Specification For Installation And Adjustment Of Plastic Injection Molds
Plastic Injection Mold Pre-inspection
Before the plastic injection mold is processed and installed on the injection molding machine, it should be inspected in order to find quality problems in time, and the injection mold can be repaired to avoid removal after the machine is installed.
When the fixed mold and the movable mold of the plastic injection mold are inspected separately, pay attention to the direction mark. To avoid making mistakes when closing the injection mold.
Installation of oblique guide mode
When processing plastic injection molds, the two should closely cooperate to pay attention to safety. If there is a plastic injection mold processing of the lateral parting mechanism, the slider should be installed in a horizontal position, that is, the movable block moves left and right.
After the injection mold locating ring is inserted into the plastic shell for injection molding, the positioning ring seat of the fixed template is closed at a very slow speed. The plastic shell injection molding process causes the moving template to gently press the injection mold, and then the compression plate is pressed to press the plate.
The washer must be installed on the top, and the compression plate must be installed with four pieces each. When the compression plate is mounted, the plastic shell injection molding process must pay attention to adjust the height of the adjustment screw to the same height as the molded foot, that is, the compression plate should be flat.
If the pressure plate is inclined, the molded foot cannot be pressed tightly. The side of the compression plate of plastic shell injection molding cannot be close to the injection mold to avoid friction damage to the plastic injection mold.
Correct the ejection molding distance of the top rod
After the plastic casing is injection-molded and fastened, slowly open the injection mold until the moving template stops and retreats. This is the position of the ejector rod should be adjusted so that there is not less than 5 between the ejector plate on the plastic shell injection-molding and the bottom of the movable mold.
Millimeter gap to prevent damage to the plastic shell injection molding process, and can eject the parts.
Adjustment of the tightness of closed mold:
In order to prevent overflow, and ensure proper venting of the cavity, the plastic shell is sprayed when adjusting the hydraulic injection plug-toggle clamping mechanism. The plastic shell is sprayed mainly based on visual inspection and experience.
That is, it is not very natural, and it is not too reluctant to straighten, the tightness of the closed mold is just right. Plastic shell spraying for molds that require mold temperature, the injection mold tightness should be closed after spraying the plastic shell to raise the mold temperature.
Connect the cooling water
After the plastic shell is sprayed with cooling water, check whether it is smooth or leaking.