Mineral wool board film covering device

Abstract

The invention relates to the technical field of mineral wool board production, in particular to a mineral wool board film coating device which comprises a rack, a glue melting assembly, a glue uniformizing assembly and a hot pressing assembly, and the glue melting assembly is arranged on the rack, makes contact with a surface layer film and is used for melting glue between the surface layer film and a mineral wool board; the glue uniformizing assembly is arranged on the rack, is positioned on the downstream side of the glue melting assembly, and is used for uniformly paving the melted glue between the mineral wool board and the surface layer film; the hot-pressing assembly is arranged on the rack and located on the downstream side of the glue uniformizing assembly, and the hot-pressing assembly enables the mineral wool board and the surface layer film to be glued by extruding glue. Bubbles can be prevented from occurring after the surface layer film at the position without the adhesive layer and the mineral wool board are laminated, film surface wrinkles caused by inconsistent thickness of the adhesive layer are avoided, the edge of the laminated mineral wool board is effectively prevented from tilting, and bonding between the mineral wool board and the surface layer film is firmer.

Description

Technical Field

[0001] The present application relates to the technical field of mineral wool board production, and in particular to a mineral wool board coating device. Background Art

[0002] With the rapid development of the mineral wool board industry, the mineral wool board product system has been gradually improved. The laminating machine is the main equipment for manufacturing the film-coated mineral wool board. The laminating machine heats, glues, and laminates the semi-finished mineral wool board to produce the board. In the existing laminating process, the laminating machine usually relies on the original electric heating roller to heat the film and the mineral wool board to melt the glue to achieve lamination.

[0003] However, this traditional electric heating method has certain limitations. For example, when processing some thicker films or mineral wool boards, the original electric heating roller cannot provide sufficient and uniform heat, resulting in quality problems such as bubbles, loose coating, and edge warping on the mineral wool board after coating. Summary of the invention

[0004] The present application provides a mineral wool board coating device, which is used to solve the problems in the prior art that the heating roller cannot provide sufficient and uniform heat, resulting in bubbles, loose coating and edge warping in the mineral wool board after coating.

[0005] On the one hand, the present application provides a mineral wool board laminating device for gluing a mineral wool board to a surface film, comprising:

[0006] frame;

[0007] The glue melting component is arranged on the frame and in contact with the surface film, and is used to melt the glue between the surface film and the mineral wool board;

[0008] The glue spreading component is arranged on the frame and located at the downstream side of the glue melting component, and is used to spread the melted colloid evenly between the mineral wool board and the surface film;

[0009] The hot pressing component is arranged on the frame and is located at the downstream side of the glue-spreading component. The hot pressing component glues the mineral wool board and the surface film by squeezing the colloid.

[0010] In one possible design, the melt assembly includes:

[0011] The first heating roller has a first heating chamber, and the heat transfer oil can flow from the inlet of the first heating chamber to the outlet of the first heating chamber.

[0012] In one possible design, the heat press assembly includes:

[0013] The second heating roller has a second heating chamber, and the heat transfer oil can flow from the inlet of the second heating chamber to the outlet of the second heating chamber;

[0014] The pressure roller is arranged on the side of the mineral wool board away from the surface film, is arranged opposite to the second hot roller, and is used for pressing the mineral wool board together with the second hot roller.

[0015] In a possible design, the first hot roller and the second hot roller respectively include:

[0016] The inner roller has a spiral groove on its outer side wall, an oil inlet is provided at the bottom of the spiral groove near one end, and an oil outlet is provided at the bottom of the spiral groove near the other end;

[0017] The central rotating shaft is arranged along the axial direction of the inner roller, and the two ends of the central rotating shaft are respectively provided with an oil inlet cavity and an oil outlet cavity, the oil inlet cavity and the oil inlet port are connected through a first hollow rod, and the oil outlet cavity and the oil outlet port are connected through a second hollow rod;

[0018] The inner side wall of the outer roller is matched with the notch of the spiral groove, and the inner side wall of the outer roller and the inner wall of the spiral groove jointly form a first heating chamber / a second heating chamber;

[0019] The fixing ring is arranged at the same end of the outer roller and the inner roller and is used to connect the inner roller and the outer roller.

[0020] In one possible design, an oil inlet pipe and an oil outlet pipe are respectively provided at both ends of the central rotating shaft, and a rotating dynamic seal connection is formed between the outer wall of the oil inlet pipe and the inner wall of the oil inlet chamber, and a rotating dynamic seal connection is formed between the outer wall of the oil outlet pipe and the inner wall of the oil outlet chamber.

[0021] In a possible design, a temperature sensor is provided on the outer roller.

[0022] In a possible design, the glue spreading assembly includes a vibration plate, which is in contact with the surface film and can vibrate in a direction perpendicular to the surface film.

[0023] In a possible design, the glue spreading assembly further includes a limiting roller, which is arranged on a side of the mineral wool board away from the surface film and opposite to the vibration plate.

[0024] In a possible design, the device further includes an auxiliary conveying roller, the roller surface of the auxiliary conveying roller has a damping layer, and the damping layer transports the surface film by contacting with the surface film.

[0025] In a possible design, the device further includes a power assembly, which is respectively connected to the central shaft, the roller shaft of the pressure roller, the roller shaft of the limit roller, and the roller shaft of the auxiliary conveying roller, and the power assembly is used to drive the first hot roller, the second hot roller, the pressure roller, the limit roller, and the auxiliary conveying roller to rotate around their own axes;

[0026] And / or, the roller surfaces of the first heating roller, the second heating roller, the pressure roller, the limiting roller and the auxiliary conveying roller are respectively provided with anti-sticking coatings.

[0027] The beneficial effects of this application are as follows:

[0028] The mineral wool board coating device of the present application provides a melt-glue component and utilizes the heating function of the melt-glue component to heat up the colloid between the surface film and the mineral wool board so that it melts; provides a glue-spreading component and utilizes the glue-spreading component to drive the melted colloid to vibrate at a high frequency, so that the melted colloid is spread evenly and evenly between the mineral wool board and the surface film, and the thickness of the glue layer between the mineral wool board and the surface film is kept basically consistent, effectively preventing the phenomenon of locally thick glue layer, locally thin glue layer or no glue layer (especially at the edge); provides a hot pressing component and utilizes the hot pressing component to extrude the surface film, the mineral wool board and the evenly spread colloid in a direction perpendicular to the surface film, so as to avoid bubbles in the surface film and the mineral wool board at the position without glue layer after coating, avoid wrinkles on the film surface caused by inconsistent glue layer thickness, effectively prevent the edge of the mineral wool board after coating from lifting, and make the bonding between the mineral wool board and the surface film more firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 A schematic diagram of the structure of a mineral wool board coating device provided in an embodiment of the present application;

[0031] Figure 2 A schematic diagram of the structure of a first hot roller and a second hot roller of a mineral wool board laminating device provided in an embodiment of the present application;

[0032] Figure 3 A schematic structural diagram of a glue spreading assembly of a mineral wool board coating device provided in an embodiment of the present application.

[0033] Reference numerals:

[0034] 100, frame; 200, melt assembly; 210, first hot roller; 211, first heating chamber; 212, inner roller; 213, spiral groove; 2131, oil inlet; 2132, oil outlet; 214, central shaft; 2141, oil inlet chamber; 2142, oil outlet chamber; 215, first hollow rod; 216, second hollow rod; 217, outer roller; 218, fixing ring; 220, oil inlet pipeline; 230, Oil outlet pipeline; 300, glue spreading assembly; 310, vibration plate; 330, cam; 331, first wheel shaft; 332, second wheel shaft; 340, connecting rod; 350, spring; 360, limit roller; 400, hot pressing assembly; 410, second hot roller; 411, second heating chamber; 420, pressure roller; 500, auxiliary conveying roller; 510, damping layer; 610, mineral wool board; 620, surface film; 630, colloid. DETAILED DESCRIPTION

[0035] The technical solution of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0036] Combine the following Figure 1-Figure 3 , describing the mineral wool board 610 coating device provided in an embodiment of the present application.

[0037] Reference Figure 1 As shown, the mineral wool board 610 coating device provided in the embodiment of the present application is used to glue the mineral wool board 610 to the surface film 620. The device includes a frame 100 and a melt-glue component 200, a glue-spreading component 300 and a hot pressing component 400 installed on the frame 100. The melt-glue component 200 is in contact with the surface film 620, and is used to melt the colloid 630 between the surface film 620 and the mineral wool board 610; the glue-spreading component 300 is located on the downstream side of the melt-glue component 200, and is used to spread the melted colloid 630 evenly between the mineral wool board 610 and the surface film 620; the hot pressing component 400 is located on the downstream side of the glue-spreading component 300, and the hot pressing component 400 glues the mineral wool board 610 to the surface film 620 by squeezing the colloid 630.

[0038] In some embodiments provided in the present application, the melt assembly 200 includes a first hot roller 210, and the first hot roller 210 has a first heating chamber 211, and the heat transfer oil can flow from the inlet of the first heating chamber 211 to the outlet of the first heating chamber 211. Figure 2As shown, the first hot roller 210 includes an inner roller 212, a central rotating shaft 214, a first hollow rod 215, a second hollow rod 216, an outer roller 217 and a fixing ring 218. The outer wall of the inner roller 212 has a spiral groove 213. The spiral groove 213 spirals from the left end of the inner roller 212 to the right end of the inner roller 212. The bottom of the spiral groove 213 near the left end is provided with an oil inlet 2131. The bottom of the spiral groove 213 near the right end is provided with an oil inlet 2132. The central rotating shaft 214 is arranged in the inner roller 212 along the axial direction of the inner roller 212, and the two ends of the central rotating shaft 214 have hollow shaft sections, which are respectively an oil inlet chamber 2141 and an oil outlet chamber 2142. A first hollow rod 215 is welded between the oil inlet chamber 2141 and the oil inlet port 2131, so that the oil inlet chamber 2141 and the oil inlet port 2131 are connected through the rod cavity of the first hollow rod 215, and the oil outlet chamber 2142 is connected to the inner roller 212. A second hollow rod 216 is welded between 142 and the oil outlet 2132, so that the oil outlet cavity 2142 and the oil outlet 2132 are connected through the rod cavity of the second hollow rod 216; the inner wall of the outer roller 217 is matched with the notch gap of the spiral groove 213, so that the inner wall of the outer roller 217 and the inner wall of the spiral groove 213 jointly form a spiral first heating cavity 211, so that the heat transfer oil enters the first heating cavity 211 from the oil inlet 2131 through the oil inlet cavity 2141 and the first hollow rod 215, and the heat transfer oil flows along the first heating cavity 211 in a spiral manner, and directly heats the outer roller 217, thereby improving the heating efficiency, and because the heat transfer oil continuously flows in the first heating cavity 211, it can avoid the phenomenon of local excessive temperature or excessive temperature difference, so that the colloid 630 is heated more evenly, effectively improving the coating quality, and reducing the generation of bubbles and wrinkles. The fixing ring 218 is arranged at the same end of the outer roller 217 and the inner roller 212. For example, a fixing ring 218 is coaxially arranged at the left and right ends of the outer roller 217 and the inner roller 212, respectively. The inner edge of the fixing ring 218 is bolted to the end of the inner roller 212, and the outer edge of the fixing ring 218 is bolted to the end of the outer roller 217, so that the inner roller 212 and the outer roller 217 are fixedly connected to ensure that the inner roller 212 and the outer roller 217 rotate synchronously and prevent the inner roller 212 and the outer roller 217 from rotating relative to each other. In some specific embodiments, sealing gaskets are also arranged between the fixing ring 218 and the inner roller 212 and the outer roller 217, respectively, for sealing the first heating chamber 211 to prevent the heat transfer oil in the first heating chamber 211 from flowing out.The two ends of the central rotating shaft 214 are respectively provided with an oil inlet pipeline 220 and an oil outlet pipeline 230. The outer wall of the oil inlet pipeline 220 and the inner wall of the oil inlet chamber 2141 are connected by a rotating dynamic seal. Specifically, the outer wall of the oil inlet pipeline 220 and the inner wall of the oil inlet chamber 2141 are connected by a bearing. A sealing ring is respectively provided on both sides of the bearing. The outer wall of the oil inlet pipeline 220 is provided with an annular groove, and the sealing ring is sleeved in the annular groove. The outer side of the sealing ring abuts against the inner wall of the oil inlet chamber 2141 to achieve sealing. The number of sealing rings can be A plurality of sealing rings are provided to improve the sealing effect; the outer wall of the oil outlet pipeline 230 and the inner wall of the oil outlet cavity 2142 are connected by a rotating dynamic seal. Specifically, the outer wall of the oil outlet pipeline 230 and the inner wall of the oil outlet cavity 2142 are connected by a bearing, and sealing rings are provided on both sides of the bearing, wherein the outer wall of the oil outlet pipeline 230 is provided with an annular groove, the sealing ring is sleeved in the annular groove, and the outer side of the sealing ring abuts against the inner wall of the oil outlet cavity 2142 to achieve sealing. The number of sealing rings can be set to improve the sealing effect. In some specific embodiments, a plurality of grooves are provided on the surface of the outer roller 217, and a temperature sensor is provided in each groove. For example, the temperature sensor is glued or clamped at the bottom of the groove. The temperature of different positions of the outer roller 217 can be obtained through the temperature sensor to avoid excessive local temperature or excessive temperature difference.

[0039] Reference Figure 1 As shown, in some embodiments provided by the present application, the glue-spreading assembly 300 includes a vibration plate 310, which is in contact with the surface film 620, and can vibrate in a direction perpendicular to the surface film 620. By providing the vibration plate 310, the surface film 620, the colloid 630 and the mineral wool board 610 are subjected to high-frequency vibration by the vibration plate 310, so that the kinetic energy of the melted colloid can be increased, so that the melted colloid 630 flows around, especially the thicker colloid is more likely to flow to the surrounding area, so that the thicker colloid can flow to the thinner colloid or the position without colloid, which is conducive to making the thickness of the colloid 630 between the surface film 620 and the mineral wool board 610 basically consistent, preventing bubbles from appearing after the surface film 620 and the mineral wool board 610 at the position without glue layer are coated, and preventing the edge of the mineral wool board 610 from warping after coating, so that the coating is more firm.

[0040] Reference Figure 3As shown, in some specific embodiments, the glue-leveling assembly 300 also includes a motor, a cam 330 and a connecting rod 340. The cam 330 has a first axle 331 and a second axle 332. The output shaft of the motor is connected to the first axle 331 of the cam 330 through a coupling. The lower end of the connecting rod 340 is rotatably connected to the second axle 332 through a bearing. The upper end of the connecting rod 340 is rotatably connected to the vibration plate 310 through a pin shaft. In this way, when the motor rotates, it can drive the cam 330 to rotate and then drive the lower end of the connecting rod 340 to rotate, and then the upper end of the connecting rod 340 drives the vibration plate 310 to vibrate up and down. By adjusting the speed of the motor, the vibration frequency of the vibration plate 310 can be adjusted to make the vibration plate 310 vibrate at a high frequency. In some specific embodiments, the glue-spreading assembly 300 also includes a spring 350, the upper end of the spring 350 is fixed on the frame 100, and the lower end of the spring 350 is connected to the vibration plate 310. By providing the spring 350, the up and down vibration of the vibration plate 310 can be buffered, so that the amplitude of the vibration plate 310 is maintained within an appropriate range, preventing the vibration amplitude from being too large and damaging the surface film 620.

[0041] Reference Figure 1 As shown, in some embodiments provided in the present application, the glue spreading assembly 300 further includes a limiting roller 360, which is disposed on a side of the mineral wool board 610 away from the surface film 620 and is disposed opposite to the vibration plate 310. The limiting roller 360 can prevent the mineral wool board 610 from shifting due to the vibration of the vibration plate 310, and also plays a role in transmitting the mineral wool board 610.

[0042] Reference Figure 1 As shown, in some embodiments provided in the present application, the hot pressing assembly 400 includes a second hot roller 410 and a pressure roller 420. The second hot roller 410 has a second heating chamber 411. The heat transfer oil can flow from the inlet of the second heating chamber 411 to the outlet of the second heating chamber 411. Specifically, the structure of the second hot roller 410 is the same as that of the first hot roller 210 described above, and will not be repeated here. The pressure roller 420 is arranged on the side of the mineral wool board 610 away from the surface film 620, that is, the pressure roller 420 is arranged on the lower side of the mineral wool board 610, and is arranged opposite to the second hot roller 410. After the colloid 630 is evenly spread, the pressure roller 420 and the second hot roller 410 jointly squeeze the mineral wool board 610, the surface film 620 and the evenly spread colloid 630, so that the mineral wool board 610 and the surface film 620 are coated.

[0043] In some specific embodiments, the device also includes a power assembly, which is respectively connected to the roller shafts of the central rotating shaft 214, the roller shaft of the pressure roller 420, and the roller shaft of the limiting roller 360, and the power assembly is used to drive the first hot roller 210, the second hot roller 410, the pressure roller 420 and the limiting roller 360 to rotate around their own axes respectively; for example, the power assembly includes a motor, and the power of the motor is transmitted to the corresponding roller shafts through a belt drive, a chain drive or a gear drive. By designing the transmission ratio of the transmission wheel, the roller surfaces of the first hot roller 210, the second hot roller 410, the pressure roller 420 and the limiting roller 360 all have equal linear speeds.

[0044] Considering the efficiency of heat conduction, the roller surfaces of the first hot roller 210, the second hot roller 410, the pressure roller 420, and the limiting roller 360 are all metal smooth surfaces. However, since the friction of the metal smooth surface is relatively small and the surface film 620 is relatively smooth, slipping may occur during the transmission process, resulting in a long heating time for the local adhesive layer and excessive heating, which affects the lamination effect. Therefore, in some embodiments provided in the present application, the device also includes an auxiliary conveying roller 500, and the roller surface of the auxiliary conveying roller 500 has a damping layer 510, and the damping layer 510 transmits the surface film 620 by contacting with the surface film 620. For example, the damping layer 510 is a frosted layer. By providing the damping layer 510, the friction between the roller surface of the auxiliary conveying roller 500 and the surface film 620 can be increased, thereby preventing slipping and ensuring that the surface film 620 passes through the first hot roller 210, the second hot roller 410, the pressure roller 420 and the limiting roller 360 at a uniform speed, thereby ensuring that each position of the surface film 620 is heated for the same length of time, thereby ensuring the laminating effect. In addition, the roller shaft of the auxiliary conveying roller is also connected to the power assembly in a transmission manner, and the roller surface of the auxiliary conveying roller maintains a linear speed equal to that of the first hot roller 210, the second hot roller 410, the pressure roller 420 and the limiting roller 360.

[0045] Since the thickness of the surface film 620 is very thin, the surface film 620 is easy to adhere to the roller surface during the transmission process. In some embodiments of the present application, the roller surfaces of the first hot roller 210, the second hot roller 410, the pressure roller 420, the limiting roller 360 and the auxiliary conveying roller 500 are respectively provided with an anti-stick coating. For example, a Teflon coating is applied to the roller surface. Due to the characteristics of Teflon, the roller treated with the Teflon coating has excellent high temperature resistance and anti-stickiness. In this way, the surface film 620 basically does not adhere to the roller surface during the transmission process, and due to the anti-stickiness of the roller surface, it is also easier to clean later.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A mineral wool board coating device, characterized in that: For gluing mineral wool panels to surface membranes, including: frame; A melt assembly, arranged on the frame and in contact with the surface film, for melting the colloid between the surface film and the mineral wool board; A glue spreading component is arranged on the frame and located at the downstream side of the glue melting component, and is used to spread the melted colloid evenly between the mineral wool board and the surface film; A hot pressing component is arranged on the frame and is located at the downstream side of the glue-spreading component. The hot pressing component glues the mineral wool board and the surface film together by squeezing the colloid.

2. The mineral wool board coating device according to claim 1, characterized in that: The melt assembly comprises: The first heating roller has a first heating chamber, and heat transfer oil can flow from the inlet of the first heating chamber to the outlet of the first heating chamber.

3. The mineral wool board coating device according to claim 2, characterized in that: The hot pressing assembly comprises: A second heating roller has a second heating chamber, and heat transfer oil can flow from an inlet of the second heating chamber to an outlet of the second heating chamber; A pressure roller is arranged on a side of the mineral wool board away from the surface film, is arranged opposite to the second hot roller, and is used for pressing the mineral wool board together with the second hot roller.

4. The mineral wool board coating device according to claim 3, characterized in that: The first hot roller and the second hot roller respectively include: The inner roller has a spiral groove on its outer side wall, an oil inlet is provided at the bottom of the spiral groove near one end, and an oil outlet is provided at the bottom of the spiral groove near the other end; A central rotating shaft is arranged along the axial direction of the inner roller, and two ends of the central rotating shaft respectively have an oil inlet cavity and an oil outlet cavity, the oil inlet cavity is connected to the oil inlet through a first hollow rod, and the oil outlet cavity is connected to the oil outlet through a second hollow rod; The inner side wall of the outer roller is in clearance with the notch of the spiral groove, and the inner side wall of the outer roller and the inner wall of the spiral groove together form the first heating chamber / the second heating chamber; A fixing ring is arranged at the same end of the outer roller and the inner roller, and is used to connect the inner roller and the outer roller.

5. The mineral wool board coating device according to claim 4, characterized in that: An oil inlet pipe and an oil outlet pipe are respectively arranged at both ends of the central rotating shaft. The outer wall of the oil inlet pipe is connected to the inner wall of the oil inlet cavity by a rotary dynamic seal, and the outer wall of the oil outlet pipe is connected to the inner wall of the oil outlet cavity by a rotary dynamic seal.

6. The mineral wool board coating device according to claim 4, characterized in that: The outer roller is provided with a temperature sensor.

7. The mineral wool board coating device according to claim 4, characterized in that: The glue spreading assembly includes a vibration plate, the vibration plate is in contact with the surface film, and the vibration plate can vibrate in a direction perpendicular to the surface film.

8. The mineral wool board coating device according to claim 7, characterized in that: The glue spreading assembly further comprises a limiting roller, which is arranged on a side of the mineral wool board away from the surface film and is arranged opposite to the vibration plate.

9. The mineral wool board coating device according to claim 8, characterized in that: The device further includes an auxiliary conveying roller having a roller surface with a damping layer, and the damping layer conveys the surface film by contacting with the surface film.

10. The mineral wool board coating device according to claim 9, characterized in that: It also includes a power assembly, which is respectively connected to the central shaft, the roller shaft of the pressure roller, the roller shaft of the limit roller, and the roller shaft of the auxiliary conveying roller, and is used to drive the first hot roller, the second hot roller, the pressure roller, the limit roller, and the auxiliary conveying roller to rotate around their own axes; And / or, the roller surfaces of the first heating roller, the second heating roller, the pressure roller, the limiting roller and the auxiliary conveying roller are respectively provided with anti-sticking coatings.

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