Colored stone insulation board production line and production method thereof

Abstract

The invention belongs to the technical field of heat preservation building materials, and particularly discloses a color stone heat preservation plate production line and a production method.The color stone heat preservation plate production line comprises a first conveyor, a primer spraying chamber, a color sand spraying chamber, a color sand leveling chamber and a sealing glue spraying chamber, and a first raw material tank is arranged on one side of the primer spraying chamber; a colored sand spray head is mounted in the colored sand spraying chamber through an adjusting assembly; the adjusting assembly comprises a transverse moving support and a transverse moving driving device, the transverse moving support is slidably connected with an overturning support, the overturning support is rotationally connected with a rotating base, the overturning support is provided with an angle adjusting driving device used for driving the rotating base to rotate, and the color sand spray head is installed on the rotating base so that the color sand spray head can transversely move and overturn at multiple angles. Therefore, heat preservation base plates of different sizes and contours can be accurately adapted, the coating uniformity is ensured, efficient connection is conducted through a color stone heat preservation plate production method, the spraying uniformity and adaptability of a production line are overall improved, and the production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of thermal insulation building materials technology, specifically relating to a colored stone thermal insulation board production line and its production method. Background Technology

[0002] Colored stone insulation boards, as a building material that combines insulation and decoration functions, are widely used in the fields of building energy conservation and beautification, and their market demand continues to grow. Their production typically involves multiple processes, including substrate conveying, multi-layer material spraying, and segmented drying and curing. Existing production lines often suffer from problems such as poor coordination between functional sections, insufficient automation and intelligence, and poor adaptability to spraying different sizes or contours of insulation substrates. This results in limited production efficiency, difficulty in ensuring coating uniformity and material utilization, and requires significant time for manual adjustments and calibrations when changing product specifications. Summary of the Invention

[0003] To address the problems of uneven coating and poor adaptability in existing traditional colored stone insulation board production lines, this invention proposes a colored stone insulation board production line and its production method. The invention provides the following technical solution: A colored stone insulation board production line includes, from front to back, a first conveyor for conveying the insulation substrate, a primer spraying chamber for spraying primer, a colored sand spraying chamber for spraying colored sand, a colored sand leveling chamber for preliminary shaping, and a sealing spraying chamber for spraying the top layer of topcoat. A first raw material tank is provided on one side of the primer spraying chamber. A colored sand nozzle is installed in the colored sand spraying chamber through an adjusting component. The adjusting component includes a transverse support and a transverse drive device. A flipping support is slidably connected to the transverse support, and a rotating seat is rotatably connected to the flipping support. An angle adjusting drive device for driving the rotating seat to rotate is installed on the flipping support, and the colored sand nozzle is installed on the rotating seat.

[0004] Preferably, the first conveyor includes a first conveyor roller group, on which two first conveyor belts are mounted, and the two conveyor belts are arranged parallel to each other with a left-right interval.

[0005] Preferably, the first conveyor belt includes a horizontal advancing section and a folding section that are connected to each other. The folding section is disposed on the lower side of the horizontal advancing section. The horizontal advancing section protrudes downward through the first conveying roller group to form a first triangular portion. A cleaning tank for storing cleaning fluid is provided on the lower side of the first triangular portion.

[0006] Preferably, cleaning rollers are provided on the left and right sides of the first triangular portion, and a first brush for wiping the first conveyor belt is installed on the cleaning rollers.

[0007] Preferably, the colored sand leveling chamber includes a chamber body, an electric heater and an auxiliary fan for smoothing by airflow are installed inside the chamber body, a dehumidification hole is provided on the chamber body, a dehumidifier is installed on the upper side of the chamber body, and the dehumidifier is connected to the dehumidification hole.

[0008] Preferably, a shaping and drying chamber is provided on the rear side of the sealing spraying chamber, a blower is installed in the shaping and drying chamber, an air guide hood is installed at the air outlet of the blower, and the lower opening of the air guide hood is rectangular and deflected around a vertical axis.

[0009] Preferably, a vision system is installed in the colored sand spraying chamber, and the vision system is connected to a spraying fine-tuning controller. The spraying fine-tuning controller is electrically connected to the lateral movement drive device, the angle adjustment drive device, and the colored sand nozzle.

[0010] Preferably, multiple colored sand nozzles are arranged at intervals along the left-right direction, and each colored sand nozzle is independently controlled and connected to the spray fine-tuning controller.

[0011] A method for producing colored stone insulation boards, based on a colored stone insulation board production line, includes the following steps: S1. Conveying: The insulation substrate is conveyed via the first conveyor; S2, Primer: When the thermal insulation substrate enters the primer spraying chamber, primer is sprayed onto its surface by the primer nozzle; S3, Sandblasting: After the base coat is applied, the thermal insulation substrate enters the colored sand spraying chamber. The lateral position and spraying angle of the colored sand nozzle are adjusted by the adjustment component, and colored sand is sprayed onto its surface. S4. Leveling: After the thermal insulation substrate is sprayed with colored sand, it enters the colored sand leveling chamber to level the colored sand layer and make its surface uniform and flat. S5, Top Coating: The top layer of top coating is applied by spraying through a sealing spray booth; S6, Finalization.

[0012] Preferably, in step S3, the spray fine-tuning controller independently controls the opening and closing, lateral movement, spraying angle and spraying parameters of each colored sand nozzle according to the position and contour information of the thermal insulation substrate obtained by the second vision system, so as to perform zoned spraying on the surface of the thermal insulation substrate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention seamlessly integrates processes such as conveying, primer coating, sandblasting, leveling, topcoat coating, and final drying through modular layout and intelligent control. Its functional integrity and stability can be further enhanced through expansion modules such as pretreatment, independent material supply, and cooling collection. Its adjustable components effectively improve spray uniformity and adaptability. 2. By setting a cleaning mechanism consisting of a cleaning tank and a rotating brush roller in the return path of the first conveyor belt, continuous self-cleaning is achieved by the bending of the belt itself and mechanical scraping, effectively preventing cross-contamination caused by residual materials; 3. By setting up an intelligent closed-loop control system based on a vision system, the spraying parameters and nozzle actions are dynamically adjusted according to the real-time captured information of the thermal insulation substrate, thereby achieving intelligent and high-precision spraying operations and significantly improving material utilization. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall side view structure of the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a three-dimensional structural schematic diagram of the blower of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of the adjustment component of the present invention; Figure 6 yes Figure 5 A magnified view of a section at point B in the middle; In the attached diagram: 1. First conveyor; 11. First conveyor roller group; 12. First conveyor belt; 121. Horizontal advance section; 122. Turnback section; 1221. First triangular section; 13. Cleaning roller; 131. First brush; 14. Cleaning tank; 2. Primer spraying chamber; 21. First raw material tank; 3. Auxiliary drying chamber; 4. Colored sand spraying chamber; 41. Adjustment component; 411. Transverse support; 412. Transverse drive device; 413. Tilting support; 414. Rotating seat; 415. Angle adjustment drive device; 416. Linear drive device; 417. Mounting seat; 42. Colored sand nozzle; 43. Roller conveyor; 44. Lifting and feeding machine; 5. Colored sand leveling chamber; 51. Silo; 52. Dehumidifier; 6. Sealing spraying chamber; 7. Shaping and drying chamber; 71. Blower; 72. Air guide hood; 8. Industrial camera. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the invention.

[0016] like Figure 1-6As shown, a colored stone insulation board production line includes, from front to back, a first conveyor 1 for conveying the insulation substrate, a primer spraying chamber 2 for spraying primer, a colored sand spraying chamber 4 for spraying colored sand, a colored sand leveling chamber 5 for leveling colored sand, and a sealing spraying chamber 6 for spraying the top layer of adhesive. Each functional section is rigidly connected by a steel structure frame and kept horizontally aligned. The transmission speed of each section is synchronously controlled by a central programmable logic controller (PLC) to achieve continuous automated assembly line operation and effectively improve production efficiency.

[0017] A first raw material tank 21 is provided on one side of the primer spraying chamber 2. In this embodiment, the first raw material tank 21 is a 304 stainless steel pressure vessel with a low-speed stirrer. It is connected to the primer nozzle through a corrosion-resistant diaphragm metering pump and a polyurethane supply pipeline, so that the raw material supply and spraying process are closely linked, ensuring production continuity. The primer spraying chamber 2 is equipped with a primer nozzle, which is a fan-shaped air atomizing nozzle, fixedly installed on an aluminum alloy profile bracket on the top of the spraying chamber, and its spraying direction is perpendicular to the conveying plane. The sealant spraying chamber 6 is set up similarly to the primer spraying chamber 2.

[0018] A lifting and feeding machine 44 is installed on the outside of the colored sand spraying chamber 4. A hopper 441 is installed at the left feed inlet of the lifting and feeding machine 44. The lifting and feeding machine 44 is a bucket elevator for feeding colored sand nozzles. Colored sand nozzles 42 are installed through an adjusting component 41. The adjusting component 41 includes a transverse support 411 and a transverse drive device 412. The transverse support 411 consists of two parallel precision linear guides fixed to the support beams on both sides of the colored sand spraying chamber 4. In this embodiment, the transverse drive device 412 is a precision lead screw slide driven by a servo motor. The servo motor drives the lead screw to rotate through a coupling, thereby driving the moving part connected to the lead screw nut to move back and forth laterally. A flipping support 413 is slidably connected to the transverse support 411 through a slider. The flipping support 413 is a lightweight alloy casting, and a rotating seat 414 is rotatably connected to it through a pair of angular contact ball bearings. The flipping bracket 413 is equipped with an angle adjustment drive device 415 for driving the rotating seat 414 to rotate. In this embodiment, the device is a servo motor, and its output shaft is fastened to the rotating seat 414. The colored sand nozzle 42 is an adjustable nozzle, which is installed on the rotating seat 414 by a quick-release clamp, giving the colored sand nozzle 42 a combined adjustment capability of lateral movement and multi-angle flipping, thereby accurately adapting to insulation substrates of different sizes and contours and ensuring coating uniformity. Furthermore, a linear drive device 416 is installed on the rotating seat 414. The linear drive device 416 is a cylinder or a linear motor. A mounting base 417 is slidably connected to the rotating seat 414, and the colored sand nozzle 42 is installed on the mounting base 417, allowing adjustment of the distance between the colored sand nozzle 42 and the workpiece to be processed below.

[0019] Specifically, the first conveyor 1 includes a first conveyor roller group 11, which is composed of multiple galvanized steel rollers with neoprene rubber-coated surfaces arranged at equal intervals and driven by a cycloidal pinwheel reducer motor. Two first conveyor belts 12 are fitted onto the first conveyor roller group 11, arranged parallel to each other with a left-right gap. In this embodiment, the first conveyor belts 12 are rubber anti-slip conveyor belts with a width of 30mm, providing stable and efficient support and transport for both ends of the insulation substrate, reducing the risk of sagging and deformation in the middle of the insulation substrate, and are particularly suitable for transporting large-sized, thin substrates.

[0020] Specifically, the first conveyor belt 12 includes a horizontal entry section 121 and a folding-back section 122 connected to each other. The folding-back section 122 is located on the lower side of the horizontal entry section 121. The horizontal entry section 121 forms a first triangular section 1221 by two additional deflecting rollers protruding downwards. A cleaning tank 14 for storing cleaning fluid is provided on the lower side of the first triangular section 1221, and a drain ball valve is provided. An immersion washing area is naturally formed on the return path of the conveyor belt, and continuous self-cleaning is achieved by utilizing the bending structure of the first conveyor belt 12 itself.

[0021] Specifically, on the left and right sides of the first triangular portion 1221, on the mounting base 417 at the edge of the cleaning tank 14, a cleaning roller 13 is provided by a stainless steel bearing. The cleaning roller 13 is tightly wound and equipped with a first brush 131 for wiping the first conveyor belt 12. In this embodiment, the bristles of the first brush 131 are made of nylon 66. The cleaning roller 13 is driven by a miniature AC gear motor through a synchronous belt. Its rotation direction is opposite to the return direction of the first conveyor belt 12. By rotating the brush, the working surfaces on both sides of the belt are mechanically scraped and cleaned. The dual cleaning effect significantly removes residual materials, prevents cross-contamination, and maintains the first conveyor belt 12 in good working condition.

[0022] Specifically, the colored sand leveling chamber 5 includes a chamber body 51, which is constructed of color steel plate sandwiched with polyurethane insulation board. The chamber body 51 is equipped with an electric heater, a vibratory leveler, and an auxiliary fan. The vibratory leveler transmits vibration to the insulation substrate and the colored sand on it through a conveying roller group, achieving uniform dispersion. The auxiliary fan assists in leveling through airflow, ensuring a uniform distribution and smooth surface of the sprayed colored sand layer, providing a good base for subsequent topcoat processes. In this embodiment, the electric heater consists of multiple sets of stainless steel finned heating tubes with an anti-stick coating, evenly distributed within the air duct at the top of the chamber body 51. Multiple dehumidification holes are provided on the side wall of the chamber body 51, and a rotary dehumidifier 52 is installed on the upper side of the chamber body 51. The dehumidifier 52 is connected to the dehumidification holes through a polyvinyl chloride flexible air duct, actively expelling moisture while providing stable hot air for initial curing, preventing moisture accumulation inside the chamber, creating a rapid and uniform drying environment for the coating, and improving the initial setting quality.

[0023] Specifically, a first vision system is installed in the primer spraying chamber 2, a second vision system is installed in the colored sand spraying chamber 4, and a third vision system is installed in the sealant spraying chamber 6. Each vision system includes a 2-megapixel industrial camera 8 and a matching strip LED light source. The first, second, and third vision systems are connected to a spraying fine-tuning controller via a gigabit Ethernet cable. The spraying fine-tuning controller is an embedded industrial computer that pre-stores spraying parameter models for various insulation substrate specifications and can automatically call up the corresponding model parameters based on the insulation substrate type code or size information fed back by the vision system. It is mainly used in the colored sand spraying chamber 4 and can identify the color of colored sand. The spraying fine-tuning controller is electrically connected to the two-position three-way solenoid valve controlling the base adhesive nozzle, the servo driver of the transverse drive device 412, the driver of the angle adjustment drive device 415 (hollow rotating platform), and the electric proportional valve controlling the flow of the colored sand nozzle 42 through digital and analog output modules. It constitutes an intelligent closed-loop control system based on real-time image feedback, which can automatically identify the position and status of the thermal insulation substrate and dynamically adjust all spraying parameters and nozzle actions, greatly improving spraying accuracy and material utilization.

[0024] Specifically, multiple colored sand nozzles 42 are arranged at intervals along the left and right direction, and in this embodiment there are 3. Each colored sand nozzle 42 is equipped with an independent adjustment component 41 unit and a material supply branch. Each colored sand nozzle 42 is independently controlled and connected to the spray fine adjustment controller, supporting multi-nozzle collaborative or independent operation modes. It can achieve wide-area rapid coverage, and can also perform fine spot spraying on the edge of the insulation substrate or complex areas, significantly enhancing production flexibility and process adaptability.

[0025] Specifically, roller conveyor devices 43 are installed in the auxiliary drying chamber 3, the colored sand leveling chamber 5, and the sealant spraying chamber 6; the sealant spraying chamber 6 is equipped with a second conveyor device similar to the first conveyor 1, and also has a structure similar to the first triangular part 1221; the bottom of the base coat spraying chamber 2 and the sealant spraying chamber 6 are equipped with cleaning tanks 14 for deep cleaning; and the colored sand leveling chamber 5 is equipped with a V-shaped stainless steel recovery tank, which can be used to recover a small amount of colored sand that may fall off during the leveling process.

[0026] In this embodiment, after the thermal insulation substrate is treated in the sealing spraying chamber 6, it can be transferred to the drying room for batch drying.

[0027] Example 2 Based on Example 1, an auxiliary drying chamber 3 for adjusting the primer is provided between the primer spraying chamber 2 and the colored sand spraying chamber 4 to adjust the viscosity of the primer.

[0028] A shaping and drying chamber 7 is provided behind the sealing spraying chamber 6. Specifically, a blower 71 is installed in the shaping and drying chamber 7, which is a high-pressure centrifugal blower in this embodiment. An air guide shroud 72 is installed at the air outlet of the blower 71, and a ceramic PTC heating element is integrated inside the air guide shroud 72. The lower opening of the air guide shroud 72 is rectangular and can be further deflected around a vertical axis by a worm gear mechanism driven by a stepper motor. The deflection angle is ±45° in this embodiment, which can generate a directional and oscillating wide airflow to achieve dynamic sweeping drying of the surface of the heat insulation substrate, eliminate local overheating or drying dead zones, and ensure a consistent overall curing effect of the coating.

[0029] Example 3 Based on Embodiment 1, as a preferred extended implementation, a substrate pretreatment station can be provided at the input end of the first conveyor 1, i.e., before the primer spraying chamber 2. This pretreatment station may include a cleaning device and / or a preheating device. The cleaning device may be a pair of vertically arranged roller brushes or a high-pressure ion air cleaning device used to remove dust and oil from the surface of the insulation substrate; the preheating device may be an infrared heating plate or a hot air box used to moderately heat the substrate. Adding this station can improve the surface cleanliness and temperature of the substrate from the source, significantly enhancing the adhesion and wettability of the primer on the substrate, providing a preliminary guarantee for solving quality problems such as coating blistering and peeling.

[0030] Example 4 Based on Embodiment 1, 2, or 3, as a preferred extended embodiment, a second raw material tank is further provided on one side of the colored sand spraying chamber 4. The second raw material tank is connected to the colored sand spray head 42 via a supply pipeline. The second raw material tank can also be equipped with a stirring and temperature control system. This arrangement provides the topcoat process with an independent and dedicated raw material system, effectively avoiding confusion or cross-contamination with the primer material. It is particularly suitable for situations where the two substrates have different properties or require precise control of the mixing ratio. It also facilitates independent inventory management and process parameter setting for the two raw materials.

[0031] Example 5 Based on any of embodiments 1 to 4, as a preferred extended implementation, a cooling section and a finished product collection section can be sequentially arranged at the output end of the colored sand leveling chamber 5. The cooling section is equipped with several axial flow cooling fans for uniformly cooling the final-shaped colored stone insulation boards. The finished product collection section may include one or more of a flipping machine, a stacker, or a second conveyor. Adding cooling and collection processes creates a complete closed loop from raw materials to finished products in the production line. Systematic cooling prevents internal stress deformation of the product due to sudden temperature changes and ensures that its temperature quickly reaches the requirements for safe packaging; automated collection devices significantly reduce the labor intensity of manual handling and improve the automation level and output efficiency of the entire line.

[0032] Example 6 Based on any of embodiments 1 to 5, as a more preferred implementation, the transverse drive device 412 can be a precision lead screw slide driven by a servo motor, and the angle adjustment drive device 415 can be a hollow rotary platform or a servo swing table. The spray fine-tuning controller has pre-stored spray parameter models for various insulation substrate specifications and can automatically call the corresponding model parameters based on the insulation substrate type code or size information fed back by the vision system, driving the adjustment component 41 and the spray head to perform predetermined actions. The use of high-precision transmission components ensures the accuracy and repeatability of the positioning and angle adjustment of the colored sand spray head 42. The controller has a parameterized model calling function, enabling "one-click switching" when producing products of different specifications, greatly shortening the machine setup time when changing products, and improving the production response speed and flexibility of small-batch, multi-variety orders.

[0033] A method for producing colored stone insulation boards, using the colored stone insulation board production line described in any one of Examples 1 to 6 above, includes the following steps: S1. Conveying: The insulation substrate is conveyed by the first conveyor 1 to provide a continuous and stable substrate flow for subsequent processes; S2, Primer: When the thermal insulation substrate enters the primer spraying chamber 2, primer is sprayed onto its surface by the primer nozzle to form a firmly adhered base coating. S21. Initial shaping: The thermal insulation substrate coated with primer enters the auxiliary drying chamber 3 for initial shaping, so that the base coating can be quickly cured to the strength to withstand the next process. S3, Sandblasting: After adjusting the viscosity of the base adhesive, the thermal insulation substrate enters the colored sand spraying chamber 4. The lateral position and spraying angle of the colored sand nozzle 42 are adjusted by adjusting component 41, and colored sand is sprayed onto its surface to precisely apply decorative or functional surface layer on the cured base coating. S4. Preliminary shaping: Leveling: The thermal insulation substrate after spraying colored sand enters the colored sand leveling chamber 5, and the colored sand layer is leveled by vibration or scraping to make its surface uniform and flat. S5, Top Coating: Apply the top layer of top coating through the sealing spray booth 6; S6. Final shaping: The insulation substrate coated with colored sand enters the shaping and drying chamber 7. It is then shaped by the uniform airflow from the electric heater, blower 71, and air guide 72. Alternatively, it can be dried in the drying room to obtain the colored stone insulation board. This ensures that the overall performance of the coating is stable and meets the predetermined technical specifications.

[0034] Specifically, in step S3, the spray fine-tuning controller independently controls the opening and closing, lateral movement, spraying angle, and spraying parameters of each colored sand nozzle 42 based on the position and contour information of the insulation substrate obtained by the second vision system and the color information of the colored sand obtained by the industrial camera 8, and performs zoned spraying on the surface of the insulation substrate. This method can intelligently respond to the individual differences of each insulation substrate on the production line, realize highly customized spraying operations, and maximize the saving of topcoat material while ensuring the best coating quality.

[0035] Specific work process: The insulation substrate is first smoothly fed into the production line by the first conveyor 1 with a dual conveyor belt structure. During the return trip, the first conveyor belt 12 passes through an immersion tank and brush rollers for automatic cleaning. After entering the primer spraying chamber 2, the first vision system positions it, and the primer nozzle evenly sprays the base material onto its surface. The insulation substrate then enters the auxiliary drying chamber 3, where the primer viscosity is adjusted under controlled hot air and dehumidification. Next, the insulation substrate enters the colored sand spraying chamber 4, where the second vision system precisely captures its position and outline, transmitting the data to the spraying fine-tuning controller. The controller instructs the adjustment component 41 to drive one or more colored sand nozzles 42 to move laterally and rotate at different angles, precisely applying the topcoat to the insulation substrate. Then, the insulation substrate undergoes vibration or scraping leveling treatment in the colored sand leveling chamber 5 to ensure a smooth and uniform colored sand layer surface. Afterward, it undergoes topcoat application (surface adhesive application) in the sealing spraying chamber 6, and finally, it undergoes final shaping in the shaping drying chamber 7 or a drying room. After being cooled in the cooling section, the formed insulation substrate is automatically stacked or output by the collection section to form the finished colored stone insulation board. Throughout the entire process, the intelligent control system is used to achieve fully automated and intelligent production from substrate input to finished product output.

[0036] This invention seamlessly integrates processes such as conveying, primer coating, topcoat coating, and final drying through modular layout and intelligent control. Its functional integrity and stability can be further enhanced through expansion modules such as pretreatment, independent material supply, and cooling collection. The adjustment component 41 effectively improves spray uniformity and adaptability. The overall solution significantly improves the production efficiency, product quality consistency, and rapid response capability to different production needs for colored stone insulation boards.

Claims

1. A production line for colored stone insulation boards, characterized in that, From front to back, the system includes a first conveyor (1) for conveying the insulation substrate, a base adhesive spraying chamber (2) for spraying the base adhesive, a colored sand spraying chamber (4) for spraying colored sand, a colored sand leveling chamber (5) for leveling the colored sand, and a sealing spraying chamber (6) for spraying the top layer adhesive. A first raw material tank (21) is provided on one side of the base adhesive spraying chamber (2). A colored sand nozzle (42) is installed in the colored sand spraying chamber (4) through an adjustment assembly (41). The adjustment assembly (41) includes a transverse support (411) and a transverse drive device (412). A flip support (413) is slidably connected to the transverse support (411). A rotating seat (414) is rotatably connected to the flip support (413). An angle adjustment drive device (415) for driving the rotating seat (414) to rotate is installed on the flip support (413). The colored sand nozzle (42) is installed on the rotating seat (414).

2. The colored stone insulation board production line according to claim 1, characterized in that, The first conveyor (1) includes a first conveyor roller group (11), on which two first conveyor belts (12) are mounted, and the two conveyor belts are arranged parallel to each other with a left-right interval.

3. The colored stone insulation board production line according to claim 2, characterized in that, The first conveyor belt (12) includes a horizontal entry section (121) and a folding section (122) connected to each other. The folding section (122) is located on the lower side of the horizontal entry section (121). The horizontal entry section (121) protrudes downward through the first conveyor roller group (11) to form a first triangular portion (1221). A cleaning tank (14) for storing cleaning fluid is provided on the lower side of the first triangular portion (1221).

4. The colored stone insulation board production line according to claim 3, characterized in that, Cleaning rollers (13) are provided on the left and right sides of the first triangular part (1221), and a first brush (131) for wiping the first conveyor belt (12) is installed on the cleaning rollers (13).

5. The colored stone insulation board production line according to claim 1, characterized in that, The colored sand leveling chamber (5) includes a chamber body (51), which is equipped with an electric heater and an auxiliary fan for smoothing by airflow. The chamber body (51) is provided with a dehumidification hole, and a dehumidifier (52) is installed on the upper side of the chamber body (51). The dehumidifier (52) is connected to the dehumidification hole.

6. The colored stone insulation board production line according to claim 1, characterized in that, The sealing spraying chamber (6) is provided with a shaping and drying chamber (7) on the rear side, in which a blower (71) is installed. The air outlet of the blower (71) is equipped with an air guide hood (72). The lower opening of the air guide hood (72) is rectangular and is deflected around the vertical axis.

7. The colored stone insulation board production line according to claim 1, characterized in that, A vision system is installed in the colored sand spraying chamber (4). The vision system is connected to a spraying fine-tuning controller. The spraying fine-tuning controller is electrically connected to the transverse drive device (412), the angle adjustment drive device (415), and the colored sand nozzle (42).

8. The colored stone insulation board production line according to claim 1, characterized in that, Multiple colored sand nozzles (42) are arranged at intervals along the left and right directions, and each colored sand nozzle (42) is independently controlled and connected to the spray fine-tuning controller.

9. A method for producing colored stone insulation boards, characterized in that, The production line for colored stone insulation boards as described in claim 7 includes the following steps: S1, Conveying: The insulation substrate is conveyed by the first conveyor (1); S2, Primer: When the thermal insulation substrate enters the primer spraying chamber (2), primer is sprayed onto its surface by the primer nozzle; S3, Sandblasting: After the base coat is applied, the thermal insulation substrate enters the colored sand spraying chamber (4). The lateral position and spraying angle of the colored sand nozzle (42) are adjusted by the adjusting component (41), and colored sand is sprayed onto its surface. S4. Leveling: After the thermal insulation substrate is sprayed with colored sand, it enters the colored sand leveling chamber to level the colored sand layer and make its surface uniform and flat. S5, Topcoat: Apply the top layer of topcoat through the sealing spray booth (6); S6, Finalization.

10. The method for producing colored stone insulation board according to claim 8, characterized in that, In step S3, the spray fine-tuning controller independently controls the opening and closing, lateral movement, spraying angle and spraying parameters of each colored sand nozzle (42) according to the position and contour information of the thermal insulation substrate obtained by the second vision system, and performs zoned spraying on the surface of the thermal insulation substrate.

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