A hat-shaped steel forming system

Abstract

The invention discloses a cap-shaped steel molding system. The cap-shaped steel molding system comprises a first molding rolling mill, a second molding rolling mill, a third molding rolling mill, a fourth molding rolling mill, a fifth molding rolling mill and a sixth molding rolling mill which are sequentially arrayed in the front-back direction, wherein the first molding rolling mill comprises a first upper roller mold and a first lower roller mold; the second molding rolling mill comprises a second upper roller mold and a second lower roller mold; the third molding rolling mill comprises a third upper roller mold and a third lower roller mold; the fourth molding rolling mill comprises a fourth upper roller mold and a fourth lower roller mold; the fifth molding rolling mill comprises a fifth upper roller mold and a fifth lower roller mold; and the sixth molding rolling mill comprises a sixth upper roller mold and a sixth lower roller mold. The cap-shaped steel molding system is in a brand-new segmented molding mode; the speed ratio of the upper rollers to the lower rollers is brand-new; and scratches or roller marks on surfaces of strip steel are avoided.

Description

technical field [0001] The invention relates to the technical field of cold-bending hat-shaped steel forming, in particular to a hat-shaped steel forming system. Background technique [0002] The rolling power of cold-formed steel is actually to use the friction between the roll die and the strip to drive the strip. At present, the cold roll forming unit (see "Cold Roll Forming Technical Manual") is powered by one or two sets of main motors, and then connects the corresponding shafts through the speed ratio distribution boxes of each series to drive the rollers on the loading shaft. Mold roll forming, control the rolling line speed of the above-mentioned each rack to keep consistent during production. However, the height difference of cold-formed hat-shaped steel products is relatively large, and the rolling line speeds of the low and high points in the forming process are inconsistent (the size and diameter of each mold are different), resulting in a large speed difference...

AI Technical Summary

Problems solved by technology

When simultaneous forming is used (that is, the four corners of the cold-formed steel are formed with synchronous distribution angles, such as the two corners at the wings of the hat-shaped steel and the two corners at the bottom are changed (formed) in each pass), The strip produces different work on the same section, and internal consumption will occur at this time. Due to the excessive bearing capacity, the service life of equipment spare parts such as roller shafts, universal joints, and speed ratio distribution boxes will be greatly shortened.

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