Six-section roll forming and three-roll rolling mill for rolling non-ferrous metals

Abstract

The invention relates to a six-section roll shape for rolling non-ferrous metals, which comprises a roll body, the roll body is sequentially provided with a contact biting section, a rotary rolling section, a collection and transformation section, a flattening section, a rounding section and a pipe throwing section from right to left, and the contact biting section, the rotary rolling section, the collection and transformation section, the flattening section, the rounding section and the pipe throwing section are all conical surfaces. The contact biting section, the rotary rolling section, the centralized transformation section, the flattening section, the rounding section and the pipe throwing section of the roller body sequentially achieve the technological processes of biting, centralized deformation, wall thickness uniformizing, diameter reducing and pipe throwing of pierced billets in the non-ferrous metal rolling process. The hole pattern is provided with three rollers which are distributed in a 120-degree diagonal mode, and rolling forming of a pierced billet is achieved. The surface of the non-ferrous metal is prevented from being scratched and caked by an auxiliary tool, and rolling plastic forming of the non-ferrous metal on three-roller rolling is realized by designing the roller surface with six sections.

Description

Technical field [0001] The present invention relates to the field of thermoplastic deformation processing of non-ferrous metals, in particular a non-ferrous metal rolling machine with six-stage roll and three-roll roll mills. Background [0002] Seamless pipe production process for non-ferrous metals rolling has higher technical requirements, different from the black seamless pipe product rolling mode, through the technical test using three-roll rolling mill rolling compared with two-roll oblique rolling mill, rolled waste pipe quality will be more high quality, waste pipe inside and outside the surface quality, geometric tolerance will be better, reduce the auxiliary tools caused by the surface scratches and inward folds and other defects. [0003] After the conventional three-roll mill processes the waste pipe into a pipe, it needs to produce a fast-opening displacement between the three rollers of the three-roll rolling mill, so that the rollers are disengaged from the pipeli...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the above problems, and provides a six-segment roll shape and three-roll rolling mill for non-ferrous metal rolling, which solves the problem that the roll shape of a conventional three-roll mill cannot realize biting rotation when rolling non-ferrous metals, and jams during rolling. and technical issues of smooth throwing

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