What are the preventive measures for blow molding machine hydraulic system failure?

To prevent the hydraulic system failure of the blow molding machine, measures can be taken from daily maintenance, oil management, component inspection, system monitoring, etc., as follows:
Daily maintenance
Keep the equipment clean: Regularly clean the outside of the hydraulic system of the blow molding machine to remove dust, oil and other debris to prevent them from entering the hydraulic system. Pay special attention to cleaning the surface of the oil tank, oil pipe, radiator and other components to ensure good heat dissipation and avoid excessive oil temperature due to the accumulation of debris affecting the heat dissipation effect.
Prevent external force collision: During the operation and parking of the equipment, avoid the oil pipe, oil cylinder and other components of the hydraulic system from being hit by external forces to prevent damage such as oil pipe rupture and oil cylinder deformation, which may lead to hydraulic oil leakage or system failure.
Tighten the connection parts: Frequently check the connection bolts, pipe joints, etc. of each component of the hydraulic system to ensure a firm connection to prevent the connection parts from loosening due to equipment vibration, causing hydraulic oil leakage.
Oil management
Choose the right oil: According to the working requirements of the hydraulic system of the blow molding machine, choose a hydraulic oil with good performance such as appropriate viscosity, oxidation resistance, and wear resistance. Hydraulic oils of different brands and models have different performances. They should be selected strictly in accordance with the requirements of the equipment manual. Different types of hydraulic oils should not be mixed at will.
Regularly replace the oil: replace the hydraulic oil according to the prescribed cycle, generally every 2000-3000 hours or half a year to a year. The specific cycle can be adjusted appropriately according to the frequency of use of the equipment and the working environment. At the same time, when replacing the hydraulic oil, the oil tank and filter should be thoroughly cleaned to prevent impurities in the old oil from remaining.
Prevent oil contamination: During the storage and filling of hydraulic oil, clean containers and tools should be used to prevent dust, moisture and other pollutants from mixing into the oil. During the operation of the equipment, ensure that the breathing holes of the oil tank are unobstructed to prevent external pollutants from entering the oil tank. In addition, regularly check and replace the air filter of the hydraulic system to maintain its good filtering performance.
Component inspection
Regularly check the seals: Seals are key components to prevent hydraulic oil leakage, and their wear should be checked regularly. Generally, check the seals of oil cylinders, oil pumps, valves and other components every 1-2 months. If the seals are found to be aging, deformed, worn, etc., they should be replaced in time to prevent hydraulic oil leakage and ensure the normal pressure of the system.
Check the hydraulic pump and motor: Regularly check the working status of the hydraulic pump and motor, including noise, vibration, temperature, etc. If abnormal noise, excessive vibration or high temperature is found, it may be that the internal parts of the pump or motor are worn or damaged, and they should be repaired or replaced in time. At the same time, regularly check its output flow and pressure to ensure that its performance meets the requirements.
Check valve components: Regularly check valve components such as overflow valves, pressure reducing valves, and reversing valves, mainly to check whether the valve core is flexible, whether the spring is elastic, and whether the seal is reliable. If the valve core is found to be stuck, it can be cleaned and debugged; if the spring fails or the seal is damaged, the corresponding parts should be replaced in time to ensure the normal operation of valve components and maintain the stability of system pressure and flow.
System monitoring
Install monitoring instruments: Install pressure sensors, temperature sensors, oil contamination monitors and other monitoring instruments in the hydraulic system to monitor system pressure, oil temperature, oil contamination and other parameters in real time. Once the parameters exceed the normal range, an alarm can be issued in time so that the operator can take appropriate measures.
Periodic performance testing: Perform performance tests on the hydraulic system at regular intervals, including tests on system pressure, flow, movement speed and force of actuators. By comparing with the original parameters or standard parameters of the equipment, timely discover changes in system performance, predict possible failures in advance, and take preventive maintenance measures.
Operator training
Strengthen operating skills training: Ensure that operators are familiar with the working principle, operating procedures and precautions of the hydraulic system of the blow molding machine, and can operate the equipment correctly to avoid hydraulic system failures caused by misoperation. For example, when starting and stopping the equipment, operations must be performed in the prescribed order to avoid hydraulic shock caused by sudden start or stop.
Improve fault diagnosis ability: Provide fault diagnosis and emergency response training to operators so that they can promptly detect abnormal phenomena in the hydraulic system during equipment operation, such as noise, vibration, increased oil temperature, etc., and can preliminarily determine the cause and location of the fault, take appropriate emergency measures, and prevent the fault from further expanding.