| 摘要 |
PURPOSE:To enable the highly accurate chopper folding to be processed without reducing the speed in parallel folding by distributing a signature to an upper and lower transfer rotors one after another after the signature which has been folded in a parallel form through a folding and holding rotors is transferred to a decelerating rotor. CONSTITUTION:In a folding device of a rolled paper rotary press, a folding rotor 12 provided with needles 13 and inserting blades 14 is installed so as to face and come in contact with a paper folding rotor (a needle rotor) 7. A holding rotor 16 which faces and comes in contact with the folding rotor 12 and has a diameter 1/1.5 times as large as the folding rotor incorporates holding plates 17 which face to the inserting blades 14. And a decelerating rotor 19 which faces and comes in contact with the holding rotor 16 and rotates at the slower circumferential speed than the holding rotor incorporates holding clicks 20. And a pair of transfer rotors 23 and 25, each of which aces and comes in contact with the circumference of the decelerating rotor 19 at two places and incorporates holding clicks 24 and 25, is arranged at the upper and lower sides of the decelerating rotor. A signature which has been folded in a parallel form through the folding roter 12 and the holding rotor 16 is transferred to the decelerating rotor 19 for deceleration, subsequently is distributed to the upper and lower transfer rotors 23 and 25 one after another. |
