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Professional Plastic Pipe Fitting Mould Manufacturer With 20 Years Of Experience - Spark Mould

Collapsible Core Mold

The collapsible core injection mold mechanism is a highly ingenious mold design that addresses the demolding challenges faced by plastic products with internal concave or undercuts. Simply put, it's a "shrinking mold core" whose internal mechanical structure allows the core to "fold" itself, reducing its outer diameter or profile, allowing it to be smoothly ejected from the product's internal undercuts.
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Dovetail Collapsible Core Injection Molding Mold Design
Dovetail Collapsible Core Injection Molding Mold Design
This a mold core that can dynamically change its shape—expanding to form perfect threads during injection and then contracting to release the finished nut effortlessly.
8 Cavities Collapsible Core Mold Design For Plastic Nut
8 Cavities Collapsible Core Mold Design For Plastic Nut
This a 8-cavity collapsible core mold. The collapsible core is a "shrinking mold core" that uses internal mechanical fit to allow the core to "fold" itself, thereby reducing its outer diameter or profile, allowing it to smoothly escape from the internal undercut of the product.
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