Retaining a Slide,Cut-Off Die,Embossing Die

Retaining a Slide
slk_retslide.gif (4973 bytes)
A slide-lock in an injection mold can hold a slide in its outward position while the mold is open. This insures that the slide will be in position to engage the angle-pin when the mold is closed. In operation, the angle-pin moves the slide away from the molded part when the mold opens. The angle-pin disengages the slide when the slide-lock is in the capture-range (K=0.02“~0.03”). The slide-lock holds the slide in position while the mold is open. When the mold closes, the angle-pin overrides the slide-lock and moves the slide left to close the molding cavity.

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Cut-Off Die
slk_cutoff.gif (3659 bytes)
A slide-lock can prevent a sheet-metal part from sticking to the underside of the stripper after the part is cut off. In operation, this example shows that the slide-lock plunger being compressed between the sheet metal and the stripper during the down-stroke. On the up-stroke, the plunger pushes the sheet-metal downward preventing it from being held against the stripper by stamping-fluid surface tension.

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Embossing Die
slk_embosdie.gif (2842 bytes) Slide-locks can lift a sheet-metal part after embossing. In operation, this example shows that the slide-lock plungers are compressed between the sheet metal and the die section during the down-stroke. On the up-stroke, the plungers lift the sheet metal out of the die section.

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Forming Die
slk_formdie.gif (3442 bytes) Slide-locks can eject a sheet-metal part after forming. In operation, the slide-lock plungers are compressed between the sheet metal and the pressure pad during the down-stroke. On the up-stroke, the plungers push the sheet-metal part off the forming punch. For best results, the slide-locks can be located near the formed edges as shown (near the outside edges of the forming punch).

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Notching Die
slk_notchdie.gif (3261 bytes) Slide-locks in a progressive die can lift a sheet-metal strip after hole punching or edge notching. In operation, the slide-lock plungers are compressed between the sheet metal and the die section during the down-stroke. On the up-stroke, the plungers push the sheet-metal away from the matrix. If any burs extend downward from the sheet-metal into the matrix, lifting the part upward prevents the burs from interfering with the sheet-metal progression through the progressive die.

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Slide-Lock Pressure
slk_pressure.gif (4087 bytes) The locking force of a slide-lock depends on the compression of the plunger. Greater plunger compression provides greater latching force. This example shows a SLK-25A providing 25 pound of locking force when the latch compresses the plunger all-the-way. The same slide lock provides only 12.5 pounds of locking force when the latch slides higher above the holder and compresses the plunger only half-way.

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Punching Die
slk_punchdie.gif (2984 bytes) Slide-locks can prevent a sheet-metal part from sticking to the underside of the stripper after punching. In operation, the slide-lock plungers are compressed between the sheet metal and the stripper during the down-stroke. On the up-stroke, the plungers push the sheet-metal downward away from the stripper preventing it from being held against the stripper by stamping-fluid surface tension and gravity.

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