Implementation of the optimal dynamic mode movements of the roller forming installation

In order to increase the reliability and durability of the roller forming installation, the optimal dynamic mode of the reciprocating movement of the forming carriage was calculated. When calculating the optimal dynamic mode of motion, the criterion action is used as a criterion for the motion mode, which is an integral over time with an integral function expressing the "energy" of accelerations. The functions of changing the kinematic characteristics of the forming trolley during its movement from one extreme position to another, which correspond to the optimal dynamic mode of reciprocating movement, were calculated. With this mode of movement, the movement and speed of the forming carriage change smoothly, without creating significant dynamic loads in the installation, which in turn has a positive effect on its durability. Taking into account the functions of changing the speed of the forming carriage, the law of changing the angular speed of rotation of its rolling rollers was calculated. The design of a roller forming unit with a drive from a high-torque stepper motor, which is mounted in the rolling rollers of a forming carriage and provides an optimal dynamic mode of reciprocating movement of the forming carriage, is proposed. When using the specified drive in the installation, the quality of the surface of the processed concrete mixture increases, dynamic loads in the elements of the drive mechanism are reduced, unnecessary destructive loads on the frame structure disappear and, accordingly, the reliability and durability of the installation as a whole increases. The results of the work may be useful in the future for clarifying and improving the existing engineering methods for calculating the drive mechanisms of roll forming machines both at the design/construction stages and in real operation modes. Also, the results of the work can be useful in the design or improvement of mechanisms with reciprocating movement of executive elements.