Thermal and sound insulation honeycomb panel and manufacturing method

Abstract

This invention discloses a thermal insulation and soundproof honeycomb panel, comprising a soundproof board, which includes a thermal insulation layer and a sound-absorbing layer. The sound-absorbing layer includes a main sound-absorbing module with a hexagonal cross-section. Six hexagonal main sound-absorbing modules are joined at their pointed corners to form an approximate ring. An auxiliary sound-absorbing module is attached to the center of the approximate ring. This invention provides a thermal insulation and soundproof honeycomb panel with both a thermal insulation layer and a sound-absorbing layer. In use, it achieves the effect of first absorbing sound and then insulating. Furthermore, the composite metal foil layer in the center, combined with the main sound-absorbing module structure, enhances the flame-retardant effect. While ensuring indoor thermal insulation through the composite insulation layer, it also improves sound absorption through the internal bubble structure. This effectively solves the problems of existing honeycomb soundproof panels made of a single metal material, resulting in relatively fixed sound insulation and poor thermal insulation.

Description

Technical Field

[0001] This invention relates to the field of thermal insulation and heat insulation materials, specifically to a thermal insulation and sound insulation honeycomb board and its manufacturing method. Background Technology

[0002] Honeycomb aluminum panels are a series of metal composite panel products developed by combining composite honeycomb panel technology from the aerospace industry. This product adopts a "honeycomb sandwich" structure, that is, a composite panel made by bonding high-strength alloy aluminum plates with a decorative coating that has excellent weather resistance as the face and back plates with an aluminum honeycomb core under high temperature and pressure. This product series has the advantages of excellent material selection, advanced technology, and reasonable structure. It not only exhibits excellent performance in large dimensions and flatness, but also offers a wide range of choices in terms of shape, surface treatment, color, and installation systems.

[0003] Advantages of aluminum honeycomb panels: sound insulation and heat insulation. The air layers inside the aluminum honeycomb panel are divided into numerous closed gaps by the honeycomb core, which prevents air flow and makes it difficult for sound waves and heat to propagate. However, since the aluminum honeycomb panel material is made of aluminum alone, its thermal conductivity is relatively high, resulting in poor heat insulation. On the other hand, some sound insulation panels made of only heat insulation materials have poor flame retardancy and their structure is mostly a single color, and the overall surface of the structure is always rough, affecting the decorative effect. In view of the above problems, a heat-insulating and sound-insulating honeycomb panel, its manufacturing method, and auxiliary processing equipment are proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a thermal insulation and soundproof honeycomb panel and a manufacturing method thereof, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a heat-insulating and sound-absorbing honeycomb panel, comprising a sound-absorbing board, wherein the sound-absorbing board comprises a heat-insulating layer and a sound-absorbing layer; The sound-absorbing layer includes a main sound-absorbing module, which has a hexagonal cross-section. The sharp corners of every 6 hexagonal main sound-absorbing modules are combined and spliced ​​to form an approximate ring. An auxiliary sound-absorbing module is pasted at the center of the approximate ring. The sound-absorbing layer is embedded in the insulation layer on one side, and a decorative layer is attached to the other side of the sound-absorbing layer.

[0006] Preferably, with the sound-absorbing layer as the inner side, a cotton layer and a metal foil layer are respectively bonded and formed between the sound-absorbing layer and the decorative layer from the inside out.

[0007] Preferably, the auxiliary noise reduction module includes a hexagonal prism-shaped buffer tube formed by combining and pasting, and the buffer tube has a noise reduction groove with one end open.

[0008] Preferably, after a plurality of the buffer tubes are combined, the outermost edge dimension is the same as the corresponding outermost dimension of the main muffler module. The buffer tube combination fills the center of the approximately annular main muffler module, and after the buffer tubes are filled, a slot is reserved at the contact position with the adjacent main muffler module.

[0009] Preferably, the welding equipment used in a heat-insulating and sound-absorbing honeycomb panel includes a heating device and a welding mechanism. The welding mechanism includes a main fixing frame, a welding head is hinged to the bottom end of the main fixing frame, and a telescopic member is hinged to the outside of the top of the main fixing frame and the outside of the welding head. The welding mechanism is arranged in rows and columns, and the welding head can press and weld three adjacent main sound-absorbing modules at once.

[0010] Preferably, the insulation layer forming equipment used in a thermal insulation and sound insulation honeycomb panel includes an insulation layer forming mold and an outer auxiliary frame mold structure. The insulation forming mold includes a fixing plate, and a main mold block and a cavity mold block are integrally formed on the inner side of the fixing plate. The outer auxiliary frame structure includes a flat plate, and the plate and the outer side of the insulation layer forming mold are assembled to form a single-opening mold structure with a cavity.

[0011] Preferably, the main mold block is used to fill a portion of the inner cavity of the main muffler module, and the cavity mold block is used to fill the empty slot.

[0012] A preferred method for manufacturing a thermal insulation and soundproof honeycomb panel includes the following steps: Step ①: Equipment preparation. Using stamping and welding tools, the long strips of material cut to a fixed length are assembled into a hexagonal main sound-absorbing module. Step 2: Place multiple sets of main silencing modules flat above the chain conveyor belt of the heating equipment. After being heated by the equipment, the modules descend as they pass above the rows of welding mechanisms. The telescopic parts extend and drive the welding heads to clamp and weld the three adjacent main silencing modules together, forming a body structure without an auxiliary silencing module. Step 3: Use a mold to press and form an integrated auxiliary noise reduction module. Finally, attach the auxiliary noise reduction module to the gap of the main noise reduction module. Step 4: Prepare the insulation layer forming equipment, then insert the insulation layer forming mold into one side of the assembled sound-absorbing layer, forming the remaining cavity on the other side of the sound-absorbing layer. After combining the outer board with the insulation layer forming mold to form a cavity and the remaining cavity, inject the insulation layer material from the opening. After the insulation layer material is shaped in the mold, it becomes the insulation layer. Step 5: Finally, attach a cotton layer to the other side of the sound-absorbing layer of the composite insulation layer, then attach a metal foil layer to the outside of the cotton layer, and finally attach a decorative layer to the outside of the metal foil layer.

[0013] Preferably, when the cotton layer and the sound-absorbing layer are pasted together, the cross-section of the groove is similar to that of the groove, where glue needs to be applied to the outside of the cotton layer.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a heat-insulating and sound-absorbing honeycomb panel with a heat-insulating layer and a sound-absorbing layer. After production, it is cut to the appropriate size and shape according to the required location and fixed to the wall or roof structure at the required location. When in use, it has the effect of first absorbing sound and then insulating heat. The structure composed of the composite metal foil layer in the middle and the main sound-absorbing module improves the flame-retardant effect. In addition, the composite heat-insulating layer ensures the heat insulation effect of the room, and the internal bubble structure of the heat-insulating layer can also improve the sound absorption effect. This effectively solves the problem that the existing honeycomb sound insulation panels are made of a single metal material, with relatively fixed sound insulation effect and poor heat insulation effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the sound insulation board structure of the present invention; Figure 2 This is an exploded view of the sound insulation board structure of the present invention; Figure 3 This is a schematic diagram showing the exploded structural state of the sound-absorbing layer and the heat-insulating layer of the present invention; Figure 4 This is a cross-sectional view of the auxiliary noise reduction module of the present invention; Figure 5 This is a schematic diagram of the welding state of the main noise reduction module of the present invention; Figure 6 This is a schematic diagram of the main noise reduction module and welding equipment structure assembly of the present invention; Figure 7 This is an exploded view of the insulation layer molding mold, the sound-absorbing layer, and the state of the insulation layer after molding, according to the present invention. Figure 8 This is a reverse perspective schematic diagram showing the decomposed state of the insulation layer molding mold, the sound-absorbing layer, and the insulation layer after molding according to the present invention.

[0016] In the diagram: 1. Sound insulation board, 11. Thermal insulation layer, 12. Cotton layer, 13. Metal foil layer, 14. Decorative layer, 2. Sound absorbing layer, 21. Main sound absorbing module, 22. Auxiliary sound absorbing module, 23. Buffer tube, 24. Sound absorbing groove, 25. Hollow groove, 3. Welding mechanism, 31. Main fixing frame, 32. Welding head, 33. Telescopic component, 4. Thermal insulation layer forming mold, 41. Fixing plate, 42. Main mold block, 43. Hollow mold block. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-8 The present invention provides a technical solution: a heat-insulating and sound-insulating honeycomb board, comprising a sound-insulating board 1, wherein the sound-insulating board 1 comprises a heat-insulating layer 11 and a sound-absorbing layer 2; The sound-absorbing layer 2 includes a main sound-absorbing module 21, which has a hexagonal cross-section. The sharp corners of every 6 hexagonal main sound-absorbing modules 21 are combined and spliced ​​to form an approximate ring. An auxiliary sound-absorbing module 22 is pasted at the center of the approximate ring. The sound-absorbing layer 2 has an embedded composite structure with the insulation layer 11 on one side, and a decorative layer 14 is pasted on the other side of the sound-absorbing layer 2.

[0019] This invention provides a heat-insulating and sound-absorbing honeycomb panel with a heat-insulating layer 11 and a sound-absorbing layer 2. After production, it is cut to the appropriate size and shape according to the required location and then fixed to the wall or roof structure at the required location. In use, it has the effect of first absorbing sound and then insulating. The structure formed by the composite metal foil layer in the middle and the main sound-absorbing module 21 improves the flame retardant effect. While the composite heat-insulating layer ensures the heat insulation effect of the room, it can also improve the sound absorption effect by utilizing the bubble structure inside the heat-insulating layer. This effectively solves the problem that the existing honeycomb sound insulation panels are made of a single metal material, resulting in a relatively fixed sound insulation effect and poor heat insulation effect.

[0020] Specifically, with the sound-absorbing layer 2 as the inner side, a cotton layer 12 and a metal foil layer 13 are respectively bonded and formed from the inside to the outside between the sound-absorbing layer 2 and the decorative layer 14. The cotton layer 12 is a recycled cotton structure, which is composited by spraying flame retardant before being woven into cloth, and finally made by surface hardening. This structure is similar to the existing sound insulation cotton material in the vehicle body, serving as a buffer layer behind the decorative layer and a sound buffer and conduction layer. The metal foil layer 13 is a flame retardant layer bonded between the cotton layer and the decorative layer, serving as the first flame-blocking layer and improving the sound cancellation effect.

[0021] Specifically, the auxiliary noise reduction module 22 includes a hexagonal prism-shaped buffer tube 23 formed by combining and pasting. The buffer tube 23 has a noise reduction groove 24 with one end open. The auxiliary noise reduction module 22 is preferably made of stone paper material, which has the functions of being non-flammable, having good softness, and having strong plasticity. It aims to reduce vibration on the inner wall of the adjacent annular main noise reduction module 21, thereby improving the composite effect of noise reduction.

[0022] Specifically, after several buffer tubes 23 are combined, the outermost edge dimension is the same as the corresponding outermost dimension of the main muffler module 21. The buffer tubes 23 are filled in the center of the approximately annular main muffler module 21, and after the buffer tubes 23 are filled, a slot 25 is reserved at the contact position with the adjacent main muffler module 21. For details of the above combination method, please refer to the appendix of the instruction manual. Figure 3 Appendix Figure 7 and attached Figure 8 .

[0023] Specifically, the welding equipment used in a heat-insulating and sound-absorbing honeycomb panel includes a heating device and a welding mechanism 3. The welding mechanism 3 includes a main fixing frame 31, with a welding head 32 hinged to the bottom end of the main fixing frame 31. A telescopic member 33 is hinged to the outer side of the top of the main fixing frame 31 and the outside of the welding head 32. The welding mechanism 3 is arranged in rows and columns. The welding head 32 can press and weld three adjacent main sound-absorbing modules 21 at a time. During production, the main sound-absorbing module 21 is preferably made of aluminum profile, but it can also be made of thickened stone cardboard material. After the heating temperature is controlled to reach a suitable temperature, the two materials can be bonded together by mutual extrusion and melting between the welding heads 32 to form a sheet-like integral sound-absorbing layer 2. The entire welding mechanism 3 is intermittently arranged laterally according to the spacing and movement distance of the main sound-absorbing modules 21. After multiple sets and rows of heating and welding, the panel is directly formed by the staggered arrangement of two adjacent rows of laterally arranged welding mechanisms 3.

[0024] Specifically, a thermal insulation layer forming device for a thermal insulation and soundproof honeycomb panel includes a thermal insulation layer forming mold 4 and an outer auxiliary frame mold structure. The thermal insulation forming mold 4 includes a fixing plate 41, and a main mold block 42 and a cavity mold block 43 are integrally formed on the inner side of the fixing plate 41. The outer auxiliary frame structure includes a flat board, and the board and the outer side of the thermal insulation layer forming mold 4 are assembled to form a single-opening mold structure with a cavity. After a portion of the cavity of the sound-absorbing layer 2 is filled by the thermal insulation forming mold 4, a material preferably EPS polystyrene foam is filled to form a thermal insulation layer, thereby improving the buffering, shock absorption and thermal insulation effects.

[0025] Specifically, the main mold block 42 is used to fill a portion of the inner cavity of the main muffler module 21, and the cavity mold block 43 is used to fill the empty slot 25.

[0026] A method for manufacturing a thermal insulation and soundproof honeycomb panel includes the following steps: Step ①: Equipment preparation. Using stamping and welding tools, the long strip of material cut to a fixed length is assembled into a hexagonal main sound-absorbing module 21. Step ②: Place multiple sets of main silencing modules 21 flat above the chain conveyor belt of the heating equipment. After being heated by the equipment, when passing above the welding mechanism 3 arranged in rows and groups, the welding mechanism 3 descends, and the telescopic part 33 extends to drive the welding head 32 to clamp and weld the three adjacent main silencing modules 21 together, forming a body structure of the silencing layer 2 without auxiliary silencing modules 22. Step 3: Use a mold to press and form an integrated auxiliary noise reduction module 22. Finally, attach the auxiliary noise reduction module 22 to the gap of the main noise reduction module 21. Step 4: Prepare the insulation layer forming equipment, then insert the insulation layer forming mold 4 into one side of the assembled sound-absorbing layer 2, forming the remaining cavity on the other side of the sound-absorbing layer 2. After combining the outer board with the insulation layer forming mold 4 to form a cavity and the remaining cavity, inject the insulation layer material from the opening. After the insulation layer material is shaped in the mold, it becomes the insulation layer 11. Step 5: Finally, attach the cotton layer 12 to the other side of the sound-absorbing layer 2 of the composite insulation layer 11, then attach the metal foil layer 13 to the outside of the cotton layer 12, and finally attach the decorative layer 14 to the outside of the metal foil layer 13.

[0027] Specifically, when pasting the cotton layer 12 and the sound-absorbing layer 2, the adhesive applied to the outside of the cotton layer should be similar to the cross section of the sound-absorbing groove 2 to save adhesive, improve the bonding strength and the bonding effect.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermal and acoustic insulation honeycomb panel comprising an acoustic panel (1), characterized in that: The sound insulation board (1) includes a heat insulation layer (11) and a sound-absorbing layer (2); The sound-absorbing layer (2) includes a main sound-absorbing module (21), the cross-section of which is hexagonal. The sharp corners of every 6 hexagonal main sound-absorbing modules (21) are combined to form an approximate ring, and an auxiliary sound-absorbing module (22) is pasted at the center of the approximate ring. The sound-absorbing layer (2) has an embedded combination structure between one side and the heat insulation layer (11), and a decorative layer (14) is pasted on the other side of the sound-absorbing layer (2). With the sound-absorbing layer (2) as the inner side, a cotton layer (12) and a metal foil layer (13) are respectively pasted from the inside to the outside between the sound-absorbing layer (2) and the decorative layer (14). The auxiliary noise reduction module (22) includes a hexagonal prism-shaped buffer tube (23) formed by combining and pasting, and a noise reduction groove (24) with one end open is opened inside the buffer tube (23). After several buffer tubes (23) are combined, the outermost edge dimension is the same as the outermost corresponding dimension of the main muffler module (21). The buffer tubes (23) are combined and filled in the center of the approximately annular main muffler module (21). After the buffer tubes (23) are filled, a slot (25) is reserved at the contact position with the adjacent main muffler module (21).

2. The welding equipment used in the thermal insulation and soundproofing honeycomb panel according to claim 1, characterized in that: The welding equipment includes heating equipment and welding mechanism (3). The welding mechanism (3) includes a main fixing frame (31). The bottom end of the main fixing frame (31) is hinged with a welding head (32). The outer side of the top of the main fixing frame (31) is hinged with the outside of the welding head (32) with a telescopic component (33). The welding mechanism (3) is arranged in rows. The welding head (32) can press and weld three adjacent main silencing modules (21) at once.

3. The insulation layer forming equipment for a thermal insulation and soundproof honeycomb panel according to claim 1, characterized in that: The insulation layer forming equipment includes an insulation layer forming mold (4) and an outer auxiliary frame mold structure. The insulation layer forming mold (4) includes a fixing plate (41). The inner side of the fixing plate (41) is integrally formed with a main mold block (42) and a cavity mold block (43). The outer auxiliary frame mold structure includes a flat plate, and the plate and the outer side of the insulation layer forming mold (4) are assembled to form a single-opening mold structure with a cavity.

4. The insulation layer forming equipment for a thermal insulation and soundproof honeycomb panel according to claim 3, characterized in that: The main mold block (42) is used to fill a portion of the inner cavity of the main muffler module (21), and the cavity mold block (43) is used to fill the empty slot (25).

5. A method for manufacturing a thermal insulation and soundproof honeycomb panel according to claim 4, comprising the following methods: Step ①: Equipment preparation. Using stamping and welding tools, the long strip of material cut to a fixed length is combined into a hexagonal main muffler module (21). Step ②: Place multiple sets of main silencing modules (21) flat above the chain conveyor belt of the heating equipment. After being heated by the equipment, when passing above the welding mechanism (3) in rows and groups, the welding mechanism (3) descends, and the telescopic part (33) extends to drive the welding head (32) to clamp and weld the three adjacent main silencing modules (21) together, forming a body structure of the silencing layer (2) without auxiliary silencing modules (22); Step 3: Use a mold to extrude and form an integrated auxiliary noise reduction module (22). Finally, attach the auxiliary noise reduction module (22) to the gap of the main noise reduction module (21). Step 4: Prepare the insulation layer forming equipment, then insert the insulation layer forming mold (4) into one side of the assembled sound-absorbing layer (2), and form the remaining cavity on the other side of the sound-absorbing layer (2). After combining the outer plate with the insulation layer forming mold (4) to form a cavity and the remaining cavity, inject the insulation layer material from the opening. After the insulation layer material is shaped in the mold, it becomes the insulation layer (11). Step 5: Finally, attach the cotton layer (12) to the other side of the sound-absorbing layer (2) of the composite insulation layer (11), then attach the metal foil layer (13) to the outside of the cotton layer (12), and finally attach the decorative layer (14) to the outside of the metal foil layer (13).

6. The method for manufacturing a thermal insulation and soundproof honeycomb panel according to claim 5, characterized in that: When the cotton layer (12) is pasted with the sound-absorbing layer (2), the shape of the glue applied to the outside of the cotton layer should be similar to the cross-section of the sound-absorbing layer (2).

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