Plastic Preform Inspection Before Cooling for Quality Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing systems for producing plastics material containers require more precise monitoring of preforms to reduce errors and waste, especially when preforms are produced with less heating, but current automation and error processing are inadequate.
Innovation Solution
An apparatus and method that includes a first inspection device between production and cooling stages to inspect preforms, with an image recording device for spatially resolved imaging, and a transport system for individualized handling and control of forming stations based on inspection results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If preforms are produced with less heating to reduce energy consumption, then energy efficiency is improved, but manufacturing precision deteriorates due to increased errors and waste
Solution Approach 1:
The patent applies preliminary action by implementing inspection of preforms immediately after production while they are still warm, before cooling occurs. This timing allows detection of defects when thermal expansion and material properties are most favorable for accurate measurement, enabling early intervention and reducing waste without requiring excessive heating
Solution Approach 2:
The patent implements feedback through an inspection device that monitors preform quality and provides information back to the production system. This feedback mechanism enables real-time adjustments to production parameters, maintaining manufacturing precision even with reduced heating by compensating for variations through continuous monitoring and control
2Duration of action of stationary object
If inspection device is placed after cooling to protect from heat damage, then device durability is improved, but measurement precision deteriorates due to thermal contraction and material property changes
Solution Approach 1:
The inspection device is positioned to perform measurements immediately after preform production while the material is still warm, before cooling and potential defects become apparent. This preliminary inspection captures critical quality information when thermal effects are most favorable for measurement accuracy
Solution Approach 2:
The system provides beforehand cushioning by implementing inspection and potential rejection of defective preforms before they proceed through subsequent production stages. This prevents defective preforms from causing downstream issues and reduces waste, compensating for the reduced thermal margin
3Productivity
If automated inspection and handling systems are implemented to reduce labor, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the production system into distinct functional modules: production units for making preforms, a separate inspection device for quality control, and transport apparatus for movement. This modular segmentation enables automated operation while keeping each component relatively simple and maintainable
Solution Approach 2:
The patent introduces an intermediary transport apparatus that connects the production units and inspection device. This intermediary component enables automated material handling and coordination between system elements, improving productivity while maintaining manageable complexity through clear functional separation
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
Enhances automation and reduces errors by enabling precise inspection and individualized handling of preforms, improving the production process efficiency and reducing waste.
Implementation Method 1
this first inspection device has an image recording device that is suitable and intended for recording at least one spatially resolved image of a plurality of plastics material preforms
Implementation Method 2
the apparatus further has a cooling device for cooling the plastics material preforms produced by the production device
Data Source
AI summary
An apparatus for producing plastics material containers has a production device for producing plastics material preforms, a forming device that forms the plastics material preforms into the plastics material containers and a cooling device for cooling the plastics material preforms produced by the production device. The apparatus has a first inspection device that is configured for inspecting at least one region of the plastics material preforms produced by the production device, wherein this first inspection device is arranged between the production device and the cooling device. The first inspection device has an image recording device that is configured for recording a spatially resolved image of a plurality of plastics material preforms.