Fireproof glass double-sided spraying type fireproof layer coating device and process

Abstract

The application relates to the technical field of spraying equipment, and discloses a double-sided spraying type fireproof layer coating device and process for fireproof glass, wherein the double-sided spraying type fireproof layer coating device for fireproof glass comprises a spraying box, a base arranged at the bottom of the spraying box, a pair of transmission devices, spraying equipment and drying equipment arranged in the spraying box, an air pump and a storage tank arranged at the top of the spraying box, a driving motor arranged in the base and a window arranged on the front of the spraying box. The double-sided spraying type fireproof layer coating device for fireproof glass pushes the sucking disc out to catch the glass plate by using the transmission pneumatic telescopic rod, sprays one side of the glass plate by using the spraying equipment, then the other side of the glass plate is caught by the other transmission device, the other side of the glass plate is sprayed by the same process, the whole process is reasonably arranged in one device, the integration degree of the device is strengthened, and the cost of the device is reduced.

Description

Technical Field

[0001] This invention relates to the field of spraying equipment technology, and in particular to a fireproof glass double-sided spraying fireproof layer coating device and process. Background Technology

[0002] Fire-resistant glass is a key functional component of building fire protection systems. The quality of its surface fire-resistant coating directly determines the fire resistance limit and safety of the glass. The operational precision, structural rationality, and degree of automation of the coating device are the core factors in ensuring the uniformity, adhesion, and thickness consistency of the fire-resistant coating.

[0003] Currently, the structural design of spraying equipment used in fireproof glass processing generally has limitations. Most mainstream equipment features a single-sided spraying structure, resulting in numerous technical shortcomings in overall equipment functionality, adaptability, and precision, making it difficult to meet the production requirements of high-quality double-sided coating. Existing single-sided spraying equipment only supports single-sided spraying operations. A complete double-sided coating process requires secondary alignment and a sheet flipping mechanism to complete the entire operation. The core structural design has procedural defects, leading to cumbersome equipment operation processes and poor coordination.

[0004] From the perspective of equipment structure and operational performance, existing single-sided spraying equipment has multiple inherent defects.

[0005] Firstly, the equipment has low integration and lacks an integrated double-sided spraying structure. It requires auxiliary equipment for flipping and secondary positioning to work together. The overall production line is long and the linkage error of each mechanism is large. During the flipping and transfer of the board, positional shifts and positioning deviations are prone to occur, resulting in insufficient alignment accuracy of the secondary spraying. This leads to problems such as misalignment of the double-sided coating, uneven thickness, and missing coating at the edges, which greatly reduces the coating yield.

[0006] Secondly, existing spraying equipment suffers from a technical defect during large-scale reciprocating spraying operations: paint accumulates and overlaps at the spraying junctions between nozzles. The existing equipment lacks precise control over the nozzle travel and overlapping areas. When multiple nozzles are sprayed in sequence, paint is repeatedly sprayed and accumulates at the junctions of adjacent spraying paths, while the coating thickness is uniform in non-junction areas. This results in inconsistent coating thickness on the fireproof glass panel surface, with excessively thick coatings at junctions, leading to drips, uneven curing, and other problems. This severely compromises the overall coating smoothness and thickness consistency, failing to meet the requirements for high-precision fireproof coating processing.

[0007] Third, the spraying chambers of existing spraying equipment are mostly open structures without enclosed enclosures. During the spraying process, the atomized particles of fire-retardant coating are easily dispersed in large quantities, affecting other equipment. Summary of the Invention

[0008] Given the problems of existing technologies, such as single-sided spraying only, the need for flipping and secondary positioning, poor alignment accuracy, uneven coating quality, paint accumulation at nozzle junctions, large paint drift and loss in open cavities, low yield and processing accuracy, cumbersome procedures, and poor equipment linkage, a double-sided spraying fireproof layer coating device and process for fireproof glass is proposed.

[0009] This application provides a fireproof glass double-sided spray coating device and process, the purpose of which is to overcome the defects of the existing single-sided spray coating process, realize the integrated double-sided precise spraying of fireproof glass, eliminate problems such as coating misalignment, uneven thickness, paint accumulation and dripping, reduce paint drift and loss, improve coating forming quality and yield, simplify the operation process, and improve equipment automation and operation accuracy.

[0010] The technical solution of the present invention is as follows: a fireproof glass double-sided spraying fireproof layer coating device for glass surface treatment, including a spraying box, a base set at the bottom of the spraying box, a pair of transfer devices, a spraying device and a drying device set inside the spraying box, an air pump and a storage tank set at the top of the spraying box, a drive motor set in the base, and a window opened on the front of the spraying box.

[0011] The transfer device includes a main shaft inside the spray box, transfer pneumatic telescopic rods arranged in a circular array outside the main shaft, a suction cup located at the end of the transfer pneumatic telescopic rods away from the main shaft, a control table located on the top of the main shaft, and a control air pipe located between the control table and the suction cup.

[0012] The spraying equipment and drying equipment are respectively distributed around the two transfer devices, with the window located directly in front of the transfer devices, and the control panel connected to the air pump.

[0013] Furthermore, the spraying equipment includes a back plate disposed on the inner wall of the spraying box, a base disposed on the back plate near the transfer device, a sliding groove formed on the surface of the base, a threaded rod disposed on the inner side of the base, a sliding rod disposed on the outer side of the threaded rod, a spraying frame disposed on the sliding rod near the transfer device, a nozzle disposed on the spraying frame away from the sliding rod, a flow divider cavity formed inside the spraying frame, and a paint pipe disposed on the spraying frame near the sliding rod.

[0014] The sliding rod passes through the sliding groove, the spray frame is attached to the surface of the base, and the diversion cavity connects all the nozzles and paint pipes.

[0015] Furthermore, the spraying equipment also includes a push pneumatic telescopic rod disposed inside the spraying box, and a sleeve disposed at the end of the push pneumatic telescopic rod away from the inner wall of the spraying box.

[0016] The sleeve is slidably fitted on the outside of the base and protrudes along the outer contour of the base toward the transmission device.

[0017] Furthermore, the sliding groove is provided with two zipper partitions and a sliding platform inside. The two zipper partitions are connected by zipper teeth, and the sliding platform slides between the two zipper partitions, with a pull head provided at both ends.

[0018] Furthermore, a corrugated groove is provided on the side of the base near the transfer device, a rocker slider is provided on the side of the spray frame near the base, and an offset groove is provided on the side of the spray frame near the base.

[0019] The rocker slider is slidably connected inside the corrugated groove.

[0020] Furthermore, the spraying equipment also includes an assembly groove opened on the side of the spraying frame near the transfer device, a recovery pipe set on the side of the spraying frame near the sliding rod, and a recovery cover set inside the assembly groove.

[0021] The recycling pipe is connected to the assembly tank, and a double-layer cavity is provided inside the recycling cover. One end of the double-layer cavity extends towards the base and connects with the assembly tank, while the other end of the double-layer cavity extends towards the transfer equipment and penetrates to the surface of the recycling cover.

[0022] Furthermore, the length of the inner annular wall of the interlayer cavity of the recovery hood is less than the length of the outer annular wall of the interlayer cavity.

[0023] Furthermore, a hollow cavity is formed inside the sliding rod, through which the coating tube and the recovery tube pass.

[0024] Furthermore, the present invention also provides a process for using a fireproof glass double-sided spray-coating fireproof layer coating device, including the following steps: Step 1: After tempering and cutting the glass, finely grinding and chamfering it, it is ultrasonically cleaned, double-sided plasma activated, and dried at low temperature in a dust-free environment to ensure that the substrate is clean and the surface adhesion meets the standards, and then it is ready for use.

[0025] Step 2: Prepare the inorganic fire retardant coating according to the standard ratio, stir thoroughly, filter in two stages, let it stand to defoam, control the viscosity of the coating to meet the requirements, and use it within the expiration date, eliminating impurities, bubbles and gel problems.

[0026] Step 3: Adjust the equipment parameters. Maintain a stable internal temperature and humidity in the spray box. Adjust the spraying pressure of the spraying equipment, the vertical distance between the nozzle and the glass surface, and the temperature of the drying equipment.

[0027] Step 4: Transfer the glass to the transfer equipment, then to the spraying equipment for spraying, then to the drying equipment for drying, then to the second set of transfer equipment to spray the other side of the glass, and finally send the glass plate out.

[0028] The beneficial effects of this invention are as follows: 1. By setting up a transfer device, the glass plate is sent into the spray box through the window during operation. The corresponding air pipe is inflated, and the suction cup is pushed out to catch the glass plate using the transfer pneumatic telescopic rod. The corresponding air pipe is then inhaled, causing the suction cup to adhere to the glass plate. Subsequently, the drive motor drives the main shaft to rotate, sending the glass plate to the spraying position. The spraying equipment sprays one side of the glass plate, and then the glass plate is sent to the drying position for drying. Finally, the glass plate is sent to the inner interaction position, where the transfer device on the other side catches the glass plate. The same process is repeated to spray the other side of the glass plate. Finally, the glass plate is sent out through the window. In this way, the entire process is reasonably set up in one device, which enhances the integration of the equipment, reduces the equipment cost, and also avoids positional shifts and positioning deviations of the glass plate during the flipping and transfer process, which is conducive to improving product quality.

[0029] 2. By setting up a spraying device, after the glass plate reaches the spraying position, the pneumatic telescopic rod pushes the glass closer to the base, and then pushes the sleeve closer to the glass until the glass enters the sleeve. Then, the paint pipe pressurizes the distribution chamber, and the nozzle sprays the paint onto the glass. In this way, the splashed paint can be confined within the sleeve, preventing paint particles from escaping inside the spray box and affecting other equipment.

[0030] 3. By setting up a rocking slider and a corrugated groove, when the sliding rod drives the spray frame to slide up and down, the rocking slider moves in the corrugated groove. Affected by the corrugated path of the corrugated groove, the rocking slider controls the spray frame to rock. In this way, the overlapping area of ​​spraying generated by multiple sets of nozzles also continuously rocks and moves, which can make the spraying more uniform.

[0031] 4. By setting up a recovery hood, when the nozzle is spraying, the paint is sprayed towards the glass. After the paint comes into contact with the glass, part of it adheres to the glass surface, and part of it splashes towards the recovery hood. The recovery pipe forms a negative pressure in the interlayer cavity through the assembly groove, so that the splashed paint will enter the interlayer cavity, preventing these scattered paints from adhering to other parts of the glass and affecting the glass quality. Attached Figure Description

[0032] Figure 1 This is a perspective view of the fireproof glass double-sided spray-coating fireproof layer coating device of the present invention.

[0033] Figure 2 This is a schematic diagram of the interior of the spray box of the present invention.

[0034] Figure 3 This is a schematic diagram of the drying equipment of the present invention.

[0035] Figure 4 This is a schematic diagram of the transmission device of the present invention.

[0036] Figure 5 This is a schematic diagram of the spraying equipment of the present invention.

[0037] Figure 6 This is a disassembled diagram of the spraying equipment of the present invention.

[0038] Figure 7 For the present invention Figure 6 Second-person perspective illustration.

[0039] Figure 8 This is a schematic diagram of the interior of the base of the present invention.

[0040] Figure 9 This is a schematic diagram of the spraying frame of the present invention.

[0041] Figure 10 For the present invention Figure 9 Second-person perspective illustration.

[0042] Figure 11 This is a schematic diagram of the recycling hood of the present invention.

[0043] Figure 12 This is a plan view of the spraying equipment of the present invention.

[0044] Figure 13 For the present invention Figure 12 Sectional view at point AA.

[0045] Figure 14 For the present invention Figure 13 Enlarged view of section B in the middle.

[0046] In the diagram: 1. Spraying box; 11. Window; 2. Base; 21. Drive motor; 3. Transfer equipment; 31. Main shaft; 32. Transfer pneumatic telescopic rod; 33. Suction cup; 34. Control panel; 35. Control air pipe; 4. Spraying equipment; 41. Back plate; 42. Pushing pneumatic telescopic rod; 43. Base; 431. Corrugated chute; 44. Enclosure; 45. Sliding groove; 451. Zipper partition; 452. Sliding table; 46. Threaded rod; 47. Sliding rod; 48. Spraying frame; 481. Swing slider; 482. Offset groove; 49. Nozzle; 410. Diverter chamber; 411. Paint pipe; 412. Assembly groove; 413. Recovery pipe; 414. Recovery cover; 5. Drying equipment; 6. Air pump; 7. Storage tank. Detailed Implementation

[0047] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0048] Example 1, referring to Figures 1-14The first embodiment of the present invention provides a fireproof glass double-sided spray-coating fireproof layer coating device for glass surface treatment, including a spray box 1, a base 2 disposed at the bottom of the spray box 1, a pair of transfer devices 3, a spraying device 4 and a drying device 5 disposed inside the spray box 1, an air pump 6 and a storage tank 7 disposed at the top of the spray box 1, a drive motor 21 disposed in the base 2, and a window 11 opened on the front of the spray box 1.

[0049] The transfer device 3 includes a main shaft 31 installed inside the spray box 1, transfer pneumatic telescopic rods 32 arranged in a ring array outside the main shaft 31, a suction cup 33 installed at the end of the transfer pneumatic telescopic rod 32 away from the main shaft 31, a control table 34 installed on the top of the main shaft 31, and a control air pipe 35 installed between the control table 34 and the suction cup 33.

[0050] Specifically, the spray box 1 and the base 2 are fixed together by bolts. Multiple drive motors 21 are provided, and their positions correspond to the transfer equipment 3, the spraying equipment 4 and the drying equipment 5 respectively. The spraying equipment 4 and the drying equipment 5 are distributed around the two transfer equipment 3 respectively. The transfer equipment 3 is provided with four working positions, namely the outer interaction position, the inner interaction position, the spraying position and the drying position. The outer interaction position is close to the window 11, the inner interaction position is located on the adjacent side of the two transfer equipment 3, the spraying position is located before the drying position, and the window 11 is located directly in front of the transfer equipment 3. The main shaft 31 passes downward through the spray box 1 and is fixedly connected to the drive motor 21. The transfer pneumatic telescopic rod 32 is welded to the main shaft 31. The suction cup 33 is fixed to the transfer pneumatic telescopic rod 32 by bolts. The control table 34 is connected to the air pump 6 through a pipe. Multiple solenoid valves are provided in the control table 34 to control the time, sequence and state of airflow entering and exiting the control air pipe 35. One end of the control air pipe 35 is connected to the suction cup 33 and the other end is connected to the control table 34.

[0051] By setting up the transfer device 3, during operation, the glass plate is sent from the window 11 into the spray box 1. The corresponding control air pipe 35 is inflated, and the transfer pneumatic telescopic rod 32 pushes out the suction cup 33 to catch the glass plate. The corresponding control air pipe 35 draws in air, causing the suction cup 33 to adhere to the glass plate. Then, the drive motor 21 drives the main shaft 31 to rotate, sending the glass plate to the spraying position. The spraying equipment 4 sprays one side of the glass plate, and then the glass plate is sent to the drying position, where it is dried using the drying equipment 5. Finally, the glass plate is sent to the inner interaction position, where the other side of the transfer device 3 catches the glass plate, and the same process is repeated to spray the other side of the glass plate. Finally, the glass plate is sent out from the window 11. In this way, the entire process is reasonably set up in one device, which enhances the integration of the equipment, reduces the equipment cost, and also avoids positional shifts and positioning deviations of the glass plate during the flipping and transfer process, which is conducive to improving product quality.

[0052] The spraying equipment 4 includes a back plate 41 disposed on the inner wall of the spraying box 1, a base 43 disposed on the side of the back plate 41 near the transfer device 3, a sliding groove 45 extending through the surface of the base 43, a threaded rod 46 disposed on the inner side of the base 43, a sliding rod 47 disposed on the outer side of the threaded rod 46, a spraying frame 48 disposed on the side of the sliding rod 47 near the transfer device 3, a nozzle 49 disposed on the side of the spraying frame 48 away from the sliding rod 47, a flow distribution cavity 410 disposed inside the spraying frame 48, and a paint pipe 411 disposed on the side of the spraying frame 48 near the sliding rod 47.

[0053] Specifically, the back plate 41 is fixed to the spray box 1 by bolts, the base 43 is fixed to the back plate 41 by a bracket, the threaded rod 46 is rotatably connected to the base 43, a transmission gear set is provided between the threaded rod 46 and the drive motor 21, the sliding rod 47 passes through the sliding groove 45 and can slide in the sliding groove 45, the spray frame 48 is fixed to the sliding rod 47 by bolts, the spray frame 48 is attached to the surface of the base 43 and can slide on the surface of the base 43, the nozzle 49 is threaded into the spray frame 48, the nozzle 49 sprays out a cone-shaped spray, the diversion chamber 410 connects all the nozzles 49 and the paint pipe 411, and the paint pipe 411 is connected to the storage tank 7.

[0054] The spraying equipment 4 also includes a push pneumatic telescopic rod 42 disposed inside the spraying box 1, and a sleeve 44 disposed at the end of the push pneumatic telescopic rod 42 away from the inner wall of the spraying box 1.

[0055] Specifically, the push pneumatic telescopic rod 42 is distributed at the upper and lower ends of the back plate 41 and is fixed to the spray box 1 by bolts. The sleeve 44 is snapped with the push pneumatic telescopic rod 42. The sleeve 44 is slidably sleeved on the outside of the base 43 and protrudes along the outer contour of the base 43 towards the transmission device 3.

[0056] By setting up the spraying equipment 4, after the glass plate reaches the spraying position, the pneumatic telescopic rod 32 pushes the glass closer to the base 43, and pushes the sleeve 44 closer to the glass until the glass enters the sleeve 44. Then, the paint pipe 411 pressurizes the flow chamber 410, and the nozzle 49 sprays the paint onto the glass. In this way, the splashed paint can be confined within the sleeve 44, preventing paint particles from escaping inside the spraying box 1 and affecting other equipment.

[0057] The sliding groove 45 is provided with two zipper partitions 451 and a sliding platform 452. The two zipper partitions 451 are glued to the base 43 and connected by zipper teeth. The sliding platform 452 slides between the two zipper partitions 451 and has a pull head at both ends. When the sliding platform 452 moves, the pull head in the direction of movement opens the zipper partition 451 and the pull head in the opposite direction closes the zipper partition 451. The sliding rod 47 passes through the sliding platform 452.

[0058] By setting a zipper partition 451, the sliding groove 45 is sealed to prevent the paint from escaping from the sliding groove 45.

[0059] A recycling pipe 413 is provided on the side of the base 43 near the transfer device 3, a swing slider 481 is provided on the side of the spray frame 48 near the base 43, and an offset groove 482 is provided on the side of the spray frame 48 near the base 43. Specifically, the recycling tube 413 is configured as a uniform and stable corrugated shape, the rocker slider 481 is slidably connected inside the corrugated groove 431, and the offset groove 482 corresponds to the fixing bolt between the sliding rod 47 and the spray frame 48, so that the fixing bolt can slide in the offset groove 482.

[0060] By setting up a rocker slider 481 and a corrugated groove 431, when the sliding rod 47 drives the spray frame 48 to slide up and down, the rocker slider 481 moves within the corrugated groove 431. Affected by the corrugated path of the corrugated groove 431, the rocker slider 481 controls the spray frame 48 to rock. Thus, the overlapping area of ​​the spraying generated when multiple sets of nozzles 49 spray also continuously rocks and moves, which can make the thickness of the spray uniform.

[0061] The spraying equipment 4 also includes an assembly groove 412 located on the side of the spraying frame 48 near the transfer device 3, a recovery pipe 413 located on the side of the spraying frame 48 near the sliding rod 47, and a recovery cover 414 located inside the assembly groove 412.

[0062] Specifically, the recovery pipe 413 is connected to the assembly groove 412, which surrounds all the nozzles 49. The recovery cover 414 is snapped into the assembly groove 412. The recovery cover 414 has a double-layer cavity inside. One end of the double-layer cavity extends towards the base 43 and connects to the assembly groove 412. The other end of the double-layer cavity extends towards the transfer device 3 and penetrates to the surface of the recovery cover 414. The length of the inner ring wall of the double-layer cavity of the recovery cover 414 is less than the length of the outer ring wall of the double-layer cavity. This makes it easier for the paint sputtered on the glass surface to enter the double-layer cavity. The inner wall of the recovery cover 414 is parallel to the generatrix of the cone-shaped spray from the nozzles 49, thus preventing the paint from being sprayed on the inner wall of the recovery cover 414.

[0063] By setting up a recovery hood 414, when the nozzle 49 sprays, the paint is sprayed towards the glass. After the paint comes into contact with the glass, part of it adheres to the glass surface and part of it splashes towards the recovery hood 414. The recovery pipe 413 forms a negative pressure in the interlayer cavity through the assembly groove 412, so that the splashed paint will enter the interlayer cavity, preventing these scattered paints from adhering to other parts of the glass and affecting the glass quality.

[0064] Specifically, a hollow cavity is opened inside the sliding rod 47, through which the paint tube 411 and the recovery tube 413 pass, ensuring that the paint tube 411 and the recovery tube 413 are not disturbed during the movement of the sliding rod 47.

[0065] Example 2, refer to Figures 1-2 The second embodiment of the present invention provides a fireproof glass double-sided spray coating process for fireproof glass, including the following steps: Step 1: After cutting and finely grinding the tempered glass, it is ultrasonically cleaned, double-sided plasma activated, and dried at low temperature in a dust-free environment to ensure that the substrate is clean and the surface adhesion meets the standards, and then it is ready for use.

[0066] Step 2: Prepare the inorganic fire retardant coating according to the standard ratio, stir thoroughly, filter in two stages, let it stand to defoam, control the viscosity of the coating to meet the requirements, and use it within the expiration date, eliminating impurities, bubbles and gel problems.

[0067] Step 3: Adjust the equipment parameters to maintain the internal temperature of the spray booth 1 at 22-26℃ and the humidity at 55%-65%, creating a Class 10,000 cleanroom environment.

[0068] The spraying equipment 4 is set with a spraying pressure of 0.42-0.55MPa, and the nozzle is perpendicular to the glass surface with a stable spacing of 20-30cm.

[0069] The drying equipment 5 adopts a gradient heating process of 60℃ pre-curing, 110-120℃ deep curing, and slow cooling.

[0070] Step 4: Transfer the glass to transfer device 3, then to spraying device 4 for spraying, then to drying device 5 for drying, then to the second set of transfer devices 3 for spraying the other side of the glass, and finally send the glass plate out.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A fireproof glass double-sided spray coating device for glass surface treatment, comprising a spray box (1), characterized in that: It also includes a base (2) at the bottom of the spray box (1), a pair of transfer devices (3), a spraying device (4) and a drying device (5) inside the spray box (1), an air pump (6) and a storage tank (7) at the top of the spray box (1), a drive motor (21) inside the base (2), and a window (11) on the front of the spray box (1). The transfer device (3) includes a main shaft (31) inside the spray box (1), a transfer pneumatic telescopic rod (32) arranged in a ring array outside the main shaft (31), a suction cup (33) at the end of the transfer pneumatic telescopic rod (32) away from the main shaft (31), a control table (34) at the top of the main shaft (31), and a control air pipe (35) between the control table (34) and the suction cup (33). The spraying equipment (4) and drying equipment (5) are distributed around the two transfer equipment (3) respectively. The window (11) is located in front of the transfer equipment (3). The control panel (34) is connected to the air pump (6).

2. The fireproof glass double-sided spray-coating fireproof layer coating device according to claim 1, characterized in that: The spraying equipment (4) includes a back plate (41) disposed on the inner wall of the spraying box (1), a base (43) disposed on the side of the back plate (41) near the transfer device (3), a sliding groove (45) opened on the surface of the base (43), a threaded rod (46) disposed on the inner side of the base (43), a sliding rod (47) disposed on the outer side of the threaded rod (46), a spraying frame (48) disposed on the side of the sliding rod (47) near the transfer device (3), a nozzle (49) disposed on the side of the spraying frame (48) away from the sliding rod (47), a diversion chamber (410) opened inside the spraying frame (48), and a paint pipe (411) disposed on the side of the spraying frame (48) near the sliding rod (47). The sliding rod (47) passes through the sliding groove (45), the spray frame (48) is attached to the surface of the base (43), and the diversion cavity (410) connects all the nozzles (49) and the paint tube (411).

3. The fireproof glass double-sided spray-coating fireproof layer coating device according to claim 2, characterized in that: The spraying equipment (4) also includes a push pneumatic telescopic rod (42) disposed inside the spraying box (1) and a sleeve (44) disposed at the end of the push pneumatic telescopic rod (42) away from the inner wall of the spraying box (1). The sleeve (44) is slidably sleeved on the outside of the base (43) and protrudes along the outer contour of the base (43) toward the transmission device (3).

4. The fireproof glass double-sided spray-coating fireproof layer coating device according to claim 2, characterized in that: The sliding groove (45) is provided with two zipper partitions (451) and a sliding platform (452). The two zipper partitions (451) are connected by zipper teeth. The sliding platform (452) slides between the two zipper partitions (451) and is provided with a pull head at both ends.

5. The fireproof glass double-sided spray-coating fireproof layer coating device according to claim 2, characterized in that: The base (43) has a corrugated groove (431) on the side near the transfer device (3), a rocker slider (481) is provided on the side of the spray frame (48) near the base (43), and an offset groove (482) is provided on the side of the spray frame (48) near the base (43). The rocker slider (481) is slidably connected inside the corrugated groove (431).

6. The fireproof glass double-sided spray-coating fireproof layer coating device according to claim 2, characterized in that: The spraying equipment (4) also includes an assembly slot (412) opened on the side of the spraying frame (48) near the transfer device (3), a recovery pipe (413) set on the side of the spraying frame (48) near the sliding rod (47), and a recovery cover (414) set inside the assembly slot (412). The recycling pipe (413) is connected to the assembly groove (412). The recycling cover (414) is provided with a double-layer cavity. One end of the double-layer cavity extends towards the base (43) and connects with the assembly groove (412). The other end of the double-layer cavity extends towards the transfer device (3) and penetrates to the surface of the recycling cover (414).

7. The fireproof glass double-sided spray-coating fireproof layer coating device according to claim 6, characterized in that: The length of the inner annular wall of the interlayer cavity of the recovery hood (414) is less than the length of the outer annular wall of the interlayer cavity.

8. The fireproof glass double-sided spray-coating fireproof layer coating device according to claim 6, characterized in that: The sliding rod (47) has a hollow cavity inside, through which the paint tube (411) and the recovery tube (413) pass.

9. A double-sided spray-coating process for fire-resistant glass, employing the double-sided spray-coating device for fire-resistant glass as described in claim 1, characterized in that... Includes the following steps: Step 1: After cutting and finely grinding the tempered glass, it is ultrasonically cleaned, double-sided plasma activated, and dried at low temperature in a dust-free environment to ensure that the substrate is clean and the surface adhesion meets the standards, and then set aside. Step 2: Prepare the inorganic fire retardant coating according to the standard ratio, stir thoroughly, filter in two stages, let it stand to defoam, control the viscosity of the coating to meet the requirements and use it within the expiration date, and eliminate impurities, bubbles and gel problems; Step 3: Adjust the equipment parameters. The spray box (1) maintains a stable internal temperature and humidity. Adjust the spraying pressure of the spraying equipment (4) and the vertical distance between the nozzle and the glass surface. Adjust the temperature of the drying equipment (5). Step 4: Transfer the glass to the transfer device (3), then transport it to the spraying device (4) for spraying, then transport it to the drying device (5) for drying, then transfer it to the second set of transfer devices (3) to spray the other side of the glass, and finally send the glass plate out.

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