A curing device for ALC wallboard production

Abstract

The application belongs to the technical field of building material production equipment, and particularly relates to a curing device for ALC wallboard production, which comprises a supporting frame and a PLC controller, the upper end of the supporting frame is fixedly connected with a supporting plate, the lower end of the supporting frame is fixedly connected with two moving sliding rails in a symmetrical manner, and the curing device further comprises a film covering assembly, a vacuum suction assembly and a film covering in-place feedback assembly. The curing device can efficiently wipe the water stains on the surface of the wallboard before film covering, and realize automatic drainage of the sponge to prevent water stains from causing defects. Meanwhile, the PE film is uniformly attached to the ALC wallboard without air bubbles, wrinkles, pressure marks and the like, and the film covering consistency is good. In addition, the curing device can quickly transfer the workpieces, link the processes and realize continuous operation, and greatly improve the curing quality of high-end ALC wallboards and the industrial production efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of building material production equipment, and in particular relates to a curing device for ALC wall panel production. Background Technology

[0002] Autoclaved aerated concrete (ALC) wall panels are porous inorganic lightweight building materials made from siliceous and calcareous materials as core raw materials, incorporating aluminum powder as a gas-generating agent, and reinforced with rust-proofed steel mesh. They are produced through processes such as batching and mixing, pouring for gas generation, pre-curing and cutting, and high-temperature, high-pressure autoclaving. ALC wall panels are one of the core enclosure materials for prefabricated buildings, possessing core characteristics such as lightweight and high strength, thermal insulation, Class A fire resistance, sound insulation, and durability. With the rapid development of my country's prefabricated building industry, the application scale of ALC wall panels in building envelope, interior decoration, and curtain wall engineering continues to expand, and the market is placing higher demands on the appearance precision, structural stability, and long-term durability of ALC wall panels.

[0003] Conventional ALC wall panels, after autoclaving, can be directly transferred to a temperature- and humidity-controlled storage yard for natural aging to meet basic usage requirements. However, for special categories such as fair-faced ALC wall panels, pre-coated decorative integrated ALC wall panels, ultra-thin ALC wall panels (thickness ≤75mm), large-span load-bearing ALC roofing / floor panels, irregularly shaped ALC wall panels, and high weather-resistant exterior ALC cladding panels, direct natural aging presents numerous unavoidable quality risks: these types of panels have issues with appearance flatness, dimensional accuracy, and surface finish. The integrity requirements are extremely high. During the natural aging process, the alternating dry and wet conditions on the panel surface and the uneven decrease in moisture content can easily lead to defects such as micro-cracks from drying shrinkage, efflorescence and whitening, color differences on the panel surface, warping and deformation, and chipping of edges and corners. Even slight whitening and cracks can lead to product scrap, making it impossible to meet the application requirements of high-end enclosure, fine interior decoration, and curtain wall projects in prefabricated buildings. Therefore, it is necessary to cover and seal the ALC wall panels after autoclaving and before aging curing. Covering stabilizes the temperature and humidity of the panel surface, controls the rate of moisture evaporation, and ensures the effect of aging curing.

[0004] Currently, the lamination of ALC wall panels is mainly done manually. Existing lamination technology has several insurmountable technical defects: First, manual application of the film followed by scraping with a squeegee cannot achieve uniform adhesion between the PE film and the panel surface, inevitably resulting in air bubbles, wrinkles, and localized gaps. Residual air bubbles can cause circular efflorescence white spots on the panel surface during curing, while wrinkles can cause localized stress concentration, forming linear shrinkage cracks, severely affecting the product's appearance and structural stability. Second, manual lamination mostly covers only one side of the ALC wall panel, failing to achieve a complete circumference seal, leading to uneven coverage on the front and back, edges, and center of the panel. The uneven rate of moisture content decrease in different parts of the panel can easily lead to deformation problems such as lateral bending, warping, and excessive deflection, especially in ultra-thin panels and large-span panels. Third, the uneven distribution of tension in the PE film applied manually can easily create local indentations and stretch marks on the panel surface. For decorative panels with strict appearance requirements, such defects can directly lead to product downgrading or scrapping. Fourth, the quality of manual lamination is greatly affected by the skill level of the operators, resulting in poor product consistency, low work efficiency, and an inability to meet the needs of large-scale industrial continuous production of ALC wall panels. Furthermore, the PE film is prone to slippage, lifting, and peeling after lamination, leading to complete failure of the curing effect.

[0005] Meanwhile, the existing lamination process lacks a corresponding pretreatment procedure for the panel surface. Before lamination, residual autoclaved condensate stains on the surface of ALC wall panels are only cleaned by wiping with a manual cloth or using a regular flat sponge roller, which has obvious technical shortcomings. When wiping with a regular flat sponge roller, the "water pushing" phenomenon is easy to occur, which cannot completely remove residual water stains in the porous structure of the ALC wall panel surface. Moreover, once the sponge is saturated with water, it cannot drain water quickly and automatically. During continuous operation, the water absorption effect is greatly reduced, which can easily cause water stains to remain on the panel surface. After lamination, the residual water stains are sealed between the film and the panel surface, which will continue to dissolve soluble salts and alkalis inside the panel, causing local efflorescence, mottling, surface powdering, and even micro-cracks due to uneven dry and wet stress, causing product quality defects from the source. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing a curing device for ALC wall panel production.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a curing device for ALC wall panel production, comprising a support frame and a PLC controller, wherein a support plate is fixedly connected to the upper end of the support frame, and two transfer slide rails are symmetrically fixed to the lower end of the support frame, and further comprising a film coating assembly, a vacuum suction assembly and a film coating positioning feedback assembly.

[0008] The coating assembly is fixed on the support frame and wraps around the ALC wall panel that needs to be coated.

[0009] The vacuum suction components are arranged on both sides of the coating component and are used to perform vacuum suction inside the coating component.

[0010] The film coating completion feedback component is installed on the film coating component and the vacuum suction component, and is connected to the film coating component. It confirms whether the film coating is in place based on the air pressure change in the film coating component.

[0011] In the above-mentioned curing device for ALC wall panel production, the film coating assembly includes a lower film coating frame. The lower end of the lower film coating frame is fixed to the support frame by a connecting plate. The upper end of the lower film coating frame is fixed to an upper film coating frame by multiple locking components. Sealing gaskets are fixed on opposite sides of the lower and upper film coating frames. PE film is fixed inside both the lower and upper film coating frames. Multiple one-way sealing vacuum suction nozzles are fixedly inserted on opposite sides of the lower film coating frame.

[0012] In the above-mentioned maintenance device for ALC wall panel production, the lower end of the upper film frame is symmetrically fixedly connected with multiple positioning pins, and the upper end of the lower film frame is provided with multiple positioning slots that match and are inserted into the positioning pins.

[0013] In the above-mentioned maintenance device for ALC wall panel production, the vacuum suction assembly includes two symmetrically arranged mounting plates. Two electric push rods are symmetrically fixedly inserted into the upper side wall of the mounting plates. The moving ends of the two electric push rods are fixed to the same buffer tube. The side wall of the buffer tube is fixedly connected to multiple suction needles corresponding to the positions of the one-way sealing vacuum suction nozzles. The lower end of the buffer tube is fixedly connected to a telescopic suction tube. A vacuum pump is installed on the telescopic suction tube, and the vacuum pump is fixed on the mounting plate.

[0014] In the above-mentioned ALC wall panel production curing device, the film coating feedback component includes a pressure cylinder fixedly connected to the side wall of the upper film coating frame. A movable piston is sealed inside the pressure cylinder. A measuring rod is fixedly connected to the side wall of the movable piston. The end of the measuring rod away from the movable piston passes through the outside of the pressure cylinder and is fixedly connected to a measuring plate. A pressure spring sleeved on the outside of the measuring rod is fixed between the movable piston and the pressure cylinder. An extension frame is fixed to the upper side wall of the mounting plate. A laser rangefinder is fixed on the extension frame and is positioned opposite to the measuring plate. The PLC controller determines whether the film coating component has completed the film coating based on the displacement of the measuring plate fed back by the laser rangefinder.

[0015] In the aforementioned maintenance device for ALC wall panel production, a drying assembly is also included. The drying assembly includes a U-shaped vertical plate. A bidirectional screw assembly is fixed to the lower end of the horizontal part of the U-shaped vertical plate. The lower ends of the two moving ends of the bidirectional screw assembly are rotatably connected to a rotating shaft. A fixed cylinder is fixed to the lower end of the rotating shaft. A ring plate is fixedly sleeved on the lower outer wall of the fixed cylinder. A ring plate is movably sleeved on the upper outer wall of the fixed cylinder. A cleaning sponge sleeve covering the fixed cylinder is fixed between the ring plate and the ring plate. A rotating screw is rotatably connected to the inner wall of the fixed cylinder. A lifting block is threaded onto the upper end of the rotating screw. Multiple connecting blocks are symmetrically fixed to the outer wall of the lifting block. The end of the connecting block away from the lifting block passes through the outside of the fixed cylinder through a strip-shaped opening in the outer wall of the fixed cylinder and is fixedly connected to the inner wall of the ring plate. A motor for driving the rotating screw to rotate is fixed to the lower end of the fixed cylinder.

[0016] In the above-mentioned maintenance device for ALC wall panel production, an elastic waterproof membrane is fixed on the inner side of the cleaning sponge sleeve to prevent water absorbed by the cleaning sponge sleeve from seeping into the fixed cylinder.

[0017] In the above-mentioned maintenance device for ALC wall panel production, the cleaning sponge sleeve is made of high-density absorbent sponge, and a honeycomb-shaped micro-pit array is pressed on its surface.

[0018] Compared with existing technologies, the advantages of this invention are as follows:

[0019] 1. Through the set film coating component, vacuum suction component, and film coating feedback component, the PE film is uniformly stressed by the negative pressure, which can tightly adhere to the outer surface of the ALC wall panel. There are no bubbles, wrinkles, or local gaps throughout the process. This can avoid the circular white spots caused by residual bubbles on the panel surface, and also prevent linear stress cracks caused by wrinkles. At the same time, it can achieve full circumference sealing of the wall panel. The tension of the PE film is evenly distributed, and no local pressure marks or pulling marks will be formed on the panel surface. The overall film coating consistency is excellent and it is suitable for large-scale industrial continuous production operations.

[0020] 2. The drying components can be set up to efficiently dry the ALC wall panel before it is laminated. When the cleaning sponge is saturated with water, it can quickly and automatically drain the water, ensuring that there are no water stains left on the surface of the ALC wall panel, thus avoiding various quality defects caused by residual water stains from the source.

[0021] 3. Through the set support frame, support plate and transfer slide rail, the ALC wall panels to be coated can be quickly transported to the coating station, and the coated wall panels can be transferred to the curing room, so as to realize smooth process connection and continuous operation, effectively improving the continuity of the overall curing process and production efficiency. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the coating component of the present invention;

[0023] Figure 2 This is an exploded three-dimensional structural diagram of the coating component of the present invention;

[0024] Figure 3 This is a front view structural schematic diagram of the coating component of the present invention;

[0025] Figure 4 This is a front cross-sectional view of the coating component of the present invention;

[0026] Figure 5 This is a three-dimensional structural schematic diagram of the film-coating positioning feedback component of the present invention;

[0027] Figure 6 This is a cross-sectional view of the film-coating positioning feedback component of the present invention;

[0028] Figure 7 This is a three-dimensional structural schematic diagram of the drying component of the present invention;

[0029] Figure 8 This is a cross-sectional view of the drying assembly of the present invention.

[0030] In the diagram: 1 Support frame, 2 Support plate, 3 Transfer slide rail, 4 Coating assembly, 41 Lower coating frame, 42 Connecting plate, 43 Locking assembly, 44 Upper coating frame, 45 PE film, 46 One-way sealing vacuum nozzle, 5 Vacuum suction assembly, 51 Mounting plate, 52 Electric push rod, 53 Buffer tube, 54 Suction needle, 55 Telescopic suction tube, 56 Vacuum pump, 6 Coating position feedback assembly, 61 Pressure cylinder, 62 Moving piston, 63 Measuring rod, 64 Measuring plate, 65 Pressure spring, 66 Extension frame, 67 Laser rangefinder, 7 Drying assembly, 71 U-shaped upright plate, 72 Bidirectional lead screw assembly, 73 Rotating shaft, 74 Fixed cylinder, 75 Ring plate one, 76 Ring plate two, 77 Cleaning sponge sleeve, 78 Rotating screw, 79 Lifting block, 710 Connecting block, 711 Strip opening, 712 Motor. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0032] like Figures 1-8 As shown, a curing device for ALC wall panel production includes a support frame 1 and a PLC controller. The upper end of the support frame 1 is fixedly connected to a support plate 2, and the lower end of the support frame 1 is symmetrically fixed with two transfer slide rails 3. It also includes a film coating assembly 4, a vacuum suction assembly 5, and a film coating positioning feedback assembly 6.

[0033] The film-coating assembly 4 is fixed on the support frame 1 and wraps around the ALC wall panel that needs to be film-coated. The film-coating assembly 4 includes a lower film-coating frame 41. The lower end of the lower film-coating frame 41 is fixed to the support frame 1 through a connecting plate 42. The upper end of the lower film-coating frame 41 is fixed to an upper film-coating frame 44 through multiple locking assemblies 43. Sealing gaskets are fixed on opposite sides of the lower film-coating frame 41 and the upper film-coating frame 44. PE film 45 is fixed inside the lower film-coating frame 41 and the upper film-coating frame 44. Multiple one-way sealing vacuum suction nozzles 46 are fixedly inserted on opposite sides of the lower film-coating frame 41. Multiple positioning pins are symmetrically fixedly connected to the lower end of the upper film-coating frame 44. Multiple positioning slots that match and insert with the positioning pins are opened at the upper end of the lower film-coating frame 41.

[0034] Vacuum suction assembly 5 is arranged on both sides of coating assembly 4 and is used to perform vacuum suction inside coating assembly 4. Vacuum suction assembly 5 includes two symmetrically arranged mounting plates 51. Two electric push rods 52 are symmetrically fixedly inserted on the upper side wall of mounting plate 51. The moving ends of the two electric push rods 52 are fixedly connected to the same buffer tube 53. Multiple suction needles 54 corresponding to the positions of one-way sealing vacuum suction nozzles 46 are fixedly connected to the side wall of buffer tube 53. A telescopic suction tube 55 is fixedly connected to the lower end of buffer tube 53. A vacuum pump 56 is installed on telescopic suction tube 55 and is fixed on mounting plate 51.

[0035] The film coating feedback component 6 is installed on the film coating component 4 and the vacuum suction component 5, and is connected to the film coating component 4. It confirms whether the film coating is in place based on the air pressure change in the film coating component 4. The film coating feedback component 6 includes a pressure cylinder 61 fixedly connected to the side wall of the upper film coating frame 44. A movable piston 62 is sealed inside the pressure cylinder 61. A measuring rod 63 is fixedly connected to the side wall of the movable piston 62. The end of the measuring rod 63 away from the movable piston 62 passes through the outside of the pressure cylinder 61 and is fixedly connected to a measuring plate 64. A pressure spring 65 is fixed between the movable piston 62 and the pressure cylinder 61 and is sleeved on the outside of the measuring rod 63. An extension frame 66 is fixed to the upper side wall of the mounting plate 51. A laser rangefinder 67 is fixed on the extension frame 66 and is positioned opposite to the measuring plate 64. The PLC controller determines whether the film coating component 4 is in place based on the displacement of the measuring plate 64 fed back by the laser rangefinder 67.

[0036] It also includes a drying assembly 7, which includes a U-shaped upright plate 71. A bidirectional screw assembly 72 is fixed to the lower end of the horizontal part of the U-shaped upright plate 71. The lower ends of the two moving ends of the bidirectional screw assembly 72 are rotatably connected to a rotating shaft 73. A fixed cylinder 74 is fixed to the lower end of the rotating shaft 73. A ring plate 75 is fixedly sleeved on the lower outer wall of the fixed cylinder 74. A ring plate 76 is movably sleeved on the upper outer wall of the fixed cylinder 74. A cleaning sponge sleeve 77 covering the fixed cylinder 74 is fixed between the ring plate 75 and the ring plate 76. An elastic waterproof membrane is fixed to the inner side of the cleaning sponge sleeve 77 to allow the cleaning sponge sleeve 77 to absorb water. It will not seep into the fixed cylinder 74. The cleaning sponge sleeve 77 is made of high-density absorbent sponge, and a honeycomb-shaped micro-pit array is pressed on its surface. The inner wall of the fixed cylinder 74 is rotatably connected to a rotating screw 78. The upper end of the rotating screw 78 is threaded with a lifting block 79. The outer wall of the lifting block 79 is symmetrically fixed with multiple connecting blocks 710. The end of the connecting block 710 away from the lifting block 79 passes through the outer wall of the fixed cylinder 74 through a strip-shaped opening 711 and is fixedly connected to the inner wall of the second ring plate 76. The lower end of the fixed cylinder 74 is fixed with a motor 712 for driving the rotating screw 78 to rotate.

[0037] The operating principle of the present invention is described as follows: The ALC wall panel that has completed high temperature and high pressure steam curing is continuously moved by the feeding conveyor belt in a vertical position to avoid the accumulation of condensate on the panel surface caused by flat placement. Finally, the ALC wall panel to be treated is accurately transported to the working position of the drying component 7.

[0038] The PLC controller starts the bidirectional screw assembly 72 of the drying assembly 7, which drives the two sets of fixed cylinders 74 to move towards each other until the cleaning sponge sleeves 77 on the outside of the fixed cylinders 74 are tightly attached to the front and back surfaces of the vertical ALC wall panel. As the feeding conveyor belt continues to convey, the ALC wall panel passes through the gap between the two sets of cleaning sponge sleeves 77 at a uniform speed, causing the cleaning sponge sleeves 77 to roll synchronously around the rotating shaft 73. During the rolling process, the condensate water stains on the entire front and back surfaces of the ALC wall panel are thoroughly wiped dry.

[0039] Among them, the cleaning sponge cover 77 uses a high-density water-absorbing sponge substrate with a honeycomb-shaped micro-pit array pressed on its surface. The micro-pits can form countless micro-water storage bags, which can instantly absorb the thin film of condensation on the board surface and the residual water stains in the porous structure of the ALC wall panel surface, greatly increasing the contact area and increasing the water absorption speed by more than twice that of a flat sponge. This avoids quality defects such as local efflorescence, spots, surface powdering, and dry and wet stress micro-cracks caused by residual water stains on the board surface during subsequent lamination operations.

[0040] When the cleaning sponge sleeve 77 reaches saturation with absorbed water, the PLC controller starts the motor 712, which drives the rotating screw 78 to rotate. Through the threaded transmission between the rotating screw 78 and the lifting block 79, the lifting block 79 moves smoothly along the axial direction of the fixed cylinder 74. The lifting block 79, through the connecting block 710 that passes through the strip-shaped opening 711, moves the second ring plate 76 horizontally toward the first ring plate 75, thereby axially and evenly squeezing the cleaning sponge sleeve 77 between the first ring plate 75 and the second ring plate 76. This quickly and completely drains the water absorbed inside the cleaning sponge sleeve 77, achieving automatic drainage and regeneration of the cleaning sponge sleeve 77. This ensures that the water absorption effect remains stable during continuous multi-batch operations. At the same time, an elastic waterproof membrane is fixed on the inner side of the cleaning sponge sleeve 77, which can completely isolate the squeezed-out sewage and prevent sewage from entering the fixed cylinder 74, causing component corrosion and jamming, thus improving the overall service life of the device.

[0041] After drying, the ALC wall panel is placed smoothly on the bottom PE film 45 inside the lower film frame 41, and the ALC wall panel is stably supported on the surface of the support plate 2 on the support frame 1, thus completing the precise positioning and fixing of the ALC wall panel. Through the alignment and cooperation of multiple positioning pins and positioning slots, the upper film frame 44 and the lower film frame 41 are precisely aligned and molded. Then, the lower film frame 41 and the upper film frame 44 are locked and fixed by the locking assembly 43, so that a sealed film cavity is formed between the lower film frame 41 and the upper film frame 44. The locking assembly 43 here adopts the existing conventional locking structure, which can achieve a stable locking of the lower film frame 41 and the upper film frame 44. Its specific structure is existing technology and will not be described in detail here.

[0042] After the mold is closed, the PLC controller controls the transfer slide rail 3 to start, and through the support frame 1 and the support plate 2, it drives the closed film assembly 4 and the internal ALC wall panel to be smoothly transferred to the working position of the vacuum suction assembly 5, so that the one-way sealing vacuum suction nozzle 46 on the side wall of the lower film frame 41 and the suction needle 54 of the vacuum suction assembly 5 are precisely coaxially aligned. Then, the PLC controller controls the electric push rod 52 to start, and the electric push rod 52 pushes the buffer tube 53 and multiple sets of suction needles 54 to move horizontally toward the one-way sealing vacuum suction nozzle 46, so that the suction needles 54 are inserted into the one-way sealing vacuum suction nozzle 46 and form a sealed connection.

[0043] After alignment and connection are completed, the PLC controller controls the vacuum pump 56 to start. The vacuum pump 56, through the telescopic suction tube 55, buffer tube 53, and suction needle 54, in conjunction with the one-way sealing vacuum suction nozzle 46, continuously applies negative pressure to the sealed film-coated cavity between the lower film-coated frame 41 and the upper film-coated frame 44. As the air pressure in the cavity continues to decrease, under the action of negative pressure, the bottom and top PE films 45 are uniformly stressed as a whole, and synchronously and seamlessly adhere tightly to the front and back surfaces, sides, and corners of the ALC wall panel, achieving full circumferential sealing of the ALC wall panel. There are no bubbles, wrinkles, or local gaps throughout the process. This avoids the circular white spots of alkali return on the panel surface caused by residual bubbles, and also eliminates linear stress cracks caused by wrinkles. At the same time, the tension of the PE film 45 is evenly distributed, and no local indentations or pulling marks are formed on the panel surface, resulting in excellent film coating consistency.

[0044] During the negative pressure suction process, the film covering position feedback component 6, which is connected to the upper film covering frame 44, works synchronously. As the air pressure in the film covering cavity continues to decrease, a negative pressure suction force is synchronously formed in the pressure cylinder 61, which causes the moving piston 62 to overcome the elastic force of the pressure spring 65 and drive the measuring rod 63 and the measuring plate 64 to move smoothly along the axial direction of the pressure cylinder 61. The laser rangefinder 67, which is fixed on the extension frame 66, monitors the distance value between itself and the measuring plate 64 in real time and feeds the value back to the PLC controller in real time.

[0045] When the vacuum level in the coating cavity reaches the preset threshold, the measuring plate 64 moves to the set detection position, and the laser rangefinder 67 sends a coating completion signal to the PLC controller. The PLC controller then determines that the vacuum adsorption coating operation is complete, first controls the vacuum pump 56 to stop working, and then controls the electric push rod 52 to drive the buffer tube 53 and the suction needle 54 to move back and reset, so that the suction needle 54 is completely separated from the one-way sealed vacuum suction nozzle 46.

[0046] Among them, the one-way sealing vacuum suction nozzle 46 is a spring-loaded ball-type self-sealing suction nozzle. When the suction needle 54 is inserted, it can open the valve core inside, so that the air passage is open and the suction operation is completed. When the suction needle 54 is pulled out, the valve core automatically rebounds under the elastic force of the return spring, instantly sealing the air passage, ensuring that the negative pressure state in the film-coating cavity does not leak, and ensuring that the PE film 45 continues to tightly cover the surface of the ALC wall panel, and stably maintains the film-coating effect.

[0047] After the film coating operation is completed, the PLC controller controls the transfer slide rail 3 to start again, and the film-coated ALC wall panel is smoothly transferred to the constant temperature and humidity curing room through the support frame 1 and the support plate 2 for subsequent aging and curing operations, thus completing the fully automated curing operation of the ALC wall panel.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A curing device for ALC wall panel production, comprising a support frame (1) and a PLC controller, wherein a support plate (2) is fixedly connected to the upper end of the support frame (1), and two transfer slide rails (3) are symmetrically fixed to the lower end of the support frame (1), characterized in that, It also includes a film coating component (4), a vacuum suction component (5), and a film coating positioning feedback component (6). The coating assembly (4) is fixed on the support frame (1) and wrapped around the ALC wall panel that needs to be coated; The vacuum suction assembly (5) is disposed on both sides of the coating assembly (4) and is used to perform vacuum suction inside the coating assembly (4); The coating completion feedback component (6) is installed on the coating component (4) and the vacuum suction component (5), and is connected to the coating component (4). It confirms whether the coating is completed based on the air pressure change in the coating component (4).

2. The curing device for ALC wall panel production according to claim 1, characterized in that, The coating assembly (4) includes a lower coating frame (41), the lower end of which is fixed to the support frame (1) by a connecting plate (42), and the upper end of which is fixed to an upper coating frame (44) by multiple locking assemblies (43). A sealing gasket is fixed on one side of both the lower coating frame (41) and the upper coating frame (44). A PE film (45) is fixed inside both the lower coating frame (41) and the upper coating frame (44). Multiple one-way sealing vacuum suction nozzles (46) are fixedly inserted on both opposite sides of the lower coating frame (41).

3. The curing device for ALC wall panel production according to claim 2, characterized in that, The lower end of the upper film frame (44) is symmetrically fixedly connected with multiple positioning pins, and the upper end of the lower film frame (41) is provided with multiple positioning slots that match and are inserted into the positioning pins.

4. The curing device for ALC wall panel production according to claim 2, characterized in that, The vacuum suction assembly (5) includes two symmetrically arranged mounting plates (51). Two electric push rods (52) are symmetrically fixedly inserted on the upper side wall of the mounting plate (51). The moving ends of the two electric push rods (52) are fixedly connected to the same buffer tube (53). The side wall of the buffer tube (53) is fixedly connected to multiple suction needles (54) corresponding to the positions of the one-way sealing vacuum suction nozzles (46). The lower end of the buffer tube (53) is fixedly connected to a telescopic suction tube (55). A vacuum pump (56) is installed on the telescopic suction tube (55). The vacuum pump (56) is fixed on the mounting plate (51).

5. A curing device for ALC wall panel production according to claim 4, characterized in that, The film coating feedback component (6) includes a pressure cylinder (61) fixedly connected to the side wall of the upper film coating frame (44). The inside of the pressure cylinder (61) is sealed with a movable piston (62). The side wall of the movable piston (62) is fixedly connected with a measuring rod (63). The end of the measuring rod (63) away from the movable piston (62) passes through the outside of the pressure cylinder (61) and is fixedly connected with a measuring plate (64). A pressure spring (65) sleeved on the outside of the measuring rod (63) is fixed between the movable piston (62) and the pressure cylinder (61). An extension frame (66) is fixed on the upper side wall of the mounting plate (51). A laser rangefinder (67) is fixed on the extension frame (66) and is positioned opposite to the measuring plate (64). The PLC controller determines whether the film coating component (4) is in place based on the displacement of the measuring plate (64) fed back by the laser rangefinder (67).

6. A curing device for ALC wall panel production according to claim 1, characterized in that, It also includes a drying assembly (7), which includes a U-shaped upright plate (71). A bidirectional screw assembly (72) is fixed to the lower end of the horizontal part of the U-shaped upright plate (71). The lower ends of the two moving ends of the bidirectional screw assembly (72) are rotatably connected to a rotating shaft (73). A fixed cylinder (74) is fixed to the lower end of the rotating shaft (73). A ring plate (75) is fixedly sleeved on the lower outer wall of the fixed cylinder (74). A ring plate (76) is movably sleeved on the upper outer wall of the fixed cylinder (74). A covering material is fixed between the ring plate (75) and the ring plate (76) covering the outside of the fixed cylinder (74). The cleaning sponge sleeve (77) has a rotating screw (78) rotatably connected to the inner wall of the fixed cylinder (74). The upper end of the rotating screw (78) is threaded with a lifting block (79). The outer wall of the lifting block (79) is symmetrically fixed with multiple connecting blocks (710). The end of the connecting block (710) away from the lifting block (79) passes through the outside of the fixed cylinder (74) through a strip opening (711) on the outer wall of the fixed cylinder (74) and is fixedly connected to the inner wall of the second ring plate (76). The lower end of the fixed cylinder (74) is fixed with a motor (712) for driving the rotating screw (78) to rotate.

7. A curing device for ALC wall panel production according to claim 6, characterized in that, The inner side of the cleaning sponge sleeve (77) is fixed with an elastic waterproof membrane so that the water absorbed by the cleaning sponge sleeve (77) will not seep into the fixed cylinder (74).

8. A curing device for ALC wall panel production according to claim 6, characterized in that, The cleaning sponge sleeve (77) is made of high-density absorbent sponge, and a honeycomb-shaped micro-pit array is pressed on its surface.

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