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Vertical injection molding machine clamping part fault solution

  • Source:Dong Duan Tai Fu Machinery Co., LTD. Update time:2016-08-13
  • (a) : no clamping processing methods:
    1) : check the safety door switch, and repair.
    2) : check all the electricity in 24 v5a power, in insurance and power supply box.
    3) : check whether the valve core is stuck, clean the valve core.
    4) : to check whether there is output I/O board, the electromagnetic valve is electrically charged.
    5) : check whether the hydraulic safety switch is pressing, mechanical rod baffle lock is on.
    (2) : mold opening and closing machine ground ring processing methods:
    1) : to check the oil pipe is disconnected, if so, must be reset well tubing.
    2) : small amount of lubricating oil and increase the amount of lubricating oil, suggested 50 mould preview a to add the lubricating oil or use the manual.
    3) the clamping force is big, check whether the mold need large clamping force, clamping force.
    4) : current amplification board, check whether the current parameters is in line with the acceptance criteria, to adjust the current value.
    5) : parallel out-of-tolerance, head of junior were examined with a dial indicator parallelism is greater than the acceptance criteria; The parallelism.
    (3) : wait a few seconds to open mold processing methods:
    1) : start slowly and check whether the screw damping is too large, the small screws damping hole.
    2) : damping screw in the middle hole is too big, check whether Y damping hole screw is too big, in the center hole of thin damping.
    (4) : the lock mode the crawling processing methods:
    1) : junior guideway and elder brother Lin Zhu wear big, check the junior Lin Zhu guideway and the elder brother, to replace copper set of second board, elder brother Lin Zhu, filling lubricating oil.
    2) : the lock mode and improper pressure adjustment speed, set the flow rate of 20, 99 when clamping pressure junior should not crawl, adjusting flow proportional valve hole, or pilot valve hole, adjust proportional valve linear current value.
    3) : there is air in the pipeline and oil cylinder, exhaust.
    (5) : we can't start processing method: open mould
    1) : increases the lock mode speed, pressure flow is too small not good, check the lock mode speed, pressure whether appropriate, increase the lock die pressure, speed.
    2) : clamping electronic scale zero change, check whether clamping straighten machine ground after termination at zero, readjust the electronic scale to zero.
    3) : check whether the hinge.
    (6) : in the production of automatic tuning mode will be more and more tight or loose processing methods:
    1) : the variable inside the solenoid valve leakage, check for the "O" type solenoid valve, replace solenoid valve or whether the electromagnetic valve does not work with 24 v battery.
    2) : manual activity whether there are other action, and the valve is stuck.
    (7) : after clamping the works of other actions, automatic drive slowly die processing methods:
    1) : oil leaking plate, inspect or replace express mode locking valve, replace the oil plate.
    2) : open valve leakage, to start the pump and clamping end, according to shoot or shoot glue action, whether junior backwards, replace the cavity oil valve. Normal to the lock mode.
    (8) : only when clamping mould action processing methods:
    : 1) the wrong line, check for 24 VDC to the valve, the check circuit and wiring.
    2) : the wrong card valve or valve core, check whether the valve core is wrong, or congestion, reinstall valve core or cleaning. Under normal circumstances the lock mode movement is motionless.
    (9) : clamping breakdown processing methods:
    1) : A, B improper adjustment, set 20 system flow, pressure, 99 observation clamping
    Whether the crawling, to adjust or change valve.
    2) : there is air in oil, oil in the presence of air, check the oil in the presence of air bubbles, needs
    3) : enlarge plate oblique rise fall improper adjustment, observe the ammeter is proportional to the current value and whether changes in or with speed, adjust the amplifier board.
    Can't afford to (10) : clamping high pressure, beyond the trip processing methods:
    : 1) limit switch beyond limit, check whether the variable right, adjust the appropriate mold thickness. Check whether the motor is normal.
    2) : hydraulic limit over schedule, appropriate electronic foot stroke position, check whether the variable appropriate, the appropriate mode forward.
    (11) : manual have mould is terminated, semi-automatic no cavity end processing method:
    1) : open valve leakage, manual shot behind the action, observe whether junior is backwards, replace the mould opening valve.
    2) : check the electronic scale biggest stroke and pressure flow.
    (12) : the plunger motion processing methods:
    1) : thimble limit switch bad, use multimeter check lights on 24 v close switch. Replace the thimble limit switch.
    2) : valve, use hex key press plunger valve core can move, clean the pressure valve
    3) : thimble limit rod break, after the stop out limit lever with the hand, change the limit lever.
    4) : plunger switch short circuit, using a multimeter to check thimble, switch to ground zero voltage change of plunger switch.
    5) : electronic feet position Settings.
    (13) : when semi-automatic thimble control processing methods:
    1) : bad thimble board, check whether the circuit is normal, normal voltage DV24V. Maintenance thimble plate.
    2) : line, comprehensive check switch cables, cables on the I/O board. Check the circuit, wiring again.
    3) : look for walking a mould.
    4) : whether the oil cylinder piston rod sealing ring damage.
    (14) automatic thimble is out of control processing methods:
    : 1) the linear between, the process pressure flow control bad time position, check the parameters in the oblique rise fall, adjust the parameters of the oblique rise fall.
    2) : poor lubrication clamping machine hinge, check brother Lin Zhu, junior feet slip, machine hinge lubrication situation, increasing lubrication, increase the number of preview.
    3) : the mould clamping force is too large, check the force when the mould clamping force, according to the condition of the user product reduce clamping force. Check whether time position suitable.
    4) : the head junior parallelism deviation, check head plate junior parallelism. Adjust the junior, head plate parallel error.
    5) : slow turn fast mould setting position is too small, too fast. Check the slow mould rapid mould proper position, slowly open mold speed is too fast. Extended slowly open mould position, reduce the speed of the slow open mould.
    (15) : semi-automatic have two clamping action processing methods:
    1) : clamping valve core is not completely reset, check the clamping action is completed next action whether continuity is too strong.
    2) : increases the delay time of an action.

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