Machine for bending an elongated workpiece without wrinkling

A machine for bending an elongated workpiece without wrinkling, comprising:

• a bending die that has a roller-shaped structure provided with a central hole and a groove profile, and is rotatable about a die rotation axis,
• a plate element carried by the bending die centrally and coaxially in its groove profile, so that the plate element oscillates about the die rotation axis, the plate element having a peripheral edge which continues the groove profile of the bending die, and
• a vice eccentrically provided in the bending die and adapted to retain one end of the elongated workpiece to be bent,
• wherein
• the roller-shaped structure of the bending die is in a single piece, and the plate element consists of at least two pieces which are adapted to be connected to one another after surrounding the roller-shaped structure of the bending die;
• and
• the plate element has a longitudinally symmetrical shape and is adapted to be mounted on the bending die in bending in the right direction an elongated workpiece, and to be disassembled and mounted again upside down on the bending die in bending in the left direction the elongated workpiece, and the vice has a plane of symmetry for being adapted to be mounted in the bending die for bending in the right direction the elongated workpiece, and to be disassembled and mounted again in the bending die after being rotated by 180°, for bending in the left direction the elongated workpiece.