What is the main working principle of three-roller circular press?

The main working principle of the three-roll rounding machine is based on the plastic deformation principle of the material. Through the precise coordinated operation of the three rollers, the metal sheet is continuously rolled and rounded to form a circular tank that meets the requirements. Three-roll rounding machines require a series of preparations and adjustments before they can be put to work. Operators precisely adjust the spacing and angle of the three rollers according to the required diameter and height of the tank. The position and spacing of the working and reducing rollers determine the stress and deformation of the metal sheet during rolling, so the adjustment process requires great care and precision.
When the machine is started, the work rolls begin to turn and feed the metal sheet into the rolling area. The thin plate is subjected to strong pressure and friction between the working roller and the reducing roller, which causes plastic deformation. The function of the reducing roller is to further compress and plasticize the sheet, gradually thinning it and changing its shape.
During the rounding process, the metal sheet is continuously pushed forward by the roller and is subjected to continuous rolling pressure. The plate gradually changes from flat to round, and through the continuous action of three rollers, the required tank diameter and shape are finally obtained. During the entire rolling process, the operator needs to always pay attention to the operating status of the machine and make necessary adjustments according to actual conditions. For example, depending on the material and thickness of the sheet, it may be necessary to adjust the pressing force of the pressure reducing roller or the rotation speed of the working roller to obtain a rounding effect.
After finishing the finishing operation, the operator needs to stop the machine and carry out subsequent finishing work. This may include cleaning the work area, checking the condition of the machine, and preparing the materials and tools needed for the next process.
In general, the core of the working principle of the three-roller rounding machine is to use the coordinated movement of the rollers to achieve continuous rolling and rounding of metal sheets. During this process, precise adjustment, reasonable operation and timely maintenance are key factors to ensure the rounding effect. Through continuous technological improvement and innovation, the three-roller rounding machine has become one of the indispensable and important equipment in the metal processing industry.