Offset Dual-Axis Tree Trunk Profiling Tools
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Solution Overview
Problem
Existing profiling devices for tree trunks face instability and inefficiency due to the lack of support for corner areas being cut, leading to vibration and increased machining difficulties, and the use of splitting wedges which can get stuck and require frequent replacement, causing additional costs and defects.
Innovation Solution
The first and second machining tools are arranged with their axes in a common plane, allowing them to work intermittently and partially overlap in the transverse direction of the tree trunk, using a combined milling/saw segment head and milling head with distributed saw segments and chopping knives to prevent collision and ensure stable machining without the need for splitting wedges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a single circular saw blade is used for the first machining tool, then the machining volume is reduced, but the corner area becomes unstable and vibrates during machining
Solution Approach 1:
The first machining tool uses a segmented saw blade with multiple saw segments distributed around its periphery, allowing the blade to cut through the tree trunk in sections while maintaining structural stability. The segmentation enables the blade to remove material efficiently while the distributed segments provide structural support to the corner area during machining.
2Stability of the object's composition
If splitting wedges are used to support the corner area, then machining stability is improved, but the device complexity increases and maintenance requirements increase
Solution Approach 1:
The invention removes the splitting wedge component entirely from the machining system. Instead of using separate support wedges, the segmented saw blade and chopping knives are positioned and configured to provide inherent support to the corner area during machining, eliminating the need for additional support mechanisms.
Solution Approach 2:
The support function previously performed by separate splitting wedges is merged into the machining tools themselves. The segmented saw blade and chopping knives are designed to work in conjunction with each other, where the cutting tools also provide structural support to the corner area, combining multiple functions into single components.
3Stability of the object's composition
If the first and second machining tools are positioned far apart, then each tool has adequate support, but the machining time increases
Solution Approach 1:
The segmented saw blade performs preliminary cutting action to create a stable configuration before the chopping knives complete the corner removal. The saw segments cut through the tree trunk first, creating a stable intermediate structure that supports the subsequent chopping operation, allowing the tools to be positioned closer together.
Solution Approach 2:
The machining process is designed to be continuous with the segmented saw blade and chopping knives working in close proximity. The tools are positioned such that their machining zones overlap or adjoin, allowing uninterrupted machining operation without requiring the tools to be far apart for support stability.
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 arrangement minimizes the split length and eliminates the need for splitting wedges, reducing machining defects, costs, and improving the machining result by allowing the tools to work simultaneously and adjustably, ensuring a stable and efficient cutting process.
Implementation Method 1
a first rotating machining tool (2) which rotates about a first axis (A) and has a first workpiece machining zone (I), and a second rotating machining tool (3) which rotates about a second axis (B)
Implementation Method 2
saw blades are used on the one hand to produce an optimum lateral edge of the sideboard with aid of the saw cut, and, on the other hand, chopping knives to produce shavings
Data Source
AI summary
A device for machining, in particular, profiling tree trunks is provided, which includes two rotating machining tools (2, 3), whose axes (A, B) are essentially offset by 90° in relation to one another and are oriented in an essentially perpendicular direction to the longitudinal axis of the tree trunk. The first machining tool (2) and the second machining tool (3) are arranged in relation to one another in such a way that the first axis (A) and the second axis (B) lie on a common plane (E) and/or that their respective workpiece machining zones (I, II) at least partially overlap one another in the transversal direction of the tree trunk or adjoin one another.