Apparatus and method for kneading a rubber material

An apparatus for kneading a rubber material comprising: an inner mixer disposed at an upstream side of a group of at least two kneading lines which are arranged side by side, which kneading a rubber material with a nichtvulkanisierenden composition agent, each line of the kneading lines has at least two open roll mixers, which are connected in series with each other is are, and each of the open roll mixer with a pair of kneading rolls, a conveyor for re-kneading, and provided a feed conveyor; a final mixer, which is disposed at a downstream side of the group of kneading lines, which kneads intermediate kneaded rubber which has been output from the group of kneading lines, with a vulcanizing agent compound; Measuring means which are arranged between the internal mixer, and the group of kneading lines; Distribution means, which are arranged between the internal mixer and the group of kneading lines which a pre knetetes gum, which is measured by the measuring means by a selectively moving between the kneading lines to at least ...