Core fixing type pinch roll guide

Abstract

The invention relates to a pinch roll guide for guiding rolled pieces into a laying head. A guide groove for the rolled pieces to pass through is arranged in the guide and is communicated with the inlet and the outlet of the guide; a tail guide roll set is arranged at the tail of the guide and comprises a plurality of branched guide rolls; annular grooves are formed along the circumferential directions of the branched guide rolls; the groove surfaces of the annular grooves on each of the branched guide rolls enclose a full circle for the rolled pieces to pass through; the branched guide rolls are fixed on guide roll seats; and the guide roll shafts of the branched guide rolls are rigidly matched with the guide roll seats. The technical scheme shows that the guide roll shafts of the branched guide rolls are rigidly matched with the guide roll seats for fixing the branched guide rolls, thus the closeness of the full circle can be kept all the time, and the elastic change can not occur. The rigid matching can achieve the purpose of forcibly fixing cores of the rolled pieces, has high guide precision, good rigidity and small vibration, avoids impact, surface scratches and scuffing caused by off tracking generated when the rolled pieces enter the full circle, and simultaneously avoids large amplitude vibration of the guide, or distortion and stacking of the rolled pieces and other phenomena.

Description

technical field [0001] The invention relates to a guide, in particular to a pinch roll guide for guiding a rolled piece into a laying machine. Background technique [0002] After the high-speed wire rod (hereinafter referred to as the rolled piece) passes through the last finished rolling mill, it enters the pinch roller through the water-cooled and straight conveying roller table, and is pinched by the pinch roller into the laying head, and the rolled piece is wound into a circle by the rotation of the laying head. plate and cooled to become the final product. When the rolled piece enters the laying head through the pinch roller, it needs to be guided by the pinch roller guide to bend the rolled piece before entering the laying head conduit. The middle part of the pinch roller guide has a guide groove for the rolled piece to pass through, and the tail is equipped with a guide roller. The main purpose of the pinch roller guide is to guide and restrain the rolled piece throu...

AI Technical Summary

Problems solved by technology

At present, the tail guide roller of the pinch roller guide used is mostly elastically matched with the rolled piece. Since the rolled piece enters the guide at a very fast speed, basically at 95m / s-120m / s, the guide will produce a certain Vibration, the rolled piece will jump accordingly. In the state of elastic fit, the jump of the rolled piece will be very obvious, so that the guiding effect of the rolled piece when it enters the laying machine is not obvious, and it is not easy to fix the core. When the jump is particularly large, it is also easy to generate piles of steel, scratches and scratches on the surface of the rolled piece, and at the same time, the jump of the rolled piece will hit the pipe nozzle of the laying machine and cause scratches

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