Trimming-Scraping Unit for Wood Edging with Integrated Tool Assembly

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Solution Overview

Problem

Existing trimming-scraping units for wood components face inefficiencies due to the time-consuming process of replacing edging strip scraping tools with glue scraping tools, which reduces output.

Innovation Solution

A trimming-scraping unit design that integrates three pairs of tools - trimming tools, edging strip scraping tools, and glue scraping tools - within a single framework, allowing simultaneous operation without tool changes, with glue scraping tools positioned behind edging strip scraping tools to finish components in a single pass, and controlled by an electronic central unit to prevent jamming.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If edging strip scraping tools are replaced with glue scraping tools, then glue removal function is achieved, but production time increases and output decreases

Engineering Contradiction:
Improvetool functionalityVSAvoidunit output
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent combines edging strip scraping tools and glue scraping tools into a single integrated tool assembly that can perform both functions sequentially. The tool includes a scraping element positioned to first scrape the edging strip and then scrape glue from the panel surface, eliminating the need for tool replacement and maintaining continuous operation.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The tool assembly is designed with multi-functionality to perform both edging strip scraping and glue scraping operations. The scraping element can be positioned at different locations to execute different functions, allowing a single tool to replace multiple specialized tools and maintain productivity while achieving versatile functionality.

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

2Ease of manufacture

If tool replacement is performed between edging strip scraping and glue scraping, then specialized tools are used for each function, but operational time increases

Engineering Contradiction:
Improvetool specializationVSAvoidtool change time
Core Design Contradiction:
Ease of manufactureVSLoss of time

Solution Approach 1:

The patent merges edging strip scraping and glue scraping capabilities into a single tool assembly, eliminating tool replacement operations. The integrated design allows both functions to be performed sequentially without interrupting the workflow, thus removing the time loss associated with tool changes while maintaining functional specialization through configurable scraping element positions.

Inventive Principle:
Principle #5Merging (Combining)

3Productivity

If multiple tools are integrated in a single framework, then continuous operation is enabled, but device complexity increases

Engineering Contradiction:
Improveoperational continuityVSAvoidtool assembly structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent integrates multiple scraping functions into a single tool assembly with a unified support structure. The design combines edging strip scraping and glue scraping elements in one framework, enabling continuous operation without tool changes. The complexity is managed through a straightforward mechanical arrangement where scraping elements are positioned at different locations on the same tool body.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The tool assembly achieves multi-functionality through a universal design that can perform both edging strip scraping and glue scraping. The supporting frame and scraping element configuration allow the same tool structure to execute different functions by adjusting the position or orientation of the scraping element, reducing the need for multiple specialized tool structures.

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

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 design enhances efficiency by enabling continuous operation without tool changes, completing trimming and glue removal in a single pass, thereby increasing output and reducing operational time.

Implementation Method 1

a damping device (16) comprising two coupling pins (17), which are fixed to frame (9) on opposite sides of plate (12) in direction (15), extend parallel to direction (15), and engage in sliding manner respective cavities (18) formed in plate (12), with the interposition of respective springs (19) housed inside cavities (18)

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

each comprising a respective plate (23, 24) fitted in sliding manner to rails (20) and moved linearly in direction (8) along rails (20) by a respective actuating device (25, 26)

Methodology Applied
Scientific EffectElectromagnetic force: Electromagnet

Data Source

PatentEP1834744B1Trimming-scraping unit for finishing components of wood or similar
Publication Date: 2011.09.07 BIESSE SPA
  • EP1834744B1 patent drawingFigure 1
  • EP1834744B1 patent drawingFigure 2
  • EP1834744B1 patent drawingFigure 3

AI summary

A component (2) of wood or similar, defined by a panel (3) and by an edging strip (6) glued along at least part of a lateral edge (5) of the panel (3), is finished by means of a trimming-scraping unit having a pair of trimming tools (34) for trimming the edging strip (6), a pair of edging strip scraping tools (44) for scraping the edging strip (6), and a pair of glue scraping tools (50) for scraping off any leftover glue; the trimming tools (34), edging strip scraping tools (44), and glue scraping tools (50) all being housed simultaneously inside a supporting frame (9) of the trimming-scraping unit.