| 摘要 |
<p>The present invention aims to provide a parallel folding device of a folding machine, which can perform parallel double folding and delta folding, and which can smoothly and reliably transfer a parallel single-folded signature (9) between first and second jaw cylinders (3, 4) regardless of paper quality. In the parallel folding device of a folding machine, comprising the first jaw cylinder (3) and the second jaw cylinder (4) arranged with circumferential surfaces thereof opposed to and in contact with each other, a belt (21) is looped between the first jaw cylinder (3) and rollers (20a to 20d) parallel thereto, and the predetermined roller (20d) is moved to switch the belt (21) between a guide position at which the belt guides a front end of a signature from the first jaw cylinder (3) to the second jaw cylinder (4) at the time of gripping change from the first jaw cylinder (3) to the second jaw cylinder (4) during parallel single folding, and a retreat position to which the belt retreats from the second jaw cylinder (4) when the signature is parallel folded by the first jaw cylinder (3) and the second jaw cylinder (4) during parallel double folding or delta folding. <IMAGE></p> |
