A rubber mixing system and rubber mixing method for supplementary final refining and reducing stage

Abstract

The invention relates to a rubber mixing system and a rubber mixing method thereof, and provides a final mixing supplemented and section reduced type rubber mixing system. The system comprises an internal mixer, a central open mill, a first open mill unit, a second open mill unit, a rubber sheet outlet open mill and a rubber sheet cooling system, wherein the internal mixer is arranged on a rack, the central open mill is arranged at the bottom of the internal mixer, a left material guide device and a right material guide device are arranged on the first open mill unit and the second open mill unit respectively, an elevation rubber feeding conveying belt is arranged at the tail end of the internal mixer in a joint manner, a rubber feeding switching conveying belt is further arranged at a discharging port of the elevation rubber feeding conveying belt, a discharging conveying belt is connected and arranged at discharging ports of the first open mill unit and the second open mill unit and joined with the rubber sheet outlet open mill which is connected with the rubber sheet cooling system. The rubber mixing system and the rubber mixing method have the following advantages: the production efficiency and the automation degree of equipment are increased, energy consumption is reduced, and the technical quality stability of rubber sheets is improved.

Description

technical field [0001] The invention relates to the field of rubber mixing, in particular to a rubber mixing system and a rubber mixing method. Background technique [0002] Rubber mixing is the operation of kneading raw rubber or rubber with a rubber mixing machine. Raw rubber is kneaded separately to improve its plasticity, which is called mastication. The plasticized raw rubber and the compounding agent are collectively called mixing. Before the rubber compound is calendered, extruded, and molded, in order to further increase the plasticity, improve the uniformity of the texture and promote its softening, it is called heat refining by mixing and heating with an open mill. [0003] The original equipment and process method of the rubber mixing system: 4 sets of 660 open mills are arranged in series in sequence, and each machine is operated by an operator. The rubber is mixed inside, the rubber material is discharged, and then the rubber is mixed through 4 open mills in ...

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Problems solved by technology

[0004] China Invention Patent Application (Application No.: 201110148659.8 Application Date: 2011-06-03) discloses a rubber mixing system and rubber mixing process, which is characterized in that: after the rubber is discharged from the central mill, it is transported to the downstream groups of mills Add sulfur accelerator during the process (that is, when the rubber is on the conveyor belt). This open method of adding sulfur accelerator has limitations. Some granular additives are easy to roll from the rubber to the side of the conveyor belt, causing The loss of additives and environmental pollution, the scope of use of the formula is small

[0005] China Invention Patent Application (Application No.: 200610171068.1 Application Date: 2006-12-25) discloses a one-stage rubber mixing process with auxiliary machines in parallel. Equipped with a set of sulfur adding device, the investment in equipment is large; when adding sulfur, the dust is flying and lost, the environmental pollution is serious, and the error probability of adding sulfur to each mill separately is relatively high

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