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Special-shaped framework glulam and manufacturing technique therefor

A technology of glulam and preparation technology, applied in the direction of manufacturing tools, wood processing equipment, wood layered products, etc., can solve the problems of wasting high-quality wood, cutting, etc., achieve the effect of increasing wear, reducing wear, and improving high-quality utilization

Inactive Publication Date: 2008-05-21
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the milling process of non-rectangular finished products, a large amount of high-quality wood will be wasted

Method used

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  • Special-shaped framework glulam and manufacturing technique therefor
  • Special-shaped framework glulam and manufacturing technique therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Processing of special-shaped frame glulam with different widths and different thicknesses—wooden doors, windows, and windows, the material is Pinus sylvestris, and the specific preparation process steps are as follows:

[0029] 1) As shown in Figure 1, the frame glulam finished product 1 is divided into an upper area 11, a middle area 12, and a lower area 13 in the thickness direction according to the geometric shape, and the thicknesses of the upper, middle, and lower areas 11, 12, and 13 are measured respectively And the maximum width, the upper area 11: 60mm wide, 18mm thick, the middle area 12: 40mm wide, 31mm thick, the lower area 13: 60mm wide, 20mm thick; where, the width is the direction parallel to the adhesive layer of the glulam, and the thickness is the direction parallel to the glue layer. layer vertical direction;

[0030] 2) As shown in Figure 2, determine the thickness and width of the upper, middle and lower regions 21, 22, and 23 of the glulam 2 to be ...

Embodiment 2

[0037] Processing of special-shaped frame glulam with different widths and different thicknesses—wooden doors, windows, and windows are framed, and the material is Pinus sylvestris:

[0038] 1) As shown in Figure 3, the frame glulam finished product 3 is divided into an upper area 31, a middle area 32, and a lower area 33 in the thickness direction according to the geometric shape, and the thicknesses of the upper, middle, and lower areas 31, 32, and 33 are measured respectively And the maximum width, upper area 31: width 39mm, thickness 24mm, middle area 32: width 39mm, thickness 21mm, lower area 33: width 77mm, thickness 24mm; where, the width is the direction parallel to the adhesive layer of the glulam, and the thickness is the direction parallel to the adhesive layer. layer vertical direction;

[0039] 2) As shown in Figure 4, determine the thickness and width of the upper, middle and lower regions 41, 42, and 43 of the glulam 4 to be processed according to the measured t...

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Abstract

The invention discloses a special-shaped frame laminted wood and a production technique thereof. The laminted wood comprises: three or more layers of finger joined boards that are glued successively, thickness and maximum breadth of each layer of finger jointed board and finished product of the frame laminted wood in a corresponding area are equivalent to each other and certain processing redundancy is reserved on the processing surface of each layer of the finger joined boards. The production technique comprises steps that: 1) the finished product of the frame laminted wood are divided into more than three areas at a thickness direction based on a geometry shape and the thickness and maximum breadth of each area are respectively measured; 2) the corresponding thickness and breadth of each area of the frame laminted wood to be processed are dertermined based on the measured thickness and the breadth; 3) the finger joined boards that are corresponding to each area are selected and processed based on the size determined in the step 2); 4) the processed finger joined boards are gelatinized; 5) the finger joined boards are assembled into special-shaped blanks; (6) the special-shaped blanks are laminated through cold pressing or high frequency hot pressing. The invention can improve the utilization ratio of the wood by 20-30 percent.

Description

technical field [0001] The invention relates to a frame glulam and its processing technology, in particular to a special-shaped frame glulam with unequal width and thickness and its processing technology. Background technique [0002] In the rectangular frame glulam lumber manufacturing project, common defects such as knots, cracks, and diagonal lines in the wood can be removed before billet assembly, which not only maintains the natural texture of the wood, but also improves the physical properties of the wood. Great use of small materials, excellent use of inferior materials. [0003] At present, frame glulam is processed by various processes such as log production, drying, double-sided planing, optimization processing, tenon milling, tenon gluing, finger jointing, board surface gluing, billet assembly, hot (cold) pressing, etc. Made of, usually three-layer rectangular frame glulam. Then mill the frame glulam according to the shape of the finished product. During the mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B32B21/13B27D1/08B27D1/10
Inventor 张占宽刘君良王雪花曾娟
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY