CN218195774U

CN218195774U - Novel aldehyde-free plywood

Info

Publication number: CN218195774U
Application number: CN202222509513.8U
Authority: CN
Inventors: 何琪深; 何宜航; 何若希
Original assignee: Henan Hejia Wood Industry Co ltd
Current assignee: Henan Hejia Wood Industry Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-01-03
Anticipated expiration: 2032-09-22

Abstract

The utility model relates to a plywood technical field especially relates to a novel aldehyde-free plywood, including the bottom plate, the frame of the edge fixedly connected with rectangle of bottom plate upper surface, the outer wall of frame flushes with the side of bottom plate, is provided with roof and three intermediate lamella in the structure that frame and bottom plate enclose, and the side of roof and intermediate lamella all laminates with the inner wall activity of frame. The utility model discloses an at the bottom plate, the inclusion contains ferric bisulfite and urea in the plate body that roof and intermediate lamella are constituteed, the aqueous solution empiecement that contains the ammoniac compound, preparation artificial board, the free formaldehyde that artificial board gived off is got rid of as the remover to the aqueous solution empiecement in through the intermediate layer, reach the effect of removing aldehyde, sealed glue of frame cooperation makes the roof, the gap of bottom plate and intermediate lamella junction is etc. to sealed, thereby make the inside intermediate layer of whole board protected, the activity joint of board groove and intermediate lamella, the adhesive is difficult for spilling over the board seam when making the plate body suppression, make the adhesive keep in the interlayer of plate body.

Description

Novel aldehyde-free plywood

Technical Field

The utility model relates to a plywood technical field especially relates to a novel aldehyde-free plywood.

Background

The plywood is a three-layer or multi-layer plate material formed by rotationally cutting wood sections into single boards or slicing wood beams into thin wood and then gluing the single boards by using an adhesive, wherein the single boards are usually arranged at odd layers, and the fiber directions of the single boards at the adjacent layers are mutually vertical to glue the single boards;

the plywood is one of common furniture materials, is one of three large plates of an artificial plate, and can also be used as a material for airplanes, ships, trains, automobiles, buildings, packing boxes and the like. A group of veneers are typically assembled and glued perpendicular to each other in the direction of the adjacent layers of wood grain, and the skins and inner sheets are typically symmetrically disposed on either side of the center layer or core. The glued veneer is pressed into the wood grain board blank by the criss-cross matching of the glued veneer according to the wood grain direction under the condition of heating or not heating. The number of layers is generally odd, and a few are even. The difference of physical and mechanical properties in the longitudinal and transverse directions is small. Common types of plywood comprise three-ply boards, five-ply boards and the like, and the plywood can improve the utilization rate of wood and is a main way for saving the wood;

free formaldehyde can influence the personal health in the adhesive of each veneer of plywood adhesion, removes aldehyde through the mode of ventilation and needs a large amount of time to wait, and the plate body itself lacks effectual aldehyde ability that removes, consequently provides a novel no aldehyde plywood.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a novel aldehyde-free plywood.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a novel no aldehyde plywood, includes the bottom plate, the frame of the edge fixedly connected with rectangle of bottom plate upper surface, the outer wall of frame flushes with the side of bottom plate, be provided with roof and three intermediate lamella in the structure that frame and bottom plate enclose, the side of roof and intermediate lamella all laminates with the inner wall activity of frame.

As a preferred technical scheme of the utility model, the board groove has all been seted up to the bottom surface of roof and three intermediate lamella, the equal fixedly connected with intermediate lamella of upper surface of bottom plate and three intermediate lamella, the intermediate lamella can with board groove activity joint.

As a preferred technical scheme of the utility model, thickness after roof and the combination of three intermediate lamella is the same with the height of frame, every all be scribbled the adhesive around the grooved surface in board groove.

As a preferred technical scheme of the utility model, every the trough face mid portion of plate groove all fixes and is provided with the aqueous solution inserted piece, the aqueous solution inserted piece comprises iron bisulfite, urea and the water that contains the ammonia compound.

As an optimal technical scheme of the utility model, the inner wall of frame scribbles sealed glue, the outer wall of the face of carrying on the back of the body and frame of roof and bottom plate is the smooth surface.

As an optimized technical scheme of the utility model, the thickness of paining of adhesive is 0.01 ~ 0.05mm, the plate body that roof, bottom plate, frame and intermediate lamella adhesion become is sent into and is carried out chlorine and remove aldehyde in the vacuum chamber.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. the water solution splice piece containing ferric bisulfite, urea and ammonia compound is clamped in the plate body consisting of the bottom plate, the top plate and the middle plate to manufacture the artificial plate, the water solution splice piece in the interlayer is used as a remover to remove free formaldehyde emitted by the artificial plate, so that the effect of removing formaldehyde is achieved, and the frame is matched with sealant to seal the gaps at the joints of the top plate, the bottom plate and the middle plate, so that the interlayer in the whole plate is protected, and the plate body has the effect of removing formaldehyde.

2. The board groove is connected with the middle piece in a movable mode, so that the adhesive is not prone to overflowing from the board seam when the board body is pressed, the adhesive is kept in the interlayer in the board body, free formaldehyde in the adhesive is locked in the interlayer, and the formaldehyde removing effect is further achieved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the middle top plate of the present invention;

FIG. 3 is a schematic structural view of the middle bottom plate of the present invention;

fig. 4 is a schematic structural view of the middle plate of the present invention.

Wherein: 1. a base plate; 2. a top plate; 3. a middle plate; 4. a frame; 5. an intermediate sheet; 6. and (4) plate grooves.

Detailed Description

In order to make the technical means, creation features, achievement objects and functions of the present invention easy to understand, the present invention will be further explained with reference to the following embodiments, however, the following embodiments are only preferred embodiments of the present invention, and not all embodiments are included. Based on the embodiments in the embodiment, those skilled in the art can obtain other embodiments without making creative efforts, and all of them belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1, fig. 2, fig. 3 and fig. 4, a novel formaldehyde-free plywood comprises a bottom plate 1, a rectangular frame 4 is fixedly connected to the edge of the upper surface of the bottom plate 1, the outer wall of the frame 4 is flush with the side surface of the bottom plate 1, a top plate 2 and three intermediate plates 3 are arranged in a structure enclosed by the frame 4 and the bottom plate 1, an aqueous solution insert containing ferric bisulfite, urea and ammonia compound is clamped in a plate body formed by the bottom plate 1, the top plate 2 and the intermediate plates 3 to manufacture an artificial board, free formaldehyde emitted from the artificial board is removed by taking the aqueous solution insert in the interlayer as a remover to achieve the effect of removing formaldehyde, the fiber directions of the adjacent single plates are mutually vertical in the plate body formed by the top plate 2, the bottom plate 1 and the three intermediate plates 3, the frame 4 is matched with a sealant to enable gaps at the joints of the top plate 2, the bottom plate 1 and the intermediate plates 3 to be sealed, the interlayer in the whole plate is protected, the plate grooves 6 are movably clamped with the middle sheet 5, so that an adhesive is not easy to overflow a plate seam when the plate is pressed, the adhesive is kept in the interlayer in the plate, free formaldehyde in the adhesive is locked in the interlayer, the effect of removing formaldehyde is further achieved, the side surfaces of the top plate 2 and the middle plate 3 are movably attached to the inner wall of the frame 4, the plate grooves 6 are formed in the bottom surfaces of the top plate 2 and the three middle plates 3, the middle sheets 5 are fixedly connected to the upper surfaces of the bottom plate 1 and the three middle plates 3, the middle sheets 5 can be movably clamped with the plate grooves 6, the thickness of the top plate 2 and the three middle plates 3 after combination is the same as the height of the frame 4, the adhesive is coated around the groove surface of each plate groove 6, and the middle part of the groove surface of each plate groove 6 is fixedly provided with an aqueous solution embedded piece, the aqueous solution splice piece is composed of ferric bisulfite, urea and water containing an ammonia compound;

the inner wall of frame 4 scribbles sealed glue, the back of the body face of leaving of roof 2 and bottom plate 1 and the outer wall of frame 4 are the smooth surface, the thickness of paining of adhesive is 0.01 ~ 0.05mm, the plate body that roof 2, bottom plate 1, frame 4 and intermediate lamella 3 adhesion become is sent into and is carried out chlorine and removes aldehyde in the vacuum chamber.

The working principle is as follows: at bottom plate 1, the clamp contains ferric bisulfite and urea in the plate body that roof 2 and intermediate lamella 3 are constituteed, the aqueous solution empiecement that contains the ammonia compound, preparation artificial board, get rid of the free formaldehyde that artificial board gived off as the remover through the aqueous solution empiecement in the intermediate layer, reach the effect of removing the aldehyde, frame 4 cooperation is sealed glues and is made roof 2, the gap of bottom plate 1 and intermediate lamella 3 junction waits to be sealed, thereby make the inside intermediate layer of whole board protected, the activity joint of board groove 6 and intermediate lamella 5, make the adhesive be difficult for overflowing the board seam when the plate body is pressed, make the adhesive keep in the intermediate layer in the plate body, thereby lock the free formaldehyde in the adhesive in the intermediate layer, further reach the effect of removing the aldehyde.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. The novel formaldehyde-free plywood comprises a bottom plate (1) and is characterized in that a rectangular frame (4) is fixedly connected to the edge of the upper surface of the bottom plate (1), the outer wall of the frame (4) is flush with the side surface of the bottom plate (1), and a top plate (2) and three middle plates (3) are arranged in a structure enclosed by the frame (4) and the bottom plate (1);

the side surfaces of the top plate (2) and the middle plate (3) are movably attached to the inner wall of the frame (4).

2. The novel formaldehyde-free plywood as claimed in claim 1, wherein slab grooves (6) are formed in the bottom surfaces of the top slab (2) and the three intermediate slabs (3), intermediate slabs (5) are fixedly connected to the upper surfaces of the bottom slab (1) and the three intermediate slabs (3), and the intermediate slabs (5) can be movably clamped with the slab grooves (6).

3. The new formaldehyde-free plywood as claimed in claim 2, wherein the thickness of the combination of said top board (2) and three middle boards (3) is the same as the height of the side frame (4), and the periphery of the groove surface of each of said board grooves (6) is coated with adhesive.

4. The new formaldehyde-free plywood according to claim 3, wherein a water solution veneer composed of iron bisulfite, urea and water containing ammonia compound is fixedly arranged at the groove surface middle part of each board groove (6).

5. The novel aldehyde-free plywood as claimed in claim 4, wherein the inner walls of the frames (4) are coated with sealant, and the opposite surfaces of the top plate (2) and the bottom plate (1) and the outer walls of the frames (4) are smooth surfaces.

6. The novel aldehyde-free plywood as claimed in claim 5, wherein the thickness of the adhesive applied is 0.01-0.05 mm, and the board body formed by bonding the top board (2), the bottom board (1), the frame (4) and the middle board (3) is sent into a vacuum chamber for removing aldehyde by chlorine.