High-precision bar rolling mill

Abstract

The invention provides a high-precision bar rolling mill. The high-precision bar rolling mill comprises a base and a roller system. The roller system and the base are mounted and fixed through a roller system support. A conical hole and four grooves are formed in each stand column of the base of the rolling mill. Adjusting liner plates are arranged in the grooves. Vertical boss structures matched with the four grooves in each stand column of the base of the rolling mill are arranged on the four sides of the roller system support. An assembly gap between the roller system support and the stand columns of the base can be adjusted by tightly pressing screws through the adjusting liner plates. Semi-conical holes are formed in the middles of bosses of the roller system support and matched with the conical holes in the stand columns of the base of the rolling mill. The roller system support and the base of the rolling mill are locked through conical drift bolts. The high-precision bar rolling mill is compact in structure, easy to dismount and mount, high in rigidity, small in bounce value and free of axial displacement; round bar products rolled through the high-precision bar rolling mill are high in section size precision, small in ovality and especially suitable for production of bars; and domestication and batch manufacturing of the high-precision bar rolling mill can completely replace an import mode, and great economic and social benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of bar hot rolling equipment, in particular to a bar high-precision rolling mill for hot rolling of stainless steel and alloy steel bar products. Background technique [0002] The steel rolling equipment of most domestic steel companies' bar factories is generally imported from abroad, mainly including the two-roll rolling mills of Italian Pomini Company and Danieli Company, which are called "short stress line rolling mills" in China, that is, rolling mills without archways. This kind of rolling mill is widely used because of its simple structure and convenient disassembly and assembly; it can be used as a horizontal rolling mill or a vertical rolling mill. In the hot rolling of bars, the finished round bars are generally produced on the vertical rolling mill, but the dimensional accuracy of the products is not easy to control, and the ovality deviation is relatively large. In order to solve this problem, s...

AI Technical Summary

Problems solved by technology

Therefore, the rolled round bar is oval and cannot meet the specification requirements of the product

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