Analysis and treatment of common faults of equipment

Large and small failures will occur when the injection molding machine is used for a long time. Don’t panic in the face of such failures, and actively find solutions to the problems, so as to reduce errors in maintenance. Secondly, pay attention to some ways and methods in use, so as to reduce the phenomenon of equipment failures, Now let’s learn in detail how to solve the common faults of injection molding machine.

Fault 1: high noise during mold opening of injection molding machine and troubleshooting

① Poor proportional linearity, poor adjustment of opening and closing time and position, check the oblique rise and fall of the amplification plate, adjust the oblique rise and fall of the amplification plate, and adjust the time appropriately.

② The lubrication of die locking machine hinge is poor. Check the lubrication of coring column, second plate sliding foot and machine hinge, and increase the lubrication.

③ If the mold locking force is too large, check the mold locking force when the mold is stressed, and reduce the mold locking force according to the user’s product.

④ Check the parallelism of the head plate and the second plate for the parallelism deviation of the head plate and the second plate. Adjust the parallel error of the second plate and the head plate.

⑤ Slow rotation, fast mold opening position is too small and speed is too fast. Check whether the position of slow mold opening to fast mold opening is appropriate and whether the slow mold opening speed is too fast. Lengthen the slow mold opening position and reduce the slow mold opening speed.

Fault 2: Troubleshooting of thimble out of control during semi-automatic injection molding machine

① The thimble board is broken. Check whether the circuit is normal. The normal voltage is dv24v. Repair the thimble board.

② If the line is disconnected, comprehensively check the switch connecting line and the connecting line on the I / O board. Check the wiring and reconnect it.

Fault 3: Troubleshooting of no thimble action of injection molding machine

Treatment method: ① if the thimble limit switch is broken, check the DC24V line with a multimeter and replace the thimble limit switch.

② Jam the valve, press the ejector pin with a hexagonal key to check whether the valve core is movable, and clean the pressure valve

③ The thimble limit rod is broken. After shutdown, take out the limit rod manually and replace the limit rod.

④ The thimble switch is short circuited. Check the ground 0 voltage of the thimble switch with a multimeter and replace the thimble switch.

Fault 4: manual mold opening termination, semi-automatic mold opening termination failure treatment

Treatment method: ① the mold opening valve leaks. After manually hitting the shooting table, observe that the second plate retreats quickly, and replace the mold opening valve.

② The ramp up and down of the amplification plate is not adjusted properly. Check that the amplification slope time is long, and readjust the ramp time of the amplification plate.

The troubleshooting methods are basically explained here. If you encounter similar problems in the article, you can try to operate according to the above methods, which will bring you unexpected results. Thank you for your attention and support.