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3. The usage of profiles and flange bending machine
The profiles and flange bending machine is a high efficiency equipment for bending profiles with various specifications, for example, channel steel, angle iron, H beam steel, I beam steel, flat steel, square tube, round and square pipe, can pre bend the end of profiles and bend to round, ring, arc, spiral work piece, once-forming, widely used in aerospace, petrochemical, hydropower, shipbuilding, automobile manufacturing, machinery manufacturing, and steel structure and so on.
4. Overview of machine structure and performance
4.1.1. Overview of structure
The profiles and angle iron bending machine is a three roller arc downward structure. It composed of the machine body, side roller part, auxiliary device, main driving part, sensing device, mold parts, hydraulic parts, and electrical components etc. The machine body adopt plate steel structure, all mechanical parts are installed in the internal and external of machine body, constituting the main mechanical transmission part of machine. The main roller rotation is driven by hydraulic motor. Side rollers were driven by gear through hydraulic motor, to achieve the designed line speed and torque.

4.1.2. Electric control system and hydraulic system are two independent parts, through pipes and electric wire connect with mechanical actuator, hydraulic system and electric control system can be put according to drawing, users can also move them to suitable position according to the workshop and technology operation.

4.1.3. The machine can be equipped with additional device (mold) according to the work piece precision requirement and different profiles.

4.2.1. The performance of the angle iron and flange bending machine

The machine can pre bend the end of profiles, remaining straight edge is less than or equal to two times of the profiles width. All three working rollers are drive roller, and adopt the rolling friction; It is high efficiency, energy saving.

4.2.2. Main roller rotation is driven by the hydraulic motor through hydraulic system. Two side rollers(left roller and right roller) are driven by a hydraulic cylinders, rotating in arc line around the main roller, its function is profiles bending; Moreover hydraulic system drive hydraulic motor, the hydraulic motor drive gear, the gear drive side rollers and chain, the chain drive main roller rotating with side rollers, its function is profiles bending and forming; The supporting roller can be lift up and down, moved forward and back, and rotated, all these movement were driven by hydraulic cylinder, supporting roller's function is prevent profiles twisting during bending it, ensuring the accuracy of the work piece.

4.2.3. All movements of machine are driven by the hydraulic system, controlled by centralized electric control system, user operate machine through the button on the electric control cabinet.
4.2.4. Note: During the process of rolling, the user should not rotate three rollers and lift the supporting rollers at the same time, in order to avoid machine failure. After three rollers are installed with molds, supporting rollers can be lift up and down.