Building Slab Forming MachineCore Causes Of Hydraulic Cut-off Response Lag+item By Item Investigation
1、 Hydraulic System Oil Problems (common)Hydraulic Oil Deteriorates And Viscosity Exceeds The StandardAfter Prolonged Use, The Oil Becomes Thinner, More Impurities Accumulate, And Water Enters, Causing A Decrease In Fluidity. The Valve Core Action Becomes Stuck, And The Command Is Sent To The Oil Cylinder To Slow Down By Half.Oil Temperature Is Too HighThe Continuous Working Oil Temperature Surges, The Oil Becomes Thinner, The Pressure Cannot Be Maintained, And The Solenoid Valve And Oil Cylinder Move Slowly.Insufficient Oil QuantityThe Fuel Tank Is Short Of Oil, The Suction Port Is Empty, The Fuel Supply Cannot Keep Up, And The Lower And Return Blades Are Delayed.2、 Electromagnetic Valve Malfunction (control Core)The Solenoid Valve Core Is Stuck Or Blocked By Oil StainsMud And Iron Filings Are Stuck In The Valve Core, And The Direction Change Is Not Sensitive. The PLC Delays The Direction Change After Receiving A Signal.Aging Of Solenoid Valve Coil And Insufficient VoltageInsufficient Suction, Valve Core Not Pushing In Place, Slow Direction Change, Directly Manifested As Delayed Cutting Response.Electromagnetic Valve Selection Without MatchingLow Flow Rate, Slow Oil Flow, And Delayed Oil Circuit Conductivity.3、 Blockage Of Oil Circuit And Filter ElementThe Hydraulic Filter Element Is Severely CloggedThe Return Oil And Suction Filter Elements Are Blocked, The Oil Flow Is Not Smooth, And The Pressure Is Slowly Established.Bending Of Oil Pipe, Small Inner Diameter, And Air In The Oil CircuitThe Pipeline Is Suffocating, The Fuel Supply Resistance Is High, And The Action Is Delayed; The Air Intake Of The System Will Also Be Accompanied By Shaking And Intermittent Cutting Speed.4、 Pressure And Overflow Valve Setting IssuesThe System Pressure Is Set Too LowThe Pressure Regulation Of The Overflow Valve Is Too Small, And It Acts Before The Pressure Is Established, Resulting In Slow Cutting.Overflow Valve Core StuckContinuously Releasing Pressure, The System Pressure Cannot Increase, And The Cutting Action Response Is Slow And Powerless.5、 Reasons For Mechanical And Control MatchingMeter Encoder/signal DelayThe Encoder Slips, Becomes Loose, And The Circuit Contact Is Poor. The Control System Gives The Cut-off Command Too Late, Which Looks Like Hydraulic Lag.The Tool Holder Guide Rail Is Stuck And Has High ResistanceThe Guide Rail Is Short Of Oil, Deformed, And The Inlay Is Too Tight, Resulting In High Mechanical Resistance And Difficulty Pushing The Oil Cylinder, Which Slows Down The Response.PLC、 Relay Contact AgingThe Output Signal Is Delayed, The Contact Is Poor, And The Instructions Given To The Solenoid Valve Are Inherently Delayed.Quick And Easy Troubleshooting Sequence (from Top To Bottom)Check The Oil Temperature, Quality, And Quantity, Replenish Oil When Lacking, And Replace Oil When It Deteriorates;Clean Or Replace The Hydraulic Filter Element;Cut Off The Power, Disassemble, Wash And Cut Off The Solenoid Valve Core, And Clean The Oil Sludge;Raise The Pressure Of The System Overflow Valve Slightly;Exhaust And Check If The Oil Pipe Is Bent And Holding Air;Check The Encoder Circuit And Lubrication Of The Tool Holder Guide Rail.
