Lightweight high-strength polyester material plate structure and preparation method thereof

Abstract

The invention relates to the technical field of polyester material plate structures, in particular to a light and high-strength polyester material plate structure and a preparation method thereof.The light and high-strength polyester material plate structure structurally comprises two mounting plates, two side sealing plates and a base core plate, and the base core plate is arranged between the two mounting plates; the upper end and the lower end of the base core plate are connected with the opposite sides of the two installation plates respectively, and the base core plate and the two installation plates are located between the two side sealing plates. The preparation method comprises the steps of material preparation, injection molding preparation, gluing connection, plate assembly and stable pressure reinforcement. The connecting firmness between the components can be fully achieved through ingenious arrangement of the components, smoothness of the edges of the components is guaranteed, meanwhile, the overall strength of the components can be improved through arrangement of the reinforcing components, meanwhile, through arrangement of the reinforcing components, holes and grooves in the components can be formed, the overall weight is fully reduced, and the service life of the components is prolonged. The use is convenient.

Description

Technical Field

[0001] This invention relates to the field of polyester material board structure technology, and in particular to a lightweight and high-strength polyester material board structure and its preparation method. Background Technology

[0002] Polyester-based engineered wood panels can replace traditional wood-based panels. Through artificial synthesis, the material's properties can be adjusted to achieve desired performance. Especially with mature technology and relatively low cost, polyester engineered wood panels can be used for interior decoration and non-load-bearing wall construction. Polyester engineered wood panels have a discontinuous structure, and compared to natural wood panels, their compressive and flexural strengths are more uniform and stable in all directions, making them suitable for high-strength applications.

[0003] In related technologies, polyester engineered wood panels are mainly processed using hot pressing equipment. During processing, the raw materials of the polyester engineered wood panel are laid in layers inside the forming equipment. After the layers are laid, the hot pressing equipment is controlled to connect with the forming equipment. After connection, the raw materials are heated by heating equipment, which, together with the hot pressing equipment, melts the raw materials, thus completing the hot pressing forming of the polyester fiber raw materials.

[0004] Existing polyester engineered wood panels made from polyester materials have low strength and hardness. This is because foaming agents are added to the material during the manufacturing process to facilitate expansion, but this leads to unstable expansion and inconsistent internal quality. Furthermore, hot pressing can cause uneven cooling of the panel, further reducing its strength. Therefore, improvements are needed. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a lightweight and high-strength polyester material board structure and its preparation method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A lightweight and high-strength polyester material board structure includes two mounting plates, two side sealing plates, and a core plate. The core plate is disposed between the two mounting plates, and its upper and lower ends are respectively connected to opposite sides of the two mounting plates. The core plate and the two mounting plates are located between the two side sealing plates, and the side sealing plates are disposed through the two mounting plates. The side sealing plates are connected to one side of the core plate. The core board includes two polyester core boards. Multiple anti-bending members are evenly spaced on the polyester core boards. Each anti-bending member has an installation groove, and a first polyester reinforcing rib is installed in the installation groove. The side sealing plate is provided with multiple connecting pipes at both the upper and lower ends of the side near the base core plate. Multiple insertion pipes are provided through the polyester base core plate and the connecting pipes located on the same side. The insertion pipes include polyester pipes, and a second polyester reinforcing rib is installed inside the polyester pipe.

[0007] Compared with the prior art, this application can achieve a strong connection between components through the ingenious arrangement of components and ensure the smoothness of component edges. At the same time, by strengthening the components, the overall strength of the components can be improved. Furthermore, by strengthening the components, holes and grooves can be set on the components, which can significantly reduce the overall weight for easy use.

[0008] Preferably, the mounting plate includes a heat insulation plate, which is provided on both sides; the side sealing plate includes a polyester sealing plate; the connecting pipe and the polyester sealing plate are fixedly connected; the polyester sealing plate is U-shaped; and the two horizontal ends inside the polyester sealing plate are respectively provided through the two heat insulation plates on the same side. The top and bottom ends of the polyester sealing plate are respectively flush with the two heat insulation plates.

[0009] Furthermore, the specifications are the same as those of the horizontal end of the polyester closed panel, which can fully realize the splicing between them while ensuring tight contact. Moreover, when applying glue, the glue can be applied to the inside of the polyester closed panel so as to contact the two polyester core boards, ensuring that the vertical end can fully contact the two polyester core boards. In actual operation, multiple holes parallel to the horizontal end of the polyester sealing plate can be set at equal intervals on the polyester sealing plate to effectively reduce weight.

[0010] Preferably, multiple snap-fit ​​slots are evenly spaced at opposite ends of the two polyester core boards, and multiple anti-bending components on one polyester core board are respectively installed through multiple snap-fit ​​slots on the other polyester core board. Two through holes are provided between two adjacent snap-fit ​​slots on the same polyester core board. The connecting pipe extends into its multiple through holes, and two connecting pipes are respectively fixedly connected to two polyester closed plates.

[0011] Furthermore, the snap-fit ​​groove is trapezoidal, and the anti-bending component can be inserted through the snap-fit ​​groove to complete the connection between the two polyester core boards. Through the cooperation of the anti-bending component and the polyester core board, the polyester core board can only move in the longitudinal direction of the anti-bending component. In practice, the connection quality can be ensured by applying an adhesive to the anti-bending parts and the opposite sides of the two polyester core boards.

[0012] Preferably, the polyester core board, the connecting pipe located in the polyester core board, and the anti-bending component are all provided with insertion holes, and the insertion pipe is disposed through the corresponding insertion hole. The polyester core board has multiple insertion holes at equal intervals, the insertion pipe fitting is disposed through the insertion holes, and the connecting pipe has multiple through holes at equal intervals, the through holes and the insertion holes having the same specifications. Multiple insertion holes located on the same through hole correspond one-to-one with multiple through holes on two connecting pipes located within the same through hole.

[0013] Furthermore, when the connecting pipe is inserted into the corresponding anti-bending component, the insertion pipe fitting can be inserted into the corresponding insertion hole, allowing the insertion pipe fitting to pass through one of the polyester core boards and the corresponding connecting pipe. At the same time, the insertion pipe fitting can also pass through the anti-bending component on the other polyester core board. This prevents the polyester core board from moving in the longitudinal direction of the anti-bending component and effectively limits the position of the side sealing plate. In other words, the insertion pipe fitting can achieve the connection and fixation of the mounting plate, side sealing plate, and core board.

[0014] Preferably, the lengths of the two connecting pipes located within the same through hole are less than the length of the through hole; The connecting pipe is constructed using a pipe body.

[0015] Furthermore, the use of connecting pipes can reduce the overall weight, thus helping to fully realize the overall weight reduction.

[0016] Preferably, an adhesive layer is provided between the base core board and the mounting plate, between the side sealing plate and the mounting plate and the base core board, between the two polyester base core boards, and between the insertion pipe and the base core board.

[0017] Furthermore, the colloid can ensure the connection effect, namely on the opposite side of the mounting plate and the core plate; on the opposite side of the two polyester core plates; on the opposite side of the polyester sealing plate and the core plate; and on the outside of the insertion pipe fitting. In practice, applying an adhesive layer only to the outside of the connector can also ensure a strong connection.

[0018] Preferably, the cross-sections of the snap-fit ​​groove and the anti-bending component are both trapezoidal, and the cross-sectional specifications of the snap-fit ​​groove and the anti-bending component are the same; The polyester-based core board and multiple bending-resistant components on the polyester-based core board are integrally formed; The upper end of the anti-bending component has grooves on both sides.

[0019] Furthermore, the trapezoidal design allows for a secure connection between the two polyester core boards, while the grooves reduce the overall weight.

[0020] Preferably, the polyester tube and the second polyester reinforcing rib are integrally formed, and the second polyester reinforcing rib is arranged in a V-shape.

[0021] Furthermore, the V-shaped second polyester reinforcing rib can improve the strength of the insertion pipe fitting. At the same time, the increased strength of the insertion pipe fitting can improve the overall strength of the polyester core board.

[0022] Preferably, the snap-fit ​​groove has notches on both sides, and the notches are provided on the polyester core board.

[0023] Furthermore, the overall weight is reduced by using notches.

[0024] This invention also proposes a method for preparing a lightweight and high-strength polyester material plate structure, applicable to the aforementioned lightweight and high-strength polyester material plate structure, comprising the following steps: S1. Material preparation: Prepare phthalic acid, ethylene glycol, catalyst, flame retardant, glass fiber reinforced PBT, alloy powder, graphene, talc, reinforcing agent and binder materials in precise proportions, and add the materials into the injection molding equipment; S2. Injection Molding Preparation: Different injection molds are set according to different parts so that the injection molding equipment heats the material to a molten state and delivers it into the injection mold, and controls the heat dissipation equipment to achieve uniform heat dissipation of the injection molded product; S3. Adhesive application and connection: Clean the surface of the injection molded product after heat dissipation, remove burrs, and apply adhesive to the injection molded product using adhesive application equipment to facilitate the splicing of the injection molded products. S4. Panel Assembly: Assemble two polyester core panels so that the bending-resistant component is inserted into the snap-fit ​​groove in the other polyester core panel, and control the edges of the two polyester core panels to be aligned. At the same time, make the two mounting plates fit against the upper and lower ends of the two polyester core panels respectively. Also, make the four connecting pipes and through holes on the side sealing plate correspond to each other, so that the edges of the polyester sealing plate, the core panel and the mounting plate abut against each other. At the same time, make the horizontal ends of the upper and lower ends of the polyester sealing plate insert into the corresponding two holes, and control the insertion pipe to pass through the insertion hole so that the insertion pipe can fully penetrate the core panel. The excess insertion pipe is then removed by the cutting component. S5. Pressure Stabilization and Reinforcement: Place the assembled components into the pressure-pressurizing components to perform pressure stabilization and compression operations on the components. After the adhesive layer dries, remove the components and clean up any overflowing adhesive layer.

[0025] Compared with existing technologies, this application can improve the overall strength of injection molding plastics by using alloy powder, graphene and reinforcing agents. Furthermore, by using precise proportions and injection molding equipment, it can achieve uniform injection of materials, resulting in balanced quality in all parts of the injection molded product. The connection strength between components is strengthened by overall assembly and gluing, and each part is fully fixed by pressure stabilization and reinforcement.

[0026] The beneficial effects of this invention are: 1. Through the ingenious design of each component, the strength of the component is improved. By splicing, the strength in different directions can be combined, that is, the cooperation of the first polyester reinforcing rib and the second polyester reinforcing rib to improve the overall strength. 2. The use of notches, connecting pipes, polyester fittings, and grooves can effectively reduce the weight of the plate structure at various locations, thus significantly reducing the overall weight of the components. 3. Injection molding allows for the thorough mixing of multiple materials, ensuring uniform quality across all parts of the injection-molded product. 4. The structure allows for timely application of adhesive as needed. The entire connection and fixation can be completed by applying adhesive to the polyester pipe fittings, and adhesive can also be applied to the contact points to improve the strength of the connection. Attached Figure Description

[0027] Figure 1 This is a structural diagram of a lightweight and high-strength polyester material board structure proposed in this invention; Figure 2 This is a connection structure diagram of the mounting plate and the core plate in a lightweight and high-strength polyester material plate structure proposed in this invention; Figure 3 This is a cross-sectional view of the core plate component in a lightweight and high-strength polyester material plate structure proposed in this invention. Figure 4 Appendix to this invention Figure 2 Enlarged view of point A; Figure 5 This is a structural diagram of a bending-resistant component in a lightweight and high-strength polyester material board structure proposed in this invention; Figure 6 This is a flowchart illustrating the steps of a method for preparing a lightweight and high-strength polyester material board structure proposed in this invention. In the diagram: 1 Mounting plate, 11 Insulation plate, 2 Side sealing plate, 21 Polyester sealing plate, 22 Connecting pipe, 23 Through hole, 3 Core board, 31 Polyester core board, 311 Snap-fit ​​groove, 312 Insertion hole, 313 Notch, 32 Bending resistance component, 321 Mounting groove, 322 First polyester reinforcing rib, 323 Bending resistance component, 324 Groove, 33 Through hole, 4 Insertion pipe fitting, 41 Polyester pipe fitting, 42 Second polyester reinforcing rib, 5 Adhesive layer. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Reference Figure 1-5 A lightweight and high-strength polyester material board structure includes two mounting plates 1, two side sealing plates 2, and a core plate 3. The mounting plates 1 can be selected as suitable decorative or protective panels as needed, and can be made of panels with appropriate functions, such as fire resistance or corrosion resistance. The mounting plates 1 are made of lightweight materials. The core plate 3 is positioned between the two mounting plates 1, with its upper and lower ends connected to opposite sides of the two mounting plates 1. The connection method between the core plate 3 and the mounting plates 1 can be customized as needed. The connection is achieved by setting an adhesive layer 5, and the horizontal end of the side sealing plate 2 is also provided with a snap-fit ​​structure, which can be mechanically squeezed and fixed. The base core plate 3 and the two mounting plates 1 are located between the two side sealing plates 2. The side sealing plates 2 and the base core plate 3 are inserted together, and the side sealing plates 2 are fixed by inserting the insertion pipe 4 into the base core plate 3. The side sealing plates 2 are installed through the two mounting plates 1, and the side sealing plates 2 and the base core plate 3 are connected on one side. After the insertion pipe 4 is installed through the plate, the connection and fixation of the components can be completed by insertion.

[0030] In this embodiment, the core board 3 includes two polyester core boards 31. Multiple anti-bending members 32 are evenly spaced on the polyester core boards 31. The polyester core boards 31 and the anti-bending members 32 are integrally formed, ensuring a strong connection. Each anti-bending member 32 includes an anti-bending member 323, which is trapezoidal in shape and corresponds to the trapezoidal shape of the snap-fit ​​groove 311, facilitating interlocking. An installation groove 321 is provided on the anti-bending member 323, and a first polyester reinforcing rib 322 is installed within the installation groove 321. The first polyester reinforcing rib 322 can be an inverted W-shaped reinforcing member, reducing the overall weight of the anti-bending member 32 while increasing its overall strength. The multiple first polyester reinforcing ribs 322... The device can reduce the overall weight of the core board 3 while ensuring its bending strength. The side sealing plate 2 has multiple connecting pipes 22 at both the upper and lower ends of the side close to the core board 3. Multiple insertion pipes 4 are connected through the polyester core board 31 and the connecting pipes 22 on the same side. The insertion pipes 4 include polyester pipes 41, and a second polyester reinforcing rib 42 is installed inside the polyester pipes 41. The specifications of the connecting pipes 22 are larger than those of the polyester pipes 41, so that the polyester pipes 41 can pass through the polyester sealing plate 21. The strength of the insertion pipes 4 can be improved by the second polyester reinforcing rib 42 inside the polyester pipes 41. The insertion pipes 4 and the first polyester reinforcing ribs 322 are set perpendicular to each other to effectively improve the overall bending strength.

[0031] In this embodiment, the mounting plate 1 includes a heat insulation plate 11, with 12 openings on both sides of the heat insulation plate 11. The side sealing plate 2 includes a polyester sealing plate 21. The connecting pipe 22 is fixedly connected to the polyester sealing plate 21. The polyester sealing plate 21 and the connecting pipe 22 are integrally formed to ensure the strength of the connection. The polyester sealing plate 21 is U-shaped. The two horizontal ends inside the polyester sealing plate 21 are respectively inserted through the 12 on the same side of the two heat insulation plates 11. The horizontal ends of the polyester sealing plate 21 can be inserted into the 12, so that the heat insulation plate 11 can be squeezed and fixed.

[0032] The top and bottom ends of the polyester sealing panel 21 are flush with the two heat insulation panels 11, respectively. The specification of 12 is the same as that of the horizontal end of the polyester sealing panel 21, which can fully realize the splicing between them and ensure tight contact. Moreover, when applying adhesive, the adhesive can be applied to the inside of the polyester sealing panel 21 so as to contact 12 and the two polyester core panels 31, ensuring that the vertical end of 12 can fully contact the two polyester core panels 31. At the same time, in actual operation, multiple holes parallel to the horizontal end of the polyester sealing panel 21 can be set at equal intervals on the polyester sealing panel 21 to effectively reduce weight.

[0033] In this embodiment, multiple snap-fit ​​grooves 311 are equally spaced at opposite ends of two polyester core boards 31. Multiple anti-bending members 32 on one polyester core board 31 are respectively disposed through multiple snap-fit ​​grooves 311 on the other polyester core board 31. Two through holes 33 are provided between two adjacent snap-fit ​​grooves 311 on the same polyester core board 31. The connecting pipe 22 extends into its multiple through holes 33, and the two connecting pipes 22 are respectively fixedly connected to the two polyester closed plates 21; the snap-fit ​​groove 311 is trapezoidal, and the anti-bending member 32 can be inserted through the snap-fit ​​groove 311 to complete the connection between the two polyester core plates 31. Through the cooperation of the anti-bending member 32 and the polyester core plate 31, the polyester core plate 31 can only move in the longitudinal direction of the anti-bending member 32. In actual operation, the connection quality can be guaranteed by applying adhesive to the opposite side of the anti-bending component 32 and the two polyester core plates 31.

[0034] In this embodiment, the polyester core board 31, the connecting pipe 22 located in the polyester core board 31, and the bending-resistant member 32 are all provided with insertion holes 312. The insertion pipe 4 is disposed through the corresponding insertion hole 312. The bending resistance of the board can be improved by the through placement of the insertion pipe 4 and the cooperation with the first polyester reinforcing rib 322.

[0035] The polyester core board 31 has multiple insertion holes 312 evenly spaced, and the insertion pipe fitting 4 is inserted through the insertion holes 312. The connecting pipe 22 has multiple through holes 23 evenly spaced, and the through holes 23 and the insertion holes 312 are of the same specification to facilitate the insertion of the insertion pipe fitting 4. The multiple insertion holes 312 located on the same through hole 33 correspond one-to-one with the multiple through holes 23 on the two connecting pipes 22 located in the same through hole 33. When the connecting pipe 22 is inserted into the corresponding anti-bending member 32, This allows the insertion fitting 4 to be inserted into the corresponding insertion hole 312, enabling the insertion fitting 4 to pass through one of the polyester core boards 31 and the corresponding connecting pipe 22. At the same time, the insertion fitting 4 can also pass through the anti-bending member 32 on the other polyester core board 31, which will prevent the polyester core board 31 from moving in the longitudinal direction of the anti-bending member 32, and effectively limit the position of the side sealing plate 2; that is, the insertion fitting 4 can realize the connection and fixation of the mounting plate 1, the side sealing plate 2 and the core board 3.

[0036] In this embodiment, the lengths of the two connecting pipes 22 located within the same through hole 33 are less than the length of the through hole 33; the connecting pipes 22 are set as pipe bodies; the setting of the connecting pipes 22 can reduce the overall weight, which helps to fully realize the reduction of the overall weight.

[0037] In this embodiment, adhesive layers 5 are provided between the base core board 3 and the mounting plate 1, between the side sealing plate 2 and the mounting plate 1 and the base core board 3, between the two polyester base core boards 31, and between the insertion pipe fitting 4 and the base core board 3. The adhesive can ensure the connection effect, that is, on the opposite side of the mounting plate 1 and the base core board 3; on the opposite side of the two polyester base core boards 31; on the opposite side of the polyester sealing plate 21 and the base core board 3; and on the outside of the insertion pipe fitting 4. In actual operation, the adhesive layer 5 can be applied only to the outside of the connector 4 to ensure the connection is firm.

[0038] In this embodiment, the cross-sections of the snap-fit ​​groove 311 and the anti-bending member 32 are both trapezoidal, and the cross-sectional specifications of the snap-fit ​​groove 311 and the anti-bending member 323 are the same. The trapezoidal design allows for a full connection and fixation between the two polyester core boards 31, while the groove 324 reduces the overall weight. The polyester core board 31 and multiple anti-bending components 32 on the polyester core board 31 are integrally formed; the integral forming setting can facilitate the firmness of the component connection. The upper ends of the anti-bending components 323 are provided with grooves 324 on both sides. At the same time, the setting of grooves 324 can reduce the weight of the overall device and achieve a lightweight design.

[0039] In this embodiment, the polyester pipe 41 and the second polyester reinforcing rib 42 are integrally formed, and the second polyester reinforcing rib 42 is V-shaped. The V-shaped second polyester reinforcing rib 42 can improve the strength of the insertion pipe 4. At the same time, the improvement of the strength of the insertion pipe 4 can improve the strength of the polyester core board 31, thus achieving an overall improvement in strength.

[0040] In this embodiment, notches 313 are provided on both sides of the snap-fit ​​groove 311, and the notches 313 are provided on the polyester core board 31; by setting the notches 313, the overall weight can be reduced, which can further reduce the overall weight and effectively achieve the overall lightweight design.

[0041] Reference Figure 6 The present invention also proposes a method for preparing a lightweight and high-strength polyester material plate structure, applicable to the aforementioned lightweight and high-strength polyester material plate structure, comprising the following steps: S1. Material Preparation: Prepare phthalic acid, ethylene glycol, catalyst, flame retardant, glass fiber reinforced PBT, alloy powder, graphene, talc, reinforcing agent, and binder in precise proportions and add them to the injection molding equipment. Glass fiber reinforced PBT, alloy powder, graphene, and reinforcing agent can significantly improve the overall strength of the final product. Workers should precisely proportion each material for accurate addition. First, heat and melt the phthalic acid and ethylene glycol. After melting, add the catalyst, flame retardant, glass fiber reinforced PBT, alloy powder, graphene, talc, reinforcing agent, and binder according to the proportions and stir thoroughly to ensure complete and uniform mixing and that the materials are in a molten state. S2. Injection Molding Preparation: Different injection molds are set up according to different parts so that the injection molding equipment heats the material to a molten state and conveys it into the injection mold. The heat dissipation equipment is controlled to achieve uniform heat dissipation of the injection molded product. The molten material is conveyed into the corresponding injection mold through the injection molding equipment. The injection mold is prepared according to the specifications of mounting plate 1, side sealing plate 2, base core plate 3 and plug pipe 4 for injection molding. After preparation and molding, the heat dissipation of the parts is controlled to achieve balanced heat dissipation and cooling of the parts. At the same time, balanced heat dissipation and cooling can further ensure the stability of each part. In actual production and preparation, corresponding snap-fit ​​textures can be set at the contact points of each component to increase the connection area and improve the connection quality during subsequent gluing. S3. Glue application and connection: Clean the surface of the injection molded product after heat dissipation, remove burrs, and apply glue to the injection molded product using glue application equipment to facilitate the splicing of the injection molded products. Remove burrs from the mounting plate 1, side sealing plate 2, base core plate 3 and plug fitting 4 to ensure sufficient contact between the components and help improve the adhesive effect of the adhesive layer 5. S4. Panel Assembly: Assemble two polyester core boards 31 so that the bending-resistant component 32 is inserted into the snap-fit ​​groove 311 in the other polyester core board 31, and control the edges of the two polyester core boards 31 to align. At the same time, the two mounting plates 1 are respectively attached to the upper and lower ends of the two polyester core boards 31. Meanwhile, the four 12 are respectively set at the four corners of the core board 3. Control the connecting pipe 22 and the through hole 33 on the side sealing plate 2 to correspond, so that the edges of the polyester sealing plate 21, the core board 3 and the mounting plate 1 abut against each other. At the same time, the horizontal ends of the upper and lower ends of the polyester sealing plate 21 are inserted into the corresponding two 12. Control the insertion pipe 4 to pass through the insertion hole 312, so that the insertion pipe 4 can fully penetrate the core board 3. The excess insertion pipe 4 is disassembled by the cutting component. S5. Pressure Stabilization and Reinforcement: Place the assembled components into the pressure-pressurizing components to perform pressure stabilization and compression operations on the components. After the adhesive layer 5 dries, remove it and clean up any overflowing adhesive layer 5.

[0042] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A lightweight and high-strength polyester material board structure, comprising two mounting plates (1), two side sealing plates (2), and a core plate (3), characterized in that: The base core plate (3) is disposed between two mounting plates (1). The upper and lower ends of the base core plate (3) are respectively connected to the opposite side of the two mounting plates (1). The base core plate (3) and the two mounting plates (1) are located between two side sealing plates (2). The side sealing plates (2) are disposed through the two mounting plates (1). The side sealing plates (2) are connected to one side of the base core plate (3). The core board component (3) includes two polyester core boards (31). Multiple anti-bending components (32) are provided at equal intervals on the polyester core board (31). Each anti-bending component (32) includes an anti-bending component (323). An installation groove (321) is provided on the anti-bending component (323). A first polyester reinforcing rib (322) is installed in the installation groove (321). The side sealing plate (2) is provided with multiple connecting pipes (22) at both the upper and lower ends of the side close to the core plate (3). Multiple insertion pipe fittings (4) are provided through the polyester core plate (31) and the connecting pipes (22) located on the same side. The insertion pipe fittings (4) include polyester pipe fittings (41). A second polyester reinforcing rib (42) is installed inside the polyester pipe fittings (41).

2. The lightweight and high-strength polyester material board structure according to claim 1, characterized in that: The mounting plate (1) includes a heat insulation plate (11), and the heat insulation plate (11) has (12) on both sides. The side sealing plate (2) includes a polyester sealing plate (21). The connecting pipe (22) and the polyester sealing plate (21) are fixedly connected. The polyester sealing plate (21) is U-shaped. The two horizontal ends of the polyester sealing plate (21) are respectively installed on the (12) on the same side of the two heat insulation plates (11). The upper and lower ends of the polyester sealing plate (21) are respectively flush with the two heat insulation plates (11).

3. The lightweight and high-strength polyester material board structure according to claim 2, characterized in that: Multiple snap-fit ​​slots (311) are provided at equal intervals at one end of two polyester core boards (31). Multiple anti-bending components (32) on one polyester core board (31) are respectively installed through multiple snap-fit ​​slots (311) on the other polyester core board (31). Two through holes (33) are provided between two adjacent snap-fit ​​slots (311) on the same polyester core board (31). The connecting tube (22) extends into its multiple through holes (33), and the two connecting tubes (22) are respectively fixedly connected to two polyester closed plates (21).

4. The lightweight and high-strength polyester material board structure according to claim 3, characterized in that: The polyester core board (31), the connecting pipe (22) located in the polyester core board (31) and the bending member (32) are all provided with insertion holes (312), and the insertion pipe fitting (4) is disposed through the corresponding insertion hole (312). The polyester core board (31) has multiple insertion holes (312) at equal intervals, and the insertion pipe fitting (4) is disposed through the insertion holes (312). The connecting pipe (22) has multiple through holes (23) at equal intervals, and the through holes (23) and the insertion holes (312) have the same specifications. The multiple insertion holes (312) located on the same through hole (33) correspond one-to-one with the multiple through holes (23) located on the two connecting pipes (22) inside the through hole (33).

5. The lightweight and high-strength polyester material board structure according to claim 4, characterized in that: The lengths of the two connecting pipes (22) located in the same through hole (33) are less than the length of the through hole (33); The connecting pipe (22) is a pipe body.

6. The lightweight and high-strength polyester material board structure according to claim 5, characterized in that: An adhesive layer (5) is provided between the base core board (3) and the mounting plate (1), between the side sealing plate (2) and the mounting plate (1) and the base core board (3), between the two polyester base core boards (31), and between the insertion pipe fitting (4) and the base core board (3).

7. The lightweight and high-strength polyester material board structure according to claim 6, characterized in that: The cross-sections of the snap-fit ​​groove (311) and the anti-bending component (32) are both trapezoidal, and the cross-sections of the snap-fit ​​groove (311) and the anti-bending component (323) have the same specifications. The polyester core board (31) and the multiple bending-resistant components (32) on the polyester core board (31) are integrally formed; The upper end of the anti-bending component (323) is provided with grooves (324) on both sides.

8. The lightweight and high-strength polyester material board structure according to claim 7, characterized in that: The polyester tube (41) and the second polyester reinforcing rib (42) are integrally formed, and the second polyester reinforcing rib (42) is arranged in a V-shape.

9. The lightweight and high-strength polyester material board structure and its preparation method according to claim 8, characterized in that: Both sides of the snap-fit ​​groove (311) are provided with notches (313), and the notches (313) are provided on the polyester core board (31).

10. A method for preparing a lightweight and high-strength polyester material board structure, applicable to the lightweight and high-strength polyester material board structure of claim 9 above, characterized in that, Includes the following steps: S1. Material preparation: Prepare phthalic acid, ethylene glycol, catalyst, flame retardant, glass fiber reinforced PBT, alloy powder, graphene, talc, reinforcing agent and binder materials in precise proportions, and add the materials into the injection molding equipment; S2. Injection Molding Preparation: Different injection molds are set according to different parts so that the injection molding equipment heats the material to a molten state and delivers it into the injection mold, and controls the heat dissipation equipment to achieve uniform heat dissipation of the injection molded product; S3. Adhesive application and connection: Clean the surface of the injection molded product after heat dissipation, remove burrs, and apply adhesive to the injection molded product using adhesive application equipment to facilitate the splicing of the injection molded products. S4. Assemble the two polyester core boards (31): Assemble the two polyester core boards (31) so that the bending anti-bending part (32) is inserted into the snap-fit ​​groove (311) in the other polyester core board (31) and control the edges of the two polyester core boards (31) to be aligned. At the same time, the two mounting plates (1) are attached to the lower ends of the upper ends of the two polyester core boards (31) respectively. At the same time, the four (12) are respectively set at the four corners of the core board (3). Control the connecting pipe (22) and the through hole (33) on the side sealing plate (2) to correspond so that the edges of the polyester sealing plate (21) and the core board (3) and the mounting plate (1) abut against each other. At the same time, the horizontal ends of the upper and lower ends of the polyester sealing plate (21) are inserted into the corresponding two (12). Control the insertion pipe (4) to pass through the insertion hole (312) so that the insertion pipe (4) can fully pass through the core board (3) and the excess insertion pipe (4) is disassembled by the cutting part. S5. Pressure Stabilization and Reinforcement: Place the assembled parts into the pressure-pressurizing parts to perform pressure stabilization and compression operations on the parts. After the adhesive layer (5) dries, remove it and clean up any overflowing adhesive layer (5).

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