mold actions collapsible cores dt series The DT Series Collapsible Cores offer a more compact design and simplified mold approach over other tool designs. Available in four standard sizes and also as customs, DT Series Collapsible Cores eliminate the need for complex unscrewing mechanisms as well as providing solutions for unmoldable internal undercut features such as o-ring grooves, slots, and snap fit details. 1 2 Mold Closed Initial Opening Center Pin Center Pin Quick Lock Plate Quick Lock Plate 3 4 Undercut Release Part Ejects Ejection Stroke Ejection Stroke Collapse Stroke Collapse Stroke C-20 US Patent No. 8,033,810 Other patents pending

collapsible cores dt series Dove Tail Center Pin Collapsing Segments Typical thread or undercut details to be released by core Collapsing Segments m A-2 h 54-57 HRC • Designed to mechanically collapse when the center pin is withdrawn. • The fit between the segments is controlled to permit flash-free molding. Carrier Assembly Center Pin m D-2 h 58-63 HRC • Serves to expand the segments of the core to their molding position • The pin may be flush to the core face. Carrier Assembly m D-2 h 58-62 HRC • Mounts DT Core assembly to the mold carrier plate. • Provides guided and anti-rotational segment...

mold actions collapsible cores dt series BH C L 120˚ (Typ.) BC L SL SL S BH S Stroke 10˚ D B D B Stroke BD BD SD ML T (3) CD CT 60˚ grinding center Flats for provided on both ends. (Grind to suit.) in-press servicing BC SD ML T (3) CT 60˚ grinding center provided on both ends. (Grind to suit.) CAD insertion point Note: All dimensions and tolerances are in millimeters. catalog number d Maximum Outer Diameter b Minimum Inner Diameter +3°/Side ml Maximum Molding Length c Maximum Collapse cd Carrier Diameter +0.00 - 0.05 ct l sl Carrier Assembly Thickness ± 0.05 Core Length +0.1 - 0.0 sd Shaft Length...

COLLAPSIBLE CORES Side Action Cavity Side Boss Detail Seal Ring