On-line automatic measurement method for Mooney viscosity of rubber

Abstract

The invention discloses an on-line automatic measurement method for the Mooney viscosity of rubber. The method comprises the following steps of: inputting rheological parameters of final mixed rubber which are obtained by a quality inspection system into an on-line Mooney viscosity prediction model, and automatically outputting a Mooney viscosity value ynew; feeding back the Mooney viscosity value ynew to the quality inspection system, judging whether the Mooney viscosity value ynew is within a preset range value of the Mooney viscosity by the quality inspection system, continuing the production and updating the on-line Mooney viscosity prediction model if the Mooney viscosity value ynew is within the preset range value of the Mooney viscosity, and giving an alarm, checking the productionflow and correcting by operating personnel and abandoning the Mooney viscosity value ynew which exceeds the range if the Mooney viscosity value ynew is not within the preset range value of the Mooneyviscosity; and repeating the operation, and finishing the flow until the rheological parameters of the final mixed rubber are not input. By the method, the stay time of the rubber is furthest reducedon the premise that sampling burden is not increased, so the continuity of the production is ensured to a certain extent; a real-time predicted value of the Mooney viscosity is calculated by using the on-line Mooney viscosity prediction model; meanwhile, the reliability of the model is ensured.

Description

technical field [0001] The invention relates to a real-time quality monitoring method in the field of rubber tire manufacturing, in particular to an online automatic measurement method of rubber Mooney viscosity. Background technique [0002] The rubber industry is one of the important basic industries of the national economy. It not only provides daily and medical light industrial rubber products that are indispensable for people’s daily life, but also provides various rubber production equipment or rubber parts for mining, transportation, construction, machinery, electronics and other heavy industries and emerging industries. With the continuous improvement of the production technology level, the market-oriented management mode puts forward higher requirements for the quality of rubber products. [0003] Rubber mixing is the process of refining raw rubber or plasticizing raw rubber and compounding agents into rubber with a rubber mixer. It is the most important production...

AI Technical Summary

Problems solved by technology

The rubber needs to be parked for at least 4 hours for each vehicle, and the subsequent processing can only be carried out after passing the test. However, it only takes 2 to 3 minutes for each vehicle to mix the rubber. The limitation of the technical level makes the detection rate of the rubber Mooney viscosity usually less than 20. %, such a serious hysteresis effect leads to a significant reduction in production efficiency, which seriously restricts the popularization and application of various advanced control technologies and the further improvement of product quality, making rubber tire manufacturers face huge economic risks

In addition, during the measurement process, cutting, sampling, punching and other work are all done manually, which increases the uncertainty of the measurement data, further affects the quality of the rubber, and the processing performance cannot be guaranteed.

Moreover, this detection method requires specialized staff and is equipped with multiple Mooney detection instruments, which increases the cost of various manpower, financial resources, and material resources, and reduces the production efficiency of the enterprise.

Therefore, the hysteresis and uncertainty of the Mooney viscosity value detection has seriously restricted the development of the rubber mixing process for a long time, and it is a bottleneck problem in the improvement of the rubber tire production process.

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