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Specification for installation and adjustment of plastic molds

update:04-03-2021
abstract:

1. Mold pre-inspection: Once the mold is installed with […]

1. Mold pre-inspection:
Once the mold is installed with a plastic mold, inspection should be carried out to find quality problems in time, and repair the mold to avoid disassembly after being installed on the machine. When the fixed template and the movable template of the mold are checked separately, pay attention to the direction marks to avoid closing the mold. Make a mistake.
2. Inclined guide mold device:
When installing the mold, the two people should closely cooperate and pay attention to safety. If there is a mold with a lateral parting organization, the slider should be installed in a horizontal position, that is, the movable block moves left and right.
3. Mould fastening:
After the mold positioning ring is installed in the positioning ring seat of the fixed template on the injection molding machine, close the mold at a very slow speed, make the movable template lightly press the mold, and then press the plate, which must be fitted with a pad It is necessary to install 4 pieces on the top and bottom of the compression plate. When the upper compression plate, it is necessary to pay attention to adjusting the height of the adjusting screw to the same height as the die foot, that is, the compression plate should be flat. If the pressing plate is inclined, the die foot of the mold cannot be pressed tightly. The side of the pressure plate should not be close to the mold to avoid friction and damage to the mold.


4. Correct the ejection distance of the ejector rod:
After the mold is fastened, start the mold slowly until the movable mold plate stops retreating. This is the position of the ejector rod should be adjusted to a gap of not less than 5 mm between the ejector plate on the mold and the bottom plate of the movable mold to avoid The mold is damaged, but the part can be ejected.
5. Adjustment of closed mold tightness:
In order to avoid overflow and ensure proper cavity venting, when adjusting the hydraulic injection plug-toggle clamping structure, it is mainly based on visual inspection and experience, that is, when the mold is closed, the toggle is fast and then slow, that is not very natural , And straighten it not too reluctantly, the tightness of the closed mold is just right. For molds that require mold temperature, the tightness of the closed mold should be adjusted after the mold temperature is increased.
6. Connecting energy cooling water:
After connecting the cooling water, check whether it is dredged or leaking.