METHOD OF ADJUSTING MIXING PROCESS IN INSIDE TYPE MIXER

摘要

A process for regulating the mixing process of rubber mixtures utilizes an internal or closed mixer having a casing containing two paddles with feed and mixing blades mounted on shafts which extend with parallel axes through a mixing chamber. The shafts are arranged to be driven in opposite directions at variable speeds and the mixer is provided with a pressure-operable plunger for closing the mixing chamber. The temperature of the mixing process is controlled with the aid of a thermometer probe and the mixing sequence is controlled on the basis of energy marks and a superimposed desired/actual value follower control of the mixing temperature via the specific energy supplied to the mixture in the mixing chamber, the speed at which the shafts and hence the paddles are driven and/or the pressure applied by the plunger serving as variables for the temperature control.