CN218928094U

CN218928094U - Aldehyde-free reinforced LVL laminated veneer lumber

Info

Publication number: CN218928094U
Application number: CN202223181880.6U
Authority: CN
Inventors: 张凯; 刘洪方; 韩建超; 葛志国; 葛春艳
Original assignee: Jiangsu Fuqing Wood Industry Co ltd
Current assignee: Jiangsu Fuqing Wood Industry Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-04-28
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses an aldehyde-free reinforced LVL laminated veneer lumber, which comprises the following components: the formaldehyde adsorption filter comprises a first single plate, a second single plate, a third single plate, reinforcing pins and formaldehyde adsorption filter particles, wherein the first single plate, the second single plate and the third single plate are sequentially overlapped up and down, a first formaldehyde-free adhesive layer is arranged between the first single plate and the second single plate, a second formaldehyde-free adhesive layer is arranged between the second single plate and the third single plate, a plurality of pin holes which downwards extend into the third single plate and correspond to the reinforcing pins are formed in the first single plate, the reinforcing pins are arranged in the pin holes, through holes which axially extend are formed in the reinforcing pins in a penetrating mode, and the formaldehyde adsorption filter particles are arranged in the through holes. The formaldehyde-free reinforced LVL laminated veneer lumber disclosed by the utility model has the advantages that the structural integrity and the compressive strength are improved, the glue consumption is reduced, and the formaldehyde is utilized to adsorb filter particles and air holes for internal air filtration, so that the environmental protection performance is further improved.

Description

Aldehyde-free reinforced LVL laminated veneer lumber

Technical Field

The utility model relates to the technical field of LVL laminated veneer lumber, in particular to an aldehyde-free reinforced LVL laminated veneer lumber.

Background

The LVL laminated veneer lumber is formed by laminating a plurality of thick veneers along the grain direction and hot-pressing and gluing, has stable structure, and can improve the material utilization rate of the thick veneers compared with solid wood, so the LVL laminated veneer lumber has lower cost and wider use.

In order to improve the environmental protection performance of the LVL laminated veneer lumber, in the production process, the glue consumption can be reduced or the aldehyde-free glue is adopted to carry out hot-press gluing of the thick veneer, the cost of the aldehyde-free glue is high, the stability of the structure is easily affected by the glue consumption, the structure is not lost, and the improvement is needed.

Disclosure of Invention

The utility model aims to provide an aldehyde-free reinforced LVL laminated veneer lumber, which reduces the glue consumption and improves the environmental protection performance and the structural strength.

To achieve the purpose, the utility model adopts the following technical scheme:

an aldehyde-free reinforced LVL laminated veneer lumber, comprising: the formaldehyde adsorption filter comprises a first single plate, a second single plate, a third single plate, reinforcing pins and formaldehyde adsorption filter particles, wherein the first single plate, the second single plate and the third single plate are sequentially overlapped up and down, a first formaldehyde-free adhesive layer is arranged between the first single plate and the second single plate, a second formaldehyde-free adhesive layer is arranged between the second single plate and the third single plate, a plurality of pin holes which downwards extend into the third single plate and correspond to the reinforcing pins are arranged on the first single plate, the reinforcing pins are arranged in the pin holes, through holes which axially extend are formed in the reinforcing pins in a penetrating mode, and the formaldehyde adsorption filter particles are arranged in the through holes, and air holes which are communicated with the through holes and correspond to the first single plate, the second single plate and the third single plate respectively are formed in the outer wall of the reinforcing pins.

Wherein, the top and the bottom of the through hole are respectively provided with a wooden plug.

Wherein, the particle diameter of the formaldehyde adsorption filtration particles is larger than the diameter of the air holes.

Wherein, the formaldehyde adsorption filtration particles adopt activated carbon filtration particles.

The top of the first veneer is provided with a third aldehyde-free adhesive layer, and a first wood grain paper layer is arranged above the third aldehyde-free adhesive layer.

The bottom of the third veneer is provided with a fourth aldehyde-free adhesive layer, and a second wood grain paper layer is arranged below the fourth aldehyde-free adhesive layer.

The utility model has the beneficial effects that: the utility model provides a no aldehyde level reinforcing LVL laminated veneer lumber carries out the hot pressing veneer of first veneer, second veneer and third veneer through first no aldehyde glue film and second no aldehyde glue film, and the feature of environmental protection is good, through reinforcing round pin post pre-buried in the pinhole, has promoted the wholeness of structure, compressive strength is high, upper and lower floor is difficult for the fracture, structural stability is high, is favorable to reducing the thickness and the volume of glue of first no aldehyde glue film and second no aldehyde glue film, further promotes environmental protection performance, and utilize formaldehyde to adsorb filter particle and gas pocket and carry out inside air filtration, adsorb harmful gas in the LVL laminated veneer lumber, avoid harmful gas at indoor release, further promote no aldehyde effect.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a partial enlarged view of a portion a in fig. 1.

Detailed Description

The following describes the technical solution of the present utility model further by means of specific embodiments with reference to fig. 1-2.

The aldehyde-free reinforced LVL laminated veneer lumber shown in fig. 1 and 2, comprising: the first veneer 1, the second veneer 2, the third veneer 3, the reinforcing pin 10 and the formaldehyde adsorption filter particles 12, the first veneer 1, the second veneer 2 and the third veneer 3 are sequentially overlapped up and down, in the embodiment, a first formaldehyde-free adhesive layer 7 is arranged between the first veneer 1 and the second veneer 2, a second formaldehyde-free adhesive layer 8 is arranged between the second veneer 2 and the third veneer 3, and formaldehyde-free adhesives are respectively adopted for the first formaldehyde-free adhesive layer 7 and the second formaldehyde-free adhesive layer 8, so that the environment-friendly effect is good.

In order to improve the aesthetic property of the structure, a third aldehyde-free adhesive layer 9 is arranged at the top of the first veneer 1, and a first wood grain paper layer 6 is arranged above the third aldehyde-free adhesive layer to decorate the top surface. The bottom of the third veneer 3 is provided with a fourth aldehyde-free adhesive layer 5, a second wood grain paper layer 4 is arranged below the fourth aldehyde-free adhesive layer 5, decoration of the bottom surface is carried out, and the defect problem is reduced.

As shown in fig. 2, the first single plate 1 is provided with a plurality of pin holes 14 extending downward into the third single plate 3 and corresponding to the reinforcing pins 10, and in this embodiment, the pin holes 14 are distributed in a rectangular array, so that uniformity is good. The reinforcing pin 10 is arranged in the pin hole 14, and the reinforcing pin 10 is in interference fit with the pin hole 14, so that the structural stability is improved, and falling is avoided.

The reinforcing pin 10 can be made of steel, and has high compressive strength, so that the structures of the first veneer 1, the second veneer 2 and the third veneer 3 are more stable, the thickness and the glue consumption of the first formaldehyde-free glue layer 7 and the second formaldehyde-free glue layer 8 are reduced, and the environmental protection performance is further improved. Conversely, the reinforcing pin 10 can be further fixed through the first aldehyde-free adhesive layer 7 and the second aldehyde-free adhesive layer 8, so that the structure is enhanced in a three-dimensional manner.

Through-holes extending along the axial direction are penetrated and arranged in the reinforcing pin 10, formaldehyde adsorption and filtration particles 12 are arranged in the through-holes, in the embodiment, wood plugs 11 are respectively arranged at the top and the bottom of the through-holes, so that falling of the formaldehyde adsorption and filtration particles 12 is avoided, and the structure is stable.

As shown in fig. 1, the outer wall of the reinforcing pin 10 is provided with air holes 13 which are communicated with the through holes and respectively correspond to the first single plate 1, the second single plate 2 and the third single plate 3, and the particle size of the formaldehyde adsorption and filtration particles 12 is larger than the diameter of the air holes 13, so that the slow circulation of air can be allowed, and the falling of the formaldehyde adsorption and filtration particles 12 can be avoided. In this embodiment, the formaldehyde adsorption and filtration particles 12 are activated carbon filtration particles, so that adsorption and filtration of formaldehyde and other harmful gases in the air can be performed, and the environmental protection performance of the LVL laminated veneer lumber is further improved.

The foregoing is merely exemplary of the present utility model, and those skilled in the art should not be considered as limiting the utility model, since modifications may be made in the specific embodiments and application scope of the utility model in light of the teachings of the present utility model.

Claims

1. The formaldehyde-free reinforced LVL laminated veneer lumber is characterized by comprising: the formaldehyde adsorption filter comprises a first single plate, a second single plate, a third single plate, reinforcing pins and formaldehyde adsorption filter particles, wherein the first single plate, the second single plate and the third single plate are sequentially overlapped up and down, a first formaldehyde-free adhesive layer is arranged between the first single plate and the second single plate, a second formaldehyde-free adhesive layer is arranged between the second single plate and the third single plate, a plurality of pin holes which downwards extend into the third single plate and correspond to the reinforcing pins are arranged on the first single plate, the reinforcing pins are arranged in the pin holes, through holes which axially extend are formed in the reinforcing pins in a penetrating mode, and the formaldehyde adsorption filter particles are arranged in the through holes, and air holes which are communicated with the through holes and correspond to the first single plate, the second single plate and the third single plate respectively are formed in the outer wall of the reinforcing pins.

2. The formaldehyde-free reinforced LVL laminated veneer lumber of claim 1, wherein wood plugs are respectively arranged at the top and the bottom of the through hole.

3. The formaldehyde-free reinforced LVL laminated veneer lumber of claim 1, wherein the formaldehyde-adsorbing filter particles have a particle size greater than a diameter of the pores.

4. The formaldehyde-free reinforced LVL laminated veneer lumber of claim 1, wherein the formaldehyde-adsorbing filter particles are activated carbon filter particles.

5. The formaldehyde-free reinforced LVL laminated veneer lumber of claim 1, wherein a third formaldehyde-free glue layer is disposed on top of the first veneer, and a first wood grain paper layer is disposed above the third formaldehyde-free glue layer.

6. The formaldehyde-free reinforced LVL laminated veneer lumber of claim 1, wherein a fourth formaldehyde-free glue layer is disposed at the bottom of the third veneer, and a second wood grain paper layer is disposed below the fourth formaldehyde-free glue layer.