A drying device for producing photosensitive dry films

Abstract

The present application relates to the technical field of photosensitive dry film production, and particularly relates to a drying device for photosensitive dry film production, five chambers are sequentially arranged in the shell from left to right, and the five chambers are respectively a preheating chamber, a wetting chamber, a drying chamber, a cooling chamber and a winding chamber, wherein the temperatures in the preheating chamber, the wetting chamber and the drying chamber are sequentially increased, and the cooling chamber is provided with a cooling assembly for cooling the photosensitive dry film, and the five chambers in the shell are all provided with guide rollers for guiding the photosensitive dry film, so that the photosensitive dry film gradually moves from the preheating chamber to the cooling chamber in a predetermined direction, and is wound by a winding device arranged in the winding chamber. The present application is provided with the preheating chamber, the wetting chamber and the drying chamber, and through the multi-stage processing mode, the drying effect can be effectively improved, and the photosensitive dry film is prevented from being warped or deformed due to the fact that the water on the surface volatilizes too fast, and the water in the film layer volatilizes too slowly during the high-temperature drying process.

Description

TECHNICAL FIELD

[0001] The application relates to the production technology of photosensitive dry films, in particular to a drying device for photosensitive dry film production. BACKGROUND

[0002] The photosensitive dry film is generally composed of photosensitive resin, filler, plasticizer and other chemical additives. The photosensitive dry film has the advantages of photosensitivity, flexibility and corrosion resistance, and can maintain the stability of the circuit in harsh environments such as high frequency, high temperature and strong corrosion, so the photosensitive dry film is widely used in the production of electronic products such as printed circuit boards and flexible circuit boards.

[0003] After the photosensitive dry film is coated, it needs to be dried to remove the solvent and ensure the curing and dryness of the film layer. However, in the existing drying process, the solvent on the surface of the photosensitive dry film volatilizes quickly, while the solvent in the film layer volatilizes slowly due to factors such as high density and poor conduction. If the surface of the film dries too quickly, a dry skin will form on the outside of the film, and the internal solvent will not be able to volatilize in time, which may cause stress accumulation in the film layer and even cause the film layer to warp or deform. Therefore, the application provides a drying device for photosensitive dry film production to solve the above technical problems. SUMMARY

[0004] In order to overcome the technical problems in the background art, the application provides a drying device for photosensitive dry film production.

[0005] The technical scheme is as follows: a drying device for photosensitive dry film production, comprising a shell, five chambers are arranged in the shell from left to right, which are preheating chamber, wetting chamber, drying chamber, cooling chamber and winding chamber, wherein the temperatures in the preheating chamber, wetting chamber and drying chamber increase in turn, and the cooling assembly for cooling the photosensitive dry film is installed in the cooling chamber, the guiding rollers for guiding the photosensitive dry film are installed in the five chambers in the shell, so that the photosensitive dry film moves gradually from the preheating chamber in the predetermined direction, and the winding is completed by the winding device installed in the winding chamber, a water tank is installed on the top of the shell, the atomizing nozzle is installed in the wetting chamber, the atomizing nozzle is connected with the water tank through the water pipe and water pump, the dehumidification assembly is arranged on the top of the wetting chamber, the hot air blower is installed on the top of the shell, the hot air nozzles are installed in the preheating chamber, wetting chamber and drying chamber, the hot air blower is communicated with the hot air nozzles in the drying chamber through the pipeline, the drying chamber is communicated with the hot air nozzles in the preheating chamber through the pipeline and temperature control assembly, and the preheating chamber is communicated with the hot air nozzles in the wetting chamber through the pipeline and temperature control assembly.

[0006] Further, the temperature control assembly comprises a temperature control box mounted on the side wall of the shell through the first mounting bracket, an air inlet, an air duct and an air outlet are arranged in the temperature control box, a rotating ring is sealingly and rotatably connected in the middle of the temperature control box, the rotating ring is driven to rotate by a motor, a partition plate is fixedly connected in the rotating ring, the partition plate divides the rotating ring into at least two air chambers, at least one air chamber is located in the air duct to form an air flow passage, and different air chambers can be replaced to form an air flow passage with the air duct by driving the motor, a first adsorption plate for removing organic solvents and a second adsorption plate for removing moisture are arranged on the side close to the air inlet and the side close to the air outlet of the air chamber respectively, and a temperature control box for controlling the temperature of the gas is arranged between the first adsorption plate and the second adsorption plate.

[0007] Further, the temperature control assembly further comprises a first air blower mounted at the air inlet and the air outlet, a temperature and humidity detector for detecting the temperature and humidity of the gas is further arranged at the air outlet, a movable door is further arranged on the temperature control box, and the temperature control box comprises a box body mounted in the air chamber through a hook, and the box body is filled with a phase change material.

[0008] Further, the film inlet and the film outlet in the preheating chamber and the drying chamber are provided with sealing assemblies that hinder the flow of gas, the sealing assemblies comprise sealing blocks symmetrically and sealingly arranged at the film inlet and the film outlet of the preheating chamber and the drying chamber, opposite surfaces of the sealing blocks are rotatably connected with rolling cylinders, first fixed plates are fixedly connected on the inner walls of the preheating chamber and the drying chamber, electric telescopic rods are mounted on the first fixed plates, the telescopic rods of the electric telescopic rods are fixedly connected with one of the sealing blocks, the sealing block is sealingly and slidably connected with the shell, and the other sealing block is fixedly connected with the shell.

[0009] Further, the sealing assembly further comprises a fixed block fixedly connected with the first fixed plate, second fixed plates are fixedly and symmetrically connected on the inner walls of the preheating chamber and the drying chamber, a guide rod is fixedly connected between the two second fixed plates, sealing plates are symmetrically and slidably connected on the guide rod, the sealing plates are in the shape of "U", the two ends of the sealing plates are sealingly and slidably connected with the first fixed plates and the sealing blocks fixedly connected with the upper shell respectively, elastic sealing members are fixedly connected between the sealing plates and the second fixed plates, one side surface of the elastic sealing members abuts against the side surfaces of the two sealing blocks, and the two sealing plates are driven to move closer to or farther away from each other by a driving assembly.

[0010] Further, it further comprises a limiting assembly, the limiting assembly comprises a mounting plate mounted on the sealing plate, a second mounting bracket is mounted on the mounting plate, a detection roller is rotatably connected in the second mounting bracket, and a rotation detector is mounted on the rotating shaft of the detection roller.

[0011] Further, the cooling assembly comprises a frame body fixed to the outer wall of the cooling chamber, and a louver, a dustproof plate, a drying plate, a condenser pipe and a second air blower are sequentially arranged in the frame body from the outside to the inside of the frame body, and a condenser is arranged on the outer wall of the frame body and connected with the condenser pipe through a pipeline.

[0012] Further, the cooling assembly further comprises two inclined blocks symmetrically fixed to the inner wall of the cooling chamber, and the inclined blocks are arranged at the film outlet of the cooling chamber; in the direction from the film inlet to the film outlet, the distance between the two inclined blocks gradually decreases.

[0013] Advantages of the present application:

[0014] 1、The preheating chamber, the wetting chamber and the drying chamber are arranged, and through the multi-stage processing mode, the drying effect can be effectively improved, and the stress accumulation in the film layer due to the fast volatilization of the surface water and the slow volatilization of the internal water in the film layer during the high-temperature drying process of the photosensitive dry film is prevented, and the photosensitive dry film is prevented from being warped or deformed.

[0015] 2、The temperature control assembly is arranged, the temperature control assembly can help adjust the temperature in the preheating chamber, the wetting chamber and the drying chamber, so that the internal temperature gradually increases, and the motor and the movable door are arranged, so that the operator can replace the first adsorption plate, the temperature control box and the second adsorption plate conveniently, and since the temperature control box is made of phase change material, the two temperature control boxes of the temperature control assembly can be alternately used, so that energy can be saved.

[0016] 3、The cooling assembly is arranged, so that when the photosensitive dry film moves to the film outlet in the cooling chamber, the temperature gradually decreases and reaches the lowest at the film outlet, so that the thermal stress caused by rapid cooling is avoided, and the quality of the photosensitive dry film is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a sectional view of the present application.

[0018] Figure 2 It is a structural schematic view of the present application.

[0019] Figure 3 It is a schematic view of the temperature control assembly of the present application.

[0020] Figure 4 It is a sectional view of the temperature control assembly of the present application.

[0021] Figure 5 It is an exploded view of the temperature control assembly of the present application.

[0022] Figure 6 It is a schematic view of the sealing assembly and the limiting assembly of the present application.

[0023] Figure 7 This is a schematic diagram of the limiting component of the present invention.

[0024] Figure 8 This is a cross-sectional view of the frame, second induced draft fan, and drying plate of the present invention.

[0025] Reference numerals: 100, Photosensitive dry film; 101, Housing; 1011, Preheating chamber; 1012, Wetting chamber; 1013, Drying chamber; 1014, Cooling chamber; 1015, Rewinding chamber; 102, Guide roller; 103, Hot air nozzle; 104, Hot air blower; 105, Water tank; 106, Water pump; 107, Atomizing nozzle; 200, First mounting bracket; 201, Temperature control box; 2011, Air inlet; 2012, Air outlet; 2013, Ventilation pipe; 202, Rotating ring; 2021, Ventilation chamber; 203, Partition; 204, First adsorption plate; 205, Second adsorption plate; 206, Hook; 207, Box body; 208. 209. Motor, 211. Movable door, 212. First exhaust fan, 213. Temperature and humidity detector, 304. First fixed plate, 305. Sealing block, 306. Rolling drum, 307. Electric telescopic rod, 308. Second fixed plate, 309. Sealing plate, 300. Elastic seal, 301. Fixed block, 312. Guide rod, 401. Mounting plate, 402. Second mounting bracket, 403. Detection roller, 404. Rotary detector, 501. Frame, 502. Louver, 503. Dustproof plate, 504. Drying plate, 505. Condenser pipe, 506. Second exhaust fan, 507. Inclined block, 508. Third exhaust fan, 509. Condenser. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings.

[0027] A drying apparatus for the production of photosensitive dry film, such as Figures 1-8As shown, including the shell 101, the shell 101 is substantially sealed, the shell 101 is sequentially provided with five chambers from left to right, which are: preheating chamber 1011, wetting chamber 1012, drying chamber 1013, cooling chamber 1014 and winding chamber 1015, wherein the temperature in the preheating chamber 1011, wetting chamber 1012 and drying chamber 1013 increases in turn, and the cooling assembly for cooling the photosensitive dry film 100 is installed in the cooling chamber 1014, the five chambers in the shell 101 are all installed with guide rollers 102 for guiding the photosensitive dry film 100, so that the photosensitive dry film 100 moves gradually from the preheating chamber 1011 to the winding device installed in the winding chamber 1015, the winding device is a prior art, therefore, it is not described in detail, the guide rollers 102 in the shell 101 are arranged in the shape of "J", the guide rollers 102 in the preheating chamber 1011 and the drying chamber 1013 are all installed with four, and the four guide rollers 102 are located on the same vertical line, the guide rollers 102 in the wetting chamber 1012 and the cooling chamber 1014 are all installed with two, and the two guide rollers 102 are located on the same horizontal line, wherein the photosensitive dry film 100 in the preheating chamber 1011 and the drying chamber 1013 is arranged in the shape of "S" with two guide rollers 102 as a group, and in the wetting chamber 1012 and the cooling chamber 1014, it is arranged in the shape of "I", so that the photosensitive dry film 100 in the preheating chamber 1011 and the drying chamber 1013 can experience a longer heating and drying path, so that the heat can uniformly penetrate to each part of the film, while in the wetting chamber 1012 and the cooling chamber 1014, it is quickly processed to avoid long stay, the existing photosensitive dry film 100 volatilizes relatively fast on the surface during drying, while the solvent in the film layer volatilizes slowly, resulting in stress accumulation in the film layer, which may cause the photosensitive dry film 100 to warp or deform, in order to solve this problem, the photosensitive dry film 100 is wound on the guide rollers 102 in the shell 101 in the shape of "J", and is driven by the winding device in the winding chamber 1015, so that the photosensitive dry film 100 sequentially passes through the preheating chamber 1011, the wetting chamber 1012, the drying chamber 1013, the cooling chamber 1014, and finally completes winding in the winding chamber 1015, so that the photosensitive dry film 100 is first treated in the preheating chamber 1011 with relatively low temperature before high temperature drying in the drying chamber 1013, so that some moisture on the surface of the photosensitive dry film 100 is removed, and the moisture in the photosensitive dry film 100 is driven by the evaporation and diffusion driving force, which migrates from the inside to the surface of the film, this process is relatively mild, which can effectively avoid the surface stress accumulation and warping caused by the too fast drying of the film surface, after the photosensitive dry film 100 is treated at low temperature in the preheating chamber 1011, it is moved to the wetting chamber 1012 for wetting treatment, which can slightly wet the surface and interior of the photosensitive dry film 100, which can not only improve the surface performance of the photosensitive dry film 100, but also help to control the internal and external humidity of the photosensitive dry film 100 layer,The surface humidity of the film is greater than the humidity inside the film, and during the wetting process, water gradually penetrates from the outside of the film to the inside of the film, but due to the relatively large internal structure and density of the film, the water migrates into the film at a slow speed, so at the initial stage of the wetting process, the surface humidity of the film is greater than the humidity inside the film, and due to the short path of the wetting chamber 1012, the photosensitive dry film 100 quickly enters the drying chamber 1013 for high-temperature drying, so that the film is kept at the initial stage of wetting, thereby avoiding damage during subsequent heating and drying processes. After the photosensitive dry film 100 is wetted in the wetting chamber 1012, it is moved to the drying chamber 1013 for high-temperature treatment, which can completely remove the water on the surface and inside of the photosensitive dry film 100. After the photosensitive dry film 100 is treated at high temperature in the drying chamber 1013, it is moved to the cooling chamber 1014 for cooling treatment. The cooling treatment can quickly cool the photosensitive dry film 100 to room temperature or a temperature suitable for subsequent operations, preventing the generation of thermal stress and reducing deformation or damage to the film material. Through the above multi-stage processing, the drying effect can be effectively improved, and the photosensitive dry film 100 can be prevented from warping or deforming due to the rapid evaporation of water on the surface and the slow evaporation of water inside the film during high-temperature drying.

[0028] Specifically, the water tank 105 is installed on the top of the shell 101, and the water tank 105 has heating and insulation functions, thereby heating and insulating the internal water source, so that the temperature of the water source is moderate, usually between 40°C and 60°C, ensuring effective wetting of the film surface while avoiding excessive moisture absorption or damage to the film due to high water temperature. The atomizing nozzle 107 is symmetrically installed above and below the photosensitive dry film 100 in the wetting chamber 1012, so that both sides of the film can be wetted. The atomizing nozzle 107 is connected to the water tank 105 through a water pipe and a water pump 106. The water pump 106 is installed on the top of the shell 101, so that the water pump 106 extracts water from the water tank 105, then delivers it to the atomizing nozzle 107 through the water pipe, and sprays it out due to the atomizing nozzle 107. The sprayed water forms fine water mist in the form of tiny droplets, which quickly penetrates the surface of the photosensitive dry film 100, ensuring that the surface of the film is properly wetted. A dehumidification assembly is provided on the top of the wetting chamber 1012 to improve the humidity inside the wetting chamber 1012 and prevent excessive humidity. The specific structure of the dehumidification assembly is the same as that of the prior art.

[0029] Specifically, a hot air blower 104 is installed on the top of the housing 101. Hot air nozzles 103 are installed in the preheating chamber 1011, the wetting chamber 1012, and the drying chamber 1013. The hot air blower 104 is connected to the hot air nozzles 103 in the drying chamber 1013 via pipes. The drying chamber 1013 is connected to the hot air nozzles 103 in the preheating chamber 1011 via pipes and a temperature control component. The preheating chamber 1011 is connected to the hot air nozzles 103 in the wetting chamber 1012 via pipes and a temperature control component. The hot air nozzles 103 in the preheating chamber 1011 and the drying chamber 1013 are located on both sides of the photosensitive dry film 100, and their main function is to dry both sides of the photosensitive dry film 100. The hot air nozzles 103 located in the wetting chamber 1012 mainly function to regulate the temperature of the chamber. The temperature control component includes a temperature control box 201 mounted on the side wall of the housing 101 via a first mounting bracket 200. The temperature control box 201 is approximately semi-cylindrical. Inside the temperature control box 201 are an air inlet 2011, a ventilation pipe 2013, and an air outlet 2012. A rotating ring 202 is rotatably connected to the center of the temperature control box 201 in a sealed manner. Half of the rotating ring 202 is located within the semi-cylindrical region of the temperature control box 201. The rotating ring 202 is driven to rotate by a motor 208 mounted on the temperature control box 201. A partition 203 is fixedly connected inside the rotating ring 202, dividing the interior of the rotating ring 202 into six ventilation chambers 2021. Because half of the rotating ring 202 is located within the semi-cylindrical region of the temperature control box 201, there will be three... A ventilation chamber 2021 is located within the ventilation pipe 2013, forming an airflow passage. Driven by a motor 208, different ventilation chambers 2021 can be replaced to form airflow passages with the ventilation pipe 2013. A first adsorption plate 204 for removing organic solvents and a second adsorption plate 205 for removing moisture are respectively installed on the side of the ventilation chamber 2021 near the air inlet 2011 and the side near the air outlet 2012. The first adsorption plate 204 is specifically activated carbon, and the second adsorption plate 205 is specifically silica gel. Both the first adsorption plate 204 and the second adsorption plate 205 are installed within the ventilation chamber 2021 via a snap-fit ​​structure. This snap-fit ​​structure is existing technology and will not be described further. A device for controlling gas temperature is also installed between the first adsorption plate 204 and the second adsorption plate 205. The temperature control box 201 includes a first exhaust fan 211 installed at the air inlet 2011 and the air outlet 2012. A temperature and humidity detector 212 for detecting gas temperature and humidity is also installed at the air outlet 2012. The temperature control box 201 also has a movable door 209, allowing operators to easily replace the first adsorption plate 204, the temperature control box, and the second adsorption plate 205. The temperature control box includes a box body 207 installed in the ventilation chamber 2021 via a hook 206. The box body 207 is filled with a phase change material. The box body 207 is specifically made of copper, which has strong thermal conductivity. The phase change material is paraffin wax. Before use, the paraffin wax is heated to its phase change temperature, turning it into a liquid state. Then, the melted paraffin wax is poured into the box body 207 and allowed to cool naturally.This allows for the creation of a temperature control box that can alter the gas temperature within the ventilation duct 2013. When the ambient gas temperature drops below the phase change temperature, the paraffin releases heat and re-solidifies, thus raising the temperature of the surrounding gas. Conversely, when the ambient temperature exceeds the phase change temperature, the paraffin absorbs heat and transforms from a solid to a liquid state, thereby cooling the surrounding gas. Thus, the hot air blower 104 delivers hot air through the duct to the hot air nozzle 103 within the drying chamber 1013, where it is ejected. The ejected hot air then heats the photosensitive dry film 100 at a temperature between 60 and 80 degrees Celsius. Simultaneously, the first induced draft fan is activated. The first exhaust fan 211 then transports the dried hot air through a pipe to the temperature control box 201. The air enters through the air inlet 2011 and flows into the ventilation pipe 2013. The first adsorption plate 204 on the ventilation chamber 2021 absorbs the solvents in the hot air, while the paraffin absorbs heat through the box body 207, causing the temperature of the hot air to drop. The cooled hot air then passes through the second adsorption plate 205 to remove moisture before being discharged from the air outlet 2012 and delivered to the hot air nozzle 103 in the preheating chamber 1011. It should be noted that by adjusting the power of the first exhaust fan 211, the temperature of the hot air can be controlled. The flow rate within the ventilation duct 2013 ensures sufficient heat exchange between the hot air and the phase change material within the housing 207. The hot air nozzles 103 in the preheating chamber 1011 eject the hot air after heat exchange, which then performs a low-temperature treatment on the photosensitive dry film 100 at a temperature between 30 and 40 degrees Celsius. The hot air ejected from the hot air nozzles 103 in the preheating chamber 1011 then passes through another set of temperature control components. This other set of temperature control components removes organic solvents and moisture from the hot air exiting the preheating chamber 1011 and simultaneously passes it through a paraffin wax treatment process. Heating is performed, and the heated air flows into the hot air nozzle 103 inside the wetting chamber 1012 and is then ejected from the hot air nozzle 103, thereby changing the temperature inside the wetting chamber 1012. The wetting process temperature is between 40 and 50 degrees Celsius. This achieves a sequential increase in temperature inside the preheating chamber 1011, the wetting chamber 1012, and the drying chamber 1013. A motor 208 and a movable door 209 are provided to facilitate the replacement of the first adsorption plate 204, the temperature control box, and the second adsorption plate 205 by the operator. Because the temperature control box uses a phase change material, the two sets of temperature control components can be used alternately, thus saving energy.

[0030] Furthermore, both the inlet and outlet of the preheating chamber 1011 and the drying chamber 1013 are equipped with sealing assemblies to impede gas flow. These sealing assemblies include symmetrically arranged sealing blocks 302 at the inlet and outlet of the preheating chamber 1011 and the drying chamber 1013, respectively. A rotating drum 303 is rotatably connected to the opposite face of each sealing block 302. A first fixing plate 301 is fixedly connected to the inner wall of the preheating chamber 1011 and the drying chamber 1013. An electric telescopic rod 304 is mounted on the first fixing plate 301. The telescopic rod of the electric telescopic rod 304 is fixedly connected to one of the sealing blocks 302, which is slidably connected to the housing 101 in a sealing manner. The other sealing block 302 is fixedly connected to the housing 101. The electric telescopic rod 304 is activated accordingly. This allows one of the rollers 303 to move closer to the other, thus accommodating different thicknesses of the photosensitive dry film 100 and achieving relative sealing of the inlet and outlet. The sealing assembly also includes a fixing block 308 fixed to the first fixing plate 301. Second fixing plates 305 are symmetrically fixed to the inner walls of the preheating chamber 1011 and the drying chamber 1013. A guide rod 313 is fixed between the two second fixing plates 305. A sealing plate 306 is symmetrically slidably connected to the guide rod 313. The sealing plate 306 is U-shaped, and its two ends slide in a sealing manner with the first fixing plate 301 and the corresponding sealing block 302 fixed to the upper housing 101, respectively. The sealing plate 306 and the second fixing plate 308... An elastic seal 307, specifically a stretchable rubber, is fixed between the two sealing plates 305. One side of the elastic seal 307 is tightly attached to the sides of the two sealing blocks 302. The two sealing plates 306 are driven by a drive assembly to move closer or further apart. The drive assembly is a combination of a motor, a synchronous belt component, and a screw. Specifically, a screw is rotatably connected between the second fixing plate 305 and the fixing block 308, and the screw is threadedly connected to the sealing plate 306. A synchronous belt component is installed on the side of the fixing block 308, and one of the synchronous pulleys in the synchronous belt component is fixedly connected to the screw. A motor is installed on the first fixing plate 301, and the output shaft of the motor is fixedly connected to another synchronous pulley in the synchronous belt component, thereby starting the motor. The output shaft of the motor is driven by the synchronous belt component. The component drives the screw to rotate, causing the two sealing plates 306 to move closer together. This allows the two sealing plates 306 to contact the sidewalls of the photosensitive dry film 100 without applying any force. The sealing plates 306 can adapt to the width of the photosensitive dry film 100, achieving a relative seal at the inlet and outlet. It should be noted that, due to unavoidable factors such as equipment installation and manufacturing precision, the sealing assembly, while not completely obstructing gas flow, can essentially maintain the temperature within the chambers, meeting the temperature requirements of the preheating chamber 1011, wetting chamber 1012, drying chamber 1013, and cooling chamber 1014. Furthermore, the presence of the wetting chamber 1012 and cooling chamber 1014 before and after the drying chamber 1013 prevents dangerous hot air from escaping.Even if a small amount of gas flows between the chambers, it will only accumulate at the junctions and will not affect the overall temperature of the chambers.

[0031] Furthermore, the cooling assembly includes a frame 501 fixed to the outer wall of the cooling chamber 1014. Inside the frame 501, from the outside to the inside of the housing 101, louvers 502, a dustproof plate 503, a drying plate 504, a condenser pipe 505, and a second induced draft fan 506 are sequentially installed. A condenser 509 is installed on the outer wall of the housing 101, and the condenser 509 is connected to the condenser pipe 505 via a pipe. The cooling assembly also includes inclined blocks 507 symmetrically fixed to the inner wall of the cooling chamber 1014. Two inclined blocks 507 are positioned vertically at the film outlet of the cooling chamber 1014. From the inlet to the outlet, the distance between the two inclined blocks 507 gradually decreases on their closest sides, i.e., the distance between the two inclined blocks 507 gradually decreases from left to right. A third induced draft fan 508 is installed in the winding chamber 1015. The gases in the cooling chamber 1014 and the winding chamber 1015 flow between each other. Therefore, starting the second induced draft fan 506, the condenser pipe 505, and the third induced draft fan 508... The induced draft fan 506 draws outside air into the cooling chamber 1014, where it is cleaned by dust filter 503 and dried by drying plate 504. The air then exchanges heat with the condenser tube 505, which absorbs heat and releases heat to form cold air. This cold air is then blown into the cooling chamber 1014. Simultaneously, the third induced draft fan 508 draws the cold air from the cooling chamber 1014 to the winding chamber 1015. During this flow, the turbulence caused by the inclined block 507 ensures that the cold air remains within the cooling chamber 1014. The flow path and speed within 4 change, causing uneven temperature distribution within the cooling chamber 1014, thus forming a cooling temperature gradient. The temperature is highest when the photosensitive dry film 100 first enters the cooling chamber 1014 at the inlet, and gradually decreases as the photosensitive dry film 100 moves towards the outlet, reaching its lowest point at the outlet of the cooling chamber 1014. This helps to avoid thermal stress caused by excessively rapid cooling and ensures the quality of the photosensitive dry film 100.

[0032] Furthermore, since the photosensitive dry film 100 located in the preheating chamber 1011 and drying chamber 1013 needs to move a long distance, the photosensitive dry film 100 may shift during the movement. To solve this problem, a limiting component is also included. The limiting component includes a mounting plate 401 mounted on the sealing plate 306, a second mounting bracket 402 mounted on the mounting plate 401, and a detection roller 403 rotatably connected inside the second mounting bracket 402. A rotation detector 404 is mounted on the rotation shaft of the detection roller 403. When the sealing plate 306 moves, it will drive the second mounting bracket 402 to move, thereby causing the detection roller 403 to approach the photosensitive dry film 100. If the photosensitive dry film 100 shifts, the photosensitive dry film 100 will drive the detection roller 403 to rotate, which will be detected by the rotation detector 404, and then the staff can be notified to handle the situation.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A drying apparatus for producing photosensitive dry film, characterized in that, The device includes a housing (101), within which five chambers are arranged from left to right: a preheating chamber (1011), a wetting chamber (1012), a drying chamber (1013), a cooling chamber (1014), and a winding chamber (1015). The temperatures in the preheating chamber (1011), wetting chamber (1012), and drying chamber (1013) increase sequentially. The cooling chamber (1014) is equipped with a cooling assembly for cooling the photosensitive dry film (100). Each of the five chambers in the housing (101) is equipped with a guide roller (102) for guiding the photosensitive dry film (100), so that the photosensitive dry film (100) gradually moves from the preheating chamber (1011) in a predetermined direction and is wound up by a winding device installed in the winding chamber (1015). The top of the housing (101) A water tank (105) is installed, and an atomizing nozzle (107) is installed in the wetting chamber (1012). The atomizing nozzle (107) is connected to the water tank (105) through a water pipe and a water pump (106). A dehumidifying component is installed on the top of the wetting chamber (1012). A hot air blower (104) is installed on the top of the shell (101). Hot air nozzles (103) are installed in the preheating chamber (1011), the wetting chamber (1012), and the drying chamber (1013). The hot air blower (104) is connected to the hot air nozzle (103) in the drying chamber (1013) through a pipe. The drying chamber (1013) is connected to the hot air nozzle (103) in the preheating chamber (1011) through a pipe and a temperature control component. The preheating chamber (1011) is connected to the hot air nozzle (103) in the wetting chamber (1012) through a pipe and a temperature control component. The temperature control assembly includes a temperature control box (201) mounted on the side wall of the housing (101) via a first mounting bracket (200). The temperature control box (201) is provided with an air inlet (2011), a ventilation pipe (2013), and an air outlet (2012). A rotating ring (202) is rotatably connected to the middle of the temperature control box (201). The rotating ring (202) is driven to rotate by a motor (208). A partition (203) is fixed inside the rotating ring (202). The partition (203) divides the interior of the rotating ring (202) into at least two ventilation chambers (2021), at least one of which is a ventilation chamber. The ventilation chamber (2021) is located inside the ventilation pipe (2013) to form an airflow passage. It can be driven by a motor (208) to change different ventilation chambers (2021) and form an airflow passage with the ventilation pipe (2013). The ventilation chamber (2021) is equipped with a first adsorption plate (204) for removing organic solvents and a second adsorption plate (205) for removing moisture on the side near the air inlet (2011) and the side near the air outlet (2012), respectively. A temperature control box for controlling the gas temperature is also installed between the first adsorption plate (204) and the second adsorption plate (205). The temperature control assembly also includes a first induced draft fan (211) installed at the air inlet (2011) and the air outlet (2012), and a temperature and humidity detector (212) for detecting gas temperature and humidity is also installed at the air outlet (2012). The temperature control box (201) is also equipped with a movable door (209). The temperature control box includes a box body (207) installed in the ventilation chamber (2021) by a hook (206), and the box body (207) is filled with phase change material. The inlet and outlet of the preheating chamber (1011) and the drying chamber (1013) are equipped with sealing components that obstruct gas flow. The sealing components include sealing blocks (302) symmetrically and sealingly arranged at the inlet and outlet of the preheating chamber (1011) and the drying chamber (1013). The opposite surfaces of the sealing blocks (302) are rotatably connected to the rollers (303) without shafts. A first fixing plate (301) is fixedly connected to the inner wall of the preheating chamber (1011) and the drying chamber (1013). An electric telescopic rod (304) is installed on the first fixing plate (301). The telescopic rod of the electric telescopic rod (304) is fixedly connected to one of the sealing blocks (302). The sealing block (302) is slidably connected to the shell (101) in a sealing manner. The other sealing block (302) is fixedly connected to the shell (101). The sealing assembly also includes a fixing block (308) fixed to the first fixing plate (301), and second fixing plates (305) symmetrically fixed to the inner walls of the preheating chamber (1011) and the drying chamber (1013). A guide rod (313) is fixed between the two second fixing plates (305), and a sealing plate (306) is symmetrically slidably connected to the guide rod (313). The sealing plate (306) is U-shaped, and the two ends of the sealing plate (306) are respectively sealed and slidably connected to the first fixing plate (301) and the sealing block (302) fixed to the upper shell (101). An elastic sealing element (307) is fixed between the sealing plate (306) and the second fixing plate (305). One side of the elastic sealing element (307) is tightly attached to the side of the two sealing blocks (302). The two sealing plates (306) are driven by a driving assembly to move closer or further apart from each other. It also includes a limiting component, which includes a mounting plate (401) mounted on a sealing plate (306), a second mounting bracket (402) mounted on the mounting plate (401), a detection roller (403) rotatably connected inside the second mounting bracket (402), and a rotation detector (404) mounted on the rotation shaft of the detection roller (403). The cooling assembly includes a frame (501) fixed to the outer wall of the cooling chamber (1014). Inside the frame (501), from the outside to the inside of the shell (101), a louver (502), a dustproof plate (503), a drying plate (504), a condenser pipe (505), and a second induced draft fan (506) are installed in sequence. A condenser (509) is installed on the outer wall of the shell (101). The condenser (509) is connected to the condenser pipe (505) through a pipe. The cooling assembly also includes symmetrically fixed inclined blocks (507) on the inner wall of the cooling chamber (1014), the inclined blocks (507) being located at the film outlet of the cooling chamber (1014); in the direction from the film inlet to the film outlet, the distance between the two inclined blocks (507) on the side that are close to each other gradually decreases, and a third induced draft fan (508) is installed in the winding chamber (1015).

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