Veneer Sheet Laying Method for Glued Laminated Wood

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Solution Overview

Problem

Existing methods fail to effectively lay a veneer sheet over the lower surface of a base material in a horizontal position during the manufacturing of glued laminated wood, requiring secure support and precise alignment for successful bonding.

Innovation Solution

A method involving the use of a first support means to initially support the base material, followed by a second support means that partially supports the veneer sheet, allowing it to droop and come into contact with the base material, with controlled movement of support plates and heated plates for hot pressing, ensuring proper alignment and bonding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the base material is securely supported by a conveyer during veneer sheet laying, then the laying operation can be performed successfully, but the base material must be moved into the pressing region and supported throughout the process

Engineering Contradiction:
Improvelaying operation successVSAvoidsupport system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The support function is divided into two separate support means: a first support means that supports the base material and a second support means that supports the veneer sheet. This segmentation allows each support means to be optimized for its specific function and enables independent movement and retraction, resolving the contradiction between reliable laying operation and device complexity.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the veneer sheet is fed to a movable metal carrier and pressed to the base material, then bonding can be achieved, but the base material must be moved by a conveyer and supported by the same conveyer

Engineering Contradiction:
Improvebonding achievementVSAvoidoperation simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The support and pressing functions are segmented into separate components: the first support means for base material support, the second support means for veneer sheet support, and heated plates for pressing. This segmentation simplifies operation by allowing each component to perform its specific function independently without requiring complex coordinated movement of a single conveyer system.

Inventive Principle:
Principle #1Segmentation

3Ease of manufacture

If no support means is used for the veneer sheet, then the process is simpler, but the veneer sheet cannot be properly aligned and contacted with the base material

Engineering Contradiction:
Improveprocess simplicityVSAvoidveneer sheet alignment
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The support function for the veneer sheet is extracted as a separate second support means, which can be selectively activated only when needed for veneer sheet laying. This extraction maintains process simplicity by using a separate, dedicated support mechanism rather than complicating the entire system, while still achieving precise alignment and contact through controlled positioning.

Inventive Principle:
Principle #2Taking out (Extraction)

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 successful laying and bonding of veneer sheets over the lower surface of a base material, improving the manufacturing process for glued laminated wood by ensuring secure contact and efficient adhesive curing.

Implementation Method 1

hot pressed

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

bonded by adhesive

Methodology Applied
Scientific EffectAdhesive curing: Chemical Bonding

Data Source

PatentEP1938933B1Method for laying a sheet over the lower surface of a base material
Publication Date: 2013.01.23 MEINAN MASCH WORKS INC
  • EP1938933B1 patent drawingFigure 1
  • EP1938933B1 patent drawingFigure 2
  • EP1938933B1 patent drawingFigure 3

AI summary

The present invention discloses a method for laying a sheet (27) over the lower surface of a base material disposed in a generally horizontal position. According to the method, the base material is supported at the lower surface thereof by a first support means (23), and the sheet is placed immediately below and in facing relation to the lower surface of the base material and then supported at the lower surface thereof by a second support means (5). The sheet and the base material are made to be in contact with each other over partial surfaces thereof. Subsequently, the first support means (23) is moved away from the base material and the sheet and the base material are placed together on a rigid horizontal surface (1) so that the sheet is laid substantially over the entire lower surface of the base material.