Production method for mixing rubber material at low temperature

Abstract

A production method for mixing rubber material at a low temperature adopts a novel rubber mixing method improved on the basis of a low-temperature mixing principle so as to realize the high-quality and high-efficiency novel technology of mixed rubber production. An internal mixer is utilized and low-temperature mixing and low-temperature material discharge are taken as the objective function, a plurality of full automatic open mills are configured at the lower part of the internal mixer, supplementation mixing is carried out under low-temperature conditions so as to achieve automatic curing temperature, and the low-temperature mixing is ensured during the integral rubber material manufacturing process, and the purpose of high-quality and high-efficiency mixed rubber production can be achieved. The rubber material is put in the internal mixer so as to be mixed, the rubber material is discharged to an open mill number 1 after reaching the temperature reuquired by the technology and then rubber smashing and temperature reduction are carried out, then rubber material is conveyed to one of the open mills in an open mill set through a conveying device and the supplementation mixing is carried out, and the rubber material that is processed through the supplementation mixing is conveyed to an open mill number 8 and the piece unloading process can be carried out.

Description

technical field [0001] The invention relates to a low-temperature mixing production method for improving the quality of mixed rubber, which belongs to the field of rubber tire production. Background technique [0002] With the continuous innovation of rubber tire manufacturing technology, the use of high-efficiency and high-quality mixing methods for various rubber compound formulations can effectively improve tire production quality and use safety. [0003] At present, the rubber mixing method mainly focuses on the following two aspects. One is how to improve the dispersion of additives and the overall uniformity of rubber on the basis of ensuring the physical and mechanical properties of rubber; the other is how to improve production efficiency and reduce labor costs. . The improvement of mixing efficiency and quality by improving raw materials, rubber mixing process and rubber mixing equipment is generally implemented. At the same time, improving the automation of rubbe...

AI Technical Summary

Problems solved by technology

[0008] 1. The debinding temperature of the masterbatch is high, and the carbon black is not easy to disperse during the supplementary mixing of the open mill, and it is easy to oxidize under high temperature conditions;

[0009] 2. Lack of temperature division during the variable-speed mixing process of the internal mixer. For different formulations, such as whether to add white carbon black and silane coupling agent, the rubber discharge temperature cannot be accurately controlled, and it is easy to form oxidative chain scission of rubber molecules. There are more branching reactions, and more low-molecular substances are produced;

[0010] 3. The mixing cycle of each car rubber is long, which is not conducive to the improvement of production efficiency;

[0011] 4. The dispersion speed and uniformity of sulfur, accelerator and other materials added to the mill are low

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