A method for online prediction of Mooney viscosity of rubber compounded by open-kneader

Abstract

An on-line prediction method of the Mooney viscosity of rubber mixing in a rubber mill, which uses the various process parameters detected during the rubber mixing process of the open mill and the established mathematics of Mooney viscosity and process parameters for rubber materials of different formulations. model to predict the Mooney viscosity of the rubber compound during the mixing process; the established mathematical model of the Mooney viscosity and process parameters is an online prediction mathematical model established by a stepwise regression method. The invention does not need to be parked before testing, and can predict the Mooney viscosity of the mixing rubber in the open mill online, saving the rubber parking time; the statistical principle is used to make the prediction result have higher accuracy and reference value, and can be used for Control and adjust rubber mixing parameters; on-line control of rubber mixing quality can also be realized on the open training machine; less investment, simple control, obvious effect and broad application prospects.

Description

technical field [0001] The invention relates to the field of rubber plastic state mixing, especially in the field of measurement and prediction of the mill processing process, in particular to an on-line prediction method for the Mooney viscosity of rubber mixed in the rubber mill. Background technique [0002] The rubber mill is an open rubber mixing machine, which is the earliest and most basic rubber machinery with a relatively simple structure used in the rubber industry. With the application and development of continuous mixer and other equipment, the scope of use of open mixer has been significantly reduced, but the investment of internal mixer is large, and its use is not as wide as that of open mixer. Therefore, in small and medium-sized enterprises, especially reclaimed rubber and small batches In the production of special rubber types and rubber materials, the application is still relatively common. It has been clear in the field that the Mooney viscosity value is...

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Problems solved by technology

Chinese patent 200310105637.9 discloses the "self-adaptive rubber removal control method", which is in the production process of banbury rubber, by controlling the Mooney viscosity index of the mixed rubber to judge the degree of mixing progress, and establishing the parameters of the mixing process and the Mooney mixed rubber. A multifunctional mathematical model of viscosity, but only applicable to the banburying process

Chinese patent application 201010612805.3 discloses "on-line soft measurement method of Mooney viscosity of rubber mixing", which is to take the first sample sampling instead of the conventional air cooling and stop the sampling during the processing of the rubber material through banburying, extrusion, calendering, and kneading. The Mooney viscosity prediction model is established by using the algorithm of the support vector machine function. This invention is suitable for the rubber mixing process with a relatively complicated process, but the rubber mixing process with a simple open mill is not applicable

With the development of low-temperature single-stage rubber mixing in several domestic tire companies, the open mill has attracted people's attention again. However, there is no online quality prediction method for the open mill at present, especially there is no online monitoring of the Mooney viscosity of the mixed rubber in the open mill. Detection method

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