Preparation method and device of composite insulation board coated with vacuum insulation board

Abstract

The invention relates to a preparation method and device for a composite insulation board coated with a vacuum insulation panel, and the preparation method comprises the following steps: a, pouring a semi-dry insulation slurry into a mold cavity, and paving the semi-dry insulation slurry to form a bottom material layer; b, laying a lower reinforcing net and semi-dry thermal insulation slurry on the bottom material layer to form a basic material layer; c, a vacuum insulation plate is placed in the middle of the basic material layer, and a filler cavity is formed between the vacuum insulation plate and the mold cavity; d, semi-dry thermal insulation slurry is laid in the filler cavity and compacted; e, pouring semi-dry thermal insulation slurry into the mold cavity, and forming a material pressing layer above the vacuum thermal insulation plate and the filler cavity; f, an upper layer reinforcing net is laid above the material pressing layer, and a top material layer is laid above the upper layer reinforcing net; and g, compacting the material in the mold cavity to form the composite insulation board. According to the invention, the vacuum insulated panel is coated inside the composite insulation board, so that the overall heat insulation effect of the insulation board is improved; and stepped compaction is adopted, so that the vacuum insulated panel is prevented from being damaged by pressing in the compaction process.

Description

Technical Field

[0001] The present invention relates to the technical field of building materials, and particularly to thermal insulation boards for buildings, specifically a preparation method and device for a composite thermal insulation board covering a vacuum insulation panel. Background Art

[0002] With the development of green building technologies, energy conservation and thermal insulation have received increasing attention. After using thermal insulation boards in building walls, the heat insulation and preservation effect has been significantly improved, and the energy consumption for winter heating and summer cooling can both be greatly reduced. Therefore, improving the heat insulation and preservation effect of walls has become a development trend for energy-efficient buildings.

[0003] Currently, wall thermal insulation boards usually use gypsum boards, rock wool boards, etc. During preparation, the raw materials are first mixed into a slurry, then poured into a mold cavity and left to stand and cure, and finally demolded to form a thermal insulation board. Such thermal insulation boards can achieve a certain heat insulation and preservation effect. However, since the entire thermal insulation board is formed by the solidification of thermal insulation slurry, the thermal conductivity is relatively high, and there are still deficiencies in heat insulation and preservation.

[0004] To solve the problem of the heat insulation effect of existing wall thermal insulation boards, the method of increasing the number of thermal insulation layers is usually adopted to improve the heat insulation effect. Although this method improves the heat insulation effect, it is necessary to increase the thickness of the building wall, which brings inconvenience to the wall structure setting. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a preparation method and device for a composite thermal insulation board covering a vacuum insulation panel, which improves the heat insulation and preservation performance and avoids causing pressure damage and rupture to the vacuum insulation panel during preparation.

[0006] The present invention is realized through the following technical solutions. A preparation method for a composite thermal insulation board covering a vacuum insulation panel is provided, including the following steps: a. Pour semi-dry thermal insulation slurry into a mold cavity with an upward opening, and spread the semi-dry thermal insulation slurry over the bottom of the mold cavity. After paving, a bottom material layer with a thickness of 5 mm to 10 mm is formed; b. Lay a lower reinforcing mesh on the upper surface of the bottom material layer, and lay a layer of semi-dry thermal insulation slurry with a thickness of 10 mm to 15 mm above the lower reinforcing mesh to form a base material layer, and flatten the upper surface of the base material layer; c. Place a vacuum insulation panel at the middle position on the base material layer. A filling cavity is formed between the peripheral end faces of the vacuum insulation panel and the side walls of the mold cavity. The filling cavity is rectangular and circumferentially through; d. Lay and compact semi-dry thermal insulation slurry in the filling cavity. The semi-dry thermal insulation slurry laid each time ... ... The thickness before compaction does not exceed 1 / 3 of the thickness of the vacuum insulation panel. Each time the semi-dry thermal insulation mortar is laid, it is compacted, and then the next layer of semi-dry thermal insulation mortar is laid until the upper surface of the semi-dry thermal insulation mortar in the filling cavity is flush with the upper surface of the vacuum insulation panel; e. Pour the semi-dry thermal insulation mortar into the mold cavity and level it. A pressure layer with a thickness of 10 mm to 15 mm is formed above the vacuum insulation panel and the filling cavity, and the upper part of the pressure layer is leveled; f. Lay the upper reinforcing mesh above the pressure layer, and lay a top layer of material with a thickness of 5 mm to 10 mm above the upper reinforcing mesh and level it. After leveling, the upper surface of the top layer of material is flush with the upper surface of the mold cavity; g. Apply pressure to the top layer of material from top to bottom to compact the material in the mold cavity to form a composite thermal insulation panel. The upper surface of the composite thermal insulation panel is 10 mm lower than the upper edge of the mold cavity.

[0007] This solution uses the semi-dry material method to prepare the thermal insulation panel. Through compaction, the preparation time of the thermal insulation panel is shortened, and the overall structural strength of the thermal insulation panel is improved. By setting the vacuum insulation panel, the overall heat insulation performance of the thermal insulation panel is improved. Moreover, during the preparation process, before laying the slurry above the vacuum insulation panel, stepped compaction is adopted, and only the semi-dry thermal insulation mortar around the vacuum insulation panel is compacted to avoid damaging the vacuum insulation panel.

[0008] As an optimization, the mass components of the semi-dry thermal insulation mortar are: 100 parts of cement, 6 parts to 8 parts of rubber powder, 1 part to 2 parts of waterproof agent, 4 parts to 6 parts of polystyrene particles. The water content of the semi-dry thermal insulation mortar is 40% to 50%; the dry density of the semi-dry thermal insulation mortar after compaction is 250 kg / m³ to 400 kg / m³.

[0009] As an optimization, the upper reinforcing mesh and the lower reinforcing mesh are glass fiber meshes or metal meshes.

[0010] This solution also provides a device used in the preparation method of the above-mentioned composite thermal insulation panel covering the vacuum insulation panel. The device includes a top frame and an outer frame fixedly connected to the lower end of the top frame. The lower end of the outer frame is fixedly connected with a horizontally arranged rectangular frame. The side of the rectangular frame is adapted to the filling cavity. The inner hole of the rectangular frame is provided with an inner pressing plate directly above the vacuum insulation panel. The upper surface of the inner pressing plate is fixedly provided with a hanging shaft passing upward through the outer frame, and the upper end of the hanging shaft is fixedly provided with a limiting platform supported on the upper surface of the outer frame.

[0011] ​​​​​​​​When the device of this solution is in use, the top frame is connected to the bottom of the upper punch of the press. After laying the vacuum insulation panel, the side of the rectangular frame is pressed down to compact the semi-dry thermal insulation slurry in the stuffing cavity. During the compaction process, since the hanging shaft can slide relative to the outer frame, the inner pressing plate only supports on the vacuum insulation panel and does not impact the vacuum insulation panel, ensuring the integrity of the vacuum insulation panel.

[0012] As an optimization, at least two opposite side walls of the inner pressing plate are provided with guiding holes. Electromagnets are fixedly arranged in the guiding holes. A force transmission shaft that is slidably connected to the guiding holes is arranged outside the electromagnets, and the electromagnets and the force transmission shaft are connected by springs. A force transmission hole adapted to the force transmission shaft is arranged on the inner hole side wall of the rectangular frame. With this optimized solution, when the electromagnet is energized, the electromagnet shows magnetism, attracting the force transmission shaft into the guiding hole, and the spring is compressed. When the electromagnet is de-energized and loses magnetism, the force transmission shaft moves to the force transmission hole under the action of the spring, so that when the rectangular frame moves downward, it drives the inner pressing plate to move downward synchronously, realizing the overall downward compaction of the cross-section of the mold cavity.

[0013] As an optimization, a conical guiding inclined surface is arranged at the orifice of the force transmission hole. The diameter of the small end of the conical guiding inclined surface is equal to the diameter of the force transmission hole. By setting the conical guiding inclined surface in this optimized solution, the movement of the force transmission shaft is guided to ensure that the front end of the force transmission shaft can be inserted into the force transmission hole.

[0014] As an optimization, the four side walls of the inner pressing plate are all provided with the guiding holes, and each guiding hole is located at the middle position of the corresponding side wall. By respectively arranging the guiding holes and the force transmission shafts on the four side walls in this optimized solution, the force on the inner pressing plate is ensured to be uniform, and it can better move downward with the rectangular frame.

[0015] The beneficial effects of the present invention are as follows: By covering the vacuum insulation panel inside the composite thermal insulation board, the overall heat insulation and thermal insulation effect of the thermal insulation board is greatly improved; The semi-dry material method is adopted to prepare the composite thermal insulation board, combined with the compaction operation, shortening the solidification time of the slurry and improving the structural strength of the thermal insulation board; The stepped compaction method is adopted to avoid damage to the vacuum insulation panel during the compaction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic diagram of the compaction of the stuffing cavity; Figure 3 is a top view of the inner pressing plate and the rectangular frame; Figure 4 is Figure 1 a partial enlarged view in As shown in the figure: 1. Lower reinforcing mesh, 2. Mold cavity, 3. Rectangular frame, 4. Inner pressing plate, 5. Outer frame, 6. Upper punch of the press, 7. Top frame, 8. Limiting table, 9. Hanging shaft, 10. Vacuum insulation panel, 11. Force transmission shaft, 12. Electromagnet, 13. Spring, 14. Force transmission hole, 15. Semi-dry thermal insulation slurry. Detailed implementation method

[0017] To clearly illustrate the technical features of this solution, the following elaborates on this solution through specific implementation methods.

[0018] A preparation method for a composite insulation board coated with a vacuum insulation panel includes the following steps: a. Pour semi-dry thermal insulation slurry 15 into the mold cavity 2 with the opening facing upwards, and spread the semi-dry thermal insulation slurry to cover the bottom of the mold cavity, and after paving, form a bottom material layer with a thickness of 5 mm to 10 mm; b. Lay the lower reinforcing mesh 1 on the upper surface of the bottom material layer, and lay a semi-dry thermal insulation slurry with a thickness of 10 mm to 15 mm above the lower reinforcing mesh to form a base material layer, and flatten the upper surface of the base material layer; c. Place the vacuum insulation panel 10 at the middle position on the base material layer. A filling cavity is formed between the peripheral end faces of the vacuum insulation panel and the side wall of the mold cavity. The filling cavity is rectangular and runs through circumferentially; d. Lay and compact semi-dry thermal insulation slurry in the filling cavity. The thickness of the semi-dry thermal insulation slurry before compaction each time does not exceed 1 / 3 of the thickness of the vacuum insulation panel. Each layer of semi-dry thermal insulation slurry is compacted before laying the next layer until the upper surface of the semi-dry thermal insulation slurry in the filling cavity is flush with the upper surface of the vacuum insulation panel; e. Pour semi-dry thermal insulation slurry into the mold cavity and spread it flat to form a pressing material layer with a thickness of 10 mm to 15 mm above the vacuum insulation panel and the filling cavity, and flatten the upper part of the pressing material layer; f. Lay the upper reinforcing mesh above the pressing material layer, and lay a top material layer with a thickness of 5 mm to 10 mm above the upper reinforcing mesh and flatten it. After flattening, the upper surface of the top material layer is flush with the upper surface of the mold cavity; g. Apply pressure to the top material layer from top to bottom to compact the materials in the mold cavity to form a composite insulation board. The upper surface of the composite insulation board is 10 mm lower than the upper edge of the mold cavity. Then, the composite insulation h. Remove the formed composite insulation board from the mold cavity. i. Trim the edges of the removed composite insulation board to make them smooth. The upper surface of the composite insulation board is flush with the upper surface of the mold cavity; g. Apply pressure to the top material layer from top to bottom to compact the materials in the mold cavity to form a composite insulation board. The upper surface of the composite insulation board is 10 mm lower than the upper edge of the mold cavity. Then, the composite insulation The warm plate is taken out of the mold cavity, and the taking-out method can adopt the existing technology. For example, the warm plate is ejected from the bottom up, or the mold cavity is turned over and unloaded, or the side wall of the mold cavity is disassembled, which will not be elaborated here. The warm plate is ejected, or the mold cavity is turned over and unloaded, or the side wall of the mold cavity is disassembled, which will not be elaborated here.

[0019] The mass components of the semi-dry thermal insulation slurry used in this embodiment are: 100 parts of cement, 6 to 8 parts of rubber powder, 1 to 2 parts of waterproof agent, 4 to 6 parts of polystyrene particles, the density is 18 kg / m³, and the moisture content of the semi-dry thermal insulation slurry is 40% to 50%; the absolutely dry density after the semi-dry thermal insulation slurry is compacted is 250 kg / m³ to 400 kg / m³. The upper reinforcing mesh and the lower reinforcing mesh are glass fiber meshes or metal meshes.

[0020] In order to better implement the preparation method of the present invention, this embodiment also provides a device used in the preparation method of a coated vacuum insulation panel composite thermal insulation panel as shown in Figure 1 The device includes a top frame 7 and an outer frame 5 fixedly connected to the lower end of the top frame 7. A horizontally arranged rectangular frame 3 is fixedly connected to the lower end of the outer frame 5. The side of the rectangular frame 3 is adapted to the filling cavity, and the width of the side of the rectangular frame is the same as the distance from the vacuum insulation panel to the inner wall of the mold cavity. An inner pressing plate 4 is arranged in the inner hole of the rectangular frame directly above the vacuum insulation panel 10, and the inner pressing plate is adapted to the inner hole of the rectangular frame, and the vertical projection of the inner pressing plate coincides with the vertical projection of the vacuum insulation panel.

[0021] A hanging shaft 9 is fixedly arranged on the upper surface of the inner pressing plate 4 and passes upward through the outer frame 5. A limiting platform 8 supported on the upper surface of the outer frame is fixedly arranged at the upper end of the hanging shaft, and a through hole adapted to the hanging shaft and slidably connected is opened at the top of the outer frame. When the limiting platform supports on the upper surface of the outer frame, the lower surface of the inner pressing plate is flush with the lower surface of the rectangular frame, and the force transmission shaft and the force transmission hole are coaxially opposite.

[0022] At least two opposite side walls of the inner pressing plate 4 are provided with guiding holes extending horizontally. An electromagnet 12 is fixedly arranged in the guiding holes. A force transmission shaft 11 slidably connected to the guiding holes is arranged outside the electromagnet 12, and the electromagnet 12 is connected to the force transmission shaft 11 through a spring 13. A force transmission hole 14 adapted to the force transmission shaft is opened on the inner hole side wall of the rectangular frame 3.

[0023] In order to improve the stability of the inner pressing plate and ensure the force balance in this embodiment, guiding holes are opened on the four side walls of the inner pressing plate, and each guiding hole is located at the middle position of the corresponding side wall. The downward pressure is transmitted to the inner pressing plate through four force transmission shafts, ensuring the flattening and compaction effects.

[0024] A conical guiding inclined surface is provided at the orifice of the force transmission hole. The diameter of the small end of the conical guiding inclined surface is equal to the diameter of the force transmission hole. By setting the conical guiding inclined surface to guide the movement of the force transmission shaft, the reliability of the force transmission shaft entering the force transmission hole is ensured.

[0025] When this device is in use, connect the top frame 7 to the bottom of the upper punch 6 of the press. After laying the vacuum insulation panel 10, the upper punch of the press moves downward. Through the downward force transmission of the top frame 7 and the outer frame 5, the side edges of the rectangular frame 3 vertically enter the stuffing cavity and press down to compact the semi-dry thermal insulation slurry in the stuffing cavity. During the compaction process, the electromagnet is energized, and the force transmission shaft is fixed in the guiding hole by magnetic force. The spring is compressed. The inner pressing plate and the rectangular frame are of a split structure. Since the hanging shaft 9 can slide relative to the outer frame, the inner pressing plate 4 only supports on the vacuum insulation panel 10 and does not form an up-and-down impact on the vacuum insulation panel 10, ensuring the integrity of the vacuum insulation panel. When it is necessary to flatten or compact the semi-dry thermal insulation slurry on the entire cross-section of the mold cavity, the electromagnet is powered off, and the force transmission shaft is pushed out of the guiding hole by the elastic force of the spring and passes through the force transmission hole. The inner pressing plate and the rectangular frame form an integral structure. When the rectangular frame moves up and down, through the force transmission of the force transmission shaft, the inner pressing plate is driven to move up and down synchronously to achieve the flattening or compaction of the semi-dry thermal insulation slurry on the entire cross-section of the mold cavity.

[0026] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be realized by or adopted from the prior art, and will not be elaborated here. The above embodiments and drawings are only used to illustrate the technical solutions of the present invention and are not a limitation to the present invention. The present invention has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions or substitutions made by those of ordinary skill in the technical field within the scope of the essence of the present invention do not depart from the purpose of the present invention and should also fall within the scope of the claims of the present invention.

Claims

1. A method for preparing a composite thermal insulation board coated with a vacuum insulation board, characterized in that: The following steps are involved: a. Pour the semi-dry thermal insulation slurry (15) into the mold cavity (2) with the opening facing upward, and The warm slurry is spread all over the bottom of the mold cavity, and after being leveled, a bottom material layer with a thickness of 5mm~10mm is formed; b. Lay the lower reinforcing mesh (1) on the upper surface of the bottom material layer, and lay Set the semi-dry insulation slurry with a thickness of 10mm~15mm to form the base material layer, and The upper surface of the material layer is flattened; c. Place a vacuum insulation panel (10) in the middle of the base material layer. A filling cavity is formed between the peripheral end surfaces and the side walls of the mold cavity. The filling cavity is rectangular and has a To penetrate; d. Lay semi-dry thermal insulation slurry in the filling cavity and compact it. The thickness before compaction shall not exceed 1 / 3 of the thickness of the vacuum insulation board. The materials are compacted, and then the next layer of semi-dry insulation slurry is laid until the filling The upper surface of the semi-dry thermal insulation slurry in the material cavity is flush with the upper surface of the vacuum insulation panel; e. Pour semi-dry insulation slurry into the mold cavity and spread it flat on the vacuum insulation board and filler cavity. A pressing layer with a thickness of 10 mm to 15 mm is formed, and the upper part of the pressing layer is flattened; f. Lay the upper reinforcing mesh above the pressing layer, and lay 5mm~10mm above the upper reinforcing mesh; The top material layer is flattened, and after flattening, the upper surface of the top material layer is flush with the upper surface of the mold cavity; g. Apply pressure to the top material layer from top to bottom to compact the material in the mold cavity to form a composite The upper surface of the insulation board and the composite insulation board is 10 mm lower than the upper edge of the mold cavity.

2. The method for preparing a composite thermal insulation board coated with a vacuum insulation board according to claim 1, characterized in that: The mass components of the semi-dry thermal insulation slurry are: 100 parts of cement, 6 parts to 8 parts of glue powder, 1 part to 2 parts of waterproofing agent, 4 parts to 6 parts of polystyrene particles, and the moisture content of the semi-dry thermal insulation slurry is 40% to 50%; the absolute dry density of the semi-dry thermal insulation slurry after compaction is 250 kg / m³ to 400kg / m³.

3. The method for preparing a composite thermal insulation board coated with a vacuum insulation board according to claim 1, characterized in that: The upper reinforcing mesh and the lower reinforcing mesh are glass fiber mesh or metal mesh.

4. A device used in the method for preparing the composite thermal insulation board coated with vacuum insulation board according to claim 1, characterized in that: The invention comprises a top frame (7) and an outer frame (5) fixedly connected to the lower end of the top frame (7); a horizontally arranged rectangular frame (3) is fixedly connected to the lower end of the outer frame (5); the side of the rectangular frame (3) is adapted to the filling cavity; an inner hole of the rectangular frame is provided with an inner pressure plate (4) located directly above the vacuum insulation panel (10); a hanging shaft (9) passing upward through the outer frame (5) is fixedly provided on the upper surface of the inner pressure plate (4); and a limit platform (8) supported on the upper surface of the outer frame is fixedly provided on the upper end of the hanging shaft.

5. The device used in the method for preparing the composite thermal insulation board coated with vacuum insulation board according to claim 4 is characterized in that: At least two opposite side walls of the inner pressure plate (4) are provided with guide holes, an electromagnet (12) is fixedly arranged in the guide hole, a force transmission shaft (11) is provided on the outer side of the electromagnet (12) and is slidably connected to the guide hole, and the electromagnet (12) and the force transmission shaft (11) are connected via a spring (13), and a force transmission hole (14) adapted to the force transmission shaft is provided on the inner hole side wall of the rectangular frame (3).

6. The device used in the method for preparing the composite thermal insulation board coated with vacuum insulation board according to claim 5 is characterized in that: A conical guiding inclined surface is arranged at the opening of the force transmission hole, and the diameter of the small diameter end of the conical guiding inclined surface is equal to the diameter of the force transmission hole.

7. The device used in the method for preparing the composite thermal insulation board coated with vacuum insulation board according to claim 5 is characterized in that: The four side walls of the inner pressure plate are all provided with the guide holes, and each guide hole is located at the middle position of the side wall.

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