STRAIGHTENING AND STRETCHING MACHINE FOR STRAIGHTENING SHEET METAL STRIPS Russian patent published in 2023 - IPC B21D1/05 

FIELD: pressure forming.

SUBSTANCE: invention relates to equipment for straightening strips of sheet metal. The straightening and stretching machine contain upper and lower take-off rollers at the inlet, a line of bending rollers, top take-off rollers in the section, a line of transverse bending straightening rolls, a line of longitudinal bending straightening rolls and lower take-off rollers at the exit, located sequentially along the direction of strip movement. The bending roll line includes several groups of upper bending rolls and several groups of lower bending rolls. The transverse bending straightening roll line includes upper straightening rolls and several transverse bending take-off rollers located under the strip rolling channel. The line of longitudinal bending straightening rolls includes lower levelling rolls and several longitudinal bending take-off rollers located above the strip rolling channel.

EFFECT: strip surface quality problems such as scratches and colour differences can be reduced.

9 cl, 6 dwg