Glued Wooden Block Production via Wedge Alignment
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Solution Overview
Problem
Existing methods for producing wooden blocks from elongated wooden parts are inefficient and require additional pressure generators, leading to potential jamming and alignment issues during the pressing process.
Innovation Solution
The method involves using wooden parts with obliquely angled side surfaces, where alignment pressure is applied across the glued surfaces, converting it into horizontal pressing pressure to ensure reliable alignment and pressing without the need for additional pressure generators, and utilizing a system with a packaging station and transfer unit to rotate and position the parts for efficient block formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If additional pressure generators are used to apply pressing pressure, then the pressing force is sufficient, but the device complexity increases and the process becomes more cumbersome
Solution Approach 1:
The system uses the alignment pressure itself to generate the pressing force through the wedge effect. The angled surfaces of the wooden parts convert the vertical alignment pressure into horizontal pressing pressure, eliminating the need for separate pressure generators. The alignment pressure serves dual purposes: aligning the parts and pressing them together.
Solution Approach 2:
The invention changes the geometric parameter of the wooden parts by providing them with angled surfaces (wedge shape). This geometric modification enables the conversion of alignment pressure into pressing pressure, allowing the system to achieve sufficient pressing force without additional pressure generation equipment.
2Reliability
If high clamping and alignment pressure is applied, then the wooden parts are firmly bonded, but the risk of jamming and getting stuck increases
Solution Approach 1:
The wooden parts are given asymmetric angled surfaces rather than flat parallel surfaces. This asymmetric geometry creates a wedge effect that naturally guides the parts into proper alignment during the pressing process, reducing the risk of misalignment and jamming while still achieving firm bonding.
Solution Approach 2:
The angled surfaces perform preliminary alignment action as the wooden parts are being pressed together. The geometry of the angled surfaces automatically guides the parts into correct position before the final bonding occurs, preventing jamming during the pressing process.
3Ease of manufacture
If the wooden parts are pressed without precise alignment, then the process is simpler, but the cross-sectional dimensions are inconsistent and require extensive finishing work
Solution Approach 1:
The asymmetric angled surfaces of the wooden parts create a self-aligning mechanism during pressing. The wedge geometry naturally guides the parts into precise alignment, ensuring consistent cross-sectional dimensions in the resulting block without requiring extensive finishing work.
Solution Approach 2:
The invention introduces a geometric dimension (angled surfaces) that enables automatic alignment in the horizontal direction through the wedge effect. This dimensional feature allows the system to achieve precise alignment as a byproduct of the pressing process itself.
4Device complexity
If the wooden parts are fed and positioned manually, then the setup is simpler, but the productivity and material yield are reduced
Solution Approach 1:
The packaging station and pressing station are merged into an integrated system where wooden parts are automatically rotated, positioned, and pressed in sequence. This combination of functions eliminates manual intervention and significantly increases productivity while maintaining reasonable system complexity.
Solution Approach 2:
The system enables continuous operation by automatically rotating and positioning wooden parts in the packaging station, then seamlessly transferring them to the pressing station. This continuous workflow maximizes productivity and material yield without interruption.
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 approach allows for the easy and precise alignment and pressing of wooden parts, reducing the need for additional pressure, minimizing rework, and enabling the production of blocks with consistent cross-sectional dimensions and high material yield, while also facilitating the creation of an endless strand of blocks.
Implementation Method 1
The alignment pressure is applied transversely to the glued surfaces. Due to the angled glued surfaces, this alignment pressure is converted into a horizontally directed pressing pressure, which firmly presses the adjacent wooden parts against each other.
Data Source
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AI summary
Method for producing blocks of wooden parts which are placed against one another and glued together, and installation for carrying out the method. Blocks of wooden parts (1) which are placed against one another and glued together are produced using the method. They are subjected to aligning pressure in the direction of their bearing side and to pressing pressure transversely to their glued lateral faces. The aligning pressure is applied transversely to the glued lateral faces. They lie obliquely to the bearing sides of the wooden parts (1) and convert the aligning pressure into the pressing pressure, with respect to which the glued lateral faces lie obliquely. The wooden parts (1) can have a triangular or trapezoidal cross section. The installation has at least one feeding unit and at least one glueing station for the wooden parts (1) and at least one pressing station (39). Arranged upstream thereof is at least one baling station (38), the charging end thereof for the wooden parts (1) being provided with at least one transfer unit (49). The latter is used to insert the wooden parts (1) into the baling station (38) in such a way that successive wooden parts (1) are each rotated about their longitudinal axis in such a way that they lie on one another by way of their oblique longitudinal sides.