Clamping failure of the vertical injection molding machine

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1. No mold locking -- Treatment method: (1) Check the safety door travel switch and repair it. (2) Check the 24V5A power supply in the electric box, change the insurance and power box. (3) Check whether the spool is stuck, clean spool. Check whether the I/O plate has output, whether the solenoid valve is live. Check whether the hydraulic safety switch is pressed and whether the mechanical lock lever baffle is opened. 2. Hinge ring of mold opening and closing machine -- Treatment method: (1) Check whether the lubricating oil pipe is disconnected. If so, you must reconnect the oil pipe. (2) : small amount of lubricating oil, increase the amount of lubricating oil, it is recommended that 50 mold oil once or manually add enough lubricating oil. (3) Large clamping force, check whether the mold needs large clamping force, reduce clamping force. (4) The amplifier plate current adjustment, check whether the current parameters conform to the accepted standards, readjust the current value. (5) The parallelism is out of tolerance, and a dial indicator is used to check whether the parallelism of the first two plates is greater than the acceptance standard; Adjust the parallelism. 3. Wait a few seconds to open the die -- How to do it: (1) Slow starting speed, check whether the screw damping is too large, adjust the screw damping hole. (2) damping screw middle hole is too large, check whether the Y hole screw damping is too large, change the center hole fine damping nail. 4. Die opening crawl -- Treatment: (1) The second plate guide rail and Corinth pillar wear much, check the second plate guide rail and Corinth Pillar, replace the second plate copper sleeve, Corinth Pillar, add lubricating oil. (2) the mold opening speed pressure adjustment is improper, set the flow rate 20, pressure 99 when the clamping plate should not crawl, adjust the flow rate proportional valve hole, or pilot valve hole, adjust the proportional valve linear current value. (3) There is air in the pipe and oil cylinder, exhaust. 5. Mould opening does not move -- Treatment method: (1) Increase the die opening speed, pressure flow is too small and not adjusted well, check the die opening speed, pressure is appropriate, increase the die pressure, speed. (2) mode-locking electronic scale zero change, check whether the mode-locking straightening<a href="https://www.hisson.com/product" rel="noopener noreferrer" target="_blank"> injection moulding machine </a>ends at zero, re-adjust the electronic scale zero. (3) Check whether the back hinge. 6. The die will become tighter or looser during automatic production -- Treatment method: (1) Mold adjusting solenoid valve leakage, check whether the solenoid valve is "O" type, replace the solenoid valve or whether the solenoid valve does not work with 24V electricity. (2) if there is any adjustment mode action when manually playing other actions, and see whether the valve is stuck. 7. When other actions work after clamping, fully automatic mould opening slowly -- Treatment method: (1) Oil plate leakage, check or replace the express locking valve, replace the oil plate. (2) The opening valve leaks, start the oil pump and the clamping stop, press the injection platform or injection action, whether the second plate moves back, replace the opening oil valve. Normal for open die not to move. 8. Only the action of opening the mold when clamping the mold -- Treatment method: (1) Connect the wrong line, check whether 24VDC to the valve, check the line and wiring. (2) the card valve or loaded wrong spool, check whether the spool is loaded wrong, or blocked, reloaded spool or clean. Under normal conditions, the die opening action is not moved. 9. Poor clamping mode -- Treatment method: Holes A and B are improperly adjusted. When the system flow rate is set at 20 and pressure is 99, observe whether the clamping action crawls, and adjust or change the valve. (2) There is air in the oil path, listen to the sound of air in the oil path, check whether there is air bubble in the oil, need to exhaust. (3) The amplifier plate oblique rise and fall adjustment is not appropriate, observe the ammeter current value and fluctuation change or with the speed is proportional to adjust the amplifier plate. 10. No high pressure for mold locking, beyond stroke -- Treatment method: The limit switch exceeds the limit, check whether the mold adjustment is appropriate, adjust the appropriate mold thickness; Check if the motor is in normal condition. (2) the hydraulic limit exceeds the stroke, the electronic ruler stroke position is appropriate, check whether the mold adjustment is appropriate, appropriate mold adjustment forward. 11. Manual die opening termination, semi-automatic die opening termination without die opening -- Processing method: (1) Mold opening valve leakage, manual shooting after the table action, observe whether the second board back, replace the mold opening valve. (2) Check the maximum stroke and pressure flow of the electronic ruler. 12. No thimble action -- Treatment: The thimble limit switch is broken, check whether the 24V proximity switch lights up with a multimeter. Replace the thimble limit switch. (2) Clamping valve, with a hexagon key pressure thimble valve core can be moved, clean the pressure valve. (3) The limit rod of the thimble is broken, take out the limit rod by hand after stopping the machine, and replace the limit rod. The thimble switches short circuit, with a multimeter to check the thimble switch to ground 0 voltage, replace the thimble switch. Improper positioning of the electronic ruler. 13. Semi-automatic thimble out of control -- Handling method: The thimble plate is bad, check whether the line is normal, normal voltage DV24V. Repair thimble plate. (2) If the wire is broken, check the connection wire of switch comprehensively, the connection wire of I/O board. Check the wiring and rewire. (3) Check whether the mold is out of position. 14. Whether the piston rod seal ring of oil cylinder is damaged -- Treatment method: (1) The proportion is the linear difference, the opening and closing time position pressure-flow regulation is not good, check the oblique rise and fall in the parameters, adjust the oblique rise and fall in the parameters. (2) clamping machine hinge poor lubrication, check the Corinth column, two sliding feet, machine hinge lubrication, increase the lubrication, increase the number of oil. Mould clamping force is too large, check the clamping force when the mould is under force, reduce the clamping force according to the user's product condition. Check that the time and location are appropriate. Parallelity of head two plates, check parallelism of head two plates. Adjust the second plate, the head plate parallel error. (5) slow turn fast dies opening setting position is too small, too fast. Check whether the position of the slow die opening is appropriate and the slow die opening speed is too fast. Lengthen the position of slow opening die, reduce the speed of slow opening die. 15. Semi-automatic clamping action for two times -- Treatment method: (1) The clamping valve core has not been completely reset, check whether the next action is too continuous after the clamping action is completed.

Clamping failure of the vertical injection molding machine

1 Clamping failure of the vertical injection molding machine Wed Nov 18, 2020 4:12 am

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