Gbj180 Seven-roller Bar Straightening Machine Design

In the process of modern steel bar production, the rigor disposal of steel bar is the last phase, in which the bar straightening machine takes up the important position. The quality of straightening is the decisive factor of steel bar. The straightened steel bar have appended values for its good roundness and straightness and the straightener is one of the most important device which decide the steel bar's quality competitively.According user's demand , and on the basis of my experience from many projects, GBJ180 Seven-Roll bar material Straighter , designed for straightening steel bar in 2005. It is designed with six poles and has a plumb structure. The equipment has an advanced and reliable hydraulic-protection. since adopting the advanced hydraulic theory,the straighter can adjust the gap of working roller by an accurate and reliable outmode. The equipment has a good straightening precision in the process of rolling the roller,it has a evident straightening effect to bring the steel bar to camber and ellipse. In the meantime,the straighter is promoted for the advanced standard and adapted to the need of the medium-size steel factory of HANGZHOU.This paper mainly introduces the basic principle and methods of straightening technology and the research and development of straightening deformation theory. Introduces the production process of steel bar,the type and the use of bar straightening machine. The paper also did the study work of the GBJ180 seven roller bar straightening machine based on many years experience in GBJ100 seven roller bar straightening machine,introduces the structure and work principle of bar straightening machine, introduces principle characteristics and performance of bar straightening machine, and also puts forward some constructive suggestions.