A double-sided composite aluminum foil rigid polyurethane foam composite board and its production method

Abstract

This invention discloses a double-sided composite aluminum foil rigid polyurethane foam composite board and its production method, including multiple conveying rollers rotatably mounted on a frame. A fixed frame is fixedly connected to the top left side of the frame. A coating assembly is mounted on the fixed frame, and a moving assembly is located on the inner end of the fixed frame. A connecting assembly is mounted on the moving assembly, and a coating evenly coating assembly is mounted on the connecting assembly. This invention relates to the field of composite board production technology. The double-sided composite aluminum foil rigid polyurethane foam composite board and its production method, through the coating evenly coating assembly, effectively improve the flatness of the composite board surface by uniformly coating the rigid polyurethane foam sprayed on the aluminum foil surface. This avoids uneven distribution and unevenness of the rigid polyurethane foam on the board surface due to errors during the spraying process.

Description

Technical Field

[0001] This invention relates to the field of composite board production technology, specifically to a double-sided composite aluminum foil rigid foam polyurethane composite board and its production method. Background Technology

[0002] Double-sided composite aluminum foil rigid polyurethane foam composite board is a new type of building insulation material. Rigid polyurethane foam insulation material has excellent thermal insulation performance and durability, but its surface is easily damaged and needs to be protected. Aluminum foil has excellent heat insulation and moisture-proof performance, which can play a protective role. Based on the above background technology, double-sided composite aluminum foil rigid polyurethane foam composite board has emerged.

[0003] In the existing production process of double-sided composite aluminum foil rigid polyurethane foam boards, rigid polyurethane foam needs to be sprayed between two aluminum foils and then pressed together to form a composite board. However, during the process of spraying rigid polyurethane foam between the two aluminum foils, due to certain errors in the spraying process, the rigid polyurethane foam cannot be evenly distributed on the surface of the aluminum foil, and even unevenness may occur, thus affecting the quality and service life of the entire composite board. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a double-sided composite aluminum foil rigid polyurethane foam composite board and its production method, solving the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a method for producing a double-sided composite aluminum foil rigid polyurethane foam composite board, specifically comprising the following steps:

[0006] The first step is to mix the ingredients for preparing the double-sided composite aluminum foil rigid polyurethane foam composite board evenly and store them in the coating box, add the foaming agent, and store the top and bottom aluminum foils used to prepare the composite board on the material rack.

[0007] Step 2: The lower aluminum foil is pulled onto the conveyor roller of the frame and conveyed by the conveyor roller. Then, the coating component is driven by the moving component to move back and forth laterally to spray the rigid polyurethane foam onto the upper surface of the lower aluminum foil. The coating component is used to evenly coat the rigid polyurethane foam on the surface of the aluminum foil. The upper aluminum foil is then conveyed to cover the top of the lower aluminum foil. The upper and lower pressure plates are used to compact the upper and lower aluminum foil and the rigid polyurethane foam between them. After standing for a period of time, it is cured to form a composite board.

[0008] Step 3: Cut the double-sided composite aluminum foil rigid polyurethane foam composite board into boards of the required size.

[0009] As a further preferred embodiment of this technical solution, multiple conveying rollers are provided and rotatably mounted on the frame. A fixed frame is fixedly connected to the top left side of the frame. The coating component is mounted on the fixed frame. A moving component is provided on the inner end of the fixed frame. A connecting component is provided on the moving component. A coating even component is provided on the connecting component.

[0010] As a further preferred embodiment of this technical solution, one end of the conveying roller extends through the frame to the outside and is fixedly connected to a first synchronous pulley. All the first synchronous pulleys are synchronously driven by the first synchronous belt. A drive motor is fixedly installed at one end of the frame. The output end of the drive motor is fixedly connected to the end of one of the conveying rollers. A tensioning wheel is provided at the top of the first synchronous belt and is rotatably mounted on the frame. Limiting wheels are fixedly connected to both ends of the conveying roller, and the two limiting wheels are located at the inner end of the frame.

[0011] As a further preferred embodiment of this technical solution, the coating assembly includes a coating tank located on one side of the frame. The coating tank is equipped with a pump body for spraying out rigid polyurethane foam. The output end of the pump body is fixedly connected to a first delivery pipe, and a control switch is provided on the first delivery pipe. The other end of the first delivery pipe is fixedly connected to an elastic hose, and the other end of the elastic hose is fixedly connected to a second delivery pipe. The other end of the second delivery pipe is fixedly connected to a nozzle.

[0012] As a further preferred embodiment of this technical solution, the top two ends of the fixed frame are fixedly connected to support plates, and a fixed rod is fixedly connected between the support plates. The elastic hose is sleeved on the fixed rod, and one end of the elastic hose is fixedly installed on the fixed rod, while the other end is fixedly installed on the connecting assembly through the second delivery pipe.

[0013] As a further preferred embodiment of this technical solution, the moving component includes fixed seats fixedly installed at both ends of the inner side of the fixed frame, and a second synchronous pulley is rotatably connected to the inner end of the fixed seat. A forward and reverse motor is fixedly connected to one end of the fixed seat, and the output end of the forward and reverse motor is fixedly connected to one end of the second synchronous pulley. A second synchronous belt is provided on the outer wall of the two second synchronous pulleys, and a slide rail is provided on one side of the second synchronous belt. A connecting component is provided on the second synchronous belt and the slide rail.

[0014] As a further preferred embodiment of this technical solution, the connecting assembly includes a clamp plate fixedly installed on the second synchronous belt. A connecting seat is fixedly connected to the bottom of the clamp plate. A traction seat is provided on one side of the bottom of the connecting seat and is slidably installed on a slide rail. A connecting plate is fixedly connected to one side of the traction seat and a coating component is installed on the connecting plate. A positioning seat is fixedly connected to one side of the connecting seat and a second conveying pipe is fixedly installed on the positioning seat. The traction seat includes a movable seat fixedly installed at the bottom of the connecting seat. Linkage seats are provided on both sides of the movable seat. The linkage seats and the movable seat are slidably installed on the slide rail. A connecting rod is fixedly connected between the two linkage seats, and the movable seat is slidably installed on the connecting rod.

[0015] As a further preferred embodiment of this technical solution, the coating assembly includes a support rod fixedly installed at one end of the second conveying pipe, a crossbar fixedly connected to the bottom of the support rod, a push rod fixedly connected to the top of the crossbar, a scraping mechanism provided at both ends of the push rod, and a cleaning mechanism provided on the scraping mechanism.

[0016] As a further preferred embodiment of this technical solution, the scraping mechanism includes a U-shaped frame fixedly installed on one side of the connecting plate, a scraper rotatably connected to the bottom of the U-shaped frame, a first spring fixedly connected to the inner end of the scraper, and the other end of the first spring fixedly connected to a push rod; the cleaning mechanism includes rotating rods rotatably installed at both ends of the U-shaped frame, a cleaning plate rotatably connected to the other end of the two rotating rods, and the other end of the cleaning plate sliding against the outer wall of the scraper; protrusions fixedly connected to both ends of the cleaning plate, a second spring fixedly connected to the protrusions, the other end of the second spring fixedly connected to the rotating rods, and a third spring fixedly connected to the side of the rotating rods near the U-shaped frame, the other end of the third spring fixedly connected to the U-shaped frame.

[0017] The present invention also discloses a double-sided composite aluminum foil rigid polyurethane foam composite board, comprising an upper and lower aluminum foil layer, and a rigid polyurethane foam sprayed between the two aluminum foil layers.

[0018] Compared with existing technologies, it has the following advantages:

[0019] By using a coating evenly coating component, the rigid polyurethane foam sprayed onto the aluminum foil surface is evenly coated, which can effectively improve the flatness of the composite board surface and avoid uneven distribution of rigid polyurethane foam on the board surface due to certain errors in the spraying process, resulting in unevenness.

[0020] The coating component allows rigid polyurethane foam to be evenly distributed on the aluminum foil surface, improving the flatness of the composite board surface and ensuring a tight bond between the upper and lower aluminum foils and the rigid polyurethane foam surface. This results in a smooth and delicate feel to the composite board surface, enhancing its aesthetic appeal.

[0021] The cleaning plate is used to clean the inside of the scraper to ensure its cleanliness. If the inside of the scraper is not cleaned in time, old material or dirt will remain on it, which will contaminate the new material. This will lead to a decline in product quality and may even prevent the product from meeting the prescribed production standards. Furthermore, if the inside of the scraper is not cleaned in time and old material or dirt remains on it, it will affect the service life of the scraper. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the conveying roller and the frame in this invention;

[0024] Figure 3 This is a schematic diagram of the structure of the coating component and the moving component in this invention;

[0025] Figure 4 This is a schematic diagram of the connecting component in this invention;

[0026] Figure 5 This is a schematic diagram of the traction seat in this invention;

[0027] Figure 6 This is a schematic diagram of the coating uniform component in this invention.

[0028] In the diagram: 1. Frame; 2. Conveyor roller; 3. Paint assembly; 4. Fixing frame; 5. Moving assembly; 6. Connecting assembly; 7. Spreading assembly; 21. First synchronous pulley; 22. First synchronous belt; 23. Drive motor; 24. Tensioner; 25. Limiting wheel; 31. Paint tank; 32. First conveying pipe; 33. Flexible hose; 34. Control switch; 35. Second conveying pipe; 36. Nozzle; 41. Support plate; 42. Fixing rod; 51. Fixing base; 52. Forward and reverse rotation motor 53. Second synchronous pulley; 54. Second synchronous belt; 55. Slide rail; 61. Clamping plate; 62. Connecting seat; 63. Traction seat; 64. Connecting plate; 65. Positioning seat; 631. Moving seat; 632. Linkage seat; 633. Connecting rod; 71. Support rod; 72. Crossbar; 73. Push rod; 74. U-shaped frame; 75. Scraper; 76. First spring; 77. Rotating rod; 78. Cleaning plate; 79. Protrusion; 710. Second spring; 711. Third spring. Detailed Implementation

[0029] The technical solutions in 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.

[0030] Please see Figures 1-6 This invention provides a technical solution: a method for producing a double-sided composite aluminum foil rigid polyurethane foam composite board, specifically including the following steps:

[0031] The first step involves mixing the ingredients for preparing the double-sided composite aluminum foil rigid polyurethane foam composite board evenly and storing them in the coating box 31. A foaming agent is then added, and the top and bottom aluminum foils used to prepare the composite board are stored on the material rack. The ingredients for preparing the double-sided composite aluminum foil rigid polyurethane foam composite board include polyether polyol, flame-retardant polyester polyol, polyester polyol, catalyst, crosslinking agent, diisocyanate, cyclopentane, and organosilicon surfactant.

[0032] Step 2: The lower aluminum foil is pulled onto the conveyor roller 2 of the frame 1 and conveyed by the conveyor roller 2. Then, the coating component 3 is driven by the moving component 5 to move back and forth laterally to spray the rigid polyurethane foam onto the upper surface of the lower aluminum foil. The rigid polyurethane foam is then evenly coated on the surface of the aluminum foil by the coating component 7. The upper aluminum foil is then conveyed to cover the top of the lower aluminum foil. The upper and lower pressure plates are used to compact the upper and lower aluminum foil and the rigid polyurethane foam between them. After standing for a period of time, it is cured to form a composite board.

[0033] Step 3: Cut the double-sided composite aluminum foil rigid polyurethane foam composite board into boards of the required size.

[0034] Please see Figure 1 Multiple conveyor rollers 2 are provided and rotatably mounted on the frame 1. A fixed frame 4 is fixedly connected to the top left side of the frame 1. The coating component 3 is set on the fixed frame 4. A moving component 5 is provided on the inner end of the fixed frame 4. A connecting component 6 is provided on the moving component 5. A coating evenly component 7 is provided on the connecting component 6. In the embodiment of the present invention, the aluminum foil is conveyed from left to right by the conveyor rollers 2. The moving component 5 drives the connecting component 6 and the coating evenly component 7 to move back and forth laterally, and cooperates with the coating component 3 to spray rigid polyurethane foam onto the upper surface of the aluminum foil below.

[0035] Please see Figure 2One end of the conveying roller 2 extends through the frame 1 to the outside and is fixedly connected to a first synchronous pulley 21. All the first synchronous pulleys 21 are synchronously driven by a first synchronous belt 22. A drive motor 23 is fixedly installed at one end of the frame 1. The output end of the drive motor 23 is fixedly connected to the end of one of the conveying rollers 2. A tension wheel 24 is provided at the top of the first synchronous belt 22 and is rotatably mounted on the frame 1. Limiting wheels 25 are fixedly connected to both ends of the conveying roller 2, and the two limiting wheels 25 are located at the inner end of the frame 1. In the embodiment of the present invention, by turning on the drive motor 23, the conveying roller 2 is driven to rotate. The conveying roller 2, together with the first synchronous pulley 21, the first synchronous belt 22 and the tension wheel 24, drives the remaining conveying rollers 2 to rotate synchronously, thereby conveying the aluminum foil. The aluminum foil moves on the two limiting wheels 25.

[0036] Please see Figure 3 The coating assembly 3 includes a coating tank 31 located on one side of the frame 1. The coating tank 31 is equipped with a pump body for spraying out rigid polyurethane foam. The output end of the pump body is fixedly connected to a first delivery pipe 32, and a control switch 34 is provided on the first delivery pipe 32. The other end of the first delivery pipe 32 is fixedly connected to an elastic hose 33, and the other end of the elastic hose 33 is fixedly connected to a second delivery pipe 35. The other end of the second delivery pipe 35 is fixedly connected to a nozzle 36. In an embodiment of the present invention, when the control switch 34 is turned on and then the pump body is turned on, the pump body will spray out the rigid polyurethane foam in the coating tank 31, and transport it to the nozzle 36 through the first delivery pipe 32, the elastic hose 33, and the second delivery pipe 35, and spray it onto the surface of the aluminum foil from the nozzle 36.

[0037] Please see Figure 3 The top two ends of the fixed frame 4 are fixedly connected to the support plates 41, and the support plates 41 are fixedly connected to the fixed rods 42. The elastic hose 33 is sleeved on the fixed rods 42, and one end of the elastic hose 33 is fixedly installed on the fixed rods 42, and the other end is fixedly installed on the connecting assembly 6 through the second conveying pipe 35. In the embodiment of the present invention, when the moving assembly 5 drives the connecting assembly 6 to move back and forth, the connecting assembly 6 will drive the second conveying pipe 35 and the elastic hose 33 to move back and forth on the fixed rods 42.

[0038] Please see Figure 3The movable component 5 includes fixed bases 51 fixedly installed at both ends of the inner side of the fixed frame 4. The inner end of the fixed base 51 is rotatably connected to a second synchronous pulley 53. One end of the fixed base 51 is fixedly connected to a forward and reverse motor 52. The output end of the forward and reverse motor 52 is fixedly connected to one end of the second synchronous pulley 53. The outer walls of the two second synchronous pulleys 53 are provided with a second synchronous belt 54. One side of the second synchronous belt 54 is provided with a slide rail 55. The connecting component 6 is provided on the second synchronous belt 54 and the slide rail 55. In the embodiment of the present invention, by turning on the forward and reverse motor 52, the second synchronous pulley 53 is driven to rotate. The second synchronous pulley 53 drives the other second synchronous pulley 53 to rotate synchronously through the second synchronous belt 54, thereby driving the connecting component 6 located on the second synchronous belt 54 and the slide rail 55 to move back and forth.

[0039] Please see Figure 4 , Figure 5 The connecting component 6 includes a clamping plate 61 fixedly installed on the second synchronous belt 54. A connecting seat 62 is fixedly connected to the bottom of the clamping plate 61. A traction seat 63 is provided on one side of the bottom of the connecting seat 62, and the traction seat 63 is slidably installed on the slide rail 55. A connecting plate 64 is fixedly connected to one side of the traction seat 63, and the coating component 7 is installed on the connecting plate 64. A positioning seat 65 is fixedly connected to one side of the connecting seat 62, and the second conveying pipe 35 is fixedly installed on the positioning seat 65.

[0040] The traction seat 63 includes a movable seat 631 fixedly installed at the bottom of the connecting seat 62. Linkage seats 632 are provided on both sides of the movable seat 631. The linkage seats 632 and the movable seat 631 are slidably installed on the slide rail 55. A connecting rod 633 is fixedly connected between the two linkage seats 632, and the movable seat 631 is slidably installed on the connecting rod 633. In an embodiment of the present invention, when the movable component 5 drives the clamping plate 61 to move back and forth, the clamping plate 61 will drive the connecting seat 62 and the movable seat 631 to move synchronously. The movable seat 631 will slide on the slide rail 55, and during the sliding process, the movable seat 631 will slide on the connecting rod 633. When the connecting rod 633 contacts one of the linkage seats 632, it will drive the coating component 7 located on the connecting plate 64 to perform a uniform coating treatment on the rigid polyurethane foam sprayed onto the aluminum foil surface.

[0041] Please see Figure 6 The coating component 7 includes a support rod 71 fixedly installed at one end of the second conveying pipe 35. The support rod 71 is L-shaped and the other end is fixedly connected to the positioning seat 65. A crossbar 72 is fixedly connected to the bottom of the support rod 71, and a push rod 73 is fixedly connected to the top of the crossbar 72. Scraping mechanisms are provided at both ends of the push rod 73, and cleaning mechanisms are provided on the scraping mechanisms.

[0042] The scraping mechanism includes a U-shaped frame 74 fixedly installed on one side of the connecting plate 64, a scraper 75 rotatably connected to the bottom of the U-shaped frame 74, a first spring 76 fixedly connected to the inner end of the scraper 75, and the other end of the first spring 76 fixedly connected to the push rod 73.

[0043] The cleaning mechanism includes rotating rods 77 rotatably mounted at both ends of a U-shaped frame 74. The other ends of the two rotating rods 77 are rotatably connected to cleaning plates 78, and the other ends of the cleaning plates 78 slide against the outer wall of a scraper 75. Protrusions 79 are fixedly connected to both ends of the cleaning plates 78, and second springs 710 are fixedly connected to the protrusions 79. The other ends of the second springs 710 are fixedly connected to the rotating rods 77. A third spring 711 is fixedly connected to the rotating rods 77 near the U-shaped frame 74, and the other end of the third spring 711 is fixedly connected to the U-shaped frame 74. In an embodiment of the present invention, Figure 6 Specifically, when the moving component 5 moves the coating component 3 and the connecting component 6 to the right, it will preferentially move the support rod 71, the crossbar 72, and the push rod 73 to the right. During the movement of the push rod 73 to the right, it will compress the first spring 76 on the right and stretch the first spring 76 on the left. The compressed first spring 76 will drive the scraper 75 to rotate to the right under the elastic force of the spring, so that it is in an upward state. At this time, the scraper 75 on the right does not contact the rigid polyurethane foam on the surface of the aluminum foil, while the stretched first spring 76 on the left will drive the scraper 75 to rotate to the right under the elastic force, so that the scraper 75 on the left... Applying a smoothing treatment to the rigid polyurethane foam sprayed onto the aluminum foil surface can effectively improve the flatness of the composite board surface. This avoids uneven distribution of the rigid polyurethane foam on the board surface due to certain errors during the spraying process, resulting in an uneven surface. The smoothing treatment by the set smoothing component 7 can make the rigid polyurethane foam evenly distributed on the aluminum foil surface, improving the flatness of the composite board surface. It also makes the upper and lower aluminum foils and the rigid polyurethane foam surface tightly bonded, giving the composite board surface a smooth and delicate feel and improving the aesthetics of the composite board.

[0044] When the coating component 7 moves to the far right, it is located at the outermost right end of the aluminum foil. This means that the coating component 7 is no longer directly above the aluminum foil. Then, when it moves to the left under the action of the moving component 5, the push rod 73 will drive the scrapers 75 on both sides to rotate to the left.

[0045] Simultaneously, as the push rod 73 moves to the left, it pushes the cleaning plate 78 downward toward the scraper 75, allowing the cleaning plate 78 to clean the inside of the scraper 75, ensuring the cleanliness of the scraper 75. This prevents old materials or dirt from remaining on the inside of the scraper 75 if it is not cleaned in time, which would contaminate the new material. This would lead to a decline in product quality and even failure to meet the prescribed production standards. Furthermore, if the inside of the scraper 75 is not cleaned in time and old materials or dirt remain on it, it would affect the service life of the scraper 75.

[0046] At the same time, the rigid polyurethane foam that has been cleaned up when it moves to the far left or far right is collected and processed, including the cleanliness of the working environment. During the movement of the cleaning plate 78, the rotating rod 77 will move. During the movement of the cleaning plate 78 and the rotating rod 77, the second spring 710 is in a stretched state and the third spring 711 is in a compressed state. This back-and-forth operation is repeated to evenly spray the rigid polyurethane foam onto the surface of the aluminum foil.

[0047] The present invention also discloses a double-sided composite aluminum foil rigid polyurethane foam composite board, comprising an upper and lower aluminum foil layer, and a rigid polyurethane foam sprayed between the two aluminum foil layers.

[0048] 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 method for producing a double-sided composite aluminum foil rigid polyurethane foam composite board, characterized in that: Specifically, the following steps are included: The first step is to mix the ingredients for preparing the double-sided composite aluminum foil rigid foam polyurethane composite board evenly and store them in the coating box (31), add the foaming agent, and store the top and bottom aluminum foils used to prepare the composite board on the material rack. Step 2: Pull the lower aluminum foil onto the conveyor roller (2) of the frame (1), and convey it by the conveyor roller (2). Then, drive the coating component (3) to move back and forth laterally through the moving component (5) to spray the rigid polyurethane foam onto the upper surface of the lower aluminum foil. Then, use the coating component (7) to evenly coat the rigid polyurethane foam onto the surface of the aluminum foil. Then, convey the upper aluminum foil to cover the top of the lower aluminum foil. Then, use the pressure plates at the upper and lower ends to compact the upper and lower aluminum foils and the rigid polyurethane foam between them. After standing for a period of time, it will solidify to form a composite board. Step 3: Cut the double-sided composite aluminum foil rigid polyurethane foam composite board into boards of the required size; The coating assembly (7) includes a support rod (71) fixedly installed at one end of the second delivery pipe (35), a crossbar (72) fixedly connected to the bottom of the support rod (71), a push rod (73) fixedly connected to the top of the crossbar (72), a scraping mechanism provided at both ends of the push rod (73), and a cleaning mechanism provided on the scraping mechanism. The scraping mechanism includes a U-shaped frame (74) fixedly installed on one side of the connecting plate (64). A scraper (75) is rotatably connected to the bottom of the U-shaped frame (74). A first spring (76) is fixedly connected to the inner end of the scraper (75). The other end of the first spring (76) is fixedly connected to the push rod (73). The cleaning mechanism includes rotating rods (77) rotatably installed at both ends of the U-shaped frame (74). A cleaning plate (78) is rotatably connected to the other end of the two rotating rods (77). The other end of the cleaning plate (78) slides against the outer wall of the scraper (75). A protrusion (79) is fixedly connected to both ends of the cleaning plate (78). A second spring (710) is fixedly connected to the protrusion (79). The other end of the second spring (710) is fixedly connected to the rotating rod (77). A third spring (711) is fixedly connected to the side of the rotating rod (77) near the U-shaped frame (74). The other end of the third spring (711) is fixedly connected to the U-shaped frame (74).

2. The production method of a double-sided composite aluminum foil rigid polyurethane foam composite board according to claim 1, characterized in that: Multiple conveying rollers (2) are provided and rotatably mounted on the frame (1). A fixed frame (4) is fixedly connected to the top left side of the frame (1). The coating component (3) is set on the fixed frame (4). A moving component (5) is provided on the inner end of the fixed frame (4). A connecting component (6) is provided on the moving component (5). A coating even component (7) is provided on the connecting component (6).

3. The method for producing a double-sided composite aluminum foil rigid polyurethane foam composite board according to claim 2, characterized in that: One end of the conveying roller (2) extends through the frame (1) to the outside and is fixedly connected to a first synchronous pulley (21). All the first synchronous pulleys (21) are synchronously driven by the first synchronous belt (22). A drive motor (23) is fixedly installed at one end of the frame (1). The output end of the drive motor (23) is fixedly connected to the end of one of the conveying rollers (2). A tension wheel (24) is provided at the top of the first synchronous belt (22). The tension wheel (24) is rotatably installed on the frame (1). Limiting wheels (25) are fixedly connected at both ends of the conveying roller (2). The two limiting wheels (25) are located at the inner end of the frame (1).

4. The method for producing a double-sided composite aluminum foil rigid polyurethane foam composite board according to claim 2, characterized in that: The coating assembly (3) includes a coating tank (31) located on one side of the frame (1). The coating tank (31) is equipped with a pump body for spraying out rigid polyurethane foam. The output end of the pump body is fixedly connected to a first delivery pipe (32). The first delivery pipe (32) is equipped with a control switch (34). The other end of the first delivery pipe (32) is fixedly connected to an elastic hose (33). The other end of the elastic hose (33) is fixedly connected to a second delivery pipe (35). The other end of the second delivery pipe (35) is fixedly connected to a nozzle (36).

5. The method for producing a double-sided composite aluminum foil rigid polyurethane foam composite board according to claim 4, characterized in that: The top two ends of the fixed frame (4) are fixedly connected to support plates (41), and the support plates (41) are fixedly connected to a fixed rod (42). The elastic hose (33) is sleeved on the fixed rod (42), and one end of the elastic hose (33) is fixedly installed on the fixed rod (42), and the other end is fixedly installed on the connecting assembly (6) through the second delivery pipe (35).

6. The method for producing a double-sided composite aluminum foil rigid polyurethane foam composite board according to claim 2, characterized in that: The moving component (5) includes a fixed base (51) fixedly installed at both ends of the inner side of the fixed frame (4), and a second synchronous pulley (53) is rotatably connected to the inner end of the fixed base (51). A forward and reverse motor (52) is fixedly connected to one end of the fixed base (51), and the output end of the forward and reverse motor (52) is fixedly connected to one end of the second synchronous pulley (53). A second synchronous belt (54) is provided on the outer wall of the two second synchronous pulleys (53). A slide rail (55) is provided on one side of the second synchronous belt (54), and a connecting component (6) is provided on the second synchronous belt (54) and the slide rail (55).

7. The method for producing a double-sided composite aluminum foil rigid polyurethane foam composite board according to claim 6, characterized in that: The connecting assembly (6) includes a clamp (61) fixedly mounted on the second synchronous belt (54). A connecting seat (62) is fixedly connected to the bottom of the clamp (61). A traction seat (63) is provided on one side of the bottom of the connecting seat (62), and the traction seat (63) is slidably mounted on the slide rail (55). A connecting plate (64) is fixedly connected to one side of the traction seat (63), and a coating assembly (7) is mounted on the connecting plate (64). A positioning seat is fixedly connected to one side of the connecting seat (62). 65), and the second conveying pipe (35) is fixedly installed on the positioning seat (65). The traction seat (63) includes a movable seat (631) fixedly installed at the bottom of the connecting seat (62). The movable seat (631) is provided with linkage seats (632) on both sides. The linkage seats (632) and the movable seat (631) are slidably installed on the slide rail (55). A connecting rod (633) is fixedly connected between the two linkage seats (632), and the movable seat (631) is slidably installed on the connecting rod (633).

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