Sectional material straightening method

• Main Authors: CHEN XINHE, WANG JINYONG, ZHANG JIANMIN, LIU FUQIANG, ZHANG AILIANG, QI XILUN, GAO JIE
• Format: Patent
• Language: Chinese; English
• Published: 13.12.2022
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

The invention relates to a method for straightening a sectional material. The method comprises the following steps: (1) mounting an upper die and a lower support which correspond to a straightening stress surface of the sectional material in size and shape; (2) the bent profile is placed on the two lower supports, and the distance between the two lower supports is adjusted; (3) starting the straightening device, and enabling the upper die to press the arched surface to gradually move downwards until the straightness is qualified; and (4) the upper die moves upwards to be separated from the profile, and the next section of profile is straightened. The sectional material straightening device comprises a base, a rack, a top cover, a hydraulic jack and an upper die base. The device is provided with an arc-shaped upper die and an arc-shaped lower support, the arc-shaped upper die is connected with an upper die base, and the arc-shaped lower support is installed on a base. A flat and straight surface upper die is a