AUTOMATIC MIXING ROLL FOR RUBBER MIXING WITH SYMMETRICAL COMBINATION STRUCTURE OF EXTRUDING DIE AND EXTRUDING SCREW

摘要

The present invention relates to an automatic mixing roll for kneading. The object of the present invention is to solve the problems of heat generation caused by the loading of a discharged kneaded material to a vacant space (54) between an extruding screw (60) and an extruding die (52) and a change in physical properties of a device, and a decrease in rotational speed of the extruding screw (60) and ejection amount. In the automatic mixing roll for kneading according to the present invention, the extruding screw is installed below two kneading rotors mounted in a chamber so that a kneaded material can be conveyed and reintroduced. A structure in which the extruding screw is in close contact with the extruding die is suggested so that any undesired space is not formed except a discharge path between the extruding screw and the extruding die. According to the present invention, it is possible to reduce the discharge load of a rubber blend kneaded through the structure in which the extruding screw is in close contact with the extruding die, and thus to prevent a change in physical properties of a device and to improve an ejection rate significantly.