CN113715437A - Laminated wood for modular structure and manufacturing method thereof - Google Patents

Laminated wood for modular structure and manufacturing method thereof Download PDF

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Publication number
CN113715437A
CN113715437A CN202111031246.1A CN202111031246A CN113715437A CN 113715437 A CN113715437 A CN 113715437A CN 202111031246 A CN202111031246 A CN 202111031246A CN 113715437 A CN113715437 A CN 113715437A
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CN
China
Prior art keywords
layer
base layer
laminated wood
layers
manufacturing
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Pending
Application number
CN202111031246.1A
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Chinese (zh)
Inventor
龚迎春
任海青
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Research Institute of Wood Industry of Chinese Academy of Forestry
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Research Institute of Wood Industry of Chinese Academy of Forestry
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Publication date
Application filed by Research Institute of Wood Industry of Chinese Academy of Forestry filed Critical Research Institute of Wood Industry of Chinese Academy of Forestry
Priority to CN202111031246.1A priority Critical patent/CN113715437A/en
Publication of CN113715437A publication Critical patent/CN113715437A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/14—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood board or veneer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/042—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/14—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a face layer formed of separate pieces of material which are juxtaposed side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/18—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by an internal layer formed of separate pieces of material which are juxtaposed side-by-side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)

Abstract

The invention discloses a laminated wood for a modular structure and a manufacturing method thereof, wherein the laminated wood comprises an upper base layer, a middle layer and a lower base layer which are mutually compounded, the middle layer comprises a plurality of laminated and compounded sawn timber layers, each sawn timber layer for compounding the middle layer is provided with a plurality of through holes which are mutually aligned, and the middle layer also comprises a wooden pin which is arranged in the through holes in a penetrating way.

Description

Laminated wood for modular structure and manufacturing method thereof
Technical Field
The invention relates to the field of building material production, in particular to a laminated wood for a modular structure and a manufacturing method thereof.
Background
The laminated wood product for the structure at present carries out the customization production according to the requirement of designer and architect, and the mill dares not to prepare material and stock to make the customization manufacturing cost too high, restrict the development of trade. Meanwhile, the price of the structural adhesive is higher, the cost of the structural laminated wood is increased due to the fact that the gluing process is adopted, and the risk that the durability of the product is unqualified exists.
Therefore, a need exists for a laminated wood and a manufacturing method thereof, which are durable and suitable for custom production.
Disclosure of Invention
The invention aims to: provided are a laminated material for a modular structure, which has good durability and is suitable for custom production, and a method for manufacturing the same.
The technical scheme of the invention is as follows: the utility model provides a modular is laminated wood for structure, includes upper base layer, intermediate level and lower base layer that compound each other is in the same place, upper base layer includes two at least compound saw material layers in the same place, lower base layer includes two at least compound saw material layers in the same place, the intermediate level includes a plurality of range upon range of compound saw material layers in the same place, is used for compound have a plurality of through-holes of mutually lining up on every saw material layer in intermediate level, the intermediate level still includes to wear to establish the dowel in the through-hole.
Preferably, the sawn timber layer is formed by finger-jointing a plurality of wood boards, and the through holes are arranged to avoid finger-jointing positions.
Preferably, the wooden pin is in interference fit with the through hole.
A manufacturing method of a laminated wood for a modular structure comprises the following steps:
1) compounding at least two upper sawn timber layers into an upper base layer, and manufacturing a plurality of upper base layers for later use;
2) compounding at least two lower sawn timber layers into an upper base layer, and manufacturing a plurality of lower base layers for later use;
3) selecting a proper number of sawn timber layers according to the requirement, and compounding into an intermediate layer;
4) respectively selecting the upper base layer in the step 1) and the lower base layer in the step 2), and compounding the upper base layer and the lower base layer on the upper surface and the lower surface of the middle layer to prepare the laminated wood.
Preferably, the sawn timber layer is punched with a through hole at the same position in the step 3), and a wooden pin which is in interference fit with the through hole is inserted when the sawn timber layer is compounded.
Further preferably, the diameter of the through hole is 5-15mm, and the diameter of the wooden pin is 0.3-0.8mm larger than that of the through hole.
Further preferably, the wooden pin is dried before entering the through hole, and the moisture content is 6-10%.
Preferably, the sawn timber layers are glued by cold pressing of one-component polyurethane.
Preferably, when the sawn timber layer of the middle layer exceeds 10 layers, the middle layer can be divided into two or more than two sub-layers in the step 3), and then the sub-layers are compounded with the upper base layer in the step 1) and the lower base layer in the step 2) at the same time, wherein each sub-layer comprises 5 to 7 sawn timber layers.
Preferably, the composite surface of the upper base layer, the lower base layer and the middle layer is polished and then compounded, and the time from the end of polishing to the beginning of compounding is not more than 24 hours.
The invention has the advantages that:
1. the laminated wood is formed by compounding the upper base layer, the middle layer and the lower base layer, and the sawn timber layer of the middle layer is arranged and fixed by the wooden pin, so that the durability of the middle layer is improved, and the risk of strength reduction of the laminated wood in long-term use is reduced.
2. The laminated wood is formed by compounding the upper base layer, the middle layer and the lower base layer, and the three parts are produced independently, wherein the upper base layer and the lower base layer can be universally used for laminated wood with different customization requirements, only the middle layer needs to be adjusted when different customization requirements are met, so that the cost can be saved, and the production efficiency can be greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
The invention is further described with reference to the following figures and examples:
FIG. 1 is an exploded view of the embodiment.
Wherein: 1. an upper base layer; 2. an intermediate layer; 21. a through hole; 22. a wood pin; 3. a lower base layer; a. a layer of sawing material.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
Example (b): the utility model provides a modular is laminated wood for structure, includes upper base layer 1, intermediate level 2 and lower base layer 3 that compound each other together, upper base layer 1 includes at least two compound sawn timber layers a together, lower base layer 3 includes at least two compound sawn timber layers a together, intermediate level 2 includes a plurality of range upon range of compound sawn timber layers a together, is used for compounding have a plurality of through-holes 21 that align each other on every sawn timber layer a in intermediate level 2, intermediate level 2 still includes wears to establish wooden round pin 22 in through-hole 21.
Referring to fig. 1, the upper base layer 1 is composed of two sawn timber layers a laminated together, the middle layer 2 is composed of three sawn timber layers a laminated together, the lower base layer 3 is composed of two sawn timber layers a laminated together, and a plurality of through holes are provided in the sawn timber layers a constituting the middle layer 2, and a wooden pin 22 is provided in each through hole 21. The wooden pin 22 can improve the durability of the intermediate layer 2, and reduce the risk of strength reduction of the laminated wood in long-term use
The sawn timber layer a of the embodiment is formed by finger-jointing a plurality of wood boards, the thickness of the wood boards for finger-jointing according to the relevant standards is 35mm, the width is 150mm, and the through holes 21 on the middle layer 2 need to be arranged avoiding finger-jointing positions so as not to influence the strength of the sawn timber layer a.
In order to enable the wooden pin 22 to be locked with the sawn timber layer a, the wooden pin 22 is in interference fit with the through hole 21 in the embodiment.
The manufacturing method of the modular structural laminated wood of the embodiment comprises the following steps:
1) compounding the two upper sawn timber layers a into an upper base layer 1, and manufacturing a plurality of upper base layers 1 for later use;
2) compounding two lower sawn timber layers a into an upper base layer 1, and manufacturing a plurality of lower base layers 3 for later use;
3) selecting three sawn timber layers a according to requirements, and punching through holes 21 at the same positions of the selected sawn timber layers a;
4) compounding the sawn timber layer a punched in the step 3) and putting a wooden pin 22 into the through hole 21 to compound the sawn timber layer a into the middle layer 2;
5) respectively selecting an upper base layer 1 in the step 1) and a lower base layer 3 in the step 2), and compounding the upper and lower surfaces of the middle layer 2 in the step 3) to prepare the laminated wood.
Generally, the diameter of the through-hole 21 is 5-15mm, and the diameter of the wooden pin 22 is 0.3-0.8mm larger than that of the through-hole 21. In this embodiment, the diameter of the through hole 21 is selected to be 10mm and the diameter of the wooden pin 22 is selected to be 10.5mm, depending on the size of the individual sawn timber layer a.
In order to ensure that the wooden pin 22 is in interference fit with the through hole 21, the wooden pin 22 is dried before entering the through hole 21, and the water content is 6-10%. In the embodiment, the water content of the wooden pin is controlled to be 8%, and the wooden pin starts to absorb water and expand after entering the through hole 21, so that the wooden pin can be locked with the through hole.
The sawn timber layer a is formed by finger joint of a plurality of wood boards, and the technological parameters are as follows: the tenon length is 15mm, the embedding degree is 0.1mm, and the end pressure is 11-17 MPa.
The compounding process used in this example was to cold-press the glued sawn timber layer a with a single component polyurethane. The concrete gluing process comprises the following steps: the cold pressing pressure is 1.0Mpa, the pressure maintaining time is 1.5h, and the glue application amount is 200g per square meter.
In other embodiments, when the number of sawn timber layers a of the intermediate layer 2 exceeds 10, the intermediate layer 2 may be divided into two or more sub-layers in step 3), and the sub-layers are simultaneously compounded with the upper base layer 1 in step 1) and the lower base layer 3 in step 2), wherein each sub-layer contains 5 to 7 sawn timber layers.
In order to ensure the composite strength, in the embodiment, the composite surfaces of the upper base layer 1, the lower base layer 3 and the middle layer 2 are polished and then compounded, and the time from finishing polishing to beginning compounding is not more than 24 hours.
Compared with the prior art, the embodiment has the following advantages:
1. the laminated wood of the embodiment is formed by compounding the upper base layer 1, the middle layer 2 and the lower base layer 3, and the sawn timber layer a of the middle layer 2 is provided with the wooden pin 22 for fixing, so that the durability of the middle layer 2 is improved, and the risk of strength reduction of the laminated wood in long-term use is reduced.
2. According to the laminated wood production method, the upper base layer 1, the middle layer 2 and the lower base layer 3 are compounded into the laminated wood, the three parts are produced independently, the upper base layer 1 and the lower base layer 3 can be used universally for laminated wood with different customization requirements, only the middle layer 2 needs to be adjusted when different customization requirements are met, the cost can be saved, and the production efficiency is greatly improved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a modular is laminated wood for structure, includes upper base layer, intermediate level and lower base layer that each other compound together, upper base layer includes two at least compound saw timber layers together, lower base layer includes two at least compound saw timber layers together, the intermediate level includes a plurality of range upon range of compound saw timber layers together, its characterized in that: each sawn timber layer for compounding the middle layer is provided with a plurality of through holes which are aligned with each other, and the middle layer also comprises a wooden pin which is arranged in the through holes in a penetrating mode.
2. The modular structural laminated wood according to claim 1, wherein: the sawn timber layer is formed by a plurality of plank finger joints, the through-hole avoids finger joint position setting.
3. The modular structural laminated wood according to claim 1, wherein: the wooden pin is in interference fit with the through hole.
4. A manufacturing method of a laminated wood for a modular structure is characterized by comprising the following steps:
1) compounding at least two upper sawn timber layers into an upper base layer, and manufacturing a plurality of upper base layers for later use;
2) compounding at least two lower sawn timber layers into an upper base layer, and manufacturing a plurality of lower base layers for later use;
3) selecting a proper number of sawn timber layers according to the requirement, and compounding into an intermediate layer;
4) respectively selecting the upper base layer in the step 1) and the lower base layer in the step 2), and compounding the upper base layer and the lower base layer on the upper surface and the lower surface of the middle layer to prepare the laminated wood.
5. The method for manufacturing a modular structural laminated wood according to claim 4, wherein the method comprises the following steps: and 3) drilling a through hole in the same position of the sawn timber layer in the step 3), and inserting a wooden pin in interference fit with the through hole during compounding.
6. The method for manufacturing a modular structural laminated wood according to claim 5, wherein the method comprises the following steps: wherein the diameter of the through hole is 5-15mm, and the diameter of the wooden pin is 0.3-0.8mm larger than that of the through hole.
7. The method for manufacturing a modular structural laminated wood according to claim 5, wherein the method comprises the following steps: the wooden pin is dried before entering the through hole, and the water content is 6-10%.
8. The method for manufacturing a modular structural laminated wood according to claim 4, wherein the method comprises the following steps: the sawn timber layer is glued through cold pressing of single-component polyurethane.
9. The method for manufacturing a modular structural laminated wood according to claim 4, wherein the method comprises the following steps: when the sawn timber layer of the middle layer exceeds 10 layers, the middle layer can be divided into two or more than two sub-layers in the step 3), and then the sub-layers are compounded with the upper base layer in the step 1) and the lower base layer in the step 2) at the same time, wherein each sub-layer comprises 5-7 sawn timber layers.
10. The method for manufacturing a modular structural laminated wood according to claim 4, wherein the method comprises the following steps: and (3) polishing the composite surfaces of the upper base layer, the lower base layer and the middle layer, and then compounding, wherein the time from the polishing to the beginning of compounding is not more than 24 hours.
CN202111031246.1A 2021-09-03 2021-09-03 Laminated wood for modular structure and manufacturing method thereof Pending CN113715437A (en)

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Application Number Priority Date Filing Date Title
CN202111031246.1A CN113715437A (en) 2021-09-03 2021-09-03 Laminated wood for modular structure and manufacturing method thereof

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639525A1 (en) * 1988-11-28 1990-06-01 Bodeving Raymond SOLID WOOD PLATE AND METHOD FOR MANUFACTURING THE SAME
JP2000153508A (en) * 1998-11-19 2000-06-06 Sumitomo Forestry Co Ltd Composite glued laminated wood
CN201833446U (en) * 2010-09-29 2011-05-18 杭州富丽来装饰材料有限公司 China fir plywood
WO2014068039A1 (en) * 2012-11-05 2014-05-08 Hans-Peter Leitinger Composite wood panel
CN203611322U (en) * 2013-12-03 2014-05-28 程天伟 Three-layer finger joint board
CN203994101U (en) * 2014-07-07 2014-12-10 连云港永益木业有限公司 Continuously shaped composite construction material
CN105235022A (en) * 2015-09-28 2016-01-13 中国林业科学研究院木材工业研究所 Bamboo-wood composite laminated timber for structure and manufacturing method thereof
CN106863495A (en) * 2017-02-14 2017-06-20 上海市建筑科学研究院 A kind of cemented bamboo wooden frame and its manufacture method
CN211868108U (en) * 2019-09-20 2020-11-06 中国林业科学研究院木材工业研究所 Complexing laminated wood

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2639525A1 (en) * 1988-11-28 1990-06-01 Bodeving Raymond SOLID WOOD PLATE AND METHOD FOR MANUFACTURING THE SAME
JP2000153508A (en) * 1998-11-19 2000-06-06 Sumitomo Forestry Co Ltd Composite glued laminated wood
CN201833446U (en) * 2010-09-29 2011-05-18 杭州富丽来装饰材料有限公司 China fir plywood
WO2014068039A1 (en) * 2012-11-05 2014-05-08 Hans-Peter Leitinger Composite wood panel
CN203611322U (en) * 2013-12-03 2014-05-28 程天伟 Three-layer finger joint board
CN203994101U (en) * 2014-07-07 2014-12-10 连云港永益木业有限公司 Continuously shaped composite construction material
CN105235022A (en) * 2015-09-28 2016-01-13 中国林业科学研究院木材工业研究所 Bamboo-wood composite laminated timber for structure and manufacturing method thereof
CN106863495A (en) * 2017-02-14 2017-06-20 上海市建筑科学研究院 A kind of cemented bamboo wooden frame and its manufacture method
CN211868108U (en) * 2019-09-20 2020-11-06 中国林业科学研究院木材工业研究所 Complexing laminated wood

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