Seamless thermoformed pipe manufacturing method, involves setting rolling diameter of roll baskets to wall thickness of tube by drive motor, where motor is controlled by programmable controller

摘要

The method involves setting rolling diameter of roll baskets (2) to wall thickness of a tube to be rolled. A mandrel bar is loosened from a hollow block that is transformed to the tube. The rolling diameter is set by a drive motor i.e. speed-controlled servo drive, that is controlled by a programmable controller. Delivery of rolls is controlled by the programmable controller based on the rolling diameter of the roll baskets. Input parameters of control deformation resistances of the hollow block are accounted with setting of the rolling diameter of the roller baskets. An independent claim is also included for a device for manufacturing a seamless thermoformed pipe.