| 摘要 |
FIELD: technological processes. ^ SUBSTANCE: stated group of inventions relates to the field of metal plastic working and may be used to profile metal bars fed from a roll. The machine comprises a bending assembly for metal bars, a cutting assembly installed upstream to the bending assembly to cut metal bars according to size, the first drawing assembly arranged upstream to the cutting assembly for unwind the metal bars from the roll and to feed them to the bending assembly, and the second drawing assembly arranged between the cutting assembly and the first drawing assembly and equipped with gripping elements. The second drawing assembly comprises selective clamping/releasing elements, which act at gripping elements to selectively configure the second drawing assembly between the first non-affecting operation mode, in which the gripping elements do not prevent supply of metal bars, and the second active operation mode, in which the gripping elements interact with the last segments of the roll, which are no longer gripped by the first drawing assembly, and they are sent to the bending assembly. ^ EFFECT: increased reliability of the machine and quality of the profiled bars. ^ 11 cl, 8 dwg |
