Patent Certificate
Invention patent (No. 69)
Source:DOFA Update:2026-07-15

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Certificate No.: 7228389


Title of Invention: A Fine Adjustment Device for Rolling Mill Guides


This invention falls within the technical field of metallurgical rebar rolling equipment. A fine adjustment structure is designed for guide, the core fitting of rolling mills. Its core innovation enables precise and convenient adjustment of guides, improves the dimensional accuracy of rolled steel products, lowers commissioning difficulty and cuts production loss. Together with the previously patented rebar mill guide with easy storage structure, these two patents are matching technologies developed by the same R&D team to solve different pain points of rolling mill guides.


Patentee: Hefei Dongfang Energy-saving Technology Co., Ltd.Address: No.239 Ziyun Road, Hefei Economic and Technological Development Zone, Hefei City, Anhui Province, P.R.China, Postcode: 230601


Inventors: Zhao Shizhang, Wu Peng, Yu Yinghai, Xiao Dongdong, Wu Cuifeng, Shi Xuanju, Huang Yingchao


Patent No.: ZL 2022 1 0550016.4Grant 


Publication No.: CN 114888099 


BFiling Date: May 20, 2022Grant 


Publication Date: July 26, 2024