| 摘要 |
PROBLEM TO BE SOLVED: To facilitate installation at site and fixing/removal of paper plate or film plate by employing a stopper for integrating a upper plate and a lower plate for introducing a printing plate while clamping the rear end with a vice and clamping a leaf spring for retaining a central stopper pin while engaging with the stop hole in the printing plate. SOLUTION: The stronger adhesion face of a both-sided adhesive sheet 24 exhibiting different adhesion on the opposite sides is pasted to the rear surface of an unnecessary PS plate 23, or the like, and clamped by means of a vice 22 with the both-sided adhesive sheet 24 directing the front side and then a printing plate stopper 1 is also clamped at a specified position. A printing plate is fixed by engaging the stop pin on the stopper with the stop hole in the printing plate and turning a plate cylinder 20 to paste the printing plate to the both-sided adhesive sheet 24 pasted to the rear side of the PS plate 23. At the time of replacing the printing plate, the printing plate is stripped off from the both-sided adhesive sheet 24 to disengage the engaging pin from the stop hole in the printing plate thus removing the printing plate. Since the printing machine requires no machining, the stopping pin can be positioned accurately and easily while dealing sufficiently with color printing and enhancing workability significantly in the printing plate replacing work. |
