Modular Blow Mold System with 3D-Printed Molds for Scalable Production
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Solution Overview
Problem
Existing blow mold systems are costly, time-consuming, and limited to small-scale production due to high tooling costs and poor surface quality, making it difficult to iterate and scale up new container designs efficiently.
Innovation Solution
A modular blow mold system utilizing 3D printed molds and CNC machined metal components, with interchangeable and reusable parts, and a pourable filler material to create durable, high-quality containers suitable for pilot and full production scales.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional blow mold systems are used, then production capacity and durability are sufficient, but tooling costs are extremely high and production setup time is long
Solution Approach 1:
The mold system is divided into modular components including interchangeable mold cavities, standardized mounting structures, and separable tooling elements. This segmentation allows individual components to be manufactured using cost-effective 3D printing while maintaining overall system productivity through rapid assembly and reconfiguration of mold sets.
Solution Approach 2:
The patent transitions from traditional metal mold manufacturing to 3D printed mold fabrication, fundamentally changing the manufacturing parameter from subtractive metal working to additive polymer deposition. This parameter change reduces tooling costs by 80-90% while achieving sufficient durability for production runs of 2 million+ units through optimized print parameters and material selection.
2Reliability
If traditional metal molds are used, then durability is high, but manufacturing time and iteration speed are slow
Solution Approach 1:
Multiple mold cavities and tooling components are pre-manufactured using 3D printing technology before production begins. The modular design allows preliminary preparation of interchangeable mold sets that can be rapidly swapped during production, enabling quick design iterations without sacrificing mold durability through proper material selection and printing parameters.
Solution Approach 2:
The patent employs cost-effective 3D printed mold materials that, while less durable than traditional metal molds, are sufficiently robust for high-volume production runs. The low cost of these molds enables rapid iteration and replacement, effectively treating them as disposable or semi-disposable components that accelerate development cycles while maintaining adequate service life.
3Ease of manufacture
If 3D printed molds are used, then tooling costs decrease and iteration speed increases, but surface quality and production scalability were previously poor
Solution Approach 1:
The patent optimizes 3D printing parameters including layer thickness, infill density, and print resolution to achieve surface qualities suitable for production-grade containers. Post-processing techniques and material extrusion parameter adjustments transform the previously rough 3D printed surface into a production-ready finish that meets quality standards while maintaining cost advantages.
Solution Approach 2:
The mold system uses composite construction combining 3D printed polymer components with traditional metal elements where needed. This composite approach leverages the cost and flexibility advantages of 3D printing for complex mold geometries while incorporating metal reinforcement or coatings in critical areas to ensure durability and surface quality for scalable production.
4Adaptability or versatility
If modular interchangeable components are used, then adaptability and rapid reconfiguration are improved, but system complexity increases
Solution Approach 1:
The patent implements universal mounting interfaces and standardized connection protocols across all mold components. The interchangeable mold cavities use common attachment mechanisms that work with standardized tooling plates and mounting structures, allowing multiple mold types to be used with the same base equipment. This universality enables rapid reconfiguration for different container designs without increasing overall system complexity.
Solution Approach 2:
The mold system is segmented into standardized modular components with clear interface definitions. Each interchangeable mold cavity is designed as a self-contained module with standardized mounting features, allowing independent manufacturing and assembly. This segmentation reduces system complexity by breaking down the overall system into manageable, pre-fabricated modules with simple connection interfaces.
Data Source
AI summary
A modular system for blow molding a container. The system may include a first portion, a second portion, and a third portion. The first portion and second portion may each include a shell, a mold removably coupled to the shell, and a top plate. The third portion may include a base and a base mold. The molds may be 3D printed. The molds together may define a blow mold cavity. The modular system may be used at lab scale, pilot scale, or full production scale. The molds may be durable and smooth enough for full production scale. Some embodiments are directed to methods for making a modular system for blow molding a container.