Rubber mixing production line and rubber mixing method of series plus one-time method

Abstract

The invention belongs to a polymer material processing technology, and particularly relates to a rubber mixing production and method of tyre mixing rubber. The production line comprises a small-size internal mixer, a large-size internal mixer, a first open mill, multiple second open mills and a sheet discharge machine, wherein the small-size internal mixer, the large-size internal mixer and the first open mill are sequentially arranged in series. The method comprises the following steps of: 1) adding butadiene styrene rubber and rubber ingredients to the small-size internal mixer; 2) adding white carbon black, a silane coupling agent and carbon black to the small-size internal mixer; 3) directly adding the material after mixing by the small-size internal mixer to the large-size internal mixer; 4) discharging the rubber to the first open mill; 5) discharging sheets from the first open mill to the second open mills which are connected in parallel; and 6) discharging the sheets to the sheet discharge machine after processing on the multiple second open mills which are connected in parallel. The invention has the beneficial effects that the problems of carbon black leakage and serious surrounding environmental pollution in an original rubber mixing system by virtue of a once-through method are solved, and accuracy in weighting is achieved, the error caused by the secondary weighing is reduced.

Description

technical field [0001] The invention belongs to the processing technology of polymer materials, and in particular relates to the rubber mixing production and method of tire mixed rubber. Background technique [0002] Mixing is a rubber processing technology that mixes rubber (raw rubber) with various compounding agents (see rubber compounding) in a rubber mixer. In order to be able to add powdery compounding agents to rubber, the raw rubber must first be masticated to improve its plasticity and fluidity. The mixing process is the most basic process of rubber processing. The quality of the mixed rubber after adding the compounding agent has a decisive influence on the process performance of the semi-finished product and the quality of the finished product. [0003] The rubber mixing process is essentially a process in which the compounding agent is uniformly dispersed in the raw rubber, the granular compounding agent is in the dispersed phase, and the raw rubber is in the co...

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned one-step production line has limited improvement in the quality of the rubber compound, and has problems such as poor operating environment, small range of formulations, and inability to complete the processing of special formulations for green tires with high silica content.

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