Runner Modeling

8/6/2019 Runner Modeling

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MPA 8.1Runner Modeling and Analysis


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Analysis Options & ToolsPart OnlySingle CavityMulti-CavityRunner Modeling

Part Only Single cavity Multi cavity(Family Mold)


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Tools Panel

Modeling Orient, locate, align and duplicate the part(s) in the mold.

Defaults Set user preferences for modeling the feed system (sprue, runners

and gates) and cooling circuits*.Mold Set the parting plane and specify the mold properties, including the mold boundary, number ofmold plates and mold material.

Runner Create the feed system automatically or manually. Now you can model hot as well as cold sprues, runners and gates.

Cooling Create the cooling circuit automatically or manually.Results Specify warpage constraints and molding window controls.


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OK/Apply/Cancel/Help Top of Menu


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Modeling Tools


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Multi-Cavity DuplicationMulti-Cavity Mold layoutGrid/RadialGrid Layout Draw (graphical display)

Cavity Spacing Row/Column major gives you more control on

the duplication of the model


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Multi-Cavity Family MoldSame analysis technology will be usedon all parts.Procedure changed:

To add additional (different) cavities to afamily mold use File -> Add


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Defaults Gate/Runner/Sprue

Cold / Hot Gate


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Defaults Modeling GridEasy access from the Default menuSpecify Grid origin and size.


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Mold Parting PlaneSet Default Parting Plane.Create multiple planes forrunner modeling aid.


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Mold PropertiesSpecify plate thickness and dimensions.2 or 3 plate mold.Specify Mold material.


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Use the injection cone, and parting plane for gate definition:

Positioning the gate & parting plane

Parting

Plane

XX


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Runner WizardAutomatic generation of sprue, runner andgates or just sprue.Choice of Layout: Automatic Block H Star

Specify properties of gates, runners andsprue from the wizard.Use intersection testing.


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Runner Layout

H Star


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Create GateManually set each gate's properties, andlocation in the mold.Select the injection location where the gate

will be connected to the part.


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Create RunnerManually set the runner type, start and endpoint coordinates, method of connectionbetween runner segments, and modelinggrid settings.Snap tools displayed when modeling.


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Create SprueManually set the drop pointcoordinates, the sprue properties,and location on the grid.


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Runner Import/ExportImport ASCII IGES (*.igs) ASCII UDM (*.udm) To import Moldflow (*.adv)

First import the *.adv file and save itas a *.sdy or *.udm file.

Moldflow (*.sdy)

Export ASCII IGES (*.igs)


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Edit PropertiesEdit the default type, shape, type and sizeof the selected entities.Chose similar entities from selection list.


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Runner Adviser AnalysisEstimates the best runner systemdimensions and provides a list ofthe optimizations for acceptance

or rejection.Select section from summarytable, program will highlight theentity selected.


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Runner Balance AnalysisAutomatically balances a multi-cavity feed system.Summary provides information

about original runnerdimensions and suggestedchanges.Select section from summary

table, program will highlight theentity selected.


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Summary Tabs


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MPA 8.1Workshop - Runner Modelling


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Workshop 2 plate mold

Submarine gateCircular runner

Fan gateTrapezium runner


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Workshop 3 plate mold


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Workflow1. Create injection location(s)2. Set Parting Plane3. Define Mold Properties (size & mold material)4. Define Defaults (Runner, gate & sprue properties)5. Create feed systems

a) Runner System Wizard

b) Manual


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Submarine gate, circular runner1. Save as another study file


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Submarine gate, circular runner2. Change mold type to Single Cavity

3. Place injection location and change coordinate values.


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Submarine gate, circular runner4. Set Mold Parting Plane

(MPA parting plane is not the same as actual moldparting surface)


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Submarine gate, circular runner5. Select Bottom to place the parting plane to the most

bottom point of the part

Parting plane


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Submarine gate, circular runner6. Change the size and mold material in Mold Properties


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Submarine gate, circular runner7. Define Gate Properties


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Submarine gate, circular runner8. Define Runner Properties


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Submarine gate, circular runner9. Define Sprue Properties


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Submarine gate, circular runner10. Using Runner Wizard to automatically create

a) Sprueb) Runner

c) Gate


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Submarine gate, circular runner11. Use mouse to drag yellow cross (sprue location) to

specify location.12. Specify absolute values

Use mouse to drag


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Submarine gate, circular runner13. Completed feed system


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Fan gate, trapezium runner1. Save as another study file


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Fan gate, trapezium runner2. Change mold type to Single Cavity

3. Place injection location and change coordinate values.


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4. Set Mold Parting Plane(MPA parting plane is not the same as actual moldparting surface)

Fan gate, trapezium runner


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5. Set Z depth of plane value to the value equivalentto the height of the injection location



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6. Change the size and mold material in Mold Properties



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7. Define Gate Properties



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8. Define Runner Properties



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9. Define Sprue Properties



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10. Using Runner Wizard to automatically createa) Sprueb) Gate

11. Runner are created manually.



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12. Use mouse to drag yellow cross (sprue location) tospecify location.

13. Specify absolute values

Use mouse to drag



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14. In order to create the runner manually, the locationof the sprue has to be checked.


Require coordinate values


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15. Select node at end of sprue.16. RMB > Properties17. Note down the coordinate values with respect to

X, Y & Z.



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18. Select Runner > Create Runner



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19. Select end of gate.20. Type in the End Point

Coordinate values



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21. Join the remaining runner to the sprue



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22. Completed feed system



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3 plate molds

Gate.

Primary RunnerSecondary Runner


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3 plate moldsWorkflow: Set injection location(s) Duplicate cavity

Set parting line at location of gate/runner transition . Set floating plate thickness length of drop . Set A plate to length of sprue . Create only the gate, and sprue automatically.

Double-click on the intersection point of the sprue and obtain the Zcoordinate.

Create secondary runner using coordinate values. Create primary runner by connecting secondary runner to sprue.


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3 plate mold1. Save as another study file


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3 plate mold2. Select an injection location with the following

coordinate values


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3 plate mold3. Change mold type to multi cavity

4. Duplicate the cavity. Modeling > Duplication


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3 plate mold5. Select Draw and highlight 2 vertical cells6. Change Spacing from and Row spacing


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3 plate mold7. Rotate the cavity.8. Select Modeling > Rotate9. Select one cavity and rotate 180 about Z. Check

on Use part center


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3 plate mold10. Rotate another cavity


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3 plate mold11. Set the parting plane so that it is 1 mm higher than

the injection cone position

Injection cone location


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12. Change the size and mold material in MoldProperties

13. Check on Floating Plate

3 plate mold


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3 plate mold14. Define Gate Properties


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3 plate mold15. Define Runner Properties


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3 plate mold16. Define Sprue Properties


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17. Using Runner Wizard to automatically createa) Sprueb) Gate

18. Runner are created manually.

3 plate mold


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3 plate mold19. Check Z coordinate value for sprue.20. RMB on end node of sprue & select Properties


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21. Select Runner > Create Runner

3 plate mold


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22. Select top node of gate23. Type in the coordinate values

3 plate mold


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24. Select top node on vertical runner25. Select end node of sprue

3 plate mold


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26. RMB on horizontal runner and select Properties27. Edit the values

3 plate mold


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28. Repeat the same procedure for the other side

3 plate mold

Ch ll i


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Challenge exercise

20 mm

10 mm

Step vertical runner


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Questions?Thank you for your attention

Documents

Runner Modeling