The working cycle law of the pipe bending machine: since the power required by the pipe bender comes from the hydraulic system, in addition to manual loading and unloading, it is bold to imagine slotting above the tyre wheel and the roll bending wheel. The two sides of the groove are located on the tyre wheel and the roll bending wheel respectively. The upper part of the groove side is two parallel planes, and the lower part is a ring with the same radius tangent to the plane and the outer diameter of the pipe fitting, so that the pipe can be installed from the upper direction of the tyre wheel and the roll bending wheel. The design of the hydraulic system can easily realize the automatic completion of the bending work cycle. In a working cycle, the actions and functions of the hydraulic circuit are as follows: oil pump stops unloading – clamping cylinder fast forward (tire wheel rotation, clamping pipe fittings) – clamping cylinder work forward (bending pipe fittings) – clamping cylinder pressure maintaining – rolling cylinder work forward (rolling pipe fittings) – rolling cylinder fast backward (rolling wheel reset) – clamping cylinder fast backward (tire wheel reset) – oil pump unloading. In order to make the pipe installation fast and convenient, so as to improve the work efficiency and simplify the structure.
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