Combined rock wool, polyurethane core material composite board production line and production method

Abstract

This invention relates to a production line and method for composite rock wool and polyurethane core panels, comprising an upper plate roller conveyor line, a lower plate roller conveyor line, a rock wool conveyor line located between the upper and lower plate roller conveyor lines, and a crawler conveyor for receiving the upper plate, lower plate, and rock wool. The upper plate roller conveyor line includes: an upper forming machine, invertedly mounted on the upper plate main frame; a steering roller, mounted on the upper plate main frame and located on one side of the feeding direction of the forming machine; the rock wool conveyor line includes an upper rock wool conveyor line and a lower rock wool conveyor line, and also includes a support plate installed below the upper rock wool conveyor line; a pre-reserved glue spraying gap is provided between the upper plate and the upper layer of rock wool, a pre-reserved foaming gap is provided between the upper layer of rock wool and the lower layer of rock wool, and a pre-reserved glue spraying gap is provided between the lower layer of rock wool and the lower plate; by modifying the upper plate to be directional feeding and the lower plate to avoid it, sufficient operating space is provided for the feeding of the upper layer of rock wool and the setting of the spray gun.

Description

Technical Field

[0001] This invention relates to the field of sandwich panel production technology, and in particular to a production line and production method for composite panels made of rock wool and polyurethane core material. Background Technology

[0002] Polyurethane sandwich panels consist of an upper panel, a lower panel, and a core layer. During production, the upper and lower steel panels are first cold-bent to form overlapping edges using a roll forming line. Space is reserved between the upper and lower panels for filling the core layer. The two sides are connected by continuous side blocks of different specifications to form a continuous closed cavity. Two sets of polyurethane chemicals, black and white, are mixed and extruded onto the lower steel panel through a foaming machine. Through heating and their own chemical reactions, the foam grows, its viscosity gradually increases, and finally, it completely solidifies within the cavity to form the foamed board.

[0003] In the production of rock wool sandwich panels, the upper and lower steel plates are cured with glue in a double-track conveyor under pressure and heat to form a composite panel with rock wool core material. Summary of the Invention

[0004] To address the shortcomings of existing production technologies, the applicant provides a structurally sound production line and method for composite rock wool and polyurethane core panels. Fire-resistant rock wool is wrapped around a central polyurethane core for fireproofing. The composite panel consists of five layers: steel plate, polyurethane profile, and rock wool. The bonding between the rock wool and polyurethane is achieved directly through the viscosity of the polyurethane during foaming, allowing the polyurethane to provide insulation while the outer rock wool provides fire resistance.

[0005] The technical solution adopted in this invention is as follows:

[0006] A production line for composite rock wool and polyurethane core panels includes an upper panel roller conveyor line, a lower panel roller conveyor line, a rock wool conveyor line located between the upper and lower panel roller conveyor lines, and a tracked machine for receiving the upper panel, lower panel, and rock wool.

[0007] The upper plate roller conveyor line includes:

[0008] Upper board main frame,

[0009] The upper forming machine is installed upside down on the upper plate main frame.

[0010] The steering roller is mounted on the upper plate main frame and located on the feeding side of the upper forming machine.

[0011] The rock wool conveying line includes an upper rock wool conveying line and a lower rock wool conveying line, with two sets of rock wool being conveyed in parallel into the crawler machine; the frame of the rock wool conveying line is equipped with a support plate to support the upper rock wool; a spraying gap is reserved between the upper plate and the upper layer of rock wool, a foaming gap is reserved between the upper layer of rock wool and the lower layer of rock wool, and a spraying gap is reserved between the lower layer of rock wool and the lower plate.

[0012] An upper glue spray gun head is installed in the glue spraying gap between the upper board and the upper layer of rock wool.

[0013] A foaming gun head is installed in the foaming gap between the upper and lower layers of rock wool.

[0014] A lower glue spray gun head is installed in the glue spraying gap between the lower layer of rock wool and the lower board.

[0015] The upper plate, upper layer of rock wool, polyurethane chemical material, lower layer of rock wool, and lower plate all enter the crawler machine at the same time.

[0016] As a further improvement to the above technical solution:

[0017] The upper forming machine includes:

[0018] The molding machine body is mounted on the upper plate main frame.

[0019] The pressure roller assembly is slidably connected to the forming machine body and is set at an angle to the horizontal plane.

[0020] The pressure roller adjustment assembly is connected between the molding machine body and the pressure roller assembly, driving the pressure roller assembly to slide on the molding machine body.

[0021] The pressure roller adjusting assembly includes a horizontal lead screw and a vertical lead screw.

[0022] The horizontal lead screw drives the pressure roller assembly to reciprocate in a direction perpendicular to the feed direction.

[0023] The vertical screw drives the pressure roller assembly to move vertically back and forth along the forming machine body at the end opposite to the steering roller.

[0024] The upper plate main frame is provided with a skylight, which is set directly above any instantaneous position in the sliding path of the pressure roller assembly.

[0025] The pallet is inclined and extends to the tangent position of the track opening.

[0026] The two ends of the pallet are fastened to the upper plate main frame, and the end of the pallet near the track machine has a gap with the lower layer of rock wool.

[0027] The lower plate's roller conveyor line is located below the working reference height and is equipped with a lifting structure that adjusts the lower plate's entry angle.

[0028] The upper glue spray gun head, foam spray gun head, and lower glue spray gun head are positioned close to the tracked machine.

[0029] The glue spray gun head is located between the upper forming machine and the tracked machine.

[0030] The lower glue spray gun head is located between the lifting structure and the tracked machine.

[0031] The foaming gun head is located on the same side of the feeding direction as the upper and lower glue spraying gun heads.

[0032] The upper glue spray gun head, the foaming gun head, and the lower glue spray gun head are all slidably arranged along the feeding direction.

[0033] A production method for composite panels using a combined rock wool and polyurethane core material production line includes the following steps:

[0034] The upper uncoiler and lower uncoiler are located on both sides of the feed direction of the crawler conveyor's feed inlet.

[0035] The upper plate is drawn out from the upper uncoiler, wound around the steering roller, and pressed by the upper forming machine to obtain a folded edge before being fed into the crawler machine.

[0036] The lower plate is drawn out from the lower uncoiler, passes through the corresponding lower forming machine, and is fed into the crawler.

[0037] Maintain proper spacing for adhesive application and foaming between the upper board and the upper layer of rock wool, between the upper layer of rock wool and the lower layer of rock wool, and between the lower layer of rock wool and the lower board.

[0038] Polyurethane chemical material is sprayed between the upper and lower layers of rock wool.

[0039] The upper and lower glue gun nozzles spray glue onto the upper and lower panels, respectively.

[0040] As the upper plate and upper layer of rock wool, and the lower plate and lower layer of rock wool are fed into the track conveyor, the upper plate and upper layer of rock wool adhere to each other, and the lower plate and lower layer of rock wool pass over the pallet.

[0041] The semi-finished product is fed into a tracked machine for hot pressing to obtain the finished product.

[0042] The beneficial effects of this invention are as follows:

[0043] This invention has a compact and reasonable structure and is easy to operate. By changing the conventional straight feeding of the upper plate to a directional feeding, and then rolling and bending the upper plate after the directional feeding, it provides sufficient operating space for the feeding of the upper layer of rock wool and the setting of the spray gun; and does not affect the folded edge shape after rolling.

[0044] In this invention, the length of the upper plate during the feeding process where pre-applied adhesive is applied but not bonded to the upper rock wool is shortened. If the upper plate is set along the feeding direction, there is only space to install the adhesive spray gun at a considerable distance from the tracked machine; in this invention, because the upper plate adopts a directional feeding method, the original feeding position of the upper plate can be used as the feeding position of the upper rock wool, so as to facilitate the feeding of the upper rock wool.

[0045] The gap between the conventional lower plate and the lower layer of rock wool is small, making it difficult to place the spray gun. In this invention, the lower plate is lowered to avoid this gap. The conventional lower plate feeding height is the working reference height. In this invention, the lower layer rock wool conveyor line is placed at the working reference height, and the lower plate roller conveyor line is located below the working reference height. This results in a larger gap between the lower layer of rock wool and the lower plate, creating space for placing the spray gun.

[0046] Since the upper layer of rock wool occupies the position of the conventional upper board and the lower layer of rock wool occupies the position of the conventional lower board, the large gap between the upper and lower layers of rock wool facilitates foaming.

[0047] In this invention, the spacing between the pressure roller assemblies on both sides of the inverted upper forming machine is adjustable, making it suitable for the production of sandwich panels of different specifications; a skylight is installed on the top of the inverted structure to facilitate the replacement and disassembly of the pressure roller assemblies. Attached Figure Description

[0048] Figure 1 This is a schematic diagram illustrating the working principle of the present invention.

[0049] Figure 2 This is an overall structural diagram of the present invention.

[0050] Figure 3 This is a perspective view of the overall structure of the present invention from another angle.

[0051] Figure 4 This is the front view of the present invention.

[0052] Figure 5 for Figure 4 The enlarged view in section A is used to illustrate the relationship between the support plate and the upper and lower layers of rock wool.

[0053] Figure 6 This is a perspective view of the overall structure of the present invention from another angle.

[0054] Figure 7 This is a partial front view of the present invention, used to show the position of the lifting structure.

[0055] Figure 8 This is a front view of the upper forming machine of the present invention.

[0056] Figure 9 This is a perspective view of the upper forming machine of the present invention.

[0057] Figure 10 This is a perspective view of the upper forming machine of the present invention from another angle.

[0058] Figure 11 This is a schematic diagram of the hidden top cover of the upper forming machine according to the present invention.

[0059] Figure 12 This is a perspective view of the upper forming machine of the present invention, with the skylight open, indicating that it is in a maintenance state.

[0060] The components include: 1. Upper frame; 2. Upper plate; 3. Lower plate; 4. Upper layer rock wool; 5. Lower layer rock wool; 6. Upper forming machine; 7. Turning roller; 8. Upper glue spray gun head; 9. Foaming gun head; 10. Lower glue spray gun head; 11. Support plate; 12. Lifting structure; 13. Tracked machine; 14. Lower forming machine.

[0061] 101. Skylight;

[0062] 601. Forming machine body; 602. Pressure roller assembly; 603. Horizontal lead screw; 604. Vertical lead screw. Detailed Implementation

[0063] The specific embodiments of the present invention will now be described with reference to the accompanying drawings.

[0064] like Figures 1-12 As shown, Figure 1 As shown, the combined rock wool and polyurethane core composite board production line of this embodiment includes a roller conveyor line for the upper plate 2, a roller conveyor line for the lower plate 3, a rock wool conveyor line located between the roller conveyor lines for the upper plate 2 and the lower plate 3, and a crawler machine 13 for receiving the upper plate 2, the lower plate 3, and the rock wool.

[0065] The roller conveyor line of upper plate 2 includes:

[0066] Upper plate main frame 1,

[0067] The upper forming machine 6 is installed upside down on the upper plate main frame 1.

[0068] The steering roller 7 is mounted on the upper plate main frame 1 and is located on the feeding side of the upper forming machine 6.

[0069] The rock wool conveying line includes an upper rock wool conveying line and a lower rock wool conveying line. The two sets of rock wool are conveyed into the crawler in parallel. The frame of the rock wool conveying line is equipped with a support plate 11 to support the upper rock wool. A spraying gap is reserved between the upper plate 2 and the upper layer of rock wool 4, a foaming gap is reserved between the upper layer of rock wool 4 and the lower layer of rock wool 5, and a spraying gap is reserved between the lower layer of rock wool 5 and the lower plate 3.

[0070] An upper glue spray gun head 8 is provided in the glue spraying gap between the upper plate 2 and the upper rock wool 4.

[0071] A foaming gun head 9 is provided in the foaming gap between the upper layer rock wool 4 and the lower layer rock wool 5.

[0072] A lower glue spray gun head 10 is provided in the glue spraying gap between the lower rock wool 5 and the lower plate 3.

[0073] The upper plate 2, upper layer rock wool, polyurethane chemical material, lower layer rock wool, and lower plate all enter the crawler machine 13 at the same time.

[0074] The upper forming machine 6 includes:

[0075] The molding machine body 601 is mounted on the upper plate main frame 1.

[0076] The pressure roller assembly 602 is slidably connected to the forming machine body 601, and is set at an angle to the horizontal plane.

[0077] The pressure roller adjustment assembly is connected between the molding machine body 601 and the pressure roller assembly 602, and drives the pressure roller assembly 602 to slide on the molding machine body 601.

[0078] The pressure roller adjusting assembly includes a horizontal lead screw 603 and a vertical lead screw 604.

[0079] The horizontal lead screw 603 pushes the pressure roller assembly 602 to reciprocate in a direction perpendicular to the feeding direction.

[0080] The vertical lead screw 604 drives the pressure roller assembly 602 to move vertically back and forth along the forming machine body 601 at one end away from the steering roller 7.

[0081] A skylight 101 is provided on the upper plate main frame 1. The skylight 101 is positioned directly above any instantaneous position in the sliding path of the pressure roller assembly 602.

[0082] The pallet 11 is inclined and extends to the tangent position of the opening of the track machine 13.

[0083] The two ends of the pallet 11 are fastened to the upper plate main frame 1. The end of the pallet 11 near the track machine 13 has a gap with the lower layer of rock wool 5.

[0084] The roller conveyor line of the lower plate 3 is located below the working reference height and is equipped with a lifting structure 12, which adjusts the entrance angle of the lower plate 3.

[0085] The upper glue spray gun head 8, the foam spray gun head 9, and the lower glue spray gun head 10 are positioned close to the tracked vehicle 13.

[0086] The upper glue spray gun head 8 is located between the upper molding machine 6 and the tracked machine 13.

[0087] The lower glue spray gun head 10 is located between the lifting structure 12 and the tracked machine 13.

[0088] The foaming gun head 9 is located on the same side of the feeding direction as the upper glue spraying gun head 8 and the lower glue spraying gun head 10.

[0089] The upper glue spray gun head 8, the foaming gun head 9, and the lower glue spray gun head 10 are all slidably set along the feeding direction.

[0090] This embodiment utilizes a composite board made of combined rock wool and polyurethane core material.

[0091] The production method of the production line includes the following steps:

[0092] The upper uncoiler and the lower uncoiler are located on both sides of the feed inlet of the crawler conveyor 13 in the feeding direction.

[0093] The upper plate 2 is drawn out from the upper uncoiler, passes through the steering roller 7, is rolled by the upper forming machine 6 to obtain the folded edge, and is sent into the crawler machine 13;

[0094] The lower plate 3 is drawn out from the lower uncoiler, passes through the corresponding lower forming machine 14, and is fed into the track machine 13;

[0095] Maintain proper spacing for adhesive application and foaming between the upper board 2 and the upper layer of rock wool 4, between the upper layer of rock wool 4 and the lower layer of rock wool 5, and between the lower layer of rock wool 5 and the lower board 3.

[0096] Polyurethane chemical material is sprayed between the upper layer of rock wool 4 and the lower layer of rock wool 5.

[0097] Upper glue spray gun head 8 and lower glue spray gun head 10 spray glue onto upper panel 2 and lower panel 3.

[0098] As the upper plate 2 and the upper layer of rock wool 4, and the lower plate 3 and the lower layer of rock wool 5 are fed into the track machine 13, the upper plate 2 and the upper layer of rock wool 4 are in contact, and the lower plate 3 and the lower layer of rock wool 5 are in contact. The upper layer of rock wool 4 passes over the pallet 11.

[0099] The semi-finished product is fed into the track machine 13 for hot pressing to obtain the finished product.

[0100] The specific structure and working process of this invention are as follows:

[0101] like Figure 1 and Figure 2 As shown, in this invention, the feeding position of the upper plate 2 is changed to be above the crawler, and the upper plate 2 enters the upper forming machine 6 and the crawler in reverse. The position of the lower plate 3 is moved downward to avoid this, and the original position of the lower plate 3 is changed to the feeding position of the lower layer of rock wool 5.

[0102] like Figure 3As shown, in order to ensure that the upper layer of rock wool 4 maintains a gap with the lower layer of rock wool 5 to accommodate the foam layer during the gradual feeding of the track machine, a support plate 11 is fixedly installed on the upper plate main frame 1. The support plate 11 has a foam gap with the lower layer of rock wool 5, preventing the upper layer of rock wool 4 from sagging onto the foam under gravity, thus avoiding the problem of squeezing the foam and affecting the thickness of the finished product.

[0103] like Figure 4 and Figure 5 As shown, to ensure sufficient operating clearances between the upper board 2 and the upper layer rock wool 4, between the upper layer rock wool 4 and the lower layer rock wool 5, and between the lower layer rock wool 5 and the lower board 3 for spraying adhesive and expanding foam, the upper board 2 is bent from above the upper forming machine 6 and enters the upper forming machine 6 in the reverse direction. An upper adhesive spraying gun head 8 is set at the outlet of the upper forming machine 6; a expanding foaming gun head 9 is set below the upper forming machine 6, between the upper layer rock wool 4 and the lower layer rock wool 5; and a lower adhesive spraying gun head 10 is set between the lower layer rock wool 5 and the lower board 3. The lower adhesive spraying gun head 10 is located below the upper adhesive spraying gun head 8.

[0104] During processing, the upper plate 2 enters the upper forming machine 6, where it is rolled to obtain folded edges. Then, adhesive is sprayed onto the bottom surface of the upper plate 2. As the upper plate 2 gradually approaches the upper layer of rock wool 4, it adheres to the upper layer of rock wool 4. The lower plate 3 is then combined with a reference. Figure 7 A lifting structure 12 is provided. In this embodiment, the lifting structure 12 can be a lift or an elastic element such as a spring. After the top surface of the lower plate 3 is sprayed with adhesive, the lower plate 3 is lifted by the lift, reducing the gap between the lower plate 3 and the lower layer of rock wool 5, thus bonding the lower plate 3 and the lower layer of rock wool 5. During this process, the support plate 11 supports the upper layer of rock wool 4, ensuring that the space for the foam adhesive does not shrink. The support plate 11 is as follows: Figure 4 As shown, it extends all the way to directly below the pulley of the track machine, so that the semi-finished sandwich panel entering the track machine can maintain the height of the foam layer, resulting in high dimensional accuracy after hot pressing.

[0105] like Figure 8 The diagram shown is a schematic of the inverted upper forming machine 6 in this invention. (Refer to reference...) Figure 9 and Figure 10 The pressure roller assembly 602 of the upper forming machine 6 is inclined, and the inclination of the pressure roller assembly 602 is similar to that of the tangent of the guide roller 7, which reduces the bending fatigue of the upper plate 2. The upper plate 2 extending from the guide roller 7 is pressed by the pressure roller assemblies 602 on both sides to form a folded edge.

[0106] like Figure 11 As shown, the horizontal distance between the two pressure roller assemblies 602 is adjustable, and the vertical height of the pressure roller assembly 602 away from the guide roller 7 is adjustable. The purpose of adjusting the horizontal distance is to accommodate upper plates 2 of different widths, and the purpose of adjusting the vertical distance is to adjust the tilt of the pressure roller assembly 602.

[0107] In this embodiment, both horizontal and vertical adjustments utilize a lead screw structure. The rotation of the lead screw drives the pressure roller assembly 602, which is mounted on the lead screw. At the end of the pressure roller assembly 602 closest to the guide roller 7, a slide rail structure is provided, allowing the pressure roller assembly 602 to slide on the upper forming machine body 6. When the horizontal lead screw 603 moves the pressure roller assembly 602 away from the guide roller 7, the other end of the pressure roller assembly 602 moves accordingly. When the vertical lead screw 604 moves the end of the pressure roller assembly 602, the other end remains stationary, thereby adjusting the angle of the pressure roller assembly 602.

[0108] like Figure 11 The diagram shows a working condition where the pressure roller assembly 602 of the present invention needs to be replaced or disassembled. In the diagram, the skylight 101 is open, and the pressure roller assembly 602 moves to a position directly below the skylight 101, allowing workers to pass through the skylight 101 to repair or replace the pressure roller assembly 602.

[0109] In this embodiment, all conveyor lines use conveyor rollers.

[0110] This invention innovatively changes the feeding position of the upper plate 2 and the feeding height of the lower plate 3, reserving space at the original feeding position of the upper plate 2 for feeding the upper layer of rock wool 4; and reserving space at the original feeding position of the lower plate 3 for feeding the lower layer of rock wool 5. The foaming spacing between the upper layer of rock wool 4 and the lower layer of rock wool 5, the adhesive spraying spacing between the upper layer of rock wool 4 and the upper plate 2, and the adhesive spraying spacing between the lower layer of rock wool 5 and the lower plate 3 are ample, allowing the spray gun to be moved closer to the track machine, greatly reducing the amount of raw material that needs to be sprayed with adhesive but cannot be made into a finished product during startup. This also achieves the goal of saving materials.

[0111] The above description is an explanation of the present invention and not a limitation thereof. The scope of the present invention is defined by the claims. Within the scope of protection of the present invention, any form of modification may be made.

Claims

1. A production line for composite rock wool and polyurethane core panels, comprising a roller conveyor line for an upper plate (2), a roller conveyor line for a lower plate (3), a rock wool conveyor line located between the roller conveyor line for the upper plate (2) and the roller conveyor line for the lower plate (3), and a tracked machine (13) for receiving the upper plate (2), the lower plate (3), and the rock wool, characterized in that: The upper plate (2) roller conveyor line includes: Upper plate main frame (1), The upper forming machine (6) is installed upside down on the upper plate main frame (1). The steering roller (7) is installed on the upper plate main frame (1) and located on the feeding side of the upper forming machine (6). The rock wool conveying line includes an upper rock wool conveying line and a lower rock wool conveying line. The two sets of rock wool are conveyed into the crawler in parallel. The frame of the rock wool conveying line is equipped with a support plate (11) to support the upper rock wool. A spraying gap is reserved between the upper plate (2) and the upper layer rock wool (4), a foaming gap is reserved between the upper layer rock wool (4) and the lower layer rock wool (5), and a spraying gap is reserved between the lower layer rock wool (5) and the lower plate (3). An upper glue spray gun head (8) is provided in the glue spraying gap between the upper plate (2) and the upper layer of rock wool (4). A foaming gun head (9) is provided in the foaming gap between the upper layer rock wool (4) and the lower layer rock wool (5). A lower glue spray gun head (10) is provided in the glue spraying gap between the lower layer rock wool (5) and the lower plate (3).

2. The production line for composite rock wool and polyurethane core panels as described in claim 1, characterized in that: The upper forming machine (6) includes: The molding machine body (601) is mounted on the upper plate main frame (1). The pressure roller assembly (602) is slidably connected to the forming machine body (601) and is set at an angle to the horizontal plane. The pressure roller adjustment assembly is connected between the molding machine body (601) and the pressure roller assembly (602), and drives the pressure roller assembly (602) to slide on the molding machine body (601).

3. The production line for composite rock wool and polyurethane core material as described in claim 2, characterized in that: The pressure roller adjusting assembly includes a horizontal lead screw (603) and a vertical lead screw (604). The horizontal lead screw (603) pushes the pressure roller assembly (602) to reciprocate in a direction perpendicular to the feed direction. The vertical lead screw (604) drives the pressure roller assembly (602) to move vertically back and forth along the forming machine body (601) away from the guide roller (7).

4. The production line for composite rock wool and polyurethane core panels as described in claim 2, characterized in that: The upper plate main frame (1) is provided with a skylight (101), which is located directly above any instantaneous position in the sliding path of the pressure roller assembly (602).

5. The production line for composite rock wool and polyurethane core panels as described in claim 1, characterized in that: The pallet (11) is inclined and extends to the tangent position of the opening of the track machine (13).

6. The production line for composite rock wool and polyurethane core material as described in claim 5, characterized in that: The two ends of the pallet (11) are fastened to the upper plate main frame (1). The pallet (11) is close to one end of the track machine (13) and has a gap with the lower layer of rock wool (5).

7. The production line for composite rock wool and polyurethane core panels as described in claim 1, characterized in that: The roller conveyor line of the lower plate (3) is located below the working reference height and is equipped with a lifting structure (12), which adjusts the entrance angle of the lower plate (3).

8. The production line for composite rock wool and polyurethane core material as described in claim 7, characterized in that: The upper glue spray gun head (8), the foaming gun head (9), and the lower glue spray gun head (10) are positioned close to the track machine (13). The upper glue spray gun head (8) is located between the upper molding machine (6) and the track machine (13). The lower glue spray gun head (10) is located between the lifting structure (12) and the tracked machine (13). The foaming gun head (9) is located on the same side of the feeding direction of the upper glue spraying gun head (8) and the lower glue spraying gun head (10).

9. The production line for composite rock wool and polyurethane core material as described in claim 8, characterized in that: The upper glue spray gun head (8), the foaming gun head (9), and the lower glue spray gun head (10) are all slidably arranged along the feeding direction.

10. A production method using the composite rock wool and polyurethane core material production line according to claim 1, characterized in that, Includes the following steps: The upper uncoiler and the lower uncoiler are located on both sides of the feed direction of the feed inlet of the crawler (13). The upper plate (2) is drawn out from the upper uncoiler, passes through the turning roller (7), and is rolled by the upper forming machine (6) to obtain the folded edge, and then sent into the crawler machine (13); The lower plate (3) is drawn out from the lower uncoiler, passes through the corresponding lower forming machine (14), and is fed into the track machine (13); Maintain the spraying and foaming gaps between the upper board (2) and the upper layer of rock wool (4), between the upper layer of rock wool (4) and the lower layer of rock wool (5), and between the lower layer of rock wool (5) and the lower board (3). Polyurethane chemical material is sprayed between the upper layer of rock wool (4) and the lower layer of rock wool (5). The upper glue spray gun head (8) and the lower glue spray gun head (10) spray glue onto the upper plate (2) and the lower plate (3). As the upper plate (2) and the upper layer of rock wool (4), and the lower plate (3) and the lower layer of rock wool (5) are fed into the track machine (13), the upper plate (2) and the upper layer of rock wool (4) are in contact, and the lower plate (3) and the lower layer of rock wool (5) are in contact. The upper layer of rock wool (4) passes over the pallet (11). The semi-finished product is fed into the track machine (13) for hot pressing to obtain the finished product.

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