High-Precision Telescopic Core Injection Mold

A high-precision telescopic core injection mold is an advanced mold design that incorporates movable, retractable, or telescopic cores to produce complex, high-accuracy plastic components with internal undercuts, deep cavities, or threaded structures.

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产品描述

High-Precision Telescopic Core Injection Mold

1. Introduction

A high-precision telescopic core injection mold is an advanced mold design that incorporates movable, retractable, or telescopic cores to produce complex, high-accuracy plastic components with internal undercuts, deep cavities, or threaded structures. This type of mold is commonly used in automotive parts, medical devices, electronic housings, and consumer products that require intricate internal geometries.

By utilizing telescopic core technology, these molds allow for automatic demolding without additional secondary processing, improving production efficiency, part accuracy, and durability.

2. Characteristics of High-Precision Telescopic Core Molds
- Complex Undercut and Deep Cavity FormationEnables molding of threaded, grooved, or multi-level structures.
- Automatic Core RetractionUses hydraulic, mechanical, or servo-driven mechanisms for smooth core movement.
- High Dimensional AccuracyEnsures tight tolerances for precision components.
- Durability and Wear ResistanceMade from high-strength tool steels (H13, S136, 1.2344) with heat treatment.
- Optimized Cooling SystemConformal cooling channels reduce cycle times and enhance part quality.
- Smooth Ejection and DemoldingPrevents deformation, ensuring flawless part release.
- Supports a Wide Range of MaterialsSuitable for engineering plastics like PC, PBT, POM, PA66, ABS, and reinforced composites.
3. Manufacturing Process of Telescopic Core Molds

1. Mold Design
- 3D CAD Modeling & SimulationAdvanced software (SolidWorks, UG, CATIA) ensures accurate part geometry.
- Mold Flow AnalysisMoldflow simulation prevents defects like warping, sink marks, and incomplete filling.
- Core Retraction Mechanism DesignOptions include:
- Hydraulic Cylinder-Driven Cores – For large, automated molds.
- Mechanical Cam & Slider Systems – Reliable and cost-effective.
- Servo-Controlled Cores – High precision with programmable motion.
2. Mold Fabrication
- High-Precision CNC MachiningEnsures tight tolerances (±0.01mm) for complex core structures.
- EDM (Electrical Discharge Machining)Used for fine details and intricate cavity designs.
- Heat Treatment & CoatingNitriding, PVD, or DLC coatings for extended mold lifespan.
3. Injection Molding Process
- Material SelectionCommon materials: PC, PA66+GF, POM, PBT, ABS, PP, PE.
- Optimized Injection ParametersPrecise temperature, pressure, and cooling cycle to ensure accuracy.
- Automated Core Retraction & EjectionEnsures smooth demolding without deformation.
4. Quality Control & Inspection
- Dimensional Accuracy Check – Ensures precise tolerances.
- Surface Finish Inspection – Verifies smooth surfaces for functional parts.
- Mechanical Testing – Checks for strength, flexibility, and wear resistance.
4. Applications of High-Precision Telescopic Core Molds
- Automotive Industry – Precision gears, threaded connectors, sensor housings.
- Medical Devices – Syringe barrels, catheter components, inhalers.
- Electronics & Consumer Goods – Threaded caps, camera lens housings, connector casings.
- Industrial & Mechanical Parts – Pipe fittings, valves, and fluid control components.
5. Conclusion

High-precision telescopic core injection molds offer superior accuracy, efficient demolding, and durability, making them ideal for complex plastic parts with deep cavities or undercuts. By integrating advanced retraction mechanisms, high-precision machining, and optimized cooling, these molds deliver consistent, high-quality production with reduced cycle times and material waste.Contact NeedMold,Email us:manager@needmold.com