Dustproof air-drying and curing equipment based on GRG plate forming

Abstract

The dustproof air-drying curing equipment for GRG plate forming comprises a conveying table and dustproof drying covers, the dustproof drying covers are symmetrically installed on the top of the conveying table, and an observation cover is installed between the two dustproof drying covers; a dustproof, clean and dry environment is used as a main body, GRG plates on a storage rack are clamped and moved along with a clamping conveying mechanism, the follow-up air flow speed is increased through an air blower, horizontal cutting type GRG plate surface blowing drying is carried out, uniform drying of the surfaces of the GRG plates is achieved, real-time monitoring is carried out by combining a humidity sensor in an observation cover, and the GRG plate surface drying efficiency is improved. The air temperature and humidity are adjusted in stages, excessive drying and cracking of the plates are avoided, the curing quality is improved, meanwhile, the whole conveying table can be provided with a plurality of dustproof drying covers to adapt to different-scale production requirements, the flexibility of air-drying curing equipment is improved due to modular assembly, and the application range is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of GRG sheet forming and drying, and specifically to a dust-proof air-drying and curing device for GRG sheet forming. Background Technique

[0002] GRG sheets, that is, glass fiber reinforced gypsum, usually use molds for forming, including silicone or fiberglass molds. In terms of materials, the mixing ratio of gypsum powder and glass fiber is very important. Other additives may also be needed to improve performance. The mixing time and uniformity are also crucial to ensure uniform fiber distribution. After pouring into the mold, vibration or vacuum treatment may be required to remove air bubbles and increase density. Subsequently, wait for curing, and the time may vary according to the ambient temperature and humidity, usually taking several hours to a day.

[0003] To remove the free water inside the sheet, improve strength and dimensional stability, reduce the moisture content to below 5%, and avoid moisture absorption and deformation during the later use of the sheet, a tunnel dryer is usually adopted, which relies on wind speed and humidity control, but has high energy consumption, low thermal efficiency, and an open structure is prone to introducing dust pollution. At the same time, the moisture content of the sheet is reduced to below 5% to prevent moisture absorption and deformation, but it is difficult to accurately adjust the temperature and humidity during the drying stage by traditional methods, which is prone to cracking or uneven drying. And installing relevant dehumidification components requires shutdown and replacement, interrupting the production process and affecting the continuous operation ability. Summary of the Invention

[0004] The purpose of the present invention is to provide a dust-proof air-drying and curing device for GRG sheet forming to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A dust-proof air-drying and curing device for GRG sheet forming, including a transfer table and a dust-proof drying cover. The top of the transfer table is symmetrically installed with dust-proof drying covers. An observation cover is installed between the two dust-proof drying covers. A slide rail is installed on the transfer table and inside the dust-proof drying cover. A storage rack is slidably connected to the top of the slide rail. Inside the dust-proof drying cover, a clamping and transfer mechanism is symmetrically slidably connected on both sides of the slide rail.

[0006] The clamping and transfer mechanism includes a centering frame and an air cover. The centering frame is symmetrically slidably connected inside the dust-proof drying cover. An air cover is fixedly connected to the inner side of the centering frame. A guide pipe is communicated with the top of the air cover. A conveyor belt is installed on the centering frame.

[0007] A dehumidification cover is installed on the top of the dust-proof drying cover. A circulation cover is installed inside the dehumidification cover. Conducting pipes are opened on both sides of the circulation cover. One-sided conducting pipe is communicated with the guide pipe on one-sided centering frame, and the other-sided conducting pipe is communicated with the guide pipe on the other-sided centering frame. A combined sliding frame is slidably connected inside the dehumidification cover. A molecular sieve plate is installed on the combined sliding frame.

[0008] Furthermore, a control box is fixed to the bottom of the transfer table by bolts. A turntable is movably connected inside the control box. Two arms are symmetrically and rotatably connected to the top of the turntable at the center on both sides. One side of each arm penetrates through the notch on the top of the transfer table and is correspondingly and movably connected to the centering frames on both sides.

[0009] Furthermore, dehumidifying boxes are symmetrically fixed to both sides of the circulation cover. Moisture discharge openings are symmetrically formed on both sides of the dehumidifying box. A filter screen is installed on one side of the moisture discharge opening, and the other moisture discharge opening penetrates through the dehumidifying cover.

[0010] Furthermore, a first drive shaft and a second drive shaft are movably connected to the inner wall of the bottom of the dehumidifying cover. A limiting cylinder is fixedly connected to the end of the first drive shaft. A first gear is sleeved and fixed to the end of the second drive shaft. The limiting cylinder and the first gear are movably abutted against each other through bearings.

[0011] Furthermore, an arc-shaped rack is movably connected to the inner wall of the bottom of the dehumidifying cover. The top of the arc-shaped rack is meshed and connected with the combined sliding frame installed inside the circulation cover. A block is fixedly connected to the outer wall of the limiting cylinder. A protrusion on the side wall of the arc-shaped rack abuts against the outer wall of the limiting cylinder.

[0012] Furthermore, friction shafts are symmetrically and movably connected to the side wall of one side of the dehumidifying box. A transmission sliding sleeve is slidably connected to the inner wall of the dehumidifying cover. A second gear is sleeved and fixed on the transmission sliding sleeve, and the second gear is meshed with the first gear. A protrusion on the other side of the arc-shaped rack abuts against a channel on the transmission sliding sleeve.

[0013] Furthermore, a tooth shaft is movably connected to one side of the dehumidifying box. An exhaust fan is movably connected to one side of the dehumidifying box through a bracket. One side of the tooth shaft is meshed with the central gear of the exhaust fan. One end of the friction shaft penetrates through the dehumidifying box and is meshed with the tooth shaft through a gear.

[0014] Furthermore, a blower is installed inside the circulation cover. A heating network group is installed inside the circulation cover and on the side of the blower.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. In the present invention, by constructing a dust-proof and clean and dry environment, along with the clamping and transfer mechanism for clamping and moving the GRG plates on the storage rack, and then the blower is used to increase the air flow rate to blow and dry the surface of the flat-cut GRG plates, the surface of the GRG plates is uniformly dried. Combined with the real-time monitoring of the humidity sensor inside the observation cover, the air temperature and humidity are adjusted in stages to avoid excessive drying and cracking of the plates, improve the curing quality. At the same time, multiple dust-proof and drying covers can be installed on the entire transfer table to adapt to the production requirements of different scales, and the modular assembly is flexible to use;

[0017] 2. In the present invention, the dehumidification cover is installed to achieve efficient cyclic dehumidification, and heat energy is recycled during the dehumidification process, which is energy-saving and environmentally friendly. The rotation of the transmission shaft is used for adjustment, and the rotation of the limiting cylinder enables the rotation of the arc-shaped toothed rod, driving the switching of the position of the molecular sieve plate on the combined sliding frame within the flow-through cover. At the same time, the dehydration of the saturated molecular sieve plate is accelerated. When the arc-shaped toothed rod rotates, the transmission sliding sleeve is switched at the ends of the two friction shafts. Along with the rotation of the gear, the exhaust fan connected to the toothed shaft rotates, accelerating the air flow within the dehumidification box and realizing the high-speed dehydration of the saturated molecular sieve plate, which is conducive to subsequent cyclic switching and use. Through mechanical linkage, airtight circulation, and intelligent control, the problems of low drying efficiency, high energy consumption, and easy pollution of traditional GRG plates are solved. It combines high efficiency, environmental protection, and stability, and is suitable for large-scale industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the dust-proof air-drying and curing equipment for GRG plate forming of the present invention;

[0019] Figure 2 is a schematic diagram of the structure of the dust-proof drying cover of the present invention with the top removed;

[0020] Figure 3 is a schematic diagram of the installation structure of the turntable inside the control box of the present invention;

[0021] Figure 4 is a schematic diagram of the installation structure of the flow-through cover inside the dehumidification cover of the present invention;

[0022] Figure 5 is a schematic diagram of the installation structure of the molecular sieve plate on the combined sliding frame of the present invention;

[0023] Figure 6 is a schematic diagram of the structure of the combined sliding frame cooperating with the rotation of the arc-shaped toothed rod of the present invention;

[0024] Figure 7 is a schematic diagram of the rotation of the friction shaft driving the exhaust fan connected to the toothed shaft of the present invention;

[0025] Figure 8 is a schematic diagram of the air flow of the dust-proof air-drying and curing equipment for GRG plate forming of the present invention.

[0026] In the figure: 1. Conveying platform; 2. Dust-proof drying cover; 3. Slide rail; 4. Storage rack; 5. Clamping conveying mechanism; 501. Centering rack; 502. Conveyor belt; 503. Air hood; 504. Air guide tube; 6. Control box; 7. Turntable; 8. Rotating arm; 9. Dehumidification hood; 10. Circulation hood; 11. Blower; 12. Combined slide; 13. Molecular sieve plate; 14. Conducting tube; 15. Dehumidification box; 16. Filter screen; 17. Dehumidification port; 18. Transmission shaft one; 19. Transmission shaft two; 20. Gear one; 21. Limiting cylinder; 22. Block; 23. Arc gear rod; 24. Transmission sleeve; 25. Gear two; 26. Friction shaft; 27. Gear shaft; 28. Dehumidification fan. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-8 , the present invention provides a technical solution:

[0029] Embodiment 1: adopting the mobile air drying curing process, the GRG sheets to be dried are stacked on the storage rack 4, separated from each other, and the air in the dustproof drying box is transmitted and heated by the blower 11 and the heating net group to complete the moisture exchange on the surface of the GRG sheets, and finally the excess moisture in the air is removed by the dehumidification cover 9 installed on the top, and the hot air is closed and circulated in the dustproof drying cover 2, so that the heat energy is efficiently utilized;

[0030] like Figure 1 and Figure 2 As shown, two dustproof drying covers 2 are installed on the top of the transmission platform 1, and the two are connected by an observation cover. At the same time, a humidifier is installed in the observation cover. The humidity sensor is used for real-time feedback, and the air humidification is adjusted in stages to avoid excessive drying and cracking of the GRG board in the early stage. At the same time, it is also convenient to understand the surface conditions of the GRG board in real time when the GRG board is dried. A slide rail 3 is set in the dustproof drying cover 2, and a storage rack 4 is installed on the slide rail 3. In order to make the surface of the GRG board evenly heated, a layered storage rack 4 is used to separate the GRG board, and at the same time, the subsequent hot air flow direction is controlled, and the direct blowing drying efficiency is high;

[0031] For the convenience of controlling the movement and drying of GRG plates on the storage rack 4, clamping and transmission mechanisms 5 are symmetrically installed on both sides of the slide rail 3 inside the dust-proof drying cover 2. A conveyor belt 502 is installed on the main body centering frame 501. At the same time, holes are designed between the conveyor belts 502. An air hood 503 is installed between the conveyor belts 502. The top of the air hood 503 is connected to a gas guide pipe 504. The gas guide pipes 504 on both sides of the centering frame 501 are connected to both sides of the top dehumidification cover 9 through pipes. Along with the high-temperature blowing of the air hood 503 inside one-sided centering frame 501, the heated air comes to the other-sided centering frame 501 through the interlayer on the storage rack 4, and then absorbs the high-temperature moisture through the air hood 503 and discharges it into the dehumidification cover 9. Since the air circulation is carried out inside the dust-proof drying cover 2, dust is intercepted on the side of the cover opening, and the probability of GRG plates being contaminated by dust is reduced;

[0032] When performing movement control, as Figure 3 shown, a control box 6 is installed on the transfer table 1 at the bottom of the dust-proof drying cover 2. A motor is installed inside the control box 6, and a turntable 7 is installed at the end of the motor. The two sides of the turntable 7 are movably connected with swing arms 8. One end of each swing arm 8 is connected to the centering frame 501 inside the dust-proof drying cover 2. Along with the rotation of the motor, the two-sided centering frame 501 is pulled to slide, completing the clamping on both sides of the storage rack 4. Along with the rotation of the conveyor belt 502 on the centering frame 501, the storage rack 4 is synchronously driven to move on the slide rail 3, and the moving speed is controlled by the overall conveyor belt 502. When it is necessary to extend the drying time, the rotation speed of the conveyor belt 502 can be reduced;

[0033] Since the number of dust-proof drying covers 2 can be installed and controlled on the transfer table 1 by itself, the temperature, humidity, and ventilation during the air drying and curing of GRG plates need to be accurately controlled. As the storage time of GRG plates in each dust-proof drying cover 2 increases, the surface curing effect is improved. Relatively speaking, in the air drying method, some dust on the surface of GRG plates will be blown off, resulting in the need for dehumidification operation at the front end of the transfer table 1 for GRG plates, and attention should be paid to the dust in the air during subsequent drying to avoid the influence of dust on the molecular sieve plate 13 installed in the dehumidification cover 9.

[0034] Embodiment 2: When the dehumidification cover 9 installed on the top of the dust-proof drying cover 2 works for a long time, the installed molecular sieve plate 13 reaches the saturated state of moisture absorption. To avoid frequent replacement of the moisture absorption components, as Figure 5 shown, a combined slide rack 12 is installed in the circulation cover 10, and two molecular sieve plates 13 are installed in the combined slide rack 12. The molecular sieve plate 13 is a material with a uniform microporous structure. It can capture molecules through physical adsorption, can effectively adsorb water molecules, and its adsorption capacity can be recycled by heating regeneration. And two molecular sieve plates 13 are used in combination;

[0035] When a single molecular sieve plate 13 intercepts moisture, the other one is in an idle state. When a single molecular sieve plate 13 reaches the saturation state during operation, the position of the entire combined carriage 12 is adjusted, moving the other molecular sieve plate 13 to the working area. At the same time, the saturated molecular sieve plate 13 is heated to remove moisture, enabling subsequent cyclic and alternating use. There is no need to stop the machine to replace the dehumidification material throughout the process, and the air drying and curing of GRG plates continue continuously;

[0036] As Figure 4 shown, on both sides of the flow-through cover 10 installed in the dehumidification cover 9, there are conduction pipes 14, and the conduction pipes 14 are connected to the air guide pipes 504 on both sides. At the same time, the dehumidification cover 9 is separated by the combined carriage 12. The combined carriage 12 is equipped with molecular sieve plates 13. When the moisture is discharged unidirectionally, after being intercepted and filtered by the molecular sieve plates 13, the moisture returns to the blower 11 side and is discharged again from the air guide pipe 504 on the other side through the blower 11, and is discharged along the air hood 503 to the surface of the GRG plates on the storage rack 4;

[0037] The present invention also processes the molecular sieve plate 13 in the saturation state. As Figure 6 shown, a first transmission shaft 18 and a second transmission shaft 19 are respectively movably connected to the inner wall of the bottom of the dehumidification cover 9. At the same time, a limiting cylinder 21 is fixed to the end of the first transmission shaft 18, and a first gear 20 is fixed to the end of the second transmission shaft 19, and the first gear 20 is movably connected to the limiting cylinder 21. The first transmission shaft 18 and the second transmission shaft 19 are independently controlled. A stop block 22 is also fixed to the outer wall of the limiting cylinder 21, and the bottom protrusion of the arc-shaped rack 23 rotatably connected to the inner wall of the dehumidification cover 9 abuts against the outer wall of the limiting cylinder 21. As the limiting cylinder 21 rotates, the stop block 22 on its surface begins to contact the protrusion on the arc-shaped rack 23, causing the entire arc-shaped rack 23 to rotate. The top tooth pattern of the arc-shaped rack 23 contacts the combined carriage 12. As the arc-shaped rack 23 rotates, the combined carriage 12 is translated within the flow-through cover 10, thus realizing the position change of the two molecular sieve plates 13;

[0038] For the molecular sieve plate 13 whose position is switched, in order to accelerate the discharge of moisture on its surface, friction shafts 26 are symmetrically movably arranged at the bottom of the single-side dehumidification box 15. The ends of the friction shafts 26 are provided with cylindrical barrels, and the surface has a large friction coefficient. A sliding sleeve is also slidably connected to the inner wall of the dehumidification cover 9. As Figure 6 shown, a second gear 25 is installed on the sliding sleeve, and the second gear 25 is meshed with the first gear 20 on the second transmission shaft 19. The protrusion on the other side of the arc-shaped rack 23 also contacts the notch on the transmission sliding sleeve 24. As the arc-shaped rack 23 swings, the entire transmission sliding sleeve 24 will also move and begin to contact the single-side friction shaft 26, and the second gear 25 on the transmission sliding sleeve 24 will also slide on the surface of the first gear 20;

[0039] Due to the movement of the transmission sliding sleeve 24, when it contacts the unilateral friction shaft 26, it rotates along with the rotation of the first gear 20. The entire rotating transmission sliding sleeve 24 drives the unilateral friction shaft 26 to rotate, and along with the swinging of the arc-shaped rack 23, it causes the transmission sliding sleeve 24 to contact the other friction shaft 26. At this time, the first gear 20 rotates, thus realizing the rotation of the friction shaft 26 on the other dehumidification box 15;

[0040] Under normal conditions, as Figure 6 shown, if the saturated state molecular sieve plate 13 is just moved to the right dehumidification box 15, and the transmission sliding sleeve 24 contacts the right friction shaft 26 at the same time, along with the second transmission shaft 19 driving the first gear 20 to rotate, the right friction shaft 26 starts to rotate. And as Figure 7 shown, a tooth shaft 27 is also movably connected inside the dehumidification box 15. The end of the tooth shaft 27 extends to the side of the moisture exhaust fan 28. Along with the rotation of the friction shaft 26, it drives the dehumidification fan on this side to rotate, accelerating the air flow on the side of the saturated molecular sieve plate 13, automatically and efficiently discharging the excess moisture on the plate surface, which is beneficial for subsequent recycling, and preventing dust from entering and adhering to the surface of the molecular sieve plate 13. A filter screen 16 is installed on the side of the moisture exhaust port 17 of the dehumidification box 15. And because the dehumidification box 15 is located inside the entire dust-proof drying cover 2, the amount of dehumidified dust is less in the early stage. Through the installation of the movable molecular sieve plate 13, the high-temperature water vapor intercepted can be reused through the blower 11, and the waste heat of the exhaust gas is recycled to reduce the overall energy consumption.

[0041] The working principle of the present invention:

[0042] Plate conveying and fixing: GRG plates are placed on the storage rack in layers. The centering frame of the clamping and transmission mechanism synchronously clamps the plates under the drive of the control box. The conveyor belt drives the storage rack to move at a constant speed, ensuring that the plates are evenly heated and move to the observation cover through the slide rail. A humidity sensor is installed inside the observation cover, which feeds back data to the control box in real time to adjust the power of the blower, the speed of the conveyor belt and the heating temperature, realizing dynamic temperature and humidity control;

[0043] Hot air circulation drying: The blower heats the air through the heating network group, and forms a circulating air flow through the air duct and the circulation cover, directly blowing on the surface of the plate to accelerate the evaporation of moisture. The moisture enters the dehumidification cover with the air flow, and the molecular sieve plate adsorbs the water molecules. The dried hot air re-enters the circulation system, reducing heat energy waste;

[0044] Regeneration and switching of the molecular sieve plate: When a molecular sieve plate absorbs moisture and becomes saturated, the first transmission shaft drives the arc-shaped rack to rotate, pushing the combined sliding frame to translate, switching to the standby molecular sieve plate. The saturated molecular sieve plate moves into the dehumidification box, and the friction shaft drives the moisture exhaust fan to accelerate the air flow, accelerating the discharge of the moisture on the plate surface, and discharging it from the moisture exhaust port out of the system.

[0045] The above content is only an example and illustration of the structure of the present invention. Those skilled in the art of this technology can make various modifications, supplements, or use similar methods to replace the specific embodiments described, as long as they do not deviate from the structure of the invention or exceed the scope defined by this claim book, they should all fall within the protection scope of the present invention.

[0046] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0047] The above-disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art of this technology can understand and utilize the present invention well. The present invention is only limited by the claim book and its full scope and equivalents.

Claims

1. A dustproof air-drying and curing device for GRG sheet forming, comprising a conveying platform (1) and a dustproof drying cover (2), wherein the dustproof drying cover (2) is symmetrically installed on the top of the conveying platform (1), and an observation cover is installed between the two dustproof drying covers (2), characterized in that: A slide rail (3) is installed on the transmission platform (1) and is located inside the dustproof drying cover (2); a storage rack (4) is slidably connected to the top of the slide rail (3); and a clamping transmission mechanism (5) is symmetrically slidably connected to both sides of the slide rail (3) inside the dustproof drying cover (2); The clamping transmission mechanism (5) comprises a centering frame (501) and an air hood (503); the centering frame (501) is symmetrically slidably connected inside the dustproof drying cover (2); the air hood (503) is fixedly connected inside the centering frame (501); the top of the air hood (503) is connected to an air guide pipe (504); and a conveyor belt (502) is installed on the centering frame (501); A dehumidification hood (9) is installed on the top of the dustproof drying hood (2), and a circulation hood (10) is installed in the dehumidification hood (9). Conducting pipes (14) are opened on both sides of the circulation hood (10). The conducting pipe (14) on one side is connected to the air conducting pipe (504) on the centering frame (501) on one side, and the conducting pipe (14) on the other side is connected to the air conducting pipe (504) on the centering frame (501) on the other side. A combined slide frame (12) is slidably connected in the dehumidification hood (9), and a molecular sieve plate (13) is installed on the combined slide frame (12).

2. The dust-proof air-drying and curing equipment for GRG sheet forming according to claim 1 is characterized in that: A control box (6) is fixed to the bottom of the transmission platform (1) by bolts, a turntable (7) is movably connected inside the control box (6), and rotating arms (8) are rotatably connected to the two sides of the top of the turntable (7), one side of the rotating arm (8) passes through the notch at the top of the transmission platform (1) and is movably connected to the centering frames (501) on both sides.

3. The dust-proof air-drying and curing equipment for GRG sheet forming according to claim 2 is characterized in that: Dehumidification boxes (15) are symmetrically fixed on both sides of the circulation cover (10), and dehumidification ports (17) are symmetrically opened on both sides of the dehumidification box (15). A filter screen (16) is installed on the dehumidification port (17) on one side, and the dehumidification port (17) on the other side passes through the dehumidification cover (9).

4. The dust-proof air-drying and curing equipment for GRG sheet forming according to claim 3 is characterized in that: The inner wall at the bottom of the dehumidification cover (9) is movably connected to a transmission shaft 1 (18) and a transmission shaft 2 (19); the end of the transmission shaft 1 (18) is fixedly connected to a limiting cylinder (21); the end of the transmission shaft 2 (19) is sleeved and fixed with a gear 1 (20); the limiting cylinder (21) and the gear 1 (20) are movably abutted via a bearing.

5. The dust-proof air-drying and curing equipment for GRG sheet forming according to claim 4 is characterized in that: The inner wall at the bottom of the dehumidification cover (9) is movably connected with an arc-shaped gear rod (23), the top of the arc-shaped gear rod (23) is meshingly connected with a combined slide (12) installed in the circulation cover (10), a stopper (22) is fixed to the outer wall of the limiting cylinder (21), and a protrusion on the side wall of the arc-shaped gear rod (23) abuts against the outer wall of the limiting cylinder (21).

6. The dust-proof air-drying and curing equipment for GRG sheet forming according to claim 5 is characterized in that: The side wall of the dehumidification box (15) on one side is symmetrically and movably connected with a friction shaft (26), and the inner wall of the dehumidification cover (9) is slidably connected with a transmission sleeve (24), and a gear 2 (25) is fixedly mounted on the transmission sleeve (24), and the gear 2 (25) is meshingly connected with the gear 1 (20), and the protrusion on the other side of the arc-shaped gear rod (23) is in contact with the groove on the transmission sleeve (24).

7. The dust-proof air-drying and curing equipment for GRG sheet forming according to claim 6 is characterized in that: A gear shaft (27) is movably connected in one side of the dehumidification box (15), and a dehumidification fan (28) is movably connected in one side of the dehumidification box (15) through a bracket. The gear shaft (27) is meshingly connected with the axial gear of the dehumidification fan (28) on one side, and one end of the friction shaft (26) passes through the dehumidification box (15) and is meshingly connected with the gear shaft (27) through a gear.

8. The dust-proof air-drying and curing equipment for GRG sheet forming according to claim 7 is characterized in that: A blower (11) is installed in the circulation hood (10), and a heating net group is installed in the circulation hood (10) and on the side of the blower (11).

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