Application of FGI FD5000S Series Medium Voltage Drive in steel pipe piercing machine
The steel pipe piercing machine is a kind of equipment that puts the solid steel pipe into the oven after high temperature heating and takes it out, compacting the steel pipe under high temperature condition and rotating the steel pipe at high speed after perforating. The perforator plays a key role in the production of steel pipes, in which the running efficiency and running accuracy of the motor on the equipment are crucial to the quality of steel pipes. The FGI frequency inverter has a mature application in the punch machine, which effectively improves the performance of the punch machine and achieves better production results. Next, we introduce the application of FGI FD5000S series medium voltage drive in a site steel pipe piercing machine in East China.
1.Process introduction
The steel pipe piercing machine through the rotation and extrusion of the roll, so that the solid tube blank perforated to form a hollow tube. In this process, the speed of the roll needs to be flexibly adjusted according to factors such as tube billet quality and size.
The steel pipe punching machine in the working process, need to adjust the speed of the roll according to different steel pipe materials, specifications. For example, for steel pipes with thicker walls, a lower speed is needed to ensure perforation quality and equipment stability; For thin-walled steel pipes, the speed can be appropriately increased to improve production efficiency. This requires a wide speed range and high precision of the motor, and the FFGI FD5000S series medium voltage drive can well meet this demand.
2.System configuration
Several FGI FD5000S series medium voltage drives were used in the main motor, pushrod trolley motor and steel pipe shrinkage machine of a site steel pipe piercing machine in East China. PLC according to the production plan and process requirements for remote control and monitoring of the inverter, convenient maintenance personnel to quickly locate and troubleshoot, to achieve automated production.
3.Application advantages
When the equipment is in light load or standby state, the inverter reduces energy consumption by reducing the speed. According to the actual application case data statistics, after using FGI FD5000S series medium voltage drive, energy saving can be achieved by about 15%-30%.
The rapid adjustment of motor speed is realized, the equipment adjustment time is reduced, and the roll speed can be quickly adjusted to the appropriate value when the steel tube specifications need to be replaced, thereby improving production efficiency.
The precise control of the motor speed improves the perforation quality, effectively reduces the scrap rate, and improves the production efficiency. At the same time, the precise control of the magnetic field and torque of the motor ensures that the larger torque output can be maintained even at low speed, and fully meets the requirements of various working conditions during the start-up and operation of the punch.
With over current, over voltage, under voltage, overload and other protection functions; When the perforator is abnormal, protective measures can be taken in time to avoid damage to the motor and other equipment due to overcurrent, overheating and other reasons, extending the service life of the equipment and reducing maintenance costs.
