| 摘要 |
PURPOSE: A lithographic press for thick paper is provided to carry out direct printing on a thick paper in the offset printing method by using a PS(Pre-Sentized) plate capable of dot-printing for realizing the printing of high resolution regardless of the thickness of the thick paper. CONSTITUTION: A lithographic press for thick paper includes a printing unit(10) mounted with a PS plate(13a) on the outer peripheral surface of a forme cylinder roller(13) rotating in contact with ink rollers(11) and water rollers(12) and an impression cylinder roller(15) below an offset cylinder roller(14) rotating in contact with the forme cylinder roller, a paper supply unit(20) having a hopper(21) mounted on one side of the printing unit and stacked with thick paper(1), and an outlet(22) formed in the hopper and mounted with a separation plate(22a), through which the paper is withdrawn one by one by a kicker bar(23), a conveying unit(30) having paper supplying rollers(31) mounted on both sides of the impression cylinder roller to be positioned around the outlet of the hopper, guide rollers(32) mounted at the upper part of the paper supplying rollers, and belts(31a,32a) wound on the paper supplying rollers and the guide rollers, and a paper discharge unit(40) mounted with discharge rollers(33) positioned on one side of the conveying part and wound by a belt(33a), and having a stacker(41) on one side for stacking the printed paper.
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