Large-section laminated wood manufactured from undersized logs and manufacturing method thereof

A manufacturing method and technology of glued wood, applied in the jointing of wooden veneers, manufacturing tools, making finger joints, etc., can solve the problems of cumbersome procedures and achieve the effects of simplified procedures, excellent mechanical strength and simple operation

Inactive Publication Date: 2020-05-05
江西兴创木业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this solution has the following problems: when processing, it adopts a two-way pressurization method, and the operation accuracy is high, and it needs to process four prisms, five prisms and hexagonal prisms separately, and the process is more cumbersome

Method used

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  • Large-section laminated wood manufactured from undersized logs and manufacturing method thereof
  • Large-section laminated wood manufactured from undersized logs and manufacturing method thereof
  • Large-section laminated wood manufactured from undersized logs and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Such as figure 1 , figure 2 as well as image 3 As shown, a large-section glued wood made of small-diameter wood includes a glued wood body. Polygonal prism 1 comprises a opposite side plane 101 and the sawtooth surface 102 that are parallel to each other and the path length is equal, and the sawtooth surface 102 comprises the upper and lower sawtooth surfaces that are arranged oppositely, and the upper sawtooth surface is composed of the first sawtooth surface 1021, the second sawtooth surface 1022, the lower serrated surface is composed of the third serrated surface 1023 and the fourth serrated surface 1024, the first serrated surface 1021 is consistent with the third serrated surface 1023; the second serrated surface 1022 and the fourth serrated surface 1024 consistent;

[0037] The half-toothed polygonal prism 2 is obtained by symmetrically cutting the two opposite side planes 101 of the toothed polygonal prism 1 by a vertical plane.

Embodiment 2

[0039] This embodiment is a further optimization made on the basis of Embodiment 1. Specifically, the upper and / or lower serrated surfaces are provided with at least three odd-numbered serrations, preferably 3 or 5, such as Figure 7 shown.

[0040] Specifically, the serrated surface 102 includes an apex angle 1025 and an intersection angle 1026, the apex angle 1025 is 30-120°, the intersection angle 1026 is 30-120°, preferred values: an apex angle of 60° and an intersection angle of 60°.

[0041] Specifically, the vertex of the vertex 1025 is located on the same circumference as the vertex on the cross-section of the side plane 101 .

Embodiment 3

[0043] A method for manufacturing large-section glued laminated wood, comprising the following steps:

[0044] S1: wooden section preparation: first cut the small wooden diameter into 50cm long wooden section, then dry the wooden section to obtain a spare wooden section, the diameter of the small diameter wood is 5mm, the moisture content of the spare wooden section in the step S1 10%.

[0045] S2: Processing of toothed polygonal prism 1;

[0046] Using an alloy knife cutting saw equipment to process the spare wood section to obtain a toothed polygonal column 1;

[0047] S3: Processing of half-toothed polygonal prism 2;

[0048] Perform symmetrical sawing on the vertical planes of the two opposite side planes of the tooth-shaped polygonal prism 1 obtained in step S2 to obtain a half-toothed polygonal prism 2;

[0049] S4: Forming process: Process the two ends of the toothed multi-prism 1 into finger joints 3, apply glue on the finger joints 3 at the end of the toothed multi-p...

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Abstract

The invention discloses large-section laminated wood manufactured from undersized logs. The large-section laminated wood comprises a laminated wood body. The laminated wood body is a cuboid and is formed by carrying out combining and glue pressing on toothed polygon prisms and half toothed polygon prisms. Each toothed polygon prism comprises two parallel and opposite side planes with the same diameter length and two parallel and opposite serrated faces with the same diameter length. The invention further discloses a manufacturing method of the large-section laminated wood. The manufacturing method comprises the steps of preparation of short-cut wood, processing of the toothed polygon prisms, lengthening, after-treatment, processing of the half toothed polygon prisms, and assembling. Test analysis is carried out on the large-section laminated wood manufactured through the manufacturing method according to indexes such as impregnation peeling, the moisture content and formaldehyde emission, and the indexes of the large-section laminated wood all meet the national standards of Non-structural Glued Laminated Timber.

Description

technical field [0001] The invention relates to the field of wood processing, in particular to a large-section glued wood made of small-diameter wood and a manufacturing method thereof. Background technique [0002] In recent years, with the rapid development of my country's wood processing technology, a large amount of forestry resources have been consumed, resulting in a shortage of natural forest resources and a shortage of large-diameter high-quality wood, making small-diameter wood account for a relatively high proportion of the entire wood production and becoming an important source of wood supply. source. How to scientifically and rationally process small-diameter wood, improve the utilization rate of small-diameter wood, and produce high value-added products has become an urgent problem in wood processing and utilization. Under these conditions, how to use small-diameter logs to manufacture large-section glulam has become an emerging industry with a huge market space...

Claims

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Application Information

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IPC IPC(8): B27D1/10B27F1/16B27M3/00
CPCB27D1/10B27F1/16B27M3/0066B27M3/0086
Inventor 胡朕方精忠
Owner 江西兴创木业有限责任公司
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