Log Peeling Radiographic Orientation Detection
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Solution Overview
Problem
Existing log peeling apparatuses struggle to recognize and identify the orientation of logs with very regular outer surfaces, as the irregularities on the surface are necessary for accurate recognition and orientation.
Innovation Solution
The apparatus incorporates a radiographic examination device, such as an x-ray emission and detection unit, to generate radiographic scans of the log, allowing for the identification of the log's internal structure and orientation, even for logs with regular outer surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a 3D scanner is used to detect the external geometric shape of the log, then the angular orientation of the log can be identified, but the log cannot be recognized or oriented when it has a very regular external surface
Solution Approach 1:
The patent introduces an intermediary substance (dye or pigment) that is applied to the log surface before scanning. This intermediary creates artificial irregularities or markers on the log surface, enabling the 3D scanner to detect and identify the log's orientation and characteristics even when the natural surface is very regular. The intermediary acts as a mediator between the scanning system and the log, bridging the gap caused by the log's regular surface geometry.
2Device complexity
If logs are fed to the peeling machine at random without identity tracking, then the apparatus does not need complex tracking systems, but the peeling machine does not know the identity or angular orientation of each individual log
Solution Approach 1:
The patent applies the preliminary action principle by marking or dyeing the log surface before the log enters the peeling machine. This preliminary marking creates identifiable characteristics on the log that can be detected by the 3D scanner. As a result, the system can track and identify each log's identity and orientation without requiring complex continuous tracking systems, since the identifying markers are already in place before processing begins.
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
This solution enables the recognition and orientation identification of logs with regular outer surfaces, improving the efficiency and accuracy of the peeling process, and allowing for direct optimization of cutting parameters within the peeling apparatus itself.
Implementation Method 1
a radiographic examination device, which comprises an x-ray emission unit and an x-ray detection unit
Data Source
AI summary
Apparatus for peeling a log (5) comprising a cutting station (3), a loading station (2) and a device (4) for transferring logs (5) from the loading station (2) to the cutting station (3), the cutting station (3), the loading station (2) and the transfer device (4), in use, interacting with each other to position the log (5) in the cutting station (3). The loading station (2) comprises a device (10) for axially rotating the log (5) about a second rotation axis (11) and a radiographic examination device (19) configured to generate, in use, radiographic scans of the log (5). An electronic unit is connected both to the radiographic examination device (19), to receive digital-format data from it relating to each radiographic scan generated by it, and to the axial rotation device (10), and which is programmed to use said digital-format data to control the operation of the transfer device (4) and/or the cutting station (3).