Advantages of Collapsible Core Moldsvs. Unscrewing Tools g

Background

Jump Thread Unscrewing

Traditionally molders first looked to core a part utilizing a Jump Thread approach, but when not possible were required to design an Unscrewing mold.

RT Series Collapsible Cores

Roehr Tool Corporation initially developed an Unscrewing molddeveloped an Unscrewing mold alternative, through development of flexing steel collapsible cores.

Roehr manufactures this item for tooling component distributors throughout the

ldworld.

Collapsible Cores have become an accepted alternative f l t b f tfor a select number of repeat customers.

DT Collapsible Cores

Recently Roehr Tool expanded its product line with DT Collapsible Cores:with DT Collapsible Cores:

Fully mechanical operation

Center cooling channel provided

Serviceable while the mold is in the press

New Coring Options

With the advantages of the DT Collapsible Core, a growing number of companies have begun to utilize it rather than turning to Unscrewing toolscompanies have begun to utilize it, rather than turning to Unscrewing tools when the threads cannot be Jumped.

Jump Thread UnscrewingDT Collapsible Corep gp

DT Collapsible Core Advantages

DT Core molds are a profitable alternative to unscrewing molds:alternative to unscrewing molds:

Faster cycle time; actuation of gears and racks is eliminated and parts can be ejected warmer.

More compact mold design enables use of a smaller molding machine.

Serviceability in the press enables Se ceab ty t e p ess e ab esmaximum cavitation efficiency.

Simplified tool design results in a comparably priced DT Core Mold versus unscrewing.

Straight-forward mold design reduces maintenance expense.

Standard Tool Designs

Exclusive 1 to 4 Cavity ProtoBridgeTooling allows for various types of capsTooling allows for various types of caps to be prototyped within a standard kit.

Cores and Cavities are designed to allow removal while the tool is inallow removal while the tool is in the molding machine.

Pre-engineered production tool designs are also available for the moldare also available for the mold engineers convenience.

DT Collapsible Core Specifics

Four standard sized DT Cores correspond with industry standard cap diameters.

Collapse amount: 5 to 7% per side

Materials are A2 (1.2363) & D2 (1.2379) Hardened Steel

Open/Shut mold sequence: Open/Shut mold sequence:

Questions?

To learn if you can benefit from DT Core Technology send part geometry in theTechnology, send part geometry in the standard formats (SolidWorks, IGES, STEP, .dxf, .pdf) to: information@roehrtool.com.

An Application Engineer will review yourAn Application Engineer will review your product and will match your part to a solution

To generate a return on investment comparison between DT Collapsible Cores p pand Unscrewing Molds visit www.roehrtool.com/Math

View product animations at pwww.roehrtool.com/demo