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US 4,076,220 AGranted
Method of mixing and kneading control of a rubber kneader
AssigneeBridgestone Tire Company Limited
InventorsKatsutoshi Nakashima, Toshio Kita, Ryuzo Osawa, Takashi Hatanaka
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Abstract
A method of mixing and kneading control of a rubber kneader comprising the steps of detecting the plasticity of a rubber raw material after the rubber raw material and additives are put into a receptacle of the rubber kneader, and controlling total energy spent by the electric motor of the rubber kneader and total revolutions of a mixing and kneading rotor of the rubber kneader in correspondence with the detected plasticity of the rubber raw material.
Claims2
A method of mixing and kneading control of a rubber kneader, comprising the steps of:
- placing rubber raw material and additives into a receptacle for working by said rubber kneader through electric motor means;
- detecting the plasticity of said rubber raw material as a peak electric power;
- comparing said detected peak electric power by a comparison circuit with a predetermined standard peak electric power;
- seeking deviation between said two peak electric powers for calculation of a shift coefficient;
- and
- controlling total electric energy in relation to said shift coefficient to be spent by said electric motor means of said rubber kneader and total revolutions of said shift coefficient of a mixing and kneading rotor of said rubber kneader corresponding to the detected plasticity of said rubber raw material.
3 more elements
Dependencies are inferred from the claim text.