In injection mold terminology, what does "angled lifter cutting into plastic" mean?

In injection mold terminology, what does "angled lifter cutting into plastic" mean?

"Angled lifter cutting into plastic" refers to a situation where the angled ejector (or lifter) comes into contact with or cuts into the plastic part during the ejection process. This typically happens when the lifter retracts at an angle and there is insufficient clearance or improper design between the lifter and the molded part.This issue can cause damage to the part, such as scratches, deformation, or even material tearing, especially if the plastic has not fully cooled or if the lifter surface is not properly polished or designed.It is a common concern in mold design when dealing with undercuts or complex geometries that require angled lifters for proper demolding.

This can cause direct interference between the angled lifter and the slope.

Or it may cause slight interference during retraction.

If this issue is not detected before mold opening, it will manifest as "cutting into plastic" (lifter marking or material damage).

Solution: Adjust the direction of the angled lifter, and provide sufficient clearance by removing material to eliminate interference.

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