Drying device for photosensitive dry film production

Abstract

The invention relates to the technical field of photosensitive dry film production, in particular to a drying device for photosensitive dry film production, which is characterized in that a shell is internally provided with five chambers from left to right in sequence, namely a preheating chamber, a wetting chamber, a drying chamber, a cooling chamber and a winding chamber, a cooling assembly used for cooling the photosensitive dry film is installed in the cooling chamber, and guide rollers used for guiding the photosensitive dry film are installed in the five cavities in the shell, so that the photosensitive dry film gradually moves from the preheating chamber in the preset direction, and winding is completed through a winding device installed in the winding chamber. According to the photosensitive dry film drying device, the preheating chamber, the wetting chamber, the drying chamber and other parts are arranged, the drying effect can be effectively improved through multiple stage type treatment modes, and the situation that in the high-temperature drying process of a photosensitive dry film, due to the fact that water on the surface volatilizes rapidly and water in a film layer volatilizes slowly, the photosensitive dry film warps or deforms is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of photosensitive dry film production, and in particular to a drying device for photosensitive dry film production. Background Art

[0002] Photosensitive dry film is usually composed of photosensitive resin, filler, plasticizer and other chemical additives. 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. Therefore, photosensitive dry film is widely used in the production of electronic products such as printed circuit boards and flexible circuit boards.

[0003] After the coating of the photosensitive dry film is completed, the solvent needs to be removed through a drying process to ensure the curing and dryness of the film layer. During the drying process of the existing photosensitive dry film, the solvent on the surface of the photosensitive dry film evaporates quickly, while the solvent inside the film layer evaporates slowly due to factors such as high density and poor conduction. If the film surface dries too quickly, a dry film will form on the outside of the film layer, and the internal solvent fails to evaporate in time, which may cause stress accumulation inside the film layer and even cause warping or deformation of the film layer. In view of this, the present invention proposes a drying device for photosensitive dry film production to solve the above-mentioned technical problems. Summary of the invention

[0004] In order to overcome the technical problems mentioned in the background technology, the present invention provides a drying device for producing photosensitive dry films.

[0005] The technical solution is: a drying device for photosensitive dry film production, including a shell, wherein five chambers are arranged in sequence from left to right in the shell, namely: 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 increased in sequence, and a cooling assembly for cooling the photosensitive dry film is installed in the cooling chamber, and guide rollers for guiding the photosensitive dry film are installed in each of the five chambers in the shell, so that the photosensitive dry film gradually moves from the preheating chamber in a predetermined direction and passes through a roller installed in the winding chamber. The winding device in the winding chamber completes the winding, a water tank is installed on the top of the shell, and an atomizing nozzle is installed in the wetting chamber, the atomizing nozzle is connected to the water tank through a water pipe and a water pump, a dehumidification component is arranged on the top of the wetting chamber, a hot air blower is installed on the top of the shell, hot air nozzles are installed in the preheating chamber, the wetting chamber and the drying chamber, the hot air blower is connected with the hot air nozzle in the drying chamber through a pipe, the drying chamber is connected with the hot air nozzle in the preheating chamber through a pipe and a temperature control component, and the preheating chamber is connected with the hot air nozzle in the wetting chamber through a pipe and a temperature control component.

[0006] Furthermore, the temperature control component includes a temperature control box mounted on the side wall of the shell through a first mounting frame, the temperature control box is provided with an air inlet, a ventilation duct and an air outlet, a rotating ring is sealed and rotatably connected to the middle part of the temperature control box, the rotating ring is driven by a motor to realize rotation, a partition is fixed in the rotating ring, the partition divides the interior of the rotating ring into at least two ventilation chambers, at least one ventilation chamber is located in the ventilation duct to form an airflow passage, and different ventilation chambers and ventilation ducts can be replaced by motor drive to form an airflow passage, a first adsorption plate for removing organic solvents and a second adsorption plate for removing moisture are respectively installed on one side of the ventilation chamber close to the air inlet and the side close to the air outlet, and a temperature control box for controlling the gas temperature is also installed between the first adsorption plate and the second adsorption plate.

[0007] Furthermore, the temperature control component also includes a first induced draft fan installed at the air inlet and the air outlet, a temperature and humidity detector for detecting the temperature and humidity of the gas is also installed at the air outlet, and a movable door is also installed on the temperature control box. The temperature control box includes a box body installed in the ventilation cavity by a hook, and the interior of the box body is filled with phase change material.

[0008] Furthermore, the film inlet and outlet in the preheating chamber and the drying chamber are both equipped with sealing components that hinder gas circulation, and the sealing components include sealing blocks that are symmetrically and sealingly arranged at the film inlet and outlet on the preheating chamber and the drying chamber, and the opposite surfaces of the sealing blocks are rotatably connected with a rolling cylinder without an axis, and a first fixed plate is fixedly connected to the inner wall of the preheating chamber and the drying chamber, and an electric telescopic rod is installed on the first fixed plate, the telescopic rod of the electric telescopic rod is fixedly connected to one of the sealing blocks, and the sealing block is sealingly slidably connected to the shell, and the other sealing block is fixed to the shell.

[0009] Furthermore, the sealing assembly also includes a fixed block fixed to the first fixed plate, a second fixed plate is symmetrically fixed to the inner walls of the preheating chamber and the drying chamber in a front-to-back manner, a guide rod is fixed between the two second fixed plates, a sealing plate is symmetrically slidably connected to the guide rod, the sealing plate is in a "U" shape, and the two ends of the sealing plate respectively slide in a sealed manner with the first fixed plate and the sealing block fixed to the upper shell body, an elastic sealing member is fixed between the sealing plate and the second fixed plate, one side of the elastic sealing member is tightly attached to the side surfaces of the two sealing blocks, and the two sealing plates are driven by the driving assembly to achieve mutual approach or distance from each other.

[0010] Furthermore, it also includes a limit assembly, which includes a mounting plate installed on the sealing plate, a second mounting frame installed on the mounting plate, a detection roller rotatably connected in the second mounting frame, and a rotation detector installed on the rotating shaft of the detection roller.

[0011] Furthermore, the cooling assembly includes a frame fixedly connected to the outer wall of the cooling chamber, in which shutters, dustproof plates, drying plates, condenser tubes and second induced draft fans are installed in sequence from the outside to the inside of the shell, and a condenser is installed on the outer wall of the shell, and the condenser is connected to the condenser tube through a pipe.

[0012] Furthermore, the cooling assembly also includes an inclined block symmetrically fixed to the inner wall of the cooling chamber, and the inclined block is arranged at the film outlet of the cooling chamber; in the direction from the film inlet to the film outlet, the distance between the sides of the two inclined blocks approaching each other gradually decreases, and a third induced draft fan is installed in the winding chamber.

[0013] Beneficial effects of the present invention: 1. The present invention is provided with components such as a preheating chamber, a wetting chamber and a drying chamber. Through a variety of staged treatment methods, the drying effect can be effectively improved to prevent the photosensitive dry film from warping or deformation due to the accumulation of stress inside the film layer caused by the rapid evaporation of surface moisture and the slow evaporation of moisture inside the film layer during the high-temperature drying process of the photosensitive dry film.

[0014] 2. The present invention is provided with components such as a temperature control assembly. The temperature control assembly can help adjust the temperature inside the preheating chamber, the wetting chamber and the drying chamber so that the internal temperature increases sequentially. A motor and a movable door are also provided to facilitate operators to replace the first adsorption plate, the temperature control box and the second adsorption plate. Since the temperature control box adopts a phase change material, the temperature control boxes of the two sets of temperature control assemblies can be used alternately, which can save more energy.

[0015] 3. The present invention is provided with components such as a cooling assembly. The cooling assembly allows the temperature of the photosensitive dry film to gradually decrease as it moves toward the film outlet in the cooling chamber, and to drop to the lowest at the film outlet of the cooling chamber. This helps to avoid thermal stress caused by excessive cooling and ensure the quality of the photosensitive dry film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the present invention.

[0017] Figure 2 It is a schematic diagram of the structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the temperature control component of the present invention.

[0019] Figure 4 It is a cross-sectional view of the temperature control component of the present invention.

[0020] Figure 5 It is an exploded view of the temperature control component of the present invention.

[0021] Figure 6 It is a schematic diagram of the sealing component and the limiting component of the present invention.

[0022] Figure 7 It is a schematic diagram of the limiting component of the present invention.

[0023] Figure 8 It is a cross-sectional view of the frame, the second induced draft fan, the drying plate and other components of the present invention.

[0024] Reference numerals: 100, photosensitive dry film, 101, shell, 1011, preheating chamber, 1012, wetting chamber, 1013, drying chamber, 1014, cooling chamber, 1015, winding chamber, 102, guide roller, 103, hot air nozzle, 104, hot air blower, 105, water tank, 106, water pump, 107, atomizing nozzle, 200, first mounting frame, 201, temperature control box, 2011, air inlet, 2012, air outlet, 2013, ventilation duct, 202, rotating ring, 2021, ventilation cavity, 203, partition, 204, first adsorption plate, 205, second adsorption plate, 206, hook, 207, box body, 208, Motor, 209, movable door, 211, first induced draft fan, 212, temperature and humidity detector, 301, first fixed plate, 302, sealing block, 303, rolling cylinder, 304, electric telescopic rod, 305, second fixed plate, 306, sealing plate, 307, elastic sealing member, 308, fixed block, 313, guide rod, 401, mounting plate, 402, second mounting frame, 403, detection roller, 404, rotation detector, 501, frame, 502, shutter, 503, dustproof plate, 504, drying plate, 505, condenser, 506, second induced draft fan, 507, inclined block, 508, third induced draft fan, 509, condenser. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0026] A drying device for producing photosensitive dry films, such as Figure 1-Figure 8As shown, it includes a shell 101, which is generally sealed. Five chambers are arranged in the shell 101 from left to right, namely: 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, the wetting chamber 1012 and the drying chamber 1013 are increased in sequence, and a cooling component for cooling the photosensitive dry film 100 is installed in the cooling chamber 1014. Guide rollers 102 for guiding the photosensitive dry film 100 are installed in the five chambers in the shell 101, 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 winding device is The prior art is not described in detail. The guide rollers 102 in the housing 101 are distributed in a "J" shape. Four guide rollers 102 are installed in the preheating chamber 1011 and the drying chamber 1013, and the four guide rollers 102 are located on the same vertical line. Two guide rollers 102 are installed in the moistening chamber 1012 and the cooling chamber 1014, and the two guide rollers 102 are located on the same horizontal line. The photosensitive dry film 100 is arranged in an "S" shape in the preheating chamber 1011 and the drying chamber 1013 with two guide rollers 102 as a group, and in a "I" shape in the moistening chamber 1012 and the cooling chamber 1014. In this way, the photosensitive dry film 100 can experience a longer heating and drying path in the preheating chamber 1011 and the drying chamber 1013, so that Heat can evenly penetrate into every part of the film, and is quickly processed in the wetting chamber 1012 and the cooling chamber 1014 to avoid long-term stay. When the existing photosensitive dry film 100 is dried, the solvent on the surface evaporates quickly, while the solvent inside the film layer evaporates slowly, resulting in stress accumulation inside 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 roller 102 in the shell 101 in a "J" shape, and is driven by the winding device in the winding chamber 1015, so that the photosensitive dry film 100 passes through the preheating chamber 1011, the wetting chamber 1012, the drying chamber 1013, and the cooling chamber 1014 in turn, and finally completes the winding in the winding chamber 1015. Before the photosensitive dry film 100 is subjected to high-temperature drying in the drying chamber 1013, it is first subjected to low-temperature treatment in the preheating chamber 1011 at a relatively low temperature, so that some moisture on the surface of the photosensitive dry film 100 is removed first, and the moisture inside the photosensitive dry film 100 is driven by the driving force of evaporation and diffusion, and the moisture will migrate from the inside of the film to the surface. This process is relatively gentle and can effectively avoid the accumulation of surface stress and warping caused by too fast drying of the film surface. After the photosensitive dry film 100 is subjected to low-temperature treatment in the preheating chamber 1011, it is moved to the wetting chamber 1012 for wetting treatment. The wetting treatment can make the surface and the inside of the photosensitive dry film 100 slightly moist, 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 will be greater than the humidity inside the film. During the wetting process, water gradually penetrates from the outside of the film to the inside of the film. However, due to the relatively large internal structure and density of the film, the speed at which water migrates into the film is slow. Therefore, in the early stage of the wetting process, the surface humidity of the film will be greater than the humidity inside the film. Since the distance of the wetting chamber 1012 is set short, the photosensitive dry film 100 quickly enters the drying chamber 1013 for high-temperature drying, so that the film is kept in the early stage of wetting to avoid damage during the subsequent heating and drying process. 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. The high temperature treatment can completely remove the moisture on the surface and inside of the photosensitive dry film 100. After the photosensitive dry film 100 is subjected to the high temperature treatment 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, which can prevent the generation of thermal stress and reduce the deformation or damage of the film material. In this way, through multiple staged treatment methods, the drying effect can be effectively improved to prevent the photosensitive dry film 100 from evaporating faster due to the rapid evaporation of the surface moisture and the slow evaporation of the moisture inside the film layer during the high temperature drying process, resulting in the accumulation of stress inside the film layer, and then causing the photosensitive dry film 100 to warp or deform.

[0027] Specifically, a water tank 105 is installed on the top of the shell 101. The water tank 105 has heating and heat preservation functions, and can heat and keep the internal water source warm, so that the temperature of the water source is relatively moderate, usually between 40 degrees Celsius and 60 degrees Celsius, to ensure that the film surface can be effectively wetted, while avoiding excessive moisture absorption or damage to the film due to excessive water temperature. Atomizing nozzles 107 are installed symmetrically up and down in the wetting chamber 1012 with the photosensitive dry film 100 as the center, 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 1 06 is installed on the top of the shell 101, so that water is drawn from the water tank 105 through the water pump 106, and then transported to the atomizing nozzle 107 through the water pipe. As the atomizing nozzle 107 sprays out, the sprayed water is transformed into fine water mist, and the atomized water mist is sprayed on the surface of the photosensitive dry film 100 in the form of tiny water droplets, and can quickly penetrate into the surface of the film to ensure that the surface of the film is properly moistened. A dehumidification component is arranged on the top of the wetting chamber 1012, which can improve the humidity inside the wetting chamber 1012 and prevent the humidity from being too high. The specific structure of the dehumidification component is the same as the prior art.

[0028] Specifically, a hot air blower 104 is installed on the top of the shell 101, and 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 with the hot air nozzle 103 in the drying chamber 1013 through a pipeline, and the drying chamber 1013 is connected with the hot air nozzle 103 in the preheating chamber 1011 through a pipeline and a temperature control component. The preheating chamber 1011 is connected with the hot air nozzle 103 in the wetting chamber 1012 through a pipeline and a temperature control component. The hot air nozzles 103 in the preheating chamber 1011 and the drying chamber 1013 are arranged on both sides of the photosensitive dry film 100, and their main function is to dry both sides of the photosensitive dry film 100, while the hot air nozzle 103 arranged in the wetting chamber 1012 mainly functions to regulate the indoor The temperature of the temperature control component includes a temperature control box 201 installed on the side wall of the shell 101 through a first mounting frame 200. The temperature control box 201 is roughly semi-cylindrical. An air inlet 2011, a ventilation duct 2013 and an air outlet 2012 are arranged in the temperature control box 201. A rotating ring 202 is sealed and rotatably connected in the middle of the temperature control box 201. Half of the rotating ring 202 is located in the semi-cylindrical area of ​​the temperature control box 201. The rotating ring 202 is driven by a motor 208 to rotate. The motor 208 is installed on the temperature control box 201. A partition 203 is fixed in the rotating ring 202. The partition 203 divides the interior of the rotating ring 202 into six ventilation cavities 2021. Since half of the rotating ring 202 is located in the semi-cylindrical area of ​​the temperature control box 201, there will be three A ventilation cavity 2021 is located in the ventilation duct 2013 to form an air flow passage, and different ventilation cavities 2021 can be replaced with the ventilation duct 2013 by driving the motor 208 to form an air flow passage. 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 cavity 2021 close to the air inlet 2011 and the side close to the air outlet 2012. The first adsorption plate 204 is specifically activated carbon, and the second adsorption plate 205 is specifically silica gel. The first adsorption plate 204 and the second adsorption plate 205 are both installed in the ventilation cavity 2021 through a snap-fit ​​structure. The snap-fit ​​structure is a prior art and is not elaborated here. A gas temperature control device is also installed between the first adsorption plate 204 and the second adsorption plate 205. The temperature control box has a temperature of 200°, the temperature control assembly also includes a first induced draft fan 211 installed at the air inlet 2011 and the air outlet 2012, a temperature and humidity detector 212 for detecting the temperature and humidity of the gas is also installed at the air outlet 2012, and a movable door 209 is also installed on the temperature control box 201, so that the staff can 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 cavity 2021 through a hook 206, the box body 207 is filled with a phase change material, the box body 207 specifically uses a copper box, which has strong thermal conductivity, and the phase change material is specifically paraffin. Before use, the paraffin is heated to the phase change temperature to make it change into a liquid state, and then the melted paraffin is introduced into the box body 207 and cooled naturally.In this way, a temperature control box that can change the temperature of the gas in the ventilation duct 2013 can be obtained. When the ambient gas temperature drops below the phase change temperature, the paraffin will release heat and solidify into a solid state again, thereby causing the ambient gas to heat up. Conversely, when the ambient temperature is higher than the phase change temperature, the paraffin will absorb heat and change from a solid state to a liquid state, thereby causing the ambient gas to cool down. It can be seen that the hot air blower 104 transports the hot air to the hot air nozzle 103 in the drying chamber 1013 through the pipeline, and the hot air is ejected from the hot air nozzle 103 in the drying chamber 1013. The ejected hot air treats the photosensitive dry film 100 with a high temperature. The high temperature treatment temperature is between 60 degrees Celsius and 80 degrees Celsius. At the same time, the first induced draft fan is started. The first induced draft fan 211 then delivers the dried hot air to the temperature control box 201 through the pipeline, enters from the air inlet 2011 in the temperature control box 201, and flows into the ventilation duct 2013, and the first adsorption plate 204 on the ventilation cavity 2021 absorbs the organic solvent in the hot air, and the paraffin absorbs heat through the heat conduction of the box body 207, thereby reducing the temperature of the hot air, and the hot air after the drop is discharged from the air outlet 2012 after the moisture is removed by the second adsorption plate 205, and is delivered to the hot air nozzle 103 in the preheating chamber 1011. It should be noted that by adjusting the power of the first induced draft fan 211, the hot air can be controlled at The flow rate in the ventilation duct 2013 is such that the hot air can fully exchange heat with the phase change material in the box body 207. The hot air nozzle 103 in the preheating chamber 1011 ejects the hot air after the heat exchange. The hot air nozzle 103 in the preheating chamber 1011 ejects the hot air to perform low-temperature treatment on the photosensitive dry film 100. The temperature of the low-temperature treatment is between 30 degrees Celsius and 40 degrees Celsius. The hot air ejected by the hot air nozzle 103 in the preheating chamber 1011 passes through another group of temperature control components. The other group of temperature control components removes organic solvents and moisture from the hot air flowing out of the preheating chamber 1011, and at the same time, the hot air flowing out of the preheating chamber 1011 is heated by paraffin wax. The heated hot air flows into the hot air nozzle 103 in the moistening chamber 1012 and is ejected by the hot air nozzle 103 in the moistening chamber 1012, thereby changing the temperature in the moistening chamber 1012. The moistening treatment temperature is between 40 and 50, thereby achieving the temperature increase in the preheating chamber 1011, the moistening chamber 1012 and the drying chamber 1013 in sequence. At the same time, a motor 208 and a movable door 209 are provided, which can facilitate the operator to replace the first adsorption plate 204, the temperature control box and the second adsorption plate 205. Since the temperature control box adopts phase change material, the temperature control boxes of the two sets of temperature control components can be used alternately, which can save more energy.

[0029] Furthermore, the film inlet and outlet in the preheating chamber 1011 and the drying chamber 1013 are both equipped with sealing components that hinder gas circulation, and the sealing components include sealing blocks 302 that are symmetrically and sealingly arranged at the film inlet and outlet on the preheating chamber 1011 and the drying chamber 1013, and the opposite surface of the sealing block 302 is rotatably connected with a rolling drum 303 without an axis, and the inner walls of the preheating chamber 1011 and the drying chamber 1013 are fixedly connected with a first fixed plate 301, and an electric telescopic rod 304 is installed on the first fixed plate 301, and the telescopic rod of the electric telescopic rod 304 is fixedly connected to one of the sealing blocks 302, and the sealing block 302 is sealingly slidably connected to the shell 101, and the other sealing block 302 is fixedly connected to the shell 101, so that the electric telescopic rod 304 is started , and then one of the rolling drums 303 can be made to approach the other rolling drum 303, and then it can adapt to the thickness of different photosensitive dry films 100, and complete the relative sealing of the film inlet and the film outlet. The sealing assembly also includes a fixing block 308 fixedly connected to the first fixing plate 301, and the second fixing plates 305 are symmetrically fixedly connected to the inner walls of the preheating chamber 1011 and the drying chamber 1013. A guide rod 313 is fixedly connected 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 in a "U" shape, and the two ends of the sealing plate 306 are respectively sealed and slid with the first fixing plate 301 and the corresponding sealing block 302 fixedly connected to the upper shell 101, and the sealing plate 306 and the second fixing plate 3 05 is fixedly connected with an elastic seal 307, which is specifically a telescopic rubber. One side of the elastic seal 307 is tightly attached to the side surfaces of the two sealing blocks 302. The two sealing plates 306 are driven by a driving assembly to achieve mutual approach or distance. The driving assembly is specifically a combination of a motor, a synchronous belt component and a screw, that is, a screw is rotatably connected between the second fixed plate 305 and the fixed block 308, and the screw is threadedly connected to the sealing plate 306. A synchronous belt component is installed on the side of the fixed block 308, and a synchronous wheel in the synchronous belt component is fixedly connected to the screw. A motor is installed on the first fixed plate 301, and the output shaft of the motor is fixedly connected to another synchronous wheel in the synchronous belt component, so as to start the motor. The output shaft of the motor is connected to the synchronous belt component through the synchronous belt component. The screw is driven to rotate, so that the two sealing plates 306 are close to each other, so that the two sealing plates 306 can contact the side walls of the photosensitive dry film 100 without applying any force, and the sealing plates 306 can adapt to the width of the photosensitive dry film 100, and complete the relative sealing of the film inlet and the film outlet. It should be added that the sealing component cannot completely block the gas flow due to unstoppable factors such as equipment installation and processing accuracy, but it can basically maintain the temperature in the chamber and basically meet the temperature requirements of the preheating chamber 1011, the wetting chamber 1012, the drying chamber 1013 and the cooling chamber 1014. Because the wetting chamber 1012 and the cooling chamber 1014 are arranged in front and behind the drying chamber 1013, dangerous hot air will not flow out.Even if a small amount of gas circulates between the chambers, it will only gather at the connection between the chambers and will not affect the overall temperature of the chamber.

[0030] Furthermore, the cooling assembly includes a frame 501 fixedly connected to the outer wall of the cooling chamber 1014, and a shutter 502, a dust plate 503, a drying plate 504, a condenser 505 and a second induced draft fan 506 are installed in the frame 501 in sequence from the outside of the shell 101 to the inside, and a condenser 509 is installed on the outer wall of the shell 101, and the condenser 509 is connected to the condenser 505 through a pipeline. The cooling assembly also includes an inclined block 507 symmetrically fixed to the inner wall of the cooling chamber 1014, and the inclined block 507 are arranged at the film outlet of the cooling chamber 1014. In the direction from the film inlet to the film outlet, the distance between the sides of the two inclined blocks 507 that are close to each other gradually decreases, that is, the distance between the sides of the two inclined blocks 507 that are close to each other 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 mutually. Therefore, the second induced draft fan 506, the condensation pipe 505 and the third induced draft fan 508 are started, and the second The induced draft fan 506 introduces outside air into the cooling chamber 1014, and removes dust through the dustproof plate 503, removes water through the drying plate 504, and then exchanges heat with the condenser 505. The condenser 505 absorbs heat, and the air releases heat to form cold air, which can then be blown into the cooling chamber 1014. At the same time, through the third induced draft fan 508, the cold air will flow from the cooling chamber 1014 to the winding chamber 1015. In the process of flowing, due to the turbulence of the inclined block 507, the cold air in the cooling chamber 101 4 changes, thereby causing uneven temperature distribution in the cooling chamber 1014, that is, forming a cooling temperature gradient. When the photosensitive dry film 100 just enters the film inlet of the cooling chamber 1014, the temperature is the highest. As the photosensitive dry film 100 gradually moves toward the film outlet, the temperature gradually decreases and reaches the lowest at the film outlet of the cooling chamber 1014. This helps to avoid thermal stress caused by excessive cooling and ensure the quality of the photosensitive dry film 100.

[0031] Furthermore, since the photosensitive dry film 100 located in the preheating chamber 1011 and the drying chamber 1013 needs to move a long distance, the photosensitive dry film 100 may be offset during the movement. In order to solve this problem, a limit assembly is also included. The limit assembly includes a mounting plate 401 mounted on the sealing plate 306, and a second mounting frame 402 is mounted on the mounting plate 401. A detection roller 403 is rotatably connected to the second mounting frame 402, and a rotation detector 404 is installed on the rotating axis of the detection roller 403. When the sealing plate 306 moves, the second mounting frame 402 is driven to move, thereby making the detection roller 403 close to the photosensitive dry film 100. If the photosensitive dry film 100 is offset, the photosensitive dry film 100 will drive the detection roller 403 to rotate, and then be detected by the rotation detector 404, so that the staff can be notified to handle it.

[0032] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A drying device for producing photosensitive dry film, characterized in that: The invention comprises a shell (101), wherein five chambers are arranged in sequence from left to right in the shell (101): a preheating chamber (1011), a wetting chamber (1012), a drying chamber (1013), a cooling chamber (1014) and a winding chamber (1015), wherein the temperatures in the preheating chamber (1011), the wetting chamber (1012) and the drying chamber (1013) are increased in sequence, and a cooling assembly for cooling a photosensitive dry film (100) is installed in the cooling chamber (1014), and guide rollers (102) for guiding the photosensitive dry film (100) are installed in each of the five chambers in the shell (101), 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), and the top of the shell (101) is provided 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). A water tank (105) is installed, an atomizing nozzle (107) is installed in the wetting chamber (1012), the atomizing nozzle (107) is connected to the water tank (105) via a water pipe and a water pump (106), a dehumidifying component is arranged on the top of the wetting chamber (1012), a hot air blower (104) is installed on the top of the housing (101), hot air blowers (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 blower (103) in the drying chamber (1013) via a pipeline, the drying chamber (1013) is connected to the hot air blower (103) in the preheating chamber (1011) via a pipeline and a temperature control component, and the preheating chamber (1011) is connected to the hot air blower (103) in the wetting chamber (1012) via a pipeline and a temperature control component.

2. A drying device for producing photosensitive dry film according to claim 1, characterized in that: The temperature control assembly comprises a temperature control box (201) mounted on the side wall of the housing (101) via a first mounting frame (200); an air inlet (2011), a ventilation duct (2013) and an air outlet (2012) are arranged in the temperature control box (201); a rotating ring (202) is connected in a sealed manner to the middle of the temperature control box (201); the rotating ring (202) is driven by a motor (208) to rotate; a partition (203) is fixedly connected to the rotating ring (202); the partition (203) divides the interior of the rotating ring (202) into at least two ventilation cavities (221), at least one of which is The ventilation cavity (2021) is located in the ventilation duct (2013) to form an air flow passage, and different ventilation cavities (221) and the ventilation duct (2013) can be replaced by driving a motor (208) to form an air flow passage. A first adsorption plate (204) for removing organic solvents and a second adsorption plate (205) for removing moisture are respectively installed on a side of the ventilation cavity (2021) close to the air inlet (211) and a side close to the air outlet (212), and a temperature control box for controlling the gas temperature is also installed between the first adsorption plate (204) and the second adsorption plate (205).

3. A drying device for producing photosensitive dry film according to claim 2, characterized in that: The temperature control component also includes a first induced draft fan (211) installed at the air inlet (211) and the air outlet (212); a temperature and humidity detector (212) for detecting gas temperature and humidity is also installed at the air outlet (212); a movable door (209) is also installed on the temperature control box (201); the temperature control box includes a box body (207) installed in the ventilation cavity (221) via a hook (206); the interior of the box body (207) is filled with a phase change material.

4. A drying device for producing photosensitive dry film according to claim 3, characterized in that: The film inlet and the film outlet in the preheating chamber (1011) and the drying chamber (1013) are both equipped with sealing components that hinder gas circulation. The sealing components include sealing blocks (302) that are symmetrically and sealingly arranged at the film inlet and the film outlet in the preheating chamber (1011) and the drying chamber (1013). The opposite surfaces of the sealing blocks (302) are connected to the rolling cylinder (303) in an axially non-rotatable manner. The inner walls of the preheating chamber (1011) and the drying chamber (1013) are fixedly connected with a first fixed plate (301). An electric telescopic rod (304) is installed on the first fixed 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 sealingly slidably connected to the shell (101). The other sealing block (302) is fixedly connected to the shell (101).

5. A drying device for producing photosensitive dry film according to claim 4, characterized in that: The sealing assembly further comprises a fixing block (308) fixedly connected to the first fixing plate (301); second fixing plates (305) are symmetrically fixedly connected to the inner walls of the preheating chamber (1011) and the drying chamber (1013) in a front-to-rear manner; a guide rod (313) is fixedly connected 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 in a "U" shape; two ends of the sealing plate (306) are respectively sealed and slidably connected to the first fixing plate (301) and a sealing block (302) fixedly connected to the upper shell (101); an elastic sealing member (307) is fixedly connected between the sealing plate (306) and the second fixing plate (305); one side of the elastic sealing member (307) is tightly attached to the side surfaces of the two sealing blocks (302); and the two sealing plates (306) are driven by the driving assembly to move closer to or farther from each other.

6. A drying device for producing photosensitive dry film according to claim 5, characterized in that: It also includes a limit assembly, which includes a mounting plate (401) mounted on the sealing plate (306), a second mounting frame (402) mounted on the mounting plate (401), a detection roller (403) rotatably connected in the second mounting frame (402), and a rotation detector (404) mounted on the rotation axis of the detection roller (403).

7. A drying device for producing photosensitive dry film according to claim 6, characterized in that: The cooling assembly comprises a frame (501) fixedly connected to the outer wall of the cooling chamber (1014); a shutter (502), a dustproof plate (503), a drying plate (504), a condenser (505) and a second induced draft fan (506) are installed in the frame (501) in sequence from the outside to the inside of the shell (101); a condenser (509) is installed on the outer wall of the shell (101); and the condenser (509) is connected to the condenser (505) through a pipeline.

8. A drying device for producing photosensitive dry film according to claim 7, characterized in that: The cooling assembly also includes an inclined block (507) symmetrically fixed to the inner wall of the cooling chamber (1014), and the inclined block (507) is arranged at the film outlet of the cooling chamber (1014); in the direction from the film inlet to the film outlet, the distance between the sides of the two inclined blocks (507) 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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