Edgebanding Pressure Roller Alignment for Uniform Bonding
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Solution Overview
Problem
Existing woodworking machines face issues with pressure rollers applying uneven pressure due to component tolerances and material variations, leading to inconsistent edgebanding on workpieces.
Innovation Solution
A pressure system with a rotatable pressure roller, measuring device, evaluation unit, and control unit that adjusts the roller's position and inclination relative to a reference line based on real-time data to ensure uniform pressure application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a pressure roller is used to press edgebanding against the workpiece, then the joining process is assisted and uniform pressure is applied, but component tolerances cause the roller axis to be at an angle to the joining plane, resulting in uneven pressure distribution
Solution Approach 1:
The patent implements a feedback mechanism where a measuring device continuously monitors the position and orientation of the pressure roller relative to the joining plane, and an evaluation unit processes this data to detect deviations. The control unit then adjusts the pressure roller's position and inclination based on this feedback to maintain uniform pressure distribution despite component tolerances and material variations.
Solution Approach 2:
The pressure roller system is made dynamic through continuous adjustment capabilities. The control unit modifies the pressure roller's position and inclination in real-time during operation, allowing the system to adapt to variations in workpiece geometry, adhesive properties, and coating material characteristics, thereby maintaining consistent edgebanding quality.
2Productivity
If the pressure roller position is adjusted to a certain contact force, then the joining process is facilitated, but preset pressure force results in edgebanding being pressed more firmly on one side and less firmly on the other due to random angles
Solution Approach 1:
The measuring device provides continuous feedback on the pressure roller's actual position and orientation, enabling the control unit to detect and correct angular deviations that cause uneven pressure distribution. This feedback loop ensures that the pressure roller maintains the correct orientation relative to the joining plane throughout the edgebanding process.
Solution Approach 2:
The system dynamically changes the position and inclination parameters of the pressure roller based on real-time measurements. The control unit adjusts these parameters to compensate for deviations, ensuring that the pressure force is distributed uniformly across the entire contact surface between the pressure roller and the edgebanding-workpiece interface.
3Device complexity
If a pressure system with fixed pressure roller is used, then the structure is simple, but it cannot compensate for tolerances and material variations leading to inconsistent results
Solution Approach 1:
The patent introduces a feedback mechanism with a measuring device that monitors the pressure roller's position and orientation, and an evaluation unit that processes this data. This feedback system enables the control unit to automatically adjust the pressure roller's position and inclination in response to detected deviations, compensating for component tolerances and material variations without significantly increasing structural complexity.
Solution Approach 2:
The pressure system is designed to self-regulate by using its own measurement capabilities to detect and correct deviations. The control unit automatically adjusts the pressure roller based on real-time data from the measuring device, eliminating the need for manual intervention and maintaining consistent edgebanding quality while keeping the overall system structure relatively simple.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
The pressure system (60) for pressing a coating material, in particular an edge banding, onto the narrow side of a plate-shaped workpiece made of wood or wood substitute comprises a pressure roller (62) rotatably mounted in a holder (63) about a pivot axis (A) and at least one measuring device (68). The measuring device (68) is designed to record operating data concerning the position or operating state of the pressure roller (62) relative to a predetermined reference line or reference surface (V). The pressure system (60) further comprises an evaluation device which, depending on the operating data recorded by the measuring device (68), compares the position or location of the pressure roller (62) relative to the predetermined reference line or reference surface (V) or the operating state of the pressure roller (62) with a predetermined target operating state.