[0002] With the development of the rubber industry, internal mixers and open mixers in the prior art have exposed more and more defects: high cost, serious environmental
pollution,
high energy consumption, and inability to carry out
continuous production. The ground area is large, and in order to control the temperature of the rubber during production, the new rotor and the more complicated cooling
system used make the production cost more and more high
In order to solve these problems, domestic and foreign countries have turned their attention to continuous production, convenient and low-energy rubber continuous production equipment, but it still has many problems that cannot be ignored. For example,
Chinese patent 201120086371.8 discloses a rubber mixing equipment. The main body of the whole rubber mixing equipment is equipped with a material conveying platform, and is equipped with a controller, a motor and a connecting line to realize continuous material feeding, but this equipment cannot truly realize the
continuous mixing process; Chinese patents 201220225751.X and 201210155837.4 discloses a kind of rubber mixing equipment, which includes a
raw material conveying device, a pre-pressing device, a rubber mixing device and a
cutting device connected in sequence, so as to realize the integrated operation of material feeding, pre-pressing, mixing and
cutting, but it cannot be obtained from Solve the continuity problem of the rubber mixing process fundamentally
[0003] In addition, Chinese invention patent 200710116412.1 discloses a double-
station series combined internal mixer, which is divided into two parts, the upper
station and the lower
station. The upper station is a complete internal mixer, and the lower station is a The internal mixer with the top bolt removed, connects the
discharge port of the upper station with the feed port of the lower station through the
barrel of the connecting section. The upper station adopts a common low-temperature rotor, and the lower station adopts a fast feeding type Low-temperature rotor, this equipment combines two internal mixers into one organically, which fully exerts the
processing capacity of the internal mixer and greatly improves the
processing efficiency of temperature-sensitive rubber materials such as
silica gel. The
filling factor is small, so the steam exhaust is very good, which solves the steam exhaust problem of the single-station internal mixer, and also improves the stability of the rubber quality, reduces the number of labor and
energy consumption; but the two internal mixers involve The entire
control system is extremely complex, and the rotor
processing cost is high, which greatly increases the production cost of the entire equipment, which limits its actual production; moreover, when targeting the same formula, there are many process parameters that need to be determined, and continuous production The realization of this method increases the difficulty;
Chinese patent 201110026212.3 discloses a block rubber
continuous mixing method and equipment, which is equipped with a block rubber continuous
plasticizer and a continuous mixer, and the block rubber raw materials do not need to be processed in the early stage. processing, directly put into block rubber continuous plasticating equipment for plastication, and the plasticized rubber is then mixed by rubber
continuous mixing equipment, so as to realize continuous production of
continuous feeding, unloading, continuous plasticating, and continuous mixing, but in In the above-mentioned twin-screw continuous mixing production process, the control accuracy of the small material dynamic weighing
system is not accurate enough, and there is a deviation in the quality uniformity of the plasticized rubber strip, which leads to a deviation in the final formula ratio and is not conducive to the mixing of the final rubber. mixing quality; therefore, the present invention researches and designs a novel tandem rubber continuous mixing device, which realizes continuous mixing in the real sense.