Longitudinal corner sandwich panel

Abstract

The embodiment of the utility model provides a longitudinal corner sandwich panel which comprises a sandwich layer, a metal outer plate wrapped on the outer side of the sandwich layer and a metal inner plate group wrapped on the inner side of the sandwich layer. The sandwich layer comprises a first side plate, a second side plate forming a first included angle with the first side edge, and a filling piece located between the first side plate and the second side plate. A groove with an inverted trapezoidal cross section required by punching and bending can be longitudinally processed on the inner side of a common sandwich plate, a metal inner plate and a sandwich layer of the common sandwich plate are cut off, and a metal outer plate is not cut off. The side face, connected with the filling piece, of the first side plate and the side face, connected with the filling piece, of the second side plate are both half of the first included angle, so that a punch can conduct punching along the center of the first side plate and the center of the second side plate, and the forming quality of the first included angle is guaranteed. And then the metal inner plate group is mounted for limiting at the first angle, so that the longitudinal corner sandwich plate at the preset angle is obtained, the manufacturing is easy, a production line does not need to be newly added, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of building materials, in particular to a longitudinal corner sandwich panel. Background Art

[0002] Because sandwich panels are short in the horizontal direction, it is relatively easy to create horizontal corners on them. However, in some cases, it is necessary to create vertical corners on sandwich panels, such as when wrapping structures for pipes or columns. Due to the limited vertical length of the sandwich panels, creating vertical corners on sandwich panels is not only difficult to manufacture but also requires the construction of new production lines, which is very costly. Utility Model Content

[0003] In view of the above problems, embodiments of the present invention are proposed. The purpose of the embodiments of the present invention is to provide a longitudinal corner sandwich panel that is easy to manufacture and low in cost.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A longitudinal corner sandwich panel, comprising:

[0006] A sandwich layer, a metal outer plate wrapped around the outer side of the sandwich layer, and a metal inner plate group wrapped around the inner side of the sandwich layer;

[0007] In the transverse direction, the sandwich layer includes a first side panel, a second side panel forming a first angle with the first side panel, and a filler located between the first side panel and the second side panel, and the side surface where the first side panel is connected to the filler and the side surface where the second side panel is connected to the filler are both half of the first angle;

[0008] The metal inner plate group can limit the size of the first angle.

[0009] Preferably, there are at least one first side panel and at least one second side panel, the first side panels and the second side panels are alternately connected, and the first angles at different positions may be the same or different.

[0010] Optionally, the first angle is one of an acute angle, a right angle, and an obtuse angle.

[0011] Optionally, the inner plate group includes:

[0012] A corner reinforcement plate is located at the connection between the first side plate and the second side plate. The corner reinforcement plate includes two reinforcement surfaces at the first angle, one of which is connected to the first side plate, and the other is connected to the second side plate.

[0013] Optionally, the first angles of the corner reinforcement plates at different positions may be the same or different.

[0014] Optionally, the corner reinforcement plate is made of galvanized steel plate or aluminum alloy.

[0015] Optionally, the metal inner plate group further includes:

[0016] a first inner panel affixed to the inner side of the first side panel;

[0017] a second inner panel affixed to the inner side of the second side panel;

[0018] The two reinforcement surfaces of the corner reinforcement plate are respectively connected to the first side plate through the first inner plate, and connected to the second side plate through the second inner plate;

[0019] The number of the first inner panels matches the number of the first side panels, the number of the second inner panels matches the number of the second side panels, and the first inner panels and the second inner panels are alternately connected.

[0020] Optionally, the filler and the first side panel and the second side panel may be made of the same material or different materials.

[0021] Optionally, the filling piece is made of rock wool; or

[0022] The filling piece is foamed rubber.

[0023] Optionally, the sandwich layer also includes a first filling layer and a second filling layer, the first filling layer and the second filling layer respectively corresponding to the two sides of the sandwich layer, one of the first filling layer and the second filling layer is a female buckle structure, and the other is a male buckle structure matching the female buckle structure.

[0024] The technical solution provided by the embodiment of the present invention is to provide a sandwich layer including a first side panel, a second side panel at a first angle to the first side, and a filler located between the first and second side panels, so that the longitudinal corner sandwich panel can be processed longitudinally on the inner side of the ordinary sandwich panel to form a groove with an inverted trapezoidal cross section required for stamping and bending according to the size requirements. The metal inner panel and the sandwich layer of the ordinary sandwich panel are cut off, while the metal outer panel is not cut off. The inverted trapezoidal groove can avoid the arc of the punch end during stamping. By setting the side surface connecting the first side panel and the filler and the side surface connecting the second side panel and the filler to half of the first angle, the punch can be stamped along the center of the first and second side panels, thereby ensuring the quality of the first angle. After stamping and bending, the filler is filled into the gap at the bend and then the metal inner panel group is installed to limit the first angle to obtain a longitudinal corner sandwich panel with a preset angle. The manufacturing is easy and secondary processing can be performed on the ordinary sandwich panel without adding a new production line, which is low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1a-1b A schematic diagram of the longitudinal corner sandwich panel structure provided by one embodiment of the present utility model;

[0027] Figure 2a-2b This is a schematic structural diagram of a longitudinal corner sandwich panel provided by an embodiment of the present invention when it is not bent at a right angle.

[0028] In the picture:

[0029] 1. Metal outer panel; 2. Sandwich layer; 3. Metal inner panel group;

[0030] 21. First side panel; 22. Second side panel; 23. Filling member; 24. First filling layer; 25. Second filling layer;

[0031] 31. First inner panel; 32. Second inner panel; 33. Corner reinforcement panel. DETAILED DESCRIPTION

[0032] Conventional sandwich panels are easy to manufacture because they are flat-plate-shaped, with a similarly flat core layer. These panels are simply clad with metal sheets on both the inner and outer sides of the flat core layer. However, the presence of the first angle in longitudinally angled sandwich panels makes the core layer difficult to manufacture, leading to difficulties in manufacturing longitudinally angled sandwich panels. Furthermore, since most current production lines are dedicated to producing conventional, flat-plate sandwich panels, manufacturing longitudinally angled sandwich panels would require the investment of new production lines, consuming significant manpower, material, and financial resources.

[0033] In view of this, the inventors of this application attempted to improve the original sandwich panel to obtain a longitudinal corner sandwich panel in the form of secondary processing, which can fully utilize the original production line and meet manufacturing needs, and thus the following embodiments were developed.

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0035] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0036] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0038] The embodiment of the present application provides a longitudinal corner sandwich panel, such as Figure 1a-1b As shown, the longitudinal corner sandwich panel includes a sandwich layer 2, a metal outer plate 1 wrapped around the outside of the sandwich layer 2, and a metal inner plate group 3 wrapped around the inside of the sandwich layer. The sandwich layer 2 includes a first side plate 21, a second side plate 22 forming a first angle with the first side plate 21, and a filler 23 located between the first side plate 21 and the second side plate 22. The side surface where the first side plate 21 connects to the filler 23 and the side surface where the second side plate 22 connects to the filler 23 are both half of the first angle. Figure 2a-2b The dimensions of the longitudinal corner sandwich panel when laid flat are shown. A groove of the shape required for the first angle is machined longitudinally at the corresponding position on the inner side of the flat sandwich panel. In this process, the metal inner plate and the sandwich layer of the flat sandwich panel are cut, while the outer metal plate is not cut. For example, please refer to Figure 2aAs shown, when the first angle is a right angle, a 45-degree isosceles right triangle is cut between the first side panel 21 and the second side panel 22, that is, a 45-degree bevel is cut on the first side panel 21, and a 45-degree bevel is cut on the second side panel 22. Then, the first side panel 21 or the second side panel 22 is folded 90° at the right angle point, so that the side of the first side panel 21 at the cut is in contact with the side of the second side panel 22 at the cut. However, since sandwich panels are usually made of rock wool and have weak rigidity, it is very likely that when the first side panel 21 or the second side panel 22 is folded 90°, it is not bent at the theoretical bending point (as shown in Figure 2), which will cause product quality problems. In order to solve this problem, the inventor of this application places the cut sandwich panel on a folding press for pressing and bending. The folding press is provided with a lower die and an upper die that moves up and down. The cross-section of the lower die is an isosceles triangle groove, and the cross-section of the upper die is an isosceles triangle bulge that matches the lower die. When pressing and bending, the bent part of the cut sandwich panel is placed on the lower die, and the center of the bend is aligned with the fixed point position of the lower die triangle. The upper die moves downward and abuts against the outer plate of the sandwich panel and then continues downward to achieve a certain angle between the first side panel 21 and the second side panel 22 of the sandwich layer 2. In order to ensure the demolding of the upper die, it is not necessary to stamp the outer metal plate into a precise first angle. It can be an angle close to the first angle, so as to facilitate the demolding of the upper die. After the stamping is completed, the bending angle can be limited to the precise first angle by installing the metal inner plate group. Since the right angle point of the isosceles right angle of the upper mold is not a sharp corner but has an arc transition, in order to prevent the transition arc from crushing the side abutment where the first side plate 21 and the second side plate are connected, there is a gap at the connection between the first side plate 21 and the second side plate 22. In other words, please refer to Figure 2b As shown, during cutting, an inverted trapezoidal groove with a length of half the first angle is cut between the first side panel 21 and the second side panel 22. After bending, a gap is formed at the connection between the first side panel 21 and the second side panel 22. The outer metal sheet at this gap abuts the transition arc of the upper die. After bending, a gap with a length of half the first angle is left between the first side panel 21 and the second side panel 22. The filler 23 can fill this gap, thereby forming a sandwich layer 2 with the first angle.

[0039] The first angle may be an acute angle, a right angle or an obtuse angle. Any angle may be selected according to actual needs, and this application does not make any specific limitation on this.

[0040] After bending, due to the material properties, it is very likely that the first angle formed by the stamping is not accurate due to the material's rebound properties. Therefore, in some embodiments of the present application, the metal inner plate group can limit the size of the first angle. After the sandwich layer 2 with the first angle is formed, the metal inner plate group 3 is assembled to limit the positions of the adjacent first side panels 21 and the second side panels 22, thereby ensuring that the angle of the longitudinal corner sandwich panel is limited to the first angle.

[0041] Specifically, since the longitudinal corner sandwich panel is processed from an ordinary sandwich panel, part of the metal inner plate of the original sandwich panel is preserved. For ease of understanding and description, please refer to Figure 2b As shown, the metal inner plate located on the first side panel 21 is defined as the first inner plate 31, and the metal inner plate located on the second side panel 22 is defined as the second inner plate 32. In some embodiments of the present application, the metal inner plate group 3 includes a first inner plate 31 affixed to the inner side surface of the first side panel 21, a second inner plate 32 affixed to the inner side surface of the second side panel 22, and a corner reinforcement plate. The number of the first inner plates 31 matches the number of the first side panels 21, the number of the second inner plates 32 matches the number of the second side panels 22, and the first inner plates 31 and the second inner plates 32 are alternately connected. The corner reinforcement plate 33 is located at the connection between the first side panel 21 and the second side panel 22. The corner reinforcement plate 33 includes two reinforcement surfaces at a first angle, one of which is connected to the first inner plate 31, and the other is connected to the second inner plate 32. One of the two reinforcing surfaces of the corner reinforcing plate 33 is connected to the first side panel 21 through the first inner panel 31, and the other is connected to the second side panel 22 through the second inner panel 32, so as to reinforce the structural shape of the longitudinal corner sandwich panel at the corner, so that the corner of the longitudinal corner sandwich panel is maintained at the first angle.

[0042] It is understandable that limiting the angle between the first side panel 21 and the second side panel 22 to a precise first angle is defined by the angles of the two reinforcing surfaces of the corner reinforcement plate 33. Therefore, when ordinary sandwich panels are cut and stamped, it is sufficient to ensure the accuracy of the stamping position and the bending trend. In this way, the bending point of the bend can be determined. Even after stamping, even if the corner reinforcement plate 33 is installed, it will bend at the original bending point, and no new bending point will appear. Based on this, the angle of the stamping mold can also be different from the first angle. Then, when different first angles are located at different positions on the longitudinal corner sandwich panels, or different corner sandwich panels have different first angles, the same stamping and bending equipment can be used for stamping and bending.

[0043] In some embodiments of the present application, a longitudinal corner sandwich panel may have a single corner or multiple corners, and the angles (i.e., first angles) of the different corners may be the same or different. This allows the longitudinal corner sandwich panel structure to be manufactured according to customer needs by simply installing corner reinforcement panels with the desired first angles at different corners. Therefore, the first angles of the different corner reinforcement panels of the present application may be the same or different. Of course, if the angles of the corners on different corner sandwich panels are different, corner reinforcement panels with different first angles may also be used.

[0044] In some embodiments of the present application, the corner reinforcement plate 33 is made of galvanized steel plate, which is rigid and corrosion-resistant, or the corner reinforcement plate 33 is made of aluminum alloy, which is light in weight, the same material as the metal plate, and easy to process, without the need to purchase new metal plates.

[0045] In some embodiments of the present application, the filler 23 is made of the same material as the first side panel 21 and the second side panel 22, namely rock wool. The cut rock wool can be refilled to form the filler 23, thereby reusing the rock wool and preventing waste. The filler 23 can also be made of a different material than the first side panel 21 and the second side panel 22. The filler 23 can be filled with foam, so that the gap between the first side panel 21 and the second side panel 22 can be more tightly filled, ensuring that there are no gaps in the entire right-angle corner sandwich layer 2.

[0046] In some embodiments of the present application, Figure 1a-1b As shown, the longitudinal corner sandwich panels can be L-shaped. Four L-shaped longitudinal corner sandwich panels are interlocked end-to-end to form a hollow sandwich column, which can enclose pipes, columns, and other structures within metal buildings. The longitudinal corner sandwich panels can also be U-shaped. Two U-shaped longitudinal corner sandwich panels are interlocked to form a hollow sandwich column. Typically, the size of the hollow sandwich column is slightly larger than the pipe or other material to be enclosed, ensuring that it can be enclosed.

[0047] In order to facilitate the connection between two adjacent longitudinal corner sandwich panels, or the connection between a longitudinal corner sandwich panel and an ordinary sandwich panel, in some embodiments of the present application, such as Figure 1a-1bAs shown, the sandwich layer 2 also includes a first filling layer and a second filling layer, and the first filling layer and the second filling layer correspond to the two sides of the sandwich layer 2 respectively. One of the first filling layer and the second filling layer is a female buckle structure, and the other is a male buckle structure that matches the female buckle structure. Since the rock wool material sandwich layer 2 is not easy to take on a certain shape, the metal outer plate 1 and the metal inner plate of the flat sandwich panel are punched into a shape that can be enclosed into a male buckle structure or a female buckle structure before covering the sandwich layer 2. Therefore, the two sides of the sandwich layer 2 are made of foamed rubber, which is not only structurally reliable, but also has good waterproof properties, preventing liquid from entering the junction of the metal inner and outer plates and affecting the sandwich layer 2.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A longitudinal corner sandwich panel, characterized in that: include: A sandwich layer, a metal outer plate wrapped around the outer side of the sandwich layer, and a metal inner plate group wrapped around the inner side of the sandwich layer; In the transverse direction, the sandwich layer includes a first side panel, a second side panel forming a first angle with the first side panel, and a filler located between the first side panel and the second side panel, and the side surface where the first side panel is connected to the filler and the side surface where the second side panel is connected to the filler are both half of the first angle; The metal inner plate group can limit the size of the first angle.

2. The longitudinal corner sandwich panel according to claim 1, characterized in that: There are at least one first side panel and at least one second side panel. The first side panels and the second side panels are alternately connected. The first angles at different positions may be the same or different.

3. The longitudinal corner sandwich panel according to claim 1, characterized in that: The first angle is one of an acute angle, a right angle, and an obtuse angle.

4. The longitudinal corner sandwich panel according to any one of claims 1 to 3, characterized in that: The inner plate group includes: A corner reinforcement plate is located at the connection between the first side plate and the second side plate. The corner reinforcement plate includes two reinforcement surfaces at the first angle, one of which is connected to the first side plate, and the other is connected to the second side plate.

5. The longitudinal corner sandwich panel according to claim 4, characterized in that: The first angles of the corner reinforcement plates at different positions may be the same or different.

6. The longitudinal corner sandwich panel according to claim 4, characterized in that: The corner reinforcement plate is made of galvanized steel plate or aluminum alloy.

7. The longitudinal corner sandwich panel according to claim 4, characterized in that: The metal inner plate group further includes: a first inner panel affixed to the inner side of the first side panel; a second inner panel affixed to the inner side of the second side panel; The two reinforcement surfaces of the corner reinforcement plate are respectively connected to the first side plate through the first inner plate, and connected to the second side plate through the second inner plate; The number of the first inner panels matches the number of the first side panels, the number of the second inner panels matches the number of the second side panels, and the first inner panels and the second inner panels are alternately connected.

8. The longitudinal corner sandwich panel according to any one of claims 1 to 3, characterized in that: The filler and the first side plate and the second side plate may be made of the same material or different materials.

9. The longitudinal corner sandwich panel according to any one of claims 1 to 3, characterized in that: The filling piece is made of rock wool; or The filling piece is foamed rubber.

10. The longitudinal corner sandwich panel according to any one of claims 1 to 3, characterized in that: The sandwich layer also includes a first filling layer and a second filling layer, and the first filling layer and the second filling layer correspond to the two sides of the sandwich layer respectively. One of the first filling layer and the second filling layer is a female buckle structure, and the other is a male buckle structure matching the female buckle structure.

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