A ceiling suspension system based on edge-bonded composite panels and a production method for edge-bonded composite panels

Abstract

The present invention discloses a ceiling suspended ceiling based on a wrapped composite board and a production method of the wrapped composite board. The ceiling suspended ceiling includes a support skeleton and a decorative board connected to each other. The decorative board is a wrapped composite board and includes a top board, a bottom box, and an intermediate filling layer. The bottom box is integrally formed by connecting a bottom board and a plurality of side boards. The lower part of the intermediate filling layer is placed in the bottom box and adhesively connected to the upper surface of the bottom board. The top board is placed on the upper surface of the intermediate filling layer and adhesively connected to each other. A decorative board groove is provided in the middle of the vertical side surface of the outer periphery of the intermediate filling layer and close to the upper edges of the plurality of side boards of the bottom box. The production method of the wrapped composite board includes the following steps: manufacturing the bottom box body, manufacturing the intermediate filling layer body, assembling, grooving, and other steps. In the present invention, the side boards form a wrap to completely cover the part of the intermediate filling layer located below the bottom horizontal skeleton, which not only protects the intermediate filling layer but also is beneficial to aesthetics. The production method of the present invention has the advantages of being convenient for processing and assembling.

Description

Technical Field

[0001] The present invention belongs to the technical field of the production of suspended ceilings, and particularly relates to a suspended ceiling based on a edge-bonded composite board and a production method of the edge-bonded composite board. Background Art

[0002] The suspended ceiling used in non-kitchen and non-bedroom areas is a decorative component for the ceiling of rooms other than kitchens and bedrooms in a house. It can not only beautify the indoor environment and create a rich and colorful indoor space art image, but also has the functions of heat preservation, heat insulation, sound insulation, and sound absorption. It is also a concealed layer for electrical, air conditioning, communication, and alarm pipeline equipment. The basic structure of this suspended ceiling includes a support skeleton and a decorative board. The decorative board is generally a honeycomb board, corrugated board, foam board, or other composite board based on such boards with certain heat preservation and heat insulation functions.

[0003] The decorative board of traditional suspended ceilings is generally directly placed at the lower end of the support skeleton, which has defects such as low strength of the decorative board, unstable installation, large gaps between the decorative board and the support skeleton, and inevitable partial exposure of the lower end of the support skeleton indoors.

[0004] In recent years, in order to improve the strength of the decorative board for stable installation, suspended ceilings using aluminum honeycomb boards (or other similar metal honeycomb boards) as decorative boards have emerged. Here, the aluminum honeycomb board refers to a board formed by pasting aluminum plates on both sides of an aluminum honeycomb core (a porous material made of relatively thin aluminum sheets and having a plurality of through holes with mutually parallel axial directions. Because it resembles a honeycomb structure, it is called an aluminum honeycomb core and can be folded into a relatively thin state and expanded into a three-dimensional polyhedron structure during use). The aluminum plates on both sides block both ends of all the through holes of the aluminum honeycomb core to form a closed space, so it has the functions of heat preservation, heat insulation, sound insulation, and sound absorption while improving strength.

[0005] In the initial stage of the emergence of aluminum honeycomb boards, installation methods such as buckles were used, which had defects such as complex structure and low stability. Currently, for a reliable installation structure of aluminum honeycomb boards, reference can be made to the utility model patent with the patent number "ZL 202222355816.9" and the name "An aluminum honeycomb board suspended ceiling with side slots for installation". This patent discloses an installation structure in which slots are formed on the side of the aluminum honeycomb board to form a card slot and the lower skeleton at the lowermost end of the support skeleton is placed in this card slot, which has the advantages of high installation stability and simple structure.

[0006] However, the above-mentioned utility model patent still has the following defects: the side of the aluminum honeycomb panel is not edge-wrapped, and the internal aluminum honeycomb core can be seen, which can neither protect the aluminum honeycomb core nor be aesthetically pleasing. Or even if there is an edge wrap, it is a separate edge wrap, and there are gaps and color differences between the edge wrap material and the bottom aluminum plate, which is also not aesthetically pleasing; the aluminum honeycomb panel and the support skeleton are only matched through a card slot with the lower skeleton, and the stability between the two is not ideal enough; there is also an important defect. Since many adjacent two aluminum honeycomb panels are respectively installed on both sides of the support skeleton, and the side surface of the aluminum honeycomb panel is a full plane (it is also difficult to process it into a stepped surface), there will inevitably be a problem that there is a gap between the two adjacent aluminum honeycomb panels after installation and the bottom of the vertical skeleton of the support skeleton can be seen through this gap, which reduces the aesthetic degree of the entire ceiling suspension and may cause the problem that objects above the ceiling fall into the room, and currently this problem exists in all other various ceiling suspensions. Summary of the Invention

[0007] The purpose of the present invention is to provide a ceiling suspension based on an edge-wrapped composite panel with an integrally formed bottom plate and edge wrap of the decorative panel and a production method of the edge-wrapped composite panel in order to solve the above problems.

[0008] The present invention realizes the above purpose through the following technical solutions:

[0009] A ceiling suspension based on an edge-wrapped composite panel, including a support skeleton and a decorative panel connected to each other. The support skeleton includes a vertical skeleton, a top horizontal skeleton, a middle horizontal skeleton, and a bottom horizontal skeleton connected to each other. A horizontal decorative panel groove is provided on the outer peripheral vertical side surface of the square decorative panel in the horizontal direction. The bottom horizontal skeleton is placed in the corresponding decorative panel groove. The decorative panel is an edge-wrapped composite panel. The edge-wrapped composite panel includes a top plate, a bottom box, and an intermediate filling layer. The square bottom box in the horizontal direction is integrally formed by connecting a bottom plate and a plurality of side plates. The lower part of the square intermediate filling layer in the horizontal direction is placed in the bottom box and is adhesively connected to the upper surface of the bottom plate. The decorative panel groove is provided in the middle of the outer peripheral vertical side surface of the intermediate filling layer and close to the upper edges of the plurality of side plates of the bottom box. The square top plate in the horizontal direction is placed on the intermediate filling layer and is adhesively connected to each other. The outer peripheral edge of the top plate is flush with the upper part of the outer peripheral vertical side surface of the intermediate filling layer, or the outer peripheral edge of the top plate is bent downward by 90° to the upper groove wall of the decorative panel groove to form a top box.

[0010] Based on the above structure, the decorative panel of the present invention can form the following multiple combined structures: 1. The structure of a bottom box + an intermediate filling layer without upper inward contraction + a top plate; 2. The structure of a bottom box + an intermediate filling layer with upper inward contraction + a top plate; 3. The structure of a bottom box + an intermediate filling layer with upper inward contraction + a top box and the outer surface of the side plate of the top box is flush with the outer surface of the side plate of the bottom box; 4. The structure of a bottom box + an intermediate filling layer with upper inward contraction + a top box and the outer surface of the side plate of the top box is inwardly contracted relative to the outer surface of the side plate of the bottom box.

[0011] Preferably, in order to further improve the connection stability between the decorative panel and the support skeleton to avoid loosening of the decorative panel, a horizontal bolt is provided at a position on the vertical skeleton between the middle horizontal skeleton and the bottom horizontal skeleton, and the bolt is directly inserted into the intermediate filling layer.

[0012] Preferably, in order to improve the overall strength of the support skeleton, the vertical skeleton, the top horizontal skeleton, the middle horizontal skeleton, the bottom horizontal skeleton and the bolt are integrally formed.

[0013] Preferably, in order to ensure that the intermediate filling layer has the support strength to support the weight of the entire decorative panel and improve the strength of the decorative panel, the intermediate filling layer is one of a metal honeycomb core, a metal corrugated core and a fiber cement board, the top plate is a metal plate, and the bottom box is a metal box.

[0014] Preferably, in order to ensure that the intermediate filling layer and the decorative panel have sufficient support strength and are convenient for processing, the metal honeycomb core is an aluminum honeycomb core, the metal corrugated core is an aluminum corrugated core, the top plate is an aluminum plate, and the bottom box is an aluminum box.

[0015] Preferably, in order to enable the adjacent two decorative panels on both sides of the vertical skeleton to be close to each other in contact to avoid exposing gaps and reducing the aesthetics of the suspended ceiling, the outer peripheral edge of the top plate is flush with the upper part of the outer peripheral vertical side surface of the intermediate filling layer, and the part of the outer peripheral vertical side surface of the intermediate filling layer above the decorative panel groove is inwardly contracted relative to the outer surface of the side plate of the bottom box on the same side, and the contracted distance is half of the thickness of the vertical skeleton.

[0016] Preferably, in order to protect the intermediate filling layer of the decorative panel from being damaged before installation and for aesthetics, a decorative strip is bonded to the part of the outer peripheral vertical side surface of the intermediate filling layer above the decorative panel groove, and the outer surface of the decorative strip is flush with the outer surface of the side plate of the bottom box on the same side.

[0017] A production method of a edge-bonded composite board includes the following steps:

[0018] Step 1: Manufacture a bottom box body with a square shape horizontally. The bottom box body is integrally formed by connecting a body bottom plate and a plurality of body side plates. Each body side plate includes a lower side plate and an upper side plate that are connected and integrally formed. The inner surface of the upper side plate is indented inward relative to the outer surface of the corresponding lower side plate, and the distance between the two is half of the thickness of the vertical skeleton.

[0019] Step 2: Manufacture an intermediate filling layer body with a square shape horizontally. The intermediate filling layer body has a top surface plane, a bottom surface plane, and a plurality of side surface planes.

[0020] Step 3: Apply glue on the bottom surface plane of the intermediate filling layer body and / or the upper surface of the body bottom plate of the bottom box body.

[0021] Step 4: Place the intermediate filling layer body into the bottom box body from top to bottom, and make each side surface plane of the intermediate filling layer body be in surface contact with the inner surface of the upper side plate of the corresponding body side plate. Press the intermediate filling layer body and keep it for a certain time to make it firmly bonded to the body bottom plate.

[0022] Step 5: Apply glue on the top surface plane of the intermediate filling layer body and / or the lower surface of a top plate with a square shape horizontally.

[0023] Step 6: Place the top plate on the intermediate filling layer body, press the top plate and keep it for a certain time to make it firmly bonded to the top surface plane of the intermediate filling layer body. The outer peripheral edge of the top plate is flush with the upper part of the outer peripheral vertical side surface of the intermediate filling layer body.

[0024] Step 7: Use a grooving device to perform grooving processing on the grooving positions of the plurality of side surface planes of the intermediate filling layer body, remove the materials on the intermediate filling layer body corresponding to the decorative board grooves and the corresponding materials on the corresponding body side plates together, and form the decorative board grooves on the intermediate filling layer body, thereby obtaining the intermediate filling layer.

[0025] Step 8: Remove the upper middle parts of all the body side plates of the bottom box body that have been cut off to obtain the bottom box, and thus obtain the entire edge-bonded composite board.

[0026] Preferably, in order to facilitate obtaining a bottom box body with a specific structure from a bottom box body with a conventional structure, in Step 1, first prepare a bottom box body in which a body bottom plate and a plurality of body side plates are connected and integrally formed, and each body side plate is a whole flat plate, and then process the upper parts of all the body side plates to form the lower side plates and the upper side plates that are connected to each other.

[0027] Preferably, in order to ensure the relative position accuracy reliability between the lower side plate and the upper side plate of the body side plate, the method for processing the upper part of the body side plate is as follows: Place the bead rolling die on the rolling equipment outside the upper part of the corresponding body side plate. Press one end of the bead rolling die by the roller of the rolling equipment to make the corresponding body side plate retract inward by the required dimension. Then drive the roller to roll on the bead rolling die to the other end until the entire upper part of the body side plate retracts inward by the required dimension, so that the lower side plate and the upper side plate that are connected to each other are formed on the body side plate.

[0028] The beneficial effects of the present invention are as follows:

[0029] By using the edge-wrapped composite board as the decorative board in the present invention, the bottom plate of the bottom box and multiple side plates are integrally formed. The side plates form an edge wrap to completely cover the part of the intermediate filling layer located below the bottom horizontal skeleton. There is no gap and no color difference between the bottom plate and the side plates, which not only protects the intermediate filling layer but also is beneficial to aesthetics. By adding pins on the support skeleton and directly inserting them into the intermediate filling layer, the stability between the decorative board and the support skeleton is more reliable. By designing the side plates of the bottom box as a structure in which the upper part of the outer surface of the side plate retracts inward relative to the lower part, the adjacent two decorative boards located on both sides of the vertical skeleton can be close to each other to avoid exposing gaps, improving the aesthetics of the entire ceiling suspension and better preventing objects above the ceiling from falling into the room.

[0030] In the present invention, by first manufacturing the bottom box body with a specific structure, then installing the intermediate filling layer and bonding it to the bottom plate of the bottom box, and then installing the top plate and cutting off the redundant part to form the edge-wrapped composite board with a specific structure, the function of avoiding exposing gaps between adjacent two decorative boards is realized, which has the advantages of being convenient for processing and assembly and being able to accurately position the intermediate filling layer in the bottom box. Description of the Drawings

[0031] Figure 1 is the front view sectional view of the support skeleton of the ceiling suspension based on the edge-wrapped composite board of the present invention;

[0032] Figure 2 is the top view of the decorative board, i.e., the edge-wrapped composite board, of the ceiling suspension based on the edge-wrapped composite board of the present invention;

[0033] Figure 3 is the A-A sectional view in the top view of the decorative board, i.e., the edge-wrapped composite board, of the ceiling suspension based on the edge-wrapped composite board of the present invention, and is also the front view sectional view of the decorative board, i.e., the edge-wrapped composite board;

[0034] Figure 4 is the front view sectional view of the decorative board, i.e., the edge-wrapped composite board, of the ceiling suspension based on the edge-wrapped composite board of the present invention after removing the decorative strip;

[0035] Figure 5 is the front view cross-section of the ceiling suspended ceiling based on the edge-wrapped composite board according to the present invention;

[0036] Figure 6 is the front view cross-section of the bottom box body in the production method of the edge-wrapped composite board according to the present invention;

[0037] Figure 7 is the front view cross-section of the assembled bottom box body and the intermediate filling layer body in the production method of the edge-wrapped composite board according to the present invention;

[0038] Figure 8 is the front view cross-section of the assembled bottom box body, the intermediate filling layer body and the top board in the production method of the edge-wrapped composite board according to the present invention;

[0039] Figure 9 is the front view cross-section of the assembled bottom box body, the intermediate filling layer body and the top board and processed with slots in the production method of the edge-wrapped composite board according to the present invention. Specific embodiments

[0040] The present invention will be further described below with reference to the accompanying drawings:

[0041] As Figures 1 - 5 shown, the ceiling suspended ceiling based on the edge-wrapped composite board according to the present invention includes a support skeleton 1 and a decorative board 2 connected to each other. The support skeleton 1 includes a vertical skeleton 12, a top horizontal skeleton 11, a middle horizontal skeleton 16 and a bottom horizontal skeleton 14 connected to each other. A horizontal decorative board groove 25 is provided on the outer peripheral vertical side of the decorative board 2 with a square shape in the horizontal direction (a square in the figure, which can also be other squares, such as a rectangle, a triangle, a hexagon, etc., the same below). The bottom horizontal skeleton 14 is placed in the corresponding decorative board groove 25. The decorative board 2 is an edge-wrapped composite board. The edge-wrapped composite board includes a top board 21, a bottom box 24 and an intermediate filling layer 23. The bottom box 24 with a square shape in the horizontal direction is integrally formed by connecting a bottom board (not marked in the figure, refer to Figure 6 the body bottom board 242 therein) and a plurality of (four in the figure) side boards (not marked in the figure, refer to Figure 6 the lower side board 246 therein). The lower part of the intermediate filling layer 23 with a square shape in the horizontal direction is placed in the bottom box 24 and adhesively connected to the upper surface of the bottom board. The decorative board groove 25 is provided in the middle of the outer peripheral vertical side of the intermediate filling layer 23 and close to the upper edges of the plurality of side boards of the bottom box 24. The top board 21 with a square shape in the horizontal direction is placed on the intermediate filling layer 23 and adhesively connected to each other. The outer peripheral edge of the top board 21 is flush with the upper part of the outer peripheral vertical side of the intermediate filling layer 23 (or, the outer peripheral edge of the top board 21 can also be bent downward by 90° to the upper groove wall of the decorative board groove 25 to form a top box).

[0042] As Figures 1 - 5As shown in the figure, the present invention also discloses the following various more optimized specific structures:

[0043] In order to further improve the connection stability between the decorative panel 2 and the support skeleton 1 to prevent the decorative panel 2 from loosening, a horizontal bolt 13 is provided at a position on the vertical skeleton 12 between the middle horizontal skeleton 16 and the bottom horizontal skeleton 14, and the bolt 13 is directly inserted into the intermediate filling layer 23.

[0044] In order to improve the overall strength of the support skeleton 1, the vertical skeleton 12, the top horizontal skeleton 11, the middle horizontal skeleton 16, the bottom horizontal skeleton 14 and the bolt 13 are integrally formed.

[0045] In order to ensure that the intermediate filling layer 23 has a support strength capable of supporting the weight of the entire decorative panel 2 and improve the strength of the decorative panel 2, the intermediate filling layer 23 is one of a metal honeycomb core, a metal corrugated core and a fiber cement board, the top plate 21 is a metal plate, and the bottom box 24 is a metal box.

[0046] In order to ensure that the intermediate filling layer 23 and the decorative panel 2 have sufficient support strength and are convenient for processing, the metal honeycomb core is an aluminum honeycomb core, the metal corrugated core is an aluminum corrugated core, the top plate 21 is an aluminum plate, and the bottom box 24 is an aluminum box.

[0047] In order to enable the adjacent two decorative panels 2 on both sides of the vertical skeleton 12 to be close to each other in contact to prevent gaps from being exposed and reduce the aesthetic appearance of the ceiling, the outer peripheral edge of the top plate 21 is flush with the upper part of the outer peripheral vertical side surface of the intermediate filling layer 23, and the part of the outer peripheral vertical side surface of the intermediate filling layer 23 above the decorative panel groove 25 is indented inward relative to the outer surface of the side plate of the bottom box 24 on the same side, and the indented distance is half of the thickness of the vertical skeleton 12.

[0048] In order to protect the intermediate filling layer 23 of the decorative panel 2 from being damaged before installation and facilitate aesthetics, a decorative strip 22 is bonded to the part of the outer peripheral vertical side surface of the intermediate filling layer 23 above the decorative panel groove 25, and the outer surface of the decorative strip 22 is flush with the outer surface of the side plate of the bottom box 24 on the same side.

[0049] Figure 1 Other partial structures of the support skeleton 1 are also shown. The end of the middle horizontal skeleton 16 is bent upward at a certain angle to form a flared portion 17, which is beneficial for clamping the upper part of the decorative panel 2 between the middle horizontal skeleton 16 and the bottom horizontal skeleton 14. The end of the bottom horizontal skeleton 14 is provided with a clamping portion 15 with a convex and beveled surface, which is beneficial for pressing against the groove wall of the decorative panel groove 25 to improve the stability between the support skeleton 1 and the decorative panel 2. These structures are all conventional structures.

[0050] As Figures 6 - 9 shown, the production method of the edge-bonded composite panel, that is, the decorative panel 2 of the present invention, includes the following steps:

[0051] Step 1: As shown in Figure 6 , a bottom box body 241 with a square cross-section horizontally is fabricated. The bottom box body 241 is formed by integrally connecting a body bottom plate 242 and multiple (four in the figure) body side plates 244. The bottom box body 241 has an inner cavity 243 with an opening at the upper side. Each body side plate 244 includes a lower side plate 246 and an upper side plate 245 that are integrally connected. The inner surface of the upper side plate 245 is indented inward relative to the outer surface of the corresponding lower side plate 246, and the distance between them is half of the thickness of the vertical skeleton 12. In this step, the preferred fabrication method is as follows: First, prepare a bottom box body 241 formed by integrally connecting a body bottom plate and multiple body side plates, and each of the body side plates is a single flat plate. Then, process the upper parts of all the body side plates 244 to form the interconnected lower side plates 246 and upper side plates 245. The specific processing method is as follows: Place a bead rolling die (not shown in the figure, a conventional die) on a rolling equipment (not shown in the figure, a conventional equipment) on the outer side of the upper part of the corresponding body side plate 244. Apply pressure to one end of the bead rolling die through the roller of the rolling equipment to indent the corresponding body side plate 244 inward by the required dimension. Then, drive the roller to roll on the bead rolling die to the other end until the upper part of the body side plate 244 is completely indented inward by the required dimension, so that the body side plate 244 forms the interconnected lower side plate 246 and upper side plate 245;

[0052] Step 2: As shown in Figure 7 , a middle filling layer body 231 with a square cross-section horizontally is fabricated. The middle filling layer body 231 has a top surface plane, a bottom surface plane, and multiple (four in the figure) side surface planes;

[0053] Step 3: Apply glue on the bottom surface plane of the middle filling layer body 231 and / or the upper surface of the body bottom plate 242 of the bottom box body 241;

[0054] Step 4: As shown in Figure 7 , place the middle filling layer body 231 into the bottom box body 241 from top to bottom, and make each side surface plane of the middle filling layer body 231 be in surface contact with the inner surface of the upper side plate 245 of the corresponding body side plate 244. Press the middle filling layer body 231 and keep it for a certain time to make it firmly bonded to the body bottom plate 242;

[0055] Step 5: Apply glue on the top surface plane of the middle filling layer body 231 and / or the lower surface of the top plate 21 with a square cross-section horizontally;

[0056] Step 6: As shown in Figure 8As shown, place the top plate 21 on top of the intermediate filling layer body 231, press down on the top plate 21 and hold for a certain period of time to firmly bond it to the top surface plane of the intermediate filling layer body 231. The outer peripheral edge of the top plate 21 is flush with the upper part of the outer peripheral vertical side surface of the intermediate filling layer body 231.

[0057] Step 7: As Figure 8 shown, use a grooving device (not shown in the figure, a conventional device) to groove the grooving positions on multiple side surface planes of the intermediate filling layer body 231, removing the materials on the intermediate filling layer body 231 corresponding to the decorative board groove 25 and the materials on the corresponding body side plate 244 together, forming a decorative board groove 25 on the intermediate filling layer body 231, thereby obtaining the intermediate filling layer 23.

[0058] Step 8: Remove the upper middle parts cut off on all the body side plates 244 of the bottom box body 241 to obtain the bottom box 24, thus obtaining the entire edge-wrapped composite board, as Figure 4 shown.

[0059] Combined with Figure 3 and Figure 4 , on the basis of step 8, bond a decorative strip 22 on the outer peripheral vertical side surface of the intermediate filling layer 23 above the decorative board groove 25. The outer surface of the decorative strip 22 is flush with the outer surface of the side plate of the bottom box 24 on the same side, then the Figure 3 shown edge-wrapped composite board is obtained.

[0060] As Figures 1 - 5 shown, the vertical skeleton 12, top horizontal skeleton 11, middle horizontal skeleton 16, and bottom horizontal skeleton 14 of the support skeleton 1 are generally plate-like structures. The plug 13 is sheet-like or strip-shaped with a pointed end, facilitating insertion into the intermediate filling layer 23. There are multiple plugs 13 arranged horizontally in sequence. In use, a large number of support skeletons 1 and decorative boards 2 are assembled with each other. The upper parts of multiple support skeletons 1 also need to be connected to components such as a hanging plate and a suspension rod (not shown in the figure, all are conventional hoisting components). Four support skeletons 1 correspond to the four sides of each decorative board 2, but each support skeleton 1 corresponds to a large number of decorative boards 2. The structure between one of the support skeletons 1 and the decorative board 2 of the assembled ceiling is as Figure 5 shown. The side plates of the bottom box 24 form an edge to completely cover the part of the intermediate filling layer 23 below the bottom horizontal skeleton 14. There is no gap and no color difference between the bottom plate and the side plates, which not only protects the intermediate filling layer 23 but also is beneficial to aesthetics. Multiple plugs 13 are directly inserted into the intermediate filling layer 23, making the connection between the decorative board 2 and the support skeleton 1 more reliable and stable. At the same time, adjacent two decorative boards 2 on both sides of the vertical skeleton 12 can be close to each other to avoid exposing gaps, improving the aesthetics of the entire ceiling and better preventing objects above the ceiling from falling into the room.

[0061] The above embodiments are only preferred embodiments of the present invention and do not limit the technical solutions of the present invention. Any technical solution that can be achieved on the basis of the above embodiments without creative efforts shall be regarded as falling within the scope of the patent rights of the present invention.

Claims

1. A production method of an edge-wrapped composite board, the edge-wrapped composite board being a decorative board, the decorative board and a support skeleton forming a ceiling suspended ceiling, the support skeleton including a vertical skeleton, a top horizontal skeleton, a middle horizontal skeleton and a bottom horizontal skeleton that are connected to each other, a horizontal decorative board groove being provided on the outer peripheral vertical side of the square-shaped decorative board, the bottom horizontal skeleton being placed in the corresponding decorative board groove, the edge-wrapped composite board including a top plate, a bottom box and an intermediate filling layer, the square-shaped bottom box being integrally formed by connecting a bottom plate and a plurality of side plates to each other, the lower part of the square-shaped intermediate filling layer being placed in the bottom box and adhesively connected to the upper surface of the bottom plate, the decorative board groove being provided in the middle of the outer peripheral vertical side of the intermediate filling layer and close to the upper edges of the plurality of side plates of the bottom box, the square-shaped top plate being placed on the intermediate filling layer and adhesively connected to each other, the outer peripheral edge of the top plate being flush with the upper part of the outer peripheral vertical side of the intermediate filling layer, or the outer peripheral edge of the top plate being bent downward by 90° to the upper groove wall of the decorative board groove to form a top box; characterized in that: The production method of the edge-wrapped composite board includes the following steps: Step 1: Fabricate a bottom box body with a square cross-section horizontally. The bottom box body is integrally formed by connecting a body bottom plate and multiple body side plates. Each body side plate includes a lower side plate and an upper side plate that are connected and integrally formed. The inner surface of the upper side plate is indented inward relative to the outer surface of the corresponding lower side plate, and the distance between them is half of the thickness of the vertical skeleton. Step 2: Fabricate an intermediate filling layer body with a square cross-section horizontally. The intermediate filling layer body has a top surface plane, a bottom surface plane, and multiple side surface planes. Step 3: Apply glue to the bottom surface plane of the intermediate filling layer body and / or the upper surface of the body bottom plate of the bottom box body. Step 4: Place the intermediate filling layer body into the bottom box body from top to bottom, and make each side surface plane of the intermediate filling layer body in surface-to-surface contact with the inner surface of the upper side plate of the corresponding body side plate. Press the intermediate filling layer body and hold it for a certain period of time to firmly bond it to the body bottom plate. Step 5: Apply glue to the top surface plane of the intermediate filling layer body and / or the lower surface of a top plate with a square cross-section horizontally. Step 6: Place the top plate on top of the intermediate filling layer body, press the top plate and hold it for a certain period of time to firmly bond it to the top surface plane of the intermediate filling layer body. The outer peripheral edge of the top plate is flush with the upper part of the peripheral vertical side surface of the intermediate filling layer body. Step 7: Use a grooving device to perform grooving processing on the grooving positions of multiple side surface planes of the intermediate filling layer body, remove the materials on the intermediate filling layer body corresponding to the decorative board grooves and the corresponding materials on the corresponding body side plates together, and form the decorative board grooves on the intermediate filling layer body to obtain the intermediate filling layer. Step 8: Remove the upper middle parts of all the body side plates of the bottom box body that have been cut off to obtain the bottom box, and thus obtain the entire edge-wrapped composite board.

2. The production method of the edge-wrapped composite board according to claim 1, characterized in that: In the above Step 1, first prepare a bottom box body in which a body bottom plate and multiple body side plates are connected and integrally formed, and each body side plate is a whole flat plate, and then process the upper parts of all the body side plates to form the connected lower side plates and upper side plates.

3. The production method of the edge-wrapped composite board according to claim 2, characterized in that: The method for processing the upper parts of the body side plates is as follows: Place the rib rolling die on the rolling equipment on the outer side of the upper part of the corresponding body side plate, apply pressure to one end of the rib rolling die through the roller of the rolling equipment to make the corresponding body side plate indent inward by the required dimension, and then drive the roller to roll on the rib rolling die to the other end until the upper part of the body side plate is completely indented inward by the required dimension, so that the body side plate forms the connected lower side plate and upper side plate.

4. The production method of the edge-wrapped composite board according to claim 1, characterized in that: A horizontal pin is provided at the position on the vertical skeleton between the middle horizontal skeleton and the bottom horizontal skeleton, and the pin is directly inserted into the intermediate filling layer.

5. The production method of the edge-wrapped composite board according to claim 4, characterized in that: The vertical skeleton, the top horizontal skeleton, the middle horizontal skeleton, the bottom horizontal skeleton, and the pin are integrally formed.

6. The production method of the edge-wrapped composite board according to claim 1, characterized in that: The intermediate filling layer is one of a metal honeycomb core, a metal corrugated core, and a fiber cement board. The top plate is a metal plate, and the bottom box is a metal box.

7. The production method of the edge-wrapped composite board according to claim 6, characterized in that: The metal honeycomb core is an aluminum honeycomb core, the metal corrugated core is an aluminum corrugated core, the top plate is an aluminum plate, and the bottom box is an aluminum box.

8. The production method of the edge-wrapped composite board according to any one of claims 1-7, characterized in that: The outer peripheral edge of the top plate is flush with the upper part of the outer peripheral vertical side surface of the intermediate filling layer. The part of the outer peripheral vertical side surface of the intermediate filling layer above the decorative plate groove is indented inward relative to the outer surface of the side plate of the bottom box on the same side, and the indented distance is half of the thickness of the vertical skeleton.

9. The production method of the edge-wrapped composite board according to claim 8, characterized in that: A decorative strip is bonded to the part of the outer peripheral vertical side surface of the intermediate filling layer above the decorative plate groove, and the outer surface of the decorative strip is flush with the outer surface of the side plate of the bottom box on the same side.

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