Movable Mold Element with Flow Channel for Particle Foam
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Solution Overview
Problem
Existing molds and processes for producing multi-component particle foam components are inefficient and lack reproducibility in creating high-quality products.
Innovation Solution
A molding tool and method that utilizes a multi-part mold with movable mold elements and controlled fluid introduction to process plastic particles with varying chemical and physical properties, enabling the production of multi-component particle foam components with precise control over expansion and bonding processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional molds and processes are used for producing multi-component particle foam components, then the basic production capability is maintained, but the production efficiency and reproducibility are insufficient
Solution Approach 1:
The mold is divided into multiple independent mold parts, each capable of being filled with different plastic particle materials. This segmentation allows simultaneous processing of multiple components with different properties, thereby improving production efficiency while maintaining consistent quality through standardized mold parts.
Solution Approach 2:
The invention introduces movable mold elements that can change position between different operational states. These dynamic elements enable flexible configuration of mold cavities for different production runs, improving both productivity through faster reconfiguration and reliability through precise positioning mechanisms.
2Adaptability or versatility
If multiple plastic particle materials with different properties are processed simultaneously, then multi-component particle foam components with diverse properties can be produced, but the process complexity increases
Solution Approach 1:
Different plastic particle materials are processed in separate mold parts or cavities, each optimized for specific material properties. This segmentation allows high adaptability to different materials while keeping the process for each material relatively simple and well-controlled.
Solution Approach 2:
The mold system is designed with universal features that can handle multiple plastic particle materials through standardized filling and processing mechanisms. The movable mold elements provide multi-functionality, allowing the same mold to process different material combinations, thereby reducing overall process complexity despite handling diverse materials.
3Manufacturing precision
If precise control over expansion and bonding processes is implemented, then high-quality multi-component particle foam components are produced, but the control system complexity increases
Solution Approach 1:
Different mold parts are equipped with localized control mechanisms tailored to the specific expansion and bonding requirements of each plastic particle material. This local quality approach enables precise control for each material type while avoiding the need for a single complex centralized control system.
Solution Approach 2:
The invention replaces complex mechanical control systems with field-based control mechanisms, such as thermal fields for expansion control and electromagnetic or chemical fields for bonding control. This substitution reduces mechanical complexity while maintaining or improving precision in controlling expansion and bonding processes.
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
Enables efficient and reproducible production of high-quality multi-component particle foam components by allowing for precise control over the expansion and bonding of plastic particles with different properties.
Implementation Method 1
The bonding of the plastic particles during processing to form the particle foam component is typically accompanied by a corresponding (further) expansion process of the plastic particles
Implementation Method 2
Both unexpanded and pre-expanded plastic particles are typically expandable, i.e. they can be (further) expanded in an expansion process, e.g. thermally induced by a temperature-controlled process fluid
Data Source
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AI summary
The invention relates to a mould (1) for processing expandable or expanded plastic particles for producing a multi-component particle foam component, said mould comprising: a mould cavity (7) delimited by mould walls; at least one mould element (9), which in particular is slide-like or slide-shaped, wherein the at least one mould element (9) is mounted so as to be movable between a first orientation and/or position and at least one further orientation and/or position in which it projects at least in sections into the mould cavity (7), and wherein the at least one mould element (9) is designed with, or comprises, a flow channel structure (11) having at least one flow channel (11.1) which extends inside the mould element (9) and through which a process fluid can flow.