Injection molding machine shut down for a long time

First, injection molding machine and mold protection

Before shutting down the injection molding machine, the mold should be opened to a distance of 5-10mm, so that the clamping machine hinge (brake arm) mechanism is in a semi-stretch state, so that the injection molding machine hinge mechanism (bend arm) is in an unforced stop State, better protection of mold and locking mechanism.

Second, the barrel cleaning

Before the machine shuts down, the plastic in the barrel should be cleaned and one of the plastics of PP, PS and PE should be used to clean the original plastic left in the barrel. After cleaning, loosen the screw stroke to the maximum stroke. This will prevent the part of the screw head from being burned out when the power is turned on at the next time.

1, if the plastic used is HB ordinary transparent plastic, intrinsic plastic, you can not clean, directly inside the barrel of the plastic air injection can be completed.

2. If the plastic used is colored, VO fire-rated plastics, corrosive plastics, and plastics filled with glass fibers must be cleaned with one of PP, PS, and PE. After the work to be cleaned is finished, the temperature of the feed pipe can be closed directly.

Third, the mold, barrel cooler, hydraulic oil cooler drainage

First, turn off the cooling tower, the water tower pump, the chiller equipment, and the power supply of the mold temperature controller. Then do the following four points of drain protection.

1. Close the water inlet and outlet valves of the hydraulic oil cooler of the injection molding machine, remove the inlet and outlet pipe joints, and use the air gun of the air compressor to blow out the residual moisture inside the cooler (drain it out) to avoid rusting inside the water ring. Oxidation.

2. Close the water inlet and outlet valves of the cooling tube (tube) cooling water ring, remove the inlet and outlet pipe joints, and use the air gun of the air compressor to blow out the residual water inside the cooling water ring (drain it out) to avoid the water ring Internal rust or oxidation.

3. Close the inlet/outlet valve of the mold (male/matrix), remove the inlet/outlet pipe connector, and use the air gun of the air compressor to blow all the residual moisture inside the mold's water delivery system (drain it out) to avoid the mold The core of the rust.

4. Finally turn off the power to the air compressor equipment and release the residual air pressure.

Fourth, injection molding machine electrical protection

Before the holiday, please confirm whether the power switch of each injection molding machine has been disconnected, whether the doors and windows are closed, the workshop should also take measures to prevent rat biting, and waterproof measures shall be taken in the electric box. The injection molding machine control box closes well to prevent the mouse from entering the inside and damaging the host computer.