A baking device for reducing defects in polyimide glass coating

Abstract

The invention relates to the technical field of baking equipment, and discloses a baking device for reducing defects in polyimide glass coating, comprising a frame, wherein a conveying mechanism for conveying a glass plate is arranged inside the frame, a baking box is arranged in the middle of the frame, a humidifying box and a dust removing box are respectively fixedly installed on both sides of the top of the baking box, a first fan is installed on the top of the dust removing box, a second fan is installed on the top of the humidifying box, and an air outlet end of the first fan is connected with an air inlet end of the second fan through an air supply pipe; the invention arranges the dust removing box and the humidifying box, so that when air passes through the dust removing box, the dust removing mechanism in the dust removing box can remove particulate impurities in the air, and when air passes through the humidifying box, the humidifying mechanism in the humidifying box can humidify the air, so as to increase the humidity of the air entering the baking box, and as the humidity in the baking box increases, static electricity can be effectively prevented from being generated on the glass plate.

Description

Technical Field

[0001] The invention relates to the technical field of baking equipment, in particular to a baking device for reducing defects of polyimide glass coating. Background Art

[0002] Polyimide is a high-performance polymer material with excellent heat resistance, chemical resistance, wear resistance and weather resistance. By coating polyimide on the glass surface and heating it under high temperature and high pressure conditions, a polyimide film layer with high strength, high hardness, high transparency and high wear resistance can be formed on the glass surface, thereby improving the impact resistance and durability of the glass.

[0003] Chinese patent CN220892850U discloses a glass baking device, including a chassis and a control system, wherein the chassis is divided into a purification space and a baking space by a partition; a roller conveyor belt is arranged across the purification space and the baking space, and the roller conveyor belt is driven by a drive motor; a conveyor belt cleaning structure is arranged across the purification space and the baking space and below the roller conveyor belt; the conveyor belt cleaning structure includes a first linear slide, a first rotary drive motor, a cross mounting seat, four second rotary drive motors, and four cleaning rollers; the conveyor rollers can be automatically cleaned to effectively prevent impurities from adhering to the glass surface during the baking process, and an infrared heating structure and an electric conductive wire heating structure are arranged to cooperate to improve the controllability of the temperature, thereby ensuring the baking quality of the glass.

[0004] During the baking process of the polyimide glass coating, if static electricity exists, it may attract dust and impurities in the air. These tiny particles will adhere to the surface of the coating, causing the coating to be uneven, granular or have other surface defects. In the baking equipment, during the baking process, some solid particles in the coating material are easily dissipated into the oven with the airflow. As these solid particles rub against the glass surface, the glass is prone to static electricity. The oven is usually dry and is also prone to static electricity. As shown in the above patent, it is usually difficult to avoid the generation of static electricity in existing baking equipment, which makes the coating prone to defects.

[0005] Therefore, it is necessary to provide a baking device for reducing defects in polyimide glass coating to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a baking device for reducing defects of polyimide glass coating, which can avoid the generation of static electricity and effectively improve the coating quality.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a baking device for reducing defects in polyimide glass coating, comprising a frame, a conveying mechanism for conveying glass plates is arranged inside the frame, a baking box is arranged in the middle of the frame, a humidifying box and a dust removal box are fixedly installed on both sides of the top of the baking box, a first fan is installed on the top of the dust removal box, a second fan is installed on the top of the humidifying box, an air outlet end of the first fan is connected with an air inlet end of the second fan through an air supply pipe, the air inlet end of the first fan is connected with the humidifying box, and the air outlet end of the second fan is connected with the humidifying box, a humidifying mechanism is arranged on the humidifying box, a dust removal mechanism is arranged in the dust removal box, an air outlet box is connected at the bottom end of the humidifying box, an air suction box is connected at the bottom end of the dust removal box, the air outlet box and the air suction box are both arranged in the baking box, and the air outlet box and the air suction box are arranged opposite to each other.

[0008] The present invention is further configured as follows: the humidifying mechanism comprises a humidifier, the humidifier is fixedly mounted on one side of the humidifying box, the humidifier is provided with a spray nozzle, and the spray nozzle extends into the humidifying box.

[0009] The present invention is further configured as follows: the dust removal mechanism includes a filter belt, a second motor and two drive rollers, the two drive rollers are rotatably installed on both sides of the inner cavity of the dust removal box, the filter belt is jointly sleeved on the two drive rollers, the filter belt is a porous mesh structure, a second roller shaft is fixedly provided at the end of the drive roller, the second motor is fixedly installed on the side wall of the dust removal box, the output end of the second motor is drivingly connected to one of the second roller shafts, a scraper is fixedly installed in the dust removal box, and the top of the scraper is in contact with the bottom of the filter belt.

[0010] The present invention is further configured as follows: a refrigeration component is fixedly installed on one side of the dust removal box, two conduction plates are connected to the refrigeration end of the refrigeration component, one end of the conduction plate is connected to a conduction ring, the second roller passes through the conduction ring, the outer peripheral wall of the second roller is in contact with the inner peripheral wall of the conduction ring, and the second roller rotates in coordination with the conduction ring.

[0011] The present invention is further configured as follows: a first adjusting roller and a second adjusting roller are arranged in the middle of the inner cavity of the dust removal box, the first adjusting roller is located directly below the second adjusting roller, the first adjusting roller is located on the inner side of the filter belt, and the second adjusting roller is located above the filter belt, and the first adjusting roller and the second adjusting roller squeeze the filter belt into a V shape.

[0012] The present invention is further configured as follows: both ends of the first adjusting roller are rotatably connected with a first slider, the first slider is respectively slidably connected to the two opposite inner walls of the dust removal box, the bottom end of the first slider is connected to a first spring, the bottom end of the first spring is fixedly connected to the dust removal box, both ends of the second adjusting roller are rotatably connected with a second slider, the second slider is respectively slidably connected to the two opposite inner walls of the dust removal box, the top end of the second slider is connected to a second spring, and the top end of the second spring is fixedly connected to the dust removal box.

[0013] The present invention is further configured as follows: a rotating shaft is arranged above the first slider, the rotating shaft passes through the side wall of the dust removal box, the rotating shaft is rotatably connected to the dust removal box, a cam is fixedly mounted on the rotating shaft, the cam is fitted with the top wall of the first slider, one end of the rotating shaft extending out of the dust removal box is fixedly mounted with a driven wheel, one end of one of the second roller shafts extends out of the dust removal box and is fixedly mounted with a driving wheel, and the driving wheel and the driven wheel are connected by a transmission belt.

[0014] The present invention is further configured as follows: a receiving box is provided on one side of the scraper, the top of the receiving box is open, a blowing assembly is provided on the inner side of the filter belt, the output end of the blowing assembly is arranged toward the top opening of the receiving box, the bottom end of the receiving box is connected to a junction box, the outlet of the junction box is connected to an inclined pipe, the inclined pipe is obliquely arranged in the suction box, the bottom end of the inclined pipe is connected to a vertical pipe, and the bottom end of the vertical pipe extends into the bottom of the inner cavity of the suction box.

[0015] The present invention is further configured as follows: the blowing assembly includes a cylinder, an air pump and an air nozzle, the cylinder is fixedly installed inside the dust removal box, the cylinder is located on the inner side of the filter belt, the air pump is fixedly installed on one side of the cylinder, the air outlet end of the air pump extends into the bottom of the inner cavity of the cylinder, the bottom end of the cylinder is connected to the air supply channel and is provided with an air nozzle, the air outlet end of the air nozzle is arranged toward the top opening of the receiving box, a piston is slidably installed in the cylinder, the piston is elastically connected to the top wall of the cylinder through a third spring, and a pressure valve is provided in the air supply channel.

[0016] The present invention is further configured as follows: the conveying mechanism includes a plurality of conveying rollers, the plurality of conveying rollers are arranged parallel to each other, first roller shafts are fixedly arranged at both ends of the plurality of conveying rollers, the first roller shafts are rotatably connected to the frame, two adjacent first roller shafts are connected by belt and pulley transmission, a first motor is fixedly installed on the frame, and the output end of the first motor is transmission connected to one of the first roller shafts.

[0017] In summary, the present invention has the following beneficial effects: the present invention arranges a dust removal box and a humidifying box, so that when the air passes through the dust removal box, the dust removal mechanism in the dust removal box can remove particulate impurities in the air; when the air passes through the humidifying box, the humidifying mechanism in the humidifying box can humidify the air to increase the humidity of the air entering the baking oven. As the humidity in the baking oven increases, static electricity on the glass plate can be effectively prevented, and the arrangement of the dust removal mechanism can reduce the content of particulate impurities in the baking oven. On the one hand, static electricity generated by friction between the particulate impurities and the glass plate can be avoided; on the other hand, defects caused by the attachment of particulate impurities to the polyimide coating can be avoided, thereby effectively improving the coating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the dust removal box, the humidification box and the air delivery pipe of the present invention;

[0021] Figure 4 It is a schematic diagram of the front cross-sectional structure of the dust removal box of the present invention;

[0022] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at point A;

[0023] Figure 6 It is a schematic diagram of a top cross-sectional structure of a dust removal box of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the dust removal mechanism of the present invention;

[0025] Figure 8 It is a schematic diagram of the top view of the structure of the receiving box, the junction box, the inclined pipe and the vertical pipe of the present invention;

[0026] Fig. 9 It is a schematic diagram of the main cross-sectional structure of the humidification box of the present invention;

[0027] Fig.10 It is a schematic diagram of the front cross-sectional structure of the air blowing assembly of the present invention.

[0028] In the figure: 1, frame; 2, baking box; 3, conveyor roller; 4, first roller shaft; 5, pulley; 6, belt; 7, dust removal box; 8, humidification box; 9, first fan; 10, second fan; 11, air duct; 12, humidifier; 1201, spray nozzle; 13, first motor; 14, air suction box; 15, air outlet box; 16, second motor; 17, driving roller; 18, filter belt; 19, first adjusting roller; 20, first slider; 21, first spring; 22, second adjusting roller; 23, The second spring; 24, the second slider; 25, the second roller; 26, the conduction ring; 27, the conduction plate; 28, the rotating shaft; 29, the cam; 30, the driven wheel; 31, the transmission belt; 32, the driving wheel; 33, the sewage pipe; 34, the scraper; 35, the receiving box; 36, the junction box; 37, the inclined pipe; 38, the vertical pipe; 39, the electric heating pipe; 40, the cylinder; 41, the air nozzle; 42, the air pump; 43, the piston; 44, the third spring; 45, the gas transmission channel; 46, the pressure valve; 47, the refrigeration component. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] See also Figures 1 to 3In an embodiment of the present invention, a baking device for reducing defects in polyimide glass coating includes a frame 1, wherein a conveying mechanism for conveying a glass plate is disposed inside the frame 1, a baking box 2 is disposed in the middle of the frame 1, and a heating mechanism is disposed in the baking box 2. The heating mechanism can realize the heating function by means of electric heating wire heating, infrared heating, etc. The heating mechanism is a prior art and is not described in detail herein. A humidity sensor is disposed in the baking box 2 to monitor the humidity in the baking box 2. A humidifying box 8 and a dust removal box 7 are fixedly installed on both sides of the top of the baking box 2, respectively. A first fan 9 is installed on the top of the dust removal box 7, and a second fan 10 is installed on the top of the humidifying box 8. The air outlet end of the fan 9 is connected to the air inlet end of the second fan 10 through the air delivery pipe 11, the air inlet end of the first fan 9 is connected to the humidification box 8, and the air outlet end of the second fan 10 is connected to the humidification box 8. The humidification box 8 is provided with a humidifying mechanism, and the dust removal box 7 is provided with a dust removal mechanism. The bottom end of the humidification box 8 is connected to an air outlet box 15, and the bottom end of the dust removal box 7 is connected to an air suction box 14. The air outlet box 15 and the air suction box 14 are both arranged in the baking oven 2, and the air outlet box 15 is arranged opposite to the air suction box 14. The air outlet box 15 and the air suction box 14 are both provided with through grooves on the opposite side walls, so that the air outlet box 15 inputs the gas into the baking oven 2 through the through grooves, and then passes through the through grooves. The air in the baking oven 2 is sucked into the dust removal box 7 through the suction box 14, and then the air is input into the air inlet end of the second fan 10 through the first fan 9 and the air delivery pipe 11, and then the air is input into the air outlet box 15 through the humidifying box 8, and then the air is input into the baking oven 2. When the air passes through the dust removal box 7, the air is removed by the dust removal mechanism in the dust removal box 7. When the air passes through the humidifying box 8, the humidifying mechanism in the humidifying box 8 can humidify the air to increase the humidity of the air entering the baking oven 2. As the humidity in the baking oven 2 increases, static electricity on the glass plate can be effectively prevented. The setting of the dust removal mechanism can reduce the content of particulate impurities in the baking oven 2. On the one hand, static electricity can be generated by friction between the particulate impurities and the glass plate. On the other hand, defects caused by the adhesion of particulate impurities to the polyimide coating can be avoided, thereby effectively improving the coating quality. When in use, the conveying speed of the conveying mechanism can also be reduced, so that the relative speed between the glass plate and the particulate matter is reduced, further reducing the probability of static electricity generation.

[0031] In the present embodiment, preferably, the conveying mechanism comprises a plurality of conveying rollers 3, the plurality of conveying rollers 3 are arranged parallel to each other, first roller shafts 4 are fixedly arranged at both ends of the plurality of conveying rollers 3, the first roller shafts 4 are rotatably connected to the frame 1, two adjacent first roller shafts 4 are transmission connected via a belt 6 and a pulley 5, a first motor 13 is fixedly mounted on the frame 1, an output end of the first motor 13 is transmission connected to one of the first roller shafts 4; the first motor 13 can drive one of the first roller shafts 4 to rotate, and when the first roller shaft 4 rotates, the adjacent first roller shafts 4 are driven to rotate via the belt 6 and the pulley 5, so that all the first roller shafts 4 rotate synchronously, and when the first roller shaft 4 rotates, the conveying rollers 3 are driven to rotate, and when a glass plate is placed on the conveying rollers 3, the glass plate can be conveyed as the conveying rollers 3 rotate.

[0032] In this embodiment, preferably, refer to Fig. 9 The humidifying mechanism includes a humidifier 12, which is fixedly mounted on one side of the humidifying box 8. The humidifier 12 is provided with a spray nozzle 1201, and the spray nozzle 1201 extends into the humidifying box 8; the humidifying box 8 is provided with an electric heating tube 39, so that the air entering the air outlet box 15 can be heated to avoid the temperature of the air entering the baking box 2 being too low; the humidifier 12 can spray into the humidifying box 8 through the spray nozzle 1201, thereby humidifying the air in the humidifying box 8, and the humidified air follows the air flow into the baking box 2, thereby humidifying the air in the baking box 2 to avoid static electricity on the glass plate.

[0033] See also Figures 4 to 7 In the embodiment of the present invention, the dust removal mechanism includes a filter belt 18, a second motor 16 and two driving rollers 17, the two driving rollers 17 are rotatably installed on both sides of the inner cavity of the dust removal box 7, and the filter belt 18 is collectively mounted on the two driving rollers 17, so that when the two driving rollers 17 rotate, the filter belt 18 can be driven to rotate, the filter belt 18 is a porous mesh structure, and the filter belt 18 is made of flexible metal wires, such as copper wires. A second roller shaft 25 is fixedly provided at the end of the driving roller 17, and the second motor 16 is fixedly installed on the side wall of the dust removal box 7. The output end of the second motor 16 is transmission-connected with one of the second roller shafts 25, so that the second motor 16 can drive the driving roller 17 to rotate through the second roller shaft 25, thereby driving the filter belt 18 to rotate. A scraper 34 is fixedly installed in the dust removal box 7, and the top of the scraper 34 is in contact with the bottom of the filter belt 18, so that when the filter belt 18 rotates, the particulate impurities attached to the filter belt 18 can be scraped off.

[0034] In this embodiment, preferably, a refrigeration component 47 is fixedly installed on one side of the dust removal box 7. The refrigeration component 47 can achieve refrigeration by using a semiconductor refrigeration sheet or the like. Two conduction plates 27 are connected to the refrigeration end of the refrigeration component 47. One end of the conduction plate 27 is connected to a conduction ring 26. The second roller 25 passes through the conduction ring 26. The outer peripheral wall of the second roller 25 fits the inner peripheral wall of the conduction ring 26, and the second roller 25 and the conduction ring 26 rotate in cooperation. The second roller 25, the driving roller 17, the conduction plate 27 and the conduction ring 26 are all made of high thermal conductivity materials. Under the effect of cold, the temperature of the conduction ring 26 is reduced through the conduction plate 27, thereby reducing the temperature of the second roller 25 and the driving roller 17. The rotation of the filter belt 18 reduces the overall temperature of the filter belt 18, so that when the gas in the baking oven 2 flows back to the dust removal box 7, condensation water can be formed on the filter belt 18. When the condensation water adheres to the filter belt 18, particulate impurities can be adsorbed on the condensation water, so that some particulate impurities with a particle size smaller than the aperture of the filter belt 18 can also be filtered out. The condensation of the condensation water makes the subsequent scraper 34 better at scraping off impurities on the filter belt 18.

[0035] See also Figures 4 to 7 In the embodiment of the present invention, a first adjusting roller 19 and a second adjusting roller 22 are provided in the middle of the inner cavity of the dust removal box 7, the first adjusting roller 19 is located directly below the second adjusting roller 22, the first adjusting roller 19 is located on the inner side of the filter belt 18, and the second adjusting roller 22 is located above the filter belt 18. The first adjusting roller 19 and the second adjusting roller 22 squeeze the filter belt 18 into a V shape, and both ends of the first adjusting roller 19 are rotatably connected with a first slider 20, and the first slider 20 is respectively slidably connected to the two opposite inner side walls of the dust removal box 7, and the bottom end of the first slider 20 is connected to a first spring 21, and the bottom end of the first spring 21 is fixedly connected to the dust removal box 7, and the second adjusting roller 2 2 are rotatably connected with second sliders 24 at both ends, and the second sliders 24 are respectively slidably connected with the two opposite inner walls of the dust removal box 7, and the top of the second slider 24 is connected with a second spring 23, and the top of the second spring 23 is fixedly connected with the dust removal box 7; through the arrangement of the first adjusting roller 19 and the second adjusting roller 22, the filter belt 18 can be squeezed into a V shape, so that the condensed water can flow toward the concave position in the middle of the filter belt 18, so that the condensed water gathers together and drips downward; the bottom end of the suction box 14 is connected with a drain pipe 33, and the drain pipe 33 runs through the side wall of the baking oven 2, so that the sewage condensed and adsorbed with particulate impurities can be discharged through the drain pipe 33.

[0036] In this embodiment, preferably, a rotating shaft 28 is arranged above the first slider 20, and the rotating shaft 28 passes through the side wall of the dust removal box 7. The rotating shaft 28 is rotatably connected to the dust removal box 7. A cam 29 is fixedly sleeved on the rotating shaft 28, and the cam 29 is in contact with the top wall of the first slider 20. One end of the rotating shaft 28 extending out of the dust removal box 7 is fixedly sleeved with a driven wheel 30, and one end of one of the second roller shafts 25 extends out of the dust removal box 7 and is fixedly sleeved with a driving wheel 32, and the driving wheel 32 and the driven wheel 30 are connected through a transmission belt 31; when the second roller shaft 25 rotates, the second roller shaft 25 can drive the driving wheel 32 to rotate, thereby driving the driven wheel 30 through the transmission belt 31. When the driven wheel 30 rotates, the cam 29 is driven to rotate through the rotating shaft 28, thereby driving the first slider 20 to move back and forth up and down. When the first slider 20 moves back and forth up and down, it can drive the filter belt 18 to vibrate, so that the condensed water condensed on the filter belt 18 is more likely to flow toward the concave position in the middle of the filter belt 18 and drip, so as to prevent a lot of condensed water from condensing on the filter belt 18 and affecting the passage of gas; through the arrangement of the first spring 21, the second spring 23, the first slider 20 and the second slider 24, when the filter belt 18 vibrates, the positions of the first adjusting roller 19 and the second adjusting roller 22 can be adaptively adjusted, so as to prevent the filter belt 18 from being too tight during vibration and affecting its service life.

[0037] See also Figure 4 , Figure 5 and Figure 8 In the embodiment of the present invention, a receiving box 35 is provided on one side of the scraper 34, and the top of the receiving box 35 is open. A blast assembly is provided on the inner side of the filter belt 18, and the output end of the blast assembly is arranged toward the top opening of the receiving box 35. The bottom end of the receiving box 35 is connected to a junction box 36, and the junction box 36 is a triangular structure. The outlet of the junction box 36 is connected to an inclined pipe 37, and the inclined pipe 37 is obliquely arranged in the air suction box 14. The bottom end of the inclined pipe 37 is connected to a vertical pipe 38, and the bottom end of the vertical pipe 38 extends into the bottom of the inner cavity of the air suction box 14; the particulate impurities scraped off by the scraper 34 can enter The receiving box 35 is inside, and through the setting of the blowing assembly, a high-speed airflow can be blown toward the receiving box 35. Under the action of the high-speed airflow, the condensed water and particulate impurities blocked in the mesh of the filter belt 18 can be flushed out and enter the receiving box 35. Under the action of the high-speed airflow, they pass through the junction box 36 and the inclined pipe 37 in sequence and enter the vertical pipe 38, so as to be discharged to the bottom of the inner cavity of the suction box 14, and then discharged through the drain pipe 33, so that the scraped particulate impurities can be input into the drain pipe 33 through the above-mentioned conveying structure. Compared with the natural falling of the particulate impurities, it can effectively prevent the rising airflow in the suction box 14 from continuing to lift the particulate impurities upward.

[0038] In this embodiment, preferably, refer to Fig.10The blast assembly includes a cylinder 40, an air pump 42 and an air nozzle 41. The cylinder 40 is fixedly installed inside the dust removal box 7. The cylinder 40 is located on the inner side of the filter belt 18. The air pump 42 is fixedly installed on one side of the cylinder 40. The air outlet end of the air pump 42 extends into the bottom of the inner cavity of the cylinder 40. The bottom end of the cylinder 40 is connected to the air nozzle 41 through an air delivery channel 45. The air outlet end of the air nozzle 41 is arranged toward the top opening of the receiving box 35. A piston 43 is slidably installed in the cylinder 40. The piston 43 is elastically connected to the top wall of the cylinder 40 through a third spring 44. A pressure spring is arranged in the air delivery channel 45. Valve 46; through the setting of the pressure valve 46, the piston 43 and the third spring 44, when the air pump 42 inputs gas into the cylinder 40, the piston 43 first compresses the third spring 44 and moves upward. With the injection of gas, the air pressure in the cylinder 40 gradually increases. When the air pressure reaches the threshold of the pressure valve 46, the pressure valve 46 opens, and the piston 43 moves downward to input the gas in the cylinder 40 into the air nozzle 41. The gas is ejected at high speed through the air nozzle 41, thereby flushing out the condensed water and particulate impurities blocked in the mesh of the filter belt 18; through the setting of the above structure, a high-speed airflow can be generated to improve the cleaning effect of the filter belt 18.

[0039] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A baking device for reducing defects in polyimide glass coating, comprising a frame (1), a conveying mechanism for conveying a glass plate is arranged inside the frame (1), a baking oven (2) is arranged in the middle of the frame (1), and is characterized in that: A humidifying box (8) and a dust removal box (7) are fixedly mounted on both sides of the top of the baking box (2), a first fan (9) is mounted on the top of the dust removal box (7), a second fan (10) is mounted on the top of the humidifying box (8), an air outlet of the first fan (9) is connected to an air inlet of the second fan (10) via an air delivery pipe (11), the air inlet of the first fan (9) is connected to the humidifying box (8), and the second fan (10) is connected to the humidifying box (8). The air outlet end is connected to the humidifying box (8), the humidifying box (8) is provided with a humidifying mechanism, the dust removal box (7) is provided with a dust removal mechanism, the bottom end of the humidifying box (8) is connected to an air outlet box (15), the bottom end of the dust removal box (7) is connected to an air suction box (14), the air outlet box (15) and the air suction box (14) are both arranged in the baking box (2), and the air outlet box (15) and the air suction box (14) are arranged opposite to each other; The dust removal mechanism comprises a filter belt (18), a second motor (16) and two drive rollers (17), the two drive rollers (17) being rotatably mounted on two sides of an inner cavity of a dust removal box (7), the filter belt (18) being sleeved on the two drive rollers (17), the filter belt (18) being a porous mesh structure, a second roller shaft (25) being fixedly arranged at the end of the drive roller (17), the second motor (16) being fixedly mounted on a side wall of the dust removal box (7), the output end of the second motor (16) being transmission-connected to one of the second roller shafts (25), a scraper (34) being fixedly mounted in the dust removal box (7), the top end of the scraper (34) being in contact with the bottom of the filter belt (18); A refrigeration assembly (47) is fixedly mounted on one side of the dust removal box (7); a refrigeration end of the refrigeration assembly (47) is connected to two conduction plates (27); one end of the conduction plate (27) is connected to a conduction ring (26); the second roller (25) passes through the conduction ring (26); the outer peripheral wall of the second roller (25) is in contact with the inner peripheral wall of the conduction ring (26); and the second roller (25) and the conduction ring (26) are rotatably matched.

2. A baking device for reducing defects in polyimide glass coating according to claim 1, characterized in that: The humidifying mechanism comprises a humidifier (12), wherein the humidifier (12) is fixedly mounted on one side of a humidifying box (8), and a spray nozzle (1201) is provided on the humidifier (12), and the spray nozzle (1201) extends into the humidifying box (8).

3. A baking device for reducing defects in polyimide glass coating according to claim 1, characterized in that: A first adjusting roller (19) and a second adjusting roller (22) are arranged in the middle of the inner cavity of the dust removal box (7); the first adjusting roller (19) is located directly below the second adjusting roller (22); the first adjusting roller (19) is located on the inner side of the filter belt (18); the second adjusting roller (22) is located above the filter belt (18); the first adjusting roller (19) and the second adjusting roller (22) squeeze the filter belt (18) into a V-shape.

4. A baking device for reducing defects in polyimide glass coating according to claim 3, characterized in that: Both ends of the first adjusting roller (19) are rotatably connected to first sliders (20), the first sliders (20) are respectively slidably connected to two opposite inner side walls of the dust removal box (7), the bottom end of the first slider (20) is connected to a first spring (21), the bottom end of the first spring (21) is fixedly connected to the dust removal box (7), both ends of the second adjusting roller (22) are rotatably connected to second sliders (24), the second sliders (24) are respectively slidably connected to two opposite inner side walls of the dust removal box (7), the top end of the second slider (24) is connected to a second spring (23), the top end of the second spring (23) is fixedly connected to the dust removal box (7).

5. A baking device for reducing defects in polyimide glass coating according to claim 4, characterized in that: A rotating shaft (28) is arranged above the first slider (20), the rotating shaft (28) passing through the side wall of the dust removal box (7), the rotating shaft (28) being rotatably connected to the dust removal box (7), a cam (29) being fixedly sleeved on the rotating shaft (28), the cam (29) being in contact with the top wall of the first slider (20), one end of the rotating shaft (28) extending out of the dust removal box (7) being fixedly sleeved with a driven wheel (30), one end of one of the second roller shafts (25) extending out of the dust removal box (7) and being fixedly sleeved with a driving wheel (32), the driving wheel (32) and the driven wheel (30) being connected by a transmission belt (31).

6. A baking device for reducing defects in polyimide glass coating according to claim 1, characterized in that: A receiving box (35) is provided on one side of the scraper (34), the top of the receiving box (35) is open, an air blowing assembly is provided on the inner side of the filter belt (18), the output end of the air blowing assembly is arranged toward the top opening of the receiving box (35), the bottom end of the receiving box (35) is connected to a junction box (36), the outlet of the junction box (36) is connected to an inclined pipe (37), the inclined pipe (37) is obliquely arranged in the air suction box (14), the bottom end of the inclined pipe (37) is connected to a vertical pipe (38), the bottom end of the vertical pipe (38) extends into the bottom of the inner cavity of the air suction box (14).

7. A baking device for reducing defects in polyimide glass coating according to claim 6, characterized in that: The air blowing assembly comprises a cylinder (40), an air pump (42) and an air nozzle (41); the cylinder (40) is fixedly mounted inside the dust removal box (7); the cylinder (40) is located inside the filter belt (18); the air pump (42) is fixedly mounted on one side of the cylinder (40); an air outlet end of the air pump (42) extends into the bottom of the inner cavity of the cylinder (40); the bottom end of the cylinder (40) is connected to the air nozzle (41) via an air delivery channel (45); the air outlet end of the air nozzle (41) is arranged toward the top opening of the receiving box (35); a piston (43) is slidably mounted inside the cylinder (40); the piston (43) is elastically connected to the top wall of the cylinder (40) via a third spring (44); and a pressure valve (46) is arranged inside the air delivery channel (45).

8. The baking device for reducing defects in polyimide glass coating according to claim 1, characterized in that: The conveying mechanism comprises a plurality of conveying rollers (3), the plurality of conveying rollers (3) are arranged parallel to each other, first roller shafts (4) are fixedly arranged at both ends of the plurality of conveying rollers (3), the first roller shafts (4) are rotatably connected to the frame (1), two adjacent first roller shafts (4) are transmission-connected via a belt (6) and a pulley (5), a first motor (13) is fixedly mounted on the frame (1), and an output end of the first motor (13) is transmission-connected to one of the first roller shafts (4).

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