Portable Inspection Device for Sheet Processing Quality
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Solution Overview
Problem
Existing methods for checking the quality of mechanical processing in cutting, punching, or embossing devices are inefficient due to their stationary nature, leading to delayed intervention in faulty processes and limited flexibility in testing specific processing sections.
Innovation Solution
A manually portable testing device equipped with a camera, display, and evaluation software, allowing for automatic quality parameter determination and display on a smartphone or tablet, enabling location-independent quality checks and compliance with international standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a stationary inspection device is used, then automated quality checking is achieved, but location-dependent testing and time delays occur
Solution Approach 1:
The inspection device is transformed from a stationary fixed installation to a manually portable dynamic system that can be moved to different locations. The device maintains automated functionality through integrated image sensors and evaluation units while enabling flexible positioning at production sites, thereby eliminating time delays associated with transporting sheets to fixed inspection stations.
Solution Approach 2:
The inspection system is segmented into portable modular components including image sensors, lighting devices, and evaluation units that can be independently positioned and operated. This segmentation allows the automated inspection capability to be distributed across multiple portable units rather than requiring a single fixed installation, enabling immediate on-site quality checking.
2Extent of automation
If a stationary inspection device is used, then automated evaluation is possible, but flexibility in testing specific processing sections is limited
Solution Approach 1:
The portable inspection device enables dynamic selection and positioning at specific processing sections along the production line. Operators can manually move the device to inspect particular areas of interest, combining automated evaluation capabilities with the flexibility to target specific processing sections, thereby resolving the contradiction between automation and adaptability.
Solution Approach 2:
The inspection system adds the dimension of spatial flexibility by transitioning from a fixed one-location inspection point to a multi-location portable system. This allows automated evaluation to occur at multiple processing sections throughout the production line, enhancing versatility while maintaining automation through the integrated imaging and analysis components.
3Measurement precision
If sheets are removed from production for inspection, then quality checking can be performed, but productivity is reduced
Solution Approach 1:
The portable inspection device enables inspection to be performed dynamically within the production flow without requiring sheet removal or interruption of the manufacturing process. The device can be positioned and operated in-line, allowing quality checking to occur concurrently with production, thereby maintaining both measurement precision and productivity.
Solution Approach 2:
The inspection system enables continuous quality monitoring throughout the production process by allowing rapid positioning and immediate inspection at various stages. Sheets remain in continuous production flow while quality checking occurs without interruption, maintaining the continuity of useful action and preventing productivity loss associated with removing sheets for inspection.
4Adaptability or versatility
If manual transport to inspection device is required, then location-independent testing is achieved, but time expenditure increases
Solution Approach 1:
Instead of transporting sheets to a fixed inspection device, the inspection device is inverted to be portable and transportable to the sheets. This reversal of the transport relationship eliminates time expenditure for sheet handling while maintaining location-independent testing capability, as the device can be manually moved to any required position along the production line.
Solution Approach 2:
The portable inspection device acts as an intermediary that bridges the gap between fixed automated inspection systems and the need for location-flexible quality checking. By being manually portable yet functionally automated, it serves as a mediator that eliminates transport time for sheets while preserving the ability to perform inspection at any location, thereby resolving the contradiction between adaptability and time efficiency.
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
Facilitates quick, objective, and flexible quality assurance by allowing on-site or remote testing of sheet processing quality, reducing time delays and enhancing accessibility of results, with the ability to check various processing sections and communicate findings easily.
Implementation Method 1
a camera device (7) which generates image data of this processing section (10)
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a method for inspecting the quality of results of the mechanical processing of a sheet (3), preferably a paper, cardboard, paperboard, plastic or textile sheet, in a cutting, punching or embossing device by means of a manually portable inspection device (1), preferably a smartphone, a personal digital assistant (PDA) or a tablet computer, the inspection device (1) comprising: a camera apparatus (7) having at least one image sensor; a display apparatus (12); and an evaluation apparatus (13), wherein the inspection device (1) is manually positioned relative to a sheet, wherein at least one processed portion (10) of the sheet (3) is captured in an imaging manner by means of the camera apparatus and image data of the processed portion (10) are produced, and wherein at least one quality parameter (e.g. standard distance) of a processing result of the sheet (3) is determined from the produced image data by means of the evaluation apparatus (13) and is preferably displayed on the display apparatus (12).