D-M-E — Taking lifter systems to the next level

VectorForm Lifter Advantages
30'+ Angle (R)C Half the stroke for the same undercut
Simple plate machining
Easy installation
May be ganged
(R)C Mutiple systems may be °8ganged
to lift a large lifter core
(R)C A single system can lift multiple lifter core
Accelerate or decelerate the motion of the lifter core relative to the ejector plate
Cooling may be added Design flexibility is improved
VectorForm Slide Bases
VectorForm Lifter Systems offer three types of slide bases to meet the needs of your applications.
The Standard Slide Base(SB) is the most flexible and the most economical slide base. The Standard Slide Base can be custom machined by the mold builder to meet specialized application requirements. The Standard Slide Base is also the most robust slide base with respect to loads and forces.
The Joint Slide Base(JB) permits the lifter core assembly to be retained with a single pin.
The Universal Slide Base(UB) is similar to the Joint Slide Base, although the single pin is replaced by a universal joint which offers greater flexibility than the Joint Slide Base (JB) while still requiring only one screw to retain the lifter core assembly.
Design Guidelines
1. General Installation
It is recommended that the VectorForm Lifter System be installed as shown above.
For each given VectorForm set, all components MUSTbe of the same size. However, separate sets of different sizes may be installed in the same mold.
Actuation of VectorForm Lifter Systems can be accelerated or decelerated by an inclined sliding surface on the ejector plate and ejector retainer plate.
2. Angles
The VectorForm Lifter System may be used with angles ranging from 5°,(minimum) to 30°,
(maximum Deep undercuts in the molded part can be obtained by using a larger angle in the lifter core and by increasing the ejector plate stroke.
3. Lifter Core Guidance The lifter core must have sufficient guidance in the tool. For multiple lifter cores installed in tandem in the tool, additional guidance in the core inserts is recommended. If resistance in actuation is great, an additional Guide Plate may be placed directly below the core insert.
4. Guided Ejection Guided ejection is recommended for all designs.
5. Fit and Finish Standard component dimensions and Rockwell hardness are provided in the component specifications section of this brochure. Should the standard components need to be modified, additional performance can be obtained by treating after finish machining (TiN coating, flash-chrome, etc.). Component installations can be fitted to suit. Ensure a loose fit on the Holder Bushing and Guide Plate installation. Ensure a precise fit between the lifter core and the Guide Plate. The Holder Bushing will automatically align prior to bolting the bushing to the clamp plate. Lubrication is not generally required nor recommended. If lubrication is used, it should be low-viscosity.
6. Locking Angles/Component Back-Up Locking angles may be designed to provide a locking surface to counter against molding pressure. A block construction using a square lifter core can also allow the resin pressure to be backed up by the core insert. If the axial load acting on the lifter core exceeds the limit allowed for the slide base pin (used in JB and UB Slide Bases), use a Standard (SB) Slide Base and back the lifter core on the slide by machining a ledge that is perpendicular to the axis of the lifter core. The lifter core must then seat firmly against the angled face of the Slide Base.
7. Non-Standard Shapes/Materials Lifter core blocks may be machined to any desired shape and size, provided the chosen number and size of the VectorForm Lifter System core standard components will support the lifter core blocks. Lifter core blocks are to be supplied by the moldmaker.