| 摘要 |
A machine for introducing a ribbon inside the rings of a chain according to an undulated trend, comprising
- a sliding guide for the chain;
- means for controlled feed of the chain on said guide;
- means for blocking a part of the ribbon on the chain, with said ribbon longitudinally facing at least in part a first face of said chain, so that one end of said ribbon, opposite the direction of feed of the chain, is free;
- a first insertion unit adapted to push, in a first direction, a portion of ribbon into a first ring of the chain it is facing, to form an increasing eyelet (or loop) on the opposite face of the first ring with respect to that of insertion, said first insertion unit being adapted to act until the free end of the ribbon passes through said first ring, reaching the second face of the chain;
- a second insertion unit adapted to push, in a second direction opposite said first direction, the portion of ribbon that has passed through said first ring into a second ring to form an increasing eyelet (or loop) on the opposite face of said second ring with respect to that of insertion into the second ring, said second insertion unit being adapted to act until the free end of the ribbon passes through said second ring, returning to the first face of the chain. |
