| Working principle and power system of pipe bender
The working principle of the pipe bender is divided into: medium frequency induction heating pipe bender, its working principle is to use the medium frequency power supply to heat the steel pipe, at the same time, the steel pipe is advanced at a uniform speed, so that the heating part of the steel pipe along the designed track to walk to form a certain radius of curvature and Angle of the bend.Steel tube in place first, via the radial rotary device of screw gearing adjust good bending radius, by using medium frequency induction heating coil steel pipe bend after heated to a certain temperature, the bent by hydraulic power, cars are steel pipe pushed forward, the adjustment good at heat deformation and bending radius bending, deformation of steel pipe after the water spray cooling,In order to obtain the required bend pipe fittings.
The power system of the pipe bender is mainly composed of motor and reducer. There are two working states, fast forward (backward) and work forward, respectively driven by AC motor and frequency conversion motor.Variable frequency motor is to provide the power of the pipe bender.AC motor is brake and electromagnetic clutch and AC motor linkage control.
Transmission mechanism mainly includes gear set, chain, guide rail, etc.
How does the pipe bender work? The method of pushing large radius elbow (more than 2.5D) is: the pipe with the same diameter is heated by the induction ring using four wheels clamped steel pipe. With the rotation of the rocker arm, the elbow with the same diameter is bent without mandril and core head, and the diameter is not expanded.The method of pushing small radius elbow (below 3D) is to expand large diameter elbow by heating small diameter pipe through medium frequency induction ring through mandrels and horn mandrels.
Pipe bender is our company's leading equipment, mainly used in the production of various large radius of the pipe and push the small radius of the elbow, the pipe bender design is reasonable, reliable operation, easy to operate, with good performance.
Introduction to bending knowledge of medium frequency pipe bender
Intermediate frequency pipe bender bending center Angle is bigger, pipe line segment continues to be the tail did a tangent point B and winding deformation, because of the restriction of fiber effect, close to the tangent point B linear deformation degree increasing, place the shaped pipe unloading, back from the front line carrying, deformation area and cost on the pipe winding deformation load to add winding will no longer like central Angle is smaller.
Twists and turns, however, central Angle increases continuously, has formed the strain hardening effect of the stress in not less than the existing level change, and to avoid twists and turns of pipe elastic recovery, briquetting exert more pressure on pipe fittings, and pipe inside wall thick add reducing the gap between the mandrel and tube, pipe fitting straight line movement more difficult,Then, the resistance of pipe fitting zigzag rolling is increased.The head of other cylindrical mandre can not be tortuous, and the supporting effect of the tortuous section is limited. The inductive effect of these factors will make the external load accepted by the pipe section continue to increase, and the distortion degree will still further increase.
Pipe bender in transportation and movement and installation process need to pay attention to matters
Pipe bender has been widely used in many industries, and each industry has its own characteristics of the pipeline, for example: aerospace pipe bender usually needs high precision, moral flexibility, shipbuilding pipe bender needs particularly large output torque and large specifications of pipe fitting convenient loading and unloading problems.The automotive industry requires a particularly high production tempo and reliability and durability.Before transporting, moving and installing the pipe bender, it is necessary to carefully read the safety precautions for transporting, moving and installing the machine, and strictly implement the provisions in the precautions. Most accidents are caused by human negligence and non-compliance with safety regulations.
Safety precautions for pipe bender transportation and mobile installation should at least include:Pipe bender in transport, lifting, moving, must confirm the machine model in advance and overall dimensions, such as the total weight information, and then choose to bear the weight of the machine wire, hanging pipe bender buckle with the rings, and choose to bear the weight of machine hoisting equipment and handling equipment, pipe bender assembly must be in accordance with the assembly drawing of the instructions,Adequate space must be provided for lifting and erection of the pipe bender.Avoid injuring staff and machine during operation. Personnel unrelated to operation shall not be allowed in the operation area of the pipe bender to avoid injury.
1808-18010.
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