Preform Gripping Head Pneumatic Ejection for Misaligned Release
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Solution Overview
Problem
Current preform conveying systems face issues with inefficient release of misaligned or defective preforms, leading to damage of heating oven components, uneven heating, and high production costs due to complex ejection systems and dependence on collar size, which hampers production rates and causes frequent scrapping of preforms.
Innovation Solution
A system utilizing a shape-recognition camera and a programmable controller to detect misaligned preforms, coupled with a pressurized fluid injection through a bore in the gripping head to detach and eject preforms before they enter the heating oven, ensuring rapid and precise release independent of collar dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex ejection systems are used to release defective preforms, then the release capability is improved, but the device complexity increases and production rates decrease
Solution Approach 1:
The patent replaces complex mechanical ejection systems with a simple pneumatic or hydraulic blowing system. A blowing nozzle delivers a controlled jet of fluid through a bore in the gripping head to detach the preform, substituting intricate mechanical ejection mechanisms with a simpler fluid-based approach that maintains reliability while reducing complexity
Solution Approach 2:
The invention uses pneumatic or hydraulic pressure delivered through a blowing nozzle to release the preform from the gripping head. This pneumatic/hydraulic mechanism provides reliable release capability without requiring complex mechanical ejection systems, thereby reducing device complexity while maintaining effective preform detachment
2Reliability
If complex ejection systems are used to release defective preforms, then the release capability is improved, but the productivity decreases due to production disruptions
Solution Approach 1:
By replacing complex mechanical ejection systems with a simple blowing mechanism, the patent minimizes system failure points and maintenance requirements, ensuring continuous operation and maintaining high production rates while still providing reliable defective preform release capability
Solution Approach 2:
The pneumatic or hydraulic blowing system enables rapid and reliable preform release without the mechanical complexity that causes production disruptions. The simplicity of the blowing mechanism allows for quick operation and minimal downtime, thereby maintaining high productivity while ensuring effective release of defective preforms
3Force
If conventional gripping systems are used, then the gripping capability is improved, but the preform body contact is prevented, causing misaligned preforms to damage heating oven components
Solution Approach 1:
The patent introduces a controlled pneumatic or hydraulic blowing force as an intermediary mechanism between the gripping head and the preform. This intermediary blowing force can gently realign misaligned preforms or control their positioning during release, preventing direct contact with heating oven components while maintaining the necessary gripping force for transport
4Manufacturing precision
If detection systems are added to identify defective preforms, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical inspection systems with simpler optical or sensor-based detection mechanisms. These lighter, less complex detection systems can identify misaligned or defective preforms without adding significant system complexity, thereby maintaining manufacturing precision while avoiding the burden of intricate mechanical inspection equipment
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 high-speed, precise release of single defective preforms, reducing damage to heating components, maintaining even heating, and minimizing production disruptions by eliminating the need for complex ejection mechanisms and reducing waste.
Implementation Method 1
a pressurized fluid injection through a bore in the gripping head to detach and eject preforms
Data Source
AI summary
The invention concerns a device, an installation and a method for conveying a hollow body secured to a transport device, comprising a step of injection of a disinfecting fluid through at least one bore designed to pass through said transport device and opening into the inner volume of the hollow body secured to said transport device.