Online automatic measuring method for rubber hardness

Abstract

The invention discloses an online automatic measuring method for rubber hardness. The method comprises the following steps of: when the number of new samples Xnew used for updating a model reaches a threshold value C, performing x-y updating on a hardness online prediction model f for one time; and when the number does not reach a threshold value A, not updating the model until the number reaches the threshold value C, obtaining the updated hardness online prediction model, predicting the rubber hardness value corresponding to the new samples Xnew in the next train number through the updated hardness online prediction model, obtaining the difference between the rubber hardness value and the rubber hardness value which is practically detected, and obtaining an error. By continuously updating the hardness online prediction model by the method, the precise rubber hardness value is obtained, and the quality of rubber is improved. Practical tests show that relatively high precision can be obtained and potential safety hazard is reduced by the method.

Description

technical field [0001] The invention relates to the field of rubber tire manufacturing, in particular to an online automatic measurement method for rubber hardness. Background technique [0002] In recent years, with the increasing demand for rubber in production and life, the rubber industry has developed by leaps and bounds. Coupled with the continuous development of China's automobile industry, it has played a huge role in promoting the rubber industry. No matter in the field of production or life, more and more rubber products are used. With the continuous emergence of new products and the continuous expansion of application fields, newer and higher requirements are put forward for the production of rubber products. [0003] Rubber mixing is one of the most important processes in rubber production, and the effective control of the rubber mixing process directly affects the quality of rubber products. Rubber mixing is a typical batch process with obvious time-varying c...

AI Technical Summary

Problems solved by technology

Such a large hysteresis effect seriously restricts the application of various advanced control strategies and the further improvement of product quality, which also makes manufacturers face the risk of huge economic losses

[0011] (2) Measurement has uncertainty

As mentioned above, all the work in the measurement process is done manually by the staff. On the one hand, the staff only determines the approximate train number information through visual inspection, and the possibility of confusing the train number is very high; Different, will also introduce unnecessary random error to a certain extent

In addition, there may be human errors in the measurement personnel and recording personnel, which further affect the quality of the product

Images