Something about a rubber mixing mill

In recent years, rubber mixing mill is more and more attention and welcome by enterprises, and more and more enterprises begin to purchase rubber mixing mills applied in production. The following is an introduction to what exactly is a rubber mixing mill.

Here is the content list:

• What is the working principle of a rubber mixing mill?
• How to operate the rubber mixing mill?

What is the working principle of a rubber mixing mill?

The basic working part of the rubber mixing machine consists of the mixing chamber, the rotor, the upper top bolt, and the lower top bolt. In the working process, the chamber, the top bolt, and the bottom bolt form an enclosed space with two rotors rotating opposite each other. The rubber material put into it is subject to the shearing and kneading effect between the rotors, the squeezing effect of the wall of the chamber, and the diversion of the upper and lower top bolts to achieve the purpose of mixing the rubber material evenly.

How to operate the rubber mixing mill?

1. Calculate the amount of primary rubber mixing and the actual recipe by the capacity of the rubber mixing chamber and the appropriate filling factor (0.6 to 0.7).

2. According to the actual formula, accurately weigh the amount of various raw materials in the formula, place raw rubber, small materials (ZnO, SA, accelerator, antioxidant, solid softener, etc.), reinforcing agent or filling agent, liquid softener, sulfur yellow separately and arrange them in order on the shelf.

3. Open the rubber mixing machine power switch and heating switch to the rubber mixing machine preheat, while checking whether the wind pressure, water pressure, voltage is in line with the process requirements, check the temperature measurement system, timing device, power system instructions and records are normal.

4. After the rubber mixing machine has preheated, stabilize it for some time and prepare for rubber refining.

5. Lift the top spigot, put the raw rubber cut into small pieces from the feeding port into the refiner, drop the top spigot and refine the rubber for 1min.

6. Lift the top bolt, add small materials, drop the top bolt and mix for 1.5min.

7. Lift the top spigot, add carbon black or filler, drop the top spigot and mix for 3min.

8. Lift the top bolt, add liquid softener, drop the top bolt and mix for 1.5min.

9. Discharge the rubber, measure the temperature of the rubber with a thermocouple thermometer, record the initial temperature of the mixing chamber, the temperature of the mixing chamber at the end of mixing, and the discharge temperature, the maximum power, the rotor speed.

10. Set the rubber mixing machine roll pitch to 3.8mm, turn on the power switch, make the opener running, open the circulating water valve, then cast the rubber discharged from the rubber mixing machine to the upper package roll of the opener, wait for the rubber temperature to drop below 110℃, add sulfur yellow, cut the knife twice on the left and right, wait for the sulfur yellow to be fully eaten in, the surface of the rubber is relatively smooth, cut the rubber.

11. The rubber mixing machine roll pitch to 0.5mm, put into the rubber thin pass, play triangle package, thin pass 5 times, then roll pitch to 2.4mm or so, put into the rubber package roll, to be smooth surface without bubbles, under the piece, weigh the total mass of rubber, put on a flat, clean metal surface to cool to room temperature, stick a label indicating the rubber formula number and mixing date, parked for use.

Through the above introduction of the working principle and operation method of the rubber mixing mill, I believe that you have a certain understanding of the rubber mixing mill. Qingdao Huicai Machine Manufacture Co., Ltd. is a company specializing in the production of rubber mixing mills, which enjoys a very good reputation in the industry. If you want to buy a rubber mixing mill and other products, you can consider our company’s cost-effective products.