Wooden Workpiece Repair Device with Sensor-Based Patch Orientation
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Solution Overview
Problem
Existing devices for repairing defects in wooden workpieces lack accurate alignment of repair patches, leading to unreliable orientation and reduced efficiency.
Innovation Solution
A repair device equipped with a setting punch, feed device, detection means using two sensors, and a rotary device for rotating the patch, ensuring precise angular alignment and orientation of the repair patches by detecting markings on the patches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single sensor is used to detect the marking on the repair patch, then the device complexity is reduced, but the measurement precision and reliability of patch orientation detection deteriorates
Solution Approach 1:
The patent applies local quality by using two sensors positioned at different locations to detect different aspects of the marking. Each sensor provides localized detection information, and together they create a comprehensive orientation detection system that overcomes the limitations of a single sensor.
Solution Approach 2:
The marking on the repair patch serves as an intermediary element that the two sensors detect. By detecting the marking from multiple sensor positions, the system accurately determines patch orientation without requiring complex direct measurement mechanisms.
2Device complexity
If manual alignment of repair patches is used, then the device complexity is reduced, but the manufacturing precision and productivity deteriorate
Solution Approach 1:
The patent replaces manual mechanical alignment with an automated optical detection system. Two sensors detect markings on the repair patch to automatically determine orientation, eliminating the need for manual alignment while achieving high precision.
Solution Approach 2:
The repair patch includes self-aligning features through markings that automatically indicate the correct orientation. The detection system reads these markings to enable the patch to self-align during the feeding process, reducing the need for complex external alignment mechanisms.
3Productivity
If high-speed feeding of repair patches is implemented, then the productivity is improved, but the measurement precision of orientation detection deteriorates
Solution Approach 1:
The marking is pre-applied to the repair patch during manufacturing, and the two sensors are pre-positioned to detect specific features of the marking. This preliminary preparation enables rapid detection without compromising precision, as the detection system is optimized in advance.
Solution Approach 2:
The marking uses distinct color or optical properties that are easily detectable by the sensors. This high-contrast marking design enables fast detection with high precision, allowing the system to maintain both high productivity and accurate orientation detection.
Data Source
AI summary
A repair device for repairing a defect in a wooden workpiece includes: a setting punch for inserting a repair patch into a recess formed in a wooden workpiece; a feed device for feeding the repair patches to the setting punch; and a detector for detecting the orientation of the repair patch with the aid of a marking arranged on the repair patch. A rotary device may be used for rotating the repair patch about a rotational axis. The detector may include a first sensor and a second sensor, which are arranged at the repair device in such a way that they are used for detecting the marking of detection regions disposed at a distance from one another, the marking being arranged on the repair patch.