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Spring-Pins |
| Cut-Off Die |
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A spring-pin can eject a sheet-metal part after cut-off. In operation,
this example shows the right spring-pin pushing the sheet metal away from the bottom of
the stripper. This can prevent the sheet metal from being held against the stripper by
stamping-fluid surface tension . |
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| Notch Punches |
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Spring-pins can prevent slug pulling. In operation, this example shows
the spring-pins pushing the slugs away from the ends of the punches. This can prevent the
slugs from being pulled upward out of the matrix when the die opens. The spring-pins eject
the slugs by overcoming the stamping-fluid surface tension which can cause the slugs to
adhere to the ends of the punches. |
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| Switch Delay |
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A spring-pin can delay the actuation of an electrical switch. In
operation, this example shows the spring-pin releasing the switch after the mold has been
opened. The rod remains in contact with the switch and applies pressure to it when the
mold is partially or completely closed. The switch can be part of an automated system (not
shown) which waits for the mold to completely open before attempting to remove the molded
part from the mold. |
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