Hot-rolled elliptical rolled piece inlet rolling guide

Abstract

The invention relates to a device used to align, position and guide metal rolling element. Wherein, it comprise bank with guide plate with rolling element channel; the bank has cooling water open; the guide roller axle has oil let connected to oil ejector; the bank has at least a couple of crossed guide roller at 2aphla angle; two guide rollers with arc holes are inserted into the rolling element channel inclined, to form trapezium hole; when the rolling element is through said trapezium hole, the roller will align, clamp and correct the rolling element to vertically feed long axle into round hole or square hole. The invention has simple structure while it can reduce the impact of rolling element on guide roller and bearing, to prolong its service life.

Description

technical field [0001] The invention belongs to metal rolling, in particular to a straightening, guiding and positioning device for metal rolled pieces. Background technique [0002] The rough and medium rolling mill pass for bar and wire metal rolling generally adopts the ellipse-round pass or ellipse-square pass system. When the rolled piece is out of the ellipse pass, it is a horizontal ellipse, that is, the long axis of the ellipse is in the horizontal direction and the short axis is in the vertical direction. direction. When entering the next pass, the rolled piece needs to be turned 90 degrees to enter the round pass or square pass in the vertical ellipse state, that is, the short axis of the ellipse is in the horizontal direction and the long axis is in the vertical direction. At present, two sets of guides are used to realize the turning of the rolled piece and guide it into the next pass, that is, torsion guides are used at the exit of the elliptical hole type fram...

AI Technical Summary

Problems solved by technology

Theoretically, the long axis of the elliptical rolled piece should enter the round hole or square hole in a vertical state, but in the actual production process, in order to reduce the twisting of the head of the rolled piece and the steel stacking accident caused by the twist, or the wear of the guide, it will be used The opening of the guide plate and guide roller increases, which will inevitably affect the clamping and straightening effect of the guide on the rolled piece, and the rolled piece often enters the guide in an inclined state.

The disadvantage is that the inclined rolling piece impacts the guide roller, the guide roller and bearing are easily broken, the guide is damaged, the replacement is frequent, and it will cause a pile of steel accidents; the inclined rolling piece also gives an axial reaction force to the upper and lower rolls, and the continuous action will cause the rolls to be misaligned , the cross-section of the rolled piece is not round, resulting in batch quality accidents; the inertial effect of turning the rolled piece will continue to affect the stability of the subsequent rolling. When the rolled piece enters the subsequent horizontal or vertical looper, it is easy to twist, scratch, and Easily damaged subsequent guides

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