According to news on June 10, information from the State Intellectual Property Office showed that Guizhou Tire Co., Ltd. applied for a patent titled “An automatic control production method for the beginning of molded rubber.”
The application publication number is CN122165621A, the application number is CN202610288198.0, the application publication date is June 9, 2026, and the application date is March 10, 2026.
The patent summary shows that the invention relates to the technical field of molding rubber production, and specifically relates to a production method for automatic control of the molding rubber starting point. Starting at a low speed, the extruder speed increases stepwise and the head pressure is stably established; based on the meter weight signal fed back by the continuous scale in real time, the speed of the driving device after extrusion and before weighing is adjusted to achieve rapid and accurate adjustment of the meter weight; the driving current and other data are analyzed in real time through the stability algorithm to automatically determine that the production has entered a stable stage and switch to the normal control mode.
The invention solves the technical problems of slow response, high scrap rate and unstable control in the initial stage of rubber extrusion, and effectively improves the size uniformity of the rubber and the dynamic balance pass rate of the final tire product.
Guizhou Tire was established on January 29, 1996 and listed on the Shenzhen Stock Exchange on March 8, 1996. Its registered address is in Guiyang City, Guizhou Province, and its office address is also in Guiyang City, Guizhou Province.
It is an important enterprise in the domestic tire industry, focusing on the tire business, with advanced production technology and a complete industrial chain.
Its main business is tire research and development, production and sales, and the Shenwan industry it belongs to is automobiles – auto parts – tires and wheels, involving concepts such as equity participation in private banks, low prices, and state-owned assets reform.
In 2025, Guizhou Tire achieved operating income of 10.946 billion yuan, ranking 6th among the 22 companies in the industry, higher than the industry average of 10.395 billion yuan and the median of 5.119 billion yuan. There is a gap with the first-place Zhongce Rubber of 44.956 billion yuan and the second-place Sailun Tire of 36.792 billion yuan.
Among the main businesses, the tire sales business was 10.87 billion yuan, accounting for 99.30%.
Net profit was 623 million yuan, ranking 8th in the industry, lower than the industry average of 701 million yuan, but higher than the median of 294 million yuan. The first place was Zhongce Rubber with 4.147 billion yuan, and the second place Sailun Tire was 3.617 billion yuan.
The recent patent situation of Guizhou Tire Co., Ltd. is rich and diverse.
For example, there are invention patents on the load-adaptive horizontal wheel outer support and horizontal wheel assembly for rail transit; there are also related patents on the tire belt stress dispersion structure and its preparation method for heavy-duty engineering.
The following are some recent patent situations:
| Serial number | Patent name | Patent type | Legal status | Application number | Application date | Publication (announcement) number | Publication (announcement) date | Inventor |
|---|---|---|---|---|---|---|---|---|
| 1 | Load-adaptive horizontal wheel outer support and horizontal wheel assembly for rail transit | Invention patent | announced | CN202610639218.4 | 2026-05-11 | CN122166167A | 20 26-06-09 |
Jiang Zhongkai, Hong Yu, Dong Daiqiang, Hu Long, Li Zhengjiang, She Tenglong, Gong Hong |
| 2 | An overload Engineering tire belt stress dispersion structure and preparation method thereof |
Invention patent | published | CN202610561882.1 | 2026-04-27 | CN122143537A | 2026-06-05 | Li Xiaohu, Xu Fuqiong, Cheng Chao , Dong Wenxiao, Chen Xiansong, Tian Huijun, Huang Xun |
| 3 | A factory energy-saving control method and system based on the Internet of Things | Invention expert Lee |
Announcement | CN202610496652.1 | 2026-04-15 | CN122179 962A |
2026-06-09 | Zhou Xuan, Tian Chaoran, Li Zhi, Yang Youping, Liu Yuan |
| 4 | Invention patent | Published | CN202610472912.1 | CN122125934A | 2026-06-02 | Pan Zongxu, Pan Huiyan, Zhang Jie, Shen Shi Yuan, Wu Yi, Zhu Huaqing, Yu Jie, Liu Shengyou |
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| 5 | A tile-increasing radial forming drum and tire secondary molding process | Developed Ming patent |
Effectiveness and publication of substantive examination | CN202610454655.9 | 2026-04-08 | CN122008607A | 2026-05-12 | Chen Xiansong, Li Xiaohu, Dong Wenxiao, Tian Huijun, Liu Yonghuang, Yu Guangyi |
It can be seen from these patents that Guizhou Tire continues to work hard in technological innovation and actively explores new production methods and technologies to enhance its competitiveness and contribute to the development of the tire industry.
In the future, Guizhou Tire is expected to rely on these patented technologies to further improve product quality and production efficiency and occupy a more favorable position in the market.
