CN115874773A - Assembled external corner wallboard and manufacturing method thereof - Google Patents

Abstract

The invention discloses an assembled external corner wallboard and a preparation method thereof, and belongs to the technical field of indoor decoration. The assembled external corner wallboard comprises two wallboards which are arranged side by side, wherein each wallboard comprises an inner board layer and an outer board layer which are tightly connected in the thickness direction, the adjacent positions of the inner board layers of the two wallboards are respectively provided with a vacant position, the two vacant positions are communicated to form a bending profile placing groove together, and a bending profile is embedded in the bending profile placing groove; the bending section bar is of a long frame structure, an open slot is formed in the inner side of the bending section bar, connecting concave platforms are arranged on two edges of the open slot, and connecting threaded holes are formed in the connecting concave platforms; and the connection concave table is provided with a connection reinforcing plate and is fixed by matching a screw with the connection threaded hole. The integral external corner wallboard can be integrally transported, can be directly used on site, is simple to prepare and convenient to operate, and the formed external corner is attractive and has higher quality.

Description

Assembled external corner wallboard and manufacturing method thereof

Technical Field

The invention belongs to the technical field of indoor decoration, and particularly relates to an assembled external corner wallboard and a manufacturing method thereof.

Background

The existing basic method for assembling ceramic tile wallboards is that two wallboards are manufactured in a factory and conveyed to the site, then the two wallboards are spliced to form an external corner wallboard, and because errors exist in the manufacturing, assembling and other links, the joint of the two wallboards often has a large gap or generates uneven gaps with one end being large and the other end being small; because the tile is ground to 45 degrees on one side, the tile is easy to crack to cause damages such as tile collapse angle and the like during carrying and installation, in order to cover phenomena such as uneven gaps and tile collapse angle, an external corner line is added to cover the gaps and the collapse angle after assembly, and the whole methods are not beautiful.

Disclosure of Invention

In view of the above, the invention provides an assembled external corner wallboard and a manufacturing method thereof, the external corner structure of the wallboard realizes that the same plane of an external corner is integrally produced by utilizing the plasticity and the rigidity of a steel section, and the external corner is bent into an external corner of 90 degrees after being transported to an installation site, so that the production efficiency is greatly improved, the cost is saved, the transportation is convenient, and the finished product effect is good.

In order to solve the technical problems, the invention adopts the following technical scheme:

an assembled external corner wallboard comprises two wallboards which are arranged side by side, wherein each wallboard comprises an inner board layer and an outer board layer which are tightly connected in the thickness direction, the adjacent positions of the inner board layers of the two wallboards are respectively provided with a vacant position, the two vacant positions are communicated to form a bending section placing groove together, and a bending section is embedded in the bending section placing groove;

the bending section bar is of a long frame structure, an open slot is formed in the inner side of the bending section bar, connecting concave platforms are arranged on two edges of the open slot, and connecting threaded holes are formed in the connecting concave platforms; and the connection concave table is provided with a connection reinforcing plate and is fixed by matching a screw with the connection threaded hole. The material of the bent section bar is preferably a metal material, such as a steel section bar or an aluminum section bar.

Further, when the thickness of the outer plate layer is thicker, in order to prevent the two wall plates from being butted between the two adjacent outer plate layers after being bent and form a larger gap between the two outer plate layers and ensure that the bending is smoother, the two outer plate layers are respectively reserved with oblique planes at the adjacent positions, and the two oblique planes form a V-shaped groove. Preferably, the slope of the two chamfer faces is 45 degrees.

Furthermore, the outer side surface of the bending section bar is provided with a V-shaped groove structure, and the V-shaped groove structure enters a V-shaped groove formed by the oblique cutting surfaces of the two outer plate layers. This increases the tightness of the connection between the structures.

And furthermore, the bending section bar further comprises an angle code, fixing threaded holes are respectively formed in the groove edges on the two sides of the open groove of the bending section bar, and after the bending section bar is bent along with the two wall plates, the angle code is fixed through the matching of screws and the fixing threaded holes, so that the bending section bar is ensured to be stable after being bent.

Further, the outer plate layer is a tile layer or a stone plate layer.

Preferably, the inner plate layer is made of fireproof and light-weight materials and comprises a first polyurethane and glass fiber mixed layer, an aluminum honeycomb layer and a second polyurethane and glass fiber mixed layer from outside to inside. The polyurethane and glass fiber mixed layer is a composite layer of a rigid polyurethane foam layer and a glass fiber layer, the rigid polyurethane foam can be a common technology on the market and can also be prepared by oneself, and if a polyether polyol A material and a polyisocyanate B material are adopted according to a mass ratio of 1:1.05, preparing by mixing, wherein the polyether polyol A material is white material, is selected from polyurethane Co., ltd of Polyke of Guangzhou city, and has the product name of TD-1329.4; the polyisocyanate B is black material, and is selected from Wanhua chemical group GmbH, and the product name is PM-200.

Furthermore, an edge sealing section bar is arranged at one end of the inner plate layer corresponding to the end where the vacancy is located. The edge sealing section bar is a metal section bar, preferably a steel section bar or an aluminum section bar.

Furthermore, the outer wall surface of the external corner wallboard is provided with an adhesive tape at the position of a gap formed by the two outer plate layers.

The preparation method of the assembled external corner wallboard comprises the following steps:

step one, manufacturing a mould with a bottom plate and four side plates, and flatly paving two adjacent outer plate layers on the mould;

placing edge sealing section bars on the two outer plate layers close to the two side plates of the die, and placing bending section bars on the contact positions of the two outer plate layers;

step three, paving glass fibers, and spraying fully-stirred bi-component polyurethane: the total amount of polyurethane sprayed on each square of glass fiber is 800g, wherein the polyether polyol A material: the polyisocyanate B material is prepared from the following raw materials in a mass ratio of 1: mixing at the optimal ratio of 1.05, placing the two materials in a stirring barrel, fully stirring and mixing, and spraying the two materials on glass fibers through a pipeline and quantitative spraying equipment;

step four, continuously paving the aluminum honeycombs;

step five, repeating the step three on the aluminum honeycomb, namely paving the glass fiber and spraying the fully-stirred bi-component polyurethane;

and step six, after the materials are distributed, sending the die into a flat press, and after the die is processed by the flat press, demolding to obtain the external corner wallboard.

Furthermore, adhesive tapes are pasted at the gap formed by the two outer plate layers on the outer wall surface of the external corner wall plate.

In the invention, the total thickness of the external corner wallboard prepared by a flat plate press is 40mm: the thickness of the outer plate layer is 10mm, the thickness of the first polyurethane and glass fiber mixed layer is 0.5mm, the thickness of the aluminum honeycomb layer is 29.5mm, the thickness of the second polyurethane and glass fiber mixed layer is 0.5mm, the sum is 40.5mm, all the layers are laid well and then sent to a press machine to be pressed, kept warm and kept pressure for more than ten minutes, and the finished product is 40mm thick; or the outer plate layer is 12mm, the thickness of the aluminum honeycomb is changed into 27.5mm, and the thickness of the finished product is also 40 mm.

The use method of the assembled external corner wallboard comprises the following steps:

after the bent section bar is transported to an installation site, the connecting reinforcing plate on the external corner wallboard is removed, the external corner wallboard is bent by 90 degrees, and the angle of the external corner wallboard is fixed by using an angle connector on the bent section bar;

after the external corner wallboard is fixed, assembling the external corner wallboard to a corresponding indoor position, and finally tearing off the special adhesive tape;

finally, seam beautifying and closing up are carried out on the seam between two adjacent outer plate layers by seam beautifying agent.

Compared with the prior art, the invention has the following beneficial effects:

according to the invention, the whole external corner wallboard can be integrally transported, the external corner wallboard can be directly used on site, the preparation is simple, the operation is convenient, the formed external corner is beautiful, and the quality is higher.

Drawings

FIG. 1 is a schematic cross-sectional view of an external corner panel;

FIG. 2 is a schematic view of the front structure of the external corner wall panel;

FIG. 3 is a schematic cross-sectional view of a finished product after bending an external corner wallboard;

FIG. 4 is a schematic structural view of a bent profile;

FIG. 5 is a schematic view of two adjacent outer laminates;

FIG. 6 is a schematic perspective view of a mold;

FIG. 7 is a schematic view of laying the outer plies flat on the mold;

FIG. 8 is a schematic view of a first polyurethane and fiberglass hybrid layer disposed on an outer ply;

FIG. 9 is a schematic of an aluminum honeycomb layer disposed on a first polyurethane and glass fiber hybrid layer;

FIG. 10 is a schematic of disposing a second polyurethane and glass fiber hybrid layer on an aluminum honeycomb layer;

fig. 11 is a schematic diagram of the operation of the flat press for pressing the external corner die.

In the figure: wallboard 1, interior plate layer 11, vacancy position 110, first polyurethane and glass fiber mix layer 111, aluminium honeycomb layer 112, second polyurethane and glass fiber mix layer 113, banding section bar 114, planking layer 12, the section bar standing groove 2 that bends, the section bar 3 that bends, open slot 31, connect concave station 32, connect reinforcing plate 33, frid 34, scarf 4, angle sign indicating number 5, sticky tape 6, mould 7.

Detailed Description

In order to make the present invention more clear and intuitive for those skilled in the art, the present invention will be further described with reference to the attached drawings.

Example 1

As shown in fig. 1 to 6, the assembled external corner wall panel of this embodiment includes two wall panels 1 arranged side by side, each of the wall panels 1 includes an inner panel layer 11 and an outer panel layer 12 connected tightly in the thickness direction, adjacent positions of the inner panel layers 11 of the two wall panels 1 are respectively provided with a hollow 110, the two hollow 110 are communicated to form a bending section placing groove 2, and a bending section 3 is embedded in the bending section placing groove 2;

the bending section bar 3 is of a long frame structure, an open slot 31 is formed in the inner side of the bending section bar, connecting concave platforms 32 are arranged on two edges of the open slot 31, and connecting threaded holes are formed in the connecting concave platforms 32; the connection concave table 32 is provided with a connection reinforcing plate 33 and is fixed by matching of screws and connection threaded holes. The bent section 3 is made of steel.

When the thickness of the outer plate layer 12 is thicker, in order to prevent the two wall panels 1 from being collided between two adjacent outer plate layers 12 after being bent and form a larger gap between the two outer plate layers 12 to affect the appearance, and simultaneously to ensure that the bending is smoother, the oblique cutting surfaces 4 are respectively reserved at adjacent positions of the two outer plate layers 12, and the two oblique cutting surfaces 4 form a V-shaped groove. Preferably, the inclination of the two chamfer surfaces 4 is 45 degrees.

The outer side surface of the bending section bar 3 is provided with a V-shaped groove structure which enters a V-shaped groove formed by the chamfer surfaces 4 of the two outer plate layers 12. This increases the tightness of the connection between the structures.

The assembled external corner wallboard further comprises an angle code 5, fixing threaded holes are respectively formed in groove edges 34 on two sides of an open groove 31 of the bending section bar 3, after the bending section bar 3 is bent along with the two wallboards 1, the angle code 5 is fixed through matching of screws and the fixing threaded holes, and the bending section bar 3 is guaranteed to be bent to be right-angled and then the whole stability is enhanced. The bending section bar 3 is made of steel and has the characteristic of keeping the right angle shape after being bent into the right angle, and the angle brace 5 can further ensure that the two wall boards 1 are in the right angle state after being bent.

In this embodiment, the outer panel layer 12 is a tile layer or a slate layer. In the present embodiment, the inner panel layer 11 includes, from the outside to the inside, a first mixed polyurethane and glass fiber layer 111, an aluminum honeycomb layer 112, and a second mixed polyurethane and glass fiber layer 113. Specifically, the polyurethane and glass fiber composite layer is made of polyurethane and glass fiber composite materials in the prior art.

In addition, an edge sealing section bar 114 is arranged at one end of the inner plate layer 11 corresponding to the end of the vacancy 110. The edge banding profile 114 is made of steel.

And the outer wall surface of the external corner wallboard is provided with an adhesive tape 6 at the position of a gap formed by the two outer board layers 12.

Example 2

As shown in fig. 7-11, the method for preparing the assembled external corner wall panel of this embodiment includes the following steps:

manufacturing a mould 7 with a bottom plate and four side plates, and flatly paving two adjacent outer plate layers 12 on the mould;

placing edge sealing section bars 114 on the two outer plate layers 12 close to the two side plates of the die, and placing bending section bars 3 at the contact positions of the two outer plate layers 12;

laying glass fibers flat and spraying fully stirred bi-component polyurethane: the total amount of polyurethane sprayed on each square of glass fiber is 800g, wherein the polyether polyol A material: the polyisocyanate B material is prepared from the following raw materials in a mass ratio of 1: mixing at the optimal ratio of 1.05, placing the two materials in a stirring barrel, fully stirring and mixing, and spraying the two materials on glass fibers through a pipeline and quantitative spraying equipment; the polyether polyol A material is white material, is selected from polyurethane of Polyke of Guangzhou city, and has the product name of TD-1329.4; the polyisocyanate B is a black material, is selected from Wanhua chemical group GmbH and has a product name of PM-200.

Continuously laying the aluminum honeycomb to form an aluminum honeycomb layer 112;

repeating the operation of spreading the glass fibers on the aluminum honeycomb layer 112 and spraying the fully-stirred double-component polyurethane;

and (4) after the materials are distributed, sending the die into a flat press, and demolding after the die is processed by the flat press to obtain the external corner wallboard.

Further, the adhesive tape 6 is adhered to the position of the gap formed by the two outer plate layers 12 on the outer wall surface of the external corner wallboard.

The total thickness of the external corner wallboard prepared by the flat press is 40mm: 10mm of tile surface layer, 0.5mm of first polyurethane and glass fiber mixed layer, 29.5mm of aluminum honeycomb layer and 0.5mm of second polyurethane and glass fiber mixed layer, which are 40.5mm in sum, but all the layers are laid well and then sent to a press machine to be pressed, kept warm and kept pressure for more than ten minutes during production, and the finished product is 40mm thick; or the surface layer of the ceramic tile is 12mm, the thickness of the aluminum honeycomb is changed into 27.5mm, and finally the thickness of the finished product is also 40 mm.

Example 3

The use method of the assembled external corner wallboard comprises the following steps:

after the external corner wall panel is transported to an installation site, the connecting reinforcing plate 33 on the external corner wall panel is removed, the external corner wall panel is bent by 90 degrees, and the angle of the external corner wall panel is fixed on the bent section bar 3 by using the angle connector 5;

after the external corner wallboard is fixed, assembling the external corner wallboard to a corresponding indoor position, and finally tearing off the special adhesive tape 6;

finally, seam beautifying and closing are carried out on the seam between two adjacent outer plate layers 12 by using seam beautifying agent.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The assembled external corner wallboard is characterized by comprising two wallboards which are arranged side by side, wherein each wallboard comprises an inner board layer and an outer board layer which are tightly connected in the thickness direction, the adjacent positions of the inner board layers of the two wallboards are respectively provided with a vacant position, the two vacant positions are communicated to form a bending section placing groove together, and a bending section is embedded in the bending section placing groove;

the bending section bar is of a long frame structure, an open slot is formed in the inner side of the bending section bar, connecting concave platforms are arranged on two edges of the open slot, and connecting threaded holes are formed in the connecting concave platforms;

and the connection concave table is provided with a connection reinforcing plate and is fixed by matching a screw with the connection threaded hole.

2. An assembled external corner wall panel according to claim 1, wherein the two outer skin layers are each provided with a chamfer of 45 ° in adjacent position, the two chamfers forming a "V" shaped groove.

3. An assembled external corner wall panel according to claim 2, wherein the outer side of the bent section has a "V" shaped groove structure which enters a "V" shaped groove formed by two chamfered faces.

4. The assembled external corner wallboard of claim 1, further comprising a corner brace, wherein fixing threaded holes are respectively formed in two side groove edges of the opening groove of the bending section bar, and after the bending section bar is bent along with the bending of the two wallboards, the corner brace is fixed through matching of screws and the fixing threaded holes.

5. An assembled external corner panel according to claim 1, wherein the outer skin layer is a tile or slate layer.

6. The fabricated external corner wallboard of claim 1, wherein the inner ply comprises, from outside to inside, a first mixed polyurethane and glass fiber layer, an aluminum honeycomb layer, and a second mixed polyurethane and glass fiber layer.

7. An assembled external corner wall panel according to claim 1, wherein the inner skin layer is provided with an edge banding profile at one end corresponding to the end where the void is located.

8. The prefabricated external corner wall panel of claim 1, wherein the external wall surface of the external corner wall panel is provided with adhesive tape at the position of the gap formed by the two external plate layers.

9. A preparation method of an assembled external corner wallboard is characterized by comprising the following steps:

manufacturing a mould with a bottom plate and four side plates, and flatly laying two adjacent outer plate layers on the mould;

placing edge sealing sectional materials at positions, close to two side plates of the die, on the two outer plate layers, and placing bending sectional materials at contact positions of the two outer plate layers;

laying glass fiber, and spraying the fully stirred bi-component polyurethane;

continuously laying aluminum honeycombs;

continuously repeating the operation of spreading the glass fiber on the aluminum honeycomb and spraying the fully-stirred double-component polyurethane;

and (4) after the materials are distributed, sending the die into a flat press, and demolding after the die is processed by the flat press to obtain the external corner wallboard.

10. The method of making an assembled external corner panel of claim 9, further comprising the steps of: and (3) sticking adhesive tapes at the gap formed by the two outer plate layers on the outer wall surface of the external corner wallboard.

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