Method for controlling rolling of underfeed winder based on mechanical CAD model

Abstract

The invention relates to a method for controlling the rolling of an underfeed winder based on a mechanical CAD model. In the method, a simulation data curve which is highly close to the full range of the change of real object diameters is acquired at one time by utilizing CAD drawing simulation technology; a winder system is directly operated in an error controllable range according to simulationdata; and a diameter error of a corrected final finished product roll is less than 1 millimeter; the pressure control change of a paper roller is continuous and stable without sudden change; and the rolling quality of a finished product paper roll is stable. The method has the characteristics of low cost, simplicity, reliability, high operation speed, and stable and high quality of finished roll product.

Description

technical field [0001] The invention relates to the control technology of a down thread rewinder, in particular to a method for controlling the winding of a down thread rewinder based on a mechanical CAD model. Background technique [0002] At present, as one of the main equipment in the field of papermaking machinery, the gap between the domestic technical level and the world's advanced level is gradually narrowing, and the down thread rewinder is widely used due to its technical advantages in high-speed performance. , the high-speed down thread rewinder that can be independently produced in China can reach the technical indicators of a maximum width of 5 meters and a maximum speed of 2500 meters per minute. [0003] In order to avoid mechanical resonance caused by the front and rear bottom rollers of the bottom thread rewinder under high-speed rotating conditions, the diameter of the rear bottom roller is generally designed to be larger than the diameter of the front botto...

AI Technical Summary

Problems solved by technology

However, the errors caused by the above measurement and control methods will make the pressure control on the finished paper roll discontinuous and uneven, and eventually cause the finished paper roll to be either too loose or too tight, the winding end faces are uneven, and even the rolls cannot be divided naturally, which greatly affects the final quality of the finished product