Zhongzhong Technology obtained patents related to precision mill guide rails, stabilizing rolled material movement, reducing accidents, and adapting to different profile steels.

March 20 News: According to the State Intellectual Property Office, Zhongzhong Technology (Tianjin) Co., Ltd. has applied for a patent titled “Adjustable Fine Rolling Mill Entrance Guide,” with authorization announcement number CN223996941U, granted on March 17, 2026. The application number is CN202520826020.8, with publication date March 17, 2026, and application date April 28, 2025. The inventor is Wang Xinyi. The patent agency is Beijing Power Patent Agency (Special Partnership), with patent agent Wu Ying. The classification code is B21B39/16.

Patent Abstract: The utility model provides an adjustable fine rolling mill entrance guide, including a guard plate, an adjustment plate, and an adjustment component; there are two guard plates, forming a guiding channel between them to restrict the movement direction of the workpiece to be rolled, which corresponds to the rolling mill roller track; the two adjustment plates are located on both sides of the guard plates and respectively fit against the two inner walls of the workpiece; the adjustment component is set inside the guard plate to control the distance between the adjustment plate and the guard plate. The beneficial effects of this utility model include: the guiding channel formed by the guard plates stabilizes the movement state of the workpiece before entering the rolling mill, reducing rolling accidents, ensuring personal and equipment safety, improving the rollers and workpieces, and enhancing the strength, rigidity, and compatibility of the guide; the adjustment plates on both sides of the guard plates enable adaptation to different specifications of H-shaped steel to be rolled.

Tianyancha data shows that Zhongzhong Technology (Tianjin) Co., Ltd. was established on June 26, 2001. The legal representative is Ma Bingbing. The industry is general equipment manufacturing. The company is medium-sized, with a registered capital of 629.53808 million RMB and paid-in capital of the same amount. The registered address is No. 65, High-tech Avenue, Outer Ring Development Zone, Tianjin Binhai New Area. The company has invested in 7 other enterprises, participated in 83 bidding projects, and holds 25 trademark records, 824 patent records, and 37 administrative licenses.

Recent patent applications include:

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