Two transmission shaft and four roller cross adjustable universal rolling mill and universal continuous rolling mill set formed by same

Abstract

The invention provides a two transmission shaft and four roller cross adjustable universal rolling mill comprising a stand and also comprising an upper transmission shaft, a lower transmission shaft, a left vertical roller shaft, a right vertical roller shat, an inclined angle adjusting device and a stepping motor which are arranged in the stand. The invention also provides a universal continuous rolling mill set formed by the two transmission shaft and four roller cross adjustable universal rolling mill. The invention has reliable, practical and compact structure; the seams of four rollers can be rapidly changed automatically or manually on the production line, and the position of the cross section by which the four rollers contact and metal rolled pieces are rolled can be changed; in addition, the invention has low power consumption, high workpiece rolling precision, free size of workpiece rolling, no broadening and no traditional guiding, is applicable to the cold-hot continuous rolling, the reducing and the sizing of tubes, rods and wires, the cold-hot continuous rolling of a special-shape workpiece, the tension reducing of tubes, and the like, can replace the cold drawing of the workpieces and has various other functions.

Description

【Technical field】 [0001] The invention relates to a metal rolling machine commonly known as a rolling mill, in particular to a machine that can quickly change the roll gap of the four rolls on the production line, manually or automatically, and change the cross-section position of the four rolls in contact with and rolling the metal rolling piece. A four-high cross-type adjustable universal rolling mill with double transmission shafts and a continuous universal rolling mill composed of it. 【Background technique】 [0002] According to the traditional classification method of rolling mills, the rolling mills in which the upper, lower, left and right rolls roll the same metal section at the same time are commonly known as universal rolling mills. Since the advent of rolling mills, many forms of four-high universal rolling mills have emerged in endlessly. There are also universal rolling mills for tubes, rods and wires. The concept and characteristics of today's traditional met...

AI Technical Summary

Problems solved by technology

There are two reasons for the high energy consumption of traditional rolling: one is that a large compression rate results in a large amount of expansion, and the expansion is often an invalid deformation, while the extension is an effective deformation; on the other hand, the high compression rate causes a sharp increase in the deformation resistance of the metal , resulting in high rolling energy consumption

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