Additive Rapid Prototyping for Blow Molding Components
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Solution Overview
Problem
Current methods for producing components for stretch blow molding machines are expensive, difficult to customize, and inefficient, particularly when requiring complex geometries, functional surfaces, and resistance to aggressive cleaning agents, with limited use of additive rapid prototyping methods in this field.
Innovation Solution
The method involves using additive rapid prototyping techniques like 3D printing or laser sintering to produce components from metal, plastic, or ceramic materials, allowing for the integration of continuous material transitions and functional coatings, eliminating the need for separate parts and complex assembly, enabling direct production of optimized components with improved material properties and reduced production time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If standard machining methods (screwing, welding, casting, bonding) are used to produce components, then components can be manufactured with traditional processes, but production is expensive and time-consuming especially for small batches
Solution Approach 1:
The patent applies parameter changes by transitioning from traditional subtractive machining methods to additive rapid prototyping methods. This fundamental parameter change in the manufacturing process enables direct digital fabrication of components with complex geometries, eliminating the need for expensive tooling and assembly operations while significantly reducing production time for small batches and customized components.
2Ease of manufacture
If current processing methods (turning, milling, grinding) are used, then components can be produced with conventional manufacturing, but optimal design with undercuts and special radii for flow-optimized design is not possible
Solution Approach 1:
The patent employs parameter changes by adopting additive manufacturing technology that fundamentally alters the geometric constraints of component production. This enables the creation of undercuts, complex radii, and flow-optimized geometries that are impossible or extremely difficult to achieve with traditional turning, milling, and grinding operations, thereby achieving superior manufacturing precision for complex shapes.
3Manufacturing precision
If complex coating and finishing processing steps are applied to achieve functional surfaces, then surface requirements can be met, but production becomes more expensive and time-consuming
Solution Approach 1:
The patent applies preliminary action by incorporating surface finish requirements directly into the additive manufacturing process itself. Functional surfaces are created during the component fabrication process through controlled deposition parameters and post-processing techniques inherent to additive manufacturing, eliminating the need for separate, time-consuming coating and finishing operations that would otherwise be required to achieve the same surface quality.
4Productivity
If components are produced by casting with elaborate component mold construction, then components can be manufactured in batches, but delivery times and setup times are required
Solution Approach 1:
The patent applies parameter changes by replacing traditional casting processes with additive rapid prototyping technology. This fundamental process change eliminates the need for elaborate component mold construction, tooling fabrication, and setup procedures. Components can be produced directly from digital models, enabling rapid batch production without the lengthy lead times associated with traditional casting methods.
5Ease of manufacture
If conventional components require multiple parts with adhesives, mounting pieces, and crimp fits, then assembly is possible, but fatigue strength and permanent leak-tightness are adversely affected
Solution Approach 1:
The patent applies the merging principle by producing components as integrated, monolithic structures through additive manufacturing. This eliminates the need for multiple separate parts joined by adhesives, mounting pieces, or crimp fits. The resulting single-piece components have superior fatigue strength and guaranteed leak-tightness because there are no joints, interfaces, or assembly points where failures could occur.
6Productivity
If standardized components are produced in large batches, then economies of scale are achieved, but customization and continuous improvement are limited
Solution Approach 1:
The patent applies parameter changes by transitioning from standardized mass production to additive manufacturing, which fundamentally alters the production paradigm. This enables each component to be customized according to specific requirements while maintaining production efficiency. The digital nature of additive manufacturing allows for continuous improvement and design optimization without the constraints of standardized tooling and molds, achieving both high productivity and full adaptability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach results in faster, cheaper, and more maintainable components with enhanced functional properties, improved production efficiency, and reduced material waste, enabling the production of complex geometries and functional surfaces without the need for elaborate coating processes, while ensuring resistance to aggressive cleaning agents and food safety standards.
Implementation Method 1
produced completely or partly using an additive rapid prototyping method, such as by 3D printing or laser sintering
Implementation Method 2
produced completely or partly using an additive rapid prototyping method, such as by 3D printing or laser sintering
Data Source
AI summary
A method for producing a component for a blow molding module of a stretch blow molding machine which as a component to be produced includes at least one of a blow valve, a blow nozzle, a valve block, a stretching rod, a mold carrier, a shell mold one or more single- or multi-part mold inlay(s) with a container contour, and which entails that the component to be produced is completely or partly produced by use of an additive rapid prototyping method, for example by 3D printing or laser sintering, and is produced from one or more of metal, plastic materials, ceramic materials, or from a combination of metal, plastic materials and/or ceramic materials.