Reactionary forces and bending moments within conventional lifter core rods require smaller rod angles,which can increase mold die height and foot print.A new approach to designing lifter cores utilizes a second guide rod that is parallel to the lifter rod.The resulting parallelogram results in the elimination of the bending moment seen in conventional single-rod lifter configurations.This approach allows for a greater lifter angle,reducing the necessary die height and mold footprint.
展开▼
