To Define Ejector Pins with the Ejector Pin Designer
Use the Ejector Pin Designer to speed up the process of defining ejector pins. It takes fewer clicks to predefine ejector pins on reference models and to finally assemble ejector pin models and cuts to the mold base.
1. Create a new mold base assembly and assemble the plates, or open an existing mold base assembly.
2. Set up the cavity layout and assemble the cavity insert assemblies to the model.
3. Create the cavity insert assemble cutouts.
4. Make sure that all cavity insert assemblies are classified correctly. The Ejector Pin Designer only works on models that are classified as reference models.
5. Click > . The Ejector Pin Designer dialog box opens.
A simplified representation is activated that only contains the classified reference models. The Ejector Pin Designer dialog box contains the two tabs described below:
◦ Design—Contains functions for predefining and assembling ejector pins.
◦ Options—Contains filters and options to help you design the ejector pins.
During the initialization of the dialog the Reference Models list is populated. The number of entries depends on how many reference models have been assembled to the mold base.
6. In the Design tab click the Reference Model box, and select your active reference model. The active working model is the model in which you can define, modify, or delete ejector pins.
7. In the Placement Location area, manage your active placement location for the ejector pin head.
The Ejector Pin Designer supports up to four different placement planes on both sides of the mold base, the moving half, and the fix half.
To setup the active placement location select MH or FH. The list of valid placement planes is populated depending on the current mold base design.
The following plates are supported:
◦ 
Ejector Plate #1: Ejector Pin Head is placed to the first ejector pin plate.
◦ 
Ejector Plate #2: Ejector Pin Head is placed to the second ejector pin plate.
◦ 
Core Pin Plate: Ejector Pin Head is placed to core pin plate.
◦ Clamping Plate: Ejector Pin Head is placed to clamping plate.
8. Notice the ejector pin that appears in the Type Preselection area which specifies the shape of the preview that is displayed while placing a new ejector pin.
The following information is listed for the preselected component:
◦ Shape—Round or rectangular
◦ Size—Diameter or length multiplied by width
◦ Rotation Angle
◦ Unit system
◦ Supplier
◦ Instance Type
◦ Target Subassembly
9. Click
to preselect another ejector pin type. The
Ejector Pin Dialog Box opens. Select new ejector pin type and click
OK.
| Click > and set the configuration option EJP_DESIGNER_DEFAULT_COMPONENT. By default, what you set is assigned to the preselected component. A valid format for this EMX option is unit|supplier|instance_name, such as mm|meusburger|E1725_2_8_0_5_80 |
10. In the Ejector Pin Designer dialog box, click the Options tab to set snapping rules and collision control to support your waterline creation.
◦ Select or clear the check boxes under Snap Rules for support during your waterline creation process. The Ejector Pin Designer recognizes all point features in the reference model and helps you to define new ones based on their positions.
◦ Select the Grid check box and then set Width to a specified value. This sets the accuracy of the decimal digits.
◦ Set the Snap Tolerance. If the snap tolerance is higher than the grid width, EMX can snap to existing points.
11. From the Ejector Pin Designer dialog box on the Design tab under Ejector Pin Definition, you can create, modify, and delete predefinitions for ejector pins. As you create ejector pins, the ejector pins for the currently selected reference model appear in a list on the bottom of the dialog box. The steps for creating, modifying, and deleting ejector pins and for assembling predefined components of the ejector pins, are described below:
◦ To create an ejector pin, follow the steps below:
1. Click
to start defining a new ejector pin. The coordinates of your pointer position are visible with the origin on the reference model standard coordinate system. In the graphics window, the ejector pin cross section is previewed at the pointer position.
2. Click anywhere within the outline boundaries of the reference to define the intersecting point of the ejector pin with the reference model. The point feature and a layout curve are assembled to the plate. The layout curve represents the dimensions of the predefined ejector pin. The Ejector Pin dialog box opens.
3. Finish your ejector pin type selection. You can select different suppliers, types, and dimensions. Click
Preview to preview the layout curve.
4. Click OK to complete component predefinition and close the dialog box for the component or click Cancel to stop the definition process.
◦ To create an ejector pin on existing points follow the steps below:
1. Click
to add a new ejector pin on existing points.
2. Select a sketch point or datum points inside of the reference model. The Ejector Pin Designer dialog box opens.
3. Finish the type selection for your ejector pin. You can select different suppliers, types, and dimensions.
4. Click
Preview to preview the layout curve.
5. Click OK to complete component predefinition and close the dialog box for the component or click Cancel to stop the definition process.
| When creating ejector pins on existing points, you can define multiple ejector pins in one step, depending on the number of points defined in the sketch or the datum point feature. The position of the ejector pin is updated if sketched points are modified. |
◦ To modify an ejector pin follow the steps below:
1. Click
to activate the modify mode for existing ejector pins.
2. Place the pointer on one ejector pin until the color of the knot changes to red and then click the knot and move the pointer. The selected ejector pin follows the pointer within the plate.
3. Click again to place the selected ejector pin at the current position of the pointer. The ejector pin point is updated to the new position. Middle–click when you want to stop modifying.
4. Right–click one of the ejector pins that changed to red to open the Ejector Pin dialog box. In the Ejector Pin dialog box you can redefine the ejector pin type and dimension. Click OK to close the Ejector Pin dialog box.
◦ To delete a waterline, follow the steps below:
1. Click
and then place the pointer on the ejector pin to be removed. The ejector pin changes to red.
2. Click the ejector pin to remove it. The ejector pin, the component, and the ejector pin cut out are deleted from the mold base.
12. After you finish defining the ejector pins within the reference model, you can assemble all components including cut outs for all defined ejector pins in the current reference model. Click
Update Ejector Pins in 3D to assemble the ejector pins and the cut outs after defining ejector pins, and when applying modifications. If the ejector pin solid model is already in the assembly, the representing line in the table of all ejector pins is locked
. If a modification should be applied to the ejector pin definition, double-click the icon and set the line to +unlocked
.
Only unlocked ejector pins can be modified and reassembled with
Update Ejector Pins in 3D.
13. As ejector pins are created, they appear in the bottom of the Ejector Pin Designer dialog box. Review the bullets listed below for information on customizing your list of ejector pins:
◦ In the list, an ejector pin is represented with a name in the Instance column. Double-click the instance name to open the Ejector Pin dialog box where you can define the ejector pin and the associated ejector pin cut out.
◦ Directly change the position of the ejector pin by editing the cell values in the X and Y columns.
◦ Directly rotate the ejector pin can by editing the cell value in the
column.
◦ The trim behavior of one ejector pin is visualized in the
column. The green hook
represents trimming. Double–click to toggle this value directly within the table.
Ejector Pin Designer. The Ejector Pin Designer dialog box opens.