Drawing unit downstream of a bending assembly and method to bend the trailing end of bars.

摘要

Method to bend the trailing end of bars, which is to be carried out automatically or otherwise in bending-shaping machines with a working platform (22) that can be positioned as desired in relation to the horizontal and with a bending assembly located downstream of a feeding-straightening assembly for bars unwound from a reel, whereby after the required bends hve been made in the leading end (T) of the bar (29), the bar (29) is fed forwards by an appreciable length at least partially by the feeding assembly with a movement of distancing of the leading end (T) and, this length of feed having been completed, the bar (29) is sheared by a shears (24) so as to create a trailing end (C) of the residual bar (129), in which method, when the trailing end (C) has been defined, the residual bar (129) is moved axially by an auxiliary drawing unit (10) located downstream of a bending assembly (35) and suitable to take up a first working position and a second retracted position to free a working platform. Drawing unit positioned downstream of a bending assembly (35) to be fitted to a bar (29) bending-shaping machine having a working platform (22) which can be positioned as desired in relation to the horizontal, the machine comprising a bending assembly (35) located downstream of an assembly that feeds and straightens bars (29) being unwound from a reel, in which drawing unit an auxiliary drawing unit (10) is included downstream of the bending assembly (35) and on the axis of the bar (29) and is suitable to take up a first working position and a second retracted position to free a working platform.