Abstract: A binding device is provided for placing a flexible bond (F) around an article to be bound. The binding device includes guide members (10, 11) for bringing two opposed end lengths of the flexible bond to cross over each other, and a head (32) placed at the rear of the guide members for twisting the end lengths. The head includes a gripper (32a) mounted on the end of a rotary body (33). A threaded portion (41) of the body (33) of the twisting head (32) is threadedly engaged in a nut (42) integral with the frame. A coupling member (44) surrounds a portion of the body (33) such that the body (33) is slidingly mounted in the coupling member (44). Rotation of the coupling member achieves the rotational driving of the body of the twisting head and simultaneously permits a continuous axially advancement of the body of the twisting head due to the threaded engagement of the body with the nut.

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.