Soundproofing board film bonding device

Abstract

The utility model provides an acoustical board laminating and bonding device, belongs to acoustical board processing technical field. It includes frame, first conveying belt and second conveying belt on frame, there is clearance between first conveying belt and second conveying belt, the third conveying belt that inclines to extend to the clearance is equipped in the below of first conveying belt, the machine frame still is equipped with first PE film pay off winder, second PE film pay off winder and the spray pipe of setting opposite third conveying belt, the film that pays off by first PE film pay off winder covers on acoustical board upper surface, the acoustical board that has covered film is conveyed by first conveying belt, the film that pays off by second PE film pay off winder is conveyed by third conveying belt and is pasted with acoustical board lower surface at clearance, second conveying belt is used for conveying the acoustical board that laminating is good, the side of first conveying belt is equipped with the edge folding structure for folding the flanging of film to the downside of acoustical board. Can realize the automatic laminating of acoustical board, and the degree of automation is high, and the laminating effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of sound insulation board processing technology, and relates to a sound insulation board coating and bonding device. Background Technology

[0002] In villa decoration, a polyethylene film (PE film) is used to wrap sound-absorbing and sound-insulating materials (such as glass wool and polyester fiber cotton) that are filled in the cavities of walls, floors, or ceilings. The purpose of this film is to prevent moisture and dampness, protecting the performance and lifespan of the sound-insulating materials and preventing them from failing due to moisture or developing mold, corrosion, or other problems. Currently, there is no automatic lamination and bonding device to apply the PE film to the sound-insulating materials. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a sound insulation board coating and bonding device that can effectively coat PE film onto sound insulation boards.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A sound insulation board laminating and bonding device includes a frame, a first conveyor belt mounted on the frame, and a second conveyor belt arranged sequentially with the first conveyor belt. There is a gap between the first and second conveyor belts. A third conveyor belt is provided below the first conveyor belt, extending upward at an incline into the gap. The frame is also provided with a first PE film unwinder, a second PE film unwinder, and a nozzle positioned opposite the third conveyor belt. The upper film unwound by the first PE film unwinder covers the upper surface of the sound insulation board. The sound insulation board covered with the upper film is conveyed by the first conveyor belt. The lower film unwound by the second PE film unwinder is conveyed by the third conveyor belt and adheres to the lower surface of the sound insulation board at the gap. The second conveyor belt is used to convey the laminated sound insulation board. The side of the first conveyor belt is provided with a folding structure for folding the folded edge of the upper film to the lower side of the sound insulation board.

[0006] The first PE film unwinder is located above the first conveyor belt, and the second PE film unwinder is located below the first conveyor belt. The first and second conveyor belts have the same conveying direction and are connected sequentially. The lower film unwound by the second PE film unwinder is conveyed from bottom to top by the third conveyor belt. During the conveying process, a nozzle sprays adhesive onto the upper surface of the lower film. The width of the upper film unwound by the first PE film unwinder is greater than the width of the sound insulation board. The width of the first conveyor belt is less than the width of the sound insulation board. The width of the second conveyor belt is greater than or equal to the width of the sound insulation board. The width of the lower film unwound by the second PE film unwinder is equal to the width of the sound insulation board. The width of the third conveyor belt is greater than or equal to the width of the lower film. The length of the sound insulation board is much greater than the width of the gap. A fourth conveyor belt is provided on both sides of the front part of the first conveyor belt located at the folding structure. The two fourth conveyor belts have the same conveying direction as the first conveyor belt and are respectively arranged adjacent to the first conveyor belt. The upper surfaces of the first conveyor belt and the fourth conveyor belt are flush. The folded edge of the upper film after being folded by the folding structure is supported by the fourth conveyor belt, ensuring that the folded edge of the upper film is always attached to the lower surface of the sound insulation board.

[0007] During operation, workers place the sound insulation board onto the first conveyor belt, which then transports it forward. The upper film, unwound by the first PE film unwinder, wraps around the front end of the sound insulation board to the underside and is pressed onto the first conveyor belt. The flange of the upper film located on the side of the sound insulation board is folded under the sound insulation board by the folding structure and moves to the fourth conveyor belt, where it presses the flange tightly against the underside of the sound insulation board. When the sound insulation board covered with the upper film moves to the gap, the lower film, transported by the third conveyor belt, adheres to the underside of the sound insulation board and covers the flange of the upper film, completing the film covering of the sound insulation board. Subsequently, the second conveyor belt transports the sound insulation board wrapped with the PE film forward to the next work station.

[0008] Since the upper and lower films are continuous and much longer than the sound insulation board, in order to separate adjacent sound insulation boards, a relatively moving cutter is set on the side of the second conveyor belt to cut the PE film between adjacent sound insulation boards.

[0009] In the aforementioned sound insulation board coating and bonding device, the folding structure includes a support plate fixed on the frame, a plurality of first supports disposed on the support plate and located on one side of the first conveyor belt, and a plurality of second supports disposed on the support plate and located on the other side of the first conveyor belt. The first supports and second supports are arranged in a one-to-one correspondence. Each first support is provided with a first roller rotatably. The angle between the axis of the plurality of first rollers and the upper surface of the first conveyor belt gradually increases along the conveying direction of the first conveyor belt. Each second support is provided with a second roller rotatably. The angle between the axis of the plurality of second rollers and the upper surface of the first conveyor belt gradually increases along the conveying direction of the first conveyor belt. The first rollers and the second rollers opposite them are arranged symmetrically.

[0010] At least three first rollers are arranged along the conveying direction of the first conveyor belt. The first roller farthest from the second conveyor belt has an acute angle (less than 90°) between its axis and the upper surface of the first conveyor belt. The first roller closest to the second conveyor belt has a straight angle (180°) between its axis and the upper surface of the first conveyor belt. The other first rollers located between these two first rollers have obtuse angles (greater than 90° and less than 180°) between their axes and the upper surface of the first conveyor belt, and these angles gradually increase along the conveying direction of the first conveyor belt.

[0011] At least three second rollers are arranged along the conveying direction of the first conveyor belt. The axis of the second roller farthest from the second conveyor belt forms an acute angle (less than 90°) with the upper surface of the first conveyor belt. The axis of the second roller closest to the second conveyor belt forms a straight angle (180°) with the upper surface of the first conveyor belt. The axes of the other second rollers located between these two rollers form an obtuse angle (greater than 90° and less than 180°) with the upper surface of the first conveyor belt, and the angles gradually increase along the conveying direction of the first conveyor belt.

[0012] Under the conveyor belt, the sound insulation board is folded up by several first rollers, with one side of the board gradually folded to the bottom. Then, by several second rollers, the other side of the board is folded up to the bottom.

[0013] Each first support is fixedly connected to a first U-shaped frame, and a first roller is rotatably disposed within the first U-shaped frame. Each second support is fixedly connected to a second U-shaped frame, and a second roller is rotatably disposed within the second U-shaped frame.

[0014] In the above-mentioned sound insulation board coating and bonding device, a first mounting plate and a second mounting plate are slidably provided on the support plate, the first bracket is provided on the first mounting plate, the second bracket is provided on the second mounting plate, a first support is provided on the support plate, a first adjusting rod extending perpendicular to the conveying direction is rotatably provided in the first support, the first adjusting rod is threadedly engaged with the first mounting plate, and a second support is also provided on the support plate, a second adjusting rod extending perpendicular to the conveying direction is rotatably provided in the second support, the second adjusting rod is threadedly engaged with the second mounting plate.

[0015] The position of the first mounting plate on the support plate can be adjusted by rotating the first adjusting rod, thereby adjusting the distance between the first rollers and the first conveyor belt. The position of the second mounting plate on the support plate can be adjusted by rotating the second adjusting rod, thereby adjusting the distance between the second rollers and the first conveyor belt to accommodate the width of different sound insulation materials.

[0016] In the above-mentioned sound insulation board film bonding device, the first bracket has a first connecting part that fits against the first mounting plate, the first connecting part is provided with a first strip groove, and a first locking bolt that is threadedly connected to the first mounting plate passes through the first strip groove; the second bracket has a second connecting part that fits against the second mounting plate, the second connecting part is provided with a second strip groove, and a second locking bolt that is threadedly connected to the second mounting plate passes through the second strip groove.

[0017] After loosening the first locking bolt, the position of the first bracket relative to the first mounting plate can be adjusted to achieve individual adjustment of the first roller. After adjustment, tighten the first locking bolt. After loosening the second locking bolt, the position of the second bracket relative to the second mounting plate can be adjusted to achieve individual adjustment of the second roller. After adjustment, tighten the second locking bolt.

[0018] In the above-mentioned sound insulation board film bonding device, a first pressure roller is rotatably provided above the first conveyor belt, located between the folding structure and the first PE film unwinder. The axis of the first pressure roller extends along the width direction of the first conveyor belt. The distance from the first pressure roller to the upper surface of the first conveyor belt is equal to or slightly greater than the thickness of the sound insulation board. The upper film led out by the first PE film unwinder passes around the first pressure roller and covers the sound insulation board.

[0019] The first pressure roller allows the upper film to fully adhere to the upper surface of the sound insulation board.

[0020] In the above-mentioned sound insulation board film bonding device, a second pressure roller is rotatably provided above the third conveyor belt, located between the nozzle and the second PE film unwinder. The axis of the second pressure roller extends along the width direction of the third conveyor belt. The lower film led out by the second PE film unwinder passes around the second pressure roller and moves upward together with the third conveyor belt.

[0021] After the lower film is pressed down by the second pressure roller, space is left for the nozzle to spray adhesive.

[0022] In the aforementioned sound insulation board coating and bonding device, a third pressure roller is rotatably mounted above the second conveyor belt. The axis of the third pressure roller extends along the width direction of the second conveyor belt, and the distance from the third pressure roller to the upper surface of the second conveyor belt is equal to or slightly greater than the thickness of the sound insulation board. The third pressure roller ensures that the lower film is completely bonded to the lower surface of the sound insulation board.

[0023] The vertical height of the first and third pressure rollers can be adjusted according to the thickness of the sound insulation material, making them widely applicable.

[0024] Compared with existing technologies, this sound insulation board coating and bonding device has the following advantages: the folding structure can automatically fold the upper film to the underside of the sound insulation board and keep it in the folded state to fit with the lower film, which has a high degree of automation, high efficiency, and reduces labor costs; the upper and lower films completely wrap the sound insulation board, and the three pressure rollers ensure that the upper / lower film is completely bonded to the sound insulation board, resulting in a good coating effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a preferred embodiment provided by this utility model.

[0026] Figure 2 This is another structural schematic diagram of a preferred embodiment provided by this utility model.

[0027] Figure 3 This is a schematic diagram of the folded edge structure provided by this utility model.

[0028] In the diagram, 1 is the frame; 2 is the first conveyor belt; 3 is the second conveyor belt; 4 is the third conveyor belt; 5 is the first PE film unwinder; 6 is the second PE film unwinder; 7 is the nozzle; 8 is the support plate; 9 is the first bracket; 10 is the second bracket; 11 is the first roller; 12 is the second roller; 13 is the first mounting plate; 14 is the second mounting plate; 15 is the first support; 16 is the first adjusting rod; 17 is the second support; 18 is the second adjusting rod; 19 is the first connecting part; 20 is the first groove; 21 is the second connecting part; 22 is the second groove; 23 is the first pressure roller; 24 is the second pressure roller; and 25 is the third pressure roller. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] like Figure 1 and Figure 2 The sound insulation board coating and bonding device shown includes a frame 1, a first conveyor belt 2 mounted on the frame 1, and a second conveyor belt 3 arranged sequentially with the first conveyor belt 2. The first conveyor belt 2 and the second conveyor belt 3 are circular and are both tensioned by tensioning wheels. One of the tensioning wheels for tensioning the first conveyor belt 2 is a drive wheel, and one of the tensioning wheels for tensioning the second conveyor belt 3 is also a drive wheel. The first conveyor belt 2 and the second conveyor belt 3 circulate under their respective drive wheels. The upper surface of the first conveyor belt 2 is flush with the upper surface of the second conveyor belt 3, and the two convey in the same direction. There is a gap between the first conveyor belt 2 and the second conveyor belt 3.

[0031] like Figure 1 and Figure 2As shown, a third conveyor belt 4 is provided below the first conveyor belt 2, extending obliquely upward into the gap. The third conveyor belt 4 is annular and is tensioned by several tensioning wheels, one of which is a drive wheel. The upper surface of the third conveyor belt 4 is a conveying surface, which extends obliquely upward along the conveying direction of the first conveyor belt 2 into the gap between the first conveyor belt 2 and the second conveyor belt 3. The highest point of the third conveyor belt 4 is not higher than the upper surface of the first conveyor belt 2.

[0032] like Figure 1 As shown, the frame 1 is also equipped with a first PE film unwinder 5, a second PE film unwinder 6, and a nozzle 7 facing the upper surface of the third conveyor belt 4. The nozzle 7 is connected to a pipeline, and the end of the pipeline is connected to the glue source. A peristaltic pump is installed outside the pipeline. When the peristaltic pump is working, it can pump the glue from the glue source to the nozzle 7 through the pipeline.

[0033] like Figure 1 As shown, the first PE film unwinder 5 is located above the first conveyor belt 2, and the second PE film unwinder 6 is located below the first conveyor belt 2. The first PE film unwinder 5 includes a first upright frame and a first roller rotatably mounted on the first upright frame. The upper film is wound around the first roller, and pulling the free end of the upper film can realize the unwinding of the upper film. Figure 2 As shown, the second PE film unwinder 6 includes a second frame and a second roll rotatably mounted on the second frame. The lower film is wound on the second roll, and the free end of the lower film is pulled to unwind the lower film.

[0034] During lamination, the upper film unwound by the first PE film unwounder 5 covers the upper surface of the sound insulation board. The sound insulation board covered with the upper film is conveyed by the first conveyor belt 2. The lower film unwound by the second PE film unwounder 6 is conveyed by the third conveyor belt 4 and adheres to the lower surface of the sound insulation board at the gap. The second conveyor belt 3 is used to convey the laminated sound insulation board. The side of the first conveyor belt 2 is provided with a folding structure for folding the upper film to the lower side of the sound insulation board.

[0035] The width of the upper film unwound by the first PE film unwounder 5 is greater than the width of the sound insulation board. The width of the first conveyor belt 2 is less than the width of the sound insulation board. The width of the second conveyor belt 3 is greater than the width of the sound insulation board. The width of the lower film unwound by the second PE film unwounder 6 is equal to the width of the sound insulation board. The width of the third conveyor belt 4 is greater than the width of the lower film. The length of the sound insulation board is much greater than the width of the gap. After folding, to prevent the folded edge from returning to its original position, a fourth conveyor belt (not shown in the figure) is provided on both sides of the front part of the first conveyor belt 2. The two fourth conveyor belts are in the same conveying direction as the first conveyor belt 2 and are respectively arranged adjacent to the first conveyor belt 2. The upper surfaces of the first conveyor belt 2 and the fourth conveyor belts are flush. The folded edge of the upper film after folding by the folding structure is supported by the fourth conveyor belt, ensuring that the folded edge of the upper film is always attached to the lower surface of the sound insulation board.

[0036] During operation, workers place the sound insulation board onto the first conveyor belt 2, which then transports it forward. The upper film, unwound by the first PE film unwinder 5, wraps around the front end of the sound insulation board from above to below it, and is pressed onto the first conveyor belt 2 by the sound insulation board. The flange of the upper film located on the side of the sound insulation board is folded to the bottom of the sound insulation board by the folding structure and moves to the fourth conveyor belt, where it presses the flange tightly against the lower side of the sound insulation board. When the sound insulation board covered with the upper film moves to the gap, the lower film, transported by the third conveyor belt 4, adheres to the lower surface of the sound insulation board and covers the flange of the upper film, completing the film covering of the sound insulation board. Subsequently, the second conveyor belt 3 transports the sound insulation board wrapped with PE film forward to the next work station.

[0037] Since the upper and lower films are continuous and much longer than the sound insulation board, in order to separate adjacent sound insulation boards, a relatively moving cutter is set on the side of the second conveyor belt 3 to cut the PE film between adjacent sound insulation boards.

[0038] like Figure 1 and Figure 2 As shown, a first pressure roller 23 is rotatably positioned above the first conveyor belt 2, located between the folding structure and the first PE film unwinder 5. The axis of the first pressure roller 23 extends along the width direction of the first conveyor belt 2. The distance from the first pressure roller 23 to the upper surface of the first conveyor belt 2 is equal to or slightly greater than the thickness of the sound insulation board. The upper film, drawn from the first PE film unwinder 5, wraps around the first pressure roller 23 and covers the sound insulation board. The first pressure roller 23 ensures that the upper film completely adheres to the upper surface of the sound insulation board.

[0039] like Figure 1 and Figure 2 As shown, a second pressure roller 24 is rotatably positioned above the third conveyor belt 4, between the nozzle 7 and the second PE film unwinder 6. The axis of the second pressure roller 24 extends along the width direction of the third conveyor belt 4. The lower film, drawn from the second PE film unwinder 6, passes over the second pressure roller 24 and moves upward with the third conveyor belt 4. After the lower film is pressed down by the second pressure roller 24, space is left for the nozzle 7 to spray adhesive.

[0040] like Figure 1 and Figure 2 As shown, a third pressure roller 25 is rotatably mounted above the second conveyor belt 3. The axis of the third pressure roller 25 extends along the width direction of the second conveyor belt 3, and the distance from the third pressure roller 25 to the upper surface of the second conveyor belt 3 is equal to or slightly greater than the thickness of the sound insulation material. The third pressure roller 25 allows the lower film to be completely adhered to the lower surface of the sound insulation material.

[0041] In this embodiment, the vertical height of the first pressure roller 23 and the third pressure roller 25 can be adjusted according to the thickness of the sound insulation material, thereby increasing the applicable range.

[0042] like Figure 3 As shown, the folding structure includes a support plate 8 fixed on the frame 1, a plurality of first supports 9 disposed on the support plate 8 and located on one side of the first conveyor belt 2, and a plurality of second supports 10 disposed on the support plate 8 and located on the other side of the first conveyor belt 2. The first supports 9 and the second supports 10 are arranged in a one-to-one correspondence. Each first support 9 is rotatably provided with a first roller 11. The angle between the axis of the plurality of first rollers 11 and the upper surface of the first conveyor belt 2 gradually increases along the conveying direction of the first conveyor belt 2. Each second support 10 is rotatably provided with a second roller 12. The angle between the axis of the plurality of second rollers 12 and the upper surface of the first conveyor belt 2 gradually increases along the conveying direction of the first conveyor belt 2. The first rollers 11 and the second rollers 12 opposite to them are arranged symmetrically.

[0043] Five first rollers 11 are arranged along the conveying direction of the first conveyor belt 2. The first roller 11 farthest from the second conveyor belt 3 has an acute angle (less than 90°) between its axis and the upper surface of the first conveyor belt 2. The first roller 11 closest to the second conveyor belt 3 has a straight angle (180°) between its axis and the upper surface of the first conveyor belt 2. The other first rollers 11 located between these two first rollers 11 have an obtuse angle (greater than 90° and less than 180°) between their axes and the upper surface of the first conveyor belt 2, and the angles gradually increase along the conveying direction of the first conveyor belt 2.

[0044] Five second rollers 12 are arranged along the conveying direction of the first conveyor belt 2. The axis of the second roller 12 farthest from the second conveyor belt 3 forms an acute angle (less than 90°) with the upper surface of the first conveyor belt 2. The axis of the second roller 12 closest to the second conveyor belt 3 forms a straight angle (180°) with the upper surface of the first conveyor belt 2. The other second rollers 12 located between these two rollers form an obtuse angle (greater than 90° and less than 180°) with the upper surface of the first conveyor belt 2, and the angles gradually increase along the conveying direction of the first conveyor belt 2.

[0045] Under the conveying of the first conveyor belt 2, the sound insulation board is gradually folded to the bottom of the sound insulation board by several first rollers 11, and the other side of the sound insulation board is gradually folded to the bottom of the sound insulation board by several second rollers 12.

[0046] Each first bracket 9 is fixedly connected to a first U-shaped frame, and a first roller 11 is rotatably disposed within the first U-shaped frame. Each second bracket 10 is fixedly connected to a second U-shaped frame, and a second roller 12 is rotatably disposed within the second U-shaped frame.

[0047] like Figure 3As shown, a first mounting plate 13 and a second mounting plate 14 are slidably mounted on the support plate 8. A first bracket 9 is mounted on the first mounting plate 13, and a second bracket 10 is mounted on the second mounting plate 14. A first support 15 is mounted on the support plate 8. A first adjusting rod 16 extending perpendicular to the conveying direction is rotatably mounted inside the first support 15. The first adjusting rod 16 is threadedly engaged with the first mounting plate 13. A second support 17 is also mounted on the support plate 8. A second adjusting rod 18 extending perpendicular to the conveying direction is rotatably mounted inside the second support 17. The second adjusting rod 18 is threadedly engaged with the second mounting plate 14.

[0048] The position of the first mounting plate 13 on the support plate 8 can be adjusted by rotating the first adjusting rod 16, thereby adjusting the distance between the first rollers 11 and the first conveyor belt 2. The position of the second mounting plate 14 on the support plate 8 can be adjusted by rotating the second adjusting rod 18, thereby adjusting the distance between the second rollers 12 and the first conveyor belt 2 to accommodate the width of different sound insulation materials.

[0049] like Figure 3 As shown, the first bracket 9 has a first connecting portion 19 that fits against the first mounting plate 13. The first connecting portion 19 has a first strip groove 20, and a first locking bolt that is threadedly connected to the first mounting plate 13 passes through the first strip groove 20. The second bracket 10 has a second connecting portion 21 that fits against the second mounting plate 14. The second connecting portion 21 has a second strip groove 22, and a second locking bolt that is threadedly connected to the second mounting plate 14 passes through the second strip groove 22.

[0050] After loosening the first locking bolt, the position of the first bracket 9 relative to the first mounting plate 13 can be adjusted to achieve individual adjustment of the first roller 11. After adjustment, the first locking bolt is tightened. After loosening the second locking bolt, the position of the second bracket 10 relative to the second mounting plate 14 can be adjusted to achieve individual adjustment of the second roller 12. After adjustment, the second locking bolt is tightened.

[0051] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A sound insulation board coating and bonding device, characterized in that, The system includes a frame (1), a first conveyor belt (2) mounted on the frame (1), and a second conveyor belt (3) arranged sequentially with the first conveyor belt (2). There is a gap between the first conveyor belt (2) and the second conveyor belt (3). A third conveyor belt (4) is provided below the first conveyor belt (2) and extends upward into the gap. The frame (1) is also provided with a first PE film unwinder (5), a second PE film unwinder (6), and a nozzle (7) positioned opposite the third conveyor belt (4). The upper film unwound by the first PE film unwinder (5) covers the upper surface of the sound insulation board. The sound insulation board covered with the upper film is conveyed by the first conveyor belt (2). The lower film unwound by the second PE film unwinder (6) is conveyed by the third conveyor belt (4) and adheres to the lower surface of the sound insulation board at the gap. The second conveyor belt (3) is used to convey the film-coated sound insulation board. The side of the first conveyor belt (2) is provided with a folding structure for folding the upper film to the lower side of the sound insulation board.

2. The sound insulation board coating and bonding device according to claim 1, characterized in that, The folding structure includes a support plate (8) fixed on the frame (1), a plurality of first supports (9) disposed on the support plate (8) and located on one side of the first conveyor belt (2), and a plurality of second supports (10) disposed on the support plate (8) and located on the other side of the first conveyor belt (2). The first supports (9) and the second supports (10) are arranged in a one-to-one correspondence. Each first support (9) is provided with a first roller (11) rotatably. The angle between the axis of the plurality of first rollers (11) and the upper surface of the first conveyor belt (2) gradually increases along the conveying direction of the first conveyor belt (2). Each second support (10) is provided with a second roller (12) rotatably. The angle between the axis of the plurality of second rollers (12) and the upper surface of the first conveyor belt (2) gradually increases along the conveying direction of the first conveyor belt (2). The first rollers (11) and the second rollers (12) opposite to them are symmetrically arranged.

3. The sound insulation board coating and bonding device according to claim 2, characterized in that, The support plate (8) is slidably provided with a first mounting plate (13) and a second mounting plate (14). The first bracket (9) is provided on the first mounting plate (13), and the second bracket (10) is provided on the second mounting plate (14). The support plate (8) is provided with a first support (15). The first support (15) is rotatably provided with a first adjusting rod (16) extending perpendicular to the conveying direction. The first adjusting rod (16) is threadedly engaged with the first mounting plate (13). The support plate (8) is also provided with a second support (17). The second support (17) is rotatably provided with a second adjusting rod (18) extending perpendicular to the conveying direction. The second adjusting rod (18) is threadedly engaged with the second mounting plate (14).

4. The sound insulation board coating and bonding device according to claim 3, characterized in that, The first bracket (9) has a first connecting part (19) that fits against the first mounting plate (13). The first connecting part (19) has a first strip groove (20). A first locking bolt that is threadedly connected to the first mounting plate (13) passes through the first strip groove (20). The second bracket (10) has a second connecting part (21) that fits against the second mounting plate (14). The second connecting part (21) has a second strip groove (22). A second locking bolt that is threadedly connected to the second mounting plate (14) passes through the second strip groove (22).

5. The sound insulation board coating and bonding device according to claim 1, 2, 3, or 4, characterized in that, A first pressure roller (23) is rotatably provided above the first conveyor belt (2) between the folding structure and the first PE film unwinder (5). The axis of the first pressure roller (23) extends along the width direction of the first conveyor belt (2). The distance from the first pressure roller (23) to the upper surface of the first conveyor belt (2) is equal to or greater than the thickness of the sound insulation board. The upper film led out by the first PE film unwinder (5) passes around the first pressure roller (23) and covers the sound insulation board.

6. The sound insulation board coating and bonding device according to claim 1, 2, 3, or 4, characterized in that, A second pressure roller (24) is rotatably provided above the third conveyor belt (4) between the nozzle (7) and the second PE film unwinder (6). The axis of the second pressure roller (24) extends along the width direction of the third conveyor belt (4). The lower film led out by the second PE film unwinder (6) passes around the second pressure roller (24) and moves upward together with the third conveyor belt (4).

7. The sound insulation board coating and bonding device according to claim 1, 2, 3, or 4, characterized in that, A third pressure roller (25) is rotatably provided above the second conveyor belt (3). The axis of the third pressure roller (25) extends along the width direction of the second conveyor belt (3). The distance from the third pressure roller (25) to the upper surface of the second conveyor belt (3) is equal to or greater than the thickness of the sound insulation board.

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