The raw rubber or plastic rubber, mother rubber, etc. are put into the two roll gap along the side of the big cone. The roll spacing is controlled at 3-4 mm and rolled for 3-4 minutes to wrap it in the front roll to form a smooth and seamless roll-wrapping glue. At this time, all the glue is removed, the roll spacing is adjusted to 10-11 mm, and then the glue is put into the mixing for about 1 minute. According to the number of roll-covering glue, cut off part of the remaining glue, so that the end of roll-covering glue keeps a certain amount of accumulated glue.
The mixer then adds the mixing agent according to the order of raw materials. The process of rolling the mixing agent into the rubber is a powder eating process. When adding the filling agent, attention should be paid to letting the powder naturally enter the rubber and fully mix with the rubber. Do not take the cutting knife prematurely. At the same time, roll spacing should be gradually widened so as to keep the amount of the accumulated glue within a suitable range. After the powder has been heard and eaten, the remaining glue is thrown down and cut by the center. The knife is divided into two ends, then the liquid softener is added slowly, and the rolling is continued for 4-5 minutes. After all mixing, a roll is cut to reduce the accumulation section. The purpose of refining is to further mix the rubber evenly. The refining methods include inclined knife method (eight knives method), bundling operation method, triangular bag method and tamping method (walking knife method). The more effective method is eight knives method, that is, along the roller. Axial parallel direction with 45 degrees angle coiling, about four kinds, refining 3-4 minutes, refining, once again adjust the roll spacing to 4-5 mm, and then use the cutting method to supplement refining 2-3 times, the next piece parked. Roller greenhouse is controlled at about 45 C. The whole mixing process is completed.
