Abstract: A twisting device for a machine for binding packages with wire, of the type comprising a twisting head in the form of nippers with means for rotating them and causing their opening and closing about the ends of the binding wire.This device comprises furthermore means for causing a progressive translational movement of the twisting head in the direction of the package to be tied up, as it rotates.Application: binding of coils of wire or bundling of bars in the iron and steel industry.

Abstract: A machine for compacting and tying coils comprises a compacting unit mounted for movement in the direction of a tying unit, which itself includes a supply of tying wire. The tying wire is supplied to wire guide channels adapted to close around the compacting coil in order to make ties. The tying unit also has twisting heads for tying two ends of each tie after the corresponding wire has been pulled. Each guide channel is associated with at least two retractable rollers disposed on the movable compacting unit adjacent its support surface bearing against the coil and on each side of the latter, for the purpose of supporting the tying wire while it is being pulled.