Speaking of roller, in fact, it can be called roller, more widely used in rotary screen printing machine, and digital printer, as well as mine conveying equipment, there are many transmission and conveying systems including paper making, packaging machinery and sorting and conveying equipment. Roller in our production and life, in fact, is a very important role.

Roller is usually the words are cylindrical parts, general words according to the use of words can be divided into driving roller and driven roller; According to its driving mode, it can be divided into power drum and non-power drum. For the power drum, it can be divided into single chain wheel drum, and double chain wheel drum and single O belt drum and double O belt drum;

Generally speaking, the roller is mostly made of seamless steel tube, but for different processes, it also USES aluminum alloy 6061T5, 304L/316L stainless steel and 2205 duplex stainless steel as materials.

For the production of rollers, we should know that it is mainly the initial roll, and the initial static balance and shaft head interference, and then after assembly welding and fine turning and fine dynamic balance and other processes. In this case, we also need to know that if the tolerance of form and position, such as roundness, cylindricity and straightness, is required to be less than 0.2mm, we will have to go through the cylindrical grinder or roll grinder after finishing the machine.

In addition, we should also pay attention to, if there is any requirement for the surface hardness of roller, a heat treatment process will be added at this time.

For the roller, if divided by function, we actually found that there is to ensure the transmission accuracy, such as the roller in the digital laser printer; Also has the pressure filter effect, such as we in the production of more common papermaking machinery on the calender roll; Still have some requirements for dimensional accuracy is not high, but play a supporting roller.