Automatic cold bending machine

Abstract

The invention discloses an automatic cold bending machine. The automatic cold bending machine comprises a base, a pair of compression roller assemblies, a pair of driving roller assemblies, a top roller assembly and a console; each compression roller assembly comprises a pair of compression roller rotating shafts, an upper compression roller, a lower compression roller and a compression roller motor; each driving roller assembly comprises a horizontal roller, a vertical roller, a linkage structure, a vertical roller motor and a shear fork type hydraulic lifting frame; the top roller assembly comprises an oil cylinder, a top roller frame and a top roller; and in the conveying direction of a workpiece, one compression roller assembly, one driving roller assembly, the top roller assembly, theother driving roller assembly and the other compression roller assembly are sequentially arranged on the base. The automatic cold bending machine can achieve mechanical integrated operation of feeding, clamping, transmission and bending, is suitable for bending operation of steel bars in complex shapes, is high in automation degree and promotes the production efficiency.

Description

Technical field [0001] The invention relates to the technical field of steel processing. More specifically, the present invention relates to an automatic cold bending machine. Background technique [0002] The cold bending machine is mainly used in the bending of I-beam, channel steel, angle steel, U-shaped steel and other profiles during the construction of tunnels, subways, hydropower stations, and underground caverns. In the tunnel construction process, the steel arch frame is mainly used for the initial support of the tunnel, and the arch frame is usually processed by the arch frame cold bending machine. The cold bending machine is composed of a base, a mechanical transmission system, a cold bending system, a hydraulic system and an electrical control system. The existing cold bending machine has the following problems: first, the mechanical transmission system usually requires the staff to manually tighten a pair of lead screws for each pressure roller structure, which is ...

AI Technical Summary

Problems solved by technology

The existing cold bending machine has the following problems: first, the mechanical transmission system usually requires the staff to manually tighten a pair of lead screws for each roller structure, which is time-consuming and laborious, and the adjustment of the upper roller may not be in place; second, The power is the driving roller on the side. The surface area of ​​the driving roller is large and the contact area is small. When the bending angle is large, it may cause insufficient power; third, the console is operated by buttons without digital control. When bending, you need to watch the button on the steel At the same time, the buttons are manipulated to bend accurately. Since the buttons are all inching type, the action will stop as soon as the finger leaves the button. The requirements for the staff are high. Compared with the processing of the arch frame, the technology is difficult, the process is cumbersome, and the manual workload is large.

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