Guide switching device capable of automatically adjusting clearance

Abstract

The invention relates to the technical field of strip sheet mill production line mechanical equipment, and discloses a guide switching device capable of automatically adjusting the clearance. The guide switching device comprises an upper pinch roll swing arm assembly, an upper guide switching device and a lower guide switching device. The upper guide switching device is composed of a supporting connecting arm, a first connecting cross beam, a second connecting cross beam, a hook, air cylinders, a water scraping wear-resisting plate and an upper guide plate. The lower guide switching device iscomposed of adjusting screws, a lower switching guide hydraulic cylinder, a lower chute plate and a lower switching guide frame. One end of the lower chute plate is connected to the lower switching guide frame through a connecting pin shaft, and the other end of the lower chute plate is connected to the lower switching guide frame through the two sets of adjusting screws. According to the guide switching device, the problem that the head of thin strip steel is thin and is upwarped to be wound into an upper pinch roll is avoided, meanwhile, the situation that the thick head is buckled downwardsto be drilled into the clearance of the lower chute plate and the steel stacking accident between the lower pinch roll and a coiler mandrel are avoided, and production stability is guaranteed.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment for a coil rolling mill production line, in particular to a guide switching device for automatically adjusting gaps. Background technique [0002] Generally, the CSP hot-rolled coil production line of a steel plant has two sets of downcoilers, and the coiling production is alternately performed under normal circumstances. There is a pinch roller before each set of downcoilers. The diameter range of the upper pinch roller is 880mm-900mm, the diameter range of the lower pinch roller is 470mm-500mm, the axial centerline position of the upper and lower pinch rollers is eccentric by 200mm, and the position of the upper pinch roller is close to the coiler. The lower pinch roller is installed in the lower frame, and the upper pinch roller is installed on the upper assembly of the upper swing arm. The upper swing arm assembly sets the pinch roller through the lifting action of the hydraulic ...

AI Technical Summary

Problems solved by technology

[0004] With the adjustment of the product structure of the CSP production line, the output of thin-gauge steel coils with a thickness of less than 1.8mm has increased significantly. During the coiling and threading process, accidents of stacking steel are prone to occur, especially at the pinch rolls. The parameters have been optimized and adjusted, but the gap cannot be eliminated, and the thickness of the head of the thin-gauge steel plate is only about 0.6mm. Roller winding accidents will cause unplanned pouring stop

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