shallow side concave of plastic parts requires small core-pulling distance, yet when the molding area of side concave is large, a large core-pulling force is thereby needed, therefore, tilted lifter mechanism can be adopted for side parting and core-pulling. […]
a detail for designing tilted lifter mechanism need to be known, for inner side core-pulling, top of the tilted slide should be 0.05—0.1mm lower than the end plate if core, since during the protruding, […]
a suitable dip angle for designing a tilted lifter mechanism is very important, I think the pin’s dip angle B should be taken 5—25 degree ， […]
I have a tip for designing a tilted lifter mechanism, to endow the mechanism with restoration function, the length of circular bead for restoration should be adopted preferably larger under possible conditions, […]
in first-rate mold solution co, ltd, our designer often design an angle pin core-pulling mechanism, […]
The core should be set preferably in the moving or fixed mold vertical against the parting line so that the side core can be pulled out through mold opening or the pulling action.
Use preferably core-pulling mechanism wherein the angle pin is located in the fixed mold and the slide in the moving mold.
Wedge angle of the wedge block should be larger than the obliquity of angle pin, usually larger than 2—3 degrees; otherwise, the angle pin can not drive the slide.
Upon completion of core-pulling, the slide left in the chute should not be less than 2/3 of total length of slide.
Try not to make the projection of the ejector pin coincide with that of the active core on the parting line to prevent mutual interference of the slide and the ejector unit during restoration.