Integrated Media Supply Device for Plastic Preform Blowing
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Solution Overview
Problem
Existing systems for forming plastic preforms into containers require multiple components, leading to high space and weight requirements, increased costs, and deviations in pressure regulation, affecting container quality.
Innovation Solution
A device with a media supply system that includes a pressure inlet and multiple outlets for secondary pressure, integrated with a control device and distribution system, allowing for efficient media distribution and pressure control, reducing the need for multiple components and improving adaptability to machine environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate components are used for pressure control and media distribution, then each component can be optimized for its specific function, but the overall system requires more space, has higher weight, and increases device complexity
Solution Approach 1:
The patent combines multiple separate components (pressure control device, distribution device, vent valve, pilot valve) into a single integrated media supply device. The housing contains all these functional elements as integrated components, eliminating the need for multiple separate units while maintaining their individual functions. This merging reduces the overall number of components, simplifies the system architecture, and decreases installation space requirements.
Solution Approach 2:
The integrated media supply device performs multiple functions simultaneously: it controls pressure through the pressure control device, distributes media through multiple outlets, provides venting capability, and supports pilot valve operation. This multi-functional design allows a single device to replace what would traditionally require several separate components, thereby reducing device complexity while maintaining comprehensive functionality.
2Ease of repair
If multiple separate components are used for pressure control and media distribution, then each component can be independently maintained, but the overall system has higher weight and requires more installation space
Solution Approach 1:
The patent integrates multiple functional components into a single housing structure, creating one unified media supply device. This consolidation reduces the total weight compared to having multiple separate components, as the housing and support structures are shared across all functions. The integrated design eliminates redundant mounting hardware and connection elements that would add weight in a multi-component system.
3Manufacturing precision
If traditional pressure regulators are used, then pressure control is achieved, but flow capacity cannot be adequately adapted to varying air requirements, leading to deviations in pressure regulation
Solution Approach 1:
The patent incorporates a pilot valve that can be controlled to dynamically adjust the flow capacity of the pressure control device. This allows the system to adapt to varying air requirements in real-time, maintaining accurate pressure regulation across different operating conditions. The pilot valve provides a control mechanism that modulates the main flow path, enabling the system to respond dynamically to changing demands while preserving pressure control precision.
4Adaptability or versatility
If more components are added to the system, then more functions can be provided, but the moments during deceleration of rotary movement increase due to greater weight
Solution Approach 1:
The patent consolidates multiple functional components into a single integrated media supply device, reducing the total weight compared to having separate components. This weight reduction directly decreases the deceleration moments during rotary movement of the blowing wheel. The integrated housing allows all functions (pressure control, distribution, venting) to be achieved with less mass, thereby reducing the inertial forces and moments that must be managed during acceleration and deceleration phases.
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
The solution achieves a space- and weight-saving design, simplifies media supply, and enhances container quality by allowing precise pressure control and adaptation to varying air requirements, reducing deviations and improving production consistency.
Implementation Method 1
The pressure control device is preferably also a pressure reducing device, which reduces the supplied pressure and outputs it as a secondary pressure
Implementation Method 2
heated plastic preforms are expanded into plastic containers by exposure to a free-flowing and in particular gaseous medium, for example compressed air
Data Source
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AI summary
A device for forming plastic preforms into plastic containers, comprising at least one forming station (100) which has a blow mold within which the plastic preforms can be formed into the plastic containers by applying a flowable medium, and an application device (102) which applies the flowable medium to the plastic preforms, wherein the device (1) has a media supply device (2) for supplying the medium to the application device. According to the invention, the media supply device (2) has at least one pressure inlet (22) for supplying the flowable medium to the control device (2) and at least two outlets (24, 26) for a secondary pressure.