CN111779222A - Floor block and manufacturing method thereof - Google Patents

Abstract

The application relates to a floor block and a method for manufacturing the same, the floor block comprises: the corrugated substrate is attached to and fixed on the panel on the upper surface of the corrugated substrate; the corrugated substrate includes: the corrugated core layer is bonded and fixed on the upper plate body on the upper surface of the corrugated core layer through a thermosetting adhesive, and is bonded and fixed on the lower plate body on the lower surface of the corrugated core layer through the thermosetting adhesive; the panel is adhesively secured to the upper surface of the upper panel body by a thermosetting or hot melt adhesive. This application makes the floor block really have the resistance to compression and the shock resistance of wear-resisting and aesthetic property and below corrugated substrate of top panel concurrently to promote the preparation efficiency of floor block, make floor block can large-scale industrial production.

Description

Floor block and manufacturing method thereof

Technical Field

The application relates to the field of floors, in particular to a floor block and a manufacturing method thereof.

Background

Chinese utility model patent No. CN201320285556.0 discloses a floor board with corrugated structure. Although such floor boards are provided with a corrugated structure, the corrugated structure does not directly support the wood panels of the upper and lower layers, and the panels of the upper and lower layers are supported by the reinforcing ribs bonded to the middle, and the corrugated structure in the middle exerts a supporting function in the thickness direction only after the panels are largely bent and deformed. This requires that the panels of the upper and lower layers must have good bending deformation capability, otherwise the problem of panel fracture is likely to occur.

Moreover, the aforesaid chinese utility model patent floor block does not directly utilize the structure of ripe corrugated sheet, but arranges the simple flute structure between the two panels as a filling structure, and its structure is complicated, and the preparation technology is loaded down with trivial details moreover.

Some known corrugated boards are composed of an upper board body and a lower board body which are arranged at intervals, and a corrugated medium layer which is adhesively fixed between the upper board body and the lower board body. The corrugated core layer in the middle of the corrugated board is tightly bonded with the upper board body and the lower board body to form a whole, and the corrugated board has good compressive strength and bending strength in a specific direction. The applicant thought that the corrugated board with such a structure is used as a base board (the idea is not disclosed before the present application), and a face board made of marble, ceramic tile or wood board is adhered and fixed on the base board, so that the wear resistance and the aesthetic property of the marble, ceramic tile or wood board and the compression resistance and the bending resistance of the corrugated board are combined.

The following problems may occur if the conventional adhesive and the conventional method are used to bond the face sheet and the corrugated substrate:

1. conventional adhesives applied between the face sheet and the corrugated substrate, after curing, typically form a layer of adhesive with larger or smaller, more or less, grooves and holes, the layer of adhesive being neither continuous nor dense. Many parts of the upper panel and the lower corrugated base plate are in a hollow structure, and when the part of the upper panel is impacted downwards, large noise is generated and the upper panel is easy to damage.

2. Conventional adhesives require a large area of exposure to the environment for rapid curing, and must be applied between the face sheet and the corrugated substrate before curing in order to ensure the bonding strength of the face sheet to the corrugated substrate. However, the panels and corrugated substrates are solid structures and have poor air permeability, which results in very long curing time of the adhesive, and thus the production efficiency of the composite floor boards is low, which is not suitable for large-scale industrial production.

In this regard, the applicant originally conceived of bonding its panels and corrugated substrates with a thermosetting or hot melt adhesive that cures at a fast rate and with great controllability. However, the bonding process using thermosetting or hot melt adhesive requires high temperature, and the structural layers of the existing corrugated board are bonded together by hot melt adhesive (hot melt adhesive film) which cannot withstand high temperature, and if the panel and the corrugated board are bonded by thermosetting or hot melt adhesive, the corrugated board is disassembled at high temperature.

Disclosure of Invention

The technical problem that this application will solve is: the floor block and the manufacturing method thereof are provided, so that the floor block has the wear resistance and the aesthetic property of an upper panel and the compression resistance and the shock resistance of a lower corrugated substrate, the manufacturing efficiency of the floor block is improved, and the floor block can be industrially produced on a large scale.

The technical scheme of the application is as follows:

a flooring block comprising:

corrugated substrate, and

a panel attached to the upper surface of the corrugated board;

the corrugated substrate includes:

a corrugated medium layer is arranged on the corrugated medium layer,

an upper plate body adhesively fixed to an upper surface of the corrugated core layer by a thermosetting adhesive, an

The lower plate body is bonded and fixed on the lower surface of the corrugated medium layer through a thermosetting adhesive;

the panel is adhesively secured to the upper surface of the upper panel body by a thermosetting or hot melt adhesive.

On the basis of the technical scheme, the application also comprises the following preferable scheme:

the flooring sheets, the adhesive used to bond the face sheet to the corrugated substrate forms a continuous dense adhesive layer between the face sheet and the corrugated substrate.

The panel and the corrugated substrate are fixedly bonded by a hot melt adhesive film clamped between the panel and the corrugated substrate.

The corrugated core layer is a metal corrugation, and the upper plate body and the lower plate body are metal plates.

The corrugated core layer is made of high-temperature-resistant plastic.

The panel is a marble plate, a tile plate, a wood plate or a plastic plate.

The corrugated substrate is a rectangular plate, the corrugated core layer is a wavy structure comprising a plurality of wave crests and a plurality of wave troughs which are alternately arranged along the width direction of the corrugated substrate, the plurality of wave crests are fixedly bonded with the upper plate body, and the plurality of wave troughs are fixedly bonded with the lower plate body.

And a floor buckle embedding gap positioned around the corrugated core layer is formed between the upper plate body and the lower plate body, and a floor buckle welded or fixedly bonded with the upper plate body or/and the lower plate body is embedded in the floor buckle embedding gap.

The floor buckle is provided with a panel positioning bulge which is higher than the upper surface of the upper plate body and is mutually abutted with the side edge of the panel in the horizontal direction.

A first method of making the floor panel, comprising:

coating a liquid thermosetting adhesive on the upper surface of a lower plate body and the lower surface of an upper plate body, arranging a corrugated core layer between the lower plate body and the upper plate body, applying a clamping force to the lower plate body and the upper plate body to approach each other to press the corrugated core layer, and applying a high temperature to cure the thermosetting adhesive, thereby fixedly connecting the lower plate body, the upper plate body and the corrugated core layer;

applying a thermosetting adhesive to a lower surface of a panel or/and an upper surface of the upper plate body, placing the panel against the upper surface of the upper plate body, and applying a downward pressure to the panel;

the lower surface of the lower plate body is attached to a heating plate, heat generated by the heating plate sequentially passes through the lower plate body, the corrugated core layer and the upper plate body to be transmitted to the panel and the thermosetting adhesive between the upper plate bodies, and the thermosetting adhesive between the panel and the upper plate bodies is cured at high temperature to fixedly connect the panel and the upper plate bodies.

A second method of making the floor panel, comprising:

coating a liquid thermosetting adhesive on the upper surface of a lower plate body and the lower surface of an upper plate body, arranging a corrugated core layer between the lower plate body and the upper plate body, applying a clamping force to the lower plate body and the upper plate body to approach each other to press the corrugated core layer, and applying a high temperature to cure the thermosetting adhesive, thereby fixedly connecting the lower plate body, the upper plate body and the corrugated core layer;

the hot melt adhesive film is clamped between the panel and the upper plate body, the lower surface of the lower plate body is attached to and arranged with the heating plate, heat generated by the heating plate sequentially passes through the lower plate body, the corrugated core layer and the upper plate body, the upper plate body is conveyed to the hot melt adhesive film, the hot melt adhesive film is melted at high temperature, heat of the heating plate is removed, and the melted hot melt adhesive film is solidified at low temperature, so that the panel is fixedly connected with the upper plate body.

The application can realize the following beneficial effects:

1. this application will supply the people to trample the panel of walking and the corrugated sheet complex of high structural strength bending resistance to compression makes the floor block together, has remain wooden, marble or ceramic tile panel's wear-resisting and aesthetic property commonly used promptly, has compensatied the defect at the bottom of wooden, marble or ceramic tile panel structural strength commonly used moreover.

2. The present application uses a thermosetting adhesive instead of a conventional hot melt adhesive to bond and fix the respective structural layers of the corrugated substrate, and provides a practical bonding method. And then the upper panel can be bonded on the upper surface of the corrugated substrate by means of other thermosetting or hot melt adhesive with high curing speed and strong controllability, so that the manufacturing efficiency of the floor block is improved.

3. When the corrugated substrate is made of the metal material with rapid heat conduction, the heating plate providing heat is attached to the side, deviating from the panel, of the corrugated substrate, and the heat is quickly guided to the thermosetting or hot-melt adhesive between the panel and the corrugated substrate by means of the corrugated substrate made of the metal material, so that the panel and the corrugated substrate are bonded and fixed. In the manufacturing process, the panel does not bear high temperature, so that the upper panel can be made of various temperature-resistant or non-temperature-resistant materials, and is very ingenious. Moreover, the metal corrugated board has excellent compression resistance and bending resistance, which are just suitable for the use environment of the floor blocks paved on the ground, and just meet the use requirements of the floor blocks. Based on this, can make the panel of upper strata thin to several millimeters, save timber and stone material especially the use amount of famous and precious timber and stone material greatly. Further, when the floor block is used as a floor heating floor, the metal corrugated substrate can guide heat of a heat source below to the panel quickly and then the heat is dissipated to the indoor space through the panel, and indoor temperature is increased rapidly. And the floor heating system provided with the floor block can be started and heated immediately, the temperature of a heat source below the floor block does not need to be higher, the floor heating system can be normally used only by keeping the temperature at about 30 ℃, and the energy consumption is extremely low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description only relate to some embodiments of the present application and are not limiting on the present application.

Fig. 1 is a schematic cross-sectional structure of a floor board in the width direction in the first embodiment of the present application.

Fig. 2 is a schematic cross-sectional structure of the floor board along the length direction in the first embodiment of the application.

Fig. 3 is a schematic view of a connection structure of two adjacent floor boards in one embodiment of the present application.

Fig. 4 is a schematic structural diagram of a corrugated substrate according to an embodiment of the present application.

Fig. 5 is an illustration of a method of making a floor panel in a first embodiment of the present application.

Fig. 6 is an illustration of a method of manufacturing a floor panel according to a second embodiment of the present application.

Fig. 7 is a schematic structural diagram of a completed floor board in the second embodiment of the present application.

Wherein: 1-substrate, 2-panel, 3-floor buckle, 4-adhesive layer, 5-heating plate, 6-hot melt adhesive film;

101-upper plate body, 102-lower plate body, 103-corrugated core layer, 105-second panel positioning projection, 1 a-floor buckle embedding gap, and 301-panel positioning projection.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the application without any inventive step, are within the scope of protection of the application.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of the terms "a" or "an" and the like in the description and in the claims of the present application do not denote a limitation of quantity, but rather denote the presence of at least one.

In the description of the present specification and claims, the terms "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

Embodiments of the present application will now be described with reference to the accompanying drawings.

The first embodiment is as follows:

figures 1 to 5 show a preferred embodiment of the floor panels of the present application, which, like the floor panels of the construction mentioned in the introduction, also comprise a corrugated base 1 and a face sheet 2 abutting and secured to the upper surface of the corrugated base.

Unlike conventional corrugated board:

the corrugated substrate 1 in the present embodiment includes: the corrugated medium layer 103 is formed by bonding the upper plate body 101 fixed to the upper surface of the corrugated medium layer with a thermosetting adhesive (not a hot melt adhesive) and the lower plate body 102 fixed to the lower surface of the corrugated medium layer with a thermosetting adhesive (not a hot melt adhesive). The face plate 2 is adhesively fixed to the upper surface of the upper plate body 101 by a thermosetting adhesive.

When manufacturing the floor board:

first, a liquid thermosetting adhesive is applied to the upper surface of the lower plate 102 and the lower surface of the upper plate 101, a corrugated medium layer 103 is disposed between the lower plate 102 and the upper plate 101, a clamping force for pressing the middle corrugated medium layer 103 is applied to the lower plate 102 and the upper plate 101, and a high temperature is applied to cure the thermosetting adhesive, so that the lower plate 102, the upper plate 101, and the corrugated medium layer 103 are fixedly connected, thereby completing the manufacture of the corrugated substrate 1. The thickness of the liquid thermosetting adhesive, especially the liquid thermosetting adhesive on the lower surface of the upper plate body, is controlled. The coating is too little, and the bonding strength between the upper plate body and the lower plate body and the corrugated core layer is low. If the coating is too much, the adhesive on the lower surface of the upper plate body is easy to drip down.

Thereafter, another thermosetting adhesive is applied to the lower surface of the panel 2 or/and the upper surface of the upper plate body 101, the panel 2 is placed against the upper surface of the upper plate body 101, and downward pressure is applied to the panel 2, so that the thermosetting adhesive between the panel 2 and the upper plate body 101 is uniformly spread by the aforementioned pressure. The heating plate 5 is disposed to abut against the lower surface of the lower plate body 102, and heat generated from the heating plate 5 is transferred to the thermosetting adhesive between the panel 2 and the upper plate body 101 through the lower plate body 102, the corrugated core layer 103, and the upper plate body 101 in sequence, and the thermosetting adhesive is cured at a high temperature to fixedly connect the panel 2 and the upper plate body 101.

Because the thermosetting adhesive between the panel 2 and the upper board body 101 is uniformly dispersed under the action of pressure in the manufacturing process, after the manufacturing is completed, the cured thermosetting adhesive can form a continuous and compact adhesive layer 4 between the panel 2 and the upper board body 101 of the corrugated substrate, and no hole or groove exists between the panel 2 and the substrate 1, so that the floor block can bear great vertical load and vertical impact force.

In order to accelerate the heat transfer rate of the thermosetting adhesive between the panel 2 and the upper plate 101 on the heating plate 5, and further improve the manufacturing efficiency of the floor block, the corrugated substrate in this embodiment is a metal corrugated plate with high heat conduction speed and high temperature resistance. Specifically, the upper plate 101 and the lower plate 102 of the corrugated board 1 are both aluminum plates, and the middle corrugated layer 103 is an aluminum corrugation. Of course, if the upper plate body 101 and the lower plate body 102 are made of steel plates and the middle corrugated layer 103 is made of steel corrugations, the heat transfer rate is also high.

In some other embodiments of the present application, the corrugated medium layer 103 may also be made of other high temperature resistant materials, such as high temperature resistant plastics.

The face sheet 2 in this embodiment is a wood sheet, but it may be a marble sheet, a ceramic tile sheet, or a plastic sheet, or may be an abrasion resistant coating applied to the upper surface of the honeycomb substrate.

Unlike the floor boards mentioned in the background art, the floor buttons 3 are fixedly connected to four sides of the corrugated base board 1, so that the floor boards can be butted against each other by means of the floor buttons 3 at the sides to form a floor system of a large area laid on the ground.

The floor buckle 3 is connected to the side of the corrugated base board 1 in such a way that: the corrugated board has a corrugated medium layer 103 having an area smaller than the areas of the upper and lower plate bodies 101 and 102, and each side of the corrugated medium layer 103 is located inside a corresponding side of the upper and lower plate bodies 101 and 102, so that a floor buckle insertion gap 1a is formed between the upper and lower plate bodies 101 and 102 around the corrugated medium layer 103. The floor buckle 3 is fitted into the buckle fitting gap 1 a. The floor buckle portion fitted into the floor buckle fitting gap 1a is bonded and fixed to the upper plate 101 and the lower plate 102.

The floor buckle 3 may be welded to only one of the upper plate 101 and the lower plate 102. The advantage of so designing lies in: the assembly efficiency of the floor buckle 3 and the corrugated base plate 1 is improved. But has the defects that: the connection strength of the floor buckle 3 and the corrugated base plate 1 is slightly poor.

The adhesive used for bonding the floor button 3 and the corrugated base plate 1 may be a high temperature resistant thermosetting adhesive, so that the upper face plate 2 can be bonded by the above-mentioned process after the floor button 3 is assembled with the corrugated base plate 1.

When manufacturing the floor block, the floor buckle 3 is assembled with the corrugated substrate 1, and then the face plate 2 is covered on the upper surface of the corrugated substrate 1. If the structure of setting up 2 mounted positions of locating surface board on corrugated substrate 1 or floor buckle 3 is not, will lead to each floor block upper panel 2 and corrugated substrate 1 relative position not unified, and then lead to each floor block to link together the back, the gap between the adjacent floor blocks is not of uniform size, influences beautifully. Even the severe situation may result in the panels being unable to be assembled together.

For the above reason, the present embodiment provides the panel positioning projection 301 projecting upward and higher than the upper surface of the corrugated base board 1 on each floor buckle 3, and after the assembly is completed, the side edge of the panel 2 and the panel positioning projection 301 abut against each other in the horizontal direction.

During assembly, after the floor buckle 3 is connected with the corrugated base plate 1, the panel positioning bulges 301 on the floor buckle 3 protrude out of the upper surface of the corrugated base plate 1, so that prepositioning is provided for the installation of the panel 2, and then the bonding assembly of the panel 2 is completed under the positioning action of the panel positioning bulges 301.

Of course, it is also possible to install the floor clip 3 after the completion of the assembly of the corrugated base board 1 with the panel 2, even without disposing the floor clip 3.

In this embodiment, the corrugated substrate 1 has a shape corresponding to that of the floor board, and both are rectangular boards having a long strip shape. Like most corrugated board, the corrugated core layer 103 in this embodiment is also a wave-shaped structure having a plurality of alternately arranged peaks and valleys. It is known that the bending strength of the rectangular strip board in the length direction is weaker than that in the width direction, while the bending strength of the corrugated medium layer in the direction perpendicular to the arrangement of the peaks and valleys is much higher than that in the direction parallel to the arrangement of the peaks and valleys. Based on this, this embodiment arranges each crest and trough of this wavy flute core layer along corrugated substrate 1's width direction in turn to rectangular floor block's bending resistance in length direction has been promoted greatly.

As described above, the upper plate 101 is adhesively fixed to the upper surface of the corrugated medium layer 103 by means of a thermosetting adhesive, and the lower plate 102 is adhesively fixed to the lower surface of the corrugated medium layer 103 by means of a thermosetting adhesive. Therefore, the bonding process is controlled only when the upper plate body and the lower plate body are bonded with the middle corrugated core layer, all wave crests of the corrugated core layer can be bonded and fixed with the upper plate body 101, and all wave troughs of the corrugated core layer are bonded and fixed with the lower plate body 102, so that all wave crests and all wave troughs of the corrugated core layer are tightly combined with the upper plate body and the lower plate body, and the rectangular floor block can bear large bending torque in the width direction.

The term "thermosetting adhesive" as used herein includes both adhesives that cure by heating and adhesives that cure by heating at an increased rate.

Example two:

figures 6 and 7 show another preferred embodiment of a floor panel of the kind of the present application, which is essentially identical in construction to the first embodiment, with the main differences being only that:

the face plate 2 is adhesively fixed to the upper surface of the upper plate body 101 by means of a hot melt adhesive (instead of the thermosetting adhesive in the first embodiment).

Further, the face plate 2 and the upper plate 101 of the corrugated board 1 are fixed by adhesion with a hot melt adhesive film 6 interposed therebetween.

Referring to fig. 6, when manufacturing the floor panel:

first, a liquid thermosetting adhesive is applied to the upper surface of the lower plate 102 and the lower surface of the upper plate 101, a corrugated medium layer 103 is disposed between the lower plate 102 and the upper plate 101, a clamping force for pressing the middle corrugated medium layer 103 is applied to the lower plate 102 and the upper plate 101, and a high temperature is applied to cure the thermosetting adhesive, so that the lower plate 102, the upper plate 101, and the corrugated medium layer 103 are fixedly connected, thereby completing the manufacture of the corrugated substrate 1.

After that, the fitting of the floor buckle 3 with the corrugated base plate 1 is completed.

Then, the panel 2 is provided, a hot melt adhesive film is clamped between the panel 2 and the upper plate body 101, the lower surface of the lower plate body 102 is attached to the heating plate 5, heat generated by the heating plate 5 is sequentially transmitted to the hot melt adhesive film 6 through the lower plate body 102, the corrugated core layer 103 and the upper plate body 101, the hot melt adhesive film 6 is melted at high temperature, heat of the heating plate 5 is removed, and the melted hot melt adhesive film is solidified at low temperature, so that the panel 2 is fixedly connected with the upper plate body 101.

The above-mentioned "removing the heat from the heating plate 5" includes two ways: firstly, the heating plate is withdrawn from the lower surface of the lower plate body 102; secondly, the heating current of the heating plate 5 is cut off or reduced, so that the temperature of the heating plate 5 is reduced. The above-mentioned "high temperature" and "low temperature" are relative and do not have fixed temperature values, and the meaning of "high temperature" and "low temperature" is generally understood by those skilled in the art.

After the manufacturing is completed, the melted and solidified hot melt adhesive film also forms a continuous and compact adhesive layer 4 between the panel 2 and the upper board body 101 of the corrugated substrate, and no hole or groove exists between the panel 2 and the upper board body 101 of the corrugated substrate.

The above are exemplary embodiments of the present application only, and are not intended to limit the scope of the present application, which is defined by the appended claims.

Claims (10)

1. A flooring block comprising:

corrugated substrate (1), and

a face plate (2) which is attached to the upper surface of the corrugated board;

characterized in that the corrugated substrate (1) comprises:

a corrugated medium layer (103),

an upper plate body (101) adhesively fixed to the upper surface of the corrugated medium layer by a thermosetting adhesive, and

a lower plate body (102) adhesively fixed to the lower surface of the corrugated medium layer by a thermosetting adhesive;

the panel (2) is adhesively fixed to the upper surface of the upper plate body (101) by means of a thermosetting or hot-melt adhesive.

2. -floor panel according to claim 1, characterized in that the adhesive used for bonding the panel (2) to the corrugated substrate (1) forms a continuous, dense adhesive layer (4) between the panel (2) and the corrugated substrate (1).

3. -floor panel according to claim 2, characterized in that the panel (2) is adhesively fixed to the corrugated substrate (1) by means of a hot-melt adhesive film interposed therebetween.

4. -floor panel according to claim 1, characterized in that the corrugated core (103) is a metal corrugation, the upper plate body (101) and the lower plate body (102) are metal plates, and the panel (2) is a marble plate, a tile plate, a wood plate or a plastic plate.

5. -floor panel according to claim 1, characterized in that said corrugated core (103) is a high temperature resistant plastic.

6. The floor plank as claimed in claim 1, wherein the corrugated substrate (1) is a rectangular plate, and the corrugated core layer (103) is a wave-shaped structure comprising a plurality of crests and troughs alternately arranged in the width direction of the corrugated substrate (1), the plurality of crests being adhesively secured to the upper board body, and the plurality of troughs being adhesively secured to the lower board body.

7. The floor panel as claimed in claim 1, wherein a floor button fitting gap (1a) around the corrugated core (103) is formed between the upper panel body (101) and the lower panel body (102), and a floor button (3) welded or adhesively fixed to the upper panel body (101) or/and the lower panel body (102) is fitted into the floor button fitting gap (1 a).

8. -floor panel according to claim 6, characterized in that the floor covering (3) is provided with a panel positioning projection (301) which is higher than the upper surface of the upper panel body (101) and which is arranged against the side of the panel (2) in the horizontal direction.

9. -method for manufacturing a floorboard as claimed in any one of claims 1 to 8, comprising:

applying a liquid thermosetting adhesive to the upper surface of a lower plate body (102) and the lower surface of an upper plate body (101), arranging a corrugated medium layer (103) between the lower plate body (102) and the upper plate body (101), applying a clamping force to the lower plate body (102) and the upper plate body (101) to press the corrugated medium layer (103) close to each other, and applying a high temperature to cure the thermosetting adhesive, thereby fixedly connecting the lower plate body (102), the upper plate body (101) and the corrugated medium layer (103);

applying a thermosetting adhesive to the lower surface of the panel (2) or/and to the upper surface of the upper plate (101), arranging the panel (2) against the upper surface of the upper plate (101), and applying a downward pressure to the panel (2);

in the lower surface of lower plate body (102) is leaned on and is arranged hot plate (5), the heat that hot plate (5) produced passes through in proper order lower plate body (102) corrugated core layer (103) with go up plate body (101) conveying to panel (2) with go up the thermosetting adhesive between plate body (101), panel (2) with go up the thermosetting adhesive between plate body (101) and solidify under the high temperature, will panel (2) with go up plate body (101) fixed connection.

10. -method for manufacturing a floorboard as claimed in any one of claims 1 to 8, comprising:

applying a liquid thermosetting adhesive to the upper surface of a lower plate body (102) and the lower surface of an upper plate body (101), arranging a corrugated medium layer (103) between the lower plate body (102) and the upper plate body (101), applying a clamping force to the lower plate body (102) and the upper plate body (101) to press the corrugated medium layer (103) close to each other, and applying a high temperature to cure the thermosetting adhesive, thereby fixedly connecting the lower plate body (102), the upper plate body (101) and the corrugated medium layer (103);

at panel (2) with press from both sides between the last plate body (101) and establish hot melt adhesive membrane (6), in the lower surface of lower plate body (102) is pasted and is arranged hot plate (5), the heat that hot plate (5) produced passes through in proper order lower plate body (102) corrugated core layer (103) with go up plate body (101) conveying to hot melt adhesive membrane, hot melt adhesive membrane melts under high temperature, removes the heat of hot plate (5), the solidification of molten hot melt adhesive membrane low temperature, thereby will panel (2) with go up plate body (101) fixed connection.

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