side walls of the ink fountain; and a barrier plate replacing device for detaching the used barrier plate from the ink fountain member and the ink fountain roller and attracting the new barrier plate to the ink fountain member and the ink fountain roller; wherein the barrier plate replacing device includes, a fountain-member turning device for turning the ink fountain member around an axis parallel to the ink fountain roller, and positioning at a predetermined work position, a barrier plate stopper, arranged close to the outer peripheral surface of the ink fountain roller, for stopping the barrier plate rotated with the ink fountain roller away from the fountain-forming face by the turning of the ink fountain member from the work position, and turning the barrier plate in a direction away from the outer peripheral surface of the ink fountain roller, a moving body capable of moving above the ink fountain and being raised and lowered, and a barrier plate holding member disposed in the moving body to hold and release the barrier plate.