Six-roller mill

Abstract

The invention relates to cold mill machinery, in particular to a six-roller mill which belongs to the forming technical field. In the invention, an axial locking device and supporting rollers are connected and installed at the operation sides of the upper part and the lower part of a housing; a supporting roller balancing device is connected with an upper supporting roller; a hydraulic pressing fine adjustment device is installed at the bottom of the housing, and a lower supporting roller is directly placed on the top of the hydraulic pressing fine adjustment device; an axial moving device isinstalled outside the transmission side of the housing and connected with a middle roller through another axial moving device; an axial moving locking device is installed on a bowed roller block at the transmission side; and a roller system compensating device is installed at the upper part of the housing. The invention improves the dimensional precision of cold-rolled steel strip products and improves the automatic degree in the production process; the device pressing mechanism has simple structure and compact arrangement and improves the service life of bearings; and the roller replacement is fast, flexible, stable, reliable and convenient in operation. The six-roller mill is suitable for rolling steel strip products such as straight carbon steel, quality carbon steel, low alloyed steel,stainless steel, and the like.

Description

technical field [0001] The invention belongs to the technical field of forming, and relates to a cold rolling mechanical device, in particular to a six-high rolling mill used for reversible cold rolling steel rolling equipment, aluminum rolling equipment or copper rolling equipment. Background technique [0002] With the rapid development of modern industry and the vigorous development of industry, construction and household appliances, higher and better requirements are put forward for the products of cold-rolled strip, especially the dimensional accuracy and shape of cold-rolled strip. higher requirement. For example, the dimensional tolerance of the raw material of cold-rolled strip steel by electro-galvanized aluminum is not more than ±8μm. In the modern production field, compared with the four-high or six-high rolling mill with electric reduction, the rolling mill with electric reduction basically cannot adjust the longitudinal tolerance of strip steel online. During p...

AI Technical Summary

Problems solved by technology

Its work roll diameter is small, but the bending force of this type of rolling mill has a great influence on the eccentricity of the roll bearing when it moves, which is not conducive to rolling control. Roll back out, due to the limitation of local size, the depth of the upper roll falling on the lower roll pin is small and it is difficult to overcome the buffer force of the advance of the roll, which causes the roll to fall off and fall off when the roll is advancing, which affects the rhythm of roll change and is not conducive to production

With the rapid development of modern industry, the demand for cold-rolled high-quality products is increasing, and the existing four-high and ordinary six-high rolling mills can no longer meet the requirements of the shape control ability.

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