Bending machine is one of the modern mechanical equipment products, bending machine using digital control system as the main system, hydraulic system, mechanical drive system as an auxiliary system, bending machine in use has the characteristics of stable transmission, large pressure, accurate positioning, greatly improve the machining precision of tunnel i-beam. The cold bending machine is widely used in construction projects of highway tunnels, railway tunnels, subway tunnels, water conservancy and hydropower diversion culverts, natural gas pipelines, communication pipes and underground passageways in China. Its advantages are: high precision, small distortion and smooth arc. According to the different needs of users, our company can collocate with different components to achieve cold bending of rails, I-steel and H steel, with high efficiency, easy transportation and convenient operation.
Main parameters of cold bending machine
Total power [12Kw]
Voltage [380V]
Hydraulic system pressure [20Mpa]
Cylinder propulsion speed [1-13mm/s]
Main drive wheel speed [7r/min]
Minimum bending radius [1.5m]
Weight [2380kg]
Outer size [2500mm * 1500mm x 1200mm]
The cold bending machine is made of type steel as raw material by continuous cold rolling. The production of complex section profiles, and can be designed and manufactured according to customer requirements of different specifications of cold bending equipment. For the steel processing industry in the construction of CNC bending machine, is the necessary equipment for manufacturing steel arch.
Cold bending machine can be used for steel, I-steel, miners U steel, C steel, angle steel, channel steel, rail, Fang Gang, steel and other steel arch roll round, diameter, bending angle. The numerical control cold bending machine is mainly used in the tunnel, the subway, the hydropower station, the underground cavern and so on, and the channel steel is bent. Numerical control cold bending machine adopts digital encoder programming to make the hydraulic control system accurate, and the curved steel is automatically formed in one time, and the efficiency is high and the operation is convenient.
Composition of the cold bending machine (working principle):
1, bending machine is a new equipment for tunnel support steel arch manufacturing. The NC cold bending machine consists of six parts, which are the base, the mechanical transmission, the cold bending system, the hydraulic system, the electrical control system and the auxiliary system. The work of CNC bending machine, steel bending required by door bracket system to help push it between two roller, hydraulic bending machine CNC system to launch the hydraulic cylinder to promote dovetail groove and cold bending roller cold steel, to reach a required radian when planning closed hydraulic system, a numerical control forming the mechanical transmission system, the automatic rolling friction and relying on the femoral artery smooth steel moving slowly, and then complete the series of cold work. At the end of the cold bending, the mechanical transmission system of the NC cold bending machine is closed, and the hydraulic system is launched to make the hydraulic cylinder be recovered. The cold-formed steel is placed on the door type bracket of the auxiliary system. The cold work, ensure the material strength, improve the quality of the support steel arch, greatly improves the work efficiency, simple operation, clear. Compared with NC bending machine and press, with outstanding performance.
2, to the construction engineering geological section of some bad habits, in the construction process of tunnel in planning often use steel arch to support maintenance, in order to use number of used steel arch increases, request increased, then planning CNC bending machine of this equipment. It ensures the possibility of continuous work and saves a lot of manpower and material resources.
