Edge Bander Entry Position Sensing for Precise Tool Alignment

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Solution Overview

Problem

Existing edge bander machines for wooden workpieces require complex and bulky systems to check alignment along multiple axes, involving multiple devices for precise control, which complicates the machining process.

Innovation Solution

An edge bander machine equipped with a measuring device that uses a contact roller, contact cylinder, and magnetic linear transducer to measure workpiece displacement upon entry, allowing the logic control unit to adjust machining tools for accurate processing, simplifying the alignment check and correction process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If multiple feeler members are used to control deviation along two axes, then alignment control precision is improved, but device complexity and bulk increase

Engineering Contradiction:
Improvealignment control precisionVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines multiple feeler members into a single feeler member that can detect deviations along both the first axis (X-axis) and the second axis (Y-axis). This single feeler member integrates the functionality of what would traditionally require multiple separate devices, thereby reducing device complexity while maintaining alignment control precision through centralized measurement capability.

Inventive Principle:
Principle #5Merging (Combining)

2Measurement precision

If multiple devices are used to check alignment along two axes, then measurement accuracy is improved, but the bulk and control process complexity increase

Engineering Contradiction:
Improvemeasurement accuracyVSAvoidcontrol process complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The single feeler member is designed with multi-functional capability to detect deviations along both the first axis and the second axis simultaneously. This universal measurement approach allows one device to perform the work of multiple specialized devices, reducing control process complexity while maintaining measurement accuracy through integrated detection of multi-directional deviations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Device complexity

If a single measuring device is used to measure workpiece position, then device complexity is reduced, but measurement precision may be compromised

Engineering Contradiction:
Improvedevice complexityVSAvoidmeasurement precision
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The single feeler member is segmented into multiple detection points or measurement zones that can independently detect deviations along different axes. By incorporating multiple sensing elements within one integrated structure, the device maintains measurement precision equivalent to multiple separate devices while avoiding the complexity of multiple independent systems.

Inventive Principle:
Principle #1Segmentation

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

Enables quick and reliable alignment feedback, reducing the complexity of the machining process by using a single device to measure and adjust the position of machining tools, ensuring precise removal of excess edges regardless of initial workpiece position.

Implementation Method 1

a magnetic linear transducer to measure workpiece displacement upon entry

Methodology Applied
Scientific EffectMagnetic linear transducer: Magnetic Field

Data Source

PatentEP3865267B1Edge bander machine for wooden workpieces provided with a measuring device of the workpiece position at the entry into the machine and operation method thereof
Publication Date: 2022.12.14 SCM GRP
  • EP3865267B1 patent drawingFigure 1~3
  • EP3865267B1 patent drawingFigure 4~5

AI summary

The present invention relates to a Machine (M) for working a workpiece (P) made of wood, metal, ceramic, plastic, glass, fiberglass, comprising working groups (2, 3) of said workpiece (P), means for moving said workpiece (P) configured for carrying said workpiece (P) in said machine (M), and a logic control unit (U) provided with a program for moving said working groups (2, 3), at least one measuring device (4), operationally connected to said logic control unit (U), capable of measuring the displacement of said workpiece (P) from a reference position and capable of sending said measurement to said logic control unit (U), so that said logic control unit (U) is capable of adjusting the position of said working groups (2, 3) with respect to said workpiece (P) during the working of said workpiece (P) so as to compensate said displacement. The present invention also relates to an operation method of said machine (M).