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Question:

Trouble shooting of injection molding machine

What are the common problems and solving methods of injection molding machine? The more detailed, the better the month

Answer:

Non thimbleA, the actual location of the mold is not up to the actual setting;B, computer set no thimble or thimble times zero;C, the set of process parameters are incorrect;Detection status of D and thimble electronic ruler;Mechanical damage of E and ejector pin mechanism;F, the valve out of the direction of the valve is charged and spool work is normal.No needleA, computer process parameters;Detection status of B and electronic ruler;C, the working state of the directional valve.Abnormal movements of the meltA, the temperature of the melt tube is not set;B, the process parameters are unreasonable;Detection status of C and electronic ruler;D, the working state of the directional valve;E, melt into the cylinder with hard objects, stuck screw;Behind F, the barrel does not lead to water transport water, feeding inlet temperature is too high;G, glue back pressure is too large, check back pressure valve;H, adhesive motor or transmission shaft failure;I, hopper no material;The ejection motion is abnormalDetection status of a and electronic ruler;B, the working state of the directional valve;C, speed, pressure, position and time setting of process parameters;D, melt tube or nozzle temperature is not set;E, foreign body stuck in the melt tube;F, nozzle blocked;The G, the firing point and the stop switch do not work.Semi automatic and fully automatic working state is out of orderThe first observation is the problem in which a working condition, and then checked for specific actions, full automatic working condition but also to check the electric eye or time setting.
Common faults and elimination methods of injection molding machineNon locking modeA, close the front and rear door safely;B and check whether the safety threshold switch works properly;C, check the thimble recession switch;D, check mode lock electronic ruler and die stop switch;E, check mould parameter, speed, pressure and position setting is correct;F check whether the coil of the mould valve is live or not and whether the spool is working properly;G, the mold thickness adjustment or switch mode switch open, in the automatic state can not die;H, if there is a hydraulic safety lock, check whether it is normal.Open moldA and check the test status of the electronic ruler;B check whether the coil of the mould valve is live or not and whether the spool is working properly;C, if the high pressure mode locking down time is too long, because the metal structure related to the elastic deformation caused not opening, approach: a) to improve the opening speed, pressure, pressure reducing opening time, b) in general can be opened;D, if there are core pulling, twisting and other operations in the opening die, the working state of the lock die is not normal, so it is necessary to check whether the start and stop signals of these actions are normal.Die adjustmentA, mode adjustment counting switch fault;B and the original position change of the mould (in this case only one way adjustment)C, regulating valve coil is charged, and spool work is normal;D, the working state of the regulating motor;E, the die nut dies.

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