Blow Molding Valve Wear Testing in Hard-to-Reach Forming Stations
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Solution Overview
Problem
Existing blow molding machines lack effective methods to monitor and control the wear condition of valve devices, particularly those installed in hard-to-reach areas, which can lead to operational inefficiencies and potential machine downtime.
Innovation Solution
A device with movable support and monitoring system that uses detection devices, such as cameras or acoustic sensors, to optically or acoustically assess the wear of valve devices without contact, allowing for real-time or scheduled wear monitoring and providing predictive maintenance alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If valve devices are installed in hard-to-reach areas to achieve compact machine design, then space utilization is improved, but accessibility for monitoring and maintenance deteriorates
Solution Approach 1:
The patent replaces manual visual inspection and physical access to valve devices with an optical monitoring system. A camera captures images of the valve devices, and image processing algorithms automatically analyze wear conditions, eliminating the need for operators to physically access hard-to-reach areas while maintaining monitoring capability
Solution Approach 2:
The patent creates a digital copy (image) of the valve device state through camera imaging. This optical copy allows remote monitoring and analysis of valve wear without requiring physical presence at the valve location, effectively decoupling monitoring accessibility from physical accessibility
2Device complexity
If traditional manual inspection methods are used for valve wear monitoring, then device complexity is kept low, but monitoring precision and reliability deteriorate
Solution Approach 1:
The patent substitutes manual visual inspection with an automated optical measurement system. The camera-based imaging system combined with image processing algorithms provides objective, quantitative wear assessment that is more precise and reliable than subjective manual inspection, while adding only moderate system complexity
Solution Approach 2:
The patent implements a feedback mechanism where image data from the camera is processed to generate wear condition information, which can trigger alerts or maintenance schedules. This closed-loop feedback system improves monitoring reliability by automatically detecting and reporting wear conditions rather than relying on periodic manual checks
3Loss of energy
If valve wear is not monitored effectively, then operational costs are reduced, but machine downtime and failure risk increase
Solution Approach 1:
The patent enables preliminary detection of valve wear conditions before they lead to failure. By continuously monitoring valve wear through image analysis, the system allows for scheduled maintenance replacement of valves before they fail, preventing unplanned downtime while optimizing maintenance timing to avoid unnecessary replacements
Solution Approach 2:
The patent establishes a feedback loop where wear detection results inform maintenance decisions. The system provides real-time or periodic feedback on valve condition, enabling operators to balance maintenance costs against reliability requirements by replacing valves based on actual wear state rather than fixed schedules
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 early detection of valve wear, reducing the risk of machine failure, optimizing operations, and allowing for proactive replacement of parts, thereby enhancing the reliability and efficiency of plastic preform formation into containers.
Implementation Method 1
detection device which is suitable and intended to detect the wear condition of the valve device by means of electromagnetic radiation and/or acoustically and contactlessly
Implementation Method 2
an acoustic detection method, for example, using sound waves and, in particular, ultrasound
Implementation Method 3
the wear condition is detected optically, in particular using light
Data Source
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AI summary
Device (100) for forming plastic preforms (V) into plastic containers (F) with a movable carrier (22) on which a plurality of forming stations (24) for forming the plastic preforms (V) into the plastic containers (F) are arranged, wherein these forming stations (24) each have valve arrangements (80) for supplying the plastic preforms (V) with a flowable and in particular gaseous medium for their expansion, and wherein each of these valve arrangements (80) has at least two controllable valve devices (60), wherein these valve devices (60) have movable piston devices (75) which can switch the valve devices (60) between at least two valve positions, characterized in that the device has a monitoring device for checking a wear condition of at least one of the valve devices.wherein this monitoring device comprises at least one detection device (64) which is suitable and intended to detect the wear state of the valve device (60) optically and without contact.