CN218857866U - Perforated sound-absorbing fiber board - Google Patents

Abstract

The utility model relates to an architectural decoration construction field especially relates to a perforation sound absorption fiberboard. The first microporous fiberboard, the wood sound-absorbing material, the second microporous fiberboard and the sound-absorbing thin felt are sequentially arranged from top to bottom. Wherein, the four layers of materials are provided with edge sealing plates at the periphery. The utility model discloses the ultra-thin fibreboard of micropore that uses thickness < 1.5mm replaces melamine impregnated bond paper wainscot can provide excellent surface performance, and the specially adapted wood-based plate surface decoration processing has good application prospect replacing impregnated bond paper veneer field. Meanwhile, the high-value utilization of the artificial board industry in China is promoted. The utility model discloses still use multiple sound absorbing material combination and adopt the technology of both sides banding, solved the impregnated paper surface easy cracking, the application difficult problem that collapses the limit, have that the material is even, vertical and horizontal intensity degree is little, difficult fracture, stable performance and the firm advantage in edge.

Description

Perforated sound-absorbing fiber board

Technical Field

The utility model relates to an architectural decoration construction field especially relates to a perforation sound absorption fiberboard.

Background

With the improvement of quality of life and the enhancement of environmental awareness, people have an increasing demand for reducing environmental noise, and in large and medium-sized cities with dense population and developed economy, noise pollution becomes a problem of great concern in environmental governance. A large number of sound absorbing materials are used in movie theaters, music halls, reporting halls, meeting rooms and other places. The sound absorbing material has been changed from a single sound absorbing function in the past to a multi-function sound absorbing and decorating function.

The fiber board is produced by pressing cellulose under the action of adhesive at high temperature and high pressure, and the raw materials of the fiber board are fine fiber, sawdust, sanding dust and the like, and the upper surface layer and the lower surface layer of the fiber board are more compact and solid relative to the core layer. The fiberboard has sound absorption performance and good decorative effect, and is often considered to be the priority when the fiberboard is used as a noise reduction material in high-grade fields such as concert halls and opera halls. The research shows that the sound absorption capability of the wood sound absorption material is represented by that a fiberboard is larger than a plywood is larger than a flakeboard is larger than solid wood. The wood sound-absorbing material is developed rapidly, wherein the wood perforated sound-absorbing board, the cement wood wool board, the light fiber board and the like are the wood sound-absorbing materials which are commonly used at present.

The wood perforated sound-absorbing board is divided into two types of a perforated wood sound-absorbing board and a grooved wood sound-absorbing board. The perforated wood sound-absorbing board is a resonance sound-absorbing material with holes on the front and back surfaces of an artificial board, and the holes on the surface comprise round holes, narrow-strip holes, micropores and the like. Wherein, the aperture of the micropore is less than 0.8mm, the minimum can reach 0.02mm, and the perforation rate is improved by adjusting the density degree of the pore, so that the sound absorption performance of the sound absorption plate can be changed. The groove wood sound-absorbing board is a resonance sound-absorbing material with grooves on the front surface and holes on the back surface of the artificial board. The wood perforated sound-absorbing board has wider sound-absorbing frequency band and strongest sound-absorbing capability to medium frequency.

In some buildings with higher requirements for interior decoration, a wood perforated sound-absorbing board is used, and the board is made of a medium-density fiberboard as a core material, melamine veneers are adopted, grooves are formed in the front surface, holes are drilled in the back surface, and a strip-shaped perforated decorative sound-absorbing board with a novel and unique surface is manufactured. The sound-absorbing board obtains the required sound-absorbing frequency characteristic by changing the perforation rate, the cavity size and the filling material of the board, has beautiful surface, and is mainly used for engineering decoration with acoustic design requirements of gymnasiums, music halls, movie theaters, multifunctional halls, broadcast recording rooms, court houses, trial halls and the like. However, many problems are caused in the using process, and the existing wood perforated sound-absorbing board is easy to crack, easy to break edges and poor in covering property.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a perforation sound absorption fiberboard to the wooden perforation sound absorption board face of proposing easily has the crackle among the solution above-mentioned background art, easily collapses the limit and covers the poor problem of nature.

In order to solve the technical problem, the utility model provides a following technical scheme:

a perforated acoustical fiber board comprising:

the first microporous fiberboard, the wooden sound-absorbing material, the second microporous fiberboard and the sound-absorbing thin felt are arranged from top to bottom in sequence.

Furthermore, the thickness of the first microporous fiber board and the second microporous fiber board is less than 1.5mm.

The micropore fiberboard is not too thick, so that the phenomenon that sound is reflected by the too thick micropore fiberboard to cause the reduction of sound absorption effect is avoided.

Further, the first microporous fiber board and the second microporous fiber board are all wood fiber high-density fiber boards.

Furthermore, the wood sound-absorbing material is a medium density fiberboard drilled with a plurality of pores, and the pores are round holes and micropores.

Furthermore, the arrangement mode of the pores is that the circular holes and the micropores are arranged at intervals. The required sound absorption frequency is obtained and the noise is absorbed by changing different array arrangements or setting different sizes of pores.

Further, the thickness of the wood sound absorption material is 12-18mm.

Further, the thickness of the sound-absorbing thin felt is 10-15mm.

Further, the perforated sound-absorbing fiber board further comprises edge sealing boards, and the edge sealing boards are arranged on four sides of the perforated sound-absorbing fiber board. The wooden sound-absorbing material is coated, so that the loss of the wooden sound-absorbing material in the using process is reduced.

Further, the edge sealing board is a medium-density fiberboard.

Furthermore, the microporous fiberboard is attached to the front and the back of the wood sound-absorbing material through hot pressing; the microporous fiber board on the front surface is used for surface carving processing or section decorative lines. Through hot pressing laminating technique, will the microporous fiber board with wood system sound absorbing material laminating is in the same place, avoids using binders such as glue for panel environmental protection more.

Further, the second microporous fiber plate and the sound-absorbing thin felt are combined together through an environment-friendly adhesive. Water-based acrylic pressure-sensitive adhesive

Furthermore, the sound-absorbing thin felt has a certain sound-absorbing function.

Furthermore, the edge sealing plates are arranged on the edges of the two sides of the fiber board through a hot-pressing laminating process.

The beneficial effects of the utility model are as follows:

1. the utility model discloses use the ultra-thin fibreboard of micropore that thickness < 1.5mm to replace melamine impregnated bond paper wainscot can provide excellent surface property, and the specially adapted wood-based plate surface decoration processing has good application prospect replacing impregnated paper veneer field. Meanwhile, the high-value utilization of the artificial board industry in China is promoted.

2. The utility model discloses use multiple sound absorbing material combination and adopt the technology of both sides banding, solved the impregnated paper surface and easily cracked, the applied difficult problem of collapsing the limit, have that the material is even, the intensity degree is little, difficult fracture, stable performance and the firm advantage in edge with great ease.

3. The utility model discloses an use and paste the technique through the hot pressing, with the laminating of microporous fiberboard and wood system sound absorbing material, do not use the binder, avoid the release problem of noxious material such as formaldehyde in the follow-up use of panel.

4. The utility model discloses a set up the different array and arrange or the hole of variation in size, adjust inhaling the tone frequency according to the scene of difference.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

FIG. 1 is a schematic structural view of the perforated sound-absorbing fiberboard of the present invention;

FIG. 2 is a layout of the pores of the sound-absorbing wooden material according to the present invention;

in the figure:

1. a first microporous fiberboard; 2. a wood sound absorbing material; 3. a second microporous fiberboard; 4. a sound absorbing mat; 5. edge sealing plates; 6. a circular hole; 7. and (4) micro-pores.

Detailed Description

The present invention will be understood from the following description with reference to examples.

In one embodiment, as shown in fig. 1-2, a perforated acoustical fiber sheet includes:

the sound-absorbing board comprises a first microporous fiberboard 1, a wood sound-absorbing material 2, a second microporous fiberboard 3, a sound-absorbing thin felt 4 and a sealing board 5.

It will be appreciated that the first 1 and second 3 microporous fibreboards are 1mm thick.

It will be appreciated that the first 1 and second 3 microcellular fiberboards are high density fiberboards of all pine fiber.

It is understood that the wood-based sound-absorbing material 2 is a medium density fiberboard drilled with a plurality of pores, which are round holes and micropores.

It will be appreciated that the apertures are arranged in spaced relation between each row of circular holes 6 and micro holes 7. The required sound absorption frequency is obtained by changing different array arrangements or setting different sizes of pores, and noise is absorbed.

It is understood that the thickness of the wood-based sound-absorbing material 2 is 15mm.

It will be appreciated that the thickness of the acoustic mat 4 is 13mm.

It will be appreciated that the perforated sound absorbing panel also includes edge banding panels 5, the edge banding panels 5 being disposed on the four sides of the perforated sound absorbing fiberboard. The sound absorption material is coated, so that the loss of the sound absorption material in the using process is reduced.

It will be appreciated that the edge banding panel 5 is a medium density fiberboard.

As can be understood, the first microporous fiberboard 1 is attached to the front surface of the wood sound-absorbing material 2 by hot pressing; the decorative line can be used for surface carving processing or section decoration; the second microporous fiber sheet 3 is attached to the back surface of the wood sound-absorbing material 2 by hot pressing. Through hot pressing laminating technique, will the microporous fiber board with wood system sound absorbing material laminating is in the same place, avoids using binders such as glue for panel environmental protection more.

It will be appreciated that the sound absorbing mat 4 is coated with a water-based acrylic pressure sensitive adhesive and adhered to the second microporous fiber sheet 3.

It will be appreciated that the sound absorbing mat 4 has a certain sound absorbing function.

It can be understood that the edge sealing plates 5 are arranged on two side edges of the fiberboard through a hot-press laminating process.

It can be understood, in process of production, at first place wooden acoustic absorbent 2 on the equipment is pasted in the hot pressing, place first microporous fiberboard 1 on wooden acoustic absorbent 2, use the equipment of pasting in the hot pressing to carry out the hot pressing laminating for wooden acoustic absorbent 2 combines together with first microporous fiberboard 1, turns over whole panel, repeats above-mentioned step, laminates 3 hot pressing of second microporous fiberboard on wooden acoustic absorbent 2's another side. Then, uniformly coating an environment-friendly adhesive, namely a water-based acrylic pressure-sensitive adhesive on the sound-absorbing thin felt 4, and adhering the second microporous fiberboard 3; and then, hot-pressing and attaching the four edges of the combined four layers of materials to the 4 edge sealing plates 5 by using hot-pressing and attaching equipment.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (7)

1. The utility model provides a perforation sound absorption fiberboard which characterized in that: the method comprises the following steps from top to bottom: the sound-absorbing board comprises a first microporous fiberboard (1), a wood sound-absorbing material (2), a second microporous fiberboard (3) and a sound-absorbing thin felt (4); the sound-absorbing fiber board is characterized by further comprising edge sealing plates (5), wherein the edge sealing plates (5) are arranged on four sides of the perforated sound-absorbing fiber board;

the thickness of the first microporous fiber plate (1) and the second microporous fiber plate (3) is less than 1.5mm.

2. The perforated sound absorbing fiberboard of claim 1, wherein: the first microporous fiber board (1) and the second microporous fiber board (3) are all-wood fiber high-density fiber boards.

3. The perforated sound absorbing fiberboard of claim 1, wherein: the wood sound-absorbing material (2) is a medium-density fiberboard drilled with a plurality of pores, and the pores are round holes (6) and micropores (7).

4. The perforated sound absorbing fiberboard of claim 3, wherein: the arrangement mode of the pores is that the round holes (6) and the micropores (7) are arranged at intervals.

5. The perforated sound absorbing fiberboard of claim 1, wherein: the thickness of the wood sound absorption material (2) is 12-18mm.

6. The perforated sound absorbing fiberboard of claim 1, wherein: the thickness of the sound-absorbing thin felt (4) is 10-15mm.

7. The perforated sound absorbing fiberboard of claim 1, wherein: the edge sealing plate (5) is a medium-density fiberboard.

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