Wedge-shaped plate straightening technology based on cooperating roll systems

Abstract

The invention discloses a wedge-shaped plate straightening process based on a matching roller system. A double-roll system straightening machine is adopted, and the roller systems with large and small roll diameters are respectively arranged on the entrance side and the exit side. The specific steps are: 1. According to the parameters of the wedge-shaped plate Calculate the reduction corresponding to different plate thicknesses; 2. Adjust the inclination angle of the lower roll and the upper roll of the straightening roll system with large and small roll diameters of the straightening machine according to the slope of the wedge plate; 3. Adjust the inclination angle of the wedge plate according to the parameters of the wedge plate Carry out plate thickness division, and divide the wedge-shaped plate into three plate sections: thin plate area, transition area and thick plate area; 4. According to the plate thickness division of the wedge-shaped plate, different roll systems are used to straighten different plate sections. When straightening, The thin plate area of ​​the wedge-shaped plate enters the straightening machine first, and the straightening rollers with large and small diameter rolls work together to complete the straightening of different sections of the wedge-shaped plate. The invention solves the problem that the number of rolls and the diameter of the rolls should be changed according to the thickness of the plate when straightening the wedge-shaped plate, so that the reduction and the number of rolls and the diameter of the rolls meet the technical requirements for straightening the wedge-shaped plate, and the wedge-shaped plate with qualified quality can be straightened.

Description

technical field [0001] The invention relates to the field of plate straightening, in particular to a wedge-shaped plate straightening process based on a matching roll system. Background technique [0002] Wedge plate is a longitudinally variable cross-section plate, which can optimize the design of structural sections of bridges, hulls, buildings, etc., reduce steel consumption, reduce welding times, and reduce the weight of bridges and other buildings. It has very broad application prospects in shipbuilding and bridge industries. Demand continues to grow worldwide, but its straightening remains a technical problem. Famous metallurgical equipment manufacturers in the world have launched "third-generation straightening machines", but the straightening objects are still plates with constant thickness, and it is not possible to straighten plates with variable thickness such as wedge plates. First of all, there is a thickness difference between the two sides of the wedge plate....

AI Technical Summary

Problems solved by technology

Famous metallurgical equipment manufacturers in the world have launched "third-generation straightening machines", but the straightening objects are still plates with constant thickness, and it is not possible to straighten plates with variable thickness such as wedge plates.

First of all, there is a difference in plate thickness on both sides of the wedge plate. When the plate thickness difference reaches a certain value, the roll system needs to be replaced online to make the parameters of the roll system meet the thickness change of the wedge plate; secondly, for the wedge plate, its thickness is variable during straightening , it is necessary to adjust the reduction amount of the straightening roller online, and it is obviously unreasonable to use the existing straightening machine for straightening

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