Hydraulic pipe bending machine is a new type of pipe bending tool with pipe bending function and lifting function. It has many advantages such as reasonable structure, safe use, convenient operation, reasonable price, fast loading and unloading, easy to carry, and one machine for multiple purposes. It occupies a large share in the domestic hydraulic pipe bending machine market, mainly used in factories, warehouses, docks, Installation of pipes and repairs for railways, automobiles, etc. In addition to the pipe bending function, it can also be used as a separate hydraulic jacking machine by removing the pipe bending parts (oil cylinder).
The working principle of the hydraulic pipe bending machine: the high-pressure oil output by the electric oil pump is sent into the working cylinder through the high-pressure oil pipe, and the high-pressure oil pushes the plunger in the working cylinder to generate thrust, and the pipe is bent through the elbow parts. The general structure of the hydraulic pipe bender: the pipe bender is generally composed of an electric oil pump, a high-pressure oil pipe, a quick connector, a working oil cylinder, a plunger, and a pipe bending part (including the upper flower plate, the lower flower plate, the die head, and the roller shaft). Hydraulic pipe bending machines are suitable for installing pipes and repairing in factories, warehouses, docks, buildings, railways, automobiles, etc. In addition to the pipe bending function, it can also be used as a separate hydraulic jacking machine by removing the pipe bending parts.
Hydraulic pipe bending machines are mainly used for plastic forming of pipes. In daily life, pipe bending machines can be divided into CNC pipe bending machines, hydraulic pipe bending machines and other types. Hydraulic pipe bending machine has the advantages of multiple functions, reasonable structure, simple operation, convenient movement, and quick installation. In addition to the pipe bending function, the pipe machine can also use the oil cylinder as a hydraulic jack. Compared with the CNC pipe bending equipment, it has the characteristics of low price and convenient use, and occupies the leading product position in the domestic pipe bending machine market.
Do it carefully before operation 1. The machine tool must be well grounded, and the wire should not be less than 4mm2 copper flexible wire. It is not allowed to connect to the power supply voltage exceeding the specified range, plug-in plug-ins cannot be plugged in with electricity, and the control circuit cannot be tested with a megohmmeter, otherwise the device may be damaged. . 3. Proximity switches, encoders, etc. cannot be hit with hard objects. 4. Do not hit the display unit with sharp objects. 5. It must be placed in a ventilated place, and it is forbidden to work in dust and corrosive gases. 6. Do not install or PC input and output without permission. 7. When changing the power supply of the machine tool, the direction of the motor must be reconfirmed. 8. The machine tool should be kept clean, and special attention should be paid to the fact that there should be no foreign objects in the sliding grooves such as clamping blocks and sliders. 9. Regularly add it to the chain and other sliding parts. 10. The power supply must be disconnected during cleaning and maintenance. 11. Preparation before starting: check whether the oil level of the fuel tank reaches the oil level line, add oil to each lubrication point, start the machine to confirm the steering, check whether the oil pump has any abnormal sound, and check whether there is oil leakage in the hydraulic system after starting the machine (the angle encoder is not allowed to refuel). ); 12. Pressure adjustment: adjust the pressure with an electromagnetic relief valve to ensure that the system pressure reaches the required working pressure, generally not higher than 12.5Mpa. 13. Mold adjustment: mold installation, requiring mold and clamping block to be centered, clamp The block can be adjusted with bolts; the booster block is aligned with the mold, and the booster block is adjustable; aligned with the mold, loosen the bolts of the core head frame, and then tighten the bolts after adjusting the center.
During the operation, be careful 1. When the machine tool is started, pay attention that the human body should not enter the range that the rotating arm rotates and sweeps. 2. When the machine tool is working, all personnel are prohibited from entering the space swept by the rotating arm and pipe fittings! 3. The hydraulic system of the machine tool adopts YA-N32 ordinary hydraulic oil (original grade No. 20), which should be replaced once a year under normal circumstances, and the oil filter must be Clean at the same time. 4. When adjusting the machine tool (mold), it should be adjusted by pressing the button by yourself. Never one person adjusts on the machine tool and another person operates on the control cabinet. 5. The core rod should be removed when adjusting the machine tool or emptying the car. 6. The hydraulic system pressure should not be greater than 14Mpa. 7. When manually adjusting the speed of the side push cylinder, the arm should be rotated to ≥ 900. The adjustment speed is synchronized with the line speed of the edge of the rotating arm rotating the bending die. It is forbidden to push the line whose speed is greater than the edge of the rotating die under the manual state. speed. 8. Generally, the tension of the chain should be checked after the machine has been used for a period of time, and the tension of the upper and lower chains should be kept consistent. 9. In the core bending mode during automatic operation, before the bending arm returns, the operator must ensure that the core head is in the pipe, or ensure that the mandrel is not blocked when the bending arm returns, otherwise, the core head or core rod may be damaged. Bend or break. After the work is over, cut off the power supply and do a good job of cleaning and lubrication.
Maintenance method of hydraulic pipe bender 1. Each joint of the hydraulic pump station of the hydraulic pipe bender is equipped with oil-resistant rubber sealing rings. If the sealing ring is damaged or leaks oil, it should be replaced in time. 2. When cleaning the oil tank of the hydraulic elbow, clean the oil inlet filter of each pump. 3. If it is found that the forwarding and retreating switching fails, first check whether the solenoid valve is operating, such as the solenoid valve is operating normally, and then check whether the sequence valve 6X3, the relief valve YF-L20H4 or the one-way unloading valve 4HD3 is stuck by impurities. 4. Within 1-2 months after the hydraulic pipe bender is used, clean the oil tank and filter the hydraulic tank once. 5. Check the fasteners in each part to make them in a fastened state.
