Patent ID: 9604271
Date: 2017-03-28
CPC Classifications: B21D

Claim:
1. A machine to bend pipes comprising: a bed; a plate, positioned at one end of said bed, said plate being configured and arranged to move along an X-axis that is parallel to a surface on which the bed is located; a bending head connected to the plate, said bending head being configured and arranged to move along a Z-axis that is orthogonal to the surface on which the bed is located, said bending head being equipped with at least one bending arm and at least one bending die; and at least one calendering jig; and wherein said calendering jig is located at a position that is before the bending die, with respect to a feeding direction of the pipe, wherein the calendering jig comprises at least two first rolls used to lock the pipe, wherein the two first rolls are opposed to each other and positioned at the end of the bed, and a second roll that is configured and arranged for determining the calendering radius of the pipe, wherein said second roll is anchored to the upper portion of the plate, and wherein said bending head is configured and arranged to move-independently in the Z direction with respect to both said plate and said second roll.