| 摘要 |
A machine for the formation of numbered packs of interleaved sheets of paper (6), includes a pair of counter-rotating motor-driven folding rollers (2,3), an interference surface (11) mobile with a to-and-fro motion between a position (P1) of non-interference and a position (P2) of interference, and a mechanism (36) of cyclic movement of the surface (11) including at least one supporting crank (13) oscillating with respect to the carriage (26) and articulated to a first axis (15) of rotation of the surface, and a first motor-driven connecting rod (19) kinematically connected to the surface (11) to bestow the to-and-fro motion thereon. |
| 主权项 |
1. A machine for the formation of numbered packs of interleaved sheets of paper (6), comprising:
a pair of counter-rotating motor-driven folding rollers (2, 3) shaped on the surface so as to interfere along a plurality of folding lines (7, 8), each roller being fed by a respective supply of sheets (6), which are drawn, in a reciprocating way, by the surfaces (64, 65) of the rollers (2, 3), into a position staggered one with respect to the next so as to be set overlapping along at least one common folding line (7) of interleaving; an interference surface (11), which is mobile with a to-and-fro motion between a position (P1) of non-interference and a position (P2) of interference, synchronized with the speed of rotation of the rollers (2, 3) for interrupting cyclically the succession of folded sheets that are released by the rollers and are to form numbered packs of interleaved sheets of paper, a mechanism (36) for cyclic movement of the surface (11) supported by a motor-driven carriage (26) mobile in a direction of recession from the rollers (2, 3), said mechanism (36) comprising at least one supporting crank (13) oscillating with respect to the carriage (26) and articulated to the surface (11) about a first axis (15) of rotation, and a first motor-driven connecting rod (19) kinematically connected to the surface (11) to bestow said to-and-fro motion thereon, wherein said mechanism (36) comprises a second motor-driven connecting rod (16) mounted on a cam (17) supported by the carriage (26) and connected the surface (11) about a second axis (4) of rotation. |
