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The working principle of medium frequency pipe bending machi

Medium frequency pipe bending machine is a kind of equipment for processing metal pipes, which bends straight pipes into the desired curved shape by heating, bending and cooling processes. The medium frequency pipe bender is mainly composed of power supply system, heating system, control system and bending system. The following will introduce the working principle of medium frequency pipe bender in detail.

First, the power supply system of the medium frequency pipe bender provides the required electrical energy. Usually a three-phase AC power supply is used, the voltage is raised to a higher voltage level through a transformer, and then the alternating current is converted to direct current through a rectifier device. This is done to provide a stable supply of electrical energy to meet the needs of subsequent process steps.

Next, the heating system serves to heat the pipe. The heating system is generally composed of an intermediate frequency power supply, a sensor, an induction coil and a cooling system. An intermediate frequency power supply converts direct current to intermediate frequency alternating current and generates a strong magnetic field through an induction coil. When the metal pipe enters the induction coil, the small current inside the metal pipe is generated due to the induction effect, which will cause the metal pipe to be heated locally. The sensor will monitor the temperature of the metal pipe in real time, and through feedback control, make the metal pipe reach the required heating temperature. The cooling system is used to cool the induction coils to ensure that the equipment works properly.

The control system is then responsible for the control and monitoring of the entire process. The control system is usually composed of man-machine interface, PLC (programmable logic controller) and sensor. The human machine interface is used by the operator to interact with the equipment, set the required process parameters and monitor the status during the process. PLC controls the flow and timing of the entire processing process according to the parameters set by the human-machine interface. Sensors are used to monitor various parameters such as temperature, pressure and position in real time to ensure stable and reliable operation of the equipment.

Finally, the bending system is the core part of the pipe bending. The bending system is generally composed of a bending head, a pressure arm, a roller and a control machine. When the metal tube is heated to the desired temperature, the bending head positions the metal tube to the desired bending position. The pressure arm controls the bending radius of the metal pipe by applying force. Rollers are used to assist the bending of metal pipes, making the bending process more stable. According to the instructions of the control system, the control structure precisely controls the movement of the bending head and pressure arm to achieve the precise bending of the metal pipe.

In summary, the medium frequency pipe bender provides electrical energy through the power supply system, the heating system heats the metal pipe to the required temperature, the control system controls the parameters and status of the processing process, and the bending system achieves the accurate bending of the metal pipe. In this way, the medium frequency pipe bender can process the straight pipe into various bending shapes to meet the needs of different engineering projects.

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